1 files changed, 153 insertions, 0 deletions
diff --git a/src/mesa/main/hint.c b/src/mesa/main/hint.c
new file mode 100644
index 00000000000..6680edd1655
--- /dev/null
+++ b/src/mesa/main/hint.c
@@ -0,0 +1,153 @@
+
+/*
+ * 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.
+ */
+
+
+#include "glheader.h"
+#include "enums.h"
+#include "context.h"
+#include "hint.h"
+#include "imports.h"
+
+
+
+void GLAPIENTRY
+_mesa_Hint( GLenum target, GLenum mode )
+{
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (MESA_VERBOSE & VERBOSE_API)
+      _mesa_debug(ctx, "glHint %s %d\n",
+                  _mesa_lookup_enum_by_nr(target), mode);
+
+   if (mode != GL_NICEST && mode != GL_FASTEST && mode != GL_DONT_CARE) {
+      _mesa_error(ctx, GL_INVALID_ENUM, "glHint(mode)");
+      return;
+   }
+
+   switch (target) {
+      case GL_FOG_HINT:
+         if (ctx->Hint.Fog == mode)
+	    return;
+	 FLUSH_VERTICES(ctx, _NEW_HINT);
+         ctx->Hint.Fog = mode;
+         break;
+      case GL_LINE_SMOOTH_HINT:
+         if (ctx->Hint.LineSmooth == mode)
+	    return;
+	 FLUSH_VERTICES(ctx, _NEW_HINT);
+         ctx->Hint.LineSmooth = mode;
+         break;
+      case GL_PERSPECTIVE_CORRECTION_HINT:
+         if (ctx->Hint.PerspectiveCorrection == mode)
+	    return;
+	 FLUSH_VERTICES(ctx, _NEW_HINT);
+         ctx->Hint.PerspectiveCorrection = mode;
+         break;
+      case GL_POINT_SMOOTH_HINT:
+         if (ctx->Hint.PointSmooth == mode)
+	    return;
+	 FLUSH_VERTICES(ctx, _NEW_HINT);
+         ctx->Hint.PointSmooth = mode;
+         break;
+      case GL_POLYGON_SMOOTH_HINT:
+         if (ctx->Hint.PolygonSmooth == mode)
+	    return;
+	 FLUSH_VERTICES(ctx, _NEW_HINT);
+         ctx->Hint.PolygonSmooth = mode;
+         break;
+
+      /* GL_EXT_clip_volume_hint */
+      case GL_CLIP_VOLUME_CLIPPING_HINT_EXT:
+         if (ctx->Hint.ClipVolumeClipping == mode)
+	    return;
+	 FLUSH_VERTICES(ctx, _NEW_HINT);
+         ctx->Hint.ClipVolumeClipping = mode;
+         break;
+
+      /* GL_ARB_texture_compression */
+      case GL_TEXTURE_COMPRESSION_HINT_ARB:
+         if (!ctx->Extensions.ARB_texture_compression) {
+            _mesa_error(ctx, GL_INVALID_ENUM, "glHint(target)");
+	    return;
+         }
+	 if (ctx->Hint.TextureCompression == mode)
+	    return;
+	 FLUSH_VERTICES(ctx, _NEW_HINT);
+	 ctx->Hint.TextureCompression = mode;
+         break;
+
+      /* GL_SGIS_generate_mipmap */
+      case GL_GENERATE_MIPMAP_HINT_SGIS:
+         if (!ctx->Extensions.SGIS_generate_mipmap) {
+            _mesa_error(ctx, GL_INVALID_ENUM, "glHint(target)");
+	    return;
+         }
+         if (ctx->Hint.GenerateMipmap == mode)
+            return;
+	 FLUSH_VERTICES(ctx, _NEW_HINT);
+	 ctx->Hint.GenerateMipmap = mode;
+         break;
+
+      /* GL_ARB_fragment_shader */
+      case GL_FRAGMENT_SHADER_DERIVATIVE_HINT_ARB:
+         if (!ctx->Extensions.ARB_fragment_shader) {
+            _mesa_error(ctx, GL_INVALID_ENUM, "glHint(target)");
+            return;
+         }
+         if (ctx->Hint.FragmentShaderDerivative == mode)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_HINT);
+         ctx->Hint.FragmentShaderDerivative = mode;
+         break;
+
+      default:
+         _mesa_error(ctx, GL_INVALID_ENUM, "glHint(target)");
+         return;
+   }
+
+   if (ctx->Driver.Hint) {
+      (*ctx->Driver.Hint)( ctx, target, mode );
+   }
+}
+
+
+/**********************************************************************/
+/*****                      Initialization                        *****/
+/**********************************************************************/
+
+void _mesa_init_hint( GLcontext * ctx )
+{
+   /* Hint group */
+   ctx->Hint.PerspectiveCorrection = GL_DONT_CARE;
+   ctx->Hint.PointSmooth = GL_DONT_CARE;
+   ctx->Hint.LineSmooth = GL_DONT_CARE;
+   ctx->Hint.PolygonSmooth = GL_DONT_CARE;
+   ctx->Hint.Fog = GL_DONT_CARE;
+   ctx->Hint.ClipVolumeClipping = GL_DONT_CARE;
+   ctx->Hint.TextureCompression = GL_DONT_CARE;
+   ctx->Hint.GenerateMipmap = GL_DONT_CARE;
+   ctx->Hint.FragmentShaderDerivative = GL_DONT_CARE;
+}