annotate src/video/fbcon/SDL_fbmatrox.c @ 1659:14717b52abc0 SDL-1.3

Merge trunk-1.3-3
author Sam Lantinga <slouken@libsdl.org>
date Wed, 17 May 2006 08:18:28 +0000
parents d910939febfa
children 782fd950bd46 c121d94672cb a1b03ba2fcd0
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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 #include "SDL_video.h"
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25 #include "../SDL_blit.h"
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26 #include "SDL_fbmatrox.h"
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27 #include "matrox_mmio.h"
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28
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29
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30 /* Wait for vertical retrace - taken from the XFree86 Matrox driver */
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31 static void WaitVBL(_THIS)
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32 {
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33 int count;
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34
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35 /* find start of retrace */
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36 mga_waitidle();
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37 while ( (mga_in8(0x1FDA) & 0x08) )
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38 ;
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39 while ( !(mga_in8(0x1FDA) & 0x08) )
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40 ;
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41 /* wait until we're past the start */
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42 count = mga_in32(0x1E20) + 2;
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43 while ( mga_in32(0x1E20) < count )
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44 ;
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45 }
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46 static void WaitIdle(_THIS)
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47 {
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48 mga_waitidle();
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49 }
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50
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51 /* Sets video mem colorkey and accelerated blit function */
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52 static int SetHWColorKey(_THIS, SDL_Surface *surface, Uint32 key)
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53 {
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54 return(0);
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55 }
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56
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57 /* Sets per surface hardware alpha value */
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58 #if 0
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59 static int SetHWAlpha(_THIS, SDL_Surface *surface, Uint8 value)
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60 {
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61 return(0);
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62 }
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63 #endif
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64
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65 static int FillHWRect(_THIS, SDL_Surface *dst, SDL_Rect *rect, Uint32 color)
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66 {
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67 int dstX, dstY;
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68 Uint32 fxbndry;
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69 Uint32 ydstlen;
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70 Uint32 fillop;
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71
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72 /* Don't blit to the display surface when switched away */
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73 if ( switched_away ) {
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74 return -2; /* no hardware access */
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75 }
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76 if ( dst == this->screen ) {
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77 SDL_mutexP(hw_lock);
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78 }
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79
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80 switch (dst->format->BytesPerPixel) {
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81 case 1:
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82 color |= (color<<8);
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83 case 2:
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84 color |= (color<<16);
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85 break;
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86 }
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87
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88 /* Set up the X/Y base coordinates */
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89 FB_dst_to_xy(this, dst, &dstX, &dstY);
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90
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91 /* Adjust for the current rectangle */
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92 dstX += rect->x;
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93 dstY += rect->y;
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94
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95 /* Set up the X boundaries */
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96 fxbndry = (dstX | ((dstX+rect->w) << 16));
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97
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98 /* Set up the Y boundaries */
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99 ydstlen = (rect->h | (dstY << 16));
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100
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101 /* Set up for color fill operation */
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102 fillop = MGADWG_TRAP | MGADWG_SOLID |
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103 MGADWG_ARZERO | MGADWG_SGNZERO | MGADWG_SHIFTZERO;
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104
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105 /* Execute the operations! */
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106 mga_wait(5);
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107 mga_out32(MGAREG_DWGCTL, fillop | MGADWG_REPLACE);
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108 mga_out32(MGAREG_FCOL, color);
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109 mga_out32(MGAREG_FXBNDRY, fxbndry);
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110 mga_out32(MGAREG_YDSTLEN + MGAREG_EXEC, ydstlen);
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111
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112 FB_AddBusySurface(dst);
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113
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114 if ( dst == this->screen ) {
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115 SDL_mutexV(hw_lock);
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116 }
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117 return(0);
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118 }
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119
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120 static int HWAccelBlit(SDL_Surface *src, SDL_Rect *srcrect,
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121 SDL_Surface *dst, SDL_Rect *dstrect)
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122 {
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123 SDL_VideoDevice *this = current_video;
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124 int pitch, w, h;
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125 int srcX, srcY;
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126 int dstX, dstY;
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127 Uint32 sign;
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128 Uint32 start, stop;
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129 int skip;
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130 Uint32 blitop;
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131
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132 /* FIXME: For now, only blit to display surface */
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133 if ( dst->pitch != SDL_VideoSurface->pitch ) {
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134 return(src->map->sw_blit(src, srcrect, dst, dstrect));
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135 }
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136
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137 /* Don't blit to the display surface when switched away */
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138 if ( switched_away ) {
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139 return -2; /* no hardware access */
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140 }
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141 if ( dst == this->screen ) {
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142 SDL_mutexP(hw_lock);
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143 }
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144
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145 /* Calculate source and destination base coordinates (in pixels) */
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146 w = dstrect->w;
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147 h = dstrect->h;
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148 FB_dst_to_xy(this, src, &srcX, &srcY);
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149 FB_dst_to_xy(this, dst, &dstX, &dstY);
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150
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151 /* Adjust for the current blit rectangles */
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152 srcX += srcrect->x;
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153 srcY += srcrect->y;
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154 dstX += dstrect->x;
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155 dstY += dstrect->y;
106
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156 pitch = dst->pitch/dst->format->BytesPerPixel;
0
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157
