Split gl-specific LLViewerTexture implementation into llrender/LLGLViewerTexture

1 files changed, 396 insertions, 0 deletions

diff --git a/indra/llrender/llgltexture.cpp b/indra/llrender/llgltexture.cpp
new file mode 100644
index 0000000000..d06ed5e57b
--- /dev/null
+++ b/indra/llrender/llgltexture.cpp
@@ -0,0 +1,396 @@
+/** 
+ * @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)
+		{
+			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() ;
+}
+
+S32 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;
+}
+
+