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-rw-r--r--indra/llrender/llfontfreetype.cpp1026
1 files changed, 513 insertions, 513 deletions
diff --git a/indra/llrender/llfontfreetype.cpp b/indra/llrender/llfontfreetype.cpp
index f987c599ad..92b373c835 100644
--- a/indra/llrender/llfontfreetype.cpp
+++ b/indra/llrender/llfontfreetype.cpp
@@ -1,25 +1,25 @@
-/**
+/**
* @file llfontfreetype.cpp
* @brief Freetype font library wrapper
*
* $LicenseInfo:firstyear=2002&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
- *
+ *
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
- *
+ *
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
- *
+ *
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
+ *
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
@@ -46,7 +46,7 @@
#include "llimage.h"
#include "llimagepng.h"
//#include "llimagej2c.h"
-#include "llmath.h" // Linden math
+#include "llmath.h" // Linden math
#include "llstring.h"
//#include "imdebug.h"
#include "llfontbitmapcache.h"
@@ -63,294 +63,294 @@ FT_Library gFTLibrary = NULL;
//static
void LLFontManager::initClass()
{
- if (!gFontManagerp)
- {
- gFontManagerp = new LLFontManager;
- }
+ if (!gFontManagerp)
+ {
+ gFontManagerp = new LLFontManager;
+ }
}
//static
void LLFontManager::cleanupClass()
{
- delete gFontManagerp;
- gFontManagerp = NULL;
+ delete gFontManagerp;
+ gFontManagerp = NULL;
}
LLFontManager::LLFontManager()
{
- int error;
- error = FT_Init_FreeType(&gFTLibrary);
- if (error)
- {
- // Clean up freetype libs.
- LL_ERRS() << "Freetype initialization failure!" << LL_ENDL;
- FT_Done_FreeType(gFTLibrary);
- }
+ int error;
+ error = FT_Init_FreeType(&gFTLibrary);
+ if (error)
+ {
+ // Clean up freetype libs.
+ LL_ERRS() << "Freetype initialization failure!" << LL_ENDL;
+ FT_Done_FreeType(gFTLibrary);
+ }
#ifdef ENABLE_OT_SVG_SUPPORT
- SVG_RendererHooks hooks = {
- LLFontFreeTypeSvgRenderer::OnInit,
- LLFontFreeTypeSvgRenderer::OnFree,
- LLFontFreeTypeSvgRenderer::OnRender,
- LLFontFreeTypeSvgRenderer::OnPresetGlypthSlot,
- };
- FT_Property_Set(gFTLibrary, "ot-svg", "svg-hooks", &hooks);
+ SVG_RendererHooks hooks = {
+ LLFontFreeTypeSvgRenderer::OnInit,
+ LLFontFreeTypeSvgRenderer::OnFree,
+ LLFontFreeTypeSvgRenderer::OnRender,
+ LLFontFreeTypeSvgRenderer::OnPresetGlypthSlot,
+ };
+ FT_Property_Set(gFTLibrary, "ot-svg", "svg-hooks", &hooks);
#endif
}
LLFontManager::~LLFontManager()
{
- FT_Done_FreeType(gFTLibrary);
+ FT_Done_FreeType(gFTLibrary);
}
LLFontGlyphInfo::LLFontGlyphInfo(U32 index, EFontGlyphType glyph_type)
-: mGlyphIndex(index),
- mGlyphType(glyph_type),
- mWidth(0), // In pixels
- mHeight(0), // In pixels
- mXAdvance(0.f), // In pixels
- mYAdvance(0.f), // In pixels
- mXBitmapOffset(0), // Offset to the origin in the bitmap
- mYBitmapOffset(0), // Offset to the origin in the bitmap
- mXBearing(0), // Distance from baseline to left in pixels
- mYBearing(0), // Distance from baseline to top in pixels
- mBitmapEntry(std::make_pair(EFontGlyphType::Unspecified, -1)) // Which bitmap in the bitmap cache contains this glyph
+: mGlyphIndex(index),
+ mGlyphType(glyph_type),
+ mWidth(0), // In pixels
+ mHeight(0), // In pixels
+ mXAdvance(0.f), // In pixels
+ mYAdvance(0.f), // In pixels
+ mXBitmapOffset(0), // Offset to the origin in the bitmap
+ mYBitmapOffset(0), // Offset to the origin in the bitmap
+ mXBearing(0), // Distance from baseline to left in pixels
+ mYBearing(0), // Distance from baseline to top in pixels
+ mBitmapEntry(std::make_pair(EFontGlyphType::Unspecified, -1)) // Which bitmap in the bitmap cache contains this glyph
{
}
LLFontGlyphInfo::LLFontGlyphInfo(const LLFontGlyphInfo& fgi)
- : mGlyphIndex(fgi.mGlyphIndex)
- , mGlyphType(fgi.mGlyphType)
- , mWidth(fgi.mWidth)
- , mHeight(fgi.mHeight)
- , mXAdvance(fgi.mXAdvance)
- , mYAdvance(fgi.mYAdvance)
- , mXBitmapOffset(fgi.mXBitmapOffset)
- , mYBitmapOffset(fgi.mYBitmapOffset)
- , mXBearing(fgi.mXBearing)
- , mYBearing(fgi.mYBearing)
+ : mGlyphIndex(fgi.mGlyphIndex)
+ , mGlyphType(fgi.mGlyphType)
+ , mWidth(fgi.mWidth)
+ , mHeight(fgi.mHeight)
+ , mXAdvance(fgi.mXAdvance)
+ , mYAdvance(fgi.mYAdvance)
+ , mXBitmapOffset(fgi.mXBitmapOffset)
+ , mYBitmapOffset(fgi.mYBitmapOffset)
+ , mXBearing(fgi.mXBearing)
+ , mYBearing(fgi.mYBearing)
{
- mBitmapEntry = fgi.mBitmapEntry;
+ mBitmapEntry = fgi.mBitmapEntry;
}
LLFontFreetype::LLFontFreetype()
-: mFontBitmapCachep(new LLFontBitmapCache),
- mAscender(0.f),
- mDescender(0.f),
- mLineHeight(0.f),
+: mFontBitmapCachep(new LLFontBitmapCache),
+ mAscender(0.f),
+ mDescender(0.f),
+ mLineHeight(0.f),
#ifdef LL_WINDOWS
- pFileStream(NULL),
- pFtStream(NULL),
+ pFileStream(NULL),
+ pFtStream(NULL),
#endif
- mIsFallback(FALSE),
- mFTFace(NULL),
- mRenderGlyphCount(0),
- mAddGlyphCount(0),
- mStyle(0),
- mPointSize(0)
+ mIsFallback(FALSE),
+ mFTFace(NULL),
+ mRenderGlyphCount(0),
+ mAddGlyphCount(0),
+ mStyle(0),
+ mPointSize(0)
{
}
LLFontFreetype::~LLFontFreetype()
{
- // Clean up freetype libs.
