From d7423a653175352c5e2017f1de647bc7ef5ede43 Mon Sep 17 00:00:00 2001 From: Kenneth Graunke Date: Fri, 17 Dec 2010 19:25:37 -0800 Subject: [PATCH] glsl/builtins: Compute the correct value for smoothstep(vec, vec, vec). These mistakenly computed 't' instead of t * t * (3.0 - 2.0 * t). Also, properly vectorize the smoothstep(float, float, vec) variants. NOTE: This is a candidate for the 7.9 and 7.10 branches. --- src/glsl/builtins/ir/smoothstep | 121 +++++++++++----------------------------- 1 file changed, 34 insertions(+), 87 deletions(-) diff --git a/src/glsl/builtins/ir/smoothstep b/src/glsl/builtins/ir/smoothstep index 0164219..b283f73 100644 --- a/src/glsl/builtins/ir/smoothstep +++ b/src/glsl/builtins/ir/smoothstep @@ -5,40 +5,26 @@ (declare (in) float edge1) (declare (in) float x)) ((declare () float t) - (assign (constant bool (1)) (x) (var_ref t) (expression float max (expression float min (expression float / (expression float - (var_ref x) (var_ref edge0)) (expression float - (var_ref edge1) (var_ref edge0))) (constant float (1.0))) (constant float (0.0)))) - (return (expression float * (var_ref t) (expression float * (var_ref t) (expression float - (constant float (3.000000)) (expression float * (constant float (2.000000)) (var_ref t)))))))) - + (return (expression float * (var_ref t) (expression float * (var_ref t) (expression float - (constant float (3.0)) (expression float * (constant float (2.0)) (var_ref t)))))))) (signature vec2 (parameters (declare (in) float edge0) (declare (in) float edge1) (declare (in) vec2 x)) ((declare () vec2 t) - (declare () vec2 retval) - - (assign (constant bool (1)) (x) (var_ref t) - (expression float max - (expression float min - (expression float / (expression float - (swiz x (var_ref x)) (var_ref edge0)) (expression float - (var_ref edge1) (var_ref edge0))) + (assign (constant bool (1)) (xy) (var_ref t) + (expression vec2 max + (expression vec2 min + (expression vec2 / (expression vec2 - (var_ref x) (var_ref edge0)) (expression float - (var_ref edge1) (var_ref edge0))) (constant float (1.0))) (constant float (0.0)))) - (assign (constant bool (1)) (x) (var_ref retval) (expression float * (swiz x (var_ref t)) (expression float * (swiz x (var_ref t)) (expression float - (constant float (3.000000)) (expression float * (constant float (2.000000)) (swiz x (var_ref t))))))) - - (assign (constant bool (1)) (y) (var_ref t) - (expression float max - (expression float min - (expression float / (expression float - (swiz y (var_ref x)) (var_ref edge0)) (expression float - (var_ref edge1) (var_ref edge0))) - (constant float (1.0))) - (constant float (0.0)))) - (assign (constant bool (1)) (y) (var_ref retval) (expression float * (swiz y (var_ref t)) (expression float * (swiz y (var_ref t)) (expression float - (constant float (3.000000)) (expression float * (constant float (2.000000)) (swiz y (var_ref t))))))) - (return (var_ref retval)) - )) + (return (expression vec2 * (var_ref t) (expression vec2 * (var_ref t) (expression vec2 - (constant float (3.0)) (expression vec2 * (constant float (2.0)) (var_ref t)))))))) (signature vec3 (parameters @@ -46,33 +32,13 @@ (declare (in) float edge1) (declare (in) vec3 x)) ((declare () vec3 t) - (declare () vec3 retval) - - (assign (constant bool (1)) (x) (var_ref t) - (expression float max - (expression float min - (expression float / (expression float - (swiz x (var_ref x)) (var_ref edge0)) (expression float - (var_ref edge1) (var_ref edge0))) - (constant float (1.0))) - (constant float (0.0)))) - (assign (constant bool (1)) (x) (var_ref retval) (expression float * (swiz x (var_ref t)) (expression float * (swiz x (var_ref t)) (expression float - (constant float (3.000000)) (expression float * (constant float (2.000000)) (swiz x (var_ref t))))))) - - (assign (constant bool (1)) (y) (var_ref t) - (expression float max - (expression float min - (expression float / (expression float - (swiz y (var_ref x)) (var_ref edge0)) (expression float - (var_ref edge1) (var_ref edge0))) + (assign (constant bool (1)) (xyz) (var_ref t) + (expression vec3 max + (expression vec3 min + (expression vec3 / (expression vec3 - (var_ref x) (var_ref edge0)) (expression float - (var_ref edge1) (var_ref edge0))) (constant float (1.0))) (constant float (0.0)))) - (assign (constant bool (1)) (y) (var_ref retval) (expression float * (swiz y (var_ref t)) (expression float * (swiz y (var_ref t)) (expression float - (constant float (3.000000)) (expression float * (constant float (2.000000)) (swiz y (var_ref t))))))) - - (assign (constant bool (1)) (z) (var_ref t) - (expression float max - (expression float min - (expression float / (expression float - (swiz z (var_ref x)) (var_ref edge0)) (expression float - (var_ref edge1) (var_ref edge0))) - (constant float (1.0))) - (constant float (0.0)))) - (assign (constant bool (1)) (z) (var_ref retval) (expression float * (swiz z (var_ref t)) (expression float * (swiz z (var_ref t)) (expression float - (constant float (3.000000)) (expression