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/format/u_format.h"
34 #include "util/format/u_format_s3tc.h"
35 #include "util/u_math.h"
36 #include "util/u_memory.h"
37 
38 #include "pipe/p_screen.h"
39 #include "frontend/winsys_handle.h"
40 
41 /* These formats are supported by swapping their bytes.
42  * The swizzles must be set exactly like their non-swapped counterparts,
43  * because byte-swapping is what reverses the component order, not swizzling.
44  *
45  * This function returns the format that must be used to program CB and TX
46  * swizzles.
47  */
r300_unbyteswap_array_format(enum pipe_format format)48 static enum pipe_format r300_unbyteswap_array_format(enum pipe_format format)
49 {
50     /* FIXME: Disabled on little endian because of a reported regression:
51      * https://bugs.freedesktop.org/show_bug.cgi?id=98869 */
52     if (PIPE_ENDIAN_NATIVE != PIPE_ENDIAN_BIG)
53         return format;
54 
55     /* Only BGRA 8888 array formats are supported for simplicity of
56      * the implementation. */
57     switch (format) {
58     case PIPE_FORMAT_A8R8G8B8_UNORM:
59         return PIPE_FORMAT_B8G8R8A8_UNORM;
60     case PIPE_FORMAT_A8R8G8B8_SRGB:
61         return PIPE_FORMAT_B8G8R8A8_SRGB;
62     case PIPE_FORMAT_X8R8G8B8_UNORM:
63         return PIPE_FORMAT_B8G8R8X8_UNORM;
64     case PIPE_FORMAT_X8R8G8B8_SRGB:
65         return PIPE_FORMAT_B8G8R8X8_SRGB;
66     default:
67         return format;
68     }
69 }
70 
r300_get_endian_swap(enum pipe_format format)71 static unsigned r300_get_endian_swap(enum pipe_format format)
72 {
73     const struct util_format_description *desc;
74     unsigned swap_size;
75 
76     if (r300_unbyteswap_array_format(format) != format)
77         return R300_SURF_DWORD_SWAP;
78 
79     if (PIPE_ENDIAN_NATIVE != PIPE_ENDIAN_BIG)
80         return R300_SURF_NO_SWAP;
81 
82     desc = util_format_description(format);
83     if (!desc)
84         return R300_SURF_NO_SWAP;
85 
86     /* Compressed formats should be in the little endian format. */
87     if (desc->block.width != 1 || desc->block.height != 1)
88         return R300_SURF_NO_SWAP;
89 
90     swap_size = desc->is_array ? desc->channel[0].size : desc->block.bits;
91 
92     switch (swap_size) {
93     default: /* shouldn't happen? */
94     case 8:
95         return R300_SURF_NO_SWAP;
96     case 16:
97         return R300_SURF_WORD_SWAP;
98     case 32:
99         return R300_SURF_DWORD_SWAP;
100     }
101 }
102 
r300_get_swizzle_combined(const unsigned char * swizzle_format,const unsigned char * swizzle_view,boolean dxtc_swizzle)103 unsigned r300_get_swizzle_combined(const unsigned char *swizzle_format,
104                                    const unsigned char *swizzle_view,
105                                    boolean dxtc_swizzle)
106 {
107     unsigned i;
108     unsigned char swizzle[4];
109     unsigned result = 0;
110     const uint32_t swizzle_shift[4] = {
111         R300_TX_FORMAT_R_SHIFT,
112         R300_TX_FORMAT_G_SHIFT,
113         R300_TX_FORMAT_B_SHIFT,
114         R300_TX_FORMAT_A_SHIFT
115     };
116     uint32_t swizzle_bit[4] = {
117         dxtc_swizzle ? R300_TX_FORMAT_Z : R300_TX_FORMAT_X,
118         R300_TX_FORMAT_Y,
119         dxtc_swizzle ? R300_TX_FORMAT_X : R300_TX_FORMAT_Z,
120         R300_TX_FORMAT_W
121     };
122 
123     if (swizzle_view) {
124         /* Combine two sets of swizzles. */
125         util_format_compose_swizzles(swizzle_format, swizzle_view, swizzle);
126     } else {
127         memcpy(swizzle, swizzle_format, 4);
128     }
129 
130     /* Get swizzle. */
131     for (i = 0; i < 4; i++) {
132         switch (swizzle[i]) {
133             case PIPE_SWIZZLE_Y:
134                 result |= swizzle_bit[1] << swizzle_shift[i];
135                 break;
136             case PIPE_SWIZZLE_Z:
137                 result |= swizzle_bit[2] << swizzle_shift[i];
138                 break;
139             case PIPE_SWIZZLE_W:
140                 result |= swizzle_bit[3] << swizzle_shift[i];
141                 break;
142             case PIPE_SWIZZLE_0:
143                 result |= R300_TX_FORMAT_ZERO << swizzle_shift[i];
144                 break;
145             case PIPE_SWIZZLE_1:
146                 result |= R300_TX_FORMAT_ONE << swizzle_shift[i];
147                 break;
148             default: /* PIPE_SWIZZLE_X */
149                 result |= swizzle_bit[0] << swizzle_shift[i];
150         }
151     }
152     return result;
153 }
154 
155 /* Translate a pipe_format into a useful texture format for sampling.
156  *
157  * Some special formats are translated directly using R300_EASY_TX_FORMAT,
158  * but the majority of them is translated in a generic way, automatically
159  * supporting all the formats hw can support.
160  *
161  * R300_EASY_TX_FORMAT swizzles the texture.
162  * Note the signature of R300_EASY_TX_FORMAT:
163  *   R300_EASY_TX_FORMAT(B, G, R, A, FORMAT);
164  *
165  * The FORMAT specifies how the texture sampler will treat the texture, and
166  * 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)167 uint32_t r300_translate_texformat(enum pipe_format format,
168                                   const unsigned char *swizzle_view,
169                                   boolean is_r500,
170                                   boolean dxtc_swizzle)
171 {
172     uint32_t result = 0;
173     const struct util_format_description *desc;
174     unsigned i;
175     boolean uniform = TRUE;
176     const uint32_t sign_bit[4] = {
177         R300_TX_FORMAT_SIGNED_W,
178         R300_TX_FORMAT_SIGNED_Z,
179         R300_TX_FORMAT_SIGNED_Y,
180         R300_TX_FORMAT_SIGNED_X,
181     };
182 
183     format = r300_unbyteswap_array_format(format);
184     desc = util_format_description(format);
185 
186     /* Colorspace (return non-RGB formats directly). */
187     switch (desc->colorspace) {
188         /* Depth stencil formats.
