metal: allow configuring framebuffer formats

toml-config/src/config/parsers.rs

@@ -15,6 +15,7 @@ mod drm_device;
 mod drm_device_match;
 mod env;
 pub mod exec;
+mod format;
 mod gfx_api;
 mod idle;
 mod input;

toml-config/src/config/parsers/format.rs

@@ -0,0 +1,59 @@
+use {
+    crate::{
+        config::parser::{DataType, ParseResult, Parser, UnexpectedDataType},
+        toml::toml_span::{Span, SpannedExt},
+    },
+    jay_config::video::Format,
+    thiserror::Error,
+};
+
+#[derive(Debug, Error)]
+pub enum FormatParserError {
+    #[error(transparent)]
+    Expected(#[from] UnexpectedDataType),
+    #[error("Unknown format {0}")]
+    UnknownFormat(String),
+}
+
+pub struct FormatParser;
+
+impl Parser for FormatParser {
+    type Value = Format;
+    type Error = FormatParserError;
+    const EXPECTED: &'static [DataType] = &[DataType::String];
+
+    fn parse_string(&mut self, span: Span, string: &str) -> ParseResult<Self> {
+        let format = match string {
+            "argb8888" => Format::ARGB8888,
+            "xrgb8888" => Format::XRGB8888,
+            "abgr8888" => Format::ABGR8888,
+            "xbgr8888" => Format::XBGR8888,
+            "r8" => Format::R8,
+            "gr88" => Format::GR88,
+            "rgb888" => Format::RGB888,
+            "bgr888" => Format::BGR888,
+            "rgba4444" => Format::RGBA4444,
+            "rgbx4444" => Format::RGBX4444,
+            "bgra4444" => Format::BGRA4444,
+            "bgrx4444" => Format::BGRX4444,
+            "rgb565" => Format::RGB565,
+            "bgr565" => Format::BGR565,
+            "rgba5551" => Format::RGBA5551,
+            "rgbx5551" => Format::RGBX5551,
+            "bgra5551" => Format::BGRA5551,
+            "bgrx5551" => Format::BGRX5551,
+            "argb1555" => Format::ARGB1555,
+            "xrgb1555" => Format::XRGB1555,
+            "argb2101010" => Format::ARGB2101010,
+            "xrgb2101010" => Format::XRGB2101010,
+            "abgr2101010" => Format::ABGR2101010,
+            "xbgr2101010" => Format::XBGR2101010,
+            "abgr16161616" => Format::ABGR16161616,
+            "xbgr16161616" => Format::XBGR16161616,
+            "abgr16161616f" => Format::ABGR16161616F,
+            "xbgr16161616f" => Format::XBGR16161616F,
+            _ => return Err(FormatParserError::UnknownFormat(string.to_string()).spanned(span)),
+        };
+        Ok(format)
+    }
+}

toml-config/src/config/parsers/output.rs

@@ -5,6 +5,7 @@ use {
             extractor::{fltorint, opt, recover, s32, str, val, Extractor, ExtractorError},
             parser::{DataType, ParseResult, Parser, UnexpectedDataType},
             parsers::{
+                format::FormatParser,
                 mode::ModeParser,
                 output_match::{OutputMatchParser, OutputMatchParserError},
                 tearing::TearingParser,
@@ -48,8 +49,8 @@ impl<'a> Parser for OutputParser<'a> {
         table: &IndexMap<Spanned<String>, Spanned<Value>>,
     ) -> ParseResult<Self> {
         let mut ext = Extractor::new(self.cx, span, table);
-        let (name, match_val, x, y, scale, transform, mode, vrr_val, tearing_val) =
-            ext.extract((
+        let (name, match_val, x, y, scale, transform, mode, vrr_val, tearing_val, format_val) = ext
+            .extract((
                 opt(str("name")),
                 val("match"),
                 recover(opt(s32("x"))),
@@ -59,6 +60,7 @@ impl<'a> Parser for OutputParser<'a> {
                 opt(val("mode")),
                 opt(val("vrr")),
                 opt(val("tearing")),
+                opt(val("format")),
             ))?;
         let transform = match transform {
             None => None,
@@ -119,6 +121,18 @@ impl<'a> Parser for OutputParser<'a> {
                 }
             }
         }
+        let mut format = None;
+        if let Some(value) = format_val {
+            match value.parse(&mut FormatParser) {
+                Ok(v) => format = Some(v),
+                Err(e) => {
+                    log::warn!(
+                        "Could not parse framebuffer format setting: {}",
+                        self.cx.error(e)
+                    );
+                }
+            }
+        }
         Ok(Output {
             name: name.despan().map(|v| v.to_string()),
             match_: match_val.parse_map(&mut OutputMatchParser(self.cx))?,
@@ -129,6 +143,7 @@ impl<'a> Parser for OutputParser<'a> {
             mode,
             vrr,
             tearing,
+            format,
         })
     }
 }