Adding upstream version 115.8.0esr.upstream/115.8.0esr

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 225 insertions, 0 deletions

diff --git a/gfx/wr/examples/yuv.rs b/gfx/wr/examples/yuv.rs
new file mode 100644
index 0000000000..ecbf6f428a
--- /dev/null
+++ b/gfx/wr/examples/yuv.rs
@@ -0,0 +1,225 @@
+/* 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 http://mozilla.org/MPL/2.0/. */
+
+extern crate gleam;
+extern crate glutin;
+extern crate webrender;
+extern crate winit;
+
+#[path = "common/boilerplate.rs"]
+mod boilerplate;
+
+use crate::boilerplate::Example;
+use gleam::gl;
+use webrender::api::*;
+use webrender::render_api::*;
+use webrender::api::units::*;
+
+
+fn init_gl_texture(
+    id: gl::GLuint,
+    internal: gl::GLenum,
+    external: gl::GLenum,
+    bytes: &[u8],
+    gl: &dyn gl::Gl,
+) {
+    gl.bind_texture(gl::TEXTURE_2D, id);
+    gl.tex_parameter_i(gl::TEXTURE_2D, gl::TEXTURE_MAG_FILTER, gl::LINEAR as gl::GLint);
+    gl.tex_parameter_i(gl::TEXTURE_2D, gl::TEXTURE_MIN_FILTER, gl::LINEAR as gl::GLint);
+    gl.tex_parameter_i(gl::TEXTURE_2D, gl::TEXTURE_WRAP_S, gl::CLAMP_TO_EDGE as gl::GLint);
+    gl.tex_parameter_i(gl::TEXTURE_2D, gl::TEXTURE_WRAP_T, gl::CLAMP_TO_EDGE as gl::GLint);
+    gl.tex_image_2d(
+        gl::TEXTURE_2D,
+        0,
+        internal as gl::GLint,
+        100,
+        100,
+        0,
+        external,
+        gl::UNSIGNED_BYTE,
+        Some(bytes),
+    );
+    gl.bind_texture(gl::TEXTURE_2D, 0);
+}
+
+struct YuvImageProvider {
+    texture_ids: Vec<gl::GLuint>,
+}
+
+impl YuvImageProvider {
+    fn new(gl: &dyn gl::Gl) -> Self {
+        let texture_ids = gl.gen_textures(4);
+
+        init_gl_texture(texture_ids[0], gl::RED, gl::RED, &[127; 100 * 100], gl);
+        init_gl_texture(texture_ids[1], gl::RG8, gl::RG, &[0; 100 * 100 * 2], gl);
+        init_gl_texture(texture_ids[2], gl::RED, gl::RED, &[127; 100 * 100], gl);
+        init_gl_texture(texture_ids[3], gl::RED, gl::RED, &[127; 100 * 100], gl);
+
+        YuvImageProvider {
+            texture_ids
+        }
+    }
+}
+
+impl ExternalImageHandler for YuvImageProvider {
+    fn lock(
+        &mut self,
+        key: ExternalImageId,
+        _channel_index: u8,
+    ) -> ExternalImage {
+        let id = self.texture_ids[key.0 as usize];
+        ExternalImage {
+            uv: TexelRect::new(0.0, 0.0, 1.0, 1.0),
+            source: ExternalImageSource::NativeTexture(id),
+        }
+    }
+    fn unlock(&mut self, _key: ExternalImageId, _channel_index: u8) {
+    }
+}
+
+struct App {
+    texture_id: gl::GLuint,
+    current_value: u8,
+}
+
+impl Example for App {
+    fn render(
+        &mut self,
+        api: &mut RenderApi,
+        builder: &mut DisplayListBuilder,
+        txn: &mut Transaction,
+        _device_size: DeviceIntSize,
+        pipeline_id: PipelineId,
+        _document_id: DocumentId,
+    ) {
+        let bounds = LayoutRect::from_size(LayoutSize::new(500.0, 500.0));
+        let space_and_clip = SpaceAndClipInfo::root_scroll(pipeline_id);
+
+        builder.push_simple_stacking_context(
+            bounds.min,
+            space_and_clip.spatial_id,
+            PrimitiveFlags::IS_BACKFACE_VISIBLE,
+        );
+
+        let yuv_chanel1 = api.generate_image_key();
+        let yuv_chanel2 = api.generate_image_key();
+        let yuv_chanel2_1 = api.generate_image_key();
+        let yuv_chanel3 = api.generate_image_key();
+        txn.add_image(
+            yuv_chanel1,
+            ImageDescriptor::new(100, 100, ImageFormat::R8, ImageDescriptorFlags::IS_OPAQUE),
+            ImageData::External(ExternalImageData {
