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annotate test/testblitspeed.c @ 1663:11775724e3fe SDL-1.3

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fine tuning indent output
author Sam Lantinga <slouken@libsdl.org>
date Sun, 28 May 2006 13:29:03 +0000
parents 782fd950bd46
children 4da1ee79c9af
rev   line source
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68f2b997758e Added testblitspeed to aid in profiling of SDL's blitters.
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1 /*
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2 * Benchmarks surface-to-surface blits in various formats.
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3 *
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4 * Written by Ryan C. Gordon.
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5 */
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6
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7 #include <stdio.h>
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8 #include <stdlib.h>
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9 #include <string.h>
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10
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11 #include "SDL.h"
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12
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13 static SDL_Surface *dest = NULL;
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14 static SDL_Surface *src = NULL;
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15 static int testSeconds = 10;
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16
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17
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18 static int
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19 percent (int val, int total)
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20 {
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21 return ((int) ((((float) val) / ((float) total)) * 100.0f));
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22 }
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23
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24 static int
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25 randRange (int lo, int hi)
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26 {
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27 return (lo + (int) (((double) hi) * rand () / (RAND_MAX + 1.0)));
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28 }
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29
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30 static void
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31 copy_trunc_str (char *str, size_t strsize, const char *flagstr)
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32 {
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33 if ((strlen (str) + strlen (flagstr)) >= (strsize - 1))
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34 strcpy (str + (strsize - 5), " ...");
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35 else
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36 strcat (str, flagstr);
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37 }
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38
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39 static void
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40 __append_sdl_surface_flag (SDL_Surface * _surface, char *str,
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41 size_t strsize, Uint32 flag, const char *flagstr)
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42 {
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43 if (_surface->flags & flag)
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44 copy_trunc_str (str, strsize, flagstr);
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45 }
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46
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47
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48 #define append_sdl_surface_flag(a, b, c, fl) __append_sdl_surface_flag(a, b, c, fl, " " #fl)
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49 #define print_tf_state(str, val) printf("%s: {%s}\n", str, (val) ? "true" : "false" )
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50
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51 static void
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52 output_videoinfo_details (void)
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53 {
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54 const SDL_VideoInfo *info = SDL_GetVideoInfo ();
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55 printf ("SDL_GetVideoInfo():\n");
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56 if (info == NULL)
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57 printf (" (null.)\n");
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58 else {
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59 print_tf_state (" hardware surface available", info->hw_available);
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60 print_tf_state (" window manager available", info->wm_available);
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61 print_tf_state (" accelerated hardware->hardware blits",
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62 info->blit_hw);
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63 print_tf_state (" accelerated hardware->hardware colorkey blits",
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64 info->blit_hw_CC);
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65 print_tf_state (" accelerated hardware->hardware alpha blits",
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66 info->blit_hw_A);
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67 print_tf_state (" accelerated software->hardware blits",
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68 info->blit_sw);
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69 print_tf_state (" accelerated software->hardware colorkey blits",
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70 info->blit_sw_CC);
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71 print_tf_state (" accelerated software->hardware alpha blits",
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72 info->blit_sw_A);
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73 print_tf_state (" accelerated color fills", info->blit_fill);
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74 printf (" video memory: (%d)\n", info->video_mem);
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75 }
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76
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77 printf ("\n");
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78 }
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79
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80 static void
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81 output_surface_details (const char *name, SDL_Surface * surface)
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82 {
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83 printf ("Details for %s:\n", name);
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84
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85 if (surface == NULL) {
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86 printf ("-WARNING- You've got a NULL surface!");
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87 } else {
