From bda9d88e84a1dccd4df978205a6ba1f141178b0c Mon Sep 17 00:00:00 2001
From: chai <chaifix@163.com>
Date: Sat, 19 May 2018 00:09:44 +0800
Subject: =?UTF-8?q?=E5=A2=9E=E5=8A=A0=E5=9E=82=E7=9B=B4=E5=90=8C=E6=AD=A5?=
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---
 src/libjin/render/graphics.h |  1 +
 src/libjin/render/window.cpp | 28 +++++++++++++---------------
 src/libjin/render/window.h   | 11 ++++-------
 3 files changed, 18 insertions(+), 22 deletions(-)

(limited to 'src/libjin/render')

diff --git a/src/libjin/render/graphics.h b/src/libjin/render/graphics.h
index 242b19d..a3125c5 100644
--- a/src/libjin/render/graphics.h
+++ b/src/libjin/render/graphics.h
@@ -34,4 +34,5 @@ namespace render
     extern void polygon(RENDER_MODE mode, float* p, int count);
 }
 }
+
 #endif
diff --git a/src/libjin/render/window.cpp b/src/libjin/render/window.cpp
index 0d53654..0179877 100644
--- a/src/libjin/render/window.cpp
+++ b/src/libjin/render/window.cpp
@@ -32,40 +32,32 @@ namespace render
         {
             SDL_GL_DeleteContext(ctx);
         }
-        
+
         SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
         SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 1);
         SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 8);
         SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 8);
         SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 8);
         SDL_GL_SetAttribute(SDL_GL_ALPHA_SIZE, 8);
+		SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 8);
         SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
 
-        Uint32 flags = SDL_WINDOW_SHOWN | SDL_WINDOW_OPENGL ;
-
-        int wx = SDL_WINDOWPOS_UNDEFINED,
-            wy = SDL_WINDOWPOS_UNDEFINED;
+		int wx = SDL_WINDOWPOS_UNDEFINED,
+			wy = SDL_WINDOWPOS_UNDEFINED;
 
-        /* Create window */
-        wnd = SDL_CreateWindow(t, wx, wy, w, h, flags);
-
-        // Create an opengl context 
+		wnd = SDL_CreateWindow(t, wx, wy, w, h, SDL_WINDOW_SHOWN | SDL_WINDOW_OPENGL);
         ctx = SDL_GL_CreateContext(wnd);
+		// 开启垂直同步后降低GPU占用率8%->4%
+		SDL_GL_SetSwapInterval(1);
         SDL_GL_MakeCurrent(wnd, ctx);
-
-        // Default clear color
         glClearColor(0.f, 0.f, 0.f, 1.f);
         glClear(GL_COLOR_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
-
-        // Default render color
         glColor4f(1, 1, 1, 1);
-
         /**
         * Set the viewport to top-left corner. 
         * Bind to the default render buffer. 
         */ 
         Canvas::unbind();
-        
         // Swap window buffer
         swapBuffers();
     }
@@ -80,5 +72,11 @@ namespace render
         return ctx; 
     }
 
+	inline void Window::swapBuffers()
+	{
+		if (wnd)
+			SDL_GL_SwapWindow(wnd);
+	}
+
 }
 }
\ No newline at end of file
diff --git a/src/libjin/render/window.h b/src/libjin/render/window.h
index f29c82d..515ffff 100644
--- a/src/libjin/render/window.h
+++ b/src/libjin/render/window.h
@@ -20,21 +20,18 @@ namespace render
             return (g_wnd ? g_wnd : (g_wnd = new Window()));
         }
 
-        inline int Window::getW()
+        inline int getW()
         {
             return w;
         }
 
-        inline int Window::getH()
+        inline int getH()
         {
             return h;
         }
 
-        inline void Window::swapBuffers()
-        {
-            if (wnd)
-                SDL_GL_SwapWindow(wnd);
-        }
+		inline void swapBuffers();
+
     private: 
 
         Window(); 
-- 
cgit v1.1-26-g67d0