1 /*
2 * Copyright © 2014 NVIDIA Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 */
23
24 #ifdef HAVE_CONFIG_H
25 #include "config.h"
26 #endif
27
28 #include <errno.h>
29 #include <string.h>
30
31 #include "libkms-test.h"
32
kms_plane_probe(struct kms_plane * plane)33 static int kms_plane_probe(struct kms_plane *plane)
34 {
35 struct kms_device *device = plane->device;
36 drmModeObjectPropertiesPtr props;
37 drmModePlane *p;
38 unsigned int i;
39
40 p = drmModeGetPlane(device->fd, plane->id);
41 if (!p)
42 return -ENODEV;
43
44 /* TODO: allow dynamic assignment to CRTCs */
45 if (p->crtc_id == 0) {
46 for (i = 0; i < device->num_crtcs; i++) {
47 if (p->possible_crtcs & (1 << i)) {
48 p->crtc_id = device->crtcs[i]->id;
49 break;
50 }
51 }
52 }
53
54 for (i = 0; i < device->num_crtcs; i++) {
55 if (device->crtcs[i]->id == p->crtc_id) {
56 plane->crtc = device->crtcs[i];
57 break;
58 }
59 }
60
61 plane->formats = calloc(p->count_formats, sizeof(uint32_t));
62 if (!plane->formats)
63 return -ENOMEM;
64
65 for (i = 0; i < p->count_formats; i++)
66 plane->formats[i] = p->formats[i];
67
68 plane->num_formats = p->count_formats;
69
70 drmModeFreePlane(p);
71
72 props = drmModeObjectGetProperties(device->fd, plane->id,
73 DRM_MODE_OBJECT_PLANE);
74 if (!props)
75 return -ENODEV;
76
77 for (i = 0; i < props->count_props; i++) {
78 drmModePropertyPtr prop;
79
80 prop = drmModeGetProperty(device->fd, props->props[i]);
81 if (prop) {
82 if (strcmp(prop->name, "type") == 0)
83 plane->type = props->prop_values[i];
84
85 drmModeFreeProperty(prop);
86 }
87 }
88
89 drmModeFreeObjectProperties(props);
90
91 return 0;
92 }
93
kms_plane_create(struct kms_device * device,uint32_t id)94 struct kms_plane *kms_plane_create(struct kms_device *device, uint32_t id)
95 {
96 struct kms_plane *plane;
97
98 plane = calloc(1, sizeof(*plane));
99 if (!plane)
100 return NULL;
101
102 plane->device = device;
103 plane->id = id;
104
105 kms_plane_probe(plane);
106
107 return plane;
108 }
109
kms_plane_free(struct kms_plane * plane)110 void kms_plane_free(struct kms_plane *plane)
111 {
112 free(plane);
113 }
114
kms_plane_set(struct kms_plane * plane,struct kms_framebuffer * fb,unsigned int x,unsigned int y)115 int kms_plane_set(struct kms_plane *plane, struct kms_framebuffer *fb,
116 unsigned int x, unsigned int y)
117 {
118 struct kms_device *device = plane->device;
119 int err;
120
121 err = drmModeSetPlane(device->fd, plane->id, plane->crtc->id, fb->id,
122 0, x, y, fb->width, fb->height, 0 << 16,
123 0 << 16, fb->width << 16, fb->height << 16);
124 if (err < 0)
125 return -errno;
126
127 return 0;
128 }
129
kms_plane_supports_format(struct kms_plane * plane,uint32_t format)130 bool kms_plane_supports_format(struct kms_plane *plane, uint32_t format)
131 {
132 unsigned int i;
133
134 for (i = 0; i < plane->num_formats; i++)
135 if (plane->formats[i] == format)
136 return true;
137
138 return false;
139 }
140