glsl: Add front-end support for the "trunc" built-in.

diff --git a/src/glsl/builtins/ir/trunc b/src/glsl/builtins/ir/trunc
new file mode 100644 (file)
index 0000000..d320a2a
--- /dev/null
+++ b/src/glsl/builtins/ir/trunc
@@ -0,0 +1,21 @@
+((function trunc
+   (signature float
+     (parameters
+       (declare (in) float arg0))
+     ((return (expression float trunc (var_ref arg0)))))
+
+   (signature vec2
+     (parameters
+       (declare (in) vec2 arg0))
+     ((return (expression vec2 trunc (var_ref arg0)))))
+
+   (signature vec3
+     (parameters
+       (declare (in) vec3 arg0))
+     ((return (expression vec3 trunc (var_ref arg0)))))
+
+   (signature vec4
+     (parameters
+       (declare (in) vec4 arg0))
+     ((return (expression vec4 trunc (var_ref arg0)))))
+))

diff --git a/src/glsl/builtins/profiles/130.frag b/src/glsl/builtins/profiles/130.frag
index aa7a6adb1d7908341194778d93c9eaa5225ba51c..51ee35ec0908e1204df9cfa30f13091cbbe6692b 100644 (file)
--- a/src/glsl/builtins/profiles/130.frag
+++ b/src/glsl/builtins/profiles/130.frag
@@ -143,6 +143,11 @@ vec2  floor(vec2  x);
 vec3  floor(vec3  x);
 vec4  floor(vec4  x);
 
+float trunc(float x);
+vec2  trunc(vec2  x);
+vec3  trunc(vec3  x);
+vec4  trunc(vec4  x);
+
 float ceil(float x);
 vec2  ceil(vec2  x);
 vec3  ceil(vec3  x);

diff --git a/src/glsl/builtins/profiles/130.vert b/src/glsl/builtins/profiles/130.vert
index d0152b03748ad497cdf7cc9375e4d44313464015..d5674c27e2c96e937a08fac6343613b08fb3a468 100644 (file)
--- a/src/glsl/builtins/profiles/130.vert
+++ b/src/glsl/builtins/profiles/130.vert
@@ -143,6 +143,11 @@ vec2  floor(vec2  x);
 vec3  floor(vec3  x);
 vec4  floor(vec4  x);
 
+float trunc(float x);
+vec2  trunc(vec2  x);
+vec3  trunc(vec3  x);
+vec4  trunc(vec4  x);
+
 float ceil(float x);
 vec2  ceil(vec2  x);
 vec3  ceil(vec3  x);