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88 char f[256];
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89 printf (" width : %d\n", surface->w);
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90 printf (" height : %d\n", surface->h);
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91 printf (" depth : %d bits per pixel\n",
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92 surface->format->BitsPerPixel);
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93 printf (" pitch : %d\n", (int) surface->pitch);
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94 printf (" alpha : %d\n", (int) surface->format->alpha);
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95 printf (" colorkey : 0x%X\n",
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96 (unsigned int) surface->format->colorkey);
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97
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98 printf (" red bits : 0x%08X mask, %d shift, %d loss\n",
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99 (int) surface->format->Rmask,
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100 (int) surface->format->Rshift, (int) surface->format->Rloss);
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101 printf (" green bits : 0x%08X mask, %d shift, %d loss\n",
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102 (int) surface->format->Gmask,
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103 (int) surface->format->Gshift, (int) surface->format->Gloss);
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104 printf (" blue bits : 0x%08X mask, %d shift, %d loss\n",
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105 (int) surface->format->Bmask,
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106 (int) surface->format->Bshift, (int) surface->format->Bloss);
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107 printf (" alpha bits : 0x%08X mask, %d shift, %d loss\n",
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108 (int) surface->format->Amask,
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109 (int) surface->format->Ashift, (int) surface->format->Aloss);
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110
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111 f[0] = '\0';
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112
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113 /*append_sdl_surface_flag(surface, f, sizeof (f), SDL_SWSURFACE); */
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114 if ((surface->flags & SDL_HWSURFACE) == 0)
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115 copy_trunc_str (f, sizeof (f), " SDL_SWSURFACE");
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116
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117 append_sdl_surface_flag (surface, f, sizeof (f), SDL_HWSURFACE);
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118 append_sdl_surface_flag (surface, f, sizeof (f), SDL_ASYNCBLIT);
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119 append_sdl_surface_flag (surface, f, sizeof (f), SDL_ANYFORMAT);
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120 append_sdl_surface_flag (surface, f, sizeof (f), SDL_HWPALETTE);
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121 append_sdl_surface_flag (surface, f, sizeof (f), SDL_DOUBLEBUF);
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122 append_sdl_surface_flag (surface, f, sizeof (f), SDL_FULLSCREEN);
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123 append_sdl_surface_flag (surface, f, sizeof (f), SDL_OPENGL);
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124 append_sdl_surface_flag (surface, f, sizeof (f), SDL_RESIZABLE);
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125 append_sdl_surface_flag (surface, f, sizeof (f), SDL_NOFRAME);
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126 append_sdl_surface_flag (surface, f, sizeof (f), SDL_HWACCEL);
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127 append_sdl_surface_flag (surface, f, sizeof (f), SDL_SRCCOLORKEY);
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128 append_sdl_surface_flag (surface, f, sizeof (f), SDL_RLEACCELOK);
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129 append_sdl_surface_flag (surface, f, sizeof (f), SDL_RLEACCEL);
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130 append_sdl_surface_flag (surface, f, sizeof (f), SDL_SRCALPHA);
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131 append_sdl_surface_flag (surface, f, sizeof (f), SDL_PREALLOC);
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132
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133 if (f[0] == '\0')
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134 strcpy (f, " (none)");
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135
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136 printf (" flags :%s\n", f);
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137 }
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138
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139 printf ("\n");
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140 }
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141
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142 static void
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143 output_details (void)
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144 {
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145 output_videoinfo_details ();
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146 output_surface_details ("Source Surface", src);
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147 output_surface_details ("Destination Surface", dest);
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148 }
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149
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150 static Uint32
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151 blit (SDL_Surface * dst, SDL_Surface * src, int x, int y)
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152 {
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153 Uint32 start = 0;
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154 SDL_Rect srcRect;
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155 SDL_Rect dstRect;
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156
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157 srcRect.x = 0;
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158 srcRect.y = 0;
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159 dstRect.x = x;
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160 dstRect.y = y;
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161 dstRect.w = srcRect.w = src->w; /* SDL will clip as appropriate. */
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162 dstRect.h = srcRect.h = src->h;
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163
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164 start = SDL_GetTicks ();
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165 SDL_BlitSurface (src, &srcRect, dst, &dstRect);
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166 return (SDL_GetTicks () - start);
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167 }
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168
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169 static void
