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C++ GrDrawState::getColor方法代码示例

本文整理汇总了C++中GrDrawState::getColor方法的典型用法代码示例。如果您正苦于以下问题:C++ GrDrawState::getColor方法的具体用法?C++ GrDrawState::getColor怎么用?C++ GrDrawState::getColor使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在GrDrawState的用法示例。


在下文中一共展示了GrDrawState::getColor方法的6个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: onDrawRect

void GrInOrderDrawBuffer::onDrawRect(const SkRect& rect,
                                     const SkRect* localRect,
                                     const SkMatrix* localMatrix) {
    GrDrawState* drawState = this->drawState();

    GrColor color = drawState->getColor();

    set_vertex_attributes(drawState, SkToBool(localRect),  color);

    AutoReleaseGeometry geo(this, 4, 0);
    if (!geo.succeeded()) {
        SkDebugf("Failed to get space for vertices!\n");
        return;
    }

    // Go to device coords to allow batching across matrix changes
    SkMatrix matrix = drawState->getViewMatrix();

    // When the caller has provided an explicit source rect for a stage then we don't want to
    // modify that stage's matrix. Otherwise if the effect is generating its source rect from
    // the vertex positions then we have to account for the view matrix change.
    GrDrawState::AutoViewMatrixRestore avmr;
    if (!avmr.setIdentity(drawState)) {
        return;
    }

    size_t vstride = drawState->getVertexStride();

    geo.positions()->setRectFan(rect.fLeft, rect.fTop, rect.fRight, rect.fBottom, vstride);
    matrix.mapPointsWithStride(geo.positions(), vstride, 4);

    SkRect devBounds;
    // since we already computed the dev verts, set the bounds hint. This will help us avoid
    // unnecessary clipping in our onDraw().
    get_vertex_bounds(geo.vertices(), vstride, 4, &devBounds);

    if (localRect) {
        static const int kLocalOffset = sizeof(SkPoint) + sizeof(GrColor);
        SkPoint* coords = GrTCast<SkPoint*>(GrTCast<intptr_t>(geo.vertices()) + kLocalOffset);
        coords->setRectFan(localRect->fLeft, localRect->fTop,
                           localRect->fRight, localRect->fBottom,
                           vstride);
        if (localMatrix) {
            localMatrix->mapPointsWithStride(coords, vstride, 4);
        }
    }

    static const int kColorOffset = sizeof(SkPoint);
    GrColor* vertColor = GrTCast<GrColor*>(GrTCast<intptr_t>(geo.vertices()) + kColorOffset);
    for (int i = 0; i < 4; ++i) {
        *vertColor = color;
        vertColor = (GrColor*) ((intptr_t) vertColor + vstride);
    }

    this->setIndexSourceToBuffer(this->getContext()->getQuadIndexBuffer());
    this->drawIndexedInstances(kTriangles_GrPrimitiveType, 1, 4, 6, &devBounds);

    // to ensure that stashing the drawState ptr is valid
    SkASSERT(this->drawState() == drawState);
}
开发者ID:RobinWuDev,项目名称:Qt,代码行数:60,代码来源:GrInOrderDrawBuffer.cpp

示例2: copyEffectiveColorStages

void GrOptDrawState::copyEffectiveColorStages(const GrDrawState& ds) {
    int firstColorStage = 0;

    // Set up color and flags for ConstantColorComponent checks
    GrColor color;
    uint32_t validComponentFlags;
    if (!this->hasColorVertexAttribute()) {
        color = ds.getColor();
        validComponentFlags = kRGBA_GrColorComponentFlags;
    } else {
        if (ds.vertexColorsAreOpaque()) {
            color = 0xFF << GrColor_SHIFT_A;
            validComponentFlags = kA_GrColorComponentFlag;
        } else {
            validComponentFlags = 0;
            color = 0; // not strictly necessary but we get false alarms from tools about uninit.
        }
    }

