Mercurial > sdl-ios-xcode
annotate src/video/fbcon/SDL_fbmatrox.c @ 1359:1e4ba2e063b4
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| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Fri, 10 Feb 2006 07:03:22 +0000 |
| parents | c71e05b4dc2e |
| children | 19418e4422cb |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 SDL - Simple DirectMedia Layer |
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3 Copyright (C) 1997-2006 Sam Lantinga |
| 0 | 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. |
| 0 | 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. |
| 0 | 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 |
| 0 | 18 |
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19 Sam Lantinga |
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20 slouken@libsdl.org |
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21 */ |
| 0 | 22 |
| 23 #include "SDL_video.h" | |
| 24 #include "SDL_blit.h" | |
| 25 #include "SDL_fbmatrox.h" | |
| 26 #include "matrox_mmio.h" | |
| 27 | |
| 28 | |
| 29 /* Wait for vertical retrace - taken from the XFree86 Matrox driver */ | |
| 30 static void WaitVBL(_THIS) | |
| 31 { | |
| 32 int count; | |
| 33 | |
| 34 /* find start of retrace */ | |
| 35 mga_waitidle(); | |
| 36 while ( (mga_in8(0x1FDA) & 0x08) ) | |
| 37 ; | |
| 38 while ( !(mga_in8(0x1FDA) & 0x08) ) | |
| 39 ; | |
| 40 /* wait until we're past the start */ | |
| 41 count = mga_in32(0x1E20) + 2; | |
| 42 while ( mga_in32(0x1E20) < count ) | |
| 43 ; | |
| 44 } | |
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45 static void WaitIdle(_THIS) |
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46 { |
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47 mga_waitidle(); |
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48 } |
| 0 | 49 |
| 50 /* Sets video mem colorkey and accelerated blit function */ | |
| 51 static int SetHWColorKey(_THIS, SDL_Surface *surface, Uint32 key) | |
| 52 { | |
| 53 return(0); | |
| 54 } | |
| 55 | |
| 56 /* Sets per surface hardware alpha value */ | |
| 20 | 57 #if 0 |
| 0 | 58 static int SetHWAlpha(_THIS, SDL_Surface *surface, Uint8 value) |
| 59 { | |
| 60 return(0); | |
| 61 } | |
| 20 | 62 #endif |
| 0 | 63 |
| 64 static int FillHWRect(_THIS, SDL_Surface *dst, SDL_Rect *rect, Uint32 color) | |
| 65 { | |
| 66 int dstX, dstY; | |
| 67 Uint32 fxbndry; | |
| 68 Uint32 ydstlen; | |
| 69 Uint32 fillop; | |
| 70 | |
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71 /* Don't blit to the display surface when switched away */ |
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72 if ( dst == this->screen ) { |
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73 SDL_mutexP(hw_lock); |
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74 } |
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75 |
| 0 | 76 switch (dst->format->BytesPerPixel) { |
| 77 case 1: | |
| 78 color |= (color<<8); | |
| 79 case 2: | |
| 80 color |= (color<<16); | |
| 81 break; | |
| 82 } | |
| 83 | |
| 84 /* Set up the X/Y base coordinates */ | |
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85 FB_dst_to_xy(this, dst, &dstX, &dstY); |
| 0 | 86 |
| 87 /* Adjust for the current rectangle */ | |
| 88 dstX += rect->x; | |
| 89 dstY += rect->y; | |
| 90 | |
| 91 /* Set up the X boundaries */ | |
| 92 fxbndry = (dstX | ((dstX+rect->w) << 16)); | |
| 93 | |
| 94 /* Set up the Y boundaries */ | |
| 95 ydstlen = (rect->h | (dstY << 16)); | |
| 96 | |
| 97 /* Set up for color fill operation */ | |
| 98 fillop = MGADWG_TRAP | MGADWG_SOLID | | |
| 99 MGADWG_ARZERO | MGADWG_SGNZERO | MGADWG_SHIFTZERO; | |
| 100 | |
| 101 /* Execute the operations! */ | |
| 102 mga_wait(5); | |
| 103 mga_out32(MGAREG_DWGCTL, fillop | MGADWG_REPLACE); | |
