Rev 4680 | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4680 | right-hear | 1 | #include "fitz.h" |
| 2 | |||
| 3 | fz_buffer * |
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| 4 | fz_new_buffer(int size) |
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| 5 | { |
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| 6 | fz_buffer *b; |
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| 7 | |||
| 8 | size = size > 1 ? size : 16; |
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| 9 | |||
| 10 | b = fz_malloc(sizeof(fz_buffer)); |
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| 11 | b->refs = 1; |
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| 12 | b->data = fz_malloc(size); |
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| 13 | b->cap = size; |
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| 14 | b->len = 0; |
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| 15 | |||
| 16 | return b; |
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| 17 | } |
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| 18 | |||
| 19 | fz_buffer * |
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| 20 | fz_keep_buffer(fz_buffer *buf) |
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| 21 | { |
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| 22 | buf->refs ++; |
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| 23 | return buf; |
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| 24 | } |
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| 25 | |||
| 26 | void |
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| 27 | fz_drop_buffer(fz_buffer *buf) |
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| 28 | { |
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| 29 | if (--buf->refs == 0) |
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| 30 | { |
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| 31 | fz_free(buf->data); |
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| 32 | fz_free(buf); |
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| 33 | } |
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| 34 | } |
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| 35 | |||
| 36 | void |
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| 37 | fz_resize_buffer(fz_buffer *buf, int size) |
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| 38 | { |
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| 39 | buf->data = fz_realloc(buf->data, size, 1); |
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| 40 | buf->cap = size; |
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| 41 | if (buf->len > buf->cap) |
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| 42 | buf->len = buf->cap; |
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| 43 | } |
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| 44 | |||
| 45 | void |
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| 46 | fz_grow_buffer(fz_buffer *buf) |
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| 47 | { |
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| 48 | fz_resize_buffer(buf, (buf->cap * 3) / 2); |
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| 49 | } |