add draco/1.3.5

recipes/draco/all/CMakeLists.txt

@@ -0,0 +1,7 @@
+cmake_minimum_required(VERSION 2.8.11)
+project(cmake_wrapper)
+
+include(conanbuildinfo.cmake)
+conan_basic_setup()
+
+add_subdirectory("source_subfolder")

recipes/draco/all/conandata.yml

@@ -0,0 +1,4 @@
+sources:
+  "1.3.5":
+    url: "https://github.com/google/draco/archive/1.3.5.tar.gz"
+    sha256: "a3ac692397574166ad99493ff1efcd7b5c69b580e7eb4500d5d181b2f676aa6e"

recipes/draco/all/conanfile.py

@@ -0,0 +1,126 @@
+import os
+
+from conans import ConanFile, CMake, tools
+
+class DracoConan(ConanFile):
+    name = "draco"
+    description = "Draco is a library for compressing and decompressing 3D " \
+                  "geometric meshes and point clouds. It is intended to " \
+                  "improve the storage and transmission of 3D graphics."
+    license = "Apache-2.0"
+    topics = ("conan", "draco", "3d", "graphics", "mesh", "compression", "decompression")
+    homepage = "https://google.github.io/draco/"
+    url = "https://github.com/conan-io/conan-center-index"
+    exports_sources = "CMakeLists.txt"
+    generators = "cmake"
+    settings = "os", "arch", "compiler", "build_type"
+    short_paths = True
+    options = {
+        "shared": [True, False],
+        "fPIC": [True, False],
+        "target": ["encode_and_decode", "encode_only", "decode_only"],
+        "enable_point_cloud_compression": [True, False],
+        "enable_mesh_compression": [True, False],
+        "enable_standard_edgebreaker": [True, False],
+        "enable_predictive_edgebreaker": [True, False],
+        "enable_backwards_compatibility": [True, False]
+    }
+    default_options = {
+        "shared": False,
+        "fPIC": True,
+        "target": "encode_and_decode",
+        "enable_point_cloud_compression": True,
+        "enable_mesh_compression": True,
+        "enable_standard_edgebreaker": True,
+        "enable_predictive_edgebreaker": True,
+        "enable_backwards_compatibility": True
+    }
+
+    @property
+    def _source_subfolder(self):
+        return "source_subfolder"
+
+    @property
+    def _build_subfolder(self):
+        return "build_subfolder"
+
+    def config_options(self):
+        if self.settings.os == "Windows":
+            del self.options.fPIC
+
+    def configure(self):
+        if self.options.shared:
+            del self.options.fPIC
+        if not self.options.enable_mesh_compression:
+            del self.options.enable_standard_edgebreaker
+            del self.options.enable_predictive_edgebreaker
+
+    def source(self):
+        tools.get(**self.conan_data["sources"][self.version])
+        os.rename(self.name + "-" + self.version, self._source_subfolder)
+
+    def build(self):
+        cmake = self._configure_cmake()
+        cmake.build(target=self._get_target())
+
+    def _configure_cmake(self):
+        cmake = CMake(self)
+        cmake.definitions["ENABLE_POINT_CLOUD_COMPRESSION"] = self.options.enable_point_cloud_compression
