2 #include "main/macros.h"
3 #include "main/mtypes.h"
4 #include "main/enums.h"
5 #include "main/bufferobj.h"
6 #include "main/context.h"
7 #include "main/formats.h"
8 #include "main/glformats.h"
9 #include "main/image.h"
11 #include "main/renderbuffer.h"
12 #include "main/texcompress.h"
13 #include "main/texgetimage.h"
14 #include "main/texobj.h"
15 #include "main/teximage.h"
16 #include "main/texstore.h"
18 #include "drivers/common/meta.h"
20 #include "intel_mipmap_tree.h"
21 #include "intel_buffer_objects.h"
22 #include "intel_batchbuffer.h"
23 #include "intel_tex.h"
24 #include "intel_blit.h"
25 #include "intel_fbo.h"
26 #include "intel_image.h"
27 #include "intel_tiled_memcpy.h"
28 #include "brw_context.h"
30 #define FILE_DEBUG_FLAG DEBUG_TEXTURE
32 /* Make sure one doesn't end up shrinking base level zero unnecessarily.
33 * Determining the base level dimension by shifting higher level dimension
34 * ends up in off-by-one value in case base level has NPOT size (for example,
36 * Choose the original base level dimension when shifted dimensions agree.
37 * Otherwise assume real resize is intended and use the new shifted value.
40 get_base_dim(unsigned old_base_dim
, unsigned new_level_dim
, unsigned level
)
42 const unsigned old_level_dim
= old_base_dim
>> level
;
43 const unsigned new_base_dim
= new_level_dim
<< level
;
45 return old_level_dim
== new_level_dim
? old_base_dim
: new_base_dim
;
48 /* Work back from the specified level of the image to the baselevel and create a
49 * miptree of that size.
51 struct intel_mipmap_tree
*
52 intel_miptree_create_for_teximage(struct brw_context
*brw
,
53 struct intel_texture_object
*intelObj
,
54 struct intel_texture_image
*intelImage
,
55 enum intel_miptree_create_flags flags
)
58 int width
, height
, depth
;
59 unsigned old_width
= 0, old_height
= 0, old_depth
= 0;
60 const struct intel_mipmap_tree
*old_mt
= intelObj
->mt
;
61 const unsigned level
= intelImage
->base
.Base
.Level
;
63 intel_get_image_dims(&intelImage
->base
.Base
, &width
, &height
, &depth
);
66 old_width
= old_mt
->surf
.logical_level0_px
.width
;
67 old_height
= old_mt
->surf
.logical_level0_px
.height
;
68 old_depth
= old_mt
->surf
.dim
== ISL_SURF_DIM_3D
?
69 old_mt
->surf
.logical_level0_px
.depth
:
70 old_mt
->surf
.logical_level0_px
.array_len
;
73 DBG("%s\n", __func__
);
75 /* Figure out image dimensions at start level. */
76 switch(intelObj
->base
.Target
) {
77 case GL_TEXTURE_2D_MULTISAMPLE
:
78 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
79 case GL_TEXTURE_RECTANGLE
:
80 case GL_TEXTURE_EXTERNAL_OES
:
84 depth
= old_mt
? get_base_dim(old_depth
, depth
, level
) :
88 case GL_TEXTURE_2D_ARRAY
:
89 case GL_TEXTURE_CUBE_MAP
:
90 case GL_TEXTURE_CUBE_MAP_ARRAY
:
91 height
= old_mt
? get_base_dim(old_height
, height
, level
) :
95 case GL_TEXTURE_1D_ARRAY
:
96 width
= old_mt
? get_base_dim(old_width
, width
, level
) :
100 unreachable("Unexpected target");
103 /* Guess a reasonable value for lastLevel. This is probably going
104 * to be wrong fairly often and might mean that we have to look at
105 * resizable buffers, or require that buffers implement lazy
106 * pagetable arrangements.
