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drm_hwcomposer: Fix header compilation for C
[android-x86/external-drm_hwcomposer.git] / drm_hwcomposer.h
1 /*
2  * Copyright (C) 2015 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16
17 #include <stdbool.h>
18 #include <stdint.h>
19
20 struct hwc_import_context;
21
22 enum {
23         /* perform(const struct gralloc_module_t *mod,
24          *         int op,
25          *         int drm_fd,
26          *         buffer_handle_t buffer,
27          *         struct hwc_drm_bo *bo);
28          */
29         GRALLOC_MODULE_PERFORM_DRM_IMPORT = 0xffeeff00,
30
31         /* perform(const struct gralloc_module_t *mod,
32          *         int op,
33          *         buffer_handle_t buffer,
34          *         void (*free_callback)(void *),
35          *         void *priv);
36          */
37         GRALLOC_MODULE_PERFORM_SET_IMPORTER_PRIVATE = 0xffeeff01,
38
39         /* perform(const struct gralloc_module_t *mod,
40          *         int op,
41          *         buffer_handle_t buffer,
42          *         void (*free_callback)(void *),
43          *         void **priv);
44          */
45         GRALLOC_MODULE_PERFORM_GET_IMPORTER_PRIVATE = 0xffeeff02,
46 };
47
48 struct hwc_drm_bo {
49         uint32_t width;
50         uint32_t height;
51         uint32_t format;        /* DRM_FORMAT_* from drm_fourcc.h */
52         uint32_t pitches[4];
53         uint32_t offsets[4];
54         uint32_t gem_handles[4];
55         uint32_t fb_id;
56         int acquire_fence_fd;
57 };
58
59 int hwc_import_init(struct hwc_import_context **ctx);
60 int hwc_import_destroy(struct hwc_import_context *ctx);
61
62 int hwc_import_bo_create(int fd, struct hwc_import_context *ctx,
63                         buffer_handle_t buf, struct hwc_drm_bo *bo);
64 bool hwc_import_bo_release(int fd, struct hwc_import_context *ctx,
65                         struct hwc_drm_bo *bo);