test/teststreaming.c
changeset 5254 f650566b2f51
child 5255 b0f5108fda60
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5253:9e70b360f423 5254:f650566b2f51
       
     1 /********************************************************************************
       
     2  *                                                                              *
       
     3  * Running moose :) Coded by Mike Gorchak.                                      *
       
     4  *                                                                              *
       
     5  ********************************************************************************/
       
     6 
       
     7 #include <stdlib.h>
       
     8 #include <stdio.h>
       
     9 #include <string.h>
       
    10 
       
    11 #include "SDL.h"
       
    12 
       
    13 #define MOOSEPIC_W 64
       
    14 #define MOOSEPIC_H 88
       
    15 
       
    16 #define MOOSEFRAME_SIZE (MOOSEPIC_W * MOOSEPIC_H)
       
    17 #define MOOSEFRAMES_COUNT 10
       
    18 
       
    19 SDL_Color MooseColors[84] = {
       
    20     {49, 49, 49}
       
    21     , {66, 24, 0}
       
    22     , {66, 33, 0}
       
    23     , {66, 66, 66}
       
    24     ,
       
    25     {66, 115, 49}
       
    26     , {74, 33, 0}
       
    27     , {74, 41, 16}
       
    28     , {82, 33, 8}
       
    29     ,
       
    30     {82, 41, 8}
       
    31     , {82, 49, 16}
       
    32     , {82, 82, 82}
       
    33     , {90, 41, 8}
       
    34     ,
       
    35     {90, 41, 16}
       
    36     , {90, 57, 24}
       
    37     , {99, 49, 16}
       
    38     , {99, 66, 24}
       
    39     ,
       
    40     {99, 66, 33}
       
    41     , {99, 74, 33}
       
    42     , {107, 57, 24}
       
    43     , {107, 82, 41}
       
    44     ,
       
    45     {115, 57, 33}
       
    46     , {115, 66, 33}
       
    47     , {115, 66, 41}
       
    48     , {115, 74, 0}
       
    49     ,
       
    50     {115, 90, 49}
       
    51     , {115, 115, 115}
       
    52     , {123, 82, 0}
       
    53     , {123, 99, 57}
       
    54     ,
       
    55     {132, 66, 41}
       
    56     , {132, 74, 41}
       
    57     , {132, 90, 8}
       
    58     , {132, 99, 33}
       
    59     ,
       
    60     {132, 99, 66}
       
    61     , {132, 107, 66}
       
    62     , {140, 74, 49}
       
    63     , {140, 99, 16}
       
    64     ,
       
    65     {140, 107, 74}
       
    66     , {140, 115, 74}
       
    67     , {148, 107, 24}
       
    68     , {148, 115, 82}
       
    69     ,
       
    70     {148, 123, 74}
       
    71     , {148, 123, 90}
       
    72     , {156, 115, 33}
       
    73     , {156, 115, 90}
       
    74     ,
       
    75     {156, 123, 82}
       
    76     , {156, 132, 82}
       
    77     , {156, 132, 99}
       
    78     , {156, 156, 156}
       
    79     ,
       
    80     {165, 123, 49}
       
    81     , {165, 123, 90}
       
    82     , {165, 132, 82}
       
    83     , {165, 132, 90}
       
    84     ,
       
    85     {165, 132, 99}
       
    86     , {165, 140, 90}
       
    87     , {173, 132, 57}
       
    88     , {173, 132, 99}
       
    89     ,
       
    90     {173, 140, 107}
       
    91     , {173, 140, 115}
       
    92     , {173, 148, 99}
       
    93     , {173, 173, 173}
       
    94     ,
       
    95     {181, 140, 74}
       
    96     , {181, 148, 115}
       
    97     , {181, 148, 123}
       
    98     , {181, 156, 107}
       
    99     ,
       
   100     {189, 148, 123}
       
   101     , {189, 156, 82}
       
   102     , {189, 156, 123}
       
   103     , {189, 156, 132}
       
   104     ,
       
   105     {189, 189, 189}
       
   106     , {198, 156, 123}
       
   107     , {198, 165, 132}
       
   108     , {206, 165, 99}
       
   109     ,
       
   110     {206, 165, 132}
       
   111     , {206, 173, 140}
       
   112     , {206, 206, 206}
       
   113     , {214, 173, 115}
       
   114     ,
       
   115     {214, 173, 140}
       
   116     , {222, 181, 148}
       
   117     , {222, 189, 132}
       
   118     , {222, 189, 156}
       
   119     ,
       
   120     {222, 222, 222}
       
   121     , {231, 198, 165}
       
   122     , {231, 231, 231}
       
   123     , {239, 206, 173}
       
   124 };
       
   125 
       
   126 Uint8 MooseFrames[MOOSEFRAMES_COUNT][MOOSEFRAME_SIZE];
       
   127 
       
   128 /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
       
   129 static void
       
   130 quit(int rc)
       
