Windows: Move building of blendthumb into the blender codebase.

Previously this was done in the deps builder due to the fact we needed
both 32 and 64 bit versions of this dll and CMAKE does not support that
in a single build folder. Now that 32 bit support has been dropped, this
can be safely moved into the codebase.

Reviewers: brecht

Differential Revision: https://developer.blender.org/D5633

build_files/build_environment/cmake/blendthumb.cmake

@@ -1,67 +0,0 @@
-# ***** BEGIN GPL LICENSE BLOCK *****
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software Foundation,
-# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
-#
-# ***** END GPL LICENSE BLOCK *****
-
-if(BUILD_MODE STREQUAL Release)
-  if(WIN32)
-    set(THUMB_DIR ${CMAKE_CURRENT_SOURCE_DIR}/../../release/windows/blendthumb)
-
-    ExternalProject_Add(external_zlib_32
-      URL ${ZLIB_URI}
-      CMAKE_GENERATOR ${GENERATOR_32}
-      URL_HASH MD5=${ZLIB_HASH}
-      DOWNLOAD_DIR ${DOWNLOAD_DIR}
-      PREFIX ${BUILD_DIR}/zlib32
-      CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/zlib32 ${DEFAULT_CMAKE_FLAGS}
-      INSTALL_DIR ${LIBDIR}/zlib32
-    )
-
-    ExternalProject_Add(external_zlib_64
-      URL ${ZLIB_URI}
-      CMAKE_GENERATOR ${GENERATOR_64}
-      URL_HASH MD5=${ZLIB_HASH}
-      DOWNLOAD_DIR ${DOWNLOAD_DIR}
-      PREFIX ${BUILD_DIR}/zlib64
-      CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/zlib64 ${DEFAULT_CMAKE_FLAGS}
-      INSTALL_DIR ${LIBDIR}/zlib64
-    )
-
-    ExternalProject_Add(external_blendthumb_32
-      CMAKE_GENERATOR ${GENERATOR_32}
-      SOURCE_DIR ${THUMB_DIR}
-      PREFIX ${BUILD_DIR}/blendthumb32
-      CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/blendThumb32 ${DEFAULT_CMAKE_FLAGS} -DZLIB_INCLUDE=${LIBDIR}/zlib32/include -DZLIB_LIBS=${LIBDIR}/zlib32/lib/zlibstatic.lib
-      INSTALL_DIR ${LIBDIR}/blendthumb32
-    )
-    add_dependencies(
-      external_blendthumb_32
-      external_zlib_32
-    )
-
-    ExternalProject_Add(external_blendthumb_64
-      CMAKE_GENERATOR ${GENERATOR_64}
-      SOURCE_DIR ${THUMB_DIR}
-      PREFIX ${BUILD_DIR}/blendthumb64
-      CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/blendThumb64 ${DEFAULT_CMAKE_FLAGS} -DZLIB_INCLUDE=${LIBDIR}/zlib64/include -DZLIB_LIBS=${LIBDIR}/zlib64/lib/zlibstatic.lib
-      INSTALL_DIR ${LIBDIR}/blendthumb64
-    )
-    add_dependencies(
-      external_blendthumb_64
-      external_zlib_64
-    )
-  endif()
-endif()

build_files/build_environment/cmake/harvest.cmake

@@ -51,9 +51,6 @@ if(BUILD_MODE STREQUAL Release)
         # tiff
         ${CMAKE_COMMAND} -E copy ${LIBDIR}/tiff/lib/tiff.lib ${HARVEST_TARGET}/tiff/lib/libtiff.lib &&
         ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/tiff/include/ ${HARVEST_TARGET}/tiff/include/ &&
-        # BlendThumb
-        ${CMAKE_COMMAND} -E copy ${LIBDIR}/BlendThumb64/bin/blendthumb.dll ${HARVEST_TARGET}/ThumbHandler/lib/BlendThumb64.dll &&
-        ${CMAKE_COMMAND} -E copy ${LIBDIR}/BlendThumb32/bin/blendthumb.dll ${HARVEST_TARGET}/ThumbHandler/lib/BlendThumb.dll &&
         # hidapi
         ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/hidapi/ ${HARVEST_TARGET}/hidapi/ &&
         # webp, straight up copy

source/blender/CMakeLists.txt

@@ -153,3 +153,7 @@ endif()
 if(WITH_ALEMBIC)
   add_subdirectory(alembic)
 endif()
+
+if(WIN32)
+  add_subdirectory(blendthumb)
+endif()

source/blender/blendthumb/CMakeLists.txt

@@ -19,13 +19,8 @@
 # ***** END GPL LICENSE BLOCK *****
 
 #-----------------------------------------------------------------------------
-cmake_minimum_required(VERSION 2.8)
-project(BlendThumb)
+include_directories(${ZLIB_INCLUDE_DIRS})
 
-#Bring the headers, such as Student.h into the project
-include_directories(${ZLIB_INCLUDE})
-
-#Can manually add the sources using the set command as follows:
 set(SRC
   src/BlenderThumb.cpp
   src/BlendThumb.def
@@ -34,5 +29,4 @@ set(SRC
 )
 
 add_library(BlendThumb SHARED ${SRC})
-target_link_libraries(BlendThumb ${ZLIB_LIBS})
-install (TARGETS BlendThumb DESTINATION bin)
+target_link_libraries(BlendThumb ${ZLIB_LIBRARIES})

source/blender/blenlib/intern/winstuff.c

@@ -172,17 +172,7 @@ void RegisterBlendExtension(void)
 
   BLI_getInstallationDir(InstallDir);
   GetSystemDirectory(SysDir, FILE_MAXDIR);
-#  ifdef _WIN64
-  ThumbHandlerDLL = "BlendThumb64.dll";
-#  else
-  IsWow64Process(GetCurrentProcess(), &IsWOW64);
-  if (IsWOW64 == true) {
-    ThumbHandlerDLL = "BlendThumb64.dll";
-  }
-  else {
-    ThumbHandlerDLL = "BlendThumb.dll";
-  }
-#  endif
+  ThumbHandlerDLL = "BlendThumb.dll";
   snprintf(
       RegCmd, MAX_PATH * 2, "%s\\regsvr32 /s \"%s\\%s\"", SysDir, InstallDir, ThumbHandlerDLL);
   system(RegCmd);

source/creator/CMakeLists.txt

@@ -820,18 +820,6 @@ elseif(WIN32)
     )
   endif()
 
-  if(NOT CMAKE_CL_64)
-    install(
-      FILES ${LIBDIR}/thumbhandler/lib/BlendThumb.dll
-      DESTINATION "."
-    )
-  endif()
-
-  install( # x86 builds can run on x64 Windows, so this is required at all times
-    FILES ${LIBDIR}/thumbhandler/lib/BlendThumb64.dll
-    DESTINATION "."
-  )
-
   install(
     FILES
       ${CMAKE_SOURCE_DIR}/release/windows/batch/blender_debug_gpu.cmd
@@ -1037,6 +1025,16 @@ if (WIN32)
   set_target_properties(blender PROPERTIES VS_GLOBAL_VcpkgEnabled "false")
 endif()
 
+# -----------------------------------------------------------------------------
+# Thumbnailer
+if(WIN32)
+  install(
+    TARGETS BlendThumb
+    COMPONENT Blender
+    DESTINATION "."
+  )
+endif()
+
 # -----------------------------------------------------------------------------
 # Setup launcher