new texture compression infrastructure

1 files changed, 58 insertions, 0 deletions

diff --git a/src/mesa/main/texcompress.h b/src/mesa/main/texcompress.h
new file mode 100644
index 0000000..5357167
--- /dev/null
+++ b/src/mesa/main/texcompress.h
@@ -0,0 +1,58 @@
+/* $Id: texcompress.h,v 1.1 2002/09/27 02:45:38 brianp Exp $ */
+
+/*
+ * Mesa 3-D graphics library
+ * Version:  4.1
+ *
+ * Copyright (C) 1999-2002  Brian Paul   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
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * 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 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 NONINFRINGEMENT.  IN NO EVENT SHALL
+ * BRIAN PAUL 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.
+ */
+
+#ifndef TEXCOMPRESS_H
+#define TEXCOMPRESS_H
+
+#include "mtypes.h"
+
+
+extern GLuint
+_mesa_get_compressed_formats( GLcontext *ctx, GLint *formats );
+
+extern GLuint
+_mesa_compressed_texture_size( GLcontext *ctx,
+                               GLsizei width, GLsizei height, GLsizei depth,
+                               GLenum format );
+
+extern GLint
+_mesa_compressed_row_stride(GLenum format, GLsizei width);
+
+
+extern GLubyte *
+_mesa_compressed_image_address(GLint col, GLint row, GLint img,
+                               GLenum format,
+                               GLsizei width, const GLubyte *image);
+
+
+extern void
+_mesa_compress_teximage( GLcontext *ctx, GLsizei width, GLsizei height,
+                         GLenum srcFormat,
+                         const GLchan *source, GLint srcRowStride,
+                         GLenum dstformat, GLubyte *dest, GLint dstRowStride );
+
+
+#endif /* TEXCOMPRESS_H */