2 * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
3 * Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sub license,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice (including the
13 * next paragraph) shall be included in all copies or substantial portions
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
19 * VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
35 #include "via_context.h"
36 #include "via_state.h"
39 #include "via_ioctl.h"
40 #include "via_3d_reg.h"
42 #include "swrast/swrast.h"
45 #include "swrast_setup/swrast_setup.h"
47 #include "tnl/t_pipeline.h"
50 static GLuint ROP
[16] = {
51 HC_HROP_BLACK
, /* GL_CLEAR 0 */
52 HC_HROP_DPa
, /* GL_AND s & d */
53 HC_HROP_PDna
, /* GL_AND_REVERSE s & ~d */
54 HC_HROP_P
, /* GL_COPY s */
55 HC_HROP_DPna
, /* GL_AND_INVERTED ~s & d */
56 HC_HROP_D
, /* GL_NOOP d */
57 HC_HROP_DPx
, /* GL_XOR s ^ d */
58 HC_HROP_DPo
, /* GL_OR s | d */
59 HC_HROP_DPon
, /* GL_NOR ~(s | d) */
60 HC_HROP_DPxn
, /* GL_EQUIV ~(s ^ d) */
61 HC_HROP_Dn
, /* GL_INVERT ~d */
62 HC_HROP_PDno
, /* GL_OR_REVERSE s | ~d */
63 HC_HROP_Pn
, /* GL_COPY_INVERTED ~s */
64 HC_HROP_DPno
, /* GL_OR_INVERTED ~s | d */
65 HC_HROP_DPan
, /* GL_NAND ~(s & d) */
66 HC_HROP_WHITE
/* GL_SET 1 */
70 * Compute the 'S5.5' lod bias factor from the floating point OpenGL bias.
72 static GLuint
viaComputeLodBias(GLfloat bias
)
74 int b
= (int) (bias
* 32.0);
82 void viaEmitState(struct via_context
*vmesa
)
84 GLcontext
*ctx
= vmesa
->glCtx
;
89 viaCheckDma(vmesa
, 0x110);
92 OUT_RING( HC_HEADER2
);
93 OUT_RING( (HC_ParaType_NotTex
<< 16) );
94 OUT_RING( ((HC_SubA_HEnable
<< 24) | vmesa
->regEnable
) );
95 OUT_RING( ((HC_SubA_HFBBMSKL
<< 24) | vmesa
->regHFBBMSKL
) );
96 OUT_RING( ((HC_SubA_HROP
<< 24) | vmesa
->regHROP
) );
99 if (vmesa
->have_hw_stencil
) {
100 GLuint pitch
, format
, offset
;
102 format
= HC_HZWBFM_24
;
103 offset
= vmesa
->depth
.offset
;
104 pitch
= vmesa
->depth
.pitch
;
107 OUT_RING( (HC_SubA_HZWBBasL
<< 24) | (offset
& 0xFFFFFF) );
108 OUT_RING( (HC_SubA_HZWBBasH
<< 24) | ((offset
& 0xFF000000) >> 24) );
109 OUT_RING( (HC_SubA_HZWBType
<< 24) | HC_HDBLoc_Local
| HC_HZONEasFF_MASK
|
111 OUT_RING( (HC_SubA_HZWTMD
<< 24) | vmesa
->regHZWTMD
);
112 OUT_RING( (HC_SubA_HSTREF
<< 24) | vmesa
->regHSTREF
);
113 OUT_RING( (HC_SubA_HSTMD
<< 24) | vmesa
->regHSTMD
);
116 else if (vmesa
->hasDepth
) {
117 GLuint pitch
, format
, offset
;
119 if (vmesa
->depthBits
== 16) {
120 format
= HC_HZWBFM_16
;
123 format
= HC_HZWBFM_32
;
127 offset
= vmesa
->depth
.offset
;
128 pitch
= vmesa
->depth
.pitch
;
131 OUT_RING( (HC_SubA_HZWBBasL
<< 24) | (offset
& 0xFFFFFF) );
132 OUT_RING( (HC_SubA_HZWBBasH
<< 24) | ((offset
& 0xFF000000) >> 24) );
133 OUT_RING( (HC_SubA_HZWBType
<< 24) | HC_HDBLoc_Local
| HC_HZONEasFF_MASK
|
135 OUT_RING( (HC_SubA_HZWTMD
<< 24) | vmesa
->regHZWTMD
);
139 if (ctx
->Color
.AlphaEnabled
) {
141 OUT_RING( (HC_SubA_HATMD
<< 24) | vmesa
->regHATMD
);
146 if (ctx
->Color
.BlendEnabled
) {
148 OUT_RING( (HC_SubA_HABLCsat
<< 24) | vmesa
->regHABLCsat
);
149 OUT_RING( (HC_SubA_HABLCop
<< 24) | vmesa
->regHABLCop
);
150 OUT_RING( (HC_SubA_HABLAsat
<< 24) | vmesa
->regHABLAsat
);
151 OUT_RING( (HC_SubA_HABLAop
<< 24) | vmesa
->regHABLAop
);
152 OUT_RING( (HC_SubA_HABLRCa
<< 24) | vmesa
->regHABLRCa
);
153 OUT_RING( (HC_SubA_HABLRFCa
<< 24) | vmesa
->regHABLRFCa
);
154 OUT_RING( (HC_SubA_HABLRCbias
<< 24) | vmesa
->regHABLRCbias
);
155 OUT_RING( (HC_SubA_HABLRCb
<< 24) | vmesa
->regHABLRCb
);
156 OUT_RING( (HC_SubA_HABLRFCb
<< 24) | vmesa
->regHABLRFCb
);
157 OUT_RING( (HC_SubA_HABLRAa
<< 24) | vmesa
->regHABLRAa
);
158 OUT_RING( (HC_SubA_HABLRAb
<< 24) | vmesa
->regHABLRAb
);
162 if (ctx
->Fog
.Enabled
) {
164 OUT_RING( (HC_SubA_HFogLF
<< 24) | vmesa
->regHFogLF
);
165 OUT_RING( (HC_SubA_HFogCL
<< 24) | vmesa
->regHFogCL
);
166 OUT_RING( (HC_SubA_HFogCH
<< 24) | vmesa
->regHFogCH
);
170 if (ctx
->Line
.StippleFlag
) {
172 OUT_RING( (HC_SubA_HLP
<< 24) | ctx
->Line
.StipplePattern
);
173 OUT_RING( (HC_SubA_HLPRF
<< 24) | ctx
->Line
.StippleFactor
);
178 OUT_RING( (HC_SubA_HPixGC
<< 24) | 0x0 );
184 if (ctx
->Texture
._EnabledUnits
) {
186 struct gl_texture_unit
*texUnit0
= &ctx
->Texture
.Unit
[0];
187 struct gl_texture_unit
*texUnit1
= &ctx
->Texture
.Unit
[1];
190 GLuint nDummyValue
= 0;
193 OUT_RING( HC_HEADER2
);
194 OUT_RING( (HC_ParaType_Tex
<< 16) | (HC_SubType_TexGeneral
<< 24) );
196 if (texUnit0
->Enabled
&& texUnit1
->Enabled
) {
197 nDummyValue
= (HC_SubA_HTXSMD
<< 24) | (1 << 3);
200 nDummyValue
= (HC_SubA_HTXSMD
<< 24) | 0;
203 if (vmesa
->clearTexCache
) {
204 vmesa
->clearTexCache
