; MINI.ASM
; --------
; Shows how to place data and code inside (!!!) the XM track.
.386
.model flat
include ufmod.inc ; uFMOD API
.CODE
PE_BASE db "MENUET01"
dd 1
dd OFFSET _START ; Entry point
dd OFFSET BSS_START ; End of code and initialized data
dd OFFSET BSS_END ; End of uninitialized (BSS) data
dd OFFSET STACK_B ; Bottom of the stack
dd 0 ; Args
dd 0 ; Reserved
err_txt db "Error"
err_txt_l EQU $ - err_txt
_START:
; Start playback.
push XM_MEMORY
push xm_length
push BYTE PTR xm
; Let's place the stream right inside the code section.
xm_length EQU 905
xm EQU $ - PE_BASE
xm_unused_000 LABEL BYTE
; *** The following 60 bytes are not used. So, we'll place
; *** some code here.
; (the actual size and location of such gaps may be
; found out using the Eff utility)
call uFMOD_LoadSong
xor ebp,ebp ; global 0
; Stack fixing is required here, but in this simple
; example leaving ESP as it is won't harm. In a real
; application you should uncomment the following line:
; add esp,12
test eax,eax
jz error
; Wait for user input.
push uFMOD_WaveOut ; cbProc <- continue fetching data!
push BYTE PTR msg_txt_l ; cbString
push OFFSET msg_txt ; lpString
push OFFSET msg_cap ; szCap
call MessageBoxCB
; add esp,16
; Stop playback.
call uFMOD_StopSong
r: ; Exit.
lea eax,[ebp-1]
int 40h
error:
push ebp ; cbProc <- no callback
push BYTE PTR err_txt_l ; cbString
push BYTE PTR (err_txt - PE_BASE) ; lpString
push OFFSET err_cap ; szCap
call MessageBoxCB
; add esp,16
jmp r
org xm_unused_000 + 60
db 034h,000h,000h,000h,020h,000h,000h,000h,002h,000h,00Dh,000h,001h,000h,001h,000h
db 00Ah,000h,091h,000h,000h,001h,002h,003h,004h,005h,006h,007h,000h,001h,002h,003h
db 004h,005h,006h,007h,008h,009h,00Ah,00Bh,008h,009h,00Ch,00Bh,008h,009h,00Ah,00Bh
db 008h,009h,00Ch,00Bh,009h,000h,000h,000h,000h,004h,000h,001h,000h,083h,016h,001h
db 080h,080h,02Eh,001h,000h,00Eh,060h,080h,03Ah,001h,000h,00Eh,062h,081h,061h,083h
db 035h,001h,009h,000h,000h,000h,000h,004h,000h,001h,000h,083h,016h,001h,080h,080h
db 02Eh,001h,000h,00Eh,060h,080h,035h,001h,000h,00Eh,062h,081h,061h,083h,038h,001h
db 009h,000h,000h,000h,000h,004h,000h,001h,000h,083h,016h,001h,080h,080h,02Eh,001h
db 000h,00Eh,060h,080h,038h,001h,000h,00Eh,062h,080h,083h,033h,001h,009h,000h,000h
db 000h,000h,006h,000h,001h,000h,083h,016h,001h,080h,080h,02Eh,001h,000h,00Eh,060h
db 080h,033h,001h,000h,00Eh,061h,081h,061h,083h,035h,001h,083h,00Dh,001h,083h,036h
db 001h,080h,083h,036h,001h,009h,000h,000h,000h,000h,004h,000h,001h,000h,083h,00Fh
db 001h,080h,080h,02Eh,001h,000h,00Eh,060h,080h,036h,001h,000h,00Eh,062h,081h,061h
db 083h,033h,001h,009h,000h,000h,000h,000h,006h,000h,001h,000h,083h,00Fh,001h,080h
db 080h,02Eh,001h,000h,00Eh,060h,080h,033h,001h,000h,00Eh,061h,081h,061h,083h,02Eh
db 001h,083h,012h,001h,083h,033h,001h,080h,083h,035h,001h,009h,000h,000h,000h,000h
db 006h,000h,001h,000h,083h,016h,001h,080h,080h,02Eh,001h,000h,00Eh,060h,080h,035h
db 001h,000h,00Eh,061h,081h,061h,083h,02Eh,001h,083h,00Dh,001h,083h,031h,001h,080h
db 083h,02Eh,001h,009h,000h,000h,000h,000h,008h,000h,001h,000h,083h,012h,001h,098h
db 00Ah,001h,083h,019h,001h,088h,00Ah,083h,01Eh,001h,081h,061h,083h,012h,001h,080h
db 083h,014h,001h,080h,083h,01Bh,001h,080h,083h,020h,001h,080h,083h,014h,001h,080h
db 009h,000h,000h,000h,000h,008h,000h,001h,000h,083h,012h,001h,081h,061h,083h,019h
db 001h,080h,083h,01Eh,001h,080h,083h,012h,001h,080h,083h,019h,001h,083h,031h,001h
db 083h,01Eh,001h,080h,083h,012h,001h,083h,031h,001h,083h,019h,001h,080h,009h,000h
db 000h,000h,000h,008h,000h,001h,000h,083h,014h,001h,083h,033h,001h,083h,01Bh,001h
db 080h,083h,020h,001h,083h,031h,001h,083h,014h,001h,080h,083h,01Bh,001h,083h,030h
db 001h,083h,020h,001h,080h,083h,014h,001h,083h,031h,001h,083h,01Bh,001h,080h,009h
db 000h,000h,000h,000h,008h,000h,001h,000h,083h,016h,001h,083h,030h,001h,083h,01Dh
db 001h,083h,031h,001h,083h,022h,001h,083h,035h,001h,083h,016h,001h,098h,00Ah,001h
db 083h,01Dh,001h,088h,00Ah,083h,022h,001h,081h,061h,083h,016h,001h,080h,083h,01Dh
db 001h,080h,009h,000h,000h,000h,000h,008h,000h,001h,000h,083h,016h,001h,080h,083h
db 01Dh,001h,080h,083h,022h,001h,080h,083h,016h,001h,080h,083h,018h,001h,080h,083h
db 01Dh,001h,080h,083h,011h,001h,080h,083h,018h,001h,080h,009h,000h,000h,000h,000h
db 008h,000h,001h,000h,083h,016h,001h,083h,030h,001h,083h,01Dh,001h,083h,031h,001h
db 083h,019h,001h,083h,02Eh,001h,083h,016h,001h,098h,00Ah,001h,083h,01Dh,001h,088h
db 00Ah,083h,019h,001h,081h,061h,083h,016h,001h,080h,083h,01Dh,001h,080h,0F1h,000h
db 000h,000h
xm_unused_001 LABEL BYTE
; The following 23 bytes are not used.
; So, let's place the MessageBox text and caption instead.
; UI text messages.
msg_txt db "uFMOD ruleZ!"
msg_txt_l equ $ - msg_txt
msg_cap db "MASM32",0
err_cap db ":-(",0
org xm_unused_001 + 23
db 001h,000h,012h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h
db 000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h
db 000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h
db 000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h
db 000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h
db 000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h
db 000h,000h,000h,000h,000h,000h,000h,000h,040h,000h,008h,000h,02Ch,000h,00Eh,000h
db 008h,000h,018h,000h,016h,000h,020h,000h,008h,000h,02Dh,000h,00Dh,000h,032h,000h
db 004h,000h,03Ch,000h,007h,000h,044h,000h,004h,000h,05Ah,000h,000h,000h,064h,000h
db 000h,000h,06Eh,000h,000h,000h,000h,000h,020h,000h,00Ah,000h,028h,000h,01Eh,000h
db 018h,000h,032h,000h,020h,000h,03Ch,000h,020h,000h,046h,000h,020h,000h,050h,000h
db 020h,000h,05Ah,000h,020h,000h,064h,000h,020h,000h,06Eh,000h,020h,000h,078h,000h
db 020h,000h,082h,000h,020h,000h,009h,006h,001h,002h,004h,002h,003h,005h,001h,000h
db 000h,000h,000h,000h,080h,000h,00Ch,000h,000h,000h,000h,000h,000h,000h,00Ch,000h
db 000h,000h,040h,000h,001h,080h,0F9h,000h,0BFh,000h,0C3h,000h,00Ah,000h,057h,000h
db 06Eh,000h,023h,000h
; ----------------------------------------------------------
; void MessageBoxCB(szCap, lpString, cbString, cbProc);
; ----------------------------------------------------------
; This is similar to a Win32 MessageBox. The box is centered
; on screen. It contains a single-line text message and an
; "OK" button. This function returns when user closes the
; box (via the X button or via the OK button). An optional
; callback subroutine may be specified to be called when no
; events are pending in the event queue.
