1 files changed, 31 insertions, 0 deletions
diff --git a/Ryujinx.Graphics.Vulkan/Shaders/ColorCopyWideningComputeShaderSource.comp b/Ryujinx.Graphics.Vulkan/Shaders/ColorCopyWideningComputeShaderSource.comp
new file mode 100644
index 00000000..a9be454f
--- /dev/null
+++ b/Ryujinx.Graphics.Vulkan/Shaders/ColorCopyWideningComputeShaderSource.comp
@@ -0,0 +1,31 @@
+#version 450 core
+
+layout (std140, binding = 0) uniform ratio_in
+{
+    int ratio;
+};
+
+layout (set = 2, binding = 0) uniform usampler2D src;
+layout (set = 3, binding = 0) writeonly uniform uimage2D dst;
+
+layout (local_size_x = 32, local_size_y = 32, local_size_z = 1) in;
+
+void main()
+{
+    uvec2 coords = gl_GlobalInvocationID.xy;
+    ivec2 imageSz = imageSize(dst);
+
+    if (int(coords.x) >= imageSz.x || int(coords.y) >= imageSz.y)
+    {
+        return;
+    }
+
+    uvec2 srcCoords = uvec2(coords.x << ratio, coords.y);
+
+    uint r = texelFetchOffset(src, ivec2(srcCoords), 0, ivec2(0, 0)).r;
+    uint g = texelFetchOffset(src, ivec2(srcCoords), 0, ivec2(1, 0)).r;
+    uint b = texelFetchOffset(src, ivec2(srcCoords), 0, ivec2(2, 0)).r;
+    uint a = texelFetchOffset(src, ivec2(srcCoords), 0, ivec2(3, 0)).r;
+
+    imageStore(dst, ivec2(coords), uvec4(r, g, b, a));
+}
+\ No newline at end of file