-
-const char* VERTEX_SHADER =
- "INPUT mediump vec2 aPosition;\n"
- "INPUT mediump vec2 aDrift;\n"
-
- "uniform highp mat4 uMvpMatrix;\n"
- "uniform highp vec3 uSize;\n"
- "uniform mediump float borderSize;\n"
-
- "//Visual size and offset\n"
- "uniform mediump vec2 offset;\n"
- "uniform highp 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 =
- "uniform lowp vec4 uColor;\n"
- "uniform lowp vec4 borderColor;\n"
- "uniform lowp vec3 mixColor;\n"
-
- "void main()\n"
- "{\n"
- " OUT_COLOR = vec4(mixColor, 1.0) * borderColor * uColor;\n"
- "}\n";
-
-const char* VERTEX_SHADER_ANTI_ALIASING =
- "INPUT mediump vec2 aPosition;\n"
- "INPUT mediump vec2 aDrift;\n"
- "OUTPUT mediump float vAlpha;\n"
-
- "uniform highp mat4 uMvpMatrix;\n"
- "uniform highp vec3 uSize;\n"
- "uniform mediump float borderSize;\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 =
- "INPUT mediump float vAlpha;\n"
-
- "uniform lowp vec4 uColor;\n"
- "uniform lowp vec4 borderColor;\n"
- "uniform lowp vec3 mixColor;\n"
- "uniform mediump float borderSize;\n"
-
- "void main()\n"
- "{\n"
- " OUT_COLOR = vec4(mixColor, 1.0) * borderColor * uColor;\n"
- " OUT_COLOR.a *= smoothstep(0.0, 1.5, vAlpha) * smoothstep( borderSize + 1.5, borderSize, vAlpha );\n"
- "}\n";