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native.rs
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native.rs
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use super::*;
use std::collections::HashSet;
use std::ffi::CString;
use crate::gl46 as native_gl;
use crate::version::Version;
#[derive(Default)]
struct Constants {
max_label_length: i32,
}
pub struct Context {
raw: native_gl::GlFns,
extensions: HashSet<String>,
constants: Constants,
}
impl Context {
pub unsafe fn from_loader_function<F>(mut loader_function: F) -> Self
where
F: FnMut(&str) -> *const std::os::raw::c_void,
{
// Note(Lokathor): This is wildly inefficient, because the loader_function
// is doubtlessly just going to allocate the `&str` we pass into a new `CString`
// so that it can pass that `*const c_char` off to the OS's actual loader.
// However, this is the best we can do without changing the outer function
// signature into something that's less alloc crazy.
let raw: native_gl::GlFns =
native_gl::GlFns::load_with(|p: *const std::os::raw::c_char| {
let c_str = std::ffi::CStr::from_ptr(p);
loader_function(c_str.to_str().unwrap()) as *mut std::os::raw::c_void
});
// Setup extensions and constants after the context has been built
let mut context = Self {
raw,
extensions: HashSet::new(),
constants: Constants::default(),
};
let raw_version = context.get_parameter_string(VERSION);
let version = Version::parse(&raw_version).unwrap();
// Use core-only functions to populate extension list
if (version >= Version::new(3, 0, None, String::from("")))
|| (version >= Version::new_embedded(3, 0, String::from("")))
{
let num_extensions = context.get_parameter_i32(NUM_EXTENSIONS);
for i in 0..num_extensions {
let extension_name = context.get_parameter_indexed_string(EXTENSIONS, i as u32);
context.extensions.insert(extension_name);
}
} else {
// Fallback
context.extensions.extend(
context
.get_parameter_string(EXTENSIONS)
.split(' ')
.map(|s| s.to_string()),
);
};
// After the extensions are known, we can populate constants (including
// constants that depend on extensions being enabled)
context.constants.max_label_length = if context.supports_debug() {
context.get_parameter_i32(MAX_LABEL_LENGTH)
} else {
0
};
context
}
}
impl std::fmt::Debug for Context {
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
write!(f, "Native_GL_Context")
}
}
impl HasContext for Context {
type Shader = native_gl::GLuint;
type Program = native_gl::GLuint;
type Buffer = native_gl::GLuint;
type VertexArray = native_gl::GLuint;
type Texture = native_gl::GLuint;
type Sampler = native_gl::GLuint;
type Fence = native_gl::GLsync;
type Framebuffer = native_gl::GLuint;
type Renderbuffer = native_gl::GLuint;
type Query = native_gl::GLuint;
type UniformLocation = native_gl::GLuint;
type TransformFeedback = native_gl::GLuint;
fn supported_extensions(&self) -> &HashSet<String> {
&self.extensions
}
fn supports_debug(&self) -> bool {
self.extensions.contains("GL_KHR_debug")
}
unsafe fn create_framebuffer(&self) -> Result<Self::Framebuffer, String> {
let gl = &self.raw;
let mut name = 0;
gl.GenFramebuffers(1, &mut name);
