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Updates osghud demo.

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Compile fixes for VisualStudio6.0 because its a hideous pile of junk and can't
compile its way out of a paper bag.
This commit is contained in:
Robert Osfield 2003-03-03 22:18:33 +00:00
parent fcbf1e200a
commit e433b42bc0
6 changed files with 141 additions and 146 deletions
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1
examples/osgtext/osgtext.cpp
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@ -25,7 +25,6 @@
#include <osgText/Text> #include <osgText/Text>
osg::Group* createHUDText() osg::Group* createHUDText()
{ {

46
include/osgText/Font
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@ -133,40 +133,40 @@ public:
Glyph(); Glyph();
virtual ~Glyph(); virtual ~Glyph();
unsigned int getGlyphCode() const { return _glyphCode; } unsigned int getGlyphCode() const;
void setFont(Font* font) { _font = font; } void setFont(Font* font);
Font* getFont() const { return _font; } Font* getFont() const;
void setHorizontalBearing(const osg::Vec2& bearing) { _horizontalBearing=bearing; } void setHorizontalBearing(const osg::Vec2& bearing);
const osg::Vec2& getHorizontalBearing() const { return _horizontalBearing; } const osg::Vec2& getHorizontalBearing() const;
void setHorizontalAdvance(float advance) { _horizontalAdvance=advance; } void setHorizontalAdvance(float advance);
float getHorizontalAdvance() const { return _horizontalAdvance; } float getHorizontalAdvance() const;
void setVerticalBearing(const osg::Vec2& bearing) { _verticalBearing=bearing; } void setVerticalBearing(const osg::Vec2& bearing);
const osg::Vec2& getVerticalBearing() const { return _verticalBearing; } const osg::Vec2& getVerticalBearing() const;
void setVerticalAdvance(float advance) { _verticalAdvance=advance; } void setVerticalAdvance(float advance);
float getVerticalAdvance() const { return _verticalAdvance; } float getVerticalAdvance() const;
void setTexture(GlyphTexture* texture) { _texture = texture; } void setTexture(GlyphTexture* texture);
GlyphTexture* getTexture() { return _texture; } GlyphTexture* getTexture();
const GlyphTexture* getTexture() const { return _texture; } const GlyphTexture* getTexture() const;
osg::StateSet* getStateSet() { return _texture?_texture->getStateSet():0; } osg::StateSet* getStateSet();
const osg::StateSet* getStateSet() const { return _texture?_texture->getStateSet():0; } const osg::StateSet* getStateSet() const;
void setTexturePosition(int posX,int posY) { _texturePosX = posX; _texturePosY = posY; } void setTexturePosition(int posX,int posY);
int getTexturePositionX() const { return _texturePosX; } int getTexturePositionX() const;
int getTexturePositionY() const { return _texturePosY; } int getTexturePositionY() const;
void setMinTexCoord(const osg::Vec2& coord) { _minTexCoord=coord; } void setMinTexCoord(const osg::Vec2& coord);
const osg::Vec2& getMinTexCoord() const { return _minTexCoord; } const osg::Vec2& getMinTexCoord() const;
void setMaxTexCoord(const osg::Vec2& coord) { _maxTexCoord=coord; } void setMaxTexCoord(const osg::Vec2& coord);
const osg::Vec2& getMaxTexCoord() const { return _maxTexCoord; } const osg::Vec2& getMaxTexCoord() const;
void subload() const; void subload() const;

109
src/Demos/osghud/osghud.cpp
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@ -55,46 +55,27 @@ void write_usage(std::ostream& out,const std::string& name)
out << std::endl; out << std::endl;
} }
osg::Node* createHUD()
///////////////////////////////////////////////////////////////////////////////
// globals
#define TEXT_POLYGON "Polygon Font - jygq"
#define TEXT_OUTLINE "Outline Font - jygq"
#define TEXT_TEXTURE "Texture Font - jygq"
#define TEXT_BITMAP "Bitmap Font - jygq"
#define TEXT_PIXMAP "Pixmap Font - jygq"
#define TEXT_COL_2D osg::Vec4(.9,.9,.9,1)
#define TEXT_COL_3D osg::Vec4(.99,.3,.2,1)
std::string timesFont("fonts/times.ttf");
std::string arialFont("fonts/arial.ttf");
int gFontSize=18;
int gFontSize1=24;
osgText::Text::AlignmentType gAlignment=osgText::Text::LEFT_BOTTOM;
void set2dScene(osg::Group* rootNode)
{ {
osg::Geode* geode = new osg::Geode(); osg::Geode* geode = new osg::Geode();
rootNode->addChild(geode);
osg::Vec3 position(150.0f,10.0f,0.0f); std::string timesFont("fonts/times.ttf");
osg::Vec3 delta(90.0f,120.0f,0.0f);
// turn lighting off for the text and disable depth test to ensure its always ontop.
