u_tile.c revision a441feb757b1be4845ba378f0207dcdc5cc1a407
1/**************************************************************************
2 *
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28/**
29 * RGBA/float tile get/put functions.
30 * Usable both by drivers and state trackers.
31 */
32
33
34#include "pipe/p_defines.h"
35#include "util/u_inlines.h"
36
37#include "util/u_format.h"
38#include "util/u_math.h"
39#include "util/u_memory.h"
40#include "util/u_rect.h"
41#include "util/u_tile.h"
42
43
44/**
45 * Move raw block of pixels from transfer object to user memory.
46 */
47void
48pipe_get_tile_raw(struct pipe_context *pipe,
49                  struct pipe_transfer *pt,
50                  uint x, uint y, uint w, uint h,
51                  void *dst, int dst_stride)
52{
53   const void *src;
54
55   if (dst_stride == 0)
56      dst_stride = util_format_get_stride(pt->resource->format, w);
57
58   if (u_clip_tile(x, y, &w, &h, &pt->box))
59      return;
60
61   src = pipe->transfer_map(pipe, pt);
62   assert(src);
63   if(!src)
64      return;
65
66   util_copy_rect(dst, pt->resource->format, dst_stride, 0, 0, w, h, src, pt->stride, x, y);
67
68   pipe->transfer_unmap(pipe, pt);
69}
70
71
72/**
73 * Move raw block of pixels from user memory to transfer object.
74 */
75void
76pipe_put_tile_raw(struct pipe_context *pipe,
77                  struct pipe_transfer *pt,
78                  uint x, uint y, uint w, uint h,
79                  const void *src, int src_stride)
80{
81   void *dst;
82   enum pipe_format format = pt->resource->format;
83
84   if (src_stride == 0)
85      src_stride = util_format_get_stride(format, w);
86
87   if (u_clip_tile(x, y, &w, &h, &pt->box))
88      return;
89
90   dst = pipe->transfer_map(pipe, pt);
91   assert(dst);
92   if(!dst)
93      return;
94
95   util_copy_rect(dst, format, pt->stride, x, y, w, h, src, src_stride, 0, 0);
96
97   pipe->transfer_unmap(pipe, pt);
98}
99
100
101
102
103/** Convert short in [-32768,32767] to GLfloat in [-1.0,1.0] */
104#define SHORT_TO_FLOAT(S)   ((2.0F * (S) + 1.0F) * (1.0F/65535.0F))
105
106#define UNCLAMPED_FLOAT_TO_SHORT(us, f)  \
107   us = ( (short) ( CLAMP((f), -1.0, 1.0) * 32767.0F) )
108
109
110
111/*** PIPE_FORMAT_Z16_UNORM ***/
112
113/**
114 * Return each Z value as four floats in [0,1].
115 */
116static void
117z16_get_tile_rgba(const ushort *src,
118                  unsigned w, unsigned h,
119                  float *p,
120                  unsigned dst_stride)
121{
122   const float scale = 1.0f / 65535.0f;
123   unsigned i, j;
124
125   for (i = 0; i < h; i++) {
126      float *pRow = p;
127      for (j = 0; j < w; j++, pRow += 4) {
128         pRow[0] =
129         pRow[1] =
130         pRow[2] =
131         pRow[3] = *src++ * scale;
132      }
133      p += dst_stride;
134   }
135}
136
137
138
139
140/*** PIPE_FORMAT_Z32_UNORM ***/
141
142/**
143 * Return each Z value as four floats in [0,1].
144 */
145static void
146z32_get_tile_rgba(const unsigned *src,
147                  unsigned w, unsigned h,
148                  float *p,
149                  unsigned dst_stride)
150{
151   const double scale = 1.0 / (double) 0xffffffff;
152   unsigned i, j;
153
154   for (i = 0; i < h; i++) {
155      float *pRow = p;
156      for (j = 0; j < w; j++, pRow += 4) {
157         pRow[0] =
158         pRow[1] =
159         pRow[2] =
160         pRow[3] = (float) (*src++ * scale);
161      }
162      p += dst_stride;
163   }
164}
165
166
167/*** PIPE_FORMAT_Z24_UNORM_S8_USCALED ***/
168
169/**
170 * Return Z component as four float in [0,1].  Stencil part ignored.
