void Init(SkCanvas *aCanvas, const DrawOptions& aOptions, const Rect* aMaskBounds)
{
mPaint.setXfermodeMode(GfxOpToSkiaOp(aOptions.mCompositionOp));
mCanvas = aCanvas;
//TODO: Can we set greyscale somehow?
if (aOptions.mAntialiasMode != AntialiasMode::NONE) {
mPaint.setAntiAlias(true);
} else {
mPaint.setAntiAlias(false);
}
Rect clipBounds = GetClipBounds(aCanvas);
bool needsGroup = !IsOperatorBoundByMask(aOptions.mCompositionOp) &&
(!aMaskBounds || !aMaskBounds->Contains(clipBounds));
// TODO: We could skip the temporary for operator_source and just
// clear the clip rect. The other operators would be harder
// but could be worth it to skip pushing a group.
if (needsGroup) {
mPaint.setXfermodeMode(SkXfermode::kSrcOver_Mode);
SkPaint temp;
temp.setXfermodeMode(GfxOpToSkiaOp(aOptions.mCompositionOp));
temp.setAlpha(ColorFloatToByte(aOptions.mAlpha));
//TODO: Get a rect here
mCanvas->saveLayer(nullptr, &temp);
mNeedsRestore = true;
} else {
mPaint.setAlpha(ColorFloatToByte(aOptions.mAlpha));
mAlpha = aOptions.mAlpha;
}
mPaint.setFilterLevel(SkPaint::kLow_FilterLevel);
}
/*
================
PackColor
================
*/
dword PackColor( const idVec4 &color ) {
dword dw, dx, dy, dz;
dx = ColorFloatToByte( color.x );
dy = ColorFloatToByte( color.y );
dz = ColorFloatToByte( color.z );
dw = ColorFloatToByte( color.w );
#if SDL_BYTEORDER == SDL_LIL_ENDIAN
return ( dx << 0 ) | ( dy << 8 ) | ( dz << 16 ) | ( dw << 24 );
#else
return ( dx << 24 ) | ( dy << 16 ) | ( dz << 8 ) | ( dw << 0 );
#endif
}
/*
================
PackColor
================
*/
dword PackColor( const idVec4 &color ) {
dword dw, dx, dy, dz;
dx = ColorFloatToByte( color.x );
dy = ColorFloatToByte( color.y );
dz = ColorFloatToByte( color.z );
dw = ColorFloatToByte( color.w );
#if defined(_WIN32) || defined(__linux__) || (defined(MACOS_X) && defined(__i386__))
return ( dx << 0 ) | ( dy << 8 ) | ( dz << 16 ) | ( dw << 24 );
#elif (defined(MACOS_X) && defined(__ppc__))
return ( dx << 24 ) | ( dy << 16 ) | ( dz << 8 ) | ( dw << 0 );
#else
#error OS define is required!
#endif
}
/*
================
PackColor
================
*/
dword PackColor( const idVec4 &color ) {
dword dw, dx, dy, dz;
dx = ColorFloatToByte( color.x );
dy = ColorFloatToByte( color.y );
dz = ColorFloatToByte( color.z );
dw = ColorFloatToByte( color.w );
#if defined(ID_LITTLE_ENDIAN)
return ( dx << 0 ) | ( dy << 8 ) | ( dz << 16 ) | ( dw << 24 );
#elif defined(ID_BIG_ENDIAN)
return ( dx << 24 ) | ( dy << 16 ) | ( dz << 8 ) | ( dw << 0 );
#else
#error unknown endianness!
#endif
}