- if (mFTFace)
- FT_Done_Face(mFTFace);
- mFTFace = NULL;
+ // Clean up freetype libs.
+ if (mFTFace)
+ FT_Done_Face(mFTFace);
+ mFTFace = NULL;
- // Delete glyph info
- std::for_each(mCharGlyphInfoMap.begin(), mCharGlyphInfoMap.end(), DeletePairedPointer());
- mCharGlyphInfoMap.clear();
+ // Delete glyph info
+ std::for_each(mCharGlyphInfoMap.begin(), mCharGlyphInfoMap.end(), DeletePairedPointer());
+ mCharGlyphInfoMap.clear();
#ifdef LL_WINDOWS
- delete pFileStream; // closed by FT_Done_Face
- delete pFtStream;
+ delete pFileStream; // closed by FT_Done_Face
+ delete pFtStream;
#endif
- delete mFontBitmapCachep;
- // mFallbackFonts cleaned up by LLPointer destructor
+ delete mFontBitmapCachep;
+ // mFallbackFonts cleaned up by LLPointer destructor
}
#ifdef LL_WINDOWS
unsigned long ft_read_cb(FT_Stream stream, unsigned long offset, unsigned char *buffer, unsigned long count) {
- if (count <= 0) return count;
- llifstream *file_stream = static_cast<llifstream *>(stream->descriptor.pointer);
- file_stream->seekg(offset, std::ios::beg);
- file_stream->read((char*)buffer, count);
- return file_stream->gcount();
+ if (count <= 0) return count;
+ llifstream *file_stream = static_cast<llifstream *>(stream->descriptor.pointer);
+ file_stream->seekg(offset, std::ios::beg);
+ file_stream->read((char*)buffer, count);
+ return file_stream->gcount();
}
void ft_close_cb(FT_Stream stream) {
- llifstream *file_stream = static_cast<llifstream *>(stream->descriptor.pointer);
- file_stream->close();
+ llifstream *file_stream = static_cast<llifstream *>(stream->descriptor.pointer);
+ file_stream->close();
}
#endif
BOOL LLFontFreetype::loadFace(const std::string& filename, F32 point_size, F32 vert_dpi, F32 horz_dpi, bool is_fallback, S32 face_n)
{
- // Don't leak face objects. This is also needed to deal with
- // changed font file names.
- if (mFTFace)
- {
- FT_Done_Face(mFTFace);
- mFTFace = NULL;
- }
-
- int error;
+ // Don't leak face objects. This is also needed to deal with
+ // changed font file names.
+ if (mFTFace)
+ {
+ FT_Done_Face(mFTFace);
+ mFTFace = NULL;
+ }
+
+ int error;
#ifdef LL_WINDOWS
- error = ftOpenFace(filename, face_n);
+ error = ftOpenFace(filename, face_n);
#else
- error = FT_New_Face( gFTLibrary,
- filename.c_str(),
- 0,
- &mFTFace);
+ error = FT_New_Face( gFTLibrary,
+ filename.c_str(),
+ 0,
+ &mFTFace);
#endif
- if (error)
- {
+ if (error)
+ {
#ifdef LL_WINDOWS
- clearFontStreams();
+ clearFontStreams();
#endif
- return FALSE;
- }
-
- mIsFallback = is_fallback;
- F32 pixels_per_em = (point_size / 72.f)*vert_dpi; // Size in inches * dpi
-
- error = FT_Set_Char_Size(mFTFace, /* handle to face object */
- 0, /* char_width in 1/64th of points */
- (S32)(point_size*64), /* char_height in 1/64th of points */
- (U32)horz_dpi, /* horizontal device resolution */
- (U32)vert_dpi); /* vertical device resolution */
-
- if (error)
- {
- // Clean up freetype libs.
- FT_Done_Face(mFTFace);
+ return FALSE;
+ }
+
+ mIsFallback = is_fallback;
+ F32 pixels_per_em = (point_size / 72.f)*vert_dpi; // Size in inches * dpi
+
+ error = FT_Set_Char_Size(mFTFace, /* handle to face object */
+ 0, /* char_width in 1/64th of points */
+ (S32)(point_size*64), /* char_height in 1/64th of points */
+ (U32)horz_dpi, /* horizontal device resolution */
+ (U32)vert_dpi); /* vertical device resolution */
+
+ if (error)
+ {
+ // Clean up freetype libs.
+ FT_Done_Face(mFTFace);
#ifdef LL_WINDOWS
- clearFontStreams();
+ clearFontStreams();
#endif
- mFTFace = NULL;
- return FALSE;
- }
+ mFTFace = NULL;
+ return FALSE;
+ }
- F32 y_max, y_min, x_max, x_min;
- F32 ems_per_unit = 1.f/ mFTFace->units_per_EM;
- F32 pixels_per_unit = pixels_per_em * ems_per_unit;
+ F32 y_max, y_min, x_max, x_min;
+ F32 ems_per_unit = 1.f/ mFTFace->units_per_EM;
+ F32 pixels_per_unit = pixels_per_em * ems_per_unit;
- // Get size of bbox in pixels
- y_max = mFTFace->bbox.yMax * pixels_per_unit;
- y_min = mFTFace->bbox.yMin * pixels_per_unit;
- x_max = mFTFace->bbox.xMax * pixels_per_unit;
- x_min = mFTFace->bbox.xMin * pixels_per_unit;
- mAscender = mFTFace->ascender * pixels_per_unit;
- mDescender = -mFTFace->descender * pixels_per_unit;
- mLineHeight = mFTFace->height * pixels_per_unit;
+ // Get size of bbox in pixels
+ y_max = mFTFace->bbox.yMax * pixels_per_unit;
+ y_min = mFTFace->bbox.yMin * pixels_per_unit;
+ x_max = mFTFace->bbox.xMax * pixels_per_unit;
+ x_min = mFTFace->bbox.xMin * pixels_per_unit;
+ mAscender = mFTFace->ascender * pixels_per_unit;
+ mDescender = -mFTFace->descender * pixels_per_unit;
+ mLineHeight = mFTFace->height * pixels_per_unit;
- S32 max_char_width = ll_round(0.5f + (x_max - x_min));
- S32 max_char_height = ll_round(0.5f + (y_max - y_min));
+ S32 max_char_width = ll_round(0.5f + (x_max - x_min));
+ S32 max_char_height = ll_round(0.5f + (y_max - y_min));
- mFontBitmapCachep->init(max_char_width, max_char_height);
+ mFontBitmapCachep->init(max_char_width, max_char_height);
- if (!mFTFace->charmap)
- {
- //LL_INFOS() << " no unicode encoding, set whatever encoding there is..." << LL_ENDL;
- FT_Set_Charmap(mFTFace, mFTFace->charmaps[0]);
- }
+ if (!mFTFace->charmap)
+ {
+ //LL_INFOS() << " no unicode encoding, set whatever encoding there is..." << LL_ENDL;
+ FT_Set_Charmap(mFTFace, mFTFace->charmaps[0]);
+ }
- if (!mIsFallback)
- {
- // Add the default glyph
- addGlyphFromFont(this, 0, 0, EFontGlyphType::Grayscale);
- }
+ if (!mIsFallback)
+ {
+ // Add the default glyph
+ addGlyphFromFont(this, 0, 0, EFontGlyphType::Grayscale);
+ }
- mName = filename;
- mPointSize = point_size;
+ mName = filename;
+ mPointSize = point_size;
- mStyle = LLFontGL::NORMAL;
- if(mFTFace->style_flags & FT_STYLE_FLAG_BOLD)
- {
- mStyle |= LLFontGL::BOLD;
- }
+ mStyle = LLFontGL::NORMAL;
+ if(mFTFace->style_flags & FT_STYLE_FLAG_BOLD)
+ {
+ mStyle |= LLFontGL::BOLD;
+ }
- if(mFTFace->style_flags & FT_STYLE_FLAG_ITALIC)
- {
- mStyle |= LLFontGL::ITALIC;
- }
+ if(mFTFace->style_flags & FT_STYLE_FLAG_ITALIC)
+ {
+ mStyle |= LLFontGL::ITALIC;
+ }
- return TRUE;
+ return TRUE;
}
S32 LLFontFreetype::getNumFaces(const std::string& filename)
{
- if (mFTFace)
- {
- FT_Done_Face(mFTFace);
- mFTFace = NULL;
- }
+ if (mFTFace)
+ {
+ FT_Done_Face(mFTFace);
+ mFTFace = NULL;
+ }
- S32 num_faces = 1;
+ S32 num_faces = 1;
#ifdef LL_WINDOWS
- int error = ftOpenFace(filename, 0);
-
- if (error)
- {
- return 0;
- }
- else
- {
- num_faces = mFTFace->num_faces;
- }
-
- FT_Done_Face(mFTFace);
- clearFontStreams();
- mFTFace = NULL;
+ int error = ftOpenFace(filename, 0);
+
+ if (error)
+ {
+ return 0;
+ }
+ else
+ {
+ num_faces = mFTFace->num_faces;
+ }
+
+ FT_Done_Face(mFTFace);
+ clearFontStreams();
+ mFTFace = NULL;
#endif
- return num_faces;
+ return num_faces;
}
#ifdef LL_WINDOWS
S32 LLFontFreetype::ftOpenFace(const std::string& filename, S32 face_n)
{
- S32 error = -1;
- pFileStream = new llifstream(filename, std::ios::binary);
- if (pFileStream->is_open())
- {
- std::streampos beg = pFileStream->tellg();
- pFileStream->seekg(0, std::ios::end);
- std::streampos end = pFileStream->tellg();
- std::size_t file_size = end - beg;
- pFileStream->seekg(0, std::ios::beg);
-
- pFtStream = new LLFT_Stream();
- pFtStream->base = 0;
- pFtStream->pos = 0;
- pFtStream->size = file_size;
- pFtStream->descriptor.pointer = pFileStream;
- pFtStream->read = ft_read_cb;
- pFtStream->close = ft_close_cb;
-
- FT_Open_Args args;
- args.flags = FT_OPEN_STREAM;
- args.stream = (FT_StreamRec*)pFtStream;
- error = FT_Open_Face(gFTLibrary, &args, face_n, &mFTFace);
- }
- return error;
+ S32 error = -1;
+ pFileStream = new llifstream(filename, std::ios::binary);
+ if (pFileStream->is_open())
+ {
+ std::streampos beg = pFileStream->tellg();
+ pFileStream->seekg(0, std::ios::end);
+ std::streampos end = pFileStream->tellg();
+ std::size_t file_size = end - beg;
+ pFileStream->seekg(0, std::ios::beg);
+
+ pFtStream = new LLFT_Stream();
+ pFtStream->base = 0;
+ pFtStream->pos = 0;
+ pFtStream->size = file_size;
+ pFtStream->descriptor.pointer = pFileStream;
+ pFtStream->read = ft_read_cb;
+ pFtStream->close = ft_close_cb;
+
+ FT_Open_Args args;
+ args.flags = FT_OPEN_STREAM;
+ args.stream = (FT_StreamRec*)pFtStream;
+ error = FT_Open_Face(gFTLibrary, &args, face_n, &mFTFace);
+ }
+ return error;
}
void LLFontFreetype::clearFontStreams()
{
- if (pFileStream)
- {
- pFileStream->close();
- }
- delete pFileStream;
- delete pFtStream;
- pFileStream = NULL;
- pFtStream = NULL;
+ if (pFileStream)
+ {
+ pFileStream->close();
+ }
+ delete pFileStream;
+ delete pFtStream;
+ pFileStream = NULL;
+ pFtStream = NULL;
}
#endif
@@ -362,89 +362,89 @@ void LLFontFreetype::addFallbackFont(const LLPointer<LLFontFreetype>& fallback_f
F32 LLFontFreetype::getLineHeight() const
{
- return mLineHeight;
+ return mLineHeight;
}
F32 LLFontFreetype::getAscenderHeight() const
{
- return mAscender;
+ return mAscender;
}
F32 LLFontFreetype::getDescenderHeight() const
{
- return mDescender;
+ return mDescender;
}
F32 LLFontFreetype::getXAdvance(llwchar wch) const
{
- if (mFTFace == NULL)
- return 0.0;
+ if (mFTFace == NULL)
+ return 0.0;
- // Return existing info only if it is current
- LLFontGlyphInfo* gi = getGlyphInfo(wch, EFontGlyphType::Unspecified);
- if (gi)
- {
- return gi->mXAdvance;
- }
- else
- {
- char_glyph_info_map_t::iterator found_it = mCharGlyphInfoMap.find((llwchar)0);
- if (found_it != mCharGlyphInfoMap.end())
- {
- return found_it->second->mXAdvance;
- }
- }
+ // Return existing info only if it is current
+ LLFontGlyphInfo* gi = getGlyphInfo(wch, EFontGlyphType::Unspecified);
+ if (gi)
+ {
+ return gi->mXAdvance;
+ }
+ else
+ {
+ char_glyph_info_map_t::iterator found_it = mCharGlyphInfoMap.find((llwchar)0);
+ if (found_it != mCharGlyphInfoMap.end())
+ {
+ return found_it->second->mXAdvance;
+ }
+ }
- // Last ditch fallback - no glyphs defined at all.