171 */
172static void
173s8z24_get_tile_rgba(const unsigned *src,
174                    unsigned w, unsigned h,
175                    float *p,
176                    unsigned dst_stride)
177{
178   const double scale = 1.0 / ((1 << 24) - 1);
179   unsigned i, j;
180
181   for (i = 0; i < h; i++) {
182      float *pRow = p;
183      for (j = 0; j < w; j++, pRow += 4) {
184         pRow[0] =
185         pRow[1] =
186         pRow[2] =
187         pRow[3] = (float) (scale * (*src++ & 0xffffff));
188      }
189      p += dst_stride;
190   }
191}
192
193
194/*** PIPE_FORMAT_S8_USCALED_Z24_UNORM ***/
195
196/**
197 * Return Z component as four float in [0,1].  Stencil part ignored.
198 */
199static void
200z24s8_get_tile_rgba(const unsigned *src,
201                    unsigned w, unsigned h,
202                    float *p,
203                    unsigned dst_stride)
204{
205   const double scale = 1.0 / ((1 << 24) - 1);
206   unsigned i, j;
207
208   for (i = 0; i < h; i++) {
209      float *pRow = p;
210      for (j = 0; j < w; j++, pRow += 4) {
211         pRow[0] =
212         pRow[1] =
213         pRow[2] =
214         pRow[3] = (float) (scale * (*src++ >> 8));
215      }
216      p += dst_stride;
217   }
218}
219
220/*** PIPE_FORMAT_S8X24_USCALED ***/
221
222/**
223 * Return S component as four uint32_t in [0..255].  Z part ignored.
224 */
225static void
226s8x24_get_tile_rgba(const unsigned *src,
227                    unsigned w, unsigned h,
228                    float *p,
229                    unsigned dst_stride)
230{
231   unsigned i, j;
232
233   for (i = 0; i < h; i++) {
234      float *pRow = p;
235
236      for (j = 0; j < w; j++, pRow += 4) {
237         pRow[0] =
238         pRow[1] =
239         pRow[2] =
240         pRow[3] = (float)((*src++ >> 24) & 0xff);
241      }
242
243      p += dst_stride;
244   }
245}
246
247/*** PIPE_FORMAT_X24S8_USCALED ***/
248
249/**
250 * Return S component as four uint32_t in [0..255].  Z part ignored.
251 */
252static void
253x24s8_get_tile_rgba(const unsigned *src,
254                    unsigned w, unsigned h,
255                    float *p,
256                    unsigned dst_stride)
257{
258   unsigned i, j;
259
260   for (i = 0; i < h; i++) {
261      float *pRow = p;
262      for (j = 0; j < w; j++, pRow += 4) {
263         pRow[0] =
264         pRow[1] =
265         pRow[2] =
266         pRow[3] = (float)(*src++ & 0xff);
267      }
268      p += dst_stride;
269   }
270}
271
272
273/**
274 * Return S component as four uint32_t in [0..255].  Z part ignored.
275 */
276static void
277s8_get_tile_rgba(const unsigned char *src,
278		 unsigned w, unsigned h,
279		 float *p,
280		 unsigned dst_stride)
281{
282   unsigned i, j;
283
284   for (i = 0; i < h; i++) {
285      float *pRow = p;
286      for (j = 0; j < w; j++, pRow += 4) {
287         pRow[0] =
288         pRow[1] =
289         pRow[2] =
290         pRow[3] = (float)(*src++ & 0xff);
291      }
292      p += dst_stride;
293   }
294}
295
296/*** PIPE_FORMAT_Z32_FLOAT ***/
297
298/**
299 * Return each Z value as four floats in [0,1].
300 */
301static void
302z32f_get_tile_rgba(const float *src,
303                   unsigned w, unsigned h,
304                   float *p,
305                   unsigned dst_stride)
306{
307   unsigned i, j;
308
309   for (i = 0; i < h; i++) {
310      float *pRow = p;
311      for (j = 0; j < w; j++, pRow += 4) {
312         pRow[0] =
313         pRow[1] =
314         pRow[2] =
315         pRow[3] = *src++;
316      }
317      p += dst_stride;
318   }
319}
320
321/*** PIPE_FORMAT_Z32_FLOAT_S8X24_USCALED ***/
322
323/**
324 * Return each Z value as four floats in [0,1].
