static bool Supports(const SkPixmap& dst, const SkPixmap& src, const SkPaint& paint) {
if (dst.colorType() != src.colorType()) {
return false;
}
if (dst.info().gammaCloseToSRGB() != src.info().gammaCloseToSRGB()) {
return false;
}
if (paint.getMaskFilter() || paint.getColorFilter() || paint.getImageFilter()) {
return false;
}
if (0xFF != paint.getAlpha()) {
return false;
}
SkBlendMode mode = paint.getBlendMode();
if (SkBlendMode::kSrc == mode) {
return true;
}
if (SkBlendMode::kSrcOver == mode && src.isOpaque()) {
return true;
}
// At this point memcpy can't be used. The following check for using SrcOver.
if (dst.colorType() != kN32_SkColorType || !dst.info().gammaCloseToSRGB()) {
return false;
}
return SkBlendMode::kSrcOver == mode;
}
SkPaint SkColorSpaceXformer::apply(const SkPaint& src) {
const AutoCachePurge autoPurge(this);
SkPaint dst = src;
// All SkColorSpaces have the same black point.
if (src.getColor() & 0xffffff) {
dst.setColor(this->apply(src.getColor()));
}
if (auto shader = src.getShader()) {
dst.setShader(this->apply(shader));
}
if (auto cf = src.getColorFilter()) {
dst.setColorFilter(this->apply(cf));
}
if (auto looper = src.getDrawLooper()) {
dst.setDrawLooper(looper->makeColorSpace(this));
}
if (auto imageFilter = src.getImageFilter()) {
dst.setImageFilter(this->apply(imageFilter));
}
return dst;
}
void SkOverdrawCanvas::onDrawPaint(const SkPaint& paint) {
if (0 == paint.getColor() && !paint.getColorFilter() && !paint.getShader()) {
// This is a clear, ignore it.
} else {
fList[0]->onDrawPaint(this->overdrawPaint(paint));
}
}
static bool Supports(const SkPixmap& dst, const SkPixmap& src, const SkPaint& paint) {
if (dst.colorType() != src.colorType()) {
return false;
}
if (dst.info().profileType() != src.info().profileType()) {
return false;
}
if (paint.getMaskFilter() || paint.getColorFilter() || paint.getImageFilter()) {
return false;
}
if (0xFF != paint.getAlpha()) {
return false;
}
SkXfermode::Mode mode;
if (!SkXfermode::AsMode(paint.getXfermode(), &mode)) {
return false;
}
if (SkXfermode::kSrc_Mode == mode) {
return true;
}
if (SkXfermode::kSrcOver_Mode == mode && src.isOpaque()) {
return true;
}
return false;
}
SkRGB16_Black_Blitter::SkRGB16_Black_Blitter(const SkPixmap& device, const SkPaint& paint)
: INHERITED(device, paint) {
SkASSERT(paint.getShader() == nullptr);
SkASSERT(paint.getColorFilter() == nullptr);
SkASSERT(paint.isSrcOver());
SkASSERT(paint.getColor() == SK_ColorBLACK);
}
SkRGB16_Black_Blitter::SkRGB16_Black_Blitter(const SkBitmap& device, const SkPaint& paint)
: INHERITED(device, paint) {
SkASSERT(paint.getShader() == NULL);
SkASSERT(paint.getColorFilter() == NULL);
SkASSERT(paint.getXfermode() == NULL);
SkASSERT(paint.getColor() == SK_ColorBLACK);
}
static void apply_paint_colorfilter(const SkPaint& paint, Json::Value* target, bool sendBinaries) {
SkFlattenable* colorFilter = paint.getColorFilter();
if (colorFilter != nullptr) {
Json::Value jsonColorFilter;
flatten(colorFilter, &jsonColorFilter, sendBinaries);
(*target)[SKJSONCANVAS_ATTRIBUTE_COLORFILTER] = jsonColorFilter;
}
}
static bool fold_opacity_layer_color_to_paint(const SkPaint& layerPaint,
bool isSaveLayer,
SkPaint* paint) {
// We assume layerPaint is always from a saveLayer. If isSaveLayer is
// true, we assume paint is too.
// The alpha folding can proceed if the filter layer paint does not have properties which cause
// the resulting filter layer to be "blended" in complex ways to the parent layer. For example,
// looper drawing unmodulated filter layer twice and then modulating the result produces
// different image to drawing modulated filter layer twice.
// TODO: most likely the looper and only some xfer modes are the hard constraints
if (paint->getXfermode() || paint->getLooper()) {
return false;
}
if (!isSaveLayer && paint->getImageFilter()) {
// For normal draws, the paint color is used as one input for the color for the draw. Image
// filter will operate on the result, and thus we can not change the input.
// For layer saves, the image filter is applied to the layer contents. The layer is then
// modulated with the paint color, so it's fine to proceed with the fold for saveLayer
// paints with image filters.
return false;
}
if (paint->getColorFilter()) {
// Filter input depends on the paint color.
