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Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/drivers/x11/xfonts.c')
-rw-r--r--nx-X11/extras/Mesa/src/mesa/drivers/x11/xfonts.c377
1 files changed, 0 insertions, 377 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/x11/xfonts.c b/nx-X11/extras/Mesa/src/mesa/drivers/x11/xfonts.c
deleted file mode 100644
index d72c600bd..000000000
--- a/nx-X11/extras/Mesa/src/mesa/drivers/x11/xfonts.c
+++ /dev/null
@@ -1,377 +0,0 @@
-
-/*
- * Mesa 3-D graphics library
- * Version: 3.5
- *
- * Copyright (C) 1999-2000 Brian Paul All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-
-/* xfonts.c -- glXUseXFont() for Mesa written by
- * Copyright (C) 1995 Thorsten.Ohl @ Physik.TH-Darmstadt.de
- */
-
-#ifdef __VMS
-#include <GL/vms_x_fix.h>
-#endif
-
-#include "glxheader.h"
-#include "context.h"
-#include "imports.h"
-#include "xfonts.h"
-
-
-/* Some debugging info. */
-
-#ifdef DEBUG
-#undef _R
-#undef _G
-#undef _B
-#include <ctype.h>
-
-int debug_xfonts = 0;
-
-static void
-dump_char_struct(XCharStruct * ch, char *prefix)
-{
- printf("%slbearing = %d, rbearing = %d, width = %d\n",
- prefix, ch->lbearing, ch->rbearing, ch->width);
- printf("%sascent = %d, descent = %d, attributes = %u\n",
- prefix, ch->ascent, ch->descent, (unsigned int) ch->attributes);
-}
-
-static void
-dump_font_struct(XFontStruct * font)
-{
- printf("ascent = %d, descent = %d\n", font->ascent, font->descent);
- printf("char_or_byte2 = (%u,%u)\n",
- font->min_char_or_byte2, font->max_char_or_byte2);
- printf("byte1 = (%u,%u)\n", font->min_byte1, font->max_byte1);
- printf("all_chars_exist = %s\n", font->all_chars_exist ? "True" : "False");
- printf("default_char = %c (\\%03o)\n",
- (char) (isprint(font->default_char) ? font->default_char : ' '),
- font->default_char);
- dump_char_struct(&font->min_bounds, "min> ");
- dump_char_struct(&font->max_bounds, "max> ");
-#if 0
- for (c = font->min_char_or_byte2; c <= font->max_char_or_byte2; c++) {
- char prefix[8];
- sprintf(prefix, "%d> ", c);
- dump_char_struct(&font->per_char[c], prefix);
- }
-#endif
-}
-
-static void
-dump_bitmap(unsigned int width, unsigned int height, GLubyte * bitmap)
-{
- unsigned int x, y;
-
- printf(" ");
- for (x = 0; x < 8 * width; x++)
- printf("%o", 7 - (x % 8));
- putchar('\n');
- for (y = 0; y < height; y++) {
- printf("%3o:", y);
- for (x = 0; x < 8 * width; x++)
- putchar((bitmap[width * (height - y - 1) + x / 8] & (1 << (7 - (x %
- 8))))
- ? '*' : '.');
- printf(" ");
- for (x = 0; x < width; x++)
- printf("0x%02x, ", bitmap[width * (height - y - 1) + x]);
- putchar('\n');
- }
-}
-#endif /* DEBUG */
-
-
-/* Implementation. */
-
-/* Fill a BITMAP with a character C from thew current font
- in the graphics context GC. WIDTH is the width in bytes
- and HEIGHT is the height in bits.
-
- Note that the generated bitmaps must be used with
-
- glPixelStorei (GL_UNPACK_SWAP_BYTES, GL_FALSE);
- glPixelStorei (GL_UNPACK_LSB_FIRST, GL_FALSE);
- glPixelStorei (GL_UNPACK_ROW_LENGTH, 0);
- glPixelStorei (GL_UNPACK_SKIP_ROWS, 0);
- glPixelStorei (GL_UNPACK_SKIP_PIXELS, 0);
- glPixelStorei (GL_UNPACK_ALIGNMENT, 1);
-
- Possible optimizations:
-
- * use only one reusable pixmap with the maximum dimensions.
- * draw the entire font into a single pixmap (careful with
- proportional fonts!).
-*/
-
-
-/*
- * Generate OpenGL-compatible bitmap.