| 104 mga_out32(MGAREG_FCOL, color); | |
| 105 mga_out32(MGAREG_FXBNDRY, fxbndry); | |
| 106 mga_out32(MGAREG_YDSTLEN + MGAREG_EXEC, ydstlen); | |
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107 |
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108 FB_AddBusySurface(dst); |
| 0 | 109 |
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110 if ( dst == this->screen ) { |
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111 SDL_mutexV(hw_lock); |
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112 } |
| 0 | 113 return(0); |
| 114 } | |
| 115 | |
| 116 static int HWAccelBlit(SDL_Surface *src, SDL_Rect *srcrect, | |
| 117 SDL_Surface *dst, SDL_Rect *dstrect) | |
| 118 { | |
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119 SDL_VideoDevice *this = current_video; |
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120 int pitch, w, h; |
| 0 | 121 int srcX, srcY; |
| 122 int dstX, dstY; | |
| 123 Uint32 sign; | |
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124 Uint32 start, stop; |
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125 int skip; |
| 0 | 126 Uint32 blitop; |
| 127 | |
| 128 /* FIXME: For now, only blit to display surface */ | |
| 129 if ( dst->pitch != SDL_VideoSurface->pitch ) { | |
| 130 return(src->map->sw_blit(src, srcrect, dst, dstrect)); | |
| 131 } | |
| 132 | |
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133 /* Don't blit to the display surface when switched away */ |
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134 if ( dst == this->screen ) { |
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135 SDL_mutexP(hw_lock); |
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136 } |
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137 |
| 0 | 138 /* Calculate source and destination base coordinates (in pixels) */ |
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139 w = dstrect->w; |
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140 h = dstrect->h; |
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141 FB_dst_to_xy(this, src, &srcX, &srcY); |
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142 FB_dst_to_xy(this, dst, &dstX, &dstY); |
| 0 | 143 |
| 144 /* Adjust for the current blit rectangles */ | |
| 145 srcX += srcrect->x; | |
| 146 srcY += srcrect->y; | |
| 147 dstX += dstrect->x; | |
| 148 dstY += dstrect->y; | |
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149 pitch = dst->pitch/dst->format->BytesPerPixel; |
| 0 | 150 |
| 151 /* Set up the blit direction (sign) flags */ | |
| 152 sign = 0; | |
| 153 if ( srcX < dstX ) { | |
| 154 sign |= 1; | |
| 155 } | |
| 156 if ( srcY < dstY ) { | |
| 157 sign |= 4; | |
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158 srcY += (h - 1); |
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159 dstY += (h - 1); |
| 0 | 160 } |
| 161 | |
| 162 /* Set up the blit source row start, end, and skip (in pixels) */ | |
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163 stop = start = (srcY * pitch) + srcX; |
| 0 | 164 if ( srcX < dstX ) { |
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165 start += (w - 1); |
| 0 | 166 } else { |
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167 stop += (w - 1); |
| 0 | 168 } |
| 169 if ( srcY < dstY ) { | |
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170 skip = -pitch; |
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171 } else { |
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172 skip = pitch; |
| 0 | 173 } |
| 174 | |
| 175 /* Set up the blit operation */ | |
| 176 if ( (src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY ) { | |
| 177 Uint32 colorkey; | |
| 178 | |
| 179 blitop = MGADWG_BFCOL | MGADWG_BITBLT | | |