108 if ((intelObj
->base
.Sampler
.MinFilter
== GL_NEAREST
||
109 intelObj
->base
.Sampler
.MinFilter
== GL_LINEAR
) &&
110 intelImage
->base
.Base
.Level
== 0 &&
111 !intelObj
->base
.GenerateMipmap
) {
114 lastLevel
= _mesa_get_tex_max_num_levels(intelObj
->base
.Target
,
115 width
, height
, depth
) - 1;
118 return intel_miptree_create(brw
,
119 intelObj
->base
.Target
,
120 intelImage
->base
.Base
.TexFormat
,
126 MAX2(intelImage
->base
.Base
.NumSamples
, 1),
132 * \brief A fast path for glTexImage and glTexSubImage.
134 * This fast path is taken when the texture format is BGRA, RGBA,
135 * A or L and when the texture memory is X- or Y-tiled. It uploads
136 * the texture data by mapping the texture memory without a GTT fence, thus
137 * acquiring a tiled view of the memory, and then copying sucessive
138 * spans within each tile.
140 * This is a performance win over the conventional texture upload path because
141 * it avoids the performance penalty of writing through the write-combine
142 * buffer. In the conventional texture upload path,
143 * texstore.c:store_texsubimage(), the texture memory is mapped through a GTT
144 * fence, thus acquiring a linear view of the memory, then each row in the
145 * image is memcpy'd. In this fast path, we replace each row's copy with
146 * a sequence of copies over each linear span in tile.
148 * One use case is Google Chrome's paint rectangles. Chrome (as
149 * of version 21) renders each page as a tiling of 256x256 GL_BGRA textures.
150 * Each page's content is initially uploaded with glTexImage2D and damaged
151 * regions are updated with glTexSubImage2D. On some workloads, the
152 * performance gain of this fastpath on Sandybridge is over 5x.
155 intel_texsubimage_tiled_memcpy(struct gl_context
* ctx
,
157 struct gl_texture_image
*texImage
,
158 GLint xoffset
, GLint yoffset
, GLint zoffset
,
159 GLsizei width
, GLsizei height
, GLsizei depth
,
160 GLenum format
, GLenum type
,
161 const GLvoid
*pixels
,
162 const struct gl_pixelstore_attrib
*packing
)
164 struct brw_context
*brw
= brw_context(ctx
);
165 const struct gen_device_info
*devinfo
= &brw
->screen
->devinfo
;
166 struct intel_texture_image
*image
= intel_texture_image(texImage
);
169 /* The miptree's buffer. */
173 mem_copy_fn mem_copy
= NULL
;
175 /* This fastpath is restricted to specific texture types:
176 * a 2D BGRA, RGBA, L8 or A8 texture. It could be generalized to support
179 * FINISHME: The restrictions below on packing alignment and packing row
180 * length are likely unneeded now because we calculate the source stride
181 * with _mesa_image_row_stride. However, before removing the restrictions
184 if (!devinfo
->has_llc
||
185 !(type
== GL_UNSIGNED_BYTE
|| type
== GL_UNSIGNED_INT_8_8_8_8_REV
) ||
186 !(texImage
->TexObject
->Target
== GL_TEXTURE_2D
||
187 texImage
->TexObject
->Target
== GL_TEXTURE_RECTANGLE
) ||
189 _mesa_is_bufferobj(packing
->BufferObj
) ||
190 packing
->Alignment
> 4 ||
191 packing
->SkipPixels
> 0 ||
192 packing
->SkipRows
> 0 ||
193 (packing
->RowLength
!= 0 && packing
->RowLength
!= width
) ||
194 packing
->SwapBytes
||
199 /* Only a simple blit, no scale, bias or other mapping. */
200 if (ctx
->_ImageTransferState
)
203 if (!intel_get_memcpy(texImage
->TexFormat
, format
, type
, &mem_copy
, &cpp
))
206 /* If this is a nontrivial texture view, let another path handle it instead. */
207 if (texImage
->TexObject
->MinLayer
)
211 (image
->mt
->surf
.tiling
!= ISL_TILING_X
&&
212 image
->mt
->surf
.tiling
!= ISL_TILING_Y0
)) {
213 /* The algorithm is written only for X- or Y-tiled memory. */
217 /* linear_to_tiled() assumes that if the object is swizzled, it is using
218 * I915_BIT6_SWIZZLE_9_10 for X and I915_BIT6_SWIZZLE_9 for Y. This is only
219 * true on gen5 and above.
