#ifndef INTEL_MIPMAP_TREE_H
#define INTEL_MIPMAP_TREE_H
+#include <assert.h>
+
#include "intel_regions.h"
+#include "intel_resolve_map.h"
/* A layer on top of the intel_regions code which adds:
*
* temporary system buffers.
*/
+struct intel_resolve_map;
+struct intel_texture_image;
/**
* 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;
+ /** \} */
+ } *slice;
};
struct intel_mipmap_tree
GLuint width0, height0, depth0; /**< Level zero image dimensions */
GLuint cpp;
- GLboolean compressed;
+ bool compressed;
/* Derived from the above:
*/
struct intel_region *region;
/**
- * 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 HiZ miptree
+ *
+ * This is non-null only if HiZ is enabled for this miptree.
+ *
+ * \see intel_miptree_alloc_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;
+
+ /**
+ * \brief Stencil miptree for depthstencil textures.
*
- * 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.
+ * This miptree is used for depthstencil textures that require separate
+ * stencil. The stencil miptree's data is the golden copy of the
+ * parent miptree's stencil bits. When necessary, we scatter/gather the
+ * stencil bits between the parent miptree and the stencil miptree.
*
- * \see intel_fbo.c:intel_wrap_texture()
+ * \see intel_miptree_s8z24_scatter()
+ * \see intel_miptree_s8z24_gather()
*/
- struct intel_region *hiz_region;
+ struct intel_mipmap_tree *stencil_mt;
/* These are also refcounted:
*/
GLuint width0,
GLuint height0,
GLuint depth0,
- GLboolean expect_accelerated_upload);
+ bool expect_accelerated_upload);
struct intel_mipmap_tree *
intel_miptree_create_for_region(struct intel_context *intel,
GLenum target,
gl_format format,
- struct intel_region *region,
- GLuint depth0);
+ 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 tiling,
+ uint32_t cpp,
+ uint32_t width,
+ uint32_t height);
+
+/** \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 *x, GLuint *y);
+void
+intel_miptree_get_dimensions_for_image(struct gl_texture_image *image,
+ int *width, int *height, int *depth);
+
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);
+
+/**
+ * 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);
+
+/**
+ * \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.
*/
-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
+
+/**
+ * \brief Allocate the miptree's embedded HiZ miptree.
+ * \see intel_mipmap_tree:hiz_mt
+ * \return false if allocation failed
*/
-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_alloc_hiz(struct intel_context *intel,
+ struct intel_mipmap_tree *mt);
+
+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);
+void
+intel_miptree_all_slices_set_need_hiz_resolve(struct intel_mipmap_tree *mt);
+
+void
+intel_miptree_all_slices_set_need_depth_resolve(struct intel_mipmap_tree *mt);
+
+/**
+ * \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
+ */
+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
+ */
+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);
+
+/**\}*/
/* i915_mipmap_tree.c:
*/
-GLboolean i915_miptree_layout(struct intel_mipmap_tree *mt);
-GLboolean i945_miptree_layout(struct intel_mipmap_tree *mt);
-GLboolean brw_miptree_layout(struct intel_context *intel,
- struct intel_mipmap_tree *mt);
+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);
#endif
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