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Merge remote branch 'origin/master' into radeon-rewrite
[mesa.git] / src / mesa / drivers / dri / r200 / r200_texstate.c
1 /*
2 Copyright (C) The Weather Channel, Inc. 2002. All Rights Reserved.
3
4 The Weather Channel (TM) funded Tungsten Graphics to develop the
5 initial release of the Radeon 8500 driver under the XFree86 license.
6 This notice must be preserved.
7
8 Permission is hereby granted, free of charge, to any person obtaining
9 a copy of this software and associated documentation files (the
10 "Software"), to deal in the Software without restriction, including
11 without limitation the rights to use, copy, modify, merge, publish,
12 distribute, sublicense, and/or sell copies of the Software, and to
13 permit persons to whom the Software is furnished to do so, subject to
14 the following conditions:
15
16 The above copyright notice and this permission notice (including the
17 next paragraph) shall be included in all copies or substantial
18 portions of the Software.
19
20 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
21 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
23 IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
24 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
25 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
26 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27
28 **************************************************************************/
29
30 /*
31 * Authors:
32 * Keith Whitwell <keith@tungstengraphics.com>
33 */
34
35 #include "main/glheader.h"
36 #include "main/imports.h"
37 #include "main/context.h"
38 #include "main/macros.h"
39 #include "main/texformat.h"
40 #include "main/texobj.h"
41 #include "main/enums.h"
42
43 #include "radeon_common.h"
44 #include "radeon_mipmap_tree.h"
45 #include "r200_context.h"
46 #include "r200_state.h"
47 #include "r200_ioctl.h"
48 #include "r200_swtcl.h"
49 #include "r200_tex.h"
50 #include "r200_tcl.h"
51
52
53 #define R200_TXFORMAT_A8 R200_TXFORMAT_I8
54 #define R200_TXFORMAT_L8 R200_TXFORMAT_I8
55 #define R200_TXFORMAT_AL88 R200_TXFORMAT_AI88
56 #define R200_TXFORMAT_YCBCR R200_TXFORMAT_YVYU422
57 #define R200_TXFORMAT_YCBCR_REV R200_TXFORMAT_VYUY422
58 #define R200_TXFORMAT_RGB_DXT1 R200_TXFORMAT_DXT1
59 #define R200_TXFORMAT_RGBA_DXT1 R200_TXFORMAT_DXT1
60 #define R200_TXFORMAT_RGBA_DXT3 R200_TXFORMAT_DXT23
61 #define R200_TXFORMAT_RGBA_DXT5 R200_TXFORMAT_DXT45
62
63 #define _COLOR(f) \
64 [ MESA_FORMAT_ ## f ] = { R200_TXFORMAT_ ## f, 0 }
65 #define _COLOR_REV(f) \
66 [ MESA_FORMAT_ ## f ## _REV ] = { R200_TXFORMAT_ ## f, 0 }
67 #define _ALPHA(f) \
68 [ MESA_FORMAT_ ## f ] = { R200_TXFORMAT_ ## f | R200_TXFORMAT_ALPHA_IN_MAP, 0 }
69 #define _ALPHA_REV(f) \
70 [ MESA_FORMAT_ ## f ## _REV ] = { R200_TXFORMAT_ ## f | R200_TXFORMAT_ALPHA_IN_MAP, 0 }
71 #define _YUV(f) \
72 [ MESA_FORMAT_ ## f ] = { R200_TXFORMAT_ ## f, R200_YUV_TO_RGB }
73 #define _INVALID(f) \
74 [ MESA_FORMAT_ ## f ] = { 0xffffffff, 0 }
75 #define VALID_FORMAT(f) ( ((f) <= MESA_FORMAT_RGBA_DXT5) \
76 && (tx_table_be[f].format != 0xffffffff) )
77
78 struct tx_table {
79 GLuint format, filter;
80 };
81
82 static const struct tx_table tx_table_be[] =
83 {
84 [ MESA_FORMAT_RGBA8888 ] = { R200_TXFORMAT_ABGR8888 | R200_TXFORMAT_ALPHA_IN_MAP, 0 },
85 _ALPHA_REV(RGBA8888),
86 _ALPHA(ARGB8888),
87 _ALPHA_REV(ARGB8888),
88 _INVALID(RGB888),
89 _COLOR(RGB565),
90 _COLOR_REV(RGB565),
91 _ALPHA(ARGB4444),
92 _ALPHA_REV(ARGB4444),
93 _ALPHA(ARGB1555),
94 _ALPHA_REV(ARGB1555),
95 _ALPHA(AL88),
96 _ALPHA_REV(AL88),
97 _ALPHA(A8),
98 _COLOR(L8),
99 _ALPHA(I8),
100 _INVALID(CI8),
101 _YUV(YCBCR),
102 _YUV(YCBCR_REV),
103 _INVALID(RGB_FXT1),
104 _INVALID(RGBA_FXT1),
105 _COLOR(RGB_DXT1),
106 _ALPHA(RGBA_DXT1),
107 _ALPHA(RGBA_DXT3),
108 _ALPHA(RGBA_DXT5),
109 };
110
111 static const struct tx_table tx_table_le[] =
112 {
113 _ALPHA(RGBA8888),
114 [ MESA_FORMAT_RGBA8888_REV ] = { R200_TXFORMAT_ABGR8888 | R200_TXFORMAT_ALPHA_IN_MAP, 0 },
115 _ALPHA(ARGB8888),
116 _ALPHA_REV(ARGB8888),
117 [ MESA_FORMAT_RGB888 ] = { R200_TXFORMAT_ARGB8888, 0 },
118 _COLOR(RGB565),
119 _COLOR_REV(RGB565),
120 _ALPHA(ARGB4444),
121 _ALPHA_REV(ARGB4444),
122 _ALPHA(ARGB1555),
123 _ALPHA_REV(ARGB1555),
124 _ALPHA(AL88),
125 _ALPHA_REV(AL88),
126 _ALPHA(A8),
127 _COLOR(L8),
128 _ALPHA(I8),
129 _INVALID(CI8),
130 _YUV(YCBCR),
131 _YUV(YCBCR_REV),
132 _INVALID(RGB_FXT1),
133 _INVALID(RGBA_FXT1),
134 _COLOR(RGB_DXT1),
135 _ALPHA(RGBA_DXT1),
136 _ALPHA(RGBA_DXT3),
137 _ALPHA(RGBA_DXT5),
138 };
139
140 #undef _COLOR
141 #undef _ALPHA
142 #undef _INVALID
143
144 /* ================================================================
145 * Texture combine functions
146 */
147
148 /* GL_ARB_texture_env_combine support
149 */
150
151 /* The color tables have combine functions for GL_SRC_COLOR,
152 * GL_ONE_MINUS_SRC_COLOR, GL_SRC_ALPHA and GL_ONE_MINUS_SRC_ALPHA.
153 */
154 static GLuint r200_register_color[][R200_MAX_TEXTURE_UNITS] =
155 {
156 {
157 R200_TXC_ARG_A_R0_COLOR,
158 R200_TXC_ARG_A_R1_COLOR,
159 R200_TXC_ARG_A_R2_COLOR,
160 R200_TXC_ARG_A_R3_COLOR,
161 R200_TXC_ARG_A_R4_COLOR,
162 R200_TXC_ARG_A_R5_COLOR
163 },
164 {
165 R200_TXC_ARG_A_R0_COLOR | R200_TXC_COMP_ARG_A,
166 R200_TXC_ARG_A_R1_COLOR | R200_TXC_COMP_ARG_A,
167 R200_TXC_ARG_A_R2_COLOR | R200_TXC_COMP_ARG_A,
168 R200_TXC_ARG_A_R3_COLOR | R200_TXC_COMP_ARG_A,
169 R200_TXC_ARG_A_R4_COLOR | R200_TXC_COMP_ARG_A,
170 R200_TXC_ARG_A_R5_COLOR | R200_TXC_COMP_ARG_A
171 },
172 {
173 R200_TXC_ARG_A_R0_ALPHA,
174 R200_TXC_ARG_A_R1_ALPHA,
175 R200_TXC_ARG_A_R2_ALPHA,
176 R200_TXC_ARG_A_R3_ALPHA,
177 R200_TXC_ARG_A_R4_ALPHA,
178 R200_TXC_ARG_A_R5_ALPHA
179 },
180 {
181 R200_TXC_ARG_A_R0_ALPHA | R200_TXC_COMP_ARG_A,
182 R200_TXC_ARG_A_R1_ALPHA | R200_TXC_COMP_ARG_A,
183 R200_TXC_ARG_A_R2_ALPHA | R200_TXC_COMP_ARG_A,
184 R200_TXC_ARG_A_R3_ALPHA | R200_TXC_COMP_ARG_A,
185 R200_TXC_ARG_A_R4_ALPHA | R200_TXC_COMP_ARG_A,
186 R200_TXC_ARG_A_R5_ALPHA | R200_TXC_COMP_ARG_A
187 },
188 };
189
190 static GLuint r200_tfactor_color[] =
191 {
192 R200_TXC_ARG_A_TFACTOR_COLOR,
193 R200_TXC_ARG_A_TFACTOR_COLOR | R200_TXC_COMP_ARG_A,
194 R200_TXC_ARG_A_TFACTOR_ALPHA,
195 R200_TXC_ARG_A_TFACTOR_ALPHA | R200_TXC_COMP_ARG_A
196 };
197
198 static GLuint r200_tfactor1_color[] =
199 {
200 R200_TXC_ARG_A_TFACTOR1_COLOR,
201 R200_TXC_ARG_A_TFACTOR1_COLOR | R200_TXC_COMP_ARG_A,
202 R200_TXC_ARG_A_TFACTOR1_ALPHA,
203 R200_TXC_ARG_A_TFACTOR1_ALPHA | R200_TXC_COMP_ARG_A
204 };
205
206 static GLuint r200_primary_color[] =
207 {
208 R200_TXC_ARG_A_DIFFUSE_COLOR,
209 R200_TXC_ARG_A_DIFFUSE_COLOR | R200_TXC_COMP_ARG_A,
210 R200_TXC_ARG_A_DIFFUSE_ALPHA,
211 R200_TXC_ARG_A_DIFFUSE_ALPHA | R200_TXC_COMP_ARG_A
212 };
213
214 /* GL_ZERO table - indices 0-3
215 * GL_ONE table - indices 1-4
216 */
217 static GLuint r200_zero_color[] =
218 {
219 R200_TXC_ARG_A_ZERO,
220 R200_TXC_ARG_A_ZERO | R200_TXC_COMP_ARG_A,
221 R200_TXC_ARG_A_ZERO,
222 R200_TXC_ARG_A_ZERO | R200_TXC_COMP_ARG_A,
223 R200_TXC_ARG_A_ZERO
224 };
225
226 /* The alpha tables only have GL_SRC_ALPHA and GL_ONE_MINUS_SRC_ALPHA.
