Пример #1
0
GrDrawVerticesOp::GrDrawVerticesOp(const Helper::MakeArgs& helperArgs, GrColor color,
                                   sk_sp<SkVertices> vertices, GrPrimitiveType primitiveType,
                                   GrAAType aaType, bool gammaCorrect,
                                   sk_sp<GrColorSpaceXform> colorSpaceXform,
                                   const SkMatrix& viewMatrix)
        : INHERITED(ClassID())
        , fHelper(helperArgs, aaType)
        , fPrimitiveType(primitiveType)
        , fColorSpaceXform(std::move(colorSpaceXform)) {
    SkASSERT(vertices);

    fVertexCount = vertices->vertexCount();
    fIndexCount = vertices->indexCount();
    fColorArrayType = vertices->hasColors() ? ColorArrayType::kSkColor
                                            : ColorArrayType::kPremulGrColor;
    // GrColor is linearized (and gamut converted) during paint conversion, but SkColors need to be
    // handled in the shader
    fLinearizeColors = gammaCorrect && vertices->hasColors();

    Mesh& mesh = fMeshes.push_back();
    mesh.fColor = color;
    mesh.fViewMatrix = viewMatrix;
    mesh.fVertices = std::move(vertices);
    mesh.fIgnoreTexCoords = false;
    mesh.fIgnoreColors = false;

    fFlags = 0;
    if (mesh.hasPerVertexColors()) {
        fFlags |= kRequiresPerVertexColors_Flag;
    }
    if (mesh.hasExplicitLocalCoords()) {
        fFlags |= kAnyMeshHasExplicitLocalCoords;
    }

    IsZeroArea zeroArea;
    if (GrIsPrimTypeLines(primitiveType) || GrPrimitiveType::kPoints == primitiveType) {
        zeroArea = IsZeroArea::kYes;
    } else {
        zeroArea = IsZeroArea::kNo;
    }
    this->setTransformedBounds(mesh.fVertices->bounds(), viewMatrix, HasAABloat::kNo, zeroArea);
}
Пример #2
0
GrDrawVerticesOp::GrDrawVerticesOp(const Helper::MakeArgs& helperArgs, GrColor color,
                                   sk_sp<SkVertices> vertices, const SkVertices::Bone bones[],
                                   int boneCount, GrPrimitiveType primitiveType, GrAAType aaType,
                                   sk_sp<GrColorSpaceXform> colorSpaceXform,
                                   const SkMatrix& viewMatrix)
        : INHERITED(ClassID())
        , fHelper(helperArgs, aaType)
        , fPrimitiveType(primitiveType)
        , fColorSpaceXform(std::move(colorSpaceXform)) {
    SkASSERT(vertices);

    fVertexCount = vertices->vertexCount();
    fIndexCount = vertices->indexCount();
    fColorArrayType = vertices->hasColors() ? ColorArrayType::kSkColor
                                            : ColorArrayType::kPremulGrColor;

    Mesh& mesh = fMeshes.push_back();
    mesh.fColor = color;
    mesh.fViewMatrix = viewMatrix;
    mesh.fVertices = std::move(vertices);
    mesh.fIgnoreTexCoords = false;
    mesh.fIgnoreColors = false;
    mesh.fIgnoreBones = false;

    if (mesh.fVertices->hasBones() && bones) {
        // Perform the transformations on the CPU instead of the GPU.
        mesh.fVertices = mesh.fVertices->applyBones(bones, boneCount);
    } else {
        if (bones && boneCount > 1) {
            // NOTE: This should never be used. All bone transforms are being done on the CPU
            // instead of the GPU.

            // Copy the bone data.
            fBones.assign(bones, bones + boneCount);
        }
    }

    fFlags = 0;
    if (mesh.hasPerVertexColors()) {
        fFlags |= kRequiresPerVertexColors_Flag;
    }
    if (mesh.hasExplicitLocalCoords()) {
        fFlags |= kAnyMeshHasExplicitLocalCoords_Flag;
    }
    if (mesh.hasBones()) {
        fFlags |= kHasBones_Flag;
    }

    // Special case for meshes with a world transform but no bone weights.
    // These will be considered normal vertices draws without bones.
    if (!mesh.fVertices->hasBones() && boneCount == 1) {
        SkMatrix worldTransform;
        worldTransform.setAffine(bones[0].values);
        mesh.fViewMatrix.preConcat(worldTransform);
    }

    IsZeroArea zeroArea;
    if (GrIsPrimTypeLines(primitiveType) || GrPrimitiveType::kPoints == primitiveType) {
        zeroArea = IsZeroArea::kYes;
    } else {
        zeroArea = IsZeroArea::kNo;
    }

    if (this->hasBones()) {
        // We don't know the bounds if there are deformations involved, so attempt to calculate
        // the maximum possible.
        SkRect bounds = SkRect::MakeEmpty();
        const SkRect originalBounds = bones[0].mapRect(mesh.fVertices->bounds());
        for (int i = 1; i < boneCount; i++) {
            const SkVertices::Bone& matrix = bones[i];
            bounds.join(matrix.mapRect(originalBounds));
        }

        this->setTransformedBounds(bounds,
                                   mesh.fViewMatrix,
                                   HasAABloat::kNo,
                                   zeroArea);
    } else {
        this->setTransformedBounds(mesh.fVertices->bounds(),
                                   mesh.fViewMatrix,
                                   HasAABloat::kNo,
                                   zeroArea);
    }
}