2 * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
3 * Copyright 2010 Marek Olšák <maraeo@gmail.com>
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:
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
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. */
24 #include "pipe/p_screen.h"
26 #include "util/u_format.h"
27 #include "util/u_math.h"
28 #include "util/u_memory.h"
30 #include "r300_context.h"
31 #include "r300_texture.h"
32 #include "r300_screen.h"
33 #include "r300_state_inlines.h"
34 #include "r300_winsys.h"
36 /* XXX Enable float textures here. */
37 /*#define ENABLE_FLOAT_TEXTURES*/
42 static const unsigned microblock_table
[5][3][2] = {
43 /*linear tiled square-tiled */
44 {{32, 1}, {8, 4}, {0, 0}}, /* 8 bits per pixel */
45 {{16, 1}, {8, 2}, {4, 4}}, /* 16 bits per pixel */
46 {{ 8, 1}, {4, 2}, {0, 0}}, /* 32 bits per pixel */
47 {{ 4, 1}, {0, 0}, {2, 2}}, /* 64 bits per pixel */
48 {{ 2, 1}, {0, 0}, {0, 0}} /* 128 bits per pixel */
51 /* Return true for non-compressed and non-YUV formats. */
52 static boolean
r300_format_is_plain(enum pipe_format format
)
54 const struct util_format_description
*desc
= util_format_description(format
);
60 return desc
->layout
== UTIL_FORMAT_LAYOUT_PLAIN
;
63 /* Translate a pipe_format into a useful texture format for sampling.
65 * Some special formats are translated directly using R300_EASY_TX_FORMAT,
66 * but the majority of them is translated in a generic way, automatically
67 * supporting all the formats hw can support.
69 * R300_EASY_TX_FORMAT swizzles the texture.
70 * Note the signature of R300_EASY_TX_FORMAT:
71 * R300_EASY_TX_FORMAT(B, G, R, A, FORMAT);
73 * The FORMAT specifies how the texture sampler will treat the texture, and
74 * makes available X, Y, Z, W, ZERO, and ONE for swizzling. */
75 static uint32_t r300_translate_texformat(enum pipe_format format
)
78 const struct util_format_description
*desc
;
80 boolean uniform
= TRUE
;
81 const uint32_t swizzle_shift
[4] = {
82 R300_TX_FORMAT_R_SHIFT
,
83 R300_TX_FORMAT_G_SHIFT
,
84 R300_TX_FORMAT_B_SHIFT
,
85 R300_TX_FORMAT_A_SHIFT
87 const uint32_t swizzle
[4] = {
93 const uint32_t sign_bit
[4] = {
94 R300_TX_FORMAT_SIGNED_X
,
95 R300_TX_FORMAT_SIGNED_Y
,
96 R300_TX_FORMAT_SIGNED_Z
,
97 R300_TX_FORMAT_SIGNED_W
,
100 desc
= util_format_description(format
);
102 /* Colorspace (return non-RGB formats directly). */
103 switch (desc
->colorspace
) {
104 /* Depth stencil formats. */
105 case UTIL_FORMAT_COLORSPACE_ZS
:
107 case PIPE_FORMAT_Z16_UNORM
:
108 return R300_EASY_TX_FORMAT(X
, X
, X
, X
, X16
);
109 case PIPE_FORMAT_X8Z24_UNORM
:
110 case PIPE_FORMAT_S8_USCALED_Z24_UNORM
:
111 return R300_EASY_TX_FORMAT(X
, X
, X
, X
, W24_FP
);
113 return ~0; /* Unsupported. */
117 case UTIL_FORMAT_COLORSPACE_YUV
:
118 result
|= R300_TX_FORMAT_YUV_TO_RGB
;
121 case PIPE_FORMAT_UYVY
:
122 return R300_EASY_TX_FORMAT(X
, Y
, Z
, ONE
, YVYU422
) | result
;
123 case PIPE_FORMAT_YUYV
:
124 return R300_EASY_TX_FORMAT(X
, Y
, Z
, ONE
, VYUY422
) | result
;