= 0;
205 OUT_RING( nDummyValue
| HC_HTXCHCLR_MASK
);
206 OUT_RING( nDummyValue
);
209 OUT_RING( nDummyValue
);
210 OUT_RING( nDummyValue
);
213 OUT_RING( HC_HEADER2
);
214 OUT_RING( HC_ParaType_NotTex
<< 16 );
215 OUT_RING( (HC_SubA_HEnable
<< 24) | vmesa
->regEnable
);
216 OUT_RING( (HC_SubA_HEnable
<< 24) | vmesa
->regEnable
);
220 if (texUnit0
->Enabled
) {
221 struct gl_texture_object
*texObj
= texUnit0
->_Current
;
222 struct via_texture_object
*t
= (struct via_texture_object
*)texObj
;
223 GLuint numLevels
= t
->lastLevel
- t
->firstLevel
+ 1;
224 if (VIA_DEBUG
& DEBUG_STATE
) {
225 fprintf(stderr
, "texture0 enabled\n");
227 if (numLevels
== 8) {
229 OUT_RING( HC_HEADER2
);
230 OUT_RING( (HC_ParaType_Tex
<< 16) | (0 << 24) );
231 OUT_RING( t
->regTexFM
);
232 OUT_RING( (HC_SubA_HTXnL0OS
<< 24) |
233 ((t
->lastLevel
) << HC_HTXnLVmax_SHIFT
) | t
->firstLevel
);
234 OUT_RING( t
->regTexWidthLog2
[0] );
235 OUT_RING( t
->regTexWidthLog2
[1] );
236 OUT_RING( t
->regTexHeightLog2
[0] );
237 OUT_RING( t
->regTexHeightLog2
[1] );
238 OUT_RING( t
->regTexBaseH
[0] );
239 OUT_RING( t
->regTexBaseH
[1] );
240 OUT_RING( t
->regTexBaseH
[2] );
241 OUT_RING( t
->regTexBaseAndPitch
[0].baseL
);
242 OUT_RING( t
->regTexBaseAndPitch
[0].pitchLog2
);
243 OUT_RING( t
->regTexBaseAndPitch
[1].baseL
);
244 OUT_RING( t
->regTexBaseAndPitch
[1].pitchLog2
);
245 OUT_RING( t
->regTexBaseAndPitch
[2].baseL
);
246 OUT_RING( t
->regTexBaseAndPitch
[2].pitchLog2
);
247 OUT_RING( t
->regTexBaseAndPitch
[3].baseL
);
248 OUT_RING( t
->regTexBaseAndPitch
[3].pitchLog2
);
249 OUT_RING( t
->regTexBaseAndPitch
[4].baseL
);
250 OUT_RING( t
->regTexBaseAndPitch
[4].pitchLog2
);
251 OUT_RING( t
->regTexBaseAndPitch
[5].baseL
);
252 OUT_RING( t
->regTexBaseAndPitch
[5].pitchLog2
);
253 OUT_RING( t
->regTexBaseAndPitch
[6].baseL
);
254 OUT_RING( t
->regTexBaseAndPitch
[6].pitchLog2
);
255 OUT_RING( t
->regTexBaseAndPitch
[7].baseL
);
256 OUT_RING( t
->regTexBaseAndPitch
[7].pitchLog2
);
259 else if (numLevels
> 1) {
261 BEGIN_RING(12 + numLevels
* 2);
262 OUT_RING( HC_HEADER2
);
263 OUT_RING( (HC_ParaType_Tex
<< 16) | (0 << 24) );
264 OUT_RING( t
->regTexFM
);
265 OUT_RING( (HC_SubA_HTXnL0OS
<< 24) |
266 ((t
->lastLevel
) << HC_HTXnLVmax_SHIFT
) | t
->firstLevel
);
267 OUT_RING( t
->regTexWidthLog2
[0] );
268 OUT_RING( t
->regTexHeightLog2
[0] );
271 OUT_RING( t
->regTexWidthLog2
[1] );
272 OUT_RING( t
->regTexHeightLog2
[1] );
275 OUT_RING( t
->regTexBaseH
[0] );
278 OUT_RING( t
->regTexBaseH
[1] );
281 OUT_RING( t
->regTexBaseH
[2] );
284 OUT_RING( t
->regTexBaseH
[3] );
287 for (j
= 0; j
< numLevels
; j
++) {
288 OUT_RING( t
->regTexBaseAndPitch
[j
].baseL
);
289 OUT_RING( t
->regTexBaseAndPitch
[j
].pitchLog2
);
292 ADVANCE_RING_VARIABLE();
297 OUT_RING( HC_HEADER2
);
298 OUT_RING( (HC_ParaType_Tex
<< 16) | (0 << 24) );
299 OUT_RING( t
->regTexFM
);
300 OUT_RING( (HC_SubA_HTXnL0OS
<< 24) |
301 ((t
->lastLevel
) << HC_HTXnLVmax_SHIFT
) | t
->firstLevel
);
302 OUT_RING( t
->regTexWidthLog2
[0] );
303 OUT_RING( t
->regTexHeightLog2
[0] );
304 OUT_RING( t
->regTexBaseH
[0] );
305 OUT_RING( t
->regTexBaseAndPitch
[0].baseL
);
306 OUT_RING( t
->regTexBaseAndPitch
[0].pitchLog2
);
311 OUT_RING( (HC_SubA_HTXnTB
<< 24) | vmesa
->regHTXnTB
[0] );
312 OUT_RING( (HC_SubA_HTXnMPMD
<< 24) | vmesa
->regHTXnMPMD
[0] );
313 OUT_RING( (HC_SubA_HTXnTBLCsat
<< 24) | vmesa
->regHTXnTBLCsat
[0] );
314 OUT_RING( (HC_SubA_HTXnTBLCop
<< 24) | vmesa
->regHTXnTBLCop
[0] );
315 OUT_RING( (HC_SubA_HTXnTBLMPfog
<< 24) | vmesa
->regHTXnTBLMPfog
[0] );
316 OUT_RING( (HC_SubA_HTXnTBLAsat
<< 24) | vmesa
->regHTXnTBLAsat
[0] );
317 OUT_RING( (HC_SubA_HTXnTBLRCb
<< 24) | vmesa
->regHTXnTBLRCb
[0] );
318 OUT_RING( (HC_SubA_HTXnTBLRAa
<< 24) | vmesa
->regHTXnTBLRAa
[0] );
319 OUT_RING( (HC_SubA_HTXnTBLRFog
<< 24) | vmesa
->regHTXnTBLRFog
[0] );
320 OUT_RING( (HC_SubA_HTXnTBLRCa
<< 24) | vmesa
->regHTXnTBLRCa
[0] );
321 OUT_RING( (HC_SubA_HTXnTBLRCc
<< 24) | vmesa
->regHTXnTBLRCc
[0] );
322 OUT_RING( (HC_SubA_HTXnTBLRCbias
<< 24) | vmesa
->regHTXnTBLRCbias
[0] );
323 OUT_RING( (HC_SubA_HTXnTBC
<< 24) | vmesa
->regHTXnTBC
[0] );
324 OUT_RING( (HC_SubA_HTXnTRAH
<< 24) | vmesa
->regHTXnTRAH
[0] );
325 /* OUT_RING( (HC_SubA_HTXnCLODu << 24) | vmesa->regHTXnCLOD[0] ); */
328 /* KW: This test never succeeds:
330 if (t
->regTexFM
== HC_HTXnFM_Index8
) {
331 const struct gl_color_table
*table
= &texObj
->Palette
;
332 const GLfloat
*tableF
= table
->TableF
;
334 BEGIN_RING(2 + table
->Size
);
335 OUT_RING( HC_HEADER2
);
336 OUT_RING( (HC_ParaType_Palette
<< 16) | (0 << 24) );
337 for (j
= 0; j
< table
->Size
; j
