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/**
* @file llgltexture.h
* @brief Object for managing opengl textures
*
* $LicenseInfo:firstyear=2012&license=viewerlgpl$
* 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
* $/LicenseInfo$
*/
#ifndef LL_GL_TEXTURE_H
#define LL_GL_TEXTURE_H
#include "lltexture.h"
#include "llgl.h"
class LLImageRaw;
//
//this the parent for the class LLViewerTexture
//through the following virtual functions, the class LLViewerTexture can be reached from /llrender.
//
class LLGLTexture : public LLTexture
{
public:
enum
{
MAX_IMAGE_SIZE_DEFAULT = 2048,
INVALID_DISCARD_LEVEL = 0x7fff
};
enum EBoostLevel
{
BOOST_NONE = 0,
BOOST_AVATAR ,
BOOST_AVATAR_BAKED ,
BOOST_SCULPTED ,
BOOST_TERRAIN , // Needed for minimap generation for now. Lower than BOOST_HIGH so the texture stats don't get forced, i.e. texture stats are manually managed by minimap/terrain instead.
BOOST_HIGH = 10,
BOOST_BUMP ,
BOOST_UNUSED_1 , // Placeholder to avoid disrupting habits around texture debug
BOOST_SELECTED ,
BOOST_AVATAR_BAKED_SELF ,
BOOST_AVATAR_SELF , // needed for baking avatar
BOOST_SUPER_HIGH , //textures higher than this need to be downloaded at the required resolution without delay.
BOOST_HUD ,
BOOST_ICON ,
BOOST_THUMBNAIL ,
BOOST_UI ,
BOOST_PREVIEW ,
BOOST_MAP ,
BOOST_MAP_VISIBLE ,
BOOST_MAX_LEVEL,
//other texture Categories
LOCAL = BOOST_MAX_LEVEL,
AVATAR_SCRATCH_TEX,
DYNAMIC_TEX,
MEDIA,
ATLAS,
OTHER,
MAX_GL_IMAGE_CATEGORY
};
typedef enum
{
DELETED = 0, //removed from memory
DELETION_CANDIDATE, //ready to be removed from memory
INACTIVE, //not be used for the last certain period (i.e., 30 seconds).
ACTIVE, //just being used, can become inactive if not being used for a certain time (10 seconds).
NO_DELETE = 99 //stay in memory, can not be removed.
} LLGLTextureState;
protected:
virtual ~LLGLTexture();
LOG_CLASS(LLGLTexture);
public:
LLGLTexture(bool usemipmaps = true);
LLGLTexture(const LLImageRaw* raw, bool usemipmaps) ;
LLGLTexture(const U32 width, const U32 height, const U8 components, bool usemipmaps) ;
virtual void dump(); // debug info to LL_INFOS()
virtual const LLUUID& getID() const;
void setBoostLevel(S32 level);
S32 getBoostLevel() { return mBoostLevel; }
S32 getFullWidth() const { return mFullWidth; }
S32 getFullHeight() const { return mFullHeight; }
void generateGLTexture() ;
void destroyGLTexture() ;
//---------------------------------------------------------------------------------------------
//functions to access LLImageGL
//---------------------------------------------------------------------------------------------
/*virtual*/S32 getWidth(S32 discard_level = -1) const;
/*virtual*/S32 getHeight(S32 discard_level = -1) const;
bool hasGLTexture() const ;
LLGLuint getTexName() const ;
bool createGLTexture() ;
// Create a GL Texture from an image raw
// discard_level - mip level, 0 for highest resultion mip
// imageraw - the image to copy from
// usename - explicit GL name override
// to_create - set to false to force gl texture to not be created
// category - LLGLTexture category for this LLGLTexture
// defer_copy - set to true to allocate GL texture but NOT initialize with imageraw data
// tex_name - if not null, will be set to the GL name of the texture created
bool createGLTexture(S32 discard_level, const LLImageRaw* imageraw, S32 usename = 0, bool to_create = true, S32 category = LLGLTexture::OTHER, bool defer_copy = false, LLGLuint* tex_name = nullptr);
void setFilteringOption(LLTexUnit::eTextureFilterOptions option);
void setExplicitFormat(LLGLint internal_format, LLGLenum primary_format, LLGLenum type_format = 0, bool swap_bytes = false);
void setAddressMode(LLTexUnit::eTextureAddressMode mode);
bool setSubImage(const LLImageRaw* imageraw, S32 x_pos, S32 y_pos, S32 width, S32 height, LLGLuint use_name = 0);
bool setSubImage(const U8* datap, S32 data_width, S32 data_height, S32 x_pos, S32 y_pos, S32 width, S32 height, LLGLuint use_name = 0);
void setGLTextureCreated (bool initialized);
void setCategory(S32 category) ;
void setTexName(LLGLuint); // for forcing w/ externally created textures only
void setTarget(const LLGLenum target, const LLTexUnit::eTextureType bind_target);
LLTexUnit::eTextureAddressMode getAddressMode(void) const ;
S32 getMaxDiscardLevel() const;
S32 getDiscardLevel() const;
S8 getComponents() const;
bool getBoundRecently() const;
S32Bytes getTextureMemory() const ;
LLGLenum getPrimaryFormat() const;
bool getIsAlphaMask() const ;
LLTexUnit::eTextureType getTarget(void) const ;
bool getMask(const LLVector2 &tc);
F32 getTimePassedSinceLastBound();
bool getMissed() const ;
bool isJustBound()const ;
void forceUpdateBindStats(void) const;
U32 getTexelsInAtlas() const ;
U32 getTexelsInGLTexture() const ;
bool isGLTextureCreated() const ;
S32 getDiscardLevelInAtlas() const ;
LLGLTextureState getTextureState() const { return mTextureState; }
//---------------------------------------------------------------------------------------------
//end of functions to access LLImageGL
//---------------------------------------------------------------------------------------------
//-----------------
/*virtual*/ void setActive() ;
void forceActive() ;
void setNoDelete() ;
void dontDiscard() { mDontDiscard = 1; mTextureState = NO_DELETE; }
bool getDontDiscard() const { return mDontDiscard; }
//-----------------
private:
void cleanup();
void init();
protected:
void setTexelsPerImage();
public:
/*virtual*/ LLImageGL* getGLTexture() const ;
protected:
S32 mBoostLevel; // enum describing priority level
U32 mFullWidth;
U32 mFullHeight;
bool mUseMipMaps;
S8 mComponents;
U32 mTexelsPerImage; // Texels per image.
mutable S8 mNeedsGLTexture;
//GL texture
LLPointer<LLImageGL> mGLTexturep ;
S8 mDontDiscard; // Keep full res version of this image (for UI, etc)
protected:
LLGLTextureState mTextureState ;
};
#endif // LL_GL_TEXTURE_H
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