126 return ~0; /* Unsupported/unknown. */
129 /* Add gamma correction. */
130 case UTIL_FORMAT_COLORSPACE_SRGB
:
131 result
|= R300_TX_FORMAT_GAMMA
;
138 for (i
= 0; i
< 4; i
++) {
139 switch (desc
->swizzle
[i
]) {
140 case UTIL_FORMAT_SWIZZLE_X
:
141 case UTIL_FORMAT_SWIZZLE_NONE
:
142 result
|= swizzle
[0] << swizzle_shift
[i
];
144 case UTIL_FORMAT_SWIZZLE_Y
:
145 result
|= swizzle
[1] << swizzle_shift
[i
];
147 case UTIL_FORMAT_SWIZZLE_Z
:
148 result
|= swizzle
[2] << swizzle_shift
[i
];
150 case UTIL_FORMAT_SWIZZLE_W
:
151 result
|= swizzle
[3] << swizzle_shift
[i
];
153 case UTIL_FORMAT_SWIZZLE_0
:
154 result
|= R300_TX_FORMAT_ZERO
<< swizzle_shift
[i
];
156 case UTIL_FORMAT_SWIZZLE_1
:
157 result
|= R300_TX_FORMAT_ONE
<< swizzle_shift
[i
];
160 return ~0; /* Unsupported. */
165 if (desc
->layout
== UTIL_FORMAT_LAYOUT_S3TC
) {
167 case PIPE_FORMAT_DXT1_RGB
:
168 case PIPE_FORMAT_DXT1_RGBA
:
169 case PIPE_FORMAT_DXT1_SRGB
:
170 case PIPE_FORMAT_DXT1_SRGBA
:
171 return R300_TX_FORMAT_DXT1
| result
;
172 case PIPE_FORMAT_DXT3_RGBA
:
173 case PIPE_FORMAT_DXT3_SRGBA
:
174 return R300_TX_FORMAT_DXT3
| result
;
175 case PIPE_FORMAT_DXT5_RGBA
:
176 case PIPE_FORMAT_DXT5_SRGBA
:
177 return R300_TX_FORMAT_DXT5
| result
;
179 return ~0; /* Unsupported/unknown. */
184 for (i
= 0; i
< desc
->nr_channels
; i
++) {
185 if (desc
->channel
[i
].type
== UTIL_FORMAT_TYPE_SIGNED
) {
186 result
|= sign_bit
[i
];
191 if (desc
->layout
== UTIL_FORMAT_LAYOUT_RGTC
) {
193 case PIPE_FORMAT_RGTC1_UNORM
:
194 case PIPE_FORMAT_RGTC1_SNORM
:
195 return R500_TX_FORMAT_ATI1N
| result
;
196 case PIPE_FORMAT_RGTC2_UNORM
:
197 case PIPE_FORMAT_RGTC2_SNORM
:
198 return R400_TX_FORMAT_ATI2N
| result
;
200 return ~0; /* Unsupported/unknown. */
204 /* See whether the components are of the same size. */
205 for (i
= 1; i
< desc
->nr_channels
; i
++) {
206 uniform
= uniform
&& desc
->channel
[0].size
== desc
->channel
[i
].size
;
209 /* Non-uniform formats. */
211 switch (desc
->nr_channels
) {
213 if (desc
->channel
[0].size
== 5 &&
214 desc
->channel
[1].size
== 6 &&
215 desc
->channel
[2].size
== 5) {
216 return R300_TX_FORMAT_Z5Y6X5
| result
;
218 if (desc
->channel
[0].size
== 5 &&
219 desc
->channel
[1].size
== 5 &&
220 desc
->channel
[2].size
== 6) {
221 return R300_TX_FORMAT_Z6Y5X5
| result
;
223 return ~0; /* Unsupported/unknown. */
226 if (desc
->channel
[0].size
== 5 &&
227 desc
->channel
[1].size
== 5 &&
228 desc
->channel
[2].size
== 5 &&
229 desc
->channel
[3].size
== 1) {
230 return R300_TX_FORMAT_W1Z5Y5X5
| result
;
232 if (desc
->channel
[0].size
== 10 &&
233 desc
->channel
[1].size
== 10 &&
234 desc
->channel
[2].size
== 10 &&
235 desc
->channel
[3].size
== 2) {
236 return R300_TX_FORMAT_W2Z10Y10X10
| result
;
239 return ~0; /* Unsupported/unknown. */
242 /* And finally, uniform formats. */
243 switch (desc
->channel
[0].type
) {
244 case UTIL_FORMAT_TYPE_UNSIGNED
:
245 case UTIL_FORMAT_TYPE_SIGNED
:
246 if (!desc
->channel
[0].normalized
&&
247 desc
->colorspace
!= UTIL_FORMAT_COLORSPACE_SRGB