221 * The killer on top is that some gen4 have an L-shaped swizzle mode, where
222 * parts of the memory aren't swizzled at all. Userspace just can't handle
225 if (devinfo
->gen
< 5 && brw
->has_swizzling
)
228 int level
= texImage
->Level
+ texImage
->TexObject
->MinLevel
;
230 /* Since we are going to write raw data to the miptree, we need to resolve
231 * any pending fast color clears before we start.
233 assert(image
->mt
->surf
.logical_level0_px
.depth
== 1);
234 assert(image
->mt
->surf
.logical_level0_px
.array_len
== 1);
236 intel_miptree_access_raw(brw
, image
->mt
, level
, 0, true);
240 if (brw_batch_references(&brw
->batch
, bo
)) {
241 perf_debug("Flushing before mapping a referenced bo.\n");
242 intel_batchbuffer_flush(brw
);
245 void *map
= brw_bo_map(brw
, bo
, MAP_WRITE
| MAP_RAW
);
247 DBG("%s: failed to map bo\n", __func__
);
251 src_pitch
= _mesa_image_row_stride(packing
, width
, format
, type
);
253 /* We postponed printing this message until having committed to executing
256 DBG("%s: level=%d offset=(%d,%d) (w,h)=(%d,%d) format=0x%x type=0x%x "
257 "mesa_format=0x%x tiling=%d "
258 "packing=(alignment=%d row_length=%d skip_pixels=%d skip_rows=%d) ",
259 __func__
, texImage
->Level
, xoffset
, yoffset
, width
, height
,
260 format
, type
, texImage
->TexFormat
, image
->mt
->surf
.tiling
,
261 packing
->Alignment
, packing
->RowLength
, packing
->SkipPixels
,
264 /* Adjust x and y offset based on miplevel */
265 unsigned level_x
, level_y
;
266 intel_miptree_get_image_offset(image
->mt
, level
, 0, &level_x
, &level_y
);
271 xoffset
* cpp
, (xoffset
+ width
) * cpp
,
272 yoffset
, yoffset
+ height
,
274 pixels
- (ptrdiff_t) yoffset
* src_pitch
- (ptrdiff_t) xoffset
* cpp
,
275 image
->mt
->surf
.row_pitch
, src_pitch
,
277 image
->mt
->surf
.tiling
,
287 intel_upload_tex(struct gl_context
* ctx
,
289 struct gl_texture_image
*texImage
,
290 GLint xoffset
, GLint yoffset
, GLint zoffset
,
291 GLsizei width
, GLsizei height
, GLsizei depth
,
292 GLenum format
, GLenum type
,
293 const GLvoid
* pixels
,
294 const struct gl_pixelstore_attrib
*packing
)
296 struct intel_mipmap_tree
*mt
= intel_texture_image(texImage
)->mt
;
299 /* Check that there is actually data to store. */
300 if (pixels
== NULL
&& !_mesa_is_bufferobj(packing
->BufferObj
))
303 bool tex_busy
= mt
&& brw_bo_busy(mt
->bo
);
305 if (mt
&& mt
->format
== MESA_FORMAT_S_UINT8
)
306 mt
->r8stencil_needs_update
= true;
308 ok
= _mesa_meta_pbo_TexSubImage(ctx
, dims
, texImage
,
309 xoffset
, yoffset
, zoffset
,
310 width
, height
, depth
, format
, type
,
311 pixels
, tex_busy
, packing
);
315 ok
= intel_texsubimage_tiled_memcpy(ctx
, dims
, texImage
,
316 xoffset
, yoffset
, zoffset
,
317 width
, height
, depth
,
318 format
, type
, pixels
, packing
);
322 _mesa_store_texsubimage(ctx
, dims
, texImage
,
323 xoffset
, yoffset
, zoffset
,
324 width
, height
, depth
,
325 format
, type
, pixels
, packing
);
330 intelTexImage(struct gl_context
* ctx
,
332 struct gl_texture_image
*texImage
,
333 GLenum format
, GLenum type
, const void *pixels
,
334 const struct gl_pixelstore_attrib
*unpack
)
336 DBG("%s mesa_format %s target %s format %s type %s level %d %dx%dx%d\n",
