From 64d9675091593b074d3ad1e71829291728914cee Mon Sep 17 00:00:00 2001 From: Matthew Kosarek Date: Wed, 19 May 2021 20:47:59 -0400 Subject: Removed rigidbody physics demos so that I can redo them properly --- 2d/_collisions/pill_line.html | 4 +- 2d/_collisions/pill_pill.html | 4 +- 2d/_collisions/polygon_polygon.html | 4 +- 2d/_collisions/rectangle_line.html | 4 +- 2d/_collisions/rectangle_rectangle.html | 4 +- 2d/_rigidbody/part_1.html | 93 - 2d/_rigidbody/part_2.html | 66 - 2d/_rigidbody/part_3.html | 71 - 2d/_rigidbody/rigidbody_1.js | 117 - 2d/_rigidbody/rigidbody_2.js | 146 -- 2d/_rigidbody/rigidbody_3a.js | 190 -- 2d/_rigidbody/rigidbody_3b.js | 188 -- 2d/rigidbody/rigidbody_1.html | 101 + 2d/rigidbody/rigidbody_1.html.content | 49 + 2d/rigidbody/rigidbody_1/build.sh | 16 + 2d/rigidbody/rigidbody_1/dist/output.js | 3448 +++++++++++++++++++++++++++++ 2d/rigidbody/rigidbody_1/dist/output.wasm | Bin 0 -> 33767 bytes 2d/rigidbody/rigidbody_1/main.cpp | 158 ++ index.html | 4 +- roadmap.html | 4 +- transpiler/pages.txt | 4 +- 21 files changed, 3780 insertions(+), 895 deletions(-) delete mode 100644 2d/_rigidbody/part_1.html delete mode 100644 2d/_rigidbody/part_2.html delete mode 100644 2d/_rigidbody/part_3.html delete mode 100644 2d/_rigidbody/rigidbody_1.js delete mode 100644 2d/_rigidbody/rigidbody_2.js delete mode 100644 2d/_rigidbody/rigidbody_3a.js delete mode 100644 2d/_rigidbody/rigidbody_3b.js create mode 100644 2d/rigidbody/rigidbody_1.html create mode 100644 2d/rigidbody/rigidbody_1.html.content create mode 100755 2d/rigidbody/rigidbody_1/build.sh create mode 100644 2d/rigidbody/rigidbody_1/dist/output.js create mode 100755 2d/rigidbody/rigidbody_1/dist/output.wasm create mode 100644 2d/rigidbody/rigidbody_1/main.cpp diff --git a/2d/_collisions/pill_line.html b/2d/_collisions/pill_line.html index a94e7f9..63ae8ba 100644 --- a/2d/_collisions/pill_line.html +++ b/2d/_collisions/pill_line.html @@ -18,9 +18,7 @@ 🏀2D

Rigidbody
Linear Forces
Rotational Forces
Collision Forces
Linear Forces
Collisions
Circle-Line
Rectangle-Line

🏀2D

Rigidbody
Linear Forces
Rotational Forces
Collision Forces
Linear Forces
Collisions
Circle-Line
Rectangle-Line

🏀2D

Rigidbody
Linear Forces
Rotational Forces
Collision Forces
Linear Forces
Collisions
Circle-Line
Rectangle-Line

🏀2D

Rigidbody
Linear Forces
Rotational Forces
Collision Forces
Linear Forces
Collisions
Circle-Line
Rectangle-Line

🏀2D

Rigidbody
Linear Forces
Rotational Forces
Collision Forces
Linear Forces
Collisions
Circle-Line
Rectangle-Line

Physics for Games

- -

Part 1: Linear Forces

- The first - and perhaps easiest - part of implementing any rigid body physics system is getting the entities in your scene to move in response to linear forces. - With this implementation alone, you can achieve an interesting level of realism in your 2D (and even 3D) scene. -

- Let's begin by recalling the relationships between acceleration, velocity, and position. -

- Knowing all this, you should be able to understand the following source code fairly easily; -

-                            
-    function update(dtSeconds) {
-        // Add up the forces acting on the circle
-        const GRAVITY = 9.8;
-        const lGravityForce = vec2(0, -1.0 * (lCircle.mass * GRAVITY));
-        lCircle.force = addVec2(lCircle.force, lGravityForce);
-    
-        // Figure out acceleration (a = F / m)
-        const lCurrentAcceleration = scaleVec2(lCircle.force, 1.0 / lCircle.mass);
-    
-        // Calculate the new velocity: v = v0 + a * t
-        lCircle.velocity = addVec2(lCircle.velocity, scaleVec2(lCurrentAcceleration, dtSeconds));
-    
-        // Update the position based on velocity: x = x0 + v * t
-        lCircle.position = addVec2(lCircle.position, scaleVec2(lCircle.velocity, dtSeconds));
-    
-        // Update the model matrix accordingly
-        lCircle.model = translateMatrix(mat4(), lCircle.position.x, lCircle.position.y, 0);
-    
-        // Reset the force vector for the next update
-        lCircle.force = vec2()
-    }
-                            
-

Linear Force:N/A
Linear Acceleration:N/A
Linear Velocity:N/A
Linear Position:N/A

- -

- - -

Physics for Games

- -

Part 2: Rotational Forces

- Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. -

Angular Force:N/A
Angular Acceleration:N/A
Angular Velocity:N/A
Angular Position:N/A

- -

- - -

Physics for Games

- -

Part 3: Collisions

Implementation

- Time Step - -

- - -

Plinko Game

- -

- - -

-/// -/// -/// -/// -/// - -(function() { - - function main() { - // Define Constants - const CIRCLE_RADIUS = 16; - const GRAVITY = 9.8; - - // Retrieve context - const lProgramContext = getContext('#rigidbody_1'); - - if (lProgramContext.gl === null) { - console.error('Unable to initialize WebGL. Your browser or machine may not support it.'); - return; - } - - lProgramContext.gl.clearColor(0.0, 0.0, 0.0, 1.0); - lProgramContext.gl.clear(lProgramContext.gl.COLOR_BUFFER_BIT); - - function run() { - console.log('Running Rigid Body 1'); - lProgramContext.load().then(function(pProgramInfo) { - const lCircle = circle(lProgramContext.gl, CIRCLE_RADIUS, 30, [{ x: 0.3, y: 0.3, z: 0.3, w: 1 }], vec2(lProgramContext.width / 2.0, lProgramContext.height / 2.0)); - - function update(pDeltaTimeSeconds) { - // Physics updates - const lGravityForce = vec2(0, -1.0 * (lCircle.mass * GRAVITY)); - - // Add up the forces acting on the circle - lCircle.force = addVec2(lCircle.force, lGravityForce); - - // Figure out acceleration (a = F / m) - const lCurrentAcceleration = scaleVec2(lCircle.force, 1.0 / lCircle.mass); - - // Calculate the new velocity: v = v0 + a * t - lCircle.velocity = addVec2(lCircle.velocity, scaleVec2(lCurrentAcceleration, pDeltaTimeSeconds)); - - // Update the position based on velocity: x = x0 + v * t - lCircle.position = addVec2(lCircle.position, scaleVec2(lCircle.velocity, pDeltaTimeSeconds)); - - // Update the model matrix accordingly - lCircle.model = translateMatrix(mat4(), lCircle.position.x, lCircle.position.y, 0); - - // Report the current state to the frontend - $('#rigidbody_1_force_field').text(vec2str(lCircle.force)); - $('#rigidbody_1_acceleration_field').text(vec2str(lCurrentAcceleration)); - $('#rigidbody_1_velocity_field').text(vec2str(lCircle.velocity)); - $('#rigidbody_1_position_field').text(vec2str(lCircle.position)); - - // Reset the circle's force vector - lCircle.force = vec2(); - - // Render Code only - lProgramContext.gl.clearColor(0.0, 0.0, 0.0, 1.0); // Clear to black, fully opaque - lProgramContext.gl.clearDepth(1.0); // Clear everything - lProgramContext.gl.enable(lProgramContext.gl.DEPTH_TEST); // Enable depth testing - lProgramContext.gl.depthFunc(lProgramContext.gl.LEQUAL); // Near things obscure far things - lProgramContext.gl.clear(lProgramContext.gl.COLOR_BUFFER_BIT | lProgramContext.gl.DEPTH_BUFFER_BIT); - - lProgramContext.gl.useProgram(pProgramInfo.program); - lProgramContext.gl.uniformMatrix4fv(pProgramInfo.uniformLocations.projection, false, lProgramContext.perspective); - lProgramContext.gl.uniformMatrix4fv(pProgramInfo.uniformLocations.model, false, lCircle.model); - - renderCircle(lProgramContext.gl, pProgramInfo, lCircle); - } - - function addForce(ev) { - ev.preventDefault(); - ev.stopPropagation(); - - let lXValue = $(this).find('.vec2_x_input').val(), - lYValue = $(this).find('.vec2_y_input').val(); - - if (lXValue.length === 0) { - lXValue = 0; - } - - if (lYValue.length === 0) { - lYValue = 5000; - } - - console.log('Applying force: ' + lXValue + ', ' + lYValue); - lCircle.force = addVec2(lCircle.force, vec2(Number(lXValue), Number(lYValue))); - } - - function cleanup() { - lProgramContext.gl.deleteBuffer(lCircle.buffer); - lProgramContext.gl.deleteProgram(pProgramInfo.program); - lProgramContext.gl.clearColor(0.0, 0.0, 0.0, 1.0); - lProgramContext.gl.clear(lProgramContext.gl.COLOR_BUFFER_BIT); - } - - function reset() { - lExitRequestFunc(); - lProgramContext.reset(); - $('#rigidbody_1_force_submit_button').unbind('submit').submit(false); - } - - const lExitRequestFunc = requestUpdateLoop(update, cleanup); - lProgramContext.stopButton.on('click', reset); - $('#rigidbody_1_force_submit_button').submit(addForce); - }); - } - - lProgramContext.playButton.on('click', run); - $('#rigidbody_1_force_submit_button').submit(false); - - } - - $(document).ready(main); -})() \ No newline at end of file diff --git a/2d/_rigidbody/rigidbody_2.js b/2d/_rigidbody/rigidbody_2.js deleted file mode 100644 index 76d8047..0000000 --- a/2d/_rigidbody/rigidbody_2.js +++ /dev/null @@ -1,146 +0,0 @@ -/// -/// -/// -/// -/// -/// - -(function() { - function main() { - // Define Constants - const CIRCLE_RADIUS = 16; - const GRAVITY = 9.8; - - // Retrieve context - const lProgramContext = getContext('#rigidbody_2'); - - if (lProgramContext.gl === null) { - console.error('Unable to initialize WebGL. Your browser or machine may not support it.'); - return; - } - - lProgramContext.gl.clearColor(0.0, 0.0, 0.0, 1.0); - lProgramContext.gl.clear(lProgramContext.gl.COLOR_BUFFER_BIT); - - function run() { - console.log('Running Rigid Body 2'); - lProgramContext.load().then(function(pProgramInfo) { - const lCircle = circle(lProgramContext.gl, CIRCLE_RADIUS, 30, [ - { x: 1, y: 1, z: 0, w: 1 }, - { x: 1, y: 0, z: 1, w: 1 }, - { x: 0, y: 1, z: 1, w: 1 }, - { x: 0, y: 1, z: 0, w: 1 } - ], vec2(lProgramContext.width / 2.0, lProgramContext.height / 2.0)); - - function update(pDeltaTimeSeconds) { - // Same physics updates from part 1 - applyForce(vec2(0, -1.0 * (lCircle.mass * GRAVITY))); - const lCurrentAcceleration = scaleVec2(lCircle.force, 1.0 / lCircle.mass); - lCircle.velocity = addVec2(lCircle.velocity, scaleVec2(lCurrentAcceleration, pDeltaTimeSeconds)); - lCircle.position = addVec2(lCircle.position, scaleVec2(lCircle.velocity, pDeltaTimeSeconds)); - lCircle.force = vec2(); - - // Angular code starts here - - // Retrieve the moment of inertia for our shape (Ours is a circle by default) - const lMomentOfInertia = getCircleMomentOfInertia(lCircle); - - // Calculate the angular acceperation (omega = T / I) - const lAngularAcceleration = lCircle.torque / lMomentOfInertia; - - // Calculate the rotation in radians - lCircle.rotationVelocity += lAngularAcceleration * pDeltaTimeSeconds; - lCircle.rotationRadians += lCircle.rotationVelocity * pDeltaTimeSeconds; - lCircle.torque = 0; - - // Calculate the model as previously, but this time, also rotate it - lCircle.model = rotateMatrix2d(translateMatrix(mat4(), lCircle.position.x, lCircle.position.y, 0), lCircle.rotationRadians); - - // Render Code only - lProgramContext.gl.clearColor(0.0, 0.0, 0.0, 1.0); - lProgramContext.gl.clearDepth(1.0); - lProgramContext.gl.enable(lProgramContext.gl.DEPTH_TEST); - lProgramContext.gl.depthFunc(lProgramContext.gl.LEQUAL); - lProgramContext.gl.clear(lProgramContext.gl.COLOR_BUFFER_BIT | lProgramContext.gl.DEPTH_BUFFER_BIT); - - lProgramContext.gl.useProgram(pProgramInfo.program); - lProgramContext.gl.uniformMatrix4fv(pProgramInfo.uniformLocations.projection, false, lProgramContext.perspective); - lProgramContext.gl.uniformMatrix4fv(pProgramInfo.uniformLocations.model, false, lCircle.model); - - renderCircle(lProgramContext.gl, pProgramInfo, lCircle); - } - - const TORQUE_MULTIPLIER = 100.0; // TODO: This may be unncessary - - function applyForce(pForceVector, pPointOfApplication) { - if (pPointOfApplication !== undefined) { - const lOriginToPointOfApp = subVec2(vec2(), pPointOfApplication), // The point of application is relative to the model (i.e. the center of the circle, not the scene) - lPerpVec = vec2(-lOriginToPointOfApp.y, lOriginToPointOfApp.x); // Retrieve the perpendicular vector - - // Calculate the torque from the perp dot (T = r_perp . F) - lCircle.torque += TORQUE_MULTIPLIER * dot2(lPerpVec, pForceVector); - } - - lCircle.force = addVec2(lCircle.force, pForceVector); - } - - function cleanup() { - lProgramContext.gl.deleteBuffer(lCircle.buffer); - lProgramContext.gl.deleteProgram(pProgramInfo.program); - lProgramContext.gl.clearColor(0.0, 0.0, 0.0, 1.0); - lProgramContext.gl.clear(lProgramContext.gl.COLOR_BUFFER_BIT); - } - - function reset() { - lExitRequestFunc(); - lProgramContext.reset(); - $('#rigidbody_2_force_submit_button').unbind('submit').submit(false); - } - - const lExitRequestFunc = requestUpdateLoop(update, cleanup); - lProgramContext.stopButton.on('click', reset); - $('#rigidbody_2_force_submit_button').submit(function(pEv) { - pEv.preventDefault(); - pEv.stopPropagation(); - - // Read in the force vector from the form - const lForceGroup = $('#rigidbody_2_force_input'), - lPositionGroup = $('#rigidbody_2_position_input'); - - let lForceVectorX = lForceGroup.find('.vec2_x_input').val(), - lForceVectorY = lForceGroup.find('.vec2_y_input').val(); - - if (lForceVectorX.length === 0) { - lForceVectorX = 0; - } - - if (lForceVectorY.length === 0) { - lForceVectorY = 5000; - } - - // Read in the point of application vector from the form - let lPositionGroupX = lPositionGroup.find('.vec2_x_input').val(), - lPositionGroupY = lPositionGroup.find('.vec2_y_input').val(); - - if (lPositionGroupX.length === 0) { - lPositionGroupX = -Math.sqrt(2) / 2; - } - - if (lPositionGroupY.length === 0) { - lPositionGroupY = -Math.sqrt(2) / 2; - } - - const lForceVector = vec2(Number(lForceVectorX), Number(lForceVectorY)); - const lPointOfApplication = scaleVec2(normalize2(vec2(Number(lPositionGroupX), Number(lPositionGroupY))), lCircle.radius); - - applyForce(lForceVector, lPointOfApplication); - }); - }); - } - - lProgramContext.playButton.on('click', run); - $('#rigidbody_2_force_submit_button').submit(false); - } - - $(document).ready(main); -})() \ No newline at end of file diff --git a/2d/_rigidbody/rigidbody_3a.js b/2d/_rigidbody/rigidbody_3a.js deleted file mode 100644 index ef9577b..0000000 --- a/2d/_rigidbody/rigidbody_3a.js +++ /dev/null @@ -1,190 +0,0 @@ -/// -/// -/// -/// -/// -/// - -(function() { - function main() { - // Define Constants - const CIRCLE_RADIUS = 16; - const GRAVITY = 9.8; - const COF_OF_RESTITUITION = 0.7; - - // Retrieve context - const lProgramContext = getContext('#rigidbody_3a'); - - if (lProgramContext.gl === null) { - console.error('Unable to initialize WebGL. Your browser or machine may not support it.'); - return; - } - - lProgramContext.gl.clearColor(0.0, 0.0, 0.0, 1.0); - lProgramContext.gl.clear(lProgramContext.gl.COLOR_BUFFER_BIT); - - function run() { - console.log('Running Rigid Body 3a'); - lProgramContext.load().then(function(pProgramInfo) { - // Circile initialization - const horizontalCircle = circle(lProgramContext.gl, CIRCLE_RADIUS, 30, [ - { x: 1, y: 1, z: 0, w: 1 }, - { x: 1, y: 0, z: 1, w: 1 }, - { x: 0, y: 1, z: 1, w: 1 }, - { x: 0, y: 1, z: 0, w: 1 } - ], vec2(400, lProgramContext.height / 2.0)); - - const verticalCircle = circle(lProgramContext.gl, CIRCLE_RADIUS, 30, [ - { x: 1, y: 0, z: 0, w: 1 }, - { x: 0, y: 1, z: 0, w: 1 }, - { x: 0, y: 0, z: 1, w: 1 } - ], vec2(lProgramContext.width / 2.0, lProgramContext.height / 2.0 + 100)); - - horizontalCircle.velocity = vec2(-100, 0); - verticalCircle.velocity = vec2(0, -100); - - lTimeStepScale = $('#time_step_slider').val(); - - /** - * Run the update method of a single circle - * - * @param {circle} pCircle - * @param {number} pDeltaTimeSeconds - */ - function updateCircle(pCircle, pDeltaTimeSeconds) { - // Same physics updates from part 1 - applyForce(pCircle, vec2(0, -1.0 * (pCircle.mass * GRAVITY))); - const lCurrentAcceleration = scaleVec2(pCircle.force, 1.0 / pCircle.mass); - pCircle.prevVelocity = pCircle.velocity; - pCircle.velocity = addVec2(pCircle.velocity, scaleVec2(lCurrentAcceleration, pDeltaTimeSeconds)); - pCircle.prevPos = { ...pCircle.position }; - pCircle.position = addVec2(pCircle.position, scaleVec2(pCircle.velocity, pDeltaTimeSeconds)); - pCircle.force = vec2(); - - // Same physics updates from part 2 - const lMomentOfInertia = getCircleMomentOfInertia(pCircle); - const lAngularAcceleration = pCircle.torque / lMomentOfInertia; - pCircle.rotationVelocity += lAngularAcceleration * pDeltaTimeSeconds; - pCircle.rotationRadians += pCircle.rotationVelocity * pDeltaTimeSeconds; - pCircle.torque = 0; - - pCircle.model = rotateMatrix2d(translateMatrix(mat4(), pCircle.position.x, pCircle.position.y, 0), pCircle.rotationRadians); - } - - function update(pDeltaTimeSeconds) { - pDeltaTimeSeconds = pDeltaTimeSeconds * lTimeStepScale; - updateCircle(horizontalCircle, pDeltaTimeSeconds); - updateCircle(verticalCircle, pDeltaTimeSeconds); - collision(pDeltaTimeSeconds); - render(); - } - - function collision(pDeltaTimeSeconds) { - if (!doCirclesIntersect(horizontalCircle, verticalCircle)) { - return false; - } - - // We have an intersection! Let's try and figure out precisely when that happened. - let lSubdividedDeltaTime = pDeltaTimeSeconds; - let lSubdivideHorizontalBall = undefined, - lSubdivideVerticalBall = undefined; - - do { - lSubdivideHorizontalBall = JSON.parse(JSON.stringify(horizontalCircle)); - lSubdivideHorizontalBall.position = {...horizontalCircle.prevPos}; - lSubdivideHorizontalBall.velocity = {...horizontalCircle.prevVelocity}; - - lSubdivideVerticalBall = JSON.parse(JSON.stringify(verticalCircle)); - lSubdivideVerticalBall.position = {...verticalCircle.prevPos}; - lSubdivideVerticalBall.velocity = {...verticalCircle.prevVelocity}; - - lSubdividedDeltaTime = lSubdividedDeltaTime / 2.0; - updateCircle(lSubdivideHorizontalBall, lSubdividedDeltaTime); - updateCircle(lSubdivideVerticalBall, lSubdividedDeltaTime); - - if (lSubdividedDeltaTime === 0) { - console.error('This should NOT be happening'); - break; - } - } while (doCirclesIntersect(lSubdivideHorizontalBall, lSubdivideVerticalBall)) - - const lIntersectionResult = getIntersectionDataForCircles(lSubdivideHorizontalBall, lSubdivideVerticalBall); - - console.log('We have a collision'); - const lRelativeVelocity = lIntersectionResult.relativeVelocity, - lCollisionNormal = lIntersectionResult.collisionNormal, - lFirstPerp = getPerp2(lIntersectionResult.firstPointOfApplication), - lSecondPerp = getPerp2(lIntersectionResult.secondPointOfApplication); - - const lNumerator = dot2(scaleVec2(lRelativeVelocity, -(1.0 + COF_OF_RESTITUITION)), lCollisionNormal); - const lLinearDenomPart = dot2(lCollisionNormal, (scaleVec2(lCollisionNormal, 1 / horizontalCircle.mass + 1 / verticalCircle.mass))); - const lRotationalDenomPart = (Math.pow(dot2(lFirstPerp, lCollisionNormal), 2) / getCircleMomentOfInertia(horizontalCircle)) - + (Math.pow(dot2(lSecondPerp, lCollisionNormal), 2) / getCircleMomentOfInertia(verticalCircle)) - - const lImpulseMagnitude = lNumerator / (lLinearDenomPart + lRotationalDenomPart); - - horizontalCircle.position = lSubdivideHorizontalBall.position; - verticalCircle.position = lSubdivideVerticalBall.position; - - horizontalCircle.velocity = addVec2(horizontalCircle.velocity, scaleVec2(lCollisionNormal, lImpulseMagnitude / horizontalCircle.mass)); - verticalCircle.velocity = subVec2(verticalCircle.velocity, scaleVec2(lCollisionNormal, lImpulseMagnitude / verticalCircle.mass)); - - horizontalCircle.rotationVelocity = horizontalCircle.rotationVelocity + dot2(lFirstPerp, scaleVec2(lCollisionNormal, lImpulseMagnitude)) / getCircleMomentOfInertia(horizontalCircle); - verticalCircle.rotationVelocity = verticalCircle.rotationVelocity - dot2(lSecondPerp, scaleVec2(lCollisionNormal, lImpulseMagnitude)) / getCircleMomentOfInertia(verticalCircle); - - updateCircle(horizontalCircle, pDeltaTimeSeconds - lSubdividedDeltaTime); - updateCircle(verticalCircle, pDeltaTimeSeconds - lSubdividedDeltaTime); - - return true; - } - - function render() { - lProgramContext.gl.clearColor(0.0, 0.0, 0.0, 1.0); - lProgramContext.gl.clearDepth(1.0); - lProgramContext.gl.enable(lProgramContext.gl.DEPTH_TEST); - lProgramContext.gl.depthFunc(lProgramContext.gl.LEQUAL); - lProgramContext.gl.clear(lProgramContext.gl.COLOR_BUFFER_BIT | lProgramContext.gl.DEPTH_BUFFER_BIT); - lProgramContext.gl.useProgram(pProgramInfo.program); - lProgramContext.gl.uniformMatrix4fv(pProgramInfo.uniformLocations.projection, false, lProgramContext.perspective); - - renderCircle(lProgramContext.gl, pProgramInfo, horizontalCircle); - renderCircle(lProgramContext.gl, pProgramInfo, verticalCircle); - } - - const TORQUE_MULTIPLIER = 100.0; // TODO: This may be unncessary - function applyForce(pCircle, pForceVector, pPointOfApplication) { - if (pPointOfApplication !== undefined) { - const lOriginToPointOfApp = subVec2(vec2(), pPointOfApplication), - lPerpVec = vec2(-lOriginToPointOfApp.y, lOriginToPointOfApp.x); - - pCircle.torque += TORQUE_MULTIPLIER * dot2(lPerpVec, pForceVector); - } - - pCircle.force = addVec2(pCircle.force, pForceVector); - } - - function cleanup() { - lProgramContext.gl.deleteBuffer(horizontalCircle.buffer); - lProgramContext.gl.deleteBuffer(verticalCircle.buffer); - lProgramContext.gl.deleteProgram(pProgramInfo.program); - lProgramContext.gl.clearColor(0.0, 0.0, 0.0, 1.0); - lProgramContext.gl.clear(lProgramContext.gl.COLOR_BUFFER_BIT); - } - - function reset() { - lExitRequestFunc(); - lProgramContext.reset(); - $('#time_step_slider').unbind('change'); - } - - const lExitRequestFunc = requestUpdateLoop(update, cleanup); - lProgramContext.stopButton.on('click', reset); - $('#time_step_slider').on('change', function() { lTimeStepScale = $(this).val(); }); - }); - } - - lProgramContext.playButton.on('click', run); - } - - $(document).ready(main); -})() \ No newline at end of file diff --git a/2d/_rigidbody/rigidbody_3b.js b/2d/_rigidbody/rigidbody_3b.js deleted file mode 100644 index ddb4c70..0000000 --- a/2d/_rigidbody/rigidbody_3b.js +++ /dev/null @@ -1,188 +0,0 @@ -/// -/// -/// -/// -/// -/// - -(function() { - // Define Constants - const GRAVITY = 50.0; - const COF_OF_RESTITUITION = 0.9; - - var lProgramContext = undefined; - - function main() { - lProgramContext = getContext('#rigidbody_3b'); - - if (lProgramContext.gl === null) { - console.error('Unable to initialize WebGL. Your browser or machine may not support it.'); - return; - } - - lProgramContext.gl.clearColor(0.0, 0.0, 0.0, 1.0); - lProgramContext.gl.clear(lProgramContext.gl.COLOR_BUFFER_BIT); - lProgramContext.playButton.on('click', run); - } - - function run() { - console.log('Running Rigid Body 3b'); - lProgramContext.load().then(function(pProgramInfo) { - const lNumHorizontalPegs = lProgramContext.width / 80.0, - lNumVerticalPegs = lProgramContext.height / 80.0, - lBall = circle(lProgramContext.gl, 16.0, 16, - [ { x: 1, y: 0, z: 0, w: 1 }, { x: 0, y: 1, z: 0, w: 1 }, { x: 0, y: 0, z: 1, w: 1 } ], - vec2(38 * 8, lProgramContext.height - 24.0), 10.0), - lPegList = []; - - lBall.velocity = vec2(0, -50.0); - - // Generate a peg. These pegs will NOT be updated, so that they - // dont' fall due to gravity. - for (let lRowIdx = 0; lRowIdx < lNumVerticalPegs - 1; lRowIdx++) { - for (let lColIdx = 0; lColIdx <= lNumHorizontalPegs; lColIdx++) { - lPegList.push(circle(lProgramContext.gl, - 16.0, 16, - [ { x: 165.0 / 255.0, y: 42.0 / 255.0, z: 42.0 / 255.0, w: 1.0 }], - vec2((lRowIdx % 2 ? 40 : 0) + (lColIdx) * 80.0, lRowIdx * 80.0), - 10000 // Real big so it's almost negligble - )); - } - } - - function updateCircle(pCircle, pDeltaTimeSeconds) { - // Same physics updates from part 1 - applyForce(pCircle, vec2(0, -1.0 * (pCircle.mass * GRAVITY))); - const lCurrentAcceleration = scaleVec2(pCircle.force, 1.0 / pCircle.mass); - pCircle.prevVelocity = pCircle.velocity; - pCircle.velocity = addVec2(pCircle.velocity, scaleVec2(lCurrentAcceleration, pDeltaTimeSeconds)); - pCircle.prevPos = { ...pCircle.position }; - pCircle.position = addVec2(pCircle.position, scaleVec2(pCircle.velocity, pDeltaTimeSeconds)); - pCircle.force = vec2(); - - // Same physics updates from part 2 - - const lMomentOfInertia = getCircleMomentOfInertia(pCircle); - const lAngularAcceleration = pCircle.torque / lMomentOfInertia; - pCircle.rotationVelocity += lAngularAcceleration * pDeltaTimeSeconds; - pCircle.rotationRadians += pCircle.rotationVelocity * pDeltaTimeSeconds; - pCircle.torque = 0; - - pCircle.model = rotateMatrix2d(translateMatrix(mat4(), pCircle.position.x, pCircle.position.y, 0), pCircle.rotationRadians); - } - - function update(pDeltaTimeSeconds) { - updateCircle(lBall, pDeltaTimeSeconds); - collision(pDeltaTimeSeconds); - render(); - } - - function collision(pDeltaTimeSeconds) { - for (let lPegIdx = 0; lPegIdx < lPegList.length; lPegIdx++) { - const lPeg = lPegList[lPegIdx]; - - if (!doCirclesIntersect(lPeg, lBall)) { - continue; - } - - // We have an intersection! Let's try and figure out precisely when that happened. - let lSubdividedDeltaTime = pDeltaTimeSeconds; - - // Create a ball and move it back to the balls previous position - let lSubdividedBall = undefined; - - do { - // Move the subdivided ball back to the previous position, and then - // advance its position by increasingly smaller timestep. This could be pretty - // slow in some circumstances, and it most definitely does not prevent tunneling, - // but - for now - this is not so bad. - lSubdividedBall = JSON.parse(JSON.stringify(lBall)); - lSubdividedBall.position = {...lBall.prevPos}; - lSubdividedBall.velocity = {...lBall.prevVelocity}; - lSubdividedDeltaTime = lSubdividedDeltaTime / 2.0; - updateCircle(lSubdividedBall, lSubdividedDeltaTime); - if (lSubdividedDeltaTime === 0) { - console.error('This should NOT be happening'); - break; - } - } while (doCirclesIntersect(lPeg, lSubdividedBall)) - - // The ball is no longer intersecting at the time presented here. That means this is - // (nearly) the precise point of intersection. - - const lIntersectionResult = getIntersectionDataForCircles(lPeg, lSubdividedBall); - - const lRelativeVelocity = lIntersectionResult.relativeVelocity, - lCollisionNormal = lIntersectionResult.collisionNormal, - lFirstPerp = getPerp2(lIntersectionResult.firstPointOfApplication), - lSecondPerp = getPerp2(lIntersectionResult.secondPointOfApplication); - - const lNumerator = dot2(scaleVec2(lRelativeVelocity, -(1.0 + COF_OF_RESTITUITION)), lCollisionNormal); - const lLinearDenomPart = dot2(lCollisionNormal, (scaleVec2(lCollisionNormal, 1 / lBall.mass))); - const lRotationalDenomPart = (Math.pow(dot2(lFirstPerp, lCollisionNormal), 2) / getCircleMomentOfInertia(lPeg)) - + (Math.pow(dot2(lSecondPerp, lCollisionNormal), 2) / getCircleMomentOfInertia(lBall)) - - const lImpulseMagnitude = lNumerator / (lLinearDenomPart + lRotationalDenomPart); - - lBall.position = lSubdividedBall.position; // Move the ball back to its proper subdivided position - lBall.velocity = subVec2(lBall.velocity, scaleVec2(lCollisionNormal, lImpulseMagnitude / lBall.mass)); - lBall.rotationVelocity = lBall.rotationVelocity - dot2(lSecondPerp, scaleVec2(lCollisionNormal, lImpulseMagnitude)) / getCircleMomentOfInertia(lBall); - - // Now we update in our new direction with the remaining time that we have left. - updateCircle(lBall, pDeltaTimeSeconds - lSubdividedDeltaTime); - - break; - } - } - - function render() { - lProgramContext.gl.clearColor(0.0, 0.0, 0.0, 1.0); - lProgramContext.gl.clearDepth(1.0); - lProgramContext.gl.enable(lProgramContext.gl.DEPTH_TEST); - lProgramContext.gl.depthFunc(lProgramContext.gl.LEQUAL); - lProgramContext.gl.clear(lProgramContext.gl.COLOR_BUFFER_BIT | lProgramContext.gl.DEPTH_BUFFER_BIT); - lProgramContext.gl.useProgram(pProgramInfo.program); - lProgramContext.gl.uniformMatrix4fv(pProgramInfo.uniformLocations.projection, false, lProgramContext.perspective); - - lPegList.forEach(function(pCircle) { - renderCircle(lProgramContext.gl, pProgramInfo, pCircle); - }); - - renderCircle(lProgramContext.gl, pProgramInfo, lBall); - } - - const TORQUE_MULTIPLIER = 100.0; // TODO: This may be unncessary - function applyForce(pCircle, pForceVector, pPointOfApplication) { - if (pPointOfApplication !== undefined) { - const lOriginToPointOfApp = subVec2(vec2(), pPointOfApplication), - lPerpVec = vec2(-lOriginToPointOfApp.y, lOriginToPointOfApp.x); - - pCircle.torque += TORQUE_MULTIPLIER * dot2(lPerpVec, pForceVector); - } - - pCircle.force = addVec2(pCircle.force, pForceVector); - } - - function cleanup() { - lPegList.forEach(function(pCircle) { freeCircle(lProgramContext.gl, pCircle); }); - freeCircle(lProgramContext.gl, lBall); - - lProgramContext.gl.deleteProgram(pProgramInfo.program); - lProgramContext.gl.clearColor(0.0, 0.0, 0.0, 1.0); - lProgramContext.gl.clear(lProgramContext.gl.COLOR_BUFFER_BIT); - } - - function reset() { - lExitRequestFunc(); - lProgramContext.reset(); - $('#time_step_slider').unbind('change'); - } - - const lExitRequestFunc = requestUpdateLoop(update, cleanup); - lProgramContext.stopButton.on('click', reset); - $('#time_step_slider').on('change', function() { lTimeStepScale = $(this).val(); }); - }); - } - - $(document).ready(main); -})() \ No newline at end of file diff --git a/2d/rigidbody/rigidbody_1.html b/2d/rigidbody/rigidbody_1.html new file mode 100644 index 0000000..9bc7b45 --- /dev/null +++ b/2d/rigidbody/rigidbody_1.html @@ -0,0 +1,101 @@ + + + + + + Physics for Games + + + +