Ok(name)
}
unsafe fn is_framebuffer(&self, framebuffer: Self::Framebuffer) -> bool {
let gl = &self.raw;
gl.IsFramebuffer(framebuffer) != 0
}
unsafe fn create_query(&self) -> Result<Self::Query, String> {
let gl = &self.raw;
let mut name = 0;
gl.GenQueries(1, &mut name);
Ok(name)
}
unsafe fn create_renderbuffer(&self) -> Result<Self::Renderbuffer, String> {
let gl = &self.raw;
let mut name = 0;
gl.GenRenderbuffers(1, &mut name);
Ok(name)
}
unsafe fn is_renderbuffer(&self, renderbuffer: Self::Renderbuffer) -> bool {
let gl = &self.raw;
gl.IsRenderbuffer(renderbuffer) != 0
}
unsafe fn create_sampler(&self) -> Result<Self::Sampler, String> {
let gl = &self.raw;
let mut name = 0;
gl.GenSamplers(1, &mut name);
Ok(name)
}
unsafe fn create_shader(&self, shader_type: u32) -> Result<Self::Shader, String> {
let gl = &self.raw;
Ok(gl.CreateShader(shader_type as u32))
}
unsafe fn is_shader(&self, shader: Self::Shader) -> bool {
let gl = &self.raw;
gl.IsShader(shader) != 0
}
unsafe fn create_texture(&self) -> Result<Self::Texture, String> {
let gl = &self.raw;
let mut name = 0;
gl.GenTextures(1, &mut name);
Ok(name)
}
unsafe fn is_texture(&self, texture: Self::Texture) -> bool {
let gl = &self.raw;
gl.IsTexture(texture) != 0
}
unsafe fn delete_shader(&self, shader: Self::Shader) {
let gl = &self.raw;
gl.DeleteShader(shader);
}
unsafe fn shader_source(&self, shader: Self::Shader, source: &str) {
let gl = &self.raw;
gl.ShaderSource(
shader,
1,
&(source.as_ptr() as *const native_gl::GLchar),
&(source.len() as native_gl::GLint),
);
}
unsafe fn compile_shader(&self, shader: Self::Shader) {
let gl = &self.raw;
gl.CompileShader(shader);
}
unsafe fn get_shader_compile_status(&self, shader: Self::Shader) -> bool {
let gl = &self.raw;
let mut status = 0;
gl.GetShaderiv(shader, COMPILE_STATUS, &mut status);
1 == status
}
unsafe fn get_shader_info_log(&self, shader: Self::Shader) -> String {
let gl = &self.raw;
let mut length = 0;
gl.GetShaderiv(shader, INFO_LOG_LENGTH, &mut length);
if length > 0 {
let mut log = String::with_capacity(length as usize);
log.extend(std::iter::repeat('\0').take(length as usize));
gl.GetShaderInfoLog(
shader,
length,
&mut length,
(&log[..]).as_ptr() as *mut native_gl::GLchar,
);
log.truncate(length as usize);
log
} else {
String::from("")
}
}
unsafe fn get_tex_image(
&self,
target: u32,
level: i32,
format: u32,
ty: u32,
pixels: PixelPackData,
) {
let gl = &self.raw;
gl.GetTexImage(
target,
level,
format,
ty,
match pixels {
PixelPackData::BufferOffset(offset) => offset as *mut std::ffi::c_void,
PixelPackData::Slice(data) => data.as_mut_ptr() as *mut std::ffi::c_void,
},
);
}
unsafe fn create_program(&self) -> Result<Self::Program, String> {
let gl = &self.raw;
Ok(gl.CreateProgram())
}
unsafe fn is_program(&self, program: Self::Program) -> bool {
let gl = &self.raw;
gl.IsProgram(program) != 0
}
unsafe fn delete_program(&self, program: Self::Program) {
let gl = &self.raw;
gl.DeleteProgram(program);
}
unsafe fn attach_shader(&self, program: Self::Program, shader: Self::Shader) {
let gl = &self.raw;
gl.AttachShader(program, shader);
}
