native_buffer.h
Overview
Declares the functions for obtaining and using NativeBuffer.
Library: libnative_buffer.so
System capability: SystemCapability.Graphic.Graphic2D.NativeBuffer
Since: 9
Related module: OH_NativeBuffer
Summary
Structs
| Name | Description: |
|---|---|
| OH_NativeBuffer_Config | Defines the OH_NativeBuffer attribute configuration, which is used when you apply for a new OH_NativeBuffer instance or query the attributes of an existing instance. |
Types
| Name | Description: |
|---|---|
| OH_NativeBuffer | Provides the declaration of an OH_NativeBuffer struct. |
Enums
| Name | Description: |
|---|---|
| OH_NativeBuffer_Usage { NATIVEBUFFER_USAGE_CPU_READ = (1ULL << 0), NATIVEBUFFER_USAGE_CPU_WRITE = (1ULL << 1), NATIVEBUFFER_USAGE_MEM_DMA = (1ULL << 3) } | Enumerates the OH_NativeBuffer usages. |
| OH_NativeBuffer_Format { NATIVEBUFFER_PIXEL_FMT_RGB_565 = 3, NATIVEBUFFER_PIXEL_FMT_RGBA_5658, NATIVEBUFFER_PIXEL_FMT_RGBX_4444, NATIVEBUFFER_PIXEL_FMT_RGBA_4444, NATIVEBUFFER_PIXEL_FMT_RGB_444, NATIVEBUFFER_PIXEL_FMT_RGBX_5551, NATIVEBUFFER_PIXEL_FMT_RGBA_5551, NATIVEBUFFER_PIXEL_FMT_RGB_555, NATIVEBUFFER_PIXEL_FMT_RGBX_8888, NATIVEBUFFER_PIXEL_FMT_RGBA_8888, NATIVEBUFFER_PIXEL_FMT_RGB_888, NATIVEBUFFER_PIXEL_FMT_BGR_565, NATIVEBUFFER_PIXEL_FMT_BGRX_4444, NATIVEBUFFER_PIXEL_FMT_BGRA_4444, NATIVEBUFFER_PIXEL_FMT_BGRX_5551, NATIVEBUFFER_PIXEL_FMT_BGRA_5551, NATIVEBUFFER_PIXEL_FMT_BGRX_8888, NATIVEBUFFER_PIXEL_FMT_BGRA_8888, NATIVEBUFFER_PIXEL_FMT_BUTT = 0X7FFFFFFF } |
Enumerates the OH_NativeBuffer formats. |
| OH_NativeBuffer_ColorSpace { OH_COLORSPACE_NONE, OH_COLORSPACE_BT601_EBU_FULL, OH_COLORSPACE_BT601_SMPTE_C_FULL, OH_COLORSPACE_BT709_FULL, OH_COLORSPACE_BT2020_HLG_FULL, OH_COLORSPACE_BT2020_PQ_FULL, OH_COLORSPACE_BT601_EBU_LIMIT, OH_COLORSPACE_BT601_SMPTE_C_LIMIT, OH_COLORSPACE_BT709_LIMIT, OH_COLORSPACE_BT2020_HLG_LIMIT, OH_COLORSPACE_BT2020_PQ_LIMIT, OH_COLORSPACE_SRGB_FULL, OH_COLORSPACE_P3_FULL, OH_COLORSPACE_P3_HLG_FULL, OH_COLORSPACE_P3_PQ_FULL, OH_COLORSPACE_ADOBERGB_FULL, OH_COLORSPACE_SRGB_LIMIT, OH_COLORSPACE_P3_LIMIT, OH_COLORSPACE_P3_HLG_LIMIT, OH_COLORSPACE_P3_PQ_LIMIT, OH_COLORSPACE_ADOBERGB_LIMIT, OH_COLORSPACE_LINEAR_SRGB, OH_COLORSPACE_LINEAR_BT709, OH_COLORSPACE_LINEAR_P3, OH_COLORSPACE_LINEAR_BT2020, OH_COLORSPACE_DISPLAY_SRGB, OH_COLORSPACE_DISPLAY_P3_SRGB, OH_COLORSPACE_DISPLAY_P3_HLG, OH_COLORSPACE_DISPLAY_P3_PQ, OH_COLORSPACE_DISPLAY_BT2020_SRGB, OH_COLORSPACE_DISPLAY_BT2020_HLG, OH_COLORSPACE_DISPLAY_BT2020_PQ } |
Enumerates the color spaces of an OH_NativeBuffer instance. |
Functions
| Name | Description: |
|---|---|
| OH_NativeBuffer_Alloc (const OH_NativeBuffer_Config *config) | Creates an OH_NativeBuffer instance based on an OH_NativeBuffer_Config struct. A new OH_NativeBuffer instance is created each time this function is called. |
| OH_NativeBuffer_Reference (OH_NativeBuffer *buffer) | Increases the reference count of an OH_NativeBuffer instance by 1. |
| OH_NativeBuffer_Unreference (OH_NativeBuffer *buffer) | Decreases the reference count of an OH_NativeBuffer instance by 1 and, when the reference count reaches 0, destroys the instance. |
| OH_NativeBuffer_GetConfig (OH_NativeBuffer *buffer, OH_NativeBuffer_Config *config) | Obtains the properties of an OH_NativeBuffer instance. |
| OH_NativeBuffer_Map (OH_NativeBuffer *buffer, void **virAddr) | Maps the ION memory allocated to an OH_NativeBuffer instance to the process address space. |
| OH_NativeBuffer_Unmap (OH_NativeBuffer *buffer) | Unmaps the ION memory allocated to an OH_NativeBuffer instance from the process address space. |
| OH_NativeBuffer_GetSeqNum (OH_NativeBuffer *buffer) | Obtains the sequence number of an OH_NativeBuffer instance. |
| OH_NativeBuffer_SetColorSpace (OH_NativeBuffer *buffer, OH_NativeBuffer_ColorSpace colorSpace) | Sets the color space for an OH_NativeBuffer instance. |