1 /**************************************************************************
3 * Copyright 2005 VMware, Inc.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
29 #include "main/context.h"
30 #include "main/glheader.h"
31 #include "main/enums.h"
32 #include "main/imports.h"
33 #include "main/mtypes.h"
34 #include "main/dispatch.h"
35 #include "glapi/glapi.h"
37 #include "vbo_context.h"
40 typedef void (*attr_func
)(struct gl_context
*ctx
, GLint index
, const GLfloat
*);
43 /* This file makes heavy use of the aliasing of NV vertex attributes
44 * with the legacy attributes, and also with ARB and Material
45 * attributes as currently implemented.
48 VertexAttrib1fvNV(struct gl_context
*ctx
, GLint index
, const GLfloat
*v
)
50 CALL_VertexAttrib1fvNV(ctx
->Exec
, (index
, v
));
55 VertexAttrib2fvNV(struct gl_context
*ctx
, GLint index
, const GLfloat
*v
)
57 CALL_VertexAttrib2fvNV(ctx
->Exec
, (index
, v
));
62 VertexAttrib3fvNV(struct gl_context
*ctx
, GLint index
, const GLfloat
*v
)
64 CALL_VertexAttrib3fvNV(ctx
->Exec
, (index
, v
));
69 VertexAttrib4fvNV(struct gl_context
*ctx
, GLint index
, const GLfloat
*v
)
71 CALL_VertexAttrib4fvNV(ctx
->Exec
, (index
, v
));
75 static attr_func vert_attrfunc
[4] = {
83 struct loopback_attr
{
91 * Don't emit ends and begins on wrapped primitives. Don't replay
92 * wrapped vertices. If we get here, it's probably because the
93 * precalculated wrapping is wrong.
96 loopback_prim(struct gl_context
*ctx
,
97 const GLfloat
*buffer
,
98 const struct _mesa_prim
*prim
,
101 const struct loopback_attr
*la
, GLuint nr
)
103 GLint start
= prim
->start
;
104 GLint end
= start
+ prim
->count
;
110 printf("loopback prim %s(%s,%s) verts %d..%d\n",
111 _mesa_lookup_prim_by_nr(prim
->mode
),
112 prim
->begin
? "begin" : "..",
113 prim
->end
? "end" : "..",
117 CALL_Begin(GET_DISPATCH(), (prim
->mode
));
124 data
= buffer
+ start
* vertex_size
;
126 for (j
= start
; j
< end
; j
++) {
127 const GLfloat
*tmp
= data
+ la
[0].sz
;
129 for (k
= 1; k
< nr
; k
++) {
130 la
[k
].func(ctx
, la
[k
].index
, tmp
);
136 la
[0].func(ctx
, VBO_ATTRIB_POS
, data
);
141 CALL_End(GET_DISPATCH(), ());
147 * Primitives generated by DrawArrays/DrawElements/Rectf may be
148 * caught here. If there is no primitive in progress, execute them
149 * normally, otherwise need to track and discard the generated
153 loopback_weak_prim(struct gl_context
*ctx
,
154 const struct _mesa_prim
*prim
)
156 /* Use the prim_weak flag to ensure that if this primitive
157 * wraps, we don't mistake future vertex_lists for part of the
158 * surrounding primitive.
160 * While this flag is set, we are simply disposing of data
161 * generated by an operation now known to be a noop.
164 ctx
->Driver
.CurrentExecPrimitive
|= VBO_SAVE_PRIM_WEAK
;
166 ctx
->Driver
.CurrentExecPrimitive
&= ~VBO_SAVE_PRIM_WEAK
;
171 vbo_loopback_vertex_list(struct gl_context
*ctx
,
172 const GLfloat
*buffer
,
173 const GLubyte
*attrsz
,
174 const struct _mesa_prim
*prim
,
179 struct loopback_attr la
[VBO_ATTRIB_MAX
];
182 /* All Legacy, NV, ARB and Material attributes are routed through
183 * the NV attributes entrypoints:
185 for (i
= 0; i
< VBO_ATTRIB_MAX
; i
++) {
188 la
[nr
].sz
= attrsz
[i
];
189 la
[nr
].func
= vert_attrfunc
[attrsz
[i
]-1];
194 for (i
= 0; i
< prim_count
; i
++) {
195 if ((prim
[i
].mode
& VBO_SAVE_PRIM_WEAK
) &&
196 _mesa_inside_begin_end(ctx
)) {
197 loopback_weak_prim(ctx
, &prim
[i
]);
199 loopback_prim(ctx
, buffer
, &prim
[i
], wrap_count
, vertex_size
, la
, nr
);