Revert "Extend SkCanvas matrix stack to be 4x4, but with (basically) the same public API."
This reverts commit 98bfcc7ff3af46d8a022873fabc7dee4e6a2ec42.
Reason for revert: Flutter hitting assert:
../../third_party/skia/src/core/SkCanvas.cpp:1432: fatal error: "assert(fIsScaleTranslate == fMCRec->fMatrix.isScaleTranslate())"
Original change's description:
> Extend SkCanvas matrix stack to be 4x4, but with (basically) the same public API.
>
> Devices receive the 4x4, but by default they simply downsample it to SkMatrix.
>
> New SkM44 matrix for the impl. It differs from SkMatrix44 in a few ways
> - no tracking of "type"
> - faster for concat, as it does not use doubles for intermediates
> - much simpler API
>
> There are some low-bit differences in some gms, so adding a flag for clients to
> stage this change. (due to faster but lower-precision in SkM44::concat)
>
> Performance: running canvas_matrix bench
>
> 3x3 version:
>
> 167.93 canvas_matrix_3x3 8888
> 209.97 canvas_matrix_2x3 8888
> 174.87 canvas_matrix_scale 8888
> 135.30 canvas_matrix_trans 8888
>
> 4x4 version:
>
> 116.59 canvas_matrix_3x3 8888
> 105.40 canvas_matrix_2x3 8888
> 159.83 ? canvas_matrix_scale 8888
> 113.47 canvas_matrix_trans 8888
>
> Why faster?
> - not tracking matrix_type helps a lot it seems
> - faster full concat (no doubles)
>
> Before adding the specialized preConcats...
>
> 318.11 ? canvas_matrix_3x3 8888
> 339.38 canvas_matrix_2x3 8888
> 383.28 canvas_matrix_scale 8888
> 251.67 canvas_matrix_trans 8888
>
> Change-Id: I68eac942919fa5418081e789f31710a1e2a752da
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/262056
> Reviewed-by: Brian Salomon <bsalomon@google.com>
> Reviewed-by: Florin Malita <fmalita@chromium.org>
> Commit-Queue: Mike Reed <reed@google.com>
TBR=mtklein@google.com,bsalomon@google.com,herb@google.com,fmalita@chromium.org,fmalita@google.com,reed@google.com,michaelludwig@google.com
Change-Id: I28c3d69c19ba44ab65ca7c059221b64c7dffef22
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/263021
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
12 files changed