++)
338 OUT_RING( tableF
[j
] );
346 if (texUnit1
->Enabled
) {
347 struct gl_texture_object
*texObj
= texUnit1
->_Current
;
348 struct via_texture_object
*t
= (struct via_texture_object
*)texObj
;
349 GLuint numLevels
= t
->lastLevel
- t
->firstLevel
+ 1;
350 int texunit
= (texUnit0
->Enabled
? 1 : 0);
351 if (VIA_DEBUG
& DEBUG_STATE
) {
352 fprintf(stderr
, "texture1 enabled\n");
354 if (numLevels
== 8) {
356 OUT_RING( HC_HEADER2
);
357 OUT_RING( (HC_ParaType_Tex
<< 16) | (texunit
<< 24) );
358 OUT_RING( t
->regTexFM
);
359 OUT_RING( (HC_SubA_HTXnL0OS
<< 24) |
360 ((t
->lastLevel
) << HC_HTXnLVmax_SHIFT
) | t
->firstLevel
);
361 OUT_RING( t
->regTexWidthLog2
[0] );
362 OUT_RING( t
->regTexWidthLog2
[1] );
363 OUT_RING( t
->regTexHeightLog2
[0] );
364 OUT_RING( t
->regTexHeightLog2
[1] );
365 OUT_RING( t
->regTexBaseH
[0] );
366 OUT_RING( t
->regTexBaseH
[1] );
367 OUT_RING( t
->regTexBaseH
[2] );
368 OUT_RING( t
->regTexBaseAndPitch
[0].baseL
);
369 OUT_RING( t
->regTexBaseAndPitch
[0].pitchLog2
);
370 OUT_RING( t
->regTexBaseAndPitch
[1].baseL
);
371 OUT_RING( t
->regTexBaseAndPitch
[1].pitchLog2
);
372 OUT_RING( t
->regTexBaseAndPitch
[2].baseL
);
373 OUT_RING( t
->regTexBaseAndPitch
[2].pitchLog2
);
374 OUT_RING( t
->regTexBaseAndPitch
[3].baseL
);
375 OUT_RING( t
->regTexBaseAndPitch
[3].pitchLog2
);
376 OUT_RING( t
->regTexBaseAndPitch
[4].baseL
);
377 OUT_RING( t
->regTexBaseAndPitch
[4].pitchLog2
);
378 OUT_RING( t
->regTexBaseAndPitch
[5].baseL
);
379 OUT_RING( t
->regTexBaseAndPitch
[5].pitchLog2
);
380 OUT_RING( t
->regTexBaseAndPitch
[6].baseL
);
381 OUT_RING( t
->regTexBaseAndPitch
[6].pitchLog2
);
382 OUT_RING( t
->regTexBaseAndPitch
[7].baseL
);
383 OUT_RING( t
->regTexBaseAndPitch
[7].pitchLog2
);
386 else if (numLevels
> 1) {
387 BEGIN_RING(12 + numLevels
* 2);
388 OUT_RING( HC_HEADER2
);
389 OUT_RING( (HC_ParaType_Tex
<< 16) | (texunit
<< 24) );
390 OUT_RING( t
->regTexFM
);
391 OUT_RING( (HC_SubA_HTXnL0OS
<< 24) |
392 ((t
->lastLevel
) << HC_HTXnLVmax_SHIFT
) | t
->firstLevel
);
393 OUT_RING( t
->regTexWidthLog2
[0] );
394 OUT_RING( t
->regTexHeightLog2
[0] );
397 OUT_RING( t
->regTexWidthLog2
[1] );
398 OUT_RING( t
->regTexHeightLog2
[1] );
402 OUT_RING( t
->regTexBaseH
[0] );
405 OUT_RING( t
->regTexBaseH
[1] );
408 OUT_RING( t
->regTexBaseH
[2] );
411 OUT_RING( t
->regTexBaseH
[3] );
414 for (j
= 0; j
< numLevels
; j
++) {
415 OUT_RING( t
->regTexBaseAndPitch
[j
].baseL
);
416 OUT_RING( t
->regTexBaseAndPitch
[j
].pitchLog2
);
418 ADVANCE_RING_VARIABLE();
422 OUT_RING( HC_HEADER2
);
423 OUT_RING( (HC_ParaType_Tex
<< 16) | (texunit
<< 24) );
424 OUT_RING( t
->regTexFM
);
425 OUT_RING( (HC_SubA_HTXnL0OS
<< 24) |
426 ((t
->lastLevel
) << HC_HTXnLVmax_SHIFT
) | t
->firstLevel
);
427 OUT_RING( t
->regTexWidthLog2
[0] );
428 OUT_RING( t
->regTexHeightLog2
[0] );
429 OUT_RING( t
->regTexBaseH
[0] );
430 OUT_RING( t
->regTexBaseAndPitch
[0].baseL
);
431 OUT_RING( t
->regTexBaseAndPitch
[0].pitchLog2
);
436 OUT_RING( (HC_SubA_HTXnTB
<< 24) | vmesa
->regHTXnTB
[1] );
437 OUT_RING( (HC_SubA_HTXnMPMD
<< 24) | vmesa
->regHTXnMPMD
[1] );
438 OUT_RING( (HC_SubA_HTXnTBLCsat
<< 24) | vmesa
->regHTXnTBLCsat
[1] );
439 OUT_RING( (HC_SubA_HTXnTBLCop
<< 24) | vmesa
->regHTXnTBLCop
[1] );
440 OUT_RING( (HC_SubA_HTXnTBLMPfog
<< 24) | vmesa
->regHTXnTBLMPfog
[1] );
441 OUT_RING( (HC_SubA_HTXnTBLAsat
<< 24) | vmesa
->regHTXnTBLAsat
[1] );
442 OUT_RING( (HC_SubA_HTXnTBLRCb
<< 24) | vmesa
->regHTXnTBLRCb
[1] );
443 OUT_RING( (HC_SubA_HTXnTBLRAa
<< 24) | vmesa
->regHTXnTBLRAa
[1] );
444 OUT_RING( (HC_SubA_HTXnTBLRFog
<< 24) | vmesa
->regHTXnTBLRFog
[1] );
445 OUT_RING( (HC_SubA_HTXnTBLRCa
<< 24) | vmesa
->regHTXnTBLRCa
[1] );
446 OUT_RING( (HC_SubA_HTXnTBLRCc
<< 24) | vmesa
->regHTXnTBLRCc
[1] );
447 OUT_RING( (HC_SubA_HTXnTBLRCbias
<< 24) | vmesa
->regHTXnTBLRCbias
[1] );
448 OUT_RING( (HC_SubA_HTXnTBC
<< 24) | vmesa
->regHTXnTBC
[1] );
449 OUT_RING( (HC_SubA_HTXnTRAH
<< 24) | vmesa
->regHTXnTRAH
[1] );
450 /* OUT_RING( (HC_SubA_HTXnCLODu << 24) | vmesa->regHTXnCLOD[1] ); */
453 /* KW: This test never succeeds:
455 if (t
->regTexFM
== HC_HTXnFM_Index8
) {
456 const struct gl_color_table
*table
= &texObj
->Palette
;
457 const GLfloat
*tableF
= table
->TableF
;
459 BEGIN_RING(2 + table
->Size
);
460 OUT_RING( HC_HEADER2
);
461 OUT_RING( (HC_ParaType_Palette
<< 16) | (texunit
<< 24) );
462 for (j
= 0; j
< table
->Size
; j
++) {
463 OUT_RING( tableF
[j
] );
473 /* Polygon stipple is broken - for certain stipple values,
474 * eg. 0xf0f0f0f0, the hardware will refuse to accept the stipple.
475 * Coincidentally, conform generates just such a stipple.
