mirror of
https://github.com/servo/servo.git
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Move prepare_pixels helper functions to canvas_traits
This commit is contained in:
Anthony Ramine
parent
86987ed75d
commit
adf363a208
12 changed files with 481 additions and 476 deletions
79
Cargo.lock
generated
79
Cargo.lock
generated
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@ -332,11 +332,11 @@ dependencies = [
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"cssparser 0.25.0 (registry+https://github.com/rust-lang/crates.io-index)",
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@ -348,14 +348,17 @@ dependencies = [
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name = "canvas_traits"
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version = "0.0.1"
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dependencies = [
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@ -399,7 +402,7 @@ name = "cgl"
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version = "0.2.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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@ -509,7 +512,7 @@ dependencies = [
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@ -1276,11 +1279,21 @@ dependencies = [
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[[package]]
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name = "gleam"
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version = "0.6.5"
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name = "gl_generator"
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version = "0.10.0"
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dependencies = [
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[[package]]
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name = "gleam"
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version = "0.6.7"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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@ -1333,10 +1346,10 @@ dependencies = [
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[[package]]
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name = "glx"
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version = "0.2.3"
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version = "0.2.4"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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@ -1798,7 +1811,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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@ -1911,6 +1924,11 @@ name = "khronos_api"
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version = "2.1.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "khronos_api"
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version = "3.0.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "layout"
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version = "0.0.1"
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@ -2094,7 +2112,7 @@ dependencies = [
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"euclid 0.19.0 (registry+https://github.com/rust-lang/crates.io-index)",
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@ -2126,7 +2144,7 @@ dependencies = [
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@ -2691,14 +2709,14 @@ dependencies = [
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[[package]]
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name = "offscreen_gl_context"
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version = "0.21.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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@ -3190,8 +3208,7 @@ dependencies = [
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@ -3217,7 +3234,7 @@ dependencies = [
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@ -3408,7 +3425,7 @@ dependencies = [
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@ -3525,9 +3542,9 @@ dependencies = [
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@ -4493,7 +4510,7 @@ dependencies = [
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@ -4707,6 +4724,11 @@ dependencies = [
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[[package]]
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@ -4849,13 +4871,14 @@ dependencies = [
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@ -4906,6 +4929,7 @@ dependencies = [
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@ -4957,7 +4981,7 @@ dependencies = [
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|
||||
"checksum objc-foundation 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "1add1b659e36c9607c7aab864a76c7a4c2760cd0cd2e120f3fb8b952c7e22bf9"
|
||||
"checksum objc_id 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e4730aa1c64d722db45f7ccc4113a3e2c465d018de6db4d3e7dfe031e8c8a297"
|
||||
"checksum offscreen_gl_context 0.21.0 (registry+https://github.com/rust-lang/crates.io-index)" = "95f2e39e3b8c95495cfec835b6fefee3f1e7d63c6f81d99796b4f9926c02db3c"
|
||||
"checksum offscreen_gl_context 0.21.1 (registry+https://github.com/rust-lang/crates.io-index)" = "5e86c90338962922a5f623128079b5c01d03784c8fd0809691f4eba233d69a1c"
|
||||
"checksum openssl 0.10.11 (registry+https://github.com/rust-lang/crates.io-index)" = "6c24d3508b4fb6da175c10baac54c578b33f09c89ae90c6fe9788b3b4768efdc"
|
||||
"checksum openssl-sys 0.9.35 (registry+https://github.com/rust-lang/crates.io-index)" = "912f301a749394e1025d9dcddef6106ddee9252620e6d0a0e5f8d0681de9b129"
|
||||
"checksum ordered-float 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e9a3c8db0fca1fdb34404f0b1286db252f23930b9f7a481e376c16c0d5c309d4"
|
||||
|
|
@ -5120,5 +5144,6 @@ dependencies = [
|
|||
"checksum xcb 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)" = "5e917a3f24142e9ff8be2414e36c649d47d6cc2ba81f16201cdef96e533e02de"
|
||||
"checksum xi-unicode 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "12ea8eda4b1eb72f02d148402e23832d56a33f55d8c1b2d5bcdde91d79d47cb1"
|
||||
"checksum xml-rs 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3c1cb601d29fe2c2ac60a2b2e5e293994d87a1f6fa9687a31a15270f909be9c2"
|
||||
"checksum xml-rs 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "541b12c998c5b56aa2b4e6f18f03664eef9a4fd0a246a55594efae6cc2d964b5"
|
||||
"checksum xml5ever 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ead952cf8bab253fb5cb56e1fff780747bbf7a7258fb0451afe645a166050b1f"
|
||||
"checksum zip 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "77ce0ceee93c995954a31f77903925a6a8bb094709445238e344f2107910e29e"
|
||||
|
|
|
|||
|
|
@ -14,14 +14,17 @@ path = "lib.rs"
|
|||
webgl_backtrace = []
|
||||
|
||||
[dependencies]
|
||||
byteorder = "1"
|
||||
cssparser = "0.25"
|
||||
euclid = "0.19"
|
||||
ipc-channel = "0.11"
|
||||
gleam = "0.6"
|
||||
gleam = "0.6.7"
|
||||
half = "1"
|
||||
lazy_static = "1"
|
||||
malloc_size_of = { path = "../malloc_size_of" }
|
||||
malloc_size_of_derive = { path = "../malloc_size_of_derive" }
|
||||
offscreen_gl_context = {version = "0.21", features = ["serde"]}
|
||||
pixels = {path = "../pixels"}
|
||||
serde = "1.0"
|
||||
serde_bytes = "0.10"
|
||||
servo_config = {path = "../config"}
|
||||
|
|
|
|||
|
|
@ -14,5 +14,6 @@ extern crate malloc_size_of_derive;
|
|||
extern crate serde;
|
||||
|
||||
pub mod canvas;
|
||||
#[macro_use]
|
||||
pub mod webgl;
|
||||
mod webgl_channel;
|
||||
|
|
|
|||
|
|
@ -2,10 +2,13 @@
|
|||
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
||||
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
||||
|
||||
use byteorder::{ByteOrder, NativeEndian, WriteBytesExt};
|
||||
use euclid::{Rect, Size2D};
|
||||
use gleam::gl;
|
||||
use half::f16;
|
||||
use ipc_channel::ipc::{IpcBytesReceiver, IpcBytesSender};
|
||||
use offscreen_gl_context::{GLContextAttributes, GLLimits};
|
||||
use pixels;
|
||||
use serde_bytes::ByteBuf;
|
||||
use std::borrow::Cow;
|
||||
use std::num::NonZeroU32;
|
||||
|
|
@ -650,3 +653,371 @@ pub fn is_gles() -> bool {
|
|||
// making assumptions based on platform
|
||||
cfg!(any(target_os = "android", target_os = "ios"))
|
||||
}
|
||||
|
||||
#[macro_export]
|
||||
macro_rules! gl_enums {
|
||||
($(pub enum $name:ident { $($variant:ident = $mod:ident::$constant:ident,)+ })*) => {
|
||||
$(
|
||||
#[derive(Clone, Copy, Debug, Eq, Hash, MallocSizeOf, PartialEq)]
|
||||
#[repr(u32)]
|
||||
pub enum $name { $($variant = $mod::$constant,)+ }
|
||||
|
||||
impl $name {
|
||||
pub fn from_gl_constant(constant: u32) -> Option<Self> {
|
||||
Some(match constant {
|
||||
$($mod::$constant => $name::$variant, )+
|
||||
_ => return None,
|
||||
})
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn as_gl_constant(&self) -> u32 {
|
||||
*self as u32
|
||||
}
|
||||
}
|
||||
)*
|
||||
}
|
||||
}
|
||||
|
||||
gl_enums! {
|
||||
pub enum TexFormat {
|
||||
DepthComponent = gl::DEPTH_COMPONENT,
|
||||
Alpha = gl::ALPHA,
|
||||
RGB = gl::RGB,
|
||||
RGBA = gl::RGBA,
|
||||
Luminance = gl::LUMINANCE,
|
||||
LuminanceAlpha = gl::LUMINANCE_ALPHA,
|
||||
}
|
||||
|
||||
pub enum TexDataType {
|
||||
UnsignedByte = gl::UNSIGNED_BYTE,
|
||||
UnsignedShort4444 = gl::UNSIGNED_SHORT_4_4_4_4,
|
||||
UnsignedShort5551 = gl::UNSIGNED_SHORT_5_5_5_1,
|
||||
UnsignedShort565 = gl::UNSIGNED_SHORT_5_6_5,
|
||||
Float = gl::FLOAT,
|
||||
HalfFloat = gl::HALF_FLOAT_OES,
|
||||
}
|
||||
}
|
||||
|
||||
impl TexFormat {
|
||||
/// Returns how many components does this format need. For example, RGBA
|
||||
/// needs 4 components, while RGB requires 3.
