2 * mesa 3-D graphics library
5 * Copyright (C) 1999-2006 Brian Paul All Rights Reserved.
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8 * copy of this software and associated documentation files (the "Software"),
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27 * \brief VBO builder module datatypes and definitions.
28 * \author Keith Whitwell
33 * \mainpage The VBO builder module
35 * This module hooks into the GL dispatch table and catches all vertex
36 * building and drawing commands, such as glVertex3f, glBegin and
37 * glDrawArrays. The module stores all incoming vertex data as arrays
38 * in GL vertex buffer objects (VBOs), and translates all drawing
39 * commands into calls to a driver supplied DrawPrimitives() callback.
41 * The module captures both immediate mode and display list drawing,
42 * and manages the allocation, reference counting and deallocation of
43 * vertex buffer objects itself.
45 * The DrawPrimitives() callback can be either implemented by the
46 * driver itself or hooked to the tnl module's _tnl_draw_primitives()
47 * function for hardware without tnl capablilties or during fallbacks.
51 #ifndef _VBO_CONTEXT_H
52 #define _VBO_CONTEXT_H
55 #include "vbo_attrib.h"
61 struct gl_client_array currval
[VBO_ATTRIB_MAX
];
63 /* These point into the above. TODO: remove.
65 struct gl_client_array
*legacy_currval
;
66 struct gl_client_array
*generic_currval
;
67 struct gl_client_array
*mat_currval
;
69 GLuint map_vp_none
[VERT_ATTRIB_MAX
];
70 GLuint map_vp_arb
[VERT_ATTRIB_MAX
];
72 GLfloat
*current
[VBO_ATTRIB_MAX
]; /* points into ctx->Current, ctx->Light.Material */
73 GLfloat CurrentFloatEdgeFlag
;
76 struct vbo_exec_context exec
;
78 struct vbo_save_context save
;
81 /* Callback into the driver. This must always succeed, the driver
82 * is responsible for initiating any fallback actions required:
84 vbo_draw_func draw_prims
;
88 static INLINE
struct vbo_context
*vbo_context(GLcontext
*ctx
)
90 return (struct vbo_context
*)(ctx
->swtnl_im
);
95 * Return VP_x token to indicate whether we're running fixed-function
96 * vertex transformation, an NV vertex program or ARB vertex program/shader.
98 static INLINE
enum vp_mode
99 get_program_mode( GLcontext
*ctx
)
101 if (!ctx
->VertexProgram
._Current
)
103 else if (ctx
->VertexProgram
._Current
== ctx
->VertexProgram
._TnlProgram
)
105 else if (ctx
->VertexProgram
._Current
->IsNVProgram
)