ggpo: don't protect rtt texture vram if ggpo is enabled

tentative fix for flashing water reflection texture in vf4 during
netplay

core/rend/TexCache.cpp

@@ -214,23 +214,23 @@ void vramlock_list_add(vram_block* block)
  
 std::mutex vramlist_lock;
 
-void libCore_vramlock_Lock(u32 start_offset64, u32 end_offset64, BaseTextureCacheData *texture)
+static void vramlock_Lock(u32 start, u32 end, BaseTextureCacheData *texture)
 {
-	if (end_offset64 > VRAM_SIZE - 1)
+	if (end >= VRAM_SIZE)
 	{
-		WARN_LOG(PVR, "vramlock_Lock_64: end_offset64>(VRAM_SIZE-1) \n Tried to lock area out of vram , possibly bug on the pvr plugin");
-		end_offset64 = VRAM_SIZE - 1;
+		WARN_LOG(PVR, "vramlock_Lock: end >= VRAM_SIZE. Tried to lock area out of vram");
+		end = VRAM_SIZE - 1;
 	}
 
-	if (start_offset64 > end_offset64)
+	if (start > end)
 	{
-		WARN_LOG(PVR, "vramlock_Lock_64: start_offset64>end_offset64 \n Tried to lock negative block , possibly bug on the pvr plugin");
+		WARN_LOG(PVR, "vramlock_Lock: start > end. Tried to lock negative block");
 		return;
 	}
 
 	vram_block *block = new vram_block();
-	block->end = end_offset64;
-	block->start = start_offset64;
+	block->end = end;
+	block->start = start;
 	block->texture = texture;
 
 	{
@@ -445,19 +445,28 @@ bool BaseTextureCacheData::NeedsUpdate() {
 	return rc;
 }
 
+void BaseTextureCacheData::protectVRam()
+{
+	vramlock_Lock(sa_tex, sa + size - 1, this);
+}
+
+void BaseTextureCacheData::unprotectVRam()
+{
+	std::lock_guard<std::mutex> lock(vramlist_lock);
+	if (lock_block)
+		libCore_vramlock_Unlock_block_wb(lock_block);
+	lock_block = nullptr;
+}
+
 bool BaseTextureCacheData::Delete()
 {
 	if (custom_load_in_progress > 0)
 		return false;
 
-	{
-		std::lock_guard<std::mutex> lock(vramlist_lock);
-		if (lock_block)
-			libCore_vramlock_Unlock_block_wb(lock_block);
-		lock_block = nullptr;
-	}
+	unprotectVRam();
 
 	free(custom_image_data);
+	custom_image_data = nullptr;
 
 	return true;
 }
@@ -777,7 +786,7 @@ void BaseTextureCacheData::Update()
 	height = original_h;
 
 	//lock the texture to detect changes in it
-	libCore_vramlock_Lock(sa_tex, sa + size - 1, this);
+	protectVRam();
 
 	UploadToGPU(upscaled_w, upscaled_h, (u8*)temp_tex_buffer, IsMipmapped(), mipmapped);
 	if (config::DumpTextures)

core/rend/TexCache.h

@@ -564,7 +564,6 @@ struct vram_block
 
 bool VramLockedWriteOffset(size_t offset);
 bool VramLockedWrite(u8* address);
-void libCore_vramlock_Lock(u32 start_offset, u32 end_offset, BaseTextureCacheData *texture);
 
 void UpscalexBRZ(int factor, u32* source, u32* dest, int width, int height, bool has_alpha);
 
@@ -648,6 +647,9 @@ public:
 	bool NeedsUpdate();
 	virtual bool Delete();
 	virtual ~BaseTextureCacheData() = default;
+	void protectVRam();
+	void unprotectVRam();
+
 	static bool IsGpuHandledPaletted(TSP tsp, TCW tcw)
 	{
 		// Some palette textures are handled on the GPU

core/rend/dx11/dx11_renderer.cpp

@@ -1338,7 +1338,10 @@ void DX11Renderer::readRttRenderTarget(u32 texAddress)
 			device->CreateShaderResourceView(texture->texture, &viewDesc, &texture->textureView.get());
 
 			texture->dirty = 0;
-			libCore_vramlock_Lock(texture->sa_tex, texture->sa + texture->size - 1, texture);
+			if (!config::GGPOEnable)
+				texture->protectVRam();
+			else
+				texture->unprotectVRam();
 		}
 	}
 }

core/rend/dx9/d3d_renderer.cpp

@@ -968,7 +968,10 @@ void D3DRenderer::readRttRenderTarget(u32 texAddress)
 
 			texture->texture = rttTexture;
 			texture->dirty = 0;
-			libCore_vramlock_Lock(texture->sa_tex, texture->sa + texture->size - 1, texture);
+			if (!config::GGPOEnable)
+				texture->protectVRam();
+			else
+				texture->unprotectVRam();
 		}
 	}
 }

core/rend/gles/gltex.cpp

@@ -364,7 +364,10 @@ void ReadRTTBuffer()
 			texture_data->texID = gl.rtt.tex;
 			gl.rtt.tex = 0;
 			texture_data->dirty = 0;
-			libCore_vramlock_Lock(texture_data->sa_tex, texture_data->sa + texture_data->size - 1, texture_data);
+			if (!config::GGPOEnable)
+				texture_data->protectVRam();
+			else
+				texture_data->unprotectVRam();
 		}
 		gl.rtt.texAddress = ~0;
 	}

core/rend/vulkan/drawer.cpp

@@ -558,7 +558,10 @@ void TextureDrawer::EndRenderPass()
 		//memset(&vram[fb_rtt.TexAddr << 3], '\0', size);
 
 		texture->dirty = 0;
-		libCore_vramlock_Lock(texture->sa_tex, texture->sa + texture->size - 1, texture);
+		if (!config::GGPOEnable)
+			texture->protectVRam();
+		else
+			texture->unprotectVRam();
 	}
 	Drawer::EndRenderPass();
 }

core/rend/vulkan/oit/oit_drawer.cpp

@@ -678,7 +678,10 @@ void OITTextureDrawer::EndFrame()
 		//memset(&vram[fb_rtt.TexAddr << 3], '\0', size);
 
 		texture->dirty = 0;
-		libCore_vramlock_Lock(texture->sa_tex, texture->sa + texture->size - 1, texture);
+		if (!config::GGPOEnable)
+			texture->protectVRam();
+		else
+			texture->unprotectVRam();
 	}
 	OITDrawer::EndFrame();
 }