diff --git a/src/hb-directwrite.cc b/src/hb-directwrite.cc index af0fd3da0..96d1870a0 100644 --- a/src/hb-directwrite.cc +++ b/src/hb-directwrite.cc @@ -1,5 +1,5 @@ /* - * Copyright © 2015 Ebrahim Byagowi + * Copyright © 2015-2016 Ebrahim Byagowi * * This is part of HarfBuzz, a text shaping library. * @@ -25,7 +25,11 @@ #define HB_SHAPER directwrite #include "hb-shaper-impl-private.hh" -#include +#ifndef HB_DIRECTWRITE_EXPERIMENTAL_JUSTIFICATION + #include +#else + #include +#endif #include "hb-directwrite.h" @@ -176,7 +180,8 @@ _hb_rename_font(hb_blob_t *blob, wchar_t *new_name) hb_directwrite_shaper_face_data_t * _hb_directwrite_shaper_face_data_create(hb_face_t *face) { - hb_directwrite_shaper_face_data_t *data = (hb_directwrite_shaper_face_data_t *)calloc(1, sizeof (hb_directwrite_shaper_face_data_t)); + hb_directwrite_shaper_face_data_t *data = + (hb_directwrite_shaper_face_data_t *) calloc (1, sizeof (hb_directwrite_shaper_face_data_t)); if (unlikely (!data)) return NULL; @@ -244,26 +249,30 @@ _hb_directwrite_shaper_font_data_create (hb_font_t *font) { if (unlikely (!hb_directwrite_shaper_face_data_ensure (font->face))) return NULL; - hb_directwrite_shaper_font_data_t *data = (hb_directwrite_shaper_font_data_t *) calloc (1, sizeof (hb_directwrite_shaper_font_data_t)); + hb_directwrite_shaper_font_data_t *data = + (hb_directwrite_shaper_font_data_t *) calloc (1, sizeof (hb_directwrite_shaper_font_data_t)); if (unlikely (!data)) return NULL; data->hdc = GetDC (NULL); - if (unlikely (!populate_log_font (&data->log_font, font))) { + if (unlikely (!populate_log_font (&data->log_font, font))) + { DEBUG_MSG (DIRECTWRITE, font, "Font populate_log_font() failed"); _hb_directwrite_shaper_font_data_destroy (data); return NULL; } data->hfont = CreateFontIndirectW (&data->log_font); - if (unlikely (!data->hfont)) { + if (unlikely (!data->hfont)) + { DEBUG_MSG (DIRECTWRITE, font, "Font CreateFontIndirectW() failed"); _hb_directwrite_shaper_font_data_destroy (data); return NULL; } - if (!SelectObject (data->hdc, data->hfont)) { + if (!SelectObject (data->hdc, data->hfont)) + { DEBUG_MSG (DIRECTWRITE, font, "Font SelectObject() failed"); _hb_directwrite_shaper_font_data_destroy (data); return NULL; @@ -333,16 +342,16 @@ public: // results. struct Run { - UINT32 mTextStart; // starting text position of this run - UINT32 mTextLength; // number of contiguous code units covered - UINT32 mGlyphStart; // starting glyph in the glyphs array - UINT32 mGlyphCount; // number of glyphs associated with this run of + uint32_t mTextStart; // starting text position of this run + uint32_t mTextLength; // number of contiguous code units covered + uint32_t mGlyphStart; // starting glyph in the glyphs array + uint32_t mGlyphCount; // number of glyphs associated with this run of // text DWRITE_SCRIPT_ANALYSIS mScript; - UINT8 mBidiLevel; + uint8_t mBidiLevel; bool mIsSideways; - inline bool ContainsTextPosition(UINT32 aTextPosition) const + inline bool ContainsTextPosition(uint32_t aTextPosition) const { return aTextPosition >= mTextStart && aTextPosition < mTextStart + mTextLength; @@ -353,7 +362,7 @@ public: public: TextAnalysis(const wchar_t* text, - UINT32 