From 084623519e95f0ab0cf4bc328b5fa736d679c5bd Mon Sep 17 00:00:00 2001
From: chai <chaifix@163.com>
Date: Wed, 31 Jul 2019 21:35:12 +0800
Subject: =?UTF-8?q?*=E4=BF=AE=E6=94=B9=E5=90=8D=E7=A7=B0=E7=A9=BA=E9=97=B4?=
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---
 source/modules/asura-core/graphics/canvas.cpp | 83 +++++++++++++--------------
 1 file changed, 41 insertions(+), 42 deletions(-)

(limited to 'source/modules/asura-core/graphics/canvas.cpp')

diff --git a/source/modules/asura-core/graphics/canvas.cpp b/source/modules/asura-core/graphics/canvas.cpp
index e922a51..60c8f87 100644
--- a/source/modules/asura-core/graphics/canvas.cpp
+++ b/source/modules/asura-core/graphics/canvas.cpp
@@ -1,50 +1,49 @@
 #include "Canvas.h"
 
-namespace AsuraEngine
+namespace_begin(AsuraEngine)
+namespace_begin(Graphics)
+
+Canvas::Canvas()
+	: m_Width(0)
+	, m_Height(0)
+	, m_FBO(0)
 {
-	namespace Graphics
-	{
+	// Fix: 等设置大小初始化时再申请framebuffer资源。
+	//glGenFramebuffers(1, &m_FBO);
+	//GLint current_fbo;
+	//glGetIntegerv(GL_DRAW_FRAMEBUFFER_BINDING, &current_fbo);
+	//glBindFramebuffer(GL_FRAMEBUFFER, m_FBO);
+	//glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, m_TexID, 0);
+	//glBindFramebuffer(GL_FRAMEBUFFER, current_fbo);
+}
 
-		Canvas::Canvas()
-			: m_Width(0)
-			, m_Height(0)
-			, m_FBO(0)
+void Canvas::SetSize(uint w, uint h)
+{
+	if (m_FBO == 0)
+	{
+		glGenFramebuffers(1, &m_FBO);
+		if (m_FBO == 0)
+			throw Exception("OpenGL glGenFramebuffers cannot generate frame buffer object.");
+		// 申请纹理
+		if (m_TexID == 0)
 		{
-			// Fix: 等设置大小初始化时再申请framebuffer资源。
-			//glGenFramebuffers(1, &m_FBO);
-			//GLint current_fbo;
-			//glGetIntegerv(GL_DRAW_FRAMEBUFFER_BINDING, &current_fbo);
-			//glBindFramebuffer(GL_FRAMEBUFFER, m_FBO);
-			//glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, m_TexID, 0);
-			//glBindFramebuffer(GL_FRAMEBUFFER, current_fbo);
+			glGenTextures(1, &m_TexID);
+			if (m_TexID == 0)
+				throw Exception("OpenGL glGenTextures cannot generate texture.");
 		}
+		GLint current_fbo;
+		glGetIntegerv(GL_DRAW_FRAMEBUFFER_BINDING, &current_fbo);
+		glBindFramebuffer(GL_FRAMEBUFFER, m_FBO);
+		glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, m_TexID, 0);
+		glBindFramebuffer(GL_FRAMEBUFFER, current_fbo);
+	}
+	GLint current_tex; 
+	glGetIntegerv(GL_TEXTURE_BINDING_2D, &current_tex);
+	glBindTexture(GL_TEXTURE_2D, m_TexID);
+	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
+	glBindTexture(GL_TEXTURE_2D, current_tex);
+}
 
-		void Canvas::SetSize(uint w, uint h)
-		{
-			if (m_FBO == 0)
-			{
-				glGenFramebuffers(1, &m_FBO);
-				if (m_FBO == 0)
-					throw Exception("OpenGL glGenFramebuffers cannot generate frame buffer object.");
-				// 申请纹理
-				if (m_TexID == 0)
-				{
-					glGenTextures(1, &m_TexID);
-					if (m_TexID == 0)
-						throw Exception("OpenGL glGenTextures cannot generate texture.");
-				}
-				GLint current_fbo;
-				glGetIntegerv(GL_DRAW_FRAMEBUFFER_BINDING, &current_fbo);
-				glBindFramebuffer(GL_FRAMEBUFFER, m_FBO);
-				glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, m_TexID, 0);
-				glBindFramebuffer(GL_FRAMEBUFFER, current_fbo);
-			}
-			GLint current_tex; 
-			glGetIntegerv(GL_TEXTURE_BINDING_2D, &current_tex);
-			glBindTexture(GL_TEXTURE_2D, m_TexID);
-			glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
-			glBindTexture(GL_TEXTURE_2D, current_tex);
-		}
+namespace_end
 
-	}
-}
\ No newline at end of file
+namespace_end
\ No newline at end of file
-- 
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