static void
Render()
{
static float color[8][3] = {
{1.0, 1.0, 0.0},
{1.0, 0.0, 0.0},
{0.0, 0.0, 0.0},
{0.0, 1.0, 0.0},
{0.0, 1.0, 1.0},
{1.0, 1.0, 1.0},
{1.0, 0.0, 1.0},
{0.0, 0.0, 1.0}
};
static float cube[8][3] = {
{0.5, 0.5, -0.5},
{0.5, -0.5, -0.5},
{-0.5, -0.5, -0.5},
{-0.5, 0.5, -0.5},
{-0.5, 0.5, 0.5},
{0.5, 0.5, 0.5},
{0.5, -0.5, 0.5},
{-0.5, -0.5, 0.5}
};
/* Do our drawing, too. */
ctx.glClearColor(0.0, 0.0, 0.0, 1.0);
ctx.glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
ctx.glBegin(GL_QUADS);
#ifdef SHADED_CUBE
ctx.glColor3fv(color[0]);
ctx.glVertex3fv(cube[0]);
ctx.glColor3fv(color[1]);
ctx.glVertex3fv(cube[1]);
ctx.glColor3fv(color[2]);
ctx.glVertex3fv(cube[2]);
ctx.glColor3fv(color[3]);
ctx.glVertex3fv(cube[3]);
ctx.glColor3fv(color[3]);
ctx.glVertex3fv(cube[3]);
ctx.glColor3fv(color[4]);
ctx.glVertex3fv(cube[4]);
ctx.glColor3fv(color[7]);
ctx.glVertex3fv(cube[7]);
ctx.glColor3fv(color[2]);
ctx.glVertex3fv(cube[2]);
ctx.glColor3fv(color[0]);
ctx.glVertex3fv(cube[0]);
ctx.glColor3fv(color[5]);
ctx.glVertex3fv(cube[5]);
ctx.glColor3fv(color[6]);
ctx.glVertex3fv(cube[6]);
ctx.glColor3fv(color[1]);
ctx.glVertex3fv(cube[1]);
ctx.glColor3fv(color[5]);
ctx.glVertex3fv(cube[5]);
ctx.glColor3fv(color[4]);
ctx.glVertex3fv(cube[4]);
ctx.glColor3fv(color[7]);
ctx.glVertex3fv(cube[7]);
ctx.glColor3fv(color[6]);
ctx.glVertex3fv(cube[6]);
ctx.glColor3fv(color[5]);
ctx.glVertex3fv(cube[5]);
ctx.glColor3fv(color[0]);
ctx.glVertex3fv(cube[0]);
ctx.glColor3fv(color[3]);
ctx.glVertex3fv(cube[3]);
ctx.glColor3fv(color[4]);
ctx.glVertex3fv(cube[4]);
ctx.glColor3fv(color[6]);
ctx.glVertex3fv(cube[6]);
ctx.glColor3fv(color[1]);
ctx.glVertex3fv(cube[1]);
ctx.glColor3fv(color[2]);
ctx.glVertex3fv(cube[2]);
ctx.glColor3fv(color[7]);
ctx.glVertex3fv(cube[7]);
#else /* flat cube */
ctx.glColor3f(1.0, 0.0, 0.0);
ctx.glVertex3fv(cube[0]);
ctx.glVertex3fv(cube[1]);
ctx.glVertex3fv(cube[2]);
ctx.glVertex3fv(cube[3]);
ctx.glColor3f(0.0, 1.0, 0.0);
ctx.glVertex3fv(cube[3]);
ctx.glVertex3fv(cube[4]);
ctx.glVertex3fv(cube[7]);
ctx.glVertex3fv(cube[2]);
ctx.glColor3f(0.0, 0.0, 1.0);
ctx.glVertex3fv(cube[0]);
ctx.glVertex3fv(cube[5]);
ctx.glVertex3fv(cube[6]);
ctx.glVertex3fv(cube[1]);
ctx.glColor3f(0.0, 1.0, 1.0);
ctx.glVertex3fv(cube[5]);
ctx.glVertex3fv(cube[4]);
ctx.glVertex3fv(cube[7]);
ctx.glVertex3fv(cube[6]);
ctx.glColor3f(1.0, 1.0, 0.0);
ctx.glVertex3fv(cube[5]);
ctx.glVertex3fv(cube[0]);
ctx.glVertex3fv(cube[3]);
ctx.glVertex3fv(cube[4]);
ctx.glColor3f(1.0, 0.0, 1.0);
ctx.glVertex3fv(cube[6]);
ctx.glVertex3fv(cube[1]);
ctx.glVertex3fv(cube[2]);
ctx.glVertex3fv(cube[7]);
#endif /* SHADED_CUBE */
ctx.glEnd();
ctx.glMatrixMode(GL_MODELVIEW);
