49 static BROTLI_INLINE void RingBufferInit(RingBuffer* rb) {  in RingBufferInit()  argument
50   rb->cur_size_ = 0;  in RingBufferInit()
51   rb->pos_ = 0;  in RingBufferInit()
52   rb->data_ = 0;  in RingBufferInit()
53   rb->buffer_ = 0;  in RingBufferInit()
57     const BrotliEncoderParams* params, RingBuffer* rb) {  in RingBufferSetup()  argument
60   *(uint32_t*)&rb->size_ = 1u << window_bits;  in RingBufferSetup()
61   *(uint32_t*)&rb->mask_ = (1u << window_bits) - 1;  in RingBufferSetup()
62   *(uint32_t*)&rb->tail_size_ = 1u << tail_bits;  in RingBufferSetup()
63   *(uint32_t*)&rb->total_size_ = rb->size_ + rb->tail_size_;  in RingBufferSetup()
66 static BROTLI_INLINE void RingBufferFree(MemoryManager* m, RingBuffer* rb) {  in RingBufferFree()  argument
67   BROTLI_FREE(m, rb->data_);  in RingBufferFree()
73     MemoryManager* m, const uint32_t buflen, RingBuffer* rb) {  in RingBufferInitBuffer()  argument
79   if (rb->data_) {  in RingBufferInitBuffer()
80     memcpy(new_data, rb->data_,  in RingBufferInitBuffer()
81         2 + rb->cur_size_ + kSlackForEightByteHashingEverywhere);  in RingBufferInitBuffer()
82     BROTLI_FREE(m, rb->data_);  in RingBufferInitBuffer()
84   rb->data_ = new_data;  in RingBufferInitBuffer()
85   rb->cur_size_ = buflen;  in RingBufferInitBuffer()
86   rb->buffer_ = rb->data_ + 2;  in RingBufferInitBuffer()
87   rb->buffer_[-2] = rb->buffer_[-1] = 0;  in RingBufferInitBuffer()
89     rb->buffer_[rb->cur_size_ + i] = 0;  in RingBufferInitBuffer()
94     const uint8_t* bytes, size_t n, RingBuffer* rb) {  in RingBufferWriteTail()  argument
95   const size_t masked_pos = rb->pos_ & rb->mask_;  in RingBufferWriteTail()
96   if (BROTLI_PREDICT_FALSE(masked_pos < rb->tail_size_)) {  in RingBufferWriteTail()
98     const size_t p = rb->size_ + masked_pos;  in RingBufferWriteTail()
99     memcpy(&rb->buffer_[p], bytes,  in RingBufferWriteTail()
100         BROTLI_MIN(size_t, n, rb->tail_size_ - masked_pos));  in RingBufferWriteTail()
106     MemoryManager* m, const uint8_t* bytes, size_t n, RingBuffer* rb) {  in RingBufferWrite()  argument
107   if (rb->pos_ == 0 && n < rb->tail_size_) {  in RingBufferWrite()
114     rb->pos_ = (uint32_t)n;  in RingBufferWrite()
115     RingBufferInitBuffer(m, rb->pos_, rb);  in RingBufferWrite()
117     memcpy(rb->buffer_, bytes, n);  in RingBufferWrite()
120   if (rb->cur_size_ < rb->total_size_) {  in RingBufferWrite()
122     RingBufferInitBuffer(m, rb->total_size_, rb);  in RingBufferWrite()
126     rb->buffer_[rb->size_ - 2] = 0;  in RingBufferWrite()
127     rb->buffer_[rb->size_ - 1] = 0;  in RingBufferWrite()
130     rb->buffer_[rb->size_] = 241;  in RingBufferWrite()
133     const size_t masked_pos = rb->pos_ & rb->mask_;  in RingBufferWrite()
136     RingBufferWriteTail(bytes, n, rb);  in RingBufferWrite()
137     if (BROTLI_PREDICT_TRUE(masked_pos + n <= rb->size_)) {  in RingBufferWrite()
139       memcpy(&rb->buffer_[masked_pos], bytes, n);  in RingBufferWrite()
143       memcpy(&rb->buffer_[masked_pos], bytes,  in RingBufferWrite()
144              BROTLI_MIN(size_t, n, rb->total_size_ - masked_pos));  in RingBufferWrite()
146       memcpy(&rb->buffer_[0], bytes + (rb->size_ - masked_pos),  in RingBufferWrite()
147              n - (rb->size_ - masked_pos));  in RingBufferWrite()
151     BROTLI_BOOL not_first_lap = (rb->pos_ & (1u << 31)) != 0;  in RingBufferWrite()
153     rb->buffer_[-2] = rb->buffer_[rb->size_ - 2];  in RingBufferWrite()
154     rb->buffer_[-1] = rb->buffer_[rb->size_ - 1];  in RingBufferWrite()
155     rb->pos_ = (rb->pos_ & rb_pos_mask) + (uint32_t)(n & rb_pos_mask);  in RingBufferWrite()
158       rb->pos_ |= 1u << 31;  in RingBufferWrite()