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Deprecated Text:BackdropImplementation, removing the backend as it no longer required when using shaders for backdrop effects

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This commit is contained in:
Robert Osfield 2017-10-13 11:42:25 +01:00
parent 28561b2b77
commit 8b12d2d71a
10 changed files with 17 additions and 121 deletions
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1
examples/osgSSBO/osgSSBO.cpp
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@ -473,7 +473,6 @@ void ComputeNode::addDataMonitor(osg::Vec3 placement, osg::Vec3 relativePlacemen
pat->setName(labelCaption);
text->setText(pat->getName());
text->setBackdropType(osgText::Text::OUTLINE);
text->setBackdropImplementation(osgText::Text::POLYGON_OFFSET);
text->setBackdropOffset(0.05f);
text->setBackdropColor(osg::Vec4(0.0f, 0.0f, 0.0f, 1.0f));

5
examples/osgfont/osgfont.cpp
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@ -161,11 +161,6 @@ struct TextSettings
text.setBackdropOffset(backdropOffset.x(), backdropOffset.y());
text.setBackdropColor(backdropColor);
if (glyphTextureFeatures==osgText::GlyphTexture::ALL_FEATURES)
{
text.setBackdropImplementation(osgText::Text::USE_SHADERS);
}
text.setFont(font.get());
}

2
examples/osglogo/osglogo.cpp
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@ -154,7 +154,6 @@ osg:: Node* createTextBelow(const osg::BoundingBox& bb, const std::string& label
if (s_useSDF)
{
text->getFont()->setGyphTextureFeatures(osgText::GlyphTexture::ALL_FEATURES);
text->setBackdropImplementation(osgText::Text::USE_SHADERS);
}
text->setAlignment(osgText::Text::CENTER_CENTER);
@ -188,7 +187,6 @@ osg:: Node* createTextLeft(const osg::BoundingBox& bb, const std::string& label,
if (s_useSDF)
{
text->getFont()->setGyphTextureFeatures(osgText::GlyphTexture::ALL_FEATURES);
text->setBackdropImplementation(osgText::Text::USE_SHADERS);
}
text->setAlignment(osgText::Text::RIGHT_CENTER);

1
examples/osgviewerCocoa/ViewerCocoa.mm
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@ -432,7 +432,6 @@ static void Internal_SetAlpha(NSBitmapImageRep *imageRep, unsigned char alpha_va
default_text->setAlignment(osgText::Text::CENTER_CENTER);
default_text->setBackdropType(osgText::Text::OUTLINE);
// default_text->setBackdropImplementation(osgText::Text::POLYGON_OFFSET);
default_text->setColor(osg::Vec4(1.0, 1.0, 0.0, 1.0));
default_text->setBackdropColor(osg::Vec4(0.0, 0.0, 0.0, 1.0));
default_text->setAxisAlignment(osgText::Text::XZ_PLANE);

6
examples/osgwidgetlabel/osgwidgetlabel.cpp
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@ -30,12 +30,6 @@ osgWidget::Label* createLabel(const std::string& l, unsigned int size=13) {
label->setFontColor(1.0f, 1.0f, 1.0f, 1.0f);
label->setLabel(l);
/*
text->setBackdropType(osgText::Text::DROP_SHADOW_BOTTOM_RIGHT);
text->setBackdropImplementation(osgText::Text::NO_DEPTH_BUFFER);
text->setBackdropOffset(0.2f);
*/
return label;
}

