M CHANGES → CHANGES

@@ -14,6 +14,7 @@ - VFS: Fix return values of VFileFILE.read and .write
  - Util: Fix PowerPC PNG read/write pixel order
  - GBA Video: Fix edge case with sprite blend modes and semitransparency
  - GBA Video: Fix objwin and blending interaction on sprites
+ - GBA Video: Fix OBJ semitransparency improperly interacting with other blending ops
 Misc:
  - Qt: Window size command line options are now supported
  - Qt: Increase usability of key mapper

M src/gba/renderers/software-obj.c → src/gba/renderers/software-obj.c

@@ -147,7 +147,10 @@ unsigned charBase = GBAObjAttributesCGetTile(sprite->c) * 0x20;
 	if (GBARegisterDISPCNTGetMode(renderer->dispcnt) >= 3 && GBAObjAttributesCGetTile(sprite->c) < 512) {
 		return 0;
 	}
-	int variant = renderer->target1Obj && GBAWindowControlIsBlendEnable(renderer->currentWindow.packed) && (renderer->blendEffect == BLEND_BRIGHTEN || renderer->blendEffect == BLEND_DARKEN);
+	int variant = renderer->target1Obj &&
+	              GBAWindowControlIsBlendEnable(renderer->currentWindow.packed) &&
+	              (renderer->blendEffect == BLEND_BRIGHTEN || renderer->blendEffect == BLEND_DARKEN) &&
+	              GBAObjAttributesAGetMode(sprite->a) != OBJ_MODE_SEMITRANSPARENT;
 	if (GBAObjAttributesAGetMode(sprite->a) == OBJ_MODE_SEMITRANSPARENT) {
 		int target2 = renderer->target2Bd << 4;
 		target2 |= renderer->bg[0].target2 << (renderer->bg[0].priority);