test/testoverlay2.c
author Philipp Wiesemann <philipp.wiesemann@arcor.de>
Fri, 04 Apr 2014 23:56:15 +0200
changeset 8692 715d401184a2
parent 8149 681eb46b8ac4
child 9046 c3ec7c3e6c24
permissions -rw-r--r--
Removed unused variable from test program.
     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  * Test of the overlay used for moved pictures, test more closed to real life.  *
    15  * Running trojan moose :) Coded by Mike Gorchak.                               *
    16  *                                                                              *
    17  ********************************************************************************/
    18 
    19 #include <stdlib.h>
    20 #include <stdio.h>
    21 #include <string.h>
    22 
    23 #include "SDL.h"
    24 
    25 #define MOOSEPIC_W 64
    26 #define MOOSEPIC_H 88
    27 
    28 #define MOOSEFRAME_SIZE (MOOSEPIC_W * MOOSEPIC_H)
    29 #define MOOSEFRAMES_COUNT 10
    30 
    31 SDL_Color MooseColors[84] = {
    32     {49, 49, 49}
    33     , {66, 24, 0}
    34     , {66, 33, 0}
    35     , {66, 66, 66}
    36     ,
    37     {66, 115, 49}
    38     , {74, 33, 0}
    39     , {74, 41, 16}
    40     , {82, 33, 8}
    41     ,
    42     {82, 41, 8}
    43     , {82, 49, 16}
    44     , {82, 82, 82}
    45     , {90, 41, 8}
    46     ,
    47     {90, 41, 16}
    48     , {90, 57, 24}
    49     , {99, 49, 16}
    50     , {99, 66, 24}
    51     ,
    52     {99, 66, 33}
    53     , {99, 74, 33}
    54     , {107, 57, 24}
    55     , {107, 82, 41}
    56     ,
    57     {115, 57, 33}
    58     , {115, 66, 33}
    59     , {115, 66, 41}
    60     , {115, 74, 0}
    61     ,
    62     {115, 90, 49}
    63     , {115, 115, 115}
    64     , {123, 82, 0}
    65     , {123, 99, 57}
    66     ,
    67     {132, 66, 41}
    68     , {132, 74, 41}
    69     , {132, 90, 8}
    70     , {132, 99, 33}
    71     ,
    72     {132, 99, 66}
    73     , {132, 107, 66}
    74     , {140, 74, 49}
    75     , {140, 99, 16}
    76     ,
    77     {140, 107, 74}
    78     , {140, 115, 74}
    79     , {148, 107, 24}
    80     , {148, 115, 82}
    81     ,
    82     {148, 123, 74}
    83     , {148, 123, 90}
    84     , {156, 115, 33}
    85     , {156, 115, 90}
    86     ,
    87     {156, 123, 82}
    88     , {156, 132, 82}
    89     , {156, 132, 99}
    90     , {156, 156, 156}
    91     ,
    92     {165, 123, 49}
    93     , {165, 123, 90}
    94     , {165, 132, 82}
    95     , {165, 132, 90}
    96     ,
    97     {165, 132, 99}
    98     , {165, 140, 90}
    99     , {173, 132, 57}
   100     , {173, 132, 99}
   101     ,
   102     {173, 140, 107}
   103     , {173, 140, 115}
   104     , {173, 148, 99}
   105     , {173, 173, 173}
   106     ,
   107     {181, 140, 74}
   108     , {181, 148, 115}
   109     , {181, 148, 123}
   110     , {181, 156, 107}
   111     ,
   112     {189, 148, 123}
   113     , {189, 156, 82}
   114     , {189, 156, 123}
   115     , {189, 156, 132}
   116     ,
   117     {189, 189, 189}
   118     , {198, 156, 123}
   119     , {198, 165, 132}
   120     , {206, 165, 99}
   121     ,
   122     {206, 165, 132}
   123     , {206, 173, 140}
   124     , {206, 206, 206}
   125     , {214, 173, 115}
   126     ,
   127     {214, 173, 140}
   128     , {222, 181, 148}
   129     , {222, 189, 132}
   130     , {222, 189, 156}
   131     ,
   132     {222, 222, 222}
   133     , {231, 198, 165}
   134     , {231, 231, 231}
   135     , {239, 206, 173}
   136 };
   137 
   138 
   139 /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
   140 static void
   141 quit(int rc)
   142 {
   143     SDL_Quit();
   144     exit(rc);
   145 }
   146 
   147 /* All RGB2YUV conversion code and some other parts of code has been taken from testoverlay.c */
   148 
   149 /* NOTE: These RGB conversion functions are not intended for speed,
   150          only as examples.