54
include/osgText/Text
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@ -60,33 +60,6 @@ public:
NONE
};
enum BackdropImplementation
{
/* No longer supported, naps to DELAYED_DEPTH_WRITES.*/
POLYGON_OFFSET = 0,
/* No longer supported, naps to DELAYED_DEPTH_WRITES.*/
NO_DEPTH_BUFFER,
/* No longer supported, naps to DELAYED_DEPTH_WRITES.*/
DEPTH_RANGE,
/* No longer supported, naps to DELAYED_DEPTH_WRITES.*/
STENCIL_BUFFER,
/* DELAYED_DEPTH_WRITES
* This mode renders all text with depth writes turned off, then
* again with depth writes on, but with the color buffer disabled.
* This should render text accurately for all graphics cards. The
* only downside is the additional pass to render to the depth
* buffer. But if you don't need the depth buffer updated for
* your, this extra pass can be disabled by calling
* enableDepthWrites(false).*/
DELAYED_DEPTH_WRITES,
USE_SHADERS
};
/**
* BackdropType gives you a background shadow text behind your regular
* text. This helps give text extra contrast which can be useful when
@ -141,18 +114,6 @@ public:
const osg::Vec4& getBackdropColor() const { return _backdropColor; }
/**
* This specifies the underlying backdrop rendering implementation.
* Unfortunately, at this time, there is no "perfect" rendering solution
* so this function is provided to let you 'pick your poison'. Each
* implementation has trade-offs. See BackdropImplementation enum
* docs for details.*/
void setBackdropImplementation(BackdropImplementation implementation);
BackdropImplementation getBackdropImplementation() const { return _backdropImplementation; }
enum ColorGradientMode
{
SOLID = 0, // a.k.a. ColorGradients off
@ -224,6 +185,20 @@ public:
public:
/** deprecated, value ignored.*/
enum BackdropImplementation
{
POLYGON_OFFSET = 0,
NO_DEPTH_BUFFER,
DEPTH_RANGE,
STENCIL_BUFFER,
DELAYED_DEPTH_WRITES
};
/** deprecated, value ignored.*/
void setBackdropImplementation(BackdropImplementation) {}
/** deprecated, value should be ignored.*/
BackdropImplementation getBackdropImplementation() const { return DELAYED_DEPTH_WRITES; }
// internal structures, variable and methods used for rendering of characters.
struct OSGTEXT_EXPORT GlyphQuads
@ -310,7 +285,6 @@ protected:
bool _enableDepthWrites;
BackdropType _backdropType;
BackdropImplementation _backdropImplementation;
float _backdropHorizontalOffset;
float _backdropVerticalOffset;

4
src/osgPlugins/ive/Text.cpp
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@ -90,7 +90,7 @@ void Text::write(DataOutputStream* out){
out->writeFloat(getBackdropVerticalOffset());
out->writeVec4(getBackdropColor());
out->writeUInt(getBackdropImplementation());
out->writeUInt(4); // old DELAYED_DEPTH_WRITES
out->writeUInt(getColorGradientMode());
out->writeVec4(getColorGradientTopLeft());
@ -213,7 +213,7 @@ void Text::read(DataInputStream* in){
setBackdropOffset(horizontalOffset,verticalOffset);
setBackdropColor(in->readVec4());
setBackdropImplementation((osgText::Text::BackdropImplementation) in->readUInt());
in->readUInt(); // read old BackdropImplementation value, no longer used
setColorGradientMode((osgText::Text::ColorGradientMode) in->readUInt());
osg::Vec4 colorGradientTopLeft,colorGradientBottomLeft,colorGradientBottomRight,colorGradientTopRight;

34
src/osgText/Text.cpp
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@ -31,11 +31,6 @@ using namespace osgText;
Text::Text():
_enableDepthWrites(true),
_backdropType(NONE),
#if 1
_backdropImplementation(DELAYED_DEPTH_WRITES),
#else
_backdropImplementation(USE_SHADERS),
#endif
_backdropHorizontalOffset(0.07f),
_backdropVerticalOffset(0.07f),
_backdropColor(0.0f, 0.0f, 0.0f, 1.0f),
@ -47,17 +42,6 @@ Text::Text():
{
_supportsVertexBufferObjects = true;
char *ptr;
if ((ptr = getenv("OSG_SDF_TEXT")) != 0)
{
_backdropImplementation = USE_SHADERS;
}
else if ((ptr = getenv("OSG_GREYSCALE_TEXT")) != 0)
{
_backdropImplementation = DELAYED_DEPTH_WRITES;
}
assignStateSet();
}
@ -65,7 +49,6 @@ Text::Text(const Text& text,const osg::CopyOp& copyop):
osgText::TextBase(text,copyop),
_enableDepthWrites(text._enableDepthWrites),
_backdropType(text._backdropType),
_backdropImplementation(text._backdropImplementation),
_backdropHorizontalOffset(text._backdropHorizontalOffset),
_backdropVerticalOffset(text._backdropVerticalOffset),
_backdropColor(text._backdropColor),
@ -93,7 +76,7 @@ osg::StateSet* Text::createStateSet()
std::stringstream ss;
osg::StateSet::DefineList defineList;
if (_backdropType!=NONE && _backdropImplementation==USE_SHADERS)
if (_backdropType!=NONE)
{
ss.str("");
ss << "vec4("<<_backdropColor.r()<<", "<<_backdropColor.g()<<", "<<_backdropColor.b()<<", "<<_backdropColor.a()<<")";
@ -128,8 +111,6 @@ osg::StateSet* Text::createStateSet()
defineList["SHADOW"] = osg::StateSet::DefinePair(ss.str(), osg::StateAttribute::ON);
}
}
if (activeFont->getGlyphTextureFeatures()!=GlyphTexture::GREYSCALE)
@ -147,7 +128,6 @@ osg::StateSet* Text::createStateSet()
}
#if 0
OSG_NOTICE<<"Text::createStateSet() _backdropType="<<_backdropType<<", _backdropImplementation="<<_backdropImplementation<<std::endl;
OSG_NOTICE<<"Text::createStateSet() defines:"<<defineList.size()<<std::endl;
for(osg::StateSet::DefineList::iterator itr = defineList.begin();
itr != defineList.end();
@ -1294,18 +1274,6 @@ void Text::setBackdropType(BackdropType type)
computeGlyphRepresentation();
}
void Text::setBackdropImplementation(BackdropImplementation implementation)
{
if (_backdropImplementation==implementation) return;
_backdropImplementation = implementation;
assignStateSet();
computeGlyphRepresentation();
}
void Text::setBackdropOffset(float offset)
{
_backdropHorizontalOffset = offset;

