C++ GrTexture::height方法代码示例

static void check_texture(skiatest::Reporter* reporter,
                          GrResourceProvider* provider,
                          GrTextureProxy* texProxy,
                          SkBackingFit fit) {
    GrSurfaceProxy::UniqueID idBefore = texProxy->uniqueID();

    bool preinstantiated = texProxy->isInstantiated();
    REPORTER_ASSERT(reporter, texProxy->instantiate(provider));
    GrTexture* tex = texProxy->peekTexture();

    REPORTER_ASSERT(reporter, texProxy->uniqueID() == idBefore);
    // Deferred resources should always have a different ID from their instantiated texture
    if (preinstantiated) {
        REPORTER_ASSERT(reporter, texProxy->uniqueID().asUInt() == tex->uniqueID().asUInt());
    } else {
        REPORTER_ASSERT(reporter, texProxy->uniqueID().asUInt() != tex->uniqueID().asUInt());
    }

    if (SkBackingFit::kExact == fit) {
        REPORTER_ASSERT(reporter, tex->width() == texProxy->width());
        REPORTER_ASSERT(reporter, tex->height() == texProxy->height());
    } else {
        REPORTER_ASSERT(reporter, tex->width() >= texProxy->width());
        REPORTER_ASSERT(reporter, tex->height() >= texProxy->height());
    }
    REPORTER_ASSERT(reporter, tex->config() == texProxy->config());
}

GrFragmentProcessor* GrMagnifierEffect::TestCreate(SkRandom* random,
                                                   GrContext* context,
                                                   const GrDrawTargetCaps&,
                                                   GrTexture** textures) {
    GrTexture* texture = textures[0];
    const int kMaxWidth = 200;
    const int kMaxHeight = 200;
    const int kMaxInset = 20;
    uint32_t width = random->nextULessThan(kMaxWidth);
    uint32_t height = random->nextULessThan(kMaxHeight);
    uint32_t x = random->nextULessThan(kMaxWidth - width);
    uint32_t y = random->nextULessThan(kMaxHeight - height);
    uint32_t inset = random->nextULessThan(kMaxInset);

    GrFragmentProcessor* effect = GrMagnifierEffect::Create(
        texture,
        (float) width / texture->width(),
        (float) height / texture->height(),
        texture->width() / (float) x,
        texture->height() / (float) y,
        (float) inset / texture->width(),
        (float) inset / texture->height());
    SkASSERT(effect);
    return effect;
}

    void onEmitCode(EmitArgs& args, GrGPArgs* gpArgs) override {
        const GrBitmapTextGeoProc& cte = args.fGP.cast<GrBitmapTextGeoProc>();

        GrGLSLGPBuilder* pb = args.fPB;
        GrGLSLVertexBuilder* vsBuilder = pb->getVertexShaderBuilder();

        // emit attributes
        vsBuilder->emitAttributes(cte);

        // compute numbers to be hardcoded to convert texture coordinates from int to float
        SkASSERT(cte.numTextures() == 1);
        GrTexture* atlas = cte.textureAccess(0).getTexture();
        SkASSERT(atlas && SkIsPow2(atlas->width()) && SkIsPow2(atlas->height()));
        SkScalar recipWidth = 1.0f / atlas->width();
        SkScalar recipHeight = 1.0f / atlas->height();

        GrGLSLVertToFrag v(kVec2f_GrSLType);
        pb->addVarying("TextureCoords", &v);
        vsBuilder->codeAppendf("%s = vec2(%.*f, %.*f) * %s;", v.vsOut(),
                               GR_SIGNIFICANT_POW2_DECIMAL_DIG, recipWidth,
                               GR_SIGNIFICANT_POW2_DECIMAL_DIG, recipHeight,
                               cte.inTextureCoords()->fName);

        // Setup pass through color
        if (!cte.colorIgnored()) {
            if (cte.hasVertexColor()) {
                pb->addPassThroughAttribute(cte.inColor(), args.fOutputColor);
            } else {
                this->setupUniformColor(pb, args.fOutputColor, &fColorUniform);
            }
        }

