From 31ca1c76bbcec88f9fa039391d122f67020fc58f Mon Sep 17 00:00:00 2001
From: IgorA <aie85playm@gmail.com>
Date: Thu, 13 Mar 2025 11:48:52 +0200
Subject: [PATCH] Apps/unvwater: Added support for window resizing

---
 programs/demos/unvwater/unvwater.asm | 117 +++++++++++++++++++--------
 1 file changed, 83 insertions(+), 34 deletions(-)

diff --git a/programs/demos/unvwater/unvwater.asm b/programs/demos/unvwater/unvwater.asm
index 90261f9fc..2a409accf 100644
--- a/programs/demos/unvwater/unvwater.asm
+++ b/programs/demos/unvwater/unvwater.asm
@@ -1,8 +1,11 @@
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-; A unvwater demo
-; Programmed by Octavio Vega Fernandez
+; SPDX-License-Identifier: GPL-2.0-only
+; Unvwater demo
+; Copyright (C) 2010-2025 KolibriOS team
+;
+; Initially programmed by Octavio Vega Fernandez (c) in OctASM
 ; http://octavio.vega.fernandez.googlepages.com/CV4.HTM
-; Converted to KolibriOS, By Asper
+; Converted to FASM for KolibriOS by Asper
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
 use32
@@ -21,24 +24,13 @@ include '../../proc32.inc'
 include '../../macros.inc'
 include '../../KOSfuncs.inc'
 
-macro start_draw_window x,y,xsize,ysize,areacolor,caption;,capsize
-{
-	mcall SF_REDRAW, SSF_BEGIN_DRAW
-	mcall SF_STYLE_SETTINGS, SSF_GET_SKIN_HEIGHT
-	push	eax
-	lea	ecx, [y*65536+ysize+eax]; [y start] *65536 + [y size] + [skin_height]
-	mov	ebx, x*65536+xsize	; [x start] *65536 + [x size]
-	mov	edx, areacolor		; color of work area RRGGBB
-	mov	edi, caption;0x00ddeeff          ; color of frames    RRGGBB
-	mcall SF_CREATE_WINDOW
-	pop	eax
-}
-
-SCREEN_WIDTH   equ    (600-10) ;10 px for borders
-SCREEN_HEIGHT  equ    400
-
+Screen_W dd 600-10 ;10 px for borders
+Screen_H dd 400
 
+align 4
 STARTAPP:
+	mcall SF_SYS_MISC,SSF_HEAP_INIT
+	call OnResize
 	mcall SF_SYSTEM, SSF_GET_CPU_FREQUENCY
 	shr  eax, 28
 	mov  dword [delay], eax
@@ -51,13 +43,17 @@ init_palette:
 	inc  al
 	jnz  @b
 
+align 4
 MAIN:
 	xor esi, esi
-	mov ecx, SCREEN_WIDTH*SCREEN_HEIGHT
+	mov edi, [img]
+	mov ecx, [Screen_W]
+	imul ecx, [Screen_H]
 l11:
 	xor  ebx, ebx
 	mov  edx, 303h
-	sub  esi, SCREEN_WIDTH+1
+	sub  esi, [Screen_W]
+	dec  esi
 l2:
 	cmp esi,0
 	jge @f
@@ -68,18 +64,21 @@ l2:
 		sub esi, ecx
 	@@:
 
-	add  bl,  [esi+img]
+	add  bl,  [esi+edi]
 	adc  bh,  ah
 	inc  esi
 	dec  dh
 	jnz  l2
 
 	mov  dh, 3
-	add  esi, SCREEN_WIDTH-3
+	add  esi, [Screen_W]
+	sub  esi, 3
 	dec  dl
 	jnz  l2
 
-	sub  esi, 2*SCREEN_WIDTH-1
+	sub  esi, [Screen_W]
+	sub  esi, [Screen_W]
+	inc  esi
 	cmp esi,0
 	jge @f
 		add esi, ecx
@@ -89,7 +88,7 @@ l2:
 		sub esi, ecx
 	@@:
 
