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|
/*=========================================================================
Program: Visualization Toolkit
Module: vtkOpenGLPainterDeviceAdapter.cxx
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
/*
* Copyright 2004 Sandia Corporation.
* Under the terms of Contract DE-AC04-94AL85000, there is a non-exclusive
* license for use of this work by or on behalf of the
* U.S. Government. Redistribution and use in source and binary forms, with
* or without modification, are permitted provided that this Notice and any
* statement of authorship are reproduced on all copies.
*/
#include "vtkOpenGLPainterDeviceAdapter.h"
#include "vtkDataArray.h"
#include "vtkDataSetAttributes.h"
#include "vtkObjectFactory.h"
#include "vtkOpenGLGL2PSHelper.h"
#include "vtkOpenGLRenderWindow.h"
#include "vtkRenderer.h"
#include "vtkgl.h"
#include <algorithm>
#include "vtkOpenGL.h"
#include "vtkOpenGLError.h"
vtkStandardNewMacro(vtkOpenGLPainterDeviceAdapter);
//-----------------------------------------------------------------------------
vtkOpenGLPainterDeviceAdapter::vtkOpenGLPainterDeviceAdapter()
{
this->PointSize = 1.0;
this->RangeNear = 0.0;
this->RangeFar = 1.0;
this->MaxStencil = 0;
this->Initialized = false;
}
//-----------------------------------------------------------------------------
vtkOpenGLPainterDeviceAdapter::~vtkOpenGLPainterDeviceAdapter()
{
}
//-----------------------------------------------------------------------------
void vtkOpenGLPainterDeviceAdapter::PrintSelf(ostream &os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
}
//-----------------------------------------------------------------------------
// This array is a map from VTK primitive identifiers (VTK_VERTEX, VTK_LINE,
// etc.) to OpenGL polygon primitive identifiers (GL_POINTS, GL_LINES, etc.)
// Note that some VTK polygon types (e.g. VTK_EMPTY_CELL and VTK_PIXEL) have no
// analogue in OpenGL. Using them will undoubtedly result in an OpenGL error.
static const GLenum VTK2OpenGLPrimitive[] = {
static_cast<GLenum>(0xFFFF), // 0 - VTK_EMPTY_CELL
GL_POINTS, // 1 - VTK_VERTEX
GL_POINTS, // 2 - VTK_POLY_VERTEX
GL_LINES, // 3 - VTK_LINE
GL_LINE_STRIP, // 4 - VTK_POLY_LINE
GL_TRIANGLES, // 5 - VTK_TRIANGLE
GL_TRIANGLE_STRIP, // 6 - VTK_TRIANGLE_STRIP
GL_POLYGON, // 7 - VTK_POLYGON
static_cast<GLenum>(0xFFFF), // 8 - VTK_PIXEL
GL_QUADS, // 9 - VTK_QUAD
GL_LINE_LOOP // 10 - VTK_TETRA
};
static inline GLenum VTK2OpenGLType(int type)
{
switch (type)
{
#if VTK_SIZEOF_CHAR == 1
case VTK_CHAR: return GL_BYTE;
case VTK_UNSIGNED_CHAR: return GL_UNSIGNED_BYTE;
#elif VTK_SIZE_OF_CHAR == 2
case VTK_CHAR: return GL_SHORT;
case VTK_UNSIGNED CHAR: return GL_UNSIGNED_SHORT;
#endif
#if VTK_SIZEOF_SHORT == 1
case VTK_SHORT: return GL_BYTE;
case VTK_UNSIGNED_SHORT: return GL_UNSIGNED_BYTE;
#elif VTK_SIZEOF_SHORT == 2
case VTK_SHORT: return GL_SHORT;
case VTK_UNSIGNED_SHORT: return GL_UNSIGNED_SHORT;
#elif VTK_SIZEOF_SHORT == 4
case VTK_SHORT: return GL_INT;
case VTK_UNSIGNED_SHORT: return GL_UNSIGNED_INT;
#endif
#if VTK_SIZEOF_INT == 2
case VTK_INT: return GL_SHORT;
case VTK_UNSIGNED_INT: return GL_UNSIGNED_SHORT;
#elif VTK_SIZEOF_INT == 4
case VTK_INT: return GL_INT;
case VTK_UNSIGNED_INT: return GL_UNSIGNED_INT;
#endif
#if VTK_SIZEOF_LONG == 4
