annotate test/testsprite.c @ 4426:1bceff8f008f

Fixed bug #943 Ozkan Sezer 2010-02-06 12:31:06 PST Hi: Here are some small fixes for compiling SDL against mingw-w64. (see http://mingw-w64.sourceforge.net/ . Despite the name, it supports both win32 and win64.) src/audio/windx5/directx.h and src/video/windx5/directx.h (both SDL-1.2 and SDL-1.3.) I get compilation errors about some union not having a member named u1 and alike, because of other system headers being included before this one and them already defining DUMMYUNIONNAME and stuff. This header probably assumes that those stuff are defined in windef.h, but mingw-w64 headers define them in _mingw.h. Easily fixed by moving NONAMELESSUNION definition to the top of the file. src/thread/win32/SDL_systhread.c (both SDL-1.2 and SDL-1.3.) : The __GNUC__ case for pfnSDL_CurrentBeginThread is 32-bit centric because _beginthreadex returns uintptr_t, not unsigned long which is 32 bits in win64. Changing the return type to uintptr_t fixes it. video/SDL_blit.h (and configure.in) (SDL-1.3-only) : MinGW-w64 uses msvcrt version of _aligned_malloc and _aligned_free and they are defined in intrin.h (similar to VC). Adding proper ifdefs fixes it. (Notes about macros to check: __MINGW32__ is defined for both mingw.org and for mingw-w64 for both win32 and win64, __MINGW64__ is only defined for _WIN64, so __MINGW64__ can't be used to detect mingw-w64: including _mingw.h and then checking for __MINGW64_VERSION_MAJOR does the trick.) SDL_win32video.h (SDL-1.3-only) : Tweaked the VINWER definition and location in order to avoid multiple redefinition warnings. Hope these are useful. Thanks.
author Sam Lantinga <slouken@libsdl.org>
date Wed, 10 Mar 2010 15:02:58 +0000
parents 9de326b3099c
children 27ab20a36eba
rev   line source
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1 /* Simple program: Move N sprites around on the screen as fast as possible */
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2
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3 #include <stdlib.h>
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4 #include <stdio.h>
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5 #include <string.h>
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6 #include <ctype.h>
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7 #include <time.h>
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8 #include <math.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 NUM_SPRITES 100
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13 #define MAX_SPEED 1
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14
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15 SDL_Surface *sprite;
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16 int numsprites;
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17 SDL_Rect *sprite_rects;
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18 SDL_Rect *positions;
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19 SDL_Rect *velocities;
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20 int sprites_visible;
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21 int debug_flip;
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22 Uint16 sprite_w, sprite_h;
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23
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24 /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
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25 static void
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26 quit(int rc)
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27 {
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28 SDL_Quit();
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29 exit(rc);
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30 }
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31
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32 int
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33 LoadSprite(char *file)
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34 {
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35 SDL_Surface *temp;
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36
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37 /* Load the sprite image */
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38 sprite = SDL_LoadBMP(file);
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39 if (sprite == NULL) {
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40 fprintf(stderr, "Couldn't load %s: %s", file, SDL_GetError());
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41 return (-1);
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42 }
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43
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44 /* Set transparent pixel as the pixel at (0,0) */
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45 if (sprite->format->palette) {
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46 SDL_SetColorKey(sprite, (SDL_SRCCOLORKEY | SDL_RLEACCEL),
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47 *(Uint8 *) sprite->pixels);
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48 }
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49
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50 /* Convert sprite to video format */
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51 temp = SDL_DisplayFormat(sprite);
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52 SDL_FreeSurface(sprite);
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53 if (temp == NULL) {
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54 fprintf(stderr, "Couldn't convert background: %s\n", SDL_GetError());
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55 return (-1);
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56 }
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57 sprite = temp;
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58
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59 /* We're ready to roll. :) */
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60 return (0);
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61 }
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62
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63 void
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64 MoveSprites(SDL_Surface * screen, Uint32 background)
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65 {
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66 int i, nupdates;
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67 SDL_Rect area, *position, *velocity;
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68
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69 nupdates = 0;
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70 /* Erase all the sprites if necessary */
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71 if (sprites_visible) {
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72 SDL_FillRect(screen, NULL, background);
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73 }
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74
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75 /* Move the sprite, bounce at the wall, and draw */
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76 for (i = 0; i < numsprites; ++i) {
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77 position = &positions[i];
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78 velocity = &velocities[i];
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79 position->x += velocity->x;
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80 if ((position->x < 0) || (position->x >= (screen->w - sprite_w))) {
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81 velocity->x = -velocity->x;
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82 position->x += velocity->x;
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83 }
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84 position->y += velocity->y;
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85 if ((position->y < 0) || (position->y >= (screen->h - sprite_w))) {
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86 velocity->y = -velocity->y;
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87 position->y += velocity->y;
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88 }
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89
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90 /* Blit the sprite onto the screen */
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91 area = *position;
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92 SDL_BlitSurface(sprite, NULL, screen, &area);
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93 sprite_rects[nupdates++] = area;
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94 }
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95
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96 if (debug_flip) {
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97 if ((screen->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF) {
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98 static int t = 0;
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99
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100 Uint32 color = SDL_MapRGB(screen->format, 255, 0, 0);
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101 SDL_Rect r;
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102 r.x =
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103 (sin((float) t * 2 * 3.1459) + 1.0) / 2.0 * (screen->w - 20);
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104 r.y = 0;
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105 r.w = 20;
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106 r.h = screen->h;
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107
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108 SDL_FillRect(screen, &r, color);
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109 t += 2;
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110 }