477 if (ctx
->Polygon
.StippleFlag
) {
478 GLuint
*stipple
= &ctx
->PolygonStipple
[0];
479 __DRIdrawablePrivate
*dPriv
= vmesa
->driDrawable
;
480 struct via_renderbuffer
*const vrb
=
481 (struct via_renderbuffer
*) dPriv
->driverPrivate
;
485 OUT_RING( HC_HEADER2
);
487 OUT_RING( ((HC_ParaType_Palette
<< 16) | (HC_SubType_Stipple
<< 24)) );
488 for (i
= 31; i
>= 0; i
--) {
492 /* Need to flip bits left to right:
494 for (j
= 0 ; j
< 32; j
++)
495 if (stipple
[i
] & (1<<j
))
501 OUT_RING( HC_HEADER2
);
502 OUT_RING( (HC_ParaType_NotTex
<< 16) );
503 OUT_RING( (HC_SubA_HSPXYOS
<< 24) );
504 OUT_RING( (HC_SubA_HSPXYOS
<< 24) );
510 vmesa
->newEmitState
= 0;
514 static INLINE GLuint
viaPackColor(GLuint bpp
,
515 GLubyte r
, GLubyte g
,
516 GLubyte b
, GLubyte a
)
520 return PACK_COLOR_565(r
, g
, b
);
522 return PACK_COLOR_8888(a
, r
, g
, b
);
529 static void viaBlendEquationSeparate(GLcontext
*ctx
,
533 if (VIA_DEBUG
& DEBUG_STATE
)
534 fprintf(stderr
, "%s in\n", __FUNCTION__
);
536 /* GL_EXT_blend_equation_separate not supported */
537 ASSERT(rgbMode
== aMode
);
539 /* Can only do GL_ADD equation in hardware */
540 FALLBACK(VIA_CONTEXT(ctx
), VIA_FALLBACK_BLEND_EQ
,
541 rgbMode
!= GL_FUNC_ADD_EXT
);
543 /* BlendEquation sets ColorLogicOpEnabled in an unexpected
546 FALLBACK(VIA_CONTEXT(ctx
), VIA_FALLBACK_LOGICOP
,
547 (ctx
->Color
.ColorLogicOpEnabled
&&
548 ctx
->Color
.LogicOp
!= GL_COPY
));
551 static void viaBlendFunc(GLcontext
*ctx
, GLenum sfactor
, GLenum dfactor
)
553 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
554 GLboolean fallback
= GL_FALSE
;
555 if (VIA_DEBUG
& DEBUG_STATE
)
556 fprintf(stderr
, "%s in\n", __FUNCTION__
);
558 switch (ctx
->Color
.BlendSrcRGB
) {
559 case GL_SRC_ALPHA_SATURATE
:
560 case GL_CONSTANT_COLOR
:
561 case GL_ONE_MINUS_CONSTANT_COLOR
:
562 case GL_CONSTANT_ALPHA
:
563 case GL_ONE_MINUS_CONSTANT_ALPHA
:
570 switch (ctx
->Color
.BlendDstRGB
) {
571 case GL_CONSTANT_COLOR
:
572 case GL_ONE_MINUS_CONSTANT_COLOR
:
573 case GL_CONSTANT_ALPHA
:
574 case GL_ONE_MINUS_CONSTANT_ALPHA
:
581 FALLBACK(vmesa
, VIA_FALLBACK_BLEND_FUNC
, fallback
);
584 /* Shouldn't be called as the extension is disabled.
586 static void viaBlendFuncSeparate(GLcontext
*ctx
, GLenum sfactorRGB
,
587 GLenum dfactorRGB
, GLenum sfactorA
,
590 if (dfactorRGB
!= dfactorA
|| sfactorRGB
!= sfactorA
) {
591 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBlendEquation (disabled)");
594 viaBlendFunc(ctx
, sfactorRGB
, dfactorRGB
);
600 /* =============================================================
603 static void viaScissor(GLcontext
*ctx
, GLint x
, GLint y
,
604 GLsizei w
, GLsizei h
)
606 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
608 if (!vmesa
->driDrawable
)
611 if (VIA_DEBUG
& DEBUG_STATE
)
612 fprintf(stderr
, "%s %d,%d %dx%d, drawH %d\n", __FUNCTION__
,
613 x
,y
,w
,h
, vmesa
->driDrawable
->h
);
615 if (vmesa
->scissor
) {
616 VIA_FLUSH_DMA(vmesa
); /* don't pipeline cliprect changes */
619 vmesa
->scissorRect
.x1
= x
;
620 vmesa
->scissorRect
.y1
= vmesa
->driDrawable
->h
- y
- h
;
621 vmesa
->scissorRect
.x2
= x
+ w
;
622 vmesa
->scissorRect
.y2
= vmesa
->driDrawable
->h
- y
;
625 static void viaEnable(GLcontext
*ctx
, GLenum cap
, GLboolean state
)
627 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
630 case GL_SCISSOR_TEST
:
631 VIA_FLUSH_DMA(vmesa
);
632 vmesa
->scissor
= state
;
641 /* Fallback to swrast for select and feedback.
643 static void viaRenderMode(GLcontext
*ctx
, GLenum mode
)
645 FALLBACK(VIA_CONTEXT(ctx
), VIA_FALLBACK_RENDERMODE
, (mode
!= GL_RENDER
));
649 static void viaDrawBuffer(GLcontext
*ctx
, GLenum mode
)
651 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
653 if (VIA_DEBUG
& (DEBUG_DRI
|DEBUG_STATE
))
654 fprintf(stderr
, "%s in\n", __FUNCTION__
);
656 if (!ctx
->DrawBuffer
)
659 if (ctx
->DrawBuffer
->_NumColorDrawBuffers
!= 1) {
660 FALLBACK(vmesa
, VIA_FALLBACK_DRAW_BUFFER
, GL_TRUE
);
664 switch ( ctx
->DrawBuffer
->_ColorDrawBufferIndexes
[0] ) {
665 case BUFFER_FRONT_LEFT
:
666 VIA_FLUSH_DMA(vmesa
);
667 vmesa
->drawBuffer
= &vmesa
->front
;
668 FALLBACK(vmesa
, VIA_FALLBACK_DRAW_BUFFER
, GL_FALSE
);
670 case BUFFER_BACK_LEFT
:
671 VIA_FLUSH_DMA(vmesa
);
672 vmesa
->drawBuffer
= &vmesa
->back
;
673 FALLBACK(vmesa
, VIA_FALLBACK_DRAW_BUFFER
, GL_FALSE
);
676 FALLBACK(vmesa
, VIA_FALLBACK_DRAW_BUFFER
, GL_TRUE
);
681 viaXMesaWindowMoved(vmesa
);
684 static void viaClearColor(GLcontext
*ctx
, const GLfloat color
[4])
686 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
688 CLAMPED_FLOAT_TO_UBYTE(pcolor
[0], color
[0]);
689 CLAMPED_FLOAT_TO_UBYTE(pcolor
[1], color
[1]);
690 CLAMPED_FLOAT_TO_UBYTE(pcolor
[2], color
[2]);
691 CLAMPED_FLOAT_TO_UBYTE(pcolor
[3], color
[3]);
692 vmesa
->ClearColor
= viaPackColor(vmesa
->viaScreen
->bitsPerPixel
,
693 pcolor
[0], pcolor
[1],
694 pcolor
[2], pcolor
[3]);
697 #define WRITEMASK_ALPHA_SHIFT 31
698 #define WRITEMASK_RED_SHIFT 30
699 #define WRITEMASK_GREEN_SHIFT 29
700 #define WRITEMASK_BLUE_SHIFT 28
702 static void viaColorMask(GLcontext
*ctx
,
703 GLboolean r
, GLboolean g
,
704 GLboolean b
, GLboolean a
)
706 struct via_context
*vmesa
= VIA_CONTEXT( ctx
);
708 if (VIA_DEBUG
& DEBUG_STATE
)
709 fprintf(stderr
, "%s r(%d) g(%d) b(%d) a(%d)\n", __FUNCTION__
, r
, g
, b
, a
);
711 vmesa
->ClearMask
= (((!r
) << WRITEMASK_RED_SHIFT
) |
712 ((!g
) << WRITEMASK_GREEN_SHIFT
) |
713 ((!b
) << WRITEMASK_BLUE_SHIFT
) |
714 ((!a
) << WRITEMASK_ALPHA_SHIFT
));
719 /* This hardware just isn't capable of private back buffers without
720 * glitches and/or a hefty locking scheme.