textLength, + uint32_t textLength, const wchar_t* localeName, DWRITE_READING_DIRECTION readingDirection) : mText(text) @@ -367,7 +376,7 @@ public: for (Run *run = mRunHead.nextRun; run;) { Run *origRun = run; run = run->nextRun; - delete origRun; + free (origRun); } } @@ -388,10 +397,7 @@ public: mCurrentRun = &mRunHead; // Call each of the analyzers in sequence, recording their results. - if (SUCCEEDED(hr = textAnalyzer->AnalyzeScript(this, - 0, - mTextLength, - this))) { + if (SUCCEEDED (hr = textAnalyzer->AnalyzeScript (this, 0, mTextLength, this))) { *runHead = &mRunHead; } @@ -400,9 +406,9 @@ public: // IDWriteTextAnalysisSource implementation - IFACEMETHODIMP GetTextAtPosition(UINT32 textPosition, - OUT WCHAR const** textString, - OUT UINT32* textLength) + IFACEMETHODIMP GetTextAtPosition(uint32_t textPosition, + OUT wchar_t const** textString, + OUT uint32_t* textLength) { if (textPosition >= mTextLength) { // No text at this position, valid query though. @@ -416,9 +422,9 @@ public: return S_OK; } - IFACEMETHODIMP GetTextBeforePosition(UINT32 textPosition, - OUT WCHAR const** textString, - OUT UINT32* textLength) + IFACEMETHODIMP GetTextBeforePosition(uint32_t textPosition, + OUT wchar_t const** textString, + OUT uint32_t* textLength) { if (textPosition == 0 || textPosition > mTextLength) { // Either there is no text before here (== 0), or this @@ -436,15 +442,15 @@ public: IFACEMETHODIMP_(DWRITE_READING_DIRECTION) GetParagraphReadingDirection() { return mReadingDirection; } - IFACEMETHODIMP GetLocaleName(UINT32 textPosition, - UINT32* textLength, - WCHAR const** localeName) { + IFACEMETHODIMP GetLocaleName(uint32_t textPosition, + uint32_t* textLength, + wchar_t const** localeName) { return S_OK; } IFACEMETHODIMP - GetNumberSubstitution(UINT32 textPosition, - OUT UINT32* textLength, + GetNumberSubstitution(uint32_t textPosition, + OUT uint32_t* textLength, OUT IDWriteNumberSubstitution** numberSubstitution) { // We do not support number substitution. @@ -457,8 +463,8 @@ public: // IDWriteTextAnalysisSink implementation IFACEMETHODIMP - SetScriptAnalysis(UINT32 textPosition, - UINT32 textLength, + SetScriptAnalysis(uint32_t textPosition, + uint32_t textLength, DWRITE_SCRIPT_ANALYSIS const* scriptAnalysis) { SetCurrentRun(textPosition); @@ -472,22 +478,22 @@ public: } IFACEMETHODIMP - SetLineBreakpoints(UINT32 textPosition, - UINT32 textLength, + SetLineBreakpoints(uint32_t textPosition, + uint32_t textLength, const DWRITE_LINE_BREAKPOINT* lineBreakpoints) { return S_OK; } - IFACEMETHODIMP SetBidiLevel(UINT32 textPosition, - UINT32 textLength, - UINT8 explicitLevel, - UINT8 resolvedLevel) { return S_OK; } + IFACEMETHODIMP SetBidiLevel(uint32_t textPosition, + uint32_t textLength, + uint8_t explicitLevel, + uint8_t resolvedLevel) { return S_OK; } IFACEMETHODIMP - SetNumberSubstitution(UINT32 textPosition, - UINT32 textLength, + SetNumberSubstitution(uint32_t textPosition, + uint32_t textLength, IDWriteNumberSubstitution* numberSubstitution) { return S_OK; } protected: - Run *FetchNextRun(IN OUT UINT32* textLength) + Run *FetchNextRun(IN OUT uint32_t* textLength) { // Used by the sink setters, this returns a reference to the next run. // Position