Mercurial > sdl-ios-xcode

annotate src/video/fbcon/SDL_fb3dfx.c @ 4559:f8c3870af5a2

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Fixed X11 error when running under window managers that don't support the _NET_SUPPORTING_WM_CHECK protocol.
author Sam Lantinga <slouken@libsdl.org>
date Tue, 20 Jul 2010 00:57:01 -0700
parents f7b03b6838cb
children
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2010 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
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24 #include "SDL_video.h"
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25 #include "../SDL_blit.h"
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26 #include "SDL_fb3dfx.h"
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27 #include "3dfx_mmio.h"
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28
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29
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30 /* Wait for vertical retrace */
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31 static void
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32 WaitVBL(_THIS)
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33 {
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34 /* find start of retrace */
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35 tdfx_waitidle();
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36 while ((tdfx_in32(TDFX_STATUS) & STATUS_RETRACE) == STATUS_RETRACE);
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37 /* wait until we're past the start */
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38 while ((tdfx_in32(TDFX_STATUS) & STATUS_RETRACE) == 0);
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39 }
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40
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41 static void
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42 WaitIdle(_THIS)
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43 {
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44 tdfx_waitidle();
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45 }
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46
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47 /* Sets video mem colorkey and accelerated blit function */
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48 static int
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49 SetHWColorKey(_THIS, SDL_Surface * surface, Uint32 key)
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50 {
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51 return (0);
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52 }
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53
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54 static int
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55 FillHWRect(_THIS, SDL_Surface * dst, SDL_Rect * rect, Uint32 color)
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56 {
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57 int bpp;
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58 char *dst_base;
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59 Uint32 format;
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60 int dstX, dstY;
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61
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62 /* Don't blit to the display surface when switched away */
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63 if (switched_away) {
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64 return -2; /* no hardware access */
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65 }
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66 if (dst == this->screen) {
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67 SDL_mutexP(hw_lock);
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68 }
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69
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70 /* Set the destination pixel format */
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71 dst_base = (char *) ((char *) dst->pixels - mapped_mem);
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72 bpp = dst->format->BitsPerPixel;
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73 format = dst->pitch | ((bpp + ((bpp == 8) ? 0 : 8)) << 13);
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74
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75 /* Calculate source and destination base coordinates */
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76 dstX = rect->x;
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77 dstY = rect->y;
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78
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79 /* Execute the fill command */
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80 tdfx_wait(6);
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81 tdfx_out32(DSTBASE, (Uint32) dst_base);
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82 tdfx_out32(DSTFORMAT, format);
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83 tdfx_out32(COLORFORE, color);
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84 tdfx_out32(COMMAND_2D, COMMAND_2D_FILLRECT);
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85 tdfx_out32(DSTSIZE, rect->w | (rect->h << 16));
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86 tdfx_out32(LAUNCH_2D, dstX | (dstY << 16));
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87
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88 FB_AddBusySurface(dst);
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89
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90 if (dst == this->screen) {
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91 SDL_mutexV(hw_lock);
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92 }
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93 return (0);
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94 }
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95
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96 static int
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97 HWAccelBlit(SDL_Surface * src, SDL_Rect * srcrect,
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98 SDL_Surface * dst, SDL_Rect * dstrect)
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99 {
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100 SDL_VideoDevice *this = current_video;
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101 int bpp;
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102 Uint32 src_format;
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103 Uint32 dst_format;
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104 char *src_base;
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105 char *dst_base;
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106 int srcX, srcY;
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107 int dstX, dstY;
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108 Uint32 blitop;
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109 Uint32 use_colorkey;
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110
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111 /* Don't blit to the display surface when switched away */
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112 if (switched_away) {
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113 return -2; /* no hardware access */
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114 }
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115 if (dst == this->screen) {
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116 SDL_mutexP(hw_lock);
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117 }
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118
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119 /* Set the source and destination pixel format */
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120 src_base = (char *) ((char *) src->pixels - mapped_mem);
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121 bpp = src->format->BitsPerPixel;
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122 src_format = src->pitch | ((bpp + ((bpp == 8) ? 0 : 8)) << 13);