Physics for Games

+ + + +

Rigidbody #1: Linear Forces

+ In this first installment of my 2D rigidbody tutorial, we are going to explore linear forces and how we can begin to simulate them in real time on a computer. As you'll come to see, 2D forces are quite easy to understand and implement if you have some basic knowledge of 2D maths. On top of that, they really add a lot of life into what would otherwise be a static 2D scene. Without further ado, let's jump in. +

What is a Force Anyway?

+ +

+ Live Example +

+ + +

+ +

+ + diff --git a/2d/rigidbody/rigidbody_1.html.content b/2d/rigidbody/rigidbody_1.html.content new file mode 100644 index 0000000..e806ffc --- /dev/null +++ b/2d/rigidbody/rigidbody_1.html.content @@ -0,0 +1,49 @@ + + +

Rigidbody #1: Linear Forces

What is a Force Anyway?

+ +

+ Live Example +

+ + +

+ +

diff --git a/2d/rigidbody/rigidbody_1/build.sh b/2d/rigidbody/rigidbody_1/build.sh new file mode 100755 index 0000000..892dddd --- /dev/null +++ b/2d/rigidbody/rigidbody_1/build.sh @@ -0,0 +1,16 @@ +filepaths="" + +for file in ../../../shared_cpp/*; do + if [ -f "$file" ]; then + if [[ "$file" == *.cpp ]]; then + filepaths+=" $file" + fi + fi +done + +if [ ! -d ./dist ]; then + mkdir ./dist +fi + +echo "$filepaths" +emcc -o dist/output.js main.cpp $filepaths -s ALLOW_MEMORY_GROWTH=1 -s USE_WEBGL2=1 -s FULL_ES3=1 -s WASM=1 -s NO_EXIT_RUNTIME=1 \ No newline at end of file diff --git a/2d/rigidbody/rigidbody_1/dist/output.js b/2d/rigidbody/rigidbody_1/dist/output.js new file mode 100644 index 0000000..42a4ed5 --- /dev/null +++ b/2d/rigidbody/rigidbody_1/dist/output.js @@ -0,0 +1,3448 @@ + + +// The Module object: Our interface to the outside world. We import +// and export values on it. There are various ways Module can be used: +// 1. Not defined. We create it here +// 2. A function parameter, function(Module) { ..generated code.. } +// 3. pre-run appended it, var Module = {}; ..generated code.. +// 4. External script tag defines var Module. +// We need to check if Module already exists (e.g. case 3 above). +// Substitution will be replaced with actual code on later stage of the build, +// this way Closure Compiler will not mangle it (e.g. case 4. above). +// Note that if you want to run closure, and also to use Module +// after the generated code, you will need to define var Module = {}; +// before the code. Then that object will be used in the code, and you +// can continue to use Module afterwards as well. +var Module = typeof Module !== 'undefined' ? Module : {}; + +// --pre-jses are emitted after the Module integration code, so that they can +// refer to Module (if they choose; they can also define Module) +// {{PRE_JSES}} + +// Sometimes an existing Module object exists with properties +// meant to overwrite the default module functionality. Here +// we collect those properties and reapply _after_ we configure +// the current environment's defaults to avoid having to be so +// defensive during initialization. +var moduleOverrides = {}; +var key; +for (key in Module) { + if (Module.hasOwnProperty(key)) { + moduleOverrides[key] = Module[key]; + } +} + +var arguments_ = []; +var thisProgram = './this.program'; +var quit_ = function(status, toThrow) { + throw toThrow; +}; + +// Determine the runtime environment we are in. You can customize this by +// setting the ENVIRONMENT setting at compile time (see settings.js). + +var ENVIRONMENT_IS_WEB = false; +var ENVIRONMENT_IS_WORKER = false; +var ENVIRONMENT_IS_NODE = false; +var ENVIRONMENT_IS_SHELL = false; +ENVIRONMENT_IS_WEB = typeof window === 'object'; +ENVIRONMENT_IS_WORKER = typeof importScripts === 'function'; +// N.b. Electron.js environment is simultaneously a NODE-environment, but +// also a web environment. +ENVIRONMENT_IS_NODE = typeof process === 'object' && typeof process.versions === 'object' && typeof process.versions.node === 'string'; +ENVIRONMENT_IS_SHELL = !ENVIRONMENT_IS_WEB && !ENVIRONMENT_IS_NODE && !ENVIRONMENT_IS_WORKER; + +if (Module['ENVIRONMENT']) { + throw new Error('Module.ENVIRONMENT has been deprecated. To force the environment, use the ENVIRONMENT compile-time option (for example, -s ENVIRONMENT=web or -s ENVIRONMENT=node)'); +} + +// `/` should be present at the end if `scriptDirectory` is not empty +var scriptDirectory = ''; +function locateFile(path) { + if (Module['locateFile']) { + return Module['locateFile'](path, scriptDirectory); + } + return scriptDirectory + path; +} + +// Hooks that are implemented differently in different runtime environments. +var read_, + readAsync, + readBinary, + setWindowTitle; + +var nodeFS; +var nodePath; + +if (ENVIRONMENT_IS_NODE) { + if (ENVIRONMENT_IS_WORKER) { + scriptDirectory = require('path').dirname(scriptDirectory) + '/'; + } else { + scriptDirectory = __dirname + '/'; + } + +// include: node_shell_read.js + + +read_ = function shell_read(filename, binary) { + if (!nodeFS) nodeFS = require('fs'); + if (!nodePath) nodePath = require('path'); + filename = nodePath['normalize'](filename); + return nodeFS['readFileSync'](filename, binary ? null : 'utf8'); +}; + +readBinary = function readBinary(filename) { + var ret = read_(filename, true); + if (!ret.buffer) { + ret = new Uint8Array(ret); + } + assert(ret.buffer); + return ret; +}; + +// end include: node_shell_read.js + if (process['argv'].length > 1) { + thisProgram = process['argv'][1].replace(/\\/g, '/'); + } + + arguments_ = process['argv'].slice(2); + + if (typeof module !== 'undefined') { + module['exports'] = Module; + } + + process['on']('uncaughtException', function(ex) { + // suppress ExitStatus exceptions from showing an error + if (!(ex instanceof ExitStatus)) { + throw ex; + } + }); + + process['on']('unhandledRejection', abort); + + quit_ = function(status) { + process['exit'](status); + }; + + Module['inspect'] = function () { return '[Emscripten Module object]'; }; + +} else +if (ENVIRONMENT_IS_SHELL) { + + if (typeof read != 'undefined') { + read_ = function shell_read(f) { + return read(f); + }; + } + + readBinary = function readBinary(f) { + var data; + if (typeof readbuffer === 'function') { + return new Uint8Array(readbuffer(f)); + } + data = read(f, 'binary'); + assert(typeof data === 'object'); + return data; + }; + + if (typeof scriptArgs != 'undefined') { + arguments_ = scriptArgs; + } else if (typeof arguments != 'undefined') { + arguments_ = arguments; + } + + if (typeof quit === 'function') { + quit_ = function(status) { + quit(status); + }; + } + + if (typeof print !== 'undefined') { + // Prefer to use print/printErr where they exist, as they usually work better. + if (typeof console === 'undefined') console = /** @type{!Console} */({}); + console.log = /** @type{!function(this:Console, ...*): undefined} */ (print); + console.warn = console.error = /** @type{!function(this:Console, ...*): undefined} */ (typeof printErr !== 'undefined' ? printErr : print); + } + +} else + +// Note that this includes Node.js workers when relevant (pthreads is enabled). +// Node.js workers are detected as a combination of ENVIRONMENT_IS_WORKER and +// ENVIRONMENT_IS_NODE. +if (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER) { + if (ENVIRONMENT_IS_WORKER) { // Check worker, not web, since window could be polyfilled + scriptDirectory = self.location.href; + } else if (typeof document !== 'undefined' && document.currentScript) { // web + scriptDirectory = document.currentScript.src; + } + // blob urls look like blob:http://site.com/etc/etc and we cannot infer anything from them. + // otherwise, slice off the final part of the url to find the script directory. + // if scriptDirectory does not contain a slash, lastIndexOf will return -1, + // and scriptDirectory will correctly be replaced with an empty string. + if (scriptDirectory.indexOf('blob:') !== 0) { + scriptDirectory = scriptDirectory.substr(0, scriptDirectory.lastIndexOf('/')+1); + } else { + scriptDirectory = ''; + } + + // Differentiate the Web Worker from the Node Worker case, as reading must + // be done differently. + { + +// include: web_or_worker_shell_read.js + + + read_ = function(url) { + var xhr = new XMLHttpRequest(); + xhr.open('GET', url, false); + xhr.send(null); + return xhr.responseText; + }; + + if (ENVIRONMENT_IS_WORKER) { + readBinary = function(url) { + var xhr = new XMLHttpRequest(); + xhr.open('GET', url, false); + xhr.responseType = 'arraybuffer'; + xhr.send(null); + return new Uint8Array(/** @type{!ArrayBuffer} */(xhr.response)); + }; + } + + readAsync = function(url, onload, onerror) { + var xhr = new XMLHttpRequest(); + xhr.open('GET', url, true); + xhr.responseType = 'arraybuffer'; + xhr.onload = function() { + if (xhr.status == 200 || (xhr.status == 0 && xhr.response)) { // file URLs can return 0 + onload(xhr.response); + return; + } + onerror(); + }; + xhr.onerror = onerror; + xhr.send(null); + }; + +// end include: web_or_worker_shell_read.js + } + + setWindowTitle = function(title) { document.title = title }; +} else +{ + throw new Error('environment detection error'); +} + +// Set up the out() and err() hooks, which are how we can print to stdout or +// stderr, respectively. +var out = Module['print'] || console.log.bind(console); +var err = Module['printErr'] || console.warn.bind(console); + +// Merge back in the overrides +for (key in moduleOverrides) { + if (moduleOverrides.hasOwnProperty(key)) { + Module[key] = moduleOverrides[key]; + } +} +// Free the object hierarchy contained in the overrides, this lets the GC +// reclaim data used e.g. in memoryInitializerRequest, which is a large typed array. +moduleOverrides = null; + +// Emit code to handle expected values on the Module object. This applies Module.x +// to the proper local x. This has two benefits: first, we only emit it if it is +// expected to arrive, and second, by using a local everywhere else that can be +// minified. + +if (Module['arguments']) arguments_ = Module['arguments']; +if (!Object.getOwnPropertyDescriptor(Module, 'arguments')) { + Object.defineProperty(Module, 'arguments', { + configurable: true, + get: function() { + abort('Module.arguments has been replaced with plain arguments_ (the initial value can be provided on Module, but after startup the value is only looked for on a local variable of that name)') + } + }); +} + +if (Module['thisProgram']) thisProgram = Module['thisProgram']; +if (!Object.getOwnPropertyDescriptor(Module, 'thisProgram')) { + Object.defineProperty(Module, 'thisProgram', { + configurable: true, + get: function() { + abort('Module.thisProgram has been replaced with plain thisProgram (the initial value can be provided on Module, but after startup the value is only looked for on a local variable of that name)') + } + }); +} + +if (Module['quit']) quit_ = Module['quit']; +if (!Object.getOwnPropertyDescriptor(Module, 'quit')) { + Object.defineProperty(Module, 'quit', { + configurable: true, + get: function() { + abort('Module.quit has been replaced with plain quit_ (the initial value can be provided on Module, but after startup the value is only looked for on a local variable of that name)') + } + }); +} + +// perform assertions in shell.js after we set up out() and err(), as otherwise if an assertion fails it cannot print the message +// Assertions on removed incoming Module JS APIs. +assert(typeof Module['memoryInitializerPrefixURL'] === 'undefined', 'Module.memoryInitializerPrefixURL option was removed, use Module.locateFile instead'); +assert(typeof Module['pthreadMainPrefixURL'] === 'undefined', 'Module.pthreadMainPrefixURL option was removed, use Module.locateFile instead'); +assert(typeof Module['cdInitializerPrefixURL'] === 'undefined', 'Module.cdInitializerPrefixURL option was removed, use Module.locateFile instead'); +assert(typeof Module['filePackagePrefixURL'] === 'undefined', 'Module.filePackagePrefixURL option was removed, use Module.locateFile instead'); +assert(typeof Module['read'] === 'undefined', 'Module.read option was removed (modify read_ in JS)'); +assert(typeof Module['readAsync'] === 'undefined', 'Module.readAsync option was removed (modify readAsync in JS)'); +assert(typeof Module['readBinary'] === 'undefined', 'Module.readBinary option was removed (modify readBinary in JS)'); +assert(typeof Module['setWindowTitle'] === 'undefined', 'Module.setWindowTitle option was removed (modify setWindowTitle in JS)'); +assert(typeof Module['TOTAL_MEMORY'] === 'undefined', 'Module.TOTAL_MEMORY has been renamed Module.INITIAL_MEMORY'); + +if (!Object.getOwnPropertyDescriptor(Module, 'read')) { + Object.defineProperty(Module, 'read', { + configurable: true, + get: function() { + abort('Module.read has been replaced with plain read_ (the initial value can be provided on Module, but after startup the value is only looked for on a local variable of that name)') + } + }); +} + +if (!Object.getOwnPropertyDescriptor(Module, 'readAsync')) { + Object.defineProperty(Module, 'readAsync', { + configurable: true, + get: function() { + abort('Module.readAsync has been replaced with plain readAsync (the initial value can be provided on Module, but after startup the value is only looked for on a local variable of that name)') + } + }); +} + +if (!Object.getOwnPropertyDescriptor(Module, 'readBinary')) { + Object.defineProperty(Module, 'readBinary', { + configurable: true, + get: function() { + abort('Module.readBinary has been replaced with plain readBinary (the initial value can be provided on Module, but after startup the value is only looked for on a local variable of that name)') + } + }); +} + +if (!Object.getOwnPropertyDescriptor(Module, 'setWindowTitle')) { + Object.defineProperty(Module, 'setWindowTitle', { + configurable: true, + get: function() { + abort('Module.setWindowTitle has been replaced with plain setWindowTitle (the initial value can be provided on Module, but after startup the value is only looked for on a local variable of that name)') + } + }); +} +var IDBFS = 'IDBFS is no longer included by default; build with -lidbfs.js'; +var PROXYFS = 'PROXYFS is no longer included by default; build with -lproxyfs.js'; +var WORKERFS = 'WORKERFS is no longer included by default; build with -lworkerfs.js'; +var NODEFS = 'NODEFS is no longer included by default; build with -lnodefs.js'; + + + + +var STACK_ALIGN = 16; + +function alignMemory(size, factor) { + if (!factor) factor = STACK_ALIGN; // stack alignment (16-byte) by default + return Math.ceil(size / factor) * factor; +} + +function getNativeTypeSize(type) { + switch (type) { + case 'i1': case 'i8': return 1; + case 'i16': return 2; + case 'i32': return 4; + case 'i64': return 8; + case 'float': return 4; + case 'double': return 8; + default: { + if (type[type.length-1] === '*') { + return 4; // A pointer + } else if (type[0] === 'i') { + var bits = Number(type.substr(1)); + assert(bits % 8 === 0, 'getNativeTypeSize invalid bits ' + bits + ', type ' + type); + return bits / 8; + } else { + return 0; + } + } + } +} + +function warnOnce(text) { + if (!warnOnce.shown) warnOnce.shown = {}; + if (!warnOnce.shown[text]) { + warnOnce.shown[text] = 1; + err(text); + } +} + +// include: runtime_functions.js + + +// Wraps a JS function as a wasm function with a given signature. +function convertJsFunctionToWasm(func, sig) { + + // If the type reflection proposal is available, use the new + // "WebAssembly.Function" constructor. + // Otherwise, construct a minimal wasm module importing the JS function and + // re-exporting it. + if (typeof WebAssembly.Function === "function") { + var typeNames = { + 'i': 'i32', + 'j': 'i64', + 'f': 'f32', + 'd': 'f64' + }; + var type = { + parameters: [], + results: sig[0] == 'v' ? [] : [typeNames[sig[0]]] + }; + for (var i = 1; i < sig.length; ++i) { + type.parameters.push(typeNames[sig[i]]); + } + return new WebAssembly.Function(type, func); + } + + // The module is static, with the exception of the type section, which is + // generated based on the signature passed in. + var typeSection = [ + 0x01, // id: section, + 0x00, // length: 0 (placeholder) + 0x01, // count: 1 + 0x60, // form: func + ]; + var sigRet = sig.slice(0, 1); + var sigParam = sig.slice(1); + var typeCodes = { + 'i': 0x7f, // i32 + 'j': 0x7e, // i64 + 'f': 0x7d, // f32 + 'd': 0x7c, // f64 + }; + + // Parameters, length + signatures + typeSection.push(sigParam.length); + for (var i = 0; i < sigParam.length; ++i) { + typeSection.push(typeCodes[sigParam[i]]); + } + + // Return values, length + signatures + // With no multi-return in MVP, either 0 (void) or 1 (anything else) + if (sigRet == 'v') { + typeSection.push(0x00); + } else { + typeSection = typeSection.concat([0x01, typeCodes[sigRet]]); + } + + // Write the overall length of the type section back into the section header + // (excepting the 2 bytes for the section id and length) + typeSection[1] = typeSection.length - 2; + + // Rest of the module is static + var bytes = new Uint8Array([ + 0x00, 0x61, 0x73, 0x6d, // magic ("\0asm") + 0x01, 0x00, 0x00, 0x00, // version: 1 + ].concat(typeSection, [ + 0x02, 0x07, // import section + // (import "e" "f" (func 0 (type 0))) + 0x01, 0x01, 0x65, 0x01, 0x66, 0x00, 0x00, + 0x07, 0x05, // export section + // (export "f" (func 0 (type 0))) + 0x01, 0x01, 0x66, 0x00, 0x00, + ])); + + // We can compile this wasm module synchronously because it is very small. + // This accepts an import (at "e.f"), that it reroutes to an export (at "f") + var module = new WebAssembly.Module(bytes); + var instance = new WebAssembly.Instance(module, { + 'e': { + 'f': func + } + }); + var wrappedFunc = instance.exports['f']; + return wrappedFunc; +} + +var freeTableIndexes = []; + +// Weak map of functions in the table to their indexes, created on first use. +var functionsInTableMap; + +function getEmptyTableSlot() { + // Reuse a free index if there is one, otherwise grow. + if (freeTableIndexes.length) { + return freeTableIndexes.pop(); + } + // Grow the table + try { + wasmTable.grow(1); + } catch (err) { + if (!(err instanceof RangeError)) { + throw err; + } + throw 'Unable to grow wasm table. Set ALLOW_TABLE_GROWTH.'; + } + return wasmTable.length - 1; +} + +// Add a wasm function to the table. +function addFunctionWasm(func, sig) { + // Check if the function is already in the table, to ensure each function + // gets a unique index. First, create the map if this is the first use. + if (!functionsInTableMap) { + functionsInTableMap = new WeakMap(); + for (var i = 0; i < wasmTable.length; i++) { + var item = wasmTable.get(i); + // Ignore null values. + if (item) { + functionsInTableMap.set(item, i); + } + } + } + if (functionsInTableMap.has(func)) { + return functionsInTableMap.get(func); + } + + // It's not in the table, add it now. + + var ret = getEmptyTableSlot(); + + // Set the new value. + try { + // Attempting to call this with JS function will cause of table.set() to fail + wasmTable.set(ret, func); + } catch (err) { + if (!(err instanceof TypeError)) { + throw err; + } + assert(typeof sig !== 'undefined', 'Missing signature argument to addFunction: ' + func); + var wrapped = convertJsFunctionToWasm(func, sig); + wasmTable.set(ret, wrapped); + } + + functionsInTableMap.set(func, ret); + + return ret; +} + +function removeFunction(index) { + functionsInTableMap.delete(wasmTable.get(index)); + freeTableIndexes.push(index); +} + +// 'sig' parameter is required for the llvm backend but only when func is not +// already a WebAssembly function. +function addFunction(func, sig) { + assert(typeof func !== 'undefined'); + + return addFunctionWasm(func, sig); +} + +// end include: runtime_functions.js +// include: runtime_debug.js + + +// end include: runtime_debug.js +function makeBigInt(low, high, unsigned) { + return unsigned ? ((+((low>>>0)))+((+((high>>>0)))*4294967296.0)) : ((+((low>>>0)))+((+((high|0)))*4294967296.0)); +} + +var tempRet0 = 0; + +var setTempRet0 = function(value) { + tempRet0 = value; +}; + +var getTempRet0 = function() { + return tempRet0; +}; + +function getCompilerSetting(name) { + throw 'You must build with -s RETAIN_COMPILER_SETTINGS=1 for getCompilerSetting or emscripten_get_compiler_setting to work'; +} + + + +// === Preamble library stuff === + +// Documentation for the public APIs defined in this file must be updated in: +// site/source/docs/api_reference/preamble.js.rst +// A prebuilt local version of the documentation is available at: +// site/build/text/docs/api_reference/preamble.js.txt +// You can also build docs locally as HTML or other formats in site/ +// An online HTML version (which may be of a different version of Emscripten) +// is up at http://kripken.github.io/emscripten-site/docs/api_reference/preamble.js.html + +var wasmBinary; +if (Module['wasmBinary']) wasmBinary = Module['wasmBinary']; +if (!Object.getOwnPropertyDescriptor(Module, 'wasmBinary')) { + Object.defineProperty(Module, 'wasmBinary', { + configurable: true, + get: function() { + abort('Module.wasmBinary has been replaced with plain wasmBinary (the initial value can be provided on Module, but after startup the value is only looked for on a local variable of that name)') + } + }); +} +var noExitRuntime = Module['noExitRuntime'] || true; +if (!Object.getOwnPropertyDescriptor(Module, 'noExitRuntime')) { + Object.defineProperty(Module, 'noExitRuntime', { + configurable: true, + get: function() { + abort('Module.noExitRuntime has been replaced with plain noExitRuntime (the initial value can be provided on Module, but after startup the value is only looked for on a local variable of that name)') + } + }); +} + +if (typeof WebAssembly !