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Auto merge of #13959 - servo:dead-gfx, r=nox
Remove some unused gfx code. <!-- Reviewable:start --> This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/13959) <!-- Reviewable:end -->
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3 changed files with 0 additions and 2260 deletions
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@ -1,223 +0,0 @@
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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//! CSS and SVG filter support.
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use app_units::Au;
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use azure::AzFloat;
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use azure::azure_hl::{ColorMatrixAttribute, ColorMatrixInput, CompositeInput, DrawTarget};
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use azure::azure_hl::{FilterNode, FilterType, LinearTransferAttribute, LinearTransferInput};
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use azure::azure_hl::{GaussianBlurAttribute, GaussianBlurInput};
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use azure::azure_hl::{Matrix5x4, TableTransferAttribute, TableTransferInput};
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use style::computed_values::filter;
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/// Creates a filter pipeline from a set of CSS filters. Returns the destination end of the filter
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/// pipeline and the opacity.
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pub fn create_filters(draw_target: &DrawTarget,
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temporary_draw_target: &DrawTarget,
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style_filters: &filter::T,
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accumulated_blur_radius: &mut Au)
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-> (FilterNode, AzFloat) {
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let mut opacity = 1.0;
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let mut filter = draw_target.create_filter(FilterType::Composite);
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filter.set_input(CompositeInput, &temporary_draw_target.snapshot());
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for style_filter in &style_filters.filters {
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match *style_filter {
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filter::Filter::HueRotate(angle) => {
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let hue_rotate = draw_target.create_filter(FilterType::ColorMatrix);
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let matrix = self::hue_rotate(angle.radians() as AzFloat);
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hue_rotate.set_attribute(ColorMatrixAttribute::Matrix(matrix));
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hue_rotate.set_input(ColorMatrixInput, &filter);
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filter = hue_rotate
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}
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filter::Filter::Opacity(opacity_value) => opacity *= opacity_value as AzFloat,
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filter::Filter::Saturate(amount) => {
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let saturate = draw_target.create_filter(FilterType::ColorMatrix);
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let matrix = self::saturate(amount as AzFloat);
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saturate.set_attribute(ColorMatrixAttribute::Matrix(matrix));
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saturate.set_input(ColorMatrixInput, &filter);
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filter = saturate
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}
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filter::Filter::Sepia(amount) => {
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let sepia = draw_target.create_filter(FilterType::ColorMatrix);
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let matrix = self::sepia(amount as AzFloat);
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sepia.set_attribute(ColorMatrixAttribute::Matrix(matrix));
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sepia.set_input(ColorMatrixInput, &filter);
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filter = sepia
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}
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filter::Filter::Grayscale(amount) => {
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let amount = amount as AzFloat;
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let grayscale = draw_target.create_filter(FilterType::ColorMatrix);
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grayscale.set_attribute(ColorMatrixAttribute::Matrix(self::grayscale(amount)));
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grayscale.set_input(ColorMatrixInput, &filter);
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filter = grayscale
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}
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filter::Filter::Invert(amount) => {
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let amount = amount as AzFloat;
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let invert = draw_target.create_filter(FilterType::TableTransfer);
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invert.set_attribute(TableTransferAttribute::DisableR(false));
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invert.set_attribute(TableTransferAttribute::DisableG(false));
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invert.set_attribute(TableTransferAttribute::DisableB(false));
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invert.set_attribute(TableTransferAttribute::TableR(&[1.0, amount - 1.0]));
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invert.set_attribute(TableTransferAttribute::TableG(&[1.0, amount - 1.0]));
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invert.set_attribute(TableTransferAttribute::TableB(&[1.0, amount - 1.0]));
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invert.set_input(TableTransferInput, &filter);
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filter = invert
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}
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filter::Filter::Brightness(amount) => {
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let amount = amount as AzFloat;
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let brightness = draw_target.create_filter(FilterType::LinearTransfer);
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brightness.set_attribute(LinearTransferAttribute::DisableR(false));
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brightness.set_attribute(LinearTransferAttribute::DisableG(false));
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brightness.set_attribute(LinearTransferAttribute::DisableB(false));
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brightness.set_attribute(LinearTransferAttribute::SlopeR(amount));
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brightness.set_attribute(LinearTransferAttribute::SlopeG(amount));
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brightness.set_attribute(LinearTransferAttribute::SlopeB(amount));
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brightness.set_input(LinearTransferInput, &filter);
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filter = brightness
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}
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filter::Filter::Contrast(amount) => {
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let amount = amount as AzFloat;
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let contrast = draw_target.create_filter(FilterType::LinearTransfer);
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contrast.set_attribute(LinearTransferAttribute::DisableR(false));
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contrast.set_attribute(LinearTransferAttribute::DisableG(false));
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contrast.set_attribute(LinearTransferAttribute::DisableB(false));
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contrast.set_attribute(LinearTransferAttribute::SlopeR(amount));
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contrast.set_attribute(LinearTransferAttribute::SlopeG(amount));
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contrast.set_attribute(LinearTransferAttribute::SlopeB(amount));
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contrast.set_attribute(LinearTransferAttribute::InterceptR(-0.5 * amount + 0.5));
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contrast.set_attribute(LinearTransferAttribute::InterceptG(-0.5 * amount + 0.5));
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contrast.set_attribute(LinearTransferAttribute::InterceptB(-0.5 * amount + 0.5));
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contrast.set_input(LinearTransferInput, &filter);
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filter = contrast
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}
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filter::Filter::Blur(amount) => {
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*accumulated_blur_radius = accumulated_blur_radius.clone() + amount;
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let amount = amount.to_f32_px();
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let blur = draw_target.create_filter(FilterType::GaussianBlur);
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blur.set_attribute(GaussianBlurAttribute::StdDeviation(amount));
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blur.set_input(GaussianBlurInput, &filter);
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filter = blur
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}
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}
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}
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(filter, opacity)
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}
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/// Determines if we need a temporary draw target for the given set of filters.