unsafe fn detach_shader(&self, program: Self::Program, shader: Self::Shader) {
let gl = &self.raw;
gl.DetachShader(program, shader);
}
unsafe fn link_program(&self, program: Self::Program) {
let gl = &self.raw;
gl.LinkProgram(program);
}
unsafe fn get_program_link_status(&self, program: Self::Program) -> bool {
let gl = &self.raw;
let mut status = 0;
gl.GetProgramiv(program, LINK_STATUS, &mut status);
1 == status
}
unsafe fn get_program_info_log(&self, program: Self::Program) -> String {
let gl = &self.raw;
let mut length = 0;
gl.GetProgramiv(program, INFO_LOG_LENGTH, &mut length);
if length > 0 {
let mut log = String::with_capacity(length as usize);
log.extend(std::iter::repeat('\0').take(length as usize));
gl.GetProgramInfoLog(
program,
length,
&mut length,
(&log[..]).as_ptr() as *mut native_gl::GLchar,
);
log.truncate(length as usize);
log
} else {
String::from("")
}
}
unsafe fn get_active_uniforms(&self, program: Self::Program) -> u32 {
let gl = &self.raw;
let mut count = 0;
gl.GetProgramiv(program, ACTIVE_UNIFORMS, &mut count);
count as u32
}
unsafe fn get_active_uniform(
&self,
program: Self::Program,
index: u32,
) -> Option<ActiveUniform> {
let gl = &self.raw;
let mut uniform_max_size = 0;
gl.GetProgramiv(program, ACTIVE_UNIFORM_MAX_LENGTH, &mut uniform_max_size);
let mut name = String::with_capacity(uniform_max_size as usize);
name.extend(std::iter::repeat('\0').take(uniform_max_size as usize));
let mut length = 0;
let mut size = 0;
let mut utype = 0;
gl.GetActiveUniform(
program,
index,
uniform_max_size,
&mut length,
&mut size,
&mut utype,
name.as_ptr() as *mut native_gl::GLchar,
);
name.truncate(length as usize);
Some(ActiveUniform { size, utype, name })
}
unsafe fn use_program(&self, program: Option<Self::Program>) {
let gl = &self.raw;
gl.UseProgram(program.unwrap_or(0));
}
unsafe fn create_buffer(&self) -> Result<Self::Buffer, String> {
let gl = &self.raw;
let mut buffer = 0;
gl.GenBuffers(1, &mut buffer);
Ok(buffer)
}
unsafe fn is_buffer(&self, buffer: Self::Buffer) -> bool {
let gl = &self.raw;
gl.IsBuffer(buffer) != 0
}
unsafe fn bind_buffer(&self, target: u32, buffer: Option<Self::Buffer>) {
let gl = &self.raw;
gl.BindBuffer(target, buffer.unwrap_or(0));
}
unsafe fn bind_buffer_base(&self, target: u32, index: u32, buffer: Option<Self::Buffer>) {
let gl = &self.raw;
gl.BindBufferBase(target, index, buffer.unwrap_or(0));
}
unsafe fn bind_buffer_range(
&self,
target: u32,
index: u32,
buffer: Option<Self::Buffer>,
offset: i32,
size: i32,
) {
let gl = &self.raw;
gl.BindBufferRange(
target,
index,
buffer.unwrap_or(0),
offset as isize,
size as isize,
);
}
unsafe fn bind_vertex_buffer(
&self,
binding_index: u32,
buffer: Option<Buffer>,
offset: i32,
stride: i32,
) {
let gl = &self.raw;
gl.BindVertexBuffer(binding_index, buffer.unwrap_or(0), offset as isize, stride);
}
unsafe fn bind_framebuffer(&self, target: u32, framebuffer: Option<Self::Framebuffer>) {
let gl = &self.raw;
gl.BindFramebuffer(target, framebuffer.unwrap_or(0));
}
unsafe fn bind_renderbuffer(&self, target: u32, renderbuffer: Option<Self::Renderbuffer>) {
let gl = &self.raw;
gl.BindRenderbuffer(target, renderbuffer.unwrap_or(0));
