Use active uniforms data to implement gl.uniform* checks

This commit is contained in:
Anthony Ramine 2018-07-16 10:16:08 +02:00
parent e7631cea61
commit 476640c3ab
14 changed files with 477 additions and 304 deletions

View file

@ -425,6 +425,21 @@ impl WebGLRenderingContext {
}
}
fn with_location<F>(&self, location: Option<&WebGLUniformLocation>, f: F)
where
F: FnOnce(&WebGLUniformLocation) -> WebGLResult<()>,
{
let location = match location {
Some(loc) => loc,
None => return,
};
match self.current_program.get() {
Some(ref program) if program.id() == location.program_id() => {}
_ => return self.webgl_error(InvalidOperation),
}
handle_potential_webgl_error!(self, f(location));
}
fn tex_parameter(&self, target: u32, name: u32, value: TexParameterValue) {
let texture = match target {
constants::TEXTURE_2D |
@ -528,38 +543,6 @@ impl WebGLRenderingContext {
}
}
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.10
// https://www.khronos.org/opengles/sdk/docs/man/xhtml/glUniform.xml
// https://www.khronos.org/registry/gles/specs/2.0/es_full_spec_2.0.25.pdf#nameddest=section-2.10.4
fn validate_uniform_parameters<T>(&self,
uniform: Option<&WebGLUniformLocation>,
uniform_type: UniformSetterType,
data: &[T]) -> bool {
let uniform = match uniform {
Some(uniform) => uniform,
None => return false,
};
let program = self.current_program.get();
match program {
Some(ref program) if program.id() == uniform.program_id() => {},
_ => {
self.webgl_error(InvalidOperation);
return false;
},
};
// TODO(emilio): Get more complex uniform info from ANGLE, and use it to
// properly validate that the uniform setter type is compatible with the
// uniform type, and that the uniform size matches.
if data.len() % uniform_type.element_count() != 0 {
self.webgl_error(InvalidOperation);
return false;
}
true
}
// https://en.wikipedia.org/wiki/Relative_luminance
#[inline]
fn luminance(r: u8, g: u8, b: u8) -> u8 {
@ -2762,9 +2745,7 @@ impl WebGLRenderingContextMethods for WebGLRenderingContext {
program: &WebGLProgram,
name: DOMString,
) -> Option<DomRoot<WebGLUniformLocation>> {
handle_potential_webgl_error!(self, program.get_uniform_location(name), None).map(|location| {
WebGLUniformLocation::new(self.global().as_window(), location, program.id())
})
handle_potential_webgl_error!(self, program.get_uniform_location(name), None)
}
#[allow(unsafe_code)]
@ -3166,75 +3147,145 @@ impl WebGLRenderingContextMethods for WebGLRenderingContext {
}
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.10
fn Uniform1f(&self,
location: Option<&WebGLUniformLocation>,
val: f32) {
if self.validate_uniform_parameters(location, UniformSetterType::Float, &[val]) {
self.send_command(WebGLCommand::Uniform1f(location.unwrap().id(), val))
}
fn Uniform1f(
&self,
location: Option<&WebGLUniformLocation>,
val: f32,
) {
self.with_location(location, |location| {
match location.type_() {
constants::BOOL | constants::FLOAT => {}
_ => return Err(InvalidOperation),
}
self.send_command(WebGLCommand::Uniform1f(location.id(), val));
Ok(())
});
}
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.10
fn Uniform1i(&self,
location: Option<&WebGLUniformLocation>,
val: i32) {
if self.validate_uniform_parameters(location, UniformSetterType::Int, &[val]) {
self.send_command(WebGLCommand::Uniform1i(location.unwrap().id(), val))
}
fn Uniform1i(
&self,
location: Option<&WebGLUniformLocation>,
val: i32,
) {