|
||||
pub fn components(&self) -> u32 {
|
||||
match *self {
|
||||
TexFormat::DepthComponent => 1,
|
||||
TexFormat::Alpha => 1,
|
||||
TexFormat::Luminance => 1,
|
||||
TexFormat::LuminanceAlpha => 2,
|
||||
TexFormat::RGB => 3,
|
||||
TexFormat::RGBA => 4,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl TexDataType {
|
||||
/// Returns the size in bytes of each element of data.
|
||||
pub fn element_size(&self) -> u32 {
|
||||
use self::*;
|
||||
match *self {
|
||||
TexDataType::UnsignedByte => 1,
|
||||
TexDataType::UnsignedShort4444 |
|
||||
TexDataType::UnsignedShort5551 |
|
||||
TexDataType::UnsignedShort565 => 2,
|
||||
TexDataType::Float => 4,
|
||||
TexDataType::HalfFloat => 2,
|
||||
}
|
||||
}
|
||||
|
||||
/// Returns how many components a single element may hold. For example, a
|
||||
/// UnsignedShort4444 holds four components, each with 4 bits of data.
|
||||
pub fn components_per_element(&self) -> u32 {
|
||||
match *self {
|
||||
TexDataType::UnsignedByte => 1,
|
||||
TexDataType::UnsignedShort565 => 3,
|
||||
TexDataType::UnsignedShort5551 => 4,
|
||||
TexDataType::UnsignedShort4444 => 4,
|
||||
TexDataType::Float => 1,
|
||||
TexDataType::HalfFloat => 1,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// Translates an image in rgba8 (red in the first byte) format to
|
||||
/// the format that was requested of TexImage.
|
||||
pub fn rgba8_image_to_tex_image_data(
|
||||
format: TexFormat,
|
||||
data_type: TexDataType,
|
||||
mut pixels: Vec<u8>,
|
||||
) -> Vec<u8> {
|
||||
// hint for vector allocation sizing.
|
||||
let pixel_count = pixels.len() / 4;
|
||||
|
||||
match (format, data_type) {
|
||||
(TexFormat::RGBA, TexDataType::UnsignedByte) => pixels,
|
||||
(TexFormat::RGB, TexDataType::UnsignedByte) => {
|
||||
for i in 0..pixel_count {
|
||||
let rgb = {
|
||||
let rgb = &pixels[i * 4..i * 4 + 3];
|
||||
[rgb[0], rgb[1], rgb[2]]
|
||||
};
|
||||
pixels[i * 3..i * 3 + 3].copy_from_slice(&rgb);
|
||||
}
|
||||
pixels.truncate(pixel_count * 3);
|
||||
pixels
|
||||
},
|
||||
(TexFormat::Alpha, TexDataType::UnsignedByte) => {
|
||||
for i in 0..pixel_count {
|
||||
let p = pixels[i * 4 + 3];
|
||||
pixels[i] = p;
|
||||
}
|
||||
pixels.truncate(pixel_count);
|
||||
pixels
|
||||
},
|
||||
(TexFormat::Luminance, TexDataType::UnsignedByte) => {
|
||||
for i in 0..pixel_count {
|
||||
let p = pixels[i * 4];
|
||||
pixels[i] = p;
|
||||
}
|
||||
pixels.truncate(pixel_count);
|
||||
pixels
|
||||
},
|
||||
(TexFormat::LuminanceAlpha, TexDataType::UnsignedByte) => {
|
||||
for i in 0..pixel_count {
|
||||
let (lum, a) = {
|
||||
let rgba = &pixels[i * 4..i * 4 + 4];
|
||||
(rgba[0], rgba[3])
|
||||
};
|
||||
pixels[i * 2] = lum;
|
||||
pixels[i * 2 + 1] = a;
|
||||
}
|
||||
pixels.truncate(pixel_count * 2);
|
||||
pixels
|
||||
},
|
||||
(TexFormat::RGBA, TexDataType::UnsignedShort4444) => {
|
||||
for i in 0..pixel_count {
|
||||
let p = {
|
||||
let rgba = &pixels[i * 4..i * 4 + 4];
|
||||
(rgba[0] as u16 & 0xf0) << 8 |
|
||||
(rgba[1] as u16 & 0xf0) << 4 |
|
||||
(rgba[2] as u16 & 0xf0) |
|
||||
(rgba[3] as u16 & 0xf0) >> 4
|
||||
};
|
||||
NativeEndian::write_u16(&mut pixels[i * 2..i * 2 + 2], p);
|
||||
}
|
||||
pixels.truncate(pixel_count * 2);
|
||||
pixels
|
||||
},
|
||||
(TexFormat::RGBA, TexDataType::UnsignedShort5551) => {
|
||||
for i in 0..pixel_count {
|
||||
let p = {
|
||||
let rgba = &pixels[i * 4..i * 4 + 4];
|
||||
(rgba[0] as u16 & 0xf8) << 8 |
|
||||
(rgba[1] as u16 & 0xf8) << 3 |
|
||||
(rgba[2] as u16 & 0xf8) >> 2 |
|
||||
(rgba[3] as u16) >> 7
|
||||
};
|
||||
NativeEndian::write_u16(&mut pixels[i * 2..i * 2 + 2], p);
|
||||
}
|
||||
pixels.truncate(pixel_count * 2);
|
||||
pixels
|
||||
},
|
||||
(TexFormat::RGB, TexDataType::UnsignedShort565) => {
|
||||
for i in 0..pixel_count {
|
||||
let p = {
|
||||
let rgb = &pixels[i * 4..i * 4 + 3];
|
||||
(rgb[0] as u16 & 0xf8) << 8 |
|
||||
(rgb[1] as u16 & 0xfc) << 3 |
|
||||
(rgb[2] as u16 & 0xf8) >> 3
|
||||
};
|
||||
NativeEndian::write_u16(&mut pixels[i * 2..i * 2 + 2], p);
|
||||
}
|
||||
pixels.truncate(pixel_count * 2);
|
||||
pixels
|
||||
},
|
||||
(TexFormat::RGBA, TexDataType::Float) => {
|
||||
let mut rgbaf32 = Vec::<u8>::with_capacity(pixel_count * 16);
|
||||
for rgba8 in pixels.chunks(4) {
|
||||
rgbaf32.write_f32::<NativeEndian>(rgba8[0] as f32).unwrap();
|
||||
rgbaf32.write_f32::<NativeEndian>(rgba8[1] as f32).unwrap();
|
||||
rgbaf32.write_f32::<NativeEndian>(rgba8[2] as f32).unwrap();
|
||||
rgbaf32.write_f32::<NativeEndian>(rgba8[3] as f32).unwrap();
|
||||
}
|
||||
rgbaf32
|
||||
},
|
||||
|
||||
(TexFormat::RGB, TexDataType::Float) => {
|
||||
let mut rgbf32 = Vec::<u8>::with_capacity(pixel_count * 12);
|
||||
for rgba8 in pixels.chunks(4) {
|
||||
