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"
29 #include "brw_blorp.h"
31 #define FILE_DEBUG_FLAG DEBUG_TEXTURE
33 /* Make sure one doesn't end up shrinking base level zero unnecessarily.
34 * Determining the base level dimension by shifting higher level dimension
35 * ends up in off-by-one value in case base level has NPOT size (for example,
37 * Choose the original base level dimension when shifted dimensions agree.
38 * Otherwise assume real resize is intended and use the new shifted value.
41 get_base_dim(unsigned old_base_dim
, unsigned new_level_dim
, unsigned level
)
43 const unsigned old_level_dim
= old_base_dim
>> level
;
44 const unsigned new_base_dim
= new_level_dim
<< level
;
46 return old_level_dim
== new_level_dim
? old_base_dim
: new_base_dim
;
49 /* Work back from the specified level of the image to the baselevel and create a
50 * miptree of that size.
52 struct intel_mipmap_tree
*
53 intel_miptree_create_for_teximage(struct brw_context
*brw
,
54 struct intel_texture_object
*intelObj
,
55 struct intel_texture_image
*intelImage
,
56 enum intel_miptree_create_flags flags
)
59 int width
, height
, depth
;
60 unsigned old_width
= 0, old_height
= 0, old_depth
= 0;
61 const struct intel_mipmap_tree
*old_mt
= intelObj
->mt
;
62 const unsigned level
= intelImage
->base
.Base
.Level
;
64 intel_get_image_dims(&intelImage
->base
.Base
, &width
, &height
, &depth
);
67 old_width
= old_mt
->surf
.logical_level0_px
.width
;
68 old_height
= old_mt
->surf
.logical_level0_px
.height
;
69 old_depth
= old_mt
->surf
.dim
== ISL_SURF_DIM_3D
?
70 old_mt
->surf
.logical_level0_px
.depth
:
71 old_mt
->surf
.logical_level0_px
.array_len
;
74 DBG("%s\n", __func__
);
76 /* Figure out image dimensions at start level. */
77 switch(intelObj
->base
.Target
) {
78 case GL_TEXTURE_2D_MULTISAMPLE
:
79 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
80 case GL_TEXTURE_RECTANGLE
:
81 case GL_TEXTURE_EXTERNAL_OES
:
85 depth
= old_mt
? get_base_dim(old_depth
, depth
, level
) :
89 case GL_TEXTURE_2D_ARRAY
:
90 case GL_TEXTURE_CUBE_MAP
:
91 case GL_TEXTURE_CUBE_MAP_ARRAY
:
92 height
= old_mt
? get_base_dim(old_height
, height
, level
) :
96 case GL_TEXTURE_1D_ARRAY
:
97 width
= old_mt
? get_base_dim(old_width
, width
, level
) :
101 unreachable("Unexpected target");
104 /* Guess a reasonable value for lastLevel. This is probably going
105 * to be wrong fairly often and might mean that we have to look at
106 * resizable buffers, or require that buffers implement lazy
107 * pagetable arrangements.
109 if ((intelObj
->base
.Sampler
.MinFilter
== GL_NEAREST
||
110 intelObj
->base
.Sampler
.MinFilter
== GL_LINEAR
) &&
111 intelImage
->base
.Base
.Level
== 0 &&
112 !intelObj
->base
.GenerateMipmap
) {
115 lastLevel
= _mesa_get_tex_max_num_levels(intelObj
->base
.Target
,
116 width
, height
, depth
) - 1;
119 return intel_miptree_create(brw
,
120 intelObj
->base
.Target
,
121 intelImage
->base
.Base
.TexFormat
,
127 MAX2(intelImage
->base
.Base
.NumSamples
, 1),
132 intel_texsubimage_blorp(struct brw_context
*brw
, GLuint dims
,
133 struct gl_texture_image
*tex_image
,
134 unsigned x
, unsigned y
, unsigned z
,
135 unsigned width
, unsigned height
, unsigned depth
,
136 GLenum format
, GLenum type
, const void *pixels
,
137 const struct gl_pixelstore_attrib
*packing
)
139 struct intel_texture_image
*intel_image
= intel_texture_image(tex_image
);
140 const unsigned mt_level
= tex_image
->Level
+ tex_image
->TexObject
->MinLevel
;
141 const unsigned mt_z
= tex_image
->TexObject
->MinLayer
+ tex_image
->Face
+ z
;
143 /* The blorp path can't understand crazy format hackery */
144 if (_mesa_base_tex_format(&brw
->ctx
, tex_image
->InternalFormat
) !=
145 _mesa_get_format_base_format(tex_image
->TexFormat
))
148 return brw_blorp_upload_miptree(brw
, intel_image
->mt
, tex_image
->TexFormat
,
149 mt_level
, x
, y
, mt_z
, width
, height
, depth
,
150 tex_image
->TexObject
->Target
, format
, type
,
155 * \brief A fast path for glTexImage and glTexSubImage.