case VTK_LONG: return GL_INT;
case VTK_UNSIGNED_LONG: return GL_UNSIGNED_INT;
#endif
#if VTK_SIZEOF_ID_TYPE == 4
case VTK_ID_TYPE: return GL_INT;
#endif
#if VTK_SIZEOF_FLOAT == 4
case VTK_FLOAT: return GL_FLOAT;
#elif VTK_SIZEOF_FLOAT == 8
case VTK_FLOAT: return GL_DOUBLE;
#endif
#if VTK_SIZEOF_DOUBLE == 4
case VTK_DOUBLE: return GL_FLOAT;
#elif VTK_SIZEOF_DOUBLE == 8
case VTK_DOUBLE: return GL_DOUBLE;
#endif
default: return GL_FALSE;
}
}
static inline GLenum VTK2SignedOpenGLType(int type)
{
switch (type)
{
#if VTK_SIZEOF_CHAR == 1
case VTK_CHAR: return GL_BYTE;
case VTK_UNSIGNED_CHAR: return GL_BYTE;
#elif VTK_SIZE_OF_CHAR == 2
case VTK_CHAR: return GL_SHORT;
case VTK_UNSIGNED CHAR: return GL_SHORT;
#endif
#if VTK_SIZEOF_SHORT == 1
case VTK_SHORT: return GL_BYTE;
case VTK_UNSIGNED_SHORT: return GL_BYTE;
#elif VTK_SIZEOF_SHORT == 2
case VTK_SHORT: return GL_SHORT;
case VTK_UNSIGNED_SHORT: return GL_SHORT;
#elif VTK_SIZEOF_SHORT == 4
case VTK_SHORT: return GL_INT;
case VTK_UNSIGNED_SHORT: return GL_INT;
#endif
#if VTK_SIZEOF_INT == 2
case VTK_INT: return GL_SHORT;
case VTK_UNSIGNED_INT: return GL_SHORT;
#elif VTK_SIZEOF_INT == 4
case VTK_INT: return GL_INT;
case VTK_UNSIGNED_INT: return GL_INT;
#endif
#if VTK_SIZEOF_ID_TYPE == 4
case VTK_ID_TYPE: return GL_INT;
#endif
#if VTK_SIZEOF_LONG == 4
case VTK_LONG: return GL_INT;
case VTK_UNSIGNED_LONG: return GL_INT;
#endif
#if VTK_SIZEOF_FLOAT == 4
case VTK_FLOAT: return GL_FLOAT;
#elif VTK_SIZEOF_FLOAT == 8
case VTK_FLOAT: return GL_DOUBLE;
#endif
#if VTK_SIZEOF_DOUBLE == 4
case VTK_DOUBLE: return GL_FLOAT;
#elif VTK_SIZEOF_DOUBLE == 8
case VTK_DOUBLE: return GL_DOUBLE;
#endif
default: return GL_FALSE;
}
}
static inline GLenum VTK2UnsignedOpenGLType(int type)
{
switch (type)
{
#if VTK_SIZEOF_CHAR == 1
case VTK_CHAR: return GL_UNSIGNED_BYTE;
case VTK_UNSIGNED_CHAR: return GL_UNSIGNED_BYTE;
#elif VTK_SIZE_OF_CHAR == 2
case VTK_CHAR: return GL_UNSIGNED_SHORT;
case VTK_UNSIGNED CHAR: return GL_UNSIGNED_SHORT;
#endif
#if VTK_SIZEOF_SHORT == 1
case VTK_SHORT: return GL_UNSIGNED_BYTE;
case VTK_UNSIGNED_SHORT: return GL_UNSIGNED_BYTE;
#elif VTK_SIZEOF_SHORT == 2
case VTK_SHORT: return GL_UNSIGNED_SHORT;
case VTK_UNSIGNED_SHORT: return GL_UNSIGNED_SHORT;
#elif VTK_SIZEOF_SHORT == 4
case VTK_SHORT: return GL_UNSIGNED_INT;
case VTK_UNSIGNED_SHORT: return GL_UNSIGNED_INT;
#endif
#if VTK_SIZEOF_INT == 2
case VTK_INT: return GL_UNSIGNED_SHORT;
case VTK_UNSIGNED_INT: return GL_UNSIGNED_SHORT;
#elif VTK_SIZEOF_INT == 4
case VTK_INT: return GL_UNSIGNED_INT;
case VTK_UNSIGNED_INT: return GL_UNSIGNED_INT;
#endif
#if VTK_SIZEOF_ID_TYPE == 4
case VTK_ID_TYPE: return GL_UNSIGNED_INT;
#endif
#if VTK_SIZEOF_LONG == 4
case VTK_LONG: return GL_UNSIGNED_INT;
case VTK_UNSIGNED_LONG: return GL_UNSIGNED_INT;
#endif
default: return GL_FALSE;
}
}
//-----------------------------------------------------------------------------
void vtkOpenGLPainterDeviceAdapter::BeginPrimitive(int mode)
{
glBegin(VTK2OpenGLPrimitive[mode]);
}
//-----------------------------------------------------------------------------
void vtkOpenGLPainterDeviceAdapter::EndPrimitive()
{
glEnd();
}
//-----------------------------------------------------------------------------
int vtkOpenGLPainterDeviceAdapter::IsAttributesSupported(int attribute)
{
switch(attribute)
