Mercurial > sdl-ios-xcode
annotate src/video/fbcon/SDL_fbmatrox.c @ 4135:cd98d1dc385c SDL-1.2
Damien Carbery fixed bug #542
In SDL 1.2.13 sdl.m4 the AM_PATH_SDL function looks for sdl-config.
It sets the PATH:
PATH="$prefix/bin:$prefix/usr/bin:$PATH"
but does not save the current PATH or restore the current PATH at the end.
This breaks the build on Solaris because we have GNU tools in another dir
(listed at the top of PATH) but non-GNU tools with the same names in
$prefix/bin. Later configure tests finds the non-GNU tools and quits in error
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Thu, 24 Jan 2008 15:50:20 +0000 |
| parents | 7a36f01acf71 |
| children | 782fd950bd46 c121d94672cb a1b03ba2fcd0 |
| 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 */ |
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22 #include "SDL_config.h" |
| 0 | 23 |
| 24 #include "SDL_video.h" | |
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25 #include "../SDL_blit.h" |
| 0 | 26 #include "SDL_fbmatrox.h" |
| 27 #include "matrox_mmio.h" | |
| 28 | |
| 29 | |
| 30 /* Wait for vertical retrace - taken from the XFree86 Matrox driver */ | |
| 31 static void WaitVBL(_THIS) | |
| 32 { | |
| 33 int count; | |
| 34 | |
| 35 /* find start of retrace */ | |
| 36 mga_waitidle(); | |
| 37 while ( (mga_in8(0x1FDA) & 0x08) ) | |
| 38 ; | |
| 39 while ( !(mga_in8(0x1FDA) & 0x08) ) | |
| 40 ; | |
| 41 /* wait until we're past the start */ | |
| 42 count = mga_in32(0x1E20) + 2; | |
| 43 while ( mga_in32(0x1E20) < count ) | |
| 44 ; | |
| 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 } |
| 0 | 50 |
| 51 /* Sets video mem colorkey and accelerated blit function */ | |
| 52 static int SetHWColorKey(_THIS, SDL_Surface *surface, Uint32 key) | |
| 53 { | |
| 54 return(0); | |
| 55 } | |
| 56 | |
| 57 /* Sets per surface hardware alpha value */ | |
| 20 | 58 #if 0 |
| 0 | 59 static int SetHWAlpha(_THIS, SDL_Surface *surface, Uint8 value) |
| 60 { | |
| 61 return(0); | |
| 62 } | |
| 20 | 63 #endif |
| 0 | 64 |
| 65 static int FillHWRect(_THIS, SDL_Surface *dst, SDL_Rect *rect, Uint32 color) | |
| 66 { | |
| 67 int dstX, dstY; | |
| 68 Uint32 fxbndry; | |
| 69 Uint32 ydstlen; | |
| 70 Uint32 fillop; | |
| 71 | |
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72 /* Don't blit to the display surface when switched away */ |
| 1780 | 73 if ( switched_away ) { |
| 74 return -2; /* no hardware access */ | |
| 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 |
| 0 | 80 switch (dst->format->BytesPerPixel) { |
| 81 case 1: | |
| 82 color |= (color<<8); | |
| 83 case 2: | |
| 84 color |= (color<<16); | |
| 85 break; | |
| 86 } | |
| 87 | |
| 88 /* Set up the X/Y base coordinates */ | |
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89 FB_dst_to_xy(this, dst, &dstX, &dstY); |
| 0 | 90 |
| 91 /* Adjust for the current rectangle */ | |
| 92 dstX += rect->x; | |
| 93 dstY += rect->y; | |
| 94 | |
| 95 /* Set up the X boundaries */ | |
| 96 fxbndry = (dstX | ((dstX+rect->w) << 16)); | |
| 97 | |
| 98 /* Set up the Y boundaries */ | |
| 99 ydstlen = (rect->h | (dstY << 16)); | |
| 100 | |
| 101 /* Set up for color fill operation */ | |
| 102 fillop = MGADWG_TRAP | MGADWG_SOLID | | |
| 103 MGADWG_ARZERO | MGADWG_SGNZERO | MGADWG_SHIFTZERO; | |
| 104 | |
| 105 /* Execute the operations! */ | |