157 * This fast path is taken when the texture format is BGRA, RGBA,
158 * A or L and when the texture memory is X- or Y-tiled. It uploads
159 * the texture data by mapping the texture memory without a GTT fence, thus
160 * acquiring a tiled view of the memory, and then copying sucessive
161 * spans within each tile.
163 * This is a performance win over the conventional texture upload path because
164 * it avoids the performance penalty of writing through the write-combine
165 * buffer. In the conventional texture upload path,
166 * texstore.c:store_texsubimage(), the texture memory is mapped through a GTT
167 * fence, thus acquiring a linear view of the memory, then each row in the
168 * image is memcpy'd. In this fast path, we replace each row's copy with
169 * a sequence of copies over each linear span in tile.
171 * One use case is Google Chrome's paint rectangles. Chrome (as
172 * of version 21) renders each page as a tiling of 256x256 GL_BGRA textures.
173 * Each page's content is initially uploaded with glTexImage2D and damaged
174 * regions are updated with glTexSubImage2D. On some workloads, the
175 * performance gain of this fastpath on Sandybridge is over 5x.
178 intel_texsubimage_tiled_memcpy(struct gl_context
* ctx
,
180 struct gl_texture_image
*texImage
,
181 GLint xoffset
, GLint yoffset
, GLint zoffset
,
182 GLsizei width
, GLsizei height
, GLsizei depth
,
183 GLenum format
, GLenum type
,
184 const GLvoid
*pixels
,
185 const struct gl_pixelstore_attrib
*packing
)
187 struct brw_context
*brw
= brw_context(ctx
);
188 const struct gen_device_info
*devinfo
= &brw
->screen
->devinfo
;
189 struct intel_texture_image
*image
= intel_texture_image(texImage
);
192 /* The miptree's buffer. */
196 mem_copy_fn mem_copy
= NULL
;
198 /* This fastpath is restricted to specific texture types:
199 * a 2D BGRA, RGBA, L8 or A8 texture. It could be generalized to support
202 * FINISHME: The restrictions below on packing alignment and packing row
203 * length are likely unneeded now because we calculate the source stride
204 * with _mesa_image_row_stride. However, before removing the restrictions
207 if (!devinfo
->has_llc
||
208 !(type
== GL_UNSIGNED_BYTE
|| type
== GL_UNSIGNED_INT_8_8_8_8_REV
) ||
209 !(texImage
->TexObject
->Target
== GL_TEXTURE_2D
||
210 texImage
->TexObject
->Target
== GL_TEXTURE_RECTANGLE
) ||
212 _mesa_is_bufferobj(packing
->BufferObj
) ||
213 packing
->Alignment
> 4 ||
214 packing
->SkipPixels
> 0 ||
215 packing
->SkipRows
> 0 ||
216 (packing
->RowLength
!= 0 && packing
->RowLength
!= width
) ||
217 packing
->SwapBytes
||
222 /* Only a simple blit, no scale, bias or other mapping. */
223 if (ctx
->_ImageTransferState
)
226 if (!intel_get_memcpy(texImage
->TexFormat
, format
, type
, &mem_copy
, &cpp
))
229 /* If this is a nontrivial texture view, let another path handle it instead. */
230 if (texImage
->TexObject
->MinLayer
)
234 (image
->mt
->surf
.tiling
!= ISL_TILING_X
&&
235 image
->mt
->surf
.tiling
!= ISL_TILING_Y0
)) {
236 /* The algorithm is written only for X- or Y-tiled memory. */
240 /* linear_to_tiled() assumes that if the object is swizzled, it is using
241 * I915_BIT6_SWIZZLE_9_10 for X and I915_BIT6_SWIZZLE_9 for Y. This is only
242 * true on gen5 and above.
