Skip to content

L
libSDL
Commit f31a195b authored by Patrice Mandin's avatar Patrice Mandin
Browse files
Options

New C2P conversion routine 

--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%40735
parent 4c968411
Show whitespace changes
Inline Side-by-side
Showing with 253 additions and 461 deletions
src/video/ataricommon/Makefile.am
View file @ f31a195b
...@@ -8,8 +8,6 @@ libvideo_ataricommon_la_SOURCES = $(ATARICOMMON_SRCS) ...@@ -8,8 +8,6 @@ libvideo_ataricommon_la_SOURCES = $(ATARICOMMON_SRCS)
ATARICOMMON_SRCS = \ ATARICOMMON_SRCS = \
SDL_ataric2p.S \ SDL_ataric2p.S \
SDL_ataric2p_s.h \ SDL_ataric2p_s.h \
SDL_ataric2p060.c \
SDL_ataric2p060_c.h \
SDL_atarieddi.S \ SDL_atarieddi.S \
SDL_atarieddi_s.h \ SDL_atarieddi_s.h \
SDL_atarievents.c \ SDL_atarievents.c \
......
src/video/ataricommon/SDL_ataric2p.S
View file @ f31a195b
...@@ -26,70 +26,24 @@ static char rcsid = ...@@ -26,70 +26,24 @@ static char rcsid =
#endif #endif
/* /*
* Chunky to planar conversion routine Chunky to planar conversion routine
* 1 byte/pixel -> 4 or 8 bit planes 1 byte/pixel -> 4 or 8 bit planes
*
* Patrice Mandin
* Xavier Joubert
*/
/* ------------ Function pointers ------------ */ Patrice Mandin
Xavier Joubert
.globl _Atari_C2pInit Mikael Kalms
.globl _Atari_C2pConvert */
.data
.even
.comm _Atari_C2pInit,4
.comm _Atari_C2pConvert,4
/* ------------ Conversion Table C2P ------------ */
.globl _Atari_table_c2p
.data
.comm _Atari_table_c2p,2048
/* ------------ Init table C2P, 8 bits ------------ */
.globl _Atari_C2pInit8
.text
_Atari_C2pInit8:
movel d2,sp@-
lea _Atari_table_c2p,a0
movew #255,d0
c2p_initbcl:
#if defined (__M68020__)
lea a0@(0,d0:w:8),a1
#else
movew d0,d2
lslw #3,d2
lea a0@(0,d2:w),a1
#endif
moveq #7,d1
c2p_initbyte:
btst d1,d0
sne d2
negw d2
moveb d2,a1@(0,d1:w)
dbra d1,c2p_initbyte
dbra d0,c2p_initbcl
movel sp@+,d2 .globl _SDL_Atari_C2pConvert
rts .globl _SDL_Atari_C2pConvert8
.globl _SDL_Atari_C2pConvert4
.globl _SDL_Atari_C2pConvert4_pal
.globl _SDL_Atari_table_c2p
/* ------------ Conversion C2P, 8 bits ------------ */ /* ------------ Conversion C2P, 8 bits ------------ */
.globl _Atari_C2pConvert8
.text .text
_Atari_C2pConvert8: _SDL_Atari_C2pConvert8:
movel sp@(4),c2p_source movel sp@(4),c2p_source
movel sp@(8),c2p_dest movel sp@(8),c2p_dest
movel sp@(12),c2p_width movel sp@(12),c2p_width
...@@ -100,127 +54,246 @@ _Atari_C2pConvert8: ...@@ -100,127 +54,246 @@ _Atari_C2pConvert8:
moveml d2-d7/a2-a6,sp@- moveml d2-d7/a2-a6,sp@-
movel c2p_source,a0 movel c2p_source,c2p_cursrc
movel c2p_dest,a1 movel c2p_dest,c2p_curdst
lea _Atari_table_c2p,a2 movel #0x0f0f0f0f,d4
