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.
27 #include "main/glheader.h"
28 #include "main/context.h"
29 #include "main/macros.h"
30 #include "main/colormac.h"
31 #include "main/enums.h"
35 #include "via_context.h"
36 #include "via_state.h"
38 #include "via_ioctl.h"
39 #include "via_3d_reg.h"
41 #include "swrast/swrast.h"
44 #include "swrast_setup/swrast_setup.h"
47 static GLuint ROP
[16] = {
48 HC_HROP_BLACK
, /* GL_CLEAR 0 */
49 HC_HROP_DPa
, /* GL_AND s & d */
50 HC_HROP_PDna
, /* GL_AND_REVERSE s & ~d */
51 HC_HROP_P
, /* GL_COPY s */
52 HC_HROP_DPna
, /* GL_AND_INVERTED ~s & d */
53 HC_HROP_D
, /* GL_NOOP d */
54 HC_HROP_DPx
, /* GL_XOR s ^ d */
55 HC_HROP_DPo
, /* GL_OR s | d */
56 HC_HROP_DPon
, /* GL_NOR ~(s | d) */
57 HC_HROP_DPxn
, /* GL_EQUIV ~(s ^ d) */
58 HC_HROP_Dn
, /* GL_INVERT ~d */
59 HC_HROP_PDno
, /* GL_OR_REVERSE s | ~d */
60 HC_HROP_Pn
, /* GL_COPY_INVERTED ~s */
61 HC_HROP_DPno
, /* GL_OR_INVERTED ~s | d */
62 HC_HROP_DPan
, /* GL_NAND ~(s & d) */
63 HC_HROP_WHITE
/* GL_SET 1 */
67 * Compute the 'S5.5' lod bias factor from the floating point OpenGL bias.
69 static GLuint
viaComputeLodBias(GLfloat bias
)
71 int b
= (int) (bias
* 32.0);
79 void viaEmitState(struct via_context
*vmesa
)
81 GLcontext
*ctx
= vmesa
->glCtx
;
86 viaCheckDma(vmesa
, 0x110);
89 OUT_RING( HC_HEADER2
);
90 OUT_RING( (HC_ParaType_NotTex
<< 16) );
91 OUT_RING( ((HC_SubA_HEnable
<< 24) | vmesa
->regEnable
) );
92 OUT_RING( ((HC_SubA_HFBBMSKL
<< 24) | vmesa
->regHFBBMSKL
) );
93 OUT_RING( ((HC_SubA_HROP
<< 24) | vmesa
->regHROP
) );
96 if (vmesa
->have_hw_stencil
) {
97 GLuint pitch
, format
, offset
;
99 format
= HC_HZWBFM_24
;
100 offset
= vmesa
->depth
.offset
;
101 pitch
= vmesa
->depth
.pitch
;
104 OUT_RING( (HC_SubA_HZWBBasL
<< 24) | (offset
& 0xFFFFFF) );
105 OUT_RING( (HC_SubA_HZWBBasH
<< 24) | ((offset
& 0xFF000000) >> 24) );
106 OUT_RING( (HC_SubA_HZWBType
<< 24) | HC_HDBLoc_Local
| HC_HZONEasFF_MASK
|
108 OUT_RING( (HC_SubA_HZWTMD
<< 24) | vmesa
->regHZWTMD
);
109 OUT_RING( (HC_SubA_HSTREF
<< 24) | vmesa
->regHSTREF
);
110 OUT_RING( (HC_SubA_HSTMD
<< 24) | vmesa
->regHSTMD
);
113 else if (vmesa
->hasDepth
) {
114 GLuint pitch
, format
, offset
;
116 if (vmesa
->depthBits
== 16) {
117 format
= HC_HZWBFM_16
;
120 format
= HC_HZWBFM_32
;
124 offset
= vmesa
->depth
.offset
;
125 pitch
= vmesa
->depth
.pitch
;
128 OUT_RING( (HC_SubA_HZWBBasL
<< 24) | (offset
& 0xFFFFFF) );
129 OUT_RING( (HC_SubA_HZWBBasH
<< 24) | ((offset
& 0xFF000000) >> 24) );
130 OUT_RING( (HC_SubA_HZWBType
<< 24) | HC_HDBLoc_Local
| HC_HZONEasFF_MASK
|
132 OUT_RING( (HC_SubA_HZWTMD
<< 24) | vmesa
->regHZWTMD
);
136 if (ctx
->Color
.AlphaEnabled
) {
138 OUT_RING( (HC_SubA_HATMD
<< 24) | vmesa
->regHATMD
);
143 if (ctx
->Color
.BlendEnabled
) {
145 OUT_RING( (HC_SubA_HABLCsat
<< 24) | vmesa
->regHABLCsat
);
146 OUT_RING( (HC_SubA_HABLCop
<< 24) | vmesa
->regHABLCop
);
147 OUT_RING( (HC_SubA_HABLAsat
<< 24) | vmesa
->regHABLAsat
);
148 OUT_RING( (HC_SubA_HABLAop
<< 24) | vmesa
->regHABLAop
);
149 OUT_RING( (HC_SubA_HABLRCa
<< 24) | vmesa
->regHABLRCa
);
150 OUT_RING( (HC_SubA_HABLRFCa
<< 24) | vmesa
->regHABLRFCa
);
151 OUT_RING( (HC_SubA_HABLRCbias
<< 24) | vmesa
->regHABLRCbias
);
152 OUT_RING( (HC_SubA_HABLRCb
<< 24) | vmesa
->regHABLRCb
);
153 OUT_RING( (HC_SubA_HABLRFCb
<< 24) | vmesa
->regHABLRFCb
);
154 OUT_RING( (HC_SubA_HABLRAa
<< 24) | vmesa
->regHABLRAa
);
155 OUT_RING( (HC_SubA_HABLRAb
<< 24) | vmesa
->regHABLRAb
);
159 if (ctx
->Fog
.Enabled
) {
161 OUT_RING( (HC_SubA_HFogLF
<< 24) | vmesa
->regHFogLF
);
162 OUT_RING( (HC_SubA_HFogCL
<< 24) | vmesa
->regHFogCL
);
163 OUT_RING( (HC_SubA_HFogCH
<< 24) | vmesa
->regHFogCH
);
167 if (ctx
->Line
.StippleFlag
) {
169 OUT_RING( (HC_SubA_HLP
<< 24) | ctx
->Line
.StipplePattern
);
170 OUT_RING( (HC_SubA_HLPRF
<< 24) | ctx
->Line
.StippleFactor
);
175 OUT_RING( (HC_SubA_HPixGC
<< 24) | 0x0 );
181 if (ctx
->Texture
._EnabledUnits
) {
183 struct gl_texture_unit
*texUnit0
= &ctx
->Texture
.Unit
[0];
184 struct gl_texture_unit
*texUnit1
= &ctx
->Texture
.Unit
[1];
187 GLuint nDummyValue
= 0;
190 OUT_RING( HC_HEADER2
);
191 OUT_RING( (HC_ParaType_Tex
<< 16) | (HC_SubType_TexGeneral
<< 24) );
193 if (texUnit0
->Enabled
&& texUnit1
->Enabled
) {
194 nDummyValue
= (HC_SubA_HTXSMD
<< 24) | (1 << 3);
197 nDummyValue
= (HC_SubA_HTXSMD
<< 24) | 0;
200 if (vmesa
->clearTexCache
) {
201 vmesa
->clearTexCache
= 0;
202 OUT_RING( nDummyValue
| HC_HTXCHCLR_MASK
);
203 OUT_RING( nDummyValue
);
206 OUT_RING( nDummyValue
);
207 OUT_RING( nDummyValue
);