ctx.glRotatef(5.0, 1.0, 1.0, 1.0);
}
int
main(int argc, char *argv[])
{
int fsaa, accel;
int value;
int i, done;
SDL_DisplayMode mode;
SDL_Event event;
Uint32 then, now, frames;
int status;
int dw, dh;
/* Enable standard application logging */
SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);
/* Initialize parameters */
fsaa = 0;
accel = -1;
/* Initialize test framework */
state = SDLTest_CommonCreateState(argv, SDL_INIT_VIDEO);
if (!state) {
return 1;
}
for (i = 1; i < argc;) {
int consumed;
consumed = SDLTest_CommonArg(state, i);
if (consumed == 0) {
if (SDL_strcasecmp(argv[i], "--fsaa") == 0 && i+1 < argc) {
fsaa = atoi(argv[i+1]);
consumed = 2;
} else if (SDL_strcasecmp(argv[i], "--accel") == 0 && i+1 < argc) {
accel = atoi(argv[i+1]);
consumed = 2;
} else {
consumed = -1;
}
}
if (consumed < 0) {
SDL_Log("Usage: %s %s [--fsaa n] [--accel n]\n", argv[0],
SDLTest_CommonUsage(state));
quit(1);
}
i += consumed;
}
/* Set OpenGL parameters */
state->window_flags |= SDL_WINDOW_OPENGL;
state->gl_red_size = 5;
state->gl_green_size = 5;
state->gl_blue_size = 5;
state->gl_depth_size = 16;
state->gl_double_buffer = 1;
if (fsaa) {
state->gl_multisamplebuffers = 1;
state->gl_multisamplesamples = fsaa;
}
if (accel >= 0) {
state->gl_accelerated = accel;
}
if (!SDLTest_CommonInit(state)) {
quit(2);
}
/* Create OpenGL context */
context = SDL_GL_CreateContext(state->windows[0]);
if (!context) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "SDL_GL_CreateContext(): %s\n", SDL_GetError());
quit(2);
}
/* Important: call this *after* creating the context */
if (LoadContext(&ctx) < 0) {
SDL_Log("Could not load GL functions\n");
quit(2);
return 0;
}
if (state->render_flags & SDL_RENDERER_PRESENTVSYNC) {
/* try late-swap-tearing first. If not supported, try normal vsync. */
if (SDL_GL_SetSwapInterval(-1) == -1) {
SDL_GL_SetSwapInterval(1);
}
} else {
SDL_GL_SetSwapInterval(0); /* disable vsync. */
}
SDL_GetCurrentDisplayMode(0, &mode);
SDL_Log("Screen BPP : %d\n", SDL_BITSPERPIXEL(mode.format));
SDL_Log("Swap Interval : %d\n", SDL_GL_GetSwapInterval());
SDL_GetWindowSize(state->windows[0], &dw, &dh);
SDL_Log("Window Size : %d,%d\n", dw, dh);
SDL_GL_GetDrawableSize(state->windows[0], &dw, &dh);
SDL_Log("Draw Size : %d,%d\n", dw, dh);
SDL_Log("\n");
SDL_Log("Vendor : %s\n", ctx.glGetString(GL_VENDOR));
SDL_Log("Renderer : %s\n", ctx.glGetString(GL_RENDERER));
SDL_Log("Version : %s\n", ctx.glGetString(GL_VERSION));
SDL_Log("Extensions : %s\n", ctx.glGetString(GL_EXTENSIONS));
SDL_Log("\n");
status = SDL_GL_GetAttribute(SDL_GL_RED_SIZE, &value);
if (!status) {
SDL_Log("SDL_GL_RED_SIZE: requested %d, got %d\n", 5, value);
