[Mesa-dev] [PATCH] added functions for binding atomic buffers to extension GL_ARB_shader_atomic_counters for radeonsi and r600 backend

[Marek Olšák]

Please see:

http://lists.freedesktop.org/archives/mesa-dev/2014-July/062818.html
http://lists.freedesktop.org/archives/mesa-dev/2014-July/063798.html

Also, your git username and address are wrong. You can set them with git config.

Marek

On Wed, Jul 23, 2014 at 8:27 PM, Aditya Atluri <adityaavinash1 at gmail.com> wrote:
> From: Frost <frost at ubuntu.(none)>
>
> ---
>  src/mesa/main/bufferobj.c |   30 ++++++++++++++++++++++++++++++
>  1 file changed, 30 insertions(+)
>
> diff --git a/src/mesa/main/bufferobj.c b/src/mesa/main/bufferobj.c
> index 7b1bba0..00f2604 100644
> --- a/src/mesa/main/bufferobj.c
> +++ b/src/mesa/main/bufferobj.c
> @@ -832,6 +832,9 @@ _mesa_init_buffer_objects( struct gl_context *ctx )
>     _mesa_reference_buffer_object(ctx, &ctx->UniformBuffer,
>                                  ctx->Shared->NullBufferObj);
>
> +   _mesa_reference_buffer_object(ctx, &ctx->AtomicBuffer,
> +                 ctx->Shared->NullBufferObj);
> +
>     _mesa_reference_buffer_object(ctx, &ctx->DrawIndirectBuffer,
>                                  ctx->Shared->NullBufferObj);
>
> @@ -842,6 +845,14 @@ _mesa_init_buffer_objects( struct gl_context *ctx )
>        ctx->UniformBufferBindings[i].Offset = -1;
>        ctx->UniformBufferBindings[i].Size = -1;
>     }
> +
> +   for (i = 0; i < MAX_COMBINED_ATOMIC_BUFFERS; i++) {
> +      _mesa_reference_buffer_object(ctx,
> +                                    &ctx->AtomicBufferBindings[i].BufferObject,
> +                                    ctx->Shared->NullBufferObj);
> +      ctx->AtomicBufferBindings[i].Offset = -1;
> +      ctx->AtomicBufferBindings[i].Size = -1;
> +   }
>  }
>
>
> @@ -857,6 +868,8 @@ _mesa_free_buffer_objects( struct gl_context *ctx )
>
>     _mesa_reference_buffer_object(ctx, &ctx->UniformBuffer, NULL);
>
> +   _mesa_reference_buffer_object(ctx, &ctx->AtomicBuffer, NULL);
> +
>     _mesa_reference_buffer_object(ctx, &ctx->DrawIndirectBuffer, NULL);
>
>     for (i = 0; i < MAX_COMBINED_UNIFORM_BUFFERS; i++) {
> @@ -864,6 +877,12 @@ _mesa_free_buffer_objects( struct gl_context *ctx )
>                                     &ctx->UniformBufferBindings[i].BufferObject,
>                                     NULL);
>     }
> +
> +   for (i = 0; i < MAX_COMBINED_ATOMIC_BUFFERS; i++) {
> +      _mesa_reference_buffer_object(ctx,
> +                                    &ctx->AtomicBufferBindings[i].BufferObject,
> +                                    NULL);
> +   }
>  }
>
>  bool
> @@ -1200,6 +1219,17 @@ _mesa_DeleteBuffers(GLsizei n, const GLuint *ids)
>              _mesa_BindBuffer( GL_UNIFORM_BUFFER, 0 );
>           }
>
> +         /* unbind Atomic Buffers binding points */
> +         for (j = 0; j < ctx->Const.MaxAtomicBufferBindings; j++) {
> +             if (ctx->AtomicBufferBindings[j].BufferObject == bufObj) {
> +                 _mesa_BindBufferBase( GL_ATOMIC_COUNTER_BUFFER, j, 0 );
> +             }
> +         }
> +
> +         if (ctx->AtomicBuffer == bufObj) {
> +            _mesa_BindBuffer(GL_ATOMIC_COUNTER_BUFFER, 0);
> +         }
> +
>           /* unbind any pixel pack/unpack pointers bound to this buffer */
>           if (ctx->Pack.BufferObj == bufObj) {
>              _mesa_BindBuffer( GL_PIXEL_PACK_BUFFER_EXT, 0 );
> --
> 1.7.9.5
>
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