X-Git-Url: http://de.git.xonotic.org/?a=blobdiff_plain;f=radiant%2Fglwidget.cpp;h=0820d78795be8efd1ee3c73373d50c7b12730fc2;hb=43e1ffa1c3fc294e955c1368573f50c60cb594de;hp=7a408f9e51cebec59999e9945eddf09d46fcfd95;hpb=dc4e125df26fcdb2423638bf3e9ffed6124ff266;p=xonotic%2Fnetradiant.git diff --git a/radiant/glwidget.cpp b/radiant/glwidget.cpp index 7a408f9e..0820d787 100644 --- a/radiant/glwidget.cpp +++ b/radiant/glwidget.cpp @@ -1,407 +1,52 @@ /* -Copyright (c) 2001, Loki software, inc. -All rights reserved. + Copyright (C) 2001-2006, William Joseph. + All Rights Reserved. -Redistribution and use in source and binary forms, with or without modification, -are permitted provided that the following conditions are met: + This file is part of GtkRadiant. -Redistributions of source code must retain the above copyright notice, this list -of conditions and the following disclaimer. + 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. -Redistributions in binary form must reproduce the above copyright notice, this -list of conditions and the following disclaimer in the documentation and/or -other materials provided with the distribution. + 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. -Neither the name of Loki software nor the names of its contributors may be used -to endorse or promote products derived from this software without specific prior -written permission. + 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 + */ -THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' -AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE -DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY -DIRECT,INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES -(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; -LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON -ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS -SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -*/ - -// OpenGL widget based on GtkGLExt - -#include "stdafx.h" - -#include -#include #include "glwidget.h" -#include "qgl.h" - -typedef int* attribs_t; -typedef const attribs_t* configs_iterator; - -int config_rgba32[] = { - GDK_GL_RGBA, - GDK_GL_DOUBLEBUFFER, - GDK_GL_RED_SIZE, 8, - GDK_GL_BLUE_SIZE, 8, - GDK_GL_GREEN_SIZE, 8, - GDK_GL_ALPHA_SIZE, 8, - GDK_GL_ATTRIB_LIST_NONE, -}; - -int config_rgba[] = { - GDK_GL_RGBA, - GDK_GL_DOUBLEBUFFER, - GDK_GL_RED_SIZE, 1, - GDK_GL_BLUE_SIZE, 1, - GDK_GL_GREEN_SIZE, 1, - GDK_GL_ALPHA_SIZE, 1, - GDK_GL_ATTRIB_LIST_NONE, -}; - -const attribs_t configs[] = { - config_rgba32, - config_rgba, -}; - -GdkGLConfig* glconfig_new() -{ - GdkGLConfig* glconfig = NULL; - - for(configs_iterator i = configs, end = configs + 2; i != end && glconfig == NULL; ++i) - { - glconfig = gdk_gl_config_new(*i); - } - - if(glconfig == NULL) - { - return gdk_gl_config_new_by_mode((GdkGLConfigMode)(GDK_GL_MODE_RGBA | GDK_GL_MODE_DOUBLE)); - } - - return glconfig; -} - -int config_rgba32_depth32[] = { - GDK_GL_RGBA, - GDK_GL_DOUBLEBUFFER, - GDK_GL_RED_SIZE, 8, - GDK_GL_BLUE_SIZE, 8, - GDK_GL_GREEN_SIZE, 8, - GDK_GL_ALPHA_SIZE, 8, - GDK_GL_DEPTH_SIZE, 32, - GDK_GL_ATTRIB_LIST_NONE, -}; - -int config_rgba32_depth24[] = { - GDK_GL_RGBA, - GDK_GL_DOUBLEBUFFER, - GDK_GL_RED_SIZE, 8, - GDK_GL_BLUE_SIZE, 8, - GDK_GL_GREEN_SIZE, 8, - GDK_GL_ALPHA_SIZE, 8, - GDK_GL_DEPTH_SIZE, 24, - GDK_GL_ATTRIB_LIST_NONE, -}; - -int config_rgba32_depth16[] = { - GDK_GL_RGBA, - GDK_GL_DOUBLEBUFFER, - GDK_GL_RED_SIZE, 8, - GDK_GL_BLUE_SIZE, 8, - GDK_GL_GREEN_SIZE, 8, - GDK_GL_ALPHA_SIZE, 8, - GDK_GL_DEPTH_SIZE, 16, - GDK_GL_ATTRIB_LIST_NONE, -}; - -int config_rgba32_depth[] = { - GDK_GL_RGBA, - GDK_GL_DOUBLEBUFFER, - GDK_GL_RED_SIZE, 8, - GDK_GL_BLUE_SIZE, 8, - GDK_GL_GREEN_SIZE, 