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make the token page size be variable instead of fixed 8192

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also changed the token-page layout a little bit to remove
a not-needed field.

This reduces the number of malloc()/free() calls substantially
with minimal increase in memory consumption (~2%).
For the tail of large sources, the number of malloc calls goes
typically from ~10000 to ~100 (e.g.: bryce_big.jpg: 22711 -> 105)

Change-Id: Ib847f41e618ed8c303d26b76da982fbc48de45b9
This commit is contained in:
skal
2014-05-05 14:26:14 -07:00
parent f948d08c81
commit 5fe628d35d
3 changed files with 38 additions and 20 deletions
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6
src/enc/vp8enci.h
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@ -363,12 +363,14 @@ typedef struct {
VP8Tokens* pages_; // first page
VP8Tokens** last_page_; // last page
uint16_t* tokens_; // set to (*last_page_)->tokens_
int left_; // how many free tokens left before the page is full.
int left_; // how many free tokens left before the page is full
int page_size_; // number of tokens per page
#endif
int error_; // true in case of malloc error
} VP8TBuffer;
void VP8TBufferInit(VP8TBuffer* const b); // initialize an empty buffer
// initialize an empty buffer
void VP8TBufferInit(VP8TBuffer* const b, int page_size);
void VP8TBufferClear(VP8TBuffer* const b); // de-allocate pages memory
#if !defined(DISABLE_TOKEN_BUFFER)