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annotate src/video/SDL_renderer_sw.c @ 1684:c4aa1a2f48f1 SDL-1.3

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Software YUV texture support in progress...
author Sam Lantinga <slouken@libsdl.org>
date Sun, 18 Jun 2006 06:35:41 +0000
parents 396a35389351
children 1577404809f0
rev   line source
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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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18
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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_yuv_sw_c.h"
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27
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28
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29 /* SDL surface based renderer implementation */
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30
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31 static SDL_Renderer *SDL_SW_CreateRenderer(SDL_Window * window, Uint32 flags);
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32 static int SDL_SW_CreateTexture(SDL_Renderer * renderer,
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33 SDL_Texture * texture);
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34 static int SDL_SW_QueryTexturePixels(SDL_Renderer * renderer,
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35 SDL_Texture * texture, void **pixels,
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36 int *pitch);
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37 static int SDL_SW_SetTexturePalette(SDL_Renderer * renderer,
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38 SDL_Texture * texture,
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39 const SDL_Color * colors, int firstcolor,
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40 int ncolors);
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41 static int SDL_SW_GetTexturePalette(SDL_Renderer * renderer,
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42 SDL_Texture * texture, SDL_Color * colors,
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43 int firstcolor, int ncolors);
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44 static int SDL_SW_UpdateTexture(SDL_Renderer * renderer,
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45 SDL_Texture * texture, const SDL_Rect * rect,
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46 const void *pixels, int pitch);
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47 static int SDL_SW_LockTexture(SDL_Renderer * renderer, SDL_Texture * texture,
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48 const SDL_Rect * rect, int markDirty,
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49 void **pixels, int *pitch);
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50 static void SDL_SW_UnlockTexture(SDL_Renderer * renderer,
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51 SDL_Texture * texture);
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52 static void SDL_SW_DirtyTexture(SDL_Renderer * renderer,
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53 SDL_Texture * texture, int numrects,
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54 const SDL_Rect * rects);
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55 static void SDL_SW_SelectRenderTexture(SDL_Renderer * renderer,
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56 SDL_Texture * texture);
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57 static void SDL_SW_RenderFill(SDL_Renderer * renderer, const SDL_Rect * rect,
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58 Uint32 color);
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59 static int SDL_SW_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture,
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60 const SDL_Rect * srcrect,
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61 const SDL_Rect * dstrect, int blendMode,
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62 int scaleMode);
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63 static int SDL_SW_RenderReadPixels(SDL_Renderer * renderer,
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64 const SDL_Rect * rect, void *pixels,
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65 int pitch);
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66 static int SDL_SW_RenderWritePixels(SDL_Renderer * renderer,
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67 const SDL_Rect * rect, const void *pixels,
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68 int pitch);
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69 static void SDL_SW_RenderPresent(SDL_Renderer * renderer);
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70 static void SDL_SW_DestroyTexture(SDL_Renderer * renderer,
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71 SDL_Texture * texture);
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72 static void SDL_SW_DestroyRenderer(SDL_Renderer * renderer);
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73
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74
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75 SDL_RenderDriver SDL_SW_RenderDriver = {
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76 SDL_SW_CreateRenderer,
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77 {
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78 "software",
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79 (SDL_Renderer_PresentDiscard |
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80 SDL_Renderer_PresentCopy |
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81 SDL_Renderer_PresentFlip2 |
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82 SDL_Renderer_PresentFlip3 | SDL_Renderer_RenderTarget),
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83 (SDL_TextureBlendMode_None |
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84 SDL_TextureBlendMode_Mask | SDL_TextureBlendMode_Blend),
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85 (SDL_TextureScaleMode_None | SDL_TextureScaleMode_Fast),
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86 11,
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87 {
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88 SDL_PixelFormat_Index8,
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89 SDL_PixelFormat_RGB555,
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90 SDL_PixelFormat_RGB565,
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91 SDL_PixelFormat_RGB888,
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92 SDL_PixelFormat_BGR888,
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93 SDL_PixelFormat_ARGB8888,
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94 SDL_PixelFormat_RGBA8888,
