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 bool tex_busy
= mt
&& brw_bo_busy(mt
->bo
);
301 if (mt
&& mt
->format
== MESA_FORMAT_S_UINT8
)
302 mt
->r8stencil_needs_update
= true;
304 ok
= _mesa_meta_pbo_TexSubImage(ctx
, dims
, texImage
,
305 xoffset
, yoffset
, zoffset
,
306 width
, height
, depth
, format
, type
,
307 pixels
, tex_busy
, packing
);
311 ok
= intel_texsubimage_tiled_memcpy(ctx
, dims
, texImage
,
312 xoffset
, yoffset
, zoffset
,
313 width
, height
, depth
,
314 format
, type
, pixels
, packing
);
318 _mesa_store_texsubimage(ctx
, dims
, texImage
,
319 xoffset
, yoffset
, zoffset
,
320 width
, height
, depth
,
321 format
, type
, pixels
, packing
);
326 intelTexImage(struct gl_context
* ctx
,
328 struct gl_texture_image
*texImage
,
329 GLenum format
, GLenum type
, const void *pixels
,
330 const struct gl_pixelstore_attrib
*unpack
)
332 DBG("%s mesa_format %s target %s format %s type %s level %d %dx%dx%d\n",
333 __func__
, _mesa_get_format_name(texImage
->TexFormat
),
334 _mesa_enum_to_string(texImage
->TexObject
->Target
),
335 _mesa_enum_to_string(format
), _mesa_enum_to_string(type
),
336 texImage
->Level
, texImage
->Width
, texImage
->Height
, texImage
->Depth
);
338 /* Allocate storage for texture data. */
339 if (!ctx
->Driver
.AllocTextureImageBuffer(ctx
, texImage
)) {
340 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage%uD", dims
);
344 assert(intel_texture_image(texImage
)->mt
);
346 intel_upload_tex(ctx
, dims
, texImage
, 0, 0, 0,
347 texImage
->Width
, texImage
->Height
, texImage
->Depth
,
348 format
, type
, pixels
, unpack
);
353 intelTexSubImage(struct gl_context
* ctx
,
355 struct gl_texture_image
*texImage
,
356 GLint xoffset
, GLint yoffset
, GLint zoffset
,
357 GLsizei width
, GLsizei height
, GLsizei depth
,
358 GLenum format
, GLenum type
,
359 const GLvoid
* pixels
,
360 const struct gl_pixelstore_attrib
*packing
)
362 DBG("%s mesa_format %s target %s format %s type %s level %d %dx%dx%d\n",
363 __func__
, _mesa_get_format_name(texImage
->TexFormat
),
364 _mesa_enum_to_string(texImage
->TexObject
->Target
),
365 _mesa_enum_to_string(format
), _mesa_enum_to_string(type
),
366 texImage
->Level
, texImage
->Width
, texImage
->Height
, texImage
->Depth
);
368 intel_upload_tex(ctx
, dims
, texImage
, xoffset
, yoffset
, zoffset
,
369 width
, height
, depth
, format
, type
, pixels
, packing
);
374 intel_set_texture_image_mt(struct brw_context
*brw
,
375 struct gl_texture_image
*image
,
376 GLenum internal_format
,
377 struct intel_mipmap_tree
*mt
)
380 struct gl_texture_object
*texobj
= image
->TexObject
;
381 struct intel_texture_object
*intel_texobj
= intel_texture_object(texobj
);
382 struct intel_texture_image
*intel_image
= intel_texture_image(image
);
384 _mesa_init_teximage_fields(&brw
->ctx
, image
,
385 mt
->surf
.logical_level0_px
.width
,
386 mt
->surf
.logical_level0_px
.height
, 1,
387 0, internal_format
, mt
->format
);
389 brw
->ctx
.Driver
.FreeTextureImageBuffer(&brw
->ctx
, image
);
391 intel_texobj
->needs_validate
= true;
392 intel_image
->base
.RowStride
= mt
->surf
.row_pitch
/ mt
->cpp
;
393 assert(mt
->surf
.row_pitch
% mt
->cpp
== 0);
395 intel_miptree_reference(&intel_image
->mt
, mt
);
397 /* Immediately validate the image to the object. */
