On Wed, 2010-01-06 at 00:50 -0800, michal wrote:
> diff --git a/src/gallium/drivers/svga/svga_tgsi.h
> b/src/gallium/drivers/svga/svga_tgsi.h
> index 896c90a..d132525 100644
> --- a/src/gallium/drivers/svga/svga_tgsi.h
> +++ b/src/gallium/drivers/svga/svga_tgsi.h
> @@ -39,24 +39,24 @@ struct tgsi_token;
>
> struct svga_vs_compile_key
> {
> - ubyte need_prescale:1;
> - ubyte allow_psiz:1;
> unsigned zero_stride_vertex_elements;
> - ubyte num_zero_stride_vertex_elements:6;
> + unsigned need_prescale:1;
> + unsigned allow_psiz:1;
> + unsigned num_zero_stride_vertex_elements:6;
> };
>
> struct svga_fs_compile_key
> {
> - boolean light_twoside:1;
> - boolean front_cw:1;
> + unsigned light_twoside:1;
> + unsigned front_cw:1;
> ubyte num_textures;
> ubyte num_unnormalized_coords;
> struct {
> - ubyte compare_mode : 1;
> - ubyte compare_func : 3;
> - ubyte unnormalized : 1;
> + unsigned compare_mode : 1;
> + unsigned compare_func : 3;
> + unsigned unnormalized : 1;
>
> - ubyte width_height_idx : 7;
> + unsigned width_height_idx : 7;
>
> ubyte texture_target;
> } tex[PIPE_MAX_SAMPLERS];
Michal, these two structs should be kept as small as possible. It looks
like there has been some drift away from well-packed fields anyway, but
if you're making this change can you please take a moment to repack the
fields as a result and get these down to as small as possible?
In particular, it looks like fs_compile_key::tex array has probably
doubled in size - could you repack it by changing texture_target to, eg:
unsigned texture_target:8;
or similar?
The same would apply for the other ubyte fields that are now probably no
longer tightly packed.
Keith
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