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mesa/shaderapi: Allow 0 GEOMETRY_VERTICES_OUT.

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ARB_geometry_shader4 spec Errors:
"The error INVALID_VALUE is generated by ProgramParameteriARB if <pname>
is GEOMETRY_VERTICES_OUT_ARB and <value> is negative."

Reviewed-by: Paul Berry <stereotype441@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Fabian Bieler
2013-05-30 00:17:42 +02:00
committed by Paul Berry
parent 72219acf6b
commit 39ca58192b
1 changed files with 1 additions and 1 deletions
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src/mesa/main/shaderapi.c
+1 -1
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@@ -1634,7 +1634,7 @@ _mesa_ProgramParameteri(GLuint program, GLenum pname, GLint value)
if (!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_geometry_shader4)
break;
if (value < 1 ||
if (value < 0 ||
(unsigned) value > ctx->Const.MaxGeometryOutputVertices) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glProgramParameteri(GL_GEOMETRY_VERTICES_OUT_ARB=%d)",