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/*
* Copyright (C) 2010-2014 Hendrik Leppkes
* http://www.1f0.de
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "stdafx.h"
#include "pixconv_internal.h"
#include "pixconv_sse2_templates.h"
// 8x8 Bayes ordered dithering table, scaled to the 0-255 range for 16->8 conversion
// stored as 16-bit unsigned for optimized SIMD access
DECLARE_ALIGNED(16, const uint16_t, dither_8x8_256)[8][8] = {
{ 0, 192, 48, 240, 12, 204, 60, 252 },
{ 128, 64, 176, 112, 140, 76, 188, 124 },
{ 32, 224, 16, 208, 44, 236, 28, 220 },
{ 160, 96, 144, 80, 172, 108, 156, 92 },
{ 8, 200, 56, 248, 4, 196, 52, 244 },
{ 136, 72, 184, 120, 132, 68, 180, 116 },
{ 40, 232, 24, 216, 36, 228, 20, 212 },
{ 168, 104, 152, 88, 164, 100, 148, 84 }
};
DECLARE_CONV_FUNC_IMPL(plane_copy)
{
LAVOutPixFmtDesc desc = lav_pixfmt_desc[outputFormat];
int plane, line;
const int widthBytes = width * desc.codedbytes;
const int planes = max(desc.planes, 1);
for (plane = 0; plane < planes; plane++) {
const int planeWidth = widthBytes / desc.planeWidth[plane];
const int planeHeight = height / desc.planeHeight[plane];
const uint8_t *srcBuf = src[plane];
uint8_t *dstBuf = dst[plane];
for (line = 0; line < planeHeight; ++line) {
memcpy(dstBuf, srcBuf, planeWidth);
srcBuf += srcStride[plane];
dstBuf += dstStride[plane];
}
}
return S_OK;
}
DECLARE_CONV_FUNC_IMPL(plane_copy_sse2)
{
LAVOutPixFmtDesc desc = lav_pixfmt_desc[outputFormat];
const int widthBytes = width * desc.codedbytes;
const int planes = max(desc.planes, 1);
ptrdiff_t line, plane;
for (plane = 0; plane < planes; plane++) {
const int planeWidth = widthBytes / desc.planeWidth[plane];
const int planeHeight = height / desc.planeHeight[plane];
const ptrdiff_t srcPlaneStride = srcStride[plane];
const ptrdiff_t dstPlaneStride = dstStride[plane];
const uint8_t * const srcBuf = src[plane];
uint8_t * const dstBuf = dst[plane];
if ((dstPlaneStride % 16) == 0 && ((intptr_t)dstBuf % 16u) == 0) {
for (line = 0; line < planeHeight; ++line) {
PIXCONV_MEMCPY_ALIGNED(dstBuf + line * dstPlaneStride, srcBuf + line * srcPlaneStride, planeWidth);
}
} else {
for (line = 0; line < planeHeight; ++line) {
memcpy(dstBuf + line * dstPlaneStride, srcBuf + line * srcPlaneStride, planeWidth);
}
}
}
return S_OK;
}
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