Mercurial > sdl-ios-xcode
annotate src/video/fbcon/SDL_fb3dfx.c @ 566:d6e7d7006062
Enable the glXGetProcAddressARB code (fixes problems with NVidia drivers)
author | Sam Lantinga <slouken@libsdl.org> |
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date | Mon, 20 Jan 2003 00:25:28 +0000 |
parents | f6ffac90895c |
children | b8d311d90021 |
rev | line source |
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0 | 1 /* |
2 SDL - Simple DirectMedia Layer | |
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3 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 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_fb3dfx.h" | |
32 #include "3dfx_mmio.h" | |
33 | |
34 | |
35 /* Wait for vertical retrace */ | |
36 static void WaitVBL(_THIS) | |
37 { | |
38 /* find start of retrace */ | |
39 tdfx_waitidle(); | |
40 while( (tdfx_in32(TDFX_STATUS) & STATUS_RETRACE) == STATUS_RETRACE ) | |
41 ; | |
42 /* wait until we're past the start */ | |
43 while( (tdfx_in32(TDFX_STATUS) & STATUS_RETRACE) == 0 ) | |
44 ; | |
45 } | |
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46 static void WaitIdle(_THIS) |
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47 { |
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48 tdfx_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 static int FillHWRect(_THIS, SDL_Surface *dst, SDL_Rect *rect, Uint32 color) | |
58 { | |
59 int bpp; | |
60 char *dst_base; | |
61 Uint32 format; | |
62 int dstX, dstY; | |
63 | |
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64 /* Don't blit to the display surface when switched away */ |
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65 if ( dst == this->screen ) { |
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66 SDL_mutexP(hw_lock); |
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67 } |
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68 |
0 | 69 /* Set the destination pixel format */ |
70 dst_base = (char *)((char *)dst->pixels - mapped_mem); | |
71 bpp = dst->format->BitsPerPixel; | |
72 format = dst->pitch | ((bpp+((bpp==8) ? 0 : 8)) << 13); | |
73 | |
74 /* Calculate source and destination base coordinates */ | |
75 dstX = rect->x; | |
76 dstY = rect->y; | |
77 | |
78 /* Execute the fill command */ | |
79 tdfx_wait(6); | |
80 tdfx_out32(DSTBASE, (Uint32)dst_base); | |
81 tdfx_out32(DSTFORMAT, format); | |
82 tdfx_out32(COLORFORE, color); | |
83 tdfx_out32(COMMAND_2D, COMMAND_2D_FILLRECT); | |
84 tdfx_out32(DSTSIZE, rect->w | (rect->h << 16)); | |
85 tdfx_out32(LAUNCH_2D, dstX | (dstY << 16)); | |
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86 |
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87 FB_AddBusySurface(dst); |
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88 |
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89 if ( dst == this->screen ) { |
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90 SDL_mutexV(hw_lock); |
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91 } |
0 | 92 return(0); |
93 } | |
94 | |
95 static int HWAccelBlit(SDL_Surface *src, SDL_Rect *srcrect, | |
96 SDL_Surface *dst, SDL_Rect *dstrect) | |
97 { | |
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98 SDL_VideoDevice *this = current_video; |
0 | 99 int bpp; |
100 Uint32 src_format; | |
101 Uint32 dst_format; | |
102 char *src_base; | |
103 char *dst_base; | |
104 int srcX, srcY; | |
105 int dstX, dstY; | |
106 Uint32 blitop; | |
107 Uint32 use_colorkey; | |
108 | |
109
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109 /* Don't blit to the display surface when switched away */ |
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110 if ( dst == this->screen ) { |
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111 SDL_mutexP(hw_lock); |
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112 } |