    for (int i = 0; i < ds.numColorStages(); ++i) {
        const GrFragmentProcessor* fp = ds.getColorStage(i).getFragmentProcessor();
        if (!fp->willUseInputColor()) {
            firstColorStage = i;
            fInputColorIsUsed = false;
        }
        fp->getConstantColorComponents(&color, &validComponentFlags);
        if (kRGBA_GrColorComponentFlags == validComponentFlags) {
            firstColorStage = i + 1;
            fColor = color;
            fInputColorIsUsed = true;
            this->removeFixedFunctionVertexAttribs(0x1 << kColor_GrVertexAttribBinding);
        }
    }
    if (firstColorStage < ds.numColorStages()) {
        fColorStages.reset(&ds.getColorStage(firstColorStage),
                           ds.numColorStages() - firstColorStage);
    } else {
        fColorStages.reset();
    }
}
开发者ID:435420057,项目名称:soui,代码行数:40,代码来源:GrOptDrawState.cpp

示例3: INHERITED

GrOptDrawState::GrOptDrawState(const GrDrawState& drawState,
                               BlendOptFlags blendOptFlags,
                               GrBlendCoeff optSrcCoeff,
                               GrBlendCoeff optDstCoeff,
                               const GrDrawTargetCaps& caps) : INHERITED(drawState) {
    fColor = drawState.getColor();
    fCoverage = drawState.getCoverage();
    fViewMatrix = drawState.getViewMatrix();
    fBlendConstant = drawState.getBlendConstant();
    fFlagBits = drawState.getFlagBits();
    fVAPtr = drawState.getVertexAttribs();
    fVACount = drawState.getVertexAttribCount();
    fVAStride = drawState.getVertexStride();
    fStencilSettings = drawState.getStencil();
    fDrawFace = drawState.getDrawFace();
    fBlendOptFlags = blendOptFlags;
    fSrcBlend = optSrcCoeff;
    fDstBlend = optDstCoeff;

    memcpy(fFixedFunctionVertexAttribIndices,
            drawState.getFixedFunctionVertexAttribIndices(),
            sizeof(fFixedFunctionVertexAttribIndices));


    fInputColorIsUsed = true;
    fInputCoverageIsUsed = true;

    if (drawState.hasGeometryProcessor()) {
        fGeometryProcessor.reset(SkNEW_ARGS(GrGeometryStage, (*drawState.getGeometryProcessor())));
    } else {
        fGeometryProcessor.reset(NULL);
    }

    this->copyEffectiveColorStages(drawState);
    this->copyEffectiveCoverageStages(drawState);
    this->adjustFromBlendOpts();
    this->getStageStats();
    this->setOutputStateInfo(caps);
};
开发者ID:435420057,项目名称:soui,代码行数:39,代码来源:GrOptDrawState.cpp

示例4: Build

void GrGLProgramDesc::Build(const GrDrawState& drawState,
                            bool isPoints,
                            GrDrawState::BlendOptFlags blendOpts,
                            GrBlendCoeff srcCoeff,
                            GrBlendCoeff dstCoeff,
                            const GrGpuGL* gpu,
                            const GrDeviceCoordTexture* dstCopy,
                            SkTArray<const GrEffectStage*, true>* colorStages,
                            SkTArray<const GrEffectStage*, true>* coverageStages,
                            GrGLProgramDesc* desc) {
    colorStages->reset();
    coverageStages->reset();

    // This should already have been caught
    SkASSERT(!(GrDrawState::kSkipDraw_BlendOptFlag & blendOpts));

    bool skipCoverage = SkToBool(blendOpts & GrDrawState::kEmitTransBlack_BlendOptFlag);

    bool skipColor = SkToBool(blendOpts & (GrDrawState::kEmitTransBlack_BlendOptFlag |
                                           GrDrawState::kEmitCoverage_BlendOptFlag));
    int firstEffectiveColorStage = 0;
    bool inputColorIsUsed = true;
    if (!skipColor) {
        firstEffectiveColorStage = drawState.numColorStages();
        while (firstEffectiveColorStage > 0 && inputColorIsUsed) {
            --firstEffectiveColorStage;
            const GrEffect* effect = drawState.getColorStage(firstEffectiveColorStage).getEffect()->get();
            inputColorIsUsed = effect->willUseInputColor();
        }
    }

