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gfx: Allow images to be shipped to the WebRender thread without shipping
over the data as well. WebRender doesn't need the data, as it acquires it separately. About a 50%-100% improvement in display list building time on browser.html.
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9fcf9215d0
commit
0006c1923a
8 changed files with 151 additions and 70 deletions
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@ -17,7 +17,7 @@ use azure::{AzDrawTargetFillGlyphs, struct__AzGlyphBuffer, struct__AzPoint};
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use azure::{AzFloat, struct__AzDrawOptions, struct__AzGlyph};
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use display_list::TextOrientation::{SidewaysLeft, SidewaysRight, Upright};
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use display_list::{BLUR_INFLATION_FACTOR, BorderRadii, BoxShadowClipMode, ClippingRegion};
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use display_list::{TextDisplayItem};
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use display_list::{TextDisplayItem, WebRenderImageInfo};
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use euclid::matrix2d::Matrix2D;
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use euclid::point::Point2D;
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use euclid::rect::{Rect, TypedRect};
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@ -27,10 +27,9 @@ use euclid::size::Size2D;
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use filters;
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use font_context::FontContext;
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use gfx_traits::{color, LayerKind};
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use net_traits::image::base::{Image, PixelFormat};
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use net_traits::image::base::PixelFormat;
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use range::Range;
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use std::default::Default;
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use std::sync::Arc;
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use std::{f32, mem, ptr};
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use style::computed_values::{border_style, filter, image_rendering, mix_blend_mode};
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use text::TextRun;
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@ -181,21 +180,22 @@ impl<'a> PaintContext<'a> {
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pub fn draw_image(&self,
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bounds: &Rect<Au>,
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stretch_size: &Size2D<Au>,
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image: Arc<Image>,
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image_info: &WebRenderImageInfo,
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image_data: &[u8],
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image_rendering: image_rendering::T) {
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let size = Size2D::new(image.width as i32, image.height as i32);
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let (pixel_width, source_format) = match image.format {
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let size = Size2D::new(image_info.width as i32, image_info.height as i32);
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let (pixel_width, source_format) = match image_info.format {
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PixelFormat::RGBA8 => (4, SurfaceFormat::B8G8R8A8),
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PixelFormat::K8 => (1, SurfaceFormat::A8),
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PixelFormat::RGB8 => panic!("RGB8 color type not supported"),
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PixelFormat::KA8 => panic!("KA8 color type not supported"),
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};
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let stride = image.width * pixel_width;
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let stride = image_info.width * pixel_width;
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let scale = self.screen_pixels_per_px();
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self.draw_target.make_current();
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let draw_target_ref = &self.draw_target;
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let azure_surface = match draw_target_ref.create_source_surface_from_data(&image.bytes,
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let azure_surface = match draw_target_ref.create_source_surface_from_data(image_data,
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size,
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stride as i32,
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source_format) {
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@ -204,7 +204,8 @@ impl<'a> PaintContext<'a> {
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};
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let source_rect = Rect::new(Point2D::new(0.0, 0.0),
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Size2D::new(image.width as AzFloat, image.height as AzFloat));
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Size2D::new(image_info.width as AzFloat,
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image_info.height as AzFloat));
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let dest_rect = bounds.to_nearest_azure_rect(scale);
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// TODO(pcwalton): According to CSS-IMAGES-3 § 5.3, nearest-neighbor interpolation is a
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