From 1f3c7d968c4313dbb71bc93306556cc9292d06ef Mon Sep 17 00:00:00 2001
From: Ian Romanick <ian.d.romanick@intel.com>
Date: Wed, 1 Sep 2010 21:23:52 -0700
Subject: glsl2: Implement noise[1234] built-in functions using ir_unop_noise

---
 src/glsl/builtin_function.cpp | 281 ++++++++++++++++++++++++++++++++++--------
 1 file changed, 229 insertions(+), 52 deletions(-)

(limited to 'src/glsl/builtin_function.cpp')

diff --git a/src/glsl/builtin_function.cpp b/src/glsl/builtin_function.cpp
index 7e40cd7cc9..05b2bc4391 100644
--- a/src/glsl/builtin_function.cpp
+++ b/src/glsl/builtin_function.cpp
@@ -2054,82 +2054,259 @@ static const char *builtin_noise1 =
    "   (signature float\n"
    "     (parameters\n"
    "       (declare (in) float x))\n"
-   "     ((return (constant float (0)))))\n"
+   "     ((return (expression float noise (var_ref x)))))\n"
    "   (signature float\n"
    "     (parameters\n"
    "       (declare (in) vec2 x))\n"
-   "     ((return (constant float (0)))))\n"
+   "     ((return (expression float noise (var_ref x)))))\n"
    "   (signature float\n"
    "     (parameters\n"
    "       (declare (in) vec3 x))\n"
-   "     ((return (constant float (0)))))\n"
+   "     ((return (expression float noise (var_ref x)))))\n"
    "   (signature float\n"
    "     (parameters\n"
    "       (declare (in) vec4 x))\n"
-   "     ((return (constant float (0)))))\n"
+   "     ((return (expression float noise (var_ref x)))))\n"
    "))\n"
    ""
 ;
 static const char *builtin_noise2 =
    "((function noise2\n"
-   "   (signature vec2\n"
-   "     (parameters\n"
-   "       (declare (in) float x))\n"
-   "     ((return (constant vec2 (0 0)))))\n"
-   "   (signature vec2\n"
-   "     (parameters\n"
-   "       (declare (in) vec2 x))\n"
-   "     ((return (constant vec2 (0 0)))))\n"
-   "   (signature vec2\n"
-   "     (parameters\n"
-   "       (declare (in) vec3 x))\n"
-   "     ((return (constant vec2 (0 0)))))\n"
-   "   (signature vec2\n"
-   "     (parameters\n"
-   "       (declare (in) vec4 x))\n"
-   "     ((return (constant vec2 (0 0)))))\n"
+   "  (signature vec2\n"
+   "    (parameters (declare (in) vec4 p))\n"
+   "    (\n"
+   "      (declare () float a)\n"
+   "      (declare () float b)\n"
+   "      (declare () vec2 t)\n"
+   "\n"
+   "      (assign (constant bool (1)) (x) (var_ref a) (expression float noise (var_ref p)))\n"
+   "      (assign (constant bool (1)) (x) (var_ref b) (expression float noise (expression vec4 + (var_ref p) (constant vec4 (601.0 313.0 29.0 277.0)))))\n"
+   "      (assign (constant bool (1)) (x) (var_ref t) (swiz xx (var_ref a)))\n"
+   "      (assign (constant bool (1)) (y) (var_ref t) (swiz xx (var_ref b)))\n"
+   "      (return (var_ref t))\n"
+   "    ))\n"
+   "\n"
+   "  (signature vec2\n"
+   "    (parameters (declare (in) vec3 p))\n"
+   "    (\n"
+   "      (declare () float a)\n"
+   "      (declare () float b)\n"
+   "      (declare () vec2 t)\n"
+   "\n"
+   "      (assign (constant bool (1)) (x) (var_ref a) (expression float noise (var_ref p)))\n"