337 __func__
, _mesa_get_format_name(texImage
->TexFormat
),
338 _mesa_enum_to_string(texImage
->TexObject
->Target
),
339 _mesa_enum_to_string(format
), _mesa_enum_to_string(type
),
340 texImage
->Level
, texImage
->Width
, texImage
->Height
, texImage
->Depth
);
342 /* Allocate storage for texture data. */
343 if (!ctx
->Driver
.AllocTextureImageBuffer(ctx
, texImage
)) {
344 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage%uD", dims
);
348 assert(intel_texture_image(texImage
)->mt
);
350 intel_upload_tex(ctx
, dims
, texImage
, 0, 0, 0,
351 texImage
->Width
, texImage
->Height
, texImage
->Depth
,
352 format
, type
, pixels
, unpack
);
357 intelTexSubImage(struct gl_context
* ctx
,
359 struct gl_texture_image
*texImage
,
360 GLint xoffset
, GLint yoffset
, GLint zoffset
,
361 GLsizei width
, GLsizei height
, GLsizei depth
,
362 GLenum format
, GLenum type
,
363 const GLvoid
* pixels
,
364 const struct gl_pixelstore_attrib
*packing
)
366 DBG("%s mesa_format %s target %s format %s type %s level %d %dx%dx%d\n",
367 __func__
, _mesa_get_format_name(texImage
->TexFormat
),
368 _mesa_enum_to_string(texImage
->TexObject
->Target
),
369 _mesa_enum_to_string(format
), _mesa_enum_to_string(type
),
370 texImage
->Level
, texImage
->Width
, texImage
->Height
, texImage
->Depth
);
372 intel_upload_tex(ctx
, dims
, texImage
, xoffset
, yoffset
, zoffset
,
373 width
, height
, depth
, format
, type
, pixels
, packing
);
378 intel_set_texture_image_mt(struct brw_context
*brw
,
379 struct gl_texture_image
*image
,
380 GLenum internal_format
,
381 struct intel_mipmap_tree
*mt
)
384 struct gl_texture_object
*texobj
= image
->TexObject
;
385 struct intel_texture_object
*intel_texobj
= intel_texture_object(texobj
);
386 struct intel_texture_image
*intel_image
= intel_texture_image(image
);
388 _mesa_init_teximage_fields(&brw
->ctx
, image
,
389 mt
->surf
.logical_level0_px
.width
,
390 mt
->surf
.logical_level0_px
.height
, 1,
391 0, internal_format
, mt
->format
);
393 brw
->ctx
.Driver
.FreeTextureImageBuffer(&brw
->ctx
, image
);
395 intel_texobj
->needs_validate
= true;
396 intel_image
->base
.RowStride
= mt
->surf
.row_pitch
/ mt
->cpp
;
397 assert(mt
->surf
.row_pitch
% mt
->cpp
== 0);
399 intel_miptree_reference(&intel_image
->mt
, mt
);
401 /* Immediately validate the image to the object. */
402 intel_miptree_reference(&intel_texobj
->mt
, mt
);
407 intelSetTexBuffer2(__DRIcontext
*pDRICtx
, GLint target
,
408 GLint texture_format
,
409 __DRIdrawable
*dPriv
)
411 struct gl_framebuffer
*fb
= dPriv
->driverPrivate
;
412 struct brw_context
*brw
= pDRICtx
->driverPrivate
;
413 struct gl_context
*ctx
= &brw
->ctx
;
414 struct intel_renderbuffer
*rb
;
415 struct gl_texture_object
*texObj
;
416 struct gl_texture_image
*texImage
;
417 GLenum internal_format
= 0;
419 texObj
= _mesa_get_current_tex_object(ctx
, target
);
424 if (dPriv
->lastStamp
!= dPriv
->dri2
.stamp
||
425 !pDRICtx
->driScreenPriv
->dri2
.useInvalidate
)
426 intel_update_renderbuffers(pDRICtx
, dPriv
);
428 rb
= intel_get_renderbuffer(fb
, BUFFER_FRONT_LEFT
);
429 /* If the miptree isn't set, then intel_update_renderbuffers was unable
430 * to get the BO for the drawable from the window system.
