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#ifdef GL_OES_standard_derivatives
# extension GL_OES_standard_derivatives : enable
#else
# define use_fallback
#endif
varying highp vec2 sampleCoord;
varying highp vec2 shadowSampleCoord;
varying highp vec4 normalizedTextureBounds;
#ifdef use_fallback
varying highp vec2 alphas;
#endif
uniform sampler2D _qt_texture;
uniform highp vec4 color;
uniform highp vec4 shadowColor;
void main()
{
highp float shadowDistance = texture2D(_qt_texture,
clamp(shadowSampleCoord,
normalizedTextureBounds.xy,
normalizedTextureBounds.zw)).a;
#ifdef use_fallback
highp float shadowAlpha = smoothstep(alphas.x, alphas.y, shadowDistance);
#else
highp float shadowDistanceD = fwidth(shadowDistance);
highp float shadowAlpha = smoothstep(0.5 - shadowDistanceD, 0.5, shadowDistance);
#endif
highp vec4 shadowPixel = color * shadowColor * shadowAlpha;
highp float textDistance = texture2D(_qt_texture,
clamp(sampleCoord,
normalizedTextureBounds.xy,
normalizedTextureBounds.zw)).a;
#ifdef use_fallback
highp float textAlpha = smoothstep(alphas.x, alphas.y, textDistance);
#else
highp float textDistanceD = fwidth(textDistance);
highp float textAlpha = smoothstep(0.5 - textDistanceD, 0.5, textDistance);
#endif
highp vec4 textPixel = color * textAlpha;
gl_FragColor = mix(shadowPixel, textPixel, textPixel.a);
}
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