diff options
Diffstat (limited to 'src/main-lsl.c')
| -rw-r--r-- | src/main-lsl.c | 598 |
1 files changed, 0 insertions, 598 deletions
diff --git a/src/main-lsl.c b/src/main-lsl.c deleted file mode 100644 index d24ede3f..00000000 --- a/src/main-lsl.c +++ /dev/null @@ -1,598 +0,0 @@ -/* - * File: main-lsl.c - * Purpose: Support for Linux-SVGALIB Angband - * Original Author: Jon Taylor (taylorj@gaia.ecs.csus.edu) - * Update by: Dennis Payne (dulsi@identicalsoftware.com) - * Version: 1.4.0, 12/05/99 - * - * Large amounts of code rewritten by Steven Fuerst. 20/04/2001 - * - * It now uses a hacked-up version of the X11 bmp-loading code. - * (Preparing to use 256 colour 16x16 mode) - */ - -#include "angband.h" - -#ifdef USE_LSL - -/* Standard C header files */ -#include <stdio.h> -#include <stdlib.h> - -/* SVGAlib header files */ -#include <vga.h> -#include <vgagl.h> -#include <vgakeyboard.h> -#include <zlib.h> - -#define COLOR_OFFSET 240 - -/* Hack - Define font/graphics cell width and height */ -#define CHAR_W 8 -#define CHAR_H 13 - -/* Global palette */ -static byte *pal = NULL; - -#ifdef USE_GRAPHICS - -/* - * The Win32 "BITMAPFILEHEADER" type. - */ -typedef struct BITMAPFILEHEADER -{ - u16b bfType; - u32b bfSize; - u16b bfReserved1; - u16b bfReserved2; - u32b bfOffBits; -} -BITMAPFILEHEADER; - - -/* - * The Win32 "BITMAPINFOHEADER" type. - */ -typedef struct BITMAPINFOHEADER -{ - u32b biSize; - u32b biWidth; - u32b biHeight; - u16b biPlanes; - u16b biBitCount; - u32b biCompresion; - u32b biSizeImage; - u32b biXPelsPerMeter; - u32b biYPelsPerMeter; - u32b biClrUsed; - u32b biClrImportand; -} -BITMAPINFOHEADER; - -/* - * The Win32 "RGBQUAD" type. - */ -typedef struct RGBQUAD -{ - unsigned char b, g, r; - unsigned char filler; -} -RGBQUAD; - - -/*** Helper functions for system independent file loading. ***/ - -static byte get_byte(FILE *fff) -{ - /* Get a character, and return it */ - return (getc(fff) & 0xFF); -} - -static void rd_byte(FILE *fff, byte *ip) -{ - *ip = get_byte(fff); -} - -static void rd_u16b(FILE *fff, u16b *ip) -{ - (*ip) = get_byte(fff); - (*ip) |= ((u16b)(get_byte(fff)) << 8); -} - -static void rd_u32b(FILE *fff, u32b *ip) -{ - (*ip) = get_byte(fff); - (*ip) |= ((u32b)(get_byte(fff)) << 8); - (*ip) |= ((u32b)(get_byte(fff)) << 16); - (*ip) |= ((u32b)(get_byte(fff)) << 24); -} - - -/* - * Read a Win32 BMP file. - * - * Assumes that the bitmap has a size such that no padding is needed in - * various places. Currently only handles bitmaps with 3 to 256 colors. - */ -static byte *ReadBMP(char *Name, int *bw, int *bh) -{ - FILE *f; - - BITMAPFILEHEADER fileheader; - BITMAPINFOHEADER infoheader; - - byte *Data; - - int ncol; - - int total; - - int i; - - u16b x, y; - - /* Open the BMP file */ - f = fopen(Name, "r"); - - /* No such file */ - if (!f) - { - quit ("No bitmap to load!"); - } - - /* Read the "BITMAPFILEHEADER" */ - rd_u16b(f, &(fileheader.bfType)); - rd_u32b(f, &(fileheader.bfSize)); - rd_u16b(f, &(fileheader.bfReserved1)); - rd_u16b(f, &(fileheader.bfReserved2)); - rd_u32b(f, &(fileheader.bfOffBits)); - - /* Read