diff options
Diffstat (limited to 'src/mesa/drivers/dri/i915/intel_mipmap_tree.c')
| -rw-r--r-- | src/mesa/drivers/dri/i915/intel_mipmap_tree.c | 910 |
1 files changed, 0 insertions, 910 deletions
diff --git a/src/mesa/drivers/dri/i915/intel_mipmap_tree.c b/src/mesa/drivers/dri/i915/intel_mipmap_tree.c deleted file mode 100644 index 9a9f08b0a4a..00000000000 --- a/src/mesa/drivers/dri/i915/intel_mipmap_tree.c +++ /dev/null @@ -1,910 +0,0 @@ -/************************************************************************** - * - * Copyright 2006 VMware, Inc. - * 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 VMWARE 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 <GL/gl.h> -#include <GL/internal/dri_interface.h> - -#include "intel_batchbuffer.h" -#include "intel_chipset.h" -#include "intel_context.h" -#include "intel_mipmap_tree.h" -#include "intel_regions.h" -#include "intel_tex_layout.h" -#include "intel_tex.h" -#include "intel_blit.h" - -#include "main/enums.h" -#include "main/formats.h" -#include "main/glformats.h" -#include "main/teximage.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_layout(struct intel_context *intel, - GLenum target, - mesa_format format, - GLuint first_level, - GLuint last_level, - GLuint width0, - GLuint height0, - GLuint depth0) -{ - struct intel_mipmap_tree *mt = calloc(sizeof(*mt), 1); - if (!mt) - return NULL; - - DBG("%s target %s format %s level %d..%d <-- %p\n", __func__, - _mesa_enum_to_string(target), - _mesa_get_format_name(format), - first_level, last_level, mt); - - mt->target = target_to_target(target); - mt->format = format; - mt->first_level = first_level; - mt->last_level = last_level; - - /* The cpp is bytes per (1, blockheight)-sized block for compressed - * textures. This is why you'll see divides by blockheight all over - */ - unsigned bw, bh; - _mesa_get_format_block_size(format, &bw, &bh); - assert(_mesa_get_format_bytes(mt->format) % bw == 0); - mt->cpp = _mesa_get_format_bytes(mt->format) / bw; - - mt->compressed = _mesa_is_format_compressed(format); - mt->refcount = 1; - - if (target == GL_TEXTURE_CUBE_MAP) { - assert(depth0 == 1); - depth0 = 6; - } - - mt->physical_width0 = width0; - mt->physical_height0 = height0; - mt->physical_depth0 = depth0; - - intel_get_texture_alignment_unit(intel, mt->format, - &mt->align_w, &mt->align_h); - - if (intel->is_945) - i945_miptree_layout(mt); - else - i915_miptree_layout(mt); - - return mt; -} - -/** - * \brief Helper function for intel_miptree_create(). - */ -static uint32_t -intel_miptree_choose_tiling(struct intel_context *intel, - mesa_format format, - uint32_t width0, - enum intel_miptree_tiling_mode requested, - struct intel_mipmap_tree *mt) -{ - /* Some usages may want only one type of tiling, like depth miptrees (Y - * tiled), or temporary BOs for uploading data once (linear). - */ - switch (requested) { - case INTEL_MIPTREE_TILING_ANY: - break; - case INTEL_MIPTREE_TILING_Y: - return I915_TILING_Y; - case INTEL_MIPTREE_TILING_NONE: - return I915_TILING_NONE; - } - - int minimum_pitch = mt->total_width * mt->cpp; - - /* If the width is much smaller than a tile, don't bother tiling. */ - if (minimum_pitch < 64) - return I915_TILING_NONE; - - if (ALIGN(minimum_pitch, 512) >= 32768) { - perf_debug("%dx%d miptree too large to blit, falling back to untiled", - mt->total_width, mt->total_height); - return I915_TILING_NONE; - } - - /* We don't have BLORP to handle Y-tiled blits, so use X-tiling. */ - return I915_TILING_X; -} - -struct intel_mipmap_tree * -intel_miptree_create(struct intel_context *intel, - GLenum target, - mesa_format format, - GLuint first_level, - GLuint last_level, - GLuint width0, - GLuint height0, - GLuint depth0, - bool expect_accelerated_upload, - enum intel_miptree_tiling_mode requested_tiling) -{ - struct intel_mipmap_tree *mt; - GLuint total_width, total_height; - - - mt = intel_miptree_create_layout(intel, target, format, - first_level, last_level, width0, - height0, depth0); - - /* pitch == 0 || height == 0 indicates the null texture */ - if (!mt || !mt->total_width || !mt->total_height) { - intel_miptree_release(&mt); - return NULL; - } - - total_width = mt->total_width; - total_height = mt->total_height; - - uint32_t tiling = intel_miptree_choose_tiling(intel, format, width0, - requested_tiling, - mt); - bool y_or_x = tiling == (I915_TILING_Y | I915_TILING_X); - - mt->region = intel_region_alloc(intel->intelScreen, - y_or_x ? I915_TILING_Y : tiling, - mt->cpp, - total_width, - total_height, - expect_accelerated_upload); - - /* If the region is too large to fit in the aperture, we need to use the - * BLT engine to support it. The BLT paths can't currently handle Y-tiling, - * so we need to fall back to X. - */ - if (y_or_x && mt->region->bo->size >= intel->max_gtt_map_object_size) { - perf_debug("%dx%d miptree larger than aperture; falling back to X-tiled\n", - mt->total_width, mt->total_height); - intel_region_release(&mt->region); - - mt->region = intel_region_alloc(intel->intelScreen, - I915_TILING_X, - mt->cpp, - total_width, - total_height, - expect_accelerated_upload); - } - - mt->offset = 0; - - if (!mt->region) { - intel_miptree_release(&mt); - return NULL; - } - - return mt; -} - -struct intel_mipmap_tree * -intel_miptree_create_for_bo(struct intel_context *intel, - drm_intel_bo *bo, - mesa_format format, - uint32_t offset, - uint32_t width, - uint32_t height, - int pitch, - uint32_t tiling) -{ - struct intel_mipmap_tree *mt; - - struct intel_region *region = calloc(1, sizeof(*region)); - if (!region) - return NULL; - - /* Nothing will be able to use this miptree with the BO if the offset isn't - * aligned. - */ - if (tiling != I915_TILING_NONE) - assert(offset % 4096 == 0); - - /* miptrees can't handle negative pitch. If you need flipping of images, - * that's outside of the scope of the mt. - */ - assert(pitch >= 0); - - mt = intel_miptree_create_layout(intel, GL_TEXTURE_2D, format, - 0, 0, - width, height, 1); - if (!mt) { - free(region); - return mt; - } - - region->cpp = mt->cpp; - region->width = width; - region->height = height; - region->pitch = pitch; - region->refcount = 1; - drm_intel_bo_reference(bo); - region->bo = bo; - region->tiling = tiling; - - mt->region = region; - mt->offset = offset; - - return mt; -} - - -/** - * Wraps the given region with a miptree. - */ -struct intel_mipmap_tree * -intel_miptree_create_for_dri2_buffer(struct intel_context *intel, - unsigned dri_attachment, - mesa_format format, - struct intel_region *region) -{ - struct intel_mipmap_tree *mt = NULL; - - /* Only the front and back buffers, which are color buffers, are shared - * through DRI2. - */ - assert(dri_attachment == __DRI_BUFFER_BACK_LEFT || - dri_attachment == __DRI_BUFFER_FRONT_LEFT || - dri_attachment == __DRI_BUFFER_FAKE_FRONT_LEFT); - assert(_mesa_get_format_base_format(format) == GL_RGB || - _mesa_get_format_base_format(format) == GL_RGBA); - - mt = intel_miptree_create_for_bo(intel, - region->bo, - format, - 0, - region->width, - region->height, - region->pitch, - region->tiling); - if (!mt) - return NULL; - mt->region->name = region->name; - - return mt; -} - -/** - * Wraps the given region with a miptree. - */ -struct intel_mipmap_tree * -intel_miptree_create_for_image_buffer(struct intel_context *intel, - enum __DRIimageBufferMask buffer_type, - mesa_format format, - uint32_t num_samples, - struct intel_region *region) -{ - struct intel_mipmap_tree *mt = NULL; - - /* Only the front and back buffers, which are color buffers, are allocated - * through the image loader. - */ - assert(_mesa_get_format_base_format(format) == GL_RGB || - _mesa_get_format_base_format(format) == GL_RGBA); - - mt = intel_miptree_create_for_bo(intel, - region->bo, - format, - 0, - region->width, - region->height, - region->pitch, - region->tiling); - return mt; -} - -struct intel_mipmap_tree * -intel_miptree_create_for_renderbuffer(struct intel_context *intel, - mesa_format format, - uint32_t width, - uint32_t height) -{ - uint32_t depth = 1; - - return intel_miptree_create(intel, GL_TEXTURE_2D, format, 0, 0, - width, height, depth, true, - INTEL_MIPTREE_TILING_ANY); -} - -void -intel_miptree_reference(struct intel_mipmap_tree **dst, - struct intel_mipmap_tree *src) -{ - if (*dst == src) - return; - - intel_miptree_release(dst); - - if (src) { - src->refcount++; - DBG("%s %p refcount now %d\n", __func__, src, src->refcount); - } - - *dst = src; -} - - -void -intel_miptree_release(struct intel_mipmap_tree **mt) -{ - if (!*mt) - return; - - DBG("%s %p refcount will be %d\n", __func__, *mt, (*mt)->refcount - 1); - if (--(*mt)->refcount <= 0) { - GLuint i; - - DBG("%s deleting %p\n", __func__, *mt); - - intel_region_release(&((*mt)->region)); - - for (i = 0; i < MAX_TEXTURE_LEVELS; i++) { - free((*mt)->level[i].slice); - } - - free(*mt); - } - *mt = NULL; -} - -void -intel_miptree_get_dimensions_for_image(struct gl_texture_image *image, - int *width, int *height, int *depth) -{ - switch (image->TexObject->Target) { - default: - *width = image->Width; - *height = image->Height; - *depth = image->Depth; - break; - } -} - -/** - * 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. - */ -bool -intel_miptree_match_image(struct intel_mipmap_tree *mt, - struct gl_texture_image *image) -{ - struct intel_texture_image *intelImage = intel_texture_image(image); - GLuint level = intelImage->base.Base.Level; - int width, height, depth; - - /* glTexImage* choose the texture object based on the target passed in, and - * objects can't change targets over their lifetimes, so this should be - * true. - */ - assert(target_to_target(image->TexObject->Target) == mt->target); - - mesa_format mt_format = mt->format; - - if (image->TexFormat != mt_format) - return false; - - intel_miptree_get_dimensions_for_image(image, &width, &height, &depth); - - if (mt->target == GL_TEXTURE_CUBE_MAP) - depth = 6; - - /* 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 (width != mt->level[level].width || - height != mt->level[level].height || - depth != mt->level[level].depth) { - return false; - } - - return true; -} - - -void -intel_miptree_set_level_info(struct intel_mipmap_tree *mt, - GLuint level, - 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_x = x; - mt->level[level].level_y = y; - - DBG("%s level %d size: %d,%d,%d offset %d,%d\n", __func__, - level, w, h, d, x, y); - - assert(mt->level[level].slice == NULL); - - mt->level[level].slice = calloc(d, sizeof(*mt->level[0].slice)); - mt->level[level].slice[0].x_offset = mt->level[level].level_x; - mt->level[level].slice[0].y_offset = mt->level[level].level_y; -} - - -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].depth); - - mt->level[level].slice[img].x_offset = mt->level[level].level_x + x; - mt->level[level].slice[img].y_offset = mt->level[level].level_y + y; - - DBG("%s level %d img %d pos %d,%d\n", - __func__, level, img, - mt->level[level].slice[img].x_offset, - mt->level[level].slice[img].y_offset); -} - -void -intel_miptree_get_image_offset(struct intel_mipmap_tree *mt, - GLuint level, GLuint slice, - GLuint *x, GLuint *y) -{ - assert(slice < mt->level[level].depth); - - *x = mt->level[level].slice[slice].x_offset; - *y = mt->level[level].slice[slice].y_offset; -} - -/** - * Rendering with tiled buffers requires that the base address of the buffer - * be aligned to a page boundary. For renderbuffers, and sometimes with - * textures, we may want the surface to point at a texture image level that - * isn't at a page boundary. - * - * This function returns an appropriately-aligned base offset - * according to the tiling restrictions, plus any required x/y offset - * from there. - */ -uint32_t -intel_miptree_get_tile_offsets(struct intel_mipmap_tree *mt, - GLuint level, GLuint slice, - uint32_t *tile_x, - uint32_t *tile_y) -{ - struct intel_region *region = mt->region; - uint32_t x, y; - uint32_t mask_x, mask_y; - - intel_region_get_tile_masks(region, &mask_x, &mask_y); - intel_miptree_get_image_offset(mt, level, slice, &x, &y); - - *tile_x = x & mask_x; - *tile_y = y & mask_y; - - return intel_region_get_aligned_offset(region, x & ~mask_x, y & ~mask_y); -} - -static void -intel_miptree_copy_slice_sw(struct intel_context *intel, - struct intel_mipmap_tree *dst_mt, - struct intel_mipmap_tree *src_mt, - int level, - int slice, - int width, - int height) -{ - void *src, *dst; - int src_stride, dst_stride; - int cpp = dst_mt->cpp; - - intel_miptree_map(intel, src_mt, - level, slice, - 0, 0, - width, height, - GL_MAP_READ_BIT, - &src, &src_stride); - - intel_miptree_map(intel, dst_mt, - level, slice, - 0, 0, - width, height, - GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_RANGE_BIT, - &dst, &dst_stride); - - DBG("sw blit %s mt %p %p/%d -> %s mt %p %p/%d (%dx%d)\n", - _mesa_get_format_name(src_mt->format), - src_mt, src, src_stride, - _mesa_get_format_name(dst_mt->format), - dst_mt, dst, dst_stride, - width, height); - - int row_size = cpp * width; - if (src_stride == row_size && - dst_stride == row_size) { - memcpy(dst, src, row_size * height); - } else { - for (int i = 0; i < height; i++) { - memcpy(dst, src, row_size); - dst += dst_stride; - src += src_stride; - } - } - - intel_miptree_unmap(intel, dst_mt, level, slice); - intel_miptree_unmap(intel, src_mt, level, slice); -} - -static void -intel_miptree_copy_slice(struct intel_context *intel, - struct intel_mipmap_tree *dst_mt, - struct intel_mipmap_tree *src_mt, - int level, - int face, - int depth) - -{ - mesa_format format = src_mt->format; - uint32_t width = src_mt->level[level].width; - uint32_t height = src_mt->level[level].height; - int slice; - - if (face > 0) - slice = face; - else - slice = depth; - - assert(depth < src_mt->level[level].depth); - assert(src_mt->format == dst_mt->format); - - if (dst_mt->compressed) { - height = ALIGN(height, dst_mt->align_h) / dst_mt->align_h; - width = ALIGN(width, dst_mt->align_w); - } - - uint32_t dst_x, dst_y, src_x, src_y; - intel_miptree_get_image_offset(dst_mt, level, slice, &dst_x, &dst_y); - intel_miptree_get_image_offset(src_mt, level, slice, &src_x, &src_y); - - DBG("validate