}
unsafe fn blit_framebuffer(
&self,
src_x0: i32,
src_y0: i32,
src_x1: i32,
src_y1: i32,
dst_x0: i32,
dst_y0: i32,
dst_x1: i32,
dst_y1: i32,
mask: u32,
filter: u32,
) {
let gl = &self.raw;
gl.BlitFramebuffer(
src_x0, src_y0, src_x1, src_y1, dst_x0, dst_y0, dst_x1, dst_y1, mask, filter,
);
}
unsafe fn create_vertex_array(&self) -> Result<Self::VertexArray, String> {
let gl = &self.raw;
let mut vertex_array = 0;
gl.GenVertexArrays(1, &mut vertex_array);
Ok(vertex_array)
}
unsafe fn delete_vertex_array(&self, vertex_array: Self::VertexArray) {
let gl = &self.raw;
gl.DeleteVertexArrays(1, &vertex_array);
}
unsafe fn bind_vertex_array(&self, vertex_array: Option<Self::VertexArray>) {
let gl = &self.raw;
gl.BindVertexArray(vertex_array.unwrap_or(0));
}
unsafe fn clear_color(&self, red: f32, green: f32, blue: f32, alpha: f32) {
let gl = &self.raw;
gl.ClearColor(red, green, blue, alpha);
}
unsafe fn supports_f64_precision() -> bool {
// TODO: Handle OpenGL ES
true
}
unsafe fn clear_depth_f64(&self, depth: f64) {
let gl = &self.raw;
gl.ClearDepth(depth);
}
unsafe fn clear_depth_f32(&self, depth: f32) {
let gl = &self.raw;
gl.ClearDepthf(depth);
}
unsafe fn clear_stencil(&self, stencil: i32) {
let gl = &self.raw;
gl.ClearStencil(stencil);
}
unsafe fn clear(&self, mask: u32) {
let gl = &self.raw;
gl.Clear(mask);
}
unsafe fn patch_parameter_i32(&self, parameter: u32, value: i32) {
let gl = &self.raw;
gl.PatchParameteri(parameter, value);
}
unsafe fn pixel_store_i32(&self, parameter: u32, value: i32) {
let gl = &self.raw;
gl.PixelStorei(parameter, value);
}
unsafe fn pixel_store_bool(&self, parameter: u32, value: bool) {
let gl = &self.raw;
gl.PixelStorei(parameter, value as i32);
}
unsafe fn bind_frag_data_location(
&self,
program: Self::Program,
color_number: u32,
name: &str,
) {
let gl = &self.raw;
gl.BindFragDataLocation(
program,
color_number,
name.as_ptr() as *const native_gl::GLchar,
);
}
unsafe fn buffer_data_size(&self, target: u32, size: i32, usage: u32) {
let gl = &self.raw;
gl.BufferData(target, size as isize, std::ptr::null(), usage);
}
unsafe fn buffer_data_u8_slice(&self, target: u32, data: &[u8], usage: u32) {
let gl = &self.raw;
gl.BufferData(
target,
data.len() as isize,
data.as_ptr() as *const std::ffi::c_void,
usage,
);
}
unsafe fn buffer_sub_data_u8_slice(&self, target: u32, offset: i32, src_data: &[u8]) {
let gl = &self.raw;
gl.BufferSubData(
target,
offset as isize,
src_data.len() as isize,
src_data.as_ptr() as *const std::ffi::c_void,
);
}
unsafe fn get_buffer_sub_data(&self, target: u32, offset: i32, dst_data: &mut [u8]) {
let gl = &self.raw;
gl.GetBufferSubData(
target,
offset as isize,
dst_data.len() as isize,
dst_data.as_mut_ptr() as *mut std::ffi::c_void,
);
}
unsafe fn buffer_storage(&self, target: u32, size: i32, data: Option<&[u8]>, flags: u32) {
let gl = &self.raw;
let size = size as isize;
let data = data.map(|p| p.as_ptr()).unwrap_or(std::ptr::null()) as *const std::ffi::c_void;
if gl.BufferStorage_is_loaded() {
gl.BufferStorage(target, size, data, flags);
} else {
gl.BufferStorageEXT(target, size, data, flags);
}
}
