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annotate src/video/SDL_surface.c @ 1670:eef792d31de8 SDL-1.3

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Work in progress. :)
author Sam Lantinga <slouken@libsdl.org>
date Wed, 07 Jun 2006 16:10:28 +0000
parents 4da1ee79c9af
children 8e754b82cecc
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
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24 #include "SDL_video.h"
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25 #include "SDL_sysvideo.h"
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26 #include "SDL_cursor_c.h"
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27 #include "SDL_blit.h"
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28 #include "SDL_RLEaccel_c.h"
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29 #include "SDL_pixels_c.h"
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30 #include "SDL_leaks.h"
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31
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32
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33 /* Public routines */
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34 /*
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35 * Create an empty RGB surface of the appropriate depth
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36 */
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37 SDL_Surface *
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38 SDL_CreateRGBSurface(Uint32 flags,
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39 int width, int height, int depth,
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40 Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask)
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41 {
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42 SDL_VideoDevice *_this = SDL_GetVideoDevice();
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43 SDL_Surface *screen;
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44 SDL_Surface *surface;
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45
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46 /* FIXME!! */
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47 /* Make sure the size requested doesn't overflow our datatypes */
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48 /* Next time I write a library like SDL, I'll use int for size. :) */
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49 if (width >= 16384 || height >= 65536) {
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50 SDL_SetError("Width or height is too large");
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51 return (NULL);
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52 }
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53
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54 /* Allocate the surface */
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55 surface = (SDL_Surface *) SDL_malloc(sizeof(*surface));
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56 if (surface == NULL) {
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57 SDL_OutOfMemory();
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58 return (NULL);
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59 }
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60 surface->flags = 0;
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61 surface->format = SDL_AllocFormat(depth, Rmask, Gmask, Bmask, Amask);
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62 if (surface->format == NULL) {
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63 SDL_free(surface);
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64 return (NULL);
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65 }
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66 if (Amask) {
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67 surface->flags |= SDL_SRCALPHA;
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68 }
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69 surface->w = width;
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70 surface->h = height;
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71 surface->pitch = SDL_CalculatePitch(surface);
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72 surface->pixels = NULL;
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73 surface->hwdata = NULL;
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74 surface->locked = 0;
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75 surface->map = NULL;
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76 SDL_SetClipRect(surface, NULL);
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77 SDL_FormatChanged(surface);
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78
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79 /* Get the pixels */
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80 if (surface->w && surface->h) {
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81 surface->pixels = SDL_malloc(surface->h * surface->pitch);
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82 if (surface->pixels == NULL) {
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83 SDL_FreeSurface(surface);
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84 SDL_OutOfMemory();
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85 return NULL;
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86 }
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87 /* This is important for bitmaps */
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88 SDL_memset(surface->pixels, 0, surface->h * surface->pitch);
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89 }
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90
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91 /* Allocate an empty mapping */
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92 surface->map = SDL_AllocBlitMap();
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93 if (surface->map == NULL) {
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94 SDL_FreeSurface(surface);
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95 return (NULL);
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96 }
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97
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98 /* The surface is ready to go */
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99 surface->refcount = 1;
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100 #ifdef CHECK_LEAKS
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101 ++surfaces_allocated;
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102 #endif
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103 return (surface);
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104 }
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105
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106 /*
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107 * Create an RGB surface from an existing memory buffer
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108 */
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109 SDL_Surface *
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110 SDL_CreateRGBSurfaceFrom(void *pixels,
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111 int width, int height, int depth, int pitch,
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112 Uint32 Rmask, Uint32 Gmask, Uint32 Bmask,
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113 Uint32 Amask)
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114 {
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115 SDL_Surface *surface;
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116
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117 surface = SDL_CreateRGBSurface(SDL_SWSURFACE, 0, 0, depth,
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118 Rmask, Gmask, Bmask, Amask);
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119 if (surface != NULL) {
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120 surface->flags |= SDL_PREALLOC;
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121 surface->pixels = pixels;
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122 surface->w = width;
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123 surface->h = height;
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124 surface->pitch = pitch;
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125 SDL_SetClipRect(surface, NULL);
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126 }
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127 return surface;
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128 }
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129
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130 SDL_Surface *
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131 SDL_CreateRGBSurfaceFromTexture(SDL_TextureID textureID)
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132 {
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133 SDL_Surface *surface;