== 'object') { + abort('no native wasm support detected'); +} + +// include: runtime_safe_heap.js + + +// In MINIMAL_RUNTIME, setValue() and getValue() are only available when building with safe heap enabled, for heap safety checking. +// In traditional runtime, setValue() and getValue() are always available (although their use is highly discouraged due to perf penalties) + +/** @param {number} ptr + @param {number} value + @param {string} type + @param {number|boolean=} noSafe */ +function setValue(ptr, value, type, noSafe) { + type = type || 'i8'; + if (type.charAt(type.length-1) === '*') type = 'i32'; // pointers are 32-bit + switch (type) { + case 'i1': HEAP8[((ptr)>>0)] = value; break; + case 'i8': HEAP8[((ptr)>>0)] = value; break; + case 'i16': HEAP16[((ptr)>>1)] = value; break; + case 'i32': HEAP32[((ptr)>>2)] = value; break; + case 'i64': (tempI64 = [value>>>0,(tempDouble=value,(+(Math.abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? ((Math.min((+(Math.floor((tempDouble)/4294967296.0))), 4294967295.0))|0)>>>0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>0) : 0)],HEAP32[((ptr)>>2)] = tempI64[0],HEAP32[(((ptr)+(4))>>2)] = tempI64[1]); break; + case 'float': HEAPF32[((ptr)>>2)] = value; break; + case 'double': HEAPF64[((ptr)>>3)] = value; break; + default: abort('invalid type for setValue: ' + type); + } +} + +/** @param {number} ptr + @param {string} type + @param {number|boolean=} noSafe */ +function getValue(ptr, type, noSafe) { + type = type || 'i8'; + if (type.charAt(type.length-1) === '*') type = 'i32'; // pointers are 32-bit + switch (type) { + case 'i1': return HEAP8[((ptr)>>0)]; + case 'i8': return HEAP8[((ptr)>>0)]; + case 'i16': return HEAP16[((ptr)>>1)]; + case 'i32': return HEAP32[((ptr)>>2)]; + case 'i64': return HEAP32[((ptr)>>2)]; + case 'float': return HEAPF32[((ptr)>>2)]; + case 'double': return HEAPF64[((ptr)>>3)]; + default: abort('invalid type for getValue: ' + type); + } + return null; +} + +// end include: runtime_safe_heap.js +// Wasm globals + +var wasmMemory; + +//======================================== +// Runtime essentials +//======================================== + +// whether we are quitting the application. no code should run after this. +// set in exit() and abort() +var ABORT = false; + +// set by exit() and abort(). Passed to 'onExit' handler. +// NOTE: This is also used as the process return code code in shell environments +// but only when noExitRuntime is false. +var EXITSTATUS; + +/** @type {function(*, string=)} */ +function assert(condition, text) { + if (!condition) { + abort('Assertion failed: ' + text); + } +} + +// Returns the C function with a specified identifier (for C++, you need to do manual name mangling) +function getCFunc(ident) { + var func = Module['_' + ident]; // closure exported function + assert(func, 'Cannot call unknown function ' + ident + ', make sure it is exported'); + return func; +} + +// C calling interface. +/** @param {string|null=} returnType + @param {Array=} argTypes + @param {Arguments|Array=} args + @param {Object=} opts */ +function ccall(ident, returnType, argTypes, args, opts) { + // For fast lookup of conversion functions + var toC = { + 'string': function(str) { + var ret = 0; + if (str !== null && str !== undefined && str !== 0) { // null string + // at most 4 bytes per UTF-8 code point, +1 for the trailing '\0' + var len = (str.length << 2) + 1; + ret = stackAlloc(len); + stringToUTF8(str, ret, len); + } + return ret; + }, + 'array': function(arr) { + var ret = stackAlloc(arr.length); + writeArrayToMemory(arr, ret); + return ret; + } + }; + + function convertReturnValue(ret) { + if (returnType === 'string') return UTF8ToString(ret); + if (returnType === 'boolean') return Boolean(ret); + return ret; + } + + var func = getCFunc(ident); + var cArgs = []; + var stack = 0; + assert(returnType !== 'array', 'Return type should not be "array".'); + if (args) { + for (var i = 0; i < args.length; i++) { + var converter = toC[argTypes[i]]; + if (converter) { + if (stack === 0) stack = stackSave(); + cArgs[i] = converter(args[i]); + } else { + cArgs[i] = args[i]; + } + } + } + var ret = func.apply(null, cArgs); + + ret = convertReturnValue(ret); + if (stack !== 0) stackRestore(stack); + return ret; +} + +/** @param {string=} returnType + @param {Array=} argTypes + @param {Object=} opts */ +function cwrap(ident, returnType, argTypes, opts) { + return function() { + return ccall(ident, returnType, argTypes, arguments, opts); + } +} + +// We used to include malloc/free by default in the past. Show a helpful error in +// builds with assertions. + +var ALLOC_NORMAL = 0; // Tries to use _malloc() +var ALLOC_STACK = 1; // Lives for the duration of the current function call + +// allocate(): This is for internal use. You can use it yourself as well, but the interface +// is a little tricky (see docs right below). The reason is that it is optimized +// for multiple syntaxes to save space in generated code. So you should +// normally not use allocate(), and instead allocate memory using _malloc(), +// initialize it with setValue(), and so forth. +// @slab: An array of data. +// @allocator: How to allocate memory, see ALLOC_* +/** @type {function((Uint8Array|Array), number)} */ +function allocate(slab, allocator) { + var ret; + assert(typeof allocator === 'number', 'allocate no longer takes a type argument') + assert(typeof slab !== 'number', 'allocate no longer takes a number as arg0') + + if (allocator == ALLOC_STACK) { + ret = stackAlloc(slab.length); + } else { + ret = _malloc(slab.length); + } + + if (slab.subarray || slab.slice) { + HEAPU8.set(/** @type {!Uint8Array} */(slab), ret); + } else { + HEAPU8.set(new Uint8Array(slab), ret); + } + return ret; +} + +// include: runtime_strings.js + + +// runtime_strings.js: Strings related runtime functions that are part of both MINIMAL_RUNTIME and regular runtime. + +// Given a pointer 'ptr' to a null-terminated UTF8-encoded string in the given array that contains uint8 values, returns +// a copy of that string as a Javascript String object. + +var UTF8Decoder = typeof TextDecoder !== 'undefined' ? new TextDecoder('utf8') : undefined; + +/** + * @param {number} idx + * @param {number=} maxBytesToRead + * @return {string} + */ +function UTF8ArrayToString(heap, idx, maxBytesToRead) { + var endIdx = idx + maxBytesToRead; + var endPtr = idx; + // TextDecoder needs to know the byte length in advance, it doesn't stop on null terminator by itself. + // Also, use the length info to avoid running tiny strings through TextDecoder, since .subarray() allocates garbage. + // (As a tiny code save trick, compare endPtr against endIdx using a negation, so that undefined means Infinity) + while (heap[endPtr] && !(endPtr >= endIdx)) ++endPtr; + + if (endPtr - idx > 16 && heap.subarray && UTF8Decoder) { + return UTF8Decoder.decode(heap.subarray(idx, endPtr)); + } else { + var str = ''; + // If building with TextDecoder, we have already computed the string length above, so test loop end condition against that + while (idx < endPtr) { + // For UTF8 byte structure, see: + // http://en.wikipedia.org/wiki/UTF-8#Description + // https://www.ietf.org/rfc/rfc2279.txt + // https://tools.ietf.org/html/rfc3629 + var u0 = heap[idx++]; + if (!(u0 & 0x80)) { str += String.fromCharCode(u0); continue; } + var u1 = heap[idx++] & 63; + if ((u0 & 0xE0) == 0xC0) { str += String.fromCharCode(((u0 & 31) << 6) | u1); continue; } + var u2 = heap[idx++] & 63; + if ((u0 & 0xF0) == 0xE0) { + u0 = ((u0 & 15) << 12) | (u1 << 6) | u2; + } else { + if ((u0 & 0xF8) != 0xF0) warnOnce('Invalid UTF-8 leading byte 0x' + u0.toString(16) + ' encountered when deserializing a UTF-8 string in wasm memory to a JS string!'); + u0 = ((u0 & 7) << 18) | (u1 << 12) | (u2 << 6) | (heap[idx++] & 63); + } + + if (u0 < 0x10000) { + str += String.fromCharCode(u0); + } else { + var ch = u0 - 0x10000; + str += String.fromCharCode(0xD800 | (ch >> 10), 0xDC00 | (ch & 0x3FF)); + } + } + } + return str; +} + +// Given a pointer 'ptr' to a null-terminated UTF8-encoded string in the emscripten HEAP, returns a +// copy of that string as a Javascript String object. +// maxBytesToRead: an optional length that specifies the maximum number of bytes to read. You can omit +// this parameter to scan the string until the first \0 byte. If maxBytesToRead is +// passed, and the string at [ptr, ptr+maxBytesToReadr[ contains a null byte in the +// middle, then the string will cut short at that byte index (i.e. maxBytesToRead will +// not produce a string of exact length [ptr, ptr+maxBytesToRead[) +// N.B. mixing frequent uses of UTF8ToString() with and without maxBytesToRead may +// throw JS JIT optimizations off, so it is worth to consider consistently using one +// style or the other. +/** + * @param {number} ptr + * @param {number=} maxBytesToRead + * @return {string} + */ +function UTF8ToString(ptr, maxBytesToRead) { + return ptr ? UTF8ArrayToString(HEAPU8, ptr, maxBytesToRead) : ''; +} + +// Copies the given Javascript String object 'str' to the given byte array at address 'outIdx', +// encoded in UTF8 form and null-terminated. The copy will require at most str.length*4+1 bytes of space in the HEAP. +// Use the function lengthBytesUTF8 to compute the exact number of bytes (excluding null terminator) that this function will write. +// Parameters: +// str: the Javascript string to copy. +// heap: the array to copy to. Each index in this array is assumed to be one 8-byte element. +// outIdx: The starting offset in the array to begin the copying. +// maxBytesToWrite: The maximum number of bytes this function can write to the array. +// This count should include the null terminator, +// i.e. if maxBytesToWrite=1, only the null terminator will be written and nothing else. +// maxBytesToWrite=0 does not write any bytes to the output, not even the null terminator. +// Returns the number of bytes written, EXCLUDING the null terminator. + +function stringToUTF8Array(str, heap, outIdx, maxBytesToWrite) { + if (!(maxBytesToWrite > 0)) // Parameter maxBytesToWrite is not optional. Negative values, 0, null, undefined and false each don't write out any bytes. + return 0; + + var startIdx = outIdx; + var endIdx = outIdx + maxBytesToWrite - 1; // -1 for string null terminator. + for (var i = 0; i < str.length; ++i) { + // Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code unit, not a Unicode code point of the character! So decode UTF16->UTF32->UTF8. + // See http://unicode.org/faq/utf_bom.html#utf16-3 + // For UTF8 byte structure, see http://en.wikipedia.org/wiki/UTF-8#Description and https://www.ietf.org/rfc/rfc2279.txt and https://tools.ietf.org/html/rfc3629 + var u = str.charCodeAt(i); // possibly a lead surrogate + if (u >= 0xD800 && u <= 0xDFFF) { + var u1 = str.charCodeAt(++i); + u = 0x10000 + ((u & 0x3FF) << 10) | (u1 & 0x3FF); + } + if (u <= 0x7F) { + if (outIdx >= endIdx) break; + heap[outIdx++] = u; + } else if (u <= 0x7FF) { + if (outIdx + 1 >= endIdx) break; + heap[outIdx++] = 0xC0 | (u >> 6); + heap[outIdx++] = 0x80 | (u & 63); + } else if (u <= 0xFFFF) { + if (outIdx + 2 >= endIdx) break; + heap[outIdx++] = 0xE0 | (u >> 12); + heap[outIdx++] = 0x80 | ((u >> 6) & 63); + heap[outIdx++] = 0x80 | (u & 63); + } else { + if (outIdx + 3 >= endIdx) break; + if (u >= 0x200000) warnOnce('Invalid Unicode code point 0x' + u.toString(16) + ' encountered when serializing a JS string to a UTF-8 string in wasm memory! (Valid unicode code points should be in range 0-0x1FFFFF).'); + heap[outIdx++] = 0xF0 | (u >> 18); + heap[outIdx++] = 0x80 | ((u >> 12) & 63); + heap[outIdx++] = 0x80 | ((u >> 6) & 63); + heap[outIdx++] = 0x80 | (u & 63); + } + } + // Null-terminate the pointer to the buffer. + heap[outIdx] = 0; + return outIdx - startIdx; +} + +// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr', +// null-terminated and encoded in UTF8 form. The copy will require at most str.length*4+1 bytes of space in the HEAP. +// Use the function lengthBytesUTF8 to compute the exact number of bytes (excluding null terminator) that this function will write. +// Returns the number of bytes written, EXCLUDING the null terminator. + +function stringToUTF8(str, outPtr, maxBytesToWrite) { + assert(typeof maxBytesToWrite == 'number', 'stringToUTF8(str, outPtr, maxBytesToWrite) is missing the third parameter that specifies the length of the output buffer!'); + return stringToUTF8Array(str, HEAPU8,outPtr, maxBytesToWrite); +} + +// Returns the number of bytes the given Javascript string takes if encoded as a UTF8 byte array, EXCLUDING the null terminator byte. +function lengthBytesUTF8(str) { + var len = 0; + for (var i = 0; i < str.length; ++i) { + // Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code unit, not a Unicode code point of the character! So decode UTF16->UTF32->UTF8. + // See http://unicode.org/faq/utf_bom.html#utf16-3 + var u = str.charCodeAt(i); // possibly a lead surrogate + if (u >= 0xD800 && u <= 0xDFFF) u = 0x10000 + ((u & 0x3FF) << 10) | (str.charCodeAt(++i) & 0x3FF); + if (u <= 0x7F) ++len; + else if (u <= 0x7FF) len += 2; + else if (u <= 0xFFFF) len += 3; + else len += 4; + } + return len; +} + +// end include: runtime_strings.js +// include: runtime_strings_extra.js + + +// runtime_strings_extra.js: Strings related runtime functions that are available only in regular runtime. + +// Given a pointer 'ptr' to a null-terminated ASCII-encoded string in the emscripten HEAP, returns +// a copy of that string as a Javascript String object. + +function AsciiToString(ptr) { + var str = ''; + while (1) { + var ch = HEAPU8[((ptr++)>>0)]; + if (!ch) return str; + str += String.fromCharCode(ch); + } +} + +// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr', +// null-terminated and encoded in ASCII form. The copy will require at most str.length+1 bytes of space in the HEAP. + +function stringToAscii(str, outPtr) { + return writeAsciiToMemory(str, outPtr, false); +} + +// Given a pointer 'ptr' to a null-terminated UTF16LE-encoded string in the emscripten HEAP, returns +// a copy of that string as a Javascript String object. + +var UTF16Decoder = typeof TextDecoder !== 'undefined' ? new TextDecoder('utf-16le') : undefined; + +function UTF16ToString(ptr, maxBytesToRead) { + assert(ptr % 2 == 0, 'Pointer passed to UTF16ToString must be aligned to two bytes!'); + var endPtr = ptr; + // TextDecoder needs to know the byte length in advance, it doesn't stop on null terminator by itself. + // Also, use the length info to avoid running tiny strings through TextDecoder, since .subarray() allocates garbage. + var idx = endPtr >> 1; + var maxIdx = idx + maxBytesToRead / 2; + // If maxBytesToRead is not passed explicitly, it will be undefined, and this + // will always evaluate to true. This saves on code size. + while (!(idx >= maxIdx) && HEAPU16[idx]) ++idx; + endPtr = idx << 1; + + if (endPtr - ptr > 32 && UTF16Decoder) { + return UTF16Decoder.decode(HEAPU8.subarray(ptr, endPtr)); + } else { + var str = ''; + + // If maxBytesToRead is not passed explicitly, it will be undefined, and the for-loop's condition + // will always evaluate to true. The loop is then terminated on the first null char. + for (var i = 0; !(i >= maxBytesToRead / 2); ++i) { + var codeUnit = HEAP16[(((ptr)+(i*2))>>1)]; + if (codeUnit == 0) break; + // fromCharCode constructs a character from a UTF-16 code unit, so we can pass the UTF16 string right through. + str += String.fromCharCode(codeUnit); + } + + return str; + } +} + +// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr', +// null-terminated and encoded in UTF16 form. The copy will require at most str.length*4+2 bytes of space in the HEAP. +// Use the function lengthBytesUTF16() to compute the exact number of bytes (excluding null terminator) that this function will write. +// Parameters: +// str: the Javascript string to copy. +// outPtr: Byte address in Emscripten HEAP where to write the string to. +// maxBytesToWrite: The maximum number of bytes this function can write to the array. This count should include the null +// terminator, i.e. if maxBytesToWrite=2, only the null terminator will be written and nothing else. +// maxBytesToWrite<2 does not write any bytes to the output, not even the null terminator. +// Returns the number of bytes written, EXCLUDING the null terminator. + +function stringToUTF16(str, outPtr, maxBytesToWrite) { + assert(outPtr % 2 == 0, 'Pointer passed to stringToUTF16 must be aligned to two bytes!'); + assert(typeof maxBytesToWrite == 'number', 'stringToUTF16(str, outPtr, maxBytesToWrite) is missing the third parameter that specifies the length of the output buffer!'); + // Backwards compatibility: if max bytes is not specified, assume unsafe unbounded write is allowed. + if (maxBytesToWrite === undefined) { + maxBytesToWrite = 0x7FFFFFFF; + } + if (maxBytesToWrite < 2) return 0; + maxBytesToWrite -= 2; // Null terminator. + var startPtr = outPtr; + var numCharsToWrite = (maxBytesToWrite < str.length*2) ? (maxBytesToWrite / 2) : str.length; + for (var i = 0; i < numCharsToWrite; ++i) { + // charCodeAt returns a UTF-16 encoded code unit, so it can be directly written to the HEAP. + var codeUnit = str.charCodeAt(i); // possibly a lead surrogate + HEAP16[((outPtr)>>1)] = codeUnit; + outPtr += 2; + } + // Null-terminate the pointer to the HEAP. + HEAP16[((outPtr)>>1)] = 0; + return outPtr - startPtr; +} + +// Returns the number of bytes the given Javascript string takes if encoded as a UTF16 byte array, EXCLUDING the null terminator byte. + +function lengthBytesUTF16(str) { + return str.length*2; +} + +function UTF32ToString(ptr, maxBytesToRead) { + assert(ptr % 4 == 0, 'Pointer passed to UTF32ToString must be aligned to four bytes!'); + var i = 0; + + var str = ''; + // If maxBytesToRead is not passed explicitly, it will be undefined, and this + // will always evaluate to true. This saves on code size. + while (!(i >= maxBytesToRead / 4)) { + var utf32 = HEAP32[(((ptr)+(i*4))>>2)]; + if (utf32 == 0) break; + ++i; + // Gotcha: fromCharCode constructs a character from a UTF-16 encoded code (pair), not from a Unicode code point! So encode the code point to UTF-16 for constructing. + // See http://unicode.org/faq/utf_bom.html#utf16-3 + if (utf32 >= 0x10000) { + var ch = utf32 - 0x10000; + str += String.fromCharCode(0xD800 | (ch >> 10), 0xDC00 | (ch & 0x3FF)); + } else { + str += String.fromCharCode(utf32); + } + } + return str; +} + +// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr', +// null-terminated and encoded in UTF32 form. The copy will require at most str.length*4+4 bytes of space in the HEAP. +// Use the function lengthBytesUTF32() to compute the exact number of bytes (excluding null terminator) that this function will write. +// Parameters: +// str: the Javascript string to copy. +// outPtr: Byte address in Emscripten HEAP where to write the string to. +// maxBytesToWrite: The maximum number of bytes this function can write to the array. This count should include the null +// terminator, i.e. if maxBytesToWrite=4, only the null terminator will be written and nothing else. +// maxBytesToWrite<4 does not write any bytes to the output, not even the null terminator. +// Returns the number of bytes written, EXCLUDING the null terminator. + +function stringToUTF32(str, outPtr, maxBytesToWrite) { + assert(outPtr % 4 == 0, 'Pointer passed to stringToUTF32 must be aligned to four bytes!'); + assert(typeof maxBytesToWrite == 'number', 'stringToUTF32(str, outPtr, maxBytesToWrite) is missing the third parameter that specifies the length of the output buffer!'); + // Backwards compatibility: if max bytes is not specified, assume unsafe unbounded write is allowed. + if (maxBytesToWrite === undefined) { + maxBytesToWrite = 0x7FFFFFFF; + } + if (maxBytesToWrite < 4) return 0; + var startPtr = outPtr; + var endPtr = startPtr + maxBytesToWrite - 4; + for (var i = 0; i < str.length; ++i) { + // Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code unit, not a Unicode code point of the character! We must decode the string to UTF-32 to the heap. + // See http://unicode.org/faq/utf_bom.html#utf16-3 + var codeUnit = str.charCodeAt(i); // possibly a lead surrogate + if (codeUnit >= 0xD800 && codeUnit <= 0xDFFF) { + var trailSurrogate = str.charCodeAt(++i); + codeUnit = 0x10000 + ((codeUnit & 0x3FF) << 10) | (trailSurrogate & 0x3FF); + } + HEAP32[((outPtr)>>2)] = codeUnit; + outPtr += 4; + if (outPtr + 4 > endPtr) break; + } + // Null-terminate the pointer to the HEAP. + HEAP32[((outPtr)>>2)] = 0; + return outPtr - startPtr; +} + +// Returns the number of bytes the given Javascript string takes if encoded as a UTF16 byte array, EXCLUDING the null terminator byte. + +function lengthBytesUTF32(str) { + var len = 0; + for (var i = 0; i < str.length; ++i) { + // Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code unit, not a Unicode code point of the character! We must decode the string to UTF-32 to the heap. + // See http://unicode.org/faq/utf_bom.html#utf16-3 + var codeUnit = str.charCodeAt(i); + if (codeUnit >= 0xD800 && codeUnit <= 0xDFFF) ++i; // possibly a lead surrogate, so skip over the tail surrogate. + len += 4; + } + + return len; +} + +// Allocate heap space for a JS string, and write it there. +// It is the responsibility of the caller to free() that memory. +function allocateUTF8(str) { + var size = lengthBytesUTF8(str) + 1; + var ret = _malloc(size); + if (ret) stringToUTF8Array(str, HEAP8, ret, size); + return ret; +} + +// Allocate stack space for a JS string, and write it there. +function allocateUTF8OnStack(str) { + var size = lengthBytesUTF8(str) + 1; + var ret = stackAlloc(size); + stringToUTF8Array(str, HEAP8, ret, size); + return ret; +} + +// Deprecated: This function should not be called because it is unsafe and does not provide +// a maximum length limit of how many bytes it is allowed to write. Prefer calling the +// function stringToUTF8Array() instead, which takes in a maximum length that can be used +// to be secure from out of bounds writes. +/** @deprecated + @param {boolean=} dontAddNull */ +function writeStringToMemory(string, buffer, dontAddNull) { + warnOnce('writeStringToMemory is deprecated and should not be called! Use stringToUTF8() instead!'); + + var /** @type {number} */ lastChar, /** @type {number} */ end; + if (dontAddNull) { + // stringToUTF8Array always appends null. If we don't want to do that, remember the + // character that existed at the location where the null will be placed, and restore + // that after the write (below). + end = buffer + lengthBytesUTF8(string); + lastChar = HEAP8[end]; + } + stringToUTF8(string, buffer, Infinity); + if (dontAddNull) HEAP8[end] = lastChar; // Restore the value under the null character. +} + +function writeArrayToMemory(array, buffer) { + assert(array.length >= 0, 'writeArrayToMemory array must have a length (should be an array or typed array)') + HEAP8.set(array, buffer); +} + +/** @param {boolean=} dontAddNull */ +function writeAsciiToMemory(str, buffer, dontAddNull) { + for (var i = 0; i < str.length; ++i) { + assert(str.charCodeAt(i) === str.charCodeAt(i)&0xff); + HEAP8[((buffer++)>>0)] = str.charCodeAt(i); + } + // Null-terminate the pointer to the HEAP. + if (!dontAddNull) HEAP8[((buffer)>>0)] = 0; +} + +// end include: runtime_strings_extra.js +// Memory management + +function alignUp(x, multiple) { + if (x % multiple > 0) { + x += multiple - (x % multiple); + } + return x; +} + +var HEAP, +/** @type {ArrayBuffer} */ + buffer, +/** @type {Int8Array} */ + HEAP8, +/** @type {Uint8Array} */ + HEAPU8, +/** @type {Int16Array} */ + HEAP16, +/** @type {Uint16Array} */ + HEAPU16, +/** @type {Int32Array} */ + HEAP32, +/** @type {Uint32Array} */ + HEAPU32, +/** @type {Float32Array} */ + HEAPF32, +/** @type {Float64Array} */ + HEAPF64; + +function updateGlobalBufferAndViews(buf) { + buffer = buf; + Module['HEAP8'] = HEAP8 = new Int8Array(buf); + Module['HEAP16'] = HEAP16 = new Int16Array(buf); + Module['HEAP32'] = HEAP32 = new Int32Array(buf); + Module['HEAPU8'] = HEAPU8 = new Uint8Array(buf); + Module['HEAPU16'] = HEAPU16 = new Uint16Array(buf); + Module['HEAPU32'] = HEAPU32 = new Uint32Array(buf); + Module['HEAPF32'] = HEAPF32 = new Float32Array(buf); + Module['HEAPF64'] = HEAPF64 = new Float64Array(buf); +} + +var TOTAL_STACK = 5242880; +if (Module['TOTAL_STACK']) assert(TOTAL_STACK === Module['TOTAL_STACK'], 'the stack size can no longer be determined at runtime') + +var INITIAL_MEMORY = Module['INITIAL_MEMORY'] || 16777216; +if (!Object.getOwnPropertyDescriptor(Module, 'INITIAL_MEMORY')) { + Object.defineProperty(Module, 'INITIAL_MEMORY', { + configurable: true, + get: function() { + abort('Module.INITIAL_MEMORY has been replaced with plain INITIAL_MEMORY (the initial value can be provided on Module, but after startup the value is only looked for on a local variable of that name)') + } + }); +} + +assert(INITIAL_MEMORY >= TOTAL_STACK, 'INITIAL_MEMORY should be larger than TOTAL_STACK, was ' + INITIAL_MEMORY + '! (TOTAL_STACK=' + TOTAL_STACK + ')'); + +// check for full engine support (use string 'subarray' to avoid closure compiler confusion) +assert(typeof Int32Array !