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/*
* Copyright (c) 2011 Intel Corporation
*
* 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, sublicense,
* 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 NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS 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.
*
* Authors:
* Chris Wilson <chris@chris-wilson.co.uk>
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "sna.h"
#if DEBUG_BLT
#undef DBG
#define DBG(x) ErrorF x
#endif
void
memcpy_blt(const void *src, void *dst, int bpp,
int32_t src_stride, int32_t dst_stride,
int16_t src_x, int16_t src_y,
int16_t dst_x, int16_t dst_y,
uint16_t width, uint16_t height)
{
uint8_t *src_bytes;
uint8_t *dst_bytes;
int byte_width;
assert(width && height);
assert(bpp >= 8);
DBG(("%s: src=(%d, %d), dst=(%d, %d), size=%dx%d, pitch=%d/%d\n",
__FUNCTION__, src_x, src_y, dst_x, dst_y, width, height, src_stride, dst_stride));
bpp /= 8;
src_bytes = (uint8_t *)src + src_stride * src_y + src_x * bpp;
dst_bytes = (uint8_t *)dst + dst_stride * dst_y + dst_x * bpp;
byte_width = width * bpp;
if (byte_width == src_stride && byte_width == dst_stride) {
memcpy(dst_bytes, src_bytes, byte_width * height);
return;
}
do {
memcpy(dst_bytes, src_bytes, byte_width);
src_bytes += src_stride;
dst_bytes += dst_stride;
} while (--height);
}
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