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Commit f5b27f71 authored by Jesse Hall's avatar Jesse Hall Committed by Android Git Automerger
Browse files

am b763d5ff: Assume LayerScreenshot has pre-multiplied alpha 

* commit 'b763d5ff':
  Assume LayerScreenshot has pre-multiplied alpha
parents 42bac0bd b763d5ff

services/surfaceflinger/LayerScreenshot.cpp

+4 −4
Original line number Diff line number Diff line
@@ -118,21 +118,21 @@ void LayerScreenshot::onDraw(const sp<const DisplayDevice>& hw, const Region& cl 


        if (s.alpha == 0xFF) {

            glDisable(GL_BLEND);

            glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);

        } else {

            glEnable(GL_BLEND);

            glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);

            glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);

            glColor4f(alpha, alpha, alpha, alpha);

            glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);

        }



        LayerMesh mesh;

        computeGeometry(hw, &mesh);



        glColor4f(0, 0, 0, alpha);



        glDisable(GL_TEXTURE_EXTERNAL_OES);

        glEnable(GL_TEXTURE_2D);



        glBindTexture(GL_TEXTURE_2D, mTextureName);

        glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);

        glMatrixMode(GL_TEXTURE);

        glLoadIdentity();

        glMatrixMode(GL_MODELVIEW);