1 /**************************************************************************
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
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:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
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.
26 **************************************************************************/
29 * RGBA/float tile get/put functions.
30 * Usable both by drivers and state trackers.
34 #include "pipe/p_defines.h"
35 #include "util/u_inlines.h"
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"
45 * Move raw block of pixels from transfer object to user memory.
48 pipe_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
)
56 dst_stride
= util_format_get_stride(pt
->resource
->format
, w
);
58 if (u_clip_tile(x
, y
, &w
, &h
, &pt
->box
))
61 src
= pipe
->transfer_map(pipe
, pt
);
66 util_copy_rect(dst
, pt
->resource
->format
, dst_stride
, 0, 0, w
, h
, src
, pt
->stride
, x
, y
);
68 pipe
->transfer_unmap(pipe
, pt
);
73 * Move raw block of pixels from user memory to transfer object.
76 pipe_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
)
82 enum pipe_format format
= pt
->resource
->format
;
85 src_stride
= util_format_get_stride(format
, w
);
87 if (u_clip_tile(x
, y
, &w
, &h
, &pt
->box
))
90 dst
= pipe
->transfer_map(pipe
, pt
);
95 util_copy_rect(dst
, format
, pt
->stride
, x
, y
, w
, h
, src
, src_stride
, 0, 0);
97 pipe
->transfer_unmap(pipe
, pt
);
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))
106 #define UNCLAMPED_FLOAT_TO_SHORT(us, f) \
107 us = ( (short) ( CLAMP((f), -1.0, 1.0) * 32767.0F) )
111 /*** PIPE_FORMAT_Z16_UNORM ***/
114 * Return each Z value as four floats in [0,1].
117 z16_get_tile_rgba(const ushort
*src
,
118 unsigned w
, unsigned h
,
122 const float scale
= 1.0f
/ 65535.0f
;
125 for (i
= 0; i
< h
; i
++) {
127 for (j
= 0; j
< w
; j
++, pRow
+= 4) {
131 pRow
[3] = *src
++ * scale
;
140 /*** PIPE_FORMAT_Z32_UNORM ***/
143 * Return each Z value as four floats in [0,1].
146 z32_get_tile_rgba(const unsigned *src
,
147 unsigned w
, unsigned h
,
151 const double scale
= 1.0 / (double) 0xffffffff;
154 for (i
= 0; i
< h
; i
++) {
156 for (j
= 0; j
< w
; j
++, pRow
+= 4) {
160 pRow
[3] = (float) (*src
++ * scale
);
167 /*** PIPE_FORMAT_Z24_UNORM_S8_USCALED ***/
170 * Return Z component as four float in [0,1]. Stencil part ignored.
173 s8z24_get_tile_rgba(const unsigned *src
,
174 unsigned w
, unsigned h
,
178 const double scale
= 1.0 / ((1 << 24) - 1);
181 for (i
= 0; i
< h
; i
++) {
183 for (j
= 0; j
< w
; j
++, pRow
+= 4) {
187 pRow
[3] = (float) (scale
* (*src
++ & 0xffffff));
194 /*** PIPE_FORMAT_S8_USCALED_Z24_UNORM ***/
197 * Return Z component as four float in [0,1]. Stencil part ignored.
200 z24s8_get_tile_rgba(const unsigned *src
,
201 unsigned w
, unsigned h
,
205 const double scale
= 1.0 / ((1 << 24) - 1);
208 for (i
= 0; i
< h
; i
++) {
210 for (j
= 0; j
< w
; j
++, pRow
+= 4) {
214 pRow
[3] = (float) (scale
* (*src
++ >> 8));
221 /*** PIPE_FORMAT_Z32_FLOAT ***/
224 * Return each Z value as four floats in [0,1].