        // Setup position
        this->setupPosition(pb, gpArgs, cte.inPosition()->fName);

        // emit transforms
        this->emitTransforms(args.fPB, gpArgs->fPositionVar, cte.inPosition()->fName,
                             cte.localMatrix(), args.fTransformsIn, args.fTransformsOut);

        GrGLSLFragmentBuilder* fsBuilder = pb->getFragmentShaderBuilder();
        if (cte.maskFormat() == kARGB_GrMaskFormat) {
            fsBuilder->codeAppendf("%s = ", args.fOutputColor);
            fsBuilder->appendTextureLookupAndModulate(args.fOutputColor,
                                                      args.fSamplers[0],
                                                      v.fsIn(),
                                                      kVec2f_GrSLType);
            fsBuilder->codeAppend(";");
            fsBuilder->codeAppendf("%s = vec4(1);", args.fOutputCoverage);
        } else {
            fsBuilder->codeAppendf("%s = ", args.fOutputCoverage);
            fsBuilder->appendTextureLookup(args.fSamplers[0], v.fsIn(), kVec2f_GrSLType);
            fsBuilder->codeAppend(";");
            if (cte.maskFormat() == kA565_GrMaskFormat) {
                // set alpha to be max of rgb coverage
                fsBuilder->codeAppendf("%s.a = max(max(%s.r, %s.g), %s.b);",
                                       args.fOutputCoverage, args.fOutputCoverage,
                                       args.fOutputCoverage, args.fOutputCoverage);
            }
        }
    }

    void setData(const GrGLSLProgramDataManager& pdman, const GrPrimitiveProcessor& proc,
                 FPCoordTransformIter&& transformIter) override {

        const GrDistanceFieldPathGeoProc& dfpgp = proc.cast<GrDistanceFieldPathGeoProc>();

        if (dfpgp.matrix().hasPerspective() && !fMatrix.cheapEqualTo(dfpgp.matrix())) {
            fMatrix = dfpgp.matrix();
            float matrix[3 * 3];
            GrGLSLGetMatrix<3>(matrix, fMatrix);
            pdman.setMatrix3f(fMatrixUniform, matrix);
        }

        SkASSERT(dfpgp.numTextureSamplers() >= 1);
        GrTexture* atlas = dfpgp.textureSampler(0).peekTexture();
        SkASSERT(atlas && SkIsPow2(atlas->width()) && SkIsPow2(atlas->height()));

        if (fAtlasSize.fWidth != atlas->width() || fAtlasSize.fHeight != atlas->height()) {
            fAtlasSize.set(atlas->width(), atlas->height());
            pdman.set2f(fAtlasSizeInvUniform, 1.0f / atlas->width(), 1.0f / atlas->height());
        }

        if (dfpgp.matrix().hasPerspective()) {
            this->setTransformDataHelper(SkMatrix::I(), pdman, &transformIter);
        } else {
            this->setTransformDataHelper(dfpgp.matrix(), pdman, &transformIter);
        }
    }

    virtual void setData(const GrGLProgramDataManager& pdman,
                         const GrPrimitiveProcessor& proc,
                         const GrBatchTracker& bt) override {
        SkASSERT(fTextureSizeUni.isValid());

        GrTexture* texture = proc.texture(0);
        if (texture->width() != fTextureSize.width() || 
            texture->height() != fTextureSize.height()) {
            fTextureSize = SkISize::Make(texture->width(), texture->height());
            pdman.set2f(fTextureSizeUni,
                        SkIntToScalar(fTextureSize.width()),
                        SkIntToScalar(fTextureSize.height()));
        }

        const GrDistanceFieldPathGeoProc& dfpgp = proc.cast<GrDistanceFieldPathGeoProc>();

        if (!dfpgp.viewMatrix().isIdentity() && !fViewMatrix.cheapEqualTo(dfpgp.viewMatrix())) {
            fViewMatrix = dfpgp.viewMatrix();
            GrGLfloat viewMatrix[3 * 3];
            GrGLGetMatrix<3>(viewMatrix, fViewMatrix);
            pdman.setMatrix3f(fViewMatrixUniform, viewMatrix);
        }

        if (dfpgp.color() != fColor) {
            GrGLfloat c[4];
            GrColorToRGBAFloat(dfpgp.color(), c);
            pdman.set4fv(fColorUniform, 1, c);
            fColor = dfpgp.color();
        }
    }

bool GrDrawTarget::onCopySurface(GrSurface* dst,
                                 GrSurface* src,
                                 const SkIRect& srcRect,
                                 const SkIPoint& dstPoint) {
    if (!GrDrawTarget::onCanCopySurface(dst, src, srcRect, dstPoint)) {
        return false;
    }

