annotate src/video/fbcon/SDL_fbmatrox.c @ 769:b8d311d90021

Updated copyright information for 2004 (Happy New Year!)
author Sam Lantinga <slouken@libsdl.org>
date Sun, 04 Jan 2004 16:49:27 +0000
parents f6ffac90895c
children c9b51268668f
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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
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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_fbmatrox.h"
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32 #include "matrox_mmio.h"
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33
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34
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35 /* Wait for vertical retrace - taken from the XFree86 Matrox driver */
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36 static void WaitVBL(_THIS)
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37 {
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38 int count;
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39
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40 /* find start of retrace */
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41 mga_waitidle();
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42 while ( (mga_in8(0x1FDA) & 0x08) )
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43 ;
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44 while ( !(mga_in8(0x1FDA) & 0x08) )
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45 ;
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46 /* wait until we're past the start */
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47 count = mga_in32(0x1E20) + 2;
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48 while ( mga_in32(0x1E20) < count )
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49 ;
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50 }
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51 static void WaitIdle(_THIS)
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52 {
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53 mga_waitidle();
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54 }
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55
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56 /* Sets video mem colorkey and accelerated blit function */
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57 static int SetHWColorKey(_THIS, SDL_Surface *surface, Uint32 key)
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58 {
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59 return(0);
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60 }
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61
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62 /* Sets per surface hardware alpha value */
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63 #if 0
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64 static int SetHWAlpha(_THIS, SDL_Surface *surface, Uint8 value)
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65 {
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66 return(0);
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67 }
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68 #endif
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69
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70 static int FillHWRect(_THIS, SDL_Surface *dst, SDL_Rect *rect, Uint32 color)
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71 {
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72 int dstX, dstY;
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73 Uint32 fxbndry;
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74 Uint32 ydstlen;
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75 Uint32 fillop;
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76
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77 /* Don't blit to the display surface when switched away */
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78 if ( dst == this->screen ) {
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79 SDL_mutexP(hw_lock);
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80 }
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81
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82 switch (dst->format->BytesPerPixel) {
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83 case 1:
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84 color |= (color<<8);
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85 case 2:
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86 color |= (color<<16);
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87 break;
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88 }
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89
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90 /* Set up the X/Y base coordinates */
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91 FB_dst_to_xy(this, dst, &dstX, &dstY);
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92
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93 /* Adjust for the current rectangle */
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94 dstX += rect->x;
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95 dstY += rect->y;
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96
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97 /* Set up the X boundaries */
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98 fxbndry = (dstX | ((dstX+rect->w) << 16));
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99
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100 /* Set up the Y boundaries */
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101 ydstlen = (rect->h | (dstY << 16));
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102
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103 /* Set up for color fill operation */
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104 fillop = MGADWG_TRAP | MGADWG_SOLID |
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105 MGADWG_ARZERO | MGADWG_SGNZERO | MGADWG_SHIFTZERO;
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106
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107 /* Execute the operations! */
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108 mga_wait(5);
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109 mga_out32(MGAREG_DWGCTL, fillop | MGADWG_REPLACE);
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110 mga_out32(MGAREG_FCOL, color);
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111 mga_out32(MGAREG_FXBNDRY, fxbndry);
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112 mga_out32(MGAREG_YDSTLEN + MGAREG_EXEC, ydstlen);
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113
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114 FB_AddBusySurface(dst);
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115
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116 if ( dst == this->screen ) {
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117 SDL_mutexV(hw_lock);
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118 }
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119 return(0);
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120 }
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121
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122 static int HWAccelBlit(SDL_Surface *src, SDL_Rect *srcrect,
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123 SDL_Surface *dst, SDL_Rect *dstrect)
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124 {
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125 SDL_VideoDevice *this = current_video;
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126 int pitch, w, h;
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127 int srcX, srcY;
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128 int dstX, dstY;
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129 Uint32 sign;
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130 Uint32 start, stop;
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131 int skip;
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132 Uint32 blitop;
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133
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134 /* FIXME: For now, only blit to display surface */
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135 if ( dst->pitch != SDL_VideoSurface->pitch ) {
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136 return(src->map->sw_blit(src, srcrect, dst, dstrect));
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137 }
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138
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139 /* Don't blit to the display surface when switched away */
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140 if ( dst == this->screen ) {
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141 SDL_mutexP(hw_lock);
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142 }
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143
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144 /* Calculate source and destination base coordinates (in pixels) */
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145 w = dstrect->w;
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146 h = dstrect->h;
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147 FB_dst_to_xy(this, src, &srcX, &srcY);
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148 FB_dst_to_xy(this, dst, &dstX, &dstY);
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149
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150 /* Adjust for the current blit rectangles */
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151 srcX += srcrect->x;
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152 srcY += srcrect->y;
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153 dstX += dstrect->x;
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154 dstY += dstrect->y;
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155 pitch = dst->pitch/dst->format->BytesPerPixel;
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156
