fpng: add recipe

recipes/fpng/all/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.8)
+project(fpng LANGUAGES CXX)
+
+include(GNUInstallDirs)
+
+add_library(fpng ${FPNG_SRC_DIR}/src/fpng.cpp)
+set_target_properties(fpng PROPERTIES
+    PUBLIC_HEADER ${FPNG_SRC_DIR}/src/fpng.h
+    WINDOWS_EXPORT_ALL_SYMBOLS ON
+)
+target_compile_features(fpng PRIVATE cxx_std_11)
+if(FPNG_WITH_SSE)
+    if (NOT MSVC)
+        target_compile_options(fpng PRIVATE -msse4.1 -mpclmul)
+    endif()
+    target_compile_definitions(fpng PRIVATE -DFPNG_NO_SSE=0)
+else()
+    target_compile_definitions(fpng PRIVATE -DFPNG_NO_SSE=1)
+endif()
+
+find_library(LIBM m)
+target_link_libraries(fpng PRIVATE $<$<BOOL:${LIBM}>:${LIBM}>)
+
+install(
+    TARGETS fpng
+    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
+    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+    ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
+    PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
+)

recipes/fpng/all/conandata.yml

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+sources:
+  "1.0.6":
+    url: "https://github.com/richgel999/fpng/archive/01296df391d70e68af9d64baa3b7b80d9e38caa6.tar.gz"
+    sha256: "8c07bf75f01a33d797b895afd4ddf5302486a80b1e93ecb1956df00788748444"

recipes/fpng/all/conanfile.py

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+from conan import ConanFile
+from conan.tools.cmake import CMake, CMakeToolchain, cmake_layout
+from conan.tools.files import get, save, load
+from conan.tools.build import check_min_cppstd
+import os
+
+required_conan_version = ">=1.53.0"
+
+
+class FpngConan(ConanFile):
+    name = "fpng"
+    description = "Super fast C++ .PNG writer/reader"
+    license = "unlicense",
+    url = "https://github.com/conan-io/conan-center-index"
+    homepage = "https://github.com/richgel999/fpng"
+    topics = ("png", "writer", "reader")
+    package_type = "library"
+    settings = "os", "arch", "compiler", "build_type"
+    options = {
+        "shared": [True, False],
+        "fPIC": [True, False],
+        "with_sse": [True, False],
+    }
+    default_options = {
+        "shared": False,
+        "fPIC": True,
+        "with_sse": False,
+    }
+    exports_sources = ["CMakeLists.txt"]
+
+    @property
+    def _min_cppstd(self):
+        return 11
+
+    def config_options(self):
+        if self.settings.os == "Windows":
+            del self.options.fPIC
+
+    def configure(self):
+        if self.options.shared:
+            self.options.rm_safe("fPIC")
+
+    def layout(self):
+        cmake_layout(self, src_folder="src")
+
+    def validate(self):
+        if self.settings.compiler.get_safe("cppstd"):
+            check_min_cppstd(self, self._min_cppstd)
+
+    def source(self):
+        get(self, **self.conan_data["sources"][self.version], strip_root=True)
+
+    def generate(self):
+        tc = CMakeToolchain(self)
+        tc.variables["FPNG_SRC_DIR"] = self.source_folder.replace("\\", "/")
+        tc.variables["FPNG_WITH_SSE"] = self.options.with_sse
+        tc.generate()
+
+    def build(self):
+        cmake = CMake(self)
+        cmake.configure(build_script_folder=os.path.join(self.source_folder, os.pardir))
+        cmake.build()
+
+    def package(self):
+        filename = os.path.join(self.source_folder, "src", "fpng.cpp")
+        file_content = load(self, filename)
+        license_start = "	This is free and unencumbered software"
+        license_end = "*/"
+        license_contents = file_content[file_content.find(license_start):file_content.find(license_end)]
+        save(self, os.path.join(self.package_folder, "licenses", "LICENSE"), license_contents)
+        cmake = CMake(self)
+        cmake.install()
+
+    def package_info(self):
+        self.cpp_info.libs = ["fpng"]
+        if self.settings.os in ("FreeBSD", "Linux"):
+            self.cpp_info.system_libs = ["m"]

recipes/fpng/all/test_package/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.8)
+project(test_package LANGUAGES CXX)
+
+find_package(fpng REQUIRED CONFIG)
+
+add_executable(${PROJECT_NAME} test_package.cpp)
+target_link_libraries(${PROJECT_NAME} PRIVATE fpng::fpng)
+target_compile_features(${PROJECT_NAME} PRIVATE cxx_std_11)

recipes/fpng/all/test_package/conanfile.py

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+from conan import ConanFile
+from conan.tools.build import can_run
+from conan.tools.cmake import CMake, cmake_layout
+import os
+
+
+class TestPackageConan(ConanFile):
+    settings = "os", "arch", "compiler", "build_type"
+    generators = "CMakeToolchain", "CMakeDeps", "VirtualRunEnv"
+    test_type = "explicit"
+
+    def layout(self):
+        cmake_layout(self)
+
+    def requirements(self):
+        self.requires(self.tested_reference_str)
+
+    def build(self):
+        cmake = CMake(self)
+        cmake.configure()
+        cmake.build()
+
+    def test(self):
+        if can_run(self):
+            bin_path = os.path.join(self.cpp.build.bindirs[0], "test_package")
+            font_path = os.path.join(self.source_folder, "OpenSans-Bold.ttf")
+            self.run(f"{bin_path} {font_path}", env="conanrun")

recipes/fpng/all/test_package/test_package.cpp

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+#include <vector>
+#include <cstdint>
+
+#include "fpng.h"
+
+int main() {
+	fpng::fpng_init();
+
+    auto const WIDTH = 800;
+    auto const HEIGHT = 600;
+    auto const CHANNEL = 3;
+
+    auto buffer = std::vector<uint8_t>{};
+    buffer.reserve(WIDTH * HEIGHT * CHANNEL);
+
+    uint32_t flags = 0;
+
+    auto image = std::vector<uint8_t>{};
+    fpng::fpng_encode_image_to_memory(buffer.data(), WIDTH, HEIGHT, CHANNEL, image, flags);
+
+    return 0;
+}

recipes/fpng/config.yml

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+versions:
+  "1.0.6":
+    folder: all