325 */
326static void
327z32f_x24s8_get_tile_rgba(const float *src,
328                         unsigned w, unsigned h,
329                         float *p,
330                         unsigned dst_stride)
331{
332   unsigned i, j;
333
334   for (i = 0; i < h; i++) {
335      float *pRow = p;
336      for (j = 0; j < w; j++, pRow += 4) {
337         pRow[0] =
338         pRow[1] =
339         pRow[2] =
340         pRow[3] = *src;
341         src += 2;
342      }
343      p += dst_stride;
344   }
345}
346
347
348void
349pipe_tile_raw_to_rgba(enum pipe_format format,
350                      void *src,
351                      uint w, uint h,
352                      float *dst, unsigned dst_stride)
353{
354   switch (format) {
355   case PIPE_FORMAT_Z16_UNORM:
356      z16_get_tile_rgba((ushort *) src, w, h, dst, dst_stride);
357      break;
358   case PIPE_FORMAT_Z32_UNORM:
359      z32_get_tile_rgba((unsigned *) src, w, h, dst, dst_stride);
360      break;
361   case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
362   case PIPE_FORMAT_Z24X8_UNORM:
363      s8z24_get_tile_rgba((unsigned *) src, w, h, dst, dst_stride);
364      break;
365   case PIPE_FORMAT_S8_USCALED:
366      s8_get_tile_rgba((unsigned char *) src, w, h, dst, dst_stride);
367      break;
368   case PIPE_FORMAT_X24S8_USCALED:
369      s8x24_get_tile_rgba((unsigned *) src, w, h, dst, dst_stride);
370      break;
371   case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
372   case PIPE_FORMAT_X8Z24_UNORM:
373      z24s8_get_tile_rgba((unsigned *) src, w, h, dst, dst_stride);
374      break;
375   case PIPE_FORMAT_S8X24_USCALED:
376      x24s8_get_tile_rgba((unsigned *) src, w, h, dst, dst_stride);
377      break;
378   case PIPE_FORMAT_Z32_FLOAT:
379      z32f_get_tile_rgba((float *) src, w, h, dst, dst_stride);
380      break;
381   case PIPE_FORMAT_Z32_FLOAT_S8X24_USCALED:
382      z32f_x24s8_get_tile_rgba((float *) src, w, h, dst, dst_stride);
383      break;
384   default:
385      util_format_read_4f(format,
386                          dst, dst_stride * sizeof(float),
387                          src, util_format_get_stride(format, w),
388                          0, 0, w, h);
389   }
390}
391
392void
393pipe_tile_raw_to_unsigned(enum pipe_format format,
394                          void *src,
395                          uint w, uint h,
396                          unsigned *dst, unsigned dst_stride)
397{
398  util_format_read_4ui(format,
399                       dst, dst_stride * sizeof(float),
400                       src, util_format_get_stride(format, w),
401                       0, 0, w, h);
402}
403
404void
405pipe_tile_raw_to_signed(enum pipe_format format,
406                          void *src,
407                          uint w, uint h,
408                          int *dst, unsigned dst_stride)
409{
410  util_format_read_4i(format,
411                      dst, dst_stride * sizeof(float),
412                      src, util_format_get_stride(format, w),
413                      0, 0, w, h);
414}
415
416void
417pipe_get_tile_rgba(struct pipe_context *pipe,
418                   struct pipe_transfer *pt,
419                   uint x, uint y, uint w, uint h,
420                   float *p)
421{
422   pipe_get_tile_rgba_format(pipe, pt, x, y, w, h, pt->resource->format, p);
423}
424
425
426void
427pipe_get_tile_rgba_format(struct pipe_context *pipe,
428                          struct pipe_transfer *pt,
429                          uint x, uint y, uint w, uint h,
430                          enum pipe_format format,
431                          float *p)
432{
433   unsigned dst_stride = w * 4;
434   void *packed;
435
436   if (u_clip_tile(x, y, &w, &h, &pt->box)) {
437      return;
438   }
439
440   packed = MALLOC(util_format_get_nblocks(format, w, h) * util_format_get_blocksize(format));
441   if (!packed) {
442      return;
443   }
444
445   if (format == PIPE_FORMAT_UYVY || format == PIPE_FORMAT_YUYV) {
446      assert((x & 1) == 0);
447   }
448