== 'undefined' && typeof Float64Array !== 'undefined' && Int32Array.prototype.subarray !== undefined && Int32Array.prototype.set !== undefined, + 'JS engine does not provide full typed array support'); + +// If memory is defined in wasm, the user can't provide it. +assert(!Module['wasmMemory'], 'Use of `wasmMemory` detected. Use -s IMPORTED_MEMORY to define wasmMemory externally'); +assert(INITIAL_MEMORY == 16777216, 'Detected runtime INITIAL_MEMORY setting. Use -s IMPORTED_MEMORY to define wasmMemory dynamically'); + +// include: runtime_init_table.js +// In regular non-RELOCATABLE mode the table is exported +// from the wasm module and this will be assigned once +// the exports are available. +var wasmTable; + +// end include: runtime_init_table.js +// include: runtime_stack_check.js + + +// Initializes the stack cookie. Called at the startup of main and at the startup of each thread in pthreads mode. +function writeStackCookie() { + var max = _emscripten_stack_get_end(); + assert((max & 3) == 0); + // The stack grows downwards + HEAPU32[(max >> 2)+1] = 0x2135467; + HEAPU32[(max >> 2)+2] = 0x89BACDFE; + // Also test the global address 0 for integrity. + HEAP32[0] = 0x63736d65; /* 'emsc' */ +} + +function checkStackCookie() { + if (ABORT) return; + var max = _emscripten_stack_get_end(); + var cookie1 = HEAPU32[(max >> 2)+1]; + var cookie2 = HEAPU32[(max >> 2)+2]; + if (cookie1 != 0x2135467 || cookie2 != 0x89BACDFE) { + abort('Stack overflow! Stack cookie has been overwritten, expected hex dwords 0x89BACDFE and 0x2135467, but received 0x' + cookie2.toString(16) + ' ' + cookie1.toString(16)); + } + // Also test the global address 0 for integrity. + if (HEAP32[0] !== 0x63736d65 /* 'emsc' */) abort('Runtime error: The application has corrupted its heap memory area (address zero)!'); +} + +// end include: runtime_stack_check.js +// include: runtime_assertions.js + + +// Endianness check +(function() { + var h16 = new Int16Array(1); + var h8 = new Int8Array(h16.buffer); + h16[0] = 0x6373; + if (h8[0] !== 0x73 || h8[1] !== 0x63) throw 'Runtime error: expected the system to be little-endian! (Run with -s SUPPORT_BIG_ENDIAN=1 to bypass)'; +})(); + +function abortFnPtrError(ptr, sig) { + abort("Invalid function pointer " + ptr + " called with signature '" + sig + "'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this). Build with ASSERTIONS=2 for more info."); +} + +// end include: runtime_assertions.js +var __ATPRERUN__ = []; // functions called before the runtime is initialized +var __ATINIT__ = []; // functions called during startup +var __ATMAIN__ = []; // functions called when main() is to be run +var __ATEXIT__ = []; // functions called during shutdown +var __ATPOSTRUN__ = []; // functions called after the main() is called + +var runtimeInitialized = false; +var runtimeExited = false; + +function preRun() { + + if (Module['preRun']) { + if (typeof Module['preRun'] == 'function') Module['preRun'] = [Module['preRun']]; + while (Module['preRun'].length) { + addOnPreRun(Module['preRun'].shift()); + } + } + + callRuntimeCallbacks(__ATPRERUN__); +} + +function initRuntime() { + checkStackCookie(); + assert(!runtimeInitialized); + runtimeInitialized = true; + + + callRuntimeCallbacks(__ATINIT__); +} + +function preMain() { + checkStackCookie(); + + callRuntimeCallbacks(__ATMAIN__); +} + +function exitRuntime() { + checkStackCookie(); + runtimeExited = true; +} + +function postRun() { + checkStackCookie(); + + if (Module['postRun']) { + if (typeof Module['postRun'] == 'function') Module['postRun'] = [Module['postRun']]; + while (Module['postRun'].length) { + addOnPostRun(Module['postRun'].shift()); + } + } + + callRuntimeCallbacks(__ATPOSTRUN__); +} + +function addOnPreRun(cb) { + __ATPRERUN__.unshift(cb); +} + +function addOnInit(cb) { + __ATINIT__.unshift(cb); +} + +function addOnPreMain(cb) { + __ATMAIN__.unshift(cb); +} + +function addOnExit(cb) { +} + +function addOnPostRun(cb) { + __ATPOSTRUN__.unshift(cb); +} + +// include: runtime_math.js + + +// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/imul + +// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/fround + +// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/clz32 + +// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/trunc + +assert(Math.imul, 'This browser does not support Math.imul(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill'); +assert(Math.fround, 'This browser does not support Math.fround(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill'); +assert(Math.clz32, 'This browser does not support Math.clz32(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill'); +assert(Math.trunc, 'This browser does not support Math.trunc(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill'); + +// end include: runtime_math.js +// A counter of dependencies for calling run(). If we need to +// do asynchronous work before running, increment this and +// decrement it. Incrementing must happen in a place like +// Module.preRun (used by emcc to add file preloading). +// Note that you can add dependencies in preRun, even though +// it happens right before run - run will be postponed until +// the dependencies are met. +var runDependencies = 0; +var runDependencyWatcher = null; +var dependenciesFulfilled = null; // overridden to take different actions when all run dependencies are fulfilled +var runDependencyTracking = {}; + +function getUniqueRunDependency(id) { + var orig = id; + while (1) { + if (!runDependencyTracking[id]) return id; + id = orig + Math.random(); + } +} + +function addRunDependency(id) { + runDependencies++; + + if (Module['monitorRunDependencies']) { + Module['monitorRunDependencies'](runDependencies); + } + + if (id) { + assert(!runDependencyTracking[id]); + runDependencyTracking[id] = 1; + if (runDependencyWatcher === null && typeof setInterval !== 'undefined') { + // Check for missing dependencies every few seconds + runDependencyWatcher = setInterval(function() { + if (ABORT) { + clearInterval(runDependencyWatcher); + runDependencyWatcher = null; + return; + } + var shown = false; + for (var dep in runDependencyTracking) { + if (!shown) { + shown = true; + err('still waiting on run dependencies:'); + } + err('dependency: ' + dep); + } + if (shown) { + err('(end of list)'); + } + }, 10000); + } + } else { + err('warning: run dependency added without ID'); + } +} + +function removeRunDependency(id) { + runDependencies--; + + if (Module['monitorRunDependencies']) { + Module['monitorRunDependencies'](runDependencies); + } + + if (id) { + assert(runDependencyTracking[id]); + delete runDependencyTracking[id]; + } else { + err('warning: run dependency removed without ID'); + } + if (runDependencies == 0) { + if (runDependencyWatcher !== null) { + clearInterval(runDependencyWatcher); + runDependencyWatcher = null; + } + if (dependenciesFulfilled) { + var callback = dependenciesFulfilled; + dependenciesFulfilled = null; + callback(); // can add another dependenciesFulfilled + } + } +} + +Module["preloadedImages"] = {}; // maps url to image data +Module["preloadedAudios"] = {}; // maps url to audio data + +/** @param {string|number=} what */ +function abort(what) { + if (Module['onAbort']) { + Module['onAbort'](what); + } + + what += ''; + err(what); + + ABORT = true; + EXITSTATUS = 1; + + var output = 'abort(' + what + ') at ' + stackTrace(); + what = output; + + // Use a wasm runtime error, because a JS error might be seen as a foreign + // exception, which means we'd run destructors on it. We need the error to + // simply make the program stop. + var e = new WebAssembly.RuntimeError(what); + + // Throw the error whether or not MODULARIZE is set because abort is used + // in code paths apart from instantiation where an exception is expected + // to be thrown when abort is called. + throw e; +} + +// {{MEM_INITIALIZER}} + +// include: memoryprofiler.js + + +// end include: memoryprofiler.js +// show errors on likely calls to FS when it was not included +var FS = { + error: function() { + abort('Filesystem support (FS) was not included. The problem is that you are using files from JS, but files were not used from C/C++, so filesystem support was not auto-included. You can force-include filesystem support with -s FORCE_FILESYSTEM=1'); + }, + init: function() { FS.error() }, + createDataFile: function() { FS.error() }, + createPreloadedFile: function() { FS.error() }, + createLazyFile: function() { FS.error() }, + open: function() { FS.error() }, + mkdev: function() { FS.error() }, + registerDevice: function() { FS.error() }, + analyzePath: function() { FS.error() }, + loadFilesFromDB: function() { FS.error() }, + + ErrnoError: function ErrnoError() { FS.error() }, +}; +Module['FS_createDataFile'] = FS.createDataFile; +Module['FS_createPreloadedFile'] = FS.createPreloadedFile; + +// include: URIUtils.js + + +function hasPrefix(str, prefix) { + return String.prototype.startsWith ? + str.startsWith(prefix) : + str.indexOf(prefix) === 0; +} + +// Prefix of data URIs emitted by SINGLE_FILE and related options. +var dataURIPrefix = 'data:application/octet-stream;base64,'; + +// Indicates whether filename is a base64 data URI. +function isDataURI(filename) { + return hasPrefix(filename, dataURIPrefix); +} + +var fileURIPrefix = "file://"; + +// Indicates whether filename is delivered via file protocol (as opposed to http/https) +function isFileURI(filename) { + return hasPrefix(filename, fileURIPrefix); +} + +// end include: URIUtils.js +function createExportWrapper(name, fixedasm) { + return function() { + var displayName = name; + var asm = fixedasm; + if (!fixedasm) { + asm = Module['asm']; + } + assert(runtimeInitialized, 'native function `' + displayName + '` called before runtime initialization'); + assert(!runtimeExited, 'native function `' + displayName + '` called after runtime exit (use NO_EXIT_RUNTIME to keep it alive after main() exits)'); + if (!asm[name]) { + assert(asm[name], 'exported native function `' + displayName + '` not found'); + } + return asm[name].apply(null, arguments); + }; +} + +var wasmBinaryFile = 'output.wasm'; +if (!isDataURI(wasmBinaryFile)) { + wasmBinaryFile = locateFile(wasmBinaryFile); +} + +function getBinary(file) { + try { + if (file == wasmBinaryFile && wasmBinary) { + return new Uint8Array(wasmBinary); + } + if (readBinary) { + return readBinary(file); + } else { + throw "both async and sync fetching of the wasm failed"; + } + } + catch (err) { + abort(err); + } +} + +function getBinaryPromise() { + // If we don't have the binary yet, try to to load it asynchronously. + // Fetch has some additional restrictions over XHR, like it can't be used on a file:// url. + // See https://github.com/github/fetch/pull/92#issuecomment-140665932 + // Cordova or Electron apps are typically loaded from a file:// url. + // So use fetch if it is available and the url is not a file, otherwise fall back to XHR. + if (!wasmBinary && (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER)) { + if (typeof fetch === 'function' + && !isFileURI(wasmBinaryFile) + ) { + return fetch(wasmBinaryFile, { credentials: 'same-origin' }).then(function(response) { + if (!response['ok']) { + throw "failed to load wasm binary file at '" + wasmBinaryFile + "'"; + } + return response['arrayBuffer'](); + }).catch(function () { + return getBinary(wasmBinaryFile); + }); + } + else { + if (readAsync) { + // fetch is not available or url is file => try XHR (readAsync uses XHR internally) + return new Promise(function(resolve, reject) { + readAsync(wasmBinaryFile, function(response) { resolve(new Uint8Array(/** @type{!ArrayBuffer} */(response))) }, reject) + }); + } + } + } + + // Otherwise, getBinary should be able to get it synchronously + return Promise.resolve().then(function() { return getBinary(wasmBinaryFile); }); +} + +// Create the wasm instance. +// Receives the wasm imports, returns the exports. +function createWasm() { + // prepare imports + var info = { + 'env': asmLibraryArg, + 'wasi_snapshot_preview1': asmLibraryArg, + }; + // Load the wasm module and create an instance of using native support in the JS engine. + // handle a generated wasm instance, receiving its exports and + // performing other necessary setup + /** @param {WebAssembly.Module=} module*/ + function receiveInstance(instance, module) { + var exports = instance.exports; + + Module['asm'] = exports; + + wasmMemory = Module['asm']['memory']; + assert(wasmMemory, "memory not found in wasm exports"); + // This assertion doesn't hold when emscripten is run in --post-link + // mode. + // TODO(sbc): Read INITIAL_MEMORY out of the wasm file in post-link mode. + //assert(wasmMemory.buffer.byteLength === 16777216); + updateGlobalBufferAndViews(wasmMemory.buffer); + + wasmTable = Module['asm']['__indirect_function_table']; + assert(wasmTable, "table not found in wasm exports"); + + addOnInit(Module['asm']['__wasm_call_ctors']); + + removeRunDependency('wasm-instantiate'); + } + // we can't run yet (except in a pthread, where we have a custom sync instantiator) + addRunDependency('wasm-instantiate'); + + // Async compilation can be confusing when an error on the page overwrites Module + // (for example, if the order of elements is wrong, and the one defining Module is + // later), so we save Module and check it later. + var trueModule = Module; + function receiveInstantiatedSource(output) { + // 'output' is a WebAssemblyInstantiatedSource object which has both the module and instance. + // receiveInstance() will swap in the exports (to Module.asm) so they can be called + assert(Module === trueModule, 'the Module object should not be replaced during async compilation - perhaps the order of HTML elements is wrong?'); + trueModule = null; + // TODO: Due to Closure regression https://github.com/google/closure-compiler/issues/3193, the above line no longer optimizes out down to the following line. + // When the regression is fixed, can restore the above USE_PTHREADS-enabled path. + receiveInstance(output['instance']); + } + + function instantiateArrayBuffer(receiver) { + return getBinaryPromise().then(function(binary) { + var result = WebAssembly.instantiate(binary, info); + return result; + }).then(receiver, function(reason) { + err('failed to asynchronously prepare wasm: ' + reason); + + // Warn on some common problems. + if (isFileURI(wasmBinaryFile)) { + err('warning: Loading from a file URI (' + wasmBinaryFile + ') is not supported in most browsers. See https://emscripten.org/docs/getting_started/FAQ.html#how-do-i-run-a-local-webserver-for-testing-why-does-my-program-stall-in-downloading-or-preparing'); + } + abort(reason); + }); + } + + // Prefer streaming instantiation if available. + function instantiateAsync() { + if (!wasmBinary && + typeof WebAssembly.instantiateStreaming === 'function' && + !isDataURI(wasmBinaryFile) && + // Don't use streaming for file:// delivered objects in a webview, fetch them synchronously. + !isFileURI(wasmBinaryFile) && + typeof fetch === 'function') { + return fetch(wasmBinaryFile, { credentials: 'same-origin' }).then(function (response) { + var result = WebAssembly.instantiateStreaming(response, info); + return result.then(receiveInstantiatedSource, function(reason) { + // We expect the most common failure cause to be a bad MIME type for the binary, + // in which case falling back to ArrayBuffer instantiation should work. + err('wasm streaming compile failed: ' + reason); + err('falling back to ArrayBuffer instantiation'); + return instantiateArrayBuffer(receiveInstantiatedSource); + }); + }); + } else { + return instantiateArrayBuffer(receiveInstantiatedSource); + } + } + + // User shell pages can write their own Module.instantiateWasm = function(imports, successCallback) callback + // to manually instantiate the Wasm module themselves. This allows pages to run the instantiation parallel + // to any other async startup actions they are performing. + if (Module['instantiateWasm']) { + try { + var exports = Module['instantiateWasm'](info, receiveInstance); + return exports; + } catch(e) { + err('Module.instantiateWasm callback failed with error: ' + e); + return false; + } + } + + instantiateAsync(); + return {}; // no exports yet; we'll fill them in later +} + +// Globals used by JS i64 conversions (see makeSetValue) +var tempDouble; +var tempI64; + +// === Body === + +var ASM_CONSTS = { + +}; + + + + + + + function callRuntimeCallbacks(callbacks) { + while (callbacks.length > 0) { + var callback = callbacks.shift(); + if (typeof callback == 'function') { + callback(Module); // Pass the module as the first argument. + continue; + } + var func = callback.func; + if (typeof func === 'number') { + if (callback.arg === undefined) { + wasmTable.get(func)(); + } else { + wasmTable.get(func)(callback.arg); + } + } else { + func(callback.arg === undefined ? null : callback.arg); + } + } + } + + function demangle(func) { + warnOnce('warning: build with -s DEMANGLE_SUPPORT=1 to link in libcxxabi demangling'); + return func; + } + + function demangleAll(text) { + var regex = + /\b_Z[\w\d_]+/g; + return text.replace(regex, + function(x) { + var y = demangle(x); + return x === y ? x : (y + ' [' + x + ']'); + }); + } + + function jsStackTrace() { + var error = new Error(); + if (!error.stack) { + // IE10+ special cases: It does have callstack info, but it is only populated if an Error object is thrown, + // so try that as a special-case. + try { + throw new Error(); + } catch(e) { + error = e; + } + if (!error.stack) { + return '(no stack trace available)'; + } + } + return error.stack.toString(); + } + + var runtimeKeepaliveCounter=0; + function keepRuntimeAlive() { + return noExitRuntime || runtimeKeepaliveCounter > 0; + } + + function stackTrace() { + var js = jsStackTrace(); + if (Module['extraStackTrace']) js += '\n' + Module['extraStackTrace'](); + return demangleAll(js); + } + + function _abort() { + abort(); + } + + function _emscripten_memcpy_big(dest, src, num) { + HEAPU8.copyWithin(dest, src, src + num); + } + + function _emscripten_request_animation_frame_loop(cb, userData) { + function tick(timeStamp) { + if (wasmTable.get(cb)(timeStamp, userData)) { + requestAnimationFrame(tick); + } + } + return requestAnimationFrame(tick); + } + + function emscripten_realloc_buffer(size) { + try { + // round size grow request up to wasm page size (fixed 64KB per spec) + wasmMemory.grow((size - buffer.byteLength + 65535) >>> 16); // .grow() takes a delta compared to the previous size + updateGlobalBufferAndViews(wasmMemory.buffer); + return 1 /*success*/; + } catch(e) { + console.error('emscripten_realloc_buffer: Attempted to grow heap from ' + buffer.byteLength + ' bytes to ' + size + ' bytes, but got error: ' + e); + } + // implicit 0 return to save code size (caller will cast "undefined" into 0 + // anyhow) + } + function _emscripten_resize_heap(requestedSize) { + var oldSize = HEAPU8.length; + requestedSize = requestedSize >>> 0; + // With pthreads, races can happen (another thread might increase the size in between), so return a failure, and let the caller retry. + assert(requestedSize > oldSize); + + // Memory resize rules: + // 1. Always increase heap size to at least the requested size, rounded up to next page multiple. + // 2a. If MEMORY_GROWTH_LINEAR_STEP == -1, excessively resize the heap geometrically: increase the heap size according to + // MEMORY_GROWTH_GEOMETRIC_STEP factor (default +20%), + // At most overreserve by MEMORY_GROWTH_GEOMETRIC_CAP bytes (default 96MB). + // 2b. If MEMORY_GROWTH_LINEAR_STEP != -1, excessively resize the heap linearly: increase the heap size by at least MEMORY_GROWTH_LINEAR_STEP bytes. + // 3. Max size for the heap is capped at 2048MB-WASM_PAGE_SIZE, or by MAXIMUM_MEMORY, or by ASAN limit, depending on which is smallest + // 4. If we were unable to allocate as much memory, it may be due to over-eager decision to excessively reserve due to (3) above. + // Hence if an allocation fails, cut down on the amount of excess growth, in an attempt to succeed to perform a smaller allocation. + + // A limit was set for how much we can grow. We should not exceed that + // (the wasm binary specifies it, so if we tried, we'd fail anyhow). + // In CAN_ADDRESS_2GB mode, stay one Wasm page short of 4GB: while e.g. Chrome is able to allocate full 4GB Wasm memories, the size will wrap + // back to 0 bytes in Wasm side for any code that deals with heap sizes, which would require special casing all heap size related code to treat + // 0 specially. + var maxHeapSize = 2147483648; + if (requestedSize > maxHeapSize) { + err('Cannot enlarge memory, asked to go up to ' + requestedSize + ' bytes, but the limit is ' + maxHeapSize + ' bytes!'); + return false; + } + + // Loop through potential heap size increases. If we attempt a too eager reservation that fails, cut down on the + // attempted size and reserve a smaller bump instead. (max 3 times, chosen somewhat arbitrarily) + for (var cutDown = 1; cutDown <= 4; cutDown *= 2) { + var overGrownHeapSize = oldSize * (1 + 0.2 / cutDown); // ensure geometric growth + // but limit overreserving (default to capping at +96MB overgrowth