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#include <stdio.h>
#include <EGL/egl.h>
int result = 1; // Success
#define assert(x) do { if (!(x)) {result = 0; printf("Assertion failure: %s in %s:%d!\n", #x, __FILE__, __LINE__); } } while(0)
int main(int argc, char *argv[])
{
EGLDisplay display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
assert(display != EGL_NO_DISPLAY);
assert(eglGetError() == EGL_SUCCESS);
EGLint major = 0, minor = 0;
EGLBoolean ret = eglInitialize(display, &major, &minor);
assert(eglGetError() == EGL_SUCCESS);
assert(ret == EGL_TRUE);
assert(major * 10000 + minor >= 10004);
EGLint numConfigs;
ret = eglGetConfigs(display, NULL, 0, &numConfigs);
assert(eglGetError() == EGL_SUCCESS);
assert(ret == EGL_TRUE);
EGLint attribs[] = {
EGL_RED_SIZE, 5,
EGL_GREEN_SIZE, 6,
EGL_BLUE_SIZE, 5,
EGL_NONE
};
EGLConfig config;
ret = eglChooseConfig(display, attribs, &config, 1, &numConfigs);
assert(eglGetError() == EGL_SUCCESS);
assert(ret == EGL_TRUE);
EGLNativeWindowType dummyWindow;
EGLSurface surface = eglCreateWindowSurface(display, config, dummyWindow, NULL);
assert(eglGetError() == EGL_SUCCESS);
assert(surface != 0);
// WebGL maps to GLES2. GLES1 is not supported.
EGLint contextAttribsOld[] =
{
EGL_CONTEXT_CLIENT_VERSION, 1,
EGL_NONE
};
EGLContext context = eglCreateContext(display, config, NULL, contextAttribsOld);
assert(eglGetError() != EGL_SUCCESS);
EGLint contextAttribs[] =
{
EGL_CONTEXT_CLIENT_VERSION, 2,
EGL_NONE
};
context = eglCreateContext(display, config, NULL, contextAttribs);
assert(eglGetError() == EGL_SUCCESS);
assert(context != 0);
assert(eglGetCurrentContext() == 0); // Creating a context does not yet activate it.
assert(eglGetError() == EGL_SUCCESS);
ret = eglMakeCurrent(display, surface, surface, context);
assert(eglGetError() == EGL_SUCCESS);
assert(ret == EGL_TRUE);
assert(eglGetCurrentContext() == context);
assert(eglGetCurrentSurface(EGL_READ) == surface);
assert(eglGetCurrentSurface(EGL_DRAW) == surface);
ret = eglMakeCurrent(display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
assert(eglGetError() == EGL_SUCCESS);
assert(ret == EGL_TRUE);
assert(eglGetCurrentContext() == EGL_NO_CONTEXT);
assert(eglGetCurrentSurface(EGL_READ) == EGL_NO_SURFACE);
assert(eglGetCurrentSurface(EGL_DRAW) == EGL_NO_SURFACE);
ret = eglTerminate(display);
assert(eglGetError() == EGL_SUCCESS);
assert(ret == EGL_TRUE);
#ifdef REPORT_RESULT
REPORT_RESULT();
#endif
}
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