diff options
Diffstat (limited to 'third_party/rust/gleam/src/gles_fns.rs')
| -rw-r--r-- | third_party/rust/gleam/src/gles_fns.rs | 2301 |
1 files changed, 2301 insertions, 0 deletions
diff --git a/third_party/rust/gleam/src/gles_fns.rs b/third_party/rust/gleam/src/gles_fns.rs new file mode 100644 index 0000000000..ee7ea70265 --- /dev/null +++ b/third_party/rust/gleam/src/gles_fns.rs @@ -0,0 +1,2301 @@ +// Copyright 2014 The Servo Project Developers. See the COPYRIGHT +// file at the top-level directory of this distribution. +// +// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or +// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license +// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your +// option. This file may not be copied, modified, or distributed +// except according to those terms. + +pub struct GlesFns { + ffi_gl_: GlesFfi, +} + +impl GlesFns { + pub unsafe fn load_with<'a, F>(loadfn: F) -> Rc<dyn Gl> + where + F: FnMut(&str) -> *const c_void, + { + let ffi_gl_ = GlesFfi::load_with(loadfn); + Rc::new(GlesFns { ffi_gl_: ffi_gl_ }) as Rc<dyn Gl> + } +} + +impl Gl for GlesFns { + fn get_type(&self) -> GlType { + GlType::Gles + } + + fn buffer_data_untyped( + &self, + target: GLenum, + size: GLsizeiptr, + data: *const GLvoid, + usage: GLenum, + ) { + unsafe { + self.ffi_gl_.BufferData(target, size, data, usage); + } + } + + fn tex_buffer(&self, _target: GLenum, _internal_format: GLenum, _buffer: GLuint) { + panic!("not supported") + } + + fn buffer_sub_data_untyped( + &self, + target: GLenum, + offset: isize, + size: GLsizeiptr, + data: *const GLvoid, + ) { + unsafe { + self.ffi_gl_.BufferSubData(target, offset, size, data); + } + } + + fn map_buffer(&self, + _target: GLenum, + _access: GLbitfield) -> *mut c_void { + panic!("not supported") + } + + fn map_buffer_range(&self, + target: GLenum, + offset: GLintptr, + length: GLsizeiptr, + access: GLbitfield) -> *mut c_void { + unsafe { + return self.ffi_gl_.MapBufferRange(target, offset, length, access); + } + } + + fn unmap_buffer(&self, target: GLenum) -> GLboolean { + unsafe { + return self.ffi_gl_.UnmapBuffer(target); + } + } + + fn shader_source(&self, shader: GLuint, strings: &[&[u8]]) { + let pointers: Vec<*const u8> = strings.iter().map(|string| (*string).as_ptr()).collect(); + let lengths: Vec<GLint> = strings.iter().map(|string| string.len() as GLint).collect(); + unsafe { + self.ffi_gl_.ShaderSource( + shader, + pointers.len() as GLsizei, + pointers.as_ptr() as *const *const GLchar, + lengths.as_ptr(), + ); + } + drop(lengths); + drop(pointers); + } + + #[allow(unused_variables)] + fn read_buffer(&self, mode: GLenum) { + panic!("not supported") + } + + fn read_pixels_into_buffer( + &self, + x: GLint, + y: GLint, + width: GLsizei, + height: GLsizei, + format: GLenum, + pixel_type: GLenum, + dst_buffer: &mut [u8], + ) { + // Assumes that the user properly allocated the size for dst_buffer. + let mut row_length = 0; + unsafe { + self.ffi_gl_.GetIntegerv(ffi::PACK_ROW_LENGTH, &mut row_length as _); + } + if row_length == 0 { + row_length = width; + } else { + assert!(row_length >= width); + } + assert_eq!(calculate_length(row_length, height, format, pixel_type), dst_buffer.len()); + + unsafe { + // We don't want any alignment padding on pixel rows. + self.ffi_gl_.PixelStorei(ffi::PACK_ALIGNMENT, 1); + self.ffi_gl_.ReadPixels( + x, + y, + width, + height, + format, + pixel_type, + dst_buffer.as_mut_ptr() as *mut c_void, + ); + } + } + + fn read_pixels( + &self, + x: GLint, + y: GLint, + width: GLsizei, + height: GLsizei, + format: GLenum, + pixel_type: GLenum, + ) -> Vec<u8> { + let len = calculate_length(width, height, format, pixel_type); + let mut pixels: Vec<u8> = Vec::new(); + pixels.reserve(len); + unsafe { + pixels.set_len(len); + } + + self.read_pixels_into_buffer( + x, + y, + width, + height, + format, + pixel_type, + pixels.as_mut_slice(), + ); + + pixels + } + + unsafe fn read_pixels_into_pbo(&self, + x: GLint, + y: GLint, + width: GLsizei, + height: GLsizei, + format: GLenum, + pixel_type: GLenum) { + self.ffi_gl_.ReadPixels(x, y, width, height, format, pixel_type, ptr::null_mut()); + } + + fn sample_coverage(&self, value: GLclampf, invert: bool) { + unsafe { + self.ffi_gl_.SampleCoverage(value, invert as GLboolean); + } + } + + fn polygon_offset(&self, factor: GLfloat, units: GLfloat) { + unsafe { + self.ffi_gl_.PolygonOffset(factor, units); + } + } + + fn pixel_store_i(&self, name: GLenum, param: GLint) { + unsafe { + self.ffi_gl_.PixelStorei(name, param); + } + } + + fn gen_buffers(&self, n: GLsizei) -> Vec<GLuint> { + let mut result = vec![0 as GLuint; n as usize]; + unsafe { + self.ffi_gl_.GenBuffers(n, result.as_mut_ptr()); + } + result + } + + fn gen_renderbuffers(&self, n: GLsizei) -> Vec<GLuint> { + let mut result = vec![0 as GLuint; n as usize]; + unsafe { + self.ffi_gl_.GenRenderbuffers(n, result.as_mut_ptr()); + } + result + } + + fn gen_framebuffers(&self, n: GLsizei) -> Vec<GLuint> { + let mut result = vec![0 as GLuint; n as usize]; + unsafe { + self.ffi_gl_.GenFramebuffers(n, result.as_mut_ptr()); + } + result + } + + fn gen_textures(&self, n: GLsizei) -> Vec<GLuint> { + let mut result = vec![0 as GLuint; n as usize]; + unsafe { + self.ffi_gl_.GenTextures(n, result.as_mut_ptr()); + } + result + } + + fn gen_vertex_arrays(&self, n: GLsizei) -> Vec<GLuint> { + let mut result = vec![0 as GLuint; n as usize]; + unsafe { + self.ffi_gl_.GenVertexArrays(n, result.as_mut_ptr()); + } + result + } + + fn gen_vertex_arrays_apple(&self, _n: GLsizei) -> Vec<GLuint> { + panic!