227 z32f_get_tile_rgba(const float *src
,
228 unsigned w
, unsigned h
,
234 for (i
= 0; i
< h
; i
++) {
236 for (j
= 0; j
< w
; j
++, pRow
+= 4) {
248 pipe_tile_raw_to_rgba(enum pipe_format format
,
251 float *dst
, unsigned dst_stride
)
254 case PIPE_FORMAT_Z16_UNORM
:
255 z16_get_tile_rgba((ushort
*) src
, w
, h
, dst
, dst_stride
);
257 case PIPE_FORMAT_Z32_UNORM
:
258 z32_get_tile_rgba((unsigned *) src
, w
, h
, dst
, dst_stride
);
260 case PIPE_FORMAT_Z24_UNORM_S8_USCALED
:
261 case PIPE_FORMAT_Z24X8_UNORM
:
262 s8z24_get_tile_rgba((unsigned *) src
, w
, h
, dst
, dst_stride
);
264 case PIPE_FORMAT_S8_USCALED_Z24_UNORM
:
265 case PIPE_FORMAT_X8Z24_UNORM
:
266 z24s8_get_tile_rgba((unsigned *) src
, w
, h
, dst
, dst_stride
);
268 case PIPE_FORMAT_Z32_FLOAT
:
269 z32f_get_tile_rgba((float *) src
, w
, h
, dst
, dst_stride
);
272 util_format_read_4f(format
,
273 dst
, dst_stride
* sizeof(float),
274 src
, util_format_get_stride(format
, w
),
281 pipe_get_tile_rgba(struct pipe_context
*pipe
,
282 struct pipe_transfer
*pt
,
283 uint x
, uint y
, uint w
, uint h
,
286 unsigned dst_stride
= w
* 4;
288 enum pipe_format format
= pt
->resource
->format
;
290 if (u_clip_tile(x
, y
, &w
, &h
, &pt
->box
))
293 packed
= MALLOC(util_format_get_nblocks(format
, w
, h
) * util_format_get_blocksize(format
));
298 if(format
== PIPE_FORMAT_UYVY
|| format
== PIPE_FORMAT_YUYV
)
299 assert((x
& 1) == 0);
301 pipe_get_tile_raw(pipe
, pt
, x
, y
, w
, h
, packed
, 0);
303 pipe_tile_raw_to_rgba(format
, packed
, w
, h
, p
, dst_stride
);
310 pipe_get_tile_swizzle(struct pipe_context
*pipe
,
311 struct pipe_transfer
*pt
,
320 enum pipe_format format
,
323 unsigned dst_stride
= w
* 4;
328 if (u_clip_tile(x
, y
, &w
, &h
, &pt
->box
)) {
332 packed
= MALLOC(util_format_get_nblocks(format
, w
, h
) * util_format_get_blocksize(format
));
337 if (format
== PIPE_FORMAT_UYVY
|| format
== PIPE_FORMAT_YUYV
) {
338 assert((x
& 1) == 0);
341 pipe_get_tile_raw(pipe
, pt
, x
, y
, w
, h
, packed
, 0);
343 pipe_tile_raw_to_rgba(format
, packed
, w
, h
, p
, dst_stride
);
347 if (swizzle_r
== PIPE_SWIZZLE_RED
&&
348 swizzle_g
== PIPE_SWIZZLE_GREEN
&&
349 swizzle_b
== PIPE_SWIZZLE_BLUE
&&
350 swizzle_a
== PIPE_SWIZZLE_ALPHA
) {
355 rgba01
[PIPE_SWIZZLE_ZERO
] = 0.0f
;
356 rgba01
[PIPE_SWIZZLE_ONE
] = 1.0f
;
358 for (iy
= 0; iy
< h
; iy
++) {
362 for (ix
= 0; ix
< w
; ix
++) {
363 rgba01
[PIPE_SWIZZLE_RED
] = row
[0];
364 rgba01
[PIPE_SWIZZLE_GREEN
] = row
[1];
365 rgba01