210 OUT_RING( HC_HEADER2
);
211 OUT_RING( HC_ParaType_NotTex
<< 16 );
212 OUT_RING( (HC_SubA_HEnable
<< 24) | vmesa
->regEnable
);
213 OUT_RING( (HC_SubA_HEnable
<< 24) | vmesa
->regEnable
);
217 if (texUnit0
->Enabled
) {
218 struct gl_texture_object
*texObj
= texUnit0
->_Current
;
219 struct via_texture_object
*t
= (struct via_texture_object
*)texObj
;
220 GLuint numLevels
= t
->lastLevel
- t
->firstLevel
+ 1;
221 if (VIA_DEBUG
& DEBUG_STATE
) {
222 fprintf(stderr
, "texture0 enabled\n");
224 if (numLevels
== 8) {
226 OUT_RING( HC_HEADER2
);
227 OUT_RING( (HC_ParaType_Tex
<< 16) | (0 << 24) );
228 OUT_RING( t
->regTexFM
);
229 OUT_RING( (HC_SubA_HTXnL0OS
<< 24) |
230 ((t
->lastLevel
) << HC_HTXnLVmax_SHIFT
) | t
->firstLevel
);
231 OUT_RING( t
->regTexWidthLog2
[0] );
232 OUT_RING( t
->regTexWidthLog2
[1] );
233 OUT_RING( t
->regTexHeightLog2
[0] );
234 OUT_RING( t
->regTexHeightLog2
[1] );
235 OUT_RING( t
->regTexBaseH
[0] );
236 OUT_RING( t
->regTexBaseH
[1] );
237 OUT_RING( t
->regTexBaseH
[2] );
238 OUT_RING( t
->regTexBaseAndPitch
[0].baseL
);
239 OUT_RING( t
->regTexBaseAndPitch
[0].pitchLog2
);
240 OUT_RING( t
->regTexBaseAndPitch
[1].baseL
);
241 OUT_RING( t
->regTexBaseAndPitch
[1].pitchLog2
);
242 OUT_RING( t
->regTexBaseAndPitch
[2].baseL
);
243 OUT_RING( t
->regTexBaseAndPitch
[2].pitchLog2
);
244 OUT_RING( t
->regTexBaseAndPitch
[3].baseL
);
245 OUT_RING( t
->regTexBaseAndPitch
[3].pitchLog2
);
246 OUT_RING( t
->regTexBaseAndPitch
[4].baseL
);
247 OUT_RING( t
->regTexBaseAndPitch
[4].pitchLog2
);
248 OUT_RING( t
->regTexBaseAndPitch
[5].baseL
);
249 OUT_RING( t
->regTexBaseAndPitch
[5].pitchLog2
);
250 OUT_RING( t
->regTexBaseAndPitch
[6].baseL
);
251 OUT_RING( t
->regTexBaseAndPitch
[6].pitchLog2
);
252 OUT_RING( t
->regTexBaseAndPitch
[7].baseL
);
253 OUT_RING( t
->regTexBaseAndPitch
[7].pitchLog2
);
256 else if (numLevels
> 1) {
258 BEGIN_RING(12 + numLevels
* 2);
259 OUT_RING( HC_HEADER2
);
260 OUT_RING( (HC_ParaType_Tex
<< 16) | (0 << 24) );
261 OUT_RING( t
->regTexFM
);
262 OUT_RING( (HC_SubA_HTXnL0OS
<< 24) |
263 ((t
->lastLevel
) << HC_HTXnLVmax_SHIFT
) | t
->firstLevel
);
264 OUT_RING( t
->regTexWidthLog2
[0] );
265 OUT_RING( t
->regTexHeightLog2
[0] );
268 OUT_RING( t
->regTexWidthLog2
[1] );
269 OUT_RING( t
->regTexHeightLog2
[1] );
272 OUT_RING( t
->regTexBaseH
[0] );
275 OUT_RING( t
->regTexBaseH
[1] );
278 OUT_RING( t
->regTexBaseH
[2] );
281 OUT_RING( t
->regTexBaseH
[3] );
284 for (j
= 0; j
< numLevels
; j
++) {
285 OUT_RING( t
->regTexBaseAndPitch
[j
].baseL
);
286 OUT_RING( t
->regTexBaseAndPitch
[j
].pitchLog2
);
289 ADVANCE_RING_VARIABLE();
294 OUT_RING( HC_HEADER2
);
295 OUT_RING( (HC_ParaType_Tex
<< 16) | (0 << 24) );
296 OUT_RING( t
->regTexFM
);
297 OUT_RING( (HC_SubA_HTXnL0OS
<< 24) |
298 ((t
->lastLevel
) << HC_HTXnLVmax_SHIFT
) | t
->firstLevel
);
299 OUT_RING( t
->regTexWidthLog2
[0] );
300 OUT_RING( t
->regTexHeightLog2
[0] );
301 OUT_RING( t
->regTexBaseH
[0] );
302 OUT_RING( t
->regTexBaseAndPitch
[0].baseL
);
303 OUT_RING( t
->regTexBaseAndPitch
[0].pitchLog2
);
308 OUT_RING( (HC_SubA_HTXnTB
<< 24) | vmesa
->regHTXnTB
[0] );
309 OUT_RING( (HC_SubA_HTXnMPMD
<< 24) | vmesa
->regHTXnMPMD
[0] );
310 OUT_RING( (HC_SubA_HTXnTBLCsat
<< 24) | vmesa
->regHTXnTBLCsat
[0] );
311 OUT_RING( (HC_SubA_HTXnTBLCop
<< 24) | vmesa
->regHTXnTBLCop
[0] );
312 OUT_RING( (HC_SubA_HTXnTBLMPfog
<< 24) | vmesa
->regHTXnTBLMPfog
[0] );
313 OUT_RING( (HC_SubA_HTXnTBLAsat
<< 24) | vmesa
->regHTXnTBLAsat
[0] );
314 OUT_RING( (HC_SubA_HTXnTBLRCb
<< 24) | vmesa
->regHTXnTBLRCb
[0] );
315 OUT_RING( (HC_SubA_HTXnTBLRAa
<< 24) | vmesa
->regHTXnTBLRAa
[0] );
316 OUT_RING( (HC_SubA_HTXnTBLRFog
<< 24) | vmesa
->regHTXnTBLRFog
[0] );
317 OUT_RING( (HC_SubA_HTXnTBLRCa
<< 24) | vmesa
->regHTXnTBLRCa
[0] );
318 OUT_RING( (HC_SubA_HTXnTBLRCc
<< 24) | vmesa
->regHTXnTBLRCc
[0] );
319 OUT_RING( (HC_SubA_HTXnTBLRCbias
<< 24) | vmesa
->regHTXnTBLRCbias
[0] );
320 OUT_RING( (HC_SubA_HTXnTBC
<< 24) | vmesa
->regHTXnTBC
[0] );
321 OUT_RING( (HC_SubA_HTXnTRAH
<< 24) | vmesa
->regHTXnTRAH
[0] );
322 /* OUT_RING( (HC_SubA_HTXnCLODu << 24) | vmesa->regHTXnCLOD[0] ); */
325 /* KW: This test never succeeds:
327 if (t
->regTexFM
== HC_HTXnFM_Index8
) {
328 const struct gl_color_table
*table
= &texObj
->Palette
;
329 const GLfloat
*tableF
= table
->TableF
;
331 BEGIN_RING(2 + table
->Size
);
332 OUT_RING( HC_HEADER2
);
333 OUT_RING( (HC_ParaType_Palette
<< 16) | (0 << 24) );
334 for (j
= 0; j
< table
->Size
; j
++)
335 OUT_RING( tableF
[j
] );
343 if (texUnit1
->Enabled
) {
