X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fframebuffer.h;h=4fcfa9002c734ca6c05e1332a5775aea1e512633;hp=236d29e6a3dd65a8fddcf3bdc567b92530b80c21;hb=587b88ea9730cee089428b6491b9b166a1793173;hpb=6afbace895a7bbcf216ab8e48280ea0303ab5892

diff --git a/source/framebuffer.h b/source/framebuffer.h
index 236d29e6..4fcfa900 100644
--- a/source/framebuffer.h
+++ b/source/framebuffer.h
@@ -5,6 +5,8 @@
 #include "bindable.h"
 #include "gl.h"
 #include "texturecube.h"
+#include <msp/gl/extensions/ext_framebuffer_object.h>
+#include <msp/gl/extensions/msp_stereo_rendering.h>
 
 namespace Msp {
 namespace GL {
@@ -12,6 +14,7 @@ namespace GL {
 class Renderbuffer;
 class Texture;
 class Texture2D;
+class Texture3D;
 
 enum FramebufferAttachment
 {
@@ -39,8 +42,7 @@ enum BufferBits
 {
 	COLOR_BUFFER_BIT   = GL_COLOR_BUFFER_BIT,
 	DEPTH_BUFFER_BIT   = GL_DEPTH_BUFFER_BIT,
-	STENCIL_BUFFER_BIT = GL_STENCIL_BUFFER_BIT,
-	ACCUM_BUFFER_BIT   = GL_ACCUM_BUFFER_BIT
+	STENCIL_BUFFER_BIT = GL_STENCIL_BUFFER_BIT
 };
 
 enum RWBuffer
@@ -57,6 +59,13 @@ enum RWBuffer
 	FRONT_AND_BACK = GL_FRONT_AND_BACK
 };
 
+class framebuffer_incomplete: public std::runtime_error
+{
+public:
+	framebuffer_incomplete(FramebufferStatus);
+	virtual ~framebuffer_incomplete() throw() { }
+};
+
 /**
 Framebuffer objects can be used to perform offscreen rendering.  The most
 common application is rendering to a texture, which can then be used for
@@ -82,18 +91,29 @@ private:
 			Texture *tex;
 		};
 		unsigned level;
-		GLenum cube_face;
+		unsigned layer;
 
 		Attachment(FramebufferAttachment);
 		void set(Renderbuffer &);
-		void set(Texture &, GLenum, unsigned);
+		void set(Texture &, unsigned, unsigned);
 		void clear();
 	};
 
+	struct Viewport
+	{
+		int left;
+		int bottom;
+		unsigned width;
+		unsigned height;
+
+		Viewport();
+	};
+
 	unsigned id;
 	std::vector<Attachment> attachments;
 	unsigned width;
 	unsigned height;
+	Viewport view;
 	mutable unsigned dirty;
 
 	Framebuffer(unsigned);
@@ -111,6 +131,7 @@ private:
 public:
 	void attach(FramebufferAttachment attch, Renderbuffer &rbuf);
 	void attach(FramebufferAttachment attch, Texture2D &tex, unsigned level = 0);
+	void attach(FramebufferAttachment attch, Texture3D &tex, unsigned layer, unsigned level = 0);
 	void attach(FramebufferAttachment attch, TextureCube &tex, TextureCubeFace face, unsigned level = 0);
 	void detach(FramebufferAttachment attch);
 
@@ -119,6 +140,13 @@ public:
 	or one of the error status codes otherwise. */
 	FramebufferStatus check_status() const;
 
+	/** Ensures that the framebuffer is complete, throwing an exception if it
+	isn't. */
+	void require_complete() const;
+
+	void viewport(int, int, unsigned, unsigned);
+	void reset_viewport();
+
 	void clear(BufferBits);
 
 	/** Blits a region from another framebuffer into this one.  If the source