Subversion Repositories Kolibri OS

//Asper

#ifndef INCLUDE_LIBIMG_H

#define INCLUDE_LIBIMG_H

#ifndef INCLUDE_KOLIBRI_H

#include "../lib/kolibri.h"

#endif

#ifndef INCLUDE_MEM_H

#include "../lib/mem.h"

#endif

#ifndef INCLUDE_DLL_H

#include "../lib/dll.h"

#endif

//library

dword libimg = #alibimg;

char alibimg[] = "/sys/lib/libimg.obj";

dword libimg_init   = #alibimg_init;

dword img_decode    = #aimg_decode;

dword img_destroy   = #aimg_destroy;

dword img_draw      = #aimg_draw;

dword img_create    = #aimg_create;

dword img_encode    = #aimg_encode;

dword img_convert   = #aimg_convert;

dword img_from_file = #aimg_from_file;

dword img_blend     = #aimg_blend;

dword img_flip      = #aimg_flip;

dword img_rotate    = #aimg_rotate;

dword img_scale     = #aimg_scale;

//dword img_is_img    = #aimg_is_img;

//dword img_to_rgb    = #aimg_to_rgb;

//dword img_to_rgb2   = #aimg_to_rgb2;

$DD 2 dup 0

//import

char alibimg_init[]   = "lib_init";

char aimg_decode[]    = "img_decode";

char aimg_destroy[]   = "img_destroy";

char aimg_draw[]      = "img_draw";

char aimg_create[]    = "img_create";

char aimg_encode[]    = "img_encode";

char aimg_convert[]   = "img_convert";

char aimg_from_file[] = "img_from_file";

char aimg_blend[]     = "img_blend";

char aimg_flip[]      = "img_flip";

char aimg_rotate[]    = "img_rotate";

char aimg_scale[]     = "img_scale";

//char aimg_is_img[]    = "img_is_img";

//char aimg_to_rgb[]    = "img_to_rgb";

//char aimg_to_rgb2[]   = "img_to_rgb2";

#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

// values for Image.Type

// must be consecutive to allow fast switch on Image.Type in support functions

#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  // grayscale with alpha channel; application layer only!!!

                        // kernel doesn't handle this image type,

                        // libimg can only create and destroy such images

//flip and rotate

#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

//scale type                    //corresponding img.scale params

#define LIBIMG_SCALE_NONE       0     //do not scale

#define LIBIMG_SCALE_INTEGER    1     //scale factor, reserved 0

#define LIBIMG_SCALE_TILE       2     //new width, new height

#define LIBIMG_SCALE_STRETCH    3     //new width, new height

#define LIBIMG_SCALE_FIT_BOTH   LIBIMG_SCALE_STRETCH

#define LIBIMG_SCALE_FIT_MIN    4     //new width, new height

#define LIBIMG_SCALE_FIT_RECT   LIBIMG_SCALE_FIT_MIN

#define LIBIMG_SCALE_FIT_WIDTH  5     //new width, new height

#define LIBIMG_SCALE_FIT_HEIGHT 6     //new width, new height

#define LIBIMG_SCALE_FIT_MAX    7     //new width, new height

//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_DEFAULT    LIBIMG_INTER_BILINEAR

/*

// error codes

LIBIMG_ERROR_OUT_OF_MEMORY      = 1

LIBIMG_ERROR_FORMAT             = 2

LIBIMG_ERROR_CONDITIONS         = 3

LIBIMG_ERROR_BIT_DEPTH          = 4

LIBIMG_ERROR_ENCODER            = 5

LIBIMG_ERROR_SRC_TYPE           = 6

LIBIMG_ERROR_SCALE              = 7

LIBIMG_ERROR_INTER              = 8

LIBIMG_ERROR_NOT_INPLEMENTED    = 9

LIBIMG_ERROR_INVALID_INPUT      = 10

*/

struct libimg_image

{

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

    dword w;

    dword h;

    dword next;

    dword previous;

    dword type;     // one of Image.bppN

    dword imgsrc;

    dword palette;  // used iff Type eq Image.bpp1, Image.bpp2, Image.bpp4 or Image.bpp8i

    dword extended;

    dword flags;    // bitfield

    dword delay;    // used iff Image.IsAnimated is set in Flags

    dword image;

    void load();

    void convert_into();

    void replace_color();

    void replace_2colors();

    void set_vars();

    void draw();

};

:void libimg_image::set_vars()

{

    $push edi

    EDI = image;

    //checksum = ESDWORD[EDI];

    w = ESDWORD[EDI+4];

    h = ESDWORD[EDI+8];

    //next = ESDWORD[EDI+12];

    //previous = ESDWORD[EDI+16];

    type = ESDWORD[EDI+20];

    imgsrc = ESDWORD[EDI+24];

    //palette = ESDWORD[EDI+28];

    //extended = ESDWORD[EDI+32];

    //flags = ESDWORD[EDI+36];

    //delay = ESDWORD[EDI+40];

    $pop edi

}

:void libimg_image::load(dword file_path)

{

    if (image) img_destroy stdcall(image);

    img_from_file stdcall(file_path);

    if (!EAX) {

        notify("'Error: Image not loaded'E");

    } else {

        image = EAX;

        set_vars();

    }

}

:void libimg_image::replace_color(dword old_color, new_color)

{

    EDX =  w * h * 4 + imgsrc;

    ESI = old_color;

    ECX = new_color;

    FOR (EDI = imgsrc; EDI < EDX; EDI += 4) IF (DSDWORD[EDI]==ESI) DSDWORD[EDI] = ECX;

}

:void libimg_image::replace_2colors(dword old_color1, new_color1, old_color2, new_color2)

{

    EDX =  w * h * 4 + imgsrc;

    ESI = old_color1;

    ECX = new_color1;

    EBX = old_color2;

    EAX = new_color2;

    FOR (EDI = imgsrc; EDI < EDX; EDI += 4) {

        IF (DSDWORD[EDI]==ESI) DSDWORD[EDI] = ECX;

        ELSE IF (DSDWORD[EDI]==EBX) DSDWORD[EDI] = EAX;

    }

}

:void libimg_image::draw(dword _x, _y, _w, _h, _xoff, _yoff)

{

    if (image) img_draw stdcall(image, _x, _y, _w, _h, _xoff, _yoff);

}

:void libimg_image::convert_into(dword _to)

{

    img_convert stdcall(image, 0, _to, 0, 0);

    if (!EAX) {

        notify("'LibImg convertation error!'E");

    } else {

        $push eax

        img_destroy stdcall(image);

        $pop eax

        image = EAX;

        set_vars();

    }

}

:dword save_image(dword _image_pointer, _w, _h, _path)

{

    dword encoded_data=0;

    dword encoded_size=0;

    dword image_ptr = 0;

    img_create stdcall(_w, _h, IMAGE_BPP24);

    image_ptr = EAX;

    if (!image_ptr) {

        return "Error creating image!";

    }

    else {

        EDI = image_ptr;

        memmov(EDI.libimg_image.imgsrc, _image_pointer, _w * _h * 3);

        img_encode stdcall(image_ptr, LIBIMG_FORMAT_PNG, 0);

        encoded_data = EAX;

        encoded_size = ECX;

        img_destroy stdcall(image_ptr);

        if(!encoded_data) {

            return "Error encoding image!";

        }

        else {

            if (!CreateFile(encoded_size, encoded_data, _path)) {

                return 0;

            }

            else {

                return "'Error saving image file!\nNot enough space? Path wrong?\nFile system is not writable?..' -E";

            }

        }

    }

}

#endif