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Diffstat (limited to 'ext/tarkin/bitcoder.h')
-rw-r--r--ext/tarkin/bitcoder.h152
1 files changed, 76 insertions, 76 deletions
diff --git a/ext/tarkin/bitcoder.h b/ext/tarkin/bitcoder.h
index fe1e6eaee..312cd8871 100644
--- a/ext/tarkin/bitcoder.h
+++ b/ext/tarkin/bitcoder.h
@@ -15,7 +15,7 @@
#define ENTROPY_ENCODER_FLUSH(coder) bitcoder_flush(coder)
#define ENTROPY_DECODER_INIT(coder,bitstream,limit) \
bitcoder_decoder_init(coder,bitstream,limit)
-#define ENTROPY_DECODER_DONE(coder) /* nothing to do ... */
+#define ENTROPY_DECODER_DONE(coder) /* nothing to do ... */
#define ENTROPY_CODER_BITSTREAM(coder) (coder)->bitstream
#define ENTROPY_CODER_SYMBOL(coder) 1
@@ -25,107 +25,106 @@
#endif
-typedef struct
-{
- int32_t bit_count; /* number of valid bits in byte */
- uint8_t byte; /* buffer to save bits */
- uint32_t byte_count; /* number of bytes written */
- uint8_t *bitstream;
- uint32_t limit; /* don't write more bytes to bitstream ... */
- int eos; /* end of stream reached */
+typedef struct {
+ int32_t bit_count; /* number of valid bits in byte */
+ uint8_t byte; /* buffer to save bits */
+ uint32_t byte_count; /* number of bytes written */
+ uint8_t *bitstream;
+ uint32_t limit; /* don't write more bytes to bitstream ... */
+ int eos; /* end of stream reached */
} BitCoderState;
-static inline void
-bitcoder_encoder_init (BitCoderState * s, uint32_t limit)
+static inline
+void bitcoder_encoder_init (BitCoderState *s, uint32_t limit)
{
- s->bit_count = 0;
- s->byte = 0;
- s->byte_count = 0;
- s->bitstream = (uint8_t *) MALLOC (limit);
- s->limit = limit;
- s->eos = 0;
+ s->bit_count = 0;
+ s->byte = 0;
+ s->byte_count = 0;
+ s->bitstream = (uint8_t*) MALLOC (limit);
+ s->limit = limit;
+ s->eos = 0;
}
-static inline void
-bitcoder_encoder_done (BitCoderState * s)
+static inline
+void bitcoder_encoder_done (BitCoderState *s)
{
- FREE (s->bitstream);
+ FREE (s->bitstream);
}
-static inline void
-bitcoder_decoder_init (BitCoderState * s, uint8_t * bitstream, uint32_t limit)
+static inline
+void bitcoder_decoder_init (BitCoderState *s, uint8_t *bitstream, uint32_t limit)
{
- s->bit_count = -1;
- s->byte = 0;
- s->byte_count = 0;
- s->bitstream = bitstream;
- s->limit = limit;
- s->eos = 0;
+ s->bit_count = -1;
+ s->byte = 0;
+ s->byte_count = 0;
+ s->bitstream = bitstream;
+ s->limit = limit;
+ s->eos = 0;
}
-static inline uint32_t
-bitcoder_flush (BitCoderState * s)
+static inline
+uint32_t bitcoder_flush (BitCoderState *s)
{
- if (s->bit_count > 0 && s->byte_count < s->limit)
- s->bitstream[s->byte_count++] = s->byte << (8 - s->bit_count);
+ if (s->bit_count > 0 && s->byte_count < s->limit)
+ s->bitstream [s->byte_count++] = s->byte << (8 - s->bit_count);
/*printf ("%s: %i bytes written.\n", __FUNCTION__, s->byte_count); */
/*printf ("%s: last bit %i\n", __FUNCTION__, s->bit_count); */
- return s->byte_count;
+ return s->byte_count;
}
-static inline void
-bitcoder_write_bit (BitCoderState * s, int bit)
+static inline
+void bitcoder_write_bit (BitCoderState *s, int bit)
{
- s->byte <<= 1;
- s->byte |= bit & 1;
-
- s->bit_count++;
-
- if (s->bit_count == 8) {
- if (s->byte_count < s->limit) {
- s->bitstream[s->byte_count++] = s->byte;
- s->bit_count = 0;
- } else {
- s->eos = 1;
- }
- }
+ s->byte <<= 1;
+ s->byte |= bit & 1;
+
+ s->bit_count++;
+
+ if (s->bit_count == 8) {
+ if (s->byte_count < s->limit) {
+ s->bitstream [s->byte_count++] = s->byte;
+ s->bit_count = 0;
+ } else {
+ s->eos = 1;
+ }
+ }
}
-static inline int
-bitcoder_read_bit (BitCoderState * s)
+static inline
+int bitcoder_read_bit (BitCoderState *s)
{
- int ret;
+ int ret;
- if (s->bit_count <= 0) {
- if (!s->bitstream) {
- s->eos = 1;
- return 0;
- }
+ if (s->bit_count <= 0) {
+ if (!s->bitstream) {
+ s->eos = 1;
+ return 0;
+ }
- if (s->byte_count < s->limit) {
- s->byte = s->bitstream[s->byte_count++];
- } else {
- s->eos = 1;
- s->byte = 0;
- }
+ if (s->byte_count < s->limit) {
+ s->byte = s->bitstream [s->byte_count++];
+ } else {
+ s->eos = 1;
+ s->byte = 0;
+ }
- s->bit_count = 8;
- }
+ s->bit_count = 8;
+ }
- ret = s->byte >> 7;
- s->byte <<= 1;
- s->bit_count--;
+ ret = s->byte >> 7;
+ s->byte <<= 1;
+ s->bit_count--;
- return ret & 1;
+ return ret & 1;
}
@@ -133,16 +132,17 @@ bitcoder_read_bit (BitCoderState * s)
-static inline void
-bit_print (TYPE byte)
+static inline
+void bit_print (TYPE byte)
{
- int bit = 8 * sizeof (TYPE);
+ int bit = 8*sizeof(TYPE);
- do {
- bit--;
- printf ((byte & (1 << bit)) ? "1" : "0");
- } while (bit);
- printf ("\n");
+ do {
+ bit--;
+ printf ((byte & (1 << bit)) ? "1" : "0");
+ } while (bit);
+ printf ("\n");
}
#endif
+