1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
|
/*
* Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
* Copyright 2010 Marek Olšák <maraeo@gmail.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* on the rights to use, copy, modify, merge, publish, distribute, sub
* license, and/or sell copies of the Software, and to permit persons to whom
* the Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* USE OR OTHER DEALINGS IN THE SOFTWARE. */
#include "r300_texture_desc.h"
#include "r300_context.h"
#include "r300_winsys.h"
#include "util/u_format.h"
/* Returns the number of pixels that the texture should be aligned to
* in the given dimension. */
unsigned r300_get_pixel_alignment(enum pipe_format format,
unsigned num_samples,
enum r300_buffer_tiling microtile,
enum r300_buffer_tiling macrotile,
enum r300_dim dim, boolean is_rs690)
{
static const unsigned table[2][5][3][2] =
{
{
/* Macro: linear linear linear
Micro: linear tiled square-tiled */
{{ 32, 1}, { 8, 4}, { 0, 0}}, /* 8 bits per pixel */
{{ 16, 1}, { 8, 2}, { 4, 4}}, /* 16 bits per pixel */
{{ 8, 1}, { 4, 2}, { 0, 0}}, /* 32 bits per pixel */
{{ 4, 1}, { 2, 2}, { 0, 0}}, /* 64 bits per pixel */
{{ 2, 1}, { 0, 0}, { 0, 0}} /* 128 bits per pixel */
},
{
/* Macro: tiled tiled tiled
Micro: linear tiled square-tiled */
{{256, 8}, {64, 32}, { 0, 0}}, /* 8 bits per pixel */
{{128, 8}, {64, 16}, {32, 32}}, /* 16 bits per pixel */
{{ 64, 8}, {32, 16}, { 0, 0}}, /* 32 bits per pixel */
{{ 32, 8}, {16, 16}, { 0, 0}}, /* 64 bits per pixel */
{{ 16, 8}, { 0, 0}, { 0, 0}} /* 128 bits per pixel */
}
};
static const unsigned aa_block[2] = {4, 8};
unsigned tile = 0;
unsigned pixsize = util_format_get_blocksize(format);
assert(macrotile <= R300_BUFFER_TILED);
assert(microtile <= R300_BUFFER_SQUARETILED);
assert(pixsize <= 16);
assert(dim <= DIM_HEIGHT);
if (num_samples > 1) {
/* Multisampled textures have their own alignment scheme. */
if (pixsize == 4)
tile = aa_block[dim];
/* XXX FP16 AA. */
} else {
/* Standard alignment. */
tile = table[macrotile][util_logbase2(pixsize)][microtile][dim];
if (macrotile == 0 && is_rs690 && dim == DIM_WIDTH) {
int align;
int h_tile;
h_tile = table[macrotile][util_logbase2(pixsize)][microtile][DIM_HEIGHT];
align = 64 / (pixsize * h_tile);
if (tile < align)
tile = align;
}
}
assert(tile);
return tile;
}
/* Return true if macrotiling should be enabled on the miplevel. */
static boolean r300_texture_macro_switch(struct r300_resource *tex,
unsigned level,
boolean rv350_mode,
enum r300_dim dim)
{
unsigned tile, texdim;
tile = r300_get_pixel_alignment(tex->b.b.b.format, tex->b.b.b.nr_samples,
tex->tex.microtile, R300_BUFFER_TILED, dim, 0);
if (dim == DIM_WIDTH) {
texdim = u_minify(tex->tex.width0, level);
} else {
texdim = u_minify(tex->tex.height0, level);
}
/* See TX_FILTER1_n.MACRO_SWITCH. */
if (rv350_mode) {
return texdim >= tile;
} else {
return texdim > tile;
}
}
/**
* Return the stride, in bytes, of the texture image of the given texture
* at the given level.