("not supported") + } + + fn gen_queries(&self, n: GLsizei) -> Vec<GLuint> { + if !self.ffi_gl_.GenQueriesEXT.is_loaded() { + return Vec::new(); + } + let mut result = vec![0 as GLuint; n as usize]; + unsafe { + self.ffi_gl_.GenQueriesEXT(n, result.as_mut_ptr()); + } + result + } + + fn begin_query(&self, target: GLenum, id: GLuint) { + if !self.ffi_gl_.BeginQueryEXT.is_loaded() { + return; + } + unsafe { + self.ffi_gl_.BeginQueryEXT(target, id); + } + } + + fn end_query(&self, target: GLenum) { + if !self.ffi_gl_.EndQueryEXT.is_loaded() { + return; + } + unsafe { + self.ffi_gl_.EndQueryEXT(target); + } + } + + fn query_counter(&self, id: GLuint, target: GLenum) { + if !self.ffi_gl_.QueryCounterEXT.is_loaded() { + return; + } + unsafe { + self.ffi_gl_.QueryCounterEXT(id, target); + } + } + + fn get_query_object_iv(&self, id: GLuint, pname: GLenum) -> i32 { + if !self.ffi_gl_.GetQueryObjectivEXT.is_loaded() { + return 0; + } + let mut result = 0; + unsafe { + self.ffi_gl_.GetQueryObjectivEXT(id, pname, &mut result); + } + result + } + + fn get_query_object_uiv(&self, id: GLuint, pname: GLenum) -> u32 { + if !self.ffi_gl_.GetQueryObjectuivEXT.is_loaded() { + return 0; + } + let mut result = 0; + unsafe { + self.ffi_gl_.GetQueryObjectuivEXT(id, pname, &mut result); + } + result + } + + fn get_query_object_i64v(&self, id: GLuint, pname: GLenum) -> i64 { + if !self.ffi_gl_.GetQueryObjecti64vEXT.is_loaded() { + return 0; + } + let mut result = 0; + unsafe { + self.ffi_gl_.GetQueryObjecti64vEXT(id, pname, &mut result); + } + result + } + + fn get_query_object_ui64v(&self, id: GLuint, pname: GLenum) -> u64 { + if !self.ffi_gl_.GetQueryObjectui64vEXT.is_loaded() { + return 0; + } + let mut result = 0; + unsafe { + self.ffi_gl_.GetQueryObjectui64vEXT(id, pname, &mut result); + } + result + } + + fn delete_queries(&self, queries: &[GLuint]) { + if !self.ffi_gl_.DeleteQueriesEXT.is_loaded() { + return; + } + unsafe { + self.ffi_gl_ + .DeleteQueriesEXT(queries.len() as GLsizei, queries.as_ptr()); + } + } + + fn delete_vertex_arrays(&self, vertex_arrays: &[GLuint]) { + unsafe { + self.ffi_gl_ + .DeleteVertexArrays(vertex_arrays.len() as GLsizei, vertex_arrays.as_ptr()); + } + } + + fn delete_vertex_arrays_apple(&self, _vertex_arrays: &[GLuint]) { + panic!("not supported") + } + + fn delete_buffers(&self, buffers: &[GLuint]) { + unsafe { + self.ffi_gl_ + .DeleteBuffers(buffers.len() as GLsizei, buffers.as_ptr()); + } + } + + fn delete_renderbuffers(&self, renderbuffers: &[GLuint]) { + unsafe { + self.ffi_gl_ + .DeleteRenderbuffers(renderbuffers.len() as GLsizei, renderbuffers.as_ptr()); + } + } + + fn delete_framebuffers(&self, framebuffers: &[GLuint]) { + unsafe { + self.ffi_gl_ + .DeleteFramebuffers(framebuffers.len() as GLsizei, framebuffers.as_ptr()); + } + } + + fn delete_textures(&self, textures: &[GLuint]) { + unsafe { + self.ffi_gl_ + .DeleteTextures(textures.len() as GLsizei, textures.as_ptr()); + } + } + + fn framebuffer_renderbuffer( + &self, + target: GLenum, + attachment: GLenum, + renderbuffertarget: GLenum, + renderbuffer: GLuint, + ) { + unsafe { + self.ffi_gl_.FramebufferRenderbuffer( + target, + attachment, + renderbuffertarget, + renderbuffer, + ); + } + } + + fn renderbuffer_storage( + &self, + target: GLenum, + internalformat: GLenum, + width: GLsizei, + height: GLsizei, + ) { + unsafe { + self.ffi_gl_ + .RenderbufferStorage(target, internalformat, width, height); + } + } + + fn depth_func(&self, func: GLenum) { + unsafe { + self.ffi_gl_.DepthFunc(func); + } + } + + fn active_texture(&self, texture: GLenum) { + unsafe { + self.ffi_gl_.ActiveTexture(texture); + } + } + + fn attach_shader(&self, program: GLuint, shader: GLuint) { + unsafe { + self.ffi_gl_.AttachShader(program, shader); + } + } + + fn bind_attrib_location(&self, program: GLuint, index: GLuint, name: &str) { + let c_string = CString::new(name).unwrap(); + unsafe { + self.ffi_gl_ + .BindAttribLocation(program, index, c_string.as_ptr()) + } + } + + // https://www.khronos.org/registry/OpenGL-Refpages/es2.0/xhtml/glGetUniform.xml + unsafe fn get_uniform_iv(&self, program: GLuint, location: GLint, result: &mut [GLint]) { + assert!(!result.is_empty()); + self.ffi_gl_ + .GetUniformiv(program, location, result.as_mut_ptr()); + } + + // https://www.khronos.org/registry/OpenGL-Refpages/es2.0/xhtml/glGetUniform.xml + unsafe fn get_uniform_fv(&self, program: GLuint, location: GLint, result: &mut [GLfloat]) { + assert!(!result.is_empty()); + self.ffi_gl_ + .GetUniformfv(program, location, result.as_mut_ptr()); + } + + fn get_uniform_block_index(&self, program: GLuint, name: &str) -> GLuint { + let c_string = CString::new(name).unwrap(); + unsafe { + self.ffi_gl_ + .GetUniformBlockIndex(program, c_string.as_ptr()) + } + } + + fn get_uniform_indices(&self, program: GLuint, names: &[&str]) -> Vec<GLuint> { + let c_strings: Vec<CString> = names.iter().map(|n| CString::new(*n).unwrap()).collect(); + let pointers: Vec<*const GLchar> = c_strings.iter().map(|string| string.as_ptr()).collect(); + let mut result = Vec::with_capacity(c_strings.len()); + unsafe { + result.set_len(c_strings.len()); + self.ffi_gl_.GetUniformIndices( + program, + pointers.len() as GLsizei, + pointers.as_ptr(), + result.as_mut_ptr(), + ); + } + result + } + + fn bind_buffer_base(&self, target: GLenum, index: GLuint, buffer: GLuint) { + unsafe { + self.ffi_gl_.BindBufferBase(target, index, buffer); + } + } + + fn bind_buffer_range( + &self, + target: GLenum, + index: GLuint, + buffer: GLuint, + offset: GLintptr, + size: GLsizeiptr, + ) { + unsafe { + self.ffi_gl_ + .BindBufferRange(target, index, buffer, offset, size); + } + } + + fn uniform_block_binding( + &self, + program: GLuint, + uniform_block_index: GLuint, + uniform_block_binding: GLuint, + ) { + unsafe { + self.ffi_gl_ + .UniformBlockBinding(program, uniform_block_index, uniform_block_binding); + } + } + + fn bind_buffer(&self, target: GLenum, buffer: GLuint) { + unsafe { + self.ffi_gl_.BindBuffer(target, buffer); + } + } + + fn bind_vertex_array(&self, vao: GLuint) { + unsafe { + self.ffi_gl_.BindVertexArray(vao); + } + } + + fn bind_vertex_array_apple(&self, _vao: GLuint) { + panic!