unsafe fn check_framebuffer_status(&self, target: u32) -> u32 {
let gl = &self.raw;
gl.CheckFramebufferStatus(target)
}
unsafe fn clear_buffer_i32_slice(&self, target: u32, draw_buffer: u32, values: &[i32]) {
let gl = &self.raw;
gl.ClearBufferiv(target, draw_buffer as i32, values.as_ptr());
}
unsafe fn clear_buffer_u32_slice(&self, target: u32, draw_buffer: u32, values: &[u32]) {
let gl = &self.raw;
gl.ClearBufferuiv(target, draw_buffer as i32, values.as_ptr());
}
unsafe fn clear_buffer_f32_slice(&self, target: u32, draw_buffer: u32, values: &[f32]) {
let gl = &self.raw;
gl.ClearBufferfv(target, draw_buffer as i32, values.as_ptr());
}
unsafe fn clear_buffer_depth_stencil(
&self,
target: u32,
draw_buffer: u32,
depth: f32,
stencil: i32,
) {
let gl = &self.raw;
gl.ClearBufferfi(target, draw_buffer as i32, depth, stencil);
}
unsafe fn client_wait_sync(&self, fence: Self::Fence, flags: u32, timeout: i32) -> u32 {
let gl = &self.raw;
gl.ClientWaitSync(fence, flags, timeout as u64)
}
unsafe fn wait_sync(&self, fence: Self::Fence, flags: u32, timeout: u64) {
let gl = &self.raw;
gl.WaitSync(fence, flags, timeout)
}
unsafe fn copy_buffer_sub_data(
&self,
src_target: u32,
dst_target: u32,
src_offset: i32,
dst_offset: i32,
size: i32,
) {
let gl = &self.raw;
gl.CopyBufferSubData(
src_target,
dst_target,
src_offset as isize,
dst_offset as isize,
size as isize,
);
}
unsafe fn copy_tex_image_2d(
&self,
target: u32,
level: i32,
internal_format: u32,
x: i32,
y: i32,
width: i32,
height: i32,
border: i32,
) {
let gl = &self.raw;
gl.CopyTexImage2D(target, level, internal_format, x, y, width, height, border);
}
unsafe fn copy_tex_sub_image_2d(
&self,
target: u32,
level: i32,
x_offset: i32,
y_offset: i32,
x: i32,
y: i32,
width: i32,
height: i32,
) {
let gl = &self.raw;
gl.CopyTexSubImage2D(target, level, x_offset, y_offset, x, y, width, height);
}
unsafe fn copy_tex_sub_image_3d(
&self,
target: u32,
level: i32,
x_offset: i32,
y_offset: i32,
z_offset: i32,
x: i32,
y: i32,
width: i32,
height: i32,
) {
let gl = &self.raw;
gl.CopyTexSubImage3D(
target, level, x_offset, y_offset, z_offset, x, y, width, height,
);
}
unsafe fn delete_buffer(&self, buffer: Self::Buffer) {
let gl = &self.raw;
gl.DeleteBuffers(1, &buffer);
}
unsafe fn delete_framebuffer(&self, framebuffer: Self::Framebuffer) {
let gl = &self.raw;
gl.DeleteFramebuffers(1, &framebuffer);
}
unsafe fn delete_query(&self, query: Self::Query) {
let gl = &self.raw;
gl.DeleteQueries(1, &query);
}
unsafe fn delete_renderbuffer(&self, renderbuffer: Self::Renderbuffer) {
let gl = &self.raw;
gl.DeleteRenderbuffers(1, &renderbuffer);
}
unsafe fn delete_sampler(&self, sampler: Self::Sampler) {
let gl = &self.raw;
gl.DeleteSamplers(1, &sampler);
}
unsafe fn delete_sync(&self, fence: Self::Fence) {
let gl = &self.raw;
gl.DeleteSync(fence);
}
unsafe fn delete_texture(&self, texture: Self::Texture) {
let gl = &self.raw;
gl.DeleteTextures(1, &texture);
}
unsafe fn disable(&self, parameter: u32) {
let gl = &self.raw;
gl.Disable(parameter);
}
unsafe fn disable_draw_buffer(&self, parameter: u32, draw_buffer: u32) {
let gl = &self.raw;
gl.Disablei(parameter, draw_buffer);