227 */
228 static GLuint r200_register_alpha[][R200_MAX_TEXTURE_UNITS] =
229 {
230 {
231 R200_TXA_ARG_A_R0_ALPHA,
232 R200_TXA_ARG_A_R1_ALPHA,
233 R200_TXA_ARG_A_R2_ALPHA,
234 R200_TXA_ARG_A_R3_ALPHA,
235 R200_TXA_ARG_A_R4_ALPHA,
236 R200_TXA_ARG_A_R5_ALPHA
237 },
238 {
239 R200_TXA_ARG_A_R0_ALPHA | R200_TXA_COMP_ARG_A,
240 R200_TXA_ARG_A_R1_ALPHA | R200_TXA_COMP_ARG_A,
241 R200_TXA_ARG_A_R2_ALPHA | R200_TXA_COMP_ARG_A,
242 R200_TXA_ARG_A_R3_ALPHA | R200_TXA_COMP_ARG_A,
243 R200_TXA_ARG_A_R4_ALPHA | R200_TXA_COMP_ARG_A,
244 R200_TXA_ARG_A_R5_ALPHA | R200_TXA_COMP_ARG_A
245 },
246 };
247
248 static GLuint r200_tfactor_alpha[] =
249 {
250 R200_TXA_ARG_A_TFACTOR_ALPHA,
251 R200_TXA_ARG_A_TFACTOR_ALPHA | R200_TXA_COMP_ARG_A
252 };
253
254 static GLuint r200_tfactor1_alpha[] =
255 {
256 R200_TXA_ARG_A_TFACTOR1_ALPHA,
257 R200_TXA_ARG_A_TFACTOR1_ALPHA | R200_TXA_COMP_ARG_A
258 };
259
260 static GLuint r200_primary_alpha[] =
261 {
262 R200_TXA_ARG_A_DIFFUSE_ALPHA,
263 R200_TXA_ARG_A_DIFFUSE_ALPHA | R200_TXA_COMP_ARG_A
264 };
265
266 /* GL_ZERO table - indices 0-1
267 * GL_ONE table - indices 1-2
268 */
269 static GLuint r200_zero_alpha[] =
270 {
271 R200_TXA_ARG_A_ZERO,
272 R200_TXA_ARG_A_ZERO | R200_TXA_COMP_ARG_A,
273 R200_TXA_ARG_A_ZERO,
274 };
275
276
277 /* Extract the arg from slot A, shift it into the correct argument slot
278 * and set the corresponding complement bit.
279 */
280 #define R200_COLOR_ARG( n, arg ) \
281 do { \
282 color_combine |= \
283 ((color_arg[n] & R200_TXC_ARG_A_MASK) \
284 << R200_TXC_ARG_##arg##_SHIFT); \
285 color_combine |= \
286 ((color_arg[n] >> R200_TXC_COMP_ARG_A_SHIFT) \
287 << R200_TXC_COMP_ARG_##arg##_SHIFT); \
288 } while (0)
289
290 #define R200_ALPHA_ARG( n, arg ) \
291 do { \
292 alpha_combine |= \
293 ((alpha_arg[n] & R200_TXA_ARG_A_MASK) \
294 << R200_TXA_ARG_##arg##_SHIFT); \
295 alpha_combine |= \
296 ((alpha_arg[n] >> R200_TXA_COMP_ARG_A_SHIFT) \
297 << R200_TXA_COMP_ARG_##arg##_SHIFT); \
298 } while (0)
299
300
301 /* ================================================================
302 * Texture unit state management
303 */
304
305 static GLboolean r200UpdateTextureEnv( GLcontext *ctx, int unit, int slot, GLuint replaceargs )
306 {
307 r200ContextPtr rmesa = R200_CONTEXT(ctx);
308 const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
309 GLuint color_combine, alpha_combine;
310 GLuint color_scale = rmesa->hw.pix[slot].cmd[PIX_PP_TXCBLEND2] &
311 ~(R200_TXC_SCALE_MASK | R200_TXC_OUTPUT_REG_MASK | R200_TXC_TFACTOR_SEL_MASK |
312 R200_TXC_TFACTOR1_SEL_MASK);
313 GLuint alpha_scale = rmesa->hw.pix[slot].cmd[PIX_PP_TXABLEND2] &
314 ~(R200_TXA_DOT_ALPHA | R200_TXA_SCALE_MASK | R200_TXA_OUTPUT_REG_MASK |
315 R200_TXA_TFACTOR_SEL_MASK | R200_TXA_TFACTOR1_SEL_MASK);
316
317 /* texUnit->_Current can be NULL if and only if the texture unit is
318 * not actually enabled.
319 */
320 assert( (texUnit->_ReallyEnabled == 0)
321 || (texUnit->_Current != NULL) );
322
323 if ( R200_DEBUG & DEBUG_TEXTURE ) {
324 fprintf( stderr, "%s( %p, %d )\n", __FUNCTION__, (void *)ctx, unit );
325 }
326
327 /* Set the texture environment state. Isn't this nice and clean?
328 * The chip will automagically set the texture alpha to 0xff when
329 * the texture format does not include an alpha component. This
330 * reduces the amount of special-casing we have to do, alpha-only
331 * textures being a notable exception.
332 */
333
334 color_scale |= ((rmesa->state.texture.unit[unit].outputreg + 1) << R200_TXC_OUTPUT_REG_SHIFT) |
335 (unit << R200_TXC_TFACTOR_SEL_SHIFT) |
336 (replaceargs << R200_TXC_TFACTOR1_SEL_SHIFT);
337 alpha_scale |= ((rmesa->state.texture.unit[unit].outputreg + 1) << R200_TXA_OUTPUT_REG_SHIFT) |
338 (unit << R200_TXA_TFACTOR_SEL_SHIFT) |
339 (replaceargs << R200_TXA_TFACTOR1_SEL_SHIFT);
340
341 if ( !texUnit->_ReallyEnabled ) {
342 assert( unit == 0);
343 color_combine = R200_TXC_ARG_A_ZERO | R200_TXC_ARG_B_ZERO
344 | R200_TXC_ARG_C_DIFFUSE_COLOR | R200_TXC_OP_MADD;
345 alpha_combine = R200_TXA_ARG_A_ZERO | R200_TXA_ARG_B_ZERO
346 | R200_TXA_ARG_C_DIFFUSE_ALPHA | R200_TXA_OP_MADD;
347 }
348 else {
349 GLuint color_arg[3], alpha_arg[3];
350 GLuint i;
351 const GLuint numColorArgs = texUnit->_CurrentCombine->_NumArgsRGB;
352 const GLuint numAlphaArgs = texUnit->_CurrentCombine->_NumArgsA;
353 GLuint RGBshift = texUnit->_CurrentCombine->ScaleShiftRGB;
354 GLuint Ashift = texUnit->_CurrentCombine->ScaleShiftA;
355
356
357 const GLint replaceoprgb =
358 ctx->Texture.Unit[replaceargs]._CurrentCombine->OperandRGB[0] - GL_SRC_COLOR;
359 const GLint replaceopa =
360 ctx->Texture.Unit[replaceargs]._CurrentCombine->OperandA[0] - GL_SRC_ALPHA;
361
362 /* Step 1:
363 * Extract the color and alpha combine function arguments.