) {
251 switch (desc
->channel
[0].size
) {
253 switch (desc
->nr_channels
) {
255 return R300_TX_FORMAT_Y4X4
| result
;
257 return R300_TX_FORMAT_W4Z4Y4X4
| result
;
262 switch (desc
->nr_channels
) {
264 return R300_TX_FORMAT_X8
| result
;
266 return R300_TX_FORMAT_Y8X8
| result
;
268 return R300_TX_FORMAT_W8Z8Y8X8
| result
;
273 switch (desc
->nr_channels
) {
275 return R300_TX_FORMAT_X16
| result
;
277 return R300_TX_FORMAT_Y16X16
| result
;
279 return R300_TX_FORMAT_W16Z16Y16X16
| result
;
284 #if defined(ENABLE_FLOAT_TEXTURES)
285 case UTIL_FORMAT_TYPE_FLOAT
:
286 switch (desc
->channel
[0].size
) {
288 switch (desc
->nr_channels
) {
290 return R300_TX_FORMAT_16F
| result
;
292 return R300_TX_FORMAT_16F_16F
| result
;
294 return R300_TX_FORMAT_16F_16F_16F_16F
| result
;
299 switch (desc
->nr_channels
) {
301 return R300_TX_FORMAT_32F
| result
;
303 return R300_TX_FORMAT_32F_32F
| result
;
305 return R300_TX_FORMAT_32F_32F_32F_32F
| result
;
311 return ~0; /* Unsupported/unknown. */
314 static uint32_t r500_tx_format_msb_bit(enum pipe_format format
)
317 case PIPE_FORMAT_RGTC1_UNORM
:
318 case PIPE_FORMAT_RGTC1_SNORM
:
319 return R500_TXFORMAT_MSB
;
325 /* Buffer formats. */
327 /* Colorbuffer formats. This is the unswizzled format of the RB3D block's
328 * output. For the swizzling of the targets, check the shader's format. */
329 static uint32_t r300_translate_colorformat(enum pipe_format format
)
333 case PIPE_FORMAT_A8_UNORM
:
334 case PIPE_FORMAT_I8_UNORM
:
335 case PIPE_FORMAT_L8_UNORM
:
336 case PIPE_FORMAT_R8_UNORM
:
337 case PIPE_FORMAT_R8_SNORM
:
338 return R300_COLOR_FORMAT_I8
;
340 /* 16-bit buffers. */
341 case PIPE_FORMAT_B5G6R5_UNORM
:
342 return R300_COLOR_FORMAT_RGB565
;
343 case PIPE_FORMAT_B5G5R5A1_UNORM
:
344 case PIPE_FORMAT_B5G5R5X1_UNORM
:
345 return R300_COLOR_FORMAT_ARGB1555
;
346 case PIPE_FORMAT_B4G4R4A4_UNORM
:
347 return R300_COLOR_FORMAT_ARGB4444
;
349 /* 32-bit buffers. */
350 case PIPE_FORMAT_B8G8R8A8_UNORM
:
351 case PIPE_FORMAT_B8G8R8X8_UNORM
:
352 case PIPE_FORMAT_A8R8G8B8_UNORM
:
353 case PIPE_FORMAT_X8R8G8B8_UNORM
:
354 case PIPE_FORMAT_A8B8G8R8_UNORM
:
355 case PIPE_FORMAT_R8G8B8A8_SNORM
:
356 case PIPE_FORMAT_X8B8G8R8_UNORM
:
357 case PIPE_FORMAT_R8SG8SB8UX8U_NORM
:
358 return R300_COLOR_FORMAT_ARGB8888
;
359 case PIPE_FORMAT_R10G10B10A2_UNORM
:
360 return R500_COLOR_FORMAT_ARGB2101010
; /* R5xx-only? */
362 /* 64-bit buffers. */
363 case PIPE_FORMAT_R16G16B16A16_UNORM
:
364 case PIPE_FORMAT_R16G16B16A16_SNORM
:
365 #if defined(ENABLE_FLOAT_TEXTURES)
366 case PIPE_FORMAT_R16G16B16A16_FLOAT
:
368 return R300_COLOR_FORMAT_ARGB16161616
;
370 /* 128-bit buffers. */
371 #if defined(ENABLE_FLOAT_TEXTURES)
372 case PIPE_FORMAT_R32G32B32A32_FLOAT
:
373 return R300_COLOR_FORMAT_ARGB32323232
;
377 case PIPE_FORMAT_UYVY
:
378 return R300_COLOR_FORMAT_YVYU
;
379 case PIPE_FORMAT_YUYV
:
380 return R300_COLOR_FORMAT_VYUY
;
382 return ~0; /* Unsupported. */
386 /* Depthbuffer and stencilbuffer. Thankfully, we only support two flavors. */
