From 250e30d73f09e9da2b5a81d0fbae63744ae12a73 Mon Sep 17 00:00:00 2001
From: chai <chaifix@163.com>
Date: Tue, 2 Apr 2019 08:47:15 +0800
Subject: *misc

---
 source/modules/asura-core/graphics/texture.h | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

(limited to 'source/modules/asura-core/graphics/texture.h')

diff --git a/source/modules/asura-core/graphics/texture.h b/source/modules/asura-core/graphics/texture.h
index 02d3407..f19f3a7 100644
--- a/source/modules/asura-core/graphics/texture.h
+++ b/source/modules/asura-core/graphics/texture.h
@@ -41,6 +41,17 @@ namespace AsuraEngine
 			COLOR_FORMAT_RGBA32F, ///< RGBA都是32bits float
 		};
 
+		///
+		/// 纹理格式，GPU内部和CPU外部格式
+		///
+		struct TextureFormat
+		{
+			GLenum internalformat; // GPU内部格式
+
+			GLenum externalformat; // CPU外部格式
+			GLenum type;           // 外部格式每个channel数值类型
+		};
+
 		///
 		/// 2D纹理抽象类，在2d mesh和render target中被使用。Texture的渲染原点在左上角，游戏里
 		/// 面的上层会以笛卡尔坐标系为标准。在Editor里面界面和组件也是以左上角为原点，这样是为了
@@ -94,6 +105,13 @@ namespace AsuraEngine
 
 			//----------------------------------------------------------------------------//
 
+			///
+			/// 转换color format为texture format。
+			///
+			TextureFormat ConvertColorFormat(const ColorFormat& colorformat);
+
+			//----------------------------------------------------------------------------//
+
 			GLuint     mTex;
 
 			FilterMode mMinFilter;
-- 
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