2 * Copyright (C) 2009 Maciej Cencora.
3 * Copyright (C) 2008 Nicolai Haehnle.
7 * Permission is hereby granted, free of charge, to any person obtaining
8 * a copy of this software and associated documentation files (the
9 * "Software"), to deal in the Software without restriction, including
10 * without limitation the rights to use, copy, modify, merge, publish,
11 * distribute, sublicense, and/or sell copies of the Software, and to
12 * permit persons to whom the Software is furnished to do so, subject to
13 * the following conditions:
15 * The above copyright notice and this permission notice (including the
16 * next paragraph) shall be included in all copies or substantial
17 * portions of the Software.
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
20 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
22 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
23 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
24 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
25 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
29 #include "radeon_mipmap_tree.h"
34 #include "main/simple_list.h"
35 #include "main/texcompress.h"
36 #include "main/teximage.h"
37 #include "main/texobj.h"
38 #include "radeon_texture.h"
40 static unsigned get_aligned_compressed_row_stride(
45 const unsigned blockSize
= _mesa_get_format_bytes(format
);
46 unsigned blockWidth
, blockHeight
, numXBlocks
;
48 _mesa_get_format_block_size(format
, &blockWidth
, &blockHeight
);
49 numXBlocks
= (width
+ blockWidth
- 1) / blockWidth
;
51 while (numXBlocks
* blockSize
< minStride
)
56 return numXBlocks
* blockSize
;
59 static unsigned get_compressed_image_size(
64 unsigned blockWidth
, blockHeight
;
66 _mesa_get_format_block_size(format
, &blockWidth
, &blockHeight
);
68 return rowStride
* ((height
+ blockHeight
- 1) / blockHeight
);
71 static int find_next_power_of_two(GLuint value
)
85 * Compute sizes and fill in offset and blit information for the given
86 * image (determined by \p face and \p level).
88 * \param curOffset points to the offset at which the image is to be stored
89 * and is updated by this function according to the size of the image.
91 static void compute_tex_image_offset(radeonContextPtr rmesa
, radeon_mipmap_tree
*mt
,
92 GLuint face
, GLuint level
, GLuint
* curOffset
)
94 radeon_mipmap_level
*lvl
= &mt
->levels
[level
];
98 height
= find_next_power_of_two(lvl
->height
);
100 /* Find image size in bytes */
101 if (_mesa_is_format_compressed(mt
->mesaFormat
)) {
102 lvl
->rowstride
= get_aligned_compressed_row_stride(mt
->mesaFormat
, lvl
->width
, rmesa
->texture_compressed_row_align
);
103 lvl
->size
= get_compressed_image_size(mt
->mesaFormat
, lvl
->rowstride
, height
);
104 } else if (mt
->target
== GL_TEXTURE_RECTANGLE_NV
) {
105 row_align
= rmesa
->texture_rect_row_align
- 1;
106 lvl
->rowstride
= (_mesa_format_row_stride(mt
->mesaFormat
, lvl
->width
) + row_align
) & ~row_align
;
107 lvl
->size
= lvl
->rowstride
* height
;
108 } else if (mt
->tilebits
& RADEON_TXO_MICRO_TILE
) {
109 /* tile pattern is 16 bytes x2. mipmaps stay 32 byte aligned,
110 * though the actual offset may be different (if texture is less than
111 * 32 bytes width) to the untiled case */
112 lvl
->rowstride
= (_mesa_format_row_stride(mt
->mesaFormat
, lvl
->width
) * 2 + 31) & ~31;
113 lvl
->size
= lvl
->rowstride
* ((height
+ 1) / 2) * lvl
->depth
;
115 row_align
= rmesa
->texture_row_align
- 1;
116 lvl
->rowstride
= (_mesa_format_row_stride(mt
->mesaFormat
, lvl
->width
) + row_align
) & ~row_align
;
117 lvl
->size
= lvl
->rowstride
* height
* lvl
->depth
;
119 assert(lvl
->size
> 0);
