diff options
Diffstat (limited to 'util/stormdwg.c')
| -rw-r--r-- | util/stormdwg.c | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/util/stormdwg.c b/util/stormdwg.c new file mode 100644 index 0000000..e13916c --- /dev/null +++ b/util/stormdwg.c @@ -0,0 +1,184 @@ +/* $XConsortium: dwg.c /main/2 1996/10/28 06:57:55 kaleb $ */ + + + +/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/mga/util/stormdwg.c,v 1.1 1997/04/12 14:11:29 hohndel Exp $ */ + +#include <stdio.h> +/* #include <stdlib.h> */ + +char *opcodes[] = { + "line_open", /* 0000 */ + "autoline_open", /* 0001 */ + "line_close", /* 0010 */ + "autoline_close", /* 0011 */ + + "trapezoid", /* 0100 */ + "trapezoid texture map", /* 0101 */ + "reserved trap", /* 0110 */ + "reserved trap", /* 0111 */ + + "bitblt", /* 1000 */ + "iload", /* 1001 */ + "reserved", /* 1010 */ + "reserved", /* 1011 */ + + "fbitblt", /* 1100 */ + "iload scale", /* 1101 */ + "reserved", /* 1110 */ + "iload filter" /* 1111 */ +}; + +char *atype[] = { + "rpl - Write (Replace)", /* 000 */ + "rstr - read-modify-write (raster)", /* 001 */ + "reserved", /* 010 */ + "z1 - depth mode with gouraud", /* 011 */ + "blk - block write mode", /* 100 */ + "reserved", /* 101 */ + "reserved", /* 110 */ + "I - Gouraud (with depth compare)" /* 111 */ +}; + +char *zmode[] = { + "NOZCMP - always", /* 000 */ + "reserved", /* 001 */ + "ZE - depth =", /* 010 */ + "zne - depth !=", /* 011 */ + "zlt", /* 100 */ + "zlte", /* 101 */ + "zgt", /* 110 */ + "zgte" /* 111 */ +}; + +char *bop[] = { + "0", /* 0000 */ + "~(D|S)", /* 0001 */ + "D & ~S", /* 0010 */ + "~S", /* 0011 */ + + "(~D) & S", /* 0100 */ + "~D", /* 0101 */ + "D ^ S", /* 0110 */ + "~ (D & S)", /* 0111 */ + + "D & S", /* 1000 */ + "~(D^S)", /* 1001 */ + "D", /* 1010 */ + "D | ~S", /* 1011 */ + + "S", /* 1100 */ + "(~D) | S", /* 1101 */ + "D | S", /* 1110 */ + "1" /* 1111 */ +}; + +char *bitmod[] = { + "BMONOLEF - Source is mono, or if iload, source is little endian", /* 0000 */ + "BPLAN - source is mono from one plane", /* 0001 */ + "BFCOL - source is colour, and is formatted from host", /* 0010 */ + "BU32BGR - source is colour. For ILOAD, it's in 32bpp, BGR format", /* 0011 */ + + "BMONOWEF - source is mono, or if iload, source is windows format", /* 0100 */ + "error! no such mode", /* 0101 */ + "error! no such mode", /* 0110 */ + "BU32RGB - source is colour, or if iload, source is 32 bpp RGB", /* 0111 */ + + "error! no such mode", /* 1000 */ + "error! no such mode", /* 1001 */ + "error! no such mode", /* 1010 */ + "BU24BGR - source is colour, of if iload, source is 24 bpp BGR", /* 1011 */ + + "error! no such mode", /* 1100 */ + "error! no such mode", /* 1101 */ + "BUYUV - source is color, or for ILOAD, it's in 4:2:2 YUV format", /* 1110 */ + "BU24RGB - source is color, or for ILOAD, it's in 24 bpp RGB" /* 1111 */ +}; + +main(argc, argv) +int argc; +char *argv[]; +{ + unsigned long val, tmp; + + if ( argc != 2 ) + { + fprintf(stderr, "usage: %s hexval\n", argv[0]); + return 1; + } + + val = strtoul(argv[1], NULL, 16); + + printf("the val is : %d\n", val); + + /* opcode */ + + tmp = val & 0x0f; + + printf("opcode: %s\n", opcodes[tmp]); + + tmp = ( val >> 4 ) & 0x7; + + printf("atype: %s\n", atype[tmp]); + + + if ( val & 128 ) + printf("xy bitblt\n"); + else + printf("linear bitblt\n"); + + tmp = ( val >> 8 ) & 7; + + printf("zmode: %s\n", zmode[tmp]); + + + if ( val & ( 1 << 11 ) ) + printf("solid line or constant trapezoid\n"); + else + printf("src0 - 3 may need to be loaded"); + + if ( val & ( 1 << 12 )) + printf("ar0-ar6 = 0\n"); + else + printf("you may need to set ar0-6.\n"); + + + if ( val & ( 1 << 13 )) + printf("sgn = 0\n"); + else + printf("sgn is not affected\n"); + + + if ( val & ( 1 << 14 )) + printf("shift = 0\n"); + else + printf("shift is not affected\n"); + + + tmp = (val>>16) & 0x0f; + + if ( ((val >> 4) & 7) == 4 && tmp != 0x0c ) + printf("Error! Block (BLK) atype and non-source binary op chosen. Replace (S) bop will be used.\n"); + + printf("bop = %s, where ~ = bitwise complement, ^ = xor\n", bop[tmp]); + + if ( ((val >> 20) & 0x0f) == 0 ) + printf("opaque object\n"); + else + printf("partially opaque object\n"); + + tmp = (val >> 25) & 0x0f; + printf("bitmod: %s\n", bitmod[tmp]); + + if ((val >> 29) & 0x01) + printf("patterning enabled\n"); + else + printf("patterning disabled\n"); + + if ((val >> 30) & 0x01) + printf("background colour is transparent\n"); + else + printf("background colour is opaque\n"); + + return 0; +} |