X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=simgear%2Fscene%2Fmaterial%2FTextureBuilder.cxx;h=f81f2b9bfaedb42eb035a9b9e0718a5560f35358;hb=d04cf4d8978866eb80a1639b6d4ddfe387338c77;hp=9103fe59ba099934f8512333da6acecbe631d05a;hpb=14e5e87a4d4f62f2fac873f5cee856b561f8568a;p=simgear.git

diff --git a/simgear/scene/material/TextureBuilder.cxx b/simgear/scene/material/TextureBuilder.cxx
index 9103fe59..f81f2b9b 100644
--- a/simgear/scene/material/TextureBuilder.cxx
+++ b/simgear/scene/material/TextureBuilder.cxx
@@ -20,15 +20,22 @@
 
 #include "TextureBuilder.hxx"
 
+#include "Pass.hxx"
+
+#include <osg/TexEnv>
+#include <osg/TexEnvCombine>
+#include <osg/TexGen>
 #include <osg/Texture1D>
 #include <osg/Texture2D>
 #include <osg/Texture3D>
 #include <osg/TextureRectangle>
 #include <osgDB/FileUtils>
 
+#include <boost/lexical_cast.hpp>
 #include <boost/tuple/tuple.hpp>
 #include <boost/tuple/tuple_comparison.hpp>
 
+#include <simgear/scene/model/SGReaderWriterXMLOptions.hxx>
 #include <simgear/scene/util/SGSceneFeatures.hxx>
 #include <simgear/scene/util/StateAttributeFactory.hxx>
 #include <simgear/math/SGMath.hxx>
@@ -43,10 +50,14 @@ using namespace osg;
 
 using namespace effect;
 
+TexEnvCombine* buildTexEnvCombine(Effect* effect,
+                                  const SGPropertyNode* envProp);
+TexGen* buildTexGen(Effect* Effect, const SGPropertyNode* tgenProp);
+
 // Hack to force inclusion of TextureBuilder.cxx in library
 osg::Texture* TextureBuilder::buildFromType(Effect* effect, const string& type,
                                             const SGPropertyNode*props,
-                                            const osgDB::ReaderWriter::Options*
+                                            const SGReaderWriterXMLOptions*
                                             options)
 {
     return EffectBuilder<Texture>::buildFromType(effect, type, props, options);
@@ -56,6 +67,92 @@ typedef boost::tuple<string, Texture::FilterMode, Texture::FilterMode,
                      Texture::WrapMode, Texture::WrapMode, Texture::WrapMode,
                      string> TexTuple;
 