435 if (rb
->mt
->cpp
== 4) {
436 if (texture_format
== __DRI_TEXTURE_FORMAT_RGB
)
437 internal_format
= GL_RGB
;
439 internal_format
= GL_RGBA
;
440 } else if (rb
->mt
->cpp
== 2) {
442 internal_format
= GL_RGB
;
445 intel_miptree_prepare_external(brw
, rb
->mt
);
447 _mesa_lock_texture(&brw
->ctx
, texObj
);
448 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, 0);
449 intel_set_texture_image_mt(brw
, texImage
, internal_format
, rb
->mt
);
450 _mesa_unlock_texture(&brw
->ctx
, texObj
);
454 intel_bind_renderbuffer_tex_image(struct gl_context
*ctx
,
455 struct gl_renderbuffer
*rb
,
456 struct gl_texture_image
*image
)
458 struct intel_renderbuffer
*irb
= intel_renderbuffer(rb
);
459 struct intel_texture_image
*intel_image
= intel_texture_image(image
);
460 struct gl_texture_object
*texobj
= image
->TexObject
;
461 struct intel_texture_object
*intel_texobj
= intel_texture_object(texobj
);
463 /* We can only handle RB allocated with AllocRenderbufferStorage, or
464 * window-system renderbuffers.
466 assert(!rb
->TexImage
);
471 _mesa_lock_texture(ctx
, texobj
);
472 _mesa_init_teximage_fields(ctx
, image
,
473 rb
->Width
, rb
->Height
, 1,
474 0, rb
->InternalFormat
, rb
->Format
);
475 image
->NumSamples
= rb
->NumSamples
;
477 intel_miptree_reference(&intel_image
->mt
, irb
->mt
);
479 /* Immediately validate the image to the object. */
480 intel_miptree_reference(&intel_texobj
->mt
, intel_image
->mt
);
482 intel_texobj
->needs_validate
= true;
483 _mesa_unlock_texture(ctx
, texobj
);
489 intelSetTexBuffer(__DRIcontext
*pDRICtx
, GLint target
, __DRIdrawable
*dPriv
)
491 /* The old interface didn't have the format argument, so copy our
492 * implementation's behavior at the time.
494 intelSetTexBuffer2(pDRICtx
, target
, __DRI_TEXTURE_FORMAT_RGBA
, dPriv
);
498 intel_image_target_texture_2d(struct gl_context
*ctx
, GLenum target
,
499 struct gl_texture_object
*texObj
,
500 struct gl_texture_image
*texImage
,
501 GLeglImageOES image_handle
)
503 struct brw_context
*brw
= brw_context(ctx
);
504 struct intel_mipmap_tree
*mt
;
505 __DRIscreen
*dri_screen
= brw
->screen
->driScrnPriv
;
508 image
= dri_screen
->dri2
.image
->lookupEGLImage(dri_screen
, image_handle
,
509 dri_screen
->loaderPrivate
);
513 /* We support external textures only for EGLImages created with
514 * EGL_EXT_image_dma_buf_import. We may lift that restriction in the future.
