GBA Video: Add window toggling

CHANGES

@@ -11,6 +11,7 @@ Features:
  - Command scripts for CLI debugger (by ahigerd)
  - ARM disassembler now resolves addresses to symbol names
  - Add Game Boy Player feature support to ports
+ - Individual window types can now be toggled in GBA debugging views
 Emulation fixes:
  - ARM: Fix ALU reading PC after shifting
  - ARM: Fix STR storing PC after address calculation

include/mgba/gba/interface.h

@@ -34,6 +34,17 @@ enum GBASIOJOYCommand {
 	JOY_RECV = 0x15
 };
 
+enum GBAVideoLayer {
+	GBA_LAYER_BG0 = 0,
+	GBA_LAYER_BG1,
+	GBA_LAYER_BG2,
+	GBA_LAYER_BG3,
+	GBA_LAYER_OBJ,
+	GBA_LAYER_WIN0,
+	GBA_LAYER_WIN1,
+	GBA_LAYER_OBJWIN,
+};
+
 struct GBA;
 struct GBAAudio;
 struct GBASIO;

include/mgba/internal/gba/video.h

@@ -194,6 +194,8 @@ struct GBAVideoRenderer {
 
 	bool disableBG[4];
 	bool disableOBJ;
+	bool disableWIN[2];
+	bool disableOBJWIN;
 
 	bool highlightBG[4];
 	bool highlightOBJ[128];

src/gba/core.c

@@ -33,11 +33,14 @@
 #include <mgba-util/vfs.h>
 
 static const struct mCoreChannelInfo _GBAVideoLayers[] = {
-	{ 0, "bg0", "Background 0", NULL },
+	{ GBA_LAYER_BG0, "bg0", "Background 0", NULL },
-	{ 1, "bg1", "Background 1", NULL },
+	{ GBA_LAYER_BG1, "bg1", "Background 1", NULL },
-	{ 2, "bg2", "Background 2", NULL },
+	{ GBA_LAYER_BG2, "bg2", "Background 2", NULL },
-	{ 3, "bg3", "Background 3", NULL },
+	{ GBA_LAYER_BG3, "bg3", "Background 3", NULL },
-	{ 4, "obj", "Objects", NULL },
+	{ GBA_LAYER_OBJ, "obj", "Objects", NULL },
+	{ GBA_LAYER_WIN0, "win0", "Window 0", NULL },
+	{ GBA_LAYER_WIN1, "win1", "Window 1", NULL },
+	{ GBA_LAYER_OBJWIN, "objwin", "Object Window", NULL },
 };
 
 static const struct mCoreChannelInfo _GBAAudioChannels[] = {
@@ -1038,15 +1041,24 @@ static size_t _GBACoreListAudioChannels(const struct mCore* core, const struct m
 static void _GBACoreEnableVideoLayer(struct mCore* core, size_t id, bool enable) {
 	struct GBA* gba = core->board;
 	switch (id) {
-	case 0:
+	case GBA_LAYER_BG0:
-	case 1:
+	case GBA_LAYER_BG1:
-	case 2:
+	case GBA_LAYER_BG2:
-	case 3:
+	case GBA_LAYER_BG3:
 		gba->video.renderer->disableBG[id] = !enable;
 		break;
-	case 4:
+	case GBA_LAYER_OBJ:
 		gba->video.renderer->disableOBJ = !enable;
 		break;
+	case GBA_LAYER_WIN0:
+		gba->video.renderer->disableWIN[0] = !enable;
+		break;
+	case GBA_LAYER_WIN1:
+		gba->video.renderer->disableWIN[1] = !enable;
+		break;
+	case GBA_LAYER_OBJWIN:
+		gba->video.renderer->disableOBJWIN = !enable;
+		break;
 	default:
 		break;
 	}
@@ -1075,14 +1087,14 @@ static void _GBACoreEnableAudioChannel(struct mCore* core, size_t id, bool enabl
 static void _GBACoreAdjustVideoLayer(struct mCore* core, size_t id, int32_t x, int32_t y) {
 	struct GBACore* gbacore = (struct GBACore*) core;
 	switch (id) {
-	case 0:
+	case GBA_LAYER_BG0:
-	case 1:
+	case GBA_LAYER_BG1:
-	case 2:
+	case GBA_LAYER_BG2:
-	case 3:
+	case GBA_LAYER_BG3:
 		gbacore->renderer.bg[id].offsetX = x;
 		gbacore->renderer.bg[id].offsetY = y;
 		break;
-	case 4:
+	case GBA_LAYER_OBJ:
 		gbacore->renderer.objOffsetX = x;
 		gbacore->renderer.objOffsetY = y;
 		gbacore->renderer.oamDirty = 1;

