[Mesa-dev] [PATCH] mesa: disable on-disk shader cache unless supported by the driver

[Timothy Arceri]

On Thu, 2 Feb 2017 17:32:58 +1100
Timothy Arceri <tarceri at itsqueeze.com> wrote:

> On Thu,  2 Feb 2017 16:17:02 +1100
> Timothy Arceri <tarceri at itsqueeze.com> wrote:
> 
> > This will stop people enabling the shader cache on drivers that
> > don't support it via the env vars. Also this will be required once
> > support is enabled by default to stop drivers without support from
> > breaking.
> > ---
> >  src/mesa/main/context.c | 3 ++-
> >  src/mesa/main/mtypes.h  | 3 +++
> >  2 files changed, 5 insertions(+), 1 deletion(-)
> > 
> > diff --git a/src/mesa/main/context.c b/src/mesa/main/context.c
> > index 7ecd241..085cec9 100644
> > --- a/src/mesa/main/context.c
> > +++ b/src/mesa/main/context.c
> > @@ -1230,7 +1230,8 @@ _mesa_initialize_context(struct gl_context
> > *ctx, memset(&ctx->TextureFormatSupported, GL_TRUE,
> >  	  sizeof(ctx->TextureFormatSupported));
> >  
> > -   ctx->Cache = disk_cache_create();
> > +   if (ctx->Const.DiskShaderCache)  
> 
> Actually I think this gets set too late from the driver. I need to
> think about this some more.

Ok this patch is fine I just need to set DiskShaderCache before
_mesa_initialize_context() in the drivers that want to enable this
which should be fine. We do the same for driver functions.

> 
> 
> > +      ctx->Cache = disk_cache_create();
> >  
> >     switch (ctx->API) {
> >     case API_OPENGL_COMPAT:
> > diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
> > index 3dcc23d..8a0c180 100644
> > --- a/src/mesa/main/mtypes.h
> > +++ b/src/mesa/main/mtypes.h
> > @@ -3762,6 +3762,9 @@ struct gl_constants
> >  
> >     /** GL_OES_primitive_bounding_box */
> >     bool NoPrimitiveBoundingBoxOutput;
> > +
> > +   /** Does this driver support an on-disk shader cache */
> > +   bool DiskShaderCache;
> >  };
> >  
> >    
> 
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