movel #0x000f0001,d3 movel #0x00ff00ff,d5
#if defined(__M68020__) movel #0x55555555,d6
moveq #0,d0 movew c2p_height+2,c2p_row
#endif movew c2p_width+2,d0
andw #-8,d0
movew d0,c2p_rowlen
movel c2p_height,d7 SDL_Atari_C2p8_rowloop:
subql #1,d7
c2p8_bcly:
movel a0,a4 | Save start address of source
movel a1,a5 | Save start address of dest
| Conversion movel c2p_cursrc,a0
movel c2p_curdst,a1
movel c2p_width,d6 movel a0,a2
lsrw #4,d6 addw c2p_rowlen,a2
subql #1,d6
c2p8_bclx:
| Octets 0-7
moveq #0,d1 movel a0@+,d0
moveq #0,d2 movel a0@+,d1
moveq #7,d5 movel a0@+,d2
c2p8_bcl07: movel a0@+,d3
#if defined(__M68020__) /*
moveb a0@+,d0 d0 = a7a6a5a4a3a2a1a0 b7b6b5b4b3b2b1b0 c7c6c5c4c3c2c1c0 d7d6d5d4d3d2d1d0
lea a2@(0,d0:w:8),a3 d1 = e7e6e5e4e3e2e1e0 f7f6f5f4f3f2f1f0 g7g6g5g4g3g2g1g0 h7h6h5h4h3h2h1h0
#else d2 = i7i6i5i4i3i2i1i0 j7j6j5j4j3j2j1j0 k7k6k5k4k3k2k1k0 l7l6l5l4l3l2l1l0
moveq #0,d0 d3 = m7m6m5m4m3m2m1m0 n7n6n5n4n3n2n1n0 o7o6o5o4o3o2o1o0 p7p6p5p4p3p2p1p0
moveb a0@+,d0 */
lslw #3,d0 movel d1,d7
lea a2@(0,d0:w),a3 lsrl #4,d7
#endif eorl d0,d7
lsll #1,d1 andl d4,d7
lsll #1,d2 eorl d7,d0
orl a3@+,d1 lsll #4,d7
orl a3@,d2 eorl d7,d1
dbra d5,c2p8_bcl07
movel d3,d7
lsrl #4,d7
eorl d2,d7
andl d4,d7
eorl d7,d2
lsll #4,d7
eorl d7,d3
movel d2,d7
lsrl #8,d7
eorl d0,d7
andl d5,d7
eorl d7,d0
lsll #8,d7
eorl d7,d2
movel d3,d7
lsrl #8,d7
eorl d1,d7
andl d5,d7
eorl d7,d1
lsll #8,d7
eorl d7,d3
/*
d0 = a7a6a5a4e7e6e5e4 i7i6i5i4m7m6m5m4 c7c6c5c4g7g6g5g4 k7k6k5k4o7o6o5o4
d1 = a3a2a1a0e3e2e1e0 i3i2i1i0m3m2m1m0 c3c2c1c0g3g2g1g0 k3k2k1k0o3o2o1o0
d2 = b7b6b5b4f7f6f5f4 j7j6j5j4n7n6n5n4 d7d6d5d4h7h6h5h4 l7l6l5l4p7p6p5p4
d3 = b3b2b1b0f3f2f1f0 j3j2j1j0n3n2n1n0 d3d2d1d0h3h2h1h0 l3l2l1l0p3p2p1p0
*/
bras SDL_Atari_C2p8_start
movepl d1,a1@(0) SDL_Atari_C2p8_pix16:
movepl d2,a1@(8)
addw d3,a1
swap d3
| Octets 8-15 movel a0@+,d0
movel a0@+,d1
movel a0@+,d2
movel a0@+,d3
/*
d0 = a7a6a5a4a3a2a1a0 b7b6b5b4b3b2b1b0 c7c6c5c4c3c2c1c0 d7d6d5d4d3d2d1d0
d1 = e7e6e5e4e3e2e1e0 f7f6f5f4f3f2f1f0 g7g6g5g4g3g2g1g0 h7h6h5h4h3h2h1h0
d2 = i7i6i5i4i3i2i1i0 j7j6j5j4j3j2j1j0 k7k6k5k4k3k2k1k0 l7l6l5l4l3l2l1l0
d3 = m7m6m5m4m3m2m1m0 n7n6n5n4n3n2n1n0 o7o6o5o4o3o2o1o0 p7p6p5p4p3p2p1p0
*/
movel d1,d7
lsrl #4,d7
movel a3,a1@+
eorl d0,d7
andl d4,d7
eorl d7,d0
lsll #4,d7
eorl d7,d1
movel d3,d7
lsrl #4,d7
eorl d2,d7
andl d4,d7
eorl d7,d2
movel a4,a1@+
lsll #4,d7
eorl d7,d3
movel d2,d7
lsrl #8,d7
eorl d0,d7
andl d5,d7
eorl d7,d0
movel a5,a1@+
lsll #8,d7
eorl d7,d2
movel d3,d7
lsrl #8,d7
eorl d1,d7
andl d5,d7
eorl d7,d1
movel a6,a1@+
lsll #8,d7
eorl d7,d3
/*
d0 = a7a6a5a4e7e6e5e4 i7i6i5i4m7m6m5m4 c7c6c5c4g7g6g5g4 k7k6k5k4o7o6o5o4