}
unsafe fn disable_vertex_attrib_array(&self, index: u32) {
let gl = &self.raw;
gl.DisableVertexAttribArray(index);
}
unsafe fn dispatch_compute(&self, groups_x: u32, groups_y: u32, groups_z: u32) {
let gl = &self.raw;
gl.DispatchCompute(groups_x, groups_y, groups_z);
}
unsafe fn dispatch_compute_indirect(&self, offset: i32) {
let gl = &self.raw;
gl.DispatchComputeIndirect(offset as isize);
}
unsafe fn draw_arrays(&self, mode: u32, first: i32, count: i32) {
let gl = &self.raw;
gl.DrawArrays(mode as u32, first, count);
}
unsafe fn draw_arrays_instanced(&self, mode: u32, first: i32, count: i32, instance_count: i32) {
let gl = &self.raw;
gl.DrawArraysInstanced(mode as u32, first, count, instance_count);
}
unsafe fn draw_arrays_instanced_base_instance(
&self,
mode: u32,
first: i32,
count: i32,
instance_count: i32,
base_instance: u32,
) {
let gl = &self.raw;
gl.DrawArraysInstancedBaseInstance(
mode as u32,
first,
count,
instance_count,
base_instance,
);
}
unsafe fn draw_arrays_indirect_offset(&self, mode: u32, offset: i32) {
let gl = &self.raw;
gl.DrawArraysIndirect(mode, offset as *const std::ffi::c_void);
}
unsafe fn draw_buffer(&self, draw_buffer: u32) {
let gl = &self.raw;
gl.DrawBuffer(draw_buffer);
}
unsafe fn draw_buffers(&self, buffers: &[u32]) {
let gl = &self.raw;
gl.DrawBuffers(buffers.len() as i32, buffers.as_ptr());
}
unsafe fn draw_elements(&self, mode: u32, count: i32, element_type: u32, offset: i32) {
let gl = &self.raw;
gl.DrawElements(
mode as u32,
count,
element_type as u32,
offset as *const std::ffi::c_void,
);
}
unsafe fn draw_elements_base_vertex(
&self,
mode: u32,
count: i32,
element_type: u32,
offset: i32,
base_vertex: i32,
) {
let gl = &self.raw;
gl.DrawElementsBaseVertex(
mode as u32,
count,
element_type as u32,
offset as *const std::ffi::c_void,
base_vertex,
);
}
unsafe fn draw_elements_instanced(
&self,
mode: u32,
count: i32,
element_type: u32,
offset: i32,
instance_count: i32,
) {
let gl = &self.raw;
gl.DrawElementsInstanced(
mode as u32,
count,
element_type as u32,
offset as *const std::ffi::c_void,
instance_count,
);
}
unsafe fn draw_elements_instanced_base_vertex(
&self,
mode: u32,
count: i32,
element_type: u32,
offset: i32,
instance_count: i32,
base_vertex: i32,
) {
let gl = &self.raw;
gl.DrawElementsInstancedBaseVertex(
mode as u32,
count,
element_type as u32,
offset as *const std::ffi::c_void,
instance_count,
base_vertex,
);
}
unsafe fn draw_elements_instanced_base_vertex_base_instance(
&self,
mode: u32,
count: i32,
element_type: u32,
offset: i32,
instance_count: i32,
base_vertex: i32,
base_instance: u32,
) {
let gl = &self.raw;
gl.DrawElementsInstancedBaseVertexBaseInstance(
mode as u32,
count,
element_type as u32,
offset as *const std::ffi::c_void,
instance_count,
base_vertex,
base_instance,
);
}
unsafe fn draw_elements_indirect_offset(&self, mode: u32, element_type: u32, offset: i32) {
let gl = &self.raw;
gl.DrawElementsIndirect(mode, element_type, offset as *const std::ffi::c_void);
}
unsafe fn enable(&self, parameter: u32) {
let gl = &self.raw;
gl.Enable(parameter);
}
unsafe fn is_enabled(&self, parameter: u32) -> bool {
