skia2/include/gpu/effects/GrPorterDuffXferProcessor.h
Mike Reed ce02e71758 Revert "replace SkXfermode obj with SkBlendMode enum in paints"
This reverts commit I4fb489ba6b3f77b458f7e4a99f79c7ad10859135.

Reason for revert: <INSERT REASONING HERE>

Original change's description:
> replace SkXfermode obj with SkBlendMode enum in paints
> 
> BUG=skia:5814
> 
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2714
> 
> Change-Id: I4fb489ba6b3f77b458f7e4a99f79c7ad10859135
> Reviewed-on: https://skia-review.googlesource.com/2714
> Reviewed-by: Florin Malita <fmalita@chromium.org>
> Reviewed-by: Brian Salomon <bsalomon@google.com>
> Commit-Queue: Mike Reed <reed@google.com>
> 

TBR=bsalomon@google.com,fmalita@chromium.org,fmalita@google.com,reed@google.com,reviews@skia.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Change-Id: I3e43f79ef5c1709929663fe63cc1f67cd78270b7
Reviewed-on: https://skia-review.googlesource.com/2871
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
2016-10-03 18:03:29 +00:00

78 lines
3.0 KiB
C++

/*
* Copyright 2014 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef GrPorterDuffXferProcessor_DEFINED
#define GrPorterDuffXferProcessor_DEFINED
#include "GrTypes.h"
#include "GrXferProcessor.h"
#include "SkXfermode.h"
class GrProcOptInfo;
class GrPorterDuffXPFactory : public GrXPFactory {
public:
static sk_sp<GrXPFactory> Make(SkXfermode::Mode mode);
void getInvariantBlendedColor(const GrProcOptInfo& colorPOI,
GrXPFactory::InvariantBlendedColor*) const override;
/** Because src-over is so common we special case it for performance reasons. If this returns
null then the SimpleSrcOverXP() below should be used. */
static GrXferProcessor* CreateSrcOverXferProcessor(const GrCaps& caps,
const GrPipelineOptimizations& optimizations,
bool hasMixedSamples,
const GrXferProcessor::DstTexture*);
/** This XP implements non-LCD src-over using hw blend with no optimizations. It is returned
by reference because it is global and its ref-cnting methods are not thread safe. */
static const GrXferProcessor& SimpleSrcOverXP();
static inline void SrcOverInvariantBlendedColor(
GrColor inputColor,
GrColorComponentFlags validColorFlags,
bool isOpaque,
GrXPFactory::InvariantBlendedColor* blendedColor) {
if (!isOpaque) {
blendedColor->fWillBlendWithDst = true;
blendedColor->fKnownColorFlags = kNone_GrColorComponentFlags;
return;
}
blendedColor->fWillBlendWithDst = false;
blendedColor->fKnownColor = inputColor;
blendedColor->fKnownColorFlags = validColorFlags;
}
static bool SrcOverWillNeedDstTexture(const GrCaps&, const GrPipelineOptimizations&);
private:
GrPorterDuffXPFactory(SkXfermode::Mode);
GrXferProcessor* onCreateXferProcessor(const GrCaps& caps,
const GrPipelineOptimizations& optimizations,
bool hasMixedSamples,
const DstTexture*) const override;
bool onWillReadDstColor(const GrCaps&, const GrPipelineOptimizations&) const override;
bool onIsEqual(const GrXPFactory& xpfBase) const override {
const GrPorterDuffXPFactory& xpf = xpfBase.cast<GrPorterDuffXPFactory>();
return fXfermode == xpf.fXfermode;
}
GR_DECLARE_XP_FACTORY_TEST;
static void TestGetXPOutputTypes(const GrXferProcessor*, int* outPrimary, int* outSecondary);
SkXfermode::Mode fXfermode;
friend class GrPorterDuffTest; // for TestGetXPOutputTypes()
typedef GrXPFactory INHERITED;
};
#endif