8, - GDK_GL_ALPHA_SIZE, 8, - GDK_GL_DEPTH_SIZE, 1, - GDK_GL_ATTRIB_LIST_NONE, -}; - -int config_rgba_depth16[] = { - GDK_GL_RGBA, - GDK_GL_DOUBLEBUFFER, - GDK_GL_RED_SIZE, 1, - GDK_GL_BLUE_SIZE, 1, - GDK_GL_GREEN_SIZE, 1, - GDK_GL_ALPHA_SIZE, 1, - GDK_GL_DEPTH_SIZE, 16, - GDK_GL_ATTRIB_LIST_NONE, -}; - -int config_rgba_depth[] = { - GDK_GL_RGBA, - GDK_GL_DOUBLEBUFFER, - GDK_GL_RED_SIZE, 1, - GDK_GL_BLUE_SIZE, 1, - GDK_GL_GREEN_SIZE, 1, - GDK_GL_ALPHA_SIZE, 1, - GDK_GL_DEPTH_SIZE, 1, - GDK_GL_ATTRIB_LIST_NONE, -}; - -const attribs_t configs_with_depth[] = -{ - config_rgba32_depth32, - config_rgba32_depth24, - config_rgba32_depth16, - config_rgba32_depth, - config_rgba_depth16, - config_rgba_depth, -}; - -GdkGLConfig* glconfig_new_with_depth() -{ - GdkGLConfig* glconfig = NULL; - - for(configs_iterator i = configs_with_depth, end = configs_with_depth + 6; i != end && glconfig == NULL; ++i) - { - glconfig = gdk_gl_config_new(*i); - } - - if(glconfig == NULL) - { - return gdk_gl_config_new_by_mode((GdkGLConfigMode)(GDK_GL_MODE_RGBA | GDK_GL_MODE_DOUBLE | GDK_GL_MODE_DEPTH)); - } - - return glconfig; -} - -GtkWidget* WINAPI gtk_glwidget_new (gboolean zbuffer, GtkWidget* share) -{ - GtkWidget* drawing_area = gtk_drawing_area_new(); - GdkGLConfig* glconfig = (zbuffer) ? glconfig_new_with_depth() : glconfig_new(); - GdkGLContext* shared_context = (share) ? gtk_widget_get_gl_context(share) : NULL; - - gtk_widget_set_gl_capability (drawing_area, glconfig, shared_context, TRUE, GDK_GL_RGBA_TYPE); - - return drawing_area; -} - -void WINAPI gtk_glwidget_destroy_context (GtkWidget *widget) -{ -} - -void WINAPI gtk_glwidget_create_context (GtkWidget *widget) -{ -} - -void WINAPI gtk_glwidget_swap_buffers (GtkWidget *widget) -{ - GdkGLDrawable *gldrawable = gtk_widget_get_gl_drawable (widget); - gdk_gl_drawable_swap_buffers (gldrawable); -} - -gboolean WINAPI gtk_glwidget_make_current (GtkWidget *widget) -{ - GdkGLContext *glcontext = gtk_widget_get_gl_context (widget); - GdkGLDrawable *gldrawable = gtk_widget_get_gl_drawable (widget); - return gdk_gl_drawable_gl_begin (gldrawable, glcontext); -} - -// Think about rewriting this font stuff to use OpenGL display lists and glBitmap(). -// Bit maps together with display lists may offer a performance increase, but -// they would not allow antialiased fonts. -static const char font_string[] = "Monospace"; -static const int font_height = 10; -static int font_ascent = -1; -static int font_descent = -1; -static int y_offset_bitmap_render_pango_units = -1; -static PangoContext *ft2_context = NULL; -static int _debug_font_created = 0; +#include "igtkgl.h" +#include "modulesystem.h" +#include "gtkutil/glwidget.h" - -// Units are pixels. Returns a positive value [most likely]. -int gtk_glwidget_font_ascent() +class GtkGLAPI { - if (!_debug_font_created) { - Error("Programming error: gtk_glwidget_font_ascent() called but font does not exist; " - "you should have called gtk_glwidget_create_font() first"); - } - - return font_ascent; -} - -// Units are pixels. Returns a positive value [most likely]. -int gtk_glwidget_font_descent() -{ - if (!_debug_font_created) { - Error("Programming error: gtk_glwidget_font_descent() called but font does not exist; " - "you should have called gtk_glwidget_create_font() first"); - } - - return font_descent; -} - -void gtk_glwidget_create_font() -{ - PangoFontDescription *font_desc; - PangoLayout *layout; - PangoRectangle log_rect; - int font_ascent_pango_units; - int font_descent_pango_units; - - if (_debug_font_created) { - Error("Programming error: gtk_glwidget_create_font() was already called; " - "you must call gtk_glwidget_destroy_font() before creating font again"); - } - _debug_font_created = 1; - - // This