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Implement WEBGL_color_buffer_float and EXT_color_buffer_half_float (fixes #22113)

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This commit is contained in:
Josh Matthews 2018-09-10 12:10:27 -04:00 • committed by Anthony Ramine
parent 176d984b3b
commit e31462c37c
12 changed files with 240 additions and 32 deletions
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25
components/script/dom/webgl_extensions/extensions.rs
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@ -11,9 +11,13 @@ use dom::bindings::codegen::Bindings::OESTextureHalfFloatBinding::OESTextureHalf
use dom::bindings::codegen::Bindings::OESVertexArrayObjectBinding::OESVertexArrayObjectConstants;
use dom::bindings::codegen::Bindings::WebGLRenderingContextBinding::WebGLRenderingContextConstants as constants;
use dom::bindings::trace::JSTraceable;
use dom::extcolorbufferhalffloat::EXTColorBufferHalfFloat;
use dom::oestexturefloat::OESTextureFloat;
use dom::oestexturehalffloat::OESTextureHalfFloat;
use dom::webglcolorbufferfloat::WEBGLColorBufferFloat;
use dom::webglrenderingcontext::WebGLRenderingContext;
use fnv::{FnvHashMap, FnvHashSet};
use gleam::gl::GLenum;
use gleam::gl::{self, GLenum};
use js::jsapi::JSObject;
use malloc_size_of::MallocSizeOf;
use std::collections::HashMap;
@ -333,6 +337,7 @@ impl WebGLExtensions {
fn register_all_extensions(&self) {
self.register::<ext::angleinstancedarrays::ANGLEInstancedArrays>();
self.register::<ext::extblendminmax::EXTBlendMinmax>();
self.register::<ext::extcolorbufferhalffloat::EXTColorBufferHalfFloat>();
self.register::<ext::extshadertexturelod::EXTShaderTextureLod>();
self.register::<ext::exttexturefilteranisotropic::EXTTextureFilterAnisotropic>();
self.register::<ext::oeselementindexuint::OESElementIndexUint>();
@ -342,6 +347,7 @@ impl WebGLExtensions {
self.register::<ext::oestexturehalffloat::OESTextureHalfFloat>();
self.register::<ext::oestexturehalffloatlinear::OESTextureHalfFloatLinear>();
self.register::<ext::oesvertexarrayobject::OESVertexArrayObject>();
self.register::<ext::webglcolorbufferfloat::WEBGLColorBufferFloat>();
}
pub fn enable_element_index_uint(&self) {
@ -359,6 +365,23 @@ impl WebGLExtensions {
pub fn is_blend_minmax_enabled(&self) -> bool {
self.features.borrow().blend_minmax_enabled
}
pub fn is_float_buffer_renderable(&self) -> bool {
self.is_enabled::<WEBGLColorBufferFloat>() || self.is_enabled::<OESTextureFloat>()
}
pub fn is_half_float_buffer_renderable(&self) -> bool {
self.is_enabled::<EXTColorBufferHalfFloat>() || self.is_enabled::<OESTextureHalfFloat>()
}
pub fn effective_type(&self, type_: u32) -> u32 {
if type_ == OESTextureHalfFloatConstants::HALF_FLOAT_OES {
if !self.supports_gl_extension("GL_OES_texture_half_float") {
return gl::HALF_FLOAT;
}
}
type_
}
}
// Helper structs