    GrRenderTarget* rt = dst->asRenderTarget();
    GrTexture* tex = src->asTexture();

    GrDrawTarget::AutoStateRestore asr(this, kReset_ASRInit);
    this->drawState()->setRenderTarget(rt);
    SkMatrix matrix;
    matrix.setTranslate(SkIntToScalar(srcRect.fLeft - dstPoint.fX),
                        SkIntToScalar(srcRect.fTop - dstPoint.fY));
    matrix.postIDiv(tex->width(), tex->height());
    this->drawState()->addColorTextureEffect(tex, matrix);
    SkIRect dstRect = SkIRect::MakeXYWH(dstPoint.fX,
                                        dstPoint.fY,
                                        srcRect.width(),
                                        srcRect.height());
    this->drawSimpleRect(dstRect);
    return true;
}

    void writePathVertices(GrDrawBatch::Target* target,
                           GrBatchAtlas* atlas,
                           intptr_t offset,
                           GrColor color,
                           size_t vertexStride,
                           const SkMatrix& viewMatrix,
                           const ShapeData* shapeData) const {
        GrTexture* texture = atlas->getTexture();

        SkScalar dx = shapeData->fBounds.fLeft;
        SkScalar dy = shapeData->fBounds.fTop;
        SkScalar width = shapeData->fBounds.width();
        SkScalar height = shapeData->fBounds.height();

        SkScalar invScale = 1.0f / shapeData->fScale;
        dx *= invScale;
        dy *= invScale;
        width *= invScale;
        height *= invScale;

        SkPoint* positions = reinterpret_cast<SkPoint*>(offset);

        // vertex positions
        // TODO make the vertex attributes a struct
        SkRect r = SkRect::MakeXYWH(dx, dy, width, height);
        positions->setRectFan(r.left(), r.top(), r.right(), r.bottom(), vertexStride);

        // colors
        for (int i = 0; i < kVerticesPerQuad; i++) {
            GrColor* colorPtr = (GrColor*)(offset + sizeof(SkPoint) + i * vertexStride);
            *colorPtr = color;
        }

        const SkScalar tx = SkIntToScalar(shapeData->fAtlasLocation.fX);
        const SkScalar ty = SkIntToScalar(shapeData->fAtlasLocation.fY);

        // vertex texture coords
        SkPoint* textureCoords = (SkPoint*)(offset + sizeof(SkPoint) + sizeof(GrColor));
        textureCoords->setRectFan(tx / texture->width(),
                                  ty / texture->height(),
                                  (tx + shapeData->fBounds.width()) / texture->width(),
                                  (ty + shapeData->fBounds.height())  / texture->height(),
                                  vertexStride);
    }

////////////////////////////////////////////////////////////////////////////////
// return true on success; false on failure
bool GrSoftwarePathRenderer::onDrawPath(const SkPath& path,
                                        GrPathFill fill,
                                        const GrVec* translate,
                                        GrDrawTarget* target,
                                        GrDrawState::StageMask stageMask,
                                        bool antiAlias) {

