GPU: Track HW tess at start of frame too.

This also makes it so we don't force the setting off when you change
backends, and just ignore it if unsupported.

GPU/Common/DrawEngineCommon.cpp

@@ -38,6 +38,7 @@ DrawEngineCommon::DrawEngineCommon() : decoderMap_(16) {
 	transformed = (TransformedVertex *)AllocateMemoryPages(TRANSFORMED_VERTEX_BUFFER_SIZE, MEM_PROT_READ | MEM_PROT_WRITE);
 	transformedExpanded = (TransformedVertex *)AllocateMemoryPages(3 * TRANSFORMED_VERTEX_BUFFER_SIZE, MEM_PROT_READ | MEM_PROT_WRITE);
 	useHWTransform_ = g_Config.bHardwareTransform;
+	useHWTessellation_ = UpdateUseHWTessellation(g_Config.bHardwareTessellation);
 }
 
 DrawEngineCommon::~DrawEngineCommon() {
@@ -174,6 +175,7 @@ void DrawEngineCommon::Resized() {
 	ClearTrackedVertexArrays();
 
 	useHWTransform_ = g_Config.bHardwareTransform;
+	useHWTessellation_ = UpdateUseHWTessellation(g_Config.bHardwareTessellation);
 }
 
 u32 DrawEngineCommon::NormalizeVertices(u8 *outPtr, u8 *bufPtr, const u8 *inPtr, int lowerBound, int upperBound, u32 vertType, int *vertexSize) {
@@ -747,7 +749,7 @@ bool DrawEngineCommon::CanUseHardwareTransform(int prim) {
 }
 
 bool DrawEngineCommon::CanUseHardwareTessellation(GEPatchPrimType prim) {
-	if (g_Config.bHardwareTessellation && !g_Config.bSoftwareRendering) {
+	if (useHWTessellation_) {
 		return CanUseHardwareTransform(PatchPrimToPrim(prim));
 	}
 	return false;

GPU/Common/DrawEngineCommon.h

@@ -104,6 +104,7 @@ public:
 	VertexDecoder *GetVertexDecoder(u32 vtype);
 
 protected:
+	virtual bool UpdateUseHWTessellation(bool enabled) { return enabled; }
 	virtual void ClearTrackedVertexArrays() {}
 
 	int ComputeNumVertsToDecode() const;
@@ -132,6 +133,7 @@ protected:
 	}
 
 	bool useHWTransform_ = false;
+	bool useHWTessellation_ = false;
 
 	// Vertex collector buffers
 	u8 *decoded = nullptr;

GPU/Common/ShaderId.cpp

@@ -60,7 +60,7 @@ std::string VertexShaderDesc(const VShaderID &id) {
 	return desc.str();
 }
 
-void ComputeVertexShaderID(VShaderID *id_out, u32 vertType, bool useHWTransform) {
+void ComputeVertexShaderID(VShaderID *id_out, u32 vertType, bool useHWTransform, bool useHWTessellation) {
 	bool isModeThrough = (vertType & GE_VTYPE_THROUGH) != 0;
 	bool doTexture = gstate.isTextureMapEnabled() && !gstate.isModeClear();
 	bool doTextureTransform = gstate.getUVGenMode() == GE_TEXMAP_TEXTURE_MATRIX;
@@ -131,7 +131,7 @@ void ComputeVertexShaderID(VShaderID *id_out, u32 vertType, bool useHWTransform)
 		id.SetBit(VS_BIT_NORM_REVERSE, gstate.areNormalsReversed());
 		id.SetBit(VS_BIT_HAS_TEXCOORD, hasTexcoord);
 
-		if (g_Config.bHardwareTessellation) {
+		if (useHWTessellation) {
 			id.SetBit(VS_BIT_BEZIER, doBezier);
 			id.SetBit(VS_BIT_SPLINE, doSpline);
 			if (doBezier || doSpline) {

GPU/Common/ShaderId.h

@@ -223,7 +223,7 @@ class Bugs;
 }
 
 
-void ComputeVertexShaderID(VShaderID *id, uint32_t vertexType, bool useHWTransform);
+void ComputeVertexShaderID(VShaderID *id, uint32_t vertexType, bool useHWTransform, bool useHWTessellation);
 // Generates a compact string that describes the shader. Useful in a list to get an overview
 // of the current flora of shaders.
 std::string VertexShaderDesc(const VShaderID &id);

GPU/D3D11/DrawEngineD3D11.cpp

@@ -514,7 +514,7 @@ rotateVBO:
 
