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26 /** @file intel_mipmap_tree.h
28 * This file defines the structure that wraps a BO and describes how the
29 * mipmap levels and slices of a texture are laid out.
31 * The hardware has a fixed layout of a texture depending on parameters such
32 * as the target/type (2D, 3D, CUBE), width, height, pitch, and number of
33 * mipmap levels. The individual level/layer slices are each 2D rectangles of
34 * pixels at some x/y offset from the start of the brw_bo.
36 * Original OpenGL allowed texture miplevels to be specified in arbitrary
37 * order, and a texture may change size over time. Thus, each
38 * intel_texture_image has a reference to a miptree that contains the pixel
39 * data sized appropriately for it, which will later be referenced by/copied
40 * to the intel_texture_object at draw time (intel_finalize_mipmap_tree()) so
41 * that there's a single miptree for the complete texture.
44 #ifndef INTEL_MIPMAP_TREE_H
45 #define INTEL_MIPMAP_TREE_H
49 #include "main/mtypes.h"
51 #include "brw_bufmgr.h"
52 #include "intel_resolve_map.h"
53 #include <GL/internal/dri_interface.h>
60 struct intel_renderbuffer
;
62 struct intel_resolve_map
;
63 struct intel_texture_image
;
66 * This bit extends the set of GL_MAP_*_BIT enums.
68 * When calling intel_miptree_map() on an ETC-transcoded-to-RGB miptree or a
69 * depthstencil-split-to-separate-stencil miptree, we'll normally make a
70 * temporary and recreate the kind of data requested by Mesa core, since we're
71 * satisfying some glGetTexImage() request or something.
73 * However, occasionally you want to actually map the miptree's current data
74 * without transcoding back. This flag to intel_miptree_map() gets you that.
76 #define BRW_MAP_DIRECT_BIT 0x80000000
78 struct intel_miptree_map
{
79 /** Bitfield of GL_MAP_*_BIT and BRW_MAP_*_BIT. */
81 /** Region of interest for the map. */
83 /** Possibly malloced temporary buffer for the mapping. */
85 /** Possible pointer to a temporary linear miptree for the mapping. */
86 struct intel_mipmap_tree
*linear_mt
;
87 /** Pointer to the start of (map_x, map_y) returned by the mapping. */
89 /** Stride of the mapping. */
94 * Describes the location of each texture image within a miptree.
96 struct intel_mipmap_level
98 /** Offset to this miptree level, used in computing x_offset. */
100 /** Offset to this miptree level, used in computing y_offset. */
104 * \brief Number of 2D slices in this miplevel.
106 * The exact semantics of depth varies according to the texture target:
107 * - For GL_TEXTURE_CUBE_MAP, depth is 6.
108 * - For GL_TEXTURE_2D_ARRAY, depth is the number of array slices. It is
109 * identical for all miplevels in the texture.
110 * - For GL_TEXTURE_3D, it is the texture's depth at this miplevel. Its
111 * value, like width and height, varies with miplevel.
112 * - For other texture types, depth is 1.
113 * - Additionally, for UMS and CMS miptrees, depth is multiplied by
119 * \brief Is HiZ enabled for this level?
121 * If \c mt->level[l].has_hiz is set, then (1) \c mt->hiz_mt has been
122 * allocated and (2) the HiZ memory for the slices in this level reside at
123 * \c mt->hiz_mt->level[l].
128 * \brief List of 2D images in this mipmap level.
130 * This may be a list of cube faces, array slices in 2D array texture, or
131 * layers in a 3D texture. The list's length is \c depth.
133 struct intel_mipmap_slice
{
135 * \name Offset to slice
138 * Hardware formats are so diverse that that there is no unified way to
139 * compute the slice offsets, so we store them in this table.
141 * The (x, y) offset to slice \c s at level \c l relative the miptrees
144 * x = mt->level[l].slice[s].x_offset
145 * y = mt->level[l].slice[s].y_offset
147 * On some hardware generations, we program these offsets into
148 * RENDER_SURFACE_STATE.XOffset and RENDER_SURFACE_STATE.YOffset.