    if (NULL == fContext) {
        return false;
    }

    GrAutoScratchTexture ast;
    GrIRect pathBounds, clipBounds;
    if (!get_path_and_clip_bounds(target, path, translate,
                                  &pathBounds, &clipBounds)) {
        return true;    // path is empty so there is nothing to do
    }
    if (sw_draw_path_to_mask_texture(path, pathBounds,
                                     fill, fContext,
                                     translate, &ast, antiAlias)) {
        GrTexture* texture = ast.texture();
        GrAssert(NULL != texture);
        GrDrawTarget::AutoDeviceCoordDraw adcd(target, stageMask);
        enum {
            // the SW path renderer shares this stage with glyph
            // rendering (kGlyphMaskStage in GrBatchedTextContext)
            kPathMaskStage = GrPaint::kTotalStages,
        };
        GrAssert(NULL == target->drawState()->getTexture(kPathMaskStage));
        target->drawState()->setTexture(kPathMaskStage, texture);
        target->drawState()->sampler(kPathMaskStage)->reset();
        GrScalar w = GrIntToScalar(pathBounds.width());
        GrScalar h = GrIntToScalar(pathBounds.height());
        GrRect maskRect = GrRect::MakeWH(w / texture->width(),
                                         h / texture->height());
        const GrRect* srcRects[GrDrawState::kNumStages] = {NULL};
        srcRects[kPathMaskStage] = &maskRect;
        stageMask |= 1 << kPathMaskStage;
        GrRect dstRect = GrRect::MakeLTRB(
                              SK_Scalar1* pathBounds.fLeft,
                              SK_Scalar1* pathBounds.fTop,
                              SK_Scalar1* pathBounds.fRight,
                              SK_Scalar1* pathBounds.fBottom);
        target->drawRect(dstRect, NULL, stageMask, srcRects, NULL);
        target->drawState()->setTexture(kPathMaskStage, NULL);
        if (GrIsFillInverted(fill)) {
            draw_around_inv_path(target, stageMask,
                                 clipBounds, pathBounds);
        }
        return true;
    }

    return false;
}

void GrGLDisplacementMapEffect::setData(const GrGLProgramDataManager& pdman,
                                        const GrProcessor& proc) {
    const GrDisplacementMapEffect& displacementMap = proc.cast<GrDisplacementMapEffect>();
    GrTexture* colorTex = displacementMap.texture(1);
    SkScalar scaleX = SkScalarDiv(displacementMap.scale().fX, SkIntToScalar(colorTex->width()));
    SkScalar scaleY = SkScalarDiv(displacementMap.scale().fY, SkIntToScalar(colorTex->height()));
    pdman.set2f(fScaleUni, SkScalarToFloat(scaleX),
                colorTex->origin() == kTopLeft_GrSurfaceOrigin ?
                SkScalarToFloat(scaleY) : SkScalarToFloat(-scaleY));
    fGLDomain.setData(pdman, displacementMap.domain(), colorTex->origin());
}

void GrGLBicubicEffect::onSetData(const GrGLSLProgramDataManager& pdman,
                                  const GrFragmentProcessor& processor) {
    const GrBicubicEffect& bicubicEffect = processor.cast<GrBicubicEffect>();
    GrSurfaceProxy* proxy = processor.textureSampler(0).proxy();
    GrTexture* texture = proxy->peekTexture();

    float imageIncrement[2];
    imageIncrement[0] = 1.0f / texture->width();
    imageIncrement[1] = 1.0f / texture->height();
    pdman.set2fv(fImageIncrementUni, 1, imageIncrement);
    fDomain.setData(pdman, bicubicEffect.domain(), proxy);
}

const GrFragmentProcessor* GrMagnifierEffect::TestCreate(GrProcessorTestData* d) {
    GrTexture* texture = d->fTextures[0];
    const int kMaxWidth = 200;
    const int kMaxHeight = 200;
    const int kMaxInset = 20;
    uint32_t width = d->fRandom->nextULessThan(kMaxWidth);
    uint32_t height = d->fRandom->nextULessThan(kMaxHeight);
    uint32_t x = d->fRandom->nextULessThan(kMaxWidth - width);
    uint32_t y = d->fRandom->nextULessThan(kMaxHeight - height);
    uint32_t inset = d->fRandom->nextULessThan(kMaxInset);