   151 */
   152 
   153 void
   154 RGBtoYUV(Uint8 * rgb, int *yuv, int monochrome, int luminance)
   155 {
   156     if (monochrome) {
   157 #if 1                           /* these are the two formulas that I found on the FourCC site... */
   158         yuv[0] = (int)(0.299 * rgb[0] + 0.587 * rgb[1] + 0.114 * rgb[2]);
   159         yuv[1] = 128;
   160         yuv[2] = 128;
   161 #else
   162         yuv[0] = (int)(0.257 * rgb[0]) + (0.504 * rgb[1]) + (0.098 * rgb[2]) + 16;
   163         yuv[1] = 128;
   164         yuv[2] = 128;
   165 #endif
   166     } else {
   167 #if 1                           /* these are the two formulas that I found on the FourCC site... */
   168         yuv[0] = (int)(0.299 * rgb[0] + 0.587 * rgb[1] + 0.114 * rgb[2]);
   169         yuv[1] = (int)((rgb[2] - yuv[0]) * 0.565 + 128);
   170         yuv[2] = (int)((rgb[0] - yuv[0]) * 0.713 + 128);
   171 #else
   172         yuv[0] = (0.257 * rgb[0]) + (0.504 * rgb[1]) + (0.098 * rgb[2]) + 16;
   173         yuv[1] = 128 - (0.148 * rgb[0]) - (0.291 * rgb[1]) + (0.439 * rgb[2]);
   174         yuv[2] = 128 + (0.439 * rgb[0]) - (0.368 * rgb[1]) - (0.071 * rgb[2]);
   175 #endif
   176     }
   177 
   178     if (luminance != 100) {
   179         yuv[0] = yuv[0] * luminance / 100;
   180         if (yuv[0] > 255)
   181             yuv[0] = 255;
   182     }
   183 }
   184 
   185 void
   186 ConvertRGBtoYV12(Uint8 *rgb, Uint8 *out, int w, int h,
   187                  int monochrome, int luminance)
   188 {
   189     int x, y;
   190     int yuv[3];
   191     Uint8 *op[3];
   192 
   193     op[0] = out;
   194     op[1] = op[0] + w*h;
   195     op[2] = op[1] + w*h/4;
   196     for (y = 0; y < h; ++y) {
   197         for (x = 0; x < w; ++x) {
   198             RGBtoYUV(rgb, yuv, monochrome, luminance);
   199             *(op[0]++) = yuv[0];
   200             if (x % 2 == 0 && y % 2 == 0) {
   201                 *(op[1]++) = yuv[2];
   202                 *(op[2]++) = yuv[1];
   203             }
   204             rgb += 3;
   205         }
   206     }
   207 }
   208 
   209 static void
   210 PrintUsage(char *argv0)
   211 {
   212     SDL_Log("Usage: %s [arg] [arg] [arg] ...\n", argv0);
   213     SDL_Log("\n");
   214     SDL_Log("Where 'arg' is any of the following options:\n");
   215     SDL_Log("\n");
   216     SDL_Log("    -fps <frames per second>\n");
   217     SDL_Log("    -nodelay\n");
   218     SDL_Log("    -format <fmt> (one of the: YV12, IYUV, YUY2, UYVY, YVYU)\n");
   219     SDL_Log("    -scale <scale factor> (initial scale of the overlay)\n");
   220     SDL_Log("    -help (shows this help)\n");
   221     SDL_Log("\n");
   222     SDL_Log("Press ESC to exit, or SPACE to freeze the movie while application running.\n");
   223     SDL_Log("\n");
   224 }
   225 
   226 int
   227 main(int argc, char **argv)
   228 {
   229     Uint8 *RawMooseData;
   230     SDL_RWops *handle;
   231     int window_w;
   232     int window_h;
   233     SDL_Window *window;
   234     SDL_Renderer *renderer;
   235     Uint8 MooseFrame[MOOSEFRAMES_COUNT][MOOSEFRAME_SIZE*2];
   236     SDL_Texture *MooseTexture;
   237     SDL_Rect displayrect;
   238     SDL_Event event;
   239     int paused = 0;
   240     int i, j;
   241     int fps = 12;
   242     int fpsdelay;
   243     int nodelay = 0;
   244     Uint32 pixel_format = SDL_PIXELFORMAT_YV12;
   245     int scale = 5;
   246     SDL_bool done = SDL_FALSE;
   247 
   248     /* Enable standard application logging */
   249     SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);
   250 
   251     if (SDL_Init(SDL_INIT_VIDEO) < 0) {
   252         SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't initialize SDL: %s\n", SDL_GetError());
   253         return 3;
   254     }
   255 
   256     while (argc > 1) {
   257         if (strcmp(argv[1], "-fps") == 0) {
   258             if (argv[2]) {
   259                 fps = atoi(argv[2]);
   260                 if (fps == 0) {