osg::StateSet* stateset = geode->getOrCreateStateSet();
stateset->setMode(GL_LIGHTING,osg::StateAttribute::OFF);
stateset->setMode(GL_DEPTH_TEST,osg::StateAttribute::OFF);
osg::Vec3 position(150.0f,800.0f,0.0f);
osg::Vec3 delta(0.0f,-120.0f,0.0f);
{ {
osgText::Text* text = new osgText::Text; osgText::Text* text = new osgText::Text;
geode->addDrawable( text ); geode->addDrawable( text );
text->setFont(timesFont); text->setFont(timesFont);
text->setFontSize(gFontSize,gFontSize); text->setText("Head Up Displays are simple :-)");
text->setText("String 1");
text->setPosition(position); text->setPosition(position);
text->setDrawMode( osgText::Text::TEXT |
osgText::Text::BOUNDINGBOX |
osgText::Text::ALIGNMENT );
text->setAlignment(gAlignment);
position += delta; position += delta;
} }
@ -105,13 +86,8 @@ void set2dScene(osg::Group* rootNode)
geode->addDrawable( text ); geode->addDrawable( text );
text->setFont(timesFont); text->setFont(timesFont);
text->setFontSize(gFontSize,gFontSize); text->setText("All you need to do is create your text in a subgraph.");
text->setText("String 1");
text->setPosition(position); text->setPosition(position);
text->setDrawMode( osgText::Text::TEXT |
osgText::Text::BOUNDINGBOX |
osgText::Text::ALIGNMENT );
text->setAlignment(gAlignment);
position += delta; position += delta;
} }
@ -122,16 +98,46 @@ void set2dScene(osg::Group* rootNode)
geode->addDrawable( text ); geode->addDrawable( text );
text->setFont(timesFont); text->setFont(timesFont);
text->setFontSize(gFontSize,gFontSize); text->setText("Disable depth test in this subgraph to ensure its always ontop.");
text->setText("String 1");
text->setPosition(position); text->setPosition(position);
text->setDrawMode( osgText::Text::TEXT |
osgText::Text::BOUNDINGBOX |
osgText::Text::ALIGNMENT );
text->setAlignment(gAlignment);
position += delta; position += delta;
} }
{
osgText::Text* text = new osgText::Text;
geode->addDrawable( text );
text->setFont(timesFont);
text->setText("Then place a osg::Projection node above the subgraph\nto create an othrograph projection.");
text->setPosition(position);
position += delta;
}
{
osgText::Text* text = new osgText::Text;
geode->addDrawable( text );
text->setFont(timesFont);
text->setText("And add an osg::ModelViewMatrix set to ABSOLUTE to ensure\nit remains independent from any external model view matrices.");
text->setPosition(position);
position += delta;
}
// create the hud.
