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Add initial support for WebGL compressed textures
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58 changes: 58 additions & 0 deletions
58
components/script/dom/webgl_extensions/ext/webglcompressedtextureetc1.rs
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/* This Source Code Form is subject to the terms of the Mozilla Public | ||
* License, v. 2.0. If a copy of the MPL was not distributed with this | ||
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */ | ||
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use super::{WebGLExtension, WebGLExtensionSpec, WebGLExtensions}; | ||
use crate::dom::bindings::codegen::Bindings::WEBGLCompressedTextureETC1Binding; | ||
use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector}; | ||
use crate::dom::bindings::root::DomRoot; | ||
use crate::dom::webglrenderingcontext::WebGLRenderingContext; | ||
use crate::dom::webgltexture::{TexCompression, TexCompressionValidation}; | ||
use canvas_traits::webgl::{TexFormat, WebGLVersion}; | ||
use dom_struct::dom_struct; | ||
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#[dom_struct] | ||
pub struct WEBGLCompressedTextureETC1 { | ||
reflector_: Reflector, | ||
} | ||
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impl WEBGLCompressedTextureETC1 { | ||
fn new_inherited() -> WEBGLCompressedTextureETC1 { | ||
Self { | ||
reflector_: Reflector::new(), | ||
} | ||
} | ||
} | ||
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impl WebGLExtension for WEBGLCompressedTextureETC1 { | ||
type Extension = WEBGLCompressedTextureETC1; | ||
fn new(ctx: &WebGLRenderingContext) -> DomRoot<WEBGLCompressedTextureETC1> { | ||
reflect_dom_object( | ||
Box::new(WEBGLCompressedTextureETC1::new_inherited()), | ||
&*ctx.global(), | ||
WEBGLCompressedTextureETC1Binding::Wrap, | ||
) | ||
} | ||
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fn spec() -> WebGLExtensionSpec { | ||
WebGLExtensionSpec::Specific(WebGLVersion::WebGL1) | ||
} | ||
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fn is_supported(ext: &WebGLExtensions) -> bool { | ||
ext.supports_gl_extension("GL_OES_compressed_ETC1_RGB8_texture") | ||
} | ||
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fn enable(ext: &WebGLExtensions) { | ||
ext.add_tex_compression_formats(&[TexCompression { | ||
format: TexFormat::CompressedRgbEtc1, | ||
bytes_per_block: 8, | ||
block_width: 4, | ||
block_height: 4, | ||
validation: TexCompressionValidation::None, | ||
}]); | ||
} | ||
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fn name() -> &'static str { | ||
"WEBGL_compressed_texture_etc1" | ||
} | ||
} |
86 changes: 86 additions & 0 deletions
86
components/script/dom/webgl_extensions/ext/webglcompressedtextures3tc.rs
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/* This Source Code Form is subject to the terms of the Mozilla Public | ||
* License, v. 2.0. If a copy of the MPL was not distributed with this | ||
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */ | ||
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use super::{WebGLExtension, WebGLExtensionSpec, WebGLExtensions}; | ||
use crate::dom::bindings::codegen::Bindings::WEBGLCompressedTextureS3TCBinding; | ||
use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector}; | ||
use crate::dom::bindings::root::DomRoot; | ||
use crate::dom::webglrenderingcontext::WebGLRenderingContext; | ||
use crate::dom::webgltexture::{TexCompression, TexCompressionValidation}; | ||
use canvas_traits::webgl::{TexFormat, WebGLVersion}; | ||
use dom_struct::dom_struct; | ||
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#[dom_struct] | ||
pub struct WEBGLCompressedTextureS3TC { | ||
reflector_: Reflector, | ||
} | ||
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impl WEBGLCompressedTextureS3TC { | ||
fn new_inherited() -> WEBGLCompressedTextureS3TC { | ||
Self { | ||
reflector_: Reflector::new(), | ||
} | ||
} | ||
} | ||
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impl WebGLExtension for WEBGLCompressedTextureS3TC { | ||
type Extension = WEBGLCompressedTextureS3TC; | ||
fn new(ctx: &WebGLRenderingContext) -> DomRoot<WEBGLCompressedTextureS3TC> { | ||
reflect_dom_object( | ||
Box::new(WEBGLCompressedTextureS3TC::new_inherited()), | ||
&*ctx.global(), | ||
WEBGLCompressedTextureS3TCBinding::Wrap, | ||
) | ||
} | ||
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fn spec() -> WebGLExtensionSpec { | ||
WebGLExtensionSpec::Specific(WebGLVersion::WebGL1) | ||
} | ||
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fn is_supported(ext: &WebGLExtensions) -> bool { | ||
ext.supports_gl_extension("GL_EXT_texture_compression_s3tc") || | ||
ext.supports_all_gl_extension(&[ | ||
"GL_EXT_texture_compression_dxt1", | ||
"GL_ANGLE_texture_compression_dxt3", | ||
"GL_ANGLE_texture_compression_dxt5", | ||
]) | ||
} | ||
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fn enable(ext: &WebGLExtensions) { | ||
ext.add_tex_compression_formats(&[ | ||
TexCompression { | ||
format: TexFormat::CompressedRgbS3tcDxt1, | ||
bytes_per_block: 8, | ||
block_width: 4, | ||
block_height: 4, | ||
validation: TexCompressionValidation::S3TC, | ||
}, | ||
TexCompression { | ||
format: TexFormat::CompressedRgbaS3tcDxt1, | ||
bytes_per_block: 8, | ||
block_width: 4, | ||
block_height: 4, | ||
validation: TexCompressionValidation::S3TC, | ||
}, | ||
TexCompression { | ||
format: TexFormat::CompressedRgbaS3tcDxt3, | ||
bytes_per_block: 16, | ||
block_width: 4, | ||
block_height: 4, | ||
validation: TexCompressionValidation::S3TC, | ||
}, | ||
TexCompression { | ||
format: TexFormat::CompressedRgbaS3tcDxt5, | ||
bytes_per_block: 16, | ||
block_width: 4, | ||
block_height: 4, | ||
validation: TexCompressionValidation::S3TC, | ||
}, | ||
]); | ||
} | ||
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fn name() -> &'static str { | ||
"WEBGL_compressed_texture_s3tc" | ||
} | ||
} |
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