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libimg: img.scale prototype and simple example

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git-svn-id: svn://kolibrios.org@3036 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Ivan B
2012-11-13 19:16:23 +00:00
parent 7659d0d8df
commit a34e834d07
5 changed files with 869 additions and 12 deletions
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43
programs/develop/libraries/libs-dev/libimg/libimg.inc
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@@ -1,5 +1,5 @@
;;================================================================================================;;
;;//// libimg.inc //// (c) mike.dld, 2007-2008, (c) diamond, 2009 ////////////////////////////////;;
;;//// libimg.inc //// (c) mike.dld, 2007-2008, (c) diamond, 2009, (c) dunkaist, 2011-2012 ///////;;
;;================================================================================================;;
;; ;;
;; This file is part of Common development libraries (Libs-Dev). ;;
@@ -32,18 +32,40 @@ LIBIMG_FORMAT_ID_PNM = 11
LIBIMG_FORMAT_ID_WBMP = 12
LIBIMG_FORMAT_ID_Z80 = 13
; scale type
LIBIMG_SCALE_TYPE_STRETCH = 0
LIBIMG_SCALE_TYPE_FIT_RECT = 1
LIBIMG_SCALE_TYPE_FIT_WIDTH = 2
LIBIMG_SCALE_TYPE_FIT_HEIGHT = 3
LIBIMG_SCALE_TYPE_FIT_MAX = 4
;LIBIMG_SCALE_TYPE_TILE = 5
; scale algorithm
;LIBIMG_SCALE_ALG_DEFAULT = 0
LIBIMG_SCALE_ALG_INTEGER = 1
LIBIMG_SCALE_ALG_BILINEAR = 2
;LIBIMG_SCALE_ALG_BICUBIC = 3
;LIBIMG_SCALE_ALG_LANCZOS = 4
; 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_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_TYPE = 7
LIBIMG_ERROR_SCALE_ALG = 8
LIBIMG_ERROR_NOT_INPLEMENTED = 9
; 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
LIBIMG_ENCODE_STRICT_SPECIFIC = 0x01
LIBIMG_ENCODE_STRICT_BIT_DEPTH = 0x02
LIBIMG_ENCODE_DELETE_ALPHA = 0x08
LIBIMG_ENCODE_FLUSH_ALPHA = 0x10
; convert flags
LIBIMG_CONVERT_IN_PLACE = 0x01 ; do not create new image, store result in _src
struct FormatsTableEntry
Format_id dd ?
@@ -78,6 +100,7 @@ Image.bpp1 = 6
Image.bpp8g = 7 ; grayscale
Image.bpp8a = 8 ; grayscale with alpha channel; application layer only!!! kernel doesn't handle this image type, libimg can only create and destroy such images
;Image.bpp4 = 9
;Image.bpp2 = 10
; bits in Image.Flags
Image.IsAnimated = 1