osg::MatrixTransform* modelview_abs = new osg::MatrixTransform;
modelview_abs->setReferenceFrame(osg::Transform::RELATIVE_TO_ABSOLUTE);
modelview_abs->setMatrix(osg::Matrix::identity());
modelview_abs->addChild(geode);
osg::Projection* projection = new osg::Projection;
projection->setMatrix(osg::Matrix::ortho2D(0,1280,0,1024));
projection->addChild(modelview_abs);
return projection;
} }
struct MyCallback : public osg::NodeCallback struct MyCallback : public osg::NodeCallback
@ -201,23 +207,8 @@ int main( int argc, char **argv )
rootnode = group; rootnode = group;
} }
// create the hud. // add the HUD subgraph.
osg::Projection* projection = new osg::Projection; group->addChild(createHUD());
projection->setMatrix(osg::Matrix::ortho2D(0,1024,0,768));
osg::MatrixTransform* modelview_abs = new osg::MatrixTransform;
modelview_abs->setReferenceFrame(osg::Transform::RELATIVE_TO_ABSOLUTE);
modelview_abs->setMatrix(osg::Matrix::identity());
set2dScene(modelview_abs);
projection->addChild(modelview_abs);
// projection->setAppCallback(new MyCallback("App callback"));
// projection->setCullCallback(new MyCallback("Cull callback"));
group->addChild(projection);
// add a viewport to the viewer and attach the scene graph. // add a viewport to the viewer and attach the scene graph.
viewer.addViewport( rootnode ); viewer.addViewport( rootnode );

45
src/Demos/osglogo/osglogo.cpp
View File

@ -21,8 +21,6 @@
#include <osgDB/ReadFile> #include <osgDB/ReadFile>
//#include "CreateShadowedScene.h"
static bool s_ProfessionalServices = false; static bool s_ProfessionalServices = false;
class MyBillboardTransform : public osg::PositionAttitudeTransform class MyBillboardTransform : public osg::PositionAttitudeTransform
@ -37,11 +35,6 @@ class MyBillboardTransform : public osg::PositionAttitudeTransform
bool computeLocalToWorldMatrix(osg::Matrix& matrix,osg::NodeVisitor* nv) const bool computeLocalToWorldMatrix(osg::Matrix& matrix,osg::NodeVisitor* nv) const
{ {
if (_referenceFrame==RELATIVE_TO_PARENTS)
{
osg::Quat billboardRotation; osg::Quat billboardRotation;
osgUtil::CullVisitor* cullvisitor = dynamic_cast<osgUtil::CullVisitor*>(nv); osgUtil::CullVisitor* cullvisitor = dynamic_cast<osgUtil::CullVisitor*>(nv);
if (cullvisitor) if (cullvisitor)
@ -62,36 +55,10 @@ class MyBillboardTransform : public osg::PositionAttitudeTransform
osg::Matrix::rotate(_attitude)* osg::Matrix::rotate(_attitude)*
osg::Matrix::rotate(billboardRotation)* osg::Matrix::rotate(billboardRotation)*
osg::Matrix::translate(_position)); osg::Matrix::translate(_position));
}
else // absolute
{
matrix = osg::Matrix::translate(-_pivotPoint)*
osg::Matrix::rotate(_attitude)*
osg::Matrix::translate(_position);
}
return true; return true;
} }
bool computeWorldToLocalMatrix(osg::Matrix& matrix,osg::NodeVisitor*) const
{
if (_referenceFrame==RELATIVE_TO_PARENTS)
{
osg::Quat billboardRotation;
matrix.postMult(osg::Matrix::translate(-_position)*
osg::Matrix::rotate(billboardRotation.inverse())*
osg::Matrix::rotate(_attitude.inverse())*
osg::Matrix::translate(_pivotPoint));
}
else // absolute
{
