Exemplo n.º 1
0
////////////////////////////////////////////////////////////////////////////////
// return true on success; false on failure
bool GrSoftwarePathRenderer::onDrawPath(const DrawPathArgs& args) {
    if (NULL == fContext) {
        return false;
    }

    SkIRect devPathBounds, devClipBounds;
    if (!get_path_and_clip_bounds(args.fTarget, args.fPipelineBuilder, *args.fPath,
                                  *args.fViewMatrix, &devPathBounds, &devClipBounds)) {
        if (args.fPath->isInverseFillType()) {
            draw_around_inv_path(args.fTarget, args.fPipelineBuilder, args.fColor,
                                 *args.fViewMatrix, devClipBounds, devPathBounds);
        }
        return true;
    }

    SkAutoTUnref<GrTexture> texture(
            GrSWMaskHelper::DrawPathMaskToTexture(fContext, *args.fPath, *args.fStroke,
                                                  devPathBounds,
                                                  args.fAntiAlias, args.fViewMatrix));
    if (NULL == texture) {
        return false;
    }

    GrSWMaskHelper::DrawToTargetWithPathMask(texture, args.fTarget, args.fPipelineBuilder,
                                             args.fColor, *args.fViewMatrix, devPathBounds);

    if (args.fPath->isInverseFillType()) {
        draw_around_inv_path(args.fTarget, args.fPipelineBuilder, args.fColor, *args.fViewMatrix,
                             devClipBounds, devPathBounds);
    }

    return true;
}
Exemplo n.º 2
0
////////////////////////////////////////////////////////////////////////////////
// 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;
}
Exemplo n.º 3
0
////////////////////////////////////////////////////////////////////////////////
// return true on success; false on failure
bool GrSoftwarePathRenderer::onDrawPath(GrDrawTarget* target,
                                        GrPipelineBuilder* pipelineBuilder,
                                        GrColor color,
                                        const SkMatrix& viewMatrix,
                                        const SkPath& path,
                                        const GrStrokeInfo& stroke,
                                        bool antiAlias) {
    if (NULL == fContext) {
        return false;
    }

    SkIRect devPathBounds, devClipBounds;
    if (!get_path_and_clip_bounds(target, pipelineBuilder, path, viewMatrix, &devPathBounds,
                                  &devClipBounds)) {
        if (path.isInverseFillType()) {
            draw_around_inv_path(target, pipelineBuilder, color, viewMatrix, devClipBounds,
                                 devPathBounds);
        }
        return true;
    }

    SkAutoTUnref<GrTexture> texture(
            GrSWMaskHelper::DrawPathMaskToTexture(fContext, path, stroke,
                                                  devPathBounds,
                                                  antiAlias, &viewMatrix));
    if (NULL == texture) {
        return false;
    }

    GrPipelineBuilder copy = *pipelineBuilder;
    GrSWMaskHelper::DrawToTargetWithPathMask(texture, target, &copy, color, viewMatrix,
                                             devPathBounds);

    if (path.isInverseFillType()) {
        draw_around_inv_path(target, pipelineBuilder, color, viewMatrix, devClipBounds,
                             devPathBounds);
    }

    return true;
}
////////////////////////////////////////////////////////////////////////////////
// return true on success; false on failure
bool GrSoftwarePathRenderer::onDrawPath(const SkPath& path,
                                        const SkStrokeRec& stroke,
                                        GrDrawTarget* target,
                                        bool antiAlias) {

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

    GrDrawState* drawState = target->drawState();

    SkMatrix vm = drawState->getViewMatrix();

    GrIRect devPathBounds, devClipBounds;
    if (!get_path_and_clip_bounds(target, path, vm,
                                  &devPathBounds, &devClipBounds)) {
        if (path.isInverseFillType()) {
            draw_around_inv_path(target, devClipBounds, devPathBounds);
        }
        return true;
    }

    SkAutoTUnref<GrTexture> texture(
            GrSWMaskHelper::DrawPathMaskToTexture(fContext, path, stroke,
                                                  devPathBounds,
                                                  antiAlias, &vm));
    if (NULL == texture) {
        return false;
    }

    GrSWMaskHelper::DrawToTargetWithPathMask(texture, target, devPathBounds);

    if (path.isInverseFillType()) {
        draw_around_inv_path(target, devClipBounds, devPathBounds);
    }

    return true;
}