+EffectNameValue<TexEnv::Mode> texEnvModesInit[] =
+{
+    {"add", TexEnv::ADD},
+    {"blend", TexEnv::BLEND},
+    {"decal", TexEnv::DECAL},
+    {"modulate", TexEnv::MODULATE},
+    {"replace", TexEnv::REPLACE}
+};
+EffectPropertyMap<TexEnv::Mode> texEnvModes(texEnvModesInit);
+
+TexEnv* buildTexEnv(Effect* effect, const SGPropertyNode* prop)
+{
+    const SGPropertyNode* modeProp = getEffectPropertyChild(effect, prop,
+                                                            "mode");
+    const SGPropertyNode* colorProp = getEffectPropertyChild(effect, prop,
+                                                             "color");
+    if (!modeProp)
+        return 0;
+    TexEnv::Mode mode = TexEnv::MODULATE;
+    findAttr(texEnvModes, modeProp, mode);
+    if (mode == TexEnv::MODULATE) {
+        return StateAttributeFactory::instance()->getStandardTexEnv();
+    }
+    TexEnv* env = new TexEnv(mode);
+    if (colorProp)
+        env->setColor(toOsg(colorProp->getValue<SGVec4d>()));
+    return env;
+ }
+
+
+void TextureUnitBuilder::buildAttribute(Effect* effect, Pass* pass,
+                                        const SGPropertyNode* prop,
+                                        const SGReaderWriterXMLOptions* options)
+{
+    if (!isAttributeActive(effect, prop))
+        return;
+    // Decode the texture unit
+    int unit = 0;
+    const SGPropertyNode* pUnit = prop->getChild("unit");
+    if (pUnit) {
+        unit = pUnit->getValue<int>();
+    } else {
+        const SGPropertyNode* pName = prop->getChild("name");
+        if (pName)
+            try {
+                unit = boost::lexical_cast<int>(pName->getStringValue());
+            } catch (boost::bad_lexical_cast& lex) {
+                SG_LOG(SG_INPUT, SG_ALERT, "can't decode name as texture unit "
+                       << lex.what());
+            }
+    }
+    const SGPropertyNode* pType = getEffectPropertyChild(effect, prop, "type");
+    string type;
+    if (!pType)
+        type = "2d";
+    else
+        type = pType->getStringValue();
+    Texture* texture = 0;
+    try {
+        texture = TextureBuilder::buildFromType(effect, type, prop,
+                                                options);
+    }
+    catch (BuilderException& e) {
+        SG_LOG(SG_INPUT, SG_ALERT, "No image file for texture, using white ");
+        texture = StateAttributeFactory::instance()->getWhiteTexture();
+    }
+    pass->setTextureAttributeAndModes(unit, texture);
+    const SGPropertyNode* envProp = prop->getChild("environment");
+    if (envProp) {
+        TexEnv* env = buildTexEnv(effect, envProp);
+        if (env)
+            pass->setTextureAttributeAndModes(unit, env);
+    }
+    const SGPropertyNode* combineProp = prop->getChild("texenv-combine");
+    TexEnvCombine* combiner = 0;
+    if (combineProp && ((combiner = buildTexEnvCombine(effect, combineProp))))
+        pass->setTextureAttributeAndModes(unit, combiner);
+    const SGPropertyNode* tgenProp = prop->getChild("texgen");
+    TexGen* tgen = 0;
+    if (tgenProp && (tgen = buildTexGen(effect, tgenProp)))
+        pass->setTextureAttributeAndModes(unit, tgen);
+}
+
+// InstallAttributeBuilder call is in Effect.cxx to force this file to
+// be linked in.
+
 namespace
 {
 EffectNameValue<Texture::FilterMode> filterModesInit[] =
@@ -81,28 +178,31 @@ EffectPropertyMap<Texture::WrapMode> wrapModes(wrapModesInit);
 
 
 TexTuple makeTexTuple(Effect* effect, const SGPropertyNode* props,
-                      const osgDB::ReaderWriter::Options* options,
+                      const SGReaderWriterXMLOptions* options,
                       const string& texType)
 {
     Texture::FilterMode minFilter = Texture::LINEAR_MIPMAP_LINEAR;
-    findAttr(filterModes, getEffectPropertyChild(effect, props, "filter"),
-             minFilter);
+    const SGPropertyNode* ep = 0;
+    if ((ep = getEffectPropertyChild(effect, props, "filter")))
+        findAttr(filterModes, ep, minFilter);
     Texture::FilterMode magFilter = Texture::LINEAR;
-    findAttr(filterModes, getEffectPropertyChild(effect, props,
-                                                 "mag-filter"),
-             magFilter);
+    if ((ep = getEffectPropertyChild(effect, props, "mag-filter")))
+        findAttr(filterModes, ep, magFilter);
     const SGPropertyNode* pWrapS
         = getEffectPropertyChild(effect, props, "wrap-s");
     Texture::WrapMode sWrap = Texture::CLAMP;
-    findAttr(wrapModes, pWrapS, sWrap);
+    if (pWrapS)
+        findAttr(wrapModes, pWrapS, sWrap);
     const SGPropertyNode* pWrapT
         = getEffectPropertyChild(effect, props, "wrap-t");
     Texture::WrapMode tWrap = Texture::CLAMP;
-    findAttr(wrapModes, pWrapT, tWrap);
+    if (pWrapT)
+        findAttr(wrapModes, pWrapT, tWrap);
     const SGPropertyNode* pWrapR
         = getEffectPropertyChild(effect, props, "wrap-r");
     Texture::WrapMode rWrap = Texture::CLAMP;
-    findAttr(wrapModes, pWrapR, rWrap);
+    if (pWrapR)
+        findAttr(wrapModes, pWrapR, rWrap);
     const SGPropertyNode* pImage
         = getEffectPropertyChild(effect, props, "image");
     string imageName;
@@ -114,7 +214,7 @@ TexTuple makeTexTuple(Effect* effect, const SGPropertyNode* props,
 }
 
