diff options
Diffstat (limited to 'apps/plugins/sdl/src/video/fbcon/SDL_fbriva.c')
-rw-r--r-- | apps/plugins/sdl/src/video/fbcon/SDL_fbriva.c | 222 |
1 files changed, 222 insertions, 0 deletions
diff --git a/apps/plugins/sdl/src/video/fbcon/SDL_fbriva.c b/apps/plugins/sdl/src/video/fbcon/SDL_fbriva.c new file mode 100644 index 0000000000..eb4b71f1bb --- /dev/null +++ b/apps/plugins/sdl/src/video/fbcon/SDL_fbriva.c | |||
@@ -0,0 +1,222 @@ | |||
1 | /* | ||
2 | SDL - Simple DirectMedia Layer | ||
3 | Copyright (C) 1997-2012 Sam Lantinga | ||
4 | |||
5 | This library is free software; you can redistribute it and/or | ||
6 | modify it under the terms of the GNU Lesser General Public | ||
7 | License as published by the Free Software Foundation; either | ||
8 | version 2.1 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 | Lesser General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Lesser General Public | ||
16 | License along with this library; if not, write to the Free Software | ||
17 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | ||
18 | |||
19 | Sam Lantinga | ||
20 | slouken@libsdl.org | ||
21 | */ | ||
22 | #include "SDL_config.h" | ||
23 | |||
24 | #include "SDL_video.h" | ||
25 | #include "../SDL_blit.h" | ||
26 | #include "SDL_fbriva.h" | ||
27 | #include "riva_mmio.h" | ||
28 | #include "riva_regs.h" | ||
29 | |||
30 | |||
31 | static int FifoEmptyCount = 0; | ||
32 | static int FifoFreeCount = 0; | ||
33 | |||
34 | /* Wait for vertical retrace */ | ||
35 | static void WaitVBL(_THIS) | ||
36 | { | ||
37 | volatile Uint8 *port = (Uint8 *)(mapped_io + PCIO_OFFSET + 0x3DA); | ||
38 | |||
39 | while ( (*port & 0x08) ) | ||
40 | ; | ||
41 | while ( !(*port & 0x08) ) | ||
42 | ; | ||
43 | } | ||
44 | static void NV3WaitIdle(_THIS) | ||
45 | { | ||
46 | RivaRop *Rop = (RivaRop *)(mapped_io + ROP_OFFSET); | ||
47 | while ( (Rop->FifoFree < FifoEmptyCount) || | ||
48 | (*(mapped_io + PGRAPH_OFFSET + 0x000006B0) & 0x01) ) | ||
49 | ; | ||
50 | } | ||
51 | static void NV4WaitIdle(_THIS) | ||
52 | { | ||
53 | RivaRop *Rop = (RivaRop *)(mapped_io + ROP_OFFSET); | ||
54 | while ( (Rop->FifoFree < FifoEmptyCount) || | ||
55 | (*(mapped_io + PGRAPH_OFFSET + 0x00000700) & 0x01) ) | ||
56 | ; | ||
57 | } | ||
58 | |||
59 | #if 0 /* Not yet implemented? */ | ||
60 | /* Sets video mem colorkey and accelerated blit function */ | ||
61 | static int SetHWColorKey(_THIS, SDL_Surface *surface, Uint32 key) | ||
62 | { | ||
63 | return(0); | ||
64 | } | ||
65 | |||
66 | /* Sets per surface hardware alpha value */ | ||
67 | static int SetHWAlpha(_THIS, SDL_Surface *surface, Uint8 value) | ||
68 | { | ||
69 | return(0); | ||
70 | } | ||
71 | #endif /* Not yet implemented */ | ||
72 | |||
73 | static int FillHWRect(_THIS, SDL_Surface *dst, SDL_Rect *rect, Uint32 color) | ||
74 | { | ||
75 | int dstX, dstY; | ||
76 | int dstW, dstH; | ||
77 | RivaBitmap *Bitmap = (RivaBitmap *)(mapped_io + BITMAP_OFFSET); | ||
78 | |||
79 | /* Don't blit to the display surface when switched away */ | ||
80 | if ( switched_away ) { | ||
81 | return -2; /* no hardware access */ | ||
82 | } | ||
83 | if ( dst == this->screen ) { | ||
84 | SDL_mutexP(hw_lock); | ||
85 | } | ||
86 | |||
87 | /* Set up the X/Y base coordinates */ | ||
88 | dstW = rect->w; | ||
89 | dstH = rect->h; | ||
90 | FB_dst_to_xy(this, dst, &dstX, &dstY); | ||
91 | |||
92 | /* Adjust for the current rectangle */ | ||
93 | dstX += rect->x; | ||
94 | dstY += rect->y; | ||
95 | |||
96 | RIVA_FIFO_FREE(Bitmap, 1); | ||
97 | Bitmap->Color1A = color; | ||
98 | |||
99 | RIVA_FIFO_FREE(Bitmap, 2); | ||
100 | Bitmap->UnclippedRectangle[0].TopLeft = (dstX << 16) | dstY; | ||
101 | Bitmap->UnclippedRectangle[0].WidthHeight = (dstW << 16) | dstH; | ||
102 | |||
103 | FB_AddBusySurface(dst); | ||
104 | |||
105 | if ( dst == this->screen ) { | ||
