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- *******************************************************************************
- * ILBM loading and remapping example
- *******************************************************************************
- * INFO loads a 320x256x8 ILBM with a non-RGBx palette and remaps it
- * to a FullRes screen
- * NOTE - optionally you can pass as CLI argument the name of another
- * 320x256x8 ILBM to load (yours must have the same size and
- * must respect all the restrictions of TCS_LdILBM(), otherwise
- * the program won't execute or the graphics will look bad -
- * not dangerous, anyway!)
- * - LMB to quit
- *******************************************************************************
-
- machine 68020
-
- include INCLUDES:libraries/tcs.i
- include INCLUDES:libraries/tcs_lib.i
- include /inc/macros.i
-
-
-
- *******************************************************************************
- * definitions
- *******************************************************************************
-
- DSPLWD = 320 ;our TCS display width and
- DSPLHT = 256 ;height (LORES pixels)
- SCRWD = 320 ;TCS screen width and
- SCRHT = 256 ;height (FullRes pixels)
- DSPLX0 = $81*4 ;display start
- DSPLY0 = $2c ;position (SHRES pixels)
- DSPLX1 = DSPLX0+DSPLWD*4 ;display end
- DSPLY1 = DSPLY0+DSPLHT ;position (SHRES pixels)
- DSPLBRTNS = 256 ;min brightness
- GFXCTXT = 0 ;graphic context
- CWBTM = 0 ;clipping
- CWTOP = 0 ;window
- CWRT = 0 ;borders
- CWLF = 0 ;coordinates
- VDOMODE = TCS_VMf_FullRes ;display video mode
-
- ARGSNO = 2 ;command line arguments No.
-
-
-
- *******************************************************************************
- * code start
- *******************************************************************************
-
- include /inc/shl_strtup.i
-
-
-
- *******************************************************************************
- * init
- *******************************************************************************
-
- _PrgInit movea.l CmdLnArgs,a0 ;picture filename address
- tst.l a0
- bne.s .ld ;if filename specified...
- lea.l PicFlNm,a0 ;default picture
- .ld movea.l ([DIAdr.l],TCS_DI_CSAdr.w),a1 ;directly to
- move.l #SCRWD*SCRHT,d0 ;screen buffer
- CALLTCS LdILBM ;load it
- cmpi.l #TCS_PE_OK,d0 ;success?
- blo.s .fail ;if not...
- move.l d0,PicIIAdr ;else store its ILBMInfo structure address
- rts ;& clr ccr.Z to signal success
- .fail move.w #4,ccr ;signal error
- rts
-
-
-
- *******************************************************************************
- * main
- *******************************************************************************
-
- _PrgMain movea.l DIAdr,a0
- movea.l PicIIAdr,a3 ;picture ILBMInfo structure address
-
- movea.l CmdLnArgs+4,a1
- tst.l a1
- beq.s .SuggRGBxMode ;if user didn't specify a mode...
- move.l (a1),d3 ;RGBx mode wanted by user
- bra.s .SetRGBxMode
- .SuggRGBxMode move.b (TCS_II_RGBxMode,a3),d3 ;RGBx mode suggested for the picture
-
- .SetRGBxMode move.b d3,d0 ;RGBx mode
- move.w #256,d1
- CALLTCS SetRGBxMode ;set mode for display
-
- movea.l (TCS_II_GfxAdr,a3),a1 ;address of picture graphics
- movea.l (TCS_II_PalAdr,a3),a2 ;address of picture palette (CLUT)
- move.b d3,d0 ;RGBx mode
- move.w #SCRWD,d1
- move.w #SCRHT,d2
- movea.l a1,a0 ;source & destination are the same!
- CALLTCS CLUTPicToRGBx ;convert to RGBx
-
- movea.l DIAdr,a0 ;render FullRes screen
- CALLTCS CPUFRPass0 ;to make pixels visible
-
- WTLMB
- rts
-
-
-
- *******************************************************************************
- * cleanup
- *******************************************************************************
-
- _PrgClnUp movea.l PicIIAdr,a0 ;free all the memory
- CALLTCS UnLdILBM ;allocated for the picture
- rts
-
-
-
- *******************************************************************************
- * data
- *******************************************************************************
-
- include /inc/dat.i
-
- cnop 0,4
- PicIIAdr dc.l 0 ;picture ILBMInfo structure address
- tmplt dc.b "PICTURE=P,RGBxMODE=R/N",0 ;template for ReadArgs()
- PicFlNm dc.b "/pix/TigerMask.iff",0 ;default picture
-