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dwrite: Add support for PFM files in Analyze(). 

Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Nikolay Sivov 2016-02-11 04:50:07 +03:00 committed by Alexandre Julliard
parent b9e58dd7cc
commit 38a99b2f25
1 changed files with 48 additions and 0 deletions
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48
dlls/dwrite/opentype.c
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@ -811,6 +811,16 @@ static HRESULT opentype_otf_analyzer(IDWriteFontFileStream *stream, UINT32 *font
static HRESULT opentype_type1_analyzer(IDWriteFontFileStream *stream, UINT32 *font_count, DWRITE_FONT_FILE_TYPE *file_type,
DWRITE_FONT_FACE_TYPE *face_type)
{
#include "pshpack1.h"
/* Specified in Adobe TechNote #5178 */
struct pfm_header {
WORD dfVersion;
DWORD dfSize;
char data0[95];
DWORD dfDevice;
char data1[12];
};
#include "poppack.h"
struct type1_header {
WORD tag;
char data[14];
@ -834,6 +844,44 @@ static HRESULT opentype_type1_analyzer(IDWriteFontFileStream *stream, UINT32 *fo
IDWriteFontFileStream_ReleaseFileFragment(stream, context);
/* let's see if it's a .pfm metrics file */
if (*file_type == DWRITE_FONT_FILE_TYPE_UNKNOWN) {
const struct pfm_header *pfm_header;
UINT64 filesize;
DWORD offset;
BOOL header_checked;
hr = IDWriteFontFileStream_GetFileSize(stream, &filesize);
if (FAILED(hr))
return hr;
hr = IDWriteFontFileStream_ReadFileFragment(stream, (const void**)&pfm_header, 0, sizeof(*pfm_header), &context);
if (FAILED(hr))
return hr;
offset = pfm_header->dfDevice;
header_checked = pfm_header->dfVersion == 0x100 && pfm_header->dfSize == filesize;
IDWriteFontFileStream_ReleaseFileFragment(stream, context);
/* as a last test check static string in PostScript information section */
if (header_checked) {
static const char postscript[] = "PostScript";
char *devtype_name;
hr = IDWriteFontFileStream_ReadFileFragment(stream, (const void**)&devtype_name, offset, sizeof(postscript), &context);
if (FAILED(hr))
return hr;
if (!memcmp(devtype_name, postscript, sizeof(postscript))) {
*font_count = 1;
*file_type = DWRITE_FONT_FILE_TYPE_TYPE1_PFM;
*face_type = DWRITE_FONT_FACE_TYPE_TYPE1;
}
IDWriteFontFileStream_ReleaseFileFragment(stream, context);
}
}
return *file_type != DWRITE_FONT_FILE_TYPE_UNKNOWN ? S_OK : S_FALSE;
}