From 797ea81d63e98949656b94aad43158327ad3a230 Mon Sep 17 00:00:00 2001
From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Fri, 14 Dec 2001 03:03:38 +0000
Subject: vertex program test program

---
 progs/tests/vptest2.c | 151 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 151 insertions(+)
 create mode 100644 progs/tests/vptest2.c

(limited to 'progs/tests/vptest2.c')

diff --git a/progs/tests/vptest2.c b/progs/tests/vptest2.c
new file mode 100644
index 0000000000..2158e07f04
--- /dev/null
+++ b/progs/tests/vptest2.c
@@ -0,0 +1,151 @@
+/* Test vertex state program execution */
+
+#include <assert.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+
+
+
+static void Display( void )
+{
+   glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
+   glPushMatrix();
+   glutSolidCube(2.0);
+   glPopMatrix();
+   glutSwapBuffers();
+}
+
+
+static void Reshape( int width, int height )
+{
+   glViewport( 0, 0, width, height );
+   glMatrixMode( GL_PROJECTION );
+   glLoadIdentity();
+   glFrustum( -1.0, 1.0, -1.0, 1.0, 5.0, 25.0 );
+   glMatrixMode( GL_MODELVIEW );
+   glLoadIdentity();
+   glTranslatef( 0.0, 0.0, -15.0 );
+}
+
+
+static void Key( unsigned char key, int x, int y )
+{
+   (void) x;
+   (void) y;
+   switch (key) {
+      case 27:
+         exit(0);
+         break;
+   }
+   glutPostRedisplay();
+}
+
+
+static void Test1( void )
+{
+   static const GLfloat p[4] = {9, 8, 7, 6};
+   GLfloat q[4];
+   /* test addition */
+   static const char *prog =
+      "!!VSP1.0\n"
+      "MOV R0, c[0];\n"
+      "MOV R1, c[1];\n"
+      "ADD  c[2], R0, R1;\n"
+      "END\n";
+
+   glLoadProgramNV(GL_VERTEX_STATE_PROGRAM_NV, 1,
+                   strlen(prog),
+                   (const GLubyte *) prog);
+   assert(glIsProgramNV(1));
+
+   glProgramParameter4fNV(GL_VERTEX_PROGRAM_NV, 0, 1, 2, 3, 4);
+   glProgramParameter4fNV(GL_VERTEX_PROGRAM_NV, 1, 10, 20, 30, 40);
+
+   glExecuteProgramNV(GL_VERTEX_STATE_PROGRAM_NV, 1, p);
+
+   glGetProgramParameterfvNV(GL_VERTEX_PROGRAM_NV, 2, GL_PROGRAM_PARAMETER_NV, q);
+   printf("Result c[2] = %g %g %g %g  (should be 11 22 33 44)\n",
+          q[0], q[1], q[2], q[3]);
+}
+
+
+static void Test2( void )
+{
+   static const GLfloat p[4] = {9, 8, 7, 6};
+   GLfloat q[4];
+   /* test swizzling */
+   static const char *prog =
+      "!!VSP1.0\n"
+      "MOV R0, c[0].wzyx;\n"
+      "MOV R1, c[1].wzyx;\n"
+      "ADD c[2], R0, R1;\n"
+      "END\n";
+
+   glLoadProgramNV(GL_VERTEX_STATE_PROGRAM_NV, 1,
+                   strlen(prog),
+                   (const GLubyte *) prog);
+   assert(glIsProgramNV(1));
+
+   glProgramParameter4fNV(GL_VERTEX_PROGRAM_NV, 0, 1, 2, 3, 4);
+   glProgramParameter4fNV(GL_VERTEX_PROGRAM_NV, 1, 10, 20, 30, 40);
+
+   glExecuteProgramNV(GL_VERTEX_STATE_PROGRAM_NV, 1, p);
+
+   glGetProgramParameterfvNV(GL_VERTEX_PROGRAM_NV, 2, GL_PROGRAM_PARAMETER_NV, q);
+   printf("Result c[2] = %g %g %g %g  (should be 44 33 22 11)\n",
+          q[0], q[1], q[2], q[3]);
+}
+
+
+static void Test3( void )
+{
+   static const GLfloat p[4] = {0, 0, 0, 0};
+   GLfloat q[4];
+   /* normalize vector */
+   static const char *prog =
+      "!!VSP1.0\n"
+      "# c[0] = (nx,ny,nz)\n"
+      "# R0.xyz = normalize(R1)\n"
+      "# R0.w   = 1/sqrt(nx*nx + ny*ny + nz*nz)\n"
+      "# c[2] = R0\n"
+      "DP3 R0.w, c[0], c[0];\n"
+      "RSQ R0.w, R0.w;\n"
+      "MUL R0.xyz, c[0], R0.w;\n"
+      "MOV c[2], R0;\n"
+      "END\n";
+
+   glLoadProgramNV(GL_VERTEX_STATE_PROGRAM_NV, 1,
+                   strlen(prog),
+                   (const GLubyte *) prog);
+   assert(glIsProgramNV(1));
+
+   glProgramParameter4fNV(GL_VERTEX_PROGRAM_NV, 0, 0, 10, 0, 0);
+
+   glExecuteProgramNV(GL_VERTEX_STATE_PROGRAM_NV, 1, p);
+
+   glGetProgramParameterfvNV(GL_VERTEX_PROGRAM_NV, 2, GL_PROGRAM_PARAMETER_NV, q);
+   printf("Result c[2] = %g %g %g %g  (should be 0, 1, 0, 0.1)\n",
+          q[0], q[1], q[2], q[3]);
+}
+
+
+int main( int argc, char *argv[] )
+{
+   glutInit( &argc, argv );
+   glutInitWindowPosition( 0, 0 );
+   glutInitWindowSize( 50, 50 );
+   glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH );
+   glutCreateWindow(argv[0]);
+   glutReshapeFunc( Reshape );
+   glutKeyboardFunc( Key );
+   glutDisplayFunc( Display );
+   Test1();
+   Test2();
+   Test3();
+   glutMainLoop();
+   return 0;
+}
-- 
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