// Here we could filter the color if we knew the draw is going to be uniform color. This
// should be detectable as drawPath/drawRect/.. without a shader being uniform, while
// drawBitmap/drawSprite or a shader being non-uniform. However, current matchers don't
// give the type out easily, so just do not optimize that at the moment.
return false;
}
const uint32_t layerColor = layerPaint.getColor();
// The layer paint color must have only alpha component.
if (SK_ColorTRANSPARENT != SkColorSetA(layerColor, SK_AlphaTRANSPARENT)) {
return false;
}
// The layer paint can not have any effects.
if (layerPaint.getPathEffect() ||
layerPaint.getShader() ||
layerPaint.getXfermode() ||
layerPaint.getMaskFilter() ||
layerPaint.getColorFilter() ||
layerPaint.getRasterizer() ||
layerPaint.getLooper() ||
layerPaint.getImageFilter()) {
return false;
}
paint->setAlpha(SkMulDiv255Round(paint->getAlpha(), SkColorGetA(layerColor)));
return true;
}
// Is the supplied paint simply a color?
static bool is_simple(const SkPaint& p) {
return NULL == p.getPathEffect() &&
NULL == p.getShader() &&
NULL == p.getXfermode() &&
NULL == p.getMaskFilter() &&
NULL == p.getColorFilter() &&
NULL == p.getRasterizer() &&
NULL == p.getLooper() &&
NULL == p.getImageFilter();
}
static bool HasAnyEffect(const SkPaint& paint) {
return paint.getPathEffect() ||
paint.getShader() ||
paint.getXfermode() ||
paint.getMaskFilter() ||
paint.getColorFilter() ||
paint.getRasterizer() ||
paint.getLooper() ||
paint.getImageFilter();
}
static uint16_t compute_nondef(const SkPaint& paint, PaintUsage usage) {
// kRespectsStroke_PaintUsage is only valid if other bits are also set
SkASSERT(0 != (usage & ~kRespectsStroke_PaintUsage));
const SkScalar kTextSize_Default = 12;
const SkScalar kTextScaleX_Default = 1;
const SkScalar kTextSkewX_Default = 0;
const SkScalar kStrokeWidth_Default = 0;
const SkScalar kStrokeMiter_Default = 4;
const SkColor kColor_Default = SK_ColorBLACK;
unsigned bits = (paint.getColor() != kColor_Default) ? kColor_NonDef : 0;
if (usage & kText_PaintUsage) {
bits |= (paint.getTextSize() != kTextSize_Default ? kTextSize_NonDef : 0);
bits |= (paint.getTextScaleX() != kTextScaleX_Default ? kTextScaleX_NonDef : 0);
bits |= (paint.getTextSkewX() != kTextSkewX_Default ? kTextSkewX_NonDef : 0);
bits |= (paint.getTypeface() ? kTypeface_NonDef : 0);
}
// TODO: kImage_PaintUsage only needs the shader/maskfilter IF its colortype is kAlpha_8
if (usage & (kVertices_PaintUsage | kDrawPaint_PaintUsage | kImage_PaintUsage |
kText_PaintUsage | kGeometry_PaintUsage | kTextBlob_PaintUsage)) {
bits |= (paint.getShader() ? kShader_NonDef : 0);
}
if (usage & (kText_PaintUsage | kGeometry_PaintUsage | kTextBlob_PaintUsage)) {
bits |= (paint.getPathEffect() ? kPathEffect_NonDef : 0);
bits |= (paint.getRasterizer() ? kRasterizer_NonDef : 0);
if (paint.getStyle() != SkPaint::kFill_Style || (usage & kRespectsStroke_PaintUsage)) {
bits |= (paint.getStrokeWidth() != kStrokeWidth_Default ? kStrokeWidth_NonDef : 0);
bits |= (paint.getStrokeMiter() != kStrokeMiter_Default ? kStrokeMiter_NonDef : 0);
}
}
if (usage &
(kText_PaintUsage | kGeometry_PaintUsage | kImage_PaintUsage | kTextBlob_PaintUsage))
{
bits |= (paint.getMaskFilter() ? kMaskFilter_NonDef : 0);
}
bits |= (paint.getColorFilter() ? kColorFilter_NonDef : 0);
bits |= (paint.getImageFilter() ? kImageFilter_NonDef : 0);
bits |= (paint.getDrawLooper() ? kDrawLooper_NonDef : 0);
return SkToU16(bits);
}
static bool Supports(const SkPixmap& dst, const SkPixmap& src, const SkPaint& paint) {
// the caller has already inspected the colorspace on src and dst
SkASSERT(!SkColorSpaceXformSteps::Required(src.colorSpace(), dst.colorSpace()));
if (dst.colorType() != src.colorType()) {
return false;
}
if (paint.getMaskFilter() || paint.getColorFilter() || paint.getImageFilter()) {
return false;
}
if (0xFF != paint.getAlpha()) {
return false;
}
SkBlendMode mode = paint.getBlendMode();
return SkBlendMode::kSrc == mode || (SkBlendMode::kSrcOver == mode && src.isOpaque());
}
static bool Supports(const SkPixmap& dst, const SkPixmap& src, const SkPaint& paint) {
if (dst.colorType() != src.colorType()) {
return false;
}
if (!SkColorSpace::Equals(dst.colorSpace(), src.colorSpace())) {
return false;
}
if (paint.getMaskFilter() || paint.getColorFilter() || paint.getImageFilter()) {
return false;
}
if (0xFF != paint.getAlpha()) {
return false;
}
SkBlendMode mode = paint.getBlendMode();
return SkBlendMode::kSrc == mode || (SkBlendMode::kSrcOver == mode && src.isOpaque());
}
// Returns true if all pixels painted will be opaque.
