#ifndef INTEL_MIPMAP_TREE_H
#define INTEL_MIPMAP_TREE_H
+#include <assert.h>
+
#include "intel_regions.h"
+#include "intel_resolve_map.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
/* A layer on top of the intel_regions code which adds:
*
* temporary system buffers.
*/
+struct intel_resolve_map;
+struct intel_texture_image;
+
+/**
+ * When calling intel_miptree_map() on an ETC-transcoded-to-RGB miptree or a
+ * depthstencil-split-to-separate-stencil miptree, we'll normally make a
+ * tmeporary and recreate the kind of data requested by Mesa core, since we're
+ * satisfying some glGetTexImage() request or something.
+ *
+ * However, occasionally you want to actually map the miptree's current data
+ * without transcoding back. This flag to intel_miptree_map() gets you that.
+ */
+#define BRW_MAP_DIRECT_BIT 0x80000000
+
+struct intel_miptree_map {
+ /** Bitfield of GL_MAP_READ_BIT, GL_MAP_WRITE_BIT, GL_MAP_INVALIDATE_BIT */
+ GLbitfield mode;
+ /** Region of interest for the map. */
+ int x, y, w, h;
+ /** Possibly malloced temporary buffer for the mapping. */
+ void *buffer;
+ /** Possible pointer to a BO temporary for the mapping. */
+ drm_intel_bo *bo;
+ /** Pointer to the start of (map_x, map_y) returned by the mapping. */
+ void *ptr;
+ /** Stride of the mapping. */
+ int stride;
+
+ /**
+ * intel_mipmap_tree::singlesample_mt is temporary storage that persists
+ * only for the duration of the map.
+ */
+ bool singlesample_mt_is_tmp;
+};
/**
* Describes the location of each texture image within a texture region.
GLuint level_y;
GLuint width;
GLuint height;
- /** Depth of the mipmap at this level: 1 for 1D/2D/CUBE, n for 3D. */
+
+ /**
+ * \brief Number of 2D slices in this miplevel.
+ *
+ * The exact semantics of depth varies according to the texture target:
+ * - For GL_TEXTURE_CUBE_MAP, depth is 6.
+ * - For GL_TEXTURE_2D_ARRAY, depth is the number of array slices. It is
+ * identical for all miplevels in the texture.
+ * - For GL_TEXTURE_3D, it is the texture's depth at this miplevel. Its
+ * value, like width and height, varies with miplevel.
+ * - For other texture types, depth is 1.
+ */
GLuint depth;
- /** Number of images at this level: 1 for 1D/2D, 6 for CUBE, depth for 3D */
- GLuint nr_images;
- /** @{
- * offsets from level_[xy] to the image for each cube face or depth
- * level.
+ /**
+ * \brief List of 2D images in this mipmap level.
*
- * Pretty much have to accept that hardware formats
- * are going to be so diverse that there is no unified way to
- * compute the offsets of depth/cube images within a mipmap level,
- * so have to store them as a lookup table.
+ * This may be a list of cube faces, array slices in 2D array texture, or
+ * layers in a 3D texture. The list's length is \c depth.
*/
- GLuint *x_offset, *y_offset;
- /** @} */
+ struct intel_mipmap_slice {
+ /**
+ * \name Offset to slice
+ * \{
+ *
+ * Hardware formats are so diverse that that there is no unified way to
+ * compute the slice offsets, so we store them in this table.
+ *
+ * The (x, y) offset to slice \c s at level \c l relative the miptrees
+ * base address is
+ * \code
+ * x = mt->level[l].slice[s].x_offset
+ * y = mt->level[l].slice[s].y_offset
+ */
+ GLuint x_offset;
+ GLuint y_offset;
+ /** \} */
+
+ /**
+ * Mapping information. Persistent for the duration of
+ * intel_miptree_map/unmap on this slice.
+ */
+ struct intel_miptree_map *map;
+
+ /**
+ * \brief Is HiZ enabled for this slice?
+ *
+ * If \c mt->level[l].slice[s].has_hiz is set, then (1) \c mt->hiz_mt
+ * has been allocated and (2) the HiZ memory corresponding to this slice
+ * resides at \c mt->hiz_mt->level[l].slice[s].
+ */
+ bool has_hiz;
+ } *slice;
+};
+
+/**
+ * Enum for keeping track of the different MSAA layouts supported by Gen7.
+ */
+enum intel_msaa_layout
+{
+ /**
+ * Ordinary surface with no MSAA.
