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-rw-r--r--svg-flatten/Makefile60
-rw-r--r--svg-flatten/src/main.cpp48
-rw-r--r--svg-flatten/src/svg_import_util.cpp7
-rw-r--r--svg-flatten/src/util.cpp12
l---------svg-flatten/upstream1
5 files changed, 100 insertions, 28 deletions
diff --git a/svg-flatten/Makefile b/svg-flatten/Makefile
index fc5820f..94dab9b 100644
--- a/svg-flatten/Makefile
+++ b/svg-flatten/Makefile
@@ -6,10 +6,17 @@ PKG_CONFIG ?= pkg-config
PYTHON3 ?= python3
BUILDDIR ?= build
+CACHEDIR ?= cache
PREFIX ?= /usr/local
-UPSTREAM_DIR ?= ../upstream
+UPSTREAM_DIR ?= upstream
-SOURCES := src/svg_color.cpp \
+WASI_SDK ?= wasi-sdk-11.0
+WASI_SDK_URL ?= https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-11/wasi-sdk-11.0-linux.tar.gz
+WASI_SDK_PATH ?= $(CACHEDIR)/$(WASI_SDK)
+WASI_CXX ?= $(WASI_SDK_PATH)/bin/clang++ --sysroot=$(WASI_SDK_PATH)/share/wasi-sysroot
+
+SOURCES := \
+ src/svg_color.cpp \
src/svg_doc.cpp \
src/svg_geom.cpp \
src/svg_import_util.cpp \
@@ -47,28 +54,47 @@ STB_INCLUDES ?= -isystem$(UPSTREAM_DIR)/stb
INCLUDES := -Iinclude -Isrc $(CLIPPER_INCLUDES) $(VORONOI_INCLUDES) $(POISSON_INCLUDES) $(BASE64_INCLUDES) $(ARGAGG_INCLUDES) $(CAVC_INCLUDES) $(SUBPROCESS_INCLUDES) $(MINUNIT_INCLUDES) $(STB_INCLUDES)
CXXFLAGS := -std=c++2a -g -Wall -Wextra -O2
-LDFLAGS := -lm -lstdc++ -lstdc++fs # for debian's ancient compilers
+LDFLAGS := -lm -lstdc++
-PKG_CONFIG_DEPS :=
ifdef USE_SYSTEM_PUGIXML
- CXXFLAGS += $(shell $(PKG_CONFIG) --cflags pugixml)
- LDFLAGS += $(shell $(PKG_CONFIG) --libs pugixml)
+ HOST_CXXFLAGS := $(CXXFLAGS) $(shell $(PKG_CONFIG) --cflags pugixml)
+ HOST_LDFLAGS := $(LDFLAGS) $(shell $(PKG_CONFIG) --libs pugixml)
+ HOST_SOURCES := $(SOURCES)
+ HOST_INCLUDES := $(INCLUDES)
else
- SOURCES += $(PUGIXML_SOURCES)
- INCLUDES += $(PUGIXML_INCLUDES)
+ HOST_CXXFLAGS := $(CXXFLAGS)
+ HOST_LDFLAGS := $(LDFLAGS)
+ HOST_SOURCES := $(SOURCES) $(PUGIXML_SOURCES)
+ HOST_INCLUDES := $(INCLUDES) $(PUGIXML_INCLUDES)
endif
-TARGET := svg-flatten
+HOST_LDFLAGS += -lstdc++fs # for debian's ancient compilers
+
+WASI_CXXFLAGS ?= -DNOFORK -DNOTHROW -DWASI -DPUGIXML_NO_EXCEPTIONS -fno-exceptions $(CXXFLAGS)
+
+BINARY := svg-flatten
+
+all: $(BUILDDIR)/$(BINARY)
-all: $(BUILDDIR)/$(TARGET)
+$(CACHEDIR)/$(WASI_SDK):
+ mkdir -p $(dir $@)
+ cd $(dir $@); curl -L ${WASI_SDK_URL} | tar xzf -
-$(BUILDDIR)/%.o: %.cpp
+$(BUILDDIR)/wasi/%.o: %.cpp $(CACHEDIR)/$(WASI_SDK)
@mkdir -p $(dir $@)
- $(CXX) -c $(CXXFLAGS) $(CXXFLAGS) $(INCLUDES) -o $@ $^
+ $(WASI_CXX) -c $(WASI_CXXFLAGS) $(INCLUDES) $(PUGIXML_INCLUDES) -o $@ $<
-$(BUILDDIR)/$(TARGET): $(SOURCES:%.cpp=$(BUILDDIR)/%.o)
+$(BUILDDIR)/$(BINARY).wasm: $(patsubst %.cpp,$(BUILDDIR)/wasi/%.o,$(SOURCES) $(PUGIXML_SOURCES))