static inline bool paintIsOpaque(const SkPaint& paint, const SkBitmap* bitmap = 0, bool checkFillOnly = false)
{
if (paint.getAlpha() < 0xFF)
return false;
if (!checkFillOnly && paint.getStyle() != SkPaint::kFill_Style && paint.isAntiAlias())
return false;
SkShader* shader = paint.getShader();
if (shader && !shader->isOpaque())
return false;
if (bitmap && !bitmap->isOpaque())
return false;
if (paint.getLooper())
return false;
if (paint.getImageFilter())
return false;
if (paint.getMaskFilter())
return false;
SkColorFilter* colorFilter = paint.getColorFilter();
if (colorFilter && !(colorFilter->getFlags() & SkColorFilter::kAlphaUnchanged_Flag))
return false;
return true;
}
Sprite_D32_XferFilter(const SkBitmap& source, const SkPaint& paint)
: SkSpriteBlitter(source) {
fColorFilter = paint.getColorFilter();
SkSafeRef(fColorFilter);
fXfermode = paint.getXfermode();
SkSafeRef(fXfermode);
fBufferSize = 0;
fBuffer = NULL;
unsigned flags32 = 0;
if (255 != paint.getAlpha()) {
flags32 |= SkBlitRow::kGlobalAlpha_Flag32;
}
if (!source.isOpaque()) {
flags32 |= SkBlitRow::kSrcPixelAlpha_Flag32;
}
fProc32 = SkBlitRow::Factory32(flags32);
fAlpha = paint.getAlpha();
}
bool SkDevice::filterTextFlags(const SkPaint& paint, TextFlags* flags) {
if (!paint.isLCDRenderText()) {
// we're cool with the paint as is
return false;
}
if (SkBitmap::kARGB_8888_Config != fBitmap.config() ||
paint.getShader() ||
paint.getXfermode() || // unless its srcover
paint.getMaskFilter() ||
paint.getRasterizer() ||
paint.getColorFilter() ||
paint.getPathEffect() ||
paint.isFakeBoldText() ||
paint.getStyle() != SkPaint::kFill_Style) {
// turn off lcd
flags->fFlags = paint.getFlags() & ~SkPaint::kLCDRenderText_Flag;
flags->fHinting = paint.getHinting();
return true;
}
// we're cool with the paint as is
return false;
}
static inline bool skpaint_to_grpaint_impl(GrContext* context,
const GrColorSpaceInfo& colorSpaceInfo,
const SkPaint& skPaint,
const SkMatrix& viewM,
std::unique_ptr<GrFragmentProcessor>* shaderProcessor,
SkBlendMode* primColorMode,
GrPaint* grPaint) {
grPaint->setAllowSRGBInputs(colorSpaceInfo.isGammaCorrect());
// Convert SkPaint color to 4f format, including optional linearizing and gamut conversion.
GrColor4f origColor = SkColorToUnpremulGrColor4f(skPaint.getColor(), colorSpaceInfo);
const GrFPArgs fpArgs(context, &viewM, skPaint.getFilterQuality(), &colorSpaceInfo);
// Setup the initial color considering the shader, the SkPaint color, and the presence or not
// of per-vertex colors.
std::unique_ptr<GrFragmentProcessor> shaderFP;
if (!primColorMode || blend_requires_shader(*primColorMode)) {
if (shaderProcessor) {
shaderFP = std::move(*shaderProcessor);
} else if (const auto* shader = as_SB(skPaint.getShader())) {
shaderFP = shader->asFragmentProcessor(fpArgs);
if (!shaderFP) {
return false;
}
}
}
// Set this in below cases if the output of the shader/paint-color/paint-alpha/primXfermode is
// a known constant value. In that case we can simply apply a color filter during this
// conversion without converting the color filter to a GrFragmentProcessor.
bool applyColorFilterToPaintColor = false;
if (shaderFP) {
if (primColorMode) {
// There is a blend between the primitive color and the shader color. The shader sees
// the opaque paint color. The shader's output is blended using the provided mode by
// the primitive color. The blended color is then modulated by the paint's alpha.
// The geometry processor will insert the primitive color to start the color chain, so
// the GrPaint color will be ignored.