the "BITMAPINFOHEADER" */ - rd_u32b(f, &(infoheader.biSize)); - rd_u32b(f, &(infoheader.biWidth)); - rd_u32b(f, &(infoheader.biHeight)); - rd_u16b(f, &(infoheader.biPlanes)); - rd_u16b(f, &(infoheader.biBitCount)); - rd_u32b(f, &(infoheader.biCompresion)); - rd_u32b(f, &(infoheader.biSizeImage)); - rd_u32b(f, &(infoheader.biXPelsPerMeter)); - rd_u32b(f, &(infoheader.biYPelsPerMeter)); - rd_u32b(f, &(infoheader.biClrUsed)); - rd_u32b(f, &(infoheader.biClrImportand)); - - /* Verify the header */ - if (feof(f) || - (fileheader.bfType != 19778) || - (infoheader.biSize != 40)) - { - quit_fmt("Incorrect BMP file format %s", Name); - } - - /* The two headers above occupy 54 bytes total */ - /* The "bfOffBits" field says where the data starts */ - /* The "biClrUsed" field does not seem to be reliable */ - /* Compute number of colors recorded */ - ncol = (fileheader.bfOffBits - 54) / 4; - - for (i = 0; i < ncol; i++) - { - RGBQUAD clrg; - - /* Read an "RGBQUAD" */ - rd_byte(f, &(clrg.b)); - rd_byte(f, &(clrg.g)); - rd_byte(f, &(clrg.r)); - rd_byte(f, &(clrg.filler)); - - /* Analyze the color */ - pal[i * 3] = clrg.b; - pal[i * 3 + 1] = clrg.g; - pal[i * 3 + 2] = clrg.r; - } - - /* Look for illegal bitdepths. */ - if ((infoheader.biBitCount == 1) || (infoheader.biBitCount == 24)) - { - quit_fmt("Illegal biBitCount %d in %s", - infoheader.biBitCount, Name); - } - - /* Determine total bytes needed for image */ - total = infoheader.biWidth * (infoheader.biHeight + 2); - - /* Allocate image memory */ - C_MAKE(Data, total, byte); - - for (y = 0; y < infoheader.biHeight; y++) - { - int y2 = infoheader.biHeight - y - 1; - - for (x = 0; x < infoheader.biWidth; x++) - { - int ch = getc(f); - - /* Verify not at end of file XXX XXX */ - if (feof(f)) quit_fmt("Unexpected end of file in %s", Name); - - if (infoheader.biBitCount == 8) - { - Data[x + y2 * infoheader.biWidth] = ch; - } - else if (infoheader.biBitCount == 4) - { - Data[x + y2 * infoheader.biWidth] = ch / 16; - x++; - Data[x + y2 * infoheader.biWidth] = ch % 16; - } - } - } - - fclose(f); - - /* Save the size for later */ - *bw = infoheader.biWidth; - *bh = infoheader.biHeight; - - return (Data); -} - -#endif /* USE_GRAPHICS */ - - -/* The main "term" structure */ -static term term_screen_body; - -/* The visible and virtual screens */ -GraphicsContext *screen; -GraphicsContext *buffer; - -/* The font data */ -static void *font; - -/* Initialize the screen font */ -static void initfont(void) -{ - gzFile fontfile; - void *temp; - long junk; - - if (!(fontfile = gzopen("/usr/lib/kbd/consolefonts/lat1-12.psf.gz", "r"))) - { - /* Try uncompressed */ - if (!(fontfile = gzopen("/usr/lib/kbd/consolefonts/lat1-12.psf", "r"))) - { - printf ("Error: could not open font file. Aborting....