189          * Swizzles are added in r300_merge_textures_and_samplers. */
190         case UTIL_FORMAT_COLORSPACE_ZS:
191             switch (format) {
192                 case PIPE_FORMAT_Z16_UNORM:
193                     return R300_TX_FORMAT_X16;
194                 case PIPE_FORMAT_X8Z24_UNORM:
195                 case PIPE_FORMAT_S8_UINT_Z24_UNORM:
196                     if (is_r500)
197                         return R500_TX_FORMAT_Y8X24;
198                     else
199                         return R300_TX_FORMAT_Y16X16;
200                 default:
201                     return ~0; /* Unsupported. */
202             }
203 
204         /* YUV formats. */
205         case UTIL_FORMAT_COLORSPACE_YUV:
206             result |= R300_TX_FORMAT_YUV_TO_RGB;
207 
208             switch (format) {
209                 case PIPE_FORMAT_UYVY:
210                     return R300_EASY_TX_FORMAT(X, Y, Z, ONE, YVYU422) | result;
211                 case PIPE_FORMAT_YUYV:
212                     return R300_EASY_TX_FORMAT(X, Y, Z, ONE, VYUY422) | result;
213                 default:
214                     return ~0; /* Unsupported/unknown. */
215             }
216 
217         /* Add gamma correction. */
218         case UTIL_FORMAT_COLORSPACE_SRGB:
219             result |= R300_TX_FORMAT_GAMMA;
220             break;
221 
222         default:
223             switch (format) {
224                 /* Same as YUV but without the YUR->RGB conversion. */
225                 case PIPE_FORMAT_R8G8_B8G8_UNORM:
226                     return R300_EASY_TX_FORMAT(X, Y, Z, ONE, YVYU422) | result;
227                 case PIPE_FORMAT_G8R8_G8B8_UNORM:
228                     return R300_EASY_TX_FORMAT(X, Y, Z, ONE, VYUY422) | result;
229                 default:;
230             }
231     }
232 
233     /* Add swizzling. */
234     /* The RGTC1_SNORM and LATC1_SNORM swizzle is done in the shader. */
235     if (util_format_is_compressed(format) &&
236         dxtc_swizzle &&
237         format != PIPE_FORMAT_RGTC2_UNORM &&
238         format != PIPE_FORMAT_RGTC2_SNORM &&
239         format != PIPE_FORMAT_LATC2_UNORM &&
240         format != PIPE_FORMAT_LATC2_SNORM &&
241         format != PIPE_FORMAT_RGTC1_UNORM &&
242         format != PIPE_FORMAT_RGTC1_SNORM &&
243         format != PIPE_FORMAT_LATC1_UNORM &&
244         format != PIPE_FORMAT_LATC1_SNORM) {
245         result |= r300_get_swizzle_combined(desc->swizzle, swizzle_view,
246                                             TRUE);
247     } else {
248         result |= r300_get_swizzle_combined(desc->swizzle, swizzle_view,
249                                             FALSE);
250     }
251 
252     /* S3TC formats. */
253     if (desc->layout == UTIL_FORMAT_LAYOUT_S3TC) {
254         switch (format) {
255             case PIPE_FORMAT_DXT1_RGB:
256             case PIPE_FORMAT_DXT1_RGBA:
257             case PIPE_FORMAT_DXT1_SRGB:
258             case PIPE_FORMAT_DXT1_SRGBA:
259                 return R300_TX_FORMAT_DXT1 | result;
260             case PIPE_FORMAT_DXT3_RGBA:
261             case PIPE_FORMAT_DXT3_SRGBA:
262                 return R300_TX_FORMAT_DXT3 | result;
263             case PIPE_FORMAT_DXT5_RGBA:
264             case PIPE_FORMAT_DXT5_SRGBA:
265                 return R300_TX_FORMAT_DXT5 | result;
266             default:
267                 return ~0; /* Unsupported/unknown. */
268         }
269     }
270 
271     /* RGTC formats. */
272     if (desc->layout == UTIL_FORMAT_LAYOUT_RGTC) {
273         switch (format) {
274             case PIPE_FORMAT_RGTC1_SNORM:
275             case PIPE_FORMAT_LATC1_SNORM:
276                 result |= sign_bit[0];
277                 FALLTHROUGH;
278             case PIPE_FORMAT_LATC1_UNORM:
279             case PIPE_FORMAT_RGTC1_UNORM:
280                 return R500_TX_FORMAT_ATI1N | result;
281 
282             case PIPE_FORMAT_RGTC2_SNORM:
283             case PIPE_FORMAT_LATC2_SNORM:
284                 result |= sign_bit[1] | sign_bit[0];
285                 FALLTHROUGH;
286             case PIPE_FORMAT_RGTC2_UNORM:
287             case PIPE_FORMAT_LATC2_UNORM:
288                 return R400_TX_FORMAT_ATI2N | result;
289 
290             default:
291                 return ~0; /* Unsupported/unknown. */
292         }
293     }
294 
295     /* This is truly a special format.
296      * It stores R8G8 and B is computed using sqrt(1 - R^2 - G^2)
297      * in the sampler unit. Also known as D3DFMT_CxV8U8. */
298     if (format == PIPE_FORMAT_R8G8Bx_SNORM) {
299         return R300_TX_FORMAT_CxV8U8 | result;
300     }
301 
302     /* Integer and fixed-point 16.16 textures are not supported. */
303     for (i = 0; i < 4; i++) {
304         if (desc->channel[i].type == UTIL_FORMAT_TYPE_FIXED ||
305             ((desc->channel[i].type == UTIL_FORMAT_TYPE_SIGNED ||
306               desc->channel[i].type == UTIL_FORMAT_TYPE_UNSIGNED) &&
307              (!desc->channel[i].normalized ||
308               desc->channel[i].pure_integer))) {
309             return ~0; /* Unsupported/unknown. */
310         }
311     }
312 
313     /* Add sign. */
314     for (i = 0; i < desc->nr_channels; i++) {
315         if (desc->channel[i].type == UTIL_FORMAT_TYPE_SIGNED) {
316             result |= sign_bit[i];
317         }
318     }
319 
320     /* See whether the components are of the same size. */
321     for (i = 1; i < desc->nr_channels; i++) {
322         uniform = uniform && desc->channel[0].size == desc->channel[i].size;
323     }
324 
325     /* Non-uniform formats. */
326     if (!uniform) {
327         switch (desc->nr_channels) {
328             case 3:
329                 if (desc->channel[0].size == 5 &&
330                     desc->channel[1].size == 6 &&
331                     desc->channel[2].size == 5) {
332                     return R300_TX_FORMAT_Z5Y6X5 | result;
333                 }
334                 if (desc->channel[0].size == 5 &&
