Cycles: Make all #include statements relative to cycles source directory

The idea is to make include statements more explicit and obvious where the
file is coming from, additionally reducing chance of wrong header being
picked up.

For example, it was not obvious whether bvh.h was refferring to builder
or traversal, whenter node.h is a generic graph node or a shader node
and cases like that.

Surely this might look obvious for the active developers, but after some
time of not touching the code it becomes less obvious where file is coming
from.

This was briefly mentioned in T50824 and seems @brecht is fine with such
explicitness, but need to agree with all active developers before committing
this.

Please note that this patch is lacking changes related on GPU/OpenCL
support. This will be solved if/when we all agree this is a good idea to move
forward.

Reviewers: brecht, lukasstockner97, maiself, nirved, dingto, juicyfruit, swerner

Reviewed By: lukasstockner97, maiself, nirved, dingto

Subscribers: brecht

Differential Revision: https://developer.blender.org/D2586

12 files changed, 102 insertions, 108 deletions

diff --git a/intern/cycles/kernel/osl/CMakeLists.txt b/intern/cycles/kernel/osl/CMakeLists.txt
index 98de40e5a8a..d2eb89e0e0a 100644
--- a/intern/cycles/kernel/osl/CMakeLists.txt
+++ b/intern/cycles/kernel/osl/CMakeLists.txt
@@ -1,12 +1,6 @@
 
 set(INC
-	.
-	..
-	../svm
-	../../graph
-	../../render
-	../../util
-	../../device
+	../..
 )
 
 set(INC_SYS
diff --git a/intern/cycles/kernel/osl/background.cpp b/intern/cycles/kernel/osl/background.cpp
index d835f9be45c..2e73e7a601e 100644
--- a/intern/cycles/kernel/osl/background.cpp
+++ b/intern/cycles/kernel/osl/background.cpp
@@ -34,10 +34,10 @@
 
 #include <OSL/genclosure.h>
 
-#include "osl_closures.h"
+#include "kernel/osl/osl_closures.h"
 
-#include "kernel_compat_cpu.h"
-#include "closure/alloc.h"
+#include "kernel/kernel_compat_cpu.h"
+#include "kernel/closure/alloc.h"
 
 CCL_NAMESPACE_BEGIN
 
diff --git a/intern/cycles/kernel/osl/bsdf_diffuse_ramp.cpp b/intern/cycles/kernel/osl/bsdf_diffuse_ramp.cpp
index bc26f42b559..ea18f2c8c86 100644
--- a/intern/cycles/kernel/osl/bsdf_diffuse_ramp.cpp
+++ b/intern/cycles/kernel/osl/bsdf_diffuse_ramp.cpp
@@ -34,13 +34,13 @@
 
 #include <OSL/genclosure.h>
 
-#include "kernel_compat_cpu.h"
-#include "osl_closures.h"
+#include "kernel/kernel_compat_cpu.h"
+#include "kernel/osl/osl_closures.h"
 
-#include "kernel_types.h"
-#include "kernel_montecarlo.h"
-#include "closure/alloc.h"
-#include "closure/bsdf_diffuse_ramp.h"
+#include "kernel/kernel_types.h"
+#include "kernel/kernel_montecarlo.h"
+#include "kernel/closure/alloc.h"
+#include "kernel/closure/bsdf_diffuse_ramp.h"
 
 CCL_NAMESPACE_BEGIN
 
diff --git a/intern/cycles/kernel/osl/bsdf_phong_ramp.cpp b/intern/cycles/kernel/osl/bsdf_phong_ramp.cpp
index 14c7644936e..a26671eb09e 100644
--- a/intern/cycles/kernel/osl/bsdf_phong_ramp.cpp
+++ b/intern/cycles/kernel/osl/bsdf_phong_ramp.cpp
@@ -34,12 +34,12 @@
 
 #include <OSL/genclosure.h>
 
-#include "kernel_compat_cpu.h"
-#include "osl_closures.h"
+#include "kernel/kernel_compat_cpu.h"
+#include "kernel/osl/osl_closures.h"
 
-#include "kernel_types.h"
-#include "closure/alloc.h"
-#include "closure/bsdf_phong_ramp.h"
+#include "kernel/kernel_types.h"
+#include "kernel/closure/alloc.h"
+#include "kernel/closure/bsdf_phong_ramp.h"
 
 CCL_NAMESPACE_BEGIN
 
diff --git a/intern/cycles/kernel/osl/emissive.cpp b/intern/cycles/kernel/osl/emissive.cpp
index 3f13e08b302..8843a196dad 100644
--- a/intern/cycles/kernel/osl/emissive.cpp
+++ b/intern/cycles/kernel/osl/emissive.cpp
@@ -34,12 +34,12 @@
 
 #include <OSL/genclosure.h>
 
-#include "osl_closures.h"
+#include "kernel/osl/osl_closures.h"
 
-#include "kernel_compat_cpu.h"
-#include "kernel_types.h"
-#include "closure/alloc.h"
-#include "closure/emissive.h"
+#include "kernel/kernel_compat_cpu.h"
+#include "kernel/kernel_types.h"
+#include "kernel/closure/alloc.h"
+#include "kernel/closure/emissive.h"
 
 CCL_NAMESPACE_BEGIN
 
diff --git a/intern/cycles/kernel/osl/osl_bssrdf.cpp b/intern/cycles/kernel/osl/osl_bssrdf.cpp
index d3a69d39597..95beea01d25 100644
--- a/intern/cycles/kernel/osl/osl_bssrdf.cpp
+++ b/intern/cycles/kernel/osl/osl_bssrdf.cpp
@@ -32,15 +32,15 @@
 
