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dwrite: Use cache when font transform matrix contains only translation offsets.

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Word 2016 queries a lot of font glyph bounding boxes and bitmaps with translation matrices. The
result of these queries is not cached because the transform matrix is not the identity matrix.
However, the translation offsets don't affect FreeType font operations at all, which can be
verified in ft_matrix_from_dwrite_matrix() called by get_glyph_transform(). So these results with
translation matrices can be cached as well. With this patch, Word 2016 stuttering is reduced
significantly.
This commit is contained in:
Zhiyi Zhang 2023-03-22 17:14:24 +08:00 committed by Alexandre Julliard
parent e4512287a0
commit f2df5a6c5d
4 changed files with 41 additions and 12 deletions
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19
dlls/dwrite/dwrite_private.h
View file

@ -16,6 +16,9 @@
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#ifndef __WINE_DWRITE_PRIVATE_H
#define __WINE_DWRITE_PRIVATE_H
#include "dwrite_3.h"
#include "d2d1.h"
#include "winternl.h"
@ -27,6 +30,14 @@
#define MS_GSUB_TAG DWRITE_MAKE_OPENTYPE_TAG('G','S','U','B')
#define MS_GPOS_TAG DWRITE_MAKE_OPENTYPE_TAG('G','P','O','S')
typedef struct MATRIX_2X2
{
float m11;
float m12;
float m21;
float m22;
} MATRIX_2X2;
static const DWRITE_MATRIX identity =
{
1.0f, 0.0f,
@ -34,6 +45,12 @@ static const DWRITE_MATRIX identity =
0.0f, 0.0f
};
static const MATRIX_2X2 identity_2x2 =
{
1.0f, 0.0f,
0.0f, 1.0f,
};
static inline LPWSTR heap_strdupnW(const WCHAR *str, UINT32 len)
{
WCHAR *ret = NULL;
@ -820,3 +837,5 @@ struct font_data_context;
extern HMODULE dwrite_module DECLSPEC_HIDDEN;
extern void dwrite_fontface_get_glyph_bbox(IDWriteFontFace *fontface, struct dwrite_glyphbitmap *bitmap) DECLSPEC_HIDDEN;
#endif /* __WINE_DWRITE_PRIVATE_H */

17
dlls/dwrite/font.c
View file

@ -69,6 +69,15 @@ struct cache_entry
unsigned int has_bitmap : 1;
};
/* Ignore dx and dy because FreeType doesn't actually use it */
static inline void matrix_2x2_from_dwrite_matrix(MATRIX_2X2 *m1, const DWRITE_MATRIX *m2)
{
m1->m11 = m2->m11;
m1->m12 = m2->m12;
m1->m21 = m2->m21;
m1->m22 = m2->m22;
}
static void fontface_release_cache_entry(struct cache_entry *entry)
{
free(entry->bitmap);
@ -157,11 +166,11 @@ void dwrite_fontface_get_glyph_bbox(IDWriteFontFace *iface, struct dwrite_glyphb
params.simulations = bitmap->simulations;
params.glyph = bitmap->glyph;
params.emsize = bitmap->emsize;
params.m = bitmap->m ? *bitmap->m : identity;
matrix_2x2_from_dwrite_matrix(&params.m, bitmap->m ? bitmap->m : &identity);
EnterCriticalSection(&fontface->cs);
/* For now bypass cache for transformed cases. */
if (bitmap->m && memcmp(bitmap->m, &identity, sizeof(*bitmap->m)))
if (bitmap->m && memcmp(&params.m, &identity_2x2, sizeof(params.m)))
{
params.bbox = &bitmap->bbox;
UNIX_CALL(get_glyph_bbox, &params);
@ -202,15 +211,15 @@ static HRESULT dwrite_fontface_get_glyph_bitmap(struct dwrite_fontface *fontface
params.glyph = bitmap->glyph;
params.mode = rendering_mode;
params.emsize = bitmap->emsize;
params.m = bitmap->m ? *bitmap->m : identity;
params.bbox = bitmap->bbox;
params.pitch = bitmap->pitch;
params.bitmap = bitmap->buf;
params.is_1bpp = is_1bpp;
matrix_2x2_from_dwrite_matrix(&params.m, bitmap->m ? bitmap->m : &identity);
EnterCriticalSection(&fontface->cs);
/* For now bypass cache for transformed cases. */
if (memcmp(&params.m, &identity, sizeof(params.m)))
if (bitmap->m && memcmp(&params.m, &identity_2x2, sizeof(params.m)))
{
UNIX_CALL(get_glyph_bitmap, &params);
}

12
dlls/dwrite/freetype.c
View file

@ -496,7 +496,7 @@ static NTSTATUS get_glyph_count(void *args)
return STATUS_SUCCESS;
}
static inline void ft_matrix_from_dwrite_matrix(const DWRITE_MATRIX *m, FT_Matrix *ft_matrix)
static inline void ft_matrix_from_matrix_2x2(const MATRIX_2X2 *m, FT_Matrix *ft_matrix)
{
ft_matrix->xx = m->m11 * 0x10000;
ft_matrix->xy = -m->m21 * 0x10000;
@ -504,7 +504,7 @@ static inline void ft_matrix_from_dwrite_matrix(const DWRITE_MATRIX *m, FT_Matri
ft_matrix->yy = m->m22 * 0x10000;
}
static BOOL get_glyph_transform(unsigned int simulations, const DWRITE_MATRIX *m, FT_Matrix *ret)
static BOOL get_glyph_transform(unsigned int simulations, const MATRIX_2X2 *m, FT_Matrix *ret)
{
FT_Matrix ftm;
@ -515,7 +515,7 @@ static BOOL get_glyph_transform(unsigned int simulations, const DWRITE_MATRIX *m
/* Some fonts provide mostly bitmaps and very few outlines, for example for .notdef.
Disable transform if that's the case. */
if (!memcmp(m, &identity, sizeof(*m)) && !simulations)
if (!memcmp(m, &identity_2x2, sizeof(*m)) && !simulations)
return FALSE;
if (simulations & DWRITE_FONT_SIMULATIONS_OBLIQUE)
@ -527,7 +527,7 @@ static BOOL get_glyph_transform(unsigned int simulations, const DWRITE_MATRIX *m
pFT_Matrix_Multiply(&ftm, ret);
}
ft_matrix_from_dwrite_matrix(m, &ftm);
ft_matrix_from_matrix_2x2(m, &ftm);
pFT_Matrix_Multiply(&ftm, ret);
return TRUE;
@ -955,7 +955,7 @@ static NTSTATUS wow64_get_glyph_bbox(void *args)
ULONG simulations;
ULONG glyph;
float emsize;
DWRITE_MATRIX m;
MATRIX_2X2 m;
PTR32 bbox;
} const *params32 = args;
struct get_glyph_bbox_params params =
@ -980,7 +980,7 @@ static NTSTATUS wow64_get_glyph_bitmap(void *args)
ULONG glyph;
ULONG mode;
float emsize;
DWRITE_MATRIX m;
MATRIX_2X2 m;
RECT bbox;
int pitch;
PTR32 bitmap;

5
dlls/dwrite/unixlib.h
View file

@ -20,6 +20,7 @@
#include "windef.h"
#include "winternl.h"
#include "dwrite.h"
#include "dwrite_private.h"
#include "wine/unixlib.h"
struct create_font_object_params
@ -66,7 +67,7 @@ struct get_glyph_bbox_params
unsigned int simulations;
unsigned int glyph;
float emsize;
DWRITE_MATRIX m;
MATRIX_2X2 m;
RECT *bbox;
};
@ -77,7 +78,7 @@ struct get_glyph_bitmap_params
unsigned int glyph;
unsigned int mode;
float emsize;
DWRITE_MATRIX m;
MATRIX_2X2 m;
RECT bbox;
int pitch;
BYTE *bitmap;