+++ /dev/null
-/*
-Copyright (C) 2001-2006, William Joseph.
-All Rights Reserved.
-
-This file is part of GtkRadiant.
-
-GtkRadiant is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
-
-GtkRadiant is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GtkRadiant; if not, write to the Free Software
-Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-*/
-
-#include "glfont.h"
-#include "igl.h"
-
-// generic string printing with call lists
-class GLFontCallList: public GLFont
-{
- GLuint m_displayList;
- int m_pixelHeight;
- int m_pixelAscent;
- int m_pixelDescent;
- public:
- GLFontCallList(GLuint displayList, int asc, int desc, int pixelHeight) : m_displayList(displayList), m_pixelHeight(pixelHeight), m_pixelAscent(asc), m_pixelDescent(desc)
- {
- }
- virtual ~GLFontCallList()
- {
- glDeleteLists(m_displayList, 256);
- }
- void printString(const char *s)
- {
- GlobalOpenGL().m_glListBase(m_displayList);
- GlobalOpenGL().m_glCallLists(GLsizei(strlen(s)), GL_UNSIGNED_BYTE, reinterpret_cast<const GLubyte*>(s));
- }
- virtual int getPixelAscent() const
- {
- return m_pixelAscent;
- }
- virtual int getPixelDescent() const
- {
- return m_pixelDescent;
- }
- virtual int getPixelHeight() const
- {
- return m_pixelHeight;
- }
-};
-
-#ifdef _WIN32
- #include <windows.h>
-#endif
-#include "debugging/debugging.h"
-
-// LordHavoc: this is code for direct Xlib bitmap character fetching, as an
-// alternative to requiring gtkglarea, it was created due to a lack of this
-// package on SuSE 9.x but this package is now commonly shipping in Linux
-// distributions so this code may be unnecessary, feel free however to enable
-// it when building packages for distros that do not ship with that package,
-// or if you just prefer less dependencies...
-#if 0
-
-#include <X11/Xlib.h>
-#include <gdk/gdkx.h>
-#include <GL/glx.h>
-
-GLFont *glfont_create(const char* font_string)
-{
- GLuint font_list_base;
- XFontStruct *fontInfo;
- Display *dpy = GDK_DISPLAY ();
- unsigned int i, first, last, firstrow, lastrow;
- int maxchars;
- int firstbitmap;
-
- fontInfo = XLoadQueryFont (dpy, "-*-fixed-*-*-*-*-8-*-*-*-*-*-*-*");
- if (fontInfo == NULL)
- {
- // try to load other fonts
- fontInfo = XLoadQueryFont (dpy, "-*-fixed-*-*-*-*-*-*-*-*-*-*-*-*");
-
- // any font will do !
- if (fontInfo == NULL)
- fontInfo = XLoadQueryFont(dpy, "-*-*-*-*-*-*-*-*-*-*-*-*-*-*");
-
- if (fontInfo == NULL)
- ERROR_MESSAGE("couldn't create font");
- }
-
- first = (int)fontInfo->min_char_or_byte2;
- last = (int)fontInfo->max_char_or_byte2;
- firstrow = (int)fontInfo->min_byte1;
- lastrow = (int)fontInfo->max_byte1;
- /*
- * How many chars in the charset
- */
- maxchars = 256 * lastrow + last;
- font_list_base = glGenLists(maxchars+1);
- if (font_list_base == 0)
- {
- ERROR_MESSAGE( "couldn't create font" );
- }
-
- /*
- * Get offset to first char in the charset
- */
- firstbitmap = 256 * firstrow + first;
- /*
- * for each row of chars, call glXUseXFont to build the bitmaps.
- */
-
- for(i=firstrow; i<=lastrow; i++)
- {
- glXUseXFont(fontInfo->fid, firstbitmap, last-first+1, font_list_base+firstbitmap);
- firstbitmap += 256;
- }
-
-/* *height = fontInfo->ascent + fontInfo->descent;
- *width = fontInfo->max_bounds.width; */
- return new GLFontCallList(font_list_base, fontInfo->ascent, fontInfo->descent, fontInfo->ascent + fontInfo->descent);
-}
-
-#elif 0
-
-#include <gtk/gtkglwidget.h>
-
-GLFont *glfont_create(const char* font_string)
-{
- GLuint font_list_base = glGenLists (256);
- gint font_height = 0, font_ascent = 0, font_descent = 0;
-
- PangoFontDescription* font_desc = pango_font_description_from_string (font_string);
-
- PangoFont* font = gdk_gl_font_use_pango_font (font_desc, 0, 256, font_list_base);
-
- if(font == 0)
- {
- pango_font_description_free (font_desc);
- font_desc = pango_font_description_from_string ("fixed 8");
- font = gdk_gl_font_use_pango_font (font_desc, 0, 256, font_list_base);
- }
-
- if(font == 0)
- {
- pango_font_description_free (font_desc);
- font_desc = pango_font_description_from_string ("courier new 8");
- font = gdk_gl_font_use_pango_font (font_desc, 0, 256, font_list_base);
- }
-
- if(font != 0)
- {
- PangoFontMetrics* font_metrics = pango_font_get_metrics (font, 0);
-
- font_ascent = pango_font_metrics_get_ascent (font_metrics);
- font_descent = pango_font_metrics_get_descent (font_metrics);
- font_height = font_ascent + font_descent;
-
- font_ascent = PANGO_PIXELS (font_ascent);
- font_descent = PANGO_PIXELS (font_descent);
- font_height = PANGO_PIXELS (font_height);
-
- pango_font_metrics_unref (font_metrics);
- }
-
- pango_font_description_free (font_desc);
-
- // fix for pango/gtkglext metrix bug
- if(font_height > 256)
- font_height = 16;
-
- return new GLFontCallList(font_list_base, font_ascent, font_descent, font_height);
-}
-#else
-
-// new font code ripped from ZeroRadiant
-
-#include <pango/pangoft2.h>
-#include <pango/pango-utils.h>
-
-class GLFontInternal: public GLFont
-{
- const char *font_string;
- int font_height;
- int font_ascent;
- int font_descent;
- int y_offset_bitmap_render_pango_units;
- PangoContext *ft2_context;
- PangoFontMap *fontmap;
-
- public:
- GLFontInternal(const char *_font_string): font_string(_font_string)
- {
- PangoFontDescription *font_desc;
- PangoLayout *layout;
- PangoRectangle log_rect;
- int font_ascent_pango_units;
- int font_descent_pango_units;
-
-#if !PANGO_VERSION_CHECK(1,22,0)
- ft2_context = pango_ft2_get_context(72, 72);
-#else
- fontmap = pango_ft2_font_map_new();
- pango_ft2_font_map_set_resolution(PANGO_FT2_FONT_MAP(fontmap), 72, 72);
- ft2_context = pango_font_map_create_context(fontmap);
-#endif
-
- font_desc = pango_font_description_from_string(font_string);
- //pango_font_description_set_size(font_desc, 10 * PANGO_SCALE);
- pango_context_set_font_description(ft2_context, font_desc);
- pango_font_description_free(font_desc);
- // TODO fallback to fixed 8, courier new 8
-
- layout = pango_layout_new(ft2_context);
-
-#ifdef FONT_SIZE_WORKAROUND
- pango_layout_set_width(layout, -1); // -1 no wrapping. All text on one line.
- pango_layout_set_text(layout, "The quick brown fox jumped over the lazy sleeping dog's back then sat on a tack.", -1); // -1 null-terminated string.
-#endif
-
-#if !PANGO_VERSION_CHECK(1,22,0)
- PangoLayoutIter *iter;
- iter = pango_layout_get_iter(layout);
- font_ascent_pango_units = pango_layout_iter_get_baseline(iter);
- pango_layout_iter_free(iter);
-#else
- font_ascent_pango_units = pango_layout_get_baseline(layout);
-#endif
- pango_layout_get_extents(layout, NULL, &log_rect);
- g_object_unref(G_OBJECT(layout));
- font_descent_pango_units = log_rect.height - font_ascent_pango_units;
-
- font_ascent = PANGO_PIXELS_CEIL(font_ascent_pango_units);
- font_descent = PANGO_PIXELS_CEIL(font_descent_pango_units);
- font_height = font_ascent + font_descent;
- y_offset_bitmap_render_pango_units = (font_ascent * PANGO_SCALE) - font_ascent_pango_units;
- }
-
- virtual ~GLFontInternal()
- {
- g_object_unref(G_OBJECT(ft2_context));
- g_object_unref(G_OBJECT(fontmap));
- }
-
- // Renders the input text at the current location with the current color.
- // The X position of the current location is used to place the left edge of the text image,
- // where the text image bounds are defined as the logical extents of the line of text.
- // The Y position of the current location is used to place the bottom of the text image.
- // You should offset the Y position by the amount returned by gtk_glwidget_font_descent()
- // if you want to place the baseline of the text image at the current Y position.
- // Note: A problem with this function is that if the lower left corner of the text falls
- // just a hair outside of the viewport (meaning the current raster position is invalid),
- // then no text will be rendered. The solution to this is a very hacky one. You can search
- // Google for "glDrawPixels clipping".
- virtual void printString(const char *s)
- {
- // The idea for this code initially came from the font-pangoft2.c example that comes with GtkGLExt.
