teststreaming.c (6164B)
1/* 2 Copyright (C) 1997-2014 Sam Lantinga <slouken@libsdl.org> 3 4 This software is provided 'as-is', without any express or implied 5 warranty. In no event will the authors be held liable for any damages 6 arising from the use of this software. 7 8 Permission is granted to anyone to use this software for any purpose, 9 including commercial applications, and to alter it and redistribute it 10 freely. 11*/ 12/******************************************************************************** 13 * * 14 * Running moose :) Coded by Mike Gorchak. * 15 * * 16 ********************************************************************************/ 17 18#include <stdlib.h> 19#include <stdio.h> 20 21#include "SDL.h" 22 23#define MOOSEPIC_W 64 24#define MOOSEPIC_H 88 25 26#define MOOSEFRAME_SIZE (MOOSEPIC_W * MOOSEPIC_H) 27#define MOOSEFRAMES_COUNT 10 28 29SDL_Color MooseColors[84] = { 30 {49, 49, 49, 255}, {66, 24, 0, 255}, {66, 33, 0, 255}, {66, 66, 66, 255}, 31 {66, 115, 49, 255}, {74, 33, 0, 255}, {74, 41, 16, 255}, {82, 33, 8, 255}, 32 {82, 41, 8, 255}, {82, 49, 16, 255}, {82, 82, 82, 255}, {90, 41, 8, 255}, 33 {90, 41, 16, 255}, {90, 57, 24, 255}, {99, 49, 16, 255}, {99, 66, 24, 255}, 34 {99, 66, 33, 255}, {99, 74, 33, 255}, {107, 57, 24, 255}, {107, 82, 41, 255}, 35 {115, 57, 33, 255}, {115, 66, 33, 255}, {115, 66, 41, 255}, {115, 74, 0, 255}, 36 {115, 90, 49, 255}, {115, 115, 115, 255}, {123, 82, 0, 255}, {123, 99, 57, 255}, 37 {132, 66, 41, 255}, {132, 74, 41, 255}, {132, 90, 8, 255}, {132, 99, 33, 255}, 38 {132, 99, 66, 255}, {132, 107, 66, 255}, {140, 74, 49, 255}, {140, 99, 16, 255}, 39 {140, 107, 74, 255}, {140, 115, 74, 255}, {148, 107, 24, 255}, {148, 115, 82, 255}, 40 {148, 123, 74, 255}, {148, 123, 90, 255}, {156, 115, 33, 255}, {156, 115, 90, 255}, 41 {156, 123, 82, 255}, {156, 132, 82, 255}, {156, 132, 99, 255}, {156, 156, 156, 255}, 42 {165, 123, 49, 255}, {165, 123, 90, 255}, {165, 132, 82, 255}, {165, 132, 90, 255}, 43 {165, 132, 99, 255}, {165, 140, 90, 255}, {173, 132, 57, 255}, {173, 132, 99, 255}, 44 {173, 140, 107, 255}, {173, 140, 115, 255}, {173, 148, 99, 255}, {173, 173, 173, 255}, 45 {181, 140, 74, 255}, {181, 148, 115, 255}, {181, 148, 123, 255}, {181, 156, 107, 255}, 46 {189, 148, 123, 255}, {189, 156, 82, 255}, {189, 156, 123, 255}, {189, 156, 132, 255}, 47 {189, 189, 189, 255}, {198, 156, 123, 255}, {198, 165, 132, 255}, {206, 165, 99, 255}, 48 {206, 165, 132, 255}, {206, 173, 140, 255}, {206, 206, 206, 255}, {214, 173, 115, 255}, 49 {214, 173, 140, 255}, {222, 181, 148, 255}, {222, 189, 132, 255}, {222, 189, 156, 255}, 50 {222, 222, 222, 255}, {231, 198, 165, 255}, {231, 231, 231, 255}, {239, 206, 173, 255} 51}; 52 53Uint8 MooseFrames[MOOSEFRAMES_COUNT][MOOSEFRAME_SIZE]; 54 55void quit(int rc) 56{ 57 SDL_Quit(); 58 exit(rc); 59} 60 61void UpdateTexture(SDL_Texture *texture, int frame) 62{ 