+   "      (assign (constant bool (1)) (x) (var_ref b) (expression float noise (expression vec3 + (var_ref p) (constant vec3 (601.0 313.0 29.0)))))\n"
+   "      (assign (constant bool (1)) (x) (var_ref t) (swiz xx (var_ref a)))\n"
+   "      (assign (constant bool (1)) (y) (var_ref t) (swiz xx (var_ref b)))\n"
+   "      (return (var_ref t))\n"
+   "    ))\n"
+   "\n"
+   "  (signature vec2\n"
+   "    (parameters\n"
+   "      (declare (in ) vec2 p)\n"
+   "    )\n"
+   "    (\n"
+   "      (declare () float a)\n"
+   "      (declare () float b)\n"
+   "      (declare () vec2 t)\n"
+   "\n"
+   "      (assign (constant bool (1)) (x) (var_ref a) (expression float noise (var_ref p)))\n"
+   "      (assign (constant bool (1)) (x) (var_ref b) (expression float noise (expression vec2 + (var_ref p) (constant vec2 (601.0 313.0)))))\n"
+   "      (assign (constant bool (1)) (x) (var_ref t) (swiz xx (var_ref a)))\n"
+   "      (assign (constant bool (1)) (y) (var_ref t) (swiz xx (var_ref b)))\n"
+   "      (return (var_ref t))\n"
+   "    ))\n"
+   "\n"
+   "  (signature vec2\n"
+   "    (parameters\n"
+   "      (declare (in ) float p)\n"
+   "    )\n"
+   "    (\n"
+   "      (declare () float a)\n"
+   "      (declare () float b)\n"
+   "      (declare () vec2 t)\n"
+   "\n"
+   "      (assign (constant bool (1)) (x) (var_ref a) (expression float noise (var_ref p)))\n"
+   "      (assign (constant bool (1)) (x) (var_ref b) (expression float noise (expression float + (var_ref p) (constant float (601.0)))))\n"
+   "      (assign (constant bool (1)) (x) (var_ref t) (swiz xx (var_ref a)))\n"
+   "      (assign (constant bool (1)) (y) (var_ref t) (swiz xx (var_ref b)))\n"
+   "      (return (var_ref t))\n"
+   "    ))\n"
    "))\n"
    ""
 ;
 static const char *builtin_noise3 =
    "((function noise3\n"
-   "   (signature vec3\n"
-   "     (parameters\n"
-   "       (declare (in) float x))\n"
-   "     ((return (constant vec3 (0 0 0)))))\n"
-   "   (signature vec3\n"
-   "     (parameters\n"
-   "       (declare (in) vec2 x))\n"
-   "     ((return (constant vec3 (0 0 0)))))\n"
-   "   (signature vec3\n"
-   "     (parameters\n"
-   "       (declare (in) vec3 x))\n"
-   "     ((return (constant vec3 (0 0 0)))))\n"
-   "   (signature vec3\n"
-   "     (parameters\n"
-   "       (declare (in) vec4 x))\n"
-   "     ((return (constant vec3 (0 0 0)))))\n"
+   "  (signature vec3\n"
+   "    (parameters (declare (in) vec4 p))\n"
+   "    (\n"
+   "      (declare () float a)\n"
+   "      (declare () float b)\n"
+   "      (declare () float c)\n"
+   "      (declare () vec3 t)\n"
+   "\n"
+   "      (assign (constant bool (1)) (x) (var_ref a) (expression float noise (var_ref p)))\n"
+   "      (assign (constant bool (1)) (x) (var_ref b) (expression float noise (expression vec4 + (var_ref p) (constant vec4 (601.0 313.0 29.0 277.0)))))\n"
+   "      (assign (constant bool (1)) (x) (var_ref c) (expression float noise (expression vec4 + (var_ref p) (constant vec4 (1559.0 113.0 1861.0 797.0)))))\n"
+   "\n"
+   "      (assign (constant bool (1)) (x) (var_ref t) (swiz xxx (var_ref a)))\n"
