native_image.h
Overview
The native_image.h file declares the functions for obtaining and using NativeImage.
Library: libnative_image.so
Since: 9
Related module: OH_NativeImage
Summary
Structs
| Name | Description |
|---|---|
| OH_OnFrameAvailableListener | Defines an OH_NativeImage listener, which is registered through OH_NativeImage_SetOnFrameAvailableListener. The listener triggers a callback when a frame is available. |
Types
| Name | Description |
|---|---|
| OH_NativeImage | Provides the declaration of an OH_NativeImage struct. |
| OHNativeWindow | Provides the capability of accessing the NativeWindow. |
| OH_OnFrameAvailable | Defines the callback function triggered when a frame is available. |
| OH_OnFrameAvailableListener | Defines an OH_NativeImage listener, which is registered through OH_NativeImage_SetOnFrameAvailableListener. The listener triggers a callback when a frame is available. |
Functions
| Name | Description |
|---|---|
| OH_NativeImage_Create (uint32_t textureId, uint32_t textureTarget) | Creates an OH_NativeImage instance to be associated with the OpenGL ES texture ID and target. |
| OH_NativeImage_AcquireNativeWindow (OH_NativeImage *image) | Obtains an OHNativeWindow instance associated with an OH_NativeImage instance. You need to call OH_NativeWindow_DestroyNativeWindow to release the OHNativeWindow instance when it is no longer required. |
| OH_NativeImage_AttachContext (OH_NativeImage *image, uint32_t textureId) | Attaches an OH_NativeImage instance to the current OpenGL ES context. The OpenGL ES texture will be bound to an GL_TEXTURE_EXTERNAL_OES instance and updated through the OH_NativeImage instance. |
| OH_NativeImage_DetachContext (OH_NativeImage *image) | Detaches an OH_NativeImage instance from the current OpenGL ES context. |
| OH_NativeImage_UpdateSurfaceImage (OH_NativeImage *image) | Updates the OpenGL ES texture associated with the latest frame through an OH_NativeImage instance. |
| OH_NativeImage_GetTimestamp (OH_NativeImage *image) | Obtains the timestamp of the texture image that recently called the OH_NativeImage_UpdateSurfaceImage function. |
| OH_NativeImage_GetTransformMatrix (OH_NativeImage *image, float matrix[16]) | Obtains the transform matrix of the texture image that recently called the OH_NativeImage_UpdateSurfaceImage function. |
| OH_NativeImage_GetSurfaceId (OH_NativeImage *image, uint64_t *surfaceId) | Obtains the surface ID of an OH_NativeImage instance. |
| OH_NativeImage_SetOnFrameAvailableListener (OH_NativeImage *image, OH_OnFrameAvailableListener listener) | Registers a listener to listen for frame availability events. |
| OH_NativeImage_UnsetOnFrameAvailableListener (OH_NativeImage *image) | Deregisters the listener used to listen for frame availability events. |
| OH_NativeImage_Destroy (OH_NativeImage **image) | Destroys an OH_NativeImage instance created by calling OH_NativeImage_Create. After the instance is destroyed, the pointer to the OH_NativeImage instance is assigned NULL. |