244 * The killer on top is that some gen4 have an L-shaped swizzle mode, where
245 * parts of the memory aren't swizzled at all. Userspace just can't handle
248 if (devinfo
->gen
< 5 && brw
->has_swizzling
)
251 int level
= texImage
->Level
+ texImage
->TexObject
->MinLevel
;
253 /* Since we are going to write raw data to the miptree, we need to resolve
254 * any pending fast color clears before we start.
256 assert(image
->mt
->surf
.logical_level0_px
.depth
== 1);
257 assert(image
->mt
->surf
.logical_level0_px
.array_len
== 1);
259 intel_miptree_access_raw(brw
, image
->mt
, level
, 0, true);
263 if (brw_batch_references(&brw
->batch
, bo
)) {
264 perf_debug("Flushing before mapping a referenced bo.\n");
265 intel_batchbuffer_flush(brw
);
268 void *map
= brw_bo_map(brw
, bo
, MAP_WRITE
| MAP_RAW
);
270 DBG("%s: failed to map bo\n", __func__
);
274 src_pitch
= _mesa_image_row_stride(packing
, width
, format
, type
);
276 /* We postponed printing this message until having committed to executing
279 DBG("%s: level=%d offset=(%d,%d) (w,h)=(%d,%d) format=0x%x type=0x%x "
280 "mesa_format=0x%x tiling=%d "
281 "packing=(alignment=%d row_length=%d skip_pixels=%d skip_rows=%d) ",
282 __func__
, texImage
->Level
, xoffset
, yoffset
, width
, height
,
283 format
, type
, texImage
->TexFormat
, image
->mt
->surf
.tiling
,
284 packing
->Alignment
, packing
->RowLength
, packing
->SkipPixels
,
287 /* Adjust x and y offset based on miplevel */
288 unsigned level_x
, level_y
;
289 intel_miptree_get_image_offset(image
->mt
, level
, 0, &level_x
, &level_y
);
294 xoffset
* cpp
, (xoffset
+ width
) * cpp
,
295 yoffset
, yoffset
+ height
,
297 pixels
- (ptrdiff_t) yoffset
* src_pitch
- (ptrdiff_t) xoffset
* cpp
,
298 image
->mt
->surf
.row_pitch
, src_pitch
,
300 image
->mt
->surf
.tiling
,
310 intel_upload_tex(struct gl_context
* ctx
,
312 struct gl_texture_image
*texImage
,
313 GLint xoffset
, GLint yoffset
, GLint zoffset
,
314 GLsizei width
, GLsizei height
, GLsizei depth
,
315 GLenum format
, GLenum type
,
316 const GLvoid
* pixels
,
317 const struct gl_pixelstore_attrib
*packing
)
319 struct brw_context
*brw
= brw_context(ctx
);
320 struct intel_mipmap_tree
*mt
= intel_texture_image(texImage
)->mt
;
323 /* Check that there is actually data to store. */
324 if (pixels
== NULL
&& !_mesa_is_bufferobj(packing
->BufferObj
))
327 bool tex_busy
= mt
&& brw_bo_busy(mt
->bo
);
329 if (mt
&& mt
->format
== MESA_FORMAT_S_UINT8
)
330 mt
->r8stencil_needs_update
= true;
332 if (_mesa_is_bufferobj(packing
->BufferObj
) || tex_busy
||
333 mt
->aux_usage
== ISL_AUX_USAGE_CCS_E
) {
334 ok
= intel_texsubimage_blorp(brw
, dims
, texImage
,
335 xoffset
, yoffset
, zoffset
,
336 width
, height
, depth
, format
, type
,
342 ok
= intel_texsubimage_tiled_memcpy(ctx
, dims
, texImage
,
343 xoffset
, yoffset
, zoffset
,
344 width
, height
, depth
,
345 format
, type
, pixels
, packing
);
349 _mesa_store_texsubimage(ctx
, dims
, texImage
,
350 xoffset
, yoffset
, zoffset
,
351 width
, height
, depth
,
352 format
, type
, pixels
, packing
);
357 intelTexImage(struct gl_context
* ctx
,
359 struct gl_texture_image
*texImage
,
360 GLenum format
, GLenum type
, const void *pixels
,
361 const struct gl_pixelstore_attrib
*unpack
)
363 DBG("%s mesa_format %s target %s format %s type %s level %d %dx%dx%d\n",
