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Implement EXT_texture_filter_anisotropic

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This commit is contained in:
Anthony Ramine 2018-05-25 14:58:50 +02:00
parent eb1dfd0775
commit f1288cc6e0
10 changed files with 262 additions and 122 deletions
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43
components/script/dom/webgl_extensions/extensions.rs
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@ -4,6 +4,7 @@
use canvas_traits::webgl::{WebGLError, WebGLVersion};
use dom::bindings::cell::DomRefCell;
use dom::bindings::codegen::Bindings::EXTTextureFilterAnisotropicBinding::EXTTextureFilterAnisotropicConstants;
use dom::bindings::codegen::Bindings::OESStandardDerivativesBinding::OESStandardDerivativesConstants;
use dom::bindings::codegen::Bindings::OESTextureHalfFloatBinding::OESTextureHalfFloatConstants;
use dom::bindings::codegen::Bindings::WebGLRenderingContextBinding::WebGLRenderingContextConstants as constants;
@ -41,8 +42,16 @@ const DEFAULT_NOT_FILTERABLE_TEX_TYPES: [GLenum; 2] = [
// Param names that are implemented for glGetParameter in a WebGL 1.0 context
// but must trigger a InvalidEnum error until the related WebGL Extensions are enabled.
// Example: https://www.khronos.org/registry/webgl/extensions/OES_standard_derivatives/
const DEFAULT_DISABLED_GET_PARAMETER_NAMES_WEBGL1: [GLenum; 1] = [
OESStandardDerivativesConstants::FRAGMENT_SHADER_DERIVATIVE_HINT_OES
const DEFAULT_DISABLED_GET_PARAMETER_NAMES_WEBGL1: [GLenum; 2] = [
EXTTextureFilterAnisotropicConstants::MAX_TEXTURE_MAX_ANISOTROPY_EXT,
OESStandardDerivativesConstants::FRAGMENT_SHADER_DERIVATIVE_HINT_OES,
];
// Param names that are implemented for glGetTexParameter in a WebGL 1.0 context
// but must trigger a InvalidEnum error until the related WebGL Extensions are enabled.
// Example: https://www.khronos.org/registry/webgl/extensions/OES_standard_derivatives/
const DEFAULT_DISABLED_GET_TEX_PARAMETER_NAMES_WEBGL1: [GLenum; 1] = [
EXTTextureFilterAnisotropicConstants::TEXTURE_MAX_ANISOTROPY_EXT,
];
/// WebGL features that are enabled/disabled by WebGL Extensions.
@ -57,20 +66,30 @@ struct WebGLExtensionFeatures {
hint_targets: FnvHashSet<GLenum>,
/// WebGL GetParameter() names enabled by extensions.
disabled_get_parameter_names: FnvHashSet<GLenum>,
/// WebGL GetTexParameter() names enabled by extensions.
disabled_get_tex_parameter_names: FnvHashSet<GLenum>,
/// WebGL OES_element_index_uint extension.
element_index_uint_enabled: bool,
}
impl WebGLExtensionFeatures {
fn new(webgl_version: WebGLVersion) -> Self {
let (disabled_tex_types, disabled_get_parameter_names, element_index_uint_enabled) = match webgl_version {
let (
disabled_tex_types,
disabled_get_parameter_names,
disabled_get_tex_parameter_names,
element_index_uint_enabled,
) = match webgl_version {
WebGLVersion::WebGL1 => {
(DEFAULT_DISABLED_TEX_TYPES_WEBGL1.iter().cloned().collect(),
DEFAULT_DISABLED_GET_PARAMETER_NAMES_WEBGL1.iter().cloned().collect(),
false)
(
DEFAULT_DISABLED_TEX_TYPES_WEBGL1.iter().cloned().collect(),
DEFAULT_DISABLED_GET_PARAMETER_NAMES_WEBGL1.iter().cloned().collect(),
DEFAULT_DISABLED_GET_TEX_PARAMETER_NAMES_WEBGL1.iter().cloned().collect(),
false,
)
},
WebGLVersion::WebGL2 => {
(Default::default(), Default::default(), true)
(Default::default(), Default::default(), Default::default(), true)
}
};
Self {
@ -81,6 +100,7 @@ impl WebGLExtensionFeatures {
query_parameter_handlers: Default::default(),
hint_targets: Default::default(),
disabled_get_parameter_names,
disabled_get_tex_parameter_names,
element_index_uint_enabled,
}
}
@ -236,7 +256,16 @@ impl WebGLExtensions {
!self.features.borrow().disabled_get_parameter_names.contains(&name)
}
pub fn enable_get_tex_parameter_name(&self, name: GLenum) {
self.features.borrow_mut().disabled_get_tex_parameter_names.remove(&name);
}
pub fn is_get_tex_parameter_name_enabled(&self, name: GLenum) -> bool {
!self.features.borrow().disabled_get_tex_parameter_names.contains(&name)
}
fn register_all_extensions(&self) {
self.register::<ext::exttexturefilteranisotropic::EXTTextureFilterAnisotropic>();
self.register::<ext::oeselementindexuint::OESElementIndexUint>();
self.register::<ext::oesstandardderivatives::OESStandardDerivatives>();
self.register::<ext::oestexturefloat::OESTextureFloat>();