Revert "Remove SK_MaxSizeT, SK_M{in|ax}U{16|32}, #defines."

This reverts commit e1bc7de7c0.

Reason for revert: chrome used it

Original change's description:
> Remove SK_MaxSizeT, SK_M{in|ax}U{16|32}, #defines.
> 
> sed 's/SK_MaxSizeT/SIZE_MAX/g'
> sed 's/SK_MaxU32/UINT32_MAX/g'
> sed 's/SK_MaxU16/UINT16_MAX/g'
> 
> SK_MinU32 and SK_MinU16 were unused
> 
> Change-Id: I6b6c824df47b05bde7e73b13a58e851a5f63fe0e
> Reviewed-on: https://skia-review.googlesource.com/134607
> Commit-Queue: Hal Canary <halcanary@google.com>
> Reviewed-by: Ben Wagner <bungeman@google.com>

TBR=halcanary@google.com,bungeman@google.com,reed@google.com

Change-Id: I1e2c440dcf9f59bf87c1fea113248cd5136f7519
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/134921
Reviewed-by: Hal Canary <halcanary@google.com>
Commit-Queue: Hal Canary <halcanary@google.com>

include/core/SkImageInfo.h

@@ -555,7 +555,7 @@ public:
         and rowBytes. rowBytes is assumed to be at least as large as minRowBytes().
 
         Returns zero if height is zero.
-        Returns SIZE_MAX if answer exceeds the range of size_t.
+        Returns SK_MaxSizeT if answer exceeds the range of size_t.
 
         @param rowBytes  size of pixel row or larger
         @return          memory required by pixel buffer
@@ -566,7 +566,7 @@ public:
         SkColorType. Uses minRowBytes() to compute bytes for pixel row.
 
         Returns zero if height is zero.
-        Returns SIZE_MAX if answer exceeds the range of size_t.
+        Returns SK_MaxSizeT if answer exceeds the range of size_t.
 
         @return  least memory required by pixel buffer
     */
@@ -574,14 +574,14 @@ public:
         return this->computeByteSize(this->minRowBytes());
     }
 
-    /** Returns true if byteSize equals SIZE_MAX. computeByteSize() and
-        computeMinByteSize() return SIZE_MAX if size_t can not hold buffer size.
+    /** Returns true if byteSize equals SK_MaxSizeT. computeByteSize() and
+        computeMinByteSize() return SK_MaxSizeT if size_t can not hold buffer size.
 
         @param byteSize  result of computeByteSize() or computeMinByteSize()
         @return          true if computeByteSize() or computeMinByteSize() result exceeds size_t
     */
     static bool ByteSizeOverflowed(size_t byteSize) {
-        return SIZE_MAX == byteSize;
+        return SK_MaxSizeT == byteSize;
     }
 
     /** Returns true if rowBytes is smaller than width times pixel size.

include/core/SkTypes.h

@@ -100,12 +100,17 @@ typedef unsigned U16CPU;
 */
 #define SkToBool(cond)  ((cond) != 0)
 
-#define SK_MaxS16   INT16_MAX
-#define SK_MinS16   -SK_MaxS16
-#define SK_MaxS32   INT32_MAX
+#define SK_MaxS16   32767
+#define SK_MinS16   -32767
+#define SK_MaxU16   0xFFFF
+#define SK_MinU16   0
+#define SK_MaxS32   0x7FFFFFFF
 #define SK_MinS32   -SK_MaxS32
-#define SK_NaN32    INT32_MIN
-static constexpr int64_t SK_MaxS64 = INT64_MAX;
+#define SK_MaxU32   0xFFFFFFFF
+#define SK_MinU32   0
+#define SK_NaN32    ((int) (1U << 31))
+#define SK_MaxSizeT SIZE_MAX
+static constexpr int64_t SK_MaxS64 = 0x7FFFFFFFFFFFFFFF;
 static constexpr int64_t SK_MinS64 = -SK_MaxS64;
 
 static inline constexpr int32_t SkLeftShift(int32_t value, int32_t shift) {

src/core/SkImageInfo.cpp

@@ -67,7 +67,7 @@ size_t SkImageInfo::computeByteSize(size_t rowBytes) const {
     SkSafeMath safe;
     size_t bytes = safe.add(safe.mul(safe.addInt(fHeight, -1), rowBytes),
                             safe.mul(fWidth, this->bytesPerPixel()));
-    return safe ? bytes : SIZE_MAX;
+    return safe ? bytes : SK_MaxSizeT;
 }
 
