Reintroduce Cardboard VR

Core/Config.cpp

@@ -696,6 +696,10 @@ struct ConfigTranslator {
 typedef ConfigTranslator<GPUBackend, GPUBackendToString, GPUBackendFromString> GPUBackendTranslator;
 
 static ConfigSetting graphicsSettings[] = {
+	ConfigSetting("EnableCardboardVR", &g_Config.bEnableCardboardVR, false, true, true),
+	ConfigSetting("CardboardScreenSize", &g_Config.iCardboardScreenSize, 50, true, true),
+	ConfigSetting("CardboardXShift", &g_Config.iCardboardXShift, 0, true, true),
+	ConfigSetting("CardboardYShift", &g_Config.iCardboardXShift, 0, true, true),
 	ConfigSetting("ShowFPSCounter", &g_Config.iShowFPSCounter, 0, true, true),
 	ReportedConfigSetting("GraphicsBackend", &g_Config.iGPUBackend, &DefaultGPUBackend, &GPUBackendTranslator::To, &GPUBackendTranslator::From, true, false),
 	ConfigSetting("FailedGraphicsBackends", &g_Config.sFailedGPUBackends, ""),

Core/Config.h

@@ -150,6 +150,11 @@ struct Config {
 	bool bAutoFrameSkip;
 	bool bFrameSkipUnthrottle;
 
+	bool bEnableCardboardVR; // Cardboard Master Switch
+	int iCardboardScreenSize; // Screen Size (in %)
+	int iCardboardXShift; // X-Shift of Screen (in %)
+	int iCardboardYShift; // Y-Shift of Screen (in %)
+
 	int iWindowX;
 	int iWindowY;
 	int iWindowWidth;  // Windows and other windowed environments

GPU/Common/FramebufferCommon.cpp

@@ -782,6 +782,9 @@ void FramebufferManagerCommon::DrawFramebufferToOutput(const u8 *srcPixels, GEBu
 	float v0 = 0.0f, v1 = 1.0f;
 	MakePixelTexture(srcPixels, srcPixelFormat, srcStride, 512, 272, u1, v1);
 
+	struct CardboardSettings cardboardSettings;
+	GetCardboardSettings(&cardboardSettings);
+
 	// This might draw directly at the backbuffer (if so, applyPostShader is set) so if there's a post shader, we need to apply it here.
 	// Should try to unify this path with the regular path somehow, but this simple solution works for most of the post shaders 
 	// (it always runs at output resolution so FXAA may look odd).
@@ -807,9 +810,18 @@ void FramebufferManagerCommon::DrawFramebufferToOutput(const u8 *srcPixels, GEBu
 
 	DrawTextureFlags flags = g_Config.iBufFilter == SCALE_LINEAR ? DRAWTEX_LINEAR : DRAWTEX_NEAREST;
 	flags = flags | DRAWTEX_TO_BACKBUFFER;
-	// Fullscreen Image
-	SetViewport2D(0, 0, pixelWidth_, pixelHeight_);
-	DrawActiveTexture(x, y, w, h, (float)pixelWidth_, (float)pixelHeight_, u0, v0, u1, v1, uvRotation, flags);
+	if (cardboardSettings.enabled) {
+		// Left Eye Image
+		SetViewport2D(cardboardSettings.leftEyeXPosition, cardboardSettings.screenYPosition, cardboardSettings.screenWidth, cardboardSettings.screenHeight);
+		DrawActiveTexture(x, y, w, h, (float)pixelWidth_, (float)pixelHeight_, u0, v0, u1, v1, ROTATION_LOCKED_HORIZONTAL, flags | DRAWTEX_KEEP_TEX);
+		// Right Eye Image
+		SetViewport2D(cardboardSettings.rightEyeXPosition, cardboardSettings.screenYPosition, cardboardSettings.screenWidth, cardboardSettings.screenHeight);
+		DrawActiveTexture(x, y, w, h, (float)pixelWidth_, (float)pixelHeight_, u0, v0, u1, v1, ROTATION_LOCKED_HORIZONTAL, flags);
+	} else {
+		// Fullscreen Image
+		SetViewport2D(0, 0, pixelWidth_, pixelHeight_);
+		DrawActiveTexture(x, y, w, h, (float)pixelWidth_, (float)pixelHeight_, u0, v0, u1, v1, uvRotation, flags);
+	}
 
 	gstate_c.Dirty(DIRTY_BLEND_STATE | DIRTY_DEPTHSTENCIL_STATE | DIRTY_RASTER_STATE);
 }
@@ -854,6 +866,9 @@ void FramebufferManagerCommon::CopyDisplayToOutput() {
 	u32 offsetX = 0;
 	u32 offsetY = 0;
 
