*大小写

1 files changed, 41 insertions, 0 deletions

diff --git a/Source/Asura.Engine/graphics/canvas.cpp b/Source/Asura.Engine/graphics/canvas.cpp
new file mode 100644
index 0000000..61787b6
--- /dev/null
+++ b/Source/Asura.Engine/graphics/canvas.cpp
@@ -0,0 +1,41 @@
+#include "Canvas.h"
+
+namespace AsuraEngine
+{
+	namespace Graphics
+	{
+
+		Canvas::Canvas()
+			: Texture() 
+			, mWidth(0)
+			, mHeight(0)
+		{
+			glGenFramebuffers(1, &mFBO);
+			GLint current_fbo;
+			glGetIntegerv(GL_DRAW_FRAMEBUFFER_BINDING, &current_fbo);
+			glBindFramebuffer(GL_FRAMEBUFFER, mFBO);
+			glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mTextureHandle, 0);
+			glBindFramebuffer(GL_FRAMEBUFFER, current_fbo);
+		}
+
+		void Canvas::SetSize(uint w, uint h)
+		{
+			GLint current_tex; 
+			glGetIntegerv(GL_TEXTURE_BINDING_2D, &current_tex);
+			glBindTexture(GL_TEXTURE_2D, mTextureHandle);
+
+			glBindTexture(GL_TEXTURE_2D, current_tex);
+		}
+
+		void Canvas::Bind()
+		{
+
+		}
+
+		void Canvas::Unbind()
+		{
+
+		}
+
+	}
+}
\ No newline at end of file