Update HWUI paint filter to understand new location of skia bitmap filter preference

namespace android {

namespace uirenderer {

///////////////////////////////////////////////////////////////////////////////

// Defines

///////////////////////////////////////////////////////////////////////////////

static GLenum getFilter(const SkPaint* paint) {

    if (!paint || paint->getFilterLevel() != SkPaint::kNone_FilterLevel) {

        return GL_LINEAR;

}

void OpenGLRenderer::setupPaintFilter(int clearBits, int setBits) {

    // TODO: don't bother with boolean, it's redundant with clear/set bits

    mDrawModifiers.mHasDrawFilter = true;

    mDrawModifiers.mPaintFilterClearBits = clearBits & SkPaint::kAllFlags;

    mDrawModifiers.mPaintFilterSetBits = setBits & SkPaint::kAllFlags;

}

const SkPaint* OpenGLRenderer::filterPaint(const SkPaint* paint) {

    // TODO: use CompatFlagsDrawFilter here, and combine logic with android/graphics/DrawFilter.cpp

    // to avoid clobbering 0x02 paint flag

    // Equivalent to the Java Paint's FILTER_BITMAP_FLAG.

    static const uint32_t sFilterBitmapFlag = 0x02;

    if (CC_LIKELY(!mDrawModifiers.mHasDrawFilter || !paint)) {

        return paint;

    }

    uint32_t flags = paint->getFlags();

    const uint32_t clearBits = mDrawModifiers.mPaintFilterClearBits;

    const uint32_t setBits = mDrawModifiers.mPaintFilterSetBits;

    const uint32_t flags = (paint->getFlags() & ~clearBits) | setBits;

    mFilteredPaint = *paint;

    mFilteredPaint.setFlags((flags & ~mDrawModifiers.mPaintFilterClearBits) |

            mDrawModifiers.mPaintFilterSetBits);

    mFilteredPaint.setFlags(flags);

    // check if paint filter trying to override bitmap filter

    if ((clearBits | setBits) & sFilterBitmapFlag) {

        mFilteredPaint.setFilterLevel(flags & sFilterBitmapFlag

                ? SkPaint::kLow_FilterLevel : SkPaint::kNone_FilterLevel);

    }

    return &mFilteredPaint;

}