335                     desc->channel[1].size == 5 &&
336                     desc->channel[2].size == 6) {
337                     return R300_TX_FORMAT_Z6Y5X5 | result;
338                 }
339                 if (desc->channel[0].size == 2 &&
340                     desc->channel[1].size == 3 &&
341                     desc->channel[2].size == 3) {
342                     return R300_TX_FORMAT_Z3Y3X2 | result;
343                 }
344                 return ~0; /* Unsupported/unknown. */
345 
346             case 4:
347                 if (desc->channel[0].size == 5 &&
348                     desc->channel[1].size == 5 &&
349                     desc->channel[2].size == 5 &&
350                     desc->channel[3].size == 1) {
351                     return R300_TX_FORMAT_W1Z5Y5X5 | result;
352                 }
353                 if (desc->channel[0].size == 10 &&
354                     desc->channel[1].size == 10 &&
355                     desc->channel[2].size == 10 &&
356                     desc->channel[3].size == 2) {
357                     return R300_TX_FORMAT_W2Z10Y10X10 | result;
358                 }
359         }
360         return ~0; /* Unsupported/unknown. */
361     }
362 
363     /* Find the first non-VOID channel. */
364     for (i = 0; i < 4; i++) {
365         if (desc->channel[i].type != UTIL_FORMAT_TYPE_VOID) {
366             break;
367         }
368     }
369 
370     if (i == 4)
371         return ~0; /* Unsupported/unknown. */
372 
373     /* And finally, uniform formats. */
374     switch (desc->channel[i].type) {
375         case UTIL_FORMAT_TYPE_UNSIGNED:
376         case UTIL_FORMAT_TYPE_SIGNED:
377             if (!desc->channel[i].normalized &&
378                 desc->colorspace != UTIL_FORMAT_COLORSPACE_SRGB) {
379                 return ~0;
380             }
381 
382             switch (desc->channel[i].size) {
383                 case 4:
384                     switch (desc->nr_channels) {
385                         case 2:
386                             return R300_TX_FORMAT_Y4X4 | result;
387                         case 4:
388                             return R300_TX_FORMAT_W4Z4Y4X4 | result;
389                     }
390                     return ~0;
391 
392                 case 8:
393                     switch (desc->nr_channels) {
394                         case 1:
395                             return R300_TX_FORMAT_X8 | result;
396                         case 2:
397                             return R300_TX_FORMAT_Y8X8 | result;
398                         case 4:
399                             return R300_TX_FORMAT_W8Z8Y8X8 | result;
400                     }
401                     return ~0;
402 
403                 case 16:
404                     switch (desc->nr_channels) {
405                         case 1:
406                             return R300_TX_FORMAT_X16 | result;
407                         case 2:
408                             return R300_TX_FORMAT_Y16X16 | result;
409                         case 4:
410                             return R300_TX_FORMAT_W16Z16Y16X16 | result;
411                     }
412             }
413             return ~0;
414 
415         case UTIL_FORMAT_TYPE_FLOAT:
416             switch (desc->channel[i].size) {
417                 case 16:
418                     switch (desc->nr_channels) {
419                         case 1:
420                             return R300_TX_FORMAT_16F | result;
421                         case 2:
422                             return R300_TX_FORMAT_16F_16F | result;
423                         case 4:
424                             return R300_TX_FORMAT_16F_16F_16F_16F | result;
425                     }
426                     return ~0;
427 
428                 case 32:
429                     switch (desc->nr_channels) {
430                         case 1:
431                             return R300_TX_FORMAT_32F | result;
432                         case 2:
433                             return R300_TX_FORMAT_32F_32F | result;
434                         case 4:
435                             return R300_TX_FORMAT_32F_32F_32F_32F | result;
436                     }
437             }
438     }
439 
440     return ~0; /* Unsupported/unknown. */
441 }
442 
r500_tx_format_msb_bit(enum pipe_format format)443 uint32_t r500_tx_format_msb_bit(enum pipe_format format)
444 {
445     switch (format) {
446         case PIPE_FORMAT_RGTC1_UNORM:
447         case PIPE_FORMAT_RGTC1_SNORM:
448         case PIPE_FORMAT_LATC1_UNORM:
449         case PIPE_FORMAT_LATC1_SNORM:
450         case PIPE_FORMAT_X8Z24_UNORM:
451         case PIPE_FORMAT_S8_UINT_Z24_UNORM:
452             return R500_TXFORMAT_MSB;
453         default:
454             return 0;
455     }
456 }
457 
458 /* Buffer formats. */
459 
460 /* Colorbuffer formats. This is the unswizzled format of the RB3D block's
461  * output. For the swizzling of the targets, check the shader's format. */
r300_translate_colorformat(enum pipe_format format)462 static uint32_t r300_translate_colorformat(enum pipe_format format)
463 {
464     format = r300_unbyteswap_array_format(format);
465 
466     switch (format) {
467         /* 8-bit buffers. */
468         case PIPE_FORMAT_A8_UNORM:
469         case PIPE_FORMAT_A8_SNORM:
470         case PIPE_FORMAT_I8_UNORM:
471         case PIPE_FORMAT_I8_SNORM:
472         case PIPE_FORMAT_L8_UNORM:
473         case PIPE_FORMAT_L8_SNORM:
474         case PIPE_FORMAT_R8_UNORM:
475         case PIPE_FORMAT_R8_SNORM:
476             return R300_COLOR_FORMAT_I8;
477 
478         /* 16-bit buffers. */
479         case PIPE_FORMAT_L8A8_UNORM:
480         case PIPE_FORMAT_L8A8_SNORM:
481         case PIPE_FORMAT_R8G8_UNORM:
482         case PIPE_FORMAT_R8G8_SNORM:
483         case PIPE_FORMAT_R8A8_UNORM:
484         case PIPE_FORMAT_R8A8_SNORM:
485         /* These formats work fine with UV88 if US_OUT_FMT is set correctly. */
486         case PIPE_FORMAT_A16_UNORM:
487         case PIPE_FORMAT_A16_SNORM:
488         case PIPE_FORMAT_A16_FLOAT:
489         case PIPE_FORMAT_L16_UNORM:
490         case PIPE_FORMAT_L16_SNORM:
491         case PIPE_FORMAT_L16_FLOAT:
492         case PIPE_FORMAT_I16_UNORM:
493         case PIPE_FORMAT_I16_SNORM:
494         case PIPE_FORMAT_I16_FLOAT:
495         case PIPE_FORMAT_R16_UNORM:
496         case PIPE_FORMAT_R16_SNORM:
497         case PIPE_FORMAT_R16_FLOAT:
498             return R300_COLOR_FORMAT_UV88;
499 
500         case PIPE_FORMAT_B5G6R5_UNORM:
501             return R300_COLOR_FORMAT_RGB565;
502 
503         case PIPE_FORMAT_B5G5R5A1_UNORM:
504         case PIPE_FORMAT_B5G5R5X1_UNORM:
505             return R300_COLOR_FORMAT_ARGB1555;
506 
507         case PIPE_FORMAT_B4G4R4A4_UNORM:
508         case PIPE_FORMAT_B4G4R4X4_UNORM:
509             return R300_COLOR_FORMAT_ARGB4444;
510 
511         /* 32-bit buffers. */
512         case PIPE_FORMAT_B8G8R8A8_UNORM:
513         /*case PIPE_FORMAT_B8G8R8A8_SNORM:*/
514         case PIPE_FORMAT_B8G8R8X8_UNORM:
515         /*case PIPE_FORMAT_B8G8R8X8_SNORM:*/
516         case PIPE_FORMAT_R8G8B8A8_UNORM:
517         case PIPE_FORMAT_R8G8B8A8_SNORM:
518         case PIPE_FORMAT_R8G8B8X8_UNORM:
519         case PIPE_FORMAT_R8G8B8X8_SNORM:
520         /* These formats work fine with ARGB8888 if US_OUT_FMT is set
521          * correctly. */
522         case PIPE_FORMAT_R16G16_UNORM:
523         case PIPE_FORMAT_R16G16_SNORM:
524         case PIPE_FORMAT_R16G16_FLOAT:
525         case PIPE_FORMAT_L16A16_UNORM:
526         case PIPE_FORMAT_L16A16_SNORM:
527         case PIPE_FORMAT_L16A16_FLOAT:
528         case PIPE_FORMAT_R16A16_UNORM:
529         case PIPE_FORMAT_R16A16_SNORM:
530         case PIPE_FORMAT_R16A16_FLOAT:
531         case PIPE_FORMAT_A32_FLOAT:
532         case PIPE_FORMAT_L32_FLOAT:
533         case PIPE_FORMAT_I32_FLOAT:
534         case PIPE_FORMAT_R32_FLOAT:
535             return R300_COLOR_FORMAT_ARGB8888;
536 
537         case PIPE_FORMAT_R10G10B10A2_UNORM:
538         case PIPE_FORMAT_R10G10B10X2_SNORM:
539         case PIPE_FORMAT_B10G10R10A2_UNORM:
540         case PIPE_FORMAT_B10G10R10X2_UNORM:
541             return R500_COLOR_FORMAT_ARGB2101010;  /* R5xx-only? */
542 
543         /* 64-bit buffers. */
544         case PIPE_FORMAT_R16G16B16A16_UNORM:
545         case PIPE_FORMAT_R16G16B16A16_SNORM:
546         case PIPE_FORMAT_R16G16B16A16_FLOAT:
547         case PIPE_FORMAT_R16G16B16X16_UNORM:
548         case PIPE_FORMAT_R16G16B16X16_SNORM:
549         case PIPE_FORMAT_R16G16B16X16_FLOAT:
550         /* These formats work fine with ARGB16161616 if US_OUT_FMT is set
551          * correctly. */
552         case PIPE_FORMAT_R32G32_FLOAT:
553         case PIPE_FORMAT_L32A32_FLOAT:
554         case PIPE_FORMAT_R32A32_FLOAT:
555             return R300_COLOR_FORMAT_ARGB16161616;
556 
557         /* 128-bit buffers. */
558         case PIPE_FORMAT_R32G32B32A32_FLOAT:
559         case PIPE_FORMAT_R32G32B32X32_FLOAT:
560             return R300_COLOR_FORMAT_ARGB32323232;
561 
562         /* YUV buffers. */
563         case PIPE_FORMAT_UYVY:
564             return R300_COLOR_FORMAT_YVYU;
565         case PIPE_FORMAT_YUYV:
566             return R300_COLOR_FORMAT_VYUY;
567         default:
568             return ~0; /* Unsupported. */
569     }
570 }
571 
572 /* Depthbuffer and stencilbuffer. Thankfully, we only support two flavors. */
r300_translate_zsformat(enum pipe_format format)573 static uint32_t r300_translate_zsformat(enum pipe_format format)
574 {
575     switch (format) {
576         /* 16-bit depth, no stencil */
577         case PIPE_FORMAT_Z16_UNORM:
578             return R300_DEPTHFORMAT_16BIT_INT_Z;
579         /* 24-bit depth, ignored stencil */
580         case PIPE_FORMAT_X8Z24_UNORM:
581         /* 24-bit depth, 8-bit stencil */
582         case PIPE_FORMAT_S8_UINT_Z24_UNORM:
583             return R300_DEPTHFORMAT_24BIT_INT_Z_8BIT_STENCIL;
584         default:
585             return ~0; /* Unsupported. */
586     }
587 }
588 
589 /* Shader output formats. This is essentially the swizzle from the shader
590  * to the RB3D block.
591  *
592  * Note that formats are stored from C3 to C0. */
r300_translate_out_fmt(enum pipe_format format)593 static uint32_t r300_translate_out_fmt(enum pipe_format format)
594 {
595     uint32_t modifier = 0;
596     unsigned i;
597     const struct util_format_description *desc;
598     boolean uniform_sign;
599 
600     format = r300_unbyteswap_array_format(format);
601     desc = util_format_description(format);
602 
603     /* Find the first non-VOID channel. */
604     for (i = 0; i < 4; i++) {
605         if (desc->channel[i].type != UTIL_FORMAT_TYPE_VOID) {
606             break;
607         }
608     }
609 
610     if (i == 4)
611         return ~0; /* Unsupported/unknown. */
612 
613     /* Specifies how the shader output is written to the fog unit. */
614     switch (desc->channel[i].type) {
615     case UTIL_FORMAT_TYPE_FLOAT:
616         switch (desc->channel[i].size) {
617         case 32:
618             switch (desc->nr_channels) {
619             case 1:
620                 modifier |= R300_US_OUT_FMT_C_32_FP;
621                 break;
622             case 2:
623                 modifier |= R300_US_OUT_FMT_C2_32_FP;
624                 break;
625             case 4:
626                 modifier |= R300_US_OUT_FMT_C4_32_FP;
627                 break;
628             }
629             break;
630 
631         case 16:
632             switch (desc->nr_channels) {
633             case 1:
634                 modifier |= R300_US_OUT_FMT_C_16_FP;
635                 break;
636             case 2:
637                 modifier |= R300_US_OUT_FMT_C2_16_FP;
638                 break;
639             case 4:
640                 modifier |= R300_US_OUT_FMT_C4_16_FP;
641                 break;
642             }
643             break;
644         }
645         break;
646 