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111 }
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112
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113 /* Update the screen! */
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114 if ((screen->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF) {
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115 SDL_Flip(screen);
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116 } else {
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117 SDL_UpdateRects(screen, nupdates, sprite_rects);
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118 }
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119 sprites_visible = 1;
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120 }
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121
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122 /* This is a way of telling whether or not to use hardware surfaces */
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123 Uint32
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124 FastestFlags(Uint32 flags, int width, int height, int bpp)
0
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125 {
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126 const SDL_VideoInfo *info;
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127
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128 /* Hardware acceleration is only used in fullscreen mode */
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129 flags |= SDL_FULLSCREEN;
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130
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131 /* Check for various video capabilities */
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132 info = SDL_GetVideoInfo();
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133 if (info->blit_hw_CC && info->blit_fill) {
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134 /* We use accelerated colorkeying and color filling */
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135 flags |= SDL_HWSURFACE;
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136 }
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137 /* If we have enough video memory, and will use accelerated
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138 blits directly to it, then use page flipping.
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139 */
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140 if ((flags & SDL_HWSURFACE) == SDL_HWSURFACE) {
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141 /* Direct hardware blitting without double-buffering
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142 causes really bad flickering.
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143 */
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144 if (info->video_mem * 1024 > (height * width * bpp / 8)) {
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145 flags |= SDL_DOUBLEBUF;
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146 } else {
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147 flags &= ~SDL_HWSURFACE;
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148 }
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149 }
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150
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151 /* Return the flags */
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152 return (flags);
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153 }
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154
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155 int
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156 main(int argc, char *argv[])
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157 {
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158 SDL_Surface *screen;
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159 Uint8 *mem;
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160 int width, height;
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161 Uint8 video_bpp;
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162 Uint32 videoflags;
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163 Uint32 background;
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164 int i, done;
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165 SDL_Event event;
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166 Uint32 then, now, frames;
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167
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168 /* Initialize SDL */
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169 if (SDL_Init(SDL_INIT_VIDEO) < 0) {
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170 fprintf(stderr, "Couldn't initialize SDL: %s\n", SDL_GetError());
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171 return (1);
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172 }
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173
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174 numsprites = NUM_SPRITES;
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175 videoflags = SDL_SWSURFACE | SDL_ANYFORMAT;
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176 width = 640;
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177 height = 480;
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178 video_bpp = 8;
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179 debug_flip = 0;
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180 while (argc > 1) {
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181 --argc;
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182 if (strcmp(argv[argc - 1], "-width") == 0) {
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183 width = atoi(argv[argc]);
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184 --argc;
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185 } else if (strcmp(argv[argc - 1], "-height") == 0) {
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186 height = atoi(argv[argc]);
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187 --argc;
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188 } else if (strcmp(argv[argc - 1], "-bpp") == 0) {
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189 video_bpp = atoi(argv[argc]);
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190 videoflags &= ~SDL_ANYFORMAT;
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191 --argc;
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192 } else if (strcmp(argv[argc], "-fast") == 0) {
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193 videoflags = FastestFlags(videoflags, width, height, video_bpp);
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194 } else if (strcmp(argv[argc], "-hw") == 0) {
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195 videoflags ^= SDL_HWSURFACE;
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196 } else if (strcmp(argv[argc], "-flip") == 0) {
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197 videoflags ^= SDL_DOUBLEBUF;
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198 } else if (strcmp(argv[argc], "-debugflip") == 0) {
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199 debug_flip ^= 1;
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200 } else if (strcmp(argv[argc], "-fullscreen") == 0) {
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201 videoflags ^= SDL_FULLSCREEN;
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202 } else if (isdigit(argv[argc][0])) {
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203 numsprites = atoi(argv[argc]);
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204 } else {
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205 fprintf(stderr,
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206 "Usage: %s [-bpp N] [-hw] [-flip] [-fast] [-fullscreen] [numsprites]\n",
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207 argv[0]);
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208 quit(1);
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209 }
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210 }
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211
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212 /* Set video mode */
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213 screen = SDL_SetVideoMode(width, height, video_bpp, videoflags);
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214 if (!screen) {
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215 fprintf(stderr, "Couldn't set %dx%d video mode: %s\n",
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216 width, height, SDL_GetError());
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217 quit(2);
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218 }
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219
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220 /* Load the sprite */
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221 if (LoadSprite("icon.bmp") < 0) {
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222 quit(1);
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223 }
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224
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225 /* Allocate memory for the sprite info */
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226 mem = (Uint8 *) malloc(4 * sizeof(SDL_Rect) * numsprites);
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227 if (mem == NULL) {
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228 SDL_FreeSurface(sprite);
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229 fprintf(stderr, "Out of memory!\n");
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230 quit(2);
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231 }
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232 sprite_rects = (SDL_Rect *) mem;
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233 positions = sprite_rects;
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234 sprite_rects += numsprites;
