am 2eaefe19: Simplify handling of opaque layers in shader generation (110bc6a5) · Commits · e / devices / smdk4412 / android_frameworks_native

services/surfaceflinger/RenderEngine/ProgramCache.cpp

+5 −17

Original line number	Diff line number	Diff line
		@@ -140,30 +140,18 @@ String8 ProgramCache::generateFragmentShader(const Key& needs) {
		} else {
		fs << "gl_FragColor = color;";
		}
		if (needs.isOpaque()) {
		fs << "gl_FragColor.a = 1.0;";
		}
		if (needs.hasPlaneAlpha()) {
		// modulate the alpha value with planeAlpha
		if (needs.isPremultiplied()) {
		// ... and the color too if we're premultiplied
		if (needs.isOpaque()) {
		// ... we're opaque, only premultiply the color component
		fs << "gl_FragColor.rgb *= alphaPlane;"
		<< "gl_FragColor.a = alphaPlane;";
		} else {
		fs << "gl_FragColor *= alphaPlane;";
		}
		} else {
		// not premultiplied
		if (needs.isOpaque()) {
		fs << "gl_FragColor.a = alphaPlane;";
		} else {
		fs << "gl_FragColor.a *= alphaPlane;";
		}
		}
		} else {
		if (needs.isOpaque()) {
		fs << "gl_FragColor.a = 1.0;";
		}
		}
		fs << dedent << "}";
		return fs.getString();
		}