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dwrite: Shift get_font_properties to opentype.

This commit is contained in:
Aric Stewart 2014-09-04 17:45:29 -05:00 committed by Alexandre Julliard
parent 652f5d9b87
commit 1d6147ec9a
3 changed files with 162 additions and 145 deletions
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1
dlls/dwrite/dwrite_private.h
View File

@ -101,3 +101,4 @@ extern HRESULT font_create_fontface(IDWriteFactory *iface, DWRITE_FONT_FACE_TYPE
extern HRESULT analyze_opentype_font(const void* font_data, UINT32* font_count, DWRITE_FONT_FILE_TYPE *file_type, DWRITE_FONT_FACE_TYPE *face_type, BOOL *supported) DECLSPEC_HIDDEN;
extern HRESULT find_font_table(IDWriteFontFileStream *stream, UINT32 font_index, UINT32 tag, const void** table_data, void** table_context, UINT32 *table_size, BOOL* found) DECLSPEC_HIDDEN;
extern VOID OpenType_CMAP_GetGlyphIndex(LPVOID data, DWORD utf32c, LPWORD pgi, DWORD flags) DECLSPEC_HIDDEN;
extern VOID get_font_properties(LPCVOID os2, LPCVOID head, LPCVOID post, DWRITE_FONT_METRICS *metrics, DWRITE_FONT_STRETCH *stretch, DWRITE_FONT_WEIGHT *weight, DWRITE_FONT_STYLE *style) DECLSPEC_HIDDEN;

175
dlls/dwrite/font.c
View File

@ -25,98 +25,6 @@
WINE_DEFAULT_DEBUG_CHANNEL(dwrite);
/* PANOSE is 10 bytes in size, need to pack the structure properly */
#include "pshpack2.h"
typedef struct
{
ULONG version;
ULONG revision;
ULONG checksumadj;
ULONG magic;
USHORT flags;
USHORT unitsPerEm;
ULONGLONG created;
ULONGLONG modified;
SHORT xMin;
SHORT yMin;
SHORT xMax;
SHORT yMax;
USHORT macStyle;
USHORT lowestRecPPEM;
SHORT direction_hint;
SHORT index_format;
SHORT glyphdata_format;
} TT_HEAD;
typedef struct
{
ULONG Version;
ULONG italicAngle;
SHORT underlinePosition;
SHORT underlineThickness;
ULONG fixed_pitch;
ULONG minmemType42;
ULONG maxmemType42;
ULONG minmemType1;
ULONG maxmemType1;
} TT_POST;
typedef struct
{
USHORT version;
SHORT xAvgCharWidth;
USHORT usWeightClass;
USHORT usWidthClass;
SHORT fsType;
SHORT ySubscriptXSize;
SHORT ySubscriptYSize;
SHORT ySubscriptXOffset;
SHORT ySubscriptYOffset;
SHORT ySuperscriptXSize;
SHORT ySuperscriptYSize;
SHORT ySuperscriptXOffset;
SHORT ySuperscriptYOffset;
SHORT yStrikeoutSize;
SHORT yStrikeoutPosition;
SHORT sFamilyClass;
PANOSE panose;
ULONG ulUnicodeRange1;
ULONG ulUnicodeRange2;
ULONG ulUnicodeRange3;
ULONG ulUnicodeRange4;
CHAR achVendID[4];
USHORT fsSelection;
USHORT usFirstCharIndex;
USHORT usLastCharIndex;
/* According to the Apple spec, original version didn't have the below fields,
* version numbers were taken from the OpenType spec.
