am 2ed52f95: Merge "Add uint reading method to BufferWithExtendableBuffer."
* commit '2ed52f95e7679388c0ce3a51d660149aa601fa77': Add uint reading method to BufferWithExtendableBuffer.main
commit
94130d0234
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@ -23,6 +23,20 @@ const int BufferWithExtendableBuffer::NEAR_BUFFER_LIMIT_THRESHOLD_PERCENTILE = 9
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// TODO: Needs to allocate larger memory corresponding to the current vector size.
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const size_t BufferWithExtendableBuffer::EXTEND_ADDITIONAL_BUFFER_SIZE_STEP = 128 * 1024;
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uint32_t BufferWithExtendableBuffer::readUintAndAdvancePosition(const int size,
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int *const pos) const {
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const bool readingPosIsInAdditionalBuffer = isInAdditionalBuffer(*pos);
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if (readingPosIsInAdditionalBuffer) {
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*pos -= mOriginalBufferSize;
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}
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const int value = ByteArrayUtils::readUintAndAdvancePosition(
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getBuffer(readingPosIsInAdditionalBuffer), size, pos);
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if (readingPosIsInAdditionalBuffer) {
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*pos += mOriginalBufferSize;
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}
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return value;
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}
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bool BufferWithExtendableBuffer::writeUintAndAdvancePosition(const uint32_t data, const int size,
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int *const pos) {
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if (!(size >= 1 && size <= 4)) {
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@ -71,6 +71,8 @@ class BufferWithExtendableBuffer {
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}
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}
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uint32_t readUintAndAdvancePosition(const int size, int *const pos) const;
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AK_FORCE_INLINE int getOriginalBufferSize() const {
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return mOriginalBufferSize;
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}
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@ -114,6 +114,24 @@ class ByteArrayUtils {
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return buffer[(*pos)++];
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}
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static AK_FORCE_INLINE int readUintAndAdvancePosition(const uint8_t *const buffer,
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const int size, int *const pos) {
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// size must be in 1 to 4.
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ASSERT(size >= 1 && size <= 4);
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switch (size) {
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case 1:
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return ByteArrayUtils::readUint8AndAdvancePosition(buffer, pos);
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case 2:
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return ByteArrayUtils::readUint16AndAdvancePosition(buffer, pos);
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case 3:
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return ByteArrayUtils::readUint24AndAdvancePosition(buffer, pos);
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case 4:
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return ByteArrayUtils::readUint32AndAdvancePosition(buffer, pos);
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default:
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return 0;
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}
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}
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/**
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* Code Point Reading
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*
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