Fix b/7087723 Patch leftover after tapping the red eye area

Change-Id: I06f5c491b09cf13698f001e8b11f42506fda5bbd

Author: Ruei-sung Lin

media/mca/filterpacks/java/android/filterpacks/imageproc/RedEyeFilter.java

@@ -72,9 +72,7 @@ public class RedEyeFilter extends Filter {
             "void main() {\n" +
             "  vec4 color = texture2D(tex_sampler_0, v_texcoord);\n" +
             "  vec4 mask = texture2D(tex_sampler_1, v_texcoord);\n" +
-            "  gl_FragColor = vec4(mask.a, mask.a, mask.a, 1.0) * intensity + color * (1.0 - intensity);\n" +
             "  if (mask.a > 0.0) {\n" +
-            "    gl_FragColor.r = 0.0;\n" +
             "    float green_blue = color.g + color.b;\n" +
             "    float red_intensity = color.r / green_blue;\n" +
             "    if (red_intensity > intensity) {\n" +
@@ -105,8 +103,8 @@ public void initProgram(FilterContext context, int target) {
                 ShaderProgram shaderProgram = new ShaderProgram(context, mRedEyeShader);
                 shaderProgram.setMaximumTileSize(mTileSize);
                 mProgram = shaderProgram;
+                mProgram.setHostValue("intensity", DEFAULT_RED_INTENSITY);
                 break;
-
             default:
                 throw new RuntimeException("Filter RedEye does not support frames of " +
                     "target " + target + "!");
@@ -180,8 +178,6 @@ private void createRedEyeFrame(FilterContext context) {
     }
 
     private void updateProgramParams() {
-        mProgram.setHostValue("intensity", DEFAULT_RED_INTENSITY);
-
         if ( mCenters.length % 2 == 1) {
             throw new RuntimeException("The size of center array must be even.");
         }