SkBlendShader.cpp File Reference

#include "src/shaders/SkBlendShader.h"
#include "include/core/SkBlendMode.h"
#include "include/core/SkBlender.h"
#include "include/core/SkData.h"
#include "include/core/SkFlattenable.h"
#include "include/effects/SkRuntimeEffect.h"
#include "src/base/SkArenaAlloc.h"
#include "src/core/SkBlendModePriv.h"
#include "src/core/SkBlenderBase.h"
#include "src/core/SkEffectPriv.h"
#include "src/core/SkKnownRuntimeEffects.h"
#include "src/core/SkRasterPipeline.h"
#include "src/core/SkRasterPipelineOpContexts.h"
#include "src/core/SkRasterPipelineOpList.h"
#include "src/core/SkReadBuffer.h"
#include "src/core/SkWriteBuffer.h"
#include "src/shaders/SkShaderBase.h"
#include <optional>

Go to the source code of this file.

Functions
static float *	append_two_shaders (const SkStageRec &rec, const SkShaders::MatrixRec &mRec, SkShader *s0, SkShader *s1)
void	SkRegisterBlendShaderFlattenable ()

Function Documentation

append_two_shaders()

static float * append_two_shaders ( const SkStageRec &  rec, const SkShaders::MatrixRec &  mRec, SkShader *  s0, SkShader *  s1  )

static

Definition at line 58 of file SkBlendShader.cpp.

                                               {
    struct Storage {
        float fCoords[2 * SkRasterPipeline_kMaxStride];
        float fRes0[4 * SkRasterPipeline_kMaxStride];
    };
    auto storage = rec.fAlloc->make<Storage>();
 
    // Note we cannot simply apply mRec here and then unconditionally store the coordinates. When
    // building for Android Framework it would interrupt the backwards local matrix concatenation if
    // mRec had a pending local matrix and either of the children also had a local matrix.
    // b/256873449
    if (mRec.rasterPipelineCoordsAreSeeded()) {
        rec.fPipeline->append(SkRasterPipelineOp::store_src_rg, storage->fCoords);
    }
    if (!as_SB(s0)->appendStages(rec, mRec)) {
        return nullptr;
    }
    rec.fPipeline->append(SkRasterPipelineOp::store_src, storage->fRes0);
 
    if (mRec.rasterPipelineCoordsAreSeeded()) {
        rec.fPipeline->append(SkRasterPipelineOp::load_src_rg, storage->fCoords);
    }
    if (!as_SB(s1)->appendStages(rec, mRec)) {
        return nullptr;
    }
    return storage->fRes0;
}

SkRegisterBlendShaderFlattenable()

void SkRegisterBlendShaderFlattenable

(

)

Definition at line 139 of file SkBlendShader.cpp.

                                        {
    SK_REGISTER_FLATTENABLE(SkBlendShader);
    // Previous name
    SkFlattenable::Register("SkShader_Blend", SkBlendShader::CreateProc);
}