155 * Mapping information. Persistent for the duration of
156 * intel_miptree_map/unmap on this slice.
158 struct intel_miptree_map
*map
;
163 * Enum for keeping track of the different MSAA layouts supported by Gen7.
165 enum intel_msaa_layout
168 * Ordinary surface with no MSAA.
170 INTEL_MSAA_LAYOUT_NONE
,
173 * Interleaved Multisample Surface. The additional samples are
174 * accommodated by scaling up the width and the height of the surface so
175 * that all the samples corresponding to a pixel are located at nearby
178 * @see PRM section "Interleaved Multisampled Surfaces"
180 INTEL_MSAA_LAYOUT_IMS
,
183 * Uncompressed Multisample Surface. The surface is stored as a 2D array,
184 * with array slice n containing all pixel data for sample n.
186 * @see PRM section "Uncompressed Multisampled Surfaces"
188 INTEL_MSAA_LAYOUT_UMS
,
191 * Compressed Multisample Surface. The surface is stored as in
192 * INTEL_MSAA_LAYOUT_UMS, but there is an additional buffer called the MCS
193 * (Multisample Control Surface) buffer. Each pixel in the MCS buffer
194 * indicates the mapping from sample number to array slice. This allows
195 * the common case (where all samples constituting a pixel have the same
196 * color value) to be stored efficiently by just using a single array
199 * @see PRM section "Compressed Multisampled Surfaces"
201 INTEL_MSAA_LAYOUT_CMS
,
204 enum miptree_array_layout
{
205 /* Each array slice contains all miplevels packed together.
207 * Gen hardware usually wants multilevel miptrees configured this way.
209 * A 2D Array texture with 2 slices and multiple LODs using
210 * ALL_LOD_IN_EACH_SLICE would look somewhat like this:
227 ALL_LOD_IN_EACH_SLICE
,
229 /* Each LOD contains all slices of that LOD packed together.
231 * In some situations, Gen7+ hardware can use the array_spacing_lod0
232 * feature to save space when the surface only contains LOD 0.
234 * Gen6 uses this for separate stencil and hiz since gen6 does not support
235 * multiple LODs for separate stencil and hiz.
237 * A 2D Array texture with 2 slices and multiple LODs using
238 * ALL_SLICES_AT_EACH_LOD would look somewhat like this:
253 ALL_SLICES_AT_EACH_LOD
,
255 /* On Sandy Bridge, HiZ and stencil buffers work the same as on Ivy Bridge
256 * except that they don't technically support mipmapping. That does not,
257 * however, stop us from doing it. As far as Sandy Bridge hardware is
258 * concerned, HiZ and stencil always operates on a single miplevel 2D
259 * (possibly array) image. The dimensions of that image are NOT minified.
261 * In order to implement HiZ and stencil on Sandy Bridge, we create one
262 * full-sized 2D (possibly array) image for every LOD with every image
263 * aligned to a page boundary. In order to save memory, we pretend that
264 * the width of each miplevel is minified and we place LOD1 and above below
265 * LOD0 but horizontally adjacent to each other. When considered as
266 * full-sized images, LOD1 and above technically overlap. However, since
267 * we only write to part of that image, the hardware will never notice the
270 * This layout looks something like this:
291 enum intel_aux_disable
{
292 INTEL_AUX_DISABLE_NONE
= 0,
293 INTEL_AUX_DISABLE_HIZ
= 1 << 1,
294 INTEL_AUX_DISABLE_MCS
= 1 << 2,
295 INTEL_AUX_DISABLE_CCS
= 1 << 3,
296 INTEL_AUX_DISABLE_ALL
= INTEL_AUX_DISABLE_HIZ
|
297 INTEL_AUX_DISABLE_MCS
|
298 INTEL_AUX_DISABLE_CCS
302 * Miptree aux buffer. These buffers are associated with a miptree, but the
303 * format is managed by the hardware.
305 * For Gen7+, we always give the hardware the start of the buffer, and let it
306 * handle all accesses to the buffer. Therefore we don't need the full miptree
307 * layout structure for this buffer.
309 struct intel_miptree_aux_buffer
312 * Buffer object containing the pixel data.
