1 files changed, 120 insertions, 0 deletions
diff --git a/src/mesa/state_tracker/wgl/stw_pixelformat.c b/src/mesa/state_tracker/wgl/stw_pixelformat.c
new file mode 100644
index 00000000000..7a054af3d3e
--- /dev/null
+++ b/src/mesa/state_tracker/wgl/stw_pixelformat.c
@@ -0,0 +1,120 @@
+/**************************************************************************
+ * 
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * 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, 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 TUNGSTEN GRAPHICS AND/OR ITS 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.
+ * 
+ **************************************************************************/
+
+#include "pipe/p_debug.h"
+#include "stw_pixelformat.h"
+
+#define MAX_PIXELFORMATS   16
+
+static struct pixelformat_info pixelformats[MAX_PIXELFORMATS];
+static uint pixelformat_count = 0;
+static uint pixelformat_extended_count = 0;
+
+static void
+add_standard_pixelformats(
+   struct pixelformat_info **ppf,
+   uint flags )
+{
+   struct pixelformat_info *pf = *ppf;
+   struct pixelformat_color_info color24 = { 8, 0, 8, 8, 8, 16 };
+   struct pixelformat_alpha_info alpha8 = { 8, 24 };
+   struct pixelformat_alpha_info noalpha = { 0, 0 };
+   struct pixelformat_depth_info depth24s8 = { 24, 8 };
+   struct pixelformat_depth_info depth16 = { 16, 0 };
+
+   pf->flags = PF_FLAG_DOUBLEBUFFER | flags;
+   pf->color = color24;
+   pf->alpha = alpha8;
+   pf->depth = depth16;
+   pf++;
+
+   pf->flags = PF_FLAG_DOUBLEBUFFER | flags;
+   pf->color = color24;
+   pf->alpha = alpha8;
+   pf->depth = depth24s8;
+   pf++;
+
+   pf->flags = PF_FLAG_DOUBLEBUFFER | flags;
+   pf->color = color24;
+   pf->alpha = noalpha;
+   pf->depth = depth16;
+   pf++;
+
+   pf->flags = PF_FLAG_DOUBLEBUFFER | flags;
+   pf->color = color24;
+   pf->alpha = noalpha;
+   pf->depth = depth24s8;
+   pf++;
+
+   pf->flags = flags;
+   pf->color = color24;
+   pf->alpha = noalpha;
+   pf->depth = depth16;
+   pf++;
+
+   pf->flags = flags;
+   pf->color = color24;
+   pf->alpha = noalpha;
+   pf->depth = depth24s8;
+   pf++;
+
+   *ppf = pf;
+}
+
+void
+pixelformat_init( void )
+{
+   struct pixelformat_info *pf = pixelformats;
+
+   add_standard_pixelformats( &pf, 0 );
+   pixelformat_count = pf - pixelformats;
+
+   add_standard_pixelformats( &pf, PF_FLAG_MULTISAMPLED );
+   pixelformat_extended_count = pf - pixelformats;
+
+   assert( pixelformat_extended_count <= MAX_PIXELFORMATS );
+}
+
+uint
+pixelformat_get_count( void )
+{
+   return pixelformat_count;
+}
+
+uint
+pixelformat_get_extended_count( void )
+{
+   return pixelformat_extended_count;
+}
+
+const struct pixelformat_info *
+pixelformat_get_info( uint index )
+{
+   assert( index < pixelformat_extended_count );
+
+   return &pixelformats[index];
+}