 void setAttrs(const TexTuple& attrs, Texture* tex,
-              const osgDB::ReaderWriter::Options* options)
+              const SGReaderWriterXMLOptions* options)
 {
     const string& imageName = attrs.get<0>();
     if (imageName.empty()) {
@@ -154,7 +254,7 @@ class TexBuilder : public TextureBuilder
 public:
     TexBuilder(const string& texType) : _type(texType) {}
     Texture* build(Effect* effect, const SGPropertyNode*,
-                   const osgDB::ReaderWriter::Options* options);
+                   const SGReaderWriterXMLOptions* options);
 protected:
     typedef map<TexTuple, ref_ptr<T> > TexMap;
     TexMap texMap;
@@ -163,7 +263,7 @@ protected:
 
 template<typename T>
 Texture* TexBuilder<T>::build(Effect* effect, const SGPropertyNode* props,
-                              const osgDB::ReaderWriter::Options* options)
+                              const SGReaderWriterXMLOptions* options)
 {
     TexTuple attrs = makeTexTuple(effect, props, options, _type);
     typename TexMap::iterator itr = texMap.find(attrs);
@@ -187,11 +287,11 @@ class WhiteTextureBuilder : public TextureBuilder
 {
 public:
     Texture* build(Effect* effect, const SGPropertyNode*,
-                   const osgDB::ReaderWriter::Options* options);
+                   const SGReaderWriterXMLOptions* options);
 };
 
 Texture* WhiteTextureBuilder::build(Effect* effect, const SGPropertyNode*,
-                                    const osgDB::ReaderWriter::Options* options)
+                                    const SGReaderWriterXMLOptions* options)
 {
     return StateAttributeFactory::instance()->getWhiteTexture();
 }
@@ -201,6 +301,25 @@ namespace
 TextureBuilder::Registrar installWhite("white", new WhiteTextureBuilder);
 }
 
+class TransparentTextureBuilder : public TextureBuilder
+{
+public:
+    Texture* build(Effect* effect, const SGPropertyNode*,
+                   const SGReaderWriterXMLOptions* options);
+};
+
+Texture* TransparentTextureBuilder::build(Effect* effect, const SGPropertyNode*,
+                                    const SGReaderWriterXMLOptions* options)
+{
+    return StateAttributeFactory::instance()->getTransparentTexture();
+}
+
+namespace
+{
+TextureBuilder::Registrar installTransparent("transparent",
+                                             new TransparentTextureBuilder);
+}
+
 osg::Image* make3DNoiseImage(int texSize)
 {
     osg::Image* image = new osg::Image;
@@ -250,14 +369,14 @@ class NoiseBuilder : public TextureBuilder
 {
 public:
     Texture* build(Effect* effect, const SGPropertyNode*,
-                   const osgDB::ReaderWriter::Options* options);
+                   const SGReaderWriterXMLOptions* options);
 protected:
     typedef map<int, ref_ptr<Texture3D> > NoiseMap;
     NoiseMap _noises;
 };
 
 Texture* NoiseBuilder::build(Effect* effect, const SGPropertyNode* props,
-                             const osgDB::ReaderWriter::Options* options)
+                             const SGReaderWriterXMLOptions* options)
 {
     int texSize = 64;
     const SGPropertyNode* sizeProp = getEffectPropertyChild(effect, props,
@@ -283,22 +402,224 @@ namespace
 TextureBuilder::Registrar installNoise("noise", new NoiseBuilder);
 }
 