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170 blitCentered (SDL_Surface * dst, SDL_Surface * src)
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171 {
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172 int x = (dst->w - src->w) / 2;
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173 int y = (dst->h - src->h) / 2;
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174 blit (dst, src, x, y);
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175 }
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176
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177 static int
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178 atoi_hex (const char *str)
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179 {
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180 if (str == NULL)
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181 return 0;
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182
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183 if (strlen (str) > 2) {
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184 int retval = 0;
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185 if ((str[0] == '0') && (str[1] == 'x'))
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186 sscanf (str + 2, "%X", &retval);
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187 return (retval);
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188 }
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189
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190 return (atoi (str));
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191 }
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192
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193
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194 static int
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195 setup_test (int argc, char **argv)
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196 {
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197 const char *dumpfile = NULL;
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198 SDL_Surface *bmp = NULL;
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199 Uint32 dstbpp = 32;
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200 Uint32 dstrmask = 0x00FF0000;
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201 Uint32 dstgmask = 0x0000FF00;
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202 Uint32 dstbmask = 0x000000FF;
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203 Uint32 dstamask = 0x00000000;
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204 Uint32 dstflags = 0;
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205 int dstw = 640;
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206 int dsth = 480;
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207 Uint32 srcbpp = 32;
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208 Uint32 srcrmask = 0x00FF0000;
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209 Uint32 srcgmask = 0x0000FF00;
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210 Uint32 srcbmask = 0x000000FF;
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211 Uint32 srcamask = 0x00000000;
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212 Uint32 srcflags = 0;
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213 int srcw = 640;
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214 int srch = 480;
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215 Uint32 origsrcalphaflags = 0;
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216 Uint32 origdstalphaflags = 0;
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217 Uint32 srcalphaflags = 0;
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218 Uint32 dstalphaflags = 0;
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219 int srcalpha = 255;
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220 int dstalpha = 255;
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221 int screenSurface = 0;
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222 int i = 0;
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223
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224 for (i = 1; i < argc; i++) {
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225 const char *arg = argv[i];
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226
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227 if (strcmp (arg, "--dstbpp") == 0)
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228 dstbpp = atoi (argv[++i]);
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229 else if (strcmp (arg, "--dstrmask") == 0)
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230 dstrmask = atoi_hex (argv[++i]);
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231 else if (strcmp (arg, "--dstgmask") == 0)
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232 dstgmask = atoi_hex (argv[++i]);
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233 else if (strcmp (arg, "--dstbmask") == 0)
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234 dstbmask = atoi_hex (argv[++i]);
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235 else if (strcmp (arg, "--dstamask") == 0)
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236 dstamask = atoi_hex (argv[++i]);
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diff changeset
237 else if (strcmp (arg, "--dstwidth") == 0)
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diff changeset
238 dstw = atoi (argv[++i]);
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diff changeset
239 else if (strcmp (arg, "--dstheight") == 0)
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diff changeset
240 dsth = atoi (argv[++i]);
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diff changeset
241 else if (strcmp (arg, "--dsthwsurface") == 0)
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242 dstflags |= SDL_HWSURFACE;
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243 else if (strcmp (arg, "--srcbpp") == 0)
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244 srcbpp = atoi (argv[++i]);
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245 else if (strcmp (arg, "--srcrmask") == 0)
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diff changeset
246 srcrmask = atoi_hex (argv[++i]);
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247 else if (strcmp (arg, "--srcgmask") == 0)
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248 srcgmask = atoi_hex (argv[++i]);
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249 else if (strcmp (arg, "--srcbmask") == 0)
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diff changeset
250 srcbmask = atoi_hex (argv[++i]);
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251 else if (strcmp (arg, "--srcamask") == 0)
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252 srcamask = atoi_hex (argv[++i]);
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253 else if (strcmp (arg, "--srcwidth") == 0)
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254 srcw = atoi (argv[++i]);
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255 else if (strcmp (arg, "--srcheight") == 0)
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256 srch = atoi (argv[++i]);
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257 else if (strcmp (arg, "--srchwsurface") == 0)
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258 srcflags |= SDL_HWSURFACE;
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259 else if (strcmp (arg, "--seconds") == 0)
