blob: 366c675a658855437009beeb1cf8e21462efd40c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
|
#pragma once
#include "types.h"
#include <emscripten.h>
#include <emscripten/html5.h>
#include <GLES2/gl2.h>
#include <EGL/egl.h>
EM_BOOL onScreenSizeChanged(int eventType, const EmscriptenUiEvent *uiEvent, void *userData);
struct WebglContext {
EMSCRIPTEN_WEBGL_CONTEXT_HANDLE context;
int width = 800;
int height = 600;
void init(const char* query, int inWidth = 800, int inHeight = 600) {
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, 0, 0, 0.0f);
emscripten_set_resize_callback(query, this, false, onScreenSizeChanged);
};
void makeCurrentContext() {
emscripten_webgl_make_context_current(context);
};
void destroy() {
emscripten_webgl_destroy_context(context);
}
};
|