+ @mkdir -p $(dir $@)
+ $(WASI_CXX) $(WASI_CXXFLAGS) -o $@ $^ $(LDFLAGS)
+
+$(BUILDDIR)/host/%.o: %.cpp
+ @mkdir -p $(dir $@)
+ $(CXX) -c $(HOST_CXXFLAGS) $(HOST_CXXFLAGS) $(HOST_INCLUDES) -o $@ $<
+
+$(BUILDDIR)/$(BINARY): $(HOST_SOURCES:%.cpp=$(BUILDDIR)/host/%.o)
@mkdir -p $(dir $@)
- $(CXX) $(CXXFLAGS) -o $@ $^ $(LDFLAGS)
+ $(CXX) $(HOST_CXXFLAGS) -o $@ $^ $(HOST_LDFLAGS)
$(BUILDDIR)/nopencv-test: src/test/nopencv_test.cpp src/nopencv.cpp src/util.cpp
@mkdir -p $(dir $@)
@@ -82,8 +108,12 @@ tests: $(BUILDDIR)/nopencv-test
.PHONY: install
install:
- $(INSTALL) $(BUILDDIR)/$(TARGET) $(PREFIX)/bin
+ $(INSTALL) $(BUILDDIR)/$(BINARY) $(PREFIX)/bin
.PHONY: clean
clean:
rm -rf $(BUILDDIR)
+
+.PHONY: mrproper
+mrproper: clean
+ rm -rf $(CACHEDIR)
diff --git a/svg-flatten/src/main.cpp b/svg-flatten/src/main.cpp
index 8512547..2ebcfe9 100644
--- a/svg-flatten/src/main.cpp
+++ b/svg-flatten/src/main.cpp
@@ -3,6 +3,7 @@
#include <cstdio>
#include <filesystem>
#include <iostream>
+#include <iomanip>
#include <fstream>
#include <algorithm>
#include <string>
@@ -17,6 +18,34 @@ using argagg::parser;
using namespace std;
using namespace gerbolyze;
+string temp_file_path(const char *suffix) {
+ ifstream rnd;
+ rnd.open("/dev/urandom", ios::in | ios::binary);
+
+ char fn_buf[8];
+ rnd.read(fn_buf, sizeof(fn_buf));
+
+ if (rnd.rdstate()) {
+ cerr << "Error getting random data for temporary file name" << endl;
+ abort();
+ }
+
+ ostringstream out;
+ out << "tmp_";
+ for (size_t i=0; i<sizeof(fn_buf); i++) {
+ out << setfill('0') << setw(2) << setbase(16) << static_cast<int>(fn_buf[i] & 0xff);
+ }
+ out << suffix;
+
+ cerr << "out \"" << out.str() << "\"" << endl;
+#ifndef WASI
+ filesystem::path base = filesystem::temp_directory_path();
+ return (base / out.str()).native();
+#else
+ return "/tmp/" + out.str();
+#endif
+}
+
int main(int argc, char **argv) {
parser argparser {{
{"help", {"-h", "--help"},
@@ -114,15 +143,7 @@ int main(int argc, char **argv) {
<< endl;
argagg::parser_results args;
- try {
- args = argparser.parse(argc, argv);
- } catch (const std::exception& e) {
- argagg::fmt_ostream fmt(cerr);
- fmt << usage.str() << argparser << '\n'
- << "Encountered exception while parsing arguments: " << e.what()
- << '\n';
- return EXIT_FAILURE;
- }
+ args = argparser.parse(argc, argv);
if (args["help"]) {
argagg::fmt_ostream fmt(cerr);
@@ -267,8 +288,8 @@ int main(int argc, char **argv) {
transform(ending.begin(), ending.end(), ending.begin(), [](unsigned char c){ return std::tolower(c); }); /* c++ yeah */
}
- filesystem::path barf = { filesystem::temp_directory_path() /= (std::tmpnam(nullptr) + string(".svg")) };