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diff changeset
260 testSeconds = atoi (argv[++i]);
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diff changeset
261 else if (strcmp (arg, "--screen") == 0)
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262 screenSurface = 1;
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263 else if (strcmp (arg, "--dumpfile") == 0)
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264 dumpfile = argv[++i];
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265 /* !!! FIXME: set colorkey. */
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266 else if (0) { /* !!! FIXME: we handle some commandlines elsewhere now */
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diff changeset
267 fprintf (stderr, "Unknown commandline option: %s\n", arg);
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268 return (0);
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269 }
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270 }
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271
1662
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diff changeset
272 if (SDL_Init (SDL_INIT_VIDEO) == -1) {
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273 fprintf (stderr, "SDL_Init failed: %s\n", SDL_GetError ());
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274 return (0);
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diff changeset
275 }
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276
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277 bmp = SDL_LoadBMP ("sample.bmp");
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278 if (bmp == NULL) {
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diff changeset
279 fprintf (stderr, "SDL_LoadBMP failed: %s\n", SDL_GetError ());
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280 SDL_Quit ();
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281 return (0);
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282 }
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diff changeset
283
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284 if ((dstflags & SDL_HWSURFACE) == 0)
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285 dstflags |= SDL_SWSURFACE;
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diff changeset
286 if ((srcflags & SDL_HWSURFACE) == 0)
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287 srcflags |= SDL_SWSURFACE;
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diff changeset
288
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diff changeset
289 if (screenSurface)
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290 dest = SDL_SetVideoMode (dstw, dsth, dstbpp, dstflags);
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diff changeset
291 else {
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diff changeset
292 dest = SDL_CreateRGBSurface (dstflags, dstw, dsth, dstbpp,
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diff changeset
293 dstrmask, dstgmask, dstbmask, dstamask);
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diff changeset
294 }
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diff changeset
295
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diff changeset
296 if (dest == NULL) {
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297 fprintf (stderr, "dest surface creation failed: %s\n",
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diff changeset
298 SDL_GetError ());
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299 SDL_Quit ();
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300 return (0);
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diff changeset
301 }
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diff changeset
302
1662
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diff changeset
303 src = SDL_CreateRGBSurface (srcflags, srcw, srch, srcbpp,
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diff changeset
304 srcrmask, srcgmask, srcbmask, srcamask);
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diff changeset
305 if (src == NULL) {
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diff changeset
306 fprintf (stderr, "src surface creation failed: %s\n",
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diff changeset
307 SDL_GetError ());
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diff changeset
308 SDL_Quit ();
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diff changeset
309 return (0);
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diff changeset
310 }
68f2b997758e Added testblitspeed to aid in profiling of SDL's blitters.
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diff changeset
311
1231
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diff changeset
312 /* handle alpha settings... */
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diff changeset
313 srcalphaflags = (src->flags & SDL_SRCALPHA) | (src->flags & SDL_RLEACCEL);
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diff changeset
314 dstalphaflags =
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diff changeset
315 (dest->flags & SDL_SRCALPHA) | (dest->flags & SDL_RLEACCEL);
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316 origsrcalphaflags = srcalphaflags;
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317 origdstalphaflags = dstalphaflags;
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318 srcalpha = src->format->alpha;
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319 dstalpha = dest->format->alpha;
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diff changeset
320 for (i = 1; i < argc; i++) {
1231
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diff changeset
321 const char *arg = argv[i];
cf59e7b91ed4 testblitspeed.c improvements: cleaned up output, and allow user to set surface
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diff changeset
322
1662
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diff changeset
323 if (strcmp (arg, "--srcalpha") == 0)
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diff changeset
324 srcalpha = atoi (argv[++i]);
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diff changeset
325 else if (strcmp (arg, "--dstalpha") == 0)
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diff changeset
326 dstalpha = atoi (argv[++i]);
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diff changeset
327 else if (strcmp (arg, "--srcsrcalpha") == 0)
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diff changeset
328 srcalphaflags |= SDL_SRCALPHA;
1662
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diff changeset
329 else if (strcmp (arg, "--srcnosrcalpha") == 0)
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diff changeset
330 srcalphaflags &= ~SDL_SRCALPHA;
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diff changeset
331 else if (strcmp (arg, "--srcrleaccel") == 0)
1231
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diff changeset
332 srcalphaflags |= SDL_RLEACCEL;
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diff changeset
333 else if (strcmp (arg, "--srcnorleaccel") == 0)
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diff changeset
334 srcalphaflags &= ~SDL_RLEACCEL;
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diff changeset
335 else if (strcmp (arg, "--dstsrcalpha") == 0)
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diff changeset
336 dstalphaflags |= SDL_SRCALPHA;
