110 lines
4 KiB
C
110 lines
4 KiB
C
/*
|
|
* http://pngquant.org
|
|
*/
|
|
|
|
#ifndef LIBIMAGEQUANT_H
|
|
#define LIBIMAGEQUANT_H
|
|
|
|
#ifndef LIQ_EXPORT
|
|
#define LIQ_EXPORT extern
|
|
#endif
|
|
|
|
#define LIQ_VERSION 20401
|
|
#define LIQ_VERSION_STRING "2.4.1"
|
|
|
|
#ifndef LIQ_PRIVATE
|
|
#if defined(__GNUC__) || defined (__llvm__)
|
|
#define LIQ_PRIVATE __attribute__((visibility("hidden")))
|
|
#else
|
|
#define LIQ_PRIVATE
|
|
#endif
|
|
#endif
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#include <stddef.h>
|
|
|
|
typedef struct liq_attr liq_attr;
|
|
typedef struct liq_image liq_image;
|
|
typedef struct liq_result liq_result;
|
|
|
|
typedef struct liq_color {
|
|
unsigned char r, g, b, a;
|
|
} liq_color;
|
|
|
|
typedef struct liq_palette {
|
|
unsigned int count;
|
|
liq_color entries[256];
|
|
} liq_palette;
|
|
|
|
typedef enum liq_error {
|
|
LIQ_OK = 0,
|
|
LIQ_QUALITY_TOO_LOW = 99,
|
|
LIQ_VALUE_OUT_OF_RANGE = 100,
|
|
LIQ_OUT_OF_MEMORY,
|
|
LIQ_NOT_READY,
|
|
LIQ_BITMAP_NOT_AVAILABLE,
|
|
LIQ_BUFFER_TOO_SMALL,
|
|
LIQ_INVALID_POINTER,
|
|
} liq_error;
|
|
|
|
enum liq_ownership {LIQ_OWN_ROWS=4, LIQ_OWN_PIXELS=8};
|
|
|
|
LIQ_EXPORT liq_attr* liq_attr_create(void);
|
|
LIQ_EXPORT liq_attr* liq_attr_create_with_allocator(void* (*malloc)(size_t), void (*free)(void*));
|
|
LIQ_EXPORT liq_attr* liq_attr_copy(liq_attr *orig);
|
|
LIQ_EXPORT void liq_attr_destroy(liq_attr *attr);
|
|
|
|
LIQ_EXPORT liq_error liq_set_max_colors(liq_attr* attr, int colors);
|
|
LIQ_EXPORT int liq_get_max_colors(const liq_attr* attr);
|
|
LIQ_EXPORT liq_error liq_set_speed(liq_attr* attr, int speed);
|
|
LIQ_EXPORT int liq_get_speed(const liq_attr* attr);
|
|
LIQ_EXPORT liq_error liq_set_min_opacity(liq_attr* attr, int min);
|
|
LIQ_EXPORT int liq_get_min_opacity(const liq_attr* attr);
|
|
LIQ_EXPORT liq_error liq_set_min_posterization(liq_attr* attr, int bits);
|
|
LIQ_EXPORT int liq_get_min_posterization(const liq_attr* attr);
|
|
LIQ_EXPORT liq_error liq_set_quality(liq_attr* attr, int minimum, int maximum);
|
|
LIQ_EXPORT int liq_get_min_quality(const liq_attr* attr);
|
|
LIQ_EXPORT int liq_get_max_quality(const liq_attr* attr);
|
|
LIQ_EXPORT void liq_set_last_index_transparent(liq_attr* attr, int is_last);
|
|
|
|
typedef void liq_log_callback_function(const liq_attr*, const char *message, void* user_info);
|
|
typedef void liq_log_flush_callback_function(const liq_attr*, void* user_info);
|
|
LIQ_EXPORT void liq_set_log_callback(liq_attr*, liq_log_callback_function*, void* user_info);
|
|
LIQ_EXPORT void liq_set_log_flush_callback(liq_attr*, liq_log_flush_callback_function*, void* user_info);
|
|
|
|
LIQ_EXPORT liq_image *liq_image_create_rgba_rows(liq_attr *attr, void* rows[], int width, int height, double gamma);
|
|
LIQ_EXPORT liq_image *liq_image_create_rgba(liq_attr *attr, void* bitmap, int width, int height, double gamma);
|
|
|
|
typedef void liq_image_get_rgba_row_callback(liq_color row_out[], int row, int width, void* user_info);
|
|
LIQ_EXPORT liq_image *liq_image_create_custom(liq_attr *attr, liq_image_get_rgba_row_callback *row_callback, void* user_info, int width, int height, double gamma);
|
|
|
|
LIQ_EXPORT liq_error liq_image_set_memory_ownership(liq_image *image, int ownership_flags);
|
|
LIQ_EXPORT liq_error liq_image_add_fixed_color(liq_image *img, liq_color color);
|
|
LIQ_EXPORT int liq_image_get_width(const liq_image *img);
|
|
LIQ_EXPORT int liq_image_get_height(const liq_image *img);
|
|
LIQ_EXPORT void liq_image_destroy(liq_image *img);
|
|
|
|
LIQ_EXPORT liq_result *liq_quantize_image(liq_attr *options, liq_image *input_image);
|
|
|
|
LIQ_EXPORT liq_error liq_set_dithering_level(liq_result *res, float dither_level);
|
|
LIQ_EXPORT liq_error liq_set_output_gamma(liq_result* res, double gamma);
|
|
LIQ_EXPORT double liq_get_output_gamma(const liq_result *result);
|
|
|
|
LIQ_EXPORT const liq_palette *liq_get_palette(liq_result *result);
|
|
|
|
LIQ_EXPORT liq_error liq_write_remapped_image(liq_result *result, liq_image *input_image, void *buffer, size_t buffer_size);
|
|
LIQ_EXPORT liq_error liq_write_remapped_image_rows(liq_result *result, liq_image *input_image, unsigned char **row_pointers);
|
|
|
|
LIQ_EXPORT double liq_get_quantization_error(liq_result *result);
|
|
LIQ_EXPORT int liq_get_quantization_quality(liq_result *result);
|
|
|
|
LIQ_EXPORT void liq_result_destroy(liq_result *);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif
|