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pub fn temporary_draw_target_needed_for_style_filters(filters: &filter::T) -> bool {
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for filter in &filters.filters {
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match *filter {
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filter::Filter::Opacity(value) if value == 1.0 => continue,
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_ => return true,
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}
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}
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false
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}
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// If there is one or more blur filters, we need to know the blur ammount
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// to expand the draw target size.
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pub fn calculate_accumulated_blur(style_filters: &filter::T) -> Au {
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let mut accum_blur = Au::new(0);
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for style_filter in &style_filters.filters {
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match *style_filter {
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filter::Filter::Blur(amount) => {
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accum_blur = accum_blur.clone() + amount;
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}
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_ => continue,
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}
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}
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accum_blur
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}
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/// Creates a grayscale 5x4 color matrix per CSS-FILTERS § 12.1.1.
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fn grayscale(amount: AzFloat) -> Matrix5x4 {
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Matrix5x4 {
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m11: 0.2126 + 0.7874 * (1.0 - amount),
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m21: 0.7152 - 0.7152 * (1.0 - amount),
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m31: 0.0722 - 0.0722 * (1.0 - amount),
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m41: 0.0,
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m51: 0.0,
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m12: 0.2126 - 0.2126 * (1.0 - amount),
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m22: 0.7152 + 0.2848 * (1.0 - amount),
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m32: 0.0722 - 0.0722 * (1.0 - amount),
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m42: 0.0,
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m52: 0.0,
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m13: 0.2126 - 0.2126 * (1.0 - amount),
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m23: 0.7152 - 0.7152 * (1.0 - amount),
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m33: 0.0722 + 0.9278 * (1.0 - amount),
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m43: 0.0,
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m53: 0.0,
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m14: 0.0, m24: 0.0, m34: 0.0, m44: 1.0, m54: 0.0,
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}
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}
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/// Creates a 5x4 hue rotation color matrix per CSS-FILTERS § 8.5.
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fn hue_rotate(angle: AzFloat) -> Matrix5x4 {
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let (c, s) = (angle.cos(), angle.sin());
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Matrix5x4 {
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m11: 0.213 + c * 0.787 + s * -0.213,
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m21: 0.715 + c * -0.715 + s * -0.715,
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m31: 0.072 + c * -0.072 + s * 0.928,
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m41: 0.0,
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m51: 0.0,
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m12: 0.213 + c * -0.213 + s * 0.143,
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m22: 0.715 + c * 0.285 + s * 0.140,
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m32: 0.072 + c * -0.072 + s * -0.283,
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m42: 0.0,
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m52: 0.0,
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m13: 0.213 + c * -0.213 + s * -0.787,
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m23: 0.715 + c * -0.715 + s * 0.715,
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m33: 0.072 + c * 0.928 + s * 0.072,
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m43: 0.0,
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m53: 0.0,
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m14: 0.0, m24: 0.0, m34: 0.0, m44: 1.0, m54: 0.0,
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}
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}
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/// Creates a 5x4 saturation color matrix per CSS-FILTERS § 8.5.
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fn saturate(amount: AzFloat) -> Matrix5x4 {
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Matrix5x4 {
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m11: 0.213 + 0.787 * amount,
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m21: 0.715 - 0.715 * amount,
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m31: 0.072 - 0.072 * amount,
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m41: 0.0,
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m51: 0.0,
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m12: 0.213 - 0.213 * amount,
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m22: 0.715 + 0.285 * amount,
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m32: 0.072 - 0.072 * amount,
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m42: 0.0,
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m52: 0.0,
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m13: 0.213 - 0.213 * amount,
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m23: 0.715 - 0.715 * amount,
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m33: 0.072 + 0.928 * amount,
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m43: 0.0,
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m53: 0.0,
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m14: 0.0, m24: 0.0, m34: 0.0, m44: 1.0, m54: 0.0,
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}
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}
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/// Creates a sepia 5x4 color matrix per CSS-FILTERS § 12.1.1.
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fn sepia(amount: AzFloat) -> Matrix5x4 {
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Matrix5x4 {
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m11: 0.393 + 0.607 * (1.0 - amount),
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m21: 0.769 - 0.769 * (1.0 - amount),
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m31: 0.189 - 0.189 * (1.0 - amount),
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m41: 0.0,
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m51: 0.0,
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m12: 0.349 - 0.349 * (1.0 - amount),
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m22: 0.686 + 0.314 * (1.0 - amount),
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m32: 0.168 - 0.168 * (1.0 - amount),
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m42: 0.0,
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m52: 0.0,
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m13: 0.272 - 0.272 * (1.0 - amount),
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m23: 0.534 - 0.534 * (1.0 - amount),
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m33: 0.131 + 0.869 * (1.0 - amount),
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m43: 0.0,
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m53: 0.0,
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m14: 0.0, m24: 0.0, m34: 0.0, m44: 1.0, m54: 0.0,
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}
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}
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@ -88,14 +88,6 @@ extern crate util;
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extern crate webrender_traits;
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extern crate xi_unicode;
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pub use paint_context::PaintContext;
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// Misc.
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mod filters;
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// Private painting modules
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mod paint_context;
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#[deny(unsafe_code)]
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pub mod display_list;
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