switch hto monorepo structure

quickshell/Shaders/frag/wp_fade.frag

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+// ===== wp_fade.frag =====
+#version 450
+
+layout(location = 0) in vec2 qt_TexCoord0;
+layout(location = 0) out vec4 fragColor;
+
+layout(binding = 1) uniform sampler2D source1;
+layout(binding = 2) uniform sampler2D source2;
+
+layout(std140, binding = 0) uniform buf {
+    mat4 qt_Matrix;
+    float qt_Opacity;
+    float progress;
+    
+    // Fill mode parameters
+    float fillMode;      // 0=stretch, 1=fit, 2=crop, 3=tile, 4=tileV, 5=tileH, 6=pad
+    float imageWidth1;   // Width of source1 image
+    float imageHeight1;  // Height of source1 image
+    float imageWidth2;   // Width of source2 image
+    float imageHeight2;  // Height of source2 image
+    float screenWidth;   // Screen width
+    float screenHeight;  // Screen height
+    vec4 fillColor;      // Fill color for empty areas (default: black)
+} ubuf;
+
+vec2 calculateUV(vec2 uv, float imgWidth, float imgHeight) {
+    vec2 transformedUV = uv;
+
+    if (ubuf.fillMode < 0.5) {
+        transformedUV = uv;
+    }
+    else if (ubuf.fillMode < 1.5) {
+        float scale = min(ubuf.screenWidth / imgWidth, ubuf.screenHeight / imgHeight);
+        vec2 scaledImageSize = vec2(imgWidth, imgHeight) * scale;
+        vec2 offset = (vec2(ubuf.screenWidth, ubuf.screenHeight) - scaledImageSize) * 0.5;
+        vec2 screenPixel = uv * vec2(ubuf.screenWidth, ubuf.screenHeight);
+        vec2 imagePixel = (screenPixel - offset) / scale;
+        transformedUV = imagePixel / vec2(imgWidth, imgHeight);
+    }
+    else if (ubuf.fillMode < 2.5) {
+        float scale = max(ubuf.screenWidth / imgWidth, ubuf.screenHeight / imgHeight);
+        vec2 scaledImageSize = vec2(imgWidth, imgHeight) * scale;
+        vec2 offset = (scaledImageSize - vec2(ubuf.screenWidth, ubuf.screenHeight)) / scaledImageSize;
+        transformedUV = uv * (vec2(1.0) - offset) + offset * 0.5;
+    }
+    else if (ubuf.fillMode < 3.5) {
+        transformedUV = fract(uv * vec2(ubuf.screenWidth, ubuf.screenHeight) / vec2(imgWidth, imgHeight));
+    }
+    else if (ubuf.fillMode < 4.5) {
+        vec2 tileUV = uv * vec2(ubuf.screenWidth, ubuf.screenHeight) / vec2(imgWidth, imgHeight);
+        transformedUV = vec2(uv.x, fract(tileUV.y));
+    }
+    else if (ubuf.fillMode < 5.5) {
+        vec2 tileUV = uv * vec2(ubuf.screenWidth, ubuf.screenHeight) / vec2(imgWidth, imgHeight);
+        transformedUV = vec2(fract(tileUV.x), uv.y);
+    }
+    else {
+        vec2 screenPixel = uv * vec2(ubuf.screenWidth, ubuf.screenHeight);
+        vec2 imageOffset = (vec2(ubuf.screenWidth, ubuf.screenHeight) - vec2(imgWidth, imgHeight)) * 0.5;
+        vec2 imagePixel = screenPixel - imageOffset;
+        transformedUV = imagePixel / vec2(imgWidth, imgHeight);
+    }
+
+    return transformedUV;
+}
+
+vec4 sampleWithFillMode(sampler2D tex, vec2 uv, float imgWidth, float imgHeight) {
+    vec2 transformedUV = calculateUV(uv, imgWidth, imgHeight);
+
+    if (ubuf.fillMode >= 2.5 && ubuf.fillMode <= 5.5) {
+        return texture(tex, transformedUV);
+    }
+
+    if (transformedUV.x < 0.0 || transformedUV.x > 1.0 ||
+        transformedUV.y < 0.0 || transformedUV.y > 1.0) {
+        return ubuf.fillColor;
+    }
+
+    return texture(tex, transformedUV);
+}
+
+void main() {
+    vec2 uv = qt_TexCoord0;
+    
+    // Sample textures with fill mode
+    vec4 color1 = sampleWithFillMode(source1, uv, ubuf.imageWidth1, ubuf.imageHeight1);
+    vec4 color2 = sampleWithFillMode(source2, uv, ubuf.imageWidth2, ubuf.imageHeight2);
+    
+    // Mix the two textures based on progress value
+    fragColor = mix(color1, color2, ubuf.progress) * ubuf.qt_Opacity;
+}