api.c revision d920fa9d0b54873d53f03a006d0fe3df11136b74 
1/**************************************************************************
2 *
3 * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
21 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
24 * USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28
29#include "config.h"
30#include <errno.h>
31#include <stdlib.h>
32#include <string.h>
33#include "internal.h"
34
35int kms_create(int fd, struct kms_driver **out)
36{
37	return linux_create(fd, out);
38}
39
40int kms_get_prop(struct kms_driver *kms, unsigned key, unsigned *out)
41{
42	switch (key) {
43	case KMS_MAX_SCANOUT_WIDTH:
44	case KMS_MAX_SCANOUT_HEIGHT:
45	case KMS_MIN_SCANOUT_WIDTH:
46	case KMS_MIN_SCANOUT_HEIGHT:
47	case KMS_MAX_CURSOR_WIDTH:
48	case KMS_MAX_CURSOR_HEIGHT:
49	case KMS_MIN_CURSOR_WIDTH:
50	case KMS_MIN_CURSOR_HEIGHT:
51		break;
52	default:
53		return -EINVAL;
54	}
55	return kms->get_prop(kms, key, out);
56}
57
58int kms_destroy(struct kms_driver **kms)
59{
60	if (!(*kms))
61		return 0;
62
63	free(*kms);
64	*kms = NULL;
65	return 0;
66}
67
68int kms_bo_create(struct kms_driver *kms, const unsigned *attr, struct kms_bo **out)
69{
70	unsigned width = 0;
71	unsigned height = 0;
72	enum kms_bo_type type = KMS_BO_TYPE_SCANOUT;
73	int i;
74
75	for (i = 0; attr[i];) {
76		unsigned key = attr[i++];
77		unsigned value = attr[i++];
78
79		switch (key) {
80		case KMS_WIDTH:
81			width = value;
82			break;
83		case KMS_HEIGHT:
84			height = value;
85			break;
86		case KMS_BO_TYPE:
87			type = value;
88			break;
89		default:
90			return EINVAL;
91		}
92	}
93
94	if (width == 0 || height == 0)
95		return -EINVAL;
96
97	return kms->bo_create(kms, width, height, type, attr, out);
98}
99
100int kms_bo_get_prop(struct kms_bo *bo, unsigned key, unsigned *out)
101{
102	switch (key) {
103	case KMS_PITCH:
104		*out = bo->pitch;
105		break;
106	case KMS_HANDLE:
107		*out = bo->handle;
108		break;
109	default:
110		return -EINVAL;
111	}
112
113	return 0;
114}
115
116int kms_bo_map(struct kms_bo *bo, void **out)
117{
118	return bo->kms->bo_map(bo, out);
119}
120
121int kms_bo_unmap(struct kms_bo *bo)
122{
123	return bo->kms->bo_unmap(bo);
124}
125
126int kms_bo_destroy(struct kms_bo **bo)
127{
128	int ret;
129
130	if (!(*bo))
131		return 0;
132
133	ret = (*bo)->kms->bo_destroy(*bo);
134	if (ret)
135		return ret;
136
137	*bo = NULL;
138	return 0;
139}
140