rgbf32.write_f32::<NativeEndian>(rgba8[0] as f32).unwrap();
|
||||
rgbf32.write_f32::<NativeEndian>(rgba8[1] as f32).unwrap();
|
||||
rgbf32.write_f32::<NativeEndian>(rgba8[2] as f32).unwrap();
|
||||
}
|
||||
rgbf32
|
||||
},
|
||||
|
||||
(TexFormat::Alpha, TexDataType::Float) => {
|
||||
for rgba8 in pixels.chunks_mut(4) {
|
||||
let p = rgba8[3] as f32;
|
||||
NativeEndian::write_f32(rgba8, p);
|
||||
}
|
||||
pixels
|
||||
},
|
||||
|
||||
(TexFormat::Luminance, TexDataType::Float) => {
|
||||
for rgba8 in pixels.chunks_mut(4) {
|
||||
let p = rgba8[0] as f32;
|
||||
NativeEndian::write_f32(rgba8, p);
|
||||
}
|
||||
pixels
|
||||
},
|
||||
|
||||
(TexFormat::LuminanceAlpha, TexDataType::Float) => {
|
||||
let mut data = Vec::<u8>::with_capacity(pixel_count * 8);
|
||||
for rgba8 in pixels.chunks(4) {
|
||||
data.write_f32::<NativeEndian>(rgba8[0] as f32).unwrap();
|
||||
data.write_f32::<NativeEndian>(rgba8[3] as f32).unwrap();
|
||||
}
|
||||
data
|
||||
},
|
||||
|
||||
(TexFormat::RGBA, TexDataType::HalfFloat) => {
|
||||
let mut rgbaf16 = Vec::<u8>::with_capacity(pixel_count * 8);
|
||||
for rgba8 in pixels.chunks(4) {
|
||||
rgbaf16
|
||||
.write_u16::<NativeEndian>(f16::from_f32(rgba8[0] as f32).as_bits())
|
||||
.unwrap();
|
||||
rgbaf16
|
||||
.write_u16::<NativeEndian>(f16::from_f32(rgba8[1] as f32).as_bits())
|
||||
.unwrap();
|
||||
rgbaf16
|
||||
.write_u16::<NativeEndian>(f16::from_f32(rgba8[2] as f32).as_bits())
|
||||
.unwrap();
|
||||
rgbaf16
|
||||
.write_u16::<NativeEndian>(f16::from_f32(rgba8[3] as f32).as_bits())
|
||||
.unwrap();
|
||||
}
|
||||
rgbaf16
|
||||
},
|
||||
|
||||
(TexFormat::RGB, TexDataType::HalfFloat) => {
|
||||
let mut rgbf16 = Vec::<u8>::with_capacity(pixel_count * 6);
|
||||
for rgba8 in pixels.chunks(4) {
|
||||
rgbf16
|
||||
.write_u16::<NativeEndian>(f16::from_f32(rgba8[0] as f32).as_bits())
|
||||
.unwrap();
|
||||
rgbf16
|
||||
.write_u16::<NativeEndian>(f16::from_f32(rgba8[1] as f32).as_bits())
|
||||
.unwrap();
|
||||
rgbf16
|
||||
.write_u16::<NativeEndian>(f16::from_f32(rgba8[2] as f32).as_bits())
|
||||
.unwrap();
|
||||
}
|
||||
rgbf16
|
||||
},
|
||||
(TexFormat::Alpha, TexDataType::HalfFloat) => {
|
||||
for i in 0..pixel_count {
|
||||
let p = f16::from_f32(pixels[i * 4 + 3] as f32).as_bits();
|
||||
NativeEndian::write_u16(&mut pixels[i * 2..i * 2 + 2], p);
|
||||
}
|
||||
pixels.truncate(pixel_count * 2);
|
||||
pixels
|
||||
},
|
||||
(TexFormat::Luminance, TexDataType::HalfFloat) => {
|
||||
for i in 0..pixel_count {
|
||||
let p = f16::from_f32(pixels[i * 4] as f32).as_bits();
|
||||
NativeEndian::write_u16(&mut pixels[i * 2..i * 2 + 2], p);
|
||||
}
|
||||
pixels.truncate(pixel_count * 2);
|
||||
pixels
|
||||
},
|
||||
(TexFormat::LuminanceAlpha, TexDataType::HalfFloat) => {
|
||||
for rgba8 in pixels.chunks_mut(4) {
|
||||
let lum = f16::from_f32(rgba8[0] as f32).as_bits();
|
||||
let a = f16::from_f32(rgba8[3] as f32).as_bits();
|
||||
NativeEndian::write_u16(&mut rgba8[0..2], lum);
|
||||
NativeEndian::write_u16(&mut rgba8[2..4], a);
|
||||
}
|
||||
pixels
|
||||
},
|
||||
|
||||
// Validation should have ensured that we only hit the
|
||||
// above cases, but we haven't turned the (format, type)
|
||||
// into an enum yet so there's a default case here.
|
||||
_ => unreachable!("Unsupported formats {:?} {:?}", format, data_type),
|
||||
}
|
||||
}
|
||||
|
||||
pub fn premultiply_inplace(format: TexFormat, data_type: TexDataType, pixels: &mut [u8]) {
|
||||
match (format, data_type) {
|
||||
(TexFormat::RGBA, TexDataType::UnsignedByte) => {
|
||||
pixels::premultiply_inplace(pixels);
|
||||
},
|
||||
(TexFormat::LuminanceAlpha, TexDataType::UnsignedByte) => {
|
||||
for la in pixels.chunks_mut(2) {
|
||||
la[0] = pixels::multiply_u8_color(la[0], la[1]);
|
||||
}
|
||||
},
|
||||
(TexFormat::RGBA, TexDataType::UnsignedShort5551) => {
|
||||
for rgba in pixels.chunks_mut(2) {
|
||||
if NativeEndian::read_u16(rgba) & 1 == 0 {
|
||||
NativeEndian::write_u16(rgba, 0);
|
||||
}
|
||||
}
|
||||
},
|
||||
(TexFormat::RGBA, TexDataType::UnsignedShort4444) => {
|
||||
for rgba in pixels.chunks_mut(2) {
|
||||
let pix = NativeEndian::read_u16(rgba);
|
||||
let extend_to_8_bits = |val| (val | val << 4) as u8;
|
||||
let r = extend_to_8_bits(pix >> 12 & 0x0f);
|
||||
let g = extend_to_8_bits(pix >> 8 & 0x0f);
|
||||
let b = extend_to_8_bits(pix >> 4 & 0x0f);
|
||||
let a = extend_to_8_bits(pix & 0x0f);
|
||||
NativeEndian::write_u16(
|
||||
rgba,
|
||||
((pixels::multiply_u8_color(r, a) & 0xf0) as u16) << 8 |
|
||||
((pixels::multiply_u8_color(g, a) & 0xf0) as u16) << 4 |
|
||||
((pixels::multiply_u8_color(b, a) & 0xf0) as u16) |
|
||||
((a & 0x0f) as u16),
|
||||
);
|
||||
}
|
||||
},
|
||||
// Other formats don't have alpha, so return their data untouched.
