1 /**************************************************************************
3 Copyright 2002 Tungsten Graphics Inc., Cedar Park, Texas.
7 Permission is hereby granted, free of charge, to any person obtaining a
8 copy of this software and associated documentation files (the "Software"),
9 to deal in the Software without restriction, including without limitation
10 on the rights to use, copy, modify, merge, publish, distribute, sub
11 license, and/or sell copies of the Software, and to permit persons to whom
12 the Software is furnished to do so, subject to the following conditions:
14 The above copyright notice and this permission notice (including the next
15 paragraph) shall be included in all copies or substantial portions of the
18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
21 TUNGSTEN GRAPHICS AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
22 DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
23 OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
24 USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
30 * Keith Whitwell <keith@tungstengraphics.com>
34 #ifndef __VBO_EXEC_H__
35 #define __VBO_EXEC_H__
37 #include "main/mfeatures.h"
38 #include "main/mtypes.h"
40 #include "vbo_attrib.h"
44 * Max number of primitives (number of glBegin/End pairs) per VBO.
46 #define VBO_MAX_PRIM 64
50 * Size of the VBO to use for glBegin/glVertex/glEnd-style rendering.
52 #define VBO_VERT_BUFFER_SIZE (1024*64) /* bytes */
55 /** Current vertex program mode */
57 VP_NONE
, /**< fixed function */
58 VP_NV
, /**< NV vertex program */
59 VP_ARB
/**< ARB vertex program or GLSL vertex shader */
63 struct vbo_exec_eval1_map
{
64 struct gl_1d_map
*map
;
68 struct vbo_exec_eval2_map
{
69 struct gl_2d_map
*map
;
75 struct vbo_exec_copied_vtx
{
76 GLfloat buffer
[VBO_ATTRIB_MAX
* 4 * VBO_MAX_COPIED_VERTS
];
81 typedef void (*vbo_attrfv_func
)( const GLfloat
* );
84 struct vbo_exec_context
86 struct gl_context
*ctx
;
87 GLvertexformat vtxfmt
;
90 struct gl_buffer_object
*bufferobj
;
92 GLuint vertex_size
; /* in dwords */
94 struct _mesa_prim prim
[VBO_MAX_PRIM
];
98 GLfloat
*buffer_ptr
; /* cursor, points into buffer */
99 GLuint buffer_used
; /* in bytes */
100 GLfloat vertex
[VBO_ATTRIB_MAX
*4]; /* current vertex */
104 struct vbo_exec_copied_vtx copied
;
106 GLubyte attrsz
[VBO_ATTRIB_MAX
];
107 GLubyte active_sz
[VBO_ATTRIB_MAX
];
109 GLfloat
*attrptr
[VBO_ATTRIB_MAX
];
110 struct gl_client_array arrays
[VERT_ATTRIB_MAX
];
112 /* According to program mode, the values above plus current
113 * values are squashed down to the 32 attributes passed to the
114 * vertex program below:
116 enum vp_mode program_mode
;
117 GLuint enabled_flags
;
118 const struct gl_client_array
*inputs
[VERT_ATTRIB_MAX
];
123 GLboolean recalculate_maps
;
124 struct vbo_exec_eval1_map map1
[VERT_ATTRIB_MAX
];
125 struct vbo_exec_eval2_map map2
[VERT_ATTRIB_MAX
];
129 enum vp_mode program_mode
;
130 GLuint enabled_flags
;
133 /* These just mirror the current arrayobj (todo: make arrayobj
134 * look like this and remove the mirror):
136 const struct gl_client_array
*legacy_array
[16];
137 const struct gl_client_array
*generic_array
[16];
139 /* Arrays and current values manipulated according to program
140 * mode, etc. These are the attributes as seen by vertex
143 const struct gl_client_array
*inputs
[VERT_ATTRIB_MAX
];
146 /* Which flags to set in vbo_exec_BeginVertices() */
147 GLbitfield begin_vertices_flags
;
150 GLint flush_call_depth
;
158 void vbo_exec_init( struct gl_context
*ctx
);
159 void vbo_exec_destroy( struct gl_context
*ctx
);
160 void vbo_exec_invalidate_state( struct gl_context
*ctx
, GLuint new_state
);
162 void vbo_exec_BeginVertices( struct gl_context
*ctx
);
163 void vbo_exec_FlushVertices( struct gl_context
*ctx
, GLuint flags
);
166 /* Internal functions:
168 void vbo_exec_array_init( struct vbo_exec_context
*exec
);
169 void vbo_exec_array_destroy( struct vbo_exec_context
*exec
);
172 void vbo_exec_vtx_init( struct vbo_exec_context
*exec
);
173 void vbo_exec_vtx_destroy( struct vbo_exec_context
*exec
);
177 void vbo_exec_vtx_flush( struct vbo_exec_context
*exec
, GLboolean unmap
);
178 void vbo_exec_vtx_map( struct vbo_exec_context
*exec
);
180 #else /* FEATURE_beginend */
183 vbo_exec_vtx_flush( struct vbo_exec_context
*exec
, GLboolean unmap
)
188 vbo_exec_vtx_map( struct vbo_exec_context
*exec
)
192 #endif /* FEATURE_beginend */
194 void vbo_exec_vtx_wrap( struct vbo_exec_context
*exec
);
196 void vbo_exec_eval_update( struct vbo_exec_context
*exec
);
198 void vbo_exec_do_EvalCoord2f( struct vbo_exec_context
*exec
,
199 GLfloat u
, GLfloat v
);
201 void vbo_exec_do_EvalCoord1f( struct vbo_exec_context
*exec
,