364 */
365 for ( i = 0 ; i < numColorArgs ; i++ ) {
366 GLint op = texUnit->_CurrentCombine->OperandRGB[i] - GL_SRC_COLOR;
367 const GLint srcRGBi = texUnit->_CurrentCombine->SourceRGB[i];
368 assert(op >= 0);
369 assert(op <= 3);
370 switch ( srcRGBi ) {
371 case GL_TEXTURE:
372 color_arg[i] = r200_register_color[op][unit];
373 break;
374 case GL_CONSTANT:
375 color_arg[i] = r200_tfactor_color[op];
376 break;
377 case GL_PRIMARY_COLOR:
378 color_arg[i] = r200_primary_color[op];
379 break;
380 case GL_PREVIOUS:
381 if (replaceargs != unit) {
382 const GLint srcRGBreplace =
383 ctx->Texture.Unit[replaceargs]._CurrentCombine->SourceRGB[0];
384 if (op >= 2) {
385 op = op ^ replaceopa;
386 }
387 else {
388 op = op ^ replaceoprgb;
389 }
390 switch (srcRGBreplace) {
391 case GL_TEXTURE:
392 color_arg[i] = r200_register_color[op][replaceargs];
393 break;
394 case GL_CONSTANT:
395 color_arg[i] = r200_tfactor1_color[op];
396 break;
397 case GL_PRIMARY_COLOR:
398 color_arg[i] = r200_primary_color[op];
399 break;
400 case GL_PREVIOUS:
401 if (slot == 0)
402 color_arg[i] = r200_primary_color[op];
403 else
404 color_arg[i] = r200_register_color[op]
405 [rmesa->state.texture.unit[replaceargs - 1].outputreg];
406 break;
407 case GL_ZERO:
408 color_arg[i] = r200_zero_color[op];
409 break;
410 case GL_ONE:
411 color_arg[i] = r200_zero_color[op+1];
412 break;
413 case GL_TEXTURE0:
414 case GL_TEXTURE1:
415 case GL_TEXTURE2:
416 case GL_TEXTURE3:
417 case GL_TEXTURE4:
418 case GL_TEXTURE5:
419 color_arg[i] = r200_register_color[op][srcRGBreplace - GL_TEXTURE0];
420 break;
421 default:
422 return GL_FALSE;
423 }
424 }
425 else {
426 if (slot == 0)
427 color_arg[i] = r200_primary_color[op];
428 else
429 color_arg[i] = r200_register_color[op]
430 [rmesa->state.texture.unit[unit - 1].outputreg];
431 }
432 break;
433 case GL_ZERO:
434 color_arg[i] = r200_zero_color[op];
435 break;
436 case GL_ONE:
437 color_arg[i] = r200_zero_color[op+1];
438 break;
439 case GL_TEXTURE0:
440 case GL_TEXTURE1:
441 case GL_TEXTURE2:
442 case GL_TEXTURE3:
443 case GL_TEXTURE4:
444 case GL_TEXTURE5:
445 color_arg[i] = r200_register_color[op][srcRGBi - GL_TEXTURE0];
446 break;
447 default:
448 return GL_FALSE;
449 }
450 }
451
452 for ( i = 0 ; i < numAlphaArgs ; i++ ) {
453 GLint op = texUnit->_CurrentCombine->OperandA[i] - GL_SRC_ALPHA;
454 const GLint srcAi = texUnit->_CurrentCombine->SourceA[i];
455 assert(op >= 0);
456 assert(op <= 1);
457 switch ( srcAi ) {
458 case GL_TEXTURE:
459 alpha_arg[i] = r200_register_alpha[op][unit];
460 break;
461 case GL_CONSTANT:
462 alpha_arg[i] = r200_tfactor_alpha[op];
463 break;
464 case GL_PRIMARY_COLOR:
465 alpha_arg[i] = r200_primary_alpha[op];
466 break;
467 case GL_PREVIOUS:
468 if (replaceargs != unit) {
469 const GLint srcAreplace =
470 ctx->Texture.Unit[replaceargs]._CurrentCombine->SourceA[0];
471 op = op ^ replaceopa;
472 switch (srcAreplace) {
473 case GL_TEXTURE:
474 alpha_arg[i] = r200_register_alpha[op][replaceargs];
475 break;
476 case GL_CONSTANT:
477 alpha_arg[i] = r200_tfactor1_alpha[op];
478 break;
479 case GL_PRIMARY_COLOR:
480 alpha_arg[i] = r200_primary_alpha[op];
481 break;
482 case GL_PREVIOUS:
483 if (slot == 0)
484 alpha_arg[i] = r200_primary_alpha[op];
485 else
486 alpha_arg[i] = r200_register_alpha[op]
487 [rmesa->state.texture.unit[replaceargs - 1].outputreg];
488 break;
489 case GL_ZERO:
490 alpha_arg[i] = r200_zero_alpha[op];
491 break;
492 case GL_ONE:
493 alpha_arg[i] = r200_zero_alpha[op+1];
494 break;
495 case GL_TEXTURE0:
496 case GL_TEXTURE1:
497 case GL_TEXTURE2:
498 case GL_TEXTURE3:
499 case GL_TEXTURE4:
500 case GL_TEXTURE5:
501 alpha_arg[i] = r200_register_alpha[op][srcAreplace - GL_TEXTURE0];
502 break;
503 default:
504 return GL_FALSE;
505 }
506 }
507 else {
508 if (slot == 0)
509 alpha_arg[i] = r200_primary_alpha[op];
510 else
511 alpha_arg[i] = r200_register_alpha[op]
512 [rmesa->state.texture.unit[unit - 1].outputreg];
513 }
514 break;
515 case GL_ZERO:
516 alpha_arg[i] = r200_zero_alpha[op];
517 break;
518 case GL_ONE:
519 alpha_arg[i] = r200_zero_alpha[op+1];
520 break;
521 case GL_TEXTURE0:
522 case GL_TEXTURE1:
523 case GL_TEXTURE2:
524 case GL_TEXTURE3:
525 case GL_TEXTURE4:
526 case GL_TEXTURE5:
527 alpha_arg[i] = r200_register_alpha[op][srcAi - GL_TEXTURE0];
528 break;
529 default:
530 return GL_FALSE;
531 }
532 }
533
534 /* Step 2:
535 * Build up the color and alpha combine functions.
536 */
537 switch ( texUnit->_CurrentCombine->ModeRGB ) {
538 case GL_REPLACE:
539 color_combine = (R200_TXC_ARG_A_ZERO |
540 R200_TXC_ARG_B_ZERO |
541 R200_TXC_OP_MADD);
542 R200_COLOR_ARG( 0, C );
543 break;
544 case GL_MODULATE:
545 color_combine = (R200_TXC_ARG_C_ZERO |
546 R200_TXC_OP_MADD);
547 R200_COLOR_ARG( 0, A );
548 R200_COLOR_ARG( 1, B );
549 break;
550 case GL_ADD:
551 color_combine = (R200_TXC_ARG_B_ZERO |
552 R200_TXC_COMP_ARG_B |
553 R200_TXC_OP_MADD);
554 R200_COLOR_ARG( 0, A );
555 R200_COLOR_ARG( 1, C );
556 break;
557 case GL_ADD_SIGNED:
558 color_combine = (R200_TXC_ARG_B_ZERO |
559 R200_TXC_COMP_ARG_B |
560 R200_TXC_BIAS_ARG_C | /* new */
561 R200_TXC_OP_MADD); /* was ADDSIGNED */
562 R200_COLOR_ARG( 0, A );
563 R200_COLOR_ARG( 1, C );
564 break;
565 case GL_SUBTRACT:
566 color_combine = (R200_TXC_ARG_B_ZERO |
567 R200_TXC_COMP_ARG_B |
568 R200_TXC_NEG_ARG_C |
569 R200_TXC_OP_MADD);
570 R200_COLOR_ARG( 0, A );
571 R200_COLOR_ARG( 1, C );
572 break;
573 case GL_INTERPOLATE:
574 color_combine = (R200_TXC_OP_LERP);
575 R200_COLOR_ARG( 0, B );
576 R200_COLOR_ARG( 1, A );
577 R200_COLOR_ARG( 2, C );
578 break;
579
580 case GL_DOT3_RGB_EXT:
581 case GL_DOT3_RGBA_EXT:
582 /* The EXT version of the DOT3 extension does not support the
583 * scale factor, but the ARB version (and the version in OpenGL
584 * 1.3) does.
585 */
586 RGBshift = 0;
587 /* FALLTHROUGH */
588
589 case GL_DOT3_RGB:
590 case GL_DOT3_RGBA:
591 /* DOT3 works differently on R200 than on R100. On R100, just
592 * setting the DOT3 mode did everything for you. On R200, the
593 * driver has to enable the biasing and scale in the inputs to
594 * put them in the proper [-1,1] range. This is what the 4x and
595 * the -0.5 in the DOT3 spec do. The post-scale is then set
596 * normally.
