From af0a4690db6d7f30ecc87b72d447856cd8c0a929 Mon Sep 17 00:00:00 2001
From: Ian Romanick <idr@us.ibm.com>
Date: Fri, 8 Oct 2004 00:56:08 +0000
Subject: [PATCH] Add simple test program for Mesa bug #1028405.

---
 progs/tests/Makefile  |  1 +
 progs/tests/no_s3tc.c | 97 +++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 98 insertions(+)
 create mode 100644 progs/tests/no_s3tc.c

diff --git a/progs/tests/Makefile b/progs/tests/Makefile
index 52b6b1e2a65..a826762e1cf 100644
--- a/progs/tests/Makefile
+++ b/progs/tests/Makefile
@@ -31,6 +31,7 @@ SOURCES = antialias.c \
 	getprocaddress.c \
 	manytex.c \
 	multipal.c \
+	no_s3tc.c \
 	packedpixels.c \
 	pbo.c \
 	projtex.c \
diff --git a/progs/tests/no_s3tc.c b/progs/tests/no_s3tc.c
new file mode 100644
index 00000000000..d3383ff98af
--- /dev/null
+++ b/progs/tests/no_s3tc.c
@@ -0,0 +1,97 @@
+/*
+ * (C) Copyright IBM Corporation 2004
+ * 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 no_s3tc.c
+ * Test program to verify the behavior of an OpenGL implementation when
+ * an application calls \c glCompressedTexImage2D with an unsupported (but
+ * valid) compression format.  The most common example is calling it with
+ * \c GL_COMPRESSED_RGBA_S3TC_DXT1_EXT when GL_EXT_texture_compression_s3tc
+ * is not supported.
+ * 
+ * This tests Mesa bug #1028405.
+ *
+ * \author Ian Romanick <idr@us.ibm.com>
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <GL/glut.h>
+#include <GL/glext.h>
+
+static unsigned data[16];
+
+int
+main( int argc, char ** argv )
+{
+   float gl_version;
+   GLenum format;
+   GLuint size;
+   GLuint width;
+   GLenum err;
+
+
+   glutInit( & argc, argv );
+   glutInitDisplayMode( GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE );
+
+   glutInitWindowPosition( 0, 0 );
+   glutInitWindowSize( 300, 300 );
+   glutCreateWindow( "No S3TC Test" );
+
+   gl_version = strtod( (const char *) glGetString( GL_VERSION ), NULL );
+   if ( ! glutExtensionSupported( "GL_ARB_texture_compression" )
+	&& (gl_version < 1.3) ) {
+      fprintf( stderr, "Either OpenGL 1.3 or GL_ARB_texture_compression "
+	       "must be supported.\n" );
+      return( EXIT_SUCCESS );
+   }
+
+   
+   if ( ! glutExtensionSupported( "GL_EXT_texture_compression_s3tc" ) ) {
+      format = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
+      width = 4;
+      size = 8;
+   }
+   else if ( ! glutExtensionSupported( "GL_3DFX_texture_compression_FXT1" ) ) {
+      format = GL_COMPRESSED_RGBA_FXT1_3DFX;
+      width = 8;
+      size = 16;
+   }
+   else {
+      fprintf( stderr, "Either GL_EXT_texture_compression_s3tc or "
+	       "GL_3DFX_texture_compression_FXT1 must NOT be supported.\n" );
+      return( EXIT_SUCCESS );
+   }
+	
+   glCompressedTexImage2D( GL_TEXTURE_2D, 0, format, width, 4, 0,
+			   size, data );
+   err = glGetError();
+   if ( err != GL_INVALID_ENUM ) {
+      fprintf( stderr, "GL error 0x%04x should have been generated, but "
+	       "0x%04x was generated instead.\n", GL_INVALID_ENUM, err );
+   }
+	
+   return (err == GL_INVALID_ENUM) ? EXIT_SUCCESS : EXIT_FAILURE;
+}
-- 
2.30.2