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Commit 17080cc1 authored by Byeongsik Jeon's avatar Byeongsik Jeon Committed by Alexandre Julliard
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gdi32: Add helper functions to get GGO glyph bitmap.

Signed-off-by: 's avatarByeongsik Jeon <bsjeon@hanmail.net> Signed-off-by: 's avatarHuw Davies <huw@codeweavers.com> Signed-off-by: 's avatarAlexandre Julliard <julliard@winehq.org>
parent fe5f0ebf
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Showing with 309 additions and 291 deletions
dlls/gdi32/freetype.c
View file @ 17080cc1
......@@ -6988,6 +6988,302 @@ static void compute_metrics( GdiFont *incoming_font, GdiFont *font,
gm->gmCellIncX, gm->gmCellIncY, abc->abcA, abc->abcB, abc->abcC );
}
static const BYTE masks[8] = {0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01};
static DWORD get_mono_glyph_bitmap( FT_GlyphSlot glyph, FT_BBox bbox,
BOOL fake_bold, BOOL needs_transform, FT_Matrix matrices[3],
DWORD buflen, BYTE *buf )
{
DWORD width = (bbox.xMax - bbox.xMin ) >> 6;
DWORD height = (bbox.yMax - bbox.yMin ) >> 6;
DWORD pitch = ((width + 31) >> 5) << 2;
DWORD needed = pitch * height;
FT_Bitmap ft_bitmap;
BYTE *src, *dst;
INT w, h, x;
if (!buf || !buflen) return needed;
if (!needed) return GDI_ERROR; /* empty glyph */
if (needed > buflen) return GDI_ERROR;
switch (glyph->format)
{
case FT_GLYPH_FORMAT_BITMAP:
src = glyph->bitmap.buffer;
dst = buf;
w = min( pitch, (glyph->bitmap.width + 7) >> 3 );
h = min( height, glyph->bitmap.rows );
while (h--)
{
if (!fake_bold)
memcpy( dst, src, w );
else
{
dst[0] = 0;
for (x = 0; x < w; x++)
{
dst[x] = (dst[x] & 0x80) | (src[x] >> 1) | src[x];
if (x + 1 < pitch)
dst[x + 1] = (src[x] & 0x01) << 7;
}
}
src += glyph->bitmap.pitch;
dst += pitch;
}
break;
case FT_GLYPH_FORMAT_OUTLINE:
ft_bitmap.width = width;
ft_bitmap.rows = height;
ft_bitmap.pitch = pitch;
ft_bitmap.pixel_mode = FT_PIXEL_MODE_MONO;
ft_bitmap.buffer = buf;
if (needs_transform)
pFT_Outline_Transform( &glyph->outline, &matrices[matrix_vert] );
pFT_Outline_Translate( &glyph->outline, -bbox.xMin, -bbox.yMin );
/* Note: FreeType will only set 'black' bits for us. */
memset( buf, 0, buflen );
pFT_Outline_Get_Bitmap( library, &glyph->outline, &ft_bitmap );
break;
default:
FIXME( "loaded glyph format %x\n", glyph->format );
return GDI_ERROR;
}
return needed;
}
static DWORD get_antialias_glyph_bitmap( FT_GlyphSlot glyph, FT_BBox bbox, UINT format,
BOOL fake_bold, BOOL needs_transform, FT_Matrix matrices[3],
DWORD buflen, BYTE *buf )
{
DWORD width = (bbox.xMax - bbox.xMin ) >> 6;
DWORD height = (bbox.yMax - bbox.yMin ) >> 6;
DWORD pitch = (width + 3) / 4 * 4;
DWORD needed = pitch * height;
FT_Bitmap ft_bitmap;
INT w, h, x, max_level;
BYTE *src, *dst;
if (!buf || !buflen) return needed;
if (!needed) return GDI_ERROR; /* empty glyph */
if (needed > buflen) return GDI_ERROR;
max_level = get_max_level( format );
switch (glyph->format)
{
case FT_GLYPH_FORMAT_BITMAP:
src = glyph->bitmap.buffer;
dst = buf;
memset( buf, 0, buflen );
w = min( pitch, glyph->bitmap.width );
h = min( height, glyph->bitmap.rows );
while (h--)
{
for (x = 0; x < w; x++)
{
if (src[x / 8] & masks[x % 8])
{
dst[x] = max_level;
if (fake_bold && x + 1 < pitch) dst[x + 1] = max_level;
}
}
src += glyph->bitmap.pitch;
dst += pitch;
}
break;
case FT_GLYPH_FORMAT_OUTLINE:
ft_bitmap.width = width;
ft_bitmap.rows = height;
ft_bitmap.pitch = pitch;
ft_bitmap.pixel_mode = FT_PIXEL_MODE_GRAY;
ft_bitmap.buffer = buf;
if (needs_transform)
pFT_Outline_Transform( &glyph->outline, &matrices[matrix_vert] );
pFT_Outline_Translate( &glyph->outline, -bbox.xMin, -bbox.yMin );
memset( buf, 0, buflen );
pFT_Outline_Get_Bitmap( library, &glyph->outline, &ft_bitmap );
if (max_level != 255)
{
INT row, col;
BYTE *ptr, *start;
for (row = 0, start = buf; row < height; row++)
{
for (col = 0, ptr = start; col < width; col++, ptr++)
*ptr = (((int)*ptr) * (max_level + 1)) / 256;
start += pitch;
}
}
break;
default:
FIXME("loaded glyph format %x\n", glyph->format);
return GDI_ERROR;
}
return needed;
}
static DWORD get_subpixel_glyph_bitmap( FT_GlyphSlot glyph, FT_BBox bbox, UINT format,
BOOL fake_bold, BOOL needs_transform, FT_Matrix matrices[3],
GLYPHMETRICS *gm, DWORD buflen, BYTE *buf )
{
DWORD width = (bbox.xMax - bbox.xMin ) >> 6;
DWORD height = (bbox.yMax - bbox.yMin ) >> 6;
DWORD pitch, needed = 0;
BYTE *src, *dst;
INT w, h, x;
switch (glyph->format)
{
case FT_GLYPH_FORMAT_BITMAP:
pitch = width * 4;
needed = pitch * height;
if (!buf || !buflen) break;
if (!needed) return GDI_ERROR; /* empty glyph */
if (needed > buflen) return GDI_ERROR;
src = glyph->bitmap.buffer;
dst = buf;
memset( buf, 0, buflen );
w = min( width, glyph->bitmap.width );
h = min( height, glyph->bitmap.rows );
while (h--)
{
for (x = 0; x < w; x++)
{
if ( src[x / 8] & masks[x % 8] )
{
((unsigned int *)dst)[x] = ~0u;
if (fake_bold && x + 1 < width) ((unsigned int *)dst)[x + 1] = ~0u;
}
}
src += glyph->bitmap.pitch;
dst += pitch;
}
break;
case FT_GLYPH_FORMAT_OUTLINE:
{
INT src_pitch, src_width, src_height, x_shift, y_shift;
INT sub_stride, hmul, vmul;
const INT *sub_order;
const INT rgb_order[3] = { 0, 1, 2 };
const INT bgr_order[3] = { 2, 1, 0 };
FT_Render_Mode render_mode =
(format == WINE_GGO_HRGB_BITMAP ||
format == WINE_GGO_HBGR_BITMAP) ? FT_RENDER_MODE_LCD : FT_RENDER_MODE_LCD_V;
if (!width || !height) /* empty glyph */
{
if (!buf || !buflen) break;
return GDI_ERROR;
}
if ( render_mode == FT_RENDER_MODE_LCD)
{
gm->gmBlackBoxX += 2;
gm->gmptGlyphOrigin.x -= 1;
bbox.xMin -= (1 << 6);
}
else
{
gm->gmBlackBoxY += 2;
gm->gmptGlyphOrigin.y += 1;
bbox.yMax += (1 << 6);
}
width = gm->gmBlackBoxX;
height = gm->gmBlackBoxY;
pitch = width * 4;
needed = pitch * height;
if (!buf || !buflen) return needed;
if (needed > buflen) return GDI_ERROR;
if (needs_transform)
pFT_Outline_Transform( &glyph->outline, &matrices[matrix_vert] );
#ifdef FT_LCD_FILTER_H
if (pFT_Library_SetLcdFilter)
pFT_Library_SetLcdFilter( library, FT_LCD_FILTER_DEFAULT );
#endif
pFT_Render_Glyph( glyph, render_mode );
src_pitch = glyph->bitmap.pitch;
src_width = glyph->bitmap.width;
src_height = glyph->bitmap.rows;
src = glyph->bitmap.buffer;
dst = buf;
memset( buf, 0, buflen );
sub_order = (format == WINE_GGO_HRGB_BITMAP ||
format == WINE_GGO_VRGB_BITMAP) ? rgb_order : bgr_order;
sub_stride = render_mode == FT_RENDER_MODE_LCD ? 1 : src_pitch;
hmul = render_mode == FT_RENDER_MODE_LCD ? 3 : 1;
vmul = render_mode == FT_RENDER_MODE_LCD ? 1 : 3;
x_shift = glyph->bitmap_left - (bbox.xMin >> 6);
if ( x_shift < 0 )
{
src += hmul * -x_shift;
src_width -= hmul * -x_shift;
}
else if ( x_shift > 0 )
{
dst += x_shift * sizeof(unsigned int);
width -= x_shift;
}
y_shift = (bbox.yMax >> 6) - glyph->bitmap_top;
if ( y_shift < 0 )
{
src += src_pitch * vmul * -y_shift;
src_height -= vmul * -y_shift;
}
else if ( y_shift > 0 )
{
dst += y_shift * pitch;
height -= y_shift;
}
w = min( width, src_width / hmul );
h = min( height, src_height / vmul );
while (h--)
{
for (x = 0; x < w; x++)
{
((unsigned int *)dst)[x] =
((unsigned int)src[hmul * x + sub_stride * sub_order[0]] << 16) |
((unsigned int)src[hmul * x + sub_stride * sub_order[1]] << 8) |
((unsigned int)src[hmul * x + sub_stride * sub_order[2]]);
}
src += src_pitch * vmul;
dst += pitch;
}
break;
}
default:
FIXME ( "loaded glyph format %x\n", glyph->format );
return GDI_ERROR;
}
return needed;
}
static unsigned int get_native_glyph_outline(FT_Outline *outline, unsigned int buflen, char *buf)
{
TTPOLYGONHEADER *pph;
......@@ -7216,8 +7512,6 @@ static FT_Int get_load_flags( UINT format )
return load_flags;
}
static const BYTE masks[8] = {0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01};
static DWORD get_glyph_outline(GdiFont *incoming_font, UINT glyph, UINT format,
LPGLYPHMETRICS lpgm, ABC *abc, DWORD buflen, LPVOID buf,
const MAT2* lpmat)
......@@ -7227,8 +7521,7 @@ static DWORD get_glyph_outline(GdiFont *incoming_font, UINT glyph, UINT format,
GdiFont *font = incoming_font;
FT_Glyph_Metrics metrics;
FT_UInt glyph_index;
DWORD width, height, pitch, needed = 0;
FT_Bitmap ft_bitmap;
DWORD needed = 0;
FT_Error err;
FT_BBox bbox;
FT_Int load_flags = get_load_flags(format);
......@@ -7331,305 +7624,28 @@ static DWORD get_glyph_outline(GdiFont *incoming_font, UINT glyph, UINT format,
return GDI_ERROR;
}
width = (bbox.xMax - bbox.xMin ) >> 6;
height = (bbox.yMax - bbox.yMin ) >> 6;
switch(format) {
switch (format)
{
case GGO_BITMAP:
pitch = ((width + 31) >> 5) << 2;
needed = pitch * height;
if(!buf || !buflen) break;
if (!needed) return GDI_ERROR; /* empty glyph */
if (needed > buflen)
return GDI_ERROR;
switch(ft_face->glyph->format) {
case ft_glyph_format_bitmap:
{
BYTE *src = ft_face->glyph->bitmap.buffer, *dst = buf;
INT w = min( pitch, (ft_face->glyph->bitmap.width + 7) >> 3 );
INT h = min( height, ft_face->glyph->bitmap.rows );
while(h--) {
if (!font->fake_bold)
memcpy(dst, src, w);
else {
INT x;
dst[0] = 0;
for (x = 0; x < w; x++) {
dst[x ] = (dst[x] & 0x80) | (src[x] >> 1) | src[x];
if (x+1 < pitch)
dst[x+1] = (src[x] & 0x01) << 7;
}
}
src += ft_face->glyph->bitmap.pitch;
dst += pitch;
}
break;
}
case ft_glyph_format_outline:
ft_bitmap.width = width;
ft_bitmap.rows = height;
ft_bitmap.pitch = pitch;
ft_bitmap.pixel_mode = ft_pixel_mode_mono;
ft_bitmap.buffer = buf;
if(needsTransform)
pFT_Outline_Transform( &ft_face->glyph->outline, &matrices[matrix_vert] );
pFT_Outline_Translate(&ft_face->glyph->outline, -bbox.xMin, -bbox.yMin );
/* Note: FreeType will only set 'black' bits for us. */
memset(buf, 0, needed);
pFT_Outline_Get_Bitmap(library, &ft_face->glyph->outline, &ft_bitmap);
break;
default:
FIXME("loaded glyph format %x\n", ft_face->glyph->format);
return GDI_ERROR;
}
break;
needed = get_mono_glyph_bitmap( ft_face->glyph, bbox, font->fake_bold,
needsTransform, matrices, buflen, buf );
break;
case GGO_GRAY2_BITMAP:
case GGO_GRAY4_BITMAP:
case GGO_GRAY8_BITMAP:
case WINE_GGO_GRAY16_BITMAP:
{
unsigned int max_level, row, col;
BYTE *start, *ptr;
pitch = (width + 3) / 4 * 4;
needed = pitch * height;
if(!buf || !buflen) break;
if (!needed) return GDI_ERROR; /* empty glyph */
if (needed > buflen)
return GDI_ERROR;
max_level = get_max_level( format );
switch(ft_face->glyph->format) {
case ft_glyph_format_bitmap:
{
BYTE *src = ft_face->glyph->bitmap.buffer, *dst = buf;
INT h = min( height, ft_face->glyph->bitmap.rows );
INT x;
memset( buf, 0, needed );
while(h--) {
for(x = 0; x < pitch && x < ft_face->glyph->bitmap.width; x++) {
if (src[x / 8] & masks[x % 8]) {
dst[x] = max_level;
if (font->fake_bold && x+1 < pitch) dst[x+1] = max_level;
}
}
src += ft_face->glyph->bitmap.pitch;
dst += pitch;
}
break;
}
case ft_glyph_format_outline:
{
ft_bitmap.width = width;
ft_bitmap.rows = height;
ft_bitmap.pitch = pitch;
ft_bitmap.pixel_mode = ft_pixel_mode_grays;
ft_bitmap.buffer = buf;
if(needsTransform)
pFT_Outline_Transform( &ft_face->glyph->outline, &matrices[matrix_vert] );
pFT_Outline_Translate(&ft_face->glyph->outline, -bbox.xMin, -bbox.yMin );
memset(ft_bitmap.buffer, 0, buflen);
pFT_Outline_Get_Bitmap(library, &ft_face->glyph->outline, &ft_bitmap);
if (max_level != 255)
{
for (row = 0, start = buf; row < height; row++)
{
for (col = 0, ptr = start; col < width; col++, ptr++)
*ptr = (((int)*ptr) * (max_level + 1)) / 256;
start += pitch;
}
}
break;
}
default:
FIXME("loaded glyph format %x\n", ft_face->glyph->format);
return GDI_ERROR;
}
needed = get_antialias_glyph_bitmap( ft_face->glyph, bbox, format, font->fake_bold,
needsTransform, matrices, buflen, buf );
break;
}
case WINE_GGO_HRGB_BITMAP:
case WINE_GGO_HBGR_BITMAP:
case WINE_GGO_VRGB_BITMAP:
case WINE_GGO_VBGR_BITMAP:
{
switch (ft_face->glyph->format)
{
case FT_GLYPH_FORMAT_BITMAP:
{
BYTE *src, *dst;
INT src_pitch, x;
pitch = width * 4;
needed = pitch * height;
if (!buf || !buflen) break;
if (!needed) return GDI_ERROR; /* empty glyph */
if (needed > buflen)
return GDI_ERROR;
memset(buf, 0, buflen);
dst = buf;
src = ft_face->glyph->bitmap.buffer;
src_pitch = ft_face->glyph->bitmap.pitch;
height = min( height, ft_face->glyph->bitmap.rows );
while ( height-- )
{
for (x = 0; x < width && x < ft_face->glyph->bitmap.width; x++)
{
if ( src[x / 8] & masks[x % 8] )
{
((unsigned int *)dst)[x] = ~0u;
if (font->fake_bold && x+1 < width) ((unsigned int *)dst)[x+1] = ~0u;
}
}
src += src_pitch;
dst += pitch;
}
break;
}
case FT_GLYPH_FORMAT_OUTLINE:
{
unsigned int *dst;
BYTE *src;
INT x, src_pitch, src_width, src_height, rgb_interval, hmul, vmul;
INT x_shift, y_shift;
const INT *sub_order;
const INT rgb_order[3] = { 0, 1, 2 };
const INT bgr_order[3] = { 2, 1, 0 };
FT_Render_Mode render_mode =
(format == WINE_GGO_HRGB_BITMAP || format == WINE_GGO_HBGR_BITMAP)?
FT_RENDER_MODE_LCD: FT_RENDER_MODE_LCD_V;
if (!width || !height)
{
if (!buf || !buflen) break;
return GDI_ERROR;
}
if ( render_mode == FT_RENDER_MODE_LCD)
{
gm.gmBlackBoxX += 2;
gm.gmptGlyphOrigin.x -= 1;
bbox.xMin -= (1 << 6);
}
else
{
gm.gmBlackBoxY += 2;
gm.gmptGlyphOrigin.y += 1;
bbox.yMax += (1 << 6);
}
width = gm.gmBlackBoxX;
height = gm.gmBlackBoxY;
pitch = width * 4;
needed = pitch * height;
if (!buf || !buflen) break;
if (needed > buflen)
return GDI_ERROR;
memset(buf, 0, buflen);
dst = buf;
if ( needsTransform )
pFT_Outline_Transform( &ft_face->glyph->outline, &matrices[matrix_vert] );
#ifdef FT_LCD_FILTER_H
if ( pFT_Library_SetLcdFilter )
pFT_Library_SetLcdFilter( library, FT_LCD_FILTER_DEFAULT );
#endif
pFT_Render_Glyph (ft_face->glyph, render_mode);
src = ft_face->glyph->bitmap.buffer;
src_pitch = ft_face->glyph->bitmap.pitch;
src_width = ft_face->glyph->bitmap.width;
src_height = ft_face->glyph->bitmap.rows;
if ( render_mode == FT_RENDER_MODE_LCD)
{
rgb_interval = 1;
hmul = 3;
vmul = 1;
}
else
{
rgb_interval = src_pitch;
hmul = 1;
vmul = 3;
}
x_shift = ft_face->glyph->bitmap_left - (bbox.xMin >> 6);
if ( x_shift < 0 )
{
src += hmul * -x_shift;
src_width -= hmul * -x_shift;
}
else if ( x_shift > 0 )
{
dst += x_shift;
width -= x_shift;
}
y_shift = (bbox.yMax >> 6) - ft_face->glyph->bitmap_top;
if ( y_shift < 0 )
{
src += src_pitch * vmul * -y_shift;
src_height -= vmul * -y_shift;
}
else if ( y_shift > 0 )
{
dst += y_shift * ( pitch / sizeof(*dst) );
height -= y_shift;
}
width = min( width, src_width / hmul );
height = min( height, src_height / vmul );
sub_order = (format == WINE_GGO_HRGB_BITMAP || format == WINE_GGO_VRGB_BITMAP)?
rgb_order : bgr_order;
while ( height-- )
{
for ( x = 0; x < width; x++ )
{
dst[x] = ((unsigned int)src[hmul * x + rgb_interval * sub_order[0]] << 16) |
((unsigned int)src[hmul * x + rgb_interval * sub_order[1]] << 8) |
((unsigned int)src[hmul * x + rgb_interval * sub_order[2]]);
}
src += src_pitch * vmul;
dst += pitch / sizeof(*dst);
}
break;
}
default:
FIXME ("loaded glyph format %x\n", ft_face->glyph->format);
return GDI_ERROR;
}
needed = get_subpixel_glyph_bitmap( ft_face->glyph, bbox, format, font->fake_bold,
needsTransform, matrices, &gm, buflen, buf );
break;
}
case GGO_NATIVE:
{
......@@ -7673,7 +7689,9 @@ static DWORD get_glyph_outline(GdiFont *incoming_font, UINT glyph, UINT format,
FIXME("Unsupported format %d\n", format);
return GDI_ERROR;
}
*lpgm = gm;
if (needed != GDI_ERROR)
*lpgm = gm;
return needed;
}
......
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