121 /* All images are aligned to a 32-byte offset */
122 *curOffset
= (*curOffset
+ 0x1f) & ~0x1f;
123 lvl
->faces
[face
].offset
= *curOffset
;
124 *curOffset
+= lvl
->size
;
126 if (RADEON_DEBUG
& RADEON_TEXTURE
)
128 "level %d, face %d: rs:%d %dx%d at %d\n",
129 level
, face
, lvl
->rowstride
, lvl
->width
, height
, lvl
->faces
[face
].offset
);
132 static GLuint
minify(GLuint size
, GLuint levels
)
134 size
= size
>> levels
;
141 static void calculate_miptree_layout_r100(radeonContextPtr rmesa
, radeon_mipmap_tree
*mt
)
143 GLuint curOffset
, i
, face
, level
;
145 assert(mt
->numLevels
<= rmesa
->glCtx
->Const
.MaxTextureLevels
);
148 for(face
= 0; face
< mt
->faces
; face
++) {
150 for(i
= 0, level
= mt
->baseLevel
; i
< mt
->numLevels
; i
++, level
++) {
151 mt
->levels
[level
].valid
= 1;
152 mt
->levels
[level
].width
= minify(mt
->width0
, i
);
153 mt
->levels
[level
].height
= minify(mt
->height0
, i
);
154 mt
->levels
[level
].depth
= minify(mt
->depth0
, i
);
155 compute_tex_image_offset(rmesa
, mt
, face
, level
, &curOffset
);
159 /* Note the required size in memory */
160 mt
->totalsize
= (curOffset
+ RADEON_OFFSET_MASK
) & ~RADEON_OFFSET_MASK
;
163 static void calculate_miptree_layout_r300(radeonContextPtr rmesa
, radeon_mipmap_tree
*mt
)
165 GLuint curOffset
, i
, level
;
167 assert(mt
->numLevels
<= rmesa
->glCtx
->Const
.MaxTextureLevels
);
170 for(i
= 0, level
= mt
->baseLevel
; i
< mt
->numLevels
; i
++, level
++) {
173 mt
->levels
[level
].valid
= 1;
174 mt
->levels
[level
].width
= minify(mt
->width0
, i
);
175 mt
->levels
[level
].height
= minify(mt
->height0
, i
);
176 mt
->levels
[level
].depth
= minify(mt
->depth0
, i
);
178 for(face
= 0; face
< mt
->faces
; face
++)
179 compute_tex_image_offset(rmesa
, mt
, face
, level
, &curOffset
);
182 /* Note the required size in memory */
183 mt
->totalsize
= (curOffset
+ RADEON_OFFSET_MASK
) & ~RADEON_OFFSET_MASK
;
187 * Create a new mipmap tree, calculate its layout and allocate memory.
189 static radeon_mipmap_tree
* radeon_miptree_create(radeonContextPtr rmesa
,
190 GLenum target
, gl_format mesaFormat
, GLuint baseLevel
, GLuint numLevels
,
191 GLuint width0
, GLuint height0
, GLuint depth0
, GLuint tilebits
)
193 radeon_mipmap_tree
*mt
= CALLOC_STRUCT(_radeon_mipmap_tree
);
195 mt
->mesaFormat
= mesaFormat
;
198 mt
->faces
= (target
== GL_TEXTURE_CUBE_MAP
) ? 6 : 1;
199 mt
->baseLevel
= baseLevel
;
200 mt
->numLevels
= numLevels
;
202 mt
->height0
= height0
;
204 mt
->tilebits
= tilebits
;
206 if (rmesa
->radeonScreen
->chip_family
>= CHIP_FAMILY_R300
)
207 calculate_miptree_layout_r300(rmesa
, mt
);
209 calculate_miptree_layout_r100(rmesa
, mt
);
211 mt
->bo
= radeon_bo_open(rmesa
->radeonScreen
->bom
,
212 0, mt
->totalsize
, 1024,
213 RADEON_GEM_DOMAIN_VRAM
,
219 void radeon_miptree_reference(radeon_mipmap_tree
*mt
, radeon_mipmap_tree
**ptr
)
224 assert(mt
->refcount
> 0);
229 void radeon_miptree_unreference(radeon_mipmap_tree
**ptr
)
231 radeon_mipmap_tree
*mt
= *ptr
;
235 assert(mt
->refcount
> 0);
239 radeon_bo_unref(mt
->bo
);
247 * Calculate min and max LOD for the given texture object.
248 * @param[in] tObj texture object whose LOD values to calculate
249 * @param[out] pminLod minimal LOD
250 * @param[out] pmaxLod maximal LOD
252 static void calculate_min_max_lod(struct gl_texture_object
*tObj
,
253 unsigned *pminLod
, unsigned *pmaxLod
)
256 /* Yes, this looks overly complicated, but it's all needed.
258 switch (tObj
->Target
) {
262 case GL_TEXTURE_CUBE_MAP
:
263 if (tObj
->MinFilter
== GL_NEAREST
|| tObj
->MinFilter
== GL_LINEAR
) {
264 /* GL_NEAREST and GL_LINEAR only care about GL_TEXTURE_BASE_LEVEL.
