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Diffstat (limited to 'drivers/webpold/utils/bit_writer.h')
-rw-r--r--drivers/webpold/utils/bit_writer.h123
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diff --git a/drivers/webpold/utils/bit_writer.h b/drivers/webpold/utils/bit_writer.h
deleted file mode 100644
index 57f39b11b1..0000000000
--- a/drivers/webpold/utils/bit_writer.h
+++ /dev/null
@@ -1,123 +0,0 @@
-// Copyright 2011 Google Inc. All Rights Reserved.
-//
-// This code is licensed under the same terms as WebM:
-// Software License Agreement: http://www.webmproject.org/license/software/
-// Additional IP Rights Grant: http://www.webmproject.org/license/additional/
-// -----------------------------------------------------------------------------
-//
-// Bit writing and boolean coder
-//
-// Author: Skal (pascal.massimino@gmail.com)
-
-#ifndef WEBP_UTILS_BIT_WRITER_H_
-#define WEBP_UTILS_BIT_WRITER_H_
-
-#include "../types.h"
-
-#if defined(__cplusplus) || defined(c_plusplus)
-extern "C" {
-#endif
-
-//------------------------------------------------------------------------------
-// Bit-writing
-
-typedef struct VP8BitWriter VP8BitWriter;
-struct VP8BitWriter {
- int32_t range_; // range-1
- int32_t value_;
- int run_; // number of outstanding bits
- int nb_bits_; // number of pending bits
- uint8_t* buf_; // internal buffer. Re-allocated regularly. Not owned.
- size_t pos_;
- size_t max_pos_;
- int error_; // true in case of error
-};
-
-// Initialize the object. Allocates some initial memory based on expected_size.
-int VP8BitWriterInit(VP8BitWriter* const bw, size_t expected_size);
-// Finalize the bitstream coding. Returns a pointer to the internal buffer.
-uint8_t* VP8BitWriterFinish(VP8BitWriter* const bw);
-// Release any pending memory and zeroes the object. Not a mandatory call.
-// Only useful in case of error, when the internal buffer hasn't been grabbed!
-void VP8BitWriterWipeOut(VP8BitWriter* const bw);
-
-int VP8PutBit(VP8BitWriter* const bw, int bit, int prob);
-int VP8PutBitUniform(VP8BitWriter* const bw, int bit);
-void VP8PutValue(VP8BitWriter* const bw, int value, int nb_bits);
-void VP8PutSignedValue(VP8BitWriter* const bw, int value, int nb_bits);
-
-// Appends some bytes to the internal buffer. Data is copied.
-int VP8BitWriterAppend(VP8BitWriter* const bw,
- const uint8_t* data, size_t size);
-
-// return approximate write position (in bits)
-static WEBP_INLINE uint64_t VP8BitWriterPos(const VP8BitWriter* const bw) {
- return (uint64_t)(bw->pos_ + bw->run_) * 8 + 8 + bw->nb_bits_;
-}
-
-// Returns a pointer to the internal buffer.
-static WEBP_INLINE uint8_t* VP8BitWriterBuf(const VP8BitWriter* const bw) {
- return bw->buf_;
-}
-// Returns the size of the internal buffer.
-static WEBP_INLINE size_t VP8BitWriterSize(const VP8BitWriter* const bw) {
- return bw->pos_;
-}
-
-//------------------------------------------------------------------------------
-// VP8LBitWriter
-// TODO(vikasa): VP8LBitWriter is copied as-is from lossless code. There's scope
-// of re-using VP8BitWriter. Will evaluate once basic lossless encoder is
-// implemented.
-
-typedef struct {
- uint8_t* buf_;
- size_t bit_pos_;
- size_t max_bytes_;
-
- // After all bits are written, the caller must observe the state of
- // error_. A value of 1 indicates that a memory allocation failure
- // has happened during bit writing. A value of 0 indicates successful
- // writing of bits.
- int error_;
-} VP8LBitWriter;
-
-static WEBP_INLINE size_t VP8LBitWriterNumBytes(VP8LBitWriter* const bw) {
- return (bw->bit_pos_ + 7) >> 3;
-}
-
-static WEBP_INLINE uint8_t* VP8LBitWriterFinish(VP8LBitWriter* const bw) {
- return bw->buf_;
-}
-
-// Returns 0 in case of memory allocation error.
-int VP8LBitWriterInit(VP8LBitWriter* const bw, size_t expected_size);
-
-void VP8LBitWriterDestroy(VP8LBitWriter* const bw);
-
-// This function writes bits into bytes in increasing addresses, and within
-// a byte least-significant-bit first.
-//
-// The function can write up to 16 bits in one go with WriteBits
-// Example: let's assume that 3 bits (Rs below) have been written already:
-//
-// BYTE-0 BYTE+1 BYTE+2
-//
-// 0000 0RRR 0000 0000 0000 0000
-//
-// Now, we could write 5 or less bits in MSB by just sifting by 3
-// and OR'ing to BYTE-0.
-//
-// For n bits, we take the last 5 bytes, OR that with high bits in BYTE-0,
-// and locate the rest in BYTE+1 and BYTE+2.
-//
-// VP8LBitWriter's error_ flag is set in case of memory allocation error.
-void VP8LWriteBits(VP8LBitWriter* const bw, int n_bits, uint32_t bits);
-
-//------------------------------------------------------------------------------
-
-#if defined(__cplusplus) || defined(c_plusplus)
-} // extern "C"
-#endif
-
-#endif /* WEBP_UTILS_BIT_WRITER_H_ */