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#include "WebglContext.h"
#include <cstdio>
EM_BOOL onResize(int eventType, const EmscriptenUiEvent *uiEvent, void *userData) {
WebglContext* context = (WebglContext*)userData;
f64 inWidth, inHeight;
emscripten_get_element_css_size(context->query, &inWidth, &inHeight);
context->width = static_cast<f32>(inWidth);
context->height = static_cast<f32>(inHeight);
return true;
}
void WebglContext::init(const char* inQuery) {
strcpy(query, inQuery);
f64 inWidth, inHeight;
emscripten_get_element_css_size(query, &inWidth, &inHeight);
width = static_cast<f32>(inWidth);
height = static_cast<f32>(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, 0, 0, 0.0f);
emscripten_set_resize_callback(EMSCRIPTEN_EVENT_TARGET_WINDOW, this, false, onResize);
};
void WebglContext::makeCurrentContext() {
emscripten_webgl_make_context_current(context);
};
void WebglContext::destroy() {
emscripten_webgl_destroy_context(context);
}
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