-
-
-const char* VERTEX_SHADER = DALI_COMPOSE_SHADER(
- attribute mediump vec2 aPosition;\n
- attribute mediump vec2 aDrift;\n
- uniform mediump mat4 uMvpMatrix;\n
- uniform mediump vec3 uSize;\n
- uniform mediump float borderSize;\n
- \n
-
- //Visual size and offset
- uniform mediump vec2 offset;\n
- uniform mediump vec2 size;\n
- uniform mediump vec4 offsetSizeMode;\n
- uniform mediump vec2 origin;\n
- uniform mediump vec2 anchorPoint;\n
-
- vec2 ComputeVertexPosition()\n
- {\n
- vec2 visualSize = mix(uSize.xy*size, size, offsetSizeMode.zw );\n
- vec2 visualOffset = mix( offset, offset/uSize.xy, offsetSizeMode.xy);\n
- return (aPosition + anchorPoint)*visualSize + (visualOffset + origin)*uSize.xy;\n
- }\n
-
- void main()\n
- {\n
- vec2 position = ComputeVertexPosition() + aDrift*borderSize;\n
- gl_Position = uMvpMatrix * vec4(position, 0.0, 1.0);\n
- }\n
-);
-
-const char* FRAGMENT_SHADER = DALI_COMPOSE_SHADER(
- uniform lowp vec4 uColor;\n
- uniform lowp vec4 borderColor;\n
- \n
- void main()\n
- {\n
- gl_FragColor = borderColor*uColor;\n
- }\n
-);
-
-const char* VERTEX_SHADER_ANTI_ALIASING = DALI_COMPOSE_SHADER(
- attribute mediump vec2 aPosition;\n
- attribute mediump vec2 aDrift;\n
- uniform mediump mat4 uMvpMatrix;\n
- uniform mediump vec3 uSize;\n
- uniform mediump float borderSize;\n
- varying mediump float vAlpha;\n
- \n
- void main()\n
- {\n
- vec2 position = aPosition*(uSize.xy+vec2(0.75)) + aDrift*(borderSize+1.5);\n
- gl_Position = uMvpMatrix * vec4(position, 0.0, 1.0);\n
- vAlpha = min( abs(aDrift.x), abs(aDrift.y) )*(borderSize+1.5);
- }\n
-);
-
-const char* FRAGMENT_SHADER_ANTI_ALIASING = DALI_COMPOSE_SHADER(
- uniform lowp vec4 uColor;\n
- uniform lowp vec4 borderColor;\n
- uniform mediump float borderSize;\n
- varying mediump float vAlpha;\n
- \n
- void main()\n
- {\n
- gl_FragColor = borderColor*uColor;\n
- gl_FragColor.a *= smoothstep(0.0, 1.5, vAlpha)*smoothstep( borderSize+1.5, borderSize, vAlpha );\n
- }\n
-);