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95 SDL_PixelFormat_ABGR8888,
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96 SDL_PixelFormat_BGRA8888,
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97 SDL_PixelFormat_YUY2,
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98 SDL_PixelFormat_UYVY},
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99 32768,
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100 32768}
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101 };
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102
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103 typedef struct
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104 {
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105 int current_screen;
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106 SDL_Surface *screens[3];
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107 SDL_Surface *target;
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108 SDL_Renderer *renderer;
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109 } SDL_SW_RenderData;
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110
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111 SDL_Renderer *
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112 SDL_SW_CreateRenderer(SDL_Window * window, Uint32 flags)
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113 {
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114 SDL_DisplayMode *displayMode = &window->display->current_mode;
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115 SDL_Renderer *renderer;
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116 SDL_SW_RenderData *data;
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117 int i, n;
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118 int bpp;
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119 Uint32 Rmask, Gmask, Bmask, Amask;
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120
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121 if (!SDL_PixelFormatEnumToMasks
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122 (displayMode->format, &bpp, &Rmask, &Gmask, &Bmask, &Amask)) {
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123 SDL_SetError("Unknown display format");
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124 return NULL;
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125 }
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126
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127 renderer = (SDL_Renderer *) SDL_malloc(sizeof(*renderer));
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128 if (!renderer) {
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129 SDL_OutOfMemory();
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130 return NULL;
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131 }
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132 SDL_zerop(renderer);
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133
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134 data = (SDL_SW_RenderData *) SDL_malloc(sizeof(*data));
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135 if (!data) {
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136 SDL_SW_DestroyRenderer(renderer);
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137 SDL_OutOfMemory();
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138 return NULL;
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139 }
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140 SDL_zerop(data);
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141
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142 renderer->CreateTexture = SDL_SW_CreateTexture;
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143 renderer->QueryTexturePixels = SDL_SW_QueryTexturePixels;
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144 renderer->SetTexturePalette = SDL_SW_SetTexturePalette;
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145 renderer->GetTexturePalette = SDL_SW_GetTexturePalette;
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146 renderer->UpdateTexture = SDL_SW_UpdateTexture;
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147 renderer->LockTexture = SDL_SW_LockTexture;
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diff changeset
148 renderer->UnlockTexture = SDL_SW_UnlockTexture;
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diff changeset
149 renderer->DirtyTexture = SDL_SW_DirtyTexture;
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diff changeset
150 renderer->SelectRenderTexture = SDL_SW_SelectRenderTexture;
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diff changeset
151 renderer->RenderFill = SDL_SW_RenderFill;
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diff changeset
152 renderer->RenderCopy = SDL_SW_RenderCopy;
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diff changeset
153 renderer->RenderReadPixels = SDL_SW_RenderReadPixels;
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diff changeset
154 renderer->RenderWritePixels = SDL_SW_RenderWritePixels;
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diff changeset
155 renderer->RenderPresent = SDL_SW_RenderPresent;
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diff changeset
156 renderer->DestroyTexture = SDL_SW_DestroyTexture;
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diff changeset
157 renderer->DestroyRenderer = SDL_SW_DestroyRenderer;
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diff changeset
158 renderer->info = SDL_SW_RenderDriver.info;
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diff changeset
159 renderer->window = window;
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diff changeset
160 renderer->driverdata = data;
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parents:
diff changeset
161
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162 renderer->info.flags = SDL_Renderer_RenderTarget;
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diff changeset
163
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164 if (flags & SDL_Renderer_PresentFlip2) {
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165 renderer->info.flags |= SDL_Renderer_PresentFlip2;
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166 n = 2;
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diff changeset
167 } else if (flags & SDL_Renderer_PresentFlip3) {
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168 renderer->info.flags |= SDL_Renderer_PresentFlip3;
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169 n = 3;
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diff changeset
170 } else {
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diff changeset
171 renderer->info.flags |= SDL_Renderer_PresentCopy;