+        cmake.definitions["ENABLE_MESH_COMPRESSION"] = self.options.enable_mesh_compression
+        if self.options.enable_mesh_compression:
+            cmake.definitions["ENABLE_STANDARD_EDGEBREAKER"] = self.options.enable_standard_edgebreaker
+            cmake.definitions["ENABLE_PREDICTIVE_EDGEBREAKER"] = self.options.enable_predictive_edgebreaker
+        cmake.definitions["ENABLE_BACKWARDS_COMPATIBILITY"] = self.options.enable_backwards_compatibility
+
+        # BUILD_FOR_GLTF is not needed, it is equivalent to:
+        # - enable_point_cloud_compression=False
+        # - enable_mesh_compression=True
+        # - enable_standard_edgebreaker=True
+        # - enable_predictive_edgebreaker=False
+        # - enable_backwards_compatibility=False
+        cmake.definitions["BUILD_FOR_GLTF"] = False
+
+        cmake.definitions["BUILD_UNITY_PLUGIN"] = False
+        cmake.definitions["BUILD_MAYA_PLUGIN"] = False
+        cmake.definitions["BUILD_USD_PLUGIN"] = False
+
+        cmake.definitions["ENABLE_CCACHE"] = False
+        cmake.definitions["ENABLE_DISTCC"] = False
+        cmake.definitions["ENABLE_EXTRA_SPEED"] = False
+        cmake.definitions["ENABLE_EXTRA_WARNINGS"] = False
+        cmake.definitions["ENABLE_GOMA"] = False
+        cmake.definitions["ENABLE_JS_GLUE"] = False
+        cmake.definitions["ENABLE_DECODER_ATTRIBUTE_DEDUPLICATION"] = False
+        cmake.definitions["ENABLE_TESTS"] = False
+        cmake.definitions["ENABLE_WASM"] = False
+        cmake.definitions["ENABLE_WERROR"] = False
+        cmake.definitions["ENABLE_WEXTRA"] = False
+        cmake.definitions["IGNORE_EMPTY_BUILD_TYPE"] = False
+        cmake.definitions["BUILD_ANIMATION_ENCODING"] = False
+
+        cmake.configure(build_folder=self._build_subfolder)
+        return cmake
+
+    def _get_target(self):
+        return {
+            "encode_and_decode": "draco",
+            "encode_only": "dracoenc",
+            "decode_only": "dracodec"
+        }.get(str(self.options.target))
+
+    def package(self):
+        self.copy("LICENSE", dst="licenses", src=self._source_subfolder)
+
+        self.copy(pattern="*.h", dst="include", src=os.path.join(self._source_subfolder, "src"))
+        self.copy(pattern="*.h", dst=os.path.join("include", "draco"), src=os.path.join(self._build_subfolder, "draco"))
+
+        build_lib_dir = os.path.join(self._build_subfolder, "lib")
+        build_bin_dir = os.path.join(self._build_subfolder, "bin")
+        self.copy(pattern="*.a", dst="lib", src=build_lib_dir, keep_path=False)
+        self.copy(pattern="*.lib", dst="lib", src=build_lib_dir, keep_path=False)
+        self.copy(pattern="*.dylib", dst="lib", src=build_lib_dir, keep_path=False)
+        self.copy(pattern="*.so*", dst="lib", src=build_lib_dir, keep_path=False, symlinks=True)
+        self.copy(pattern="*.dll", dst="bin", src=build_bin_dir, keep_path=False)
+
+    def package_info(self):
+        self.cpp_info.libs = tools.collect_libs(self)

