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/*
* Copyright 2013 The Emscripten Authors. All rights reserved.
* Emscripten is available under two separate licenses, the MIT license and the
* University of Illinois/NCSA Open Source License. Both these licenses can be
* found in the LICENSE file.
*/
#include <GLES2/gl2.h>
#include <EGL/egl.h>
#include <stdio.h>
#include <stdlib.h>
static void die(const char *msg) {
printf("%s\n", msg);
abort();
}
static void create_context(void) {
EGLint num_config;
EGLContext g_egl_ctx;
EGLDisplay g_egl_dpy;
EGLConfig g_config;
static const EGLint attribute_list[] = {
EGL_RED_SIZE, 8,
EGL_GREEN_SIZE, 8,
EGL_BLUE_SIZE, 8,
EGL_ALPHA_SIZE, 8,
EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
EGL_NONE
};
static const EGLint context_attributes[] = {
EGL_CONTEXT_CLIENT_VERSION, 2,
EGL_NONE
};
g_egl_dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY);
if (!g_egl_dpy)
die("failed to create display");
if (!eglInitialize(g_egl_dpy, NULL, NULL))
die("failed to initialize egl");
if (!eglChooseConfig(g_egl_dpy, attribute_list, &g_config, 1, &num_config))
die("failed to choose config");
g_egl_ctx = eglCreateContext(g_egl_dpy, g_config, EGL_NO_CONTEXT, context_attributes);
if (!g_egl_ctx)
die("failed to create context");
EGLNativeWindowType dummyWindow;
EGLSurface surface = eglCreateWindowSurface(g_egl_dpy, g_config, dummyWindow, NULL);
if (!surface)
die("failed to create window surface");
if (!eglMakeCurrent(g_egl_dpy, surface, surface, g_egl_ctx))
die("failed to activate context");
}
int main(int argc, char *argv[]) {
unsigned i;
create_context();
GLuint prog = glCreateProgram();
if (glGetError())
die("failed to create program");
GLuint vertex = glCreateShader(GL_VERTEX_SHADER);
if (glGetError())
die("failed to create vertex shader");
glAttachShader(prog, vertex);
GLuint fragment = glCreateShader(GL_FRAGMENT_SHADER);
if (glGetError())
die("failed to create fragment shader");
glAttachShader(prog, fragment);
GLuint shaders[2];
GLsizei count;
glGetAttachedShaders(prog, 2, &count, shaders);
if (glGetError())
die("failed to get attached shaders");
if (count != 2)
die("unknown number of shaders returned");
if (shaders[0] == shaders[1])
die("returned identical shaders");
for (i = 0; i < count; i++) {
if (shaders[i] == 0)
die("returned 0");
if (shaders[i] != vertex && shaders[i] != fragment)
die("unknown shader returned");
}
REPORT_RESULT(1);
return 0;
}
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