1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
|
/**************************************************************************
*
* Copyright 2006 Tungsten Graphics, Inc., Cedar Park, Texas.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
/*
* Authors:
* Keith Whitwell <keith@tungstengraphics.com>
* Michel Dänzer <michel@tungstengraphics.com>
*/
#include "pipe/p_context.h"
#include "pipe/p_defines.h"
#include "util/u_inlines.h"
#include "util/u_math.h"
#include "util/u_memory.h"
#include "i915_context.h"
#include "i915_resource.h"
static boolean
i915_buffer_get_handle(struct pipe_screen *screen,
struct pipe_resource *resource,
struct winsys_handle *handle)
{
return FALSE;
}
static void
i915_buffer_destroy(struct pipe_screen *screen,
struct pipe_resource *resource)
{
struct i915_buffer *buffer = i915_buffer(resource);
if (buffer->free_on_destroy)
align_free(buffer->data);
FREE(buffer);
}
static struct pipe_transfer *
i915_get_transfer(struct pipe_context *pipe,
struct pipe_resource *resource,
unsigned level,
unsigned usage,
const struct pipe_box *box)
{
struct i915_context *i915 = i915_context(pipe);
struct pipe_transfer *transfer = util_slab_alloc(&i915->transfer_pool);
if (transfer == NULL)
return NULL;
transfer->resource = resource;
transfer->level = level;
transfer->usage = usage;
transfer->box = *box;
/* Note strides are zero, this is ok for buffers, but not for
* textures 2d & higher at least.
*/
return transfer;
}
static void
i915_transfer_destroy(struct pipe_context *pipe,
struct pipe_transfer *transfer)
{
struct i915_context *i915 = i915_context(pipe);
util_slab_free(&i915->transfer_pool, transfer);
}
static void *
i915_buffer_transfer_map( struct pipe_context *pipe,
struct pipe_transfer *transfer )
{
struct i915_buffer *buffer = i915_buffer(transfer->resource);
return buffer->data + transfer->box.x;
}
static void
i915_buffer_transfer_inline_write( struct pipe_context *rm_ctx,
struct pipe_resource *resource,
unsigned level,
unsigned usage,
const struct pipe_box *box,
const void *data,
unsigned stride,
unsigned layer_stride)
{
struct i915_buffer *buffer = i915_buffer(resource);
memcpy(buffer->data + box->x,
data,
box->width);
}
struct u_resource_vtbl i915_buffer_vtbl =
{
i915_buffer_get_handle, /* get_handle */
i915_buffer_destroy, /* resource_destroy */
i915_get_transfer, /* get_transfer */
i915_transfer_destroy, /* transfer_destroy */
i915_buffer_transfer_map, /* transfer_map */
u_default_transfer_flush_region, /* transfer_flush_region */
u_default_transfer_unmap, /* transfer_unmap */
i915_buffer_transfer_inline_write /* transfer_inline_write */
};
struct pipe_resource *
i915_buffer_create(struct pipe_screen *screen,
const struct pipe_resource *template)
{
struct i915_buffer *buf = CALLOC_STRUCT(i915_buffer);
if (!buf)
return NULL;
buf->b.b = *template;
buf->b.vtbl = &i915_buffer_vtbl;
pipe_reference_init(&buf->b.b.reference, 1);
buf->b.b.screen = screen;
buf->data = align_malloc(template->width0, 16);
buf->free_on_destroy = TRUE;
if (!buf->data)
goto err;
return &buf->b.b;
err:
FREE(buf);
return NULL;
}
struct pipe_resource *
i915_user_buffer_create(struct pipe_screen *screen,
void *ptr,
unsigned bytes,
unsigned bind)
{
struct i915_buffer *buf = CALLOC_STRUCT(i915_buffer);
if (!buf)
return NULL;
pipe_reference_init(&buf->b.b.reference, 1);
buf->b.vtbl = &i915_buffer_vtbl;
buf->b.b.screen = screen;
buf->b.b.format = PIPE_FORMAT_R8_UNORM; /* ?? */
buf->b.b.usage = PIPE_USAGE_IMMUTABLE;
buf->b.b.bind = bind;
buf->b.b.flags = 0;
buf->b.b.width0 = bytes;
buf->b.b.height0 = 1;
buf->b.b.depth0 = 1;
buf->b.b.array_size = 1;
buf->b.b.user_ptr = ptr;
buf->data = ptr;
buf->free_on_destroy = FALSE;
return &buf->b.b;
}
|