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 if (dri_state->createDrawable) {
75 dri_drawable = dri_state->createDrawable(ctx, drawable);
76 }
77 if (dri_drawable) {
78 dri_drawable->x_drawable = drawable;
79 dri_drawable->is_window = is_window(ctx->native_dpy, drawable);
80 dri_drawable->next = dri_state->drawable_hash[index];
81 dri_state->drawable_hash[index] = dri_drawable;
82 }
83
84 return dri_drawable;
85 }
86
87 void
va_dri_free_drawable(VADriverContextP ctx,struct dri_drawable * dri_drawable)88 va_dri_free_drawable(VADriverContextP ctx, struct dri_drawable* dri_drawable)
89 {
90 struct dri_state *dri_state = (struct dri_state *)ctx->drm_state;
91 int i = 0;
92
93 while (i < DRAWABLE_HASH_SZ) {
94 if (dri_drawable == dri_state->drawable_hash[i]) {
95 dri_state->destroyDrawable(ctx, dri_drawable);
96 dri_state->drawable_hash[i] = NULL;
97 return;
98 }
99 i++;
100 }
101 }
102
103 void
va_dri_free_drawable_hashtable(VADriverContextP ctx)104 va_dri_free_drawable_hashtable(VADriverContextP ctx)
105 {
106 struct dri_state *dri_state = (struct dri_state *)ctx->drm_state;
107 int i;
108 struct dri_drawable *dri_drawable, *prev;
109
110 for (i = 0; i < DRAWABLE_HASH_SZ; i++) {
111 dri_drawable = dri_state->drawable_hash[i];
112
113 while (dri_drawable) {
114 prev = dri_drawable;
115 dri_drawable = prev->next;
116 dri_state->destroyDrawable(ctx, prev);
117 }
118
119 dri_state->drawable_hash[i] = NULL;
120 }
121 }
122
123 struct dri_drawable *
va_dri_get_drawable(VADriverContextP ctx,XID drawable)124 va_dri_get_drawable(VADriverContextP ctx, XID drawable)
125 {
126 return do_drawable_hash(ctx, drawable);
127 }
128
129 void
va_dri_swap_buffer(VADriverContextP ctx,struct dri_drawable * dri_drawable)130 va_dri_swap_buffer(VADriverContextP ctx, struct dri_drawable *dri_drawable)
131 {
132 struct dri_state *dri_state = (struct dri_state *)ctx->drm_state;
133
134 dri_state->swapBuffer(ctx, dri_drawable);
135 }
136
137 union dri_buffer *
va_dri_get_rendering_buffer(VADriverContextP ctx,struct dri_drawable * dri_drawable)138 va_dri_get_rendering_buffer(VADriverContextP ctx, struct dri_drawable *dri_drawable)
139 {
140 struct dri_state *dri_state = (struct dri_state *)ctx->drm_state;
141
142 return dri_state->getRenderingBuffer(ctx, dri_drawable);
143 }
144