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Commit 1c5eb597 authored by Minkyoung Kim's avatar Minkyoung Kim Committed by John Reck
Browse files

Fix bug on High Contrast Text : where DarkTheme is enabled && 

ForceDarkAllowed is true.

In this condition, text seems be bold so far.
From now, in this case, text would have black outline, white inline
color.

this is related to
https://partnerissuetracker.corp.google.com/u/1/issues/175363190.

Change-Id: Icf0048ef8d55c2e29676944c24c2050f531616d5
Merged-In: Icf0048ef8d55c2e29676944c24c2050f531616d5
parent be75db95

libs/hwui/RecordingCanvas.cpp

+20 −1
Original line number Diff line number Diff line
@@ -401,10 +401,11 @@ struct DrawImageLattice final : Op { 
struct DrawTextBlob final : Op {

    static const auto kType = Type::DrawTextBlob;

    DrawTextBlob(const SkTextBlob* blob, SkScalar x, SkScalar y, const SkPaint& paint)

            : blob(sk_ref_sp(blob)), x(x), y(y), paint(paint) {}

        : blob(sk_ref_sp(blob)), x(x), y(y), paint(paint), drawTextBlobMode(gDrawTextBlobMode) {}

    sk_sp<const SkTextBlob> blob;

    SkScalar x, y;

    SkPaint paint;

    DrawTextBlobMode drawTextBlobMode;

    void draw(SkCanvas* c, const SkMatrix&) const { c->drawTextBlob(blob.get(), x, y, paint); }

};
@@ -791,6 +792,24 @@ constexpr color_transform_fn colorTransformForOp() { 
    }

}



template<>

constexpr color_transform_fn colorTransformForOp<DrawTextBlob>() {

    return [](const void *opRaw, ColorTransform transform) {

        const DrawTextBlob *op = reinterpret_cast<const DrawTextBlob*>(opRaw);

        switch (op->drawTextBlobMode) {

        case DrawTextBlobMode::HctOutline:

            const_cast<SkPaint&>(op->paint).setColor(SK_ColorBLACK);

            break;

        case DrawTextBlobMode::HctInner:

            const_cast<SkPaint&>(op->paint).setColor(SK_ColorWHITE);

            break;

        default:

            transformPaint(transform, const_cast<SkPaint*>(&(op->paint)));

            break;

        }

    };

}



#define X(T) colorTransformForOp<T>(),

static const color_transform_fn color_transform_fns[] = {

#include "DisplayListOps.in"

libs/hwui/hwui/Canvas.cpp

+4 −0
Original line number Diff line number Diff line
@@ -111,6 +111,7 @@ public: 
            bool darken = channelSum < (128 * 3);



            // outline

            gDrawTextBlobMode = DrawTextBlobMode::HctOutline;

            Paint outlinePaint(paint);

            simplifyPaint(darken ? SK_ColorWHITE : SK_ColorBLACK, &outlinePaint);

            outlinePaint.setStyle(SkPaint::kStrokeAndFill_Style);
@@ -118,11 +119,14 @@ public: 
                               bounds.mRight, bounds.mBottom, totalAdvance);



            // inner

            gDrawTextBlobMode = DrawTextBlobMode::HctInner;

            Paint innerPaint(paint);

            simplifyPaint(darken ? SK_ColorBLACK : SK_ColorWHITE, &innerPaint);

            innerPaint.setStyle(SkPaint::kFill_Style);

            canvas->drawGlyphs(glyphFunc, glyphCount, innerPaint, x, y, bounds.mLeft, bounds.mTop,

                               bounds.mRight, bounds.mBottom, totalAdvance);



            gDrawTextBlobMode = DrawTextBlobMode::Normal;

        } else {

            // standard draw path

            canvas->drawGlyphs(glyphFunc, glyphCount, paint, x, y, bounds.mLeft, bounds.mTop,

libs/hwui/hwui/Canvas.h

+8 −0
Original line number Diff line number Diff line
@@ -87,6 +87,14 @@ class Bitmap; 
class Paint;

struct Typeface;



enum class DrawTextBlobMode {

    Normal,

    HctOutline,

    HctInner,

};



inline DrawTextBlobMode gDrawTextBlobMode = DrawTextBlobMode::Normal;



class ANDROID_API Canvas {

public:

    virtual ~Canvas(){};