1 #include "include/dvr/dvr_api.h" 2 3 #include <errno.h> 4 #include <utils/Log.h> 5 6 #include <algorithm> 7 8 // Headers from libdvr 9 #include <dvr/dvr_buffer.h> 10 #include <dvr/dvr_buffer_queue.h> 11 #include <dvr/dvr_configuration_data.h> 12 #include <dvr/dvr_display_manager.h> 13 #include <dvr/dvr_performance.h> 14 #include <dvr/dvr_surface.h> 15 #include <dvr/dvr_vsync.h> 16 17 // Headers not yet moved into libdvr. 18 // TODO(jwcai) Move these once their callers are moved into Google3. 19 #include <dvr/dvr_hardware_composer_client.h> 20 #include <dvr/pose_client.h> 21 #include <dvr/virtual_touchpad_client.h> 22 23 extern "C" { 24 25 int dvrGetApi(void* api, size_t struct_size, int version) { 26 ALOGI("dvrGetApi: api=%p struct_size=%zu version=%d", api, struct_size, 27 version); 28 if (version == 1) { 29 // New entry points are added at the end. If the caller's struct and 30 // this library have different sizes, we define the entry points in common. 31 // The caller is expected to handle unset entry points if necessary. 32 size_t clamped_struct_size = std::min(struct_size, sizeof(DvrApi_v1)); 33 DvrApi_v1* dvr_api = static_cast<DvrApi_v1*>(api); 34 35 // Defines an API entry for V1 (no version suffix). 36 #define DVR_V1_API_ENTRY(name) \ 37 do { \ 38 if ((offsetof(DvrApi_v1, name) + sizeof(dvr_api->name)) <= \ 39 clamped_struct_size) { \ 40 dvr_api->name = dvr##name; \ 41 } \ 42 } while (0) 43 44 #define DVR_V1_API_ENTRY_DEPRECATED(name) \ 45 do { \ 46 if ((offsetof(DvrApi_v1, name) + sizeof(dvr_api->name)) <= \ 47 clamped_struct_size) { \ 48 dvr_api->name = nullptr; \ 49 } \ 50 } while (0) 51 52 #include "include/dvr/dvr_api_entries.h" 53 54 // Undefine macro definitions to play nice with Google3 style rules. 55 #undef DVR_V1_API_ENTRY 56 #undef DVR_V1_API_ENTRY_DEPRECATED 57 58 return 0; 59 } 60 61 ALOGE("dvrGetApi: Unknown API version=%d", version); 62 return -EINVAL; 63 } 64 65 } // extern "C" 66
