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// 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
// option. This file may not be copied, modified, or distributed
// except according to those terms.
pub struct GlFns {
ffi_gl_: GlFfi,
}
impl GlFns {
pub unsafe fn load_with<'a, F>(loadfn: F) -> Rc<dyn Gl>
where
F: FnMut(&str) -> *const c_void,
{
let ffi_gl_ = GlFfi::load_with(loadfn);
Rc::new(GlFns { ffi_gl_: ffi_gl_ }) as Rc<dyn Gl>
}
}
impl Gl for GlFns {
fn get_type(&self) -> GlType {
GlType::Gl
}
fn buffer_data_untyped(
&self,
target: GLenum,
size: GLsizeiptr,
data: *const GLvoid,
usage: GLenum,
) {
unsafe {
self.ffi_gl_.BufferData(target, size, data, usage);
}
}
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 {
unsafe {
return self.ffi_gl_.MapBuffer(target, access);
}
}
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);
}
fn tex_buffer(&self, target: GLenum, internal_format: GLenum, buffer: GLuint) {
unsafe {
self.ffi_gl_.TexBuffer(target, internal_format, buffer);
}
}
fn read_buffer(&self, mode: GLenum) {
unsafe {
self.ffi_gl_.ReadBuffer(mode);
}
}
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> {
let mut result = vec![0 as GLuint; n as usize];
unsafe {
self.ffi_gl_.GenVertexArraysAPPLE(n, result.as_mut_ptr())
}
result
}
fn gen_queries(&self, n: GLsizei) -> Vec<GLuint> {
let mut result = vec![0 as GLuint; n as usize];
unsafe {
self.ffi_gl_.GenQueries(n, result.as_mut_ptr());
}
result
}
fn begin_query(&self, target: GLenum, id: GLuint) {
unsafe {
self.ffi_gl_.BeginQuery(target, id);
}
}
fn end_query(&self, target: GLenum) {
unsafe {
self.ffi_gl_.EndQuery(target);
}
}
fn query_counter(&self, id: GLuint, target: GLenum) {
unsafe {
self.ffi_gl_.QueryCounter(id, target);
}
}
fn get_query_object_iv(&self, id: GLuint, pname: GLenum) -> i32 {
let mut result = 0;
unsafe {
self.ffi_gl_.GetQueryObjectiv(id, pname, &mut result);
}
result
}
fn get_query_object_uiv(&self, id: GLuint, pname: GLenum) -> u32 {
let mut result = 0;
unsafe {
self.ffi_gl_.GetQueryObjectuiv(id, pname, &mut result);
}
result
}
fn get_query_object_i64v(&self, id: GLuint, pname: GLenum) -> i64 {
let mut result = 0;
unsafe {
self.ffi_gl_.GetQueryObjecti64v(id, pname, &mut result);
}
result
}
fn get_query_object_ui64v(&self, id: GLuint, pname: GLenum) -> u64 {
let mut result = 0;
unsafe {
self.ffi_gl_.GetQueryObjectui64v(id, pname, &mut result);
}
result
}
fn delete_queries(&self, queries: &[GLuint]) {
unsafe {
self.ffi_gl_
.DeleteQueries(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]) {
unsafe {
self.ffi_gl_
.DeleteVertexArraysAPPLE(vertex_arrays.len() as GLsizei, vertex_arrays.as_ptr());
}
}
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())
}
}
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());
}
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) {
unsafe {
self.ffi_gl_.BindVertexArrayAPPLE(vao)
}
}
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,
) {
if self.ffi_gl_.TexStorage2D.is_loaded() {
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,
) {
if self.ffi_gl_.TexStorage3D.is_loaded() {
unsafe {
self.ffi_gl_
.TexStorage3D(target, levels, internal_format, width, height, depth);
}
}
}
fn get_tex_image_into_buffer(
&self,
target: GLenum,
level: GLint,
format: GLenum,
ty: GLenum,
output: &mut [u8],
) {
unsafe {
self.ffi_gl_
.GetTexImage(target, level, format, ty, output.as_mut_ptr() as *mut _);
}
}
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_.CopyImageSubData(
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]) {
if self.ffi_gl_.InvalidateFramebuffer.is_loaded() {
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,
) {
if self.ffi_gl_.InvalidateSubFramebuffer.is_loaded() {
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_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_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_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());
}
}
fn uniform_1ui(&self, location: GLint, v0: GLuint) {
unsafe {
self.ffi_gl_.Uniform1ui(location, v0);
}
}
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());
}
}
fn uniform_2ui(&self, location: GLint, v0: GLuint, v1: GLuint) {
unsafe {
self.ffi_gl_.Uniform2ui(location, v0, v1);
}
}
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());
}
}
fn uniform_3ui(&self, location: GLint, v0: GLuint, v1: GLuint, v2: GLuint) {
unsafe {
self.ffi_gl_.Uniform3ui(location, v0, v1, v2);
}
}
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());
}
}
fn uniform_4ui(&self, location: GLint, x: GLuint, y: GLuint, z: GLuint, w: GLuint) {
unsafe {
self.ffi_gl_.Uniform4ui(location, x, y, z, w);
}
}
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_.DepthRange(near as GLclampd, far as GLclampd);
}
}
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;
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()) }
}
fn get_frag_data_location(&self, program: GLuint, name: &str) -> c_int {
let name = CString::new(name).unwrap();
unsafe { self.ffi_gl_.GetFragDataLocation(program, name.as_ptr()) }
}
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) {
if !self.ffi_gl_.GetProgramBinary.is_loaded() {
return (Vec::new(), NONE);
}
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]) {
if !self.ffi_gl_.ProgramBinary.is_loaded() {
return;
}
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) {
if !self.ffi_gl_.ProgramParameteri.is_loaded() {
return;
}
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) {
// gl.GetShaderPrecisionFormat is not available until OpenGL 4.1.