call is deprecated so we'll have to fix it sometime. - ft2_context = pango_ft2_get_context(72, 72); - - font_desc = pango_font_description_from_string(font_string); - pango_font_description_set_size(font_desc, font_height * PANGO_SCALE); - pango_context_set_font_description(ft2_context, font_desc); - pango_font_description_free(font_desc); - - layout = pango_layout_new(ft2_context); - -#ifdef _WIN32 +_QERGtkGLTable m_gtkgl; +public: +typedef _QERGtkGLTable Type; +STRING_CONSTANT( Name, "*" ); - PangoLayoutIter *iter; - iter = pango_layout_get_iter(layout); - font_ascent_pango_units = pango_layout_iter_get_baseline(iter); - pango_layout_iter_free(iter); - -#else - - // I don't believe that's standard preprocessor syntax? -#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 - -#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); - y_offset_bitmap_render_pango_units = (font_ascent * PANGO_SCALE) - font_ascent_pango_units; +GtkGLAPI(){ + m_gtkgl.glwidget_new = &glwidget_new; + m_gtkgl.glwidget_swap_buffers = &glwidget_swap_buffers; + m_gtkgl.glwidget_make_current = &glwidget_make_current; + m_gtkgl.glwidget_destroy_context = &glwidget_destroy_context; + m_gtkgl.glwidget_create_context = &glwidget_create_context; } - -void gtk_glwidget_destroy_font() -{ - if (!_debug_font_created) { - Error("Programming error: gtk_glwidget_destroy_font() called when font " - "does not exist"); - } - - font_ascent = -1; - font_descent = -1; - y_offset_bitmap_render_pango_units = -1; - g_object_unref(G_OBJECT(ft2_context)); - _debug_font_created = 0; +_QERGtkGLTable* getTable(){ + return &m_gtkgl; } +}; +#include "modulesystem/singletonmodule.h" +#include "modulesystem/moduleregistry.h" -// 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". -void gtk_glwidget_print_string(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; - - if (!_debug_font_created) { - Error("Programming error: gtk_glwidget_print_string() called but font does not exist; " - "you should have called gtk_glwidget_create_font() first"); - } - - 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); - qglGetFloatv(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. - qglGetIntegerv(GL_UNPACK_ALIGNMENT, &previous_unpack_alignment); - previous_blend_enabled = qglIsEnabled(GL_BLEND); - qglGetIntegerv(GL_BLEND_SRC, &previous_blend_func_src); - qglGetIntegerv(GL_BLEND_DST, &previous_blend_func_dst); - qglGetFloatv(GL_RED_BIAS, &previous_red_bias); - qglGetFloatv(GL_GREEN_BIAS, &previous_green_bias); - qglGetFloatv(GL_BLUE_BIAS, &previous_blue_bias); - qglGetFloatv(GL_ALPHA_SCALE, &previous_alpha_scale); - - qglPixelStorei(GL_UNPACK_ALIGNMENT, 1); - qglEnable(GL_BLEND); - qglBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); - qglPixelTransferf(GL_RED_BIAS, color[0]); - qglPixelTransferf(GL_GREEN_BIAS, color[1]); - qglPixelTransferf(GL_BLUE_BIAS, color[2]); - qglPixelTransferf(GL_ALPHA_SCALE, color[3]); - - qglDrawPixels(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. - qglPixelTransferf(GL_ALPHA_SCALE, previous_alpha_scale); - qglPixelTransferf(GL_BLUE_BIAS, previous_blue_bias); - qglPixelTransferf(GL_GREEN_BIAS, previous_green_bias); - qglPixelTransferf(GL_RED_BIAS, previous_red_bias); - qglBlendFunc(previous_blend_func_src, previous_blend_func_dst); - if (!previous_blend_enabled) { qglDisable(GL_BLEND); } - qglPixelStorei(GL_UNPACK_ALIGNMENT, previous_unpack_alignment); - } - - g_object_unref(G_OBJECT(layout)); -} - -void gtk_glwidget_print_char(char s) -{ - char str[2]; - str[0] = s; - str[1] = '\0'; - gtk_glwidget_print_string(str); -} +typedef SingletonModule GtkGLModule; +typedef Static StaticGtkGLModule; +StaticRegisterModule staticRegisterGtkGL( StaticGtkGLModule::instance() );