387 static uint32_t r300_translate_zsformat(enum pipe_format format
)
390 /* 16-bit depth, no stencil */
391 case PIPE_FORMAT_Z16_UNORM
:
392 return R300_DEPTHFORMAT_16BIT_INT_Z
;
393 /* 24-bit depth, ignored stencil */
394 case PIPE_FORMAT_X8Z24_UNORM
:
395 /* 24-bit depth, 8-bit stencil */
396 case PIPE_FORMAT_S8_USCALED_Z24_UNORM
:
397 return R300_DEPTHFORMAT_24BIT_INT_Z_8BIT_STENCIL
;
399 return ~0; /* Unsupported. */
403 /* Shader output formats. This is essentially the swizzle from the shader
406 * Note that formats are stored from C3 to C0. */
407 static uint32_t r300_translate_out_fmt(enum pipe_format format
)
409 uint32_t modifier
= 0;
411 const struct util_format_description
*desc
;
412 static const uint32_t sign_bit
[4] = {
419 desc
= util_format_description(format
);
421 /* Specifies how the shader output is written to the fog unit. */
422 if (desc
->channel
[0].type
== UTIL_FORMAT_TYPE_FLOAT
) {
423 if (desc
->channel
[0].size
== 32) {
424 modifier
|= R300_US_OUT_FMT_C4_32_FP
;
426 modifier
|= R300_US_OUT_FMT_C4_16_FP
;
429 if (desc
->channel
[0].size
== 16) {
430 modifier
|= R300_US_OUT_FMT_C4_16
;
432 /* C4_8 seems to be used for the formats whose pixel size
434 modifier
|= R300_US_OUT_FMT_C4_8
;
439 for (i
= 0; i
< 4; i
++)
440 if (desc
->channel
[i
].type
== UTIL_FORMAT_TYPE_SIGNED
) {
441 modifier
|= sign_bit
[i
];
444 /* Add swizzles and return. */
447 * COLORFORMAT_I8 stores the C2 component. */
448 case PIPE_FORMAT_A8_UNORM
:
449 return modifier
| R300_C2_SEL_A
;
450 case PIPE_FORMAT_I8_UNORM
:
451 case PIPE_FORMAT_L8_UNORM
:
452 case PIPE_FORMAT_R8_UNORM
:
453 case PIPE_FORMAT_R8_SNORM
:
454 return modifier
| R300_C2_SEL_R
;
457 case PIPE_FORMAT_B5G6R5_UNORM
:
458 case PIPE_FORMAT_B5G5R5A1_UNORM
:
459 case PIPE_FORMAT_B5G5R5X1_UNORM
:
460 case PIPE_FORMAT_B4G4R4A4_UNORM
:
461 case PIPE_FORMAT_B8G8R8A8_UNORM
:
462 case PIPE_FORMAT_B8G8R8X8_UNORM
:
464 R300_C0_SEL_B
| R300_C1_SEL_G
|
465 R300_C2_SEL_R
| R300_C3_SEL_A
;
468 case PIPE_FORMAT_A8R8G8B8_UNORM
:
469 case PIPE_FORMAT_X8R8G8B8_UNORM
:
471 R300_C0_SEL_A
| R300_C1_SEL_R
|
472 R300_C2_SEL_G
| R300_C3_SEL_B
;
475 case PIPE_FORMAT_A8B8G8R8_UNORM
:
476 case PIPE_FORMAT_X8B8G8R8_UNORM
:
478 R300_C0_SEL_A
| R300_C1_SEL_B
|
479 R300_C2_SEL_G
| R300_C3_SEL_R
;
482 case PIPE_FORMAT_R8G8B8A8_SNORM
:
483 case PIPE_FORMAT_R8SG8SB8UX8U_NORM
:
484 case PIPE_FORMAT_R10G10B10A2_UNORM
:
485 case PIPE_FORMAT_R16G16B16A16_UNORM
:
486 case PIPE_FORMAT_R16G16B16A16_SNORM
:
487 //case PIPE_FORMAT_R16G16B16A16_FLOAT: /* not in pipe_format */
488 case PIPE_FORMAT_R32G32B32A32_FLOAT
:
490 R300_C0_SEL_R
| R300_C1_SEL_G
|
491 R300_C2_SEL_B
| R300_C3_SEL_A
;
494 return ~0; /* Unsupported. */
498 boolean
r300_is_colorbuffer_format_supported(enum pipe_format format
)
500 return r300_translate_colorformat(format
) != ~0 &&
501 r300_translate_out_fmt(format
) != ~0;
504 boolean
r300_is_zs_format_supported(enum pipe_format format
)
506 return r300_translate_zsformat(format
) != ~0;
509 boolean