364 __func__
, _mesa_get_format_name(texImage
->TexFormat
),
365 _mesa_enum_to_string(texImage
->TexObject
->Target
),
366 _mesa_enum_to_string(format
), _mesa_enum_to_string(type
),
367 texImage
->Level
, texImage
->Width
, texImage
->Height
, texImage
->Depth
);
369 /* Allocate storage for texture data. */
370 if (!ctx
->Driver
.AllocTextureImageBuffer(ctx
, texImage
)) {
371 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage%uD", dims
);
375 assert(intel_texture_image(texImage
)->mt
);
377 intel_upload_tex(ctx
, dims
, texImage
, 0, 0, 0,
378 texImage
->Width
, texImage
->Height
, texImage
->Depth
,
379 format
, type
, pixels
, unpack
);
384 intelTexSubImage(struct gl_context
* ctx
,
386 struct gl_texture_image
*texImage
,
387 GLint xoffset
, GLint yoffset
, GLint zoffset
,
388 GLsizei width
, GLsizei height
, GLsizei depth
,
389 GLenum format
, GLenum type
,
390 const GLvoid
* pixels
,
391 const struct gl_pixelstore_attrib
*packing
)
393 DBG("%s mesa_format %s target %s format %s type %s level %d %dx%dx%d\n",
394 __func__
, _mesa_get_format_name(texImage
->TexFormat
),
395 _mesa_enum_to_string(texImage
->TexObject
->Target
),
396 _mesa_enum_to_string(format
), _mesa_enum_to_string(type
),
397 texImage
->Level
, texImage
->Width
, texImage
->Height
, texImage
->Depth
);
399 intel_upload_tex(ctx
, dims
, texImage
, xoffset
, yoffset
, zoffset
,
400 width
, height
, depth
, format
, type
, pixels
, packing
);
405 intel_set_texture_image_mt(struct brw_context
*brw
,
406 struct gl_texture_image
*image
,
407 GLenum internal_format
,
408 struct intel_mipmap_tree
*mt
)
411 struct gl_texture_object
*texobj
= image
->TexObject
;
412 struct intel_texture_object
*intel_texobj
= intel_texture_object(texobj
);
413 struct intel_texture_image
*intel_image
= intel_texture_image(image
);
415 _mesa_init_teximage_fields(&brw
->ctx
, image
,
416 mt
->surf
.logical_level0_px
.width
,
417 mt
->surf
.logical_level0_px
.height
, 1,
418 0, internal_format
, mt
->format
);
420 brw
->ctx
.Driver
.FreeTextureImageBuffer(&brw
->ctx
, image
);
422 intel_texobj
->needs_validate
= true;
423 intel_image
->base
.RowStride
= mt
->surf
.row_pitch
/ mt
->cpp
;
424 assert(mt
->surf
.row_pitch
% mt
->cpp
== 0);
426 intel_miptree_reference(&intel_image
->mt
, mt
);
428 /* Immediately validate the image to the object. */
429 intel_miptree_reference(&intel_texobj
->mt
, mt
);
434 intelSetTexBuffer2(__DRIcontext
*pDRICtx
, GLint target
,
435 GLint texture_format
,
436 __DRIdrawable
*dPriv
)
438 struct gl_framebuffer
*fb
= dPriv
->driverPrivate
;
439 struct brw_context
*brw
= pDRICtx
->driverPrivate
;
440 struct gl_context
*ctx
= &brw
->ctx
;
441 struct intel_renderbuffer
*rb
;
442 struct gl_texture_object
*texObj
;
443 struct gl_texture_image
*texImage
;
444 mesa_format texFormat
= MESA_FORMAT_NONE
;
445 struct intel_mipmap_tree
*mt
;
446 GLenum internal_format
= 0;
448 texObj
= _mesa_get_current_tex_object(ctx
, target
);
453 if (dPriv
->lastStamp
!= dPriv
->dri2
.stamp
||
454 !pDRICtx
->driScreenPriv
->dri2
.useInvalidate
)
455 intel_update_renderbuffers(pDRICtx
, dPriv
);
457 rb
= intel_get_renderbuffer(fb
, BUFFER_FRONT_LEFT
);
458 /* If the miptree isn't set, then intel_update_renderbuffers was unable
459 * to get the BO for the drawable from the window system.
