radeon_texstate.c revision 6f6bd8aedcf2b2f0e1ca9a1fa7ded1cb1f5a88ed
1/**************************************************************************
2
3Copyright 2000, 2001 ATI Technologies Inc., Ontario, Canada, and
4                     VA Linux Systems Inc., Fremont, California.
5
6All Rights Reserved.
7
8Permission is hereby granted, free of charge, to any person obtaining
9a copy of this software and associated documentation files (the
10"Software"), to deal in the Software without restriction, including
11without limitation the rights to use, copy, modify, merge, publish,
12distribute, sublicense, and/or sell copies of the Software, and to
13permit persons to whom the Software is furnished to do so, subject to
14the following conditions:
15
16The above copyright notice and this permission notice (including the
17next paragraph) shall be included in all copies or substantial
18portions of the Software.
19
20THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
21EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
23IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
24LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
25OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
26WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27
28**************************************************************************/
29
30/*
31 * Authors:
32 *   Kevin E. Martin <martin@valinux.com>
33 *   Gareth Hughes <gareth@valinux.com>
34 */
35
36#include "main/glheader.h"
37#include "main/imports.h"
38#include "main/colormac.h"
39#include "main/context.h"
40#include "main/macros.h"
41#include "main/teximage.h"
42#include "main/texstate.h"
43#include "main/texobj.h"
44#include "main/enums.h"
45#include "main/samplerobj.h"
46
47#include "radeon_context.h"
48#include "radeon_mipmap_tree.h"
49#include "radeon_state.h"
50#include "radeon_ioctl.h"
51#include "radeon_swtcl.h"
52#include "radeon_tex.h"
53#include "radeon_tcl.h"
54
55
56#define RADEON_TXFORMAT_A8        RADEON_TXFORMAT_I8
57#define RADEON_TXFORMAT_L8        RADEON_TXFORMAT_I8
58#define RADEON_TXFORMAT_AL88      RADEON_TXFORMAT_AI88
59#define RADEON_TXFORMAT_YCBCR     RADEON_TXFORMAT_YVYU422
60#define RADEON_TXFORMAT_YCBCR_REV RADEON_TXFORMAT_VYUY422
61#define RADEON_TXFORMAT_RGB_DXT1  RADEON_TXFORMAT_DXT1
62#define RADEON_TXFORMAT_RGBA_DXT1 RADEON_TXFORMAT_DXT1
63#define RADEON_TXFORMAT_RGBA_DXT3 RADEON_TXFORMAT_DXT23
64#define RADEON_TXFORMAT_RGBA_DXT5 RADEON_TXFORMAT_DXT45
65
66#define _COLOR(f) \
67    [ MESA_FORMAT_ ## f ] = { RADEON_TXFORMAT_ ## f, 0 }
68#define _COLOR_REV(f) \
69    [ MESA_FORMAT_ ## f ## _REV ] = { RADEON_TXFORMAT_ ## f, 0 }
70#define _ALPHA(f) \
71    [ MESA_FORMAT_ ## f ] = { RADEON_TXFORMAT_ ## f | RADEON_TXFORMAT_ALPHA_IN_MAP, 0 }
72#define _ALPHA_REV(f) \
73    [ MESA_FORMAT_ ## f ## _REV ] = { RADEON_TXFORMAT_ ## f | RADEON_TXFORMAT_ALPHA_IN_MAP, 0 }
74#define _YUV(f) \
75   [ MESA_FORMAT_ ## f ] = { RADEON_TXFORMAT_ ## f, RADEON_YUV_TO_RGB }
76#define _INVALID(f) \
77    [ MESA_FORMAT_ ## f ] = { 0xffffffff, 0 }
78#define VALID_FORMAT(f) ( ((f) <= MESA_FORMAT_RGBA_DXT5) \
79			     && (tx_table[f].format != 0xffffffff) )
80
81struct tx_table {
82   GLuint format, filter;
83};
84
85/* XXX verify this table against MESA_FORMAT_x values */
86static const struct tx_table tx_table[] =
87{
88   _INVALID(NONE), /* MESA_FORMAT_NONE */
89   _ALPHA(RGBA8888),
90   _ALPHA_REV(RGBA8888),
91   _ALPHA(ARGB8888),
92   _ALPHA_REV(ARGB8888),
93   [ MESA_FORMAT_RGB888 ] = { RADEON_TXFORMAT_ARGB8888, 0 },
94   _COLOR(RGB565),
95   _COLOR_REV(RGB565),
96   _ALPHA(ARGB4444),
97   _ALPHA_REV(ARGB4444),
98   _ALPHA(ARGB1555),
99   _ALPHA_REV(ARGB1555),
100   _ALPHA(AL88),
101   _ALPHA_REV(AL88),
102   _ALPHA(A8),
103   _COLOR(L8),
104   _ALPHA(I8),
105   _YUV(YCBCR),
106   _YUV(YCBCR_REV),
107   _INVALID(RGB_FXT1),
108   _INVALID(RGBA_FXT1),
109   _COLOR(RGB_DXT1),
110   _ALPHA(RGBA_DXT1),
111   _ALPHA(RGBA_DXT3),
112   _ALPHA(RGBA_DXT5),
113};
114
115#undef _COLOR
116#undef _ALPHA
117#undef _INVALID
118
119/* ================================================================
120 * Texture combine functions
121 */
122
123/* GL_ARB_texture_env_combine support
124 */
125
126/* The color tables have combine functions for GL_SRC_COLOR,
127 * GL_ONE_MINUS_SRC_COLOR, GL_SRC_ALPHA and GL_ONE_MINUS_SRC_ALPHA.
