Mercurial > sdl-ios-xcode
annotate src/video/fbcon/SDL_fb3dfx.c @ 4244:8fc98498e4f0 SDL-1.2
Fixed bug #806
Max Horn 2009-09-24 13:16:05 PDT
Current SDL 1.2 SVN luckily builds on several systems now: 10.4 (PPC and 32bit intel), 10.5 (32 bit) and 10.6 (32 bit). However, it fails to build on 10.5 in 64 bit mode
author | Sam Lantinga <slouken@libsdl.org> |
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date | Sat, 26 Sep 2009 11:42:39 +0000 |
parents | a1b03ba2fcd0 |
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rev | line source |
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0 | 1 /* |
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2 SDL - Simple DirectMedia Layer |
4159 | 3 Copyright (C) 1997-2009 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_fb3dfx.h" |
27 #include "3dfx_mmio.h" | |
28 | |
29 | |
30 /* Wait for vertical retrace */ | |
31 static void WaitVBL(_THIS) | |
32 { | |
33 /* find start of retrace */ | |
34 tdfx_waitidle(); | |
35 while( (tdfx_in32(TDFX_STATUS) & STATUS_RETRACE) == STATUS_RETRACE ) | |
36 ; | |
37 /* wait until we're past the start */ | |
38 while( (tdfx_in32(TDFX_STATUS) & STATUS_RETRACE) == 0 ) | |
39 ; | |
40 } | |
106
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41 static void WaitIdle(_THIS) |
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42 { |
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43 tdfx_waitidle(); |
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44 } |
0 | 45 |
46 /* Sets video mem colorkey and accelerated blit function */ | |
47 static int SetHWColorKey(_THIS, SDL_Surface *surface, Uint32 key) | |
48 { | |
49 return(0); | |
50 } | |
51 | |
52 static int FillHWRect(_THIS, SDL_Surface *dst, SDL_Rect *rect, Uint32 color) | |
53 { | |
54 int bpp; | |
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55 Uint32 dst_base; |
0 | 56 Uint32 format; |
57 int dstX, dstY; | |
58 | |
109
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59 /* Don't blit to the display surface when switched away */ |
1780 | 60 if ( switched_away ) { |
61 return -2; /* no hardware access */ | |
62 } | |
109
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63 if ( dst == this->screen ) { |
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64 SDL_mutexP(hw_lock); |
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65 } |
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66 |
0 | 67 /* Set the destination pixel format */ |
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68 dst_base = ((char *)dst->pixels - mapped_mem); |
0 | 69 bpp = dst->format->BitsPerPixel; |
70 format = dst->pitch | ((bpp+((bpp==8) ? 0 : 8)) << 13); | |
71 | |
72 /* Calculate source and destination base coordinates */ | |
73 dstX = rect->x; | |
74 dstY = rect->y; | |
75 | |
76 /* Execute the fill command */ | |
77 tdfx_wait(6); | |
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78 tdfx_out32(DSTBASE, dst_base); |
0 | 79 tdfx_out32(DSTFORMAT, format); |
80 tdfx_out32(COLORFORE, color); | |
81 tdfx_out32(COMMAND_2D, COMMAND_2D_FILLRECT); | |
82 tdfx_out32(DSTSIZE, rect->w | (rect->h << 16)); | |
83 tdfx_out32(LAUNCH_2D, dstX | (dstY << 16)); | |
106
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84 |
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85 FB_AddBusySurface(dst); |
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86 |
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87 if ( dst == this->screen ) { |
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88 SDL_mutexV(hw_lock); |
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89 } |
0 | 90 return(0); |
91 } | |
92 | |
93 static int HWAccelBlit(SDL_Surface *src, SDL_Rect *srcrect, | |
94 SDL_Surface *dst, SDL_Rect *dstrect) | |
95 { | |
109
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96 SDL_VideoDevice *this = current_video; |
0 | 97 int bpp; |
98 Uint32 src_format; | |
99 Uint32 dst_format; | |
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100 Uint32 src_base; |
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101 Uint32 dst_base; |
0 | 102 int srcX, srcY; |
103 int dstX, dstY; | |
104 Uint32 blitop; | |
105 Uint32 use_colorkey; | |
106 | |
109
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107 /* Don't blit to the display surface when switched away */ |
