[Mesa-dev] [PATCH 1/5] i965: Pass symbolic swizzle to brw_swizzle() as a single argument.

Iago Toral itoral at igalia.com
Mon Feb 29 14:48:28 UTC 2016


Reviewed-by: Iago Toral Quiroga <itoral at igalia.com>

On Fri, 2016-02-26 at 22:02 -0800, Francisco Jerez wrote:
> And replace brw_swizzle1() with brw_swizzle().  Seems slightly cleaner
> and will allow reusing brw_swizzle() in the vec4 back-end more easily.
> ---
>  src/mesa/drivers/dri/i965/brw_clip_unfilled.c |  6 ++++--
>  src/mesa/drivers/dri/i965/brw_clip_util.c     | 13 +++++++------
>  src/mesa/drivers/dri/i965/brw_eu_emit.c       |  2 +-
>  src/mesa/drivers/dri/i965/brw_reg.h           | 15 ++++-----------
>  4 files changed, 16 insertions(+), 20 deletions(-)
> 
> diff --git a/src/mesa/drivers/dri/i965/brw_clip_unfilled.c b/src/mesa/drivers/dri/i965/brw_clip_unfilled.c
> index 3c18858..d333d10 100644
> --- a/src/mesa/drivers/dri/i965/brw_clip_unfilled.c
> +++ b/src/mesa/drivers/dri/i965/brw_clip_unfilled.c
> @@ -85,8 +85,10 @@ static void compute_tri_direction( struct brw_clip_compile *c )
>     /* Take their crossproduct:
>      */
>     brw_set_default_access_mode(p, BRW_ALIGN_16);
> -   brw_MUL(p, vec4(brw_null_reg()), brw_swizzle(e, 1,2,0,3),  brw_swizzle(f,2,0,1,3));
> -   brw_MAC(p, vec4(e),  negate(brw_swizzle(e, 2,0,1,3)), brw_swizzle(f,1,2,0,3));
> +   brw_MUL(p, vec4(brw_null_reg()), brw_swizzle(e, BRW_SWIZZLE_YZXW),
> +           brw_swizzle(f, BRW_SWIZZLE_ZXYW));
> +   brw_MAC(p, vec4(e),  negate(brw_swizzle(e, BRW_SWIZZLE_ZXYW)),
> +           brw_swizzle(f, BRW_SWIZZLE_YZXW));
>     brw_set_default_access_mode(p, BRW_ALIGN_1);
>  
>     brw_MUL(p, c->reg.dir, c->reg.dir, vec4(e));
> diff --git a/src/mesa/drivers/dri/i965/brw_clip_util.c b/src/mesa/drivers/dri/i965/brw_clip_util.c
> index 7ef3305..3e6664e 100644
> --- a/src/mesa/drivers/dri/i965/brw_clip_util.c
> +++ b/src/mesa/drivers/dri/i965/brw_clip_util.c
> @@ -98,7 +98,8 @@ void brw_clip_project_position(struct brw_clip_compile *c, struct brw_reg pos )
>     /* value.xyz *= value.rhw
>      */
>     brw_set_default_access_mode(p, BRW_ALIGN_16);
> -   brw_MUL(p, brw_writemask(pos, WRITEMASK_XYZ), pos, brw_swizzle1(pos, W));
> +   brw_MUL(p, brw_writemask(pos, WRITEMASK_XYZ), pos,
> +           brw_swizzle(pos, BRW_SWIZZLE_WWWW));
>     brw_set_default_access_mode(p, BRW_ALIGN_1);
>  }
>  
> @@ -194,11 +195,11 @@ void brw_clip_interp_vertex( struct brw_clip_compile *c,
>        brw_set_default_access_mode(p, BRW_ALIGN_16);
>        brw_MOV(p,
>                brw_writemask(t_nopersp, WRITEMASK_ZW),
> -              brw_swizzle(tmp, 0, 1, 0, 1));
> +              brw_swizzle(tmp, BRW_SWIZZLE_XYXY));
>  
>        /* t_nopersp = vec4(v1.xy, dest.xy) - v0.xyxy */
>        brw_ADD(p, t_nopersp, t_nopersp,
> -              negate(brw_swizzle(v0_ndc_copy, 0, 1, 0, 1)));
> +              negate(brw_swizzle(v0_ndc_copy, BRW_SWIZZLE_XYXY)));
>  
>        /* Add the absolute values of the X and Y deltas so that if
>         * the points aren't in the same place on the screen we get
> @@ -212,8 +213,8 @@ void brw_clip_interp_vertex( struct brw_clip_compile *c,
>         */
>        brw_ADD(p,
>                brw_writemask(t_nopersp, WRITEMASK_XY),
