diff options
Diffstat (limited to 'src/mesa/drivers/dri/i915/intel_mipmap_tree.c')
l---------[-rw-r--r--] | src/mesa/drivers/dri/i915/intel_mipmap_tree.c | 389 |
1 files changed, 1 insertions, 388 deletions
diff --git a/src/mesa/drivers/dri/i915/intel_mipmap_tree.c b/src/mesa/drivers/dri/i915/intel_mipmap_tree.c index 2c167a9..242fed0 100644..120000 --- a/src/mesa/drivers/dri/i915/intel_mipmap_tree.c +++ b/src/mesa/drivers/dri/i915/intel_mipmap_tree.c @@ -1,388 +1 @@ -/************************************************************************** - * - * 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) { - int align; - - if (intel->intelScreen->ttm) { - /* 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. - */ - align = 63; - } else { - align = 3; - } - - mt->pitch = (mt->pitch * cpp + align) & ~align; - - /* 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 the required alignment for now. - */ - if (!(mt->pitch & 511)) - mt->pitch += align + 1; - - 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); - } - -} +../intel/intel_mipmap_tree.c
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