Refactor renderer loading mechanism

Cleanup for GEnv.
In future, this will allow us to load renderer libs without hardcoded
names just through iterating files with name starting from xrRender_

Layers/xrRender/HW.cpp: sanity

Author: Xottab-DUTY

src/Include/xrAPI/xrAPI.h

@@ -15,9 +15,6 @@ class UICore;
 
 class XRAPI_API EngineGlobalEnvironment
 {
-    using SupportCheck = bool(*)();
-    using SetupEnv = void(*)();
-
 public:
     IRender* Render;
     IDebugRender* DRender;
@@ -34,16 +31,6 @@ class XRAPI_API EngineGlobalEnvironment
     bool isDedicatedServer;
 
     int CurrentRenderer;
-    SupportCheck CheckR2;
-    SupportCheck CheckR3;
-    SupportCheck CheckR4;
-    SupportCheck CheckRGL;
-    SetupEnv SetupR1;
-    SetupEnv SetupR2;
-    SetupEnv SetupR3;
-    SetupEnv SetupR4;
-    SetupEnv SetupRGL;
-    SetupEnv SetupCurrentRenderer;
 };
 
 extern XRAPI_API EngineGlobalEnvironment GEnv;

src/Layers/xrRender/HW.cpp

@@ -29,6 +29,7 @@ void CHW::DestroyD3D()
 {
     _SHOW_REF("refCount:pD3D", pD3D);
     _RELEASE(pD3D);
+    hD3D = nullptr;
 }
 
 void CHW::CreateDevice(SDL_Window* m_sdlWnd)

src/Layers/xrRenderPC_GL/xrRender_GL.cpp

@@ -1,11 +1,11 @@
-// xrRender_GL.cpp : Defines the entry point for the DLL application.
-//
 #include "stdafx.h"
 #include "Layers/xrRender/dxRenderFactory.h"
 #include "Layers/xrRender/dxUIRender.h"
 #include "Layers/xrRender/dxDebugRender.h"
 
-void SetupEnvRGL()
+extern "C"
+{
+XR_EXPORT void SetupEnv()
 {
     GEnv.Render = &RImplementation;
     GEnv.RenderFactory = &RenderFactoryImpl;
@@ -17,25 +17,14 @@ void SetupEnvRGL()
     xrRender_initconsole();
 }
 
-bool SupportsOpenGLRendering()
+XR_EXPORT pcstr GetModeName()
 {
-    // XXX: do a real check
-    return true;
+    return "renderer_gl";
 }
 
-// This must not be optimized by compiler
-static const volatile class GEnvHelper
+XR_EXPORT bool CheckRendererSupport()
 {
-public:
-    GEnvHelper()
-    {
-        GEnv.CheckRGL = SupportsOpenGLRendering;
-        GEnv.SetupRGL = SetupEnvRGL;
-    }
-
-    ~GEnvHelper()
-    {
-        GEnv.SetupRGL = nullptr;
-        GEnv.SetupRGL = nullptr;
-    }
-} helper;
+    // XXX: do a real check
+    return true;
+}
+}

src/Layers/xrRenderPC_R1/xrRender_R1.cpp

@@ -3,7 +3,9 @@
 #include "Layers/xrRender/dxUIRender.h"
 #include "Layers/xrRender/dxDebugRender.h"
 
-void SetupEnvR1()
+extern "C"
+{
+XR_EXPORT void SetupEnv()
 {
     GEnv.Render = &RImplementation;
     GEnv.RenderFactory = &RenderFactoryImpl;
@@ -15,16 +17,17 @@ void SetupEnvR1()
     xrRender_initconsole();
 }
 
-// This must not be optimized by compiler
-static const volatile class GEnvHelper
+XR_EXPORT pcstr GetModeName()
+{
+    return "renderer_r1";
+}
+
+XR_EXPORT bool CheckRendererSupport()
 {
-public:
-    GEnvHelper()
-    {
-        GEnv.SetupR1 = SetupEnvR1;
-    }
-    ~GEnvHelper()
-    {
-        GEnv.SetupR1 = nullptr;
-    }
-} helper;
+    CHW _HW;
+    _HW.CreateD3D();
+    if (_HW.pD3D)
+        return true;
+    return false;
+}
+}

src/Layers/xrRenderPC_R2/xrRender_R2.cpp

@@ -3,7 +3,9 @@
 #include "Layers/xrRender/dxUIRender.h"
 #include "Layers/xrRender/dxDebugRender.h"
 
-void SetupEnvR2()
+extern "C"
+{
+XR_EXPORT void SetupEnv()
 {
     GEnv.Render = &RImplementation;
     GEnv.RenderFactory = &RenderFactoryImpl;
@@ -15,7 +17,12 @@ void SetupEnvR2()
     xrRender_initconsole();
 }
 
-bool SupportsAdvancedRendering()
+XR_EXPORT pcstr GetModeName()
+{
+    return "renderer_r2";
+}
+
+XR_EXPORT bool CheckRendererSupport()
 {
     D3DCAPS9 caps;
     CHW _HW;
@@ -26,22 +33,7 @@ bool SupportsAdvancedRendering()
 
     if (ps_ver_major < 3)
         return false;
-    else
-        return true;
-}
 
-// This must not be optimized by compiler
-static const volatile class GEnvHelper
-{
-public:
-    GEnvHelper()
-    {
-        GEnv.CheckR2 = SupportsAdvancedRendering;
-        GEnv.SetupR2 = SetupEnvR2;
-    }
-    ~GEnvHelper()
-    {
-        GEnv.CheckR2 = nullptr;
-        GEnv.SetupR2 = nullptr;
-    }
-} helper;
+    return true;
+}
+}

src/Layers/xrRenderPC_R3/xrRender_R3.cpp

@@ -3,7 +3,9 @@
 #include "Layers/xrRender/dxUIRender.h"
 #include "Layers/xrRender/dxDebugRender.h"
 
-void SetupEnvR3()
+extern "C"
+{
+XR_EXPORT void SetupEnv()
 {
     GEnv.Render = &RImplementation;
     GEnv.RenderFactory = &RenderFactoryImpl;
@@ -15,36 +17,13 @@ void SetupEnvR3()
     xrRender_initconsole();
 }
 
-bool SupportsDX10Rendering()
+XR_EXPORT pcstr GetModeName()
 {
-    return xrRender_test_hw() ? true : false;
-    /*
-    D3DCAPS9					caps;
-    CHW							_HW;
-    _HW.CreateD3D				();
-    _HW.pD3D->GetDeviceCaps		(D3DADAPTER_DEFAULT,D3DDEVTYPE_HAL,&caps);
-    _HW.DestroyD3D				();
-    u16		ps_ver_major		= u16 ( u32(u32(caps.PixelShaderVersion)&u32(0xf << 8ul))>>8 );
-
-    if (ps_ver_major<3)
-        return false;
-    else
-        return true;
-    */
+    return "renderer_r3";
 }
 
-// This must not be optimized by compiler
-static const volatile class GEnvHelper
+XR_EXPORT bool CheckRendererSupport()
 {
-public:
-    GEnvHelper()
-    {
-        GEnv.CheckR3 = SupportsDX10Rendering;
-        GEnv.SetupR3 = SetupEnvR3;
-    }
-    ~GEnvHelper()
-    {
-        GEnv.CheckR3 = nullptr;
-        GEnv.SetupR3 = nullptr;
-    }
-} helper;
+    return xrRender_test_hw() ? true : false;
+}
+}

src/Layers/xrRenderPC_R4/xrRender_R4.cpp

@@ -2,9 +2,10 @@
 #include "Layers/xrRender/dxRenderFactory.h"
 #include "Layers/xrRender/dxUIRender.h"
 #include "Layers/xrRender/dxDebugRender.h"
-#include "Include/xrAPI/xrAPI.h"
 
-void SetupEnvR4()
+extern "C"
+{
+XR_EXPORT void SetupEnv()
 {
     GEnv.Render = &RImplementation;
     GEnv.RenderFactory = &RenderFactoryImpl;
@@ -16,36 +17,13 @@ void SetupEnvR4()
     xrRender_initconsole();
 }
 
-bool SupportsDX11Rendering()
+XR_EXPORT pcstr GetModeName()
 {
-    return xrRender_test_hw() ? true : false;
-    /*
-    D3DCAPS9					caps;
-    CHW							_HW;
-    _HW.CreateD3D				();
-    _HW.pD3D->GetDeviceCaps		(D3DADAPTER_DEFAULT,D3DDEVTYPE_HAL,&caps);
-    _HW.DestroyD3D				();
-    u16		ps_ver_major		= u16 ( u32(u32(caps.PixelShaderVersion)&u32(0xf << 8ul))>>8 );
-
-    if (ps_ver_major<3)
-        return false;
-    else
-        return true;
-    */
+    return "renderer_r4";
 }
 
-// This must not be optimized by compiler
-static const volatile class GEnvHelper
+XR_EXPORT bool CheckRendererSupport()
 {
-public:
-    GEnvHelper()
-    {
-        GEnv.CheckR4 = SupportsDX11Rendering;
-        GEnv.SetupR4 = SetupEnvR4;
-    }
-    ~GEnvHelper()
-    {
-        GEnv.CheckR4 = nullptr;
-        GEnv.SetupR4 = nullptr;
-    }
-} helper;
+    return xrRender_test_hw() ? true : false;
+}
+}