float * (constant float (2.000000)) (swiz z (var_ref t))))))) - (return (var_ref retval)) - )) + (return (expression vec3 * (var_ref t) (expression vec3 * (var_ref t) (expression vec3 - (constant float (3.0)) (expression vec3 * (constant float (2.0)) (var_ref t)))))))) (signature vec4 @@ -81,73 +47,54 @@ (declare (in) float edge1) (declare (in) vec4 x)) ((declare () vec4 t) - (declare () vec4 retval) - - (assign (constant bool (1)) (x) (var_ref t) - (expression float max - (expression float min - (expression float / (expression float - (swiz x (var_ref x)) (var_ref edge0)) (expression float - (var_ref edge1) (var_ref edge0))) - (constant float (1.0))) - (constant float (0.0)))) - (assign (constant bool (1)) (x) (var_ref retval) (expression float * (swiz x (var_ref t)) (expression float * (swiz x (var_ref t)) (expression float - (constant float (3.000000)) (expression float * (constant float (2.000000)) (swiz x (var_ref t))))))) - - (assign (constant bool (1)) (y) (var_ref t) - (expression float max - (expression float min - (expression float / (expression float - (swiz y (var_ref x)) (var_ref edge0)) (expression float - (var_ref edge1) (var_ref edge0))) + (assign (constant bool (1)) (xyzw) (var_ref t) + (expression vec4 max + (expression vec4 min + (expression vec4 / (expression vec4 - (var_ref x) (var_ref edge0)) (expression float - (var_ref edge1) (var_ref edge0))) (constant float (1.0))) (constant float (0.0)))) - (assign (constant bool (1)) (y) (var_ref retval) (expression float * (swiz y (var_ref t)) (expression float * (swiz y (var_ref t)) (expression float - (constant float (3.000000)) (expression float * (constant float (2.000000)) (swiz y (var_ref t))))))) - - (assign (constant bool (1)) (z) (var_ref t) - (expression float max - (expression float min - (expression float / (expression float - (swiz z (var_ref x)) (var_ref edge0)) (expression float - (var_ref edge1) (var_ref edge0))) - (constant float (1.0))) - (constant float (0.0)))) - (assign (constant bool (1)) (z) (var_ref retval) (expression float * (swiz z (var_ref t)) (expression float * (swiz z (var_ref t)) (expression float - (constant float (3.000000)) (expression float * (constant float (2.000000)) (swiz z (var_ref t))))))) - - (assign (constant bool (1)) (w) (var_ref t) - (expression float max - (expression float min - (expression float / (expression float - (swiz w (var_ref x)) (var_ref edge0)) (expression float - (var_ref edge1) (var_ref edge0))) - (constant float (1.0))) - (constant float (0.0)))) - (assign (constant bool (1)) (w) (var_ref retval) (expression float * (swiz w (var_ref t)) (expression float * (swiz w (var_ref t)) (expression float - (constant float (3.000000)) (expression float * (constant float (2.000000)) (swiz w (var_ref t))))))) - (return (var_ref retval)) - )) + (return (expression vec4 * (var_ref t) (expression vec4 * (var_ref t) (expression vec4 - (constant float (3.0)) (expression vec4 * (constant float (2.0)) (var_ref t)))))))) (signature vec2 (parameters (declare (in) vec2 edge0) (declare (in) vec2 edge1) (declare (in) vec2 x)) - ((return (expression vec2 max + ((declare () vec2 t) + (assign (constant bool (1)) (xy) (var_ref t) + (expression vec2 max (expression vec2 min (expression vec2 / (expression vec2 - (var_ref x) (var_ref edge0)) (expression vec2 - (var_ref edge1) (var_ref edge0))) - (constant vec2 (1.0 1.0))) - (constant vec2 (0.0 0.0)))))) + (constant float (1.0))) + (constant float (0.0)))) + (return (expression vec2 * (var_ref t) (expression vec2 * (var_ref t) (expression vec2 - (constant float (3.0)) (expression vec2 * (constant float (2.0)) (var_ref t)))))))) (signature vec3 (parameters (declare (in) vec3 edge0) (declare (in) vec3 edge1) (declare (in) vec3 x)) - ((return (expression vec3 max + ((declare () vec3 t) + (assign (constant bool (1)) (xyz) (var_ref t) + (expression vec3 max (expression vec3 min (expression vec3 / (expression vec3 - (var_ref x) (var_ref edge0)) (expression vec3 - (var_ref edge1) (var_ref edge0))) - (constant vec3 (1.0 1.0 1.0))) - (constant vec3 (0.0 0.0 0.0)))))) + (constant float (1.0))) + (constant float (0.0)))) + (return (expression vec3 * (var_ref t) (expression vec3 * (var_ref t) (expression vec3 - (constant float (3.0)) (expression vec3 * (constant float (2.0)) (var_ref t)))))))) (signature vec4 (parameters (declare (in) vec4 edge0) (declare (in) vec4 edge1) (declare (in) vec4 x)) - ((return (expression vec4 max + ((declare () vec4 t) + (assign (constant bool (1)) (xyzw) (var_ref t) + (expression vec4 max (expression vec4 min (expression vec4 / (expression vec4 - (var_ref x) (var_ref edge0)) (expression vec4 - (var_ref edge1) (var_ref edge0))) - (constant vec4 (1.0 1.0 1.0 1.0))) - (constant vec4 (0.0 0.0 0.0 0.0)))))) + (constant float (1.0))) + (constant float (0.0)))) + (return (expression vec4 * (var_ref t) (expression vec4 * (var_ref t) (expression vec4 - (constant float (3.0)) (expression vec4 * (constant float (2.0)) (var_ref t)))))))) )) -- 2.7.4