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- ;HiRes Picture Display
- ;---------------------
- ;Opens a screen of 640 pixels width in HIRES mode. You can even try
- ;SuperHiRes (SHIRES) if you change the appropriate flag in the GameScreen
- ;structure.
-
- opt o+
-
- INCLUDE "exec/exec_lib.i"
- INCLUDE "games/games_lib.i"
- INCLUDE "games/games.i"
-
- CALL MACRO
- jsr _LVO\1(a6)
- ENDM
-
- SECTION "HiResScreen",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.s Quit
-
- move.l GMS_Base(pc),a6 ;Tell GMS that we want to add a
- CALL SetUserPri
-
- lea ScreenStruct(pc),a0 ;screen for use.
- CALL Add_Screen
- tst.l d0
- bne.s Error
-
- lea Picture(pc),a1 ;a1 = Picture struct.
- move.l SS_MemPtr1(a0),PIC_Data(a1)
- lea PicFile(pc),a0 ;a0 = Picture file.
- CALL LoadPic
- tst.w d0
- bne.s ReturnToDOS
-
- lea ScreenStruct(pc),a0 ;Now show the screen/pic.
- CALL Show_Screen
-
- ;===========================================================================;
- ; MAIN LOOP
- ;===========================================================================;
-
- CALL Wait_LMB
-
- ;===========================================================================;
- ; 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 GMS_Base(pc),a1
- move.l ($4).w,a6
- 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 = 4
-
- ScreenStruct:
- dc.l "GSV1",0
- dc.l 0,0,0 ;Screen_Mem1/2/3
- dc.l 0 ;Screen link.
- dc.l Palette ;Address of palette
- dc.l 0 ;Address of rasterlist
- dc.l 16 ;Amt of colours in palette.
- dc.w 640,256,640,256 ;Screen & Pic Height/Width.
- dc.w AMT_PLANES ;Amt of planes
- dc.w 0,0 ;X/Y screen offset.
- dc.w 0,0 ;X/Y picture offset.
- dc.l 0 ;Special attributes.
- dc.w HIRES ;Screen mode.
- dc.b INTERLEAVED ;Screen type
- dc.b 0 ;Reserved.
- even
-
- Palette dc.w $0000,$0400,$0501,$0501,$0601,$0701,$0701,$0801
- dc.w $0901,$0A01,$0B02,$0432,$0CC0,$0F00,$0211,$0880
-
- 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 16 ;Amount of colours.
- dc.l Palette ;Source palette (remap).
- dc.w HIRES ;Screen mode.
- dc.w INTERLEAVED ;Destination
- dc.l 0 ;Parameters.
-
- PicFile dc.b "GAMESLIB:data/IFF.Pic640x256",0
- even
-