kolibrios/programs/media/voxel_editor/trunk/vox_draw.inc

;

BUF_STRUCT_SIZE equ 21
buf2d_data equ dword[edi] ;¤ ­­ë¥ ¡ãä¥à  ¨§®¡à ¦¥­¨ï
buf2d_w equ dword[edi+8] ;è¨à¨­  ¡ãä¥à 
buf2d_h equ dword[edi+12] ;¢ëá®â  ¡ãä¥à 
buf2d_l equ word[edi+4]
buf2d_t equ word[edi+6] ;®âáâ㯠ᢥàåã
buf2d_size_lt equ dword[edi+4] ;®âáâ㯠᫥¢  ¨ á¯à ¢  ¤«ï ¡ãä¥à 
buf2d_color equ dword[edi+16] ;梥â ä®­  ¡ãä¥à 
buf2d_bits equ byte[edi+20] ;ª®«¨ç¥á⢮ ¡¨â ¢ 1-© â®çª¥ ¨§®¡à ¦¥­¨ï

vox_offs_tree_table equ 4
vox_offs_data equ 12

;output:
; eax - (event shl 30) + position
align 4
proc get_mouse_ev_scale uses ebx ecx edx, h_br:dword, coord_x:dword, coord_y:dword, scale_obj:dword, scale_img:dword
	mov ecx,[scale_obj]
	stdcall [buf2d_vox_obj_get_img_h_3g], [h_br],ecx
	cmp eax,[coord_y]
	jle .test_x
	stdcall [buf2d_vox_obj_get_img_w_3g], [h_br],ecx
	cmp eax,[coord_x]
	jle .test_z

	.no_change:
	xor eax,eax
	jmp .end_f

	.test_x:
	mov ebx,[h_br]
	movzx ebx,byte[ebx+1]
	add eax,ebx
	cmp eax,[coord_y]
	jl .no_change
	stdcall [buf2d_vox_obj_get_img_w_3g], [h_br],ecx
	cmp eax,[coord_x]
	jl .no_change
	mov ebx,eax
	mov ecx,[scale_img]
	inc ecx
	shr ebx,cl
	xor edx,edx
	mov eax,[coord_x]
	div ebx
	dec ecx
	xor ebx,ebx
	inc ebx
	shl ebx,cl
	cmp eax,ebx
	jge @f
		or eax,1 shl 30
		jmp .end_f
	@@:
	sub eax,ebx
	or eax,2 shl 30
	jmp .end_f

	.test_z:
	mov ebx,[h_br]
	movzx ebx,byte[ebx]
	add eax,ebx
	cmp eax,[coord_x]
	jl .no_change
	mov ebx,[h_br]
	movzx ebx,byte[ebx+1]
	mov ecx,[scale_obj]
	shl ebx,cl
	mov ecx,[scale_img]
	shr ebx,cl
	mov eax,[coord_y]
	xor edx,edx
	div ebx
	;¨­¢¥àá¨ï ª®®à¤¨­ âë y
	xor edx,edx
	inc edx
	shl edx,cl
	dec edx
	sub edx,eax
	mov eax,edx
	or eax,3 shl 30

	.end_f:
	ret
endp

;
;x0y0 - x1y0
;x1y0 - x1y1
;x0y1 - x0y0
;x1y1 - x0y1
align 4
proc vox_obj_rot_z uses eax ebx ecx, v_obj:dword
	mov ebx,[v_obj]
	add ebx,vox_offs_tree_table
	mov ecx,2
	cld
	@@:
		mov eax,dword[ebx]
		mov byte[ebx+1],al
		mov byte[ebx+3],ah
		shr eax,16
		mov byte[ebx],al
		mov byte[ebx+2],ah
		add ebx,4
		loop @b
	ret
endp