597 */
598
599 color_combine = (R200_TXC_ARG_C_ZERO |
600 R200_TXC_OP_DOT3 |
601 R200_TXC_BIAS_ARG_A |
602 R200_TXC_BIAS_ARG_B |
603 R200_TXC_SCALE_ARG_A |
604 R200_TXC_SCALE_ARG_B);
605 R200_COLOR_ARG( 0, A );
606 R200_COLOR_ARG( 1, B );
607 break;
608
609 case GL_MODULATE_ADD_ATI:
610 color_combine = (R200_TXC_OP_MADD);
611 R200_COLOR_ARG( 0, A );
612 R200_COLOR_ARG( 1, C );
613 R200_COLOR_ARG( 2, B );
614 break;
615 case GL_MODULATE_SIGNED_ADD_ATI:
616 color_combine = (R200_TXC_BIAS_ARG_C | /* new */
617 R200_TXC_OP_MADD); /* was ADDSIGNED */
618 R200_COLOR_ARG( 0, A );
619 R200_COLOR_ARG( 1, C );
620 R200_COLOR_ARG( 2, B );
621 break;
622 case GL_MODULATE_SUBTRACT_ATI:
623 color_combine = (R200_TXC_NEG_ARG_C |
624 R200_TXC_OP_MADD);
625 R200_COLOR_ARG( 0, A );
626 R200_COLOR_ARG( 1, C );
627 R200_COLOR_ARG( 2, B );
628 break;
629 default:
630 return GL_FALSE;
631 }
632
633 switch ( texUnit->_CurrentCombine->ModeA ) {
634 case GL_REPLACE:
635 alpha_combine = (R200_TXA_ARG_A_ZERO |
636 R200_TXA_ARG_B_ZERO |
637 R200_TXA_OP_MADD);
638 R200_ALPHA_ARG( 0, C );
639 break;
640 case GL_MODULATE:
641 alpha_combine = (R200_TXA_ARG_C_ZERO |
642 R200_TXA_OP_MADD);
643 R200_ALPHA_ARG( 0, A );
644 R200_ALPHA_ARG( 1, B );
645 break;
646 case GL_ADD:
647 alpha_combine = (R200_TXA_ARG_B_ZERO |
648 R200_TXA_COMP_ARG_B |
649 R200_TXA_OP_MADD);
650 R200_ALPHA_ARG( 0, A );
651 R200_ALPHA_ARG( 1, C );
652 break;
653 case GL_ADD_SIGNED:
654 alpha_combine = (R200_TXA_ARG_B_ZERO |
655 R200_TXA_COMP_ARG_B |
656 R200_TXA_BIAS_ARG_C | /* new */
657 R200_TXA_OP_MADD); /* was ADDSIGNED */
658 R200_ALPHA_ARG( 0, A );
659 R200_ALPHA_ARG( 1, C );
660 break;
661 case GL_SUBTRACT:
662 alpha_combine = (R200_TXA_ARG_B_ZERO |
663 R200_TXA_COMP_ARG_B |
664 R200_TXA_NEG_ARG_C |
665 R200_TXA_OP_MADD);
666 R200_ALPHA_ARG( 0, A );
667 R200_ALPHA_ARG( 1, C );
668 break;
669 case GL_INTERPOLATE:
670 alpha_combine = (R200_TXA_OP_LERP);
671 R200_ALPHA_ARG( 0, B );
672 R200_ALPHA_ARG( 1, A );
673 R200_ALPHA_ARG( 2, C );
674 break;
675
676 case GL_MODULATE_ADD_ATI:
677 alpha_combine = (R200_TXA_OP_MADD);
678 R200_ALPHA_ARG( 0, A );
679 R200_ALPHA_ARG( 1, C );
680 R200_ALPHA_ARG( 2, B );
681 break;
682 case GL_MODULATE_SIGNED_ADD_ATI:
683 alpha_combine = (R200_TXA_BIAS_ARG_C | /* new */
684 R200_TXA_OP_MADD); /* was ADDSIGNED */
685 R200_ALPHA_ARG( 0, A );
686 R200_ALPHA_ARG( 1, C );
687 R200_ALPHA_ARG( 2, B );
688 break;
689 case GL_MODULATE_SUBTRACT_ATI:
690 alpha_combine = (R200_TXA_NEG_ARG_C |
691 R200_TXA_OP_MADD);
692 R200_ALPHA_ARG( 0, A );
693 R200_ALPHA_ARG( 1, C );
694 R200_ALPHA_ARG( 2, B );
695 break;
696 default:
697 return GL_FALSE;
698 }
699
700 if ( (texUnit->_CurrentCombine->ModeRGB == GL_DOT3_RGBA_EXT)
701 || (texUnit->_CurrentCombine->ModeRGB == GL_DOT3_RGBA) ) {
702 alpha_scale |= R200_TXA_DOT_ALPHA;
703 Ashift = RGBshift;
704 }
705
706 /* Step 3:
707 * Apply the scale factor.
708 */
709 color_scale |= (RGBshift << R200_TXC_SCALE_SHIFT);
710 alpha_scale |= (Ashift << R200_TXA_SCALE_SHIFT);
711
712 /* All done!
713 */
714 }
715
716 if ( rmesa->hw.pix[slot].cmd[PIX_PP_TXCBLEND] != color_combine ||
717 rmesa->hw.pix[slot].cmd[PIX_PP_TXABLEND] != alpha_combine ||
718 rmesa->hw.pix[slot].cmd[PIX_PP_TXCBLEND2] != color_scale ||
719 rmesa->hw.pix[slot].cmd[PIX_PP_TXABLEND2] != alpha_scale) {
720 R200_STATECHANGE( rmesa, pix[slot] );
721 rmesa->hw.pix[slot].cmd[PIX_PP_TXCBLEND] = color_combine;
722 rmesa->hw.pix[slot].cmd[PIX_PP_TXABLEND] = alpha_combine;
723 rmesa->hw.pix[slot].cmd[PIX_PP_TXCBLEND2] = color_scale;
724 rmesa->hw.pix[slot].cmd[PIX_PP_TXABLEND2] = alpha_scale;
725 }
726
727 return GL_TRUE;
728 }
729
730 void r200SetTexOffset(__DRIcontext * pDRICtx, GLint texname,
731 unsigned long long offset, GLint depth, GLuint pitch)
732 {
733 r200ContextPtr rmesa = pDRICtx->driverPrivate;
734 struct gl_texture_object *tObj =
735 _mesa_lookup_texture(rmesa->radeon.glCtx, texname);
736 radeonTexObjPtr t;
737
738 if (!tObj)
739 return;
740
741 t = (radeonTexObjPtr) tObj->DriverData;
742
743 t->image_override = GL_TRUE;
744
745 if (!offset)
746 return;
747
748 t->pp_txoffset = offset;
749 t->pp_txpitch = pitch - 32;
750
751 switch (depth) {
752 case 32:
753 t->pp_txformat = tx_table_le[MESA_FORMAT_ARGB8888].format;
754 t->pp_txfilter |= tx_table_le[MESA_FORMAT_ARGB8888].filter;
755 break;
756 case 24:
757 default:
758 t->pp_txformat = tx_table_le[MESA_FORMAT_RGB888].format;
759 t->pp_txfilter |= tx_table_le[MESA_FORMAT_RGB888].filter;
760 break;
761 case 16:
762 t->pp_txformat = tx_table_le[MESA_FORMAT_RGB565].format;
763 t->pp_txfilter |= tx_table_le[MESA_FORMAT_RGB565].filter;
764 break;
765 }
766 }
767
768 #define REF_COLOR 1
769 #define REF_ALPHA 2
770
771 static GLboolean r200UpdateAllTexEnv( GLcontext *ctx )
772 {
773 r200ContextPtr rmesa = R200_CONTEXT(ctx);
774 GLint i, j, currslot;
775 GLint maxunitused = -1;
776 GLboolean texregfree[6] = {GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE};
777 GLubyte stageref[7] = {0, 0, 0, 0, 0, 0, 0};
778 GLint nextunit[R200_MAX_TEXTURE_UNITS] = {0, 0, 0, 0, 0, 0};
779 GLint currentnext = -1;
780 GLboolean ok;
781
782 /* find highest used unit */
783 for ( j = 0; j < R200_MAX_TEXTURE_UNITS; j++) {
784 if (ctx->Texture.Unit[j]._ReallyEnabled) {
785 maxunitused = j;
786 }
787 }
788 stageref[maxunitused + 1] = REF_COLOR | REF_ALPHA;
789
790 for ( j = maxunitused; j >= 0; j-- ) {
791 const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[j];
792
793 rmesa->state.texture.unit[j].outputreg = -1;
794
795 if (stageref[j + 1]) {
796
797 /* use the lowest available reg. That gets us automatically reg0 for the last stage.
798 need this even for disabled units, as it may get referenced due to the replace
799 optimization */
800 for ( i = 0 ; i < R200_MAX_TEXTURE_UNITS; i++ ) {
801 if (texregfree[i]) {
802 rmesa->state.texture.unit[j].outputreg = i;
803 break;
804 }
805 }
806 if (rmesa->state.texture.unit[j].outputreg == -1) {
807 /* no more free regs we can use. Need a fallback :-( */
808 return GL_FALSE;
809 }
810
811 nextunit[j] = currentnext;
812
813 if (!texUnit->_ReallyEnabled) {
814 /* the not enabled stages are referenced "indirectly",
815 must not cut off the lower stages */
816 stageref[j] = REF_COLOR | REF_ALPHA;
817 continue;
818 }
819 currentnext = j;
820
821 const GLuint numColorArgs = texUnit->_CurrentCombine->_NumArgsRGB;
822 const GLuint numAlphaArgs = texUnit->_CurrentCombine->_NumArgsA;
823 const GLboolean isdot3rgba = (texUnit->_CurrentCombine->ModeRGB == GL_DOT3_RGBA) ||
824 (texUnit->_CurrentCombine->ModeRGB == GL_DOT3_RGBA_EXT);
825
826
827 /* check if we need the color part, special case for dot3_rgba
828 as if only the alpha part is referenced later on it still is using the color part */
829 if ((stageref[j + 1] & REF_COLOR) || isdot3rgba) {
830 for ( i = 0 ; i < numColorArgs ; i++ ) {
831 const GLuint srcRGBi = texUnit->_CurrentCombine->SourceRGB[i];
832 const GLuint op = texUnit->_CurrentCombine->OperandRGB[i];
833 switch ( srcRGBi ) {
834 case GL_PREVIOUS:
835 /* op 0/1 are referencing color, op 2/3 alpha */
836 stageref[j] |= (op >> 1) + 1;
837 break;
838 case GL_TEXTURE:
839 texregfree[j] = GL_FALSE;
840 break;
841 case GL_TEXTURE0:
842 case GL_TEXTURE1:
843 case GL_TEXTURE2:
844 case GL_TEXTURE3:
845 case GL_TEXTURE4:
846 case GL_TEXTURE5:
847 texregfree[srcRGBi - GL_TEXTURE0] = GL_FALSE;
848 break;
849 default: /* don't care about other sources here */
850 break;
