Hi,
attached is a fixed version of Texture.cpp. assumeSizedInternalFormat
has contained an infinite loop and iterated over a too large range.
Regards,
Tom
--
Thomas Geymayer www.tomprogs.at / C-Forum und Tutorial: www.proggen.org
------------------------------------------------------------------------
Institute for Computer Graphics and Vision/Graz University of Technology
------------------------------- Austria --------------------------------
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 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/GLExtensions>
#include <osg/Image>
#include <osg/Texture>
#include <osg/State>
#include <osg/Notify>
#include <osg/GLU>
#include <osg/Timer>
#include <osg/ApplicationUsage>
#include <osg/FrameBufferObject>
#include <osg/TextureRectangle>
#include <osg/Texture1D>
#include <OpenThreads/ScopedLock>
#include <OpenThreads/Mutex>
#ifndef GL_TEXTURE_WRAP_R
#define GL_TEXTURE_WRAP_R 0x8072
#endif
#ifndef GL_TEXTURE_MAX_LEVEL
#define GL_TEXTURE_MAX_LEVEL 0x813D
#endif
#ifndef GL_UNPACK_CLIENT_STORAGE_APPLE
#define GL_UNPACK_CLIENT_STORAGE_APPLE 0x85B2
#endif
#ifndef GL_APPLE_vertex_array_range
#define GL_VERTEX_ARRAY_RANGE_APPLE 0x851D
#define GL_VERTEX_ARRAY_RANGE_LENGTH_APPLE 0x851E
#define GL_VERTEX_ARRAY_STORAGE_HINT_APPLE 0x851F
#define GL_VERTEX_ARRAY_RANGE_POINTER_APPLE 0x8521
#define GL_STORAGE_CACHED_APPLE 0x85BE
#define GL_STORAGE_SHARED_APPLE 0x85BF
#endif
#ifndef GL_RGB565
#define GL_RGB565 0x8D62
#endif
#if 0
#define CHECK_CONSISTENCY checkConsistency();
#else
#define CHECK_CONSISTENCY
#endif
namespace osg {
ApplicationUsageProxy Texture_e0(ApplicationUsage::ENVIRONMENTAL_VARIABLE,"OSG_MAX_TEXTURE_SIZE","Set the maximum size of textures.");
ApplicationUsageProxy Texture_e1(ApplicationUsage::ENVIRONMENTAL_VARIABLE,"OSG_GL_TEXTURE_STORAGE","ON|OFF or ENABLE|DISABLE, Enables/disables usage of glTexStorage for textures where supported, default is ENABLED.");
typedef buffered_value< ref_ptr<Texture::Extensions> > BufferedExtensions;
static BufferedExtensions s_extensions;
struct InternalPixelRelations
{
GLenum sizedInternalFormat;
GLint internalFormat;
GLenum type;
};
InternalPixelRelations sizedInternalFormats[] = {
{ GL_R8UI , GL_RED_INTEGER_EXT , GL_UNSIGNED_BYTE }
, { GL_R8I , GL_RED_INTEGER_EXT , GL_BYTE }
, { GL_R16UI , GL_RED_INTEGER_EXT , GL_UNSIGNED_SHORT }
, { GL_R16I , GL_RED_INTEGER_EXT , GL_SHORT }
, { GL_R32UI , GL_RED_INTEGER_EXT , GL_UNSIGNED_INT }
, { GL_R32I , GL_RED_INTEGER_EXT , GL_INT }
, { GL_RG8UI , GL_RG_INTEGER , GL_UNSIGNED_BYTE }
, { GL_RG8I , GL_RG_INTEGER , GL_BYTE }
, { GL_RG16UI , GL_RG_INTEGER , GL_UNSIGNED_SHORT }
, { GL_RG16I , GL_RG_INTEGER , GL_SHORT }
, { GL_RG32UI , GL_RG_INTEGER , GL_UNSIGNED_INT }
, { GL_RG32I , GL_RG_INTEGER , GL_INT }
, { GL_RGB8UI_EXT , GL_RGB_INTEGER_EXT , GL_UNSIGNED_BYTE }
, { GL_RGB8I_EXT , GL_RGB_INTEGER_EXT , GL_BYTE }
, { GL_RGB16UI_EXT , GL_RGB_INTEGER_EXT , GL_UNSIGNED_SHORT }
, { GL_RGB16I_EXT , GL_RGB_INTEGER_EXT , GL_SHORT }
, { GL_RGB32UI_EXT , GL_RGB_INTEGER_EXT , GL_UNSIGNED_INT }
, { GL_RGB32I_EXT , GL_RGB_INTEGER_EXT , GL_INT }
, { GL_RGBA8UI_EXT , GL_RGBA_INTEGER_EXT , GL_UNSIGNED_BYTE }
, { GL_RGBA8I_EXT , GL_RGBA_INTEGER_EXT , GL_BYTE }
// , { GL_RGB10_A2UI_EXT , GL_RGBA_INTEGER_EXT , GL_UNSIGNED_INT_2_10_10_10_REV }
, { GL_RGBA16UI_EXT , GL_RGBA_INTEGER_EXT , GL_UNSIGNED_SHORT }
, { GL_RGBA16I_EXT , GL_RGBA_INTEGER_EXT , GL_SHORT }
, { GL_RGBA32I_EXT , GL_RGBA_INTEGER_EXT , GL_INT }
, { GL_RGBA32UI_EXT , GL_RGBA_INTEGER_EXT , GL_UNSIGNED_INT }
, { GL_R8_SNORM , GL_RED , GL_BYTE }
, { GL_R16_SNORM , GL_RED , GL_SHORT }
, { GL_RG8_SNORM , GL_RG , GL_BYTE }
, { GL_RG16_SNORM , GL_RG , GL_SHORT }
, { GL_RGB8_SNORM , GL_RGB , GL_BYTE }
, { GL_RGB16_SNORM , GL_RGB , GL_SHORT }
, { GL_RGBA8_SNORM , GL_RGBA , GL_BYTE }
, { GL_SRGB8 , GL_RGB , GL_UNSIGNED_BYTE }
, { GL_SRGB8_ALPHA8 , GL_RGBA , GL_UNSIGNED_BYTE }
, { GL_R8 , GL_RED , GL_UNSIGNED_BYTE }
, { GL_R16F , GL_RED , GL_HALF_FLOAT }
, { GL_R16F , GL_RED , GL_FLOAT }
, { GL_R32F , GL_RED , GL_FLOAT }
, { GL_RG8 , GL_RG , GL_UNSIGNED_BYTE }
, { GL_RG16F , GL_RG , GL_HALF_FLOAT }
, { GL_RG16F , GL_RG , GL_FLOAT }
, { GL_RG32F , GL_RG , GL_FLOAT }
// , ( GL_RGBA2 , GL_RGB , UNKNOWN )
, { GL_R3_G3_B2 , GL_RGB , GL_UNSIGNED_BYTE_3_3_2 }
, { GL_R3_G3_B2 , GL_RGB , GL_UNSIGNED_BYTE_2_3_3_REV }
, { GL_RGB4 , GL_RGB , GL_UNSIGNED_SHORT_4_4_4_4 }
, { GL_RGB4 , GL_RGB , GL_UNSIGNED_SHORT_4_4_4_4_REV }
, { GL_RGB5 , GL_RGB , GL_UNSIGNED_SHORT_5_5_5_1 }
, { GL_RGB5 , GL_RGB , GL_UNSIGNED_SHORT_1_5_5_5_REV }
, { GL_RGB565 , GL_RGB , GL_UNSIGNED_BYTE }
, { GL_RGB565 , GL_RGB , GL_UNSIGNED_SHORT_5_6_5 }
, { GL_RGB565 , GL_RGB , GL_UNSIGNED_SHORT_5_6_5_REV }
, { GL_RGB8 , GL_RGB , GL_UNSIGNED_BYTE }
// , { GL_RGB9_E5 , GL_RGB , GL_UNSIGNED_INT_9_9_9_5, }
// , { GL_RGB9_E5 , GL_RGB , GL_UNSIGNED_INT_5_9_9_9_REV, }
// , { GL_RGB9_E5 , GL_RGB , GL_HALF_FLOAT }
// , { GL_RGB9_E5 , GL_RGB , GL_FLOAT }
// , { GL_R11F_G11F_B10F , GL_RGB , GL_UNSIGNED_INT_10F_11F_11F_REV }
// , { GL_R11F_G11F_B10F , GL_RGB , GL_HALF_FLOAT }
// , { GL_R11F_G11F_B10F , GL_RGB , GL_FLOAT }
, { GL_RGB10 , GL_RGB , GL_UNSIGNED_INT_2_10_10_10_REV }
, { GL_RGB10 , GL_RGB , GL_UNSIGNED_INT_10_10_10_2 }
, { GL_RGB12 , GL_RGB , GL_UNSIGNED_SHORT }
, { GL_RGB16F_ARB , GL_RGB , GL_HALF_FLOAT }
, { GL_RGB16F_ARB , GL_RGB , GL_FLOAT }
, { GL_RGB32F_ARB , GL_RGB , GL_FLOAT }
, { GL_RGB5_A1 , GL_RGBA , GL_UNSIGNED_BYTE }
, { GL_RGB5_A1 , GL_RGBA , GL_UNSIGNED_SHORT_5_5_5_1 }
, { GL_RGB5_A1 , GL_RGBA , GL_UNSIGNED_SHORT_1_5_5_5_REV }
, { GL_RGB5_A1 , GL_RGBA , GL_UNSIGNED_INT_10_10_10_2 }
, { GL_RGB5_A1 , GL_RGBA , GL_UNSIGNED_INT_2_10_10_10_REV }
, { GL_RGBA4 , GL_RGBA , GL_UNSIGNED_BYTE }
, { GL_RGBA4 , GL_RGBA , GL_UNSIGNED_SHORT_4_4_4_4 }
, { GL_RGBA4 , GL_RGBA , GL_UNSIGNED_SHORT_4_4_4_4_REV }
, { GL_RGBA8 , GL_RGBA , GL_UNSIGNED_BYTE }
, { GL_RGB10_A2 , GL_RGBA , GL_UNSIGNED_INT_10_10_10_2 }
, { GL_RGB10_A2 , GL_RGBA , GL_UNSIGNED_INT_2_10_10_10_REV }
, { GL_RGBA12 , GL_RGBA , GL_UNSIGNED_SHORT }
// , { GL_RGBA16F , GL_RGBA , GL_HALF_FLOAT }
// , { GL_RGBA16F , GL_RGBA , GL_FLOAT }
// , { GL_RGBA32F , GL_RGBA , GL_FLOAT }
};
InternalPixelRelations sizedDepthAndStencilInternalFormats[] = {
{ GL_DEPTH_COMPONENT16 , GL_DEPTH_COMPONENT , GL_UNSIGNED_SHORT }
, { GL_DEPTH_COMPONENT16 , GL_DEPTH_COMPONENT , GL_UNSIGNED_INT }
, { GL_DEPTH_COMPONENT24 , GL_DEPTH_COMPONENT , GL_UNSIGNED_INT }
, { GL_DEPTH_COMPONENT32 , GL_DEPTH_COMPONENT , GL_UNSIGNED_INT }
, { GL_DEPTH_COMPONENT32F , GL_DEPTH_COMPONENT , GL_FLOAT }
// , { GL_DEPTH24_STENCIL8 , GL_DEPTH_STENCIL , GL_UNSIGNED_INT_24_8 }
// , { GL_DEPTH32F_STENCIL8 , GL_DEPTH_STENCIL , GL_FLOAT_32_UNSIGNED_INT_24_8_REV }
};
InternalPixelRelations compressedInternalFormats[] = {
// , { GL_COMPRESSED_RED , GL_RED , GL_COMPRESSED_RED }
// , { GL_COMPRESSED_RG , GL_RG , GL_COMPRESSED_RG }
{ GL_COMPRESSED_RGB , GL_RGB , GL_COMPRESSED_RGB }
, { GL_COMPRESSED_RGBA , GL_RGBA , GL_COMPRESSED_RGBA }
, { GL_COMPRESSED_SRGB , GL_RGB , GL_COMPRESSED_SRGB }
, { GL_COMPRESSED_SRGB_ALPHA , GL_RGBA , GL_COMPRESSED_SRGB_ALPHA }
, { GL_COMPRESSED_RED_RGTC1_EXT , GL_RED , GL_COMPRESSED_RED_RGTC1_EXT }
, { GL_COMPRESSED_SIGNED_RED_RGTC1_EXT , GL_RED , GL_COMPRESSED_SIGNED_RED_RGTC1_EXT }
// , { GL_COMPRESSED_RG_RGTC2 , GL_RG , GL_COMPRESSED_RG_RGTC2 }
// , { GL_COMPRESSED_SIGNED_RG_RGTC2 , GL_RG , GL_COMPRESSED_SIGNED_RG_RGTC2 }
// , { GL_COMPRESSED_RGBA_BPTC_UNORM , GL_RGBA , GL_COMPRESSED_RGBA_BPTC_UNORM }
// , { GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM , GL_RGBA , GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM }
// , { GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT , GL_RGB , GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT }
// , { GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT , GL_RGB , GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT }
, { GL_COMPRESSED_RGB_S3TC_DXT1_EXT , GL_RGB , GL_COMPRESSED_RGB_S3TC_DXT1_EXT }
, { GL_COMPRESSED_RGBA_S3TC_DXT1_EXT , GL_RGBA , GL_COMPRESSED_RGBA_S3TC_DXT1_EXT }
, { GL_COMPRESSED_RGBA_S3TC_DXT3_EXT , GL_RGBA , GL_COMPRESSED_RGBA_S3TC_DXT3_EXT }
, { GL_COMPRESSED_RGBA_S3TC_DXT5_EXT , GL_RGBA , GL_COMPRESSED_RGBA_S3TC_DXT5_EXT }
// , { GL_COMPRESSED_SRGB_S3TC_DXT1_EXT , GL_RGB , GL_COMPRESSED_SRGB_S3TC_DXT1_EXT }
// , { GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT , GL_RGBA , GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT }
// , { GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT , GL_RGBA , GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT }
// , { GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT , GL_RGBA , GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT }
};
bool isSizedInternalFormat(GLint internalFormat)
{
const size_t formatsCount = sizeof(sizedInternalFormats) / sizeof(sizedInternalFormats[0]);
size_t i = 0;
while(i < formatsCount)
{
if((GLenum)internalFormat == sizedInternalFormats[i].sizedInternalFormat)
return true;
++i;
}
return false;
}
GLenum assumeSizedInternalFormat(GLint internalFormat, GLenum type)
{
const size_t formatsCount = sizeof(sizedInternalFormats) / sizeof(sizedInternalFormats[0]);
for(size_t i = formatsCount; i --> 0;)
{
if(internalFormat == sizedInternalFormats[i].internalFormat && type == sizedInternalFormats[i].type)
return sizedInternalFormats[i].sizedInternalFormat;
}
return 0;
}
bool isCompressedInternalFormatSupportedByTexStorrage(GLint internalFormat)
{
const size_t formatsCount = sizeof(compressedInternalFormats) / sizeof(compressedInternalFormats[0]);
size_t i = 0;
while(i < formatsCount)
{
if((GLenum)internalFormat == compressedInternalFormats[i].sizedInternalFormat)