344 struct gl_texture_object
*texObj
= texUnit1
->_Current
;
345 struct via_texture_object
*t
= (struct via_texture_object
*)texObj
;
346 GLuint numLevels
= t
->lastLevel
- t
->firstLevel
+ 1;
347 int texunit
= (texUnit0
->Enabled
? 1 : 0);
348 if (VIA_DEBUG
& DEBUG_STATE
) {
349 fprintf(stderr
, "texture1 enabled\n");
351 if (numLevels
== 8) {
353 OUT_RING( HC_HEADER2
);
354 OUT_RING( (HC_ParaType_Tex
<< 16) | (texunit
<< 24) );
355 OUT_RING( t
->regTexFM
);
356 OUT_RING( (HC_SubA_HTXnL0OS
<< 24) |
357 ((t
->lastLevel
) << HC_HTXnLVmax_SHIFT
) | t
->firstLevel
);
358 OUT_RING( t
->regTexWidthLog2
[0] );
359 OUT_RING( t
->regTexWidthLog2
[1] );
360 OUT_RING( t
->regTexHeightLog2
[0] );
361 OUT_RING( t
->regTexHeightLog2
[1] );
362 OUT_RING( t
->regTexBaseH
[0] );
363 OUT_RING( t
->regTexBaseH
[1] );
364 OUT_RING( t
->regTexBaseH
[2] );
365 OUT_RING( t
->regTexBaseAndPitch
[0].baseL
);
366 OUT_RING( t
->regTexBaseAndPitch
[0].pitchLog2
);
367 OUT_RING( t
->regTexBaseAndPitch
[1].baseL
);
368 OUT_RING( t
->regTexBaseAndPitch
[1].pitchLog2
);
369 OUT_RING( t
->regTexBaseAndPitch
[2].baseL
);
370 OUT_RING( t
->regTexBaseAndPitch
[2].pitchLog2
);
371 OUT_RING( t
->regTexBaseAndPitch
[3].baseL
);
372 OUT_RING( t
->regTexBaseAndPitch
[3].pitchLog2
);
373 OUT_RING( t
->regTexBaseAndPitch
[4].baseL
);
374 OUT_RING( t
->regTexBaseAndPitch
[4].pitchLog2
);
375 OUT_RING( t
->regTexBaseAndPitch
[5].baseL
);
376 OUT_RING( t
->regTexBaseAndPitch
[5].pitchLog2
);
377 OUT_RING( t
->regTexBaseAndPitch
[6].baseL
);
378 OUT_RING( t
->regTexBaseAndPitch
[6].pitchLog2
);
379 OUT_RING( t
->regTexBaseAndPitch
[7].baseL
);
380 OUT_RING( t
->regTexBaseAndPitch
[7].pitchLog2
);
383 else if (numLevels
> 1) {
384 BEGIN_RING(12 + numLevels
* 2);
385 OUT_RING( HC_HEADER2
);
386 OUT_RING( (HC_ParaType_Tex
<< 16) | (texunit
<< 24) );
387 OUT_RING( t
->regTexFM
);
388 OUT_RING( (HC_SubA_HTXnL0OS
<< 24) |
389 ((t
->lastLevel
) << HC_HTXnLVmax_SHIFT
) | t
->firstLevel
);
390 OUT_RING( t
->regTexWidthLog2
[0] );
391 OUT_RING( t
->regTexHeightLog2
[0] );
394 OUT_RING( t
->regTexWidthLog2
[1] );
395 OUT_RING( t
->regTexHeightLog2
[1] );
399 OUT_RING( t
->regTexBaseH
[0] );
402 OUT_RING( t
->regTexBaseH
[1] );
405 OUT_RING( t
->regTexBaseH
[2] );
408 OUT_RING( t
->regTexBaseH
[3] );
411 for (j
= 0; j
< numLevels
; j
++) {
412 OUT_RING( t
->regTexBaseAndPitch
[j
].baseL
);
413 OUT_RING( t
->regTexBaseAndPitch
[j
].pitchLog2
);
415 ADVANCE_RING_VARIABLE();
419 OUT_RING( HC_HEADER2
);
420 OUT_RING( (HC_ParaType_Tex
<< 16) | (texunit
<< 24) );
421 OUT_RING( t
->regTexFM
);
422 OUT_RING( (HC_SubA_HTXnL0OS
<< 24) |
423 ((t
->lastLevel
) << HC_HTXnLVmax_SHIFT
) | t
->firstLevel
);
424 OUT_RING( t
->regTexWidthLog2
[0] );
425 OUT_RING( t
->regTexHeightLog2
[0] );
426 OUT_RING( t
->regTexBaseH
[0] );
427 OUT_RING( t
->regTexBaseAndPitch
[0].baseL
);
428 OUT_RING( t
->regTexBaseAndPitch
[0].pitchLog2
);
433 OUT_RING( (HC_SubA_HTXnTB
<< 24) | vmesa
->regHTXnTB
[1] );
434 OUT_RING( (HC_SubA_HTXnMPMD
<< 24) | vmesa
->regHTXnMPMD
[1] );
435 OUT_RING( (HC_SubA_HTXnTBLCsat
<< 24) | vmesa
->regHTXnTBLCsat
[1] );
436 OUT_RING( (HC_SubA_HTXnTBLCop
<< 24) | vmesa
->regHTXnTBLCop
[1] );
437 OUT_RING( (HC_SubA_HTXnTBLMPfog
<< 24) | vmesa
->regHTXnTBLMPfog
[1] );
438 OUT_RING( (HC_SubA_HTXnTBLAsat
<< 24) | vmesa
->regHTXnTBLAsat
[1] );
439 OUT_RING( (HC_SubA_HTXnTBLRCb
<< 24) | vmesa
->regHTXnTBLRCb
[1] );
440 OUT_RING( (HC_SubA_HTXnTBLRAa
<< 24) | vmesa
->regHTXnTBLRAa
[1] );
441 OUT_RING( (HC_SubA_HTXnTBLRFog
<< 24) | vmesa
->regHTXnTBLRFog
[1] );
442 OUT_RING( (HC_SubA_HTXnTBLRCa
<< 24) | vmesa
->regHTXnTBLRCa
[1] );
443 OUT_RING( (HC_SubA_HTXnTBLRCc
<< 24) | vmesa
->regHTXnTBLRCc
[1] );
444 OUT_RING( (HC_SubA_HTXnTBLRCbias
<< 24) | vmesa
->regHTXnTBLRCbias
[1] );
445 OUT_RING( (HC_SubA_HTXnTBC
<< 24) | vmesa
->regHTXnTBC
[1] );
446 OUT_RING( (HC_SubA_HTXnTRAH
<< 24) | vmesa
->regHTXnTRAH
[1] );
447 /* OUT_RING( (HC_SubA_HTXnCLODu << 24) | vmesa->regHTXnCLOD[1] ); */
450 /* KW: This test never succeeds:
452 if (t
->regTexFM
== HC_HTXnFM_Index8
) {
453 const struct gl_color_table
*table
= &texObj
->Palette
;
454 const GLfloat
*tableF
= table
->TableF
;
456 BEGIN_RING(2 + table
->Size
);
457 OUT_RING( HC_HEADER2
);
458 OUT_RING( (HC_ParaType_Palette
<< 16) | (texunit
<< 24) );
459 for (j
= 0; j
< table
->Size
; j
++) {
460 OUT_RING( tableF
[j
] );
470 /* Polygon stipple is broken - for certain stipple values,
471 * eg. 0xf0f0f0f0, the hardware will refuse to accept the stipple.
472 * Coincidentally, conform generates just such a stipple.
