1 /**************************************************************************
3 * Copyright 2006 Tungsten Graphics, Inc., Cedar Park, Texas.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
29 #include "main/enums.h"
30 #include "main/imports.h"
31 #include "main/macros.h"
32 #include "main/mfeatures.h"
33 #include "main/mtypes.h"
34 #include "main/fbobject.h"
35 #include "main/framebuffer.h"
36 #include "main/renderbuffer.h"
37 #include "main/context.h"
38 #include "main/teximage.h"
39 #include "main/image.h"
41 #include "swrast/swrast.h"
42 #include "drivers/common/meta.h"
44 #include "intel_context.h"
45 #include "intel_batchbuffer.h"
46 #include "intel_buffers.h"
47 #include "intel_blit.h"
48 #include "intel_fbo.h"
49 #include "intel_mipmap_tree.h"
50 #include "intel_regions.h"
51 #include "intel_tex.h"
52 #include "intel_span.h"
54 #include "brw_context.h"
57 #define FILE_DEBUG_FLAG DEBUG_FBO
59 static struct gl_renderbuffer
*
60 intel_new_renderbuffer(struct gl_context
* ctx
, GLuint name
);
63 intel_renderbuffer_update_wrapper(struct intel_context
*intel
,
64 struct intel_renderbuffer
*irb
,
65 struct intel_mipmap_tree
*mt
,
69 GLenum internal_format
);
72 intel_framebuffer_has_hiz(struct gl_framebuffer
*fb
)
74 struct intel_renderbuffer
*rb
= NULL
;
76 rb
= intel_get_renderbuffer(fb
, BUFFER_DEPTH
);
77 return rb
&& rb
->mt
&& rb
->mt
->hiz_mt
;
81 intel_get_rb_region(struct gl_framebuffer
*fb
, GLuint attIndex
)
83 struct intel_renderbuffer
*irb
= intel_get_renderbuffer(fb
, attIndex
);
85 return irb
->mt
->region
;
91 * Create a new framebuffer object.
93 static struct gl_framebuffer
*
94 intel_new_framebuffer(struct gl_context
* ctx
, GLuint name
)
96 /* Only drawable state in intel_framebuffer at this time, just use Mesa's
99 return _mesa_new_framebuffer(ctx
, name
);
103 /** Called by gl_renderbuffer::Delete() */
105 intel_delete_renderbuffer(struct gl_renderbuffer
*rb
)
107 struct intel_renderbuffer
*irb
= intel_renderbuffer(rb
);
111 intel_miptree_release(&irb
->mt
);
113 _mesa_reference_renderbuffer(&irb
->wrapped_depth
, NULL
);
114 _mesa_reference_renderbuffer(&irb
->wrapped_stencil
, NULL
);
120 * \see dd_function_table::MapRenderbuffer
123 intel_map_renderbuffer(struct gl_context
*ctx
,
124 struct gl_renderbuffer
*rb
,
125 GLuint x
, GLuint y
, GLuint w
, GLuint h
,
130 struct intel_context
*intel
= intel_context(ctx
);
131 struct intel_renderbuffer
*irb
= intel_renderbuffer(rb
);
135 /* We sometimes get called with this by our intel_span.c usage. */
142 /* For a window-system renderbuffer, we need to flip the mapping we receive
143 * upside-down. So we need to ask for a rectangle on flipped vertically, and
144 * we then return a pointer to the bottom of it with a negative stride.
147 y
= rb
->Height
- y
- h
;
150 intel_miptree_map(intel
, irb
->mt
, irb
->mt_level
, irb
->mt_layer
,
151 x
, y
, w
, h
, mode
, &map
, &stride
);
154 map
+= (h
- 1) * stride
;
158 DBG("%s: rb %d (%s) mt mapped: (%d, %d) (%dx%d) -> %p/%d\n",
159 __FUNCTION__
, rb
->Name
, _mesa_get_format_name(rb
->Format
),
160 x
, y
, w
, h
, map
, stride
);
163 *out_stride
= stride
;
167 * \see dd_function_table::UnmapRenderbuffer
170 intel_unmap_renderbuffer(struct gl_context
*ctx
,
171 struct gl_renderbuffer
*rb
)
173 struct intel_context
*intel
= intel_context(ctx
);
174 struct intel_renderbuffer
*irb
= intel_renderbuffer(rb
);
176 DBG("%s: rb %d (%s)\n", __FUNCTION__
,
177 rb
->Name
, _mesa_get_format_name(rb
->Format
));
179 intel_miptree_unmap(intel
, irb
->mt
, irb
->mt_level
, irb
->mt_layer
);
183 * Return a pointer to a specific pixel in a renderbuffer.
