Mercurial > sdl-ios-xcode
annotate src/video/directfb/SDL_DirectFB_yuv.c @ 4050:ef815c44c662 SDL-1.2
Warn Visual C++ users if they have a stale configure generated SDL_config.h
author | Sam Lantinga <slouken@libsdl.org> |
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date | Thu, 12 Jul 2007 02:51:58 +0000 |
parents | a8a548394a81 |
children | a1b03ba2fcd0 |
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 /* This is the DirectFB implementation of YUV video overlays */ |
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25 |
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26 #include "SDL_video.h" |
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27 #include "SDL_DirectFB_yuv.h" |
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28 #include "../SDL_yuvfuncs.h" |
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29 |
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30 |
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31 /* The functions used to manipulate software video overlays */ |
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32 static struct private_yuvhwfuncs directfb_yuvfuncs = { |
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33 DirectFB_LockYUVOverlay, |
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34 DirectFB_UnlockYUVOverlay, |
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35 DirectFB_DisplayYUVOverlay, |
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36 DirectFB_FreeYUVOverlay |
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37 }; |
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38 |
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39 struct private_yuvhwdata { |
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40 DFBDisplayLayerID layer_id; |
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41 |
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42 IDirectFBDisplayLayer *layer; |
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43 IDirectFBSurface *surface; |
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44 |
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45 /* These are just so we don't have to allocate them separately */ |
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46 Uint16 pitches[3]; |
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47 Uint8 *planes[3]; |
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48 }; |
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49 |
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50 static DFBEnumerationResult |
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51 enum_layers_callback( DFBDisplayLayerID id, |
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52 DFBDisplayLayerDescription desc, |
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53 void *data ) |
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54 { |
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55 struct private_yuvhwdata *hwdata = (struct private_yuvhwdata *) data; |
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56 |
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57 /* we don't want the primary */ |
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58 if (id == DLID_PRIMARY) |
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59 return DFENUM_OK; |
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60 |
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61 /* take the one with a surface for video */ |
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62 if ((desc.caps & DLCAPS_SURFACE) && (desc.type & DLTF_VIDEO)) |
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63 { |
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64 hwdata->layer_id = id; |
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65 |
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66 return DFENUM_CANCEL; |
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67 } |
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68 |
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69 return DFENUM_OK; |
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70 } |
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71 |
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72 |
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73 static DFBResult CreateYUVSurface(_THIS, struct private_yuvhwdata *hwdata, |
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74 int width, int height, Uint32 format) |
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75 { |
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76 DFBResult ret; |
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77 IDirectFB *dfb = HIDDEN->dfb; |
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78 IDirectFBDisplayLayer *layer; |
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79 DFBDisplayLayerConfig conf; |
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80 |
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81 ret = dfb->EnumDisplayLayers (dfb, enum_layers_callback, hwdata); |
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82 if (ret) |
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83 { |
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84 SetDirectFBerror("IDirectFB::EnumDisplayLayers", ret); |
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85 return ret; |
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86 } |
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87 |
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88 if (!hwdata->layer_id) |
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89 return DFB_UNSUPPORTED; |
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90 |
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91 ret = dfb->GetDisplayLayer (dfb, hwdata->layer_id, &layer); |
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92 if (ret) |
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93 { |
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94 SetDirectFBerror("IDirectFB::GetDisplayLayer", ret); |
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95 return ret; |
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96 } |
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97 |
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98 conf.flags = DLCONF_WIDTH | DLCONF_HEIGHT | DLCONF_PIXELFORMAT; |
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99 conf.width = width; |
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100 conf.height = height; |
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101 |
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102 switch (format) |
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103 { |
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104 case SDL_YV12_OVERLAY: |
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105 conf.pixelformat = DSPF_YV12; |
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106 break; |
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107 case SDL_IYUV_OVERLAY: |
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108 conf.pixelformat = DSPF_I420; |
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109 break; |
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110 case SDL_YUY2_OVERLAY: |
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111 conf.pixelformat = DSPF_YUY2; |
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112 break; |
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113 case SDL_UYVY_OVERLAY: |
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114 conf.pixelformat = DSPF_UYVY; |
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115 break; |
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116 default: |
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117 fprintf (stderr, "SDL_DirectFB: Unsupported YUV format (0x%08x)!\n", format); |
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118 break; |
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|
119 } |
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120 |
3920
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Need to set DLSCL_ADMINISTRATIVE coop level in directfb driver, or YUV overlay
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|
121 /* Need to set coop level or newer DirectFB versions will fail here. */ |
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Need to set DLSCL_ADMINISTRATIVE coop level in directfb driver, or YUV overlay
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|
122 ret = layer->SetCooperativeLevel (layer, DLSCL_ADMINISTRATIVE); |
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Need to set DLSCL_ADMINISTRATIVE coop level in directfb driver, or YUV overlay
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|
123 if (ret) |
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|
124 { |
4018
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Fixed typo... did somebody not compile this before submitting a patch?
