1/* 2 * Copyright 2013 VMware, Inc. 3 * All Rights Reserved. 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining a 6 * copy of this software and associated documentation files (the 7 * "Software"), to deal in the Software without restriction, including 8 * without limitation the rights to use, copy, modify, merge, publish, 9 * distribute, sub license, and/or sell copies of the Software, and to 10 * permit persons to whom the Software is furnished to do so, subject to 11 * the following conditions: 12 * 13 * The above copyright notice and this permission notice (including the 14 * next paragraph) shall be included in all copies or substantial portions 15 * of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 20 * IN NO EVENT SHALL THE AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR 21 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 22 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 23 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 24 */ 25 26 27#include "pipe/p_defines.h" 28#include "pipe/p_state.h" 29#include "util/u_format.h" 30#include "util/u_math.h" 31#include "util/u_resource.h" 32 33 34/** 35 * Return the size of the resource in bytes. 36 */ 37unsigned 38util_resource_size(const struct pipe_resource *res) 39{ 40 unsigned width = res->width0; 41 unsigned height = res->height0; 42 unsigned depth = res->depth0; 43 unsigned size = 0; 44 unsigned level; 45 46 for (level = 0; level <= res->last_level; level++) { 47 unsigned slices; 48 49 if (res->target == PIPE_TEXTURE_CUBE) 50 slices = 6; 51 else if (res->target == PIPE_TEXTURE_3D) 52 slices = depth; 53 else 54 slices = res->array_size; 55 56 size += (util_format_get_nblocksy(res->format, height) * 57 util_format_get_stride(res->format, width) * slices); 58 59 width = u_minify(width, 1); 60 height = u_minify(height, 1); 61 depth = u_minify(depth, 1); 62 } 63 64 return size; 65} 66