186 intel_get_pointer(struct gl_context
* ctx
, struct gl_renderbuffer
*rb
,
189 /* By returning NULL we force all software rendering to go through
197 * Called via glRenderbufferStorageEXT() to set the format and allocate
198 * storage for a user-created renderbuffer.
201 intel_alloc_renderbuffer_storage(struct gl_context
* ctx
, struct gl_renderbuffer
*rb
,
202 GLenum internalFormat
,
203 GLuint width
, GLuint height
)
205 struct intel_context
*intel
= intel_context(ctx
);
206 struct intel_renderbuffer
*irb
= intel_renderbuffer(rb
);
208 ASSERT(rb
->Name
!= 0);
210 switch (internalFormat
) {
212 /* Use the same format-choice logic as for textures.
213 * Renderbuffers aren't any different from textures for us,
214 * except they're less useful because you can't texture with
217 rb
->Format
= intel
->ctx
.Driver
.ChooseTextureFormat(ctx
, internalFormat
,
220 case GL_STENCIL_INDEX
:
221 case GL_STENCIL_INDEX1_EXT
:
222 case GL_STENCIL_INDEX4_EXT
:
223 case GL_STENCIL_INDEX8_EXT
:
224 case GL_STENCIL_INDEX16_EXT
:
225 /* These aren't actual texture formats, so force them here. */
226 if (intel
->has_separate_stencil
) {
227 rb
->Format
= MESA_FORMAT_S8
;
229 assert(!intel
->must_use_separate_stencil
);
230 rb
->Format
= MESA_FORMAT_S8_Z24
;
237 rb
->_BaseFormat
= _mesa_base_fbo_format(ctx
, internalFormat
);
238 rb
->DataType
= intel_mesa_format_to_rb_datatype(rb
->Format
);
242 intel_miptree_release(&irb
->mt
);
244 DBG("%s: %s: %s (%dx%d)\n", __FUNCTION__
,
245 _mesa_lookup_enum_by_nr(internalFormat
),
246 _mesa_get_format_name(rb
->Format
), width
, height
);
248 irb
->mt
= intel_miptree_create_for_renderbuffer(intel
, rb
->Format
,
253 if (intel
->vtbl
.is_hiz_depth_format(intel
, rb
->Format
)) {
254 bool ok
= intel_miptree_alloc_hiz(intel
, irb
->mt
);
256 intel_miptree_release(&irb
->mt
);
261 if (irb
->mt
->stencil_mt
) {
263 struct intel_renderbuffer
*depth_irb
, *stencil_irb
;
265 /* The RB got allocated as separate stencil. Hook up our wrapped
266 * renderbuffers so that consumers of intel_get_renderbuffer() end up
267 * with pointers to the separate pieces.
269 if (!irb
->wrapped_depth
) {
270 _mesa_reference_renderbuffer(&irb
->wrapped_depth
,
271 intel_new_renderbuffer(ctx
, ~0));
273 if (!irb
->wrapped_stencil
) {
274 _mesa_reference_renderbuffer(&irb
->wrapped_stencil
,
275 intel_new_renderbuffer(ctx
, ~0));
278 depth_irb
= intel_renderbuffer(irb
->wrapped_depth
);
279 stencil_irb
= intel_renderbuffer(irb
->wrapped_stencil
);
280 if (!depth_irb
|| !stencil_irb
) {
281 intel_miptree_release(&irb
->mt
);
285 assert(irb
->mt
->format
== MESA_FORMAT_S8_Z24
);
286 ok
= intel_renderbuffer_update_wrapper(intel
, depth_irb
, irb
->mt
,
287 0, 0, /* level, layer */
289 GL_DEPTH_COMPONENT24
);
292 ok
= intel_renderbuffer_update_wrapper(intel
, stencil_irb
,
294 0, 0, /* level, layer */
304 #if FEATURE_OES_EGL_image
306 intel_image_target_renderbuffer_storage(struct gl_context
*ctx
,
307 struct gl_renderbuffer
*rb
,
310 struct intel_context
*intel
= intel_context(ctx
);
311 struct intel_renderbuffer
*irb
;
315 screen
= intel
->intelScreen
->driScrnPriv
;
316 image
= screen
->dri2
.image
->lookupEGLImage(screen
, image_handle
,
317 screen
->loaderPrivate
);
321 /* __DRIimage is opaque to the core so it has to be checked here */
322 switch (image
->format
) {
323 case MESA_FORMAT_RGBA8888_REV
:
324 _mesa_error(&intel
->ctx
, GL_INVALID_OPERATION
,
325 "glEGLImageTargetRenderbufferStorage(unsupported image format");
332 irb
= intel_renderbuffer(rb
);
333 intel_miptree_release(&irb
->mt
);
334 irb
->mt
= intel_miptree_create_for_region(intel
,
341 rb
->InternalFormat
= image
->internal_format
;
342 rb
->Width
= image
->region
->width
;
343 rb
->Height
= image
->region
->height
;
344 rb
->Format
= image
->format
;
345 rb
->DataType
= image
->data_type
;
346 rb
->_BaseFormat
= _mesa_base_fbo_format(&intel
->ctx
,
347 image
->internal_format
);
352 * Called for each hardware renderbuffer when a _window_ is resized.