+                id: ExternalImageId(0),
+                channel_index: 0,
+                image_type: ExternalImageType::TextureHandle(
+                    ImageBufferKind::Texture2D,
+                ),
+            }),
+            None,
+        );
+        txn.add_image(
+            yuv_chanel2,
+            ImageDescriptor::new(100, 100, ImageFormat::RG8, ImageDescriptorFlags::IS_OPAQUE),
+            ImageData::External(ExternalImageData {
+                id: ExternalImageId(1),
+                channel_index: 0,
+                image_type: ExternalImageType::TextureHandle(
+                    ImageBufferKind::Texture2D,
+                ),
+            }),
+            None,
+        );
+        txn.add_image(
+            yuv_chanel2_1,
+            ImageDescriptor::new(100, 100, ImageFormat::R8, ImageDescriptorFlags::IS_OPAQUE),
+            ImageData::External(ExternalImageData {
+                id: ExternalImageId(2),
+                channel_index: 0,
+                image_type: ExternalImageType::TextureHandle(
+                    ImageBufferKind::Texture2D,
+                ),
+            }),
+            None,
+        );
+        txn.add_image(
+            yuv_chanel3,
+            ImageDescriptor::new(100, 100, ImageFormat::R8, ImageDescriptorFlags::IS_OPAQUE),
+            ImageData::External(ExternalImageData {
+                id: ExternalImageId(3),
+                channel_index: 0,
+                image_type: ExternalImageType::TextureHandle(
+                    ImageBufferKind::Texture2D,
+                ),
+            }),
+            None,
+        );
+
+        let info = CommonItemProperties::new(
+            LayoutRect::from_origin_and_size(LayoutPoint::new(100.0, 0.0), LayoutSize::new(100.0, 100.0)),
+            space_and_clip,
+        );
+        builder.push_yuv_image(
+            &info,
+            bounds,
+            YuvData::NV12(yuv_chanel1, yuv_chanel2),
+            ColorDepth::Color8,
+            YuvColorSpace::Rec601,
+            ColorRange::Limited,
+            ImageRendering::Auto,
+        );
+
+        let info = CommonItemProperties::new(
+            LayoutRect::from_origin_and_size(LayoutPoint::new(300.0, 0.0), LayoutSize::new(100.0, 100.0)),
+            space_and_clip,
+        );
+        builder.push_yuv_image(
+            &info,
+            bounds,
+            YuvData::PlanarYCbCr(yuv_chanel1, yuv_chanel2_1, yuv_chanel3),
+            ColorDepth::Color8,
+            YuvColorSpace::Rec601,
+            ColorRange::Limited,
+            ImageRendering::Auto,
+        );
+
+        builder.pop_stacking_context();
+    }
+
+    fn on_event(
+        &mut self,
+        _event: winit::event::WindowEvent,
+        _window: &winit::window::Window,
+        _api: &mut RenderApi,
+        _document_id: DocumentId,
+    ) -> bool {
+        false
+    }
+
+    fn get_image_handler(
+        &mut self,
+        gl: &dyn gl::Gl,
+    ) -> Option<Box<dyn ExternalImageHandler>> {
+        let provider = YuvImageProvider::new(gl);
+        self.texture_id = provider.texture_ids[0];
+        Some(Box::new(provider))
+    }
+
+    fn draw_custom(&mut self, gl: &dyn gl::Gl) {
+        init_gl_texture(self.texture_id, gl::RED, gl::RED, &[self.current_value; 100 * 100], gl);
+        self.current_value = self.current_value.wrapping_add(1);
+    }
+}
+
+fn main() {
+    let mut app = App {
+        texture_id: 0,
+        current_value: 0,
+    };
+
+    let opts = webrender::WebRenderOptions {
+        ..Default::default()
+    };
+
+    boilerplate::main_wrapper(&mut app, Some(opts));
+}