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/**
* @file llgltexture.cpp
* @brief Opengl texture implementation
*
* $LicenseInfo:firstyear=2000&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* 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 GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#include "linden_common.h"
#include "llgltexture.h"
// static
S32 LLGLTexture::getTotalNumOfCategories()
{
return MAX_GL_IMAGE_CATEGORY - (BOOST_HIGH - BOOST_SCULPTED) + 2 ;
}
// static
//index starts from zero.
S32 LLGLTexture::getIndexFromCategory(S32 category)
{
return (category < BOOST_HIGH) ? category : category - (BOOST_HIGH - BOOST_SCULPTED) + 1 ;
}
//static
S32 LLGLTexture::getCategoryFromIndex(S32 index)
{
return (index < BOOST_HIGH) ? index : index + (BOOST_HIGH - BOOST_SCULPTED) - 1 ;
}
LLGLTexture::LLGLTexture(BOOL usemipmaps)
{
init();
mUseMipMaps = usemipmaps;
}
LLGLTexture::LLGLTexture(const U32 width, const U32 height, const U8 components, BOOL usemipmaps)
{
init();
mFullWidth = width ;
mFullHeight = height ;
mUseMipMaps = usemipmaps;
mComponents = components ;
setTexelsPerImage();
}
LLGLTexture::LLGLTexture(const LLImageRaw* raw, BOOL usemipmaps)
{
init();
mUseMipMaps = usemipmaps ;
// Create an empty image of the specified size and width
mGLTexturep = new LLImageGL(raw, usemipmaps) ;
}
LLGLTexture::~LLGLTexture()
{
cleanup();
}
void LLGLTexture::init()
{
mBoostLevel = LLGLTexture::BOOST_NONE;
mFullWidth = 0;
mFullHeight = 0;
mTexelsPerImage = 0 ;
mUseMipMaps = FALSE ;
mComponents = 0 ;
mTextureState = NO_DELETE ;
mDontDiscard = FALSE;
mNeedsGLTexture = FALSE ;
}
void LLGLTexture::cleanup()
{
if(mGLTexturep)
{
mGLTexturep->cleanup();
}
}
// virtual
void LLGLTexture::dump()
{
if(mGLTexturep)
{
mGLTexturep->dump();
}
}
void LLGLTexture::setBoostLevel(S32 level)
{
if(mBoostLevel != level)
{
mBoostLevel = level ;
if(mBoostLevel != LLGLTexture::BOOST_NONE
&& mBoostLevel != LLGLTexture::BOOST_ICON)
{
setNoDelete() ;
}
}
}
void LLGLTexture::forceActive()
{
mTextureState = ACTIVE ;
}
void LLGLTexture::setActive()
{
if(mTextureState != NO_DELETE)
{
mTextureState = ACTIVE ;
}
}
//set the texture to stay in memory
void LLGLTexture::setNoDelete()
{
mTextureState = NO_DELETE ;
}
void LLGLTexture::generateGLTexture()
{
if(mGLTexturep.isNull())
{
mGLTexturep = new LLImageGL(mFullWidth, mFullHeight, mComponents, mUseMipMaps) ;
}
}
LLImageGL* LLGLTexture::getGLTexture() const
{
llassert(mGLTexturep.notNull()) ;
return mGLTexturep ;
}
BOOL LLGLTexture::createGLTexture()
{
if(mGLTexturep.isNull())
{
generateGLTexture() ;
}
return mGLTexturep->createGLTexture() ;
}
BOOL LLGLTexture::createGLTexture(S32 discard_level, const LLImageRaw* imageraw, S32 usename, BOOL to_create, S32 category)
{
llassert(mGLTexturep.notNull()) ;
BOOL ret = mGLTexturep->createGLTexture(discard_level, imageraw, usename, to_create, category) ;
if(ret)
{
mFullWidth = mGLTexturep->getCurrentWidth() ;
mFullHeight = mGLTexturep->getCurrentHeight() ;
mComponents = mGLTexturep->getComponents() ;
setTexelsPerImage();
}
return ret ;
}
void LLGLTexture::setExplicitFormat(LLGLint internal_format, LLGLenum primary_format, LLGLenum type_format, BOOL swap_bytes)
{
llassert(mGLTexturep.notNull()) ;
mGLTexturep->setExplicitFormat(internal_format, primary_format, type_format, swap_bytes) ;
}
void LLGLTexture::setAddressMode(LLTexUnit::eTextureAddressMode mode)
{
llassert(mGLTexturep.notNull()) ;
mGLTexturep->setAddressMode(mode) ;
}
void LLGLTexture::setFilteringOption(LLTexUnit::eTextureFilterOptions option)
{
llassert(mGLTexturep.notNull()) ;
mGLTexturep->setFilteringOption(option) ;
}
//virtual
S32 LLGLTexture::getWidth(S32 discard_level) const
{
llassert(mGLTexturep.notNull()) ;
return mGLTexturep->getWidth(discard_level) ;
}
//virtual