- return (F32)mFontBitmapCachep->getMaxCharWidth();
+ // Last ditch fallback - no glyphs defined at all.
+ return (F32)mFontBitmapCachep->getMaxCharWidth();
}
F32 LLFontFreetype::getXAdvance(const LLFontGlyphInfo* glyph) const
{
- if (mFTFace == NULL)
- return 0.0;
+ if (mFTFace == NULL)
+ return 0.0;
- return glyph->mXAdvance;
+ return glyph->mXAdvance;
}
F32 LLFontFreetype::getXKerning(llwchar char_left, llwchar char_right) const
{
- if (mFTFace == NULL)
- return 0.0;
+ if (mFTFace == NULL)
+ return 0.0;
- //llassert(!mIsFallback);
- LLFontGlyphInfo* left_glyph_info = getGlyphInfo(char_left, EFontGlyphType::Unspecified);;
- U32 left_glyph = left_glyph_info ? left_glyph_info->mGlyphIndex : 0;
- // Kern this puppy.
- LLFontGlyphInfo* right_glyph_info = getGlyphInfo(char_right, EFontGlyphType::Unspecified);
- U32 right_glyph = right_glyph_info ? right_glyph_info->mGlyphIndex : 0;
+ //llassert(!mIsFallback);
+ LLFontGlyphInfo* left_glyph_info = getGlyphInfo(char_left, EFontGlyphType::Unspecified);;
+ U32 left_glyph = left_glyph_info ? left_glyph_info->mGlyphIndex : 0;
+ // Kern this puppy.
+ LLFontGlyphInfo* right_glyph_info = getGlyphInfo(char_right, EFontGlyphType::Unspecified);
+ U32 right_glyph = right_glyph_info ? right_glyph_info->mGlyphIndex : 0;
- FT_Vector delta;
+ FT_Vector delta;
- llverify(!FT_Get_Kerning(mFTFace, left_glyph, right_glyph, ft_kerning_unfitted, &delta));
+ llverify(!FT_Get_Kerning(mFTFace, left_glyph, right_glyph, ft_kerning_unfitted, &delta));
- return delta.x*(1.f/64.f);
+ return delta.x*(1.f/64.f);
}
F32 LLFontFreetype::getXKerning(const LLFontGlyphInfo* left_glyph_info, const LLFontGlyphInfo* right_glyph_info) const
{
- if (mFTFace == NULL)
- return 0.0;
+ if (mFTFace == NULL)
+ return 0.0;
- U32 left_glyph = left_glyph_info ? left_glyph_info->mGlyphIndex : 0;
- U32 right_glyph = right_glyph_info ? right_glyph_info->mGlyphIndex : 0;
+ U32 left_glyph = left_glyph_info ? left_glyph_info->mGlyphIndex : 0;
+ U32 right_glyph = right_glyph_info ? right_glyph_info->mGlyphIndex : 0;
- FT_Vector delta;
+ FT_Vector delta;
- llverify(!FT_Get_Kerning(mFTFace, left_glyph, right_glyph, ft_kerning_unfitted, &delta));
+ llverify(!FT_Get_Kerning(mFTFace, left_glyph, right_glyph, ft_kerning_unfitted, &delta));
- return delta.x*(1.f/64.f);
+ return delta.x*(1.f/64.f);
}
BOOL LLFontFreetype::hasGlyph(llwchar wch) const
{
- llassert(!mIsFallback);
- return(mCharGlyphInfoMap.find(wch) != mCharGlyphInfoMap.end());
+ llassert(!mIsFallback);
+ return(mCharGlyphInfoMap.find(wch) != mCharGlyphInfoMap.end());
}
LLFontGlyphInfo* LLFontFreetype::addGlyph(llwchar wch, EFontGlyphType glyph_type) const
@@ -532,7 +532,7 @@ LLFontGlyphInfo* LLFontFreetype::addGlyph(llwchar wch, EFontGlyphType glyph_type
}
auto range_it = mCharGlyphInfoMap.equal_range(wch);
- char_glyph_info_map_t::iterator iter =
+ char_glyph_info_map_t::iterator iter =
std::find_if(range_it.first, range_it.second,
[&glyph_type](const char_glyph_info_map_t::value_type& entry)
{
@@ -548,338 +548,338 @@ LLFontGlyphInfo* LLFontFreetype::addGlyph(llwchar wch, EFontGlyphType glyph_type
LLFontGlyphInfo* LLFontFreetype::addGlyphFromFont(const LLFontFreetype *fontp, llwchar wch, U32 glyph_index, EFontGlyphType requested_glyph_type) const
{
LL_PROFILE_ZONE_SCOPED;
- if (mFTFace == NULL)
- return NULL;
-
- llassert(!mIsFallback);
- fontp->renderGlyph(requested_glyph_type, glyph_index);
-
- EFontGlyphType bitmap_glyph_type = EFontGlyphType::Unspecified;
- switch (fontp->mFTFace->glyph->bitmap.pixel_mode)
- {
- case FT_PIXEL_MODE_MONO:
- case FT_PIXEL_MODE_GRAY:
- bitmap_glyph_type = EFontGlyphType::Grayscale;
- break;
- case FT_PIXEL_MODE_BGRA:
- bitmap_glyph_type = EFontGlyphType::Color;
- break;
- default:
- llassert_always(true);
- break;
- }
- S32 width = fontp->mFTFace->glyph->bitmap.width;
- S32 height = fontp->mFTFace->glyph->bitmap.rows;
-
- S32 pos_x, pos_y;
- U32 bitmap_num;
- mFontBitmapCachep->nextOpenPos(width, pos_x, pos_y, bitmap_glyph_type, bitmap_num);
- mAddGlyphCount++;
-
- LLFontGlyphInfo* gi = new LLFontGlyphInfo(glyph_index, requested_glyph_type);
- gi->mXBitmapOffset = pos_x;
- gi->mYBitmapOffset = pos_y;
- gi->mBitmapEntry = std::make_pair(bitmap_glyph_type, bitmap_num);
- gi->mWidth = width;
- gi->mHeight = height;
- gi->mXBearing = fontp->mFTFace->glyph->bitmap_left;
- gi->mYBearing = fontp->mFTFace->glyph->bitmap_top;
- // Convert these from 26.6 units to float pixels.
