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 (((32- vrb
->drawXoff
) & 0x1f) << HC_HSPXOS_SHIFT
));
505 OUT_RING( (HC_SubA_HSPXYOS
<< 24) |
506 (((32 - vrb
->drawXoff
) & 0x1f) << HC_HSPXOS_SHIFT
));
512 vmesa
->newEmitState
= 0;
516 static __inline__ GLuint
viaPackColor(GLuint bpp
,
517 GLubyte r
, GLubyte g
,
518 GLubyte b
, GLubyte a
)
522 return PACK_COLOR_565(r
, g
, b
);
524 return PACK_COLOR_8888(a
, r
, g
, b
);
531 static void viaBlendEquationSeparate(GLcontext
*ctx
,
535 if (VIA_DEBUG
& DEBUG_STATE
)
536 fprintf(stderr
, "%s in\n", __FUNCTION__
);
538 /* GL_EXT_blend_equation_separate not supported */
539 ASSERT(rgbMode
== aMode
);
541 /* Can only do GL_ADD equation in hardware */
542 FALLBACK(VIA_CONTEXT(ctx
), VIA_FALLBACK_BLEND_EQ
,
543 rgbMode
!= GL_FUNC_ADD_EXT
);
545 /* BlendEquation sets ColorLogicOpEnabled in an unexpected
548 FALLBACK(VIA_CONTEXT(ctx
), VIA_FALLBACK_LOGICOP
,
549 (ctx
->Color
.ColorLogicOpEnabled
&&
550 ctx
->Color
.LogicOp
!= GL_COPY
));
553 static void viaBlendFunc(GLcontext
*ctx
, GLenum sfactor
, GLenum dfactor
)
555 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
556 GLboolean fallback
= GL_FALSE
;
557 if (VIA_DEBUG
& DEBUG_STATE
)
558 fprintf(stderr
, "%s in\n", __FUNCTION__
);
560 switch (ctx
->Color
.BlendSrcRGB
) {
561 case GL_SRC_ALPHA_SATURATE
:
562 case GL_CONSTANT_COLOR
:
563 case GL_ONE_MINUS_CONSTANT_COLOR
:
564 case GL_CONSTANT_ALPHA
:
565 case GL_ONE_MINUS_CONSTANT_ALPHA
:
572 switch (ctx
->Color
.BlendDstRGB
) {
573 case GL_CONSTANT_COLOR
:
574 case GL_ONE_MINUS_CONSTANT_COLOR
:
575 case GL_CONSTANT_ALPHA
:
576 case GL_ONE_MINUS_CONSTANT_ALPHA
:
583 FALLBACK(vmesa
, VIA_FALLBACK_BLEND_FUNC
, fallback
);
586 /* Shouldn't be called as the extension is disabled.
588 static void viaBlendFuncSeparate(GLcontext
*ctx
, GLenum sfactorRGB
,
589 GLenum dfactorRGB
, GLenum sfactorA
,
592 if (dfactorRGB
!= dfactorA
|| sfactorRGB
!= sfactorA
) {
593 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBlendEquation (disabled)");
596 viaBlendFunc(ctx
, sfactorRGB
, dfactorRGB
);
602 /* =============================================================
605 static void viaScissor(GLcontext
*ctx
, GLint x
, GLint y
,
606 GLsizei w
, GLsizei h
)
608 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
610 if (!vmesa
->driDrawable
)
613 if (VIA_DEBUG
& DEBUG_STATE
)
614 fprintf(stderr
, "%s %d,%d %dx%d, drawH %d\n", __FUNCTION__
,
615 x
,y
,w
,h
, vmesa
->driDrawable
->h
);
617 if (vmesa
->scissor
) {
618 VIA_FLUSH_DMA(vmesa
); /* don't pipeline cliprect changes */
621 vmesa
->scissorRect
.x1
= x
;
622 vmesa
->scissorRect
.y1
= vmesa
->driDrawable
->h
- y
- h
;
623 vmesa
->scissorRect
.x2
= x
+ w
;
624 vmesa
->scissorRect
.y2
= vmesa
->driDrawable
->h
- y
;
627 static void viaEnable(GLcontext
*ctx
, GLenum cap
, GLboolean state
)
629 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
632 case GL_SCISSOR_TEST
:
633 VIA_FLUSH_DMA(vmesa
);
634 vmesa
->scissor
= state
;
643 /* Fallback to swrast for select and feedback.