*/
static unsigned r300_texture_get_stride(struct r300_screen *screen,
struct r300_resource *tex,
unsigned level)
{
unsigned tile_width, width, stride;
boolean is_rs690 = (screen->caps.family == CHIP_FAMILY_RS600 ||
screen->caps.family == CHIP_FAMILY_RS690 ||
screen->caps.family == CHIP_FAMILY_RS740);
if (tex->tex.stride_in_bytes_override)
return tex->tex.stride_in_bytes_override;
/* Check the level. */
if (level > tex->b.b.b.last_level) {
SCREEN_DBG(screen, DBG_TEX, "%s: level (%u) > last_level (%u)\n",
__FUNCTION__, level, tex->b.b.b.last_level);
return 0;
}
width = u_minify(tex->tex.width0, level);
if (util_format_is_plain(tex->b.b.b.format)) {
tile_width = r300_get_pixel_alignment(tex->b.b.b.format,
tex->b.b.b.nr_samples,
tex->tex.microtile,
tex->tex.macrotile[level],
DIM_WIDTH, is_rs690);
width = align(width, tile_width);
stride = util_format_get_stride(tex->b.b.b.format, width);
/* The alignment to 32 bytes is sort of implied by the layout... */
return stride;
} else {
return align(util_format_get_stride(tex->b.b.b.format, width), is_rs690 ? 64 : 32);
}
}
static unsigned r300_texture_get_nblocksy(struct r300_resource *tex,
unsigned level,
boolean *out_aligned_for_cbzb)
{
unsigned height, tile_height;
height = u_minify(tex->tex.height0, level);
/* Mipmapped and 3D textures must have their height aligned to POT. */
if ((tex->b.b.b.target != PIPE_TEXTURE_1D &&
tex->b.b.b.target != PIPE_TEXTURE_2D &&
tex->b.b.b.target != PIPE_TEXTURE_RECT) ||
tex->b.b.b.last_level != 0) {
height = util_next_power_of_two(height);
}
if (util_format_is_plain(tex->b.b.b.format)) {
tile_height = r300_get_pixel_alignment(tex->b.b.b.format,
tex->b.b.b.nr_samples,
tex->tex.microtile,
tex->tex.macrotile[level],
DIM_HEIGHT, 0);
height = align(height, tile_height);
/* See if the CBZB clear can be used on the buffer,
* taking the texture size into account. */
if (out_aligned_for_cbzb) {
if (tex->tex.macrotile[level]) {
/* When clearing, the layer (width*height) is horizontally split
* into two, and the upper and lower halves are cleared by the CB
* and ZB units, respectively. Therefore, the number of macrotiles
* in the Y direction must be even. */
/* Align the height so that there is an even number of macrotiles.
* Do so for 3 or more macrotiles in the Y direction. */
if (level == 0 && tex->b.b.b.last_level == 0 &&
(tex->b.b.b.target == PIPE_TEXTURE_1D ||
tex->b.b.b.target == PIPE_TEXTURE_2D ||
tex->b.b.b.target == PIPE_TEXTURE_RECT) &&
height >= tile_height * 3) {
height = align(height, tile_height * 2);
}
*out_aligned_for_cbzb = height % (tile_height * 2) == 0;
} else {
*out_aligned_for_cbzb = FALSE;
}
}
}
return util_format_get_nblocksy(tex->b.b.b.format, height);
}
/* Get a width in pixels from a stride in bytes. */
static unsigned stride_to_width(enum pipe_format format,
unsigned stride_in_bytes)
{
return (stride_in_bytes / util_format_get_blocksize(format)) *
util_format_get_blockwidth(format);
}
static void r300_setup_miptree(struct r300_screen *screen,
struct r300_resource *tex,
boolean align_for_cbzb)
{
struct pipe_resource *base = &tex->b.b.b;
unsigned stride, size, layer_size, nblocksy, i;
boolean rv350_mode = screen->caps.family >= CHIP_FAMILY_R350;
boolean aligned_for_cbzb;
tex->tex.size_in_bytes = 0;
SCREEN_DBG(screen, DBG_TEXALLOC,
"r300: Making miptree for texture, format %s\n",
util_format_short_name(base->format));
for (i = 0; i <= base->last_level; i++) {
/* Let's see if this miplevel can be macrotiled. */
tex->tex.macrotile[i] =
(tex->tex.macrotile[0] == R300_BUFFER_TILED &&
r300_texture_macro_switch(tex, i, rv350_mode, DIM_WIDTH) &&
r300_texture_macro_switch(tex, i, rv350_mode, DIM_HEIGHT)) ?
