F32 LLFontGL::getWidthF32(const llwchar* wchars, const S32 begin_offset, const S32 max_chars, BOOL use_embedded) const
{
if (!wchars || !wchars[0] || max_chars == 0)
{
return 0;
}
const S32 LAST_CHARACTER = LLFont::LAST_CHAR_FULL;
F32 cur_x = 0;
const S32 max_index = begin_offset + max_chars;
for (S32 i = begin_offset; i < max_index && wchars[i] != 0; i++)
{
llwchar wch = wchars[i];
const embedded_data_t* ext_data = use_embedded ? getEmbeddedCharData(wch) : NULL;
if (ext_data)
{
// Handle crappy embedded hack
cur_x += getEmbeddedCharAdvance(ext_data);
if( ((i+1) < max_chars) && (i+1 < max_index))
{
cur_x += EXT_KERNING * sScaleX;
}
}
else
{
cur_x += getXAdvance(wch);
llwchar next_char = wchars[i+1];
if (((i + 1) < max_chars)
&& next_char
&& (next_char < LAST_CHARACTER))
{
// Kern this puppy.
cur_x += getXKerning(wch, next_char);
}
}
// Round after kerning.
cur_x = (F32)llfloor(cur_x + 0.5f);
}
if (cur_x == 0)
{
return cur_x;
}
return cur_x / sScaleX;
}
S32 LLFontGL::firstDrawableChar(const llwchar* wchars, F32 max_pixels, S32 text_len, S32 start_pos, S32 max_chars) const
{
if (!wchars || !wchars[0] || max_chars == 0)
{
return 0;
}
F32 total_width = 0.0;
S32 drawable_chars = 0;
F32 scaled_max_pixels = max_pixels * sScaleX;
S32 start = llmin(start_pos, text_len - 1);
for (S32 i = start; i >= 0; i--)
{
llwchar wch = wchars[i];
const embedded_data_t* ext_data = getEmbeddedCharData(wch);
F32 char_width = ext_data ? getEmbeddedCharAdvance(ext_data) : getXAdvance(wch);
if( scaled_max_pixels < (total_width + char_width) )
{
break;
}
total_width += char_width;
drawable_chars++;
if( max_chars >= 0 && drawable_chars >= max_chars )
{
break;
}
if ( i > 0 )
{
// kerning
total_width += ext_data ? (EXT_KERNING * sScaleX) : getXKerning(wchars[i-1], wch);
}
// Round after kerning.
total_width = llround(total_width);
}
return start_pos - drawable_chars;
}
S32 LLFontGL::charFromPixelOffset(const llwchar* wchars, const S32 begin_offset, F32 target_x, F32 max_pixels, S32 max_chars, BOOL round, BOOL use_embedded) const
{
if (!wchars || !wchars[0] || max_chars == 0)
{
return 0;
}
F32 cur_x = 0;
S32 pos = 0;
target_x *= sScaleX;
// max_chars is S32_MAX by default, so make sure we don't get overflow
const S32 max_index = begin_offset + llmin(S32_MAX - begin_offset, max_chars);
F32 scaled_max_pixels = max_pixels * sScaleX;
for (S32 i = begin_offset; (i < max_index); i++)
{
llwchar wch = wchars[i];
if (!wch)
{
break; // done
}
const embedded_data_t* ext_data = use_embedded ? getEmbeddedCharData(wch) : NULL;
if (ext_data)
{
F32 ext_advance = getEmbeddedCharAdvance(ext_data);
if (round)
{
// Note: if the mouse is on the left half of the character, the pick is to the character's left
// If it's on the right half, the pick is to the right.
if (target_x < cur_x + ext_advance/2)
{
break;
}
}
else
{
if (target_x < cur_x + ext_advance)
{
break;
}
}
if (scaled_max_pixels < cur_x + ext_advance)
{
break;
}
pos++;
cur_x += ext_advance;
if (((i + 1) < max_index)
&& (wchars[(i + 1)]))
{
cur_x += EXT_KERNING * sScaleX;
}
// Round after kerning.
