Mercurial > sdl-ios-xcode
view test/testgl2.c @ 2427:32b9909db651 gsoc2008_iphone
changed macro MAX_G_FORCE to SDL_IPHONE_MAX_GFORCE and moved it to the SDL_config_iphoneos.h file. This should allow users to convert between the Sint16 returned by polling the joystick and units of g-force, which better describe what is going on with the iPhone (and are what the iPhone OS actually gives you). This conversion wouldn't be necessary except that we'd need floating point to store everything as g-force.
author | Holmes Futrell <hfutrell@umail.ucsb.edu> |
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date | Fri, 15 Aug 2008 00:46:58 +0000 |
parents | 91e601d9df8b |
children | 82e60908fab1 |
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#include <stdlib.h> #include <stdio.h> #include <string.h> #include <math.h> #include "common.h" #ifdef __MACOS__ #define HAVE_OPENGL #endif #ifdef HAVE_OPENGL #include "SDL_opengl.h" /* Undefine this if you want a flat cube instead of a rainbow cube */ #define SHADED_CUBE 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 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. */ glClearColor(0.0, 0.0, 0.0, 1.0); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glBegin(GL_QUADS); #ifdef SHADED_CUBE glColor3fv(color[0]); glVertex3fv(cube[0]); glColor3fv(color[1]); glVertex3fv(cube[1]); glColor3fv(color[2]); glVertex3fv(cube[2]); glColor3fv(color[3]); glVertex3fv(cube[3]); glColor3fv(color[3]); glVertex3fv(cube[3]); glColor3fv(color[4]); glVertex3fv(cube[4]); glColor3fv(color[7]); glVertex3fv(cube[7]); glColor3fv(color[2]); glVertex3fv(cube[2]); glColor3fv(color[0]); glVertex3fv(cube[0]); glColor3fv(color[5]); glVertex3fv(cube[5]); glColor3fv(color[6]); glVertex3fv(cube[6]); glColor3fv(color[1]); glVertex3fv(cube[1]); glColor3fv(color[5]); glVertex3fv(cube[5]); glColor3fv(color[4]); glVertex3fv(cube[4]); glColor3fv(color[7]); glVertex3fv(cube[7]); glColor3fv(color[6]); glVertex3fv(cube[6]); glColor3fv(color[5]); glVertex3fv(cube[5]); glColor3fv(color[0]); glVertex3fv(cube[0]); glColor3fv(color[3]); glVertex3fv(cube[3]); glColor3fv(color[4]); glVertex3fv(cube[4]); glColor3fv(color[6]); glVertex3fv(cube[6]); glColor3fv(color[1]); glVertex3fv(cube[1]); glColor3fv(color[2]); glVertex3fv(cube[2]); glColor3fv(color[7]); glVertex3fv(cube[7]); #else /* flat cube */ glColor3f(1.0, 0.0, 0.0); glVertex3fv(cube[0]); glVertex3fv(cube[1]); glVertex3fv(cube[2]); glVertex3fv(cube[3]); glColor3f(0.0, 1.0, 0.0); glVertex3fv(cube[3]); glVertex3fv(cube[4]); glVertex3fv(cube[7]); glVertex3fv(cube[2]); glColor3f(0.0, 0.0, 1.0); glVertex3fv(cube[0]); glVertex3fv(cube[5]); glVertex3fv(cube[6]); glVertex3fv(cube[1]); glColor3f(0.0, 1.0, 1.0); glVertex3fv(cube[5]); glVertex3fv(cube[4]); glVertex3fv(cube[7]); glVertex3fv(cube[6]); glColor3f(1.0, 1.0, 0.0); glVertex3fv(cube[5]); glVertex3fv(cube[0]); glVertex3fv(cube[3]); glVertex3fv(cube[4]); glColor3f(1.0, 0.0, 1.0); glVertex3fv(cube[6]); glVertex3fv(cube[1]); glVertex3fv(cube[2]); glVertex3fv(cube[7]); #endif /* SHADED_CUBE */ glEnd(); 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); SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1); 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); SDL_GL_GetAttribute(SDL_GL_DOUBLEBUFFER, &value); printf("SDL_GL_DOUBLEBUFFER: requested 1, got %d\n", 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(); glOrtho(-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_OPENGL */ int main(int argc, char *argv[]) { printf("No OpenGL support on this system\n"); return 1; } #endif /* HAVE_OPENGL */