722 void viaCalcViewport(GLcontext
*ctx
)
724 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
725 __DRIdrawablePrivate
*dPriv
= vmesa
->driDrawable
;
726 struct via_renderbuffer
*const vrb
=
727 (struct via_renderbuffer
*) dPriv
->driverPrivate
;
728 const GLfloat
*v
= ctx
->Viewport
._WindowMap
.m
;
729 GLfloat
*m
= vmesa
->ViewportMatrix
.m
;
731 m
[MAT_SX
] = v
[MAT_SX
];
732 m
[MAT_TX
] = v
[MAT_TX
] + vrb
->drawX
+ SUBPIXEL_X
;
733 m
[MAT_SY
] = - v
[MAT_SY
];
734 m
[MAT_TY
] = - v
[MAT_TY
] + vrb
->drawY
+ SUBPIXEL_Y
+ vrb
->drawH
;
735 m
[MAT_SZ
] = v
[MAT_SZ
] * (1.0 / vmesa
->depth_max
);
736 m
[MAT_TZ
] = v
[MAT_TZ
] * (1.0 / vmesa
->depth_max
);
739 static void viaViewport(GLcontext
*ctx
,
741 GLsizei width
, GLsizei height
)
743 viaCalcViewport(ctx
);
746 static void viaDepthRange(GLcontext
*ctx
,
747 GLclampd nearval
, GLclampd farval
)
749 viaCalcViewport(ctx
);
752 void viaInitState(GLcontext
*ctx
)
754 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
756 vmesa
->regCmdB
= HC_ACMD_HCmdB
;
757 vmesa
->regEnable
= HC_HenCW_MASK
;
759 /* Mesa should do this for us:
762 ctx
->Driver
.BlendEquationSeparate( ctx
,
763 ctx
->Color
.BlendEquationRGB
,
764 ctx
->Color
.BlendEquationA
);
766 ctx
->Driver
.BlendFuncSeparate( ctx
,
767 ctx
->Color
.BlendSrcRGB
,
768 ctx
->Color
.BlendDstRGB
,
769 ctx
->Color
.BlendSrcA
,
770 ctx
->Color
.BlendDstA
);
772 ctx
->Driver
.Scissor( ctx
, ctx
->Scissor
.X
, ctx
->Scissor
.Y
,
773 ctx
->Scissor
.Width
, ctx
->Scissor
.Height
);
775 ctx
->Driver
.DrawBuffer( ctx
, ctx
->Color
.DrawBuffer
[0] );
779 * Convert S and T texture coordinate wrap modes to hardware bits.
782 get_wrap_mode( GLenum sWrap
, GLenum tWrap
)
789 v
|= HC_HTXnMPMD_Srepeat
;
792 case GL_CLAMP_TO_EDGE
:
793 v
|= HC_HTXnMPMD_Sclamp
;
795 case GL_MIRRORED_REPEAT
:
796 v
|= HC_HTXnMPMD_Smirror
;
802 v
|= HC_HTXnMPMD_Trepeat
;
805 case GL_CLAMP_TO_EDGE
:
806 v
|= HC_HTXnMPMD_Tclamp
;
808 case GL_MIRRORED_REPEAT
:
809 v
|= HC_HTXnMPMD_Tmirror
;
817 get_minmag_filter( GLenum min
, GLenum mag
)
823 v
= HC_HTXnFLSs_Nearest
|
827 v
= HC_HTXnFLSs_Linear
|
830 case GL_NEAREST_MIPMAP_NEAREST
:
831 v
= HC_HTXnFLSs_Nearest
|
833 v
|= HC_HTXnFLDs_Nearest
;
835 case GL_LINEAR_MIPMAP_NEAREST
:
836 v
= HC_HTXnFLSs_Linear
|
838 v
|= HC_HTXnFLDs_Nearest
;
840 case GL_NEAREST_MIPMAP_LINEAR
:
841 v
= HC_HTXnFLSs_Nearest
|
843 v
|= HC_HTXnFLDs_Linear
;
845 case GL_LINEAR_MIPMAP_LINEAR
:
846 v
= HC_HTXnFLSs_Linear
|
848 v
|= HC_HTXnFLDs_Linear
;
856 v
|= HC_HTXnFLSe_Linear
|
860 v
|= HC_HTXnFLSe_Nearest
|
871 static GLboolean
viaChooseTextureState(GLcontext
*ctx
)
873 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
874 struct gl_texture_unit
*texUnit0
= &ctx
->Texture
.Unit
[0];
875 struct gl_texture_unit
*texUnit1
= &ctx
->Texture
.Unit
[1];
877 if (texUnit0
->_ReallyEnabled
|| texUnit1
->_ReallyEnabled
) {
878 vmesa
->regEnable
|= HC_HenTXMP_MASK
| HC_HenTXCH_MASK
| HC_HenTXPP_MASK
;
880 if (texUnit0
->_ReallyEnabled
) {
881 struct gl_texture_object
*texObj
= texUnit0
->_Current
;
883 vmesa
->regHTXnTB
[0] = get_minmag_filter( texObj
->MinFilter
,
886 vmesa
->regHTXnMPMD
[0] &= ~(HC_HTXnMPMD_SMASK
| HC_HTXnMPMD_TMASK
);
887 vmesa
->regHTXnMPMD
[0] |= get_wrap_mode( texObj
->WrapS
,
890 vmesa
->regHTXnTB
[0] &= ~(HC_HTXnTB_TBC_S
| HC_HTXnTB_TBC_T
);
891 if (texObj
->Image
[0][texObj
->BaseLevel
]->Border
> 0) {
892 vmesa
->regHTXnTB
[0] |= (HC_HTXnTB_TBC_S
| HC_HTXnTB_TBC_T
);
893 vmesa
->regHTXnTBC
[0] =
894 PACK_COLOR_888(FLOAT_TO_UBYTE(texObj
->BorderColor
[0]),
895 FLOAT_TO_UBYTE(texObj
->BorderColor
[1]),
896 FLOAT_TO_UBYTE(texObj
->BorderColor
[2]));
897 vmesa
->regHTXnTRAH
[0] = FLOAT_TO_UBYTE(texObj
->BorderColor
[3]);
900 if (texUnit0
->LodBias
!= 0.0f
) {
901 GLuint b
= viaComputeLodBias(texUnit0
->LodBias
);
902 vmesa
->regHTXnTB
[0] &= ~HC_HTXnFLDs_MASK
;
903 vmesa
->regHTXnTB
[0] |= HC_HTXnFLDs_ConstLOD
;
904 vmesa
->regHTXnCLOD
[0] = (b
&0x1f) | (((~b
)&0x1f)<<10); /* FIXME */
907 if (!viaTexCombineState( vmesa
, texUnit0
->_CurrentCombine
, 0 )) {
908 if (VIA_DEBUG
& DEBUG_TEXTURE
)
909 fprintf(stderr
, "viaTexCombineState failed for unit 0\n");
914 if (texUnit1
->_ReallyEnabled
) {
915 struct gl_texture_object
*texObj
= texUnit1
->_Current
;
917 vmesa
->regHTXnTB
[1] = get_minmag_filter( texObj
->MinFilter
,
919 vmesa
->regHTXnMPMD
[1] &= ~(HC_HTXnMPMD_SMASK
| HC_HTXnMPMD_TMASK
);
920 vmesa
->regHTXnMPMD
[1] |= get_wrap_mode( texObj
->WrapS
,
923 vmesa
->regHTXnTB
[1] &= ~(HC_HTXnTB_TBC_S
| HC_HTXnTB_TBC_T
);
924 if (texObj
->Image
[0][texObj
->BaseLevel
]->Border
> 0) {
925 vmesa
->regHTXnTB
[1] |= (HC_HTXnTB_TBC_S
| HC_HTXnTB_TBC_T
);
926 vmesa
->regHTXnTBC
[1] =
927 PACK_COLOR_888(FLOAT_TO_UBYTE(texObj
->BorderColor
[0]),
928 FLOAT_TO_UBYTE(texObj
->BorderColor
[1]),
929 FLOAT_TO_UBYTE(texObj
->BorderColor
[2]));
930 vmesa
->regHTXnTRAH
[1] = FLOAT_TO_UBYTE(texObj
->BorderColor
[3]);
934 if (texUnit1
->LodBias
!= 0.0f
) {
935 GLuint b
= viaComputeLodBias(texUnit1
->LodBias
);
936 vmesa
->regHTXnTB
[1] &= ~HC_HTXnFLDs_MASK
;
937 vmesa
->regHTXnTB
[1] |= HC_HTXnFLDs_ConstLOD
;
938 vmesa
->regHTXnCLOD
[1] = (b
&0x1f) | (((~b
)&0x1f)<<10); /* FIXME */
941 if (!viaTexCombineState( vmesa
, texUnit1
->_CurrentCombine
, 1 )) {
942 if (VIA_DEBUG
& DEBUG_TEXTURE
)
943 fprintf(stderr
, "viaTexCombineState failed for unit 1\n");
949 vmesa
->regEnable
&= ~(HC_HenTXMP_MASK
| HC_HenTXCH_MASK
|
956 static void viaChooseColorState(GLcontext
*ctx
)
958 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
959 GLenum s
= ctx
->Color
.BlendSrcRGB
;
960 GLenum d
= ctx
->Color
.BlendDstRGB
;
962 /* The HW's blending equation is:
963 * (Ca * FCa + Cbias + Cb * FCb) << Cshift
966 if (ctx
->Color
.BlendEnabled
) {
967 vmesa
->regEnable
|= HC_HenABL_MASK
;
968 /* Ca -- always from source color.
