1

external/vpc/public/mathlib/fltx4.h

@@ -0,0 +1,97 @@
+//===== Copyright 1996-2010, Valve Corporation, All rights reserved. ======//
+//
+// Purpose: - defines the type fltx4 - Avoid cyclic includion.
+//
+//===========================================================================//
+
+#ifndef FLTX4_H
+#define FLTX4_H
+
+#if defined(GNUC)
+#define USE_STDC_FOR_SIMD 0
+#else
+#define USE_STDC_FOR_SIMD 0
+#endif
+
+#if (!defined(PLATFORM_PPC) && (USE_STDC_FOR_SIMD == 0))
+#define _SSE1 1
+#endif
+
+// I thought about defining a class/union for the SIMD packed floats instead of using fltx4,
+// but decided against it because (a) the nature of SIMD code which includes comparisons is to blur
+// the relationship between packed floats and packed integer types and (b) not sure that the
+// compiler would handle generating good code for the intrinsics.
+
+#if USE_STDC_FOR_SIMD
+
+#error "hello"
+typedef union
+{
+	float  m128_f32[4];
+	uint32 m128_u32[4];
+} fltx4;
+
+typedef fltx4 i32x4;
+typedef fltx4 u32x4;
+
+#ifdef _PS3
+typedef fltx4 u32x4;
+typedef fltx4 i32x4;
+#endif
+typedef fltx4 bi32x4;
+
+#elif ( defined( _PS3 ) )
+
+typedef union
+{
+	// This union allows float/int access (which generally shouldn't be done in inner loops)
+
+	vec_float4	vmxf;
+	vec_int4	vmxi;
+	vec_uint4	vmxui;
+	__vector bool vmxbi;
+
+	struct 
+	{
+		float x;
+		float y;
+		float z;
+		float w;
+	};
+
+	float		m128_f32[4];
+	uint32		m128_u32[4];
+	int32		m128_i32[4];
+
+} fltx4_union;
+
+typedef vec_float4 fltx4;
+typedef vec_uint4  u32x4;
+typedef vec_int4   i32x4;
+typedef __vector bool bi32x4;
+#define DIFFERENT_NATIVE_VECTOR_TYPES // true if the compiler has different types for float4, uint4, int4, etc
+
+#elif ( defined( _X360 ) )
+
+typedef union
+{
+	// This union allows float/int access (which generally shouldn't be done in inner loops)
+	__vector4	vmx;
+	float		m128_f32[4];
+	uint32		m128_u32[4];
+} fltx4_union;
+
+typedef __vector4 fltx4;
+typedef __vector4 i32x4; // a VMX register; just a way of making it explicit that we're doing integer ops.
+typedef __vector4 u32x4; // a VMX register; just a way of making it explicit that we're doing unsigned integer ops.
+typedef fltx4 bi32x4;
+#else
+
+typedef __m128 fltx4;
+typedef __m128 i32x4;
+typedef __m128 u32x4;
+typedef fltx4 bi32x4;
+
+#endif
+
+#endif