u_tile.c revision e75844b4e09cbbfca159a4e4709d3ca1249d784d 
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
322void
323pipe_tile_raw_to_rgba(enum pipe_format format,
324                      void *src,
325                      uint w, uint h,
326                      float *dst, unsigned dst_stride)
327{
328   switch (format) {
329   case PIPE_FORMAT_Z16_UNORM:
330      z16_get_tile_rgba((ushort *) src, w, h, dst, dst_stride);
331      break;
332   case PIPE_FORMAT_Z32_UNORM:
333      z32_get_tile_rgba((unsigned *) src, w, h, dst, dst_stride);
334      break;
335   case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
336   case PIPE_FORMAT_Z24X8_UNORM:
337      s8z24_get_tile_rgba((unsigned *) src, w, h, dst, dst_stride);
338      break;
339   case PIPE_FORMAT_S8_USCALED:
340      s8_get_tile_rgba((unsigned char *) src, w, h, dst, dst_stride);
341      break;
342   case PIPE_FORMAT_X24S8_USCALED:
343      s8x24_get_tile_rgba((unsigned *) src, w, h, dst, dst_stride);
344      break;
345   case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
346   case PIPE_FORMAT_X8Z24_UNORM:
347      z24s8_get_tile_rgba((unsigned *) src, w, h, dst, dst_stride);
348      break;
349   case PIPE_FORMAT_S8X24_USCALED:
350      x24s8_get_tile_rgba((unsigned *) src, w, h, dst, dst_stride);
351      break;
352   case PIPE_FORMAT_Z32_FLOAT:
353      z32f_get_tile_rgba((float *) src, w, h, dst, dst_stride);
354      break;
355   default:
356      util_format_read_4f(format,
357                          dst, dst_stride * sizeof(float),
358                          src, util_format_get_stride(format, w),
359                          0, 0, w, h);
360   }
361}
362
363
364void
365pipe_get_tile_rgba(struct pipe_context *pipe,
366                   struct pipe_transfer *pt,
367                   uint x, uint y, uint w, uint h,
368                   float *p)
369{
370   pipe_get_tile_rgba_format(pipe, pt, x, y, w, h, pt->resource->format, p);
371}
372
373
374void
375pipe_get_tile_rgba_format(struct pipe_context *pipe,
376                          struct pipe_transfer *pt,
377                          uint x, uint y, uint w, uint h,
378                          enum pipe_format format,
379                          float *p)
380{
381   unsigned dst_stride = w * 4;
382   void *packed;
383
384   if (u_clip_tile(x, y, &w, &h, &pt->box)) {
385      return;
386   }
387
388   packed = MALLOC(util_format_get_nblocks(format, w, h) * util_format_get_blocksize(format));
389   if (!packed) {
390      return;
391   }
392
393   if (format == PIPE_FORMAT_UYVY || format == PIPE_FORMAT_YUYV) {
394      assert((x & 1) == 0);
395   }
396
397   pipe_get_tile_raw(pipe, pt, x, y, w, h, packed, 0);
398
399   pipe_tile_raw_to_rgba(format, packed, w, h, p, dst_stride);
400
401   FREE(packed);
402}
403
404
405void
406pipe_put_tile_rgba(struct pipe_context *pipe,
407                   struct pipe_transfer *pt,
408                   uint x, uint y, uint w, uint h,
409                   const float *p)
410{
411   pipe_put_tile_rgba_format(pipe, pt, x, y, w, h, pt->resource->format, p);
412}
413
414
415void
416pipe_put_tile_rgba_format(struct pipe_context *pipe,
417                          struct pipe_transfer *pt,
418                          uint x, uint y, uint w, uint h,
419                          enum pipe_format format,
420                          const float *p)
421{
422   unsigned src_stride = w * 4;
423   void *packed;
424
425   if (u_clip_tile(x, y, &w, &h, &pt->box))
426      return;
427