d1 = a3a2a1a0e3e2e1e0 i3i2i1i0m3m2m1m0 c3c2c1c0g3g2g1g0 k3k2k1k0o3o2o1o0
d2 = b7b6b5b4f7f6f5f4 j7j6j5j4n7n6n5n4 d7d6d5d4h7h6h5h4 l7l6l5l4p7p6p5p4
d3 = b3b2b1b0f3f2f1f0 j3j2j1j0n3n2n1n0 d3d2d1d0h3h2h1h0 l3l2l1l0p3p2p1p0
*/
moveq #0,d1 SDL_Atari_C2p8_start:
moveq #0,d2
moveq #7,d5 movel d2,d7
c2p8_bcl815: lsrl #1,d7
#if defined(__M68020__) eorl d0,d7
moveb a0@+,d0 andl d6,d7
lea a2@(0,d0:w:8),a3 eorl d7,d0
#else addl d7,d7
moveq #0,d0 eorl d7,d2
moveb a0@+,d0
lslw #3,d0 movel d3,d7
lea a2@(0,d0:w),a3 lsrl #1,d7
#endif eorl d1,d7
lsll #1,d1 andl d6,d7
lsll #1,d2 eorl d7,d1
orl a3@+,d1 addl d7,d7
orl a3@,d2 eorl d7,d3
dbra d5,c2p8_bcl815 /*
d0 = a7b7a5b5e7f7e5f5 i7j7i5j5m7n7m5n5 c7d7c5d5g7h7g5h5 k7l7k5l5o7p7o5p5
d1 = a3b3a1b1e3f3e1f1 i3j3i1j1m3n3m1n1 c3d3c1d1g3h3g1h1 k3l3k1l1o3p3o1p1
d2 = a6b6a4b4e6f6e4f4 i6j6i4j4m6n6m4n4 c6d6c4d4g6h6g4h4 k6l6k4l4o6p6o4p4
d3 = a2b2a0b0e2f2e0f0 i2j2i0j0m2n2m0n0 c2d2c0d0g2h2g0h0 k2l2k0l0o2p2o0p0
*/
movew d2,d7
movew d0,d2
swap d2
movew d2,d0
movew d7,d2
movepl d1,a1@(0) movew d3,d7
movepl d2,a1@(8) movew d1,d3
addw d3,a1 swap d3
movew d3,d1
movew d7,d3
/*
d0 = a7b7a5b5e7f7e5f5 i7j7i5j5m7n7m5n5 a6b6a4b4e6f6e4f4 i6j6i4j4m6n6m4n4
d1 = a3b3a1b1e3f3e1f1 i3j3i1j1m3n3m1n1 a2b2a0b0e2f2e0f0 i2j2i0j0m2n2m0n0
d2 = c7d7c5d5g7h7g5h5 k7l7k5l5o7p7o5p5 c6d6c4d4g6h6g4h4 k6l6k4l4o6p6o4p4
d3 = c3d3c1d1g3h3g1h1 k3l3k1l1o3p3o1p1 c2d2c0d0g2h2g0h0 k2l2k0l0o2p2o0p0
*/
movel d2,d7
lsrl #2,d7
eorl d0,d7
andl #0x33333333,d7
eorl d7,d0
lsll #2,d7
eorl d7,d2
movel d3,d7
lsrl #2,d7
eorl d1,d7
andl #0x33333333,d7
eorl d7,d1
lsll #2,d7
eorl d7,d3
/*
d0 = a7b7c7d7e7f7g7h7 i7j7k7l7m7n7o7p7 a6b6c6d6e6f6g6h6 i6j6k6l6m6n6o6p6
d1 = a3b3c3d3e3f3g3h3 i3j3k3l3m3n3o3p3 a2b2c2d2e2f2g2h2 i2j2k2l2m2n2o2p2
d2 = a5b5c5d5e5f5g5h5 i5j5k5l5m5n5o5p5 a4b4c4d4e4f4g4h4 i4j4k4l4m4n4o4p4
d3 = a1b1c1d1e1f1g1h1 i1j1k1l1m1n1o1p1 a0b0c0d0e0f0g0h0 i0j0k0l0m0n0o0p0
*/
swap d0
swap d1
swap d2
swap d3 swap d3
dbra d6,c2p8_bclx movel d0,a6
movel d2,a5
movel d1,a4
movel d3,a3
| Double line ? cmpl a0,a2
bgt SDL_Atari_C2p8_pix16
tstl c2p_dblligne movel a3,a1@+
beq c2p8_nodblligne movel a4,a1@+
movel a5,a1@+
movel a6,a1@+
movel a5,a6 | src line /* Double the line ? */
movel a5,a1 | dest line
addl c2p_dstpitch,a1
movel c2p_width,d6 movel c2p_srcpitch,d0
lsrw #2,d6 movel c2p_dstpitch,d1
subql #1,d6
c2p8_copydbl:
movel a6@+,a1@+
dbra d6,c2p8_copydbl
addl c2p_dstpitch,a5 tstl c2p_dblligne
c2p8_nodblligne: beqs SDL_Atari_C2p8_nodblline
| Next line movel c2p_curdst,a0
movel a0,a1
addl d1,a1
movel a4,a0 movew c2p_width+2,d7
addl c2p_srcpitch,a0 lsrw #4,d7
movel a5,a1 subql #1,d7
addl c2p_dstpitch,a1 SDL_Atari_C2p8_dblloop:
movel a0@+,a1@+
movel a0@+,a1@+
