Revert "Revert "begin to remove SkLONGLONG and wean Skia off of Sk64""

This reverts commit 15b986baf026a3da5e2cac8106a1b753df242c39.

BUG=

Review URL: https://codereview.chromium.org/119353003

git-svn-id: http://skia.googlecode.com/svn/trunk@12796 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/include/config/SkUserConfig.h b/include/config/SkUserConfig.h
index 534c79d..ec791d9 100644
--- a/include/config/SkUserConfig.h
+++ b/include/config/SkUserConfig.h
@@ -88,12 +88,6 @@
 //#define SK_UINT8_BITFIELD_LENDIAN
 
 
-/*  Some compilers don't support long long for 64bit integers. If yours does
-    not, define this to the appropriate type.
- */
-//#define SkLONGLONG int64_t
-
-
 /*  To write debug messages to a console, skia will call SkDebugf(...) following
     printf conventions (e.g. const char* format, ...). If you want to redirect
     this to something other than printf, define yours here
diff --git a/include/core/Sk64.h b/include/core/Sk64.h
index eba8b68..0097449 100644
--- a/include/core/Sk64.h
+++ b/include/core/Sk64.h
@@ -17,9 +17,17 @@
     Sk64 is a 64-bit math package that does not require long long support from the compiler.
 */
 struct SK_API Sk64 {
+private:
     int32_t  fHi;   //!< the high 32 bits of the number (including sign)
     uint32_t fLo;   //!< the low 32 bits of the number
 
+public:
+    int32_t hi() const { return fHi; }
+    uint32_t lo() const { return fLo; }
+
+    int64_t as64() const { return ((int64_t)fHi << 32) | fLo; }
+    int64_t getLongLong() const { return this->as64(); }
+
     /** Returns non-zero if the Sk64 can be represented as a signed 32 bit integer
     */
     SkBool is32() const { return fHi == ((int32_t)fLo >> 31); }
@@ -169,9 +177,8 @@
         return a.fHi > b.fHi || (a.fHi == b.fHi && a.fLo >= b.fLo);
     }
 
-#ifdef SkLONGLONG
-    SkLONGLONG getLongLong() const;
-#endif
+    // Private to unittests. Parameter is (skiatest::Reporter*)
+    static void UnitTestWithReporter(void* skiatest_reporter);
 };
 
 #endif
diff --git a/include/core/SkFixed.h b/include/core/SkFixed.h
index 580d94b..e63794e 100644
--- a/include/core/SkFixed.h
+++ b/include/core/SkFixed.h
@@ -86,17 +86,6 @@
 #define SkFixedAve(a, b)    (((a) + (b)) >> 1)
 
 SkFixed SkFixedMul_portable(SkFixed, SkFixed);
-inline SkFixed SkFixedSquare_portable(SkFixed value)
-{
-    uint32_t a = SkAbs32(value);
-    uint32_t ah = a >> 16;
-    uint32_t al = a & 0xFFFF;
-    SkFixed result = ah * a + al * ah + (al * al >> 16);
-    if (result >= 0)
-        return result;
-    else // Overflow.
-        return SK_FixedMax;
-}
 
 #define SkFixedDiv(numer, denom)    SkDivBits(numer, denom, 16)
 
@@ -118,14 +107,9 @@
 #ifdef SkLONGLONG
     inline SkFixed SkFixedMul_longlong(SkFixed a, SkFixed b)
     {
-        return (SkFixed)((SkLONGLONG)a * b >> 16);
-    }
-    inline SkFixed SkFixedSquare_longlong(SkFixed value)
-    {
-        return (SkFixed)((SkLONGLONG)value * value >> 16);
+        return (SkFixed)((int64_t)a * b >> 16);
     }
     #define SkFixedMul(a,b)     SkFixedMul_longlong(a,b)
-    #define SkFixedSquare(a)    SkFixedSquare_longlong(a)
 #endif
 
 #if defined(SK_CPU_ARM)
diff --git a/include/core/SkPostConfig.h b/include/core/SkPostConfig.h
index 323d1e8..2156519 100644
--- a/include/core/SkPostConfig.h
+++ b/include/core/SkPostConfig.h
@@ -227,13 +227,13 @@
 
 //////////////////////////////////////////////////////////////////////
 
+// TODO: rebaseline as needed so we can remove this flag entirely.
+//  - all platforms have int64_t now
+//  - we have slightly different fixed math results because of this check
+//    since we don't define this for linux/android
 #if defined(SK_BUILD_FOR_WIN32) || defined(SK_BUILD_FOR_MAC)
 #  ifndef SkLONGLONG
-#    ifdef SK_BUILD_FOR_WIN32
-#      define SkLONGLONG __int64
-#    else
-#      define SkLONGLONG long long
-#    endif
+#    define SkLONGLONG int64_t
 #  endif
 #endif
 
diff --git a/include/utils/SkCamera.h b/include/utils/SkCamera.h
index ad74c81..2e5e342 100644
--- a/include/utils/SkCamera.h
+++ b/include/utils/SkCamera.h
@@ -1,4 +1,3 @@
-
 /*
  * Copyright 2006 The Android Open Source Project
  *
@@ -6,15 +5,11 @@
  * found in the LICENSE file.
  */
 
