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https://github.com/KolibriOS/kolibrios.git
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240 lines
5.3 KiB
NASM
240 lines
5.3 KiB
NASM
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; JMP2PAT.ASM
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; -----------
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; Sometimes it makes sense merging various XM tracks
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; sharing the same instruments in a single XM file.
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; This example program uses such an XM file actually
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; containing 3 tracks and the _uFMOD_Jump2Pattern
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; function to play all 3 tracks in the same file.
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; A precompiled version (not packed or whatever) is
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; available in bin\
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use32
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org 0
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db 'MENUET01'
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dd 1
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dd START ; Entry point
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dd uFMOD_IMG_END ; End of code and initialized data
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dd MEMORY_END ; End of uninitialized (BSS) data
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dd STACK_B ; Bottom of the stack
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dd 0 ; Args
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dd 0 ; Reserved
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; uFMOD setup:
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UF_FREQ equ 48000 ; Set sampling rate to 48KHz (22050, 44100, 48000)
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UF_RAMP equ STRONG ; Select STRONG interpolation (NONE, WEAK, STRONG)
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UD_MODE equ UNSAFE ; Select UNSAFE mode (NORMAL, UNSAFE)
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DEBUG equ 0 ; Skip debug-board messages
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NOLINKER equ 1 ; Select "no linker" mode
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; uFMOD constants:
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XM_MEMORY = 1
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XM_FILE = 2
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XM_NOLOOP = 8
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XM_SUSPENDED = 16
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uFMOD_MIN_VOL = 0
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uFMOD_MAX_VOL = 25
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uFMOD_DEFAULT_VOL = 25
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; BLITZXMK.XM tracked by Kim (aka norki):
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; [00:07] - track #1
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; [08:10] - track #2
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; [11:13] - track #3
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xm file '..\ufmodlib\media\BLITZXMK.XM'
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xm_length = $ - xm
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; Optimization:
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; This header file is suitable for blitzxmk.xm track only!
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; If you change the track, update the optimization header.
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; (Use the standart eff.inc file for a general purpose player app.)
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include '..\ufmodlib\media\blitz.eff.inc'
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; Include the GUI framework.
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FRMWRK_CALLBACK_ON equ 0 ; Disable callback
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include 'frmwrk.asm'
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; UI text messages.
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vals dd 0,8,11 ; Preset pattern indexes
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wnd_btns1 db "1 2 3 Pause "
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wnd_btns2 db "1 2 3 Resume"
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wnd_btns_l = $ - wnd_btns2
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wnd_cap db "Jump2Pattern",0
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err_txt db "Error"
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err_txt_l = $ - err_txt
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err_cap db ":-(",0
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START:
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; Start playback.
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push XM_MEMORY
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push xm_length
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push xm
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call _uFMOD_LoadSong
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; Stack fixing is required here, but in this simple
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; example leaving ESP as it is won't harm. In a real
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; application you should uncomment the following line:
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; add esp,12
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test eax,eax
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jz error
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xor ebp,ebp ; global 0
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mov [wnd_btns],wnd_btns1
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; Switch keyboard mode to SCANCODE.
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lea ebx,[ebp+1]
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lea eax,[ebp+66]
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mov ecx,ebx
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int 40h
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; Get screen metrics.
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lea eax,[ebp+14]
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int 40h
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mov ecx,eax
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movzx eax,ax
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shr ecx,16 ; screen w
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xchg eax,edx ; screen h
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mov ebx,wnd_btns_l*6+42
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sub ecx,ebx
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shr ecx,1
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shl ecx,16
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or ebx,ecx
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lea ecx,[ebp+40h] ; h = 40h
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sub edx,ecx
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shr edx,1
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shl edx,16
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or ecx,edx ; y = (screen h - window h) / 2
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mov edx,ebx ; x = (screen w - window w) / 2
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redraw:
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; Start redraw.
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push edx
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lea eax,[ebp+12]
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lea ebx,[ebp+1]
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int 40h
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; Define and draw window.
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xor eax,eax
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mov ebx,edx ; x, w (ECX: y, h)
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mov edx,34C0C0C0h ; style and BG color
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mov edi,wnd_cap
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int 40h
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; Define the 1 2 3 Pause/Resume buttons.
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lea eax,[ebp+8]
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mov ebx,0A0012h ; x = 0Ah, w = 12h
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mov ecx,0A0012h ; y = 0Ah, h = 10h
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lea edx,[ebp+10] ; ID = #10
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mov esi,0C0C0C0h ; color
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int 40h
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mov ebx,280012h ; x = 28h, w = 12h
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inc edx ; ID = #11
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int 40h
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mov ebx,460012h ; x = 46h, w = 12h
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inc edx ; ID = #12
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int 40h
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mov ebx,640030h ; x = 64h, w = 30h
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inc edx ; ID = #13
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int 40h
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; Draw the labels.
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lea eax,[ebp+4]
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mov ebx,120011h ; x = 12h, y = 11h
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xor ecx,ecx ; style, font and color
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mov edx,[wnd_btns] ; string
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lea esi,[ebp+wnd_btns_l] ; length
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int 40h
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; End redraw.
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lea eax,[ebp+12]
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lea ebx,[ebp+2]
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int 40h
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eventloop:
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; Update the PCM buffer.
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call _uFMOD_WaveOut
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lea eax,[ebp+23]
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lea ebx,[ebp+10] ; wait for at most 0.1 sec
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int 40h
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dec eax
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js eventloop ; 0 = idle
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jz redraw ; 1 = redraw
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dec eax ; 2 = keyboard event
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jnz chk_eventbutton
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; Get key scancode.
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lea eax,[ebp+2]
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int 40h
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cmp ah,19h ; P
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je do_PauseResume
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cmp ah,13h ; R
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je do_PauseResume
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chk_kb123:
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movzx eax,ah
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sub eax,2
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jmp do_Jump2Pat123
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chk_eventbutton: ; 3 = button event
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lea eax,[ebp+17]
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int 40h
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cmp ah,1 ; Close
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je break_loop
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cmp ah,13 ; Pause/Resume
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jne chk_btn123
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do_PauseResume:
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cmp BYTE [paused],1
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mov edx,_uFMOD_Resume
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mov ebx,wnd_btns1
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je do_Resume
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mov edx,_uFMOD_Pause
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mov ebx,wnd_btns2
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do_Resume:
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call edx
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xor BYTE [paused],1
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mov [wnd_btns],ebx
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jmp redraw
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chk_btn123: ; 1 2 3
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movzx eax,ah
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sub eax,10
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do_Jump2Pat123:
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cmp eax,3
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jae eventloop
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push DWORD [vals+eax*4]
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call _uFMOD_Jump2Pattern
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pop eax ; fix stack
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jmp eventloop
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break_loop:
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; Stop playback.
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call _uFMOD_StopSong
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r: ; Exit.
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xor eax,eax
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dec eax
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int 40h
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error:
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push err_txt_l ; cbString
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push err_txt ; lpString
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push err_cap ; szCap
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call _MessageBox
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; add esp,16
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jmp r
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; Include the whole uFMOD sources here. (Right after
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; your main code to avoid naming conflicts, but still
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; inside your code section.)
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macro PUBLIC symbol {} ; hide all publics
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include '..\ufmodlib\src\fasm.asm'
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wnd_btns dd ?
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paused db ?
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align 4
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rb 1020
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STACK_B dd ? ; Stack bottom
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MEMORY_END: ; End of uninitialized (BSS) data
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