851 }
852 }
853 }
854
855 /* alpha args are ignored for dot3_rgba */
856 if ((stageref[j + 1] & REF_ALPHA) && !isdot3rgba) {
857
858 for ( i = 0 ; i < numAlphaArgs ; i++ ) {
859 const GLuint srcAi = texUnit->_CurrentCombine->SourceA[i];
860 switch ( srcAi ) {
861 case GL_PREVIOUS:
862 stageref[j] |= REF_ALPHA;
863 break;
864 case GL_TEXTURE:
865 texregfree[j] = GL_FALSE;
866 break;
867 case GL_TEXTURE0:
868 case GL_TEXTURE1:
869 case GL_TEXTURE2:
870 case GL_TEXTURE3:
871 case GL_TEXTURE4:
872 case GL_TEXTURE5:
873 texregfree[srcAi - GL_TEXTURE0] = GL_FALSE;
874 break;
875 default: /* don't care about other sources here */
876 break;
877 }
878 }
879 }
880 }
881 }
882
883 /* don't enable texture sampling for units if the result is not used */
884 for (i = 0; i < R200_MAX_TEXTURE_UNITS; i++) {
885 if (ctx->Texture.Unit[i]._ReallyEnabled && !texregfree[i])
886 rmesa->state.texture.unit[i].unitneeded = ctx->Texture.Unit[i]._ReallyEnabled;
887 else rmesa->state.texture.unit[i].unitneeded = 0;
888 }
889
890 ok = GL_TRUE;
891 currslot = 0;
892 rmesa->state.envneeded = 1;
893
894 i = 0;
895 while ((i <= maxunitused) && (i >= 0)) {
896 /* only output instruction if the results are referenced */
897 if (ctx->Texture.Unit[i]._ReallyEnabled && stageref[i+1]) {
898 GLuint replaceunit = i;
899 /* try to optimize GL_REPLACE away (only one level deep though) */
900 if ( (ctx->Texture.Unit[i]._CurrentCombine->ModeRGB == GL_REPLACE) &&
901 (ctx->Texture.Unit[i]._CurrentCombine->ModeA == GL_REPLACE) &&
902 (ctx->Texture.Unit[i]._CurrentCombine->ScaleShiftRGB == 0) &&
903 (ctx->Texture.Unit[i]._CurrentCombine->ScaleShiftA == 0) &&
904 (nextunit[i] > 0) ) {
905 /* yippie! can optimize it away! */
906 replaceunit = i;
907 i = nextunit[i];
908 }
909
910 /* need env instruction slot */
911 rmesa->state.envneeded |= 1 << currslot;
912 ok = r200UpdateTextureEnv( ctx, i, currslot, replaceunit );
913 if (!ok) return GL_FALSE;
914 currslot++;
915 }
916 i = i + 1;
917 }
918
919 if (currslot == 0) {
920 /* need one stage at least */
921 rmesa->state.texture.unit[0].outputreg = 0;
922 ok = r200UpdateTextureEnv( ctx, 0, 0, 0 );
923 }
924
925 R200_STATECHANGE( rmesa, ctx );
926 rmesa->hw.ctx.cmd[CTX_PP_CNTL] &= ~(R200_TEX_BLEND_ENABLE_MASK | R200_MULTI_PASS_ENABLE);
927 rmesa->hw.ctx.cmd[CTX_PP_CNTL] |= rmesa->state.envneeded << R200_TEX_BLEND_0_ENABLE_SHIFT;
928
929 return ok;
930 }
931
932 #undef REF_COLOR
933 #undef REF_ALPHA
934
935
936 #define TEXOBJ_TXFILTER_MASK (R200_MAX_MIP_LEVEL_MASK | \
937 R200_MIN_FILTER_MASK | \
938 R200_MAG_FILTER_MASK | \
939 R200_MAX_ANISO_MASK | \
940 R200_YUV_TO_RGB | \
941 R200_YUV_TEMPERATURE_MASK | \
942 R200_CLAMP_S_MASK | \
943 R200_CLAMP_T_MASK | \
944 R200_BORDER_MODE_D3D )
945
946 #define TEXOBJ_TXFORMAT_MASK (R200_TXFORMAT_WIDTH_MASK | \
947 R200_TXFORMAT_HEIGHT_MASK | \
948 R200_TXFORMAT_FORMAT_MASK | \
949 R200_TXFORMAT_F5_WIDTH_MASK | \
950 R200_TXFORMAT_F5_HEIGHT_MASK | \
951 R200_TXFORMAT_ALPHA_IN_MAP | \
952 R200_TXFORMAT_CUBIC_MAP_ENABLE | \
953 R200_TXFORMAT_NON_POWER2)
954
955 #define TEXOBJ_TXFORMAT_X_MASK (R200_DEPTH_LOG2_MASK | \
956 R200_TEXCOORD_MASK | \
957 R200_CLAMP_Q_MASK | \
958 R200_VOLUME_FILTER_MASK)
959
960
961 static void import_tex_obj_state( r200ContextPtr rmesa,
962 int unit,
963 radeonTexObjPtr texobj )
964 {
965 /* do not use RADEON_DB_STATE to avoid stale texture caches */
966 GLuint *cmd = &rmesa->hw.tex[unit].cmd[TEX_CMD_0];
967
968 R200_STATECHANGE( rmesa, tex[unit] );
969
970 cmd[TEX_PP_TXFILTER] &= ~TEXOBJ_TXFILTER_MASK;
971 cmd[TEX_PP_TXFILTER] |= texobj->pp_txfilter & TEXOBJ_TXFILTER_MASK;
972 cmd[TEX_PP_TXFORMAT] &= ~TEXOBJ_TXFORMAT_MASK;
973 cmd[TEX_PP_TXFORMAT] |= texobj->pp_txformat & TEXOBJ_TXFORMAT_MASK;
974 cmd[TEX_PP_TXFORMAT_X] &= ~TEXOBJ_TXFORMAT_X_MASK;
975 cmd[TEX_PP_TXFORMAT_X] |= texobj->pp_txformat_x & TEXOBJ_TXFORMAT_X_MASK;
976 cmd[TEX_PP_TXSIZE] = texobj->pp_txsize; /* NPOT only! */
977 cmd[TEX_PP_TXPITCH] = texobj->pp_txpitch; /* NPOT only! */
978 cmd[TEX_PP_BORDER_COLOR] = texobj->pp_border_color;
979 if (rmesa->radeon.radeonScreen->drmSupportsFragShader) {
980 cmd[TEX_PP_TXOFFSET_NEWDRM] = texobj->pp_txoffset;
981 }
982 else {
983 cmd[TEX_PP_TXOFFSET_OLDDRM] = texobj->pp_txoffset;
984 }
985
986 if (texobj->base.Target == GL_TEXTURE_CUBE_MAP) {
987 GLuint *cube_cmd = &rmesa->hw.cube[unit].cmd[CUBE_CMD_0];
988 // GLuint bytesPerFace = texobj->base.totalSize / 6;
989 // ASSERT(texobj->base.totalSize % 6 == 0);
990 GLuint bytesPerFace = 1; // TODO
991
992 R200_STATECHANGE( rmesa, cube[unit] );
993 cube_cmd[CUBE_PP_CUBIC_FACES] = texobj->pp_cubic_faces;
994 if (rmesa->radeon.radeonScreen->drmSupportsFragShader) {
995 /* that value is submitted twice. could change cube atom
996 to not include that command when new drm is used */
997 cmd[TEX_PP_CUBIC_FACES] = texobj->pp_cubic_faces;
998 }
999 cube_cmd[CUBE_PP_CUBIC_OFFSET_F1] = texobj->pp_txoffset + 1 * bytesPerFace;
1000 cube_cmd[CUBE_PP_CUBIC_OFFSET_F2] = texobj->pp_txoffset + 2 * bytesPerFace;
1001 cube_cmd[CUBE_PP_CUBIC_OFFSET_F3] = texobj->pp_txoffset + 3 * bytesPerFace;
1002 cube_cmd[CUBE_PP_CUBIC_OFFSET_F4] = texobj->pp_txoffset + 4 * bytesPerFace;
1003 cube_cmd[CUBE_PP_CUBIC_OFFSET_F5] = texobj->pp_txoffset + 5 * bytesPerFace;
1004 }
1005
1006 texobj->dirty_state &= ~(1<<unit);
1007 }
1008
1009 static void set_texgen_matrix( r200ContextPtr rmesa,
1010 GLuint unit,
1011 const GLfloat *s_plane,
1012 const GLfloat *t_plane,
1013 const GLfloat *r_plane,
1014 const GLfloat *q_plane )
1015 {
1016 GLfloat m[16];
1017
1018 m[0] = s_plane[0];
1019 m[4] = s_plane[1];
1020 m[8] = s_plane[2];
1021 m[12] = s_plane[3];
1022
1023 m[1] = t_plane[0];
1024 m[5] = t_plane[1];
1025 m[9] = t_plane[2];
1026 m[13] = t_plane[3];
1027
1028 m[2] = r_plane[0];
1029 m[6] = r_plane[1];
1030 m[10] = r_plane[2];
1031 m[14] = r_plane[3];
1032
1033 m[3] = q_plane[0];
1034 m[7] = q_plane[1];
1035 m[11] = q_plane[2];
1036 m[15] = q_plane[3];
1037
1038 _math_matrix_loadf( &(rmesa->TexGenMatrix[unit]), m);
1039 _math_matrix_analyse( &(rmesa->TexGenMatrix[unit]) );
1040 rmesa->TexGenEnabled |= R200_TEXMAT_0_ENABLE<<unit;
1041 }
1042
1043
1044 static GLuint r200_need_dis_texgen(const GLbitfield texGenEnabled,
1045 const GLfloat *planeS,
1046 const GLfloat *planeT,
1047 const GLfloat *planeR,
1048 const GLfloat *planeQ)
1049 {
1050 GLuint needtgenable = 0;
1051
1052 if (!(texGenEnabled & S_BIT)) {
1053 if (((texGenEnabled & T_BIT) && planeT[0] != 0.0) ||
1054 ((texGenEnabled & R_BIT) && planeR[0] != 0.0) ||
1055 ((texGenEnabled & Q_BIT) && planeQ[0] != 0.0)) {
1056 needtgenable |= S_BIT;
1057 }
1058 }
1059 if (!(texGenEnabled & T_BIT)) {
1060 if (((texGenEnabled & S_BIT) && planeS[1] != 0.0) ||
1061 ((texGenEnabled & R_BIT) && planeR[1] != 0.0) ||
1062 ((texGenEnabled & Q_BIT) && planeQ[1] != 0.0)) {
1063 needtgenable |= T_BIT;
1064 }
1065 }
1066 if (!(texGenEnabled & R_BIT)) {
1067 if (((texGenEnabled & S_BIT) && planeS[2] != 0.0) ||
1068 ((texGenEnabled & T_BIT) && planeT[2] != 0.0) ||
1069 ((texGenEnabled & Q_BIT) && planeQ[2] != 0.0)) {
1070 needtgenable |= R_BIT;
1071 }
1072 }
1073 if (!(texGenEnabled & Q_BIT)) {
1074 if (((texGenEnabled & S_BIT) && planeS[3] != 0.0) ||
1075 ((texGenEnabled & T_BIT) && planeT[3] != 0.0) ||
1076 ((texGenEnabled & R_BIT) && planeR[3] != 0.0)) {
1077 needtgenable |= Q_BIT;
1078 }
1079 }
1080
1081 return needtgenable;
1082 }
1083
1084
1085 /*
1086 * Returns GL_FALSE if fallback required.