let gl = &self.raw;
gl.IsEnabled(parameter) != 0
}
unsafe fn enable_draw_buffer(&self, parameter: u32, draw_buffer: u32) {
let gl = &self.raw;
gl.Enablei(parameter, draw_buffer);
}
unsafe fn enable_vertex_attrib_array(&self, index: u32) {
let gl = &self.raw;
gl.EnableVertexAttribArray(index);
}
unsafe fn flush(&self) {
let gl = &self.raw;
gl.Flush();
}
unsafe fn framebuffer_renderbuffer(
&self,
target: u32,
attachment: u32,
renderbuffer_target: u32,
renderbuffer: Option<Self::Renderbuffer>,
) {
let gl = &self.raw;
gl.FramebufferRenderbuffer(
target,
attachment,
renderbuffer_target,
renderbuffer.unwrap_or(0),
);
}
unsafe fn framebuffer_texture(
&self,
target: u32,
attachment: u32,
texture: Option<Self::Texture>,
level: i32,
) {
let gl = &self.raw;
gl.FramebufferTexture(target, attachment, texture.unwrap_or(0), level);
}
unsafe fn framebuffer_texture_2d(
&self,
target: u32,
attachment: u32,
texture_target: u32,
texture: Option<Self::Texture>,
level: i32,
) {
let gl = &self.raw;
gl.FramebufferTexture2D(
target,
attachment,
texture_target,
texture.unwrap_or(0),
level,
);
}
unsafe fn framebuffer_texture_3d(
&self,
target: u32,
attachment: u32,
texture_target: u32,
texture: Option<Self::Texture>,
level: i32,
layer: i32,
) {
let gl = &self.raw;
gl.FramebufferTexture3D(
target,
attachment,
texture_target,
texture.unwrap_or(0),
level,
layer,
);
}
unsafe fn framebuffer_texture_layer(
&self,
target: u32,
attachment: u32,
texture: Option<Self::Texture>,
level: i32,
layer: i32,
) {
let gl = &self.raw;
gl.FramebufferTextureLayer(target, attachment, texture.unwrap_or(0), level, layer);
}
unsafe fn front_face(&self, value: u32) {
let gl = &self.raw;
gl.FrontFace(value as u32);
}
unsafe fn get_error(&self) -> u32 {
let gl = &self.raw;
gl.GetError()
}
unsafe fn get_tex_parameter_i32(&self, target: u32, parameter: u32) -> i32 {
let gl = &self.raw;
let mut value = 0;
gl.GetTexParameteriv(target, parameter, &mut value);
value
}
unsafe fn get_buffer_parameter_i32(&self, target: u32, parameter: u32) -> i32 {
let gl = &self.raw;
let mut value = 0;
gl.GetBufferParameteriv(target, parameter, &mut value);
value
}
unsafe fn get_parameter_i32(&self, parameter: u32) -> i32 {
let gl = &self.raw;
let mut value = 0;
gl.GetIntegerv(parameter, &mut value);
value
}
unsafe fn get_parameter_i32_slice(&self, parameter: u32, out: &mut [i32]) {
let gl = &self.raw;
gl.GetIntegerv(parameter, &mut out[0]);
}
unsafe fn get_parameter_f32(&self, parameter: u32) -> f32 {
let gl = &self.raw;
let mut value: f32 = 0.0;
gl.GetFloatv(parameter, &mut value);
value
}
unsafe fn get_parameter_f32_slice(&self, parameter: u32, out: &mut [f32]) {
let gl = &self.raw;
gl.GetFloatv(parameter, &mut out[0]);
}
unsafe fn get_parameter_indexed_i32(&self, parameter: u32, index: u32) -> i32 {
let gl = &self.raw;
let mut value = 0;
gl.GetIntegeri_v(parameter, index, &mut value);
value
}
unsafe fn get_parameter_indexed_string(&self, parameter: u32, index: u32) -> String {
let gl = &self.raw;
let raw_ptr = gl.GetStringi(parameter, index);
std::ffi::CStr::from_ptr(raw_ptr as *const native_gl::GLchar)
.to_str()
.unwrap()
.to_owned()
}