/* * This a little on the complex side, but I couldn't think of any * other way to do it. I was getting fed up with having to rewrite * my asm code every time I altered the layout of a C struct, but I * couldn't figure out any way to get the asm stuff to read and * understand the C headers. So I made this program. It includes * allegro.h so it knows about everything the C code uses, and when * run it spews out a bunch of #defines containing information about * structure sizes which the asm code can refer to. */ #include #include #include #ifdef DJGPP #include #endif #include "internal.h" int main(int argc, char *argv[]) { FILE *f; int x, y; if (argc < 2) { fprintf(stderr, "Usage: %s \n", argv[0]); return 1; } printf("writing structure offsets into %s...\n", argv[1]); f = fopen(argv[1], "w"); if (f == 0) { fprintf(stderr, "%s: can not open file %s\n", argv[0], argv[1]); return 1; } fprintf(f, "/* automatically generated structure offsets for use by asm code */\n\n"); #ifdef ALLEGRO_COLOR16 fprintf(f, "#ifndef ALLEGRO_COLOR16\n"); fprintf(f, "#define ALLEGRO_COLOR16\n"); fprintf(f, "#endif\n"); fprintf(f, "\n"); #endif #ifdef ALLEGRO_COLOR24 fprintf(f, "#ifndef ALLEGRO_COLOR24\n"); fprintf(f, "#define ALLEGRO_COLOR24\n"); fprintf(f, "#endif\n"); fprintf(f, "\n"); #endif #ifdef ALLEGRO_COLOR32 fprintf(f, "#ifndef ALLEGRO_COLOR32\n"); fprintf(f, "#define ALLEGRO_COLOR32\n"); fprintf(f, "#endif\n"); fprintf(f, "\n"); #endif fprintf(f, "#define BMP_W %ld\n", offsetof(BITMAP, w)); fprintf(f, "#define BMP_H %ld\n", offsetof(BITMAP, h)); fprintf(f, "#define BMP_CLIP %ld\n", offsetof(BITMAP, clip)); fprintf(f, "#define BMP_CL %ld\n", offsetof(BITMAP, cl)); fprintf(f, "#define BMP_CR %ld\n", offsetof(BITMAP, cr)); fprintf(f, "#define BMP_CT %ld\n", offsetof(BITMAP, ct)); fprintf(f, "#define BMP_CB %ld\n", offsetof(BITMAP, cb)); fprintf(f, "#define BMP_VTABLE %ld\n", offsetof(BITMAP, vtable)); fprintf(f, "#define BMP_WBANK %ld\n", offsetof(BITMAP, write_bank)); fprintf(f, "#define BMP_RBANK %ld\n", offsetof(BITMAP, read_bank)); fprintf(f, "#define BMP_DAT %ld\n", offsetof(BITMAP, dat)); fprintf(f, "#define BMP_ID %ld\n", offsetof(BITMAP, bitmap_id)); fprintf(f, "#define BMP_EXTRA %ld\n", offsetof(BITMAP, extra)); fprintf(f, "#define BMP_XOFFSET %ld\n", offsetof(BITMAP, x_ofs)); fprintf(f, "#define BMP_YOFFSET %ld\n", offsetof(BITMAP, y_ofs)); fprintf(f, "#define BMP_SEG %ld\n", offsetof(BITMAP, seg)); fprintf(f, "#define BMP_LINE %ld\n", offsetof(BITMAP, line)); fprintf(f, "\n"); fprintf(f, "#define VTABLE_MASK_COLOR %ld\n", offsetof(GFX_VTABLE, mask_color)); fprintf(f, "\n"); fprintf(f, "#define RLE_W %ld\n", offsetof(RLE_SPRITE, w)); fprintf(f, "#define RLE_H %ld\n", offsetof(RLE_SPRITE, h)); fprintf(f, "#define RLE_DAT %ld\n", offsetof(RLE_SPRITE, dat)); fprintf(f, "\n"); fprintf(f, "#define CMP_PLANAR %ld\n", offsetof(COMPILED_SPRITE, planar)); fprintf(f, "#define CMP_COLOR_DEPTH %ld\n", offsetof(COMPILED_SPRITE, color_depth)); fprintf(f, "#define CMP_DRAW %ld\n", offsetof(COMPILED_SPRITE, proc)); fprintf(f, "\n"); fprintf(f, "#define IRQ_SIZE %ld\n", sizeof(_IRQ_HANDLER)); fprintf(f, "#define IRQ_HANDLER %ld\n", offsetof(_IRQ_HANDLER, handler)); fprintf(f, "#define IRQ_NUMBER %ld\n", offsetof(_IRQ_HANDLER, number)); fprintf(f, "#define IRQ_OLDVEC %ld\n", offsetof(_IRQ_HANDLER, old_vector)); fprintf(f, "\n"); #ifdef