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123 dst_base = (char *) ((char *) dst->pixels - mapped_mem);
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124 bpp = dst->format->BitsPerPixel;
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125 dst_format = dst->pitch | ((bpp + ((bpp == 8) ? 0 : 8)) << 13);
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126
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127 srcX = srcrect->x;
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128 srcY = srcrect->y;
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129 dstX = dstrect->x;
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130 dstY = dstrect->y;
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131
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132 /* Assemble the blit operation */
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133 blitop = COMMAND_2D_BITBLT | (0xCC << 24);
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134 if (srcX <= dstX) {
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135 blitop |= BIT(14);
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136 srcX += (dstrect->w - 1);
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137 dstX += (dstrect->w - 1);
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138 }
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139 if (srcY <= dstY) {
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140 blitop |= BIT(15);
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141 srcY += (dstrect->h - 1);
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142 dstY += (dstrect->h - 1);
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143 }
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144
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145 /* Perform the blit! */
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146 if ((src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY) {
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147 tdfx_wait(3);
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148 tdfx_out32(SRCCOLORKEYMIN, src->format->colorkey);
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149 tdfx_out32(SRCCOLORKEYMAX, src->format->colorkey);
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150 tdfx_out32(ROP_2D, 0xAA00);
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151 use_colorkey = 1;
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152 } else {
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153 use_colorkey = 0;
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154 }
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155 tdfx_wait(9);
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156 tdfx_out32(SRCBASE, (Uint32) src_base);
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157 tdfx_out32(SRCFORMAT, src_format);
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158 tdfx_out32(DSTBASE, (Uint32) dst_base);
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159 tdfx_out32(DSTFORMAT, src_format);
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160 tdfx_out32(COMMAND_2D, blitop);
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161 tdfx_out32(COMMANDEXTRA_2D, use_colorkey);
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162 tdfx_out32(DSTSIZE, dstrect->w | (dstrect->h << 16));
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163 tdfx_out32(DSTXY, dstX | (dstY << 16));
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164 tdfx_out32(LAUNCH_2D, srcX | (srcY << 16));
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165
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166 FB_AddBusySurface(src);
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167 FB_AddBusySurface(dst);
106
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168
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169 if (dst == this->screen) {
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170 SDL_mutexV(hw_lock);
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171 }
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172 return (0);
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173 }
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174
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175 static int
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176 CheckHWBlit(_THIS, SDL_Surface * src, SDL_Surface * dst)
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177 {
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178 int accelerated;
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179
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180 /* Set initial acceleration on */
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181 src->flags |= SDL_HWACCEL;
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182
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183 /* Set the surface attributes */
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184 if ((src->flags & SDL_SRCALPHA) == SDL_SRCALPHA) {
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185 if (!this->info.blit_hw_A) {
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186 src->flags &= ~SDL_HWACCEL;
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187 }
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188 }
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189 if ((src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY) {
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190 if (!this->info.blit_hw_CC) {
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191 src->flags &= ~SDL_HWACCEL;
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192 }
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193 }
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194
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195 /* Check to see if final surface blit is accelerated */
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196 accelerated = !!(src->flags & SDL_HWACCEL);
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197 if (accelerated) {
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198 src->map->hw_blit = HWAccelBlit;
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199 }
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200 return (accelerated);
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201 }
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202
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203 void
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204 FB_3DfxAccel(_THIS, __u32 card)
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205 {
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206 /* We have hardware accelerated surface functions */
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207 this->CheckHWBlit = CheckHWBlit;
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208 wait_vbl = WaitVBL;
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209 wait_idle = WaitIdle;
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210
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211 /* Reset the 3Dfx controller */
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212 tdfx_out32(BRESERROR0, 0);
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213 tdfx_out32(BRESERROR1, 0);
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214
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215 /* The 3Dfx has an accelerated color fill */
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216 this->info.blit_fill = 1;
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217 this->FillHWRect = FillHWRect;
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218
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219 /* The 3Dfx has accelerated normal and colorkey blits */
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220 this->info.blit_hw = 1;
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221 this->info.blit_hw_CC = 1;
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222 this->SetHWColorKey = SetHWColorKey;
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223 }
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224
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225 /* vi: set ts=4 sw=4 expandtab: */