353 * Just update fields.
354 * Not used for user-created renderbuffers!
357 intel_alloc_window_storage(struct gl_context
* ctx
, struct gl_renderbuffer
*rb
,
358 GLenum internalFormat
, GLuint width
, GLuint height
)
360 ASSERT(rb
->Name
== 0);
363 rb
->InternalFormat
= internalFormat
;
370 intel_resize_buffers(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
371 GLuint width
, GLuint height
)
375 _mesa_resize_framebuffer(ctx
, fb
, width
, height
);
377 fb
->Initialized
= true; /* XXX remove someday */
384 /* Make sure all window system renderbuffers are up to date */
385 for (i
= BUFFER_FRONT_LEFT
; i
<= BUFFER_BACK_RIGHT
; i
++) {
386 struct gl_renderbuffer
*rb
= fb
->Attachment
[i
].Renderbuffer
;
388 /* only resize if size is changing */
389 if (rb
&& (rb
->Width
!= width
|| rb
->Height
!= height
)) {
390 rb
->AllocStorage(ctx
, rb
, rb
->InternalFormat
, width
, height
);
396 /** Dummy function for gl_renderbuffer::AllocStorage() */
398 intel_nop_alloc_storage(struct gl_context
* ctx
, struct gl_renderbuffer
*rb
,
399 GLenum internalFormat
, GLuint width
, GLuint height
)
401 _mesa_problem(ctx
, "intel_op_alloc_storage should never be called.");
406 * Create a new intel_renderbuffer which corresponds to an on-screen window,
407 * not a user-created renderbuffer.
409 struct intel_renderbuffer
*
410 intel_create_renderbuffer(gl_format format
)
412 GET_CURRENT_CONTEXT(ctx
);
414 struct intel_renderbuffer
*irb
;
416 irb
= CALLOC_STRUCT(intel_renderbuffer
);
418 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "creating renderbuffer");
422 _mesa_init_renderbuffer(&irb
->Base
, 0);
423 irb
->Base
.ClassID
= INTEL_RB_CLASS
;
424 irb
->Base
._BaseFormat
= _mesa_get_format_base_format(format
);
425 irb
->Base
.Format
= format
;
426 irb
->Base
.InternalFormat
= irb
->Base
._BaseFormat
;
427 irb
->Base
.DataType
= intel_mesa_format_to_rb_datatype(format
);
429 /* intel-specific methods */
430 irb
->Base
.Delete
= intel_delete_renderbuffer
;
431 irb
->Base
.AllocStorage
= intel_alloc_window_storage
;
432 irb
->Base
.GetPointer
= intel_get_pointer
;
438 * Create a new renderbuffer object.
439 * Typically called via glBindRenderbufferEXT().