516 if (target
== GL_TEXTURE_EXTERNAL_OES
&& !image
->dma_buf_imported
) {
517 _mesa_error(ctx
, GL_INVALID_OPERATION
,
518 "glEGLImageTargetTexture2DOES(external target is enabled only "
519 "for images created with EGL_EXT_image_dma_buf_import");
523 /* Disallow depth/stencil textures: we don't have a way to pass the
524 * separate stencil miptree of a GL_DEPTH_STENCIL texture through.
526 if (image
->has_depthstencil
) {
527 _mesa_error(ctx
, GL_INVALID_OPERATION
, __func__
);
531 mt
= intel_miptree_create_for_dri_image(brw
, image
, target
, image
->format
,
536 struct intel_texture_object
*intel_texobj
= intel_texture_object(texObj
);
537 intel_texobj
->planar_format
= image
->planar_format
;
539 const GLenum internal_format
=
540 image
->internal_format
!= 0 ?
541 image
->internal_format
: _mesa_get_format_base_format(mt
->format
);
542 intel_set_texture_image_mt(brw
, texImage
, internal_format
, mt
);
543 intel_miptree_release(&mt
);
547 * \brief A fast path for glGetTexImage.
549 * \see intel_readpixels_tiled_memcpy()
552 intel_gettexsubimage_tiled_memcpy(struct gl_context
*ctx
,
553 struct gl_texture_image
*texImage
,
554 GLint xoffset
, GLint yoffset
,
555 GLsizei width
, GLsizei height
,
556 GLenum format
, GLenum type
,
558 const struct gl_pixelstore_attrib
*packing
)
560 struct brw_context
*brw
= brw_context(ctx
);
561 const struct gen_device_info
*devinfo
= &brw
->screen
->devinfo
;
562 struct intel_texture_image
*image
= intel_texture_image(texImage
);
565 /* The miptree's buffer. */
569 mem_copy_fn mem_copy
= NULL
;
571 /* This fastpath is restricted to specific texture types:
572 * a 2D BGRA, RGBA, L8 or A8 texture. It could be generalized to support
575 * FINISHME: The restrictions below on packing alignment and packing row
576 * length are likely unneeded now because we calculate the destination stride
577 * with _mesa_image_row_stride. However, before removing the restrictions
580 if (!devinfo
->has_llc
||
581 !(type
== GL_UNSIGNED_BYTE
|| type
== GL_UNSIGNED_INT_8_8_8_8_REV
) ||
582 !(texImage
->TexObject
->Target
== GL_TEXTURE_2D
||
583 texImage
->TexObject
->Target
== GL_TEXTURE_RECTANGLE
) ||
585 _mesa_is_bufferobj(packing
->BufferObj
) ||
586 packing
->Alignment
> 4 ||
587 packing
->SkipPixels
> 0 ||
588 packing
->SkipRows
> 0 ||
589 (packing
->RowLength
!= 0 && packing
->RowLength
!= width
) ||
590 packing
->SwapBytes
||
595 /* We can't handle copying from RGBX or BGRX because the tiled_memcpy
596 * function doesn't set the last channel to 1. Note this checks BaseFormat
597 * rather than TexFormat in case the RGBX format is being simulated with an
600 if (texImage
->_BaseFormat
== GL_RGB
)
603 if (!intel_get_memcpy(texImage
->TexFormat
, format
, type
, &mem_copy
, &cpp
))
606 /* If this is a nontrivial texture view, let another path handle it instead. */
607 if (texImage
->TexObject
->MinLayer
)
611 (image
->mt
->surf
.tiling
!= ISL_TILING_X
&&
612 image
->mt
->surf
.tiling
!= ISL_TILING_Y0
)) {
613 /* The algorithm is written only for X- or Y-tiled memory. */
617 /* tiled_to_linear() assumes that if the object is swizzled, it is using
618 * I915_BIT6_SWIZZLE_9_10 for X and I915_BIT6_SWIZZLE_9 for Y. This is only
619 * true on gen5 and above.