645 static void viaRenderMode(GLcontext
*ctx
, GLenum mode
)
647 FALLBACK(VIA_CONTEXT(ctx
), VIA_FALLBACK_RENDERMODE
, (mode
!= GL_RENDER
));
651 static void viaDrawBuffer(GLcontext
*ctx
, GLenum mode
)
653 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
655 if (VIA_DEBUG
& (DEBUG_DRI
|DEBUG_STATE
))
656 fprintf(stderr
, "%s in\n", __FUNCTION__
);
658 if (!ctx
->DrawBuffer
)
661 switch ( ctx
->DrawBuffer
->_ColorDrawBufferMask
[0] ) {
662 case BUFFER_BIT_FRONT_LEFT
:
663 VIA_FLUSH_DMA(vmesa
);
664 vmesa
->drawBuffer
= &vmesa
->front
;
665 FALLBACK(vmesa
, VIA_FALLBACK_DRAW_BUFFER
, GL_FALSE
);
667 case BUFFER_BIT_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
));
715 /* =============================================================
719 /* Using drawXoff like this is incorrect outside of locked regions.
720 * This hardware just isn't capable of private back buffers without
721 * glitches and/or a hefty locking scheme.
723 void viaCalcViewport(GLcontext
*ctx
)
725 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
726 __DRIdrawablePrivate
*dPriv
= vmesa
->driDrawable
;
727 struct via_renderbuffer
*const vrb
=
728 (struct via_renderbuffer
*) dPriv
->driverPrivate
;
729 const GLfloat
*v
= ctx
->Viewport
._WindowMap
.m
;
730 GLfloat
*m
= vmesa
->ViewportMatrix
.m
;
732 /* See also via_translate_vertex.
734 m
[MAT_SX
] = v
[MAT_SX
];
735 m
[MAT_TX
] = v
[MAT_TX
] + SUBPIXEL_X
+ vrb
->drawXoff
;
736 m
[MAT_SY
] = - v
[MAT_SY
];
737 m
[MAT_TY
] = - v
[MAT_TY
] + dPriv
->h
+ SUBPIXEL_Y
;
738 m
[MAT_SZ
] = v
[MAT_SZ
] * (1.0 / vmesa
->depth_max
);
739 m
[MAT_TZ
] = v
[MAT_TZ
] * (1.0 / vmesa
->depth_max
);
742 static void viaViewport(GLcontext
*ctx
,
744 GLsizei width
, GLsizei height
)
746 viaCalcViewport(ctx
);
749 static void viaDepthRange(GLcontext
*ctx
,
750 GLclampd nearval
, GLclampd farval
)
752 viaCalcViewport(ctx
);
755 void viaInitState(GLcontext
*ctx
)
757 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
759 vmesa
->regCmdB
= HC_ACMD_HCmdB
;
760 vmesa
->regEnable
= HC_HenCW_MASK
;
762 /* Mesa should do this for us:
765 ctx
->Driver
.BlendEquationSeparate( ctx
,
766 ctx
->Color
.BlendEquationRGB
,
767 ctx
->Color
.BlendEquationA
);
769 ctx
->Driver
.BlendFuncSeparate( ctx
,
770 ctx
->Color
.BlendSrcRGB
,
771 ctx
->Color
.BlendDstRGB
,
772 ctx
->Color
.BlendSrcA
,
773 ctx
->Color
.BlendDstA
);
775 ctx
->Driver
.Scissor( ctx
, ctx
->Scissor
.X
, ctx
->Scissor
.Y
,
776 ctx
->Scissor
.Width
, ctx
->Scissor
.Height
);
778 ctx
->Driver
.DrawBuffer( ctx
, ctx
->Color
.DrawBuffer
[0] );
782 * Convert S and T texture coordinate wrap modes to hardware bits.
785 get_wrap_mode( GLenum sWrap
, GLenum tWrap
)
792 v
|= HC_HTXnMPMD_Srepeat
;
795 case GL_CLAMP_TO_EDGE
:
796 v
|= HC_HTXnMPMD_Sclamp
;
798 case GL_MIRRORED_REPEAT
:
799 v
|= HC_HTXnMPMD_Smirror
;
805 v
|= HC_HTXnMPMD_Trepeat
;
808 case GL_CLAMP_TO_EDGE
:
809 v
|= HC_HTXnMPMD_Tclamp
;
811 case GL_MIRRORED_REPEAT
:
812 v
|= HC_HTXnMPMD_Tmirror
;
820 get_minmag_filter( GLenum min
, GLenum mag
)
826 v
= HC_HTXnFLSs_Nearest
|
830 v
= HC_HTXnFLSs_Linear
|
833 case GL_NEAREST_MIPMAP_NEAREST
:
834 v
= HC_HTXnFLSs_Nearest
|
836 v
|= HC_HTXnFLDs_Nearest
;
838 case GL_LINEAR_MIPMAP_NEAREST
:
839 v
= HC_HTXnFLSs_Linear
|
841 v
|= HC_HTXnFLDs_Nearest
;
843 case GL_NEAREST_MIPMAP_LINEAR
:
844 v
= HC_HTXnFLSs_Nearest
|
846 v
|= HC_HTXnFLDs_Linear
;
848 case GL_LINEAR_MIPMAP_LINEAR