GrColor4f shaderInput = origColor.opaque();
shaderFP = GrFragmentProcessor::OverrideInput(std::move(shaderFP), shaderInput);
shaderFP = GrXfermodeFragmentProcessor::MakeFromSrcProcessor(std::move(shaderFP),
*primColorMode);
// The above may return null if compose results in a pass through of the prim color.
if (shaderFP) {
grPaint->addColorFragmentProcessor(std::move(shaderFP));
}
// We can ignore origColor here - alpha is unchanged by gamma
GrColor paintAlpha = SkColorAlphaToGrColor(skPaint.getColor());
if (GrColor_WHITE != paintAlpha) {
// No gamut conversion - paintAlpha is a (linear) alpha value, splatted to all
// color channels. It's value should be treated as the same in ANY color space.
grPaint->addColorFragmentProcessor(GrConstColorProcessor::Make(
GrColor4f::FromGrColor(paintAlpha),
GrConstColorProcessor::InputMode::kModulateRGBA));
}
} else {
// The shader's FP sees the paint unpremul color
grPaint->setColor4f(origColor);
grPaint->addColorFragmentProcessor(std::move(shaderFP));
}
} else {
if (primColorMode) {
// There is a blend between the primitive color and the paint color. The blend considers
// the opaque paint color. The paint's alpha is applied to the post-blended color.
auto processor = GrConstColorProcessor::Make(origColor.opaque(),
GrConstColorProcessor::InputMode::kIgnore);
processor = GrXfermodeFragmentProcessor::MakeFromSrcProcessor(std::move(processor),
*primColorMode);
if (processor) {
grPaint->addColorFragmentProcessor(std::move(processor));
}
grPaint->setColor4f(origColor.opaque());
// We can ignore origColor here - alpha is unchanged by gamma
GrColor paintAlpha = SkColorAlphaToGrColor(skPaint.getColor());
if (GrColor_WHITE != paintAlpha) {
// No gamut conversion - paintAlpha is a (linear) alpha value, splatted to all
// color channels. It's value should be treated as the same in ANY color space.
grPaint->addColorFragmentProcessor(GrConstColorProcessor::Make(
GrColor4f::FromGrColor(paintAlpha),
GrConstColorProcessor::InputMode::kModulateRGBA));
}
} else {
// No shader, no primitive color.
grPaint->setColor4f(origColor.premul());
applyColorFilterToPaintColor = true;
}
}
SkColorFilter* colorFilter = skPaint.getColorFilter();
if (colorFilter) {
if (applyColorFilterToPaintColor) {
// If we're in legacy mode, we *must* avoid using the 4f version of the color filter,
// because that will combine with the linearized version of the stored color.
if (colorSpaceInfo.isGammaCorrect()) {
grPaint->setColor4f(GrColor4f::FromSkColor4f(
colorFilter->filterColor4f(origColor.toSkColor4f())).premul());
} else {
grPaint->setColor4f(SkColorToPremulGrColor4fLegacy(
colorFilter->filterColor(skPaint.getColor())));
}
} else {
auto cfFP = colorFilter->asFragmentProcessor(context, colorSpaceInfo);
if (cfFP) {
grPaint->addColorFragmentProcessor(std::move(cfFP));
} else {
return false;
}
}
}
SkMaskFilterBase* maskFilter = as_MFB(skPaint.getMaskFilter());
if (maskFilter) {
if (auto mfFP = maskFilter->asFragmentProcessor(fpArgs)) {
grPaint->addCoverageFragmentProcessor(std::move(mfFP));
}
}
// When the xfermode is null on the SkPaint (meaning kSrcOver) we need the XPFactory field on
// the GrPaint to also be null (also kSrcOver).
SkASSERT(!grPaint->getXPFactory());
if (!skPaint.isSrcOver()) {
grPaint->setXPFactory(SkBlendMode_AsXPFactory(skPaint.getBlendMode()));
}
#ifndef SK_IGNORE_GPU_DITHER
// Conservative default, in case GrPixelConfigToColorType() fails.
SkColorType ct = SkColorType::kRGB_565_SkColorType;
GrPixelConfigToColorType(colorSpaceInfo.config(), &ct);
if (SkPaintPriv::ShouldDither(skPaint, ct) && grPaint->numColorFragmentProcessors() > 0 &&
!colorSpaceInfo.isGammaCorrect()) {
auto ditherFP = GrDitherEffect::Make(colorSpaceInfo.config());
if (ditherFP) {
grPaint->addColorFragmentProcessor(std::move(ditherFP));
}
}
#endif
return true;
}
static bool just_solid_color(const SkPaint& p) {
return SK_AlphaOPAQUE == p.getAlpha() && !p.getColorFilter() && !p.getShader();
}
static bool needs_layer(const SkPaint& paint) {
return 0xFF != paint.getAlpha() ||
paint.getColorFilter() ||
paint.getImageFilter() ||
SkXfermode::IsMode(paint.getXfermode(), SkXfermode::kSrcOver_Mode);
}
static inline bool skpaint_to_grpaint_impl(GrContext* context,
const SkPaint& skPaint,
const SkMatrix& viewM,
const GrFragmentProcessor** shaderProcessor,
SkXfermode::Mode* primColorMode,
bool primitiveIsSrc,
GrPaint* grPaint) {
grPaint->setAntiAlias(skPaint.isAntiAlias());
// Setup the initial color considering the shader, the SkPaint color, and the presence or not
// of per-vertex colors.