+	CardboardSettings cardboardSettings;
+	GetCardboardSettings(&cardboardSettings);
+
 	VirtualFramebuffer *vfb = GetVFBAt(displayFramebufPtr_);
 	if (!vfb) {
 		// Let's search for a framebuf within this range. Note that we also look for
@@ -969,9 +984,19 @@ void FramebufferManagerCommon::CopyDisplayToOutput() {
 			// flip V.
 			if (needBackBufferYSwap_)
 				std::swap(v0, v1);
-			// Fullscreen Image
-			SetViewport2D(0, 0, pixelWidth_, pixelHeight_);
-			DrawActiveTexture(x, y, w, h, (float)pixelWidth_, (float)pixelHeight_, u0, v0, u1, v1, uvRotation, flags);
+			if (cardboardSettings.enabled) {
+				// Left Eye Image
+				SetViewport2D(cardboardSettings.leftEyeXPosition, cardboardSettings.screenYPosition, cardboardSettings.screenWidth, cardboardSettings.screenHeight);
+				DrawActiveTexture(x, y, w, h, (float)pixelWidth_, (float)pixelHeight_, u0, v0, u1, v1, ROTATION_LOCKED_HORIZONTAL, flags | DRAWTEX_KEEP_TEX);
+
+				// Right Eye Image
+				SetViewport2D(cardboardSettings.rightEyeXPosition, cardboardSettings.screenYPosition, cardboardSettings.screenWidth, cardboardSettings.screenHeight);
+				DrawActiveTexture(x, y, w, h, (float)pixelWidth_, (float)pixelHeight_, u0, v0, u1, v1, ROTATION_LOCKED_HORIZONTAL, flags);
+			} else {
+				// Fullscreen Image
+				SetViewport2D(0, 0, pixelWidth_, pixelHeight_);
+				DrawActiveTexture(x, y, w, h, (float)pixelWidth_, (float)pixelHeight_, u0, v0, u1, v1, uvRotation, flags);
+			}
 		} else if (usePostShader_ && extraFBOs_.size() == 1 && !postShaderAtOutputResolution_) {
 			// An additional pass, post-processing shader to the extra FBO.
 			shaderManager_->DirtyLastShader();  // dirty lastShader_
@@ -987,8 +1012,8 @@ void FramebufferManagerCommon::CopyDisplayToOutput() {
 			DrawTextureFlags flags = g_Config.iBufFilter == SCALE_LINEAR ? DRAWTEX_LINEAR : DRAWTEX_NEAREST;
 			DrawActiveTexture(0, 0, fbo_w, fbo_h, fbo_w, fbo_h, 0.0f, 0.0f, 1.0f, 1.0f, ROTATION_LOCKED_HORIZONTAL, flags);
 
-			draw_->SetScissorRect(0, 0, pixelWidth_, pixelHeight_);
 			draw_->BindFramebufferAsRenderTarget(nullptr, { Draw::RPAction::CLEAR, Draw::RPAction::CLEAR, Draw::RPAction::CLEAR });
+			draw_->SetScissorRect(0, 0, pixelWidth_, pixelHeight_);
 
