1 files changed, 146 insertions, 0 deletions
diff --git a/xc/lib/GL/mesa/src/drv/mga/mgadd.c b/xc/lib/GL/mesa/src/drv/mga/mgadd.c
new file mode 100644
index 000000000..ad56cbbc3
--- /dev/null
+++ b/xc/lib/GL/mesa/src/drv/mga/mgadd.c
@@ -0,0 +1,146 @@
+/*
+ * GLX Hardware Device Driver for Matrox G200/G400
+ * Copyright (C) 1999 Wittawat Yamwong
+ *
+ * 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
+ * WITTAWAT YAMWONG, OR ANY OTHER CONTRIBUTORS 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.
+ *
+ *
+ *    Wittawat Yamwong <Wittawat.Yamwong@stud.uni-hannover.de>
+ */
+
+
+
+#include "types.h"
+#include "vbrender.h"
+
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "mm.h"
+#include "mgalib.h"
+#include "mgaclear.h"
+#include "mgadd.h"
+#include "mgadepth.h"
+#include "mgalog.h"
+#include "mgastate.h"
+#include "mgaspan.h"
+#include "mgatex.h"
+#include "mgatris.h"
+#include "mgavb.h"
+#include "mgapipeline.h"
+#include "extensions.h"
+#include "vb.h"
+#include "dd.h"
+
+
+
+/***************************************
+ * Mesa's Driver Functions
+ ***************************************/
+
+
+static const GLubyte *mgaDDGetString( GLcontext *ctx, GLenum name )
+{
+   mgaContextPtr mmesa = MGA_CONTEXT( ctx );
+   switch (name) {
+   case GL_VENDOR:
+      return "Utah GLX";
+   case GL_RENDERER:
+      if (MGA_IS_G200(mmesa)) return "GLX-MGA-G200";
+      if (MGA_IS_G400(mmesa)) return "GLX-MGA-G400";
+      return "GLX-MGA";
+   default:
+      return 0;
+   }
+}
+
+
+static GLint mgaGetParameteri(const GLcontext *ctx, GLint param)
+{
+  switch (param) {
+  case DD_HAVE_HARDWARE_FOG:  
+    return 1; 
+  default:
+    mgaError("mgaGetParameteri(): unknown parameter!\n");
+    return 0;
+  }
+}
+
+
+static void mgaBufferSize(GLcontext *ctx, GLuint *width, GLuint *height)
+{
+   mgaContextPtr mmesa = MGA_CONTEXT(ctx);  
+   
+/*     LOCK_HARDWARE( mmesa ); */
+   *width = mmesa->driDrawable->w;
+   *height = mmesa->driDrawable->h;
+/*     UNLOCK_HARDWARE( mmesa ); */
+}
+
+void mgaDDExtensionsInit( GLcontext *ctx )
+{
+   /* paletted_textures currently doesn't work, but we could fix them later */
+   gl_extensions_disable( ctx, "GL_EXT_shared_texture_palette" );
+   gl_extensions_disable( ctx, "GL_EXT_paletted_texture" );
+
+   /* Support multitexture only on the g400.
+    */
+   if (!MGA_IS_G400(MGA_CONTEXT(ctx))) 
+   {
+      gl_extensions_disable( ctx, "GL_EXT_multitexture" );
+      gl_extensions_disable( ctx, "GL_SGIS_multitexture" );
+      gl_extensions_disable( ctx, "GL_ARB_multitexture" );
+   }
+
+   /* Turn on texenv_add for the G400.
+    */
+   if (MGA_IS_G400(MGA_CONTEXT(ctx)))
+   {
+      gl_extensions_enable( ctx, "GL_EXT_texture_env_add" );
+   }
+
+   /* we don't support point parameters in hardware yet */
+   gl_extensions_disable( ctx, "GL_EXT_point_parameters" );
+
+   /* No support for fancy imaging stuff.  This should kill off 
+    * a few rogue fallbacks.
+    */
+   gl_extensions_disable( ctx, "ARB_imaging" );
+   gl_extensions_disable( ctx, "GL_EXT_blend_minmax" );
+   gl_extensions_disable( ctx, "GL_EXT_blend_logic_op" );
+   gl_extensions_disable( ctx, "GL_EXT_blend_subtract" );
+   gl_extensions_disable( ctx, "GL_INGR_blend_func_separate" );   
+}
+
+
+
+
+
+
+
+void mgaDDInitDriverFuncs( GLcontext *ctx )
+{
+   ctx->Driver.GetBufferSize = mgaBufferSize;
+   ctx->Driver.GetString = mgaDDGetString;
+   ctx->Driver.GetParameteri = mgaGetParameteri;
+   ctx->Driver.RegisterVB = mgaDDRegisterVB;
+   ctx->Driver.UnregisterVB = mgaDDUnregisterVB;
+   ctx->Driver.BuildPrecalcPipeline = mgaDDBuildPrecalcPipeline;
+}