SkAutoTUnref<const GrFragmentProcessor> aufp;
const GrFragmentProcessor* shaderFP = nullptr;
if (!primColorMode || blend_requires_shader(*primColorMode, primitiveIsSrc)) {
if (shaderProcessor) {
shaderFP = *shaderProcessor;
} else if (const SkShader* shader = skPaint.getShader()) {
aufp.reset(shader->asFragmentProcessor(context, viewM, nullptr,
skPaint.getFilterQuality()));
shaderFP = aufp;
if (!shaderFP) {
return false;
}
}
}
// Set this in below cases if the output of the shader/paint-color/paint-alpha/primXfermode is
// a known constant value. In that case we can simply apply a color filter during this
// conversion without converting the color filter to a GrFragmentProcessor.
bool applyColorFilterToPaintColor = false;
if (shaderFP) {
if (primColorMode) {
// There is a blend between the primitive color and the shader color. The shader sees
// the opaque paint color. The shader's output is blended using the provided mode by
// the primitive color. The blended color is then modulated by the paint's alpha.
// The geometry processor will insert the primitive color to start the color chain, so
// the GrPaint color will be ignored.
GrColor shaderInput = SkColorToOpaqueGrColor(skPaint.getColor());
shaderFP = GrFragmentProcessor::OverrideInput(shaderFP, shaderInput);
aufp.reset(shaderFP);
if (primitiveIsSrc) {
shaderFP = GrXfermodeFragmentProcessor::CreateFromDstProcessor(shaderFP,
*primColorMode);
} else {
shaderFP = GrXfermodeFragmentProcessor::CreateFromSrcProcessor(shaderFP,
*primColorMode);
}
aufp.reset(shaderFP);
// The above may return null if compose results in a pass through of the prim color.
if (shaderFP) {
grPaint->addColorFragmentProcessor(shaderFP);
}
GrColor paintAlpha = SkColorAlphaToGrColor(skPaint.getColor());
if (GrColor_WHITE != paintAlpha) {
grPaint->addColorFragmentProcessor(GrConstColorProcessor::Create(
paintAlpha, GrConstColorProcessor::kModulateRGBA_InputMode))->unref();
}
} else {
// The shader's FP sees the paint unpremul color
grPaint->setColor(SkColorToUnpremulGrColor(skPaint.getColor()));
grPaint->addColorFragmentProcessor(shaderFP);
}
} else {
if (primColorMode) {
// There is a blend between the primitive color and the paint color. The blend considers
// the opaque paint color. The paint's alpha is applied to the post-blended color.
SkAutoTUnref<const GrFragmentProcessor> processor(
GrConstColorProcessor::Create(SkColorToOpaqueGrColor(skPaint.getColor()),
GrConstColorProcessor::kIgnore_InputMode));
if (primitiveIsSrc) {
processor.reset(GrXfermodeFragmentProcessor::CreateFromDstProcessor(processor,
*primColorMode));
} else {
processor.reset(GrXfermodeFragmentProcessor::CreateFromSrcProcessor(processor,
*primColorMode));
}
if (processor) {
grPaint->addColorFragmentProcessor(processor);
}
grPaint->setColor(SkColorToOpaqueGrColor(skPaint.getColor()));
GrColor paintAlpha = SkColorAlphaToGrColor(skPaint.getColor());
if (GrColor_WHITE != paintAlpha) {
grPaint->addColorFragmentProcessor(GrConstColorProcessor::Create(
paintAlpha, GrConstColorProcessor::kModulateRGBA_InputMode))->unref();
}
} else {
// No shader, no primitive color.
grPaint->setColor(SkColorToPremulGrColor(skPaint.getColor()));
applyColorFilterToPaintColor = true;
}
}
SkColorFilter* colorFilter = skPaint.getColorFilter();
if (colorFilter) {
if (applyColorFilterToPaintColor) {
grPaint->setColor(SkColorToPremulGrColor(colorFilter->filterColor(skPaint.getColor())));
} else {
SkAutoTUnref<const GrFragmentProcessor> cfFP(
colorFilter->asFragmentProcessor(context));
if (cfFP) {
grPaint->addColorFragmentProcessor(cfFP);
} else {
return false;
}
}
}
SkXfermode* mode = skPaint.getXfermode();
GrXPFactory* xpFactory = nullptr;
if (!SkXfermode::AsXPFactory(mode, &xpFactory)) {
// Fall back to src-over
// return false here?
