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annotate test/teststreaming.c @ 5260:b0f5108fda60

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Cleaned up the file a bit for tutorial viewing
author Sam Lantinga <slouken@libsdl.org>
date Fri, 11 Feb 2011 13:06:35 -0800
parents f650566b2f51
children
rev   line source
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1 /********************************************************************************
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2 * *
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3 * Running moose :) Coded by Mike Gorchak. *
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4 * *
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5 ********************************************************************************/
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6
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7 #include <stdlib.h>
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8 #include <stdio.h>
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9
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10 #include "SDL.h"
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11
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12 #define MOOSEPIC_W 64
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13 #define MOOSEPIC_H 88
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14
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15 #define MOOSEFRAME_SIZE (MOOSEPIC_W * MOOSEPIC_H)
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16 #define MOOSEFRAMES_COUNT 10
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17
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18 SDL_Color MooseColors[84] = {
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19 {49, 49, 49}, {66, 24, 0}, {66, 33, 0}, {66, 66, 66},
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20 {66, 115, 49}, {74, 33, 0}, {74, 41, 16}, {82, 33, 8},
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21 {82, 41, 8}, {82, 49, 16}, {82, 82, 82}, {90, 41, 8},
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22 {90, 41, 16}, {90, 57, 24}, {99, 49, 16}, {99, 66, 24},
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23 {99, 66, 33}, {99, 74, 33}, {107, 57, 24}, {107, 82, 41},
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24 {115, 57, 33}, {115, 66, 33}, {115, 66, 41}, {115, 74, 0},
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25 {115, 90, 49}, {115, 115, 115}, {123, 82, 0}, {123, 99, 57},
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26 {132, 66, 41}, {132, 74, 41}, {132, 90, 8}, {132, 99, 33},
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27 {132, 99, 66}, {132, 107, 66}, {140, 74, 49}, {140, 99, 16},
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28 {140, 107, 74}, {140, 115, 74}, {148, 107, 24}, {148, 115, 82},
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29 {148, 123, 74}, {148, 123, 90}, {156, 115, 33}, {156, 115, 90},
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30 {156, 123, 82}, {156, 132, 82}, {156, 132, 99}, {156, 156, 156},
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31 {165, 123, 49}, {165, 123, 90}, {165, 132, 82}, {165, 132, 90},
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32 {165, 132, 99}, {165, 140, 90}, {173, 132, 57}, {173, 132, 99},
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33 {173, 140, 107}, {173, 140, 115}, {173, 148, 99}, {173, 173, 173},
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34 {181, 140, 74}, {181, 148, 115}, {181, 148, 123}, {181, 156, 107},
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35 {189, 148, 123}, {189, 156, 82}, {189, 156, 123}, {189, 156, 132},
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36 {189, 189, 189}, {198, 156, 123}, {198, 165, 132}, {206, 165, 99},
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37 {206, 165, 132}, {206, 173, 140}, {206, 206, 206}, {214, 173, 115},
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38 {214, 173, 140}, {222, 181, 148}, {222, 189, 132}, {222, 189, 156},
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39 {222, 222, 222}, {231, 198, 165}, {231, 231, 231}, {239, 206, 173}
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40 };
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41
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42 Uint8 MooseFrames[MOOSEFRAMES_COUNT][MOOSEFRAME_SIZE];
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43
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44 void quit(int rc)
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45 {
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46 SDL_Quit();
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47 exit(rc);
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48 }
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49
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50 void UpdateTexture(SDL_Texture *texture, int frame)
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51 {
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52 SDL_Color *color;
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53 Uint8 *src;
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54 Uint32 *dst;
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55 int row, col;
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56 void *pixels;
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57 int pitch;
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58
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59 if (SDL_LockTexture(texture, NULL, &pixels, &pitch) < 0) {
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60 fprintf(stderr, "Couldn't lock texture: %s\n", SDL_GetError());
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61 quit(5);
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62 }
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63 src = MooseFrames[frame];
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64 for (row = 0; row < MOOSEPIC_H; ++row) {
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65 dst = (Uint32*)((Uint8*)pixels + row * pitch);
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66 for (col = 0; col < MOOSEPIC_W; ++col) {
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67 color = &MooseColors[*src++];
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68 *dst++ = (0xFF000000|(color->r<<16)|(color->g<<8)|color->b);
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69 }
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70 }
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71 SDL_UnlockTexture(texture);
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72 }
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73
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74 int
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75 main(int argc, char **argv)
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76 {
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77 SDL_Window *window;
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78 SDL_Renderer *renderer;
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79 SDL_RWops *handle;
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80 SDL_Texture *MooseTexture;
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81 SDL_Event event;
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82 SDL_bool done = SDL_FALSE;
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83 int frame;
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84
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85 if (SDL_Init(SDL_INIT_VIDEO) < 0) {
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86 fprintf(stderr, "Couldn't initialize SDL: %s\n", SDL_GetError());
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87 return 1;
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88 }
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89
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90 /* load the moose images */
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91 handle = SDL_RWFromFile("moose.dat", "rb");
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92 if (handle == NULL) {
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93 fprintf(stderr, "Can't find the file moose.dat !\n");
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94 quit(2);
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95 }
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96 SDL_RWread(handle, MooseFrames, MOOSEFRAME_SIZE, MOOSEFRAMES_COUNT);
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97 SDL_RWclose(handle);
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98
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99
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100 /* Create the window and renderer */
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101 window = SDL_CreateWindow("Happy Moose",
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102 SDL_WINDOWPOS_UNDEFINED,
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103 SDL_WINDOWPOS_UNDEFINED,
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104 MOOSEPIC_W*4, MOOSEPIC_H*4,
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105 SDL_WINDOW_SHOWN|SDL_WINDOW_RESIZABLE);
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106 if (!window) {
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107 fprintf(stderr, "Couldn't set create window: %s\n", SDL_GetError());
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108 quit(3);
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109 }
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110
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111 renderer = SDL_CreateRenderer(window, -1, 0);
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112 if (!renderer) {
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113 fprintf(stderr, "Couldn't set create renderer: %s\n", SDL_GetError());
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114 quit(4);
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115 }
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116
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117 MooseTexture = SDL_CreateTexture(renderer, SDL_PIXELFORMAT_ARGB8888, SDL_TEXTUREACCESS_STREAMING, MOOSEPIC_W, MOOSEPIC_H);
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118 if (!MooseTexture) {
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119 fprintf(stderr, "Couldn't set create texture: %s\n", SDL_GetError());
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120 quit(5);
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121 }
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122
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123 /* Loop, waiting for QUIT or the escape key */
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124 frame = 0;
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125 while (!done) {
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126 while (SDL_PollEvent(&event)) {
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127 switch (event.type) {
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128 case SDL_KEYDOWN:
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129 if (event.key.keysym.sym == SDLK_ESCAPE) {
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130 done = SDL_TRUE;
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131 }
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132 break;
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133 case SDL_QUIT:
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134 done = SDL_TRUE;
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135 break;
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136 }
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137 }
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138
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139 frame = (frame + 1) % MOOSEFRAMES_COUNT;
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140 UpdateTexture(MooseTexture, frame);
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141
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142 SDL_RenderClear(renderer);
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143 SDL_RenderCopy(renderer, MooseTexture, NULL, NULL);
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144 SDL_RenderPresent(renderer);
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145 }
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146 SDL_DestroyRenderer(renderer);
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147
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148 quit(0);
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149 return 0;
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150 }
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151
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152 /* vi: set ts=4 sw=4 expandtab: */