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/mtypes.h"
39 #include "main/imports.h"
41 #include "vbo_attrib.h"
45 * Max number of primitives (number of glBegin/End pairs) per VBO.
47 #define VBO_MAX_PRIM 64
51 * Size (in bytes) of the VBO to use for glBegin/glVertex/glEnd-style rendering.
53 #define VBO_VERT_BUFFER_SIZE (1024 * 64)
56 struct vbo_exec_eval1_map
{
57 struct gl_1d_map
*map
;
61 struct vbo_exec_eval2_map
{
62 struct gl_2d_map
*map
;
68 struct vbo_exec_copied_vtx
{
69 fi_type buffer
[VBO_ATTRIB_MAX
* 4 * VBO_MAX_COPIED_VERTS
];
74 struct vbo_exec_context
76 struct gl_context
*ctx
;
77 GLvertexformat vtxfmt
;
78 GLvertexformat vtxfmt_noop
;
79 GLboolean validating
; /**< if we're in the middle of state validation */
82 struct gl_buffer_object
*bufferobj
;
84 GLuint vertex_size
; /* in dwords */
86 struct _mesa_prim prim
[VBO_MAX_PRIM
];
90 fi_type
*buffer_ptr
; /* cursor, points into buffer */
91 GLuint buffer_used
; /* in bytes */
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. */
99 GLubyte attrsz
[VBO_ATTRIB_MAX
]; /**< nr. of attrib components (1..4) */
100 GLenum attrtype
[VBO_ATTRIB_MAX
]; /**< GL_FLOAT, GL_DOUBLE, GL_INT, etc */
101 GLubyte active_sz
[VBO_ATTRIB_MAX
]; /**< attrib size (nr. 32-bit words) */
103 /** pointers into the current 'vertex' array, declared above */
104 fi_type
*attrptr
[VBO_ATTRIB_MAX
];
106 struct gl_vertex_array arrays
[VERT_ATTRIB_MAX
];
108 /* According to program mode, the values above plus current
109 * values are squashed down to the 32 attributes passed to the
110 * vertex program below:
112 const struct gl_vertex_array
*inputs
[VERT_ATTRIB_MAX
];
116 GLboolean recalculate_maps
;
117 struct vbo_exec_eval1_map map1
[VERT_ATTRIB_MAX
];
118 struct vbo_exec_eval2_map map2
[VERT_ATTRIB_MAX
];
122 /* Arrays and current values manipulated according to program
123 * mode, etc. These are the attributes as seen by vertex
126 const struct gl_vertex_array
*inputs
[VERT_ATTRIB_MAX
];
127 GLboolean recalculate_inputs
;
130 /* Which flags to set in vbo_exec_begin_vertices() */
131 GLbitfield begin_vertices_flags
;
134 GLint flush_call_depth
;
141 vbo_exec_init(struct gl_context
*ctx
);
144 vbo_exec_destroy(struct gl_context
*ctx
);
147 vbo_exec_vtx_init(struct vbo_exec_context
*exec
);
150 vbo_exec_vtx_destroy(struct vbo_exec_context
*exec
);
153 vbo_exec_vtx_flush(struct vbo_exec_context
*exec
, GLboolean unmap
);
156 vbo_exec_vtx_map(struct vbo_exec_context
*exec
);
159 vbo_exec_eval_update(struct vbo_exec_context
*exec
);
162 vbo_exec_do_EvalCoord2f(struct vbo_exec_context
*exec
, GLfloat u
, GLfloat v
);
165 vbo_exec_do_EvalCoord1f(struct vbo_exec_context
*exec
, GLfloat u
);