-
-
-
 //  Inspired by Rob Johnson's most excellent QuickDraw GX sample code
 
 #ifndef SkCamera_DEFINED
 #define SkCamera_DEFINED
 
-#include "Sk64.h"
 #include "SkMatrix.h"
 
 class SkCanvas;
diff --git a/src/core/Sk64.cpp b/src/core/Sk64.cpp
index 1fb0454..0b5b3df 100644
--- a/src/core/Sk64.cpp
+++ b/src/core/Sk64.cpp
@@ -285,11 +285,3 @@
     return root;
 }
 
-#ifdef SkLONGLONG
-    SkLONGLONG Sk64::getLongLong() const
-    {
-        SkLONGLONG value = fHi;
-        value <<= 32;
-        return value | fLo;
-    }
-#endif
diff --git a/src/core/SkMath.cpp b/src/core/SkMath.cpp
index e1133c7..e7c4fdc 100644
--- a/src/core/SkMath.cpp
+++ b/src/core/SkMath.cpp
@@ -55,7 +55,7 @@
 
 SkFixed SkFixedMul_portable(SkFixed a, SkFixed b) {
 #if defined(SkLONGLONG)
-    return static_cast<SkFixed>((SkLONGLONG)a * b >> 16);
+    return static_cast<SkFixed>((int64_t)a * b >> 16);
 #else
     int sa = SkExtractSign(a);
     int sb = SkExtractSign(b);
diff --git a/tests/BitmapCopyTest.cpp b/tests/BitmapCopyTest.cpp
index 0df8c06..7a1d9ac 100644
--- a/tests/BitmapCopyTest.cpp
+++ b/tests/BitmapCopyTest.cpp
@@ -358,22 +358,22 @@
 
                 case SkBitmap::kA8_Config:
                 case SkBitmap::kIndex8_Config:
-                    if (safeSize.fHi != 0x2386F2 ||
-                        safeSize.fLo != 0x6FC10000)
+                    if (safeSize.as64() != 0x2386F26FC10000LL) {
                         sizeFail = true;
+                    }
                     break;
 
                 case SkBitmap::kRGB_565_Config:
                 case SkBitmap::kARGB_4444_Config:
-                    if (safeSize.fHi != 0x470DE4 ||
-                        safeSize.fLo != 0xDF820000)
+                    if (safeSize.as64() != 0x470DE4DF820000LL) {
                         sizeFail = true;
+                    }
                     break;
 
                 case SkBitmap::kARGB_8888_Config:
-                    if (safeSize.fHi != 0x8E1BC9 ||
-                        safeSize.fLo != 0xBF040000)
+                    if (safeSize.as64() != 0x8E1BC9BF040000LL) {
                         sizeFail = true;
+                    }
                     break;
 
                 default:
diff --git a/tests/MathTest.cpp b/tests/MathTest.cpp
index 1b8954a..8cba67d 100644
--- a/tests/MathTest.cpp
+++ b/tests/MathTest.cpp
@@ -188,28 +188,6 @@
     }
 }
 
-#if defined(SkLONGLONG)
-static int symmetric_fixmul(int a, int b) {
-    int sa = SkExtractSign(a);
-    int sb = SkExtractSign(b);
-
-    a = SkApplySign(a, sa);
-    b = SkApplySign(b, sb);
-
-#if 1
-    int c = (int)(((SkLONGLONG)a * b) >> 16);
-
-    return SkApplySign(c, sa ^ sb);
-#else
-    SkLONGLONG ab = (SkLONGLONG)a * b;
-    if (sa ^ sb) {
-        ab = -ab;
-    }
-    return ab >> 16;
-#endif
-}
-#endif
-
 static void check_length(skiatest::Reporter* reporter,
                          const SkPoint& p, SkScalar targetLen) {
     float x = SkScalarToFloat(p.fX);
@@ -492,12 +470,11 @@
     unittest_fastfloat(reporter);
     unittest_isfinite(reporter);
 
-#ifdef SkLONGLONG
     for (i = 0; i < 10000; i++) {
         SkFixed numer = rand.nextS();
         SkFixed denom = rand.nextS();
         SkFixed result = SkFixedDiv(numer, denom);
-        SkLONGLONG check = ((SkLONGLONG)numer << 16) / denom;
+        int64_t check = ((int64_t)numer << 16) / denom;
 