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172 n = 1;
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parents:
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173 }
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parents:
diff changeset
174 for (i = 0; i < n; ++i) {
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diff changeset
175 data->screens[i] =
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176 SDL_CreateRGBSurface(0, window->w, window->h, bpp, Rmask, Gmask,
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177 Bmask, Amask);
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178 if (!data->screens[i]) {
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179 SDL_SW_DestroyRenderer(renderer);
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180 return NULL;
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181 }
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182 SDL_SetSurfacePalette(data->screens[i], window->display->palette);
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183 }
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184 data->current_screen = 0;
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185 data->target = data->screens[0];
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parents:
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186
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187 /* Find a render driver that we can use to display data */
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188 for (i = 0; i < window->display->num_render_drivers; ++i) {
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189 SDL_RenderDriver *driver = &window->display->render_drivers[i];
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diff changeset
190 if (driver->info.name != SDL_SW_RenderDriver.info.name) {
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diff changeset
191 data->renderer =
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192 driver->CreateRenderer(window, SDL_Renderer_PresentDiscard);
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diff changeset
193 if (data->renderer) {
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diff changeset
194 break;
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parents:
diff changeset
195 }
e136f3ffdc1b Adding software renderer implementation
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parents:
diff changeset
196 }
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diff changeset
197 }
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diff changeset
198 if (i == window->display->num_render_drivers) {
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199 SDL_SW_DestroyRenderer(renderer);
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diff changeset
200 SDL_SetError("Couldn't find display render driver");
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diff changeset
201 return NULL;
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parents:
diff changeset
202 }
e136f3ffdc1b Adding software renderer implementation
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parents:
diff changeset
203 return renderer;
e136f3ffdc1b Adding software renderer implementation
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diff changeset
204 }
e136f3ffdc1b Adding software renderer implementation
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parents:
diff changeset
205
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206 static int
1676
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diff changeset
207 SDL_SW_CreateTexture(SDL_Renderer * renderer, SDL_Texture * texture)
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diff changeset
208 {
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diff changeset
209 if (SDL_ISPIXELFORMAT_FOURCC(texture->format)) {
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diff changeset
210 if (texture->access == SDL_TextureAccess_Render) {
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diff changeset
211 SDL_SetError("Rendering to YUV format textures is not supported");
c4aa1a2f48f1 Software YUV texture support in progress...
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diff changeset
212 return -1;
c4aa1a2f48f1 Software YUV texture support in progress...
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diff changeset
213 }
c4aa1a2f48f1 Software YUV texture support in progress...
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diff changeset
214 texture->driverdata = SDL_SW_CreateYUVTexture(texture);
c4aa1a2f48f1 Software YUV texture support in progress...
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diff changeset
215 } else {
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
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diff changeset
216 int bpp;
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diff changeset
217 Uint32 Rmask, Gmask, Bmask, Amask;
1676
e136f3ffdc1b Adding software renderer implementation
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parents:
diff changeset
218
1684
c4aa1a2f48f1 Software YUV texture support in progress...
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diff changeset
219 if (!SDL_PixelFormatEnumToMasks
c4aa1a2f48f1 Software YUV texture support in progress...
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parents: 1683
diff changeset
220 (texture->format, &bpp, &Rmask, &Gmask, &Bmask, &Amask)) {
c4aa1a2f48f1 Software YUV texture support in progress...
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diff changeset
221 SDL_SetError("Unknown texture format");
c4aa1a2f48f1 Software YUV texture support in progress...
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diff changeset
222 return -1;
c4aa1a2f48f1 Software YUV texture support in progress...
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diff changeset
223 }
c4aa1a2f48f1 Software YUV texture support in progress...
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diff changeset
224
c4aa1a2f48f1 Software YUV texture support in progress...
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diff changeset
225 texture->driverdata =
c4aa1a2f48f1 Software YUV texture support in progress...
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diff changeset
226 SDL_CreateRGBSurface(0, texture->w, texture->h, bpp, Rmask, Gmask,
c4aa1a2f48f1 Software YUV texture support in progress...
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diff changeset
227 Bmask, Amask);
1676
e136f3ffdc1b Adding software renderer implementation
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parents:
diff changeset
228 }
e136f3ffdc1b Adding software renderer implementation
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parents:
diff changeset
229
1684
c4aa1a2f48f1 Software YUV texture support in progress...
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diff changeset
230 if (!texture->driverdata) {
1676
e136f3ffdc1b Adding software renderer implementation
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parents:
diff changeset
231 return -1;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
232 }
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
233 return 0;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
234 }
e136f3ffdc1b Adding software renderer implementation
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parents:
diff changeset
235
1680
9488fca10677 Dummy video driver works again in high color video modes. Yay!
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parents: 1678
diff changeset
236 static int
1678
90bf530ced8e SDL_SetVideoMode() compiles now...
Sam Lantinga <slouken@libsdl.org>
parents: 1676
diff changeset
237 SDL_SW_QueryTexturePixels(SDL_Renderer * renderer, SDL_Texture * texture,
90bf530ced8e SDL_SetVideoMode() compiles now...
Sam Lantinga <slouken@libsdl.org>
parents: 1676
diff changeset
238 void **pixels, int *pitch)
90bf530ced8e SDL_SetVideoMode() compiles now...
Sam Lantinga <slouken@libsdl.org>
parents: 1676
diff changeset
239 {
1684
c4aa1a2f48f1 Software YUV texture support in progress...
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diff changeset
240 if (SDL_ISPIXELFORMAT_FOURCC(texture->format)) {
c4aa1a2f48f1 Software YUV texture support in progress...
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parents: 1683
diff changeset
241 return SDL_SW_QueryYUVTexturePixels((SDL_SW_YUVTexture *) texture->
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
242 driverdata, pixels, pitch);
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
243 } else {
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
244 SDL_Surface *surface = (SDL_Surface *) texture->driverdata;
1678
90bf530ced8e SDL_SetVideoMode() compiles now...
Sam Lantinga <slouken@libsdl.org>
parents: 1676
diff changeset
245
1684
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
246 *pixels = surface->pixels;
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
247 *pitch = surface->pitch;
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
248 return 0;
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
249 }
1678
90bf530ced8e SDL_SetVideoMode() compiles now...
Sam Lantinga <slouken@libsdl.org>
parents: 1676
diff changeset
250 }
90bf530ced8e SDL_SetVideoMode() compiles now...
Sam Lantinga <slouken@libsdl.org>
parents: 1676
diff changeset
251
1680
9488fca10677 Dummy video driver works again in high color video modes. Yay!
Sam Lantinga <slouken@libsdl.org>
parents: 1678
diff changeset
252 static int
9488fca10677 Dummy video driver works again in high color video modes. Yay!
Sam Lantinga <slouken@libsdl.org>
parents: 1678
diff changeset
253 SDL_SW_SetTexturePalette(SDL_Renderer * renderer, SDL_Texture * texture,
1681
80a5e6a4e1e2 Working on paletted display and texture support (two different issues)
Sam Lantinga <slouken@libsdl.org>
parents: 1680
diff changeset
254 const SDL_Color * colors, int firstcolor,
80a5e6a4e1e2 Working on paletted display and texture support (two different issues)
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parents: 1680
diff changeset
255 int ncolors)
1680
9488fca10677 Dummy video driver works again in high color video modes. Yay!
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parents: 1678
diff changeset
256 {
1684
c4aa1a2f48f1 Software YUV texture support in progress...
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parents: 1683
diff changeset
257 if (SDL_ISPIXELFORMAT_FOURCC(texture->format)) {
c4aa1a2f48f1 Software YUV texture support in progress...
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parents: 1683
diff changeset
258 SDL_SetError("YUV textures don't have a palette");
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
259 return -1;
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
260 } else {
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
261 SDL_Surface *surface = (SDL_Surface *) texture->driverdata;
1680
9488fca10677 Dummy video driver works again in high color video modes. Yay!
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parents: 1678
diff changeset
262
1684
c4aa1a2f48f1 Software YUV texture support in progress...
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parents: 1683
diff changeset
263 return SDL_SetPaletteColors(surface->format->palette, colors,
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
264 firstcolor, ncolors);
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
265 }
1680
9488fca10677 Dummy video driver works again in high color video modes. Yay!