*/
/* version 0 (TrueType 1.5) */
USHORT sTypoAscender;
USHORT sTypoDescender;
USHORT sTypoLineGap;
USHORT usWinAscent;
USHORT usWinDescent;
/* version 1 (TrueType 1.66) */
ULONG ulCodePageRange1;
ULONG ulCodePageRange2;
/* version 2 (OpenType 1.2) */
SHORT sxHeight;
SHORT sCapHeight;
USHORT usDefaultChar;
USHORT usBreakChar;
USHORT usMaxContext;
} TT_OS2_V2;
#include "poppack.h"
#ifdef WORDS_BIGENDIAN
#define GET_BE_WORD(x) (x)
#define GET_BE_DWORD(x) (x)
#else
#define GET_BE_WORD(x) MAKEWORD(HIBYTE(x), LOBYTE(x))
#define GET_BE_DWORD(x) MAKELONG(GET_BE_WORD(HIWORD(x)), GET_BE_WORD(LOWORD(x)));
#endif
#define MS_MAKE_TAG(ch0, ch1, ch2, ch3) \
((DWORD)(BYTE)(ch0) | ((DWORD)(BYTE)(ch1) << 8) | \
((DWORD)(BYTE)(ch2) << 16) | ((DWORD)(BYTE)(ch3) << 24))
@ -1149,57 +1057,6 @@ static HRESULT create_fontfamily(const WCHAR *familyname, IDWriteFontFamily **fa
return S_OK;
}
static void get_font_properties(struct dwrite_font *font, HDC hdc)
{
TT_OS2_V2 tt_os2;
TT_HEAD tt_head;
TT_POST tt_post;
LONG size;
/* default stretch and weight to normal */
font->data->stretch = DWRITE_FONT_STRETCH_NORMAL;
font->data->weight = DWRITE_FONT_WEIGHT_NORMAL;
memset(&font->data->metrics, 0, sizeof(font->data->metrics));
size = GetFontData(hdc, MS_OS2_TAG, 0, NULL, 0);
if (size != GDI_ERROR)
{
if (size > sizeof(tt_os2)) size = sizeof(tt_os2);
memset(&tt_os2, 0, sizeof(tt_os2));
if (GetFontData(hdc, MS_OS2_TAG, 0, &tt_os2, size) != size) return;
/* DWRITE_FONT_STRETCH enumeration values directly match font data values */
if (GET_BE_WORD(tt_os2.usWidthClass) <= DWRITE_FONT_STRETCH_ULTRA_EXPANDED)
font->data->stretch = GET_BE_WORD(tt_os2.usWidthClass);
font->data->weight = GET_BE_WORD(tt_os2.usWeightClass);
TRACE("stretch=%d, weight=%d\n", font->data->stretch, font->data->weight);
font->data->metrics.ascent = GET_BE_WORD(tt_os2.sTypoAscender);
font->data->metrics.descent = GET_BE_WORD(tt_os2.sTypoDescender);
font->data->metrics.lineGap = GET_BE_WORD(tt_os2.sTypoLineGap);
font->data->metrics.capHeight = GET_BE_WORD(tt_os2.sCapHeight);
font->data->metrics.xHeight = GET_BE_WORD(tt_os2.sxHeight);
font->data->metrics.strikethroughPosition = GET_BE_WORD(tt_os2.yStrikeoutPosition);
font->data->metrics.strikethroughThickness = GET_BE_WORD(tt_os2.yStrikeoutSize);
}
memset(&tt_head, 0, sizeof(tt_head));
if (GetFontData(hdc, MS_HEAD_TAG, 0, &tt_head, sizeof(tt_head)) != GDI_ERROR)
{
font->data->metrics.designUnitsPerEm = GET_BE_WORD(tt_head.unitsPerEm);
}
memset(&tt_post, 0, sizeof(tt_post));
if (GetFontData(hdc, MS_POST_TAG, 0, &tt_post, sizeof(tt_post)) != GDI_ERROR)
{
font->data->metrics.underlinePosition = GET_BE_WORD(tt_post.underlinePosition);
font->data->metrics.underlineThickness = GET_BE_WORD(tt_post.underlineThickness);
}
}
static HRESULT create_font_from_data(struct dwrite_font_data *data, IDWriteFont **font)
{
struct dwrite_font *This;
@ -1248,6 +1105,10 @@ HRESULT create_font_from_logfont(const LOGFONTW *logfont, IDWriteFont **font)
HFONT hfont;
HDC hdc;
int ret;
LPVOID tt_os2 = NULL;
LPVOID tt_head = NULL;
LPVOID tt_post = NULL;
LONG size;
hr = create_font_base(font);
if (FAILED(hr))
@ -1279,7 +1140,32 @@ HRESULT create_font_from_logfont(const LOGFONTW *logfont, IDWriteFont **font)
otm->otmSize = ret;
ret = GetOutlineTextMetricsW(hdc, otm->otmSize, otm);
get_font_properties(This, hdc);
size = GetFontData(hdc, MS_OS2_TAG, 0, NULL, 0);
if (size != GDI_ERROR)
{
tt_os2 = heap_alloc(size);
GetFontData(hdc, MS_OS2_TAG, 0, tt_os2, size);
}
size = GetFontData(hdc, MS_HEAD_TAG, 0, NULL, 0);
if (size != GDI_ERROR)
{
tt_head = heap_alloc(size);
GetFontData(hdc, MS_HEAD_TAG, 0, tt_head, size);
}
size = GetFontData(hdc, MS_POST_TAG, 0, NULL, 0);
if (size != GDI_ERROR)
{
tt_post = heap_alloc(size);
GetFontData(hdc, MS_POST_TAG, 0, tt_post, size);
}
get_font_properties(tt_os2, tt_head, tt_post, &This->data->metrics, &This->data->stretch, &This->data->weight, &This->data->style);
heap_free(tt_os2);
heap_free(tt_head);
heap_free(tt_post);
if (logfont->lfItalic)
This->data->style = DWRITE_FONT_STYLE_ITALIC;
DeleteDC(hdc);
DeleteObject(hfont);
@ -1300,7 +1186,6 @@ HRESULT create_font_from_logfont(const LOGFONTW *logfont, IDWriteFont **font)
This->is_system = TRUE;
This->family = family;
This->data->simulations = DWRITE_FONT_SIMULATIONS_NONE;
This->data->style = logfont->lfItalic ? DWRITE_FONT_STYLE_ITALIC : DWRITE_FONT_STYLE_NORMAL;
This->data->facename = heap_strdupW(logfont->lfFaceName);
return S_OK;

131
dlls/dwrite/opentype.c
View File

@ -100,6 +100,90 @@ typedef struct {
WORD endCode[1];
} CMAP_SegmentMapping_0;
/* PANOSE is 10 bytes in size, need to pack the structure properly */
#include "pshpack2.h"
typedef struct
{
ULONG version;
ULONG revision;
ULONG checksumadj;
ULONG magic;
USHORT flags;
USHORT unitsPerEm;
ULONGLONG created;
ULONGLONG modified;
SHORT xMin;
SHORT yMin;
SHORT xMax;
SHORT yMax;
USHORT macStyle;
USHORT lowestRecPPEM;
SHORT direction_hint;
SHORT index_format;
SHORT glyphdata_format;
} TT_HEAD;
typedef struct
{
ULONG Version;
ULONG italicAngle;
SHORT underlinePosition;
SHORT underlineThickness;
ULONG fixed_pitch;
ULONG minmemType42;
ULONG maxmemType42;
ULONG minmemType1;
ULONG maxmemType1;
} TT_POST;
typedef struct
{
USHORT version;
SHORT xAvgCharWidth;
USHORT usWeightClass;
USHORT usWidthClass;
SHORT fsType;
SHORT ySubscriptXSize;
SHORT ySubscriptYSize;
SHORT ySubscriptXOffset;
SHORT ySubscriptYOffset;
SHORT ySuperscriptXSize;
SHORT ySuperscriptYSize;
SHORT ySuperscriptXOffset;
SHORT ySuperscriptYOffset;
SHORT yStrikeoutSize;
SHORT yStrikeoutPosition;
SHORT sFamilyClass;
PANOSE panose;
ULONG ulUnicodeRange1;
ULONG ulUnicodeRange2;
ULONG ulUnicodeRange3;
ULONG ulUnicodeRange4;
CHAR achVendID[4];
USHORT fsSelection;
USHORT usFirstCharIndex;
USHORT usLastCharIndex;
/* According to the Apple spec, original version didn't have the below fields,
* version numbers were taken from the OpenType spec.
*/
/* version 0 (TrueType 1.5) */
USHORT sTypoAscender;
USHORT sTypoDescender;
USHORT sTypoLineGap;
USHORT usWinAscent;
USHORT usWinDescent;
/* version 1 (TrueType 1.66) */
ULONG ulCodePageRange1;
ULONG ulCodePageRange2;
/* version 2 (OpenType 1.2) */
SHORT sxHeight;
SHORT sCapHeight;
USHORT usDefaultChar;
USHORT usBreakChar;
USHORT usMaxContext;
} TT_OS2_V2;
#include "poppack.h"
HRESULT analyze_opentype_font(const void* font_data, UINT32* font_count, DWRITE_FONT_FILE_TYPE *file_type, DWRITE_FONT_FACE_TYPE *face_type, BOOL *supported)
{
/* TODO: Do font validation */
@ -314,3 +398,50 @@ VOID OpenType_CMAP_GetGlyphIndex(LPVOID data, DWORD utf32c, LPWORD pgi, DWORD fl
}
}
}
VOID get_font_properties(LPCVOID os2, LPCVOID head, LPCVOID post, DWRITE_FONT_METRICS *metrics, DWRITE_FONT_STRETCH *stretch, DWRITE_FONT_WEIGHT *weight, DWRITE_FONT_STYLE *style)
{
TT_OS2_V2 *tt_os2 = (TT_OS2_V2*)os2;
TT_HEAD *tt_head = (TT_HEAD*)head;
TT_POST *tt_post = (TT_POST*)post;
/* default stretch, weight and style to normal */
*stretch = DWRITE_FONT_STRETCH_NORMAL;
*weight = DWRITE_FONT_WEIGHT_NORMAL;
*style = DWRITE_FONT_STYLE_NORMAL;
memset(metrics, 0, sizeof(*metrics));
/* DWRITE_FONT_STRETCH enumeration values directly match font data values */
if (tt_os2)
{
if (GET_BE_WORD(tt_os2->usWidthClass) <= DWRITE_FONT_STRETCH_ULTRA_EXPANDED)
*stretch = GET_BE_WORD(tt_os2->usWidthClass);
*weight = GET_BE_WORD(tt_os2->usWeightClass);
TRACE("stretch=%d, weight=%d\n", *stretch, *weight);
metrics->ascent = GET_BE_WORD(tt_os2->sTypoAscender);
metrics->descent = GET_BE_WORD(tt_os2->sTypoDescender);
metrics->lineGap = GET_BE_WORD(tt_os2->sTypoLineGap);
metrics->capHeight = GET_BE_WORD(tt_os2->sCapHeight);
metrics->xHeight = GET_BE_WORD(tt_os2->sxHeight);
metrics->strikethroughPosition = GET_BE_WORD(tt_os2->yStrikeoutPosition);
metrics->strikethroughThickness = GET_BE_WORD(tt_os2->yStrikeoutSize);
}
if (tt_head)
{
USHORT macStyle = GET_BE_WORD(tt_head->macStyle);
metrics->designUnitsPerEm = GET_BE_WORD(tt_head->unitsPerEm);
if (macStyle & 0x0002)
*style = DWRITE_FONT_STYLE_ITALIC;
}
if (tt_post)
{
metrics->underlinePosition = GET_BE_WORD(tt_post->underlinePosition);
metrics->underlineThickness = GET_BE_WORD(tt_post->underlineThickness);
}
}