From f2b367f421a420ae5b15a4e10c170b2346561ac1 Mon Sep 17 00:00:00 2001
From: Michael Lee <leecommamichael@gmail.com>
Date: Mon, 8 Sep 2025 09:09:42 -0500
Subject: [PATCH] [core-image/tga] implement Option.do_not_expand_grayscale

---
 core/image/tga/tga.odin | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/core/image/tga/tga.odin b/core/image/tga/tga.odin
index 5fda803c5..c20201d6a 100644
--- a/core/image/tga/tga.odin
+++ b/core/image/tga/tga.odin
@@ -153,7 +153,7 @@ load_from_context :: proc(ctx: ^$C, options := Options{}, allocator := context.a
 		// Intentionally blank
 	case .Uncompressed_Black_White:
 		black_white  = true
-		dest_depth   = 24
+		dest_depth   = 8 if .do_not_expand_grayscale in options else 24
 	case .Uncompressed_Color_Mapped:
 		color_mapped = true
 	case .Compressed_Color_Mapped:
@@ -162,7 +162,7 @@ load_from_context :: proc(ctx: ^$C, options := Options{}, allocator := context.a
 	case .Compressed_Black_White:
 		black_white  = true
 		rle_encoding = true
-		dest_depth   = 24
+		dest_depth   = 8 if .do_not_expand_grayscale in options else 24
 
 	case:
 		return nil, .Unsupported_Format
@@ -181,6 +181,9 @@ load_from_context :: proc(ctx: ^$C, options := Options{}, allocator := context.a
 	}
 
 	switch dest_depth {
+	case 8: // R8
+		src_channels = 1
+		dest_channels = 1
 	case 15: // B5G5R5
 		src_channels  = 2
 		dest_channels = 3