X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fcore%2Fframebuffer.cpp;h=45eaff656b65322a5d137133061e9e2ce35924ac;hp=613277233a84d78258fe40c2c585cbca24cf41bb;hb=HEAD;hpb=f19366d32cc29287a2730cfba90893e407754081

diff --git a/source/core/framebuffer.cpp b/source/core/framebuffer.cpp
index 61327723..4f30dbb1 100644
--- a/source/core/framebuffer.cpp
+++ b/source/core/framebuffer.cpp
@@ -16,21 +16,11 @@ framebuffer_incomplete::framebuffer_incomplete(const std::string &reason):
 
 
 Framebuffer::Framebuffer(bool s):
-	FramebufferBackend(s),
-	dirty(0)
-{
-	if(s)
-	{
-		format = get_system_format();
-		get_system_size(width, height);
-	}
-}
+	FramebufferBackend(s)
+{ }
 
 Framebuffer::Framebuffer():
-	FramebufferBackend(false),
-	width(0),
-	height(0),
-	dirty(0)
+	FramebufferBackend(false)
 { }
 
 Framebuffer::Framebuffer(FrameAttachment fa):
@@ -47,13 +37,14 @@ Framebuffer::Framebuffer(const FrameFormat &f):
 
 void Framebuffer::set_format(const FrameFormat &fmt)
 {
-	if(!format.empty() || !id)
+	if(!format.empty())
 		throw invalid_operation("Framebuffer::set_format");
 	if(fmt.empty() || !is_format_supported(fmt))
 		throw invalid_argument("Framebuffer::set_format");
 
 	format = fmt;
 	attachments.resize(format.size());
+	format_changed(format);
 }
 
 void Framebuffer::update() const
@@ -70,6 +61,7 @@ void Framebuffer::check_size()
 		{
 			unsigned w = 0;
 			unsigned h = 0;
+			unsigned l = 1;
 			if(const Texture2D *tex2d = dynamic_cast<const Texture2D *>(a.tex))
 			{
 				w = max(tex2d->get_width()>>a.level, 1U);
@@ -84,30 +76,34 @@ void Framebuffer::check_size()
 			{
 				w = max(tex3d->get_width()>>a.level, 1U);
 				h = max(tex3d->get_height()>>a.level, 1U);
+				l = (a.layer<0 ? tex3d->get_depth() : 1);
 			}
 			else if(const TextureCube *tex_cube = dynamic_cast<const TextureCube *>(a.tex))
 			{
 				w = max(tex_cube->get_size()>>a.level, 1U);
 				h = w;
+				l = (a.layer<0 ? 6 : 1);
 			}
 
 			if(first)
 			{
 				width = w;
 				height = h;
+				layers = l;
 				first = false;
 			}
 			else
 			{
 				width = min(width, w);
 				height = min(height, h);
+				layers = min(layers, l);
 			}
 		}
 }
 
-void Framebuffer::set_attachment(FrameAttachment attch, Texture &tex, unsigned level, int layer, unsigned samples)
+void Framebuffer::set_attachment(FrameAttachment attch, Texture &tex, Texture *res, unsigned level, int layer, unsigned samples)
 {
-	if(format.empty() || !id)
+	if(format.empty() || attachments.empty())
 		throw invalid_operation("Framebuffer::attach");
 
 	if((format.get_samples()>1 && samples!=format.get_samples()) || (format.get_samples()==1 && samples))
@@ -118,7 +114,7 @@ void Framebuffer::set_attachment(FrameAttachment attch, Texture &tex, unsigned l
 	{
 		if(a==attch)
 		{
-			attachments[i].set(tex, level, layer);
+			attachments[i].set(tex, res, level, layer);
 			dirty |= 1<<i;
 			check_size();
 			return;
@@ -131,39 +127,39 @@ void Framebuffer::set_attachment(FrameAttachment attch, Texture &tex, unsigned l
 
 void Framebuffer::attach(FrameAttachment attch, Texture2D &tex, unsigned level)
 {
-	set_attachment(make_typed_attachment(attch, tex.get_format()), tex, level, 0, 0);
+	set_attachment(make_typed_attachment(attch, tex.get_format()), tex, 0, level, 0, 0);
 }
 