;
;y0z0 - y0z1
;y0z1 - y1z1
;y1z1 - y1z0
;y1z0 - y0z0
align 4
proc vox_obj_rot_x uses eax ebx ecx, v_obj:dword
	mov ebx,[v_obj]
	add ebx,vox_offs_tree_table
	mov eax,dword[ebx]
	mov ecx,dword[ebx+4]

	mov byte[ebx+4],al
	mov byte[ebx+5],ah
	shr eax,16
	mov byte[ebx+0],al
	mov byte[ebx+1],ah

	mov byte[ebx+6],cl
	mov byte[ebx+7],ch
	shr ecx,16
	mov byte[ebx+2],cl
	mov byte[ebx+3],ch

	ret
endp

;
;output:
; eax - ç¨á«® 㧫®¢ ¢ ®¡ê¥ªâ¥ v_obj
align 4
proc vox_obj_get_nodes uses edi, v_obj:dword
	mov edi,[v_obj]
	add edi,vox_offs_data
	xor eax,eax
	stdcall vox_obj_rec0
	ret
endp

;???
;input:
; edi - 㪠§ â¥«ì ­  ¤ ­­ë¥ ¢®ªá¥«ì­®£® ®¡ê¥ªâ 
;output:
; eax - eax + ç¨á«® 㧫®¢ ¢ ¤ ­­ëå ¢®ªá. ®¡ê¥ªâ 
; edi - 㪠§ â¥«ì ­  ᬥ饭­ë¥ ¤ ­­ë¥ ¢®ªá. ®¡ê¥ªâ 
align 4
proc vox_obj_rec0
	inc eax
	cmp byte[edi+3],0 ;ᬮâਬ ¥áâì «¨ ¯®¤¤¥à¥¢ìï
	je .sub_trees

		;४ãàᨢ­ë© ¯¥à¥¡®à ¯®¤¤¥à¥¢ì¥¢
		push ebx ecx
		mov bh,byte[edi+3]
		add edi,4
		mov bl,8
		.cycle:
			bt bx,8 ;â¥áâ¨à㥬 ⮫쪮 bh
			jnc .c_next
				stdcall vox_obj_rec0
			.c_next:
			shr bh,1
			dec bl
			jnz .cycle
		pop ecx ebx

		jmp .end_f
	.sub_trees:
		add edi,4
	.end_f:
	ret
endp

;
;output:
; eax - à §¬¥à ¢ ¡ ©â å § ­¨¬ ¥¬ë© ®¡ê¥ªâ®¬ v_obj
align 4
proc buf2d_vox_obj_get_size, v_obj:dword
	stdcall vox_obj_get_nodes,[v_obj]
	shl eax,2
	add eax,vox_offs_data
	ret
endp

; ᮧ¤ ­¨¥ ¢®ªá¥«ï ¢ 3 íâ ¯ :
; 1) ¨é¥¬ ¬¥áâ® ¢ áâàãªâãॠ¤¥à¥¢ , ªã¤  ­ ¤® ¢áâ ¢¨âì (¥á«¨ ¢¥â¢ì áãé¥áâ¢ã¥â, 2-© íâ ¯ ¯à®¯ã᪠¥¬)
; 2) ¢áâ ¢«ï¥¬ ­®¢ãî ¢¥â¢ì á ¢®ªá¥«¥¬ (3-© íâ ¯ 㦥 ­¥ ¤¥« ¥¬)
; 3) ¬¥­ï¥¬ 梥⠢®ªá¥«ï
align 4
proc buf2d_vox_obj_create_node, v_obj:dword,coord_x:dword,coord_y:dword,\
coord_z:dword,k_scale:dword,color:dword
pushad
locals
	p_node dd 0 ;த¨â¥«ì᪨© 㧥«
endl

	mov edi,[v_obj]
	add edi,vox_offs_data
	mov esi,[k_scale]
	cmp esi,1
	jl .change
	; *** (1) ***
	.found:
	stdcall vox_obj_get_node_position, [v_obj],[coord_x],[coord_y],[coord_z],esi
	movzx bx,byte[edi+3]
	mov [p_node],edi
	add edi,4