 SkImageInfo SkImageInfo::MakeS32(int width, int height, SkAlphaType at) {

src/core/SkMath.cpp

@@ -89,11 +89,11 @@ float SkScalarSinCos(float radians, float* cosValue) {
 size_t SkSafeMath::Add(size_t x, size_t y) {
     SkSafeMath tmp;
     size_t sum = tmp.add(x, y);
-    return tmp.ok() ? sum : SIZE_MAX;
+    return tmp.ok() ? sum : SK_MaxSizeT;
 }
 
 size_t SkSafeMath::Mul(size_t x, size_t y) {
     SkSafeMath tmp;
     size_t prod = tmp.mul(x, y);
-    return tmp.ok() ? prod : SIZE_MAX;
+    return tmp.ok() ? prod : SK_MaxSizeT;
 }

src/core/SkResourceCache.cpp

@@ -197,7 +197,7 @@ void SkResourceCache::purgeAsNeeded(bool forcePurge) {
 
     if (fDiscardableFactory) {
         countLimit = SK_DISCARDABLEMEMORY_SCALEDIMAGECACHE_COUNT_LIMIT;
-        byteLimit = UINT32_MAX;  // no limit based on bytes
+        byteLimit = SK_MaxU32;  // no limit based on bytes
     } else {
         countLimit = SK_MaxS32; // no limit based on count
         byteLimit = fTotalByteLimit;

src/core/SkString.cpp

@@ -181,18 +181,18 @@ const SkString::Rec SkString::gEmptyRec(0, 0);
 
 static uint32_t trim_size_t_to_u32(size_t value) {
     if (sizeof(size_t) > sizeof(uint32_t)) {
-        if (value > UINT32_MAX) {
-            value = UINT32_MAX;
+        if (value > SK_MaxU32) {
+            value = SK_MaxU32;
         }
     }
     return (uint32_t)value;
 }
 
 static size_t check_add32(size_t base, size_t extra) {
-    SkASSERT(base <= UINT32_MAX);
+    SkASSERT(base <= SK_MaxU32);
     if (sizeof(size_t) > sizeof(uint32_t)) {
-        if (base + extra > UINT32_MAX) {
-            extra = UINT32_MAX - base;
+        if (base + extra > SK_MaxU32) {
+            extra = SK_MaxU32 - base;
         }
     }
     return extra;

src/core/SkStringUtils.cpp

@@ -63,7 +63,7 @@ SkString SkStringFromUTF16(const uint16_t* src, size_t count) {
             const uint16_t* last = ptr;
             SkUnichar u = SkUTF16_NextUnichar(&ptr);
             size_t s = SkUTF8_FromUnichar(u);
-            if (n > UINT32_MAX - s) {
+            if (n > SK_MaxU32 - s) {
                 end = last;  // truncate input string
                 break;
             }

src/core/SkVertices.cpp

@@ -45,7 +45,7 @@ struct SkVertices::Sizes {
                 numFanTris = vertexCount - 2;
                 // By forcing this to become indexed we are adding a constraint to the maximum
                 // number of vertices.
-                if (vertexCount > (UINT16_MAX + 1)) {
+                if (vertexCount > (SK_MaxU16 + 1)) {
                     sk_bzero(this, sizeof(*this));
                     return;
                 }

src/gpu/GrProgramDesc.cpp

@@ -102,7 +102,7 @@ static bool gen_meta_key(const GrResourceIOProcessor& proc,
     uint32_t classID = proc.classID();
 
     // Currently we allow 16 bits for the class id and the overall processor key size.
-    static const uint32_t kMetaKeyInvalidMask = ~((uint32_t)UINT16_MAX);
+    static const uint32_t kMetaKeyInvalidMask = ~((uint32_t)SK_MaxU16);
     if ((processorKeySize | classID) & kMetaKeyInvalidMask) {
         return false;
     }
@@ -122,7 +122,7 @@ static bool gen_meta_key(const GrXferProcessor& xp,
     uint32_t classID = xp.classID();
 
     // Currently we allow 16 bits for the class id and the overall processor key size.
-    static const uint32_t kMetaKeyInvalidMask = ~((uint32_t)UINT16_MAX);
+    static const uint32_t kMetaKeyInvalidMask = ~((uint32_t)SK_MaxU16);
     if ((processorKeySize | classID) & kMetaKeyInvalidMask) {
         return false;
     }

src/gpu/GrResourceCache.cpp

@@ -29,7 +29,7 @@ GrScratchKey::ResourceType GrScratchKey::GenerateResourceType() {
     static int32_t gType = INHERITED::kInvalidDomain + 1;
 
     int32_t type = sk_atomic_inc(&gType);
-    if (type > UINT16_MAX) {
+    if (type > SK_MaxU16) {
         SK_ABORT("Too many Resource Types");
     }
 
@@ -40,7 +40,7 @@ GrUniqueKey::Domain GrUniqueKey::GenerateDomain() {
     static int32_t gDomain = INHERITED::kInvalidDomain + 1;
 
     int32_t domain = sk_atomic_inc(&gDomain);
-    if (domain > UINT16_MAX) {
+    if (domain > SK_MaxU16) {
         SK_ABORT("Too many GrUniqueKey Domains");
     }
 

src/gpu/effects/GrPorterDuffXferProcessor.cpp

@@ -619,7 +619,7 @@ private:
 
 class GLPDLCDXferProcessor : public GrGLSLXferProcessor {
 public:
-    GLPDLCDXferProcessor(const GrProcessor&) : fLastAlpha(UINT32_MAX) {}
+    GLPDLCDXferProcessor(const GrProcessor&) : fLastAlpha(SK_MaxU32) {}
 
