annotate src/video/ps3/spulibs/yuv2rgb.c @ 4801:506a9165491b

Added #define's for error codes returned from SDL shaped-window API.
author Eli Gottlieb <eligottlieb@gmail.com>
date Sun, 18 Jul 2010 22:24:52 -0400
parents 94fb40a4a9a7
children
rev   line source
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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 "spu_common.h"
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29
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30 #include <spu_intrinsics.h>
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31 #include <spu_mfcio.h>
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32
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33 // Debugging
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34 //#define DEBUG
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35
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36 // Test environment for /2 resolutions
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37 //#define TESTING
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38
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39 #ifdef DEBUG
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40 #define deprintf(fmt, args... ) \
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41 fprintf( stdout, fmt, ##args ); \
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42 fflush( stdout );
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43 #else
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44 #define deprintf( fmt, args... )
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45 #endif
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46
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47 struct yuv2rgb_parms_t parms_converter __attribute__((aligned(128)));
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48
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49 /* A maximum of 8 lines Y, therefore 4 lines V, 4 lines U are stored
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50 * there might be the need to retrieve misaligned data, adjust
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51 * incoming v and u plane to be able to handle this (add 128)
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52 */
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53 unsigned char y_plane[2][(MAX_HDTV_WIDTH + 128) * 4] __attribute__((aligned(128)));
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54 unsigned char v_plane[2][(MAX_HDTV_WIDTH + 128) * 2] __attribute__((aligned(128)));
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55 unsigned char u_plane[2][(MAX_HDTV_WIDTH + 128) * 2] __attribute__((aligned(128)));
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56
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57 /* A maximum of 4 lines BGRA are stored, 4 byte per pixel */
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58 unsigned char bgra[4 * MAX_HDTV_WIDTH * 4] __attribute__((aligned(128)));
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59
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60 /* some vectors needed by the float to int conversion */
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61 static const vector float vec_255 = { 255.0f, 255.0f, 255.0f, 255.0f };
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62 static const vector float vec_0_1 = { 0.1f, 0.1f, 0.1f, 0.1f };
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63
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64 void yuv_to_rgb_w16();
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65 void yuv_to_rgb_w32();
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66
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67 void yuv_to_rgb_w2_line(unsigned char* y_addr, unsigned char* v_addr, unsigned char* u_addr, unsigned char* bgra_addr, unsigned int width);
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68 void yuv_to_rgb_w32_line(unsigned char* y_addr, unsigned char* v_addr, unsigned char* u_addr, unsigned char* bgra_addr_, unsigned int width);
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69
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70
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71 int main(unsigned long long spe_id __attribute__((unused)), unsigned long long argp __attribute__ ((unused)))
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72 {
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73 deprintf("[SPU] yuv2rgb_spu is up... (on SPE #%llu)\n", spe_id);
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74 uint32_t ea_mfc, mbox;
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75 // send ready message
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76 spu_write_out_mbox(SPU_READY);
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77
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78 while (1) {
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79 /* Check mailbox */
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80 mbox = spu_read_in_mbox();
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81 deprintf("[SPU] Message is %u\n", mbox);
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82 switch (mbox) {
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83 case SPU_EXIT:
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84 deprintf("[SPU] yuv2rgb_converter goes down...\n");
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85 return 0;
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86 case SPU_START:
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87 break;
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88 default:
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89 deprintf("[SPU] Cannot handle message\n");
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90 continue;
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91 }
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92
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93 /* Tag Manager setup */
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94 unsigned int tag_id;
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95 tag_id = mfc_multi_tag_reserve(1);
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96 if (tag_id == MFC_TAG_INVALID) {
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97 deprintf("[SPU] Failed to reserve mfc tags on yuv2rgb_converter\n");
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98 return 0;
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99 }
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100
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101 /* DMA transfer for the input parameters */
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102 ea_mfc = spu_read_in_mbox();
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103 deprintf("[SPU] Message on yuv2rgb_converter is %u\n", ea_mfc);
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104 spu_mfcdma32(&parms_converter, (unsigned int)ea_mfc, sizeof(struct yuv2rgb_parms_t), tag_id, MFC_GET_CMD);
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105 DMA_WAIT_TAG(tag_id);
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106
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107 /* There are alignment issues that involve handling of special cases
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108 * a width of 32 results in a width of 16 in the chrominance
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109 * --> choose the proper handling to optimize the performance
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110 */
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111 deprintf("[SPU] Convert %ix%i from YUV to RGB\n", parms_converter.src_pixel_width, parms_converter.src_pixel_height);
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112 if (!(parms_converter.src_pixel_width & 0x1f)) {
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113 deprintf("[SPU] Using yuv_to_rgb_w16\n");
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114 yuv_to_rgb_w16();
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115 } else {
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116 deprintf("[SPU] Using yuv_to_rgb_w32\n");
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117 yuv_to_rgb_w32();
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118 }
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119
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120 mfc_multi_tag_release(tag_id, 1);
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121 deprintf("[SPU] yuv2rgb_spu... done!\n");
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122 /* Send FIN message */
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123 spu_write_out_mbox(SPU_FIN);
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124 }
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125
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126 return 0;
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127 }
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128
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129
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130 /*
