2006-12-29 15:50:24 +01:00
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;-----------------------------------------------------------
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;-------analizing picture to palette------------------------
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;-----------------------------------------------------------
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analizing_picture_to_palette:
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2010-10-04 22:40:19 +02:00
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mov eax,[Picture_SizeX]
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mov ebx,[Picture_SizeY]
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imul eax,ebx
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mov ecx,eax
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mov edx,[PointerToPicture]
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mov esi,1 ;counter colors in palette
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;put firs color of picture how one color in palette
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mov ebp,[PointerToPalette]
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mov eax,[edx]
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and eax,0xffffff
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mov [ebp],eax
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analizing_to_palette:
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mov eax,[edx]
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and eax,0xffffff
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mov edi,esi
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mov ebp,[PointerToPalette]
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next_color_in_palette:
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mov ebx,[ebp]
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and ebx,0xffffff
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cmp ebx,eax ;this is color have in palette
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je exit_loop_palette
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add ebp,4
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dec edi
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jnz next_color_in_palette
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inc esi
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cmp esi,256 ;256 colors
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ja more_than_256_colors
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mov ebp,[PointerToPalette]
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mov ebx,esi
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dec ebx
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shl ebx,2
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add ebp,ebx
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mov [ebp],ax
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shr eax,16
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mov [ebp+2],al
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exit_loop_palette:
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add edx,3
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dec ecx
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jnz analizing_to_palette
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more_than_256_colors:
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mov eax,esi
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ret
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