diff options
Diffstat (limited to 'graftest')
| -rw-r--r-- | graftest/Makefile | 12 | ||||
| -rw-r--r-- | graftest/colortable.c | 333 | ||||
| -rw-r--r-- | graftest/colortable.h | 1 | ||||
| -rw-r--r-- | graftest/graftest.c | 415 |
4 files changed, 414 insertions, 347 deletions
diff --git a/graftest/Makefile b/graftest/Makefile index e16ae6d..42d14aa 100644 --- a/graftest/Makefile +++ b/graftest/Makefile @@ -1,11 +1,15 @@ -HOSTCC=gcc +# compiler used to build graftest. theoretically this could +# be a cross-compiler. CC=gcc - CFLAGS=-Wall -O2 + +# compiler used to build blob2c. this needs to be the native +# compiler even if CC is cross. +HOSTCC=gcc HOSTCFLAGS=-Wall -O2 -all: rom.c - gcc -O2 -Wall -o graftest graftest.c rom.c `pkg-config sdl2 --cflags --libs` +all: rom.o colortable.o + gcc -O2 -Wall -o graftest graftest.c rom.o colortable.o `pkg-config sdl2 --cflags --libs` rom.c: blob2c jumpmanjr.rom ./blob2c jumpmanjr.rom > rom.c 2> rom.h diff --git a/graftest/colortable.c b/graftest/colortable.c new file mode 100644 index 0000000..cd506ee --- /dev/null +++ b/graftest/colortable.c @@ -0,0 +1,333 @@ +/* this table taken from the atari++ 1.80 source (and modified), + atari++/gtia.cpp */ +int colortable[256] = { + 0x000000, + 0x363636, + 0x515151, + 0x666666, + 0x787878, + 0x888888, + 0x979797, + 0xa5a5a5, + 0xb2b2b2, + 0xbebebe, + 0xcacaca, + 0xd5d5d5, + 0xe0e0e0, + 0xebebeb, + 0xf5f5f5, + 0xffffff, + 0x6a2b00, + 0x7c4900, + 0x8c5f00, + 0x9b7200, + 0xa88300, + 0xb59221, + 0xc1a043, + 0xcdae5a, + 0xd8ba6e, + 0xe3c67f, + 0xedd28f, + 0xf7dc9d, + 0xffe7ab, + 0xfff1b7, + 0xfffbc3, + 0xffffcf, + 0x7f0000, + 0x8e2900, + 0x9d4700, + 0xaa5e00, + 0xb7711e, + 0xc38241, + 0xcf9159, + 0xdaa06d, + 0xe4ad7e, + 0xefba8e, + 0xf9c69c, + 0xffd1aa, + 0xffdcb6, + 0xffe7c3, + 0xfff1ce, + 0xfffbd9, + 0x830000, + 0x920000, + 0xa12a06, + 0xae4837, + 0xba5f51, + 0xc67266, + 0xd28378, + 0xdd9288, + 0xe7a097, + 0xf2ada5, + 0xfbbab2, + 0xffc6bf, + 0xffd1ca, + 0xffdcd6, + 0xffe7e0, + 0xfff1eb, + 0x79000c, + 0x890038, + 0x980052, + 0xa53567, + 0xb24f79, + 0xbf6589, + 0xca7798, + 0xd687a6, + 0xe196b3, + 0xeba4bf, + 0xf5b1cb, + 0xffbed6, + 0xffc9e1, + 0xffd5eb, + 0xffe0f5, + 0xffeaff, + 0x5e0053, + 0x710068, + 0x82007a, + 0x912a8a, + 0x9f4899, + 0xad5fa6, + 0xb972b3, + 0xc583c0, + 0xd192cb, + 0xdca0d6, + 0xe6ade1, + 0xf1baec, + 0xfbc6f6, + 0xffd1ff, + 0xffdcff, + 0xffe7ff, + 0x2a0073, + 0x480084, + 0x5e0093, + 0x7130a1, + 0x824cae, + 0x9262bb, + 0xa075c7, + 0xad85d2, + 0xba94dd, + 0xc6a2e8, + 0xd1b0f2, + 0xdcbcfc, + 