474 if (ctx
->Polygon
.StippleFlag
) {
475 GLuint
*stipple
= &ctx
->PolygonStipple
[0];
476 __DRIdrawable
*dPriv
= vmesa
->driDrawable
;
477 struct via_renderbuffer
*const vrb
=
478 (struct via_renderbuffer
*) dPriv
->driverPrivate
;
482 OUT_RING( HC_HEADER2
);
484 OUT_RING( ((HC_ParaType_Palette
<< 16) | (HC_SubType_Stipple
<< 24)) );
485 for (i
= 31; i
>= 0; i
--) {
489 /* Need to flip bits left to right:
491 for (j
= 0 ; j
< 32; j
++)
492 if (stipple
[i
] & (1<<j
))
498 OUT_RING( HC_HEADER2
);
499 OUT_RING( (HC_ParaType_NotTex
<< 16) );
500 OUT_RING( (HC_SubA_HSPXYOS
<< 24) );
501 OUT_RING( (HC_SubA_HSPXYOS
<< 24) );
507 vmesa
->newEmitState
= 0;
511 static INLINE GLuint
viaPackColor(GLuint bpp
,
512 GLubyte r
, GLubyte g
,
513 GLubyte b
, GLubyte a
)
517 return PACK_COLOR_565(r
, g
, b
);
519 return PACK_COLOR_8888(a
, r
, g
, b
);
526 static void viaBlendEquationSeparate(GLcontext
*ctx
,
530 if (VIA_DEBUG
& DEBUG_STATE
)
531 fprintf(stderr
, "%s in\n", __FUNCTION__
);
533 /* GL_EXT_blend_equation_separate not supported */
534 ASSERT(rgbMode
== aMode
);
536 /* Can only do GL_ADD equation in hardware */
537 FALLBACK(VIA_CONTEXT(ctx
), VIA_FALLBACK_BLEND_EQ
,
538 rgbMode
!= GL_FUNC_ADD_EXT
);
540 /* BlendEquation sets ColorLogicOpEnabled in an unexpected
543 FALLBACK(VIA_CONTEXT(ctx
), VIA_FALLBACK_LOGICOP
,
544 (ctx
->Color
.ColorLogicOpEnabled
&&
545 ctx
->Color
.LogicOp
!= GL_COPY
));
548 static void viaBlendFunc(GLcontext
*ctx
, GLenum sfactor
, GLenum dfactor
)
550 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
551 GLboolean fallback
= GL_FALSE
;
552 if (VIA_DEBUG
& DEBUG_STATE
)
553 fprintf(stderr
, "%s in\n", __FUNCTION__
);
555 switch (ctx
->Color
.BlendSrcRGB
) {
556 case GL_SRC_ALPHA_SATURATE
:
557 case GL_CONSTANT_COLOR
:
558 case GL_ONE_MINUS_CONSTANT_COLOR
:
559 case GL_CONSTANT_ALPHA
:
560 case GL_ONE_MINUS_CONSTANT_ALPHA
:
567 switch (ctx
->Color
.BlendDstRGB
) {
568 case GL_CONSTANT_COLOR
:
569 case GL_ONE_MINUS_CONSTANT_COLOR
:
570 case GL_CONSTANT_ALPHA
:
571 case GL_ONE_MINUS_CONSTANT_ALPHA
:
578 FALLBACK(vmesa
, VIA_FALLBACK_BLEND_FUNC
, fallback
);
581 /* Shouldn't be called as the extension is disabled.
583 static void viaBlendFuncSeparate(GLcontext
*ctx
, GLenum sfactorRGB
,
584 GLenum dfactorRGB
, GLenum sfactorA
,
587 if (dfactorRGB
!= dfactorA
|| sfactorRGB
!= sfactorA
) {
588 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBlendEquation (disabled)");
591 viaBlendFunc(ctx
, sfactorRGB
, dfactorRGB
);
597 /* =============================================================
600 static void viaScissor(GLcontext
*ctx
, GLint x
, GLint y
,
601 GLsizei w
, GLsizei h
)
603 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
605 if (!vmesa
->driDrawable
)
608 if (VIA_DEBUG
& DEBUG_STATE
)
609 fprintf(stderr
, "%s %d,%d %dx%d, drawH %d\n", __FUNCTION__
,
610 x
,y
,w
,h
, vmesa
->driDrawable
->h
);
612 if (vmesa
->scissor
) {
613 VIA_FLUSH_DMA(vmesa
); /* don't pipeline cliprect changes */
616 vmesa
->scissorRect
.x1
= x
;
617 vmesa
->scissorRect
.y1
= vmesa
->driDrawable
->h
- y
- h
;
618 vmesa
->scissorRect
.x2
= x
+ w
;
619 vmesa
->scissorRect
.y2
= vmesa
->driDrawable
->h
- y
;
622 static void viaEnable(GLcontext
*ctx
, GLenum cap
, GLboolean state
)
624 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
627 case GL_SCISSOR_TEST
:
628 VIA_FLUSH_DMA(vmesa
);
629 vmesa
->scissor
= state
;
638 /* Fallback to swrast for select and feedback.
640 static void viaRenderMode(GLcontext
*ctx
, GLenum mode
)
642 FALLBACK(VIA_CONTEXT(ctx
), VIA_FALLBACK_RENDERMODE
, (mode
!= GL_RENDER
));
646 static void viaDrawBuffer(GLcontext
*ctx
, GLenum mode
)
648 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
650 if (VIA_DEBUG
& (DEBUG_DRI
|DEBUG_STATE
))
651 fprintf(stderr
, "%s in\n", __FUNCTION__
);
653 if (!ctx
->DrawBuffer
)
656 if (ctx
->DrawBuffer
->_NumColorDrawBuffers
!= 1) {
657 FALLBACK(vmesa
, VIA_FALLBACK_DRAW_BUFFER
, GL_TRUE
);
661 switch ( ctx
->DrawBuffer
->_ColorDrawBufferIndexes
[0] ) {
662 case BUFFER_FRONT_LEFT
:
663 VIA_FLUSH_DMA(vmesa
);
664 vmesa
->drawBuffer
= &vmesa
->front
;
665 FALLBACK(vmesa
, VIA_FALLBACK_DRAW_BUFFER
, GL_FALSE
);
667 case BUFFER_BACK_LEFT
:
668 VIA_FLUSH_DMA(vmesa
);
669 vmesa
->drawBuffer
= &vmesa
->back
;
670 FALLBACK(vmesa
, VIA_FALLBACK_DRAW_BUFFER
, GL_FALSE
);
673 FALLBACK(vmesa
, VIA_FALLBACK_DRAW_BUFFER
, GL_TRUE
);
678 viaXMesaWindowMoved(vmesa
);
681 static void viaClearColor(GLcontext
*ctx
, const GLfloat color
[4])
683 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
685 CLAMPED_FLOAT_TO_UBYTE(pcolor
[0], color
[0]);
686 CLAMPED_FLOAT_TO_UBYTE(pcolor
[1], color
[1]);
687 CLAMPED_FLOAT_TO_UBYTE(pcolor
[2], color
[2]);
688 CLAMPED_FLOAT_TO_UBYTE(pcolor
[3], color
[3]);
689 vmesa
->ClearColor
= viaPackColor(vmesa
->viaScreen
->bitsPerPixel
,
690 pcolor
[0], pcolor
[1],
691 pcolor
[2], pcolor
[3]);
694 #define WRITEMASK_ALPHA_SHIFT 31
695 #define WRITEMASK_RED_SHIFT 30
696 #define WRITEMASK_GREEN_SHIFT 29
697 #define WRITEMASK_BLUE_SHIFT 28
699 static void viaColorMask(GLcontext
*ctx
,
700 GLboolean r
, GLboolean g
,
701 GLboolean b
, GLboolean a
)
703 struct via_context
*vmesa
= VIA_CONTEXT( ctx
);
705 if (VIA_DEBUG
& DEBUG_STATE
)
706 fprintf(stderr
, "%s r(%d) g(%d) b(%d) a(%d)\n", __FUNCTION__
, r
, g
, b
, a
);
708 vmesa
->ClearMask
= (((!r
) << WRITEMASK_RED_SHIFT
) |
709 ((!g
) << WRITEMASK_GREEN_SHIFT
) |
710 ((!b
) << WRITEMASK_BLUE_SHIFT
) |
711 ((!a
) << WRITEMASK_ALPHA_SHIFT
));
716 /* This hardware just isn't capable of private back buffers without
717 * glitches and/or a hefty locking scheme.
