X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;ds=sidebyside;f=source%2Fcore%2Fframebuffer.cpp;h=01a4107494387cac61ce8c46e90dd7234e07d5b4;hb=d6122b75b00c0889a54536b5cea971d08184af8f;hp=1dd2f61f9bab10139772b8619075370df41b2849;hpb=ad574f042d59513eec36af64c38aaf9abe6deed2;p=libs%2Fgl.git

diff --git a/source/core/framebuffer.cpp b/source/core/framebuffer.cpp
index 1dd2f61f..01a41074 100644
--- a/source/core/framebuffer.cpp
+++ b/source/core/framebuffer.cpp
@@ -34,6 +34,24 @@ Framebuffer::Framebuffer(unsigned i):
 	if(id)
 		throw invalid_argument("System framebuffer must have id 0");
 
+	if(EXT_framebuffer_object)
+	{
+		int value;
+		glGetFramebufferAttachmentParameteriv(GL_FRAMEBUFFER, GL_BACK, GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE, &value);
+		if(value==GL_NONE)
+			glGetFramebufferAttachmentParameteriv(GL_FRAMEBUFFER, GL_FRONT, GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE, &value);
+		if(value!=GL_NONE)
+			format = (format,COLOR_ATTACHMENT);
+
+		glGetFramebufferAttachmentParameteriv(GL_FRAMEBUFFER, GL_DEPTH, GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE, &value);
+		if(value!=GL_NONE)
+			format = (format,DEPTH_ATTACHMENT);
+
+		glGetFramebufferAttachmentParameteriv(GL_FRAMEBUFFER, GL_STENCIL, GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE, &value);
+		if(value!=GL_NONE)
+			format = (format,STENCIL_ATTACHMENT);
+	}
+
 	int view[4];
 	glGetIntegerv(GL_VIEWPORT, view);
 	width = view[2];
@@ -80,7 +98,7 @@ Framebuffer::~Framebuffer()
 
 void Framebuffer::set_format(const FrameFormat &fmt)
 {
-	if(!format.empty())
+	if(!format.empty() || !id)
 		throw invalid_operation("Framebuffer::set_format");
 	if(fmt.empty())
 		throw invalid_argument("Framebuffer::set_format");