Support copying the overlapping region from one buffer to another.#8463
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mcourteaux merged 2 commits intohalide:mainfrom Mar 1, 2025
Merged
Support copying the overlapping region from one buffer to another.#8463mcourteaux merged 2 commits intohalide:mainfrom
mcourteaux merged 2 commits intohalide:mainfrom
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mcourteaux
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One of the build bots died? Can we restart one build specifically manually? Or will everything have to rerun? |
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Sorry, I had to restart the buildmaster. You may need to rerun everything :-/ |
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zvookin
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Nov 8, 2024
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This is just to satisfy the formatter right?
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Yes. I put a comment on it in the PR. I have clang-format-18, but the build bots still run clang-format-17. Version 18 wants this change for some reason.
zvookin
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Nov 8, 2024
…stead of being restricted to copy to the entire dst buffer).
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All tests passing. Can we land this? |
abadams
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Feb 21, 2025
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TLDR: This PR makes it possible to copy from a smaller buffer to a bigger buffer as well (i.e. blit a buffer onto another buffer). Use case: workaround for #8235: realize pipeline to a buffer that acts as a crop, and then copy the result back.
This PR makes it possible to copy from any buffer to any other buffer with the same number of dimensions. This is in contrast to the original functionality where it tries to copy from src to the entire number of elements in the dst buffer (even if src is smaller).
dst_beginindevice_copy.src_beginanddst_beginvalues.CL_MISALIGNED_SUB_BUFFER_OFFSET#8235 where I make new a new buffer that acts as a crop (but is not), and copy the result back to the original buffer after the pipeline is done.Irrelevant: my clang-format for some reason wanted to move two things in Halide::Runtime::Buffer, which is compatible with the one on the automatic test here. It seems to be the difference between clang-format-17 (github test) and clang-format-18 (my machine).