("not supported") + } + + fn bind_renderbuffer(&self, target: GLenum, renderbuffer: GLuint) { + unsafe { + self.ffi_gl_.BindRenderbuffer(target, renderbuffer); + } + } + + fn bind_framebuffer(&self, target: GLenum, framebuffer: GLuint) { + unsafe { + self.ffi_gl_.BindFramebuffer(target, framebuffer); + } + } + + fn bind_texture(&self, target: GLenum, texture: GLuint) { + unsafe { + self.ffi_gl_.BindTexture(target, texture); + } + } + + fn bind_vertex_buffer(&self, binding_index: GLuint, buffer: GLuint, offset: GLintptr, stride: GLint) { + unsafe { self.ffi_gl_.BindVertexBuffer(binding_index, buffer, offset, stride) } + } + + fn draw_buffers(&self, bufs: &[GLenum]) { + unsafe { + self.ffi_gl_ + .DrawBuffers(bufs.len() as GLsizei, bufs.as_ptr()); + } + } + + // FIXME: Does not verify buffer size -- unsafe! + fn tex_image_2d( + &self, + target: GLenum, + level: GLint, + internal_format: GLint, + width: GLsizei, + height: GLsizei, + border: GLint, + format: GLenum, + ty: GLenum, + opt_data: Option<&[u8]>, + ) { + match opt_data { + Some(data) => unsafe { + self.ffi_gl_.TexImage2D( + target, + level, + internal_format, + width, + height, + border, + format, + ty, + data.as_ptr() as *const GLvoid, + ); + }, + None => unsafe { + self.ffi_gl_.TexImage2D( + target, + level, + internal_format, + width, + height, + border, + format, + ty, + ptr::null(), + ); + }, + } + } + + fn compressed_tex_image_2d( + &self, + target: GLenum, + level: GLint, + internal_format: GLenum, + width: GLsizei, + height: GLsizei, + border: GLint, + data: &[u8], + ) { + unsafe { + self.ffi_gl_.CompressedTexImage2D( + target, + level, + internal_format, + width, + height, + border, + data.len() as GLsizei, + data.as_ptr() as *const GLvoid, + ); + } + } + + fn compressed_tex_sub_image_2d( + &self, + target: GLenum, + level: GLint, + xoffset: GLint, + yoffset: GLint, + width: GLsizei, + height: GLsizei, + format: GLenum, + data: &[u8], + ) { + unsafe { + self.ffi_gl_.CompressedTexSubImage2D( + target, + level, + xoffset, + yoffset, + width, + height, + format, + data.len() as GLsizei, + data.as_ptr() as *const GLvoid, + ); + } + } + + // FIXME: Does not verify buffer size -- unsafe! + fn tex_image_3d( + &self, + target: GLenum, + level: GLint, + internal_format: GLint, + width: GLsizei, + height: GLsizei, + depth: GLsizei, + border: GLint, + format: GLenum, + ty: GLenum, + opt_data: Option<&[u8]>, + ) { + unsafe { + let pdata = match opt_data { + Some(data) => mem::transmute(data.as_ptr()), + None => ptr::null(), + }; + self.ffi_gl_.TexImage3D( + target, + level, + internal_format, + width, + height, + depth, + border, + format, + ty, + pdata, + ); + } + } + + fn copy_tex_image_2d( + &self, + target: GLenum, + level: GLint, + internal_format: GLenum, + x: GLint, + y: GLint, + width: GLsizei, + height: GLsizei, + border: GLint, + ) { + unsafe { + self.ffi_gl_.CopyTexImage2D( + target, + level, + internal_format, + x, + y, + width, + height, + border, + ); + } + } + + fn copy_tex_sub_image_2d( + &self, + target: GLenum, + level: GLint, + xoffset: GLint, + yoffset: GLint, + x: GLint, + y: GLint, + width: GLsizei, + height: GLsizei, + ) { + unsafe { + self.ffi_gl_ + .CopyTexSubImage2D(target, level, xoffset, yoffset, x, y, width, height); + } + } + + fn copy_tex_sub_image_3d( + &self, + target: GLenum, + level: GLint, + xoffset: GLint, + yoffset: GLint, + zoffset: GLint, + x: GLint, + y: GLint, + width: GLsizei, + height: GLsizei, + ) { + unsafe { + self.ffi_gl_.CopyTexSubImage3D( + target, level, xoffset, yoffset, zoffset, x, y, width, height, + ); + } + } + + fn tex_sub_image_2d( + &self, + target: GLenum, + level: GLint, + xoffset: GLint, + yoffset: GLint, + width: GLsizei, + height: GLsizei, + format: GLenum, + ty: GLenum, + data: &[u8], + ) { + unsafe { + self.ffi_gl_.TexSubImage2D( + target, + level, + xoffset, + yoffset, + width, + height, + format, + ty, + data.as_ptr() as *const c_void, + ); + } + } + + fn tex_sub_image_2d_pbo( + &self, + target: GLenum, + level: GLint, + xoffset: GLint, + yoffset: GLint, + width: GLsizei, + height: GLsizei, + format: GLenum, + ty: GLenum, + offset: usize, + ) { + unsafe { + self.ffi_gl_.TexSubImage2D( + target, + level, + xoffset, + yoffset, + width, + height, + format, + ty, + offset as *const c_void, + ); + } + } + + fn tex_sub_image_3d( + &self, + target: GLenum, + level: GLint, + xoffset: GLint, + yoffset: GLint, + zoffset: GLint, + width: GLsizei, + height: GLsizei, + depth: GLsizei, + format: GLenum, + ty: GLenum, + data: &[u8], + ) { + unsafe { + self.ffi_gl_.TexSubImage3D( + target, + level, + xoffset, + yoffset, + zoffset, + width, + height, + depth, + format, + ty, + data.as_ptr() as *const c_void, + ); + } + } + + fn tex_sub_image_3d_pbo( + &self, + target: GLenum, + level: GLint, + xoffset: GLint, + yoffset: GLint, + zoffset: GLint, + width: GLsizei, + height: GLsizei, + depth: GLsizei, + format: GLenum, + ty: GLenum, + offset: usize, + ) { + unsafe { + self.ffi_gl_.TexSubImage3D( + target, + level, + xoffset, + yoffset, + zoffset, + width, + height, + depth, + format, + ty, + offset as *const c_void, + ); + } + } + + fn tex_storage_2d( + &self, + target: GLenum, + levels: GLint, + internal_format: GLenum, + width: GLsizei, + height: GLsizei, + ) { + unsafe { + self.ffi_gl_ + .TexStorage2D(target, levels, internal_format, width, height); + } + } + + fn tex_storage_3d( + &self, + target: GLenum, + levels: GLint, + internal_format: GLenum, + width: GLsizei, + height: GLsizei, + depth: GLsizei, + ) { + unsafe { + self.ffi_gl_ + .TexStorage3D(target, levels, internal_format, width, height, depth); + } + } + + #[allow(unused_variables)] + fn get_tex_image_into_buffer( + &self, + target: GLenum, + level: GLint, + format: GLenum, + ty: GLenum, + output: &mut [u8], + ) { + panic!("not supported"); + } + + unsafe fn copy_image_sub_data( + &self, + src_name: GLuint, + src_target: GLenum, + src_level: GLint, + src_x: GLint, + src_y: GLint, + src_z: GLint, + dst_name: GLuint, + dst_target: GLenum, + dst_level: GLint, + dst_x: GLint, + dst_y: GLint, + dst_z: GLint, + src_width: GLsizei, + src_height: GLsizei, + src_depth: GLsizei, + ) { + self.ffi_gl_.CopyImageSubDataEXT( + src_name, src_target, src_level, src_x, src_y, src_z, dst_name, dst_target, dst_level, + dst_x, dst_y, dst_z, src_width, src_height, src_depth, + ); + } + + fn invalidate_framebuffer(&self, target: GLenum, attachments: &[GLenum]) { + unsafe { + self.ffi_gl_.InvalidateFramebuffer( + target, + attachments.len() as GLsizei, + attachments.as_ptr(), + ); + } + } + + fn invalidate_sub_framebuffer( + &self, + target: GLenum, + attachments: &[GLenum], + xoffset: GLint, + yoffset: GLint, + width: GLsizei, + height: GLsizei, + ) { + unsafe { + self.ffi_gl_.InvalidateSubFramebuffer( + target, + attachments.len() as GLsizei, + attachments.as_ptr(), + xoffset, + yoffset, + width, + height, + ); + } + } + + #[inline] + unsafe fn get_integer_v(&self, name: GLenum, result: &mut [GLint]) { + assert!