self.with_location(location, |location| {
match location.type_() {
constants::BOOL | constants::INT => {}
constants::SAMPLER_2D | constants::SAMPLER_CUBE => {
if val < 0 || val as u32 >= self.limits.max_combined_texture_image_units {
return Err(InvalidValue);
}
}
_ => return Err(InvalidOperation),
}
self.send_command(WebGLCommand::Uniform1i(location.id(), val));
Ok(())
});
}
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.10
fn Uniform1iv(
&self,
location: Option<&WebGLUniformLocation>,
v: Int32ArrayOrLongSequence,
val: Int32ArrayOrLongSequence,
) {
let v = match v {
Int32ArrayOrLongSequence::Int32Array(v) => v.to_vec(),
Int32ArrayOrLongSequence::LongSequence(v) => v,
};
if self.validate_uniform_parameters(location, UniformSetterType::Int, &v) {
self.send_command(WebGLCommand::Uniform1iv(location.unwrap().id(), v))
}
self.with_location(location, |location| {
match location.type_() {
constants::BOOL | constants::INT | constants::SAMPLER_2D | constants::SAMPLER_CUBE => {}
_ => return Err(InvalidOperation),
}
let val = match val {
Int32ArrayOrLongSequence::Int32Array(v) => v.to_vec(),
Int32ArrayOrLongSequence::LongSequence(v) => v,
};
if val.is_empty() {
return Err(InvalidValue);
}
if location.size().is_none() && val.len() != 1 {
return Err(InvalidOperation);
}
match location.type_() {
constants::SAMPLER_2D | constants::SAMPLER_CUBE => {
for &v in val.iter().take(cmp::min(location.size().unwrap_or(1) as usize, val.len())) {
if v < 0 || v as u32 >= self.limits.max_combined_texture_image_units {
return Err(InvalidValue);
}
}
}
_ => {}
}
self.send_command(WebGLCommand::Uniform1iv(location.id(), val));
Ok(())
});
}
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.10
fn Uniform1fv(
&self,
location: Option<&WebGLUniformLocation>,
v: Float32ArrayOrUnrestrictedFloatSequence,
val: Float32ArrayOrUnrestrictedFloatSequence,
) {
let v = match v {
Float32ArrayOrUnrestrictedFloatSequence::Float32Array(v) => v.to_vec(),
Float32ArrayOrUnrestrictedFloatSequence::UnrestrictedFloatSequence(v) => v,
};
if self.validate_uniform_parameters(location, UniformSetterType::Float, &v) {
self.send_command(WebGLCommand::Uniform1fv(location.unwrap().id(), v));
}
self.with_location(location, |location| {
match location.type_() {
constants::BOOL | constants::FLOAT => {}
_ => return Err(InvalidOperation),
}
let val = match val {
Float32ArrayOrUnrestrictedFloatSequence::Float32Array(v) => v.to_vec(),
Float32ArrayOrUnrestrictedFloatSequence::UnrestrictedFloatSequence(v) => v,
};
if val.is_empty() {
return Err(InvalidValue);
}
if location.size().is_none() && val.len() != 1 {
return Err(InvalidOperation);
}
self.send_command(WebGLCommand::Uniform1fv(location.id(), val));
Ok(())
});
}
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.10
fn Uniform2f(&self,
location: Option<&WebGLUniformLocation>,
x: f32, y: f32) {
if self.validate_uniform_parameters(location, UniformSetterType::FloatVec2, &[x, y]) {
self.send_command(WebGLCommand::Uniform2f(location.unwrap().id(), x, y));
}
fn Uniform2f(
&self,
location: Option<&WebGLUniformLocation>,
x: f32,
y: f32,
) {
self.with_location(location, |location| {
match location.type_() {
constants::BOOL_VEC2 | constants::FLOAT_VEC2 => {}
_ => return Err(InvalidOperation),
}
self.send_command(WebGLCommand::Uniform2f(location.id(), x, y));
Ok(())
});
}
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.10
fn Uniform2fv(
&self,