- gi->mXAdvance = fontp->mFTFace->glyph->advance.x / 64.f;
- gi->mYAdvance = fontp->mFTFace->glyph->advance.y / 64.f;
-
- insertGlyphInfo(wch, gi);
-
- if (requested_glyph_type != bitmap_glyph_type)
- {
- LLFontGlyphInfo* gi_temp = new LLFontGlyphInfo(*gi);
- gi_temp->mGlyphType = bitmap_glyph_type;
- insertGlyphInfo(wch, gi_temp);
- }
-
- if (fontp->mFTFace->glyph->bitmap.pixel_mode == FT_PIXEL_MODE_MONO
- || fontp->mFTFace->glyph->bitmap.pixel_mode == FT_PIXEL_MODE_GRAY)
- {
- U8 *buffer_data = fontp->mFTFace->glyph->bitmap.buffer;
- S32 buffer_row_stride = fontp->mFTFace->glyph->bitmap.pitch;
- U8 *tmp_graydata = NULL;
-
- if (fontp->mFTFace->glyph->bitmap.pixel_mode
- == FT_PIXEL_MODE_MONO)
- {
- // need to expand 1-bit bitmap to 8-bit graymap.
- tmp_graydata = new U8[width * height];
- S32 xpos, ypos;
- for (ypos = 0; ypos < height; ++ypos)
- {
- S32 bm_row_offset = buffer_row_stride * ypos;
- for (xpos = 0; xpos < width; ++xpos)
- {
- U32 bm_col_offsetbyte = xpos / 8;
- U32 bm_col_offsetbit = 7 - (xpos % 8);
- U32 bit =
- !!(buffer_data[bm_row_offset
- + bm_col_offsetbyte
- ] & (1 << bm_col_offsetbit) );
- tmp_graydata[width*ypos + xpos] =
- 255 * bit;
- }
- }
- // use newly-built graymap.
- buffer_data = tmp_graydata;
- buffer_row_stride = width;
- }
-
- setSubImageLuminanceAlpha(pos_x,
- pos_y,
- bitmap_num,
- width,
- height,
- buffer_data,
- buffer_row_stride);
-
- if (tmp_graydata)
- delete[] tmp_graydata;
- }
- else if (fontp->mFTFace->glyph->bitmap.pixel_mode == FT_PIXEL_MODE_BGRA)
- {
- setSubImageBGRA(pos_x,
- pos_y,
- bitmap_num,
- fontp->mFTFace->glyph->bitmap.width,
- fontp->mFTFace->glyph->bitmap.rows,
- fontp->mFTFace->glyph->bitmap.buffer,
- llabs(fontp->mFTFace->glyph->bitmap.pitch));
- } else {
- llassert(false);
- }
-
- LLImageGL *image_gl = mFontBitmapCachep->getImageGL(bitmap_glyph_type, bitmap_num);
- LLImageRaw *image_raw = mFontBitmapCachep->getImageRaw(bitmap_glyph_type, bitmap_num);
- image_gl->setSubImage(image_raw, 0, 0, image_gl->getWidth(), image_gl->getHeight());
-
- return gi;
+ if (mFTFace == NULL)
+ return NULL;
+
+ llassert(!mIsFallback);
+ fontp->renderGlyph(requested_glyph_type, glyph_index);
+
+ EFontGlyphType bitmap_glyph_type = EFontGlyphType::Unspecified;
+ switch (fontp->mFTFace->glyph->bitmap.pixel_mode)
+ {
+ case FT_PIXEL_MODE_MONO:
+ case FT_PIXEL_MODE_GRAY:
+ bitmap_glyph_type = EFontGlyphType::Grayscale;
+ break;
+ case FT_PIXEL_MODE_BGRA:
+ bitmap_glyph_type = EFontGlyphType::Color;
+ break;
+ default:
+ llassert_always(true);
+ break;
+ }
+ S32 width = fontp->mFTFace->glyph->bitmap.width;
+ S32 height = fontp->mFTFace->glyph->bitmap.rows;
+
+ S32 pos_x, pos_y;
+ U32 bitmap_num;
+ mFontBitmapCachep->nextOpenPos(width, pos_x, pos_y, bitmap_glyph_type, bitmap_num);
+ mAddGlyphCount++;
+
+ LLFontGlyphInfo* gi = new LLFontGlyphInfo(glyph_index, requested_glyph_type);
+ gi->mXBitmapOffset = pos_x;
+ gi->mYBitmapOffset = pos_y;
+ gi->mBitmapEntry = std::make_pair(bitmap_glyph_type, bitmap_num);
+ gi->mWidth = width;
+ gi->mHeight = height;
+ gi->mXBearing = fontp->mFTFace->glyph->bitmap_left;
+ gi->mYBearing = fontp->mFTFace->glyph->bitmap_top;
+ // Convert these from 26.6 units to float pixels.
