358 lines
13 KiB
C++
358 lines
13 KiB
C++
/**
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* @file llimagegl.h
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* @brief Object for managing images and their textures
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*
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* $LicenseInfo:firstyear=2001&license=viewerlgpl$
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* Second Life Viewer Source Code
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* Copyright (C) 2010, Linden Research, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License only.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
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* $/LicenseInfo$
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*/
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#ifndef LL_LLIMAGEGL_H
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#define LL_LLIMAGEGL_H
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#include "llimage.h"
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#include "llgltypes.h"
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#include "llpointer.h"
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#include "llrefcount.h"
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#include "v2math.h"
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#include "llunits.h"
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#include "llrender.h"
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#define BYTES_TO_MEGA_BYTES(x) ((x) >> 20)
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#define MEGA_BYTES_TO_BYTES(x) ((x) << 20)
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//============================================================================
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class LLImageGL : public LLRefCount
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{
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friend class LLTexUnit;
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friend class GLTextureName;
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public:
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struct AllocationInfo;
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private:
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// These 2 functions replace glGenTextures() and glDeleteTextures()
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static void generateTextures(S32 numTextures, U32 *textures);
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static void deleteTextures(S32 numTextures, U32 *textures, const std::vector<AllocationInfo>& allocationData);
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static void texMemoryAllocated(const AllocationInfo& entry);
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static void texMemoryDeallocated(const AllocationInfo& entry);
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public:
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static void deleteDeadTextures();
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struct AllocationInfo
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{
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AllocationInfo(S32Bytes& _size, U8 _components, U32 _category) :
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size(_size), components(_components), category(_category)
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{}
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S32Bytes size;
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U8 components;
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U32 category;
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};
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// Singu Note:
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// The topology of GLImageGL is wrong. As a result, tex names are shared across multiple LLImageGL
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// instances. To avoid redundant glDelete calls gl tex names have been wrapped in GLTextureName,
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// which is refcounted via std::shared_ptr.
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class GLTextureNameInstance {
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public:
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GLTextureNameInstance(U32 size = 1) : mTexCount(size)
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{
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mTexNames.resize(mTexCount, 0);
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LLImageGL::generateTextures(1, mTexNames.data());
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}
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~GLTextureNameInstance()
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{
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LLImageGL::deleteTextures(1, mTexNames.data(), mAllocationData);
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}
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GLuint getTexName(U32 idx = 0) const
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{
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return mTexNames[idx];
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}
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void addAllocatedMemory(S32Bytes size, U8 components, U32 category)
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{
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mAllocationData.emplace_back(size, components, category);
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LLImageGL::texMemoryAllocated(mAllocationData.back());
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}
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const std::vector<AllocationInfo>& getAllocatedMemoryInfo() const
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{
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return mAllocationData;
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}
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private:
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const size_t mTexCount;
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std::vector<GLuint> mTexNames;
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std::vector<AllocationInfo> mAllocationData;
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};
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typedef std::shared_ptr<GLTextureNameInstance> GLTextureName;
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static GLTextureName createTextureName(U32 size = 0) {
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return std::make_shared<GLTextureNameInstance>();
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}
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// Size calculation
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static S32 dataFormatBits(S32 dataformat);
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static S32 dataFormatBytes(S32 dataformat, S32 width, S32 height);
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static S32 dataFormatComponents(S32 dataformat);
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BOOL updateBindStats(S32Bytes tex_mem) const ;
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F32 getTimePassedSinceLastBound();
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void forceUpdateBindStats(void) const;
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// needs to be called every frame
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static void updateStats(F32 current_time);
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// Save off / restore GL textures
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static void destroyGL(BOOL save_state = TRUE);
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static void restoreGL();
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static void dirtyTexOptions();
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// Sometimes called externally for textures not using LLImageGL (should go away...)
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static S32 updateBoundTexMem(const S32Bytes mem, const S32 ncomponents, S32 category) ;
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static bool checkSize(S32 width, S32 height);
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//for server side use only.