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131 * float_to_char()
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132 *
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133 * converts a float to a character using saturated
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134 * arithmetic
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135 *
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136 * @param s float for conversion
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137 * @returns converted character
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138 */
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139 inline static unsigned char float_to_char(float s) {
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140 vector float vec_s = spu_splats(s);
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141 vector unsigned int select_1 = spu_cmpgt(vec_0_1, vec_s);
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142 vec_s = spu_sel(vec_s, vec_0_1, select_1);
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143
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144 vector unsigned int select_2 = spu_cmpgt(vec_s, vec_255);
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145 vec_s = spu_sel(vec_s, vec_255, select_2);
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146 return (unsigned char) spu_extract(vec_s,0);
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147 }
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148
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149
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150 /*
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151 * vfloat_to_vuint()
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152 *
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153 * converts a float vector to an unsinged int vector using saturated
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154 * arithmetic
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155 *
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156 * @param vec_s float vector for conversion
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157 * @returns converted unsigned int vector
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158 */
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159 inline static vector unsigned int vfloat_to_vuint(vector float vec_s) {
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160 vector unsigned int select_1 = spu_cmpgt(vec_0_1, vec_s);
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161 vec_s = spu_sel(vec_s, vec_0_1, select_1);
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162
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163 vector unsigned int select_2 = spu_cmpgt(vec_s, vec_255);
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164 vec_s = spu_sel(vec_s, vec_255, select_2);
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165 return spu_convtu(vec_s,0);
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166 }
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167
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168
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169 void yuv_to_rgb_w16() {
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170 // Pixel dimensions of the picture
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171 uint32_t width, height;
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172
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173 // Extract parameters
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174 width = parms_converter.src_pixel_width;
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175 height = parms_converter.src_pixel_height;
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176
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177 // Plane data management
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178 // Y
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179 unsigned char* ram_addr_y = parms_converter.y_plane;
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180 // V
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181 unsigned char* ram_addr_v = parms_converter.v_plane;
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182 // U
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183 unsigned char* ram_addr_u = parms_converter.u_plane;
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184
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185 // BGRA
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186 unsigned char* ram_addr_bgra = parms_converter.dstBuffer;
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187
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188 // Strides
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189 unsigned int stride_y = width;
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190 unsigned int stride_vu = width>>1;
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191
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192 // Buffer management
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193 unsigned int buf_idx = 0;
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194 unsigned int size_4lines_y = stride_y<<2;
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195 unsigned int size_2lines_y = stride_y<<1;
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196 unsigned int size_2lines_vu = stride_vu<<1;
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197
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198 // 2*width*4byte_per_pixel
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199 unsigned int size_2lines_bgra = width<<3;
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200
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201
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202 // start double-buffered processing
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203 // 4 lines y
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204 spu_mfcdma32(y_plane[buf_idx], (unsigned int) ram_addr_y, size_4lines_y, RETR_BUF+buf_idx, MFC_GET_CMD);
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205
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206 // 2 lines v
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207 spu_mfcdma32(v_plane[buf_idx], (unsigned int) ram_addr_v, size_2lines_vu, RETR_BUF+buf_idx, MFC_GET_CMD);
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208
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209 // 2 lines u
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210 spu_mfcdma32(u_plane[buf_idx], (unsigned int) ram_addr_u, size_2lines_vu, RETR_BUF+buf_idx, MFC_GET_CMD);
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211
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212 // Wait for these transfers to be completed
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213 DMA_WAIT_TAG((RETR_BUF + buf_idx));
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214
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215 unsigned int i;
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216 for(i=0; i<(height>>2)-1; i++) {
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217
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218 buf_idx^=1;
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219
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220 // 4 lines y
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221 spu_mfcdma32(y_plane[buf_idx], (unsigned int) ram_addr_y+size_4lines_y, size_4lines_y, RETR_BUF+buf_idx, MFC_GET_CMD);
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222
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223 // 2 lines v
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224 spu_mfcdma32(v_plane[buf_idx], (unsigned int) ram_addr_v+size_2lines_vu, size_2lines_vu, RETR_BUF+buf_idx, MFC_GET_CMD);
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225
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226 // 2 lines u
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227 spu_mfcdma32(u_plane[buf_idx], (unsigned int) ram_addr_u+size_2lines_vu, size_2lines_vu, RETR_BUF+buf_idx, MFC_GET_CMD);
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228
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229 DMA_WAIT_TAG((RETR_BUF + buf_idx));
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230
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231 buf_idx^=1;
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232
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233
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234 // Convert YUV to BGRA, store it back (first two lines)
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235 #ifndef TESTING
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236 yuv_to_rgb_w16_line(y_plane[buf_idx], v_plane[buf_idx], u_plane[buf_idx], bgra, width);
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237
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238 // Next two lines
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239 yuv_to_rgb_w16_line(y_plane[buf_idx] + size_2lines_y,