    int firstEffectiveCoverageStage = 0;
    bool inputCoverageIsUsed = true;
    if (!skipCoverage) {
        firstEffectiveCoverageStage = drawState.numCoverageStages();
        while (firstEffectiveCoverageStage > 0 && inputCoverageIsUsed) {
            --firstEffectiveCoverageStage;
            const GrEffect* effect = drawState.getCoverageStage(firstEffectiveCoverageStage).getEffect()->get();
            inputCoverageIsUsed = effect->willUseInputColor();
        }
    }

    // The descriptor is used as a cache key. Thus when a field of the
    // descriptor will not affect program generation (because of the attribute
    // bindings in use or other descriptor field settings) it should be set
    // to a canonical value to avoid duplicate programs with different keys.

    bool requiresColorAttrib = !skipColor && drawState.hasColorVertexAttribute();
    bool requiresCoverageAttrib = !skipCoverage && drawState.hasCoverageVertexAttribute();
    // we only need the local coords if we're actually going to generate effect code
    bool requiresLocalCoordAttrib = !(skipCoverage  && skipColor) &&
                                    drawState.hasLocalCoordAttribute();

    bool colorIsTransBlack = SkToBool(blendOpts & GrDrawState::kEmitTransBlack_BlendOptFlag);
    bool colorIsSolidWhite = (blendOpts & GrDrawState::kEmitCoverage_BlendOptFlag) ||
                             (!requiresColorAttrib && 0xffffffff == drawState.getColor()) ||
                             (!inputColorIsUsed);

    int numEffects = (skipColor ? 0 : (drawState.numColorStages() - firstEffectiveColorStage)) +
                     (skipCoverage ? 0 : (drawState.numCoverageStages() - firstEffectiveCoverageStage));

    size_t newKeyLength = KeyLength(numEffects);
    bool allocChanged;
    desc->fKey.reset(newKeyLength, SkAutoMalloc::kAlloc_OnShrink, &allocChanged);
    if (allocChanged || !desc->fInitialized) {
        // make sure any padding in the header is zero if we we haven't used this allocation before.
        memset(desc->header(), 0, kHeaderSize);
    }
    // write the key length
    *desc->atOffset<uint32_t, kLengthOffset>() = SkToU32(newKeyLength);

    KeyHeader* header = desc->header();
    EffectKey* effectKeys = desc->effectKeys();

    int currEffectKey = 0;
    bool readsDst = false;
    bool readFragPosition = false;
    bool hasVertexCode = false;
    if (!skipColor) {
        for (int s = firstEffectiveColorStage; s < drawState.numColorStages(); ++s) {
            effectKeys[currEffectKey++] =
                get_key_and_update_stats(drawState.getColorStage(s), gpu->glCaps(),
                                         requiresLocalCoordAttrib, &readsDst, &readFragPosition,
                                         &hasVertexCode);
        }
    }
    if (!skipCoverage) {
        for (int s = firstEffectiveCoverageStage; s < drawState.numCoverageStages(); ++s) {
            effectKeys[currEffectKey++] =
                get_key_and_update_stats(drawState.getCoverageStage(s), gpu->glCaps(),
                                         requiresLocalCoordAttrib, &readsDst, &readFragPosition,
                                         &hasVertexCode);
        }
    }

    header->fHasVertexCode = hasVertexCode || requiresLocalCoordAttrib;
    header->fEmitsPointSize = isPoints;

    // Currently the experimental GS will only work with triangle prims (and it doesn't do anything
    // other than pass through values from the VS to the FS anyway).
//.........这里部分代码省略.........
开发者ID:CodeSpeaker,项目名称:gecko-dev,代码行数:101,代码来源:GrGLProgramDesc.cpp

示例5: onDrawRect

void GrInOrderDrawBuffer::onDrawRect(const GrRect& rect,
                                     const SkMatrix* matrix,
                                     const GrRect* localRect,
                                     const SkMatrix* localMatrix) {
    GrDrawState::AutoColorRestore acr;

