Failures in the dEQP shader link tests

[GoogleCodeExporter]

We have a few bugs here, which resolve to issues with struct handling, as well 
as some extra validation we need to do. This also addresses issue 
chromium:391957.

Original issue reported on code.google.com by jmad...@chromium.org on 9 Feb 2015 at 9:41

[GoogleCodeExporter]

Issue chromium:462968 has been merged into this issue.

Original comment by kbr@chromium.org on 6 Mar 2015 at 9:30

[GoogleCodeExporter]

We pass all of the GLES2 link tests, but for

dEQP-GLES3.functional.shaders.linkage.varying.struct.float_vec3
dEQP-GLES3.functional.shaders.linkage.varying.struct.float_uvec2_vec3

we get errors of the kind:

(124,27-37): error X4503: output TEXCOORD2 used more than once

Warning: D3D shader compilation failed with default flags.
 Retrying with skip validation.

(124,27-37): error X4503: output TEXCOORD2 used more than once

Warning: D3D shader compilation failed with skip validation flags.
 Retrying with skip optimization.

(124,27-37): error X4503: output TEXCOORD2 used more than once

Warning: D3D shader compilation failed with skip optimization flags.
(157,27-37): error X3536: Duplicated input semantics can't change type, size, 
or layout ('TEXCOORD0').

Warning: D3D shader compilation failed with default flags.
 Retrying with skip validation.

Original comment by jmad...@chromium.org on 23 Apr 2015 at 7:59

• Changed state: Accepted