:
849 v
= HC_HTXnFLSs_Linear
|
851 v
|= HC_HTXnFLDs_Linear
;
859 v
|= HC_HTXnFLSe_Linear
|
863 v
|= HC_HTXnFLSe_Nearest
|
874 static GLboolean
viaChooseTextureState(GLcontext
*ctx
)
876 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
877 struct gl_texture_unit
*texUnit0
= &ctx
->Texture
.Unit
[0];
878 struct gl_texture_unit
*texUnit1
= &ctx
->Texture
.Unit
[1];
880 if (texUnit0
->_ReallyEnabled
|| texUnit1
->_ReallyEnabled
) {
881 vmesa
->regEnable
|= HC_HenTXMP_MASK
| HC_HenTXCH_MASK
| HC_HenTXPP_MASK
;
883 if (texUnit0
->_ReallyEnabled
) {
884 struct gl_texture_object
*texObj
= texUnit0
->_Current
;
886 vmesa
->regHTXnTB
[0] = get_minmag_filter( texObj
->MinFilter
,
889 vmesa
->regHTXnMPMD
[0] &= ~(HC_HTXnMPMD_SMASK
| HC_HTXnMPMD_TMASK
);
890 vmesa
->regHTXnMPMD
[0] |= get_wrap_mode( texObj
->WrapS
,
893 vmesa
->regHTXnTB
[0] &= ~(HC_HTXnTB_TBC_S
| HC_HTXnTB_TBC_T
);
894 if (texObj
->Image
[0][texObj
->BaseLevel
]->Border
> 0) {
895 vmesa
->regHTXnTB
[0] |= (HC_HTXnTB_TBC_S
| HC_HTXnTB_TBC_T
);
896 vmesa
->regHTXnTBC
[0] =
897 PACK_COLOR_888(FLOAT_TO_UBYTE(texObj
->BorderColor
[0]),
898 FLOAT_TO_UBYTE(texObj
->BorderColor
[1]),
899 FLOAT_TO_UBYTE(texObj
->BorderColor
[2]));
900 vmesa
->regHTXnTRAH
[0] = FLOAT_TO_UBYTE(texObj
->BorderColor
[3]);
903 if (texUnit0
->LodBias
!= 0.0f
) {
904 GLuint b
= viaComputeLodBias(texUnit0
->LodBias
);
905 vmesa
->regHTXnTB
[0] &= ~HC_HTXnFLDs_MASK
;
906 vmesa
->regHTXnTB
[0] |= HC_HTXnFLDs_ConstLOD
;
907 vmesa
->regHTXnCLOD
[0] = (b
&0x1f) | (((~b
)&0x1f)<<10); /* FIXME */
910 if (!viaTexCombineState( vmesa
, texUnit0
->_CurrentCombine
, 0 )) {
911 if (VIA_DEBUG
& DEBUG_TEXTURE
)
912 fprintf(stderr
, "viaTexCombineState failed for unit 0\n");
917 if (texUnit1
->_ReallyEnabled
) {
918 struct gl_texture_object
*texObj
= texUnit1
->_Current
;
920 vmesa
->regHTXnTB
[1] = get_minmag_filter( texObj
->MinFilter
,
922 vmesa
->regHTXnMPMD
[1] &= ~(HC_HTXnMPMD_SMASK
| HC_HTXnMPMD_TMASK
);
923 vmesa
->regHTXnMPMD
[1] |= get_wrap_mode( texObj
->WrapS
,
926 vmesa
->regHTXnTB
[1] &= ~(HC_HTXnTB_TBC_S
| HC_HTXnTB_TBC_T
);
927 if (texObj
->Image
[0][texObj
->BaseLevel
]->Border
> 0) {
928 vmesa
->regHTXnTB
[1] |= (HC_HTXnTB_TBC_S
| HC_HTXnTB_TBC_T
);
929 vmesa
->regHTXnTBC
[1] =
930 PACK_COLOR_888(FLOAT_TO_UBYTE(texObj
->BorderColor
[0]),
931 FLOAT_TO_UBYTE(texObj
->BorderColor
[1]),
932 FLOAT_TO_UBYTE(texObj
->BorderColor
[2]));
933 vmesa
->regHTXnTRAH
[1] = FLOAT_TO_UBYTE(texObj
->BorderColor
[3]);
937 if (texUnit1
->LodBias
!= 0.0f
) {
938 GLuint b
= viaComputeLodBias(texUnit1
->LodBias
);
939 vmesa
->regHTXnTB
[1] &= ~HC_HTXnFLDs_MASK
;
940 vmesa
->regHTXnTB
[1] |= HC_HTXnFLDs_ConstLOD
;
941 vmesa
->regHTXnCLOD
[1] = (b
&0x1f) | (((~b
)&0x1f)<<10); /* FIXME */
944 if (!viaTexCombineState( vmesa
, texUnit1
->_CurrentCombine
, 1 )) {
945 if (VIA_DEBUG
& DEBUG_TEXTURE
)
946 fprintf(stderr
, "viaTexCombineState failed for unit 1\n");
952 vmesa
->regEnable
&= ~(HC_HenTXMP_MASK
| HC_HenTXCH_MASK
|
959 static void viaChooseColorState(GLcontext
*ctx
)
961 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
962 GLenum s
= ctx
->Color
.BlendSrcRGB
;
963 GLenum d
= ctx
->Color
.BlendDstRGB
;
965 /* The HW's blending equation is:
966 * (Ca * FCa + Cbias + Cb * FCb) << Cshift
969 if (ctx
->Color
.BlendEnabled
) {
970 vmesa
->regEnable
|= HC_HenABL_MASK
;
971 /* Ca -- always from source color.
