[Mesa-dev] [PATCH 1/6] mesa: Add field gl_renderbuffer.Unwrapped

[Ian Romanick]

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On 06/16/2011 10:26 AM, Chad Versace wrote:
> I've observed mysterious behaviour when writing to intel's stencil
> buffer through a memory mapped pointer. It's seems that the hardware
> fails to recognize that the writes ever occurred. (Writes via
> rendering work fine).  I still need to investigate the problem
> further, but perhaps GL_ARB_shader_stencil_export is what the intel
> driver needs to work around this problem.

Unfortunately, I don't think any of our shipping hardware supports it.
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