Remove demos that have moved to git+ssh://git.freedesktop.org/git/mesa/demos.

[mesa.git] / progs / tests / persp_hint.c

diff --git a/progs/tests/persp_hint.c b/progs/tests/persp_hint.c
deleted file mode 100644 (file)
index 27140d1..0000000
--- a/progs/tests/persp_hint.c
+++ /dev/null
@@ -1,149 +0,0 @@
-/*
- * Test the GL_PERSPECTIVE_CORRECTION_HINT setting and its effect on
- * color interpolation.
- *
- * Press 'i' to toggle between GL_NICEST/GL_FASTEST/GL_DONT_CARE.
- *
- * Depending on the driver, the hint may make a difference, or not.
- */
-
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <GL/glut.h>
-
-
-static GLenum PerspHint = GL_DONT_CARE;
-
-
-static void
-init(void)
-{
-   GLubyte image[256][256][4];
-   GLuint i, j;
-   for (i = 0; i < 256; i++) {
-      for (j = 0; j < 256; j++) {
-         image[i][j][0] = j;
-         image[i][j][1] = j;
-         image[i][j][2] = j;
-         image[i][j][3] = 255;
-      }
-   }
-   glTexImage2D(GL_TEXTURE_2D, 0, 4, 256, 256, 0,
-                GL_RGBA, GL_UNSIGNED_BYTE, image);
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
-   glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
-
-   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
-}
-
-
-static void
-display(void)
-{
-   switch (PerspHint) {
-   case GL_NICEST:
-      printf("hint = GL_NICEST\n");
-      break;
-   case GL_FASTEST:
-      printf("hint = GL_FASTEST\n");
-      break;
-   case GL_DONT_CARE:
-      printf("hint = GL_DONT_CARE\n");
-      break;
-   default:
-      ;
-   }
-
-   glClear(GL_COLOR_BUFFER_BIT);
-
-#if 1
-   glBegin(GL_QUADS);
-   /* exercise perspective interpolation */
-   glColor3f(0.0, 0.0, 0.0); glVertex3f(-1.0, -1.0, -1.0);
-   glColor3f(0.0, 0.0, 0.0); glVertex3f(-1.0, 1.0, -1.0);
-   glColor3f(0.0, 1.0, 0.0); glVertex3f( 7.0, 1.0, -7.0);
-   glColor3f(0.0, 1.0, 0.0); glVertex3f( 7.0, -1.0, -7.0);
-
-   /* stripe of linear interpolation */
-   glColor3f(0.0, 0.0, 0.0); glVertex3f(-1.0, -0.1, -1.001);
-   glColor3f(0.0, 0.0, 0.0); glVertex3f(-1.0,  0.1, -1.001);
-   glColor3f(0.0, 1.0, 0.0); glVertex3f( 1.0,  0.1, -1.001);
-   glColor3f(0.0, 1.0, 0.0); glVertex3f( 1.0, -0.1, -1.001);
-   glEnd();
-#else
-   glEnable(GL_TEXTURE_2D);
-   glBegin(GL_QUADS);
-   glTexCoord2f(0.0, 0.0); glVertex3f(-1.0, 0.0, -1.0);
-   glTexCoord2f(0.0, 1.0); glVertex3f(-1.0, 1.0, -1.0);
-   glTexCoord2f(1.0, 1.0); glVertex3f( 5.0, 1.0, -7.0);
-   glTexCoord2f(1.0, 0.0); glVertex3f( 5.0, 0.0, -7.0);
-
-   glTexCoord2f(0.0, 0.0); glVertex3f(-1.0, -1.0, -1.001);
-   glTexCoord2f(0.0, 1.0); glVertex3f(-1.0, 0.0, -1.001);
-   glTexCoord2f(1.0, 1.0); glVertex3f( 1.0, 0.0, -1.001);
-   glTexCoord2f(1.0, 0.0); glVertex3f( 1.0, -1.0, -1.001);
-   glEnd();
-#endif
-
-   glFlush();
-}
-
-
-static void
-reshape(int w, int h)
-{
-   glViewport(0, 0, w, h);
-   glMatrixMode(GL_PROJECTION);
-   glLoadIdentity();
-   gluPerspective(90.0, (GLfloat) w / h, 1.0, 300.0);
-   glMatrixMode(GL_MODELVIEW);
-   glLoadIdentity();
-}
-
-
-static void
-key(unsigned char k, int x, int y)
-{
-   switch (k) {
-   case 27:  /* Escape */
-      exit(0);
-      break;
-   case 'i':
-      if (PerspHint == GL_FASTEST)
-         PerspHint = GL_NICEST;
-      else if (PerspHint == GL_NICEST)
-         PerspHint = GL_DONT_CARE;
-      else
-         PerspHint = GL_FASTEST;
-      glHint(GL_PERSPECTIVE_CORRECTION_HINT, PerspHint);
-      break;
-   default:
-      return;
-   }
-   glutPostRedisplay();
-}
-
-
-int
-main(int argc, char** argv)
-{
-    glutInit(&argc, argv);
-    glutInitDisplayMode (GLUT_SINGLE | GLUT_RGB);
-    glutInitWindowSize (500, 500);
-    glutCreateWindow (argv[0]);
-    glutReshapeFunc (reshape);
-    glutDisplayFunc(display);
-    glutKeyboardFunc(key);
-
-    printf("Main quad: perspective projection\n");
-    printf("Middle stripe: linear interpolation\n");
-    printf("Press 'i' to toggle interpolation hint\n");
-    init();
-
-    glutMainLoop();
-    return 0;
-}