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4165
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1 /*
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2 * SDL - Simple DirectMedia Layer
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3 * CELL BE Support for PS3 Framebuffer
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4 * Copyright (C) 2008, 2009 International Business Machines Corporation
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5 *
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6 * This library is free software; you can redistribute it and/or modify it
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7 * under the terms of the GNU Lesser General Public License as published
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8 * by the Free Software Foundation; either version 2.1 of the License, or
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9 * (at your option) any later version.
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10 *
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11 * This library is distributed in the hope that it will be useful, but
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12 * WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 * Lesser General Public License for more details.
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15 *
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16 * You should have received a copy of the GNU Lesser General Public
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17 * License along with this library; if not, write to the Free Software
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18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
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19 * USA
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20 *
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21 * Martin Lowinski <lowinski [at] de [dot] ibm [ibm] com>
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22 * Dirk Herrendoerfer <d.herrendoerfer [at] de [dot] ibm [dot] com>
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23 * SPE code based on research by:
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24 * Rene Becker
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25 * Thimo Emmerich
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26 */
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27
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28 #include "SDL_config.h"
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29
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30 #include "SDL_video.h"
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31 #include "SDL_ps3video.h"
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32 #include "SDL_ps3yuv_c.h"
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33 #include "../SDL_yuvfuncs.h"
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34 #include "spulibs/spu_common.h"
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35
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36 /* Stores the executable name */
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37 extern spe_program_handle_t yuv2rgb_spu;
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38 extern spe_program_handle_t bilin_scaler_spu;
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39
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40 int SPE_Start(_THIS, spu_data_t * spe_data);
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41 int SPE_Stop(_THIS, spu_data_t * spe_data);
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42 int SPE_Boot(_THIS, spu_data_t * spe_data);
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43 int SPE_Shutdown(_THIS, spu_data_t * spe_data);
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44 int SPE_SendMsg(_THIS, spu_data_t * spe_data, unsigned int msg);
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45 int SPE_WaitForMsg(_THIS, spu_data_t * spe_data, unsigned int msg);
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46 void SPE_RunContext(void *thread_argp);
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47
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48
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49 /* The functions used to manipulate software video overlays */
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50 static struct private_yuvhwfuncs ps3_yuvfuncs = {
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51 PS3_LockYUVOverlay,
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52 PS3_UnlockYUVOverlay,
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53 PS3_DisplayYUVOverlay,
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54 PS3_FreeYUVOverlay
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55 };
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56
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57
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58 struct private_yuvhwdata {
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59 SDL_Surface *display;
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60 SDL_Surface *stretch;
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61 volatile void * pixels __attribute__((aligned(128)));
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62
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63 /* These are just so we don't have to allocate them separately */
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64 Uint16 pitches[3];
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65 Uint8 * planes[3];
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66
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67 unsigned int scale;
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68
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69 /* Scaled YUV picture */
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70 Uint8 * scaler_out __attribute__((aligned(128)));
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71
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72 /* YUV2RGB converter data */
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73 volatile struct yuv2rgb_parms_t * converter_parms __attribute__((aligned(128)));
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74
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75 /* Scaler data */
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76 volatile struct scale_parms_t * scaler_parms __attribute__((aligned(128)));
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77
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78 Uint8 locked;
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79 };
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80
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81
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82 SDL_Overlay *PS3_CreateYUVOverlay(_THIS, int width, int height, Uint32 format, SDL_Surface *display) {
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83 /* Only RGB packed pixel conversion supported */
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84 if ((display->format->BytesPerPixel != 2) &&
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85 (display->format->BytesPerPixel != 3) &&
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86 (display->format->BytesPerPixel != 4))
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87 {
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88 SDL_SetError ("Can't use YUV data on non 16/24/32 bit surfaces");
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89 return NULL;
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90 }
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91
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92 /* Double-check the requested format. We'll only support YV12 */
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93 switch (format) {
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94 case SDL_IYUV_OVERLAY:
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95 case SDL_YV12_OVERLAY:
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96 /* Supported YUV format */
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97 break;
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98 default:
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99 SDL_SetError("Unsupported YUV format");
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100 return NULL;
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101 }
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102
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103 SDL_Overlay* overlay;
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104 struct private_yuvhwdata* hwdata;
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105
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106 /* Create the overlay structure */
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107 overlay = (SDL_Overlay *) SDL_calloc(1, sizeof(SDL_Overlay));
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108 if (overlay == NULL) {
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109 SDL_OutOfMemory();
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110 return NULL;
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111 }
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112 SDL_memset(overlay, 0, (sizeof *overlay));