1780 | 108 if ( switched_away ) { |
109 return -2; /* no hardware access */ | |
110 } | |
109
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111 if ( dst == this->screen ) { |
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112 SDL_mutexP(hw_lock); |
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113 } |
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114 |
0 | 115 /* Set the source and destination pixel format */ |
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116 src_base = ((char *)src->pixels - mapped_mem); |
0 | 117 bpp = src->format->BitsPerPixel; |
118 src_format = src->pitch | ((bpp+((bpp==8) ? 0 : 8)) << 13); | |
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119 dst_base = ((char *)dst->pixels - mapped_mem); |
0 | 120 bpp = dst->format->BitsPerPixel; |
121 dst_format = dst->pitch | ((bpp+((bpp==8) ? 0 : 8)) << 13); | |
122 | |
123 srcX = srcrect->x; | |
124 srcY = srcrect->y; | |
125 dstX = dstrect->x; | |
126 dstY = dstrect->y; | |
127 | |
128 /* Assemble the blit operation */ | |
129 blitop = COMMAND_2D_BITBLT | (0xCC << 24); | |
130 if ( srcX <= dstX ) { | |
131 blitop |= BIT(14); | |
132 srcX += (dstrect->w - 1); | |
133 dstX += (dstrect->w - 1); | |
134 } | |
135 if ( srcY <= dstY ) { | |
136 blitop |= BIT(15); | |
137 srcY += (dstrect->h - 1); | |
138 dstY += (dstrect->h - 1); | |
139 } | |
140 | |
141 /* Perform the blit! */ | |
142 if ( (src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY ) { | |
143 tdfx_wait(3); | |
144 tdfx_out32(SRCCOLORKEYMIN, src->format->colorkey); | |
145 tdfx_out32(SRCCOLORKEYMAX, src->format->colorkey); | |
146 tdfx_out32(ROP_2D, 0xAA00); | |
147 use_colorkey = 1; | |
148 } else { | |
149 use_colorkey = 0; | |
150 } | |
151 tdfx_wait(9); | |
152 tdfx_out32(SRCBASE, (Uint32)src_base); | |
153 tdfx_out32(SRCFORMAT, src_format); | |
154 tdfx_out32(DSTBASE, (Uint32)dst_base); | |
155 tdfx_out32(DSTFORMAT, src_format); | |
156 tdfx_out32(COMMAND_2D, blitop); | |
157 tdfx_out32(COMMANDEXTRA_2D, use_colorkey); | |
158 tdfx_out32(DSTSIZE, dstrect->w | (dstrect->h << 16)); | |
159 tdfx_out32(DSTXY, dstX | (dstY << 16)); | |
160 tdfx_out32(LAUNCH_2D, srcX | (srcY << 16)); | |
161 | |
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162 FB_AddBusySurface(src); |
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163 FB_AddBusySurface(dst); |
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164 |
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165 if ( dst == this->screen ) { |
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166 SDL_mutexV(hw_lock); |
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167 } |
0 | 168 return(0); |
169 } | |
170 | |
171 static int CheckHWBlit(_THIS, SDL_Surface *src, SDL_Surface *dst) | |
172 { | |
173 int accelerated; | |
174 | |
175 /* Set initial acceleration on */ | |
176 src->flags |= SDL_HWACCEL; | |
177 | |
178 /* Set the surface attributes */ | |
179 if ( (src->flags & SDL_SRCALPHA) == SDL_SRCALPHA ) { | |
180 if ( ! this->info.blit_hw_A ) { | |
181 src->flags &= ~SDL_HWACCEL; | |
182 } | |
183 } | |
184 if ( (src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY ) { | |
185 if ( ! this->info.blit_hw_CC ) { | |
186 src->flags &= ~SDL_HWACCEL; | |
187 } | |
188 } | |
189 | |
190 /* Check to see if final surface blit is accelerated */ | |
191 accelerated = !!(src->flags & SDL_HWACCEL); | |
192 if ( accelerated ) { | |
193 src->map->hw_blit = HWAccelBlit; | |
194 } | |
195 return(accelerated); | |
196 } | |
197 | |
198 void FB_3DfxAccel(_THIS, __u32 card) | |
199 { | |
200 /* We have hardware accelerated surface functions */ | |
201 this->CheckHWBlit = CheckHWBlit; | |
202 wait_vbl = WaitVBL; | |
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203 wait_idle = WaitIdle; |
0 | 204 |
205 /* Reset the 3Dfx controller */ | |
206 tdfx_out32(BRESERROR0, 0); | |
207 tdfx_out32(BRESERROR1, 0); | |
208 | |
209 /* The 3Dfx has an accelerated color fill */ | |
210 this->info.blit_fill = 1; | |
211 this->FillHWRect = FillHWRect; | |
212 | |
213 /* The 3Dfx has accelerated normal and colorkey blits */ | |
214 this->info.blit_hw = 1; | |
215 this->info.blit_hw_CC = 1; | |
216 this->SetHWColorKey = SetHWColorKey; | |
217 } |