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235 velocities = sprite_rects;
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236 sprite_rects += numsprites;
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237 sprite_w = sprite->w;
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238 sprite_h = sprite->h;
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239 srand(time(NULL));
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240 for (i = 0; i < numsprites; ++i) {
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241 positions[i].x = rand() % (screen->w - sprite_w);
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242 positions[i].y = rand() % (screen->h - sprite_h);
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243 positions[i].w = sprite->w;
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244 positions[i].h = sprite->h;
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245 velocities[i].x = 0;
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246 velocities[i].y = 0;
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247 while (!velocities[i].x && !velocities[i].y) {
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248 velocities[i].x = (rand() % (MAX_SPEED * 2 + 1)) - MAX_SPEED;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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249 velocities[i].y = (rand() % (MAX_SPEED * 2 + 1)) - MAX_SPEED;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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250 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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251 }
2792
c2d9b1aff59f Show the grey background first before starting to blit sprites
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diff changeset
252
c2d9b1aff59f Show the grey background first before starting to blit sprites
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diff changeset
253 /* Clear the background to grey */
2790
8c9fa61a521c Both testsprite and testsprite2 use a grey background
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diff changeset
254 background = SDL_MapRGB(screen->format, 0xA0, 0xA0, 0xA0);
2792
c2d9b1aff59f Show the grey background first before starting to blit sprites
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255 SDL_FillRect(screen, NULL, background);
c2d9b1aff59f Show the grey background first before starting to blit sprites
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256 SDL_Flip(screen);
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74212992fb08 Initial revision
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257
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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258 /* Print out information about our surfaces */
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259 printf("Screen is at %d bits per pixel\n", screen->format->BitsPerPixel);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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260 if ((screen->flags & SDL_HWSURFACE) == SDL_HWSURFACE) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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261 printf("Screen is in video memory\n");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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262 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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263 printf("Screen is in system memory\n");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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264 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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265 if ((screen->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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266 printf("Screen has double-buffering enabled\n");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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267 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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268 if ((sprite->flags & SDL_HWSURFACE) == SDL_HWSURFACE) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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269 printf("Sprite is in video memory\n");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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270 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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271 printf("Sprite is in system memory\n");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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272 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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273 /* Run a sample blit to trigger blit acceleration */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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274 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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275 SDL_Rect dst;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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276 dst.x = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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277 dst.y = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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278 dst.w = sprite->w;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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279 dst.h = sprite->h;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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280 SDL_BlitSurface(sprite, NULL, screen, &dst);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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281 SDL_FillRect(screen, &dst, background);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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282 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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283 if ((sprite->flags & SDL_HWACCEL) == SDL_HWACCEL) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
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284 printf("Sprite blit uses hardware acceleration\n");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
285 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
286 if ((sprite->flags & SDL_RLEACCEL) == SDL_RLEACCEL) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
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287 printf("Sprite blit uses RLE acceleration\n");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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288 }
0
74212992fb08 Initial revision
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diff changeset
289
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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290 /* Loop, blitting sprites and waiting for a keystroke */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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291 frames = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
292 then = SDL_GetTicks();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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293 done = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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294 sprites_visible = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
295 while (!done) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
296 /* Check for events */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
297 ++frames;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
298 while (SDL_PollEvent(&event)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
299 switch (event.type) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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300 case SDL_MOUSEBUTTONDOWN:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
301 SDL_WarpMouse(screen->w / 2, screen->h / 2);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
302 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
303 case SDL_KEYDOWN:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
304 /* Any keypress quits the app... */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
305 case SDL_QUIT:
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diff changeset
306 done = 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
307 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
308 default:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
309 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
310 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
311 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
312 MoveSprites(screen, background);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1516
diff changeset
313 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
314 SDL_FreeSurface(sprite);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
315 free(mem);
0
74212992fb08 Initial revision
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diff changeset
316
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
317 /* Print out some timing information */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
318 now = SDL_GetTicks();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1516
diff changeset
319 if (now > then) {
2786
Sam Lantinga <slouken@libsdl.org>
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diff changeset
320 double fps = ((double) frames * 1000) / (now - then);
2784
Sam Lantinga <slouken@libsdl.org>
parents: 1931
diff changeset
321 printf("%2.2f frames per second\n", fps);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1516
diff changeset
322 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1516
diff changeset
323 SDL_Quit();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1516
diff changeset
324 return (0);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
325 }