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240 v_plane[buf_idx] + stride_vu,
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241 u_plane[buf_idx] + stride_vu,
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242 bgra + size_2lines_bgra,
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243 width);
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244 #else
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245 yuv_to_rgb_w2_line(y_plane[buf_idx], v_plane[buf_idx], u_plane[buf_idx], bgra, width);
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246
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247 // Next two lines
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248 yuv_to_rgb_w2_line(y_plane[buf_idx] + size_2lines_y,
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249 v_plane[buf_idx] + stride_vu,
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250 u_plane[buf_idx] + stride_vu,
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251 bgra + size_2lines_bgra,
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252 width);
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253 #endif
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254
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255 // Wait for previous storing transfer to be completed
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256 DMA_WAIT_TAG(STR_BUF);
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257
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258 // Store converted lines in two steps->max transfer size 16384
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259 spu_mfcdma32(bgra, (unsigned int) ram_addr_bgra, size_2lines_bgra, STR_BUF, MFC_PUT_CMD);
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260 ram_addr_bgra += size_2lines_bgra;
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261 spu_mfcdma32(bgra+size_2lines_bgra, (unsigned int) ram_addr_bgra, size_2lines_bgra, STR_BUF, MFC_PUT_CMD);
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262 ram_addr_bgra += size_2lines_bgra;
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263
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264 // Move 4 lines
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265 ram_addr_y += size_4lines_y;
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266 ram_addr_v += size_2lines_vu;
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267 ram_addr_u += size_2lines_vu;
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268
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269 buf_idx^=1;
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270 }
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271
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272 #ifndef TESTING
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273 // Convert YUV to BGRA, store it back (first two lines)
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274 yuv_to_rgb_w16_line(y_plane[buf_idx], v_plane[buf_idx], u_plane[buf_idx], bgra, width);
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275
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276 // Next two lines
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277 yuv_to_rgb_w16_line(y_plane[buf_idx] + size_2lines_y,
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278 v_plane[buf_idx] + stride_vu,
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279 u_plane[buf_idx] + stride_vu,
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280 bgra + size_2lines_bgra,
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281 width);
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282 #else
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283 // Convert YUV to BGRA, store it back (first two lines)
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284 yuv_to_rgb_w2_line(y_plane[buf_idx], v_plane[buf_idx], u_plane[buf_idx], bgra, width);
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285
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286 // Next two lines
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287 yuv_to_rgb_w2_line(y_plane[buf_idx] + size_2lines_y,
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288 v_plane[buf_idx] + stride_vu,
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289 u_plane[buf_idx] + stride_vu,
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290 bgra + size_2lines_bgra,
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291 width);
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292 #endif
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293
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294 // Wait for previous storing transfer to be completed
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295 DMA_WAIT_TAG(STR_BUF);
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296 spu_mfcdma32(bgra, (unsigned int) ram_addr_bgra, size_2lines_bgra, STR_BUF, MFC_PUT_CMD);
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297 ram_addr_bgra += size_2lines_bgra;
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298 spu_mfcdma32(bgra+size_2lines_bgra, (unsigned int) ram_addr_bgra, size_2lines_bgra, STR_BUF, MFC_PUT_CMD);
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299
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300 // wait for previous storing transfer to be completed
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301 DMA_WAIT_TAG(STR_BUF);
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302
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303 }
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304
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305
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306 void yuv_to_rgb_w32() {
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307 // Pixel dimensions of the picture
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308 uint32_t width, height;
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309
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310 // Extract parameters
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311 width = parms_converter.src_pixel_width;
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312 height = parms_converter.src_pixel_height;
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313
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314 // Plane data management
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315 // Y
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316 unsigned char* ram_addr_y = parms_converter.y_plane;
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317 // V
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318 unsigned char* ram_addr_v = parms_converter.v_plane;
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319 // U
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320 unsigned char* ram_addr_u = parms_converter.u_plane;
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321
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322 // BGRA
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323 unsigned char* ram_addr_bgra = parms_converter.dstBuffer;
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324
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325 // Strides
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326 unsigned int stride_y = width;
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327 unsigned int stride_vu = width>>1;
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328
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329 // Buffer management
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330 unsigned int buf_idx = 0;
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331 unsigned int size_4lines_y = stride_y<<2;
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332 unsigned int size_2lines_y = stride_y<<1;
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333 unsigned int size_2lines_vu = stride_vu<<1;
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334
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335 // 2*width*4byte_per_pixel
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336 unsigned int size_2lines_bgra = width<<3;
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337
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338 // start double-buffered processing
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339 // 4 lines y
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340 spu_mfcdma32(y_plane[buf_idx], (unsigned int) ram_addr_y, size_4lines_y, RETR_BUF + buf_idx, MFC_GET_CMD);
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341 // 2 lines v
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342 spu_mfcdma32(v_plane[buf_idx], (unsigned int) ram_addr_v, size_2lines_vu, RETR_BUF + buf_idx, MFC_GET_CMD);
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343 // 2 lines u
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344 spu_mfcdma32(u_plane[buf_idx], (unsigned int) ram_addr_u, size_2lines_vu, RETR_BUF + buf_idx, MFC_GET_CMD);
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345