movel a0@+,a1@+
movel a0@+,a1@+
dbra d7,SDL_Atari_C2p8_dblloop
dbra d7,c2p8_bcly addl d1,c2p_curdst
moveml sp@+,d2-d7/a2-a6 SDL_Atari_C2p8_nodblline:
rts
/* ------------ Init table C2P, 4 bits ------------ */ /* Next line */
.globl _Atari_C2pInit4 addl d0,c2p_cursrc
addl d1,c2p_curdst
.text subqw #1,c2p_row
_Atari_C2pInit4: bne SDL_Atari_C2p8_rowloop
/* Nothing to do */
/* work is done in convert_c2p_pal */ moveml sp@+,d2-d7/a2-a6
rts rts
/* ------------ Conversion C2P, 4 bits ------------ */ /* ------------ Conversion C2P, 4 bits ------------ */
.globl _Atari_C2pConvert4 _SDL_Atari_C2pConvert4:
.text
_Atari_C2pConvert4:
movel sp@(4),c2p_source movel sp@(4),c2p_source
movel sp@(8),c2p_dest movel sp@(8),c2p_dest
movel sp@(12),c2p_width movel sp@(12),c2p_width
...@@ -233,7 +306,7 @@ _Atari_C2pConvert4: ...@@ -233,7 +306,7 @@ _Atari_C2pConvert4:
movel c2p_source,a0 movel c2p_source,a0
movel c2p_dest,a1 movel c2p_dest,a1
lea _Atari_table_c2p,a2 lea _SDL_Atari_table_c2p,a2
movel #0x00070001,d3 movel #0x00070001,d3
#if defined(__M68020__) #if defined(__M68020__)
moveq #0,d0 moveq #0,d0
...@@ -328,18 +401,15 @@ c2p4_nodblligne: ...@@ -328,18 +401,15 @@ c2p4_nodblligne:
moveml sp@+,d2-d7/a2-a6 moveml sp@+,d2-d7/a2-a6
rts rts
* ------------ Conversion of a light palette in 4 bits ------------ */ /* ------------ Conversion of a light palette in 4 bits ------------ */
.globl _Atari_C2pConvert4_pal _SDL_Atari_C2pConvert4_pal:
.text
_Atari_C2pConvert4_pal:
/* a0 is a 256-word light palette */ /* a0 is a 256-word light palette */
movel sp@(4),a0 movel sp@(4),a0
moveml d2-d3,sp@- moveml d2-d3,sp@-
lea _Atari_table_c2p,a1 lea _SDL_Atari_table_c2p,a1
movew #255,d3 movew #255,d3
c2p_pal_initbcl: c2p_pal_initbcl:
movew a0@+,d0 movew a0@+,d0
...@@ -367,11 +437,17 @@ c2p_pal_initbyte: ...@@ -367,11 +437,17 @@ c2p_pal_initbyte:
.data .data
.even .even
.comm c2p_source,4 .comm _SDL_Atari_C2pConvert,4
.comm c2p_dest,4 .comm _SDL_Atari_table_c2p,2048
.comm c2p_width,4
.comm c2p_height,4 .comm c2p_source,4 /* Source framebuffer */
.comm c2p_dblligne,4 .comm c2p_dest,4 /* Destination framebuffer */
.comm c2p_srcpitch,4 .comm c2p_width,4 /* Width of zone to convert */
.comm c2p_dstpitch,4 .comm c2p_height,4 /* Height of zone to convert */
.comm c2p_dblligne,4 /* Double the lines while converting ? */
.comm c2p_srcpitch,4 /* Source pitch */
.comm c2p_dstpitch,4 /* Destination pitch */
.comm c2p_cursrc,4 /* Current source line */
.comm c2p_curdst,4 /* Current destination line */
.comm c2p_rowlen,2 /* Line length in bytes */
.comm c2p_row,2 /* Current line number */
src/video/ataricommon/SDL_ataric2p060.c deleted 100644 → 0