Sam Lantinga <slouken@libsdl.org>
parents: 1678
diff changeset
266 }
9488fca10677 Dummy video driver works again in high color video modes. Yay!
Sam Lantinga <slouken@libsdl.org>
parents: 1678
diff changeset
267
9488fca10677 Dummy video driver works again in high color video modes. Yay!
Sam Lantinga <slouken@libsdl.org>
parents: 1678
diff changeset
268 static int
1681
80a5e6a4e1e2 Working on paletted display and texture support (two different issues)
Sam Lantinga <slouken@libsdl.org>
parents: 1680
diff changeset
269 SDL_SW_GetTexturePalette(SDL_Renderer * renderer, SDL_Texture * texture,
80a5e6a4e1e2 Working on paletted display and texture support (two different issues)
Sam Lantinga <slouken@libsdl.org>
parents: 1680
diff changeset
270 SDL_Color * colors, int firstcolor, int ncolors)
80a5e6a4e1e2 Working on paletted display and texture support (two different issues)
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parents: 1680
diff changeset
271 {
1684
c4aa1a2f48f1 Software YUV texture support in progress...
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parents: 1683
diff changeset
272 if (SDL_ISPIXELFORMAT_FOURCC(texture->format)) {
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
273 SDL_SetError("YUV textures don't have a palette");
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
274 return -1;
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
275 } else {
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
276 SDL_Surface *surface = (SDL_Surface *) texture->driverdata;
1681
80a5e6a4e1e2 Working on paletted display and texture support (two different issues)
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parents: 1680
diff changeset
277
1684
c4aa1a2f48f1 Software YUV texture support in progress...
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parents: 1683
diff changeset
278 SDL_memcpy(colors, &surface->format->palette->colors[firstcolor],
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
279 ncolors * sizeof(*colors));
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
280 return 0;
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
281 }
1681
80a5e6a4e1e2 Working on paletted display and texture support (two different issues)
Sam Lantinga <slouken@libsdl.org>
parents: 1680
diff changeset
282 }
80a5e6a4e1e2 Working on paletted display and texture support (two different issues)
Sam Lantinga <slouken@libsdl.org>
parents: 1680
diff changeset
283
80a5e6a4e1e2 Working on paletted display and texture support (two different issues)
Sam Lantinga <slouken@libsdl.org>
parents: 1680
diff changeset
284 static int
1676
e136f3ffdc1b Adding software renderer implementation
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parents:
diff changeset
285 SDL_SW_UpdateTexture(SDL_Renderer * renderer, SDL_Texture * texture,
1681
80a5e6a4e1e2 Working on paletted display and texture support (two different issues)
Sam Lantinga <slouken@libsdl.org>
parents: 1680
diff changeset
286 const SDL_Rect * rect, const void *pixels, int pitch)
1676
e136f3ffdc1b Adding software renderer implementation
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parents:
diff changeset
287 {
1684
c4aa1a2f48f1 Software YUV texture support in progress...