	cmp eax,0
	je .end_1
	mov ecx,eax
	cld
	@@: ;横« ¤«ï ¯à®¯ã᪠ ¯à¥¤ë¤ãé¨å ¯®¤¤¥à¥¢ì¥¢ ¢ 㧫¥
		bt bx,0 ;¯à®¢¥à塞 ¥áâì «¨ ¤®ç¥à­¨¥ 㧫ë
		jnc .end_0
			xor eax,eax
			stdcall vox_obj_rec0 ;¢ eax ¢ëç¨á«ï¥âáï ç¨á«® ¤®ç¥à­¨å 㧫®¢, ¢ ¤ ­­®© ¢¥â¢¨
		.end_0:
		shr bx,1
		loop @b
	.end_1:
	bt bx,0
	jnc .creat ;¥á«¨ ¯®¤¤¥à¥¢  ­¥ áãé¥áâ¢ã¥â, ¯¥à¥å®¤¨¬ ª ᮧ¤ ­¨î
	dec esi
	cmp esi,0
	jg .found
	jmp .change

	; *** (2) ***
	.creat:
	mov edx,[color] ;¬¥­ï¥¬ 梥â
	and edx,0xffffff ;¤«ï ¯à®ä¨« ªâ¨ª¨
	mov ecx,esi
	stdcall vox_obj_add_nodes_mem, [v_obj],edi,ecx ;à áè¨à塞 ¬¥áâ® § ­¨¬ ¥¬®¥ ®¡ê¥ªâ®¬, ¤«ï ¤®¡ ¢«¥­¨ï ­®¢ëå 㧫®¢
	mov ebx,[p_node]
	cld
	@@:
		mov dword[edi],edx
		stdcall vox_obj_get_node_bit_mask, [v_obj],[coord_x],[coord_y],[coord_z],esi
		or byte[ebx+3],al

		mov ebx,edi
		add edi,4
		dec esi
		loop @b
	jmp .end_2

	; *** (3) ***
	.change:
	mov eax,[color] ;¬¥­ï¥¬ 梥â
	mov word[edi],ax
	shr eax,16
	mov byte[edi+2],al

	.end_2:
popad
	ret
endp

; 㤠«¥­¨¥ ¢®ªá¥«ï ¢ 2 íâ ¯ :
; 1) ¨é¥¬ ¬¥áâ® ¢ áâàãªâãॠ¤¥à¥¢ , £¤¥ ¥áâì 㤠«ï¥¬ë© 㧥« (¥á«¨ ¢¥â¢ì ­¥ áãé¥áâ¢ã¥â, ¢ë室¨¬ ¨§ ä㭪樨)
; 2) 㤠«ï¥¬ ¢¥â¢ì á ¢®ªá¥«¥¬
align 4
proc buf2d_vox_obj_delete_node, v_obj:dword,coord_x:dword,coord_y:dword,\
coord_z:dword,k_scale:dword
pushad
locals
	p_node dd 0 ;த¨â¥«ì᪨© 㧥«
endl
	mov edi,[v_obj]
	add edi,vox_offs_data
	mov esi,[k_scale]
	cmp esi,1
	jl .end_2
	; *** (1) ***
	.found:
	stdcall vox_obj_get_node_position, [v_obj],[coord_x],[coord_y],[coord_z],esi
	movzx bx,byte[edi+3]
	mov [p_node],edi
	add edi,4
	cmp eax,0
	je .end_1
	mov ecx,eax
	cld
	@@: ;横« ¤«ï ¯à®¯ã᪠ ¯à¥¤ë¤ãé¨å ¯®¤¤¥à¥¢ì¥¢ ¢ 㧫¥
		bt bx,0 ;¯à®¢¥à塞 ¥áâì «¨ ¤®ç¥à­¨¥ 㧫ë
		jnc .end_0
			xor eax,eax
			stdcall vox_obj_rec0 ;¢ eax ¢ëç¨á«ï¥âáï ç¨á«® ¤®ç¥à­¨å 㧫®¢, ¢ ¤ ­­®© ¢¥â¢¨
		.end_0:
		shr bx,1
		loop @b
	.end_1:
	bt bx,0
	jnc .end_2 ;¥á«¨ ¯®¤¤¥à¥¢  ­¥ áãé¥áâ¢ã¥â
	dec esi
	cmp esi,0
	jg .found