cur_x = (F32)llfloor(cur_x + 0.5f);
}
else
{
F32 char_width = getXAdvance(wch);
if (round)
{
// Note: if the mouse is on the left half of the character, the pick is to the character's left
// If it's on the right half, the pick is to the right.
if (target_x < cur_x + char_width*0.5f)
{
break;
}
}
else if (target_x < cur_x + char_width)
{
break;
}
if (scaled_max_pixels < cur_x + char_width)
{
break;
}
pos++;
cur_x += char_width;
if (((i + 1) < max_index)
&& (wchars[(i + 1)]))
{
llwchar next_char = wchars[i + 1];
// Kern this puppy.
cur_x += getXKerning(wch, next_char);
}
// Round after kerning.
cur_x = (F32)llfloor(cur_x + 0.5f);
}
}
return pos;
}
// Returns the max number of complete characters from text (up to max_chars) that can be drawn in max_pixels
S32 LLFontGL::maxDrawableChars(const llwchar* wchars, F32 max_pixels, S32 max_chars,
BOOL end_on_word_boundary, const BOOL use_embedded,
F32* drawn_pixels) const
{
if (!wchars || !wchars[0] || max_chars == 0)
{
return 0;
}
llassert(max_pixels >= 0.f);
llassert(max_chars >= 0);
BOOL clip = FALSE;
F32 cur_x = 0;
F32 drawn_x = 0;
S32 start_of_last_word = 0;
BOOL in_word = FALSE;
F32 scaled_max_pixels = (F32)llceil(max_pixels * sScaleX);
S32 i;
for (i=0; (i < max_chars); i++)
{
llwchar wch = wchars[i];
if(wch == 0)
{
// Null terminator. We're done.
break;
}
const embedded_data_t* ext_data = use_embedded ? getEmbeddedCharData(wch) : NULL;
if (ext_data)
{
if (in_word)
{
in_word = FALSE;
}
else
{
start_of_last_word = i;
}
cur_x += getEmbeddedCharAdvance(ext_data);
if (scaled_max_pixels < cur_x)
{
clip = TRUE;
break;
}
if (((i+1) < max_chars) && wchars[i+1])
{
cur_x += EXT_KERNING * sScaleX;
}
if( scaled_max_pixels < cur_x )
{
clip = TRUE;
break;
}
}
else
{
if (in_word)
{
if (iswspace(wch))
{
in_word = FALSE;
}
}
else
{
start_of_last_word = i;
if (!iswspace(wch))
{
in_word = TRUE;
}
}
cur_x += getXAdvance(wch);
if (scaled_max_pixels < cur_x)
{
clip = TRUE;
break;
}
if (((i+1) < max_chars) && wchars[i+1])
{
// Kern this puppy.
cur_x += getXKerning(wch, wchars[i+1]);
}
}
// Round after kerning.
cur_x = (F32)llfloor(cur_x + 0.5f);
drawn_x = cur_x;
}
if( clip && end_on_word_boundary && (start_of_last_word != 0) )
{
i = start_of_last_word;
}
if (drawn_pixels)
{
*drawn_pixels = drawn_x;
}
return i;
}
S32 LLFontGL::render(const LLWString &wstr,
const S32 begin_offset,
const F32 x, const F32 y,
const LLColor4 &color,
const HAlign halign, const VAlign valign,
U8 style,
const S32 max_chars, S32 max_pixels,
F32* right_x,
BOOL use_embedded,
BOOL use_ellipses) const
{
if(!sDisplayFont) //do not display texts
{
return wstr.length() ;
}
if (wstr.empty())
{
return 0;
}
gGL.getTexUnit(0)->enable(LLTexUnit::TT_TEXTURE);
S32 scaled_max_pixels = max_pixels == S32_MAX ? S32_MAX : llceil((F32)max_pixels * sScaleX);
// Strip off any style bits that are already accounted for by the font.
