With skia-review.googlesource.com/c/skia/+/363782, both cpu and gpu
backends would gracefully fail readPixel requests where dst row bytes
wasn't a multiple of dst bpp. It also updated the cpu backend's
writePixels behavior to gracefully reject writePixels requests where
the src row bytes wasn't a multiple of src bpp.
GPU writePixels would not detect this and later trigger an assert
in debug builds in GrConvertPixels (caught by the linked fuzzer bug).
This adds tests to mirror the read pixels bad-row-bytes tests and
updates GrSurfaceContext::writePixels to check src row bytes vs. bpp.
I confirmed it fixes the fuzzer crash.
Bug: chromium:1185266
Change-Id: I7cd8406c65a9ba35a55d695b2f65410a1edd2a19
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/382276
Auto-Submit: Michael Ludwig <michaelludwig@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Previously this would report success but may have rounded the
rowbytes down to a multiple of bpp prior to writing the dst.
On GPU it could trigger an assert in a debug build.
Bug: chromium:1163061
Change-Id: I19709f4cdb71139732998a4dd2e14476099f0ba8
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/363782
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Mike Reed <reed@google.com>
This reverts commit 237911a4d8.
Reason for revert: timeouts
Original change's description:
> Add more comprehensive test for GPU write pixels.
>
> Similar to existing SurfaceContextReadPixels but for writes. Tries all
> combinations of src/dst color type and alpha type for write pixels.
> Always reads back pixels for verification using the ImageInfo of the
> tested surface context.
>
> Bug: skia:8862
> Bug: skia:11130
>
> Change-Id: Id01f6aa511f00c4be47c32746dca872368cd5d82
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/348886
> Commit-Queue: Brian Salomon <bsalomon@google.com>
> Reviewed-by: Greg Daniel <egdaniel@google.com>
TBR=egdaniel@google.com,bsalomon@google.com
Change-Id: I5498be0b20604e520ad887898695a81ca82936ca
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:8862
Bug: skia:11130
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/350559
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
Similar to existing SurfaceContextReadPixels but for writes. Tries all
combinations of src/dst color type and alpha type for write pixels.
Always reads back pixels for verification using the ImageInfo of the
tested surface context.
Bug: skia:8862
Bug: skia:11130
Change-Id: Id01f6aa511f00c4be47c32746dca872368cd5d82
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/348886
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>