1087 */
1088 static GLboolean r200_validate_texgen( GLcontext *ctx, GLuint unit )
1089 {
1090 r200ContextPtr rmesa = R200_CONTEXT(ctx);
1091 const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
1092 GLuint inputshift = R200_TEXGEN_0_INPUT_SHIFT + unit*4;
1093 GLuint tgi, tgcm;
1094 GLuint mode = 0;
1095 GLboolean mixed_fallback = GL_FALSE;
1096 static const GLfloat I[16] = {
1097 1, 0, 0, 0,
1098 0, 1, 0, 0,
1099 0, 0, 1, 0,
1100 0, 0, 0, 1 };
1101 static const GLfloat reflect[16] = {
1102 -1, 0, 0, 0,
1103 0, -1, 0, 0,
1104 0, 0, -1, 0,
1105 0, 0, 0, 1 };
1106
1107 rmesa->TexGenCompSel &= ~(R200_OUTPUT_TEX_0 << unit);
1108 rmesa->TexGenEnabled &= ~(R200_TEXGEN_TEXMAT_0_ENABLE<<unit);
1109 rmesa->TexGenEnabled &= ~(R200_TEXMAT_0_ENABLE<<unit);
1110 rmesa->TexGenNeedNormals[unit] = GL_FALSE;
1111 tgi = rmesa->hw.tcg.cmd[TCG_TEX_PROC_CTL_1] & ~(R200_TEXGEN_INPUT_MASK <<
1112 inputshift);
1113 tgcm = rmesa->hw.tcg.cmd[TCG_TEX_PROC_CTL_2] & ~(R200_TEXGEN_COMP_MASK <<
1114 (unit * 4));
1115
1116 if (0)
1117 fprintf(stderr, "%s unit %d\n", __FUNCTION__, unit);
1118
1119 if (texUnit->TexGenEnabled & S_BIT) {
1120 mode = texUnit->GenModeS;
1121 } else {
1122 tgcm |= R200_TEXGEN_COMP_S << (unit * 4);
1123 }
1124
1125 if (texUnit->TexGenEnabled & T_BIT) {
1126 if (texUnit->GenModeT != mode)
1127 mixed_fallback = GL_TRUE;
1128 } else {
1129 tgcm |= R200_TEXGEN_COMP_T << (unit * 4);
1130 }
1131 if (texUnit->TexGenEnabled & R_BIT) {
1132 if (texUnit->GenModeR != mode)
1133 mixed_fallback = GL_TRUE;
1134 } else {
1135 tgcm |= R200_TEXGEN_COMP_R << (unit * 4);
1136 }
1137
1138 if (texUnit->TexGenEnabled & Q_BIT) {
1139 if (texUnit->GenModeQ != mode)
1140 mixed_fallback = GL_TRUE;
1141 } else {
1142 tgcm |= R200_TEXGEN_COMP_Q << (unit * 4);
1143 }
1144
1145 if (mixed_fallback) {
1146 if (R200_DEBUG & DEBUG_FALLBACKS)
1147 fprintf(stderr, "fallback mixed texgen, 0x%x (0x%x 0x%x 0x%x 0x%x)\n",
1148 texUnit->TexGenEnabled, texUnit->GenModeS, texUnit->GenModeT,
1149 texUnit->GenModeR, texUnit->GenModeQ);
1150 return GL_FALSE;
1151 }
1152
1153 /* we CANNOT do mixed mode if the texgen mode requires a plane where the input
1154 is not enabled for texgen, since the planes are concatenated into texmat,
1155 and thus the input will come from texcoord rather than tex gen equation!
1156 Either fallback or just hope that those texcoords aren't really needed...
1157 Assuming the former will cause lots of unnecessary fallbacks, the latter will
1158 generate bogus results sometimes - it's pretty much impossible to really know
1159 when a fallback is needed, depends on texmat and what sort of texture is bound
1160 etc, - for now fallback if we're missing either S or T bits, there's a high
1161 probability we need the texcoords in that case.
1162 That's a lot of work for some obscure texgen mixed mode fixup - why oh why
1163 doesn't the chip just directly accept the plane parameters :-(. */
1164 switch (mode) {
1165 case GL_OBJECT_LINEAR: {
1166 GLuint needtgenable = r200_need_dis_texgen( texUnit->TexGenEnabled,
1167 texUnit->ObjectPlaneS, texUnit->ObjectPlaneT,
1168 texUnit->ObjectPlaneR, texUnit->ObjectPlaneQ );
1169 if (needtgenable & (S_BIT | T_BIT)) {
1170 if (R200_DEBUG & DEBUG_FALLBACKS)
1171 fprintf(stderr, "fallback mixed texgen / obj plane, 0x%x\n",
1172 texUnit->TexGenEnabled);
1173 return GL_FALSE;
1174 }
1175 if (needtgenable & (R_BIT)) {
1176 tgcm &= ~(R200_TEXGEN_COMP_R << (unit * 4));
1177 }
1178 if (needtgenable & (Q_BIT)) {
1179 tgcm &= ~(R200_TEXGEN_COMP_Q << (unit * 4));
1180 }
1181
1182 tgi |= R200_TEXGEN_INPUT_OBJ << inputshift;
1183 set_texgen_matrix( rmesa, unit,
1184 (texUnit->TexGenEnabled & S_BIT) ? texUnit->ObjectPlaneS : I,
1185 (texUnit->TexGenEnabled & T_BIT) ? texUnit->ObjectPlaneT : I + 4,
1186 (texUnit->TexGenEnabled & R_BIT) ? texUnit->ObjectPlaneR : I + 8,
1187 (texUnit->TexGenEnabled & Q_BIT) ? texUnit->ObjectPlaneQ : I + 12);
1188 }
1189 break;
1190
1191 case GL_EYE_LINEAR: {
1192 GLuint needtgenable = r200_need_dis_texgen( texUnit->TexGenEnabled,
1193 texUnit->EyePlaneS, texUnit->EyePlaneT,
1194 texUnit->EyePlaneR, texUnit->EyePlaneQ );
1195 if (needtgenable & (S_BIT | T_BIT)) {
1196 if (R200_DEBUG & DEBUG_FALLBACKS)
1197 fprintf(stderr, "fallback mixed texgen / eye plane, 0x%x\n",
1198 texUnit->TexGenEnabled);
1199 return GL_FALSE;
1200 }
1201 if (needtgenable & (R_BIT)) {
1202 tgcm &= ~(R200_TEXGEN_COMP_R << (unit * 4));
1203 }
1204 if (needtgenable & (Q_BIT)) {
1205 tgcm &= ~(R200_TEXGEN_COMP_Q << (unit * 4));
1206 }
1207 tgi |= R200_TEXGEN_INPUT_EYE << inputshift;
1208 set_texgen_matrix( rmesa, unit,
1209 (texUnit->TexGenEnabled & S_BIT) ? texUnit->EyePlaneS : I,
1210 (texUnit->TexGenEnabled & T_BIT) ? texUnit->EyePlaneT : I + 4,
1211 (texUnit->TexGenEnabled & R_BIT) ? texUnit->EyePlaneR : I + 8,
1212 (texUnit->TexGenEnabled & Q_BIT) ? texUnit->EyePlaneQ : I + 12);
1213 }
1214 break;
1215
1216 case GL_REFLECTION_MAP_NV:
1217 rmesa->TexGenNeedNormals[unit] = GL_TRUE;
1218 tgi |= R200_TEXGEN_INPUT_EYE_REFLECT << inputshift;
1219 /* pretty weird, must only negate when lighting is enabled? */
1220 if (ctx->Light.Enabled)
1221 set_texgen_matrix( rmesa, unit,
1222 (texUnit->TexGenEnabled & S_BIT) ? reflect : I,
1223 (texUnit->TexGenEnabled & T_BIT) ? reflect + 4 : I + 4,
1224 (texUnit->TexGenEnabled & R_BIT) ? reflect + 8 : I + 8,
1225 I + 12);
1226 break;
1227
1228 case GL_NORMAL_MAP_NV:
1229 rmesa->TexGenNeedNormals[unit] = GL_TRUE;
1230 tgi |= R200_TEXGEN_INPUT_EYE_NORMAL<<inputshift;
1231 break;
1232
1233 case GL_SPHERE_MAP:
1234 rmesa->TexGenNeedNormals[unit] = GL_TRUE;
1235 tgi |= R200_TEXGEN_INPUT_SPHERE<<inputshift;
1236 break;
1237
1238 case 0:
1239 /* All texgen units were disabled, so just pass coords through. */
1240 tgi |= unit << inputshift;
1241 break;
1242
1243 default:
1244 /* Unsupported mode, fallback:
1245 */
1246 if (R200_DEBUG & DEBUG_FALLBACKS)
1247 fprintf(stderr, "fallback unsupported texgen, %d\n",
1248 texUnit->GenModeS);
1249 return GL_FALSE;
1250 }
1251
1252 rmesa->TexGenEnabled |= R200_TEXGEN_TEXMAT_0_ENABLE << unit;
1253 rmesa->TexGenCompSel |= R200_OUTPUT_TEX_0 << unit;
1254
1255 if (tgi != rmesa->hw.tcg.cmd[TCG_TEX_PROC_CTL_1] ||
1256 tgcm != rmesa->hw.tcg.cmd[TCG_TEX_PROC_CTL_2])
1257 {
1258 R200_STATECHANGE(rmesa, tcg);
1259 rmesa->hw.tcg.cmd[TCG_TEX_PROC_CTL_1] = tgi;
1260 rmesa->hw.tcg.cmd[TCG_TEX_PROC_CTL_2] = tgcm;
1261 }
1262
1263 return GL_TRUE;
1264 }
1265
1266 void set_re_cntl_d3d( GLcontext *ctx, int unit, GLboolean use_d3d )
1267 {
1268 r200ContextPtr rmesa = R200_CONTEXT(ctx);
1269
1270 GLuint re_cntl;
1271
1272 re_cntl = rmesa->hw.set.cmd[SET_RE_CNTL] & ~(R200_VTX_STQ0_D3D << (2 * unit));
1273 if (use_d3d)
1274 re_cntl |= R200_VTX_STQ0_D3D << (2 * unit);
1275
1276 if ( re_cntl != rmesa->hw.set.cmd[SET_RE_CNTL] ) {
1277 R200_STATECHANGE( rmesa, set );
1278 rmesa->hw.set.cmd[SET_RE_CNTL] = re_cntl;
1279 }
1280 }
1281
1282 /**
1283 * Compute the cached hardware register values for the given texture object.
