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1 /*
2  * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
3  * Copyright 2010 Marek Olšák <maraeo@gmail.com>
4  *
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  * on the rights to use, copy, modify, merge, publish, distribute, sub
9  * license, and/or sell copies of the Software, and to permit persons to whom
10  * the Software is furnished to do so, subject to the following conditions:
11  *
12  * The above copyright notice and this permission notice (including the next
13  * paragraph) shall be included in all copies or substantial portions of the
14  * Software.
15  *
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  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
20  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
21  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
22  * USE OR OTHER DEALINGS IN THE SOFTWARE. */
23 
24 /* Always include headers in the reverse order!! ~ M. */
25 #include "r300_texture.h"
26 
27 #include "r300_context.h"
28 #include "r300_reg.h"
29 #include "r300_texture_desc.h"
30 #include "r300_transfer.h"
31 #include "r300_screen.h"
32 
33 #include "util/u_format.h"
34 #include "util/u_format_s3tc.h"
35 #include "util/u_math.h"
36 #include "util/u_memory.h"
37 #include "util/u_mm.h"
38 
39 #include "pipe/p_screen.h"
40 
r300_get_swizzle_combined(const unsigned char * swizzle_format,const unsigned char * swizzle_view,boolean dxtc_swizzle)41 unsigned r300_get_swizzle_combined(const unsigned char *swizzle_format,
42                                    const unsigned char *swizzle_view,
43                                    boolean dxtc_swizzle)
44 {
45     unsigned i;
46     unsigned char swizzle[4];
47     unsigned result = 0;
48     const uint32_t swizzle_shift[4] = {
49         R300_TX_FORMAT_R_SHIFT,
50         R300_TX_FORMAT_G_SHIFT,
51         R300_TX_FORMAT_B_SHIFT,
52         R300_TX_FORMAT_A_SHIFT
53     };
54     uint32_t swizzle_bit[4] = {
55         dxtc_swizzle ? R300_TX_FORMAT_Z : R300_TX_FORMAT_X,
56         R300_TX_FORMAT_Y,
57         dxtc_swizzle ? R300_TX_FORMAT_X : R300_TX_FORMAT_Z,
58         R300_TX_FORMAT_W
59     };
60 
61     if (swizzle_view) {
62         /* Combine two sets of swizzles. */
63         util_format_compose_swizzles(swizzle_format, swizzle_view, swizzle);
64     } else {
65         memcpy(swizzle, swizzle_format, 4);
66     }
67 
68     /* Get swizzle. */
69     for (i = 0; i < 4; i++) {
70         switch (swizzle[i]) {
71             case UTIL_FORMAT_SWIZZLE_Y:
72                 result |= swizzle_bit[1] << swizzle_shift[i];
73                 break;
74             case UTIL_FORMAT_SWIZZLE_Z:
75                 result |= swizzle_bit[2] << swizzle_shift[i];
76                 break;
77             case UTIL_FORMAT_SWIZZLE_W:
78                 result |= swizzle_bit[3] << swizzle_shift[i];
79                 break;
80             case UTIL_FORMAT_SWIZZLE_0:
81                 result |= R300_TX_FORMAT_ZERO << swizzle_shift[i];
82                 break;
83             case UTIL_FORMAT_SWIZZLE_1:
84                 result |= R300_TX_FORMAT_ONE << swizzle_shift[i];
85                 break;
86             default: /* UTIL_FORMAT_SWIZZLE_X */
87                 result |= swizzle_bit[0] << swizzle_shift[i];
88         }
89     }
90     return result;
91 }
92 
93 /* Translate a pipe_format into a useful texture format for sampling.
94  *
95  * Some special formats are translated directly using R300_EASY_TX_FORMAT,
96  * but the majority of them is translated in a generic way, automatically
97  * supporting all the formats hw can support.
98  *
99  * R300_EASY_TX_FORMAT swizzles the texture.
100  * Note the signature of R300_EASY_TX_FORMAT:
101  *   R300_EASY_TX_FORMAT(B, G, R, A, FORMAT);
102  *
103  * The FORMAT specifies how the texture sampler will treat the texture, and
104  * makes available X, Y, Z, W, ZERO, and ONE for swizzling. */
r300_translate_texformat(enum pipe_format format,const unsigned char * swizzle_view,boolean is_r500,boolean dxtc_swizzle)105 uint32_t r300_translate_texformat(enum pipe_format format,
106                                   const unsigned char *swizzle_view,
107                                   boolean is_r500,
108                                   boolean dxtc_swizzle)
109 {
110     uint32_t result = 0;
111     const struct util_format_description *desc;
112     unsigned i;
113     boolean uniform = TRUE;
114     const uint32_t sign_bit[4] = {
115         R300_TX_FORMAT_SIGNED_W,
116         R300_TX_FORMAT_SIGNED_Z,
117         R300_TX_FORMAT_SIGNED_Y,
118         R300_TX_FORMAT_SIGNED_X,
119     };
120 
121     desc = util_format_description(format);
122 
123     /* Colorspace (return non-RGB formats directly). */
124     switch (desc->colorspace) {
125         /* Depth stencil formats.