- */
-static void
-fill_bitmap(Display * dpy, Window win, GC gc,
- unsigned int width, unsigned int height,
- int x0, int y0, unsigned int c, GLubyte * bitmap)
-{
- XImage *image;
- unsigned int x, y;
- Pixmap pixmap;
- XChar2b char2b;
-
- pixmap = XCreatePixmap(dpy, win, 8 * width, height, 1);
- XSetForeground(dpy, gc, 0);
- XFillRectangle(dpy, pixmap, gc, 0, 0, 8 * width, height);
- XSetForeground(dpy, gc, 1);
-
- char2b.byte1 = (c >> 8) & 0xff;
- char2b.byte2 = (c & 0xff);
-
- XDrawString16(dpy, pixmap, gc, x0, y0, &char2b, 1);
-
- image = XGetImage(dpy, pixmap, 0, 0, 8 * width, height, 1, XYPixmap);
- if (image) {
- /* Fill the bitmap (X11 and OpenGL are upside down wrt each other). */
- for (y = 0; y < height; y++)
- for (x = 0; x < 8 * width; x++)
- if (XGetPixel(image, x, y))
- bitmap[width * (height - y - 1) + x / 8] |=
- (1 << (7 - (x % 8)));
- XDestroyImage(image);
- }
-
- XFreePixmap(dpy, pixmap);
-}
-
-/*
- * determine if a given glyph is valid and return the
- * corresponding XCharStruct.
- */
-static XCharStruct *
-isvalid(XFontStruct * fs, unsigned int which)
-{
- unsigned int rows, pages;
- unsigned int byte1 = 0, byte2 = 0;
- int i, valid = 1;
-
- rows = fs->max_byte1 - fs->min_byte1 + 1;
- pages = fs->max_char_or_byte2 - fs->min_char_or_byte2 + 1;
-
- if (rows == 1) {
- /* "linear" fonts */
- if ((fs->min_char_or_byte2 > which) || (fs->max_char_or_byte2 < which))
- valid = 0;
- }
- else {
- /* "matrix" fonts */
- byte2 = which & 0xff;
- byte1 = which >> 8;
- if ((fs->min_char_or_byte2 > byte2) ||
- (fs->max_char_or_byte2 < byte2) ||
- (fs->min_byte1 > byte1) || (fs->max_byte1 < byte1))
- valid = 0;
- }
-
- if (valid) {
- if (fs->per_char) {
- if (rows == 1) {
- /* "linear" fonts */
- return (fs->per_char + (which - fs->min_char_or_byte2));
- }
- else {
- /* "matrix" fonts */
- i = ((byte1 - fs->min_byte1) * pages) +
- (byte2 - fs->min_char_or_byte2);
- return (fs->per_char + i);
- }
- }
- else {
- return (&fs->min_bounds);
- }
- }
- return (NULL);
-}
-
-
-void
-Fake_glXUseXFont(Font font, int first, int count, int listbase)
-{
- Display *dpy;
- Window win;
- Pixmap pixmap;
- GC gc;
- XGCValues values;
- unsigned long valuemask;
- XFontStruct *fs;
- GLint swapbytes, lsbfirst, rowlength;
- GLint skiprows, skippixels, alignment;
- unsigned int max_width, max_height, max_bm_width, max_bm_height;
- GLubyte *bm;
- int i;
-
- dpy = glXGetCurrentDisplay();
- if (!dpy)
- return; /* I guess glXMakeCurrent wasn't called */
- win = RootWindow(dpy, DefaultScreen(dpy));
-
- fs = XQueryFont(dpy, font);
- if (!fs) {
- _mesa_error(NULL, GL_INVALID_VALUE,
- "Couldn't get font structure information");
- return;
- }
-
- /* Allocate a bitmap that can fit all characters. */
- max_width = fs->max_bounds.rbearing - fs->min_bounds.lbearing;
- max_height = fs->max_bounds.ascent + fs->max_bounds.descent;
- max_bm_width = (max_width + 7) / 8;
- max_bm_height = max_height;
-
- bm = (GLubyte *) MALLOC((max_bm_width * max_bm_height) * sizeof(GLubyte));
- if (!bm) {
- XFreeFontInfo(NULL, fs, 1);
- _mesa_error(NULL, GL_OUT_OF_MEMORY,
- "Couldn't allocate bitmap in glXUseXFont()");
- return;
- }
-
-#if 0
- /* get the page info */
- pages = fs->max_char_or_byte2 - fs->min_char_or_byte2 + 1;
- firstchar = (fs->min_byte1 << 8) + fs->min_char_or_byte2;
- lastchar = (fs->max_byte1 << 8) + fs->max_char_or_byte2;
- rows = fs->max_byte1 - fs->min_byte1 + 1;