128 */
129static GLuint radeon_texture_color[][RADEON_MAX_TEXTURE_UNITS] =
130{
131   {
132      RADEON_COLOR_ARG_A_T0_COLOR,
133      RADEON_COLOR_ARG_A_T1_COLOR,
134      RADEON_COLOR_ARG_A_T2_COLOR
135   },
136   {
137      RADEON_COLOR_ARG_A_T0_COLOR | RADEON_COMP_ARG_A,
138      RADEON_COLOR_ARG_A_T1_COLOR | RADEON_COMP_ARG_A,
139      RADEON_COLOR_ARG_A_T2_COLOR | RADEON_COMP_ARG_A
140   },
141   {
142      RADEON_COLOR_ARG_A_T0_ALPHA,
143      RADEON_COLOR_ARG_A_T1_ALPHA,
144      RADEON_COLOR_ARG_A_T2_ALPHA
145   },
146   {
147      RADEON_COLOR_ARG_A_T0_ALPHA | RADEON_COMP_ARG_A,
148      RADEON_COLOR_ARG_A_T1_ALPHA | RADEON_COMP_ARG_A,
149      RADEON_COLOR_ARG_A_T2_ALPHA | RADEON_COMP_ARG_A
150   },
151};
152
153static GLuint radeon_tfactor_color[] =
154{
155   RADEON_COLOR_ARG_A_TFACTOR_COLOR,
156   RADEON_COLOR_ARG_A_TFACTOR_COLOR | RADEON_COMP_ARG_A,
157   RADEON_COLOR_ARG_A_TFACTOR_ALPHA,
158   RADEON_COLOR_ARG_A_TFACTOR_ALPHA | RADEON_COMP_ARG_A
159};
160
161static GLuint radeon_primary_color[] =
162{
163   RADEON_COLOR_ARG_A_DIFFUSE_COLOR,
164   RADEON_COLOR_ARG_A_DIFFUSE_COLOR | RADEON_COMP_ARG_A,
165   RADEON_COLOR_ARG_A_DIFFUSE_ALPHA,
166   RADEON_COLOR_ARG_A_DIFFUSE_ALPHA | RADEON_COMP_ARG_A
167};
168
169static GLuint radeon_previous_color[] =
170{
171   RADEON_COLOR_ARG_A_CURRENT_COLOR,
172   RADEON_COLOR_ARG_A_CURRENT_COLOR | RADEON_COMP_ARG_A,
173   RADEON_COLOR_ARG_A_CURRENT_ALPHA,
174   RADEON_COLOR_ARG_A_CURRENT_ALPHA | RADEON_COMP_ARG_A
175};
176
177/* GL_ZERO table - indices 0-3
178 * GL_ONE  table - indices 1-4
179 */
180static GLuint radeon_zero_color[] =
181{
182   RADEON_COLOR_ARG_A_ZERO,
183   RADEON_COLOR_ARG_A_ZERO | RADEON_COMP_ARG_A,
184   RADEON_COLOR_ARG_A_ZERO,
185   RADEON_COLOR_ARG_A_ZERO | RADEON_COMP_ARG_A,
186   RADEON_COLOR_ARG_A_ZERO
187};
188
189
190/* The alpha tables only have GL_SRC_ALPHA and GL_ONE_MINUS_SRC_ALPHA.
191 */
192static GLuint radeon_texture_alpha[][RADEON_MAX_TEXTURE_UNITS] =
193{
194   {
195      RADEON_ALPHA_ARG_A_T0_ALPHA,
196      RADEON_ALPHA_ARG_A_T1_ALPHA,
197      RADEON_ALPHA_ARG_A_T2_ALPHA
198   },
199   {
200      RADEON_ALPHA_ARG_A_T0_ALPHA | RADEON_COMP_ARG_A,
201      RADEON_ALPHA_ARG_A_T1_ALPHA | RADEON_COMP_ARG_A,
202      RADEON_ALPHA_ARG_A_T2_ALPHA | RADEON_COMP_ARG_A
203   },
204};
205
206static GLuint radeon_tfactor_alpha[] =
207{
208   RADEON_ALPHA_ARG_A_TFACTOR_ALPHA,
209   RADEON_ALPHA_ARG_A_TFACTOR_ALPHA | RADEON_COMP_ARG_A
210};
211
212static GLuint radeon_primary_alpha[] =
213{
214   RADEON_ALPHA_ARG_A_DIFFUSE_ALPHA,
215   RADEON_ALPHA_ARG_A_DIFFUSE_ALPHA | RADEON_COMP_ARG_A
216};
217
218static GLuint radeon_previous_alpha[] =
219{
220   RADEON_ALPHA_ARG_A_CURRENT_ALPHA,
221   RADEON_ALPHA_ARG_A_CURRENT_ALPHA | RADEON_COMP_ARG_A
222};
223
224/* GL_ZERO table - indices 0-1
225 * GL_ONE  table - indices 1-2
226 */
227static GLuint radeon_zero_alpha[] =
228{
229   RADEON_ALPHA_ARG_A_ZERO,
230   RADEON_ALPHA_ARG_A_ZERO | RADEON_COMP_ARG_A,
231   RADEON_ALPHA_ARG_A_ZERO
232};
233
234
235/* Extract the arg from slot A, shift it into the correct argument slot
236 * and set the corresponding complement bit.
237 */
238#define RADEON_COLOR_ARG( n, arg )			\
239do {							\
240   color_combine |=					\
241      ((color_arg[n] & RADEON_COLOR_ARG_MASK)		\
242       << RADEON_COLOR_ARG_##arg##_SHIFT);		\
243   color_combine |=					\
244      ((color_arg[n] >> RADEON_COMP_ARG_SHIFT)		\
245       << RADEON_COMP_ARG_##arg##_SHIFT);		\
246} while (0)
247
248#define RADEON_ALPHA_ARG( n, arg )			\
249do {							\
250   alpha_combine |=					\
251      ((alpha_arg[n] & RADEON_ALPHA_ARG_MASK)		\
252       << RADEON_ALPHA_ARG_##arg##_SHIFT);		\
253   alpha_combine |=					\
254      ((alpha_arg[n] >> RADEON_COMP_ARG_SHIFT)		\
255       << RADEON_COMP_ARG_##arg##_SHIFT);		\
256} while (0)
257
258
259/* ================================================================
260 * Texture unit state management
261 */
262
263static GLboolean radeonUpdateTextureEnv( struct gl_context *ctx, int unit )
264{
265   r100ContextPtr rmesa = R100_CONTEXT(ctx);
266   const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
267   GLuint color_combine, alpha_combine;
268   const GLuint color_combine0 = RADEON_COLOR_ARG_A_ZERO | RADEON_COLOR_ARG_B_ZERO
269         | RADEON_COLOR_ARG_C_CURRENT_COLOR | RADEON_BLEND_CTL_ADD
270         | RADEON_SCALE_1X | RADEON_CLAMP_TX;
271   const GLuint alpha_combine0 = RADEON_ALPHA_ARG_A_ZERO | RADEON_ALPHA_ARG_B_ZERO
272         | RADEON_ALPHA_ARG_C_CURRENT_ALPHA | RADEON_BLEND_CTL_ADD
273         | RADEON_SCALE_1X | RADEON_CLAMP_TX;
274
275
276   /* texUnit->_Current can be NULL if and only if the texture unit is
277    * not actually enabled.
278    */
279   assert( (texUnit->_ReallyEnabled == 0)
280	   || (texUnit->_Current != NULL) );
281
282   if ( RADEON_DEBUG & RADEON_TEXTURE ) {
283      fprintf( stderr, "%s( %p, %d )\n", __FUNCTION__, (void *)ctx, unit );
284   }
285
286   /* Set the texture environment state.  Isn't this nice and clean?
287    * The chip will automagically set the texture alpha to 0xff when
288    * the texture format does not include an alpha component. This
289    * reduces the amount of special-casing we have to do, alpha-only
290    * textures being a notable exception. Doesn't work for luminance
291    * textures realized with I8 and ALPHA_IN_MAP not set neither (on r100).
292    */
293    /* Don't cache these results.
