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// VirtualDub - Video processing and capture application
// Graphics support library
// Copyright (C) 1998-2009 Avery Lee
//
// 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., 675 Mass Ave, Cambridge, MA 02139, USA.
#include <stdafx.h>
#include "uberblit_ycbcr_x86.h"
extern "C" void vdasm_pixblt_XRGB8888_to_YUV444Planar_scan_SSE2(void *dstY, void *dstCb, void *dstCr, const void *srcRGB, uint32 count, const void *coeffs);
void VDPixmapGenRGB32ToYCbCr601_SSE2::Compute(void *dst0, sint32 y) {
uint8 *dstCb = (uint8 *)dst0;
uint8 *dstY = dstCb + mWindowPitch;
uint8 *dstCr = dstY + mWindowPitch;
const uint8 *srcRGB = (const uint8 *)mpSrc->GetRow(y, mSrcIndex);
static const __declspec(align(16)) struct {
sint16 rb_to_y[8];
sint16 rb_to_cb[8];
sint16 rb_to_cr[8];
sint16 g_to_y[8];
sint16 g_to_cb[8];
sint16 g_to_cr[8];
sint32 y_bias[4];
sint32 c_bias[4];
} kCoeffs={
// Cb = (28784*r - 24103*g - 4681*b + 8388608 + 32768) >> 16;
// Y = (16829*r + 33039*g + 6416*b + 1048576 + 32768) >> 16;
// Cr = (-9714*r - 19071*g + 28784*b + 8388608 + 32768) >> 16;
{ 3208, 8414, 3208, 8414, 3208, 8414, 3208, 8414, }, // rb to y
{ -2340, 14392, -2340, 14392, -2340, 14392, -2340, 14392, }, // rb to cb
{ 16519, 0, 16519, 0, 16519, 0, 16519, 0, }, // g to y
{ -12050, 0, -12050, 0, -12050, 0, -12050, 0, }, // g to cb
{ 14392, -4857, 14392, -4857, 14392, -4857, 14392, -4857, }, // rb to cr
{ -9535, 0, -9535, 0, -9535, 0, -9535, 0, }, // g to cr
{ 0x084000, 0x084000, 0x084000, 0x084000, }, // y bias
{ 0x404000, 0x404000, 0x404000, 0x404000, }, // c bias
};
vdasm_pixblt_XRGB8888_to_YUV444Planar_scan_SSE2(dstY, dstCb, dstCr, srcRGB, mWidth, &kCoeffs);
}
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