X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Frender%2Fsequence.cpp;h=7a964c870d39e2bbe40a9cbf4a2571d1e1f40843;hp=d5b3ae94f9634a827865d9cdec0c11d2224fbb22;hb=006bdb4f8660098fc524dcca80b24c943c65b249;hpb=31ae3e3c4a28ac2ec97cc3efaa25adbf1511aadc

diff --git a/source/render/sequence.cpp b/source/render/sequence.cpp
index d5b3ae94..7a964c87 100644
--- a/source/render/sequence.cpp
+++ b/source/render/sequence.cpp
@@ -13,29 +13,35 @@ using namespace std;
 namespace Msp {
 namespace GL {
 
+Sequence::Sequence():
+	width(0),
+	height(0),
+	target{0, 0},
+	target_ms(0),
+	clear_enabled(false),
+	clear_depth(1.0f),
+	clear_stencil(0)
+{ }
+
 Sequence::Sequence(unsigned w, unsigned h, const FrameFormat &f):
 	width(w),
 	height(h),
-	target_format(f)
+	target_format(f),
+	target_ms(0),
+	clear_enabled(false),
+	clear_depth(1.0f),
+	clear_stencil(0)
 {
-	if(!target_format.empty())
-	{
-		FrameFormat postproc_fmt = target_format;
-		postproc_fmt.set_samples(1);
-		target[0] = new RenderTarget(width, height, postproc_fmt);
-		target[1] = new RenderTarget(width, height, postproc_fmt);
-
-		if(target_format.get_samples()>1)
-			target_ms = new RenderTarget(width, height, target_format);
-		else
-			target_ms = 0;
-	}
-	else
-	{
-		target_ms = 0;
-		target[0] = 0;
-		target[1] = 0;
-	}
+	if(target_format.empty())
+		throw invalid_argument("Sequence::Sequence");
+
+	FrameFormat postproc_fmt = target_format;
+	postproc_fmt.set_samples(1);
+	target[0] = new RenderTarget(width, height, postproc_fmt);
+	target[1] = new RenderTarget(width, height, postproc_fmt);
+
+	if(target_format.get_samples()>1)
+		target_ms = new RenderTarget(width, height, target_format);
 }
 
 Sequence::~Sequence()
@@ -48,6 +54,29 @@ Sequence::~Sequence()
 	delete target_ms;
 }
 
+void Sequence::set_clear_enabled(bool c)
+{
+	clear_enabled = c;
+}
+
+void Sequence::set_clear_colors(const vector<Color> &c)
+{
+	clear_enabled = true;
+	clear_colors = c;
+}
+
+void Sequence::set_clear_depth(float d)
+{
+	clear_enabled = true;
+	clear_depth = d;
+}
+
+void Sequence::set_clear_stencil(int s)
+{
+	clear_enabled = true;
+	clear_stencil = s;
+}
+
 Sequence::Step &Sequence::add_step(Tag tag, Renderable &r)
 {
 	steps.push_back(Step(tag, &r));
@@ -99,9 +128,31 @@ void Sequence::render(Renderer &renderer, Tag tag) const
 	const Framebuffer *out_fbo = renderer.get_framebuffer();
 
 	if(target[0])
-	{
 		renderer.set_framebuffer(&(target_ms ? target_ms : target[0])->get_framebuffer());
-		renderer.clear();
+
+	if(clear_enabled)
+	{
+		const Framebuffer *target_fbo = renderer.get_framebuffer();
+		if(!target_fbo)
+			throw invalid_operation("Sequence::render");
+
+		const FrameFormat &format = target_fbo->get_format();
+		ClearValue clear_values[7];
+		unsigned i = 0;
+		Color default_color = (clear_colors.empty() ? Color(0.0f, 0.0f, 0.0f, 0.0f) : clear_colors.front());
+		ClearValue *cv = clear_values;
+		for(FrameAttachment a: format)
+		{
+			if(get_attach_point(a)==get_attach_point(DEPTH_ATTACHMENT))
+				cv->depth_stencil.depth = clear_depth;
+			else if(get_attach_point(a)==get_attach_point(STENCIL_ATTACHMENT))
+				cv->depth_stencil.stencil = clear_stencil;
+			else
+				cv->color = (i<clear_colors.size() ? clear_colors[i++] : default_color);
+			++cv;
+		}
+
+		renderer.clear(clear_values);
 	}
 
 	for(const Step &s: steps)