lltextureview.cpp

Go to the documentation of this file.

#include "llviewerprecompiledheaders.h"

#include <set>

#include "lltextureview.h"

#include "llrect.h"
#include "llerror.h"
#include "lllfsthread.h"
#include "llui.h"
#include "llimageworker.h"

#include "llhoverview.h"
#include "llselectmgr.h"
#include "lltexlayer.h"
#include "lltexturecache.h"
#include "lltexturefetch.h"
#include "llviewerobject.h"
#include "llviewerimage.h"
#include "llviewerimagelist.h"
#include "viewer.h"

extern F32 texmem_lower_bound_scale;

LLTextureView *gTextureView = NULL;

//static
std::set<LLViewerImage*> LLTextureView::sDebugImages;


static LLString title_string1a("Tex UUID Area  DDis(Req)  DecodePri(Fetch)     [download]        pk/max");
static LLString title_string1b("Tex UUID Area  DDis(Req)  Fetch(DecodePri)     [download]        pk/max");
static LLString title_string2("State");
static LLString title_string3("Pkt Bnd");
static LLString title_string4("  W x H (Dis) Mem");

static S32 title_x1 = 0;
static S32 title_x2 = 440;
static S32 title_x3 = title_x2 + 40;
static S32 title_x4 = title_x3 + 50;
static S32 texture_bar_height = 8;


class LLTextureBar : public LLView
{
public:
        LLPointer<LLViewerImage> mImagep;
        S32 mHilite;

public:
        LLTextureBar(const std::string& name, const LLRect& r, LLTextureView* texview)
                : LLView(name, r, FALSE),
                  mHilite(0),
                  mTextureView(texview)
        {
        }

        virtual EWidgetType getWidgetType() const { return WIDGET_TYPE_TEXTURE_BAR; }
        virtual LLString getWidgetTag() const { return LL_TEXTURE_BAR_TAG; }

        virtual void draw();
        virtual BOOL handleMouseDown(S32 x, S32 y, MASK mask);
        virtual LLRect getRequiredRect();       // Return the height of this object, given the set options.

// Used for sorting
        struct sort
        {
                bool operator()(const LLView* i1, const LLView* i2)
                {
                        LLTextureBar* bar1p = (LLTextureBar*)i1;
                        LLTextureBar* bar2p = (LLTextureBar*)i2;
                        LLViewerImage *i1p = bar1p->mImagep;
                        LLViewerImage *i2p = bar2p->mImagep;
                        F32 pri1 = i1p->getDecodePriority(); // i1p->mRequestedDownloadPriority
                        F32 pri2 = i2p->getDecodePriority(); // i2p->mRequestedDownloadPriority
                        if (pri1 > pri2)
                                return true;
                        else if (pri2 > pri1)
                                return false;
                        else
                                return i1p->getID() < i2p->getID();
                }
        };

        struct sort_fetch
        {
                bool operator()(const LLView* i1, const LLView* i2)
                {
                        LLTextureBar* bar1p = (LLTextureBar*)i1;
                        LLTextureBar* bar2p = (LLTextureBar*)i2;
                        LLViewerImage *i1p = bar1p->mImagep;
                        LLViewerImage *i2p = bar2p->mImagep;
                        U32 pri1 = i1p->mFetchPriority;
                        U32 pri2 = i2p->mFetchPriority;
                        if (pri1 > pri2)
                                return true;
                        else if (pri2 > pri1)
                                return false;
                        else
                                return i1p->getID() < i2p->getID();
                }
        };      
private:
        LLTextureView* mTextureView;
};

void LLTextureBar::draw()
{
        if (!mImagep)
        {
                return;
        }

        LLColor4 color;
        if (mImagep->getID() == gTextureFetch->mDebugID)
        {
                color = LLColor4::cyan2;
        }
        else if (mHilite)
        {
                S32 idx = llclamp(mHilite,1,3);
                if (idx==1) color = LLColor4::orange;
                else if (idx==2) color = LLColor4::yellow;
                else color = LLColor4::pink2;
        }
        else if (mImagep->mDontDiscard)
        {
                color = LLColor4::green4;
        }
        else if (mImagep->getBoostLevel())
        {
                color = LLColor4::magenta;
        }
        else if (mImagep->getDecodePriority() == 0.0f)
        {
                color = LLColor4::grey; color[VALPHA] = .7f;
        }
        else
        {
                color = LLColor4::white; color[VALPHA] = .7f;
        }

