diff options
Diffstat (limited to 'src/3rdparty/harfbuzz-ng/src/hb-cff2-interp-cs.hh')
-rw-r--r-- | src/3rdparty/harfbuzz-ng/src/hb-cff2-interp-cs.hh | 141 |
1 files changed, 74 insertions, 67 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 a72100e1ab..06fbb72c61 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; @@ -73,30 +63,25 @@ 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; - seen_blend = false; - seen_vsindex_ = false; - scalars.init (); - do_blend = (coords != nullptr) && num_coords && (varStore != &Null(CFF2VariationStore)); + do_blend = num_coords && coords && varStore->size; set_ivs (acc.privateDicts[fd].ivs); } void fini () { - scalars.fini (); SUPER::fini (); } @@ -112,18 +97,14 @@ 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 () @@ -133,10 +114,11 @@ 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) { - scalars.resize (region_count); - varStore->varStore.get_scalars (get_ivs (), - (int *)coords, num_coords, - &scalars[0], region_count); + if (unlikely (!scalars.resize_exact (region_count))) + SUPER::set_error (); + else + varStore->varStore.get_region_scalars (get_ivs (), coords, num_coords, + &scalars[0], region_count); } seen_blend = true; } @@ -144,10 +126,10 @@ 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 { @@ -162,51 +144,52 @@ 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; - const CFF2VariationStore *varStore; + const CFF2ItemVariationStore *varStore; unsigned int region_count; unsigned int ivs; hb_vector_t<float> scalars; bool do_blend; - bool seen_vsindex_; - bool seen_blend; + bool seen_vsindex_ = false; + bool seen_blend = false; - 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; @@ -215,11 +198,13 @@ 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; @@ -228,7 +213,29 @@ 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; @@ -245,26 +252,26 @@ 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 */ |