126          * Swizzles are added in r300_merge_textures_and_samplers. */
127         case UTIL_FORMAT_COLORSPACE_ZS:
128             switch (format) {
129                 case PIPE_FORMAT_Z16_UNORM:
130                     return R300_TX_FORMAT_X16;
131                 case PIPE_FORMAT_X8Z24_UNORM:
132                 case PIPE_FORMAT_S8_UINT_Z24_UNORM:
133                     if (is_r500)
134                         return R500_TX_FORMAT_Y8X24;
135                     else
136                         return R300_TX_FORMAT_Y16X16;
137                 default:
138                     return ~0; /* Unsupported. */
139             }
140 
141         /* YUV formats. */
142         case UTIL_FORMAT_COLORSPACE_YUV:
143             result |= R300_TX_FORMAT_YUV_TO_RGB;
144 
145             switch (format) {
146                 case PIPE_FORMAT_UYVY:
147                     return R300_EASY_TX_FORMAT(X, Y, Z, ONE, YVYU422) | result;
148                 case PIPE_FORMAT_YUYV:
149                     return R300_EASY_TX_FORMAT(X, Y, Z, ONE, VYUY422) | result;
150                 default:
151                     return ~0; /* Unsupported/unknown. */
152             }
153 
154         /* Add gamma correction. */
155         case UTIL_FORMAT_COLORSPACE_SRGB:
156             result |= R300_TX_FORMAT_GAMMA;
157             break;
158 
159         default:
160             switch (format) {
161                 /* Same as YUV but without the YUR->RGB conversion. */
162                 case PIPE_FORMAT_R8G8_B8G8_UNORM:
163                     return R300_EASY_TX_FORMAT(X, Y, Z, ONE, YVYU422) | result;
164                 case PIPE_FORMAT_G8R8_G8B8_UNORM:
165                     return R300_EASY_TX_FORMAT(X, Y, Z, ONE, VYUY422) | result;
166                 default:;
167             }
168     }
169 
170     /* Add swizzling. */
171     /* The RGTC1_SNORM and LATC1_SNORM swizzle is done in the shader. */
172     if (format != PIPE_FORMAT_RGTC1_SNORM &&
173         format != PIPE_FORMAT_LATC1_SNORM) {
174         if (util_format_is_compressed(format) &&
175             dxtc_swizzle &&
176             format != PIPE_FORMAT_RGTC2_UNORM &&
177             format != PIPE_FORMAT_RGTC2_SNORM &&
178             format != PIPE_FORMAT_LATC2_UNORM &&
179             format != PIPE_FORMAT_LATC2_SNORM) {
180             result |= r300_get_swizzle_combined(desc->swizzle, swizzle_view,
181                                                 TRUE);
182         } else {
183             result |= r300_get_swizzle_combined(desc->swizzle, swizzle_view,
184                                                 FALSE);
185         }
186     }
187 
188     /* S3TC formats. */
189     if (desc->layout == UTIL_FORMAT_LAYOUT_S3TC) {
190         if (!util_format_s3tc_enabled) {
191             return ~0; /* Unsupported. */
192         }
193 
194         switch (format) {
195             case PIPE_FORMAT_DXT1_RGB:
196             case PIPE_FORMAT_DXT1_RGBA:
197             case PIPE_FORMAT_DXT1_SRGB:
198             case PIPE_FORMAT_DXT1_SRGBA:
199                 return R300_TX_FORMAT_DXT1 | result;
200             case PIPE_FORMAT_DXT3_RGBA:
201             case PIPE_FORMAT_DXT3_SRGBA:
202                 return R300_TX_FORMAT_DXT3 | result;
203             case PIPE_FORMAT_DXT5_RGBA:
204             case PIPE_FORMAT_DXT5_SRGBA:
205                 return R300_TX_FORMAT_DXT5 | result;
206             default:
207                 return ~0; /* Unsupported/unknown. */
208         }
209     }
210 
211     /* RGTC formats. */
212     if (desc->layout == UTIL_FORMAT_LAYOUT_RGTC) {
213         switch (format) {
214             case PIPE_FORMAT_RGTC1_SNORM:
215             case PIPE_FORMAT_LATC1_SNORM:
216             case PIPE_FORMAT_LATC1_UNORM:
217             case PIPE_FORMAT_RGTC1_UNORM:
218                 return R500_TX_FORMAT_ATI1N | result;
219 
220             case PIPE_FORMAT_RGTC2_SNORM:
221             case PIPE_FORMAT_LATC2_SNORM:
222                 result |= sign_bit[1] | sign_bit[0];
223             case PIPE_FORMAT_RGTC2_UNORM:
224             case PIPE_FORMAT_LATC2_UNORM:
225                 return R400_TX_FORMAT_ATI2N | result;
226 
227             default:
228                 return ~0; /* Unsupported/unknown. */
229         }
230     }
231 
232     /* This is truly a special format.
233      * It stores R8G8 and B is computed using sqrt(1 - R^2 - G^2)
234      * in the sampler unit. Also known as D3DFMT_CxV8U8. */
235     if (format == PIPE_FORMAT_R8G8Bx_SNORM) {
236         return R300_TX_FORMAT_CxV8U8 | result;
237     }
238 
239     /* Integer and fixed-point 16.16 textures are not supported. */
240     for (i = 0; i < 4; i++) {
241         if (desc->channel[i].type == UTIL_FORMAT_TYPE_FIXED ||
242             ((desc->channel[i].type == UTIL_FORMAT_TYPE_SIGNED ||
243               desc->channel[i].type == UTIL_FORMAT_TYPE_UNSIGNED) &&
244              (!desc->channel[i].normalized ||
245               desc->channel[i].pure_integer))) {
246             return ~0; /* Unsupported/unknown. */
247         }
248     }
249 
250     /* Add sign. */
251     for (i = 0; i < desc->nr_channels; i++) {
252         if (desc->channel[i].type == UTIL_FORMAT_TYPE_SIGNED) {
253             result |= sign_bit[i];
254         }
255     }
256 
257     /* See whether the components are of the same size. */
258     for (i = 1; i < desc->nr_channels; i++) {
259         uniform = uniform && desc->channel[0].size == desc->channel[i].size;
260     }
261 
262     /* Non-uniform formats. */
263     if (!uniform) {
264         switch (desc->nr_channels) {
265             case 3:
266                 if (desc->channel[0].size == 5 &&