        // We need to draw:
        // The texture UUID or name
        // The progress bar for the texture, highlighted if it's being download
        // Various numerical stats.
        char tex_str[256];
        S32 left, right;
        S32 top = 0;
        S32 bottom = top + 6;
        LLColor4 clr;

        LLGLSUIDefault gls_ui;
        
        // Name, pixel_area, requested pixel area, decode priority
        char uuid_str[255];
        mImagep->mID.toString(uuid_str);
        uuid_str[8] = 0;
        if (mTextureView->mOrderFetch)
        {
                sprintf(tex_str, "%s %7.0f %d(%d) 0x%08x(%8.0f)",
                                uuid_str,
                                mImagep->mMaxVirtualSize,
                                mImagep->mDesiredDiscardLevel,
                                mImagep->mRequestedDiscardLevel,
                                mImagep->mFetchPriority,
                                mImagep->getDecodePriority());
        }
        else
        {
                sprintf(tex_str, "%s %7.0f %d(%d) %8.0f(0x%08x)",
                                uuid_str,
                                mImagep->mMaxVirtualSize,
                                mImagep->mDesiredDiscardLevel,
                                mImagep->mRequestedDiscardLevel,
                                mImagep->getDecodePriority(),
                                mImagep->mFetchPriority);
        }

        LLFontGL::sMonospace->renderUTF8(tex_str, 0, title_x1, mRect.getHeight(),
                                                                         color, LLFontGL::LEFT, LLFontGL::TOP);

        // State
        // Hack: mirrored from lltexturefetch.cpp
        struct { const char* desc; LLColor4 color; } fetch_state_desc[] = {
                { "---", LLColor4::red },       // INVALID
                { "INI", LLColor4::white },     // INIT
                { "DSK", LLColor4::cyan },      // LOAD_FROM_TEXTURE_CACHE
                { "DSK", LLColor4::blue },      // CACHE_POST
                { "NET", LLColor4::green },     // LOAD_FROM_NETWORK
                { "SIM", LLColor4::green },     // LOAD_FROM_SIMULATOR
                { "URL", LLColor4::green2 },// LOAD_FROM_HTTP_GET_URL
                { "HTP", LLColor4::green },     // LOAD_FROM_HTTP_GET_DATA
                { "DEC", LLColor4::yellow },// DECODE_IMAGE
                { "DEC", LLColor4::yellow },// DECODE_IMAGE_UPDATE
                { "WRT", LLColor4::purple },// WRITE_TO_CACHE
                { "WRT", LLColor4::orange },// WAIT_ON_WRITE
                { "END", LLColor4::red },   // DONE
#define LAST_STATE 12
                { "CRE", LLColor4::magenta }, // LAST_STATE+1
                { "FUL", LLColor4::green }, // LAST_STATE+2
                { "BAD", LLColor4::red }, // LAST_STATE+3
                { "MIS", LLColor4::red }, // LAST_STATE+4
                { "---", LLColor4::white }, // LAST_STATE+5
        };
        const S32 fetch_state_desc_size = (S32)(sizeof(fetch_state_desc)/sizeof(fetch_state_desc[0]));
        S32 state =
                mImagep->mNeedsCreateTexture ? LAST_STATE+1 :
                mImagep->mFullyLoaded ? LAST_STATE+2 :
                mImagep->mMinDiscardLevel > 0 ? LAST_STATE+3 :
                mImagep->mIsMissingAsset ? LAST_STATE+4 :
                !mImagep->mIsFetching ? LAST_STATE+5 :
                mImagep->mFetchState;
        state = llclamp(state,0,fetch_state_desc_size-1);

        LLFontGL::sMonospace->renderUTF8(fetch_state_desc[state].desc, 0, title_x2, mRect.getHeight(),
                                                                         fetch_state_desc[state].color,
                                                                         LLFontGL::LEFT, LLFontGL::TOP);
        LLGLSNoTexture gls_no_texture;

        // Draw the progress bar.
        S32 bar_width = 100;
        S32 bar_left = 280;
        left = bar_left;
        right = left + bar_width;

        glColor4f(0.f, 0.f, 0.f, 0.75f);
        gl_rect_2d(left, top, right, bottom);

        F32 data_progress = mImagep->mDownloadProgress;
        
        if (data_progress > 0.0f)
        {
                // Downloaded bytes
                right = left + llfloor(data_progress * (F32)bar_width);
                if (right > left)
                {
                        glColor4f(0.f, 0.f, 1.f, 0.75f);
                        gl_rect_2d(left, top, right, bottom);
                }
        }