|
||||
_ => {},
|
||||
}
|
||||
}
|
||||
|
||||
pub fn unmultiply_inplace(pixels: &mut [u8]) {
|
||||
for rgba in pixels.chunks_mut(4) {
|
||||
let a = (rgba[3] as f32) / 255.0;
|
||||
rgba[0] = (rgba[0] as f32 / a) as u8;
|
||||
rgba[1] = (rgba[1] as f32 / a) as u8;
|
||||
rgba[2] = (rgba[2] as f32 / a) as u8;
|
||||
}
|
||||
}
|
||||
|
||||
/// Flips the pixels in the Vec on the Y axis.
|
||||
pub fn flip_pixels_y(
|
||||
internal_format: TexFormat,
|
||||
data_type: TexDataType,
|
||||
width: usize,
|
||||
height: usize,
|
||||
unpacking_alignment: usize,
|
||||
pixels: Vec<u8>,
|
||||
) -> Vec<u8> {
|
||||
let cpp = (data_type.element_size() * internal_format.components() /
|
||||
data_type.components_per_element()) as usize;
|
||||
|
||||
let stride = (width * cpp + unpacking_alignment - 1) & !(unpacking_alignment - 1);
|
||||
|
||||
let mut flipped = Vec::<u8>::with_capacity(pixels.len());
|
||||
|
||||
for y in 0..height {
|
||||
let flipped_y = height - 1 - y;
|
||||
let start = flipped_y * stride;
|
||||
|
||||
flipped.extend_from_slice(&pixels[start..(start + width * cpp)]);
|
||||
flipped.extend(vec![0u8; stride - width * cpp]);
|
||||
}
|
||||
|
||||
flipped
|
||||
}
|
||||
|
|
|
|||
|
|
@ -53,7 +53,6 @@ enum-iterator = "0.2.0"
|
|||
euclid = "0.19"
|
||||
fnv = "1.0"
|
||||
gleam = "0.6"
|
||||
half = "1.0"
|
||||
headers-core = "0.0.1"
|
||||
headers-ext = "0.0.3"
|
||||
html5ever = "0.22"
|
||||
|
|
|
|||
|
|
@ -34,11 +34,11 @@ use canvas_traits::canvas::{
|
|||
CanvasGradientStop, CanvasId, LinearGradientStyle, RadialGradientStyle,
|
||||
};
|
||||
use canvas_traits::canvas::{CompositionOrBlending, LineCapStyle, LineJoinStyle, RepetitionStyle};
|
||||
use canvas_traits::webgl::{ActiveAttribInfo, ActiveUniformInfo, WebGLBufferId, WebGLChan};
|
||||
use canvas_traits::webgl::{WebGLContextShareMode, WebGLError, WebGLFramebufferId, WebGLMsgSender};
|
||||
use canvas_traits::webgl::{WebGLPipeline, WebGLProgramId, WebGLReceiver, WebGLRenderbufferId};
|
||||
use canvas_traits::webgl::{WebGLSLVersion, WebGLSender, WebGLShaderId, WebGLTextureId};
|
||||
use canvas_traits::webgl::{WebGLVersion, WebGLVertexArrayId};
|
||||
use canvas_traits::webgl::{ActiveAttribInfo, ActiveUniformInfo, TexDataType, TexFormat};
|
||||
use canvas_traits::webgl::{WebGLBufferId, WebGLChan, WebGLContextShareMode, WebGLError};
|
||||
use canvas_traits::webgl::{WebGLFramebufferId, WebGLMsgSender, WebGLPipeline, WebGLProgramId};
|
||||
use canvas_traits::webgl::{WebGLReceiver, WebGLRenderbufferId, WebGLSLVersion, WebGLSender};
|
||||
use canvas_traits::webgl::{WebGLShaderId, WebGLTextureId, WebGLVersion, WebGLVertexArrayId};
|
||||
use crate::dom::bindings::cell::DomRefCell;
|
||||
use crate::dom::bindings::error::Error;
|
||||
use crate::dom::bindings::refcounted::{Trusted, TrustedPromise};
|
||||
|
|
@ -148,6 +148,8 @@ unsafe_no_jsmanaged_fields!(Reflector);
|
|||
|
||||
unsafe_no_jsmanaged_fields!(Duration);
|
||||
|
||||
unsafe_no_jsmanaged_fields!(TexDataType, TexFormat);
|
||||
|
||||
/// Trace a `JSVal`.
|
||||
pub fn trace_jsval(tracer: *mut JSTracer, description: &str, val: &Heap<JSVal>) {
|
||||
unsafe {
|
||||
|
|
|
|||
|
|
@ -2,9 +2,9 @@
|
|||
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
||||
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
||||
|
||||
use super::types::{TexDataType, TexFormat, TexImageTarget};
|
||||
use super::types::TexImageTarget;
|
||||
use super::WebGLValidator;
|
||||
use canvas_traits::webgl::WebGLError::*;
|
||||
use canvas_traits::webgl::{TexDataType, TexFormat, WebGLError::*};
|
||||
use crate::dom::bindings::root::DomRoot;
|
||||
use crate::dom::webglrenderingcontext::WebGLRenderingContext;
|
||||
use crate::dom::webgltexture::WebGLTexture;
|
||||
|
|
|
|||
|
|
@ -2,45 +2,19 @@
|
|||
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
||||
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
||||
|
||||
use crate::dom::bindings::codegen::Bindings::OESTextureHalfFloatBinding::OESTextureHalfFloatConstants;
|
||||
use crate::dom::bindings::codegen::Bindings::WebGLRenderingContextBinding::WebGLRenderingContextConstants as constants;
|
||||
use canvas_traits::gl_enums;
|
||||
use crate::dom::bindings::codegen::Bindings::WebGLRenderingContextBinding::WebGLRenderingContextConstants;
|
||||
|
||||
/// This macro creates type-safe wrappers for WebGL types, associating variants
|
||||
/// with gl constants.
