Vortex 2.0 changes:
+ Microarchitecture optimizations + 64-bit support + Xilinx FPGA support + LLVM-16 support + Refactoring and quality control fixes minor update minor update minor update minor update minor update minor update cleanup cleanup cache bindings and memory perf refactory minor update minor update hw unit tests fixes minor update minor update minor update minor update minor update minor udpate minor update minor update minor update minor update minor update minor update minor update minor updates minor updates minor update minor update minor update minor update minor update minor update minor updates minor updates minor updates minor updates minor update minor update
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@@ -1,54 +0,0 @@
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__kernel
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void convolution(
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__read_only image2d_t sourceImage,
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__write_only image2d_t outputImage,
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int rows,
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int cols,
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__constant float* filter,
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int filterWidth,
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sampler_t sampler)
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{
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// Store each work-item’s unique row and column
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int column = get_global_id(0);
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int row = get_global_id(1);
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// Half the width of the filter is needed for indexing
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// memory later
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int halfWidth = (int)(filterWidth/2);
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// All accesses to images return data as four-element vector
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// (i.e., float4), although only the 'x' component will contain
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// meaningful data in this code
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float4 sum = {0.0f, 0.0f, 0.0f, 0.0f};
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// Iterator for the filter
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int filterIdx = 0;
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// Each work-item iterates around its local area based on the
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// size of the filter
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int2 coords; // Coordinates for accessing the image
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// Iterate the filter rows
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for(int i = -halfWidth; i <= halfWidth; i++) {
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coords.y = row + i;
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// Iterate over the filter columns
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for(int j = -halfWidth; j <= halfWidth; j++) {
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coords.x = column + j;
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float4 pixel;
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// Read a pixel from the image. A single channel image
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// stores the pixel in the 'x' coordinate of the returned
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// vector.
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pixel = read_imagef(sourceImage, sampler, coords);
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sum.x += pixel.x * filter[filterIdx++];
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}
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}
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// Copy the data to the output image if the
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// work-item is in bounds
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if(row < rows && column < cols) {
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coords.x = column;
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coords.y = row;
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write_imagef(outputImage, coords, sum);
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}
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}
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