970 vmesa
->regHABLCsat
= HC_HABLCsat_MASK
| HC_HABLCa_OPC
| HC_HABLCa_Csrc
;
971 /* Aa -- always from source alpha.
973 vmesa
->regHABLAsat
= HC_HABLAsat_MASK
| HC_HABLAa_OPA
| HC_HABLAa_Asrc
;
974 /* FCa -- depend on following condition.
975 * FAa -- depend on following condition.
981 vmesa
->regHABLCsat
|= HC_HABLFCa_OPC
| HC_HABLFCa_HABLRCa
;
982 vmesa
->regHABLAsat
|= HC_HABLFAa_OPA
| HC_HABLFAa_HABLFRA
;
983 vmesa
->regHABLRFCa
= 0x0;
984 vmesa
->regHABLRAa
= 0x0;
989 vmesa
->regHABLCsat
|= HC_HABLFCa_InvOPC
| HC_HABLFCa_HABLRCa
;
990 vmesa
->regHABLAsat
|= HC_HABLFAa_InvOPA
| HC_HABLFAa_HABLFRA
;
991 vmesa
->regHABLRFCa
= 0x0;
992 vmesa
->regHABLRAa
= 0x0;
997 vmesa
->regHABLCsat
|= HC_HABLFCa_OPC
| HC_HABLFCa_Csrc
;
998 vmesa
->regHABLAsat
|= HC_HABLFAa_OPA
| HC_HABLFAa_Asrc
;
1000 case GL_ONE_MINUS_SRC_COLOR
:
1001 /* (1, 1, 1, 1) - (Rs, Gs, Bs, As)
1003 vmesa
->regHABLCsat
|= HC_HABLFCa_InvOPC
| HC_HABLFCa_Csrc
;
1004 vmesa
->regHABLAsat
|= HC_HABLFAa_InvOPA
| HC_HABLFAa_Asrc
;
1009 vmesa
->regHABLCsat
|= HC_HABLFCa_OPC
| HC_HABLFCa_Cdst
;
1010 vmesa
->regHABLAsat
|= HC_HABLFAa_OPA
| HC_HABLFAa_Adst
;
1012 case GL_ONE_MINUS_DST_COLOR
:
1013 /* (1, 1, 1, 1) - (Rd, Gd, Bd, Ad)
1015 vmesa
->regHABLCsat
|= HC_HABLFCa_InvOPC
| HC_HABLFCa_Cdst
;
1016 vmesa
->regHABLAsat
|= HC_HABLFAa_InvOPA
| HC_HABLFAa_Adst
;
1021 vmesa
->regHABLCsat
|= HC_HABLFCa_OPC
| HC_HABLFCa_Asrc
;
1022 vmesa
->regHABLAsat
|= HC_HABLFAa_OPA
| HC_HABLFAa_Asrc
;
1024 case GL_ONE_MINUS_SRC_ALPHA
:
1025 /* (1, 1, 1, 1) - (As, As, As, As)
1027 vmesa
->regHABLCsat
|= HC_HABLFCa_InvOPC
| HC_HABLFCa_Asrc
;
1028 vmesa
->regHABLAsat
|= HC_HABLFAa_InvOPA
| HC_HABLFAa_Asrc
;
1032 if (vmesa
->viaScreen
->bitsPerPixel
== 16) {
1035 vmesa
->regHABLCsat
|= (HC_HABLFCa_InvOPC
|
1036 HC_HABLFCa_HABLRCa
);
1037 vmesa
->regHABLAsat
|= (HC_HABLFAa_InvOPA
|
1038 HC_HABLFAa_HABLFRA
);
1039 vmesa
->regHABLRFCa
= 0x0;
1040 vmesa
->regHABLRAa
= 0x0;
1045 vmesa
->regHABLCsat
|= HC_HABLFCa_OPC
| HC_HABLFCa_Adst
;
1046 vmesa
->regHABLAsat
|= HC_HABLFAa_OPA
| HC_HABLFAa_Adst
;
1050 case GL_ONE_MINUS_DST_ALPHA
:
1052 if (vmesa
->viaScreen
->bitsPerPixel
== 16) {
1053 /* (1, 1, 1, 1) - (1, 1, 1, 1) = (0, 0, 0, 0)
1055 vmesa
->regHABLCsat
|= HC_HABLFCa_OPC
| HC_HABLFCa_HABLRCa
;
1056 vmesa
->regHABLAsat
|= HC_HABLFAa_OPA
| HC_HABLFAa_HABLFRA
;
1057 vmesa
->regHABLRFCa
= 0x0;
1058 vmesa
->regHABLRAa
= 0x0;
1061 /* (1, 1, 1, 1) - (Ad, Ad, Ad, Ad)
1063 vmesa
->regHABLCsat
|= HC_HABLFCa_InvOPC
| HC_HABLFCa_Adst
;
1064 vmesa
->regHABLAsat
|= HC_HABLFAa_InvOPA
| HC_HABLFAa_Adst
;
1068 case GL_SRC_ALPHA_SATURATE
:
1070 if (vmesa
->viaScreen
->bitsPerPixel
== 16) {
1071 /* (f, f, f, 1), f = min(As, 1 - Ad) = min(As, 1 - 1) = 0
1072 * So (f, f, f, 1) = (0, 0, 0, 1)
1074 vmesa
->regHABLCsat
|= HC_HABLFCa_OPC
| HC_HABLFCa_HABLRCa
;
1075 vmesa
->regHABLAsat
|= (HC_HABLFAa_InvOPA
|
1076 HC_HABLFAa_HABLFRA
);
1077 vmesa
->regHABLRFCa
= 0x0;
1078 vmesa
->regHABLRAa
= 0x0;
1081 /* (f, f, f, 1), f = min(As, 1 - Ad)
1083 vmesa
->regHABLCsat
|= (HC_HABLFCa_OPC
|
1084 HC_HABLFCa_mimAsrcInvAdst
);
1085 vmesa
->regHABLAsat
|= (HC_HABLFAa_InvOPA
|
1086 HC_HABLFAa_HABLFRA
);
1087 vmesa
->regHABLRFCa
= 0x0;
1088 vmesa
->regHABLRAa
= 0x0;
1099 vmesa
->regHABLCsat
|= HC_HABLCbias_HABLRCbias
;
1100 vmesa
->regHABLAsat
|= HC_HABLAbias_HABLRAbias
;
1102 /* Cb -- always from destination color.
1104 vmesa
->regHABLCop
= HC_HABLCb_OPC
| HC_HABLCb_Cdst
;
1105 /* Ab -- always from destination alpha.
1107 vmesa
->regHABLAop
= HC_HABLAb_OPA
| HC_HABLAb_Adst
;
1108 /* FCb -- depend on following condition.
