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annotate src/video/fbcon/SDL_fbriva.c @ 889:eac8c69b5706

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ate: Fri, 09 Apr 2004 20:07:10 +0200 From: Hibernatus Subject: [SDL] BUG: changing video mode in opengl + windows In WIN_GL_SetupWindow (SDL12/src/video/wincommon/SDL_wingl.c) you call WIN_GL_ResetWindow when SetPixelFormat fails. WIN_GL_ResetWindow cannot properly work in its current state, because there are several things to update once you've created a new window. At least DirectInput doesn't work anymore here (which is somewhat annoying for the player :). I think you can simply remove that function. Many games don't try to recover from that exception, that's why the newest ATI drivers emulate 16 bpp display in 32 bpp mode so the error never occurs (but the games may run much slower). Having SDL_SetVideoMode return NULL would be better than actually setting the video mode and losing focus, directinput and maybe directsound too. It also made my previous drivers crash (when switching from 32 bpp windowed to 16 bpp fullscreen).
author Sam Lantinga <slouken@libsdl.org>
date Sun, 16 May 2004 18:02:48 +0000
parents b8d311d90021
children 3d4f1930ed02
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2004 Sam Lantinga
133
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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 Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 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 Library 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 Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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
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23 #ifdef SAVE_RCSID
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24 static char rcsid =
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25 "@(#) $Id$";
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26 #endif
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27
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28 #include "SDL_types.h"
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29 #include "SDL_video.h"
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30 #include "SDL_blit.h"
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31 #include "SDL_fbriva.h"
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32 #include "riva_mmio.h"
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33 #include "riva_regs.h"
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34
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35
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36 static int FifoEmptyCount = 0;
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37 static int FifoFreeCount = 0;
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38
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39 /* Wait for vertical retrace */
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40 static void WaitVBL(_THIS)
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41 {
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42 volatile Uint8 *port = (Uint8 *)(mapped_io + PCIO_OFFSET + 0x3DA);
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43
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44 while ( (*port & 0x08) )
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45 ;
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46 while ( !(*port & 0x08) )
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47 ;
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48 }
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49 static void NV3WaitIdle(_THIS)
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50 {
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51 RivaRop *Rop = (RivaRop *)(mapped_io + ROP_OFFSET);
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52 while ( (Rop->FifoFree < FifoEmptyCount) ||
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53 (*(mapped_io + PGRAPH_OFFSET + 0x000006B0) & 0x01) )
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54 ;
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55 }
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56 static void NV4WaitIdle(_THIS)
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57 {
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58 RivaRop *Rop = (RivaRop *)(mapped_io + ROP_OFFSET);
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59 while ( (Rop->FifoFree < FifoEmptyCount) ||
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60 (*(mapped_io + PGRAPH_OFFSET + 0x00000700) & 0x01) )
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61 ;
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62 }
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63
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64 /* Sets video mem colorkey and accelerated blit function */
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65 static int SetHWColorKey(_THIS, SDL_Surface *surface, Uint32 key)
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66 {
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67 return(0);
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68 }
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69
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70 /* Sets per surface hardware alpha value */
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71 static int SetHWAlpha(_THIS, SDL_Surface *surface, Uint8 value)
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72 {
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73 return(0);
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74 }
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75
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76 static int FillHWRect(_THIS, SDL_Surface *dst, SDL_Rect *rect, Uint32 color)
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77 {
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78 int dstX, dstY;
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79 int dstW, dstH;
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80 RivaBitmap *Bitmap = (RivaBitmap *)(mapped_io + BITMAP_OFFSET);
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81
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82 /* Don't blit to the display surface when switched away */
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83 if ( dst == this->screen ) {
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84 SDL_mutexP(hw_lock);
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85 }
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86
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87 /* Set up the X/Y base coordinates */
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88 dstW = rect->w;
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89 dstH = rect->h;
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90 FB_dst_to_xy(this, dst, &dstX, &dstY);
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91
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92 /* Adjust for the current rectangle */
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93 dstX += rect->x;
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94 dstY += rect->y;
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95
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96 RIVA_FIFO_FREE(Bitmap, 1);
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97 Bitmap->Color1A = color;
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98
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99 RIVA_FIFO_FREE(Bitmap, 2);
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100 Bitmap->UnclippedRectangle[0].TopLeft = (dstX << 16) | dstY;
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101 Bitmap->UnclippedRectangle[0].WidthHeight = (dstW << 16) | dstH;
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102
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103 FB_AddBusySurface(dst);
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104
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105 if ( dst == this->screen ) {
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106 SDL_mutexV(hw_lock);
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107 }
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108 return(0);
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109 }
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110
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111 static int HWAccelBlit(SDL_Surface *src, SDL_Rect *srcrect,