+EffectNameValue<TexEnvCombine::CombineParam> combineParamInit[] =
+{
+    {"replace", TexEnvCombine::REPLACE},
+    {"modulate", TexEnvCombine::MODULATE},
+    {"add", TexEnvCombine::ADD},
+    {"add-signed", TexEnvCombine::ADD_SIGNED},
+    {"interpolate", TexEnvCombine::INTERPOLATE},
+    {"subtract", TexEnvCombine::SUBTRACT},
+    {"dot3-rgb", TexEnvCombine::DOT3_RGB},
+    {"dot3-rgba", TexEnvCombine::DOT3_RGBA}
+};
+
+EffectPropertyMap<TexEnvCombine::CombineParam> combineParams(combineParamInit);
+
+EffectNameValue<TexEnvCombine::SourceParam> sourceParamInit[] =
+{
+    {"constant", TexEnvCombine::CONSTANT},
+    {"primary_color", TexEnvCombine::PRIMARY_COLOR},
+    {"previous", TexEnvCombine::PREVIOUS},
+    {"texture", TexEnvCombine::TEXTURE},
+    {"texture0", TexEnvCombine::TEXTURE0},
+    {"texture1", TexEnvCombine::TEXTURE1},
+    {"texture2", TexEnvCombine::TEXTURE2},
+    {"texture3", TexEnvCombine::TEXTURE3},
+    {"texture4", TexEnvCombine::TEXTURE4},
+    {"texture5", TexEnvCombine::TEXTURE5},
+    {"texture6", TexEnvCombine::TEXTURE6},
+    {"texture7", TexEnvCombine::TEXTURE7}
+};
+
+EffectPropertyMap<TexEnvCombine::SourceParam> sourceParams(sourceParamInit);
+
+EffectNameValue<TexEnvCombine::OperandParam> opParamInit[] =
+{
+    {"src-color", TexEnvCombine::SRC_COLOR},
+    {"one-minus-src-color", TexEnvCombine::ONE_MINUS_SRC_COLOR},
+    {"src-alpha", TexEnvCombine::SRC_ALPHA},
+    {"one-minus-src-alpha", TexEnvCombine::ONE_MINUS_SRC_ALPHA}
+};
+
+EffectPropertyMap<TexEnvCombine::OperandParam> operandParams(opParamInit);
+
+TexEnvCombine* buildTexEnvCombine(Effect* effect, const SGPropertyNode* envProp)
+{
+    if (!isAttributeActive(effect, envProp))
+        return 0;
+    TexEnvCombine* result = new TexEnvCombine;
+    const SGPropertyNode* p = 0;
+    if ((p = getEffectPropertyChild(effect, envProp, "combine-rgb"))) {
+        TexEnvCombine::CombineParam crgb = TexEnvCombine::MODULATE;
+        findAttr(combineParams, p, crgb);
+        result->setCombine_RGB(crgb);
+    }
+    if ((p = getEffectPropertyChild(effect, envProp, "combine-alpha"))) {
+        TexEnvCombine::CombineParam calpha = TexEnvCombine::MODULATE;
+        findAttr(combineParams, p, calpha);
+        result->setCombine_Alpha(calpha);
+    }
+    if ((p = getEffectPropertyChild(effect, envProp, "source0-rgb"))) {
+        TexEnvCombine::SourceParam source = TexEnvCombine::TEXTURE;
+        findAttr(sourceParams, p, source);
+        result->setSource0_RGB(source);
+    }
+    if ((p = getEffectPropertyChild(effect, envProp, "source1-rgb"))) {
+        TexEnvCombine::SourceParam source = TexEnvCombine::PREVIOUS;
+        findAttr(sourceParams, p, source);
+        result->setSource1_RGB(source);
+    }
+    if ((p = getEffectPropertyChild(effect, envProp, "source2-rgb"))) {
+        TexEnvCombine::SourceParam source = TexEnvCombine::CONSTANT;
+        findAttr(sourceParams, p, source);
+        result->setSource2_RGB(source);
+    }
+    if ((p = getEffectPropertyChild(effect, envProp, "source0-alpha"))) {
+        TexEnvCombine::SourceParam source = TexEnvCombine::TEXTURE;
