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path: root/indra/llrender/llfontfreetype.cpp
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Diffstat (limited to 'indra/llrender/llfontfreetype.cpp')
-rw-r--r--indra/llrender/llfontfreetype.cpp148
1 files changed, 93 insertions, 55 deletions
diff --git a/indra/llrender/llfontfreetype.cpp b/indra/llrender/llfontfreetype.cpp
index 78bc6ac433..57154feeec 100644
--- a/indra/llrender/llfontfreetype.cpp
+++ b/indra/llrender/llfontfreetype.cpp
@@ -101,6 +101,7 @@ LLFontGlyphInfo::LLFontGlyphInfo(U32 index)
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
+ mBitmapType(EFontGlyphType::Grayscale),
mBitmapNum(0) // Which bitmap in the bitmap cache contains this glyph
{
}
@@ -159,7 +160,7 @@ void ft_close_cb(FT_Stream stream) {
}
#endif
-BOOL LLFontFreetype::loadFace(const std::string& filename, F32 point_size, F32 vert_dpi, F32 horz_dpi, S32 components, BOOL is_fallback, S32 face_n)
+BOOL LLFontFreetype::loadFace(const std::string& filename, F32 point_size, F32 vert_dpi, F32 horz_dpi, bool use_color, bool is_fallback, S32 face_n)
{
// Don't leak face objects. This is also needed to deal with
// changed font file names.
@@ -223,7 +224,7 @@ BOOL LLFontFreetype::loadFace(const std::string& filename, F32 point_size, F32 v
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(components, max_char_width, max_char_height);
+ mFontBitmapCachep->init(max_char_width, max_char_height);
claimMem(mFontBitmapCachep);
@@ -236,7 +237,7 @@ BOOL LLFontFreetype::loadFace(const std::string& filename, F32 point_size, F32 v
if (!mIsFallback)
{
// Add the default glyph
- addGlyphFromFont(this, 0, 0);
+ addGlyphFromFont(this, 0, 0, EFontGlyphType::Grayscale);
}
mName = filename;
@@ -447,7 +448,7 @@ LLFontGlyphInfo* LLFontFreetype::addGlyph(llwchar wch) const
glyph_index = FT_Get_Char_Index((*iter)->mFTFace, wch);
if (glyph_index)
{
- return addGlyphFromFont(*iter, wch, glyph_index);
+ return addGlyphFromFont(*iter, wch, glyph_index, EFontGlyphType::Color);
}
}
}
@@ -455,29 +456,43 @@ LLFontGlyphInfo* LLFontFreetype::addGlyph(llwchar wch) const
char_glyph_info_map_t::iterator iter = mCharGlyphInfoMap.find(wch);
if (iter == mCharGlyphInfoMap.end())
{
- return addGlyphFromFont(this, wch, glyph_index);
+ return addGlyphFromFont(this, wch, glyph_index, EFontGlyphType::Color);
}
return NULL;
}
-LLFontGlyphInfo* LLFontFreetype::addGlyphFromFont(const LLFontFreetype *fontp, llwchar wch, U32 glyph_index) const
+LLFontGlyphInfo* LLFontFreetype::addGlyphFromFont(const LLFontFreetype *fontp, llwchar wch, U32 glyph_index, EFontGlyphType bitmap_type) const
{
if (mFTFace == NULL)
return NULL;
llassert(!mIsFallback);
- fontp->renderGlyph(glyph_index);
+ fontp->renderGlyph(bitmap_type, glyph_index);
+ switch (fontp->mFTFace->glyph->bitmap.pixel_mode)
+ {
+ case FT_PIXEL_MODE_MONO:
+ case FT_PIXEL_MODE_GRAY:
+ bitmap_type = EFontGlyphType::Grayscale;
+ break;
+ case FT_PIXEL_MODE_BGRA:
+ bitmap_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;
- S32 bitmap_num;
- mFontBitmapCachep->nextOpenPos(width, pos_x, pos_y, bitmap_num);
+ U32 bitmap_num;
+ mFontBitmapCachep->nextOpenPos(width, pos_x, pos_y, bitmap_type, bitmap_num);
mAddGlyphCount++;
LLFontGlyphInfo* gi = new LLFontGlyphInfo(glyph_index);
gi->mXBitmapOffset = pos_x;
gi->mYBitmapOffset = pos_y;
+ gi->mBitmapType = bitmap_type;
gi->mBitmapNum = bitmap_num;
gi->mWidth = width;
gi->mHeight = height;
@@ -489,9 +504,6 @@ LLFontGlyphInfo* LLFontFreetype::addGlyphFromFont(const LLFontFreetype *fontp, l
insertGlyphInfo(wch, gi);
- llassert(fontp->mFTFace->glyph->bitmap.pixel_mode == FT_PIXEL_MODE_MONO
- || fontp->mFTFace->glyph->bitmap.pixel_mode == FT_PIXEL_MODE_GRAY);
-
if (fontp->mFTFace->glyph->bitmap.pixel_mode == FT_PIXEL_MODE_MONO
|| fontp->mFTFace->glyph->bitmap.pixel_mode == FT_PIXEL_MODE_GRAY)
{
@@ -525,39 +537,32 @@ LLFontGlyphInfo* LLFontFreetype::addGlyphFromFont(const LLFontFreetype *fontp, l
buffer_row_stride = width;
}
- switch (mFontBitmapCachep->getNumComponents())
- {
- case 1:
- mFontBitmapCachep->getImageRaw(bitmap_num)->setSubImage(pos_x,
- pos_y,
- width,
- height,
- buffer_data,
- buffer_row_stride,
- TRUE);
- break;
- case 2:
- setSubImageLuminanceAlpha(pos_x,
- pos_y,
- bitmap_num,
- width,
- height,
- buffer_data,
- buffer_row_stride);
- break;
- default:
- break;
- }
+ 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 {
- // we don't know how to handle this pixel format from FreeType;
- // omit it from the font-image.