441 static struct gl_renderbuffer
*
442 intel_new_renderbuffer(struct gl_context
* ctx
, GLuint name
)
444 /*struct intel_context *intel = intel_context(ctx); */
445 struct intel_renderbuffer
*irb
;
447 irb
= CALLOC_STRUCT(intel_renderbuffer
);
449 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "creating renderbuffer");
453 _mesa_init_renderbuffer(&irb
->Base
, name
);
454 irb
->Base
.ClassID
= INTEL_RB_CLASS
;
456 /* intel-specific methods */
457 irb
->Base
.Delete
= intel_delete_renderbuffer
;
458 irb
->Base
.AllocStorage
= intel_alloc_renderbuffer_storage
;
459 irb
->Base
.GetPointer
= intel_get_pointer
;
460 /* span routines set in alloc_storage function */
467 * Called via glBindFramebufferEXT().
470 intel_bind_framebuffer(struct gl_context
* ctx
, GLenum target
,
471 struct gl_framebuffer
*fb
, struct gl_framebuffer
*fbread
)
473 if (target
== GL_FRAMEBUFFER_EXT
|| target
== GL_DRAW_FRAMEBUFFER_EXT
) {
474 intel_draw_buffer(ctx
);
477 /* don't need to do anything if target == GL_READ_FRAMEBUFFER_EXT */
483 * Called via glFramebufferRenderbufferEXT().
486 intel_framebuffer_renderbuffer(struct gl_context
* ctx
,
487 struct gl_framebuffer
*fb
,
488 GLenum attachment
, struct gl_renderbuffer
*rb
)
490 DBG("Intel FramebufferRenderbuffer %u %u\n", fb
->Name
, rb
? rb
->Name
: 0);
494 _mesa_framebuffer_renderbuffer(ctx
, fb
, attachment
, rb
);
495 intel_draw_buffer(ctx
);
498 static struct intel_renderbuffer
*
499 intel_renderbuffer_wrap_miptree(struct intel_context
*intel
,
500 struct intel_mipmap_tree
*mt
,
504 GLenum internal_format
);
507 * \par Special case for separate stencil
509 * When wrapping a depthstencil texture that uses separate stencil, this
510 * function is recursively called twice: once to create \c
511 * irb->wrapped_depth and again to create \c irb->wrapped_stencil. On the
512 * call to create \c irb->wrapped_depth, the \c format and \c
513 * internal_format parameters do not match \c mt->format. In that case, \c
514 * mt->format is MESA_FORMAT_S8_Z24 and \c format is \c
515 * MESA_FORMAT_X8_Z24.
517 * @return true on success
520 intel_renderbuffer_update_wrapper(struct intel_context
*intel
,
521 struct intel_renderbuffer
*irb
,
522 struct intel_mipmap_tree
*mt
,
526 GLenum internal_format
)
528 struct gl_renderbuffer
*rb
= &irb
->Base
;
531 rb
->InternalFormat
= internal_format
;
532 rb
->DataType
= intel_mesa_format_to_rb_datatype(rb
->Format
);
533 rb
->_BaseFormat
= _mesa_get_format_base_format(rb
->Format
);
534 rb
->Width
= mt
->level
[level
].width
;
535 rb
->Height
= mt
->level
[level
].height
;
537 irb
->Base
.Delete
= intel_delete_renderbuffer
;
538 irb
->Base
.AllocStorage
= intel_nop_alloc_storage
;
540 intel_miptree_check_level_layer(mt
, level
, layer
);
541 irb
->mt_level
= level
;
542 irb
->mt_layer
= layer
;
544 if (mt
->stencil_mt
&& _mesa_is_depthstencil_format(rb
->InternalFormat
)) {
545 assert((irb
->wrapped_depth
== NULL
) == (irb
->wrapped_stencil
== NULL
));
547 struct intel_renderbuffer
*depth_irb
;
548 struct intel_renderbuffer
*stencil_irb
;
550 if (!irb
->wrapped_depth
) {
551 depth_irb
= intel_renderbuffer_wrap_miptree(intel
,
554 GL_DEPTH_COMPONENT24
);
555 stencil_irb
= intel_renderbuffer_wrap_miptree(intel
,
560 _mesa_reference_renderbuffer(&irb
->wrapped_depth
, &depth_irb
->Base
);
561 _mesa_reference_renderbuffer(&irb
->wrapped_stencil
, &stencil_irb
->Base
);
563 if (!irb
->wrapped_depth
|| !irb
->wrapped_stencil
)
568 depth_irb
= intel_renderbuffer(irb
->wrapped_depth
);
569 stencil_irb
= intel_renderbuffer(irb
->wrapped_stencil
);
571 ok
&= intel_renderbuffer_update_wrapper(intel
,
576 GL_DEPTH_COMPONENT24
);
577 ok
&= intel_renderbuffer_update_wrapper(intel
,
587 intel_miptree_reference(&depth_irb
->mt
->stencil_mt
, stencil_irb
->mt
);
588 intel_miptree_reference(&irb
->mt
, depth_irb
->mt
);
590 intel_miptree_reference(&irb
->mt
, mt
);
591 intel_renderbuffer_set_draw_offset(irb
);
593 if (mt
->hiz_mt
== NULL
&&
594 intel
->vtbl
.is_hiz_depth_format(intel
, rb
->Format
)) {
595 intel_miptree_alloc_hiz(intel
, mt
);
605 * \brief Wrap a renderbuffer around a single slice of a miptree.