647     default:
648         switch (desc->channel[i].size) {
649         case 16:
650             switch (desc->nr_channels) {
651             case 1:
652                 modifier |= R300_US_OUT_FMT_C_16;
653                 break;
654             case 2:
655                 modifier |= R300_US_OUT_FMT_C2_16;
656                 break;
657             case 4:
658                 modifier |= R300_US_OUT_FMT_C4_16;
659                 break;
660             }
661             break;
662 
663         case 10:
664             modifier |= R300_US_OUT_FMT_C4_10;
665             break;
666 
667         default:
668             /* C4_8 seems to be used for the formats whose pixel size
669              * is <= 32 bits. */
670             modifier |= R300_US_OUT_FMT_C4_8;
671             break;
672         }
673     }
674 
675     /* Add sign. */
676     uniform_sign = TRUE;
677     for (i = 0; i < desc->nr_channels; i++)
678         if (desc->channel[i].type != UTIL_FORMAT_TYPE_SIGNED)
679             uniform_sign = FALSE;
680 
681     if (uniform_sign)
682         modifier |= R300_OUT_SIGN(0xf);
683 
684     /* Add swizzles and return. */
685     switch (format) {
686         /*** Special cases (non-standard channel mapping) ***/
687 
688         /* X8
689          * COLORFORMAT_I8 stores the Z component (C2). */
690         case PIPE_FORMAT_A8_UNORM:
691         case PIPE_FORMAT_A8_SNORM:
692             return modifier | R300_C2_SEL_A;
693         case PIPE_FORMAT_I8_UNORM:
694         case PIPE_FORMAT_I8_SNORM:
695         case PIPE_FORMAT_L8_UNORM:
696         case PIPE_FORMAT_L8_SNORM:
697         case PIPE_FORMAT_R8_UNORM:
698         case PIPE_FORMAT_R8_SNORM:
699             return modifier | R300_C2_SEL_R;
700 
701         /* X8Y8
702          * COLORFORMAT_UV88 stores ZX (C2 and C0). */
703         case PIPE_FORMAT_L8A8_SNORM:
704         case PIPE_FORMAT_L8A8_UNORM:
705         case PIPE_FORMAT_R8A8_SNORM:
706         case PIPE_FORMAT_R8A8_UNORM:
707             return modifier | R300_C0_SEL_A | R300_C2_SEL_R;
708         case PIPE_FORMAT_R8G8_SNORM:
709         case PIPE_FORMAT_R8G8_UNORM:
710             return modifier | R300_C0_SEL_G | R300_C2_SEL_R;
711 
712         /* X32Y32
713          * ARGB16161616 stores XZ for RG32F */
714         case PIPE_FORMAT_R32G32_FLOAT:
715             return modifier | R300_C0_SEL_R | R300_C2_SEL_G;
716 
717         /*** Generic cases (standard channel mapping) ***/
718 
719         /* BGRA outputs. */
720         case PIPE_FORMAT_B5G6R5_UNORM:
721         case PIPE_FORMAT_B5G5R5A1_UNORM:
722         case PIPE_FORMAT_B5G5R5X1_UNORM:
723         case PIPE_FORMAT_B4G4R4A4_UNORM:
724         case PIPE_FORMAT_B4G4R4X4_UNORM:
725         case PIPE_FORMAT_B8G8R8A8_UNORM:
726         /*case PIPE_FORMAT_B8G8R8A8_SNORM:*/
727         case PIPE_FORMAT_B8G8R8X8_UNORM:
728         /*case PIPE_FORMAT_B8G8R8X8_SNORM:*/
729         case PIPE_FORMAT_B10G10R10A2_UNORM:
730         case PIPE_FORMAT_B10G10R10X2_UNORM:
731             return modifier |
732                 R300_C0_SEL_B | R300_C1_SEL_G |
733                 R300_C2_SEL_R | R300_C3_SEL_A;
734 
735         /* ARGB outputs. */
736         case PIPE_FORMAT_A16_UNORM:
737         case PIPE_FORMAT_A16_SNORM:
738         case PIPE_FORMAT_A16_FLOAT:
739         case PIPE_FORMAT_A32_FLOAT:
740             return modifier |
741                 R300_C0_SEL_A | R300_C1_SEL_R |
742                 R300_C2_SEL_G | R300_C3_SEL_B;
743 
744         /* RGBA outputs. */
745         case PIPE_FORMAT_R8G8B8X8_UNORM:
746         case PIPE_FORMAT_R8G8B8X8_SNORM:
747         case PIPE_FORMAT_R8G8B8A8_UNORM:
748         case PIPE_FORMAT_R8G8B8A8_SNORM:
749         case PIPE_FORMAT_R10G10B10A2_UNORM:
750         case PIPE_FORMAT_R10G10B10X2_SNORM:
751         case PIPE_FORMAT_R16_UNORM:
752         case PIPE_FORMAT_R16G16_UNORM:
753         case PIPE_FORMAT_R16G16B16A16_UNORM:
754         case PIPE_FORMAT_R16_SNORM:
755         case PIPE_FORMAT_R16G16_SNORM:
756         case PIPE_FORMAT_R16G16B16A16_SNORM:
757         case PIPE_FORMAT_R16_FLOAT:
758         case PIPE_FORMAT_R16G16_FLOAT:
759         case PIPE_FORMAT_R16G16B16A16_FLOAT:
760         case PIPE_FORMAT_R32_FLOAT:
761         case PIPE_FORMAT_R32G32B32A32_FLOAT:
762         case PIPE_FORMAT_R32G32B32X32_FLOAT:
763         case PIPE_FORMAT_L16_UNORM:
764         case PIPE_FORMAT_L16_SNORM:
765         case PIPE_FORMAT_L16_FLOAT:
766         case PIPE_FORMAT_L32_FLOAT:
767         case PIPE_FORMAT_I16_UNORM:
768         case PIPE_FORMAT_I16_SNORM:
769         case PIPE_FORMAT_I16_FLOAT:
770         case PIPE_FORMAT_I32_FLOAT:
771         case PIPE_FORMAT_R16G16B16X16_UNORM:
772         case PIPE_FORMAT_R16G16B16X16_SNORM:
773         case PIPE_FORMAT_R16G16B16X16_FLOAT:
774             return modifier |
775                 R300_C0_SEL_R | R300_C1_SEL_G |
776                 R300_C2_SEL_B | R300_C3_SEL_A;
777 
778         /* LA outputs. */
779         case PIPE_FORMAT_L16A16_UNORM:
780         case PIPE_FORMAT_L16A16_SNORM:
781         case PIPE_FORMAT_L16A16_FLOAT:
782         case PIPE_FORMAT_R16A16_UNORM:
783         case PIPE_FORMAT_R16A16_SNORM:
784         case PIPE_FORMAT_R16A16_FLOAT:
785         case PIPE_FORMAT_L32A32_FLOAT:
786         case PIPE_FORMAT_R32A32_FLOAT:
787             return modifier |
788                 R300_C0_SEL_R | R300_C1_SEL_A;
789 
790         default:
791             return ~0; /* Unsupported. */
792     }
793 }
794 
r300_translate_colormask_swizzle(enum pipe_format format)795 static uint32_t r300_translate_colormask_swizzle(enum pipe_format format)
796 {
797     format = r300_unbyteswap_array_format(format);
798 
799     switch (format) {
800     case PIPE_FORMAT_A8_UNORM:
801     case PIPE_FORMAT_A8_SNORM:
802     case PIPE_FORMAT_A16_UNORM:
803     case PIPE_FORMAT_A16_SNORM:
804     case PIPE_FORMAT_A16_FLOAT:
805     case PIPE_FORMAT_A32_FLOAT:
806         return COLORMASK_AAAA;
807 
808     case PIPE_FORMAT_I8_UNORM:
809     case PIPE_FORMAT_I8_SNORM:
810     case PIPE_FORMAT_L8_UNORM:
811     case PIPE_FORMAT_L8_SNORM:
812     case PIPE_FORMAT_R8_UNORM:
813     case PIPE_FORMAT_R8_SNORM:
814     case PIPE_FORMAT_R32_FLOAT:
815     case PIPE_FORMAT_L32_FLOAT:
816     case PIPE_FORMAT_I32_FLOAT:
817         return COLORMASK_RRRR;
818 
819     case PIPE_FORMAT_L8A8_SNORM:
820     case PIPE_FORMAT_L8A8_UNORM:
821     case PIPE_FORMAT_R8A8_UNORM:
822     case PIPE_FORMAT_R8A8_SNORM:
823     case PIPE_FORMAT_L16A16_UNORM:
824     case PIPE_FORMAT_L16A16_SNORM:
825     case PIPE_FORMAT_L16A16_FLOAT:
826     case PIPE_FORMAT_R16A16_UNORM:
827     case PIPE_FORMAT_R16A16_SNORM:
828     case PIPE_FORMAT_R16A16_FLOAT:
829     case PIPE_FORMAT_L32A32_FLOAT:
830     case PIPE_FORMAT_R32A32_FLOAT:
831         return COLORMASK_ARRA;
832 
833     case PIPE_FORMAT_R8G8_SNORM:
834     case PIPE_FORMAT_R8G8_UNORM:
835     case PIPE_FORMAT_R16G16_UNORM:
836     case PIPE_FORMAT_R16G16_SNORM:
837     case PIPE_FORMAT_R16G16_FLOAT:
838     case PIPE_FORMAT_R32G32_FLOAT:
839         return COLORMASK_GRRG;
840 
841     case PIPE_FORMAT_B5G5R5X1_UNORM:
842     case PIPE_FORMAT_B4G4R4X4_UNORM:
843     case PIPE_FORMAT_B8G8R8X8_UNORM:
844     /*case PIPE_FORMAT_B8G8R8X8_SNORM:*/
845     case PIPE_FORMAT_B10G10R10X2_UNORM:
846         return COLORMASK_BGRX;
847 
848     case PIPE_FORMAT_B5G6R5_UNORM:
849     case PIPE_FORMAT_B5G5R5A1_UNORM:
850     case PIPE_FORMAT_B4G4R4A4_UNORM:
851     case PIPE_FORMAT_B8G8R8A8_UNORM:
852     /*case PIPE_FORMAT_B8G8R8A8_SNORM:*/
853     case PIPE_FORMAT_B10G10R10A2_UNORM:
854         return COLORMASK_BGRA;
855 
856     case PIPE_FORMAT_R8G8B8X8_UNORM:
857     /* RGBX_SNORM formats are broken for an unknown reason */
858     /*case PIPE_FORMAT_R8G8B8X8_SNORM:*/
859     /*case PIPE_FORMAT_R10G10B10X2_SNORM:*/
860     case PIPE_FORMAT_R16G16B16X16_UNORM:
861     /*case PIPE_FORMAT_R16G16B16X16_SNORM:*/
862     case PIPE_FORMAT_R16G16B16X16_FLOAT:
863     case PIPE_FORMAT_R32G32B32X32_FLOAT:
864         return COLORMASK_RGBX;
865 
866     case PIPE_FORMAT_R8G8B8A8_UNORM:
867     case PIPE_FORMAT_R8G8B8A8_SNORM:
868     case PIPE_FORMAT_R10G10B10A2_UNORM:
869     case PIPE_FORMAT_R16_UNORM:
870     case PIPE_FORMAT_R16G16B16A16_UNORM:
871     case PIPE_FORMAT_R16_SNORM:
872     case PIPE_FORMAT_R16G16B16A16_SNORM:
873     case PIPE_FORMAT_R16_FLOAT:
874     case PIPE_FORMAT_R16G16B16A16_FLOAT:
875     case PIPE_FORMAT_R32G32B32A32_FLOAT:
876     case PIPE_FORMAT_L16_UNORM:
877     case PIPE_FORMAT_L16_SNORM:
878     case PIPE_FORMAT_L16_FLOAT:
879     case PIPE_FORMAT_I16_UNORM:
880     case PIPE_FORMAT_I16_SNORM:
881     case PIPE_FORMAT_I16_FLOAT:
882         return COLORMASK_RGBA;
883 
884     default:
885         return ~0; /* Unsupported. */
886     }
887 }
888 
r300_is_colorbuffer_format_supported(enum pipe_format format)889 boolean r300_is_colorbuffer_format_supported(enum pipe_format format)
890 {
891     return r300_translate_colorformat(format) != ~0 &&
892            r300_translate_out_fmt(format) != ~0 &&
893            r300_translate_colormask_swizzle(format) != ~0;
894 }
895 
r300_is_zs_format_supported(enum pipe_format format)896 boolean r300_is_zs_format_supported(enum pipe_format format)
897 {
898     return r300_translate_zsformat(format) != ~0;
899 }
900 
r300_is_sampler_format_supported(enum pipe_format format)901 boolean r300_is_sampler_format_supported(enum pipe_format format)
902 {
903     return r300_translate_texformat(format, 0, TRUE, FALSE) != ~0;
904 }
905 
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)906 void r300_texture_setup_format_state(struct r300_screen *screen,
907                                      struct r300_resource *tex,
908                                      enum pipe_format format,
909                                      unsigned level,
910                                      unsigned width0_override,
911                                      unsigned height0_override,
912                                      struct r300_texture_format_state *out)
913 {
914     struct pipe_resource *pt = &tex->b;
915     struct r300_texture_desc *desc = &tex->tex;
916     boolean is_r500 = screen->caps.is_r500;
917     unsigned width, height, depth;
918     unsigned txwidth, txheight, txdepth;
919 
920     width = u_minify(width0_override, level);
921     height = u_minify(height0_override, level);
922     depth = u_minify(desc->depth0, level);
923 
924     txwidth = (width - 1) & 0x7ff;
925     txheight = (height - 1) & 0x7ff;
926     txdepth = util_logbase2(depth) & 0xf;
927 
928     /* Mask out all the fields we change. */
929     out->format0 = 0;
930     out->format1 &= ~R300_TX_FORMAT_TEX_COORD_TYPE_MASK;
931     out->format2 &= R500_TXFORMAT_MSB;
932     out->tile_config = 0;
933 
934     /* Set sampler state. */
935     out->format0 =
936         R300_TX_WIDTH(txwidth) |
937         R300_TX_HEIGHT(txheight) |
938         R300_TX_DEPTH(txdepth);
939 
940     if (desc->uses_stride_addressing) {
941         unsigned stride =
942             r300_stride_to_width(format, desc->stride_in_bytes[level]);
943         /* rectangles love this */
944         out->format0 |= R300_TX_PITCH_EN;
945         out->format2 = (stride - 1) & 0x1fff;
946     }
947 
948     if (pt->target == PIPE_TEXTURE_CUBE) {
949         out->format1 |= R300_TX_FORMAT_CUBIC_MAP;
950     }
951     if (pt->target == PIPE_TEXTURE_3D) {
952         out->format1 |= R300_TX_FORMAT_3D;
953     }
954 
955     /* large textures on r500 */
956     if (is_r500)
957     {
958         unsigned us_width = txwidth;
959         unsigned us_height = txheight;
960         unsigned us_depth = txdepth;
961 
962         if (width > 2048) {
963             out->format2 |= R500_TXWIDTH_BIT11;
964         }
965         if (height > 2048) {
966             out->format2 |= R500_TXHEIGHT_BIT11;
967         }
968 
969         /* The US_FORMAT register fixes an R500 TX addressing bug.