0xe7c8ff, + 0xf1d3ff, + 0xfbdeff, + 0xffe9ff, + 0x000082, + 0x000091, + 0x26219f, + 0x4642ad, + 0x5d5ab9, + 0x706ec5, + 0x817fd1, + 0x908fdc, + 0x9f9de6, + 0xacabf1, + 0xb9b7fb, + 0xc5c3ff, + 0xd0cfff, + 0xdbdaff, + 0xe6e5ff, + 0xf0efff, + 0x000081, + 0x001d91, + 0x00409f, + 0x0058ac, + 0x2e6cb9, + 0x4b7ec5, + 0x618dd1, + 0x739cdc, + 0x84a9e6, + 0x93b6f0, + 0xa1c2fa, + 0xafceff, + 0xbbd9ff, + 0xc7e4ff, + 0xd3eeff, + 0xddf8ff, + 0x001f71, + 0x004182, + 0x005992, + 0x006da0, + 0x007ead, + 0x288eba, + 0x479cc6, + 0x5eaad1, + 0x71b7dc, + 0x82c3e7, + 0x91cef1, + 0x9fdafb, + 0xade4ff, + 0xb9efff, + 0xc5f9ff, + 0xd1ffff, + 0x004150, + 0x005965, + 0x006c77, + 0x007e88, + 0x008e97, + 0x1c9ca5, + 0x3faab2, + 0x58b6be, + 0x6cc2ca, + 0x7dced5, + 0x8dd9e0, + 0x9be4ea, + 0xa9eef4, + 0xb6f8fe, + 0xc2ffff, + 0xceffff, + 0x005200, + 0x006734, + 0x00794f, + 0x008964, + 0x009877, + 0x35a687, + 0x50b396, + 0x65bfa4, + 0x77cbb1, + 0x87d6bd, + 0x96e1c9, + 0xa4ebd5, + 0xb1f5df, + 0xbeffea, + 0xcafff4, + 0xd5fffe, + 0x005800, + 0x006c00, + 0x007e00, + 0x208d33, + 0x429c4e, + 0x5aaa64, + 0x6db676, + 0x7fc286, + 0x8ece95, + 0x9dd9a3, + 0xaae4b1, + 0xb7eebd, + 0xc3f8c9, + 0xcfffd4, + 0xdaffdf, + 0xe4ffea, + 0x005500, + 0x1f6900, + 0x417b00, + 0x598b00, + 0x6d9a1a, + 0x7ea73e, + 0x8eb457, + 0x9cc06b, + 0xaacc7d, + 0xb7d78c, + 0xc3e29b, + 0xceeca9, + 0xd9f6b5, + 0xe4ffc2, + 0xeeffcd, + 0xf8ffd8, + 0x434600, + 0x5b5d00, + 0x6e7000, + 0x7f8100, + 0x8f9100, + 0x9d9f20, + 0xabac42, + 0xb8b959, + 0xc4c56d, + 0xcfd17e, + 0xdadc8e, + 0xe5e69d, + 0xeff0aa, + 0xf9fab7, + 0xffffc3, + 0xffffcf, + 0x6a2b00, + 0x7c4900, + 0x8c5f00, + 0x9b7200, + 0xa88300, + 0xb59221, + 0xc1a043, + 0xcdae5a, + 0xd8ba6e, + 0xe3c67f, + 0xedd28f, + 0xf7dc9d, + 0xffe7ab, + 0xfff1b7, + 0xfffbc3, + 0xffffcf +}; + +/* this table taken from the atari800 source, + atari800-2.0.3/src/colours.c */ +/* +int colortable[256] = { + 0x2d2d2d, 0x3b3b3b, 0x494949, 0x575757, + 0x656565, 0x737373, 0x818181, 0x8f8f8f, + 0x9d9d9d, 0xababab, 0xb9b9b9, 0xc7c7c7, + 0xd5d5d5, 0xe3e3e3, 0xf1f1f1, 0xffffff, + 0x5c2300, 0x6a3100, 0x783f00, 0x864d0a, + 0x945b18, 0xa26926, 0xb07734, 0xbe8542, + 0xcc9350, 0xdaa15e, 0xe8af6c, 0xf6bd7a, + 0xffcb88, 0xffd996, 0xffe7a4, 0xfff5b2, + 0x691409, 0x772217, 0x853025, 0x933e33, + 0xa14c41, 0xaf5a4f, 0xbd685d, 0xcb766b, + 0xd98479, 0xe79287, 0xf5a095, 0xffaea3, + 0xffbcb1, 0xffcabf, 0xffd8cd, 0xffe6db, + 0x6c0a38, 0x7a1846, 0x882654, 0x963462, + 0xa44270, 0xb2507e, 0xc05e8c, 0xce6c9a, + 0xdc7aa8, 0xea88b6, 0xf896c4, 0xffa4d2, + 