implements PLN-0070

crates/console/prometeu-drivers/src/asset.rs

@@ -64,7 +64,7 @@ impl GlyphAssetSlotIndex {
 const GLYPH_BANK_PALETTE_COUNT_V1: usize = 64;
 const GLYPH_BANK_COLORS_PER_PALETTE: usize = 16;
 const GLYPH_BANK_PALETTE_BYTES_V1: usize =
-    GLYPH_BANK_PALETTE_COUNT_V1 * GLYPH_BANK_COLORS_PER_PALETTE * size_of::<u16>();
+    GLYPH_BANK_PALETTE_COUNT_V1 * GLYPH_BANK_COLORS_PER_PALETTE * size_of::<u32>();
 
 /// Resident metadata for a decoded/materialized asset inside a BankPolicy.
 #[derive(Debug)]
@@ -655,10 +655,13 @@ impl AssetManager {
             [[Color::BLACK; GLYPH_BANK_COLORS_PER_PALETTE]; GLYPH_BANK_PALETTE_COUNT_V1];
         for (p, pal) in palettes.iter_mut().enumerate() {
             for (c, slot) in pal.iter_mut().enumerate() {
-                let offset = (p * 16 + c) * 2;
+                let offset = (p * 16 + c) * 4;
-                let color_raw =
+                *slot = Color::rgba(
-                    u16::from_le_bytes([palette_data[offset], palette_data[offset + 1]]);
+                    palette_data[offset],
-                *slot = Color::from_rgb565_lossy(color_raw);
+                    palette_data[offset + 1],
+                    palette_data[offset + 2],
+                    palette_data[offset + 3],
+                );
             }
         }
 
@@ -687,10 +690,13 @@ impl AssetManager {
             [[Color::BLACK; GLYPH_BANK_COLORS_PER_PALETTE]; GLYPH_BANK_PALETTE_COUNT_V1];
         for (p, pal) in palettes.iter_mut().enumerate() {
             for (c, slot) in pal.iter_mut().enumerate() {
-                let offset = (p * 16 + c) * 2;
+                let offset = (p * 16 + c) * 4;
-                let color_raw =
+                *slot = Color::rgba(
-                    u16::from_le_bytes([palette_data[offset], palette_data[offset + 1]]);
+                    palette_data[offset],
-                *slot = Color::from_rgb565_lossy(color_raw);
+                    palette_data[offset + 1],
+                    palette_data[offset + 2],
+                    palette_data[offset + 3],
+                );
             }
         }
 
@@ -1306,14 +1312,13 @@ mod tests {
         let entry = test_glyph_asset_entry("glyphs", 2, 2);
         let mut data = vec![0x10, 0x23];
         data.extend_from_slice(&[0u8; GLYPH_BANK_PALETTE_BYTES_V1]);
-        data[2] = 0x34;
+        data[2..6].copy_from_slice(&[0x12, 0x34, 0x56, 0x78]);
-        data[3] = 0x12;
 
         let bank =
             AssetManager::decode_glyph_bank_from_buffer(&entry, &data).expect("glyph decode");
 
         assert_eq!(bank.pixel_indices, vec![1, 0, 2, 3]);
-        assert_eq!(bank.palettes[0][0], Color::from_rgb565_lossy(0x1234));
+        assert_eq!(bank.palettes[0][0], Color::from_raw(0x12345678));
     }
 
     #[test]

crates/console/prometeu-hal/src/cartridge_loader.rs

@@ -366,7 +366,7 @@ mod tests {
             bank_type: BankType::GLYPH,
             offset,
             size,
-            decoded_size: 16 * 16 + (GLYPH_BANK_PALETTE_COUNT_V1 as u64 * 16 * 2),
+            decoded_size: 16 * 16 + (GLYPH_BANK_PALETTE_COUNT_V1 as u64 * 16 * 4),
             codec: AssetCodec::None,
             metadata: json!({
                 "tile_size": 16,
@@ -449,7 +449,7 @@ mod tests {
                 bank_type: BankType::GLYPH,
                 offset: 4,
                 size: 4,
-                decoded_size: 16 * 16 + (GLYPH_BANK_PALETTE_COUNT_V1 as u64 * 16 * 2),
+                decoded_size: 16 * 16 + (GLYPH_BANK_PALETTE_COUNT_V1 as u64 * 16 * 4),
                 codec: AssetCodec::None,
                 metadata: json!({
                     "tile_size": 16,

crates/console/prometeu-hal/src/color.rs

@@ -65,23 +65,4 @@ impl Color {
         (self.0 & 0xFF) as u8
     }
 
-    #[deprecated(note = "Temporary bridge until the renderer buffer migrates to RGBA8888.")]
-    pub const fn to_rgb565_lossy(self) -> u16 {
-        let (r, g, b, _) = Self::unpack_to_native(self.0);
-        let r5 = (r as u16 >> 3) & 0x1F;
-        let g6 = (g as u16 >> 2) & 0x3F;
-        let b5 = (b as u16 >> 3) & 0x1F;
-        (r5 << 11) | (g6 << 5) | b5
-    }
-
-    #[deprecated(note = "Temporary bridge until asset palettes migrate to RGBA8888.")]
-    pub const fn from_rgb565_lossy(raw: u16) -> Self {
-        let r5 = ((raw >> 11) & 0x1F) as u32;
-        let g6 = ((raw >> 5) & 0x3F) as u32;
-        let b5 = (raw & 0x1F) as u32;
-        let r = ((r5 << 3) | (r5 >> 2)) as u8;
-        let g = ((g6 << 2) | (g6 >> 4)) as u8;
-        let b = ((b5 << 3) | (b5 >> 2)) as u8;
-        Self::rgba(r, g, b, 255)
-    }
 }

crates/console/prometeu-system/src/services/vm_runtime/tests.rs

@@ -113,11 +113,11 @@ fn serialized_single_function_module_with_consts(
 }
 
 fn test_glyph_payload_size(width: usize, height: usize) -> usize {
-    (width * height).div_ceil(2) + (GLYPH_BANK_PALETTE_COUNT_V1 * 16 * std::mem::size_of::<u16>())
+    (width * height).div_ceil(2) + (GLYPH_BANK_PALETTE_COUNT_V1 * 16 * std::mem::size_of::<u32>())
 }
 
 fn test_glyph_decoded_size(width: usize, height: usize) -> usize {
-    width * height + (GLYPH_BANK_PALETTE_COUNT_V1 * 16 * std::mem::size_of::<u16>())
+    width * height + (GLYPH_BANK_PALETTE_COUNT_V1 * 16 * std::mem::size_of::<u32>())
 }
 
 fn test_glyph_asset_entry(asset_name: &str, data_len: usize) -> AssetEntry {
@@ -141,8 +141,8 @@ fn test_glyph_asset_entry(asset_name: &str, data_len: usize) -> AssetEntry {
 
 fn test_glyph_asset_data() -> Vec<u8> {
     let mut data =
-        vec![0x11u8; test_glyph_payload_size(16, 16) - (GLYPH_BANK_PALETTE_COUNT_V1 * 16 * 2)];
+        vec![0x11u8; test_glyph_payload_size(16, 16) - (GLYPH_BANK_PALETTE_COUNT_V1 * 16 * 4)];
-    data.extend_from_slice(&[0u8; GLYPH_BANK_PALETTE_COUNT_V1 * 16 * 2]);
+    data.extend_from_slice(&[0u8; GLYPH_BANK_PALETTE_COUNT_V1 * 16 * 4]);
     data
 }
 

crates/tools/pbxgen-stress/src/lib.rs

@@ -284,7 +284,7 @@ fn build_glyph_asset() -> (AssetEntry, Vec<u8>) {
         bank_type: BankType::GLYPH,
         offset: 0,
         size: payload.len() as u64,
-        decoded_size: (8 * 8 + GLYPH_BANK_PALETTE_COUNT_V1 * GLYPH_BANK_COLORS_PER_PALETTE * 2)
+        decoded_size: (8 * 8 + GLYPH_BANK_PALETTE_COUNT_V1 * GLYPH_BANK_COLORS_PER_PALETTE * 4)
             as u64,
         codec: AssetCodec::None,
         metadata: serde_json::json!({
@@ -301,11 +301,11 @@ fn build_glyph_asset() -> (AssetEntry, Vec<u8>) {
 
 fn build_palette_bytes() -> Vec<u8> {
     let mut bytes =
-        Vec::with_capacity(GLYPH_BANK_PALETTE_COUNT_V1 * GLYPH_BANK_COLORS_PER_PALETTE * 2);
+        Vec::with_capacity(GLYPH_BANK_PALETTE_COUNT_V1 * GLYPH_BANK_COLORS_PER_PALETTE * 4);
     for palette_id in 0..GLYPH_BANK_PALETTE_COUNT_V1 {
         for color_index in 0..GLYPH_BANK_COLORS_PER_PALETTE {
             let color = if color_index == 1 { stress_color(palette_id) } else { Color::BLACK };
-            bytes.extend_from_slice(&color.raw().to_le_bytes());
+            bytes.extend_from_slice(&color.raw().to_be_bytes());
         }
     }
     bytes

discussion/index.ndjson

@@ -35,4 +35,4 @@
 {"type":"discussion","id":"DSC-0032","status":"done","ticket":"system-os-lifecycle-process-task-contract","title":"Agenda - SystemOS Lifecycle, Process and Task Contract","created_at":"2026-05-14","updated_at":"2026-05-15","tags":["runtime","os","lifecycle","process","task","shell","firmware"],"agendas":[],"decisions":[],"plans":[],"lessons":[{"id":"LSN-0041","file":"discussion/lessons/DSC-0032-system-os-lifecycle-process-task-contract/LSN-0041-systemos-lifecycle-authority.md","status":"done","created_at":"2026-05-15","updated_at":"2026-05-15"}]}
 {"type":"discussion","id":"DSC-0033","status":"done","ticket":"system-os-service-ownership-and-module-layout","title":"Agenda - SystemOS Service Ownership and Module Layout","created_at":"2026-05-14","updated_at":"2026-05-15","tags":["runtime","os","services","module-layout","vm","window-manager","logging"],"agendas":[],"decisions":[],"plans":[],"lessons":[{"id":"LSN-0042","file":"discussion/lessons/DSC-0033-system-os-service-ownership-and-module-layout/LSN-0042-systemos-service-ownership-boundary.md","status":"done","created_at":"2026-05-15","updated_at":"2026-05-15"}]}
 {"type":"discussion","id":"DSC-0036","status":"done","ticket":"prometeu-hub-ui-direction","title":"Agenda - Prometeu Hub UI Direction","created_at":"2026-05-15","updated_at":"2026-05-22","tags":["hub","ui","shell","system-apps","lifecycle","design-system"],"agendas":[],"decisions":[],"plans":[],"lessons":[{"id":"LSN-0045","file":"discussion/lessons/DSC-0036-prometeu-hub-ui-direction/LSN-0045-hub-ui-slices-should-prove-os-boundaries.md","status":"done","created_at":"2026-05-22","updated_at":"2026-05-22"}]}
-{"type":"discussion","id":"DSC-0037","status":"in_progress","ticket":"rgba8888-framebuffer-and-pixel-format-direction","title":"Agenda - RGBA8888 Framebuffer and Pixel Format Direction","created_at":"2026-05-22","updated_at":"2026-05-23","tags":["gfx","framebuffer","rgb565","rgba8888","renderer","assets","host","backend"],"agendas":[{"id":"AGD-0037","file":"AGD-0037-rgba8888-framebuffer-and-pixel-format-direction.md","status":"accepted","created_at":"2026-05-22","updated_at":"2026-05-23"}],"decisions":[{"id":"DEC-0029","file":"DEC-0029-rgba8888-runtime-pixel-format-contract.md","status":"accepted","created_at":"2026-05-23","updated_at":"2026-05-23","ref_agenda":"AGD-0037"}],"plans":[{"id":"PLN-0067","file":"PLN-0067-rgba8888-published-contracts-and-specs.md","status":"done","created_at":"