R300_BUFFER_TILED : R300_BUFFER_LINEAR;
stride = r300_texture_get_stride(screen, tex, i);
/* Compute the number of blocks in Y, see if the CBZB clear can be
* used on the texture. */
aligned_for_cbzb = FALSE;
if (align_for_cbzb && tex->tex.cbzb_allowed[i])
nblocksy = r300_texture_get_nblocksy(tex, i, &aligned_for_cbzb);
else
nblocksy = r300_texture_get_nblocksy(tex, i, NULL);
layer_size = stride * nblocksy;
if (base->nr_samples) {
layer_size *= base->nr_samples;
}
if (base->target == PIPE_TEXTURE_CUBE)
size = layer_size * 6;
else
size = layer_size * u_minify(tex->tex.depth0, i);
tex->tex.offset_in_bytes[i] = tex->tex.size_in_bytes;
tex->tex.size_in_bytes = tex->tex.offset_in_bytes[i] + size;
tex->tex.layer_size_in_bytes[i] = layer_size;
tex->tex.stride_in_bytes[i] = stride;
tex->tex.stride_in_pixels[i] = stride_to_width(tex->b.b.b.format, stride);
tex->tex.cbzb_allowed[i] = tex->tex.cbzb_allowed[i] && aligned_for_cbzb;
SCREEN_DBG(screen, DBG_TEXALLOC, "r300: Texture miptree: Level %d "
"(%dx%dx%d px, pitch %d bytes) %d bytes total, macrotiled %s\n",
i, u_minify(tex->tex.width0, i), u_minify(tex->tex.height0, i),
u_minify(tex->tex.depth0, i), stride, tex->tex.size_in_bytes,
tex->tex.macrotile[i] ? "TRUE" : "FALSE");
}
}
static void r300_setup_flags(struct r300_resource *tex)
{
tex->tex.uses_stride_addressing =
!util_is_power_of_two(tex->b.b.b.width0) ||
(tex->tex.stride_in_bytes_override &&
stride_to_width(tex->b.b.b.format,
tex->tex.stride_in_bytes_override) != tex->b.b.b.width0);
tex->tex.is_npot =
tex->tex.uses_stride_addressing ||
!util_is_power_of_two(tex->b.b.b.height0) ||
!util_is_power_of_two(tex->b.b.b.depth0);
}
static void r300_setup_cbzb_flags(struct r300_screen *rscreen,
struct r300_resource *tex)
{
unsigned i, bpp;
boolean first_level_valid;
bpp = util_format_get_blocksizebits(tex->b.b.b.format);
/* 1) The texture must be point-sampled,
* 2) The depth must be 16 or 32 bits.
* 3) If the midpoint ZB offset is not aligned to 2048, it returns garbage
* with certain texture sizes. Macrotiling ensures the alignment. */
first_level_valid = tex->b.b.b.nr_samples <= 1 &&
(bpp == 16 || bpp == 32) &&
tex->tex.macrotile[0];
if (SCREEN_DBG_ON(rscreen, DBG_NO_CBZB))
first_level_valid = FALSE;
for (i = 0; i <= tex->b.b.b.last_level; i++)
tex->tex.cbzb_allowed[i] = first_level_valid && tex->tex.macrotile[i];
}
static unsigned r300_pixels_to_dwords(unsigned stride,
unsigned height,
unsigned xblock, unsigned yblock)
{
return (align(stride, xblock) * align(height, yblock)) / (xblock * yblock);
}
static void r300_setup_hyperz_properties(struct r300_screen *screen,
struct r300_resource *tex)
{
/* The tile size of 1 DWORD in ZMASK RAM is:
*
* GPU Pipes 4x4 mode 8x8 mode
* ------------------------------------------
* R580 4P/1Z 32x32 64x64
* RV570 3P/1Z 48x16 96x32
* RV530 1P/2Z 32x16 64x32
* 1P/1Z 16x16 32x32
*/
static unsigned zmask_blocks_x_per_dw[4] = {4, 8, 12, 8};
static unsigned zmask_blocks_y_per_dw[4] = {4, 4, 4, 8};
/* In HIZ RAM, one dword is always 8x8 pixels (each byte is 4x4 pixels),
* but the blocks have very weird ordering.