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346 // Wait for these transfers to be completed
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347 DMA_WAIT_TAG((RETR_BUF + buf_idx));
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348
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349 unsigned int i;
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350 for(i=0; i < (height>>2)-1; i++) {
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351 buf_idx^=1;
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352 // 4 lines y
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353 spu_mfcdma32(y_plane[buf_idx], (unsigned int) ram_addr_y+size_4lines_y, size_4lines_y, RETR_BUF + buf_idx, MFC_GET_CMD);
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354 deprintf("4lines = %d\n", size_4lines_y);
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355 // 2 lines v
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356 spu_mfcdma32(v_plane[buf_idx], (unsigned int) ram_addr_v+size_2lines_vu, size_2lines_vu, RETR_BUF + buf_idx, MFC_GET_CMD);
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357 deprintf("2lines = %d\n", size_2lines_vu);
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358 // 2 lines u
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359 spu_mfcdma32(u_plane[buf_idx], (unsigned int) ram_addr_u+size_2lines_vu, size_2lines_vu, RETR_BUF + buf_idx, MFC_GET_CMD);
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360 deprintf("2lines = %d\n", size_2lines_vu);
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361
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362 DMA_WAIT_TAG((RETR_BUF + buf_idx));
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363
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364 buf_idx^=1;
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365
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366 // Convert YUV to BGRA, store it back (first two lines)
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367 yuv_to_rgb_w32_line(y_plane[buf_idx], v_plane[buf_idx], u_plane[buf_idx], bgra, width);
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368
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369 // Next two lines
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370 yuv_to_rgb_w32_line(y_plane[buf_idx] + size_2lines_y,
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371 v_plane[buf_idx] + stride_vu,
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372 u_plane[buf_idx] + stride_vu,
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373 bgra + size_2lines_bgra,
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374 width);
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375
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376 // Wait for previous storing transfer to be completed
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377 DMA_WAIT_TAG(STR_BUF);
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378
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379 // Store converted lines in two steps->max transfer size 16384
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380 spu_mfcdma32(bgra, (unsigned int)ram_addr_bgra, size_2lines_bgra, STR_BUF, MFC_PUT_CMD);
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381 ram_addr_bgra += size_2lines_bgra;
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382 spu_mfcdma32(bgra + size_2lines_bgra, (unsigned int)ram_addr_bgra, size_2lines_bgra, STR_BUF, MFC_PUT_CMD);
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383 ram_addr_bgra += size_2lines_bgra;
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384
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385 // Move 4 lines
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386 ram_addr_y += size_4lines_y;
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387 ram_addr_v += size_2lines_vu;
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388 ram_addr_u += size_2lines_vu;
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389
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390 buf_idx^=1;
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391 }
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392
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393 // Convert YUV to BGRA, store it back (first two lines)
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394 yuv_to_rgb_w32_line(y_plane[buf_idx], v_plane[buf_idx], u_plane[buf_idx], bgra, width);
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395
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396 // Next two lines
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397 yuv_to_rgb_w32_line(y_plane[buf_idx] + size_2lines_y,
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398 v_plane[buf_idx] + stride_vu,
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399 u_plane[buf_idx] + stride_vu,
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400 bgra + size_2lines_bgra,
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401 width);
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402
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403 // Wait for previous storing transfer to be completed
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404 DMA_WAIT_TAG(STR_BUF);
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405 spu_mfcdma32(bgra, (unsigned int) ram_addr_bgra, size_2lines_bgra, STR_BUF, MFC_PUT_CMD);
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406 ram_addr_bgra += size_2lines_bgra;
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407 spu_mfcdma32(bgra + size_2lines_bgra, (unsigned int) ram_addr_bgra, size_2lines_bgra, STR_BUF, MFC_PUT_CMD);
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408
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409 // Wait for previous storing transfer to be completed
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410 DMA_WAIT_TAG(STR_BUF);
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411 }
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412
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413
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414 /* Some vectors needed by the yuv 2 rgb conversion algorithm */
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415 const vector float vec_minus_128 = { -128.0f, -128.0f, -128.0f, -128.0f };
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416 const vector unsigned char vec_null = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
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417 const vector unsigned char vec_char2int_first = { 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x11, 0x00, 0x00, 0x00, 0x12, 0x00, 0x00, 0x00, 0x13 };
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418 const vector unsigned char vec_char2int_second = { 0x00, 0x00, 0x00, 0x14, 0x00, 0x00, 0x00, 0x15, 0x00, 0x00, 0x00, 0x16, 0x00, 0x00, 0x00, 0x17 };
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419 const vector unsigned char vec_char2int_third = { 0x00, 0x00, 0x00, 0x18, 0x00, 0x00, 0x00, 0x19, 0x00, 0x00, 0x00, 0x1A, 0x00, 0x00, 0x00, 0x1B };
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420 const vector unsigned char vec_char2int_fourth = { 0x00, 0x00, 0x00, 0x1C, 0x00, 0x00, 0x00, 0x1D, 0x00, 0x00, 0x00, 0x1E, 0x00, 0x00, 0x00, 0x1F };
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421
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422 const vector float vec_R_precalc_coeff = {1.403f, 1.403f, 1.403f, 1.403f};
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423 const vector float vec_Gu_precalc_coeff = {-0.344f, -0.344f, -0.344f, -0.344f};
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424 const vector float vec_Gv_precalc_coeff = {-0.714f, -0.714f, -0.714f, -0.714f};
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425 const vector float vec_B_precalc_coeff = {1.773f, 1.773f, 1.773f, 1.773f};
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426
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427 const vector unsigned int vec_alpha = { 255 << 24, 255 << 24, 255 << 24, 255 << 24 };
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428
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429 const vector unsigned char vec_select_floats_upper = { 0x00, 0x01, 0x02, 0x03, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x04, 0x05, 0x06, 0x07 };
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430 const vector unsigned char vec_select_floats_lower = { 0x08, 0x09, 0x0A, 0x0B, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x0C, 0x0D, 0x0E, 0x0F };
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431
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432
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433 #ifdef TESTING
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434 /*
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435 * yuv_to_rgb_w2()
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436 *
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437 * - converts x * 4 pixels from YUV to RGB
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438 * - two lines of YUV are taken as input.