xpFactory = GrPorterDuffXPFactory::Create(SkXfermode::kSrcOver_Mode);
}
SkASSERT(xpFactory);
grPaint->setXPFactory(xpFactory)->unref();
#ifndef SK_IGNORE_GPU_DITHER
if (skPaint.isDither() && grPaint->numColorFragmentProcessors() > 0) {
grPaint->addColorFragmentProcessor(GrDitherEffect::Create())->unref();
}
#endif
return true;
}
static bool changes_alpha(const SkPaint& paint) {
SkColorFilter* cf = paint.getColorFilter();
return cf && !(cf->getFlags() & SkColorFilter::kAlphaUnchanged_Flag);
}
// Even with kEntirePaint_Bits, we always ensure that the master paint's
// text-encoding is respected, since that controls how we interpret the
// text/length parameters of a draw[Pos]Text call.
void SkLayerDrawLooper::ApplyInfo(SkPaint* dst, const SkPaint& src,
const LayerInfo& info) {
uint32_t mask = info.fFlagsMask;
dst->setFlags((dst->getFlags() & ~mask) | (src.getFlags() & mask));
dst->setColor(xferColor(src.getColor(), dst->getColor(), info.fColorMode));
BitFlags bits = info.fPaintBits;
SkPaint::TextEncoding encoding = dst->getTextEncoding();
if (0 == bits) {
return;
}
if (kEntirePaint_Bits == bits) {
// we've already computed these, so save it from the assignment
uint32_t f = dst->getFlags();
SkColor c = dst->getColor();
*dst = src;
dst->setFlags(f);
dst->setColor(c);
dst->setTextEncoding(encoding);
return;
}
if (bits & kStyle_Bit) {
dst->setStyle(src.getStyle());
dst->setStrokeWidth(src.getStrokeWidth());
dst->setStrokeMiter(src.getStrokeMiter());
dst->setStrokeCap(src.getStrokeCap());
dst->setStrokeJoin(src.getStrokeJoin());
}
if (bits & kTextSkewX_Bit) {
dst->setTextSkewX(src.getTextSkewX());
}
if (bits & kPathEffect_Bit) {
dst->setPathEffect(src.getPathEffect());
}
if (bits & kMaskFilter_Bit) {
dst->setMaskFilter(src.getMaskFilter());
}
if (bits & kShader_Bit) {
dst->setShader(src.getShader());
}
if (bits & kColorFilter_Bit) {
dst->setColorFilter(src.getColorFilter());
}
if (bits & kXfermode_Bit) {
dst->setXfermode(src.getXfermode());
}
// we don't override these
#if 0
dst->setTypeface(src.getTypeface());
dst->setTextSize(src.getTextSize());
dst->setTextScaleX(src.getTextScaleX());
dst->setRasterizer(src.getRasterizer());
dst->setLooper(src.getLooper());
dst->setTextEncoding(src.getTextEncoding());
dst->setHinting(src.getHinting());
#endif
}
static bool paintIsDefault(const SkPaint& paint) {
return paint.getAlpha() == 255
&& paint.getColorFilter() == nullptr
&& paint.getShader() == nullptr;
}
static bool paintsAreEquivalent(const SkPaint& a, const SkPaint& b) {
// Note: don't check color, since all currently mergeable ops can merge across colors
return a.getAlpha() == b.getAlpha()
&& a.getColorFilter() == b.getColorFilter()
&& a.getShader() == b.getShader();
}
SkA8_Coverage_Blitter::SkA8_Coverage_Blitter(const SkPixmap& device,
const SkPaint& paint) : SkRasterBlitter(device) {
SkASSERT(nullptr == paint.getShader());
SkASSERT(paint.isSrcOver());
SkASSERT(nullptr == paint.getColorFilter());
}
void SkPDFDevice::updateGSFromPaint(const SkPaint& paint, bool forText) {
SkASSERT(paint.getPathEffect() == NULL);
NOT_IMPLEMENTED(paint.getMaskFilter() != NULL, false);
NOT_IMPLEMENTED(paint.getColorFilter() != NULL, false);
SkPaint newPaint = paint;
// PDF treats a shader as a color, so we only set one or the other.
SkRefPtr<SkPDFShader> pdfShader;
const SkShader* shader = newPaint.getShader();
if (shader) {
// PDF positions patterns relative to the initial transform, so
// we need to apply the current transform to the shader parameters.
SkMatrix transform = fGraphicStack[fGraphicStackIndex].fTransform;
if (fFlipOrigin == kFlip_OriginTransform) {
transform.postScale(1, -1);
transform.postTranslate(0, fHeight);
}
// PDF doesn't support kClamp_TileMode, so we simulate it by making
// a pattern the size of the drawing service.
SkIRect bounds = fGraphicStack[fGraphicStackIndex].fClip.getBounds();
pdfShader = SkPDFShader::getPDFShader(*shader, transform, bounds);
SkSafeUnref(pdfShader.get()); // getShader and SkRefPtr both took a ref
// A color shader is treated as an invalid shader so we don't have
// to set a shader just for a color.
if (pdfShader.get() == NULL) {
newPaint.setColor(0);
// Check for a color shader.