r300_is_sampler_format_supported(enum pipe_format format
)
511 return r300_translate_texformat(format
) != ~0;
514 static void r300_setup_texture_state(struct r300_screen
* screen
, struct r300_texture
* tex
)
516 struct r300_texture_format_state
* state
= &tex
->state
;
517 struct pipe_texture
*pt
= &tex
->tex
;
519 boolean is_r500
= screen
->caps
->is_r500
;
521 /* Set sampler state. */
522 state
->format0
= R300_TX_WIDTH((pt
->width0
- 1) & 0x7ff) |
523 R300_TX_HEIGHT((pt
->height0
- 1) & 0x7ff);
526 /* rectangles love this */
527 state
->format0
|= R300_TX_PITCH_EN
;
528 state
->format2
= (tex
->pitch
[0] - 1) & 0x1fff;
530 /* power of two textures (3D, mipmaps, and no pitch) */
531 state
->format0
|= R300_TX_DEPTH(util_logbase2(pt
->depth0
) & 0xf);
534 state
->format1
= r300_translate_texformat(pt
->format
);
535 if (pt
->target
== PIPE_TEXTURE_CUBE
) {
536 state
->format1
|= R300_TX_FORMAT_CUBIC_MAP
;
538 if (pt
->target
== PIPE_TEXTURE_3D
) {
539 state
->format1
|= R300_TX_FORMAT_3D
;
542 /* large textures on r500 */
545 if (pt
->width0
> 2048) {
546 state
->format2
|= R500_TXWIDTH_BIT11
;
548 if (pt
->height0
> 2048) {
549 state
->format2
|= R500_TXHEIGHT_BIT11
;
551 state
->format2
|= r500_tx_format_msb_bit(pt
->format
);
554 SCREEN_DBG(screen
, DBG_TEX
, "r300: Set texture state (%dx%d, %d levels)\n",
555 pt
->width0
, pt
->height0
, pt
->last_level
);
557 /* Set framebuffer state. */
558 if (util_format_is_depth_or_stencil(tex
->tex
.format
)) {
559 for (i
= 0; i
<= tex
->tex
.last_level
; i
++) {
560 tex
->fb_state
.depthpitch
[i
] =
562 R300_DEPTHMACROTILE(tex
->mip_macrotile
[i
]) |
563 R300_DEPTHMICROTILE(tex
->microtile
);
565 tex
->fb_state
.zb_format
= r300_translate_zsformat(tex
->tex
.format
);
567 for (i
= 0; i
<= tex
->tex
.last_level
; i
++) {
568 tex
->fb_state
.colorpitch
[i
] =
570 r300_translate_colorformat(tex
->tex
.format
) |
571 R300_COLOR_TILE(tex
->mip_macrotile
[i
]) |
572 R300_COLOR_MICROTILE(tex
->microtile
);
574 tex
->fb_state
.us_out_fmt
= r300_translate_out_fmt(tex
->tex
.format
);
578 void r300_texture_reinterpret_format(struct pipe_screen
*screen
,
579 struct pipe_texture
*tex
,
580 enum pipe_format new_format
)
582 struct r300_screen
*r300screen
= r300_screen(screen
);
584 SCREEN_DBG(r300screen
, DBG_TEX
, "r300: Reinterpreting format: %s -> %s\n",
585 util_format_name(tex
->format
), util_format_name(new_format
));
587 tex
->format
= new_format
;
589 r300_setup_texture_state(r300_screen(screen
), (struct r300_texture
*)tex
);
592 unsigned r300_texture_get_offset(struct r300_texture
* tex
, unsigned level
,
593 unsigned zslice
, unsigned face
)
595 unsigned offset
= tex
->offset
[level
];
597 switch (tex
->tex
.target
) {
598 case PIPE_TEXTURE_3D
:
600 return offset
+ zslice
* tex
->layer_size
[level
];
602 case PIPE_TEXTURE_CUBE
:
604 return offset
+ face
* tex
->layer_size
[level
];
607 assert(zslice
== 0 && face
== 0);
613 * Return the width (dim==TILE_WIDTH) or height (dim==TILE_HEIGHT) of one tile
614 * of the given texture.