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125 SetDirectFBerror("IDirectFBDisplayLayer::SetCooperativeLevel() failed", ret); |
3920
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|
126 layer->Release (layer); |
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|
127 return ret; |
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|
128 } |
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129 |
478
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130 ret = layer->SetConfiguration (layer, &conf); |
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131 if (ret) |
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132 { |
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133 SetDirectFBerror("IDirectFBDisplayLayer::SetConfiguration", ret); |
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134 layer->Release (layer); |
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135 return ret; |
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|
136 } |
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|
137 |
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138 ret = layer->GetSurface (layer, &hwdata->surface); |
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139 if (ret) |
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140 { |
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141 SetDirectFBerror("IDirectFBDisplayLayer::GetSurface", ret); |
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142 layer->Release (layer); |
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143 return ret; |
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|
144 } |
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145 |
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146 hwdata->layer = layer; |
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147 |
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148 return DFB_OK; |
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149 } |
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150 |
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151 SDL_Overlay *DirectFB_CreateYUVOverlay(_THIS, int width, int height, Uint32 format, SDL_Surface *display) |
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152 { |
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153 SDL_Overlay *overlay; |
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154 struct private_yuvhwdata *hwdata; |
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155 |
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156 /* Create the overlay structure */ |
1338
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Removed uses of stdlib.h and string.h
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157 overlay = SDL_calloc (1, sizeof(SDL_Overlay)); |
478
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158 if (!overlay) |
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159 { |
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160 SDL_OutOfMemory(); |
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161 return NULL; |
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|
162 } |
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163 |
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164 /* Fill in the basic members */ |
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165 overlay->format = format; |
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166 overlay->w = width; |
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167 overlay->h = height; |
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168 |
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169 /* Set up the YUV surface function structure */ |
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170 overlay->hwfuncs = &directfb_yuvfuncs; |
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171 |
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172 /* Create the pixel data and lookup tables */ |
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173 hwdata = SDL_calloc(1, sizeof(struct private_yuvhwdata)); |
478
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174 overlay->hwdata = hwdata; |
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175 if (!hwdata) |
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176 { |
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177 SDL_OutOfMemory(); |
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178 SDL_FreeYUVOverlay (overlay); |
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179 return NULL; |
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180 } |
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181 |
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182 if (CreateYUVSurface (this, hwdata, width, height, format)) |
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183 { |
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184 SDL_FreeYUVOverlay (overlay); |
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185 return NULL; |
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|
186 } |
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187 |
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188 overlay->hw_overlay = 1; |
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189 |
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190 /* Set up the plane pointers */ |
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191 overlay->pitches = hwdata->pitches; |
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192 overlay->pixels = hwdata->planes; |
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|
193 switch (format) |
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194 { |
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195 case SDL_YV12_OVERLAY: |
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196 case SDL_IYUV_OVERLAY: |
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197 overlay->planes = 3; |
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|
198 break; |
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|
199 default: |
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|
200 overlay->planes = 1; |
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201 break; |
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|
202 } |
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|
203 |
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204 /* We're all done.. */ |
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205 return overlay; |
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|
206 } |
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207 |
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|
208 int DirectFB_LockYUVOverlay(_THIS, SDL_Overlay *overlay) |
