Initial implementation of Custom Shader Features.

Engine/source/shaderGen/customShaderFeature.cpp

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+//-----------------------------------------------------------------------------
+// Copyright (c) 2012 GarageGames, LLC
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+//-----------------------------------------------------------------------------
+
+#include "shadergen/CustomShaderFeature.h"
+#include "shaderGen/HLSL/customFeatureHLSL.h"
+
+#include "math/mathIO.h"
+#include "scene/sceneRenderState.h"
+#include "core/stream/bitStream.h"
+#include "materials/sceneData.h"
+#include "gfx/gfxDebugEvent.h"
+#include "gfx/gfxTransformSaver.h"
+#include "renderInstance/renderPassManager.h"
+
+
+IMPLEMENT_CONOBJECT(CustomShaderFeatureData);
+
+ConsoleDocClass(CustomShaderFeatureData,
+	"@brief An example scene object which renders using a callback.\n\n"
+	"This class implements a basic SceneObject that can exist in the world at a "
+	"3D position and render itself. Note that CustomShaderFeatureData handles its own "
+	"rendering by submitting itself as an ObjectRenderInst (see "
+	"renderInstance\renderPassmanager.h) along with a delegate for its render() "
+	"function. However, the preffered rendering method in the engine is to submit "
+	"a MeshRenderInst along with a Material, vertex buffer, primitive buffer, and "
+	"transform and allow the RenderMeshMgr handle the actual rendering. You can "
+	"see this implemented in RenderMeshExample.\n\n"
+	"See the C++ code for implementation details.\n\n"
+	"@ingroup Examples\n");
+
+//-----------------------------------------------------------------------------
+// Object setup and teardown
+//-----------------------------------------------------------------------------
+CustomShaderFeatureData::CustomShaderFeatureData()
+{
+}
+
+CustomShaderFeatureData::~CustomShaderFeatureData()
+{
+}
+
+//-----------------------------------------------------------------------------
+// Object Editing
+//-----------------------------------------------------------------------------
+void CustomShaderFeatureData::initPersistFields()
+{
+	// SceneObject already handles exposing the transform
+	Parent::initPersistFields();
+}
+
+bool CustomShaderFeatureData::onAdd()
+{
+	if (!Parent::onAdd())
+		return false;
+
+	mFeatureHLSL = new CustomFeatureHLSL();
+	mFeatureHLSL->mOwner = this;
+
+	return true;
+}
+
+void CustomShaderFeatureData::onRemove()
+{
+	Parent::onRemove();
+}
+
+//Shadergen setup functions
+void CustomShaderFeatureData::writeLine(String format, S32 argc, ConsoleValueRef *argv)
+{
+	/*mOnObject = onObject;
+	mArgc = argc;
+
+	mArgv = new ConsoleValueRef[argc];
+	for (int i = 0; i<argc; i++)
+	{
+		mArgv[i].value = new ConsoleValue();
+		mArgv[i].value->type = ConsoleValue::TypeInternalString;
+		mArgv[i].value->init();
+		if (argv)
+		{
+			mArgv[i].value->setStringValue((const char*)argv[i]);
+		}
+	}*/
+
+	mFeatureHLSL->writeLine(format, argc, argv);
+}
+
+/*//Actual shader processing
+void CustomShaderFeatureData::processVert(Vector<ShaderComponent*> &componentList,
+	const MaterialFeatureData &fd)
+{
+	mFeatureHLSL.processVert(componentList, fd);
+}
+
+void CustomShaderFeatureData::processPix(Vector<ShaderComponent*> &componentList,
+	const MaterialFeatureData &fd)
+{
+	mFeatureHLSL.processPix(componentList, fd);
+
+}
+
+void CustomShaderFeatureData::setTexData(Material::StageData &stageDat,
+	const MaterialFeatureData &fd,
+	RenderPassData &passData,
+	U32 &texIndex)
+{
+	mFeatureHLSL.setTexData(stageDat, fd, passData, texIndex);
+}*/
+
+/*DefineEngineMethod(CustomShaderFeatureData, newVar, void, (String name, String type), ("", ""),	"")
+{
+	object->newVar(name, type);
+}*/
+
+ConsoleMethod(CustomShaderFeatureData, writeLine, void, 3, 0, "( string format, string args... ) Dynamically call a method on an object.\n"
+	"@param method Name of method to call.\n"
+	"@param args Zero or more arguments for the method.\n"
+	"@return The result of the method call.")
+{
+	argv[1] = argv[2];
+	object->writeLine(argv[1], argc - 1, argv + 1);
+}