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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 <vd2/system/vectors.h>
#include "uberblit_ycbcr_generic.h"
extern const VDPixmapGenYCbCrBasis g_VDPixmapGenYCbCrBasis_601 = {
0.299f,
0.114f,
{
0.0f, -0.3441363f, 1.772f,
1.402f, -0.7141363f, 0.0f,
}
};
extern const VDPixmapGenYCbCrBasis g_VDPixmapGenYCbCrBasis_709 = {
0.2126f,
0.0722f,
{
0.0f, -0.1873243f, 1.8556f,
1.5748f, -0.4681243f, 0.0f,
}
};
////////////////////////////////////////////////////////////////////////////
VDPixmapGenYCbCrToRGB32Generic::VDPixmapGenYCbCrToRGB32Generic(const VDPixmapGenYCbCrBasis& basis, bool studioRGB) {
float scale;
float bias;
if (studioRGB) {
scale = 65536.0f * (219.0f / 255.0f);
bias = 65536.0f * (16.0f / 255.0f + 0.5f);
} else {
scale = 65536.0f;
bias = 32768.0f;
}
float scale255 = scale * 255.0f;
mCoY = VDRoundToInt32(scale);
mCoRCr = VDRoundToInt32(basis.mToRGB[1][0] * scale);
mCoGCr = VDRoundToInt32(basis.mToRGB[1][1] * scale);
mCoGCb = VDRoundToInt32(basis.mToRGB[0][1] * scale);
mCoBCb = VDRoundToInt32(basis.mToRGB[0][2] * scale);
mBiasR = VDRoundToInt32(bias) - 128*mCoRCr;
mBiasG = VDRoundToInt32(bias) - 128*(mCoGCr + mCoGCb);
mBiasB = VDRoundToInt32(bias) - 128*mCoBCb;
}
uint32 VDPixmapGenYCbCrToRGB32Generic::GetType(uint32 output) const {
return (mpSrcY->GetType(mSrcIndexY) & ~(kVDPixType_Mask | kVDPixSpace_Mask)) | kVDPixType_8888 | kVDPixSpace_BGR;
}
void VDPixmapGenYCbCrToRGB32Generic::Compute(void *dst0, sint32 y) {
uint8 *dst = (uint8 *)dst0;
const uint8 *srcY = (const uint8 *)mpSrcY->GetRow(y, mSrcIndexY);
const uint8 *srcCb = (const uint8 *)mpSrcCb->GetRow(y, mSrcIndexCb);
const uint8 *srcCr = (const uint8 *)mpSrcCr->GetRow(y, mSrcIndexCr);
const sint32 coY = mCoY;
const sint32 coRCr = mCoRCr;
const sint32 coGCr = mCoGCr;
const sint32 coGCb = mCoGCb;
const sint32 coBCb = mCoBCb;
const sint32 biasR = mBiasR;
const sint32 biasG = mBiasG;
const sint32 biasB = mBiasB;
const sint32 w = mWidth;
for(sint32 i=0; i<w; ++i) {
sint32 y = srcY[i];
sint32 cb = srcCb[i];
sint32 cr = srcCr[i];
y *= coY;
sint32 r = biasR + y + coRCr * cr;
sint32 g = biasG + y + coGCr * cr + coGCb * cb;
sint32 b = biasB + y + coBCb * cb;
// clip low
r &= ~r >> 31;
g &= ~g >> 31;
b &= ~b >> 31;
// clip high
sint32 clipR = 0xffffff - r;
sint32 clipG = 0xffffff - g;
sint32 clipB = 0xffffff - b;
r |= clipR >> 31;
g |= clipG >> 31;
b |= clipB >> 31;
dst[0] = (uint8)(b >> 16);
dst[1] = (uint8)(g >> 16);
dst[2] = (uint8)(r >> 16);
