On 07/09/2014 03:10 PM, Matthew McClure wrote:
I reproduced Brian's issue with the NVIDIA drivers. Below is a list of the
configurations I ran:
GeForce GTX 650
* Ubuntu NVIDIA 304.88 - Allocation of Variable[GL_MAX_VARYING_FLOATS]
succeeded, VBO usage succeeds.
* Ubuntu NVIDIA 331.89 - Allocation of Variable[GL_MAX_VARYING_FLOATS] fails
with the following message:
0(2) : error C5041: cannot locate suitable resource to bind variable
"Variable". Possibly large array.
GeForce GT 740M
* Windows 8.1 NVIDIA 332.88 - Allocation of Variable[GL_MAX_VARYING_FLOATS]
succeeded, VBO usage fails.
Due to the issues above, I clamped the return value of GL_MAX_VARYING_FLOATS to 32 and only used immediate
mode rendering with one attribute. A developer can disable varying floats clamping by specifying the command
line argument "-dontClampMaxVaryings". A developer can also re-enable different draw paths using
command line arguments "-drawArraysVBO" or "-drawElementsVBO".
Below is an updated patch to address the issues, as they are not a blocking
issue for the test to be useful.
OK, the test passes now with my nvidia driver, softpipe, llvmpipe and svga.
A couple more comments on the code.
1. Some of the static, initialized arrays could be const-qualified. Not
a big deal though.
2. The standard indentation practice is to use 8-space tabs.
-Brian
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