 		D3D11VertexShader *vshader;
 		D3D11FragmentShader *fshader;
-		shaderManager_->GetShaders(prim, lastVType_, &vshader, &fshader, useHWTransform);
+		shaderManager_->GetShaders(prim, lastVType_, &vshader, &fshader, useHWTransform, useHWTessellation_);
 		ID3D11InputLayout *inputLayout = SetupDecFmtForDraw(vshader, dec_->GetDecVtxFmt(), dec_->VertexType());
 		context_->PSSetShader(fshader->GetShader(), nullptr, 0);
 		context_->VSSetShader(vshader->GetShader(), nullptr, 0);
@@ -598,7 +598,7 @@ rotateVBO:
 
 			D3D11VertexShader *vshader;
 			D3D11FragmentShader *fshader;
-			shaderManager_->GetShaders(prim, lastVType_, &vshader, &fshader, false);
+			shaderManager_->GetShaders(prim, lastVType_, &vshader, &fshader, false, false);
 			context_->PSSetShader(fshader->GetShader(), nullptr, 0);
 			context_->VSSetShader(vshader->GetShader(), nullptr, 0);
 			shaderManager_->UpdateUniforms(framebufferManager_->UseBufferedRendering());

GPU/D3D11/ShaderManagerD3D11.cpp

@@ -178,13 +178,13 @@ void ShaderManagerD3D11::BindUniforms() {
 	context_->PSSetConstantBuffers(0, 1, ps_cbs);
 }
 
-void ShaderManagerD3D11::GetShaders(int prim, u32 vertType, D3D11VertexShader **vshader, D3D11FragmentShader **fshader, bool useHWTransform) {
+void ShaderManagerD3D11::GetShaders(int prim, u32 vertType, D3D11VertexShader **vshader, D3D11FragmentShader **fshader, bool useHWTransform, bool useHWTessellation) {
 	VShaderID VSID;
 	FShaderID FSID;
 
 	if (gstate_c.IsDirty(DIRTY_VERTEXSHADER_STATE)) {
 		gstate_c.Clean(DIRTY_VERTEXSHADER_STATE);
-		ComputeVertexShaderID(&VSID, vertType, useHWTransform);
+		ComputeVertexShaderID(&VSID, vertType, useHWTransform, useHWTessellation);
 	} else {
 		VSID = lastVSID_;
 	}

GPU/D3D11/ShaderManagerD3D11.h

@@ -84,7 +84,7 @@ public:
 	ShaderManagerD3D11(Draw::DrawContext *draw, ID3D11Device *device, ID3D11DeviceContext *context, D3D_FEATURE_LEVEL featureLevel);
 	~ShaderManagerD3D11();
 
-	void GetShaders(int prim, u32 vertType, D3D11VertexShader **vshader, D3D11FragmentShader **fshader, bool useHWTransform);
+	void GetShaders(int prim, u32 vertType, D3D11VertexShader **vshader, D3D11FragmentShader **fshader, bool useHWTransform, bool useHWTessellation);
 	void ClearShaders();
 	void DirtyLastShader() override;
 

GPU/Directx9/DrawEngineDX9.cpp

@@ -310,7 +310,7 @@ void DrawEngineDX9::DoFlush() {
 	GEPrimitiveType prim = prevPrim_;
 	ApplyDrawState(prim);
 
-	VSShader *vshader = shaderManager_->ApplyShader(CanUseHardwareTransform(prim), lastVType_);
+	VSShader *vshader = shaderManager_->ApplyShader(CanUseHardwareTransform(prim), useHWTessellation_, lastVType_);
 
 	if (vshader->UseHWTransform()) {
 		LPDIRECT3DVERTEXBUFFER9 vb_ = NULL;
@@ -491,7 +491,7 @@ rotateVBO:
 		}
 
 		ApplyDrawStateLate();
-		vshader = shaderManager_->ApplyShader(CanUseHardwareTransform(prim), lastVType_);
+		vshader = shaderManager_->ApplyShader(CanUseHardwareTransform(prim), useHWTessellation_, lastVType_);
 		IDirect3DVertexDeclaration9 *pHardwareVertexDecl = SetupDecFmtForDraw(vshader, dec_->GetDecVtxFmt(), dec_->VertexType());
 
 		if (pHardwareVertexDecl) {
@@ -552,7 +552,7 @@ rotateVBO:
 			maxIndex, drawBuffer, numTrans, drawIndexed, &params, &result);
 