and length are adjusted to now point after the current run @@ -509,7 +515,7 @@ protected: return origRun; } - void SetCurrentRun(UINT32 textPosition) + void SetCurrentRun(uint32_t textPosition) { // Move the current run to the given position. // Since the analyzers generally return results in a forward manner, @@ -530,7 +536,7 @@ protected: // of our runs"); } - void SplitCurrentRun(UINT32 splitPosition) + void SplitCurrentRun(uint32_t splitPosition) { if (!mCurrentRun) { //NS_ASSERTION(false, "SplitCurrentRun called without current run."); @@ -543,7 +549,7 @@ protected: // or before it. Usually the first. return; } - Run *newRun = new Run; + Run *newRun = (Run*) malloc (sizeof (Run)); *newRun = *mCurrentRun; @@ -552,7 +558,7 @@ protected: mCurrentRun->nextRun = newRun; // Adjust runs' text positions and lengths. - UINT32 splitPoint = splitPosition - mCurrentRun->mTextStart; + uint32_t splitPoint = splitPosition - mCurrentRun->mTextStart; newRun->mTextStart += splitPoint; newRun->mTextLength -= splitPoint; mCurrentRun->mTextLength = splitPoint; @@ -563,9 +569,9 @@ protected: // Input // (weak references are fine here, since this class is a transient // stack-based helper that doesn't need to copy data) - UINT32 mTextLength; - const WCHAR* mText; - const WCHAR* mLocaleName; + uint32_t mTextLength; + const wchar_t* mText; + const wchar_t* mLocaleName; DWRITE_READING_DIRECTION mReadingDirection; // Current processing state. @@ -575,6 +581,10 @@ protected: Run mRunHead; }; +static inline uint16_t hb_uint16_swap (const uint16_t v) +{ return (v >> 8) | (v << 8); } +static inline uint32_t hb_uint32_swap (const uint32_t v) +{ return (hb_uint16_swap(v) << 16) | hb_uint16_swap(v >> 16); } /* * shaper @@ -592,20 +602,30 @@ _hb_directwrite_shape(hb_shape_plan_t *shape_plan, hb_directwrite_shaper_font_data_t *font_data = HB_SHAPER_DATA_GET (font); // factory probably should be cached +#ifndef HB_DIRECTWRITE_EXPERIMENTAL_JUSTIFICATION IDWriteFactory* dwriteFactory; - DWriteCreateFactory( +#else + IDWriteFactory1* dwriteFactory; +#endif + DWriteCreateFactory ( DWRITE_FACTORY_TYPE_SHARED, - __uuidof(IDWriteFactory), - reinterpret_cast(&dwriteFactory) - ); + __uuidof (IDWriteFactory), + (IUnknown**) &dwriteFactory + ); IDWriteGdiInterop *gdiInterop; dwriteFactory->GetGdiInterop (&gdiInterop); IDWriteFontFace* fontFace; gdiInterop->CreateFontFaceFromHdc (font_data->hdc, &fontFace); +#ifndef HB_DIRECTWRITE_EXPERIMENTAL_JUSTIFICATION IDWriteTextAnalyzer* analyzer; - dwriteFactory->CreateTextAnalyzer (&analyzer); + dwriteFactory->CreateTextAnalyzer(&analyzer); +#else + IDWriteTextAnalyzer* analyzer0; + dwriteFactory->CreateTextAnalyzer (&analyzer0); + IDWriteTextAnalyzer1* analyzer = (IDWriteTextAnalyzer1*) analyzer0; +#endif unsigned int scratch_size; hb_buffer_t::scratch_buffer_t *scratch = buffer->get_scratch_buffer (&scratch_size); @@ -620,7 +640,7 @@ _hb_directwrite_shape(hb_shape_plan_t *shape_plan, #define utf16_index() var1.u32 - ALLOCATE_ARRAY(WCHAR, pchars, buffer->len * 2); + ALLOCATE_ARRAY(wchar_t, textString, buffer->len * 2); unsigned int chars_len = 0; for (unsigned int i = 0; i < buffer->len; i++) @@ -628,17 +648,17 @@ _hb_directwrite_shape(hb_shape_plan_t *shape_plan, hb_codepoint_t c = buffer->info[i].codepoint; buffer->info[i].utf16_index() = chars_len; if (likely(c <= 0xFFFFu)) - pchars[chars_len++] = c; + textString[chars_len++] = c; else if (unlikely(c > 0x10FFFFu)) - pchars[chars_len++] = 0xFFFDu; + textString[chars_len++] = 0xFFFDu; else { - pchars[chars_len++] = 0xD800u + ((c - 0x10000u) >> 10); - pchars[chars_len++] = 0xDC00u + ((c - 0x10000u) & ((1 << 10) - 1)); + textString[chars_len++] = 0xD800u + ((c - 0x10000u) >> 10); + textString[chars_len++] = 0xDC00u + ((c - 0x10000u) & ((1 << 10) - 1)); } } ALLOCATE_ARRAY(WORD, log_clusters, chars_len); - if (num_features) + // if (num_features) { /* Need log_clusters to assign features. */ chars_len = 0; @@ -664,164 +684,287 @@ _hb_directwrite_shape(hb_shape_plan_t *shape_plan, * but we never attempt to shape a word longer than 64K characters * in a single gfxShapedWord, so we cannot exceed that limit. */ - UINT32 length = buffer->len; + uint32_t textLength = buffer->len; - TextAnalysis analysis(pchars, length, NULL, readingDirection); + TextAnalysis analysis(textString, textLength, NULL, readingDirection); TextAnalysis::Run *runHead; hr = analysis.GenerateResults(analyzer, &runHead); - if (FAILED(hr)) { - //NS_WARNING("Analyzer failed to generate results."); +#define FAIL(...) \ + HB_STMT_START { \ + DEBUG_MSG (DIRECTWRITE, NULL, __VA_ARGS__); \ + return false; \ + } HB_STMT_END; + + if (FAILED (hr)) + { + FAIL ("Analyzer failed to generate results."); return false; } - UINT32 maxGlyphs = 3 * length / 2 + 16; + uint32_t maxGlyphCount = 3 * textLength / 2 + 16; + uint32_t glyphCount; + bool isRightToLeft = HB_DIRECTION_IS_BACKWARD (buffer->props.direction); + + const wchar_t localeName[20] = {0}; + if (buffer->props.language != NULL) + { + mbstowcs ((wchar_t*) localeName, + hb_language_to_string (buffer->props.language), 20); + } + + DWRITE_TYPOGRAPHIC_FEATURES singleFeatures; + singleFeatures.featureCount = num_features; + if (num_features) + { + DWRITE_FONT_FEATURE* dwfeatureArray = (DWRITE_FONT_FEATURE*) + malloc (sizeof (DWRITE_FONT_FEATURE) * num_features); + for (unsigned int i = 0; i < num_features; ++i) + { + dwfeatureArray[i].nameTag = (DWRITE_FONT_FEATURE_TAG) + hb_uint32_swap (features[i].tag); + dwfeatureArray[i].parameter = features[i].value; + } + singleFeatures.features = dwfeatureArray; + } + const DWRITE_TYPOGRAPHIC_FEATURES* dwFeatures = + (const DWRITE_TYPOGRAPHIC_FEATURES*) &singleFeatures; + const uint32_t featureRangeLengths[] = { textLength }; -#define INITIAL_GLYPH_SIZE 400 - UINT16* clusters = (UINT16*)malloc(INITIAL_GLYPH_SIZE * sizeof(UINT16)); - UINT16* glyphs = (UINT16*)malloc(INITIAL_GLYPH_SIZE * sizeof(UINT16)); +retry_getglyphs: + uint16_t* clusterMap = (uint16_t*) malloc (maxGlyphCount * sizeof (uint16_t)); + uint16_t* glyphIndices = (uint16_t*) malloc (maxGlyphCount * sizeof (uint16_t)); DWRITE_SHAPING_TEXT_PROPERTIES* textProperties = (DWRITE_SHAPING_TEXT_PROPERTIES*) - malloc(INITIAL_GLYPH_SIZE * sizeof(DWRITE_SHAPING_TEXT_PROPERTIES)); + malloc (maxGlyphCount * sizeof (DWRITE_SHAPING_TEXT_PROPERTIES)); DWRITE_SHAPING_GLYPH_PROPERTIES* glyphProperties = (DWRITE_SHAPING_GLYPH_PROPERTIES*) - malloc(INITIAL_GLYPH_SIZE * sizeof(DWRITE_SHAPING_GLYPH_PROPERTIES)); - - UINT32 actualGlyphs; - - bool backward = HB_DIRECTION_IS_BACKWARD(buffer->props.direction); - - wchar_t lang[4]; - mbstowcs(lang, hb_language_to_string(buffer->props.language), 4); - hr = analyzer->GetGlyphs(pchars, length, - fontFace, FALSE, - buffer->props.direction, - &runHead->mScript, (const wchar_t*)lang, NULL, NULL, NULL, 0, - maxGlyphs, clusters, textProperties, - glyphs, glyphProperties, &actualGlyphs); - - if (hr == HRESULT_FROM_WIN32(ERROR_INSUFFICIENT_BUFFER)) { - free(clusters); - free(glyphs); - free(textProperties); - free(glyphProperties); - - clusters = (UINT16*)malloc(INITIAL_GLYPH_SIZE * sizeof(UINT16)); - glyphs = (UINT16*)malloc(INITIAL_GLYPH_SIZE * sizeof(UINT16)); - textProperties = (DWRITE_SHAPING_TEXT_PROPERTIES*) - malloc(INITIAL_GLYPH_SIZE * sizeof(DWRITE_SHAPING_TEXT_PROPERTIES)); - glyphProperties = (DWRITE_SHAPING_GLYPH_PROPERTIES*) - malloc(INITIAL_GLYPH_SIZE * sizeof(DWRITE_SHAPING_GLYPH_PROPERTIES)); - - hr = analyzer->GetGlyphs(pchars, length, - fontFace, FALSE, - buffer->props.direction, - &runHead->mScript, (const wchar_t*)lang, NULL, NULL, NULL, 0, - maxGlyphs, clusters, textProperties, - glyphs, glyphProperties, &actualGlyphs); - } - if (FAILED(hr)) { - //NS_WARNING("Analyzer failed to get glyphs."); + malloc (maxGlyphCount * sizeof (DWRITE_SHAPING_GLYPH_PROPERTIES)); + + hr = analyzer->GetGlyphs (textString, textLength, fontFace, FALSE, + isRightToLeft, &runHead->mScript, localeName, NULL, &dwFeatures, + featureRangeLengths, 1, maxGlyphCount, clusterMap, textProperties, glyphIndices, + glyphProperties, &glyphCount); + + if (unlikely (hr == HRESULT_FROM_WIN32 (ERROR_INSUFFICIENT_BUFFER))) + { + free (clusterMap); + free (glyphIndices); + free (textProperties); + free (glyphProperties); + + maxGlyphCount *= 2; + + goto retry_getglyphs; + } + if (FAILED (hr)) + { + FAIL ("Analyzer failed to get glyphs."); return false; } - FLOAT advances[400]; - DWRITE_GLYPH_OFFSET offsets[400]; - + float* glyphAdvances = (float*) malloc (maxGlyphCount * sizeof (float)); + DWRITE_GLYPH_OFFSET* glyphOffsets = (DWRITE_GLYPH_OFFSET*) + malloc(maxGlyphCount * sizeof (DWRITE_GLYPH_OFFSET)); /* The -2 in the following is to compensate for possible * alignment needed after the WORD array. sizeof(WORD) == 2. */ - unsigned int glyphs_size = (scratch_size * sizeof (int)-2) - / (sizeof (WORD) + - 4 + // sizeof (SCRIPT_GLYPHPROP) + - sizeof (int) + - 8 + // sizeof (GOFFSET) + - sizeof (uint32_t)); - ALLOCATE_ARRAY(uint32_t, vis_clusters, glyphs_size); + unsigned int glyphs_size = (scratch_size * sizeof(int) - 2) + / (sizeof(WORD) + + sizeof(DWRITE_SHAPING_GLYPH_PROPERTIES) + + sizeof(int) + + sizeof(DWRITE_GLYPH_OFFSET) + + sizeof(uint32_t)); + ALLOCATE_ARRAY (uint32_t, vis_clusters, glyphs_size); #undef ALLOCATE_ARRAY - hr = analyzer->GetGlyphPlacements(pchars, - clusters, - textProperties, - length, - glyphs, - glyphProperties, - actualGlyphs, - fontFace, - face->get_upem(), - FALSE, - FALSE, - &runHead->mScript, - NULL, - NULL, - NULL, - 0, - advances, - offsets); - - if (FAILED(hr)) { - //NS_WARNING("Analyzer failed to get glyph placements."); + int fontEmSize = font->face->get_upem(); + if (fontEmSize < 0) + fontEmSize = -fontEmSize; + + if (fontEmSize < 0) + fontEmSize = -fontEmSize; + double x_mult = (double) font->x_scale / fontEmSize; + double y_mult = (double) font->y_scale / fontEmSize; + + hr = analyzer->GetGlyphPlacements (textString, + clusterMap, textProperties, textLength, glyphIndices, + glyphProperties, glyphCount, fontFace, fontEmSize, + FALSE, isRightToLeft, &runHead->mScript, localeName, + &dwFeatures, featureRangeLengths, 1, + glyphAdvances, glyphOffsets); + + if (FAILED (hr)) + { + FAIL ("Analyzer failed to get glyph placements."); return false; } - unsigned int glyphs_len = actualGlyphs; +#ifdef HB_DIRECTWRITE_EXPERIMENTAL_JUSTIFICATION + + DWRITE_JUSTIFICATION_OPPORTUNITY* justificationOpportunities = + (DWRITE_JUSTIFICATION_OPPORTUNITY*) + malloc (maxGlyphCount * sizeof (DWRITE_JUSTIFICATION_OPPORTUNITY)); + hr = analyzer->GetJustificationOpportunities (fontFace, fontEmSize, + runHead->mScript, textLength, glyphCount, textString, clusterMap, + glyphProperties, justificationOpportunities); + + if (FAILED (hr)) + { + FAIL ("Analyzer failed to get justification opportunities."); + return false; + } + + // TODO: get lineWith from somewhere + float lineWidth = 60000; + + float* justifiedGlyphAdvances = + (float*) malloc (maxGlyphCount * sizeof (float)); + DWRITE_GLYPH_OFFSET* justifiedGlyphOffsets = (DWRITE_GLYPH_OFFSET*) + malloc (glyphCount * sizeof (DWRITE_GLYPH_OFFSET)); + hr = analyzer->JustifyGlyphAdvances (lineWidth, glyphCount, justificationOpportunities, + glyphAdvances, glyphOffsets, justifiedGlyphAdvances, justifiedGlyphOffsets); + + if (FAILED (hr)) + { + FAIL ("Analyzer failed to get justified glyph advances."); + return false; + } + + DWRITE_SCRIPT_PROPERTIES scriptProperties; + hr = analyzer->GetScriptProperties (runHead->mScript, &scriptProperties); + if (FAILED (hr)) + { + FAIL ("Analyzer failed to get script properties."); + return false; + } + uint32_t justificationCharacter = scriptProperties.justificationCharacter; + + // if a script justificationCharacter is not space, it can have GetJustifiedGlyphs + if (justificationCharacter != 32) + { +retry_getjustifiedglyphs: + uint16_t* modifiedClusterMap = (uint16_t*) malloc (maxGlyphCount * sizeof (uint16_t)); + uint16_t* modifiedGlyphIndices = (uint16_t*) malloc (maxGlyphCount * sizeof (uint16_t)); + float* modifiedGlyphAdvances = (float*) malloc (maxGlyphCount * sizeof (float)); + DWRITE_GLYPH_OFFSET* modifiedGlyphOffsets = (DWRITE_GLYPH_OFFSET*) + malloc (maxGlyphCount * sizeof (DWRITE_GLYPH_OFFSET)); + uint32_t actualGlyphsCount; + hr = analyzer->GetJustifiedGlyphs (fontFace, fontEmSize, runHead->mScript, + textLength, glyphCount, maxGlyphCount, clusterMap, glyphIndices, + glyphAdvances, justifiedGlyphAdvances, justifiedGlyphOffsets, + glyphProperties, &actualGlyphsCount, modifiedClusterMap, modifiedGlyphIndices, + modifiedGlyphAdvances, modifiedGlyphOffsets); + + if (hr == HRESULT_FROM_WIN32 (ERROR_INSUFFICIENT_BUFFER)) + { + maxGlyphCount = actualGlyphsCount; + free (modifiedClusterMap); + free (modifiedGlyphIndices); + free (modifiedGlyphAdvances); + free (modifiedGlyphOffsets); + + maxGlyphCount = actualGlyphsCount; + + goto