| 180 MGADWG_SHIFTZERO | MGADWG_RSTR | (0x0C << 16) | | |
| 181 MGADWG_TRANSC; | |
| 182 | |
| 183 colorkey = src->format->colorkey; | |
| 184 switch (dst->format->BytesPerPixel) { | |
| 185 case 1: | |
| 186 colorkey |= (colorkey<<8); | |
| 187 case 2: | |
| 188 colorkey |= (colorkey<<16); | |
| 189 break; | |
| 190 } | |
| 191 mga_wait(2); | |
| 192 mga_out32(MGAREG_FCOL, colorkey); | |
| 193 mga_out32(MGAREG_BCOL, 0xFFFFFFFF); | |
| 194 } else { | |
| 195 blitop = MGADWG_BFCOL | MGADWG_BITBLT | | |
| 196 MGADWG_SHIFTZERO | MGADWG_RSTR | (0x0C << 16); | |
| 197 } | |
| 198 mga_wait(7); | |
| 199 mga_out32(MGAREG_SGN, sign); | |
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200 mga_out32(MGAREG_AR3, start); |
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201 mga_out32(MGAREG_AR0, stop); |
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202 mga_out32(MGAREG_AR5, skip); |
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203 mga_out32(MGAREG_FXBNDRY, (dstX | ((dstX + w-1) << 16))); |
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204 mga_out32(MGAREG_YDSTLEN, (dstY << 16) | h); |
| 0 | 205 mga_out32(MGAREG_DWGCTL + MGAREG_EXEC, blitop); |
| 206 | |
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207 FB_AddBusySurface(src); |
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208 FB_AddBusySurface(dst); |
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209 |
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210 if ( dst == this->screen ) { |
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211 SDL_mutexV(hw_lock); |
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212 } |
| 0 | 213 return(0); |
| 214 } | |
| 215 | |
| 216 static int CheckHWBlit(_THIS, SDL_Surface *src, SDL_Surface *dst) | |
| 217 { | |
| 218 int accelerated; | |
| 219 | |
| 220 /* Set initial acceleration on */ | |
| 221 src->flags |= SDL_HWACCEL; | |
| 222 | |
| 223 /* Set the surface attributes */ | |
| 224 if ( (src->flags & SDL_SRCALPHA) == SDL_SRCALPHA ) { | |
| 225 if ( ! this->info.blit_hw_A ) { | |
| 226 src->flags &= ~SDL_HWACCEL; | |
| 227 } | |
| 228 } | |
| 229 if ( (src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY ) { | |
| 230 if ( ! this->info.blit_hw_CC ) { | |
| 231 src->flags &= ~SDL_HWACCEL; | |
| 232 } | |
| 233 } | |
| 234 | |
| 235 /* Check to see if final surface blit is accelerated */ | |
| 236 accelerated = !!(src->flags & SDL_HWACCEL); | |
| 237 if ( accelerated ) { | |
| 238 src->map->hw_blit = HWAccelBlit; | |
| 239 } | |
| 240 return(accelerated); | |
| 241 } | |
| 242 | |
| 243 void FB_MatroxAccel(_THIS, __u32 card) | |
| 244 { | |
| 245 /* We have hardware accelerated surface functions */ | |
| 246 this->CheckHWBlit = CheckHWBlit; | |
| 247 wait_vbl = WaitVBL; | |
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248 wait_idle = WaitIdle; |
| 0 | 249 |
| 250 /* The Matrox has an accelerated color fill */ | |
| 251 this->info.blit_fill = 1; | |
| 252 this->FillHWRect = FillHWRect; | |
| 253 | |
| 254 /* The Matrox has accelerated normal and colorkey blits. */ | |
| 255 this->info.blit_hw = 1; | |
| 256 /* The Millenium I appears to do the colorkey test a word | |
| 257 at a time, and the transparency is intverted. (?) | |
| 258 */ | |
| 259 if ( card != FB_ACCEL_MATROX_MGA2064W ) { | |
| 260 this->info.blit_hw_CC = 1; | |
| 261 this->SetHWColorKey = SetHWColorKey; | |
| 262 } | |
| 263 | |
| 264 #if 0 /* Not yet implemented? */ | |
| 265 /* The Matrox G200/G400 has an accelerated alpha blit */ | |
| 266 if ( (card == FB_ACCEL_MATROX_MGAG200) | |
| 267 || (card == FB_ACCEL_MATROX_MGAG400) | |
| 268 ) { | |
| 269 this->info.blit_hw_A = 1; | |
| 270 this->SetHWAlpha = SetHWAlpha; | |
| 271 } | |
| 272 #endif | |
| 273 } |