294    */
295   rmesa->state.texture.unit[unit].format = 0;
296   rmesa->state.texture.unit[unit].envMode = 0;
297
298   if ( !texUnit->_ReallyEnabled ) {
299      color_combine = color_combine0;
300      alpha_combine = alpha_combine0;
301   }
302   else {
303      GLuint color_arg[3], alpha_arg[3];
304      GLuint i;
305      const GLuint numColorArgs = texUnit->_CurrentCombine->_NumArgsRGB;
306      const GLuint numAlphaArgs = texUnit->_CurrentCombine->_NumArgsA;
307      GLuint RGBshift = texUnit->_CurrentCombine->ScaleShiftRGB;
308      GLuint Ashift = texUnit->_CurrentCombine->ScaleShiftA;
309
310
311      /* Step 1:
312       * Extract the color and alpha combine function arguments.
313       */
314      for ( i = 0 ; i < numColorArgs ; i++ ) {
315	 const GLint op = texUnit->_CurrentCombine->OperandRGB[i] - GL_SRC_COLOR;
316	 const GLuint srcRGBi = texUnit->_CurrentCombine->SourceRGB[i];
317	 assert(op >= 0);
318	 assert(op <= 3);
319	 switch ( srcRGBi ) {
320	 case GL_TEXTURE:
321	    if (texUnit->_Current->Image[0][0]->_BaseFormat == GL_ALPHA)
322	       color_arg[i] = radeon_zero_color[op];
323	    else
324	       color_arg[i] = radeon_texture_color[op][unit];
325	    break;
326	 case GL_CONSTANT:
327	    color_arg[i] = radeon_tfactor_color[op];
328	    break;
329	 case GL_PRIMARY_COLOR:
330	    color_arg[i] = radeon_primary_color[op];
331	    break;
332	 case GL_PREVIOUS:
333	    color_arg[i] = radeon_previous_color[op];
334	    break;
335	 case GL_ZERO:
336	    color_arg[i] = radeon_zero_color[op];
337	    break;
338	 case GL_ONE:
339	    color_arg[i] = radeon_zero_color[op+1];
340	    break;
341	 case GL_TEXTURE0:
342	 case GL_TEXTURE1:
343	 case GL_TEXTURE2: {
344	    GLuint txunit = srcRGBi - GL_TEXTURE0;
345	    if (ctx->Texture.Unit[txunit]._Current->Image[0][0]->_BaseFormat == GL_ALPHA)
346	       color_arg[i] = radeon_zero_color[op];
347	    else
348	 /* implement ogl 1.4/1.5 core spec here, not specification of
349	  * GL_ARB_texture_env_crossbar (which would require disabling blending
350	  * instead of undefined results when referencing not enabled texunit) */
351	      color_arg[i] = radeon_texture_color[op][txunit];
352	    }
353	    break;
354	 default:
355	    return GL_FALSE;
356	 }
357      }
358
359      for ( i = 0 ; i < numAlphaArgs ; i++ ) {
360	 const GLint op = texUnit->_CurrentCombine->OperandA[i] - GL_SRC_ALPHA;
361	 const GLuint srcAi = texUnit->_CurrentCombine->SourceA[i];
362	 assert(op >= 0);
363	 assert(op <= 1);
364	 switch ( srcAi ) {
365	 case GL_TEXTURE:
366	    if (texUnit->_Current->Image[0][0]->_BaseFormat == GL_LUMINANCE)
367	       alpha_arg[i] = radeon_zero_alpha[op+1];
368	    else
369	       alpha_arg[i] = radeon_texture_alpha[op][unit];
370	    break;
371	 case GL_CONSTANT:
372	    alpha_arg[i] = radeon_tfactor_alpha[op];
373	    break;
374	 case GL_PRIMARY_COLOR:
375	    alpha_arg[i] = radeon_primary_alpha[op];
376	    break;
377	 case GL_PREVIOUS:
378	    alpha_arg[i] = radeon_previous_alpha[op];
379	    break;
380	 case GL_ZERO:
381	    alpha_arg[i] = radeon_zero_alpha[op];
382	    break;
383	 case GL_ONE:
384	    alpha_arg[i] = radeon_zero_alpha[op+1];
385	    break;
386	 case GL_TEXTURE0:
387	 case GL_TEXTURE1:
388	 case GL_TEXTURE2: {
389	    GLuint txunit = srcAi - GL_TEXTURE0;
390	    if (ctx->Texture.Unit[txunit]._Current->Image[0][0]->_BaseFormat == GL_LUMINANCE)
391	       alpha_arg[i] = radeon_zero_alpha[op+1];
392	    else
393	       alpha_arg[i] = radeon_texture_alpha[op][txunit];
394	    }
395	    break;
396	 default:
397	    return GL_FALSE;
398	 }
399      }
400
401      /* Step 2:
402       * Build up the color and alpha combine functions.
403       */
404      switch ( texUnit->_CurrentCombine->ModeRGB ) {
405      case GL_REPLACE:
406	 color_combine = (RADEON_COLOR_ARG_A_ZERO |
407			  RADEON_COLOR_ARG_B_ZERO |
408			  RADEON_BLEND_CTL_ADD |
409			  RADEON_CLAMP_TX);
410	 RADEON_COLOR_ARG( 0, C );
411	 break;
412      case GL_MODULATE:
413	 color_combine = (RADEON_COLOR_ARG_C_ZERO |
414			  RADEON_BLEND_CTL_ADD |
415			  RADEON_CLAMP_TX);
416	 RADEON_COLOR_ARG( 0, A );
417	 RADEON_COLOR_ARG( 1, B );
418	 break;
419      case GL_ADD:
420	 color_combine = (RADEON_COLOR_ARG_B_ZERO |
421			  RADEON_COMP_ARG_B |
422			  RADEON_BLEND_CTL_ADD |
423			  RADEON_CLAMP_TX);
424	 RADEON_COLOR_ARG( 0, A );
425	 RADEON_COLOR_ARG( 1, C );
426	 break;
427      case GL_ADD_SIGNED:
428	 color_combine = (RADEON_COLOR_ARG_B_ZERO |
429			  RADEON_COMP_ARG_B |
430			  RADEON_BLEND_CTL_ADDSIGNED |
431			  RADEON_CLAMP_TX);
432	 RADEON_COLOR_ARG( 0, A );
433	 RADEON_COLOR_ARG( 1, C );
434	 break;
435      case GL_SUBTRACT:
436	 color_combine = (RADEON_COLOR_ARG_B_ZERO |
437			  RADEON_COMP_ARG_B |
438			  RADEON_BLEND_CTL_SUBTRACT |
439			  RADEON_CLAMP_TX);
440	 RADEON_COLOR_ARG( 0, A );
441	 RADEON_COLOR_ARG( 1, C );
442	 break;
443      case GL_INTERPOLATE:
444	 color_combine = (RADEON_BLEND_CTL_BLEND |
445			  RADEON_CLAMP_TX);
446	 RADEON_COLOR_ARG( 0, B );
447	 RADEON_COLOR_ARG( 1, A );
448	 RADEON_COLOR_ARG( 2, C );
449	 break;
450
451      case GL_DOT3_RGB_EXT:
452      case GL_DOT3_RGBA_EXT:
453	 /* The EXT version of the DOT3 extension does not support the
454	  * scale factor, but the ARB version (and the version in OpenGL
455	  * 1.3) does.
