[opencv] Rework

Split off contrib, ipp, webp, openexr, tiff, png, tiff, jpeg, jasper, eigen into features.
Prevent downloads during the build

1 files changed, 97 insertions, 0 deletions

diff --git a/ports/opencv/0004-use-find-package-required.patch b/ports/opencv/0004-use-find-package-required.patch
new file mode 100644
index 000000000..6d2fa5688
--- /dev/null
+++ b/ports/opencv/0004-use-find-package-required.patch
@@ -0,0 +1,97 @@
+From 7e02db97d43cb9aa331da0dbfce8c372c19ad32b Mon Sep 17 00:00:00 2001
+From: Robert Schumacher <roschuma@microsoft.com>
+Date: Wed, 21 Feb 2018 17:20:49 -0800
+Subject: [PATCH 4/5] use-find-package-required
+
+---
+ cmake/OpenCVFindLibsGrfmt.cmake | 18 +++++++++---------
+ 1 file changed, 9 insertions(+), 9 deletions(-)
+
+diff --git a/cmake/OpenCVFindLibsGrfmt.cmake b/cmake/OpenCVFindLibsGrfmt.cmake
+index 0ae58c8..5832d56 100644
+--- a/cmake/OpenCVFindLibsGrfmt.cmake
++++ b/cmake/OpenCVFindLibsGrfmt.cmake
+@@ -6,7 +6,7 @@
+ if(BUILD_ZLIB)
+   ocv_clear_vars(ZLIB_FOUND)
+ else()
+-  find_package(ZLIB "${MIN_VER_ZLIB}")
++  find_package(ZLIB "${MIN_VER_ZLIB}" REQUIRED)
+   if(ZLIB_FOUND AND ANDROID)
+     if(ZLIB_LIBRARIES STREQUAL "${ANDROID_SYSROOT}/usr/lib/libz.so" OR
+         ZLIB_LIBRARIES STREQUAL "${ANDROID_SYSROOT}/usr/lib64/libz.so")
+@@ -31,7 +31,7 @@ if(WITH_JPEG)
+   if(BUILD_JPEG)
+     ocv_clear_vars(JPEG_FOUND)
+   else()
+-    include(FindJPEG)
++    find_package(JPEG REQUIRED)
+   endif()
+ 
+   if(NOT JPEG_FOUND)
+@@ -52,7 +52,7 @@ if(WITH_TIFF)
+   if(BUILD_TIFF)
+     ocv_clear_vars(TIFF_FOUND)
+   else()
+-    include(FindTIFF)
++    find_package(TIFF REQUIRED)
+     if(TIFF_FOUND)
+       ocv_parse_header("${TIFF_INCLUDE_DIR}/tiff.h" TIFF_VERSION_LINES TIFF_VERSION_CLASSIC TIFF_VERSION_BIG TIFF_VERSION TIFF_BIGTIFF_VERSION)
+     endif()
+@@ -95,7 +95,7 @@ if(WITH_WEBP)
+   if(BUILD_WEBP)
+     ocv_clear_vars(WEBP_FOUND WEBP_LIBRARY WEBP_LIBRARIES WEBP_INCLUDE_DIR)
+   else()
+-    include(cmake/OpenCVFindWebP.cmake)
++    find_package(WebP REQUIRED)
+     if(WEBP_FOUND)
+       set(HAVE_WEBP 1)
+     endif()
+@@ -136,7 +136,7 @@ if(WITH_JASPER)
+   if(BUILD_JASPER)
+     ocv_clear_vars(JASPER_FOUND)
+   else()
+-    include(FindJasper)
++    find_package(Jasper REQUIRED)
+   endif()
+ 
+   if(NOT JASPER_FOUND)
+@@ -160,7 +160,7 @@ if(WITH_PNG)
+   if(BUILD_PNG)
+     ocv_clear_vars(PNG_FOUND)
+   else()
+-    include(FindPNG)
++    find_package(PNG REQUIRED)
+     if(PNG_FOUND)
+       include(CheckIncludeFile)
+       check_include_file("${PNG_PNG_INCLUDE_DIR}/libpng/png.h" HAVE_LIBPNG_PNG_H)
+@@ -192,7 +192,7 @@ if(WITH_OPENEXR)
+   if(BUILD_OPENEXR)
+     ocv_clear_vars(OPENEXR_FOUND)
+   else()
+-    include("${OpenCV_SOURCE_DIR}/cmake/OpenCVFindOpenEXR.cmake")
++    find_package(OpenEXR REQUIRED)
+   endif()
+ 
+   if(NOT OPENEXR_FOUND)
+@@ -208,7 +208,7 @@ endif()
+ 
+ # --- GDAL (optional) ---
+ if(WITH_GDAL)
+-    find_package(GDAL QUIET)
++    find_package(GDAL REQUIRED)
+ 
+     if(NOT GDAL_FOUND)
+         set(HAVE_GDAL NO)
+@@ -220,7 +220,7 @@ if(WITH_GDAL)
+ endif()
+ 
+ if (WITH_GDCM)
+-  find_package(GDCM QUIET)
++  find_package(GDCM REQUIRED)
+   if(NOT GDCM_FOUND)
+     set(HAVE_GDCM NO)
+     ocv_clear_vars(GDCM_VERSION GDCM_LIBRARIES)
+-- 
+2.15.1.windows.2
+