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439 * - width has to be a multiple of 2 (= 4 pixel)
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440 *
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441 * @param y_addr address of the y plane (local store)
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442 * @param v_addr address of the v plane (local store)
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443 * @param u_addr address of the u plane (local store)
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444 * @param bgra_addr_char address of the bgra output buffer (local store)
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445 * @param width the width of a line in pixel
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446 */
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447 void yuv_to_rgb_w2_line(unsigned char* y_addr, unsigned char* v_addr, unsigned char* u_addr, unsigned char* bgra_addr_char, unsigned int width) {
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448 // each pixel is stored as an integer
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449 unsigned int* bgra_addr = (unsigned int*) bgra_addr_char;
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450
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451 unsigned int x;
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452 // Go through each line in steps of 2, because every U and V value is connected to 4 pixels Y (YUV 4:2:0)
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453 for(x = 0; x < width; x+=2) {
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454 // Get the 4 Y, 1 U and 1 V values
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455 const unsigned char Y_1 = *(y_addr + x);
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456 const unsigned char Y_2 = *(y_addr + x + 1);
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457 const unsigned char Y_3 = *(y_addr + x + width);
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458 const unsigned char Y_4 = *(y_addr + x + width + 1);
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459 const unsigned char U = *(u_addr + (x >> 1));
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460 const unsigned char V = *(v_addr + (x >> 1));
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461
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462 // Start converting
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463 float V_minus_128 = (float)((float)V - 128.0f);
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464 float U_minus_128 = (float)((float)U - 128.0f);
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465
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466 float R_precalculate = 1.403f * V_minus_128;
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467 float G_precalculate = -(0.344f * U_minus_128 + 0.714f * V_minus_128);
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468 float B_precalculate = 1.773f * U_minus_128;
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469
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470 // Cast the results
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471 const unsigned char R_1 = float_to_char((Y_1 + R_precalculate));
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472 const unsigned char R_2 = float_to_char((Y_2 + R_precalculate));
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473 const unsigned char R_3 = float_to_char((Y_3 + R_precalculate));
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474 const unsigned char R_4 = float_to_char((Y_4 + R_precalculate));
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475 const unsigned char G_1 = float_to_char((Y_1 + G_precalculate));
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476 const unsigned char G_2 = float_to_char((Y_2 + G_precalculate));
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477 const unsigned char G_3 = float_to_char((Y_3 + G_precalculate));
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478 const unsigned char G_4 = float_to_char((Y_4 + G_precalculate));
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479 const unsigned char B_1 = float_to_char((Y_1 + B_precalculate));
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480 const unsigned char B_2 = float_to_char((Y_2 + B_precalculate));
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481 const unsigned char B_3 = float_to_char((Y_3 + B_precalculate));
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482 const unsigned char B_4 = float_to_char((Y_4 + B_precalculate));
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diff changeset
483
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484 // Write back
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485 *(bgra_addr + x) = (B_1 << 0)| (G_1 << 8) | (R_1 << 16) | (255 << 24);
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486 *(bgra_addr + x + 1) = (B_2 << 0)| (G_2 << 8) | (R_2 << 16) | (255 << 24);
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487 *(bgra_addr + x + width) = (B_3 << 0)| (G_3 << 8) | (R_3 << 16) | (255 << 24);
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488 *(bgra_addr + x + width + 1) = (B_4 << 0)| (G_4 << 8) | (R_4 << 16) | (255 << 24);
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489 }
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490 }
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491 #endif
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492
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493
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494 /*
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495 * yuv_to_rgb_w32()
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diff changeset
496 *
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497 * processes to line of yuv-input, width has to be a multiple of 32
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498 * two lines of yuv are taken as input
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diff changeset
499 *
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diff changeset
500 * @param y_addr address of the y plane in local store
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diff changeset
501 * @param v_addr address of the v plane in local store
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diff changeset
502 * @param u_addr address of the u plane in local store
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503 * @param bgra_addr_ address of the bgra output buffer
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diff changeset
504 * @param width the width in pixel
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505 */
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506 void yuv_to_rgb_w32_line(unsigned char* y_addr, unsigned char* v_addr, unsigned char* u_addr, unsigned char* bgra_addr_, unsigned int width) {
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507 // each pixel is stored as an integer
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508 unsigned int* bgra_addr = (unsigned int*) bgra_addr_;
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509
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510 unsigned int x;
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511 for(x = 0; x < width; x+=32) {
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512 // Gehe zweischrittig durch die zeile, da jeder u und v wert fuer 4 pixel(zwei hoch, zwei breit) gilt
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513