     ~GLPDLCDXferProcessor() override {}
 

src/gpu/effects/GrXfermodeFragmentProcessor.cpp

@@ -395,7 +395,7 @@ private:
     }
 
     void onGetGLSLProcessorKey(const GrShaderCaps& caps, GrProcessorKeyBuilder* b) const override {
-        GR_STATIC_ASSERT(((int)SkBlendMode::kLastMode & UINT16_MAX) == (int)SkBlendMode::kLastMode);
+        GR_STATIC_ASSERT(((int)SkBlendMode::kLastMode & SK_MaxU16) == (int)SkBlendMode::kLastMode);
         b->add32((int)fMode | (fChild << 16));
     }
 

src/gpu/ops/GrDrawVerticesOp.cpp

@@ -276,7 +276,7 @@ bool GrDrawVerticesOp::onCombineIfPossible(GrOp* t, const GrCaps& caps) {
         return false;
     }
 
-    if (fVertexCount + that->fVertexCount > UINT16_MAX) {
+    if (fVertexCount + that->fVertexCount > SK_MaxU16) {
         return false;
     }
 
@@ -366,7 +366,7 @@ static void randomize_params(size_t count, size_t maxVertex, SkScalar min, SkSca
             colors->push_back(GrRandomColor(random));
         }
         if (hasIndices) {
-            SkASSERT(maxVertex <= UINT16_MAX);
+            SkASSERT(maxVertex <= SK_MaxU16);
             indices->push_back(random->nextULessThan((uint16_t)maxVertex));
         }
     }

src/pdf/SkPDFFont.cpp

@@ -149,7 +149,7 @@ const SkAdvancedTypefaceMetrics* SkPDFFont::GetMetrics(SkTypeface* typeface,
         return ptr->get();  // canon retains ownership.
     }
     int count = typeface->countGlyphs();
-    if (count <= 0 || count > 1 + UINT16_MAX) {
+    if (count <= 0 || count > 1 + SK_MaxU16) {
         // Cache nullptr to skip this check.  Use SkSafeUnref().
         canon->fTypefaceMetrics.set(id, nullptr);
         return nullptr;

src/ports/SkFontHost_win.cpp

@@ -169,7 +169,7 @@ static unsigned calculateGlyphCount(HDC hdc, const LOGFONT& lf) {
 
     // Binary search for glyph count.
     static const MAT2 mat2 = {{0, 1}, {0, 0}, {0, 0}, {0, 1}};
-    int32_t max = UINT16_MAX + 1;
+    int32_t max = SK_MaxU16 + 1;
     int32_t min = 0;
     GLYPHMETRICS gm;
     while (min < max) {

tests/PDFGlyphsToUnicodeTest.cpp

@@ -15,7 +15,7 @@
 #include "SkStream.h"
 #include "SkTo.h"
 
-static const int kMaximumGlyphCount = UINT16_MAX + 1;
+static const int kMaximumGlyphCount = SK_MaxU16 + 1;
 
 static bool stream_equals(const SkDynamicMemoryWStream& stream, size_t offset,
                           const char* buffer, size_t len) {

tests/ResourceCacheTest.cpp

@@ -1094,7 +1094,7 @@ static void test_timestamp_wrap(skiatest::Reporter* reporter) {
         GrGpu* gpu = context->contextPriv().getGpu();
 
         // Pick a random number of resources to add before the timestamp will wrap.
-        cache->changeTimestamp(UINT32_MAX - random.nextULessThan(kCount + 1));
+        cache->changeTimestamp(SK_MaxU32 - random.nextULessThan(kCount + 1));
 
         static const int kNumToPurge = kCount - kBudgetCnt;
 

tests/StringTest.cpp

@@ -300,7 +300,7 @@ DEF_TEST(String_Threaded, r) {
 // let us create a string with a requested length longer than we can manage.
 DEF_TEST(String_huge, r) {
     // start testing slightly below max 32
-    size_t size = UINT32_MAX - 16;
+    size_t size = SK_MaxU32 - 16;
     // See where we crash, and manually check that its at the right point.
     //
     //  To test, change the false to true

tests/VerticesTest.cpp

@@ -91,13 +91,13 @@ DEF_TEST(Vertices, reporter) {
     {
         // This has the maximum number of vertices to be rewritten as indexed triangles without
         // overflowing a 16bit index.
-        SkVertices::Builder builder(SkVertices::kTriangleFan_VertexMode, UINT16_MAX + 1, 0,
+        SkVertices::Builder builder(SkVertices::kTriangleFan_VertexMode, SK_MaxU16 + 1, 0,
                                     SkVertices::kHasColors_BuilderFlag);
         REPORTER_ASSERT(reporter, builder.isValid());
     }
     {
         // This has too many to be rewritten.
-        SkVertices::Builder builder(SkVertices::kTriangleFan_VertexMode, UINT16_MAX + 2, 0,
+        SkVertices::Builder builder(SkVertices::kTriangleFan_VertexMode, SK_MaxU16 + 2, 0,
                                     SkVertices::kHasColors_BuilderFlag);
         REPORTER_ASSERT(reporter, !builder.isValid());
     }