mirror of
https://github.com/KolibriOS/kolibrios.git
synced 2024-12-24 23:56:49 +03:00
60 lines
1.2 KiB
PHP
60 lines
1.2 KiB
PHP
convert_bmp_to_img:
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movzx eax,word [ebp+28]
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mul dword [ebp+18]
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mov ebx,32
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div ebx
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test edx,edx
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je noaddword
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inc eax
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noaddword:
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mov [dwps],eax ;dwps-doublewords per string
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shl eax,2
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mov [bps],eax ;bps-bytes per string
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cmp dword [ebp+34],0
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jne yespicsize ;if picture size is defined
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mul dword [ebp+22]
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mov dword [ebp+34],eax
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yespicsize:
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mov eax,ebp
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push eax
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sub eax, [ebp+2];file size
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mov [soi],eax ;soi-start of image area for drawing
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pop eax
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add eax, [ebp+10]
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mov [sop],eax ;sop-start of picture in file
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add eax, [ebp+34]
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mov [eop],eax ;eop-end of picture in file
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mov eax, [ebp+18]
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mov ebx,3
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mul ebx ;3x pixels in eax
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mov edi,[soi] ;initializing
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mov esi,[eop]
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sub esi,[bps]
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nextstring:
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push edi
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mov ecx,[dwps]
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cld
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rep movsd
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convert1:
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pop edi
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sub esi,[bps]
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sub esi,[bps]
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cmp esi,[sop]
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jb nomorestring
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add edi,eax
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jmp nextstring
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nomorestring:
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ret
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bps dd 0
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dwps dd 0
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soi dd 0
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sop dd 0
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eop dd 0
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