314 * @see RENDER_SURFACE_STATE.AuxiliarySurfaceBaseAddress
315 * @see 3DSTATE_HIER_DEPTH_BUFFER.AuxiliarySurfaceBaseAddress
320 * Offset into bo where the surface starts.
322 * @see intel_mipmap_aux_buffer::bo
324 * @see RENDER_SURFACE_STATE.AuxiliarySurfaceBaseAddress
325 * @see 3DSTATE_DEPTH_BUFFER.SurfaceBaseAddress
326 * @see 3DSTATE_HIER_DEPTH_BUFFER.SurfaceBaseAddress
327 * @see 3DSTATE_STENCIL_BUFFER.SurfaceBaseAddress
332 * Size of the MCS surface.
334 * This is needed when doing any gtt mapped operations on the buffer (which
335 * will be Y-tiled). It is possible that it will not be the same as bo->size
336 * when the drm allocator rounds up the requested size.
343 * @see RENDER_SURFACE_STATE.AuxiliarySurfacePitch
344 * @see 3DSTATE_HIER_DEPTH_BUFFER.SurfacePitch
349 * The distance in rows between array slices.
351 * @see RENDER_SURFACE_STATE.AuxiliarySurfaceQPitch
352 * @see 3DSTATE_HIER_DEPTH_BUFFER.SurfaceQPitch
357 * The HiZ buffer requires extra attributes on earlier GENs. This is easily
358 * contained within an intel_mipmap_tree. To make sure we do not abuse this, we
359 * keep the hiz datastructure separate.
361 struct intel_miptree_hiz_buffer
363 struct intel_miptree_aux_buffer aux_base
;
366 * Hiz miptree. Used only by Gen6.
368 struct intel_mipmap_tree
*mt
;
371 struct intel_mipmap_tree
374 * Buffer object containing the surface.
376 * @see intel_mipmap_tree::offset
377 * @see RENDER_SURFACE_STATE.SurfaceBaseAddress
378 * @see RENDER_SURFACE_STATE.AuxiliarySurfaceBaseAddress
379 * @see 3DSTATE_DEPTH_BUFFER.SurfaceBaseAddress
380 * @see 3DSTATE_HIER_DEPTH_BUFFER.SurfaceBaseAddress
381 * @see 3DSTATE_STENCIL_BUFFER.SurfaceBaseAddress
388 * @see RENDER_SURFACE_STATE.SurfacePitch
389 * @see RENDER_SURFACE_STATE.AuxiliarySurfacePitch
390 * @see 3DSTATE_DEPTH_BUFFER.SurfacePitch
391 * @see 3DSTATE_HIER_DEPTH_BUFFER.SurfacePitch
392 * @see 3DSTATE_STENCIL_BUFFER.SurfacePitch
397 * One of the I915_TILING_* flags.
399 * @see RENDER_SURFACE_STATE.TileMode
400 * @see 3DSTATE_DEPTH_BUFFER.TileMode
405 * @brief One of GL_TEXTURE_2D, GL_TEXTURE_2D_ARRAY, etc.
407 * @see RENDER_SURFACE_STATE.SurfaceType
408 * @see RENDER_SURFACE_STATE.SurfaceArray
409 * @see 3DSTATE_DEPTH_BUFFER.SurfaceType
414 * Generally, this is just the same as the gl_texture_image->TexFormat or
415 * gl_renderbuffer->Format.
417 * However, for textures and renderbuffers with packed depth/stencil formats
418 * on hardware where we want or need to use separate stencil, there will be
419 * two miptrees for storing the data. If the depthstencil texture or rb is
420 * MESA_FORMAT_Z32_FLOAT_S8X24_UINT, then mt->format will be
421 * MESA_FORMAT_Z_FLOAT32, otherwise for MESA_FORMAT_Z24_UNORM_S8_UINT objects it will be
422 * MESA_FORMAT_Z24_UNORM_X8_UINT.
424 * For ETC1/ETC2 textures, this is one of the uncompressed mesa texture
425 * formats if the hardware lacks support for ETC1/ETC2. See @ref etc_format.