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parents: 1683
diff changeset
288 if (SDL_ISPIXELFORMAT_FOURCC(texture->format)) {
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
289 return SDL_SW_UpdateYUVTexture((SDL_SW_YUVTexture *) texture->
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
290 driverdata, rect, pixels, pitch);
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
291 } else {
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292 SDL_Surface *surface = (SDL_Surface *) texture->driverdata;
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diff changeset
293 Uint8 *src, *dst;
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diff changeset
294 int row;
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diff changeset
295 size_t length;
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296
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297 src = (Uint8 *) pixels;
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298 dst =
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299 (Uint8 *) surface->pixels + rect->y * surface->pitch +
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300 rect->x * surface->format->BytesPerPixel;
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301 length = rect->w * surface->format->BytesPerPixel;
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diff changeset
302 for (row = 0; row < rect->h; ++row) {
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diff changeset
303 SDL_memcpy(dst, src, length);
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diff changeset
304 src += pitch;
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diff changeset
305 dst += surface->pitch;
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306 }
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diff changeset
307 return 0;
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308 }
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309 }
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310
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diff changeset
311 static int
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312 SDL_SW_LockTexture(SDL_Renderer * renderer, SDL_Texture * texture,
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313 const SDL_Rect * rect, int markDirty, void **pixels,
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314 int *pitch)
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315 {
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316 if (SDL_ISPIXELFORMAT_FOURCC(texture->format)) {
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diff changeset
317 return SDL_SW_LockYUVTexture((SDL_SW_YUVTexture *) texture->
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318 driverdata, rect, markDirty, pixels,
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diff changeset
319 pitch);
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320 } else {
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diff changeset
321 SDL_Surface *surface = (SDL_Surface *) texture->driverdata;
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322
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323 *pixels =
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diff changeset
324 (void *) ((Uint8 *) surface->pixels + rect->y * surface->pitch +
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diff changeset
325 rect->x * surface->format->BytesPerPixel);
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diff changeset
326 *pitch = surface->pitch;
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diff changeset
327 return 0;
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diff changeset
328 }
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329 }
e136f3ffdc1b Adding software renderer implementation
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330
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diff changeset
331 static void
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332 SDL_SW_UnlockTexture(SDL_Renderer * renderer, SDL_Texture * texture)
e136f3ffdc1b Adding software renderer implementation
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diff changeset
333 {
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diff changeset
334 if (SDL_ISPIXELFORMAT_FOURCC(texture->format)) {
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335 SDL_SW_UnlockYUVTexture((SDL_SW_YUVTexture *) texture->driverdata);
c4aa1a2f48f1 Software YUV texture support in progress...
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diff changeset
336 }
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337 }
e136f3ffdc1b Adding software renderer implementation
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diff changeset
338
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diff changeset
339 static void
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diff changeset
340 SDL_SW_DirtyTexture(SDL_Renderer * renderer, SDL_Texture * texture,
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diff changeset
341 int numrects, const SDL_Rect * rects)
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342 {
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343 }
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344
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diff changeset
345 static void
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346 SDL_SW_SelectRenderTexture(SDL_Renderer * renderer, SDL_Texture * texture)
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diff changeset
347 {
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348 SDL_SW_RenderData *data = (SDL_SW_RenderData *) renderer->driverdata;
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396a35389351 Finished palettized display handling.
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349
396a35389351 Finished palettized display handling.
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350 if (texture) {
396a35389351 Finished palettized display handling.
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diff changeset
351 data->target = (SDL_Surface *) texture->driverdata;
396a35389351 Finished palettized display handling.
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diff changeset
352 } else {
396a35389351 Finished palettized display handling.
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diff changeset
353 data->target = data->screens[data->current_screen];
396a35389351 Finished palettized display handling.
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diff changeset
354 }
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e136f3ffdc1b Adding software renderer implementation
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diff changeset
355 }
e136f3ffdc1b Adding software renderer implementation
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parents:
diff changeset
356
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diff changeset
357 static void
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diff changeset
358 SDL_SW_RenderFill(SDL_Renderer * renderer, const SDL_Rect * rect,
80a5e6a4e1e2 Working on paletted display and texture support (two different issues)
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diff changeset
359 Uint32 color)
1676
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parents:
diff changeset
360 {
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parents:
diff changeset
361 SDL_SW_RenderData *data = (SDL_SW_RenderData *) renderer->driverdata;
1681
80a5e6a4e1e2 Working on paletted display and texture support (two different issues)
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diff changeset
362 SDL_Rect real_rect = *rect;
1676
e136f3ffdc1b Adding software renderer implementation
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parents:
diff changeset
363 Uint8 r, g, b, a;
e136f3ffdc1b Adding software renderer implementation
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parents:
diff changeset
364
e136f3ffdc1b Adding software renderer implementation
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parents:
diff changeset
365 a = (Uint8) ((color >> 24) & 0xFF);
e136f3ffdc1b Adding software renderer implementation
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parents:
diff changeset
366 r = (Uint8) ((color >> 16) & 0xFF);
e136f3ffdc1b Adding software renderer implementation
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parents:
diff changeset
367 g = (Uint8) ((color >> 8) & 0xFF);
e136f3ffdc1b Adding software renderer implementation
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parents:
diff changeset
368 b = (Uint8) (color & 0xFF);
e136f3ffdc1b Adding software renderer implementation
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parents:
diff changeset
369 color = SDL_MapRGBA(data->target->format, r, g, b, a);
e136f3ffdc1b Adding software renderer implementation
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parents:
diff changeset
370
1681
80a5e6a4e1e2 Working on paletted display and texture support (two different issues)
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diff changeset
371 SDL_FillRect(data->target, &real_rect, color);
1676
e136f3ffdc1b Adding software renderer implementation
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parents:
diff changeset
372 }
e136f3ffdc1b Adding software renderer implementation
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parents:
diff changeset
373
1680
9488fca10677 Dummy video driver works again in high color video modes. Yay!