970          * Don't ask why it must be set like this. I don't know it either. */
971         if (width > 2048) {
972             us_width = (0x000007FF + us_width) >> 1;
973             us_depth |= 0x0000000D;
974         }
975         if (height > 2048) {
976             us_height = (0x000007FF + us_height) >> 1;
977             us_depth |= 0x0000000E;
978         }
979 
980         out->us_format0 =
981             R300_TX_WIDTH(us_width) |
982             R300_TX_HEIGHT(us_height) |
983             R300_TX_DEPTH(us_depth);
984     }
985 
986     out->tile_config = R300_TXO_MACRO_TILE(desc->macrotile[level]) |
987                        R300_TXO_MICRO_TILE(desc->microtile) |
988                        R300_TXO_ENDIAN(r300_get_endian_swap(format));
989 }
990 
r300_texture_setup_fb_state(struct r300_surface * surf)991 static void r300_texture_setup_fb_state(struct r300_surface *surf)
992 {
993     struct r300_resource *tex = r300_resource(surf->base.texture);
994     unsigned level = surf->base.u.tex.level;
995     unsigned stride =
996       r300_stride_to_width(surf->base.format, tex->tex.stride_in_bytes[level]);
997 
998     /* Set framebuffer state. */
999     if (util_format_is_depth_or_stencil(surf->base.format)) {
1000         surf->pitch =
1001                 stride |
1002                 R300_DEPTHMACROTILE(tex->tex.macrotile[level]) |
1003                 R300_DEPTHMICROTILE(tex->tex.microtile) |
1004                 R300_DEPTHENDIAN(r300_get_endian_swap(surf->base.format));
1005         surf->format = r300_translate_zsformat(surf->base.format);
1006         surf->pitch_zmask = tex->tex.zmask_stride_in_pixels[level];
1007         surf->pitch_hiz = tex->tex.hiz_stride_in_pixels[level];
1008     } else {
1009         enum pipe_format format = util_format_linear(surf->base.format);
1010 
1011         surf->pitch =
1012                 stride |
1013                 r300_translate_colorformat(format) |
1014                 R300_COLOR_TILE(tex->tex.macrotile[level]) |
1015                 R300_COLOR_MICROTILE(tex->tex.microtile) |
1016                 R300_COLOR_ENDIAN(r300_get_endian_swap(format));
1017         surf->format = r300_translate_out_fmt(format);
1018         surf->colormask_swizzle =
1019             r300_translate_colormask_swizzle(format);
1020         surf->pitch_cmask = tex->tex.cmask_stride_in_pixels;
1021     }
1022 }
1023 
r300_resource_get_handle(struct pipe_screen * screen,struct pipe_context * ctx,struct pipe_resource * texture,struct winsys_handle * whandle,unsigned usage)1024 bool r300_resource_get_handle(struct pipe_screen* screen,
1025                               struct pipe_context *ctx,
1026                               struct pipe_resource *texture,
1027                               struct winsys_handle *whandle,
1028                               unsigned usage)
1029 {
1030     struct radeon_winsys *rws = r300_screen(screen)->rws;
1031     struct r300_resource* tex = (struct r300_resource*)texture;
1032 
1033     if (!tex) {
1034         return false;
1035     }
1036 
1037     whandle->stride = tex->tex.stride_in_bytes[0];
1038     whandle->offset = 0;
1039 
1040     return rws->buffer_get_handle(rws, tex->buf, whandle);
1041 }
1042 
1043 /* The common texture constructor. */
1044 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)1045 r300_texture_create_object(struct r300_screen *rscreen,
1046                            const struct pipe_resource *base,
1047                            enum radeon_bo_layout microtile,
1048                            enum radeon_bo_layout macrotile,
1049                            unsigned stride_in_bytes_override,
1050                            struct pb_buffer *buffer)
1051 {
1052     struct radeon_winsys *rws = rscreen->rws;
1053     struct r300_resource *tex = NULL;
1054     struct radeon_bo_metadata tiling = {};
1055 
1056     tex = CALLOC_STRUCT(r300_resource);
1057     if (!tex) {
1058         goto fail;
1059     }
1060 
1061     pipe_reference_init(&tex->b.reference, 1);
1062     tex->b.screen = &rscreen->screen;
1063     tex->b.usage = base->usage;
1064     tex->b.bind = base->bind;
1065     tex->b.flags = base->flags;
1066     tex->tex.microtile = microtile;
1067     tex->tex.macrotile[0] = macrotile;
1068     tex->tex.stride_in_bytes_override = stride_in_bytes_override;
1069     tex->domain = (base->flags & R300_RESOURCE_FLAG_TRANSFER ||
1070                    base->usage == PIPE_USAGE_STAGING) ? RADEON_DOMAIN_GTT :
1071                   base->nr_samples > 1 ? RADEON_DOMAIN_VRAM :
1072                                          RADEON_DOMAIN_VRAM | RADEON_DOMAIN_GTT;
1073     tex->buf = buffer;
1074 
1075     r300_texture_desc_init(rscreen, tex, base);
1076 
1077     /* Figure out the ideal placement for the texture.. */
1078     if (tex->domain & RADEON_DOMAIN_VRAM &&
1079         tex->tex.size_in_bytes >= rscreen->info.vram_size) {
1080         tex->domain &= ~RADEON_DOMAIN_VRAM;
1081         tex->domain |= RADEON_DOMAIN_GTT;
1082     }
1083     if (tex->domain & RADEON_DOMAIN_GTT &&
1084         tex->tex.size_in_bytes >= rscreen->info.gart_size) {
1085         tex->domain &= ~RADEON_DOMAIN_GTT;
1086     }
1087     /* Just fail if the texture is too large. */
1088     if (!tex->domain) {
1089         goto fail;
1090     }
1091 
1092     /* Create the backing buffer if needed. */
1093     if (!tex->buf) {
1094         /* Only use the first domain for allocation. Multiple domains are not allowed. */
1095         unsigned alloc_domain =
1096             tex->domain & RADEON_DOMAIN_VRAM ? RADEON_DOMAIN_VRAM :
1097                                                RADEON_DOMAIN_GTT;
1098 
1099         tex->buf = rws->buffer_create(rws, tex->tex.size_in_bytes, 2048,
1100                                       alloc_domain,
1101                                       RADEON_FLAG_NO_SUBALLOC |
1102                                       /* Use the reusable pool: */
1103                                       RADEON_FLAG_NO_INTERPROCESS_SHARING);
1104 
1105         if (!tex->buf) {
1106             goto fail;
1107         }
1108     }
1109 
1110     if (SCREEN_DBG_ON(rscreen, DBG_MSAA) && base->nr_samples > 1) {
1111         fprintf(stderr, "r300: %ix MSAA %s buffer created\n",
1112                 base->nr_samples,
1113                 util_format_is_depth_or_stencil(base->format) ? "depth" : "color");
1114     }
1115 
1116     tiling.u.legacy.microtile = tex->tex.microtile;
1117     tiling.u.legacy.macrotile = tex->tex.macrotile[0];
1118     tiling.u.legacy.stride = tex->tex.stride_in_bytes[0];
1119     rws->buffer_set_metadata(rws, tex->buf, &tiling, NULL);
1120 
1121     return tex;
1122 
1123 fail:
1124     FREE(tex);
1125     if (buffer)
1126         pb_reference(&buffer, NULL);
1127     return NULL;
1128 }
1129 
1130 /* Create a new texture. */
r300_texture_create(struct pipe_screen * screen,const struct pipe_resource * base)1131 struct pipe_resource *r300_texture_create(struct pipe_screen *screen,
1132                                           const struct pipe_resource *base)
1133 {
1134     struct r300_screen *rscreen = r300_screen(screen);
