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kolibrios/programs/develop/libraries/libs-dev/libimg/libimg.inc
Ivan Baravy ccaf3a054b libimg:
add new image types (Image.bpp2i, Image.bpp4i); update to_rgb, flip, rotate functions
decode .bpp2i and .bpp4i tiff images
disable memory limit for decoded images


git-svn-id: svn://kolibrios.org@3503 a494cfbc-eb01-0410-851d-a64ba20cac60
2013-05-11 21:31:21 +00:00

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;;================================================================================================;;
;;//// libimg.inc //// (c) mike.dld, 2007-2008, (c) diamond, 2009, (c) dunkaist, 2011-2013 ///////;;
;;================================================================================================;;
;; ;;
;; This file is part of Common development libraries (Libs-Dev). ;;
;; ;;
;; Libs-Dev is free software: you can redistribute it and/or modify it under the terms of the GNU ;;
;; Lesser General Public License as published by the Free Software Foundation, either version 2.1 ;;
;; of the License, or (at your option) any later version. ;;
;; ;;
;; Libs-Dev is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without ;;
;; even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ;;
;; Lesser General Public License for more details. ;;
;; ;;
;; You should have received a copy of the GNU Lesser General Public License along with Libs-Dev. ;;
;; If not, see <http://www.gnu.org/licenses/>. ;;
;; ;;
;;================================================================================================;;
; list of format id's
LIBIMG_FORMAT_BMP = 1
LIBIMG_FORMAT_ICO = 2
LIBIMG_FORMAT_CUR = 3
LIBIMG_FORMAT_GIF = 4
LIBIMG_FORMAT_PNG = 5
LIBIMG_FORMAT_JPEG = 6
LIBIMG_FORMAT_TGA = 7
LIBIMG_FORMAT_PCX = 8
LIBIMG_FORMAT_XCF = 9
LIBIMG_FORMAT_TIFF = 10
LIBIMG_FORMAT_PNM = 11
LIBIMG_FORMAT_WBMP = 12
LIBIMG_FORMAT_XBM = 13
LIBIMG_FORMAT_Z80 = 14
; scale type ; corresponding img.scale params
LIBIMG_SCALE_INTEGER = 1 ; scale factor ; reserved 0
LIBIMG_SCALE_TILE = 2 ; new width ; new height
LIBIMG_SCALE_STRETCH = 3 ; new width ; new height
LIBIMG_SCALE_FIT_RECT = 4 ; new width ; new height
LIBIMG_SCALE_FIT_WIDTH = 5 ; new width ; new height
LIBIMG_SCALE_FIT_HEIGHT = 6 ; new width ; new height
LIBIMG_SCALE_FIT_MAX = 7 ; new width ; new height
; interpolation algorithm
LIBIMG_INTER_NONE = 0 ; use it with LIBIMG_SCALE_INTEGER, LIBIMG_SCALE_TILE, etc
LIBIMG_INTER_BILINEAR = 1
;LIBIMG_INTER_BICUBIC = 2
;LIBIMG_INTER_LANCZOS = 3
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
; encode flags (byte 0x02 of _common option)
LIBIMG_ENCODE_STRICT_SPECIFIC = 0x01
LIBIMG_ENCODE_STRICT_BIT_DEPTH = 0x02
LIBIMG_ENCODE_DELETE_ALPHA = 0x08
LIBIMG_ENCODE_FLUSH_ALPHA = 0x10
; convert flags
; TBD
struct FormatsTableEntry
Format_id dd ?
Is dd ?
Decode dd ?
Encode dd ?
Capabilities dd ?
ends
struct Image
Checksum dd ? ; ((Width ROL 16) OR Height) XOR Data[0] ; ignored so far
Width dd ?
Height dd ?
Next dd ?
Previous dd ?
Type dd ? ; one of Image.bppN
Data dd ?
Palette dd ? ; used iff Type eq Image.bpp1, Image.bpp2, Image.bpp4 or Image.bpp8i
Extended dd ?
Flags dd ? ; bitfield
Delay dd ? ; used iff Image.IsAnimated is set in Flags
ends
; values for Image.Type
; must be consecutive to allow fast switch on Image.Type in support functions
Image.bpp8i = 1 ; indexed
Image.bpp24 = 2
Image.bpp32 = 3
Image.bpp15 = 4
Image.bpp16 = 5
Image.bpp1 = 6
Image.bpp8g = 7 ; grayscale
Image.bpp2i = 8
Image.bpp4i = 9
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
; bits in Image.Flags
Image.IsAnimated = 1
struct ImageDecodeOptions
UsedSize dd ? ; if >=8, the field BackgroundColor is valid, and so on
BackgroundColor dd ? ; used for transparent images as background
ends
FLIP_VERTICAL = 0x01
FLIP_HORIZONTAL = 0x02
FLIP_BOTH = FLIP_VERTICAL or FLIP_HORIZONTAL
ROTATE_90_CW = 0x01
ROTATE_180 = 0x02
ROTATE_270_CW = 0x03
ROTATE_90_CCW = ROTATE_270_CW
ROTATE_270_CCW = ROTATE_90_CW