    GrFragmentProcessor* effect = GrMagnifierEffect::Create(
        texture,
        SkRect::MakeWH(SkIntToScalar(kMaxWidth), SkIntToScalar(kMaxHeight)),
        (float) width / texture->width(),
        (float) height / texture->height(),
        texture->width() / (float) x,
        texture->height() / (float) y,
        (float) inset / texture->width(),
        (float) inset / texture->height());
    SkASSERT(effect);
    return effect;
}

void GrGLBicubicEffect::onSetData(const GrGLSLProgramDataManager& pdman,
                                  const GrFragmentProcessor& processor) {
    const GrBicubicEffect& bicubicEffect = processor.cast<GrBicubicEffect>();
    GrTexture* texture = processor.textureSampler(0).peekTexture();

    float imageIncrement[2];
    imageIncrement[0] = 1.0f / texture->width();
    imageIncrement[1] = 1.0f / texture->height();
    pdman.set2fv(fImageIncrementUni, 1, imageIncrement);
    fDomain.setData(pdman, bicubicEffect.domain(), texture);
    if (SkToBool(bicubicEffect.colorSpaceXform())) {
        fColorSpaceHelper.setData(pdman, bicubicEffect.colorSpaceXform());
    }
}

    void setData(const GrGLSLProgramDataManager& pdman, const GrPrimitiveProcessor& proc,
                 FPCoordTransformIter&& transformIter) override {
        SkASSERT(fTextureSizeUni.isValid());

        GrTexture* texture = proc.texture(0);
        if (texture->width() != fTextureSize.width() ||
            texture->height() != fTextureSize.height()) {
            fTextureSize = SkISize::Make(texture->width(), texture->height());
            pdman.set2f(fTextureSizeUni,
                        SkIntToScalar(fTextureSize.width()),
                        SkIntToScalar(fTextureSize.height()));
        }

        const GrDistanceFieldPathGeoProc& dfpgp = proc.cast<GrDistanceFieldPathGeoProc>();

        if (!dfpgp.viewMatrix().isIdentity() && !fViewMatrix.cheapEqualTo(dfpgp.viewMatrix())) {
            fViewMatrix = dfpgp.viewMatrix();
            float viewMatrix[3 * 3];
            GrGLSLGetMatrix<3>(viewMatrix, fViewMatrix);
            pdman.setMatrix3f(fViewMatrixUniform, viewMatrix);
        }
        this->setTransformDataHelper(SkMatrix::I(), pdman, &transformIter);
    }

    virtual void setData(const GrGLProgramDataManager& pdman,
                         const GrPrimitiveProcessor& proc,
                         const GrBatchTracker& bt) override {
        SkASSERT(fTextureSizeUni.isValid());

        GrTexture* texture = proc.texture(0);
        if (texture->width() != fTextureSize.width() || 
            texture->height() != fTextureSize.height()) {
            fTextureSize = SkISize::Make(texture->width(), texture->height());
            pdman.set2f(fTextureSizeUni,
                        SkIntToScalar(fTextureSize.width()),
                        SkIntToScalar(fTextureSize.height()));
        }

        this->setUniformViewMatrix(pdman, proc.viewMatrix());

        const DistanceFieldNoGammaBatchTracker& local = bt.cast<DistanceFieldNoGammaBatchTracker>();
        if (kUniform_GrGPInput == local.fInputColorType && local.fColor != fColor) {
            GrGLfloat c[4];
            GrColorToRGBAFloat(local.fColor, c);
            pdman.set4fv(fColorUniform, 1, c);
            fColor = local.fColor;
        }
    }

    static inline void GenKey(const GrGeometryProcessor& gp,
                              const GrGLSLCaps&,
                              GrProcessorKeyBuilder* b) {
        const GrDistanceFieldA8TextGeoProc& dfTexEffect = gp.cast<GrDistanceFieldA8TextGeoProc>();
        uint32_t key = dfTexEffect.getFlags();
        key |= dfTexEffect.colorIgnored() << 16;
        key |= ComputePosKey(dfTexEffect.viewMatrix()) << 25;
        b->add32(key);

        // Currently we hardcode numbers to convert atlas coordinates to normalized floating point
        SkASSERT(gp.numTextures() == 1);
        GrTexture* atlas = gp.textureAccess(0).getTexture();
        SkASSERT(atlas);
        b->add32(atlas->width());
        b->add32(atlas->height());
    }