456	  */
457	 RGBshift = 0;
458	 /* FALLTHROUGH */
459
460      case GL_DOT3_RGB:
461      case GL_DOT3_RGBA:
462	 /* The R100 / RV200 only support a 1X multiplier in hardware
463	  * w/the ARB version.
464	  */
465	 if ( RGBshift != (RADEON_SCALE_1X >> RADEON_SCALE_SHIFT) ) {
466	    return GL_FALSE;
467	 }
468
469	 RGBshift += 2;
470	 if ( (texUnit->_CurrentCombine->ModeRGB == GL_DOT3_RGBA_EXT)
471	    || (texUnit->_CurrentCombine->ModeRGB == GL_DOT3_RGBA) ) {
472            /* is it necessary to set this or will it be ignored anyway? */
473	    Ashift = RGBshift;
474	 }
475
476	 color_combine = (RADEON_COLOR_ARG_C_ZERO |
477			  RADEON_BLEND_CTL_DOT3 |
478			  RADEON_CLAMP_TX);
479	 RADEON_COLOR_ARG( 0, A );
480	 RADEON_COLOR_ARG( 1, B );
481	 break;
482
483      case GL_MODULATE_ADD_ATI:
484	 color_combine = (RADEON_BLEND_CTL_ADD |
485			  RADEON_CLAMP_TX);
486	 RADEON_COLOR_ARG( 0, A );
487	 RADEON_COLOR_ARG( 1, C );
488	 RADEON_COLOR_ARG( 2, B );
489	 break;
490      case GL_MODULATE_SIGNED_ADD_ATI:
491	 color_combine = (RADEON_BLEND_CTL_ADDSIGNED |
492			  RADEON_CLAMP_TX);
493	 RADEON_COLOR_ARG( 0, A );
494	 RADEON_COLOR_ARG( 1, C );
495	 RADEON_COLOR_ARG( 2, B );
496	 break;
497      case GL_MODULATE_SUBTRACT_ATI:
498	 color_combine = (RADEON_BLEND_CTL_SUBTRACT |
499			  RADEON_CLAMP_TX);
500	 RADEON_COLOR_ARG( 0, A );
501	 RADEON_COLOR_ARG( 1, C );
502	 RADEON_COLOR_ARG( 2, B );
503	 break;
504      default:
505	 return GL_FALSE;
506      }
507
508      switch ( texUnit->_CurrentCombine->ModeA ) {
509      case GL_REPLACE:
510	 alpha_combine = (RADEON_ALPHA_ARG_A_ZERO |
511			  RADEON_ALPHA_ARG_B_ZERO |
512			  RADEON_BLEND_CTL_ADD |
513			  RADEON_CLAMP_TX);
514	 RADEON_ALPHA_ARG( 0, C );
515	 break;
516      case GL_MODULATE:
517	 alpha_combine = (RADEON_ALPHA_ARG_C_ZERO |
518			  RADEON_BLEND_CTL_ADD |
519			  RADEON_CLAMP_TX);
520	 RADEON_ALPHA_ARG( 0, A );
521	 RADEON_ALPHA_ARG( 1, B );
522	 break;
523      case GL_ADD:
524	 alpha_combine = (RADEON_ALPHA_ARG_B_ZERO |
525			  RADEON_COMP_ARG_B |
526			  RADEON_BLEND_CTL_ADD |
527			  RADEON_CLAMP_TX);
528	 RADEON_ALPHA_ARG( 0, A );
529	 RADEON_ALPHA_ARG( 1, C );
530	 break;
531      case GL_ADD_SIGNED:
532	 alpha_combine = (RADEON_ALPHA_ARG_B_ZERO |
533			  RADEON_COMP_ARG_B |
534			  RADEON_BLEND_CTL_ADDSIGNED |
535			  RADEON_CLAMP_TX);
536	 RADEON_ALPHA_ARG( 0, A );
537	 RADEON_ALPHA_ARG( 1, C );
538	 break;
539      case GL_SUBTRACT:
540	 alpha_combine = (RADEON_COLOR_ARG_B_ZERO |
541			  RADEON_COMP_ARG_B |
542			  RADEON_BLEND_CTL_SUBTRACT |
543			  RADEON_CLAMP_TX);
544	 RADEON_ALPHA_ARG( 0, A );
545	 RADEON_ALPHA_ARG( 1, C );
546	 break;
547      case GL_INTERPOLATE:
548	 alpha_combine = (RADEON_BLEND_CTL_BLEND |
549			  RADEON_CLAMP_TX);
550	 RADEON_ALPHA_ARG( 0, B );
551	 RADEON_ALPHA_ARG( 1, A );
552	 RADEON_ALPHA_ARG( 2, C );
553	 break;
554
555      case GL_MODULATE_ADD_ATI:
556	 alpha_combine = (RADEON_BLEND_CTL_ADD |
557			  RADEON_CLAMP_TX);
558	 RADEON_ALPHA_ARG( 0, A );
559	 RADEON_ALPHA_ARG( 1, C );
560	 RADEON_ALPHA_ARG( 2, B );
561	 break;
562      case GL_MODULATE_SIGNED_ADD_ATI:
563	 alpha_combine = (RADEON_BLEND_CTL_ADDSIGNED |
564			  RADEON_CLAMP_TX);
565	 RADEON_ALPHA_ARG( 0, A );
566	 RADEON_ALPHA_ARG( 1, C );
567	 RADEON_ALPHA_ARG( 2, B );
568	 break;
569      case GL_MODULATE_SUBTRACT_ATI:
570	 alpha_combine = (RADEON_BLEND_CTL_SUBTRACT |
571			  RADEON_CLAMP_TX);
572	 RADEON_ALPHA_ARG( 0, A );
573	 RADEON_ALPHA_ARG( 1, C );
574	 RADEON_ALPHA_ARG( 2, B );
575	 break;
576      default:
577	 return GL_FALSE;
578      }
579
580      if ( (texUnit->_CurrentCombine->ModeRGB == GL_DOT3_RGB_EXT)
581	   || (texUnit->_CurrentCombine->ModeRGB == GL_DOT3_RGB) ) {
582	 alpha_combine |= RADEON_DOT_ALPHA_DONT_REPLICATE;
583      }
584
585      /* Step 3:
586       * Apply the scale factor.
587       */
588      color_combine |= (RGBshift << RADEON_SCALE_SHIFT);
589      alpha_combine |= (Ashift   << RADEON_SCALE_SHIFT);
590
591      /* All done!