(!result.is_empty()); + self.ffi_gl_.GetIntegerv(name, result.as_mut_ptr()); + } + + #[inline] + unsafe fn get_integer_64v(&self, name: GLenum, result: &mut [GLint64]) { + assert!(!result.is_empty()); + self.ffi_gl_.GetInteger64v(name, result.as_mut_ptr()); + } + + #[inline] + unsafe fn get_integer_iv(&self, name: GLenum, index: GLuint, result: &mut [GLint]) { + assert!(!result.is_empty()); + self.ffi_gl_.GetIntegeri_v(name, index, result.as_mut_ptr()); + } + + #[inline] + unsafe fn get_integer_64iv(&self, name: GLenum, index: GLuint, result: &mut [GLint64]) { + assert!(!result.is_empty()); + self.ffi_gl_ + .GetInteger64i_v(name, index, result.as_mut_ptr()); + } + + #[inline] + unsafe fn get_boolean_v(&self, name: GLenum, result: &mut [GLboolean]) { + assert!(!result.is_empty()); + self.ffi_gl_.GetBooleanv(name, result.as_mut_ptr()); + } + + #[inline] + unsafe fn get_float_v(&self, name: GLenum, result: &mut [GLfloat]) { + assert!(!result.is_empty()); + self.ffi_gl_.GetFloatv(name, result.as_mut_ptr()); + } + + fn get_renderbuffer_parameter_iv(&self, target: GLenum, pname: GLenum) -> GLint { + let mut result: GLint = 0; + unsafe { + self.ffi_gl_ + .GetRenderbufferParameteriv(target, pname, &mut result); + } + result + } + + fn get_framebuffer_attachment_parameter_iv( + &self, + target: GLenum, + attachment: GLenum, + pname: GLenum, + ) -> GLint { + let mut result: GLint = 0; + unsafe { + self.ffi_gl_.GetFramebufferAttachmentParameteriv( + target, + attachment, + pname, + &mut result, + ); + } + result + } + + fn get_tex_parameter_iv(&self, target: GLenum, pname: GLenum) -> GLint { + let mut result: GLint = 0; + unsafe { + self.ffi_gl_.GetTexParameteriv(target, pname, &mut result); + } + result + } + + fn get_tex_parameter_fv(&self, target: GLenum, pname: GLenum) -> GLfloat { + let mut result: GLfloat = 0.0; + unsafe { + self.ffi_gl_.GetTexParameterfv(target, pname, &mut result); + } + result + } + + fn tex_parameter_i(&self, target: GLenum, pname: GLenum, param: GLint) { + unsafe { + self.ffi_gl_.TexParameteri(target, pname, param); + } + } + + fn tex_parameter_f(&self, target: GLenum, pname: GLenum, param: GLfloat) { + unsafe { + self.ffi_gl_.TexParameterf(target, pname, param); + } + } + + fn framebuffer_texture_2d( + &self, + target: GLenum, + attachment: GLenum, + textarget: GLenum, + texture: GLuint, + level: GLint, + ) { + unsafe { + self.ffi_gl_ + .FramebufferTexture2D(target, attachment, textarget, texture, level); + } + } + + fn framebuffer_texture_layer( + &self, + target: GLenum, + attachment: GLenum, + texture: GLuint, + level: GLint, + layer: GLint, + ) { + unsafe { + self.ffi_gl_ + .FramebufferTextureLayer(target, attachment, texture, level, layer); + } + } + + fn blit_framebuffer( + &self, + src_x0: GLint, + src_y0: GLint, + src_x1: GLint, + src_y1: GLint, + dst_x0: GLint, + dst_y0: GLint, + dst_x1: GLint, + dst_y1: GLint, + mask: GLbitfield, + filter: GLenum, + ) { + unsafe { + self.ffi_gl_.BlitFramebuffer( + src_x0, src_y0, src_x1, src_y1, dst_x0, dst_y0, dst_x1, dst_y1, mask, filter, + ); + } + } + + fn vertex_attrib_4f(&self, index: GLuint, x: GLfloat, y: GLfloat, z: GLfloat, w: GLfloat) { + unsafe { self.ffi_gl_.VertexAttrib4f(index, x, y, z, w) } + } + + fn vertex_attrib_binding(&self, attrib_index: GLuint, binding_index: GLuint) { + unsafe { self.ffi_gl_.VertexAttribBinding(attrib_index, binding_index) } + } + + fn vertex_attrib_pointer_f32( + &self, + index: GLuint, + size: GLint, + normalized: bool, + stride: GLsizei, + offset: GLuint, + ) { + unsafe { + self.ffi_gl_.VertexAttribPointer( + index, + size, + ffi::FLOAT, + normalized as GLboolean, + stride, + offset as *const GLvoid, + ) + } + } + + fn vertex_attrib_pointer( + &self, + index: GLuint, + size: GLint, + type_: GLenum, + normalized: bool, + stride: GLsizei, + offset: GLuint, + ) { + unsafe { + self.ffi_gl_.VertexAttribPointer( + index, + size, + type_, + normalized as GLboolean, + stride, + offset as *const GLvoid, + ) + } + } + + fn vertex_attrib_i_pointer( + &self, + index: GLuint, + size: GLint, + type_: GLenum, + stride: GLsizei, + offset: GLuint, + ) { + unsafe { + self.ffi_gl_ + .VertexAttribIPointer(index, size, type_, stride, offset as *const GLvoid) + } + } + + fn vertex_attrib_divisor(&self, index: GLuint, divisor: GLuint) { + unsafe { self.ffi_gl_.VertexAttribDivisor(index, divisor) } + } + + fn vertex_attrib_format(&self, attrib_index: GLuint, size: GLint, type_: GLenum, normalized: bool, relative_offset: GLuint) { + unsafe { self.ffi_gl_.VertexAttribFormat(attrib_index, size, type_, normalized as GLboolean, relative_offset) } + } + + fn vertex_attrib_i_format(&self, attrib_index: GLuint, size: GLint, type_: GLenum, relative_offset: GLuint) { + unsafe { self.ffi_gl_.VertexAttribIFormat(attrib_index, size, type_, relative_offset) } + } + + fn vertex_binding_divisor(&self, binding_index: GLuint, divisor: GLuint) { + unsafe { self.ffi_gl_.VertexBindingDivisor(binding_index, divisor) } + } + + fn viewport(&self, x: GLint, y: GLint, width: GLsizei, height: GLsizei) { + unsafe { + self.ffi_gl_.Viewport(x, y, width, height); + } + } + + fn scissor(&self, x: GLint, y: GLint, width: GLsizei, height: GLsizei) { + unsafe { + self.ffi_gl_.Scissor(x, y, width, height); + } + } + + fn line_width(&self, width: GLfloat) { + unsafe { + self.ffi_gl_.LineWidth(width); + } + } + + fn use_program(&self, program: GLuint) { + unsafe { + self.ffi_gl_.UseProgram(program); + } + } + + fn validate_program(&self, program: GLuint) { + unsafe { + self.ffi_gl_.ValidateProgram(program); + } + } + + fn draw_arrays(&self, mode: GLenum, first: GLint, count: GLsizei) { + unsafe { + return self.ffi_gl_.DrawArrays(mode, first, count); + } + } + + fn draw_arrays_instanced( + &self, + mode: GLenum, + first: GLint, + count: GLsizei, + primcount: GLsizei, + ) { + unsafe { + return self + .ffi_gl_ + .DrawArraysInstanced(mode, first, count, primcount); + } + } + + fn draw_elements( + &self, + mode: GLenum, + count: GLsizei, + element_type: GLenum, + indices_offset: GLuint, + ) { + unsafe { + return self.ffi_gl_.DrawElements( + mode, + count, + element_type, + indices_offset as *const c_void, + ); + } + } + + fn draw_elements_instanced( + &self, + mode: GLenum, + count: GLsizei, + element_type: GLenum, + indices_offset: GLuint, + primcount: GLsizei, + ) { + unsafe { + return self.ffi_gl_.DrawElementsInstanced( + mode, + count, + element_type, + indices_offset as *const c_void, + primcount, + ); + } + } + + fn blend_color(&self, r: f32, g: f32, b: f32, a: f32) { + unsafe { + self.ffi_gl_.BlendColor(r, g, b, a); + } + } + + fn blend_func(&self, sfactor: GLenum, dfactor: GLenum) { + unsafe { + self.ffi_gl_.BlendFunc(sfactor, dfactor); + } + } + + fn blend_func_separate( + &self, + src_rgb: GLenum, + dest_rgb: GLenum, + src_alpha: GLenum, + dest_alpha: GLenum, + ) { + unsafe { + self.ffi_gl_ + .BlendFuncSeparate(src_rgb, dest_rgb, src_alpha, dest_alpha); + } + } + + fn blend_equation(&self, mode: GLenum) { + unsafe { + self.ffi_gl_.BlendEquation(mode); + } + } + + fn blend_equation_separate(&self, mode_rgb: GLenum, mode_alpha: GLenum) { + unsafe { + self.ffi_gl_.BlendEquationSeparate(mode_rgb, mode_alpha); + } + } + + fn color_mask(&self, r: bool, g: bool, b: bool, a: bool) { + unsafe { + self.ffi_gl_.ColorMask( + r as GLboolean, + g as GLboolean, + b as GLboolean, + a as GLboolean, + ); + } + } + + fn cull_face(&self, mode: GLenum) { + unsafe { + self.ffi_gl_.CullFace(mode); + } + } + + fn front_face(&self, mode: GLenum) { + unsafe { + self.ffi_gl_.FrontFace(mode); + } + } + + fn enable(&self, cap: GLenum) { + unsafe { + self.ffi_gl_.Enable(cap); + } + } + + fn disable(&self, cap: GLenum) { + unsafe { + self.ffi_gl_.Disable(cap); + } + } + + fn hint(&self, param_name: GLenum, param_val: GLenum) { + unsafe { + self.ffi_gl_.Hint(param_name, param_val); + } + } + + fn is_enabled(&self, cap: GLenum) -> GLboolean { + unsafe { self.ffi_gl_.IsEnabled(cap) } + } + + fn is_shader(&self, shader: GLuint) -> GLboolean { + unsafe { self.ffi_gl_.IsShader(shader) } + } + + fn is_texture(&self, texture: GLenum) -> GLboolean { + unsafe { self.ffi_gl_.IsTexture(texture) } + } + + fn is_framebuffer(&self, framebuffer: GLenum) -> GLboolean { + unsafe { self.ffi_gl_.IsFramebuffer(framebuffer) } + } + + fn is_renderbuffer(&self, renderbuffer: GLenum) -> GLboolean { + unsafe { self.ffi_gl_.IsRenderbuffer(renderbuffer) } + } + + fn check_frame_buffer_status(&self, target: GLenum) -> GLenum { + unsafe { self.ffi_gl_.CheckFramebufferStatus(target) } + } + + fn enable_vertex_attrib_array(&self, index: GLuint) { + unsafe { + self.ffi_gl_.EnableVertexAttribArray(index); + } + } + + fn disable_vertex_attrib_array(&self, index: GLuint) { + unsafe { + self.ffi_gl_.DisableVertexAttribArray(index); + } + } + + fn uniform_1f(&self, location: GLint, v0: GLfloat) { + unsafe { + self.ffi_gl_.Uniform1f(location, v0); + } + } + + fn uniform_1fv(&self, location: GLint, values: &[f32]) { + unsafe { + self.ffi_gl_ + .Uniform1fv(location, values.len() as GLsizei, values.as_ptr()); + } + } + + fn uniform_1i(&self, location: GLint, v0: GLint) { + unsafe { + self.ffi_gl_.Uniform1i(location, v0); + } + } + + fn uniform_1iv(&self, location: GLint, values: &[i32]) { + unsafe { + self.ffi_gl_ + .Uniform1iv(location, values.len() as GLsizei, values.as_ptr()); + } + } + + #[allow(unused_variables)] + fn uniform_1ui(&self, location: GLint, v0: GLuint) { + panic!("not supported") + } + + fn uniform_2f(&self, location: GLint, v0: GLfloat, v1: GLfloat) { + unsafe { + self.ffi_gl_.Uniform2f(location, v0, v1); + } + } + + fn uniform_2fv(&self, location: GLint, values: &[f32]) { + unsafe { + self.ffi_gl_ + .Uniform2fv(location, (values.len() / 2) as GLsizei, values.as_ptr()); + } + } + + fn uniform_2i(&self, location: GLint, v0: GLint, v1: GLint) { + unsafe { + self.ffi_gl_.Uniform2i(location, v0, v1); + } + } + + fn uniform_2iv(&self, location: GLint, values: &[i32]) { + unsafe { + self.ffi_gl_ + .Uniform2iv(location, (values.len() / 2) as GLsizei, values.as_ptr()); + } + } + + #[allow(unused_variables)] + fn uniform_2ui(&self, location: GLint, v0: GLuint, v1: GLuint) { + panic!("not supported") + } + + fn uniform_3f(&self, location: GLint, v0: GLfloat, v1: GLfloat, v2: GLfloat) { + unsafe { + self.ffi_gl_.Uniform3f(location, v0, v1, v2); + } + } + + fn uniform_3fv(&self, location: GLint, values: &[f32]) { + unsafe { + self.ffi_gl_ + .Uniform3fv(location, (values.len() / 3) as GLsizei, values.as_ptr()); + } + } + + fn uniform_3i(&self, location: GLint, v0: GLint, v1: GLint, v2: GLint) { + unsafe { + self.ffi_gl_.Uniform3i(location, v0, v1, v2); + } + } + + fn uniform_3iv(&self, location: GLint, values: &[i32]) { + unsafe { + self.ffi_gl_ + .Uniform3iv(location, (values.len() / 3) as GLsizei, values.as_ptr()); + } + } + + #[allow(unused_variables)] + fn uniform_3ui(&self, location: GLint, v0: GLuint, v1: GLuint, v2: GLuint) { + panic!("not supported") + } + + fn uniform_4f(&self, location: GLint, x: GLfloat, y: GLfloat, z: GLfloat, w: GLfloat) { + unsafe { + self.ffi_gl_.Uniform4f(location, x, y, z, w); + } + } + + fn uniform_4i(&self, location: GLint, x: GLint, y: GLint, z: GLint, w: GLint) { + unsafe { + self.ffi_gl_.Uniform4i(location, x, y, z, w); + } + } + + fn uniform_4iv(&self, location: GLint, values: &[i32]) { + unsafe { + self.ffi_gl_ + .Uniform4iv(location, (values.len() / 4) as GLsizei, values.as_ptr()); + } + } + + #[allow(unused_variables)] + fn uniform_4ui(&self, location: GLint, x: GLuint, y: GLuint, z: GLuint, w: GLuint) { + panic!