forked from KolibriOS/kolibrios
libimg: add img.from_file, refactor img.convert.
Add new function, img.from_file: gets file name and returns decoded Image. Make img.convert code less spaghetti: use jump table, not a chain of jmp's. git-svn-id: svn://kolibrios.org@7105 a494cfbc-eb01-0410-851d-a64ba20cac60
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@ -26,7 +26,10 @@ include '../../../../struct.inc'
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include '../../../../proc32.inc'
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include '../../../../macros.inc'
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include '../../../../config.inc'
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;include '../../../../debug.inc'
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include '../../../../debug-fdo.inc'
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__DEBUG__ = 0
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__DEBUG_LEVEL__ = 1
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include '../../../../develop/libraries/libs-dev/libio/libio.inc'
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purge section,mov,add,sub
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include 'libimg.inc'
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@ -124,14 +127,50 @@ endp
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;;================================================================================================;;
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proc img.from_file _filename ;////////////////////////////////////////////////////////////////////;;
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;;------------------------------------------------------------------------------------------------;;
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;? --- TBD --- ;;
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;? load file from disk and decode it ;;
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;;------------------------------------------------------------------------------------------------;;
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;> --- TBD --- ;;
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;> [_filename] = file name as passed to libio ;;
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;;------------------------------------------------------------------------------------------------;;
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;< eax = 0 / pointer to image ;;
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;;================================================================================================;;
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xor eax, eax
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ret
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locals
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fd dd ?
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img_data_len dd ?
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img_data dd ? ; raw bytes
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img dd ? ; Image pointer
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endl
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DEBUGF 2, 'img.from_file: %s\n', [_filename]
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push ebx
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mov [img], 0
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invoke file.open, [_filename], O_READ
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mov [fd], eax
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test eax, eax
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jz .exit
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invoke file.size, [_filename]
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test eax, eax
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jnz .exit_close
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mov [img_data_len], ebx
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invoke mem.alloc, ebx
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test eax, eax
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jz .exit_close
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mov [img_data], eax
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invoke file.read, [fd], eax, [img_data_len]
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cmp eax, -1
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jz .exit_free_close
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cmp eax, [img_data_len]
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jnz .exit_free_close
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stdcall img.decode, [img_data], [img_data_len], 0
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test eax, eax
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jz .exit_free_close
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mov [img], eax
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.exit_free_close:
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invoke mem.free, [img_data]
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.exit_close:
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invoke file.close, [fd]
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mov eax, [img]
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.exit:
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pop ebx
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ret
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endp
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;;================================================================================================;;
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@ -2439,18 +2478,6 @@ img.formats_table:
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.z80 dd LIBIMG_FORMAT_Z80, img.is.z80, img.decode.z80, img.encode.z80, 0 ;this must be the last entry as there are no signatures in z80 screens at all
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dd 0
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align 4
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img.types_table: ; entries order must correspond to type defnitions in libimg.inc
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dd 0 ; there is no Image.bpp* = 0
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.bpp8i dd (1 SHL Image.bpp24)
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.bpp24 dd (1 SHL Image.bpp24) OR (1 SHL Image.bpp8g)
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.bpp32 dd (1 SHL Image.bpp24)
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.bpp15 dd (1 SHL Image.bpp24)
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.bpp16 dd (1 SHL Image.bpp24)
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.bpp1 dd (1 SHL Image.bpp24)
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.bpp8g dd (1 SHL Image.bpp24) OR (1 SHL Image.bpp1 ) OR (1 SHL Image.bpp8g)
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.bpp8a dd (1 SHL Image.bpp24)
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;;================================================================================================;;
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;;////////////////////////////////////////////////////////////////////////////////////////////////;;
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;;================================================================================================;;
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@ -2717,6 +2744,8 @@ img._.get_scanline_len: ;///////////////////////////////////////////////////////
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;;////////////////////////////////////////////////////////////////////////////////////////////////;;
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;;================================================================================================;;
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include_debug_strings
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align 4
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type2bpp dd 8, 24, 32, 15, 16, 1, 9, 2, 4
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img._.do_rgb.handlers:
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@ -2786,14 +2815,23 @@ export \
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align 16
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@IMPORT:
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library archiver, 'archiver.obj'
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library \
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archiver, 'archiver.obj', \
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libio , 'libio.obj'
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import archiver, \
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deflate_unpack2, 'deflate_unpack2',\
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deflateInit2, 'deflateInit2',\
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deflateReset, 'deflateReset',\
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deflate, 'deflate',\
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deflateEnd, 'deflateEnd',\
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calc_crc32, 'calc_crc32'
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deflate_unpack2, 'deflate_unpack2',\
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deflateInit2, 'deflateInit2',\
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deflateReset, 'deflateReset',\
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deflate, 'deflate',\
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deflateEnd, 'deflateEnd',\
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calc_crc32, 'calc_crc32'
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import libio , \
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file.size , 'file_size' , \
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file.open , 'file_open' , \
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file.read , 'file_read' , \
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file.close, 'file_close'
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align 4
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; mutex for unpacker loading
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@ -30,7 +30,7 @@ LIBIMG_FORMAT_XCF = 9
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LIBIMG_FORMAT_TIFF = 10
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LIBIMG_FORMAT_PNM = 11
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LIBIMG_FORMAT_WBMP = 12
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LIBIMG_FORMAT_XBM = 13
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LIBIMG_FORMAT_XBM = 13
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LIBIMG_FORMAT_Z80 = 14
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; scale type ; corresponding img.scale params
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@ -65,10 +65,10 @@ LIBIMG_ERROR_NOT_INPLEMENTED = 9
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LIBIMG_ERROR_INVALID_INPUT = 10
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; encode flags (byte 0x02 of _common option)
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;LIBIMG_ENCODE_STRICT_SPECIFIC = 0x01
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LIBIMG_ENCODE_STRICT_BIT_DEPTH = 0x02
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;LIBIMG_ENCODE_DELETE_ALPHA = 0x08
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;LIBIMG_ENCODE_FLUSH_ALPHA = 0x10
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;LIBIMG_ENCODE_STRICT_SPECIFIC = 0x01
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LIBIMG_ENCODE_STRICT_BIT_DEPTH = 0x02
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;LIBIMG_ENCODE_DELETE_ALPHA = 0x08
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;LIBIMG_ENCODE_FLUSH_ALPHA = 0x10
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; convert flags
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; none so far
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