View file @ 4c968411
/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Sam Lantinga
slouken@libsdl.org
*/
#ifdef SAVE_RCSID
static char rcsid =
"@(#) $Id$";
#endif
/*
* Chunky to planar conversion routine
* for 68060 CPU, without movep instruction
* 1 byte/pixel -> 4 or 8 bit planes
*
* Patrice Mandin
*/
#include <string.h>
#include <mint/cookie.h>
#include "SDL_ataric2p_s.h"
/*--- Variables ---*/
/* CPU is 060 ? */
int atari_cpu060_avail;
/*--- Functions ---*/
void atari_test_cpu060_present(void)
{
unsigned long cookie_cpu;
atari_cpu060_avail=0;
/* Cookie _CPU present ? */
if (Getcookie(C__CPU, &cookie_cpu) == C_FOUND) {
atari_cpu060_avail = (cookie_cpu == 60);
}
}
void Atari_C2pConvert8_060(
Uint8 *src, /* Source screen (one byte=one pixel) */
Uint8 *dest, /* Destination (8 bits planes) */
Uint32 width, /* Dimensions of screen to convert */
Uint32 height,
Uint32 dblligne, /* Double the lines when converting ? */
Uint32 srcpitch, /* Length of one source line in bytes */
Uint32 dstpitch /* Length of one destination line in bytes */
)
{
int x,y,z;
Uint8 *src_line, *dst_line;
for (y=0; y<height; y++) {
src_line = src;
dst_line = dest;
for (x=0; x<(width>>4); x++) {
Uint32 somme1, somme2;
Uint32 *convtable;
/* bytes 0-7 */
somme1 = somme2 = 0;
for (z=0; z<8 ;z++) {
convtable = (Uint32 *) &Atari_table_c2p[(*src_line++)<<3];
somme1 <<= 1;
somme2 <<= 1;
somme1 |= *convtable++;
somme2 |= *convtable;
}
*(dst_line+14) = somme2; /* 000000FF */
*(dst_line+6) = somme1; /* 000000FF */
somme2 >>= 8;
somme1 >>= 8;
*(dst_line+12) = somme2; /* 0000FF00 */
*(dst_line+4) = somme1; /* 0000FF00 */
somme2 >>= 8;
somme1 >>= 8;
*(dst_line+10) = somme2; /* 00FF0000 */
*(dst_line+2) = somme1; /* 00FF0000 */
somme2 >>= 8;
somme1 >>= 8;
*(dst_line+8) = somme2; /* FF000000 */
*dst_line++ = somme1; /* FF000000 */
/* bytes 8-15 */
somme1 = somme2 = 0;
for (z=0; z<8 ;z++) {
convtable = (Uint32 *) &Atari_table_c2p[(*src_line++)<<3];
somme1 <<= 1;
somme2 <<= 1;
somme1 |= *convtable++;
somme2 |= *convtable;
}
*(dst_line+14) = somme2; /* 000000FF */
*(dst_line+6) = somme1; /* 000000FF */
somme2 >>= 8;
somme1 >>= 8;
*(dst_line+12) = somme2; /* 0000FF00 */
*(dst_line+4) = somme1; /* 0000FF00 */
somme2 >>= 8;
somme1 >>= 8;
*(dst_line+10) = somme2; /* 00FF0000 */
*(dst_line+2) = somme1; /* 00FF0000 */
somme2 >>= 8;
somme1 >>= 8;
*(dst_line+8) = somme2; /* FF000000 */
*dst_line = somme1; /* FF000000 */
dst_line += 15;
}
if (dblligne) {
memcpy(dest+dstpitch, dest, width);
dest += dstpitch;
}
src += srcpitch;
dest += dstpitch;
}
}
void Atari_C2pConvert4_060(
Uint8 *src, /* Source screen (one byte=one pixel) */
Uint8 *dest, /* Destination (4 bits planes) */
Uint32 width, /* Dimensions of screen to convert */
Uint32 height,
Uint32 dblligne, /* Double the lines when converting ? */
Uint32 srcpitch, /* Length of one source line in bytes */
Uint32 dstpitch /* Length of one destination line in bytes */
)
{
int x,y,z;
Uint8 *src_line, *dst_line;
for (y=0;y<height;y++) {
src_line = src;
dst_line = dest;
for (x=0; x<(width>>4);x++) {
Uint32 somme;
Uint32 *convtable;
/* bytes 0-7 */
somme=0;
for (z=0; z<8 ; z++) {
convtable = (Uint32 *) &Atari_table_c2p[(*src_line++)<<2];
somme <<= 1;
somme |= *convtable;
}
*(dst_line+6) = somme; somme >>= 8; /* 000000FF */
*(dst_line+4) = somme; somme >>= 8; /* 0000FF00 */
*(dst_line+2) = somme; somme >>= 8; /* 00FF0000 */
*dst_line++ = somme; /* FF000000 */
/* bytes 8-15 */
somme = 0;
for (z=0; z<8 ;z++) {
convtable = (Uint32 *) &Atari_table_c2p[(*src_line++)<<2];
somme <<= 1;
somme |= *convtable;
}
*(dst_line+6) = somme; somme >>= 8; /* 000000FF */
*(dst_line+4) = somme; somme >>= 8; /* 0000FF00 */
*(dst_line+2) = somme; somme >>= 8; /* 00FF0000 */
*dst_line = somme; /* FF000000 */
dst_line += 7;
}
if (dblligne) {
memcpy(dest+dstpitch, dest, width>>1);
dest += dstpitch;
}
src += srcpitch;
dest += dstpitch;
}
}
src/video/ataricommon/SDL_ataric2p060_c.h deleted 100644 → 0
View file @ 4c968411
/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Sam Lantinga
slouken@libsdl.org
*/
#ifdef SAVE_RCSID
static char rcsid =
"@(#) $Id$";
#endif
/*
* Chunky to planar conversion routine
* for 68060 CPU, without movep instruction
* 1 byte/pixel -> 4 or 8 bit planes
*
* Patrice Mandin
*/
#ifndef _SDL_ATARI_C2P060_H_
#define _SDL_ATARI_C2P060_H_
/*--- Variables ---*/
extern int atari_cpu060_avail;
/*--- Functions ---*/
extern void atari_test_cpu060_present(void);
extern void Atari_C2pConvert8_060(
Uint8 *src, /* Source screen (one byte=one pixel) */
Uint8 *dest, /* Destination (8 bits planes) */
Uint32 width, /* Dimensions of screen to convert */
Uint32 height,
Uint32 dblligne, /* Double the lines when converting ? */
Uint32 srcpitch, /* Length of one source line in bytes */
Uint32 dstpitch /* Length of one destination line in bytes */
);
extern void Atari_C2pConvert4_060(
Uint8 *src, /* Source screen (one byte=one pixel) */
Uint8 *dest, /* Destination (4 bits planes) */
Uint32 width, /* Dimensions of screen to convert */
Uint32 height,
Uint32 dblligne, /* Double the lines when converting ? */
Uint32 srcpitch, /* Length of one source line in bytes */
Uint32 dstpitch /* Length of one destination line in bytes */
);
#endif /* _SDL_ATARI_C2P060_H_ */
src/video/ataricommon/SDL_ataric2p_s.h
