From 89fe9372b2915212a43a70822ef12f46309289c9 Mon Sep 17 00:00:00 2001
From: Egor Yusov <egor.yusov@gmail.com>
Date: Mon, 29 Oct 2018 19:37:01 -0700
Subject: Redefined frexp in HLSL2GLSL converter to match HLSL signature (float
 frexp(float, float))

---
 .../include/GLSLDefinitions.h                      | 32 ++++++++++++++++++++++
 .../include/GLSLDefinitions_inc.h                  | 32 ++++++++++++++++++++++
 .../src/HLSL2GLSLConverterImpl.cpp                 |  2 +-
 3 files changed, 65 insertions(+), 1 deletion(-)

(limited to 'Graphics')

diff --git a/Graphics/HLSL2GLSLConverterLib/include/GLSLDefinitions.h b/Graphics/HLSL2GLSLConverterLib/include/GLSLDefinitions.h
index dc94bcac..5197d84c 100644
--- a/Graphics/HLSL2GLSLConverterLib/include/GLSLDefinitions.h
+++ b/Graphics/HLSL2GLSLConverterLib/include/GLSLDefinitions.h
@@ -644,6 +644,38 @@ uvec3  _ToUvec( vec3  f3 ){ return _ToUvec3( f3.x, f3.y, f3.z ); }
 uvec4  _ToUvec( vec4  f4 ){ return _ToUvec4( f4.x, f4.y, f4.z, f4.w ); }
 
 
+// We have to redefine 'float frexp(float, int)' as 'float frexp(float, float)'
+float _frexp(float f1, out float fexp1)
+{
+    int iexp1;
+    float sig1 = frexp(f1, iexp1);
+    fexp1 = float(iexp1);
+    return sig1;
+}
+vec2 _frexp(vec2 f2, out vec2 fexp2)
+{
+    ivec2 iexp2;
+    vec2 sig2 = frexp(f2, iexp2);
+    fexp2 = vec2(iexp2);
+    return sig2;
+}
+vec3 _frexp(vec3 f3, out vec3 fexp3)
+{
+    ivec3 iexp3;
+    vec3 sig3 = frexp(f3, iexp3);
+    fexp3 = vec3(iexp3);
+    return sig3;
+}
+vec4 _frexp(vec4 f4, out vec4 fexp4)
+{
+    ivec4 iexp4;
+    vec4 sig4 = frexp(f4, iexp4);
+    fexp4 = vec4(iexp4);
+    return sig4;
+}
+#define frexp _frexp
+
+
 // TEXTURE FUNCTION STUB MACROS
 // https://www.opengl.org/wiki/Sampler_(GLSL)
 
diff --git a/Graphics/HLSL2GLSLConverterLib/include/GLSLDefinitions_inc.h b/Graphics/HLSL2GLSLConverterLib/include/GLSLDefinitions_inc.h
index 1ad09c50..a94355c4 100644
--- a/Graphics/HLSL2GLSLConverterLib/include/GLSLDefinitions_inc.h
+++ b/Graphics/HLSL2GLSLConverterLib/include/GLSLDefinitions_inc.h
@@ -644,6 +644,38 @@
 "uvec4  _ToUvec( vec4  f4 ){ return _ToUvec4( f4.x, f4.y, f4.z, f4.w ); }\n"
 "\n"
 "\n"
+"// We have to redefine \'float frexp(float, int)\' as \'float frexp(float, float)\'\n"
+"float _frexp(float f1, out float fexp1)\n"
+"{\n"
+"    int iexp1;\n"
+"    float sig1 = frexp(f1, iexp1);\n"
+"    fexp1 = float(iexp1);\n"
+"    return sig1;\n"
+"}\n"
+"vec2 _frexp(vec2 f2, out vec2 fexp2)\n"
+"{\n"
+"    ivec2 iexp2;\n"
+"    vec2 sig2 = frexp(f2, iexp2);\n"
+"    fexp2 = vec2(iexp2);\n"
+"    return sig2;\n"
+"}\n"
+"vec3 _frexp(vec3 f3, out vec3 fexp3)\n"
+"{\n"
+"    ivec3 iexp3;\n"
+"    vec3 sig3 = frexp(f3, iexp3);\n"
+"    fexp3 = vec3(iexp3);\n"
+"    return sig3;\n"
+"}\n"
+"vec4 _frexp(vec4 f4, out vec4 fexp4)\n"
+"{\n"
+"    ivec4 iexp4;\n"
+"    vec4 sig4 = frexp(f4, iexp4);\n"
+"    fexp4 = vec4(iexp4);\n"
+"    return sig4;\n"
+"}\n"
+"#define frexp _frexp\n"
+"\n"
+"\n"
 "// TEXTURE FUNCTION STUB MACROS\n"
 "// https://www.opengl.org/wiki/Sampler_(GLSL)\n"
 "\n"
diff --git a/Graphics/HLSL2GLSLConverterLib/src/HLSL2GLSLConverterImpl.cpp b/Graphics/HLSL2GLSLConverterLib/src/HLSL2GLSLConverterImpl.cpp
index 5e53bd4e..04c88348 100644
--- a/Graphics/HLSL2GLSLConverterLib/src/HLSL2GLSLConverterImpl.cpp
+++ b/Graphics/HLSL2GLSLConverterLib/src/HLSL2GLSLConverterImpl.cpp
@@ -213,7 +213,7 @@
 //   (-) fmod( {matrix types} )
 // [V] frac( {float, float2, float3, float4} )
 //   (-) frac( {matrix types} )
-// [V] frexp( {float, float2, float3, float4}, {int, int2, int3, int4} )
+// [V] frexp( {float, float2, float3, float4}, {float, float2, float3, float4} )
 // [V] fwidth( {float, float2, float3, float4} )
 //   (-) fwidth( {matrix types} )
 // [V] isfinite( {float, float2, float3, float4} ) - implemented as (!isinf(x) && !isnan(x))
-- 
cgit v1.2.3