Move shaders to subdirectory

shaders/image.frag

@@ -0,0 +1,29 @@
+#version 330
+
+uniform sampler2D qt_Texture0;
+uniform vec3 mtf_param;
+uniform bool bw;
+uniform bool invert;
+in vec2 qt_TexCoord0;
+out vec4 color;
+
+vec4 MTF(vec4 x, vec3 m)
+{
+    x = (x - m.x) / (m.z - m.x);
+    x = clamp(x, vec4(0.0), vec4(1.0));
+    return ((m.y - 1) * x) / ((2 * m.y - 1) * x - m.y);
+}
+
+void main(void)
+{
+    color = texture(qt_Texture0, qt_TexCoord0);
+    if(bw)color = color.rrra;
+    color = MTF(color, mtf_param);
+
+    if(invert)color = vec4(1.0) - color;
+
+    if(any(lessThan(qt_TexCoord0, vec2(0.0))) || any(greaterThan(qt_TexCoord0, vec2(1.0))))
+        color = vec4(0.0, 0.0, 0.0, 1.0);
+
+    color.a = 1.0;
+}