*misc

1 files changed, 24 insertions, 14 deletions

diff --git a/source/modules/asura-core/graphics/gpu_buffer.cpp b/source/modules/asura-core/graphics/gpu_buffer.cpp
index c796bb0..6e6aead 100644
--- a/source/modules/asura-core/graphics/gpu_buffer.cpp
+++ b/source/modules/asura-core/graphics/gpu_buffer.cpp
@@ -34,19 +34,6 @@ namespace AsuraEngine
 				mUsage = GL_STATIC_DRAW;
 				break;
 			}
-			gl.WipeError();
-			glGenBuffers(1, &mBuffer);
-			if (mBuffer == 0)
-				throw Exception("OpenGL glGenBuffers failed.");
-			glBindBuffer(mTarget, mBuffer);
-			glBufferData(mTarget, size, NULL, mUsage); // ��ʼ����СΪsize�Ļ���
-			if (gl.HasError())
-				throw Exception("OpenGL glBufferData failed. Errorcode=%d.", gl.GetError());
-			glBindBuffer(mTarget, 0);
-#if ASURA_DEBUG 
-			mData = (byte*)malloc(size);
-			memset(mData, 0, size);
-#endif
 			mSize = size;
 		}
 
@@ -63,10 +50,33 @@ namespace AsuraEngine
 		{
 			if (data == nullptr)
 				return false;
-			glBindBuffer(mTarget, mBuffer);
+			if (mBuffer == 0)
+			{
+				// ��ʼ��
+				gl.WipeError();
+				glGenBuffers(1, &mBuffer);
+				if (mBuffer == 0)
+					throw Exception("OpenGL glGenBuffers failed.");
+				glBindBuffer(mTarget, mBuffer);
+				glBufferData(mTarget, mSize, NULL, mUsage); // ��ʼ����СΪsize�Ļ���
+				if (gl.HasError())
+				{
+					glBindBuffer(mTarget, 0);
+					throw Exception("OpenGL glBufferData failed. Errorcode=%d.", gl.GetError());
+				}
+#if ASURA_DEBUG 
+				mData = (byte*)malloc(size);
+				memset(mData, 0, size);
+#endif
+			}
+			else
+				glBindBuffer(mTarget, mBuffer);
 			glBufferSubData(mTarget, offset, size, data);
 			if (gl.HasError())
+			{
+				glBindBuffer(mTarget, 0);
 				throw Exception("OpenGL glBufferSubData failed. Errorcode=%d.", gl.GetError());
+			}
 			glBindBuffer(mTarget, 0);
 #if ASURA_DEBUG
 			// ����һ�ݣ�������