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diff changeset
374 static int
1676
e136f3ffdc1b Adding software renderer implementation
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parents:
diff changeset
375 SDL_SW_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture,
1681
80a5e6a4e1e2 Working on paletted display and texture support (two different issues)
Sam Lantinga <slouken@libsdl.org>
parents: 1680
diff changeset
376 const SDL_Rect * srcrect, const SDL_Rect * dstrect,
80a5e6a4e1e2 Working on paletted display and texture support (two different issues)
Sam Lantinga <slouken@libsdl.org>
parents: 1680
diff changeset
377 int blendMode, int scaleMode)
1676
e136f3ffdc1b Adding software renderer implementation
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parents:
diff changeset
378 {
e136f3ffdc1b Adding software renderer implementation
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parents:
diff changeset
379 SDL_SW_RenderData *data = (SDL_SW_RenderData *) renderer->driverdata;
e136f3ffdc1b Adding software renderer implementation
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parents:
diff changeset
380
1684
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diff changeset
381 if (SDL_ISPIXELFORMAT_FOURCC(texture->format)) {
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
382 SDL_Surface *target = data->target;
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
383 void *pixels =
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
384 (Uint8 *) target->pixels + dstrect->y * target->pitch +
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
385 dstrect->x * target->format->BytesPerPixel;
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
386 return SDL_SW_CopyYUVToRGB((SDL_SW_YUVTexture *) texture->driverdata,
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
387 srcrect,
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
388 renderer->window->display->current_mode.
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
389 format, dstrect->w, dstrect->h, pixels,
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
390 target->pitch);
1676
e136f3ffdc1b Adding software renderer implementation
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parents:
diff changeset
391 } else {
1684
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
392 SDL_Surface *surface = (SDL_Surface *) texture->driverdata;
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
393 SDL_Rect real_srcrect = *srcrect;
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
394 SDL_Rect real_dstrect = *dstrect;
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
395
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
396 if (blendMode &
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
397 (SDL_TextureBlendMode_Mask | SDL_TextureBlendMode_Blend)) {
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
398 SDL_SetAlpha(surface, SDL_SRCALPHA, 0);
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
399 } else {
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
400 SDL_SetAlpha(surface, 0, 0);
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
401 }
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
402 if (scaleMode != SDL_TextureScaleMode_None &&
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
403 (srcrect->w != dstrect->w || srcrect->h != dstrect->h)) {
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
404 return SDL_SoftStretch(surface, &real_srcrect, data->target,
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
405 &real_dstrect);
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
406 } else {
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
407 return SDL_LowerBlit(surface, &real_srcrect, data->target,
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
408 &real_dstrect);
c4aa1a2f48f1 Software YUV texture support in progress...
Sam Lantinga <slouken@libsdl.org>
parents: 1683
diff changeset
409 }
1676
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
410 }
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
411 }
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
412
1680
9488fca10677 Dummy video driver works again in high color video modes. Yay!
