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 const GLuint name
= ~0; /* not significant, but distinct for debugging */
623 struct gl_context
*ctx
= &intel
->ctx
;
624 struct intel_renderbuffer
*irb
;
626 intel_miptree_check_level_layer(mt
, level
, layer
);
628 irb
= CALLOC_STRUCT(intel_renderbuffer
);
630 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glFramebufferTexture");
634 _mesa_init_renderbuffer(&irb
->Base
, name
);
635 irb
->Base
.ClassID
= INTEL_RB_CLASS
;
637 if (!intel_renderbuffer_update_wrapper(intel
, irb
,
639 format
, internal_format
)) {
648 intel_renderbuffer_set_draw_offset(struct intel_renderbuffer
*irb
)
650 unsigned int dst_x
, dst_y
;
652 /* compute offset of the particular 2D image within the texture region */
653 intel_miptree_get_image_offset(irb
->mt
,
655 0, /* face, which we ignore */
664 * Rendering to tiled buffers requires that the base address of the
665 * buffer be aligned to a page boundary. We generally render to
666 * textures by pointing the surface at the mipmap image level, which
667 * may not be aligned to a tile boundary.
669 * This function returns an appropriately-aligned base offset
670 * according to the tiling restrictions, plus any required x/y offset
674 intel_renderbuffer_tile_offsets(struct intel_renderbuffer
*irb
,
678 struct intel_region
*region
= irb
->mt
->region
;
679 int cpp
= region
->cpp
;
680 uint32_t pitch
= region
->pitch
* cpp
;
682 if (region
->tiling
== I915_TILING_NONE
) {
685 return irb
->draw_x
* cpp
+ irb
->draw_y
* pitch
;
686 } else if (region
->tiling
== I915_TILING_X
) {
687 *tile_x
= irb
->draw_x
% (512 / cpp
);
688 *tile_y
= irb
->draw_y
% 8;
689 return ((irb
->draw_y
/ 8) * (8 * pitch
) +
690 (irb
->draw_x
- *tile_x
) / (512 / cpp
) * 4096);
692 assert(region
->tiling
== I915_TILING_Y
);
693 *tile_x
= irb
->draw_x
% (128 / cpp
);
694 *tile_y
= irb
->draw_y
% 32;
695 return ((irb
->draw_y
/ 32) * (32 * pitch
) +
696 (irb
->draw_x
- *tile_x
) / (128 / cpp
) * 4096);
702 need_tile_offset_workaround(struct brw_context
*brw
,
703 struct intel_renderbuffer
*irb
)
705 uint32_t tile_x
, tile_y
;
707 if (brw
->has_surface_tile_offset
)
710 intel_renderbuffer_tile_offsets(irb
, &tile_x
, &tile_y
);
712 return tile_x
!= 0 || tile_y
!= 0;
717 * Called by glFramebufferTexture[123]DEXT() (and other places) to
718 * prepare for rendering into texture memory. This might be called
719 * many times to choose different texture levels, cube faces, etc
720 * before intel_finish_render_texture() is ever called.
723 intel_render_texture(struct gl_context
* ctx
,
724 struct gl_framebuffer
*fb
,
725 struct gl_renderbuffer_attachment
*att
)
727 struct intel_context
*intel
= intel_context(ctx
);
728 struct gl_texture_image
*image
= _mesa_get_attachment_teximage(att
);
729 struct intel_renderbuffer
*irb
= intel_renderbuffer(att
->Renderbuffer
);
730 struct intel_texture_image
*intel_image
= intel_texture_image(image
);
731 struct intel_mipmap_tree
*mt
= intel_image
->mt
;
736 if (att
->CubeMapFace
> 0) {
737 assert(att
->Zoffset
== 0);
738 layer
= att
->CubeMapFace
;
740 layer
= att
->Zoffset
;
743 if (!intel_image
->mt
) {
744 /* Fallback on drawing to a texture that doesn't have a miptree
745 * (has a border, width/height 0, etc.)