at most) + overGrownHeapSize = Math.min(overGrownHeapSize, requestedSize + 100663296 ); + + var newSize = Math.min(maxHeapSize, alignUp(Math.max(requestedSize, overGrownHeapSize), 65536)); + + var replacement = emscripten_realloc_buffer(newSize); + if (replacement) { + + return true; + } + } + err('Failed to grow the heap from ' + oldSize + ' bytes to ' + newSize + ' bytes, not enough memory!'); + return false; + } + + var JSEvents={inEventHandler:0,removeAllEventListeners:function() { + for (var i = JSEvents.eventHandlers.length-1; i >= 0; --i) { + JSEvents._removeHandler(i); + } + JSEvents.eventHandlers = []; + JSEvents.deferredCalls = []; + },registerRemoveEventListeners:function() { + if (!JSEvents.removeEventListenersRegistered) { + __ATEXIT__.push(JSEvents.removeAllEventListeners); + JSEvents.removeEventListenersRegistered = true; + } + },deferredCalls:[],deferCall:function(targetFunction, precedence, argsList) { + function arraysHaveEqualContent(arrA, arrB) { + if (arrA.length != arrB.length) return false; + + for (var i in arrA) { + if (arrA[i] != arrB[i]) return false; + } + return true; + } + // Test if the given call was already queued, and if so, don't add it again. + for (var i in JSEvents.deferredCalls) { + var call = JSEvents.deferredCalls[i]; + if (call.targetFunction == targetFunction && arraysHaveEqualContent(call.argsList, argsList)) { + return; + } + } + JSEvents.deferredCalls.push({ + targetFunction: targetFunction, + precedence: precedence, + argsList: argsList + }); + + JSEvents.deferredCalls.sort(function(x,y) { return x.precedence < y.precedence; }); + },removeDeferredCalls:function(targetFunction) { + for (var i = 0; i < JSEvents.deferredCalls.length; ++i) { + if (JSEvents.deferredCalls[i].targetFunction == targetFunction) { + JSEvents.deferredCalls.splice(i, 1); + --i; + } + } + },canPerformEventHandlerRequests:function() { + return JSEvents.inEventHandler && JSEvents.currentEventHandler.allowsDeferredCalls; + },runDeferredCalls:function() { + if (!JSEvents.canPerformEventHandlerRequests()) { + return; + } + for (var i = 0; i < JSEvents.deferredCalls.length; ++i) { + var call = JSEvents.deferredCalls[i]; + JSEvents.deferredCalls.splice(i, 1); + --i; + call.targetFunction.apply(null, call.argsList); + } + },eventHandlers:[],removeAllHandlersOnTarget:function(target, eventTypeString) { + for (var i = 0; i < JSEvents.eventHandlers.length; ++i) { + if (JSEvents.eventHandlers[i].target == target && + (!eventTypeString || eventTypeString == JSEvents.eventHandlers[i].eventTypeString)) { + JSEvents._removeHandler(i--); + } + } + },_removeHandler:function(i) { + var h = JSEvents.eventHandlers[i]; + h.target.removeEventListener(h.eventTypeString, h.eventListenerFunc, h.useCapture); + JSEvents.eventHandlers.splice(i, 1); + },registerOrRemoveHandler:function(eventHandler) { + var jsEventHandler = function jsEventHandler(event) { + // Increment nesting count for the event handler. + ++JSEvents.inEventHandler; + JSEvents.currentEventHandler = eventHandler; + // Process any old deferred calls the user has placed. + JSEvents.runDeferredCalls(); + // Process the actual event, calls back to user C code handler. + eventHandler.handlerFunc(event); + // Process any new deferred calls that were placed right now from this event handler. + JSEvents.runDeferredCalls(); + // Out of event handler - restore nesting count. + --JSEvents.inEventHandler; + }; + + if (eventHandler.callbackfunc) { + eventHandler.eventListenerFunc = jsEventHandler; + eventHandler.target.addEventListener(eventHandler.eventTypeString, jsEventHandler, eventHandler.useCapture); + JSEvents.eventHandlers.push(eventHandler); + JSEvents.registerRemoveEventListeners(); + } else { + for (var i = 0; i < JSEvents.eventHandlers.length; ++i) { + if (JSEvents.eventHandlers[i].target == eventHandler.target + && JSEvents.eventHandlers[i].eventTypeString == eventHandler.eventTypeString) { + JSEvents._removeHandler(i--); + } + } + } + },getNodeNameForTarget:function(target) { + if (!target) return ''; + if (target == window) return '#window'; + if (target == screen) return '#screen'; + return (target && target.nodeName) ? target.nodeName : ''; + },fullscreenEnabled:function() { + return document.fullscreenEnabled + // Safari 13.0.3 on macOS Catalina 10.15.1 still ships with prefixed webkitFullscreenEnabled. + // TODO: If Safari at some point ships with unprefixed version, update the version check above. + || document.webkitFullscreenEnabled + ; + }}; + + function maybeCStringToJsString(cString) { + // "cString > 2" checks if the input is a number, and isn't of the special + // values we accept here, EMSCRIPTEN_EVENT_TARGET_* (which map to 0, 1, 2). + // In other words, if cString > 2 then it's a pointer to a valid place in + // memory, and points to a C string. + return cString > 2 ? UTF8ToString(cString) : cString; + } + + var specialHTMLTargets=[0, typeof document !== 'undefined' ? document : 0, typeof window !== 'undefined' ? window : 0]; + function findEventTarget(target) { + target = maybeCStringToJsString(target); + var domElement = specialHTMLTargets[target] || (typeof document !== 'undefined' ? document.querySelector(target) : undefined); + return domElement; + } + function findCanvasEventTarget(target) { return findEventTarget(target); } + function _emscripten_set_canvas_element_size(target, width, height) { + var canvas = findCanvasEventTarget(target); + if (!canvas) return -4; + canvas.width = width; + canvas.height = height; + return 0; + } + + function getBoundingClientRect(e) { + return specialHTMLTargets.indexOf(e) < 0 ? e.getBoundingClientRect() : {'left':0,'top':0}; + } + function fillMouseEventData(eventStruct, e, target) { + assert(eventStruct % 4 == 0); + var idx = eventStruct >> 2; + HEAP32[idx + 0] = e.screenX; + HEAP32[idx + 1] = e.screenY; + HEAP32[idx + 2] = e.clientX; + HEAP32[idx + 3] = e.clientY; + HEAP32[idx + 4] = e.ctrlKey; + HEAP32[idx + 5] = e.shiftKey; + HEAP32[idx + 6] = e.altKey; + HEAP32[idx + 7] = e.metaKey; + HEAP16[idx*2 + 16] = e.button; + HEAP16[idx*2 + 17] = e.buttons; + + HEAP32[idx + 9] = e["movementX"] + ; + + HEAP32[idx + 10] = e["movementY"] + ; + + var rect = getBoundingClientRect(target); + HEAP32[idx + 11] = e.clientX - rect.left; + HEAP32[idx + 12] = e.clientY - rect.top; + + } + function registerMouseEventCallback(target, userData, useCapture, callbackfunc, eventTypeId, eventTypeString, targetThread) { + if (!JSEvents.mouseEvent) JSEvents.mouseEvent = _malloc( 64 ); + target = findEventTarget(target); + + var mouseEventHandlerFunc = function(ev) { + var e = ev || event; + + // TODO: Make this access thread safe, or this could update live while app is reading it. + fillMouseEventData(JSEvents.mouseEvent, e, target); + + if (wasmTable.get(callbackfunc)(eventTypeId, JSEvents.mouseEvent, userData)) e.preventDefault(); + }; + + var eventHandler = { + target: target, + allowsDeferredCalls: eventTypeString != 'mousemove' && eventTypeString != 'mouseenter' && eventTypeString != 'mouseleave', // Mouse move events do not allow fullscreen/pointer lock requests to be handled in them! + eventTypeString: eventTypeString, + callbackfunc: callbackfunc, + handlerFunc: mouseEventHandlerFunc, + useCapture: useCapture + }; + JSEvents.registerOrRemoveHandler(eventHandler); + } + function _emscripten_set_click_callback_on_thread(target, userData, useCapture, callbackfunc, targetThread) { + registerMouseEventCallback(target, userData, useCapture, callbackfunc, 4, "click", targetThread); + return 0; + } + + function __webgl_enable_ANGLE_instanced_arrays(ctx) { + // Extension available in WebGL 1 from Firefox 26 and Google Chrome 30 onwards. Core feature in WebGL 2. + var ext = ctx.getExtension('ANGLE_instanced_arrays'); + if (ext) { + ctx['vertexAttribDivisor'] = function(index, divisor) { ext['vertexAttribDivisorANGLE'](index, divisor); }; + ctx['drawArraysInstanced'] = function(mode, first, count, primcount) { ext['drawArraysInstancedANGLE'](mode, first, count, primcount); }; + ctx['drawElementsInstanced'] = function(mode, count, type, indices, primcount) { ext['drawElementsInstancedANGLE'](mode, count, type, indices, primcount); }; + return 1; + } + } + + function __webgl_enable_OES_vertex_array_object(ctx) { + // Extension available in WebGL 1 from Firefox 25 and WebKit 536.28/desktop Safari 6.0.3 onwards. Core feature in WebGL 2. + var ext = ctx.getExtension('OES_vertex_array_object'); + if (ext) { + ctx['createVertexArray'] = function() { return ext['createVertexArrayOES'](); }; + ctx['deleteVertexArray'] = function(vao) { ext['deleteVertexArrayOES'](vao); }; + ctx['bindVertexArray'] = function(vao) { ext['bindVertexArrayOES'](vao); }; + ctx['isVertexArray'] = function(vao) { return ext['isVertexArrayOES'](vao); }; + return 1; + } + } + + function __webgl_enable_WEBGL_draw_buffers(ctx) { + // Extension available in WebGL 1 from Firefox 28 onwards. Core feature in WebGL 2. + var ext = ctx.getExtension('WEBGL_draw_buffers'); + if (ext) { + ctx['drawBuffers'] = function(n, bufs) { ext['drawBuffersWEBGL'](n, bufs); }; + return 1; + } + } + + function __webgl_enable_WEBGL_draw_instanced_base_vertex_base_instance(ctx) { + // Closure is expected to be allowed to minify the '.dibvbi' property, so not accessing it quoted. + return !!(ctx.dibvbi = ctx.getExtension('WEBGL_draw_instanced_base_vertex_base_instance')); + } + + function __webgl_enable_WEBGL_multi_draw_instanced_base_vertex_base_instance(ctx) { + // Closure is expected to be allowed to minify the '.mdibvbi' property, so not accessing it quoted. + return !!(ctx.mdibvbi = ctx.getExtension('WEBGL_multi_draw_instanced_base_vertex_base_instance')); + } + + function __webgl_enable_WEBGL_multi_draw(ctx) { + // Closure is expected to be allowed to minify the '.multiDrawWebgl' property, so not accessing it quoted. + return !!(ctx.multiDrawWebgl = ctx.getExtension('WEBGL_multi_draw')); + } + var GL={counter:1,buffers:[],mappedBuffers:{},programs:[],framebuffers:[],renderbuffers:[],textures:[],shaders:[],vaos:[],contexts:[],offscreenCanvases:{},queries:[],samplers:[],transformFeedbacks:[],syncs:[],byteSizeByTypeRoot:5120,byteSizeByType:[1,1,2,2,4,4,4,2,3,4,8],stringCache:{},stringiCache:{},unpackAlignment:4,recordError:function recordError(errorCode) { + if (!GL.lastError) { + GL.lastError = errorCode; + } + },getNewId:function(table) { + var ret = GL.counter++; + for (var i = table.length; i < ret; i++) { + table[i] = null; + } + return ret; + },MAX_TEMP_BUFFER_SIZE:2097152,numTempVertexBuffersPerSize:64,log2ceilLookup:function(i) { + return 32 - Math.clz32(i === 0 ? 0 : i - 1); + },generateTempBuffers:function(quads, context) { + var largestIndex = GL.log2ceilLookup(GL.MAX_TEMP_BUFFER_SIZE); + context.tempVertexBufferCounters1 = []; + context.tempVertexBufferCounters2 = []; + context.tempVertexBufferCounters1.length = context.tempVertexBufferCounters2.length = largestIndex+1; + context.tempVertexBuffers1 = []; + context.tempVertexBuffers2 = []; + context.tempVertexBuffers1.length = context.tempVertexBuffers2.length = largestIndex+1; + context.tempIndexBuffers = []; + context.tempIndexBuffers.length = largestIndex+1; + for (var i = 0; i <= largestIndex; ++i) { + context.tempIndexBuffers[i] = null; // Created on-demand + context.tempVertexBufferCounters1[i] = context.tempVertexBufferCounters2[i] = 0; + var ringbufferLength = GL.numTempVertexBuffersPerSize; + context.tempVertexBuffers1[i] = []; + context.tempVertexBuffers2[i] = []; + var ringbuffer1 = context.tempVertexBuffers1[i]; + var ringbuffer2 = context.tempVertexBuffers2[i]; + ringbuffer1.length = ringbuffer2.length = ringbufferLength; + for (var j = 0; j < ringbufferLength; ++j) { + ringbuffer1[j] = ringbuffer2[j] = null; // Created on-demand + } + } + + if (quads) { + // GL_QUAD indexes can be precalculated + context.tempQuadIndexBuffer = GLctx.createBuffer(); + context.GLctx.bindBuffer(0x8893 /*GL_ELEMENT_ARRAY_BUFFER*/, context.tempQuadIndexBuffer); + var numIndexes = GL.MAX_TEMP_BUFFER_SIZE >> 1; + var quadIndexes = new Uint16Array(numIndexes); + var i = 0, v = 0; + while (1) { + quadIndexes[i++] = v; + if (i >= numIndexes) break; + quadIndexes[i++] = v+1; + if (i >= numIndexes) break; + quadIndexes[i++] = v+2; + if (i >= numIndexes) break; + quadIndexes[i++] = v; + if (i >= numIndexes) break; + quadIndexes[i++] = v+2; + if (i >= numIndexes) break; + quadIndexes[i++] = v+3; + if (i >= numIndexes) break; + v += 4; + } + context.GLctx.bufferData(0x8893 /*GL_ELEMENT_ARRAY_BUFFER*/, quadIndexes, 0x88E4 /*GL_STATIC_DRAW*/); + context.GLctx.bindBuffer(0x8893 /*GL_ELEMENT_ARRAY_BUFFER*/, null); + } + },getTempVertexBuffer:function getTempVertexBuffer(sizeBytes) { + var idx = GL.log2ceilLookup(sizeBytes); + var ringbuffer = GL.currentContext.tempVertexBuffers1[idx]; + var nextFreeBufferIndex = GL.currentContext.tempVertexBufferCounters1[idx]; + GL.currentContext.tempVertexBufferCounters1[idx] = (GL.currentContext.tempVertexBufferCounters1[idx]+1) & (GL.numTempVertexBuffersPerSize-1); + var vbo = ringbuffer[nextFreeBufferIndex]; + if (vbo) { + return vbo; + } + var prevVBO = GLctx.getParameter(0x8894 /*GL_ARRAY_BUFFER_BINDING*/); + ringbuffer[nextFreeBufferIndex] = GLctx.createBuffer(); + GLctx.bindBuffer(0x8892 /*GL_ARRAY_BUFFER*/, ringbuffer[nextFreeBufferIndex]); + GLctx.bufferData(0x8892 /*GL_ARRAY_BUFFER*/, 1 << idx, 0x88E8 /*GL_DYNAMIC_DRAW*/); + GLctx.bindBuffer(0x8892 /*GL_ARRAY_BUFFER*/, prevVBO); + return ringbuffer[nextFreeBufferIndex]; + },getTempIndexBuffer:function getTempIndexBuffer(sizeBytes) { + var idx = GL.log2ceilLookup(sizeBytes); + var ibo = GL.currentContext.tempIndexBuffers[idx]; + if (ibo) { + return ibo; + } + var prevIBO = GLctx.getParameter(0x8895 /*ELEMENT_ARRAY_BUFFER_BINDING*/); + GL.currentContext.tempIndexBuffers[idx] = GLctx.createBuffer(); + GLctx.bindBuffer(0x8893 /*GL_ELEMENT_ARRAY_BUFFER*/, GL.currentContext.tempIndexBuffers[idx]); + GLctx.bufferData(0x8893 /*GL_ELEMENT_ARRAY_BUFFER*/, 1 << idx, 0x88E8 /*GL_DYNAMIC_DRAW*/); + GLctx.bindBuffer(0x8893 /*GL_ELEMENT_ARRAY_BUFFER*/, prevIBO); + return GL.currentContext.tempIndexBuffers[idx]; + },newRenderingFrameStarted:function newRenderingFrameStarted() { + if (!GL.currentContext) { + return; + } + var vb = GL.currentContext.tempVertexBuffers1; + GL.currentContext.tempVertexBuffers1 = GL.currentContext.tempVertexBuffers2; + GL.currentContext.tempVertexBuffers2 = vb; + vb = GL.currentContext.tempVertexBufferCounters1; + GL.currentContext.tempVertexBufferCounters1 = GL.currentContext.tempVertexBufferCounters2; + GL.currentContext.tempVertexBufferCounters2 = vb; + var largestIndex = GL.log2ceilLookup(GL.MAX_TEMP_BUFFER_SIZE); + for (var i = 0; i <= largestIndex; ++i) { + GL.currentContext.tempVertexBufferCounters1[i] = 0; + } + },getSource:function(shader, count, string, length) { + var source = ''; + for (var i = 0; i < count; ++i) { + var len = length ? HEAP32[(((length)+(i*4))>>2)] : -1; + source += UTF8ToString(HEAP32[(((string)+(i*4))>>2)], len < 0 ? undefined : len); + } + return source; + },calcBufLength:function calcBufLength(size, type, stride, count) { + if (stride > 0) { + return count * stride; // XXXvlad this is not exactly correct I don't think + } + var typeSize = GL.byteSizeByType[type - GL.byteSizeByTypeRoot]; + return size * typeSize * count; + },usedTempBuffers:[],preDrawHandleClientVertexAttribBindings:function preDrawHandleClientVertexAttribBindings(count) { + GL.resetBufferBinding = false; + + // TODO: initial pass to detect ranges we need to upload, might not need an upload per attrib + for (var i = 0; i < GL.currentContext.maxVertexAttribs; ++i) { + var cb = GL.currentContext.clientBuffers[i]; + if (!cb.clientside || !cb.enabled) continue; + + GL.resetBufferBinding = true; + + var size = GL.calcBufLength(cb.size, cb.type, cb.stride, count); + var buf = GL.getTempVertexBuffer(size); + GLctx.bindBuffer(0x8892 /*GL_ARRAY_BUFFER*/, buf); + GLctx.bufferSubData(0x8892 /*GL_ARRAY_BUFFER*/, + 0, + HEAPU8.subarray(cb.ptr, cb.ptr + size)); + cb.vertexAttribPointerAdaptor.call(GLctx, i, cb.size, cb.type, cb.normalized, cb.stride, 0); + } + },postDrawHandleClientVertexAttribBindings:function postDrawHandleClientVertexAttribBindings() { + if (GL.resetBufferBinding) { + GLctx.bindBuffer(0x8892 /*GL_ARRAY_BUFFER*/, GL.buffers[GLctx.currentArrayBufferBinding]); + } + },createContext:function(canvas, webGLContextAttributes) { + + // BUG: Workaround Safari WebGL issue: After successfully acquiring WebGL context on a canvas, + // calling .getContext() will always return that context independent of which 'webgl' or 'webgl2' + // context version was passed. See https://bugs.webkit.org/show_bug.cgi?id=222758 and + // https://github.com/emscripten-core/emscripten/issues/13295. + // TODO: Once the bug is fixed and shipped in Safari, adjust the Safari version field in above check. + if (!canvas.getContextSafariWebGL2Fixed) { + canvas.getContextSafariWebGL2Fixed = canvas.getContext; + canvas.getContext = function(ver, attrs) { + var gl = canvas.getContextSafariWebGL2Fixed(ver, attrs); + return ((ver == 'webgl') == (gl instanceof WebGLRenderingContext)) ? gl : null; + } + } + + var ctx = + (webGLContextAttributes.majorVersion > 1) + ? + canvas.getContext("webgl2", webGLContextAttributes) + : + (canvas.getContext("webgl", webGLContextAttributes) + // https://caniuse.com/#feat=webgl + ); + + if (!ctx) return 0; + + var handle = GL.registerContext(ctx, webGLContextAttributes); + + return handle; + },registerContext:function(ctx, webGLContextAttributes) { + // without pthreads a context is just an integer ID + var handle = GL.getNewId(GL.contexts); + + var context = { + handle: handle, + attributes: webGLContextAttributes, + version: webGLContextAttributes.majorVersion, + GLctx: ctx + }; + + // Store the created context object so that we can access the context given a canvas without having to pass the parameters again. + if (ctx.canvas) ctx.canvas.GLctxObject = context; + GL.contexts[handle] = context; + if (typeof webGLContextAttributes.enableExtensionsByDefault === 'undefined' || webGLContextAttributes.enableExtensionsByDefault) { + GL.initExtensions(context); + } + + context.maxVertexAttribs = context.GLctx.getParameter(0x8869 /*GL_MAX_VERTEX_ATTRIBS*/); + context.clientBuffers = []; + for (var i = 0; i < context.maxVertexAttribs; i++) { + context.clientBuffers[i] = { enabled: false, clientside: false, size: 0, type: 0, normalized: 0, stride: 0, ptr: 0, vertexAttribPointerAdaptor: null }; + } + + GL.generateTempBuffers(false, context); + + return handle; + },makeContextCurrent:function(contextHandle) { + + GL.currentContext = GL.contexts[contextHandle]; // Active Emscripten GL layer context object. + Module.ctx = GLctx = GL.currentContext && GL.currentContext.GLctx; // Active WebGL context object. + return !(contextHandle && !GLctx); + },getContext:function(contextHandle) { + return GL.contexts[contextHandle]; + },deleteContext:function(contextHandle) { + if (GL.currentContext === GL.contexts[contextHandle]) GL.currentContext = null; + if (typeof JSEvents === 'object') JSEvents.removeAllHandlersOnTarget(GL.contexts[contextHandle].GLctx.canvas); // Release all JS event handlers on the DOM element that the GL context is associated with since the context is now deleted. + if (GL.contexts[contextHandle] && GL.contexts[contextHandle].GLctx.canvas) GL.contexts[contextHandle].GLctx.canvas.GLctxObject = undefined; // Make sure the canvas object no longer refers to the context object so there are no GC surprises. + GL.contexts[contextHandle] = null; + },initExtensions:function(context) { + // If this function is called without a specific context object, init the extensions of the currently active context. + if (!context) context = GL.currentContext; + + if (context.initExtensionsDone) return; + context.initExtensionsDone = true; + + var GLctx = context.GLctx; + + // Detect the presence of a few extensions manually, this GL interop layer itself will need to know if they exist. + + // Extensions that are only available in WebGL 1 (the calls will be no-ops if called on a WebGL 2 context active) + __webgl_enable_ANGLE_instanced_arrays(GLctx); + __webgl_enable_OES_vertex_array_object(GLctx); + __webgl_enable_WEBGL_draw_buffers(GLctx); + // Extensions that are available from WebGL >= 2 (no-op if called on a WebGL 1 context active) + __webgl_enable_WEBGL_draw_instanced_base_vertex_base_instance(GLctx); + __webgl_enable_WEBGL_multi_draw_instanced_base_vertex_base_instance(GLctx); + + // On WebGL 2, EXT_disjoint_timer_query is replaced with an alternative + // that's based on core APIs, and exposes only the queryCounterEXT() + // entrypoint. + if (context.version >= 2) { + GLctx.disjointTimerQueryExt = GLctx.getExtension("EXT_disjoint_timer_query_webgl2"); + } + + // However, Firefox exposes the WebGL 1 version on WebGL 2 as well and + // thus we look for the WebGL 1 version again if the WebGL 2 version + // isn't present. https://bugzilla.mozilla.org/show_bug.cgi?id=1328882 + if (context.version < 2 || !GLctx.disjointTimerQueryExt) + { + GLctx.disjointTimerQueryExt = GLctx.getExtension("EXT_disjoint_timer_query"); + } + + __webgl_enable_WEBGL_multi_draw(GLctx); + + // .getSupportedExtensions() can return null if context is lost, so coerce to empty array. + var exts = GLctx.getSupportedExtensions() || []; + exts.forEach(function(ext) { + // WEBGL_lose_context, WEBGL_debug_renderer_info and WEBGL_debug_shaders are not enabled by default. + if (ext.indexOf('lose_context') < 0 && ext.indexOf('debug') < 0) { + // Call .getExtension() to enable that extension permanently. + GLctx.getExtension(ext); + } + }); + }}; + + var __emscripten_webgl_power_preferences=['default', 'low-power', 'high-performance']; + function _emscripten_webgl_do_create_context(target, attributes) { + assert(attributes); + var a = attributes >> 2; + var powerPreference = HEAP32[a + (24>>2)]; + var contextAttributes = { + 'alpha': !!HEAP32[a + (0>>2)], + 'depth': !!HEAP32[a + (4>>2)], + 'stencil': !!HEAP32[a + (8>>2)], + 'antialias': !!HEAP32[a + (12>>2)], + 'premultipliedAlpha': !!HEAP32[a + (16>>2)], + 'preserveDrawingBuffer': !!HEAP32[a + (20>>2)], + 'powerPreference': __emscripten_webgl_power_preferences[powerPreference], + 'failIfMajorPerformanceCaveat': !!HEAP32[a + (28>>2)], + // The following are not predefined WebGL context attributes in the WebGL specification, so the property names can be minified by Closure. + majorVersion: HEAP32[a + (32>>2)], + minorVersion: HEAP32[a + (36>>2)], + enableExtensionsByDefault: HEAP32[a + (40>>2)], + explicitSwapControl: HEAP32[a + (44>>2)], + proxyContextToMainThread: HEAP32[a + (48>>2)], + renderViaOffscreenBackBuffer: HEAP32[a + (52>>2)] + }; + + var canvas = findCanvasEventTarget(target); + + if (!canvas) { + return 0; + } + + if (contextAttributes.explicitSwapControl) { + return 0; + } + + var contextHandle = GL.createContext(canvas, contextAttributes); + return contextHandle; + } + function _emscripten_webgl_create_context(a0,a1 + ) { + return _emscripten_webgl_do_create_context(a0,a1); + } + + function _emscripten_webgl_init_context_attributes(attributes) { + assert(attributes); + var a = attributes >> 2; + for (var i = 0; i < (56>>2); ++i) { + HEAP32[a+i] = 0; + } + + HEAP32[a + (0>>2)] = + HEAP32[a + (4>>2)] = + HEAP32[a + (12>>2)] = + HEAP32[a + (16>>2)] = + HEAP32[a + (32>>2)] = + HEAP32[a + (40>>2)] = 1; + + } + + function _emscripten_webgl_make_context_current(contextHandle) { + var success = GL.makeContextCurrent(contextHandle); + return success ? 