|
||||
macro_rules! type_safe_wrapper {
|
||||
($name: ident, $($variant:ident => $mod:ident::$constant:ident, )+) => {
|
||||
#[derive(Clone, Copy, Debug, Eq, Hash, JSTraceable, MallocSizeOf, PartialEq)]
|
||||
#[repr(u32)]
|
||||
pub enum $name {
|
||||
$(
|
||||
$variant = $mod::$constant,
|
||||
)+
|
||||
gl_enums! {
|
||||
pub enum TexImageTarget {
|
||||
Texture2D = WebGLRenderingContextConstants::TEXTURE_2D,
|
||||
CubeMapPositiveX = WebGLRenderingContextConstants::TEXTURE_CUBE_MAP_POSITIVE_X,
|
||||
CubeMapNegativeX = WebGLRenderingContextConstants::TEXTURE_CUBE_MAP_NEGATIVE_X,
|
||||
CubeMapPositiveY = WebGLRenderingContextConstants::TEXTURE_CUBE_MAP_POSITIVE_Y,
|
||||
CubeMapNegativeY = WebGLRenderingContextConstants::TEXTURE_CUBE_MAP_NEGATIVE_Y,
|
||||
CubeMapPositiveZ = WebGLRenderingContextConstants::TEXTURE_CUBE_MAP_POSITIVE_Z,
|
||||
CubeMapNegativeZ = WebGLRenderingContextConstants::TEXTURE_CUBE_MAP_NEGATIVE_Z,
|
||||
}
|
||||
|
||||
impl $name {
|
||||
pub fn from_gl_constant(constant: u32) -> Option<Self> {
|
||||
Some(match constant {
|
||||
$($mod::$constant => $name::$variant, )+
|
||||
_ => return None,
|
||||
})
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn as_gl_constant(&self) -> u32 {
|
||||
*self as u32
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
type_safe_wrapper! { TexImageTarget,
|
||||
Texture2D => constants::TEXTURE_2D,
|
||||
CubeMapPositiveX => constants::TEXTURE_CUBE_MAP_POSITIVE_X,
|
||||
CubeMapNegativeX => constants::TEXTURE_CUBE_MAP_NEGATIVE_X,
|
||||
CubeMapPositiveY => constants::TEXTURE_CUBE_MAP_POSITIVE_Y,
|
||||
CubeMapNegativeY => constants::TEXTURE_CUBE_MAP_NEGATIVE_Y,
|
||||
CubeMapPositiveZ => constants::TEXTURE_CUBE_MAP_POSITIVE_Z,
|
||||
CubeMapNegativeZ => constants::TEXTURE_CUBE_MAP_NEGATIVE_Z,
|
||||
}
|
||||
|
||||
impl TexImageTarget {
|
||||
|
|
@ -51,64 +25,3 @@ impl TexImageTarget {
|
|||
}
|
||||
}
|
||||
}
|
||||
|
||||
type_safe_wrapper! { TexDataType,
|
||||
UnsignedByte => constants::UNSIGNED_BYTE,
|
||||
UnsignedShort4444 => constants::UNSIGNED_SHORT_4_4_4_4,
|
||||
UnsignedShort5551 => constants::UNSIGNED_SHORT_5_5_5_1,
|
||||
UnsignedShort565 => constants::UNSIGNED_SHORT_5_6_5,
|
||||
Float => constants::FLOAT,
|
||||
HalfFloat => OESTextureHalfFloatConstants::HALF_FLOAT_OES,
|
||||
}
|
||||
|
||||
impl TexDataType {
|
||||
/// Returns the size in bytes of each element of data.
|
||||
pub fn element_size(&self) -> u32 {
|
||||
use self::TexDataType::*;
|
||||
match *self {
|
||||
UnsignedByte => 1,
|
||||
UnsignedShort4444 | UnsignedShort5551 | UnsignedShort565 => 2,
|
||||
Float => 4,
|
||||
HalfFloat => 2,
|
||||
}
|
||||
}
|
||||
|
||||
/// Returns how many components a single element may hold. For example, a
|
||||
/// UnsignedShort4444 holds four components, each with 4 bits of data.
|
||||
pub fn components_per_element(&self) -> u32 {
|
||||
use self::TexDataType::*;
|
||||
match *self {
|
||||
UnsignedByte => 1,
|
||||
UnsignedShort565 => 3,
|
||||
UnsignedShort5551 => 4,
|
||||
UnsignedShort4444 => 4,
|
||||
Float => 1,
|
||||
HalfFloat => 1,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
type_safe_wrapper! { TexFormat,
|
||||
DepthComponent => constants::DEPTH_COMPONENT,
|
||||
Alpha => constants::ALPHA,
|
||||
RGB => constants::RGB,
|
||||
RGBA => constants::RGBA,
|
||||
Luminance => constants::LUMINANCE,
|
||||
LuminanceAlpha => constants::LUMINANCE_ALPHA,
|
||||
}
|
||||
|
||||
impl TexFormat {
|
||||
/// Returns how many components does this format need. For example, RGBA
|
||||
/// needs 4 components, while RGB requires 3.
|
||||
pub fn components(&self) -> u32 {
|
||||
use self::TexFormat::*;
|
||||
match *self {
|
||||
DepthComponent => 1,
|
||||
Alpha => 1,
|
||||
Luminance => 1,
|
||||
LuminanceAlpha => 2,
|
||||
RGB => 3,
|
||||
RGBA => 4,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -4,13 +4,13 @@
|
|||
|
||||
#[cfg(feature = "webgl_backtrace")]
|
||||
use backtrace::Backtrace;
|
||||
use byteorder::{ByteOrder, NativeEndian, WriteBytesExt};
|
||||
use canvas_traits::webgl::WebGLError::*;
|
||||
use canvas_traits::webgl::{webgl_channel, WebGLVersion, WebVRCommand};
|
||||
use canvas_traits::webgl::{DOMToTextureCommand, Parameter, WebGLCommandBacktrace};
|
||||
use canvas_traits::webgl::{TexParameter, WebGLCommand, WebGLContextShareMode, WebGLError};
|
||||
use canvas_traits::webgl::{WebGLFramebufferBindingRequest, WebGLMsg, WebGLMsgSender};
|
||||
use canvas_traits::webgl::{WebGLProgramId, WebGLResult, WebGLSLVersion, WebGLSender};
|
||||
use canvas_traits::webgl::{
|
||||
self, webgl_channel, DOMToTextureCommand, Parameter, TexDataType, TexFormat, TexParameter,
|
||||
WebGLCommand, WebGLCommandBacktrace, WebGLContextShareMode, WebGLError,
|
||||
WebGLFramebufferBindingRequest, WebGLMsg, WebGLMsgSender, WebGLProgramId, WebGLResult,
|
||||
WebGLSLVersion, WebGLSender, WebGLVersion, WebVRCommand,
|
||||
};
|
||||
use crate::dom::bindings::codegen::Bindings::ANGLEInstancedArraysBinding::ANGLEInstancedArraysConstants;
|
||||
use crate::dom::bindings::codegen::Bindings::EXTBlendMinmaxBinding::EXTBlendMinmaxConstants;
|
||||
use crate::dom::bindings::codegen::Bindings::OESVertexArrayObjectBinding::OESVertexArrayObjectConstants;
|
||||
|
|
@ -38,7 +38,7 @@ use crate::dom::webgl_validations::tex_image_2d::{
|
|||
CommonTexImage2DValidator, CommonTexImage2DValidatorResult,
|
||||
};
|
||||
use crate::dom::webgl_validations::tex_image_2d::{TexImage2DValidator, TexImage2DValidatorResult};
|
||||
use crate::dom::webgl_validations::types::{TexDataType, TexFormat, TexImageTarget};
|
||||
use crate::dom::webgl_validations::types::TexImageTarget;
|
||||
use crate::dom::webgl_validations::WebGLValidator;
|
||||
use crate::dom::webglactiveinfo::WebGLActiveInfo;
|
||||
use crate::dom::webglbuffer::WebGLBuffer;
|
||||
|
|
@ -57,7 +57,6 @@ use crate::dom::webglvertexarrayobjectoes::WebGLVertexArrayObjectOES;
|
|||
use crate::dom::window::Window;
|
||||
use dom_struct::dom_struct;
|
||||
use euclid::{Point2D, Rect, Size2D};
|
||||
use half::f16;
|
||||
use ipc_channel::ipc;
|
||||
use js::jsapi::{JSContext, JSObject, Type};
|
||||
use js::jsval::{BooleanValue, DoubleValue, Int32Value, JSVal, UInt32Value};
|
||||
|
|
@ -70,6 +69,7 @@ use js::typedarray::{TypedArray, TypedArrayElementCreator};
|
|||
use net_traits::image::base::PixelFormat;
|
||||
use net_traits::image_cache::ImageResponse;
|
||||
use offscreen_gl_context::{GLContextAttributes, GLLimits};
|
||||
use pixels;
|
||||
use script_layout_interface::HTMLCanvasDataSource;
|
||||
use serde::{Deserialize, Serialize};
|
||||
use servo_config::prefs::PREFS;
|
||||
|
|
@ -638,92 +638,6 @@ impl WebGLRenderingContext {
|
|||
}
|
||||
}
|
||||
|
||||
/// Flips the pixels in the Vec on the Y axis if
|
||||
/// UNPACK_FLIP_Y_WEBGL is currently enabled.