428   packed = MALLOC(util_format_get_nblocks(format, w, h) * util_format_get_blocksize(format));
429
430   if (!packed)
431      return;
432
433   switch (format) {
434   case PIPE_FORMAT_Z16_UNORM:
435      /*z16_put_tile_rgba((ushort *) packed, w, h, p, src_stride);*/
436      break;
437   case PIPE_FORMAT_Z32_UNORM:
438      /*z32_put_tile_rgba((unsigned *) packed, w, h, p, src_stride);*/
439      break;
440   case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
441   case PIPE_FORMAT_Z24X8_UNORM:
442      /*s8z24_put_tile_rgba((unsigned *) packed, w, h, p, src_stride);*/
443      break;
444   case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
445   case PIPE_FORMAT_X8Z24_UNORM:
446      /*z24s8_put_tile_rgba((unsigned *) packed, w, h, p, src_stride);*/
447      break;
448   default:
449      util_format_write_4f(format,
450                           p, src_stride * sizeof(float),
451                           packed, util_format_get_stride(format, w),
452                           0, 0, w, h);
453   }
454
455   pipe_put_tile_raw(pipe, pt, x, y, w, h, packed, 0);
456
457   FREE(packed);
458}
459
460
461/**
462 * Get a block of Z values, converted to 32-bit range.
463 */
464void
465pipe_get_tile_z(struct pipe_context *pipe,
466                struct pipe_transfer *pt,
467                uint x, uint y, uint w, uint h,
468                uint *z)
469{
470   const uint dstStride = w;
471   ubyte *map;
472   uint *pDest = z;
473   uint i, j;
474   enum pipe_format format = pt->resource->format;
475
476   if (u_clip_tile(x, y, &w, &h, &pt->box))
477      return;
478
479   map = (ubyte *)pipe->transfer_map(pipe, pt);
480   if (!map) {
481      assert(0);
482      return;
483   }
484
485   switch (format) {
486   case PIPE_FORMAT_Z32_UNORM:
487      {
488         const uint *ptrc
489            = (const uint *)(map  + y * pt->stride + x*4);
490         for (i = 0; i < h; i++) {
491            memcpy(pDest, ptrc, 4 * w);
492            pDest += dstStride;
493            ptrc += pt->stride/4;
494         }
495      }
496      break;
497   case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
498   case PIPE_FORMAT_Z24X8_UNORM:
499      {
500         const uint *ptrc
501            = (const uint *)(map + y * pt->stride + x*4);
502         for (i = 0; i < h; i++) {
503            for (j = 0; j < w; j++) {
504               /* convert 24-bit Z to 32-bit Z */
505               pDest[j] = (ptrc[j] << 8) | ((ptrc[j] >> 16) & 0xff);
506            }
507            pDest += dstStride;
508            ptrc += pt->stride/4;
509         }
510      }
511      break;
512   case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
513   case PIPE_FORMAT_X8Z24_UNORM:
514      {
515         const uint *ptrc
516            = (const uint *)(map + y * pt->stride + x*4);
517         for (i = 0; i < h; i++) {
518            for (j = 0; j < w; j++) {
519               /* convert 24-bit Z to 32-bit Z */
520               pDest[j] = (ptrc[j] & 0xffffff00) | ((ptrc[j] >> 24) & 0xff);
521            }
522            pDest += dstStride;
523            ptrc += pt->stride/4;
524         }
525      }
526      break;
527   case PIPE_FORMAT_Z16_UNORM:
528      {
529         const ushort *ptrc
530            = (const ushort *)(map + y * pt->stride + x*2);
531         for (i = 0; i < h; i++) {
532            for (j = 0; j < w; j++) {
533               /* convert 16-bit Z to 32-bit Z */
534               pDest[j] = (ptrc[j] << 16) | ptrc[j];
535            }
536            pDest += dstStride;
537            ptrc += pt->stride/2;