+   "      (assign (constant bool (1)) (y) (var_ref t) (swiz xxx (var_ref b)))\n"
+   "      (assign (constant bool (1)) (z) (var_ref t) (swiz xxx (var_ref c)))\n"
+   "      (return (var_ref t))\n"
+   "    ))\n"
+   "\n"
+   "  (signature vec3\n"
+   "    (parameters (declare (in) vec3 p))\n"
+   "    (\n"
+   "      (declare () float a)\n"
+   "      (declare () float b)\n"
+   "      (declare () float c)\n"
+   "      (declare () vec3 t)\n"
+   "\n"
+   "      (assign (constant bool (1)) (x) (var_ref a) (expression float noise (var_ref p)))\n"
+   "      (assign (constant bool (1)) (x) (var_ref b) (expression float noise (expression vec3 + (var_ref p) (constant vec3 (601.0 313.0 29.0)))))\n"
+   "      (assign (constant bool (1)) (x) (var_ref c) (expression float noise (expression vec3 + (var_ref p) (constant vec3 (1559.0 113.0 1861.0)))))\n"
+   "\n"
+   "      (assign (constant bool (1)) (x) (var_ref t) (swiz xxx (var_ref a)))\n"
+   "      (assign (constant bool (1)) (y) (var_ref t) (swiz xxx (var_ref b)))\n"
+   "      (assign (constant bool (1)) (z) (var_ref t) (swiz xxx (var_ref c)))\n"
+   "      (return (var_ref t))\n"
+   "    ))\n"
+   "\n"
+   "  (signature vec3\n"
+   "    (parameters (declare (in) vec2 p))\n"
+   "    (\n"
+   "      (declare () float a)\n"
+   "      (declare () float b)\n"
+   "      (declare () float c)\n"
+   "      (declare () vec3 t)\n"
+   "\n"
+   "      (assign (constant bool (1)) (x) (var_ref a) (expression float noise (var_ref p)))\n"
+   "      (assign (constant bool (1)) (x) (var_ref b) (expression float noise (expression vec2 + (var_ref p) (constant vec2 (601.0 313.0)))))\n"
+   "      (assign (constant bool (1)) (x) (var_ref c) (expression float noise (expression vec2 + (var_ref p) (constant vec2 (1559.0 113.0)))))\n"
+   "\n"
+   "      (assign (constant bool (1)) (x) (var_ref t) (swiz xxx (var_ref a)))\n"
+   "      (assign (constant bool (1)) (y) (var_ref t) (swiz xxx (var_ref b)))\n"
+   "      (assign (constant bool (1)) (z) (var_ref t) (swiz xxx (var_ref c)))\n"
+   "      (return (var_ref t))\n"
+   "    ))\n"
+   "\n"
+   "  (signature vec3\n"
+   "    (parameters (declare (in) float p))\n"
+   "    (\n"
+   "      (declare () float a)\n"
+   "      (declare () float b)\n"
+   "      (declare () float c)\n"
+   "      (declare () vec3 t)\n"
+   "\n"
+   "      (assign (constant bool (1)) (x) (var_ref a) (expression float noise (var_ref p)))\n"
+   "      (assign (constant bool (1)) (x) (var_ref b) (expression float noise (expression float + (var_ref p) (constant float (601.0)))))\n"
+   "      (assign (constant bool (1)) (x) (var_ref c) (expression float noise (expression float + (var_ref p) (constant float (1559.0)))))\n"
+   "\n"
+   "      (assign (constant bool (1)) (x) (var_ref t) (swiz xxx (var_ref a)))\n"
+   "      (assign (constant bool (1)) (y) (var_ref t) (swiz xxx (var_ref b)))\n"
+   "      (assign (constant bool (1)) (z) (var_ref t) (swiz xxx (var_ref c)))\n"
+   "      (return (var_ref t))\n"
+   "    ))\n"