616 static unsigned r300_texture_get_tile_size(struct r300_texture
* tex
,
617 int dim
, boolean macrotile
)
619 unsigned pixsize
, tile_size
;
621 pixsize
= util_format_get_blocksize(tex
->tex
.format
);
622 tile_size
= microblock_table
[util_logbase2(pixsize
)][tex
->microtile
][dim
];
632 /* Return true if macrotiling should be enabled on the miplevel. */
633 static boolean
r300_texture_macro_switch(struct r300_texture
*tex
,
638 unsigned tile
, texdim
;
640 tile
= r300_texture_get_tile_size(tex
, dim
, TRUE
);
641 if (dim
== TILE_WIDTH
) {
642 texdim
= u_minify(tex
->tex
.width0
, level
);
644 texdim
= u_minify(tex
->tex
.height0
, level
);
647 /* See TX_FILTER1_n.MACRO_SWITCH. */
649 return texdim
>= tile
;
651 return texdim
> tile
;
656 * Return the stride, in bytes, of the texture images of the given texture
657 * at the given level.
659 unsigned r300_texture_get_stride(struct r300_screen
* screen
,
660 struct r300_texture
* tex
, unsigned level
)
662 unsigned tile_width
, width
;
664 if (tex
->stride_override
)
665 return tex
->stride_override
;
667 /* Check the level. */
668 if (level
> tex
->tex
.last_level
) {
669 SCREEN_DBG(screen
, DBG_TEX
, "%s: level (%u) > last_level (%u)\n",
670 __FUNCTION__
, level
, tex
->tex
.last_level
);
674 width
= u_minify(tex
->tex
.width0
, level
);
676 if (r300_format_is_plain(tex
->tex
.format
)) {
677 tile_width
= r300_texture_get_tile_size(tex
, TILE_WIDTH
,
678 tex
->mip_macrotile
[level
]);
679 width
= align(width
, tile_width
);
681 return util_format_get_stride(tex
->tex
.format
, width
);
683 return align(util_format_get_stride(tex
->tex
.format
, width
), 32);
687 static unsigned r300_texture_get_nblocksy(struct r300_texture
* tex
,
690 unsigned height
, tile_height
;
692 height
= u_minify(tex
->tex
.height0
, level
);
694 if (r300_format_is_plain(tex
->tex
.format
)) {
695 tile_height
= r300_texture_get_tile_size(tex
, TILE_HEIGHT
,
696 tex
->mip_macrotile
[level
]);
697 height
= align(height
, tile_height
);
700 return util_format_get_nblocksy(tex
->tex
.format
, height
);
703 static void r300_setup_miptree(struct r300_screen
* screen
,
704 struct r300_texture
* tex
)
706 struct pipe_texture
* base
= &tex
->tex
;
707 unsigned stride
, size
, layer_size
, nblocksy
, i
;
708 boolean rv350_mode
= screen
->caps
->family
>= CHIP_FAMILY_RV350
;
710 SCREEN_DBG(screen
, DBG_TEX
, "r300: Making miptree for texture, format %s\n",
711 util_format_name(base
->format
));
713 for (i
= 0; i
<= base
->last_level
; i
++) {
714 /* Let's see if this miplevel can be macrotiled. */
715 tex
->mip_macrotile
[i
] =
716 (tex
->macrotile
== R300_BUFFER_TILED
&&
717 r300_texture_macro_switch(tex
, i
, rv350_mode
, TILE_WIDTH
) &&
718 r300_texture_macro_switch(tex
, i
, rv350_mode
, TILE_HEIGHT
)) ?