-
- PangoLayout *layout;
- PangoRectangle log_rect;
- FT_Bitmap bitmap;
- unsigned char *begin_bitmap_buffer;
- GLfloat color[4];
- GLint previous_unpack_alignment;
- GLboolean previous_blend_enabled;
- GLint previous_blend_func_src;
- GLint previous_blend_func_dst;
- GLfloat previous_red_bias;
- GLfloat previous_green_bias;
- GLfloat previous_blue_bias;
- GLfloat previous_alpha_scale;
-
- layout = pango_layout_new(ft2_context);
- pango_layout_set_width(layout, -1); // -1 no wrapping. All text on one line.
- pango_layout_set_text(layout, s, -1); // -1 null-terminated string.
- pango_layout_get_extents(layout, NULL, &log_rect);
-
- if (log_rect.width > 0 && log_rect.height > 0) {
- bitmap.rows = font_ascent + font_descent;
- bitmap.width = PANGO_PIXELS_CEIL(log_rect.width);
- bitmap.pitch = -bitmap.width; // Rendering it "upside down" for OpenGL.
- begin_bitmap_buffer = (unsigned char *) g_malloc(bitmap.rows * bitmap.width);
- memset(begin_bitmap_buffer, 0, bitmap.rows * bitmap.width);
- bitmap.buffer = begin_bitmap_buffer + (bitmap.rows - 1) * bitmap.width; // See pitch above.
- bitmap.num_grays = 0xff;
- bitmap.pixel_mode = FT_PIXEL_MODE_GRAY;
- pango_ft2_render_layout_subpixel(&bitmap, layout, -log_rect.x,
- y_offset_bitmap_render_pango_units);
- GlobalOpenGL().m_glGetFloatv(GL_CURRENT_COLOR, color);
-
- // Save state. I didn't see any OpenGL push/pop operations for these.
- // Question: Is saving/restoring this state necessary? Being safe.
- GlobalOpenGL().m_glGetIntegerv(GL_UNPACK_ALIGNMENT, &previous_unpack_alignment);
- previous_blend_enabled = GlobalOpenGL().m_glIsEnabled(GL_BLEND);
- GlobalOpenGL().m_glGetIntegerv(GL_BLEND_SRC, &previous_blend_func_src);
- GlobalOpenGL().m_glGetIntegerv(GL_BLEND_DST, &previous_blend_func_dst);
- GlobalOpenGL().m_glGetFloatv(GL_RED_BIAS, &previous_red_bias);
- GlobalOpenGL().m_glGetFloatv(GL_GREEN_BIAS, &previous_green_bias);
- GlobalOpenGL().m_glGetFloatv(GL_BLUE_BIAS, &previous_blue_bias);
- GlobalOpenGL().m_glGetFloatv(GL_ALPHA_SCALE, &previous_alpha_scale);
-
- GlobalOpenGL().m_glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
- GlobalOpenGL().m_glEnable(GL_BLEND);
- GlobalOpenGL().m_glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
- GlobalOpenGL().m_glPixelTransferf(GL_RED_BIAS, color[0]);
- GlobalOpenGL().m_glPixelTransferf(GL_GREEN_BIAS, color[1]);
- GlobalOpenGL().m_glPixelTransferf(GL_BLUE_BIAS, color[2]);
- GlobalOpenGL().m_glPixelTransferf(GL_ALPHA_SCALE, color[3]);
-
- GlobalOpenGL().m_glDrawPixels(bitmap.width, bitmap.rows,
- GL_ALPHA, GL_UNSIGNED_BYTE, begin_bitmap_buffer);
- g_free(begin_bitmap_buffer);
-
- // Restore state in reverse order of how we set it.
- GlobalOpenGL().m_glPixelTransferf(GL_ALPHA_SCALE, previous_alpha_scale);
- GlobalOpenGL().m_glPixelTransferf(GL_BLUE_BIAS, previous_blue_bias);
- GlobalOpenGL().m_glPixelTransferf(GL_GREEN_BIAS, previous_green_bias);
- GlobalOpenGL().m_glPixelTransferf(GL_RED_BIAS, previous_red_bias);
- GlobalOpenGL().m_glBlendFunc(previous_blend_func_src, previous_blend_func_dst);
- if (!previous_blend_enabled) { GlobalOpenGL().m_glDisable(GL_BLEND); }
- GlobalOpenGL().m_glPixelStorei(GL_UNPACK_ALIGNMENT, previous_unpack_alignment);
- }
-
- g_object_unref(G_OBJECT(layout));
- }
-
- virtual int getPixelAscent() const
- {
- return font_ascent;
- }
- virtual int getPixelDescent() const
- {
- return font_descent;
- }
- virtual int getPixelHeight() const
- {
- return font_height;
- }
-};
-
-GLFont *glfont_create(const char* font_string)
-{
- return new GLFontInternal(font_string);
-}
-
-#endif
projects / voretournament / voretournament.git / blobdiff