dst[3] = 0xff;
dst += 4;
}
}
////////////////////////////////////////////////////////////////////////////
VDPixmapGenYCbCrToRGB32FGeneric::VDPixmapGenYCbCrToRGB32FGeneric(const VDPixmapGenYCbCrBasis& basis) {
mCoRCr = basis.mToRGB[1][0];
mCoGCr = basis.mToRGB[1][1];
mCoGCb = basis.mToRGB[0][1];
mCoBCb = basis.mToRGB[0][2];
}
uint32 VDPixmapGenYCbCrToRGB32FGeneric::GetType(uint32 output) const {
return (mpSrcY->GetType(mSrcIndexY) & ~(kVDPixType_Mask | kVDPixSpace_Mask)) | kVDPixType_32Fx4_LE | kVDPixSpace_BGR;
}
void VDPixmapGenYCbCrToRGB32FGeneric::Compute(void *dst0, sint32 y) {
float *dst = (float *)dst0;
const float *srcY = (const float *)mpSrcY->GetRow(y, mSrcIndexY);
const float *srcCb = (const float *)mpSrcCb->GetRow(y, mSrcIndexCb);
const float *srcCr = (const float *)mpSrcCr->GetRow(y, mSrcIndexCr);
VDCPUCleanupExtensions();
const float coRCr = mCoRCr;
const float coGCr = mCoGCr;
const float coGCb = mCoGCb;
const float coBCb = mCoBCb;
for(sint32 i=0; i<mWidth; ++i) {
float y = srcY[i];
float cb = srcCb[i] - (128.0f / 255.0f);
float cr = srcCr[i] - (128.0f / 255.0f);
dst[0] = y + coRCr * cr;
dst[1] = y + coGCr * cr + coGCb * cb;
dst[2] = y + coBCb * cb;
dst[3] = 1.0f;
dst += 4;
}
}
////////////////////////////////////////////////////////////////////////////
VDPixmapGenRGB32ToYCbCrGeneric::VDPixmapGenRGB32ToYCbCrGeneric(const VDPixmapGenYCbCrBasis& basis, bool studioRGB, uint32 colorSpace)
: mColorSpace(colorSpace)
{
float scale;
float bias;
if (studioRGB) {
scale = 255.0f / 219.0f;
bias = -16.0f;
} else {
scale = 1.0f;
bias = 0.0f;
}
// compute Y coefficients
float coYR = basis.mKr;
float coYG = (1.0f - basis.mKr - basis.mKb);
float coYB = basis.mKb;
mCoYR = VDRoundToInt32(scale * coYR * 65536.0f);
mCoYG = VDRoundToInt32(scale * coYG * 65536.0f);
mCoYB = VDRoundToInt32(scale * coYB * 65536.0f);
mCoYA = 0x8000;
// Cb = 0.5 * (B-Y) / (1-Kb)
const float coCb = 0.5f / (1.0f - basis.mKb);
float coCbR = (0.0f - coYR) * coCb;
float coCbG = (0.0f - coYG) * coCb;
float coCbB = (1.0f - coYB) * coCb;
float coCbA = (coCbR + coCbG + coCbB) * bias;
// Cr = 0.5 * (R-Y) / (1-Kr)
const float coCr = 0.5f / (1.0f - basis.mKr);
float coCrR = (1.0f - coYR) * coCr;
float coCrG = (0.0f - coYG) * coCr;
float coCrB = (0.0f - coYB) * coCr;
float coCrA = (coCrR + coCrG + coCrB) * bias;
mCoCbR = VDRoundToInt32(coCbR * 65536.0f);
mCoCbG = VDRoundToInt32(coCbG * 65536.0f);
mCoCbB = VDRoundToInt32(coCbB * 65536.0f);
mCoCbA = VDRoundToInt32(coCbA * 65536.0f) + 0x808000;