464 if (rb
->mt
->cpp
== 4) {
465 if (texture_format
== __DRI_TEXTURE_FORMAT_RGB
) {
466 internal_format
= GL_RGB
;
467 if (rb
->mt
->format
== MESA_FORMAT_B10G10R10X2_UNORM
||
468 rb
->mt
->format
== MESA_FORMAT_B10G10R10A2_UNORM
)
469 texFormat
= MESA_FORMAT_B10G10R10X2_UNORM
;
471 texFormat
= MESA_FORMAT_B8G8R8X8_UNORM
;
474 internal_format
= GL_RGBA
;
475 if (rb
->mt
->format
== MESA_FORMAT_B10G10R10X2_UNORM
||
476 rb
->mt
->format
== MESA_FORMAT_B10G10R10A2_UNORM
)
477 texFormat
= MESA_FORMAT_B10G10R10A2_UNORM
;
479 texFormat
= MESA_FORMAT_B8G8R8A8_UNORM
;
481 } else if (rb
->mt
->cpp
== 2) {
482 internal_format
= GL_RGB
;
483 texFormat
= MESA_FORMAT_B5G6R5_UNORM
;
486 intel_miptree_make_shareable(brw
, rb
->mt
);
487 mt
= intel_miptree_create_for_bo(brw
, rb
->mt
->bo
, texFormat
, 0,
489 rb
->Base
.Base
.Height
,
490 1, rb
->mt
->surf
.row_pitch
,
491 MIPTREE_CREATE_DEFAULT
);
496 _mesa_lock_texture(&brw
->ctx
, texObj
);
497 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, 0);
498 intel_set_texture_image_mt(brw
, texImage
, internal_format
, mt
);
499 intel_miptree_release(&mt
);
500 _mesa_unlock_texture(&brw
->ctx
, texObj
);
504 intel_bind_renderbuffer_tex_image(struct gl_context
*ctx
,
505 struct gl_renderbuffer
*rb
,
506 struct gl_texture_image
*image
)
508 struct intel_renderbuffer
*irb
= intel_renderbuffer(rb
);
509 struct intel_texture_image
*intel_image
= intel_texture_image(image
);
510 struct gl_texture_object
*texobj
= image
->TexObject
;
511 struct intel_texture_object
*intel_texobj
= intel_texture_object(texobj
);
513 /* We can only handle RB allocated with AllocRenderbufferStorage, or
514 * window-system renderbuffers.
516 assert(!rb
->TexImage
);
521 _mesa_lock_texture(ctx
, texobj
);
522 _mesa_init_teximage_fields(ctx
, image
,
523 rb
->Width
, rb
->Height
, 1,
524 0, rb
->InternalFormat
, rb
->Format
);
525 image
->NumSamples
= rb
->NumSamples
;
527 intel_miptree_reference(&intel_image
->mt
, irb
->mt
);
529 /* Immediately validate the image to the object. */
530 intel_miptree_reference(&intel_texobj
->mt
, intel_image
->mt
);
532 intel_texobj
->needs_validate
= true;
533 _mesa_unlock_texture(ctx
, texobj
);
539 intelSetTexBuffer(__DRIcontext
*pDRICtx
, GLint target
, __DRIdrawable
*dPriv
)
541 /* The old interface didn't have the format argument, so copy our
542 * implementation's behavior at the time.
544 intelSetTexBuffer2(pDRICtx
, target
, __DRI_TEXTURE_FORMAT_RGBA
, dPriv
);
548 intel_image_target_texture_2d(struct gl_context
*ctx
, GLenum target
,
549 struct gl_texture_object
*texObj
,
550 struct gl_texture_image
*texImage
,
551 GLeglImageOES image_handle
)
553 struct brw_context
*brw
= brw_context(ctx
);
554 struct intel_mipmap_tree
*mt
;
555 __DRIscreen
*dri_screen
= brw
->screen
->driScrnPriv
;
558 image
= dri_screen
->dri2
.image
->lookupEGLImage(dri_screen
, image_handle
,
559 dri_screen
->loaderPrivate
);
563 /* We support external textures only for EGLImages created with
564 * EGL_EXT_image_dma_buf_import. We may lift that restriction in the future.
