| /* |
| * Copyright (c) 2008, 2009 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| #include "core/platform/graphics/GlyphPageTreeNode.h" |
| |
| #include "core/platform/graphics/SimpleFontData.h" |
| |
| #include "SkPaint.h" |
| #include "SkTemplates.h" |
| #include "SkUtils.h" |
| |
| namespace WebCore { |
| |
| bool GlyphPage::fill(unsigned offset, unsigned length, UChar* buffer, unsigned bufferLength, const SimpleFontData* fontData) |
| { |
| if (SkUTF16_IsHighSurrogate(buffer[bufferLength-1])) { |
| SkDebugf("%s last char is high-surrogate", __FUNCTION__); |
| return false; |
| } |
| |
| SkPaint paint; |
| fontData->platformData().setupPaint(&paint); |
| paint.setTextEncoding(SkPaint::kUTF16_TextEncoding); |
| |
| #if OS(WIN) |
| // FIXME: For some reason SkAutoSTMalloc fails to link on Windows. |
| // SkAutoSTArray works fine though... |
| SkAutoSTArray<GlyphPage::size, uint16_t> glyphStorage(length); |
| #else |
| SkAutoSTMalloc<GlyphPage::size, uint16_t> glyphStorage(length); |
| #endif |
| |
| uint16_t* glyphs = glyphStorage.get(); |
| // textToGlyphs takes a byte count, not a glyph count so we multiply by two. |
| unsigned count = paint.textToGlyphs(buffer, bufferLength * 2, glyphs); |
| if (count != length) { |
| SkDebugf("%s count != length\n", __FUNCTION__); |
| return false; |
| } |
| |
| unsigned allGlyphs = 0; // track if any of the glyphIDs are non-zero |
| for (unsigned i = 0; i < length; i++) { |
| setGlyphDataForIndex(offset + i, glyphs[i], glyphs[i] ? fontData : NULL); |
| allGlyphs |= glyphs[i]; |
| } |
| |
| return allGlyphs != 0; |
| } |
| |
| } // namespace WebCore |