// Fallback to OpenGL standard precissions that most desktop hardware support.
match precision_type {
ffi::LOW_FLOAT | ffi::MEDIUM_FLOAT | ffi::HIGH_FLOAT => {
// Fallback to IEEE 754 single precision
// Range: from -2^127 to 2^127
// Significand precision: 23 bits
(127, 127, 23)
}
ffi::LOW_INT | ffi::MEDIUM_INT | ffi::HIGH_INT => {
// Fallback to single precision integer
// Range: from -2^24 to 2^24
// Precision: For integer formats this value is always 0
(24, 24, 0)
}
_ => (0, 0, 0),
}
}
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_.ClearDepth(depth as GLclampd);
}
}
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) }
}
#[allow(unused_variables)]
fn egl_image_target_texture2d_oes(&self, target: GLenum, image: GLeglImageOES) {
panic!("not supported")
}
#[allow(unused_variables)]
fn egl_image_target_renderbuffer_storage_oes(&self, target: GLenum, image: GLeglImageOES) {
panic!("not supported")
}
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 texture_range_apple(&self, target: GLenum, data: &[u8]) {
unsafe {
self.ffi_gl_.TextureRangeAPPLE(
target,
data.len() as GLsizei,
data.as_ptr() as *const c_void,
);
}
}
fn delete_sync(&self, sync: GLsync) {
unsafe {
self.ffi_gl_.DeleteSync(sync as *const _);
}
}
fn gen_fences_apple(&self, n: GLsizei) -> Vec<GLuint> {
let mut result = vec![0 as GLuint; n as usize];
unsafe {
self.ffi_gl_.GenFencesAPPLE(n, result.as_mut_ptr());
}
result
}
fn delete_fences_apple(&self, fences: &[GLuint]) {
unsafe {
self.ffi_gl_
.DeleteFencesAPPLE(fences.len() as GLsizei, fences.as_ptr());
}
}
fn set_fence_apple(&self, fence: GLuint) {
unsafe {
self.ffi_gl_.SetFenceAPPLE(fence);
}
}
fn finish_fence_apple(&self, fence: GLuint) {
unsafe {
self.ffi_gl_.FinishFenceAPPLE(fence);
}
}
fn test_fence_apple(&self, fence: GLuint) {
unsafe {
self.ffi_gl_.TestFenceAPPLE(fence);
}
}
fn test_object_apple(&self, object: GLenum, name: GLuint) -> GLboolean {
unsafe {
self.ffi_gl_.TestObjectAPPLE(object, name)
}
}
fn finish_object_apple(&self, object: GLenum, name: GLuint) {
unsafe {
// the spec has a typo for name as GLint instead of GLuint
self.ffi_gl_.FinishObjectAPPLE(object, name as GLint);
}
}
// GL_ARB_blend_func_extended
fn bind_frag_data_location_indexed(
&self,
program: GLuint,
color_number: GLuint,
index: GLuint,
name: &str,
) {
if !self.ffi_gl_.BindFragDataLocationIndexed.is_loaded() {
return;
}
let c_string = CString::new(name).unwrap();
unsafe {
self.ffi_gl_.BindFragDataLocationIndexed(
program,
color_number,
index,
c_string.as_ptr(),
)
}
}
fn get_frag_data_index(&self, program: GLuint, name: &str) -> GLint {
if !self.ffi_gl_.GetFragDataIndex.is_loaded() {
return -1;
}
let c_string = CString::new(name).unwrap();
unsafe { self.ffi_gl_.GetFragDataIndex(program, c_string.as_ptr()) }
}
// 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) {
unimplemented!("This extension is GLES only");
}
// 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)
{
unimplemented!("This extension is GLES only");
}
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)
{
unimplemented!("This extension is GLES only");
}
// 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,
) {
unimplemented!("This extension is ANGLE only");
}
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,
) {
unimplemented!("This extension is ANGLE only");
}
fn buffer_storage(
&self,
target: GLenum,
size: GLsizeiptr,
data: *const GLvoid,
flags: GLbitfield,
) {
unsafe {
self.ffi_gl_.BufferStorage(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) {
}
fn end_tiling_qcom(&self, _preserve_mask: GLbitfield) {
}
}