forked from KolibriOS/kolibrios
66 lines
2.1 KiB
C
66 lines
2.1 KiB
C
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/*
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* Copyright 2013 VMware, Inc.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "pipe/p_defines.h"
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#include "pipe/p_state.h"
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#include "util/u_format.h"
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#include "util/u_math.h"
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#include "util/u_resource.h"
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/**
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* Return the size of the resource in bytes.
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*/
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unsigned
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util_resource_size(const struct pipe_resource *res)
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{
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unsigned width = res->width0;
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unsigned height = res->height0;
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unsigned depth = res->depth0;
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unsigned size = 0;
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unsigned level;
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for (level = 0; level <= res->last_level; level++) {
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unsigned slices;
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if (res->target == PIPE_TEXTURE_CUBE)
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slices = 6;
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else if (res->target == PIPE_TEXTURE_3D)
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slices = depth;
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else
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slices = res->array_size;
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size += (util_format_get_nblocksy(res->format, height) *
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util_format_get_stride(res->format, width) * slices);
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width = u_minify(width, 1);
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height = u_minify(height, 1);
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depth = u_minify(depth, 1);
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}
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return size;
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}
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