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514 const vector unsigned char vchar_Y_1 = *((vector unsigned char*)(y_addr + x));
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515 const vector unsigned char vchar_Y_2 = *((vector unsigned char*)(y_addr + x + 16));
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516 const vector unsigned char vchar_Y_3 = *((vector unsigned char*)(y_addr + x + width));
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517 const vector unsigned char vchar_Y_4 = *((vector unsigned char*)(y_addr + x + width + 16));
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518 const vector unsigned char vchar_U = *((vector unsigned char*)(u_addr + (x >> 1)));
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519 const vector unsigned char vchar_V = *((vector unsigned char*)(v_addr + (x >> 1)));
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520
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521 const vector float vfloat_U_1 = spu_add(spu_convtf((vector unsigned int)spu_shuffle(vec_null, vchar_U, vec_char2int_first), 0),vec_minus_128);
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522 const vector float vfloat_U_2 = spu_add(spu_convtf((vector unsigned int)spu_shuffle(vec_null, vchar_U, vec_char2int_second), 0),vec_minus_128);
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523 const vector float vfloat_U_3 = spu_add(spu_convtf((vector unsigned int)spu_shuffle(vec_null, vchar_U, vec_char2int_third), 0),vec_minus_128);
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524 const vector float vfloat_U_4 = spu_add(spu_convtf((vector unsigned int)spu_shuffle(vec_null, vchar_U, vec_char2int_fourth), 0),vec_minus_128);
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525
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526 const vector float vfloat_V_1 = spu_add(spu_convtf((vector unsigned int)spu_shuffle(vec_null, vchar_V, vec_char2int_first), 0),vec_minus_128);
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527 const vector float vfloat_V_2 = spu_add(spu_convtf((vector unsigned int)spu_shuffle(vec_null, vchar_V, vec_char2int_second), 0),vec_minus_128);
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528 const vector float vfloat_V_3 = spu_add(spu_convtf((vector unsigned int)spu_shuffle(vec_null, vchar_V, vec_char2int_third), 0),vec_minus_128);
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529 const vector float vfloat_V_4 = spu_add(spu_convtf((vector unsigned int)spu_shuffle(vec_null, vchar_V, vec_char2int_fourth), 0),vec_minus_128);
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530
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531 vector float Y_1 = spu_convtf((vector unsigned int)spu_shuffle(vec_null, vchar_Y_1, vec_char2int_first), 0);
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532 vector float Y_2 = spu_convtf((vector unsigned int)spu_shuffle(vec_null, vchar_Y_1, vec_char2int_second), 0);
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533 vector float Y_3 = spu_convtf((vector unsigned int)spu_shuffle(vec_null, vchar_Y_1, vec_char2int_third), 0);
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534 vector float Y_4 = spu_convtf((vector unsigned int)spu_shuffle(vec_null, vchar_Y_1, vec_char2int_fourth), 0);
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535 vector float Y_5 = spu_convtf((vector unsigned int)spu_shuffle(vec_null, vchar_Y_2, vec_char2int_first), 0);
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536 vector float Y_6 = spu_convtf((vector unsigned int)spu_shuffle(vec_null, vchar_Y_2, vec_char2int_second), 0);
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537 vector float Y_7 = spu_convtf((vector unsigned int)spu_shuffle(vec_null, vchar_Y_2, vec_char2int_third), 0);
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538 vector float Y_8 = spu_convtf((vector unsigned int)spu_shuffle(vec_null, vchar_Y_2, vec_char2int_fourth), 0);
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539 vector float Y_9 = spu_convtf((vector unsigned int)spu_shuffle(vec_null, vchar_Y_3, vec_char2int_first), 0);
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540 vector float Y_10 = spu_convtf((vector unsigned int)spu_shuffle(vec_null, vchar_Y_3, vec_char2int_second), 0);
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541 vector float Y_11 = spu_convtf((vector unsigned int)spu_shuffle(vec_null, vchar_Y_3, vec_char2int_third), 0);
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542 vector float Y_12 = spu_convtf((vector unsigned int)spu_shuffle(vec_null, vchar_Y_3, vec_char2int_fourth), 0);
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543 vector float Y_13 = spu_convtf((vector unsigned int)spu_shuffle(vec_null, vchar_Y_4, vec_char2int_first), 0);
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544 vector float Y_14 = spu_convtf((vector unsigned int)spu_shuffle(vec_null, vchar_Y_4, vec_char2int_second), 0);
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545 vector float Y_15 = spu_convtf((vector unsigned int)spu_shuffle(vec_null, vchar_Y_4, vec_char2int_third), 0);
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546 vector float Y_16 = spu_convtf((vector unsigned int)spu_shuffle(vec_null, vchar_Y_4, vec_char2int_fourth), 0);
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547
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548 const vector float R1a_precalculate = spu_mul(vec_R_precalc_coeff, vfloat_V_1);
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549 const vector float R2a_precalculate = spu_mul(vec_R_precalc_coeff, vfloat_V_2);
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550 const vector float R3a_precalculate = spu_mul(vec_R_precalc_coeff, vfloat_V_3);
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551 const vector float R4a_precalculate = spu_mul(vec_R_precalc_coeff, vfloat_V_4);
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552
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553 const vector float R1_precalculate = spu_shuffle(R1a_precalculate, R1a_precalculate, vec_select_floats_upper);
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554 const vector float R2_precalculate = spu_shuffle(R1a_precalculate, R1a_precalculate, vec_select_floats_lower);
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555 const vector float R3_precalculate = spu_shuffle(R2a_precalculate, R2a_precalculate, vec_select_floats_upper);
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556 const vector float R4_precalculate = spu_shuffle(R2a_precalculate, R2a_precalculate, vec_select_floats_lower);
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557 const vector float R5_precalculate = spu_shuffle(R3a_precalculate, R3a_precalculate, vec_select_floats_upper);
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558 const vector float R6_precalculate = spu_shuffle(R3a_precalculate, R3a_precalculate, vec_select_floats_lower);
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559 const vector float R7_precalculate = spu_shuffle(R4a_precalculate, R4a_precalculate, vec_select_floats_upper);
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560 const vector float R8_precalculate = spu_shuffle(R4a_precalculate, R4a_precalculate, vec_select_floats_lower);
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diff changeset
561
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diff changeset
562
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563 const vector float G1a_precalculate = spu_madd(vec_Gu_precalc_coeff, vfloat_U_1, spu_mul(vfloat_V_1, vec_Gv_precalc_coeff));
