Fix calculation/validation of layer/mip ranges in create_texture_view #2955
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Added a commit that checks for integer overflow because the fuzzer told me I had to. |
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…texture_view. The previous code was doing "selector.layers = base_layer .. count" instead of "base_layer .. base_layer + count" which looked dubious. Same thing for the mip range. It was also not taking the base layer count when in requested_layer_count when the texture was not a texture array which led to invalid ranges and underflow when asking for a non-zero base layer with a (non-array) 2d texture.
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cwfitzgerald
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Aug 13, 2022
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Back with some more validation fixes.
Checklist
cargo clippy.Connections
https://bugzilla.mozilla.org/show_bug.cgi?id=1780057
Description
The previous code was doing "selector.layers = base_layer .. count" instead of "base_layer .. base_layer + count" which looked dubious. Same thing for the mip range. It was also not taking the base layer count when in requested_layer_count when the texture was not a texture array which led to invalid ranges and underflow when asking for a non-zero base layer with a (non-array) 2d texture.
The fix consists in:
base .. base + countTesting
None