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gdi32: Add a helper function to get the transform matrices. 

Signed-off-by: Byeongsik Jeon <bsjeon@hanmail.net>
Signed-off-by: Huw Davies <huw@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Byeongsik Jeon 2019-02-07 14:43:38 +00:00 committed by Alexandre Julliard
parent 40a7c5a8a8
commit fcfbb00cb1
1 changed files with 126 additions and 124 deletions
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250
dlls/gdi32/freetype.c
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@ -6588,6 +6588,119 @@ static inline FT_Vector normalize_vector(FT_Vector *vec)
return out;
}
/* get_glyph_outline() glyph transform matrices index */
enum matrices_index
{
matrix_hori,
matrix_vert,
matrix_unrotated
};
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;
@ -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;
@ -6946,12 +7058,8 @@ 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;
FT_Matrix matrices[3];
BOOL needsTransform = FALSE;
BOOL tategaki = (font->name[0] == '@');
BOOL vertical_metrics;
@ -7008,113 +7116,7 @@ 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;
}
needsTransform = get_transform_matrices( font, tategaki, lpmat, matrices );
vertical_metrics = (tategaki && FT_HAS_VERTICAL(ft_face));
/* there is a freetype bug where vertical metrics are only
@ -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;
@ -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 +7218,24 @@ 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.y = 0;
pFT_Vector_Transform(&vec, &transMatUnrotated);
pFT_Vector_Transform( &vec, &matrices[matrix_unrotated] );
abc->abcB = ((pFT_Vector_Length(&vec) + 63) >> 6) - abc->abcA;
}
@ -7313,7 +7315,7 @@ static DWORD get_glyph_outline(GdiFont *incoming_font, UINT glyph, UINT format,
ft_bitmap.buffer = buf;
if(needsTransform)
pFT_Outline_Transform(&ft_face->glyph->outline, &transMatTategaki);
pFT_Outline_Transform( &ft_face->glyph->outline, &matrices[matrix_vert] );
pFT_Outline_Translate(&ft_face->glyph->outline, -left, -bottom );
@ -7374,7 +7376,7 @@ static DWORD get_glyph_outline(GdiFont *incoming_font, UINT glyph, UINT format,
ft_bitmap.buffer = buf;
if(needsTransform)
pFT_Outline_Transform(&ft_face->glyph->outline, &transMatTategaki);
pFT_Outline_Transform( &ft_face->glyph->outline, &matrices[matrix_vert] );
pFT_Outline_Translate(&ft_face->glyph->outline, -left, -bottom );
@ -7489,7 +7491,7 @@ static DWORD get_glyph_outline(GdiFont *incoming_font, UINT glyph, UINT format,
dst = buf;
if ( needsTransform )
pFT_Outline_Transform (&ft_face->glyph->outline, &transMatTategaki);
pFT_Outline_Transform( &ft_face->glyph->outline, &matrices[matrix_vert] );
#ifdef FT_LCD_FILTER_H
if ( pFT_Library_SetLcdFilter )
@ -7575,7 +7577,7 @@ 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);
pFT_Outline_Transform( outline, &matrices[matrix_vert] );
needed = get_native_glyph_outline(outline, buflen, NULL);
@ -7593,7 +7595,7 @@ 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);
pFT_Outline_Transform( outline, &matrices[matrix_vert] );
needed = get_bezier_glyph_outline(outline, buflen, NULL);