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authorKenneth Graunke <kenneth@whitecape.org>2010-09-01 16:10:01 -0700
committerKenneth Graunke <kenneth@whitecape.org>2010-09-01 18:57:51 -0700
commit39605587951aed546c14febcc26e5a479bf8d807 (patch)
treeda80c5384cf40a1de03f46152628e36dd5f340bb /src/gallium
parent54b35e673596d767a13f06f4d7ec1089e18fd46e (diff)
glsl: Fix write mask in matrix-from-matrix constructors.
If the matrix being constructed was larger than the source matrix, it would overwrite the lower-right part of the matrix with the wrong values, rather than leaving it as the identity matrix. For example, constructing a mat4 from a mat2 should only use a writemask of "xy" when copying from the source, but was using "xyzw". Fixes the code generated by piglit test constructor-23.vert.
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