74 lines
2.3 KiB
C
74 lines
2.3 KiB
C
/**************************************************************************
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*
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* Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
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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 TUNGSTEN GRAPHICS 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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**************************************************************************/
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/**
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* Miscellaneous utility functions.
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*/
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#include "pipe/p_defines.h"
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#include "pipe/p_util.h"
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/**
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* Copy 2D rect from one place to another.
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* Position and sizes are in pixels.
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*/
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void
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pipe_copy_rect(ubyte * dst,
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unsigned cpp,
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unsigned dst_pitch,
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unsigned dst_x,
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unsigned dst_y,
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unsigned width,
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unsigned height,
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const ubyte * src,
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int src_pitch,
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unsigned src_x,
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int src_y)
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{
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unsigned i;
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dst_pitch *= cpp;
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src_pitch *= cpp;
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dst += dst_x * cpp;
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src += src_x * cpp;
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dst += dst_y * dst_pitch;
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src += src_y * src_pitch;
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width *= cpp;
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if (width == dst_pitch && width == src_pitch)
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memcpy(dst, src, height * width);
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else {
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for (i = 0; i < height; i++) {
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memcpy(dst, src, width);
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dst += dst_pitch;
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src += src_pitch;
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}
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}
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}
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