63 SDL_Color *color; 64 Uint8 *src; 65 Uint32 *dst; 66 int row, col; 67 void *pixels; 68 int pitch; 69 70 if (SDL_LockTexture(texture, NULL, &pixels, &pitch) < 0) { 71 SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't lock texture: %s\n", SDL_GetError()); 72 quit(5); 73 } 74 src = MooseFrames[frame]; 75 for (row = 0; row < MOOSEPIC_H; ++row) { 76 dst = (Uint32*)((Uint8*)pixels + row * pitch); 77 for (col = 0; col < MOOSEPIC_W; ++col) { 78 color = &MooseColors[*src++]; 79 *dst++ = (0xFF000000|(color->r<<16)|(color->g<<8)|color->b); 80 } 81 } 82 SDL_UnlockTexture(texture); 83} 84 85int 86main(int argc, char **argv) 87{ 88 SDL_Window *window; 89 SDL_Renderer *renderer; 90 SDL_RWops *handle; 91 SDL_Texture *MooseTexture; 92 SDL_Event event; 93 SDL_bool done = SDL_FALSE; 94 int frame; 95 96 /* Enable standard application logging */ 97 SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO); 98 99 if (SDL_Init(SDL_INIT_VIDEO) < 0) { 100 SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't initialize SDL: %s\n", SDL_GetError()); 101 return 1; 102 } 103 104 /* load the moose images */ 105 handle = SDL_RWFromFile("moose.dat", "rb"); 106 if (handle == NULL) { 107 SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Can't find the file moose.dat !\n"); 108 quit(2); 109 } 110 SDL_RWread(handle, MooseFrames, MOOSEFRAME_SIZE, MOOSEFRAMES_COUNT); 111 SDL_RWclose(handle); 112 113 114 /* Create the window and renderer */ 115 window = SDL_CreateWindow("Happy Moose", 116 SDL_WINDOWPOS_UNDEFINED, 117 SDL_WINDOWPOS_UNDEFINED, 118 MOOSEPIC_W*4, MOOSEPIC_H*4, 119 SDL_WINDOW_RESIZABLE); 120 if (!window) { 121 SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't set create window: %s\n", SDL_GetError()); 122 quit(3); 123 } 124 125 renderer = SDL_CreateRenderer(window, -1, 0); 126 if (!renderer) { 127 SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't set create renderer: %s\n", SDL_GetError()); 128 quit(4); 129 } 130 131 MooseTexture = SDL_CreateTexture(renderer, SDL_PIXELFORMAT_ARGB8888, SDL_TEXTUREACCESS_STREAMING, MOOSEPIC_W, MOOSEPIC_H); 132 if (!MooseTexture) { 133 SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't set create texture: %s\n", SDL_GetError()); 134 quit(5); 135 } 136 137 /* Loop, waiting for QUIT or the escape key */ 138 frame = 0; 139 while (!done) { 140 while (SDL_PollEvent(&event)) { 141 switch (event.type) { 142 case SDL_KEYDOWN: 143 if (event.key.keysym.sym == SDLK_ESCAPE) { 144 done = SDL_TRUE; 145 } 146 break; 147 case SDL_QUIT: 148 done = SDL_TRUE; 149 break; 150 } 151 } 152 153 frame = (frame + 1) % MOOSEFRAMES_COUNT; 154 UpdateTexture(MooseTexture, frame); 155 156 SDL_RenderClear(renderer); 157 SDL_RenderCopy(renderer, MooseTexture, NULL, NULL); 158 SDL_RenderPresent(renderer); 159 } 160 SDL_DestroyRenderer(renderer); 161 162 quit(0); 163 return 0; 164} 165 166/* vi: set ts=4 sw=4 expandtab: */