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-rw-r--r--src/3rdparty/harfbuzz-ng/src/hb-cff2-interp-cs.hh128
1 files changed, 69 insertions, 59 deletions
diff --git a/src/3rdparty/harfbuzz-ng/src/hb-cff2-interp-cs.hh b/src/3rdparty/harfbuzz-ng/src/hb-cff2-interp-cs.hh
index 332ece31cd..915b10cf39 100644
--- a/src/3rdparty/harfbuzz-ng/src/hb-cff2-interp-cs.hh
+++ b/src/3rdparty/harfbuzz-ng/src/hb-cff2-interp-cs.hh
@@ -35,37 +35,27 @@ using namespace OT;
struct blend_arg_t : number_t
{
- void init ()
- {
- number_t::init ();
- deltas.init ();
- }
-
- void fini ()
- {
- number_t::fini ();
- deltas.fini_deep ();
- }
-
void set_int (int v) { reset_blends (); number_t::set_int (v); }
void set_fixed (int32_t v) { reset_blends (); number_t::set_fixed (v); }
void set_real (double v) { reset_blends (); number_t::set_real (v); }
void set_blends (unsigned int numValues_, unsigned int valueIndex_,
- unsigned int numBlends, hb_array_t<const blend_arg_t> blends_)
+ hb_array_t<const blend_arg_t> blends_)
{
numValues = numValues_;
valueIndex = valueIndex_;
- deltas.resize (numBlends);
+ unsigned numBlends = blends_.length;
+ if (unlikely (!deltas.resize_exact (numBlends)))
+ return;
for (unsigned int i = 0; i < numBlends; i++)
- deltas[i] = blends_[i];
+ deltas.arrayZ[i] = blends_.arrayZ[i];
}
bool blending () const { return deltas.length > 0; }
void reset_blends ()
{
numValues = valueIndex = 0;
- deltas.resize (0);
+ deltas.shrink (0);
}
unsigned int numValues;
@@ -73,17 +63,16 @@ struct blend_arg_t : number_t
hb_vector_t<number_t> deltas;
};
-typedef interp_env_t<blend_arg_t> BlendInterpEnv;
typedef biased_subrs_t<CFF2Subrs> cff2_biased_subrs_t;
-struct cff2_cs_interp_env_t : cs_interp_env_t<blend_arg_t, CFF2Subrs>
+template <typename ELEM>
+struct cff2_cs_interp_env_t : cs_interp_env_t<ELEM, CFF2Subrs>
{
template <typename ACC>
- void init (const byte_str_t &str, ACC &acc, unsigned int fd,
- const int *coords_=nullptr, unsigned int num_coords_=0)
+ cff2_cs_interp_env_t (const hb_ubytes_t &str, ACC &acc, unsigned int fd,
+ const int *coords_=nullptr, unsigned int num_coords_=0)
+ : SUPER (str, acc.globalSubrs, acc.privateDicts[fd].localSubrs)
{
- SUPER::init (str, acc.globalSubrs, acc.privateDicts[fd].localSubrs);
-
coords = coords_;
num_coords = num_coords_;
varStore = acc.varStore;
@@ -112,18 +101,14 @@ struct cff2_cs_interp_env_t : cs_interp_env_t<blend_arg_t, CFF2Subrs>
return OpCode_return;
}
- const blend_arg_t& eval_arg (unsigned int i)
+ const ELEM& eval_arg (unsigned int i)
{
- blend_arg_t &arg = argStack[i];
- blend_arg (arg);
- return arg;
+ return SUPER::argStack[i];
}
- const blend_arg_t& pop_arg ()
+ const ELEM& pop_arg ()
{
- blend_arg_t &arg = argStack.pop ();
- blend_arg (arg);
- return arg;
+ return SUPER::argStack.pop ();
}
void process_blend ()
@@ -133,11 +118,11 @@ struct cff2_cs_interp_env_t : cs_interp_env_t<blend_arg_t, CFF2Subrs>
region_count = varStore->varStore.get_region_index_count (get_ivs ());
if (do_blend)
{
- if (unlikely (!scalars.resize (region_count)))
- set_error ();
+ if (unlikely (!scalars.resize_exact (region_count)))
+ SUPER::set_error ();
else
- varStore->varStore.get_scalars (get_ivs (), coords, num_coords,
- &scalars[0], region_count);
+ varStore->varStore.get_region_scalars (get_ivs (), coords, num_coords,
+ &scalars[0], region_count);
}
seen_blend = true;
}
@@ -145,10 +130,10 @@ struct cff2_cs_interp_env_t : cs_interp_env_t<blend_arg_t, CFF2Subrs>
void process_vsindex ()
{
- unsigned int index = argStack.pop_uint ();
+ unsigned int index = SUPER::argStack.pop_uint ();
if (unlikely (seen_vsindex () || seen_blend))
{
- set_error ();
+ SUPER::set_error ();
}
else
{
@@ -163,24 +148,23 @@ struct cff2_cs_interp_env_t : cs_interp_env_t<blend_arg_t, CFF2Subrs>
void set_ivs (unsigned int ivs_) { ivs = ivs_; }
bool seen_vsindex () const { return seen_vsindex_; }
- protected:
- void blend_arg (blend_arg_t &arg)
+ double blend_deltas (hb_array_t<const ELEM> deltas) const
{
- if (do_blend && arg.blending ())
+ double v = 0;
+ if (do_blend)
{
- if (likely (scalars.length == arg.deltas.length))