blit mt %s %p %d,%d/%d -> mt %s %p %d,%d/%d (%dx%d)\n", - _mesa_get_format_name(src_mt->format), - src_mt, src_x, src_y, src_mt->region->pitch, - _mesa_get_format_name(dst_mt->format), - dst_mt, dst_x, dst_y, dst_mt->region->pitch, - width, height); - - if (!intel_miptree_blit(intel, - src_mt, level, slice, 0, 0, false, - dst_mt, level, slice, 0, 0, false, - width, height, COLOR_LOGICOP_COPY)) { - perf_debug("miptree validate blit for %s failed\n", - _mesa_get_format_name(format)); - - intel_miptree_copy_slice_sw(intel, dst_mt, src_mt, level, slice, - width, height); - } -} - -/** - * Copies the image's current data to the given miptree, and associates that - * miptree with the image. - * - * If \c invalidate is true, then the actual image data does not need to be - * copied, but the image still needs to be associated to the new miptree (this - * is set to true if we're about to clear the image). - */ -void -intel_miptree_copy_teximage(struct intel_context *intel, - struct intel_texture_image *intelImage, - struct intel_mipmap_tree *dst_mt, - bool invalidate) -{ - struct intel_mipmap_tree *src_mt = intelImage->mt; - struct intel_texture_object *intel_obj = - intel_texture_object(intelImage->base.Base.TexObject); - int level = intelImage->base.Base.Level; - int face = intelImage->base.Base.Face; - GLuint depth = intelImage->base.Base.Depth; - - if (!invalidate) { - for (int slice = 0; slice < depth; slice++) { - intel_miptree_copy_slice(intel, dst_mt, src_mt, level, face, slice); - } - } - - intel_miptree_reference(&intelImage->mt, dst_mt); - intel_obj->needs_validate = true; -} - -void * -intel_miptree_map_raw(struct intel_context *intel, struct intel_mipmap_tree *mt) -{ - drm_intel_bo *bo = mt->region->bo; - - if (unlikely(INTEL_DEBUG & DEBUG_PERF)) { - if (drm_intel_bo_busy(bo)) { - perf_debug("Mapping a busy BO, causing a stall on the GPU.\n"); - } - } - - intel_flush(&intel->ctx); - - if (mt->region->tiling != I915_TILING_NONE) - drm_intel_gem_bo_map_gtt(bo); - else - drm_intel_bo_map(bo, true); - - return bo->virtual; -} - -void -intel_miptree_unmap_raw(struct intel_mipmap_tree *mt) -{ - drm_intel_bo_unmap(mt->region->bo); -} - -static void -intel_miptree_map_gtt(struct intel_context *intel, - struct intel_mipmap_tree *mt, - struct intel_miptree_map *map, - unsigned int level, unsigned int slice) -{ - unsigned int bw, bh; - void *base; - unsigned int image_x, image_y; - int x = map->x; - int y = map->y; - - /* For compressed formats, the stride is the number of bytes per - * row of blocks. intel_miptree_get_image_offset() already does - * the divide. - */ - _mesa_get_format_block_size(mt->format, &bw, &bh); - assert(y % bh == 0); - y /= bh; - - base = intel_miptree_map_raw(intel, mt) + mt->offset; - - if (base == NULL) - map->ptr = NULL; - else { - /* Note that in the case of cube maps, the caller must have passed the - * slice number referencing the face. - */ - intel_miptree_get_image_offset(mt, level, slice, &image_x, &image_y); - x += image_x; - y += image_y; - - map->stride = mt->region->pitch; - map->ptr = base + y * map->stride + x * mt->cpp; - } - - DBG("%s: %d,%d %dx%d from mt %p (%s) %d,%d = %p/%d\n", __func__, - map->x, map->y, map->w, map->h, - mt, _mesa_get_format_name(mt->format), - x, y, map->ptr, map->stride); -} - -static void -intel_miptree_unmap_gtt(struct intel_mipmap_tree *mt) -{ - intel_miptree_unmap_raw(mt); -} - -static void -intel_miptree_map_blit(struct intel_context *intel, - struct