X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Frenderer.cpp;h=bac7b6b854bcc2ea1c51d684b2ff700589e2d9a8;hb=b152e4f63170e8ccd6c9fb9397964c628fb6efeb;hp=606dd341336fcbc8668bc8724e38898f9fe084bb;hpb=ce657d3b7783db9f3450162fbf07210ea1c8c661;p=libs%2Fgl.git

diff --git a/source/renderer.cpp b/source/renderer.cpp
index 606dd341..bac7b6b8 100644
--- a/source/renderer.cpp
+++ b/source/renderer.cpp
@@ -22,7 +22,8 @@ namespace GL {
 
 Renderer::Renderer(const Camera *c):
 	mtx_stack(*this),
-	mtx_changed(false),
+	mtx_changed(true),
+	matrices_loaded(false),
 	camera(c),
 	state_stack(1),
 	lighting_changed(false),
@@ -32,11 +33,8 @@ Renderer::Renderer(const Camera *c):
 	shdata_stack.reserve(32);
 	state = &state_stack.back();
 
-	MatrixStack::modelview().push();
 	if(camera)
 	{
-		MatrixStack::projection().push();
-		camera->apply();
 		mtx_stack.load(camera->get_matrix());
 		standard_shdata.uniform("projection_matrix", camera->get_projection_matrix());
 	}
@@ -49,18 +47,7 @@ Renderer::Renderer(const Camera *c):
 
 Renderer::~Renderer()
 {
-	if(camera)
-		MatrixStack::projection().pop();
-	MatrixStack::modelview().pop();
-
-	Mesh::unbind();
-	Texturing::unbind();
-	Texture::unbind_from(0);
-	Material::unbind();
-	Lighting::unbind();
-	Program::unbind();
-	Buffer::unbind_from(ELEMENT_ARRAY_BUFFER);
-	WindingTest::unbind();
+	end();
 }
 
 void Renderer::set_texture(const Texture *t)
@@ -157,6 +144,32 @@ void Renderer::escape()
 {
 	apply_state();
 	Buffer::unbind_from(ELEMENT_ARRAY_BUFFER);
+	matrices_loaded = false;
+}
+
+void Renderer::end()
+{
+	if(state_stack.size()>1)
+		throw invalid_operation("Renderer::end");
+
+	if(matrices_loaded)
+	{
+		if(camera)
+			MatrixStack::projection().pop();
+		MatrixStack::modelview().pop();
+		matrices_loaded = false;
+	}
+
+	Mesh::unbind();
+	Texturing::unbind();
+	Texture::unbind_from(0);
+	Material::unbind();
+	Lighting::unbind();
+	Program::unbind();
+	Buffer::unbind_from(ELEMENT_ARRAY_BUFFER);
+	WindingTest::unbind();
+
+	*state = State();
 }
 
 void Renderer::exclude(const Renderable &renderable)
@@ -282,10 +295,24 @@ void Renderer::apply_state()
 	else
 		WindingTest::unbind();
 
-	if(legacy_bindings && mtx_changed)
+	if(legacy_bindings)
 	{
-		MatrixStack::modelview() = mtx_stack.top();
-		mtx_changed = false;
+		if(!matrices_loaded)
+		{
+			MatrixStack::modelview().push();
+			if(camera)
+			{
+				MatrixStack::projection().push();
+				camera->apply();
+			}
+			matrices_loaded = true;
+		}
+
+		if(mtx_changed)
+		{
+			MatrixStack::modelview() = mtx_stack.top();
+			mtx_changed = false;
+		}
 	}
 }