1284 *
1285 * \param rmesa Context pointer
1286 * \param t the r300 texture object
1287 */
1288 static void setup_hardware_state(r200ContextPtr rmesa, radeonTexObj *t)
1289 {
1290 const struct gl_texture_image *firstImage =
1291 t->base.Image[0][t->mt->firstLevel];
1292 GLint log2Width, log2Height, log2Depth, texelBytes;
1293
1294 log2Width = firstImage->WidthLog2;
1295 log2Height = firstImage->HeightLog2;
1296 log2Depth = firstImage->DepthLog2;
1297 texelBytes = firstImage->TexFormat->TexelBytes;
1298
1299
1300 if (!t->image_override) {
1301 if (VALID_FORMAT(firstImage->TexFormat->MesaFormat)) {
1302 const struct tx_table *table = _mesa_little_endian() ? tx_table_le :
1303 tx_table_be;
1304
1305 t->pp_txformat &= ~(R200_TXFORMAT_FORMAT_MASK |
1306 R200_TXFORMAT_ALPHA_IN_MAP);
1307 t->pp_txfilter &= ~R200_YUV_TO_RGB;
1308
1309 t->pp_txformat |= table[ firstImage->TexFormat->MesaFormat ].format;
1310 t->pp_txfilter |= table[ firstImage->TexFormat->MesaFormat ].filter;
1311 } else {
1312 _mesa_problem(NULL, "unexpected texture format in %s",
1313 __FUNCTION__);
1314 return;
1315 }
1316 }
1317
1318 t->pp_txfilter &= ~R200_MAX_MIP_LEVEL_MASK;
1319 t->pp_txfilter |= (t->mt->lastLevel - t->mt->firstLevel) << R200_MAX_MIP_LEVEL_SHIFT;
1320
1321 t->pp_txformat &= ~(R200_TXFORMAT_WIDTH_MASK |
1322 R200_TXFORMAT_HEIGHT_MASK |
1323 R200_TXFORMAT_CUBIC_MAP_ENABLE |
1324 R200_TXFORMAT_F5_WIDTH_MASK |
1325 R200_TXFORMAT_F5_HEIGHT_MASK);
1326 t->pp_txformat |= ((log2Width << R200_TXFORMAT_WIDTH_SHIFT) |
1327 (log2Height << R200_TXFORMAT_HEIGHT_SHIFT));
1328
1329 t->tile_bits = 0;
1330
1331 t->pp_txformat_x &= ~(R200_DEPTH_LOG2_MASK | R200_TEXCOORD_MASK);
1332 if (t->base.Target == GL_TEXTURE_3D) {
1333 t->pp_txformat_x |= (log2Depth << R200_DEPTH_LOG2_SHIFT);
1334 t->pp_txformat_x |= R200_TEXCOORD_VOLUME;
1335
1336 }
1337 else if (t->base.Target == GL_TEXTURE_CUBE_MAP) {
1338 ASSERT(log2Width == log2Height);
1339 t->pp_txformat |= ((log2Width << R200_TXFORMAT_F5_WIDTH_SHIFT) |
1340 (log2Height << R200_TXFORMAT_F5_HEIGHT_SHIFT) |
1341 /* don't think we need this bit, if it exists at all - fglrx does not set it */
1342 (R200_TXFORMAT_CUBIC_MAP_ENABLE));
1343 t->pp_txformat_x |= R200_TEXCOORD_CUBIC_ENV;
1344 t->pp_cubic_faces = ((log2Width << R200_FACE_WIDTH_1_SHIFT) |
1345 (log2Height << R200_FACE_HEIGHT_1_SHIFT) |
1346 (log2Width << R200_FACE_WIDTH_2_SHIFT) |
1347 (log2Height << R200_FACE_HEIGHT_2_SHIFT) |
1348 (log2Width << R200_FACE_WIDTH_3_SHIFT) |
1349 (log2Height << R200_FACE_HEIGHT_3_SHIFT) |
1350 (log2Width << R200_FACE_WIDTH_4_SHIFT) |
1351 (log2Height << R200_FACE_HEIGHT_4_SHIFT));
1352 }
1353 else {
1354 /* If we don't in fact send enough texture coordinates, q will be 1,
1355 * making TEXCOORD_PROJ act like TEXCOORD_NONPROJ (Right?)
1356 */
1357 t->pp_txformat_x |= R200_TEXCOORD_PROJ;
1358 }
1359
1360 t->pp_txsize = (((firstImage->Width - 1) << R200_PP_TX_WIDTHMASK_SHIFT)
1361 | ((firstImage->Height - 1) << R200_PP_TX_HEIGHTMASK_SHIFT));
1362
1363 if ( !t->image_override ) {
1364 if (firstImage->IsCompressed)
1365 t->pp_txpitch = (firstImage->Width + 63) & ~(63);
1366 else
1367 t->pp_txpitch = ((firstImage->Width * texelBytes) + 63) & ~(63);
1368 t->pp_txpitch -= 32;
1369 }
1370
1371 if (t->base.Target == GL_TEXTURE_RECTANGLE_NV) {
1372 t->pp_txformat |= R200_TXFORMAT_NON_POWER2;
1373 }
1374
1375 }
1376
1377 static GLboolean r200_validate_texture(GLcontext *ctx, struct gl_texture_object *texObj, int unit)
1378 {
1379 r200ContextPtr rmesa = R200_CONTEXT(ctx);
1380 radeonTexObj *t = radeon_tex_obj(texObj);
1381
1382 if (!radeon_validate_texture_miptree(ctx, texObj))
1383 return GL_FALSE;
1384
1385 r200_validate_texgen(ctx, unit);
1386 /* Configure the hardware registers (more precisely, the cached version
1387 * of the hardware registers). */
1388 setup_hardware_state(rmesa, t);
1389
1390 if (texObj->Target == GL_TEXTURE_RECTANGLE_NV ||
1391 texObj->Target == GL_TEXTURE_2D ||
1392 texObj->Target == GL_TEXTURE_1D)
1393 set_re_cntl_d3d( ctx, unit, GL_FALSE );
1394 else
1395 set_re_cntl_d3d( ctx, unit, GL_TRUE );
1396 R200_STATECHANGE( rmesa, ctx );
1397 rmesa->hw.ctx.cmd[CTX_PP_CNTL] |= R200_TEX_0_ENABLE << unit;
1398
1399 R200_STATECHANGE( rmesa, vtx );
1400 rmesa->hw.vtx.cmd[VTX_TCL_OUTPUT_VTXFMT_1] &= ~(7 << (unit * 3));
1401 rmesa->hw.vtx.cmd[VTX_TCL_OUTPUT_VTXFMT_1] |= 4 << (unit * 3);
1402
1403 rmesa->recheck_texgen[unit] = GL_TRUE;
1404 if (t->dirty_state & (1<<unit)) {
1405 import_tex_obj_state( rmesa, unit, t );
1406 }
1407
1408 t->dirty_state = R200_TEX_ALL;
1409
1410 t->validated = GL_TRUE;
1411 return GL_TRUE;
1412 }
1413
1414 static GLboolean r200UpdateTextureUnit(GLcontext *ctx, int unit)
1415 {
1416 r200ContextPtr rmesa = R200_CONTEXT(ctx);
1417 GLuint unitneeded = rmesa->state.texture.unit[unit].unitneeded;
1418
1419 if (!unitneeded)
1420 return GL_TRUE;
1421
1422 if (!r200_validate_texture(ctx, ctx->Texture.Unit[unit]._Current, unit)) {
1423 _mesa_warning(ctx,
1424 "failed to validate texture for unit %d.\n",
1425 unit);
1426 rmesa->state.texture.unit[unit].texobj = NULL;
1427 return GL_FALSE;
1428 }
1429
1430 rmesa->state.texture.unit[unit].texobj = radeon_tex_obj(ctx->Texture.Unit[unit]._Current);
1431 return GL_TRUE;
1432 }
1433
1434
1435 void r200UpdateTextureState( GLcontext *ctx )
1436 {
1437 r200ContextPtr rmesa = R200_CONTEXT(ctx);
1438 GLboolean ok;
1439 GLuint dbg;
1440
1441 /* NOTE: must not manipulate rmesa->state.texture.unit[].unitneeded or