266 minLod
= maxLod
= tObj
->BaseLevel
;
268 minLod
= tObj
->BaseLevel
+ (GLint
)(tObj
->MinLod
);
269 minLod
= MAX2(minLod
, tObj
->BaseLevel
);
270 minLod
= MIN2(minLod
, tObj
->MaxLevel
);
271 maxLod
= tObj
->BaseLevel
+ (GLint
)(tObj
->MaxLod
+ 0.5);
272 maxLod
= MIN2(maxLod
, tObj
->MaxLevel
);
273 maxLod
= MIN2(maxLod
, tObj
->Image
[0][minLod
]->MaxLog2
+ minLod
);
274 maxLod
= MAX2(maxLod
, minLod
); /* need at least one level */
277 case GL_TEXTURE_RECTANGLE_NV
:
278 case GL_TEXTURE_4D_SGIS
:
285 /* save these values */
291 * Checks whether the given miptree can hold the given texture image at the
292 * given face and level.
294 GLboolean
radeon_miptree_matches_image(radeon_mipmap_tree
*mt
,
295 struct gl_texture_image
*texImage
, GLuint face
, GLuint level
)
297 radeon_mipmap_level
*lvl
;
299 if (face
>= mt
->faces
)
302 if (texImage
->TexFormat
!= mt
->mesaFormat
)
305 lvl
= &mt
->levels
[level
];
307 lvl
->width
!= texImage
->Width
||
308 lvl
->height
!= texImage
->Height
||
309 lvl
->depth
!= texImage
->Depth
)
316 * Checks whether the given miptree has the right format to store the given texture object.
318 static GLboolean
radeon_miptree_matches_texture(radeon_mipmap_tree
*mt
, struct gl_texture_object
*texObj
)
320 struct gl_texture_image
*firstImage
;
322 radeon_mipmap_level
*mtBaseLevel
;
324 if (texObj
->BaseLevel
< mt
->baseLevel
)
327 mtBaseLevel
= &mt
->levels
[texObj
->BaseLevel
- mt
->baseLevel
];
328 firstImage
= texObj
->Image
[0][texObj
->BaseLevel
];
329 numLevels
= MIN2(texObj
->MaxLevel
- texObj
->BaseLevel
+ 1, firstImage
->MaxLog2
+ 1);
331 if (RADEON_DEBUG
& RADEON_TEXTURE
) {
332 fprintf(stderr
, "Checking if miptree %p matches texObj %p\n", mt
, texObj
);
333 fprintf(stderr
, "target %d vs %d\n", mt
->target
, texObj
->Target
);
334 fprintf(stderr
, "format %d vs %d\n", mt
->mesaFormat
, firstImage
->TexFormat
);
335 fprintf(stderr
, "numLevels %d vs %d\n", mt
->numLevels
, numLevels
);
336 fprintf(stderr
, "width0 %d vs %d\n", mtBaseLevel
->width
, firstImage
->Width
);
337 fprintf(stderr
, "height0 %d vs %d\n", mtBaseLevel
->height
, firstImage
->Height
);
338 fprintf(stderr
, "depth0 %d vs %d\n", mtBaseLevel
->depth
, firstImage
->Depth
);
339 if (mt
->target
== texObj
->Target
&&
340 mt
->mesaFormat
== firstImage
->TexFormat
&&
341 mt
->numLevels
>= numLevels
&&
342 mtBaseLevel
->width
== firstImage
->Width
&&
343 mtBaseLevel
->height
== firstImage
->Height
&&
344 mtBaseLevel
->depth
== firstImage
->Depth
) {
345 fprintf(stderr
, "MATCHED\n");
347 fprintf(stderr
, "NOT MATCHED\n");
351 return (mt
->target
== texObj
->Target
&&
352 mt
->mesaFormat
== firstImage
->TexFormat
&&
353 mt
->numLevels
>= numLevels
&&
354 mtBaseLevel
->width
== firstImage
->Width
&&
355 mtBaseLevel
->height
== firstImage
->Height
&&
356 mtBaseLevel
->depth
== firstImage
->Depth
);
360 * Try to allocate a mipmap tree for the given texture object.