267                     desc->channel[1].size == 6 &&
268                     desc->channel[2].size == 5) {
269                     return R300_TX_FORMAT_Z5Y6X5 | result;
270                 }
271                 if (desc->channel[0].size == 5 &&
272                     desc->channel[1].size == 5 &&
273                     desc->channel[2].size == 6) {
274                     return R300_TX_FORMAT_Z6Y5X5 | result;
275                 }
276                 if (desc->channel[0].size == 2 &&
277                     desc->channel[1].size == 3 &&
278                     desc->channel[2].size == 3) {
279                     return R300_TX_FORMAT_Z3Y3X2 | result;
280                 }
281                 return ~0; /* Unsupported/unknown. */
282 
283             case 4:
284                 if (desc->channel[0].size == 5 &&
285                     desc->channel[1].size == 5 &&
286                     desc->channel[2].size == 5 &&
287                     desc->channel[3].size == 1) {
288                     return R300_TX_FORMAT_W1Z5Y5X5 | result;
289                 }
290                 if (desc->channel[0].size == 10 &&
291                     desc->channel[1].size == 10 &&
292                     desc->channel[2].size == 10 &&
293                     desc->channel[3].size == 2) {
294                     return R300_TX_FORMAT_W2Z10Y10X10 | result;
295                 }
296         }
297         return ~0; /* Unsupported/unknown. */
298     }
299 
300     /* Find the first non-VOID channel. */
301     for (i = 0; i < 4; i++) {
302         if (desc->channel[i].type != UTIL_FORMAT_TYPE_VOID) {
303             break;
304         }
305     }
306 
307     if (i == 4)
308         return ~0; /* Unsupported/unknown. */
309 
310     /* And finally, uniform formats. */
311     switch (desc->channel[i].type) {
312         case UTIL_FORMAT_TYPE_UNSIGNED:
313         case UTIL_FORMAT_TYPE_SIGNED:
314             if (!desc->channel[i].normalized &&
315                 desc->colorspace != UTIL_FORMAT_COLORSPACE_SRGB) {
316                 return ~0;
317             }
318 
319             switch (desc->channel[i].size) {
320                 case 4:
321                     switch (desc->nr_channels) {
322                         case 2:
323                             return R300_TX_FORMAT_Y4X4 | result;
324                         case 4:
325                             return R300_TX_FORMAT_W4Z4Y4X4 | result;
326                     }
327                     return ~0;
328 
329                 case 8:
330                     switch (desc->nr_channels) {
331                         case 1:
332                             return R300_TX_FORMAT_X8 | result;
333                         case 2:
334                             return R300_TX_FORMAT_Y8X8 | result;
335                         case 4:
336                             return R300_TX_FORMAT_W8Z8Y8X8 | result;
337                     }
338                     return ~0;
339 
340                 case 16:
341                     switch (desc->nr_channels) {
342                         case 1:
343                             return R300_TX_FORMAT_X16 | result;
344                         case 2:
345                             return R300_TX_FORMAT_Y16X16 | result;
346                         case 4:
347                             return R300_TX_FORMAT_W16Z16Y16X16 | result;
348                     }
349             }
350             return ~0;
351 
352         case UTIL_FORMAT_TYPE_FLOAT:
353             switch (desc->channel[i].size) {
354                 case 16:
355                     switch (desc->nr_channels) {
356                         case 1:
357                             return R300_TX_FORMAT_16F | result;
358                         case 2:
359                             return R300_TX_FORMAT_16F_16F | result;
360                         case 4:
361                             return R300_TX_FORMAT_16F_16F_16F_16F | result;
362                     }
363                     return ~0;
364 
365                 case 32:
366                     switch (desc->nr_channels) {
367                         case 1:
368                             return R300_TX_FORMAT_32F | result;
369                         case 2:
370                             return R300_TX_FORMAT_32F_32F | result;
371                         case 4:
372                             return R300_TX_FORMAT_32F_32F_32F_32F | result;
373                     }
374             }
375     }
376 
377     return ~0; /* Unsupported/unknown. */
378 }
379 
r500_tx_format_msb_bit(enum pipe_format format)380 uint32_t r500_tx_format_msb_bit(enum pipe_format format)
381 {
382     switch (format) {
383         case PIPE_FORMAT_RGTC1_UNORM:
384         case PIPE_FORMAT_RGTC1_SNORM:
385         case PIPE_FORMAT_LATC1_UNORM:
386         case PIPE_FORMAT_LATC1_SNORM:
387         case PIPE_FORMAT_X8Z24_UNORM:
388         case PIPE_FORMAT_S8_UINT_Z24_UNORM:
389             return R500_TXFORMAT_MSB;
390         default:
391             return 0;
392     }
393 }
394 
395 /* Buffer formats. */
396 
397 /* Colorbuffer formats. This is the unswizzled format of the RB3D block's
398  * output. For the swizzling of the targets, check the shader's format. */
r300_translate_colorformat(enum pipe_format format)399 static uint32_t r300_translate_colorformat(enum pipe_format format)
400 {
401     switch (format) {
402         /* 8-bit buffers. */
403         case PIPE_FORMAT_A8_UNORM:
404         case PIPE_FORMAT_A8_SNORM:
405         case PIPE_FORMAT_I8_UNORM:
406         case PIPE_FORMAT_I8_SNORM:
407         case PIPE_FORMAT_L8_UNORM:
408         case PIPE_FORMAT_L8_SNORM:
409         case PIPE_FORMAT_R8_UNORM:
410         case PIPE_FORMAT_R8_SNORM:
411             return R300_COLOR_FORMAT_I8;
412 
413         /* 16-bit buffers. */
414         case PIPE_FORMAT_L8A8_UNORM:
415         case PIPE_FORMAT_L8A8_SNORM:
416         case PIPE_FORMAT_R8G8_UNORM:
417         case PIPE_FORMAT_R8G8_SNORM:
418         /* These formats work fine with UV88 if US_OUT_FMT is set correctly. */
419         case PIPE_FORMAT_A16_UNORM:
420         case PIPE_FORMAT_A16_SNORM:
421         case PIPE_FORMAT_A16_FLOAT:
422         case PIPE_FORMAT_L16_UNORM:
423         case PIPE_FORMAT_L16_SNORM:
424         case PIPE_FORMAT_L16_FLOAT:
425         case PIPE_FORMAT_I16_UNORM:
426         case PIPE_FORMAT_I16_SNORM:
427         case PIPE_FORMAT_I16_FLOAT:
428         case PIPE_FORMAT_R16_UNORM:
429         case PIPE_FORMAT_R16_SNORM:
430         case PIPE_FORMAT_R16_FLOAT:
431             return R300_COLOR_FORMAT_UV88;
432 
433         case PIPE_FORMAT_B5G6R5_UNORM:
434             return R300_COLOR_FORMAT_RGB565;
435 
436         case PIPE_FORMAT_B5G5R5A1_UNORM:
437         case PIPE_FORMAT_B5G5R5X1_UNORM:
438             return R300_COLOR_FORMAT_ARGB1555;
439 
440         case PIPE_FORMAT_B4G4R4A4_UNORM:
441         case PIPE_FORMAT_B4G4R4X4_UNORM:
442             return R300_COLOR_FORMAT_ARGB4444;
443 
444         /* 32-bit buffers. */
445         case PIPE_FORMAT_B8G8R8A8_UNORM:
446         /*case PIPE_FORMAT_B8G8R8A8_SNORM:*/
447         case PIPE_FORMAT_B8G8R8X8_UNORM:
448         /*case PIPE_FORMAT_B8G8R8X8_SNORM:*/
449         case PIPE_FORMAT_R8G8B8A8_UNORM:
450         case PIPE_FORMAT_R8G8B8A8_SNORM:
451         case PIPE_FORMAT_R8G8B8X8_UNORM:
452         /*case PIPE_FORMAT_R8G8B8X8_SNORM:*/
453         /* These formats work fine with ARGB8888 if US_OUT_FMT is set
454          * correctly. */
455         case PIPE_FORMAT_R16G16_UNORM:
456         case PIPE_FORMAT_R16G16_SNORM:
457         case PIPE_FORMAT_R16G16_FLOAT:
458         case PIPE_FORMAT_L16A16_UNORM:
459         case PIPE_FORMAT_L16A16_SNORM:
460         case PIPE_FORMAT_L16A16_FLOAT:
461         case PIPE_FORMAT_A32_FLOAT:
462         case PIPE_FORMAT_L32_FLOAT:
463         case PIPE_FORMAT_I32_FLOAT:
464         case PIPE_FORMAT_R32_FLOAT:
465             return R300_COLOR_FORMAT_ARGB8888;
466 
467         case PIPE_FORMAT_R10G10B10A2_UNORM:
468         case PIPE_FORMAT_R10G10B10X2_SNORM:
469         case PIPE_FORMAT_B10G10R10A2_UNORM:
470             return R500_COLOR_FORMAT_ARGB2101010;  /* R5xx-only? */
471 
472         /* 64-bit buffers. */
473         case PIPE_FORMAT_R16G16B16A16_UNORM:
474         case PIPE_FORMAT_R16G16B16A16_SNORM:
475         case PIPE_FORMAT_R16G16B16A16_FLOAT:
476         /* These formats work fine with ARGB16161616 if US_OUT_FMT is set
477          * correctly. */
478         case PIPE_FORMAT_R32G32_FLOAT:
479         case PIPE_FORMAT_L32A32_FLOAT:
480             return R300_COLOR_FORMAT_ARGB16161616;
481 
482         /* 128-bit buffers. */
483         case PIPE_FORMAT_R32G32B32A32_FLOAT:
484             return R300_COLOR_FORMAT_ARGB32323232;
485 
486         /* YUV buffers. */
487         case PIPE_FORMAT_UYVY:
488             return R300_COLOR_FORMAT_YVYU;
489         case PIPE_FORMAT_YUYV:
490             return R300_COLOR_FORMAT_VYUY;
491         default:
492             return ~0; /* Unsupported. */
493     }
494 }
495 
496 /* Depthbuffer and stencilbuffer. Thankfully, we only support two flavors. */
r300_translate_zsformat(enum pipe_format format)497 static uint32_t r300_translate_zsformat(enum pipe_format format)
498 {
499     switch (format) {
500         /* 16-bit depth, no stencil */
501         case PIPE_FORMAT_Z16_UNORM:
502             return R300_DEPTHFORMAT_16BIT_INT_Z;
503         /* 24-bit depth, ignored stencil */
504         case PIPE_FORMAT_X8Z24_UNORM:
505         /* 24-bit depth, 8-bit stencil */
506         case PIPE_FORMAT_S8_UINT_Z24_UNORM:
507             return R300_DEPTHFORMAT_24BIT_INT_Z_8BIT_STENCIL;
508         default:
509             return ~0; /* Unsupported. */
510     }
511 }
512 
513 /* Shader output formats. This is essentially the swizzle from the shader
514  * to the RB3D block.
515  *
516  * Note that formats are stored from C3 to C0. */
r300_translate_out_fmt(enum pipe_format format)517 static uint32_t r300_translate_out_fmt(enum pipe_format format)
518 {
519     uint32_t modifier = 0;
520     unsigned i;
521     const struct util_format_description *desc;
522     boolean uniform_sign;
523 
524     desc = util_format_description(format);
525 
526     /* Find the first non-VOID channel. */
527     for (i = 0; i < 4; i++) {
528         if (desc->channel[i].type != UTIL_FORMAT_TYPE_VOID) {
529             break;
530         }
531     }
532 
533     if (i == 4)
534         return ~0; /* Unsupported/unknown. */
535 
536     /* Specifies how the shader output is written to the fog unit. */
537     switch (desc->channel[i].type) {
538     case UTIL_FORMAT_TYPE_FLOAT:
539         switch (desc->channel[i].size) {
540         case 32:
541             switch (desc->nr_channels) {
542             case 1:
543                 modifier |= R300_US_OUT_FMT_C_32_FP;
544                 break;
545             case 2:
546                 modifier |= R300_US_OUT_FMT_C2_32_FP;
547                 break;
548             case 4:
549                 modifier |= R300_US_OUT_FMT_C4_32_FP;
550                 break;
551             }
552             break;
553 
554         case 16:
555             switch (desc->nr_channels) {
556             case 1:
557                 modifier |= R300_US_OUT_FMT_C_16_FP;