449   pipe_get_tile_raw(pipe, pt, x, y, w, h, packed, 0);
450
451   pipe_tile_raw_to_rgba(format, packed, w, h, p, dst_stride);
452
453   FREE(packed);
454}
455
456
457void
458pipe_put_tile_rgba(struct pipe_context *pipe,
459                   struct pipe_transfer *pt,
460                   uint x, uint y, uint w, uint h,
461                   const float *p)
462{
463   pipe_put_tile_rgba_format(pipe, pt, x, y, w, h, pt->resource->format, p);
464}
465
466
467void
468pipe_put_tile_rgba_format(struct pipe_context *pipe,
469                          struct pipe_transfer *pt,
470                          uint x, uint y, uint w, uint h,
471                          enum pipe_format format,
472                          const float *p)
473{
474   unsigned src_stride = w * 4;
475   void *packed;
476
477   if (u_clip_tile(x, y, &w, &h, &pt->box))
478      return;
479
480   packed = MALLOC(util_format_get_nblocks(format, w, h) * util_format_get_blocksize(format));
481
482   if (!packed)
483      return;
484
485   switch (format) {
486   case PIPE_FORMAT_Z16_UNORM:
487      /*z16_put_tile_rgba((ushort *) packed, w, h, p, src_stride);*/
488      break;
489   case PIPE_FORMAT_Z32_UNORM:
490      /*z32_put_tile_rgba((unsigned *) packed, w, h, p, src_stride);*/
491      break;
492   case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
493   case PIPE_FORMAT_Z24X8_UNORM:
494      /*s8z24_put_tile_rgba((unsigned *) packed, w, h, p, src_stride);*/
495      break;
496   case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
497   case PIPE_FORMAT_X8Z24_UNORM:
498      /*z24s8_put_tile_rgba((unsigned *) packed, w, h, p, src_stride);*/
499      break;
500   case PIPE_FORMAT_Z32_FLOAT:
501      /*z32f_put_tile_rgba((unsigned *) packed, w, h, p, src_stride);*/
502      break;
503   case PIPE_FORMAT_Z32_FLOAT_S8X24_USCALED:
504      /*z32f_s8x24_put_tile_rgba((unsigned *) packed, w, h, p, src_stride);*/
505      break;
506   default:
507      util_format_write_4f(format,
508                           p, src_stride * sizeof(float),
509                           packed, util_format_get_stride(format, w),
510                           0, 0, w, h);
511   }
512
513   pipe_put_tile_raw(pipe, pt, x, y, w, h, packed, 0);
514
515   FREE(packed);
516}
517
518void
519pipe_put_tile_i_format(struct pipe_context *pipe,
520                       struct pipe_transfer *pt,
521                       uint x, uint y, uint w, uint h,
522                       enum pipe_format format,
523                       const int *p)
524{
525   unsigned src_stride = w * 4;
526   void *packed;
527
528   if (u_clip_tile(x, y, &w, &h, &pt->box))
529      return;
530
531   packed = MALLOC(util_format_get_nblocks(format, w, h) * util_format_get_blocksize(format));
532
533   if (!packed)
534      return;
535
536   util_format_write_4i(format,
537                        p, src_stride * sizeof(float),
538                        packed, util_format_get_stride(format, w),
539                        0, 0, w, h);
540
541   pipe_put_tile_raw(pipe, pt, x, y, w, h, packed, 0);
542
543   FREE(packed);
544}
545
546void
547pipe_put_tile_ui_format(struct pipe_context *pipe,
548                        struct pipe_transfer *pt,
549                        uint x, uint y, uint w, uint h,
550                        enum pipe_format format,
551                        const unsigned int *p)
552{
553   unsigned src_stride = w * 4;
554   void *packed;
555
556   if (u_clip_tile(x, y, &w, &h, &pt->box))
557      return;
558
559   packed = MALLOC(util_format_get_nblocks(format, w, h) * util_format_get_blocksize(format));
560
561   if (!packed)
562      return;
563
564   util_format_write_4ui(format,
565                         p, src_stride * sizeof(float),
566                         packed, util_format_get_stride(format, w),
567                         0, 0, w, h);
568
569   pipe_put_tile_raw(pipe, pt, x, y, w, h, packed, 0);
570
571   FREE(packed);
572}
573
574/**
575 * Get a block of Z values, converted to 32-bit range.