   261                     SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
   262                             "The -fps option requires an argument [from 1 to 1000], default is 12.\n");
   263                     quit(10);
   264                 }
   265                 if ((fps < 0) || (fps > 1000)) {
   266                     SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
   267                             "The -fps option must be in range from 1 to 1000, default is 12.\n");
   268                     quit(10);
   269                 }
   270                 argv += 2;
   271                 argc -= 2;
   272             } else {
   273                 SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
   274                         "The -fps option requires an argument [from 1 to 1000], default is 12.\n");
   275                 quit(10);
   276             }
   277         } else if (strcmp(argv[1], "-nodelay") == 0) {
   278             nodelay = 1;
   279             argv += 1;
   280             argc -= 1;
   281         } else if (strcmp(argv[1], "-scale") == 0) {
   282             if (argv[2]) {
   283                 scale = atoi(argv[2]);
   284                 if (scale == 0) {
   285                     SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
   286                             "The -scale option requires an argument [from 1 to 50], default is 5.\n");
   287                     quit(10);
   288                 }
   289                 if ((scale < 0) || (scale > 50)) {
   290                     SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
   291                             "The -scale option must be in range from 1 to 50, default is 5.\n");
   292                     quit(10);
   293                 }
   294                 argv += 2;
   295                 argc -= 2;
   296             } else {
   297                 SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
   298                         "The -fps option requires an argument [from 1 to 1000], default is 12.\n");
   299                 quit(10);
   300             }
   301         } else if ((strcmp(argv[1], "-help") == 0)
   302                    || (strcmp(argv[1], "-h") == 0)) {
   303             PrintUsage(argv[0]);
   304             quit(0);
   305         } else {
   306             SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Unrecognized option: %s.\n", argv[1]);
   307             quit(10);
   308         }
   309         break;
   310     }
   311 
   312     RawMooseData = (Uint8 *) malloc(MOOSEFRAME_SIZE * MOOSEFRAMES_COUNT);
   313     if (RawMooseData == NULL) {
   314         SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Can't allocate memory for movie !\n");
   315         free(RawMooseData);
   316         quit(1);
   317     }
   318 
   319     /* load the trojan moose images */
   320     handle = SDL_RWFromFile("moose.dat", "rb");
   321     if (handle == NULL) {
   322         SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Can't find the file moose.dat !\n");
   323         free(RawMooseData);
   324         quit(2);
   325     }
   326 
   327     SDL_RWread(handle, RawMooseData, MOOSEFRAME_SIZE, MOOSEFRAMES_COUNT);
   328 
   329     SDL_RWclose(handle);
   330 
   331     /* Create the window and renderer */
   332     window_w = MOOSEPIC_W * scale;
   333     window_h = MOOSEPIC_H * scale;
   334     window = SDL_CreateWindow("Happy Moose",
   335                               SDL_WINDOWPOS_UNDEFINED,
   336                               SDL_WINDOWPOS_UNDEFINED,
   337                               window_w, window_h,
   338                               SDL_WINDOW_RESIZABLE);
   339     if (!window) {
   340         SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't set create window: %s\n", SDL_GetError());
   341         free(RawMooseData);
   342         quit(4);
   343     }
   344 
   345     renderer = SDL_CreateRenderer(window, -1, 0);