{
case vtkDataSetAttributes::NUM_ATTRIBUTES:
case vtkDataSetAttributes::NORMALS:
case vtkDataSetAttributes::SCALARS:
case vtkDataSetAttributes::TCOORDS:
case vtkDataSetAttributes::EDGEFLAG:
return 1;
}
return 0;
}
//-----------------------------------------------------------------------------
void vtkOpenGLPainterDeviceAdapter::SendAttribute(int index, int numcomp,
int type, const void *attribute, vtkIdType offset/*=0*/)
{
switch (index)
{
case vtkDataSetAttributes::NUM_ATTRIBUTES: // Vertex
if ((numcomp < 2) || (numcomp > 4))
{
vtkErrorMacro("Bad number of components.");
return;
}
switch (VTK2SignedOpenGLType(type))
{
case GL_SHORT:
switch (numcomp)
{
case 2:
glVertex2sv(static_cast<const GLshort *>(attribute) + offset);
break;
case 3:
glVertex3sv(static_cast<const GLshort *>(attribute) + offset);
break;
case 4:
glVertex4sv(static_cast<const GLshort *>(attribute) + offset);
break;
}
break;
case GL_INT:
switch (numcomp)
{
case 2:
glVertex2iv(static_cast<const GLint *>(attribute) + offset);
break;
case 3:
glVertex3iv(static_cast<const GLint *>(attribute) + offset);
break;
case 4:
glVertex4iv(static_cast<const GLint *>(attribute) + offset);
break;
}
break;
case GL_FLOAT:
switch (numcomp)
{
case 2:
glVertex2fv(static_cast<const GLfloat *>(attribute) + offset);
break;
case 3:
glVertex3fv(static_cast<const GLfloat *>(attribute) + offset);
break;
case 4:
glVertex4fv(static_cast<const GLfloat *>(attribute) + offset);
break;
}
break;
case GL_DOUBLE:
switch (numcomp)
{
case 2:
glVertex2dv(static_cast<const GLdouble *>(attribute) + offset);
break;
case 3:
glVertex3dv(static_cast<const GLdouble *>(attribute) + offset);
break;
case 4:
glVertex4dv(static_cast<const GLdouble *>(attribute) + offset);
break;
}
break;
default:
vtkErrorMacro("Unsupported type for vertices: " << type);
return;
}
break;
case vtkDataSetAttributes::NORMALS: // Normal
if (numcomp != 3)
{
vtkErrorMacro("Bad number of components.");
return;
}
switch (VTK2SignedOpenGLType(type))
{
case GL_BYTE:
glNormal3bv(static_cast<const GLbyte *>(attribute) + offset);
break;
case GL_SHORT:
glNormal3sv(static_cast<const GLshort *>(attribute) + offset);
break;
case GL_INT:
glNormal3iv(static_cast<const GLint *>(attribute) + offset);
break;
case GL_FLOAT:
glNormal3fv(static_cast<const GLfloat *>(attribute) + offset);
break;
case GL_DOUBLE:
glNormal3dv(static_cast<const GLdouble *>(attribute) + offset);
break;
default:
vtkErrorMacro("Unsupported type for normals: " << type);
return;
}
break;
case vtkDataSetAttributes::SCALARS: // Color
if ((numcomp != 3) && (numcomp != 4))
{
vtkErrorMacro("Bad number of components.");
return;
}
switch (VTK2OpenGLType(type))
{
case GL_BYTE:
switch (numcomp)
{
case 3: glColor3bv(static_cast<const GLbyte *>(attribute) + offset);
break;
case 4: glColor4bv(static_cast<const GLbyte *>(attribute) + offset);
break;
}
break;
case GL_UNSIGNED_BYTE:
switch (numcomp)
{
case 3: glColor3ubv(static_cast<const GLubyte *>(attribute) + offset);
break;
case 4: glColor4ubv(static_cast<const GLubyte *>(attribute) + offset);
break;
}
break;
case GL_SHORT:
switch (numcomp)
{
case 3: glColor3sv(static_cast<const GLshort *>(attribute) + offset);
break;
case 4: glColor4sv(static_cast<const GLshort *>(attribute) + offset);
break;
}
break;
case GL_UNSIGNED_SHORT:
switch (numcomp)
{
case 3: glColor3usv(static_cast<const GLushort *>(attribute) + offset);
break;
case 4: glColor4usv(static_cast<const GLushort *>(attribute) + offset);
break;
}
break;
case GL_INT:
switch (numcomp)
{
case 3: glColor3iv(static_cast<const GLint *>(attribute) + offset);
break;
case 4: glColor4iv(static_cast<const GLint *>(attribute) + offset);
break;
}
break;
case GL_UNSIGNED_INT:
switch (numcomp)
{
case 3: glColor3uiv(static_cast<const GLuint *>(attribute) + offset);
break;
case 4: glColor4uiv(static_cast<const GLuint *>(attribute) + offset);
break;
}
break;
case GL_FLOAT:
switch (numcomp)
{
case 3: glColor3fv(static_cast<const GLfloat *>(attribute) + offset);
break;
case 4: glColor4fv(static_cast<const GLfloat *>(attribute) + offset);
break;
}
break;
case GL_DOUBLE:
switch (numcomp)
{
case 3: glColor3dv(static_cast<const GLdouble *>(attribute) + offset);
break;
case 4: glColor4dv(static_cast<const GLdouble *>(attribute) + offset);
break;
}
break;
default:
vtkErrorMacro("Unsupported type for colors: " << type);
return;
}
break;
case vtkDataSetAttributes::TCOORDS: // Texture Coordinate
if ((numcomp < 1) || (numcomp > 4))
{
vtkErrorMacro("Bad number of components.");
return;
}
switch (VTK2SignedOpenGLType(type))
{
case GL_SHORT:
switch (numcomp)
{
case 1:
glTexCoord1sv(static_cast<const GLshort *>(attribute) + offset);
break;
case 2:
glTexCoord2sv(static_cast<const GLshort *>(attribute) + offset);
break;
case 3:
glTexCoord3sv(static_cast<const GLshort *>(attribute) + offset);
break;
case 4:
glTexCoord4sv(static_cast<const GLshort *>(attribute) + offset);
break;
}
break;
case GL_INT:
switch (numcomp)
{
case 1:
glTexCoord1iv(static_cast<const GLint *>(attribute) + offset);
break;
case 2:
glTexCoord2iv(static_cast<const GLint *>(attribute) + offset);
break;
case 3:
glTexCoord3iv(static_cast<const GLint *>(attribute) + offset);
break;
case 4:
glTexCoord4iv(static_cast<const GLint *>(attribute) + offset);
break;
}
break;
case GL_FLOAT:
switch (numcomp)
{
case 1:
glTexCoord1fv(static_cast<const GLfloat *>(attribute) + offset);
break;
case 2:
glTexCoord2fv(static_cast<const GLfloat *>(attribute) + offset);
break;
case 3:
glTexCoord3fv(static_cast<const GLfloat *>(attribute) + offset);
break;
case 4:
glTexCoord4fv(static_cast<const GLfloat *>(attribute) + offset);
break;
}
break;
case GL_DOUBLE:
switch (numcomp)
{
case 1:
glTexCoord1dv(static_cast<const GLdouble *>(attribute) + offset);
break;
case 2:
glTexCoord2dv(static_cast<const GLdouble *>(attribute) + offset);
break;
case 3:
glTexCoord3dv(static_cast<const GLdouble *>(attribute) + offset);
break;
case 4:
glTexCoord4dv(static_cast<const GLdouble *>(attribute) + offset);
break;
}
break;
default:
vtkErrorMacro("Unsupported type for texture coordinates: " << type);
return;
}
break;
case vtkDataSetAttributes::EDGEFLAG: // Edge Flag
if (numcomp != 1)
{
vtkErrorMacro("Bad number of components.");
return;
}
switch (type)
{
vtkTemplateMacro(glEdgeFlag(static_cast<GLboolean>(
reinterpret_cast<const VTK_TT*>(attribute)[offset])));
}
break;
default:
vtkErrorMacro("Unsupported attribute index: " << index);
return;
};
}
//-----------------------------------------------------------------------------
void vtkOpenGLPainterDeviceAdapter::SendMultiTextureCoords(int numcomp,
int type, const void *attribute, int idx, vtkIdType offset)
{
if(! vtkgl::MultiTexCoord2d)
{
vtkErrorMacro("MultiTexturing not supported.");
return;
}
if ((numcomp < 1) || (numcomp > 4))
{
vtkErrorMacro("Bad number of components.");
return;
}
int textureIndex = vtkgl::TEXTURE0 + idx;
switch (VTK2SignedOpenGLType(type))
{
case GL_SHORT:
switch (numcomp)
{
case 1:
vtkgl::MultiTexCoord1sv(textureIndex, static_cast<const GLshort *>(attribute) + offset);
break;
case 2:
vtkgl::MultiTexCoord2sv(textureIndex, static_cast<const GLshort *>(attribute) + offset);
break;
case 3:
vtkgl::MultiTexCoord3sv(textureIndex, static_cast<const GLshort *>(attribute) + offset);
break;
case 4:
vtkgl::MultiTexCoord4sv(textureIndex, static_cast<const GLshort *>(attribute) + offset);
break;
}
break;
case GL_INT:
switch (numcomp)
{
case 1:
vtkgl::MultiTexCoord1iv(textureIndex, static_cast<const GLint *>(attribute) + offset);
break;
case 2:
vtkgl::MultiTexCoord2iv(textureIndex, static_cast<const GLint *>(attribute) + offset);
break;
case 3:
vtkgl::MultiTexCoord3iv(textureIndex, static_cast<const GLint *>(attribute) + offset);
break;
case 4:
vtkgl::MultiTexCoord4iv(textureIndex, static_cast<const GLint *>(attribute) + offset);
break;
}
break;
case GL_FLOAT:
switch (numcomp)
{
case 1:
vtkgl::MultiTexCoord1fv(textureIndex, static_cast<const GLfloat *>(attribute) + offset);
break;
case 2:
vtkgl::MultiTexCoord2fv(textureIndex, static_cast<const GLfloat *>(attribute) + offset);
break;
case 3:
vtkgl::MultiTexCoord3fv(textureIndex, static_cast<const GLfloat *>(attribute) + offset);
break;
case 4:
vtkgl::MultiTexCoord4fv(textureIndex, static_cast<const GLfloat *>(attribute) + offset);
break;
}
break;
case GL_DOUBLE:
switch (numcomp)
{
case 1:
vtkgl::MultiTexCoord1dv(textureIndex, static_cast<const GLdouble *>(attribute) + offset);
break;
case 2:
vtkgl::MultiTexCoord2dv(textureIndex, static_cast<const GLdouble *>(attribute) + offset);
break;
case 3:
vtkgl::MultiTexCoord3dv(textureIndex, static_cast<const GLdouble *>(attribute) + offset);
break;
case 4:
vtkgl::MultiTexCoord4dv(textureIndex, static_cast<const GLdouble *>(attribute) + offset);
break;
}
break;
default:
vtkErrorMacro("Unsupported type for texture coordinates: " << type);
return;
}
}
//-----------------------------------------------------------------------------
void vtkOpenGLPainterDeviceAdapter::SetAttributePointer(int index,
int numcomponents,
int type, int stride,
const void *pointer)
{
GLenum gltype;
switch (index)
{
case vtkDataSetAttributes::NUM_ATTRIBUTES: // Vertex
gltype = VTK2SignedOpenGLType(type);
switch (gltype)
{
case GL_SHORT:
case GL_INT:
case GL_FLOAT:
case GL_DOUBLE:
break;
default:
vtkErrorMacro("Unsupported type for vertices: " << type);
return;
}
glVertexPointer(numcomponents, gltype, stride, pointer);
break;
case vtkDataSetAttributes::NORMALS: // Normal
gltype = VTK2SignedOpenGLType(type);
switch (gltype)
{
case GL_BYTE:
case GL_SHORT:
case GL_INT:
case GL_FLOAT:
case GL_DOUBLE:
break;
default:
vtkErrorMacro("Unsupported type for normals: " << type);
return;
}
if (numcomponents != 3)
{
vtkErrorMacro("Unsupported number of components for normals.");
return;
}
glNormalPointer(gltype, stride, pointer);
break;
case vtkDataSetAttributes::SCALARS: // Color
gltype = VTK2OpenGLType(type);
switch (gltype)
{
case GL_BYTE:
case GL_UNSIGNED_BYTE:
case GL_SHORT:
case GL_UNSIGNED_SHORT:
case GL_INT:
case GL_UNSIGNED_INT:
case GL_FLOAT:
case GL_DOUBLE:
break;
default:
vtkErrorMacro("Unsupported type for colors: " << type);
return;
}
glColorPointer(numcomponents, gltype, stride, pointer);
break;
case vtkDataSetAttributes::TCOORDS: // Texture Coordinate
gltype = VTK2SignedOpenGLType(type);
switch (gltype)
{
case GL_SHORT:
case GL_INT:
case GL_FLOAT:
case GL_DOUBLE:
break;
default:
vtkErrorMacro("Unsupported type for texture coordinates: " << type);
return;
}
glTexCoordPointer(numcomponents, gltype, stride, pointer);
break;
case vtkDataSetAttributes::EDGEFLAG: // Edge flag
if (numcomponents != 1)
{
vtkErrorMacro("Edge flag must have one component.");
return;
}
// Flag must be conformant to GLboolean
if ((type == VTK_FLOAT) || (type == GL_DOUBLE))
{
vtkErrorMacro("Unsupported type for edge flag: " << type);
return;
}
// Thus is an unfriendly way to force the array to be conformant to
// a GLboolean array. At the very least there should be some indication
// in VTK outside of OpenGL to determine which VTK type to use.
switch (type)
{
vtkTemplateMacro(if (sizeof(VTK_TT) != sizeof(GLboolean))
{
vtkErrorMacro(<< "Unsupported tyep for edge flag: "
<< type);
return;
}
);
}
glEdgeFlagPointer(stride, pointer);
break;
default:
vtkErrorMacro("Unsupported attribute index: " << index);
return;
};
}
//-----------------------------------------------------------------------------
void vtkOpenGLPainterDeviceAdapter::EnableAttributeArray(int index)
{
switch (index)
{
case vtkDataSetAttributes::NUM_ATTRIBUTES:
glEnableClientState(GL_VERTEX_ARRAY); break;
case vtkDataSetAttributes::NORMALS:
glEnableClientState(GL_NORMAL_ARRAY); break;
case vtkDataSetAttributes::SCALARS:
glEnableClientState(GL_COLOR_ARRAY); break;
case vtkDataSetAttributes::TCOORDS:
glEnableClientState(GL_TEXTURE_COORD_ARRAY); break;
case vtkDataSetAttributes::EDGEFLAG:
glEnableClientState(GL_EDGE_FLAG_ARRAY); break;
default:
vtkErrorMacro("Unsupported attribute index: " << index);
return;
};
}
void vtkOpenGLPainterDeviceAdapter::DisableAttributeArray(int index)
{
switch (index)
{
case vtkDataSetAttributes::NUM_ATTRIBUTES:
glDisableClientState(GL_VERTEX_ARRAY); break;
case vtkDataSetAttributes::NORMALS:
glDisableClientState(GL_NORMAL_ARRAY); break;
case vtkDataSetAttributes::SCALARS:
glDisableClientState(GL_COLOR_ARRAY); break;
case vtkDataSetAttributes::TCOORDS:
glDisableClientState(GL_TEXTURE_COORD_ARRAY); break;
case vtkDataSetAttributes::EDGEFLAG:
glDisableClientState(GL_EDGE_FLAG_ARRAY); break;
default:
vtkErrorMacro("Unsupported attribute index: " << index);
return;
};
}
//-----------------------------------------------------------------------------
void vtkOpenGLPainterDeviceAdapter::DrawArrays(int mode, vtkIdType first,
vtkIdType count)
{
glDrawArrays(VTK2OpenGLPrimitive[mode],static_cast<GLint>(first),
static_cast<GLsizei>(count));
}
void vtkOpenGLPainterDeviceAdapter::DrawElements(int mode, vtkIdType count,
int type, void *indices)
{
GLenum gltype = VTK2UnsignedOpenGLType(type);
switch (gltype)
{
case GL_UNSIGNED_BYTE:
case GL_UNSIGNED_SHORT:
case GL_UNSIGNED_INT:
break;
default:
if (type == VTK_ID_TYPE)
{
// This seems really inefficient for handling vtkIdType when they
// are 64 bit, but OpenGL does not handle 64 bit indices. What
// else can I do?
