Added osg::ScissorIndexed that wraps up glScissorIndexed function

This commit is contained in:
Robert Osfield 2016-06-29 15:11:02 +01:00
parent 412e9fc3dd
commit 00b1173e70
5 changed files with 162 additions and 1 deletions

100
include/osg/ScissorIndexed Normal file
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@ -0,0 +1,100 @@
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2016 Robert Osfield
*
* This library is open source and may be redistributed and/or modified under
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
* (at your option) any later version. The full license is in LICENSE file
* included with this distribution, and on the openscenegraph.org website.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* OpenSceneGraph Public License for more details.
*/
#ifndef OSG_ScissorIndexed
#define OSG_ScissorIndexed 1
#include <osg/Depth>
namespace osg {
/** Encapsulates glScissorIndexed function : the index version of glDepth
*/
class OSG_EXPORT ScissorIndexed : public osg::StateAttribute
{
public :
ScissorIndexed();
ScissorIndexed(unsigned int index, float x, float y, float width, float height):
_index(index),
_x(x),
_y(y),
_width(width),
_height(height) {}
/** Copy constructor using CopyOp to manage deep vs shallow copy. */
ScissorIndexed(const ScissorIndexed& dp,const CopyOp& copyop=CopyOp::SHALLOW_COPY):
StateAttribute(dp,copyop),
_index(dp._index),
_x(dp._x),
_y(dp._y),
_width(dp._width),
_height(dp._height) {}
META_StateAttribute(osg, ScissorIndexed, SCISSORINDEXED);
/** Return -1 if *this < *rhs, 0 if *this==*rhs, 1 if *this>*rhs. */
virtual int compare(const StateAttribute& sa) const
{
// Check for equal types, then create the rhs variable
// used by the COMPARE_StateAttribute_Parameter macros below.
COMPARE_StateAttribute_Types(ScissorIndexed,sa)
COMPARE_StateAttribute_Parameter(_index);
COMPARE_StateAttribute_Parameter(_x)
COMPARE_StateAttribute_Parameter(_y)
COMPARE_StateAttribute_Parameter(_width)
COMPARE_StateAttribute_Parameter(_height)
return 0;
}
/** Return the buffer index as the member identifier.*/
virtual unsigned int getMember() const { return _index; }
/** Set the index of the ScissorIndexed. */
void setIndex(unsigned int index);
/** Get the index of the ScissorIndexed. */
unsigned int getIndex() const { return _index; }
inline void setX(float x) { _x=x; }
inline float getX() const { return _x; }
inline void setY(float y) { _y=y; }
inline float getY() const { return _y; }
inline void setWidth(float w) { _width=w; }
inline float getWidth() const { return _width; }
inline void setHeight(float height) { _height=height; }
inline float getHeight() const { return _height; }
virtual void apply(State& state) const;
protected:
virtual ~ScissorIndexed();
unsigned int _index;
float _x;
float _y;
float _width;
float _height;
};
}
#endif

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@ -204,7 +204,9 @@ class OSG_EXPORT StateAttribute : public Object
INDIRECTDRAWBUFFERBINDING, INDIRECTDRAWBUFFERBINDING,
VIEWPORTINDEXED,
DEPTHRANGEINDEXED, DEPTHRANGEINDEXED,
SCISSORINDEXED,
CAPABILITY = 100 CAPABILITY = 100
}; };

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@ -35,7 +35,7 @@ class OSG_EXPORT ViewportIndexed : public Viewport
Viewport(cm,copyop), Viewport(cm,copyop),
_index(cm._index) {} _index(cm._index) {}
META_StateAttribute(osg, ViewportIndexed, VIEWPORT); META_StateAttribute(osg, ViewportIndexed, VIEWPORTINDEXED);
/** Return -1 if *this < *rhs, 0 if *this==*rhs, 1 if *this>*rhs. */ /** Return -1 if *this < *rhs, 0 if *this==*rhs, 1 if *this>*rhs. */
virtual int compare(const StateAttribute& sa) const virtual int compare(const StateAttribute& sa) const

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@ -147,6 +147,7 @@ SET(TARGET_H
${HEADER_PATH}/RenderInfo ${HEADER_PATH}/RenderInfo
${HEADER_PATH}/SampleMaski ${HEADER_PATH}/SampleMaski
${HEADER_PATH}/Scissor ${HEADER_PATH}/Scissor
${HEADER_PATH}/ScissorIndexed
${HEADER_PATH}/ScriptEngine ${HEADER_PATH}/ScriptEngine
${HEADER_PATH}/Sequence ${HEADER_PATH}/Sequence
${HEADER_PATH}/ShadeModel ${HEADER_PATH}/ShadeModel
@ -348,6 +349,7 @@ SET(TARGET_SRC
Referenced.cpp Referenced.cpp
SampleMaski.cpp SampleMaski.cpp
Scissor.cpp Scissor.cpp
ScissorIndexed.cpp
ScriptEngine.cpp ScriptEngine.cpp
Sequence.cpp Sequence.cpp
ShadeModel.cpp ShadeModel.cpp

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@ -0,0 +1,57 @@
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2014 Robert Osfield
*
* This library is open source and may be redistributed and/or modified under
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
* (at your option) any later version. The full license is in LICENSE file
* included with this distribution, and on the openscenegraph.org website.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* OpenSceneGraph Public License for more details.
*/
#include <osg/ScissorIndexed>
#include <osg/GLExtensions>
#include <osg/State>
using namespace osg;
ScissorIndexed::ScissorIndexed():
_index(0),
_x(0.0f),
_y(0.0f),
_width(800.0f),
_height(600.0f) // defaults same as osg::Viewport and osg::Scissor
{
}
ScissorIndexed::~ScissorIndexed()
{
}
void ScissorIndexed::setIndex(unsigned int index)
{
if (_index==index) return;
ReassignToParents needToReassingToParentsWhenMemberValueChanges(this);
_index = index;
}
void ScissorIndexed::apply(State& state) const
{
const GLExtensions* extensions = state.get<GLExtensions>();
if (extensions->glScissorIndexed)
{
extensions->glScissorIndexed(static_cast<GLuint>(_index),
static_cast<GLfloat>(_x),
static_cast<GLfloat>(_y),
static_cast<GLfloat>(_width),
static_cast<GLfloat>(_height));
}
else
{
OSG_WARN<<"Warning: ScissorIndexed::apply(..) failed, glScissorIndexed is not support by OpenGL driver."<<std::endl;
}
}