+ gi->mXAdvance = fontp->mFTFace->glyph->advance.x / 64.f;
+ gi->mYAdvance = fontp->mFTFace->glyph->advance.y / 64.f;
+
+ insertGlyphInfo(wch, gi);
+
+ if (requested_glyph_type != bitmap_glyph_type)
+ {
+ LLFontGlyphInfo* gi_temp = new LLFontGlyphInfo(*gi);
+ gi_temp->mGlyphType = bitmap_glyph_type;
+ insertGlyphInfo(wch, gi_temp);
+ }
+
+ if (fontp->mFTFace->glyph->bitmap.pixel_mode == FT_PIXEL_MODE_MONO
+ || fontp->mFTFace->glyph->bitmap.pixel_mode == FT_PIXEL_MODE_GRAY)
+ {
+ U8 *buffer_data = fontp->mFTFace->glyph->bitmap.buffer;
+ S32 buffer_row_stride = fontp->mFTFace->glyph->bitmap.pitch;
+ U8 *tmp_graydata = NULL;
+
+ if (fontp->mFTFace->glyph->bitmap.pixel_mode
+ == FT_PIXEL_MODE_MONO)
+ {
+ // need to expand 1-bit bitmap to 8-bit graymap.
+ tmp_graydata = new U8[width * height];
+ S32 xpos, ypos;
+ for (ypos = 0; ypos < height; ++ypos)
+ {
+ S32 bm_row_offset = buffer_row_stride * ypos;
+ for (xpos = 0; xpos < width; ++xpos)
+ {
+ U32 bm_col_offsetbyte = xpos / 8;
+ U32 bm_col_offsetbit = 7 - (xpos % 8);
+ U32 bit =
+ !!(buffer_data[bm_row_offset
+ + bm_col_offsetbyte
+ ] & (1 << bm_col_offsetbit) );
+ tmp_graydata[width*ypos + xpos] =
+ 255 * bit;
+ }
+ }
+ // use newly-built graymap.
+ buffer_data = tmp_graydata;
+ buffer_row_stride = width;
+ }
+
+ setSubImageLuminanceAlpha(pos_x,
+ pos_y,
+ bitmap_num,
+ width,
+ height,
+ buffer_data,
+ buffer_row_stride);
+
+ if (tmp_graydata)
+ delete[] tmp_graydata;
+ }
+ else if (fontp->mFTFace->glyph->bitmap.pixel_mode == FT_PIXEL_MODE_BGRA)
+ {
+ setSubImageBGRA(pos_x,
+ pos_y,
+ bitmap_num,
+ fontp->mFTFace->glyph->bitmap.width,
+ fontp->mFTFace->glyph->bitmap.rows,
+ fontp->mFTFace->glyph->bitmap.buffer,
+ llabs(fontp->mFTFace->glyph->bitmap.pitch));
+ } else {
+ llassert(false);
+ }
+
+ LLImageGL *image_gl = mFontBitmapCachep->getImageGL(bitmap_glyph_type, bitmap_num);
+ LLImageRaw *image_raw = mFontBitmapCachep->getImageRaw(bitmap_glyph_type, bitmap_num);
+ image_gl->setSubImage(image_raw, 0, 0, image_gl->getWidth(), image_gl->getHeight());
+
+ return gi;
}
LLFontGlyphInfo* LLFontFreetype::getGlyphInfo(llwchar wch, EFontGlyphType glyph_type) const
{
- std::pair<char_glyph_info_map_t::iterator, char_glyph_info_map_t::iterator> range_it = mCharGlyphInfoMap.equal_range(wch);
+ std::pair<char_glyph_info_map_t::iterator, char_glyph_info_map_t::iterator> range_it = mCharGlyphInfoMap.equal_range(wch);
- char_glyph_info_map_t::iterator iter = (EFontGlyphType::Unspecified != glyph_type)
- ? std::find_if(range_it.first, range_it.second, [&glyph_type](const char_glyph_info_map_t::value_type& entry) { return entry.second->mGlyphType == glyph_type; })
- : range_it.first;
- if (iter != range_it.second)
- {
- return iter->second;
- }
- else
- {
- // this glyph doesn't yet exist, so render it and return the result
- return addGlyph(wch, (EFontGlyphType::Unspecified != glyph_type) ? glyph_type : EFontGlyphType::Grayscale);
- }
+ char_glyph_info_map_t::iterator iter = (EFontGlyphType::Unspecified != glyph_type)
+ ? std::find_if(range_it.first, range_it.second, [&glyph_type](const char_glyph_info_map_t::value_type& entry) { return entry.second->mGlyphType == glyph_type; })
+ : range_it.first;
+ if (iter != range_it.second)
+ {
+ return iter->second;
+ }
+ else
+ {
+ // this glyph doesn't yet exist, so render it and return the result
+ return addGlyph(wch, (EFontGlyphType::Unspecified != glyph_type) ? glyph_type : EFontGlyphType::Grayscale);
+ }
}
void LLFontFreetype::insertGlyphInfo(llwchar wch, LLFontGlyphInfo* gi) const
{
- llassert(gi->mGlyphType < EFontGlyphType::Count);
- std::pair<char_glyph_info_map_t::iterator, char_glyph_info_map_t::iterator> range_it = mCharGlyphInfoMap.equal_range(wch);
+ llassert(gi->mGlyphType < EFontGlyphType::Count);
+ std::pair<char_glyph_info_map_t::iterator, char_glyph_info_map_t::iterator> range_it = mCharGlyphInfoMap.equal_range(wch);
- char_glyph_info_map_t::iterator iter =
- std::find_if(range_it.first, range_it.second, [&gi](const char_glyph_info_map_t::value_type& entry) { return entry.second->mGlyphType == gi->mGlyphType; });