719 void viaCalcViewport(GLcontext
*ctx
)
721 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
722 __DRIdrawable
*dPriv
= vmesa
->driDrawable
;
723 struct via_renderbuffer
*const vrb
=
724 (struct via_renderbuffer
*) dPriv
->driverPrivate
;
725 const GLfloat
*v
= ctx
->Viewport
._WindowMap
.m
;
726 GLfloat
*m
= vmesa
->ViewportMatrix
.m
;
728 m
[MAT_SX
] = v
[MAT_SX
];
729 m
[MAT_TX
] = v
[MAT_TX
] + vrb
->drawX
+ SUBPIXEL_X
;
730 m
[MAT_SY
] = - v
[MAT_SY
];
731 m
[MAT_TY
] = - v
[MAT_TY
] + vrb
->drawY
+ SUBPIXEL_Y
+ vrb
->drawH
;
732 m
[MAT_SZ
] = v
[MAT_SZ
] * (1.0 / vmesa
->depth_max
);
733 m
[MAT_TZ
] = v
[MAT_TZ
] * (1.0 / vmesa
->depth_max
);
736 static void viaViewport(GLcontext
*ctx
,
738 GLsizei width
, GLsizei height
)
740 viaCalcViewport(ctx
);
743 static void viaDepthRange(GLcontext
*ctx
,
744 GLclampd nearval
, GLclampd farval
)
746 viaCalcViewport(ctx
);
749 void viaInitState(GLcontext
*ctx
)
751 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
753 vmesa
->regCmdB
= HC_ACMD_HCmdB
;
754 vmesa
->regEnable
= HC_HenCW_MASK
;
756 /* Mesa should do this for us:
759 ctx
->Driver
.BlendEquationSeparate( ctx
,
760 ctx
->Color
.BlendEquationRGB
,
761 ctx
->Color
.BlendEquationA
);
763 ctx
->Driver
.BlendFuncSeparate( ctx
,
764 ctx
->Color
.BlendSrcRGB
,
765 ctx
->Color
.BlendDstRGB
,
766 ctx
->Color
.BlendSrcA
,
767 ctx
->Color
.BlendDstA
);
769 ctx
->Driver
.Scissor( ctx
, ctx
->Scissor
.X
, ctx
->Scissor
.Y
,
770 ctx
->Scissor
.Width
, ctx
->Scissor
.Height
);
772 ctx
->Driver
.DrawBuffer( ctx
, ctx
->Color
.DrawBuffer
[0] );
776 * Convert S and T texture coordinate wrap modes to hardware bits.
779 get_wrap_mode( GLenum sWrap
, GLenum tWrap
)
786 v
|= HC_HTXnMPMD_Srepeat
;
789 case GL_CLAMP_TO_EDGE
:
790 v
|= HC_HTXnMPMD_Sclamp
;
792 case GL_MIRRORED_REPEAT
:
793 v
|= HC_HTXnMPMD_Smirror
;
799 v
|= HC_HTXnMPMD_Trepeat
;
802 case GL_CLAMP_TO_EDGE
:
803 v
|= HC_HTXnMPMD_Tclamp
;
805 case GL_MIRRORED_REPEAT
:
806 v
|= HC_HTXnMPMD_Tmirror
;
814 get_minmag_filter( GLenum min
, GLenum mag
)
820 v
= HC_HTXnFLSs_Nearest
|
824 v
= HC_HTXnFLSs_Linear
|
827 case GL_NEAREST_MIPMAP_NEAREST
:
828 v
= HC_HTXnFLSs_Nearest
|
830 v
|= HC_HTXnFLDs_Nearest
;
832 case GL_LINEAR_MIPMAP_NEAREST
:
833 v
= HC_HTXnFLSs_Linear
|
835 v
|= HC_HTXnFLDs_Nearest
;
837 case GL_NEAREST_MIPMAP_LINEAR
:
838 v
= HC_HTXnFLSs_Nearest
|
840 v
|= HC_HTXnFLDs_Linear
;
842 case GL_LINEAR_MIPMAP_LINEAR
:
843 v
= HC_HTXnFLSs_Linear
|
845 v
|= HC_HTXnFLDs_Linear
;
853 v
|= HC_HTXnFLSe_Linear
|
857 v
|= HC_HTXnFLSe_Nearest
|
868 static GLboolean
viaChooseTextureState(GLcontext
*ctx
)
870 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
871 struct gl_texture_unit
*texUnit0
= &ctx
->Texture
.Unit
[0];
872 struct gl_texture_unit
*texUnit1
= &ctx
->Texture
.Unit
[1];
874 if (texUnit0
->_ReallyEnabled
|| texUnit1
->_ReallyEnabled
) {
875 vmesa
->regEnable
|= HC_HenTXMP_MASK
| HC_HenTXCH_MASK
| HC_HenTXPP_MASK
;
877 if (texUnit0
->_ReallyEnabled
) {
878 struct gl_texture_object
*texObj
= texUnit0
->_Current
;
880 vmesa
->regHTXnTB
[0] = get_minmag_filter( texObj
->MinFilter
,
883 vmesa
->regHTXnMPMD
[0] &= ~(HC_HTXnMPMD_SMASK
| HC_HTXnMPMD_TMASK
);
884 vmesa
->regHTXnMPMD
[0] |= get_wrap_mode( texObj
->WrapS
,
887 vmesa
->regHTXnTB
[0] &= ~(HC_HTXnTB_TBC_S
| HC_HTXnTB_TBC_T
);
888 if (texObj
->Image
[0][texObj
->BaseLevel
]->Border
> 0) {
889 vmesa
->regHTXnTB
[0] |= (HC_HTXnTB_TBC_S
| HC_HTXnTB_TBC_T
);
890 vmesa
->regHTXnTBC
[0] =
891 PACK_COLOR_888(FLOAT_TO_UBYTE(texObj
->BorderColor
.f
[0]),
892 FLOAT_TO_UBYTE(texObj
->BorderColor
.f
[1]),
893 FLOAT_TO_UBYTE(texObj
->BorderColor
.f
[2]));
894 vmesa
->regHTXnTRAH
[0] = FLOAT_TO_UBYTE(texObj
->BorderColor
.f
[3]);
897 if (texUnit0
->LodBias
!= 0.0f
) {
898 GLuint b
= viaComputeLodBias(texUnit0
->LodBias
);
899 vmesa
->regHTXnTB
[0] &= ~HC_HTXnFLDs_MASK
;
900 vmesa
->regHTXnTB
[0] |= HC_HTXnFLDs_ConstLOD
;
901 vmesa
->regHTXnCLOD
[0] = (b
&0x1f) | (((~b
)&0x1f)<<10); /* FIXME */
904 if (!viaTexCombineState( vmesa
, texUnit0
->_CurrentCombine
, 0 )) {
905 if (VIA_DEBUG
& DEBUG_TEXTURE
)
906 fprintf(stderr
, "viaTexCombineState failed for unit 0\n");
911 if (texUnit1
->_ReallyEnabled
) {
912 struct gl_texture_object
*texObj
= texUnit1
->_Current
;
914 vmesa
->regHTXnTB
[1] = get_minmag_filter( texObj
->MinFilter
,
916 vmesa
->regHTXnMPMD
[1] &= ~(HC_HTXnMPMD_SMASK
| HC_HTXnMPMD_TMASK
);
917 vmesa
->regHTXnMPMD
[1] |= get_wrap_mode( texObj
->WrapS
,
920 vmesa
->regHTXnTB
[1] &= ~(HC_HTXnTB_TBC_S
| HC_HTXnTB_TBC_T
);
921 if (texObj
->Image
[0][texObj
->BaseLevel
]->Border
> 0) {
922 vmesa
->regHTXnTB
[1] |= (HC_HTXnTB_TBC_S
| HC_HTXnTB_TBC_T
);
923 vmesa
->regHTXnTBC
[1] =
924 PACK_COLOR_888(FLOAT_TO_UBYTE(texObj
->BorderColor
.f
[0]),
925 FLOAT_TO_UBYTE(texObj
->BorderColor
.f
[1]),
926 FLOAT_TO_UBYTE(texObj
->BorderColor
.f
[2]));
927 vmesa
->regHTXnTRAH
[1] = FLOAT_TO_UBYTE(texObj
->BorderColor
.f
[3]);
931 if (texUnit1
->LodBias
!= 0.0f
) {
932 GLuint b
= viaComputeLodBias(texUnit1
->LodBias
);
933 vmesa
->regHTXnTB
[1] &= ~HC_HTXnFLDs_MASK
;
934 vmesa
->regHTXnTB
[1] |= HC_HTXnFLDs_ConstLOD
;
935 vmesa
->regHTXnCLOD
[1] = (b
&0x1f) | (((~b
)&0x1f)<<10); /* FIXME */
938 if (!viaTexCombineState( vmesa
, texUnit1
->_CurrentCombine
, 1 )) {
939 if (VIA_DEBUG
& DEBUG_TEXTURE
)
940 fprintf(stderr
, "viaTexCombineState failed for unit 1\n");
946 vmesa
->regEnable
&= ~(HC_HenTXMP_MASK
| HC_HenTXCH_MASK
|
953 static void viaChooseColorState(GLcontext
*ctx
)
955 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
956 GLenum s
= ctx
->Color
.BlendSrcRGB
;
957 GLenum d
= ctx
->Color
.BlendDstRGB
;
959 /* The HW's blending equation is:
960 * (Ca * FCa + Cbias + Cb * FCb) << Cshift
963 if (ctx
->Color
.BlendEnabled
) {
964 vmesa
->regEnable
|= HC_HenABL_MASK
;
965 /* Ca -- always from source color.