   346     if (!renderer) {
   347         SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't set create renderer: %s\n", SDL_GetError());
   348         free(RawMooseData);
   349         quit(4);
   350     }
   351 
   352     MooseTexture = SDL_CreateTexture(renderer, pixel_format, SDL_TEXTUREACCESS_STREAMING, MOOSEPIC_W, MOOSEPIC_H);
   353     if (!MooseTexture) {
   354         SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't set create texture: %s\n", SDL_GetError());
   355         free(RawMooseData);
   356         quit(5);
   357     }
   358     /* Uncomment this to check vertex color with a YUV texture */
   359     /* SDL_SetTextureColorMod(MooseTexture, 0xff, 0x80, 0x80); */
   360 
   361     for (i = 0; i < MOOSEFRAMES_COUNT; i++) {
   362         Uint8 MooseFrameRGB[MOOSEFRAME_SIZE*3];
   363         Uint8 *rgb;
   364         Uint8 *frame;
   365 
   366         rgb = MooseFrameRGB;
   367         frame = RawMooseData + i * MOOSEFRAME_SIZE;
   368         for (j = 0; j < MOOSEFRAME_SIZE; ++j) {
   369             rgb[0] = MooseColors[frame[j]].r;
   370             rgb[1] = MooseColors[frame[j]].g;
   371             rgb[2] = MooseColors[frame[j]].b;
   372             rgb += 3;
   373         }
   374         ConvertRGBtoYV12(MooseFrameRGB, MooseFrame[i], MOOSEPIC_W, MOOSEPIC_H, 0, 100);
   375     }
   376 
   377     free(RawMooseData);
   378 
   379     /* set the start frame */
   380     i = 0;
   381     if (nodelay) {
   382         fpsdelay = 0;
   383     } else {
   384         fpsdelay = 1000 / fps;
   385     }
   386 
   387     displayrect.x = 0;
   388     displayrect.y = 0;
   389     displayrect.w = window_w;
   390     displayrect.h = window_h;
   391 
   392     /* Ignore key up events, they don't even get filtered */
   393     SDL_EventState(SDL_KEYUP, SDL_IGNORE);
   394 
   395     /* Loop, waiting for QUIT or RESIZE */
   396     while (!done) {
   397         while (SDL_PollEvent(&event)) {
   398             switch (event.type) {
   399             case SDL_WINDOWEVENT:
   400                 if (event.window.event == SDL_WINDOWEVENT_RESIZED) {
   401                     SDL_RenderSetViewport(renderer, NULL);
   402                     displayrect.w = window_w = event.window.data1;
   403                     displayrect.h = window_h = event.window.data2;
   404                 }
   405                 break;
   406             case SDL_MOUSEBUTTONDOWN:
   407                 displayrect.x = event.button.x - window_w / 2;
   408                 displayrect.y = event.button.y - window_h / 2;
   409                 break;
   410             case SDL_MOUSEMOTION:
   411                 if (event.motion.state) {
   412                     displayrect.x = event.motion.x - window_w / 2;
   413                     displayrect.y = event.motion.y - window_h / 2;
   414                 }
   415                 break;
   416             case SDL_KEYDOWN:
   417                 if (event.key.keysym.sym == SDLK_SPACE) {
   418                     paused = !paused;
   419                     break;
   420                 }
   421                 if (event.key.keysym.sym != SDLK_ESCAPE) {
   422                     break;
   423                 }
   424             case SDL_QUIT:
   425                 done = SDL_TRUE;
   426                 break;
   427             }
   428         }
   429         SDL_Delay(fpsdelay);
   430 
   431         if (!paused) {
   432             i = (i + 1) % MOOSEFRAMES_COUNT;
   433 
   434             SDL_UpdateTexture(MooseTexture, NULL, MooseFrame[i], MOOSEPIC_W*SDL_BYTESPERPIXEL(pixel_format));
   435         }
   436         SDL_RenderClear(renderer);
   437         SDL_RenderCopy(renderer, MooseTexture, NULL, &displayrect);
   438         SDL_RenderPresent(renderer);
   439     }
   440     SDL_DestroyRenderer(renderer);
   441     quit(0);
   442     return 0;
   443 }
   444 
   445 /* vi: set ts=4 sw=4 expandtab: */