621 * The killer on top is that some gen4 have an L-shaped swizzle mode, where
622 * parts of the memory aren't swizzled at all. Userspace just can't handle
625 if (devinfo
->gen
< 5 && brw
->has_swizzling
)
628 int level
= texImage
->Level
+ texImage
->TexObject
->MinLevel
;
630 /* Since we are going to write raw data to the miptree, we need to resolve
631 * any pending fast color clears before we start.
633 assert(image
->mt
->surf
.logical_level0_px
.depth
== 1);
634 assert(image
->mt
->surf
.logical_level0_px
.array_len
== 1);
636 intel_miptree_access_raw(brw
, image
->mt
, level
, 0, true);
640 if (brw_batch_references(&brw
->batch
, bo
)) {
641 perf_debug("Flushing before mapping a referenced bo.\n");
642 intel_batchbuffer_flush(brw
);
645 void *map
= brw_bo_map(brw
, bo
, MAP_READ
| MAP_RAW
);
647 DBG("%s: failed to map bo\n", __func__
);
651 dst_pitch
= _mesa_image_row_stride(packing
, width
, format
, type
);
653 DBG("%s: level=%d x,y=(%d,%d) (w,h)=(%d,%d) format=0x%x type=0x%x "
654 "mesa_format=0x%x tiling=%d "
655 "packing=(alignment=%d row_length=%d skip_pixels=%d skip_rows=%d)\n",
656 __func__
, texImage
->Level
, xoffset
, yoffset
, width
, height
,
657 format
, type
, texImage
->TexFormat
, image
->mt
->surf
.tiling
,
658 packing
->Alignment
, packing
->RowLength
, packing
->SkipPixels
,
661 /* Adjust x and y offset based on miplevel */
662 unsigned level_x
, level_y
;
663 intel_miptree_get_image_offset(image
->mt
, level
, 0, &level_x
, &level_y
);
668 xoffset
* cpp
, (xoffset
+ width
) * cpp
,
669 yoffset
, yoffset
+ height
,
670 pixels
- (ptrdiff_t) yoffset
* dst_pitch
- (ptrdiff_t) xoffset
* cpp
,
672 dst_pitch
, image
->mt
->surf
.row_pitch
,
674 image
->mt
->surf
.tiling
,
683 intel_get_tex_sub_image(struct gl_context
*ctx
,
684 GLint xoffset
, GLint yoffset
, GLint zoffset
,
685 GLsizei width
, GLsizei height
, GLint depth
,
686 GLenum format
, GLenum type
, GLvoid
*pixels
,
687 struct gl_texture_image
*texImage
)
689 struct brw_context
*brw
= brw_context(ctx
);
692 DBG("%s\n", __func__
);
694 if (_mesa_is_bufferobj(ctx
->Pack
.BufferObj
)) {
695 if (_mesa_meta_pbo_GetTexSubImage(ctx
, 3, texImage
,
696 xoffset
, yoffset
, zoffset
,
697 width
, height
, depth
, format
, type
,
698 pixels
, &ctx
->Pack
)) {
699 /* Flush to guarantee coherency between the render cache and other
700 * caches the PBO could potentially be bound to after this point.
