GLSL fixes:

- generate error on NULL pointers in glShaderSourceARB;
- reinstall program object, if current, in glLinkProgramARB;
- vertex and fragment shaders are optional in program object;
- floor asm was wrongly computed for x86 back-end;
- allow for (void) idiom in function prototypes;
- all fixed-state uniforms are updated;
- local variable initializers are working;
- implement texture* and shadow* functions for vertex processor;
- generate error if too many arguments in general constructor;
- trim unused data in general constructor;
- struct r-value field select was badly relocated;

Changes:
- add derived state gl_fog_attrib::_Scale;
- add derived state gl_light::_CosCutoffNeg;

1 files changed, 2 insertions, 2 deletions

diff --git a/src/mesa/tnl/t_vb_light.c b/src/mesa/tnl/t_vb_light.c
index d4c83189c2..4d360007a4 100644
--- a/src/mesa/tnl/t_vb_light.c
+++ b/src/mesa/tnl/t_vb_light.c
@@ -203,7 +203,7 @@ static GLboolean run_lighting( GLcontext *ctx,
    GLvector4f *input = ctx->_NeedEyeCoords ? VB->EyePtr : VB->ObjPtr;
    GLuint idx;
 
-   if (ctx->ShaderObjects.CurrentProgram != NULL)
+   if (ctx->ShaderObjects._VertexShaderPresent)
       return GL_TRUE;
 
    if (!ctx->Light.Enabled || ctx->VertexProgram._Enabled)
@@ -264,7 +264,7 @@ static void validate_lighting( GLcontext *ctx,
 {
    light_func *tab;
 
-   if (ctx->ShaderObjects.CurrentProgram != NULL)
+   if (ctx->ShaderObjects._VertexShaderPresent)
       return;
 
    if (!ctx->Light.Enabled || ctx->VertexProgram._Enabled)