973 vmesa
->regHABLCsat
= HC_HABLCsat_MASK
| HC_HABLCa_OPC
| HC_HABLCa_Csrc
;
974 /* Aa -- always from source alpha.
976 vmesa
->regHABLAsat
= HC_HABLAsat_MASK
| HC_HABLAa_OPA
| HC_HABLAa_Asrc
;
977 /* FCa -- depend on following condition.
978 * FAa -- depend on following condition.
984 vmesa
->regHABLCsat
|= HC_HABLFCa_OPC
| HC_HABLFCa_HABLRCa
;
985 vmesa
->regHABLAsat
|= HC_HABLFAa_OPA
| HC_HABLFAa_HABLFRA
;
986 vmesa
->regHABLRFCa
= 0x0;
987 vmesa
->regHABLRAa
= 0x0;
992 vmesa
->regHABLCsat
|= HC_HABLFCa_InvOPC
| HC_HABLFCa_HABLRCa
;
993 vmesa
->regHABLAsat
|= HC_HABLFAa_InvOPA
| HC_HABLFAa_HABLFRA
;
994 vmesa
->regHABLRFCa
= 0x0;
995 vmesa
->regHABLRAa
= 0x0;
1000 vmesa
->regHABLCsat
|= HC_HABLFCa_OPC
| HC_HABLFCa_Csrc
;
1001 vmesa
->regHABLAsat
|= HC_HABLFAa_OPA
| HC_HABLFAa_Asrc
;
1003 case GL_ONE_MINUS_SRC_COLOR
:
1004 /* (1, 1, 1, 1) - (Rs, Gs, Bs, As)
1006 vmesa
->regHABLCsat
|= HC_HABLFCa_InvOPC
| HC_HABLFCa_Csrc
;
1007 vmesa
->regHABLAsat
|= HC_HABLFAa_InvOPA
| HC_HABLFAa_Asrc
;
1012 vmesa
->regHABLCsat
|= HC_HABLFCa_OPC
| HC_HABLFCa_Cdst
;
1013 vmesa
->regHABLAsat
|= HC_HABLFAa_OPA
| HC_HABLFAa_Adst
;
1015 case GL_ONE_MINUS_DST_COLOR
:
1016 /* (1, 1, 1, 1) - (Rd, Gd, Bd, Ad)
1018 vmesa
->regHABLCsat
|= HC_HABLFCa_InvOPC
| HC_HABLFCa_Cdst
;
1019 vmesa
->regHABLAsat
|= HC_HABLFAa_InvOPA
| HC_HABLFAa_Adst
;
1024 vmesa
->regHABLCsat
|= HC_HABLFCa_OPC
| HC_HABLFCa_Asrc
;
1025 vmesa
->regHABLAsat
|= HC_HABLFAa_OPA
| HC_HABLFAa_Asrc
;
1027 case GL_ONE_MINUS_SRC_ALPHA
:
1028 /* (1, 1, 1, 1) - (As, As, As, As)
1030 vmesa
->regHABLCsat
|= HC_HABLFCa_InvOPC
| HC_HABLFCa_Asrc
;
1031 vmesa
->regHABLAsat
|= HC_HABLFAa_InvOPA
| HC_HABLFAa_Asrc
;
1035 if (vmesa
->viaScreen
->bitsPerPixel
== 16) {
1038 vmesa
->regHABLCsat
|= (HC_HABLFCa_InvOPC
|
1039 HC_HABLFCa_HABLRCa
);
1040 vmesa
->regHABLAsat
|= (HC_HABLFAa_InvOPA
|
1041 HC_HABLFAa_HABLFRA
);
1042 vmesa
->regHABLRFCa
= 0x0;
1043 vmesa
->regHABLRAa
= 0x0;
1048 vmesa
->regHABLCsat
|= HC_HABLFCa_OPC
| HC_HABLFCa_Adst
;
1049 vmesa
->regHABLAsat
|= HC_HABLFAa_OPA
| HC_HABLFAa_Adst
;
1053 case GL_ONE_MINUS_DST_ALPHA
:
1055 if (vmesa
->viaScreen
->bitsPerPixel
== 16) {
1056 /* (1, 1, 1, 1) - (1, 1, 1, 1) = (0, 0, 0, 0)
1058 vmesa
->regHABLCsat
|= HC_HABLFCa_OPC
| HC_HABLFCa_HABLRCa
;
1059 vmesa
->regHABLAsat
|= HC_HABLFAa_OPA
| HC_HABLFAa_HABLFRA
;
1060 vmesa
->regHABLRFCa
= 0x0;
1061 vmesa
->regHABLRAa
= 0x0;
1064 /* (1, 1, 1, 1) - (Ad, Ad, Ad, Ad)
1066 vmesa