1114 vmesa
->regHABLCop
|= HC_HABLFCb_OPC
| HC_HABLFCb_HABLRCb
;
1115 vmesa
->regHABLAop
|= HC_HABLFAb_OPA
| HC_HABLFAb_HABLFRA
;
1116 vmesa
->regHABLRFCb
= 0x0;
1117 vmesa
->regHABLRAb
= 0x0;
1122 vmesa
->regHABLCop
|= HC_HABLFCb_InvOPC
| HC_HABLFCb_HABLRCb
;
1123 vmesa
->regHABLAop
|= HC_HABLFAb_InvOPA
| HC_HABLFAb_HABLFRA
;
1124 vmesa
->regHABLRFCb
= 0x0;
1125 vmesa
->regHABLRAb
= 0x0;
1130 vmesa
->regHABLCop
|= HC_HABLFCb_OPC
| HC_HABLFCb_Csrc
;
1131 vmesa
->regHABLAop
|= HC_HABLFAb_OPA
| HC_HABLFAb_Asrc
;
1133 case GL_ONE_MINUS_SRC_COLOR
:
1134 /* (1, 1, 1, 1) - (Rs, Gs, Bs, As)
1136 vmesa
->regHABLCop
|= HC_HABLFCb_InvOPC
| HC_HABLFCb_Csrc
;
1137 vmesa
->regHABLAop
|= HC_HABLFAb_InvOPA
| HC_HABLFAb_Asrc
;
1142 vmesa
->regHABLCop
|= HC_HABLFCb_OPC
| HC_HABLFCb_Cdst
;
1143 vmesa
->regHABLAop
|= HC_HABLFAb_OPA
| HC_HABLFAb_Adst
;
1145 case GL_ONE_MINUS_DST_COLOR
:
1146 /* (1, 1, 1, 1) - (Rd, Gd, Bd, Ad)
1148 vmesa
->regHABLCop
|= HC_HABLFCb_InvOPC
| HC_HABLFCb_Cdst
;
1149 vmesa
->regHABLAop
|= HC_HABLFAb_InvOPA
| HC_HABLFAb_Adst
;
1154 vmesa
->regHABLCop
|= HC_HABLFCb_OPC
| HC_HABLFCb_Asrc
;
1155 vmesa
->regHABLAop
|= HC_HABLFAb_OPA
| HC_HABLFAb_Asrc
;
1157 case GL_ONE_MINUS_SRC_ALPHA
:
1158 /* (1, 1, 1, 1) - (As, As, As, As)
1160 vmesa
->regHABLCop
|= HC_HABLFCb_InvOPC
| HC_HABLFCb_Asrc
;
1161 vmesa
->regHABLAop
|= HC_HABLFAb_InvOPA
| HC_HABLFAb_Asrc
;
1165 if (vmesa
->viaScreen
->bitsPerPixel
== 16) {
1168 vmesa
->regHABLCop
|= HC_HABLFCb_InvOPC
| HC_HABLFCb_HABLRCb
;
1169 vmesa
->regHABLAop
|= HC_HABLFAb_InvOPA
| HC_HABLFAb_HABLFRA
;
1170 vmesa
->regHABLRFCb
= 0x0;
1171 vmesa
->regHABLRAb
= 0x0;
1176 vmesa
->regHABLCop
|= HC_HABLFCb_OPC
| HC_HABLFCb_Adst
;
1177 vmesa
->regHABLAop
|= HC_HABLFAb_OPA
| HC_HABLFAb_Adst
;
1181 case GL_ONE_MINUS_DST_ALPHA
:
1183 if (vmesa
->viaScreen
->bitsPerPixel
== 16) {
1184 /* (1, 1, 1, 1) - (1, 1, 1, 1) = (0, 0, 0, 0)
1186 vmesa
->regHABLCop
|= HC_HABLFCb_OPC
| HC_HABLFCb_HABLRCb
;
1187 vmesa
->regHABLAop
|= HC_HABLFAb_OPA
| HC_HABLFAb_HABLFRA
;
1188 vmesa
->regHABLRFCb
= 0x0;
1189 vmesa
->regHABLRAb
= 0x0;
1192 /* (1, 1, 1, 1) - (Ad, Ad, Ad, Ad)
1194 vmesa
->regHABLCop
|= HC_HABLFCb_InvOPC
| HC_HABLFCb_Adst
;
1195 vmesa
->regHABLAop
|= HC_HABLFAb_InvOPA
| HC_HABLFAb_Adst
;
1200 vmesa
->regHABLCop
|= HC_HABLFCb_OPC
| HC_HABLFCb_HABLRCb
;
1201 vmesa
->regHABLAop
|= HC_HABLFAb_OPA
| HC_HABLFAb_HABLFRA
;
1202 vmesa
->regHABLRFCb
= 0x0;
1203 vmesa
->regHABLRAb
= 0x0;
1207 if (vmesa
->viaScreen
->bitsPerPixel
<= 16)
1208 vmesa
->regEnable
&= ~HC_HenDT_MASK
;
1212 vmesa
->regEnable
&= (~HC_HenABL_MASK
);
1215 if (ctx
->Color
.AlphaEnabled
) {
1216 vmesa
->regEnable
|= HC_HenAT_MASK
;
1217 vmesa
->regHATMD
= FLOAT_TO_UBYTE(ctx
->Color
.AlphaRef
) |
1218 ((ctx
->Color
.AlphaFunc
- GL_NEVER
) << 8);
1221 vmesa
->regEnable
&= (~HC_HenAT_MASK
);
1224 if (ctx
->Color
.DitherFlag
&& (vmesa
->viaScreen
->bitsPerPixel
< 32)) {
1225 if (ctx
->Color
.BlendEnabled
) {
1226 vmesa
->regEnable
&= ~HC_HenDT_MASK
;
1229 vmesa
->regEnable
|= HC_HenDT_MASK
;
1234 vmesa
->regEnable
&= ~HC_HenDT_MASK
;
1236 if (ctx
->Color
.ColorLogicOpEnabled
)
1237 vmesa
->regHROP
= ROP
[ctx
->Color
.LogicOp
& 0xF];
1239 vmesa
->regHROP
= HC_HROP_P
;
1241 vmesa
->regHFBBMSKL
= PACK_COLOR_888(ctx
->Color
.ColorMask
[0],
1242 ctx
->Color
.ColorMask
[1],
1243 ctx
->Color
.ColorMask
[2]);
1244 vmesa
->regHROP
|= ctx
->Color
.ColorMask
[3];
1246 if (ctx
->Color
.ColorMask
[3])
1247 vmesa
->regEnable
|= HC_HenAW_MASK
;
1249 vmesa
->regEnable
&= ~HC_HenAW_MASK
;
1252 static void viaChooseFogState(GLcontext
*ctx
)
1254 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
1256 if (ctx
->Fog
.Enabled
) {
1259 vmesa
->regEnable
|= HC_HenFOG_MASK
;
1261 /* Use fog equation 0 (OpenGL's default) & local fog.