return true;
++i;
}
return false;
}
Texture::TextureObject::~TextureObject()
{
// OSG_NOTICE<<"Texture::TextureObject::~TextureObject() "<<this<<std::endl;
}
void Texture::TextureObject::bind()
{
glBindTexture( _profile._target, _id);
if (_set) _set->moveToBack(this);
}
void Texture::TextureObject::setAllocated(GLint numMipmapLevels,
GLenum internalFormat,
GLsizei width,
GLsizei height,
GLsizei depth,
GLint border)
{
_allocated=true;
if (!match(_profile._target,numMipmapLevels,internalFormat,width,height,depth,border))
{
// keep previous size
unsigned int previousSize = _profile._size;
_profile.set(numMipmapLevels,internalFormat,width,height,depth,border);
if (_set)
{
_set->moveToSet(this, _set->getParent()->getTextureObjectSet(_profile));
// Update texture pool size
_set->getParent()->getCurrTexturePoolSize() -= previousSize;
_set->getParent()->getCurrTexturePoolSize() += _profile._size;
}
}
}
void Texture::TextureProfile::computeSize()
{
unsigned int numBitsPerTexel = 32;
switch(_internalFormat)
{
case(1): numBitsPerTexel = 8; break;
case(GL_ALPHA): numBitsPerTexel = 8; break;
case(GL_LUMINANCE): numBitsPerTexel = 8; break;
case(GL_INTENSITY): numBitsPerTexel = 8; break;
case(GL_LUMINANCE_ALPHA): numBitsPerTexel = 16; break;
case(2): numBitsPerTexel = 16; break;
case(GL_RGB): numBitsPerTexel = 24; break;
case(GL_BGR): numBitsPerTexel = 24; break;
case(3): numBitsPerTexel = 24; break;
case(GL_RGBA): numBitsPerTexel = 32; break;
case(4): numBitsPerTexel = 32; break;
case(GL_COMPRESSED_ALPHA_ARB): numBitsPerTexel = 4; break;
case(GL_COMPRESSED_INTENSITY_ARB): numBitsPerTexel = 4; break;
case(GL_COMPRESSED_LUMINANCE_ALPHA_ARB): numBitsPerTexel = 4; break;
case(GL_COMPRESSED_RGB_S3TC_DXT1_EXT): numBitsPerTexel = 4; break;
case(GL_COMPRESSED_RGBA_S3TC_DXT1_EXT): numBitsPerTexel = 4; break;
case(GL_COMPRESSED_RGB_ARB): numBitsPerTexel = 8; break;
case(GL_COMPRESSED_RGBA_S3TC_DXT3_EXT): numBitsPerTexel = 8; break;
case(GL_COMPRESSED_RGBA_S3TC_DXT5_EXT): numBitsPerTexel = 8; break;
case(GL_COMPRESSED_SIGNED_RED_RGTC1_EXT): numBitsPerTexel = 4; break;
case(GL_COMPRESSED_RED_RGTC1_EXT): numBitsPerTexel = 4; break;
case(GL_COMPRESSED_SIGNED_RED_GREEN_RGTC2_EXT): numBitsPerTexel = 8; break;
case(GL_COMPRESSED_RED_GREEN_RGTC2_EXT): numBitsPerTexel = 8; break;
case(GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG): numBitsPerTexel = 2; break;
case(GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG): numBitsPerTexel = 2; break;
case(GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG): numBitsPerTexel = 4; break;
case(GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG): numBitsPerTexel = 4; break;
case(GL_ETC1_RGB8_OES): numBitsPerTexel = 4; break;
case(GL_COMPRESSED_RGB8_ETC2): numBitsPerTexel = 4; break;
case(GL_COMPRESSED_SRGB8_ETC2): numBitsPerTexel = 4; break;
case(GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2): numBitsPerTexel = 8; break;
case(GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2): numBitsPerTexel = 8; break;
case(GL_COMPRESSED_RGBA8_ETC2_EAC): numBitsPerTexel = 8; break;
case(GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC): numBitsPerTexel = 8; break;
case(GL_COMPRESSED_R11_EAC): numBitsPerTexel = 4; break;
case(GL_COMPRESSED_SIGNED_R11_EAC): numBitsPerTexel = 4; break;
case(GL_COMPRESSED_RG11_EAC): numBitsPerTexel = 8; break;
case(GL_COMPRESSED_SIGNED_RG11_EAC): numBitsPerTexel = 8; break;
}
_size = (unsigned int)(ceil(double(_width * _height * _depth * numBitsPerTexel)/8.0));
if (_numMipmapLevels>1)
{
unsigned int mipmapSize = _size / 4;
for(GLint i=0; i<_numMipmapLevels && mipmapSize!=0; ++i)
{
_size += mipmapSize;
mipmapSize /= 4;
}
}
// OSG_NOTICE<<"TO ("<<_width<<", "<<_height<<", "<<_depth<<") size="<<_size<<" numBitsPerTexel="<<numBitsPerTexel<<std::endl;
}
///////////////////////////////////////////////////////////////////////////////////////////////////////////
//
// New texture object manager
//
Texture::TextureObjectSet::TextureObjectSet(TextureObjectManager* parent, const TextureProfile& profile):
_parent(parent),
_contextID(parent->getContextID()),
_profile(profile),
_numOfTextureObjects(0),
_head(0),
_tail(0)
{
}
Texture::TextureObjectSet::~TextureObjectSet()
{
#if 0
OSG_NOTICE<<"TextureObjectSet::~TextureObjectSet(), _numOfTextureObjects="<<_numOfTextureObjects<<std::endl;
OSG_NOTICE<<" _orphanedTextureObjects = "<<_orphanedTextureObjects.size()<<std::endl;
OSG_NOTICE<<" _head = "<<_head<<std::endl;
OSG_NOTICE<<" _tail = "<<_tail<<std::endl;
#endif
}
bool Texture::TextureObjectSet::checkConsistency() const
{
OSG_NOTICE<<"TextureObjectSet::checkConsistency()"<<std::endl;
// check consistency of linked list.
unsigned int numInList = 0;
Texture::TextureObject* to = _head;
while(to!=0)
{
++numInList;
if (to->_next)
{
if ((to->_next)->_previous != to)
{
OSG_NOTICE<<"Texture::TextureObjectSet::checkConsistency() : Error (to->_next)->_previous != to "<<std::endl;
return false;
}
}
else
{
if (_tail != to)
{
OSG_NOTICE<<"Texture::TextureObjectSet::checkConsistency() : Error _tail != to"<<std::endl;
return false;
}
}
to = to->_next;
}
unsigned int totalNumber = numInList + _orphanedTextureObjects.size();
if (totalNumber != _numOfTextureObjects)
{
OSG_NOTICE<<"Error numInList + _orphanedTextureObjects.size() != _numOfTextureObjects"<<std::endl;
OSG_NOTICE<<" numInList = "<<numInList<<std::endl;
OSG_NOTICE<<" _orphanedTextureObjects.size() = "<<_orphanedTextureObjects.size()<<std::endl;
OSG_NOTICE<<" _pendingOrphanedTextureObjects.size() = "<<_pendingOrphanedTextureObjects.size()<<std::endl;
OSG_NOTICE<<" _numOfTextureObjects = "<<_numOfTextureObjects<<std::endl;
return false;
}
_parent->checkConsistency();
return true;
}
void Texture::TextureObjectSet::handlePendingOrphandedTextureObjects()
{
// OSG_NOTICE<<"handlePendingOrphandedTextureObjects()"<<_pendingOrphanedTextureObjects.size()<<std::endl;
if (_pendingOrphanedTextureObjects.empty()) return;
unsigned int numOrphaned = _pendingOrphanedTextureObjects.size();
for(TextureObjectList::iterator itr = _pendingOrphanedTextureObjects.begin();
itr != _pendingOrphanedTextureObjects.end();
++itr)
{
TextureObject* to = itr->get();
_orphanedTextureObjects.push_back(to);
remove(to);
}
// update the TextureObjectManager's running total of active + orphaned TextureObjects
_parent->getNumberOrphanedTextureObjects() += numOrphaned;
_parent->getNumberActiveTextureObjects() -= numOrphaned;
_pendingOrphanedTextureObjects.clear();
CHECK_CONSISTENCY
}
void Texture::TextureObjectSet::deleteAllTextureObjects()
{
// OSG_NOTICE<<"Texture::TextureObjectSet::deleteAllTextureObjects()"<<std::endl;
{
OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_mutex);
if (!_pendingOrphanedTextureObjects.empty())
{
// OSG_NOTICE<<"Texture::TextureObjectSet::flushDeletedTextureObjects(..) handling orphans"<<std::endl;
handlePendingOrphandedTextureObjects();
}
}
CHECK_CONSISTENCY
// detect all the active texture objects from their Textures
unsigned int numOrphaned = 0;
TextureObject* to = _head;
while(to!=0)
{
ref_ptr<TextureObject> glto = to;
to = to->_next;
_orphanedTextureObjects.push_back(glto.get());
remove(glto.get());
++numOrphaned;
ref_ptr<Texture> original_texture = glto->getTexture();
if (original_texture.valid())
{
original_texture->setTextureObject(_contextID,0);
}
}
_parent->getNumberOrphanedTextureObjects() += numOrphaned;
_parent->getNumberActiveTextureObjects() -= numOrphaned;
// now do the actual delete.
flushAllDeletedTextureObjects();
// OSG_NOTICE<<"done GLBufferObjectSet::deleteAllGLBufferObjects()"<<std::endl;
}
void Texture::TextureObjectSet::discardAllTextureObjects()
{
// OSG_NOTICE<<"Texture::TextureObjectSet::discardAllTextureObjects()."<<std::endl;
TextureObject* to = _head;
while(to!=0)
{
ref_ptr<TextureObject> glto = to;
to = to->_next;
ref_ptr<Texture> original_texture = glto->getTexture();
if (original_texture.valid())
{
original_texture->setTextureObject(_contextID,0);
}
}
// the linked list should now be empty
_head = 0;
_tail = 0;
_pendingOrphanedTextureObjects.clear();
_orphanedTextureObjects.clear();
unsigned int numDeleted = _numOfTextureObjects;
_numOfTextureObjects = 0;
// update the TextureObjectManager's running total of current pool size
_parent->getCurrTexturePoolSize() -= numDeleted*_profile._size;
_parent->getNumberOrphanedTextureObjects() -= numDeleted;
_parent->getNumberDeleted() += numDeleted;
}
void Texture::TextureObjectSet::flushAllDeletedTextureObjects()
{
// OSG_NOTICE<<"Texture::TextureObjectSet::flushAllDeletedTextureObjects()"<<std::endl;
{
OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_mutex);
if (!_pendingOrphanedTextureObjects.empty())
{
// OSG_NOTICE<<"Texture::TextureObjectSet::flushDeletedTextureObjects(..) handling orphans"<<std::endl;
handlePendingOrphandedTextureObjects();
}
}
for(TextureObjectList::iterator itr = _orphanedTextureObjects.begin();
itr != _orphanedTextureObjects.end();
++itr)
{
GLuint id = (*itr)->id();
// OSG_NOTICE<<" Deleting textureobject ptr="<<itr->get()<<" id="<<id<<std::endl;
glDeleteTextures( 1L, &id);
}
unsigned int numDeleted = _orphanedTextureObjects.size();
_numOfTextureObjects -= numDeleted;
// update the TextureObjectManager's running total of current pool size
_parent->getCurrTexturePoolSize() -= numDeleted*_profile._size;
_parent->getNumberOrphanedTextureObjects() -= numDeleted;
_parent->getNumberDeleted() += numDeleted;
_orphanedTextureObjects.clear();
}
void Texture::TextureObjectSet::discardAllDeletedTextureObjects()
{
// OSG_NOTICE<<"Texture::TextureObjectSet::discardAllDeletedTextureObjects()"<<std::endl;
// clean up the pending orphans.