->regHABLCsat
|= HC_HABLFCa_InvOPC
| HC_HABLFCa_Adst
;
1067 vmesa
->regHABLAsat
|= HC_HABLFAa_InvOPA
| HC_HABLFAa_Adst
;
1071 case GL_SRC_ALPHA_SATURATE
:
1073 if (vmesa
->viaScreen
->bitsPerPixel
== 16) {
1074 /* (f, f, f, 1), f = min(As, 1 - Ad) = min(As, 1 - 1) = 0
1075 * So (f, f, f, 1) = (0, 0, 0, 1)
1077 vmesa
->regHABLCsat
|= HC_HABLFCa_OPC
| HC_HABLFCa_HABLRCa
;
1078 vmesa
->regHABLAsat
|= (HC_HABLFAa_InvOPA
|
1079 HC_HABLFAa_HABLFRA
);
1080 vmesa
->regHABLRFCa
= 0x0;
1081 vmesa
->regHABLRAa
= 0x0;
1084 /* (f, f, f, 1), f = min(As, 1 - Ad)
1086 vmesa
->regHABLCsat
|= (HC_HABLFCa_OPC
|
1087 HC_HABLFCa_mimAsrcInvAdst
);
1088 vmesa
->regHABLAsat
|= (HC_HABLFAa_InvOPA
|
1089 HC_HABLFAa_HABLFRA
);
1090 vmesa
->regHABLRFCa
= 0x0;
1091 vmesa
->regHABLRAa
= 0x0;
1102 vmesa
->regHABLCsat
|= HC_HABLCbias_HABLRCbias
;
1103 vmesa
->regHABLAsat
|= HC_HABLAbias_HABLRAbias
;
1105 /* Cb -- always from destination color.
1107 vmesa
->regHABLCop
= HC_HABLCb_OPC
| HC_HABLCb_Cdst
;
1108 /* Ab -- always from destination alpha.
1110 vmesa
->regHABLAop
= HC_HABLAb_OPA
| HC_HABLAb_Adst
;
1111 /* FCb -- depend on following condition.
1117 vmesa
->regHABLCop
|= HC_HABLFCb_OPC
| HC_HABLFCb_HABLRCb
;
1118 vmesa
->regHABLAop
|= HC_HABLFAb_OPA
| HC_HABLFAb_HABLFRA
;
1119 vmesa
->regHABLRFCb
= 0x0;
1120 vmesa
->regHABLRAb
= 0x0;
1125 vmesa
->regHABLCop
|= HC_HABLFCb_InvOPC
| HC_HABLFCb_HABLRCb
;
1126 vmesa
->regHABLAop
|= HC_HABLFAb_InvOPA
| HC_HABLFAb_HABLFRA
;
1127 vmesa
->regHABLRFCb
= 0x0;
1128 vmesa
->regHABLRAb
= 0x0;
1133 vmesa
->regHABLCop
|= HC_HABLFCb_OPC
| HC_HABLFCb_Csrc
;
1134 vmesa
->regHABLAop
|= HC_HABLFAb_OPA
| HC_HABLFAb_Asrc
;
1136 case GL_ONE_MINUS_SRC_COLOR
:
1137 /* (1, 1, 1, 1) - (Rs, Gs, Bs, As)
1139 vmesa
->regHABLCop
|= HC_HABLFCb_InvOPC
| HC_HABLFCb_Csrc
;
1140 vmesa
->regHABLAop
|= HC_HABLFAb_InvOPA
| HC_HABLFAb_Asrc
;
1145 vmesa
->regHABLCop
|= HC_HABLFCb_OPC
| HC_HABLFCb_Cdst
;
1146 vmesa
->regHABLAop
|= HC_HABLFAb_OPA
| HC_HABLFAb_Adst
;
1148 case GL_ONE_MINUS_DST_COLOR
:
1149 /* (1, 1, 1, 1) - (Rd, Gd, Bd, Ad)
1151 vmesa
->regHABLCop
|= HC_HABLFCb_InvOPC
| HC_HABLFCb_Cdst
;
1152 vmesa
->regHABLAop
|= HC_HABLFAb_InvOPA
| HC_HABLFAb_Adst
;
1157 vmesa
->regHABLCop
|= HC_HABLFCb_OPC
| HC_HABLFCb_Asrc
;
1158 vmesa
->regHABLAop
|= HC_HABLFAb_OPA
| HC_HABLFAb_Asrc
;
1160 case GL_ONE_MINUS_SRC_ALPHA
:
1161 /* (1, 1, 1, 1) - (As, As, As, As)
1163 vmesa
->regHABLCop
|= HC_HABLFCb_InvOPC
| HC_HABLFCb_Asrc
;