[PIPE_SWIZZLE_BLUE
] = row
[2];
366 rgba01
[PIPE_SWIZZLE_ALPHA
] = row
[3];
368 *row
++ = rgba01
[swizzle_r
];
369 *row
++ = rgba01
[swizzle_g
];
370 *row
++ = rgba01
[swizzle_b
];
371 *row
++ = rgba01
[swizzle_a
];
379 pipe_put_tile_rgba(struct pipe_context
*pipe
,
380 struct pipe_transfer
*pt
,
381 uint x
, uint y
, uint w
, uint h
,
384 unsigned src_stride
= w
* 4;
386 enum pipe_format format
= pt
->resource
->format
;
388 if (u_clip_tile(x
, y
, &w
, &h
, &pt
->box
))
391 packed
= MALLOC(util_format_get_nblocks(format
, w
, h
) * util_format_get_blocksize(format
));
397 case PIPE_FORMAT_Z16_UNORM
:
398 /*z16_put_tile_rgba((ushort *) packed, w, h, p, src_stride);*/
400 case PIPE_FORMAT_Z32_UNORM
:
401 /*z32_put_tile_rgba((unsigned *) packed, w, h, p, src_stride);*/
403 case PIPE_FORMAT_Z24_UNORM_S8_USCALED
:
404 case PIPE_FORMAT_Z24X8_UNORM
:
405 /*s8z24_put_tile_rgba((unsigned *) packed, w, h, p, src_stride);*/
407 case PIPE_FORMAT_S8_USCALED_Z24_UNORM
:
408 case PIPE_FORMAT_X8Z24_UNORM
:
409 /*z24s8_put_tile_rgba((unsigned *) packed, w, h, p, src_stride);*/
412 util_format_write_4f(format
,
413 p
, src_stride
* sizeof(float),
414 packed
, util_format_get_stride(format
, w
),
418 pipe_put_tile_raw(pipe
, pt
, x
, y
, w
, h
, packed
, 0);
425 * Get a block of Z values, converted to 32-bit range.
428 pipe_get_tile_z(struct pipe_context
*pipe
,
429 struct pipe_transfer
*pt
,
430 uint x
, uint y
, uint w
, uint h
,
433 const uint dstStride
= w
;
437 enum pipe_format format
= pt
->resource
->format
;
439 if (u_clip_tile(x
, y
, &w
, &h
, &pt
->box
))
442 map
= (ubyte
*)pipe
->transfer_map(pipe
, pt
);
449 case PIPE_FORMAT_Z32_UNORM
:
452 = (const uint
*)(map
+ y
* pt
->stride
+ x
*4);
453 for (i
= 0; i
< h
; i
++) {
454 memcpy(pDest
, ptrc
, 4 * w
);
456 ptrc
+= pt
->stride
/4;
460 case PIPE_FORMAT_Z24_UNORM_S8_USCALED
:
461 case PIPE_FORMAT_Z24X8_UNORM
:
464 = (const uint
*)(map
+ y
* pt
->stride
+ x
*4);
465 for (i
= 0; i
< h
; i
++) {
466 for (j
= 0; j
< w
; j
++) {
467 /* convert 24-bit Z to 32-bit Z */
468 pDest
[j
] = (ptrc
[j
] << 8) | ((ptrc
[j
] >> 16) & 0xff);
471 ptrc
+= pt
->stride
/4;
475 case PIPE_FORMAT_S8_USCALED_Z24_UNORM
:
476 case PIPE_FORMAT_X8Z24_UNORM
:
479 = (const uint
*)(map
+ y
* pt
->stride
+ x
*4);
480 for (i
= 0; i
< h
; i
++) {
481 for (j
= 0; j
< w
; j
++) {
482 /* convert 24-bit Z to 32-bit Z */
483 pDest
[j
] = (ptrc
[j
] & 0xffffff00) | ((ptrc
[j
] >> 24) & 0xff);
486 ptrc
+= pt
->stride
/4;
