libcamera: Move ipa includes to the same level as libcamera

The ipa includes are located in include/libcamera/ipa/. This gives an
incorrect impression that they are a sub-part of the rest of the
libcamera API, while they are the API towards the IPA the same way that
include/libcamera/ contains the API towards applications. To clarify
this, move them to include/ipa/.

The IPA headers are however still part of libcamera, so installing them
to ${prefix}/include/ipa/ would make little sense. To fix this, move the
application facing API to ${prefix}/include/libcamera/libcamera/ when
installed, and the IPA to ${prefix}/include/libcamera/ipa/. When major
versions of libcamera will be released, they could then be installed
side by side in ${prefix}/include/libcamera-${version}/.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>

src/ipa/ipa_dummy.cpp

@@ -7,8 +7,8 @@
 
 #include <iostream>
 
-#include <libcamera/ipa/ipa_interface.h>
-#include <libcamera/ipa/ipa_module_info.h>
+#include <ipa/ipa_interface.h>
+#include <ipa/ipa_module_info.h>
 
 namespace libcamera {
 

src/ipa/ipa_dummy_isolate.cpp

@@ -8,8 +8,8 @@
 
 #include <iostream>
 
-#include <libcamera/ipa/ipa_interface.h>
-#include <libcamera/ipa/ipa_module_info.h>
+#include <ipa/ipa_interface.h>
+#include <ipa/ipa_module_info.h>
 
 namespace libcamera {
 

src/libcamera/include/ipa_manager.h

@@ -9,8 +9,8 @@
 
 #include <vector>
 
-#include <libcamera/ipa/ipa_interface.h>
-#include <libcamera/ipa/ipa_module_info.h>
+#include <ipa/ipa_interface.h>
+#include <ipa/ipa_module_info.h>
 
 #include "ipa_module.h"
 #include "pipeline_handler.h"

src/libcamera/include/ipa_module.h

@@ -10,8 +10,8 @@
 #include <memory>
 #include <string>
 
-#include <libcamera/ipa/ipa_interface.h>
-#include <libcamera/ipa/ipa_module_info.h>
+#include <ipa/ipa_interface.h>
+#include <ipa/ipa_module_info.h>
 
 #include "pipeline_handler.h"
 

src/libcamera/include/ipa_proxy.h

@@ -11,7 +11,7 @@
 #include <string>
 #include <vector>
 
-#include <libcamera/ipa/ipa_interface.h>
+#include <ipa/ipa_interface.h>
 
 #include "ipa_module.h"
 #include "utils.h"

src/libcamera/ipa_interface.cpp

@@ -5,7 +5,7 @@
  * ipa_interface.cpp - Image Processing Algorithm interface
  */
 
-#include <libcamera/ipa/ipa_interface.h>
+#include <ipa/ipa_interface.h>
 
 /**
  * \file ipa_interface.h

src/libcamera/meson.build

@@ -120,7 +120,7 @@ libcamera = shared_library('camera',
                            include_directories : includes,
                            dependencies : libcamera_deps)
 
-libcamera_dep = declare_dependency(sources : [libcamera_api, libcamera_h],
+libcamera_dep = declare_dependency(sources : [libcamera_api, libcamera_ipa_api, libcamera_h],
                                    include_directories : libcamera_includes,
                                    link_with : libcamera)
 

src/libcamera/pipeline/vimc.cpp

@@ -12,10 +12,10 @@
 
 #include <linux/media-bus-format.h>
 
+#include <ipa/ipa_interface.h>
+#include <ipa/ipa_module_info.h>
 #include <libcamera/camera.h>
 #include <libcamera/controls.h>
-#include <libcamera/ipa/ipa_interface.h>
-#include <libcamera/ipa/ipa_module_info.h>
 #include <libcamera/request.h>
 #include <libcamera/stream.h>
 

src/libcamera/proxy/ipa_proxy_linux.cpp

@@ -7,8 +7,8 @@
 
 #include <vector>
 
-#include <libcamera/ipa/ipa_interface.h>
-#include <libcamera/ipa/ipa_module_info.h>
+#include <ipa/ipa_interface.h>
+#include <ipa/ipa_module_info.h>
 
 #include "ipa_module.h"
 #include "ipa_proxy.h"

src/libcamera/proxy/worker/ipa_proxy_linux_worker.cpp

@@ -9,8 +9,8 @@
 #include <sys/types.h>
 #include <unistd.h>
 
+#include <ipa/ipa_interface.h>
 #include <libcamera/event_dispatcher.h>
-#include <libcamera/ipa/ipa_interface.h>
 #include <libcamera/logging.h>
 
 #include "ipa_module.h"