1164 vmesa
->regHABLAop
|= HC_HABLFAb_InvOPA
| HC_HABLFAb_Asrc
;
1168 if (vmesa
->viaScreen
->bitsPerPixel
== 16) {
1171 vmesa
->regHABLCop
|= HC_HABLFCb_InvOPC
| HC_HABLFCb_HABLRCb
;
1172 vmesa
->regHABLAop
|= HC_HABLFAb_InvOPA
| HC_HABLFAb_HABLFRA
;
1173 vmesa
->regHABLRFCb
= 0x0;
1174 vmesa
->regHABLRAb
= 0x0;
1179 vmesa
->regHABLCop
|= HC_HABLFCb_OPC
| HC_HABLFCb_Adst
;
1180 vmesa
->regHABLAop
|= HC_HABLFAb_OPA
| HC_HABLFAb_Adst
;
1184 case GL_ONE_MINUS_DST_ALPHA
:
1186 if (vmesa
->viaScreen
->bitsPerPixel
== 16) {
1187 /* (1, 1, 1, 1) - (1, 1, 1, 1) = (0, 0, 0, 0)
1189 vmesa
->regHABLCop
|= HC_HABLFCb_OPC
| HC_HABLFCb_HABLRCb
;
1190 vmesa
->regHABLAop
|= HC_HABLFAb_OPA
| HC_HABLFAb_HABLFRA
;
1191 vmesa
->regHABLRFCb
= 0x0;
1192 vmesa
->regHABLRAb
= 0x0;
1195 /* (1, 1, 1, 1) - (Ad, Ad, Ad, Ad)
1197 vmesa
->regHABLCop
|= HC_HABLFCb_InvOPC
| HC_HABLFCb_Adst
;
1198 vmesa
->regHABLAop
|= HC_HABLFAb_InvOPA
| HC_HABLFAb_Adst
;
1203 vmesa
->regHABLCop
|= HC_HABLFCb_OPC
| HC_HABLFCb_HABLRCb
;
1204 vmesa
->regHABLAop
|= HC_HABLFAb_OPA
| HC_HABLFAb_HABLFRA
;
1205 vmesa
->regHABLRFCb
= 0x0;
1206 vmesa
->regHABLRAb
= 0x0;
1210 if (vmesa
->viaScreen
->bitsPerPixel
<= 16)
1211 vmesa
->regEnable
&= ~HC_HenDT_MASK
;
1215 vmesa
->regEnable
&= (~HC_HenABL_MASK
);
1218 if (ctx
->Color
.AlphaEnabled
) {
1219 vmesa
->regEnable
|= HC_HenAT_MASK
;
1220 vmesa
->regHATMD
= FLOAT_TO_UBYTE(ctx
->Color
.AlphaRef
) |
1221 ((ctx
->Color
.AlphaFunc
- GL_NEVER
) << 8);
1224 vmesa
->regEnable
&= (~HC_HenAT_MASK
);
1227 if (ctx
->Color
.DitherFlag
&& (vmesa
->viaScreen
->bitsPerPixel
< 32)) {
1228 if (ctx
->Color
.BlendEnabled
) {
1229 vmesa
->regEnable
&= ~HC_HenDT_MASK
;
1232 vmesa
->regEnable
|= HC_HenDT_MASK
;
1237 vmesa
->regEnable
&= ~HC_HenDT_MASK
;
1239 if (ctx
->Color
.ColorLogicOpEnabled
)
1240 vmesa
->regHROP
= ROP
[ctx
->Color
.LogicOp
& 0xF];
1242 vmesa
->regHROP
= HC_HROP_P
;
1244 vmesa
->regHFBBMSKL
= PACK_COLOR_888(ctx
->Color
.ColorMask
[0],
1245 ctx
->Color
.ColorMask
[1],
1246 ctx
->Color
.ColorMask
[2]);
1247 vmesa
->regHROP
|= ctx
->Color
.ColorMask
[3];
1249 if (ctx
->Color
.ColorMask
[3])
1250 vmesa
->regEnable
|= HC_HenAW_MASK
;
1252 vmesa
->regEnable
&= ~HC_HenAW_MASK
;
1255 static void viaChooseFogState(GLcontext
*ctx
)
1257 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
1259 if (ctx
->Fog
.Enabled
) {
1262 vmesa
->regEnable
|= HC_HenFOG_MASK
;
1264 /* Use fog equation 0 (OpenGL's default) & local fog.