DJGPP fprintf(f, "#define DPMI_AX %ld\n", offsetof(__dpmi_regs, x.ax)); fprintf(f, "#define DPMI_BX %ld\n", offsetof(__dpmi_regs, x.bx)); fprintf(f, "#define DPMI_CX %ld\n", offsetof(__dpmi_regs, x.cx)); fprintf(f, "#define DPMI_DX %ld\n", offsetof(__dpmi_regs, x.dx)); fprintf(f, "#define DPMI_SP %ld\n", offsetof(__dpmi_regs, x.sp)); fprintf(f, "#define DPMI_SS %ld\n", offsetof(__dpmi_regs, x.ss)); fprintf(f, "#define DPMI_FLAGS %ld\n", offsetof(__dpmi_regs, x.flags)); fprintf(f, "\n"); #endif fprintf(f, "#define DRAW_SOLID %d\n", DRAW_MODE_SOLID); fprintf(f, "#define DRAW_XOR %d\n", DRAW_MODE_XOR); fprintf(f, "#define DRAW_COPY_PATTERN %d\n", DRAW_MODE_COPY_PATTERN); fprintf(f, "#define DRAW_SOLID_PATTERN %d\n", DRAW_MODE_SOLID_PATTERN); fprintf(f, "#define DRAW_MASKED_PATTERN %d\n", DRAW_MODE_MASKED_PATTERN); fprintf(f, "#define DRAW_TRANS %d\n", DRAW_MODE_TRANS); fprintf(f, "\n"); fprintf(f, "#ifndef MASK_COLOR_8\n"); fprintf(f, "#define MASK_COLOR_8 %d\n", MASK_COLOR_8); fprintf(f, "#define MASK_COLOR_15 %d\n", MASK_COLOR_15); fprintf(f, "#define MASK_COLOR_16 %d\n", MASK_COLOR_16); fprintf(f, "#define MASK_COLOR_24 %d\n", MASK_COLOR_24); fprintf(f, "#define MASK_COLOR_32 %d\n", MASK_COLOR_32); fprintf(f, "#endif\n"); fprintf(f, "\n"); fprintf(f, "#define POLYSEG_U %ld\n", offsetof(POLYGON_SEGMENT, u)); fprintf(f, "#define POLYSEG_V %ld\n", offsetof(POLYGON_SEGMENT, v)); fprintf(f, "#define POLYSEG_DU %ld\n", offsetof(POLYGON_SEGMENT, du)); fprintf(f, "#define POLYSEG_DV %ld\n", offsetof(POLYGON_SEGMENT, dv)); fprintf(f, "#define POLYSEG_C %ld\n", offsetof(POLYGON_SEGMENT, c)); fprintf(f, "#define POLYSEG_DC %ld\n", offsetof(POLYGON_SEGMENT, dc)); fprintf(f, "#define POLYSEG_R %ld\n", offsetof(POLYGON_SEGMENT, r)); fprintf(f, "#define POLYSEG_G %ld\n", offsetof(POLYGON_SEGMENT, g)); fprintf(f, "#define POLYSEG_B %ld\n", offsetof(POLYGON_SEGMENT, b)); fprintf(f, "#define POLYSEG_DR %ld\n", offsetof(POLYGON_SEGMENT, dr)); fprintf(f, "#define POLYSEG_DG %ld\n", offsetof(POLYGON_SEGMENT, dg)); fprintf(f, "#define POLYSEG_DB %ld\n", offsetof(POLYGON_SEGMENT, db)); fprintf(f, "#define POLYSEG_Z %ld\n", offsetof(POLYGON_SEGMENT, z)); fprintf(f, "#define POLYSEG_DZ %ld\n", offsetof(POLYGON_SEGMENT, dz)); fprintf(f, "#define POLYSEG_FU %ld\n", offsetof(POLYGON_SEGMENT, fu)); fprintf(f, "#define POLYSEG_FV %ld\n", offsetof(POLYGON_SEGMENT, fv)); fprintf(f, "#define POLYSEG_DFU %ld\n", offsetof(POLYGON_SEGMENT, dfu)); fprintf(f, "#define POLYSEG_DFV %ld\n", offsetof(POLYGON_SEGMENT, dfv)); fprintf(f, "#define POLYSEG_TEXTURE %ld\n", offsetof(POLYGON_SEGMENT, texture)); fprintf(f, "#define POLYSEG_UMASK %ld\n", offsetof(POLYGON_SEGMENT, umask)); fprintf(f, "#define POLYSEG_VMASK %ld\n", offsetof(POLYGON_SEGMENT, vmask)); fprintf(f, "#define POLYSEG_VSHIFT %ld\n", offsetof(POLYGON_SEGMENT, vshift)); fprintf(f, "#define POLYSEG_SEG %ld\n", offsetof(POLYGON_SEGMENT, seg)); fprintf(f, "\n"); for (x=0; x<3; x++) for (y=0; y<3; y++) fprintf(f, "#define M_V%d%d %ld\n", x, y, offsetof(MATRIX_f, v[x][y])); for (x=0; x<3; x++) fprintf(f, "#define M_T%d %ld\n", x, offsetof(MATRIX_f, t[x])); if (ferror(f)) { fprintf(stderr, "%s: can not write file %s\n", argv[0], argv[1]); return 1; } if (fclose(f)) { fprintf(stderr, "%s: can not close file %s\n", argv[0], argv[1]); return 1; } return 0; }