         (void)SkCLZ(numer);
         (void)SkCLZ(denom);
@@ -509,20 +486,7 @@
             check = SK_MinS32;
         }
         REPORTER_ASSERT(reporter, result == (int32_t)check);
-
-        // make them <= 2^24, so we don't overflow in fixmul
-        numer = numer << 8 >> 8;
-        denom = denom << 8 >> 8;
-
-        result = SkFixedMul(numer, denom);
-        SkFixed r2 = symmetric_fixmul(numer, denom);
-        //        SkASSERT(result == r2);
-
-        result = SkFixedMul(numer, numer);
-        r2 = SkFixedSquare(numer);
-        REPORTER_ASSERT(reporter, result == r2);
     }
-#endif
 
     test_blend(reporter);
 
diff --git a/tests/Sk64Test.cpp b/tests/Sk64Test.cpp
index 589801b..1777d24 100644
--- a/tests/Sk64Test.cpp
+++ b/tests/Sk64Test.cpp
@@ -25,14 +25,9 @@
     REPORTER_ASSERT(reporter, a.getSign() == table.sign);
 }
 
-#ifdef SkLONGLONG
-    static SkLONGLONG asLL(const Sk64& a)
-    {
-        return ((SkLONGLONG)a.fHi << 32) | a.fLo;
-    }
-#endif
+void Sk64::UnitTestWithReporter(void* reporterParam) {
+    skiatest::Reporter* reporter = (skiatest::Reporter*)reporterParam;
 
-DEF_TEST(Sk64Test, reporter) {
     enum BoolTests {
         kZero_BoolTest,
         kPos_BoolTest,
@@ -96,9 +91,7 @@
         REPORTER_ASSERT(reporter, c.get32() == aa - bb);
     }
 
-#ifdef SkLONGLONG
-    for (i = 0; i < 1000; i++)
-    {
+    for (i = 0; i < 1000; i++) {
         rand.next64(&a); //a.fHi >>= 1; // avoid overflow
         rand.next64(&b); //b.fHi >>= 1; // avoid overflow
 
@@ -113,8 +106,8 @@
             b.fHi = 0;
         }
 
-        SkLONGLONG aa = asLL(a);
-        SkLONGLONG bb = asLL(b);
+        int64_t aa = a.as64();
+        int64_t bb = b.as64();
 
         REPORTER_ASSERT(reporter, (a < b) == (aa < bb));
         REPORTER_ASSERT(reporter, (a <= b) == (aa <= bb));
@@ -124,31 +117,31 @@
         REPORTER_ASSERT(reporter, (a != b) == (aa != bb));
 
         c = a; c.add(b);
-        REPORTER_ASSERT(reporter, asLL(c) == aa + bb);
+        REPORTER_ASSERT(reporter, c.as64() == aa + bb);
         c = a; c.sub(b);
-        REPORTER_ASSERT(reporter, asLL(c) == aa - bb);
+        REPORTER_ASSERT(reporter, c.as64() == aa - bb);
         c = a; c.rsub(b);
-        REPORTER_ASSERT(reporter, asLL(c) == bb - aa);
+        REPORTER_ASSERT(reporter, c.as64() == bb - aa);
         c = a; c.negate();
-        REPORTER_ASSERT(reporter, asLL(c) == -aa);
+        REPORTER_ASSERT(reporter, c.as64() == -aa);
 
         int bits = rand.nextU() & 63;
         c = a; c.shiftLeft(bits);
-        REPORTER_ASSERT(reporter, asLL(c) == (aa << bits));
+        REPORTER_ASSERT(reporter, c.as64() == (aa << bits));
         c = a; c.shiftRight(bits);
-        REPORTER_ASSERT(reporter, asLL(c) == (aa >> bits));
+        REPORTER_ASSERT(reporter, c.as64() == (aa >> bits));
         c = a; c.roundRight(bits);
 
-        SkLONGLONG tmp;
+        int64_t tmp;
 
         tmp = aa;
         if (bits > 0)
-            tmp += (SkLONGLONG)1 << (bits - 1);
-        REPORTER_ASSERT(reporter, asLL(c) == (tmp >> bits));
+            tmp += (int64_t)1 << (bits - 1);
+        REPORTER_ASSERT(reporter, c.as64() == (tmp >> bits));
 
         c.setMul(a.fHi, b.fHi);
-        tmp = (SkLONGLONG)a.fHi * b.fHi;
-        REPORTER_ASSERT(reporter, asLL(c) == tmp);
+        tmp = (int64_t)a.fHi * b.fHi;
+        REPORTER_ASSERT(reporter, c.as64() == tmp);
     }
 
 
@@ -160,11 +153,11 @@
         while (denom == 0)
             denom = rand.nextS();
         wide.setMul(rand.nextS(), rand.nextS());
-        SkLONGLONG check = wide.getLongLong();
+        int64_t check = wide.getLongLong();
 
         wide.div(denom, Sk64::kTrunc_DivOption);
         check /= denom;
-        SkLONGLONG w = wide.getLongLong();
+        int64_t w = wide.getLongLong();
 
         REPORTER_ASSERT(reporter, check == w);
 
@@ -175,5 +168,8 @@
         int diff = denom - ck;
         REPORTER_ASSERT(reporter, SkAbs32(diff) <= 1);
     }
-#endif
+}
+
+DEF_TEST(Sk64Test, reporter) {
+    Sk64::UnitTestWithReporter(reporter);
 }