1266 vmesa
->regHFogLF
= 0x0;
1268 r
= (GLubyte
)(ctx
->Fog
.Color
[0] * 255.0F
);
1269 g
= (GLubyte
)(ctx
->Fog
.Color
[1] * 255.0F
);
1270 b
= (GLubyte
)(ctx
->Fog
.Color
[2] * 255.0F
);
1271 a
= (GLubyte
)(ctx
->Fog
.Color
[3] * 255.0F
);
1272 vmesa
->regHFogCL
= (r
<< 16) | (g
<< 8) | b
;
1273 vmesa
->regHFogCH
= a
;
1276 vmesa
->regEnable
&= ~HC_HenFOG_MASK
;
1280 static void viaChooseDepthState(GLcontext
*ctx
)
1282 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
1283 if (ctx
->Depth
.Test
) {
1284 vmesa
->regEnable
|= HC_HenZT_MASK
;
1285 if (ctx
->Depth
.Mask
)
1286 vmesa
->regEnable
|= HC_HenZW_MASK
;
1288 vmesa
->regEnable
&= (~HC_HenZW_MASK
);
1289 vmesa
->regHZWTMD
= (ctx
->Depth
.Func
- GL_NEVER
) << 16;
1293 vmesa
->regEnable
&= ~HC_HenZT_MASK
;
1295 /*=* [DBG] racer : can't display cars in car selection menu *=*/
1296 /*if (ctx->Depth.Mask)
1297 vmesa->regEnable |= HC_HenZW_MASK;
1299 vmesa->regEnable &= (~HC_HenZW_MASK);*/
1300 vmesa
->regEnable
&= (~HC_HenZW_MASK
);
1304 static void viaChooseLineState(GLcontext
*ctx
)
1306 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
1308 if (ctx
->Line
.StippleFlag
) {
1309 vmesa
->regEnable
|= HC_HenLP_MASK
;
1310 vmesa
->regHLP
= ctx
->Line
.StipplePattern
;
1311 vmesa
->regHLPRF
= ctx
->Line
.StippleFactor
;
1314 vmesa
->regEnable
&= ~HC_HenLP_MASK
;
1318 static void viaChoosePolygonState(GLcontext
*ctx
)
1320 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
1323 /* Polygon stipple is broken - see via_state.c
1325 if (ctx
->Polygon
.StippleFlag
) {
1326 vmesa
->regEnable
|= HC_HenSP_MASK
;
1329 vmesa
->regEnable
&= ~HC_HenSP_MASK
;
1332 FALLBACK(vmesa
, VIA_FALLBACK_POLY_STIPPLE
,
1333 ctx
->Polygon
.StippleFlag
);
1336 if (ctx
->Polygon
.CullFlag
) {
1337 vmesa
->regEnable
|= HC_HenFBCull_MASK
;
1340 vmesa
->regEnable
&= ~HC_HenFBCull_MASK
;
1344 static void viaChooseStencilState(GLcontext
*ctx
)
1346 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
1348 if (ctx
->Stencil
.Enabled
) {
1351 vmesa
->regEnable
|= HC_HenST_MASK
;
1352 temp
= (ctx
->Stencil
.Ref
[0] & 0xFF) << HC_HSTREF_SHIFT
;
1353 temp
|= 0xFF << HC_HSTOPMSK_SHIFT
;
1354 temp
|= (ctx
->Stencil
.ValueMask
[0] & 0xFF);
1355 vmesa
->regHSTREF
= temp
;
1357 temp
= (ctx
->Stencil
.Function
[0] - GL_NEVER
) << 16;
1359 switch (ctx
->Stencil
.FailFunc
[0]) {
1361 temp
|= HC_HSTOPSF_KEEP
;
1364 temp
|= HC_HSTOPSF_ZERO
;
1367 temp
|= HC_HSTOPSF_REPLACE
;
1370 temp
|= HC_HSTOPSF_INVERT
;
1373 temp
|= HC_HSTOPSF_INCR
;
1376 temp
|= HC_HSTOPSF_DECR
;
1380 switch (ctx
->Stencil
.ZFailFunc
[0]) {
1382 temp
|= HC_HSTOPSPZF_KEEP
;
1385 temp
|= HC_HSTOPSPZF_ZERO
;
1388 temp
|= HC_HSTOPSPZF_REPLACE
;
1391 temp
|= HC_HSTOPSPZF_INVERT
;
1394 temp
|= HC_HSTOPSPZF_INCR
;
1397 temp
|= HC_HSTOPSPZF_DECR
;
1401 switch (ctx
->Stencil
.ZPassFunc
[0]) {
1403 temp
|= HC_HSTOPSPZP_KEEP
;
1406 temp
|= HC_HSTOPSPZP_ZERO
;
1409 temp
|= HC_HSTOPSPZP_REPLACE
;
1412 temp
|= HC_HSTOPSPZP_INVERT