{
OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_mutex);
if (!_pendingOrphanedTextureObjects.empty())
{
// OSG_NOTICE<<"Texture::TextureObjectSet::flushDeletedTextureObjects(..) handling orphans"<<std::endl;
handlePendingOrphandedTextureObjects();
}
}
unsigned int numDiscarded = _orphanedTextureObjects.size();
_numOfTextureObjects -= numDiscarded;
// update the TextureObjectManager's running total of current pool size
_parent->getCurrTexturePoolSize() -= numDiscarded*_profile._size;
// update the number of active and orphaned TextureOjects
_parent->getNumberOrphanedTextureObjects() -= numDiscarded;
_parent->getNumberDeleted() += numDiscarded;
// just clear the list as there is nothing else we can do with them when discarding them
_orphanedTextureObjects.clear();
}
void Texture::TextureObjectSet::flushDeletedTextureObjects(double /*currentTime*/, double& availableTime)
{
// OSG_NOTICE<<"Texture::TextureObjectSet::flushDeletedTextureObjects(..)"<<std::endl;
{
OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_mutex);
if (!_pendingOrphanedTextureObjects.empty())
{
// OSG_NOTICE<<"Texture::TextureObjectSet::flushDeletedTextureObjects(..) handling orphans"<<std::endl;
handlePendingOrphandedTextureObjects();
}
}
if (_profile._size!=0 && _parent->getCurrTexturePoolSize()<=_parent->getMaxTexturePoolSize())
{
// OSG_NOTICE<<"Plenty of space in TextureObject pool"<<std::endl;
return;
}
// if nothing to delete return
if (_orphanedTextureObjects.empty())
{
return;
}
// if no time available don't try to flush objects.
if (availableTime<=0.0) return;
unsigned int numDeleted = 0;
unsigned int sizeRequired = _parent->getCurrTexturePoolSize() - _parent->getMaxTexturePoolSize();
unsigned int maxNumObjectsToDelete = _profile._size!=0 ?
static_cast<unsigned int>(ceil(double(sizeRequired) / double(_profile._size))):
_orphanedTextureObjects.size();
OSG_INFO<<"_parent->getCurrTexturePoolSize()="<<_parent->getCurrTexturePoolSize() <<" _parent->getMaxTexturePoolSize()="<< _parent->getMaxTexturePoolSize()<<std::endl;
OSG_INFO<<"Looking to reclaim "<<sizeRequired<<", going to look to remove "<<maxNumObjectsToDelete<<" from "<<_orphanedTextureObjects.size()<<" orhpans"<<std::endl;
ElapsedTime timer;
TextureObjectList::iterator itr = _orphanedTextureObjects.begin();
for(;
itr != _orphanedTextureObjects.end() && timer.elapsedTime()<availableTime && numDeleted<maxNumObjectsToDelete;
++itr)
{
GLuint id = (*itr)->id();
// OSG_NOTICE<<" Deleting textureobject ptr="<<itr->get()<<" id="<<id<<std::endl;
glDeleteTextures( 1L, &id);
++numDeleted;
}
// OSG_NOTICE<<"Size before = "<<_orphanedTextureObjects.size();
_orphanedTextureObjects.erase(_orphanedTextureObjects.begin(), itr);
// OSG_NOTICE<<", after = "<<_orphanedTextureObjects.size()<<" numDeleted = "<<numDeleted<<std::endl;
// update the number of TO's in this TextureObjectSet
_numOfTextureObjects -= numDeleted;
_parent->getCurrTexturePoolSize() -= numDeleted*_profile._size;
// update the number of active and orphaned TextureOjects
_parent->getNumberOrphanedTextureObjects() -= numDeleted;
_parent->getNumberDeleted() += numDeleted;
availableTime -= timer.elapsedTime();
}
bool Texture::TextureObjectSet::makeSpace(unsigned int& size)
{
{
OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_mutex);
if (!_pendingOrphanedTextureObjects.empty())
{
// OSG_NOTICE<<"Texture::TextureObjectSet::Texture::TextureObjectSet::makeSpace(..) handling orphans"<<std::endl;
handlePendingOrphandedTextureObjects();
}
}
if (!_orphanedTextureObjects.empty())
{
unsigned int sizeAvailable = _orphanedTextureObjects.size() * _profile._size;
if (size>sizeAvailable) size -= sizeAvailable;
else size = 0;
flushAllDeletedTextureObjects();
}
return size==0;
}
Texture::TextureObject* Texture::TextureObjectSet::takeFromOrphans(Texture* texture)
{
// take front of orphaned list.
ref_ptr<TextureObject> to = _orphanedTextureObjects.front();
// remove from orphan list.
_orphanedTextureObjects.pop_front();
// assign to new texture
to->setTexture(texture);
// update the number of active and orphaned TextureOjects
_parent->getNumberOrphanedTextureObjects() -= 1;
_parent->getNumberActiveTextureObjects() += 1;
// place at back of active list
addToBack(to.get());
OSG_INFO<<"Reusing orphaned TextureObject, _numOfTextureObjects="<<_numOfTextureObjects<<std::endl;
return to.release();
}
Texture::TextureObject* Texture::TextureObjectSet::takeOrGenerate(Texture* texture)
{
// see if we can recyle TextureObject from the orphan list
{
OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_mutex);
if (!_pendingOrphanedTextureObjects.empty())
{
handlePendingOrphandedTextureObjects();
return takeFromOrphans(texture);
}
}
if (!_orphanedTextureObjects.empty())
{
return takeFromOrphans(texture);
}
unsigned int minFrameNumber = _parent->getFrameNumber();
// see if we can reuse TextureObject by taking the least recently used active TextureObject
if ((_parent->getMaxTexturePoolSize()!=0) &&
(!_parent->hasSpace(_profile._size)) &&
(_numOfTextureObjects>1) &&
(_head != 0) &&
(_head->_frameLastUsed<minFrameNumber))
{
OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_mutex);
ref_ptr<TextureObject> to = _head;
ref_ptr<Texture> original_texture = to->getTexture();
if (original_texture.valid())
{
original_texture->setTextureObject(_contextID,0);
OSG_INFO<<"TextureObjectSet="<<this<<": Reusing an active TextureObject "<<to.get()<<" _numOfTextureObjects="<<_numOfTextureObjects<<" width="<<_profile._width<<" height="<<_profile._height<<std::endl;
}
else
{
OSG_INFO<<"Reusing a recently orphaned active TextureObject "<<to.get()<<std::endl;
}
moveToBack(to.get());
// assign to new texture
to->setTexture(texture);
return to.release();
}
//
// no TextureObjects available to recycle so have to create one from scratch
//
GLuint id;
glGenTextures( 1L, &id );
TextureObject* to = new Texture::TextureObject(const_cast<Texture*>(texture),id,_profile);
to->_set = this;
++_numOfTextureObjects;
// update the current texture pool size
_parent->getCurrTexturePoolSize() += _profile._size;
_parent->getNumberActiveTextureObjects() += 1;
addToBack(to);
OSG_INFO<<"Created new " << this << " TextureObject, _numOfTextureObjects "<<_numOfTextureObjects<<std::endl;
return to;
}
void Texture::TextureObjectSet::moveToBack(Texture::TextureObject* to)
{
#if 0
OSG_NOTICE<<"TextureObjectSet::moveToBack("<<to<<")"<<std::endl;
OSG_NOTICE<<" before _head = "<<_head<<std::endl;
OSG_NOTICE<<" before _tail = "<<_tail<<std::endl;
OSG_NOTICE<<" before to->_previous = "<<to->_previous<<std::endl;
OSG_NOTICE<<" before to->_next = "<<to->_next<<std::endl;
#endif
to->_frameLastUsed = _parent->getFrameNumber();
// nothing to do if we are already tail
if (to==_tail) return;
// if no tail exists then assign 'to' as tail and head
if (_tail==0)
{
OSG_NOTICE<<"Error ***************** Should not get here !!!!!!!!!"<<std::endl;
_head = to;
_tail = to;
return;
}
if (to->_next==0)
{
OSG_NOTICE<<"Error ***************** Should not get here either !!!!!!!!!"<<std::endl;
return;
}
if (to->_previous)
{
(to->_previous)->_next = to->_next;
}
else
{
// 'to' is the head, so moving it to the back will mean we need a new head
if (to->_next)
{
_head = to->_next;
}
}
(to->_next)->_previous = to->_previous;
_tail->_next = to;
to->_previous = _tail;
to->_next = 0;
_tail = to;
#if 0
OSG_NOTICE<<" m2B after _head = "<<_head<<std::endl;
OSG_NOTICE<<" m2B after _tail = "<<_tail<<std::endl;
OSG_NOTICE<<" m2B after to->_previous = "<<to->_previous<<std::endl;
OSG_NOTICE<<" m2B after to->_next = "<<to->_next<<std::endl;
#endif
CHECK_CONSISTENCY
}
void Texture::TextureObjectSet::addToBack(Texture::TextureObject* to)
{
#if 0
OSG_NOTICE<<"TextureObjectSet::addToBack("<<to<<")"<<std::endl;
OSG_NOTICE<<" before _head = "<<_head<<std::endl;
OSG_NOTICE<<" before _tail = "<<_tail<<std::endl;
OSG_NOTICE<<" before to->_previous = "<<to->_previous<<std::endl;
OSG_NOTICE<<" before to->_next = "<<to->_next<<std::endl;
#endif
if (to->_previous !=0 || to->_next !=0)
{
moveToBack(to);
}
else
{
to->_frameLastUsed = _parent->getFrameNumber();
if (_tail) _tail->_next = to;
to->_previous = _tail;
if (!_head) _head = to;
_tail = to;
}
#if 0
OSG_NOTICE<<" a2B after _head = "<<_head<<std::endl;
OSG_NOTICE<<" a2B after _tail = "<<_tail<<std::endl;
OSG_NOTICE<<" a2B after to->_previous = "<<to->_previous<<std::endl;
OSG_NOTICE<<" a2B after to->_next = "<<to->_next<<std::endl;
#endif
CHECK_CONSISTENCY
}
void Texture::TextureObjectSet::orphan(Texture::TextureObject* to)
{
// OSG_NOTICE<<"TextureObjectSet::orphan("<<to<<")"<<std::endl;
OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_mutex);
// disconnect from original texture
to->setTexture(0);
// add orphan 'to' to the pending list of orphans, these will then be
// handled in the handlePendingOrphandedTextureObjects() where the TO's
// will be removed from the active list, and then placed in the orhpanTextureObject
// list. This double buffered approach to handling orphaned TO's is used
// to avoid having to mutex the process of appling active TO's.
_pendingOrphanedTextureObjects.push_back(to);
#if 0
OSG_NOTICE<<"TextureObjectSet::orphan("<<to<<") _pendingOrphanedTextureObjects.size()="<<_pendingOrphanedTextureObjects.size()<<std::endl;
OSG_NOTICE<<" _orphanedTextureObjects.size()="<<_orphanedTextureObjects.size()<<std::endl;
#endif
}
void Texture::TextureObjectSet::remove(Texture::TextureObject* to)
{
if (to->_previous!=0)
{
(to->_previous)->_next = to->_next;
}
else
{
// 'to' was head so assign _head to the next in list
_head = to->_next;
}
if (to->_next!=0)
{
(to->_next)->_previous = to->_previous;
}
else
{
// 'to' was tail so assing tail to the previous in list
_tail = to->_previous;
}
// reset the 'to' list pointers as it's no longer in the active list.
to->_next = 0;
to->_previous = 0;
}
void Texture::TextureObjectSet::moveToSet(TextureObject* to, TextureObjectSet* set)
{
if (set==this) return;
if (!set) return;
// remove 'to' from original set
--_numOfTextureObjects;
remove(to);
// register 'to' with new set.
to->_set = set;
++set->_numOfTextureObjects;
set->addToBack(to);
}
unsigned int Texture::TextureObjectSet::computeNumTextureObjectsInList() const
{
unsigned int num=0;
TextureObject* obj = _head;
while(obj!=NULL)
{
++num;
obj = obj->_next;
}
return num;
}
Texture::TextureObjectManager::TextureObjectManager(unsigned int contextID):
_contextID(contextID),
_numActiveTextureObjects(0),
_numOrphanedTextureObjects(0),
_currTexturePoolSize(0),
_maxTexturePoolSize(0),
_frameNumber(0),
_numFrames(0),
_numDeleted(0),
_deleteTime(0.0),
_numGenerated(0),
_generateTime(0.0),
_numApplied(0),
_applyTime(0.0)
{
}
void Texture::TextureObjectManager::setMaxTexturePoolSize(unsigned int size)
{
if (_maxTexturePoolSize == size) return;
if (size<_currTexturePoolSize)
{
OSG_NOTICE<<"Warning: new MaxTexturePoolSize="<<size<<" is smaller than current TexturePoolSize="<<_currTexturePoolSize<<std::endl;
}
_maxTexturePoolSize = size;
}
bool Texture::TextureObjectManager::makeSpace(unsigned int size)
{
for(TextureSetMap::iterator itr = _textureSetMap.begin();
itr != _textureSetMap.end() && size>0;
++itr)
{
if ((*itr).second->makeSpace(size)) return true;
}
return size==0;
}
Texture::TextureObject* Texture::TextureObjectManager::generateTextureObject(const Texture* texture, GLenum target)
{
return generateTextureObject(texture, target, 0, 0, 0, 0, 0, 0);
}
Texture::TextureObject* Texture::TextureObjectManager::generateTextureObject(const Texture* texture,
GLenum target,
GLint numMipmapLevels,
GLenum internalFormat,
GLsizei width,
GLsizei height,
GLsizei depth,
GLint border)
{
ElapsedTime elapsedTime(&(getGenerateTime()));
++getNumberGenerated();
Texture::TextureProfile profile(target,numMipmapLevels,internalFormat,width,height,depth,border);
TextureObjectSet* tos = getTextureObjectSet(profile);
return tos->takeOrGenerate(const_cast<Texture*>(texture));
}
Texture::TextureObjectSet* Texture::TextureObjectManager::getTextureObjectSet(const TextureProfile& profile)
{
osg::ref_ptr<Texture::TextureObjectSet>& tos = _textureSetMap[profile];
if (!tos) tos = new Texture::TextureObjectSet(this, profile);
return tos.get();
}
void Texture::TextureObjectManager::handlePendingOrphandedTextureObjects()
{
for(TextureSetMap::iterator itr = _textureSetMap.begin();
itr != _textureSetMap.end();
++itr)
{
(*itr).second->handlePendingOrphandedTextureObjects();
}
}
void Texture::TextureObjectManager::deleteAllTextureObjects()
{
// OSG_NOTICE<<"Texture::TextureObjectManager::deleteAllTextureObjects() _contextID="<<_contextID<<std::endl;
ElapsedTime elapsedTime(&(getDeleteTime()));
for(TextureSetMap::iterator itr = _textureSetMap.begin();
itr != _textureSetMap.end();
++itr)
{
(*itr).second->deleteAllTextureObjects();
}
}
void Texture::TextureObjectManager::discardAllTextureObjects()
{
// OSG_NOTICE<<"Texture::TextureObjectManager::discardAllTextureObjects() _contextID="<<_contextID<<" _numActiveTextureObjects="<<_numActiveTextureObjects<<std::endl;
for(TextureSetMap::iterator itr = _textureSetMap.begin();
itr != _textureSetMap.end();
++itr)
{
(*itr).second->discardAllTextureObjects();
}
}
void Texture::TextureObjectManager::flushAllDeletedTextureObjects()
{
// OSG_NOTICE<<"Texture::TextureObjectManager::flushAllDeletedTextureObjects() _contextID="<<_contextID<<std::endl;
ElapsedTime elapsedTime(&(getDeleteTime()));
for(TextureSetMap::iterator itr = _textureSetMap.begin();
itr != _textureSetMap.end();
++itr)
{
(*itr).second->flushAllDeletedTextureObjects();
}
}
void Texture::TextureObjectManager::discardAllDeletedTextureObjects()
{
// OSG_NOTICE<<"Texture::TextureObjectManager::discardAllDeletedTextureObjects() _contextID="<<_contextID<<" _numActiveTextureObjects="<<_numActiveTextureObjects<<std::endl;
for(TextureSetMap::iterator itr = _textureSetMap.begin();
itr != _textureSetMap.end();
++itr)
{
(*itr).second->discardAllDeletedTextureObjects();
}
}
void Texture::TextureObjectManager::flushDeletedTextureObjects(double currentTime, double& availableTime)
{
ElapsedTime elapsedTime(&(getDeleteTime()));
for(TextureSetMap::iterator itr = _textureSetMap.begin();
(itr != _textureSetMap.end()) && (availableTime > 0.0);
++itr)
{
(*itr).second->flushDeletedTextureObjects(currentTime, availableTime);
}
}
void Texture::TextureObjectManager::releaseTextureObject(Texture::TextureObject* to)
{
if (to->_set) to->_set->orphan(to);
else OSG_NOTICE<<"TextureObjectManager::releaseTextureObject(Texture::TextureObject* to) Not implemented yet"<<std::endl;
}
void Texture::TextureObjectManager::newFrame(osg::FrameStamp* fs)
{
if (fs) _frameNumber = fs->getFrameNumber();
else ++_frameNumber;
++_numFrames;
}
void Texture::TextureObjectManager::reportStats(std::ostream& out)
{
double numFrames(_numFrames==0 ? 1.0 : _numFrames);
out<<"TextureObjectMananger::reportStats()"<<std::endl;
out<<" total _numOfTextureObjects="<<_numActiveTextureObjects<<", _numOrphanedTextureObjects="<<_numOrphanedTextureObjects<<" _currTexturePoolSize="<<_currTexturePoolSize<<std::endl;
out<<" total _numGenerated="<<_numGenerated<<", _generateTime="<<_generateTime<<", averagePerFrame="<<_generateTime/numFrames*1000.0<<"ms"<<std::endl;
out<<" total _numDeleted="<<_numDeleted<<", _deleteTime="<<_deleteTime<<", averagePerFrame="<<_deleteTime/numFrames*1000.0<<"ms"<<std::endl;
out<<" total _numApplied="<<_numApplied<<", _applyTime="<<_applyTime<<", averagePerFrame="<<_applyTime/numFrames*1000.0<<"ms"<<std::endl;
out<<" getMaxTexturePoolSize()="<<getMaxTexturePoolSize()<<" current/max size = "<<double(_currTexturePoolSize)/double(getMaxTexturePoolSize())<<std::endl;
recomputeStats(out);
}
void Texture::TextureObjectManager::resetStats()
{
_numFrames = 0;
_numDeleted = 0;
_deleteTime = 0;
_numGenerated = 0;
_generateTime = 0;
_numApplied = 0;
_applyTime = 0;
}
void Texture::TextureObjectManager::recomputeStats(std::ostream& out) const
{
out<<"Texture::TextureObjectManager::recomputeStats()"<<std::endl;
unsigned int numObjectsInLists = 0;
unsigned int numActive = 0;
unsigned int numOrphans = 0;
unsigned int numPendingOrphans = 0;
unsigned int currentSize = 0;
for(TextureSetMap::const_iterator itr = _textureSetMap.begin();
itr != _textureSetMap.end();
++itr)
{
const TextureObjectSet* os = itr->second.get();
numObjectsInLists += os->computeNumTextureObjectsInList();
numActive += os->getNumOfTextureObjects();
numOrphans += os->getNumOrphans();
numPendingOrphans += os->getNumPendingOrphans();
currentSize += os->getProfile()._size * (os->computeNumTextureObjectsInList()+os->getNumOrphans());
out<<" size="<<os->getProfile()._size
<<", os->computeNumTextureObjectsInList()"<<os->computeNumTextureObjectsInList()
<<", os->getNumOfTextureObjects()"<<os->getNumOfTextureObjects()
<<", os->getNumOrphans()"<<os->getNumOrphans()
<<", os->getNumPendingOrphans()"<<os->getNumPendingOrphans()
<<std::endl;
}
out<<" numObjectsInLists="<<numObjectsInLists<<", numActive="<<numActive<<", numOrphans="<<numOrphans<<" currentSize="<<currentSize<<std::endl;
out<<" getMaxTexturePoolSize()="<<getMaxTexturePoolSize()<<" current/max size = "<<double(currentSize)/double(getMaxTexturePoolSize())<<std::endl;
if (currentSize != _currTexturePoolSize) out<<" WARNING: _currTexturePoolSize("<<_currTexturePoolSize<<") != currentSize, delta = "<<int(_currTexturePoolSize)-int(currentSize)<<std::endl;
}
bool Texture::TextureObjectManager::checkConsistency() const
{
unsigned int numObjectsInLists = 0;
unsigned int numActive = 0;
unsigned int numOrphans = 0;
unsigned int numPendingOrphans = 0;
unsigned int currentSize = 0;
for(TextureSetMap::const_iterator itr = _textureSetMap.begin();
itr != _textureSetMap.end();
++itr)
{
const TextureObjectSet* os = itr->second.get();
numObjectsInLists += os->computeNumTextureObjectsInList();
numActive += os->getNumOfTextureObjects();
numOrphans += os->getNumOrphans();
numPendingOrphans += os->getNumPendingOrphans();
currentSize += os->getProfile()._size * (os->computeNumTextureObjectsInList()+os->getNumOrphans());
}
if (currentSize != _currTexturePoolSize)
{
recomputeStats(osg::notify(osg::NOTICE));
throw "Texture::TextureObjectManager::checkConsistency() sizes inconsistent";
return false;
}
return true;
}
osg::ref_ptr<Texture::TextureObjectManager>& Texture::getTextureObjectManager(unsigned int contextID)
{
typedef osg::buffered_object< ref_ptr<Texture::TextureObjectManager> > TextureObjectManagerBuffer;
static TextureObjectManagerBuffer s_TextureObjectManager;
if (!s_TextureObjectManager[contextID]) s_TextureObjectManager[contextID] = new Texture::TextureObjectManager(contextID);
return s_TextureObjectManager[contextID];
}
Texture::TextureObject* Texture::generateTextureObject(const Texture* texture, unsigned int contextID, GLenum target)
{
return getTextureObjectManager(contextID)->generateTextureObject(texture, target);
}
Texture::TextureObject* Texture::generateTextureObject(const Texture* texture, unsigned int contextID,
GLenum target,
GLint numMipmapLevels,
GLenum internalFormat,
GLsizei width,
GLsizei height,
GLsizei depth,
GLint border)
{
return getTextureObjectManager(contextID)->generateTextureObject(texture,target,numMipmapLevels,internalFormat,width,height,depth,border);
}
void Texture::deleteAllTextureObjects(unsigned int contextID)
{
getTextureObjectManager(contextID)->deleteAllTextureObjects();
}
void Texture::discardAllTextureObjects(unsigned int contextID)
{
getTextureObjectManager(contextID)->discardAllTextureObjects();
}
void Texture::flushAllDeletedTextureObjects(unsigned int contextID)
{
getTextureObjectManager(contextID)->flushAllDeletedTextureObjects();
}
void Texture::discardAllDeletedTextureObjects(unsigned int contextID)
{
getTextureObjectManager(contextID)->discardAllDeletedTextureObjects();
}
void Texture::flushDeletedTextureObjects(unsigned int contextID,double currentTime, double& availbleTime)
{
getTextureObjectManager(contextID)->flushDeletedTextureObjects(currentTime, availbleTime);
}
void Texture::releaseTextureObject(unsigned int contextID, Texture::TextureObject* to)
{
getTextureObjectManager(contextID)->releaseTextureObject(to);
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////
//
// Texture class implementation
//
Texture::Texture():
_wrap_s(CLAMP),
_wrap_t(CLAMP),
_wrap_r(CLAMP),
_min_filter(LINEAR_MIPMAP_LINEAR), // trilinear
_mag_filter(LINEAR),
_maxAnisotropy(1.0f),
_swizzle(GL_RED, GL_GREEN, GL_BLUE, GL_ALPHA),
_useHardwareMipMapGeneration(true),
_unrefImageDataAfterApply(false),
_clientStorageHint(false),
_resizeNonPowerOfTwoHint(true),
_borderColor(0.0, 0.0, 0.0, 0.0),
_borderWidth(0),
_internalFormatMode(USE_IMAGE_DATA_FORMAT),
_internalFormatType(NORMALIZED),
_internalFormat(0),
_sourceFormat(0),
_sourceType(0),
_use_shadow_comparison(false),
_shadow_compare_func(LEQUAL),
_shadow_texture_mode(LUMINANCE),
_shadow_ambient(0)
{
}
Texture::Texture(const Texture& text,const CopyOp& copyop):
StateAttribute(text,copyop),
_wrap_s(text._wrap_s),
_wrap_t(text._wrap_t),
_wrap_r(text._wrap_r),
_min_filter(text._min_filter),
_mag_filter(text._mag_filter),
_maxAnisotropy(text._maxAnisotropy),
_swizzle(text._swizzle),
_useHardwareMipMapGeneration(text._useHardwareMipMapGeneration),
_unrefImageDataAfterApply(text._unrefImageDataAfterApply),
_clientStorageHint(text._clientStorageHint),
_resizeNonPowerOfTwoHint(text._resizeNonPowerOfTwoHint),
_borderColor(text._borderColor),
_borderWidth(text._borderWidth),
_internalFormatMode(text._internalFormatMode),
_internalFormatType(text._internalFormatType),
_internalFormat(text._internalFormat),
_sourceFormat(text._sourceFormat),
_sourceType(text._sourceType),
_use_shadow_comparison(text._use_shadow_comparison),
_shadow_compare_func(text._shadow_compare_func),
_shadow_texture_mode(text._shadow_texture_mode),
_shadow_ambient(text._shadow_ambient)
{
}
Texture::~Texture()
{
// delete old texture objects.
dirtyTextureObject();
}
int Texture::compareTexture(const Texture& rhs) const
{
COMPARE_StateAttribute_Parameter(_wrap_s)
COMPARE_StateAttribute_Parameter(_wrap_t)
COMPARE_StateAttribute_Parameter(_wrap_r)
COMPARE_StateAttribute_Parameter(_min_filter)
COMPARE_StateAttribute_Parameter(_mag_filter)
COMPARE_StateAttribute_Parameter(_maxAnisotropy)
COMPARE_StateAttribute_Parameter(_swizzle)
COMPARE_StateAttribute_Parameter(_useHardwareMipMapGeneration)
COMPARE_StateAttribute_Parameter(_internalFormatMode)
// only compare _internalFomat is it has alrady been set in both lhs, and rhs
if (_internalFormat!=0 && rhs._internalFormat!=0)
{
COMPARE_StateAttribute_Parameter(_internalFormat)
}
COMPARE_StateAttribute_Parameter(_sourceFormat)
COMPARE_StateAttribute_Parameter(_sourceType)
COMPARE_StateAttribute_Parameter(_use_shadow_comparison)
COMPARE_StateAttribute_Parameter(_shadow_compare_func)
COMPARE_StateAttribute_Parameter(_shadow_texture_mode)
COMPARE_StateAttribute_Parameter(_shadow_ambient)
COMPARE_StateAttribute_Parameter(_unrefImageDataAfterApply)
COMPARE_StateAttribute_Parameter(_clientStorageHint)
COMPARE_StateAttribute_Parameter(_resizeNonPowerOfTwoHint)
COMPARE_StateAttribute_Parameter(_internalFormatType);
return 0;
}
int Texture::compareTextureObjects(const Texture& rhs) const
{
if (_textureObjectBuffer.size()<rhs._textureObjectBuffer.size()) return -1;
if (rhs._textureObjectBuffer.size()<_textureObjectBuffer.size()) return 1;
for(unsigned int i=0; i<_textureObjectBuffer.size(); ++i)
{
if (_textureObjectBuffer[i] < rhs._textureObjectBuffer[i]) return -1;
else if (rhs._textureObjectBuffer[i] < _textureObjectBuffer[i]) return 1;
}
return 0;
}
void Texture::setWrap(WrapParameter which, WrapMode wrap)
{
switch( which )
{
case WRAP_S : _wrap_s = wrap; dirtyTextureParameters(); break;
case WRAP_T : _wrap_t = wrap; dirtyTextureParameters(); break;
case WRAP_R : _wrap_r = wrap; dirtyTextureParameters(); break;
default : OSG_WARN<<"Error: invalid 'which' passed Texture::setWrap("<<(unsigned int)which<<","<<(unsigned int)wrap<<")"<<std::endl; break;
}
}
Texture::WrapMode Texture::getWrap(WrapParameter which) const
{
switch( which )
{
case WRAP_S : return _wrap_s;
case WRAP_T : return _wrap_t;
case WRAP_R : return _wrap_r;
default : OSG_WARN<<"Error: invalid 'which' passed Texture::getWrap(which)"<<std::endl; return _wrap_s;
}
}
void Texture::setFilter(FilterParameter which, FilterMode filter)
{
switch( which )
{
case MIN_FILTER : _min_filter = filter; dirtyTextureParameters(); break;
case MAG_FILTER : _mag_filter = filter; dirtyTextureParameters(); break;
default : OSG_WARN<<"Error: invalid 'which' passed Texture::setFilter("<<(unsigned int)which<<","<<(unsigned int)filter<<")"<<std::endl; break;
}
}
Texture::FilterMode Texture::getFilter(FilterParameter which) const
{
switch( which )
{
case MIN_FILTER : return _min_filter;
case MAG_FILTER : return _mag_filter;
default : OSG_WARN<<"Error: invalid 'which' passed Texture::getFilter(which)"<< std::endl; return _min_filter;
}
}
void Texture::setMaxAnisotropy(float anis)
{
if (_maxAnisotropy!=anis)
{
_maxAnisotropy = anis;
dirtyTextureParameters();
}
}
void Texture::bindToImageUnit(unsigned int unit, GLenum access, GLenum format, int level, bool layered, int layer)
{
_imageAttachment.unit = unit;
_imageAttachment.level = level;
_imageAttachment.layered = layered ? GL_TRUE : GL_FALSE;
_imageAttachment.layer = layer;
_imageAttachment.access = access;
_imageAttachment.format = format;
dirtyTextureParameters();
}
/** Force a recompile on next apply() of associated OpenGL texture objects.*/
void Texture::dirtyTextureObject()
{
for(unsigned int i=0; i<_textureObjectBuffer.size();++i)
{
if (_textureObjectBuffer[i].valid())
{
Texture::releaseTextureObject(i, _textureObjectBuffer[i].get());
_textureObjectBuffer[i] = 0;
}
}
}
void Texture::dirtyTextureParameters()
{
_texParametersDirtyList.setAllElementsTo(1);
}
void Texture::allocateMipmapLevels()
{
_texMipmapGenerationDirtyList.setAllElementsTo(1);
}
void Texture::computeInternalFormatWithImage(const osg::Image& image) const
{
GLint internalFormat = image.getInternalTextureFormat();
if (_internalFormatMode==USE_IMAGE_DATA_FORMAT)
{
internalFormat = image.getInternalTextureFormat();
}
else if (_internalFormatMode==USE_USER_DEFINED_FORMAT)
{
internalFormat = _internalFormat;
}
else
{
const unsigned int contextID = 0; // state.getContextID(); // set to 0 right now, assume same parameters for each graphics context...
const Extensions* extensions = getExtensions(contextID,true);
switch(_internalFormatMode)
{
case(USE_ARB_COMPRESSION):
if (extensions->isTextureCompressionARBSupported())
{
switch(image.getPixelFormat())
{
case(1): internalFormat = GL_COMPRESSED_ALPHA_ARB; break;
case(2): internalFormat = GL_COMPRESSED_LUMINANCE_ALPHA_ARB; break;
case(3): internalFormat = GL_COMPRESSED_RGB_ARB; break;
case(4): internalFormat = GL_COMPRESSED_RGBA_ARB; break;
case(GL_RGB): internalFormat = GL_COMPRESSED_RGB_ARB; break;
case(GL_RGBA): internalFormat = GL_COMPRESSED_RGBA_ARB; break;
case(GL_ALPHA): internalFormat = GL_COMPRESSED_ALPHA_ARB; break;
case(GL_LUMINANCE): internalFormat = GL_COMPRESSED_LUMINANCE_ARB; break;
case(GL_LUMINANCE_ALPHA): internalFormat = GL_COMPRESSED_LUMINANCE_ALPHA_ARB; break;
case(GL_INTENSITY): internalFormat = GL_COMPRESSED_INTENSITY_ARB; break;
}
}
break;
case(USE_S3TC_DXT1_COMPRESSION):
if (extensions->isTextureCompressionS3TCSupported())
{
switch(image.getPixelFormat())
{
case(3): internalFormat = GL_COMPRESSED_RGB_S3TC_DXT1_EXT; break;
case(4): internalFormat = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT; break;
case(GL_RGB): internalFormat = GL_COMPRESSED_RGB_S3TC_DXT1_EXT; break;
case(GL_RGBA): internalFormat = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT; break;
default: internalFormat = image.getInternalTextureFormat(); break;
}
}
break;
case(USE_S3TC_DXT1c_COMPRESSION):
if (extensions->isTextureCompressionS3TCSupported())
{
switch(image.getPixelFormat())
{
case(3):
case(4):
case(GL_RGB):
case(GL_RGBA): internalFormat = GL_COMPRESSED_RGB_S3TC_DXT1_EXT; break;
default: internalFormat = image.getInternalTextureFormat(); break;
}
}
break;
case(USE_S3TC_DXT1a_COMPRESSION):
if (extensions->isTextureCompressionS3TCSupported())
{
switch(image.getPixelFormat())
{
case(3):
case(4):
case(GL_RGB):
case(GL_RGBA): internalFormat = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT; break;
default: internalFormat = image.getInternalTextureFormat(); break;
}
}
break;
case(USE_S3TC_DXT3_COMPRESSION):
if (extensions->isTextureCompressionS3TCSupported())
{
switch(image.getPixelFormat())
{
case(3):
case(GL_RGB): internalFormat = GL_COMPRESSED_RGB_S3TC_DXT1_EXT; break;
case(4):
case(GL_RGBA): internalFormat = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT; break;
default: internalFormat = image.getInternalTextureFormat(); break;
}
}
break;
case(USE_S3TC_DXT5_COMPRESSION):
if (extensions->isTextureCompressionS3TCSupported())
{
switch(image.getPixelFormat())
{
case(3):
case(GL_RGB): internalFormat = GL_COMPRESSED_RGB_S3TC_DXT1_EXT; break;
case(4):
case(GL_RGBA): internalFormat = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT; break;
default: internalFormat = image.getInternalTextureFormat(); break;
}
}
break;
case(USE_PVRTC_2BPP_COMPRESSION):
if (extensions->isTextureCompressionPVRTC2BPPSupported())
{
switch(image.getPixelFormat())
{
case(3):
case(GL_RGB): internalFormat = GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG; break;
case(4):
case(GL_RGBA): internalFormat = GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG; break;
default: internalFormat = image.getInternalTextureFormat(); break;
}
}
break;
case(USE_PVRTC_4BPP_COMPRESSION):
if (extensions->isTextureCompressionPVRTC4BPPSupported())
{
switch(image.getPixelFormat())
{
case(3):
case(GL_RGB): internalFormat = GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG; break;
case(4):
case(GL_RGBA): internalFormat = GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG; break;
default: internalFormat = image.getInternalTextureFormat(); break;
}
}
break;
case(USE_ETC_COMPRESSION):
if (extensions->isTextureCompressionETCSupported())
{
switch(image.getPixelFormat())
{
case(3):
case(GL_RGB): internalFormat = GL_ETC1_RGB8_OES; break;
default: internalFormat = image.getInternalTextureFormat(); break;
}
}
break;
case(USE_ETC2_COMPRESSION):
if (extensions->isTextureCompressionETC2Supported())
{
switch(image.getPixelFormat())
{
case(1):
case(GL_RED): internalFormat = GL_COMPRESSED_R11_EAC; break;
case(2):
case(GL_RG): internalFormat = GL_COMPRESSED_RG11_EAC; break;
case(3):
case(GL_RGB): internalFormat = GL_COMPRESSED_RGB8_ETC2; break;
case(4):
case(GL_RGBA): internalFormat = GL_COMPRESSED_RGBA8_ETC2_EAC; break;
default: internalFormat = image.getInternalTextureFormat(); break;
}
}
break;
case(USE_RGTC1_COMPRESSION):
if (extensions->isTextureCompressionRGTCSupported())
{
switch(image.getPixelFormat())
{
case(3):
case(GL_RGB): internalFormat = GL_COMPRESSED_RED_RGTC1_EXT; break;
case(4):
case(GL_RGBA): internalFormat = GL_COMPRESSED_RED_RGTC1_EXT; break;
default: internalFormat = image.getInternalTextureFormat(); break;
}
}
break;
case(USE_RGTC2_COMPRESSION):
if (extensions->isTextureCompressionRGTCSupported())
{
switch(image.getPixelFormat())
{
case(3):
case(GL_RGB): internalFormat = GL_COMPRESSED_RED_GREEN_RGTC2_EXT; break;
case(4):
case(GL_RGBA): internalFormat = GL_COMPRESSED_RED_GREEN_RGTC2_EXT; break;
default: internalFormat = image.getInternalTextureFormat(); break;
}
}
break;
default:
break;
}
}
#if defined (OSG_GLES1_AVAILABLE) || defined (OSG_GLES2_AVAILABLE)
// GLES doesn't cope with internal formats of 1,2,3 and 4 and glTexImage doesn't
// handle the _OES pixel formats so map them to the appropriate equivilants.
switch(internalFormat)
{
case(1) : internalFormat = GL_LUMINANCE; break;
case(2) : internalFormat = GL_LUMINANCE_ALPHA; break;
case(3) : internalFormat = GL_RGB; break;
case(4) : internalFormat = GL_RGBA; break;
case(GL_RGB8_OES) : internalFormat = GL_RGB; break;
case(GL_RGBA8_OES) : internalFormat = GL_RGBA; break;
default: break;
}
#elif defined(OSG_GL3_AVAILABLE)
switch(internalFormat)
{
case(GL_INTENSITY) : internalFormat = GL_RED; break; // should it be swizzled to match RGBA(INTENSITY, INTENSITY, INTENSITY, INTENSITY)?
case(GL_LUMINANCE) : internalFormat = GL_RED; break; // should it be swizzled to match RGBA(LUMINANCE, LUMINANCE, LUMINANCE, 1.0)?
case(1) : internalFormat = GL_RED; break; // or sould this be GL_ALPHA?
case(2) : internalFormat = GL_RG; break; // should we assume GL_LUMINANCE_ALPHA?
case(GL_LUMINANCE_ALPHA) : internalFormat = GL_RG; break; // should it be swizlled to match RGAB(LUMUNIANCE, LUMINANCE, LUMINANCE, ALPHA)?
case(3) : internalFormat = GL_RGB; break;
case(4) : internalFormat = GL_RGBA; break;
default: break;
}
#endif
_internalFormat = internalFormat;
computeInternalFormatType();
//OSG_NOTICE<<"Internal format="<<std::hex<<internalFormat<<std::dec<<std::endl;
}
void Texture::computeInternalFormatType() const
{
// Here we could also precompute the _sourceFormat if it is not set,
// since it is different for different internal formats
// (i.e. rgba integer texture --> _sourceFormat = GL_RGBA_INTEGER_EXT)
// Should we do this? ( Art, 09. Sept. 2007)
// compute internal format type based on the internal format
switch(_internalFormat)
{
case GL_RGBA32UI_EXT:
case GL_RGBA16UI_EXT:
case GL_RGBA8UI_EXT:
case GL_RGB32UI_EXT:
case GL_RGB16UI_EXT:
case GL_RGB8UI_EXT:
case GL_LUMINANCE32UI_EXT:
case GL_LUMINANCE16UI_EXT:
case GL_LUMINANCE8UI_EXT:
case GL_INTENSITY32UI_EXT:
case GL_INTENSITY16UI_EXT:
case GL_INTENSITY8UI_EXT:
case GL_LUMINANCE_ALPHA32UI_EXT:
case GL_LUMINANCE_ALPHA16UI_EXT:
case GL_LUMINANCE_ALPHA8UI_EXT :
_internalFormatType = UNSIGNED_INTEGER;
break;
case GL_RGBA32I_EXT:
case GL_RGBA16I_EXT:
case GL_RGBA8I_EXT:
case GL_RGB32I_EXT:
case GL_RGB16I_EXT:
case GL_RGB8I_EXT:
case GL_LUMINANCE32I_EXT:
case GL_LUMINANCE16I_EXT:
case GL_LUMINANCE8I_EXT:
case GL_INTENSITY32I_EXT:
case GL_INTENSITY16I_EXT:
case GL_INTENSITY8I_EXT:
case GL_LUMINANCE_ALPHA32I_EXT:
case GL_LUMINANCE_ALPHA16I_EXT:
case GL_LUMINANCE_ALPHA8I_EXT:
_internalFormatType = SIGNED_INTEGER;
break;
case GL_RGBA32F_ARB:
case GL_RGBA16F_ARB:
case GL_RGB32F_ARB:
case GL_RGB16F_ARB:
case GL_LUMINANCE32F_ARB:
case GL_LUMINANCE16F_ARB:
case GL_INTENSITY32F_ARB:
case GL_INTENSITY16F_ARB:
case GL_LUMINANCE_ALPHA32F_ARB:
case GL_LUMINANCE_ALPHA16F_ARB:
_internalFormatType = FLOAT;
break;
default:
_internalFormatType = NORMALIZED;
break;
};
}
bool Texture::isCompressedInternalFormat() const
{
return isCompressedInternalFormat(getInternalFormat());
}
bool Texture::isCompressedInternalFormat(GLint internalFormat)
{
switch(internalFormat)
{
case(GL_COMPRESSED_ALPHA_ARB):
case(GL_COMPRESSED_INTENSITY_ARB):
case(GL_COMPRESSED_LUMINANCE_ALPHA_ARB):
case(GL_COMPRESSED_LUMINANCE_ARB):
case(GL_COMPRESSED_RGBA_ARB):
case(GL_COMPRESSED_RGB_ARB):
case(GL_COMPRESSED_RGB_S3TC_DXT1_EXT):
case(GL_COMPRESSED_RGBA_S3TC_DXT1_EXT):
case(GL_COMPRESSED_RGBA_S3TC_DXT3_EXT):
case(GL_COMPRESSED_RGBA_S3TC_DXT5_EXT):
case(GL_COMPRESSED_SIGNED_RED_RGTC1_EXT):
case(GL_COMPRESSED_RED_RGTC1_EXT):
case(GL_COMPRESSED_SIGNED_RED_GREEN_RGTC2_EXT):
case(GL_COMPRESSED_RED_GREEN_RGTC2_EXT):
case(GL_ETC1_RGB8_OES):
case(GL_COMPRESSED_RGB8_ETC2):
case(GL_COMPRESSED_SRGB8_ETC2):
case(GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2):
case(GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2):
case(GL_COMPRESSED_RGBA8_ETC2_EAC):
case(GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC):
case(GL_COMPRESSED_R11_EAC):
case(GL_COMPRESSED_SIGNED_R11_EAC):
case(GL_COMPRESSED_RG11_EAC):
case(GL_COMPRESSED_SIGNED_RG11_EAC):
case(GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG):
case(GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG):
case(GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG):
case(GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG):
return true;
default:
return false;
}
}
void Texture::getCompressedSize(GLenum internalFormat, GLint width, GLint height, GLint depth, GLint& blockSize, GLint& size)
{
if (internalFormat == GL_COMPRESSED_RGB_S3TC_DXT1_EXT || internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT)
blockSize = 8;
else if (internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT || internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
blockSize = 16;
else if (internalFormat == GL_COMPRESSED_RGB8_ETC2 || internalFormat == GL_COMPRESSED_SRGB8_ETC2)
blockSize = 8;
else if (internalFormat == GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2 || internalFormat == GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2)
blockSize = 8;
else if (internalFormat == GL_COMPRESSED_RGBA8_ETC2_EAC || internalFormat == GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC)
blockSize = 16;
else if (internalFormat == GL_COMPRESSED_R11_EAC || internalFormat == GL_COMPRESSED_SIGNED_R11_EAC)
blockSize = 8;
else if (internalFormat == GL_COMPRESSED_RG11_EAC || internalFormat == GL_COMPRESSED_SIGNED_RG11_EAC)
blockSize = 16;
else if (internalFormat == GL_COMPRESSED_RED_RGTC1_EXT || internalFormat == GL_COMPRESSED_SIGNED_RED_RGTC1_EXT)
blockSize = 8;
else if (internalFormat == GL_COMPRESSED_RED_GREEN_RGTC2_EXT || internalFormat == GL_COMPRESSED_SIGNED_RED_GREEN_RGTC2_EXT)
blockSize = 16;
else if (internalFormat == GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG || internalFormat == GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG)
{
blockSize = 8 * 4; // Pixel by pixel block size for 2bpp
GLint widthBlocks = width / 8;
GLint heightBlocks = height / 4;
GLint bpp = 2;
// Clamp to minimum number of blocks
if(widthBlocks < 2)
widthBlocks = 2;
if(heightBlocks < 2)
heightBlocks = 2;
size = widthBlocks * heightBlocks * ((blockSize * bpp) / 8);
return;
}
else if (internalFormat == GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG || internalFormat == GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG)
{
blockSize = 4 * 4; // Pixel by pixel block size for 4bpp
GLint widthBlocks = width / 4;
GLint heightBlocks = height / 4;
GLint bpp = 4;
// Clamp to minimum number of blocks
if(widthBlocks < 2)
widthBlocks = 2;
if(heightBlocks < 2)
heightBlocks = 2;
size = widthBlocks * heightBlocks * ((blockSize * bpp) / 8);
return;
}
else
{
OSG_WARN<<"Texture::getCompressedSize(...) : cannot compute correct size of compressed format ("<<internalFormat<<") returning 0."<<std::endl;
blockSize = 0;
}
size = ((width+3)/4)*((height+3)/4)*depth*blockSize;
}
void Texture::applyTexParameters(GLenum target, State& state) const
{
// get the contextID (user defined ID of 0 upwards) for the
// current OpenGL context.
const unsigned int contextID = state.getContextID();
const Extensions* extensions = getExtensions(contextID,true);
WrapMode ws = _wrap_s, wt = _wrap_t, wr = _wrap_r;
// GL_IBM_texture_mirrored_repeat, fall-back REPEAT
if (!extensions->isTextureMirroredRepeatSupported())
{
if (ws == MIRROR)
ws = REPEAT;
if (wt == MIRROR)
wt = REPEAT;
if (wr == MIRROR)
wr = REPEAT;
}
// GL_EXT_texture_edge_clamp, fall-back CLAMP
if (!extensions->isTextureEdgeClampSupported())
{
if (ws == CLAMP_TO_EDGE)
ws = CLAMP;
if (wt == CLAMP_TO_EDGE)
wt = CLAMP;
if (wr == CLAMP_TO_EDGE)
wr = CLAMP;
}
if(!extensions->isTextureBorderClampSupported())
{
if(ws == CLAMP_TO_BORDER)
ws = CLAMP;
if(wt == CLAMP_TO_BORDER)
wt = CLAMP;
if(wr == CLAMP_TO_BORDER)
wr = CLAMP;
}
#if defined(OSG_GLES1_AVAILABLE) || defined(OSG_GLES2_AVAILABLE)
if (ws == CLAMP) ws = CLAMP_TO_EDGE;
if (wt == CLAMP) wt = CLAMP_TO_EDGE;
if (wr == CLAMP) wr = CLAMP_TO_EDGE;
#endif
const Image * image = getImage(0);
if( image &&
image->isMipmap() &&
extensions->isTextureMaxLevelSupported() &&
int( image->getNumMipmapLevels() ) <
Image::computeNumberOfMipmapLevels( image->s(), image->t(), image->r() ) )
glTexParameteri( target, GL_TEXTURE_MAX_LEVEL, image->getNumMipmapLevels() - 1 );
glTexParameteri( target, GL_TEXTURE_WRAP_S, ws );
if (target!=GL_TEXTURE_1D) glTexParameteri( target, GL_TEXTURE_WRAP_T, wt );
if (target==GL_TEXTURE_3D) glTexParameteri( target, GL_TEXTURE_WRAP_R, wr );
glTexParameteri( target, GL_TEXTURE_MIN_FILTER, _min_filter);
glTexParameteri( target, GL_TEXTURE_MAG_FILTER, _mag_filter);
// Art: I think anisotropic filtering is not supported by the integer textures
if (extensions->isTextureFilterAnisotropicSupported() &&
_internalFormatType != SIGNED_INTEGER && _internalFormatType != UNSIGNED_INTEGER)
{
// note, GL_TEXTURE_MAX_ANISOTROPY_EXT will either be defined
// by gl.h (or via glext.h) or by include/osg/Texture.
glTexParameterf(target, GL_TEXTURE_MAX_ANISOTROPY_EXT, _maxAnisotropy);
}
if (extensions->isTextureSwizzleSupported())
{
// note, GL_TEXTURE_SWIZZLE_RGBA will either be defined
// by gl.h (or via glext.h) or by include/osg/Texture.
glTexParameteriv(target, GL_TEXTURE_SWIZZLE_RGBA, _swizzle.ptr());
}
if (extensions->isTextureBorderClampSupported())
{
#ifndef GL_TEXTURE_BORDER_COLOR
#define GL_TEXTURE_BORDER_COLOR 0x1004
#endif
if (_internalFormatType == SIGNED_INTEGER)
{
GLint color[4] = {(GLint)_borderColor.r(), (GLint)_borderColor.g(), (GLint)_borderColor.b(), (GLint)_borderColor.a()};
extensions->glTexParameterIiv(target, GL_TEXTURE_BORDER_COLOR, color);
}else if (_internalFormatType == UNSIGNED_INTEGER)
{
GLuint color[4] = {(GLuint)_borderColor.r(), (GLuint)_borderColor.g(), (GLuint)_borderColor.b(), (GLuint)_borderColor.a()};
extensions->glTexParameterIuiv(target, GL_TEXTURE_BORDER_COLOR, color);
}else{
GLfloat color[4] = {(GLfloat)_borderColor.r(), (GLfloat)_borderColor.g(), (GLfloat)_borderColor.b(), (GLfloat)_borderColor.a()};
glTexParameterfv(target, GL_TEXTURE_BORDER_COLOR, color);
}
}
// integer textures are not supported by the shadow
// GL_TEXTURE_1D_ARRAY_EXT could be included in the check below but its not yet implemented in OSG
if (extensions->isShadowSupported() &&
(target == GL_TEXTURE_2D || target == GL_TEXTURE_1D || target == GL_TEXTURE_RECTANGLE || target == GL_TEXTURE_CUBE_MAP || target == GL_TEXTURE_2D_ARRAY_EXT ) &&
_internalFormatType != SIGNED_INTEGER && _internalFormatType != UNSIGNED_INTEGER)
{
if (_use_shadow_comparison)
{
glTexParameteri(target, GL_TEXTURE_COMPARE_MODE_ARB, GL_COMPARE_R_TO_TEXTURE_ARB);
glTexParameteri(target, GL_TEXTURE_COMPARE_FUNC_ARB, _shadow_compare_func);
glTexParameteri(target, GL_DEPTH_TEXTURE_MODE_ARB, _shadow_texture_mode);
// if ambient value is 0 - it is default behaviour of GL_ARB_shadow
// no need for GL_ARB_shadow_ambient in this case
if (extensions->isShadowAmbientSupported() && _shadow_ambient > 0)
{
glTexParameterf(target, TEXTURE_COMPARE_FAIL_VALUE_ARB, _shadow_ambient);
}
}
else
{
glTexParameteri(target, GL_TEXTURE_COMPARE_MODE_ARB, GL_NONE);
}
}
// Apply image load/store attributes
if (extensions->isBindImageTextureSupported() && _imageAttachment.access!=0)
{
TextureObject* tobj = getTextureObject(contextID);
if (tobj)
{
extensions->glBindImageTexture(
_imageAttachment.unit, tobj->id(), _imageAttachment.level,
_imageAttachment.layered, _imageAttachment.layer, _imageAttachment.access,
_imageAttachment.format!=0 ? _imageAttachment.format : _internalFormat);
}
}
getTextureParameterDirty(state.getContextID()) = false;
}
void Texture::computeRequiredTextureDimensions(State& state, const osg::Image& image,GLsizei& inwidth, GLsizei& inheight,GLsizei& numMipmapLevels) const
{
const unsigned int contextID = state.getContextID();
const Extensions* extensions = getExtensions(contextID,true);
int width,height;
if( !_resizeNonPowerOfTwoHint && extensions->isNonPowerOfTwoTextureSupported(_min_filter) )
{
width = image.s();
height = image.t();
}
else
{
width = Image::computeNearestPowerOfTwo(image.s()-2*_borderWidth)+2*_borderWidth;
height = Image::computeNearestPowerOfTwo(image.t()-2*_borderWidth)+2*_borderWidth;
}
// cap the size to what the graphics hardware can handle.
if (width>extensions->maxTextureSize()) width = extensions->maxTextureSize();
if (height>extensions->maxTextureSize()) height = extensions->maxTextureSize();
inwidth = width;
inheight = height;
if( _min_filter == LINEAR || _min_filter == NEAREST)
{
numMipmapLevels = 1;
}
else if( image.isMipmap() )
{
numMipmapLevels = image.getNumMipmapLevels();
}
else
{
numMipmapLevels = 1;
for(int s=1; s<width || s<height; s <<= 1, ++numMipmapLevels) {}
}
// OSG_NOTICE<<"Texture::computeRequiredTextureDimensions() image.s() "<<image.s()<<" image.t()="<<image.t()<<" width="<<width<<" height="<<height<<" numMipmapLevels="<<numMipmapLevels<<std::endl;
// OSG_NOTICE<<" _resizeNonPowerOfTwoHint="<<_resizeNonPowerOfTwoHint<<" extensions->isNonPowerOfTwoTextureSupported(_min_filter)="<<extensions->isNonPowerOfTwoTextureSupported(_min_filter) <<std::endl;
}
bool Texture::areAllTextureObjectsLoaded() const
{
for(unsigned int i=0;i<DisplaySettings::instance()->getMaxNumberOfGraphicsContexts();++i)
{
if (_textureObjectBuffer[i]==0) return false;
}
return true;
}
void Texture::applyTexImage2D_load(State& state, GLenum target, const Image* image, GLsizei inwidth, GLsizei inheight,GLsizei numMipmapLevels) const
{
// if we don't have a valid image we can't create a texture!
if (!image || !image->data())
return;
#ifdef DO_TIMING
osg::Timer_t start_tick = osg::Timer::instance()->tick();
OSG_NOTICE<<"glTexImage2D pixelFormat = "<<std::hex<<image->getPixelFormat()<<std::dec<<std::endl;
#endif
// get the contextID (user defined ID of 0 upwards) for the
// current OpenGL context.
const unsigned int contextID = state.getContextID();
const Extensions* extensions = getExtensions(contextID,true);
// select the internalFormat required for the texture.
bool compressed_image = isCompressedInternalFormat((GLenum)image->getPixelFormat());
// If the texture's internal format is a compressed type, then the
// user is requesting that the graphics card compress the image if it's
// not already compressed. However, if the image is not a multiple of
// four in each dimension the subsequent calls to glTexSubImage* will
// fail. Revert to uncompressed format in this case.
if (isCompressedInternalFormat(_internalFormat) &&
(((inwidth >> 2) << 2) != inwidth ||
((inheight >> 2) << 2) != inheight))
{
OSG_NOTICE<<"Received a request to compress an image, but image size is not a multiple of four ("<<inwidth<<"x"<<inheight<<"). Reverting to uncompressed.\n";
switch(_internalFormat)
{
case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
case GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG:
case GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG:
case GL_ETC1_RGB8_OES:
case(GL_COMPRESSED_RGB8_ETC2):
case(GL_COMPRESSED_SRGB8_ETC2):
case GL_COMPRESSED_RGB: _internalFormat = GL_RGB; break;
case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
case GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG:
case GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG:
case(GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2):
case(GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2):
case(GL_COMPRESSED_RGBA8_ETC2_EAC):
case(GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC):
case GL_COMPRESSED_RGBA: _internalFormat = GL_RGBA; break;
case GL_COMPRESSED_ALPHA: _internalFormat = GL_ALPHA; break;
case GL_COMPRESSED_LUMINANCE: _internalFormat = GL_LUMINANCE; break;
case GL_COMPRESSED_LUMINANCE_ALPHA: _internalFormat = GL_LUMINANCE_ALPHA; break;
case GL_COMPRESSED_INTENSITY: _internalFormat = GL_INTENSITY; break;
case(GL_COMPRESSED_R11_EAC):
case(GL_COMPRESSED_SIGNED_R11_EAC):
case GL_COMPRESSED_SIGNED_RED_RGTC1_EXT:
case GL_COMPRESSED_RED_RGTC1_EXT: _internalFormat = GL_RED; break;
case(GL_COMPRESSED_RG11_EAC):
case(GL_COMPRESSED_SIGNED_RG11_EAC):
case GL_COMPRESSED_SIGNED_RED_GREEN_RGTC2_EXT:
case GL_COMPRESSED_RED_GREEN_RGTC2_EXT: _internalFormat = GL_RG; break;
}
}
glPixelStorei(GL_UNPACK_ALIGNMENT,image->getPacking());
unsigned int rowLength = image->getRowLength();
bool useClientStorage = extensions->isClientStorageSupported() && getClientStorageHint();
if (useClientStorage)
{
glPixelStorei(GL_UNPACK_CLIENT_STORAGE_APPLE,GL_TRUE);
#if !defined(OSG_GLES1_AVAILABLE) && !defined(OSG_GLES2_AVAILABLE) && !defined(OSG_GL3_AVAILABLE)
glTexParameterf(GL_TEXTURE_2D,GL_TEXTURE_PRIORITY,0.0f);
#endif
#ifdef GL_TEXTURE_STORAGE_HINT_APPLE
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_STORAGE_HINT_APPLE , GL_STORAGE_CACHED_APPLE);
#endif
}
unsigned char* dataPtr = (unsigned char*)image->data();
// OSG_NOTICE<<"inwidth="<<inwidth<<" inheight="<<inheight<<" image->getFileName()"<<image->getFileName()<<std::endl;
bool needImageRescale = inwidth!=image->s() || inheight!=image->t();
if (needImageRescale)
{
// resize the image to power of two.
if (image->isMipmap())
{
OSG_WARN<<"Warning:: Mipmapped osg::Image not a power of two, cannot apply to texture."<<std::endl;
return;
}
else if (compressed_image)
{
OSG_WARN<<"Warning:: Compressed osg::Image not a power of two, cannot apply to texture."<<std::endl;
return;
}
unsigned int newTotalSize = osg::Image::computeRowWidthInBytes(inwidth,image->getPixelFormat(),image->getDataType(),image->getPacking())*inheight;
dataPtr = new unsigned char [newTotalSize];
if (!dataPtr)
{
OSG_WARN<<"Warning:: Not enough memory to resize image, cannot apply to texture."<<std::endl;
return;
}
if (!image->getFileName().empty()) { OSG_NOTICE << "Scaling image '"<<image->getFileName()<<"' from ("<<image->s()<<","<<image->t()<<") to ("<<inwidth<<","<<inheight<<")"<<std::endl; }
else { OSG_NOTICE << "Scaling image from ("<<image->s()<<","<<image->t()<<") to ("<<inwidth<<","<<inheight<<")"<<std::endl; }
PixelStorageModes psm;
psm.pack_alignment = image->getPacking();
psm.pack_row_length = image->getRowLength();
psm.unpack_alignment = image->getPacking();
// rescale the image to the correct size.
gluScaleImage(&psm, image->getPixelFormat(),
image->s(),image->t(),image->getDataType(),image->data(),
inwidth,inheight,image->getDataType(),
dataPtr);
rowLength = 0;
}
bool mipmappingRequired = _min_filter != LINEAR && _min_filter != NEAREST;
bool useHardwareMipMapGeneration = mipmappingRequired && (!image->isMipmap() && isHardwareMipmapGenerationEnabled(state));
bool useGluBuildMipMaps = mipmappingRequired && (!useHardwareMipMapGeneration && !image->isMipmap());
GLBufferObject* pbo = image->getOrCreateGLBufferObject(contextID);
if (pbo && !needImageRescale && !useGluBuildMipMaps)
{
state.bindPixelBufferObject(pbo);
dataPtr = reinterpret_cast<unsigned char*>(pbo->getOffset(image->getBufferIndex()));
rowLength = 0;
#ifdef DO_TIMING
OSG_NOTICE<<"after PBO "<<osg::Timer::instance()->delta_m(start_tick,osg::Timer::instance()->tick())<<"ms"<<std::endl;
#endif
}
else
{
pbo = 0;
}
#if !defined(OSG_GLES1_AVAILABLE) && !defined(OSG_GLES2_AVAILABLE)
glPixelStorei(GL_UNPACK_ROW_LENGTH,rowLength);
#endif
if( !mipmappingRequired || useHardwareMipMapGeneration)
{
GenerateMipmapMode mipmapResult = mipmapBeforeTexImage(state, useHardwareMipMapGeneration);
if ( !compressed_image)
{
numMipmapLevels = 1;
glTexImage2D( target, 0, _internalFormat,
inwidth, inheight, _borderWidth,
(GLenum)image->getPixelFormat(),
(GLenum)image->getDataType(),
dataPtr);
}
else if (extensions->isCompressedTexImage2DSupported())
{
numMipmapLevels = 1;
GLint blockSize, size;
getCompressedSize(_internalFormat, inwidth, inheight, 1, blockSize,size);
extensions->glCompressedTexImage2D(target, 0, _internalFormat,
inwidth, inheight,0,
size,
dataPtr);
}
mipmapAfterTexImage(state, mipmapResult);
}
else
{
// we require mip mapping.
if(image->isMipmap())
{
// image is mip mapped so we take the mip map levels from the image.
numMipmapLevels = image->getNumMipmapLevels();
int width = inwidth;
int height = inheight;
bool useTexStorrage = extensions->isTexStorageEnabled();
GLenum sizedInternalFormat = 0;
if(useTexStorrage)
{
if(extensions->isTexStorage2DSupported() && _borderWidth == 0)
{
//calculate sized internal format
if(!compressed_image)
{
if(isSizedInternalFormat(_internalFormat))
{
sizedInternalFormat = _internalFormat;
}
else
{
sizedInternalFormat = assumeSizedInternalFormat((GLenum)image->getInternalTextureFormat(), (GLenum)image->getDataType());
}
}
else
{
if(isCompressedInternalFormatSupportedByTexStorrage(_internalFormat))
{
sizedInternalFormat = _internalFormat;
}
}
}
useTexStorrage &= sizedInternalFormat != 0;
}
if(useTexStorrage)
{
extensions->glTexStorage2D(target, numMipmapLevels, sizedInternalFormat, width, height);
if( !compressed_image )
{
for( GLsizei k = 0 ; k < numMipmapLevels && (width || height) ;k++)
{
if (width == 0)
width = 1;
if (height == 0)
height = 1;
glTexSubImage2D( target, k,
0, 0,
width, height,
(GLenum)image->getPixelFormat(),
(GLenum)image->getDataType(),
dataPtr + image->getMipmapOffset(k));
width >>= 1;
height >>= 1;
}
}
else if (extensions->isCompressedTexImage2DSupported())
{
GLint blockSize,size;
for( GLsizei k = 0 ; k < numMipmapLevels && (width || height) ;k++)
{
if (width == 0)
width = 1;
if (height == 0)
height = 1;
getCompressedSize(image->getInternalTextureFormat(), width, height, 1, blockSize,size);
//state.checkGLErrors("before extensions->glCompressedTexSubImage2D(");
extensions->glCompressedTexSubImage2D(target, k,
0, 0,
width, height,
(GLenum)image->getPixelFormat(),
size,
dataPtr + image->getMipmapOffset(k));
//state.checkGLErrors("after extensions->glCompressedTexSubImage2D(");
width >>= 1;
height >>= 1;
}
}
}
else
{
if( !compressed_image )
{
for( GLsizei k = 0 ; k < numMipmapLevels && (width || height) ;k++)
{
if (width == 0)
width = 1;
if (height == 0)
height = 1;
glTexImage2D( target, k, _internalFormat,
width, height, _borderWidth,
(GLenum)image->getPixelFormat(),
(GLenum)image->getDataType(),
dataPtr + image->getMipmapOffset(k));
width >>= 1;
height >>= 1;
}
}
else if (extensions->isCompressedTexImage2DSupported())
{
GLint blockSize, size;
for( GLsizei k = 0 ; k < numMipmapLevels && (width || height) ;k++)
{
if (width == 0)
width = 1;
if (height == 0)
height = 1;
getCompressedSize(_internalFormat, width, height, 1, blockSize,size);
extensions->glCompressedTexImage2D(target, k, _internalFormat,
width, height, _borderWidth,
size, dataPtr + image->getMipmapOffset(k));
width >>= 1;
height >>= 1;
}
}
}
}
else
{
if ( !compressed_image)
{
numMipmapLevels = 0;
gluBuild2DMipmaps( target, _internalFormat,
inwidth,inheight,
(GLenum)image->getPixelFormat(), (GLenum)image->getDataType(),
dataPtr);
int width = image->s();
int height = image->t();
for( numMipmapLevels = 0 ; (width || height) ; ++numMipmapLevels)
{
width >>= 1;
height >>= 1;
}
}
else
{
OSG_WARN<<"Warning:: Compressed image cannot be mip mapped"<<std::endl;
}
}
}
if (pbo)
{
state.unbindPixelBufferObject();
const BufferObject* bo = image->getBufferObject();
if (bo->getCopyDataAndReleaseGLBufferObject())
{
pbo->setBufferDataHasBeenRead(image);
if (pbo->hasAllBufferDataBeenRead())
{
//OSG_NOTICE<<"Release PBO"<<std::endl;
bo->releaseGLObjects(&state);
}
}
}
#ifdef DO_TIMING
static double s_total_time = 0.0;
double delta_time = osg::Timer::instance()->delta_m(start_tick,osg::Timer::instance()->tick());
s_total_time += delta_time;
OSG_NOTICE<<"glTexImage2D "<<delta_time<<"ms total "<<s_total_time<<"ms"<<std::endl;
#endif
if (needImageRescale)
{
// clean up the resized image.
delete [] dataPtr;
}
if (useClientStorage)
{
glPixelStorei(GL_UNPACK_CLIENT_STORAGE_APPLE,GL_FALSE);
}
}
void Texture::applyTexImage2D_subload(State& state, GLenum target, const Image* image, GLsizei inwidth, GLsizei inheight, GLint inInternalFormat, GLint numMipmapLevels) const
{
// if we don't have a valid image we can't create a texture!
if (!image || !image->data())
return;
// image size has changed so we have to re-load the image from scratch.
if (image->s()!=inwidth || image->t()!=inheight || image->getInternalTextureFormat()!=inInternalFormat )
{
applyTexImage2D_load(state, target, image, inwidth, inheight,numMipmapLevels);
return;
}
// else image size the same as when loaded so we can go ahead and subload
// If the texture's internal format is a compressed type, then the
// user is requesting that the graphics card compress the image if it's
// not already compressed. However, if the image is not a multiple of
// four in each dimension the subsequent calls to glTexSubImage* will
// fail. Revert to uncompressed format in this case.
if (isCompressedInternalFormat(_internalFormat) &&
(((inwidth >> 2) << 2) != inwidth ||
((inheight >> 2) << 2) != inheight))
{
applyTexImage2D_load(state, target, image, inwidth, inheight, numMipmapLevels);
return;
}
#ifdef DO_TIMING
osg::Timer_t start_tick = osg::Timer::instance()->tick();
OSG_NOTICE<<"glTexSubImage2D pixelFormat = "<<std::hex<<image->getPixelFormat()<<std::dec<<std::endl;
#endif
// get the contextID (user defined ID of 0 upwards) for the
// current OpenGL context.
const unsigned int contextID = state.getContextID();
const Extensions* extensions = getExtensions(contextID,true);
// select the internalFormat required for the texture.
bool compressed_image = isCompressedInternalFormat((GLenum)image->getPixelFormat());
glPixelStorei(GL_UNPACK_ALIGNMENT,image->getPacking());
unsigned int rowLength = image->getRowLength();
unsigned char* dataPtr = (unsigned char*)image->data();
bool needImageRescale = inwidth!=image->s() || inheight!=image->t();
if (needImageRescale)
{
// resize the image to power of two.
if (image->isMipmap())
{
OSG_WARN<<"Warning:: Mipmapped osg::Image not a power of two, cannot apply to texture."<<std::endl;
return;
}
else if (compressed_image)
{
OSG_WARN<<"Warning:: Compressed osg::Image not a power of two, cannot apply to texture."<<std::endl;
return;
}
unsigned int newTotalSize = osg::Image::computeRowWidthInBytes(inwidth,image->getPixelFormat(),image->getDataType(),image->getPacking())*inheight;
dataPtr = new unsigned char [newTotalSize];
if (!dataPtr)
{
OSG_WARN<<"Warning:: Not enough memory to resize image, cannot apply to texture."<<std::endl;
return;
}
if (!image->getFileName().empty()) { OSG_NOTICE << "Scaling image '"<<image->getFileName()<<"' from ("<<image->s()<<","<<image->t()<<") to ("<<inwidth<<","<<inheight<<")"<<std::endl; }
else { OSG_NOTICE << "Scaling image from ("<<image->s()<<","<<image->t()<<") to ("<<inwidth<<","<<inheight<<")"<<std::endl; }
// rescale the image to the correct size.
PixelStorageModes psm;
psm.pack_alignment = image->getPacking();
psm.unpack_alignment = image->getPacking();
gluScaleImage(&psm, image->getPixelFormat(),
image->s(),image->t(),image->getDataType(),image->data(),
inwidth,inheight,image->getDataType(),
dataPtr);
rowLength = 0;
}
bool mipmappingRequired = _min_filter != LINEAR && _min_filter != NEAREST;
bool useHardwareMipMapGeneration = mipmappingRequired && (!image->isMipmap() && isHardwareMipmapGenerationEnabled(state));
bool useGluBuildMipMaps = mipmappingRequired && (!useHardwareMipMapGeneration && !image->isMipmap());
GLBufferObject* pbo = image->getOrCreateGLBufferObject(contextID);
if (pbo && !needImageRescale && !useGluBuildMipMaps)
{
state.bindPixelBufferObject(pbo);
dataPtr = reinterpret_cast<unsigned char*>(pbo->getOffset(image->getBufferIndex()));
rowLength = 0;
#ifdef DO_TIMING
OSG_NOTICE<<"after PBO "<<osg::Timer::instance()->delta_m(start_tick,osg::Timer::instance()->tick())<<"ms"<<std::endl;
#endif
}
else
{
pbo = 0;
}
#if !defined(OSG_GLES1_AVAILABLE) && !defined(OSG_GLES2_AVAILABLE)
glPixelStorei(GL_UNPACK_ROW_LENGTH,rowLength);
#endif
if( !mipmappingRequired || useHardwareMipMapGeneration)
{
GenerateMipmapMode mipmapResult = mipmapBeforeTexImage(state, useHardwareMipMapGeneration);
if (!compressed_image)
{
glTexSubImage2D( target, 0,
0, 0,
inwidth, inheight,
(GLenum)image->getPixelFormat(),
(GLenum)image->getDataType(),
dataPtr);
}
else if (extensions->isCompressedTexImage2DSupported())
{
GLint blockSize,size;
getCompressedSize(image->getInternalTextureFormat(), inwidth, inheight, 1, blockSize,size);
extensions->glCompressedTexSubImage2D(target, 0,
0,0,
inwidth, inheight,
(GLenum)image->getPixelFormat(),
size,
dataPtr);
}
mipmapAfterTexImage(state, mipmapResult);
}
else
{
if (image->isMipmap())
{
numMipmapLevels = image->getNumMipmapLevels();
int width = inwidth;
int height = inheight;
if( !compressed_image )
{
for( GLsizei k = 0 ; k < numMipmapLevels && (width || height) ;k++)
{
if (width == 0)
width = 1;
if (height == 0)
height = 1;
glTexSubImage2D( target, k,
0, 0,
width, height,
(GLenum)image->getPixelFormat(),
(GLenum)image->getDataType(),
dataPtr + image->getMipmapOffset(k));
width >>= 1;
height >>= 1;
}
}
else if (extensions->isCompressedTexImage2DSupported())
{
GLint blockSize,size;
for( GLsizei k = 0 ; k < numMipmapLevels && (width || height) ;k++)
{
if (width == 0)
width = 1;
if (height == 0)
height = 1;
getCompressedSize(image->getInternalTextureFormat(), width, height, 1, blockSize,size);
//state.checkGLErrors("before extensions->glCompressedTexSubImage2D(");
extensions->glCompressedTexSubImage2D(target, k,
0, 0,
width, height,
(GLenum)image->getPixelFormat(),
size,
dataPtr + image->getMipmapOffset(k));
//state.checkGLErrors("after extensions->glCompressedTexSubImage2D(");
width >>= 1;
height >>= 1;
}
}
}
else
{
//OSG_WARN<<"Warning:: cannot subload mip mapped texture from non mipmapped image."<<std::endl;
applyTexImage2D_load(state, target, image, inwidth, inheight,numMipmapLevels);
}
}
if (pbo)
{
state.unbindPixelBufferObject();
}
#ifdef DO_TIMING
OSG_NOTICE<<"glTexSubImage2D "<<osg::Timer::instance()->delta_m(start_tick,osg::Timer::instance()->tick())<<"ms"<<std::endl;
#endif
if (needImageRescale)
{
// clean up the resized image.
delete [] dataPtr;
}
}
bool Texture::isHardwareMipmapGenerationEnabled(const State& state) const
{
if (_useHardwareMipMapGeneration)
{
unsigned int contextID = state.getContextID();
const Extensions* extensions = getExtensions(contextID,true);
if (extensions->isGenerateMipMapSupported())
{
return true;
}
const FBOExtensions* fbo_ext = FBOExtensions::instance(contextID,true);
if (fbo_ext->isSupported() && fbo_ext->glGenerateMipmap)
{
return true;
}
}
return false;
}
Texture::GenerateMipmapMode Texture::mipmapBeforeTexImage(const State& state, bool hardwareMipmapOn) const
{
if (hardwareMipmapOn)
{
#if defined( OSG_GLES2_AVAILABLE ) || defined( OSG_GL3_AVAILABLE )
return GENERATE_MIPMAP;
#else
FBOExtensions* fbo_ext = FBOExtensions::instance(state.getContextID(),true);
bool useGenerateMipMap = fbo_ext->isSupported() && fbo_ext->glGenerateMipmap;
if (useGenerateMipMap)
{
if (Texture::getExtensions(state.getContextID(),true)->getPreferGenerateMipmapSGISForPowerOfTwo())
{
int width = getTextureWidth();
int height = getTextureHeight();
useGenerateMipMap = ((width & (width - 1)) || (height & (height - 1)));
}
if (useGenerateMipMap)
{
useGenerateMipMap = (_internalFormatType != SIGNED_INTEGER && _internalFormatType != UNSIGNED_INTEGER);
}
if (useGenerateMipMap) return GENERATE_MIPMAP;
}
glTexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP_SGIS, GL_TRUE);
return GENERATE_MIPMAP_TEX_PARAMETER;
#endif
}
return GENERATE_MIPMAP_NONE;
}
void Texture::mipmapAfterTexImage(State& state, GenerateMipmapMode beforeResult) const
{
switch (beforeResult)
{
case GENERATE_MIPMAP:
{
unsigned int contextID = state.getContextID();
TextureObject* textureObject = getTextureObject(contextID);
if (textureObject)
{
osg::FBOExtensions* fbo_ext = osg::FBOExtensions::instance(contextID, true);
fbo_ext->glGenerateMipmap(textureObject->target());
}
break;
}
case GENERATE_MIPMAP_TEX_PARAMETER:
glTexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP_SGIS, GL_FALSE);
break;
case GENERATE_MIPMAP_NONE:
break;
}
}
void Texture::generateMipmap(State& state) const
{
const unsigned int contextID = state.getContextID();
// get the texture object for the current contextID.
TextureObject* textureObject = getTextureObject(contextID);
// if not initialized before, then do nothing
if (textureObject == NULL) return;
_texMipmapGenerationDirtyList[contextID] = 0;
// if internal format does not provide automatic mipmap generation, then do manual allocation
if (_internalFormatType == SIGNED_INTEGER || _internalFormatType == UNSIGNED_INTEGER)
{
allocateMipmap(state);
return;
}
// get fbo extension which provides us with the glGenerateMipmapEXT function
osg::FBOExtensions* fbo_ext = osg::FBOExtensions::instance(state.getContextID(), true);
// check if the function is supported
if (fbo_ext->isSupported() && fbo_ext->glGenerateMipmap)
{
textureObject->bind();
fbo_ext->glGenerateMipmap(textureObject->target());
// inform state that this texture is the current one bound.
state.haveAppliedTextureAttribute(state.getActiveTextureUnit(), this);
// if the function is not supported, then do manual allocation
}else
{
allocateMipmap(state);
}
}
void Texture::compileGLObjects(State& state) const
{
apply(state);
}
void Texture::resizeGLObjectBuffers(unsigned int maxSize)
{
_textureObjectBuffer.resize(maxSize);
_texParametersDirtyList.resize(maxSize);
_texMipmapGenerationDirtyList.resize(maxSize);
}
void Texture::releaseGLObjects(State* state) const
{
// if (state) OSG_NOTICE<<"Texture::releaseGLObjects contextID="<<state->getContextID()<<std::endl;
// else OSG_NOTICE<<"Texture::releaseGLObjects no State "<<std::endl;
if (!state) const_cast<Texture*>(this)->dirtyTextureObject();
else
{
unsigned int contextID = state->getContextID();
if (_textureObjectBuffer[contextID].valid())
{
Texture::releaseTextureObject(contextID, _textureObjectBuffer[contextID].get());
_textureObjectBuffer[contextID] = 0;
}
}
}
Texture::Extensions* Texture::getExtensions(unsigned int contextID,bool createIfNotInitalized)
{
if (!s_extensions[contextID] && createIfNotInitalized) s_extensions[contextID] = new Extensions(contextID);
return s_extensions[contextID].get();
}
void Texture::setExtensions(unsigned int contextID,Extensions* extensions)
{
s_extensions[contextID] = extensions;
}
Texture::Extensions::Extensions(unsigned int contextID)
{
const char* version = (const char*) glGetString( GL_VERSION );
if (!version)
{
OSG_FATAL<<"Error: In Texture::Extensions::setupGLExtensions(..) OpenGL version test failed, requires valid graphics context."<<std::endl;
return;
}
const char* renderer = (const char*) glGetString(GL_RENDERER);
std::string rendererString(renderer ? renderer : "");
bool radeonHardwareDetected = (rendererString.find("Radeon")!=std::string::npos || rendererString.find("RADEON")!=std::string::npos);
bool fireGLHardwareDetected = (rendererString.find("FireGL")!=std::string::npos || rendererString.find("FIREGL")!=std::string::npos);
bool builtInSupport = OSG_GLES2_FEATURES || OSG_GL3_FEATURES;
_isMultiTexturingSupported = builtInSupport || OSG_GLES1_FEATURES ||
isGLExtensionOrVersionSupported( contextID,"GL_ARB_multitexture", 1.3f) ||
isGLExtensionOrVersionSupported(contextID,"GL_EXT_multitexture", 1.3f);
_isTextureFilterAnisotropicSupported = isGLExtensionSupported(contextID,"GL_EXT_texture_filter_anisotropic");
_isTextureSwizzleSupported = isGLExtensionSupported(contextID,"GL_ARB_texture_swizzle");
_isTextureCompressionARBSupported = builtInSupport || isGLExtensionOrVersionSupported(contextID,"GL_ARB_texture_compression", 1.3f);
_isTextureCompressionS3TCSupported = isGLExtensionSupported(contextID,"GL_EXT_texture_compression_s3tc");
_isTextureCompressionPVRTC2BPPSupported = isGLExtensionSupported(contextID,"GL_IMG_texture_compression_pvrtc");
_isTextureCompressionPVRTC4BPPSupported = _isTextureCompressionPVRTC2BPPSupported;//covered by same extension
_isTextureCompressionETCSupported = isGLExtensionSupported(contextID,"GL_OES_compressed_ETC1_RGB8_texture");
_isTextureCompressionETC2Supported = isGLExtensionSupported(contextID,"GL_ARB_ES3_compatibility");
_isTextureCompressionRGTCSupported = isGLExtensionSupported(contextID,"GL_EXT_texture_compression_rgtc");
_isTextureCompressionPVRTCSupported = isGLExtensionSupported(contextID,"GL_IMG_texture_compression_pvrtc");
_isTextureMirroredRepeatSupported = builtInSupport ||
isGLExtensionOrVersionSupported(contextID,"GL_IBM_texture_mirrored_repeat", 1.4f) ||
isGLExtensionOrVersionSupported(contextID,"GL_ARB_texture_mirrored_repeat", 1.4f);
_isTextureEdgeClampSupported = builtInSupport ||
isGLExtensionOrVersionSupported(contextID,"GL_EXT_texture_edge_clamp", 1.2f) ||
isGLExtensionOrVersionSupported(contextID,"GL_SGIS_texture_edge_clamp", 1.2f);
_isTextureBorderClampSupported = OSG_GL3_FEATURES ||
((OSG_GL1_FEATURES || OSG_GL2_FEATURES) && isGLExtensionOrVersionSupported(contextID,"GL_ARB_texture_border_clamp", 1.3f));
_isGenerateMipMapSupported = builtInSupport || isGLExtensionOrVersionSupported(contextID,"GL_SGIS_generate_mipmap", 1.4f);
_preferGenerateMipmapSGISForPowerOfTwo = (radeonHardwareDetected||fireGLHardwareDetected) ? false : true;
_isTextureMultisampledSupported = isGLExtensionSupported(contextID,"GL_ARB_texture_multisample");
_isShadowSupported = OSG_GL3_FEATURES || isGLExtensionSupported(contextID,"GL_ARB_shadow");
_isShadowAmbientSupported = isGLExtensionSupported(contextID,"GL_ARB_shadow_ambient");
_isClientStorageSupported = isGLExtensionSupported(contextID,"GL_APPLE_client_storage");
_isNonPowerOfTwoTextureNonMipMappedSupported = builtInSupport || isGLExtensionOrVersionSupported(contextID,"GL_ARB_texture_non_power_of_two", 2.0) || isGLExtensionSupported(contextID,"GL_APPLE_texture_2D_limited_npot");
_isNonPowerOfTwoTextureMipMappedSupported = builtInSupport || _isNonPowerOfTwoTextureNonMipMappedSupported;
_isTextureIntegerEXTSupported = OSG_GL3_FEATURES || isGLExtensionSupported(contextID, "GL_EXT_texture_integer");
#if 0
if (rendererString.find("Radeon")!=std::string::npos || rendererString.find("RADEON")!=std::string::npos)
{
_isNonPowerOfTwoTextureMipMappedSupported = false;
OSG_INFO<<"Disabling _isNonPowerOfTwoTextureMipMappedSupported for ATI hardware."<<std::endl;
}
#endif
if (rendererString.find("GeForce FX")!=std::string::npos)
{
_isNonPowerOfTwoTextureMipMappedSupported = false;
OSG_INFO<<"Disabling _isNonPowerOfTwoTextureMipMappedSupported for GeForce FX hardware."<<std::endl;
}
_maxTextureSize=0;
glGetIntegerv(GL_MAX_TEXTURE_SIZE,&_maxTextureSize);
char *ptr;
if( (ptr = getenv("OSG_MAX_TEXTURE_SIZE")) != 0)
{
GLint osg_max_size = atoi(ptr);
if (osg_max_size<_maxTextureSize)
{
_maxTextureSize = osg_max_size;
}
}
setGLExtensionFuncPtr(_glTexStorage2D,"glTexStorage2D","glTexStorage2DARB");
setGLExtensionFuncPtr(_glCompressedTexImage2D,"glCompressedTexImage2D","glCompressedTexImage2DARB");
setGLExtensionFuncPtr(_glCompressedTexSubImage2D,"glCompressedTexSubImage2D","glCompressedTexSubImage2DARB");
setGLExtensionFuncPtr(_glGetCompressedTexImage,"glGetCompressedTexImage","glGetCompressedTexImageARB");;
setGLExtensionFuncPtr(_glTexImage2DMultisample, "glTexImage2DMultisample", "glTexImage2DMultisampleARB");
setGLExtensionFuncPtr(_glTexParameterIiv, "glTexParameterIiv", "glTexParameterIivARB");
setGLExtensionFuncPtr(_glTexParameterIuiv, "glTexParameterIuiv", "glTexParameterIuivARB");
if (_glTexParameterIiv == NULL) setGLExtensionFuncPtr(_glTexParameterIiv, "glTexParameterIivEXT");
if (_glTexParameterIuiv == NULL) setGLExtensionFuncPtr(_glTexParameterIuiv, "glTexParameterIuivEXT");
setGLExtensionFuncPtr(_glBindImageTexture, "glBindImageTexture", "glBindImageTextureARB");
_isTextureMaxLevelSupported = ( getGLVersionNumber() >= 1.2f );
_isTextureStorageEnabled = isTexStorage2DSupported();
if ( (ptr = getenv("OSG_GL_TEXTURE_STORAGE")) != 0 && isTexStorage2DSupported())
{
if (strcmp(ptr,"OFF")==0 || strcmp(ptr,"DISABLE")==0 ) _isTextureStorageEnabled = false;
else _isTextureStorageEnabled = true;
}
OSG_DEBUG<<"Texture::Extensions::Extensionts() _isTextureStorageEnabled = "<<_isTextureStorageEnabled<<std::endl;
}
}
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