void CWin32Font::GetCharRGBA(wchar_t ch, int rgbaWide, int rgbaTall, unsigned char *rgba)
{
unsigned int glyphIndex = FT_Get_Char_Index(m_FTFace, ch);
if (!glyphIndex || FT_Load_Glyph(m_FTFace, glyphIndex, FT_LOAD_NO_HINTING | FT_LOAD_RENDER))
return;
FT_GlyphSlot glyph = m_FTFace->glyph;
FT_Bitmap &bitmap = glyph->bitmap;
int srcY = 0;
int dstY = m_iBaseline - glyph->bitmap_top;
if (dstY < 0)
{
srcY = -dstY;
dstY = 0;
}
dstY += m_iOutlineSize;
int dstX = m_iOutlineSize;
int wide = bitmap.width;
if ((dstX + wide + m_iOutlineSize) > rgbaWide)
wide = rgbaWide - dstX - m_iOutlineSize;
int tall = bitmap.rows - srcY;
if ((dstY + tall + m_iOutlineSize) > rgbaTall)
tall = rgbaTall - dstY - m_iOutlineSize;
dstX <<= 2;
rgbaWide <<= 2;
unsigned char *srcRow = bitmap.buffer + srcY * bitmap.pitch, *src;
unsigned char *dstRow = rgba + dstY * rgbaWide, *dst;
int x;
for (; tall-- > 0; srcRow += bitmap.pitch, dstRow += rgbaWide)
{
for (x = wide, src = srcRow, dst = dstRow + dstX; x-- > 0; ++src, dst += 4)
{
if (!(*src))
continue;
dst[0] = dst[1] = dst[2] = 255;
dst[3] = *src;
}
}
rgbaWide >>= 2;
ApplyDropShadowToTexture(rgbaWide, rgbaTall, rgba, m_iDropShadowOffset);
ApplyOutlineToTexture(rgbaWide, rgbaTall, rgba, m_iOutlineSize);
ApplyGaussianBlurToTexture(rgbaWide, rgbaTall, rgba, m_iBlur);
ApplyScanlineEffectToTexture(rgbaWide, rgbaTall, rgba, m_iScanLines);
ApplyRotaryEffectToTexture(rgbaWide, rgbaTall, rgba, m_bRotary);
}
void CWin32Font::GetCharRGBA(int ch, int rgbaX, int rgbaY, int rgbaWide, int rgbaTall, unsigned char *rgba)
{
int a, b, c;
GetCharABCWidths(ch, a, b, c);
::SelectObject(m_hDC, m_hFont);
int wide = b;
if (m_bUnderlined)
wide += (a + c);
int tall = m_iHeight;
GLYPHMETRICS glyphMetrics;
MAT2 mat2 = { { 0, 1 }, { 0, 0 }, { 0, 0 }, { 0, 1 } };
int bytesNeeded = 0;
bool bShouldAntialias = m_bAntiAliased;
if (ch > 0x00FF && !(m_iFlags & vgui::ISurface::FONTFLAG_CUSTOM))
bShouldAntialias = false;
if (!s_bSupportsUnicode)
{
if (ch == 'I' || ch == '1')
bShouldAntialias = false;
if (m_iHeight >= 13)
bShouldAntialias = false;
}
if (bShouldAntialias)
{
::SelectObject(m_hDC, m_hFont);
bytesNeeded = ::GetGlyphOutlineW(m_hDC, ch, GGO_GRAY8_BITMAP, &glyphMetrics, 0, NULL, &mat2);
}
if (bytesNeeded > 0)
{
unsigned char *lpbuf = (unsigned char *)_alloca(bytesNeeded);
::GetGlyphOutlineW(m_hDC, ch, GGO_GRAY8_BITMAP, &glyphMetrics, bytesNeeded, lpbuf, &mat2);
wide = glyphMetrics.gmBlackBoxX;
while (wide % 4 != 0)
wide++;
int pushDown = m_iAscent - glyphMetrics.gmptGlyphOrigin.y;
int xstart = 0;
if ((int)glyphMetrics.gmBlackBoxX >= b + 2)
xstart = (glyphMetrics.gmBlackBoxX - b) / 2;
for (unsigned int j = 0; j < glyphMetrics.gmBlackBoxY; j++)
{
for (unsigned int i = xstart; i < glyphMetrics.gmBlackBoxX; i++)
{
int x = i - xstart + m_iBlur + m_iOutlineSize;
int y = j + pushDown;
if ((x < rgbaWide) && (y < rgbaTall))
{
unsigned char grayscale = lpbuf[(j * wide + i)];
float r, g, b, a;
if (grayscale)
{
r = g = b = 1.0f;
a = (grayscale + 0) / 64.0f;
if (a > 1.0f) a = 1.0f;
}
else
r = g = b = a = 0.0f;
if (ch == '\t')
r = g = b = 0;
unsigned char *dst = &rgba[(y*rgbaWide+x)*4];
dst[0] = (unsigned char)(r * 255.0f);
dst[1] = (unsigned char)(g * 255.0f);
dst[2] = (unsigned char)(b * 255.0f);
dst[3] = (unsigned char)(a * 255.0f);
}
}
}
}
else
{
::SetBkColor(m_hDC, RGB(0, 0, 0));
::SetTextColor(m_hDC, RGB(255, 255, 255));
::SetBkMode(m_hDC, OPAQUE);
if (m_bUnderlined)
::MoveToEx(m_hDC, 0, 0, NULL);
else
::MoveToEx(m_hDC, -a, 0, NULL);
wchar_t wch = (wchar_t)ch;
if (s_bSupportsUnicode)
{
::ExtTextOutW(m_hDC, 0, 0, 0, NULL, &wch, 1, NULL);
}
else
{
RECT rect = { 0, 0, wide, tall};
::ExtTextOut(m_hDC, 0, 0, ETO_OPAQUE, &rect, NULL, 0, NULL);
char mbcs[6] = { 0 };
::WideCharToMultiByte(CP_ACP, 0, &wch, 1, mbcs, sizeof(mbcs), NULL, NULL);
::ExtTextOutA(m_hDC, 0, 0, 0, NULL, mbcs, strlen(mbcs), NULL);
}
::SetBkMode(m_hDC, TRANSPARENT);
if (wide > m_rgiBitmapSize[0])
wide = m_rgiBitmapSize[0];
if (tall > m_rgiBitmapSize[1])
tall = m_rgiBitmapSize[1];
for (int j = (int)m_iOutlineSize; j < tall - (int)m_iOutlineSize; j++)
{
for (int i = (int)m_iOutlineSize; i < wide - (int)m_iDropShadowOffset - (int)m_iOutlineSize; i++)
{
if ((i < rgbaWide) && (j < rgbaTall))
{
unsigned char *src = &m_pBuf[(i + j*m_rgiBitmapSize[0])*4];
unsigned char *dst = &rgba[(i + j*rgbaWide)*4];
unsigned char r, g, b;
if (ch == '\t')
{
r = g = b = 0;
}
else
{
r = src[0];
g = src[1];
b = src[2];
}
dst[0] = r;
dst[1] = g;
dst[2] = b;
dst[3] = (unsigned char)((float)r * 0.34f + (float)g * 0.55f + (float)b * 0.11f);
}
}
}
if (m_iDropShadowOffset)
{
unsigned char *dst = &rgba[((m_iHeight - 1) * rgbaWide) * 4];
for (int i = 0; i < wide; i++)
{
dst[0] = 0;
dst[1] = 0;
dst[2] = 0;
dst[3] = 0;
dst += 4;
}
}
}
if (m_iDropShadowOffset)
ApplyDropShadowToTexture(rgbaX, rgbaY, rgbaWide, rgbaTall, wide, tall, rgba);
if (m_iOutlineSize)
ApplyOutlineToTexture(rgbaX, rgbaY, rgbaWide, rgbaTall, wide, tall, rgba);
ApplyGaussianBlurToTexture(rgbaX, rgbaY, rgbaWide, rgbaTall, rgba);
ApplyScanlineEffectToTexture(rgbaX, rgbaY, rgbaWide, rgbaTall, rgba);
ApplyRotaryEffectToTexture(rgbaX, rgbaY, rgbaWide, rgbaTall, rgba);
}
//-----------------------------------------------------------------------------
// Purpose: writes the char into the specified 32bpp texture
//-----------------------------------------------------------------------------
void CWin32Font::GetCharRGBA(wchar_t ch, int rgbaWide, int rgbaTall, unsigned char *rgba)
{
int a, b, c;
GetCharABCWidths(ch, a, b, c);
// set us up to render into our dib
::SelectObject(m_hDC, m_hFont);
int wide = b;
if ( m_bUnderlined )
{
wide += ( a + c );
}
int tall = m_iHeight;
GLYPHMETRICS glyphMetrics;
MAT2 mat2 = { { 0, 1}, { 0, 0}, { 0, 0}, { 0, 1}};
int bytesNeeded = 0;
bool bShouldAntialias = m_bAntiAliased;
// filter out
if ( ch > 0x00FF && !(m_iFlags & vgui::ISurface::FONTFLAG_CUSTOM) )
{
bShouldAntialias = false;
}
if ( !s_bSupportsUnicode )
{
// win98 hack, don't antialias some characters that ::GetGlyphOutline() produces bad results for
if (ch == 'I' || ch == '1')
{
bShouldAntialias = false;
}
// don't antialias big fonts at all (since win98 often produces bad results)
if (m_iHeight >= 13)
{
bShouldAntialias = false;
}
}
// only antialias latin characters, since it essentially always fails for asian characters
if (bShouldAntialias)
{
// try and get the glyph directly
::SelectObject(m_hDC, m_hFont);
bytesNeeded = ::GetGlyphOutline(m_hDC, ch, GGO_GRAY8_BITMAP, &glyphMetrics, 0, NULL, &mat2);
}
if (bytesNeeded > 0)
{
// take it
unsigned char *lpbuf = (unsigned char *)_alloca(bytesNeeded);
::GetGlyphOutline(m_hDC, ch, GGO_GRAY8_BITMAP, &glyphMetrics, bytesNeeded, lpbuf, &mat2);
// rows are on DWORD boundaries
wide = glyphMetrics.gmBlackBoxX;
while (wide % 4 != 0)
{
wide++;
}
// see where we should start rendering
int pushDown = m_iAscent - glyphMetrics.gmptGlyphOrigin.y;
// set where we start copying from
int xstart = 0;
// don't copy the first set of pixels if the antialiased bmp is bigger than the char width
if ((int)glyphMetrics.gmBlackBoxX >= b + 2)
{
xstart = (glyphMetrics.gmBlackBoxX - b) / 2;
}
// iterate through copying the generated dib into the texture
for (unsigned int j = 0; j < glyphMetrics.gmBlackBoxY; j++)
{
for (unsigned int i = xstart; i < glyphMetrics.gmBlackBoxX; i++)
{
int x = i - xstart + m_iBlur + m_iOutlineSize;
int y = j + pushDown;
if ((x < rgbaWide) && (y < rgbaTall))
{
unsigned char grayscale = lpbuf[(j*wide+i)];
float r, g, b, a;
if (grayscale)
{
r = g = b = 1.0f;
a = (grayscale + 0) / 64.0f;
if (a > 1.0f) a = 1.0f;
}
else
{
r = g = b = a = 0.0f;
}
// Don't want anything drawn for tab characters.
if (ch == '\t')
{
r = g = b = 0;
}
unsigned char *dst = &rgba[(y*rgbaWide+x)*4];
dst[0] = (unsigned char)(r * 255.0f);
dst[1] = (unsigned char)(g * 255.0f);
dst[2] = (unsigned char)(b * 255.0f);
dst[3] = (unsigned char)(a * 255.0f);
}
}
}
}
else
{
// use render-to-bitmap to get our font texture
::SetBkColor(m_hDC, RGB(0, 0, 0));
::SetTextColor(m_hDC, RGB(255, 255, 255));
::SetBkMode(m_hDC, OPAQUE);
if ( m_bUnderlined )
{
::MoveToEx(m_hDC, 0, 0, NULL);
}
else
{
::MoveToEx(m_hDC, -a, 0, NULL);
}
// render the character
wchar_t wch = (wchar_t)ch;
if (s_bSupportsUnicode)
{
// just use the unicode renderer
::ExtTextOutW(m_hDC, 0, 0, 0, NULL, &wch, 1, NULL);
}
else
{
// clear the background first (it may not get done automatically in win98/ME
RECT rect = { 0, 0, wide, tall};
::ExtTextOut(m_hDC, 0, 0, ETO_OPAQUE, &rect, NULL, 0, NULL);
// convert the character using the current codepage
char mbcs[6] = { 0 };
::WideCharToMultiByte(CP_ACP, 0, &wch, 1, mbcs, sizeof(mbcs), NULL, NULL);
::ExtTextOutA(m_hDC, 0, 0, 0, NULL, mbcs, strlen(mbcs), NULL);
}
::SetBkMode(m_hDC, TRANSPARENT);
if (wide > m_rgiBitmapSize[0])
{
wide = m_rgiBitmapSize[0];
}
if (tall > m_rgiBitmapSize[1])
{
tall = m_rgiBitmapSize[1];
}
// iterate through copying the generated dib into the texture
for (int j = (int)m_iOutlineSize; j < tall - (int)m_iOutlineSize; j++ )
{
// only copy from within the dib, ignore the outline border we are artificially adding
for (int i = (int)m_iOutlineSize; i < wide - (int)m_iDropShadowOffset - (int)m_iOutlineSize; i++)
{
if ((i < rgbaWide) && (j < rgbaTall))
{
unsigned char *src = &m_pBuf[(i + j*m_rgiBitmapSize[0])*4];
unsigned char *dst = &rgba[(i + j*rgbaWide)*4];
// Don't want anything drawn for tab characters.
unsigned char r, g, b;
if ( ch == '\t' )
{
r = g = b = 0;
}
else
{
r = src[0];
g = src[1];
b = src[2];
}
// generate alpha based on luminance conversion
dst[0] = r;
dst[1] = g;
dst[2] = b;
dst[3] = (unsigned char)((float)r * 0.34f + (float)g * 0.55f + (float)b * 0.11f);
}
}
}
// if we have a dropshadow, we need to clean off the bottom row of pixels
// this is because of a bug in winME that writes noise to them, only on the first time the game is run after a reboot
// the bottom row should guaranteed to be empty to fit the dropshadow
if ( m_iDropShadowOffset )
{
unsigned char *dst = &rgba[((m_iHeight - 1) * rgbaWide) * 4];
for (int i = 0; i < wide; i++)
{
dst[0] = 0;
dst[1] = 0;
dst[2] = 0;
dst[3] = 0;
dst += 4;
}
}
}
// apply requested effects in specified order
ApplyDropShadowToTexture( rgbaWide, rgbaTall, rgba, m_iDropShadowOffset );
ApplyOutlineToTexture( rgbaWide, rgbaTall, rgba, m_iOutlineSize );
ApplyGaussianBlurToTexture( rgbaWide, rgbaTall, rgba, m_iBlur );
ApplyScanlineEffectToTexture( rgbaWide, rgbaTall, rgba, m_iScanLines );
ApplyRotaryEffectToTexture( rgbaWide, rgbaTall, rgba, m_bRotary );
}
