2 * Copyright (C) 2009 Francisco Jerez.
5 * Permission is hereby granted, free of charge, to any person obtaining
6 * a copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sublicense, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial
15 * portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 #include "nouveau_driver.h"
28 #include "nouveau_bufferobj.h"
29 #include "nouveau_context.h"
31 #include "main/bufferobj.h"
34 get_bufferobj_map(struct gl_buffer_object
*obj
, unsigned flags
)
36 struct nouveau_bufferobj
*nbo
= to_nouveau_bufferobj(obj
);
42 nouveau_bo_map(nbo
->bo
, flags
);
44 nouveau_bo_unmap(nbo
->bo
);
50 static struct gl_buffer_object
*
51 nouveau_bufferobj_new(struct gl_context
*ctx
, GLuint buffer
, GLenum target
)
53 struct nouveau_bufferobj
*nbo
;
55 nbo
= CALLOC_STRUCT(nouveau_bufferobj
);
59 _mesa_initialize_buffer_object(&nbo
->base
, buffer
, target
);
65 nouveau_bufferobj_del(struct gl_context
*ctx
, struct gl_buffer_object
*obj
)
67 struct nouveau_bufferobj
*nbo
= to_nouveau_bufferobj(obj
);
69 nouveau_bo_ref(NULL
, &nbo
->bo
);
75 nouveau_bufferobj_data(struct gl_context
*ctx
, GLenum target
, GLsizeiptrARB size
,
76 const GLvoid
*data
, GLenum usage
,
77 struct gl_buffer_object
*obj
)
79 struct nouveau_bufferobj
*nbo
= to_nouveau_bufferobj(obj
);
85 /* Free previous storage */
86 nouveau_bo_ref(NULL
, &nbo
->bo
);
89 if (target
== GL_ELEMENT_ARRAY_BUFFER_ARB
||
90 (size
< 512 && usage
== GL_DYNAMIC_DRAW_ARB
) ||
91 context_chipset(ctx
) < 0x10) {
92 /* Heuristic: keep it in system ram */
93 nbo
->sys
= MALLOC(size
);
96 /* Get a hardware BO */
97 ret
= nouveau_bo_new(context_dev(ctx
),
98 NOUVEAU_BO_GART
| NOUVEAU_BO_MAP
, 0,
104 memcpy(get_bufferobj_map(obj
, NOUVEAU_BO_WR
), data
, size
);
110 nouveau_bufferobj_subdata(struct gl_context
*ctx
, GLenum target
, GLintptrARB offset
,
111 GLsizeiptrARB size
, const GLvoid
*data
,
112 struct gl_buffer_object
*obj
)
114 memcpy(get_bufferobj_map(obj
, NOUVEAU_BO_WR
) + offset
, data
, size
);
118 nouveau_bufferobj_get_subdata(struct gl_context
*ctx
, GLenum target
, GLintptrARB offset
,
119 GLsizeiptrARB size
, GLvoid
*data
,
120 struct gl_buffer_object
*obj
)
122 memcpy(data
, get_bufferobj_map(obj
, NOUVEAU_BO_RD
) + offset
, size
);
126 nouveau_bufferobj_map(struct gl_context
*ctx
, GLenum target
, GLenum access
,
127 struct gl_buffer_object
*obj
)
131 if (access
== GL_READ_ONLY_ARB
||
132 access
== GL_READ_WRITE_ARB
)
133 flags
|= GL_MAP_READ_BIT
;
134 if (access
== GL_WRITE_ONLY_ARB
||
135 access
== GL_READ_WRITE_ARB
)
136 flags
|= GL_MAP_WRITE_BIT
;
138 return ctx
->Driver
.MapBufferRange(ctx
, target
, 0, obj
->Size
, flags
,
143 nouveau_bufferobj_map_range(struct gl_context
*ctx
, GLenum target
, GLintptr offset
,
144 GLsizeiptr length
, GLbitfield access
,
145 struct gl_buffer_object
*obj
)
150 assert(!obj
->Pointer
);
152 if (access
& GL_MAP_READ_BIT
)
153 flags
|= NOUVEAU_BO_RD
;
154 if (access
& GL_MAP_WRITE_BIT
)
155 flags
|= NOUVEAU_BO_WR
;
156 if (access
& GL_MAP_UNSYNCHRONIZED_BIT
)
157 flags
|= NOUVEAU_BO_NOSYNC
;
159 map
= get_bufferobj_map(obj
, flags
);
163 obj
->Pointer
= map
+ offset
;
164 obj
->Offset
= offset
;
165 obj
->Length
= length
;
166 obj
->AccessFlags
= access
;
172 nouveau_bufferobj_unmap(struct gl_context
*ctx
, GLenum target
, struct gl_buffer_object
*obj
)
174 assert(obj
->Pointer
);
179 obj
->AccessFlags
= 0;
185 nouveau_bufferobj_functions_init(struct dd_function_table
*functions
)
187 functions
->NewBufferObject
= nouveau_bufferobj_new
;
188 functions
->DeleteBuffer
= nouveau_bufferobj_del
;
189 functions
->BufferData
= nouveau_bufferobj_data
;
190 functions
->BufferSubData
= nouveau_bufferobj_subdata
;
191 functions
->GetBufferSubData
= nouveau_bufferobj_get_subdata
;
192 functions
->MapBuffer
= nouveau_bufferobj_map
;
193 functions
->MapBufferRange
= nouveau_bufferobj_map_range
;
194 functions
->UnmapBuffer
= nouveau_bufferobj_unmap
;