;
1415 temp
|= HC_HSTOPSPZP_INCR
;
1418 temp
|= HC_HSTOPSPZP_DECR
;
1421 vmesa
->regHSTMD
= temp
;
1424 vmesa
->regEnable
&= ~HC_HenST_MASK
;
1430 static void viaChooseTriangle(GLcontext
*ctx
)
1432 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
1434 if (ctx
->Polygon
.CullFlag
== GL_TRUE
) {
1435 switch (ctx
->Polygon
.CullFaceMode
) {
1437 if (ctx
->Polygon
.FrontFace
== GL_CCW
)
1438 vmesa
->regCmdB
|= HC_HBFace_MASK
;
1440 vmesa
->regCmdB
&= ~HC_HBFace_MASK
;
1443 if (ctx
->Polygon
.FrontFace
== GL_CW
)
1444 vmesa
->regCmdB
|= HC_HBFace_MASK
;
1446 vmesa
->regCmdB
&= ~HC_HBFace_MASK
;
1448 case GL_FRONT_AND_BACK
:
1454 void viaValidateState( GLcontext
*ctx
)
1456 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
1458 if (vmesa
->newState
& _NEW_TEXTURE
) {
1459 GLboolean ok
= (viaChooseTextureState(ctx
) &&
1460 viaUpdateTextureState(ctx
));
1462 FALLBACK(vmesa
, VIA_FALLBACK_TEXTURE
, !ok
);
1465 if (vmesa
->newState
& _NEW_COLOR
)
1466 viaChooseColorState(ctx
);
1468 if (vmesa
->newState
& _NEW_DEPTH
)
1469 viaChooseDepthState(ctx
);
1471 if (vmesa
->newState
& _NEW_FOG
)
1472 viaChooseFogState(ctx
);
1474 if (vmesa
->newState
& _NEW_LINE
)
1475 viaChooseLineState(ctx
);
1477 if (vmesa
->newState
& (_NEW_POLYGON
| _NEW_POLYGONSTIPPLE
)) {
1478 viaChoosePolygonState(ctx
);
1479 viaChooseTriangle(ctx
);
1482 if ((vmesa
->newState
& _NEW_STENCIL
) && vmesa
->have_hw_stencil
)
1483 viaChooseStencilState(ctx
);
1485 if (ctx
->_TriangleCaps
& DD_SEPARATE_SPECULAR
)
1486 vmesa
->regEnable
|= HC_HenCS_MASK
;
1488 vmesa
->regEnable
&= ~HC_HenCS_MASK
;
1490 if (ctx
->Point
.SmoothFlag
||
1491 ctx
->Line
.SmoothFlag
||
1492 ctx
->Polygon
.SmoothFlag
)
1493 vmesa
->regEnable
|= HC_HenAA_MASK
;
1495 vmesa
->regEnable
&= ~HC_HenAA_MASK
;
1497 vmesa
->newEmitState
|= vmesa
->newState
;
1498 vmesa
->newState
= 0;
1501 static void viaInvalidateState(GLcontext
*ctx
, GLuint newState
)
1503 struct via_context
*vmesa
= VIA_CONTEXT(ctx
);
1505 VIA_FINISH_PRIM( vmesa
);
1506 vmesa
->newState
|= newState
;
1508 _swrast_InvalidateState(ctx
, newState
);
1509 _swsetup_InvalidateState(ctx
, newState
);
1510 _vbo_InvalidateState(ctx
, newState
);
1511 _tnl_InvalidateState(ctx
, newState
);
1514 void viaInitStateFuncs(GLcontext
*ctx
)
1516 /* Callbacks for internal Mesa events.
1518 ctx
->Driver
.UpdateState
= viaInvalidateState
;
1522 ctx
->Driver
.BlendEquationSeparate
= viaBlendEquationSeparate
;
1523 ctx
->Driver
.BlendFuncSeparate
= viaBlendFuncSeparate
;
1524 ctx
->Driver
.ClearColor
= viaClearColor
;
1525 ctx
->Driver
.ColorMask
= viaColorMask
;
1526 ctx
->Driver
.DrawBuffer
= viaDrawBuffer
;
1527 ctx
->Driver
.RenderMode
= viaRenderMode
;
1528 ctx
->Driver
.Scissor
= viaScissor
;
1529 ctx
->Driver
.DepthRange
= viaDepthRange
;
1530 ctx
->Driver
.Viewport
= viaViewport
;
1531 ctx
->Driver
.Enable
= viaEnable
;
1533 /* XXX this should go away */
1534 ctx
->Driver
.ResizeBuffers
= viaReAllocateBuffers
;