| 106 mga_wait(5); | |
| 107 mga_out32(MGAREG_DWGCTL, fillop | MGADWG_REPLACE); | |
| 108 mga_out32(MGAREG_FCOL, color); | |
| 109 mga_out32(MGAREG_FXBNDRY, fxbndry); | |
| 110 mga_out32(MGAREG_YDSTLEN + MGAREG_EXEC, ydstlen); | |
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111 |
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112 FB_AddBusySurface(dst); |
| 0 | 113 |
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114 if ( dst == this->screen ) { |
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115 SDL_mutexV(hw_lock); |
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116 } |
| 0 | 117 return(0); |
| 118 } | |
| 119 | |
| 120 static int HWAccelBlit(SDL_Surface *src, SDL_Rect *srcrect, | |
| 121 SDL_Surface *dst, SDL_Rect *dstrect) | |
| 122 { | |
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123 SDL_VideoDevice *this = current_video; |
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124 int pitch, w, h; |
| 0 | 125 int srcX, srcY; |
| 126 int dstX, dstY; | |
| 127 Uint32 sign; | |
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128 Uint32 start, stop; |
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129 int skip; |
| 0 | 130 Uint32 blitop; |
| 131 | |
| 132 /* FIXME: For now, only blit to display surface */ | |
| 133 if ( dst->pitch != SDL_VideoSurface->pitch ) { | |
| 134 return(src->map->sw_blit(src, srcrect, dst, dstrect)); | |
| 135 } | |
| 136 | |
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137 /* Don't blit to the display surface when switched away */ |
| 1780 | 138 if ( switched_away ) { |
| 139 return -2; /* no hardware access */ | |
| 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 |
| 0 | 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); |
| 0 | 150 |
| 151 /* Adjust for the current blit rectangles */ | |
| 152 srcX += srcrect->x; | |
| 153 srcY += srcrect->y; | |
| 154 dstX += dstrect->x; | |
| 155 dstY += dstrect->y; | |
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156 pitch = dst->pitch/dst->format->BytesPerPixel; |
| 0 | 157 |
| 158 /* Set up the blit direction (sign) flags */ | |
| 159 sign = 0; | |
| 160 if ( srcX < dstX ) { | |
| 161 sign |= 1; | |
| 162 } | |
| 163 if ( srcY < dstY ) { | |
| 164 sign |= 4; | |
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165 srcY += (h - 1); |
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166 dstY += (h - 1); |
| 0 | 167 } |
| 168 | |
| 169 /* Set up the blit source row start, end, and skip (in pixels) */ | |
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170 stop = start = (srcY * pitch) + srcX; |
| 0 | 171 if ( srcX < dstX ) { |
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172 start += (w - 1); |
| 0 | 173 } else { |
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174 stop += (w - 1); |
| 0 | 175 } |
| 176 if ( srcY < dstY ) { | |
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177 skip = -pitch; |
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178 } else { |
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179 skip = pitch; |
| 0 | 180 } |
| 181 | |
| 182 /* Set up the blit operation */ | |
| 183 if ( (src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY ) { | |
| 184 Uint32 colorkey; | |
| 185 | |
| 186 blitop = MGADWG_BFCOL | MGADWG_BITBLT | | |
| 187 MGADWG_SHIFTZERO | MGADWG_RSTR | (0x0C << 16) | | |
