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Bug 1878930 - s/RawBuffer/Span/: TexImage: GetRangeFromData. r=gfx-reviewers,lsalzman

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Differential Revision: https://phabricator.services.mozilla.com/D202025
This commit is contained in:
Kelsey Gilbert
2024-02-29 00:37:29 +00:00
parent 73a4bedb0b
commit bace796669
1 changed files with 7 additions and 10 deletions
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17
dom/canvas/ClientWebGLContext.cpp
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@@ -4082,13 +4082,11 @@ Range<T> SubRange(const Range<T>& full, const size_t offset,
return Range<T>{newBegin, newBegin + length};
}
Maybe<Range<const uint8_t>> GetRangeFromData(const Span<uint8_t>& data,
size_t bytesPerElem,
GLuint elemOffset,
GLuint elemCountOverride) {
const auto byteRange = Range(data); // In bytes.
auto elemCount = byteRange.length() / bytesPerElem;
Maybe<Span<const uint8_t>> GetRangeFromData(const Span<uint8_t>& data,
size_t bytesPerElem,
GLuint elemOffset,
GLuint elemCountOverride) {
auto elemCount = data.size() / bytesPerElem;
if (elemOffset > elemCount) return {};
elemCount -= elemOffset;
@@ -4096,9 +4094,8 @@ Maybe<Range<const uint8_t>> GetRangeFromData(const Span<uint8_t>& data,
if (elemCountOverride > elemCount) return {};
elemCount = elemCountOverride;
}
const auto subrange =
SubRange(byteRange, elemOffset * bytesPerElem, elemCount * bytesPerElem);
return Some(subrange);
return Some(
data.subspan(elemOffset * bytesPerElem, elemCount * bytesPerElem));
}
// -