From 12f48046b2606fc77a1312a6d5e5fc7ff9feff88 Mon Sep 17 00:00:00 2001
From: HampusM <hampus@hampusmat.com>
Date: Fri, 13 Oct 2023 23:32:00 +0200
Subject: refactor(engine): move uses of OpenGL to OpenGL module

---
 engine/src/shader.rs | 198 ---------------------------------------------------
 1 file changed, 198 deletions(-)
 delete mode 100644 engine/src/shader.rs

(limited to 'engine/src/shader.rs')

diff --git a/engine/src/shader.rs b/engine/src/shader.rs
deleted file mode 100644
index 0bbca77..0000000
--- a/engine/src/shader.rs
+++ /dev/null
@@ -1,198 +0,0 @@
-use std::ffi::CStr;
-use std::ptr::null_mut;
-
-#[derive(Debug)]
-pub struct Shader
-{
-    shader: gl::types::GLuint,
-}
-
-impl Shader
-{
-    pub fn new(kind: Kind) -> Self
-    {
-        let shader = unsafe { gl::CreateShader(kind.into_gl()) };
-
-        Self { shader }
-    }
-
-    pub fn set_source(&self, source: &str) -> Result<(), Error>
-    {
-        if !source.is_ascii() {
-            return Err(Error::SourceNotAscii);
-        }
-
-        unsafe {
-            #[allow(clippy::cast_possible_wrap, clippy::cast_possible_truncation)]
-            gl::ShaderSource(
-                self.shader,
-                1,
-                &source.as_ptr().cast(),
-                &(source.len() as gl::types::GLint),
-            );
-        }
-
-        Ok(())
-    }
-
-    pub fn compile(&self) -> Result<(), Error>
-    {
-        unsafe {
-            gl::CompileShader(self.shader);
-        }
-
-        let mut compile_success = gl::types::GLint::default();
-
-        unsafe {
-            gl::GetShaderiv(self.shader, gl::COMPILE_STATUS, &mut compile_success);
-        }
-
-        if compile_success == 0 {
-            let info_log = self.get_info_log();
-
-            return Err(Error::CompileFailed(info_log));
-        }
-
-        Ok(())
-    }
-
-    fn get_info_log(&self) -> String
-    {
-        let mut buf = vec![gl::types::GLchar::default(); 512];
-
-        unsafe {
-            #[allow(clippy::cast_possible_wrap, clippy::cast_possible_truncation)]
-            gl::GetShaderInfoLog(
-                self.shader,
-                buf.len() as gl::types::GLsizei,
-                null_mut(),
-                buf.as_mut_ptr(),
-            );
-        }
-
-        let info_log = unsafe { CStr::from_ptr(buf.as_ptr()) };
-
-        unsafe { String::from_utf8_unchecked(info_log.to_bytes().to_vec()) }
-    }
-}
-
-impl Drop for Shader
-{
-    fn drop(&mut self)
-    {
-        unsafe {
-            gl::DeleteShader(self.shader);
-        }
-    }
-}
-
-/// Shader kind.
-#[derive(Debug, Clone, Copy)]
-pub enum Kind
-{
-    Vertex,
-    Fragment,
-}
-
-impl Kind
-{
-    fn into_gl(self) -> gl::types::GLenum
-    {
-        match self {
-            Self::Vertex => gl::VERTEX_SHADER,
-            Self::Fragment => gl::FRAGMENT_SHADER,
-        }
-    }
-}
-
-/// Shader program
-#[derive(Debug)]
-pub struct Program
-{
-    program: gl::types::GLuint,
-}
-
-impl Program
-{
-    pub fn new() -> Self
-    {
-        let program = unsafe { gl::CreateProgram() };
-
-        Self { program }
-    }
-
-    pub fn attach(&self, shader: &Shader)
-    {
-        unsafe {
-            gl::AttachShader(self.program, shader.shader);
-        }
-    }
-
-    pub fn link(&self) -> Result<(), Error>
-    {
-        unsafe {
-            gl::LinkProgram(self.program);
-        }
-
-        let mut link_success = gl::types::GLint::default();
-
-        unsafe {
-            gl::GetProgramiv(self.program, gl::LINK_STATUS, &mut link_success);
-        }
-
-        if link_success == 0 {
-            let info_log = self.get_info_log();
-
-            return Err(Error::CompileFailed(info_log));
-        }
-
-        Ok(())
-    }
-
-    pub fn activate(&self)
-    {
-        unsafe {
-            gl::UseProgram(self.program);
-        }
-    }
-
-    fn get_info_log(&self) -> String
-    {
-        let mut buf = vec![gl::types::GLchar::default(); 512];
-
-        unsafe {
-            #[allow(clippy::cast_possible_wrap, clippy::cast_possible_truncation)]
-            gl::GetProgramInfoLog(
-                self.program,
-                buf.len() as gl::types::GLsizei,
-                null_mut(),
-                buf.as_mut_ptr(),
-            );
-        }
-
-        let info_log = unsafe { CStr::from_ptr(buf.as_ptr()) };
-
-        unsafe { String::from_utf8_unchecked(info_log.to_bytes().to_vec()) }
-    }
-}
-
-impl Drop for Program
-{
-    fn drop(&mut self)
-    {
-        unsafe {
-            gl::DeleteProgram(self.program);
-        }
-    }
-}
-
-/// Shader error.
-#[derive(Debug, thiserror::Error)]
-pub enum Error
-{
-    #[error("All characters in source are not within the ASCII range")]
-    SourceNotAscii,
-
-    #[error("Failed to compile: {0}")]
-    CompileFailed(String),
-}
-- 
cgit v1.2.3-18-g5258