mCoCrR = VDRoundToInt32(coCrR * 65536.0f);
mCoCrG = VDRoundToInt32(coCrG * 65536.0f);
mCoCrB = VDRoundToInt32(coCrB * 65536.0f);
mCoCrA = VDRoundToInt32(coCrA * 65536.0f) + 0x808000;
}
uint32 VDPixmapGenRGB32ToYCbCrGeneric::GetType(uint32 output) const {
return (mpSrc->GetType(mSrcIndex) & ~(kVDPixType_Mask | kVDPixSpace_Mask)) | kVDPixType_8 | mColorSpace;
}
void VDPixmapGenRGB32ToYCbCrGeneric::Compute(void *dst0, sint32 y) {
uint8 *dstCr = (uint8 *)dst0;
uint8 *dstY = dstCr + mWindowPitch;
uint8 *dstCb = dstY + mWindowPitch;
const uint8 *srcRGB = (const uint8 *)mpSrc->GetRow(y, mSrcIndex);
const sint32 coYR = mCoYR;
const sint32 coYG = mCoYG;
const sint32 coYB = mCoYB;
const sint32 coCbR = mCoCbR;
const sint32 coCbG = mCoCbG;
const sint32 coCbB = mCoCbB;
const sint32 coCrR = mCoCrR;
const sint32 coCrG = mCoCrG;
const sint32 coCrB = mCoCrB;
const sint32 coYA = mCoYA;
const sint32 coCbA = mCoCbA;
const sint32 coCrA = mCoCrA;
const sint32 w = mWidth;
for(sint32 i=0; i<w; ++i) {
int r = (int)srcRGB[2];
int g = (int)srcRGB[1];
int b = (int)srcRGB[0];
srcRGB += 4;
// Normally, this can be optimized by encoding the chroma channels as
// (R-Y) and (B-Y) differences. However, us working in fixed point complicates
// things here, so for now we do a full 4x3 matrix.
sint32 y16 = coYR * r + coYG * g + coYB * b + coYA;
sint32 cb16 = coCbR * r + coCbG * g + coCbB * b + coCbA;
sint32 cr16 = coCrR * r + coCrG * g + coCrB * b + coCrA;
// Quite annoyingly, we have to clip chroma on the high end since the transformation
// targets [0,1] instead of [0,1). This occurs due to the bias by +0.5 to make
// reference black for chroma fall on 128 instead of 127.5. The resulting
// transformation is the one used for JFIF and also for TIFF with the full
// range ReferenceBlack/ReferenceWhite values.
cb16 |= (0xffffff - cb16) >> 31;
cr16 |= (0xffffff - cr16) >> 31;
*dstCb++ = (uint8)(cb16 >> 16);
*dstY ++ = (uint8)( y16 >> 16);
*dstCr++ = (uint8)(cr16 >> 16);
}
}
////////////////////////////////////////////////////////////////////////////
VDPixmapGenRGB32FToYCbCrGeneric::VDPixmapGenRGB32FToYCbCrGeneric(const VDPixmapGenYCbCrBasis& basis, uint32 colorSpace)
: mColorSpace(colorSpace)
{
mCoYR = basis.mKr;
mCoYG = 1.0f - basis.mKr - basis.mKb;
mCoYB = basis.mKb;
// Cb = 0.5 * (B-Y) / (1-Kb)
mCoCb = 0.5f / (1.0f - basis.mKb);
// Cr = 0.5 * (R-Y) / (1-Kr)
mCoCr = 0.5f / (1.0f - basis.mKr);
}
uint32 VDPixmapGenRGB32FToYCbCrGeneric::GetType(uint32 output) const {