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134 Uint32 format;
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135 int w, h;
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136 int bpp;
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137 Uint32 Rmask, Gmask, Bmask, Amask;
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138
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diff changeset
139 if (SDL_QueryTexture(textureID, &format, NULL, &w, &h) < 0) {
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140 return NULL;
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141 }
eef792d31de8 Work in progress. :)
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142
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diff changeset
143 if (!SDL_PixelFormatEnumToMasks
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144 (format, &bpp, &Rmask, &Gmask, &Bmask, &Amask)) {
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145 SDL_SetError("Unknown texture format");
eef792d31de8 Work in progress. :)
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146 return NULL;
eef792d31de8 Work in progress. :)
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147 }
eef792d31de8 Work in progress. :)
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148
eef792d31de8 Work in progress. :)
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149 surface = SDL_CreateRGBSurface(SDL_SWSURFACE, 0, 0, bpp,
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150 Rmask, Gmask, Bmask, Amask);
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151 if (surface != NULL) {
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152 surface->flags |= (SDL_HWSURFACE | SDL_PREALLOC);
eef792d31de8 Work in progress. :)
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153 surface->w = width;
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154 surface->h = height;
eef792d31de8 Work in progress. :)
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155 SDL_SetClipRect(surface, NULL);
eef792d31de8 Work in progress. :)
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diff changeset
156 }
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diff changeset
157 return surface;
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158 }
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159
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160 /*
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161 * Set the palette in a blittable surface
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162 */
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163 int
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164 SDL_SetColors(SDL_Surface * surface, SDL_Color * colors, int firstcolor,
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165 int ncolors)
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166 {
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167 SDL_Palette *pal;
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168 int gotall;
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169 int palsize;
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170
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171 /* Verify the parameters */
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172 pal = surface->format->palette;
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173 if (!pal) {
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174 return 0; /* not a palettized surface */
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175 }
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176 gotall = 1;
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177 palsize = 1 << surface->format->BitsPerPixel;
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178 if (ncolors > (palsize - firstcolor)) {
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179 ncolors = (palsize - firstcolor);
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180 gotall = 0;
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181 }
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182
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183 if (colors != (pal->colors + firstcolor)) {
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184 SDL_memcpy(pal->colors + firstcolor, colors,
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185 ncolors * sizeof(*colors));
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186 }
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187 SDL_FormatChanged(surface);
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188
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189 if (surface->flags & (SDL_SHADOW_SURFACE | SDL_SCREEN_SURFACE)) {
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190 gotall &= SDL_SetScreenColors(surface, colors, firstcolor, ncolors);
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191 }
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192 return gotall;
0
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193 }
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194
0
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195 /*
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196 * Set the color key in a blittable surface
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197 */
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198 int
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199 SDL_SetColorKey(SDL_Surface * surface, Uint32 flag, Uint32 key)
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200 {
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201 /* Sanity check the flag as it gets passed in */
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202 if (flag & SDL_SRCCOLORKEY) {
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203 if (flag & (SDL_RLEACCEL | SDL_RLEACCELOK)) {
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204 flag = (SDL_SRCCOLORKEY | SDL_RLEACCELOK);
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205 } else {
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206 flag = SDL_SRCCOLORKEY;
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207 }
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208 } else {
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209 flag = 0;
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210 }
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211
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212 /* Optimize away operations that don't change anything */
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213 if ((flag == (surface->flags & (SDL_SRCCOLORKEY | SDL_RLEACCELOK))) &&
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214 (key == surface->format->colorkey)) {
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215 return (0);
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216 }
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diff changeset
217
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218 /* UnRLE surfaces before we change the colorkey */
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219 if (surface->flags & SDL_RLEACCEL) {
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220 SDL_UnRLESurface(surface, 1);
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221 }
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222
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diff changeset
223 if (flag) {
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224 SDL_VideoDevice *_this = SDL_GetVideoDevice();
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225
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226 surface->flags |= SDL_SRCCOLORKEY;
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227 surface->format->colorkey = key;
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228 if ((surface->flags & SDL_HWACCEL) == SDL_HWACCEL) {
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229 if ((_this->SetHWColorKey == NULL) ||
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230 (_this->SetHWColorKey(_this, surface, key) < 0)) {
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231 surface->flags &= ~SDL_HWACCEL;
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232 }
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233 }
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diff changeset
234 if (flag & SDL_RLEACCELOK) {
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235 surface->flags |= SDL_RLEACCELOK;
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236 } else {
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237 surface->flags &= ~SDL_RLEACCELOK;
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238 }
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diff changeset
239 } else {
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240 surface->flags &= ~(SDL_SRCCOLORKEY | SDL_RLEACCELOK);
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241 surface->format->colorkey = 0;
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242 }
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243 SDL_InvalidateMap(surface->map);