0xffb2e0, 0xffc0ee, 0xffcefc, 0xffdcff, + 0x640565, 0x721373, 0x802181, 0x8e2f8f, + 0x9c3d9d, 0xaa4bab, 0xb859b9, 0xc667c7, + 0xd475d5, 0xe283e3, 0xf091f1, 0xfe9fff, + 0xffadff, 0xffbbff, 0xffc9ff, 0xffd7ff, + 0x520789, 0x601597, 0x6e23a5, 0x7c31b3, + 0x8a3fc1, 0x984dcf, 0xa65bdd, 0xb469eb, + 0xc277f9, 0xd085ff, 0xde93ff, 0xeca1ff, + 0xfaafff, 0xffbdff, 0xffcbff, 0xffd9ff, + 0x3a109c, 0x481eaa, 0x562cb8, 0x643ac6, + 0x7248d4, 0x8056e2, 0x8e64f0, 0x9c72fe, + 0xaa80ff, 0xb88eff, 0xc69cff, 0xd4aaff, + 0xe2b8ff, 0xf0c6ff, 0xfed4ff, 0xffe2ff, + 0x1f1e9c, 0x2d2caa, 0x3b3ab8, 0x4948c6, + 0x5756d4, 0x6564e2, 0x7372f0, 0x8180fe, + 0x8f8eff, 0x9d9cff, 0xabaaff, 0xb9b8ff, + 0xc7c6ff, 0xd5d4ff, 0xe3e2ff, 0xf1f0ff, + 0x072e89, 0x153c97, 0x234aa5, 0x3158b3, + 0x3f66c1, 0x4d74cf, 0x5b82dd, 0x6990eb, + 0x779ef9, 0x85acff, 0x93baff, 0xa1c8ff, + 0xafd6ff, 0xbde4ff, 0xcbf2ff, 0xd9ffff, + 0x003e65, 0x034c73, 0x115a81, 0x1f688f, + 0x2d769d, 0x3b84ab, 0x4992b9, 0x57a0c7, + 0x65aed5, 0x73bce3, 0x81caf1, 0x8fd8ff, + 0x9de6ff, 0xabf4ff, 0xb9ffff, 0xc7ffff, + 0x004b38, 0x005946, 0x096754, 0x177562, + 0x258370, 0x33917e, 0x419f8c, 0x4fad9a, + 0x5dbba8, 0x6bc9b6, 0x79d7c4, 0x87e5d2, + 0x95f3e0, 0xa3ffee, 0xb1fffc, 0xbfffff, + 0x005209, 0x006017, 0x0c6e25, 0x1a7c33, + 0x288a41, 0x36984f, 0x44a65d, 0x52b46b, + 0x60c279, 0x6ed087, 0x7cde95, 0x8aeca3, + 0x98fab1, 0xa6ffbf, 0xb4ffcd, 0xc2ffdb, + 0x005300, 0x0b6100, 0x196f00, 0x277d0a, + 0x358b18, 0x439926, 0x51a734, 0x5fb542, + 0x6dc350, 0x7bd15e, 0x89df6c, 0x97ed7a, + 0xa5fb88, 0xb3ff96, 0xc1ffa4, 0xcfffb2, + 0x134e00, 0x215c00, 0x2f6a00, 0x3d7800, + 0x4b8600, 0x59940b, 0x67a219, 0x75b027, + 0x83be35, 0x91cc43, 0x9fda51, 0xade85f, + 0xbbf66d, 0xc9ff7b, 0xd7ff89, 0xe5ff97, + 0x2d4300, 0x3b5100, 0x495f00, 0x576d00, + 0x657b00, 0x738901, 0x81970f, 0x8fa51d, + 0x9db32b, 0xabc139, 0xb9cf47, 0xc7dd55, + 0xd5eb63, 0xe3f971, 0xf1ff7f, 0xffff8d, + 0x463300, 0x544100, 0x624f00, 0x705d00, + 0x7e6b00, 0x8c790b, 0x9a8719, 0xa89527, + 0xb6a335, 0xc4b143, 0xd2bf51, 0xe0cd5f, + 0xeedb6d, 0xfce97b, 0xfff789, 0xffff97 +}; +*/ + + diff --git a/graftest/colortable.h b/graftest/colortable.h new file mode 100644 index 0000000..fa2f531 --- /dev/null +++ b/graftest/colortable.h @@ -0,0 +1 @@ +extern int colortable[256]; diff --git a/graftest/graftest.c b/graftest/graftest.c index 64d2565..b983aca 100644 --- a/graftest/graftest.c +++ b/graftest/graftest.c @@ -1,372 +1,66 @@ #include "SDL.h" -/* rom.h and rom.c are generated from jumpmanjr.rom */ -#include "rom.h" +/* atari GTIA