/**
* @glsymbols
* @glfunref{FlushMappedNamedBufferRange}
*
* @pre Mapped()
*
* @throws Error
*/
void FlushRange(BufferSize offset, BufferSize length)
{
OGLPLUS_GLFUNC(FlushMappedNamedBufferRange)(
_name,
GLintptr(offset.Get()),
GLsizeiptr(length.Get())
);
OGLPLUS_CHECK(
FlushMappedNamedBufferRange,
ObjectError,
Object(BufferName(_name))
);
}
/**
* @param buffer use the specified buffer
* @param offset map offset in units of Type
* @param size map size in units of Type
* @param access the access specifier for the buffer mapping
*
* @throws Error
*/
DSABufferRawMapEXT(
BufferName buffer,
BufferSize offset,
BufferSize size,
Bitfield<BufferMapAccess> access
): _offset(GLintptr(offset.Get()))
, _size(GLsizeiptr(size.Get()))
, _ptr(
OGLPLUS_GLFUNC(MapNamedBufferRangeEXT)(
GetGLName(buffer),
_offset,
_size,
GLbitfield(access)
)
), _buf_name(GetGLName(buffer))
{
OGLPLUS_CHECK(
MapNamedBufferRangeEXT,
ObjectError,
Object(buffer)
);
}
/**
* @see Data
* @see SubData
* @throws Error
*
* @glvoereq{3,1,ARB,copy_buffer}
*/
static void CopySubData(
BufferName readbuffer,
BufferName writebuffer,
BufferSize readoffset,
BufferSize writeoffset,
BufferSize size
)
{
OGLPLUS_GLFUNC(CopyNamedBufferSubData)(
GetGLName(readbuffer),
GetGLName(writebuffer),
GLintptr(readoffset.Get()),
GLintptr(writeoffset.Get()),
GLsizeiptr(size.Get())
);
OGLPLUS_CHECK(
CopyNamedBufferSubData,
ObjectPairError,
Subject(readbuffer).
Object(writebuffer)
);
}
void ClearSubData(
PixelDataInternalFormat internal_format,
BufferSize offset,
BufferSize size,
PixelDataFormat format,
const GLtype* data
) const
{
OGLPLUS_GLFUNC(ClearNamedBufferSubData)(
_name,
GLenum(internal_format),
GLintptr(offset.Get()),
GLsizeiptr(size.Get()),
GLenum(format),
GLenum(GetDataType<GLtype>()),
data
);
OGLPLUS_CHECK(
ClearNamedBufferSubData,
ObjectError,
Object(*this).
EnumParam(internal_format)
);
}
/**
* @see Data
* @see CopySubData
* @throws Error
*/
void SubData(
BufferSize offset,
const BufferData& data
) const
{
OGLPLUS_GLFUNC(NamedBufferSubData)(
_name,
GLintptr(offset.Get()),
GLsizei(data.Size()),
data.Data()
);
OGLPLUS_CHECK(
NamedBufferSubData,
ObjectError,
Object(*this)
);
}
/** This member function allows to (re-)allocate the buffer storage
* to the specifies @p size, without uploading any data.
*
* @glsymbols
* @glfunref{NamedBufferData}
*
* @see SubData
* @throws Error
*/
void Resize(
BufferSize size,
BufferUsage usage = BufferUsage::StaticDraw
)
{
OGLPLUS_GLFUNC(NamedBufferData)(
_name,
size.Get(),
nullptr,
GLenum(usage)
);
OGLPLUS_CHECK(
NamedBufferData,
ObjectError,
Object(*this).
EnumParam(usage)
);
}
