--- /dev/null
+/**************************************************************************
+ *
+ * Copyright 2006 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#include "intel_mipmap_tree.h"
+#include "enums.h"
+
+#include "pipe/p_state.h"
+#include "pipe/p_context.h"
+
+
+#define DBG if(0) printf
+
+static GLenum
+target_to_target(GLenum target)
+{
+ switch (target) {
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
+ return GL_TEXTURE_CUBE_MAP_ARB;
+ default:
+ return target;
+ }
+}
+
+struct pipe_mipmap_tree *
+st_miptree_create(struct pipe_context *pipe,
+ GLenum target,
+ GLenum internal_format,
+ GLuint first_level,
+ GLuint last_level,
+ GLuint width0,
+ GLuint height0,
+ GLuint depth0, GLuint cpp, GLuint compress_byte)
+{
+ GLboolean ok;
+ struct pipe_mipmap_tree *mt = calloc(sizeof(*mt), 1);
+
+ DBG("%s target %s format %s level %d..%d\n", __FUNCTION__,
+ _mesa_lookup_enum_by_nr(target),
+ _mesa_lookup_enum_by_nr(internal_format), first_level, last_level);
+
+ mt->target = target_to_target(target);
+ mt->internal_format = internal_format;
+ mt->first_level = first_level;
+ mt->last_level = last_level;
+ mt->width0 = width0;
+ mt->height0 = height0;
+ mt->depth0 = depth0;
+ mt->cpp = compress_byte ? compress_byte : cpp;
+ mt->compressed = compress_byte ? 1 : 0;
+ mt->refcount = 1;
+
+ ok = pipe->mipmap_tree_layout(pipe, mt);
+ if (ok)
+ mt->region = pipe->region_alloc(pipe,
+ mt->cpp, mt->pitch, mt->total_height);
+
+ if (!mt->region) {
+ free(mt);
+ return NULL;
+ }
+
+ return mt;
+}
+
+
+void
+st_miptree_reference(struct pipe_mipmap_tree **dst,
+ struct pipe_mipmap_tree *src)
+{
+ src->refcount++;
+ *dst = src;
+ DBG("%s %p refcount now %d\n", __FUNCTION__, src, src->refcount);
+}
+
+void
+st_miptree_release(struct pipe_context *pipe,
+ struct pipe_mipmap_tree **mt)
+{
+ if (!*mt)
+ return;
+
+ DBG("%s %p refcount will be %d\n", __FUNCTION__, *mt, (*mt)->refcount - 1);
+ if (--(*mt)->refcount <= 0) {
+ GLuint i;
+
+ DBG("%s deleting %p\n", __FUNCTION__, *mt);
+
+ pipe->region_release(pipe, &((*mt)->region));
+
+ for (i = 0; i < MAX_TEXTURE_LEVELS; i++)
+ if ((*mt)->level[i].image_offset)
+ free((*mt)->level[i].image_offset);
+
+ free(*mt);
+ }
+ *mt = NULL;
+}
+
+
+
+
+/* Can the image be pulled into a unified mipmap tree. This mirrors
+ * the completeness test in a lot of ways.
+ *
+ * Not sure whether I want to pass gl_texture_image here.
+ */
+GLboolean
+st_miptree_match_image(struct pipe_mipmap_tree *mt,
+ struct gl_texture_image *image,
+ GLuint face, GLuint level)
+{
+ /* Images with borders are never pulled into mipmap trees.
+ */
+ if (image->Border)
+ return GL_FALSE;
+
+ if (image->InternalFormat != mt->internal_format ||
+ image->IsCompressed != mt->compressed)
+ return GL_FALSE;
+
+ /* Test image dimensions against the base level image adjusted for
+ * minification. This will also catch images not present in the
+ * tree, changed targets, etc.
+ */
+ if (image->Width != mt->level[level].width ||
+ image->Height != mt->level[level].height ||
+ image->Depth != mt->level[level].depth)
+ return GL_FALSE;
+
+ return GL_TRUE;
+}
+
+
+/* Although we use the image_offset[] array to store relative offsets
+ * to cube faces, Mesa doesn't know anything about this and expects
+ * each cube face to be treated as a separate image.
+ *
+ * These functions present that view to mesa:
+ */
+const GLuint *
+st_miptree_depth_offsets(struct pipe_mipmap_tree *mt, GLuint level)
+{
+ static const GLuint zero = 0;
+
+ if (mt->target != GL_TEXTURE_3D || mt->level[level].nr_images == 1)
+ return &zero;
+ else
+ return mt->level[level].image_offset;
+}
+
+
+GLuint
+st_miptree_image_offset(struct pipe_mipmap_tree * mt,
+ GLuint face, GLuint level)
+{
+ if (mt->target == GL_TEXTURE_CUBE_MAP_ARB)
+ return (mt->level[level].level_offset +
+ mt->level[level].image_offset[face] * mt->cpp);
+ else
+ return mt->level[level].level_offset;
+}
+
+
+
+/**
+ * Map a teximage in a mipmap tree.
+ * \param row_stride returns row stride in bytes
+ * \param image_stride returns image stride in bytes (for 3D textures).