+        findAttr(sourceParams, p, source);
+        result->setSource0_Alpha(source);
+    }
+    if ((p = getEffectPropertyChild(effect, envProp, "source1-alpha"))) {
+        TexEnvCombine::SourceParam source = TexEnvCombine::PREVIOUS;
+        findAttr(sourceParams, p, source);
+        result->setSource1_Alpha(source);
+    }
+    if ((p = getEffectPropertyChild(effect, envProp, "source2-alpha"))) {
+        TexEnvCombine::SourceParam source = TexEnvCombine::CONSTANT;
+        findAttr(sourceParams, p, source);
+        result->setSource2_Alpha(source);
+    }
+    if ((p = getEffectPropertyChild(effect, envProp, "operand0-rgb"))) {
+        TexEnvCombine::OperandParam op = TexEnvCombine::SRC_COLOR;
+        findAttr(operandParams, p, op);
+        result->setOperand0_RGB(op);
+    }
+    if ((p = getEffectPropertyChild(effect, envProp, "operand1-rgb"))) {
+        TexEnvCombine::OperandParam op = TexEnvCombine::SRC_COLOR;
+        findAttr(operandParams, p, op);
+        result->setOperand1_RGB(op);
+    }
+    if ((p = getEffectPropertyChild(effect, envProp, "operand2-rgb"))) {
+        TexEnvCombine::OperandParam op = TexEnvCombine::SRC_ALPHA;
+        findAttr(operandParams, p, op);
+        result->setOperand2_RGB(op);
+    }
+    if ((p = getEffectPropertyChild(effect, envProp, "operand0-alpha"))) {
+        TexEnvCombine::OperandParam op = TexEnvCombine::SRC_ALPHA;
+        findAttr(operandParams, p, op);
+        result->setOperand0_Alpha(op);
+    }
+    if ((p = getEffectPropertyChild(effect, envProp, "operand1-alpha"))) {
+        TexEnvCombine::OperandParam op = TexEnvCombine::SRC_ALPHA;
+        findAttr(operandParams, p, op);
+        result->setOperand1_Alpha(op);
+    }
+    if ((p = getEffectPropertyChild(effect, envProp, "operand2-alpha"))) {
+        TexEnvCombine::OperandParam op = TexEnvCombine::SRC_ALPHA;
+        findAttr(operandParams, p, op);
+        result->setOperand2_Alpha(op);
+    }
+    if ((p = getEffectPropertyChild(effect, envProp, "scale-rgb"))) {
+        result->setScale_RGB(p->getValue<float>());
+    }
+    if ((p = getEffectPropertyChild(effect, envProp, "scale-alpha"))) {
+        result->setScale_Alpha(p->getValue<float>());
+    }
+#if 0
+    if ((p = getEffectPropertyChild(effect, envProp, "constant-color"))) {
+        SGVec4d color = p->getValue<SGVec4d>();
+        result->setConstantColor(toOsg(color));
+    } else if ((p = getEffectPropertyChild(effect, envProp,
+                                           "light-direction"))) {
+        SGVec3d direction = p->getValue<SGVec3d>();
+        result->setConstantColorAsLightDirection(toOsg(direction));
+    }
+#endif
+    const SGPropertyNode* colorNode = envProp->getChild("constant-color");
+    if (colorNode)
+        initFromParameters(effect, colorNode, result,
+                           &TexEnvCombine::setConstantColor, colorFields);
+    return result;
+}
+
+EffectNameValue<TexGen::Mode> tgenModeInit[] =
+{
+    { "object-linear", TexGen::OBJECT_LINEAR},
+    { "eye-linear", TexGen::EYE_LINEAR},
+    { "sphere-map", TexGen::SPHERE_MAP},
+    { "normal-map", TexGen::NORMAL_MAP},