SkShader::GradientInfo gradientInfo;
SkColor gradientColor;
gradientInfo.fColors = &gradientColor;
gradientInfo.fColorOffsets = NULL;
gradientInfo.fColorCount = 1;
if (shader->asAGradient(&gradientInfo) ==
SkShader::kColor_GradientType) {
newPaint.setColor(gradientColor);
}
}
}
if (pdfShader) {
// pdfShader has been canonicalized so we can directly compare
// pointers.
if (fGraphicStack[fGraphicStackIndex].fShader != pdfShader.get()) {
int resourceIndex = fShaderResources.find(pdfShader.get());
if (resourceIndex < 0) {
resourceIndex = fShaderResources.count();
fShaderResources.push(pdfShader.get());
pdfShader->ref();
}
fContent.writeText("/Pattern CS /Pattern cs /P");
fContent.writeDecAsText(resourceIndex);
fContent.writeText(" SCN /P");
fContent.writeDecAsText(resourceIndex);
fContent.writeText(" scn\n");
fGraphicStack[fGraphicStackIndex].fShader = pdfShader.get();
}
} else {
SkColor newColor = newPaint.getColor();
newColor = SkColorSetA(newColor, 0xFF);
if (fGraphicStack[fGraphicStackIndex].fShader ||
fGraphicStack[fGraphicStackIndex].fColor != newColor) {
emitPDFColor(newColor, &fContent);
fContent.writeText("RG ");
emitPDFColor(newColor, &fContent);
fContent.writeText("rg\n");
fGraphicStack[fGraphicStackIndex].fColor = newColor;
fGraphicStack[fGraphicStackIndex].fShader = NULL;
}
}
SkRefPtr<SkPDFGraphicState> newGraphicState =
SkPDFGraphicState::getGraphicStateForPaint(newPaint);
newGraphicState->unref(); // getGraphicState and SkRefPtr both took a ref.
// newGraphicState has been canonicalized so we can directly compare
// pointers.
if (fGraphicStack[fGraphicStackIndex].fGraphicState !=
newGraphicState.get()) {
int resourceIndex = fGraphicStateResources.find(newGraphicState.get());
if (resourceIndex < 0) {
resourceIndex = fGraphicStateResources.count();
fGraphicStateResources.push(newGraphicState.get());
newGraphicState->ref();
}
fContent.writeText("/G");
fContent.writeDecAsText(resourceIndex);
fContent.writeText(" gs\n");
fGraphicStack[fGraphicStackIndex].fGraphicState = newGraphicState.get();
}
if (forText) {
if (fGraphicStack[fGraphicStackIndex].fTextScaleX !=
newPaint.getTextScaleX()) {
SkScalar scale = newPaint.getTextScaleX();
SkScalar pdfScale = SkScalarMul(scale, SkIntToScalar(100));
SkPDFScalar::Append(pdfScale, &fContent);
fContent.writeText(" Tz\n");
fGraphicStack[fGraphicStackIndex].fTextScaleX = scale;
}
if (fGraphicStack[fGraphicStackIndex].fTextFill !=
newPaint.getStyle()) {
SK_COMPILE_ASSERT(SkPaint::kFill_Style == 0, enum_must_match_value);
SK_COMPILE_ASSERT(SkPaint::kStroke_Style == 1,
enum_must_match_value);
SK_COMPILE_ASSERT(SkPaint::kStrokeAndFill_Style == 2,
enum_must_match_value);
fContent.writeDecAsText(newPaint.getStyle());
fContent.writeText(" Tr\n");
fGraphicStack[fGraphicStackIndex].fTextFill = newPaint.getStyle();
}
}
}
bool SkPaint2GrPaintNoShader(GrContext* context, GrRenderTarget* rt, const SkPaint& skPaint,
GrColor paintColor, bool constantColor, GrPaint* grPaint) {
grPaint->setDither(skPaint.isDither());
grPaint->setAntiAlias(skPaint.isAntiAlias());
SkXfermode* mode = skPaint.getXfermode();
GrXPFactory* xpFactory = NULL;
if (!SkXfermode::AsXPFactory(mode, &xpFactory)) {
// Fall back to src-over
// return false here?
xpFactory = GrPorterDuffXPFactory::Create(SkXfermode::kSrcOver_Mode);
}
SkASSERT(xpFactory);
grPaint->setXPFactory(xpFactory)->unref();
//set the color of the paint to the one of the parameter
grPaint->setColor(paintColor);
SkColorFilter* colorFilter = skPaint.getColorFilter();
if (colorFilter) {
// if the source color is a constant then apply the filter here once rather than per pixel
// in a shader.
if (constantColor) {
SkColor filtered = colorFilter->filterColor(skPaint.getColor());
grPaint->setColor(SkColor2GrColor(filtered));
} else {
SkTDArray<GrFragmentProcessor*> array;
// return false if failed?
if (colorFilter->asFragmentProcessors(context, grPaint->getProcessorDataManager(),
&array)) {
for (int i = 0; i < array.count(); ++i) {
grPaint->addColorProcessor(array[i]);
array[i]->unref();
}
}
}
}
#ifndef SK_IGNORE_GPU_DITHER
// If the dither flag is set, then we need to see if the underlying context
// supports it. If not, then install a dither effect.
if (skPaint.isDither() && grPaint->numColorStages() > 0) {
// What are we rendering into?
