Fix visual defect when BorderlineOffset = 1.0f

[platform/core/uifw/dali-toolkit.git] / dali-toolkit / internal / graphics / shaders / image-visual-shader.frag

diff --git a/dali-toolkit/internal/graphics/shaders/image-visual-shader.frag b/dali-toolkit/internal/graphics/shaders/image-visual-shader.frag
index 37f080f..a0f39d9 100644 (file)
--- a/dali-toolkit/internal/graphics/shaders/image-visual-shader.frag
+++ b/dali-toolkit/internal/graphics/shaders/image-visual-shader.frag
@@ -1,30 +1,27 @@
-#ifndef IS_REQUIRED_ROUNDED_CORNER
-#define IS_REQUIRED_ROUNDED_CORNER 0
-#endif
-#ifndef IS_REQUIRED_BORDERLINE
-#define IS_REQUIRED_BORDERLINE 0
-#endif
-#ifndef ATLAS_DEFAULT_WARP
-#define ATLAS_DEFAULT_WARP 0
-#endif
-#ifndef ATLAS_CUSTOM_WARP
-#define ATLAS_CUSTOM_WARP 0
-#endif
-
 INPUT mediump vec2 vTexCoord;
-#if IS_REQUIRED_ROUNDED_CORNER || IS_REQUIRED_BORDERLINE
+#if defined(IS_REQUIRED_ROUNDED_CORNER) || defined(IS_REQUIRED_BORDERLINE)
 INPUT mediump vec2 vPosition;
 INPUT mediump vec2 vRectSize;
 INPUT mediump vec2 vOptRectSize;
-#if IS_REQUIRED_ROUNDED_CORNER
+#ifdef IS_REQUIRED_ROUNDED_CORNER
 INPUT mediump vec4 vCornerRadius;
 #endif
 #endif
 
 uniform sampler2D sTexture;
-#if ATLAS_DEFAULT_WARP
+#ifdef IS_REQUIRED_YUV_TO_RGB
+uniform sampler2D sTextureU;
+uniform sampler2D sTextureV;
+#endif
+
+#ifdef IS_REQUIRED_ALPHA_MASKING
+uniform sampler2D sMaskTexture;
+INPUT mediump vec2 vMaskTexCoord;
+#endif
+
+#ifdef ATLAS_DEFAULT_WARP
 uniform mediump vec4 uAtlasRect;
-#elif ATLAS_CUSTOM_WARP
+#elif defined(ATLAS_CUSTOM_WARP)
 // WrapMode -- 0: CLAMP; 1: REPEAT; 2: REFLECT;
 uniform lowp vec2 wrapMode;
 #endif
@@ -32,14 +29,14 @@ uniform lowp vec2 wrapMode;
 uniform lowp vec4 uColor;
 uniform lowp vec3 mixColor;
 uniform lowp float preMultipliedAlpha;
-#if IS_REQUIRED_BORDERLINE
+#ifdef IS_REQUIRED_BORDERLINE
 uniform mediump float borderlineWidth;
 uniform mediump float borderlineOffset;
 uniform lowp vec4 borderlineColor;
 uniform lowp vec4 uActorColor;
 #endif
 
-#if ATLAS_CUSTOM_WARP
+#ifdef ATLAS_CUSTOM_WARP
 mediump float wrapCoordinate( mediump vec2 range, mediump float coordinate, lowp float wrap )
 {
   mediump float coord;
@@ -51,7 +48,7 @@ mediump float wrapCoordinate( mediump vec2 range, mediump float coordinate, lowp
 }
 #endif
 
-#if IS_REQUIRED_ROUNDED_CORNER || IS_REQUIRED_BORDERLINE
+#if defined(IS_REQUIRED_ROUNDED_CORNER) || defined(IS_REQUIRED_BORDERLINE)
 // Global values both rounded corner and borderline use
 
 // radius of rounded corner on this quadrant
@@ -75,7 +72,7 @@ mediump float gMinInlinePotential = 0.0;
 
 void calculateCornerRadius()
 {
-#if IS_REQUIRED_ROUNDED_CORNER
+#ifdef IS_REQUIRED_ROUNDED_CORNER
   gRadius =
   mix(
     mix(vCornerRadius.x, vCornerRadius.y, sign(vPosition.x) * 0.5 + 0.5),
@@ -89,7 +86,7 @@ void calculatePosition()
 {
   gFragmentPosition = abs(vPosition) - vRectSize;
   gCenterPosition = -gRadius;
-#if IS_REQUIRED_BORDERLINE
+#ifdef IS_REQUIRED_BORDERLINE
   gCenterPosition += borderlineWidth * (clamp(borderlineOffset, -1.0, 1.0) + 1.0) * 0.5;
 #endif
   gDiff = gFragmentPosition - gCenterPosition;
@@ -107,7 +104,7 @@ void setupMinMaxPotential()
   gMaxOutlinePotential = gRadius + gPotentialRange;
   gMinOutlinePotential = gRadius - gPotentialRange;
 
-#if IS_REQUIRED_BORDERLINE
+#ifdef IS_REQUIRED_BORDERLINE
   gMaxInlinePotential = gMaxOutlinePotential - borderlineWidth;
   gMinInlinePotential = gMinOutlinePotential - borderlineWidth;
 #else
@@ -130,7 +127,7 @@ void PreprocessPotential()
 }
 #endif
 
-#if IS_REQUIRED_BORDERLINE
+#ifdef IS_REQUIRED_BORDERLINE
 lowp vec4 convertBorderlineColor(lowp vec4 textureColor)
 {
   mediump float potential = gPotential;
@@ -157,7 +154,7 @@ lowp vec4 convertBorderlineColor(lowp vec4 textureColor)
   // But if borderlineOpacity > 0.0 and borderlineColor.a == 0.0, we need to apply tCornerRadius.
   if(borderlineOpacity > 0.0 && borderlineColor.a * borderlineOpacity < 1.0)
   {
-    mediump float tCornerRadius = -gCenterPosition;
+    mediump float tCornerRadius = -gCenterPosition + gPotentialRange;
     mediump float MaxTexturelinePotential = tCornerRadius + gPotentialRange;
     mediump float MinTexturelinePotential = tCornerRadius - gPotentialRange;
     if(potential > MaxTexturelinePotential)
@@ -193,7 +190,7 @@ lowp vec4 convertBorderlineColor(lowp vec4 textureColor)
 }
 #endif
 
-#if IS_REQUIRED_ROUNDED_CORNER
+#ifdef IS_REQUIRED_ROUNDED_CORNER
 mediump float calculateCornerOpacity()
 {
   mediump float potential = gPotential;
@@ -215,37 +212,66 @@ mediump float calculateCornerOpacity()
 }
 #endif
 
+#ifdef IS_REQUIRED_YUV_TO_RGB
+lowp vec3 ConvertYuvToRgb(mediump vec2 texCoord)
+{
+  lowp float y = texture(sTexture, texCoord).r;
+  lowp float u = texture(sTextureU, texCoord).r - 0.5;
+  lowp float v = texture(sTextureV, texCoord).r - 0.5;
+  lowp vec3 rgb;
+  rgb.r = y + (1.403 * v);
+  rgb.g = y - (0.344 * u) - (0.714 * v);
+  rgb.b = y + (1.770 * u);
+  return rgb;
+}
+#endif
+
 void main()
 {
-#if ATLAS_DEFAULT_WARP
+#ifdef ATLAS_DEFAULT_WARP
   mediump vec2 texCoord = clamp( mix( uAtlasRect.xy, uAtlasRect.zw, vTexCoord ), uAtlasRect.xy, uAtlasRect.zw );
-#elif ATLAS_CUSTOM_WARP
+#elif defined(ATLAS_CUSTOM_WARP)
   mediump vec2 texCoord = vec2( wrapCoordinate( uAtlasRect.xz, vTexCoord.x, wrapMode.x ),
                                 wrapCoordinate( uAtlasRect.yw, vTexCoord.y, wrapMode.y ) );
 #else
   mediump vec2 texCoord = vTexCoord;
 #endif
 
+#ifdef IS_REQUIRED_YUV_TO_RGB
+  lowp vec4 textureColor = vec4(ConvertYuvToRgb(texCoord), 1.0) * vec4( mixColor, 1.0 ) * uColor;
+#else
   lowp vec4 textureColor = TEXTURE( sTexture, texCoord ) * vec4( mixColor, 1.0 ) * uColor;
+#endif
+
+#ifdef IS_REQUIRED_ALPHA_MASKING
+  mediump float maskAlpha = TEXTURE(sMaskTexture, vMaskTexCoord).a;
+  textureColor.a *= maskAlpha;
+  textureColor.rgb *= mix(1.0, maskAlpha, preMultipliedAlpha);
+#endif
 
-#if IS_REQUIRED_ROUNDED_CORNER || IS_REQUIRED_BORDERLINE
+#if defined(IS_REQUIRED_ROUNDED_CORNER) || defined(IS_REQUIRED_BORDERLINE)
   // skip most potential calculate for performance
   if(abs(vPosition.x) < vOptRectSize.x && abs(vPosition.y) < vOptRectSize.y)
   {
     OUT_COLOR = textureColor;
-    return;
   }
-  PreprocessPotential();
+  else
+  {
+    PreprocessPotential();
 #endif
 
-#if IS_REQUIRED_BORDERLINE
-  textureColor = convertBorderlineColor(textureColor);
+#ifdef IS_REQUIRED_BORDERLINE
+    textureColor = convertBorderlineColor(textureColor);
 #endif
-  OUT_COLOR = textureColor;
+    OUT_COLOR = textureColor;
 
-#if IS_REQUIRED_ROUNDED_CORNER
-  mediump float opacity = calculateCornerOpacity();
-  OUT_COLOR.a *= opacity;
-  OUT_COLOR.rgb *= mix(1.0, opacity, preMultipliedAlpha);
+#ifdef IS_REQUIRED_ROUNDED_CORNER
+    mediump float opacity = calculateCornerOpacity();
+    OUT_COLOR.a *= opacity;
+    OUT_COLOR.rgb *= mix(1.0, opacity, preMultipliedAlpha);
+#endif
+
+#if defined(IS_REQUIRED_ROUNDED_CORNER) || defined(IS_REQUIRED_BORDERLINE)
+  }
 #endif
 }