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- ;AGA Fade
- ;--------
- ;Fades in a 32 colour AGA picture (24 bit colour). Then up to a specified
- ;colour (greenish yellow), and then out to black.
- ;
- ;Press left mouse button to exit.
-
- opt o+
-
- INCLUDE "exec/exec_lib.i"
- INCLUDE "games/games_lib.i"
- INCLUDE "games/games.i
-
- CALL MACRO
- jsr _LVO\1(a6)
- ENDM
-
- SECTION "AGAFade",CODE
-
- ;===========================================================================;
- ; INITIALISE DEMO
- ;===========================================================================;
-
- Start: MOVEM.L A0-A6/D1-D7,-(SP)
- move.l ($4).w,a6
- lea GMS_Name(pc),a1
- moveq #$00,d0
- CALL OpenLibrary
- move.l d0,GMS_Base
- beq Quit
-
- move.l GMS_Base(pc),a6 ;Initialise our screen.
- lea ScreenStruct(pc),a0
- CALL Add_Screen
- tst.l d0
- bne.s Error
-
- lea PicFile(pc),a0 ;a0 = Picture file.
- lea Picture(pc),a1 ;a1 = Picture struct.
- move.l ScreenStruct+SS_MemPtr1(pc),PIC_Data(a1)
- CALL LoadPic
- tst.w d0
- bne.s ReturnToDOS
-
- lea ScreenStruct(pc),a0 ;Now show the screen/pic.
- CALL Show_Screen
-
- ;===========================================================================;
- ; MAIN CODE
- ;===========================================================================;
-
- moveq #$00,d0 ;d0 = FadeState
- moveq #2,d1 ;d1 = Speed of fade.
- lea Palette(pc),a1 ;a1 = Palette to fade to.
- .f_in CALL Wait_OSVBL
- CALL B24_FadeToPalette ;Do the fade routine.
- tst.w d0 ;Has the fade finished yet?
- bne.s .f_in ;If not, keep doing it.
-
- moveq #$00,d0 ;d0 = FadeState
- moveq #2,d1 ;d1 = Speed of fade.
- move.l #$a5F343,d2 ;d2 = Colour.
- .f_mid CALL Wait_OSVBL
- CALL B24_FadeToColour ;Do the fade routine.
- tst.w d0 ;Has the fade finished yet?
- bne.s .f_mid ;If not, keep doing it.
-
- moveq #$00,d0 ;d0 = FadeState
- moveq #2,d1 ;d1 = Speed of fade.
- .f_out CALL Wait_OSVBL
- CALL B24_FadeToBlack ;Do the fade routine.
- tst.w d0 ;Has the fade finished yet?
- bne.s .f_out ;If not, keep doing it.
-
- ;===========================================================================;
- ; RETURN TO DOS
- ;===========================================================================;
-
- ReturnToDOS:
- move.l GMS_Base(pc),a6
- lea ScreenStruct(pc),a0
- CALL Delete_Screen ;Give back screen memory etc.
- Error move.l ($4).w,a6
- move.l GMS_Base(pc),a1
- CALL CloseLibrary
- Quit MOVEM.L (SP)+,A0-A6/D1-D7
- moveq #$00,d0
- rts
-
- ;===========================================================================;
- ; DATA
- ;===========================================================================;
-
- GMS_Name:
- dc.b "games.library",0
- even
- GMS_Base:
- dc.l 0
-
- AMT_PLANES = 5
-
- ScreenStruct:
- dc.l "GSV1",0
- dc.l 0,0,0 ;Screen_Mem1/2/3
- dc.l 0 ;Screen link.
- dc.l 0 ;Palette ;Address of palette.
- dc.l 0 ;Address of rasterlist.
- dc.l 32 ;Amt of colours in palette.
- dc.w 320,256,320,256 ;Screen & Pic Height/Width.
- dc.w AMT_PLANES ;Amt of planes.
- dc.w 0,0 ;X/Y top of screen offsets.
- dc.w 0,0 ;X/Y pic offsets.
- dc.l 0 ;Special attributes.
- dc.w LORES|COL24BIT ;Screen mode.
- dc.b INTERLEAVED ;Screen type
- dc.b 0 ;Reserved.
- even
-
- Palette dc.l $000000,$080808,$101010,$191919
- dc.l $212121,$292929,$313131,$3A3A3A
- dc.l $424242,$4A4A4A,$525252,$5A5A5A
- dc.l $636363,$6B6B6B,$737373,$7B7B7B
- dc.l $848484,$8C8C8C,$949494,$9C9C9C
- dc.l $A5A5A5,$ADADAD,$B5B5B5,$BDBDBD
- dc.l $C5C5C5,$CECECE,$D6D6D6,$7F7F7F
- dc.l $9B9B9B,$707070,$444444,$1E1E1E
-
- Picture dc.l "PCV1",0 ;Version header.
- dc.l 0 ;Source data.
- dc.w 320,256 ;Width, Height.
- dc.w AMT_PLANES ;Amount of Planes.
- dc.l 32 ;Amount of colours.
- dc.l Palette ;Source palette (remap).
- dc.w LORES|COL24BIT ;Screen mode.
- dc.w INTERLEAVED ;Destination
- dc.l 0 ;Parameters.
-
- PicFile dc.b "GAMESLIB:data/IFF.Loading",0
- even
-