Move shaders to subdirectory

shaders/thumb.vert

@@ -0,0 +1,20 @@
+#version 330
+
+in vec2 qt_Vertex;
+in vec2 qt_MultiTexCoord0;
+in ivec3 imageSize_num;
+out vec3 qt_TexCoord0;
+uniform ivec3 viewport_row;
+uniform mat4 mvp;
+uniform vec2 offset;
+
+void main(void)
+{
+    vec2 pos = qt_Vertex * 0.5;
+    pos.y *= -1.0;
+    pos = pos * imageSize_num.xy + 69;
+    ivec2 off = ivec2(imageSize_num.z % viewport_row.z, imageSize_num.z / viewport_row.z) * ivec2(138, 158);
+
+    gl_Position = mvp * vec4(pos - offset + off, 0.0, 1.0);
+    qt_TexCoord0 = vec3(qt_MultiTexCoord0, imageSize_num.z + 0.1);
+}