747 _mesa_reference_renderbuffer(&att
->Renderbuffer
, NULL
);
748 _swrast_render_texture(ctx
, fb
, att
);
752 irb
= intel_renderbuffer_wrap_miptree(intel
,
757 image
->InternalFormat
);
760 /* bind the wrapper to the attachment point */
761 _mesa_reference_renderbuffer(&att
->Renderbuffer
, &irb
->Base
);
764 /* fallback to software rendering */
765 _swrast_render_texture(ctx
, fb
, att
);
770 if (!intel_renderbuffer_update_wrapper(intel
, irb
,
771 mt
, att
->TextureLevel
, layer
,
773 image
->InternalFormat
)) {
774 _mesa_reference_renderbuffer(&att
->Renderbuffer
, NULL
);
775 _swrast_render_texture(ctx
, fb
, att
);
779 DBG("Begin render %s texture tex=%u w=%d h=%d refcount=%d\n",
780 _mesa_get_format_name(image
->TexFormat
),
781 att
->Texture
->Name
, image
->Width
, image
->Height
,
784 intel_image
->used_as_render_target
= true;
787 if (need_tile_offset_workaround(brw_context(ctx
), irb
)) {
788 /* Original gen4 hardware couldn't draw to a non-tile-aligned
789 * destination in a miptree unless you actually setup your
790 * renderbuffer as a miptree and used the fragile
791 * lod/array_index/etc. controls to select the image. So,
792 * instead, we just make a new single-level miptree and render
795 struct intel_context
*intel
= intel_context(ctx
);
796 struct intel_mipmap_tree
*new_mt
;
797 int width
, height
, depth
;
799 intel_miptree_get_dimensions_for_image(image
, &width
, &height
, &depth
);
801 new_mt
= intel_miptree_create(intel
, image
->TexObject
->Target
,
802 intel_image
->base
.Base
.TexFormat
,
803 intel_image
->base
.Base
.Level
,
804 intel_image
->base
.Base
.Level
,
805 width
, height
, depth
,
808 intel_miptree_copy_teximage(intel
, intel_image
, new_mt
);
809 intel_renderbuffer_set_draw_offset(irb
);
811 intel_miptree_reference(&irb
->mt
, intel_image
->mt
);
812 intel_miptree_release(&new_mt
);
815 /* update drawing region, etc */
816 intel_draw_buffer(ctx
);
821 * Called by Mesa when rendering to a texture is done.
824 intel_finish_render_texture(struct gl_context
* ctx
,
825 struct gl_renderbuffer_attachment
*att
)
827 struct intel_context
*intel
= intel_context(ctx
);
828 struct gl_texture_object
*tex_obj
= att
->Texture
;
829 struct gl_texture_image
*image
=
830 tex_obj
->Image
[att
->CubeMapFace
][att
->TextureLevel
];
831 struct intel_texture_image
*intel_image
= intel_texture_image(image
);
833 DBG("Finish render %s texture tex=%u\n",
834 _mesa_get_format_name(image
->TexFormat
), att
->Texture
->Name
);
836 /* Flag that this image may now be validated into the object's miptree. */
838 intel_image
->used_as_render_target
= false;
840 /* Since we've (probably) rendered to the texture and will (likely) use
841 * it in the texture domain later on in this batchbuffer, flush the
842 * batch. Once again, we wish for a domain tracker in libdrm to cover
843 * usage inside of a batchbuffer like GEM does in the kernel.
845 intel_batchbuffer_emit_mi_flush(intel
);
849 * Do additional "completeness" testing of a framebuffer object.