398 intel_miptree_reference(&intel_texobj
->mt
, mt
);
403 intelSetTexBuffer2(__DRIcontext
*pDRICtx
, GLint target
,
404 GLint texture_format
,
405 __DRIdrawable
*dPriv
)
407 struct gl_framebuffer
*fb
= dPriv
->driverPrivate
;
408 struct brw_context
*brw
= pDRICtx
->driverPrivate
;
409 struct gl_context
*ctx
= &brw
->ctx
;
410 struct intel_renderbuffer
*rb
;
411 struct gl_texture_object
*texObj
;
412 struct gl_texture_image
*texImage
;
413 GLenum internal_format
= 0;
415 texObj
= _mesa_get_current_tex_object(ctx
, target
);
420 if (dPriv
->lastStamp
!= dPriv
->dri2
.stamp
||
421 !pDRICtx
->driScreenPriv
->dri2
.useInvalidate
)
422 intel_update_renderbuffers(pDRICtx
, dPriv
);
424 rb
= intel_get_renderbuffer(fb
, BUFFER_FRONT_LEFT
);
425 /* If the miptree isn't set, then intel_update_renderbuffers was unable
426 * to get the BO for the drawable from the window system.
431 if (rb
->mt
->cpp
== 4) {
432 if (texture_format
== __DRI_TEXTURE_FORMAT_RGB
)
433 internal_format
= GL_RGB
;
435 internal_format
= GL_RGBA
;
436 } else if (rb
->mt
->cpp
== 2) {
438 internal_format
= GL_RGB
;
441 intel_miptree_make_shareable(brw
, rb
->mt
);
443 _mesa_lock_texture(&brw
->ctx
, texObj
);
444 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, 0);
445 intel_set_texture_image_mt(brw
, texImage
, internal_format
, rb
->mt
);
446 _mesa_unlock_texture(&brw
->ctx
, texObj
);
450 intel_bind_renderbuffer_tex_image(struct gl_context
*ctx
,
451 struct gl_renderbuffer
*rb
,
452 struct gl_texture_image
*image
)
454 struct intel_renderbuffer
*irb
= intel_renderbuffer(rb
);
455 struct intel_texture_image
*intel_image
= intel_texture_image(image
);
456 struct gl_texture_object
*texobj
= image
->TexObject
;
457 struct intel_texture_object
*intel_texobj
= intel_texture_object(texobj
);
459 /* We can only handle RB allocated with AllocRenderbufferStorage, or
460 * window-system renderbuffers.
462 assert(!rb
->TexImage
);
467 _mesa_lock_texture(ctx
, texobj
);
468 _mesa_init_teximage_fields(ctx
, image
,
469 rb
->Width
, rb
->Height
, 1,
470 0, rb
->InternalFormat
, rb
->Format
);
471 image
->NumSamples
= rb
->NumSamples
;
473 intel_miptree_reference(&intel_image
->mt
, irb
->mt
);
475 /* Immediately validate the image to the object. */
476 intel_miptree_reference(&intel_texobj
->mt
, intel_image
->mt
);
478 intel_texobj
->needs_validate
= true;
479 _mesa_unlock_texture(ctx
, texobj
);
485 intelSetTexBuffer(__DRIcontext
*pDRICtx
, GLint target
, __DRIdrawable
*dPriv
)
487 /* The old interface didn't have the format argument, so copy our
488 * implementation's behavior at the time.
490 intelSetTexBuffer2(pDRICtx
, target
, __DRI_TEXTURE_FORMAT_RGBA
, dPriv
);
494 intel_image_target_texture_2d(struct gl_context
*ctx
, GLenum target
,
495 struct gl_texture_object
*texObj
,
496 struct gl_texture_image
*texImage
,
497 GLeglImageOES image_handle
)
499 struct brw_context
*brw
= brw_context(ctx
);
500 struct intel_mipmap_tree
*mt
;
501 __DRIscreen
*dri_screen
= brw
->screen
->driScrnPriv
;
504 image
= dri_screen
->dri2
.image
->lookupEGLImage(dri_screen
, image_handle
,
505 dri_screen
->loaderPrivate
);
509 /* We support external textures only for EGLImages created with
510 * EGL_EXT_image_dma_buf_import. We may lift that restriction in the future.
