Mercurial > sdl-ios-xcode
annotate src/video/fbcon/SDL_fbmatrox.c @ 830:58b074c1bc59
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| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Mon, 16 Feb 2004 00:03:31 +0000 |
| parents | b8d311d90021 |
| children | c9b51268668f |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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3 Copyright (C) 1997-2004 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
| 6 modify it under the terms of the GNU Library General Public | |
| 7 License as published by the Free Software Foundation; either | |
| 8 version 2 of the License, or (at your option) any later version. | |
| 9 | |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 Library General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU Library General Public | |
| 16 License along with this library; if not, write to the Free | |
| 17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 18 | |
| 19 Sam Lantinga | |
|
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20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 #ifdef SAVE_RCSID | |
| 24 static char rcsid = | |
| 25 "@(#) $Id$"; | |
| 26 #endif | |
| 27 | |
| 28 #include "SDL_types.h" | |
| 29 #include "SDL_video.h" | |
| 30 #include "SDL_blit.h" | |
| 31 #include "SDL_fbmatrox.h" | |
| 32 #include "matrox_mmio.h" | |
| 33 | |
| 34 | |
| 35 /* Wait for vertical retrace - taken from the XFree86 Matrox driver */ | |
| 36 static void WaitVBL(_THIS) | |
| 37 { | |
| 38 int count; | |
| 39 | |
| 40 /* find start of retrace */ | |
| 41 mga_waitidle(); | |
| 42 while ( (mga_in8(0x1FDA) & 0x08) ) | |
| 43 ; | |
| 44 while ( !(mga_in8(0x1FDA) & 0x08) ) | |
| 45 ; | |
| 46 /* wait until we're past the start */ | |
| 47 count = mga_in32(0x1E20) + 2; | |
| 48 while ( mga_in32(0x1E20) < count ) | |
| 49 ; | |
| 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 } |
| 0 | 55 |
| 56 /* Sets video mem colorkey and accelerated blit function */ | |
| 57 static int SetHWColorKey(_THIS, SDL_Surface *surface, Uint32 key) | |
| 58 { | |
| 59 return(0); | |
| 60 } | |
| 61 | |
| 62 /* Sets per surface hardware alpha value */ | |
| 20 | 63 #if 0 |
| 0 | 64 static int SetHWAlpha(_THIS, SDL_Surface *surface, Uint8 value) |
| 65 { | |
| 66 return(0); | |
| 67 } | |
| 20 | 68 #endif |
| 0 | 69 |
| 70 static int FillHWRect(_THIS, SDL_Surface *dst, SDL_Rect *rect, Uint32 color) | |
| 71 { | |
| 72 int dstX, dstY; | |
| 73 Uint32 fxbndry; | |
| 74 Uint32 ydstlen; | |
| 75 Uint32 fillop; | |
| 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 |
| 0 | 82 switch (dst->format->BytesPerPixel) { |
| 83 case 1: | |
| 84 color |= (color<<8); | |
| 85 case 2: | |
| 86 color |= (color<<16); | |
| 87 break; | |
| 88 } | |
| 89 | |
| 90 /* Set up the X/Y base coordinates */ | |
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91 FB_dst_to_xy(this, dst, &dstX, &dstY); |
| 0 | 92 |
| 93 /* Adjust for the current rectangle */ | |
| 94 dstX += rect->x; | |
| 95 dstY += rect->y; | |
| 96 | |
| 97 /* Set up the X boundaries */ | |
| 98 fxbndry = (dstX | ((dstX+rect->w) << 16)); | |
| 99 | |
| 100 /* Set up the Y boundaries */ | |
| 101 ydstlen = (rect->h | (dstY << 16)); | |
| 102 | |
| 103 /* Set up for color fill operation */ | |
| 104 fillop = MGADWG_TRAP | MGADWG_SOLID | | |
| 105 MGADWG_ARZERO | MGADWG_SGNZERO | MGADWG_SHIFTZERO; | |
| 106 | |
| 107 /* Execute the operations! */ | |
| 108 mga_wait(5); | |
| 109 mga_out32(MGAREG_DWGCTL, fillop | MGADWG_REPLACE); | |
| 110 mga_out32(MGAREG_FCOL, color); | |
| 111 mga_out32(MGAREG_FXBNDRY, fxbndry); | |
| 112 mga_out32(MGAREG_YDSTLEN + MGAREG_EXEC, ydstlen); | |
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113 |
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114 FB_AddBusySurface(dst); |
| 0 | 115 |
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116 if ( dst == this->screen ) { |
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117 SDL_mutexV(hw_lock); |
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118 } |
| 0 | 119 return(0); |
| 120 } | |
| 121 | |
| 122 static int HWAccelBlit(SDL_Surface *src, SDL_Rect *srcrect, | |
| 123 SDL_Surface *dst, SDL_Rect *dstrect) | |
| 124 { | |
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125 SDL_VideoDevice *this = current_video; |
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126 int pitch, w, h; |
| 0 | 127 int srcX, srcY; |
| 128 int dstX, dstY; | |
| 129 Uint32 sign; | |
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130 Uint32 start, stop; |
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131 int skip; |
| 0 | 132 Uint32 blitop; |
| 133 | |
| 134 /* FIXME: For now, only blit to display surface */ | |
| 135 if ( dst->pitch != SDL_VideoSurface->pitch ) { | |
| 136 return(src->map->sw_blit(src, srcrect, dst, dstrect)); | |