967 vmesa
->regHABLCsat
= HC_HABLCsat_MASK
| HC_HABLCa_OPC
| HC_HABLCa_Csrc
;
968 /* Aa -- always from source alpha.
970 vmesa
->regHABLAsat
= HC_HABLAsat_MASK
| HC_HABLAa_OPA
| HC_HABLAa_Asrc
;
971 /* FCa -- depend on following condition.
972 * FAa -- depend on following condition.
978 vmesa
->regHABLCsat
|= HC_HABLFCa_OPC
| HC_HABLFCa_HABLRCa
;
979 vmesa
->regHABLAsat
|= HC_HABLFAa_OPA
| HC_HABLFAa_HABLFRA
;
980 vmesa
->regHABLRFCa
= 0x0;
981 vmesa
->regHABLRAa
= 0x0;
986 vmesa
->regHABLCsat
|= HC_HABLFCa_InvOPC
| HC_HABLFCa_HABLRCa
;
987 vmesa
->regHABLAsat
|= HC_HABLFAa_InvOPA
| HC_HABLFAa_HABLFRA
;
988 vmesa
->regHABLRFCa
= 0x0;
989 vmesa
->regHABLRAa
= 0x0;
994 vmesa
->regHABLCsat
|= HC_HABLFCa_OPC
| HC_HABLFCa_Csrc
;
995 vmesa
->regHABLAsat
|= HC_HABLFAa_OPA
| HC_HABLFAa_Asrc
;
997 case GL_ONE_MINUS_SRC_COLOR
:
998 /* (1, 1, 1, 1) - (Rs, Gs, Bs, As)
1000 vmesa
->regHABLCsat
|= HC_HABLFCa_InvOPC
| HC_HABLFCa_Csrc
;
1001 vmesa
->regHABLAsat
|= HC_HABLFAa_InvOPA
| HC_HABLFAa_Asrc
;
1006 vmesa
->regHABLCsat
|= HC_HABLFCa_OPC
| HC_HABLFCa_Cdst
;
1007 vmesa
->regHABLAsat
|= HC_HABLFAa_OPA
| HC_HABLFAa_Adst
;
1009 case GL_ONE_MINUS_DST_COLOR
:
1010 /* (1, 1, 1, 1) - (Rd, Gd, Bd, Ad)
1012 vmesa
->regHABLCsat
|= HC_HABLFCa_InvOPC
| HC_HABLFCa_Cdst
;
1013 vmesa
->regHABLAsat
|= HC_HABLFAa_InvOPA
| HC_HABLFAa_Adst
;
1018 vmesa
->regHABLCsat
|= HC_HABLFCa_OPC
| HC_HABLFCa_Asrc
;
1019 vmesa
->regHABLAsat
|= HC_HABLFAa_OPA
| HC_HABLFAa_Asrc
;
1021 case GL_ONE_MINUS_SRC_ALPHA
:
1022 /* (1, 1, 1, 1) - (As, As, As, As)
1024 vmesa
->regHABLCsat
|= HC_HABLFCa_InvOPC
| HC_HABLFCa_Asrc
;
1025 vmesa
->regHABLAsat
|= HC_HABLFAa_InvOPA
| HC_HABLFAa_Asrc
;
1029 if (vmesa
->viaScreen
->bitsPerPixel
== 16) {
1032 vmesa
->regHABLCsat
|= (HC_HABLFCa_InvOPC
|
1033 HC_HABLFCa_HABLRCa
);
1034 vmesa
->regHABLAsat
|= (HC_HABLFAa_InvOPA
|
1035 HC_HABLFAa_HABLFRA
);
1036 vmesa
->regHABLRFCa
= 0x0;
1037 vmesa
->regHABLRAa
= 0x0;
1042 vmesa
->regHABLCsat
|= HC_HABLFCa_OPC
| HC_HABLFCa_Adst
;
1043 vmesa
->regHABLAsat
|= HC_HABLFAa_OPA
| HC_HABLFAa_Adst
;
1047 case GL_ONE_MINUS_DST_ALPHA
:
1049 if (vmesa
->viaScreen
->bitsPerPixel
== 16) {
1050 /* (1, 1, 1, 1) - (1, 1, 1, 1) = (0, 0, 0, 0)
1052 vmesa
->regHABLCsat
|= HC_HABLFCa_OPC
| HC_HABLFCa_HABLRCa
;
1053 vmesa
->regHABLAsat
|= HC_HABLFAa_OPA
| HC_HABLFAa_HABLFRA
;
1054 vmesa
->regHABLRFCa
= 0x0;
1055 vmesa
->regHABLRAa
= 0x0;
1058 /* (1, 1, 1, 1) - (Ad, Ad, Ad, Ad)
1060 vmesa
->regHABLCsat
|= HC_HABLFCa_InvOPC
| HC_HABLFCa_Adst
;
1061 vmesa
->regHABLAsat
|= HC_HABLFAa_InvOPA
| HC_HABLFAa_Adst
;
1065 case GL_SRC_ALPHA_SATURATE
:
1067 if (vmesa
->viaScreen
->bitsPerPixel
== 16) {
1068 /* (f, f, f, 1), f = min(As, 1 - Ad) = min(As, 1 - 1) = 0
1069 * So (f, f, f, 1) = (0, 0, 0, 1)
1071 vmesa
->regHABLCsat
|= HC_HABLFCa_OPC
| HC_HABLFCa_HABLRCa
;
1072 vmesa
->regHABLAsat
|= (HC_HABLFAa_InvOPA
|
1073 HC_HABLFAa_HABLFRA
);
1074 vmesa
->regHABLRFCa
= 0x0;
1075 vmesa
->regHABLRAa
= 0x0;
1078 /* (f, f, f, 1), f = min(As, 1 - Ad)
1080 vmesa
->regHABLCsat
|= (HC_HABLFCa_OPC
|
1081 HC_HABLFCa_mimAsrcInvAdst
);
1082 vmesa
->regHABLAsat
|= (HC_HABLFAa_InvOPA
|
1083 HC_HABLFAa_HABLFRA
);
1084 vmesa
->regHABLRFCa
= 0x0;
1085 vmesa
->regHABLRAa
= 0x0;
1096 vmesa
->regHABLCsat
|= HC_HABLCbias_HABLRCbias
;
1097 vmesa
->regHABLAsat
|= HC_HABLAbias_HABLRAbias
;
1099 /* Cb -- always from destination color.
1101 vmesa
->regHABLCop
= HC_HABLCb_OPC
| HC_HABLCb_Cdst
;
1102 /* Ab -- always from destination alpha.
1104 vmesa
->regHABLAop
= HC_HABLAb_OPA
| HC_HABLAb_Adst
;
1105 /* FCb -- depend on following condition.
