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libbpg-0.9.5

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King_DuckZ 2015-01-16 13:48:11 +01:00
parent 6e56352f86
commit 357f186837
35 changed files with 3022 additions and 2134 deletions
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29
libbpg.h
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@ -46,15 +46,17 @@ typedef enum {
} BPGColorSpaceEnum;
typedef struct {
int width;
int height;
int format; /* see BPGImageFormatEnum */
int has_alpha; /* TRUE if an alpha plane is present */
int color_space; /* see BPGColorSpaceEnum */
int bit_depth;
int premultiplied_alpha; /* TRUE if the color is alpha premultiplied */
int has_w_plane; /* TRUE if a W plane is present (for CMYK encoding) */
int limited_range; /* TRUE if limited range for the color */
uint32_t width;
uint32_t height;
uint8_t format; /* see BPGImageFormatEnum */
uint8_t has_alpha; /* TRUE if an alpha plane is present */
uint8_t color_space; /* see BPGColorSpaceEnum */
uint8_t bit_depth;
uint8_t premultiplied_alpha; /* TRUE if the color is alpha premultiplied */
uint8_t has_w_plane; /* TRUE if a W plane is present (for CMYK encoding) */
uint8_t limited_range; /* TRUE if limited range for the color */
uint8_t has_animation; /* TRUE if the image contains animations */
uint16_t loop_count; /* animations: number of loop, 0 = infinity */
} BPGImageInfo;
typedef enum {
@ -62,6 +64,7 @@ typedef enum {
BPG_EXTENSION_TAG_ICCP = 2,
BPG_EXTENSION_TAG_XMP = 3,
BPG_EXTENSION_TAG_THUMBNAIL = 4,
BPG_EXTENSION_TAG_ANIM_CONTROL = 5,
} BPGExtensionTagEnum;
typedef struct BPGExtensionData {
@ -76,6 +79,8 @@ typedef enum {
BPG_OUTPUT_FORMAT_RGBA32, /* not premultiplied alpha */
BPG_OUTPUT_FORMAT_RGB48,
BPG_OUTPUT_FORMAT_RGBA64, /* not premultiplied alpha */
BPG_OUTPUT_FORMAT_CMYK32,
BPG_OUTPUT_FORMAT_CMYK64,
} BPGDecoderOutputFormat;
#define BPG_DECODER_INFO_BUF_SIZE 16
@ -100,6 +105,10 @@ int bpg_decoder_get_info(BPGDecoderContext *s, BPGImageInfo *p);
/* return 0 if 0K, < 0 if error */
int bpg_decoder_start(BPGDecoderContext *s, BPGDecoderOutputFormat out_fmt);
/* return the frame delay for animations as a fraction (*pnum) / (*pden)
in seconds. In case there is no animation, 0 / 1 is returned. */
void bpg_decoder_get_frame_duration(BPGDecoderContext *s, int *pnum, int *pden);
/* return 0 if 0K, < 0 if error */
int bpg_decoder_get_line(BPGDecoderContext *s, void *buf);
@ -115,6 +124,8 @@ uint8_t *bpg_decoder_get_data(BPGDecoderContext *s, int *pline_size, int plane);
first element of the list is returned in *pfirst_md. The list must
be freed with bpg_decoder_free_extension_data().
BPGImageInfo.loop_count is only set if extension data are parsed.
Return 0 if OK, < 0 if unrecognized data. */
int bpg_decoder_get_info_from_buf(BPGImageInfo *p,
BPGExtensionData **pfirst_md,