Simple test of glInterleavedArrays functionality.

2 files changed, 366 insertions, 0 deletions

diff --git a/progs/tests/Makefile b/progs/tests/Makefile
index 3143b2a6c2..76cd5e27da 100644
--- a/progs/tests/Makefile
+++ b/progs/tests/Makefile
@@ -35,6 +35,7 @@ SOURCES = antialias.c \
 	fptest1.c \
 	fptexture.c \
 	getprocaddress.c \
+	interleave.c \
 	invert.c \
 	manytex.c \
 	multipal.c \
diff --git a/progs/tests/interleave.c b/progs/tests/interleave.c
new file mode 100644
index 0000000000..73da4341c2
--- /dev/null
+++ b/progs/tests/interleave.c
@@ -0,0 +1,365 @@
+/*
+ * (C) Copyright IBM Corporation 2005
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
+ * VA LINUX SYSTEM, IBM AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file interleave.c
+ * 
+ * Simple test of glInterleavedArrays functionality.  For each mode, two
+ * meshes are drawn.  One is drawn using interleaved arrays and the othe is
+ * drawn using immediate mode.  Both should look identical.
+ *
+ * \author Ian Romanick <idr@us.ibm.com>
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <GL/glut.h>
+
+static int Width = 400;
+static int Height = 300;
+static const GLfloat Near = 5.0, Far = 25.0;
+
+static const GLfloat t[][4] = {
+   { 0.5,  0.0, 0.0, 1.0 },
+
+   { 0.25, 0.5, 0.0, 1.0 },
+   { 0.75, 0.5, 0.0, 1.0 },
+
+   { 0.0,  1.0, 0.0, 1.0 },
+   { 0.5,  1.0, 0.0, 1.0 },
+   { 1.0,  1.0, 0.0, 1.0 },
+};
+
+static const GLfloat c_f[][4] = {
+   { 1.0, 0.0, 0.0, 1.0 },
+
+   { 0.0, 1.0, 0.0, 1.0 },
+   { 0.0, 1.0, 0.0, 1.0 },
+
+   { 0.0, 0.0, 1.0, 1.0 },
+   { 1.0, 0.0, 1.0, 1.0 },
+   { 0.0, 0.0, 1.0, 1.0 },
+};
+
+static const GLubyte c_ub[][4] = {
+   { 0xff, 0x00, 0x00, 0xff },
+
+   { 0x00, 0xff, 0x00, 0xff },
+   { 0x00, 0xff, 0x00, 0xff },
+
+   { 0x00, 0x00, 0xff, 0xff },
+   { 0xff, 0x00, 0xff, 0xff },
+   { 0x00, 0x00, 0xff, 0xff },
+};
+
+static const GLfloat n[][3] = {
+   { 0.0, 0.0, -1.0 },
+
+   { 0.0, 0.0, -1.0 },
+   { 0.0, 0.0, -1.0 },
+
+   { 0.0, 0.0, -1.0 },
+   { 0.0, 0.0, -1.0 },
+   { 0.0, 0.0, -1.0 },
+};
+
+static const GLfloat v[][4] = {
+   {  0.0,  1.0, 0.0, 1.0, },
+
+   { -0.5,  0.0, 0.0, 1.0, },
+   {  0.5,  0.0, 0.0, 1.0, },
+
+   { -1.0, -1.0, 0.0, 1.0, },
+   {  0.0, -1.0, 0.0, 1.0, },
+   {  1.0, -1.0, 0.0, 1.0, },
+};
+   
+static const unsigned indicies[12] = {
+   0, 1, 2,
+   1, 3, 4,
+   2, 4, 5,
+   1, 4, 2
+};
+
+#define NONE  { NULL, 0, 0, 0 }
+#define V2F   { v,    2, 2 * sizeof( GLfloat ), GL_FLOAT, sizeof( v[0] ) }
+#define V3F   { v,    3, 3 * sizeof( GLfloat ), GL_FLOAT, sizeof( v[0] ) }
+#define V4F   { v,    4, 4 * sizeof( GLfloat ), GL_FLOAT, sizeof( v[0] ) }
+
