From 63cd6f0ac856a8e9adb19393aaf2f19c53134da0 Mon Sep 17 00:00:00 2001
From: IgorA <aie85playm@gmail.com>
Date: Mon, 17 Mar 2025 00:43:15 +0200
Subject: [PATCH] Movback: Added support window resizing

---
 programs/demos/movback/Tupfile.lua |   7 +-
 programs/demos/movback/movback.asm | 107 +++++++++++++++++++++--------
 2 files changed, 81 insertions(+), 33 deletions(-)

diff --git a/programs/demos/movback/Tupfile.lua b/programs/demos/movback/Tupfile.lua
index dd4f17306..01198600b 100644
--- a/programs/demos/movback/Tupfile.lua
+++ b/programs/demos/movback/Tupfile.lua
@@ -1,7 +1,2 @@
 if tup.getconfig("NO_FASM") ~= "" then return end
-HELPERDIR = (tup.getconfig("HELPERDIR") == "") and "../.." or tup.getconfig("HELPERDIR")
-tup.include(HELPERDIR .. "/use_fasm.lua")
-add_include(tup.getvariantdir())
-
-tup.rule("echo lang fix " .. ((tup.getconfig("LANG") == "") and "en_US" or tup.getconfig("LANG")) .. " > %o", {"lang.inc"})
-tup.rule({"movback.asm", extra_inputs = {"lang.inc"}}, FASM .. " %f %o " .. tup.getconfig("KPACK_CMD"), "movback")
+tup.rule("movback.asm", "fasm %f %o " .. tup.getconfig("KPACK_CMD"), "movback")
\ No newline at end of file
diff --git a/programs/demos/movback/movback.asm b/programs/demos/movback/movback.asm
index 040a9714b..ee5e5712e 100644
--- a/programs/demos/movback/movback.asm
+++ b/programs/demos/movback/movback.asm
@@ -7,14 +7,18 @@
 include "../../macros.inc"
 include "../../KOSfuncs.inc"
 
-WND_SIZE_X		= 320
-WND_SIZE_Y		= 200
+KOS_APP_START
+
+Screen_W    dd 600-10 ;10 px for borders
+Screen_H    dd 400
 
 VC_DELTA = 1
 HC_DELTA = 2
 
-MEOS_APP_START
+
 CODE
+    mcall SF_SYS_MISC,SSF_HEAP_INIT
+    call OnResize
     fninit
     call init_sinus_table
     call init_background
@@ -22,6 +26,7 @@ CODE
     mcall SF_SET_EVENTS_MASK, 101b
     jmp .paint_window
 
+align 4
 .event_loop:
     mcall SF_WAIT_EVENT_TIMEOUT, 1
 
@@ -39,24 +44,63 @@ CODE
     add word [hor_counter],HC_DELTA
     call handle_animation
     xor ebp,ebp
-    mcall SF_PUT_IMAGE_EXT, virtual_screen_8,<WND_SIZE_X,WND_SIZE_Y>,<0,0>,8,_palette
+    mov ecx,[Screen_W]
+    shl ecx,16
+    add ecx,[Screen_H]
+    mcall SF_PUT_IMAGE_EXT, [virtual_screen_8],,<0,0>,8,_palette
     jmp .event_loop
 
 .paint_window:
     mcall SF_THREAD_INFO, proc_info,-1
+    cmp dword[proc_info.box.height],0
+    je .resize_end
+    mcall SF_STYLE_SETTINGS, SSF_GET_SKIN_HEIGHT
+    add eax,4
+    sub eax,[proc_info.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,[proc_info.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_BEGIN_DRAW
 
     mcall SF_STYLE_SETTINGS, SSF_GET_SKIN_HEIGHT
-    lea ecx,[eax + (100 shl 16) + WND_SIZE_Y+4]
+    lea ecx,[eax + (100 shl 16) +4]
+    add ecx,[Screen_H]
     mov edi,title
-    mcall SF_CREATE_WINDOW, <100,WND_SIZE_X+9>,,0x74000000
+    mov ebx,(100 shl 16)+9
+    add ebx,[Screen_W]
+    mcall SF_CREATE_WINDOW,,,0x73000000
 
     test [proc_info.wnd_state], 0x04
     jnz @f
 
     xor ebp,ebp
-    mcall SF_PUT_IMAGE_EXT, virtual_screen_8,<WND_SIZE_X,WND_SIZE_Y>,<0,0>,8,_palette
-  @@:
+    mov ecx,[Screen_W]
+    shl ecx,16
+    add ecx,[Screen_H]
+    mcall SF_PUT_IMAGE_EXT, [virtual_screen_8],,<0,0>,8,_palette
+@@:
     mcall SF_REDRAW, SSF_END_DRAW
 
     jmp .event_loop
@@ -110,8 +154,16 @@ init_background:
     jne .ib_vertical
     ret
 
-s_OFFX		= 0
-s_OFFY		= 2
+align 4
+OnResize:
+    mov ecx,[Screen_W]
+    imul ecx,[Screen_H]
+    mcall SF_SYS_MISC,SSF_MEM_REALLOC,,[virtual_screen_8]
+    mov [virtual_screen_8],eax
+    ret
+
+s_OFFX    = 0
+s_OFFY    = 2
 
 handle_animation:
     sub esp,4
@@ -125,10 +177,12 @@ handle_animation:
     add ebx,ebx
     mov ax,[sinetable+ebx]
     mov [esp+s_OFFX],ax
-    mov edi,virtual_screen_8
-    mov edx,WND_SIZE_Y-1
+    mov edi,[virtual_screen_8]
+    mov edx,[Screen_H]
+    dec edx
 .a_ver:
-    mov ecx,WND_SIZE_X-1
+    mov ecx,[Screen_W]
+    dec ecx
     mov bx,[esp+s_OFFY]
     add bx,dx
     and ebx,255
@@ -147,26 +201,25 @@ handle_animation:
     ret
 
 DATA
-  delta_angle dd 0.0245436926066		; pi/128
-  scale_sin dd 128.0
+    delta_angle dd 0.0245436926066        ; pi/128
+    scale_sin dd 128.0
 
-  title      db 'MoveBack',0
+    title    db 'MoveBack',0
 
 UDATA
-  ver_counter dd ?
-  hor_counter dd ?
+    ver_counter dd ?
+    hor_counter dd ?
 
-  _palette:	rd 256
+    _palette:    rd 256
 
-  virtual_screen_8:
-  	rb WND_SIZE_X*WND_SIZE_Y
+    virtual_screen_8 dd ?
 
-  background:
-  	rb 256*256
+background:
+    rb 256*256
 
-  sinetable:
-  	rw 256
+sinetable:
+    rw 256
 
-  proc_info	process_information
+    proc_info    process_information
 
-MEOS_APP_END
+KOS_APP_END