2026-05-23","updated_at":"2026-05-23","ref_decisions":["DEC-0029"]},{"id":"PLN-0068","file":"PLN-0068-rgba8888-color-type-hal-and-abi-surface.md","status":"done","created_at":"2026-05-23","updated_at":"2026-05-23","ref_decisions":["DEC-0029"]},{"id":"PLN-0069","file":"PLN-0069-rgba8888-cpu-renderer-and-composition.md","status":"done","created_at":"2026-05-23","updated_at":"2026-05-23","ref_decisions":["DEC-0029"]},{"id":"PLN-0070","file":"PLN-0070-rgba8888-asset-palettes-tooling-and-fixtures.md","status":"open","created_at":"2026-05-23","updated_at":"2026-05-23","ref_decisions":["DEC-0029"]},{"id":"PLN-0071","file":"PLN-0071-rgba8888-host-presentation-path.md","status":"open","created_at":"2026-05-23","updated_at":"2026-05-23","ref_decisions":["DEC-0029"]},{"id":"PLN-0072","file":"PLN-0072-rgba8888-residue-removal-and-end-to-end-validation.md","status":"open","created_at":"2026-05-23","updated_at":"2026-05-23","ref_decisions":["DEC-0029"]}],"lessons":[]}
+{"type":"discussion","id":"DSC-0037","status":"in_progress","ticket":"rgba8888-framebuffer-and-pixel-format-direction","title":"Agenda - RGBA8888 Framebuffer and Pixel Format Direction","created_at":"2026-05-22","updated_at":"2026-05-23","tags":["gfx","framebuffer","rgb565","rgba8888","renderer","assets","host","backend"],"agendas":[{"id":"AGD-0037","file":"AGD-0037-rgba8888-framebuffer-and-pixel-format-direction.md","status":"accepted","created_at":"2026-05-22","updated_at":"2026-05-23"}],"decisions":[{"id":"DEC-0029","file":"DEC-0029-rgba8888-runtime-pixel-format-contract.md","status":"accepted","created_at":"2026-05-23","updated_at":"2026-05-23","ref_agenda":"AGD-0037"}],"plans":[{"id":"PLN-0067","file":"PLN-0067-rgba8888-published-contracts-and-specs.md","status":"done","created_at":"2026-05-23","updated_at":"2026-05-23","ref_decisions":["DEC-0029"]},{"id":"PLN-0068","file":"PLN-0068-rgba8888-color-type-hal-and-abi-surface.md","status":"done","created_at":"2026-05-23","updated_at":"2026-05-23","ref_decisions":["DEC-0029"]},{"id":"PLN-0069","file":"PLN-0069-rgba8888-cpu-renderer-and-composition.md","status":"done","created_at":"2026-05-23","updated_at":"2026-05-23","ref_decisions":["DEC-0029"]},{"id":"PLN-0070","file":"PLN-0070-rgba8888-asset-palettes-tooling-and-fixtures.md","status":"done","created_at":"2026-05-23","updated_at":"2026-05-23","ref_decisions":["DEC-0029"]},{"id":"PLN-0071","file":"PLN-0071-rgba8888-host-presentation-path.md","status":"open","created_at":"2026-05-23","updated_at":"2026-05-23","ref_decisions":["DEC-0029"]},{"id":"PLN-0072","file":"PLN-0072-rgba8888-residue-removal-and-end-to-end-validation.md","status":"open","created_at":"2026-05-23","updated_at":"2026-05-23","ref_decisions":["DEC-0029"]}],"lessons":[]}

discussion/workflow/plans/PLN-0070-rgba8888-asset-palettes-tooling-and-fixtures.md

@@ -2,7 +2,7 @@
 id: PLN-0070
 ticket: rgba8888-framebuffer-and-pixel-format-direction
 title: RGBA8888 Asset Palettes Tooling and Fixtures
-status: open
+status: done
 created: 2026-05-23
 ref_decisions: [DEC-0029]
 tags: [gfx, framebuffer, rgb565, rgba8888, renderer, assets, host, backend]