Sam Lantinga <slouken@libsdl.org>
parents: 1678
diff changeset
413 static int
1681
80a5e6a4e1e2 Working on paletted display and texture support (two different issues)
Sam Lantinga <slouken@libsdl.org>
parents: 1680
diff changeset
414 SDL_SW_RenderReadPixels(SDL_Renderer * renderer, const SDL_Rect * rect,
1676
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
415 void *pixels, int pitch)
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
416 {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
417 SDL_SW_RenderData *data = (SDL_SW_RenderData *) renderer->driverdata;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
418 SDL_Surface *surface = data->target;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
419 Uint8 *src, *dst;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
420 int row;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
421 size_t length;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
422
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
423 src =
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
424 (Uint8 *) surface->pixels + rect->y * surface->pitch +
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
425 rect->x * surface->format->BytesPerPixel;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
426 dst = (Uint8 *) pixels;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
427 length = rect->w * surface->format->BytesPerPixel;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
428 for (row = 0; row < rect->h; ++row) {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
429 SDL_memcpy(dst, src, length);
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
430 src += surface->pitch;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
431 dst += pitch;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
432 }
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
433 return 0;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
434 }
e136f3ffdc1b Adding software renderer implementation
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435
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436 static int
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437 SDL_SW_RenderWritePixels(SDL_Renderer * renderer, const SDL_Rect * rect,
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438 const void *pixels, int pitch)
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439 {
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440 SDL_SW_RenderData *data = (SDL_SW_RenderData *) renderer->driverdata;
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441 SDL_Surface *surface = data->target;
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442 Uint8 *src, *dst;
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443 int row;
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444 size_t length;
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445
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446 src = (Uint8 *) pixels;
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447 dst =
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448 (Uint8 *) surface->pixels + rect->y * surface->pitch +
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449 rect->x * surface->format->BytesPerPixel;
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450 length = rect->w * surface->format->BytesPerPixel;
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451 for (row = 0; row < rect->h; ++row) {
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452 SDL_memcpy(dst, src, length);
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453 src += pitch;
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454 dst += surface->pitch;
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455 }
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456 return 0;
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457 }
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458
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459 static void
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460 SDL_SW_RenderPresent(SDL_Renderer * renderer)
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461 {
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462 SDL_SW_RenderData *data = (SDL_SW_RenderData *) renderer->driverdata;
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463 SDL_Surface *surface = data->screens[data->current_screen];
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464 SDL_Rect rect;
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465 int new_screen;
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466
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467 /* Send the data to the display */
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468 /* FIXME: implement dirty rect updates */
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469 rect.x = 0;
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470 rect.y = 0;
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471 rect.w = surface->w;
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472 rect.h = surface->h;
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473 data->renderer->RenderWritePixels(data->renderer, &rect, surface->pixels,
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474 surface->pitch);
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475 data->renderer->RenderPresent(data->renderer);
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476
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477 /* Update the flipping chain, if any */
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478 if (renderer->info.flags & SDL_Renderer_PresentFlip2) {
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479 new_screen = (data->current_screen + 1) % 2;
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480 } else if (renderer->info.flags & SDL_Renderer_PresentFlip3) {
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481 new_screen = (data->current_screen + 1) % 3;
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482 } else {
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483 new_screen = 0;
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484 }
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485 if (data->target == data->screens[data->current_screen]) {
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486 data->target = data->screens[new_screen];
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487 }
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488 data->current_screen = new_screen;
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489 }
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490
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491 static void
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492 SDL_SW_DestroyTexture(SDL_Renderer * renderer, SDL_Texture * texture)
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493 {
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494 if (SDL_ISPIXELFORMAT_FOURCC(texture->format)) {
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495 SDL_SW_DestroyYUVTexture((SDL_SW_YUVTexture *) texture->driverdata);
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496 } else {
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497 SDL_Surface *surface = (SDL_Surface *) texture->driverdata;
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498
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499 SDL_FreeSurface(surface);
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500 }
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501 }
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502
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503 static void
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504 SDL_SW_DestroyRenderer(SDL_Renderer * renderer)
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505 {
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506 SDL_SW_RenderData *data = (SDL_SW_RenderData *) renderer->driverdata;
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507 int i;
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508
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509 if (data) {
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510 for (i = 0; i < SDL_arraysize(data->screens); ++i) {
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511 if (data->screens[i]) {
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512 SDL_FreeSurface(data->screens[i]);
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513 }
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514 }
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515 SDL_free(data);
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516 }
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517 SDL_free(renderer);
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518 }
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519
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520 /* vi: set ts=4 sw=4 expandtab: */