Initial commit

lodepng/all/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.15)
+project(lodepng LANGUAGES CXX)
+
+add_library(lodepng ${LODEPNG_SRC_DIR}/lodepng.cpp)
+set_target_properties(lodepng PROPERTIES WINDOWS_EXPORT_ALL_SYMBOLS ON)
+
+include(GNUInstallDirs)
+install(TARGETS lodepng
+    RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}"
+    LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}"
+    ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}")
+install(FILES ${LODEPNG_SRC_DIR}/lodepng.h DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})

lodepng/all/conandata.yml

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+sources:
+  "cci.20250727":
+    url: "https://github.com/lvandeve/lodepng/archive/344b4b442d0de0787a999724dd6569461a00c92c.tar.gz"
+    sha256: "ffc13ecfbe27978e018e2ac6b089d6a2bd1a571d81b5ebb50e7364ec17ca3a74"
+  "cci.20241228":
+    url: "https://github.com/lvandeve/lodepng/archive/0b1d9ccfc2093e5d6620cd9a11d03ee6ff6705f5.tar.gz"
+    sha256: "d3efafbd2c938f834aa9ff764e93425fdf7f78e9f74e92285ff991b45708c72a"

lodepng/all/conanfile.py

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+from conan import ConanFile
+from conan.errors import ConanInvalidConfiguration
+from conan.tools.cmake import CMake, CMakeToolchain, cmake_layout
+from conan.tools.files import copy, get
+from conan.tools.microsoft import is_msvc, is_msvc_static_runtime
+import os
+
+required_conan_version = ">=1.53.0"
+
+
+class LodepngConan(ConanFile):
+    name = "lodepng"
+    description = "PNG encoder and decoder in C and C++, without dependencies."
+    license = "Zlib"
+    topics = ("png", "encoder", "decoder")
+    homepage = "https://github.com/lvandeve/lodepng"
+    url = "https://github.com/conan-io/conan-center-index"
+
+    package_type = "library"
+    settings = "os", "arch", "compiler", "build_type"
+    options = {
+        "shared": [True, False],
+        "fPIC": [True, False],
+    }
+    default_options = {
+        "shared": False,
+        "fPIC": True,
+    }
+
+    exports_sources = "CMakeLists.txt"
+
+    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.options.shared and is_msvc(self) and is_msvc_static_runtime(self):
+            raise ConanInvalidConfiguration("lodepng shared doesn't support Visual Studio with static runtime")
+
+    def source(self):
+        get(self, **self.conan_data["sources"][self.version], strip_root=True)
+
+    def generate(self):
+        tc = CMakeToolchain(self)
+        tc.variables["LODEPNG_SRC_DIR"] = self.source_folder.replace("\\", "/")
+        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):
+        copy(self, "LICENSE", src=self.source_folder, dst=os.path.join(self.package_folder, "licenses"))
+        cmake = CMake(self)
+        cmake.install()
+
+    def package_info(self):
+        self.cpp_info.libs = ["lodepng"]
+        if self.settings.os in ["Linux", "FreeBSD"]:
+            self.cpp_info.system_libs.append("m")

lodepng/all/test_package/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.15)
+project(test_package LANGUAGES CXX)
+
+find_package(lodepng REQUIRED CONFIG)
+
+add_executable(${PROJECT_NAME} test_package.cpp)
+target_link_libraries(${PROJECT_NAME} PRIVATE lodepng::lodepng)
+set_property(TARGET ${PROJECT_NAME} PROPERTY CXX_STANDARD 11)

lodepng/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")
+            self.run(bin_path, env="conanrun")

lodepng/all/test_package/test_package.cpp

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+#include <iostream>
+#include "lodepng.h"
+
+int main(int argc, const char *argv[])
+{
+    LodePNGCompressSettings compress_settings;
+    lodepng_compress_settings_init(&compress_settings);
+
+    printf("compress_settings.btype = %d\n", compress_settings.btype);
+
+    return 0;
+}

lodepng/all/test_v1_package/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.1)
+project(test_package)
+
+include(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake)
+conan_basic_setup(TARGETS)
+
+add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/../test_package
+                 ${CMAKE_CURRENT_BINARY_DIR}/test_package)

lodepng/all/test_v1_package/conanfile.py

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+from conans import ConanFile, CMake, tools
+import os
+
+
+class TestPackageConan(ConanFile):
+    settings = "os", "arch", "compiler", "build_type"
+    generators = "cmake", "cmake_find_package_multi"
+
+    def build(self):
+        cmake = CMake(self)
+        cmake.configure()
+        cmake.build()
+
+    def test(self):
+        if not tools.cross_building(self):
+            bin_path = os.path.join("bin", "test_package")
+            self.run(bin_path, run_environment=True)