← WebKit — 2026-W37
d0eee3fe1ac2b18fe25511062c4462c11a37ce56 [WebGPU] Very poor texture upload performance when passing canvas
not a security fix
confidence 0.12
signal score 11.49
Source/WebGPU/
Classified as not security-relevant.
Triage note: Implements the GPU-resident path for WebGPU GPUQueue::copyExternalImageToTexture (wrapping IOSurfaces/CVPixelBuffers instead of CPU readback) plus a flipX/flipY correctness fix and refined YCbCr matrices. The cross-origin isOriginClean check is preserved, not added; this is feature implementation, not a security fix.
This commit was flagged by the signal scorer and reviewed by AI (not a human). It is listed only so the triage is auditable; there is no root-cause analysis because this is not a vulnerability fix.
Triage note: Implements the GPU-resident path for WebGPU GPUQueue::copyExternalImageToTexture (wrapping IOSurfaces/CVPixelBuffers instead of CPU readback) plus a flipX/flipY correctness fix and refined YCbCr matrices. The cross-origin isOriginClean check is preserved, not added; this is feature implementation, not a security fix.
This commit was flagged by the signal scorer and reviewed by AI (not a human). It is listed only so the triage is auditable; there is no root-cause analysis because this is not a vulnerability fix.
Structural signals: smartptr_member_added (+6.47), null_guard (+2.59), clamp_saturate (+2.92), area:Source/WebGPU/ (+1.5), large_churn (-2.0)
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