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// Not currently necessary for LLImageGL, but required in some derived classes,
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// so include for compatability
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static BOOL create(LLPointer<LLImageGL>& dest, BOOL usemipmaps = TRUE);
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static BOOL create(LLPointer<LLImageGL>& dest, U32 width, U32 height, U8 components, BOOL usemipmaps = TRUE);
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static BOOL create(LLPointer<LLImageGL>& dest, const LLImageRaw* imageraw, BOOL usemipmaps = TRUE);
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public:
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LLImageGL(BOOL usemipmaps = TRUE);
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LLImageGL(U32 width, U32 height, U8 components, BOOL usemipmaps = TRUE);
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LLImageGL(const LLImageRaw* imageraw, BOOL usemipmaps = TRUE);
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protected:
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virtual ~LLImageGL();
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void analyzeAlpha(const void* data_in, U32 w, U32 h);
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void calcAlphaChannelOffsetAndStride();
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public:
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virtual void dump(); // debugging info to llinfos
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void setSize(S32 width, S32 height, S32 ncomponents, S32 discard_level = -1);
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void setComponents(S32 ncomponents) { mComponents = (S8)ncomponents ;}
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void setAllowCompression(bool allow) { mAllowCompression = allow; }
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static void setManualImage(U32 target, S32 miplevel, S32 intformat, S32 width, S32 height, U32 pixformat, U32 pixtype, const void *pixels, bool allow_compression = true);
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BOOL createGLTexture() ;
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BOOL createGLTexture(S32 discard_level, const LLImageRaw* imageraw, GLTextureName* usename = nullptr, BOOL to_create = TRUE,
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S32 category = sMaxCategories-1);
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BOOL createGLTexture(S32 discard_level, const U8* data, BOOL data_hasmips = FALSE, GLTextureName* usename = nullptr);
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void setImage(const LLImageRaw* imageraw);
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void setImage(const U8* data_in, BOOL data_hasmips = FALSE);
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BOOL setSubImage(const LLImageRaw* imageraw, S32 x_pos, S32 y_pos, S32 width, S32 height, BOOL force_fast_update = FALSE);
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BOOL setSubImage(const U8* datap, S32 data_width, S32 data_height, S32 x_pos, S32 y_pos, S32 width, S32 height, BOOL force_fast_update = FALSE);
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BOOL setSubImageFromFrameBuffer(S32 fb_x, S32 fb_y, S32 x_pos, S32 y_pos, S32 width, S32 height);
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// Read back a raw image for this discard level, if it exists
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BOOL readBackRaw(S32 discard_level, LLImageRaw* imageraw, bool compressed_ok);
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void destroyGLTexture();
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void forceToInvalidateGLTexture();
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void setExplicitFormat(LLGLint internal_format, LLGLenum primary_format, LLGLenum type_format = 0, BOOL swap_bytes = FALSE);
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void setComponents(S8 ncomponents) { mComponents = ncomponents; }
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S32 getDiscardLevel() const { return mCurrentDiscardLevel; }
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S32 getMaxDiscardLevel() const { return mMaxDiscardLevel; }
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S32 getCurrentWidth() const { return mWidth ;}
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S32 getCurrentHeight() const { return mHeight ;}
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S32 getWidth(S32 discard_level = -1) const;
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S32 getHeight(S32 discard_level = -1) const;
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U8 getComponents() const { return mComponents; }
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S32 getBytes(S32 discard_level = -1) const;
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S32 getMipBytes(S32 discard_level = -1) const;
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BOOL getBoundRecently() const;
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BOOL isJustBound() const;
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LLGLenum getPrimaryFormat() const { return mFormatPrimary; }
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LLGLenum getFormatType() const { return mFormatType; }
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BOOL getHasGLTexture() const { return mTexName != nullptr; }
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LLGLuint getTexName() const { return mTexName ? mTexName->getTexName() : 0; }
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BOOL getIsAlphaMask(const F32 max_rmse, const F32 max_mid) const { return mNeedsAlphaAndPickMask && (max_rmse < 0.f ? (bool)mIsMask : (mMaskRMSE <= max_rmse && mMaskMidPercentile <= max_mid)); }
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BOOL getIsResident(BOOL test_now = FALSE); // not const
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void setTarget(const LLGLenum target, const LLTexUnit::eTextureType bind_target);
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LLTexUnit::eTextureType getTarget(void) const { return mBindTarget; }
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bool isGLTextureCreated(void) const { return mGLTextureCreated ; }
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void setGLTextureCreated (bool initialized) { mGLTextureCreated = initialized; }
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BOOL getUseMipMaps() const { return mUseMipMaps; }
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void setUseMipMaps(BOOL usemips) { mUseMipMaps = usemips; }
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void updatePickMask(S32 width, S32 height, const U8* data_in);
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BOOL getMask(const LLVector2 &tc);
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void checkTexSize(bool forced = false) const ;
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// Sets the addressing mode used to sample the texture
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// (such as wrapping, mirrored wrapping, and clamp)
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// Note: this actually gets set the next time the texture is bound.
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void setAddressMode(LLTexUnit::eTextureAddressMode mode);
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LLTexUnit::eTextureAddressMode getAddressMode(void) const { return mAddressMode; }
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// Sets the filtering options used to sample the texture
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// (such as point sampling, bilinear interpolation, mipmapping, and anisotropic filtering)
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// Note: this actually gets set the next time the texture is bound.