palette, currently only for NTSC */ +#include "colortable.h" -/* this table taken from the atari++ 1.80 source (and modified), - atari++/gtia.cpp */ -int colortable[256] = { - 0x000000, - 0x363636, - 0x515151, - 0x666666, - 0x787878, - 0x888888, - 0x979797, - 0xa5a5a5, - 0xb2b2b2, - 0xbebebe, - 0xcacaca, - 0xd5d5d5, - 0xe0e0e0, - 0xebebeb, - 0xf5f5f5, - 0xffffff, - 0x6a2b00, - 0x7c4900, - 0x8c5f00, - 0x9b7200, - 0xa88300, - 0xb59221, - 0xc1a043, - 0xcdae5a, - 0xd8ba6e, - 0xe3c67f, - 0xedd28f, - 0xf7dc9d, - 0xffe7ab, - 0xfff1b7, - 0xfffbc3, - 0xffffcf, - 0x7f0000, - 0x8e2900, - 0x9d4700, - 0xaa5e00, - 0xb7711e, - 0xc38241, - 0xcf9159, - 0xdaa06d, - 0xe4ad7e, - 0xefba8e, - 0xf9c69c, - 0xffd1aa, - 0xffdcb6, - 0xffe7c3, - 0xfff1ce, - 0xfffbd9, - 0x830000, - 0x920000, - 0xa12a06, - 0xae4837, - 0xba5f51, - 0xc67266, - 0xd28378, - 0xdd9288, - 0xe7a097, - 0xf2ada5, - 0xfbbab2, - 0xffc6bf, - 0xffd1ca, - 0xffdcd6, - 0xffe7e0, - 0xfff1eb, - 0x79000c, - 0x890038, - 0x980052, - 0xa53567, - 0xb24f79, - 0xbf6589, - 0xca7798, - 0xd687a6, - 0xe196b3, - 0xeba4bf, - 0xf5b1cb, - 0xffbed6, - 0xffc9e1, - 0xffd5eb, - 0xffe0f5, - 0xffeaff, - 0x5e0053, - 0x710068, - 0x82007a, - 0x912a8a, - 0x9f4899, - 0xad5fa6, - 0xb972b3, - 0xc583c0, - 0xd192cb, - 0xdca0d6, - 0xe6ade1, - 0xf1baec, - 0xfbc6f6, - 0xffd1ff, - 0xffdcff, - 0xffe7ff, - 0x2a0073, - 0x480084, - 0x5e0093, - 0x7130a1, - 0x824cae, - 0x9262bb, - 0xa075c7, - 0xad85d2, - 0xba94dd, - 0xc6a2e8, - 0xd1b0f2, - 0xdcbcfc, - 0xe7c8ff, - 0xf1d3ff, - 0xfbdeff, - 0xffe9ff, - 0x000082, - 0x000091, - 0x26219f, - 0x4642ad, - 0x5d5ab9, - 0x706ec5, - 0x817fd1, - 0x908fdc, - 0x9f9de6, - 0xacabf1, - 0xb9b7fb, - 0xc5c3ff, - 0xd0cfff, - 0xdbdaff, - 0xe6e5ff, - 0xf0efff, - 0x000081, - 0x001d91, - 0x00409f, - 0x0058ac, - 0x2e6cb9, - 0x4b7ec5, - 0x618dd1, - 0x739cdc, - 0x84a9e6, - 0x93b6f0, - 0xa1c2fa, - 0xafceff, - 0xbbd9ff, - 0xc7e4ff, - 0xd3eeff, - 0xddf8ff, - 0x001f71, - 0x004182, - 0x005992, - 0x006da0, - 0x007ead, - 0x288eba, - 0x479cc6, - 0x5eaad1, - 0x71b7dc, - 0x82c3e7, - 0x91cef1, - 0x9fdafb, - 0xade4ff, - 0xb9efff, - 0xc5f9ff, - 0xd1ffff, - 0x004150, - 0x005965, - 0x006c77, - 0x007e88, - 0x008e97, - 0x1c9ca5, - 0x3faab2, - 0x58b6be, - 0x6cc2ca, - 0x7dced5, - 0x8dd9e0, - 0x9be4ea, - 0xa9eef4, - 0xb6f8fe, - 0xc2ffff, - 0xceffff, - 0x005200, - 0x006734, - 0x00794f, - 0x008964, - 0x009877, - 0x35a687, - 0x50b396, - 0x65bfa4, - 0x77cbb1, - 0x87d6bd, - 0x96e1c9, - 0xa4ebd5, - 0xb1f5df, - 0xbeffea, - 0xcafff4, - 0xd5fffe, - 0x005800, - 0x006c00, - 0x007e00, - 0x208d33, - 