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564 const vector float G2a_precalculate = spu_madd(vec_Gu_precalc_coeff, vfloat_U_2, spu_mul(vfloat_V_2, vec_Gv_precalc_coeff));
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565 const vector float G3a_precalculate = spu_madd(vec_Gu_precalc_coeff, vfloat_U_3, spu_mul(vfloat_V_3, vec_Gv_precalc_coeff));
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566 const vector float G4a_precalculate = spu_madd(vec_Gu_precalc_coeff, vfloat_U_4, spu_mul(vfloat_V_4, vec_Gv_precalc_coeff));
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567
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568 const vector float G1_precalculate = spu_shuffle(G1a_precalculate, G1a_precalculate, vec_select_floats_upper);
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diff changeset
569 const vector float G2_precalculate = spu_shuffle(G1a_precalculate, G1a_precalculate, vec_select_floats_lower);
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570 const vector float G3_precalculate = spu_shuffle(G2a_precalculate, G2a_precalculate, vec_select_floats_upper);
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571 const vector float G4_precalculate = spu_shuffle(G2a_precalculate, G2a_precalculate, vec_select_floats_lower);
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572 const vector float G5_precalculate = spu_shuffle(G3a_precalculate, G3a_precalculate, vec_select_floats_upper);
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573 const vector float G6_precalculate = spu_shuffle(G3a_precalculate, G3a_precalculate, vec_select_floats_lower);
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574 const vector float G7_precalculate = spu_shuffle(G4a_precalculate, G4a_precalculate, vec_select_floats_upper);
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575 const vector float G8_precalculate = spu_shuffle(G4a_precalculate, G4a_precalculate, vec_select_floats_lower);
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diff changeset
576
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diff changeset
577
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578 const vector float B1a_precalculate = spu_mul(vec_B_precalc_coeff, vfloat_U_1);
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579 const vector float B2a_precalculate = spu_mul(vec_B_precalc_coeff, vfloat_U_2);
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580 const vector float B3a_precalculate = spu_mul(vec_B_precalc_coeff, vfloat_U_3);
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581 const vector float B4a_precalculate = spu_mul(vec_B_precalc_coeff, vfloat_U_4);
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diff changeset
582
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583 const vector float B1_precalculate = spu_shuffle(B1a_precalculate, B1a_precalculate, vec_select_floats_upper);
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diff changeset
584 const vector float B2_precalculate = spu_shuffle(B1a_precalculate, B1a_precalculate, vec_select_floats_lower);
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585 const vector float B3_precalculate = spu_shuffle(B2a_precalculate, B2a_precalculate, vec_select_floats_upper);
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586 const vector float B4_precalculate = spu_shuffle(B2a_precalculate, B2a_precalculate, vec_select_floats_lower);
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diff changeset
587 const vector float B5_precalculate = spu_shuffle(B3a_precalculate, B3a_precalculate, vec_select_floats_upper);
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diff changeset
588 const vector float B6_precalculate = spu_shuffle(B3a_precalculate, B3a_precalculate, vec_select_floats_lower);
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diff changeset
589 const vector float B7_precalculate = spu_shuffle(B4a_precalculate, B4a_precalculate, vec_select_floats_upper);
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diff changeset
590 const vector float B8_precalculate = spu_shuffle(B4a_precalculate, B4a_precalculate, vec_select_floats_lower);
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diff changeset
591
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diff changeset
592
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diff changeset
593 const vector unsigned int R_1 = vfloat_to_vuint(spu_add( Y_1, R1_precalculate));
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diff changeset
594 const vector unsigned int R_2 = vfloat_to_vuint(spu_add( Y_2, R2_precalculate));
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diff changeset
595 const vector unsigned int R_3 = vfloat_to_vuint(spu_add( Y_3, R3_precalculate));
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diff changeset
596 const vector unsigned int R_4 = vfloat_to_vuint(spu_add( Y_4, R4_precalculate));
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diff changeset
597 const vector unsigned int R_5 = vfloat_to_vuint(spu_add( Y_5, R5_precalculate));
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diff changeset
598 const vector unsigned int R_6 = vfloat_to_vuint(spu_add( Y_6, R6_precalculate));
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diff changeset
599 const vector unsigned int R_7 = vfloat_to_vuint(spu_add( Y_7, R7_precalculate));
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diff changeset
600 const vector unsigned int R_8 = vfloat_to_vuint(spu_add( Y_8, R8_precalculate));
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601 const vector unsigned int R_9 = vfloat_to_vuint(spu_add( Y_9, R1_precalculate));
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602 const vector unsigned int R_10 = vfloat_to_vuint(spu_add(Y_10, R2_precalculate));
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603 const vector unsigned int R_11 = vfloat_to_vuint(spu_add(Y_11, R3_precalculate));
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604 const vector unsigned int R_12 = vfloat_to_vuint(spu_add(Y_12, R4_precalculate));
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605 const vector unsigned int R_13 = vfloat_to_vuint(spu_add(Y_13, R5_precalculate));
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606 const vector unsigned int R_14 = vfloat_to_vuint(spu_add(Y_14, R6_precalculate));
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607 const vector unsigned int R_15 = vfloat_to_vuint(spu_add(Y_15, R7_precalculate));
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608 const vector unsigned int R_16 = vfloat_to_vuint(spu_add(Y_16, R8_precalculate));
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diff changeset
609
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610 const vector unsigned int G_1 = vfloat_to_vuint(spu_add( Y_1, G1_precalculate));
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611 const vector unsigned int G_2 = vfloat_to_vuint(spu_add( Y_2, G2_precalculate));
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612 const vector unsigned int G_3 = vfloat_to_vuint(spu_add( Y_3, G3_precalculate));
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613 const vector unsigned int G_4 = vfloat_to_vuint(spu_add( Y_4, G4_precalculate));
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614 const vector unsigned int G_5 = vfloat_to_vuint(spu_add( Y_5, G5_precalculate));
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615 const vector unsigned int G_6 = vfloat_to_vuint(spu_add( Y_6, G6_precalculate));
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616 const vector unsigned int G_7 = vfloat_to_vuint(spu_add( Y_7, G7_precalculate));
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617 const vector unsigned int G_8 = vfloat_to_vuint(spu_add( Y_8, G8_precalculate));
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618 const vector unsigned int G_9 = vfloat_to_vuint(spu_add( Y_9, G1_precalculate));
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diff changeset
619 const vector unsigned int G_10 = vfloat_to_vuint(spu_add(Y_10, G2_precalculate));
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620 const vector unsigned int G_11 = vfloat_to_vuint(spu_add(Y_11, G3_precalculate));
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diff changeset
621 const vector unsigned int G_12 = vfloat_to_vuint(spu_add(Y_12, G4_precalculate));
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622 const vector unsigned int G_13 = vfloat_to_vuint(spu_add(Y_13, G5_precalculate));
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diff changeset
623 const vector unsigned int G_14 = vfloat_to_vuint(spu_add(Y_14, G6_precalculate));
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624 const vector unsigned int G_15 = vfloat_to_vuint(spu_add(Y_15, G7_precalculate));
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625 const vector unsigned int G_16 = vfloat_to_vuint(spu_add(Y_16, G8_precalculate));
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diff changeset
626
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627 const vector unsigned int B_1 = vfloat_to_vuint(spu_add( Y_1, B1_precalculate));
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628 const vector unsigned int B_2 = vfloat_to_vuint(spu_add( Y_2, B2_precalculate));
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diff changeset
629 const vector unsigned int B_3 = vfloat_to_vuint(spu_add( Y_3, B3_precalculate));
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630 const vector unsigned int B_4 = vfloat_to_vuint(spu_add( Y_4, B4_precalculate));
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631 const vector unsigned int B_5 = vfloat_to_vuint(spu_add( Y_5, B5_precalculate));
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632 const vector unsigned int B_6 = vfloat_to_vuint(spu_add( Y_6, B6_precalculate));
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633 const vector unsigned int B_7 = vfloat_to_vuint(spu_add( Y_7, B7_precalculate));
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634 const vector unsigned int B_8 = vfloat_to_vuint(spu_add( Y_8, B8_precalculate));
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635 const vector unsigned int B_9 = vfloat_to_vuint(spu_add( Y_9, B1_precalculate));
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636 const vector unsigned int B_10 = vfloat_to_vuint(spu_add(Y_10, B2_precalculate));
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637 const vector unsigned int B_11 = vfloat_to_vuint(spu_add(Y_11, B3_precalculate));
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diff changeset
638 const vector unsigned int B_12 = vfloat_to_vuint(spu_add(Y_12, B4_precalculate));
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diff changeset
639 const vector unsigned int B_13 = vfloat_to_vuint(spu_add(Y_13, B5_precalculate));
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640 const vector unsigned int B_14 = vfloat_to_vuint(spu_add(Y_14, B6_precalculate));
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diff changeset
641 const vector unsigned int B_15 = vfloat_to_vuint(spu_add(Y_15, B7_precalculate));
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642 const vector unsigned int B_16 = vfloat_to_vuint(spu_add(Y_16, B8_precalculate));
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diff changeset
643
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644 *((vector unsigned int*)(bgra_addr + x)) = spu_or(spu_or(vec_alpha, B_1), spu_or(spu_slqwbyte( R_1, 2),spu_slqwbyte(G_1, 1)));
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645 *((vector unsigned int*)(bgra_addr + x + 4)) = spu_or(spu_or(vec_alpha, B_2), spu_or(spu_slqwbyte( R_2, 2),spu_slqwbyte(G_2, 1)));
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646 *((vector unsigned int*)(bgra_addr + x + 8)) = spu_or(spu_or(vec_alpha, B_3), spu_or(spu_slqwbyte( R_3, 2),spu_slqwbyte(G_3, 1)));
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parents:
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647 *((vector unsigned int*)(bgra_addr + x + 12)) = spu_or(spu_or(vec_alpha, B_4), spu_or(spu_slqwbyte( R_4, 2),spu_slqwbyte(G_4, 1)));
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648 *((vector unsigned int*)(bgra_addr + x + 16)) = spu_or(spu_or(vec_alpha, B_5), spu_or(spu_slqwbyte( R_5, 2),spu_slqwbyte(G_5, 1)));
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649 *((vector unsigned int*)(bgra_addr + x + 20)) = spu_or(spu_or(vec_alpha, B_6), spu_or(spu_slqwbyte( R_6, 2),spu_slqwbyte(G_6, 1)));
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diff changeset
650 *((vector unsigned int*)(bgra_addr + x + 24)) = spu_or(spu_or(vec_alpha, B_7), spu_or(spu_slqwbyte( R_7, 2),spu_slqwbyte(G_7, 1)));
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651 *((vector unsigned int*)(bgra_addr + x + 28)) = spu_or(spu_or(vec_alpha, B_8), spu_or(spu_slqwbyte( R_8, 2),spu_slqwbyte(G_8, 1)));
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diff changeset
652 *((vector unsigned int*)(bgra_addr + x + width)) = spu_or(spu_or(vec_alpha, B_9), spu_or(spu_slqwbyte( R_9, 2),spu_slqwbyte(G_9, 1)));
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diff changeset
653 *((vector unsigned int*)(bgra_addr + x + width + 4)) = spu_or(spu_or(vec_alpha, B_10), spu_or(spu_slqwbyte(R_10, 2),spu_slqwbyte(G_10, 1)));
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diff changeset
654 *((vector unsigned int*)(bgra_addr + x + width + 8)) = spu_or(spu_or(vec_alpha, B_11), spu_or(spu_slqwbyte(R_11, 2),spu_slqwbyte(G_11, 1)));
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Sam Lantinga <slouken@libsdl.org>
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diff changeset
655 *((vector unsigned int*)(bgra_addr + x + width + 12)) = spu_or(spu_or(vec_alpha, B_12), spu_or(spu_slqwbyte(R_12, 2),spu_slqwbyte(G_12, 1)));
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diff changeset
656 *((vector unsigned int*)(bgra_addr + x + width + 16)) = spu_or(spu_or(vec_alpha, B_13), spu_or(spu_slqwbyte(R_13, 2),spu_slqwbyte(G_13, 1)));
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diff changeset
657 *((vector unsigned int*)(bgra_addr + x + width + 20)) = spu_or(spu_or(vec_alpha, B_14), spu_or(spu_slqwbyte(R_14, 2),spu_slqwbyte(G_14, 1)));
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Sam Lantinga <slouken@libsdl.org>
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diff changeset
658 *((vector unsigned int*)(bgra_addr + x + width + 24)) = spu_or(spu_or(vec_alpha, B_15), spu_or(spu_slqwbyte(R_15, 2),spu_slqwbyte(G_15, 1)));
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parents:
diff changeset
659 *((vector unsigned int*)(bgra_addr + x + width + 28)) = spu_or(spu_or(vec_alpha, B_16), spu_or(spu_slqwbyte(R_16, 2),spu_slqwbyte(G_16, 1)));
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parents:
diff changeset
660 }
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parents:
diff changeset
661 }
94fb40a4a9a7 Merged Martin's code changes from Google Summer of Code 2009
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diff changeset
662