+#define C4UB  { c_ub, 4, 4 * sizeof( GLubyte ), GL_UNSIGNED_BYTE, sizeof( c_ub[0] ) }
+#define C3F   { c_f,  3, 3 * sizeof( GLfloat ), GL_FLOAT,         sizeof( c_f[0] ) }
+#define C4F   { c_f,  4, 4 * sizeof( GLfloat ), GL_FLOAT,         sizeof( c_f[0] ) }
+
+#define T2F   { t,    2, 2 * sizeof( GLfloat ), GL_FLOAT, sizeof( t[0] ) }
+#define T4F   { t,    4, 4 * sizeof( GLfloat ), GL_FLOAT, sizeof( t[0] ) }
+
+#define N3F   { n,    3, 3 * sizeof( GLfloat ), GL_FLOAT, sizeof( n[0] ) }
+
+struct interleave_info {
+   const void * data;
+   unsigned count;
+   unsigned size;
+   GLenum type;
+   unsigned stride;
+};
+
+#define NUM_MODES 14
+
+struct interleave_info info[ NUM_MODES ][4] = {
+   { NONE, NONE, NONE, V2F },
+   { NONE, NONE, NONE, V3F },
+   { NONE, C4UB, NONE, V2F },
+   { NONE, C4UB, NONE, V3F },
+   { NONE, C3F,  NONE, V3F },
+
+   { NONE, NONE, N3F,  V3F },
+   { NONE, C4F,  N3F,  V3F },
+
+   { T2F,  NONE, NONE, V3F },
+   { T4F,  NONE, NONE, V4F },
+
+   { T2F,  C4UB, NONE, V3F },
+   { T2F,  C3F,  NONE, V3F },
+   { T2F,  NONE, N3F,  V3F },
+   { T2F,  C4F,  N3F,  V3F },
+   { T4F,  C4F,  N3F,  V4F },
+};
+
+const char * const mode_names[ NUM_MODES ] = {
+   "GL_V2F",
+   "GL_V3F",
+   "GL_C4UB_V2F",
+   "GL_C4UB_V3F",
+   "GL_C3F_V3F",
+   "GL_N3F_V3F",
+   "GL_C4F_N3F_V3F",
+   "GL_T2F_V3F",
+   "GL_T4F_V4F",
+   "GL_T2F_C4UB_V3F",
+   "GL_T2F_C3F_V3F",
+   "GL_T2F_N3F_V3F",
+   "GL_T2F_C4F_N3F_V3F",
+   "GL_T4F_C4F_N3F_V4F",
+};
+
+unsigned interleave_mode = 0;
+
+#define DEREF(item,idx) (void *) & ((char *)curr_info[item].data)[idx * curr_info[item].stride]
+
+static void Display( void )
+{
+   const struct interleave_info * const curr_info = info[ interleave_mode ];
+
+   /* 4 floats for 12 verticies for 4 data elements.
+    */
+   char data[ (sizeof( GLfloat ) * 4) * 12 * 4 ];
+
+   unsigned i;
+   unsigned offset;
+
+
+   glClearColor(0.2, 0.2, 0.8, 0);
+   glClear( GL_COLOR_BUFFER_BIT );
+
+   glPushMatrix();
+
+   glTranslatef(-1.5, 0, 0);
+
+   glColor3fv( c_f[0] );
+
+   if ( curr_info[0].data != NULL ) {
+      glEnable( GL_TEXTURE_2D );
+   }
+   else {
+      glDisable( GL_TEXTURE_2D );
+   }
+
+
+   offset = 0;
+   glBegin(GL_TRIANGLES);
+   for ( i = 0 ; i < 12 ; i++ ) {
+      const unsigned index = indicies[i];
+
+
+      /* Handle the vertex texture coordinate.
+       */
+      if ( curr_info[0].data != NULL ) {
+	 if ( curr_info[0].count == 2 ) {
+	    glTexCoord2fv( DEREF(0, index) );
+	 }
+	 else {
+	    glTexCoord4fv( DEREF(0, index) );
+	 }
+
+	 (void) memcpy( & data[ offset ], DEREF(0, index),
+			curr_info[0].size );
+	 offset += curr_info[0].size;
+      }
+
+
+      /* Handle the vertex color.