retry_getjustifiedglyphs; + } + if (FAILED (hr)) + { + FAIL ("Analyzer failed to get justified glyphs."); + return false; + } + + free (clusterMap); + free (glyphIndices); + free (glyphAdvances); + free (glyphOffsets); + + glyphCount = actualGlyphsCount; + clusterMap = modifiedClusterMap; + glyphIndices = modifiedGlyphIndices; + glyphAdvances = modifiedGlyphAdvances; + glyphOffsets = modifiedGlyphOffsets; + + free(justifiedGlyphAdvances); + free(justifiedGlyphOffsets); + } + else + { + free(glyphAdvances); + free(glyphOffsets); + + glyphAdvances = justifiedGlyphAdvances; + glyphOffsets = justifiedGlyphOffsets; + } + + free(justificationOpportunities); + +#endif /* Ok, we've got everything we need, now compose output buffer, * very, *very*, carefully! */ /* Calculate visual-clusters. That's what we ship. */ - for (unsigned int i = 0; i < glyphs_len; i++) + for (unsigned int i = 0; i < glyphCount; i++) vis_clusters[i] = -1; - for (unsigned int i = 0; i < buffer->len; i++) { - uint32_t *p = &vis_clusters[log_clusters[buffer->info[i].utf16_index()]]; - //*p = MIN (*p, buffer->info[i].cluster); + for (unsigned int i = 0; i < buffer->len; i++) + { + uint32_t *p = + &vis_clusters[log_clusters[buffer->info[i].utf16_index()]]; + *p = MIN (*p, buffer->info[i].cluster); } - for (unsigned int i = 1; i < glyphs_len; i++) + for (unsigned int i = 1; i < glyphCount; i++) if (vis_clusters[i] == -1) vis_clusters[i] = vis_clusters[i - 1]; #undef utf16_index - //if (unlikely (!buffer->ensure (glyphs_len))) - // FAIL ("Buffer in error"); + if (unlikely (!buffer->ensure (glyphCount))) + FAIL ("Buffer in error"); #undef FAIL /* Set glyph infos */ buffer->len = 0; - for (unsigned int i = 0; i < glyphs_len; i++) + for (unsigned int i = 0; i < glyphCount; i++) { hb_glyph_info_t *info = &buffer->info[buffer->len++]; - info->codepoint = glyphs[i]; + info->codepoint = glyphIndices[i]; info->cluster = vis_clusters[i]; /* The rest is crap. Let's store position info there for now. */ - info->mask = advances[i]; - info->var1.u32 = offsets[i].ascenderOffset; - info->var2.u32 = -offsets[i].advanceOffset; + info->mask = glyphAdvances[i]; + info->var1.i32 = glyphOffsets[i].advanceOffset; + info->var2.i32 = glyphOffsets[i].ascenderOffset; } - free(clusters); - free(glyphs); - free(textProperties); - free(glyphProperties); - /* Set glyph positions */ buffer->clear_positions (); - for (unsigned int i = 0; i < glyphs_len; i++) + for (unsigned int i = 0; i < glyphCount; i++) { hb_glyph_info_t *info = &buffer->info[i]; hb_glyph_position_t *pos = &buffer->pos[i]; /* TODO vertical */ - pos->x_advance = info->mask; - pos->x_offset = backward ? -info->var1.u32 : info->var1.u32; - pos->y_offset = info->var2.u32; + pos->x_advance = x_mult * (int32_t) info->mask; + pos->x_offset = + x_mult * (isRightToLeft ? -info->var1.i32 : info->var1.i32); + pos->y_offset = y_mult * info->var2.i32; } - if (backward) + if (isRightToLeft) hb_buffer_reverse (buffer); + free (clusterMap); + free (glyphIndices); + free (textProperties); + free (glyphProperties); + free (glyphAdvances); + free (glyphOffsets); + + if (num_features) + free (singleFeatures.features); + /* Wow, done! */ return true; }