| 137 } | |
| 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 |
| 0 | 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); |
| 0 | 149 |
| 150 /* Adjust for the current blit rectangles */ | |
| 151 srcX += srcrect->x; | |
| 152 srcY += srcrect->y; | |
| 153 dstX += dstrect->x; | |
| 154 dstY += dstrect->y; | |
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155 pitch = dst->pitch/dst->format->BytesPerPixel; |
| 0 | 156 |
| 157 /* Set up the blit direction (sign) flags */ | |
| 158 sign = 0; | |
| 159 if ( srcX < dstX ) { | |
| 160 sign |= 1; | |
| 161 } | |
| 162 if ( srcY < dstY ) { | |
| 163 sign |= 4; | |
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164 srcY += (h - 1); |
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165 dstY += (h - 1); |
| 0 | 166 } |
| 167 | |
| 168 /* Set up the blit source row start, end, and skip (in pixels) */ | |
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169 stop = start = (srcY * pitch) + srcX; |
| 0 | 170 if ( srcX < dstX ) { |
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171 start += (w - 1); |
| 0 | 172 } else { |
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173 stop += (w - 1); |
| 0 | 174 } |
| 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 | 179 } |
| 180 | |
| 181 /* Set up the blit operation */ | |
| 182 if ( (src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY ) { | |
| 183 Uint32 colorkey; | |
| 184 | |
| 185 blitop = MGADWG_BFCOL | MGADWG_BITBLT | | |
| 186 MGADWG_SHIFTZERO | MGADWG_RSTR | (0x0C << 16) | | |
| 187 MGADWG_TRANSC; | |
| 188 | |
| 189 colorkey = src->format->colorkey; | |
| 190 switch (dst->format->BytesPerPixel) { | |
| 191 case 1: | |
| 192 colorkey |= (colorkey<<8); | |
| 193 case 2: | |
| 194 colorkey |= (colorkey<<16); | |
| 195 break; | |
| 196 } | |
| 197 mga_wait(2); | |
| 198 mga_out32(MGAREG_FCOL, colorkey); | |
| 199 mga_out32(MGAREG_BCOL, 0xFFFFFFFF); | |
| 200 } else { | |
| 201 blitop = MGADWG_BFCOL | MGADWG_BITBLT | | |
| 202 MGADWG_SHIFTZERO | MGADWG_RSTR | (0x0C << 16); | |
| 203 } | |
| 204 mga_wait(7); | |
| 205 mga_out32(MGAREG_SGN, sign); | |
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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 | 211 mga_out32(MGAREG_DWGCTL + MGAREG_EXEC, blitop); |
| 212 | |
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213 FB_AddBusySurface(src); |
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214 FB_AddBusySurface(dst); |
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215 |
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216 if ( dst == this->screen ) { |
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217 SDL_mutexV(hw_lock); |
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218 } |
| 0 | 219 return(0); |
| 220 } | |
| 221 | |
| 222 static int CheckHWBlit(_THIS, SDL_Surface *src, SDL_Surface *dst) | |
| 223 { | |
| 224 int accelerated; | |
| 225 | |
| 226 /* Set initial acceleration on */ | |
| 227 src->flags |= SDL_HWACCEL; | |
| 228 | |
| 229 /* Set the surface attributes */ | |
| 230 if ( (src->flags & SDL_SRCALPHA) == SDL_SRCALPHA ) { | |
| 231 if ( ! this->info.blit_hw_A ) { | |
| 232 src->flags &= ~SDL_HWACCEL; | |
| 233 } | |
| 234 } | |
| 235 if ( (src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY ) { | |
| 236 if ( ! this->info.blit_hw_CC ) { | |
| 237 src->flags &= ~SDL_HWACCEL; | |
| 238 } | |
| 239 } | |
| 240 | |
| 241 /* Check to see if final surface blit is accelerated */ | |
| 242 accelerated = !!(src->flags & SDL_HWACCEL); | |
| 243 if ( accelerated ) { | |
| 244 src->map->hw_blit = HWAccelBlit; | |
| 245 } | |
| 246 return(accelerated); | |
| 247 } | |
| 248 | |
| 249 void FB_MatroxAccel(_THIS, __u32 card) | |
| 250 { | |
| 251 /* We have hardware accelerated surface functions */ | |
| 252 this->CheckHWBlit = CheckHWBlit; | |
| 253 wait_vbl = WaitVBL; | |
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254 wait_idle = WaitIdle; |
| 0 | 255 |
| 256 /* The Matrox has an accelerated color fill */ | |
| 257 this->info.blit_fill = 1; | |
| 258 this->FillHWRect = FillHWRect; | |
| 259 | |
| 260 /* The Matrox has accelerated normal and colorkey blits. */ | |
| 261 this->info.blit_hw = 1; | |
| 262 /* The Millenium I appears to do the colorkey test a word | |
| 263 at a time, and the transparency is intverted. (?) | |
| 264 */ | |
| 265 if ( card != FB_ACCEL_MATROX_MGA2064W ) { | |
| 266 this->info.blit_hw_CC = 1; | |
| 267 this->SetHWColorKey = SetHWColorKey; | |
| 268 } | |
| 269 | |
| 270 #if 0 /* Not yet implemented? */ | |
| 271 /* The Matrox G200/G400 has an accelerated alpha blit */ | |
| 272 if ( (card == FB_ACCEL_MATROX_MGAG200) | |
| 273 || (card == FB_ACCEL_MATROX_MGAG400) | |
| 274 ) { | |
| 275 this->info.blit_hw_A = 1; | |
| 276 this->SetHWAlpha = SetHWAlpha; | |
| 277 } | |
| 278 #endif | |
| 279 } |