skia2/tests/sksl/errors/MatrixToVectorCast3x3.glsl

### Compilation failed:

error: 4: 'half3x3' is not a valid parameter to 'half' constructor; use '[0][0]' instead
error: 5: 'half3x3' is not a valid parameter to 'half2' constructor
error: 6: 'half3x3' is not a valid parameter to 'half3' constructor
error: 7: 'half3x3' is not a valid parameter to 'half4' constructor
4 errors
Add support for matrix-to-vector conversions in SkSL. GLSL supports casting vec4 into mat2 and vice versa, so SkSL should have equivalent support. This CL allows the Compound constructor to take a matrix as input, and fixes up backends to do the right thing when a matrix shows up in the compound-constructor path. Change-Id: I13289ad0a27ba59bddc3706093820594efebc693 Bug: skia:12067 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/426003 Auto-Submit: John Stiles <johnstiles@google.com> Reviewed-by: Brian Osman <brianosman@google.com> Commit-Queue: John Stiles <johnstiles@google.com> 2021-07-09 16:41:55 +00:00			`### Compilation failed:`

Add hints to slicing-constructor error messages. This is intended to make it easier for users porting GLSL code with slicing constructors; the error message should make it clear that a swizzle can be used here instead. Change-Id: Ib03276ee910dfffd6146717dbd347b058f9940d1 Bug: skia:12193 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/427200 Auto-Submit: John Stiles <johnstiles@google.com> Reviewed-by: Brian Osman <brianosman@google.com> Commit-Queue: John Stiles <johnstiles@google.com> 2021-07-13 13:18:57 +00:00			`error: 4: 'half3x3' is not a valid parameter to 'half' constructor; use '[0][0]' instead`
Add support for matrix-to-vector conversions in SkSL. GLSL supports casting vec4 into mat2 and vice versa, so SkSL should have equivalent support. This CL allows the Compound constructor to take a matrix as input, and fixes up backends to do the right thing when a matrix shows up in the compound-constructor path. Change-Id: I13289ad0a27ba59bddc3706093820594efebc693 Bug: skia:12067 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/426003 Auto-Submit: John Stiles <johnstiles@google.com> Reviewed-by: Brian Osman <brianosman@google.com> Commit-Queue: John Stiles <johnstiles@google.com> 2021-07-09 16:41:55 +00:00			`error: 5: 'half3x3' is not a valid parameter to 'half2' constructor`
			`error: 6: 'half3x3' is not a valid parameter to 'half3' constructor`
			`error: 7: 'half3x3' is not a valid parameter to 'half4' constructor`
			`4 errors`