566 if (target
== GL_TEXTURE_EXTERNAL_OES
&& !image
->dma_buf_imported
) {
567 _mesa_error(ctx
, GL_INVALID_OPERATION
,
568 "glEGLImageTargetTexture2DOES(external target is enabled only "
569 "for images created with EGL_EXT_image_dma_buf_import");
573 /* Disallow depth/stencil textures: we don't have a way to pass the
574 * separate stencil miptree of a GL_DEPTH_STENCIL texture through.
576 if (image
->has_depthstencil
) {
577 _mesa_error(ctx
, GL_INVALID_OPERATION
, __func__
);
581 mt
= intel_miptree_create_for_dri_image(brw
, image
, target
, image
->format
,
586 struct intel_texture_object
*intel_texobj
= intel_texture_object(texObj
);
587 intel_texobj
->planar_format
= image
->planar_format
;
589 const GLenum internal_format
=
590 image
->internal_format
!= 0 ?
591 image
->internal_format
: _mesa_get_format_base_format(mt
->format
);
592 intel_set_texture_image_mt(brw
, texImage
, internal_format
, mt
);
593 intel_miptree_release(&mt
);
597 intel_gettexsubimage_blorp(struct brw_context
*brw
,
598 struct gl_texture_image
*tex_image
,
599 unsigned x
, unsigned y
, unsigned z
,
600 unsigned width
, unsigned height
, unsigned depth
,
601 GLenum format
, GLenum type
, const void *pixels
,
602 const struct gl_pixelstore_attrib
*packing
)
604 struct intel_texture_image
*intel_image
= intel_texture_image(tex_image
);
605 const unsigned mt_level
= tex_image
->Level
+ tex_image
->TexObject
->MinLevel
;
606 const unsigned mt_z
= tex_image
->TexObject
->MinLayer
+ tex_image
->Face
+ z
;
608 /* The blorp path can't understand crazy format hackery */
609 if (_mesa_base_tex_format(&brw
->ctx
, tex_image
->InternalFormat
) !=
610 _mesa_get_format_base_format(tex_image
->TexFormat
))
613 return brw_blorp_download_miptree(brw
, intel_image
->mt
,
614 tex_image
->TexFormat
, SWIZZLE_XYZW
,
615 mt_level
, x
, y
, mt_z
,
616 width
, height
, depth
,
617 tex_image
->TexObject
->Target
,
618 format
, type
, false, pixels
, packing
);
622 * \brief A fast path for glGetTexImage.
624 * \see intel_readpixels_tiled_memcpy()
627 intel_gettexsubimage_tiled_memcpy(struct gl_context
*ctx
,
628 struct gl_texture_image
*texImage
,
629 GLint xoffset
, GLint yoffset
,
630 GLsizei width
, GLsizei height
,
631 GLenum format
, GLenum type
,
633 const struct gl_pixelstore_attrib
*packing
)
635 struct brw_context
*brw
= brw_context(ctx
);
636 const struct gen_device_info
*devinfo
= &brw
->screen
->devinfo
;
637 struct intel_texture_image
*image
= intel_texture_image(texImage
);
640 /* The miptree's buffer. */
644 mem_copy_fn mem_copy
= NULL
;
646 /* This fastpath is restricted to specific texture types:
647 * a 2D BGRA, RGBA, L8 or A8 texture. It could be generalized to support
650 * FINISHME: The restrictions below on packing alignment and packing row
651 * length are likely unneeded now because we calculate the destination stride
652 * with _mesa_image_row_stride. However, before removing the restrictions
655 if (!devinfo
->has_llc
||
656 !(type
== GL_UNSIGNED_BYTE
|| type
== GL_UNSIGNED_INT_8_8_8_8_REV
) ||
657 !(texImage
->TexObject
->Target
== GL_TEXTURE_2D
||
658 texImage
->TexObject
->Target
== GL_TEXTURE_RECTANGLE
) ||
660 _mesa_is_bufferobj(packing
->BufferObj
) ||
661 packing
->Alignment
> 4 ||
662 packing
->SkipPixels
> 0 ||
663 packing
->SkipRows
> 0 ||
664 (packing
->RowLength
!= 0 && packing
->RowLength
!= width
) ||
665 packing
->SwapBytes
||
670 /* We can't handle copying from RGBX or BGRX because the tiled_memcpy
671 * function doesn't set the last channel to 1. Note this checks BaseFormat
672 * rather than TexFormat in case the RGBX format is being simulated with an
675 if (texImage
->_BaseFormat
== GL_RGB
)
678 if (!intel_get_memcpy(texImage
->TexFormat
, format
, type
, &mem_copy
, &cpp
))
681 /* If this is a nontrivial texture view, let another path handle it instead. */
682 if (texImage
->TexObject
->MinLayer
)
686 (image
->mt
->surf
.tiling
!= ISL_TILING_X
&&
687 image
->mt
->surf
.tiling
!= ISL_TILING_Y0
)) {
688 /* The algorithm is written only for X- or Y-tiled memory. */
692 /* tiled_to_linear() assumes that if the object is swizzled, it is using
693 * I915_BIT6_SWIZZLE_9_10 for X and I915_BIT6_SWIZZLE_9 for Y. This is only
694 * true on gen5 and above.
