1 /**************************************************************************
3 Copyright 2002 VMware, Inc.
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 VMWARE 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 <keithw@vmware.com>
38 #include "main/imports.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 (in bytes) of the VBO to use for glBegin/glVertex/glEnd-style rendering.
52 #define VBO_VERT_BUFFER_SIZE (1024 * 64)
55 struct vbo_exec_eval1_map
{
56 struct gl_1d_map
*map
;
60 struct vbo_exec_eval2_map
{
61 struct gl_2d_map
*map
;
67 struct vbo_exec_copied_vtx
{
68 fi_type buffer
[VBO_ATTRIB_MAX
* 4 * VBO_MAX_COPIED_VERTS
];
73 struct vbo_exec_context
75 struct gl_context
*ctx
;
76 GLvertexformat vtxfmt
;
77 GLvertexformat vtxfmt_noop
;
80 struct gl_buffer_object
*bufferobj
;
82 GLuint vertex_size
; /* in dwords */
83 GLuint vertex_size_no_pos
;
85 struct _mesa_prim prim
[VBO_MAX_PRIM
];
89 fi_type
*buffer_ptr
; /* cursor, points into buffer */
90 GLuint buffer_used
; /* in bytes */
91 unsigned buffer_offset
; /* only for persistent mappings */
92 fi_type vertex
[VBO_ATTRIB_MAX
*4]; /* current vertex */
94 GLuint vert_count
; /**< Number of vertices currently in buffer */
95 GLuint max_vert
; /**< Max number of vertices allowed in buffer */
96 struct vbo_exec_copied_vtx copied
;
98 GLbitfield64 enabled
; /**< mask of enabled vbo arrays. */
100 /* Keep these packed in a structure for faster access. */
102 GLenum16 type
; /**< GL_FLOAT, GL_DOUBLE, GL_INT, etc */
103 GLubyte active_size
; /**< number of components, but can shrink */
104 GLubyte size
; /**< number of components (1..4) */
105 } attr
[VBO_ATTRIB_MAX
];
107 /** pointers into the current 'vertex' array, declared above */
108 fi_type
*attrptr
[VBO_ATTRIB_MAX
];
112 GLboolean recalculate_maps
;
113 struct vbo_exec_eval1_map map1
[VERT_ATTRIB_MAX
];
114 struct vbo_exec_eval2_map map2
[VERT_ATTRIB_MAX
];
118 GLint flush_call_depth
;
125 vbo_exec_init(struct gl_context
*ctx
);
128 vbo_exec_destroy(struct gl_context
*ctx
);
131 vbo_exec_vtx_init(struct vbo_exec_context
*exec
);
134 vbo_exec_vtx_destroy(struct vbo_exec_context
*exec
);
137 vbo_exec_vtx_flush(struct vbo_exec_context
*exec
);
140 vbo_exec_vtx_map(struct vbo_exec_context
*exec
);
143 vbo_exec_eval_update(struct vbo_exec_context
*exec
);
146 vbo_exec_do_EvalCoord2f(struct vbo_exec_context
*exec
, GLfloat u
, GLfloat v
);
149 vbo_exec_do_EvalCoord1f(struct vbo_exec_context
*exec
, GLfloat u
);