color blindness enhancement
This is an attempt at improving the experience of
users with color vision impairement.
At this time this feature can only be enabled for
debugging:
adb shell service call SurfaceFlinger 1014 i32 PARAM
with PARAM:
0 : disabled
1 : protanomaly/protanopia simulation
2 : deuteranomaly/deuteranopia simulation
3 : tritanopia/tritanomaly simulation
11, 12, 13: same as above w/ attempted correction/enhancement
The enhancement algorithm tries to spread the "error"
such that tones that would otherwise appear similar can be
distinguished.
Bug: 9465644
Change-Id: I860f7eed0cb81f54ef9cf24ad78155b6395ade48
diff --git a/services/surfaceflinger/RenderEngine/Description.cpp b/services/surfaceflinger/RenderEngine/Description.cpp
index b0325c6..1adcd1f 100644
--- a/services/surfaceflinger/RenderEngine/Description.cpp
+++ b/services/surfaceflinger/RenderEngine/Description.cpp
@@ -29,9 +29,10 @@
Description::Description() :
mUniformsDirty(true) {
mPlaneAlpha = 1.0f;
- mPremultipliedAlpha = true;
+ mPremultipliedAlpha = false;
mOpaque = true;
mTextureEnabled = false;
+ mColorMatrixEnabled = false;
memset(mColor, 0, sizeof(mColor));
}
@@ -81,4 +82,11 @@
mUniformsDirty = true;
}
+void Description::setColorMatrix(const mat4& mtx) {
+ const mat4 identity;
+ mColorMatrix = mtx;
+ mColorMatrixEnabled = (mtx != identity);
+}
+
+
} /* namespace android */