| /* |
| * Copyright 2013 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 THE AUTHORS 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 "pipe/p_defines.h" |
| #include "pipe/p_state.h" |
| #include "util/format/u_format.h" |
| #include "util/u_math.h" |
| #include "util/u_resource.h" |
| |
| |
| /** |
| * Return the size of the resource in bytes. |
| */ |
| unsigned |
| util_resource_size(const struct pipe_resource *res) |
| { |
| unsigned width = res->width0; |
| unsigned height = res->height0; |
| unsigned depth = res->depth0; |
| unsigned size = 0; |
| unsigned level; |
| unsigned samples = MAX2(1, res->nr_samples); |
| |
| for (level = 0; level <= res->last_level; level++) { |
| unsigned slices; |
| |
| if (res->target == PIPE_TEXTURE_CUBE) |
| slices = 6; |
| else if (res->target == PIPE_TEXTURE_3D) |
| slices = depth; |
| else |
| slices = res->array_size; |
| |
| size += (util_format_get_nblocksy(res->format, height) * |
| util_format_get_stride(res->format, width) * slices * samples); |
| |
| width = u_minify(width, 1); |
| height = u_minify(height, 1); |
| depth = u_minify(depth, 1); |
| } |
| |
| return size; |
| } |