607 * Called by glFramebufferTexture*(). This just allocates a
608 * ``struct intel_renderbuffer`` then calls
609 * intel_renderbuffer_update_wrapper() to do the real work.
611 * \see intel_renderbuffer_update_wrapper()
613 static struct intel_renderbuffer
*
614 intel_renderbuffer_wrap_miptree(struct intel_context
*intel
,
615 struct intel_mipmap_tree
*mt
,
619 GLenum internal_format
)
622 struct gl_context
*ctx
= &intel
->ctx
;
623 struct gl_renderbuffer
*rb
;
624 struct intel_renderbuffer
*irb
;
626 intel_miptree_check_level_layer(mt
, level
, layer
);
628 rb
= intel_new_renderbuffer(ctx
, ~0);
629 irb
= intel_renderbuffer(rb
);
633 if (!intel_renderbuffer_update_wrapper(intel
, irb
,
635 format
, internal_format
)) {
644 intel_renderbuffer_set_draw_offset(struct intel_renderbuffer
*irb
)
646 unsigned int dst_x
, dst_y
;
648 /* compute offset of the particular 2D image within the texture region */
649 intel_miptree_get_image_offset(irb
->mt
,
651 0, /* face, which we ignore */
660 * Rendering to tiled buffers requires that the base address of the
661 * buffer be aligned to a page boundary. We generally render to
662 * textures by pointing the surface at the mipmap image level, which
663 * may not be aligned to a tile boundary.
665 * This function returns an appropriately-aligned base offset
666 * according to the tiling restrictions, plus any required x/y offset
670 intel_renderbuffer_tile_offsets(struct intel_renderbuffer
*irb
,
674 struct intel_region
*region
= irb
->mt
->region
;
675 int cpp
= region
->cpp
;
676 uint32_t pitch
= region
->pitch
* cpp
;
678 if (region
->tiling
== I915_TILING_NONE
) {
681 return irb
->draw_x
* cpp
+ irb
->draw_y
* pitch
;
682 } else if (region
->tiling
== I915_TILING_X
) {
683 *tile_x
= irb
->draw_x
% (512 / cpp
);
684 *tile_y
= irb
->draw_y
% 8;
685 return ((irb
->draw_y
/ 8) * (8 * pitch
) +
686 (irb
->draw_x
- *tile_x
) / (512 / cpp
) * 4096);
688 assert(region
->tiling
== I915_TILING_Y
);
689 *tile_x
= irb
->draw_x
% (128 / cpp
);
690 *tile_y
= irb
->draw_y
% 32;
691 return ((irb
->draw_y
/ 32) * (32 * pitch
) +
692 (irb
->draw_x
- *tile_x
) / (128 / cpp
) * 4096);
698 need_tile_offset_workaround(struct brw_context
*brw
,
699 struct intel_renderbuffer
*irb
)
701 uint32_t tile_x
, tile_y
;
703 if (brw
->has_surface_tile_offset
)
706 intel_renderbuffer_tile_offsets(irb
, &tile_x
, &tile_y
);
708 return tile_x
!= 0 || tile_y
!= 0;
713 * Called by glFramebufferTexture[123]DEXT() (and other places) to
714 * prepare for rendering into texture memory. This might be called
715 * many times to choose different texture levels, cube faces, etc
716 * before intel_finish_render_texture() is ever called.
