C++ (Cpp) level示例

示例#1

void
sge::opengl::texture::funcs::get_image(
	sge::opengl::texture::binding const &,
	sge::opengl::texture::buffer_type const _buffer_type,
	sge::opengl::color_order const _format,
	sge::opengl::color_base_type const _format_type,
	sge::renderer::raw_pointer const _dest,
	sge::renderer::texture::mipmap::level const _level
)
{
	sge::opengl::call(
		::glGetTexImage,
		_buffer_type.get(),
		fcppt::cast::to_signed(
			_level.get()
		),
		_format.get(),
		_format_type.get(),
		fcppt::cast::to_void_ptr(
			_dest
		)
	);

	SGE_OPENGL_CHECK_STATE(
		FCPPT_TEXT("glGetTexImage failed"),
		sge::renderer::exception
	)
}

示例#2

sge::d3d9::surface::d3d_unique_ptr
sge::d3d9::texturefuncs::get_cube_map_surface(
	IDirect3DCubeTexture9 &_texture,
	sge::renderer::texture::cube_side const _side,
	sge::renderer::texture::mipmap::level const _level
)
{
	IDirect3DSurface9 *result;

	if(
		_texture.GetCubeMapSurface(
			sge::d3d9::convert::cube_side(
				_side
			),
			_level.get(),
			&result
		)
		!=
		D3D_OK
	)
		throw sge::renderer::exception(
			FCPPT_TEXT("GetCubeMapSurface failed!")
		);

	return
		sge::d3d9::surface::d3d_unique_ptr(
			result
		);
}

示例#3

GLint
sge::opengl::texture::funcs::level_parameter(
	sge::opengl::texture::binding const &,
	sge::opengl::texture::buffer_type const _type,
	sge::renderer::texture::mipmap::level const _level,
	GLenum const _what
)
{
	GLint ret;

	sge::opengl::call(
		::glGetTexLevelParameteriv,
		_type.get(),
		fcppt::cast::to_signed(
			_level.get()
		),
		_what,
		&ret
	);

	SGE_OPENGL_CHECK_STATE(
		FCPPT_TEXT("glGetTexLevelParameteriv() failed!"),
		sge::renderer::exception
	);

	return
		ret;
}

示例#4

void
sge::opengl::texture::funcs::set_rect(
	sge::opengl::texture::binding const &,
	sge::opengl::context::object &_context,
	sge::opengl::texture::surface_config const &,
	sge::opengl::texture::buffer_type const _buffer_type,
	sge::opengl::color_order const _format,
	sge::opengl::color_base_type const _format_type,
	sge::renderer::texture::mipmap::level const _level,
	sge::renderer::dim2 const &_dim,
	sge::renderer::lock_rect const &_lock_rect,
	sge::renderer::const_raw_pointer const _src
)
{
	if(
		_src
		==
		nullptr
		&&
		!sge::opengl::context::use<
			sge::opengl::buffer::pbo_context
		>(
			_context,
			_context
		)
		.unpack_buffer()
		.native()
	)
		throw
			sge::renderer::exception{
				FCPPT_TEXT("OpenGL: Texture source is 0 although no PBO is bound!")
			};

	if(
		!sge::opengl::range_check(
			_dim,
			_lock_rect
		)
	)
		throw
			sge::renderer::exception{
				(
					fcppt::format(
						FCPPT_TEXT("rect for setting a texture is out of range (rect=%1%, dim=%2%)!")
					)
					% _lock_rect
					% _dim
				)
				.str()
			};

	sge::renderer::lock_rect::dim const lock_size(
		_lock_rect.size()
	);

	::glTexSubImage2D(
		_buffer_type.get(),
		fcppt::cast::to_signed(
			_level.get()
		),
		fcppt::cast::size<
			GLint
		>(
			fcppt::cast::to_signed(
				_lock_rect.left()
			)
		),
		fcppt::cast::size<
			GLint
		>(
			fcppt::cast::to_signed(
				_lock_rect.top()
			)
		),
		fcppt::cast::size<
			GLsizei
		>(
			fcppt::cast::to_signed(
				lock_size.w()
			)
		),
		fcppt::cast::size<
			GLsizei
		>(
			fcppt::cast::to_signed(
				lock_size.h()
			)
		),
		_format.get(),
		_format_type.get(),
		_src
	);

	SGE_OPENGL_CHECK_STATE(
		(
			fcppt::format(
				FCPPT_TEXT("glTexSubImage2D with rect (rect=%1%, dim=%2%) failed")
			)
			% _lock_rect
			% _dim
		).str(),
		sge::renderer::exception
	)
}