Simplify disk-cache-load on GLES as well, for the same reasons as #18216

GPU/GLES/GPU_GLES.cpp

@@ -201,14 +201,6 @@ u32 GPU_GLES::CheckGPUFeatures() const {
 	return features;
 }
 
-bool GPU_GLES::IsReady() {
-	return shaderManagerGL_->ContinuePrecompile();
-}
-
-void  GPU_GLES::CancelReady() {
-	shaderManagerGL_->CancelPrecompile();
-}
-
 void GPU_GLES::BuildReportingInfo() {
 	GLRenderManager *render = (GLRenderManager *)draw_->GetNativeObject(Draw::NativeObject::RENDER_MANAGER);
 
@@ -238,7 +230,6 @@ void GPU_GLES::DeviceLost() {
 	// Simply drop all caches and textures.
 	// FBOs appear to survive? Or no?
 	// TransformDraw has registered as a GfxResourceHolder.
-	CancelReady();
 	fragmentTestCache_.DeviceLost();
 
 	GPUCommonHW::DeviceLost();

GPU/GLES/GPU_GLES.h

@@ -40,9 +40,6 @@ class GPU_GLES : public GPUCommonHW {
 	// This gets called on startup and when we get back from settings.
 	u32 CheckGPUFeatures() const override;
 
-	bool IsReady() override;
-	void CancelReady() override;
-
 	void GetStats(char *buffer, size_t bufsize) override;
 
 	void DeviceLost() override;  // Only happens on Android. Drop all textures and shaders.

GPU/GLES/ShaderManagerGLES.cpp

@@ -821,7 +821,6 @@ Shader *ShaderManagerGLES::ApplyVertexShader(bool useHWTransform, bool useHWTess
 	}
 
 	vsCache_.Insert(*VSID, vs);
-	diskCacheDirty_ = true;
 	return vs;
 }
 
@@ -860,7 +859,6 @@ LinkedShader *ShaderManagerGLES::ApplyFragmentShader(VShaderID VSID, Shader *vs,
 			// Still insert it so we don't end up spamming generation.
 		}
 		fsCache_.Insert(FSID, fs);
-		diskCacheDirty_ = true;
 	}
 
 	// Okay, we have both shaders. Let's see if there's a linked one.
@@ -1012,6 +1010,31 @@ bool ShaderManagerGLES::LoadCacheFlags(File::IOFile &f, DrawEngineGLES *drawEngi
 }
 
 bool ShaderManagerGLES::LoadCache(File::IOFile &f) {
+	// TODO: Get rid of this struct.
+	struct {
+		std::vector<VShaderID> vert;
+		std::vector<FShaderID> frag;
+		std::vector<std::pair<VShaderID, FShaderID>> link;
+
+		size_t vertPos = 0;
+		size_t fragPos = 0;
+		size_t linkPos = 0;
+		double start;
+
+		void Clear() {
+			vert.clear();
+			frag.clear();
+			link.clear();
+			vertPos = 0;
+			fragPos = 0;
+			linkPos = 0;
+		}
+
+		bool Done() {
+			return vertPos >= vert.size() && fragPos >= frag.size() && linkPos >= link.size();
+		}
+	} diskCachePending_;
+
 	u64 sz = f.GetSize();
 	f.Seek(0, SEEK_SET);
 	CacheHeader header;
@@ -1066,12 +1089,6 @@ bool ShaderManagerGLES::LoadCache(File::IOFile &f) {
 		diskCachePending_.link.emplace_back(vsid, fsid);
 	}
 
-	// Actual compilation happens in ContinuePrecompile(), called by GPU_GLES's IsReady.
-	diskCacheDirty_ = false;
-	return true;
-}
-
-bool ShaderManagerGLES::ContinuePrecompile(float sliceTime) {
 	auto &pending = diskCachePending_;
 	if (pending.Done()) {
 		return true;
@@ -1080,15 +1097,8 @@ bool ShaderManagerGLES::ContinuePrecompile(float sliceTime) {
 	PSP_SetLoading("Compiling shaders...");
 
 	double start = time_now_d();
-	// Let's try to keep it under sliceTime if possible.
-	double end = start + sliceTime;
 
 	for (size_t &i = pending.vertPos; i < pending.vert.size(); i++) {
-		if (time_now_d() >= end) {
-			// We'll finish later.
-			return false;
-		}
-
 		const VShaderID &id = pending.vert[i];
 		if (!vsCache_.ContainsKey(id)) {
 			if (id.Bit(VS_BIT_IS_THROUGH) && id.Bit(VS_BIT_USE_HW_TRANSFORM)) {
@@ -1114,11 +1124,6 @@ bool ShaderManagerGLES::ContinuePrecompile(float sliceTime) {
 	}
 
 	for (size_t &i = pending.fragPos; i < pending.frag.size(); i++) {
-		if (time_now_d() >= end) {
-			// We'll finish later.
-			return false;
-		}
-
 		const FShaderID &id = pending.frag[i];
 		if (!fsCache_.ContainsKey(id)) {
 			Shader *fs = CompileFragmentShader(id);
@@ -1137,11 +1142,6 @@ bool ShaderManagerGLES::ContinuePrecompile(float sliceTime) {
 	}
 
 	for (size_t &i = pending.linkPos; i < pending.link.size(); i++) {
-		if (time_now_d() >= end) {
-			// We'll finish later.
-			return false;
-		}
-
 		const VShaderID &vsid = pending.link[i].first;
 		const FShaderID &fsid = pending.link[i].second;
 		Shader *vs = nullptr;
@@ -1164,22 +1164,14 @@ bool ShaderManagerGLES::ContinuePrecompile(float sliceTime) {
 	return true;
 }
 
-void ShaderManagerGLES::CancelPrecompile() {
-	diskCachePending_.Clear();
-}
-
 void ShaderManagerGLES::SaveCache(const Path &filename, DrawEngineGLES *drawEngine) {
-	if (!diskCacheDirty_) {
-		return;
-	}
 	if (linkedShaderCache_.empty()) {
 		return;
 	}
 	INFO_LOG(G3D, "Saving the shader cache to '%s'", filename.c_str());
 	FILE *f = File::OpenCFile(filename, "wb");
 	if (!f) {
 		// Can't save, give up for now.
-		diskCacheDirty_ = false;
 		return;
 	}
 	CacheHeader header;
@@ -1213,5 +1205,4 @@ void ShaderManagerGLES::SaveCache(const Path &filename, DrawEngineGLES *drawEngi
 		fwrite(&fsid, 1, sizeof(fsid), f);
 	}
 	fclose(f);
-	diskCacheDirty_ = false;
 }

GPU/GLES/ShaderManagerGLES.h

@@ -183,8 +183,6 @@ class ShaderManagerGLES : public ShaderManagerCommon {
 
 	bool LoadCacheFlags(File::IOFile &f, DrawEngineGLES *drawEngine);
 	bool LoadCache(File::IOFile &f);
-	bool ContinuePrecompile(float sliceTime = 1.0f / 60.0f);
-	void CancelPrecompile();
 	void SaveCache(const Path &filename, DrawEngineGLES *drawEngine);
 
 private:
@@ -219,29 +217,4 @@ class ShaderManagerGLES : public ShaderManagerCommon {
 
 	typedef DenseHashMap<VShaderID, Shader *> VSCache;
 	VSCache vsCache_;
-
-	bool diskCacheDirty_ = false;
-	struct {
-		std::vector<VShaderID> vert;
-		std::vector<FShaderID> frag;
-		std::vector<std::pair<VShaderID, FShaderID>> link;
-
-		size_t vertPos = 0;
-		size_t fragPos = 0;
-		size_t linkPos = 0;
-		double start;
-
-		void Clear() {
-			vert.clear();
-			frag.clear();
-			link.clear();
-			vertPos = 0;
-			fragPos = 0;
-			linkPos = 0;
-		}
-
-		bool Done() {
-			return vertPos >= vert.size() && fragPos >= frag.size() && linkPos >= link.size();
-		}
-	} diskCachePending_;
 };

GPU/GPU.cpp

@@ -53,14 +53,12 @@ static void SetGPU(T *obj) {
 #endif
 
 bool GPU_IsReady() {
-	if (gpu)
-		return gpu->IsReady();
-	return false;
+	return gpu != nullptr;
 }
 
 bool GPU_IsStarted() {
 	if (gpu)
-		return gpu->IsReady() && gpu->IsStarted();
+		return gpu->IsStarted();
 	return false;
 }
 
@@ -112,7 +110,7 @@ bool GPU_Init(GraphicsContext *ctx, Draw::DrawContext *draw) {
 #endif
 	}
 
-	if (gpu && gpu->IsReady() && !gpu->IsStarted())
+	if (gpu && !gpu->IsStarted())
 		SetGPU<SoftGPU>(nullptr);
 
 	return gpu != nullptr;
@@ -126,13 +124,6 @@ void GPU_Shutdown() {
 	// Reduce the risk for weird races with the Windows GE debugger.
 	gpuDebug = nullptr;
 
-	// Wait for IsReady, since it might be running on a thread.
-	if (gpu) {
-		gpu->CancelReady();
-		while (!gpu->IsReady()) {
-			sleep_ms(10);
-		}
-	}
 	delete gpu;
 	gpu = nullptr;
 }

GPU/GPUCommon.h

@@ -78,13 +78,9 @@ class GPUCommon : public GPUInterface, public GPUDebugInterface {
 
 	virtual void UpdateCmdInfo() = 0;
 
-	bool IsReady() override {
-		return true;
-	}
 	bool IsStarted() override {
 		return true;
 	}
-	void CancelReady() override {}
 	void Reinitialize() override;
 
 	void BeginHostFrame() override;

GPU/GPUInterface.h

@@ -190,8 +190,6 @@ class GPUInterface {
 	virtual Draw::DrawContext *GetDrawContext() = 0;
 
 	// Initialization
-	virtual bool IsReady() = 0;
-	virtual void CancelReady() = 0;
 	virtual bool IsStarted() = 0;
 	virtual void Reinitialize() = 0;
 

GPU/Vulkan/GPU_Vulkan.cpp

@@ -422,10 +422,6 @@ void GPU_Vulkan::CheckRenderResized() {
 }
 
 void GPU_Vulkan::DeviceLost() {
-	CancelReady();
-	while (!IsReady()) {
-		sleep_ms(10);
-	}
 	// draw_ is normally actually still valid here in Vulkan. But we null it out in GPUCommonHW::DeviceLost so we don't try to use it again.
 	Draw::DrawContext *draw = draw_;
 	if (draw) {