+       */
+      if ( curr_info[1].data != NULL ) {
+	 if ( curr_info[1].type == GL_FLOAT ) {
+	    if ( curr_info[1].count == 3 ) {
+	       glColor3fv( DEREF(1, index) );
+	    }
+	    else {
+	       glColor4fv( DEREF(1, index) );
+	    }
+	 }
+	 else {
+	    glColor4ubv( DEREF(1, index) );
+	 }
+
+	 (void) memcpy( & data[ offset ], DEREF(1, index), 
+			curr_info[1].size );
+	 offset += curr_info[1].size;
+      }
+
+      
+      /* Handle the vertex normal.
+       */
+      if ( curr_info[2].data != NULL ) {
+	 glNormal3fv( DEREF(2, index) );
+
+	 (void) memcpy( & data[ offset ], DEREF(2, index),
+			curr_info[2].size );
+	 offset += curr_info[2].size;
+      }
+
+
+      switch( curr_info[3].count ) {
+      case 2:
+	 glVertex2fv( DEREF(3, index) );
+	 break;
+      case 3:
+	 glVertex3fv( DEREF(3, index) );
+	 break;
+      case 4:
+	 glVertex4fv( DEREF(3, index) );
+	 break;
+      }
+
+      (void) memcpy( & data[ offset ], DEREF(3, index),
+		     curr_info[3].size );
+	 offset += curr_info[3].size;
+   }
+   glEnd();
+
+
+   glTranslatef(3.0, 0, 0);
+   glInterleavedArrays( GL_V2F + interleave_mode, 0, data );
+   glDrawArrays( GL_TRIANGLES, 0, 12 );
+
+   glPopMatrix();
+
+   glutSwapBuffers();
+}
+
+
+static void Reshape( int width, int height )
+{
+   GLfloat ar = (float) width / (float) height;
+   Width = width;
+   Height = height;
+   glViewport( 0, 0, width, height );
+   glMatrixMode( GL_PROJECTION );
+   glLoadIdentity();
+   glFrustum( -ar, ar, -1.0, 1.0, Near, Far );
+   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 ModeMenu( int entry )
+{
+   interleave_mode = entry;
+}
+
+static void Init( void )
+{
+   const char * const ver_string = (const char * const)
+       glGetString( GL_VERSION );
+   const GLubyte tex[16] = {
+      0xff, 0x00, 0xff, 0x00, 
+      0x00, 0xff, 0x00, 0xff, 
+      0xff, 0x00, 0xff, 0x00, 
+      0x00, 0xff, 0x00, 0xff, 
+   };
+
+   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+   printf("GL_VERSION = %s\n", ver_string);
+
+   glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST );
+   glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST );
+   glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE );
+   glTexImage2D( GL_TEXTURE_2D, 0, GL_RGBA, 4, 4, 0,
+		 GL_LUMINANCE, GL_UNSIGNED_BYTE, tex );
+
+   printf("Use the context menu (right click) to select the interleaved array mode.\n");
+   printf("Press ESCAPE to exit.\n\n");
+   printf("NOTE: This is *NOT* a very good test of the modes that use normals.\n");
+}
+
+
+int main( int argc, char *argv[] )
+{
+   unsigned i;
+
+   glutInit( &argc, argv );
+   glutInitWindowPosition( 0, 0 );
+   glutInitWindowSize( Width, Height );
+   glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE );
+   glutCreateWindow( "glInterleavedArrays test" );
+   glutReshapeFunc( Reshape );
+   glutKeyboardFunc( Key );
+   glutDisplayFunc( Display );
+
+   glutCreateMenu( ModeMenu );
+   for ( i = 0 ; i < NUM_MODES ; i++ ) {
+      glutAddMenuEntry( mode_names[i], i);
+   }
+
+   glutAttachMenu(GLUT_RIGHT_BUTTON);
+
+   Init();
+   glutMainLoop();
+   return 0;
+}