592       */
593   }
594
595   if ( rmesa->hw.tex[unit].cmd[TEX_PP_TXCBLEND] != color_combine ||
596	rmesa->hw.tex[unit].cmd[TEX_PP_TXABLEND] != alpha_combine ) {
597      RADEON_STATECHANGE( rmesa, tex[unit] );
598      rmesa->hw.tex[unit].cmd[TEX_PP_TXCBLEND] = color_combine;
599      rmesa->hw.tex[unit].cmd[TEX_PP_TXABLEND] = alpha_combine;
600   }
601
602   return GL_TRUE;
603}
604
605void radeonSetTexBuffer2(__DRIcontext *pDRICtx, GLint target, GLint texture_format,
606			 __DRIdrawable *dPriv)
607{
608	struct gl_texture_unit *texUnit;
609	struct gl_texture_object *texObj;
610	struct gl_texture_image *texImage;
611	struct radeon_renderbuffer *rb;
612	radeon_texture_image *rImage;
613	radeonContextPtr radeon;
614	struct radeon_framebuffer *rfb;
615	radeonTexObjPtr t;
616	uint32_t pitch_val;
617	gl_format texFormat;
618
619	radeon = pDRICtx->driverPrivate;
620
621	rfb = dPriv->driverPrivate;
622        texUnit = _mesa_get_current_tex_unit(radeon->glCtx);
623	texObj = _mesa_select_tex_object(radeon->glCtx, texUnit, target);
624        texImage = _mesa_get_tex_image(radeon->glCtx, texObj, target, 0);
625
626	rImage = get_radeon_texture_image(texImage);
627	t = radeon_tex_obj(texObj);
628        if (t == NULL) {
629    	    return;
630    	}
631
632	radeon_update_renderbuffers(pDRICtx, dPriv, GL_TRUE);
633	rb = rfb->color_rb[0];
634	if (rb->bo == NULL) {
635		/* Failed to BO for the buffer */
636		return;
637	}
638
639	_mesa_lock_texture(radeon->glCtx, texObj);
640	if (t->bo) {
641		radeon_bo_unref(t->bo);
642		t->bo = NULL;
643	}
644	if (rImage->bo) {
645		radeon_bo_unref(rImage->bo);
646		rImage->bo = NULL;
647	}
648
649	radeon_miptree_unreference(&t->mt);
650	radeon_miptree_unreference(&rImage->mt);
651
652	rImage->bo = rb->bo;
653	radeon_bo_ref(rImage->bo);
654	t->bo = rb->bo;
655	radeon_bo_ref(t->bo);
656	t->tile_bits = 0;
657	t->image_override = GL_TRUE;
658	t->override_offset = 0;
659	switch (rb->cpp) {
660	case 4:
661		if (texture_format == __DRI_TEXTURE_FORMAT_RGB) {
662			t->pp_txformat = tx_table[MESA_FORMAT_RGB888].format;
663			texFormat = MESA_FORMAT_RGB888;
664		}
665		else {
666			t->pp_txformat = tx_table[MESA_FORMAT_ARGB8888].format;
667			texFormat = MESA_FORMAT_ARGB8888;
668		}
669		t->pp_txfilter |= tx_table[MESA_FORMAT_ARGB8888].filter;
670		break;
671	case 3:
672	default:
673		texFormat = MESA_FORMAT_RGB888;
674		t->pp_txformat = tx_table[MESA_FORMAT_RGB888].format;
675		t->pp_txfilter |= tx_table[MESA_FORMAT_RGB888].filter;
676		break;
677	case 2:
678		texFormat = MESA_FORMAT_RGB565;
679		t->pp_txformat = tx_table[MESA_FORMAT_RGB565].format;
680		t->pp_txfilter |= tx_table[MESA_FORMAT_RGB565].filter;
681		break;
682	}
683
684	_mesa_init_teximage_fields(radeon->glCtx, texImage,
685				   rb->base.Base.Width, rb->base.Base.Height,
686				   1, 0,
687				   rb->cpp, texFormat);
688	rImage->base.RowStride = rb->pitch / rb->cpp;
689
690	t->pp_txpitch &= (1 << 13) -1;
691	pitch_val = rb->pitch;
692
693        t->pp_txsize = ((rb->base.Base.Width - 1) << RADEON_TEX_USIZE_SHIFT)
694		| ((rb->base.Base.Height - 1) << RADEON_TEX_VSIZE_SHIFT);
695	if (target == GL_TEXTURE_RECTANGLE_NV) {
696		t->pp_txformat |= RADEON_TXFORMAT_NON_POWER2;
697		t->pp_txpitch = pitch_val;
698		t->pp_txpitch -= 32;
699	} else {
700	  t->pp_txformat &= ~(RADEON_TXFORMAT_WIDTH_MASK |
701			      RADEON_TXFORMAT_HEIGHT_MASK |
702			      RADEON_TXFORMAT_CUBIC_MAP_ENABLE |
703			      RADEON_TXFORMAT_F5_WIDTH_MASK |
704			      RADEON_TXFORMAT_F5_HEIGHT_MASK);
705	  t->pp_txformat |= ((texImage->WidthLog2 << RADEON_TXFORMAT_WIDTH_SHIFT) |
706			     (texImage->HeightLog2 << RADEON_TXFORMAT_HEIGHT_SHIFT));
707	}
708	t->validated = GL_TRUE;
709	_mesa_unlock_texture(radeon->glCtx, texObj);
710	return;
711}
712
713
714void radeonSetTexBuffer(__DRIcontext *pDRICtx, GLint target, __DRIdrawable *dPriv)
715{
716        radeonSetTexBuffer2(pDRICtx, target, __DRI_TEXTURE_FORMAT_RGBA, dPriv);
717}
718
719
720#define TEXOBJ_TXFILTER_MASK (RADEON_MAX_MIP_LEVEL_MASK |	\
721			      RADEON_MIN_FILTER_MASK | 		\
722			      RADEON_MAG_FILTER_MASK |		\
723			      RADEON_MAX_ANISO_MASK |		\
724			      RADEON_YUV_TO_RGB |		\
725			      RADEON_YUV_TEMPERATURE_MASK |	\
726			      RADEON_CLAMP_S_MASK | 		\
727			      RADEON_CLAMP_T_MASK | 		\
728			      RADEON_BORDER_MODE_D3D )
729
730#define TEXOBJ_TXFORMAT_MASK (RADEON_TXFORMAT_WIDTH_MASK |	\
731			      RADEON_TXFORMAT_HEIGHT_MASK |	\
732			      RADEON_TXFORMAT_FORMAT_MASK |	\
733                              RADEON_TXFORMAT_F5_WIDTH_MASK |	\
734                              RADEON_TXFORMAT_F5_HEIGHT_MASK |	\
735			      RADEON_TXFORMAT_ALPHA_IN_MAP |	\
736			      RADEON_TXFORMAT_CUBIC_MAP_ENABLE |	\