852 intel_validate_framebuffer(struct gl_context
*ctx
, struct gl_framebuffer
*fb
)
854 struct intel_context
*intel
= intel_context(ctx
);
855 const struct intel_renderbuffer
*depthRb
=
856 intel_get_renderbuffer(fb
, BUFFER_DEPTH
);
857 const struct intel_renderbuffer
*stencilRb
=
858 intel_get_renderbuffer(fb
, BUFFER_STENCIL
);
862 * The depth and stencil renderbuffers are the same renderbuffer or wrap
865 if (depthRb
&& stencilRb
) {
866 bool depth_stencil_are_same
;
867 if (depthRb
== stencilRb
)
868 depth_stencil_are_same
= true;
869 else if ((fb
->Attachment
[BUFFER_DEPTH
].Type
== GL_TEXTURE
) &&
870 (fb
->Attachment
[BUFFER_STENCIL
].Type
== GL_TEXTURE
) &&
871 (fb
->Attachment
[BUFFER_DEPTH
].Texture
->Name
==
872 fb
->Attachment
[BUFFER_STENCIL
].Texture
->Name
))
873 depth_stencil_are_same
= true;
875 depth_stencil_are_same
= false;
877 if (!intel
->has_separate_stencil
&& !depth_stencil_are_same
) {
878 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED_EXT
;
882 for (i
= 0; i
< Elements(fb
->Attachment
); i
++) {
883 struct gl_renderbuffer
*rb
;
884 struct intel_renderbuffer
*irb
;
886 if (fb
->Attachment
[i
].Type
== GL_NONE
)
889 /* A supported attachment will have a Renderbuffer set either
890 * from being a Renderbuffer or being a texture that got the
891 * intel_wrap_texture() treatment.
893 rb
= fb
->Attachment
[i
].Renderbuffer
;
895 DBG("attachment without renderbuffer\n");
896 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED_EXT
;
900 irb
= intel_renderbuffer(rb
);
902 DBG("software rendering renderbuffer\n");
903 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED_EXT
;
907 if (!intel
->vtbl
.render_target_supported(intel
, irb
->Base
.Format
)) {
908 DBG("Unsupported HW texture/renderbuffer format attached: %s\n",
909 _mesa_get_format_name(irb
->Base
.Format
));
910 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED_EXT
;
914 if (!intel_span_supports_format(irb
->Base
.Format
)) {
915 DBG("Unsupported swrast texture/renderbuffer format attached: %s\n",
916 _mesa_get_format_name(irb
->Base
.Format
));
917 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED_EXT
;
924 * Try to do a glBlitFramebuffer using glCopyTexSubImage2D
925 * We can do this when the dst renderbuffer is actually a texture and
926 * there is no scaling, mirroring or scissoring.
928 * \return new buffer mask indicating the buffers left to blit using the
932 intel_blit_framebuffer_copy_tex_sub_image(struct gl_context
*ctx
,
933 GLint srcX0
, GLint srcY0
,
934 GLint srcX1
, GLint srcY1
,
935 GLint dstX0
, GLint dstY0
,
936 GLint dstX1
, GLint dstY1
,
937 GLbitfield mask
, GLenum filter
)
939 if (mask
& GL_COLOR_BUFFER_BIT
) {
940 const struct gl_framebuffer
*drawFb
= ctx
->DrawBuffer
;
941 const struct gl_framebuffer
*readFb
= ctx
->ReadBuffer
;
942 const struct gl_renderbuffer_attachment
*drawAtt
=
943 &drawFb
->Attachment
[drawFb
->_ColorDrawBufferIndexes
[0]];
945 /* If the source and destination are the same size with no
946 mirroring, the rectangles are within the size of the
947 texture and there is no scissor then we can use
948 glCopyTexSubimage2D to implement the blit. This will end
949 up as a fast hardware blit on some drivers */
950 if (drawAtt
&& drawAtt
->Texture
&&
951 srcX0
- srcX1
== dstX0
- dstX1
&&
952 srcY0
- srcY1
== dstY0
- dstY1
&&
955 srcX0
>= 0 && srcX1
<= readFb
->Width
&&
956 srcY0
>= 0 && srcY1
<= readFb
->Height
&&
957 dstX0
>= 0 && dstX1
<= drawFb
->Width
&&
958 dstY0
>= 0 && dstY1
<= drawFb
->Height
&&
959 !ctx
->Scissor
.Enabled
) {
960 const struct gl_texture_object
*texObj
= drawAtt
->Texture
;
961 const GLuint dstLevel
= drawAtt
->TextureLevel
;
962 const GLenum target
= texObj
->Target
;
964 struct gl_texture_image
*texImage
=
965 _mesa_select_tex_image(ctx
, texObj
, target
, dstLevel
);
967 if (intel_copy_texsubimage(intel_context(ctx
),
968 intel_texture_image(texImage
),
971 srcX1
- srcX0
, /* width */
973 mask
&= ~GL_COLOR_BUFFER_BIT
;
981 intel_blit_framebuffer(struct gl_context
*ctx
,
982 GLint srcX0
, GLint srcY0
, GLint srcX1
, GLint srcY1
,
983 GLint dstX0
, GLint dstY0
, GLint dstX1
, GLint dstY1
,
984 GLbitfield mask
, GLenum filter
)
986 /* Try faster, glCopyTexSubImage2D approach first which uses the BLT. */
987 mask
= intel_blit_framebuffer_copy_tex_sub_image(ctx
,
988 srcX0
, srcY0
, srcX1
, srcY1
,
989 dstX0
, dstY0
, dstX1
, dstY1
,
994 _mesa_meta_BlitFramebuffer(ctx
,
995 srcX0
, srcY0
, srcX1
, srcY1
,
996 dstX0
, dstY0
, dstX1
, dstY1
,
1001 intel_renderbuffer_set_needs_hiz_resolve(struct intel_renderbuffer
*irb
)
1004 intel_miptree_slice_set_needs_hiz_resolve(irb
->mt
,
1007 } else if (irb
->wrapped_depth
) {
1008 intel_renderbuffer_set_needs_hiz_resolve(
1009 intel_renderbuffer(irb
->wrapped_depth
));
1016 intel_renderbuffer_set_needs_depth_resolve(struct intel_renderbuffer
*irb
)
1019 intel_miptree_slice_set_needs_depth_resolve(irb
->mt
,
1022 } else if (irb
->wrapped_depth
) {
1023 intel_renderbuffer_set_needs_depth_resolve(
1024 intel_renderbuffer(irb
->wrapped_depth
));
1031 intel_renderbuffer_resolve_hiz(struct intel_context
*intel
,
1032 struct intel_renderbuffer
*irb
)
1035 return intel_miptree_slice_resolve_hiz(intel
,
1039 if (irb
->wrapped_depth
)
1040 return intel_renderbuffer_resolve_hiz(intel
,
1041 intel_renderbuffer(irb
->wrapped_depth
));
1047 intel_renderbuffer_resolve_depth(struct intel_context
*intel
,
1048 struct intel_renderbuffer
*irb
)
1051 return intel_miptree_slice_resolve_depth(intel
,
1056 if (irb
->wrapped_depth
)
1057 return intel_renderbuffer_resolve_depth(intel
,
1058 intel_renderbuffer(irb
->wrapped_depth
));
1064 * Do one-time context initializations related to GL_EXT_framebuffer_object.
1065 * Hook in device driver functions.
1068 intel_fbo_init(struct intel_context
*intel
)
1070 intel
->ctx
.Driver
.NewFramebuffer
= intel_new_framebuffer
;
1071 intel
->ctx
.Driver
.NewRenderbuffer
= intel_new_renderbuffer
;
1072 intel
->ctx
.Driver
.MapRenderbuffer
= intel_map_renderbuffer
;
1073 intel
->ctx
.Driver
.UnmapRenderbuffer
= intel_unmap_renderbuffer
;
1074 intel
->ctx
.Driver
.BindFramebuffer
= intel_bind_framebuffer
;
1075 intel
->ctx
.Driver
.FramebufferRenderbuffer
= intel_framebuffer_renderbuffer
;
1076 intel
->ctx
.Driver
.RenderTexture
= intel_render_texture
;
1077 intel
->ctx
.Driver
.FinishRenderTexture
= intel_finish_render_texture
;
1078 intel
->ctx
.Driver
.ResizeBuffers
= intel_resize_buffers
;
1079 intel
->ctx
.Driver
.ValidateFramebuffer
= intel_validate_framebuffer
;
1080 intel
->ctx
.Driver
.BlitFramebuffer
= intel_blit_framebuffer
;
1082 #if FEATURE_OES_EGL_image
1083 intel
->ctx
.Driver
.EGLImageTargetRenderbufferStorage
=
1084 intel_image_target_renderbuffer_storage
;