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113 |
0 | 114 /* Set the source and destination pixel format */ |
115 src_base = (char *)((char *)src->pixels - mapped_mem); | |
116 bpp = src->format->BitsPerPixel; | |
117 src_format = src->pitch | ((bpp+((bpp==8) ? 0 : 8)) << 13); | |
118 dst_base = (char *)((char *)dst->pixels - mapped_mem); | |
119 bpp = dst->format->BitsPerPixel; | |
120 dst_format = dst->pitch | ((bpp+((bpp==8) ? 0 : 8)) << 13); | |
121 | |
122 srcX = srcrect->x; | |
123 srcY = srcrect->y; | |
124 dstX = dstrect->x; | |
125 dstY = dstrect->y; | |
126 | |
127 /* Assemble the blit operation */ | |
128 blitop = COMMAND_2D_BITBLT | (0xCC << 24); | |
129 if ( srcX <= dstX ) { | |
130 blitop |= BIT(14); | |
131 srcX += (dstrect->w - 1); | |
132 dstX += (dstrect->w - 1); | |
133 } | |
134 if ( srcY <= dstY ) { | |
135 blitop |= BIT(15); | |
136 srcY += (dstrect->h - 1); | |
137 dstY += (dstrect->h - 1); | |
138 } | |
139 | |
140 /* Perform the blit! */ | |
141 if ( (src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY ) { | |
142 tdfx_wait(3); | |
143 tdfx_out32(SRCCOLORKEYMIN, src->format->colorkey); | |
144 tdfx_out32(SRCCOLORKEYMAX, src->format->colorkey); | |
145 tdfx_out32(ROP_2D, 0xAA00); | |
146 use_colorkey = 1; | |
147 } else { | |
148 use_colorkey = 0; | |
149 } | |
150 tdfx_wait(9); | |
151 tdfx_out32(SRCBASE, (Uint32)src_base); | |
152 tdfx_out32(SRCFORMAT, src_format); | |
153 tdfx_out32(DSTBASE, (Uint32)dst_base); | |
154 tdfx_out32(DSTFORMAT, src_format); | |
155 tdfx_out32(COMMAND_2D, blitop); | |
156 tdfx_out32(COMMANDEXTRA_2D, use_colorkey); | |
157 tdfx_out32(DSTSIZE, dstrect->w | (dstrect->h << 16)); | |
158 tdfx_out32(DSTXY, dstX | (dstY << 16)); | |
159 tdfx_out32(LAUNCH_2D, srcX | (srcY << 16)); | |
160 | |
106
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161 FB_AddBusySurface(src); |
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162 FB_AddBusySurface(dst); |
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163 |
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164 if ( dst == this->screen ) { |
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165 SDL_mutexV(hw_lock); |
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166 } |
0 | 167 return(0); |
168 } | |
169 | |
170 static int CheckHWBlit(_THIS, SDL_Surface *src, SDL_Surface *dst) | |
171 { | |
172 int accelerated; | |
173 | |
174 /* Set initial acceleration on */ | |
175 src->flags |= SDL_HWACCEL; | |
176 | |
177 /* Set the surface attributes */ | |
178 if ( (src->flags & SDL_SRCALPHA) == SDL_SRCALPHA ) { | |
179 if ( ! this->info.blit_hw_A ) { | |
180 src->flags &= ~SDL_HWACCEL; | |
181 } | |
182 } | |
183 if ( (src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY ) { | |
184 if ( ! this->info.blit_hw_CC ) { | |
185 src->flags &= ~SDL_HWACCEL; | |
186 } | |
187 } | |
188 | |
189 /* Check to see if final surface blit is accelerated */ | |
190 accelerated = !!(src->flags & SDL_HWACCEL); | |
191 if ( accelerated ) { | |
192 src->map->hw_blit = HWAccelBlit; | |
193 } | |
194 return(accelerated); | |
195 } | |
196 | |
197 void FB_3DfxAccel(_THIS, __u32 card) | |
198 { | |
199 /* We have hardware accelerated surface functions */ | |
200 this->CheckHWBlit = CheckHWBlit; | |
201 wait_vbl = WaitVBL; | |
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202 wait_idle = WaitIdle; |
0 | 203 |
204 /* Reset the 3Dfx controller */ | |
205 tdfx_out32(BRESERROR0, 0); | |
206 tdfx_out32(BRESERROR1, 0); | |
207 | |
208 /* The 3Dfx has an accelerated color fill */ | |
209 this->info.blit_fill = 1; | |
210 this->FillHWRect = FillHWRect; | |
211 | |
212 /* The 3Dfx has accelerated normal and colorkey blits */ | |
213 this->info.blit_hw = 1; | |
214 this->info.blit_hw_CC = 1; | |
215 this->SetHWColorKey = SetHWColorKey; | |
216 } |