recipes/draco/all/test_package/CMakeLists.txt

@@ -0,0 +1,11 @@
+cmake_minimum_required(VERSION 2.8.11)
+project(test_package)
+
+set(CMAKE_CXX_STANDARD 11)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+include(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake)
+conan_basic_setup()
+
+add_executable(${PROJECT_NAME} test_package.cpp)
+target_link_libraries(${PROJECT_NAME} ${CONAN_LIBS})

recipes/draco/all/test_package/conanfile.py

@@ -0,0 +1,16 @@
+import os
+
+from conans import ConanFile, CMake
+
+class TestPackageConan(ConanFile):
+    settings = "os", "compiler", "build_type", "arch"
+    generators = "cmake"
+
+    def build(self):
+        cmake = CMake(self)
+        cmake.configure()
+        cmake.build()
+
+    def test(self):
+        bin_path = os.path.join("bin", "test_package")
+        self.run(bin_path, run_environment=True)

recipes/draco/all/test_package/test_package.cpp

@@ -0,0 +1,124 @@
+#include <draco/compression/encode.h>
+
+#include <cmath>
+#include <iostream>
+#include <memory>
+#include <vector>
+
+struct Vec3D {
+  float x, y, z;
+  Vec3D(float x, float y, float z): x(x), y(y), z(z) {}
+};
+
+struct Triangle {
+  uint32_t i1, i2, i3;
+  Triangle(uint32_t i1, uint32_t i2, uint32_t i3): i1(i1), i2(i2), i3(i3) {}
+};
+
+struct IndexedMesh {
+  std::vector<Vec3D> vertices;
+  std::vector<Triangle> primitives;
+
+  unsigned long long size() {
+    return vertices.size() * sizeof(Vec3D) + primitives.size() * sizeof(Triangle);
+  }
+};
+
+std::vector<Vec3D> create_icosahedron_vertices() {
+  std::vector<Vec3D> vertices;
+  vertices.reserve(12);
+
+  const float t = (1.0f + std::sqrt(5.0f)) / 2.0f;
+
+  vertices.emplace_back(-1.0f,  t, 0.0f);
+  vertices.emplace_back( 1.0f,  t, 0.0f);
+  vertices.emplace_back(-1.0f, -t, 0.0f);
+  vertices.emplace_back( 1.0f, -t, 0.0f);
+
+  vertices.emplace_back(0.0f, -1.0f,  t);
+  vertices.emplace_back(0.0f,  1.0f,  t);
+  vertices.emplace_back(0.0f, -1.0f, -t);
+  vertices.emplace_back(0.0f,  1.0f, -t);
+
+  vertices.emplace_back( t, 0.0f, -1.0f);
+  vertices.emplace_back( t, 0.0f,  1.0f);
+  vertices.emplace_back(-t, 0.0f, -1.0f);
+  vertices.emplace_back(-t, 0.0f,  1.0f);
+
+  return vertices;
+}
+
+std::vector<Triangle> create_icosahedron_primitives() {
+  std::vector<Triangle> primitives;
+  primitives.reserve(20);
+
+  primitives.emplace_back(0 , 11, 5 );
+  primitives.emplace_back(0 , 5 , 1 );
+  primitives.emplace_back(0 , 1 , 7 );
+  primitives.emplace_back(0 , 7 , 10);
+  primitives.emplace_back(0 , 10, 11);
+
+  primitives.emplace_back(1 , 5 , 9 );
+  primitives.emplace_back(5 , 11, 4 );
+  primitives.emplace_back(11, 1 , 2 );
+  primitives.emplace_back(10, 7 , 6 );
+  primitives.emplace_back(7 , 1 , 8 );
+
+  primitives.emplace_back(3 , 9 , 4 );
+  primitives.emplace_back(3 , 4 , 2 );
+  primitives.emplace_back(3 , 2 , 6 );
+  primitives.emplace_back(3 , 6 , 8 );
+  primitives.emplace_back(3 , 8 , 9 );
+
+  primitives.emplace_back(4 , 9 , 5 );
+  primitives.emplace_back(2 , 4 , 11);
+  primitives.emplace_back(6 , 2 , 10);
+  primitives.emplace_back(8 , 6 , 7 );
+  primitives.emplace_back(9 , 8 , 1 );
+
+  return primitives;
+}
+
+int main(int argc, char **argv) {
+  // Create initial Mesh
+  IndexedMesh mesh;
+  mesh.vertices = create_icosahedron_vertices();
+  mesh.primitives = create_icosahedron_primitives();
+
+  // Create Draco Mesh from initial Mesh
+  std::unique_ptr<draco::Mesh> dracoMesh(new draco::Mesh());
+  dracoMesh->set_num_points(static_cast<uint32_t>(mesh.vertices.size()));
+
+  draco::GeometryAttribute pos_attr;
+  pos_attr.Init(draco::GeometryAttribute::POSITION, nullptr, 3, draco::DT_FLOAT32, false, sizeof(Vec3D), 0);
+  const uint32_t pos_att_id = dracoMesh->AddAttribute(pos_attr, true, static_cast<uint32_t>(mesh.vertices.size()));
+  for (std::size_t i = 0; i < mesh.vertices.size(); ++i) {
+    dracoMesh->attribute(pos_att_id)->SetAttributeValue(
+      draco::AttributeValueIndex(static_cast<uint32_t>(i)),
+      &mesh.vertices[i]
+    );
+  }
+
+  for (const auto &primitive : mesh.primitives) {
+    dracoMesh->AddFace({
+      draco::PointIndex(primitive.i1),
+      draco::PointIndex(primitive.i2),
+      draco::PointIndex(primitive.i3)
+    });
+  }
+
+  std::cout << "Number of faces   : " << dracoMesh->num_faces() << "\n";
+  std::cout << "Number of vertices: " << dracoMesh->num_points() << "\n";
+
+  // Encode mesh with position's quantization of 16 bits and edgebreaker
+  draco::Encoder encoder;
+  encoder.SetAttributeQuantization(draco::GeometryAttribute::POSITION, 16);
+  encoder.SetEncodingMethod(draco::MESH_EDGEBREAKER_ENCODING);
+  draco::EncoderBuffer buffer;
+  encoder.EncodeMeshToBuffer(*dracoMesh, &buffer);
+
+  std::cout << "Initial mesh in " << mesh.size() << " bytes\n";
+  std::cout << "Encoded mesh in " << buffer.size() << " bytes\n";
+
+  return 0;
+}

recipes/draco/config.yml

@@ -0,0 +1,3 @@
+versions:
+  "1.3.5":
+    folder: all