diff options
Diffstat (limited to 'src/3rdparty/harfbuzz-ng/src/OT/glyf/VarCompositeGlyph.hh')
| -rw-r--r-- | src/3rdparty/harfbuzz-ng/src/OT/glyf/VarCompositeGlyph.hh | 272 |
1 files changed, 160 insertions, 112 deletions
diff --git a/src/3rdparty/harfbuzz-ng/src/OT/glyf/VarCompositeGlyph.hh b/src/3rdparty/harfbuzz-ng/src/OT/glyf/VarCompositeGlyph.hh index 0f4c71c83d..50cbece3ca 100644 --- a/src/3rdparty/harfbuzz-ng/src/OT/glyf/VarCompositeGlyph.hh +++ b/src/3rdparty/harfbuzz-ng/src/OT/glyf/VarCompositeGlyph.hh @@ -27,32 +27,30 @@ struct VarCompositeGlyphRecord HAVE_SKEW_Y = 0x0200, HAVE_TCENTER_X = 0x0400, HAVE_TCENTER_Y = 0x0800, - GID_IS_24 = 0x1000, + GID_IS_24BIT = 0x1000, AXES_HAVE_VARIATION = 0x2000, + RESET_UNSPECIFIED_AXES = 0x4000, }; public: unsigned int get_size () const { + unsigned fl = flags; unsigned int size = min_size; - unsigned axis_width = (flags & AXIS_INDICES_ARE_SHORT) ? 4 : 3; + unsigned axis_width = (fl & AXIS_INDICES_ARE_SHORT) ? 4 : 3; size += numAxes * axis_width; - // gid - size += 2; - if (flags & GID_IS_24) size += 1; + if (fl & GID_IS_24BIT) size += 1; - if (flags & HAVE_TRANSLATE_X) size += 2; - if (flags & HAVE_TRANSLATE_Y) size += 2; - if (flags & HAVE_ROTATION) size += 2; - if (flags & HAVE_SCALE_X) size += 2; - if (flags & HAVE_SCALE_Y) size += 2; - if (flags & HAVE_SKEW_X) size += 2; - if (flags & HAVE_SKEW_Y) size += 2; - if (flags & HAVE_TCENTER_X) size += 2; - if (flags & HAVE_TCENTER_Y) size += 2; + // 2 bytes each for the following flags + fl = fl & (HAVE_TRANSLATE_X | HAVE_TRANSLATE_Y | + HAVE_ROTATION | + HAVE_SCALE_X | HAVE_SCALE_Y | + HAVE_SKEW_X | HAVE_SKEW_Y | + HAVE_TCENTER_X | HAVE_TCENTER_Y); + size += hb_popcount (fl) * 2; return size; } @@ -60,13 +58,22 @@ struct VarCompositeGlyphRecord bool has_more () const { return true; } bool is_use_my_metrics () const { return flags & USE_MY_METRICS; } + bool is_reset_unspecified_axes () const { return flags & RESET_UNSPECIFIED_AXES; } hb_codepoint_t get_gid () const { - if (flags & GID_IS_24) - return StructAfter<const HBGlyphID24> (numAxes); + if (flags & GID_IS_24BIT) + return * (const HBGlyphID24 *) &pad; else - return StructAfter<const HBGlyphID16> (numAxes); + return * (const HBGlyphID16 *) &pad; + } + + void set_gid (hb_codepoint_t gid) + { + if (flags & GID_IS_24BIT) + * (HBGlyphID24 *) &pad = gid; + else + * (HBGlyphID16 *) &pad = gid; } unsigned get_numAxes () const @@ -76,26 +83,44 @@ struct VarCompositeGlyphRecord unsigned get_num_points () const { + unsigned fl = flags; unsigned num = 0; - if (flags & AXES_HAVE_VARIATION) num += numAxes; - if (flags & (HAVE_TRANSLATE_X | HAVE_TRANSLATE_Y)) num++; - if (flags & HAVE_ROTATION) num++; - if (flags & (HAVE_SCALE_X | HAVE_SCALE_Y)) num++; - if (flags & (HAVE_SKEW_X | HAVE_SKEW_Y)) num++; - if (flags & (HAVE_TCENTER_X | HAVE_TCENTER_Y)) num++; + if (fl & AXES_HAVE_VARIATION) num += numAxes; + + /* Hopefully faster code, relying on the value of the flags. */ + fl = (((fl & (HAVE_TRANSLATE_Y | HAVE_SCALE_Y | HAVE_SKEW_Y | HAVE_TCENTER_Y)) >> 1) | fl) & + (HAVE_TRANSLATE_X | HAVE_ROTATION | HAVE_SCALE_X | HAVE_SKEW_X | HAVE_TCENTER_X); + num += hb_popcount (fl); + return num; + + /* Slower but more readable code. */ + if (fl & (HAVE_TRANSLATE_X | HAVE_TRANSLATE_Y)) num++; + if (fl & HAVE_ROTATION) num++; + if (fl & (HAVE_SCALE_X | HAVE_SCALE_Y)) num++; + if (fl & (HAVE_SKEW_X | HAVE_SKEW_Y)) num++; + if (fl & (HAVE_TCENTER_X | HAVE_TCENTER_Y)) num++; return num; } - void transform_points (hb_array_t<contour_point_t> record_points, - contour_point_vector_t &points) const + void transform_points (hb_array_t<const contour_point_t> record_points, + hb_array_t<contour_point_t> points) const { float matrix[4]; contour_point_t trans; - get_transformation_from_points (record_points, matrix, trans); + get_transformation_from_points (record_points.arrayZ, matrix, trans); + + auto arrayZ = points.arrayZ; + unsigned count = points.length; - points.transform (matrix); - points.translate (trans); + if (matrix[0] != 1.f || matrix[1] != 0.f || + matrix[2] != 0.f || matrix[3] != 1.f) + for (unsigned i = 0; i < count; i++) + arrayZ[i].transform (matrix); + + if (trans.x != 0.f || trans.y != 0.f) + for (unsigned i = 0; i < count; i++) + arrayZ[i].translate (trans); } static inline void transform (float (&matrix)[4], contour_point_t &trans, @@ -126,26 +151,41 @@ struct VarCompositeGlyphRecord static void translate (float (&matrix)[4], contour_point_t &trans, float translateX, float translateY) { - // https://github.com/fonttools/fonttools/blob/f66ee05f71c8b57b5f519ee975e95edcd1466e14/Lib/fontTools/misc/transform.py#L213 - float other[6] = {1.f, 0.f, 0.f, 1.f, translateX, translateY}; - transform (matrix, trans, other); + if (!translateX && !translateY) + return; + + trans.x += matrix[0] * translateX + matrix[2] * translateY; + trans.y += matrix[1] * translateX + matrix[3] * translateY; } static void scale (float (&matrix)[4], contour_point_t &trans, float scaleX, float scaleY) { - // https://github.com/fonttools/fonttools/blob/f66ee05f71c8b57b5f519ee975e95edcd1466e14/Lib/fontTools/misc/transform.py#L224 - float other[6] = {scaleX, 0.f, 0.f, scaleY, 0.f, 0.f}; - transform (matrix, trans, other); + if (scaleX == 1.f && scaleY == 1.f) + return; + + matrix[0] *= scaleX; + matrix[1] *= scaleX; + matrix[2] *= scaleY; + matrix[3] *= scaleY; } static void rotate (float (&matrix)[4], contour_point_t &trans, float rotation) { + if (!rotation) + return; + // https://github.com/fonttools/fonttools/blob/f66ee05f71c8b57b5f519ee975e95edcd1466e14/Lib/fontTools/misc/transform.py#L240 - rotation = rotation * float (M_PI); - float c = cosf (rotation); - float s = sinf (rotation); + rotation = rotation * HB_PI; + float