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void setFilteringOption(LLTexUnit::eTextureFilterOptions option);
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LLTexUnit::eTextureFilterOptions getFilteringOption(void) const { return mFilterOption; }
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LLGLenum getTexTarget()const { return mTarget ;}
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void init(BOOL usemipmaps);
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virtual void cleanup(); // Clean up the LLImageGL so it can be reinitialized. Be careful when using this in derived class destructors
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void setNeedsAlphaAndPickMask(BOOL need_mask);
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public:
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// Various GL/Rendering options
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S32Bytes mTextureMemory;
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mutable F32 mLastBindTime; // last time this was bound, by discard level
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private:
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U32 createPickMask(S32 pWidth, S32 pHeight);
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void freePickMask();
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LLPointer<LLImageRaw> mSaveData; // used for destroyGL/restoreGL
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S32 mSaveDiscardLevel;
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U8* mPickMask; //downsampled bitmap approximation of alpha channel. NULL if no alpha channel
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U16 mPickMaskWidth;
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U16 mPickMaskHeight;
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S8 mUseMipMaps;
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S8 mHasExplicitFormat; // If false (default), GL format is f(mComponents)
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S8 mAutoGenMips;
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BOOL mIsMask;
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F32 mMaskRMSE;
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F32 mMaskMidPercentile;
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BOOL mNeedsAlphaAndPickMask;
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S8 mAlphaStride ;
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S8 mAlphaOffset ;
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bool mGLTextureCreated ;
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GLTextureName mTexName;
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U16 mWidth;
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U16 mHeight;
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S8 mCurrentDiscardLevel;
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bool mAllowCompression;
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bool mIsCompressed = false;
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protected:
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LLGLenum mTarget; // Normally GL_TEXTURE2D, sometimes something else (ex. cube maps)
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LLTexUnit::eTextureType mBindTarget; // Normally TT_TEXTURE, sometimes something else (ex. cube maps)
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bool mHasMipMaps;
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S32 mMipLevels;
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LLGLboolean mIsResident;
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S8 mComponents;
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S8 mMaxDiscardLevel;
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bool mTexOptionsDirty;
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LLTexUnit::eTextureAddressMode mAddressMode; // Defaults to TAM_WRAP
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LLTexUnit::eTextureFilterOptions mFilterOption; // Defaults to TFO_TRILINEAR
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LLGLint mFormatInternal; // = GL internalformat
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LLGLenum mFormatPrimary; // = GL format (pixel data format)
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LLGLenum mFormatType;
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BOOL mFormatSwapBytes;// if true, use glPixelStorei(GL_UNPACK_SWAP_BYTES, 1)
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// STATICS
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public:
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static std::set<LLImageGL*> sImageList;
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static S32 sCount;
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static F32 sLastFrameTime;
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// Global memory statistics
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static S64Bytes sGlobalTextureMemory; // Tracks main memory texmem
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static S64Bytes sBoundTextureMemory; // Tracks bound texmem for last completed frame
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static S64Bytes sCurBoundTextureMemory; // Tracks bound texmem for current frame
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static U32 sBindCount; // Tracks number of texture binds for current frame
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static U32 sUniqueCount; // Tracks number of unique texture binds for current frame
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static BOOL sGlobalUseAnisotropic;
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static LLImageGL* sDefaultGLTexture ;
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static bool sCompressTextures; //use GL texture compression
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#if DEBUG_MISS
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BOOL mMissed; // Missed on last bind?
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BOOL getMissed() const { return mMissed; };
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#else
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BOOL getMissed() const { return FALSE; };
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#endif
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public:
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static void initClass(S32 num_catagories) ;
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static void cleanupClass() ;
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private:
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static S32 sMaxCategories ;
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//the flag to allow to call readBackRaw(...).
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//can be removed if we do not use that function at all.
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static BOOL sAllowReadBackRaw ;
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//
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// ****************************************************************************************************
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//The below for texture auditing use only
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// ****************************************************************************************************
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private:
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S32 mCategory ;
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public:
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void setCategory(S32 category) ;
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S32 getCategory()const {return mCategory ;}
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//for debug use: show texture size distribution
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//----------------------------------------
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static LLPointer<LLImageGL> sHighlightTexturep; //default texture to replace normal textures
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static std::vector<S32> sTextureLoadedCounter ;
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static std::vector<S32> sTextureBoundCounter ;
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static std::vector<S32> sTextureCurBoundCounter ;
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static S32 sCurTexSizeBar ;
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static S32 sCurTexPickSize ;
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static void setHighlightTexture(S32 category) ;
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static S32 getTextureCounterIndex(U32 val) ;
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static void incTextureCounter(S32Bytes val, S32 ncomponents, S32 category) ;
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static void decTextureCounter(S32Bytes val, S32 ncomponents, S32 category) ;
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static void setCurTexSizebar(S32 index, BOOL set_pick_size = TRUE) ;
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static void resetCurTexSizebar();
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//----------------------------------------
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//for debug use: show texture category distribution
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//----------------------------------------
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static std::vector<S64Bytes> sTextureMemByCategory;
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static std::vector<S64Bytes> sTextureMemByCategoryBound ;
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static std::vector<S64Bytes> sTextureCurMemByCategoryBound ;
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//----------------------------------------
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// ****************************************************************************************************
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//End of definitions for texture auditing use only
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// ****************************************************************************************************
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};
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extern BOOL gAuditTexture;
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#endif // LL_LLIMAGEGL_H
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