1 files changed, 16 insertions, 1 deletions
diff --git a/src/opengl/gl2paintengineex/qglengineshadersource_p.h b/src/opengl/gl2paintengineex/qglengineshadersource_p.h
index 70cc67e..61cc63e 100644
--- a/src/opengl/gl2paintengineex/qglengineshadersource_p.h
+++ b/src/opengl/gl2paintengineex/qglengineshadersource_p.h
@@ -130,7 +130,7 @@ static const char* const qglslPatternBrushSrcFragmentShader = "\
     uniform lowp    vec4      patternColor; \
     varying mediump vec2      patternTexCoords;\
     lowp vec4 srcPixel() { \
-        return patternColor * texture2D(brushTexture, patternTexCoords).r; \
+        return patternColor * (1.0 - texture2D(brushTexture, patternTexCoords).r); \
     }\n";
 
 
@@ -278,6 +278,13 @@ static const char* const qglslTextureBrushSrcFragmentShader = "\
         return texture2D(brushTexture, brushTextureCoords); \
     }";
 
+static const char* const qglslTextureBrushSrcWithPatternFragmentShader = "\
+    varying mediump vec2      brushTextureCoords; \
+    uniform lowp    vec4      patternColor; \
+    uniform         sampler2D brushTexture; \
+    lowp vec4 srcPixel() { \
+        return patternColor * (1.0 - texture2D(brushTexture, brushTextureCoords).r); \
+    }";
 
 // Solid Fill Brush
 static const char* const qglslSolidBrushSrcFragmentShader = "\
@@ -293,6 +300,14 @@ static const char* const qglslImageSrcFragmentShader = "\
         return texture2D(imageTexture, textureCoords); \
     }";
 
+static const char* const qglslImageSrcWithPatternFragmentShader = "\
+    varying highp vec2      textureCoords; \
+    uniform lowp  vec4      patternColor; \
+    uniform       sampler2D imageTexture; \
+    lowp vec4 srcPixel() { \
+        return patternColor * (1.0 - texture2D(imageTexture, textureCoords).r); \
+    }\n";
+
 static const char* const qglslNonPremultipliedImageSrcFragmentShader = "\
     varying highp vec2      textureCoords; \
     uniform       sampler2D imageTexture; \