   131 {
       
   132     SDL_Quit();
       
   133     exit(rc);
       
   134 }
       
   135 
       
   136 static void UpdateTexture(SDL_Texture *texture, int frame)
       
   137 {
       
   138     SDL_Color *color;
       
   139     Uint8 *src;
       
   140     Uint32 *dst;
       
   141     int row, col;
       
   142     void *pixels;
       
   143     int pitch;
       
   144 
       
   145     if (SDL_LockTexture(texture, NULL, &pixels, &pitch) < 0) {
       
   146         fprintf(stderr, "Couldn't lock texture: %s\n", SDL_GetError());
       
   147         quit(5);
       
   148     }
       
   149     src = MooseFrames[frame];
       
   150     for (row = 0; row < MOOSEPIC_H; ++row) {
       
   151         dst = (Uint32*)((Uint8*)pixels + row * pitch);
       
   152         for (col = 0; col < MOOSEPIC_W; ++col) {
       
   153             color = &MooseColors[*src++];
       
   154             *dst++ = (0xFF000000|(color->r<<16)|(color->g<<8)|color->b);
       
   155         }
       
   156     }
       
   157     SDL_UnlockTexture(texture);
       
   158 }
       
   159 
       
   160 int
       
   161 main(int argc, char **argv)
       
   162 {
       
   163     SDL_Window *window;
       
   164     SDL_Renderer *renderer;
       
   165     SDL_RWops *handle;
       
   166     SDL_Texture *MooseTexture;
       
   167     SDL_Event event;
       
   168     SDL_bool done = SDL_FALSE;
       
   169     int frame;
       
   170 
       
   171     if (SDL_Init(SDL_INIT_VIDEO) < 0) {
       
   172         fprintf(stderr, "Couldn't initialize SDL: %s\n", SDL_GetError());
       
   173         return 1;
       
   174     }
       
   175 
       
   176     /* load the moose images */
       
   177     handle = SDL_RWFromFile("moose.dat", "rb");
       
   178     if (handle == NULL) {
       
   179         fprintf(stderr, "Can't find the file moose.dat !\n");
       
   180         quit(2);
       
   181     }
       
   182     SDL_RWread(handle, MooseFrames, MOOSEFRAME_SIZE, MOOSEFRAMES_COUNT);
       
   183     SDL_RWclose(handle);
       
   184 
       
   185 
       
   186     /* Create the window and renderer */
       
   187     window = SDL_CreateWindow("Happy Moose",
       
   188                               SDL_WINDOWPOS_UNDEFINED,
       
   189                               SDL_WINDOWPOS_UNDEFINED,
       
   190                               MOOSEPIC_W*4, MOOSEPIC_H*4,
       
   191                               SDL_WINDOW_SHOWN|SDL_WINDOW_RESIZABLE);
       
   192     if (!window) {
       
   193         fprintf(stderr, "Couldn't set create window: %s\n", SDL_GetError());
       
   194         quit(3);
       
   195     }
       
   196 
       
   197     renderer = SDL_CreateRenderer(window, -1, 0);
       
   198     if (!renderer) {
       
   199         fprintf(stderr, "Couldn't set create renderer: %s\n", SDL_GetError());
       
   200         quit(4);
       
   201     }
       
   202 
       
   203     MooseTexture = SDL_CreateTexture(renderer, SDL_PIXELFORMAT_ARGB8888, SDL_TEXTUREACCESS_STREAMING, MOOSEPIC_W, MOOSEPIC_H);
       
   204     if (!MooseTexture) {
       
   205         fprintf(stderr, "Couldn't set create texture: %s\n", SDL_GetError());
       
   206         quit(5);
       
   207     }
       
   208 
       
   209     /* Loop, waiting for QUIT or the escape key */
       
   210     frame = 0;
       
   211     while (!done) {
       
   212         while (SDL_PollEvent(&event)) {
       
   213             switch (event.type) {
       
   214             case SDL_KEYDOWN:
       
   215                 if (event.key.keysym.sym == SDLK_ESCAPE) {
       
   216                     done = SDL_TRUE;
       
   217                 }
       
   218                 break;
       
   219             case SDL_QUIT:
       
   220                 done = SDL_TRUE;
       
   221                 break;
       
   222             }
       
   223         }
       
   224 
       
   225         frame = (frame + 1) % MOOSEFRAMES_COUNT;
       
   226         UpdateTexture(MooseTexture, frame);
       
   227 
       
   228         SDL_RenderClear(renderer);
       
   229         SDL_RenderCopy(renderer, MooseTexture, NULL, NULL);
       
   230         SDL_RenderPresent(renderer);
       
   231     }
       
   232     SDL_DestroyRenderer(renderer);
       
   233 
       
   234     quit(0);
       
   235     return 0;
       
   236 }
       
   237 
       
   238 /* vi: set ts=4 sw=4 expandtab: */