matrix = osg::Matrix::translate(-_position)*
osg::Matrix::rotate(_attitude.inverse())*
osg::Matrix::translate(_pivotPoint);
}
return true;
}
void setAxis(const osg::Vec3& axis) { _axis = axis; } void setAxis(const osg::Vec3& axis) { _axis = axis; }
@ -182,14 +149,7 @@ osg:: Node* createTextLeft(const osg::BoundingBox& bb)
osg::StateSet* stateset = geode->getOrCreateStateSet(); osg::StateSet* stateset = geode->getOrCreateStateSet();
// osg::BlendFunc *transp= new osg::BlendFunc();
// transp->setFunction(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
stateset->setMode(GL_LIGHTING,osg::StateAttribute::OFF); stateset->setMode(GL_LIGHTING,osg::StateAttribute::OFF);
// stateset->setAttributeAndModes(transp,osg::StateAttribute::ON);
// stateset->setTextureMode(0,GL_TEXTURE_2D,osg::StateAttribute::ON);
// stateset->setRenderingHint(osg::StateSet::TRANSPARENT_BIN);
//std::string font("fonts/times.ttf"); //std::string font("fonts/times.ttf");
@ -198,9 +158,10 @@ osg:: Node* createTextLeft(const osg::BoundingBox& bb)
osgText::Text* text = new osgText::Text; osgText::Text* text = new osgText::Text;
text->setFont(font); text->setFont(font);
text->setFontSize(64,64); text->setFontSize(120,120);
text->setAlignment(osgText::Text::RIGHT_CENTER); text->setAlignment(osgText::Text::RIGHT_CENTER);
text->setAxisAlignment(osgText::Text::XZ_PLANE); text->setAxisAlignment(osgText::Text::XZ_PLANE);
text->setCharacterSize((bb.zMax()-bb.zMin())*0.8f);
text->setPosition(bb.center()-osg::Vec3((bb.xMax()-bb.xMin()),-(bb.yMax()-bb.yMin())*0.5f,(bb.zMax()-bb.zMin())*0.3f)); text->setPosition(bb.center()-osg::Vec3((bb.xMax()-bb.xMin()),-(bb.yMax()-bb.yMin())*0.5f,(bb.zMax()-bb.zMin())*0.3f));
//text->setColor(osg::Vec4(0.37f,0.48f,0.67f,1.0f)); // Neil's orignal OSG colour //text->setColor(osg::Vec4(0.37f,0.48f,0.67f,1.0f)); // Neil's orignal OSG colour
text->setColor(osg::Vec4(0.20f,0.45f,0.60f,1.0f)); // OGL logo colour text->setColor(osg::Vec4(0.20f,0.45f,0.60f,1.0f)); // OGL logo colour
@ -218,7 +179,7 @@ osg:: Node* createTextLeft(const osg::BoundingBox& bb)
subscript->setText("Professional Services"); subscript->setText("Professional Services");
subscript->setAlignment(osgText::Text::RIGHT_CENTER); subscript->setAlignment(osgText::Text::RIGHT_CENTER);
subscript->setAxisAlignment(osgText::Text::XZ_PLANE); subscript->setAxisAlignment(osgText::Text::XZ_PLANE);
subscript->setPosition(bb.center()-osg::Vec3((bb.xMax()-bb.xMin())*3.5f,-(bb.yMax()-bb.yMin())*0.3f,(bb.zMax()-bb.zMin())*0.7f)); subscript->setPosition(bb.center()-osg::Vec3((bb.xMax()-bb.xMin())*3.5f,-(bb.yMax()-bb.yMin())*0.5f,(bb.zMax()-bb.zMin())*0.6f));
subscript->setColor(osg::Vec4(0.0f,0.0f,0.0f,1.0f)); // black subscript->setColor(osg::Vec4(0.0f,0.0f,0.0f,1.0f)); // black
geode->addDrawable( subscript ); geode->addDrawable( subscript );

37
src/osgText/Font.cpp
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@ -291,9 +291,44 @@ void Font::GlyphTexture::apply(osg::State& state) const
} }
} }
// all the methods in Font::Glyph have been made non inline because VisualStudio6.0 is STUPID, STUPID, STUPID PILE OF JUNK.