696 * The killer on top is that some gen4 have an L-shaped swizzle mode, where
697 * parts of the memory aren't swizzled at all. Userspace just can't handle
700 if (devinfo
->gen
< 5 && brw
->has_swizzling
)
703 int level
= texImage
->Level
+ texImage
->TexObject
->MinLevel
;
705 /* Since we are going to write raw data to the miptree, we need to resolve
706 * any pending fast color clears before we start.
708 assert(image
->mt
->surf
.logical_level0_px
.depth
== 1);
709 assert(image
->mt
->surf
.logical_level0_px
.array_len
== 1);
711 intel_miptree_access_raw(brw
, image
->mt
, level
, 0, true);
715 if (brw_batch_references(&brw
->batch
, bo
)) {
716 perf_debug("Flushing before mapping a referenced bo.\n");
717 intel_batchbuffer_flush(brw
);
720 void *map
= brw_bo_map(brw
, bo
, MAP_READ
| MAP_RAW
);
722 DBG("%s: failed to map bo\n", __func__
);
726 dst_pitch
= _mesa_image_row_stride(packing
, width
, format
, type
);
728 DBG("%s: level=%d x,y=(%d,%d) (w,h)=(%d,%d) format=0x%x type=0x%x "
729 "mesa_format=0x%x tiling=%d "
730 "packing=(alignment=%d row_length=%d skip_pixels=%d skip_rows=%d)\n",
731 __func__
, texImage
->Level
, xoffset
, yoffset
, width
, height
,
732 format
, type
, texImage
->TexFormat
, image
->mt
->surf
.tiling
,
733 packing
->Alignment
, packing
->RowLength
, packing
->SkipPixels
,
736 /* Adjust x and y offset based on miplevel */
737 unsigned level_x
, level_y
;
738 intel_miptree_get_image_offset(image
->mt
, level
, 0, &level_x
, &level_y
);
743 xoffset
* cpp
, (xoffset
+ width
) * cpp
,
744 yoffset
, yoffset
+ height
,
745 pixels
- (ptrdiff_t) yoffset
* dst_pitch
- (ptrdiff_t) xoffset
* cpp
,
747 dst_pitch
, image
->mt
->surf
.row_pitch
,
749 image
->mt
->surf
.tiling
,
758 intel_get_tex_sub_image(struct gl_context
*ctx
,
759 GLint xoffset
, GLint yoffset
, GLint zoffset
,
760 GLsizei width
, GLsizei height
, GLint depth
,
761 GLenum format
, GLenum type
, GLvoid
*pixels
,
762 struct gl_texture_image
*texImage
)
764 struct brw_context
*brw
= brw_context(ctx
);
767 DBG("%s\n", __func__
);
769 if (_mesa_is_bufferobj(ctx
->Pack
.BufferObj
)) {
770 if (intel_gettexsubimage_blorp(brw
, texImage
,
771 xoffset
, yoffset
, zoffset
,
772 width
, height
, depth
, format
, type
,
776 perf_debug("%s: fallback to CPU mapping in PBO case\n", __func__
);
779 ok
= intel_gettexsubimage_tiled_memcpy(ctx
, texImage
, xoffset
, yoffset
,
781 format
, type
, pixels
, &ctx
->Pack
);
786 _mesa_meta_GetTexSubImage(ctx
, xoffset
, yoffset
, zoffset
,
787 width
, height
, depth
,
788 format
, type
, pixels
, texImage
);
790 DBG("%s - DONE\n", __func__
);
794 flush_astc_denorms(struct gl_context
*ctx
, GLuint dims
,
795 struct gl_texture_image
*texImage
,
796 GLint xoffset
, GLint yoffset
, GLint zoffset
,
797 GLsizei width
, GLsizei height
