Subversion Repositories Kolibri OS

/* Written by turbocat2001 (Logaev Maxim) */

#ifndef KOLIBRI_LIBIMG_H

#define KOLIBRI_LIBIMG_H

#include 

#include 

extern int kolibri_libimg_init(void);

#define _stdcall __attribute__((__stdcall__))

//list of format id's

#define LIBIMG_FORMAT_BMP       1

#define LIBIMG_FORMAT_ICO       2

#define LIBIMG_FORMAT_CUR       3

#define LIBIMG_FORMAT_GIF       4

#define LIBIMG_FORMAT_PNG       5

#define LIBIMG_FORMAT_JPEG      6

#define LIBIMG_FORMAT_TGA       7

#define LIBIMG_FORMAT_PCX       8

#define LIBIMG_FORMAT_XCF       9

#define LIBIMG_FORMAT_TIFF      10

#define LIBIMG_FORMAT_PNM       11

#define LIBIMG_FORMAT_WBMP      12

#define LIBIMG_FORMAT_XBM       13

#define LIBIMG_FORMAT_Z80       14

#pragma pack(push, 1)

typedef struct{

  uint32_t Checksum; // ((Width ROL 16) OR Height) XOR Data[0]        ; ignored so far

  uint32_t Width;

  uint32_t Height;

  uint32_t Next;

  uint32_t Previous;

  uint32_t Type;     // one of Image.bppN

  uint32_t* Data;

  uint32_t Palette;  // used iff Type eq Image.bpp1, Image.bpp2, Image.bpp4 or Image.bpp8i

  uint32_t Extended;

  uint32_t Flags;    // bitfield

  uint32_t Delay;    // used iff Image.IsAnimated is set in Flags

} Image;

#pragma pack(pop)

#define IMAGE_BPP8i  1  // indexed

#define IMAGE_BPP24  2

#define IMAGE_BPP32  3

#define IMAGE_BPP15  4

#define IMAGE_BPP16  5

#define IMAGE_BPP1   6

#define IMAGE_BPP8g  7  // grayscale

#define IMAGE_BPP2i  8

#define IMAGE_BPP4i  9

#define IMAGE_BPP8a 10

// scale type

#define LIBIMG_SCALE_NONE       0

#define LIBIMG_SCALE_INTEGER    1

#define LIBIMG_SCALE_TILE       2

#define LIBIMG_SCALE_STRETCH    3

#define LIBIMG_SCALE_FIT_BOTH   LIBIMG_SCALE_STRETCH

#define LIBIMG_SCALE_FIT_MIN    4

#define LIBIMG_SCALE_FIT_RECT   LIBIMG_SCALE_FIT_MIN

#define LIBIMG_SCALE_FIT_WIDTH  5

#define LIBIMG_SCALE_FIT_HEIGHT 6

#define LIBIMG_SCALE_FIT_MAX    7

// interpolation algorithm

#define LIBIMG_INTER_NONE       0     // use it with LIBIMG_SCALE_INTEGER, LIBIMG_SCALE_TILE, etc

#define LIBIMG_INTER_BILINEAR   1

#define LIBIMG_INTER_BICUBIC    2

#define LIBIMG_INTER_LANCZOS    3

#define LIBIMG_INTER_DEFAULT   LIBIMG_INTER_BILINEAR

//error codes

#define LIBIMG_ERROR_OUT_OF_MEMORY      1

#define LIBIMG_ERROR_FORMAT             2

#define LIBIMG_ERROR_CONDITIONS         3

#define LIBIMG_ERROR_BIT_DEPTH          4

#define LIBIMG_ERROR_ENCODER            5

#define LIBIMG_ERROR_SRC_TYPE           6

#define LIBIMG_ERROR_SCALE              7

#define LIBIMG_ERROR_INTER              8

#define LIBIMG_ERROR_NOT_INPLEMENTED    9

#define LIBIMG_ERROR_INVALID_INPUT      10

//encode flags (byte 0x02 of _common option)

#define LIBIMG_ENCODE_STRICT_SPECIFIC   0x01

#define LIBIMG_ENCODE_STRICT_BIT_DEPTH  0x02

#define LIBIMG_ENCODE_DELETE_ALPHA      0x08

#define LIBIMG_ENCODE_FLUSH_ALPHA       0x10

#define FLIP_VERTICAL   0x01

#define FLIP_HORIZONTAL 0x02

#define ROTATE_90_CW    0x01

#define ROTATE_180      0x02

#define ROTATE_270_CW   0x03

#define ROTATE_90_CCW   ROTATE_270_CW

#define ROTATE_270_CCW  ROTATE_90_CW

extern Image*   (*img_decode)(void* file_data, uint32_t size, uint32_t b_color) _stdcall;

extern Image*   (*img_encode)(Image* img, uint32_t length, uint32_t option) _stdcall;

extern Image*   (*img_create)(uint32_t width, uint32_t height, uint32_t type) _stdcall;

extern void     (*img_to_rgb2)(Image* img, void *rgb_data) _stdcall;

extern Image*   (*img_to_rgb)(Image* img) _stdcall;

extern bool     (*img_flip)(Image* img, uint32_t flip) _stdcall;

extern bool     (*img_flip_layer)(Image *img, uint32_t flip) _stdcall;

extern bool     (*img_rotate)(Image *img, uint32_t rotate) _stdcall;

extern bool     (*img_rotate_layer)(Image* data, uint32_t rotate) _stdcall;

extern void     (*img_draw)(Image *img, uint32_t x, uint32_t y, uint32_t w, uint32_t h, uint32_t xoff,  uint32_t yoff) _stdcall;

extern int32_t  (*img_count)(Image *img) _stdcall;

extern bool     (*img_destroy)(Image *img) _stdcall;

extern bool     (*img_destroy_layer)(Image* img) _stdcall;

extern Image*   (*img_blend)(Image* dst, Image* src, uint32_t out_x, uint32_t out_y, uint32_t in_x, uint32_t in_y, uint32_t width, uint32_t height) _stdcall;

extern Image*   (*img_convert)(Image *src, Image *dst, uint32_t dst_type, uint32_t, uint32_t) _stdcall;

extern Image*   (*img_resize_data)(Image *src, uint32_t width, uint32_t height) _stdcall;

extern Image*   (*img_scale)(Image* src, uint32_t crop_x, uint32_t crop_y, uint32_t crop_width, uint32_t crop_height, Image* dst, uint32_t scale_type, uint32_t inter, uint32_t new_width, uint32_t new_height) _stdcall;

void img_fill_color(Image* img, uint32_t width, uint32_t height, uint32_t color) {

    uint32_t i;

    for (i = 0; i < width*height; i++) {

        img->Data[i] = color;

    }

}

#endif /* KOLIBRI_LIBIMG_H */