d9187c085b
This reverts commit 3b347232bc.
Reason for revert: tree done gone red.
Original change's description:
> SkMath takes some functions from from SkTypes
>
> Moved to include/core/SkMath.h: Sk{Is|}Align{2|4|8|Ptr}, SkLeftShift,
> SkAbs{32|}, SkM{ax|in}32 SkTM{in|ax}, SkTClamp, SkFastMin32, SkTPin.
>
> Change-Id: Ibcc07be0fc3677731048e7cc86006e7aa493cb92
> Reviewed-on: https://skia-review.googlesource.com/133381
> Auto-Submit: Hal Canary <halcanary@google.com>
> Reviewed-by: Ben Wagner <bungeman@google.com>
> Commit-Queue: Hal Canary <halcanary@google.com>
TBR=mtklein@google.com,halcanary@google.com,bungeman@google.com,reed@google.com
Change-Id: I44073cf397e2a3a6a941a90f0aa63c6396d4c742
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/152587
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>
87 lines
2.2 KiB
C++
87 lines
2.2 KiB
C++
/*
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* Copyright 2016 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "SkData.h"
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#include "SkStream.h"
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#ifndef FakeStreams_DEFINED
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#define FakeStreams_DEFINED
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// Stream that is not an asset stream (!hasPosition() or !hasLength())
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class NotAssetMemStream : public SkStream {
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public:
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NotAssetMemStream(sk_sp<SkData> data) : fStream(std::move(data)) {}
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bool hasPosition() const override {
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return false;
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}
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bool hasLength() const override {
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return false;
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}
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size_t peek(void* buf, size_t bytes) const override {
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return fStream.peek(buf, bytes);
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}
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size_t read(void* buf, size_t bytes) override {
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return fStream.read(buf, bytes);
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}
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bool rewind() override {
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return fStream.rewind();
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}
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bool isAtEnd() const override {
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return fStream.isAtEnd();
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}
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private:
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SkMemoryStream fStream;
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};
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/*
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* Represents a stream without all of its data.
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*/
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class HaltingStream : public SkStream {
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public:
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HaltingStream(sk_sp<SkData> data, size_t initialLimit)
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: fTotalSize(data->size())
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, fLimit(initialLimit)
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, fStream(std::move(data))
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{}
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void addNewData(size_t extra) {
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fLimit = SkTMin(fTotalSize, fLimit + extra);
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}
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size_t read(void* buffer, size_t size) override {
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if (fStream.getPosition() + size > fLimit) {
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size = fLimit - fStream.getPosition();
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}
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return fStream.read(buffer, size);
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}
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bool isAtEnd() const override {
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return fStream.isAtEnd();
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}
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bool hasLength() const override { return true; }
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size_t getLength() const override { return fLimit; }
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bool hasPosition() const override { return true; }
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size_t getPosition() const override { return fStream.getPosition(); }
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bool rewind() override { return fStream.rewind(); }
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bool move(long offset) override { return fStream.move(offset); }
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bool seek(size_t position) override { return fStream.seek(position); }
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bool isAllDataReceived() const { return fLimit == fTotalSize; }
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private:
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const size_t fTotalSize;
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size_t fLimit;
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SkMemoryStream fStream;
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};
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#endif // FakeStreams_DEFINED
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