737                              RADEON_TXFORMAT_NON_POWER2)
738
739
740static void disable_tex_obj_state( r100ContextPtr rmesa,
741				   int unit )
742{
743   RADEON_STATECHANGE( rmesa, tex[unit] );
744
745   RADEON_STATECHANGE( rmesa, tcl );
746   rmesa->hw.tcl.cmd[TCL_OUTPUT_VTXFMT] &= ~(RADEON_ST_BIT(unit) |
747					     RADEON_Q_BIT(unit));
748
749   if (rmesa->radeon.TclFallback & (RADEON_TCL_FALLBACK_TEXGEN_0<<unit)) {
750     TCL_FALLBACK( rmesa->radeon.glCtx, (RADEON_TCL_FALLBACK_TEXGEN_0<<unit), GL_FALSE);
751     rmesa->recheck_texgen[unit] = GL_TRUE;
752   }
753
754   if (rmesa->hw.tex[unit].cmd[TEX_PP_TXFORMAT] & RADEON_TXFORMAT_CUBIC_MAP_ENABLE) {
755     /* this seems to be a genuine (r100 only?) hw bug. Need to remove the
756	cubic_map bit on unit 2 when the unit is disabled, otherwise every
757	2nd (2d) mipmap on unit 0 will be broken (may not be needed for other
758	units, better be safe than sorry though).*/
759     RADEON_STATECHANGE( rmesa, tex[unit] );
760     rmesa->hw.tex[unit].cmd[TEX_PP_TXFORMAT] &= ~RADEON_TXFORMAT_CUBIC_MAP_ENABLE;
761   }
762
763   {
764      GLuint inputshift = RADEON_TEXGEN_0_INPUT_SHIFT + unit*4;
765      GLuint tmp = rmesa->TexGenEnabled;
766
767      rmesa->TexGenEnabled &= ~(RADEON_TEXGEN_TEXMAT_0_ENABLE<<unit);
768      rmesa->TexGenEnabled &= ~(RADEON_TEXMAT_0_ENABLE<<unit);
769      rmesa->TexGenEnabled &= ~(RADEON_TEXGEN_INPUT_MASK<<inputshift);
770      rmesa->TexGenNeedNormals[unit] = 0;
771      rmesa->TexGenEnabled |=
772	(RADEON_TEXGEN_INPUT_TEXCOORD_0+unit) << inputshift;
773
774      if (tmp != rmesa->TexGenEnabled) {
775	rmesa->recheck_texgen[unit] = GL_TRUE;
776	rmesa->radeon.NewGLState |= _NEW_TEXTURE_MATRIX;
777      }
778   }
779}
780
781static void import_tex_obj_state( r100ContextPtr rmesa,
782				  int unit,
783				  radeonTexObjPtr texobj )
784{
785/* do not use RADEON_DB_STATE to avoid stale texture caches */
786   uint32_t *cmd = &rmesa->hw.tex[unit].cmd[TEX_CMD_0];
787   GLuint se_coord_fmt = rmesa->hw.set.cmd[SET_SE_COORDFMT];
788
789   RADEON_STATECHANGE( rmesa, tex[unit] );
790
791   cmd[TEX_PP_TXFILTER] &= ~TEXOBJ_TXFILTER_MASK;
792   cmd[TEX_PP_TXFILTER] |= texobj->pp_txfilter & TEXOBJ_TXFILTER_MASK;
793   cmd[TEX_PP_TXFORMAT] &= ~TEXOBJ_TXFORMAT_MASK;
794   cmd[TEX_PP_TXFORMAT] |= texobj->pp_txformat & TEXOBJ_TXFORMAT_MASK;
795   cmd[TEX_PP_BORDER_COLOR] = texobj->pp_border_color;
796
797   if (texobj->pp_txformat & RADEON_TXFORMAT_NON_POWER2) {
798      uint32_t *txr_cmd = &rmesa->hw.txr[unit].cmd[TXR_CMD_0];
799      txr_cmd[TXR_PP_TEX_SIZE] = texobj->pp_txsize; /* NPOT only! */
800      txr_cmd[TXR_PP_TEX_PITCH] = texobj->pp_txpitch; /* NPOT only! */
801      RADEON_STATECHANGE( rmesa, txr[unit] );
802   }
803
804   if (texobj->base.Target == GL_TEXTURE_RECTANGLE_NV) {
805      se_coord_fmt |= RADEON_VTX_ST0_NONPARAMETRIC << unit;
806   }
807   else {
808      se_coord_fmt &= ~(RADEON_VTX_ST0_NONPARAMETRIC << unit);
809
810      if (texobj->base.Target == GL_TEXTURE_CUBE_MAP) {
811	 uint32_t *cube_cmd = &rmesa->hw.cube[unit].cmd[CUBE_CMD_0];
812
813	 RADEON_STATECHANGE( rmesa, cube[unit] );
814	 cube_cmd[CUBE_PP_CUBIC_FACES] = texobj->pp_cubic_faces;
815	 /* state filled out in the cube_emit */
816      }
817   }
818
819   if (se_coord_fmt != rmesa->hw.set.cmd[SET_SE_COORDFMT]) {
820      RADEON_STATECHANGE( rmesa, set );
821      rmesa->hw.set.cmd[SET_SE_COORDFMT] = se_coord_fmt;
822   }
823
824   rmesa->radeon.NewGLState |= _NEW_TEXTURE_MATRIX;
825}
826
827
828static void set_texgen_matrix( r100ContextPtr rmesa,
829			       GLuint unit,
830			       const GLfloat *s_plane,
831			       const GLfloat *t_plane,
832			       const GLfloat *r_plane,
833			       const GLfloat *q_plane )
834{
835   rmesa->TexGenMatrix[unit].m[0]  = s_plane[0];
836   rmesa->TexGenMatrix[unit].m[4]  = s_plane[1];
837   rmesa->TexGenMatrix[unit].m[8]  = s_plane[2];
838   rmesa->TexGenMatrix[unit].m[12] = s_plane[3];
839
840   rmesa->TexGenMatrix[unit].m[1]  = t_plane[0];
841   rmesa->TexGenMatrix[unit].m[5]  = t_plane[1];
842   rmesa->TexGenMatrix[unit].m[9]  = t_plane[2];
843   rmesa->TexGenMatrix[unit].m[13] = t_plane[3];
844
845   rmesa->TexGenMatrix[unit].m[2]  = r_plane[0];
846   rmesa->TexGenMatrix[unit].m[6]  = r_plane[1];
847   rmesa->TexGenMatrix[unit].m[10] = r_plane[2];
848   rmesa->TexGenMatrix[unit].m[14] = r_plane[3];
849
850   rmesa->TexGenMatrix[unit].m[3]  = q_plane[0];
851   rmesa->TexGenMatrix[unit].m[7]  = q_plane[1];
852   rmesa->TexGenMatrix[unit].m[11] = q_plane[2];
853   rmesa->TexGenMatrix[unit].m[15] = q_plane[3];
854
855   rmesa->TexGenEnabled |= RADEON_TEXMAT_0_ENABLE << unit;
856   rmesa->radeon.NewGLState |= _NEW_TEXTURE_MATRIX;
857}
858
859/* Returns GL_FALSE if fallback required.