719 R300_BUFFER_TILED
: R300_BUFFER_LINEAR
;
721 stride
= r300_texture_get_stride(screen
, tex
, i
);
722 nblocksy
= r300_texture_get_nblocksy(tex
, i
);
723 layer_size
= stride
* nblocksy
;
725 if (base
->target
== PIPE_TEXTURE_CUBE
)
726 size
= layer_size
* 6;
728 size
= layer_size
* u_minify(base
->depth0
, i
);
730 tex
->offset
[i
] = tex
->size
;
731 tex
->size
= tex
->offset
[i
] + size
;
732 tex
->layer_size
[i
] = layer_size
;
733 tex
->pitch
[i
] = stride
/ util_format_get_blocksize(base
->format
);
735 SCREEN_DBG(screen
, DBG_TEX
, "r300: Texture miptree: Level %d "
736 "(%dx%dx%d px, pitch %d bytes) %d bytes total, macrotiled %s\n",
737 i
, u_minify(base
->width0
, i
), u_minify(base
->height0
, i
),
738 u_minify(base
->depth0
, i
), stride
, tex
->size
,
739 tex
->mip_macrotile
[i
] ? "TRUE" : "FALSE");
743 static void r300_setup_flags(struct r300_texture
* tex
)
745 tex
->is_npot
= !util_is_power_of_two(tex
->tex
.width0
) ||
746 !util_is_power_of_two(tex
->tex
.height0
);
749 static void r300_setup_tiling(struct pipe_screen
*screen
,
750 struct r300_texture
*tex
)
752 struct r300_winsys_screen
*rws
= (struct r300_winsys_screen
*)screen
->winsys
;
753 enum pipe_format format
= tex
->tex
.format
;
754 boolean rv350_mode
= r300_screen(screen
)->caps
->family
>= CHIP_FAMILY_RV350
;
756 if (!r300_format_is_plain(format
)) {
760 if (tex
->tex
.width0
== 1 ||
761 tex
->tex
.height0
== 1) {
765 /* Set microtiling. */
766 switch (util_format_get_blocksize(format
)) {
769 tex
->microtile
= R300_BUFFER_TILED
;
774 if (rws
->get_value(rws
, R300_VID_SQUARE_TILING_SUPPORT
)) {
775 tex
->microtile
= R300_BUFFER_SQUARETILED
;
780 /* Set macrotiling. */
781 if (r300_texture_macro_switch(tex
, 0, rv350_mode
, TILE_WIDTH
) &&
782 r300_texture_macro_switch(tex
, 0, rv350_mode
, TILE_HEIGHT
)) {
783 tex
->macrotile
= R300_BUFFER_TILED
;
787 /* Create a new texture. */
788 static struct pipe_texture
* r300_texture_create(struct pipe_screen
* screen
,
789 const struct pipe_texture
* template)
791 struct r300_texture
* tex
= CALLOC_STRUCT(r300_texture
);
792 struct r300_screen
* rscreen
= r300_screen(screen
);
793 struct r300_winsys_screen
*rws
= (struct r300_winsys_screen
*)screen
->winsys
;
799 tex
->tex
= *template;
800 pipe_reference_init(&tex
->tex
.reference
, 1);
801 tex
->tex
.screen
= screen
;
803 r300_setup_flags(tex
);
804 if (!(template->tex_usage
& R300_TEXTURE_USAGE_TRANSFER
)) {
805 r300_setup_tiling(screen
, tex
);
807 r300_setup_miptree(rscreen
, tex
);
808 r300_setup_texture_state(rscreen
, tex
);
810 tex
->buffer
= rws
->buffer_create(rws
, 2048,
811 PIPE_BUFFER_USAGE_PIXEL
,
813 rws
->buffer_set_tiling(rws
, tex
->buffer
,
823 return (struct pipe_texture
*)tex
;
826 static void r300_texture_destroy(struct pipe_texture
* texture
)
828 struct r300_texture
* tex
= (struct r300_texture
*)texture
;
829 struct r300_winsys_screen
*rws
= (struct r300_winsys_screen
*)texture
->screen
->winsys
;
831 rws
->buffer_reference(rws
, &tex
->buffer
, NULL
);
835 static struct pipe_surface
* r300_get_tex_surface(struct pipe_screen
* screen
,
836 struct pipe_texture
* texture
,
842 struct r300_texture
* tex
= (struct r300_texture
*)texture
;
843 struct pipe_surface
* surface
= CALLOC_STRUCT(pipe_surface
);
846 offset
= r300_texture_get_offset(tex
, level
, zslice
, face
);
849 pipe_reference_init(&surface
->reference
, 1);
850 pipe_texture_reference(&surface
->texture
, texture
);
851 surface
->format
= texture
->format
;
852 surface
->width
= u_minify(texture
->width0
, level
);
853 surface
->height
= u_minify(texture
->height0
, level
);
854 surface
->offset
= offset
;
855 surface
->usage
= flags
;
856 surface
->zslice
= zslice
;
857 surface
->texture
= texture
;
858 surface
->face
= face
;
859 surface
->level
= level
;
