Mercurial > sdl-ios-xcode
annotate src/video/fbcon/SDL_fbmatrox.c @ 1050:8e1815fd9777
Holding down shift while moving the mouse's scrollwheel on MacOS X makes the
OS report these are "horizontal scrollwheel" events, which confuses gaming
apps in several legitimate conditions. Now all scrollwheel events are made
to look vertical when passed to the app.
Patch by John Knottenbelt.
http://www.libsdl.org/pipermail/sdl/2005-March/067978.html
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Sun, 17 Apr 2005 10:32:41 +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 } |