        S32 pip_width = 6;
        S32 pip_space = 14;
        S32 pip_x = title_x3 + pip_space/2;
        
        // Draw the packet pip
        F32 last_event = mImagep->mLastPacketTimer.getElapsedTimeF32();
        if (last_event < 1.f)
        {
                clr = LLColor4::white; 
        }
        else
        {
                last_event = mImagep->mRequestDeltaTime;
                if (last_event < 1.f)
                {
                        clr = LLColor4::green;
                }
                else
                {
                        last_event = mImagep->mFetchDeltaTime;
                        if (last_event < 1.f)
                        {
                                clr = LLColor4::yellow;
                        }
                }
        }
        if (last_event < 1.f)
        {
                clr.setAlpha(1.f - last_event);
                glColor4fv(clr.mV);
                gl_rect_2d(pip_x, top, pip_x + pip_width, bottom);
        }
        pip_x += pip_width + pip_space;

        // we don't want to show bind/resident pips for textures using the default texture
        if (mImagep->getHasGLTexture())
        {
                // Draw the bound pip
                last_event = mImagep->sLastFrameTime - mImagep->mLastBindTime;
                if (last_event < 1.f)
                {
                        clr = mImagep->getMissed() ? LLColor4::red : LLColor4::magenta1;
                        clr.setAlpha(1.f - last_event);
                        glColor4fv(clr.mV);
                        gl_rect_2d(pip_x, top, pip_x + pip_width, bottom);
                }
        }
        pip_x += pip_width + pip_space;

        
        {
                LLGLSUIDefault gls_ui;
                // draw the packet data
//              {
//                      LLString num_str = llformat("%3d/%3d", mImagep->mLastPacket+1, mImagep->mPackets);
//                      LLFontGL::sMonospace->renderUTF8(num_str, 0, bar_left + 100, mRect.getHeight(), color,
//                                                                                       LLFontGL::LEFT, LLFontGL::TOP);
//              }
                
                // draw the image size at the end
                {
                        LLString num_str = llformat("%3dx%3d (%d) %7d", mImagep->getWidth(), mImagep->getHeight(),
                                                                                mImagep->getDiscardLevel(), mImagep->mTextureMemory);
                        LLFontGL::sMonospace->renderUTF8(num_str, 0, title_x4, mRect.getHeight(), color,
                                                                                        LLFontGL::LEFT, LLFontGL::TOP);
                }
        }

}

BOOL LLTextureBar::handleMouseDown(S32 x, S32 y, MASK mask)
{
        if ((mask & (MASK_CONTROL|MASK_SHIFT|MASK_ALT)) == MASK_ALT)
        {
                gTextureFetch->mDebugID = mImagep->getID();
                return TRUE;
        }
        return LLView::handleMouseDown(x,y,mask);
}

LLRect LLTextureBar::getRequiredRect()
{
        LLRect rect;

        rect.mTop = texture_bar_height;

        return rect;
}


class LLGLTexMemBar : public LLView
{
public:
        LLGLTexMemBar(const std::string& name, LLTextureView* texview)
                : LLView(name, FALSE),
                  mTextureView(texview)
        {
                S32 line_height = (S32)(LLFontGL::sMonospace->getLineHeight() + .5f);
                setRect(LLRect(0,0,100,line_height * 4));
                updateRect();
        }

        virtual EWidgetType getWidgetType() const { return WIDGET_TYPE_TEX_MEM_BAR; };
        virtual LLString getWidgetTag() const { return LL_GL_TEX_MEM_BAR_TAG; };

        virtual void draw();    
        virtual BOOL handleMouseDown(S32 x, S32 y, MASK mask);
        virtual LLRect getRequiredRect();       // Return the height of this object, given the set options.

private:
        LLTextureView* mTextureView;
};

void LLGLTexMemBar::draw()
{
        S32 bound_mem = LLViewerImage::sBoundTextureMemory;
        S32 max_bound_mem = LLViewerImage::sMaxBoundTextureMem;
        S32 total_mem = LLViewerImage::sTotalTextureMemory;
        S32 max_total_mem = LLViewerImage::sMaxTotalTextureMem;
        F32 discard_bias = LLViewerImage::sDesiredDiscardBias;
        S32 line_height = (S32)(LLFontGL::sMonospace->getLineHeight() + .5f);
        