106 | SDL_mutexV(hw_lock); | ||
107 | } | ||
108 | return(0); | ||
109 | } | ||
110 | |||
111 | static int HWAccelBlit(SDL_Surface *src, SDL_Rect *srcrect, | ||
112 | SDL_Surface *dst, SDL_Rect *dstrect) | ||
113 | { | ||
114 | SDL_VideoDevice *this = current_video; | ||
115 | int srcX, srcY; | ||
116 | int dstX, dstY; | ||
117 | int dstW, dstH; | ||
118 | RivaScreenBlt *Blt = (RivaScreenBlt *)(mapped_io + BLT_OFFSET); | ||
119 | |||
120 | /* FIXME: For now, only blit to display surface */ | ||
121 | if ( dst->pitch != SDL_VideoSurface->pitch ) { | ||
122 | return(src->map->sw_blit(src, srcrect, dst, dstrect)); | ||
123 | } | ||
124 | |||
125 | /* Don't blit to the display surface when switched away */ | ||
126 | if ( switched_away ) { | ||
127 | return -2; /* no hardware access */ | ||
128 | } | ||
129 | if ( dst == this->screen ) { | ||
130 | SDL_mutexP(hw_lock); | ||
131 | } | ||
132 | |||
133 | /* Calculate source and destination base coordinates (in pixels) */ | ||
134 | dstW = dstrect->w; | ||
135 | dstH = dstrect->h; | ||
136 | FB_dst_to_xy(this, src, &srcX, &srcY); | ||
137 | FB_dst_to_xy(this, dst, &dstX, &dstY); | ||
138 | |||
139 | /* Adjust for the current blit rectangles */ | ||
140 | srcX += srcrect->x; | ||
141 | srcY += srcrect->y; | ||
142 | dstX += dstrect->x; | ||
143 | dstY += dstrect->y; | ||
144 | |||
145 | RIVA_FIFO_FREE(Blt, 3); | ||
146 | Blt->TopLeftSrc = (srcY << 16) | srcX; | ||
147 | Blt->TopLeftDst = (dstY << 16) | dstX; | ||
148 | Blt->WidthHeight = (dstH << 16) | dstW; | ||
149 | |||
150 | FB_AddBusySurface(src); | ||
151 | FB_AddBusySurface(dst); | ||
152 | |||
153 | if ( dst == this->screen ) { | ||
154 | SDL_mutexV(hw_lock); | ||
155 | } | ||
156 | return(0); | ||
157 | } | ||
158 | |||
159 | static int CheckHWBlit(_THIS, SDL_Surface *src, SDL_Surface *dst) | ||
160 | { | ||
161 | int accelerated; | ||
162 | |||
163 | /* Set initial acceleration on */ | ||
164 | src->flags |= SDL_HWACCEL; | ||
165 | |||
166 | /* Set the surface attributes */ | ||
167 | if ( (src->flags & SDL_SRCALPHA) == SDL_SRCALPHA ) { | ||
168 | if ( ! this->info.blit_hw_A ) { | ||
169 | src->flags &= ~SDL_HWACCEL; | ||
170 | } | ||
171 | } | ||
172 | if ( (src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY ) { | ||
173 | if ( ! this->info.blit_hw_CC ) { | ||
174 | src->flags &= ~SDL_HWACCEL; | ||
175 | } | ||
176 | } | ||
177 | |||
178 | /* Check to see if final surface blit is accelerated */ | ||
179 | accelerated = !!(src->flags & SDL_HWACCEL); | ||
180 | if ( accelerated ) { | ||
181 | src->map->hw_blit = HWAccelBlit; | ||
182 | } | ||
183 | return(accelerated); | ||
184 | } | ||
185 | |||
186 | void FB_RivaAccel(_THIS, __u32 card) | ||
187 | { | ||
188 | RivaRop *Rop = (RivaRop *)(mapped_io + ROP_OFFSET); | ||
189 | |||
190 | /* We have hardware accelerated surface functions */ | ||
191 | this->CheckHWBlit = CheckHWBlit; | ||
192 | wait_vbl = WaitVBL; | ||
193 | switch (card) { | ||
194 | case FB_ACCEL_NV3: | ||
195 | wait_idle = NV3WaitIdle; | ||
196 | break; | ||
197 | case FB_ACCEL_NV4: | ||
198 | wait_idle = NV4WaitIdle; | ||
199 | break; | ||
200 | default: | ||
201 | /* Hmm... FIXME */ | ||
202 | break; | ||
203 | } | ||
204 | FifoEmptyCount = Rop->FifoFree; | ||
205 | |||
206 | /* The Riva has an accelerated color fill */ | ||
207 | this->info.blit_fill = 1; | ||
208 | this->FillHWRect = FillHWRect; | ||
209 | |||
210 | /* The Riva has accelerated normal and colorkey blits. */ | ||
211 | this->info.blit_hw = 1; | ||
212 | #if 0 /* Not yet implemented? */ | ||
213 | this->info.blit_hw_CC = 1; | ||
214 | this->SetHWColorKey = SetHWColorKey; | ||
215 | #endif | ||
216 | |||
217 | #if 0 /* Not yet implemented? */ | ||
218 | /* The Riva has an accelerated alpha blit */ | ||
219 | this->info.blit_hw_A = 1; | ||
220 | this->SetHWAlpha = SetHWAlpha; | ||
221 | #endif | ||
222 | } | ||