    "))\n"
    ""
 ;
 static const char *builtin_noise4 =
    "((function noise4\n"
-   "   (signature vec4\n"
-   "     (parameters\n"
-   "       (declare (in) float x))\n"
-   "     ((return (constant vec4 (0 0 0 0)))))\n"
-   "   (signature vec4\n"
-   "     (parameters\n"
-   "       (declare (in) vec2 x))\n"
-   "     ((return (constant vec4 (0 0 0 0)))))\n"
-   "   (signature vec4\n"
-   "     (parameters\n"
-   "       (declare (in) vec3 x))\n"
-   "     ((return (constant vec4 (0 0 0 0)))))\n"
-   "   (signature vec4\n"
-   "     (parameters\n"
-   "       (declare (in) vec4 x))\n"
-   "     ((return (constant vec4 (0 0 0 0)))))\n"
+   "  (signature vec4\n"
+   "    (parameters (declare (in) vec4 p))\n"
+   "    (\n"
+   "      (declare () float _x)\n"
+   "      (declare () float _y)\n"
+   "      (declare () float _z)\n"
+   "      (declare () float _w)\n"
+   "      (declare () vec4 _r)\n"
+   "\n"
+   "      (declare () vec4 _p)\n"
+   "      (assign (constant bool (1)) (xyzw) (var_ref _p) (expression vec4 + (var_ref p) (constant vec4 (1559.0 113.0 1861.0 797.0))) )\n"
+   "\n"
+   "      (assign (constant bool (1)) (x) (var_ref _x) (expression float noise(var_ref p)))\n"
+   "      (assign (constant bool (1)) (x) (var_ref _y) (expression float noise(expression vec4 + (var_ref p) (constant vec4 (601.0 313.0 29.0 277.0)))))\n"
+   "      (assign (constant bool (1)) (x) (var_ref _z) (expression float noise(var_ref _p)))\n"
+   "      (assign (constant bool (1)) (x) (var_ref _w) (expression float noise(expression vec4 + (var_ref _p) (constant vec4 (601.0 313.0 29.0 277.0)))))\n"
+   "\n"
+   "      (assign (constant bool (1)) (x) (var_ref _r) (swiz xxxx (var_ref _x)))\n"
+   "      (assign (constant bool (1)) (y) (var_ref _r) (swiz xxxx (var_ref _y)))\n"
+   "      (assign (constant bool (1)) (z) (var_ref _r) (swiz xxxx (var_ref _z)))\n"
+   "      (assign (constant bool (1)) (w) (var_ref _r) (swiz xxxx (var_ref _w)))\n"
+   "      (return (var_ref _r))\n"
+   "    ))\n"
+   "\n"
+   "  (signature vec4\n"
+   "    (parameters (declare (in) vec3 p))\n"
+   "    (\n"
+   "      (declare () float _x)\n"
+   "      (declare () float _y)\n"
+   "      (declare () float _z)\n"
+   "      (declare () float _w)\n"
+   "      (declare () vec4 _r)\n"
+   "\n"
+   "      (declare () vec3 _p)\n"
+   "      (assign (constant bool (1)) (xyz) (var_ref _p) (expression vec3 + (var_ref p) (constant vec3 (1559.0 113.0 1861.0))) )\n"
+   "\n"
+   "      (assign (constant bool (1)) (x) (var_ref _x) (expression float noise(var_ref p)))\n"
+   "      (assign (constant bool (1)) (x) (var_ref _y) (expression float noise(expression vec3 + (var_ref p) (constant vec3 (601.0 313.0 29.0)))))\n"
+   "      (assign (constant bool (1)) (x) (var_ref _z) (expression float noise(var_ref _p)))\n"
+   "      (assign (constant bool (1)) (x) (var_ref _w) (expression float noise(expression vec3 + (var_ref _p) (constant vec3 (601.0 313.0 29.0)))))\n"
+   "\n"
+   "      (assign (constant bool (1)) (x) (var_ref _r) (swiz xxxx (var_ref _x)))\n"