- if (iter != range_it.second)
- {
- delete iter->second;
- iter->second = gi;
- }
- else
- {
- mCharGlyphInfoMap.insert(std::make_pair(wch, gi));
- }
+ char_glyph_info_map_t::iterator iter =
+ std::find_if(range_it.first, range_it.second, [&gi](const char_glyph_info_map_t::value_type& entry) { return entry.second->mGlyphType == gi->mGlyphType; });
+ if (iter != range_it.second)
+ {
+ delete iter->second;
+ iter->second = gi;
+ }
+ else
+ {
+ mCharGlyphInfoMap.insert(std::make_pair(wch, gi));
+ }
}
void LLFontFreetype::renderGlyph(EFontGlyphType bitmap_type, U32 glyph_index) const
{
- if (mFTFace == NULL)
- return;
+ if (mFTFace == NULL)
+ return;
- FT_Int32 load_flags = FT_LOAD_FORCE_AUTOHINT;
- if (EFontGlyphType::Color == bitmap_type)
- {
- // We may not actually get a color render so our caller should always examine mFTFace->glyph->bitmap.pixel_mode
- load_flags |= FT_LOAD_COLOR;
- }
+ FT_Int32 load_flags = FT_LOAD_FORCE_AUTOHINT;
+ if (EFontGlyphType::Color == bitmap_type)
+ {
+ // We may not actually get a color render so our caller should always examine mFTFace->glyph->bitmap.pixel_mode
+ load_flags |= FT_LOAD_COLOR;
+ }
- FT_Error error = FT_Load_Glyph(mFTFace, glyph_index, load_flags);
- if (FT_Err_Ok != error)
- {
- std::string message = llformat(
- "Error %d (%s) loading glyph %u: bitmap_type=%u, load_flags=%d",
- error, FT_Error_String(error), glyph_index, bitmap_type, load_flags);
- LL_WARNS_ONCE() << message << LL_ENDL;
- error = FT_Load_Glyph(mFTFace, glyph_index, load_flags ^ FT_LOAD_COLOR);
- llassert_always_msg(FT_Err_Ok == error, message.c_str());
- }
+ FT_Error error = FT_Load_Glyph(mFTFace, glyph_index, load_flags);
+ if (FT_Err_Ok != error)
+ {
+ std::string message = llformat(
+ "Error %d (%s) loading glyph %u: bitmap_type=%u, load_flags=%d",
+ error, FT_Error_String(error), glyph_index, bitmap_type, load_flags);
+ LL_WARNS_ONCE() << message << LL_ENDL;
+ error = FT_Load_Glyph(mFTFace, glyph_index, load_flags ^ FT_LOAD_COLOR);
+ llassert_always_msg(FT_Err_Ok == error, message.c_str());
+ }
- llassert_always(! FT_Render_Glyph(mFTFace->glyph, gFontRenderMode) );
+ llassert_always(! FT_Render_Glyph(mFTFace->glyph, gFontRenderMode) );
- mRenderGlyphCount++;
+ mRenderGlyphCount++;
}
void LLFontFreetype::reset(F32 vert_dpi, F32 horz_dpi)
{
- resetBitmapCache();
- loadFace(mName, mPointSize, vert_dpi ,horz_dpi, mIsFallback, 0);
- if (!mIsFallback)
- {
- // This is the head of the list - need to rebuild ourself and all fallbacks.
- if (mFallbackFonts.empty())
- {
- LL_WARNS() << "LLFontGL::reset(), no fallback fonts present" << LL_ENDL;
- }
- else
- {
- for (fallback_font_vector_t::iterator it = mFallbackFonts.begin(); it != mFallbackFonts.end(); ++it)
- {
- it->first->reset(vert_dpi, horz_dpi);
- }
- }
- }
+ resetBitmapCache();
+ loadFace(mName, mPointSize, vert_dpi ,horz_dpi, mIsFallback, 0);
+ if (!mIsFallback)
+ {
+ // This is the head of the list - need to rebuild ourself and all fallbacks.
+ if (mFallbackFonts.empty())
+ {
+ LL_WARNS() << "LLFontGL::reset(), no fallback fonts present" << LL_ENDL;
+ }
+ else
+ {
+ for (fallback_font_vector_t::iterator it = mFallbackFonts.begin(); it != mFallbackFonts.end(); ++it)
+ {
+ it->first->reset(vert_dpi, horz_dpi);
+ }
+ }
+ }
}
void LLFontFreetype::resetBitmapCache()
{
- for (char_glyph_info_map_t::iterator it = mCharGlyphInfoMap.begin(), end_it = mCharGlyphInfoMap.end();
- it != end_it;
- ++it)
- {
- delete it->second;
- }
- mCharGlyphInfoMap.clear();
- mFontBitmapCachep->reset();
+ for (char_glyph_info_map_t::iterator it = mCharGlyphInfoMap.begin(), end_it = mCharGlyphInfoMap.end();
+ it != end_it;
+ ++it)
+ {
+ delete it->second;
+ }
+ mCharGlyphInfoMap.clear();
+ mFontBitmapCachep->reset();
- // Adding default glyph is skipped for fallback fonts here as well as in loadFace().
- // This if was added as fix for EXT-4971.
- if(!mIsFallback)
- {
- // Add the empty glyph
- addGlyphFromFont(this, 0, 0, EFontGlyphType::Grayscale);
- }
+ // Adding default glyph is skipped for fallback fonts here as well as in loadFace().
+ // This if was added as fix for EXT-4971.