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diff changeset
337 else if (strcmp (arg, "--dstnosrcalpha") == 0)
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diff changeset
338 dstalphaflags &= ~SDL_SRCALPHA;
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diff changeset
339 else if (strcmp (arg, "--dstrleaccel") == 0)
1231
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diff changeset
340 dstalphaflags |= SDL_RLEACCEL;
1662
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diff changeset
341 else if (strcmp (arg, "--dstnorleaccel") == 0)
1231
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diff changeset
342 dstalphaflags &= ~SDL_RLEACCEL;
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diff changeset
343 }
1662
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diff changeset
344 if ((dstalphaflags != origdstalphaflags)
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diff changeset
345 || (dstalpha != dest->format->alpha))
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diff changeset
346 SDL_SetAlpha (dest, dstalphaflags, (Uint8) dstalpha);
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347 if ((srcalphaflags != origsrcalphaflags)
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348 || (srcalpha != src->format->alpha))
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349 SDL_SetAlpha (src, srcalphaflags, (Uint8) srcalpha);
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350
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351 /* set some sane defaults so we can see if the blit code is broken... */
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352 SDL_FillRect (dest, NULL, SDL_MapRGB (dest->format, 0, 0, 0));
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353 SDL_FillRect (src, NULL, SDL_MapRGB (src->format, 0, 0, 0));
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354
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355 blitCentered (src, bmp);
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356 SDL_FreeSurface (bmp);
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357
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358 if (dumpfile)
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359 SDL_SaveBMP (src, dumpfile); /* make sure initial convert is sane. */
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360
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361 output_details ();
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362
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363 return (1);
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364 }
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365
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366
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367 static void
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368 test_blit_speed (void)
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369 {
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370 Uint32 clearColor = SDL_MapRGB (dest->format, 0, 0, 0);
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371 Uint32 iterations = 0;
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372 Uint32 elasped = 0;
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373 Uint32 end = 0;
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374 Uint32 now = 0;
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375 Uint32 last = 0;
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376 int testms = testSeconds * 1000;
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377 int wmax = (dest->w - src->w);
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378 int hmax = (dest->h - src->h);
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379 int isScreen = (SDL_GetVideoSurface () == dest);
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380 SDL_Event event;
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381
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382 printf ("Testing blit speed for %d seconds...\n", testSeconds);
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383
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384 now = SDL_GetTicks ();
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385 end = now + testms;
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386
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387 do {
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388 /* pump the event queue occasionally to keep OS happy... */
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389 if (now - last > 1000) {
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390 last = now;
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391 while (SDL_PollEvent (&event)) { /* no-op. */
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392 }
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393 }
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394
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395 iterations++;
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396 elasped += blit (dest, src, randRange (0, wmax), randRange (0, hmax));
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397 if (isScreen) {
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398 SDL_Flip (dest); /* show it! */
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399 SDL_FillRect (dest, NULL, clearColor); /* blank it for next time! */
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400 }
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401
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402 now = SDL_GetTicks ();
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403 }
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404 while (now < end);
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405
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406 printf ("Non-blitting crap accounted for %d percent of this run.\n",
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407 percent (testms - elasped, testms));
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408
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409 printf ("%d blits took %d ms (%d fps).\n",
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410 (int) iterations,
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411 (int) elasped,
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412 (int) (((float) iterations) / (((float) elasped) / 1000.0f)));
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413 }
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414
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415 int
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416 main (int argc, char **argv)
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417 {
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418 int initialized = setup_test (argc, argv);
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419 if (initialized) {
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420 test_blit_speed ();
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421 SDL_Quit ();
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422 }
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423 return (!initialized);
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424 }
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425
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426 /* end of testblitspeed.c ... */