1 /*
2 * Permission to use, copy, modify, distribute, and sell this software and its
3 * documentation for any purpose is hereby granted without fee, provided that
4 * the above copyright notice appear in all copies and that both that copyright
5 * notice and this permission notice appear in supporting documentation, and
6 * that the name of the copyright holders not be used in advertising or
7 * publicity pertaining to distribution of the software without specific,
8 * written prior permission. The copyright holders make no representations
9 * about the suitability of this software for any purpose. It is provided "as
10 * is" without express or implied warranty.
11 *
12 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
13 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
14 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
15 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
16 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
17 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
18 * OF THIS SOFTWARE.
19 */
20
21 #include <errno.h>
22 #include <stdbool.h>
23 #include <stdio.h>
24 #include <sys/types.h>
25
26 #include <GL/gl.h> /* dri_interface needs GL types */
27 #include <GL/internal/dri_interface.h>
28
29 #include "drm-uapi/drm_fourcc.h"
30 #include "loader_dri_helper.h"
31 #include "util/driconf.h"
32
loader_dri_create_image(__DRIscreen * screen,const __DRIimageExtension * image,uint32_t width,uint32_t height,uint32_t dri_format,uint32_t dri_usage,const uint64_t * modifiers,unsigned int modifiers_count,void * loaderPrivate)33 __DRIimage *loader_dri_create_image(__DRIscreen *screen,
34 const __DRIimageExtension *image,
35 uint32_t width, uint32_t height,
36 uint32_t dri_format, uint32_t dri_usage,
37 const uint64_t *modifiers,
38 unsigned int modifiers_count,
39 void *loaderPrivate)
40 {
41 if (modifiers && modifiers_count > 0 &&
42 image->base.version > 14 && image->createImageWithModifiers) {
43 bool has_valid_modifier = false;
44 int i;
45
46 /* It's acceptable to create an image with INVALID modifier in the list,
47 * but it cannot be on the only modifier (since it will certainly fail
48 * later). While we could easily catch this after modifier creation, doing
49 * the check here is a convenient debug check likely pointing at whatever
50 * interface the client is using to build its modifier list.
51 */
52 for (i = 0; i < modifiers_count; i++) {
53 if (modifiers[i] != DRM_FORMAT_MOD_INVALID) {
54 has_valid_modifier = true;
55 break;
56 }
57 }
58 if (!has_valid_modifier)
59 return NULL;
60
61 if (image->base.version >= 19 && image->createImageWithModifiers2)
62 return image->createImageWithModifiers2(screen, width, height,
63 dri_format, modifiers,
64 modifiers_count, dri_usage,
65 loaderPrivate);
66 else
67 return image->createImageWithModifiers(screen, width, height,
68 dri_format, modifiers,
69 modifiers_count, loaderPrivate);
70 }
71
72 /* No modifier given or fallback to the legacy createImage allowed */
73 return image->createImage(screen, width, height, dri_format, dri_usage,
74 loaderPrivate);
75 }
76
dri_vblank_mode(__DRIscreen * driScreen,const __DRI2configQueryExtension * config)77 static int dri_vblank_mode(__DRIscreen *driScreen, const __DRI2configQueryExtension *config)
78 {
79 GLint vblank_mode = DRI_CONF_VBLANK_DEF_INTERVAL_1;
80
81 if (config)
82 config->configQueryi(driScreen, "vblank_mode", &vblank_mode);
83
84 return vblank_mode;
85 }
86
dri_get_initial_swap_interval(__DRIscreen * driScreen,const __DRI2configQueryExtension * config)87 int dri_get_initial_swap_interval(__DRIscreen *driScreen,
88 const __DRI2configQueryExtension *config)
89 {
90 int vblank_mode = dri_vblank_mode(driScreen, config);
91
92 switch (vblank_mode) {
93 case DRI_CONF_VBLANK_NEVER:
94 case DRI_CONF_VBLANK_DEF_INTERVAL_0:
95 return 0;
96 case DRI_CONF_VBLANK_DEF_INTERVAL_1:
97 case DRI_CONF_VBLANK_ALWAYS_SYNC:
98 default:
99 return 1;
100 }
101 }
102
dri_valid_swap_interval(__DRIscreen * driScreen,const __DRI2configQueryExtension * config,int interval)103 bool dri_valid_swap_interval(__DRIscreen *driScreen,
104 const __DRI2configQueryExtension *config, int interval)
105 {
106 int vblank_mode = dri_vblank_mode(driScreen, config);
107
108 switch (vblank_mode) {
109 case DRI_CONF_VBLANK_NEVER:
110 if (interval != 0)
111 return false;
112 break;
113 case DRI_CONF_VBLANK_ALWAYS_SYNC:
114 if (interval <= 0)
115 return false;
116 break;
117 default:
118 break;
119 }
120
121 return true;
122 }
123