- unsigned int first_char, last_char, pages, rows;
-#endif
-
- /* Save the current packing mode for bitmaps. */
- glGetIntegerv(GL_UNPACK_SWAP_BYTES, &swapbytes);
- glGetIntegerv(GL_UNPACK_LSB_FIRST, &lsbfirst);
- glGetIntegerv(GL_UNPACK_ROW_LENGTH, &rowlength);
- glGetIntegerv(GL_UNPACK_SKIP_ROWS, &skiprows);
- glGetIntegerv(GL_UNPACK_SKIP_PIXELS, &skippixels);
- glGetIntegerv(GL_UNPACK_ALIGNMENT, &alignment);
-
- /* Enforce a standard packing mode which is compatible with
- fill_bitmap() from above. This is actually the default mode,
- except for the (non)alignment. */
- glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_FALSE);
- glPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE);
- glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
- glPixelStorei(GL_UNPACK_SKIP_ROWS, 0);
- glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
- glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-
- pixmap = XCreatePixmap(dpy, win, 10, 10, 1);
- values.foreground = BlackPixel(dpy, DefaultScreen(dpy));
- values.background = WhitePixel(dpy, DefaultScreen(dpy));
- values.font = fs->fid;
- valuemask = GCForeground | GCBackground | GCFont;
- gc = XCreateGC(dpy, pixmap, valuemask, &values);
- XFreePixmap(dpy, pixmap);
-
-#ifdef DEBUG
- if (debug_xfonts)
- dump_font_struct(fs);
-#endif
-
- for (i = 0; i < count; i++) {
- unsigned int width, height, bm_width, bm_height;
- GLfloat x0, y0, dx, dy;
- XCharStruct *ch;
- int x, y;
- unsigned int c = first + i;
- int list = listbase + i;
- int valid;
-
- /* check on index validity and get the bounds */
- ch = isvalid(fs, c);
- if (!ch) {
- ch = &fs->max_bounds;
- valid = 0;
- }
- else {
- valid = 1;
- }
-
-#ifdef DEBUG
- if (debug_xfonts) {
- char s[7];
- sprintf(s, isprint(c) ? "%c> " : "\\%03o> ", c);
- dump_char_struct(ch, s);
- }
-#endif
-
- /* glBitmap()' parameters:
- straight from the glXUseXFont(3) manpage. */
- width = ch->rbearing - ch->lbearing;
- height = ch->ascent + ch->descent;
- x0 = -ch->lbearing;
- y0 = ch->descent - 0; /* XXX used to subtract 1 here */
- /* but that caused a conformace failure */
- dx = ch->width;
- dy = 0;
-
- /* X11's starting point. */
- x = -ch->lbearing;
- y = ch->ascent;
-
- /* Round the width to a multiple of eight. We will use this also
- for the pixmap for capturing the X11 font. This is slightly
- inefficient, but it makes the OpenGL part real easy. */
- bm_width = (width + 7) / 8;
- bm_height = height;
-
- glNewList(list, GL_COMPILE);
- if (valid && (bm_width > 0) && (bm_height > 0)) {
-
- MEMSET(bm, '\0', bm_width * bm_height);
- fill_bitmap(dpy, win, gc, bm_width, bm_height, x, y, c, bm);
-
- glBitmap(width, height, x0, y0, dx, dy, bm);
-#ifdef DEBUG
- if (debug_xfonts) {
- printf("width/height = %u/%u\n", width, height);
- printf("bm_width/bm_height = %u/%u\n", bm_width, bm_height);
- dump_bitmap(bm_width, bm_height, bm);
- }
-#endif
- }
- else {
- glBitmap(0, 0, 0.0, 0.0, dx, dy, NULL);
- }
- glEndList();
- }
-
- FREE(bm);
- XFreeFontInfo(NULL, fs, 1);
- XFreeGC(dpy, gc);
-
- /* Restore saved packing modes. */
- glPixelStorei(GL_UNPACK_SWAP_BYTES, swapbytes);
- glPixelStorei(GL_UNPACK_LSB_FIRST, lsbfirst);
- glPixelStorei(GL_UNPACK_ROW_LENGTH, rowlength);
- glPixelStorei(GL_UNPACK_SKIP_ROWS, skiprows);
- glPixelStorei(GL_UNPACK_SKIP_PIXELS, skippixels);
- glPixelStorei(GL_UNPACK_ALIGNMENT, alignment);
-}
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