diff options
author | Matthew Kosarek <mattkae@protonmail.com> | 2021-05-16 19:50:15 -0400 |
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committer | Matthew Kosarek <mattkae@protonmail.com> | 2021-05-16 19:50:15 -0400 |
commit | a00c0aab1eb5a7a55bef8ca08115bdd722ab5699 (patch) | |
tree | 45b5c4cc8c380d0630a8e0185af7229f26dc754a /shared_cpp/WebglContext.h | |
parent | 4941a1874b6ca9d142d94df70b2aec5e0b35b94e (diff) |
Moved the frontend directory up so that it no longer exists
Diffstat (limited to 'shared_cpp/WebglContext.h')
-rw-r--r-- | shared_cpp/WebglContext.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/shared_cpp/WebglContext.h b/shared_cpp/WebglContext.h new file mode 100644 index 0000000..017498f --- /dev/null +++ b/shared_cpp/WebglContext.h @@ -0,0 +1,39 @@ +#pragma once +#include "types.h" +#include <emscripten.h> +#include <emscripten/html5.h> +#include <GLES2/gl2.h> +#include <EGL/egl.h> + +struct WebglContext { + EMSCRIPTEN_WEBGL_CONTEXT_HANDLE context; + int width = 640; + int height = 480; + + void init(const char* query, int inWidth = 640, int inHeight = 480) { + width = inWidth; + height = inHeight; + emscripten_set_canvas_element_size( query, width, height); + + EmscriptenWebGLContextAttributes attrs; + emscripten_webgl_init_context_attributes(&attrs); + + attrs.enableExtensionsByDefault = 1; + attrs.majorVersion = 3; + attrs.minorVersion = 0; + + context = emscripten_webgl_create_context(query, &attrs); + makeCurrentContext(); + + glClearColor(0.2f, 0.3f, 0.3f, 1.0f); + glClear(GL_COLOR_BUFFER_BIT); + }; + + void makeCurrentContext() { + emscripten_webgl_make_context_current(context); + }; + + void destroy() { + emscripten_webgl_destroy_context(context); + } +};
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