| 188 MGADWG_TRANSC; | |
| 189 | |
| 190 colorkey = src->format->colorkey; | |
| 191 switch (dst->format->BytesPerPixel) { | |
| 192 case 1: | |
| 193 colorkey |= (colorkey<<8); | |
| 194 case 2: | |
| 195 colorkey |= (colorkey<<16); | |
| 196 break; | |
| 197 } | |
| 198 mga_wait(2); | |
| 199 mga_out32(MGAREG_FCOL, colorkey); | |
| 200 mga_out32(MGAREG_BCOL, 0xFFFFFFFF); | |
| 201 } else { | |
| 202 blitop = MGADWG_BFCOL | MGADWG_BITBLT | | |
| 203 MGADWG_SHIFTZERO | MGADWG_RSTR | (0x0C << 16); | |
| 204 } | |
| 205 mga_wait(7); | |
| 206 mga_out32(MGAREG_SGN, sign); | |
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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 | 212 mga_out32(MGAREG_DWGCTL + MGAREG_EXEC, blitop); |
| 213 | |
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214 FB_AddBusySurface(src); |
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215 FB_AddBusySurface(dst); |
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216 |
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217 if ( dst == this->screen ) { |
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218 SDL_mutexV(hw_lock); |
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219 } |
| 0 | 220 return(0); |
| 221 } | |
| 222 | |
| 223 static int CheckHWBlit(_THIS, SDL_Surface *src, SDL_Surface *dst) | |
| 224 { | |
| 225 int accelerated; | |
| 226 | |
| 227 /* Set initial acceleration on */ | |
| 228 src->flags |= SDL_HWACCEL; | |
| 229 | |
| 230 /* Set the surface attributes */ | |
| 231 if ( (src->flags & SDL_SRCALPHA) == SDL_SRCALPHA ) { | |
| 232 if ( ! this->info.blit_hw_A ) { | |
| 233 src->flags &= ~SDL_HWACCEL; | |
| 234 } | |
| 235 } | |
| 236 if ( (src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY ) { | |
| 237 if ( ! this->info.blit_hw_CC ) { | |
| 238 src->flags &= ~SDL_HWACCEL; | |
| 239 } | |
| 240 } | |
| 241 | |
| 242 /* Check to see if final surface blit is accelerated */ | |
| 243 accelerated = !!(src->flags & SDL_HWACCEL); | |
| 244 if ( accelerated ) { | |
| 245 src->map->hw_blit = HWAccelBlit; | |
| 246 } | |
| 247 return(accelerated); | |
| 248 } | |
| 249 | |
| 250 void FB_MatroxAccel(_THIS, __u32 card) | |
| 251 { | |
| 252 /* We have hardware accelerated surface functions */ | |
| 253 this->CheckHWBlit = CheckHWBlit; | |
| 254 wait_vbl = WaitVBL; | |
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255 wait_idle = WaitIdle; |
| 0 | 256 |
| 257 /* The Matrox has an accelerated color fill */ | |
| 258 this->info.blit_fill = 1; | |
| 259 this->FillHWRect = FillHWRect; | |
| 260 | |
| 261 /* The Matrox has accelerated normal and colorkey blits. */ | |
| 262 this->info.blit_hw = 1; | |
| 263 /* The Millenium I appears to do the colorkey test a word | |
| 264 at a time, and the transparency is intverted. (?) | |
| 265 */ | |
| 266 if ( card != FB_ACCEL_MATROX_MGA2064W ) { | |
| 267 this->info.blit_hw_CC = 1; | |
| 268 this->SetHWColorKey = SetHWColorKey; | |
| 269 } | |
| 270 | |
| 271 #if 0 /* Not yet implemented? */ | |
| 272 /* The Matrox G200/G400 has an accelerated alpha blit */ | |
| 273 if ( (card == FB_ACCEL_MATROX_MGAG200) | |
| 274 || (card == FB_ACCEL_MATROX_MGAG400) | |
| 275 ) { | |
| 276 this->info.blit_hw_A = 1; | |
| 277 this->SetHWAlpha = SetHWAlpha; | |
| 278 } | |
| 279 #endif | |
| 280 } |