1111 vmesa
->regHABLCop
|= HC_HABLFCb_OPC
| HC_HABLFCb_HABLRCb
;
1112 vmesa
->regHABLAop
|= HC_HABLFAb_OPA
| HC_HABLFAb_HABLFRA
;
1113 vmesa
->regHABLRFCb
= 0x0;
1114 vmesa
->regHABLRAb
= 0x0;
1119 vmesa
->regHABLCop
|= HC_HABLFCb_InvOPC
| HC_HABLFCb_HABLRCb
;
1120 vmesa
->regHABLAop
|= HC_HABLFAb_InvOPA
| HC_HABLFAb_HABLFRA
;
1121 vmesa
->regHABLRFCb
= 0x0;
1122 vmesa
->regHABLRAb
= 0x0;
1127 vmesa
->regHABLCop
|= HC_HABLFCb_OPC
| HC_HABLFCb_Csrc
;
1128 vmesa
->regHABLAop
|= HC_HABLFAb_OPA
| HC_HABLFAb_Asrc
;
1130 case GL_ONE_MINUS_SRC_COLOR
:
1131 /* (1, 1, 1, 1) - (Rs, Gs, Bs, As)
1133 vmesa
->regHABLCop
|= HC_HABLFCb_InvOPC
| HC_HABLFCb_Csrc
;
1134 vmesa
->regHABLAop
|= HC_HABLFAb_InvOPA
| HC_HABLFAb_Asrc
;
1139 vmesa
->regHABLCop
|= HC_HABLFCb_OPC
| HC_HABLFCb_Cdst
;
1140 vmesa
->regHABLAop
|= HC_HABLFAb_OPA
| HC_HABLFAb_Adst
;
1142 case GL_ONE_MINUS_DST_COLOR
:
1143 /* (1, 1, 1, 1) - (Rd, Gd, Bd, Ad)
1145 vmesa
->regHABLCop
|= HC_HABLFCb_InvOPC
| HC_HABLFCb_Cdst
;
1146 vmesa
->regHABLAop
|= HC_HABLFAb_InvOPA
| HC_HABLFAb_Adst
;
1151 vmesa
->regHABLCop
|= HC_HABLFCb_OPC
| HC_HABLFCb_Asrc
;
1152 vmesa
->regHABLAop
|= HC_HABLFAb_OPA
| HC_HABLFAb_Asrc
;
1154 case GL_ONE_MINUS_SRC_ALPHA
:
1155 /* (1, 1, 1, 1) - (As, As, As, As)
1157 vmesa
->regHABLCop
|= HC_HABLFCb_InvOPC
| HC_HABLFCb_Asrc
;
1158 vmesa
->regHABLAop
|= HC_HABLFAb_InvOPA
| HC_HABLFAb_Asrc
;
1162 if (vmesa
->viaScreen
->bitsPerPixel
== 16) {
1165 vmesa
->regHABLCop
|= HC_HABLFCb_InvOPC
| HC_HABLFCb_HABLRCb
;
1166 vmesa
->regHABLAop
|= HC_HABLFAb_InvOPA
| HC_HABLFAb_HABLFRA
;
1167 vmesa
->regHABLRFCb
= 0x0;
1168 vmesa
->regHABLRAb
= 0x0;
1173 vmesa
->regHABLCop
|= HC_HABLFCb_OPC
| HC_HABLFCb_Adst
;
1174 vmesa
->regHABLAop
|= HC_HABLFAb_OPA
| HC_HABLFAb_Adst
;
1178 case GL_ONE_MINUS_DST_ALPHA
:
1180 if (vmesa
->viaScreen
->bitsPerPixel
== 16) {
1181 /* (1, 1, 1, 1) - (1, 1, 1, 1) = (0, 0, 0, 0)
1183 vmesa
->regHABLCop
|= HC_HABLFCb_OPC
| HC_HABLFCb_HABLRCb
;
1184 vmesa
->regHABLAop
|= HC_HABLFAb_OPA
| HC_HABLFAb_HABLFRA
;
1185 vmesa
->regHABLRFCb
= 0x0;
1186 vmesa
->regHABLRAb
= 0x0;
1189 /* (1, 1, 1, 1) - (Ad, Ad, Ad, Ad)
1191 vmesa
->regHABLCop
|= HC_HABLFCb_InvOPC
| HC_HABLFCb_Adst
;
1192 vmesa
->regHABLAop
|= HC_HABLFAb_InvOPA
| HC_HABLFAb_Adst
;
1197 vmesa
->regHABLCop
|= HC_HABLFCb_OPC
| HC_HABLFCb_HABLRCb
;
1198 vmesa
->regHABLAop
|= HC_HABLFAb_OPA
| HC_HABLFAb_HABLFRA
;
1199 vmesa
->regHABLRFCb
= 0x0;
1200 vmesa
->regHABLRAb
= 0x0;
1204 if (vmesa
->viaScreen
->bitsPerPixel
<= 16)
1205 vmesa
->regEnable
&= ~HC_HenDT_MASK
;
1209 vmesa
->regEnable
&= (~HC_HenABL_MASK
);
1212 if (ctx
->Color
.AlphaEnabled
) {
1213 vmesa
->regEnable
|= HC_HenAT_MASK
;
1214 vmesa
->regHATMD
= FLOAT_TO_UBYTE(ctx
->Color
.AlphaRef
) |
1215 ((ctx
->Color
.AlphaFunc
- GL_NEVER
) << 8);
1218 vmesa
->regEnable
&= (~HC_HenAT_MASK
);
1221 if (ctx
->Color
.DitherFlag
&& (vmesa
->viaScreen
->bitsPerPixel
< 32)) {
1222 if (ctx
->Color
.BlendEnabled
) {
1223 vmesa
->regEnable
&= ~HC_HenDT_MASK
;
1226 vmesa
->regEnable
|= HC_HenDT_MASK
;
1231 vmesa
->regEnable
&= ~HC_HenDT_MASK
;
1233 if (ctx
->Color
.ColorLogicOpEnabled
)
1234 vmesa
->regHROP
= ROP
[ctx
->Color
.LogicOp
& 0xF];
1236 vmesa
->regHROP
= HC_HROP_P
;
1238 vmesa
->regHFBBMSKL
= PACK_COLOR_888(ctx
->Color
.ColorMask
[0][0],
1239 ctx
->Color
.ColorMask
[0][1],
1240 ctx
->Color
.ColorMask
[0][2]);
1241 vmesa
->regHROP
|= ctx
->Color
.ColorMask
[0][3];
1243 if (ctx
->Color
.ColorMask
[0][3])
1244 vmesa
->regEnable
|= HC_HenAW_MASK
;
1246 vmesa
->regEnable
&= ~HC_HenAW_MASK
;
1249 static void viaChooseFogState(GLcontext
*ctx
)
1251 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
1253 if (ctx
->Fog
.Enabled
) {
1256 vmesa
->regEnable
|= HC_HenFOG_MASK
;
1258 /* Use fog equation 0 (OpenGL's default) & local fog.