location: Option<&WebGLUniformLocation>,
v: Float32ArrayOrUnrestrictedFloatSequence,
val: Float32ArrayOrUnrestrictedFloatSequence,
) {
let v = match v {
Float32ArrayOrUnrestrictedFloatSequence::Float32Array(v) => v.to_vec(),
Float32ArrayOrUnrestrictedFloatSequence::UnrestrictedFloatSequence(v) => v,
};
if self.validate_uniform_parameters(location, UniformSetterType::FloatVec2, &v) {
self.send_command(WebGLCommand::Uniform2fv(location.unwrap().id(), v));
}
self.with_location(location, |location| {
match location.type_() {
constants::BOOL_VEC2 | constants::FLOAT_VEC2 => {}
_ => return Err(InvalidOperation),
}
let val = match val {
Float32ArrayOrUnrestrictedFloatSequence::Float32Array(v) => v.to_vec(),
Float32ArrayOrUnrestrictedFloatSequence::UnrestrictedFloatSequence(v) => v,
};
if val.len() < 2 || val.len() % 2 != 0 {
return Err(InvalidValue);
}
if location.size().is_none() && val.len() != 2 {
return Err(InvalidOperation);
}
self.send_command(WebGLCommand::Uniform2fv(location.id(), val));
Ok(())
});
}
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.10
@ -3244,26 +3295,40 @@ impl WebGLRenderingContextMethods for WebGLRenderingContext {
x: i32,
y: i32,
) {
if self.validate_uniform_parameters(location,
UniformSetterType::IntVec2,
&[x, y]) {
self.send_command(WebGLCommand::Uniform2i(location.unwrap().id(), x, y));
}
self.with_location(location, |location| {
match location.type_() {
constants::BOOL_VEC2 | constants::INT_VEC2 => {}
_ => return Err(InvalidOperation),
}
self.send_command(WebGLCommand::Uniform2i(location.id(), x, y));
Ok(())
});
}
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.10
fn Uniform2iv(
&self,
location: Option<&WebGLUniformLocation>,
v: Int32ArrayOrLongSequence,
val: Int32ArrayOrLongSequence,
) {
let v = match v {
Int32ArrayOrLongSequence::Int32Array(v) => v.to_vec(),
Int32ArrayOrLongSequence::LongSequence(v) => v,
};
if self.validate_uniform_parameters(location, UniformSetterType::IntVec2, &v) {
self.send_command(WebGLCommand::Uniform2iv(location.unwrap().id(), v));
}
self.with_location(location, |location| {
match location.type_() {
constants::BOOL_VEC2 | constants::INT_VEC2 => {}
_ => return Err(InvalidOperation),
}
let val = match val {
Int32ArrayOrLongSequence::Int32Array(v) => v.to_vec(),
Int32ArrayOrLongSequence::LongSequence(v) => v,
};
if val.len() < 2 || val.len() % 2 != 0 {
return Err(InvalidValue);
}
if location.size().is_none() && val.len() != 2 {
return Err(InvalidOperation);
}
self.send_command(WebGLCommand::Uniform2iv(location.id(), val));
Ok(())
});
}
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.10
@ -3274,52 +3339,84 @@ impl WebGLRenderingContextMethods for WebGLRenderingContext {
y: f32,
z: f32,
) {
if self.validate_uniform_parameters(location,
UniformSetterType::FloatVec3,
&[x, y, z]) {
self.send_command(WebGLCommand::Uniform3f(location.unwrap().id(), x, y, z));
}
self.with_location(location, |location| {
match location.type_() {
constants::BOOL_VEC3 | constants::FLOAT_VEC3 => {}
_ => return Err(InvalidOperation),
}
self.send_command(WebGLCommand::Uniform3f(location.id(), x, y, z));
Ok(())
});
}
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.10
fn Uniform3fv(
&self,
location: Option<&WebGLUniformLocation>,
v: Float32ArrayOrUnrestrictedFloatSequence,
val: Float32ArrayOrUnrestrictedFloatSequence,
) {
let v = match v {
Float32ArrayOrUnrestrictedFloatSequence::Float32Array(v) => v.to_vec(),
