noise functions

5 files changed, 157 insertions, 139 deletions

diff --git a/src/mesa/shader/slang/library/slang_common_builtin.gc b/src/mesa/shader/slang/library/slang_common_builtin.gc
index 8812a734160..e4a55846b89 100644
--- a/src/mesa/shader/slang/library/slang_common_builtin.gc
+++ b/src/mesa/shader/slang/library/slang_common_builtin.gc
@@ -1699,123 +1699,107 @@ vec4 shadow2DProj (sampler2DShadow sampler, vec4 coord) {
 // AUTHOR: Stefan Gustavson ([email protected]), Nov 26, 2005
 //
 
-float noise1 (float x) {
-    float a;
-    __asm float_noise1 a, x;
-    return a;
+float noise1(const float x)
+{
+   __asm float_noise1 __retVal, x;
 }
 
-float noise1 (vec2 x) {
-    float a;
-    __asm float_noise2 a, x;
-    return a;
-}
 
-float noise1 (vec3 x) {
-    float a;
-    __asm float_noise3 a, x;
-    return a;
+float noise1(const vec2 x)
+{
+    __asm float_noise2 __retVal, x;
 }
 
-float noise1 (vec4 x) {
-    float a;
-    __asm float_noise4 a, x;
-    return a;
+float noise1(const vec3 x)
+{
+    __asm float_noise3 __retVal, x;
 }
 
-vec2 noise2 (float x) {
-    return vec2 (
-        noise1 (x),
-        noise1 (x + 19.34)
-    );
+float noise1(const vec4 x)
+{
+    __asm float_noise4 __retVal, x;
 }
 
-vec2 noise2 (vec2 x) {
-    return vec2 (
-        noise1 (x),
-        noise1 (x + vec2 (19.34, 7.66))
-    );
+vec2 noise2(const float x)
+{
+   __retVal.x = noise1(x);
+   __retVal.y = noise1(x + 19.34);
 }
 
-vec2 noise2 (vec3 x) {
-    return vec2 (
-        noise1 (x),
-        noise1 (x + vec3 (19.34, 7.66, 3.23))
-    );
+vec2 noise2(const vec2 x)
+{
+   __retVal.x = noise1(x);
+   __retVal.y = noise1(x + vec2(19.34, 7.66));
 }
 
-vec2 noise2 (vec4 x) {
-    return vec2 (
-        noise1 (x),
-        noise1 (x + vec4 (19.34, 7.66, 3.23, 2.77))
-    );
+vec2 noise2(const vec3 x)
+{
+   __retVal.x = noise1(x);
+   __retVal.y = noise1(x + vec3(19.34, 7.66, 3.23));
 }
 
-vec3 noise3 (float x) {
-    return vec3 (
-        noise1 (x),
-        noise1 (x + 19.34),
-        noise1 (x + 5.47)
-    );
+vec2 noise2(const vec4 x)
+{
+   __retVal.x = noise1(x);
+   __retVal.y = noise1(x + vec4(19.34, 7.66, 3.23, 2.77));
 }
 
-vec3 noise3 (vec2 x) {
-    return vec3 (
-        noise1 (x),
-        noise1 (x + vec2 (19.34, 7.66)),
-        noise1 (x + vec2 (5.47, 17.85))
-    );
+vec3 noise3(const float x)
+{
+   __retVal.x = noise1(x);
+   __retVal.y = noise1(x + 19.34);
+   __retVal.z = noise1(x + 5.47);
 }
 
-vec3 noise3 (vec3 x) {
-    return vec3 (
-        noise1 (x),
-        noise1 (x + vec3 (19.34, 7.66, 3.23)),
-        noise1 (x + vec3 (5.47, 17.85, 11.04))
-    );
+vec3 noise3(const vec2 x)
+{
+   __retVal.x = noise1(x);
+   __retVal.y = noise1(x + vec2(19.34, 7.66));
+   __retVal.z = noise1(x + vec2(5.47, 17.85));
 }
 
-vec3 noise3 (vec4 x) {
-    return vec3 (
-        noise1 (x),
-        noise1 (x + vec4 (19.34, 7.66, 3.23, 2.77)),
-        noise1 (x + vec4 (5.47, 17.85, 11.04, 13.19))
-    );
+vec3 noise3(const vec3 x)
+{
+   __retVal.x = noise1(x);
+   __retVal.y = noise1(x + vec3(19.34, 7.66, 3.23));
+   __retVal.z = noise1(x + vec3(5.47, 17.85, 11.04));
 }
 