View file @ f31a195b
...@@ -32,17 +32,13 @@ static char rcsid = ...@@ -32,17 +32,13 @@ static char rcsid =
/*--- Variables ---*/ /*--- Variables ---*/
extern Uint8 Atari_table_c2p[2048]; /* Used by conversions routines */ extern Uint8 SDL_Atari_table_c2p[2048]; /* Used by conversions routines */
/*--- Functions pointers ---*/ /*--- Functions pointers ---*/
/* Initialize conversion table */
extern void (*Atari_C2pInit)(void);
/* Convert a chunky screen to bitplane screen */ /* Convert a chunky screen to bitplane screen */
extern void (*Atari_C2pConvert)( extern void (*SDL_Atari_C2pConvert)(
Uint8 *src, /* Source screen (one byte=one pixel) */ Uint8 *src, /* Source screen (one byte=one pixel) */
Uint8 *dest, /* Destination (4/8 bits planes) */ Uint8 *dest, /* Destination (4/8 bits planes) */
Uint32 width, /* Dimensions of screen to convert */ Uint32 width, /* Dimensions of screen to convert */
...@@ -54,13 +50,9 @@ extern void (*Atari_C2pConvert)( ...@@ -54,13 +50,9 @@ extern void (*Atari_C2pConvert)(
/*--- 8 bits functions ---*/ /*--- 8 bits functions ---*/
/* Initialize conversion table */
void Atari_C2pInit8(void);
/* Convert a chunky screen to bitplane screen */ /* Convert a chunky screen to bitplane screen */
void Atari_C2pConvert8( void SDL_Atari_C2pConvert8(
Uint8 *src, /* Source screen (one byte=one pixel) */ Uint8 *src, /* Source screen (one byte=one pixel) */
Uint8 *dest, /* Destination (8 bits planes) */ Uint8 *dest, /* Destination (8 bits planes) */
Uint32 width, /* Dimensions of screen to convert */ Uint32 width, /* Dimensions of screen to convert */
...@@ -72,13 +64,9 @@ void Atari_C2pConvert8( ...@@ -72,13 +64,9 @@ void Atari_C2pConvert8(
/*--- 4 bits functions ---*/ /*--- 4 bits functions ---*/
/* Initialize conversion table */
void Atari_C2pInit4(void);
/* Convert a chunky screen to bitplane screen */ /* Convert a chunky screen to bitplane screen */
void Atari_C2pConvert4( void SDL_Atari_C2pConvert4(
Uint8 *src, /* Source screen (one byte=one pixel) */ Uint8 *src, /* Source screen (one byte=one pixel) */
Uint8 *dest, /* Destination (4 bits planes) */ Uint8 *dest, /* Destination (4 bits planes) */
Uint32 width, /* Dimensions of screen to convert */ Uint32 width, /* Dimensions of screen to convert */
...@@ -90,6 +78,6 @@ void Atari_C2pConvert4( ...@@ -90,6 +78,6 @@ void Atari_C2pConvert4(
/* Conversion palette */ /* Conversion palette */
void Atari_C2pConvert4_pal(Uint16 *lightpalette); void SDL_Atari_C2pConvert4_pal(Uint16 *lightpalette);
#endif /* _ATARI_C2P_h */ #endif /* _ATARI_C2P_h */
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment