Struct AHardwareBufferUsageFlags 

#[repr(transparent)]
pub struct AHardwareBufferUsageFlags(pub c_ulong);

Buffer usage flags, specifying how the buffer will be accessed.

Tuple Fields

0: c_ulong

Implementations

impl AHardwareBufferUsageFlags

pub const CPU_READ_NEVER: AHardwareBufferUsageFlags

The buffer will never be locked for direct CPU reads using the AHardwareBuffer_lock() function. Note that reading the buffer using OpenGL or Vulkan functions or memory mappings is still allowed.

impl AHardwareBufferUsageFlags

pub const CPU_READ_RARELY: AHardwareBufferUsageFlags

The buffer will sometimes be locked for direct CPU reads using the AHardwareBuffer_lock() function. Note that reading the buffer using OpenGL or Vulkan functions or memory mappings does not require the presence of this flag.

impl AHardwareBufferUsageFlags

pub const CPU_READ_OFTEN: AHardwareBufferUsageFlags

The buffer will often be locked for direct CPU reads using the AHardwareBuffer_lock() function. Note that reading the buffer using OpenGL or Vulkan functions or memory mappings does not require the presence of this flag.

impl AHardwareBufferUsageFlags

pub const CPU_READ_MASK: AHardwareBufferUsageFlags

CPU read value mask.

impl AHardwareBufferUsageFlags

pub const CPU_WRITE_NEVER: AHardwareBufferUsageFlags

The buffer will never be locked for direct CPU writes using the AHardwareBuffer_lock() function. Note that writing the buffer using OpenGL or Vulkan functions or memory mappings is still allowed.

impl AHardwareBufferUsageFlags

pub const CPU_WRITE_RARELY: AHardwareBufferUsageFlags

The buffer will sometimes be locked for direct CPU writes using the AHardwareBuffer_lock() function. Note that writing the buffer using OpenGL or Vulkan functions or memory mappings does not require the presence of this flag.

impl AHardwareBufferUsageFlags

pub const CPU_WRITE_OFTEN: AHardwareBufferUsageFlags

The buffer will often be locked for direct CPU writes using the AHardwareBuffer_lock() function. Note that writing the buffer using OpenGL or Vulkan functions or memory mappings does not require the presence of this flag.

impl AHardwareBufferUsageFlags

pub const CPU_WRITE_MASK: AHardwareBufferUsageFlags

CPU write value mask.

impl AHardwareBufferUsageFlags

pub const GPU_SAMPLED_IMAGE: AHardwareBufferUsageFlags

The buffer will be read from by the GPU as a texture.

impl AHardwareBufferUsageFlags

pub const GPU_FRAMEBUFFER: AHardwareBufferUsageFlags

The buffer will be written to by the GPU as a framebuffer attachment.

impl AHardwareBufferUsageFlags

pub const GPU_COLOR_OUTPUT: AHardwareBufferUsageFlags

The buffer will be written to by the GPU as a framebuffer attachment.

Note that the name of this flag is somewhat misleading: it does not imply that the buffer contains a color format. A buffer with depth or stencil format that will be used as a framebuffer attachment should also have this flag. Use the equivalent flag AHARDWAREBUFFER_USAGE_GPU_FRAMEBUFFER to avoid this confusion.

impl AHardwareBufferUsageFlags

pub const COMPOSER_OVERLAY: AHardwareBufferUsageFlags

The buffer will be used as a composer HAL overlay layer.

This flag is currently only needed when using ASurfaceTransaction_setBuffer to set a buffer. In all other cases, the framework adds this flag internally to buffers that could be presented in a composer overlay. ASurfaceTransaction_setBuffer is special because it uses buffers allocated directly through AHardwareBuffer_allocate instead of buffers allocated by the framework.

impl AHardwareBufferUsageFlags

pub const PROTECTED_CONTENT: AHardwareBufferUsageFlags

The buffer is protected from direct CPU access or being read by non-secure hardware, such as video encoders.

This flag is incompatible with CPU read and write flags. It is mainly used when handling DRM video. Refer to the EGL extension EGL_EXT_protected_content and GL extension GL_EXT_protected_textures for more information on how these buffers are expected to behave.

impl AHardwareBufferUsageFlags

pub const VIDEO_ENCODE: AHardwareBufferUsageFlags

The buffer will be read by a hardware video encoder.

impl AHardwareBufferUsageFlags

pub const SENSOR_DIRECT_DATA: AHardwareBufferUsageFlags

The buffer will be used for direct writes from sensors. When this flag is present, the format must be AHARDWAREBUFFER_FORMAT_BLOB.

impl AHardwareBufferUsageFlags

pub const GPU_DATA_BUFFER: AHardwareBufferUsageFlags

The buffer will be used as a shader storage or uniform buffer object. When this flag is present, the format must be AHARDWAREBUFFER_FORMAT_BLOB.

impl AHardwareBufferUsageFlags

pub const GPU_CUBE_MAP: AHardwareBufferUsageFlags

The buffer will be used as a cube map texture. When this flag is present, the buffer must have a layer count that is a multiple of 6. Note that buffers with this flag must be bound to OpenGL textures using the extension GL_EXT_EGL_image_storage instead of GL_KHR_EGL_image.

impl AHardwareBufferUsageFlags

pub const GPU_MIPMAP_COMPLETE: AHardwareBufferUsageFlags

The buffer contains a complete mipmap hierarchy. Note that buffers with this flag must be bound to OpenGL textures using the extension GL_EXT_EGL_image_storage instead of GL_KHR_EGL_image.

impl AHardwareBufferUsageFlags

pub const VENDOR_0: AHardwareBufferUsageFlags

The buffer contains a complete mipmap hierarchy. Note that buffers with this flag must be bound to OpenGL textures using the extension GL_EXT_EGL_image_storage instead of GL_KHR_EGL_image.

impl AHardwareBufferUsageFlags

pub const VENDOR_1: AHardwareBufferUsageFlags

The buffer contains a complete mipmap hierarchy. Note that buffers with this flag must be bound to OpenGL textures using the extension GL_EXT_EGL_image_storage instead of GL_KHR_EGL_image.

impl AHardwareBufferUsageFlags

pub const VENDOR_2: AHardwareBufferUsageFlags

The buffer contains a complete mipmap hierarchy. Note that buffers with this flag must be bound to OpenGL textures using the extension GL_EXT_EGL_image_storage instead of GL_KHR_EGL_image.

impl AHardwareBufferUsageFlags

pub const VENDOR_3: AHardwareBufferUsageFlags

The buffer contains a complete mipmap hierarchy. Note that buffers with this flag must be bound to OpenGL textures using the extension GL_EXT_EGL_image_storage instead of GL_KHR_EGL_image.

impl AHardwareBufferUsageFlags

pub const VENDOR_4: AHardwareBufferUsageFlags

The buffer contains a complete mipmap hierarchy. Note that buffers with this flag must be bound to OpenGL textures using the extension GL_EXT_EGL_image_storage instead of GL_KHR_EGL_image.

impl AHardwareBufferUsageFlags

pub const VENDOR_5: AHardwareBufferUsageFlags

The buffer contains a complete mipmap hierarchy. Note that buffers with this flag must be bound to OpenGL textures using the extension GL_EXT_EGL_image_storage instead of GL_KHR_EGL_image.

impl AHardwareBufferUsageFlags

pub const VENDOR_6: AHardwareBufferUsageFlags

The buffer contains a complete mipmap hierarchy. Note that buffers with this flag must be bound to OpenGL textures using the extension GL_EXT_EGL_image_storage instead of GL_KHR_EGL_image.

impl AHardwareBufferUsageFlags

pub const VENDOR_7: AHardwareBufferUsageFlags

The buffer contains a complete mipmap hierarchy. Note that buffers with this flag must be bound to OpenGL textures using the extension GL_EXT_EGL_image_storage instead of GL_KHR_EGL_image.

impl AHardwareBufferUsageFlags

pub const VENDOR_8: AHardwareBufferUsageFlags

The buffer contains a complete mipmap hierarchy. Note that buffers with this flag must be bound to OpenGL textures using the extension GL_EXT_EGL_image_storage instead of GL_KHR_EGL_image.

impl AHardwareBufferUsageFlags

pub const VENDOR_9: AHardwareBufferUsageFlags

The buffer contains a complete mipmap hierarchy. Note that buffers with this flag must be bound to OpenGL textures using the extension GL_EXT_EGL_image_storage instead of GL_KHR_EGL_image.