, GLsizei depth
)
799 struct compressed_pixelstore store
;
800 _mesa_compute_compressed_pixelstore(dims
, texImage
->TexFormat
,
801 width
, height
, depth
,
802 &ctx
->Unpack
, &store
);
804 for (int slice
= 0; slice
< store
.CopySlices
; slice
++) {
806 /* Map dest texture buffer */
809 ctx
->Driver
.MapTextureImage(ctx
, texImage
, slice
+ zoffset
,
810 xoffset
, yoffset
, width
, height
,
811 GL_MAP_READ_BIT
| GL_MAP_WRITE_BIT
,
812 &dstMap
, &dstRowStride
);
816 for (int i
= 0; i
< store
.CopyRowsPerSlice
; i
++) {
818 /* An ASTC block is stored in little endian mode. The byte that
819 * contains bits 0..7 is stored at the lower address in memory.
821 struct astc_void_extent
{
822 uint16_t header
: 12;
823 uint16_t dontcare
[3];
828 } *blocks
= (struct astc_void_extent
*) dstMap
;
830 /* Iterate over every copied block in the row */
831 for (int j
= 0; j
< store
.CopyBytesPerRow
/ 16; j
++) {
833 /* Check if the header matches that of an LDR void-extent block */
834 if (blocks
[j
].header
== 0xDFC) {
836 /* Flush UNORM16 values that would be denormalized */
837 if (blocks
[j
].A
< 4) blocks
[j
].A
= 0;
838 if (blocks
[j
].B
< 4) blocks
[j
].B
= 0;
839 if (blocks
[j
].G
< 4) blocks
[j
].G
= 0;
840 if (blocks
[j
].R
< 4) blocks
[j
].R
= 0;
844 dstMap
+= dstRowStride
;
847 ctx
->Driver
.UnmapTextureImage(ctx
, texImage
, slice
+ zoffset
);
853 intelCompressedTexSubImage(struct gl_context
*ctx
, GLuint dims
,
854 struct gl_texture_image
*texImage
,
855 GLint xoffset
, GLint yoffset
, GLint zoffset
,
856 GLsizei width
, GLsizei height
, GLsizei depth
,
858 GLsizei imageSize
, const GLvoid
*data
)
860 /* Upload the compressed data blocks */
861 _mesa_store_compressed_texsubimage(ctx
, dims
, texImage
,
862 xoffset
, yoffset
, zoffset
,
863 width
, height
, depth
,
864 format
, imageSize
, data
);
866 /* Fix up copied ASTC blocks if necessary */
867 GLenum gl_format
= _mesa_compressed_format_to_glenum(ctx
,
868 texImage
->TexFormat
);
869 bool is_linear_astc
= _mesa_is_astc_format(gl_format
) &&
870 !_mesa_is_srgb_format(gl_format
);
871 struct brw_context
*brw
= (struct brw_context
*) ctx
;
872 const struct gen_device_info
*devinfo
= &brw
->screen
->devinfo
;
873 if (devinfo
->gen
== 9 && is_linear_astc
)
874 flush_astc_denorms(ctx
, dims
, texImage
,
875 xoffset
, yoffset
, zoffset
,
876 width
, height
, depth
);
880 intelInitTextureImageFuncs(struct dd_function_table
*functions
)
882 functions
->TexImage
= intelTexImage
;
883 functions
->TexSubImage
= intelTexSubImage
;
884 functions
->CompressedTexSubImage
= intelCompressedTexSubImage
;
885 functions
->EGLImageTargetTexture2D
= intel_image_target_texture_2d
;
886 functions
->BindRenderbufferTexImage
= intel_bind_renderbuffer_tex_image
;
887 functions
->GetTexSubImage
= intel_get_tex_sub_image
;