Float32ArrayOrUnrestrictedFloatSequence::UnrestrictedFloatSequence(v) => v,
};
if self.validate_uniform_parameters(location, UniformSetterType::FloatVec3, &v) {
self.send_command(WebGLCommand::Uniform3fv(location.unwrap().id(), v))
}
self.with_location(location, |location| {
match location.type_() {
constants::BOOL_VEC3 | constants::FLOAT_VEC3 => {}
_ => return Err(InvalidOperation),
}
let val = match val {
Float32ArrayOrUnrestrictedFloatSequence::Float32Array(v) => v.to_vec(),
Float32ArrayOrUnrestrictedFloatSequence::UnrestrictedFloatSequence(v) => v,
};
if val.len() < 3 || val.len() % 3 != 0 {
return Err(InvalidValue);
}
if location.size().is_none() && val.len() != 3 {
return Err(InvalidOperation);
}
self.send_command(WebGLCommand::Uniform3fv(location.id(), val));
Ok(())
});
}
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.10
fn Uniform3i(&self,
location: Option<&WebGLUniformLocation>,
x: i32, y: i32, z: i32) {
if self.validate_uniform_parameters(location,
UniformSetterType::IntVec3,
&[x, y, z]) {
self.send_command(WebGLCommand::Uniform3i(location.unwrap().id(), x, y, z))
}
fn Uniform3i(
&self,
location: Option<&WebGLUniformLocation>,
x: i32,
y: i32,
z: i32,
) {
self.with_location(location, |location| {
match location.type_() {
constants::BOOL_VEC3 | constants::INT_VEC3 => {}
_ => return Err(InvalidOperation),
}
self.send_command(WebGLCommand::Uniform3i(location.id(), x, y, z));
Ok(())
});
}
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.10
fn Uniform3iv(
&self,
location: Option<&WebGLUniformLocation>,
v: Int32ArrayOrLongSequence,
val: Int32ArrayOrLongSequence,
) {
let v = match v {
Int32ArrayOrLongSequence::Int32Array(v) => v.to_vec(),
Int32ArrayOrLongSequence::LongSequence(v) => v,
};
if self.validate_uniform_parameters(location, UniformSetterType::IntVec3, &v) {
self.send_command(WebGLCommand::Uniform3iv(location.unwrap().id(), v))
}
self.with_location(location, |location| {
match location.type_() {
constants::BOOL_VEC3 | constants::INT_VEC3 => {}
_ => return Err(InvalidOperation),
}
let val = match val {
Int32ArrayOrLongSequence::Int32Array(v) => v.to_vec(),
Int32ArrayOrLongSequence::LongSequence(v) => v,
};
if val.len() < 3 || val.len() % 3 != 0 {
return Err(InvalidValue);
}
if location.size().is_none() && val.len() != 3 {
return Err(InvalidOperation);
}
self.send_command(WebGLCommand::Uniform3iv(location.id(), val));
Ok(())
});
}
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.10
@ -3331,11 +3428,14 @@ impl WebGLRenderingContextMethods for WebGLRenderingContext {
z: i32,
w: i32,
) {
if self.validate_uniform_parameters(location,
UniformSetterType::IntVec4,
&[x, y, z, w]) {
self.send_command(WebGLCommand::Uniform4i(location.unwrap().id(), x, y, z, w))
}
self.with_location(location, |location| {
match location.type_() {
constants::BOOL_VEC4 | constants::INT_VEC4 => {}
_ => return Err(InvalidOperation),
}
self.send_command(WebGLCommand::Uniform4i(location.id(), x, y, z, w));
Ok(())
});
}
@ -3343,15 +3443,26 @@ impl WebGLRenderingContextMethods for WebGLRenderingContext {
fn Uniform4iv(
&self,
location: Option<&WebGLUniformLocation>,
v: Int32ArrayOrLongSequence,
val: Int32ArrayOrLongSequence,
) {
let v = match v {
Int32ArrayOrLongSequence::Int32Array(v) => v.to_vec(),
Int32ArrayOrLongSequence::LongSequence(v) => v,
};
if self.validate_uniform_parameters(location, UniformSetterType::IntVec4, &v) {
