1 /**************************************************************************
5 Copyright 2015 Samsung Electronics co., Ltd. All Rights Reserved.
7 Contact: Eunchul Kim <chulspro.kim@samsung.com>,
8 JinYoung Jeon <jy0.jeon@samsung.com>,
9 Taeheon Kim <th908.kim@samsung.com>,
10 YoungJun Cho <yj44.cho@samsung.com>,
11 SooChan Lim <sc1.lim@samsung.com>,
12 Boram Park <sc1.lim@samsung.com>
14 Permission is hereby granted, free of charge, to any person obtaining a
15 copy of this software and associated documentation files (the
16 "Software"), to deal in the Software without restriction, including
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19 permit persons to whom the Software is furnished to do so, subject to
20 the following conditions:
22 The above copyright notice and this permission notice (including the
23 next paragraph) shall be included in all copies or substantial portions
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27 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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31 TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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34 **************************************************************************/
36 #ifndef _TDM_HELPER_H_
37 #define _TDM_HELPER_H_
39 #include "tdm_types.h"
40 #include <tbm_surface.h>
48 * @brief The header file to help a vendor to implement a backend module
50 * tdm_helper_drm_fd is external drm_fd which is opened by ecore_drm.
51 * This is very @b TRICKY!! But we have no choice at this time because ecore_drm
52 * doesn't use tdm yet. When we make ecore_drm use tdm, tdm_helper_drm_fd will
55 * If tdm_helper_drm_fd is more than -1, a tdm backend module @b SHOULDN't call
56 * drmWaitVBlank by itself because a DRM vblank event will be handled in ecore_drm
57 * internally. In this case, a tdm backend module NEVER get a DRM vblank event.
58 * If a tdm backend module need to handle a vendor specific DRM event,
59 * drmAddUserHandler() of libdrm makes possible that a tdm backend module handle
64 _tdm_drm_user_handler(struct drm_event *event)
66 if (event->type != DRM_VENDOR_XXX_EVENT)
69 //handling a vendor event
76 drm_data->drm_fd = -1;
77 if (tdm_helper_drm_fd >= 0)
79 drm_data->drm_fd = tdm_helper_drm_fd;
80 drmAddUserHandler(tdm_helper_drm_fd, _tdm_drm_user_handler);
83 if (drm_data->drm_fd < 0)
84 drm_data->drm_fd = _tdm_drm_open_drm();
88 drmRemoveUserHandler(tdm_helper_drm_fd, _tdm_drm_user_handler);
91 if (tdm_helper_drm_fd == -1)
94 if (drmWaitVBlank(fd, &vbl))
95 return TDM_ERROR_OPERATION_FAILED;
102 extern int tdm_helper_drm_fd;
105 * @brief Dump a buffer
107 * This function supports only if a buffer has below formats.
108 * - TBM_FORMAT_ARGB8888
109 * - TBM_FORMAT_XRGB8888
110 * - TBM_FORMAT_YVU420
111 * - TBM_FORMAT_YUV420
116 * The filename extension should be "png" for TBM_FORMAT_ARGB8888 and TBM_FORMAT_XRGB8888
117 * or "yuv" for YUV formats.
118 * @param[in] buffer A TDM buffer
119 * @param[in] file The path of file.
121 void tdm_helper_dump_buffer(tbm_surface_h buffer, const char *file);
127 #endif /* _TDM_HELPER_H_ */