558                 break;
559             case 2:
560                 modifier |= R300_US_OUT_FMT_C2_16_FP;
561                 break;
562             case 4:
563                 modifier |= R300_US_OUT_FMT_C4_16_FP;
564                 break;
565             }
566             break;
567         }
568         break;
569 
570     default:
571         switch (desc->channel[i].size) {
572         case 16:
573             switch (desc->nr_channels) {
574             case 1:
575                 modifier |= R300_US_OUT_FMT_C_16;
576                 break;
577             case 2:
578                 modifier |= R300_US_OUT_FMT_C2_16;
579                 break;
580             case 4:
581                 modifier |= R300_US_OUT_FMT_C4_16;
582                 break;
583             }
584             break;
585 
586         case 10:
587             modifier |= R300_US_OUT_FMT_C4_10;
588             break;
589 
590         default:
591             /* C4_8 seems to be used for the formats whose pixel size
592              * is <= 32 bits. */
593             modifier |= R300_US_OUT_FMT_C4_8;
594             break;
595         }
596     }
597 
598     /* Add sign. */
599     uniform_sign = TRUE;
600     for (i = 0; i < desc->nr_channels; i++)
601         if (desc->channel[i].type != UTIL_FORMAT_TYPE_SIGNED)
602             uniform_sign = FALSE;
603 
604     if (uniform_sign)
605         modifier |= R300_OUT_SIGN(0xf);
606 
607     /* Add swizzles and return. */
608     switch (format) {
609         /*** Special cases (non-standard channel mapping) ***/
610 
611         /* X8
612          * COLORFORMAT_I8 stores the Z component (C2). */
613         case PIPE_FORMAT_A8_UNORM:
614         case PIPE_FORMAT_A8_SNORM:
615             return modifier | R300_C2_SEL_A;
616         case PIPE_FORMAT_I8_UNORM:
617         case PIPE_FORMAT_I8_SNORM:
618         case PIPE_FORMAT_L8_UNORM:
619         case PIPE_FORMAT_L8_SNORM:
620         case PIPE_FORMAT_R8_UNORM:
621         case PIPE_FORMAT_R8_SNORM:
622             return modifier | R300_C2_SEL_R;
623 
624         /* X8Y8
625          * COLORFORMAT_UV88 stores ZX (C2 and C0). */
626         case PIPE_FORMAT_L8A8_SNORM:
627         case PIPE_FORMAT_L8A8_UNORM:
628             return modifier | R300_C0_SEL_A | R300_C2_SEL_R;
629         case PIPE_FORMAT_R8G8_SNORM:
630         case PIPE_FORMAT_R8G8_UNORM:
631             return modifier | R300_C0_SEL_G | R300_C2_SEL_R;
632 
633         /* X32Y32
634          * ARGB16161616 stores XZ for RG32F */
635         case PIPE_FORMAT_R32G32_FLOAT:
636             return modifier | R300_C0_SEL_R | R300_C2_SEL_G;
637 
638         /*** Generic cases (standard channel mapping) ***/
639 
640         /* BGRA outputs. */
641         case PIPE_FORMAT_B5G6R5_UNORM:
642         case PIPE_FORMAT_B5G5R5A1_UNORM:
643         case PIPE_FORMAT_B5G5R5X1_UNORM:
644         case PIPE_FORMAT_B4G4R4A4_UNORM:
645         case PIPE_FORMAT_B4G4R4X4_UNORM:
646         case PIPE_FORMAT_B8G8R8A8_UNORM:
647         /*case PIPE_FORMAT_B8G8R8A8_SNORM:*/
648         case PIPE_FORMAT_B8G8R8X8_UNORM:
649         /*case PIPE_FORMAT_B8G8R8X8_SNORM:*/
650         case PIPE_FORMAT_B10G10R10A2_UNORM:
651             return modifier |
652                 R300_C0_SEL_B | R300_C1_SEL_G |
653                 R300_C2_SEL_R | R300_C3_SEL_A;
654 
655         /* ARGB outputs. */
656         case PIPE_FORMAT_A16_UNORM:
657         case PIPE_FORMAT_A16_SNORM:
658         case PIPE_FORMAT_A16_FLOAT:
659         case PIPE_FORMAT_A32_FLOAT:
660             return modifier |
661                 R300_C0_SEL_A | R300_C1_SEL_R |
662                 R300_C2_SEL_G | R300_C3_SEL_B;
663 
664         /* RGBA outputs. */
665         case PIPE_FORMAT_R8G8B8X8_UNORM:
666         /*case PIPE_FORMAT_R8G8B8X8_SNORM:*/
667         case PIPE_FORMAT_R8G8B8A8_UNORM:
668         case PIPE_FORMAT_R8G8B8A8_SNORM:
669         case PIPE_FORMAT_R10G10B10A2_UNORM:
670         case PIPE_FORMAT_R10G10B10X2_SNORM:
671         case PIPE_FORMAT_R16_UNORM:
672         case PIPE_FORMAT_R16G16_UNORM:
673         case PIPE_FORMAT_R16G16B16A16_UNORM:
674         case PIPE_FORMAT_R16_SNORM:
675         case PIPE_FORMAT_R16G16_SNORM:
676         case PIPE_FORMAT_R16G16B16A16_SNORM:
677         case PIPE_FORMAT_R16_FLOAT:
678         case PIPE_FORMAT_R16G16_FLOAT:
679         case PIPE_FORMAT_R16G16B16A16_FLOAT:
680         case PIPE_FORMAT_R32_FLOAT:
681         case PIPE_FORMAT_R32G32B32A32_FLOAT:
682         case PIPE_FORMAT_L16_UNORM:
683         case PIPE_FORMAT_L16_SNORM:
684         case PIPE_FORMAT_L16_FLOAT:
685         case PIPE_FORMAT_L32_FLOAT:
686         case PIPE_FORMAT_I16_UNORM:
687         case PIPE_FORMAT_I16_SNORM:
688         case PIPE_FORMAT_I16_FLOAT:
689         case PIPE_FORMAT_I32_FLOAT:
690             return modifier |
691                 R300_C0_SEL_R | R300_C1_SEL_G |
692                 R300_C2_SEL_B | R300_C3_SEL_A;
693 
694         /* LA outputs. */
695         case PIPE_FORMAT_L16A16_UNORM:
696         case PIPE_FORMAT_L16A16_SNORM:
697         case PIPE_FORMAT_L16A16_FLOAT:
698         case PIPE_FORMAT_L32A32_FLOAT:
699             return modifier |
700                 R300_C0_SEL_R | R300_C1_SEL_A;
701 
702         default:
703             return ~0; /* Unsupported. */
704     }
705 }
706 
r300_translate_colormask_swizzle(enum pipe_format format)707 static uint32_t r300_translate_colormask_swizzle(enum pipe_format format)
708 {
709     switch (format) {
710     case PIPE_FORMAT_A8_UNORM:
711     case PIPE_FORMAT_A8_SNORM:
712     case PIPE_FORMAT_A16_UNORM:
713     case PIPE_FORMAT_A16_SNORM:
714     case PIPE_FORMAT_A16_FLOAT:
715     case PIPE_FORMAT_A32_FLOAT:
716         return COLORMASK_AAAA;
717 
718     case PIPE_FORMAT_I8_UNORM:
719     case PIPE_FORMAT_I8_SNORM:
720     case PIPE_FORMAT_L8_UNORM:
721     case PIPE_FORMAT_L8_SNORM:
722     case PIPE_FORMAT_R8_UNORM:
723     case PIPE_FORMAT_R8_SNORM:
724     case PIPE_FORMAT_R32_FLOAT:
725     case PIPE_FORMAT_L32_FLOAT:
726     case PIPE_FORMAT_I32_FLOAT:
727         return COLORMASK_RRRR;
728 
729     case PIPE_FORMAT_L8A8_SNORM:
730     case PIPE_FORMAT_L8A8_UNORM:
731     case PIPE_FORMAT_L16A16_UNORM:
732     case PIPE_FORMAT_L16A16_SNORM:
733     case PIPE_FORMAT_L16A16_FLOAT:
734     case PIPE_FORMAT_L32A32_FLOAT:
735         return COLORMASK_ARRA;
736 
737     case PIPE_FORMAT_R8G8_SNORM:
738     case PIPE_FORMAT_R8G8_UNORM:
739     case PIPE_FORMAT_R16G16_UNORM:
740     case PIPE_FORMAT_R16G16_SNORM:
741     case PIPE_FORMAT_R16G16_FLOAT:
742     case PIPE_FORMAT_R32G32_FLOAT:
743         return COLORMASK_GRRG;
744 
745     case PIPE_FORMAT_B5G6R5_UNORM:
746     case PIPE_FORMAT_B5G5R5A1_UNORM:
747     case PIPE_FORMAT_B5G5R5X1_UNORM:
748     case PIPE_FORMAT_B4G4R4A4_UNORM:
749     case PIPE_FORMAT_B4G4R4X4_UNORM:
750     case PIPE_FORMAT_B8G8R8A8_UNORM:
751     /*case PIPE_FORMAT_B8G8R8A8_SNORM:*/
752     case PIPE_FORMAT_B8G8R8X8_UNORM:
753     /*case PIPE_FORMAT_B8G8R8X8_SNORM:*/
754     case PIPE_FORMAT_B10G10R10A2_UNORM:
755         return COLORMASK_BGRA;
756 
757     case PIPE_FORMAT_R8G8B8X8_UNORM:
758     /*case PIPE_FORMAT_R8G8B8X8_SNORM:*/
759     case PIPE_FORMAT_R8G8B8A8_UNORM:
760     case PIPE_FORMAT_R8G8B8A8_SNORM:
761     case PIPE_FORMAT_R10G10B10A2_UNORM:
762     case PIPE_FORMAT_R10G10B10X2_SNORM:
763     case PIPE_FORMAT_R16_UNORM:
764     case PIPE_FORMAT_R16G16B16A16_UNORM:
765     case PIPE_FORMAT_R16_SNORM:
766     case PIPE_FORMAT_R16G16B16A16_SNORM:
767     case PIPE_FORMAT_R16_FLOAT:
768     case PIPE_FORMAT_R16G16B16A16_FLOAT:
769     case PIPE_FORMAT_R32G32B32A32_FLOAT:
770     case PIPE_FORMAT_L16_UNORM:
771     case PIPE_FORMAT_L16_SNORM:
772     case PIPE_FORMAT_L16_FLOAT:
773     case PIPE_FORMAT_I16_UNORM:
774     case PIPE_FORMAT_I16_SNORM:
775     case PIPE_FORMAT_I16_FLOAT:
776         return COLORMASK_RGBA;
777 
778     default:
779         return ~0; /* Unsupported. */
780     }
781 }
782 
r300_is_colorbuffer_format_supported(enum pipe_format format)783 boolean r300_is_colorbuffer_format_supported(enum pipe_format format)
784 {
785     return r300_translate_colorformat(format) != ~0 &&
786            r300_translate_out_fmt(format) != ~0 &&
787            r300_translate_colormask_swizzle(format) != ~0;
788 }
789 
r300_is_zs_format_supported(enum pipe_format format)790 boolean r300_is_zs_format_supported(enum pipe_format format)
791 {
792     return r300_translate_zsformat(format) != ~0;
793 }
794 
r300_is_sampler_format_supported(enum pipe_format format)795 boolean r300_is_sampler_format_supported(enum pipe_format format)
796 {
797     return r300_translate_texformat(format, 0, TRUE, FALSE) != ~0;
798 }
799 
r300_texture_setup_format_state(struct r300_screen * screen,struct r300_resource * tex,enum pipe_format format,unsigned level,unsigned width0_override,unsigned height0_override,struct r300_texture_format_state * out)800 void r300_texture_setup_format_state(struct r300_screen *screen,
801                                      struct r300_resource *tex,
802                                      enum pipe_format format,
803                                      unsigned level,
804                                      unsigned width0_override,
805                                      unsigned height0_override,
806                                      struct r300_texture_format_state *out)
807 {
808     struct pipe_resource *pt = &tex->b.b;
809     struct r300_texture_desc *desc = &tex->tex;
810     boolean is_r500 = screen->caps.is_r500;
811     unsigned width, height, depth;
812     unsigned txwidth, txheight, txdepth;
813 
814     width = u_minify(width0_override, level);
815     height = u_minify(height0_override, level);
816     depth = u_minify(desc->depth0, level);
817 
818     txwidth = (width - 1) & 0x7ff;
819     txheight = (height - 1) & 0x7ff;
820     txdepth = util_logbase2(depth) & 0xf;
821 
822     /* Mask out all the fields we change. */
823     out->format0 = 0;
824     out->format1 &= ~R300_TX_FORMAT_TEX_COORD_TYPE_MASK;
825     out->format2 &= R500_TXFORMAT_MSB;
826     out->tile_config = 0;
827 
828     /* Set sampler state. */
829     out->format0 =
830         R300_TX_WIDTH(txwidth) |
831         R300_TX_HEIGHT(txheight) |
832         R300_TX_DEPTH(txdepth);
833 
834     if (desc->uses_stride_addressing) {
835         unsigned stride =
836             r300_stride_to_width(format, desc->stride_in_bytes[level]);
837         /* rectangles love this */
838         out->format0 |= R300_TX_PITCH_EN;
839         out->format2 = (stride - 1) & 0x1fff;
840     }
841 
842     if (pt->target == PIPE_TEXTURE_CUBE) {
843         out->format1 |= R300_TX_FORMAT_CUBIC_MAP;
844     }
845     if (pt->target == PIPE_TEXTURE_3D) {
846         out->format1 |= R300_TX_FORMAT_3D;
847     }
848 
849     /* large textures on r500 */
850     if (is_r500)
851     {
852         unsigned us_width = txwidth;
853         unsigned us_height = txheight;
854         unsigned us_depth = txdepth;
855 
856         if (width > 2048) {
857             out->format2 |= R500_TXWIDTH_BIT11;
858         }
859         if (height > 2048) {
860             out->format2 |= R500_TXHEIGHT_BIT11;
861         }
862 
863         /* The US_FORMAT register fixes an R500 TX addressing bug.