self.send_command(WebGLCommand::Uniform4iv(location.unwrap().id(), v))
}
self.with_location(location, |location| {
match location.type_() {
constants::BOOL_VEC4 | constants::INT_VEC4 => {}
_ => return Err(InvalidOperation),
}
let val = match val {
Int32ArrayOrLongSequence::Int32Array(v) => v.to_vec(),
Int32ArrayOrLongSequence::LongSequence(v) => v,
};
if val.len() < 4 || val.len() % 4 != 0 {
return Err(InvalidValue);
}
if location.size().is_none() && val.len() != 4 {
return Err(InvalidOperation);
}
self.send_command(WebGLCommand::Uniform4iv(location.id(), val));
Ok(())
});
}
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.10
@ -3363,26 +3474,40 @@ impl WebGLRenderingContextMethods for WebGLRenderingContext {
z: f32,
w: f32,
) {
if self.validate_uniform_parameters(location,
UniformSetterType::FloatVec4,
&[x, y, z, w]) {
self.send_command(WebGLCommand::Uniform4f(location.unwrap().id(), x, y, z, w))
}
self.with_location(location, |location| {
match location.type_() {
constants::BOOL_VEC4 | constants::FLOAT_VEC4 => {}
_ => return Err(InvalidOperation),
}
self.send_command(WebGLCommand::Uniform4f(location.id(), x, y, z, w));
Ok(())
});
}
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.10
fn Uniform4fv(
&self,
location: Option<&WebGLUniformLocation>,
v: Float32ArrayOrUnrestrictedFloatSequence,
val: Float32ArrayOrUnrestrictedFloatSequence,
) {
let v = match v {
Float32ArrayOrUnrestrictedFloatSequence::Float32Array(v) => v.to_vec(),
Float32ArrayOrUnrestrictedFloatSequence::UnrestrictedFloatSequence(v) => v,
};
if self.validate_uniform_parameters(location, UniformSetterType::FloatVec4, &v) {
self.send_command(WebGLCommand::Uniform4fv(location.unwrap().id(), v))
}
self.with_location(location, |location| {
match location.type_() {
constants::BOOL_VEC4 | constants::FLOAT_VEC4 => {}
_ => return Err(InvalidOperation),
}
let val = match val {
Float32ArrayOrUnrestrictedFloatSequence::Float32Array(v) => v.to_vec(),
Float32ArrayOrUnrestrictedFloatSequence::UnrestrictedFloatSequence(v) => v,
};
if val.len() < 4 || val.len() % 4 != 0 {
return Err(InvalidValue);
}
if location.size().is_none() && val.len() != 4 {
return Err(InvalidOperation);
}
self.send_command(WebGLCommand::Uniform4fv(location.id(), val));
Ok(())
});
}
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.10
@ -3390,15 +3515,29 @@ impl WebGLRenderingContextMethods for WebGLRenderingContext {
&self,
location: Option<&WebGLUniformLocation>,
transpose: bool,
v: Float32ArrayOrUnrestrictedFloatSequence,
val: Float32ArrayOrUnrestrictedFloatSequence,
) {
let v = match v {
Float32ArrayOrUnrestrictedFloatSequence::Float32Array(v) => v.to_vec(),
Float32ArrayOrUnrestrictedFloatSequence::UnrestrictedFloatSequence(v) => v,
};
if self.validate_uniform_parameters(location, UniformSetterType::FloatMat2, &v) {
self.send_command(WebGLCommand::UniformMatrix2fv(location.unwrap().id(), transpose, v));
}
self.with_location(location, |location| {
match location.type_() {
constants::FLOAT_MAT2 => {}
_ => return Err(InvalidOperation),
}
let val = match val {
Float32ArrayOrUnrestrictedFloatSequence::Float32Array(v) => v.to_vec(),
Float32ArrayOrUnrestrictedFloatSequence::UnrestrictedFloatSequence(v) => v,
};
if transpose {
return Err(InvalidValue);
}
if val.len() < 4 || val.len() % 4 != 0 {
return Err(InvalidValue);
}
if location.size().is_none() && val.len() != 4 {
return Err(InvalidOperation);
}
self.send_command(WebGLCommand::UniformMatrix2fv(location.id(), val));
Ok(())
});
}
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.10
@ -3406,15 +3545,29 @@ impl WebGLRenderingContextMethods for WebGLRenderingContext {
&self,
location: Option<&WebGLUniformLocation>,
transpose: bool,
v: Float32ArrayOrUnrestrictedFloatSequence,
val: Float32ArrayOrUnrestrictedFloatSequence,
) {
let v = match v {
Float32ArrayOrUnrestrictedFloatSequence::Float32Array(v) => v.to_vec(),
Float32ArrayOrUnrestrictedFloatSequence::UnrestrictedFloatSequence(v) => v,
};
if self.validate_uniform_parameters(location, UniformSetterType::FloatMat3, &v) {
self.send_command(WebGLCommand::UniformMatrix3fv(location.unwrap().id(), transpose, v));
}
self.with_location(location, |location| {
match location.type_() {
constants::FLOAT_MAT3 => {}
_ => return Err(InvalidOperation),
}
let val = match val {
Float32ArrayOrUnrestrictedFloatSequence::Float32Array(v) => v.to_vec(),
Float32ArrayOrUnrestrictedFloatSequence::UnrestrictedFloatSequence(v) => v,
};
if transpose {
return Err(InvalidValue);
}
if val.len() < 9 || val.len() % 9 != 0 {
return Err(InvalidValue);
}
if location.size().is_none() && val.len() != 9 {
return Err(InvalidOperation);
}
self.send_command(WebGLCommand::UniformMatrix3fv(location.id(), val));
Ok(())
});
}
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.10
@ -3422,15 +3575,29 @@ impl WebGLRenderingContextMethods for WebGLRenderingContext {
&self,
location: Option<&WebGLUniformLocation>,
transpose: bool,
v: Float32ArrayOrUnrestrictedFloatSequence,
val: Float32ArrayOrUnrestrictedFloatSequence,
) {
let v = match v {
Float32ArrayOrUnrestrictedFloatSequence::Float32Array(v) => v.to_vec(),
Float32ArrayOrUnrestrictedFloatSequence::UnrestrictedFloatSequence(v) => v,
};
if self.validate_uniform_parameters(location, UniformSetterType::FloatMat4, &v) {
self.send_command(WebGLCommand::UniformMatrix4fv(location.unwrap().id(), transpose, v));
}
self.with_location(location, |location| {
match location.type_() {
constants::FLOAT_MAT4 => {}
_ => return Err(InvalidOperation),
}
let val = match val {
Float32ArrayOrUnrestrictedFloatSequence::Float32Array(v) => v.to_vec(),
Float32ArrayOrUnrestrictedFloatSequence::UnrestrictedFloatSequence(v) => v,
};
if transpose {
return Err(InvalidValue);
}
if val.len() < 16 || val.len() % 16 != 0 {
return Err(InvalidValue);
}
if location.size().is_none() && val.len() != 16 {
return Err(InvalidOperation);
}
self.send_command(WebGLCommand::UniformMatrix4fv(location.id(), val));
Ok(())
});
}
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.9
@ -3932,39 +4099,6 @@ impl LayoutCanvasWebGLRenderingContextHelpers for LayoutDom<WebGLRenderingContex
}
}
#[derive(Debug, PartialEq)]
pub enum UniformSetterType {
Int,
IntVec2,
IntVec3,
IntVec4,
Float,
FloatVec2,
FloatVec3,
FloatVec4,
FloatMat2,
FloatMat3,
FloatMat4,
}
impl UniformSetterType {
pub fn element_count(&self) -> usize {
match *self {
UniformSetterType::Int => 1,
UniformSetterType::IntVec2 => 2,
UniformSetterType::IntVec3 => 3,
UniformSetterType::IntVec4 => 4,
UniformSetterType::Float => 1,
UniformSetterType::FloatVec2 => 2,
UniformSetterType::FloatVec3 => 3,
UniformSetterType::FloatVec4 => 4,
UniformSetterType::FloatMat2 => 4,
UniformSetterType::FloatMat3 => 9,
UniformSetterType::FloatMat4 => 16,
}
}
}
#[derive(JSTraceable, MallocSizeOf)]
#[must_root]
pub struct VertexAttribs {