\n"); - exit(1); - } - } - - /* Junk the 4-byte header */ - gzread(fontfile, &junk, 4); - - /* Initialize font */ - - /* - * Read in 13 bytes per character, and there are 256 characters - * in the font. This means we need to load 13x256 = 3328 bytes. - */ - C_MAKE(temp, 256 * 13, byte); - gzread(fontfile, temp, 256 * 13); - - /* - * I don't understand this code - SF - * (Is it converting from 8x13 -> 8x12?) - * - * I assume 15 is a colour... - */ - font = malloc(256 * 8 * 12 * BYTESPERPIXEL); - gl_expandfont(8, 12, 15, temp, font); - gl_setfont(8, 12, font); - - /* Cleanup */ - C_FREE(temp, 256 * 13, byte); - gzclose(fontfile); -} - -/* Initialize palette values for colors 0-15 */ -static void setpal(void) -{ - int i; - gl_setpalette(pal); - for (i = 0; i < 16; i++) - { - gl_setpalettecolor(COLOR_OFFSET + i, - angband_color_table[i][1] >> 2, - angband_color_table[i][2] >> 2, - angband_color_table[i][3] >> 2); - } -} - -/* - * Check for "events" - * If block, then busy-loop waiting for event, else check once and exit. - */ -static errr CheckEvents(int block) -{ - int k = 0; - - if (block) - { - k = vga_getkey(); - if (k < 1) return (1); - } - else - { - k = vga_getch(); - } - - Term_keypress(k); - return (0); -} - - -/* - * Low-level graphics routine (assumes valid input) - * Do a "special thing" - */ -static errr term_xtra_svgalib(int n, int v) -{ - switch (n) - { - case TERM_XTRA_EVENT: - { - /* Process some pending events */ - if (v) return (CheckEvents (FALSE)); - while (!CheckEvents (TRUE)); - return 0; - } - - case TERM_XTRA_FLUSH: - { - /* Flush all pending events */ - /* Should discard all key presses but unimplemented */ - return 0; - } - - case TERM_XTRA_CLEAR: - { - /* Clear the entire window */ - gl_fillbox (0, 0, 80 * CHAR_W, 25 * CHAR_H, 0); - return 0; - } - - case TERM_XTRA_DELAY: - { - /* Delay for some milliseconds */ - usleep(1000 * v); - return 0; - } - } - return 1; -} - -/* - * Low-level graphics routine (assumes valid input) - * Draws a "cursor" at (x,y) - */ -static errr term_curs_svgalib(int x, int y) -{ - gl_fillbox(x * CHAR_W, y * CHAR_H, CHAR_W, CHAR_H, 15); - return (0); -} - -/* - * Low-level graphics routine (assumes valid input) - * Erases a rectangular block of characters from (x,y) to (x+w,y+h) - */ -static errr term_wipe_svgalib(int x, int y, int n) -{ - gl_fillbox(x * CHAR_W, y * CHAR_H, n * CHAR_W, CHAR_H, 0); - return (0); -} - -/* - * Low-level graphics routine (assumes valid input) - * Draw n chars at location (x,y) with value s and attribute a - */ -static errr term_text_svgalib(int x, int y, int n, byte a, cptr s) -{ - /* Clear the area */ - term_wipe_svgalib(x, y, n); - - /* Draw the coloured text */ - gl_colorfont(8, 12, COLOR_OFFSET + (a & 0x0F), font); - gl_writen(x * CHAR_W, y * CHAR_H, n, (char *) s); - return (0); -} - -/* - * Low-level graphics routine (assumes valid input) - * Draw n chars at location (x,y) with value s and attribute a - */ - -#ifdef USE_GRAPHICS - -# ifdef USE_TRANSPARENCY -static errr term_pict_svgalib(int x, int y, int n, - const byte *ap, const char *cp, const byte *tap, const char *tcp) -# else /* USE_TRANSPARENCY */ -static errr term_pict_svgalib(int x, int y, int n, - const byte *ap, const char *cp) -# endif /* USE_TRANSPARENCY */ -{ - int i; - int x2, y2; - - -# ifdef