} else {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Failed to get SDL_GL_RED_SIZE: %s\n", SDL_GetError());
}
status = SDL_GL_GetAttribute(SDL_GL_GREEN_SIZE, &value);
if (!status) {
SDL_Log("SDL_GL_GREEN_SIZE: requested %d, got %d\n", 5, value);
} else {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Failed to get SDL_GL_GREEN_SIZE: %s\n", SDL_GetError());
}
status = SDL_GL_GetAttribute(SDL_GL_BLUE_SIZE, &value);
if (!status) {
SDL_Log("SDL_GL_BLUE_SIZE: requested %d, got %d\n", 5, value);
} else {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Failed to get SDL_GL_BLUE_SIZE: %s\n", SDL_GetError());
}
status = SDL_GL_GetAttribute(SDL_GL_DEPTH_SIZE, &value);
if (!status) {
SDL_Log("SDL_GL_DEPTH_SIZE: requested %d, got %d\n", 16, value);
} else {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Failed to get SDL_GL_DEPTH_SIZE: %s\n", SDL_GetError());
}
if (fsaa) {
status = SDL_GL_GetAttribute(SDL_GL_MULTISAMPLEBUFFERS, &value);
if (!status) {
SDL_Log("SDL_GL_MULTISAMPLEBUFFERS: requested 1, got %d\n", value);
} else {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Failed to get SDL_GL_MULTISAMPLEBUFFERS: %s\n",
SDL_GetError());
}
status = SDL_GL_GetAttribute(SDL_GL_MULTISAMPLESAMPLES, &value);
if (!status) {
SDL_Log("SDL_GL_MULTISAMPLESAMPLES: requested %d, got %d\n", fsaa,
value);
} else {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Failed to get SDL_GL_MULTISAMPLESAMPLES: %s\n",
SDL_GetError());
}
}
if (accel >= 0) {
status = SDL_GL_GetAttribute(SDL_GL_ACCELERATED_VISUAL, &value);
if (!status) {
SDL_Log("SDL_GL_ACCELERATED_VISUAL: requested %d, got %d\n", accel,
value);
} else {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Failed to get SDL_GL_ACCELERATED_VISUAL: %s\n",
SDL_GetError());
}
}
/* Set rendering settings */
ctx.glMatrixMode(GL_PROJECTION);
ctx.glLoadIdentity();
ctx.glOrtho(-2.0, 2.0, -2.0, 2.0, -20.0, 20.0);
ctx.glMatrixMode(GL_MODELVIEW);
ctx.glLoadIdentity();
ctx.glEnable(GL_DEPTH_TEST);
ctx.glDepthFunc(GL_LESS);
ctx.glShadeModel(GL_SMOOTH);
/* Main render loop */
frames = 0;
then = SDL_GetTicks();
done = 0;
while (!done) {
/* Check for events */
++frames;
while (SDL_PollEvent(&event)) {
SDLTest_CommonEvent(state, &event, &done);
}
for (i = 0; i < state->num_windows; ++i) {
int w, h;
if (state->windows[i] == NULL)
continue;
SDL_GL_MakeCurrent(state->windows[i], context);
SDL_GL_GetDrawableSize(state->windows[i], &w, &h);
ctx.glViewport(0, 0, w, h);
Render();
SDL_GL_SwapWindow(state->windows[i]);
}
}
/* Print out some timing information */
now = SDL_GetTicks();
if (now > then) {
SDL_Log("%2.2f frames per second\n",
((double) frames * 1000) / (now - then));
}
quit(0);
return 0;
}