 			// Use the extra FBO, with applied post-processing shader, as a texture.
 			// fbo_bind_as_texture(extraFBOs_[0], FB_COLOR_BIT, 0);
@@ -1005,10 +1030,19 @@ void FramebufferManagerCommon::CopyDisplayToOutput() {
 			Bind2DShader();
 			flags = (!postShaderIsUpscalingFilter_ && g_Config.iBufFilter == SCALE_LINEAR) ? DRAWTEX_LINEAR : DRAWTEX_NEAREST;
 			flags = flags | DRAWTEX_TO_BACKBUFFER;
-			// Fullscreen Image
-			SetViewport2D(0, 0, pixelWidth_, pixelHeight_);
-			draw_->SetScissorRect(0, 0, pixelWidth_, pixelHeight_);
-			DrawActiveTexture(x, y, w, h, (float)pixelWidth_, (float)pixelHeight_, u0, v0, u1, v1, uvRotation, flags);
+			if (g_Config.bEnableCardboardVR) {
+				// Left Eye Image
+				SetViewport2D(cardboardSettings.leftEyeXPosition, cardboardSettings.screenYPosition, cardboardSettings.screenWidth, cardboardSettings.screenHeight);
+				DrawActiveTexture(x, y, w, h, (float)pixelWidth_, (float)pixelHeight_, u0, v0, u1, v1, ROTATION_LOCKED_HORIZONTAL, flags | DRAWTEX_KEEP_TEX);
+
+				// Right Eye Image
+				SetViewport2D(cardboardSettings.rightEyeXPosition, cardboardSettings.screenYPosition, cardboardSettings.screenWidth, cardboardSettings.screenHeight);
+				DrawActiveTexture(x, y, w, h, (float)pixelWidth_, (float)pixelHeight_, u0, v0, u1, v1, ROTATION_LOCKED_HORIZONTAL, flags);
+			} else {
+				// Fullscreen Image
+				SetViewport2D(0, 0, pixelWidth_, pixelHeight_);
+				DrawActiveTexture(x, y, w, h, (float)pixelWidth_, (float)pixelHeight_, u0, v0, u1, v1, uvRotation, flags);
+			}
 		} else {
 			shaderManager_->DirtyLastShader();  // dirty lastShader_ BEFORE drawing
 			draw_->BindFramebufferAsRenderTarget(nullptr, { Draw::RPAction::CLEAR, Draw::RPAction::CLEAR, Draw::RPAction::CLEAR });
@@ -1024,9 +1058,19 @@ void FramebufferManagerCommon::CopyDisplayToOutput() {
 			PostShaderUniforms uniforms{};
 			CalculatePostShaderUniforms(vfb->bufferWidth, vfb->bufferHeight, vfb->renderWidth, vfb->renderHeight, &uniforms);
 			BindPostShader(uniforms);
-			// Fullscreen Image
-			SetViewport2D(0, 0, pixelWidth_, pixelHeight_);
-			DrawActiveTexture(x, y, w, h, (float)pixelWidth_, (float)pixelHeight_, u0, v0, u1, v1, uvRotation, flags);
+			if (g_Config.bEnableCardboardVR) {
+				// Left Eye Image
+				SetViewport2D(cardboardSettings.leftEyeXPosition, cardboardSettings.screenYPosition, cardboardSettings.screenWidth, cardboardSettings.screenHeight);
+				DrawActiveTexture(x, y, w, h, (float)pixelWidth_, (float)pixelHeight_, u0, v0, u1, v1, ROTATION_LOCKED_HORIZONTAL, flags | DRAWTEX_KEEP_TEX);
+
+				// Right Eye Image
+				SetViewport2D(cardboardSettings.rightEyeXPosition, cardboardSettings.screenYPosition, cardboardSettings.screenWidth, cardboardSettings.screenHeight);
+				DrawActiveTexture(x, y, w, h, (float)pixelWidth_, (float)pixelHeight_, u0, v0, u1, v1, ROTATION_LOCKED_HORIZONTAL, flags);
+			} else {
+				// Fullscreen Image
+				SetViewport2D(0, 0, pixelWidth_, pixelHeight_);
+				DrawActiveTexture(x, y, w, h, (float)pixelWidth_, (float)pixelHeight_, u0, v0, u1, v1, uvRotation, flags);
+			}
 		}
 	}
 	else if (useBufferedRendering_) {
@@ -1805,6 +1849,27 @@ void FramebufferManagerCommon::CalculatePostShaderUniforms(int bufferWidth, int
 	uniforms->video = textureCache_->VideoIsPlaying();
 }
 