*
* With 2 pipes and an image of size 8xY, where Y >= 1,
* clearing 4 dwords clears blocks like this:
*
* 01012323
*
* where numbers correspond to dword indices. The blocks are interleaved
* in the X direction, so the alignment must be 4x1 blocks (32x8 pixels).
*
* With 4 pipes and an image of size 8xY, where Y >= 4,
* clearing 8 dwords clears blocks like this:
* 01012323
* 45456767
* 01012323
* 45456767
* where numbers correspond to dword indices. The blocks are interleaved
* in both directions, so the alignment must be 4x4 blocks (32x32 pixels)
*/
static unsigned hiz_align_x[4] = {8, 32, 48, 32};
static unsigned hiz_align_y[4] = {8, 8, 8, 32};
if (util_format_is_depth_or_stencil(tex->b.b.b.format) &&
util_format_get_blocksizebits(tex->b.b.b.format) == 32 &&
tex->tex.microtile) {
unsigned i, pipes;
if (screen->caps.family == CHIP_FAMILY_RV530) {
pipes = screen->caps.num_z_pipes;
} else {
pipes = screen->caps.num_frag_pipes;
}
for (i = 0; i <= tex->b.b.b.last_level; i++) {
unsigned zcomp_numdw, zcompsize, hiz_numdw, stride, height;
stride = align(tex->tex.stride_in_pixels[i], 16);
height = u_minify(tex->b.b.b.height0, i);
/* The 8x8 compression mode needs macrotiling. */
zcompsize = screen->caps.z_compress == R300_ZCOMP_8X8 &&
tex->tex.macrotile[i] &&
tex->b.b.b.nr_samples <= 1 ? 8 : 4;
/* Get the ZMASK buffer size in dwords. */
zcomp_numdw = r300_pixels_to_dwords(stride, height,
zmask_blocks_x_per_dw[pipes-1] * zcompsize,
zmask_blocks_y_per_dw[pipes-1] * zcompsize);
/* Check whether we have enough ZMASK memory. */
if (util_format_get_blocksizebits(tex->b.b.b.format) == 32 &&
zcomp_numdw <= screen->caps.zmask_ram * pipes) {
tex->tex.zmask_dwords[i] = zcomp_numdw;
tex->tex.zcomp8x8[i] = zcompsize == 8;
tex->tex.zmask_stride_in_pixels[i] =
align(stride, zmask_blocks_x_per_dw[pipes-1] * zcompsize);
} else {
tex->tex.zmask_dwords[i] = 0;
tex->tex.zcomp8x8[i] = FALSE;
tex->tex.zmask_stride_in_pixels[i] = 0;
}
/* Now setup HIZ. */
stride = align(stride, hiz_align_x[pipes-1]);
height = align(height, hiz_align_y[pipes-1]);
/* Get the HIZ buffer size in dwords. */
hiz_numdw = (stride * height) / (8*8 * pipes);
/* Check whether we have enough HIZ memory. */
if (hiz_numdw <= screen->caps.hiz_ram * pipes) {
tex->tex.hiz_dwords[i] = hiz_numdw;
tex->tex.hiz_stride_in_pixels[i] = stride;
} else {
tex->tex.hiz_dwords[i] = 0;
tex->tex.hiz_stride_in_pixels[i] = 0;
}
}
}
}
static void r300_setup_tiling(struct r300_screen *screen,
struct r300_resource *tex)
{
enum pipe_format format = tex->b.b.b.format;
boolean rv350_mode = screen->caps.family >= CHIP_FAMILY_R350;
boolean is_zb = util_format_is_depth_or_stencil(format);
boolean dbg_no_tiling = SCREEN_DBG_ON(screen, DBG_NO_TILING);
tex->tex.microtile = R300_BUFFER_LINEAR;
tex->tex.macrotile[0] = R300_BUFFER_LINEAR;
if (!util_format_is_plain(format)) {
return;
}
/* If height == 1, disable microtiling except for zbuffer. */
if (!is_zb && (tex->b.b.b.height0 == 1 || dbg_no_tiling)) {
return;
}
/* Set microtiling. */
switch (util_format_get_blocksize(format)) {