("not supported") + } + + fn uniform_4fv(&self, location: GLint, values: &[f32]) { + unsafe { + self.ffi_gl_ + .Uniform4fv(location, (values.len() / 4) as GLsizei, values.as_ptr()); + } + } + + fn uniform_matrix_2fv(&self, location: GLint, transpose: bool, value: &[f32]) { + unsafe { + self.ffi_gl_.UniformMatrix2fv( + location, + (value.len() / 4) as GLsizei, + transpose as GLboolean, + value.as_ptr(), + ); + } + } + + fn uniform_matrix_3fv(&self, location: GLint, transpose: bool, value: &[f32]) { + unsafe { + self.ffi_gl_.UniformMatrix3fv( + location, + (value.len() / 9) as GLsizei, + transpose as GLboolean, + value.as_ptr(), + ); + } + } + + fn uniform_matrix_4fv(&self, location: GLint, transpose: bool, value: &[f32]) { + unsafe { + self.ffi_gl_.UniformMatrix4fv( + location, + (value.len() / 16) as GLsizei, + transpose as GLboolean, + value.as_ptr(), + ); + } + } + + fn depth_mask(&self, flag: bool) { + unsafe { + self.ffi_gl_.DepthMask(flag as GLboolean); + } + } + + fn depth_range(&self, near: f64, far: f64) { + unsafe { + self.ffi_gl_.DepthRangef(near as GLclampf, far as GLclampf); + } + } + + fn get_active_attrib(&self, program: GLuint, index: GLuint) -> (i32, u32, String) { + let mut buf_size = [0]; + unsafe { + self.get_program_iv(program, ffi::ACTIVE_ATTRIBUTE_MAX_LENGTH, &mut buf_size); + } + let mut name = vec![0u8; buf_size[0] as usize]; + let mut length = 0 as GLsizei; + let mut size = 0 as i32; + let mut type_ = 0 as u32; + unsafe { + self.ffi_gl_.GetActiveAttrib( + program, + index, + buf_size[0], + &mut length, + &mut size, + &mut type_, + name.as_mut_ptr() as *mut GLchar, + ); + } + name.truncate(if length > 0 { length as usize } else { 0 }); + (size, type_, String::from_utf8(name).unwrap()) + } + + fn get_active_uniform(&self, program: GLuint, index: GLuint) -> (i32, u32, String) { + let mut buf_size = [0]; + unsafe { + self.get_program_iv(program, ffi::ACTIVE_UNIFORM_MAX_LENGTH, &mut buf_size); + } + let mut name = vec![0 as u8; buf_size[0] as usize]; + let mut length: GLsizei = 0; + let mut size: i32 = 0; + let mut type_: u32 = 0; + + unsafe { + self.ffi_gl_.GetActiveUniform( + program, + index, + buf_size[0], + &mut length, + &mut size, + &mut type_, + name.as_mut_ptr() as *mut GLchar, + ); + } + + name.truncate(if length > 0 { length as usize } else { 0 }); + + (size, type_, String::from_utf8(name).unwrap()) + } + + fn get_active_uniforms_iv( + &self, + program: GLuint, + indices: Vec<GLuint>, + pname: GLenum, + ) -> Vec<GLint> { + let mut result = Vec::with_capacity(indices.len()); + unsafe { + result.set_len(indices.len()); + self.ffi_gl_.GetActiveUniformsiv( + program, + indices.len() as GLsizei, + indices.as_ptr(), + pname, + result.as_mut_ptr(), + ); + } + result + } + + fn get_active_uniform_block_i(&self, program: GLuint, index: GLuint, pname: GLenum) -> GLint { + let mut result = 0 as GLint; + unsafe { + self.ffi_gl_ + .GetActiveUniformBlockiv(program, index, pname, &mut result); + } + result + } + + fn get_active_uniform_block_iv( + &self, + program: GLuint, + index: GLuint, + pname: GLenum, + ) -> Vec<GLint> { + let count = + self.get_active_uniform_block_i(program, index, ffi::UNIFORM_BLOCK_ACTIVE_UNIFORMS); + let mut result = Vec::with_capacity(count as usize); + unsafe { + result.set_len(count as usize); + self.ffi_gl_ + .GetActiveUniformBlockiv(program, index, pname, result.as_mut_ptr()); + } + result + } + + fn get_active_uniform_block_name(&self, program: GLuint, index: GLuint) -> String { + let buf_size = + self.get_active_uniform_block_i(program, index, ffi::UNIFORM_BLOCK_NAME_LENGTH); + let mut name = vec![0 as u8; buf_size as usize]; + let mut length: GLsizei = 0; + unsafe { + self.ffi_gl_.GetActiveUniformBlockName( + program, + index, + buf_size, + &mut length, + name.as_mut_ptr() as *mut GLchar, + ); + } + name.truncate(if length > 0 { length as usize } else { 0 }); + + String::from_utf8(name).unwrap() + } + + fn get_attrib_location(&self, program: GLuint, name: &str) -> c_int { + let name = CString::new(name).unwrap(); + unsafe { self.ffi_gl_.GetAttribLocation(program, name.as_ptr()) } + } + + #[allow(unused_variables)] + fn get_frag_data_location(&self, program: GLuint, name: &str) -> c_int { + panic!("not supported") + } + + fn get_uniform_location(&self, program: GLuint, name: &str) -> c_int { + let name = CString::new(name).unwrap(); + unsafe { self.ffi_gl_.GetUniformLocation(program, name.as_ptr()) } + } + + fn get_program_info_log(&self, program: GLuint) -> String { + let mut max_len = [0]; + unsafe { + self.get_program_iv(program, ffi::INFO_LOG_LENGTH, &mut max_len); + } + if max_len[0] == 0 { + return String::new(); + } + let mut result = vec![0u8; max_len[0] as usize]; + let mut result_len = 0 as GLsizei; + unsafe { + self.ffi_gl_.GetProgramInfoLog( + program, + max_len[0] as GLsizei, + &mut result_len, + result.as_mut_ptr() as *mut GLchar, + ); + } + result.truncate(if result_len > 0 { + result_len as usize + } else { + 0 + }); + String::from_utf8(result).unwrap() + } + + #[inline] + unsafe fn get_program_iv(&self, program: GLuint, pname: GLenum, result: &mut [GLint]) { + assert!(!result.is_empty()); + self.ffi_gl_ + .GetProgramiv(program, pname, result.as_mut_ptr()); + } + + fn get_program_binary(&self, program: GLuint) -> (Vec<u8>, GLenum) { + let mut len = [0]; + unsafe { + self.get_program_iv(program, ffi::PROGRAM_BINARY_LENGTH, &mut len); + } + if len[0] <= 0 { + return (Vec::new(), NONE); + } + let mut binary: Vec<u8> = Vec::with_capacity(len[0] as usize); + let mut format = NONE; + let mut out_len = 0; + unsafe { + binary.set_len(len[0] as usize); + self.ffi_gl_.GetProgramBinary( + program, + len[0], + &mut out_len as *mut GLsizei, + &mut format, + binary.as_mut_ptr() as *mut c_void, + ); + } + if len[0] != out_len { + return (Vec::new(), NONE); + } + + (binary, format) + } + + fn program_binary(&self, program: GLuint, format: GLenum, binary: &[u8]) { + unsafe { + self.ffi_gl_.ProgramBinary( + program, + format, + binary.as_ptr() as *const c_void, + binary.len() as GLsizei, + ); + } + } + + fn program_parameter_i(&self, program: GLuint, pname: GLenum, value: GLint) { + unsafe { + self.ffi_gl_.ProgramParameteri(program, pname, value); + } + } + + #[inline] + unsafe fn get_vertex_attrib_iv(&self, index: GLuint, pname: GLenum, result: &mut [GLint]) { + assert!(!result.is_empty()); + self.ffi_gl_ + .GetVertexAttribiv(index, pname, result.as_mut_ptr()); + } + + #[inline] + unsafe fn get_vertex_attrib_fv(&self, index: GLuint, pname: GLenum, result: &mut [GLfloat]) { + assert!(!result.is_empty()); + self.ffi_gl_ + .GetVertexAttribfv(index, pname, result.as_mut_ptr()); + } + + fn get_vertex_attrib_pointer_v(&self, index: GLuint, pname: GLenum) -> GLsizeiptr { + let mut result = 0 as *mut GLvoid; + unsafe { + self.ffi_gl_ + .GetVertexAttribPointerv(index, pname, &mut result) + } + result as GLsizeiptr + } + + fn get_buffer_parameter_iv(&self, target: GLuint, pname: GLenum) -> GLint { + let mut result = 0 as GLint; + unsafe { + self.ffi_gl_ + .GetBufferParameteriv(target, pname, &mut result); + } + result + } + + fn get_shader_info_log(&self, shader: GLuint) -> String { + let mut max_len = [0]; + unsafe { + self.get_shader_iv(shader, ffi::INFO_LOG_LENGTH, &mut max_len); + } + if max_len[0] == 0 { + return String::new(); + } + let mut result = vec![0u8; max_len[0] as usize]; + let mut result_len = 0 as GLsizei; + unsafe { + self.ffi_gl_.GetShaderInfoLog( + shader, + max_len[0] as GLsizei, + &mut result_len, + result.as_mut_ptr() as *mut GLchar, + ); + } + result.truncate(if result_len > 0 { + result_len as usize + } else { + 0 + }); + String::from_utf8(result).unwrap() + } + + fn get_string(&self, which: GLenum) -> String { + unsafe { + let llstr = self.ffi_gl_.GetString(which); + if !llstr.is_null() { + return str::from_utf8_unchecked(CStr::from_ptr(llstr as *const c_char).to_bytes()) + .to_string(); + } else { + return "".to_string(); + } + } + } + + fn get_string_i(&self, which: GLenum, index: GLuint) -> String { + unsafe { + let llstr = self.ffi_gl_.GetStringi(which, index); + if !llstr.is_null() { + str::from_utf8_unchecked(CStr::from_ptr(llstr as *const c_char).to_bytes()) + .to_string() + } else { + "".to_string() + } + } + } + + unsafe fn get_shader_iv(&self, shader: GLuint, pname: GLenum, result: &mut [GLint]) { + assert!(!result.is_empty()); + self.ffi_gl_.GetShaderiv(shader, pname, result.as_mut_ptr()); + } + + fn get_shader_precision_format( + &self, + shader_type: GLuint, + precision_type: GLuint, + ) -> (GLint, GLint, GLint) { + let (mut range, mut precision) = match precision_type { + // These values are for a 32-bit twos-complement integer format. + ffi::LOW_INT | ffi::MEDIUM_INT | ffi::HIGH_INT => ([31, 30], 0), + + // These values are for an IEEE single-precision floating-point format. + ffi::LOW_FLOAT | ffi::MEDIUM_FLOAT | ffi::HIGH_FLOAT => ([127, 127], 23), + + _ => unreachable!("invalid precision"), + }; + // This function is sometimes defined even though it's really just + // a stub, so we need to set range and precision as if it weren't + // defined before calling it. Suppress any error that might occur. + unsafe { + self.ffi_gl_.GetShaderPrecisionFormat( + shader_type, + precision_type, + range.as_mut_ptr(), + &mut precision, + ); + let _ = self.ffi_gl_.GetError(); + } + + (range[0], range[1], precision) + } + + fn compile_shader(&self, shader: GLuint) { + unsafe { + self.ffi_gl_.CompileShader(shader); + } + } + + fn create_program(&self) -> GLuint { + unsafe { + return self.ffi_gl_.CreateProgram(); + } + } + + fn delete_program(&self, program: GLuint) { + unsafe { + self.ffi_gl_.DeleteProgram(program); + } + } + + fn create_shader(&self, shader_type: GLenum) -> GLuint { + unsafe { + return self.ffi_gl_.CreateShader(shader_type); + } + } + + fn delete_shader(&self, shader: GLuint) { + unsafe { + self.ffi_gl_.DeleteShader(shader); + } + } + + fn detach_shader(&self, program: GLuint, shader: GLuint) { + unsafe { + self.ffi_gl_.DetachShader(program, shader); + } + } + + fn link_program(&self, program: GLuint) { + unsafe { + return self.ffi_gl_.LinkProgram(program); + } + } + + fn clear_color(&self, r: f32, g: f32, b: f32, a: f32) { + unsafe { + self.ffi_gl_.ClearColor(r, g, b, a); + } + } + + fn clear(&self, buffer_mask: GLbitfield) { + unsafe { + self.ffi_gl_.Clear(buffer_mask); + } + } + + fn clear_depth(&self, depth: f64) { + unsafe { + self.ffi_gl_.ClearDepthf(depth as GLclampf); + } + } + + fn clear_stencil(&self, s: GLint) { + unsafe { + self.ffi_gl_.ClearStencil(s); + } + } + + fn flush(&self) { + unsafe { + self.ffi_gl_.Flush(); + } + } + + fn finish(&self) { + unsafe { + self.ffi_gl_.Finish(); + } + } + + fn get_error(&self) -> GLenum { + unsafe { self.ffi_gl_.GetError() } + } + + fn stencil_mask(&self, mask: GLuint) { + unsafe { self.ffi_gl_.StencilMask(mask) } + } + + fn stencil_mask_separate(&self, face: GLenum, mask: GLuint) { + unsafe { self.ffi_gl_.StencilMaskSeparate(face, mask) } + } + + fn stencil_func(&self, func: GLenum, ref_: GLint, mask: GLuint) { + unsafe { self.ffi_gl_.StencilFunc(func, ref_, mask) } + } + + fn stencil_func_separate(&self, face: GLenum, func: GLenum, ref_: GLint, mask: GLuint) { + unsafe { self.ffi_gl_.StencilFuncSeparate(face, func, ref_, mask) } + } + + fn stencil_op(&self, sfail: GLenum, dpfail: GLenum, dppass: GLenum) { + unsafe { self.ffi_gl_.StencilOp(sfail, dpfail, dppass) } + } + + fn stencil_op_separate(&self, face: GLenum, sfail: GLenum, dpfail: GLenum, dppass: GLenum) { + unsafe { self.ffi_gl_.StencilOpSeparate(face, sfail, dpfail, dppass) } + } + + fn egl_image_target_texture2d_oes(&self, target: GLenum, image: GLeglImageOES) { + unsafe { + self.ffi_gl_.EGLImageTargetTexture2DOES(target, image); + } + } + + fn egl_image_target_renderbuffer_storage_oes(&self, target: GLenum, image: GLeglImageOES) { + unsafe { + self.ffi_gl_.EGLImageTargetRenderbufferStorageOES(target, image); + } + } + + fn generate_mipmap(&self, target: GLenum) { + unsafe { self.ffi_gl_.GenerateMipmap(target) } + } + + fn insert_event_marker_ext(&self, message: &str) { + if self.ffi_gl_.InsertEventMarkerEXT.is_loaded() { + unsafe { + self.ffi_gl_ + .InsertEventMarkerEXT(message.len() as GLsizei, message.as_ptr() as *const _); + } + } + } + + fn push_group_marker_ext(&self, message: &str) { + if self.ffi_gl_.PushGroupMarkerEXT.is_loaded() { + unsafe { + self.ffi_gl_ + .PushGroupMarkerEXT(message.len() as GLsizei, message.as_ptr() as *const _); + } + } + } + + fn pop_group_marker_ext(&self) { + if self.ffi_gl_.PopGroupMarkerEXT.is_loaded() { + unsafe { + self.ffi_gl_.PopGroupMarkerEXT(); + } + } + } + + fn debug_message_insert_khr(&self, source: GLenum, type_: GLenum, id: GLuint, severity: GLenum, message: &str) { + if self.ffi_gl_.DebugMessageInsertKHR.is_loaded() { + unsafe { + self.ffi_gl_ + .DebugMessageInsertKHR(source, type_, id, severity, message.len() as GLsizei, message.as_ptr() as *const _); + } + } + } + + fn push_debug_group_khr(&self, source: GLenum, id: GLuint, message: &str) { + if self.ffi_gl_.PushDebugGroupKHR.is_loaded() { + unsafe { + self.ffi_gl_ + .PushDebugGroupKHR(source, id, message.len() as GLsizei, message.as_ptr() as *const _); + } + } + } + + fn pop_debug_group_khr(&self) { + if self.ffi_gl_.PopDebugGroupKHR.is_loaded() { + unsafe { + self.ffi_gl_.PopDebugGroupKHR(); + } + } + } + + fn fence_sync(&self, condition: GLenum, flags: GLbitfield) -> GLsync { + unsafe { self.ffi_gl_.FenceSync(condition, flags) as *const _ } + } + + fn client_wait_sync(&self, sync: GLsync, flags: GLbitfield, timeout: GLuint64) -> GLenum { + unsafe { + self.ffi_gl_ + .ClientWaitSync(sync as *const _, flags, timeout) + } + } + + fn wait_sync(&self, sync: GLsync, flags: GLbitfield, timeout: GLuint64) { + unsafe { + self.ffi_gl_.WaitSync(sync as *const _, flags, timeout); + } + } + + fn delete_sync(&self, sync: GLsync) { + unsafe { + self.ffi_gl_.DeleteSync(sync as *const _); + } + } + + fn texture_range_apple(&self, _target: GLenum, _data: &[u8]) { + panic!