+void FramebufferManagerCommon::GetCardboardSettings(CardboardSettings *cardboardSettings) {
+	// Calculate Cardboard Settings
+	float cardboardScreenScale = g_Config.iCardboardScreenSize / 100.0f;
+	float cardboardScreenWidth = pixelWidth_ / 2.0f * cardboardScreenScale;
+	float cardboardScreenHeight = pixelHeight_ / 2.0f * cardboardScreenScale;
+	float cardboardMaxXShift = (pixelWidth_ / 2.0f - cardboardScreenWidth) / 2.0f;
+	float cardboardUserXShift = g_Config.iCardboardXShift / 100.0f * cardboardMaxXShift;
+	float cardboardLeftEyeX = cardboardMaxXShift + cardboardUserXShift;
+	float cardboardRightEyeX = pixelWidth_ / 2.0f + cardboardMaxXShift - cardboardUserXShift;
+	float cardboardMaxYShift = pixelHeight_ / 2.0f - cardboardScreenHeight / 2.0f;
+	float cardboardUserYShift = g_Config.iCardboardYShift / 100.0f * cardboardMaxYShift;
+	float cardboardScreenY = cardboardMaxYShift + cardboardUserYShift;
+
+	cardboardSettings->enabled = g_Config.bEnableCardboardVR;
+	cardboardSettings->leftEyeXPosition = cardboardLeftEyeX;
+	cardboardSettings->rightEyeXPosition = cardboardRightEyeX;
+	cardboardSettings->screenYPosition = cardboardScreenY;
+	cardboardSettings->screenWidth = cardboardScreenWidth;
+	cardboardSettings->screenHeight = cardboardScreenHeight;
+}
+
 Draw::Framebuffer *FramebufferManagerCommon::GetTempFBO(TempFBO reason, u16 w, u16 h, Draw::FBColorDepth depth) {
 	u64 key = ((u64)reason << 48) | ((u64)depth << 32) | ((u32)w << 16) | h;
 	auto it = tempFBOs_.find(key);

GPU/Common/FramebufferCommon.h

@@ -46,6 +46,15 @@ namespace Draw {
 	class Framebuffer;
 }
 
+struct CardboardSettings {
+	bool enabled;
+	float leftEyeXPosition;
+	float rightEyeXPosition;
+	float screenYPosition;
+	float screenWidth;
+	float screenHeight;
+};
+
 class VulkanFBO;
 
 struct PostShaderUniforms {
@@ -316,6 +325,9 @@ class FramebufferManagerCommon {
 	virtual void Bind2DShader() = 0;
 	virtual void BindPostShader(const PostShaderUniforms &uniforms) = 0;
 
+	// Cardboard Settings Calculator
+	void GetCardboardSettings(CardboardSettings *cardboardSettings);
+
 	bool UpdateSize();
 	void SetNumExtraFBOs(int num);
 

UI/EmuScreen.cpp

@@ -964,6 +964,11 @@ void EmuScreen::CreateViews() {
 	if (g_Config.bShowDeveloperMenu) {
 		root_->Add(new Button(dev->T("DevMenu")))->OnClick.Handle(this, &EmuScreen::OnDevTools);
 	}
+
+	cardboardDisableButton_ = root_->Add(new Button(sc->T("Cardboard VR OFF"), new AnchorLayoutParams(bounds.centerX(), NONE, NONE, 30, true)));
+	cardboardDisableButton_->OnClick.Handle(this, &EmuScreen::OnDisableCardboard);
+	cardboardDisableButton_->SetVisibility(V_GONE);
+
 	saveStatePreview_ = new AsyncImageFileView("", IS_FIXED, nullptr, new AnchorLayoutParams(bounds.centerX(), 100, NONE, NONE, true));
 	saveStatePreview_->SetFixedSize(160, 90);
 	saveStatePreview_->SetColor(0x90FFFFFF);
@@ -1029,6 +1034,11 @@ UI::EventReturn EmuScreen::OnDevTools(UI::EventParams &params) {
 	return UI::EVENT_DONE;
 }
 
+UI::EventReturn EmuScreen::OnDisableCardboard(UI::EventParams &params) {
+	g_Config.bEnableCardboardVR = false;
+	return UI::EVENT_DONE;
+}
+
 void EmuScreen::update() {
 	UIScreen::update();
 
