Struct Buffer

pub struct Buffer {
    pub glcore: Rc<GLCore>,
    /* private fields */
}

The OpenGL buffer object

Fields

glcore: Rc<GLCore>

Implementations

impl Buffer

pub fn get_name(&self) -> u32

Get the internal name

pub unsafe fn to_raw(self) -> u32

Safety

Release the OpenGL handle of the buffer object, consuming the Buffer struct. You have to delete the buffer object manually.

pub unsafe fn from_raw( glcore: Rc<GLCore>, name: u32, target: BufferTarget, ) -> Result<Self, GLCoreError>

Safety

Create a Buffer struct from an OpenGL handle to the buffer object. After the call, the OpenGL handle is managed by this struct. On drop(), the OpenGL handle is deleted.

pub fn new( glcore: Rc<GLCore>, target: BufferTarget, size: usize, usage: BufferUsage, data_ptr: *const c_void, ) -> Result<Self, GLCoreError>

Create a new OpenGL buffer with the specified size and data. The data could be NULL, indicating no initialization to the buffer.

pub fn size(&self) -> usize

Get the size of the buffer in bytes

pub fn get_target(&self) -> BufferTarget

Get the default binding target

pub fn get_usage(&self) -> BufferUsage

Get the usage when initializing

pub fn resize<T: Copy + Sized>( &mut self, new_len: usize, value: T, ) -> Result<(), GLCoreError>

Resize the buffer. Actually, this operation will reallocate the buffer and copy the data.

pub fn set_target(&mut self, target: BufferTarget)

Set the default binding target

pub fn bind<'a>(&'a self) -> Result<BufferBind<'a>, GLCoreError>

Create a BufferBind to use the RAII system to manage the binding state.

pub fn bind_to<'a>( &'a self, target: BufferTarget, ) -> Result<BufferBind<'a>, GLCoreError>

Bind to a specific target. WILL NOT change the default target of the buffer. Create a BufferBind to use the RAII system to manage the binding state.

Trait Implementations

impl Clone for Buffer

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Buffer

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

Formats the value using the given formatter.

impl Drop for Buffer

fn drop(&mut self)

Delete the OpenGL buffer on drop() called.

impl<T: BufferVecItem> From<Buffer> for BufferVecDynamic<T>

fn from(val: Buffer) -> Self

Converts to this type from the input type.

impl<T: BufferVecItem> From<Buffer> for BufferVecStatic<T>

fn from(val: Buffer) -> Self

Converts to this type from the input type.

impl<T: BufferVecItem> From<BufferVecDynamic<T>> for Buffer

fn from(val: BufferVecDynamic<T>) -> Self

Converts to this type from the input type.