Mesa (master): progs/trivial: add test for vertex program invarient transform

[Keith Whitwell]

Module: Mesa
Branch: master
Commit: 077c904b76542dbe01b20386733d3e9e8a49da0b
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=077c904b76542dbe01b20386733d3e9e8a49da0b

Author: Keith Whitwell <keithw at vmware.com>
Date:   Tue May  5 13:00:44 2009 +0100

progs/trivial: add test for vertex program invarient transform

---

 progs/trivial/Makefile           |    1 +
 progs/trivial/SConscript         |    1 +
 progs/trivial/vp-tri-invariant.c |  147 ++++++++++++++++++++++++++++++++++++++
 3 files changed, 149 insertions(+), 0 deletions(-)

diff --git a/progs/trivial/Makefile b/progs/trivial/Makefile
index 69b0408..22de83f 100644
--- a/progs/trivial/Makefile
+++ b/progs/trivial/Makefile
@@ -147,6 +147,7 @@ SOURCES = \
 	vp-clip.c \
 	vp-line-clip.c \
 	vp-tri.c \
+	vp-tri-invariant.c \
 	vp-tri-swap.c \
 	vp-tri-tex.c \
 	vp-tri-imm.c \
diff --git a/progs/trivial/SConscript b/progs/trivial/SConscript
index 03ccb14..9a1f357 100644
--- a/progs/trivial/SConscript
+++ b/progs/trivial/SConscript
@@ -143,6 +143,7 @@ progs = [
 	'vp-clip',
 	'vp-line-clip',
 	'vp-tri',
+	'vp-tri-invariant',
 	'vp-tri-swap',
 	'vp-tri-tex',
 	'vp-tri-imm',
diff --git a/progs/trivial/vp-tri-invariant.c b/progs/trivial/vp-tri-invariant.c
new file mode 100644
index 0000000..ff24139
--- /dev/null
+++ b/progs/trivial/vp-tri-invariant.c
@@ -0,0 +1,147 @@
+/* Test glGenProgramsNV(), glIsProgramNV(), glLoadProgramNV() */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <math.h>
+#include <GL/glew.h>
+#include <GL/glut.h>
+
+
+#define CI_OFFSET_1 16
+#define CI_OFFSET_2 32
+
+
+GLenum doubleBuffer;
+
+static void Init(void)
+{
+   GLint errno;
+   GLuint prognum;
+   
+   static const char *prog1 =
+      "!!ARBvp1.0\n"
+      "OPTION ARB_position_invariant ;"
+      "MOV  result.color, vertex.color;\n"
+      "END\n";
+
+
+   glGenProgramsARB(1, &prognum);
+
+   glBindProgramARB(GL_VERTEX_PROGRAM_ARB, prognum);
+   glProgramStringARB(GL_VERTEX_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
+		      strlen(prog1), (const GLubyte *) prog1);
+
+   errno = glGetError();
+   printf("glGetError = %d\n", errno);
+   if (errno != GL_NO_ERROR)
+   {
+      GLint errorpos;
+
+      glGetIntegerv(GL_PROGRAM_ERROR_POSITION_ARB, &errorpos);
+      printf("errorpos: %d\n", errorpos);
+      printf("%s\n", (char *)glGetString(GL_PROGRAM_ERROR_STRING_ARB));
+   }
+
+   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);
+}
+
+static void Reshape(int width, int height)
+{
+
+    glViewport(0, 0, (GLint)width, (GLint)height);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+/*     glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); */
+    glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+    switch (key) {
+      case 27:
+	exit(1);
+      default:
+	return;
+    }
+
+    glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+   glClear(GL_COLOR_BUFFER_BIT); 
+
+   glEnable(GL_VERTEX_PROGRAM_ARB);
+
+   glBegin(GL_TRIANGLES);
+   glColor3f(0,0,.7); 
+   glVertex3f( 0.9, -0.9, -0.0);
+   glColor3f(.8,0,0); 
+   glVertex3f( 0.9,  0.9, -0.0);
+   glColor3f(0,.9,0); 
+   glVertex3f(-0.9,  0.0, -0.0);
+   glEnd();
+
+   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 | GLUT_ALPHA;
+    type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE;
+    glutInitDisplayMode(type);
+
+    if (glutCreateWindow(*argv) == GL_FALSE) {
+	exit(1);
+    }
+
+    glewInit();
+    Init();
+
+    glutReshapeFunc(Reshape);
+    glutKeyboardFunc(Key);
+    glutDisplayFunc(Draw);
+    glutMainLoop();
+	return 0;
+}