512 if (target
== GL_TEXTURE_EXTERNAL_OES
&& !image
->dma_buf_imported
) {
513 _mesa_error(ctx
, GL_INVALID_OPERATION
,
514 "glEGLImageTargetTexture2DOES(external target is enabled only "
515 "for images created with EGL_EXT_image_dma_buf_import");
519 /* Disallow depth/stencil textures: we don't have a way to pass the
520 * separate stencil miptree of a GL_DEPTH_STENCIL texture through.
522 if (image
->has_depthstencil
) {
523 _mesa_error(ctx
, GL_INVALID_OPERATION
, __func__
);
527 mt
= intel_miptree_create_for_dri_image(brw
, image
, target
,
528 ISL_COLORSPACE_NONE
, false);
532 struct intel_texture_object
*intel_texobj
= intel_texture_object(texObj
);
533 intel_texobj
->planar_format
= image
->planar_format
;
535 const GLenum internal_format
=
536 image
->internal_format
!= 0 ?
537 image
->internal_format
: _mesa_get_format_base_format(mt
->format
);
538 intel_set_texture_image_mt(brw
, texImage
, internal_format
, mt
);
539 intel_miptree_release(&mt
);
543 * \brief A fast path for glGetTexImage.
545 * \see intel_readpixels_tiled_memcpy()
548 intel_gettexsubimage_tiled_memcpy(struct gl_context
*ctx
,
549 struct gl_texture_image
*texImage
,
550 GLint xoffset
, GLint yoffset
,
551 GLsizei width
, GLsizei height
,
552 GLenum format
, GLenum type
,
554 const struct gl_pixelstore_attrib
*packing
)
556 struct brw_context
*brw
= brw_context(ctx
);
557 const struct gen_device_info
*devinfo
= &brw
->screen
->devinfo
;
558 struct intel_texture_image
*image
= intel_texture_image(texImage
);
561 /* The miptree's buffer. */
565 mem_copy_fn mem_copy
= NULL
;
567 /* This fastpath is restricted to specific texture types:
568 * a 2D BGRA, RGBA, L8 or A8 texture. It could be generalized to support
571 * FINISHME: The restrictions below on packing alignment and packing row
572 * length are likely unneeded now because we calculate the destination stride
573 * with _mesa_image_row_stride. However, before removing the restrictions
576 if (!devinfo
->has_llc
||
577 !(type
== GL_UNSIGNED_BYTE
|| type
== GL_UNSIGNED_INT_8_8_8_8_REV
) ||
578 !(texImage
->TexObject
->Target
== GL_TEXTURE_2D
||
579 texImage
->TexObject
->Target
== GL_TEXTURE_RECTANGLE
) ||
581 _mesa_is_bufferobj(packing
->BufferObj
) ||
582 packing
->Alignment
> 4 ||
583 packing
->SkipPixels
> 0 ||
584 packing
->SkipRows
> 0 ||
585 (packing
->RowLength
!= 0 && packing
->RowLength
!= width
) ||
586 packing
->SwapBytes
||
591 /* We can't handle copying from RGBX or BGRX because the tiled_memcpy
592 * function doesn't set the last channel to 1. Note this checks BaseFormat
593 * rather than TexFormat in case the RGBX format is being simulated with an
596 if (texImage
->_BaseFormat
== GL_RGB
)
599 if (!intel_get_memcpy(texImage
->TexFormat
, format
, type
, &mem_copy
, &cpp
))
602 /* If this is a nontrivial texture view, let another path handle it instead. */
603 if (texImage
->TexObject
->MinLayer
)
607 (image
->mt
->surf
.tiling
!= ISL_TILING_X
&&
608 image
->mt
->surf
.tiling
!= ISL_TILING_Y0
)) {
609 /* The algorithm is written only for X- or Y-tiled memory. */
613 /* tiled_to_linear() assumes that if the object is swizzled, it is using
614 * I915_BIT6_SWIZZLE_9_10 for X and I915_BIT6_SWIZZLE_9 for Y. This is only
615 * true on gen5 and above.