0x429c4e, - 0x5aaa64, - 0x6db676, - 0x7fc286, - 0x8ece95, - 0x9dd9a3, - 0xaae4b1, - 0xb7eebd, - 0xc3f8c9, - 0xcfffd4, - 0xdaffdf, - 0xe4ffea, - 0x005500, - 0x1f6900, - 0x417b00, - 0x598b00, - 0x6d9a1a, - 0x7ea73e, - 0x8eb457, - 0x9cc06b, - 0xaacc7d, - 0xb7d78c, - 0xc3e29b, - 0xceeca9, - 0xd9f6b5, - 0xe4ffc2, - 0xeeffcd, - 0xf8ffd8, - 0x434600, - 0x5b5d00, - 0x6e7000, - 0x7f8100, - 0x8f9100, - 0x9d9f20, - 0xabac42, - 0xb8b959, - 0xc4c56d, - 0xcfd17e, - 0xdadc8e, - 0xe5e69d, - 0xeff0aa, - 0xf9fab7, - 0xffffc3, - 0xffffcf, - 0x6a2b00, - 0x7c4900, - 0x8c5f00, - 0x9b7200, - 0xa88300, - 0xb59221, - 0xc1a043, - 0xcdae5a, - 0xd8ba6e, - 0xe3c67f, - 0xedd28f, - 0xf7dc9d, - 0xffe7ab, - 0xfff1b7, - 0xfffbc3, - 0xffffcf -}; - -/* this table taken from the atari800 source, - atari800-2.0.3/src/colours.c */ -/* -int colortable[256] = { - 0x2d2d2d, 0x3b3b3b, 0x494949, 0x575757, - 0x656565, 0x737373, 0x818181, 0x8f8f8f, - 0x9d9d9d, 0xababab, 0xb9b9b9, 0xc7c7c7, - 0xd5d5d5, 0xe3e3e3, 0xf1f1f1, 0xffffff, - 0x5c2300, 0x6a3100, 0x783f00, 0x864d0a, - 0x945b18, 0xa26926, 0xb07734, 0xbe8542, - 0xcc9350, 0xdaa15e, 0xe8af6c, 0xf6bd7a, - 0xffcb88, 0xffd996, 0xffe7a4, 0xfff5b2, - 0x691409, 0x772217, 0x853025, 0x933e33, - 0xa14c41, 0xaf5a4f, 0xbd685d, 0xcb766b, - 0xd98479, 0xe79287, 0xf5a095, 0xffaea3, - 0xffbcb1, 0xffcabf, 0xffd8cd, 0xffe6db, - 0x6c0a38, 0x7a1846, 0x882654, 0x963462, - 0xa44270, 0xb2507e, 0xc05e8c, 0xce6c9a, - 0xdc7aa8, 0xea88b6, 0xf896c4, 0xffa4d2, - 0xffb2e0, 0xffc0ee, 0xffcefc, 0xffdcff, - 0x640565, 0x721373, 0x802181, 0x8e2f8f, - 0x9c3d9d, 0xaa4bab, 0xb859b9, 0xc667c7, - 0xd475d5, 0xe283e3, 0xf091f1, 0xfe9fff, - 0xffadff, 0xffbbff, 0xffc9ff, 0xffd7ff, - 0x520789, 0x601597, 0x6e23a5, 0x7c31b3, - 0x8a3fc1, 0x984dcf, 0xa65bdd, 0xb469eb, - 0xc277f9, 0xd085ff, 0xde93ff, 0xeca1ff, - 0xfaafff, 0xffbdff, 0xffcbff, 0xffd9ff, - 0x3a109c, 0x481eaa, 0x562cb8, 0x643ac6, - 0x7248d4, 0x8056e2, 0x8e64f0, 0x9c72fe, - 0xaa80ff, 0xb88eff, 0xc69cff, 0xd4aaff, - 0xe2b8ff, 0xf0c6ff, 0xfed4ff, 0xffe2ff, - 0x1f1e9c, 0x2d2caa, 0x3b3ab8, 0x4948c6, - 0x5756d4, 0x6564e2, 0x7372f0, 0x8180fe, - 0x8f8eff, 0x9d9cff, 0xabaaff, 0xb9b8ff, - 0xc7c6ff, 0xd5d4ff, 0xe3e2ff, 0xf1f0ff, - 0x072e89, 0x153c97, 0x234aa5, 0x3158b3, - 0x3f66c1, 0x4d74cf, 0x5b82dd, 0x6990eb, - 0x779ef9, 0x85acff, 0x93baff, 0xa1c8ff, - 0xafd6ff, 0xbde4ff, 0xcbf2ff, 0xd9ffff, - 0x003e65, 0x034c73, 0x115a81, 0x1f688f, - 0x2d769d, 0x3b84ab, 0x4992b9, 0x57a0c7, - 0x65aed5, 0x73bce3, 0x81caf1, 0x8fd8ff, - 0x9de6ff, 0xabf4ff, 0xb9ffff, 0xc7ffff, - 0x004b38, 