        //----------------------------------------------------------------------------
        LLGLSUIDefault gls_ui;
        F32 text_color[] = {1.f, 1.f, 1.f, 0.75f};
        
        std::string text;
        text = llformat("GL Tot: %d/%d MB Bound: %d/%d MB Discard Bias: %.2f",
                                        total_mem/(1024*1024),
                                        max_total_mem/(1024*1024),
                                        bound_mem/(1024*1024),
                                        max_bound_mem/(1024*1024),
                                        discard_bias);

        LLFontGL::sMonospace->renderUTF8(text, 0, 0, line_height*3,
                                                                         text_color, LLFontGL::LEFT, LLFontGL::TOP);

        //----------------------------------------------------------------------------
        S32 bar_left = 380;
        S32 bar_width = 200;
        S32 top = line_height*3 - 2;
        S32 bottom = top - 6;
        S32 left = bar_left;
        S32 right = left + bar_width;

        F32 bar_scale = (F32)bar_width / (max_bound_mem * 1.5f);
        
        LLGLSNoTexture gls_no_texture;
        
        glColor4f(0.5f, 0.5f, 0.5f, 0.75f);
        gl_rect_2d(left, top, right, bottom);

        
        left = bar_left;
        right = left + llfloor(bound_mem * bar_scale);
        if (bound_mem < llfloor(max_bound_mem * texmem_lower_bound_scale))
        {
                glColor4f(0.f, 1.f, 0.f, 0.75f);
        }
        else if (bound_mem < max_bound_mem)
        {
                glColor4f(1.f, 1.f, 0.f, 0.75f);
        }
        else
        {
                glColor4f(1.f, 0.f, 0.f, 0.75f);
        }
        gl_rect_2d(left, top, right, bottom);

        bar_scale = (F32)bar_width / (max_total_mem * 1.5f);
        
        top = bottom - 2;
        bottom = top - 6;
        left = bar_left;
        right = left + llfloor(total_mem * bar_scale);
        if (total_mem < llfloor(max_total_mem * texmem_lower_bound_scale))
        {
                glColor4f(0.f, 1.f, 0.f, 0.75f);
        }
        else if (total_mem < max_total_mem)
        {
                glColor4f(1.f, 1.f, 0.f, 0.75f);
        }
        else
        {
                glColor4f(1.f, 0.f, 0.f, 0.75f);
        }
        gl_rect_2d(left, top, right, bottom);

        //----------------------------------------------------------------------------

        LLGLEnable tex(GL_TEXTURE_2D);
        
        text = llformat("Textures: Count: %d Fetch: %d(%d) Pkts:%d(%d) Cache R/W: %d/%d LFS:%d IW:%d(%d) RAW:%d",
                                        gImageList.getNumImages(),
                                        gTextureFetch->getNumRequests(), gTextureFetch->getNumDeletes(),
                                        gTextureFetch->mPacketCount, gTextureFetch->mBadPacketCount, 
                                        gTextureCache->getNumReads(), gTextureCache->getNumWrites(),
                                        LLLFSThread::sLocal->getPending(),
                                        LLImageWorker::sCount, LLImageWorker::getWorkerThread()->getNumDeletes(),
                                        LLImageRaw::sRawImageCount);

        LLFontGL::sMonospace->renderUTF8(text, 0, 0, line_height*2,
                                                                         text_color, LLFontGL::LEFT, LLFontGL::TOP);
        
        S32 dx1 = 0;
        if (gTextureFetch->mDebugPause)
        {
                LLFontGL::sMonospace->renderUTF8("!", 0, title_x1, line_height,
                                                                                 text_color, LLFontGL::LEFT, LLFontGL::TOP);
                dx1 += 8;
        }
        if (mTextureView->mFreezeView)
        {
                LLFontGL::sMonospace->renderUTF8("*", 0, title_x1, line_height,
                                                                                 text_color, LLFontGL::LEFT, LLFontGL::TOP);
                dx1 += 8;
        }
        if (mTextureView->mOrderFetch)
        {
                LLFontGL::sMonospace->renderUTF8(title_string1b, 0, title_x1+dx1, line_height,
                                                                                 text_color, LLFontGL::LEFT, LLFontGL::TOP);
        }
        else
        {       
                LLFontGL::sMonospace->renderUTF8(title_string1a, 0, title_x1+dx1, line_height,
                                                                                 text_color, LLFontGL::LEFT, LLFontGL::TOP);
        }
        
        LLFontGL::sMonospace->renderUTF8(title_string2, 0, title_x2, line_height,
                                                                         text_color, LLFontGL::LEFT, LLFontGL::TOP);

        LLFontGL::sMonospace->renderUTF8(title_string3, 0, title_x3, line_height,
                                                                         text_color, LLFontGL::LEFT, LLFontGL::TOP);

        LLFontGL::sMonospace->renderUTF8(title_string4, 0, title_x4, line_height,
                                                                         text_color, LLFontGL::LEFT, LLFontGL::TOP);
}

BOOL LLGLTexMemBar::handleMouseDown(S32 x, S32 y, MASK mask)
{
        return FALSE;
}

LLRect LLGLTexMemBar::getRequiredRect()
{
        LLRect rect;
        rect.mTop = 8;
        return rect;
}


LLTextureView::LLTextureView(const std::string& name, const LLRect& rect)
        :       LLContainerView(name, rect),
                mFreezeView(FALSE),
                mOrderFetch(FALSE),
                mPrintList(FALSE),
                mNumTextureBars(0)
{
        setVisible(FALSE);
        
        setDisplayChildren(TRUE);
        mGLTexMemBar = 0;
}

LLTextureView::~LLTextureView()
{
        // Children all cleaned up by default view destructor.
        delete mGLTexMemBar;
        mGLTexMemBar = 0;
}

EWidgetType LLTextureView::getWidgetType() const
{
        return WIDGET_TYPE_TEXTURE_VIEW;
}

LLString LLTextureView::getWidgetTag() const
{
        return LL_TEXTURE_VIEW_TAG;
}


typedef std::pair<F32,LLViewerImage*> decode_pair_t;
struct compare_decode_pair
{
        bool operator()(const decode_pair_t& a, const decode_pair_t& b)
        {
                return a.first > b.first;
        }
};

void LLTextureView::draw()
{
        if (!mFreezeView)
        {
//              LLViewerObject *objectp;
//              S32 te;

                for_each(mTextureBars.begin(), mTextureBars.end(), DeletePointer());
                mTextureBars.clear();
        
                delete mGLTexMemBar;
                mGLTexMemBar = 0;
        
                typedef std::multiset<decode_pair_t, compare_decode_pair > display_list_t;
                display_list_t display_image_list;
        
                if (mPrintList)
                {
                        llinfos << "ID\tMEM\tBOOST\tPRI\tWIDTH\tHEIGHT\tDISCARD" << llendl;
                }
        
                for (LLViewerImageList::image_priority_list_t::iterator iter = gImageList.mImageList.begin();
                         iter != gImageList.mImageList.end(); )
                {
                        LLPointer<LLViewerImage> imagep = *iter++;

                        S32 cur_discard = imagep->getDiscardLevel();
                        S32 desired_discard = imagep->mDesiredDiscardLevel;
                        
                        if (mPrintList)
                        {
                                llinfos << imagep->getID()
                                                << "\t" <<  imagep->mTextureMemory
                                                << "\t" << imagep->getBoostLevel()
                                                << "\t" << imagep->getDecodePriority()
                                                << "\t" << imagep->getWidth()
                                                << "\t" << imagep->getHeight()
                                                << "\t" << cur_discard
                                                << llendl;
                        }
                
#if 0
                        if (imagep->getDontDiscard())
                        {
                                continue;
                        }

                        if (imagep->isMissingAsset())
                        {
                                continue;
                        }
#endif

#define HIGH_PRIORITY 100000000.f
                        F32 pri;
                        if (mOrderFetch)
                        {
                                pri = ((F32)imagep->mFetchPriority)/256.f;
                        }
                        else
                        {
                                pri = imagep->getDecodePriority();
                        }
                        
                        if (sDebugImages.find(imagep) != sDebugImages.end())
                        {
                                pri += 4*HIGH_PRIORITY;
                        }

                        if (!mOrderFetch)
                        {
#if 1
                        if (pri < HIGH_PRIORITY && gSelectMgr)
                        {
                                struct f : public LLSelectedTEFunctor
                                {
                                        LLViewerImage* mImage;
                                        f(LLViewerImage* image) : mImage(image) {}
                                        virtual bool apply(LLViewerObject* object, S32 te)
                                        {
                                                return (mImage == object->getTEImage(te));
                                        }
                                } func(imagep);
                                const bool firstonly = true;
                                bool match = gSelectMgr->getSelection()->applyToTEs(&func, firstonly);
                                if (match)
                                {
                                        pri += 3*HIGH_PRIORITY;
                                }
                        }
#endif
#if 1
                        if (pri < HIGH_PRIORITY && (cur_discard< 0 || desired_discard < cur_discard))
                        {
                                LLViewerObject *objectp = gHoverView->getLastHoverObject();
                                if (objectp)
                                {
                                        S32 tex_count = objectp->getNumTEs();
                                        for (S32 i = 0; i < tex_count; i++)
                                        {
                                                if (imagep == objectp->getTEImage(i))
                                                {
                                                        pri += 2*HIGH_PRIORITY;
                                                        break;
                                                }
                                        }
                                }
                        }
#endif
#if 1
                        if (pri > 0.f && pri < HIGH_PRIORITY)
                        {
                                if (imagep->mLastPacketTimer.getElapsedTimeF32() < 1.f ||
                                        imagep->mFetchDeltaTime < 0.25f)
                                {
                                        pri += 1*HIGH_PRIORITY;
                                }
                        }
#endif
                        }
                        
                        if (pri > 0.0f)
                        {
                                display_image_list.insert(std::make_pair(pri, imagep));
                        }
                }
                
                if (mPrintList)
                {
                        mPrintList = FALSE;
                }
                
                static S32 max_count = 50;
                S32 count = 0;
                for (display_list_t::iterator iter = display_image_list.begin();
                         iter != display_image_list.end(); iter++)
                {
                        LLViewerImage* imagep = iter->second;
                        S32 hilite = 0;
                        F32 pri = iter->first;
                        if (pri >= 1 * HIGH_PRIORITY)
                        {
                                hilite = (S32)((pri+1) / HIGH_PRIORITY) - 1;
                        }
                        if ((hilite || count < max_count-10) && (count < max_count))
                        {
                                if (addBar(imagep, hilite))
                                {
                                        count++;
                                }
                        }
                }

                if (mOrderFetch)
                        sortChildren(LLTextureBar::sort_fetch());
                else
                        sortChildren(LLTextureBar::sort());

                mGLTexMemBar = new LLGLTexMemBar("gl texmem bar", this);
                addChild(mGLTexMemBar);
        
                reshape(mRect.getWidth(), mRect.getHeight(), TRUE);

                /*
                  count = gImageList.getNumImages();
                  char info_string[512];
                  sprintf(info_string, "Global Info:\nTexture Count: %d", count);
                  mInfoTextp->setText(info_string);
                */


                for (child_list_const_iter_t child_iter = getChildList()->begin();
                         child_iter != getChildList()->end(); ++child_iter)
                {
                        LLView *viewp = *child_iter;
                        if (viewp->getRect().mBottom < 0)
                        {
                                viewp->setVisible(FALSE);
                        }
                }
        }
        
        LLContainerView::draw();

}

BOOL LLTextureView::addBar(LLViewerImage *imagep, S32 hilite)
{
        llassert(imagep);
        
        LLTextureBar *barp;
        LLRect r;

        mNumTextureBars++;

        barp = new LLTextureBar("texture bar", r, this);
        barp->mImagep = imagep; 
        barp->mHilite = hilite;

        addChild(barp);
        mTextureBars.push_back(barp);

        return TRUE;
}

BOOL LLTextureView::handleMouseDown(S32 x, S32 y, MASK mask)
{
        if ((mask & (MASK_CONTROL|MASK_SHIFT|MASK_ALT)) == (MASK_ALT|MASK_SHIFT))
        {
                mPrintList = TRUE;
                return TRUE;
        }
        if ((mask & (MASK_CONTROL|MASK_SHIFT|MASK_ALT)) == (MASK_CONTROL|MASK_SHIFT))
        {
                gTextureFetch->mDebugPause = !gTextureFetch->mDebugPause;
                return TRUE;
        }
        if (mask & MASK_SHIFT)
        {
                mFreezeView = !mFreezeView;
                return TRUE;
        }
        if (mask & MASK_CONTROL)
        {
                mOrderFetch = !mOrderFetch;
                return TRUE;
        }
        return LLView::handleMouseDown(x,y,mask);
}

BOOL LLTextureView::handleMouseUp(S32 x, S32 y, MASK mask)
{
        return FALSE;
}

BOOL LLTextureView::handleKey(KEY key, MASK mask, BOOL called_from_parent)
{
        return FALSE;
}

---