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
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
|
/*
* Copyright (c) 2012 Intel Corporation. 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 PRECISION INSIGHT 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.
*/
#include <stdlib.h>
#include <fcntl.h>
#include <unistd.h>
#include <assert.h>
#include <xf86drm.h>
#include <X11/Xlibint.h>
#include <X11/Xlib.h>
#include "va.h"
#include "va_backend.h"
#include "va_dri2.h"
#include "va_dri2tokens.h"
#include "va_dricommon.h"
#define __DRI_BUFFER_FRONT_LEFT 0
#define __DRI_BUFFER_BACK_LEFT 1
#define __DRI_BUFFER_FRONT_RIGHT 2
#define __DRI_BUFFER_BACK_RIGHT 3
#define __DRI_BUFFER_DEPTH 4
#define __DRI_BUFFER_STENCIL 5
#define __DRI_BUFFER_ACCUM 6
#define __DRI_BUFFER_FAKE_FRONT_LEFT 7
#define __DRI_BUFFER_FAKE_FRONT_RIGHT 8
struct dri2_drawable
{
struct dri_drawable base;
union dri_buffer buffers[5];
int width;
int height;
int has_backbuffer;
int back_index;
int front_index;
};
static int gsDRI2SwapAvailable;
static struct dri_drawable *
dri2CreateDrawable(VADriverContextP ctx, XID x_drawable)
{
struct dri2_drawable *dri2_drawable;
dri2_drawable = calloc(1, sizeof(*dri2_drawable));
if (!dri2_drawable)
return NULL;
dri2_drawable->base.x_drawable = x_drawable;
dri2_drawable->base.x = 0;
dri2_drawable->base.y = 0;
VA_DRI2CreateDrawable(ctx->native_dpy, x_drawable);
return &dri2_drawable->base;
}
static void
dri2DestroyDrawable(VADriverContextP ctx, struct dri_drawable *dri_drawable)
{
VA_DRI2DestroyDrawable(ctx->native_dpy, dri_drawable->x_drawable);
free(dri_drawable);
}
static void
dri2SwapBuffer(VADriverContextP ctx, struct dri_drawable *dri_drawable)
{
struct dri2_drawable *dri2_drawable = (struct dri2_drawable *)dri_drawable;
XRectangle xrect;
XserverRegion region;
if (dri2_drawable->has_backbuffer) {
if (gsDRI2SwapAvailable) {
CARD64 ret;
VA_DRI2SwapBuffers(ctx->native_dpy, dri_drawable->x_drawable,
0, 1, 0,
&ret);
} else {
xrect.x = 0;
xrect.y = 0;
xrect.width = dri2_drawable->width;
xrect.height = dri2_drawable->height;
region = XFixesCreateRegion(ctx->native_dpy, &xrect, 1);
VA_DRI2CopyRegion(ctx->native_dpy, dri_drawable->x_drawable, region,
DRI2BufferFrontLeft, DRI2BufferBackLeft);
XFixesDestroyRegion(ctx->native_dpy, region);
}
}
}
static union dri_buffer *
dri2GetRenderingBuffer(VADriverContextP ctx, struct dri_drawable *dri_drawable)
{
struct dri2_drawable *dri2_drawable = (struct dri2_drawable *)dri_drawable;
int i;
int count;
unsigned int attachments[5];
VA_DRI2Buffer *buffers;
i = 0;
if (dri_drawable->is_window)
attachments[i++] = __DRI_BUFFER_BACK_LEFT;
else
attachments[i++] = __DRI_BUFFER_FRONT_LEFT;
buffers = VA_DRI2GetBuffers(ctx->native_dpy, dri_drawable->x_drawable,
&dri2_drawable->width, &dri2_drawable->height,
attachments, i, &count);
if (buffers == NULL)
return NULL;
dri2_drawable->has_backbuffer = 0;
for (i = 0; i < count; i++) {
dri2_drawable->buffers[i].dri2.attachment = buffers[i].attachment;
dri2_drawable->buffers[i].dri2.name = buffers[i].name;
dri2_drawable->buffers[i].dri2.pitch = buffers[i].pitch;
dri2_drawable->buffers[i].dri2.cpp = buffers[i].cpp;
dri2_drawable->buffers[i].dri2.flags = buffers[i].flags;
if (buffers[i].attachment == __DRI_BUFFER_BACK_LEFT) {
dri2_drawable->has_backbuffer = 1;
dri2_drawable->back_index = i;
}
if (buffers[i].attachment == __DRI_BUFFER_FRONT_LEFT)
dri2_drawable->front_index = i;
}
dri_drawable->width = dri2_drawable->width;
dri_drawable->height = dri2_drawable->height;
Xfree(buffers);
if (dri2_drawable->has_backbuffer)
return &dri2_drawable->buffers[dri2_drawable->back_index];
return &dri2_drawable->buffers[dri2_drawable->front_index];
}
static void
dri2Close(VADriverContextP ctx)
{
struct dri_state *dri_state = (struct dri_state *)ctx->drm_state;
va_dri_free_drawable_hashtable(ctx);
if (dri_state->base.fd >= 0)
close(dri_state->base.fd);
}
Bool
va_isDRI2Connected(VADriverContextP ctx, char **driver_name)
{
struct dri_state *dri_state = (struct dri_state *)ctx->drm_state;
int major, minor;
int error_base;
int event_base;
char *device_name = NULL;
drm_magic_t magic;
*driver_name = NULL;
if (!VA_DRI2QueryExtension(ctx->native_dpy, &event_base, &error_base))
goto err_out;
if (!VA_DRI2QueryVersion(ctx->native_dpy, &major, &minor))
goto err_out;
if (!VA_DRI2Connect(ctx->native_dpy, RootWindow(ctx->native_dpy, ctx->x11_screen),
driver_name, &device_name))
goto err_out;
if ((dri_state->base.fd != -1) && (dri_state->base.auth_type != VA_NONE))
goto success_out;
dri_state->base.fd = open(device_name, O_RDWR);
if (dri_state->base.fd < 0)
goto err_out;
if (drmGetMagic(dri_state->base.fd, &magic))
goto err_out;
if (!VA_DRI2Authenticate(ctx->native_dpy, RootWindow(ctx->native_dpy, ctx->x11_screen),
magic))
goto err_out;
dri_state->base.auth_type = VA_DRI2;
dri_state->createDrawable = dri2CreateDrawable;
dri_state->destroyDrawable = dri2DestroyDrawable;
dri_state->swapBuffer = dri2SwapBuffer;
dri_state->getRenderingBuffer = dri2GetRenderingBuffer;
dri_state->close = dri2Close;
gsDRI2SwapAvailable = (minor >= 2);
success_out:
Xfree(device_name);
return True;
err_out:
if (device_name)
Xfree(device_name);
if (*driver_name)
Xfree(*driver_name);
if (dri_state->base.fd >= 0)
close(dri_state->base.fd);
*driver_name = NULL;
dri_state->base.fd = -1;
return False;
}
|