361 * @param[in] rmesa radeon context
362 * @param[in] t radeon texture object
364 void radeon_try_alloc_miptree(radeonContextPtr rmesa
, radeonTexObj
*t
)
366 struct gl_texture_object
*texObj
= &t
->base
;
367 struct gl_texture_image
*texImg
= texObj
->Image
[0][texObj
->BaseLevel
];
375 numLevels
= MIN2(texObj
->MaxLevel
- texObj
->BaseLevel
+ 1, texImg
->MaxLog2
+ 1);
377 t
->mt
= radeon_miptree_create(rmesa
, t
->base
.Target
,
378 texImg
->TexFormat
, texObj
->BaseLevel
,
379 numLevels
, texImg
->Width
, texImg
->Height
,
380 texImg
->Depth
, t
->tile_bits
);
383 /* Although we use the image_offset[] array to store relative offsets
384 * to cube faces, Mesa doesn't know anything about this and expects
385 * each cube face to be treated as a separate image.
387 * These functions present that view to mesa:
390 radeon_miptree_depth_offsets(radeon_mipmap_tree
*mt
, GLuint level
, GLuint
*offsets
)
392 if (mt
->target
!= GL_TEXTURE_3D
|| mt
->faces
== 1) {
396 for (i
= 0; i
< 6; i
++) {
397 offsets
[i
] = mt
->levels
[level
].faces
[i
].offset
;
403 radeon_miptree_image_offset(radeon_mipmap_tree
*mt
,
404 GLuint face
, GLuint level
)
406 if (mt
->target
== GL_TEXTURE_CUBE_MAP_ARB
)
407 return (mt
->levels
[level
].faces
[face
].offset
);
409 return mt
->levels
[level
].faces
[0].offset
;
413 * Ensure that the given image is stored in the given miptree from now on.
415 static void migrate_image_to_miptree(radeon_mipmap_tree
*mt
,
416 radeon_texture_image
*image
,
419 radeon_mipmap_level
*dstlvl
= &mt
->levels
[level
];
422 assert(image
->mt
!= mt
);
423 assert(dstlvl
->valid
);
424 assert(dstlvl
->width
== image
->base
.Width
);
425 assert(dstlvl
->height
== image
->base
.Height
);
426 assert(dstlvl
->depth
== image
->base
.Depth
);
428 radeon_bo_map(mt
->bo
, GL_TRUE
);
429 dest
= mt
->bo
->ptr
+ dstlvl
->faces
[face
].offset
;
432 /* Format etc. should match, so we really just need a memcpy().
433 * In fact, that memcpy() could be done by the hardware in many
434 * cases, provided that we have a proper memory manager.
436 assert(mt
->mesaFormat
== image
->base
.TexFormat
);
438 radeon_mipmap_level
*srclvl
= &image
->mt
->levels
[image
->mtlevel
];
440 /* TODO: bring back these assertions once the FBOs are fixed */
442 assert(image
->mtlevel
== level
);
443 assert(srclvl
->size
== dstlvl
->size
);
444 assert(srclvl
->rowstride
== dstlvl
->rowstride
);
447 radeon_bo_map(image
->mt
->bo
, GL_FALSE
);
450 image
->mt
->bo
->ptr
+ srclvl
->faces
[face
].offset
,
452 radeon_bo_unmap(image
->mt
->bo
);
454 radeon_miptree_unreference(&image
->mt
);
455 } else if (image
->base
.Data
) {
456 /* This condition should be removed, it's here to workaround
457 * a segfault when mapping textures during software fallbacks.
459 const uint32_t srcrowstride
= _mesa_format_row_stride(image
->base
.TexFormat
, image
->base
.Width
);
460 uint32_t rows
= image
->base
.Height
* image
->base
.Depth
;
462 if (_mesa_is_format_compressed(image
->base
.TexFormat
)) {
463 uint32_t blockWidth
, blockHeight
;
464 _mesa_get_format_block_size(image
->base
.TexFormat
, &blockWidth
, &blockHeight
);
465 rows
= (rows
+ blockHeight
- 1) / blockHeight
;
468 copy_rows(dest
, dstlvl
->rowstride
, image
->base
.Data
, srcrowstride
,
471 _mesa_free_texmemory(image
->base
.Data
);
472 image
->base
.Data
= 0;
475 radeon_bo_unmap(mt
->bo
);
477 radeon_miptree_reference(mt
, &image
->mt
);
478 image
->mtface
= face
;
479 image
->mtlevel
= level
;
483 * Filter matching miptrees, and select one with the most of data.
