[PATCH v3 1/5] gdi32: Add a helper function to get the transform matrices.
Byeongsik Jeon
bsjeon at hanmail.net
Thu Feb 7 06:41:32 CST 2019
Signed-off-by: Byeongsik Jeon <bsjeon at hanmail.net>
---
v3: Huw's comments are applied.
Thank you.
'Vertical' transform position issue:
Vertical transform must be separated from the rotation transform and
applied before the scale transform. This is an issue at lfWidth != 0.
I'll post related patch later.
[v2 PATCH 4/7] is included in this patch.
[v2 PATCH 7/7] has been cancelled. It's not an improvement.
dlls/gdi32/freetype.c | 284 +++++++++++++++++++++---------------------
1 file changed, 144 insertions(+), 140 deletions(-)
diff --git a/dlls/gdi32/freetype.c b/dlls/gdi32/freetype.c
index de62425173..c1a3a548eb 100644
--- a/dlls/gdi32/freetype.c
+++ b/dlls/gdi32/freetype.c
@@ -241,6 +241,14 @@ MAKE_FUNCPTR(FcPatternGetString);
#define WINE_FONT_DIR "fonts"
#endif
+/* get_glyph_outline() glyph transform matrices index */
+enum
+{
+ matrix_hori,
+ matrix_vert,
+ matrix_unrotated
+};
+
/* This is basically a copy of FT_Bitmap_Size with an extra element added */
typedef struct {
FT_Short height;
@@ -6588,6 +6596,111 @@ static inline FT_Vector normalize_vector(FT_Vector *vec)
return out;
}
+static BOOL get_transform_matrices( GdiFont *font, BOOL vertical, const MAT2 *user_transform,
+ FT_Matrix matrices[3] )
+{
+ static const FT_Matrix identity_mat = { (1 << 16), 0, 0, (1 << 16) };
+ BOOL needs_transform = FALSE;
+ double width_ratio;
+ int i;
+
+ matrices[matrix_unrotated] = identity_mat;
+
+ /* Scaling factor */
+ if (font->aveWidth)
+ {
+ TEXTMETRICW tm;
+ get_text_metrics( font, &tm );
+
+ width_ratio = (double)font->aveWidth;
+ width_ratio /= (double)font->potm->otmTextMetrics.tmAveCharWidth;
+ }
+ else
+ width_ratio = font->scale_y;
+
+ /* Scaling transform */
+ if (width_ratio != 1.0 || font->scale_y != 1.0)
+ {
+ FT_Matrix scale_mat;
+ scale_mat.xx = FT_FixedFromFloat( width_ratio );
+ scale_mat.xy = 0;
+ scale_mat.yx = 0;
+ scale_mat.yy = FT_FixedFromFloat( font->scale_y );
+
+ pFT_Matrix_Multiply( &scale_mat, &matrices[matrix_unrotated] );
+ needs_transform = TRUE;
+ }
+
+ /* Slant transform */
+ if (font->fake_italic)
+ {
+ FT_Matrix slant_mat;
+ slant_mat.xx = (1 << 16);
+ slant_mat.xy = (1 << 16) >> 2;
+ slant_mat.yx = 0;
+ slant_mat.yy = (1 << 16);
+
+ pFT_Matrix_Multiply( &slant_mat, &matrices[matrix_unrotated] );
+ needs_transform = TRUE;
+ }
+
+ /* Rotation transform */
+ matrices[matrix_hori] = matrices[matrix_unrotated];
+ if (font->orientation % 3600)
+ {
+ FT_Matrix rotation_mat;
+ FT_Vector angle;
+
+ pFT_Vector_Unit( &angle, MulDiv( 1 << 16, font->orientation, 10 ) );
+ rotation_mat.xx = angle.x;
+ rotation_mat.xy = -angle.y;
+ rotation_mat.yx = angle.y;
+ rotation_mat.yy = angle.x;
+ pFT_Matrix_Multiply( &rotation_mat, &matrices[matrix_hori] );
+ needs_transform = TRUE;
+ }
+
+ /* Vertical transform */
+ matrices[matrix_vert] = matrices[matrix_hori];
+ if (vertical)
+ {
+ FT_Matrix vertical_mat = { 0, -(1 << 16), 1 << 16, 0 }; /* 90 degrees rotation */
