uniform highp sampler2D tex0; | |
uniform highp sampler2D tex1; | |
varying highp vec2 v_texcoord; | |
uniform lowp float qt_Opacity; | |
void main() { | |
float y = 1.16438356 * (texture2D(tex0, v_texcoord).x - 0.0625); | |
float u = texture2D(tex1, v_texcoord).g - 0.5; | |
float v = texture2D(tex1, v_texcoord).a - 0.5; | |
y *= qt_Opacity; | |
u *= qt_Opacity; | |
v *= qt_Opacity; | |
gl_FragColor.r = y + 1.59602678 * v; | |
gl_FragColor.g = y - 0.39176229 * u - 0.81296764 * v; | |
gl_FragColor.b = y + 2.01723214 * u; | |
gl_FragColor.a = qt_Opacity; | |
} |