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- /* ************* */
- /* chunkytools.e */
- /* ************* */
-
-
-
- /*
- WBBump - Bumpmapping on the Workbench!
-
- Copyright (C) 1999 Thomas Jensen - dm98411@edb.tietgen.dk
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software Foundation,
- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-
-
-
-
- OPT MODULE
-
-
- MODULE 'graphics/gfx',
- 'graphics/rastport',
-
- 'exec/memory'
-
-
-
-
- EXPORT PROC alloc_temprp(rp, width)
- DEF temprp=NIL:PTR TO rastport,
- i
-
-
- NEW temprp
-
- CopyMem(rp, temprp, SIZEOF rastport)
-
- temprp.layer := NIL
-
- temprp.bitmap := NewR(SIZEOF bitmap)
-
- temprp.bitmap.bytesperrow := Shl(Shr(width + 15, 4), 1)
- temprp.bitmap.rows := 1
- temprp.bitmap.flags := BMF_STANDARD
- temprp.bitmap.depth := 8
- FOR i := 0 TO 7
- /* Under what circumstances can planes be allocated in FAST ??? */
- temprp.bitmap.planes[i] := NewM(temprp.bitmap.bytesperrow, MEMF_CHIP)
- ENDFOR
-
- ENDPROC temprp
-
-
- EXPORT PROC free_temprp(temprp:PTR TO rastport)
- DEF i
-
- IF temprp
- IF temprp.bitmap
- FOR i := 0 TO 7
- IF temprp.bitmap.planes[i] THEN Dispose(temprp.bitmap.planes[i])
- ENDFOR
- Dispose(temprp.bitmap)
- ENDIF
- END temprp
- ENDIF
- ENDPROC
-
-
-
-
- EXPORT PROC bitmap2chunky(bm:PTR TO bitmap, buf, x, y, w, h) HANDLE
- DEF rp=NIL:PTR TO rastport,
- temprp
-
- NEW rp
- InitRastPort(rp)
- rp.bitmap := bm
-
- temprp := alloc_temprp(rp, w)
-
- rastport2chunky(rp, buf, x, y, w, h, temprp)
-
- EXCEPT DO
- IF temprp THEN free_temprp(temprp)
- END rp
- ENDPROC
-
-
-
- EXPORT PROC rastport2chunky(rp:PTR TO rastport, buf, x, y, w, h, temprp) HANDLE
- DEF tempbuf=NIL:PTR TO CHAR,
- lineadr=0,
- iy
-
-
- tempbuf := NewR(w + 16)
-
-
- lineadr := 0
- FOR iy := 0 TO h-1
- ReadPixelLine8(rp, x, y+iy, w, tempbuf, temprp)
- CopyMem(tempbuf, buf + lineadr, w)
- lineadr := lineadr + w
- ENDFOR
-
-
- EXCEPT DO
- IF tempbuf THEN Dispose(tempbuf)
- ReThrow()
- ENDPROC
-
-
-
-
- EXPORT PROC chunky2bitmap(bm:PTR TO bitmap, buf, x, y, w, h) HANDLE
- DEF rp=NIL:PTR TO rastport,
- temprp=NIL
-
- NEW rp
- InitRastPort(rp)
- rp.bitmap := bm
-
- temprp := alloc_temprp(rp, w)
-
- IF chunky2rastport(rp, buf, x, y, w, h, temprp) = FALSE THEN Raise(-1)
-
- EXCEPT DO
- IF temprp THEN free_temprp(temprp)
- END rp
- IF exception THEN RETURN FALSE
- ENDPROC TRUE
-
-
-
-
-
- EXPORT PROC chunky2rastport(rp:PTR TO rastport, buf, x, y, w, h, temprp) HANDLE
- DEF lineadr=0,
- iy
-
-
- lineadr := 0
- FOR iy := 0 TO h-1
- WritePixelLine8(rp, x, y+iy, w, buf + lineadr, temprp)
- lineadr := lineadr + w
- ENDFOR
-
-
- EXCEPT DO
- IF exception THEN RETURN FALSE
- ENDPROC TRUE
-
-
-
-
-