SkASSERT(rt);
// Suspect the dithering flag has no effect on these configs, otherwise
// fall back on setting the appropriate state.
if (GrPixelConfigIs8888(rt->config()) ||
GrPixelConfigIs8888(rt->config())) {
// The dither flag is set and the target is likely
// not going to be dithered by the GPU.
SkAutoTUnref<GrFragmentProcessor> fp(GrDitherEffect::Create());
if (fp.get()) {
grPaint->addColorProcessor(fp);
grPaint->setDither(false);
}
}
}
#endif
return true;
}
void SkFlatPaint::dump() const {
SkPaint defaultPaint;
SkFlattenableReadBuffer buffer(fPaintData);
SkTypeface* typeface = (SkTypeface*) buffer.readPtr();
char pBuffer[DUMP_BUFFER_SIZE];
char* bufferPtr = pBuffer;
bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
"paint: ");
if (typeface != defaultPaint.getTypeface())
bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
"typeface:%p ", typeface);
SkScalar textSize = buffer.readScalar();
if (textSize != defaultPaint.getTextSize())
bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
"textSize:%g ", SkScalarToFloat(textSize));
SkScalar textScaleX = buffer.readScalar();
if (textScaleX != defaultPaint.getTextScaleX())
bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
"textScaleX:%g ", SkScalarToFloat(textScaleX));
SkScalar textSkewX = buffer.readScalar();
if (textSkewX != defaultPaint.getTextSkewX())
bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
"textSkewX:%g ", SkScalarToFloat(textSkewX));
const SkPathEffect* pathEffect = (const SkPathEffect*) buffer.readFlattenable();
if (pathEffect != defaultPaint.getPathEffect())
bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
"pathEffect:%p ", pathEffect);
SkDELETE(pathEffect);
const SkShader* shader = (const SkShader*) buffer.readFlattenable();
if (shader != defaultPaint.getShader())
bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
"shader:%p ", shader);
SkDELETE(shader);
const SkXfermode* xfermode = (const SkXfermode*) buffer.readFlattenable();
if (xfermode != defaultPaint.getXfermode())
bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
"xfermode:%p ", xfermode);
SkDELETE(xfermode);
const SkMaskFilter* maskFilter = (const SkMaskFilter*) buffer.readFlattenable();
if (maskFilter != defaultPaint.getMaskFilter())
bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
"maskFilter:%p ", maskFilter);
SkDELETE(maskFilter);
const SkColorFilter* colorFilter = (const SkColorFilter*) buffer.readFlattenable();
if (colorFilter != defaultPaint.getColorFilter())
bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
"colorFilter:%p ", colorFilter);
SkDELETE(colorFilter);
const SkRasterizer* rasterizer = (const SkRasterizer*) buffer.readFlattenable();
if (rasterizer != defaultPaint.getRasterizer())
bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
"rasterizer:%p ", rasterizer);
SkDELETE(rasterizer);
const SkDrawLooper* drawLooper = (const SkDrawLooper*) buffer.readFlattenable();
if (drawLooper != defaultPaint.getLooper())
bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
"drawLooper:%p ", drawLooper);
SkDELETE(drawLooper);
unsigned color = buffer.readU32();
if (color != defaultPaint.getColor())
bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
"color:0x%x ", color);
SkScalar strokeWidth = buffer.readScalar();
if (strokeWidth != defaultPaint.getStrokeWidth())
bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
"strokeWidth:%g ", SkScalarToFloat(strokeWidth));
SkScalar strokeMiter = buffer.readScalar();
if (strokeMiter != defaultPaint.getStrokeMiter())
bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
"strokeMiter:%g ", SkScalarToFloat(strokeMiter));
unsigned flags = buffer.readU16();
if (flags != defaultPaint.getFlags())
bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
"flags:0x%x ", flags);
int align = buffer.readU8();
if (align != defaultPaint.getTextAlign())
bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
"align:0x%x ", align);
int strokeCap = buffer.readU8();
if (strokeCap != defaultPaint.getStrokeCap())
bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
"strokeCap:0x%x ", strokeCap);
int strokeJoin = buffer.readU8();
if (strokeJoin != defaultPaint.getStrokeJoin())
bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
"align:0x%x ", strokeJoin);
int style = buffer.readU8();
if (style != defaultPaint.getStyle())
bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
"style:0x%x ", style);
int textEncoding = buffer.readU8();
if (textEncoding != defaultPaint.getTextEncoding())
bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
"textEncoding:0x%x ", textEncoding);
SkDebugf("%s\n", pBuffer);
}
