svn merge ^/branches/released . --username marha

1 files changed, 114 insertions, 0 deletions

diff --git a/mesalib/src/mesa/vbo/vbo_context.h b/mesalib/src/mesa/vbo/vbo_context.h
new file mode 100644
index 000000000..8b726dc8a
--- /dev/null
+++ b/mesalib/src/mesa/vbo/vbo_context.h
@@ -0,0 +1,114 @@
+/*
+ * mesa 3-D graphics library
+ * Version:  6.5
+ *
+ * Copyright (C) 1999-2006  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.
+ */
+
+/**
+ * \file vbo_context.h
+ * \brief VBO builder module datatypes and definitions.
+ * \author Keith Whitwell
+ */
+
+
+/**
+ * \mainpage The VBO builder module
+ *
+ * This module hooks into the GL dispatch table and catches all vertex
+ * building and drawing commands, such as glVertex3f, glBegin and
+ * glDrawArrays.  The module stores all incoming vertex data as arrays
+ * in GL vertex buffer objects (VBOs), and translates all drawing
+ * commands into calls to a driver supplied DrawPrimitives() callback.
+ *
+ * The module captures both immediate mode and display list drawing,
+ * and manages the allocation, reference counting and deallocation of
+ * vertex buffer objects itself.
+ * 
+ * The DrawPrimitives() callback can be either implemented by the
+ * driver itself or hooked to the tnl module's _tnl_draw_primitives()
+ * function for hardware without tnl capablilties or during fallbacks.
+ */
+
+
+#ifndef _VBO_CONTEXT_H
+#define _VBO_CONTEXT_H
+
+#include "vbo.h"
+#include "vbo_attrib.h"
+#include "vbo_exec.h"
+#if FEATURE_dlist
+#include "vbo_save.h"
+#endif
+
+
+struct vbo_context {
+   struct gl_client_array currval[VBO_ATTRIB_MAX];
+   
+   /* These point into the above.  TODO: remove. 
+    */
+   struct gl_client_array *legacy_currval;
+   struct gl_client_array *generic_currval;
+   struct gl_client_array *mat_currval;
+
+   GLuint map_vp_none[VERT_ATTRIB_MAX];
+   GLuint map_vp_arb[VERT_ATTRIB_MAX];
+
+   GLfloat *current[VBO_ATTRIB_MAX]; /* points into ctx->Current, ctx->Light.Material */
+   GLfloat CurrentFloatEdgeFlag;
+
+
+   struct vbo_exec_context exec;
+#if FEATURE_dlist
+   struct vbo_save_context save;
+#endif
+
+   /* Callback into the driver.  This must always succeed, the driver
+    * is responsible for initiating any fallback actions required:
+    */
+   vbo_draw_func draw_prims;
+};
+
+
+static INLINE struct vbo_context *vbo_context(GLcontext *ctx) 
+{
+   return (struct vbo_context *)(ctx->swtnl_im);
+}
+
+
+/**
+ * Return VP_x token to indicate whether we're running fixed-function
+ * vertex transformation, an NV vertex program or ARB vertex program/shader.
+ */
+static INLINE enum vp_mode
+get_program_mode( GLcontext *ctx )
+{
+   if (!ctx->VertexProgram._Current)
+      return VP_NONE;
+   else if (ctx->VertexProgram._Current == ctx->VertexProgram._TnlProgram)
+      return VP_NONE;
+   else if (ctx->VertexProgram._Current->IsNVProgram)
+      return VP_NV;
+   else
+      return VP_ARB;
+}
+
+
+#endif