617 * The killer on top is that some gen4 have an L-shaped swizzle mode, where
618 * parts of the memory aren't swizzled at all. Userspace just can't handle
621 if (devinfo
->gen
< 5 && brw
->has_swizzling
)
624 int level
= texImage
->Level
+ texImage
->TexObject
->MinLevel
;
626 /* Since we are going to write raw data to the miptree, we need to resolve
627 * any pending fast color clears before we start.
629 assert(image
->mt
->surf
.logical_level0_px
.depth
== 1);
630 assert(image
->mt
->surf
.logical_level0_px
.array_len
== 1);
632 intel_miptree_access_raw(brw
, image
->mt
, level
, 0, true);
636 if (brw_batch_references(&brw
->batch
, bo
)) {
637 perf_debug("Flushing before mapping a referenced bo.\n");
638 intel_batchbuffer_flush(brw
);
641 void *map
= brw_bo_map(brw
, bo
, MAP_READ
| MAP_RAW
);
643 DBG("%s: failed to map bo\n", __func__
);
647 dst_pitch
= _mesa_image_row_stride(packing
, width
, format
, type
);
649 DBG("%s: level=%d x,y=(%d,%d) (w,h)=(%d,%d) format=0x%x type=0x%x "
650 "mesa_format=0x%x tiling=%d "
651 "packing=(alignment=%d row_length=%d skip_pixels=%d skip_rows=%d)\n",
652 __func__
, texImage
->Level
, xoffset
, yoffset
, width
, height
,
653 format
, type
, texImage
->TexFormat
, image
->mt
->surf
.tiling
,
654 packing
->Alignment
, packing
->RowLength
, packing
->SkipPixels
,
657 /* Adjust x and y offset based on miplevel */
658 unsigned level_x
, level_y
;
659 intel_miptree_get_image_offset(image
->mt
, level
, 0, &level_x
, &level_y
);
664 xoffset
* cpp
, (xoffset
+ width
) * cpp
,
665 yoffset
, yoffset
+ height
,
666 pixels
- (ptrdiff_t) yoffset
* dst_pitch
- (ptrdiff_t) xoffset
* cpp
,
668 dst_pitch
, image
->mt
->surf
.row_pitch
,
670 image
->mt
->surf
.tiling
,
679 intel_get_tex_sub_image(struct gl_context
*ctx
,
680 GLint xoffset
, GLint yoffset
, GLint zoffset
,
681 GLsizei width
, GLsizei height
, GLint depth
,
682 GLenum format
, GLenum type
, GLvoid
*pixels
,
683 struct gl_texture_image
*texImage
)
685 struct brw_context
*brw
= brw_context(ctx
);
688 DBG("%s\n", __func__
);
690 if (_mesa_is_bufferobj(ctx
->Pack
.BufferObj
)) {
691 if (_mesa_meta_pbo_GetTexSubImage(ctx
, 3, texImage
,
692 xoffset
, yoffset
, zoffset
,
693 width
, height
, depth
, format
, type
,
694 pixels
, &ctx
->Pack
)) {
695 /* Flush to guarantee coherency between the render cache and other
696 * caches the PBO could potentially be bound to after this point.