864          * Don't ask why it must be set like this. I don't know it either. */
865         if (width > 2048) {
866             us_width = (0x000007FF + us_width) >> 1;
867             us_depth |= 0x0000000D;
868         }
869         if (height > 2048) {
870             us_height = (0x000007FF + us_height) >> 1;
871             us_depth |= 0x0000000E;
872         }
873 
874         out->us_format0 =
875             R300_TX_WIDTH(us_width) |
876             R300_TX_HEIGHT(us_height) |
877             R300_TX_DEPTH(us_depth);
878     }
879 
880     out->tile_config = R300_TXO_MACRO_TILE(desc->macrotile[level]) |
881                        R300_TXO_MICRO_TILE(desc->microtile);
882 }
883 
r300_texture_setup_fb_state(struct r300_surface * surf)884 static void r300_texture_setup_fb_state(struct r300_surface *surf)
885 {
886     struct r300_resource *tex = r300_resource(surf->base.texture);
887     unsigned level = surf->base.u.tex.level;
888     unsigned stride =
889       r300_stride_to_width(surf->base.format, tex->tex.stride_in_bytes[level]);
890 
891     /* Set framebuffer state. */
892     if (util_format_is_depth_or_stencil(surf->base.format)) {
893         surf->pitch =
894                 stride |
895                 R300_DEPTHMACROTILE(tex->tex.macrotile[level]) |
896                 R300_DEPTHMICROTILE(tex->tex.microtile);
897         surf->format = r300_translate_zsformat(surf->base.format);
898         surf->pitch_zmask = tex->tex.zmask_stride_in_pixels[level];
899         surf->pitch_hiz = tex->tex.hiz_stride_in_pixels[level];
900     } else {
901         surf->pitch =
902                 stride |
903                 r300_translate_colorformat(surf->base.format) |
904                 R300_COLOR_TILE(tex->tex.macrotile[level]) |
905                 R300_COLOR_MICROTILE(tex->tex.microtile);
906         surf->format = r300_translate_out_fmt(surf->base.format);
907         surf->colormask_swizzle =
908             r300_translate_colormask_swizzle(surf->base.format);
909     }
910 }
911 
r300_texture_destroy(struct pipe_screen * screen,struct pipe_resource * texture)912 static void r300_texture_destroy(struct pipe_screen *screen,
913                                  struct pipe_resource* texture)
914 {
915     struct r300_resource* tex = (struct r300_resource*)texture;
916 
917     pb_reference(&tex->buf, NULL);
918     FREE(tex);
919 }
920 
r300_resource_get_handle(struct pipe_screen * screen,struct pipe_resource * texture,struct winsys_handle * whandle)921 boolean r300_resource_get_handle(struct pipe_screen* screen,
922                                  struct pipe_resource *texture,
923                                  struct winsys_handle *whandle)
924 {
925     struct radeon_winsys *rws = r300_screen(screen)->rws;
926     struct r300_resource* tex = (struct r300_resource*)texture;
927 
928     if (!tex) {
929         return FALSE;
930     }
931 
932     return rws->buffer_get_handle(tex->buf,
933                                   tex->tex.stride_in_bytes[0], whandle);
934 }
935 
936 static const struct u_resource_vtbl r300_texture_vtbl =
937 {
938     NULL,                           /* get_handle */
939     r300_texture_destroy,           /* resource_destroy */
940     r300_texture_get_transfer,      /* get_transfer */
941     r300_texture_transfer_destroy,  /* transfer_destroy */
942     r300_texture_transfer_map,      /* transfer_map */
943     NULL,                           /* transfer_flush_region */
944     r300_texture_transfer_unmap,    /* transfer_unmap */
945     NULL /* transfer_inline_write */
946 };
947 
948 /* The common texture constructor. */
949 static struct r300_resource*
r300_texture_create_object(struct r300_screen * rscreen,const struct pipe_resource * base,enum radeon_bo_layout microtile,enum radeon_bo_layout macrotile,unsigned stride_in_bytes_override,struct pb_buffer * buffer)950 r300_texture_create_object(struct r300_screen *rscreen,
951                            const struct pipe_resource *base,
952                            enum radeon_bo_layout microtile,
953                            enum radeon_bo_layout macrotile,
954                            unsigned stride_in_bytes_override,
955                            struct pb_buffer *buffer)
956 {
957     struct radeon_winsys *rws = rscreen->rws;
958     struct r300_resource *tex = CALLOC_STRUCT(r300_resource);
959     if (!tex) {
960         if (buffer)
961             pb_reference(&buffer, NULL);
962         return NULL;
963     }
964 
965     if (base->nr_samples > 1)
966         return NULL;
967 
968     pipe_reference_init(&tex->b.b.reference, 1);
969     tex->b.b.screen = &rscreen->screen;
970     tex->b.b.usage = base->usage;
971     tex->b.b.bind = base->bind;
972     tex->b.b.flags = base->flags;
973     tex->b.vtbl = &r300_texture_vtbl;
974     tex->tex.microtile = microtile;
975     tex->tex.macrotile[0] = macrotile;
976     tex->tex.stride_in_bytes_override = stride_in_bytes_override;
977     tex->domain = base->flags & R300_RESOURCE_FLAG_TRANSFER ?
978                   RADEON_DOMAIN_GTT :
979                   RADEON_DOMAIN_VRAM | RADEON_DOMAIN_GTT;
980     tex->buf = buffer;
981 
982     r300_texture_desc_init(rscreen, tex, base);
983 
984     /* Create the backing buffer if needed. */
985     if (!tex->buf) {
986         tex->buf = rws->buffer_create(rws, tex->tex.size_in_bytes, 2048,
987                                       base->bind, tex->domain);
988 
989         if (!tex->buf) {
990             FREE(tex);
991             return NULL;
992         }
993     }
994 
995     tex->cs_buf = rws->buffer_get_cs_handle(tex->buf);
996 
997     rws->buffer_set_tiling(tex->buf, NULL,
998             tex->tex.microtile, tex->tex.macrotile[0],
999             0, 0, 0, 0, 0,
1000             tex->tex.stride_in_bytes[0]);
1001 
1002     return tex;
1003 }
1004 
1005 /* Create a new texture. */
r300_texture_create(struct pipe_screen * screen,const struct pipe_resource * base)1006 struct pipe_resource *r300_texture_create(struct pipe_screen *screen,
1007                                           const struct pipe_resource *base)
1008 {
1009     struct r300_screen *rscreen = r300_screen(screen);
1010     enum radeon_bo_layout microtile, macrotile;
1011 
1012     if ((base->flags & R300_RESOURCE_FLAG_TRANSFER) ||
1013         (base->bind & PIPE_BIND_SCANOUT)) {
1014         microtile = RADEON_LAYOUT_LINEAR;
1015         macrotile = RADEON_LAYOUT_LINEAR;
1016     } else {
1017         /* This will make the texture_create_function select the layout. */
1018         microtile = RADEON_LAYOUT_UNKNOWN;
1019         macrotile = RADEON_LAYOUT_UNKNOWN;
1020     }
1021 
1022     return (struct pipe_resource*)