intel_mipmap_tree *mt, - struct intel_miptree_map *map, - unsigned int level, unsigned int slice) -{ - map->mt = intel_miptree_create(intel, GL_TEXTURE_2D, mt->format, - 0, 0, - map->w, map->h, 1, - false, - INTEL_MIPTREE_TILING_NONE); - if (!map->mt) { - fprintf(stderr, "Failed to allocate blit temporary\n"); - goto fail; - } - map->stride = map->mt->region->pitch; - - if (!intel_miptree_blit(intel, - mt, level, slice, - map->x, map->y, false, - map->mt, 0, 0, - 0, 0, false, - map->w, map->h, COLOR_LOGICOP_COPY)) { - fprintf(stderr, "Failed to blit\n"); - goto fail; - } - - intel_batchbuffer_flush(intel); - map->ptr = intel_miptree_map_raw(intel, map->mt); - - DBG("%s: %d,%d %dx%d from mt %p (%s) %d,%d = %p/%d\n", __func__, - map->x, map->y, map->w, map->h, - mt, _mesa_get_format_name(mt->format), - level, slice, map->ptr, map->stride); - - return; - -fail: - intel_miptree_release(&map->mt); - map->ptr = NULL; - map->stride = 0; -} - -static void -intel_miptree_unmap_blit(struct intel_context *intel, - struct intel_mipmap_tree *mt, - struct intel_miptree_map *map, - unsigned int level, - unsigned int slice) -{ - struct gl_context *ctx = &intel->ctx; - - intel_miptree_unmap_raw(map->mt); - - if (map->mode & GL_MAP_WRITE_BIT) { - bool ok = intel_miptree_blit(intel, - map->mt, 0, 0, - 0, 0, false, - mt, level, slice, - map->x, map->y, false, - map->w, map->h, COLOR_LOGICOP_COPY); - WARN_ONCE(!ok, "Failed to blit from linear temporary mapping"); - } - - intel_miptree_release(&map->mt); -} - -/** - * Create and attach a map to the miptree at (level, slice). Return the - * attached map. - */ -static struct intel_miptree_map* -intel_miptree_attach_map(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) -{ - struct intel_miptree_map *map = calloc(1, sizeof(*map)); - - if (!map) - return NULL; - - assert(mt->level[level].slice[slice].map == NULL); - mt->level[level].slice[slice].map = map; - - map->mode = mode; - map->x = x; - map->y = y; - map->w = w; - map->h = h; - - return map; -} - -/** - * Release the map at (level, slice). - */ -static void -intel_miptree_release_map(struct intel_mipmap_tree *mt, - unsigned int level, - unsigned int slice) -{ - struct intel_miptree_map **map; - - map = &mt->level[level].slice[slice].map; - free(*map); - *map = NULL; -} - -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) -{ - struct intel_miptree_map *map; - - map = intel_miptree_attach_map(mt, level, slice, x, y, w, h, mode); - if (!map) { - *out_ptr = NULL; - *out_stride = 0; - return; - } - - /* See intel_miptree_blit() for details on the 32k pitch limit. */ - if (mt->region->tiling != I915_TILING_NONE && - mt->region->bo->size >= intel->max_gtt_map_object_size) { - assert(mt->region->pitch < 32768); - intel_miptree_map_blit(intel, mt, map, level, slice); - } else { - intel_miptree_map_gtt(intel, mt, map, level, slice); - } - - *out_ptr = map->ptr; - *out_stride = map->stride; - - if (map->ptr == NULL) - intel_miptree_release_map(mt, level, slice); -} - -void -intel_miptree_unmap(struct intel_context *intel, - struct intel_mipmap_tree *mt, - unsigned int level, - unsigned int slice) -{ - struct intel_miptree_map *map = mt->level[level].slice[slice].map; - - if (!map) - return; - - DBG("%s: mt %p (%s) level %d slice %d\n", __func__, - mt, _mesa_get_format_name(mt->format), level, slice); - - if (map->mt) { - intel_miptree_unmap_blit(intel, mt, map, level, slice); - } else { - intel_miptree_unmap_gtt(mt); - } - - intel_miptree_release_map(mt, level, slice); -} |