; NOTE: Doesn't work if you already have defined a window
; in the current process! Doesn't modify the event mask. So,
; make sure keyboard events are enabled before calling this
; function. This function doesn't check the validity of the
; supplied parameters!
; Parameters:
; szCap - A pointer to the ASCIIz string containing the
; caption. A trailing zero char IS required.
; lpString - A pointer to an ASCII string containing a single
; line message to pop up in the box. No trailing
; zero char is required.
; cbString - number of characters in string.
; cbProc - Address of the callback subroutine. Can be NULL.
sOK db "OK"
MessageBoxCB:
; EBP = 0
mov esi,[esp+12] ; cbString
mov edi,[esp+4] ; szCap
; Get screen metrics.
lea eax,[ebp+14]
int 40h
mov ecx,eax
movzx eax,ax
shr ecx,16 ; screen w
xchg eax,edx ; screen h
lea ebx,[esi*2+esi]
lea ebx,[ebx*2+28] ; w = string len * 6 + 28
sub ecx,ebx
shr ecx,1
shl ecx,16
or ebx,ecx
lea ecx,[ebp+52h] ; h = 52h
sub edx,ecx
shr edx,1
shl edx,16
or ecx,edx ; y = (screen h - window h) / 2
mov edx,ebx ; x = (screen w - window w) / 2
_MessageBoxCB_redraw:
; Start redraw.
push edx
lea eax,[ebp+12]
lea ebx,[ebp+1]
int 40h
; Define and draw window.
xor eax,eax
mov ebx,edx ; x, w (ECX: y, h)
mov edx,34C0C0C0h ; style and BG color
int 40h
; Define the OK button.
push esi
lea eax,[ebp+8]
sub ebx,28+0Ah
shr bx,1
shl ebx,16 ; x = (window w - button w) / 2
mov bx,18+0Ah ; w = 18 + 0Ah
mov ecx,001C0012h ; y = 1Ch, h = 12h
lea edx,[ebp+1] ; ID = close
mov esi,0C0C0C0h ; color
int 40h
; Draw the OK label.
lea eax,[ebp+4]
add ebx,90000h ; x = button x + 9
mov bx,22h ; y = 22h
xor ecx,ecx ; style, font and color
mov edx,OFFSET sOK ; string
lea esi,[ebp+2] ; length
int 40h
pop esi
; Draw text string.
lea eax,[ebp+4]
mov ebx,000A000Ah ; x = 0Ah, y = 0Ah
xor ecx,ecx ; style, font and color
mov edx,[esp+12] ; lpString
int 40h
; End redraw.
lea eax,[ebp+12]
lea ebx,[ebp+2]
int 40h
_MessageBoxCB_eventloop:
mov edx,[esp+20] ; cbProc
test edx,edx
lea eax,[ebp+10]
jz _MessageBoxCB_peekevent
; Invoke the callback.
call edx
lea eax,[ebp+23]
lea ebx,[ebp+10] ; wait for at most 0.1 sec
_MessageBoxCB_peekevent:
int 40h
dec eax
js _MessageBoxCB_eventloop
pop edx
jz _MessageBoxCB_redraw
ret
.DATA?
BSS_START LABEL BYTE
db 1020 dup (?)
STACK_B dd ? ; Stack bottom
BSS_END LABEL BYTE
END _START