src/gba/extra/proxy.c

@@ -43,6 +43,9 @@ void GBAVideoProxyRendererCreate(struct GBAVideoProxyRenderer* renderer, struct
 	renderer->d.disableBG[2] = false;
 	renderer->d.disableBG[3] = false;
 	renderer->d.disableOBJ = false;
+	renderer->d.disableWIN[0] = false;
+	renderer->d.disableWIN[1] = false;
+	renderer->d.disableOBJWIN = false;
 
 	renderer->d.highlightBG[0] = false;
 	renderer->d.highlightBG[1] = false;
@@ -202,6 +205,9 @@ static bool _parsePacket(struct mVideoLogger* logger, const struct mVideoLoggerD
 		proxyRenderer->backend->disableBG[2] = proxyRenderer->d.disableBG[2];
 		proxyRenderer->backend->disableBG[3] = proxyRenderer->d.disableBG[3];
 		proxyRenderer->backend->disableOBJ = proxyRenderer->d.disableOBJ;
+		proxyRenderer->backend->disableWIN[0] = proxyRenderer->d.disableWIN[0];
+		proxyRenderer->backend->disableWIN[1] = proxyRenderer->d.disableWIN[1];
+		proxyRenderer->backend->disableOBJWIN = proxyRenderer->d.disableOBJWIN;
 		proxyRenderer->backend->highlightBG[0] = proxyRenderer->d.highlightBG[0];
 		proxyRenderer->backend->highlightBG[1] = proxyRenderer->d.highlightBG[1];
 		proxyRenderer->backend->highlightBG[2] = proxyRenderer->d.highlightBG[2];
@@ -302,6 +308,9 @@ void GBAVideoProxyRendererDrawScanline(struct GBAVideoRenderer* renderer, int y)
 		proxyRenderer->backend->disableBG[2] = proxyRenderer->d.disableBG[2];
 		proxyRenderer->backend->disableBG[3] = proxyRenderer->d.disableBG[3];
 		proxyRenderer->backend->disableOBJ = proxyRenderer->d.disableOBJ;
+		proxyRenderer->backend->disableWIN[0] = proxyRenderer->d.disableWIN[0];
+		proxyRenderer->backend->disableWIN[1] = proxyRenderer->d.disableWIN[1];
+		proxyRenderer->backend->disableOBJWIN = proxyRenderer->d.disableOBJWIN;
 		proxyRenderer->backend->highlightBG[0] = proxyRenderer->d.highlightBG[0];
 		proxyRenderer->backend->highlightBG[1] = proxyRenderer->d.highlightBG[1];
 		proxyRenderer->backend->highlightBG[2] = proxyRenderer->d.highlightBG[2];

src/gba/renderers/software-obj.c

@@ -148,7 +148,7 @@ int GBAVideoSoftwareRendererPreprocessSprite(struct GBAVideoSoftwareRenderer* re
 	uint32_t flags = GBAObjAttributesCGetPriority(sprite->c) << OFFSET_PRIORITY;
 	flags |= FLAG_TARGET_1 * ((GBAWindowControlIsBlendEnable(renderer->currentWindow.packed) && renderer->target1Obj && renderer->blendEffect == BLEND_ALPHA) || GBAObjAttributesAGetMode(sprite->a) == OBJ_MODE_SEMITRANSPARENT);
 	flags |= FLAG_OBJWIN * (GBAObjAttributesAGetMode(sprite->a) == OBJ_MODE_OBJWIN);
-	if ((flags & FLAG_OBJWIN) && renderer->currentWindow.priority < renderer->objwin.priority) {
+	if ((flags & FLAG_OBJWIN) && (renderer->currentWindow.priority < renderer->objwin.priority || renderer->d.disableOBJWIN)) {
 		return 0;
 	}
 	int32_t x = (uint32_t) GBAObjAttributesBGetX(sprite->b) << 23;

src/gba/renderers/video-software.c

@@ -61,6 +61,9 @@ void GBAVideoSoftwareRendererCreate(struct GBAVideoSoftwareRenderer* renderer) {
 	renderer->d.disableBG[2] = false;
 	renderer->d.disableBG[3] = false;
 	renderer->d.disableOBJ = false;
+	renderer->d.disableWIN[0] = false;
+	renderer->d.disableWIN[1] = false;
+	renderer->d.disableOBJWIN = false;
 
