1 /*
2 * Copyright (c) 2012 Intel Corporation. All Rights Reserved.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the
6 * "Software"), to deal in the Software without restriction, including
7 * without limitation the rights to use, copy, modify, merge, publish,
8 * distribute, sub license, and/or sell copies of the Software, and to
9 * permit persons to whom the Software is furnished to do so, subject to
10 * the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the
13 * next paragraph) shall be included in all copies or substantial portions
14 * of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
19 * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
20 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
21 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
22 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23 */
24 #include "va_dricommon.h"
25
26 // X error trap
27 static int x11_error_code = 0;
28 static int (*old_error_handler)(Display *, XErrorEvent *);
29
30 static int
error_handler(Display * dpy,XErrorEvent * error)31 error_handler(Display *dpy, XErrorEvent *error)
32 {
33 x11_error_code = error->error_code;
34 return 0;
35 }
36
37 static void
x11_trap_errors(void)38 x11_trap_errors(void)
39 {
40 x11_error_code = 0;
41 old_error_handler = XSetErrorHandler(error_handler);
42 }
43
44 static int
x11_untrap_errors(void)45 x11_untrap_errors(void)
46 {
47 XSetErrorHandler(old_error_handler);
48 return x11_error_code;
49 }
50
51 static int
is_window(Display * dpy,Drawable drawable)52 is_window(Display *dpy, Drawable drawable)
53 {
54 XWindowAttributes wattr;
55
56 x11_trap_errors();
57 XGetWindowAttributes(dpy, drawable, &wattr);
58 return x11_untrap_errors() == 0;
59 }
60
61 static struct dri_drawable *
do_drawable_hash(VADriverContextP ctx,XID drawable)62 do_drawable_hash(VADriverContextP ctx, XID drawable)
63 {
64 struct dri_state *dri_state = (struct dri_state *)ctx->drm_state;
65 int index = drawable % DRAWABLE_HASH_SZ;
66 struct dri_drawable *dri_drawable = dri_state->drawable_hash[index];
67
68 while (dri_drawable) {
69 if (dri_drawable->x_drawable == drawable)
70 return dri_drawable;
71 dri_drawable = dri_drawable->next;
72 }
73
74 dri_drawable = dri_state->createDrawable(ctx, drawable);
75 dri_drawable->x_drawable = drawable;
76 dri_drawable->is_window = is_window(ctx->native_dpy, drawable);
77 dri_drawable->next = dri_state->drawable_hash[index];
78 dri_state->drawable_hash[index] = dri_drawable;
79
80 return dri_drawable;
81 }
82
83 void
free_drawable(VADriverContextP ctx,struct dri_drawable * dri_drawable)84 free_drawable(VADriverContextP ctx, struct dri_drawable* dri_drawable)
85 {
86 struct dri_state *dri_state = (struct dri_state *)ctx->drm_state;
87 int i = 0;
88
89 while (i++ < DRAWABLE_HASH_SZ) {
90 if (dri_drawable == dri_state->drawable_hash[i]) {
91 dri_state->destroyDrawable(ctx, dri_drawable);
92 dri_state->drawable_hash[i] = NULL;
93 }
94 }
95 }
96
97 void
free_drawable_hashtable(VADriverContextP ctx)98 free_drawable_hashtable(VADriverContextP ctx)
99 {
100 struct dri_state *dri_state = (struct dri_state *)ctx->drm_state;
101 int i;
102 struct dri_drawable *dri_drawable, *prev;
103
104 for (i = 0; i < DRAWABLE_HASH_SZ; i++) {
105 dri_drawable = dri_state->drawable_hash[i];
106
107 while (dri_drawable) {
108 prev = dri_drawable;
109 dri_drawable = prev->next;
110 dri_state->destroyDrawable(ctx, prev);
111 }
112
113 dri_state->drawable_hash[i] = NULL;
114 }
115 }
116
117 struct dri_drawable *
dri_get_drawable(VADriverContextP ctx,XID drawable)118 dri_get_drawable(VADriverContextP ctx, XID drawable)
119 {
120 return do_drawable_hash(ctx, drawable);
121 }
122
123 void
dri_swap_buffer(VADriverContextP ctx,struct dri_drawable * dri_drawable)124 dri_swap_buffer(VADriverContextP ctx, struct dri_drawable *dri_drawable)
125 {
126 struct dri_state *dri_state = (struct dri_state *)ctx->drm_state;
127
128 dri_state->swapBuffer(ctx, dri_drawable);
129 }
130
131 union dri_buffer *
dri_get_rendering_buffer(VADriverContextP ctx,struct dri_drawable * dri_drawable)132 dri_get_rendering_buffer(VADriverContextP ctx, struct dri_drawable *dri_drawable)
133 {
134 struct dri_state *dri_state = (struct dri_state *)ctx->drm_state;
135
136 return dri_state->getRenderingBuffer(ctx, dri_drawable);
137 }
138