("not supported") + } + + fn gen_fences_apple(&self, _n: GLsizei) -> Vec<GLuint> { + panic!("not supported") + } + + fn delete_fences_apple(&self, _fences: &[GLuint]) { + panic!("not supported") + } + + fn set_fence_apple(&self, _fence: GLuint) { + panic!("not supported") + } + + fn finish_fence_apple(&self, _fence: GLuint) { + panic!("not supported") + } + + fn test_fence_apple(&self, _fence: GLuint) { + panic!("not supported") + } + + fn test_object_apple(&self, _object: GLenum, _name: GLuint) -> GLboolean { + panic!("not supported") + } + + fn finish_object_apple(&self, _object: GLenum, _name: GLuint) { + panic!("not supported") + } + + + + // GL_ARB_blend_func_extended + fn bind_frag_data_location_indexed( + &self, + _program: GLuint, + _color_number: GLuint, + _index: GLuint, + _name: &str, + ) { + panic!("not supported"); + } + + fn get_frag_data_index(&self, _program: GLuint, _name: &str) -> GLint { + panic!("not supported"); + } + + // GL_KHR_debug + fn get_debug_messages(&self) -> Vec<DebugMessage> { + if !self.ffi_gl_.GetDebugMessageLog.is_loaded() { + return Vec::new(); + } + + let mut max_message_len = 0; + unsafe { + self.ffi_gl_ + .GetIntegerv(ffi::MAX_DEBUG_MESSAGE_LENGTH, &mut max_message_len) + } + + let mut output = Vec::new(); + const CAPACITY: usize = 4; + + let mut msg_data = vec![0u8; CAPACITY * max_message_len as usize]; + let mut sources = [0 as GLenum; CAPACITY]; + let mut types = [0 as GLenum; CAPACITY]; + let mut severities = [0 as GLenum; CAPACITY]; + let mut ids = [0 as GLuint; CAPACITY]; + let mut lengths = [0 as GLsizei; CAPACITY]; + + loop { + let count = unsafe { + self.ffi_gl_.GetDebugMessageLog( + CAPACITY as _, + msg_data.len() as _, + sources.as_mut_ptr(), + types.as_mut_ptr(), + ids.as_mut_ptr(), + severities.as_mut_ptr(), + lengths.as_mut_ptr(), + msg_data.as_mut_ptr() as *mut _, + ) + }; + + let mut offset = 0; + output.extend((0..count as usize).map(|i| { + let len = lengths[i] as usize; + let slice = &msg_data[offset..offset + len]; + offset += len; + DebugMessage { + message: String::from_utf8_lossy(slice).to_string(), + source: sources[i], + ty: types[i], + id: ids[i], + severity: severities[i], + } + })); + + if (count as usize) < CAPACITY { + return output; + } + } + } + + fn provoking_vertex_angle(&self, mode: GLenum) { + unsafe { + self.ffi_gl_.ProvokingVertexANGLE(mode); + } + } + + // GL_KHR_blend_equation_advanced + fn blend_barrier_khr(&self) { + if self.ffi_gl_.BlendBarrierKHR.is_loaded() { + unsafe { + self.ffi_gl_.BlendBarrierKHR(); + } + } + } + + // GL_CHROMIUM_copy_texture + fn copy_texture_chromium(&self, + source_id: GLuint, source_level: GLint, + dest_target: GLenum, dest_id: GLuint, dest_level: GLint, + internal_format: GLint, dest_type: GLenum, + unpack_flip_y: GLboolean, unpack_premultiply_alpha: GLboolean, unpack_unmultiply_alpha: GLboolean) + { + unsafe { + self.ffi_gl_.CopyTextureCHROMIUM(source_id, source_level, dest_target, dest_id, dest_level, + internal_format, dest_type, + unpack_flip_y, unpack_premultiply_alpha, unpack_unmultiply_alpha, + ); + } + } + fn copy_sub_texture_chromium(&self, + source_id: GLuint, source_level: GLint, + dest_target: GLenum, dest_id: GLuint, dest_level: GLint, + x_offset: GLint, y_offset: GLint, x: GLint, y: GLint, width: GLsizei, height: GLsizei, + unpack_flip_y: GLboolean, unpack_premultiply_alpha: GLboolean, unpack_unmultiply_alpha: GLboolean) + { + unsafe { + self.ffi_gl_.CopySubTextureCHROMIUM(source_id, source_level, dest_target, dest_id, dest_level, + x_offset, y_offset, x, y, width, height, + unpack_flip_y, unpack_premultiply_alpha, unpack_unmultiply_alpha, + ); + } + } + + // GL_ANGLE_copy_texture_3d + fn copy_texture_3d_angle( + &self, + source_id: GLuint, + source_level: GLint, + dest_target: GLenum, + dest_id: GLuint, + dest_level: GLint, + internal_format: GLint, + dest_type: GLenum, + unpack_flip_y: GLboolean, + unpack_premultiply_alpha: GLboolean, + unpack_unmultiply_alpha: GLboolean, + ) { + unsafe { + self.ffi_gl_.CopyTexture3DANGLE( + source_id, + source_level, + dest_target, + dest_id, + dest_level, + internal_format, + dest_type, + unpack_flip_y, + unpack_premultiply_alpha, + unpack_unmultiply_alpha, + ); + } + } + + fn copy_sub_texture_3d_angle( + &self, + source_id: GLuint, + source_level: GLint, + dest_target: GLenum, + dest_id: GLuint, + dest_level: GLint, + x_offset: GLint, + y_offset: GLint, + z_offset: GLint, + x: GLint, + y: GLint, + z: GLint, + width: GLsizei, + height: GLsizei, + depth: GLsizei, + unpack_flip_y: GLboolean, + unpack_premultiply_alpha: GLboolean, + unpack_unmultiply_alpha: GLboolean, + ) { + unsafe { + self.ffi_gl_.CopySubTexture3DANGLE( + source_id, + source_level, + dest_target, + dest_id, + dest_level, + x_offset, + y_offset, + z_offset, + x, + y, + z, + width, + height, + depth, + unpack_flip_y, + unpack_premultiply_alpha, + unpack_unmultiply_alpha, + ); + } + } + + fn buffer_storage( + &self, + target: GLenum, + size: GLsizeiptr, + data: *const GLvoid, + flags: GLbitfield, + ) { + unsafe { + self.ffi_gl_.BufferStorageEXT(target, size, data, flags); + } + } + + fn flush_mapped_buffer_range(&self, target: GLenum, offset: GLintptr, length: GLsizeiptr) { + unsafe { + self.ffi_gl_.FlushMappedBufferRange(target, offset, length); + } + } + + fn start_tiling_qcom(&self, x: GLuint, y: GLuint, width: GLuint, height: GLuint, preserve_mask: GLbitfield) { + unsafe { + self.ffi_gl_.StartTilingQCOM(x, y, width, height, preserve_mask); + } + } + + fn end_tiling_qcom(&self, preserve_mask: GLbitfield) { + unsafe { + self.ffi_gl_.EndTilingQCOM(preserve_mask); + } + } +} |