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113
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114 /* Set the basic attributes */
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115 overlay->format = format;
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116 overlay->w = width;
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117 overlay->h = height;
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118 overlay->hwdata = NULL;
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119
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120 /* Set up the PS3 YUV surface function structure */
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121 overlay->hwfuncs = &ps3_yuvfuncs;
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122
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123 /* Create the pixel data and lookup tables */
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124 hwdata = (struct private_yuvhwdata *) SDL_calloc(1, sizeof(struct private_yuvhwdata));
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125 if (hwdata == NULL) {
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126 SDL_OutOfMemory();
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127 SDL_FreeYUVOverlay(overlay);
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128 return NULL;
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129 }
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130 overlay->hwdata = hwdata;
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131
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132 hwdata->stretch = NULL;
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133 hwdata->display = display;
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134
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135 /* Create SPU parms structure */
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136 hwdata->converter_parms = (struct yuv2rgb_parms_t *) memalign(16, sizeof(struct yuv2rgb_parms_t));
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137 hwdata->scaler_parms = (struct scale_parms_t *) memalign(16, sizeof(struct scale_parms_t));
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138 if (hwdata->converter_parms == NULL || hwdata->scaler_parms == NULL) {
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139 SDL_FreeYUVOverlay(overlay);
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140 SDL_OutOfMemory();
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141 return(NULL);
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142 }
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143
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144 /* Set up the SPEs */
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145 scaler_thread_data = (spu_data_t *) malloc(sizeof(spu_data_t));
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146 converter_thread_data = (spu_data_t *) malloc(sizeof(spu_data_t));
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147 if (converter_thread_data == NULL || scaler_thread_data == NULL) {
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148 SDL_FreeYUVOverlay(overlay);
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149 SDL_OutOfMemory();
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150 return(NULL);
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151 }
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152
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153 scaler_thread_data->program = bilin_scaler_spu;
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154 scaler_thread_data->program_name = "bilin_scaler_spu";
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155 scaler_thread_data->keepalive = 0;
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156 scaler_thread_data->booted = 0;
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157
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158 converter_thread_data->program = yuv2rgb_spu;
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159 converter_thread_data->program_name = "yuv2rgb_spu";
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160 converter_thread_data->keepalive = 1;
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161 converter_thread_data->booted = 0;
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162
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163 SPE_Start(this, converter_thread_data);
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164
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165 hwdata->pixels = (Uint8 *) memalign(16, width * height + ((width * height) >> 1));
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166 if (hwdata->pixels == NULL) {
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167 SDL_FreeYUVOverlay(overlay);
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168 SDL_OutOfMemory();
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169 return(NULL);
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170 }
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171
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172 /* Find the pitch and offset values for the overlay */
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173 overlay->pitches = hwdata->pitches;
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174 overlay->pixels = hwdata->planes;
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175 switch (format) {
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176 case SDL_YV12_OVERLAY:
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177 case SDL_IYUV_OVERLAY:
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178 overlay->pitches[0] = overlay->w;
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179 overlay->pitches[1] = overlay->pitches[0] / 2;
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180 overlay->pitches[2] = overlay->pitches[0] / 2;
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181 overlay->pixels[0] = (Uint8 *)hwdata->pixels;
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182 overlay->pixels[1] = overlay->pixels[0] +
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183 overlay->pitches[0] * overlay->h;
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184 overlay->pixels[2] = overlay->pixels[1] +
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185 overlay->pitches[1] * overlay->h / 2;
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186 overlay->planes = 3;
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187 break;
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188 default:
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189 /* We should never get here (caught above) */
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190 break;
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191 }
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192
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193 /* We're all done.. */
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194 return overlay;
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195 }
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196
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197
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198 int PS3_LockYUVOverlay(_THIS, SDL_Overlay *overlay) {
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199 if (overlay == NULL) {
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200 return -1;
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201 }
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202 overlay->hwdata->locked = 1;
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203
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204 return 0;
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205 }
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206
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207
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208 void PS3_UnlockYUVOverlay(_THIS, SDL_Overlay *overlay) {
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209 if (overlay == NULL) {
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210 return;
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211 }
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212 overlay->hwdata->locked = 0;
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213
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214 return;
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215 }
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216
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217
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218 int PS3_DisplayYUVOverlay(_THIS, SDL_Overlay *overlay, SDL_Rect *src, SDL_Rect *dst) {
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219 if ((overlay == NULL) || (overlay->hwdata == NULL)) {
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220 return -1;
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221 }
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222
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223 Uint8 *lum, *Cr, *Cb;
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224 struct private_yuvhwdata *hwdata;
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225 SDL_Surface *display;
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226
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227 hwdata = overlay->hwdata;