+ if(!mIsFallback)
+ {
+ // Add the empty glyph
+ addGlyphFromFont(this, 0, 0, EFontGlyphType::Grayscale);
+ }
}
void LLFontFreetype::destroyGL()
{
- mFontBitmapCachep->destroyGL();
+ mFontBitmapCachep->destroyGL();
}
const std::string &LLFontFreetype::getName() const
{
- return mName;
+ return mName;
}
static void dumpFontBitmap(const LLImageRaw* image_raw, const std::string& file_name)
{
- LLPointer<LLImagePNG> tmpImage = new LLImagePNG();
- if ( (tmpImage->encode(image_raw, 0.0f)) && (tmpImage->save(gDirUtilp->getExpandedFilename(LL_PATH_LOGS, file_name))) )
- {
- LL_INFOS("Font") << "Successfully saved " << file_name << LL_ENDL;
- }
- else
- {
- LL_WARNS("Font") << "Failed to save " << file_name << LL_ENDL;
- }
+ LLPointer<LLImagePNG> tmpImage = new LLImagePNG();
+ if ( (tmpImage->encode(image_raw, 0.0f)) && (tmpImage->save(gDirUtilp->getExpandedFilename(LL_PATH_LOGS, file_name))) )
+ {
+ LL_INFOS("Font") << "Successfully saved " << file_name << LL_ENDL;
+ }
+ else
+ {
+ LL_WARNS("Font") << "Failed to save " << file_name << LL_ENDL;
+ }
}
void LLFontFreetype::dumpFontBitmaps() const
{
- // Dump all the regular bitmaps (if any)
- for (int idx = 0, cnt = mFontBitmapCachep->getNumBitmaps(EFontGlyphType::Grayscale); idx < cnt; idx++)
- {
- dumpFontBitmap(mFontBitmapCachep->getImageRaw(EFontGlyphType::Grayscale, idx), llformat("%s_%d_%d_%d.png", mFTFace->family_name, (int)(mPointSize * 10), mStyle, idx));
- }
+ // Dump all the regular bitmaps (if any)
+ for (int idx = 0, cnt = mFontBitmapCachep->getNumBitmaps(EFontGlyphType::Grayscale); idx < cnt; idx++)
+ {
+ dumpFontBitmap(mFontBitmapCachep->getImageRaw(EFontGlyphType::Grayscale, idx), llformat("%s_%d_%d_%d.png", mFTFace->family_name, (int)(mPointSize * 10), mStyle, idx));
+ }
- // Dump all the color bitmaps (if any)
- for (int idx = 0, cnt = mFontBitmapCachep->getNumBitmaps(EFontGlyphType::Color); idx < cnt; idx++)
- {
- dumpFontBitmap(mFontBitmapCachep->getImageRaw(EFontGlyphType::Color, idx), llformat("%s_%d_%d_%d_clr.png", mFTFace->family_name, (int)(mPointSize * 10), mStyle, idx));
- }
+ // Dump all the color bitmaps (if any)
+ for (int idx = 0, cnt = mFontBitmapCachep->getNumBitmaps(EFontGlyphType::Color); idx < cnt; idx++)
+ {
+ dumpFontBitmap(mFontBitmapCachep->getImageRaw(EFontGlyphType::Color, idx), llformat("%s_%d_%d_%d_clr.png", mFTFace->family_name, (int)(mPointSize * 10), mStyle, idx));
+ }
}
const LLFontBitmapCache* LLFontFreetype::getFontBitmapCache() const
{
- return mFontBitmapCachep;
+ return mFontBitmapCachep;
}
void LLFontFreetype::setStyle(U8 style)
{
- mStyle = style;
+ mStyle = style;
}
U8 LLFontFreetype::getStyle() const
{
- return mStyle;
+ return mStyle;
}
bool LLFontFreetype::setSubImageBGRA(U32 x, U32 y, U32 bitmap_num, U16 width, U16 height, const U8* data, U32 stride) const
{
- LLImageRaw* image_raw = mFontBitmapCachep->getImageRaw(EFontGlyphType::Color, bitmap_num);
- llassert(!mIsFallback);
- llassert(image_raw && (image_raw->getComponents() == 4));
+ LLImageRaw* image_raw = mFontBitmapCachep->getImageRaw(EFontGlyphType::Color, bitmap_num);
+ llassert(!mIsFallback);
+ llassert(image_raw && (image_raw->getComponents() == 4));
- // NOTE: inspired by LLImageRaw::setSubImage()
- U32* image_data = (U32*)image_raw->getData();
- if (!image_data)
- {
- return false;
- }
+ // NOTE: inspired by LLImageRaw::setSubImage()
+ U32* image_data = (U32*)image_raw->getData();
+ if (!image_data)
+ {
+ return false;
+ }
- for (U32 idxRow = 0; idxRow < height; idxRow++)
- {
- const U32 nSrcRow = height - 1 - idxRow;
- const U32 nSrcOffset = nSrcRow * width * image_raw->getComponents();
- const U32 nDstOffset = (y + idxRow) * image_raw->getWidth() + x;
+ for (U32 idxRow = 0; idxRow < height; idxRow++)
+ {
+ const U32 nSrcRow = height - 1 - idxRow;
+ const U32 nSrcOffset = nSrcRow * width * image_raw->getComponents();
+ const U32 nDstOffset = (y + idxRow) * image_raw->getWidth() + x;
- for (U32 idxCol = 0; idxCol < width; idxCol++)
- {
- U32 nTemp = nSrcOffset + idxCol * 4;
- image_data[nDstOffset + idxCol] = data[nTemp + 3] << 24 | data[nTemp] << 16 | data[nTemp + 1] << 8 | data[nTemp + 2];
- }
- }
+ for (U32 idxCol = 0; idxCol < width; idxCol++)
+ {
+ U32 nTemp = nSrcOffset + idxCol * 4;
+ image_data[nDstOffset + idxCol] = data[nTemp + 3] << 24 | data[nTemp] << 16 | data[nTemp + 1] << 8 | data[nTemp + 2];
+ }
+ }
- return true;
+ return true;
}
void LLFontFreetype::setSubImageLuminanceAlpha(U32 x, U32 y, U32 bitmap_num, U32 width, U32 height, U8 *data, S32 stride) const
{
- LLImageRaw *image_raw = mFontBitmapCachep->getImageRaw(EFontGlyphType::Grayscale, bitmap_num);
+ LLImageRaw *image_raw = mFontBitmapCachep->getImageRaw(EFontGlyphType::Grayscale, bitmap_num);
- llassert(!mIsFallback);
- llassert(image_raw && (image_raw->getComponents() == 2));
-
- U8 *target = image_raw->getData();
+ llassert(!mIsFallback);
+ llassert(image_raw && (image_raw->getComponents() == 2));
+
+ U8 *target = image_raw->getData();
llassert(target);
- if (!data || !target)
- {
- return;
- }
-
- if (0 == stride)
- stride = width;
-
- U32 i, j;
- U32 to_offset;
- U32 from_offset;
- U32 target_width = image_raw->getWidth();
- for (i = 0; i < height; i++)
- {
- to_offset = (y + i)*target_width + x;
- from_offset = (height - 1 - i)*stride;
- for (j = 0; j < width; j++)
- {
- *(target + to_offset*2 + 1) = *(data + from_offset);
- to_offset++;
- from_offset++;
- }
- }
+ if (!data || !target)
+ {
+ return;
+ }
+
+ if (0 == stride)
+ stride = width;
+
+ U32 i, j;
+ U32 to_offset;
+ U32 from_offset;
+ U32 target_width = image_raw->getWidth();
+ for (i = 0; i < height; i++)
+ {
+ to_offset = (y + i)*target_width + x;
+ from_offset = (height - 1 - i)*stride;
+ for (j = 0; j < width; j++)
+ {
+ *(target + to_offset*2 + 1) = *(data + from_offset);
+ to_offset++;
+ from_offset++;
+ }
+ }
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-25 22:11:16 +0000