+ */
+ INTEL_MSAA_LAYOUT_NONE,
+
+ /**
+ * Interleaved Multisample Surface. The additional samples are
+ * accommodated by scaling up the width and the height of the surface so
+ * that all the samples corresponding to a pixel are located at nearby
+ * memory locations.
+ */
+ INTEL_MSAA_LAYOUT_IMS,
+
+ /**
+ * Uncompressed Multisample Surface. The surface is stored as a 2D array,
+ * with array slice n containing all pixel data for sample n.
+ */
+ INTEL_MSAA_LAYOUT_UMS,
+
+ /**
+ * Compressed Multisample Surface. The surface is stored as in
+ * INTEL_MSAA_LAYOUT_UMS, but there is an additional buffer called the MCS
+ * (Multisample Control Surface) buffer. Each pixel in the MCS buffer
+ * indicates the mapping from sample number to array slice. This allows
+ * the common case (where all samples constituting a pixel have the same
+ * color value) to be stored efficiently by just using a single array
+ * slice.
+ */
+ INTEL_MSAA_LAYOUT_CMS,
};
struct intel_mipmap_tree
/* Effectively the key:
*/
GLenum target;
+
+ /**
+ * Generally, this is just the same as the gl_texture_image->TexFormat or
+ * gl_renderbuffer->Format.
+ *
+ * However, for textures and renderbuffers with packed depth/stencil formats
+ * on hardware where we want or need to use separate stencil, there will be
+ * two miptrees for storing the data. If the depthstencil texture or rb is
+ * MESA_FORMAT_Z32_FLOAT_X24S8, then mt->format will be
+ * MESA_FORMAT_Z32_FLOAT, otherwise for MESA_FORMAT_S8_Z24 objects it will be
+ * MESA_FORMAT_X8_Z24.
+ *
+ * For ETC1/ETC2 textures, this is one of the uncompressed mesa texture
+ * formats if the hardware lacks support for ETC1/ETC2. See @ref wraps_etc.
+ */
gl_format format;
+ /** This variable stores the value of ETC compressed texture format */
+ gl_format etc_format;
+
+ /**
+ * The X offset of each image in the miptree must be aligned to this. See
+ * the "Alignment Unit Size" section of the BSpec.
+ */
+ unsigned int align_w;
+ unsigned int align_h; /**< \see align_w */
+
GLuint first_level;
GLuint last_level;
- GLuint width0, height0, depth0; /**< Level zero image dimensions */
+ /**
+ * Level zero image dimensions. These dimensions correspond to the
+ * physical layout of data in memory. Accordingly, they account for the
+ * extra width, height, and or depth that must be allocated in order to
+ * accommodate multisample formats, and they account for the extra factor
+ * of 6 in depth that must be allocated in order to accommodate cubemap
+ * textures.
+ */
+ GLuint physical_width0, physical_height0, physical_depth0;
+
GLuint cpp;
- GLboolean compressed;
+ GLuint num_samples;
+ bool compressed;
+
+ /**
+ * Level zero image dimensions. These dimensions correspond to the
+ * logical width, height, and depth of the region as seen by client code.
+ * Accordingly, they do not account for the extra width, height, and/or
+ * depth that must be allocated in order to accommodate multisample
+ * formats, nor do they account for the extra factor of 6 in depth that
+ * must be allocated in order to accommodate cubemap textures.
+ */
+ uint32_t logical_width0, logical_height0, logical_depth0;
+
+ /**
+ * For 1D array, 2D array, cube, and 2D multisampled surfaces on Gen7: true
+ * if the surface only contains LOD 0, and hence no space is for LOD's
+ * other than 0 in between array slices.
+ *
+ * Corresponds to the surface_array_spacing bit in gen7_surface_state.
+ */
+ bool array_spacing_lod0;
+
+ /**
+ * MSAA layout used by this buffer.
+ */
+ enum intel_msaa_layout msaa_layout;
/* Derived from the above:
*/
GLuint total_width;
GLuint total_height;
+ /* The 3DSTATE_CLEAR_PARAMS value associated with the last depth clear to
+ * this depth mipmap tree, if any.
+ */
+ uint32_t depth_clear_value;
+
/* Includes image offset tables:
*/
struct intel_mipmap_level level[MAX_TEXTURE_LEVELS];
*/
struct intel_region *region;
+ /* Offset into region bo where miptree starts:
+ */
+ uint32_t offset;
+
+ /**
+ * \brief Singlesample miptree.
+ *
+ * This is used under two cases.