576 */
577void
578pipe_get_tile_z(struct pipe_context *pipe,
579                struct pipe_transfer *pt,
580                uint x, uint y, uint w, uint h,
581                uint *z)
582{
583   const uint dstStride = w;
584   ubyte *map;
585   uint *pDest = z;
586   uint i, j;
587   enum pipe_format format = pt->resource->format;
588
589   if (u_clip_tile(x, y, &w, &h, &pt->box))
590      return;
591
592   map = (ubyte *)pipe->transfer_map(pipe, pt);
593   if (!map) {
594      assert(0);
595      return;
596   }
597
598   switch (format) {
599   case PIPE_FORMAT_Z32_UNORM:
600      {
601         const uint *ptrc
602            = (const uint *)(map  + y * pt->stride + x*4);
603         for (i = 0; i < h; i++) {
604            memcpy(pDest, ptrc, 4 * w);
605            pDest += dstStride;
606            ptrc += pt->stride/4;
607         }
608      }
609      break;
610   case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
611   case PIPE_FORMAT_Z24X8_UNORM:
612      {
613         const uint *ptrc
614            = (const uint *)(map + y * pt->stride + x*4);
615         for (i = 0; i < h; i++) {
616            for (j = 0; j < w; j++) {
617               /* convert 24-bit Z to 32-bit Z */
618               pDest[j] = (ptrc[j] << 8) | ((ptrc[j] >> 16) & 0xff);
619            }
620            pDest += dstStride;
621            ptrc += pt->stride/4;
622         }
623      }
624      break;
625   case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
626   case PIPE_FORMAT_X8Z24_UNORM:
627      {
628         const uint *ptrc
629            = (const uint *)(map + y * pt->stride + x*4);
630         for (i = 0; i < h; i++) {
631            for (j = 0; j < w; j++) {
632               /* convert 24-bit Z to 32-bit Z */
633               pDest[j] = (ptrc[j] & 0xffffff00) | ((ptrc[j] >> 24) & 0xff);
634            }
635            pDest += dstStride;
636            ptrc += pt->stride/4;
637         }
638      }
639      break;
640   case PIPE_FORMAT_Z16_UNORM:
641      {
642         const ushort *ptrc
643            = (const ushort *)(map + y * pt->stride + x*2);
644         for (i = 0; i < h; i++) {
645            for (j = 0; j < w; j++) {
646               /* convert 16-bit Z to 32-bit Z */
647               pDest[j] = (ptrc[j] << 16) | ptrc[j];
648            }
649            pDest += dstStride;
650            ptrc += pt->stride/2;
651         }
652      }
653      break;
654   default:
655      assert(0);
656   }
657
658   pipe->transfer_unmap(pipe, pt);
659}
660
661
662void
663pipe_put_tile_z(struct pipe_context *pipe,
664                struct pipe_transfer *pt,
665                uint x, uint y, uint w, uint h,
666                const uint *zSrc)
667{
668   const uint srcStride = w;
669   const uint *ptrc = zSrc;
670   ubyte *map;
671   uint i, j;
672   enum pipe_format format = pt->resource->format;
673
674   if (u_clip_tile(x, y, &w, &h, &pt->box))
675      return;
676
677   map = (ubyte *)pipe->transfer_map(pipe, pt);
678   if (!map) {
679      assert(0);
680      return;
681   }
682
683   switch (format) {
684   case PIPE_FORMAT_Z32_UNORM:
685      {
686         uint *pDest = (uint *) (map + y * pt->stride + x*4);
687         for (i = 0; i < h; i++) {
688            memcpy(pDest, ptrc, 4 * w);
689            pDest += pt->stride/4;
690            ptrc += srcStride;
691         }
692      }
693      break;
694   case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
695      {
696         uint *pDest = (uint *) (map + y * pt->stride + x*4);
697         /*assert((pt->usage & PIPE_TRANSFER_READ_WRITE) == PIPE_TRANSFER_READ_WRITE);*/
698         for (i = 0; i < h; i++) {
699            for (j = 0; j < w; j++) {
700               /* convert 32-bit Z to 24-bit Z, preserve stencil */
701               pDest[j] = (pDest[j] & 0xff000000) | ptrc[j] >> 8;