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228 display = hwdata->display;
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229
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230 /* Do we have to scale? */
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231 if ((src->w != dst->w) || (src->h != dst->h) ) {
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232 hwdata->scale = 1;
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233 deprintf(1, "[PS3] We need to scale\n");
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234 } else {
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235 hwdata->scale = 0;
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236 deprintf(1, "[PS3] No scaling\n");
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237 }
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238
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239 /* Find out where the various portions of the image are */
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240 switch (overlay->format) {
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241 case SDL_YV12_OVERLAY:
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242 lum = (Uint8 *)overlay->pixels[0];
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243 Cr = (Uint8 *)overlay->pixels[1];
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244 Cb = (Uint8 *)overlay->pixels[2];
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245 break;
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246 case SDL_IYUV_OVERLAY:
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247 lum = (Uint8 *)overlay->pixels[0];
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248 Cr = (Uint8 *)overlay->pixels[2];
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249 Cb = (Uint8 *)overlay->pixels[1];
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250 break;
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251 default:
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252 SDL_SetError("Unsupported YUV format in blit");
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253 return -1;
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254 }
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255
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256 if (hwdata->scale) {
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257 /* Alloc mem for scaled YUV picture */
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258 hwdata->scaler_out = (Uint8 *) memalign(16, dst->w * dst->h + ((dst->w * dst->h) >> 1));
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259 if (hwdata->scaler_out == NULL) {
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260 SDL_FreeYUVOverlay(overlay);
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261 SDL_OutOfMemory();
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262 return -1;
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263 }
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264
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265 /* Set parms for scaling */
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266 hwdata->scaler_parms->src_pixel_width = src->w;
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267 hwdata->scaler_parms->src_pixel_height = src->h;
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268 hwdata->scaler_parms->dst_pixel_width = dst->w;
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269 hwdata->scaler_parms->dst_pixel_height = dst->h;
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270 hwdata->scaler_parms->y_plane = lum;
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271 hwdata->scaler_parms->v_plane = Cr;
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272 hwdata->scaler_parms->u_plane = Cb;
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273 hwdata->scaler_parms->dstBuffer = hwdata->scaler_out;
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274 scaler_thread_data->argp = (void *)hwdata->scaler_parms;
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275
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276 /* Scale the YUV overlay to given size */
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277 SPE_Start(this, scaler_thread_data);
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278 SPE_Stop(this, scaler_thread_data);
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279
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280 /* Set parms for converting after scaling */
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281 hwdata->converter_parms->y_plane = hwdata->scaler_out;
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282 hwdata->converter_parms->v_plane = hwdata->scaler_out + dst->w * dst->h;
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283 hwdata->converter_parms->u_plane = hwdata->scaler_out + dst->w * dst->h + ((dst->w * dst->h) >> 2);
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284 } else {
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285 /* Set parms for converting */
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286 hwdata->converter_parms->y_plane = lum;
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287 hwdata->converter_parms->v_plane = Cr;
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288 hwdata->converter_parms->u_plane = Cb;
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289 }
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290
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291 hwdata->converter_parms->src_pixel_width = dst->w;
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292 hwdata->converter_parms->src_pixel_height = dst->h;
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293 hwdata->converter_parms->dstBuffer = (Uint8 *) s_pixels;
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294 converter_thread_data->argp = (void *)hwdata->converter_parms;
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295
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296 /* Convert YUV overlay to RGB */
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297 SPE_SendMsg(this, converter_thread_data, SPU_START);
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298 SPE_SendMsg(this, converter_thread_data, (unsigned int)converter_thread_data->argp);
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299
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300 /* Centering */
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301 s_bounded_input_width = dst->w;
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302 s_bounded_input_height = dst->h;
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303
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304 /* UpdateRects() will do the rest.. */
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305 SDL_UpdateRects(display, 1, dst);
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306
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307 if (hwdata->scale)
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308 SDL_free((void *)hwdata->scaler_out);
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309
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310 return 0;
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311 }
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312
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313
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314 void PS3_FreeYUVOverlay(_THIS, SDL_Overlay *overlay) {
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315 if (overlay == NULL) {
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316 return;
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317 }
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318
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319 if (overlay->hwdata == NULL) {
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320 return;
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321 }
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322
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323 struct private_yuvhwdata * hwdata;
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324 hwdata = overlay->hwdata;
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325
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326 if (scaler_thread_data)
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327 SDL_free(scaler_thread_data);
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328 if (converter_thread_data) {
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329 SPE_Shutdown(this, converter_thread_data);
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330 SDL_free(converter_thread_data);
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331 }
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332
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333 if (hwdata) {
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334 if (hwdata->pixels)
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335 SDL_free((void *)hwdata->pixels);
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336 SDL_free(hwdata);
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337 }
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338 return;
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339 }
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340
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