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camera: Added SDL_GetCameraDevicePosition.

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Otherwise, as a property, you have to open each camera device to figure out
which ones are which.
This commit is contained in:
Ryan C. Gordon
2024-02-19 14:19:57 -05:00
parent b1ed49772c
commit 70b89ab70d
8 changed files with 75 additions and 49 deletions
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19
src/camera/android/SDL_camera_android.c
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@@ -575,7 +575,7 @@ static void ANDROIDCAMERA_FreeDeviceHandle(SDL_CameraDevice *device)
}
}
static void GatherCameraSpecs(const char *devid, CameraFormatAddData *add_data, char **fullname, const char **posstr)
static void GatherCameraSpecs(const char *devid, CameraFormatAddData *add_data, char **fullname, SDL_CameraPosition *position)
{
SDL_zerop(add_data);
@@ -608,16 +608,15 @@ static void GatherCameraSpecs(const char *devid, CameraFormatAddData *add_data,
}
}
*posstr = NULL;
ACameraMetadata_const_entry posentry;
if (pACameraMetadata_getConstEntry(metadata, ACAMERA_LENS_FACING, &posentry) == ACAMERA_OK) { // ignore this if it fails.
if (*posentry.data.u8 == ACAMERA_LENS_FACING_FRONT) {
*posstr = "front";
*position = SDL_CAMERA_POSITION_FRONT_FACING;
if (!*fullname) {
*fullname = SDL_strdup("Front-facing camera");
}
} else if (*posentry.data.u8 == ACAMERA_LENS_FACING_BACK) {
*posstr = "back";
*position = SDL_CAMERA_POSITION_BACK_FACING;
if (!*fullname) {
*fullname = SDL_strdup("Back-facing camera");
}
@@ -680,22 +679,16 @@ static void MaybeAddDevice(const char *devid)
return; // already have this one.
}
const char *posstr = NULL;
SDL_CameraPosition position = SDL_CAMERA_POSITION_UNKNOWN;
char *fullname = NULL;
CameraFormatAddData add_data;
GatherCameraSpecs(devid, &add_data, &fullname, &posstr);
GatherCameraSpecs(devid, &add_data, &fullname, &position);
if (add_data.num_specs > 0) {
char *namecpy = SDL_strdup(devid);
if (namecpy) {
SDL_CameraDevice *device = SDL_AddCameraDevice(fullname, add_data.num_specs, add_data.specs, namecpy);
SDL_CameraDevice *device = SDL_AddCameraDevice(fullname, position, add_data.num_specs, add_data.specs, namecpy);
if (!device) {
SDL_free(namecpy);
} else if (device && posstr) {
SDL_Camera *camera = (SDL_Camera *) device; // currently there's no separation between physical and logical device.
SDL_PropertiesID props = SDL_GetCameraProperties(camera);
if (props) {
SDL_SetStringProperty(props, SDL_PROP_CAMERA_POSITION_STRING, posstr);
}
}
}
}