+
+ pFT_Matrix_Multiply( &vertical_mat, &matrices[matrix_vert] );
+ needs_transform = TRUE;
+ }
+
+ /* World transform */
+ if (!is_identity_FMAT2( &font->font_desc.matrix ))
+ {
+ FT_Matrix world_mat;
+ world_mat.xx = FT_FixedFromFloat( font->font_desc.matrix.eM11 );
+ world_mat.xy = -FT_FixedFromFloat( font->font_desc.matrix.eM21 );
+ world_mat.yx = -FT_FixedFromFloat( font->font_desc.matrix.eM12 );
+ world_mat.yy = FT_FixedFromFloat( font->font_desc.matrix.eM22 );
+
+ for (i = 0; i < 3; i++)
+ pFT_Matrix_Multiply( &world_mat, &matrices[i] );
+ needs_transform = TRUE;
+ }
+
+ /* Extra transformation specified by caller */
+ if (!is_identity_MAT2( user_transform ))
+ {
+ FT_Matrix user_mat;
+ user_mat.xx = FT_FixedFromFIXED( user_transform->eM11 );
+ user_mat.xy = FT_FixedFromFIXED( user_transform->eM21 );
+ user_mat.yx = FT_FixedFromFIXED( user_transform->eM12 );
+ user_mat.yy = FT_FixedFromFIXED( user_transform->eM22 );
+
+ for (i = 0; i < 3; i++)
+ pFT_Matrix_Multiply( &user_mat, &matrices[i] );
+ needs_transform = TRUE;
+ }
+
+ return needs_transform;
+}
+
static BOOL get_bold_glyph_outline(FT_GlyphSlot glyph, LONG ppem, FT_Glyph_Metrics *metrics)
{
FT_Error err;
@@ -6629,7 +6742,7 @@ static inline BYTE get_max_level( UINT format )
extern const unsigned short vertical_orientation_table[] DECLSPEC_HIDDEN;
-static BOOL check_unicode_tategaki(WCHAR uchar)
+static BOOL check_unicode_vertical_orientation( WCHAR uchar )
{
unsigned short orientation = vertical_orientation_table[vertical_orientation_table[vertical_orientation_table[uchar >> 8]+((uchar >> 4) & 0x0f)]+ (uchar & 0xf)];
@@ -6934,7 +7047,6 @@ static DWORD get_glyph_outline(GdiFont *incoming_font, UINT glyph, UINT format,
LPGLYPHMETRICS lpgm, ABC *abc, DWORD buflen, LPVOID buf,
const MAT2* lpmat)
{
- static const FT_Matrix identityMat = {(1 << 16), 0, 0, (1 << 16)};
GLYPHMETRICS gm;
FT_Face ft_face = incoming_font->ft_face;
GdiFont *font = incoming_font;
@@ -6946,14 +7058,10 @@ static DWORD get_glyph_outline(GdiFont *incoming_font, UINT glyph, UINT format,
INT left, right, top = 0, bottom = 0;
FT_Vector adv;
INT origin_x = 0, origin_y = 0;
- FT_Angle angle = 0;
FT_Int load_flags = get_load_flags(format);
- double widthRatio = 1.0;
- FT_Matrix transMat = identityMat;
- FT_Matrix transMatUnrotated;
- FT_Matrix transMatTategaki;
- BOOL needsTransform = FALSE;
- BOOL tategaki = (font->name[0] == '@');
+ FT_Matrix matrices[3];
+ BOOL needs_transform = FALSE;
+ BOOL vertical = (font->name[0] == '@');
BOOL vertical_metrics;
UINT original_index;
@@ -6974,7 +7082,7 @@ static DWORD get_glyph_outline(GdiFont *incoming_font, UINT glyph, UINT format,
glyph_index = glyph;
original_index = glyph_index;
format &= ~GGO_GLYPH_INDEX;
- /* TODO: Window also turns off tategaki for glyphs passed in by index
+ /* TODO: Window also turns off vertical for glyphs passed in by index
if their unicode code points fall outside of the range that is
rotated. */
} else {
@@ -6982,8 +7090,8 @@ static DWORD get_glyph_outline(GdiFont *incoming_font, UINT glyph, UINT format,
get_glyph_index_linked(incoming_font, glyph, &font, &glyph_index, &vert);
ft_face = font->ft_face;
original_index = glyph_index;
- if (!vert && tategaki)
- tategaki = check_unicode_tategaki(glyph);
+ if (!vert && vertical)
+ vertical = check_unicode_vertical_orientation( glyph );
}
format &= ~GGO_UNHINTED;
@@ -7008,121 +7116,15 @@ static DWORD get_glyph_outline(GdiFont *incoming_font, UINT glyph, UINT format,
if (!font->gm[original_index / GM_BLOCK_SIZE])
font->gm[original_index / GM_BLOCK_SIZE] = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY, sizeof(GM) * GM_BLOCK_SIZE);
- /* Scaling factor */
- if (font->aveWidth)
- {
- TEXTMETRICW tm;
-
- get_text_metrics(font, &tm);
-
- widthRatio = (double)font->aveWidth;
- widthRatio /= (double)font->potm->otmTextMetrics.tmAveCharWidth;
- }
- else
- widthRatio = font->scale_y;
-
- /* Scaling transform */
- if (widthRatio != 1.0 || font->scale_y != 1.0)
- {
- FT_Matrix scaleMat;
- scaleMat.xx = FT_FixedFromFloat(widthRatio);
- scaleMat.xy = 0;
- scaleMat.yx = 0;
- scaleMat.yy = FT_FixedFromFloat(font->scale_y);
-
- pFT_Matrix_Multiply(&scaleMat, &transMat);
- needsTransform = TRUE;
- }
-
- /* Slant transform */
- if (font->fake_italic) {
- FT_Matrix slantMat;
-
- slantMat.xx = (1 << 16);
- slantMat.xy = ((1 << 16) >> 2);
- slantMat.yx = 0;
- slantMat.yy = (1 << 16);
- pFT_Matrix_Multiply(&slantMat, &transMat);
- needsTransform = TRUE;
- }
-
- /* Rotation transform */
- transMatUnrotated = transMat;
- transMatTategaki = transMat;
- if(font->orientation || tategaki) {
- FT_Matrix rotationMat;
- FT_Matrix taterotationMat;
- FT_Vector vecAngle;
-
- double orient = font->orientation / 10.0;
- double tate_orient = 0.f;
-
- if (tategaki)
- tate_orient = ((font->orientation+900)%3600)/10.0;
- else
- tate_orient = font->orientation/10.0;
-
- if (orient)
- {
- angle = FT_FixedFromFloat(orient);
- pFT_Vector_Unit(&vecAngle, angle);
- rotationMat.xx = vecAngle.x;
- rotationMat.xy = -vecAngle.y;
- rotationMat.yx = -rotationMat.xy;
- rotationMat.yy = rotationMat.xx;
-
- pFT_Matrix_Multiply(&rotationMat, &transMat);
- }
-
- if (tate_orient)
- {
- angle = FT_FixedFromFloat(tate_orient);
- pFT_Vector_Unit(&vecAngle, angle);
- taterotationMat.xx = vecAngle.x;
- taterotationMat.xy = -vecAngle.y;
- taterotationMat.yx = -taterotationMat.xy;
- taterotationMat.yy = taterotationMat.xx;
- pFT_Matrix_Multiply(&taterotationMat, &transMatTategaki);
- }
-
- needsTransform = TRUE;
- }
-
- /* World transform */
- if (!is_identity_FMAT2(&font->font_desc.matrix))
- {
- FT_Matrix worldMat;
- worldMat.xx = FT_FixedFromFloat(font->font_desc.matrix.eM11);
- worldMat.xy = -FT_FixedFromFloat(font->font_desc.matrix.eM21);
- worldMat.yx = -FT_FixedFromFloat(font->font_desc.matrix.eM12);
- worldMat.yy = FT_FixedFromFloat(font->font_desc.matrix.eM22);
- pFT_Matrix_Multiply(&worldMat, &transMat);
- pFT_Matrix_Multiply(&worldMat, &transMatUnrotated);
- pFT_Matrix_Multiply(&worldMat, &transMatTategaki);
- needsTransform = TRUE;
- }
-
- /* Extra transformation specified by caller */
- if (!is_identity_MAT2(lpmat))
- {
- FT_Matrix extraMat;
- extraMat.xx = FT_FixedFromFIXED(lpmat->eM11);
- extraMat.xy = FT_FixedFromFIXED(lpmat->eM21);
- extraMat.yx = FT_FixedFromFIXED(lpmat->eM12);
- extraMat.yy = FT_FixedFromFIXED(lpmat->eM22);
- pFT_Matrix_Multiply(&extraMat, &transMat);
- pFT_Matrix_Multiply(&extraMat, &transMatUnrotated);
- pFT_Matrix_Multiply(&extraMat, &transMatTategaki);
- needsTransform = TRUE;
- }
+ needs_transform = get_transform_matrices( font, vertical, lpmat, matrices );
- vertical_metrics = (tategaki && FT_HAS_VERTICAL(ft_face));
+ vertical_metrics = (vertical && FT_HAS_VERTICAL(ft_face));
/* there is a freetype bug where vertical metrics are only
properly scaled and correct in 2.4.0 or greater */
if ((vertical_metrics) && (FT_Version.major < 2 || (FT_Version.major == 2 && FT_Version.minor < 4)))
vertical_metrics = FALSE;
- if (needsTransform || format != GGO_BITMAP) load_flags |= FT_LOAD_NO_BITMAP;
+ if (needs_transform || format != GGO_BITMAP) load_flags |= FT_LOAD_NO_BITMAP;
if (vertical_metrics) load_flags |= FT_LOAD_VERTICAL_LAYOUT;
err = pFT_Load_Glyph(ft_face, glyph_index, load_flags);
@@ -7153,7 +7155,7 @@ static DWORD get_glyph_outline(GdiFont *incoming_font, UINT glyph, UINT format,
/* metrics.width = min( metrics.width, ptm->tmMaxCharWidth << 6 ); */
}
- if(!needsTransform) {
+ if (!needs_transform) {
left = (INT)(metrics.horiBearingX) & -64;
right = (INT)((metrics.horiBearingX + metrics.width) + 63) & -64;
top = (metrics.horiBearingY + 63) & -64;
@@ -7177,7 +7179,7 @@ static DWORD get_glyph_outline(GdiFont *incoming_font, UINT glyph, UINT format,
vec.x = metrics.horiBearingX + xc * metrics.width;
vec.y = metrics.horiBearingY - yc * metrics.height;
TRACE("Vec %ld,%ld\n", vec.x, vec.y);
- pFT_Vector_Transform(&vec, &transMatTategaki);
+ pFT_Vector_Transform( &vec, &matrices[matrix_vert] );
if(xc == 0 && yc == 0) {
left = right = vec.x;
top = bottom = vec.y;
@@ -7194,7 +7196,7 @@ static DWORD get_glyph_outline(GdiFont *incoming_font, UINT glyph, UINT format,
bottom = bottom & -64;
top = (top + 63) & -64;
- if (tategaki && (font->potm || get_outline_text_metrics(font)))
+ if (vertical && (font->potm || get_outline_text_metrics(font)))
{
if (vertical_metrics)
lsb = metrics.horiBearingY + metrics.vertBearingY;
@@ -7203,7 +7205,7 @@ static DWORD get_glyph_outline(GdiFont *incoming_font, UINT glyph, UINT format,
vec.x = lsb;
vec.y = font->potm->otmDescent << 6;
TRACE ("Vec %ld,%ld\n", vec.x>>6, vec.y>>6);
- pFT_Vector_Transform(&vec, &transMat);
+ pFT_Vector_Transform( &vec, &matrices[matrix_hori] );
origin_x = (vec.x + left) & -64;
origin_y = (vec.y + top + 63) & -64;
lsb -= metrics.horiBearingY;
@@ -7216,24 +7218,26 @@ static DWORD get_glyph_outline(GdiFont *incoming_font, UINT glyph, UINT format,
}
TRACE("transformed box: (%d,%d - %d,%d)\n", left, top, right, bottom);
- adv = get_advance_metric(incoming_font, font, &metrics, &transMat, vertical_metrics);
+ adv = get_advance_metric( incoming_font, font, &metrics, &matrices[matrix_hori],
+ vertical_metrics);
gm.gmCellIncX = adv.x >> 6;
gm.gmCellIncY = adv.y >> 6;
- adv = get_advance_metric(incoming_font, font, &metrics, &transMatUnrotated, vertical_metrics);
+ adv = get_advance_metric( incoming_font, font, &metrics, &matrices[matrix_unrotated],
+ vertical_metrics);
adv.x = pFT_Vector_Length(&adv);
adv.y = 0;
vec.x = lsb;
vec.y = 0;
- pFT_Vector_Transform(&vec, &transMatUnrotated);
+ pFT_Vector_Transform( &vec, &matrices[matrix_unrotated] );
if(lsb > 0) abc->abcA = pFT_Vector_Length(&vec) >> 6;
else abc->abcA = -((pFT_Vector_Length(&vec) + 63) >> 6);
/* We use lsb again to avoid rounding errors */
- vec.x = lsb + (tategaki ? metrics.height : metrics.width);
+ vec.x = lsb + (vertical ? metrics.height : metrics.width);
vec.y = 0;
- pFT_Vector_Transform(&vec, &transMatUnrotated);
+ pFT_Vector_Transform( &vec, &matrices[matrix_unrotated] );
abc->abcB = ((pFT_Vector_Length(&vec) + 63) >> 6) - abc->abcA;
}
@@ -7312,8 +7316,8 @@ static DWORD get_glyph_outline(GdiFont *incoming_font, UINT glyph, UINT format,
ft_bitmap.pixel_mode = ft_pixel_mode_mono;
ft_bitmap.buffer = buf;
- if(needsTransform)
- pFT_Outline_Transform(&ft_face->glyph->outline, &transMatTategaki);
+ if (needs_transform)
+ pFT_Outline_Transform( &ft_face->glyph->outline, &matrices[matrix_vert] );
pFT_Outline_Translate(&ft_face->glyph->outline, -left, -bottom );
@@ -7373,8 +7377,8 @@ static DWORD get_glyph_outline(GdiFont *incoming_font, UINT glyph, UINT format,
ft_bitmap.pixel_mode = ft_pixel_mode_grays;
ft_bitmap.buffer = buf;
- if(needsTransform)
- pFT_Outline_Transform(&ft_face->glyph->outline, &transMatTategaki);
+ if (needs_transform)
+ pFT_Outline_Transform( &ft_face->glyph->outline, &matrices[matrix_vert] );
pFT_Outline_Translate(&ft_face->glyph->outline, -left, -bottom );
@@ -7488,8 +7492,8 @@ static DWORD get_glyph_outline(GdiFont *incoming_font, UINT glyph, UINT format,
memset(buf, 0, buflen);
dst = buf;
- if ( needsTransform )
- pFT_Outline_Transform (&ft_face->glyph->outline, &transMatTategaki);
+ if (needs_transform)
+ pFT_Outline_Transform( &ft_face->glyph->outline, &matrices[matrix_vert] );
#ifdef FT_LCD_FILTER_H
if ( pFT_Library_SetLcdFilter )
@@ -7574,8 +7578,8 @@ static DWORD get_glyph_outline(GdiFont *incoming_font, UINT glyph, UINT format,
if(buflen == 0) buf = NULL;
- if (needsTransform && buf)
- pFT_Outline_Transform(outline, &transMatTategaki);
+ if (needs_transform && buf)
+ pFT_Outline_Transform( outline, &matrices[matrix_vert] );
needed = get_native_glyph_outline(outline, buflen, NULL);
@@ -7592,8 +7596,8 @@ static DWORD get_glyph_outline(GdiFont *incoming_font, UINT glyph, UINT format,
FT_Outline *outline = &ft_face->glyph->outline;
if(buflen == 0) buf = NULL;
- if (needsTransform && buf)
- pFT_Outline_Transform(outline, &transMat);
+ if (needs_transform && buf)
+ pFT_Outline_Transform( outline, &matrices[matrix_vert] );
needed = get_bezier_glyph_outline(outline, buflen, NULL);
--
2.20.1
More information about the wine-devel
mailing list