skia2/include/gpu/effects/GrCoverageSetOpXP.h
Brian Salomon 5be6c95fa9 Revert "Revert "Make it possible to query GrXPFactory for dst texture without GrPipelineAnalysis.""
This reverts commit 3329cceab5.

Reason for revert: Bot failures are unrelated to the original change.

Change-Id: I21b5927dc4384a25930bdefe16e57bcc9276ffa4
Reviewed-on: https://skia-review.googlesource.com/7347
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
2017-01-20 20:04:01 +00:00

57 lines
1.7 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 GrCoverageSetOpXP_DEFINED
#define GrCoverageSetOpXP_DEFINED
#include "GrTypes.h"
#include "GrXferProcessor.h"
#include "SkRegion.h"
class GrProcOptInfo;
// See the comment above GrXPFactory's definition about this warning suppression.
#if defined(__GNUC__) || defined(__clang)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wnon-virtual-dtor"
#endif
/**
* This xfer processor directly blends the the src coverage with the dst using a set operator. It is
* useful for rendering coverage masks using CSG. It can optionally invert the src coverage before
* applying the set operator.
*/
class GrCoverageSetOpXPFactory : public GrXPFactory {
public:
static const GrXPFactory* Get(SkRegion::Op regionOp, bool invertCoverage = false);
void getInvariantBlendedColor(const GrProcOptInfo& colorPOI,
GrXPFactory::InvariantBlendedColor*) const override;
private:
constexpr GrCoverageSetOpXPFactory(SkRegion::Op regionOp, bool invertCoverage);
GrXferProcessor* onCreateXferProcessor(const GrCaps&,
const GrPipelineAnalysis&,
bool hasMixedSamples,
const DstTexture*) const override;
bool willReadDstColor(const GrCaps&, ColorType, CoverageType) const override { return false; }
GR_DECLARE_XP_FACTORY_TEST;
SkRegion::Op fRegionOp;
bool fInvertCoverage;
typedef GrXPFactory INHERITED;
};
#if defined(__GNUC__) || defined(__clang)
#pragma GCC diagnostic pop
#endif
#endif