701 * See the related comment in intelReadPixels() for a more detailed
704 brw_emit_mi_flush(brw
);
708 perf_debug("%s: fallback to CPU mapping in PBO case\n", __func__
);
711 ok
= intel_gettexsubimage_tiled_memcpy(ctx
, texImage
, xoffset
, yoffset
,
713 format
, type
, pixels
, &ctx
->Pack
);
718 _mesa_meta_GetTexSubImage(ctx
, xoffset
, yoffset
, zoffset
,
719 width
, height
, depth
,
720 format
, type
, pixels
, texImage
);
722 DBG("%s - DONE\n", __func__
);
726 flush_astc_denorms(struct gl_context
*ctx
, GLuint dims
,
727 struct gl_texture_image
*texImage
,
728 GLint xoffset
, GLint yoffset
, GLint zoffset
,
729 GLsizei width
, GLsizei height
, GLsizei depth
)
731 struct compressed_pixelstore store
;
732 _mesa_compute_compressed_pixelstore(dims
, texImage
->TexFormat
,
733 width
, height
, depth
,
734 &ctx
->Unpack
, &store
);
736 for (int slice
= 0; slice
< store
.CopySlices
; slice
++) {
738 /* Map dest texture buffer */
741 ctx
->Driver
.MapTextureImage(ctx
, texImage
, slice
+ zoffset
,
742 xoffset
, yoffset
, width
, height
,
743 GL_MAP_READ_BIT
| GL_MAP_WRITE_BIT
,
744 &dstMap
, &dstRowStride
);
748 for (int i
= 0; i
< store
.CopyRowsPerSlice
; i
++) {
750 /* An ASTC block is stored in little endian mode. The byte that
751 * contains bits 0..7 is stored at the lower address in memory.
753 struct astc_void_extent
{
754 uint16_t header
: 12;
755 uint16_t dontcare
[3];
760 } *blocks
= (struct astc_void_extent
*) dstMap
;
762 /* Iterate over every copied block in the row */
763 for (int j
= 0; j
< store
.CopyBytesPerRow
/ 16; j
++) {
765 /* Check if the header matches that of an LDR void-extent block */
766 if (blocks
[j
].header
== 0xDFC) {
768 /* Flush UNORM16 values that would be denormalized */
769 if (blocks
[j
].A
< 4) blocks
[j
].A
= 0;
770 if (blocks
[j
].B
< 4) blocks
[j
].B
= 0;
771 if (blocks
[j
].G
< 4) blocks
[j
].G
= 0;
772 if (blocks
[j
].R
< 4) blocks
[j
].R
= 0;
776 dstMap
+= dstRowStride
;
779 ctx
->Driver
.UnmapTextureImage(ctx
, texImage
, slice
+ zoffset
);
785 intelCompressedTexSubImage(struct gl_context
*ctx
, GLuint dims
,
786 struct gl_texture_image
*texImage
,
787 GLint xoffset
, GLint yoffset
, GLint zoffset
,
788 GLsizei width
, GLsizei height
, GLsizei depth
,
790 GLsizei imageSize
, const GLvoid
*data
)
792 /* Upload the compressed data blocks */
793 _mesa_store_compressed_texsubimage(ctx
, dims
, texImage
,
794 xoffset
, yoffset
, zoffset
,
795 width
, height
, depth
,
796 format
, imageSize
, data
);
798 /* Fix up copied ASTC blocks if necessary */
799 GLenum gl_format
= _mesa_compressed_format_to_glenum(ctx
,
800 texImage
->TexFormat
);
801 bool is_linear_astc
= _mesa_is_astc_format(gl_format
) &&
802 !_mesa_is_srgb_format(gl_format
);
803 struct brw_context
*brw
= (struct brw_context
*) ctx
;
804 const struct gen_device_info
*devinfo
= &brw
->screen
->devinfo
;
805 if (devinfo
->gen
== 9 && is_linear_astc
)
806 flush_astc_denorms(ctx
, dims
, texImage
,
807 xoffset
, yoffset
, zoffset
,
808 width
, height
, depth
);
812 intelInitTextureImageFuncs(struct dd_function_table
*functions
)
814 functions
->TexImage
= intelTexImage
;
815 functions
->TexSubImage
= intelTexSubImage
;
816 functions
->CompressedTexSubImage
= intelCompressedTexSubImage
;
817 functions
->EGLImageTargetTexture2D
= intel_image_target_texture_2d
;
818 functions
->BindRenderbufferTexImage
= intel_bind_renderbuffer_tex_image
;
819 functions
->GetTexSubImage
= intel_get_tex_sub_image
;