diff options
Diffstat (limited to 'src/win.rs')
| -rw-r--r-- | src/win.rs | 108 |
1 files changed, 70 insertions, 38 deletions
@@ -428,7 +428,10 @@ impl Shader { unsafe fn new_with_id(id: GLuint, r#type: GLenum, source: &str) -> Result<Self, String> { if id == 0 { - return Err(format!("couldn't create shader (GL error {})", gl::GetError())); + return Err(format!( + "couldn't create shader (GL error {})", + gl::GetError() + )); } { @@ -481,7 +484,10 @@ out vec4 o_color; } } - Ok(Self { id, _unused: 0 as _ }) + Ok(Self { + id, + _unused: 0 as _, + }) } } @@ -500,16 +506,18 @@ pub struct Program { impl Program { unsafe fn new() -> Self { let id = gl::CreateProgram(); - Self { id, _unused: 0 as _ } + Self { + id, + _unused: 0 as _, + } } - + unsafe fn new_with_shaders(shaders: &[Shader]) -> Result<Self, String> { let mut program = Self::new(); program.relink(shaders)?; Ok(program) } - unsafe fn relink(&mut self, shaders: &[Shader]) -> Result<(), String> { let id = self.id; for shader in shaders { @@ -535,7 +543,7 @@ impl Program { return Err("failed to link".to_string()); } } - + for shader in shaders { gl::DetachShader(id, shader.id); } @@ -695,12 +703,17 @@ impl Texture { _unused: 0 as _, } } - + unsafe fn bind(&self) { gl::BindTexture(gl::TEXTURE_2D, self.id); } - - unsafe fn set_data<T: Color>(&mut self, data: &[T], width: usize, height: usize) -> Result<(), String> { + + unsafe fn set_data<T: Color>( + &mut self, + data: &[T], + width: usize, + height: usize, + ) -> Result<(), String> { self.width = width; self.height = height; let width: GLsizei = width.try_into().map_err(|_| "width too large")?; @@ -738,27 +751,33 @@ impl Texture { ); Ok(()) } - + pub fn width(&self) -> usize { self.width } - + pub fn height(&self) -> usize { self.height } - + /// panicks if `data` is the wrong length (should be exactly `self.width() * self.height()`). - unsafe fn get_data<T: Color>(&mut self, data: &mut [T]) { - assert_eq!(data.len(), self.width * self.height, "Bad data size."); - self.bind(); - gl::GetTexImage(gl::TEXTURE_2D, 0, T::GL_FORMAT, T::GL_TYPE, data.as_ptr() as *mut GLvoid); - } - - unsafe fn get_data_vec<T: Color>(&mut self) -> Vec<T> { + unsafe fn get_data<T: Color>(&mut self, data: &mut [T]) { + assert_eq!(data.len(), self.width * self.height, "Bad data size."); + self.bind(); + gl::GetTexImage( + gl::TEXTURE_2D, + 0, + T::GL_FORMAT, + T::GL_TYPE, + data.as_ptr() as *mut GLvoid, + ); + } + + unsafe fn get_data_vec<T: Color>(&mut self) -> Vec<T> { let mut data = vec![T::default(); self.width * self.height]; - self.get_data(&mut data); - data - } + self.get_data(&mut data); + data + } } impl Drop for Texture { @@ -811,7 +830,7 @@ pub enum FramebufferAttachment { Color7, Depth, Stencil, - DepthStencil + DepthStencil, } impl FramebufferAttachment { @@ -842,24 +861,32 @@ impl Framebuffer { unsafe fn new() -> Self { let mut id: GLuint = 0; gl::GenFramebuffers(1, (&mut id) as *mut GLuint); - Self { id, _unused: 0 as _ } + Self { + id, + _unused: 0 as _, + } } - + unsafe fn bind(&self) { gl::BindTexture(gl::FRAMEBUFFER, self.id); } - + unsafe fn unbind() { gl::BindTexture(gl::FRAMEBUFFER, 0); } - + unsafe fn set_texture(&mut self, attachment: FramebufferAttachment, texture: &Texture) { self.bind(); texture.bind(); - gl::FramebufferTexture2D(gl::FRAMEBUFFER, attachment.to_gl(), gl::TEXTURE_2D, texture.id, 0); + gl::FramebufferTexture2D( + gl::FRAMEBUFFER, + attachment.to_gl(), + gl::TEXTURE_2D, + texture.id, + 0, + ); Self::unbind(); } - } impl Drop for Framebuffer { @@ -935,7 +962,7 @@ impl Window { sdl::set_relative_mouse_mode(relative); } } - + /// new empty shader program pub fn new_program(&mut self) -> Program { unsafe { Program::new() } @@ -950,7 +977,7 @@ impl Window { let fshader = unsafe { Shader::new(gl::FRAGMENT_SHADER, source_fshader) }?; unsafe { Program::new_with_shaders(&[vshader, fshader]) } } - + pub fn link_program( &mut self, program: &mut Program, @@ -995,18 +1022,23 @@ impl Window { pub fn array_attrib4f(&mut self, array: &mut VertexArray, name: &str, offset: usize) -> bool { self.array_attribnf(array, 4, name, offset) } - + pub fn create_framebuffer(&mut self) -> Framebuffer { unsafe { Framebuffer::new() } } - + /// Attach texture to framebuffer. /// In theory this should check that `framebuffer` does not outlive `texture`, /// but that would be difficult to do in a nice way. - pub fn set_framebuffer_texture(&mut self, framebuffer: &mut Framebuffer, attachment: FramebufferAttachment, texture: &Texture) { + pub fn set_framebuffer_texture( + &mut self, + framebuffer: &mut Framebuffer, + attachment: FramebufferAttachment, + texture: &Texture, + ) { unsafe { framebuffer.set_texture(attachment, texture) }; } - + pub fn set_draw_framebuffer(&mut self, framebuffer: Option<&Framebuffer>) { match framebuffer { Some(f) => unsafe { f.bind() }, @@ -1086,19 +1118,19 @@ impl Window { unsafe { texture.set_data(data, width, height) }?; Ok(()) } - + /// get texture image /// /// panicks if `data.len() != texture.width() * texture.height()` pub fn get_texture_data<T: Color>(&mut self, texture: &mut Texture, data: &mut [T]) { unsafe { texture.get_data(data) }; } - + /// get texture image as a newly-allocated `Vec` pub fn get_texture_data_vec<T: Color>(&mut self, texture: &mut Texture) -> Vec<T> { unsafe { texture.get_data_vec() } } - + pub fn set_audio_callback(&mut self, callback: AudioCallback) -> Result<(), String> { if self.audio_data.is_some() { return Err("audio callback already set.".into()); |