vtkIdType *oldarray = static_cast<vtkIdType *>(indices);
GLuint *newarray = new GLuint[count];
std::copy(oldarray, oldarray + count, newarray);
glDrawElements(VTK2OpenGLPrimitive[mode], static_cast<GLsizei>(count),
GL_UNSIGNED_INT, newarray);
delete[] newarray;
return;
}
else
{
vtkErrorMacro("Invalid type for indices.");
return;
}
}
glDrawElements(VTK2OpenGLPrimitive[mode],static_cast<GLsizei>(count), gltype,
indices);
}
//-----------------------------------------------------------------------------
int vtkOpenGLPainterDeviceAdapter::Compatible(vtkRenderer *renderer)
{
vtkOpenGLRenderWindow *context
= vtkOpenGLRenderWindow::SafeDownCast(renderer->GetRenderWindow());
if (!context)
{
return false;
}
return true;
}
//-----------------------------------------------------------------------------
void vtkOpenGLPainterDeviceAdapter::MakeVertexEmphasis(bool mode)
{
if (mode)
{
float s;
glGetFloatv(GL_POINT_SIZE, &s);
this->PointSize = s;
glPointSize(4.0); //make verts large enough to be sure to overlap cell
vtkOpenGLGL2PSHelper::SetPointSize(4.0);
float nf[2]; //put verts just in front of associated cells
glGetFloatv(GL_DEPTH_RANGE, nf);
this->RangeNear = nf[0];
this->RangeFar = nf[1];
glDepthRange(0.0, nf[1]*0.999999);
glDepthMask(GL_FALSE); //prevent verts from interfering with each other
}
else
{
glPointSize(static_cast<GLfloat>(this->PointSize));
vtkOpenGLGL2PSHelper::SetPointSize(static_cast<GLfloat>(this->PointSize));
glDepthRange(this->RangeNear, this->RangeFar);
glDepthMask(GL_TRUE);
}
vtkOpenGLCheckErrorMacro("failed after MakeVertexEmphasis");
}
//-----------------------------------------------------------------------------
void vtkOpenGLPainterDeviceAdapter::WriteStencil(vtkIdType value)
{
if (this->MaxStencil)
{
value = value % this->MaxStencil + 1;
if (value == 1)
{
glClearStencil(0); //start over so don't write into some previous area
}
glStencilFunc(GL_ALWAYS, static_cast<GLint>(value), this->MaxStencil);
glStencilOp(GL_KEEP, GL_KEEP, GL_REPLACE);
vtkOpenGLCheckErrorMacro("failed after WriteStencil");
}
}
//-----------------------------------------------------------------------------
void vtkOpenGLPainterDeviceAdapter::TestStencil(vtkIdType value)
{
if (this->MaxStencil)
{
value = value % this->MaxStencil + 1;
glStencilFunc(GL_EQUAL, static_cast<GLint>(value), this->MaxStencil);
glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);
vtkOpenGLCheckErrorMacro("failed after TestStencil");
}
}
//-----------------------------------------------------------------------------
void vtkOpenGLPainterDeviceAdapter::Stencil(int on)
{
if (on)
{
glEnable(GL_STENCIL_TEST);
GLint stencilbits;
glGetIntegerv(GL_STENCIL_BITS, &stencilbits);
this->MaxStencil = (1<<stencilbits)-1;
}
else
{
glDisable(GL_STENCIL_TEST);
}
vtkOpenGLCheckErrorMacro("failed after Stencil");
}
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