 	renderer->d.highlightBG[0] = false;
 	renderer->d.highlightBG[1] = false;
@@ -572,10 +575,10 @@ static void GBAVideoSoftwareRendererDrawScanline(struct GBAVideoRenderer* render
 	softwareRenderer->nWindows = 1;
 	if (GBARegisterDISPCNTIsWin0Enable(softwareRenderer->dispcnt) || GBARegisterDISPCNTIsWin1Enable(softwareRenderer->dispcnt) || GBARegisterDISPCNTIsObjwinEnable(softwareRenderer->dispcnt)) {
 		softwareRenderer->windows[0].control = softwareRenderer->winout;
-		if (GBARegisterDISPCNTIsWin1Enable(softwareRenderer->dispcnt)) {
+		if (GBARegisterDISPCNTIsWin1Enable(softwareRenderer->dispcnt) && !renderer->disableWIN[1]) {
 			_breakWindow(softwareRenderer, &softwareRenderer->winN[1], y);
 		}
-		if (GBARegisterDISPCNTIsWin0Enable(softwareRenderer->dispcnt)) {
+		if (GBARegisterDISPCNTIsWin0Enable(softwareRenderer->dispcnt) && !renderer->disableWIN[0]) {
 			_breakWindow(softwareRenderer, &softwareRenderer->winN[0], y);
 		}
 	} else {

src/platform/qt/FrameView.cpp

@@ -154,16 +154,44 @@ void FrameView::updateTilesGBA(bool) {
 
 		uint16_t* io = static_cast<GBA*>(m_controller->thread()->core->board)->memory.io;
 		QRgb backdrop = M_RGB5_TO_RGB8(static_cast<GBA*>(m_controller->thread()->core->board)->video.palette[0]);
-		m_gbaDispcnt = io[REG_DISPCNT >> 1];
+		GBARegisterDISPCNT gbaDispcnt = io[REG_DISPCNT >> 1];
-		int mode = GBARegisterDISPCNTGetMode(m_gbaDispcnt);
+		int mode = GBARegisterDISPCNTGetMode(gbaDispcnt);
 
 		std::array<bool, 4> enabled{
-			bool(GBARegisterDISPCNTIsBg0Enable(m_gbaDispcnt)),
+			bool(GBARegisterDISPCNTIsBg0Enable(gbaDispcnt)),
-			bool(GBARegisterDISPCNTIsBg1Enable(m_gbaDispcnt)),
+			bool(GBARegisterDISPCNTIsBg1Enable(gbaDispcnt)),
-			bool(GBARegisterDISPCNTIsBg2Enable(m_gbaDispcnt)),
+			bool(GBARegisterDISPCNTIsBg2Enable(gbaDispcnt)),
-			bool(GBARegisterDISPCNTIsBg3Enable(m_gbaDispcnt)),
+			bool(GBARegisterDISPCNTIsBg3Enable(gbaDispcnt)),
 		};
 
+		if (GBARegisterDISPCNTIsWin0Enable(gbaDispcnt)) {
+			m_queue.append({
+				{ LayerId::WINDOW, 0 },
+				!m_disabled.contains({ LayerId::WINDOW, 0 }),
+				{},
+				{}, {0, 0}, true, false
+			});
+		}
+
+		if (GBARegisterDISPCNTIsWin1Enable(gbaDispcnt)) {
+			m_queue.append({
+				{ LayerId::WINDOW, 1 },
+				!m_disabled.contains({ LayerId::WINDOW, 1 }),
+				{},
+				{}, {0, 0}, true, false
+			});
+		}
+
+		if (GBARegisterDISPCNTIsObjwinEnable(gbaDispcnt)) {
+			m_queue.append({
+				{ LayerId::WINDOW, 2 },
+				!m_disabled.contains({ LayerId::WINDOW, 2 }),
+				{},
+				{}, {0, 0}, true, false
+			});
+
+		}
+
 		for (int priority = 0; priority < 4; ++priority) {
 			for (int sprite = 0; sprite < 128; ++sprite) {
 				ObjInfo info;
@@ -271,6 +299,9 @@ void FrameView::injectGBA() {
 				gba->video.renderer->highlightBG[layer.id.index] = true;
 			}
 			break;
+		case LayerId::WINDOW:
+			m_vl->enableVideoLayer(m_vl, GBA_LAYER_WIN0 + layer.id.index, layer.enabled);
+			break;
 		}
 	}
 	if (m_overrideBackdrop.isValid()) {
@@ -521,6 +552,11 @@ QString FrameView::LayerId::readable() const {
 		break;
 	case WINDOW:
 		typeStr = tr("Window");
+#ifdef M_CORE_GBA
+		if (index == 2) {
+			return tr("Objwin");
+		}
+#endif
 		break;
 	case SPRITE:
 		typeStr = tr("Sprite");

src/platform/qt/FrameView.h

@@ -112,10 +112,6 @@ private:
 	ColorPicker m_backdropPicker;
 	QColor m_overrideBackdrop;
 
-#ifdef M_CORE_GBA
-	uint16_t m_gbaDispcnt;
-#endif
-
 	std::shared_ptr<bool> m_callbackLocker{std::make_shared<bool>(true)};
 };