+    { "reflection-map", TexGen::REFLECTION_MAP}
+};
+
+EffectPropertyMap<TexGen::Mode> tgenModes(tgenModeInit);
+
+EffectNameValue<TexGen::Coord> tgenCoordInit[] =
+{
+    {"s", TexGen::S},
+    {"t", TexGen::T},
+    {"r", TexGen::R},
+    {"q", TexGen::Q}
+};
+
+EffectPropertyMap<TexGen::Coord> tgenCoords(tgenCoordInit);
+
+TexGen* buildTexGen(Effect* effect, const SGPropertyNode* tgenProp)
+{
+    if (!isAttributeActive(effect, tgenProp))
+        return 0;
+    TexGen* result = new TexGen;
+    const SGPropertyNode* p = 0;
+    TexGen::Mode mode = TexGen::OBJECT_LINEAR;
+    findAttr(tgenModes, getEffectPropertyChild(effect, tgenProp, "mode"), mode);
+    result->setMode(mode);
+    const SGPropertyNode* planesNode = tgenProp->getChild("planes");
+    if (planesNode) {
+        for (int i = 0; i < planesNode->nChildren(); ++i) {
+            const SGPropertyNode* planeNode = planesNode->getChild(i);
+            TexGen::Coord coord;
+            findAttr(tgenCoords, planeNode->getName(), coord);
+            const SGPropertyNode* realNode
+                = getEffectPropertyNode(effect, planeNode);
+            SGVec4d plane = realNode->getValue<SGVec4d>();
+            result->setPlane(coord, toOsg(plane));
+        }
+    }
+    return result;
+}
+
 bool makeTextureParameters(SGPropertyNode* paramRoot, const StateSet* ss)
 {
+    SGPropertyNode* texUnit = makeChild(paramRoot, "texture");
     const Texture* tex = getStateAttribute<Texture>(0, ss);
     const Texture2D* texture = dynamic_cast<const Texture2D*>(tex);
-    if (!tex)
+    makeChild(texUnit, "unit")->setValue(0);
+    if (!tex) {
+        // The default shader-based technique ignores active
+        makeChild(texUnit, "active")->setValue(false);
         return false;
+    }
     const Image* image = texture->getImage();
     string imageName;
-    if (image)
+    if (image) {
         imageName = image->getFileName();
+    } else {
+        makeChild(texUnit, "active")->setValue(false);
+        makeChild(texUnit, "type")->setValue("white");
+        return false;
+    }
+    makeChild(texUnit, "active")->setValue(true);
+    makeChild(texUnit, "type")->setValue("2d");
+    string filter = findName(filterModes,
+                             texture->getFilter(Texture::MIN_FILTER));
+    string magFilter = findName(filterModes,
+                             texture->getFilter(Texture::MAG_FILTER));
     string wrapS = findName(wrapModes, texture->getWrap(Texture::WRAP_S));
     string wrapT = findName(wrapModes, texture->getWrap(Texture::WRAP_T));
     string wrapR = findName(wrapModes, texture->getWrap(Texture::WRAP_R));
-    SGPropertyNode* texUnit = makeChild(paramRoot, "texture-unit");
-    makeChild(texUnit, "unit")->setValue(0);
     makeChild(texUnit, "image")->setStringValue(imageName);
+    makeChild(texUnit, "filter")->setStringValue(filter);
+    makeChild(texUnit, "mag-filter")->setStringValue(magFilter);
     makeChild(texUnit, "wrap-s")->setStringValue(wrapS);
     makeChild(texUnit, "wrap-t")->setStringValue(wrapT);
     makeChild(texUnit, "wrap-r")->setStringValue(wrapR);