Mercurial > mxe-octave
view src/gtkglext-test.c @ 4538:979f5b397e51
maint: update PKG_UPDATE targets
* src/boost.mk: update UPDATE target, use https
* src/cmake.mk: add usable UPDATE target
* src/double-conversion.mk: add usable UPDATE target
* src/dri2proto.mk: add PKG_UPDATE
* src/exiv2.mk: update UPDATE for archives
* src/fribidi.mk: update UPDATE for github
* src/glproto.mk: add PKG_UPDATE
* src/glu.mk: add PKG_UPDATE
* src/levmar.mk: add user-agent to UPDATE
* src/libarchive.mk: update UPDATE for website
* src/libass.mk: update UPDATE for github
* src/libdrm.mk: add PKG_UPDATE
* src/libffi.mk: update for webpage changes
* src/libgee.mk: update for gnome page changes
* src/libgsf.mk: update for gnome page changes
* src/libidn2.mk: correct PKG_UPDATE
author | John D |
---|---|
date | Tue, 21 Nov 2017 12:03:47 -0500 |
parents | 99516e73b368 |
children |
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/* * This file is part of MXE. * See index.html for further information. */ #include <gtk/gtk.h> #include <gtk/gtkgl.h> #include <GL/gl.h> static gboolean eventExpose(GtkWidget *gl, GdkEventExpose *e, gpointer userData) { GdkGLContext *ctx = gtk_widget_get_gl_context(gl); GdkGLDrawable *drawable = gtk_widget_get_gl_drawable(gl); (void)e; (void)userData; gdk_gl_drawable_gl_begin(drawable, ctx); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); if (!gdk_gl_drawable_is_double_buffered(drawable)) glFinish(); else gdk_gl_drawable_swap_buffers(drawable); gdk_gl_drawable_gl_end(drawable); return TRUE; } static gboolean eventConfigure(GtkWidget *gl, GdkEventConfigure *e, gpointer userData) { const guint width = gl->allocation.width; const guint height = gl->allocation.height; (void)e; (void)userData; glLoadIdentity(); glViewport(0, 0, width, height); glOrtho(-3.5, 3.5, -3.5 * (GLfloat)height / (GLfloat)width, 3.5 * (GLfloat)height / (GLfloat)width, -3.5, 3.5); return TRUE; } int main(int argc, char *argv[]) { GtkWidget* window; GtkWidget* gl; GdkGLConfig* glConfig; gtk_init(&argc, &argv); gtk_gl_init(&argc, &argv); window = gtk_window_new(GTK_WINDOW_TOPLEVEL); gl = gtk_drawing_area_new(); gtk_container_add(GTK_CONTAINER(window), gl); gtk_widget_set_events(gl, GDK_EXPOSURE_MASK); glConfig = gdk_gl_config_new_by_mode( GDK_GL_MODE_RGB | GDK_GL_MODE_ALPHA | GDK_GL_MODE_DEPTH | GDK_GL_MODE_DOUBLE); gtk_widget_set_gl_capability(gl, glConfig, NULL, TRUE, GDK_GL_RGBA_TYPE); g_signal_connect_swapped( G_OBJECT(window), "destroy", G_CALLBACK(gtk_main_quit), G_OBJECT(window)); g_signal_connect( G_OBJECT(window), "destroy", G_CALLBACK(gtk_main_quit), NULL); g_signal_connect(gl, "configure-event", G_CALLBACK(eventConfigure), NULL); g_signal_connect(gl, "expose-event", G_CALLBACK(eventExpose), NULL); gtk_widget_show_all(window); gtk_main(); return 0; }