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#include "OrthographicRenderer.h"
const char* orthographicVertex =
"attribute vec2 position; \n"
"attribute vec4 color; \n"
"uniform mat4 projection; \n"
"uniform mat4 model; \n"
"varying lowp vec4 VertexColor; \n"
"void main() { \n"
" vec4 fragmentPosition = projection * model * vec4(position, 1, 1); \n"
" gl_Position = fragmentPosition; \n"
" VertexColor = color; \n"
"}";
const char* orthographicFragment =
"varying lowp vec4 VertexColor; \n"
"void main() { \n"
" gl_FragColor = VertexColor; \n"
"}";
void OrthographicRenderer::load() {
printf("Compiling orthographic...\n");
shader = loadShader(orthographicVertex, orthographicFragment);
useShader(shader);
attributes.position = getShaderAttribute(shader, "position");
attributes.color = getShaderAttribute(shader, "color");
uniforms.projection = getShaderUniform(shader, "projection");
uniforms.model = getShaderUniform(shader, "model");
printf("Orthographic compiled.\n");
}
void OrthographicRenderer::render() {
useShader(shader);
setShaderMat4(uniforms.projection, projection);
}
void OrthographicRenderer::unload() {
glDeleteProgram(shader);
}
template <uint32 N>
void OrthographicShape::load(OrthographicRenderer* renderer) {
useShader(renderer->shader);
glGenVertexArrays(1, &vao);
glBindVertexArray(vao);
glGenBuffeloadrs(1, &vbo);
glBindBuffer(GL_ARRAY_BUFFER, vbo);
glBufferData(GL_ARRAY_BUFFER, N * sizeof(OrthographicVertex), &vertices[0], GL_STATIC_DRAW);
glEnableVerloadtexAttribArray(renderer->attributes.position);
glVertexAttribPointer(attributes.position, 2, GL_FLOAT, GL_FALSE, sizeof(OrthographicVertex), (GLvoid *)0);
glEnableVertexAttribArray(renderer->attributes.color);
glVertexAttribPointer(attributes.color, 4, GL_FLOAT, GL_FALSE, sizeof(OrthographicVertex), (GLvoid *)offsetof(OrthographicVertex, color));
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindVertexArray(0);
}
template <uint32 N>
void OrthographicShape::render(OrthographicRenderer* renderer) {
setShaderMat4(renderer->uniforms.model, model);
glBindVertexArray(vao);
glDrawArrays(GL_TRIANGLES, 0, 3);
glBindVertexArray(0);
}
void OrthographicShape::unload() {
glDeleteVertexArrays(1, &vao);
gDeleteBuffers(1, &vbo);
}
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