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Diffstat (limited to 'src/gallium/auxiliary/util/p_util.c')
-rw-r--r-- | src/gallium/auxiliary/util/p_util.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/util/p_util.c b/src/gallium/auxiliary/util/p_util.c new file mode 100644 index 00000000000..2a92f8e408b --- /dev/null +++ b/src/gallium/auxiliary/util/p_util.c @@ -0,0 +1,73 @@ +/************************************************************************** + * + * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. + * 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 TUNGSTEN GRAPHICS 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. + * + **************************************************************************/ + +/** + * Miscellaneous utility functions. + */ + + +#include "pipe/p_defines.h" +#include "pipe/p_util.h" + + +/** + * Copy 2D rect from one place to another. + * Position and sizes are in pixels. + */ +void +pipe_copy_rect(ubyte * dst, + unsigned cpp, + unsigned dst_pitch, + unsigned dst_x, + unsigned dst_y, + unsigned width, + unsigned height, + const ubyte * src, + int src_pitch, + unsigned src_x, + int src_y) +{ + unsigned i; + + dst_pitch *= cpp; + src_pitch *= cpp; + dst += dst_x * cpp; + src += src_x * cpp; + dst += dst_y * dst_pitch; + src += src_y * src_pitch; + width *= cpp; + + if (width == dst_pitch && width == src_pitch) + memcpy(dst, src, height * width); + else { + for (i = 0; i < height; i++) { + memcpy(dst, src, width); + dst += dst_pitch; + src += src_pitch; + } + } +} |