 		ApplyDrawStateLate();
-		vshader = shaderManager_->ApplyShader(CanUseHardwareTransform(prim), lastVType_);
+		vshader = shaderManager_->ApplyShader(false, false, lastVType_);
 
 		if (result.action == SW_DRAW_PRIMITIVES) {
 			if (result.setStencil) {

GPU/Directx9/DrawEngineDX9.h

@@ -140,6 +140,10 @@ public:
 
 	void DispatchFlush() override { Flush(); }
 
+protected:
+	// Not currently supported.
+	bool UpdateUseHWTessellation(bool enable) override { return false; }
+
 private:
 	void DoFlush();
 

GPU/Directx9/GPU_DX9.cpp

@@ -97,7 +97,6 @@ GPU_DX9::GPU_DX9(GraphicsContext *gfxCtx, Draw::DrawContext *draw)
 
 	if (g_Config.bHardwareTessellation) {
 		// Disable hardware tessellation bacause DX9 is still unsupported.
-		g_Config.bHardwareTessellation = false;
 		ERROR_LOG(G3D, "Hardware Tessellation is unsupported, falling back to software tessellation");
 		auto gr = GetI18NCategory("Graphics");
 		host->NotifyUserMessage(gr->T("Turn off Hardware Tessellation - unsupported"), 2.5f, 0xFF3030FF);

GPU/Directx9/ShaderManagerDX9.cpp

@@ -546,7 +546,7 @@ void ShaderManagerDX9::DirtyLastShader() { // disables vertex arrays
 	lastPShader_ = nullptr;
 }
 
-VSShader *ShaderManagerDX9::ApplyShader(bool useHWTransform, u32 vertType) {
+VSShader *ShaderManagerDX9::ApplyShader(bool useHWTransform, bool useHWTessellation, u32 vertType) {
 	// Always use software for flat shading to fix the provoking index.
 	bool tess = gstate_c.bezier || gstate_c.spline;
 	useHWTransform = useHWTransform && (tess || gstate.getShadeMode() != GE_SHADE_FLAT);
@@ -554,7 +554,7 @@ VSShader *ShaderManagerDX9::ApplyShader(bool useHWTransform, u32 vertType) {
 	VShaderID VSID;
 	if (gstate_c.IsDirty(DIRTY_VERTEXSHADER_STATE)) {
 		gstate_c.Clean(DIRTY_VERTEXSHADER_STATE);
-		ComputeVertexShaderID(&VSID, vertType, useHWTransform);
+		ComputeVertexShaderID(&VSID, vertType, useHWTransform, useHWTessellation);
 	} else {
 		VSID = lastVSID_;
 	}
@@ -595,7 +595,7 @@ VSShader *ShaderManagerDX9::ApplyShader(bool useHWTransform, u32 vertType) {
 			}
 			delete vs;
 
-			ComputeVertexShaderID(&VSID, vertType, false);
+			ComputeVertexShaderID(&VSID, vertType, false, false);
 
 			// TODO: Look for existing shader with the appropriate ID, use that instead of generating a new one - however, need to make sure
 			// that that shader ID is not used when computing the linked shader ID below, because then IDs won't match

GPU/Directx9/ShaderManagerDX9.h

@@ -81,7 +81,7 @@ public:
 	~ShaderManagerDX9();
 
 	void ClearCache(bool deleteThem);  // TODO: deleteThem currently not respected
-	VSShader *ApplyShader(bool useHWTransform, u32 vertType);
+	VSShader *ApplyShader(bool useHWTransform, bool useHWTessellation, u32 vertType);
 	void DirtyShader();
 	void DirtyLastShader() override;
 

GPU/GLES/DrawEngineGLES.cpp

@@ -318,7 +318,7 @@ void DrawEngineGLES::DoFlush() {
 	GEPrimitiveType prim = prevPrim_;
 
 	VShaderID vsid;
-	Shader *vshader = shaderManager_->ApplyVertexShader(CanUseHardwareTransform(prim), lastVType_, &vsid);
+	Shader *vshader = shaderManager_->ApplyVertexShader(CanUseHardwareTransform(prim), useHWTessellation_, lastVType_, &vsid);
 
 	GLRBuffer *vertexBuffer = nullptr;
 	GLRBuffer *indexBuffer = nullptr;
@@ -654,6 +654,15 @@ bool DrawEngineGLES::IsCodePtrVertexDecoder(const u8 *ptr) const {
 	return decJitCache_->IsInSpace(ptr);
 }
 
+bool DrawEngineGLES::SupportsHWTessellation() const {
+	bool hasTexelFetch = gl_extensions.GLES3 || (!gl_extensions.IsGLES && gl_extensions.VersionGEThan(3, 3, 0)) || gl_extensions.EXT_gpu_shader4;
+	return hasTexelFetch && gstate_c.SupportsAll(GPU_SUPPORTS_VERTEX_TEXTURE_FETCH | GPU_SUPPORTS_TEXTURE_FLOAT);
+}
+
+bool DrawEngineGLES::UpdateUseHWTessellation(bool enable) {
+	return enable && SupportsHWTessellation();
+}
+
 void TessellationDataTransferGLES::SendDataToShader(const SimpleVertex *const *points, int size_u, int size_v, u32 vertType, const Spline::Weight2D &weights) {
 	bool hasColor = (vertType & GE_VTYPE_COL_MASK) != 0;
 	bool hasTexCoord = (vertType & GE_VTYPE_TC_MASK) != 0;

GPU/GLES/DrawEngineGLES.h

@@ -182,6 +182,11 @@ public:
 
 	void ClearInputLayoutMap();
 
+	bool SupportsHWTessellation() const;
+
+protected:
+	bool UpdateUseHWTessellation(bool enable) override;
+
 private:
 	void InitDeviceObjects();
 	void DestroyDeviceObjects();

GPU/GLES/GPU_GLES.cpp

@@ -108,9 +108,7 @@ GPU_GLES::GPU_GLES(GraphicsContext *gfxCtx, Draw::DrawContext *draw)
 
 	if (g_Config.bHardwareTessellation) {
 		// Disable hardware tessellation if device is unsupported.
-		bool hasTexelFetch = gl_extensions.GLES3 || (!gl_extensions.IsGLES && gl_extensions.VersionGEThan(3, 3, 0)) || gl_extensions.EXT_gpu_shader4;
-		if (!gstate_c.SupportsAll(GPU_SUPPORTS_VERTEX_TEXTURE_FETCH | GPU_SUPPORTS_TEXTURE_FLOAT) || !hasTexelFetch) {
-			g_Config.bHardwareTessellation = false;
+		if (!drawEngine_.SupportsHWTessellation()) {
 			ERROR_LOG(G3D, "Hardware Tessellation is unsupported, falling back to software tessellation");
 			auto gr = GetI18NCategory("Graphics");
 			host->NotifyUserMessage(gr->T("Turn off Hardware Tessellation - unsupported"), 2.5f, 0xFF3030FF);

GPU/GLES/ShaderManagerGLES.cpp

@@ -645,7 +645,7 @@ Shader *ShaderManagerGLES::CompileVertexShader(VShaderID VSID) {
 	return new Shader(render_, codeBuffer_, desc, GL_VERTEX_SHADER, useHWTransform, attrMask, uniformMask);
 }
 
-Shader *ShaderManagerGLES::ApplyVertexShader(bool useHWTransform, u32 vertType, VShaderID *VSID) {
+Shader *ShaderManagerGLES::ApplyVertexShader(bool useHWTransform, bool useHWTessellation, u32 vertType, VShaderID *VSID) {
 	uint64_t dirty = gstate_c.GetDirtyUniforms();
 	if (dirty) {
 		if (lastShader_)
@@ -656,7 +656,7 @@ Shader *ShaderManagerGLES::ApplyVertexShader(bool useHWTransform, u32 vertType,
 
 	if (gstate_c.IsDirty(DIRTY_VERTEXSHADER_STATE)) {
 		gstate_c.Clean(DIRTY_VERTEXSHADER_STATE);
-		ComputeVertexShaderID(VSID, vertType, useHWTransform);
+		ComputeVertexShaderID(VSID, vertType, useHWTransform, useHWTessellation);
 	} else {
 		*VSID = lastVSID_;
 	}
@@ -687,7 +687,7 @@ Shader *ShaderManagerGLES::ApplyVertexShader(bool useHWTransform, u32 vertType,
 
 			// Can still work with software transform.
 			VShaderID vsidTemp;
-			ComputeVertexShaderID(&vsidTemp, vertType, false);
+			ComputeVertexShaderID(&vsidTemp, vertType, false, false);
 			vs = CompileVertexShader(vsidTemp);
 		}
 

GPU/GLES/ShaderManagerGLES.h

@@ -159,7 +159,7 @@ public:
 
 	// This is the old ApplyShader split into two parts, because of annoying information dependencies.
 	// If you call ApplyVertexShader, you MUST call ApplyFragmentShader soon afterwards.
-	Shader *ApplyVertexShader(bool useHWTransform, u32 vertType, VShaderID *VSID);
+	Shader *ApplyVertexShader(bool useHWTransform, bool useHWTessellation, u32 vertType, VShaderID *VSID);
 	LinkedShader *ApplyFragmentShader(VShaderID VSID, Shader *vs, u32 vertType, bool useBufferedRendering);
 
 	void DeviceLost();

GPU/Software/TransformUnit.h

@@ -149,4 +149,7 @@ public:
 	VertexDecoder *FindVertexDecoder(u32 vtype);
 
 	TransformUnit transformUnit;
+
+protected:
+	bool UpdateUseHWTessellation(bool enable) override { return false; }
 };

GPU/Vulkan/DrawEngineVulkan.cpp

@@ -813,7 +813,7 @@ void DrawEngineVulkan::DoFlush() {
 				ConvertStateToVulkanKey(*framebufferManager_, shaderManager_, prim, pipelineKey_, dynState_);
 			}
 
-			shaderManager_->GetShaders(prim, lastVType_, &vshader, &fshader, true);  // usehwtransform
+			shaderManager_->GetShaders(prim, lastVType_, &vshader, &fshader, true, useHWTessellation_);  // usehwtransform
 			_dbg_assert_msg_(G3D, vshader->UseHWTransform(), "Bad vshader");
 
 			Draw::NativeObject object = framebufferManager_->UseBufferedRendering() ? Draw::NativeObject::FRAMEBUFFER_RENDERPASS : Draw::NativeObject::BACKBUFFER_RENDERPASS;
@@ -923,7 +923,7 @@ void DrawEngineVulkan::DoFlush() {
 					sampler = nullSampler_;
 			}
 			if (!lastPipeline_ || gstate_c.IsDirty(DIRTY_BLEND_STATE | DIRTY_VIEWPORTSCISSOR_STATE | DIRTY_RASTER_STATE | DIRTY_DEPTHSTENCIL_STATE | DIRTY_VERTEXSHADER_STATE | DIRTY_FRAGMENTSHADER_STATE) || prim != lastPrim_) {
-				shaderManager_->GetShaders(prim, lastVType_, &vshader, &fshader, false);  // usehwtransform
+				shaderManager_->GetShaders(prim, lastVType_, &vshader, &fshader, false, false);  // usehwtransform
 				_dbg_assert_msg_(G3D, !vshader->UseHWTransform(), "Bad vshader");
 				if (prim != lastPrim_ || gstate_c.IsDirty(DIRTY_BLEND_STATE | DIRTY_VIEWPORTSCISSOR_STATE | DIRTY_RASTER_STATE | DIRTY_DEPTHSTENCIL_STATE)) {
 					ConvertStateToVulkanKey(*framebufferManager_, shaderManager_, prim, pipelineKey_, dynState_);

GPU/Vulkan/ShaderManagerVulkan.cpp

@@ -228,11 +228,11 @@ uint64_t ShaderManagerVulkan::UpdateUniforms(bool useBufferedRendering) {
 	return dirty;
 }
 
-void ShaderManagerVulkan::GetShaders(int prim, u32 vertType, VulkanVertexShader **vshader, VulkanFragmentShader **fshader, bool useHWTransform) {
+void ShaderManagerVulkan::GetShaders(int prim, u32 vertType, VulkanVertexShader **vshader, VulkanFragmentShader **fshader, bool useHWTransform, bool useHWTessellation) {
 	VShaderID VSID;
 	if (gstate_c.IsDirty(DIRTY_VERTEXSHADER_STATE)) {
 		gstate_c.Clean(DIRTY_VERTEXSHADER_STATE);
-		ComputeVertexShaderID(&VSID, vertType, useHWTransform);
+		ComputeVertexShaderID(&VSID, vertType, useHWTransform, useHWTessellation);
 	} else {
 		VSID = lastVSID_;
 	}

GPU/Vulkan/ShaderManagerVulkan.h

@@ -88,7 +88,7 @@ public:
 
 	void DeviceRestore(VulkanContext *vulkan, Draw::DrawContext *draw);
 
-	void GetShaders(int prim, u32 vertType, VulkanVertexShader **vshader, VulkanFragmentShader **fshader, bool useHWTransform);
+	void GetShaders(int prim, u32 vertType, VulkanVertexShader **vshader, VulkanFragmentShader **fshader, bool useHWTransform, bool useHWTessellation);
 	void ClearShaders();
 	void DirtyShader();
 	void DirtyLastShader() override;