@@ -1282,6 +1292,7 @@ void EmuScreen::render() {
 		return;
 
 	if (hasVisibleUI()) {
+		cardboardDisableButton_->SetVisibility(g_Config.bEnableCardboardVR ? UI::V_VISIBLE : UI::V_GONE);
 		screenManager()->getUIContext()->BeginFrame();
 		renderUI();
 	}
@@ -1310,7 +1321,8 @@ bool EmuScreen::hasVisibleUI() {
 		return true;
 	if (!osm.IsEmpty() || g_Config.bShowTouchControls || g_Config.iShowFPSCounter != 0)
 		return true;
-
+	if (g_Config.bEnableCardboardVR)
+		return true;
 	// Debug UI.
 	if (g_Config.bShowDebugStats || g_Config.bShowDeveloperMenu || g_Config.bShowAudioDebug || g_Config.bShowFrameProfiler)
 		return true;

UI/EmuScreen.h

@@ -51,6 +51,7 @@ class EmuScreen : public UIScreen {
 protected:
 	void CreateViews() override;
 	UI::EventReturn OnDevTools(UI::EventParams &params);
+	UI::EventReturn OnDisableCardboard(UI::EventParams &params);
 
 private:
 	void bootGame(const std::string &filename);
@@ -102,4 +103,6 @@ class EmuScreen : public UIScreen {
 	UI::VisibilityTween *loadingViewVisible_ = nullptr;
 	UI::Spinner *loadingSpinner_ = nullptr;
 	UI::TextView *loadingTextView_ = nullptr;
+
+	UI::Button *cardboardDisableButton_ = nullptr;
 };

UI/GameSettingsScreen.cpp

@@ -442,6 +442,18 @@ void GameSettingsScreen::CreateViews() {
 	static const char *bufFilters[] = { "Linear", "Nearest", };
 	graphicsSettings->Add(new PopupMultiChoice(&g_Config.iBufFilter, gr->T("Screen Scaling Filter"), bufFilters, 1, ARRAY_SIZE(bufFilters), gr->GetName(), screenManager()));
 
+#if PPSSPP_PLATFORM(ANDROID) || PPSSPP_PLATFORM(IOS)
+	graphicsSettings->Add(new ItemHeader(gr->T("Cardboard VR Settings", "Cardboard VR Settings")));
+	CheckBox *cardboardMode = graphicsSettings->Add(new CheckBox(&g_Config.bEnableCardboardVR, gr->T("Enable Cardboard VR", "Enable Cardboard VR")));
+	cardboardMode->SetDisabledPtr(&g_Config.bSoftwareRendering);
+	PopupSliderChoice * cardboardScreenSize = graphicsSettings->Add(new PopupSliderChoice(&g_Config.iCardboardScreenSize, 30, 100, gr->T("Cardboard Screen Size", "Screen Size (in % of the viewport)"), 1, screenManager(), gr->T("% of viewport")));
+	cardboardScreenSize->SetDisabledPtr(&g_Config.bSoftwareRendering);
+	PopupSliderChoice *cardboardXShift = graphicsSettings->Add(new PopupSliderChoice(&g_Config.iCardboardXShift, -100, 100, gr->T("Cardboard Screen X Shift", "X Shift (in % of the void)"), 1, screenManager(), gr->T("% of the void")));
+	cardboardXShift->SetDisabledPtr(&g_Config.bSoftwareRendering);
+	PopupSliderChoice *cardboardYShift = graphicsSettings->Add(new PopupSliderChoice(&g_Config.iCardboardYShift, -100, 100, gr->T("Cardboard Screen Y Shift", "Y Shift (in % of the void)"), 1, screenManager(), gr->T("% of the void")));
+	cardboardYShift->SetDisabledPtr(&g_Config.bSoftwareRendering);
+#endif
+
 	graphicsSettings->Add(new ItemHeader(gr->T("Hack Settings", "Hack Settings (these WILL cause glitches)")));
 
 	static const char *bloomHackOptions[] = { "Off", "Safe", "Balanced", "Aggressive" };

android/.gitignore

@@ -12,4 +12,3 @@ ui_atlas.zim.png
 #assets/ui_atlas.zim
 #jni/ui_atlas.cpp
 #jni/ui_atlas.h
-.cxx