case 1:
case 4:
case 8:
tex->tex.microtile = R300_BUFFER_TILED;
break;
case 2:
tex->tex.microtile = R300_BUFFER_SQUARETILED;
break;
}
if (dbg_no_tiling) {
return;
}
/* Set macrotiling. */
if (r300_texture_macro_switch(tex, 0, rv350_mode, DIM_WIDTH) &&
r300_texture_macro_switch(tex, 0, rv350_mode, DIM_HEIGHT)) {
tex->tex.macrotile[0] = R300_BUFFER_TILED;
}
}
static void r300_tex_print_info(struct r300_resource *tex,
const char *func)
{
fprintf(stderr,
"r300: %s: Macro: %s, Micro: %s, Pitch: %i, Dim: %ix%ix%i, "
"LastLevel: %i, Size: %i, Format: %s\n",
func,
tex->tex.macrotile[0] ? "YES" : " NO",
tex->tex.microtile ? "YES" : " NO",
tex->tex.stride_in_pixels[0],
tex->b.b.b.width0, tex->b.b.b.height0, tex->b.b.b.depth0,
tex->b.b.b.last_level, tex->tex.size_in_bytes,
util_format_short_name(tex->b.b.b.format));
}
boolean r300_texture_desc_init(struct r300_screen *rscreen,
struct r300_resource *tex,
const struct pipe_resource *base)
{
tex->b.b.b.target = base->target;
tex->b.b.b.format = base->format;
tex->b.b.b.width0 = base->width0;
tex->b.b.b.height0 = base->height0;
tex->b.b.b.depth0 = base->depth0;
tex->b.b.b.array_size = base->array_size;
tex->b.b.b.last_level = base->last_level;
tex->b.b.b.nr_samples = base->nr_samples;
tex->tex.width0 = base->width0;
tex->tex.height0 = base->height0;
tex->tex.depth0 = base->depth0;
r300_setup_flags(tex);
/* Align a 3D NPOT texture to POT. */
if (base->target == PIPE_TEXTURE_3D && tex->tex.is_npot) {
tex->tex.width0 = util_next_power_of_two(tex->tex.width0);
tex->tex.height0 = util_next_power_of_two(tex->tex.height0);
tex->tex.depth0 = util_next_power_of_two(tex->tex.depth0);
}
/* Setup tiling. */
if (tex->tex.microtile == R300_BUFFER_SELECT_LAYOUT) {
r300_setup_tiling(rscreen, tex);
}
r300_setup_cbzb_flags(rscreen, tex);
/* Setup the miptree description. */
r300_setup_miptree(rscreen, tex, TRUE);
/* If the required buffer size is larger the given max size,
* try again without the alignment for the CBZB clear. */
if (tex->buf_size && tex->tex.size_in_bytes > tex->buf_size) {
r300_setup_miptree(rscreen, tex, FALSE);
}
r300_setup_hyperz_properties(rscreen, tex);
if (tex->buf_size) {
/* Make sure the buffer we got is large enough. */
if (tex->tex.size_in_bytes > tex->buf_size) {
fprintf(stderr, "r300: texture_desc_init: The buffer is not "
"large enough. Got: %i, Need: %i, Info:\n",
tex->buf_size, tex->tex.size_in_bytes);
r300_tex_print_info(tex, "texture_desc_init");
return FALSE;
}
tex->tex.buffer_size_in_bytes = tex->buf_size;
} else {
tex->tex.buffer_size_in_bytes = tex->tex.size_in_bytes;
}
if (SCREEN_DBG_ON(rscreen, DBG_TEX))
r300_tex_print_info(tex, "texture_desc_init");
return TRUE;
}
unsigned r300_texture_get_offset(struct r300_resource *tex,
unsigned level, unsigned layer)
{
unsigned offset = tex->tex.offset_in_bytes[level];
switch (tex->b.b.b.target) {
case PIPE_TEXTURE_3D:
case PIPE_TEXTURE_CUBE:
return offset + layer * tex->tex.layer_size_in_bytes[level];
default:
assert(layer == 0);
return offset;
}
}
|