+ if (likely (scalars.length == deltas.length))
{
- double v = arg.to_real ();
- for (unsigned int i = 0; i < scalars.length; i++)
- {
- v += (double)scalars[i] * arg.deltas[i].to_real ();
- }
- arg.set_real (v);
- arg.deltas.resize (0);
+ unsigned count = scalars.length;
+ for (unsigned i = 0; i < count; i++)
+ v += (double) scalars.arrayZ[i] * deltas.arrayZ[i].to_real ();
}
}
+ return v;
}
+ bool have_coords () const { return num_coords; }
+
protected:
const int *coords;
unsigned int num_coords;
@@ -192,22 +176,24 @@ struct cff2_cs_interp_env_t : cs_interp_env_t<blend_arg_t, CFF2Subrs>
bool seen_vsindex_;
bool seen_blend;
- typedef cs_interp_env_t<blend_arg_t, CFF2Subrs> SUPER;
+ typedef cs_interp_env_t<ELEM, CFF2Subrs> SUPER;
};
-template <typename OPSET, typename PARAM, typename PATH=path_procs_null_t<cff2_cs_interp_env_t, PARAM>>
-struct cff2_cs_opset_t : cs_opset_t<blend_arg_t, OPSET, cff2_cs_interp_env_t, PARAM, PATH>
+template <typename OPSET, typename PARAM, typename ELEM, typename PATH=path_procs_null_t<cff2_cs_interp_env_t<ELEM>, PARAM>>
+struct cff2_cs_opset_t : cs_opset_t<ELEM, OPSET, cff2_cs_interp_env_t<ELEM>, PARAM, PATH>
{
- static void process_op (op_code_t op, cff2_cs_interp_env_t &env, PARAM& param)
+ static void process_op (op_code_t op, cff2_cs_interp_env_t<ELEM> &env, PARAM& param)
{
switch (op) {
case OpCode_callsubr:
case OpCode_callgsubr:
- /* a subroutine number shoudln't be a blended value */
+ /* a subroutine number shouldn't be a blended value */
+#if 0
if (unlikely (env.argStack.peek ().blending ()))
{
env.set_error ();
break;
}
+#endif
SUPER::process_op (op, env, param);
break;
@@ -216,11 +202,13 @@ struct cff2_cs_opset_t : cs_opset_t<blend_arg_t, OPSET, cff2_cs_interp_env_t, PA
break;
case OpCode_vsindexcs:
+#if 0
if (unlikely (env.argStack.peek ().blending ()))
{
env.set_error ();
break;
}
+#endif
OPSET::process_vsindex (env, param);
break;
@@ -229,7 +217,29 @@ struct cff2_cs_opset_t : cs_opset_t<blend_arg_t, OPSET, cff2_cs_interp_env_t, PA
}
}
- static void process_blend (cff2_cs_interp_env_t &env, PARAM& param)
+ template <typename T = ELEM,
+ hb_enable_if (hb_is_same (T, blend_arg_t))>
+ static void process_arg_blend (cff2_cs_interp_env_t<ELEM> &env,
+ ELEM &arg,
+ const hb_array_t<const ELEM> blends,
+ unsigned n, unsigned i)
+ {
+ if (env.have_coords ())
+ arg.set_int (round (arg.to_real () + env.blend_deltas (blends)));
+ else
+ arg.set_blends (n, i, blends);
+ }
+ template <typename T = ELEM,
+ hb_enable_if (!hb_is_same (T, blend_arg_t))>
+ static void process_arg_blend (cff2_cs_interp_env_t<ELEM> &env,
+ ELEM &arg,
+ const hb_array_t<const ELEM> blends,
+ unsigned n, unsigned i)
+ {
+ arg.set_real (arg.to_real () + env.blend_deltas (blends));
+ }
+
+ static void process_blend (cff2_cs_interp_env_t<ELEM> &env, PARAM& param)
{
unsigned int n, k;
@@ -246,26 +256,26 @@ struct cff2_cs_opset_t : cs_opset_t<blend_arg_t, OPSET, cff2_cs_interp_env_t, PA
}
for (unsigned int i = 0; i < n; i++)
{
- const hb_array_t<const blend_arg_t> blends = env.argStack.get_subarray (start + n + (i * k));
- env.argStack[start + i].set_blends (n, i, k, blends);
+ const hb_array_t<const ELEM> blends = env.argStack.sub_array (start + n + (i * k), k);
+ process_arg_blend (env, env.argStack[start + i], blends, n, i);
}
/* pop off blend values leaving default values now adorned with blend values */
env.argStack.pop (k * n);
}
- static void process_vsindex (cff2_cs_interp_env_t &env, PARAM& param)
+ static void process_vsindex (cff2_cs_interp_env_t<ELEM> &env, PARAM& param)
{
env.process_vsindex ();
env.clear_args ();
}
private:
- typedef cs_opset_t<blend_arg_t, OPSET, cff2_cs_interp_env_t, PARAM, PATH> SUPER;
+ typedef cs_opset_t<ELEM, OPSET, cff2_cs_interp_env_t<ELEM>, PARAM, PATH> SUPER;
};
-template <typename OPSET, typename PARAM>
-struct cff2_cs_interpreter_t : cs_interpreter_t<cff2_cs_interp_env_t, OPSET, PARAM> {};
+template <typename OPSET, typename PARAM, typename ELEM>
+using cff2_cs_interpreter_t = cs_interpreter_t<cff2_cs_interp_env_t<ELEM>, OPSET, PARAM>;
} /* namespace CFF */