+ llassert(false);
}
- LLImageGL *image_gl = mFontBitmapCachep->getImageGL(bitmap_num);
- LLImageRaw *image_raw = mFontBitmapCachep->getImageRaw(bitmap_num);
+ LLImageGL *image_gl = mFontBitmapCachep->getImageGL(bitmap_type, bitmap_num);
+ LLImageRaw *image_raw = mFontBitmapCachep->getImageRaw(bitmap_type, bitmap_num);
image_gl->setSubImage(image_raw, 0, 0, image_gl->getWidth(), image_gl->getHeight());
return gi;
@@ -592,12 +597,19 @@ void LLFontFreetype::insertGlyphInfo(llwchar wch, LLFontGlyphInfo* gi) const
}
}
-void LLFontFreetype::renderGlyph(U32 glyph_index) const
+void LLFontFreetype::renderGlyph(EFontGlyphType bitmap_type, U32 glyph_index) const
{
if (mFTFace == NULL)
return;
- llassert_always(! FT_Load_Glyph(mFTFace, glyph_index, FT_LOAD_FORCE_AUTOHINT) );
+ 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;
+ }
+
+ llassert_always(! FT_Load_Glyph(mFTFace, glyph_index, load_flags) );
llassert_always(! FT_Render_Glyph(mFTFace->glyph, gFontRenderMode) );
@@ -607,7 +619,7 @@ void LLFontFreetype::renderGlyph(U32 glyph_index) const
void LLFontFreetype::reset(F32 vert_dpi, F32 horz_dpi)
{
resetBitmapCache();
- loadFace(mName, mPointSize, vert_dpi ,horz_dpi, mFontBitmapCachep->getNumComponents(), mIsFallback);
+ loadFace(mName, mPointSize, vert_dpi ,horz_dpi, true, mIsFallback, 0);
if (!mIsFallback)
{
// This is the head of the list - need to rebuild ourself and all fallbacks.
@@ -645,7 +657,7 @@ void LLFontFreetype::resetBitmapCache()
if(!mIsFallback)
{
// Add the empty glyph
- addGlyphFromFont(this, 0, 0);
+ addGlyphFromFont(this, 0, 0, EFontGlyphType::Grayscale);
}
}
@@ -674,20 +686,17 @@ static void dumpFontBitmap(const LLImageRaw* image_raw, const std::string& file_
void LLFontFreetype::dumpFontBitmaps() const
{
- // Dump all the regular bitmaps
- for (int idx = 0, cnt = mFontBitmapCachep->getNumBitmaps(); idx < cnt; idx++)
+ // Dump all the regular bitmaps (if any)
+ for (int idx = 0, cnt = mFontBitmapCachep->getNumBitmaps(EFontGlyphType::Grayscale); idx < cnt; idx++)
{
- dumpFontBitmap(mFontBitmapCachep->getImageRaw(idx), llformat("%s_%d_%d_%d.png", mFTFace->family_name, (int)(mPointSize * 10), mStyle, 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)
-// if (mFontColorBitmapCachep)
-// {
-// for (int idxBitmap = 0, cntBitmap = mFontColorBitmapCachep->getNumBitmaps(); idxBitmap < cntBitmap; idxBitmap++)
-// {
-// dumpFontBitmap(mFontColorBitmapCachep->getImageRaw(idxBitmap), llformat("%s_%d_%d_clr_%d.png", mFTFace->family_name, (int)mPointSize, mStyle, idxBitmap));
-// }
-// }
+ // 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
@@ -705,9 +714,38 @@ U8 LLFontFreetype::getStyle() const
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));
+
+ // 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 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;
+}
+
void LLFontFreetype::setSubImageLuminanceAlpha(U32 x, U32 y, U32 bitmap_num, U32 width, U32 height, U8 *data, S32 stride) const
{
- LLImageRaw *image_raw = mFontBitmapCachep->getImageRaw(bitmap_num);
+ LLImageRaw *image_raw = mFontBitmapCachep->getImageRaw(EFontGlyphType::Grayscale, bitmap_num);
llassert(!mIsFallback);
llassert(image_raw && (image_raw->getComponents() == 2));
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-20 01:23:40 +0000