> -              brw_abs(brw_swizzle(t_nopersp, 0, 2, 0, 0)),
> -              brw_abs(brw_swizzle(t_nopersp, 1, 3, 0, 0)));
> +              brw_abs(brw_swizzle(t_nopersp, BRW_SWIZZLE_XZXZ)),
> +              brw_abs(brw_swizzle(t_nopersp, BRW_SWIZZLE_YWYW)));
>        brw_set_default_access_mode(p, BRW_ALIGN_1);
>  
>        /* If the points are in the same place, just substitute a
> @@ -234,7 +235,7 @@ void brw_clip_interp_vertex( struct brw_clip_compile *c,
>        brw_MUL(p, vec1(t_nopersp), vec1(t_nopersp),
>              vec1(suboffset(t_nopersp, 1)));
>        brw_set_default_access_mode(p, BRW_ALIGN_16);
> -      brw_MOV(p, t_nopersp, brw_swizzle(t_nopersp, 0, 0, 0, 0));
> +      brw_MOV(p, t_nopersp, brw_swizzle(t_nopersp, BRW_SWIZZLE_XXXX));
>        brw_set_default_access_mode(p, BRW_ALIGN_1);
>  
>        release_tmp(c, tmp);
> diff --git a/src/mesa/drivers/dri/i965/brw_eu_emit.c b/src/mesa/drivers/dri/i965/brw_eu_emit.c
> index 35d8039..2e4d7be 100644
> --- a/src/mesa/drivers/dri/i965/brw_eu_emit.c
> +++ b/src/mesa/drivers/dri/i965/brw_eu_emit.c
> @@ -3399,7 +3399,7 @@ brw_broadcast(struct brw_codegen *p,
>            */
>           inst = brw_MOV(p,
>                          brw_null_reg(),
> -                        stride(brw_swizzle1(idx, 0), 0, 4, 1));
> +                        stride(brw_swizzle(idx, BRW_SWIZZLE_XXXX), 0, 4, 1));
>           brw_inst_set_pred_control(devinfo, inst, BRW_PREDICATE_NONE);
>           brw_inst_set_cond_modifier(devinfo, inst, BRW_CONDITIONAL_NZ);
>           brw_inst_set_flag_reg_nr(devinfo, inst, 1);
> diff --git a/src/mesa/drivers/dri/i965/brw_reg.h b/src/mesa/drivers/dri/i965/brw_reg.h
> index a2a4a40..a4bcfca 100644
> --- a/src/mesa/drivers/dri/i965/brw_reg.h
> +++ b/src/mesa/drivers/dri/i965/brw_reg.h
> @@ -81,7 +81,9 @@ struct brw_device_info;
>  #define BRW_SWIZZLE_ZZZZ      BRW_SWIZZLE4(2,2,2,2)
>  #define BRW_SWIZZLE_WWWW      BRW_SWIZZLE4(3,3,3,3)
>  #define BRW_SWIZZLE_XYXY      BRW_SWIZZLE4(0,1,0,1)
> +#define BRW_SWIZZLE_XZXZ      BRW_SWIZZLE4(0,2,0,2)
>  #define BRW_SWIZZLE_YZXW      BRW_SWIZZLE4(1,2,0,3)
> +#define BRW_SWIZZLE_YWYW      BRW_SWIZZLE4(1,3,1,3)
>  #define BRW_SWIZZLE_ZXYW      BRW_SWIZZLE4(2,0,1,3)
>  #define BRW_SWIZZLE_ZWZW      BRW_SWIZZLE4(2,3,2,3)
>  #define BRW_SWIZZLE_WZYX      BRW_SWIZZLE4(3,2,1,0)
> @@ -871,24 +873,15 @@ get_element_d(struct brw_reg reg, unsigned elt)
>     return vec1(suboffset(retype(reg, BRW_REGISTER_TYPE_D), elt));
>  }
>  
> -
>  static inline struct brw_reg
> -brw_swizzle(struct brw_reg reg, unsigned x, unsigned y, unsigned z, unsigned w)
> +brw_swizzle(struct brw_reg reg, unsigned swz)
>  {
>     assert(reg.file != BRW_IMMEDIATE_VALUE);
>  
> -   reg.swizzle = brw_compose_swizzle(BRW_SWIZZLE4(x, y, z, w),
> -                                              reg.swizzle);
> +   reg.swizzle = brw_compose_swizzle(swz, reg.swizzle);
>     return reg;
>  }
>  
> -
> -static inline struct brw_reg
> -brw_swizzle1(struct brw_reg reg, unsigned x)
> -{
> -   return brw_swizzle(reg, x, x, x, x);
> -}
> -
>  static inline struct brw_reg
>  brw_writemask(struct brw_reg reg, unsigned mask)
>  {




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