style = style & (~getFontDesc().getStyle());
F32 drop_shadow_strength = 0.f;
if (style & (DROP_SHADOW | DROP_SHADOW_SOFT))
{
F32 luminance;
color.calcHSL(NULL, NULL, &luminance);
drop_shadow_strength = clamp_rescale(luminance, 0.35f, 0.6f, 0.f, 1.f);
if (luminance < 0.35f)
{
style = style & ~(DROP_SHADOW | DROP_SHADOW_SOFT);
}
}
gGL.pushMatrix();
glLoadIdentity();
gGL.translatef(floorf(sCurOrigin.mX*sScaleX), floorf(sCurOrigin.mY*sScaleY), sCurOrigin.mZ);
// this code snaps the text origin to a pixel grid to start with
F32 pixel_offset_x = llround((F32)sCurOrigin.mX) - (sCurOrigin.mX);
F32 pixel_offset_y = llround((F32)sCurOrigin.mY) - (sCurOrigin.mY);
gGL.translatef(-pixel_offset_x, -pixel_offset_y, 0.f);
LLFastTimer t(LLFastTimer::FTM_RENDER_FONTS);
gGL.color4fv( color.mV );
S32 chars_drawn = 0;
S32 i;
S32 length;
if (-1 == max_chars)
{
length = (S32)wstr.length() - begin_offset;
}
else
{
length = llmin((S32)wstr.length() - begin_offset, max_chars );
}
F32 cur_x, cur_y, cur_render_x, cur_render_y;
// Not guaranteed to be set correctly
gGL.setSceneBlendType(LLRender::BT_ALPHA);
cur_x = ((F32)x * sScaleX);
cur_y = ((F32)y * sScaleY);
// Offset y by vertical alignment.
switch (valign)
{
case TOP:
cur_y -= mAscender;
break;
case BOTTOM:
cur_y += mDescender;
break;
case VCENTER:
cur_y -= ((mAscender - mDescender)/2.f);
break;
case BASELINE:
// Baseline, do nothing.
break;
default:
break;
}
switch (halign)
{
case LEFT:
break;
case RIGHT:
cur_x -= llmin(scaled_max_pixels, llround(getWidthF32(wstr.c_str(), 0, length) * sScaleX));
break;
case HCENTER:
cur_x -= llmin(scaled_max_pixels, llround(getWidthF32(wstr.c_str(), 0, length) * sScaleX)) / 2;
break;
default:
break;
}
cur_render_y = cur_y;
cur_render_x = cur_x;
F32 start_x = cur_x;
F32 inv_width = 1.f / mFontBitmapCachep->getBitmapWidth();
F32 inv_height = 1.f / mFontBitmapCachep->getBitmapHeight();
const S32 LAST_CHARACTER = LLFont::LAST_CHAR_FULL;
BOOL draw_ellipses = FALSE;
if (use_ellipses && halign == LEFT)
{
// check for too long of a string
if (getWidthF32(wstr.c_str(), 0, max_chars) * sScaleX > scaled_max_pixels)
{
// use four dots for ellipsis width to generate padding
const LLWString dots(utf8str_to_wstring(std::string("....")));
scaled_max_pixels = llmax(0, scaled_max_pixels - llround(getWidthF32(dots.c_str())));
draw_ellipses = TRUE;
}
}
// Remember last-used texture to avoid unnecesssary bind calls.
LLImageGL *last_bound_texture = NULL;
for (i = begin_offset; i < begin_offset + length; i++)
{
llwchar wch = wstr[i];
// Handle embedded characters first, if they're enabled.
// Embedded characters are a hack for notecards
const embedded_data_t* ext_data = use_embedded ? getEmbeddedCharData(wch) : NULL;
if (ext_data)
{
LLImageGL* ext_image = ext_data->mImage;
const LLWString& label = ext_data->mLabel;
F32 ext_height = (F32)ext_image->getHeight() * sScaleY;
F32 ext_width = (F32)ext_image->getWidth() * sScaleX;
F32 ext_advance = (EXT_X_BEARING * sScaleX) + ext_width;
if (!label.empty())
{
ext_advance += (EXT_X_BEARING + getFontExtChar()->getWidthF32( label.c_str() )) * sScaleX;
}
if (start_x + scaled_max_pixels < cur_x + ext_advance)
{
// Not enough room for this character.
break;
}
if (last_bound_texture != ext_image)
{
gGL.getTexUnit(0)->bind(ext_image);
last_bound_texture = ext_image;
}
// snap origin to whole screen pixel
const F32 ext_x = (F32)llround(cur_render_x + (EXT_X_BEARING * sScaleX));
const F32 ext_y = (F32)llround(cur_render_y + (EXT_Y_BEARING * sScaleY + mAscender - mLineHeight));
LLRectf uv_rect(0.f, 1.f, 1.f, 0.f);
LLRectf screen_rect(ext_x, ext_y + ext_height, ext_x + ext_width, ext_y);
drawGlyph(screen_rect, uv_rect, LLColor4::white, style, drop_shadow_strength);
if (!label.empty())
{
gGL.pushMatrix();
//glLoadIdentity();
//gGL.translatef(sCurOrigin.mX, sCurOrigin.mY, 0.0f);
//glScalef(sScaleX, sScaleY, 1.f);
getFontExtChar()->render(label, 0,
/*llfloor*/((ext_x + (F32)ext_image->getWidth() + EXT_X_BEARING) / sScaleX),
/*llfloor*/(cur_y / sScaleY),
color,
halign, BASELINE, NORMAL, S32_MAX, S32_MAX, NULL,
TRUE );
gGL.popMatrix();
}
gGL.color4fv(color.mV);
chars_drawn++;
cur_x += ext_advance;
if (((i + 1) < length) && wstr[i+1])
{
cur_x += EXT_KERNING * sScaleX;
}
cur_render_x = cur_x;
}
else
{
if (!hasGlyph(wch))
{
addChar(wch);
}
const LLFontGlyphInfo* fgi= getGlyphInfo(wch);
if (!fgi)
{
llerrs << "Missing Glyph Info" << llendl;
break;
}
// Per-glyph bitmap texture.
LLImageGL *image_gl = mFontBitmapCachep->getImageGL(fgi->mBitmapNum);
if (last_bound_texture != image_gl)
{
gGL.getTexUnit(0)->bind(image_gl);
last_bound_texture = image_gl;
}
if ((start_x + scaled_max_pixels) < (cur_x + fgi->mXBearing + fgi->mWidth))
{
// Not enough room for this character.
break;
}
// Draw the text at the appropriate location
//Specify vertices and texture coordinates
LLRectf uv_rect((fgi->mXBitmapOffset) * inv_width,
(fgi->mYBitmapOffset + fgi->mHeight + PAD_UVY) * inv_height,
(fgi->mXBitmapOffset + fgi->mWidth) * inv_width,
(fgi->mYBitmapOffset - PAD_UVY) * inv_height);
// snap glyph origin to whole screen pixel
LLRectf screen_rect(llround(cur_render_x + (F32)fgi->mXBearing),
llround(cur_render_y + (F32)fgi->mYBearing),
llround(cur_render_x + (F32)fgi->mXBearing) + (F32)fgi->mWidth,
llround(cur_render_y + (F32)fgi->mYBearing) - (F32)fgi->mHeight);
drawGlyph(screen_rect, uv_rect, color, style, drop_shadow_strength);
chars_drawn++;
cur_x += fgi->mXAdvance;
cur_y += fgi->mYAdvance;
llwchar next_char = wstr[i+1];
if (next_char && (next_char < LAST_CHARACTER))
{
// Kern this puppy.
if (!hasGlyph(next_char))
{
addChar(next_char);
}
cur_x += getXKerning(wch, next_char);
}
// Round after kerning.
// Must do this to cur_x, not just to cur_render_x, otherwise you
// will squish sub-pixel kerned characters too close together.
// For example, "CCCCC" looks bad.
cur_x = (F32)llfloor(cur_x + 0.5f);
//cur_y = (F32)llfloor(cur_y + 0.5f);
cur_render_x = cur_x;
cur_render_y = cur_y;
}
}
if (right_x)
{
*right_x = cur_x / sScaleX;
}
if (style & UNDERLINE)
{
gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
gGL.begin(LLRender::LINES);
gGL.vertex2f(start_x, cur_y - (mDescender));
gGL.vertex2f(cur_x, cur_y - (mDescender));
gGL.end();
}
// *FIX: get this working in all alignment cases, etc.
if (draw_ellipses)
{
// recursively render ellipses at end of string
// we've already reserved enough room
gGL.pushMatrix();
//glLoadIdentity();
//gGL.translatef(sCurOrigin.mX, sCurOrigin.mY, 0.0f);
//glScalef(sScaleX, sScaleY, 1.f);
renderUTF8(std::string("..."),
0,
cur_x / sScaleX, (F32)y,
color,
LEFT, valign,
style,
S32_MAX, max_pixels,
right_x,
FALSE);
gGL.popMatrix();
}
gGL.popMatrix();
return chars_drawn;
}
S32 LLFontGL::render(const LLWString &wstr,
const S32 begin_offset,
const F32 x, const F32 y,
const LLColor4 &color,
const HAlign halign, const VAlign valign,
U8 style,
const S32 max_chars, S32 max_pixels,
F32* right_x,
BOOL use_embedded,
BOOL use_ellipses) const
{
if(!sDisplayFont) //do not display texts
{
return wstr.length() ;
}
LLGLEnable tex(GL_TEXTURE_2D);
if (wstr.empty())
{
return 0;
}
S32 scaled_max_pixels = max_pixels == S32_MAX ? S32_MAX : llceil((F32)max_pixels * sScaleX);
// HACK for better bolding
if (style & BOLD)
{
if (this == LLFontGL::sSansSerif)
{
return LLFontGL::sSansSerifBold->render(
wstr, begin_offset,
x, y,
color,
halign, valign,
(style & ~BOLD),
max_chars, max_pixels,
right_x, use_embedded);
}
}
F32 drop_shadow_strength = 0.f;
if (style & (DROP_SHADOW | DROP_SHADOW_SOFT))
{
F32 luminance;
color.calcHSL(NULL, NULL, &luminance);
drop_shadow_strength = clamp_rescale(luminance, 0.35f, 0.6f, 0.f, 1.f);
if (luminance < 0.35f)
{
style = style & ~(DROP_SHADOW | DROP_SHADOW_SOFT);
}
}
gGL.pushMatrix();
glLoadIdentity();
gGL.translatef(floorf(sCurOrigin.mX*sScaleX), floorf(sCurOrigin.mY*sScaleY), sCurOrigin.mZ);
//glScalef(sScaleX, sScaleY, 1.0f);
// avoid half pixels
// RN: if we're going to this trouble, might as well snap to nearest pixel all the time
// but the plan is to get rid of this so that fonts "just work"
//F32 half_pixel_distance = llabs(fmodf(sCurOrigin.mX * sScaleX, 1.f) - 0.5f);
//if (half_pixel_distance < PIXEL_BORDER_THRESHOLD)
//{
gGL.translatef(PIXEL_CORRECTION_DISTANCE*sScaleX, 0.f, 0.f);
//}
// this code would just snap to pixel grid, although it seems to introduce more jitter
//F32 pixel_offset_x = llround(sCurOrigin.mX * sScaleX) - (sCurOrigin.mX * sScaleX);
//F32 pixel_offset_y = llround(sCurOrigin.mY * sScaleY) - (sCurOrigin.mY * sScaleY);
//gGL.translatef(-pixel_offset_x, -pixel_offset_y, 0.f);
// scale back to native pixel size
//glScalef(1.f / sScaleX, 1.f / sScaleY, 1.f);
//glScaled(1.0 / (F64) sScaleX, 1.0 / (F64) sScaleY, 1.0f);
LLFastTimer t(LLFastTimer::FTM_RENDER_FONTS);
gGL.color4fv( color.mV );
S32 chars_drawn = 0;
S32 i;
S32 length;
if (-1 == max_chars)
{
length = (S32)wstr.length() - begin_offset;
}
else
{
length = llmin((S32)wstr.length() - begin_offset, max_chars );
}
F32 cur_x, cur_y, cur_render_x, cur_render_y;
// Bind the font texture
mImageGLp->bind(0);
// Not guaranteed to be set correctly
gGL.setSceneBlendType(LLRender::BT_ALPHA);
cur_x = ((F32)x * sScaleX);
cur_y = ((F32)y * sScaleY);
// Offset y by vertical alignment.
switch (valign)
{
case TOP:
cur_y -= mAscender;
break;
case BOTTOM:
cur_y += mDescender;
break;
case VCENTER:
cur_y -= ((mAscender - mDescender)/2.f);
break;
case BASELINE:
// Baseline, do nothing.
break;
default:
break;
}
switch (halign)
{
case LEFT:
break;
case RIGHT:
cur_x -= llmin(scaled_max_pixels, llround(getWidthF32(wstr.c_str(), 0, length) * sScaleX));
break;
case HCENTER:
cur_x -= llmin(scaled_max_pixels, llround(getWidthF32(wstr.c_str(), 0, length) * sScaleX)) / 2;
break;
default:
break;
}
// Round properly.
//cur_render_y = (F32)llfloor(cur_y/sScaleY + 0.5f)*sScaleY;
//cur_render_x = (F32)llfloor(cur_x/sScaleX + 0.5f)*sScaleX;
cur_render_y = cur_y;
cur_render_x = cur_x;
F32 start_x = cur_x;
F32 inv_width = 1.f / mImageGLp->getWidth();
F32 inv_height = 1.f / mImageGLp->getHeight();
const S32 LAST_CHARACTER = LLFont::LAST_CHAR_FULL;
BOOL draw_ellipses = FALSE;
if (use_ellipses && halign == LEFT)
{
// check for too long of a string
if (getWidthF32(wstr.c_str(), 0, max_chars) * sScaleX > scaled_max_pixels)
{
// use four dots for ellipsis width to generate padding
const LLWString dots(utf8str_to_wstring(std::string("....")));
scaled_max_pixels = llmax(0, scaled_max_pixels - llround(getWidthF32(dots.c_str())));
draw_ellipses = TRUE;
}
}
for (i = begin_offset; i < begin_offset + length; i++)
{
llwchar wch = wstr[i];
// Handle embedded characters first, if they're enabled.
// Embedded characters are a hack for notecards
const embedded_data_t* ext_data = use_embedded ? getEmbeddedCharData(wch) : NULL;
if (ext_data)
{
LLImageGL* ext_image = ext_data->mImage;
const LLWString& label = ext_data->mLabel;
F32 ext_height = (F32)ext_image->getHeight() * sScaleY;
F32 ext_width = (F32)ext_image->getWidth() * sScaleX;
F32 ext_advance = (EXT_X_BEARING * sScaleX) + ext_width;
if (!label.empty())
{
ext_advance += (EXT_X_BEARING + gExtCharFont->getWidthF32( label.c_str() )) * sScaleX;
}
if (start_x + scaled_max_pixels < cur_x + ext_advance)
{
// Not enough room for this character.
break;
}
ext_image->bind();
const F32 ext_x = cur_render_x + (EXT_X_BEARING * sScaleX);
const F32 ext_y = cur_render_y + (EXT_Y_BEARING * sScaleY + mAscender - mLineHeight);
LLRectf uv_rect(0.f, 1.f, 1.f, 0.f);
LLRectf screen_rect(ext_x, ext_y + ext_height, ext_x + ext_width, ext_y);
drawGlyph(screen_rect, uv_rect, LLColor4::white, style, drop_shadow_strength);
if (!label.empty())
{
gGL.pushMatrix();
//glLoadIdentity();
//gGL.translatef(sCurOrigin.mX, sCurOrigin.mY, 0.0f);
//glScalef(sScaleX, sScaleY, 1.f);
gExtCharFont->render(label, 0,
/*llfloor*/((ext_x + (F32)ext_image->getWidth() + EXT_X_BEARING) / sScaleX),
/*llfloor*/(cur_y / sScaleY),
color,
halign, BASELINE, NORMAL, S32_MAX, S32_MAX, NULL,
TRUE );
gGL.popMatrix();
}
gGL.color4fv(color.mV);
chars_drawn++;
cur_x += ext_advance;
if (((i + 1) < length) && wstr[i+1])
{
cur_x += EXT_KERNING * sScaleX;
}
cur_render_x = cur_x;
// Bind the font texture
mImageGLp->bind();
}
else
{
if (!hasGlyph(wch))
{
(const_cast<LLFontGL*>(this))->addChar(wch);
}
const LLFontGlyphInfo* fgi= getGlyphInfo(wch);
if (!fgi)
{
llerrs << "Missing Glyph Info" << llendl;
break;
}
if ((start_x + scaled_max_pixels) < (cur_x + fgi->mXBearing + fgi->mWidth))
{
// Not enough room for this character.
break;
}
// Draw the text at the appropriate location
//Specify vertices and texture coordinates
LLRectf uv_rect((fgi->mXBitmapOffset - PAD_AMT) * inv_width,
(fgi->mYBitmapOffset + fgi->mHeight + PAD_AMT) * inv_height,
(fgi->mXBitmapOffset + fgi->mWidth + PAD_AMT) * inv_width,
(fgi->mYBitmapOffset - PAD_AMT) * inv_height);
LLRectf screen_rect(cur_render_x + (F32)fgi->mXBearing - PAD_AMT,
cur_render_y + (F32)fgi->mYBearing + PAD_AMT,
cur_render_x + (F32)fgi->mXBearing + (F32)fgi->mWidth + PAD_AMT,
cur_render_y + (F32)fgi->mYBearing - (F32)fgi->mHeight - PAD_AMT);
drawGlyph(screen_rect, uv_rect, color, style, drop_shadow_strength);
chars_drawn++;
cur_x += fgi->mXAdvance;
cur_y += fgi->mYAdvance;
llwchar next_char = wstr[i+1];
if (next_char && (next_char < LAST_CHARACTER))
{
// Kern this puppy.
if (!hasGlyph(next_char))
{
(const_cast<LLFontGL*>(this))->addChar(next_char);
}
cur_x += getXKerning(wch, next_char);
}
// Round after kerning.
// Must do this to cur_x, not just to cur_render_x, otherwise you
// will squish sub-pixel kerned characters too close together.
// For example, "CCCCC" looks bad.
cur_x = (F32)llfloor(cur_x + 0.5f);
//cur_y = (F32)llfloor(cur_y + 0.5f);
cur_render_x = cur_x;
cur_render_y = cur_y;
}
}
if (right_x)
{
*right_x = cur_x / sScaleX;
}
if (style & UNDERLINE)
{
LLGLSNoTexture no_texture;
gGL.begin(LLVertexBuffer::LINES);
gGL.vertex2f(start_x, cur_y - (mDescender));
gGL.vertex2f(cur_x, cur_y - (mDescender));
gGL.end();
}
// *FIX: get this working in all alignment cases, etc.
if (draw_ellipses)
{
// recursively render ellipses at end of string
// we've already reserved enough room
gGL.pushMatrix();
//glLoadIdentity();
//gGL.translatef(sCurOrigin.mX, sCurOrigin.mY, 0.0f);
//glScalef(sScaleX, sScaleY, 1.f);
renderUTF8(std::string("..."),
0,
cur_x / sScaleX, (F32)y,
color,
LEFT, valign,
style,
S32_MAX, max_pixels,
right_x,
FALSE);
gGL.popMatrix();
}
gGL.popMatrix();
return chars_drawn;
}
