Exemplos de BlendFormula::canTweakAlphaForCoverage em C++ (Cpp)

Exemplo n.º 1

Arquivo: GrPorterDuffXferProcessor.cpp Projeto: mariospr/chromium-browser

GrXferProcessor::OptFlags
PorterDuffXferProcessor::onGetOptimizations(const GrProcOptInfo& colorPOI,
                                            const GrProcOptInfo& coveragePOI,
                                            bool doesStencilWrite,
                                            GrColor* overrideColor,
                                            const GrCaps& caps) {
    GrXferProcessor::OptFlags optFlags = GrXferProcessor::kNone_OptFlags;
    if (!fBlendFormula.modifiesDst()) {
        if (!doesStencilWrite) {
            optFlags |= GrXferProcessor::kSkipDraw_OptFlag;
        }
        optFlags |= (GrXferProcessor::kIgnoreColor_OptFlag |
                     GrXferProcessor::kIgnoreCoverage_OptFlag |
                     GrXferProcessor::kCanTweakAlphaForCoverage_OptFlag);
    } else {
        if (!fBlendFormula.usesInputColor()) {
            optFlags |= GrXferProcessor::kIgnoreColor_OptFlag;
        }
        if (coveragePOI.isSolidWhite()) {
            optFlags |= GrXferProcessor::kIgnoreCoverage_OptFlag;
        }
        if (colorPOI.allStagesMultiplyInput() && fBlendFormula.canTweakAlphaForCoverage()) {
            optFlags |= GrXferProcessor::kCanTweakAlphaForCoverage_OptFlag;
        }
    }
    return optFlags;
}