+   "      (assign (constant bool (1)) (y) (var_ref _r) (swiz xxxx (var_ref _y)))\n"
+   "      (assign (constant bool (1)) (z) (var_ref _r) (swiz xxxx (var_ref _z)))\n"
+   "      (assign (constant bool (1)) (w) (var_ref _r) (swiz xxxx (var_ref _w)))\n"
+   "      (return (var_ref _r))\n"
+   "    ))\n"
+   "\n"
+   "  (signature vec4\n"
+   "    (parameters (declare (in) vec2 p))\n"
+   "    (\n"
+   "      (declare () float _x)\n"
+   "      (declare () float _y)\n"
+   "      (declare () float _z)\n"
+   "      (declare () float _w)\n"
+   "      (declare () vec4 _r)\n"
+   "\n"
+   "      (declare () vec2 _p)\n"
+   "      (assign (constant bool (1)) (xy) (var_ref _p) (expression vec2 + (var_ref p) (constant vec2 (1559.0 113.0))) )\n"
+   "\n"
+   "      (assign (constant bool (1)) (x) (var_ref _x) (expression float noise(var_ref p)))\n"
+   "      (assign (constant bool (1)) (x) (var_ref _y) (expression float noise(expression vec2 + (var_ref p) (constant vec2 (601.0 313.0)))))\n"
+   "      (assign (constant bool (1)) (x) (var_ref _z) (expression float noise(var_ref _p)))\n"
+   "      (assign (constant bool (1)) (x) (var_ref _w) (expression float noise(expression vec2 + (var_ref _p) (constant vec2 (601.0 313.0)))))\n"
+   "\n"
+   "      (assign (constant bool (1)) (x) (var_ref _r) (swiz xxxx (var_ref _x)))\n"
+   "      (assign (constant bool (1)) (y) (var_ref _r) (swiz xxxx (var_ref _y)))\n"
+   "      (assign (constant bool (1)) (z) (var_ref _r) (swiz xxxx (var_ref _z)))\n"
+   "      (assign (constant bool (1)) (w) (var_ref _r) (swiz xxxx (var_ref _w)))\n"
+   "      (return (var_ref _r))\n"
+   "    ))\n"
+   "\n"
+   "  (signature vec4\n"
+   "    (parameters (declare (in) float p))\n"
+   "    (\n"
+   "      (declare () float _x)\n"
+   "      (declare () float _y)\n"
+   "      (declare () float _z)\n"
+   "      (declare () float _w)\n"
+   "      (declare () vec4 _r)\n"
+   "\n"
+   "      (declare () float _p)\n"
+   "      (assign (constant bool (1)) (xy) (var_ref _p) (expression float + (var_ref p) (constant float (1559.0))) )\n"
+   "\n"
+   "      (assign (constant bool (1)) (x) (var_ref _x) (expression float noise(var_ref p)))\n"
+   "      (assign (constant bool (1)) (x) (var_ref _y) (expression float noise(expression float + (var_ref p) (constant float (601.0 313.0 29.0 277.0)))))\n"
+   "      (assign (constant bool (1)) (x) (var_ref _z) (expression float noise(var_ref _p)))\n"
+   "      (assign (constant bool (1)) (x) (var_ref _w) (expression float noise(expression float + (var_ref _p) (constant float (601.0 313.0 29.0 277.0)))))\n"
+   "\n"
+   "      (assign (constant bool (1)) (x) (var_ref _r) (swiz xxxx (var_ref _x)))\n"
+   "      (assign (constant bool (1)) (y) (var_ref _r) (swiz xxxx (var_ref _y)))\n"
+   "      (assign (constant bool (1)) (z) (var_ref _r) (swiz xxxx (var_ref _z)))\n"
+   "      (assign (constant bool (1)) (w) (var_ref _r) (swiz xxxx (var_ref _w)))\n"
+   "      (return (var_ref _r))\n"
+   "    ))\n"
    "))\n"
    ""
 ;
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