702            }
703            pDest += pt->stride/4;
704            ptrc += srcStride;
705         }
706      }
707      break;
708   case PIPE_FORMAT_Z24X8_UNORM:
709      {
710         uint *pDest = (uint *) (map + y * pt->stride + x*4);
711         for (i = 0; i < h; i++) {
712            for (j = 0; j < w; j++) {
713               /* convert 32-bit Z to 24-bit Z (0 stencil) */
714               pDest[j] = ptrc[j] >> 8;
715            }
716            pDest += pt->stride/4;
717            ptrc += srcStride;
718         }
719      }
720      break;
721   case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
722      {
723         uint *pDest = (uint *) (map + y * pt->stride + x*4);
724         /*assert((pt->usage & PIPE_TRANSFER_READ_WRITE) == PIPE_TRANSFER_READ_WRITE);*/
725         for (i = 0; i < h; i++) {
726            for (j = 0; j < w; j++) {
727               /* convert 32-bit Z to 24-bit Z, preserve stencil */
728               pDest[j] = (pDest[j] & 0xff) | (ptrc[j] & 0xffffff00);
729            }
730            pDest += pt->stride/4;
731            ptrc += srcStride;
732         }
733      }
734      break;
735   case PIPE_FORMAT_X8Z24_UNORM:
736      {
737         uint *pDest = (uint *) (map + y * pt->stride + x*4);
738         for (i = 0; i < h; i++) {
739            for (j = 0; j < w; j++) {
740               /* convert 32-bit Z to 24-bit Z (0 stencil) */
741               pDest[j] = ptrc[j] & 0xffffff00;
742            }
743            pDest += pt->stride/4;
744            ptrc += srcStride;
745         }
746      }
747      break;
748   case PIPE_FORMAT_Z16_UNORM:
749      {
750         ushort *pDest = (ushort *) (map + y * pt->stride + x*2);
751         for (i = 0; i < h; i++) {
752            for (j = 0; j < w; j++) {
753               /* convert 32-bit Z to 16-bit Z */
754               pDest[j] = ptrc[j] >> 16;
755            }
756            pDest += pt->stride/2;
757            ptrc += srcStride;
758         }
759      }
760      break;
761   default:
762      assert(0);
763   }
764
765   pipe->transfer_unmap(pipe, pt);
766}
767
768
769void
770pipe_get_tile_ui_format(struct pipe_context *pipe,
771                        struct pipe_transfer *pt,
772                        uint x, uint y, uint w, uint h,
773                        enum pipe_format format,
774                        unsigned int *p)
775{
776   unsigned dst_stride = w * 4;
777   void *packed;
778
779   if (u_clip_tile(x, y, &w, &h, &pt->box)) {
780      return;
781   }
782
783   packed = MALLOC(util_format_get_nblocks(format, w, h) * util_format_get_blocksize(format));
784   if (!packed) {
785      return;
786   }
787
788   if (format == PIPE_FORMAT_UYVY || format == PIPE_FORMAT_YUYV) {
789      assert((x & 1) == 0);
790   }
791
792   pipe_get_tile_raw(pipe, pt, x, y, w, h, packed, 0);
793
794   pipe_tile_raw_to_unsigned(format, packed, w, h, p, dst_stride);
795
796   FREE(packed);
797}
798
799
800void
801pipe_get_tile_i_format(struct pipe_context *pipe,
802                       struct pipe_transfer *pt,
803                       uint x, uint y, uint w, uint h,
804                       enum pipe_format format,
805                       int *p)
806{
807   unsigned dst_stride = w * 4;
808   void *packed;
809
810   if (u_clip_tile(x, y, &w, &h, &pt->box)) {
811      return;
812   }
813
814   packed = MALLOC(util_format_get_nblocks(format, w, h) * util_format_get_blocksize(format));
815   if (!packed) {
816      return;
817   }
818
819   if (format == PIPE_FORMAT_UYVY || format == PIPE_FORMAT_YUYV) {
820      assert((x & 1) == 0);
821   }
822
823   pipe_get_tile_raw(pipe, pt, x, y, w, h, packed, 0);
824
825   pipe_tile_raw_to_signed(format, packed, w, h, p, dst_stride);
826
827   FREE(packed);
828}
829