+ *
+ * --- Case 1: As persistent singlesample storage for multisample window
+ * system front and back buffers ---
+ *
+ * Suppose that the window system FBO was created with a multisample
+ * config. Let `back_irb` be the `intel_renderbuffer` for the FBO's back
+ * buffer. Then `back_irb` contains two miptrees: a parent multisample
+ * miptree (back_irb->mt) and a child singlesample miptree
+ * (back_irb->mt->singlesample_mt). The DRM buffer shared with DRI2
+ * belongs to `back_irb->mt->singlesample_mt` and contains singlesample
+ * data. The singlesample miptree is created at the same time as and
+ * persists for the lifetime of its parent multisample miptree.
+ *
+ * When access to the singlesample data is needed, such as at
+ * eglSwapBuffers and glReadPixels, an automatic downsample occurs from
+ * `back_rb->mt` to `back_rb->mt->singlesample_mt` when necessary.
+ *
+ * This description of the back buffer applies analogously to the front
+ * buffer.
+ *
+ *
+ * --- Case 2: As temporary singlesample storage for mapping multisample
+ * miptrees ---
+ *
+ * Suppose the intel_miptree_map is called on a multisample miptree, `mt`,
+ * for which case 1 does not apply (that is, `mt` does not belong to
+ * a front or back buffer). Then `mt->singlesample_mt` is null at the
+ * start of the call. intel_miptree_map will create a temporary
+ * singlesample miptree, store it at `mt->singlesample_mt`, downsample from
+ * `mt` to `mt->singlesample_mt` if necessary, then map
+ * `mt->singlesample_mt`. The temporary miptree is later deleted during
+ * intel_miptree_unmap.
+ */
+ struct intel_mipmap_tree *singlesample_mt;
+
+ /**
+ * \brief A downsample is needed from this miptree to singlesample_mt.
+ */
+ bool need_downsample;
+
+ /**
+ * \brief HiZ miptree
+ *
+ * The hiz miptree contains the miptree's hiz buffer. To allocate the hiz
+ * miptree, use intel_miptree_alloc_hiz().
+ *
+ * To determine if hiz is enabled, do not check this pointer. Instead, use
+ * intel_miptree_slice_has_hiz().
+ */
+ struct intel_mipmap_tree *hiz_mt;
+
+ /**
+ * \brief Map of miptree slices to needed resolves.
+ *
+ * This is used only when the miptree has a child HiZ miptree.
+ *
+ * Let \c mt be a depth miptree with HiZ enabled. Then the resolve map is
+ * \c mt->hiz_map. The resolve map of the child HiZ miptree, \c
+ * mt->hiz_mt->hiz_map, is unused.
+ */
+ struct intel_resolve_map hiz_map;
+
/**
- * This points to an auxillary hiz region if all of the following hold:
- * 1. The texture has been attached to an FBO as a depthbuffer.
- * 2. The texture format is hiz compatible.
- * 3. The intel context supports hiz.
+ * \brief Stencil miptree for depthstencil textures.
+ *
+ * This miptree is used for depthstencil textures and renderbuffers that
+ * require separate stencil. It always has the true copy of the stencil
+ * bits, regardless of mt->format.
*
- * When a texture is attached to multiple FBO's, a separate renderbuffer
- * wrapper is created for each attachment. This necessitates storing the
- * hiz region in the texture itself instead of the renderbuffer wrapper.
+ * \see intel_miptree_map_depthstencil()
+ * \see intel_miptree_unmap_depthstencil()
+ */
+ struct intel_mipmap_tree *stencil_mt;
+
+ /**
+ * \brief MCS miptree for multisampled textures.
*
- * \see intel_fbo.c:intel_wrap_texture()
+ * This miptree contains the "multisample control surface", which stores
+ * the necessary information to implement compressed MSAA on Gen7+
+ * (INTEL_MSAA_FORMAT_CMS).
*/
- struct intel_region *hiz_region;
+ struct intel_mipmap_tree *mcs_mt;
/* These are also refcounted:
*/
struct intel_mipmap_tree *intel_miptree_create(struct intel_context *intel,
GLenum target,
gl_format format,
- GLenum base_format,
GLuint first_level,
GLuint last_level,
GLuint width0,
GLuint height0,
GLuint depth0,
- GLuint cpp,
- GLuint compress_byte,
- GLboolean expect_accelerated_upload);
+ bool expect_accelerated_upload,
+ GLuint num_samples,
+ bool force_y_tiling);
+
+struct intel_mipmap_tree *
+intel_miptree_create_layout(struct intel_context *intel,
+ GLenum target,
+ gl_format format,
+ GLuint first_level,
+ GLuint last_level,
+ GLuint width0,
+ GLuint height0,
+ GLuint depth0,
+ bool for_region,
+ GLuint num_samples);
struct intel_mipmap_tree *
intel_miptree_create_for_region(struct intel_context *intel,
GLenum target,
gl_format format,
- struct intel_region *region,
- GLuint depth0,
- GLuint compress_byte);
+ struct intel_region *region);
+
+struct intel_mipmap_tree*
+intel_miptree_create_for_dri2_buffer(struct intel_context *intel,
+ unsigned dri_attachment,
+ gl_format format,
+ uint32_t num_samples,
+ struct intel_region *region);
+
+/**
+ * Create a miptree appropriate as the storage for a non-texture renderbuffer.