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158 /* Set up the blit direction (sign) flags */
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159 sign = 0;
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160 if ( srcX < dstX ) {
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161 sign |= 1;
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162 }
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163 if ( srcY < dstY ) {
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164 sign |= 4;
106
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165 srcY += (h - 1);
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166 dstY += (h - 1);
0
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167 }
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168
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169 /* Set up the blit source row start, end, and skip (in pixels) */
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170 stop = start = (srcY * pitch) + srcX;
0
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171 if ( srcX < dstX ) {
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172 start += (w - 1);
0
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173 } else {
106
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174 stop += (w - 1);
0
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175 }
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176 if ( srcY < dstY ) {
106
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177 skip = -pitch;
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178 } else {
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179 skip = pitch;
0
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180 }
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181
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182 /* Set up the blit operation */
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183 if ( (src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY ) {
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184 Uint32 colorkey;
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185
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186 blitop = MGADWG_BFCOL | MGADWG_BITBLT |
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187 MGADWG_SHIFTZERO | MGADWG_RSTR | (0x0C << 16) |
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188 MGADWG_TRANSC;
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189
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190 colorkey = src->format->colorkey;
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191 switch (dst->format->BytesPerPixel) {
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192 case 1:
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193 colorkey |= (colorkey<<8);
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194 case 2:
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195 colorkey |= (colorkey<<16);
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196 break;
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197 }
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198 mga_wait(2);
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199 mga_out32(MGAREG_FCOL, colorkey);
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200 mga_out32(MGAREG_BCOL, 0xFFFFFFFF);
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201 } else {
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202 blitop = MGADWG_BFCOL | MGADWG_BITBLT |
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203 MGADWG_SHIFTZERO | MGADWG_RSTR | (0x0C << 16);
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204 }
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205 mga_wait(7);
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206 mga_out32(MGAREG_SGN, sign);
106
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207 mga_out32(MGAREG_AR3, start);
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208 mga_out32(MGAREG_AR0, stop);
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209 mga_out32(MGAREG_AR5, skip);
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210 mga_out32(MGAREG_FXBNDRY, (dstX | ((dstX + w-1) << 16)));
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211 mga_out32(MGAREG_YDSTLEN, (dstY << 16) | h);
0
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212 mga_out32(MGAREG_DWGCTL + MGAREG_EXEC, blitop);
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213
106
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214 FB_AddBusySurface(src);
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215 FB_AddBusySurface(dst);
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diff changeset
216
109
5a9c36a45db1 Fixed switching away from the SDL at the framebuffer console
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217 if ( dst == this->screen ) {
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218 SDL_mutexV(hw_lock);
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diff changeset
219 }
0
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220 return(0);
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221 }
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222
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223 static int CheckHWBlit(_THIS, SDL_Surface *src, SDL_Surface *dst)
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224 {
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225 int accelerated;
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226
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227 /* Set initial acceleration on */
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228 src->flags |= SDL_HWACCEL;
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229
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230 /* Set the surface attributes */
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231 if ( (src->flags & SDL_SRCALPHA) == SDL_SRCALPHA ) {
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232 if ( ! this->info.blit_hw_A ) {
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233 src->flags &= ~SDL_HWACCEL;
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234 }
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235 }
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diff changeset
236 if ( (src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY ) {
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diff changeset
237 if ( ! this->info.blit_hw_CC ) {
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diff changeset
238 src->flags &= ~SDL_HWACCEL;
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239 }
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240 }
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diff changeset
241
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diff changeset
242 /* Check to see if final surface blit is accelerated */
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diff changeset
243 accelerated = !!(src->flags & SDL_HWACCEL);
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diff changeset
244 if ( accelerated ) {
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diff changeset
245 src->map->hw_blit = HWAccelBlit;
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diff changeset
246 }
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diff changeset
247 return(accelerated);
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diff changeset
248 }
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diff changeset
249
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diff changeset
250 void FB_MatroxAccel(_THIS, __u32 card)
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diff changeset
251 {
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diff changeset
252 /* We have hardware accelerated surface functions */
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diff changeset
253 this->CheckHWBlit = CheckHWBlit;
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diff changeset
254 wait_vbl = WaitVBL;
106
63ec24e0575f Merged DGA video surface handling improvements, unified locking code.
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diff changeset
255 wait_idle = WaitIdle;
0
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diff changeset
256
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diff changeset
257 /* The Matrox has an accelerated color fill */
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diff changeset
258 this->info.blit_fill = 1;
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diff changeset
259 this->FillHWRect = FillHWRect;
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diff changeset
260
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diff changeset
261 /* The Matrox has accelerated normal and colorkey blits. */
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diff changeset
262 this->info.blit_hw = 1;
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diff changeset
263 /* The Millenium I appears to do the colorkey test a word
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parents:
diff changeset
264 at a time, and the transparency is intverted. (?)
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diff changeset
265 */
74212992fb08 Initial revision
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parents:
diff changeset
266 if ( card != FB_ACCEL_MATROX_MGA2064W ) {
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diff changeset
267 this->info.blit_hw_CC = 1;
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diff changeset
268 this->SetHWColorKey = SetHWColorKey;
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parents:
diff changeset
269 }
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parents:
diff changeset
270
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parents:
diff changeset
271 #if 0 /* Not yet implemented? */
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parents:
diff changeset
272 /* The Matrox G200/G400 has an accelerated alpha blit */
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parents:
diff changeset
273 if ( (card == FB_ACCEL_MATROX_MGAG200)
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parents:
diff changeset
274 || (card == FB_ACCEL_MATROX_MGAG400)
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parents:
diff changeset
275 ) {
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diff changeset
276 this->info.blit_hw_A = 1;
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diff changeset
277 this->SetHWAlpha = SetHWAlpha;
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parents:
diff changeset
278 }
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parents:
diff changeset
279 #endif
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diff changeset
280 }