1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/os/graphics/fbs/fontandbitmapserver/tfbs/tglyphatlas.cpp Fri Jun 15 03:10:57 2012 +0200
1.3 @@ -0,0 +1,284 @@
1.4 +// Copyright (c) 2009-2010 Nokia Corporation and/or its subsidiary(-ies).
1.5 +// All rights reserved.
1.6 +// This component and the accompanying materials are made available
1.7 +// under the terms of "Eclipse Public License v1.0"
1.8 +// which accompanies this distribution, and is available
1.9 +// at the URL "http://www.eclipse.org/legal/epl-v10.html".
1.10 +//
1.11 +// Initial Contributors:
1.12 +// Nokia Corporation - initial contribution.
1.13 +//
1.14 +// Contributors:
1.15 +//
1.16 +// Description:
1.17 +//
1.18 +
1.19 +/**
1.20 + @file
1.21 + @internalComponent - Internal Symbian test code
1.22 +*/
1.23 +
1.24 +#include "tglyphatlas.h"
1.25 +#include "TFBS.H"
1.26 +#include "glyphatlastestwrapper.h"
1.27 +
1.28 +_LIT(KTypefaceName, "DejaVu Sans Condensed");
1.29 +_LIT(KMonoTypefaceName, "DejaVu Sans Mono");
1.30 +const TInt KNumGlyphCodesLatin = 96;
1.31 +
1.32 +
1.33 +CTGlyphAtlas::CTGlyphAtlas(CTestStep* aStep):
1.34 + CTGraphicsBase(aStep),
1.35 + iFbs(NULL),
1.36 + iTs(NULL),
1.37 + iGlyphCodesLatin(NULL),
1.38 + iFont(NULL)
1.39 + {
1.40 + }
1.41 +
1.42 +void CTGlyphAtlas::ConstructL()
1.43 + {
1.44 + iFbs = RFbsSession::GetSession();
1.45 + iTs = (CFbsTypefaceStore*)CFbsTypefaceStore::NewL(NULL);
1.46 + User::LeaveIfError(iTs->GetNearestFontToDesignHeightInPixels((CFont*&)iFont, TFontSpec(KTypefaceName, 15)));
1.47 + User::LeaveIfError(iTs->GetNearestFontToDesignHeightInPixels((CFont*&)iFont2, TFontSpec(KMonoTypefaceName, 8)));
1.48 +
1.49 + iGlyphCodesLatin = new(ELeave) TUint[KNumGlyphCodesLatin];
1.50 + for (TInt ii = 0; ii < KNumGlyphCodesLatin; ++ii)
1.51 + {
1.52 + iGlyphCodesLatin[ii] = ii+32; // ASCII characters from 0020 to 007F
1.53 + }
1.54 +
1.55 + INFO_PRINTF1(_L("FBSERV Glyph Atlas Testing"));
1.56 + }
1.57 +
1.58 +CTGlyphAtlas::~CTGlyphAtlas()
1.59 + {
1.60 + if (iTs)
1.61 + {
1.62 + iTs->ReleaseFont(iFont);
1.63 + }
1.64 + delete iTs;
1.65 + delete[] iGlyphCodesLatin;
1.66 + }
1.67 +
1.68 +void CTGlyphAtlas::RunTestCaseL(TInt aCurTestCase)
1.69 + {
1.70 + ((CTGlyphAtlasStep*)iStep)->SetTestStepID(KUnknownSYMTestCaseIDName);
1.71 + switch(aCurTestCase)
1.72 + {
1.73 + case 1:
1.74 + ((CTGlyphAtlasStep*)iStep)->SetTestStepID(_L("GRAPHICS-FBSERV-0663"));
1.75 + TestFullCache();
1.76 + break;
1.77 + case 2:
1.78 + ((CTGlyphAtlasStep*)iStep)->SetTestStepID(_L("GRAPHICS-FBSERV-0664"));
1.79 + TestFontReleased();
1.80 + break;
1.81 + default:
1.82 + ((CTGlyphAtlasStep*)iStep)->SetTestStepID(KNotATestSYMTestCaseIDName);
1.83 + ((CTGlyphAtlasStep*)iStep)->CloseTMSGraphicsStep();
1.84 + TestComplete();
1.85 + break;
1.86 + }
1.87 + ((CTGlyphAtlasStep*)iStep)->RecordTestResultL();
1.88 + }
1.89 +
1.90 +/**
1.91 +@SYMTestCaseID GRAPHICS-FBSERV-0663
1.92 +@SYMTestPriority High
1.93 +@SYMTestType UT
1.94 +@SYMTestStatus Implemented
1.95 +@SYMPREQ PREQ2678
1.96 +
1.97 +@SYMTestCaseDesc
1.98 + Shows that when the glyph atlas reaches its memory limit, any new added
1.99 + glyphs will cause the eviction of the least recently used glyphs.
1.100 + The new glyph will be added successfully.
1.101 +
1.102 +@SYMTestActions
1.103 + i. Create a glyph atlas with a memory limit of 1000 bytes.
1.104 + ii. Add glyphs to the atlas such that its memory consumption reaches the limit.
1.105 + iii. Add one more glyph.
1.106 + iv. Call CGlyphAtlas::GetGlyph() for the last glyph added.
1.107 + v. Call CGlyphAtlas::GetGlyph() for the least recently used glyphs to check
1.108 + that it has been evicted.
1.109 + vi. Delete glyph atlas
1.110 +
1.111 +@SYMTestExpectedResults
1.112 + Each glyph is added successfully.
1.113 + CGlyphAtlas::GetGlyph() returns KErrNone for the last glyph added.
1.114 + CGlyphAtlas::GetGlyph() returns KErrNotFound for the least recently used glyph.
1.115 +*/
1.116 +void CTGlyphAtlas::TestFullCache()
1.117 + {
1.118 + INFO_PRINTF1(_L("Test full cache eviction"));
1.119 +
1.120 + __UHEAP_MARK;
1.121 + // Fill cache up using expected size of glyph using AddGlyph.
1.122 + const TInt KMaxAtlasSizeInBytes = 1000;
1.123 + CGlyphAtlasTestWrapper* atlas = NULL;
1.124 + TRAPD(ret, atlas = CGlyphAtlasTestWrapper::NewL(KMaxAtlasSizeInBytes));
1.125 + TESTNOERROR(ret);
1.126 + if (KErrNone != ret)
1.127 + {
1.128 + return;
1.129 + }
1.130 + TOpenFontCharMetrics charMetrics;
1.131 + TGlyphImageInfo imageInfo;
1.132 + TSize bitmapSize;
1.133 + const TUint8* bitmapData = NULL;
1.134 + TInt glyphIndex = 0;
1.135 + TBool atlasFull = EFalse;
1.136 + CBitmapFont* bmFont = CTFbsFont::FontAddress(iFont);
1.137 + // Fill up atlas by adding glyphs.
1.138 + // Next glyph shold tip the atlas over the memory limit.
1.139 + // Glyphs are added in ascending glyph code order.
1.140 + // Leave at least one glyph so that we can guarantee that we can add one more unique glyph.
1.141 + while (glyphIndex < KNumGlyphCodesLatin-1 && !atlasFull)
1.142 + {
1.143 + iFont->GetCharacterData(iGlyphCodesLatin[glyphIndex], charMetrics, bitmapData, bitmapSize);
1.144 + TInt sizeInBytes = charMetrics.Height() * charMetrics.Width();
1.145 + if (atlas->SizeInBytes() + sizeInBytes <= KMaxAtlasSizeInBytes)
1.146 + {
1.147 + CGlyphAtlas::TAddGlyphArgs args(bitmapData, iGlyphCodesLatin[glyphIndex++], charMetrics);
1.148 + TESTNOERROR(atlas->AddGlyph(*bmFont, args, imageInfo));
1.149 + }
1.150 + else
1.151 + {
1.152 + atlasFull = ETrue;
1.153 + }
1.154 + }
1.155 + TEST(atlasFull);
1.156 +
1.157 + // check least recently used page contains the first glyph in glyph codes
1.158 + TUint leastUsedGlyphCode = iGlyphCodesLatin[0];
1.159 + TEST(atlas->LruPageContainsGlyph(leastUsedGlyphCode));
1.160 +
1.161 + // To ensure that the test does not pass if a FIFO eviction policy occurs,
1.162 + // get the least recently used glyph so that it is moved internally.
1.163 + TESTNOERROR(atlas->GetGlyph(*bmFont, leastUsedGlyphCode, imageInfo));
1.164 +
1.165 + // glyphIndex, bitmapData and charMetrics now current for next glyph which
1.166 + // will take the atlas over the cache limit.
1.167 + CGlyphAtlas::TAddGlyphArgs args(bitmapData, iGlyphCodesLatin[glyphIndex], charMetrics);
1.168 + TESTNOERROR(atlas->AddGlyph(*bmFont, args, imageInfo));
1.169 +
1.170 + // check that searching for most recently added glyph is successful
1.171 + TGlyphImageInfo newInfo;
1.172 + TESTNOERROR(atlas->GetGlyph(*bmFont, iGlyphCodesLatin[glyphIndex], newInfo));
1.173 +
1.174 + // check atlas size is still under the limit
1.175 + TEST(atlas->SizeInBytes() <= KMaxAtlasSizeInBytes);
1.176 +
1.177 + // check that the pages which were evicted contained the least used glyphs
1.178 + // i.e. searching for these returns KErrNotFound
1.179 + TInt err = KErrNotFound;
1.180 + TInt index = 1;
1.181 + for (; KErrNotFound == err && index <= glyphIndex; ++index)
1.182 + {
1.183 + err = atlas->GetGlyph(*bmFont, iGlyphCodesLatin[index], newInfo);
1.184 + }
1.185 + TESTNOERROR(err);
1.186 + // first found glyph should be greater than glyph at index 1
1.187 + TEST(index-1 > 1);
1.188 +
1.189 + // check that the remaining pages contained the least used glyphs
1.190 + for (; index <= glyphIndex; ++index)
1.191 + {
1.192 + TESTNOERROR(atlas->GetGlyph(*bmFont, iGlyphCodesLatin[index], newInfo));
1.193 + }
1.194 +
1.195 + delete atlas;
1.196 + __UHEAP_MARKEND;
1.197 + }
1.198 +
1.199 +
1.200 +/**
1.201 +@SYMTestCaseID GRAPHICS-FBSERV-0664
1.202 +@SYMTestPriority High
1.203 +@SYMTestType UT
1.204 +@SYMTestStatus Implemented
1.205 +@SYMPREQ PREQ2678
1.206 +
1.207 +@SYMTestCaseDesc
1.208 + Shows that CGlyphAtlas::FontReleased() does actually delete all the glyphs
1.209 + associated with the released font and leaves glyphs associated with other
1.210 + fonts untouched.
1.211 +
1.212 +@SYMTestActions
1.213 + i. Create a glyph atlas with no memory limit.
1.214 + ii. Add glyphs for two different fonts to the atlas.
1.215 + iii. Check all glyphs for both fonts were successfully added.
1.216 + iv. Call CGlyphAtlas::ReleaseFont for one of the fonts.
1.217 + v. Check that there are no glyphs associated with the released font.
1.218 + vi. Call CGlyphAtlas::ReleaseFont for the remaining font.
1.219 + vii Check that there are no glyphs associated with the released font and
1.220 + that the atlas is empty.
1.221 + viii Delete the glyph atlas.
1.222 +
1.223 +@SYMTestExpectedResults
1.224 + After each font is released, there are no glyphs associated with that font
1.225 + left in the atlas.
1.226 +*/
1.227 +void CTGlyphAtlas::TestFontReleased()
1.228 + {
1.229 + INFO_PRINTF1(_L("Test behaviour of CGlyphAtlas::FontReleased()"));
1.230 +
1.231 + __UHEAP_MARK;
1.232 + CGlyphAtlasTestWrapper* atlas = NULL;
1.233 + TRAPD(ret, atlas = CGlyphAtlasTestWrapper::NewL(KGlyphAtlasNoCacheLimit));
1.234 + TESTNOERROR(ret);
1.235 + if (KErrNone != ret)
1.236 + {
1.237 + return;
1.238 + }
1.239 + TOpenFontCharMetrics charMetrics;
1.240 + TGlyphImageInfo imageInfo;
1.241 + TSize bitmapSize;
1.242 + const TUint8* bitmapData = NULL;
1.243 + CBitmapFont* bmFont = CTFbsFont::FontAddress(iFont);
1.244 + CBitmapFont* bmFont2 = CTFbsFont::FontAddress(iFont2);
1.245 + for (TInt glyphIndex = 0; glyphIndex < KNumGlyphCodesLatin; ++glyphIndex)
1.246 + {
1.247 + iFont->GetCharacterData(iGlyphCodesLatin[glyphIndex], charMetrics, bitmapData, bitmapSize);
1.248 + CGlyphAtlas::TAddGlyphArgs args(bitmapData, iGlyphCodesLatin[glyphIndex], charMetrics);
1.249 + TESTNOERROR(atlas->AddGlyph(*bmFont, args, imageInfo));
1.250 +
1.251 + iFont2->GetCharacterData(iGlyphCodesLatin[KNumGlyphCodesLatin-1-glyphIndex], charMetrics, bitmapData, bitmapSize);
1.252 + CGlyphAtlas::TAddGlyphArgs args2(bitmapData, iGlyphCodesLatin[glyphIndex], charMetrics);
1.253 + TESTNOERROR(atlas->AddGlyph(*bmFont2, args2, imageInfo));
1.254 + }
1.255 + // check there are font entries for these 2 fonts
1.256 + TEST(2 == atlas->FontCount());
1.257 +
1.258 + // check actual number of glyphs in atlas for each font is as expected
1.259 + TEST(KNumGlyphCodesLatin == atlas->GlyphCountByFont(bmFont));
1.260 + TEST(KNumGlyphCodesLatin == atlas->GlyphCountByFont(bmFont2));
1.261 + TEST(2*KNumGlyphCodesLatin == atlas->GlyphCount());
1.262 +
1.263 + // release one font and check number of glyphs in atlas for each font
1.264 + // is as expected
1.265 + atlas->FontReleased(*bmFont);
1.266 + TEST(1 == atlas->FontCount());
1.267 + TEST(0 == atlas->GlyphCountByFont(bmFont));
1.268 + TEST(KNumGlyphCodesLatin == atlas->GlyphCountByFont(bmFont2));
1.269 + TEST(KNumGlyphCodesLatin == atlas->GlyphCount());
1.270 +
1.271 + // release one font and check number of glyphs in atlas for each font
1.272 + // is as expected
1.273 + atlas->FontReleased(*bmFont2);
1.274 + TEST(0 == atlas->FontCount());
1.275 + TEST(0 == atlas->GlyphCountByFont(bmFont));
1.276 + TEST(0 == atlas->GlyphCountByFont(bmFont2));
1.277 + TEST(0 == atlas->GlyphCount());
1.278 +
1.279 + delete atlas;
1.280 +
1.281 + __UHEAP_MARKEND;
1.282 + }
1.283 +
1.284 +
1.285 +
1.286 +//--------------
1.287 +__CONSTRUCT_STEP__(GlyphAtlas)