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Unified Diff: include/gpu/GrBinHashKey.h

Issue 861323002: Remove GrBinHashKey (Closed) Base URL: https://skia.googlesource.com/skia.git@content
Patch Set: Created 5 years, 11 months ago
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Index: include/gpu/GrBinHashKey.h
diff --git a/include/gpu/GrBinHashKey.h b/include/gpu/GrBinHashKey.h
deleted file mode 100644
index 585a1a1c018850503b393e4e8cd9741ca3fb839a..0000000000000000000000000000000000000000
--- a/include/gpu/GrBinHashKey.h
+++ /dev/null
@@ -1,102 +0,0 @@
-
-/*
- * Copyright 2011 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-
-#ifndef GrBinHashKey_DEFINED
-#define GrBinHashKey_DEFINED
-
-#include "GrTypes.h"
-
-/**
- * GrBinHashKey is a hash key class that can take a data chunk of any predetermined
- * length. The hash function used is the One-at-a-Time Hash
- * (http://burtleburtle.net/bob/hash/doobs.html).
- */
-template<size_t KEY_SIZE>
-class GrBinHashKey {
-public:
- enum { kKeySize = KEY_SIZE };
-
- GrBinHashKey() {
- this->reset();
- }
-
- void reset() {
- fHash = 0;
-#ifdef SK_DEBUG
- fIsValid = false;
-#endif
- }
-
- void setKeyData(const uint32_t* SK_RESTRICT data) {
- SK_COMPILE_ASSERT(KEY_SIZE % 4 == 0, key_size_mismatch);
- memcpy(&fData, data, KEY_SIZE);
-
- uint32_t hash = 0;
- size_t len = KEY_SIZE;
- while (len >= 4) {
- hash += *data++;
- hash += (hash << 10);
- hash ^= (hash >> 6);
- len -= 4;
- }
- hash += (hash << 3);
- hash ^= (hash >> 11);
- hash += (hash << 15);
-#ifdef SK_DEBUG
- fIsValid = true;
-#endif
- fHash = hash;
- }
-
- bool operator==(const GrBinHashKey<KEY_SIZE>& key) const {
- SkASSERT(fIsValid && key.fIsValid);
- if (fHash != key.fHash) {
- return false;
- }
- for (size_t i = 0; i < SK_ARRAY_COUNT(fData); ++i) {
- if (fData[i] != key.fData[i]) {
- return false;
- }
- }
- return true;
- }
-
- bool operator<(const GrBinHashKey<KEY_SIZE>& key) const {
- SkASSERT(fIsValid && key.fIsValid);
- for (size_t i = 0; i < SK_ARRAY_COUNT(fData); ++i) {
- if (fData[i] < key.fData[i]) {
- return true;
- } else if (fData[i] > key.fData[i]) {
- return false;
- }
- }
- return false;
- }
-
- uint32_t getHash() const {
- SkASSERT(fIsValid);
- return fHash;
- }
-
- const uint8_t* getData() const {
- SkASSERT(fIsValid);
- return reinterpret_cast<const uint8_t*>(fData);
- }
-
-private:
- uint32_t fHash;
- uint32_t fData[KEY_SIZE / sizeof(uint32_t)]; // Buffer for key storage.
-
-#ifdef SK_DEBUG
-public:
- bool fIsValid;
-#endif
-};
-
-#endif
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