860 */
861static GLboolean radeon_validate_texgen( struct gl_context *ctx, GLuint unit )
862{
863   r100ContextPtr rmesa = R100_CONTEXT(ctx);
864   struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
865   GLuint inputshift = RADEON_TEXGEN_0_INPUT_SHIFT + unit*4;
866   GLuint tmp = rmesa->TexGenEnabled;
867   static const GLfloat reflect[16] = {
868      -1,  0,  0,  0,
869       0, -1,  0,  0,
870       0,  0,  -1, 0,
871       0,  0,  0,  1 };
872
873   rmesa->TexGenEnabled &= ~(RADEON_TEXGEN_TEXMAT_0_ENABLE << unit);
874   rmesa->TexGenEnabled &= ~(RADEON_TEXMAT_0_ENABLE << unit);
875   rmesa->TexGenEnabled &= ~(RADEON_TEXGEN_INPUT_MASK << inputshift);
876   rmesa->TexGenNeedNormals[unit] = 0;
877
878   if ((texUnit->TexGenEnabled & (S_BIT|T_BIT|R_BIT|Q_BIT)) == 0) {
879      /* Disabled, no fallback:
880       */
881      rmesa->TexGenEnabled |=
882	 (RADEON_TEXGEN_INPUT_TEXCOORD_0 + unit) << inputshift;
883      return GL_TRUE;
884   }
885   /* the r100 cannot do texgen for some coords and not for others
886    * we do not detect such cases (certainly can't do it here) and just
887    * ASSUME that when S and T are texgen enabled we do not need other
888    * non-texgen enabled coords, no matter if the R and Q bits are texgen
889    * enabled. Still check for mixed mode texgen for all coords.
890    */
891   else if ( (texUnit->TexGenEnabled & S_BIT) &&
892	     (texUnit->TexGenEnabled & T_BIT) &&
893	     (texUnit->GenS.Mode == texUnit->GenT.Mode) ) {
894      if ( ((texUnit->TexGenEnabled & R_BIT) &&
895	    (texUnit->GenS.Mode != texUnit->GenR.Mode)) ||
896	   ((texUnit->TexGenEnabled & Q_BIT) &&
897	    (texUnit->GenS.Mode != texUnit->GenQ.Mode)) ) {
898	 /* Mixed modes, fallback:
899	  */
900	 if (RADEON_DEBUG & RADEON_FALLBACKS)
901	    fprintf(stderr, "fallback mixed texgen\n");
902	 return GL_FALSE;
903      }
904      rmesa->TexGenEnabled |= RADEON_TEXGEN_TEXMAT_0_ENABLE << unit;
905   }
906   else {
907   /* some texgen mode not including both S and T bits */
908      if (RADEON_DEBUG & RADEON_FALLBACKS)
909	 fprintf(stderr, "fallback mixed texgen/nontexgen\n");
910      return GL_FALSE;
911   }
912
913   if ((texUnit->TexGenEnabled & (R_BIT | Q_BIT)) != 0) {
914      /* need this here for vtxfmt presumably. Argh we need to set
915         this from way too many places, would be much easier if we could leave
916         tcl q coord always enabled as on r200) */
917      RADEON_STATECHANGE( rmesa, tcl );
918      rmesa->hw.tcl.cmd[TCL_OUTPUT_VTXFMT] |= RADEON_Q_BIT(unit);
919   }
920
921   switch (texUnit->GenS.Mode) {
922   case GL_OBJECT_LINEAR:
923      rmesa->TexGenEnabled |= RADEON_TEXGEN_INPUT_OBJ << inputshift;
924      set_texgen_matrix( rmesa, unit,
925			 texUnit->GenS.ObjectPlane,
926			 texUnit->GenT.ObjectPlane,
927			 texUnit->GenR.ObjectPlane,
928			 texUnit->GenQ.ObjectPlane);
929      break;
930
931   case GL_EYE_LINEAR:
932      rmesa->TexGenEnabled |= RADEON_TEXGEN_INPUT_EYE << inputshift;
933      set_texgen_matrix( rmesa, unit,
934			 texUnit->GenS.EyePlane,
935			 texUnit->GenT.EyePlane,
936			 texUnit->GenR.EyePlane,
937			 texUnit->GenQ.EyePlane);
938      break;
939
940   case GL_REFLECTION_MAP_NV:
941      rmesa->TexGenNeedNormals[unit] = GL_TRUE;
942      rmesa->TexGenEnabled |= RADEON_TEXGEN_INPUT_EYE_REFLECT << inputshift;
943      /* TODO: unknown if this is needed/correct */
944      set_texgen_matrix( rmesa, unit, reflect, reflect + 4,
945			reflect + 8, reflect + 12 );
946      break;
947
948   case GL_NORMAL_MAP_NV:
949      rmesa->TexGenNeedNormals[unit] = GL_TRUE;
950      rmesa->TexGenEnabled |= RADEON_TEXGEN_INPUT_EYE_NORMAL << inputshift;
951      break;
952
953   case GL_SPHERE_MAP:
954      /* the mode which everyone uses :-( */
955   default:
956      /* Unsupported mode, fallback:
957       */
958      if (RADEON_DEBUG & RADEON_FALLBACKS)
959	 fprintf(stderr, "fallback GL_SPHERE_MAP\n");
960      return GL_FALSE;
961   }
962
963   if (tmp != rmesa->TexGenEnabled) {
964      rmesa->radeon.NewGLState |= _NEW_TEXTURE_MATRIX;
965   }
966
967   return GL_TRUE;
968}
969
970/**
971 * Compute the cached hardware register values for the given texture object.