c; + float s; +#ifdef HAVE_SINCOSF + sincosf (rotation, &s, &c); +#else + c = cosf (rotation); + s = sinf (rotation); +#endif float other[6] = {c, s, -s, c, 0.f, 0.f}; transform (matrix, trans, other); } @@ -153,99 +193,100 @@ struct VarCompositeGlyphRecord static void skew (float (&matrix)[4], contour_point_t &trans, float skewX, float skewY) { + if (!skewX && !skewY) + return; + // https://github.com/fonttools/fonttools/blob/f66ee05f71c8b57b5f519ee975e95edcd1466e14/Lib/fontTools/misc/transform.py#L255 - skewX = skewX * float (M_PI); - skewY = skewY * float (M_PI); - float other[6] = {1.f, tanf (skewY), tanf (skewX), 1.f, 0.f, 0.f}; + skewX = skewX * HB_PI; + skewY = skewY * HB_PI; + float other[6] = {1.f, + skewY ? tanf (skewY) : 0.f, + skewX ? tanf (skewX) : 0.f, + 1.f, + 0.f, 0.f}; transform (matrix, trans, other); } bool get_points (contour_point_vector_t &points) const { - float translateX = 0.f; - float translateY = 0.f; - float rotation = 0.f; - float scaleX = 1.f * (1 << 12); - float scaleY = 1.f * (1 << 12); - float skewX = 0.f; - float skewY = 0.f; - float tCenterX = 0.f; - float tCenterY = 0.f; + unsigned num_points = get_num_points (); - if (unlikely (!points.resize (points.length + get_num_points ()))) return false; + points.alloc (points.length + num_points + 4); // For phantom points + if (unlikely (!points.resize (points.length + num_points, false))) return false; + contour_point_t *rec_points = points.arrayZ + (points.length - num_points); + hb_memset (rec_points, 0, num_points * sizeof (rec_points[0])); - unsigned axis_width = (flags & AXIS_INDICES_ARE_SHORT) ? 2 : 1; - unsigned axes_size = numAxes * axis_width; + unsigned fl = flags; - const F2DOT14 *q = (const F2DOT14 *) (axes_size + - (flags & GID_IS_24 ? 3 : 2) + - &StructAfter<const HBUINT8> (numAxes)); + unsigned num_axes = numAxes; + unsigned axis_width = (fl & AXIS_INDICES_ARE_SHORT) ? 2 : 1; + unsigned axes_size = num_axes * axis_width; - hb_array_t<contour_point_t> rec_points = points.as_array ().sub_array (points.length - get_num_points ()); + const F2DOT14 *q = (const F2DOT14 *) (axes_size + + (fl & GID_IS_24BIT ? 3 : 2) + + (const HBUINT8 *) &pad); - unsigned count = numAxes; - if (flags & AXES_HAVE_VARIATION) + unsigned count = num_axes; + if (fl & AXES_HAVE_VARIATION) { for (unsigned i = 0; i < count; i++) - rec_points[i].x = *q++; - rec_points += count; + rec_points++->x = q++->to_int (); } else q += count; const HBUINT16 *p = (const HBUINT16 *) q; - if (flags & HAVE_TRANSLATE_X) translateX = * (const FWORD *) p++; - if (flags & HAVE_TRANSLATE_Y) translateY = * (const FWORD *) p++; - if (flags & HAVE_ROTATION) rotation = * (const F2DOT14 *) p++; - if (flags & HAVE_SCALE_X) scaleX = * (const F4DOT12 *) p++; - if (flags & HAVE_SCALE_Y) scaleY = * (const F4DOT12 *) p++; - if (flags & HAVE_SKEW_X) skewX = * (const F2DOT14 *) p++; - if (flags & HAVE_SKEW_Y) skewY = * (const F2DOT14 *) p++; - if (flags & HAVE_TCENTER_X) tCenterX = * (const FWORD *) p++; - if (flags & HAVE_TCENTER_Y) tCenterY = * (const FWORD *) p++; - - if ((flags & UNIFORM_SCALE) && !(flags & HAVE_SCALE_Y)) - scaleY = scaleX; - - if (flags & (HAVE_TRANSLATE_X | HAVE_TRANSLATE_Y)) + if (fl & (HAVE_TRANSLATE_X | HAVE_TRANSLATE_Y)) { - rec_points[0].x = translateX; - rec_points[0].y = translateY; + int translateX = (fl & HAVE_TRANSLATE_X) ? * (const FWORD *) p++ : 0; + int translateY = (fl & HAVE_TRANSLATE_Y) ? * (const FWORD *) p++ : 0; + rec_points->x = translateX; + rec_points->y = translateY; rec_points++; } - if (flags & HAVE_ROTATION) + if (fl & HAVE_ROTATION) { - rec_points[0].x = rotation; + int rotation = (fl & HAVE_ROTATION) ? ((const F4DOT12 *) p++)->to_int () : 0; + rec_points->x = rotation; rec_points++; } - if (flags & (HAVE_SCALE_X | HAVE_SCALE_Y)) + if (fl & (HAVE_SCALE_X | HAVE_SCALE_Y)) { - rec_points[0].x = scaleX; - rec_points[0].y = scaleY; + int scaleX = (fl & HAVE_SCALE_X) ? ((const F6DOT10 *) p++)->to_int () : 1 << 10; + int scaleY = (fl & HAVE_SCALE_Y) ? ((const F6DOT10 *) p++)->to_int () : 1 << 10; + if ((fl & UNIFORM_SCALE) && !(fl & HAVE_SCALE_Y)) + scaleY = scaleX; + rec_points->x = scaleX; + rec_points->y = scaleY; rec_points++; } - if (flags & (HAVE_SKEW_X | HAVE_SKEW_Y)) + if (fl & (HAVE_SKEW_X | HAVE_SKEW_Y)) { - rec_points[0].x = skewX; - rec_points[0].y = skewY; + int skewX = (fl & HAVE_SKEW_X) ? ((const F4DOT12 *) p++)->to_int () : 0; + int skewY = (fl & HAVE_SKEW_Y) ? ((const F4DOT12 *) p++)->to_int () : 0; + rec_points->x = skewX; + rec_points->y = skewY; rec_points++; } - if (flags & (HAVE_TCENTER_X | HAVE_TCENTER_Y)) + if (fl & (HAVE_TCENTER_X | HAVE_TCENTER_Y)) { - rec_points[0].x = tCenterX; - rec_points[0].y = tCenterY; + int tCenterX = (fl & HAVE_TCENTER_X) ? * (const FWORD *) p++ : 0; + int tCenterY = (fl & HAVE_TCENTER_Y) ? * (const FWORD *) p++ : 0; + rec_points->x = tCenterX; + rec_points->y = tCenterY; rec_points++; } - assert (!rec_points); return true; } - void get_transformation_from_points (hb_array_t<contour_point_t> rec_points, + void get_transformation_from_points (const contour_point_t *rec_points, float (&matrix)[4], contour_point_t &trans) const { - if (flags & AXES_HAVE_VARIATION) + unsigned fl = flags; + + if (fl & AXES_HAVE_VARIATION) rec_points += numAxes; matrix[0] = matrix[3] = 1.f; @@ -262,36 +303,35 @@ struct VarCompositeGlyphRecord float tCenterX = 0.f; float tCenterY = 0.f; - if (flags & (HAVE_TRANSLATE_X | HAVE_TRANSLATE_Y)) + if (fl & (HAVE_TRANSLATE_X | HAVE_TRANSLATE_Y)) { - translateX = rec_points[0].x; - translateY = rec_points[0].y; + translateX = rec_points->x; + translateY = rec_points->y; rec_points++; } - if (flags & HAVE_ROTATION) + if (fl & HAVE_ROTATION) { - rotation = rec_points[0].x / (1 << 14); + rotation = rec_points->x / (1 << 12); rec_points++; } - if (flags & (HAVE_SCALE_X | HAVE_SCALE_Y)) + if (fl & (HAVE_SCALE_X | HAVE_SCALE_Y)) { - scaleX = rec_points[0].x / (1 << 12); - scaleY = rec_points[0].y / (1 << 12); + scaleX = rec_points->x / (1 << 10); + scaleY = rec_points->y / (1 << 10); rec_points++; } - if (flags & (HAVE_SKEW_X | HAVE_SKEW_Y)) + if (fl & (HAVE_SKEW_X | HAVE_SKEW_Y)) { - skewX = rec_points[0].x / (1 << 14); - skewY = rec_points[0].y / (1 << 14); + skewX = rec_points->x / (1 << 12); + skewY = rec_points->y / (1 << 12); rec_points++; } - if (flags & (HAVE_TCENTER_X | HAVE_TCENTER_Y)) + if (fl & (HAVE_TCENTER_X | HAVE_TCENTER_Y)) { - tCenterX = rec_points[0].x; - tCenterY = rec_points[0].y; + tCenterX = rec_points->x; + tCenterY = rec_points->y; rec_points++; } - assert (!rec_points); translate (matrix, trans, translateX + tCenterX, translateY + tCenterY); rotate (matrix, trans, rotation); @@ -305,20 +345,20 @@ struct VarCompositeGlyphRecord { bool have_variations = flags & AXES_HAVE_VARIATION; unsigned axis_width = (flags & AXIS_INDICES_ARE_SHORT) ? 2 : 1; + unsigned num_axes = numAxes; - const HBUINT8 *p = (const HBUINT8 *) (((HBUINT8 *) &numAxes) + numAxes.static_size + (flags & GID_IS_24 ? 3 : 2)); - const HBUINT16 *q = (const HBUINT16 *) (((HBUINT8 *) &numAxes) + numAxes.static_size + (flags & GID_IS_24 ? 3 : 2)); + const HBUINT8 *p = (const HBUINT8 *) (((HBUINT8 *) &numAxes) + numAxes.static_size + (flags & GID_IS_24BIT ? 3 : 2)); + const HBUINT16 *q = (const HBUINT16 *) (((HBUINT8 *) &numAxes) + numAxes.static_size + (flags & GID_IS_24BIT ? 3 : 2)); - const F2DOT14 *a = (const F2DOT14 *) ((HBUINT8 *) (axis_width == 1 ? (p + numAxes) : (HBUINT8 *) (q + numAxes))); + const F2DOT14 *a = (const F2DOT14 *) ((HBUINT8 *) (axis_width == 1 ? (p + num_axes) : (HBUINT8 *) (q + num_axes))); - unsigned count = numAxes; + unsigned count = num_axes; for (unsigned i = 0; i < count; i++) { unsigned axis_index = axis_width == 1 ? (unsigned) *p++ : (unsigned) *q++; - signed v = have_variations ? rec_points[i].x : *a++; + signed v = have_variations ? rec_points.arrayZ[i].x : a++->to_int (); - v += setter[axis_index]; v = hb_clamp (v, -(1<<14), (1<<14)); setter[axis_index] = v; } @@ -327,8 +367,9 @@ struct VarCompositeGlyphRecord protected: HBUINT16 flags; HBUINT8 numAxes; + HBUINT16 pad; public: - DEFINE_SIZE_MIN (3); + DEFINE_SIZE_MIN (5); }; using var_composite_iter_t = composite_iter_tmpl<VarCompositeGlyphRecord>; @@ -343,6 +384,13 @@ struct VarCompositeGlyph var_composite_iter_t iter () const { return var_composite_iter_t (bytes, &StructAfter<VarCompositeGlyphRecord, GlyphHeader> (header)); } + const hb_bytes_t trim_padding () const + { + unsigned length = GlyphHeader::static_size; + for (auto &comp : iter ()) + length += comp.get_size (); + return bytes.sub_array (0, length); + } }; |