From 4fc647c3976e3bc7d0352d49e983f9dc08689a00 Mon Sep 17 00:00:00 2001
From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Tue, 14 Jan 2003 22:50:02 +0000
Subject: simple GL_NV_fragment_program test

---
 progs/tests/fptest1.c | 150 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 150 insertions(+)
 create mode 100644 progs/tests/fptest1.c

(limited to 'progs')

diff --git a/progs/tests/fptest1.c b/progs/tests/fptest1.c
new file mode 100644
index 0000000000..85a3fadbbc
--- /dev/null
+++ b/progs/tests/fptest1.c
@@ -0,0 +1,150 @@
+/* Test GL_NV_fragment_program */
+
+#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();
+
+   glColor4f(0, 0.5, 0, 1);
+   glBegin(GL_POLYGON);
+   glVertex2f(-1, -1);
+   glVertex2f( 1, -1);
+   glVertex2f( 0,  1);
+   glEnd();
+
+   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 Init( void )
+{
+   static const char *prog1 =
+      "!!FP1.0\n"
+      "MUL   o[COLR], R0, f[WPOS]; \n"
+      "ADD   o[COLH], H3, f[TEX0]; \n"
+      "ADD_SAT o[COLH], H3, f[TEX0]; \n"
+      "ADDX o[COLH], H3, f[TEX0]; \n"
+      "ADDHC o[COLH], H3, f[TEX0]; \n"
+      "ADDXC o[COLH], H3, f[TEX0]; \n"
+      "ADDXC_SAT o[COLH], H30, f[TEX0]; \n"
+      "MUL   o[COLR].xy, R0.wzyx, f[WPOS]; \n"
+      "MUL   o[COLR], H0, f[WPOS]; \n"
+      "MUL   o[COLR], -H0, f[WPOS]; \n"
+      "MOV   RC, H1; \n"
+      "MOV   HC, H2; \n"
+      ;
+
+   /* masked updates */
+   static const char *prog2 =
+      "!!FP1.0\n"
+      "DEFINE foo = {1, 2, 3, 4}; \n"
+      "DEFINE foo2 = 5; \n"
+      "DECLARE foo = {5, 6, 7, 8}; \n"
+      "DECLARE bar = 3; \n"
+      "DECLARE bar2; \n"
+      "DECLARE bar3 = bar; \n"
+      "DECLARE bar4 = { a, b, c, d }; \n"
+      "MOV o[COLR],      R0; \n"
+      "MOV o[COLR].xy,   R0; \n"
+      "MOV o[COLR] (NE), R0; \n"
+      "MOV o[COLR] (NE.wzyx), R0; \n"
+      "MOV o[COLR].xy (NE.wzyx), R0; \n"
+      "KIL NE; \n"
+      "KIL EQ.xyxy; \n"
+      ;
+
+   /* double the color */
+   static const char *prog3 =
+      "!!FP1.0\n"
+      "MOV R0, f[COL0]; \n"
+      "ADD o[COLR], R0, f[COL0]; \n"
+      ;
+
+   GLuint progs[20];
+
+   glGenProgramsNV(20, progs);
+   assert(progs[0]);
+   assert(progs[1]);
+   assert(progs[0] != progs[1]);
+
+   glGenProgramsNV(3, progs + 2);
+   assert(progs[2]);
+   assert(progs[3]);
+   assert(progs[2] != progs[3]);
+   assert(progs[0] != progs[2]);
+
+   glLoadProgramNV(GL_FRAGMENT_PROGRAM_NV, progs[0],
+                   strlen(prog1),
+                   (const GLubyte *) prog1);
+   assert(glIsProgramNV(progs[0]));
+
+   glLoadProgramNV(GL_FRAGMENT_PROGRAM_NV, progs[1],
+                   strlen(prog2),
+                   (const GLubyte *) prog2);
+   assert(glIsProgramNV(progs[1]));
+
+   glLoadProgramNV(GL_FRAGMENT_PROGRAM_NV, progs[2],
+                   strlen(prog2),
+                   (const GLubyte *) prog3);
+   assert(glIsProgramNV(progs[2]));
+   glBindProgramNV(GL_FRAGMENT_PROGRAM_NV, progs[2]);
+   glEnable(GL_FRAGMENT_PROGRAM_NV);
+   glEnable(GL_ALPHA_TEST);
+   glAlphaFunc(GL_ALWAYS, 0.0);
+
+   printf("glGetError = %d\n", (int) glGetError());
+}
+
+
+int main( int argc, char *argv[] )
+{
+   glutInit( &argc, argv );
+   glutInitWindowPosition( 0, 0 );
+   glutInitWindowSize( 250, 250 );
+   glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH );
+   glutCreateWindow(argv[0]);
+   glutReshapeFunc( Reshape );
+   glutKeyboardFunc( Key );
+   glutDisplayFunc( Display );
+   Init();
+   glutMainLoop();
+   return 0;
+}
-- 
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