-	mov  al, [img+esi]
+	mov  al, [edi+esi]
 	sub  bx, ax
 	shl  ax, 2
 	sub  bx, ax
@@ -98,7 +97,7 @@ l2:
 	mov  ax, bx
 	shr  ax, 7
 	sub  bx, ax
-	mov  [img+esi], bl
+	mov  [edi+esi], bl
 	inc  esi
 
 	cmp esi, ecx
@@ -136,9 +135,48 @@ button:
 	je      close_app
 	jmp     MAIN
 
+align 4
 draw_window:
-	start_draw_window 100,70,SCREEN_WIDTH+9,SCREEN_HEIGHT+4,0x54224466,labelt;, 14;labellen-labelt
-	mov     dword [skin_h], eax
+	mcall   SF_REDRAW, SSF_BEGIN_DRAW
+	mcall   SF_STYLE_SETTINGS, SSF_GET_SKIN_HEIGHT
+	mov     [skin_h], eax
+	lea	ecx, [70*65536+4+eax]
+	add ecx, [Screen_H] ; [y start] *65536 + [y size] + [skin_height]
+	mov	ebx, 100 shl 16
+	add ebx, [Screen_W]
+	add ebx, 9
+	mov	edi, labelt
+	mcall SF_CREATE_WINDOW,,, 0x53224466
+
+	mcall SF_THREAD_INFO,procinfo,-1
+	mov eax, [skin_h]
+	add eax, 4
+	sub eax, [procinfo.box.height]
+	neg eax
+	cmp eax, [Screen_H]
+	je .end_h
+	cmp eax,32 ;min height
+	jge @f
+		mov eax,32
+	@@:
+		mov [Screen_H],eax
+		xor eax,eax
+		mov [Screen_W],eax
+	.end_h:
+	
+	mov eax,[procinfo.box.width]
+	sub eax,9
+	cmp eax,[Screen_W]
+	je .resize_end
+	cmp eax,64 ;min width
+	jge @f
+		mov eax,64
+	@@:
+	mov [Screen_W],eax
+
+	call OnResize
+	.resize_end:
+
 	mcall   SF_REDRAW, SSF_END_DRAW
 	ret
 
@@ -148,22 +186,33 @@ fail:
 close_app:
 	mcall   SF_TERMINATE_PROCESS
 
+align 4
+OnResize:
+	mov ecx,[Screen_W]
+	imul ecx,[Screen_H]
+	mcall SF_SYS_MISC,SSF_MEM_REALLOC,,[img]
+	mov byte[eax],1 ; set the coordinate of the start of the first wave:
+					; eax+0 -> point(0,0), eax+H*W+W -> point(W,H)
+	mov [img],eax
+	ret
 
-
+align 4
 copy_buffer_to_video:
 	pusha
 	;mcall   SF_SYSTEM, SSF_WAIT_RETRACE
 	mcall   SF_SLEEP, [delay]
 
-	mov     eax, dword [skin_h]
+	mov     eax, [skin_h]
 	lea     edx, [5*65536+eax]
 
-	mov     ecx, SCREEN_WIDTH*65536+SCREEN_HEIGHT ;ecx = w*65536+h
+	mov     ecx, [Screen_W]
+	shl     ecx, 16
+	add     ecx, [Screen_H]
 	;mov     edx, 5*65536+25 ;edx = x*65536+y
 	mov     esi, 8
 	mov     edi, Paleta
 	xor     ebp, ebp
-	mcall   SF_PUT_IMAGE_EXT, img
+	mcall   SF_PUT_IMAGE_EXT, [img]
 	popa
 	ret
 
@@ -176,8 +225,8 @@ skin_h   dd   25 ; Skin height.
 
 I_END:
 Paleta   rb 1024
-img      db 1
-	rb SCREEN_WIDTH*SCREEN_HEIGHT
+img      dd 0
+procinfo process_information
 	rb 256
 align 4
 STACKTOP: