annotate src/video/windx5/SDL_dx5yuv.c @ 4050:ef815c44c662 SDL-1.2

Warn Visual C++ users if they have a stale configure generated SDL_config.h
author Sam Lantinga <slouken@libsdl.org>
date Thu, 12 Jul 2007 02:51:58 +0000
parents 51038e80ae59
children 782fd950bd46 c121d94672cb 96ce26f24b01
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
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24 /* This is the DirectDraw implementation of YUV video overlays */
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25
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26 #include "SDL_video.h"
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27 #include "SDL_dx5yuv_c.h"
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28 #include "../SDL_yuvfuncs.h"
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29
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30 //#define USE_DIRECTX_OVERLAY
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31
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32 /* The functions used to manipulate software video overlays */
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33 static struct private_yuvhwfuncs dx5_yuvfuncs = {
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34 DX5_LockYUVOverlay,
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35 DX5_UnlockYUVOverlay,
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36 DX5_DisplayYUVOverlay,
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37 DX5_FreeYUVOverlay
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38 };
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39
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40 struct private_yuvhwdata {
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41 LPDIRECTDRAWSURFACE3 surface;
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42
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43 /* These are just so we don't have to allocate them separately */
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44 Uint16 pitches[3];
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45 Uint8 *planes[3];
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46 };
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47
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48
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49 static LPDIRECTDRAWSURFACE3 CreateYUVSurface(_THIS,
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50 int width, int height, Uint32 format)
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51 {
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52 HRESULT result;
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53 LPDIRECTDRAWSURFACE dd_surface1;
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54 LPDIRECTDRAWSURFACE3 dd_surface3;
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55 DDSURFACEDESC ddsd;
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56
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57 /* Set up the surface description */
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58 SDL_memset(&ddsd, 0, sizeof(ddsd));
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59 ddsd.dwSize = sizeof(ddsd);
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60 ddsd.dwFlags = (DDSD_WIDTH|DDSD_HEIGHT|DDSD_CAPS|DDSD_PIXELFORMAT);
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61 ddsd.dwWidth = width;
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62 ddsd.dwHeight= height;
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63 #ifdef USE_DIRECTX_OVERLAY
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64 ddsd.ddsCaps.dwCaps = (DDSCAPS_OVERLAY|DDSCAPS_VIDEOMEMORY);
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65 #else
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66 ddsd.ddsCaps.dwCaps = (DDSCAPS_OFFSCREENPLAIN|DDSCAPS_VIDEOMEMORY);
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67 #endif
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68 ddsd.ddpfPixelFormat.dwSize = sizeof(ddsd.ddpfPixelFormat);
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69 ddsd.ddpfPixelFormat.dwFlags = DDPF_FOURCC;
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70 ddsd.ddpfPixelFormat.dwFourCC = format;
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71
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72 /* Create the DirectDraw video surface */
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73 result = IDirectDraw2_CreateSurface(ddraw2, &ddsd, &dd_surface1, NULL);
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74 if ( result != DD_OK ) {
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75 SetDDerror("DirectDraw2::CreateSurface", result);
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76 return(NULL);
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77 }
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78 result = IDirectDrawSurface_QueryInterface(dd_surface1,
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79 &IID_IDirectDrawSurface3, (LPVOID *)&dd_surface3);
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80 IDirectDrawSurface_Release(dd_surface1);
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81 if ( result != DD_OK ) {
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82 SetDDerror("DirectDrawSurface::QueryInterface", result);
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83 return(NULL);
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84 }
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85
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86 /* Make sure the surface format was set properly */
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87 SDL_memset(&ddsd, 0, sizeof(ddsd));
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88 ddsd.dwSize = sizeof(ddsd);
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89 result = IDirectDrawSurface3_Lock(dd_surface3, NULL,
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90 &ddsd, DDLOCK_NOSYSLOCK, NULL);
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91 if ( result != DD_OK ) {
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92 SetDDerror("DirectDrawSurface3::Lock", result);
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93 IDirectDrawSurface_Release(dd_surface3);
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94 return(NULL);
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95 }
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96 IDirectDrawSurface3_Unlock(dd_surface3, NULL);
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97
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98 if ( !(ddsd.ddpfPixelFormat.dwFlags & DDPF_FOURCC) ||
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99 (ddsd.ddpfPixelFormat.dwFourCC != format) ) {
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100 SDL_SetError("DDraw didn't use requested FourCC format");
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101 IDirectDrawSurface_Release(dd_surface3);
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102 return(NULL);
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103 }
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104
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105 /* We're ready to go! */
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106 return(dd_surface3);
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107 }
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108
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109 #ifdef DEBUG_YUV
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110 static char *PrintFOURCC(Uint32 code)
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111 {
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112 static char buf[5];
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113
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114 buf[3] = code >> 24;
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115 buf[2] = (code >> 16) & 0xFF;
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116 buf[1] = (code >> 8) & 0xFF;
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117 buf[0] = (code & 0xFF);
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118 return(buf);
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119 }
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120 #endif
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121
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122 SDL_Overlay *DX5_CreateYUVOverlay(_THIS, int width, int height, Uint32 format, SDL_Surface *display)
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123 {
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124 SDL_Overlay *overlay;
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125 struct private_yuvhwdata *hwdata;
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126
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127 #ifdef DEBUG_YUV
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128 DWORD numcodes;
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129 DWORD *codes;
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130
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131 printf("FOURCC format requested: 0x%x\n", PrintFOURCC(format));
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132 IDirectDraw2_GetFourCCCodes(ddraw2, &numcodes, NULL);
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133 if ( numcodes ) {
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134 DWORD i;
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135 codes = SDL_malloc(numcodes*sizeof(*codes));
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136 if ( codes ) {
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137 IDirectDraw2_GetFourCCCodes(ddraw2, &numcodes, codes);
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138 for ( i=0; i<numcodes; ++i ) {
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139 fprintf(stderr, "Code %d: 0x%x\n", i, PrintFOURCC(codes[i]));
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140 }
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141 SDL_free(codes);
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142 }
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143 } else {
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144 fprintf(stderr, "No FOURCC codes supported\n");
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145 }
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146 #endif
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147
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148 /* Create the overlay structure */
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149 overlay = (SDL_Overlay *)SDL_malloc(sizeof *overlay);
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150 if ( overlay == NULL ) {
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151 SDL_OutOfMemory();
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152 return(NULL);
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153 }
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154 SDL_memset(overlay, 0, (sizeof *overlay));
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155
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156 /* Fill in the basic members */
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157 overlay->format = format;
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158 overlay->w = width;
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159 overlay->h = height;
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160
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161 /* Set up the YUV surface function structure */
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162 overlay->hwfuncs = &dx5_yuvfuncs;
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163
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164 /* Create the pixel data and lookup tables */
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165 hwdata = (struct private_yuvhwdata *)SDL_malloc(sizeof *hwdata);
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166 overlay->hwdata = hwdata;
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167 if ( hwdata == NULL ) {
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168 SDL_OutOfMemory();
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169 SDL_FreeYUVOverlay(overlay);
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170 return(NULL);
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171 }
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172 hwdata->surface = CreateYUVSurface(this, width, height, format);
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173 if ( hwdata->surface == NULL ) {
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174 SDL_FreeYUVOverlay(overlay);
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175 return(NULL);
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176 }
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177 overlay->hw_overlay = 1;
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178
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179 /* Set up the plane pointers */
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180 overlay->pitches = hwdata->pitches;
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181 overlay->pixels = hwdata->planes;
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182 switch (format) {
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183 case SDL_YV12_OVERLAY:
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184 case SDL_IYUV_OVERLAY:
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185 overlay->planes = 3;
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186 break;
0
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187 default:
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188 overlay->planes = 1;
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189 break;
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190 }
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191
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192 /* We're all done.. */
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193 return(overlay);
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194 }
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195
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196 int DX5_LockYUVOverlay(_THIS, SDL_Overlay *overlay)
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197 {
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198 HRESULT result;
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199 LPDIRECTDRAWSURFACE3 surface;
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200 DDSURFACEDESC ddsd;
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201
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202 surface = overlay->hwdata->surface;
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203 SDL_memset(&ddsd, 0, sizeof(ddsd));
0
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204 ddsd.dwSize = sizeof(ddsd);
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205 result = IDirectDrawSurface3_Lock(surface, NULL,
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206 &ddsd, DDLOCK_NOSYSLOCK, NULL);
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207 if ( result == DDERR_SURFACELOST ) {
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208 result = IDirectDrawSurface3_Restore(surface);
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209 result = IDirectDrawSurface3_Lock(surface, NULL, &ddsd,
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210 (DDLOCK_NOSYSLOCK|DDLOCK_WAIT), NULL);
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211 }
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212 if ( result != DD_OK ) {
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213 SetDDerror("DirectDrawSurface3::Lock", result);
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214 return(-1);
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215 }
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216
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217 /* Find the pitch and offset values for the overlay */
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218 #if defined(NONAMELESSUNION)
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219 overlay->pitches[0] = (Uint16)ddsd.u1.lPitch;
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220 #else
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221 overlay->pitches[0] = (Uint16)ddsd.lPitch;
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222 #endif
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223 overlay->pixels[0] = (Uint8 *)ddsd.lpSurface;
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224 switch (overlay->format) {
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225 case SDL_YV12_OVERLAY:
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226 case SDL_IYUV_OVERLAY:
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227 /* Add the two extra planes */
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228 overlay->pitches[1] = overlay->pitches[0] / 2;
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229 overlay->pitches[2] = overlay->pitches[0] / 2;
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230 overlay->pixels[1] = overlay->pixels[0] +
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231 overlay->pitches[0] * overlay->h;
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232 overlay->pixels[2] = overlay->pixels[1] +
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233 overlay->pitches[1] * overlay->h / 2;
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234 break;
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235 default:
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236 /* Only one plane, no worries */
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237 break;
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238 }
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239 return(0);
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240 }
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241
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242 void DX5_UnlockYUVOverlay(_THIS, SDL_Overlay *overlay)
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243 {
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244 LPDIRECTDRAWSURFACE3 surface;
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245
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246 surface = overlay->hwdata->surface;
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247 IDirectDrawSurface3_Unlock(surface, NULL);
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248 }
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249
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250 int DX5_DisplayYUVOverlay(_THIS, SDL_Overlay *overlay, SDL_Rect *src, SDL_Rect *dst)
0
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251 {
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252 HRESULT result;
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253 LPDIRECTDRAWSURFACE3 surface;
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254 RECT srcrect, dstrect;
0
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255
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256 surface = overlay->hwdata->surface;
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diff changeset
257 srcrect.top = src->y;
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diff changeset
258 srcrect.bottom = srcrect.top+src->h;
51038e80ae59 More general fix for bug #189
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diff changeset
259 srcrect.left = src->x;
51038e80ae59 More general fix for bug #189
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260 srcrect.right = srcrect.left+src->w;
51038e80ae59 More general fix for bug #189
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diff changeset
261 dstrect.top = SDL_bounds.top+dst->y;
51038e80ae59 More general fix for bug #189
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diff changeset
262 dstrect.left = SDL_bounds.left+dst->x;
51038e80ae59 More general fix for bug #189
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diff changeset
263 dstrect.bottom = dstrect.top+dst->h;
51038e80ae59 More general fix for bug #189
Sam Lantinga <slouken@libsdl.org>
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diff changeset
264 dstrect.right = dstrect.left+dst->w;
0
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diff changeset
265 #ifdef USE_DIRECTX_OVERLAY
1643
51038e80ae59 More general fix for bug #189
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diff changeset
266 result = IDirectDrawSurface3_UpdateOverlay(surface, &srcrect,
51038e80ae59 More general fix for bug #189
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parents: 1402
diff changeset
267 SDL_primary, &dstrect, DDOVER_SHOW, NULL);
0
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diff changeset
268 if ( result != DD_OK ) {
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diff changeset
269 SetDDerror("DirectDrawSurface3::UpdateOverlay", result);
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diff changeset
270 return(-1);
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diff changeset
271 }
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diff changeset
272 #else
1643
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diff changeset
273 result = IDirectDrawSurface3_Blt(SDL_primary, &dstrect, surface, &srcrect,
0
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diff changeset
274 DDBLT_WAIT, NULL);
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diff changeset
275 if ( result != DD_OK ) {
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diff changeset
276 SetDDerror("DirectDrawSurface3::Blt", result);
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diff changeset
277 return(-1);
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diff changeset
278 }
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diff changeset
279 #endif
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diff changeset
280 return(0);
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diff changeset
281 }
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diff changeset
282
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diff changeset
283 void DX5_FreeYUVOverlay(_THIS, SDL_Overlay *overlay)
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diff changeset
284 {
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diff changeset
285 struct private_yuvhwdata *hwdata;
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parents:
diff changeset
286
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diff changeset
287 hwdata = overlay->hwdata;
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parents:
diff changeset
288 if ( hwdata ) {
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parents:
diff changeset
289 if ( hwdata->surface ) {
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parents:
diff changeset
290 IDirectDrawSurface_Release(hwdata->surface);
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parents:
diff changeset
291 }
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1330
diff changeset
292 SDL_free(hwdata);
0
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parents:
diff changeset
293 }
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parents:
diff changeset
294 }
74212992fb08 Initial revision
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parents:
diff changeset
295