+ * The miptree has the following properties:
+ * - The target is GL_TEXTURE_2D.
+ * - There are no levels other than the base level 0.
+ * - Depth is 1.
+ */
+struct intel_mipmap_tree*
+intel_miptree_create_for_renderbuffer(struct intel_context *intel,
+ gl_format format,
+ uint32_t width,
+ uint32_t height,
+ uint32_t num_samples);
+
+/** \brief Assert that the level and layer are valid for the miptree. */
+static inline void
+intel_miptree_check_level_layer(struct intel_mipmap_tree *mt,
+ uint32_t level,
+ uint32_t layer)
+{
+ assert(level >= mt->first_level);
+ assert(level <= mt->last_level);
+ assert(layer < mt->level[level].depth);
+}
int intel_miptree_pitch_align (struct intel_context *intel,
struct intel_mipmap_tree *mt,
void intel_miptree_reference(struct intel_mipmap_tree **dst,
struct intel_mipmap_tree *src);
-void intel_miptree_release(struct intel_context *intel,
- struct intel_mipmap_tree **mt);
+void intel_miptree_release(struct intel_mipmap_tree **mt);
/* Check if an image fits an existing mipmap tree layout
*/
-GLboolean intel_miptree_match_image(struct intel_mipmap_tree *mt,
+bool intel_miptree_match_image(struct intel_mipmap_tree *mt,
struct gl_texture_image *image);
-/* Return a pointer to an image within a tree. Return image stride as
- * well.
- */
-GLubyte *intel_miptree_image_map(struct intel_context *intel,
- struct intel_mipmap_tree *mt,
- GLuint face,
- GLuint level,
- GLuint * row_stride, GLuint * image_stride);
-
-void intel_miptree_image_unmap(struct intel_context *intel,
- struct intel_mipmap_tree *mt);
-
void
intel_miptree_get_image_offset(struct intel_mipmap_tree *mt,
- GLuint level, GLuint face, GLuint depth,
+ GLuint level, GLuint slice,
GLuint *x, GLuint *y);
+void
+intel_miptree_get_dimensions_for_image(struct gl_texture_image *image,
+ int *width, int *height, int *depth);
+
+void
+intel_miptree_get_tile_offsets(struct intel_mipmap_tree *mt,
+ GLuint level, GLuint slice,
+ uint32_t *tile_x,
+ uint32_t *tile_y);
+
void intel_miptree_set_level_info(struct intel_mipmap_tree *mt,
GLuint level,
- GLuint nr_images,
GLuint x, GLuint y,
GLuint w, GLuint h, GLuint d);
GLuint level,
GLuint img, GLuint x, GLuint y);
-/* Upload an image into a tree
+void
+intel_miptree_copy_teximage(struct intel_context *intel,
+ struct intel_texture_image *intelImage,
+ struct intel_mipmap_tree *dst_mt, bool invalidate);
+
+/**
+ * Copy the stencil data from \c mt->stencil_mt->region to \c mt->region for
+ * the given miptree slice.
+ *
+ * \see intel_mipmap_tree::stencil_mt
+ */
+void
+intel_miptree_s8z24_scatter(struct intel_context *intel,
+ struct intel_mipmap_tree *mt,
+ uint32_t level,
+ uint32_t slice);
+
+/**
+ * Copy the stencil data in \c mt->stencil_mt->region to \c mt->region for the
+ * given miptree slice.
+ *
+ * \see intel_mipmap_tree::stencil_mt
+ */
+void
+intel_miptree_s8z24_gather(struct intel_context *intel,
+ struct intel_mipmap_tree *mt,
+ uint32_t level,
+ uint32_t layer);
+
+bool
+intel_miptree_alloc_mcs(struct intel_context *intel,
+ struct intel_mipmap_tree *mt,
+ GLuint num_samples);
+
+/**
+ * \name Miptree HiZ functions
+ * \{
+ *
+ * It is safe to call the "slice_set_need_resolve" and "slice_resolve"
+ * functions on a miptree without HiZ. In that case, each function is a no-op.