-void Framebuffer::attach(FrameAttachment attch, Texture2DMultisample &tex)
+void Framebuffer::attach(FrameAttachment attch, Texture2DMultisample &tex, Texture2D *res)
 {
-	set_attachment(make_typed_attachment(attch, tex.get_format()), tex, 0, 0, tex.get_samples());
+	set_attachment(make_typed_attachment(attch, tex.get_format()), tex, res, 0, 0, tex.get_samples());
 }
 
 void Framebuffer::attach(FrameAttachment attch, Texture3D &tex, unsigned layer, unsigned level)
 {
-	set_attachment(make_typed_attachment(attch, tex.get_format()), tex, level, layer, 0);
+	set_attachment(make_typed_attachment(attch, tex.get_format()), tex, 0, level, layer, 0);
 }
 
 void Framebuffer::attach(FrameAttachment attch, TextureCube &tex, TextureCubeFace face, unsigned level)
 {
-	set_attachment(make_typed_attachment(attch, tex.get_format()), tex, level, face, 0);
+	set_attachment(make_typed_attachment(attch, tex.get_format()), tex, 0, level, face, 0);
 }
 
 void Framebuffer::attach_layered(FrameAttachment attch, Texture3D &tex, unsigned level)
 {
 	require_layered();
-	set_attachment(make_typed_attachment(attch, tex.get_format()), tex, level, -1, 0);
+	set_attachment(make_typed_attachment(attch, tex.get_format()), tex, 0, level, -1, 0);
 }
 
 void Framebuffer::attach_layered(FrameAttachment attch, TextureCube &tex, unsigned level)
 {
 	require_layered();
-	set_attachment(make_typed_attachment(attch, tex.get_format()), tex, level, -1, 0);
+	set_attachment(make_typed_attachment(attch, tex.get_format()), tex, 0, level, -1, 0);
 }
 
 void Framebuffer::detach(FrameAttachment attch)
 {
-	if(!id)
+	if(attachments.empty())
 		throw invalid_operation("Framebuffer::detach");
 
 	int i = format.index(attch);
@@ -175,20 +171,44 @@ void Framebuffer::detach(FrameAttachment attch)
 	}
 }
 
-void Framebuffer::resize(const WindowView &view)
+const Texture *Framebuffer::get_attachment(FrameAttachment attch) const
 {
-	if(id)
-		throw invalid_operation("Framebuffer::resize");
+	if(attachments.empty())
+		return 0;
 
-	width = view.get_width();
-	height = view.get_height();
+	int i = format.index(attch);
+	return (i>=0 ? attachments[i].tex : 0);
 }
 
-void Framebuffer::require_complete() const
+const Texture *Framebuffer::get_attachment(unsigned i) const
 {
-	if(!id)
-		return;
+	return (i<attachments.size() ? attachments[i].tex : 0);
+}
+
+const Texture *Framebuffer::get_resolve_attachment(FrameAttachment attch) const
+{
+	if(attachments.empty())
+		return 0;
 
+	int i = format.index(attch);
+	return (i>=0 ? attachments[i].resolve : 0);
+}
+
+const Texture *Framebuffer::get_resolve_attachment(unsigned i) const
+{
+	return (i<attachments.size() ? attachments[i].resolve : 0);
+}
+
+bool Framebuffer::has_resolve_attachments() const
+{
+	for(const Attachment &a: attachments)
+		if(a.resolve)
+			return true;
+	return false;
+}
+
+void Framebuffer::require_complete() const
+{
 	bool layered = (!attachments.empty() && attachments.front().layer<0);
 	for(const Attachment &a: attachments)
 	{
@@ -201,22 +221,11 @@ void Framebuffer::require_complete() const
 	FramebufferBackend::require_complete();
 }
 
-Framebuffer &Framebuffer::system()
-{
-	static Framebuffer sys_framebuf(true);
-	return sys_framebuf;
-}
-
-
-Framebuffer::Attachment::Attachment():
-	tex(0),
-	level(0),
-	layer(0)
-{ }
 
-void Framebuffer::Attachment::set(Texture &t, unsigned l, int z)
+void Framebuffer::Attachment::set(Texture &t, Texture *r, unsigned l, int z)
 {
 	tex = &t;
+	resolve = r;
 	level = l;
 	layer = z;
 }