S32 LLGLTexture::getHeight(S32 discard_level) const
{
llassert(mGLTexturep.notNull()) ;
return mGLTexturep->getHeight(discard_level) ;
}
S32 LLGLTexture::getMaxDiscardLevel() const
{
llassert(mGLTexturep.notNull()) ;
return mGLTexturep->getMaxDiscardLevel() ;
}
S32 LLGLTexture::getDiscardLevel() const
{
llassert(mGLTexturep.notNull()) ;
return mGLTexturep->getDiscardLevel() ;
}
S8 LLGLTexture::getComponents() const
{
llassert(mGLTexturep.notNull()) ;
return mGLTexturep->getComponents() ;
}
LLGLuint LLGLTexture::getTexName() const
{
llassert(mGLTexturep.notNull()) ;
return mGLTexturep->getTexName() ;
}
BOOL LLGLTexture::hasGLTexture() const
{
if(mGLTexturep.notNull())
{
return mGLTexturep->getHasGLTexture() ;
}
return FALSE ;
}
BOOL LLGLTexture::getBoundRecently() const
{
if(mGLTexturep.notNull())
{
return mGLTexturep->getBoundRecently() ;
}
return FALSE ;
}
LLTexUnit::eTextureType LLGLTexture::getTarget(void) const
{
llassert(mGLTexturep.notNull()) ;
return mGLTexturep->getTarget() ;
}
BOOL LLGLTexture::setSubImage(const LLImageRaw* imageraw, S32 x_pos, S32 y_pos, S32 width, S32 height)
{
llassert(mGLTexturep.notNull()) ;
return mGLTexturep->setSubImage(imageraw, x_pos, y_pos, width, height) ;
}
BOOL LLGLTexture::setSubImage(const U8* datap, S32 data_width, S32 data_height, S32 x_pos, S32 y_pos, S32 width, S32 height)
{
llassert(mGLTexturep.notNull()) ;
return mGLTexturep->setSubImage(datap, data_width, data_height, x_pos, y_pos, width, height) ;
}
void LLGLTexture::setGLTextureCreated (bool initialized)
{
llassert(mGLTexturep.notNull()) ;
mGLTexturep->setGLTextureCreated (initialized) ;
}
void LLGLTexture::setCategory(S32 category)
{
llassert(mGLTexturep.notNull()) ;
mGLTexturep->setCategory(category) ;
}
LLTexUnit::eTextureAddressMode LLGLTexture::getAddressMode(void) const
{
llassert(mGLTexturep.notNull()) ;
return mGLTexturep->getAddressMode() ;
}
S32Bytes LLGLTexture::getTextureMemory() const
{
llassert(mGLTexturep.notNull()) ;
return mGLTexturep->mTextureMemory ;
}
LLGLenum LLGLTexture::getPrimaryFormat() const
{
llassert(mGLTexturep.notNull()) ;
return mGLTexturep->getPrimaryFormat() ;
}
BOOL LLGLTexture::getIsAlphaMask() const
{
llassert(mGLTexturep.notNull()) ;
return mGLTexturep->getIsAlphaMask() ;
}
BOOL LLGLTexture::getMask(const LLVector2 &tc)
{
llassert(mGLTexturep.notNull()) ;
return mGLTexturep->getMask(tc) ;
}
F32 LLGLTexture::getTimePassedSinceLastBound()
{
llassert(mGLTexturep.notNull()) ;
return mGLTexturep->getTimePassedSinceLastBound() ;
}
BOOL LLGLTexture::getMissed() const
{
llassert(mGLTexturep.notNull()) ;
return mGLTexturep->getMissed() ;
}
BOOL LLGLTexture::isJustBound() const
{
llassert(mGLTexturep.notNull()) ;
return mGLTexturep->isJustBound() ;
}
void LLGLTexture::forceUpdateBindStats(void) const
{
llassert(mGLTexturep.notNull()) ;
return mGLTexturep->forceUpdateBindStats() ;
}
U32 LLGLTexture::getTexelsInAtlas() const
{
llassert(mGLTexturep.notNull()) ;
return mGLTexturep->getTexelsInAtlas() ;
}
U32 LLGLTexture::getTexelsInGLTexture() const
{
llassert(mGLTexturep.notNull()) ;
return mGLTexturep->getTexelsInGLTexture() ;
}
BOOL LLGLTexture::isGLTextureCreated() const
{
llassert(mGLTexturep.notNull()) ;
return mGLTexturep->isGLTextureCreated() ;
}
S32 LLGLTexture::getDiscardLevelInAtlas() const
{
llassert(mGLTexturep.notNull()) ;
return mGLTexturep->getDiscardLevelInAtlas() ;
}
void LLGLTexture::destroyGLTexture()
{
if(mGLTexturep.notNull() && mGLTexturep->getHasGLTexture())
{
mGLTexturep->destroyGLTexture() ;
mTextureState = DELETED ;
}
}
void LLGLTexture::setTexelsPerImage()
{
S32 fullwidth = llmin(mFullWidth,(S32)MAX_IMAGE_SIZE_DEFAULT);
S32 fullheight = llmin(mFullHeight,(S32)MAX_IMAGE_SIZE_DEFAULT);
mTexelsPerImage = (F32)fullwidth * fullheight;
}
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