+ */
+
+/**
+ * \brief Allocate the miptree's embedded HiZ miptree.
+ * \see intel_mipmap_tree:hiz_mt
+ * \return false if allocation failed
+ */
+
+bool
+intel_miptree_alloc_hiz(struct intel_context *intel,
+ struct intel_mipmap_tree *mt);
+
+bool
+intel_miptree_slice_has_hiz(struct intel_mipmap_tree *mt,
+ uint32_t level,
+ uint32_t layer);
+
+void
+intel_miptree_slice_set_needs_hiz_resolve(struct intel_mipmap_tree *mt,
+ uint32_t level,
+ uint32_t depth);
+void
+intel_miptree_slice_set_needs_depth_resolve(struct intel_mipmap_tree *mt,
+ uint32_t level,
+ uint32_t depth);
+
+/**
+ * \return false if no resolve was needed
+ */
+bool
+intel_miptree_slice_resolve_hiz(struct intel_context *intel,
+ struct intel_mipmap_tree *mt,
+ unsigned int level,
+ unsigned int depth);
+
+/**
+ * \return false if no resolve was needed
*/
-void intel_miptree_image_data(struct intel_context *intel,
- struct intel_mipmap_tree *dst,
- GLuint face,
- GLuint level,
- void *src,
- GLuint src_row_pitch, GLuint src_image_pitch);
-
-/* Copy an image between two trees
+bool
+intel_miptree_slice_resolve_depth(struct intel_context *intel,
+ struct intel_mipmap_tree *mt,
+ unsigned int level,
+ unsigned int depth);
+
+/**
+ * \return false if no resolve was needed
*/
-void intel_miptree_image_copy(struct intel_context *intel,
- struct intel_mipmap_tree *dst,
- GLuint face, GLuint level,
- struct intel_mipmap_tree *src);
+bool
+intel_miptree_all_slices_resolve_hiz(struct intel_context *intel,
+ struct intel_mipmap_tree *mt);
+
+/**
+ * \return false if no resolve was needed
+ */
+bool
+intel_miptree_all_slices_resolve_depth(struct intel_context *intel,
+ struct intel_mipmap_tree *mt);
+
+/**\}*/
+
+void
+intel_miptree_downsample(struct intel_context *intel,
+ struct intel_mipmap_tree *mt);
+
+void
+intel_miptree_upsample(struct intel_context *intel,
+ struct intel_mipmap_tree *mt);
/* i915_mipmap_tree.c:
*/
-GLboolean i915_miptree_layout(struct intel_context *intel,
- struct intel_mipmap_tree *mt,
- uint32_t tiling);
-GLboolean i945_miptree_layout(struct intel_context *intel,
- struct intel_mipmap_tree *mt,
- uint32_t tiling);
-GLboolean brw_miptree_layout(struct intel_context *intel,
- struct intel_mipmap_tree *mt,
- uint32_t tiling);
+void i915_miptree_layout(struct intel_mipmap_tree *mt);
+void i945_miptree_layout(struct intel_mipmap_tree *mt);
+void brw_miptree_layout(struct intel_context *intel,
+ struct intel_mipmap_tree *mt);
+
+void *intel_miptree_map_raw(struct intel_context *intel,
+ struct intel_mipmap_tree *mt);
+
+void intel_miptree_unmap_raw(struct intel_context *intel,
+ struct intel_mipmap_tree *mt);
+
+void
+intel_miptree_map(struct intel_context *intel,
+ struct intel_mipmap_tree *mt,
+ unsigned int level,
+ unsigned int slice,
+ unsigned int x,
+ unsigned int y,
+ unsigned int w,
+ unsigned int h,
+ GLbitfield mode,
+ void **out_ptr,
+ int *out_stride);
+
+void
+intel_miptree_unmap(struct intel_context *intel,
+ struct intel_mipmap_tree *mt,
+ unsigned int level,
+ unsigned int slice);
+
+#ifdef I915
+static inline void
+intel_hiz_exec(struct intel_context *intel, struct intel_mipmap_tree *mt,
+ unsigned int level, unsigned int layer, enum gen6_hiz_op op)
+{
+ /* Stub on i915. It would be nice if we didn't execute resolve code at all
+ * there.
+ */
+}
+#else
+void
+intel_hiz_exec(struct intel_context *intel, struct intel_mipmap_tree *mt,
+ unsigned int level, unsigned int layer, enum gen6_hiz_op op);
+#endif
+
+#ifdef __cplusplus
+}
+#endif
#endif
projects / mesa.git / blobdiff