Bug 26001 - [GLSL 1.10] constructing matrix from matrix succeeds
Summary: [GLSL 1.10] constructing matrix from matrix succeeds
Alias: None
Product: Mesa
Classification: Unclassified
Component: Mesa core (show other bugs)
Version: git
Hardware: All All
: low minor
Assignee: Ian Romanick
QA Contact:
Depends on:
Blocks: 29044
  Show dependency treegraph
Reported: 2010-01-11 23:48 UTC by Gordon Jin
Modified: 2010-08-18 19:43 UTC (History)
1 user (show)

See Also:
i915 platform:
i915 features:


Description Gordon Jin 2010-01-11 23:48:20 UTC
GLSL 1.10 spec section 5.3.2 says:
"It is an error to construct matrices from other matrices. This is reserved for future use."

But piglit/tests/glslparsertest/shaders/matrix.V110.frag (default #version 110) passes in mesa:

    mat4 m;
    mat4 m1 = mat4(m);

p.s. This is allowed in GLSL 1.20.
Comment 1 Eric Anholt 2010-08-17 08:41:50 UTC
Fixed with the glsl2 merge.
Comment 2 Gordon Jin 2010-08-18 19:43:36 UTC
verified with mesa master d442a01ac14382d83cdaac87d2832315ceb3e963.

Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.