-vec4 noise4 (float x) {
-    return vec4 (
-        noise1 (x),
-        noise1 (x + 19.34),
-        noise1 (x + 5.47),
-        noise1 (x + 23.54)
-    );
+vec3 noise3(const vec4 x)
+{
+   __retVal.x = noise1(x);
+   __retVal.y = noise1(x + vec4(19.34, 7.66, 3.23, 2.77));
+   __retVal.z = noise1(x + vec4(5.47, 17.85, 11.04, 13.19));
 }
 
-vec4 noise4 (vec2 x) {
-    return vec4 (
-        noise1 (x),
-        noise1 (x + vec2 (19.34, 7.66)),
-        noise1 (x + vec2 (5.47, 17.85)),
-        noise1 (x + vec2 (23.54, 29.11))
-    );
+vec4 noise4(const float x)
+{
+   __retVal.x = noise1(x);
+   __retVal.y = noise1(x + 19.34);
+   __retVal.z = noise1(x + 5.47);
+   __retVal.w = noise1(x + 23.54);
 }
 
-vec4 noise4 (vec3 x) {
-    return vec4 (
-        noise1 (x),
-        noise1 (x + vec3 (19.34, 7.66, 3.23)),
-        noise1 (x + vec3 (5.47, 17.85, 11.04)),
-        noise1 (x + vec3 (23.54, 29.11, 31.91))
-    );
+vec4 noise4(const vec2 x)
+{
+   __retVal.x = noise1(x);
+   __retVal.y = noise1(x + vec2 (19.34, 7.66));
+   __retVal.z = noise1(x + vec2 (5.47, 17.85));
+   __retVal.w = noise1(x + vec2 (23.54, 29.11));
 }
 
-vec4 noise4 (vec4 x) {
-    return vec4 (
-        noise1 (x),
-        noise1 (x + vec4 (19.34, 7.66, 3.23, 2.77)),
-        noise1 (x + vec4 (5.47, 17.85, 11.04, 13.19)),
-        noise1 (x + vec4 (23.54, 29.11, 31.91, 37.48))
-    );
+vec4 noise4(const vec3 x)
+{
+   __retVal.x = noise1(x);
+   __retVal.y = noise1(x + vec3(19.34, 7.66, 3.23));
+   __retVal.z = noise1(x + vec3(5.47, 17.85, 11.04));
+   __retVal.w = noise1(x + vec3(23.54, 29.11, 31.91));
 }
 
+vec4 noise4(const vec4 x)
+{
+   __retVal.x = noise1(x);
+   __retVal.y = noise1(x + vec4(19.34, 7.66, 3.23, 2.77));
+   __retVal.z = noise1(x + vec4(5.47, 17.85, 11.04, 13.19));
+   __retVal.w = noise1(x + vec4(23.54, 29.11, 31.91, 37.48));
+}
diff --git a/src/mesa/shader/slang/library/slang_common_builtin_gc.h b/src/mesa/shader/slang/library/slang_common_builtin_gc.h
index 655efdda168..e64f401115c 100644
--- a/src/mesa/shader/slang/library/slang_common_builtin_gc.h
+++ b/src/mesa/shader/slang/library/slang_common_builtin_gc.h
@@ -717,54 +717,68 @@
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+111,105,115,101,49,0,18,120,0,0,0,20,0,9,18,95,95,114,101,116,86,97,108,0,59,121,0,58,110,111,105,
+115,101,49,0,18,120,0,58,118,101,99,50,0,17,49,57,0,51,52,0,0,0,17,55,0,54,54,0,0,0,0,46,0,0,20,0,
+9,18,95,95,114,101,116,86,97,108,0,59,122,0,58,110,111,105,115,101,49,0,18,120,0,58,118,101,99,50,
+0,17,53,0,52,55,0,0,0,17,49,55,0,56,53,0,0,0,0,46,0,0,20,0,0,1,0,11,0,110,111,105,115,101,51,0,1,1,
+0,11,120,0,0,0,1,9,18,95,95,114,101,116,86,97,108,0,59,120,0,58,110,111,105,115,101,49,0,18,120,0,
+0,0,20,0,9,18,95,95,114,101,116,86,97,108,0,59,121,0,58,110,111,105,115,101,49,0,18,120,0,58,118,
+101,99,51,0,17,49,57,0,51,52,0,0,0,17,55,0,54,54,0,0,0,17,51,0,50,51,0,0,0,0,46,0,0,20,0,9,18,95,
+95,114,101,116,86,97,108,0,59,122,0,58,110,111,105,115,101,49,0,18,120,0,58,118,101,99,51,0,17,53,
+0,52,55,0,0,0,17,49,55,0,56,53,0,0,0,17,49,49,0,48,52,0,0,0,0,46,0,0,20,0,0,1,0,11,0,110,111,105,
+115,101,51,0,1,1,0,12,120,0,0,0,1,9,18,95,95,114,101,116,86,97,108,0,59,120,0,58,110,111,105,115,
+101,49,0,18,120,0,0,0,20,0,9,18,95,95,114,101,116,86,97,108,0,59,121,0,58,110,111,105,115,101,49,0,
+18,120,0,58,118,101,99,52,0,17,49,57,0,51,52,0,0,0,17,55,0,54,54,0,0,0,17,51,0,50,51,0,0,0,17,50,0,
+55,55,0,0,0,0,46,0,0,20,0,9,18,95,95,114,101,116,86,97,108,0,59,122,0,58,110,111,105,115,101,49,0,
+18,120,0,58,118,101,99,52,0,17,53,0,52,55,0,0,0,17,49,55,0,56,53,0,0,0,17,49,49,0,48,52,0,0,0,17,
+49,51,0,49,57,0,0,0,0,46,0,0,20,0,0,1,0,12,0,110,111,105,115,101,52,0,1,1,0,9,120,0,0,0,1,9,18,95,
+95,114,101,116,86,97,108,0,59,120,0,58,110,111,105,115,101,49,0,18,120,0,0,0,20,0,9,18,95,95,114,
+101,116,86,97,108,0,59,121,0,58,110,111,105,115,101,49,0,18,120,0,17,49,57,0,51,52,0,0,46,0,0,20,0,
+9,18,95,95,114,101,116,86,97,108,0,59,122,0,58,110,111,105,115,101,49,0,18,120,0,17,53,0,52,55,0,0,
+46,0,0,20,0,9,18,95,95,114,101,116,86,97,108,0,59,119,0,58,110,111,105,115,101,49,0,18,120,0,17,50,
+51,0,53,52,0,0,46,0,0,20,0,0,1,0,12,0,110,111,105,115,101,52,0,1,1,0,10,120,0,0,0,1,9,18,95,95,114,
+101,116,86,97,108,0,59,120,0,58,110,111,105,115,101,49,0,18,120,0,0,0,20,0,9,18,95,95,114,101,116,
+86,97,108,0,59,121,0,58,110,111,105,115,101,49,0,18,120,0,58,118,101,99,50,0,17,49,57,0,51,52,0,0,
+0,17,55,0,54,54,0,0,0,0,46,0,0,20,0,9,18,95,95,114,101,116,86,97,108,0,59,122,0,58,110,111,105,115,
+101,49,0,18,120,0,58,118,101,99,50,0,17,53,0,52,55,0,0,0,17,49,55,0,56,53,0,0,0,0,46,0,0,20,0,9,18,
+95,95,114,101,116,86,97,108,0,59,119,0,58,110,111,105,115,101,49,0,18,120,0,58,118,101,99,50,0,17,
+50,51,0,53,52,0,0,0,17,50,57,0,49,49,0,0,0,0,46,0,0,20,0,0,1,0,12,0,110,111,105,115,101,52,0,1,1,0,
+11,120,0,0,0,1,9,18,95,95,114,101,116,86,97,108,0,59,120,0,58,110,111,105,115,101,49,0,18,120,0,0,
+0,20,0,9,18,95,95,114,101,116,86,97,108,0,59,121,0,58,110,111,105,115,101,49,0,18,120,0,58,118,101,
+99,51,0,17,49,57,0,51,52,0,0,0,17,55,0,54,54,0,0,0,17,51,0,50,51,0,0,0,0,46,0,0,20,0,9,18,95,95,
+114,101,116,86,97,108,0,59,122,0,58,110,111,105,115,101,49,0,18,120,0,58,118,101,99,51,0,17,53,0,
+52,55,0,0,0,17,49,55,0,56,53,0,0,0,17,49,49,0,48,52,0,0,0,0,46,0,0,20,0,9,18,95,95,114,101,116,86,
+97,108,0,59,119,0,58,110,111,105,115,101,49,0,18,120,0,58,118,101,99,51,0,17,50,51,0,53,52,0,0,0,
+17,50,57,0,49,49,0,0,0,17,51,49,0,57,49,0,0,0,0,46,0,0,20,0,0,1,0,12,0,110,111,105,115,101,52,0,1,
+1,0,12,120,0,0,0,1,9,18,95,95,114,101,116,86,97,108,0,59,120,0,58,110,111,105,115,101,49,0,18,120,
+0,0,0,20,0,9,18,95,95,114,101,116,86,97,108,0,59,121,0,58,110,111,105,115,101,49,0,18,120,0,58,118,
+101,99,52,0,17,49,57,0,51,52,0,0,0,17,55,0,54,54,0,0,0,17,51,0,50,51,0,0,0,17,50,0,55,55,0,0,0,0,
+46,0,0,20,0,9,18,95,95,114,101,116,86,97,108,0,59,122,0,58,110,111,105,115,101,49,0,18,120,0,58,
+118,101,99,52,0,17,53,0,52,55,0,0,0,17,49,55,0,56,53,0,0,0,17,49,49,0,48,52,0,0,0,17,49,51,0,49,57,
+0,0,0,0,46,0,0,20,0,9,18,95,95,114,101,116,86,97,108,0,59,119,0,58,110,111,105,115,101,49,0,18,120,
+0,58,118,101,99,52,0,17,50,51,0,53,52,0,0,0,17,50,57,0,49,49,0,0,0,17,51,49,0,57,49,0,0,0,17,51,55,
+0,52,56,0,0,0,0,46,0,0,20,0,0,0
diff --git a/src/mesa/shader/slang/slang_codegen.c b/src/mesa/shader/slang/slang_codegen.c
index 6ae307d09af..9b932ca71b4 100644
--- a/src/mesa/shader/slang/slang_codegen.c
+++ b/src/mesa/shader/slang/slang_codegen.c
@@ -494,6 +494,11 @@ static slang_asm_info AsmInfo[] = {
    { "float_rcp", IR_RCP, 1, 1 },
    { "float_sine", IR_SIN, 1, 1 },
    { "float_cosine", IR_COS, 1, 1 },
+   { "float_noise1", IR_NOISE1, 1, 1},
+   { "float_noise2", IR_NOISE2, 1, 1},
+   { "float_noise3", IR_NOISE3, 1, 1},
+   { "float_noise4", IR_NOISE4, 1, 1},
+
    { NULL, IR_NOP, 0, 0 }
 };
 
@@ -1657,6 +1662,8 @@ _slang_gen_var_decl(slang_assemble_ctx *A, slang_variable *var)
 
 /**
  * Generate code for a selection expression:   b ? x : y
+ * XXX in some cases we could implement a selection expression
+ * with an LRP instruction (use the boolean as the interpolant).
  */
 static slang_ir_node *
 _slang_gen_select(slang_assemble_ctx *A, slang_operation *oper)
diff --git a/src/mesa/shader/slang/slang_emit.c b/src/mesa/shader/slang/slang_emit.c
index 092c53bda00..8e598bf6608 100644
--- a/src/mesa/shader/slang/slang_emit.c
+++ b/src/mesa/shader/slang/slang_emit.c
@@ -89,6 +89,11 @@ static slang_ir_info IrInfo[] = {
    { IR_DDX, "IR_DDY", OPCODE_DDX, 4, 1 },
    { IR_SIN, "IR_SIN", OPCODE_SIN, 1, 1 },
    { IR_COS, "IR_COS", OPCODE_COS, 1, 1 },
+   { IR_NOISE1, "IR_NOISE1", OPCODE_NOISE1, 1, 1 },
+   { IR_NOISE2, "IR_NOISE2", OPCODE_NOISE2, 1, 1 },
+   { IR_NOISE3, "IR_NOISE3", OPCODE_NOISE3, 1, 1 },
+   { IR_NOISE4, "IR_NOISE4", OPCODE_NOISE4, 1, 1 },
+
    /* other */
    { IR_SEQ, "IR_SEQ", OPCODE_NOP, 0, 0 },
    { IR_SCOPE, "IR_SCOPE", OPCODE_NOP, 0, 0 },
@@ -994,6 +999,10 @@ emit(slang_var_table *vt, slang_ir_node *n, struct gl_program *prog)
    case IR_COS:
    case IR_DDX:
    case IR_DDY:
+   case IR_NOISE1:
+   case IR_NOISE2:
+   case IR_NOISE3:
+   case IR_NOISE4:
    /* binary */
    case IR_ADD:
    case IR_SUB:
diff --git a/src/mesa/shader/slang/slang_ir.h b/src/mesa/shader/slang/slang_ir.h
index 5617c56d4b5..39b4ab65b59 100644
--- a/src/mesa/shader/slang/slang_ir.h
+++ b/src/mesa/shader/slang/slang_ir.h
@@ -84,6 +84,10 @@ typedef enum
    IR_DDY,     /* derivative w.r.t. Y */
    IR_SIN,     /* sine */
    IR_COS,     /* cosine */
+   IR_NOISE1,  /* noise(x) */
+   IR_NOISE2,  /* noise(x, y) */
+   IR_NOISE3,  /* noise(x, y, z) */
+   IR_NOISE4,  /* noise(x, y, z, w) */
    IR_NOT,     /* logical not */
    IR_VAR,     /* variable reference */
    IR_VAR_DECL,/* var declaration */