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244 return (0);
0
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245 }
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diff changeset
246
431
41cadcba32e8 Fixed SDL_DisplayFormatAlpha() on RGB surfaces with alpha
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parents: 422
diff changeset
247 /* This function sets the alpha channel of a surface */
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248 int
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249 SDL_SetAlpha(SDL_Surface * surface, Uint32 flag, Uint8 value)
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250 {
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diff changeset
251 Uint32 oldflags = surface->flags;
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252 Uint32 oldalpha = surface->format->alpha;
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253
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254 /* Sanity check the flag as it gets passed in */
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diff changeset
255 if (flag & SDL_SRCALPHA) {
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diff changeset
256 if (flag & (SDL_RLEACCEL | SDL_RLEACCELOK)) {
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257 flag = (SDL_SRCALPHA | SDL_RLEACCELOK);
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258 } else {
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259 flag = SDL_SRCALPHA;
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260 }
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diff changeset
261 } else {
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diff changeset
262 flag = 0;
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263 }
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264
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265 /* Optimize away operations that don't change anything */
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266 if ((flag == (surface->flags & (SDL_SRCALPHA | SDL_RLEACCELOK))) &&
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diff changeset
267 (!flag || value == oldalpha)) {
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diff changeset
268 return (0);
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diff changeset
269 }
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diff changeset
270
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271 if (!(flag & SDL_RLEACCELOK) && (surface->flags & SDL_RLEACCEL))
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272 SDL_UnRLESurface(surface, 1);
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273
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274 if (flag) {
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275 SDL_VideoDevice *_this = SDL_GetVideoDevice();
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276
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277 surface->flags |= SDL_SRCALPHA;
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278 surface->format->alpha = value;
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279 if ((surface->flags & SDL_HWACCEL) == SDL_HWACCEL) {
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280 if ((_this->SetHWAlpha == NULL) ||
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281 (_this->SetHWAlpha(_this, surface, value) < 0)) {
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282 surface->flags &= ~SDL_HWACCEL;
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283 }
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284 }
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285 if (flag & SDL_RLEACCELOK) {
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286 surface->flags |= SDL_RLEACCELOK;
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287 } else {
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288 surface->flags &= ~SDL_RLEACCELOK;
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289 }
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290 } else {
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291 surface->flags &= ~SDL_SRCALPHA;
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292 surface->format->alpha = SDL_ALPHA_OPAQUE;
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293 }
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294 /*
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295 * The representation for software surfaces is independent of
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296 * per-surface alpha, so no need to invalidate the blit mapping
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297 * if just the alpha value was changed. (If either is 255, we still
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298 * need to invalidate.)
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299 */
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300 if ((surface->flags & SDL_HWACCEL) == SDL_HWACCEL
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301 || oldflags != surface->flags
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302 || (((oldalpha + 1) ^ (value + 1)) & 0x100))
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303 SDL_InvalidateMap(surface->map);
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304 return (0);
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305 }
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306
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307 int
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308 SDL_SetAlphaChannel(SDL_Surface * surface, Uint8 value)
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309 {
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310 int row, col;
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311 int offset;
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312 Uint8 *buf;
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313
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314 if ((surface->format->Amask != 0xFF000000) &&
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315 (surface->format->Amask != 0x000000FF)) {
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316 SDL_SetError("Unsupported surface alpha mask format");
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317 return -1;
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318 }
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319 #if SDL_BYTEORDER == SDL_LIL_ENDIAN
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320 if (surface->format->Amask == 0xFF000000) {
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321 offset = 3;
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322 } else {
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323 offset = 0;
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324 }
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325 #else
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326 if (surface->format->Amask == 0xFF000000) {
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327 offset = 0;
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328 } else {
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329 offset = 3;
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330 }
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331 #endif /* Byte ordering */
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332
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333 /* Quickly set the alpha channel of an RGBA or ARGB surface */
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334 if (SDL_MUSTLOCK(surface)) {
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335 if (SDL_LockSurface(surface) < 0) {
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336 return -1;
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337 }
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338 }
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339 row = surface->h;
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340 while (row--) {
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341 col = surface->w;
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342 buf = (Uint8 *) surface->pixels + row * surface->pitch + offset;
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343 while (col--) {
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344 *buf = value;
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345 buf += 4;
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346 }
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347 }
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348 if (SDL_MUSTLOCK(surface)) {
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349 SDL_UnlockSurface(surface);
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350 }
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351 return 0;
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352 }
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353
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354 /*