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209 { |
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|
210 DFBResult ret; |
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211 void *data; |
1782 | 212 int pitch; |
478
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213 IDirectFBSurface *surface = overlay->hwdata->surface; |
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214 |
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215 ret = surface->Lock (surface, DSLF_READ | DSLF_WRITE, &data, &pitch); |
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216 if (ret) |
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|
217 { |
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218 SetDirectFBerror("IDirectFBSurface::Lock", ret); |
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219 return -1; |
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|
220 } |
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221 |
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222 /* Find the pitch and offset values for the overlay */ |
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223 overlay->pitches[0] = (Uint16) pitch; |
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224 overlay->pixels[0] = (Uint8*) data; |
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225 |
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226 switch (overlay->format) |
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227 { |
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228 case SDL_YV12_OVERLAY: |
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229 case SDL_IYUV_OVERLAY: |
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230 /* Add the two extra planes */ |
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231 overlay->pitches[1] = overlay->pitches[0] / 2; |
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232 overlay->pitches[2] = overlay->pitches[0] / 2; |
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233 overlay->pixels[1] = overlay->pixels[0] + overlay->pitches[0] * overlay->h; |
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234 overlay->pixels[2] = overlay->pixels[1] + overlay->pitches[1] * overlay->h / 2; |
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235 break; |
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|
236 default: |
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237 /* Only one plane, no worries */ |
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|
238 break; |
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239 } |
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240 |
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241 return 0; |
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242 } |
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243 |
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244 void DirectFB_UnlockYUVOverlay(_THIS, SDL_Overlay *overlay) |
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245 { |
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246 IDirectFBSurface *surface = overlay->hwdata->surface; |
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247 |
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248 overlay->pixels[0] = overlay->pixels[1] = overlay->pixels[2] = NULL; |
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249 |
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250 surface->Unlock (surface); |
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251 } |
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252 |
1643
51038e80ae59
More general fix for bug #189
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253 int DirectFB_DisplayYUVOverlay(_THIS, SDL_Overlay *overlay, SDL_Rect *src, SDL_Rect *dst) |
478
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254 { |
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255 DFBResult ret; |
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256 DFBDisplayLayerConfig conf; |
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257 IDirectFBDisplayLayer *primary = HIDDEN->layer; |
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258 IDirectFBDisplayLayer *layer = overlay->hwdata->layer; |
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259 |
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260 primary->GetConfiguration (primary, &conf); |
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261 |
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262 ret = layer->SetScreenLocation (layer, |
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263 dst->x / (float) conf.width, dst->y / (float) conf.height, |
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264 dst->w / (float) conf.width, dst->h / (float) conf.height ); |
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265 if (ret) |
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266 { |
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267 SetDirectFBerror("IDirectFBDisplayLayer::SetScreenLocation", ret); |
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268 return -1; |
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269 } |
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270 |
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271 return 0; |
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272 } |
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273 |
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274 void DirectFB_FreeYUVOverlay(_THIS, SDL_Overlay *overlay) |
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275 { |
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276 struct private_yuvhwdata *hwdata; |
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277 |
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278 hwdata = overlay->hwdata; |
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279 if (hwdata) |
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280 { |
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281 if (hwdata->surface) |
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282 hwdata->surface->Release (hwdata->surface); |
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283 |
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284 if (hwdata->layer) |
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285 hwdata->layer->Release (hwdata->layer); |
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286 |
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287 free (hwdata); |
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288 } |
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289 } |
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290 |