865 static void r300_tex_surface_destroy(struct pipe_surface
* s
)
867 pipe_texture_reference(&s
->texture
, NULL
);
872 static struct pipe_texture
*
873 r300_texture_from_handle(struct pipe_screen
* screen
,
874 const struct pipe_texture
* base
,
875 struct winsys_handle
*whandle
)
877 struct r300_winsys_screen
*rws
= (struct r300_winsys_screen
*)screen
->winsys
;
878 struct r300_screen
* rscreen
= r300_screen(screen
);
879 struct r300_winsys_buffer
*buffer
;
880 struct r300_texture
* tex
;
883 /* Support only 2D textures without mipmaps */
884 if (base
->target
!= PIPE_TEXTURE_2D
||
886 base
->last_level
!= 0) {
890 buffer
= rws
->buffer_from_handle(rws
, screen
, whandle
, &stride
);
895 tex
= CALLOC_STRUCT(r300_texture
);
901 pipe_reference_init(&tex
->tex
.reference
, 1);
902 tex
->tex
.screen
= screen
;
904 tex
->stride_override
= stride
;
905 tex
->pitch
[0] = stride
/ util_format_get_blocksize(base
->format
);
907 r300_setup_flags(tex
);
908 r300_setup_texture_state(rscreen
, tex
);
910 /* one ref already taken */
911 tex
->buffer
= buffer
;
913 return (struct pipe_texture
*)tex
;
917 r300_texture_get_handle(struct pipe_screen
* screen
,
918 struct pipe_texture
*texture
,
919 struct winsys_handle
*whandle
)
921 struct r300_winsys_screen
*rws
= (struct r300_winsys_screen
*)screen
->winsys
;
922 struct r300_texture
* tex
= (struct r300_texture
*)texture
;
929 stride
= r300_texture_get_stride(r300_screen(screen
), tex
, 0);
931 rws
->buffer_get_handle(rws
, tex
->buffer
, stride
, whandle
);
936 static struct pipe_video_surface
*
937 r300_video_surface_create(struct pipe_screen
*screen
,
938 enum pipe_video_chroma_format chroma_format
,
939 unsigned width
, unsigned height
)
941 struct r300_video_surface
*r300_vsfc
;
942 struct pipe_texture
template;
945 assert(width
&& height
);
947 r300_vsfc
= CALLOC_STRUCT(r300_video_surface
);
951 pipe_reference_init(&r300_vsfc
->base
.reference
, 1);
952 r300_vsfc
->base
.screen
= screen
;
953 r300_vsfc
->base
.chroma_format
= chroma_format
;
954 r300_vsfc
->base
.width
= width
;
955 r300_vsfc
->base
.height
= height
;
957 memset(&template, 0, sizeof(struct pipe_texture
));
958 template.target
= PIPE_TEXTURE_2D
;
959 template.format
= PIPE_FORMAT_B8G8R8X8_UNORM
;
960 template.last_level
= 0;
961 template.width0
= util_next_power_of_two(width
);
962 template.height0
= util_next_power_of_two(height
);
964 template.tex_usage
= PIPE_TEXTURE_USAGE_SAMPLER
|
965 PIPE_TEXTURE_USAGE_RENDER_TARGET
;
967 r300_vsfc
->tex
= screen
->texture_create(screen
, &template);
974 return &r300_vsfc
->base
;
977 static void r300_video_surface_destroy(struct pipe_video_surface
*vsfc
)
979 struct r300_video_surface
*r300_vsfc
= r300_video_surface(vsfc
);
980 pipe_texture_reference(&r300_vsfc
->tex
, NULL
);
984 void r300_init_screen_texture_functions(struct pipe_screen
* screen
)
986 screen
->texture_create
= r300_texture_create
;
987 screen
->texture_from_handle
= r300_texture_from_handle
;
988 screen
->texture_get_handle
= r300_texture_get_handle
;
989 screen
->texture_destroy
= r300_texture_destroy
;
990 screen
->get_tex_surface
= r300_get_tex_surface
;
991 screen
->tex_surface_destroy
= r300_tex_surface_destroy
;
993 screen
->video_surface_create
= r300_video_surface_create
;
994 screen
->video_surface_destroy
= r300_video_surface_destroy
;
997 boolean
r300_get_texture_buffer(struct pipe_screen
* screen
,
998 struct pipe_texture
* texture
,
999 struct r300_winsys_buffer
** buffer
,
1002 struct r300_texture
* tex
= (struct r300_texture
*)texture
;
1003 struct r300_winsys_screen
*rws
= (struct r300_winsys_screen
*)screen
->winsys
;
1004 struct r300_winsys_buffer
*buf
;
1010 rws
->buffer_reference(rws
, &buf
, tex
->buffer
);
1013 *stride
= r300_texture_get_stride(r300_screen(screen
), tex
, 0);