|
||||
fn flip_teximage_y(
|
||||
&self,
|
||||
pixels: Vec<u8>,
|
||||
internal_format: TexFormat,
|
||||
data_type: TexDataType,
|
||||
width: usize,
|
||||
height: usize,
|
||||
unpacking_alignment: usize,
|
||||
) -> Vec<u8> {
|
||||
if !self
|
||||
.texture_unpacking_settings
|
||||
.get()
|
||||
.contains(TextureUnpacking::FLIP_Y_AXIS)
|
||||
{
|
||||
return pixels;
|
||||
}
|
||||
|
||||
let cpp = (data_type.element_size() * internal_format.components() /
|
||||
data_type.components_per_element()) as usize;
|
||||
|
||||
let stride = (width * cpp + unpacking_alignment - 1) & !(unpacking_alignment - 1);
|
||||
|
||||
let mut flipped = Vec::<u8>::with_capacity(pixels.len());
|
||||
|
||||
for y in 0..height {
|
||||
let flipped_y = height - 1 - y;
|
||||
let start = flipped_y * stride;
|
||||
|
||||
flipped.extend_from_slice(&pixels[start..(start + width * cpp)]);
|
||||
flipped.extend(vec![0u8; stride - width * cpp]);
|
||||
}
|
||||
|
||||
flipped
|
||||
}
|
||||
|
||||
/// Performs premultiplication of the pixels if
|
||||
/// UNPACK_PREMULTIPLY_ALPHA_WEBGL is currently enabled.
|
||||
fn premultiply_pixels(&self, format: TexFormat, data_type: TexDataType, pixels: &mut [u8]) {
|
||||
if !self
|
||||
.texture_unpacking_settings
|
||||
.get()
|
||||
.contains(TextureUnpacking::PREMULTIPLY_ALPHA)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
match (format, data_type) {
|
||||
(TexFormat::RGBA, TexDataType::UnsignedByte) => {
|
||||
pixels::premultiply_inplace(pixels);
|
||||
},
|
||||
(TexFormat::LuminanceAlpha, TexDataType::UnsignedByte) => {
|
||||
for la in pixels.chunks_mut(2) {
|
||||
la[0] = pixels::multiply_u8_color(la[0], la[1]);
|
||||
}
|
||||
},
|
||||
(TexFormat::RGBA, TexDataType::UnsignedShort5551) => {
|
||||
for rgba in pixels.chunks_mut(2) {
|
||||
if NativeEndian::read_u16(rgba) & 1 == 0 {
|
||||
NativeEndian::write_u16(rgba, 0);
|
||||
}
|
||||
}
|
||||
},
|
||||
(TexFormat::RGBA, TexDataType::UnsignedShort4444) => {
|
||||
for rgba in pixels.chunks_mut(2) {
|
||||
let pix = NativeEndian::read_u16(rgba);
|
||||
let extend_to_8_bits = |val| (val | val << 4) as u8;
|
||||
let r = extend_to_8_bits(pix >> 12 & 0x0f);
|
||||
let g = extend_to_8_bits(pix >> 8 & 0x0f);
|
||||
let b = extend_to_8_bits(pix >> 4 & 0x0f);
|
||||
let a = extend_to_8_bits(pix & 0x0f);
|
||||
NativeEndian::write_u16(
|
||||
rgba,
|
||||
((pixels::multiply_u8_color(r, a) & 0xf0) as u16) << 8 |
|
||||
((pixels::multiply_u8_color(g, a) & 0xf0) as u16) << 4 |
|
||||
((pixels::multiply_u8_color(b, a) & 0xf0) as u16) |
|
||||
((a & 0x0f) as u16),
|
||||
);
|
||||
}
|
||||
},
|
||||
// Other formats don't have alpha, so return their data untouched.
|
||||
_ => {},
|
||||
}
|
||||
}
|
||||
|
||||
fn prepare_pixels(
|
||||
&self,
|
||||
internal_format: TexFormat,
|
||||
|
|
@ -735,34 +649,36 @@ impl WebGLRenderingContext {
|
|||
source_from_image_or_canvas: bool,
|
||||
mut pixels: Vec<u8>,
|
||||
) -> Vec<u8> {
|
||||
let dest_premultiply = self
|
||||
.texture_unpacking_settings
|
||||
.get()
|
||||
.contains(TextureUnpacking::PREMULTIPLY_ALPHA);
|
||||
let settings = self.texture_unpacking_settings.get();
|
||||
let dest_premultiply = settings.contains(TextureUnpacking::PREMULTIPLY_ALPHA);
|
||||
if !source_premultiplied && dest_premultiply {
|
||||
if source_from_image_or_canvas {
|
||||
// When the pixels come from image or canvas or imagedata, use RGBA8 format
|
||||
self.premultiply_pixels(TexFormat::RGBA, TexDataType::UnsignedByte, &mut pixels);
|
||||
webgl::premultiply_inplace(TexFormat::RGBA, TexDataType::UnsignedByte, &mut pixels);
|
||||
} else {
|
||||
self.premultiply_pixels(internal_format, data_type, &mut pixels);
|
||||
webgl::premultiply_inplace(internal_format, data_type, &mut pixels);
|
||||
}
|
||||
} else if source_premultiplied && !dest_premultiply {
|
||||
remove_premultiplied_alpha(&mut pixels);
|
||||
webgl::unmultiply_inplace(&mut pixels);
|
||||
}
|
||||
|
||||
if source_from_image_or_canvas {
|
||||
pixels = rgba8_image_to_tex_image_data(internal_format, data_type, pixels);
|
||||
pixels = webgl::rgba8_image_to_tex_image_data(internal_format, data_type, pixels);
|
||||
}
|
||||
|
||||
if settings.contains(TextureUnpacking::FLIP_Y_AXIS) {
|
||||
// FINISHME: Consider doing premultiply and flip in a single mutable Vec.
