diff options
Diffstat (limited to 'intern/cycles/util/util_view.cpp')
| -rw-r--r-- | intern/cycles/util/util_view.cpp | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/intern/cycles/util/util_view.cpp b/intern/cycles/util/util_view.cpp new file mode 100644 index 00000000000..0b311b0331a --- /dev/null +++ b/intern/cycles/util/util_view.cpp @@ -0,0 +1,195 @@ +/* + * Copyright 2011, Blender Foundation. + * + * This program 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. + * + * This program 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 this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include "util_opengl.h" +#include "util_time.h" +#include "util_view.h" + +#ifdef __APPLE__ +#include <GLUT/glut.h> +#else +#include <GL/glut.h> +#endif + +CCL_NAMESPACE_BEGIN + +/* structs */ + +struct View { + ViewInitFunc initf; + ViewExitFunc exitf; + ViewResizeFunc resize; + ViewDisplayFunc display; + ViewKeyboardFunc keyboard; + + bool first_display; + bool redraw; + + int width, height; +} V; + +/* public */ + +static void view_display_text(int x, int y, const char *text) +{ + const char *c; + + glRasterPos3f(x, y, 0); + + for(c=text; *c != '\0'; c++) + glutBitmapCharacter(GLUT_BITMAP_HELVETICA_10, *c); +} + +void view_display_info(const char *info) +{ + const int height = 20; + + glEnable(GL_BLEND); + glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); + glColor4f(0.1f, 0.1f, 0.1f, 0.8f); + glRectf(0.0f, V.height - height, V.width, V.height); + glDisable(GL_BLEND); + + glColor3f(0.5f, 0.5f, 0.5f); + + view_display_text(10, 7 + V.height - height, info); + + glColor3f(1.0f, 1.0f, 1.0f); +} + +static void view_display() +{ + if(V.first_display) { + if(V.initf) V.initf(); + if(V.exitf) atexit(V.exitf); + + V.first_display = false; + } + + glClearColor(0.05f, 0.05f, 0.05f, 0.0f); + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + gluOrtho2D(0, V.width, 0, V.height); + + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); + + glRasterPos3f(0, 0, 0); + + if(V.display) + V.display(); + + glutSwapBuffers(); +} + +static void view_reshape(int width, int height) +{ + if(width <= 0 || height <= 0) + return; + + V.width = width; + V.height = height; + + glViewport(0, 0, width, height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); + + if(V.resize) + V.resize(width, height); +} + +static void view_keyboard(unsigned char key, int x, int y) +{ + if(V.keyboard) + V.keyboard(key); + + if(key == 'm') + printf("mouse %d %d\n", x, y); + if(key == 'q') { + if(V.exitf) V.exitf(); + exit(0); + } +} + +void view_idle() +{ + if(V.redraw) { + V.redraw = false; + glutPostRedisplay(); + } + + time_sleep(0.1f); +} + +void view_main_loop(const char *title, int width, int height, + ViewInitFunc initf, ViewExitFunc exitf, + ViewResizeFunc resize, ViewDisplayFunc display, + ViewKeyboardFunc keyboard) +{ + const char *name = "app"; + char *argv = (char*)name; + int argc = 1; + + memset(&V, 0, sizeof(V)); + V.width = width; + V.height = height; + V.first_display = true; + V.redraw = false; + V.initf = initf; + V.exitf = exitf; + V.resize = resize; + V.display = display; + V.keyboard = keyboard; + + glutInit(&argc, &argv); + glutInitWindowSize(width, height); + glutInitWindowPosition(0, 0); + glutInitDisplayMode(GLUT_RGB|GLUT_DOUBLE|GLUT_DEPTH); + glutCreateWindow(title); + +#ifndef __APPLE__ + glewInit(); +#endif + + view_reshape(width, height); + + glutDisplayFunc(view_display); + glutIdleFunc(view_idle); + glutReshapeFunc(view_reshape); + glutKeyboardFunc(view_keyboard); + + glutMainLoop(); +} + +void view_redraw() +{ + V.redraw = true; +} + +CCL_NAMESPACE_END + |