impl AHardwareBufferUsageFlags

pub const VENDOR_10: AHardwareBufferUsageFlags

The buffer contains a complete mipmap hierarchy. Note that buffers with this flag must be bound to OpenGL textures using the extension GL_EXT_EGL_image_storage instead of GL_KHR_EGL_image.

impl AHardwareBufferUsageFlags

pub const VENDOR_11: AHardwareBufferUsageFlags

The buffer contains a complete mipmap hierarchy. Note that buffers with this flag must be bound to OpenGL textures using the extension GL_EXT_EGL_image_storage instead of GL_KHR_EGL_image.

impl AHardwareBufferUsageFlags

pub const VENDOR_12: AHardwareBufferUsageFlags

The buffer contains a complete mipmap hierarchy. Note that buffers with this flag must be bound to OpenGL textures using the extension GL_EXT_EGL_image_storage instead of GL_KHR_EGL_image.

impl AHardwareBufferUsageFlags

pub const VENDOR_13: AHardwareBufferUsageFlags

The buffer contains a complete mipmap hierarchy. Note that buffers with this flag must be bound to OpenGL textures using the extension GL_EXT_EGL_image_storage instead of GL_KHR_EGL_image.

impl AHardwareBufferUsageFlags

pub const VENDOR_14: AHardwareBufferUsageFlags

The buffer contains a complete mipmap hierarchy. Note that buffers with this flag must be bound to OpenGL textures using the extension GL_EXT_EGL_image_storage instead of GL_KHR_EGL_image.

impl AHardwareBufferUsageFlags

pub const VENDOR_15: AHardwareBufferUsageFlags

The buffer contains a complete mipmap hierarchy. Note that buffers with this flag must be bound to OpenGL textures using the extension GL_EXT_EGL_image_storage instead of GL_KHR_EGL_image.

impl AHardwareBufferUsageFlags

pub const VENDOR_16: AHardwareBufferUsageFlags

The buffer contains a complete mipmap hierarchy. Note that buffers with this flag must be bound to OpenGL textures using the extension GL_EXT_EGL_image_storage instead of GL_KHR_EGL_image.

impl AHardwareBufferUsageFlags

pub const VENDOR_17: AHardwareBufferUsageFlags

The buffer contains a complete mipmap hierarchy. Note that buffers with this flag must be bound to OpenGL textures using the extension GL_EXT_EGL_image_storage instead of GL_KHR_EGL_image.

impl AHardwareBufferUsageFlags

pub const VENDOR_18: AHardwareBufferUsageFlags

The buffer contains a complete mipmap hierarchy. Note that buffers with this flag must be bound to OpenGL textures using the extension GL_EXT_EGL_image_storage instead of GL_KHR_EGL_image.

impl AHardwareBufferUsageFlags

pub const VENDOR_19: AHardwareBufferUsageFlags

The buffer contains a complete mipmap hierarchy. Note that buffers with this flag must be bound to OpenGL textures using the extension GL_EXT_EGL_image_storage instead of GL_KHR_EGL_image.

Trait Implementations

impl BitAnd for AHardwareBufferUsageFlags

type Output = AHardwareBufferUsageFlags

The resulting type after applying the & operator.

fn bitand(self, other: Self) -> Self

Performs the & operation.

impl BitAndAssign for AHardwareBufferUsageFlags

fn bitand_assign(&mut self, rhs: AHardwareBufferUsageFlags)

Performs the &= operation.

impl BitOr for AHardwareBufferUsageFlags

type Output = AHardwareBufferUsageFlags

The resulting type after applying the | operator.

fn bitor(self, other: Self) -> Self

Performs the | operation.

impl BitOrAssign for AHardwareBufferUsageFlags

fn bitor_assign(&mut self, rhs: AHardwareBufferUsageFlags)

Performs the |= operation.

impl Clone for AHardwareBufferUsageFlags

fn clone(&self) -> AHardwareBufferUsageFlags

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for AHardwareBufferUsageFlags

impl Debug for AHardwareBufferUsageFlags

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for AHardwareBufferUsageFlags

impl Hash for AHardwareBufferUsageFlags

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for AHardwareBufferUsageFlags

fn eq(&self, other: &AHardwareBufferUsageFlags) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for AHardwareBufferUsageFlags