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wallpaper: support different fill modes

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bbedward
2025-10-19 12:49:57 -04:00
parent e1c180a13f
commit 64960e4dcd
17 changed files with 368 additions and 207 deletions
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58
Shaders/frag/wp_pixelate.frag
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@@ -16,8 +16,7 @@ layout(std140, binding = 0) uniform buf {
float smoothness; // controls starting block size (0..1)
float aspectRatio; // (unused)
// Fill mode parameters
float fillMode; // 0=no(center), 1=crop, 2=fit, 3=stretch
float fillMode; // 0=stretch, 1=fit, 2=crop, 3=tile, 4=tileV, 5=tileH, 6=pad
float imageWidth1;
float imageHeight1;
float imageWidth2;
@@ -29,17 +28,11 @@ layout(std140, binding = 0) uniform buf {
vec2 calculateUV(vec2 uv, float imgWidth, float imgHeight) {
vec2 transformedUV = uv;
if (ubuf.fillMode < 0.5) {
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);
} else if (ubuf.fillMode < 1.5) {
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 < 2.5) {
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;
@@ -47,13 +40,46 @@ vec2 calculateUV(vec2 uv, float imgWidth, float imgHeight) {
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 w, float h) {
vec2 tuv = calculateUV(uv, w, h);
if (tuv.x < 0.0 || tuv.x > 1.0 || tuv.y < 0.0 || tuv.y > 1.0) return ubuf.fillColor;
return texture(tex, tuv);
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);
}
vec2 quantizeUV(vec2 uv, float cellPx) {