697 * See the related comment in intelReadPixels() for a more detailed
700 brw_emit_mi_flush(brw
);
704 perf_debug("%s: fallback to CPU mapping in PBO case\n", __func__
);
707 ok
= intel_gettexsubimage_tiled_memcpy(ctx
, texImage
, xoffset
, yoffset
,
709 format
, type
, pixels
, &ctx
->Pack
);
714 _mesa_meta_GetTexSubImage(ctx
, xoffset
, yoffset
, zoffset
,
715 width
, height
, depth
,
716 format
, type
, pixels
, texImage
);
718 DBG("%s - DONE\n", __func__
);
722 flush_astc_denorms(struct gl_context
*ctx
, GLuint dims
,
723 struct gl_texture_image
*texImage
,
724 GLint xoffset
, GLint yoffset
, GLint zoffset
,
725 GLsizei width
, GLsizei height
, GLsizei depth
)
727 struct compressed_pixelstore store
;
728 _mesa_compute_compressed_pixelstore(dims
, texImage
->TexFormat
,
729 width
, height
, depth
,
730 &ctx
->Unpack
, &store
);
732 for (int slice
= 0; slice
< store
.CopySlices
; slice
++) {
734 /* Map dest texture buffer */
737 ctx
->Driver
.MapTextureImage(ctx
, texImage
, slice
+ zoffset
,
738 xoffset
, yoffset
, width
, height
,
739 GL_MAP_READ_BIT
| GL_MAP_WRITE_BIT
,
740 &dstMap
, &dstRowStride
);
744 for (int i
= 0; i
< store
.CopyRowsPerSlice
; i
++) {
746 /* An ASTC block is stored in little endian mode. The byte that
747 * contains bits 0..7 is stored at the lower address in memory.
749 struct astc_void_extent
{
750 uint16_t header
: 12;
751 uint16_t dontcare
[3];
756 } *blocks
= (struct astc_void_extent
*) dstMap
;
758 /* Iterate over every copied block in the row */
759 for (int j
= 0; j
< store
.CopyBytesPerRow
/ 16; j
++) {
761 /* Check if the header matches that of an LDR void-extent block */
762 if (blocks
[j
].header
== 0xDFC) {
764 /* Flush UNORM16 values that would be denormalized */
765 if (blocks
[j
].A
< 4) blocks
[j
].A
= 0;
766 if (blocks
[j
].B
< 4) blocks
[j
].B
= 0;
767 if (blocks
[j
].G
< 4) blocks
[j
].G
= 0;
768 if (blocks
[j
].R
< 4) blocks
[j
].R
= 0;
772 dstMap
+= dstRowStride
;
775 ctx
->Driver
.UnmapTextureImage(ctx
, texImage
, slice
+ zoffset
);
781 intelCompressedTexSubImage(struct gl_context
*ctx
, GLuint dims
,
782 struct gl_texture_image
*texImage
,
783 GLint xoffset
, GLint yoffset
, GLint zoffset
,
784 GLsizei width
, GLsizei height
, GLsizei depth
,
786 GLsizei imageSize
, const GLvoid
*data
)
788 /* Upload the compressed data blocks */
789 _mesa_store_compressed_texsubimage(ctx
, dims
, texImage
,
790 xoffset
, yoffset
, zoffset
,
791 width
, height
, depth
,
792 format
, imageSize
, data
);
794 /* Fix up copied ASTC blocks if necessary */
795 GLenum gl_format
= _mesa_compressed_format_to_glenum(ctx
,
796 texImage
->TexFormat
);
797 bool is_linear_astc
= _mesa_is_astc_format(gl_format
) &&
798 !_mesa_is_srgb_format(gl_format
);
799 struct brw_context
*brw
= (struct brw_context
*) ctx
;
800 const struct gen_device_info
*devinfo
= &brw
->screen
->devinfo
;
801 if (devinfo
->gen
== 9 && is_linear_astc
)
802 flush_astc_denorms(ctx
, dims
, texImage
,
803 xoffset
, yoffset
, zoffset
,
804 width
, height
, depth
);
808 intelInitTextureImageFuncs(struct dd_function_table
*functions
)
810 functions
->TexImage
= intelTexImage
;
811 functions
->TexSubImage
= intelTexSubImage
;
812 functions
->CompressedTexSubImage
= intelCompressedTexSubImage
;
813 functions
->EGLImageTargetTexture2D
= intel_image_target_texture_2d
;
814 functions
->BindRenderbufferTexImage
= intel_bind_renderbuffer_tex_image
;
815 functions
->GetTexSubImage
= intel_get_tex_sub_image
;