1 files changed, 87 insertions, 0 deletions
diff --git a/skia/sgl/SkFP.h b/skia/sgl/SkFP.h
new file mode 100644
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+++ b/skia/sgl/SkFP.h
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+/* libs/graphics/sgl/SkFP.h
+**
+** Copyright 2006, Google Inc.
+**
+** Licensed under the Apache License, Version 2.0 (the "License"); 
+** you may not use this file except in compliance with the License. 
+** You may obtain a copy of the License at 
+**
+**     http://www.apache.org/licenses/LICENSE-2.0 
+**
+** Unless required by applicable law or agreed to in writing, software 
+** distributed under the License is distributed on an "AS IS" BASIS, 
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
+** See the License for the specific language governing permissions and 
+** limitations under the License.
+*/
+
+#ifndef SkFP_DEFINED
+#define SkFP_DEFINED
+
+#include "SkMath.h"
+
+#ifdef SK_SCALAR_IS_FLOAT
+
+    typedef float SkFP;
+
+    #define SkScalarToFP(n)         (n)
+    #define SkFPToScalar(n)         (n)
+    #define SkIntToFP(n)            SkIntToScalar(n)
+    #define SkFPRound(x)            SkScalarRound(n)
+    #define SkFPCeil(x)             SkScalarCeil(n)
+    #define SkFPFloor(x)            SkScalarFloor(n)
+
+    #define SkFPNeg(x)              (-(x))
+    #define SkFPAbs(x)              SkScalarAbs(x)
+    #define SkFPAdd(a, b)           ((a) + (b))
+    #define SkFPSub(a, b)           ((a) - (b))
+    #define SkFPMul(a, b)           ((a) * (b))
+    #define SkFPMulInt(a, n)        ((a) * (n))
+    #define SkFPDiv(a, b)           ((a) / (b))
+    #define SkFPDivInt(a, n)        ((a) / (n))
+    #define SkFPInvert(x)           SkScalarInvert(x)
+    #define SkFPSqrt(x)             SkScalarSqrt(x)
+    #define SkFPCubeRoot(x)         pow(x, 1.0f/3)
+
+    #define SkFPLT(a, b)            ((a) < (b))
+    #define SkFPLE(a, b)            ((a) <= (b))
+    #define SkFPGT(a, b)            ((a) > (b))
+    #define SkFPGE(a, b)            ((a) >= (b))
+
+#else   // scalar is fixed
+
+    #include "SkFloat.h"
+
+    typedef int32_t SkFP;
+
+    #define SkScalarToFP(n)         SkFloat::SetShift(n, -16)
+    #define SkFPToScalar(n)         SkFloat::GetShift(n, -16)
+    #define SkIntToFP(n)            SkFloat::SetShift(n, 0)
+    #define SkFPRound(x)            SkFloat::Round(x);
+    #define SkFPCeil(x)             SkFloat::Ceil();
+    #define SkFPFloor(x)            SkFloat::Floor();
+
+    #define SkFPNeg(x)              SkFloat::Neg(x)
+    #define SkFPAbs(x)              SkFloat::Abs(x)
+    #define SkFPAdd(a, b)           SkFloat::Add(a, b)
+    #define SkFPSub(a, b)           SkFloat::Add(a, SkFloat::Neg(b))
+    #define SkFPMul(a, b)           SkFloat::Mul(a, b)
+    #define SkFPMulInt(a, n)        SkFloat::MulInt(a, n)
+    #define SkFPDiv(a, b)           SkFloat::Div(a, b)
+    #define SkFPDivInt(a, n)        SkFloat::DivInt(a, n)
+    #define SkFPInvert(x)           SkFloat::Invert(x)
+    #define SkFPSqrt(x)             SkFloat::Sqrt(x)
+    #define SkFPCubeRoot(x)         SkFloat::CubeRoot(x)
+
+    #define SkFPLT(a, b)            (SkFloat::Cmp(a, b) < 0)
+    #define SkFPLE(a, b)            (SkFloat::Cmp(a, b) <= 0)
+    #define SkFPGT(a, b)            (SkFloat::Cmp(a, b) > 0)
+    #define SkFPGE(a, b)            (SkFloat::Cmp(a, b) >= 0)
+
+#endif
+
+#ifdef SK_DEBUG
+    void SkFP_UnitTest();
+#endif
+
+#endif