From 918b111eb59d6c9cb4f278ee5014fe85da5e523b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Branimir=20Karad=C5=BEi=C4=87?= <branimirkaradzic@gmail.com>
Date: Thu, 5 Mar 2015 21:11:44 -0800
Subject: [PATCH] Cleanup. Added state cache.

---
 src/bgfx.cpp        | 14 +++++++++-----
 src/renderer_d3d.h  | 44 ++++++++++++++++++++++++++++++++++++++++++++
 src/renderer_vk.cpp |  1 +
 3 files changed, 54 insertions(+), 5 deletions(-)

diff --git a/src/bgfx.cpp b/src/bgfx.cpp
index 709622ae..7ac7060e 100644
--- a/src/bgfx.cpp
+++ b/src/bgfx.cpp
@@ -972,16 +972,16 @@ namespace bgfx
 			m_viewRemap[ii] = ii;
 		}
 
-		memset(m_fb, 0xff, sizeof(m_fb) );
-		memset(m_clear, 0, sizeof(m_clear) );
-		memset(m_rect, 0, sizeof(m_rect) );
+		memset(m_fb,   0xff, sizeof(m_fb) );
+		memset(m_clear,   0, sizeof(m_clear) );
+		memset(m_rect,    0, sizeof(m_rect) );
 		memset(m_scissor, 0, sizeof(m_scissor) );
-		memset(m_seq, 0, sizeof(m_seq) );
+		memset(m_seq,     0, sizeof(m_seq) );
 		memset(m_seqMask, 0, sizeof(m_seqMask) );
 
 		for (uint32_t ii = 0; ii < BX_COUNTOF(m_rect); ++ii)
 		{
-			m_rect[ii].m_width = 1;
+			m_rect[ii].m_width  = 1;
 			m_rect[ii].m_height = 1;
 		}
 
@@ -1450,6 +1450,10 @@ again:
 				{
 					_type = RendererType::OpenGLES;
 				}
+				else if (s_rendererCreator[RendererType::Vulkan].supported)
+				{
+					_type = RendererType::Vulkan;
+				}
 			}
 			else if (BX_ENABLED(0
 				 ||  BX_PLATFORM_ANDROID
diff --git a/src/renderer_d3d.h b/src/renderer_d3d.h
index 1df0e3a7..eed41026 100644
--- a/src/renderer_d3d.h
+++ b/src/renderer_d3d.h
@@ -138,6 +138,50 @@ namespace bgfx
 		HashMap m_hashMap;
 	};
 
+	class StateCache
+	{
+	public:
+		void add(uint64_t _id, uint16_t _item)
+		{
+			invalidate(_id);
+			m_hashMap.insert(stl::make_pair(_id, _item));
+		}
+
+		uint16_t find(uint64_t _id)
+		{
+			HashMap::iterator it = m_hashMap.find(_id);
+			if (it != m_hashMap.end())
+			{
+				return it->second;
+			}
+
+			return UINT16_MAX;
+		}
+
+		void invalidate(uint64_t _id)
+		{
+			HashMap::iterator it = m_hashMap.find(_id);
+			if (it != m_hashMap.end())
+			{
+				m_hashMap.erase(it);
+			}
+		}
+
+		void invalidate()
+		{
+			m_hashMap.clear();
+		}
+
+		uint32_t getCount() const
+		{
+			return uint32_t(m_hashMap.size());
+		}
+
+	private:
+		typedef stl::unordered_map<uint64_t, uint16_t> HashMap;
+		HashMap m_hashMap;
+	};
+
 } // namespace bgfx
 
 #endif // BGFX_RENDERER_D3D_H_HEADER_GUARD
diff --git a/src/renderer_vk.cpp b/src/renderer_vk.cpp
index b9977c53..809a0c8e 100644
--- a/src/renderer_vk.cpp
+++ b/src/renderer_vk.cpp
@@ -14,6 +14,7 @@ namespace bgfx
 	{
 		return NULL;
 	}
+
 	void rendererDestroyVK()
 	{
 	}