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112 SDL_Surface *dst, SDL_Rect *dstrect)
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113 {
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114 SDL_VideoDevice *this = current_video;
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115 int srcX, srcY;
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116 int dstX, dstY;
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117 int dstW, dstH;
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118 RivaScreenBlt *Blt = (RivaScreenBlt *)(mapped_io + BLT_OFFSET);
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119
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120 /* FIXME: For now, only blit to display surface */
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121 if ( dst->pitch != SDL_VideoSurface->pitch ) {
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122 return(src->map->sw_blit(src, srcrect, dst, dstrect));
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123 }
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124
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125 /* Don't blit to the display surface when switched away */
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126 if ( dst == this->screen ) {
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127 SDL_mutexP(hw_lock);
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128 }
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129
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130 /* Calculate source and destination base coordinates (in pixels) */
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131 dstW = dstrect->w;
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132 dstH = dstrect->h;
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133 FB_dst_to_xy(this, src, &srcX, &srcY);
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134 FB_dst_to_xy(this, dst, &dstX, &dstY);
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135
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136 /* Adjust for the current blit rectangles */
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137 srcX += srcrect->x;
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138 srcY += srcrect->y;
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139 dstX += dstrect->x;
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140 dstY += dstrect->y;
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141
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142 RIVA_FIFO_FREE(Blt, 3);
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143 Blt->TopLeftSrc = (srcY << 16) | srcX;
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144 Blt->TopLeftDst = (dstY << 16) | dstX;
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145 Blt->WidthHeight = (dstH << 16) | dstW;
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146
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147 FB_AddBusySurface(src);
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148 FB_AddBusySurface(dst);
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149
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150 if ( dst == this->screen ) {
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151 SDL_mutexV(hw_lock);
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152 }
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153 return(0);
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154 }
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155
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156 static int CheckHWBlit(_THIS, SDL_Surface *src, SDL_Surface *dst)
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157 {
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158 int accelerated;
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159
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160 /* Set initial acceleration on */
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161 src->flags |= SDL_HWACCEL;
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162
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163 /* Set the surface attributes */
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164 if ( (src->flags & SDL_SRCALPHA) == SDL_SRCALPHA ) {
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165 if ( ! this->info.blit_hw_A ) {
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166 src->flags &= ~SDL_HWACCEL;
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167 }
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168 }
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169 if ( (src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY ) {
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170 if ( ! this->info.blit_hw_CC ) {
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171 src->flags &= ~SDL_HWACCEL;
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172 }
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173 }
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174
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175 /* Check to see if final surface blit is accelerated */
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176 accelerated = !!(src->flags & SDL_HWACCEL);
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177 if ( accelerated ) {
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178 src->map->hw_blit = HWAccelBlit;
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179 }
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180 return(accelerated);
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181 }
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182
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183 void FB_RivaAccel(_THIS, __u32 card)
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184 {
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185 RivaRop *Rop = (RivaRop *)(mapped_io + ROP_OFFSET);
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186
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187 /* We have hardware accelerated surface functions */
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188 this->CheckHWBlit = CheckHWBlit;
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189 wait_vbl = WaitVBL;
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190 switch (card) {
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191 case FB_ACCEL_NV3:
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192 wait_idle = NV3WaitIdle;
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193 break;
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194 case FB_ACCEL_NV4:
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195 wait_idle = NV4WaitIdle;
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196 break;
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197 default:
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198 /* Hmm... FIXME */
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199 break;
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200 }
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201 FifoEmptyCount = Rop->FifoFree;
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202
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203 /* The Riva has an accelerated color fill */
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204 this->info.blit_fill = 1;
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205 this->FillHWRect = FillHWRect;
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206
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207 /* The Riva has accelerated normal and colorkey blits. */
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208 this->info.blit_hw = 1;
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209 #if 0 /* Not yet implemented? */
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210 this->info.blit_hw_CC = 1;
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211 this->SetHWColorKey = SetHWColorKey;
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212 #endif
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213
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214 #if 0 /* Not yet implemented? */
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215 /* The Riva has an accelerated alpha blit */
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216 this->info.blit_hw_A = 1;
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217 this->SetHWAlpha = SetHWAlpha;
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218 #endif
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219 }