427 * @see RENDER_SURFACE_STATE.SurfaceFormat
428 * @see 3DSTATE_DEPTH_BUFFER.SurfaceFormat
433 * This variable stores the value of ETC compressed texture format
435 * @see RENDER_SURFACE_STATE.SurfaceFormat
437 mesa_format etc_format
;
440 * @name Surface Alignment
443 * This defines the alignment of the upperleft pixel of each "slice" in the
444 * surface. The alignment is in pixel coordinates relative to the surface's
445 * most upperleft pixel, which is the pixel at (x=0, y=0, layer=0,
448 * The hardware docs do not use the term "slice". We use "slice" to mean
449 * the pixels at a given miplevel and layer. For 2D surfaces, the layer is
450 * the array slice; for 3D surfaces, the layer is the z offset.
452 * In the surface layout equations found in the hardware docs, the
453 * horizontal and vertical surface alignments often appear as variables 'i'
457 /** @see RENDER_SURFACE_STATE.SurfaceHorizontalAlignment */
460 /** @see RENDER_SURFACE_STATE.SurfaceVerticalAlignment */
468 * Level zero image dimensions. These dimensions correspond to the
469 * physical layout of data in memory. Accordingly, they account for the
470 * extra width, height, and or depth that must be allocated in order to
471 * accommodate multisample formats, and they account for the extra factor
472 * of 6 in depth that must be allocated in order to accommodate cubemap
475 GLuint physical_width0
, physical_height0
, physical_depth0
;
477 /** Bytes per pixel (or bytes per block if compressed) */
481 * @see RENDER_SURFACE_STATE.NumberOfMultisamples
482 * @see 3DSTATE_MULTISAMPLE.NumberOfMultisamples
489 * @name Level zero image dimensions
492 * These dimensions correspond to the
493 * logical width, height, and depth of the texture as seen by client code.
494 * Accordingly, they do not account for the extra width, height, and/or
495 * depth that must be allocated in order to accommodate multisample
496 * formats, nor do they account for the extra factor of 6 in depth that
497 * must be allocated in order to accommodate cubemap textures.
501 * @see RENDER_SURFACE_STATE.Width
502 * @see 3DSTATE_DEPTH_BUFFER.Width
504 uint32_t logical_width0
;
507 * @see RENDER_SURFACE_STATE.Height
508 * @see 3DSTATE_DEPTH_BUFFER.Height
510 uint32_t logical_height0
;
513 * @see RENDER_SURFACE_STATE.Depth
514 * @see 3DSTATE_DEPTH_BUFFER.Depth
516 uint32_t logical_depth0
;
520 * Indicates if we use the standard miptree layout (ALL_LOD_IN_EACH_SLICE),
521 * or if we tightly pack array slices at each LOD (ALL_SLICES_AT_EACH_LOD).
523 enum miptree_array_layout array_layout
;
526 * The distance in between array slices.
528 * The value is the one that is sent in the surface state. The actual
529 * meaning depends on certain criteria. Usually it is simply the number of
530 * uncompressed rows between each slice. However on Gen9+ for compressed
531 * surfaces it is the number of blocks. For 1D array surfaces that have the
532 * mipmap tree stored horizontally it is the number of pixels between each
535 * @see RENDER_SURFACE_STATE.SurfaceQPitch
536 * @see 3DSTATE_DEPTH_BUFFER.SurfaceQPitch
537 * @see 3DSTATE_HIER_DEPTH_BUFFER.SurfaceQPitch
538 * @see 3DSTATE_STENCIL_BUFFER.SurfaceQPitch
543 * MSAA layout used by this buffer.
545 * @see RENDER_SURFACE_STATE.MultisampledSurfaceStorageFormat
547 enum intel_msaa_layout msaa_layout
;
549 /* Derived from the above:
554 /* Includes image offset tables: */
555 struct intel_mipmap_level level
[MAX_TEXTURE_LEVELS
];
558 * Offset into bo where the surface starts.
