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view test/testgles.c @ 2776:caf3d5b2153f
Sort by HID usage, which makes more sense and is more cross-platform
author | Sam Lantinga <slouken@libsdl.org> |
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date | Sat, 08 Nov 2008 07:34:21 +0000 |
parents | f55c87ae336b |
children | 82e60908fab1 |
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#include <stdlib.h> #include <stdio.h> #include <string.h> #include <math.h> #include "common.h" #ifdef __IPHONEOS__ #define HAVE_OPENGLES #endif #ifdef HAVE_OPENGLES #include "SDL_opengles.h" static CommonState *state; static SDL_GLContext context; /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */ static void quit(int rc) { if (context) { /* SDL_GL_MakeCurrent(0, NULL); *//* doesn't do anything */ SDL_GL_DeleteContext(context); } CommonQuit(state); exit(rc); } static void Render() { static GLubyte color[8][4] = { {255, 0, 0, 0}, {255, 0, 0, 255}, {0, 255, 0, 255}, {0, 255, 0, 255}, {0, 255, 0, 255}, {255, 255, 255, 255}, {255, 0, 255, 255}, {0, 0, 255, 255} }; static GLfloat cube[8][3] = { {0.5, 0.5, -0.5}, {0.5f, -0.5f, -0.5f}, {-0.5f, -0.5f, -0.5f}, {-0.5f, 0.5f, -0.5f}, {-0.5f, 0.5f, 0.5f}, {0.5f, 0.5f, 0.5f}, {0.5f, -0.5f, 0.5f}, {-0.5f, -0.5f, 0.5f} }; static GLubyte indices[36] = { 0, 3, 4, 4, 5, 0, 0, 5, 6, 6, 1, 0, 6, 7, 2, 2, 1, 6, 7, 4, 3, 3, 2, 7, 5, 4, 7, 7, 6, 5, 2, 3, 1, 3, 0, 1 }; /* Do our drawing, too. */ glClearColor(0.0, 0.0, 0.0, 1.0); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); /* Draw the cube */ glColorPointer(4, GL_UNSIGNED_BYTE, 0, color); glEnableClientState(GL_COLOR_ARRAY); glVertexPointer(3, GL_FLOAT, 0, cube); glEnableClientState(GL_VERTEX_ARRAY); glDrawElements(GL_TRIANGLES, 36, GL_UNSIGNED_BYTE, indices); glMatrixMode(GL_MODELVIEW); 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; /* Initialize parameters */ fsaa = 0; accel = 0; /* Initialize test framework */ state = CommonCreateState(argv, SDL_INIT_VIDEO); if (!state) { return 1; } for (i = 1; i < argc;) { int consumed; consumed = CommonArg(state, i); if (consumed == 0) { if (SDL_strcasecmp(argv[i], "--fsaa") == 0) { ++fsaa; consumed = 1; } else if (SDL_strcasecmp(argv[i], "--accel") == 0) { ++accel; consumed = 1; } else { consumed = -1; } } if (consumed < 0) { fprintf(stderr, "Usage: %s %s [--fsaa] [--accel]\n", argv[0], CommonUsage(state)); quit(1); } i += consumed; } /* Set OpenGL parameters */ state->window_flags |= SDL_WINDOW_OPENGL; SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 5); SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 5); SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 5); SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 16); if (fsaa) { SDL_GL_SetAttribute(SDL_GL_MULTISAMPLEBUFFERS, 1); SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES, fsaa); } if (accel) { SDL_GL_SetAttribute(SDL_GL_ACCELERATED_VISUAL, 1); } if (!CommonInit(state)) { quit(2); } /* Create OpenGL context */ context = SDL_GL_CreateContext(state->windows[0]); if (!context) { fprintf(stderr, "SDL_GL_CreateContext(): %s\n", SDL_GetError()); quit(2); } if (state->render_flags & SDL_RENDERER_PRESENTVSYNC) { SDL_GL_SetSwapInterval(1); } else { SDL_GL_SetSwapInterval(0); } SDL_GetCurrentDisplayMode(&mode); printf("Screen BPP: %d\n", SDL_BITSPERPIXEL(mode.format)); printf("\n"); printf("Vendor : %s\n", glGetString(GL_VENDOR)); printf("Renderer : %s\n", glGetString(GL_RENDERER)); printf("Version : %s\n", glGetString(GL_VERSION)); printf("Extensions : %s\n", glGetString(GL_EXTENSIONS)); printf("\n"); SDL_GL_GetAttribute(SDL_GL_RED_SIZE, &value); printf("SDL_GL_RED_SIZE: requested %d, got %d\n", 5, value); SDL_GL_GetAttribute(SDL_GL_GREEN_SIZE, &value); printf("SDL_GL_GREEN_SIZE: requested %d, got %d\n", 5, value); SDL_GL_GetAttribute(SDL_GL_BLUE_SIZE, &value); printf("SDL_GL_BLUE_SIZE: requested %d, got %d\n", 5, value); SDL_GL_GetAttribute(SDL_GL_DEPTH_SIZE, &value); printf("SDL_GL_DEPTH_SIZE: requested %d, got %d\n", 16, value); if (fsaa) { SDL_GL_GetAttribute(SDL_GL_MULTISAMPLEBUFFERS, &value); printf("SDL_GL_MULTISAMPLEBUFFERS: requested 1, got %d\n", value); SDL_GL_GetAttribute(SDL_GL_MULTISAMPLESAMPLES, &value); printf("SDL_GL_MULTISAMPLESAMPLES: requested %d, got %d\n", fsaa, value); } if (accel) { SDL_GL_GetAttribute(SDL_GL_ACCELERATED_VISUAL, &value); printf("SDL_GL_ACCELERATED_VISUAL: requested 1, got %d\n", value); } /* Set rendering settings */ glMatrixMode(GL_PROJECTION); glLoadIdentity(); glOrthof(-2.0, 2.0, -2.0, 2.0, -20.0, 20.0); glMatrixMode(GL_MODELVIEW); glLoadIdentity(); glEnable(GL_DEPTH_TEST); glDepthFunc(GL_LESS); glShadeModel(GL_SMOOTH); /* Main render loop */ frames = 0; then = SDL_GetTicks(); done = 0; while (!done) { /* Check for events */ ++frames; while (SDL_PollEvent(&event)) { CommonEvent(state, &event, &done); } for (i = 0; i < state->num_windows; ++i) { int w, h; SDL_GL_MakeCurrent(state->windows[i], context); SDL_GetWindowSize(state->windows[i], &w, &h); glViewport(0, 0, w, h); Render(); SDL_GL_SwapWindow(state->windows[i]); } } /* Print out some timing information */ now = SDL_GetTicks(); if (now > then) { printf("%2.2f frames per second\n", ((double) frames * 1000) / (now - then)); } quit(0); return 0; } #else /* HAVE_OPENGLES */ int main(int argc, char *argv[]) { printf("No OpenGL ES support on this system\n"); return 1; } #endif /* HAVE_OPENGLES */