719 intel_render_texture(struct gl_context
* ctx
,
720 struct gl_framebuffer
*fb
,
721 struct gl_renderbuffer_attachment
*att
)
723 struct intel_context
*intel
= intel_context(ctx
);
724 struct gl_texture_image
*image
= _mesa_get_attachment_teximage(att
);
725 struct intel_renderbuffer
*irb
= intel_renderbuffer(att
->Renderbuffer
);
726 struct intel_texture_image
*intel_image
= intel_texture_image(image
);
727 struct intel_mipmap_tree
*mt
= intel_image
->mt
;
732 if (att
->CubeMapFace
> 0) {
733 assert(att
->Zoffset
== 0);
734 layer
= att
->CubeMapFace
;
736 layer
= att
->Zoffset
;
739 if (!intel_image
->mt
) {
740 /* Fallback on drawing to a texture that doesn't have a miptree
741 * (has a border, width/height 0, etc.)
743 _mesa_reference_renderbuffer(&att
->Renderbuffer
, NULL
);
744 _swrast_render_texture(ctx
, fb
, att
);
748 irb
= intel_renderbuffer_wrap_miptree(intel
,
753 image
->InternalFormat
);
756 /* bind the wrapper to the attachment point */
757 _mesa_reference_renderbuffer(&att
->Renderbuffer
, &irb
->Base
);
760 /* fallback to software rendering */
761 _swrast_render_texture(ctx
, fb
, att
);
766 if (!intel_renderbuffer_update_wrapper(intel
, irb
,
767 mt
, att
->TextureLevel
, layer
,
769 image
->InternalFormat
)) {
770 _mesa_reference_renderbuffer(&att
->Renderbuffer
, NULL
);
771 _swrast_render_texture(ctx
, fb
, att
);
775 DBG("Begin render %s texture tex=%u w=%d h=%d refcount=%d\n",
776 _mesa_get_format_name(image
->TexFormat
),
777 att
->Texture
->Name
, image
->Width
, image
->Height
,
780 intel_image
->used_as_render_target
= true;
783 if (need_tile_offset_workaround(brw_context(ctx
), irb
)) {
784 /* Original gen4 hardware couldn't draw to a non-tile-aligned
785 * destination in a miptree unless you actually setup your
786 * renderbuffer as a miptree and used the fragile
787 * lod/array_index/etc. controls to select the image. So,
788 * instead, we just make a new single-level miptree and render
791 struct intel_context
*intel
= intel_context(ctx
);
792 struct intel_mipmap_tree
*new_mt
;
793 int width
, height
, depth
;
795 intel_miptree_get_dimensions_for_image(image
, &width
, &height
, &depth
);
797 new_mt
= intel_miptree_create(intel
, image
->TexObject
->Target
,
798 intel_image
->base
.Base
.TexFormat
,
799 intel_image
->base
.Base
.Level
,
800 intel_image
->base
.Base
.Level
,
801 width
, height
, depth
,
804 intel_miptree_copy_teximage(intel
, intel_image
, new_mt
);
805 intel_renderbuffer_set_draw_offset(irb
);
807 intel_miptree_reference(&irb
->mt
, intel_image
->mt
);
808 intel_miptree_release(&new_mt
);
811 /* update drawing region, etc */
812 intel_draw_buffer(ctx
);
817 * Called by Mesa when rendering to a texture is done.
820 intel_finish_render_texture(struct gl_context
* ctx
,
821 struct gl_renderbuffer_attachment
*att
)
823 struct intel_context
*intel
= intel_context(ctx
);
824 struct gl_texture_object
*tex_obj
= att
->Texture
;
825 struct gl_texture_image
*image
=
826 tex_obj
->Image
[att
->CubeMapFace
][att
->TextureLevel
];
827 struct intel_texture_image
*intel_image
= intel_texture_image(image
);
829 DBG("Finish render %s texture tex=%u\n",
830 _mesa_get_format_name(image
->TexFormat
), att
->Texture
->Name
);
832 /* Flag that this image may now be validated into the object's miptree. */
834 intel_image
->used_as_render_target
= false;
836 /* Since we've (probably) rendered to the texture and will (likely) use
837 * it in the texture domain later on in this batchbuffer, flush the
838 * batch. Once again, we wish for a domain tracker in libdrm to cover
839 * usage inside of a batchbuffer like GEM does in the kernel.
841 intel_batchbuffer_emit_mi_flush(intel
);
845 * Do additional "completeness" testing of a framebuffer object.