return (mpSrc->GetType(mSrcIndex) & ~(kVDPixType_Mask | kVDPixSpace_Mask)) | kVDPixType_32F_LE | mColorSpace;
}
void VDPixmapGenRGB32FToYCbCrGeneric::Compute(void *dst0, sint32 y) {
float *dstCr = (float *)dst0;
float *dstY = dstCr + mWindowPitch;
float *dstCb = dstY + mWindowPitch;
const float *srcRGB = (const float *)mpSrc->GetRow(y, mSrcIndex);
VDCPUCleanupExtensions();
const float coYR = mCoYR;
const float coYG = mCoYG;
const float coYB = mCoYB;
const float coCb = mCoCb;
const float coCr = mCoCr;
const sint32 w = mWidth;
for(sint32 i=0; i<w; ++i) {
float r = srcRGB[2];
float g = srcRGB[1];
float b = srcRGB[0];
srcRGB += 4;
float y = coYR * r + coYG * g + coYB * b;
*dstY++ = y;
*dstCb++ = coCb * (b - y) + (128.0f / 255.0f);
*dstCr++ = coCr * (r - y) + (128.0f / 255.0f);
}
}
////////////////////////////////////////////////////////////////////////////
VDPixmapGenYCbCrToYCbCrGeneric::VDPixmapGenYCbCrToYCbCrGeneric(const VDPixmapGenYCbCrBasis& dstBasis, bool dstLimitedRange, const VDPixmapGenYCbCrBasis& srcBasis, bool srcLimitedRange, uint32 colorSpace)
: mColorSpace(colorSpace)
{
vdfloat3x3 dstToRGB;
dstToRGB.m[0] = vdfloat3c(1, 1, 1);
dstToRGB.m[1] = vdfloat3c(dstBasis.mToRGB[0]);
dstToRGB.m[2] = vdfloat3c(dstBasis.mToRGB[1]);
if (dstLimitedRange) {
dstToRGB.m[0] *= (255.0f / 219.0f);
dstToRGB.m[1] *= (128.0f / 112.0f);
dstToRGB.m[2] *= (128.0f / 112.0f);
}
vdfloat3x3 srcToRGB;
srcToRGB.m[0] = vdfloat3c(1, 1, 1);
srcToRGB.m[1] = vdfloat3c(srcBasis.mToRGB[0]);
srcToRGB.m[2] = vdfloat3c(srcBasis.mToRGB[1]);
if (srcLimitedRange) {
srcToRGB.m[0] *= (255.0f / 219.0f);
srcToRGB.m[1] *= (128.0f / 112.0f);
srcToRGB.m[2] *= (128.0f / 112.0f);
}
vdfloat3x3 xf(srcToRGB * ~dstToRGB);
// We should get a transform that looks like this:
//
// |k 0 0|
// [y cb cr 1] |a c e| = [y' cb' cr]
// |b d f|
// |x y z|
VDASSERT(fabsf(xf.m[0].v[1]) < 1e-5f);
VDASSERT(fabsf(xf.m[0].v[2]) < 1e-5f);
mCoYY = VDRoundToInt32(xf.m[0].v[0] * 65536.0f);
mCoYCb = VDRoundToInt32(xf.m[1].v[0] * 65536.0f);
mCoYCr = VDRoundToInt32(xf.m[2].v[0] * 65536.0f);
mCoCbCb = VDRoundToInt32(xf.m[1].v[1] * 65536.0f);
mCoCbCr = VDRoundToInt32(xf.m[2].v[1] * 65536.0f);
mCoCrCb = VDRoundToInt32(xf.m[1].v[2] * 65536.0f);
mCoCrCr = VDRoundToInt32(xf.m[2].v[2] * 65536.0f);
vdfloat3c srcBias(0, 128.0f/255.0f, 128.0f/255.0f);
if (srcLimitedRange)
srcBias.set(16.0f / 255.0f, 128.0f / 255.0f, 128.0f / 255.0f);
vdfloat3c dstBias(0, 128.0f/255.0f, 128.0f/255.0f);
if (dstLimitedRange)
dstBias.set(16.0f / 255.0f, 128.0f / 255.0f, 128.0f / 255.0f);
vdfloat3 bias = -srcBias * xf + dstBias;
mCoYA = VDRoundToInt32(bias.x * 255.0f * 65536.0f) + 0x8000;
mCoCbA = VDRoundToInt32(bias.y * 255.0f * 65536.0f) + 0x8000;
mCoCrA = VDRoundToInt32(bias.z * 255.0f * 65536.0f) + 0x8000;
}
void VDPixmapGenYCbCrToYCbCrGeneric::Start() {
mpSrcY->Start();
mpSrcCb->Start();
mpSrcCr->Start();
StartWindow(mWidth, 3);
}
const void *VDPixmapGenYCbCrToYCbCrGeneric::GetRow(sint32 y, uint32 index) {
return (const uint8 *)VDPixmapGenYCbCrToRGBBase::GetRow(y, index) + mWindowPitch * index;
}
uint32 VDPixmapGenYCbCrToYCbCrGeneric::GetType(uint32 output) const {
return (mpSrcY->GetType(mSrcIndexY) & ~kVDPixSpace_Mask) | mColorSpace;
}
void VDPixmapGenYCbCrToYCbCrGeneric::Compute(void *dst0, sint32 ypos) {
uint8 *dstCr = (uint8 *)dst0;
uint8 *dstY = dstCr + mWindowPitch;
uint8 *dstCb = dstY + mWindowPitch;
const uint8 *srcY = (const uint8 *)mpSrcY ->GetRow(ypos, mSrcIndexY );
const uint8 *srcCb = (const uint8 *)mpSrcCb->GetRow(ypos, mSrcIndexCb);
const uint8 *srcCr = (const uint8 *)mpSrcCr->GetRow(ypos, mSrcIndexCr);
const sint32 coYY = mCoYY;
const sint32 coYCb = mCoYCb;
const sint32 coYCr = mCoYCr;
const sint32 coYA = mCoYA;
const sint32 coCbCb = mCoCbCb;
const sint32 coCbCr = mCoCbCr;
const sint32 coCbA = mCoCbA;
const sint32 coCrCb = mCoCrCb;
const sint32 coCrCr = mCoCrCr;
const sint32 coCrA = mCoCrA;
for(sint32 i=0; i<mWidth; ++i) {
sint32 y = srcY[i];
sint32 cb = srcCb[i];
sint32 cr = srcCr[i];
sint32 y2 = y*coYY + cb*coYCb + cr*coYCr + coYA;
sint32 cb2 = cb*coCbCb + cr*coCbCr + coCbA;
sint32 cr2 = cb*coCrCb + cr*coCrCr + coCrA;
y2 &= ~y2 >> 31;
cb2 &= ~cb2 >> 31;
cr2 &= ~cr2 >> 31;
y2 |= (0xffffff - y2) >> 31;
cb2 |= (0xffffff - cb2) >> 31;
cr2 |= (0xffffff - cr2) >> 31;
*dstY++ = (uint8)(y2 >> 16);
*dstCb++ = (uint8)(cb2 >> 16);
*dstCr++ = (uint8)(cr2 >> 16);
}
}
////////////////////////////////////////////////////////////////////////////
VDPixmapGenYCbCrToYCbCrGeneric_32F::VDPixmapGenYCbCrToYCbCrGeneric_32F(const VDPixmapGenYCbCrBasis& dstBasis, bool dstLimitedRange, const VDPixmapGenYCbCrBasis& srcBasis, bool srcLimitedRange, uint32 colorSpace)
: mColorSpace(colorSpace)
{
vdfloat3x3 dstToRGB;
dstToRGB.m[0] = vdfloat3c(1, 1, 1);
dstToRGB.m[1] = vdfloat3c(dstBasis.mToRGB[0]);
dstToRGB.m[2] = vdfloat3c(dstBasis.mToRGB[1]);
if (dstLimitedRange) {
dstToRGB.m[0] *= (255.0f / 219.0f);
dstToRGB.m[1] *= (255.0f / 224.0f);
dstToRGB.m[2] *= (255.0f / 224.0f);
}
vdfloat3x3 srcToRGB;
srcToRGB.m[0] = vdfloat3c(1, 1, 1);
srcToRGB.m[1] = vdfloat3c(srcBasis.mToRGB[0]);
srcToRGB.m[2] = vdfloat3c(srcBasis.mToRGB[1]);
if (srcLimitedRange) {
srcToRGB.m[0] *= (255.0f / 219.0f);
srcToRGB.m[1] *= (255.0f / 224.0f);
srcToRGB.m[2] *= (255.0f / 224.0f);
}
vdfloat3x3 xf(srcToRGB * ~dstToRGB);
// We should get a transform that looks like this:
//
// |k 0 0|
// [y cb cr 1] |a c e| = [y' cb' cr]
// |b d f|
// |x y z|
VDASSERT(fabsf(xf.m[0].v[1]) < 1e-5f);
VDASSERT(fabsf(xf.m[0].v[2]) < 1e-5f);
mCoYY = xf.m[0].v[0];
mCoYCb = xf.m[1].v[0];
mCoYCr = xf.m[2].v[0];
mCoCbCb = xf.m[1].v[1];
mCoCbCr = xf.m[2].v[1];
mCoCrCb = xf.m[1].v[2];
mCoCrCr = xf.m[2].v[2];
vdfloat3c srcBias(0, 128.0f/255.0f, 128.0f/255.0f);
if (srcLimitedRange)
srcBias.set(16.0f / 255.0f, 128.0f / 255.0f, 128.0f / 255.0f);
vdfloat3c dstBias(0, 128.0f/255.0f, 128.0f/255.0f);
if (dstLimitedRange)
dstBias.set(16.0f / 255.0f, 128.0f / 255.0f, 128.0f / 255.0f);
vdfloat3 bias = -srcBias * xf + dstBias;
mCoYA = bias.x;
mCoCbA = bias.y;
mCoCrA = bias.z;
}
void VDPixmapGenYCbCrToYCbCrGeneric_32F::Start() {
mpSrcY->Start();
mpSrcCb->Start();
mpSrcCr->Start();
StartWindow(mWidth * sizeof(float), 3);
}
const void *VDPixmapGenYCbCrToYCbCrGeneric_32F::GetRow(sint32 y, uint32 index) {
return (const uint8 *)VDPixmapGenYCbCrToRGBBase::GetRow(y, index) + mWindowPitch * index;
}
uint32 VDPixmapGenYCbCrToYCbCrGeneric_32F::GetType(uint32 output) const {
return (mpSrcY->GetType(mSrcIndexY) & ~kVDPixSpace_Mask) | mColorSpace;
}
void VDPixmapGenYCbCrToYCbCrGeneric_32F::Compute(void *dst0, sint32 ypos) {
float *dstCr = (float *)dst0;
float *dstY = vdptroffset(dstCr, mWindowPitch);
float *dstCb = vdptroffset(dstY, mWindowPitch);
const float *srcY = (const float *)mpSrcY ->GetRow(ypos, mSrcIndexY );
const float *srcCb = (const float *)mpSrcCb->GetRow(ypos, mSrcIndexCb);
const float *srcCr = (const float *)mpSrcCr->GetRow(ypos, mSrcIndexCr);
VDCPUCleanupExtensions();
const float coYY = mCoYY;
const float coYCb = mCoYCb;
const float coYCr = mCoYCr;
const float coYA = mCoYA;
const float coCbCb = mCoCbCb;
const float coCbCr = mCoCbCr;
const float coCbA = mCoCbA;
const float coCrCb = mCoCrCb;
const float coCrCr = mCoCrCr;
const float coCrA = mCoCrA;
for(sint32 i=0; i<mWidth; ++i) {
float y = srcY [i];
float cb = srcCb[i];
float cr = srcCr[i];
*dstY++ = y*coYY + cb*coYCb + cr*coYCr + coYA;
*dstCb++ = cb*coCbCb + cr*coCbCr + coCbA;
*dstCr++ = cb*coCrCb + cr*coCrCr + coCrA;
}
}
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