|
||||
self.flip_teximage_y(
|
||||
pixels,
|
||||
pixels = webgl::flip_pixels_y(
|
||||
internal_format,
|
||||
data_type,
|
||||
width as usize,
|
||||
height as usize,
|
||||
unpacking_alignment as usize,
|
||||
)
|
||||
pixels,
|
||||
);
|
||||
}
|
||||
|
||||
pixels
|
||||
}
|
||||
|
||||
fn tex_image_2d(
|
||||
|
|
@ -4328,234 +4244,6 @@ impl TextureUnit {
|
|||
}
|
||||
}
|
||||
|
||||
// Remove premultiplied alpha.
|
||||
// This is only called when texImage2D is called using a canvas2d source and
|
||||
// UNPACK_PREMULTIPLY_ALPHA_WEBGL is disabled. Pixels got from a canvas2D source
|
||||
// are always RGBA8 with premultiplied alpha, so we don't have to worry about
|
||||
// additional formats as happens in the premultiply_pixels method.
|
||||
fn remove_premultiplied_alpha(pixels: &mut [u8]) {
|
||||
for rgba in pixels.chunks_mut(4) {
|
||||
let a = (rgba[3] as f32) / 255.0;
|
||||
rgba[0] = (rgba[0] as f32 / a) as u8;
|
||||
rgba[1] = (rgba[1] as f32 / a) as u8;
|
||||
rgba[2] = (rgba[2] as f32 / a) as u8;
|
||||
}
|
||||
}
|
||||
|
||||
/// Translates an image in rgba8 (red in the first byte) format to
|
||||
/// the format that was requested of TexImage.
|
||||
///
|
||||
/// From the WebGL 1.0 spec, 5.14.8:
|
||||
///
|
||||
/// "The source image data is conceptually first converted to
|
||||
/// the data type and format specified by the format and type
|
||||
/// arguments, and then transferred to the WebGL
|
||||
/// implementation. If a packed pixel format is specified
|
||||
/// which would imply loss of bits of precision from the image
|
||||
/// data, this loss of precision must occur."
|
||||
fn rgba8_image_to_tex_image_data(
|
||||
format: TexFormat,
|
||||
data_type: TexDataType,
|
||||
mut pixels: Vec<u8>,
|
||||
) -> Vec<u8> {
|
||||
// hint for vector allocation sizing.
|
||||
let pixel_count = pixels.len() / 4;
|
||||
|
||||
match (format, data_type) {
|
||||
(TexFormat::RGBA, TexDataType::UnsignedByte) => pixels,
|
||||
(TexFormat::RGB, TexDataType::UnsignedByte) => {
|
||||
for i in 0..pixel_count {
|
||||
let rgb = {
|
||||
let rgb = &pixels[i * 4..i * 4 + 3];
|
||||
[rgb[0], rgb[1], rgb[2]]
|
||||
};
|
||||
pixels[i * 3..i * 3 + 3].copy_from_slice(&rgb);
|
||||
}
|
||||
pixels.truncate(pixel_count * 3);
|
||||
pixels
|
||||
},
|
||||
(TexFormat::Alpha, TexDataType::UnsignedByte) => {
|
||||
for i in 0..pixel_count {
|
||||
let p = pixels[i * 4 + 3];
|
||||
pixels[i] = p;
|
||||
}
|
||||
pixels.truncate(pixel_count);
|
||||
pixels
|
||||
},
|
||||
(TexFormat::Luminance, TexDataType::UnsignedByte) => {
|
||||
for i in 0..pixel_count {
|
||||
let p = pixels[i * 4];
|
||||
pixels[i] = p;
|
||||
}
|
||||
pixels.truncate(pixel_count);
|
||||
pixels
|
||||
},
|
||||
(TexFormat::LuminanceAlpha, TexDataType::UnsignedByte) => {
|
||||
for i in 0..pixel_count {
|
||||
let (lum, a) = {
|
||||
let rgba = &pixels[i * 4..i * 4 + 4];
|
||||
(rgba[0], rgba[3])
|
||||
};
|
||||
pixels[i * 2] = lum;
|
||||
pixels[i * 2 + 1] = a;
|
||||
}
|
||||
pixels.truncate(pixel_count * 2);
|
||||
pixels
|
||||
},
|
||||
(TexFormat::RGBA, TexDataType::UnsignedShort4444) => {
|
||||
for i in 0..pixel_count {
|
||||
let p = {
|
||||
let rgba = &pixels[i * 4..i * 4 + 4];
|
||||
(rgba[0] as u16 & 0xf0) << 8 |
|
||||
(rgba[1] as u16 & 0xf0) << 4 |
|
||||
(rgba[2] as u16 & 0xf0) |
|
||||
(rgba[3] as u16 & 0xf0) >> 4
|
||||
};
|
||||
NativeEndian::write_u16(&mut pixels[i * 2..i * 2 + 2], p);
|
||||
}
|
||||
pixels.truncate(pixel_count * 2);
|
||||
pixels
|
||||
},
|
||||
(TexFormat::RGBA, TexDataType::UnsignedShort5551) => {
|
||||
for i in 0..pixel_count {
|
||||
let p = {
|
||||
let rgba = &pixels[i * 4..i * 4 + 4];
|
||||
(rgba[0] as u16 & 0xf8) << 8 |
|
||||
(rgba[1] as u16 & 0xf8) << 3 |
|
||||
(rgba[2] as u16 & 0xf8) >> 2 |
|
||||
(rgba[3] as u16) >> 7
|
||||
};
|
||||
NativeEndian::write_u16(&mut pixels[i * 2..i * 2 + 2], p);
|
||||
}
|
||||
pixels.truncate(pixel_count * 2);
|
||||
pixels
|
||||
},
|
||||
(TexFormat::RGB, TexDataType::UnsignedShort565) => {
|
||||
for i in 0..pixel_count {
|
||||
let p = {
|
||||
let rgb = &pixels[i * 4..i * 4 + 3];
|
||||
(rgb[0] as u16 & 0xf8) << 8 |
|
||||
(rgb[1] as u16 & 0xfc) << 3 |
|
||||
(rgb[2] as u16 & 0xf8) >> 3
|
||||
};
|
||||
NativeEndian::write_u16(&mut pixels[i * 2..i * 2 + 2], p);
|
||||
}
|
||||
pixels.truncate(pixel_count * 2);
|
||||
pixels
|
||||
},
|
||||
(TexFormat::RGBA, TexDataType::Float) => {
|
||||
let mut rgbaf32 = Vec::<u8>::with_capacity(pixel_count * 16);
|
||||
for rgba8 in pixels.chunks(4) {
|
||||
rgbaf32.write_f32::<NativeEndian>(rgba8[0] as f32).unwrap();
|
||||
rgbaf32.write_f32::<NativeEndian>(rgba8[1] as f32).unwrap();
|
||||
rgbaf32.write_f32::<NativeEndian>(rgba8[2] as f32).unwrap();
|
||||
rgbaf32.write_f32::<NativeEndian>(rgba8[3] as f32).unwrap();
|
||||
}
|
||||
rgbaf32
|
||||
},
|
||||
|
||||
(TexFormat::RGB, TexDataType::Float) => {
|
||||
let mut rgbf32 = Vec::<u8>::with_capacity(pixel_count * 12);
|
||||
for rgba8 in pixels.chunks(4) {
|
||||
rgbf32.write_f32::<NativeEndian>(rgba8[0] as f32).unwrap();
|
||||
rgbf32.write_f32::<NativeEndian>(rgba8[1] as f32).unwrap();
|
||||
rgbf32.write_f32::<NativeEndian>(rgba8[2] as f32).unwrap();