- filesystem::path frob = { filesystem::temp_directory_path() /= (std::tmpnam(nullptr) + string(".svg")) };
+ string barf = temp_file_path(".svg");
+ string frob = temp_file_path(".svg");
bool is_svg = args["force_svg"] || (ending == ".svg" && !args["force_png"]);
if (!is_svg) {
@@ -352,10 +373,15 @@ int main(int argc, char **argv) {
}
string dpi_str = to_string(dpi);
+#ifndef NOFORK
const char *command_line[] = {nullptr, "--keep-named-groups", "--dpi", dpi_str.c_str(), barf.c_str(), frob.c_str(), nullptr};
if (run_cargo_command("usvg", command_line, "USVG")) {
return EXIT_FAILURE;
}
+#else
+ cerr << "Error: The caller of svg-flatten (you?) must use --no-usvg and run usvg externally since wasi does not yet support fork/exec." << endl;
+ return EXIT_FAILURE;
+#endif
}
VectorizerSelectorizer vec_sel(vectorizer, args["vectorizer_map"] ? args["vectorizer_map"].as<string>() : "");
diff --git a/svg-flatten/src/svg_import_util.cpp b/svg-flatten/src/svg_import_util.cpp
index cb60482..85db3ad 100644
--- a/svg-flatten/src/svg_import_util.cpp
+++ b/svg-flatten/src/svg_import_util.cpp
@@ -61,6 +61,11 @@ string gerbolyze::parse_data_iri(const string &data_url) {
size_t b64_begin = data_url.find_first_not_of(" ", foo + strlen("base64,"));
assert(b64_begin != string::npos);
- return base64_decode(data_url.substr(b64_begin));
+ bool err_out;
+ string out = base64_decode(data_url.substr(b64_begin), false, &err_out);
+
+ if (err_out)
+ return "";
+ return out;
}
diff --git a/svg-flatten/src/util.cpp b/svg-flatten/src/util.cpp
index e88f4e9..d9a5a09 100644
--- a/svg-flatten/src/util.cpp
+++ b/svg-flatten/src/util.cpp
@@ -1,16 +1,19 @@
-#include <pwd.h>
#include <sys/types.h>
#include <string>
#include <iostream>
+#ifndef NOFORK
+#include <pwd.h>
#include <subprocess.h>
+#endif
#include <filesystem>
#include "util.h"
using namespace std;
+#ifndef NOFORK
int gerbolyze::run_cargo_command(const char *cmd_name, const char *cmdline[], const char *envvar) {
const char *homedir;
if ((homedir = getenv("HOME")) == NULL) {
@@ -81,4 +84,11 @@ int gerbolyze::run_cargo_command(const char *cmd_name, const char *cmdline[], co
return 0;
}
+#else
+int gerbolyze::run_cargo_command(const char *cmd_name, const char *cmdline[], const char *envvar) {
+ (void) cmd_name, (void) cmdline, (void) envvar;
+ cerr << "Error: Cannot spawn " << cmd_name << " subprocess since binary was built with fork/exec disabled (-DNOFORK=1)" << endl;
+ return EXIT_FAILURE;
+}
+#endif
diff --git a/svg-flatten/upstream b/svg-flatten/upstream
new file mode 120000
index 0000000..f84a283
--- /dev/null
+++ b/svg-flatten/upstream
@@ -0,0 +1 @@
+../upstream \ No newline at end of file
generated by cgit (git 2.34.1) at 2024-11-22 02:19:16 +0000