Font::Glyph::Glyph() {} Font::Glyph::Glyph() {}
Font::Glyph::~Glyph() {} Font::Glyph::~Glyph() {}
unsigned int Font::Glyph::getGlyphCode() const { return _glyphCode; }
void Font::Glyph::setFont(Font* font) { _font = font; }
Font* Font::Glyph::getFont() const { return _font; }
void Font::Glyph::setHorizontalBearing(const osg::Vec2& bearing) { _horizontalBearing=bearing; }
const osg::Vec2& Font::Glyph::getHorizontalBearing() const { return _horizontalBearing; }
void Font::Glyph::setHorizontalAdvance(float advance) { _horizontalAdvance=advance; }
float Font::Glyph::getHorizontalAdvance() const { return _horizontalAdvance; }
void Font::Glyph::setVerticalBearing(const osg::Vec2& bearing) { _verticalBearing=bearing; }
const osg::Vec2& Font::Glyph::getVerticalBearing() const { return _verticalBearing; }
void Font::Glyph::setVerticalAdvance(float advance) { _verticalAdvance=advance; }
float Font::Glyph::getVerticalAdvance() const { return _verticalAdvance; }
void Font::Glyph::setTexture(GlyphTexture* texture) { _texture = texture; }
Font::GlyphTexture* Font::Glyph::getTexture() { return _texture; }
const Font::GlyphTexture* Font::Glyph::getTexture() const { return _texture; }
osg::StateSet* Font::Glyph::getStateSet() { return _texture?_texture->getStateSet():0; }
const osg::StateSet* Font::Glyph::getStateSet() const { return _texture?_texture->getStateSet():0; }
void Font::Glyph::setTexturePosition(int posX,int posY) { _texturePosX = posX; _texturePosY = posY; }
int Font::Glyph::getTexturePositionX() const { return _texturePosX; }
int Font::Glyph::getTexturePositionY() const { return _texturePosY; }
void Font::Glyph::setMinTexCoord(const osg::Vec2& coord) { _minTexCoord=coord; }
const osg::Vec2& Font::Glyph::getMinTexCoord() const { return _minTexCoord; }
void Font::Glyph::setMaxTexCoord(const osg::Vec2& coord) { _maxTexCoord=coord; }
const osg::Vec2& Font::Glyph::getMaxTexCoord() const { return _maxTexCoord; }
void Font::Glyph::subload() const void Font::Glyph::subload() const
{ {
GLenum errorNo = glGetError(); GLenum errorNo = glGetError();
@ -302,8 +337,6 @@ void Font::Glyph::subload() const
osg::notify(osg::WARN)<<"before: detected OpenGL error '"<<gluErrorString(errorNo)<<std::endl; osg::notify(osg::WARN)<<"before: detected OpenGL error '"<<gluErrorString(errorNo)<<std::endl;
} }
glPixelStorei(GL_UNPACK_ALIGNMENT,getPacking()); glPixelStorei(GL_UNPACK_ALIGNMENT,getPacking());
glTexSubImage2D(GL_TEXTURE_2D,0, glTexSubImage2D(GL_TEXTURE_2D,0,

13
src/osgText/Text.cpp
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@ -225,7 +225,8 @@ void Text::computeGlyphRepresentation()
_textureGlyphQuadMap.clear(); _textureGlyphQuadMap.clear();
osg::Vec2 cursor(0.0f,0.0f); osg::Vec2 startOfLine(0.0f,0.0f);
osg::Vec2 cursor(startOfLine);
osg::Vec2 local(0.0f,0.0f); osg::Vec2 local(0.0f,0.0f);
unsigned int previous_charcode = 0; unsigned int previous_charcode = 0;
@ -243,6 +244,16 @@ void Text::computeGlyphRepresentation()
{ {
unsigned int charcode = *itr; unsigned int charcode = *itr;
if (charcode=='\n')
{
if (horizontal) startOfLine.y() -= _fontHeight;
else startOfLine.x() += _fontWidth;
cursor = startOfLine;
previous_charcode = 0;
continue;
}
Font::Glyph* glyph = activefont->getGlyph(charcode); Font::Glyph* glyph = activefont->getGlyph(charcode);
if (glyph) if (glyph)
{ {