+++ /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_context.h"
-#include "intel_mipmap_tree.h"
-#include "intel_regions.h"
-#include "enums.h"
-
-#define FILE_DEBUG_FLAG DEBUG_MIPTREE
-
-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 intel_mipmap_tree *
-intel_miptree_create(struct intel_context *intel,
- 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 intel_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;
-
- switch (intel->intelScreen->deviceID) {
- case PCI_CHIP_I945_G:
- case PCI_CHIP_I945_GM:
- case PCI_CHIP_I945_GME:
- case PCI_CHIP_G33_G:
- case PCI_CHIP_Q33_G:
- case PCI_CHIP_Q35_G:
- ok = i945_miptree_layout(mt);
- break;
- case PCI_CHIP_I915_G:
- case PCI_CHIP_I915_GM:
- case PCI_CHIP_I830_M:
- case PCI_CHIP_I855_GM:
- case PCI_CHIP_I865_G:
- default:
- /* All the i830 chips and the i915 use this layout:
- */
- ok = i915_miptree_layout(mt);
- break;
- }
-
- if (ok) {
- if (!mt->compressed) {
- /* XXX: Align pitch to multiple of 64 bytes for now to allow
- * render-to-texture to work in all cases. This should probably be
- * replaced at some point by some scheme to only do this when really
- * necessary.
- */
- mt->pitch = (mt->pitch * cpp + 63) & ~63;
-
- /* XXX: At least the i915 seems very upset when the pitch is a multiple
- * of 1024 and sometimes 512 bytes - performance can drop by several
- * times. Go to the next multiple of 64 for now.
- */
- if (!(mt->pitch & 511))
- mt->pitch += 64;
-
- mt->pitch /= cpp;
- }
-
- mt->region = intel_region_alloc(intel->intelScreen,
- mt->cpp, mt->pitch, mt->total_height);
- }
-
- if (!mt->region) {
- free(mt);
- return NULL;
- }
-
- return mt;
-}
-
-
-void
-intel_miptree_reference(struct intel_mipmap_tree **dst,
- struct intel_mipmap_tree *src)
-{
- src->refcount++;
- *dst = src;
- DBG("%s %p refcount now %d\n", __FUNCTION__, src, src->refcount);
-}
-
-void
-intel_miptree_release(struct intel_context *intel,
- struct intel_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);
-
- intel_region_release(&((*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
-intel_miptree_match_image(struct intel_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;
-}
-
-
-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)
-{
-
- mt->level[level].width = w;
- mt->level[level].height = h;
- mt->level[level].depth = d;
- mt->level[level].level_offset = (x + y * mt->pitch) * mt->cpp;
- mt->level[level].nr_images = nr_images;
-
- DBG("%s level %d size: %d,%d,%d offset %d,%d (0x%x)\n", __FUNCTION__,
- level, w, h, d, x, y, mt->level[level].level_offset);
-
- /* Not sure when this would happen, but anyway:
- */
- if (mt->level[level].image_offset) {
- free(mt->level[level].image_offset);
- mt->level[level].image_offset = NULL;
- }
-
- assert(nr_images);
-
- mt->level[level].image_offset = malloc(nr_images * sizeof(GLuint));
- mt->level[level].image_offset[0] = 0;
-}
-
-
-
-void
-intel_miptree_set_image_offset(struct intel_mipmap_tree *mt,
- GLuint level, GLuint img, GLuint x, GLuint y)
-{
- if (img == 0 && level == 0)
- assert(x == 0 && y == 0);
-
- assert(img < mt->level[level].nr_images);
-
- mt->level[level].image_offset[img] = (x + y * mt->pitch);
-
- DBG("%s level %d img %d pos %d,%d image_offset %x\n",
- __FUNCTION__, level, img, x, y, mt->level[level].image_offset[img]);
-}
-
-
-/* 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 *
-intel_miptree_depth_offsets(struct intel_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
-intel_miptree_image_offset(struct intel_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 *
-intel_miptree_image_map(struct intel_context * intel,
- struct intel_mipmap_tree * mt,
- GLuint face,
- GLuint level,
- GLuint * row_stride, GLuint * image_offsets)
-{
- 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));
-
- return (intel_region_map(intel->intelScreen, mt->region) +
- intel_miptree_image_offset(mt, face, level));
-}
-
-void
-intel_miptree_image_unmap(struct intel_context *intel,
- struct intel_mipmap_tree *mt)
-{
- DBG("%s\n", __FUNCTION__);
- intel_region_unmap(intel->intelScreen, mt->region);
-}
-
-
-
-/* Upload data for a particular image.
- */
-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)
-{
- GLuint depth = dst->level[level].depth;
- GLuint dst_offset = intel_miptree_image_offset(dst, face, level);
- const GLuint *dst_depth_offset = intel_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;
- intel_region_data(intel->intelScreen, 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;
- }
-}
-
-extern GLuint intel_compressed_alignment(GLenum);
-/* Copy mipmap image between trees
- */
-void
-intel_miptree_image_copy(struct intel_context *intel,
- struct intel_mipmap_tree *dst,
- GLuint face, GLuint level,
- struct intel_mipmap_tree *src)
-{
- GLuint width = src->level[level].width;
- GLuint height = src->level[level].height;
- GLuint depth = src->level[level].depth;
- GLuint dst_offset = intel_miptree_image_offset(dst, face, level);
- GLuint src_offset = intel_miptree_image_offset(src, face, level);
- const GLuint *dst_depth_offset = intel_miptree_depth_offsets(dst, level);
- const GLuint *src_depth_offset = intel_miptree_depth_offsets(src, level);
- GLuint i;
-
- if (dst->compressed) {
- GLuint alignment = intel_compressed_alignment(dst->internal_format);
- height = (height + 3) / 4;
- width = ((width + alignment - 1) & ~(alignment - 1));
- }
-
- for (i = 0; i < depth; i++) {
- intel_region_copy(intel->intelScreen,
- dst->region, dst_offset + dst_depth_offset[i],
- 0,
- 0,
- src->region, src_offset + src_depth_offset[i],
- 0, 0, width, height);
- }
-
-}
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