490 case PIPE_FORMAT_Z16_UNORM
:
493 = (const ushort
*)(map
+ y
* pt
->stride
+ x
*2);
494 for (i
= 0; i
< h
; i
++) {
495 for (j
= 0; j
< w
; j
++) {
496 /* convert 16-bit Z to 32-bit Z */
497 pDest
[j
] = (ptrc
[j
] << 16) | ptrc
[j
];
500 ptrc
+= pt
->stride
/2;
508 pipe
->transfer_unmap(pipe
, pt
);
513 pipe_put_tile_z(struct pipe_context
*pipe
,
514 struct pipe_transfer
*pt
,
515 uint x
, uint y
, uint w
, uint h
,
518 const uint srcStride
= w
;
519 const uint
*ptrc
= zSrc
;
522 enum pipe_format format
= pt
->resource
->format
;
524 if (u_clip_tile(x
, y
, &w
, &h
, &pt
->box
))
527 map
= (ubyte
*)pipe
->transfer_map(pipe
, pt
);
534 case PIPE_FORMAT_Z32_UNORM
:
536 uint
*pDest
= (uint
*) (map
+ y
* pt
->stride
+ x
*4);
537 for (i
= 0; i
< h
; i
++) {
538 memcpy(pDest
, ptrc
, 4 * w
);
539 pDest
+= pt
->stride
/4;
544 case PIPE_FORMAT_Z24_UNORM_S8_USCALED
:
546 uint
*pDest
= (uint
*) (map
+ y
* pt
->stride
+ x
*4);
547 /*assert((pt->usage & PIPE_TRANSFER_READ_WRITE) == PIPE_TRANSFER_READ_WRITE);*/
548 for (i
= 0; i
< h
; i
++) {
549 for (j
= 0; j
< w
; j
++) {
550 /* convert 32-bit Z to 24-bit Z, preserve stencil */
551 pDest
[j
] = (pDest
[j
] & 0xff000000) | ptrc
[j
] >> 8;
553 pDest
+= pt
->stride
/4;
558 case PIPE_FORMAT_Z24X8_UNORM
:
560 uint
*pDest
= (uint
*) (map
+ y
* pt
->stride
+ x
*4);
561 for (i
= 0; i
< h
; i
++) {
562 for (j
= 0; j
< w
; j
++) {
563 /* convert 32-bit Z to 24-bit Z (0 stencil) */
564 pDest
[j
] = ptrc
[j
] >> 8;
566 pDest
+= pt
->stride
/4;
571 case PIPE_FORMAT_S8_USCALED_Z24_UNORM
:
573 uint
*pDest
= (uint
*) (map
+ y
* pt
->stride
+ x
*4);
574 /*assert((pt->usage & PIPE_TRANSFER_READ_WRITE) == PIPE_TRANSFER_READ_WRITE);*/
575 for (i
= 0; i
< h
; i
++) {
576 for (j
= 0; j
< w
; j
++) {
577 /* convert 32-bit Z to 24-bit Z, preserve stencil */
578 pDest
[j
] = (pDest
[j
] & 0xff) | (ptrc
[j
] & 0xffffff00);
580 pDest
+= pt
->stride
/4;
585 case PIPE_FORMAT_X8Z24_UNORM
:
587 uint
*pDest
= (uint
*) (map
+ y
* pt
->stride
+ x
*4);
588 for (i
= 0; i
< h
; i
++) {
589 for (j
= 0; j
< w
; j
++) {
590 /* convert 32-bit Z to 24-bit Z (0 stencil) */
591 pDest
[j
] = ptrc
[j
] & 0xffffff00;
593 pDest
+= pt
->stride
/4;
598 case PIPE_FORMAT_Z16_UNORM
:
600 ushort
*pDest
= (ushort
*) (map
+ y
* pt
->stride
+ x
*2);
601 for (i
= 0; i
< h
; i
++) {
602 for (j
= 0; j
< w
; j
++) {
603 /* convert 32-bit Z to 16-bit Z */
604 pDest
[j
] = ptrc
[j
] >> 16;
606 pDest
+= pt
->stride
/2;
615 pipe
->transfer_unmap(pipe
, pt
);