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annotate src/video/fbcon/SDL_fbriva.c @ 2185:2032348afed1

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This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is available and to keep people form having to install yet another library I have added the essential parts of Xmu in src/video/extensions/XmuStdCmap and an include file in src/video/extensions. The support makes use of standard X11 mechanisms to create color maps and make sure that an application uses the same color map for each window/visual combination. This should make it possible for gamma support to be implemented based on a single color map per application. Hurm... it looks like "make indent" modified a few extra files. Those are getting committed too.
author Bob Pendleton <bob@pendleton.com>
date Thu, 12 Jul 2007 20:00:50 +0000
parents c121d94672cb
children e1da92da346c
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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24 #include "SDL_video.h"
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25 #include "../SDL_blit.h"
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26 #include "SDL_fbriva.h"
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27 #include "riva_mmio.h"
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28 #include "riva_regs.h"
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30
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31 static int FifoEmptyCount = 0;
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32 static int FifoFreeCount = 0;
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34 /* Wait for vertical retrace */
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35 static void
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36 WaitVBL(_THIS)
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37 {
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38 volatile Uint8 *port = (Uint8 *) (mapped_io + PCIO_OFFSET + 0x3DA);
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39
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40 while ((*port & 0x08));
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41 while (!(*port & 0x08));
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42 }
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43 static void
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44 NV3WaitIdle(_THIS)
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45 {
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46 RivaRop *Rop = (RivaRop *) (mapped_io + ROP_OFFSET);
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47 while ((Rop->FifoFree < FifoEmptyCount) ||
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48 (*(mapped_io + PGRAPH_OFFSET + 0x000006B0) & 0x01));
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49 }
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50 static void
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51 NV4WaitIdle(_THIS)
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52 {
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53 RivaRop *Rop = (RivaRop *) (mapped_io + ROP_OFFSET);
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54 while ((Rop->FifoFree < FifoEmptyCount) ||
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55 (*(mapped_io + PGRAPH_OFFSET + 0x00000700) & 0x01));
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56 }
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57
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58 #if 0 /* Not yet implemented? */
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59 /* Sets video mem colorkey and accelerated blit function */
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60 static int
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61 SetHWColorKey(_THIS, SDL_Surface * surface, Uint32 key)
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62 {
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63 return (0);
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64 }
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65
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66 /* Sets per surface hardware alpha value */
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67 static int
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68 SetHWAlpha(_THIS, SDL_Surface * surface, Uint8 value)
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69 {
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70 return (0);
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71 }
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72 #endif /* Not yet implemented */
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73
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74 static int
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75 FillHWRect(_THIS, SDL_Surface * dst, SDL_Rect * rect, Uint32 color)
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76 {
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77 int dstX, dstY;
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78 int dstW, dstH;
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79 RivaBitmap *Bitmap = (RivaBitmap *) (mapped_io + BITMAP_OFFSET);
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80
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81 /* Don't blit to the display surface when switched away */
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82 if (switched_away) {
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83 return -2; /* no hardware access */
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84 }
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85 if (dst == this->screen) {
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86 SDL_mutexP(hw_lock);
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87 }
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88
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89 /* Set up the X/Y base coordinates */
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90 dstW = rect->w;
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91 dstH = rect->h;
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92 FB_dst_to_xy(this, dst, &dstX, &dstY);
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93
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94 /* Adjust for the current rectangle */
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95 dstX += rect->x;
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96 dstY += rect->y;
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97
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98 RIVA_FIFO_FREE(Bitmap, 1);
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99 Bitmap->Color1A = color;
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100
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101 RIVA_FIFO_FREE(Bitmap, 2);
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102 Bitmap->UnclippedRectangle[0].TopLeft = (dstX << 16) | dstY;
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103 Bitmap->UnclippedRectangle[0].WidthHeight = (dstW << 16) | dstH;
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104
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105 FB_AddBusySurface(dst);
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106
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107 if (dst == this->screen) {
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108 SDL_mutexV(hw_lock);
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109 }
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110 return (0);
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111 }
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112
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113 static int
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114 HWAccelBlit(SDL_Surface * src, SDL_Rect * srcrect,
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115 SDL_Surface * dst, SDL_Rect * dstrect)
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116 {
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117 SDL_VideoDevice *this = current_video;
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118 int srcX, srcY;
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119 int dstX, dstY;
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120 int dstW, dstH;
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121 RivaScreenBlt *Blt = (RivaScreenBlt *) (mapped_io + BLT_OFFSET);
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122
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123 /* FIXME: For now, only blit to display surface */
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124 if (dst->pitch != SDL_VideoSurface->pitch) {
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125 return (src->map->sw_blit(src, srcrect, dst, dstrect));
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126 }
133
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127
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128 /* Don't blit to the display surface when switched away */
