Forums - Structs inside uniform blocks causing glLinkProgram to hang

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Structs inside uniform blocks causing glLinkProgram to hang
Maykin53
Join Date: 20 Jul 14
Posts: 10
Posted: Tue, 2014-09-23 07:17
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Hi,

I've verified that on Nexus 5, using structs inside a uniform block, like this:
 

struct DirectionalLight
{
vec4 diffuse;
vec4 specular;
vec4 direction;
};
 
layout (std140) uniform LightBlock
{
DirectionalLight dLight0;
DirectionalLight dLight1;
}
causes glLinkProgram to hang.
Doing either of the following fixes the problem:

1. changing from a uniform block to just standard uniforms
2. removing the structs from the uniform block and defining the vec4s in the block directly

It appears that the compiler does not like structs inside uniform blocks.
Are you able to confirm if this is a known issue on Nexus 5?
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Re: Structs inside uniform blocks causing glLinkProgram to hang
mhfeldma Moderator
Join Date: 29 Nov 12
Posts: 310
Posted: Wed, 2014-09-24 07:07
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We've verifed this problem and are working with our compiler team to evaluate and provide a fix or work around.

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Re: Structs inside uniform blocks causing glLinkProgram to hang
Maykin53
Join Date: 20 Jul 14
Posts: 10
Posted: Thu, 2014-09-25 05:11
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Thanks for the response. Is there an approximate time frame for a response from the compiler team?

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Re: Structs inside uniform blocks causing glLinkProgram to hang
mhfeldma Moderator
Join Date: 29 Nov 12
Posts: 310
Posted: Thu, 2014-09-25 07:02
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I'd expect about 2 weeks...

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