972 *
973 * \param rmesa Context pointer
974 * \param t the r300 texture object
975 */
976static GLboolean setup_hardware_state(r100ContextPtr rmesa, radeonTexObj *t, int unit)
977{
978   const struct gl_texture_image *firstImage;
979   GLint log2Width, log2Height, texelBytes;
980
981   if ( t->bo ) {
982	return GL_TRUE;
983   }
984
985   firstImage = t->base.Image[0][t->minLod];
986
987   log2Width  = firstImage->WidthLog2;
988   log2Height = firstImage->HeightLog2;
989   texelBytes = _mesa_get_format_bytes(firstImage->TexFormat);
990
991   if (!t->image_override) {
992      if (VALID_FORMAT(firstImage->TexFormat)) {
993	const struct tx_table *table = tx_table;
994
995	 t->pp_txformat &= ~(RADEON_TXFORMAT_FORMAT_MASK |
996			     RADEON_TXFORMAT_ALPHA_IN_MAP);
997	 t->pp_txfilter &= ~RADEON_YUV_TO_RGB;
998
999	 t->pp_txformat |= table[ firstImage->TexFormat ].format;
1000	 t->pp_txfilter |= table[ firstImage->TexFormat ].filter;
1001      } else {
1002	 _mesa_problem(NULL, "unexpected texture format in %s",
1003		       __FUNCTION__);
1004	 return GL_FALSE;
1005      }
1006   }
1007
1008   t->pp_txfilter &= ~RADEON_MAX_MIP_LEVEL_MASK;
1009   t->pp_txfilter |= (t->maxLod - t->minLod) << RADEON_MAX_MIP_LEVEL_SHIFT;
1010
1011   t->pp_txformat &= ~(RADEON_TXFORMAT_WIDTH_MASK |
1012		       RADEON_TXFORMAT_HEIGHT_MASK |
1013		       RADEON_TXFORMAT_CUBIC_MAP_ENABLE |
1014		       RADEON_TXFORMAT_F5_WIDTH_MASK |
1015		       RADEON_TXFORMAT_F5_HEIGHT_MASK);
1016   t->pp_txformat |= ((log2Width << RADEON_TXFORMAT_WIDTH_SHIFT) |
1017		      (log2Height << RADEON_TXFORMAT_HEIGHT_SHIFT));
1018
1019   t->tile_bits = 0;
1020
1021   if (t->base.Target == GL_TEXTURE_CUBE_MAP) {
1022      ASSERT(log2Width == log2Height);
1023      t->pp_txformat |= ((log2Width << RADEON_TXFORMAT_F5_WIDTH_SHIFT) |
1024			 (log2Height << RADEON_TXFORMAT_F5_HEIGHT_SHIFT) |
1025			 /* don't think we need this bit, if it exists at all - fglrx does not set it */
1026			 (RADEON_TXFORMAT_CUBIC_MAP_ENABLE));
1027      t->pp_cubic_faces = ((log2Width << RADEON_FACE_WIDTH_1_SHIFT) |
1028                           (log2Height << RADEON_FACE_HEIGHT_1_SHIFT) |
1029                           (log2Width << RADEON_FACE_WIDTH_2_SHIFT) |
1030                           (log2Height << RADEON_FACE_HEIGHT_2_SHIFT) |
1031                           (log2Width << RADEON_FACE_WIDTH_3_SHIFT) |
1032                           (log2Height << RADEON_FACE_HEIGHT_3_SHIFT) |
1033                           (log2Width << RADEON_FACE_WIDTH_4_SHIFT) |
1034                           (log2Height << RADEON_FACE_HEIGHT_4_SHIFT));
1035   }
1036
1037   t->pp_txsize = (((firstImage->Width - 1) << RADEON_TEX_USIZE_SHIFT)
1038		   | ((firstImage->Height - 1) << RADEON_TEX_VSIZE_SHIFT));
1039
1040   if ( !t->image_override ) {
1041      if (_mesa_is_format_compressed(firstImage->TexFormat))
1042         t->pp_txpitch = (firstImage->Width + 63) & ~(63);
1043      else
1044         t->pp_txpitch = ((firstImage->Width * texelBytes) + 63) & ~(63);
1045      t->pp_txpitch -= 32;
1046   }
1047
1048   if (t->base.Target == GL_TEXTURE_RECTANGLE_NV) {
1049      t->pp_txformat |= RADEON_TXFORMAT_NON_POWER2;
1050   }
1051
1052   return GL_TRUE;
1053}
1054
1055static GLboolean radeon_validate_texture(struct gl_context *ctx, struct gl_texture_object *texObj, int unit)
1056{
1057   r100ContextPtr rmesa = R100_CONTEXT(ctx);
1058   radeonTexObj *t = radeon_tex_obj(texObj);
1059   int ret;
1060
1061   if (!radeon_validate_texture_miptree(ctx, _mesa_get_samplerobj(ctx, unit), texObj))
1062      return GL_FALSE;
1063
1064   ret = setup_hardware_state(rmesa, t, unit);
1065   if (ret == GL_FALSE)
1066     return GL_FALSE;
1067
1068   /* yuv conversion only works in first unit */
1069   if (unit != 0 && (t->pp_txfilter & RADEON_YUV_TO_RGB))
1070      return GL_FALSE;
1071
1072   RADEON_STATECHANGE( rmesa, ctx );
1073   rmesa->hw.ctx.cmd[CTX_PP_CNTL] |=
1074     (RADEON_TEX_0_ENABLE | RADEON_TEX_BLEND_0_ENABLE) << unit;
1075   RADEON_STATECHANGE( rmesa, tcl );
1076   rmesa->hw.tcl.cmd[TCL_OUTPUT_VTXFMT] |= RADEON_ST_BIT(unit);
1077
1078   rmesa->recheck_texgen[unit] = GL_TRUE;
1079
1080   radeonTexUpdateParameters(ctx, unit);
1081   import_tex_obj_state( rmesa, unit, t );
1082
1083   if (rmesa->recheck_texgen[unit]) {
1084      GLboolean fallback = !radeon_validate_texgen( ctx, unit );
1085      TCL_FALLBACK( ctx, (RADEON_TCL_FALLBACK_TEXGEN_0<<unit), fallback);
1086      rmesa->recheck_texgen[unit] = 0;
1087      rmesa->radeon.NewGLState |= _NEW_TEXTURE_MATRIX;
1088   }
1089
1090   if ( ! radeonUpdateTextureEnv( ctx, unit ) ) {
1091     return GL_FALSE;
1092   }
1093   FALLBACK( rmesa, RADEON_FALLBACK_BORDER_MODE, t->border_fallback );
1094
1095   t->validated = GL_TRUE;
1096   return !t->border_fallback;
1097}
1098
1099static GLboolean radeonUpdateTextureUnit( struct gl_context *ctx, int unit )
1100{
1101   r100ContextPtr rmesa = R100_CONTEXT(ctx);
1102
1103   if (ctx->Texture.Unit[unit]._ReallyEnabled & TEXTURE_3D_BIT) {
1104     disable_tex_obj_state(rmesa, unit);
1105     rmesa->state.texture.unit[unit].texobj = NULL;
1106     return GL_FALSE;
1107   }
1108
1109   if (!ctx->Texture.Unit[unit]._ReallyEnabled) {
1110     /* disable the unit */
1111     disable_tex_obj_state(rmesa, unit);
1112     rmesa->state.texture.unit[unit].texobj = NULL;
1113     return GL_TRUE;
1114   }
1115
1116   if (!radeon_validate_texture(ctx, ctx->Texture.Unit[unit]._Current, unit)) {
1117    _mesa_warning(ctx,
1118		  "failed to validate texture for unit %d.\n",
1119		  unit);
1120     rmesa->state.texture.unit[unit].texobj = NULL;
1121     return GL_FALSE;
1122   }
1123   rmesa->state.texture.unit[unit].texobj = radeon_tex_obj(ctx->Texture.Unit[unit]._Current);
1124   return GL_TRUE;
1125}
1126
1127void radeonUpdateTextureState( struct gl_context *ctx )
1128{
1129   r100ContextPtr rmesa = R100_CONTEXT(ctx);
1130   GLboolean ok;
1131
1132   /* set the ctx all textures off */
1133   RADEON_STATECHANGE( rmesa, ctx );
1134   rmesa->hw.ctx.cmd[CTX_PP_CNTL] &= ~((RADEON_TEX_ENABLE_MASK) | (RADEON_TEX_BLEND_ENABLE_MASK));
1135
1136   ok = (radeonUpdateTextureUnit( ctx, 0 ) &&
1137	 radeonUpdateTextureUnit( ctx, 1 ) &&
1138	 radeonUpdateTextureUnit( ctx, 2 ));
1139
1140   FALLBACK( rmesa, RADEON_FALLBACK_TEXTURE, !ok );
1141
1142   if (rmesa->radeon.TclFallback)
1143      radeonChooseVertexState( ctx );
1144}
1145