0x005946, 0x096754, 0x177562, - 0x258370, 0x33917e, 0x419f8c, 0x4fad9a, - 0x5dbba8, 0x6bc9b6, 0x79d7c4, 0x87e5d2, - 0x95f3e0, 0xa3ffee, 0xb1fffc, 0xbfffff, - 0x005209, 0x006017, 0x0c6e25, 0x1a7c33, - 0x288a41, 0x36984f, 0x44a65d, 0x52b46b, - 0x60c279, 0x6ed087, 0x7cde95, 0x8aeca3, - 0x98fab1, 0xa6ffbf, 0xb4ffcd, 0xc2ffdb, - 0x005300, 0x0b6100, 0x196f00, 0x277d0a, - 0x358b18, 0x439926, 0x51a734, 0x5fb542, - 0x6dc350, 0x7bd15e, 0x89df6c, 0x97ed7a, - 0xa5fb88, 0xb3ff96, 0xc1ffa4, 0xcfffb2, - 0x134e00, 0x215c00, 0x2f6a00, 0x3d7800, - 0x4b8600, 0x59940b, 0x67a219, 0x75b027, - 0x83be35, 0x91cc43, 0x9fda51, 0xade85f, - 0xbbf66d, 0xc9ff7b, 0xd7ff89, 0xe5ff97, - 0x2d4300, 0x3b5100, 0x495f00, 0x576d00, - 0x657b00, 0x738901, 0x81970f, 0x8fa51d, - 0x9db32b, 0xabc139, 0xb9cf47, 0xc7dd55, - 0xd5eb63, 0xe3f971, 0xf1ff7f, 0xffff8d, - 0x463300, 0x544100, 0x624f00, 0x705d00, - 0x7e6b00, 0x8c790b, 0x9a8719, 0xa89527, - 0xb6a335, 0xc4b143, 0xd2bf51, 0xe0cd5f, - 0xeedb6d, 0xfce97b, 0xfff789, 0xffff97 -}; -*/ +/* ROM data. rom.h and rom.c are generated from jumpmanjr.rom */ +#include "rom.h" /* load address of the ROM image */ #define ROM_START 0x8000 -/* address within ROM where the level descriptors starts */ +/* address within ROM where the level descriptors start */ #define LEVEL_BASE 0xa000 /* size of each level descriptor in the ROM */ #define LEVEL_SIZE 0x40 +/* address within ROM where the GR.1/2 font starts */ +#define FONT 0x9e00 + +/* where the level names start in the ROM */ +#define LEVEL_NAMES 0xbb00 + +/* length of each level name */ +#define LEVEL_NAME_SIZE 20 + +/* pixels to blit to our texture. modify these at will, + they will be blitted once per frame. */ Uint32 texture_pixels[160 * 200]; + +/* color registers for the 4 playfield colors on each level. + these hold indices into colortable. */ Uint8 color_regs[4]; +/* read 1 byte at atari address from the ROM */ Uint8 peek(int addr) { return jumpmanjr_rom[addr - ROM_START]; } +/* read 1 word at atari address from the ROM */ Uint16 dpeek(int addr) { return (peek(addr) | (peek(addr + 1) << 8)); } +/* get a pointer within the ROM, give an atari address */ Uint8 *romptr(int addr) { return jumpmanjr_rom + (addr - ROM_START); } +/* deltas are stored in ROM as twos-complement. we'll + interpret them programatically instead of casting them + to signed chars. */ int getdelta(Uint8 d) { return (d < 128) ? (d) : (d - 256); } +/* clear out texture_pixels. generally only needs doing just before + rendering a new level. */ void