560 * @see intel_mipmap_tree::bo
562 * @see RENDER_SURFACE_STATE.AuxiliarySurfaceBaseAddress
563 * @see 3DSTATE_DEPTH_BUFFER.SurfaceBaseAddress
564 * @see 3DSTATE_HIER_DEPTH_BUFFER.SurfaceBaseAddress
565 * @see 3DSTATE_STENCIL_BUFFER.SurfaceBaseAddress
570 * \brief HiZ aux buffer
572 * To allocate the hiz buffer, use intel_miptree_alloc_hiz().
574 * To determine if hiz is enabled, do not check this pointer. Instead, use
575 * intel_miptree_slice_has_hiz().
577 struct intel_miptree_hiz_buffer
*hiz_buf
;
580 * \brief Maps of miptree slices to needed resolves.
582 * hiz_map is used only when the miptree has a child HiZ miptree.
584 * Let \c mt be a depth miptree with HiZ enabled. Then the resolve map is
585 * \c mt->hiz_map. The resolve map of the child HiZ miptree, \c
586 * mt->hiz_mt->hiz_map, is unused.
589 * color_resolve_map is used only when the miptree uses fast clear (Gen7+)
590 * lossless compression (Gen9+). It should be noted that absence in the
591 * map means implicitly RESOLVED state. If item is found it always
592 * indicates state other than RESOLVED.
594 struct exec_list hiz_map
; /* List of intel_resolve_map. */
597 * \brief Maps miptree slices to their current aux state
599 * This two-dimensional array is indexed as [level][layer] and stores an
600 * aux state for each slice.
602 enum isl_aux_state
**aux_state
;
605 * \brief Stencil miptree for depthstencil textures.
607 * This miptree is used for depthstencil textures and renderbuffers that
608 * require separate stencil. It always has the true copy of the stencil
609 * bits, regardless of mt->format.
611 * \see 3DSTATE_STENCIL_BUFFER
612 * \see intel_miptree_map_depthstencil()
613 * \see intel_miptree_unmap_depthstencil()
615 struct intel_mipmap_tree
*stencil_mt
;
618 * \brief Stencil texturing miptree for sampling from a stencil texture
620 * Some hardware doesn't support sampling from the stencil texture as
621 * required by the GL_ARB_stencil_texturing extenion. To workaround this we
622 * blit the texture into a new texture that can be sampled.
624 * \see intel_update_r8stencil()
626 struct intel_mipmap_tree
*r8stencil_mt
;
627 bool r8stencil_needs_update
;
630 * \brief MCS auxiliary buffer.
632 * This buffer contains the "multisample control surface", which stores
633 * the necessary information to implement compressed MSAA
634 * (INTEL_MSAA_FORMAT_CMS) and "fast color clear" behaviour on Gen7+.
636 * NULL if no MCS buffer is in use for this surface.
638 struct intel_miptree_aux_buffer
*mcs_buf
;
641 * Planes 1 and 2 in case this is a planar surface.
643 struct intel_mipmap_tree
*plane
[2];
646 * Fast clear color for this surface. For depth surfaces, the clear value
647 * is stored as a float32 in the red component.
649 union isl_color_value fast_clear_color
;
652 * Disable allocation of auxiliary buffers, such as the HiZ buffer and MCS
653 * buffer. This is useful for sharing the miptree bo with an external client
654 * that doesn't understand auxiliary buffers.
656 enum intel_aux_disable aux_disable
;
659 * Tells if the underlying buffer is to be also consumed by entities other
660 * than the driver. This allows logic to turn off features such as lossless
661 * compression which is not currently understood by client applications.
665 /* These are also refcounted:
671 intel_miptree_is_lossless_compressed(const struct brw_context
*brw
,
672 const struct intel_mipmap_tree
*mt
);
675 intel_tiling_supports_non_msrt_mcs(const struct brw_context
*brw
,
679 intel_miptree_supports_non_msrt_fast_clear(struct brw_context
*brw
,
680 const struct intel_mipmap_tree
*mt
);
683 intel_miptree_supports_lossless_compressed(struct brw_context
*brw
,
684 const struct intel_mipmap_tree
*mt
);
687 intel_miptree_alloc_non_msrt_mcs(struct brw_context
*brw
,
688 struct intel_mipmap_tree
*mt
,
689 bool is_lossless_compressed
);
692 MIPTREE_LAYOUT_ACCELERATED_UPLOAD
= 1 << 0,
693 MIPTREE_LAYOUT_GEN6_HIZ_STENCIL
= 1 << 1,
694 MIPTREE_LAYOUT_FOR_BO
= 1 << 2,
695 MIPTREE_LAYOUT_DISABLE_AUX
= 1 << 3,
696 MIPTREE_LAYOUT_FORCE_HALIGN16
= 1 << 4,
698 MIPTREE_LAYOUT_TILING_Y
= 1 << 5,
699 MIPTREE_LAYOUT_TILING_NONE
= 1 << 6,
700 MIPTREE_LAYOUT_TILING_ANY
= MIPTREE_LAYOUT_TILING_Y
|
701 MIPTREE_LAYOUT_TILING_NONE
,
703 MIPTREE_LAYOUT_FOR_SCANOUT
= 1 << 7,
706 struct intel_mipmap_tree
*intel_miptree_create(struct brw_context
*brw
,
717 struct intel_mipmap_tree
*
718 intel_miptree_create_for_bo(struct brw_context
*brw
,
726 uint32_t layout_flags
);
729 intel_update_winsys_renderbuffer_miptree(struct brw_context
*intel
,
730 struct intel_renderbuffer
*irb
,
732 uint32_t width
, uint32_t height
,
736 * Create a miptree appropriate as the storage for a non-texture renderbuffer.
737 * The miptree has the following properties:
738 * - The target is GL_TEXTURE_2D.
739 * - There are no levels other than the base level 0.
742 struct intel_mipmap_tree
*
743 intel_miptree_create_for_renderbuffer(struct brw_context
*brw
,
747 uint32_t num_samples
);
750 intel_depth_format_for_depthstencil_format(mesa_format format
);
753 intel_lower_compressed_format(struct brw_context
*brw
, mesa_format format
);
755 /** \brief Assert that the level and layer are valid for the miptree. */
757 intel_miptree_check_level_layer(const struct intel_mipmap_tree
*mt
,
765 assert(level
>= mt
->first_level
);
766 assert(level
<= mt
->last_level
);
767 assert(layer
< mt
->level
[level
].depth
);
770 void intel_miptree_reference(struct intel_mipmap_tree
**dst
,
771 struct intel_mipmap_tree
*src
);
773 void intel_miptree_release(struct intel_mipmap_tree
**mt
);
775 /* Check if an image fits an existing mipmap tree layout
777 bool intel_miptree_match_image(struct intel_mipmap_tree
*mt
,
778 struct gl_texture_image
*image
);
781 intel_miptree_get_image_offset(const struct intel_mipmap_tree
*mt
,
782 GLuint level
, GLuint slice
,
783 GLuint
*x
, GLuint
*y
);
786 get_isl_surf_dim(GLenum target
);
789 get_isl_dim_layout(const struct gen_device_info
*devinfo
, uint32_t tiling
,
790 GLenum target
, enum miptree_array_layout array_layout
);
793 intel_miptree_get_isl_tiling(const struct intel_mipmap_tree
*mt
);
796 intel_miptree_get_isl_surf(struct brw_context
*brw
,
797 const struct intel_mipmap_tree
*mt
,
798 struct isl_surf
*surf
);
800 intel_miptree_get_aux_isl_surf(struct brw_context
*brw
,
801 const struct intel_mipmap_tree
*mt
,
802 struct isl_surf
*surf
,
803 enum isl_aux_usage
*usage
);
806 intel_get_image_dims(struct gl_texture_image
*image
,
807 int *width
, int *height
, int *depth
);
810 intel_get_tile_masks(uint32_t tiling
, uint32_t cpp
,
811 uint32_t *mask_x
, uint32_t *mask_y
);
814 intel_get_tile_dims(uint32_t tiling
, uint32_t cpp
,
815 uint32_t *tile_w
, uint32_t *tile_h
);
818 intel_miptree_get_tile_offsets(const struct intel_mipmap_tree
*mt
,
819 GLuint level
, GLuint slice
,
823 intel_miptree_get_aligned_offset(const struct intel_mipmap_tree
*mt
,
824 uint32_t x
, uint32_t y
);
826 void intel_miptree_set_level_info(struct intel_mipmap_tree
*mt
,
828 GLuint x
, GLuint y
, GLuint d
);
830 void intel_miptree_set_image_offset(struct intel_mipmap_tree
*mt
,
832 GLuint img
, GLuint x
, GLuint y
);
835 intel_miptree_copy_teximage(struct brw_context
*brw
,
836 struct intel_texture_image
*intelImage
,
837 struct intel_mipmap_tree
*dst_mt
, bool invalidate
);
840 * \name Miptree HiZ functions
843 * It is safe to call the "slice_set_need_resolve" and "slice_resolve"
844 * functions on a miptree without HiZ. In that case, each function is a no-op.
848 intel_miptree_wants_hiz_buffer(struct brw_context
*brw
,
849 struct intel_mipmap_tree
*mt
);
852 * \brief Allocate the miptree's embedded HiZ miptree.
853 * \see intel_mipmap_tree:hiz_mt
854 * \return false if allocation failed
857 intel_miptree_alloc_hiz(struct brw_context
*brw
,
858 struct intel_mipmap_tree
*mt
);
861 intel_miptree_level_has_hiz(struct intel_mipmap_tree
*mt
, uint32_t level
);
864 * \return false if no resolve was needed
867 intel_miptree_all_slices_resolve_depth(struct brw_context
*brw
,
868 struct intel_mipmap_tree
*mt
);
873 intel_miptree_has_color_unresolved(const struct intel_mipmap_tree
*mt
,
874 unsigned start_level
, unsigned num_levels
,
875 unsigned start_layer
, unsigned num_layers
);
878 #define INTEL_REMAINING_LAYERS UINT32_MAX
879 #define INTEL_REMAINING_LEVELS UINT32_MAX
881 /** Prepare a miptree for access
883 * This function should be called prior to any access to miptree in order to
884 * perform any needed resolves.
886 * \param[in] start_level The first mip level to be accessed
888 * \param[in] num_levels The number of miplevels to be accessed or
889 * INTEL_REMAINING_LEVELS to indicate every level
890 * above start_level will be accessed
892 * \param[in] start_layer The first array slice or 3D layer to be accessed
894 * \param[in] num_layers The number of array slices or 3D layers be
895 * accessed or INTEL_REMAINING_LAYERS to indicate
896 * every layer above start_layer will be accessed
898 * \param[in] aux_supported Whether or not the access will support the
899 * miptree's auxiliary compression format; this
900 * must be false for uncompressed miptrees
902 * \param[in] fast_clear_supported Whether or not the access will support
903 * fast clears in the miptree's auxiliary
907 intel_miptree_prepare_access(struct brw_context
*brw
,
908 struct intel_mipmap_tree
*mt
,
909 uint32_t start_level
, uint32_t num_levels
,
910 uint32_t start_layer
, uint32_t num_layers
,
911 bool aux_supported
, bool fast_clear_supported
);
913 /** Complete a write operation
915 * This function should be called after any operation writes to a miptree.
916 * This will update the miptree's compression state so that future resolves
917 * happen correctly. Technically, this function can be called before the
918 * write occurs but the caller must ensure that they don't interlace
919 * intel_miptree_prepare_access and intel_miptree_finish_write calls to
920 * overlapping layer/level ranges.
922 * \param[in] level The mip level that was written
924 * \param[in] start_layer The first array slice or 3D layer written
926 * \param[in] num_layers The number of array slices or 3D layers
927 * written or INTEL_REMAINING_LAYERS to indicate
928 * every layer above start_layer was written
930 * \param[in] written_with_aux Whether or not the write was done with
931 * auxiliary compression enabled
934 intel_miptree_finish_write(struct brw_context
*brw
,
935 struct intel_mipmap_tree
*mt
, uint32_t level
,
936 uint32_t start_layer
, uint32_t num_layers
,
937 bool written_with_aux
);
939 /** Get the auxiliary compression state of a miptree slice */
941 intel_miptree_get_aux_state(const struct intel_mipmap_tree
*mt
,
942 uint32_t level
, uint32_t layer
);
944 /** Set the auxiliary compression state of a miptree slice range
946 * This function directly sets the auxiliary compression state of a slice
947 * range of a miptree. It only modifies data structures and does not do any
948 * resolves. This should only be called by code which directly performs
949 * compression operations such as fast clears and resolves. Most code should
950 * use intel_miptree_prepare_access or intel_miptree_finish_write.
953 intel_miptree_set_aux_state(struct brw_context
*brw
,
954 struct intel_mipmap_tree
*mt
, uint32_t level
,
955 uint32_t start_layer
, uint32_t num_layers
,
956 enum isl_aux_state aux_state
);
959 * Prepare a miptree for raw access
961 * This helper prepares the miptree for access that knows nothing about any
962 * sort of compression whatsoever. This is useful when mapping the surface or
963 * using it with the blitter.
966 intel_miptree_access_raw(struct brw_context
*brw
,
967 struct intel_mipmap_tree
*mt
,
968 uint32_t level
, uint32_t layer
,
971 intel_miptree_prepare_access(brw
, mt
, level
, 1, layer
, 1, false, false);
973 intel_miptree_finish_write(brw
, mt
, level
, layer
, 1, false);
977 intel_miptree_prepare_texture(struct brw_context
*brw
,
978 struct intel_mipmap_tree
*mt
,
979 mesa_format view_format
,
980 bool *aux_supported_out
);
982 intel_miptree_prepare_image(struct brw_context
*brw
,
983 struct intel_mipmap_tree
*mt
);
985 intel_miptree_prepare_fb_fetch(struct brw_context
*brw
,
986 struct intel_mipmap_tree
*mt
, uint32_t level
,
987 uint32_t start_layer
, uint32_t num_layers
);
989 intel_miptree_prepare_render(struct brw_context
*brw
,
990 struct intel_mipmap_tree
*mt
, uint32_t level
,
991 uint32_t start_layer
, uint32_t layer_count
,
994 intel_miptree_finish_render(struct brw_context
*brw
,
995 struct intel_mipmap_tree
*mt
, uint32_t level
,
996 uint32_t start_layer
, uint32_t layer_count
);
998 intel_miptree_prepare_depth(struct brw_context
*brw
,
999 struct intel_mipmap_tree
*mt
, uint32_t level
,
1000 uint32_t start_layer
, uint32_t layer_count
);
1002 intel_miptree_finish_depth(struct brw_context
*brw
,
1003 struct intel_mipmap_tree
*mt
, uint32_t level
,
1004 uint32_t start_layer
, uint32_t layer_count
,
1005 bool depth_written
);
1008 intel_miptree_make_shareable(struct brw_context
*brw
,
1009 struct intel_mipmap_tree
*mt
);
1012 intel_miptree_updownsample(struct brw_context
*brw
,
1013 struct intel_mipmap_tree
*src
,
1014 struct intel_mipmap_tree
*dst
);
1017 intel_update_r8stencil(struct brw_context
*brw
,
1018 struct intel_mipmap_tree
*mt
);
1021 * Horizontal distance from one slice to the next in the two-dimensional
1025 brw_miptree_get_horizontal_slice_pitch(const struct brw_context
*brw
,
1026 const struct intel_mipmap_tree
*mt
,
1030 * Vertical distance from one slice to the next in the two-dimensional miptree
1034 brw_miptree_get_vertical_slice_pitch(const struct brw_context
*brw
,
1035 const struct intel_mipmap_tree
*mt
,
1039 brw_miptree_layout(struct brw_context
*brw
,
1040 struct intel_mipmap_tree
*mt
,
1041 uint32_t layout_flags
);
1044 intel_miptree_map(struct brw_context
*brw
,
1045 struct intel_mipmap_tree
*mt
,
1054 ptrdiff_t *out_stride
);
1057 intel_miptree_unmap(struct brw_context
*brw
,
1058 struct intel_mipmap_tree
*mt
,
1060 unsigned int slice
);
1063 intel_miptree_sample_with_hiz(struct brw_context
*brw
,
1064 struct intel_mipmap_tree
*mt
);