From 91f455159808cbfc3b5b953b622f3048f22ee121 Mon Sep 17 00:00:00 2001
From: Stephen Birarda <commit@birarda.com>
Date: Tue, 8 Aug 2017 11:24:16 -0700
Subject: [PATCH] add draco to the oven tool

---
 cmake/externals/draco/CMakeLists.txt | 35 ++++++++++++++++++++++++++++
 cmake/modules/FindDraco.cmake        | 30 ++++++++++++++++++++++++
 tools/oven/CMakeLists.txt            |  5 ++++
 3 files changed, 70 insertions(+)
 create mode 100644 cmake/externals/draco/CMakeLists.txt
 create mode 100644 cmake/modules/FindDraco.cmake

diff --git a/cmake/externals/draco/CMakeLists.txt b/cmake/externals/draco/CMakeLists.txt
new file mode 100644
index 0000000000..8ef1593dc1
--- /dev/null
+++ b/cmake/externals/draco/CMakeLists.txt
@@ -0,0 +1,35 @@
+set(EXTERNAL_NAME draco)
+
+if (ANDROID)
+  set(ANDROID_CMAKE_ARGS "-DCMAKE_TOOLCHAIN_FILE=${CMAKE_TOOLCHAIN_FILE}" "-DANDROID_NATIVE_API_LEVEL=19")
+endif ()
+
+include(ExternalProject)
+ExternalProject_Add(
+  ${EXTERNAL_NAME}
+  URL http://hifi-public.s3.amazonaws.com/dependencies/draco-master-c8b6219.zip
+  URL_MD5 d60ed5fb2e1792445078f931875e3ee1
+  CONFIGURE_COMMAND CMAKE_ARGS  ${ANDROID_CMAKE_ARGS} -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE} -DCMAKE_INSTALL_PREFIX:PATH=<INSTALL_DIR>
+  LOG_DOWNLOAD 1
+  LOG_CONFIGURE 1
+  LOG_BUILD 1
+)
+
+# Hide this external target (for ide users)
+set_target_properties(${EXTERNAL_NAME} PROPERTIES FOLDER "hidden/externals")
+
+ExternalProject_Get_Property(${EXTERNAL_NAME} INSTALL_DIR)
+
+string(TOUPPER ${EXTERNAL_NAME} EXTERNAL_NAME_UPPER)
+set(${EXTERNAL_NAME_UPPER}_INCLUDE_DIRS ${INSTALL_DIR}/include/draco/src CACHE PATH "List of Draco include directories")
+
+if (UNIX)
+  set(LIB_PREFIX "lib")
+  set(LIB_EXT "a")
+elseif (WIN32)
+  set(LIB_EXT "lib")
+endif ()
+
+set(${EXTERNAL_NAME_UPPER}_LIBRARY ${INSTALL_DIR}/lib/${LIB_PREFIX}draco.${LIB_EXT} CACHE FILEPATH "Path to Draco release library")
+set(${EXTERNAL_NAME_UPPER}_ENCODER_LIBRARY ${INSTALL_DIR}/lib/${LIB_PREFIX}dracoenc.${LIB_EXT} CACHE FILEPATH "Path to Draco encoder release library")
+set(${EXTERNAL_NAME_UPPER}_DECODER_LIBRARY ${INSTALL_DIR}/lib/${LIB_PREFIX}dracodec.${LIB_EXT} CACHE FILEPATH "Path to Draco decoder release library")
diff --git a/cmake/modules/FindDraco.cmake b/cmake/modules/FindDraco.cmake
new file mode 100644
index 0000000000..f549d410f9
--- /dev/null
+++ b/cmake/modules/FindDraco.cmake
@@ -0,0 +1,30 @@
+#
+#  FindDraco.cmake
+#
+#  Try to find Draco libraries and include path.
+#  Once done this will define
+#
+#  DRACO_FOUND
+#  DRACO_INCLUDE_DIRS
+#  DRACO_LIBRARY
+#  DRACO_ENCODER_LIBRARY
+#  DRACO_DECODER_LIBRARY
+#
+#  Created on 8/8/2017 by Stephen Birarda
+#  Copyright 2017 High Fidelity, Inc.
+#
+#  Distributed under the Apache License, Version 2.0.
+#  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
+#
+
+include("${MACRO_DIR}/HifiLibrarySearchHints.cmake")
+hifi_library_search_hints("draco")
+
+find_path(DRACO_INCLUDE_DIRS draco/core/draco_types.h PATH_SUFFIXES include/draco/src HINTS ${DRACO_SEARCH_DIRS})
+
+find_library(DRACO_LIBRARY draco PATH_SUFFIXES "lib" HINTS ${DRACO_SEARCH_DIRS})
+find_library(DRACO_ENCODER_LIBRARY draco PATH_SUFFIXES "lib" HINTS ${DRACO_SEARCH_DIRS})
+find_library(DRACO_DECODER_LIBRARY draco PATH_SUFFIXES "lib" HINTS ${DRACO_SEARCH_DIRS})
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(DRACO DEFAULT_MSG DRACO_INCLUDE_DIRS DRACO_LIBRARY DRACO_ENCODER_LIBRARY DRACO_DECODER_LIBRARY)
diff --git a/tools/oven/CMakeLists.txt b/tools/oven/CMakeLists.txt
index 1022c204c5..9d5d6c1aad 100644
--- a/tools/oven/CMakeLists.txt
+++ b/tools/oven/CMakeLists.txt
@@ -6,6 +6,11 @@ link_hifi_libraries(networking shared image gpu ktx fbx baking model)
 
 setup_memory_debugger()
 
+add_dependency_external_projects(draco)
+find_package(Draco REQUIRED)
+target_include_directories(${TARGET_NAME} SYSTEM PRIVATE ${DRACO_INCLUDE_DIRS})
+target_link_libraries(${TARGET_NAME} ${DRACO_LIBRARY} ${DRACO_ENCODER_LIBRARY})
+
 if (WIN32)
   package_libraries_for_deployment()
 endif ()