1
src/osgWidget/Label.cpp
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@ -134,7 +134,6 @@ void Label::setFontColor(const Color& c) {
void Label::setShadow(point_type offset) {
_text->setBackdropType(osgText::Text::DROP_SHADOW_BOTTOM_RIGHT);
_text->setBackdropImplementation(osgText::Text::NO_DEPTH_BUFFER);
_text->setBackdropOffset(offset);
_calculateSize(getTextSize());

30
src/osgWrappers/deprecated-dotosg/osgText/IO_Text.cpp
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@ -57,27 +57,6 @@ std::string convertBackdropTypeEnumToString(osgText::Text::BackdropType backdrop
}
}
osgText::Text::BackdropImplementation convertBackdropImplementationStringToEnum(std::string & str)
{
if (str=="POLYGON_OFFSET") return osgText::Text::POLYGON_OFFSET;
else if (str=="NO_DEPTH_BUFFER") return osgText::Text::NO_DEPTH_BUFFER;
else if (str=="DEPTH_RANGE") return osgText::Text::DEPTH_RANGE;
else if (str=="STENCIL_BUFFER") return osgText::Text::STENCIL_BUFFER;
else return static_cast<osgText::Text::BackdropImplementation>(-1);
}
std::string convertBackdropImplementationEnumToString(osgText::Text::BackdropImplementation backdropImplementation)
{
switch (backdropImplementation)
{
case osgText::Text::POLYGON_OFFSET: return "POLYGON_OFFSET";
case osgText::Text::NO_DEPTH_BUFFER: return "NO_DEPTH_BUFFER";
case osgText::Text::DEPTH_RANGE: return "DEPTH_RANGE";
case osgText::Text::STENCIL_BUFFER: return "STENCIL_BUFFER";
default : return "";
}
}
osgText::Text::ColorGradientMode convertColorGradientModeStringToEnum(std::string & str)
{
if (str=="SOLID") return osgText::Text::SOLID;
@ -155,12 +134,6 @@ bool Text_readLocalData(osg::Object &obj, osgDB::Input &fr)
// backdropImplementation
if (fr[0].matchWord("backdropImplementation"))
{
std::string str = fr[1].getStr();
osgText::Text::BackdropImplementation backdropImplementation = convertBackdropImplementationStringToEnum(str);
if (backdropImplementation != static_cast<osgText::Text::BackdropImplementation>(-1))
text.setBackdropImplementation(backdropImplementation);
fr += 2;
itAdvanced = true;
}
@ -254,9 +227,6 @@ bool Text_writeLocalData(const osg::Object &obj, osgDB::Output &fw)
osg::Vec4 c = text.getBackdropColor();
fw.indent() << "backdropColor " << c.x() << " " << c.y() << " " << c.z() << " " << c.w() << std::endl;
// backdropImplementation
fw.indent() << "backdropImplementation " << convertBackdropImplementationEnumToString(text.getBackdropImplementation()) << std::endl;
// colorGradientMode
fw.indent() << "colorGradientMode " << convertColorGradientModeEnumToString(text.getColorGradientMode()) << std::endl;