0 : -5; + } + + function flush_NO_FILESYSTEM() { + // flush anything remaining in the buffers during shutdown + if (typeof _fflush !== 'undefined') _fflush(0); + var buffers = SYSCALLS.buffers; + if (buffers[1].length) SYSCALLS.printChar(1, 10); + if (buffers[2].length) SYSCALLS.printChar(2, 10); + } + + var SYSCALLS={mappings:{},buffers:[null,[],[]],printChar:function(stream, curr) { + var buffer = SYSCALLS.buffers[stream]; + assert(buffer); + if (curr === 0 || curr === 10) { + (stream === 1 ? out : err)(UTF8ArrayToString(buffer, 0)); + buffer.length = 0; + } else { + buffer.push(curr); + } + },varargs:undefined,get:function() { + assert(SYSCALLS.varargs != undefined); + SYSCALLS.varargs += 4; + var ret = HEAP32[(((SYSCALLS.varargs)-(4))>>2)]; + return ret; + },getStr:function(ptr) { + var ret = UTF8ToString(ptr); + return ret; + },get64:function(low, high) { + if (low >= 0) assert(high === 0); + else assert(high === -1); + return low; + }}; + function _fd_write(fd, iov, iovcnt, pnum) { + // hack to support printf in SYSCALLS_REQUIRE_FILESYSTEM=0 + var num = 0; + for (var i = 0; i < iovcnt; i++) { + var ptr = HEAP32[(((iov)+(i*8))>>2)]; + var len = HEAP32[(((iov)+(i*8 + 4))>>2)]; + for (var j = 0; j < len; j++) { + SYSCALLS.printChar(fd, HEAPU8[ptr+j]); + } + num += len; + } + HEAP32[((pnum)>>2)] = num + return 0; + } + + function _glAttachShader(program, shader) { + GLctx.attachShader(GL.programs[program], GL.shaders[shader]); + } + + function _glBindBuffer(target, buffer) { + if (target == 0x8892 /*GL_ARRAY_BUFFER*/) { + GLctx.currentArrayBufferBinding = buffer; + } else if (target == 0x8893 /*GL_ELEMENT_ARRAY_BUFFER*/) { + GLctx.currentElementArrayBufferBinding = buffer; + } + + if (target == 0x88EB /*GL_PIXEL_PACK_BUFFER*/) { + // In WebGL 2 glReadPixels entry point, we need to use a different WebGL 2 API function call when a buffer is bound to + // GL_PIXEL_PACK_BUFFER_BINDING point, so must keep track whether that binding point is non-null to know what is + // the proper API function to call. + GLctx.currentPixelPackBufferBinding = buffer; + } else if (target == 0x88EC /*GL_PIXEL_UNPACK_BUFFER*/) { + // In WebGL 2 gl(Compressed)Tex(Sub)Image[23]D entry points, we need to + // use a different WebGL 2 API function call when a buffer is bound to + // GL_PIXEL_UNPACK_BUFFER_BINDING point, so must keep track whether that + // binding point is non-null to know what is the proper API function to + // call. + GLctx.currentPixelUnpackBufferBinding = buffer; + } + GLctx.bindBuffer(target, GL.buffers[buffer]); + } + + function _glBindVertexArray(vao) { + GLctx['bindVertexArray'](GL.vaos[vao]); + var ibo = GLctx.getParameter(0x8895 /*ELEMENT_ARRAY_BUFFER_BINDING*/); + GLctx.currentElementArrayBufferBinding = ibo ? (ibo.name | 0) : 0; + } + + function _glBufferData(target, size, data, usage) { + + if (GL.currentContext.version >= 2) { // WebGL 2 provides new garbage-free entry points to call to WebGL. Use those always when possible. + if (data) { + GLctx.bufferData(target, HEAPU8, usage, data, size); + } else { + GLctx.bufferData(target, size, usage); + } + } else { + // N.b. here first form specifies a heap subarray, second form an integer size, so the ?: code here is polymorphic. It is advised to avoid + // randomly mixing both uses in calling code, to avoid any potential JS engine JIT issues. + GLctx.bufferData(target, data ? HEAPU8.subarray(data, data+size) : size, usage); + } + } + + function _glClear(x0) { GLctx['clear'](x0) } + + function _glClearColor(x0, x1, x2, x3) { GLctx['clearColor'](x0, x1, x2, x3) } + + function _glClearDepth(x0) { GLctx['clearDepth'](x0) } + + function _glCompileShader(shader) { + GLctx.compileShader(GL.shaders[shader]); + } + + function _glCreateProgram() { + var id = GL.getNewId(GL.programs); + var program = GLctx.createProgram(); + // Store additional information needed for each shader program: + program.name = id; + // Lazy cache results of glGetProgramiv(GL_ACTIVE_UNIFORM_MAX_LENGTH/GL_ACTIVE_ATTRIBUTE_MAX_LENGTH/GL_ACTIVE_UNIFORM_BLOCK_MAX_NAME_LENGTH) + program.maxUniformLength = program.maxAttributeLength = program.maxUniformBlockNameLength = 0; + program.uniformIdCounter = 1; + GL.programs[id] = program; + return id; + } + + function _glCreateShader(shaderType) { + var id = GL.getNewId(GL.shaders); + GL.shaders[id] = GLctx.createShader(shaderType); + + return id; + } + + function _glDeleteBuffers(n, buffers) { + for (var i = 0; i < n; i++) { + var id = HEAP32[(((buffers)+(i*4))>>2)]; + var buffer = GL.buffers[id]; + + // From spec: "glDeleteBuffers silently ignores 0's and names that do not + // correspond to existing buffer objects." + if (!buffer) continue; + + GLctx.deleteBuffer(buffer); + buffer.name = 0; + GL.buffers[id] = null; + + if (id == GLctx.currentArrayBufferBinding) GLctx.currentArrayBufferBinding = 0; + if (id == GLctx.currentElementArrayBufferBinding) GLctx.currentElementArrayBufferBinding = 0; + if (id == GLctx.currentPixelPackBufferBinding) GLctx.currentPixelPackBufferBinding = 0; + if (id == GLctx.currentPixelUnpackBufferBinding) GLctx.currentPixelUnpackBufferBinding = 0; + } + } + + function _glDeleteProgram(id) { + if (!id) return; + var program = GL.programs[id]; + if (!program) { // glDeleteProgram actually signals an error when deleting a nonexisting object, unlike some other GL delete functions. + GL.recordError(0x501 /* GL_INVALID_VALUE */); + return; + } + GLctx.deleteProgram(program); + program.name = 0; + GL.programs[id] = null; + } + + function _glDeleteShader(id) { + if (!id) return; + var shader = GL.shaders[id]; + if (!shader) { // glDeleteShader actually signals an error when deleting a nonexisting object, unlike some other GL delete functions. + GL.recordError(0x501 /* GL_INVALID_VALUE */); + return; + } + GLctx.deleteShader(shader); + GL.shaders[id] = null; + } + + function _glDeleteVertexArrays(n, vaos) { + for (var i = 0; i < n; i++) { + var id = HEAP32[(((vaos)+(i*4))>>2)]; + GLctx['deleteVertexArray'](GL.vaos[id]); + GL.vaos[id] = null; + } + } + + function _glDepthFunc(x0) { GLctx['depthFunc'](x0) } + + function _glDepthMask(flag) { + GLctx.depthMask(!!flag); + } + + function _glDrawArrays(mode, first, count) { + // bind any client-side buffers + GL.preDrawHandleClientVertexAttribBindings(first + count); + + GLctx.drawArrays(mode, first, count); + + GL.postDrawHandleClientVertexAttribBindings(); + } + + function _glEnable(x0) { GLctx['enable'](x0) } + + function _glEnableVertexAttribArray(index) { + var cb = GL.currentContext.clientBuffers[index]; + cb.enabled = true; + GLctx.enableVertexAttribArray(index); + } + + function __glGenObject(n, buffers, createFunction, objectTable + ) { + for (var i = 0; i < n; i++) { + var buffer = GLctx[createFunction](); + var id = buffer && GL.getNewId(objectTable); + if (buffer) { + buffer.name = id; + objectTable[id] = buffer; + } else { + GL.recordError(0x502 /* GL_INVALID_OPERATION */); + } + HEAP32[(((buffers)+(i*4))>>2)] = id; + } + } + function _glGenBuffers(n, buffers) { + __glGenObject(n, buffers, 'createBuffer', GL.buffers + ); + } + + function _glGenVertexArrays(n, arrays) { + __glGenObject(n, arrays, 'createVertexArray', GL.vaos + ); + } + + function _glGetAttribLocation(program, name) { + return GLctx.getAttribLocation(GL.programs[program], UTF8ToString(name)); + } + + function _glGetProgramInfoLog(program, maxLength, length, infoLog) { + var log = GLctx.getProgramInfoLog(GL.programs[program]); + if (log === null) log = '(unknown error)'; + var numBytesWrittenExclNull = (maxLength > 0 && infoLog) ? stringToUTF8(log, infoLog, maxLength) : 0; + if (length) HEAP32[((length)>>2)] = numBytesWrittenExclNull; + } + + function _glGetProgramiv(program, pname, p) { + if (!p) { + // GLES2 specification does not specify how to behave if p is a null pointer. Since calling this function does not make sense + // if p == null, issue a GL error to notify user about it. + GL.recordError(0x501 /* GL_INVALID_VALUE */); + return; + } + + if (program >= GL.counter) { + GL.recordError(0x501 /* GL_INVALID_VALUE */); + return; + } + + program = GL.programs[program]; + + if (pname == 0x8B84) { // GL_INFO_LOG_LENGTH + var log = GLctx.getProgramInfoLog(program); + if (log === null) log = '(unknown error)'; + HEAP32[((p)>>2)] = log.length + 1; + } else if (pname == 0x8B87 /* GL_ACTIVE_UNIFORM_MAX_LENGTH */) { + if (!program.maxUniformLength) { + for (var i = 0; i < GLctx.getProgramParameter(program, 0x8B86/*GL_ACTIVE_UNIFORMS*/); ++i) { + program.maxUniformLength = Math.max(program.maxUniformLength, GLctx.getActiveUniform(program, i).name.length+1); + } + } + HEAP32[((p)>>2)] = program.maxUniformLength; + } else if (pname == 0x8B8A /* GL_ACTIVE_ATTRIBUTE_MAX_LENGTH */) { + if (!program.maxAttributeLength) { + for (var i = 0; i < GLctx.getProgramParameter(program, 0x8B89/*GL_ACTIVE_ATTRIBUTES*/); ++i) { + program.maxAttributeLength = Math.max(program.maxAttributeLength, GLctx.getActiveAttrib(program, i).name.length+1); + } + } + HEAP32[((p)>>2)] = program.maxAttributeLength; + } else if (pname == 0x8A35 /* GL_ACTIVE_UNIFORM_BLOCK_MAX_NAME_LENGTH */) { + if (!program.maxUniformBlockNameLength) { + for (var i = 0; i < GLctx.getProgramParameter(program, 0x8A36/*GL_ACTIVE_UNIFORM_BLOCKS*/); ++i) { + program.maxUniformBlockNameLength = Math.max(program.maxUniformBlockNameLength, GLctx.getActiveUniformBlockName(program, i).length+1); + } + } + HEAP32[((p)>>2)] = program.maxUniformBlockNameLength; + } else { + HEAP32[((p)>>2)] = GLctx.getProgramParameter(program, pname); + } + } + + function _glGetShaderInfoLog(shader, maxLength, length, infoLog) { + var log = GLctx.getShaderInfoLog(GL.shaders[shader]); + if (log === null) log = '(unknown error)'; + var numBytesWrittenExclNull = (maxLength > 0 && infoLog) ? stringToUTF8(log, infoLog, maxLength) : 0; + if (length) HEAP32[((length)>>2)] = numBytesWrittenExclNull; + } + + function _glGetShaderiv(shader, pname, p) { + if (!p) { + // GLES2 specification does not specify how to behave if p is a null pointer. Since calling this function does not make sense + // if p == null, issue a GL error to notify user about it. + GL.recordError(0x501 /* GL_INVALID_VALUE */); + return; + } + if (pname == 0x8B84) { // GL_INFO_LOG_LENGTH + var log = GLctx.getShaderInfoLog(GL.shaders[shader]); + if (log === null) log = '(unknown error)'; + // The GLES2 specification says that if the shader has an empty info log, + // a value of 0 is returned. Otherwise the log has a null char appended. + // (An empty string is falsey, so we can just check that instead of + // looking at log.length.) + var logLength = log ? log.length + 1 : 0; + HEAP32[((p)>>2)] = logLength; + } else if (pname == 0x8B88) { // GL_SHADER_SOURCE_LENGTH + var source = GLctx.getShaderSource(GL.shaders[shader]); + // source may be a null, or the empty string, both of which are falsey + // values that we report a 0 length for. + var sourceLength = source ? source.length + 1 : 0; + HEAP32[((p)>>2)] = sourceLength; + } else { + HEAP32[((p)>>2)] = GLctx.getShaderParameter(GL.shaders[shader], pname); + } + } + + /** @suppress {checkTypes} */ + function jstoi_q(str) { + return parseInt(str); + } + function _glGetUniformLocation(program, name) { + // Returns the index of '[' character in an uniform that represents an array of uniforms (e.g. colors[10]) + // Closure does counterproductive inlining: https://github.com/google/closure-compiler/issues/3203, so prevent + // inlining manually. + /** @noinline */ + function getLeftBracePos(name) { + return name.slice(-1) == ']' && name.lastIndexOf('['); + } + + name = UTF8ToString(name); + + program = GL.programs[program]; + var uniformLocsById = program.uniformLocsById; // Maps GLuint -> WebGLUniformLocation + var uniformSizeAndIdsByName = program.uniformSizeAndIdsByName; // Maps name -> [uniform array length, GLuint] + var i, j; + var arrayIndex = 0; + var uniformBaseName = name; + + // Invariant: when populating integer IDs for uniform locations, we must maintain the precondition that + // arrays reside in contiguous addresses, i.e. for a 'vec4 colors[10];', colors[4] must be at location colors[0]+4. + // However, user might call glGetUniformLocation(program, "colors") for an array, so we cannot discover based on the user + // input arguments whether the uniform we are dealing with is an array. The only way to discover which uniforms are arrays + // is to enumerate over all the active uniforms in the program. + var leftBrace = getLeftBracePos(name); + + // On the first time invocation of glGetUniformLocation on this shader program: + // initialize cache data structures and discover which uniforms are arrays. + if (!uniformLocsById) { + // maps GLint integer locations to WebGLUniformLocations + program.uniformLocsById = uniformLocsById = {}; + // maps integer locations back to uniform name strings, so that we can lazily fetch uniform array locations + program.uniformArrayNamesById = {}; + + for (i = 0; i < GLctx.getProgramParameter(program, 0x8B86/*GL_ACTIVE_UNIFORMS*/); ++i) { + var u = GLctx.getActiveUniform(program, i); + var nm = u.name; + var sz = u.size; + var lb = getLeftBracePos(nm); + var arrayName = lb > 0 ? nm.slice(0, lb) : nm; + + // Assign a new location. + var id = program.uniformIdCounter; + program.uniformIdCounter += sz; + // Eagerly get the location of the uniformArray[0] base element. + // The remaining indices >0 will be left for lazy evaluation to + // improve performance. Those may never be needed to fetch, if the + // application fills arrays always in full starting from the first + // element of the array. + uniformSizeAndIdsByName[arrayName] = [sz, id]; + + // Store placeholder integers in place that highlight that these + // >0 index locations are array indices pending population. + for(j = 0; j < sz; ++j) { + uniformLocsById[id] = j; + program.uniformArrayNamesById[id++] = arrayName; + } + } + } + + // If user passed an array accessor "[index]", parse the array index off the accessor. + if (leftBrace > 0) { + arrayIndex = jstoi_q(name.slice(leftBrace + 1)) >>> 0; // "index]", coerce parseInt(']') with >>>0 to treat "foo[]" as "foo[0]" and foo[-1] as unsigned out-of-bounds. + uniformBaseName = name.slice(0, leftBrace); + } + + // Have we cached the location of this uniform before? + var sizeAndId = uniformSizeAndIdsByName[uniformBaseName]; // A pair [array length, GLint of the uniform location] + + // If an uniform with this name exists, and if its index is within the array limits (if it's even an array), + // query the WebGLlocation, or return an existing cached location. + if (sizeAndId && arrayIndex < sizeAndId[0]) { + arrayIndex += sizeAndId[1]; // Add the base location of the uniform to the array index offset. + if ((uniformLocsById[arrayIndex] = uniformLocsById[arrayIndex] || GLctx.getUniformLocation(program, name))) { + return arrayIndex; + } + } + return -1; + } + + function _glLinkProgram(program) { + program = GL.programs[program]; + GLctx.linkProgram(program); + // Invalidate earlier computed uniform->ID mappings, those have now become stale + program.uniformLocsById = 0; // Mark as null-like so that glGetUniformLocation() knows to populate this again. + program.uniformSizeAndIdsByName = {}; + + } + + function _glShaderSource(shader, count, string, length) { + var source = GL.getSource(shader, count, string, length); + + GLctx.shaderSource(GL.shaders[shader], source); + } + + function webglGetUniformLocation(location) { + var p = GLctx.currentProgram; + var webglLoc = p.uniformLocsById[location]; + // p.uniformLocsById[location] stores either an integer, or a WebGLUniformLocation. + + // If an integer, we have not yet bound the location, so do it now. The integer value specifies the array index + // we should bind to. + if (webglLoc >= 0) { + p.uniformLocsById[location] = webglLoc = GLctx.getUniformLocation(p, p.uniformArrayNamesById[location] + (webglLoc > 0 ? '[' + webglLoc + ']' : '')); + } + // Else an already cached WebGLUniformLocation, return it. + return webglLoc; + } + + var miniTempWebGLFloatBuffers=[]; + function _glUniformMatrix4fv(location, count, transpose, value) { + + if (GL.currentContext.version >= 2) { // WebGL 2 provides new garbage-free entry points to call to WebGL. Use those always when possible. + GLctx.uniformMatrix4fv(webglGetUniformLocation(location), !!transpose, HEAPF32, value>>2, count*16); + return; + } + + if (count <= 18) { + // avoid allocation when uploading few enough uniforms + var view = miniTempWebGLFloatBuffers[16*count-1]; + // hoist the heap out of the loop for size and for pthreads+growth. + var heap = HEAPF32; + value >>= 2; + for (var i = 0; i < 16 * count; i += 16) { + var dst = value + i; + view[i] = heap[dst]; + view[i + 1] = heap[dst + 1]; + view[i + 2] = heap[dst + 2]; + view[i + 3] = heap[dst + 3]; + view[i + 4] = heap[dst + 4]; + view[i + 5] = heap[dst + 5]; + view[i + 6] = heap[dst + 6]; + view[i + 7] = heap[dst + 7]; + view[i + 8] = heap[dst + 8]; + view[i + 9] = heap[dst + 9]; + view[i + 10] = heap[dst + 10]; + view[i + 11] = heap[dst + 11]; + view[i + 12] = heap[dst + 12]; + view[i + 13] = heap[dst + 13]; + view[i + 14] = heap[dst + 14]; + view[i + 15] = heap[dst + 15]; + } + } else + { + var view = HEAPF32.subarray((value)>>2, (value+count*64)>>2); + } + GLctx.uniformMatrix4fv(webglGetUniformLocation(location), !!transpose, view); + } + + function _glUseProgram(program) { + program = GL.programs[program]; + GLctx.useProgram(program); + // Record the currently active program so that we can access the uniform + // mapping table of that program. + GLctx.currentProgram = program; + } + + function _glVertexAttribPointer(index, size, type, normalized, stride, ptr) { + var cb = GL.currentContext.clientBuffers[index]; + if (!GLctx.currentArrayBufferBinding) { + cb.size = size; + cb.type = type; + cb.normalized = normalized; + cb.stride = stride; + cb.ptr = ptr; + cb.clientside = true; + cb.vertexAttribPointerAdaptor = function(index, size, type, normalized, stride, ptr) { + this.vertexAttribPointer(index, size, type, normalized, stride, ptr); + }; + return; + } + cb.clientside = false; + GLctx.vertexAttribPointer(index, size, type, !!normalized, stride, ptr); + } + + function _setTempRet0($i) { + setTempRet0(($i) | 0); + } +var GLctx;; +var miniTempWebGLFloatBuffersStorage = new Float32Array(288); + for (/**@suppress{duplicate}*/var i = 0; i < 288; ++i) { + miniTempWebGLFloatBuffers[i] = miniTempWebGLFloatBuffersStorage.subarray(0, i+1); + } + ; +var ASSERTIONS = true; + + + +/** @type {function(string, boolean=, number=)} */ +function intArrayFromString(stringy, dontAddNull, length) { + var len = length > 0 ? length : lengthBytesUTF8(stringy)+1; + var u8array = new Array(len); + var numBytesWritten = stringToUTF8Array(stringy, u8array, 0, u8array.length); + if (dontAddNull) u8array.length = numBytesWritten; + return u8array; +} + +function intArrayToString(array) { + var ret = []; + for (var i = 0; i < array.length; i++) { + var chr = array[i]; + if (chr > 0xFF) { + if (ASSERTIONS) { + assert(false, 'Character code ' + chr + ' (' + String.fromCharCode(chr) + ') at offset ' + i + ' not in 0x00-0xFF.'); + } + chr &= 0xFF; + } + ret.push(String.fromCharCode(chr)); + } + return ret.join(''); +} + + +var asmLibraryArg = { + "abort": _abort, + "emscripten_memcpy_big": _emscripten_memcpy_big, + "emscripten_request_animation_frame_loop": _emscripten_request_animation_frame_loop, + "emscripten_resize_heap": _emscripten_resize_heap, + "emscripten_set_canvas_element_size": _emscripten_set_canvas_element_size, + "emscripten_set_click_callback_on_thread": _emscripten_set_click_callback_on_thread, + "emscripten_webgl_create_context": _emscripten_webgl_create_context, + "emscripten_webgl_init_context_attributes": _emscripten_webgl_init_context_attributes, + "emscripten_webgl_make_context_current": _emscripten_webgl_make_context_current, + "fd_write": _fd_write, + "glAttachShader": _glAttachShader, + "glBindBuffer": _glBindBuffer, + "glBindVertexArray": _glBindVertexArray, + "glBufferData": _glBufferData, + "glClear": _glClear, + "glClearColor": _glClearColor, + "glClearDepth": _glClearDepth, + "glCompileShader": _glCompileShader, + "glCreateProgram": _glCreateProgram, + "glCreateShader": _glCreateShader, + "glDeleteBuffers": _glDeleteBuffers, + "glDeleteProgram": _glDeleteProgram, + "glDeleteShader": _glDeleteShader, + "glDeleteVertexArrays": _glDeleteVertexArrays, + "glDepthFunc": _glDepthFunc, + "glDepthMask": _glDepthMask, + "glDrawArrays": _glDrawArrays, + "glEnable": _glEnable, + "glEnableVertexAttribArray": _glEnableVertexAttribArray, + "glGenBuffers": _glGenBuffers, + "glGenVertexArrays": _glGenVertexArrays, + "glGetAttribLocation": _glGetAttribLocation, + "glGetProgramInfoLog": _glGetProgramInfoLog, + "glGetProgramiv": _glGetProgramiv, + "glGetShaderInfoLog": _glGetShaderInfoLog, + "glGetShaderiv": _glGetShaderiv, + "glGetUniformLocation": _glGetUniformLocation, + "glLinkProgram": _glLinkProgram, + "glShaderSource": _glShaderSource, + "glUniformMatrix4fv": _glUniformMatrix4fv, + "glUseProgram": _glUseProgram, + "glVertexAttribPointer": _glVertexAttribPointer, + "setTempRet0": _setTempRet0 +}; +var asm = createWasm(); +/** @type {function(...*):?} */ +var ___wasm_call_ctors = Module["___wasm_call_ctors"] = createExportWrapper("__wasm_call_ctors"); + +/** @type {function(...*):?} */ +var _main = Module["_main"] = createExportWrapper("main"); + +/** @type {function(...*):?} */ +var ___errno_location = Module["___errno_location"] = createExportWrapper("__errno_location"); + +/** @type {function(...*):?} */ +var _fflush = Module["_fflush"] = createExportWrapper("fflush"); + +/** @type {function(...*):?