+ * \return address of mapping
+ */
+GLubyte *
+st_miptree_image_map(struct pipe_context *pipe,
+ struct pipe_mipmap_tree * mt,
+ GLuint face,
+ GLuint level,
+ GLuint * row_stride, GLuint * image_offsets)
+{
+ GLubyte *ptr;
+ DBG("%s \n", __FUNCTION__);
+
+ if (row_stride)
+ *row_stride = mt->pitch * mt->cpp;
+
+ if (image_offsets)
+ memcpy(image_offsets, mt->level[level].image_offset,
+ mt->level[level].depth * sizeof(GLuint));
+
+ ptr = pipe->region_map(pipe, mt->region);
+
+ return ptr + st_miptree_image_offset(mt, face, level);
+}
+
+void
+st_miptree_image_unmap(struct pipe_context *pipe,
+ struct pipe_mipmap_tree *mt)
+{
+ DBG("%s\n", __FUNCTION__);
+ pipe->region_unmap(pipe, mt->region);
+}
+
+
+
+/* Upload data for a particular image.
+ */
+void
+st_miptree_image_data(struct pipe_context *pipe,
+ struct pipe_mipmap_tree *dst,
+ GLuint face,
+ GLuint level,
+ void *src,
+ GLuint src_row_pitch, GLuint src_image_pitch)
+{
+ GLuint depth = dst->level[level].depth;
+ GLuint dst_offset = st_miptree_image_offset(dst, face, level);
+ const GLuint *dst_depth_offset = st_miptree_depth_offsets(dst, level);
+ GLuint i;
+ GLuint height = 0;
+
+ DBG("%s\n", __FUNCTION__);
+ for (i = 0; i < depth; i++) {
+ height = dst->level[level].height;
+ if(dst->compressed)
+ height /= 4;
+ pipe->region_data(pipe, dst->region,
+ dst_offset + dst_depth_offset[i], /* dst_offset */
+ 0, 0, /* dstx, dsty */
+ src,
+ src_row_pitch,
+ 0, 0, /* source x, y */
+ dst->level[level].width, height); /* width, height */
+
+ src += src_image_pitch * dst->cpp;
+ }
+}
+
+/* Copy mipmap image between trees
+ */
+void
+st_miptree_image_copy(struct pipe_context *pipe,
+ struct pipe_mipmap_tree *dst,
+ GLuint face, GLuint level,
+ struct pipe_mipmap_tree *src)
+{
+ GLuint width = src->level[level].width;
+ GLuint height = src->level[level].height;
+ GLuint depth = src->level[level].depth;
+ GLuint dst_offset = st_miptree_image_offset(dst, face, level);
+ GLuint src_offset = st_miptree_image_offset(src, face, level);
+ const GLuint *dst_depth_offset = st_miptree_depth_offsets(dst, level);
+ const GLuint *src_depth_offset = st_miptree_depth_offsets(src, level);
+ GLuint i;
+
+ if (dst->compressed)
+ height /= 4;
+ for (i = 0; i < depth; i++) {
+ pipe->region_copy(pipe,
+ dst->region, dst_offset + dst_depth_offset[i],
+ 0,
+ 0,
+ src->region, src_offset + src_depth_offset[i],
+ 0, 0, width, height);
+ }
+
+}
--- /dev/null
+/**************************************************************************
+ *
+ * Copyright 2006 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#ifndef INTEL_MIPMAP_TREE_H
+#define INTEL_MIPMAP_TREE_H
+
+
+#include "main/mtypes.h"
+
+struct pipe_context;
+struct pipe_mipmap_tree;
+struct pipe_region;
+
+
+struct pipe_mipmap_tree *st_miptree_create(struct pipe_context *pipe,
+ GLenum target,
+ GLenum internal_format,
+ GLuint first_level,
+ GLuint last_level,
+ GLuint width0,
+ GLuint height0,
+ GLuint depth0,
+ GLuint cpp,
+ GLuint compress_byte);
+
+void st_miptree_reference(struct pipe_mipmap_tree **dst,
+ struct pipe_mipmap_tree *src);
+
+void st_miptree_release(struct pipe_context *pipe,
+ struct pipe_mipmap_tree **mt);
+
+/* Check if an image fits an existing mipmap tree layout
+ */
+GLboolean st_miptree_match_image(struct pipe_mipmap_tree *mt,
+ struct gl_texture_image *image,
+ GLuint face, GLuint level);
+
+/* Return a pointer to an image within a tree. Return image stride as
+ * well.
+ */
+GLubyte *st_miptree_image_map(struct pipe_context *pipe,
+ struct pipe_mipmap_tree *mt,
+ GLuint face,
+ GLuint level,
+ GLuint * row_stride, GLuint * image_stride);
+
+void st_miptree_image_unmap(struct pipe_context *pipe,
+ struct pipe_mipmap_tree *mt);
+
+
+/* Return the linear offset of an image relative to the start of the
+ * tree:
+ */
+GLuint st_miptree_image_offset(struct pipe_mipmap_tree *mt,
+ GLuint face, GLuint level);
+
+/* Return pointers to each 2d slice within an image. Indexed by depth
+ * value.
+ */
+const GLuint *st_miptree_depth_offsets(struct pipe_mipmap_tree *mt,
+ GLuint level);
+
+
+/* Upload an image into a tree
+ */
+void st_miptree_image_data(struct pipe_context *pipe,
+ struct pipe_mipmap_tree *dst,
+ GLuint face,
+ GLuint level,
+ void *src,
+ GLuint src_row_pitch, GLuint src_image_pitch);
+
+/* Copy an image between two trees
+ */
+void st_miptree_image_copy(struct pipe_context *pipe,
+ struct pipe_mipmap_tree *dst,
+ GLuint face, GLuint level,
+ struct pipe_mipmap_tree *src);
+
+
+#endif
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