    GrDrawState* drawState = this->drawState();

    GrColor color = drawState->getColor();

    int colorOffset, localOffset;
    set_vertex_attributes(drawState,
                   this->caps()->dualSourceBlendingSupport() || drawState->hasSolidCoverage(),
                   NULL != localRect,
                   &colorOffset, &localOffset);
    if (colorOffset >= 0) {
        // We set the draw state's color to white here. This is done so that any batching performed
        // in our subclass's onDraw() won't get a false from GrDrawState::op== due to a color
        // mismatch. TODO: Once vertex layout is owned by GrDrawState it should skip comparing the
        // constant color in its op== when the kColor layout bit is set and then we can remove
        // this.
        acr.set(drawState, 0xFFFFFFFF);
    }

    AutoReleaseGeometry geo(this, 4, 0);
    if (!geo.succeeded()) {
        GrPrintf("Failed to get space for vertices!\n");
        return;
    }

    // Go to device coords to allow batching across matrix changes
    SkMatrix combinedMatrix;
    if (NULL != matrix) {
        combinedMatrix = *matrix;
    } else {
        combinedMatrix.reset();
    }
    combinedMatrix.postConcat(drawState->getViewMatrix());
    // When the caller has provided an explicit source rect for a stage then we don't want to
    // modify that stage's matrix. Otherwise if the effect is generating its source rect from
    // the vertex positions then we have to account for the view matrix change.
    GrDrawState::AutoViewMatrixRestore avmr;
    if (!avmr.setIdentity(drawState)) {
        return;
    }

    size_t vsize = drawState->getVertexSize();

    geo.positions()->setRectFan(rect.fLeft, rect.fTop, rect.fRight, rect.fBottom, vsize);
    combinedMatrix.mapPointsWithStride(geo.positions(), vsize, 4);

    SkRect devBounds;
    // since we already computed the dev verts, set the bounds hint. This will help us avoid
    // unnecessary clipping in our onDraw().
    get_vertex_bounds(geo.vertices(), vsize, 4, &devBounds);

    if (localOffset >= 0) {
        GrPoint* coords = GrTCast<GrPoint*>(GrTCast<intptr_t>(geo.vertices()) + localOffset);
        coords->setRectFan(localRect->fLeft, localRect->fTop,
                           localRect->fRight, localRect->fBottom,
                            vsize);
        if (NULL != localMatrix) {
            localMatrix->mapPointsWithStride(coords, vsize, 4);
        }
    }

    if (colorOffset >= 0) {
        GrColor* vertColor = GrTCast<GrColor*>(GrTCast<intptr_t>(geo.vertices()) + colorOffset);
        for (int i = 0; i < 4; ++i) {
            *vertColor = color;
            vertColor = (GrColor*) ((intptr_t) vertColor + vsize);
        }
    }

    this->setIndexSourceToBuffer(this->getContext()->getQuadIndexBuffer());
    this->drawIndexedInstances(kTriangles_GrPrimitiveType, 1, 4, 6, &devBounds);

    // to ensure that stashing the drawState ptr is valid
    GrAssert(this->drawState() == drawState);
}
开发者ID:windyuuy,项目名称:opera,代码行数:80,代码来源:GrInOrderDrawBuffer.cpp

示例6: Build

void GrGLProgramDesc::Build(const GrDrawState& drawState,
                            bool isPoints,
                            GrDrawState::BlendOptFlags blendOpts,
                            GrBlendCoeff srcCoeff,
                            GrBlendCoeff dstCoeff,
                            const GrGpuGL* gpu,
                            const GrDeviceCoordTexture* dstCopy,
                            GrGLProgramDesc* desc) {

    // This should already have been caught
    GrAssert(!(GrDrawState::kSkipDraw_BlendOptFlag & blendOpts));

    bool skipCoverage = SkToBool(blendOpts & GrDrawState::kEmitTransBlack_BlendOptFlag);

    bool skipColor = SkToBool(blendOpts & (GrDrawState::kEmitTransBlack_BlendOptFlag |
                                           GrDrawState::kEmitCoverage_BlendOptFlag));