} */ +var stackSave = Module["stackSave"] = createExportWrapper("stackSave"); + +/** @type {function(...*):?} */ +var stackRestore = Module["stackRestore"] = createExportWrapper("stackRestore"); + +/** @type {function(...*):?} */ +var stackAlloc = Module["stackAlloc"] = createExportWrapper("stackAlloc"); + +/** @type {function(...*):?} */ +var _emscripten_stack_init = Module["_emscripten_stack_init"] = function() { + return (_emscripten_stack_init = Module["_emscripten_stack_init"] = Module["asm"]["emscripten_stack_init"]).apply(null, arguments); +}; + +/** @type {function(...*):?} */ +var _emscripten_stack_get_free = Module["_emscripten_stack_get_free"] = function() { + return (_emscripten_stack_get_free = Module["_emscripten_stack_get_free"] = Module["asm"]["emscripten_stack_get_free"]).apply(null, arguments); +}; + +/** @type {function(...*):?} */ +var _emscripten_stack_get_end = Module["_emscripten_stack_get_end"] = function() { + return (_emscripten_stack_get_end = Module["_emscripten_stack_get_end"] = Module["asm"]["emscripten_stack_get_end"]).apply(null, arguments); +}; + +/** @type {function(...*):?} */ +var _malloc = Module["_malloc"] = createExportWrapper("malloc"); + +/** @type {function(...*):?} */ +var _free = Module["_free"] = createExportWrapper("free"); + +/** @type {function(...*):?} */ +var dynCall_jiji = Module["dynCall_jiji"] = createExportWrapper("dynCall_jiji"); + + + + + +// === Auto-generated postamble setup entry stuff === + +if (!Object.getOwnPropertyDescriptor(Module, "intArrayFromString")) Module["intArrayFromString"] = function() { abort("'intArrayFromString' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "intArrayToString")) Module["intArrayToString"] = function() { abort("'intArrayToString' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "ccall")) Module["ccall"] = function() { abort("'ccall' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "cwrap")) Module["cwrap"] = function() { abort("'cwrap' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "setValue")) Module["setValue"] = function() { abort("'setValue' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "getValue")) Module["getValue"] = function() { abort("'getValue' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "allocate")) Module["allocate"] = function() { abort("'allocate' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "UTF8ArrayToString")) Module["UTF8ArrayToString"] = function() { abort("'UTF8ArrayToString' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "UTF8ToString")) Module["UTF8ToString"] = function() { abort("'UTF8ToString' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "stringToUTF8Array")) Module["stringToUTF8Array"] = function() { abort("'stringToUTF8Array' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "stringToUTF8")) Module["stringToUTF8"] = function() { abort("'stringToUTF8' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "lengthBytesUTF8")) Module["lengthBytesUTF8"] = function() { abort("'lengthBytesUTF8' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "stackTrace")) Module["stackTrace"] = function() { abort("'stackTrace' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "addOnPreRun")) Module["addOnPreRun"] = function() { abort("'addOnPreRun' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "addOnInit")) Module["addOnInit"] = function() { abort("'addOnInit' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "addOnPreMain")) Module["addOnPreMain"] = function() { abort("'addOnPreMain' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "addOnExit")) Module["addOnExit"] = function() { abort("'addOnExit' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "addOnPostRun")) Module["addOnPostRun"] = function() { abort("'addOnPostRun' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "writeStringToMemory")) Module["writeStringToMemory"] = function() { abort("'writeStringToMemory' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "writeArrayToMemory")) Module["writeArrayToMemory"] = function() { abort("'writeArrayToMemory' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "writeAsciiToMemory")) Module["writeAsciiToMemory"] = function() { abort("'writeAsciiToMemory' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "addRunDependency")) Module["addRunDependency"] = function() { abort("'addRunDependency' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ). Alternatively, forcing filesystem support (-s FORCE_FILESYSTEM=1) can export this for you") }; +if (!Object.getOwnPropertyDescriptor(Module, "removeRunDependency")) Module["removeRunDependency"] = function() { abort("'removeRunDependency' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ). Alternatively, forcing filesystem support (-s FORCE_FILESYSTEM=1) can export this for you") }; +if (!Object.getOwnPropertyDescriptor(Module, "FS_createFolder")) Module["FS_createFolder"] = function() { abort("'FS_createFolder' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "FS_createPath")) Module["FS_createPath"] = function() { abort("'FS_createPath' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ). Alternatively, forcing filesystem support (-s FORCE_FILESYSTEM=1) can export this for you") }; +if (!Object.getOwnPropertyDescriptor(Module, "FS_createDataFile")) Module["FS_createDataFile"] = function() { abort("'FS_createDataFile' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ). Alternatively, forcing filesystem support (-s FORCE_FILESYSTEM=1) can export this for you") }; +if (!Object.getOwnPropertyDescriptor(Module, "FS_createPreloadedFile")) Module["FS_createPreloadedFile"] = function() { abort("'FS_createPreloadedFile' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ). Alternatively, forcing filesystem support (-s FORCE_FILESYSTEM=1) can export this for you") }; +if (!Object.getOwnPropertyDescriptor(Module, "FS_createLazyFile")) Module["FS_createLazyFile"] = function() { abort("'FS_createLazyFile' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ). Alternatively, forcing filesystem support (-s FORCE_FILESYSTEM=1) can export this for you") }; +if (!Object.getOwnPropertyDescriptor(Module, "FS_createLink")) Module["FS_createLink"] = function() { abort("'FS_createLink' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "FS_createDevice")) Module["FS_createDevice"] = function() { abort("'FS_createDevice' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ). Alternatively, forcing filesystem support (-s FORCE_FILESYSTEM=1) can export this for you") }; +if (!Object.getOwnPropertyDescriptor(Module, "FS_unlink")) Module["FS_unlink"] = function() { abort("'FS_unlink' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ). Alternatively, forcing filesystem support (-s FORCE_FILESYSTEM=1) can export this for you") }; +if (!Object.getOwnPropertyDescriptor(Module, "getLEB")) Module["getLEB"] = function() { abort("'getLEB' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "getFunctionTables")) Module["getFunctionTables"] = function() { abort("'getFunctionTables' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "alignFunctionTables")) Module["alignFunctionTables"] = function() { abort("'alignFunctionTables' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "registerFunctions")) Module["registerFunctions"] = function() { abort("'registerFunctions' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "addFunction")) Module["addFunction"] = function() { abort("'addFunction' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "removeFunction")) Module["removeFunction"] = function() { abort("'removeFunction' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "getFuncWrapper")) Module["getFuncWrapper"] = function() { abort("'getFuncWrapper' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "prettyPrint")) Module["prettyPrint"] = function() { abort("'prettyPrint' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "makeBigInt")) Module["makeBigInt"] = function() { abort("'makeBigInt' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "dynCall")) Module["dynCall"] = function() { abort("'dynCall' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "getCompilerSetting")) Module["getCompilerSetting"] = function() { abort("'getCompilerSetting' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "print")) Module["print"] = function() { abort("'print' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "printErr")) Module["printErr"] = function() { abort("'printErr' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "getTempRet0")) Module["getTempRet0"] = function() { abort("'getTempRet0' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "setTempRet0")) Module["setTempRet0"] = function() { abort("'setTempRet0' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "callMain")) Module["callMain"] = function() { abort("'callMain' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "abort")) Module["abort"] = function() { abort("'abort' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "stringToNewUTF8")) Module["stringToNewUTF8"] = function() { abort("'stringToNewUTF8' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "setFileTime")) Module["setFileTime"] = function() { abort("'setFileTime' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "emscripten_realloc_buffer")) Module["emscripten_realloc_buffer"] = function() { abort("'emscripten_realloc_buffer' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "ENV")) Module["ENV"] = function() { abort("'ENV' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "ERRNO_CODES")) Module["ERRNO_CODES"] = function() { abort("'ERRNO_CODES' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "ERRNO_MESSAGES")) Module["ERRNO_MESSAGES"] = function() { abort("'ERRNO_MESSAGES' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "setErrNo")) Module["setErrNo"] = function() { abort("'setErrNo' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "inetPton4")) Module["inetPton4"] = function() { abort("'inetPton4' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "inetNtop4")) Module["inetNtop4"] = function() { abort("'inetNtop4' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "inetPton6")) Module["inetPton6"] = function() { abort("'inetPton6' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "inetNtop6")) Module["inetNtop6"] = function() { abort("'inetNtop6' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "readSockaddr")) Module["readSockaddr"] = function() { abort("'readSockaddr' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "writeSockaddr")) Module["writeSockaddr"] = function() { abort("'writeSockaddr' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "DNS")) Module["DNS"] = function() { abort("'DNS' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "getHostByName")) Module["getHostByName"] = function() { abort("'getHostByName' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "GAI_ERRNO_MESSAGES")) Module["GAI_ERRNO_MESSAGES"] = function() { abort("'GAI_ERRNO_MESSAGES' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "Protocols")) Module["Protocols"] = function() { abort("'Protocols' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "Sockets")) Module["Sockets"] = function() { abort("'Sockets' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "getRandomDevice")) Module["getRandomDevice"] = function() { abort("'getRandomDevice' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "traverseStack")) Module["traverseStack"] = function() { abort("'traverseStack' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "UNWIND_CACHE")) Module["UNWIND_CACHE"] = function() { abort("'UNWIND_CACHE' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "withBuiltinMalloc")) Module["withBuiltinMalloc"] = function() { abort("'withBuiltinMalloc' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "readAsmConstArgsArray")) Module["readAsmConstArgsArray"] = function() { abort("'readAsmConstArgsArray' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "readAsmConstArgs")) Module["readAsmConstArgs"] = function() { abort("'readAsmConstArgs' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "mainThreadEM_ASM")) Module["mainThreadEM_ASM"] = function() { abort("'mainThreadEM_ASM' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "jstoi_q")) Module["jstoi_q"] = function() { abort("'jstoi_q' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "jstoi_s")) Module["jstoi_s"] = function() { abort("'jstoi_s' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "getExecutableName")) Module["getExecutableName"] = function() { abort("'getExecutableName' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "listenOnce")) Module["listenOnce"] = function() { abort("'listenOnce' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "autoResumeAudioContext")) Module["autoResumeAudioContext"] = function() { abort("'autoResumeAudioContext' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "dynCallLegacy")) Module["dynCallLegacy"] = function() { abort("'dynCallLegacy' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "getDynCaller")) Module["getDynCaller"] = function() { abort("'getDynCaller' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "dynCall")) Module["dynCall"] = function() { abort("'dynCall' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "callRuntimeCallbacks")) Module["callRuntimeCallbacks"] = function() { abort("'callRuntimeCallbacks' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "runtimeKeepaliveCounter")) Module["runtimeKeepaliveCounter"] = function() { abort("'runtimeKeepaliveCounter' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "keepRuntimeAlive")) Module["keepRuntimeAlive"] = function() { abort("'keepRuntimeAlive' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "runtimeKeepalivePush")) Module["runtimeKeepalivePush"] = function() { abort("'runtimeKeepalivePush' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "runtimeKeepalivePop")) Module["runtimeKeepalivePop"] = function() { abort("'runtimeKeepalivePop' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "callUserCallback")) Module["callUserCallback"] = function() { abort("'callUserCallback' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "maybeExit")) Module["maybeExit"] = function() { abort("'maybeExit' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "reallyNegative")) Module["reallyNegative"] = function() { abort("'reallyNegative' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "unSign")) Module["unSign"] = function() { abort("'unSign' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "reSign")) Module["reSign"] = function() { abort("'reSign' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "formatString")) Module["formatString"] = function() { abort("'formatString' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "PATH")) Module["PATH"] = function() { abort("'PATH' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "PATH_FS")) Module["PATH_FS"] = function() { abort("'PATH_FS' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "SYSCALLS")) Module["SYSCALLS"] = function() { abort("'SYSCALLS' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "syscallMmap2")) Module["syscallMmap2"] = function() { abort("'syscallMmap2' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "syscallMunmap")) Module["syscallMunmap"] = function() { abort("'syscallMunmap' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "getSocketFromFD")) Module["getSocketFromFD"] = function() { abort("'getSocketFromFD' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "getSocketAddress")) Module["getSocketAddress"] = function() { abort("'getSocketAddress' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "JSEvents")) Module["JSEvents"] = function() { abort("'JSEvents' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "registerKeyEventCallback")) Module["registerKeyEventCallback"] = function() { abort("'registerKeyEventCallback' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "specialHTMLTargets")) Module["specialHTMLTargets"] = function() { abort("'specialHTMLTargets' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "maybeCStringToJsString")) Module["maybeCStringToJsString"] = function() { abort("'maybeCStringToJsString' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "findEventTarget")) Module["findEventTarget"] = function() { abort("'findEventTarget' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "findCanvasEventTarget")) Module["findCanvasEventTarget"] = function() { abort("'findCanvasEventTarget' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "getBoundingClientRect")) Module["getBoundingClientRect"] = function() { abort("'getBoundingClientRect' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "fillMouseEventData")) Module["fillMouseEventData"] = function() { abort("'fillMouseEventData' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "registerMouseEventCallback")) Module["registerMouseEventCallback"] = function() { abort("'registerMouseEventCallback' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "registerWheelEventCallback")) Module["registerWheelEventCallback"] = function() { abort("'registerWheelEventCallback' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "registerUiEventCallback")) Module["registerUiEventCallback"] = function() { abort("'registerUiEventCallback' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "registerFocusEventCallback")) Module["registerFocusEventCallback"] = function() { abort("'registerFocusEventCallback' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "fillDeviceOrientationEventData")) Module["fillDeviceOrientationEventData"] = function() { abort("'fillDeviceOrientationEventData' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "registerDeviceOrientationEventCallback")) Module["registerDeviceOrientationEventCallback"] = function() { abort("'registerDeviceOrientationEventCallback' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "fillDeviceMotionEventData")) Module["fillDeviceMotionEventData"] = function() { abort("'fillDeviceMotionEventData' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "registerDeviceMotionEventCallback")) Module["registerDeviceMotionEventCallback"] = function() { abort("'registerDeviceMotionEventCallback' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "screenOrientation")) Module["screenOrientation"] = function() { abort("'screenOrientation' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "fillOrientationChangeEventData")) Module["fillOrientationChangeEventData"] = function() { abort("'fillOrientationChangeEventData' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "registerOrientationChangeEventCallback")) Module["registerOrientationChangeEventCallback"] = function() { abort("'registerOrientationChangeEventCallback' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "fillFullscreenChangeEventData")) Module["fillFullscreenChangeEventData"] = function() { abort("'fillFullscreenChangeEventData' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "registerFullscreenChangeEventCallback")) Module["registerFullscreenChangeEventCallback"] = function() { abort("'registerFullscreenChangeEventCallback' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "registerRestoreOldStyle")) Module["registerRestoreOldStyle"] = function() { abort("'registerRestoreOldStyle' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "hideEverythingExceptGivenElement")) Module["hideEverythingExceptGivenElement"] = function() { abort("'hideEverythingExceptGivenElement' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "restoreHiddenElements")) Module["restoreHiddenElements"] = function() { abort("'restoreHiddenElements' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "setLetterbox")) Module["setLetterbox"] = function() { abort("'setLetterbox' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "currentFullscreenStrategy")) Module["currentFullscreenStrategy"] = function() { abort("'currentFullscreenStrategy' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "restoreOldWindowedStyle")) Module["restoreOldWindowedStyle"] = function() { abort("'restoreOldWindowedStyle' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "softFullscreenResizeWebGLRenderTarget")) Module["softFullscreenResizeWebGLRenderTarget"] = function() { abort("'softFullscreenResizeWebGLRenderTarget' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "doRequestFullscreen")) Module["doRequestFullscreen"] = function() { abort("'doRequestFullscreen' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "fillPointerlockChangeEventData")) Module["fillPointerlockChangeEventData"] = function() { abort("'fillPointerlockChangeEventData' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "registerPointerlockChangeEventCallback")) Module["registerPointerlockChangeEventCallback"] = function() { abort("'registerPointerlockChangeEventCallback' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "registerPointerlockErrorEventCallback")) Module["registerPointerlockErrorEventCallback"] = function() { abort("'registerPointerlockErrorEventCallback' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "requestPointerLock")) Module["requestPointerLock"] = function() { abort("'requestPointerLock' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "fillVisibilityChangeEventData")) Module["fillVisibilityChangeEventData"] = function() { abort("'fillVisibilityChangeEventData' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "registerVisibilityChangeEventCallback")) Module["registerVisibilityChangeEventCallback"] = function() { abort("'registerVisibilityChangeEventCallback' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "registerTouchEventCallback")) Module["registerTouchEventCallback"] = function() { abort("'registerTouchEventCallback' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "fillGamepadEventData")) Module["fillGamepadEventData"] = function() { abort("'fillGamepadEventData' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "registerGamepadEventCallback")) Module["registerGamepadEventCallback"] = function() { abort("'registerGamepadEventCallback' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "registerBeforeUnloadEventCallback")) Module["registerBeforeUnloadEventCallback"] = function() { abort("'registerBeforeUnloadEventCallback' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "fillBatteryEventData")) Module["fillBatteryEventData"] = function() { abort("'fillBatteryEventData' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "battery")) Module["battery"] = function() { abort("'battery' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "registerBatteryEventCallback")) Module["registerBatteryEventCallback"] = function() { abort("'registerBatteryEventCallback' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "setCanvasElementSize")) Module["setCanvasElementSize"] = function() { abort("'setCanvasElementSize' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "getCanvasElementSize")) Module["getCanvasElementSize"] = function() { abort("'getCanvasElementSize' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "polyfillSetImmediate")) Module["polyfillSetImmediate"] = function() { abort("'polyfillSetImmediate' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "demangle")) Module["demangle"] = function() { abort("'demangle' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "demangleAll")) Module["demangleAll"] = function() { abort("'demangleAll' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "jsStackTrace")) Module["jsStackTrace"] = function() { abort("'jsStackTrace' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "stackTrace")) Module["stackTrace"] = function() { abort("'stackTrace' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "getEnvStrings")) Module["getEnvStrings"] = function() { abort("'getEnvStrings' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "checkWasiClock")) Module["checkWasiClock"] = function() { abort("'checkWasiClock' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "flush_NO_FILESYSTEM")) Module["flush_NO_FILESYSTEM"] = function() { abort("'flush_NO_FILESYSTEM' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "writeI53ToI64")) Module["writeI53ToI64"] = function() { abort("'writeI53ToI64' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "writeI53ToI64Clamped")) Module["writeI53ToI64Clamped"] = function() { abort("'writeI53ToI64Clamped' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "writeI53ToI64Signaling")) Module["writeI53ToI64Signaling"] = function() { abort("'writeI53ToI64Signaling' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "writeI53ToU64Clamped")) Module["writeI53ToU64Clamped"] = function() { abort("'writeI53ToU64Clamped' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "writeI53ToU64Signaling")) Module["writeI53ToU64Signaling"] = function() { abort("'writeI53ToU64Signaling' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "readI53FromI64")) Module["readI53FromI64"] = function() { abort("'readI53FromI64' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "readI53FromU64")) Module["readI53FromU64"] = function() { abort("'readI53FromU64' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "convertI32PairToI53")) Module["convertI32PairToI53"] = function() { abort("'convertI32PairToI53' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "convertU32PairToI53")) Module["convertU32PairToI53"] = function() { abort("'convertU32PairToI53' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "uncaughtExceptionCount")) Module["uncaughtExceptionCount"] = function() { abort("'uncaughtExceptionCount' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "exceptionLast")) Module["exceptionLast"] = function() { abort("'exceptionLast' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "exceptionCaught")) Module["exceptionCaught"] = function() { abort("'exceptionCaught' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "ExceptionInfoAttrs")) Module["ExceptionInfoAttrs"] = function() { abort("'ExceptionInfoAttrs' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "ExceptionInfo")) Module["ExceptionInfo"] = function() { abort("'ExceptionInfo' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "CatchInfo")) Module["CatchInfo"] = function() { abort("'CatchInfo' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "exception_addRef")) Module["exception_addRef"] = function() { abort("'exception_addRef' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "exception_decRef")) Module["exception_decRef"] = function() { abort("'exception_decRef' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "Browser")) Module["Browser"] = function() { abort("'Browser' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "funcWrappers")) Module["funcWrappers"] = function() { abort("'funcWrappers' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "getFuncWrapper")) Module["getFuncWrapper"] = function() { abort("'getFuncWrapper' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "setMainLoop")) Module["setMainLoop"] = function() { abort("'setMainLoop' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "FS")) Module["FS"] = function() { abort("'FS' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "mmapAlloc")) Module["mmapAlloc"] = function() { abort("'mmapAlloc' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "MEMFS")) Module["MEMFS"] = function() { abort("'MEMFS' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "TTY")) Module["TTY"] = function() { abort("'TTY' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "PIPEFS")) Module["PIPEFS"] = function() { abort("'PIPEFS' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "SOCKFS")) Module["SOCKFS"] = function() { abort("'SOCKFS' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "_setNetworkCallback")) Module["_setNetworkCallback"] = function() { abort("'_setNetworkCallback' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "tempFixedLengthArray")) Module["tempFixedLengthArray"] = function() { abort("'tempFixedLengthArray' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "miniTempWebGLFloatBuffers")) Module["miniTempWebGLFloatBuffers"] = function() { abort("'miniTempWebGLFloatBuffers' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "heapObjectForWebGLType")) Module["heapObjectForWebGLType"] = function() { abort("'heapObjectForWebGLType' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "heapAccessShiftForWebGLHeap")) Module["heapAccessShiftForWebGLHeap"] = function() { abort("'heapAccessShiftForWebGLHeap' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "GL")) Module["GL"] = function() { abort("'GL' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "emscriptenWebGLGet")) Module["emscriptenWebGLGet"] = function() { abort("'emscriptenWebGLGet' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "computeUnpackAlignedImageSize")) Module["computeUnpackAlignedImageSize"] = function() { abort("'computeUnpackAlignedImageSize' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "emscriptenWebGLGetTexPixelData")) Module["emscriptenWebGLGetTexPixelData"] = function() { abort("'emscriptenWebGLGetTexPixelData' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "emscriptenWebGLGetUniform")) Module["emscriptenWebGLGetUniform"] = function() { abort("'emscriptenWebGLGetUniform' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "webglGetUniformLocation")) Module["webglGetUniformLocation"] = function() { abort("'webglGetUniformLocation' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "emscriptenWebGLGetVertexAttrib")) Module["emscriptenWebGLGetVertexAttrib"] = function() { abort("'emscriptenWebGLGetVertexAttrib' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "emscriptenWebGLGetBufferBinding")) Module["emscriptenWebGLGetBufferBinding"] = function() { abort("'emscriptenWebGLGetBufferBinding' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "emscriptenWebGLValidateMapBufferTarget")) Module["emscriptenWebGLValidateMapBufferTarget"] = function() { abort("'emscriptenWebGLValidateMapBufferTarget' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "writeGLArray")) Module["writeGLArray"] = function() { abort("'writeGLArray' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "AL")) Module["AL"] = function() { abort("'AL' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "SDL_unicode")) Module["SDL_unicode"] = function() { abort("'SDL_unicode' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "SDL_ttfContext")) Module["SDL_ttfContext"] = function() { abort("'SDL_ttfContext' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "SDL_audio")) Module["SDL_audio"] = function() { abort("'SDL_audio' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "SDL")) Module["SDL"] = function() { abort("'SDL' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "SDL_gfx")) Module["SDL_gfx"] = function() { abort("'SDL_gfx' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "GLUT")) Module["GLUT"] = function() { abort("'GLUT' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "EGL")) Module["EGL"] = function() { abort("'EGL' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "GLFW_Window")) Module["GLFW_Window"] = function() { abort("'GLFW_Window' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "GLFW")) Module["GLFW"] = function() { abort("'GLFW' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "GLEW")) Module["GLEW"] = function() { abort("'GLEW' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "IDBStore")) Module["IDBStore"] = function() { abort("'IDBStore' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "runAndAbortIfError")) Module["runAndAbortIfError"] = function() { abort("'runAndAbortIfError' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "emscriptenWebGLGetIndexed")) Module["emscriptenWebGLGetIndexed"] = function() { abort("'emscriptenWebGLGetIndexed' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "warnOnce")) Module["warnOnce"] = function() { abort("'warnOnce' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "stackSave")) Module["stackSave"] = function() { abort("'stackSave' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "stackRestore")) Module["stackRestore"] = function() { abort("'stackRestore' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "stackAlloc")) Module["stackAlloc"] = function() { abort("'stackAlloc' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "AsciiToString")) Module["AsciiToString"] = function() { abort("'AsciiToString' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "stringToAscii")) Module["stringToAscii"] = function() { abort("'stringToAscii' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "UTF16ToString")) Module["UTF16ToString"] = function() { abort("'UTF16ToString' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "stringToUTF16")) Module["stringToUTF16"] = function() { abort("'stringToUTF16' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "lengthBytesUTF16")) Module["lengthBytesUTF16"] = function() { abort("'lengthBytesUTF16' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "UTF32ToString")) Module["UTF32ToString"] = function() { abort("'UTF32ToString' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "stringToUTF32")) Module["stringToUTF32"] = function() { abort("'stringToUTF32' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "lengthBytesUTF32")) Module["lengthBytesUTF32"] = function() { abort("'lengthBytesUTF32' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "allocateUTF8")) Module["allocateUTF8"] = function() { abort("'allocateUTF8' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +if (!Object.getOwnPropertyDescriptor(Module, "allocateUTF8OnStack")) Module["allocateUTF8OnStack"] = function() { abort("'allocateUTF8OnStack' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") }; +Module["writeStackCookie"] = writeStackCookie; +Module["checkStackCookie"] = checkStackCookie; +if (!Object.getOwnPropertyDescriptor(Module, "ALLOC_NORMAL")) Object.defineProperty(Module, "ALLOC_NORMAL", { configurable: true, get: function() { abort("'ALLOC_NORMAL' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") } }); +if (!Object.getOwnPropertyDescriptor(Module, "ALLOC_STACK")) Object.defineProperty(Module, "ALLOC_STACK", { configurable: true, get: function() { abort("'ALLOC_STACK' was not exported. add it to EXTRA_EXPORTED_RUNTIME_METHODS (see the FAQ)") } }); + +var calledRun; + +/** + * @constructor + * @this {ExitStatus} + */ +function ExitStatus(status) { + this.name = "ExitStatus"; + this.message = "Program terminated with exit(" + status + ")"; + this.status = status; +} + +var calledMain = false; + +dependenciesFulfilled = function runCaller() { + // If run has never been called, and we should call run (INVOKE_RUN is true, and Module.noInitialRun is not false) + if (!calledRun) run(); + if (!calledRun) dependenciesFulfilled = runCaller; // try this again later, after new deps are fulfilled +}; + +function callMain(args) { + assert(runDependencies == 0, 'cannot call main when async dependencies remain! (listen on Module["onRuntimeInitialized"])'); + assert(__ATPRERUN__.length == 0, 'cannot call main when preRun functions remain to be called'); + + var entryFunction = Module['_main']; + + args = args || []; + + var argc = args.length+1; + var argv = stackAlloc((argc + 1) * 4); + HEAP32[argv >> 2] = allocateUTF8OnStack(thisProgram); + for (var i = 1; i < argc; i++) { + HEAP32[(argv >> 2) + i] = allocateUTF8OnStack(args[i - 1]); + } + HEAP32[(argv >> 2) + argc] = 0; + + try { + + var ret = entryFunction(argc, argv); + + // In PROXY_TO_PTHREAD builds, we should never exit the runtime below, as + // execution is asynchronously handed off to a pthread. + // if we're not running an evented main loop, it's time to exit + exit(ret, /* implicit = */ true); + } + catch(e) { + if (e instanceof ExitStatus) { + // exit() throws this once it's done to make sure execution + // has been stopped completely + return; + } else if (e == 'unwind') { + // running an evented main loop, don't immediately exit + return; + } else { + var toLog = e; + if (e && typeof e === 'object' && e.stack) { + toLog = [e, e.stack]; + } + err('exception thrown: ' + toLog); + quit_(1, e); + } + } finally { + calledMain = true; + + } +} + +function stackCheckInit() { + // This is normally called automatically during __wasm_call_ctors but need to + // get these values before even running any of the ctors so we call it redundantly + // here. + // TODO(sbc): Move writeStackCookie to native to to avoid this. + _emscripten_stack_init(); + writeStackCookie(); +} + +/** @type {function(Array=)} */ +function run(args) { + args = args || arguments_; + + if (runDependencies > 0) { + return; + } + + stackCheckInit(); + + preRun(); + + // a preRun added a dependency, run will be called later + if (runDependencies > 0) { + return; + } + + function doRun() { + // run may have just been called through dependencies being fulfilled just in this very frame, + // or while the async setStatus time below was happening + if (calledRun) return; + calledRun = true; + Module['calledRun'] = true; + + if (ABORT) return; + + initRuntime(); + + preMain(); + + if (Module['onRuntimeInitialized']) Module['onRuntimeInitialized'](); + + if (shouldRunNow) callMain(args); + + postRun(); + } + + if (Module['setStatus']) { + Module['setStatus']('Running...'); + setTimeout(function() { + setTimeout(function() { + Module['setStatus'](''); + }, 1); + doRun(); + }, 1); + } else + { + doRun(); + } + checkStackCookie(); +} +Module['run'] = run; + +function checkUnflushedContent() { + // Compiler settings do not allow exiting the runtime, so flushing + // the streams is not possible. but in ASSERTIONS mode we check + // if there was something to flush, and if so tell the user they + // should request that the runtime be exitable. + // Normally we would not even include flush() at all, but in ASSERTIONS + // builds we do so just for this check, and here we see if there is any + // content to flush, that is, we check if there would have been + // something a non-ASSERTIONS build would have not seen. + // How we flush the streams depends on whether we are in SYSCALLS_REQUIRE_FILESYSTEM=0 + // mode (which has its own special function for this; otherwise, all + // the code is inside libc) + var oldOut = out; + var oldErr = err; + var has = false; + out = err = function(x) { + has = true; + } + try { // it doesn't matter if it fails + var flush = flush_NO_FILESYSTEM; + if (flush) flush(); + } catch(e) {} + out = oldOut; + err = oldErr; + if (has) { + warnOnce('stdio streams had content in them that was not flushed. you should set EXIT_RUNTIME to 1 (see the FAQ), or make sure to emit a newline when you printf etc.'); + warnOnce('(this may also be due to not including full filesystem support - try building with -s FORCE_FILESYSTEM=1)'); + } +} + +/** @param {boolean|number=} implicit */ +function exit(status, implicit) { + EXITSTATUS = status; + + checkUnflushedContent(); + + // if this is just main exit-ing implicitly, and the status is 0, then we + // don't need to do anything here and can just leave. if the status is + // non-zero, though, then we need to report it. + // (we may have warned about this earlier, if a situation justifies doing so) + if (implicit && keepRuntimeAlive() && status === 0) { + return; + } + + if (keepRuntimeAlive()) { + // if exit() was called, we may warn the user if the runtime isn't actually being shut down + if (!implicit) { + var msg = 'program exited (with status: ' + status + '), but EXIT_RUNTIME is not set, so halting execution but not exiting the runtime or preventing further async execution (build with EXIT_RUNTIME=1, if you want a true shutdown)'; + err(msg); + } + } else { + + exitRuntime(); + + if (Module['onExit']) Module['onExit'](status); + + ABORT = true; + } + + quit_(status, new ExitStatus(status)); +} + +if (Module['preInit']) { + if (typeof Module['preInit'] == 'function') Module['preInit'] = [Module['preInit']]; + while (Module['preInit'].length > 0) { + Module['preInit'].pop()(); + } +} + +// shouldRunNow refers to calling main(), not run(). +var shouldRunNow = true; + +if (Module['noInitialRun']) shouldRunNow = false; + +run(); + + + + + diff --git a/2d/rigidbody/rigidbody_1/dist/output.wasm b/2d/rigidbody/rigidbody_1/dist/output.wasm new file mode 100755 index 0000000..2a9924f Binary files /dev/null and b/2d/rigidbody/rigidbody_1/dist/output.wasm differ diff --git a/2d/rigidbody/rigidbody_1/main.cpp b/2d/rigidbody/rigidbody_1/main.cpp new file mode 100644 index 0000000..26d24e2 --- /dev/null +++ b/2d/rigidbody/rigidbody_1/main.cpp @@ -0,0 +1,158 @@ +#include "../../../shared_cpp/OrthographicRenderer.h" +#include "../../../shared_cpp/types.h" +#include "../../../shared_cpp/WebglContext.h" +#include "../../../shared_cpp/mathlib.h" +#include "../../../shared_cpp/MainLoop.h" +#include +#include +#include +#include +#include +#include +#include + +struct Rigidbody { + Vector2 force = { 0, 0 }; + Vector2 velocity = { 0, 0 }; + Vector2 position = { 0, 0 }; + float32 mass = 1.f; + + void reset() { + force = { 0, 0 }; + velocity = { 0, 0 }; + } + + void applyForce(Vector2 f) { + force += f; + } + + void applyGravity(float32 deltaTimeSeconds) { + velocity += (Vector2 { 0.f, -50.f } * deltaTimeSeconds); + } + + void update(float32 deltaTimeSeconds) { + applyGravity(deltaTimeSeconds); + + Vector2 acceleration = force / mass; + velocity += (acceleration * deltaTimeSeconds); + position += (velocity * deltaTimeSeconds); + force = Vector2 { 0.f, 0.f }; + } +}; + +struct Rectangle { + OrthographicShape shape; + Rigidbody body; + + void load(OrthographicRenderer* renderer, Vector4 color, float32 width, float32 height) { + color = color.toNormalizedColor(); + + float32 halfWidth = width / 2.f; + float32 halfHeight = height / 2.f; + + OrthographicVertex vertices[6]; + vertices[0].position = Vector2 { -halfWidth, -halfHeight }; + vertices[1].position = Vector2 { -halfWidth, halfHeight }; + vertices[2].position = Vector2 { halfWidth, halfHeight }; + vertices[3].position = Vector2 { -halfWidth, -halfHeight }; + vertices[4].position = Vector2 { halfWidth, -halfHeight }; + vertices[5].position = Vector2 { halfWidth, halfHeight }; + + for (int32 i = 0; i < 6; i++) { + vertices[i].color = color; + } + + shape.load(vertices, 6, renderer); + body.reset(); + } + + void update(float32 dtSeconds) { + body.update(dtSeconds); + shape.model = Mat4x4().translateByVec2(body.position); + } + + void render(OrthographicRenderer* renderer) { + shape.render(renderer); + } + + void unload() { + shape.unload(); + } +}; + +EM_BOOL onPlayClicked(int eventType, const EmscriptenMouseEvent* mouseEvent, void* userData); +EM_BOOL onStopClicked(int eventType, const EmscriptenMouseEvent* mouseEvent, void* userData); + +void load(); +void update(float32 time, void* userData); +void unload(); + +WebglContext context; +OrthographicRenderer renderer; +MainLoop mainLoop; +Rectangle rectangle; + +int main() { + context.init("#gl_canvas"); + emscripten_set_click_callback("#gl_canvas_play", NULL, false, onPlayClicked); + emscripten_set_click_callback("#gl_canvas_stop", NULL, false, onStopClicked); + return 0; +} + +void load() { + renderer.load(&context); + + rectangle.load(&renderer, Vector4 { 55.f, 235.f, 35.f, 255.f }, 32.f, 32.f); + rectangle.body.position = Vector2 { context.width / 3.f, context.height / 3.f }; + rectangle.body.velocity = Vector2 { 100.f, 250.f }; + + mainLoop.run(update); +} + +void update(float32 deltaTimeSeconds, void* userData) { + rectangle.update(deltaTimeSeconds); + + // Check collisions with walls so we don't go out of the scene. Simply reflect here. + if (rectangle.body.position.x <= 0.f) { + rectangle.body.position.x = 0.f; + rectangle.body.velocity = rectangle.body.velocity - Vector2 { 1.f, 0.f } * (2 * (rectangle.body.velocity.dot(Vector2 { 1.f, 0.f }))); + } + if (rectangle.body.position.y <= 0.f) { + rectangle.body.position.y = 0.f; + rectangle.body.velocity = rectangle.body.velocity - Vector2 { 0.f, 1.f } * (2 * (rectangle.body.velocity.dot(Vector2 { 0.f, 1.f }))); + } + if (rectangle.body.position.x >= 640.f) { + rectangle.body.position.x = 640.f; + rectangle.body.velocity = rectangle.body.velocity - Vector2 { -1.f, 0.f } * (2 * (rectangle.body.velocity.dot(Vector2{ -1.f, 0.f }))); + } + if (rectangle.body.position.y >= 480.f) { + rectangle.body.position.y = 480.f; + rectangle.body.velocity = rectangle.body.velocity - Vector2 { 0.f, -1.f } * (2 * (rectangle.body.velocity.dot(Vector2 { 0.f, -1.f }))) ; + } + + // Renderer + renderer.render(); + rectangle.render(&renderer); +} + +void unload() { + mainLoop.stop(); + renderer.unload(); + rectangle.unload(); +} + +// +// Interactions with DOM handled below +// +EM_BOOL onPlayClicked(int eventType, const EmscriptenMouseEvent* mouseEvent, void* userData) { + printf("Play clicked\n"); + + load(); + return true; +} + +EM_BOOL onStopClicked(int eventType, const EmscriptenMouseEvent* mouseEvent, void* userData) { + printf("Stop clicked\n"); + unload(); + return true; +} diff --git a/index.html b/index.html index 4a0985a..d83a7b7 100644 --- a/index.html +++ b/index.html @@ -18,9 +18,7 @@ 🏀2D

Rigidbody
Linear Forces
Rotational Forces
Collision Forces
Linear Forces
Collisions
Circle-Line
Rectangle-Line

🏀2D

Rigidbody
Linear Forces
Rotational Forces
Collision Forces
Linear Forces
Collisions
Circle-Line
Rectangle-Line