538         }
539      }
540      break;
541   default:
542      assert(0);
543   }
544
545   pipe->transfer_unmap(pipe, pt);
546}
547
548
549void
550pipe_put_tile_z(struct pipe_context *pipe,
551                struct pipe_transfer *pt,
552                uint x, uint y, uint w, uint h,
553                const uint *zSrc)
554{
555   const uint srcStride = w;
556   const uint *ptrc = zSrc;
557   ubyte *map;
558   uint i, j;
559   enum pipe_format format = pt->resource->format;
560
561   if (u_clip_tile(x, y, &w, &h, &pt->box))
562      return;
563
564   map = (ubyte *)pipe->transfer_map(pipe, pt);
565   if (!map) {
566      assert(0);
567      return;
568   }
569
570   switch (format) {
571   case PIPE_FORMAT_Z32_UNORM:
572      {
573         uint *pDest = (uint *) (map + y * pt->stride + x*4);
574         for (i = 0; i < h; i++) {
575            memcpy(pDest, ptrc, 4 * w);
576            pDest += pt->stride/4;
577            ptrc += srcStride;
578         }
579      }
580      break;
581   case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
582      {
583         uint *pDest = (uint *) (map + y * pt->stride + x*4);
584         /*assert((pt->usage & PIPE_TRANSFER_READ_WRITE) == PIPE_TRANSFER_READ_WRITE);*/
585         for (i = 0; i < h; i++) {
586            for (j = 0; j < w; j++) {
587               /* convert 32-bit Z to 24-bit Z, preserve stencil */
588               pDest[j] = (pDest[j] & 0xff000000) | ptrc[j] >> 8;
589            }
590            pDest += pt->stride/4;
591            ptrc += srcStride;
592         }
593      }
594      break;
595   case PIPE_FORMAT_Z24X8_UNORM:
596      {
597         uint *pDest = (uint *) (map + y * pt->stride + x*4);
598         for (i = 0; i < h; i++) {
599            for (j = 0; j < w; j++) {
600               /* convert 32-bit Z to 24-bit Z (0 stencil) */
601               pDest[j] = ptrc[j] >> 8;
602            }
603            pDest += pt->stride/4;
604            ptrc += srcStride;
605         }
606      }
607      break;
608   case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
609      {
610         uint *pDest = (uint *) (map + y * pt->stride + x*4);
611         /*assert((pt->usage & PIPE_TRANSFER_READ_WRITE) == PIPE_TRANSFER_READ_WRITE);*/
612         for (i = 0; i < h; i++) {
613            for (j = 0; j < w; j++) {
614               /* convert 32-bit Z to 24-bit Z, preserve stencil */
615               pDest[j] = (pDest[j] & 0xff) | (ptrc[j] & 0xffffff00);
616            }
617            pDest += pt->stride/4;
618            ptrc += srcStride;
619         }
620      }
621      break;
622   case PIPE_FORMAT_X8Z24_UNORM:
623      {
624         uint *pDest = (uint *) (map + y * pt->stride + x*4);
625         for (i = 0; i < h; i++) {
626            for (j = 0; j < w; j++) {
627               /* convert 32-bit Z to 24-bit Z (0 stencil) */
628               pDest[j] = ptrc[j] & 0xffffff00;
629            }
630            pDest += pt->stride/4;
631            ptrc += srcStride;
632         }
633      }
634      break;
635   case PIPE_FORMAT_Z16_UNORM:
636      {
637         ushort *pDest = (ushort *) (map + y * pt->stride + x*2);
638         for (i = 0; i < h; i++) {
639            for (j = 0; j < w; j++) {
640               /* convert 32-bit Z to 16-bit Z */
641               pDest[j] = ptrc[j] >> 16;
642            }
643            pDest += pt->stride/2;
644            ptrc += srcStride;
645         }
646      }
647      break;
648   default:
649      assert(0);
650   }
651
652   pipe->transfer_unmap(pipe, pt);
653}
654
655
656