window

Documentation

Overview

Package window provides Go bindings for Android NativeWindow.

Index

• type Error
  • func (e Error) Error() string
• type Format
  • func (v Format) String() string
• type NativeWindowTransform
• type NativeWindow_Buffer
  • func NewNativeWindow_BufferFromPointer(ptr unsafe.Pointer) *NativeWindow_Buffer
  • func (h *NativeWindow_Buffer) Pointer() unsafe.Pointer
• type NativeWindow_ChangeFrameRateStrategy
• type NativeWindow_FrameRateCompatibility
• type Window
  • func NewWindowFromPointer(ptr unsafe.Pointer) *Window
  • func (h *Window) Acquire()
  • func (h *Window) ClearFrameRate() error
  • func (h *Window) Close() error
  • func (h *Window) Format() int32
  • func (h *Window) GetBuffersDataSpace() error
  • func (h *Window) GetBuffersDefaultDataSpace() error
  • func (h *Window) Height() int32
  • func (h *Window) Pointer() unsafe.Pointer
  • func (h *Window) SetBuffersDataSpace(dataSpace int32) error
  • func (h *Window) SetBuffersGeometry(width int32, height int32, format Format) error
  • func (h *Window) SetBuffersTransform(transform int32) error
  • func (h *Window) SetFrameRate(frameRate float32, compatibility int8) error
  • func (h *Window) SetFrameRateWithChangeStrategy(frameRate float32, compatibility int8, changeFrameRateStrategy int8) error
  • func (h *Window) TryAllocateBuffers()
  • func (h *Window) UnlockAndPost() error
  • func (h *Window) Width() int32

Types

type Error

type Error int32

Error represents an NDK error code.

func (Error) Error

func (e Error) Error() string

type Format

type Format int32

const (
	Rgba8888 Format = 1
	Rgbx8888 Format = 2
	Rgb565   Format = 4
)

func (Format) String

func (v Format) String() string

type NativeWindowTransform

type NativeWindowTransform int32

const (
	ANATIVEWINDOW_TRANSFORM_IDENTITY          NativeWindowTransform = 0
	ANATIVEWINDOW_TRANSFORM_MIRROR_HORIZONTAL NativeWindowTransform = 1
	ANATIVEWINDOW_TRANSFORM_MIRROR_VERTICAL   NativeWindowTransform = 2
	ANATIVEWINDOW_TRANSFORM_ROTATE_90         NativeWindowTransform = 4
	ANATIVEWINDOW_TRANSFORM_ROTATE_180        NativeWindowTransform = 3
	ANATIVEWINDOW_TRANSFORM_ROTATE_270        NativeWindowTransform = 7
)

type NativeWindow_Buffer

type NativeWindow_Buffer struct {
	// contains filtered or unexported fields
}

NativeWindow_Buffer wraps the NDK ANativeWindow_Buffer handle.

func NewNativeWindow_BufferFromPointer

func NewNativeWindow_BufferFromPointer(ptr unsafe.Pointer) *NativeWindow_Buffer

NewNativeWindow_BufferFromPointer wraps a raw ANativeWindow_Buffer pointer.

func (*NativeWindow_Buffer) Pointer

func (h *NativeWindow_Buffer) Pointer() unsafe.Pointer

Pointer returns the underlying pointer as unsafe.Pointer.

type NativeWindow_ChangeFrameRateStrategy

type NativeWindow_ChangeFrameRateStrategy int32

const (
	ANATIVEWINDOW_CHANGE_FRAME_RATE_ONLY_IF_SEAMLESS NativeWindow_ChangeFrameRateStrategy = 0
	ANATIVEWINDOW_CHANGE_FRAME_RATE_ALWAYS           NativeWindow_ChangeFrameRateStrategy = 1
)

type NativeWindow_FrameRateCompatibility

type NativeWindow_FrameRateCompatibility int32

const (
	ANATIVEWINDOW_FRAME_RATE_COMPATIBILITY_DEFAULT      NativeWindow_FrameRateCompatibility = 0
	ANATIVEWINDOW_FRAME_RATE_COMPATIBILITY_FIXED_SOURCE NativeWindow_FrameRateCompatibility = 1
)

type Window

type Window struct {
	// contains filtered or unexported fields
}

Window wraps the NDK ANativeWindow handle.

func NewWindowFromPointer

func NewWindowFromPointer(ptr unsafe.Pointer) *Window

NewWindowFromPointer wraps a raw ANativeWindow pointer.

func (*Window) Acquire

func (h *Window) Acquire()

Acquire calls the underlying NDK function.

func (*Window) ClearFrameRate

func (h *Window) ClearFrameRate() error

ClearFrameRate calls the underlying NDK function.

func (*Window) Close

func (h *Window) Close() error

Close releases the underlying NDK handle.

func (*Window) Format

func (h *Window) Format() int32

Format returns the value directly.

func (*Window) GetBuffersDataSpace

func (h *Window) GetBuffersDataSpace() error

GetBuffersDataSpace calls the underlying NDK function.

func (*Window) GetBuffersDefaultDataSpace

func (h *Window) GetBuffersDefaultDataSpace() error

GetBuffersDefaultDataSpace calls the underlying NDK function.

func (*Window) Height

func (h *Window) Height() int32

Height returns the value directly.

func (*Window) Pointer

func (h *Window) Pointer() unsafe.Pointer

Pointer returns the underlying pointer as unsafe.Pointer.

func (*Window) SetBuffersDataSpace

func (h *Window) SetBuffersDataSpace(dataSpace int32) error

SetBuffersDataSpace calls the underlying NDK function.

func (*Window) SetBuffersGeometry

func (h *Window) SetBuffersGeometry(width int32, height int32, format Format) error

SetBuffersGeometry calls the underlying NDK function.

func (*Window) SetBuffersTransform

func (h *Window) SetBuffersTransform(transform int32) error

SetBuffersTransform calls the underlying NDK function.

func (*Window) SetFrameRate

func (h *Window) SetFrameRate(frameRate float32, compatibility int8) error

SetFrameRate calls the underlying NDK function.

func (*Window) SetFrameRateWithChangeStrategy

func (h *Window) SetFrameRateWithChangeStrategy(frameRate float32, compatibility int8, changeFrameRateStrategy int8) error

SetFrameRateWithChangeStrategy calls the underlying NDK function.

func (*Window) TryAllocateBuffers

func (h *Window) TryAllocateBuffers()

TryAllocateBuffers calls the underlying NDK function.

func (*Window) UnlockAndPost

func (h *Window) UnlockAndPost() error

UnlockAndPost calls the underlying NDK function.

func (*Window) Width

func (h *Window) Width() int32

Width returns the value directly.