	; *** (2) ***
	;delete
	stdcall vox_obj_del_nodes_mem, [v_obj],edi ;á㦠¥¬ ¬¥áâ® § ­¨¬ ¥¬®¥ ®¡ê¥ªâ®¬, ¯à¨ 㤠«¥­¨¨ 㧫 
	mov ebx,[p_node]

	stdcall vox_obj_get_node_bit_mask, [v_obj],[coord_x],[coord_y],[coord_z],esi
	xor byte[ebx+3],al

	.end_2:
popad
	ret
endp

; ᤢ¨£ ¥â ã§«ë ¤«ï ¤®¡ ¢«¥­¨ï ­®¢ëå 㧫®¢
;input:
; p_insert - ¯®§¨æ¨ï ¤«ï ¢áâ ¢ª¨
; count - ª®««¨ç¥á⢮ ¢áâ ¢«ï¥¬ëå 㧫®¢
align 4
proc vox_obj_add_nodes_mem uses eax ecx edi esi, v_obj:dword,p_insert:dword,count:dword
	stdcall buf2d_vox_obj_get_size,[v_obj]
	mov esi,[v_obj]
	add esi,eax ;esi - 㪠§ â¥«ì ­  ª®­¥æ ä ©« 
	mov edi,[count]
	shl edi,2
	add edi,esi ;edi - 㪠§ â¥«ì ­  ¡ã¤ã騩 ª®­¥æ ä ©« 
	mov ecx,esi
	sub ecx,[p_insert]
	shr ecx,2 ;ecx - ç¨á«® 横«®¢ ¤«ï ª®¯¨à®¢ ­¨ï
	sub esi,4 ;esi - 㪠§ â¥«ì ­  ¯®á«¥¤­¨© 㧥«
	sub edi,4 ;edi - 㪠§ â¥«ì ­  ¡ã¤ã騩 ¯®á«¥¤­¨© 㧥«
	std
	rep movsd ;ᤢ¨£ ¥¬ ¯ ¬ïâì
	ret
endp

;input:
; p_insert - ¯®§¨æ¨ï ¤«ï ...
align 4
proc vox_obj_del_nodes_mem uses eax ecx edi esi, v_obj:dword,p_insert:dword
	stdcall buf2d_vox_obj_get_size,[v_obj]
	mov ecx,eax
	mov edi,[p_insert]
	add ecx,[v_obj]
	sub ecx,edi
	xor eax,eax
	stdcall vox_obj_rec0
	shr ecx,2
	sub ecx,eax ;ecx - ç¨á«® 横«®¢ ¤«ï ª®¯¨à®¢ ­¨ï
	shl eax,2
	add eax,[p_insert]
	mov esi,eax
	mov edi,[p_insert]
	cld
	rep movsd ;ᤢ¨£ ¥¬ ¯ ¬ïâì
	ret
endp

;???
; ®¯à¥¤¥«¥­¨¥ ¯®§¨æ¨¨ 㧫  ¢ ¤¥à¥¢¥ (®â 0 ¤® 7)
align 4
proc vox_obj_get_node_position uses ebx ecx edi, v_obj:dword,\
coord_x:dword,coord_y:dword,coord_z:dword,k_scale:dword
	mov ecx,[k_scale]
	dec ecx
	mov eax,[coord_x]
	mov ebx,[coord_y]
	mov edi,[coord_z]
	cmp ecx,1
	jl .end_0
		shr eax,cl
		shr ebx,cl
		shr edi,cl
	.end_0:
	and eax,1
	bt ebx,0
	jnc @f
		bts eax,1
	@@:
	bt edi,0
	jnc @f
		bts eax,2
	@@:

	mov edi,[v_obj]
	add edi,vox_offs_tree_table
	@@:
		cmp al,byte[edi]
		je @f
		inc edi
		jmp @b
	@@:
	sub edi,[v_obj]
	sub edi,vox_offs_tree_table
	mov eax,edi
	
	ret
endp

;output:
; eax - 1,2,4,8,16, ... ,128
align 4
proc vox_obj_get_node_bit_mask uses ebx ecx edi, v_obj:dword,\
coord_x:dword,coord_y:dword,coord_z:dword,k_scale:dword
	mov ecx,[k_scale]
	dec ecx
	mov eax,[coord_x]
	mov ebx,[coord_y]
	mov edi,[coord_z]
	cmp ecx,1
	jl .end_0
		shr eax,cl
		shr ebx,cl
		shr edi,cl
	.end_0:
	and eax,1
	bt ebx,0
	jnc @f
		bts eax,1
	@@:
	bt edi,0
	jnc @f
		bts eax,2
	@@:

	mov ecx,[v_obj]
	add ecx,vox_offs_tree_table
	@@:
		cmp al,byte[ecx]
		je @f
		inc ecx
		jmp @b
	@@:
	mov eax,1 ;ãáâ ­ ¢«¨¢ ¥¬ ¯¥à¢®­ ç «ì­®¥ §­ ç¥­¨¥ ¡¨â 
	sub ecx,[v_obj]
	sub ecx,vox_offs_tree_table
	jz @f
		shl eax,cl ;ᤢ¨£ ¥¬ ¡¨â
	@@:
	
	ret
endp

;äã­ªæ¨ï ¤«ï à¨á®¢ ­¨ï ¯ «¨âàë
align 4
proc buf2d_draw_palete, buf:dword, coord_x:dword, coord_y:dword,\
cell_w:dword, cell_h:dword, colors_w:dword, colors:dword
pushad
	mov ebx,[coord_x]
	mov edx,[coord_y]
	mov ecx,[colors]
	xor edi,edi
	mov esi,[cell_h]
	cld
	.cycle_0:
		stdcall get_palete_color, ecx,3
		stdcall [buf2d_filled_rect_by_size], [buf], ebx,edx, [cell_w],esi,eax
		inc edi
		cmp edi,[colors_w]
		jl @f
			mov ebx,[coord_x]
			sub ebx,[cell_w]
			dec ebx
			add edx,esi ;¢ëá®â  ï祩ª¨
			inc edx ;®âáâ㯠¬¥¦¤ã ï祩ª ¬¨
			xor edi,edi
		@@:
		add ebx,[cell_w]
		inc ebx
		loop .cycle_0
popad
	ret
endp

;input:
; ¥á«¨ r = 1 â® äã­ªæ¨ï ¢®§¢à é ¥â 8 梥⮢, 2 - 64, 3 - 512
;output:
; eax - color
align 4
proc get_palete_color uses ebx ecx edx edi, ind:dword, r:dword
	mov ecx,[r]
	xor edi,edi
	inc edi

	mov ebx,[ind]
	;b = b xor (b shr 1)
	;¯à¥®¡à §ã¥¬ ¨­¤¥ªá ¢ ª®¤¨à®¢ªã ƒà¥ï ¤«ï ¯®«ã祭¨ï ¡®«¥¥ ¯« ¢­ëå 梥⮢ëå ¯¥à¥å®¤®¢
	mov eax,ebx
	shr eax,1
	xor ebx,eax

	mov edx,ebx
	shr edx,cl
	mov eax,edx
	shr eax,cl

	mov ch,8
	sub ch,cl
	shr ecx,8
	shl ebx,cl
	shl edx,cl
	shl eax,cl

	shl edi,cl
	dec edi ;edi - 1...1b

	or ebx,edi
	or edx,edi
	or eax,edi

	shl eax,8
	mov al,dl
	shl eax,8
	mov al,bl
	and eax,0xffffff
	ret
endp