emscripten/tests/webgl2.cpp

46 строки
1.1 KiB
C++

#include <GLES3/gl3.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include <emscripten.h>
#include <html5.h>
EMSCRIPTEN_WEBGL_CONTEXT_HANDLE context;
int main()
{
EmscriptenWebGLContextAttributes attrs;
emscripten_webgl_init_context_attributes(&attrs);
attrs.majorVersion = 2;
attrs.minorVersion = 0;
int result = 0;
EMSCRIPTEN_WEBGL_CONTEXT_HANDLE context = emscripten_webgl_create_context(0, &attrs);
if (context)
{
EMSCRIPTEN_RESULT res = emscripten_webgl_make_context_current(context);
assert(res == EMSCRIPTEN_RESULT_SUCCESS);
assert(emscripten_webgl_get_current_context() == context);
int numExtensions = 0;
glGetIntegerv(GL_NUM_EXTENSIONS, &numExtensions);
bool hasGLExtension = false;
for(int i = 0; i < numExtensions; ++i)
{
const char *ext = (const char *)glGetStringi(GL_EXTENSIONS, i);
printf("extension %d: %s\n", i, ext);
if (strstr(ext, "GL_") == 0)
hasGLExtension = true;
}
if (!hasGLExtension)
result = 1;
}
#ifdef REPORT_RESULT
REPORT_RESULT();
#endif
return 0;
}