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Fix save to image on Windows (#32914)
* Read pixels in same format (gl::RGBA) as the texture Signed-off-by: crbrz <cristianb@gmail.com> * Add read pixels test Signed-off-by: crbrz <cristianb@gmail.com> * Use patched surfman Signed-off-by: crbrz <cristianb@gmail.com> * Update surfman to 0.9.5 Signed-off-by: crbrz <cristianb@gmail.com> --------- Signed-off-by: crbrz <cristianb@gmail.com>
This commit is contained in:
Cristian Brinza
GitHub
parent
bb176514c6
commit
7c2c383bb1
5 changed files with 114 additions and 11 deletions
46
Cargo.lock
generated
46
Cargo.lock
generated
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@ -896,6 +896,7 @@ dependencies = [
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"servo_geometry",
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"servo_url",
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"style_traits",
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"surfman",
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"time 0.1.45",
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"toml 0.5.11",
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"webrender",
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@ -5538,6 +5539,15 @@ dependencies = [
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"winapi-util",
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]
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[[package]]
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name = "scc"
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version = "2.1.7"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "a870e34715d5d59c8536040d4d4e7a41af44d527dc50237036ba4090db7996fc"
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dependencies = [
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"sdd",
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]
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[[package]]
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name = "scoped-tls"
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version = "1.0.1"
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@ -5761,6 +5771,12 @@ dependencies = [
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"tiny-skia",
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]
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[[package]]
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name = "sdd"
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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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checksum = "177258b64c0faaa9ffd3c65cd3262c2bc7e2588dbbd9c1641d0346145c1bbda8"
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[[package]]
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name = "selectors"
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version = "0.24.0"
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@ -5859,6 +5875,31 @@ dependencies = [
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"serde",
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]
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[[package]]
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name = "serial_test"
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version = "3.1.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "4b4b487fe2acf240a021cf57c6b2b4903b1e78ca0ecd862a71b71d2a51fed77d"
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dependencies = [
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"futures 0.3.30",
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"log",
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"once_cell",
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"parking_lot",
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"scc",
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"serial_test_derive",
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]
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[[package]]
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name = "serial_test_derive"
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version = "3.1.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "82fe9db325bcef1fbcde82e078a5cc4efdf787e96b3b9cf45b50b529f2083d67"
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dependencies = [
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"proc-macro2",
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"quote",
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"syn 2.0.72",
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]
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[[package]]
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name = "servo-display-link"
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version = "0.2.0"
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@ -6577,9 +6618,9 @@ dependencies = [
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[[package]]
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name = "surfman"
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version = "0.9.4"
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version = "0.9.5"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "1ef31fb4346fc13b83872a73fa2a1f4856dbf3ab3eb3495b32fb41c26ec8cc7a"
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checksum = "2e0fa3767391402bf43c1dd4a70bb76f0573856748f7c240e9180994cc3bc3bb"
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dependencies = [
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"bitflags 1.3.2",
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"cfg_aliases 0.1.1",
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@ -6598,6 +6639,7 @@ dependencies = [
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"metal 0.24.0",
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"objc",
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"raw-window-handle",
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"serial_test",
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"servo-display-link",
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"sparkle",
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"wayland-sys 0.30.1",
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@ -116,7 +116,7 @@ style = { git = "https://github.com/servo/stylo", branch = "2024-07-16", feature
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style_config = { git = "https://github.com/servo/stylo", branch = "2024-07-16" }
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style_dom = { git = "https://github.com/servo/stylo", package = "dom", branch = "2024-07-16" }
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style_traits = { git = "https://github.com/servo/stylo", branch = "2024-07-16", features = ["servo"] }
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surfman = { version = "0.9", features = ["chains"] }
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surfman = { version = "0.9.5", features = ["chains"] }
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syn = { version = "2", default-features = false, features = ["clone-impls", "derive", "parsing"] }
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synstructure = "0.13"
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thin-vec = "0.2.13"
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@ -46,5 +46,8 @@ webrender_api = { workspace = true }
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webrender_traits = { workspace = true }
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webxr = { git = "https://github.com/servo/webxr" }
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[dev-dependencies]
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surfman = { workspace = true }
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[build-dependencies]
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toml = "0.5"
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@ -2246,7 +2246,7 @@ impl<Window: WindowMethods + ?Sized> IOCompositor<Window> {
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Some(Image {
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width: img.width(),
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height: img.height(),
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format: PixelFormat::RGB8,
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format: PixelFormat::RGBA8,
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bytes: ipc::IpcSharedMemory::from_bytes(&img),
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id: None,
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cors_status: CorsStatus::Safe,
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@ -2269,7 +2269,7 @@ impl<Window: WindowMethods + ?Sized> IOCompositor<Window> {
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FramebufferUintLength::new(width),
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FramebufferUintLength::new(height),
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);
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let dynamic_image = DynamicImage::ImageRgb8(img);
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let dynamic_image = DynamicImage::ImageRgba8(img);
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if let Err(e) = dynamic_image.write_to(&mut file, ImageFormat::Png) {
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error!("Failed to save {} ({}).", path, e);
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}
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@ -5,8 +5,8 @@
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use std::rc::Rc;
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use gleam::gl::{self, Gl};
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use image::RgbImage;
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use log::trace;
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use image::RgbaImage;
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use log::{trace, warn};
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use servo_geometry::FramebufferUintLength;
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pub struct RenderTargetInfo {
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@ -105,7 +105,7 @@ impl RenderTargetInfo {
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y: i32,
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width: FramebufferUintLength,
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height: FramebufferUintLength,
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) -> RgbImage {
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) -> RgbaImage {
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let width = width.get() as usize;
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let height = height.get() as usize;
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// For some reason, OSMesa fails to render on the 3rd
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@ -121,13 +121,17 @@ impl RenderTargetInfo {
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y,
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width as gl::GLsizei,
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height as gl::GLsizei,
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gl::RGB,
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gl::RGBA,
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gl::UNSIGNED_BYTE,
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);
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let gl_error = self.gl.get_error();
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if gl_error != gl::NO_ERROR {
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warn!("GL error code 0x{gl_error:x} set after read_pixels");
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}
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// flip image vertically (texture is upside down)
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let orig_pixels = pixels.clone();
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let stride = width * 3;
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let stride = width * 4;
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for y in 0..height {
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let dst_start = y * stride;
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let src_start = (height - y - 1) * stride;
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@ -135,7 +139,7 @@ impl RenderTargetInfo {
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pixels[dst_start..dst_start + stride].clone_from_slice(&src_slice[..stride]);
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}
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RgbImage::from_raw(width as u32, height as u32, pixels).expect("Flipping image failed!")
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RgbaImage::from_raw(width as u32, height as u32, pixels).expect("Flipping image failed!")
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}
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}
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@ -148,3 +152,57 @@ impl Drop for RenderTargetInfo {
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self.gl.delete_framebuffers(&self.framebuffer_ids);
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}
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}
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#[cfg(test)]
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mod test {
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use gleam::gl;
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use image::Rgba;
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use servo_geometry::FramebufferUintLength;
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use surfman::{Connection, ContextAttributeFlags, ContextAttributes, Error, GLApi, GLVersion};
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use super::RenderTargetInfo;
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#[test]
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#[allow(unsafe_code)]
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fn test_read_pixels() -> Result<(), Error> {
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let connection = Connection::new()?;
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let adapter = connection.create_software_adapter()?;
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let mut device = connection.create_device(&adapter)?;
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let context_descriptor = device.create_context_descriptor(&ContextAttributes {
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version: GLVersion::new(3, 0),
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flags: ContextAttributeFlags::empty(),
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})?;
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let mut context = device.create_context(&context_descriptor, None)?;
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let gl = match connection.gl_api() {
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GLApi::GL => unsafe { gl::GlFns::load_with(|s| device.get_proc_address(&context, s)) },
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GLApi::GLES => unsafe {
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gl::GlesFns::load_with(|s| device.get_proc_address(&context, s))
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},
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};
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device.make_context_current(&context)?;
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{
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const WIDTH: FramebufferUintLength = FramebufferUintLength::new(16);
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const HEIGHT: FramebufferUintLength = FramebufferUintLength::new(16);
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let render_target = RenderTargetInfo::new(gl, WIDTH, HEIGHT);
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render_target.bind();
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render_target
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.gl
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.clear_color(12.0 / 255.0, 34.0 / 255.0, 56.0 / 255.0, 78.0 / 255.0);
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render_target.gl.clear(gl::COLOR_BUFFER_BIT);
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let img = render_target.read_back_from_gpu(0, 0, WIDTH, HEIGHT);
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assert_eq!(img.width(), WIDTH.get());
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assert_eq!(img.height(), HEIGHT.get());
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let expected_pixel: Rgba<u8> = Rgba([12, 34, 56, 78]);
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assert!(img.pixels().all(|&p| p == expected_pixel));
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}
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device.destroy_context(&mut context)?;
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Ok(())
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}
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}
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