    // The descriptor is used as a cache key. Thus when a field of the
    // descriptor will not affect program generation (because of the attribute
    // bindings in use or other descriptor field settings) it should be set
    // to a canonical value to avoid duplicate programs with different keys.


    desc->fEmitsPointSize = isPoints;

    bool requiresColorAttrib = !skipColor && drawState.hasColorVertexAttribute();
    bool requiresCoverageAttrib = !skipCoverage && drawState.hasCoverageVertexAttribute();
    // we only need the local coords if we're actually going to generate effect code
    bool requiresLocalCoordAttrib = !(skipCoverage  && skipColor) &&
                                    drawState.hasLocalCoordAttribute();

    // fColorInput/fCoverageInput records how colors are specified for the program so we strip the
    // bits from the bindings to avoid false negatives when searching for an existing program in the
    // cache.

    desc->fColorFilterXfermode = skipColor ? SkXfermode::kDst_Mode : drawState.getColorFilterMode();


    bool colorIsTransBlack = SkToBool(blendOpts & GrDrawState::kEmitTransBlack_BlendOptFlag);
    bool colorIsSolidWhite = (blendOpts & GrDrawState::kEmitCoverage_BlendOptFlag) ||
                             (!requiresColorAttrib && 0xffffffff == drawState.getColor());
    if (colorIsTransBlack) {
        desc->fColorInput = kTransBlack_ColorInput;
    } else if (colorIsSolidWhite) {
        desc->fColorInput = kSolidWhite_ColorInput;
    } else if (GR_GL_NO_CONSTANT_ATTRIBUTES && !requiresColorAttrib) {
        desc->fColorInput = kUniform_ColorInput;
    } else {
        desc->fColorInput = kAttribute_ColorInput;
    }

    bool covIsSolidWhite = !requiresCoverageAttrib && 0xffffffff == drawState.getCoverage();

    if (skipCoverage) {
        desc->fCoverageInput = kTransBlack_ColorInput;
    } else if (covIsSolidWhite) {
        desc->fCoverageInput = kSolidWhite_ColorInput;
    } else if (GR_GL_NO_CONSTANT_ATTRIBUTES && !requiresCoverageAttrib) {
        desc->fCoverageInput = kUniform_ColorInput;
    } else {
        desc->fCoverageInput = kAttribute_ColorInput;
    }

    bool readsDst = false;
    int lastEnabledStage = -1;

    for (int s = 0; s < GrDrawState::kNumStages; ++s) {

        bool skip = s < drawState.getFirstCoverageStage() ? skipColor : skipCoverage;
        if (!skip && drawState.isStageEnabled(s)) {
            lastEnabledStage = s;
            const GrEffectRef& effect = *drawState.getStage(s).getEffect();
            const GrBackendEffectFactory& factory = effect->getFactory();
            GrDrawEffect drawEffect(drawState.getStage(s), requiresLocalCoordAttrib);
            desc->fEffectKeys[s] = factory.glEffectKey(drawEffect, gpu->glCaps());
            if (effect->willReadDst()) {
                readsDst = true;
            }
        } else {
            desc->fEffectKeys[s] = 0;
        }
    }

    if (readsDst) {
        GrAssert(NULL != dstCopy);
        desc->fDstRead = GrGLShaderBuilder::KeyForDstRead(dstCopy->texture(), gpu->glCaps());
        GrAssert(0 != desc->fDstRead);
    } else {
        desc->fDstRead = 0;
    }

    desc->fCoverageOutput = kModulate_CoverageOutput;

    // Currently the experimental GS will only work with triangle prims (and it doesn't do anything
    // other than pass through values from the VS to the FS anyway).
#if GR_GL_EXPERIMENTAL_GS
#if 0
    desc->fExperimentalGS = gpu->caps().geometryShaderSupport();
#else
    desc->fExperimentalGS = false;
//.........这里部分代码省略.........
开发者ID:JoKaWare,项目名称:GViews,代码行数:101,代码来源:GrGLProgramDesc.cpp


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