484 * @param[in] texObj radeon texture object
485 * @param[in] firstLevel first texture level to check
486 * @param[in] lastLevel last texture level to check
488 static radeon_mipmap_tree
* get_biggest_matching_miptree(radeonTexObj
*texObj
,
492 const unsigned numLevels
= lastLevel
- firstLevel
+ 1;
493 unsigned *mtSizes
= calloc(numLevels
, sizeof(unsigned));
494 radeon_mipmap_tree
**mts
= calloc(numLevels
, sizeof(radeon_mipmap_tree
*));
495 unsigned mtCount
= 0;
496 unsigned maxMtIndex
= 0;
497 radeon_mipmap_tree
*tmp
;
499 for (unsigned level
= firstLevel
; level
<= lastLevel
; ++level
) {
500 radeon_texture_image
*img
= get_radeon_texture_image(texObj
->base
.Image
[0][level
]);
502 // TODO: why this hack??
509 for (int i
= 0; i
< mtCount
; ++i
) {
510 if (mts
[i
] == img
->mt
) {
512 mtSizes
[i
] += img
->mt
->levels
[img
->mtlevel
].size
;
517 if (!found
&& radeon_miptree_matches_texture(img
->mt
, &texObj
->base
)) {
518 mtSizes
[mtCount
] = img
->mt
->levels
[img
->mtlevel
].size
;
519 mts
[mtCount
] = img
->mt
;
528 for (int i
= 1; i
< mtCount
; ++i
) {
529 if (mtSizes
[i
] > mtSizes
[maxMtIndex
]) {
534 tmp
= mts
[maxMtIndex
];
542 * Validate texture mipmap tree.
543 * If individual images are stored in different mipmap trees
544 * use the mipmap tree that has the most of the correct data.
546 int radeon_validate_texture_miptree(GLcontext
* ctx
, struct gl_texture_object
*texObj
)
548 radeonContextPtr rmesa
= RADEON_CONTEXT(ctx
);
549 radeonTexObj
*t
= radeon_tex_obj(texObj
);
551 if (t
->validated
|| t
->image_override
) {
555 if (texObj
->Image
[0][texObj
->BaseLevel
]->Border
> 0)
558 _mesa_test_texobj_completeness(rmesa
->glCtx
, texObj
);
559 if (!texObj
->_Complete
) {
563 calculate_min_max_lod(&t
->base
, &t
->minLod
, &t
->maxLod
);
565 if (RADEON_DEBUG
& RADEON_TEXTURE
)
566 fprintf(stderr
, "%s: Validating texture %p now, minLod = %d, maxLod = %d\n",
567 __FUNCTION__
, texObj
,t
->minLod
, t
->maxLod
);
569 radeon_mipmap_tree
*dst_miptree
;
570 dst_miptree
= get_biggest_matching_miptree(t
, t
->minLod
, t
->maxLod
);
573 radeon_miptree_unreference(&t
->mt
);
574 radeon_try_alloc_miptree(rmesa
, t
);
576 if (RADEON_DEBUG
& RADEON_TEXTURE
) {
577 fprintf(stderr
, "%s: No matching miptree found, allocated new one %p\n", __FUNCTION__
, t
->mt
);
579 } else if (RADEON_DEBUG
& RADEON_TEXTURE
) {
580 fprintf(stderr
, "%s: Using miptree %p\n", __FUNCTION__
, t
->mt
);
583 const unsigned faces
= texObj
->Target
== GL_TEXTURE_CUBE_MAP
? 6 : 1;
584 unsigned face
, level
;
585 radeon_texture_image
*img
;
586 /* Validate only the levels that will actually be used during rendering */
587 for (face
= 0; face
< faces
; ++face
) {
588 for (level
= t
->minLod
; level
<= t
->maxLod
; ++level
) {
589 img
= get_radeon_texture_image(texObj
->Image
[face
][level
]);
591 if (RADEON_DEBUG
& RADEON_TEXTURE
) {
592 fprintf(stderr
, "Checking image level %d, face %d, mt %p ... ", level
, face
, img
->mt
);
595 if (img
->mt
!= dst_miptree
) {
596 if (RADEON_DEBUG
& RADEON_TEXTURE
) {
597 fprintf(stderr
, "MIGRATING\n");
599 struct radeon_bo
*src_bo
= (img
->mt
) ? img
->mt
->bo
: img
->bo
;
600 if (src_bo
&& radeon_bo_is_referenced_by_cs(src_bo
, rmesa
->cmdbuf
.cs
)) {
601 radeon_firevertices(rmesa
);
603 migrate_image_to_miptree(dst_miptree
, img
, face
, level
);
604 } else if (RADEON_DEBUG
& RADEON_TEXTURE
) {
605 fprintf(stderr
, "OK\n");
610 t
->validated
= GL_TRUE
;
615 uint32_t get_base_teximage_offset(radeonTexObj
*texObj
)
620 return radeon_miptree_image_offset(texObj
->mt
, 0, texObj
->minLod
);