1442 rmesa->state.envneeded before a R200_STATECHANGE (or R200_NEWPRIM) since
1443 we use these to determine if we want to emit the corresponding state
1444 atoms. */
1445 R200_NEWPRIM( rmesa );
1446
1447 if (ctx->ATIFragmentShader._Enabled) {
1448 GLuint i;
1449 for (i = 0; i < R200_MAX_TEXTURE_UNITS; i++) {
1450 rmesa->state.texture.unit[i].unitneeded = ctx->Texture.Unit[i]._ReallyEnabled;
1451 }
1452 ok = GL_TRUE;
1453 }
1454 else {
1455 ok = r200UpdateAllTexEnv( ctx );
1456 }
1457 if (ok) {
1458 ok = (r200UpdateTextureUnit( ctx, 0 ) &&
1459 r200UpdateTextureUnit( ctx, 1 ) &&
1460 r200UpdateTextureUnit( ctx, 2 ) &&
1461 r200UpdateTextureUnit( ctx, 3 ) &&
1462 r200UpdateTextureUnit( ctx, 4 ) &&
1463 r200UpdateTextureUnit( ctx, 5 ));
1464 }
1465
1466 if (ok && ctx->ATIFragmentShader._Enabled) {
1467 r200UpdateFragmentShader(ctx);
1468 }
1469
1470 FALLBACK( rmesa, R200_FALLBACK_TEXTURE, !ok );
1471
1472 if (rmesa->radeon.TclFallback)
1473 r200ChooseVertexState( ctx );
1474
1475
1476 if (rmesa->radeon.radeonScreen->chip_family == CHIP_FAMILY_R200) {
1477
1478 /*
1479 * T0 hang workaround -------------
1480 * not needed for r200 derivatives
1481 */
1482 if ((rmesa->hw.ctx.cmd[CTX_PP_CNTL] & R200_TEX_ENABLE_MASK) == R200_TEX_0_ENABLE &&
1483 (rmesa->hw.tex[0].cmd[TEX_PP_TXFILTER] & R200_MIN_FILTER_MASK) > R200_MIN_FILTER_LINEAR) {
1484
1485 R200_STATECHANGE(rmesa, ctx);
1486 R200_STATECHANGE(rmesa, tex[1]);
1487 rmesa->hw.ctx.cmd[CTX_PP_CNTL] |= R200_TEX_1_ENABLE;
1488 if (!(rmesa->hw.cst.cmd[CST_PP_CNTL_X] & R200_PPX_TEX_1_ENABLE))
1489 rmesa->hw.tex[1].cmd[TEX_PP_TXFORMAT] &= ~TEXOBJ_TXFORMAT_MASK;
1490 rmesa->hw.tex[1].cmd[TEX_PP_TXFORMAT] |= R200_TXFORMAT_LOOKUP_DISABLE;
1491 }
1492 else if (!ctx->ATIFragmentShader._Enabled) {
1493 if ((rmesa->hw.ctx.cmd[CTX_PP_CNTL] & R200_TEX_1_ENABLE) &&
1494 (rmesa->hw.tex[1].cmd[TEX_PP_TXFORMAT] & R200_TXFORMAT_LOOKUP_DISABLE)) {
1495 R200_STATECHANGE(rmesa, tex[1]);
1496 rmesa->hw.tex[1].cmd[TEX_PP_TXFORMAT] &= ~R200_TXFORMAT_LOOKUP_DISABLE;
1497 }
1498 }
1499 /* do the same workaround for the first pass of a fragment shader.
1500 * completely unknown if necessary / sufficient.
1501 */
1502 if ((rmesa->hw.cst.cmd[CST_PP_CNTL_X] & R200_PPX_TEX_ENABLE_MASK) == R200_PPX_TEX_0_ENABLE &&
1503 (rmesa->hw.tex[0].cmd[TEX_PP_TXFILTER] & R200_MIN_FILTER_MASK) > R200_MIN_FILTER_LINEAR) {
1504
1505 R200_STATECHANGE(rmesa, cst);
1506 R200_STATECHANGE(rmesa, tex[1]);
1507 rmesa->hw.cst.cmd[CST_PP_CNTL_X] |= R200_PPX_TEX_1_ENABLE;
1508 if (!(rmesa->hw.ctx.cmd[CTX_PP_CNTL] & R200_TEX_1_ENABLE))
1509 rmesa->hw.tex[1].cmd[TEX_PP_TXFORMAT] &= ~TEXOBJ_TXFORMAT_MASK;
1510 rmesa->hw.tex[1].cmd[TEX_PP_TXMULTI_CTL] |= R200_PASS1_TXFORMAT_LOOKUP_DISABLE;
1511 }
1512
1513 /* maybe needs to be done pairwise due to 2 parallel (physical) tex units ?
1514 looks like that's not the case, if 8500/9100 owners don't complain remove this...
1515 for ( i = 0; i < ctx->Const.MaxTextureUnits; i += 2) {
1516 if (((rmesa->hw.ctx.cmd[CTX_PP_CNTL] & ((R200_TEX_0_ENABLE |
1517 R200_TEX_1_ENABLE ) << i)) == (R200_TEX_0_ENABLE << i)) &&
1518 ((rmesa->hw.tex[i].cmd[TEX_PP_TXFILTER] & R200_MIN_FILTER_MASK) >
1519 R200_MIN_FILTER_LINEAR)) {
1520 R200_STATECHANGE(rmesa, ctx);
1521 R200_STATECHANGE(rmesa, tex[i+1]);
1522 rmesa->hw.ctx.cmd[CTX_PP_CNTL] |= (R200_TEX_1_ENABLE << i);
1523 rmesa->hw.tex[i+1].cmd[TEX_PP_TXFORMAT] &= ~TEXOBJ_TXFORMAT_MASK;
1524 rmesa->hw.tex[i+1].cmd[TEX_PP_TXFORMAT] |= 0x08000000;
1525 }
1526 else {
1527 if ((rmesa->hw.ctx.cmd[CTX_PP_CNTL] & (R200_TEX_1_ENABLE << i)) &&
1528 (rmesa->hw.tex[i+1].cmd[TEX_PP_TXFORMAT] & 0x08000000)) {
1529 R200_STATECHANGE(rmesa, tex[i+1]);
1530 rmesa->hw.tex[i+1].cmd[TEX_PP_TXFORMAT] &= ~0x08000000;
1531 }
1532 }
1533 } */
1534
1535 /*
1536 * Texture cache LRU hang workaround -------------
1537 * not needed for r200 derivatives
1538 * hopefully this covers first pass of a shader as well
1539 */
1540
1541 /* While the cases below attempt to only enable the workaround in the
1542 * specific cases necessary, they were insufficient. See bugzilla #1519,
1543 * #729, #814. Tests with quake3 showed no impact on performance.
1544 */
1545 dbg = 0x6;
1546
1547 /*
1548 if (((rmesa->hw.ctx.cmd[CTX_PP_CNTL] & (R200_TEX_0_ENABLE )) &&
1549 ((((rmesa->hw.tex[0].cmd[TEX_PP_TXFILTER] & R200_MIN_FILTER_MASK)) &
1550 0x04) == 0)) ||
1551 ((rmesa->hw.ctx.cmd[CTX_PP_CNTL] & R200_TEX_2_ENABLE) &&
1552 ((((rmesa->hw.tex[2].cmd[TEX_PP_TXFILTER] & R200_MIN_FILTER_MASK)) &
1553 0x04) == 0)) ||
1554 ((rmesa->hw.ctx.cmd[CTX_PP_CNTL] & R200_TEX_4_ENABLE) &&
1555 ((((rmesa->hw.tex[4].cmd[TEX_PP_TXFILTER] & R200_MIN_FILTER_MASK)) &
1556 0x04) == 0)))
1557 {
1558 dbg |= 0x02;
1559 }
1560
1561 if (((rmesa->hw.ctx.cmd[CTX_PP_CNTL] & (R200_TEX_1_ENABLE )) &&
1562 ((((rmesa->hw.tex[1].cmd[TEX_PP_TXFILTER] & R200_MIN_FILTER_MASK)) &
1563 0x04) == 0)) ||
1564 ((rmesa->hw.ctx.cmd[CTX_PP_CNTL] & R200_TEX_3_ENABLE) &&
1565 ((((rmesa->hw.tex[3].cmd[TEX_PP_TXFILTER] & R200_MIN_FILTER_MASK)) &
1566 0x04) == 0)) ||
1567 ((rmesa->hw.ctx.cmd[CTX_PP_CNTL] & R200_TEX_5_ENABLE) &&
1568 ((((rmesa->hw.tex[5].cmd[TEX_PP_TXFILTER] & R200_MIN_FILTER_MASK)) &
1569 0x04) == 0)))
1570 {
1571 dbg |= 0x04;
1572 }*/
1573
1574 if (dbg != rmesa->hw.tam.cmd[TAM_DEBUG3]) {
1575 R200_STATECHANGE( rmesa, tam );
1576 rmesa->hw.tam.cmd[TAM_DEBUG3] = dbg;
1577 if (0) printf("TEXCACHE LRU HANG WORKAROUND %x\n", dbg);
1578 }
1579 }
1580 }