clear_pixels(void) { memset(texture_pixels, 0, sizeof(texture_pixels)); } +/* draw one copy of a shape (see ../level_maps.txt) */ void draw_shape(int shapeaddr, int xpos, int ypos) { int w = 0, xoffs = 0, yoffs = 0, c = 0; Uint8 *p = romptr(shapeaddr); @@ -389,6 +83,7 @@ void draw_shape(int shapeaddr, int xpos, int ypos) { } } +/* draw multiple copies of a shape, separated by dx/dy pixels */ void draw_shapes(int shapeaddr, int dx, int dy, int xpos, int ypos, int copies) { fprintf(stderr, "draw_shapes(%04x, %d, %d, %d, %d, %d);\n", shapeaddr, dx, dy, xpos, ypos, copies); while(copies--) { @@ -398,12 +93,14 @@ void draw_shapes(int shapeaddr, int dx, int dy, int xpos, int ypos, int copies) } } +/* draw map data. this just takes a rom address, so it can + be used for map changes and such (doesn't have to be in the + level descriptor even). basically this is a C port of draw_map + from the disassembly. */ void draw_map(int addr) { Uint8 *p = romptr(addr); int shapeaddr = 0, dx = 0, dy = 0, xpos = 0, ypos = 0, copies = 0; - clear_pixels(); - while(1) { switch(*p) { case 0xff: /* end opcode */ @@ -435,24 +132,56 @@ void draw_map(int addr) { } +/* there are only 64 chars in the font! */ +void gr1_char(int x, int y, Uint8 color, Uint8 chr) { + int row, pix; + Uint8 *p; + + chr -= 32; + chr %= 64; + p = romptr(FONT + chr * 8); + + for(row = 0; row < 8; row++) { + int b = *p++; + for(pix = 0; pix < 8; pix++) { + if(b & 0x80) { + texture_pixels[x + pix + 160 * y] = colortable[color]; + } else { + texture_pixels[x + pix + 160 * y] = colortable[0]; + } + b <<= 1; + } + y++; + } +} + +void gr1_text(int x, int y, Uint8 color, int addr, int len) { + Uint8 *p = romptr(addr); + + while(len--) { + gr1_char(x, y, color, *p++); + x += 8; + } +} + +/* draw the initial map for a level, given the *zero based* level + number (range 0 to 11). eventually this should play the level + intro music and mess with the color regs. */ void render_level(int levelnum) { int leveldesc = LEVEL_BASE + LEVEL_SIZE * levelnum; int mapaddr = dpeek(leveldesc + 22); + int levelname = LEVEL_NAMES + LEVEL_NAME_SIZE * levelnum; color_regs[0] = 0; color_regs[1] = peek(leveldesc + 47); color_regs[2] = peek(leveldesc + 48); color_regs[3] = peek(leveldesc + 49); + clear_pixels(); + gr1_text(0, 178, 12, levelname, LEVEL_NAME_SIZE); + fprintf(stderr, "leveldesc %04x, mapaddr %04x\n", leveldesc, mapaddr); draw_map(mapaddr); - /* - while(1) { - fprintf(stderr, "%04x\n", *p); - if(*p == 0xff) return; - p++; - } - */ } int main(int argc, char **argv) { |