kc3-lang/ftgl

diff --git a/.gitignore b/.gitignore
index 737aedf..60120ae 100644
--- a/.gitignore
+++ b/.gitignore
@@ -15,6 +15,7 @@ stamp-h1
 *.o
 *.lo
 *.la
+demo/c-demo
 demo/simple
 demo/FTGLDemo
 demo/FTGLMFontDemo
diff --git a/demo/Makefile.am b/demo/Makefile.am
index 21b7ef7..173dd90 100644
--- a/demo/Makefile.am
+++ b/demo/Makefile.am
@@ -1,6 +1,6 @@
 
 if HAVE_GLUT
-noinst_PROGRAMS = simple FTGLDemo FTGLMFontDemo
+noinst_PROGRAMS = simple c-demo FTGLDemo FTGLMFontDemo
 endif
 
 simple_SOURCES = \
@@ -11,6 +11,14 @@ simple_CXXFLAGS = $(FT2_CFLAGS) $(GL_CFLAGS)
 simple_LDFLAGS = $(FT2_LIBS) $(GLUT_LIBS)
 simple_LDADD = ../src/libftgl.la
 
+c_demo_SOURCES = \
+    c-demo.c \
+    $(NULL)
+c_demo_CPPFLAGS = -I$(top_srcdir)/src
+c_demo_CFLAGS = $(FT2_CFLAGS) $(GL_CFLAGS)
+c_demo_LDFLAGS = $(FT2_LIBS) $(GLUT_LIBS)
+c_demo_LDADD = ../src/libftgl.la
+
 FTGLDemo_SOURCES = \
 	FTGLDemo.cpp \
 	tb.c \
diff --git a/demo/c-demo.c b/demo/c-demo.c
new file mode 100644
index 0000000..7e359b7
--- /dev/null
+++ b/demo/c-demo.c
@@ -0,0 +1,148 @@
+/*
+ * c-demo.cpp - simple C demo for FTGL, the OpenGL font library
+ *
+ * Copyright (c) 2008 Sam Hocevar <sam@zoy.org>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "config.h"
+
+#include <math.h>
+
+#if defined HAVE_GL_GLUT_H
+#   include <GL/glut.h>
+#elif defined HAVE_GLUT_GLUT_H
+#   include <GLUT/glut.h>
+#else
+#   error GLUT headers not present
+#endif
+
+#include <FTGL/ftgl.h>
+
+static FTGLfont *font;
+
+/*
+ * Main OpenGL loop: set up lights, apply a few rotation effects, and
+ * render text using the current FTGL object.
+ */
+static void RenderScene(void)
+{
+    float n = (float)glutGet(GLUT_ELAPSED_TIME) / 10.;
+    float t1 = sin(n / 80);
+    float t2 = sin(n / 50 + 1);
+    float t3 = sin(n / 30 + 2);
+
+    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+    glEnable(GL_LIGHTING);
+    glEnable(GL_DEPTH_TEST);
+
+    glPushMatrix();
+        glTranslatef(-0.9, -0.2, -10.0);
+        float ambient[4]  = { (t1 + 2.0) / 3,
+                              (t2 + 2.0) / 3,
+                              (t3 + 2.0) / 3, 0.3 };
+        float diffuse[4]  = { 1.0, 0.9, 0.9, 1.0 };
+        float specular[4] = { 1.0, 0.7, 0.7, 1.0 };
+        float position[4] = { 100.0, 100.0, 0.0, 1.0 };
+        glLightfv(GL_LIGHT1, GL_AMBIENT,  ambient);
+        glLightfv(GL_LIGHT1, GL_DIFFUSE,  diffuse);
+        glLightfv(GL_LIGHT1, GL_SPECULAR, specular);
+        glLightfv(GL_LIGHT1, GL_POSITION, position);
+        glEnable(GL_LIGHT1);
+    glPopMatrix();
+
+    glPushMatrix();
+        float front_ambient[4]  = { 0.7, 0.7, 0.7, 0.0 };
+        glMaterialfv(GL_FRONT, GL_AMBIENT, front_ambient);
+        glColorMaterial(GL_FRONT, GL_DIFFUSE);
+        glTranslatef(0.0, 0.0, 20.0);
+        glRotatef(n / 1.11, 0.0, 1.0, 0.0);
+        glRotatef(n / 2.23, 1.0, 0.0, 0.0);
+        glRotatef(n / 3.17, 0.0, 0.0, 1.0);
+        glTranslatef(-260.0, -0.2, 0.0);
+        glColor3f(0.0, 0.0, 0.0);
+        ftglRenderFont(font, "Hello FTGL!", FTGL_RENDER_ALL);
+    glPopMatrix();
+
+    glutSwapBuffers();
+}
+
+/*
+ * GLUT key processing function: <esc> quits, <tab> cycles across fonts.
+ */
+static void ProcessKeys(unsigned char key, int x, int y)
+{
+    if(key == 27)
+    {
+        ftglDestroyFont(font);
+        exit(0);
+    }
+}
+
+/*
+ * Main program entry point: set up GLUT window, load fonts, run GLUT loop.
+ */
+int main(int argc, char **argv)
+{
+    if(argc < 2)
+    {
+        fprintf(stderr, "Usage: %s <font_name.ttf>\n", argv[0]);
+        return EXIT_FAILURE;
+    }
+
+    /* Initialise GLUT stuff */
+    glutInit(&argc, argv);
+    glutInitDisplayMode(GLUT_DEPTH | GLUT_DOUBLE | GLUT_RGBA);
+    glutInitWindowPosition(100, 100);
+    glutInitWindowSize(640, 480);
+    glutCreateWindow("FTGL simple demo");
+
+    glutDisplayFunc(RenderScene);
+    glutIdleFunc(RenderScene);
+    glutKeyboardFunc(ProcessKeys);
+
+    glMatrixMode (GL_PROJECTION);
+    glLoadIdentity ();
+    gluPerspective(90, 640.0f / 480.0f, 1, 1000);
+    glMatrixMode(GL_MODELVIEW);
+    glLoadIdentity();
+    gluLookAt(0.0, 0.0, 640.0f / 2.0f, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0);
+
+    /* Initialise FTGL stuff */
+    font = ftglCreateExtrudeFont(argv[1]);
+    if(!font)
+    {
+        fprintf(stderr, "%s: could not load font `%s'\n", argv[0], argv[1]);
+        return EXIT_FAILURE;
+    }
+
+    ftglSetFontFaceSize(font, 80, 72);
+    ftglSetFontDepth(font, 10);
+    ftglSetFontOutset(font, 0, 3);
+    ftglSetFontCharMap(font, ft_encoding_unicode);
+
+    /* Run GLUT loop */
+    glutMainLoop();
+
+    return EXIT_SUCCESS;
+}
+