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/* QuesoGLC
* A free implementation of the OpenGL Character Renderer (GLC)
* Copyright (c) 2002, 2004-2008, Bertrand Coconnier
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* $Id: testrender.c 713 2008-01-26 20:10:13Z bcoconni $ */
/* Example of how to render text using the rendering styles defined in the
* GLC specs.
*/
#include "GL/glc.h"
#include <stdio.h>
#if defined __APPLE__ && defined __MACH__
#include <GLUT/glut.h>
#else
#include <GL/glut.h>
#endif
#include <stdlib.h>
#ifdef __WIN32__
/* Font face "Arial Regular" for Windows in order to make a regression test for
* bug #1856336.
*/
#define FAMILY "Arial"
#define FACE "Regular"
#else
#define FAMILY "Courier"
#define FACE "Italic"
#endif
void display(void)
{
GLfloat BitmapBoundingBox[8];
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glLoadIdentity();
glcRenderStyle(GLC_LINE);
glColor3f(0., 1., 0.);
glTranslatef(100., 50., 0.);
glRotatef(45., 0., 0., 1.);
glScalef(90., 90., 0.);
glcRenderChar('L');
glcRenderString("ine");
glLoadIdentity();
glcRenderStyle(GLC_TEXTURE);
glColor3f(0., 0., 1.);
glTranslatef(30., 150., 0.);
glScalef(90., 90., 0.);
glcRenderChar('T');
glcRenderString("exture");
glLoadIdentity();
glcRenderStyle(GLC_BITMAP);
glColor3f(1., 0., 0.);
glRasterPos2f(30., 200.);
glcLoadIdentity();
glcScale(90., 90.);
glcRotate(-10.);
glcRenderChar('B');
glcRenderString("itmap");
glcLoadIdentity();
glcMeasureString(GL_FALSE, "Bitmap");
glcGetStringMetric(GLC_BOUNDS, BitmapBoundingBox);
glTranslatef(30., 200., 0.);
glScalef(90., 90., 1.);
glRotatef(-10., 0., 0., 1.);
glBegin(GL_LINE_LOOP);
glVertex2fv(&(BitmapBoundingBox[0]));
glVertex2fv(&(BitmapBoundingBox[2]));
glVertex2fv(&(BitmapBoundingBox[4]));
glVertex2fv(&(BitmapBoundingBox[6]));
glEnd();
glLoadIdentity();
glcRenderStyle(GLC_TRIANGLE);
glColor3f(1., 1., 0.);
glTranslatef(30., 50., 0.);
glScalef(90., 90., 0.);
glcRenderString("Tr");
glcRenderStyle(GLC_LINE);
glcRenderChar('i');
glcRenderStyle(GLC_TRIANGLE);
glcRenderString("angle");
glFlush();
}
void reshape(int width, int height)
{
glClearColor(0., 0., 0., 0.);
glViewport(0, 0, width, height);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluOrtho2D(-0.325, width - 0.325, -0.325, height - 0.325);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glFlush();
}
void keyboard(unsigned char key, int x, int y)
{
GLint i = 0;
switch(key) {
case 27: /* Escape Key */
printf("Textures : %d\n", glcGeti(GLC_TEXTURE_OBJECT_COUNT));
for (i = 0; i < glcGeti(GLC_TEXTURE_OBJECT_COUNT); i++)
printf("Texture #%d : %d\n", i, glcGetListi(GLC_TEXTURE_OBJECT_LIST, i));
printf("Display Lists : %d\n", glcGeti(GLC_LIST_OBJECT_COUNT));
for (i = 0; i < glcGeti(GLC_LIST_OBJECT_COUNT); i++)
printf("Display List #%d : %d\n", i,
glcGetListi(GLC_LIST_OBJECT_LIST, i));
printf("Buffer Objects : %d\n", glcGeti(GLC_BUFFER_OBJECT_COUNT_QSO));
for (i = 0; i < glcGeti(GLC_BUFFER_OBJECT_COUNT_QSO); i++)
printf("Buffer Object #%d : %d\n", i,
glcGetListi(GLC_BUFFER_OBJECT_LIST_QSO, i));
glcDeleteGLObjects();
glcDeleteContext(glcGetCurrentContext());
glcContext(0);
exit(0);
default:
break;
}
}
int main(int argc, char **argv)
{
int ctx = 0;
int font = 0;
GLCenum error = 0;
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);
glutInitWindowSize(640, 480);
glutCreateWindow("QuesoGLC");
glutDisplayFunc(display);
glutReshapeFunc(reshape);
glutKeyboardFunc(keyboard);
glEnable(GL_TEXTURE_2D);
ctx = glcGenContext();
glcContext(ctx);
font = glcNewFontFromFamily(glcGenFontID(), FAMILY);
glcFont(font);
error = glcGetError();
glcFontFace(font, FACE);
#ifdef __WIN32__
/* Regression test for bug #1856336 */
error = glcGetError();
if (error == GLC_RESOURCE_ERROR) {
printf("Unable to select the font %s %s\n", FAMILY, FACE);
return -1;
}
#endif
glutMainLoop();
glcDeleteContext(ctx);
return 0;
}
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