diff options
Diffstat (limited to 'libs/hwui/OpenGLRenderer.h')
| -rw-r--r-- | libs/hwui/OpenGLRenderer.h | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/libs/hwui/OpenGLRenderer.h b/libs/hwui/OpenGLRenderer.h index 04a47fc..dd7a5a2 100644 --- a/libs/hwui/OpenGLRenderer.h +++ b/libs/hwui/OpenGLRenderer.h @@ -51,6 +51,7 @@ namespace uirenderer { struct DrawModifiers { SkiaShader* mShader; SkiaColorFilter* mColorFilter; + float mOverrideLayerAlpha; // Drop shadow bool mHasShadow; @@ -275,6 +276,9 @@ public: virtual void resetPaintFilter(); virtual void setupPaintFilter(int clearBits, int setBits); + // If this value is set to < 1.0, it overrides alpha set on layer (see drawBitmap, drawLayer) + void setOverrideLayerAlpha(float alpha) { mDrawModifiers.mOverrideLayerAlpha = alpha; } + SkPaint* filterPaint(SkPaint* paint); bool storeDisplayState(DeferredDisplayState& state, int stateDeferFlags); @@ -283,7 +287,6 @@ public: const DrawModifiers& getDrawModifiers() { return mDrawModifiers; } void setDrawModifiers(const DrawModifiers& drawModifiers) { mDrawModifiers = drawModifiers; } - // TODO: what does this mean? no perspective? no rotate? ANDROID_API bool isCurrentTransformSimple() { return mSnapshot->transform->isSimple(); } @@ -325,7 +328,8 @@ public: /** * Gets the alpha and xfermode out of a paint object. If the paint is null * alpha will be 255 and the xfermode will be SRC_OVER. This method does - * not multiply the paint's alpha by the current snapshot's alpha. + * not multiply the paint's alpha by the current snapshot's alpha, and does + * not replace the alpha with the overrideLayerAlpha * * @param paint The paint to extract values from * @param alpha Where to store the resulting alpha @@ -450,13 +454,21 @@ protected: /** * Gets the alpha and xfermode out of a paint object. If the paint is null - * alpha will be 255 and the xfermode will be SRC_OVER. + * alpha will be 255 and the xfermode will be SRC_OVER. Accounts for both + * snapshot alpha, and overrideLayerAlpha * * @param paint The paint to extract values from * @param alpha Where to store the resulting alpha * @param mode Where to store the resulting xfermode */ - inline void getAlphaAndMode(SkPaint* paint, int* alpha, SkXfermode::Mode* mode); + inline void getAlphaAndMode(SkPaint* paint, int* alpha, SkXfermode::Mode* mode) const; + + /** + * Gets the alpha from a layer, accounting for snapshot alpha and overrideLayerAlpha + * + * @param layer The layer from which the alpha is extracted + */ + inline float getLayerAlpha(Layer* layer) const; /** * Safely retrieves the mode from the specified xfermode. If the specified |