diff mbox

[v9,4/4] package/opencv: add opengl support

Message ID 1436106540-3466-5-git-send-email-s.martin49@gmail.com
State Superseded
Headers show

Commit Message

Samuel Martin July 5, 2015, 2:29 p.m. UTC 
In OpenCV, OpenGL is only used by highgui module.

OpenGL support is done using extensions from 3rd party framework: either
Qt5OpenGL with Qt5 (with GL support only, not GLES); or gtkglext (which
is not available in Buildroot) with gtk2

So, make OpenGL knob a sub-option of the Qt5 support option.

Signed-off-by: Samuel Martin <s.martin49@gmail.com>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>

---
changes v8->v9:
- rebase

changes v7->v8:
- fix dependencies (Yann)
- update a/r/t tags

changes v6->v7:
- rework comment as sugessted by Yann
- move opengl option close to the gui toolkit choice

changes v5->v6:
- update comments (Yann)

changes v4->v5:
- new patch
---
 package/opencv/Config.in | 22 +++++++++++++++++++++-
 package/opencv/opencv.mk |  7 +++++++
 2 files changed, 28 insertions(+), 1 deletion(-)
diff mbox

Patch

diff --git a/package/opencv/Config.in b/package/opencv/Config.in
index 73c035e..a49fa2c 100644
--- a/package/opencv/Config.in
+++ b/package/opencv/Config.in
@@ -52,9 +52,10 @@  config BR2_PACKAGE_OPENCV_LIB_HIGHGUI
 	  Include opencv_highgui (high-level gui and media i/o) module into the
 	  OpenCV build.
 
+if BR2_PACKAGE_OPENCV_LIB_HIGHGUI
+
 choice
 	prompt "gui toolkit"
-	depends on BR2_PACKAGE_OPENCV_LIB_HIGHGUI
 	help
 	  GUI toolkit to be used by the opencv_highgui module.
 
@@ -110,6 +111,25 @@  comment "qt5 support needs qt5"
 
 endchoice
 
+config BR2_PACKAGE_OPENCV_WITH_OPENGL
+	bool "opengl support"
+	# OpenGL support done using Qt5OpenGL, so depends on WITH_QT5
+	depends on BR2_PACKAGE_OPENCV_WITH_QT5
+	# OpenGL support requires Qt5OpenGL with GL support, not GLES
+	depends on BR2_PACKAGE_QT5_GL_AVAILABLE
+	depends on BR2_PACKAGE_HAS_LIBGL
+	select BR2_PACKAGE_QT5BASE_OPENGL
+	help
+	  Enable OpenGL for UI.
+
+comment "opengl support needs an OpenGL provider"
+	depends on BR2_PACKAGE_OPENCV_WITH_QT5
+	depends on !BR2_PACKAGE_QT5_GL_AVAILABLE || \
+		!BR2_PACKAGE_HAS_LIBGL
+
+endif # BR2_PACKAGE_OPENCV_LIB_HIGHGUI
+
+
 config BR2_PACKAGE_OPENCV_LIB_IMGCODECS
 	bool "imgcodecs"
 	select BR2_PACKAGE_OPENCV_LIB_IMGPROC
diff --git a/package/opencv/opencv.mk b/package/opencv/opencv.mk
index c788aeb..bb1bcd8 100644
--- a/package/opencv/opencv.mk
+++ b/package/opencv/opencv.mk
@@ -264,6 +264,13 @@  else
 OPENCV_CONF_OPTS += -DWITH_JPEG=OFF
 endif
 
+ifeq ($(BR2_PACKAGE_OPENCV_WITH_OPENGL),y)
+OPENCV_CONF_OPTS += -DWITH_OPENGL=ON
+OPENCV_DEPENDENCIES += libgl
+else
+OPENCV_CONF_OPTS += -DWITH_OPENGL=OFF
+endif
+
 OPENCV_CONF_OPTS += -DWITH_OPENMP=$(if $(BR2_GCC_ENABLE_OPENMP),ON,OFF)
 
 ifeq ($(BR2_PACKAGE_OPENCV_WITH_PNG),y)