19-20 Reviewed-by: Jordan Justen <jordan.l.jus...@intel.com>
On 2015-06-03 00:01:10, Iago Toral Quiroga wrote:
> ---
> src/mesa/main/bufferobj.c | 37 +++++++++++++++++++++++++++++++++++++
> 1 file changed, 37 insertions(+)
>
> diff --git a/src/mesa/main/bufferobj.c b/src/mesa/main/bufferobj.c
> index fb5331e..4277880 100644
> --- a/src/mesa/main/bufferobj.c
> +++ b/src/mesa/main/bufferobj.c
> @@ -3157,6 +3157,40 @@ bind_buffer_range_uniform_buffer(struct gl_context
> *ctx,
> bind_uniform_buffer(ctx, index, bufObj, offset, size, GL_FALSE);
> }
>
> +/**
> + * Bind a region of a buffer object to a shader storage block binding point.
> + * \param index the shader storage buffer binding point index
> + * \param bufObj the buffer object
> + * \param offset offset to the start of buffer object region
> + * \param size size of the buffer object region
> + */
> +static void
> +bind_buffer_range_shader_storage_buffer(struct gl_context *ctx,
> + GLuint index,
> + struct gl_buffer_object *bufObj,
> + GLintptr offset,
> + GLsizeiptr size)
> +{
> + if (index >= ctx->Const.MaxShaderStorageBufferBindings) {
> + _mesa_error(ctx, GL_INVALID_VALUE, "glBindBufferRange(index=%d)",
> index);
> + return;
> + }
> +
> + if (offset & (ctx->Const.ShaderStorageBufferOffsetAlignment - 1)) {
> + _mesa_error(ctx, GL_INVALID_VALUE,
> + "glBindBufferRange(offset misaligned %d/%d)", (int) offset,
> + ctx->Const.ShaderStorageBufferOffsetAlignment);
> + return;
> + }
> +
> + if (bufObj == ctx->Shared->NullBufferObj) {
> + offset = -1;
> + size = -1;
> + }
> +
> + _mesa_reference_buffer_object(ctx, &ctx->ShaderStorageBuffer, bufObj);
> + bind_shader_storage_buffer(ctx, index, bufObj, offset, size, GL_FALSE);
> +}
>
> /**
> * Bind a buffer object to a uniform block binding point.
> @@ -4227,6 +4261,9 @@ _mesa_BindBufferRange(GLenum target, GLuint index,
> case GL_UNIFORM_BUFFER:
> bind_buffer_range_uniform_buffer(ctx, index, bufObj, offset, size);
> return;
> + case GL_SHADER_STORAGE_BUFFER:
> + bind_buffer_range_shader_storage_buffer(ctx, index, bufObj, offset,
> size);
> + return;
> case GL_ATOMIC_COUNTER_BUFFER:
> bind_atomic_buffer(ctx, index, bufObj, offset, size,
> "glBindBufferRange");
> --
> 1.9.1
>
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