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
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
|
#include <stdio.h>
#include "state_tracker/drm_api.h"
#include "intel_drm_winsys.h"
#include "util/u_memory.h"
#include "i915/i915_context.h"
#include "i915/i915_screen.h"
#include "trace/tr_drm.h"
/*
* Helper functions
*/
static void
intel_drm_get_device_id(unsigned int *device_id)
{
char path[512];
FILE *file;
void *shutup_gcc;
/*
* FIXME: Fix this up to use a drm ioctl or whatever.
*/
snprintf(path, sizeof(path), "/sys/class/drm/card0/device/device");
file = fopen(path, "r");
if (!file) {
return;
}
shutup_gcc = fgets(path, sizeof(path), file);
(void) shutup_gcc;
sscanf(path, "%x", device_id);
fclose(file);
}
static struct intel_buffer *
intel_drm_buffer_from_handle(struct intel_drm_winsys *idws,
const char* name, unsigned handle)
{
struct intel_drm_buffer *buf = CALLOC_STRUCT(intel_drm_buffer);
uint32_t tile = 0, swizzle = 0;
if (!buf)
return NULL;
buf->magic = 0xDEAD1337;
buf->bo = drm_intel_bo_gem_create_from_name(idws->pools.gem, name, handle);
buf->flinked = TRUE;
buf->flink = handle;
if (!buf->bo)
goto err;
drm_intel_bo_get_tiling(buf->bo, &tile, &swizzle);
if (tile != INTEL_TILE_NONE)
buf->map_gtt = TRUE;
return (struct intel_buffer *)buf;
err:
FREE(buf);
return NULL;
}
/*
* Exported functions
*/
static struct pipe_texture *
intel_drm_texture_from_shared_handle(struct drm_api *api,
struct pipe_screen *screen,
struct pipe_texture *templ,
const char* name,
unsigned pitch,
unsigned handle)
{
struct intel_drm_winsys *idws = intel_drm_winsys(i915_screen(screen)->iws);
struct intel_buffer *buffer;
buffer = intel_drm_buffer_from_handle(idws, name, handle);
if (!buffer)
return NULL;
return i915_texture_blanket_intel(screen, templ, pitch, buffer);
}
static boolean
intel_drm_shared_handle_from_texture(struct drm_api *api,
struct pipe_screen *screen,
struct pipe_texture *texture,
unsigned *pitch,
unsigned *handle)
{
struct intel_drm_buffer *buf = NULL;
struct intel_buffer *buffer = NULL;
if (!i915_get_texture_buffer_intel(texture, &buffer, pitch))
return FALSE;
buf = intel_drm_buffer(buffer);
if (!buf->flinked) {
if (drm_intel_bo_flink(buf->bo, &buf->flink))
return FALSE;
buf->flinked = TRUE;
}
*handle = buf->flink;
return TRUE;
}
static boolean
intel_drm_local_handle_from_texture(struct drm_api *api,
struct pipe_screen *screen,
struct pipe_texture *texture,
unsigned *pitch,
unsigned *handle)
{
struct intel_buffer *buffer = NULL;
if (!i915_get_texture_buffer_intel(texture, &buffer, pitch))
return FALSE;
*handle = intel_drm_buffer(buffer)->bo->handle;
return TRUE;
}
static void
intel_drm_winsys_destroy(struct intel_winsys *iws)
{
struct intel_drm_winsys *idws = intel_drm_winsys(iws);
drm_intel_bufmgr_destroy(idws->pools.gem);
FREE(idws);
}
static struct pipe_screen *
intel_drm_create_screen(struct drm_api *api, int drmFD,
struct drm_create_screen_arg *arg)
{
struct intel_drm_winsys *idws;
unsigned int deviceID;
if (arg != NULL) {
switch(arg->mode) {
case DRM_CREATE_NORMAL:
break;
default:
return NULL;
}
}
idws = CALLOC_STRUCT(intel_drm_winsys);
if (!idws)
return NULL;
intel_drm_get_device_id(&deviceID);
intel_drm_winsys_init_batchbuffer_functions(idws);
intel_drm_winsys_init_buffer_functions(idws);
intel_drm_winsys_init_fence_functions(idws);
idws->fd = drmFD;
idws->id = deviceID;
idws->max_batch_size = 16 * 4096;
idws->base.destroy = intel_drm_winsys_destroy;
idws->pools.gem = drm_intel_bufmgr_gem_init(idws->fd, idws->max_batch_size);
drm_intel_bufmgr_gem_enable_reuse(idws->pools.gem);
idws->softpipe = FALSE;
idws->dump_cmd = debug_get_bool_option("INTEL_DUMP_CMD", FALSE);
return i915_create_screen(&idws->base, deviceID);
}
static struct pipe_context *
intel_drm_create_context(struct drm_api *api, struct pipe_screen *screen)
{
return i915_create_context(screen);
}
static void
destroy(struct drm_api *api)
{
}
struct drm_api intel_drm_api =
{
.name = "i915",
.driver_name = "i915",
.create_context = intel_drm_create_context,
.create_screen = intel_drm_create_screen,
.texture_from_shared_handle = intel_drm_texture_from_shared_handle,
.shared_handle_from_texture = intel_drm_shared_handle_from_texture,
.local_handle_from_texture = intel_drm_local_handle_from_texture,
.destroy = destroy,
};
struct drm_api *
drm_api_create()
{
return trace_drm_create(&intel_drm_api);
}
|
