Demos (master): trivial: added tri-tex-1d.c test

[Brian Paul]

Module: Demos
Branch: master
Commit: d329dcc57c7681fdf5854419f469ef5109024630
URL:    http://cgit.freedesktop.org/mesa/demos/commit/?id=d329dcc57c7681fdf5854419f469ef5109024630

Author: Brian Paul <brianp at vmware.com>
Date:   Tue Sep 14 15:09:23 2010 -0600

trivial: added tri-tex-1d.c test

---

 src/trivial/Makefile.am  |    1 +
 src/trivial/tri-tex-1d.c |  185 ++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 186 insertions(+), 0 deletions(-)

diff --git a/src/trivial/Makefile.am b/src/trivial/Makefile.am
index b9e67a5..ec87c45 100644
--- a/src/trivial/Makefile.am
+++ b/src/trivial/Makefile.am
@@ -156,6 +156,7 @@ bin_PROGRAMS = \
 	tristrip \
 	tristrip-clip \
 	tristrip-flat \
+	tri-tex-1d \
 	tri-tex-3d \
 	tri-tex \
 	tri-tri \
diff --git a/src/trivial/tri-tex-1d.c b/src/trivial/tri-tex-1d.c
new file mode 100644
index 0000000..5a8a23c
--- /dev/null
+++ b/src/trivial/tri-tex-1d.c
@@ -0,0 +1,185 @@
+/*
+ * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and
+ * its documentation for any purpose is hereby granted without fee, provided
+ * that (i) the above copyright notices and this permission notice appear in
+ * all copies of the software and related documentation, and (ii) the name of
+ * Silicon Graphics may not be used in any advertising or
+ * publicity relating to the software without the specific, prior written
+ * permission of Silicon Graphics.
+ *
+ * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF
+ * ANY KIND,
+ * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
+ * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR
+ * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
+ * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+ * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
+ * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <GL/glut.h>
+
+static GLenum Target = GL_TEXTURE_1D;
+static GLenum Filter = GL_NEAREST;
+GLenum doubleBuffer;
+static float Rot = 0;
+static int win = 0;
+
+static void Init(void)
+{
+   fprintf(stderr, "GL_RENDERER   = %s\n", (char *) glGetString(GL_RENDERER));
+   fprintf(stderr, "GL_VERSION    = %s\n", (char *) glGetString(GL_VERSION));
+   fprintf(stderr, "GL_VENDOR     = %s\n", (char *) glGetString(GL_VENDOR));
+   fflush(stderr);
+
+   glClearColor(0.0, 0.0, 1.0, 0.0);
+
+#define SIZE 256
+   {
+      GLubyte tex1d[SIZE][4];
+      GLint s;
+
+      for (s = 0; s < SIZE; s++) {
+         tex1d[s][0] = 255-s;
+         tex1d[s][1] = s;
+         tex1d[s][2] = 0;
+         tex1d[s][3] = 255;
+      }
+
+      glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+
+      glTexImage1D(Target, 0, 4, SIZE, 0, GL_RGBA, GL_UNSIGNED_BYTE, tex1d);
+
+      glEnable(Target);
+      glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
+      glTexParameterf(Target, GL_TEXTURE_WRAP_R, GL_REPEAT);
+
+      glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
+   }
+}
+
+static void Reshape(int width, int height)
+{
+   glViewport(0, 0, (GLint)width, (GLint)height);
+   glMatrixMode(GL_PROJECTION);
+   glLoadIdentity();
+#if 0
+   glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+#else
+   glFrustum(-1, 1, -1, 1, 10, 20);
+#endif
+   glMatrixMode(GL_MODELVIEW);
+   glLoadIdentity();
+   glTranslatef(0, 0, -15);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+   switch (key) {
+   case 'r':
+      Rot += 10.0;
+      break;
+   case 'R':
+      Rot -= 10.0;
+      break;
+   case 'f':
+      if (Filter == GL_NEAREST)
+         Filter = GL_LINEAR;
+      else
+         Filter = GL_NEAREST;
+      break;
+   case 27:
+      glutDestroyWindow(win);
+      exit(0);
+   default:
+      return;
+   }
+   glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+   glTexParameterf(Target, GL_TEXTURE_MIN_FILTER, Filter);
+   glTexParameterf(Target, GL_TEXTURE_MAG_FILTER, Filter);
+
+   glClear(GL_COLOR_BUFFER_BIT); 
+
+   glPushMatrix();
+   glRotatef(Rot, 0, 1, 0);
+
+   glBegin(GL_QUADS);
+   glTexCoord2f(1,0); 
+   glVertex3f( 0.9, -0.9, 0.0);
+   glTexCoord2f(1,1); 
+   glVertex3f( 0.9,  0.9, 0.0);
+   glTexCoord2f(0,1); 
+   glVertex3f(-0.9,  0.9, 0.0);
+   glTexCoord2f(0,0); 
+   glVertex3f(-0.9,  -0.9, 0.0);
+   glEnd();
+
+   glPopMatrix();
+
+   glFlush();
+
+   if (doubleBuffer) {
+      glutSwapBuffers();
+   }
+}
+
+static GLenum Args(int argc, char **argv)
+{
+    GLint i;
+
+    doubleBuffer = GL_FALSE;
+
+    for (i = 1; i < argc; i++) {
+        if (strcmp(argv[i], "-sb") == 0) {
+	    doubleBuffer = GL_FALSE;
+	} else if (strcmp(argv[i], "-db") == 0) {
+	    doubleBuffer = GL_TRUE;
+	} else {
+	    fprintf(stderr, "%s (Bad option).\n", argv[i]);
+	    return GL_FALSE;
+	}
+    }
+    return GL_TRUE;
+}
+
+int main(int argc, char **argv)
+{
+    GLenum type;
+
+    glutInit(&argc, argv);
+
+    if (Args(argc, argv) == GL_FALSE) {
+	exit(1);
+    }
+
+    glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
+
+    type = GLUT_RGB;
+    type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE;
+    glutInitDisplayMode(type);
+
+    win = glutCreateWindow(*argv);
+    if (!win) {
+	exit(1);
+    }
+
+    Init();
+
+    glutReshapeFunc(Reshape);
+    glutKeyboardFunc(Key);
+    glutDisplayFunc(Draw);
+    glutMainLoop();
+    return 0;
+}