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129 if (switched_away) {
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130 return -2; /* no hardware access */
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131 }
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132 if (dst == this->screen) {
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133 SDL_mutexP(hw_lock);
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134 }
133
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135
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136 /* Calculate source and destination base coordinates (in pixels) */
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137 dstW = dstrect->w;
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138 dstH = dstrect->h;
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139 FB_dst_to_xy(this, src, &srcX, &srcY);
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140 FB_dst_to_xy(this, dst, &dstX, &dstY);
133
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141
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142 /* Adjust for the current blit rectangles */
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143 srcX += srcrect->x;
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144 srcY += srcrect->y;
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145 dstX += dstrect->x;
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146 dstY += dstrect->y;
133
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147
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148 RIVA_FIFO_FREE(Blt, 3);
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149 Blt->TopLeftSrc = (srcY << 16) | srcX;
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150 Blt->TopLeftDst = (dstY << 16) | dstX;
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151 Blt->WidthHeight = (dstH << 16) | dstW;
133
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152
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153 FB_AddBusySurface(src);
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154 FB_AddBusySurface(dst);
133
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155
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156 if (dst == this->screen) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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157 SDL_mutexV(hw_lock);
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158 }
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159 return (0);
133
5d4bafca35cd Added support for hardware accelerated NVidia driver on framebuffer console
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160 }
5d4bafca35cd Added support for hardware accelerated NVidia driver on framebuffer console
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161
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162 static int
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163 CheckHWBlit(_THIS, SDL_Surface * src, SDL_Surface * dst)
133
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164 {
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165 int accelerated;
133
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166
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167 /* Set initial acceleration on */
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168 src->flags |= SDL_HWACCEL;
133
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diff changeset
169
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170 /* Set the surface attributes */
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171 if ((src->flags & SDL_SRCALPHA) == SDL_SRCALPHA) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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172 if (!this->info.blit_hw_A) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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173 src->flags &= ~SDL_HWACCEL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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174 }
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175 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
176 if ((src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
177 if (!this->info.blit_hw_CC) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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178 src->flags &= ~SDL_HWACCEL;
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179 }
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180 }
133
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181
1895
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182 /* Check to see if final surface blit is accelerated */
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183 accelerated = !!(src->flags & SDL_HWACCEL);
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184 if (accelerated) {
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185 src->map->hw_blit = HWAccelBlit;
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186 }
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diff changeset
187 return (accelerated);
133
5d4bafca35cd Added support for hardware accelerated NVidia driver on framebuffer console
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188 }
5d4bafca35cd Added support for hardware accelerated NVidia driver on framebuffer console
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189
1895
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diff changeset
190 void
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191 FB_RivaAccel(_THIS, __u32 card)
133
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192 {
1895
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193 RivaRop *Rop = (RivaRop *) (mapped_io + ROP_OFFSET);
133
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diff changeset
194
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195 /* We have hardware accelerated surface functions */
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196 this->CheckHWBlit = CheckHWBlit;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
197 wait_vbl = WaitVBL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
198 switch (card) {
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diff changeset
199 case FB_ACCEL_NV3:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
200 wait_idle = NV3WaitIdle;
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diff changeset
201 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
202 case FB_ACCEL_NV4:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
203 wait_idle = NV4WaitIdle;
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diff changeset
204 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
205 default:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
206 /* Hmm... FIXME */
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diff changeset
207 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
208 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
209 FifoEmptyCount = Rop->FifoFree;
133
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diff changeset
210
1895
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diff changeset
211 /* The Riva has an accelerated color fill */
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diff changeset
212 this->info.blit_fill = 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
213 this->FillHWRect = FillHWRect;
133
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parents:
diff changeset
214
1895
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diff changeset
215 /* The Riva has accelerated normal and colorkey blits. */
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diff changeset
216 this->info.blit_hw = 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
217 #if 0 /* Not yet implemented? */
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diff changeset
218 this->info.blit_hw_CC = 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
219 this->SetHWColorKey = SetHWColorKey;
133
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parents:
diff changeset
220 #endif
5d4bafca35cd Added support for hardware accelerated NVidia driver on framebuffer console
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diff changeset
221
1895
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diff changeset
222 #if 0 /* Not yet implemented? */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
223 /* The Riva has an accelerated alpha blit */
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parents: 1780
diff changeset
224 this->info.blit_hw_A = 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
225 this->SetHWAlpha = SetHWAlpha;
133
5d4bafca35cd Added support for hardware accelerated NVidia driver on framebuffer console
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
226 #endif
5d4bafca35cd Added support for hardware accelerated NVidia driver on framebuffer console
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diff changeset
227 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
228
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
229 /* vi: set ts=4 sw=4 expandtab: */