1260 vmesa
->regHFogLF
= 0x0;
1262 r
= (GLubyte
)(ctx
->Fog
.Color
[0] * 255.0F
);
1263 g
= (GLubyte
)(ctx
->Fog
.Color
[1] * 255.0F
);
1264 b
= (GLubyte
)(ctx
->Fog
.Color
[2] * 255.0F
);
1265 a
= (GLubyte
)(ctx
->Fog
.Color
[3] * 255.0F
);
1266 vmesa
->regHFogCL
= (r
<< 16) | (g
<< 8) | b
;
1267 vmesa
->regHFogCH
= a
;
1270 vmesa
->regEnable
&= ~HC_HenFOG_MASK
;
1274 static void viaChooseDepthState(GLcontext
*ctx
)
1276 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
1277 if (ctx
->Depth
.Test
) {
1278 vmesa
->regEnable
|= HC_HenZT_MASK
;
1279 if (ctx
->Depth
.Mask
)
1280 vmesa
->regEnable
|= HC_HenZW_MASK
;
1282 vmesa
->regEnable
&= (~HC_HenZW_MASK
);
1283 vmesa
->regHZWTMD
= (ctx
->Depth
.Func
- GL_NEVER
) << 16;
1287 vmesa
->regEnable
&= ~HC_HenZT_MASK
;
1289 /*=* [DBG] racer : can't display cars in car selection menu *=*/
1290 /*if (ctx->Depth.Mask)
1291 vmesa->regEnable |= HC_HenZW_MASK;
1293 vmesa->regEnable &= (~HC_HenZW_MASK);*/
1294 vmesa
->regEnable
&= (~HC_HenZW_MASK
);
1298 static void viaChooseLineState(GLcontext
*ctx
)
1300 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
1302 if (ctx
->Line
.StippleFlag
) {
1303 vmesa
->regEnable
|= HC_HenLP_MASK
;
1304 vmesa
->regHLP
= ctx
->Line
.StipplePattern
;
1305 vmesa
->regHLPRF
= ctx
->Line
.StippleFactor
;
1308 vmesa
->regEnable
&= ~HC_HenLP_MASK
;
1312 static void viaChoosePolygonState(GLcontext
*ctx
)
1314 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
1317 /* Polygon stipple is broken - see via_state.c
1319 if (ctx
->Polygon
.StippleFlag
) {
1320 vmesa
->regEnable
|= HC_HenSP_MASK
;
1323 vmesa
->regEnable
&= ~HC_HenSP_MASK
;
1326 FALLBACK(vmesa
, VIA_FALLBACK_POLY_STIPPLE
,
1327 ctx
->Polygon
.StippleFlag
);
1330 if (ctx
->Polygon
.CullFlag
) {
1331 vmesa
->regEnable
|= HC_HenFBCull_MASK
;
1334 vmesa
->regEnable
&= ~HC_HenFBCull_MASK
;
1338 static void viaChooseStencilState(GLcontext
*ctx
)
1340 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
1342 if (ctx
->Stencil
._Enabled
) {
1345 vmesa
->regEnable
|= HC_HenST_MASK
;
1346 temp
= (ctx
->Stencil
.Ref
[0] & 0xFF) << HC_HSTREF_SHIFT
;
1347 temp
|= 0xFF << HC_HSTOPMSK_SHIFT
;
1348 temp
|= (ctx
->Stencil
.ValueMask
[0] & 0xFF);
1349 vmesa
->regHSTREF
= temp
;
1351 temp
= (ctx
->Stencil
.Function
[0] - GL_NEVER
) << 16;
1353 switch (ctx
->Stencil
.FailFunc
[0]) {
1355 temp
|= HC_HSTOPSF_KEEP
;
1358 temp
|= HC_HSTOPSF_ZERO
;
1361 temp
|= HC_HSTOPSF_REPLACE
;
1364 temp
|= HC_HSTOPSF_INVERT
;
1367 temp
|= HC_HSTOPSF_INCR
;
1370 temp
|= HC_HSTOPSF_DECR
;
1374 switch (ctx
->Stencil
.ZFailFunc
[0]) {
1376 temp
|= HC_HSTOPSPZF_KEEP
;
1379 temp
|= HC_HSTOPSPZF_ZERO
;
1382 temp
|= HC_HSTOPSPZF_REPLACE
;
1385 temp
|= HC_HSTOPSPZF_INVERT
;
1388 temp
|= HC_HSTOPSPZF_INCR
;
1391 temp
|= HC_HSTOPSPZF_DECR
;
1395 switch (ctx
->Stencil
.ZPassFunc
[0]) {
1397 temp
|= HC_HSTOPSPZP_KEEP
;
1400 temp
|= HC_HSTOPSPZP_ZERO
;
1403 temp
|= HC_HSTOPSPZP_REPLACE
;
1406 temp
|= HC_HSTOPSPZP_INVERT
;
1409 temp
|= HC_HSTOPSPZP_INCR
;
1412 temp
|= HC_HSTOPSPZP_DECR
;
1415 vmesa
->regHSTMD
= temp
;
1418 vmesa
->regEnable
&= ~HC_HenST_MASK
;
1424 static void viaChooseTriangle(GLcontext
*ctx
)
1426 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
1428 if (ctx
->Polygon
.CullFlag
== GL_TRUE
) {
1429 switch (ctx
->Polygon
.CullFaceMode
) {
1431 if (ctx
->Polygon
.FrontFace
== GL_CCW
)
1432 vmesa
->regCmdB
|= HC_HBFace_MASK
;
1434 vmesa
->regCmdB
&= ~HC_HBFace_MASK
;
1437 if (ctx
->Polygon
.FrontFace
== GL_CW
)
1438 vmesa
->regCmdB
|= HC_HBFace_MASK
;
1440 vmesa
->regCmdB
&= ~HC_HBFace_MASK
;
1442 case GL_FRONT_AND_BACK
:
1448 void viaValidateState( GLcontext
*ctx
)
1450 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
1452 if (vmesa
->newState
& _NEW_TEXTURE
) {
1453 GLboolean ok
= (viaChooseTextureState(ctx
) &&
1454 viaUpdateTextureState(ctx
));
1456 FALLBACK(vmesa
, VIA_FALLBACK_TEXTURE
, !ok
);
1459 if (vmesa
->newState
& _NEW_COLOR
)
1460 viaChooseColorState(ctx
);
1462 if (vmesa
->newState
& _NEW_DEPTH
)
1463 viaChooseDepthState(ctx
);
1465 if (vmesa
->newState
& _NEW_FOG
)
1466 viaChooseFogState(ctx
);
1468 if (vmesa
->newState
& _NEW_LINE
)
1469 viaChooseLineState(ctx
);
1471 if (vmesa
->newState
& (_NEW_POLYGON
| _NEW_POLYGONSTIPPLE
)) {
1472 viaChoosePolygonState(ctx
);
1473 viaChooseTriangle(ctx
);
1476 if ((vmesa
->newState
& _NEW_STENCIL
) && vmesa
->have_hw_stencil
)
1477 viaChooseStencilState(ctx
);
1479 if (ctx
->_TriangleCaps
& DD_SEPARATE_SPECULAR
)
1480 vmesa
->regEnable
|= HC_HenCS_MASK
;
1482 vmesa
->regEnable
&= ~HC_HenCS_MASK
;
1484 if (ctx
->Point
.SmoothFlag
||
1485 ctx
->Line
.SmoothFlag
||
1486 ctx
->Polygon
.SmoothFlag
)
1487 vmesa
->regEnable
|= HC_HenAA_MASK
;
1489 vmesa
->regEnable
&= ~HC_HenAA_MASK
;
1491 vmesa
->newEmitState
|= vmesa
->newState
;
1492 vmesa
->newState
= 0;
1495 static void viaInvalidateState(GLcontext
*ctx
, GLuint newState
)
1497 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
1499 VIA_FINISH_PRIM( vmesa
);
1500 vmesa
->newState
|= newState
;
1502 _swrast_InvalidateState(ctx
, newState
);
1503 _swsetup_InvalidateState(ctx
, newState
);
1504 _vbo_InvalidateState(ctx
, newState
);
1505 _tnl_InvalidateState(ctx
, newState
);
1508 void viaInitStateFuncs(GLcontext
*ctx
)
1510 /* Callbacks for internal Mesa events.
1512 ctx
->Driver
.UpdateState
= viaInvalidateState
;
1516 ctx
->Driver
.BlendEquationSeparate
= viaBlendEquationSeparate
;
1517 ctx
->Driver
.BlendFuncSeparate
= viaBlendFuncSeparate
;
1518 ctx
->Driver
.ClearColor
= viaClearColor
;
1519 ctx
->Driver
.ColorMask
= viaColorMask
;
1520 ctx
->Driver
.DrawBuffer
= viaDrawBuffer
;
1521 ctx
->Driver
.RenderMode
= viaRenderMode
;
1522 ctx
->Driver
.Scissor
= viaScissor
;
1523 ctx
->Driver
.DepthRange
= viaDepthRange
;
1524 ctx
->Driver
.Viewport
= viaViewport
;
1525 ctx
->Driver
.Enable
= viaEnable
;
1527 /* XXX this should go away */
1528 ctx
->Driver
.ResizeBuffers
= viaReAllocateBuffers
;