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157 /* Set up the blit direction (sign) flags */
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158 sign = 0;
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159 if ( srcX < dstX ) {
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160 sign |= 1;
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161 }
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162 if ( srcY < dstY ) {
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163 sign |= 4;
106
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164 srcY += (h - 1);
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165 dstY += (h - 1);
0
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166 }
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167
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168 /* Set up the blit source row start, end, and skip (in pixels) */
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169 stop = start = (srcY * pitch) + srcX;
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170 if ( srcX < dstX ) {
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171 start += (w - 1);
0
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172 } else {
106
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173 stop += (w - 1);
0
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174 }
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175 if ( srcY < dstY ) {
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176 skip = -pitch;
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177 } else {
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178 skip = pitch;
0
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179 }
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180
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181 /* Set up the blit operation */
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182 if ( (src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY ) {
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183 Uint32 colorkey;
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184
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185 blitop = MGADWG_BFCOL | MGADWG_BITBLT |
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186 MGADWG_SHIFTZERO | MGADWG_RSTR | (0x0C << 16) |
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187 MGADWG_TRANSC;
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188
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189 colorkey = src->format->colorkey;
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190 switch (dst->format->BytesPerPixel) {
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191 case 1:
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192 colorkey |= (colorkey<<8);
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193 case 2:
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194 colorkey |= (colorkey<<16);
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195 break;
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196 }
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197 mga_wait(2);
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198 mga_out32(MGAREG_FCOL, colorkey);
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199 mga_out32(MGAREG_BCOL, 0xFFFFFFFF);
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200 } else {
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201 blitop = MGADWG_BFCOL | MGADWG_BITBLT |
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202 MGADWG_SHIFTZERO | MGADWG_RSTR | (0x0C << 16);
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203 }
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204 mga_wait(7);
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205 mga_out32(MGAREG_SGN, sign);
106
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206 mga_out32(MGAREG_AR3, start);
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207 mga_out32(MGAREG_AR0, stop);
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208 mga_out32(MGAREG_AR5, skip);
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209 mga_out32(MGAREG_FXBNDRY, (dstX | ((dstX + w-1) << 16)));
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210 mga_out32(MGAREG_YDSTLEN, (dstY << 16) | h);
0
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211 mga_out32(MGAREG_DWGCTL + MGAREG_EXEC, blitop);
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212
106
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213 FB_AddBusySurface(src);
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214 FB_AddBusySurface(dst);
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215
109
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216 if ( dst == this->screen ) {
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217 SDL_mutexV(hw_lock);
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218 }
0
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219 return(0);
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220 }
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221
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222 static int CheckHWBlit(_THIS, SDL_Surface *src, SDL_Surface *dst)
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223 {
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224 int accelerated;
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225
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226 /* Set initial acceleration on */
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227 src->flags |= SDL_HWACCEL;
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228
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229 /* Set the surface attributes */
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230 if ( (src->flags & SDL_SRCALPHA) == SDL_SRCALPHA ) {
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231 if ( ! this->info.blit_hw_A ) {
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232 src->flags &= ~SDL_HWACCEL;
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233 }
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234 }
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235 if ( (src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY ) {
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236 if ( ! this->info.blit_hw_CC ) {
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237 src->flags &= ~SDL_HWACCEL;
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238 }
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239 }
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240
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241 /* Check to see if final surface blit is accelerated */
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242 accelerated = !!(src->flags & SDL_HWACCEL);
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243 if ( accelerated ) {
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244 src->map->hw_blit = HWAccelBlit;
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245 }
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246 return(accelerated);
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247 }
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248
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249 void FB_MatroxAccel(_THIS, __u32 card)
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250 {
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251 /* We have hardware accelerated surface functions */
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252 this->CheckHWBlit = CheckHWBlit;
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253 wait_vbl = WaitVBL;
106
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diff changeset
254 wait_idle = WaitIdle;
0
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diff changeset
255
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diff changeset
256 /* The Matrox has an accelerated color fill */
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diff changeset
257 this->info.blit_fill = 1;
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diff changeset
258 this->FillHWRect = FillHWRect;
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diff changeset
259
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260 /* The Matrox has accelerated normal and colorkey blits. */
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261 this->info.blit_hw = 1;
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diff changeset
262 /* The Millenium I appears to do the colorkey test a word
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diff changeset
263 at a time, and the transparency is intverted. (?)
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diff changeset
264 */
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diff changeset
265 if ( card != FB_ACCEL_MATROX_MGA2064W ) {
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diff changeset
266 this->info.blit_hw_CC = 1;
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diff changeset
267 this->SetHWColorKey = SetHWColorKey;
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diff changeset
268 }
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diff changeset
269
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diff changeset
270 #if 0 /* Not yet implemented? */
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diff changeset
271 /* The Matrox G200/G400 has an accelerated alpha blit */
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diff changeset
272 if ( (card == FB_ACCEL_MATROX_MGAG200)
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diff changeset
273 || (card == FB_ACCEL_MATROX_MGAG400)
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diff changeset
274 ) {
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275 this->info.blit_hw_A = 1;
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diff changeset
276 this->SetHWAlpha = SetHWAlpha;
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diff changeset
277 }
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diff changeset
278 #endif
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diff changeset
279 }