1023            r300_texture_create_object(rscreen, base, microtile, macrotile,
1024                                       0, NULL);
1025 }
1026 
r300_texture_from_handle(struct pipe_screen * screen,const struct pipe_resource * base,struct winsys_handle * whandle)1027 struct pipe_resource *r300_texture_from_handle(struct pipe_screen *screen,
1028                                                const struct pipe_resource *base,
1029                                                struct winsys_handle *whandle)
1030 {
1031     struct r300_screen *rscreen = r300_screen(screen);
1032     struct radeon_winsys *rws = rscreen->rws;
1033     struct pb_buffer *buffer;
1034     enum radeon_bo_layout microtile, macrotile;
1035     unsigned stride;
1036 
1037     /* Support only 2D textures without mipmaps */
1038     if ((base->target != PIPE_TEXTURE_2D &&
1039           base->target != PIPE_TEXTURE_RECT) ||
1040         base->depth0 != 1 ||
1041         base->last_level != 0) {
1042         return NULL;
1043     }
1044 
1045     buffer = rws->buffer_from_handle(rws, whandle, &stride);
1046     if (!buffer)
1047         return NULL;
1048 
1049     rws->buffer_get_tiling(buffer, &microtile, &macrotile, NULL, NULL, NULL, NULL, NULL);
1050 
1051     /* Enforce a microtiled zbuffer. */
1052     if (util_format_is_depth_or_stencil(base->format) &&
1053         microtile == RADEON_LAYOUT_LINEAR) {
1054         switch (util_format_get_blocksize(base->format)) {
1055             case 4:
1056                 microtile = RADEON_LAYOUT_TILED;
1057                 break;
1058 
1059             case 2:
1060                 microtile = RADEON_LAYOUT_SQUARETILED;
1061                 break;
1062         }
1063     }
1064 
1065     return (struct pipe_resource*)
1066            r300_texture_create_object(rscreen, base, microtile, macrotile,
1067                                       stride, buffer);
1068 }
1069 
1070 /* Not required to implement u_resource_vtbl, consider moving to another file:
1071  */
r300_create_surface_custom(struct pipe_context * ctx,struct pipe_resource * texture,const struct pipe_surface * surf_tmpl,unsigned width0_override,unsigned height0_override)1072 struct pipe_surface* r300_create_surface_custom(struct pipe_context * ctx,
1073                                          struct pipe_resource* texture,
1074                                          const struct pipe_surface *surf_tmpl,
1075                                          unsigned width0_override,
1076 					 unsigned height0_override)
1077 {
1078     struct r300_resource* tex = r300_resource(texture);
1079     struct r300_surface* surface = CALLOC_STRUCT(r300_surface);
1080     unsigned level = surf_tmpl->u.tex.level;
1081 
1082     assert(surf_tmpl->u.tex.first_layer == surf_tmpl->u.tex.last_layer);
1083 
1084     if (surface) {
1085         uint32_t offset, tile_height;
1086 
1087         pipe_reference_init(&surface->base.reference, 1);
1088         pipe_resource_reference(&surface->base.texture, texture);
1089         surface->base.context = ctx;
1090         surface->base.format = surf_tmpl->format;
1091         surface->base.width = u_minify(width0_override, level);
1092         surface->base.height = u_minify(height0_override, level);
1093         surface->base.usage = surf_tmpl->usage;
1094         surface->base.u.tex.level = level;
1095         surface->base.u.tex.first_layer = surf_tmpl->u.tex.first_layer;
1096         surface->base.u.tex.last_layer = surf_tmpl->u.tex.last_layer;
1097 
1098         surface->buf = tex->buf;
1099         surface->cs_buf = tex->cs_buf;
1100 
1101         /* Prefer VRAM if there are multiple domains to choose from. */
1102         surface->domain = tex->domain;
1103         if (surface->domain & RADEON_DOMAIN_VRAM)
1104             surface->domain &= ~RADEON_DOMAIN_GTT;
1105 
1106         surface->offset = r300_texture_get_offset(tex, level,
1107                                                   surf_tmpl->u.tex.first_layer);
1108         r300_texture_setup_fb_state(surface);
1109 
1110         /* Parameters for the CBZB clear. */
1111         surface->cbzb_allowed = tex->tex.cbzb_allowed[level];
1112         surface->cbzb_width = align(surface->base.width, 64);
1113 
1114         /* Height must be aligned to the size of a tile. */
1115         tile_height = r300_get_pixel_alignment(surface->base.format,
1116                                                tex->b.b.nr_samples,
1117                                                tex->tex.microtile,
1118                                                tex->tex.macrotile[level],
1119                                                DIM_HEIGHT, 0);
1120 
1121         surface->cbzb_height = align((surface->base.height + 1) / 2,
1122                                      tile_height);
1123 
1124         /* Offset must be aligned to 2K and must point at the beginning
1125          * of a scanline. */
1126         offset = surface->offset +
1127                  tex->tex.stride_in_bytes[level] * surface->cbzb_height;
1128         surface->cbzb_midpoint_offset = offset & ~2047;
1129 
1130         surface->cbzb_pitch = surface->pitch & 0x1ffffc;
1131 
1132         if (util_format_get_blocksizebits(surface->base.format) == 32)
1133             surface->cbzb_format = R300_DEPTHFORMAT_24BIT_INT_Z_8BIT_STENCIL;
1134         else
1135             surface->cbzb_format = R300_DEPTHFORMAT_16BIT_INT_Z;
1136 
1137         DBG(r300_context(ctx), DBG_CBZB,
1138             "CBZB Allowed: %s, Dim: %ix%i, Misalignment: %i, Micro: %s, Macro: %s\n",
1139             surface->cbzb_allowed ? "YES" : " NO",
1140             surface->cbzb_width, surface->cbzb_height,
1141             offset & 2047,
1142             tex->tex.microtile ? "YES" : " NO",
1143             tex->tex.macrotile[level] ? "YES" : " NO");
1144     }
1145 
1146     return &surface->base;
1147 }
1148 
r300_create_surface(struct pipe_context * ctx,struct pipe_resource * texture,const struct pipe_surface * surf_tmpl)1149 struct pipe_surface* r300_create_surface(struct pipe_context * ctx,
1150                                          struct pipe_resource* texture,
1151                                          const struct pipe_surface *surf_tmpl)
1152 {
1153     return r300_create_surface_custom(ctx, texture, surf_tmpl,
1154                                       texture->width0,
1155                                       texture->height0);
1156 }
1157 
1158 /* Not required to implement u_resource_vtbl, consider moving to another file:
1159  */
r300_surface_destroy(struct pipe_context * ctx,struct pipe_surface * s)1160 void r300_surface_destroy(struct pipe_context *ctx, struct pipe_surface* s)
1161 {
1162     pipe_resource_reference(&s->texture, NULL);
1163     FREE(s);
1164 }
1165