848 intel_validate_framebuffer(struct gl_context
*ctx
, struct gl_framebuffer
*fb
)
850 struct intel_context
*intel
= intel_context(ctx
);
851 const struct intel_renderbuffer
*depthRb
=
852 intel_get_renderbuffer(fb
, BUFFER_DEPTH
);
853 const struct intel_renderbuffer
*stencilRb
=
854 intel_get_renderbuffer(fb
, BUFFER_STENCIL
);
855 struct intel_mipmap_tree
*depth_mt
= NULL
, *stencil_mt
= NULL
;
859 depth_mt
= depthRb
->mt
;
861 stencil_mt
= stencilRb
->mt
;
863 if (depth_mt
&& stencil_mt
) {
864 if (depth_mt
== stencil_mt
) {
865 /* For true packed depth/stencil (not faked on prefers-separate-stencil
866 * hardware) we need to be sure they're the same level/layer, since
867 * we'll be emitting a single packet describing the packed setup.
869 if (depthRb
->mt_level
!= stencilRb
->mt_level
||
870 depthRb
->mt_layer
!= stencilRb
->mt_layer
) {
871 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED_EXT
;
874 if (!intel
->has_separate_stencil
)
875 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED_EXT
;
876 if (stencil_mt
->format
!= MESA_FORMAT_S8
)
877 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED_EXT
;
881 for (i
= 0; i
< Elements(fb
->Attachment
); i
++) {
882 struct gl_renderbuffer
*rb
;
883 struct intel_renderbuffer
*irb
;
885 if (fb
->Attachment
[i
].Type
== GL_NONE
)
888 /* A supported attachment will have a Renderbuffer set either
889 * from being a Renderbuffer or being a texture that got the
890 * intel_wrap_texture() treatment.
892 rb
= fb
->Attachment
[i
].Renderbuffer
;
894 DBG("attachment without renderbuffer\n");
895 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED_EXT
;
899 irb
= intel_renderbuffer(rb
);
901 DBG("software rendering renderbuffer\n");
902 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED_EXT
;
906 if (!intel
->vtbl
.render_target_supported(intel
, irb
->Base
.Format
)) {
907 DBG("Unsupported HW texture/renderbuffer format attached: %s\n",
908 _mesa_get_format_name(irb
->Base
.Format
));
909 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED_EXT
;
913 if (!intel_span_supports_format(irb
->Base
.Format
)) {
914 DBG("Unsupported swrast texture/renderbuffer format attached: %s\n",
915 _mesa_get_format_name(irb
->Base
.Format
));
916 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED_EXT
;
923 * Try to do a glBlitFramebuffer using glCopyTexSubImage2D
924 * We can do this when the dst renderbuffer is actually a texture and
925 * there is no scaling, mirroring or scissoring.
927 * \return new buffer mask indicating the buffers left to blit using the
931 intel_blit_framebuffer_copy_tex_sub_image(struct gl_context
*ctx
,
932 GLint srcX0
, GLint srcY0
,
933 GLint srcX1
, GLint srcY1
,
934 GLint dstX0
, GLint dstY0
,
935 GLint dstX1
, GLint dstY1
,
936 GLbitfield mask
, GLenum filter
)
938 if (mask
& GL_COLOR_BUFFER_BIT
) {
939 const struct gl_framebuffer
*drawFb
= ctx
->DrawBuffer
;
940 const struct gl_framebuffer
*readFb
= ctx
->ReadBuffer
;
941 const struct gl_renderbuffer_attachment
*drawAtt
=
942 &drawFb
->Attachment
[drawFb
->_ColorDrawBufferIndexes
[0]];
944 /* If the source and destination are the same size with no
945 mirroring, the rectangles are within the size of the
946 texture and there is no scissor then we can use
947 glCopyTexSubimage2D to implement the blit. This will end
948 up as a fast hardware blit on some drivers */
949 if (drawAtt
&& drawAtt
->Texture
&&
950 srcX0
- srcX1
== dstX0
- dstX1
&&
951 srcY0
- srcY1
== dstY0
- dstY1
&&
954 srcX0
>= 0 && srcX1
<= readFb
->Width
&&
955 srcY0
>= 0 && srcY1
<= readFb
->Height
&&
956 dstX0
>= 0 && dstX1
<= drawFb
->Width
&&
957 dstY0
>= 0 && dstY1
<= drawFb
->Height
&&
958 !ctx
->Scissor
.Enabled
) {
959 const struct gl_texture_object
*texObj
= drawAtt
->Texture
;
960 const GLuint dstLevel
= drawAtt
->TextureLevel
;
961 const GLenum target
= texObj
->Target
;
963 struct gl_texture_image
*texImage
=
964 _mesa_select_tex_image(ctx
, texObj
, target
, dstLevel
);
966 if (intel_copy_texsubimage(intel_context(ctx
),
967 intel_texture_image(texImage
),
970 srcX1
- srcX0
, /* width */
972 mask
&= ~GL_COLOR_BUFFER_BIT
;
980 intel_blit_framebuffer(struct gl_context
*ctx
,
981 GLint srcX0
, GLint srcY0
, GLint srcX1
, GLint srcY1
,
982 GLint dstX0
, GLint dstY0
, GLint dstX1
, GLint dstY1
,
983 GLbitfield mask
, GLenum filter
)
985 /* Try faster, glCopyTexSubImage2D approach first which uses the BLT. */
986 mask
= intel_blit_framebuffer_copy_tex_sub_image(ctx
,
987 srcX0
, srcY0
, srcX1
, srcY1
,
988 dstX0
, dstY0
, dstX1
, dstY1
,
993 _mesa_meta_BlitFramebuffer(ctx
,
994 srcX0
, srcY0
, srcX1
, srcY1
,
995 dstX0
, dstY0
, dstX1
, dstY1
,
1000 intel_renderbuffer_set_needs_hiz_resolve(struct intel_renderbuffer
*irb
)
1003 intel_miptree_slice_set_needs_hiz_resolve(irb
->mt
,
1006 } else if (irb
->wrapped_depth
) {
1007 intel_renderbuffer_set_needs_hiz_resolve(
1008 intel_renderbuffer(irb
->wrapped_depth
));
1015 intel_renderbuffer_set_needs_depth_resolve(struct intel_renderbuffer
*irb
)
1018 intel_miptree_slice_set_needs_depth_resolve(irb
->mt
,
1021 } else if (irb
->wrapped_depth
) {
1022 intel_renderbuffer_set_needs_depth_resolve(
1023 intel_renderbuffer(irb
->wrapped_depth
));
1030 intel_renderbuffer_resolve_hiz(struct intel_context
*intel
,
1031 struct intel_renderbuffer
*irb
)
1034 return intel_miptree_slice_resolve_hiz(intel
,
1038 if (irb
->wrapped_depth
)
1039 return intel_renderbuffer_resolve_hiz(intel
,
1040 intel_renderbuffer(irb
->wrapped_depth
));
1046 intel_renderbuffer_resolve_depth(struct intel_context
*intel
,
1047 struct intel_renderbuffer
*irb
)
1050 return intel_miptree_slice_resolve_depth(intel
,
1055 if (irb
->wrapped_depth
)
1056 return intel_renderbuffer_resolve_depth(intel
,
1057 intel_renderbuffer(irb
->wrapped_depth
));
1063 * Do one-time context initializations related to GL_EXT_framebuffer_object.
1064 * Hook in device driver functions.
1067 intel_fbo_init(struct intel_context
*intel
)
1069 intel
->ctx
.Driver
.NewFramebuffer
= intel_new_framebuffer
;
1070 intel
->ctx
.Driver
.NewRenderbuffer
= intel_new_renderbuffer
;
1071 intel
->ctx
.Driver
.MapRenderbuffer
= intel_map_renderbuffer
;
1072 intel
->ctx
.Driver
.UnmapRenderbuffer
= intel_unmap_renderbuffer
;
1073 intel
->ctx
.Driver
.BindFramebuffer
= intel_bind_framebuffer
;
1074 intel
->ctx
.Driver
.FramebufferRenderbuffer
= intel_framebuffer_renderbuffer
;
1075 intel
->ctx
.Driver
.RenderTexture
= intel_render_texture
;
1076 intel
->ctx
.Driver
.FinishRenderTexture
= intel_finish_render_texture
;
1077 intel
->ctx
.Driver
.ResizeBuffers
= intel_resize_buffers
;
1078 intel
->ctx
.Driver
.ValidateFramebuffer
= intel_validate_framebuffer
;
1079 intel
->ctx
.Driver
.BlitFramebuffer
= intel_blit_framebuffer
;
1081 #if FEATURE_OES_EGL_image
1082 intel
->ctx
.Driver
.EGLImageTargetRenderbufferStorage
=
1083 intel_image_target_renderbuffer_storage
;