1135     enum radeon_bo_layout microtile, macrotile;
1136 
1137     if ((base->flags & R300_RESOURCE_FLAG_TRANSFER) ||
1138         (base->bind & (PIPE_BIND_SCANOUT | PIPE_BIND_LINEAR))) {
1139         microtile = RADEON_LAYOUT_LINEAR;
1140         macrotile = RADEON_LAYOUT_LINEAR;
1141     } else {
1142         /* This will make the texture_create_function select the layout. */
1143         microtile = RADEON_LAYOUT_UNKNOWN;
1144         macrotile = RADEON_LAYOUT_UNKNOWN;
1145     }
1146 
1147     return (struct pipe_resource*)
1148            r300_texture_create_object(rscreen, base, microtile, macrotile,
1149                                       0, NULL);
1150 }
1151 
r300_texture_from_handle(struct pipe_screen * screen,const struct pipe_resource * base,struct winsys_handle * whandle,unsigned usage)1152 struct pipe_resource *r300_texture_from_handle(struct pipe_screen *screen,
1153                                                const struct pipe_resource *base,
1154                                                struct winsys_handle *whandle,
1155                                                unsigned usage)
1156 {
1157     struct r300_screen *rscreen = r300_screen(screen);
1158     struct radeon_winsys *rws = rscreen->rws;
1159     struct pb_buffer *buffer;
1160     struct radeon_bo_metadata tiling = {};
1161 
1162     /* Support only 2D textures without mipmaps */
1163     if ((base->target != PIPE_TEXTURE_2D &&
1164           base->target != PIPE_TEXTURE_RECT) ||
1165         base->depth0 != 1 ||
1166         base->last_level != 0) {
1167         return NULL;
1168     }
1169 
1170     buffer = rws->buffer_from_handle(rws, whandle, 0);
1171     if (!buffer)
1172         return NULL;
1173 
1174     rws->buffer_get_metadata(rws, buffer, &tiling, NULL);
1175 
1176     /* Enforce a microtiled zbuffer. */
1177     if (util_format_is_depth_or_stencil(base->format) &&
1178         tiling.u.legacy.microtile == RADEON_LAYOUT_LINEAR) {
1179         switch (util_format_get_blocksize(base->format)) {
1180             case 4:
1181                 tiling.u.legacy.microtile = RADEON_LAYOUT_TILED;
1182                 break;
1183 
1184             case 2:
1185                 tiling.u.legacy.microtile = RADEON_LAYOUT_SQUARETILED;
1186                 break;
1187         }
1188     }
1189 
1190     return (struct pipe_resource*)
1191            r300_texture_create_object(rscreen, base, tiling.u.legacy.microtile, tiling.u.legacy.macrotile,
1192                                       whandle->stride, buffer);
1193 }
1194 
r300_create_surface_custom(struct pipe_context * ctx,struct pipe_resource * texture,const struct pipe_surface * surf_tmpl,unsigned width0_override,unsigned height0_override)1195 struct pipe_surface* r300_create_surface_custom(struct pipe_context * ctx,
1196                                          struct pipe_resource* texture,
1197                                          const struct pipe_surface *surf_tmpl,
1198                                          unsigned width0_override,
1199 					 unsigned height0_override)
1200 {
1201     struct r300_resource* tex = r300_resource(texture);
1202     struct r300_surface* surface = CALLOC_STRUCT(r300_surface);
1203     unsigned level = surf_tmpl->u.tex.level;
1204 
1205     assert(surf_tmpl->u.tex.first_layer == surf_tmpl->u.tex.last_layer);
1206 
1207     if (surface) {
1208         uint32_t offset, tile_height;
1209 
1210         pipe_reference_init(&surface->base.reference, 1);
1211         pipe_resource_reference(&surface->base.texture, texture);
1212         surface->base.context = ctx;
1213         surface->base.format = surf_tmpl->format;
1214         surface->base.width = u_minify(width0_override, level);
1215         surface->base.height = u_minify(height0_override, level);
1216         surface->base.u.tex.level = level;
1217         surface->base.u.tex.first_layer = surf_tmpl->u.tex.first_layer;
1218         surface->base.u.tex.last_layer = surf_tmpl->u.tex.last_layer;
1219 
1220         surface->buf = tex->buf;
1221 
1222         /* Prefer VRAM if there are multiple domains to choose from. */
1223         surface->domain = tex->domain;
1224         if (surface->domain & RADEON_DOMAIN_VRAM)
1225             surface->domain &= ~RADEON_DOMAIN_GTT;
1226 
1227         surface->offset = r300_texture_get_offset(tex, level,
1228                                                   surf_tmpl->u.tex.first_layer);
1229         r300_texture_setup_fb_state(surface);
1230 
1231         /* Parameters for the CBZB clear. */
1232         surface->cbzb_allowed = tex->tex.cbzb_allowed[level];
1233         surface->cbzb_width = align(surface->base.width, 64);
1234 
1235         /* Height must be aligned to the size of a tile. */
1236         tile_height = r300_get_pixel_alignment(surface->base.format,
1237                                                tex->b.nr_samples,
1238                                                tex->tex.microtile,
1239                                                tex->tex.macrotile[level],
1240                                                DIM_HEIGHT, 0);
1241 
1242         surface->cbzb_height = align((surface->base.height + 1) / 2,
1243                                      tile_height);
1244 
1245         /* Offset must be aligned to 2K and must point at the beginning
1246          * of a scanline. */
1247         offset = surface->offset +
1248                  tex->tex.stride_in_bytes[level] * surface->cbzb_height;
1249         surface->cbzb_midpoint_offset = offset & ~2047;
1250 
1251         surface->cbzb_pitch = surface->pitch & 0x1ffffc;
1252 
1253         if (util_format_get_blocksizebits(surface->base.format) == 32)
1254             surface->cbzb_format = R300_DEPTHFORMAT_24BIT_INT_Z_8BIT_STENCIL;
1255         else
1256             surface->cbzb_format = R300_DEPTHFORMAT_16BIT_INT_Z;
1257 
1258         DBG(r300_context(ctx), DBG_CBZB,
1259             "CBZB Allowed: %s, Dim: %ix%i, Misalignment: %i, Micro: %s, Macro: %s\n",
1260             surface->cbzb_allowed ? "YES" : " NO",
1261             surface->cbzb_width, surface->cbzb_height,
1262             offset & 2047,
1263             tex->tex.microtile ? "YES" : " NO",
1264             tex->tex.macrotile[level] ? "YES" : " NO");
1265     }
1266 
1267     return &surface->base;
1268 }
1269 
r300_create_surface(struct pipe_context * ctx,struct pipe_resource * texture,const struct pipe_surface * surf_tmpl)1270 struct pipe_surface* r300_create_surface(struct pipe_context * ctx,
1271                                          struct pipe_resource* texture,
1272                                          const struct pipe_surface *surf_tmpl)
1273 {
1274     return r300_create_surface_custom(ctx, texture, surf_tmpl,
1275                                       texture->width0,
1276                                       texture->height0);
1277 }
1278 
r300_surface_destroy(struct pipe_context * ctx,struct pipe_surface * s)1279 void r300_surface_destroy(struct pipe_context *ctx, struct pipe_surface* s)
1280 {
1281     pipe_resource_reference(&s->texture, NULL);
1282     FREE(s);
1283 }
1284