Add a system for creating Pipelines from loadable templates

[libs/gl.git] / source / pipelinetemplate.cpp

diff --git a/source/pipelinetemplate.cpp b/source/pipelinetemplate.cpp
new file mode 100644 (file)
index 0000000..6dbfd0a
--- /dev/null
+++ b/source/pipelinetemplate.cpp
@@ -0,0 +1,161 @@
+#include <msp/core/maputils.h>
+#include <msp/datafile/collection.h>
+#include "blend.h"
+#include "bloom.h"
+#include "colorcurve.h"
+#include "lighting.h"
+#include "pipelinetemplate.h"
+#include "tests.h"
+
+using namespace std;
+
+namespace Msp {
+namespace GL {
+
+PipelineTemplate::PipelineTemplate():
+       hdr(false),
+       required_multisample(0),
+       max_multisample(0)
+{ }
+
+
+PipelineTemplate::Pass::~Pass()
+{ }
+
+
+PipelineTemplate::Loader::Loader(PipelineTemplate &t):
+       DataFile::CollectionObjectLoader<PipelineTemplate>(t, 0)
+{
+       init();
+}
+
+PipelineTemplate::Loader::Loader(PipelineTemplate &t, Collection &c):
+       DataFile::CollectionObjectLoader<PipelineTemplate>(t, &c)
+{
+       init();
+}
+
+void PipelineTemplate::Loader::init()
+{
+       add("bloom", &Loader::postprocessor<Bloom>);
+       add("colorcurve", &Loader::postprocessor<ColorCurve>);
+       add("hdr", &PipelineTemplate::hdr);
+       add("multisample", &Loader::multisample);
+       add("multisample", &Loader::multisample_range);
+       add("pass", &Loader::pass);
+}
+
+void PipelineTemplate::Loader::multisample(unsigned samples)
+{
+       obj.required_multisample = samples;
+       obj.max_multisample = samples;
+}
+
+void PipelineTemplate::Loader::multisample_range(unsigned req, unsigned max)
+{
+       obj.required_multisample = req;
+       obj.max_multisample = max;
+}
+
+void PipelineTemplate::Loader::pass(const string &tag, const string &rend)
+{
+       Pass pss;;
+       pss.tag = tag;
+       pss.renderable_name = rend;
+       if(coll)
+               load_sub(pss, *coll);
+       else
+               load_sub(pss);
+
+       obj.passes.push_back(pss);
+}
+
+template<typename T>
+void PipelineTemplate::Loader::postprocessor()
+{
+       RefPtr<typename T::Template> postproc = new typename T::Template;
+       load_sub(*postproc);
+       obj.postprocessors.push_back(postproc.release());
+}
+
+
+PipelineTemplate::Pass::Loader::Loader(Pass &p):
+       DataFile::CollectionObjectLoader<Pass>(p, 0)
+{
+       init();
+}
+
+PipelineTemplate::Pass::Loader::Loader(Pass &p, Collection &c):
+       DataFile::CollectionObjectLoader<Pass>(p, &c)
+{
+       init();
+}
+
+void PipelineTemplate::Pass::Loader::init()
+{
+       add("blend", &Loader::blend);
+       add("blend", &Loader::blend_predefined);
+       add("depth_test", &Loader::depth_test);
+       add("depth_test", &Loader::depth_test_predefined);
+       add("lighting", &Loader::lighting);
+       add("lighting", &Loader::lighting_inline);
+}
+
+void PipelineTemplate::Pass::Loader::blend_predefined(const string &name)
+{
+       const Blend *blend = 0;
+       if(name=="alpha")
+               blend = &Blend::alpha();
+       else if(name=="additive")
+               blend = &Blend::additive();
+       else if(name=="additive_alpha")
+               blend = &Blend::additive_alpha();
+       else
+               throw key_error(name);
+
+       obj.blend = blend;
+       obj.blend.keep();
+}
+
+void PipelineTemplate::Pass::Loader::blend(BlendFactor src, BlendFactor dest)
+{
+       obj.blend = new Blend(src, dest);
+}
+
+void PipelineTemplate::Pass::Loader::depth_test_predefined(const string &name)
+{
+       const DepthTest *dtest = 0;
+       if(name=="lequal")
+               dtest = &DepthTest::lequal();
+       else
+               throw key_error(name);
+
+       obj.depth_test = dtest;
+       obj.depth_test.keep();
+}
+
+void PipelineTemplate::Pass::Loader::depth_test(Predicate pred)
+{
+       obj.depth_test = new DepthTest(pred);
+}
+
+void PipelineTemplate::Pass::Loader::lighting_inline()
+{
+       RefPtr<Lighting> lightn = new Lighting;
+       load_sub(*lightn);
+       obj.lighting = lightn;
+}
+
+void PipelineTemplate::Pass::Loader::lighting(const string &name)
+{
+       obj.lighting = &get_collection().get<Lighting>(name);
+       obj.lighting.keep();
+}
+
+/*void PipelineTemplate::Pass::Loader::scene(const string &name)
+{
+       obj.default_renderable = get_collection().get<Scene>(name);
+}*/
+
+} // namespace GL
+} // namespace Msp