USE_TRANSPARENCY - /* Hack - Ignore unused transparency data for now */ - (void) tap; - (void) tcp; -# endif /* USE_TRANSPARENCY */ - - for (i = 0; i < n; i++) - { - x2 = (cp[i] & 0x7F) * CHAR_W; - y2 = (ap[i] & 0x7F) * CHAR_H; - - gl_copyboxfromcontext(buffer, x2, y2, CHAR_W, CHAR_H, - (x + i) * CHAR_W, y * CHAR_H); - } - return (0); -} - -static void term_load_bitmap(void) -{ - char path[1024]; - - byte *temp = NULL; - - int bw, bh; - - /* Build the "graf" path */ - path_build(path, 1024, ANGBAND_DIR_XTRA, "graf"); - - sprintf (path, "%s/8x13.bmp", path); - - /* See if the file exists */ - if (fd_close(fd_open(path, O_RDONLY))) - { - printf ("Unable to load bitmap data file %s, bailing out....\n", path); - exit ( -1); - } - - temp = ReadBMP(path, &bw, &bh); - - /* Blit bitmap into buffer */ - gl_putbox(0, 0, bw, bh, temp); - - FREE(temp, byte); - - return; -} - -#endif /* USE_GRAPHICS */ - -/* - * Term hook - * Initialize a new term - */ -static void term_init_svgalib(term *t) -{ - int vgamode; - - /* Only one term */ - (void) t; - - vga_init(); - - /* The palette is 256x3 bytes big (RGB). */ - C_MAKE(pal, 768, byte); - -#ifdef USE_GRAPHICS - - /* Hardwire this mode in for now */ - vgamode = G1024x768x256; - - /* Set up the bitmap buffer context */ - gl_setcontextvgavirtual(vgamode); - buffer = gl_allocatecontext(); - gl_getcontext(buffer); - - /* Load bitmap into virtual screen */ - term_load_bitmap(); - -#endif /* USE_GRAPHICS */ - - /* Hardwire this mode in for now */ - vgamode = G640x480x256; - - /* Set up the physical screen context */ - if (vga_setmode(vgamode) < 0) - { - quit("Graphics mode not available!"); - } - - gl_setcontextvga(vgamode); - screen = gl_allocatecontext(); - gl_getcontext(screen); - - /* Is this needed? */ - gl_enablepageflipping(screen); - - /* Set up palette colors */ - setpal(); - - /* Load the character font data */ - initfont(); - - /* Color 0 isn't transparent */ - gl_setwritemode(WRITEMODE_OVERWRITE); -} - -/* - * Term hook - * Nuke an old term - */ -static void term_nuke_svgalib(term *t) -{ - /* Only one term */ - (void) t; - - vga_setmode(TEXT); -} - -/* - * Hook SVGAlib routines into term.c - */ -errr init_lsl(void) -{ - term *t = &term_screen_body; - -#ifdef USE_GRAPHICS - - if (arg_graphics) - { - use_graphics = TRUE; - } - -#endif /* USE_GRAPHICS */ - - /* Initialize the term */ - term_init(t, 80, 24, 1024); - - /* The cursor is done via software and needs erasing */ - t->soft_cursor = TRUE; - - t->attr_blank = TERM_DARK; - t->char_blank = ' '; - - /* Add hooks */ - t->init_hook = term_init_svgalib; - t->nuke_hook = term_nuke_svgalib; - t->text_hook = term_text_svgalib; - -#ifdef USE_GRAPHICS - - if (use_graphics) - { - t->pict_hook = term_pict_svgalib; - t->higher_pict = TRUE; - } - -#endif /* USE_GRAPHICS */ - - t->wipe_hook = term_wipe_svgalib; - t->curs_hook = term_curs_svgalib; - t->xtra_hook = term_xtra_svgalib; - - /* Save the term */ - term_screen = t; - - /* Activate it */ - Term_activate(term_screen); - - return (0); -} - -#endif /* USE_LSL */ |