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355 * A function to calculate the intersection of two rectangles:
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356 * return true if the rectangles intersect, false otherwise
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357 */
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358 static __inline__ SDL_bool
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359 SDL_IntersectRect(const SDL_Rect * A, const SDL_Rect * B,
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360 SDL_Rect * intersection)
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361 {
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362 int Amin, Amax, Bmin, Bmax;
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363
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364 /* Horizontal intersection */
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365 Amin = A->x;
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366 Amax = Amin + A->w;
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367 Bmin = B->x;
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368 Bmax = Bmin + B->w;
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369 if (Bmin > Amin)
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370 Amin = Bmin;
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371 intersection->x = Amin;
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372 if (Bmax < Amax)
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373 Amax = Bmax;
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374 intersection->w = Amax - Amin > 0 ? Amax - Amin : 0;
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375
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376 /* Vertical intersection */
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377 Amin = A->y;
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378 Amax = Amin + A->h;
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379 Bmin = B->y;
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380 Bmax = Bmin + B->h;
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381 if (Bmin > Amin)
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382 Amin = Bmin;
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383 intersection->y = Amin;
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384 if (Bmax < Amax)
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385 Amax = Bmax;
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386 intersection->h = Amax - Amin > 0 ? Amax - Amin : 0;
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387
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388 return (intersection->w && intersection->h);
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389 }
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390
0
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391 /*
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392 * Set the clipping rectangle for a blittable surface
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393 */
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394 SDL_bool
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395 SDL_SetClipRect(SDL_Surface * surface, const SDL_Rect * rect)
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396 {
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397 SDL_Rect full_rect;
0
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398
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399 /* Don't do anything if there's no surface to act on */
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400 if (!surface) {
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401 return SDL_FALSE;
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diff changeset
402 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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403
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
404 /* Set up the full surface rectangle */
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405 full_rect.x = 0;
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diff changeset
406 full_rect.y = 0;
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407 full_rect.w = surface->w;
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diff changeset
408 full_rect.h = surface->h;
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diff changeset
409
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diff changeset
410 /* Set the clipping rectangle */
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diff changeset
411 if (!rect) {
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diff changeset
412 surface->clip_rect = full_rect;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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413 return 1;
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414 }
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415 return SDL_IntersectRect(rect, &full_rect, &surface->clip_rect);
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416 }
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diff changeset
417
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diff changeset
418 void
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419 SDL_GetClipRect(SDL_Surface * surface, SDL_Rect * rect)
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420 {
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421 if (surface && rect) {
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422 *rect = surface->clip_rect;
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423 }
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424 }
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425
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diff changeset
426 /*
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diff changeset
427 * Set up a blit between two surfaces -- split into three parts:
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428 * The upper part, SDL_UpperBlit(), performs clipping and rectangle
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429 * verification. The lower part is a pointer to a low level
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430 * accelerated blitting function.
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431 *
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432 * These parts are separated out and each used internally by this
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433 * library in the optimimum places. They are exported so that if
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434 * you know exactly what you are doing, you can optimize your code
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diff changeset
435 * by calling the one(s) you need.
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436 */
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diff changeset
437 int
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438 SDL_LowerBlit(SDL_Surface * src, SDL_Rect * srcrect,
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439 SDL_Surface * dst, SDL_Rect * dstrect)
0
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diff changeset
440 {
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diff changeset
441 SDL_blit do_blit;
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diff changeset
442
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diff changeset
443 /* Check to make sure the blit mapping is valid */
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diff changeset
444 if ((src->map->dst != dst) ||
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
445 (src->map->dst->format_version != src->map->format_version)) {
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diff changeset
446 if (SDL_MapSurface(src, dst) < 0) {
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diff changeset
447 return (-1);
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diff changeset
448 }
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diff changeset
449 }
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diff changeset
450
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
451 /* Figure out which blitter to use */
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diff changeset
452 if ((src->flags & SDL_HWACCEL) == SDL_HWACCEL) {
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diff changeset
453 do_blit = src->map->hw_blit;
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diff changeset
454 } else {
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diff changeset
455 do_blit = src->map->sw_blit;
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diff changeset
456 }
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457 return (do_blit(src, srcrect, dst, dstrect));
0
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458 }
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diff changeset
459
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diff changeset
460
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diff changeset
461 int
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462 SDL_UpperBlit(SDL_Surface * src, SDL_Rect * srcrect,
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463 SDL_Surface * dst, SDL_Rect * dstrect)
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diff changeset
464 {
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465 SDL_Rect fulldst;
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466 int srcx, srcy, w, h;
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diff changeset
467
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468 /* Make sure the surfaces aren't locked */
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diff changeset
469 if (!src || !dst) {
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470 SDL_SetError("SDL_UpperBlit: passed a NULL surface");
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471 return (-1);
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diff changeset
472 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
473 if (src->locked || dst->locked) {
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diff changeset
474 SDL_SetError("Surfaces must not be locked during blit");
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475 return (-1);
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diff changeset
476 }
0
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diff changeset
477
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diff changeset
478 /* If the destination rectangle is NULL, use the entire dest surface */
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diff changeset
479 if (dstrect == NULL) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
480 fulldst.x = fulldst.y = 0;
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diff changeset
481 dstrect = &fulldst;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
482 }
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diff changeset
483
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
484 /* clip the source rectangle to the source surface */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
485 if (srcrect) {
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diff changeset
486 int maxw, maxh;
0
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diff changeset
487
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diff changeset
488 srcx = srcrect->x;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
489 w = srcrect->w;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
490 if (srcx < 0) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
491 w += srcx;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
492 dstrect->x -= srcx;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
493 srcx = 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
494 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
495 maxw = src->w - srcx;
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diff changeset
496 if (maxw < w)
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diff changeset
497 w = maxw;
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diff changeset
498
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diff changeset
499 srcy = srcrect->y;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
500 h = srcrect->h;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
501 if (srcy < 0) {
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diff changeset
502 h += srcy;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
503 dstrect->y -= srcy;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
504 srcy = 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
505 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
506 maxh = src->h - srcy;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
507 if (maxh < h)
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diff changeset
508 h = maxh;
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diff changeset
509
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diff changeset
510 } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
511 srcx = srcy = 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
512 w = src->w;
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diff changeset
513 h = src->h;
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diff changeset
514 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
515
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
516 /* clip the destination rectangle against the clip rectangle */
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diff changeset
517 {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
518 SDL_Rect *clip = &dst->clip_rect;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
519 int dx, dy;
0
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diff changeset
520
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diff changeset
521 dx = clip->x - dstrect->x;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
522 if (dx > 0) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
523 w -= dx;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
524 dstrect->x += dx;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
525 srcx += dx;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
526 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
527 dx = dstrect->x + w - clip->x - clip->w;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
528 if (dx > 0)
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
529 w -= dx;
0
74212992fb08 Initial revision
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parents:
diff changeset
530
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
531 dy = clip->y - dstrect->y;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
532 if (dy > 0) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
533 h -= dy;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
534 dstrect->y += dy;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
535 srcy += dy;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
536 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
537 dy = dstrect->y + h - clip->y - clip->h;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
538 if (dy > 0)
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
539 h -= dy;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
540 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
541
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
542 if (w > 0 && h > 0) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
543 SDL_Rect sr;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
544 sr.x = srcx;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
545 sr.y = srcy;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
546 sr.w = dstrect->w = w;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
547 sr.h = dstrect->h = h;
1668
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parents: 1666
diff changeset
548 return SDL_LowerBlit(src, &sr, dst, dstrect);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
549 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
550 dstrect->w = dstrect->h = 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
551 return 0;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
552 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
553
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
554 static int
1668
4da1ee79c9af more tweaking indent options
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parents: 1666
diff changeset
555 SDL_FillRect1(SDL_Surface * dst, SDL_Rect * dstrect, Uint32 color)
532
058d47b7a3b4 Return an error with color fills on less than 8 bpp surfaces.
Sam Lantinga <slouken@libsdl.org>
parents: 526
diff changeset
556 {
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
557 /* FIXME: We have to worry about packing order.. *sigh* */
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
558 SDL_SetError("1-bpp rect fill not yet implemented");
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
559 return -1;
532
058d47b7a3b4 Return an error with color fills on less than 8 bpp surfaces.
Sam Lantinga <slouken@libsdl.org>
parents: 526
diff changeset
560 }
058d47b7a3b4 Return an error with color fills on less than 8 bpp surfaces.
Sam Lantinga <slouken@libsdl.org>
parents: 526
diff changeset
561
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
562 static int
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
563 SDL_FillRect4(SDL_Surface * dst, SDL_Rect * dstrect, Uint32 color)
532
058d47b7a3b4 Return an error with color fills on less than 8 bpp surfaces.
Sam Lantinga <slouken@libsdl.org>
parents: 526
diff changeset
564 {
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
565 /* FIXME: We have to worry about packing order.. *sigh* */
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
566 SDL_SetError("4-bpp rect fill not yet implemented");
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
567 return -1;
532
058d47b7a3b4 Return an error with color fills on less than 8 bpp surfaces.
Sam Lantinga <slouken@libsdl.org>
parents: 526
diff changeset
568 }
058d47b7a3b4 Return an error with color fills on less than 8 bpp surfaces.
Sam Lantinga <slouken@libsdl.org>
parents: 526
diff changeset
569
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
570 /*
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
571 * This function performs a fast fill of the given rectangle with 'color'
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
572 */
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
573 int
1668
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parents: 1666
diff changeset
574 SDL_FillRect(SDL_Surface * dst, SDL_Rect * dstrect, Uint32 color)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
575 {
1668
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parents: 1666
diff changeset
576 SDL_VideoDevice *_this = SDL_GetVideoDevice();
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
577 int x, y;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
578 Uint8 *row;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
579
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
580 /* This function doesn't work on surfaces < 8 bpp */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
581 if (dst->format->BitsPerPixel < 8) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
582 switch (dst->format->BitsPerPixel) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
583 case 1:
1668
4da1ee79c9af more tweaking indent options
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parents: 1666
diff changeset
584 return SDL_FillRect1(dst, dstrect, color);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
585 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
586 case 4:
1668
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parents: 1666
diff changeset
587 return SDL_FillRect4(dst, dstrect, color);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
588 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
589 default:
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
590 SDL_SetError("Fill rect on unsupported surface format");
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
591 return (-1);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
592 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
593 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
594 }
532
058d47b7a3b4 Return an error with color fills on less than 8 bpp surfaces.
Sam Lantinga <slouken@libsdl.org>
parents: 526
diff changeset
595
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
596 /* If 'dstrect' == NULL, then fill the whole surface */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
597 if (dstrect) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
598 /* Perform clipping */
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
599 if (!SDL_IntersectRect(dstrect, &dst->clip_rect, dstrect)) {
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
600 return (0);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
601 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
602 } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
603 dstrect = &dst->clip_rect;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
604 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
605
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
606 /* Check for hardware acceleration */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
607 if (((dst->flags & SDL_HWSURFACE) == SDL_HWSURFACE) &&
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
608 _this->info.blit_fill) {
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
609 return (_this->FillHWRect(_this, dst, dstrect, color));
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
610 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
611
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
612 /* Perform software fill */
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
613 if (SDL_LockSurface(dst) != 0) {
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
614 return (-1);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
615 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
616 row = (Uint8 *) dst->pixels + dstrect->y * dst->pitch +
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
617 dstrect->x * dst->format->BytesPerPixel;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
618 if (dst->format->palette || (color == 0)) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
619 x = dstrect->w * dst->format->BytesPerPixel;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
620 if (!color && !((uintptr_t) row & 3) && !(x & 3)
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
621 && !(dst->pitch & 3)) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
622 int n = x >> 2;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
623 for (y = dstrect->h; y; --y) {
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
624 SDL_memset4(row, 0, n);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
625 row += dst->pitch;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
626 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
627 } else {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
628 #ifdef __powerpc__
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
629 /*
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
630 * SDL_memset() on PPC (both glibc and codewarrior) uses
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
631 * the dcbz (Data Cache Block Zero) instruction, which
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
632 * causes an alignment exception if the destination is
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
633 * uncachable, so only use it on software surfaces
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
634 */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
635 if ((dst->flags & SDL_HWSURFACE) == SDL_HWSURFACE) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
636 if (dstrect->w >= 8) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
637 /*
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
638 * 64-bit stores are probably most
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
639 * efficient to uncached video memory
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
640 */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
641 double fill;
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
642 SDL_memset(&fill, color, (sizeof fill));
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
643 for (y = dstrect->h; y; y--) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
644 Uint8 *d = row;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
645 unsigned n = x;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
646 unsigned nn;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
647 Uint8 c = color;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
648 double f = fill;
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
649 while ((unsigned long) d & (sizeof(double) - 1)) {
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
650 *d++ = c;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
651 n--;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
652 }
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
653 nn = n / (sizeof(double) * 4);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
654 while (nn) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
655 ((double *) d)[0] = f;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
656 ((double *) d)[1] = f;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
657 ((double *) d)[2] = f;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
658 ((double *) d)[3] = f;
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
659 d += 4 * sizeof(double);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
660 nn--;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
661 }
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
662 n &= ~(sizeof(double) * 4 - 1);
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
663 nn = n / sizeof(double);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
664 while (nn) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
665 *(double *) d = f;
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
666 d += sizeof(double);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
667 nn--;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
668 }
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
669 n &= ~(sizeof(double) - 1);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
670 while (n) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
671 *d++ = c;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
672 n--;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
673 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
674 row += dst->pitch;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
675 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
676 } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
677 /* narrow boxes */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
678 for (y = dstrect->h; y; y--) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
679 Uint8 *d = row;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
680 Uint8 c = color;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
681 int n = x;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
682 while (n) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
683 *d++ = c;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
684 n--;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
685 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
686 row += dst->pitch;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
687 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
688 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
689 } else
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
690 #endif /* __powerpc__ */
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
691 {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
692 for (y = dstrect->h; y; y--) {
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
693 SDL_memset(row, color, x);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
694 row += dst->pitch;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
695 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
696 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
697 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
698 } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
699 switch (dst->format->BytesPerPixel) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
700 case 2:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
701 for (y = dstrect->h; y; --y) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
702 Uint16 *pixels = (Uint16 *) row;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
703 Uint16 c = (Uint16) color;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
704 Uint32 cc = (Uint32) c << 16 | c;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
705 int n = dstrect->w;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
706 if ((uintptr_t) pixels & 3) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
707 *pixels++ = c;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
708 n--;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
709 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
710 if (n >> 1)
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
711 SDL_memset4(pixels, cc, n >> 1);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
712 if (n & 1)
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
713 pixels[n - 1] = c;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
714 row += dst->pitch;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
715 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
716 break;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
717
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
718 case 3:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
719 #if SDL_BYTEORDER == SDL_BIG_ENDIAN
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
720 color <<= 8;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
721 #endif
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
722 for (y = dstrect->h; y; --y) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
723 Uint8 *pixels = row;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
724 for (x = dstrect->w; x; --x) {
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
725 SDL_memcpy(pixels, &color, 3);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
726 pixels += 3;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
727 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
728 row += dst->pitch;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
729 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
730 break;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
731
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
732 case 4:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
733 for (y = dstrect->h; y; --y) {
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
734 SDL_memset4(row, color, dstrect->w);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
735 row += dst->pitch;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
736 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
737 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
738 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
739 }
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
740 SDL_UnlockSurface(dst);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
741
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
742 /* We're done! */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
743 return (0);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
744 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
745
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
746 /*
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
747 * Lock a surface to directly access the pixels
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
748 */
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
749 int
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
750 SDL_LockSurface(SDL_Surface * surface)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
751 {
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
752 if (!surface->locked) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
753 /* Perform the lock */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
754 if (surface->flags & SDL_HWSURFACE) {
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
755 SDL_VideoDevice *_this = SDL_GetVideoDevice();
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
756 if (_this->LockHWSurface(_this, surface) < 0) {
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
757 return (-1);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
758 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
759 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
760 if (surface->flags & SDL_RLEACCEL) {
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
761 SDL_UnRLESurface(surface, 1);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
762 surface->flags |= SDL_RLEACCEL; /* save accel'd state */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
763 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
764 /* This needs to be done here in case pixels changes value */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
765 surface->pixels = (Uint8 *) surface->pixels + surface->offset;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
766 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
767
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
768 /* Increment the surface lock count, for recursive locks */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
769 ++surface->locked;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
770
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
771 /* Ready to go.. */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
772 return (0);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
773 }
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
774
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
775 /*
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
776 * Unlock a previously locked surface
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
777 */
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
778 void
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
779 SDL_UnlockSurface(SDL_Surface * surface)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
780 {
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
781 /* Only perform an unlock if we are locked */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
782 if (!surface->locked || (--surface->locked > 0)) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
783 return;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
784 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
785
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
786 /* Perform the unlock */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
787 surface->pixels = (Uint8 *) surface->pixels - surface->offset;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
788
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
789 /* Unlock hardware or accelerated surfaces */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
790 if (surface->flags & SDL_HWSURFACE) {
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
791 SDL_VideoDevice *_this = SDL_GetVideoDevice();
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
792 _this->UnlockHWSurface(_this, surface);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
793 } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
794 /* Update RLE encoded surface with new data */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
795 if ((surface->flags & SDL_RLEACCEL) == SDL_RLEACCEL) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
796 surface->flags &= ~SDL_RLEACCEL; /* stop lying */
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
797 SDL_RLESurface(surface);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
798 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
799 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
800 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
801
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
802 /*
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
803 * Convert a surface into the specified pixel format.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
804 */
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
805 SDL_Surface *
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
806 SDL_ConvertSurface(SDL_Surface * surface,
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
807 SDL_PixelFormat * format, Uint32 flags)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
808 {
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
809 SDL_Surface *convert;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
810 Uint32 colorkey = 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
811 Uint8 alpha = 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
812 Uint32 surface_flags;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
813 SDL_Rect bounds;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
814
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
815 /* Check for empty destination palette! (results in empty image) */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
816 if (format->palette != NULL) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
817 int i;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
818 for (i = 0; i < format->palette->ncolors; ++i) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
819 if ((format->palette->colors[i].r != 0) ||
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
820 (format->palette->colors[i].g != 0) ||
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
821 (format->palette->colors[i].b != 0))
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
822 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
823 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
824 if (i == format->palette->ncolors) {
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
825 SDL_SetError("Empty destination palette");
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
826 return (NULL);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
827 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
828 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
829
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
830 /* Only create hw surfaces with alpha channel if hw alpha blits
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
831 are supported */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
832 if (format->Amask != 0 && (flags & SDL_HWSURFACE)) {
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
833 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
834 if (!vi || !vi->blit_hw_A)
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
835 flags &= ~SDL_HWSURFACE;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
836 }
264
c9cd3b564e4b *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
837
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
838 /* Create a new surface with the desired format */
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
839 convert = SDL_CreateRGBSurface(flags,
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
840 surface->w, surface->h,
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
841 format->BitsPerPixel, format->Rmask,
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
842 format->Gmask, format->Bmask,
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
843 format->Amask);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
844 if (convert == NULL) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
845 return (NULL);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
846 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
847
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
848 /* Copy the palette if any */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
849 if (format->palette && convert->format->palette) {
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
850 SDL_memcpy(convert->format->palette->colors,
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
851 format->palette->colors,
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
852 format->palette->ncolors * sizeof(SDL_Color));
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
853 convert->format->palette->ncolors = format->palette->ncolors;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
854 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
855
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
856 /* Save the original surface color key and alpha */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
857 surface_flags = surface->flags;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
858 if ((surface_flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
859 /* Convert colourkeyed surfaces to RGBA if requested */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
860 if ((flags & SDL_SRCCOLORKEY) != SDL_SRCCOLORKEY && format->Amask) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
861 surface_flags &= ~SDL_SRCCOLORKEY;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
862 } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
863 colorkey = surface->format->colorkey;
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
864 SDL_SetColorKey(surface, 0, 0);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
865 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
866 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
867 if ((surface_flags & SDL_SRCALPHA) == SDL_SRCALPHA) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
868 /* Copy over the alpha channel to RGBA if requested */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
869 if (format->Amask) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
870 surface->flags &= ~SDL_SRCALPHA;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
871 } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
872 alpha = surface->format->alpha;
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
873 SDL_SetAlpha(surface, 0, 0);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
874 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
875 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
876
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
877 /* Copy over the image data */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
878 bounds.x = 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
879 bounds.y = 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
880 bounds.w = surface->w;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
881 bounds.h = surface->h;
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
882 SDL_LowerBlit(surface, &bounds, convert, &bounds);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
883
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
884 /* Clean up the original surface, and update converted surface */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
885 if (convert != NULL) {
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1666
diff changeset
886 SDL_SetClipRect(convert, &surface->clip_rect);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
887 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
888 if ((surface_flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
889 Uint32 cflags = surface_flags & (SDL_SRCCOLORKEY | SDL_RLEACCELOK);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
890 if (convert != NULL) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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891 Uint8 keyR, keyG, keyB;
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892
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893 SDL_GetRGB(colorkey, surface->format, &keyR, &keyG, &keyB);
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894 SDL_SetColorKey(convert, cflags | (flags & SDL_RLEACCELOK),
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895 SDL_MapRGB(convert->format, keyR, keyG, keyB));
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896 }
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897 SDL_SetColorKey(surface, cflags, colorkey);
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898 }
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899 if ((surface_flags & SDL_SRCALPHA) == SDL_SRCALPHA) {
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900 Uint32 aflags = surface_flags & (SDL_SRCALPHA | SDL_RLEACCELOK);
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901 if (convert != NULL) {
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902 SDL_SetAlpha(convert, aflags | (flags & SDL_RLEACCELOK), alpha);
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903 }
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904 if (format->Amask) {
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905 surface->flags |= SDL_SRCALPHA;
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906 } else {
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907 SDL_SetAlpha(surface, aflags, alpha);
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908 }
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909 }
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910
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911 /* We're ready to go! */
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912 return (convert);
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diff changeset
913 }
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914
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915 /*
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916 * Free a surface created by the above function.
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917 */
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918 void
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919 SDL_FreeSurface(SDL_Surface * surface)
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920 {
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921 if (surface == NULL) {
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922 return;
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923 }
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924 if (--surface->refcount > 0) {
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925 return;
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926 }
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927 while (surface->locked > 0) {
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928 SDL_UnlockSurface(surface);
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929 }
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930 if ((surface->flags & SDL_RLEACCEL) == SDL_RLEACCEL) {
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931 SDL_UnRLESurface(surface, 0);
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932 }
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933 if (surface->format) {
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934 SDL_FreeFormat(surface->format);
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935 surface->format = NULL;
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936 }
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937 if (surface->map != NULL) {
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938 SDL_FreeBlitMap(surface->map);
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939 surface->map = NULL;
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940 }
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941 if (surface->hwdata) {
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942 SDL_VideoDevice *_this = SDL_GetVideoDevice();
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943 _this->FreeHWSurface(_this, surface);
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944 }
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945 if (surface->pixels && ((surface->flags & SDL_PREALLOC) != SDL_PREALLOC)) {
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946 SDL_free(surface->pixels);
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947 }
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948 SDL_free(surface);
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diff changeset
949 #ifdef CHECK_LEAKS
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950 --surfaces_allocated;
0
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diff changeset
951 #endif
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diff changeset
952 }
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diff changeset
953
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diff changeset
954 /* vi: set ts=4 sw=4 expandtab: */