|
||||
}
|
||||
rgbf32
|
||||
},
|
||||
|
||||
(TexFormat::Alpha, TexDataType::Float) => {
|
||||
for rgba8 in pixels.chunks_mut(4) {
|
||||
let p = rgba8[3] as f32;
|
||||
NativeEndian::write_f32(rgba8, p);
|
||||
}
|
||||
pixels
|
||||
},
|
||||
|
||||
(TexFormat::Luminance, TexDataType::Float) => {
|
||||
for rgba8 in pixels.chunks_mut(4) {
|
||||
let p = rgba8[0] as f32;
|
||||
NativeEndian::write_f32(rgba8, p);
|
||||
}
|
||||
pixels
|
||||
},
|
||||
|
||||
(TexFormat::LuminanceAlpha, TexDataType::Float) => {
|
||||
let mut data = Vec::<u8>::with_capacity(pixel_count * 8);
|
||||
for rgba8 in pixels.chunks(4) {
|
||||
data.write_f32::<NativeEndian>(rgba8[0] as f32).unwrap();
|
||||
data.write_f32::<NativeEndian>(rgba8[3] as f32).unwrap();
|
||||
}
|
||||
data
|
||||
},
|
||||
|
||||
(TexFormat::RGBA, TexDataType::HalfFloat) => {
|
||||
let mut rgbaf16 = Vec::<u8>::with_capacity(pixel_count * 8);
|
||||
for rgba8 in pixels.chunks(4) {
|
||||
rgbaf16
|
||||
.write_u16::<NativeEndian>(f16::from_f32(rgba8[0] as f32).as_bits())
|
||||
.unwrap();
|
||||
rgbaf16
|
||||
.write_u16::<NativeEndian>(f16::from_f32(rgba8[1] as f32).as_bits())
|
||||
.unwrap();
|
||||
rgbaf16
|
||||
.write_u16::<NativeEndian>(f16::from_f32(rgba8[2] as f32).as_bits())
|
||||
.unwrap();
|
||||
rgbaf16
|
||||
.write_u16::<NativeEndian>(f16::from_f32(rgba8[3] as f32).as_bits())
|
||||
.unwrap();
|
||||
}
|
||||
rgbaf16
|
||||
},
|
||||
|
||||
(TexFormat::RGB, TexDataType::HalfFloat) => {
|
||||
let mut rgbf16 = Vec::<u8>::with_capacity(pixel_count * 6);
|
||||
for rgba8 in pixels.chunks(4) {
|
||||
rgbf16
|
||||
.write_u16::<NativeEndian>(f16::from_f32(rgba8[0] as f32).as_bits())
|
||||
.unwrap();
|
||||
rgbf16
|
||||
.write_u16::<NativeEndian>(f16::from_f32(rgba8[1] as f32).as_bits())
|
||||
.unwrap();
|
||||
rgbf16
|
||||
.write_u16::<NativeEndian>(f16::from_f32(rgba8[2] as f32).as_bits())
|
||||
.unwrap();
|
||||
}
|
||||
rgbf16
|
||||
},
|
||||
(TexFormat::Alpha, TexDataType::HalfFloat) => {
|
||||
for i in 0..pixel_count {
|
||||
let p = f16::from_f32(pixels[i * 4 + 3] as f32).as_bits();
|
||||
NativeEndian::write_u16(&mut pixels[i * 2..i * 2 + 2], p);
|
||||
}
|
||||
pixels.truncate(pixel_count * 2);
|
||||
pixels
|
||||
},
|
||||
(TexFormat::Luminance, TexDataType::HalfFloat) => {
|
||||
for i in 0..pixel_count {
|
||||
let p = f16::from_f32(pixels[i * 4] as f32).as_bits();
|
||||
NativeEndian::write_u16(&mut pixels[i * 2..i * 2 + 2], p);
|
||||
}
|
||||
pixels.truncate(pixel_count * 2);
|
||||
pixels
|
||||
},
|
||||
(TexFormat::LuminanceAlpha, TexDataType::HalfFloat) => {
|
||||
for rgba8 in pixels.chunks_mut(4) {
|
||||
let lum = f16::from_f32(rgba8[0] as f32).as_bits();
|
||||
let a = f16::from_f32(rgba8[3] as f32).as_bits();
|
||||
NativeEndian::write_u16(&mut rgba8[0..2], lum);
|
||||
NativeEndian::write_u16(&mut rgba8[2..4], a);
|
||||
}
|
||||
pixels
|
||||
},
|
||||
|
||||
// Validation should have ensured that we only hit the
|
||||
// above cases, but we haven't turned the (format, type)
|
||||
// into an enum yet so there's a default case here.
|
||||
_ => unreachable!("Unsupported formats {:?} {:?}", format, data_type),
|
||||
}
|
||||
}
|
||||
|
||||
struct TexPixels {
|
||||
data: Vec<u8>,
|
||||
size: Size2D<u32>,
|
||||
|
|
|
|||
|
|
@ -4,7 +4,7 @@
|
|||
|
||||
// https://www.khronos.org/registry/webgl/specs/latest/1.0/webgl.idl
|
||||
|
||||
use canvas_traits::webgl::{webgl_channel, WebGLResult, WebGLTextureId};
|
||||
use canvas_traits::webgl::{webgl_channel, TexDataType, TexFormat, WebGLResult, WebGLTextureId};
|
||||
use canvas_traits::webgl::{DOMToTextureCommand, WebGLCommand, WebGLError};
|
||||
use crate::dom::bindings::cell::DomRefCell;
|
||||
use crate::dom::bindings::codegen::Bindings::EXTTextureFilterAnisotropicBinding::EXTTextureFilterAnisotropicConstants;
|
||||
|
|
@ -13,7 +13,7 @@ use crate::dom::bindings::codegen::Bindings::WebGLTextureBinding;
|
|||
use crate::dom::bindings::inheritance::Castable;
|
||||
use crate::dom::bindings::reflector::{reflect_dom_object, DomObject};
|
||||
use crate::dom::bindings::root::DomRoot;
|
||||
use crate::dom::webgl_validations::types::{TexDataType, TexFormat, TexImageTarget};
|
||||
use crate::dom::webgl_validations::types::TexImageTarget;
|
||||
use crate::dom::webglobject::WebGLObject;
|
||||
use crate::dom::webglrenderingcontext::WebGLRenderingContext;
|
||||
use dom_struct::dom_struct;
|
||||
|
|
|
|||
|
|
@ -30,7 +30,7 @@ libc = "0.2"
|
|||
winapi = "0.3.2"
|
||||
|
||||
[build-dependencies]
|
||||
gl_generator = "0.9"
|
||||
gl_generator = "0.10"
|
||||
cc = "1.0"
|
||||
|
||||
[features]
|
||||
|
|
|
|||
|
|
@ -36,6 +36,8 @@ packages = [
|
|||
"crossbeam-deque",
|
||||
"crossbeam-epoch",
|
||||
"crossbeam-utils",
|
||||
"gl_generator",
|
||||
"khronos_api",
|
||||
"log",
|
||||
# TODO: remove num-rational when https://github.com/PistonDevelopers/image/pull/809 is merged.
|
||||
"num-rational",
|
||||
|
|
@ -45,6 +47,7 @@ packages = [
|
|||
"syn",
|
||||
"unicase",
|
||||
"winapi",
|
||||
"xml-rs",
|
||||
]
|
||||
# Files that are ignored for all tidy and lint checks.
|
||||
files = [
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue