gpu: handle depth test, alpha blending and face culling in Renderer.

src/gpu/rendercontext.cpp

@@ -58,7 +58,7 @@ class RenderContextData
 private:
     Scene *m_scene;
 
-    TrackedState m_blend;
+    TrackedState m_alpha_blend, m_depth_test, m_face_culling;
 };
 
 /*
@@ -73,18 +73,40 @@ RenderContext::RenderContext()
 
 RenderContext::~RenderContext()
 {
-    if (m_data->m_blend.HasChanged())
+    if (m_data->m_alpha_blend.HasChanged())
-        g_renderer->SetBlendState(m_data->m_blend.GetValue());
+        g_renderer->SetAlphaBlend(m_data->m_alpha_blend.GetValue());
+
+    if (m_data->m_depth_test.HasChanged())
+        g_renderer->SetDepthTest(m_data->m_depth_test.GetValue());
+
+    if (m_data->m_face_culling.HasChanged())
+        g_renderer->SetFaceCulling(m_data->m_face_culling.GetValue());
 
     delete m_data;
 }
 
-void RenderContext::SetBlendState(bool set)
+void RenderContext::SetAlphaBlend(bool set)
+{
+    if (!m_data->m_alpha_blend.HasChanged())
+        m_data->m_alpha_blend.TrackValue(g_renderer->GetAlphaBlend());
+
+    g_renderer->SetAlphaBlend(set);
+}
+
+void RenderContext::SetDepthTest(bool set)
+{
+    if (!m_data->m_depth_test.HasChanged())
+        m_data->m_depth_test.TrackValue(g_renderer->GetDepthTest());
+
+    g_renderer->SetDepthTest(set);
+}
+
+void RenderContext::SetFaceCulling(bool set)
 {
-    if (!m_data->m_blend.HasChanged())
+    if (!m_data->m_face_culling.HasChanged())
-        m_data->m_blend.TrackValue(g_renderer->GetBlendState());
+        m_data->m_face_culling.TrackValue(g_renderer->GetFaceCulling());
 
-    g_renderer->SetBlendState(set);
+    g_renderer->SetFaceCulling(set);
 }
 
 } /* namespace lol */

src/gpu/renderer.cpp

@@ -14,7 +14,22 @@
 
 #include <cstdlib>
 
+#if defined _XBOX
+#   include <xtl.h>
+#   undef near /* Fuck Microsoft */
+#   undef far /* Fuck Microsoft again */
+#elif defined _WIN32
+#   if defined USE_D3D9
+#      include <d3d9.h>
+#   endif
+#   define WIN32_LEAN_AND_MEAN
+#   include <windows.h>
+#   undef near /* Fuck Microsoft */
+#   undef far /* Fuck Microsoft again */
+#endif
+
 #include "core.h"
+#include "lolgl.h"
 
 namespace lol
 {
@@ -32,7 +47,7 @@ class RendererData
     friend class Renderer;
 
 private:
-    bool m_blend;
+    bool m_blend, m_depth_test, m_face_culling;
 };
 
 /*
@@ -43,6 +58,13 @@ Renderer::Renderer()
   : m_data(new RendererData())
 {
     m_data->m_blend = false;
+    SetAlphaBlend(true);
+
+    m_data->m_depth_test = false;
+    SetDepthTest(true);
+
+    m_data->m_face_culling = false;
+    SetFaceCulling(true);
 }
 
 Renderer::~Renderer()
@@ -50,25 +72,88 @@ Renderer::~Renderer()
     delete m_data;
 }
 
-void Renderer::SetBlendState(bool set)
+/*
+ * Alpha blending
+ */
+
+void Renderer::SetAlphaBlend(bool set)
 {
     if (m_data->m_blend == set)
         return;
 
     m_data->m_blend = set;
+
+#if defined USE_D3D9 || defined _XBOX
+#   define STR0(x) #x
+#   define STR(x) STR0(x)
+#   pragma message(__FILE__ "(" STR(__LINE__) "): warning: Renderer::SetAlphaBlend() not implemented")
+#else
     if (set)
-    {
+        glEnable(GL_BLEND);
+    else
+        glDisable(GL_BLEND);
+#endif
+}
+
+bool Renderer::GetAlphaBlend() const
+{
+    return m_data->m_blend;
+}
 
-    }
+/*
+ * Depth test
+ */
+
+void Renderer::SetDepthTest(bool set)
+{
+    if (m_data->m_depth_test == set)
+        return;
+
+    m_data->m_depth_test = set;
+
+#if defined USE_D3D9 || defined _XBOX
+#   define STR0(x) #x
+#   define STR(x) STR0(x)
+#   pragma message(__FILE__ "(" STR(__LINE__) "): warning: Renderer::SetDepthTest() not implemented")
+#else
+    if (set)
+        glEnable(GL_DEPTH_TEST);
     else
-    {
+        glDisable(GL_DEPTH_TEST);
+#endif
+}
 
-    }
+bool Renderer::GetDepthTest() const
+{
+    return m_data->m_depth_test;
 }
 
-bool Renderer::GetBlendState() const
+/*
+ * Face culling
+ */
+
+void Renderer::SetFaceCulling(bool set)
 {
-    return m_data->m_blend;
+    if (m_data->m_face_culling == set)
+        return;
+
+    m_data->m_face_culling = set;
+
+#if defined USE_D3D9 || defined _XBOX
+#   define STR0(x) #x
+#   define STR(x) STR0(x)
+#   pragma message(__FILE__ "(" STR(__LINE__) "): warning: Renderer::SetFaceCulling() not implemented")
+#else
+    if (set)
+        glEnable(GL_CULL_FACE);
+    else
+        glDisable(GL_CULL_FACE);
+#endif
+}
+
+bool Renderer::GetFaceCulling() const
+{
+    return m_data->m_face_culling;
 }
 
 } /* namespace lol */

src/lol/gpu/rendercontext.h

@@ -27,7 +27,9 @@ public:
     RenderContext();
     ~RenderContext();
 
-    void SetBlendState(bool set);
+    void SetAlphaBlend(bool set);
+    void SetDepthTest(bool set);
+    void SetFaceCulling(bool set);
 
 private:
     RenderContextData *m_data;

src/lol/gpu/renderer.h

@@ -27,8 +27,14 @@ public:
     Renderer();
     ~Renderer();
 
-    void SetBlendState(bool set);
+    void SetAlphaBlend(bool set);
-    bool GetBlendState() const;
+    bool GetAlphaBlend() const;
+
+    void SetDepthTest(bool set);
+    bool GetDepthTest() const;
+
+    void SetFaceCulling(bool set);
+    bool GetFaceCulling() const;
 
 private:
     RendererData *m_data;

src/ticker.cpp

@@ -389,11 +389,7 @@ void TickerData::DrawThreadTick()
             Scene::GetDefault()->Reset();
             Video::Clear(ClearMask::All);
             break;
-        case Entity::DRAWGROUP_HUD:
-            Video::SetDepth(false);
-            break;
         default:
-            Video::SetDepth(true);
             break;
         }
 

src/video.cpp

@@ -52,8 +52,6 @@ private:
     static mat4 proj_matrix;
     static ivec2 saved_viewport;
     static DebugRenderMode render_mode;
-    static bool face_culling;
-    static bool alpha_blend;
 #if defined USE_D3D9 || defined _XBOX
 #   if defined USE_D3D9
     static IDirect3D9 *d3d_ctx;
@@ -70,8 +68,6 @@ private:
 mat4 VideoData::proj_matrix;
 ivec2 VideoData::saved_viewport(0, 0);
 DebugRenderMode VideoData::render_mode = DebugRenderMode::Default;
-bool VideoData::face_culling = true;
-bool VideoData::alpha_blend = true;
 
 #if defined USE_D3D9 || defined _XBOX
 #   if defined USE_D3D9
@@ -91,8 +87,6 @@ float VideoData::clear_depth;
 
 void Video::Setup(ivec2 size)
 {
-    g_renderer = new Renderer();
-
 #if defined USE_D3D9 || defined _XBOX
     VideoData::d3d_ctx = Direct3DCreate9(D3D_SDK_VERSION);
     if (!VideoData::d3d_ctx)
@@ -158,10 +152,11 @@ void Video::Setup(ivec2 size)
 #   endif
 #endif
 
+    g_renderer = new Renderer();
+
     /* Initialise reasonable scene default properties */
     SetClearColor(vec4(0.1f, 0.2f, 0.3f, 1.0f));
     SetClearDepth(1.f);
-    SetAlphaBlend(true);
     SetDebugRenderMode(DebugRenderMode::Default);
 }
 
@@ -238,60 +233,6 @@ void Video::SetFov(float theta)
     }
 }
 
-void Video::SetDepth(bool set)
-{
-#if defined USE_D3D9 || defined _XBOX
-#   define STR0(x) #x
-#   define STR(x) STR0(x)
-#   pragma message(__FILE__ "(" STR(__LINE__) "): warning: Video::SetDepth() not implemented")
-#else
-    if (set)
-        glEnable(GL_DEPTH_TEST);
-    else
-        glDisable(GL_DEPTH_TEST);
-#endif
-}
-
-void Video::SetFaceCulling(bool set)
-{
-#if defined USE_D3D9 || defined _XBOX
-#   define STR0(x) #x
-#   define STR(x) STR0(x)
-#   pragma message(__FILE__ "(" STR(__LINE__) "): warning: Video::SetFaceCulling() not implemented")
-#else
-    VideoData::face_culling = set;
-    if (set)
-        glEnable(GL_CULL_FACE);
-    else
-        glDisable(GL_CULL_FACE);
-#endif
-}
-
-bool Video::HasFaceCulling()
-{
-    return VideoData::face_culling;
-}
-
-void Video::SetAlphaBlend(bool set)
-{
-#if defined USE_D3D9 || defined _XBOX
-#   define STR0(x) #x
-#   define STR(x) STR0(x)
-#   pragma message(__FILE__ "(" STR(__LINE__) "): warning: Video::SetAlphaBlend() not implemented")
-#else
-    VideoData::alpha_blend = set;
-    if (set)
-        glEnable(GL_BLEND);
-    else
-        glDisable(GL_BLEND);
-#endif
-}
-
-bool Video::HasAlphaBlend()
-{
-    return VideoData::alpha_blend;
-}
-
 void Video::SetClearColor(vec4 color)
 {
 #if defined USE_D3D9 || defined _XBOX
@@ -328,10 +269,10 @@ void Video::SetDebugRenderMode(DebugRenderMode d)
 #elif defined HAVE_GLES_2X
             glEnable(GL_CULL_FACE);
 #else
-            if (VideoData::render_mode == d && glIsEnabled(GL_CULL_FACE) == GL_TRUE)
+//            if (VideoData::render_mode == d && glIsEnabled(GL_CULL_FACE) == GL_TRUE)
-                SetFaceCulling(false);
+//                SetFaceCulling(false);
-            else
+//            else
-                SetFaceCulling(true);
+//                SetFaceCulling(true);
             glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
 #endif
             break;
@@ -342,14 +283,14 @@ void Video::SetDebugRenderMode(DebugRenderMode d)
             {
 #if defined USE_D3D9 || defined _XBOX
 #else
-                SetFaceCulling(!VideoData::face_culling);
+//                SetFaceCulling(!VideoData::face_culling);
 #endif
             }
             else
             {
 #if defined USE_D3D9 || defined _XBOX
 #else
-                SetFaceCulling(false);
+//                SetFaceCulling(false);
 #endif
             }
 #if defined USE_D3D9 || defined _XBOX

src/video.h

@@ -71,11 +71,6 @@ public:
     static void SetCustomSize(ivec2 size);
     static void RestoreSize();
     static void SetFov(float theta);
-    static void SetDepth(bool set);
-    static void SetFaceCulling(bool set);
-    static bool HasFaceCulling();
-    static void SetAlphaBlend(bool set);
-    static bool HasAlphaBlend();
     static void SetClearColor(vec4 color);
     static void SetClearDepth(float f);
     static void SetDebugRenderMode(DebugRenderMode d);