diff options
Diffstat (limited to 'engine/src/opengl/vertex_buffer.rs')
-rw-r--r-- | engine/src/opengl/vertex_buffer.rs | 93 |
1 files changed, 0 insertions, 93 deletions
diff --git a/engine/src/opengl/vertex_buffer.rs b/engine/src/opengl/vertex_buffer.rs deleted file mode 100644 index 0050a9f..0000000 --- a/engine/src/opengl/vertex_buffer.rs +++ /dev/null @@ -1,93 +0,0 @@ -use std::mem::size_of_val; - -use crate::opengl::currently_bound::CurrentlyBound; -use crate::vertex::Vertex; - -#[derive(Debug)] -pub struct VertexBuffer -{ - buffer: gl::types::GLuint, -} - -impl VertexBuffer -{ - pub fn new() -> Self - { - let mut buffer = gl::types::GLuint::default(); - - unsafe { - gl::GenBuffers(1, &mut buffer); - }; - - Self { buffer } - } - - #[allow(clippy::inline_always)] - #[inline(always)] - pub fn bind(&self, cb: impl FnOnce(CurrentlyBound<'_, Self>)) - { - unsafe { - gl::BindBuffer(gl::ARRAY_BUFFER, self.buffer); - } - - // SAFETY: A vertex array object is currently bound - let currently_bound = unsafe { CurrentlyBound::new() }; - - cb(currently_bound); - } - - /// Stores vertices in the currently bound vertex bound. - pub fn store( - _currently_bound: &CurrentlyBound<Self>, - vertices: &[Vertex], - usage: BufferUsage, - ) - { - unsafe { - #[allow(clippy::cast_possible_wrap)] - gl::BufferData( - gl::ARRAY_BUFFER, - size_of_val(vertices) as gl::types::GLsizeiptr, - vertices.as_ptr().cast(), - usage.into_gl(), - ); - } - } -} - -impl Drop for VertexBuffer -{ - fn drop(&mut self) - { - #[allow(clippy::cast_possible_wrap, clippy::cast_possible_truncation)] - unsafe { - gl::DeleteBuffers(1, &self.buffer); - } - } -} - -#[derive(Debug)] -#[allow(dead_code)] -pub enum BufferUsage -{ - /// The buffer data is set only once and used by the GPU at most a few times. - Stream, - - /// The buffer data is set only once and used many times. - Static, - - /// The buffer data is changed a lot and used many times. - Dynamic, -} - -impl BufferUsage -{ - fn into_gl(self) -> gl::types::GLenum - { - match self { - Self::Stream => gl::STREAM_DRAW, - Self::Static => gl::STATIC_DRAW, - Self::Dynamic => gl::DYNAMIC_DRAW, - } - } -} |