1263 vmesa
->regHFogLF
= 0x0;
1265 r
= (GLubyte
)(ctx
->Fog
.Color
[0] * 255.0F
);
1266 g
= (GLubyte
)(ctx
->Fog
.Color
[1] * 255.0F
);
1267 b
= (GLubyte
)(ctx
->Fog
.Color
[2] * 255.0F
);
1268 a
= (GLubyte
)(ctx
->Fog
.Color
[3] * 255.0F
);
1269 vmesa
->regHFogCL
= (r
<< 16) | (g
<< 8) | b
;
1270 vmesa
->regHFogCH
= a
;
1273 vmesa
->regEnable
&= ~HC_HenFOG_MASK
;
1277 static void viaChooseDepthState(GLcontext
*ctx
)
1279 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
1280 if (ctx
->Depth
.Test
) {
1281 vmesa
->regEnable
|= HC_HenZT_MASK
;
1282 if (ctx
->Depth
.Mask
)
1283 vmesa
->regEnable
|= HC_HenZW_MASK
;
1285 vmesa
->regEnable
&= (~HC_HenZW_MASK
);
1286 vmesa
->regHZWTMD
= (ctx
->Depth
.Func
- GL_NEVER
) << 16;
1290 vmesa
->regEnable
&= ~HC_HenZT_MASK
;
1292 /*=* [DBG] racer : can't display cars in car selection menu *=*/
1293 /*if (ctx->Depth.Mask)
1294 vmesa->regEnable |= HC_HenZW_MASK;
1296 vmesa->regEnable &= (~HC_HenZW_MASK);*/
1297 vmesa
->regEnable
&= (~HC_HenZW_MASK
);
1301 static void viaChooseLineState(GLcontext
*ctx
)
1303 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
1305 if (ctx
->Line
.StippleFlag
) {
1306 vmesa
->regEnable
|= HC_HenLP_MASK
;
1307 vmesa
->regHLP
= ctx
->Line
.StipplePattern
;
1308 vmesa
->regHLPRF
= ctx
->Line
.StippleFactor
;
1311 vmesa
->regEnable
&= ~HC_HenLP_MASK
;
1315 static void viaChoosePolygonState(GLcontext
*ctx
)
1317 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
1320 /* Polygon stipple is broken - see via_state.c
1322 if (ctx
->Polygon
.StippleFlag
) {
1323 vmesa
->regEnable
|= HC_HenSP_MASK
;
1326 vmesa
->regEnable
&= ~HC_HenSP_MASK
;
1329 FALLBACK(vmesa
, VIA_FALLBACK_POLY_STIPPLE
,
1330 ctx
->Polygon
.StippleFlag
);
1333 if (ctx
->Polygon
.CullFlag
) {
1334 vmesa
->regEnable
|= HC_HenFBCull_MASK
;
1337 vmesa
->regEnable
&= ~HC_HenFBCull_MASK
;
1341 static void viaChooseStencilState(GLcontext
*ctx
)
1343 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
1345 if (ctx
->Stencil
.Enabled
) {
1348 vmesa
->regEnable
|= HC_HenST_MASK
;
1349 temp
= (ctx
->Stencil
.Ref
[0] & 0xFF) << HC_HSTREF_SHIFT
;
1350 temp
|= 0xFF << HC_HSTOPMSK_SHIFT
;
1351 temp
|= (ctx
->Stencil
.ValueMask
[0] & 0xFF);
1352 vmesa
->regHSTREF
= temp
;
1354 temp
= (ctx
->Stencil
.Function
[0] - GL_NEVER
) << 16;
1356 switch (ctx
->Stencil
.FailFunc
[0]) {
1358 temp
|= HC_HSTOPSF_KEEP
;
1361 temp
|= HC_HSTOPSF_ZERO
;
1364 temp
|= HC_HSTOPSF_REPLACE
;
1367 temp
|= HC_HSTOPSF_INVERT
;
1370 temp
|= HC_HSTOPSF_INCR
;
1373 temp
|= HC_HSTOPSF_DECR
;
1377 switch (ctx
->Stencil
.ZFailFunc
[0]) {
1379 temp
|= HC_HSTOPSPZF_KEEP
;
1382 temp
|= HC_HSTOPSPZF_ZERO
;
1385 temp
|= HC_HSTOPSPZF_REPLACE
;
1388 temp
|= HC_HSTOPSPZF_INVERT
;
1391 temp
|= HC_HSTOPSPZF_INCR
;
1394 temp
|= HC_HSTOPSPZF_DECR
;
1398 switch (ctx
->Stencil
.ZPassFunc
[0]) {
1400 temp
|= HC_HSTOPSPZP_KEEP
;
1403 temp
|= HC_HSTOPSPZP_ZERO
;
1406 temp
|= HC_HSTOPSPZP_REPLACE
;
1409 temp
|= HC_HSTOPSPZP_INVERT
;
1412 temp
|= HC_HSTOPSPZP_INCR
;
1415 temp
|= HC_HSTOPSPZP_DECR
;
1418 vmesa
->regHSTMD
= temp
;
1421 vmesa
->regEnable
&= ~HC_HenST_MASK
;
1427 static void viaChooseTriangle(GLcontext
*ctx
)
1429 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
1431 if (ctx
->Polygon
.CullFlag
== GL_TRUE
) {
1432 switch (ctx
->Polygon
.CullFaceMode
) {
1434 if (ctx
->Polygon
.FrontFace
== GL_CCW
)
1435 vmesa
->regCmdB
|= HC_HBFace_MASK
;
1437 vmesa
->regCmdB
&= ~HC_HBFace_MASK
;
1440 if (ctx
->Polygon
.FrontFace
== GL_CW
)
1441 vmesa
->regCmdB
|= HC_HBFace_MASK
;
1443 vmesa
->regCmdB
&= ~HC_HBFace_MASK
;
1445 case GL_FRONT_AND_BACK
:
1451 void viaValidateState( GLcontext
*ctx
)
1453 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
1455 if (vmesa
->newState
& _NEW_TEXTURE
) {
1456 GLboolean ok
= (viaChooseTextureState(ctx
) &&
1457 viaUpdateTextureState(ctx
));
1459 FALLBACK(vmesa
, VIA_FALLBACK_TEXTURE
, !ok
);
1462 if (vmesa
->newState
& _NEW_COLOR
)
1463 viaChooseColorState(ctx
);
1465 if (vmesa
->newState
& _NEW_DEPTH
)
1466 viaChooseDepthState(ctx
);
1468 if (vmesa
->newState
& _NEW_FOG
)
1469 viaChooseFogState(ctx
);
1471 if (vmesa
->newState
& _NEW_LINE
)
1472 viaChooseLineState(ctx
);
1474 if (vmesa
->newState
& (_NEW_POLYGON
| _NEW_POLYGONSTIPPLE
)) {
1475 viaChoosePolygonState(ctx
);
1476 viaChooseTriangle(ctx
);
1479 if ((vmesa
->newState
& _NEW_STENCIL
) && vmesa
->have_hw_stencil
)
1480 viaChooseStencilState(ctx
);
1482 if (ctx
->_TriangleCaps
& DD_SEPARATE_SPECULAR
)
1483 vmesa
->regEnable
|= HC_HenCS_MASK
;
1485 vmesa
->regEnable
&= ~HC_HenCS_MASK
;
1487 if (ctx
->Point
.SmoothFlag
||
1488 ctx
->Line
.SmoothFlag
||
1489 ctx
->Polygon
.SmoothFlag
)
1490 vmesa
->regEnable
|= HC_HenAA_MASK
;
1492 vmesa
->regEnable
&= ~HC_HenAA_MASK
;
1494 vmesa
->newEmitState
|= vmesa
->newState
;
1495 vmesa
->newState
= 0;
1498 static void viaInvalidateState(GLcontext
*ctx
, GLuint newState
)
1500 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
1502 VIA_FINISH_PRIM( vmesa
);
1503 vmesa
->newState
|= newState
;
1505 _swrast_InvalidateState(ctx
, newState
);
1506 _swsetup_InvalidateState(ctx
, newState
);
1507 _vbo_InvalidateState(ctx
, newState
);
1508 _tnl_InvalidateState(ctx
, newState
);
1511 void viaInitStateFuncs(GLcontext
*ctx
)
1513 /* Callbacks for internal Mesa events.
1515 ctx
->Driver
.UpdateState
= viaInvalidateState
;
1519 ctx
->Driver
.BlendEquationSeparate
= viaBlendEquationSeparate
;
1520 ctx
->Driver
.BlendFuncSeparate
= viaBlendFuncSeparate
;
1521 ctx
->Driver
.ClearColor
= viaClearColor
;
1522 ctx
->Driver
.ColorMask
= viaColorMask
;
1523 ctx
->Driver
.DrawBuffer
= viaDrawBuffer
;
1524 ctx
->Driver
.RenderMode
= viaRenderMode
;
1525 ctx
->Driver
.Scissor
= viaScissor
;
1526 ctx
->Driver
.DepthRange
= viaDepthRange
;
1527 ctx
->Driver
.Viewport
= viaViewport
;
1528 ctx
->Driver
.Enable
= viaEnable
;
1530 /* XXX this should go away */
1531 ctx
->Driver
.ResizeBuffers
= viaReAllocateBuffers
;