 #include <OSL/genclosure.h>
 
-#include "kernel_compat_cpu.h"
-#include "osl_closures.h"
+#include "kernel/kernel_compat_cpu.h"
+#include "kernel/osl/osl_closures.h"
 
-#include "kernel_types.h"
-#include "kernel_montecarlo.h"
+#include "kernel/kernel_types.h"
+#include "kernel/kernel_montecarlo.h"
 
-#include "closure/alloc.h"
-#include "closure/bsdf_diffuse.h"
-#include "closure/bssrdf.h"
+#include "kernel/closure/alloc.h"
+#include "kernel/closure/bsdf_diffuse.h"
+#include "kernel/closure/bssrdf.h"
 
 CCL_NAMESPACE_BEGIN
 
diff --git a/intern/cycles/kernel/osl/osl_closures.cpp b/intern/cycles/kernel/osl/osl_closures.cpp
index fe61587d179..f44714c2150 100644
--- a/intern/cycles/kernel/osl/osl_closures.cpp
+++ b/intern/cycles/kernel/osl/osl_closures.cpp
@@ -33,34 +33,34 @@
 #include <OSL/genclosure.h>
 #include <OSL/oslclosure.h>
 
-#include "osl_closures.h"
-#include "osl_shader.h"
-
-#include "util_debug.h"
-#include "util_math.h"
-#include "util_param.h"
-
-#include "kernel_types.h"
-#include "kernel_compat_cpu.h"
-#include "split/kernel_split_data_types.h"
-#include "kernel_globals.h"
-#include "kernel_montecarlo.h"
-#include "kernel_random.h"
-
-#include "closure/alloc.h"
-#include "closure/bsdf_util.h"
-#include "closure/bsdf_ashikhmin_velvet.h"
-#include "closure/bsdf_diffuse.h"
-#include "closure/bsdf_microfacet.h"
-#include "closure/bsdf_microfacet_multi.h"
-#include "closure/bsdf_oren_nayar.h"
-#include "closure/bsdf_reflection.h"
-#include "closure/bsdf_refraction.h"
-#include "closure/bsdf_transparent.h"
-#include "closure/bsdf_ashikhmin_shirley.h"
-#include "closure/bsdf_toon.h"
-#include "closure/bsdf_hair.h"
-#include "closure/volume.h"
+#include "kernel/osl/osl_closures.h"
+#include "kernel/osl/osl_shader.h"
+
+#include "util/util_debug.h"
+#include "util/util_math.h"
+#include "util/util_param.h"
+
+#include "kernel/kernel_types.h"
+#include "kernel/kernel_compat_cpu.h"
+#include "kernel/split/kernel_split_data_types.h"
+#include "kernel/kernel_globals.h"
+#include "kernel/kernel_montecarlo.h"
+#include "kernel/kernel_random.h"
+
+#include "kernel/closure/alloc.h"
+#include "kernel/closure/bsdf_util.h"
+#include "kernel/closure/bsdf_ashikhmin_velvet.h"
+#include "kernel/closure/bsdf_diffuse.h"
+#include "kernel/closure/bsdf_microfacet.h"
+#include "kernel/closure/bsdf_microfacet_multi.h"
+#include "kernel/closure/bsdf_oren_nayar.h"
+#include "kernel/closure/bsdf_reflection.h"
+#include "kernel/closure/bsdf_refraction.h"
+#include "kernel/closure/bsdf_transparent.h"
+#include "kernel/closure/bsdf_ashikhmin_shirley.h"
+#include "kernel/closure/bsdf_toon.h"
+#include "kernel/closure/bsdf_hair.h"
+#include "kernel/closure/volume.h"
 
 CCL_NAMESPACE_BEGIN
 
diff --git a/intern/cycles/kernel/osl/osl_closures.h b/intern/cycles/kernel/osl/osl_closures.h
index cd7b33703ff..929cf00a7e6 100644
--- a/intern/cycles/kernel/osl/osl_closures.h
+++ b/intern/cycles/kernel/osl/osl_closures.h
@@ -33,8 +33,8 @@
 #ifndef __OSL_CLOSURES_H__
 #define __OSL_CLOSURES_H__
 
-#include "util_types.h"
-#include "kernel_types.h"
+#include "util/util_types.h"
+#include "kernel/kernel_types.h"
 
 #include <OSL/oslclosure.h>
 #include <OSL/oslexec.h>
diff --git a/intern/cycles/kernel/osl/osl_globals.h b/intern/cycles/kernel/osl/osl_globals.h
index 65cb7ecc6b4..02c083a83f8 100644
--- a/intern/cycles/kernel/osl/osl_globals.h
+++ b/intern/cycles/kernel/osl/osl_globals.h
@@ -21,10 +21,10 @@
 
 #include <OSL/oslexec.h>
 
-#include "util_map.h"
-#include "util_param.h"
-#include "util_thread.h"
-#include "util_vector.h"
+#include "util/util_map.h"
+#include "util/util_param.h"
+#include "util/util_thread.h"
+#include "util/util_vector.h"
 
 #ifndef WIN32
 using std::isfinite;
diff --git a/intern/cycles/kernel/osl/osl_services.cpp b/intern/cycles/kernel/osl/osl_services.cpp
index b08353e82d1..b767c60c617 100644
--- a/intern/cycles/kernel/osl/osl_services.cpp
+++ b/intern/cycles/kernel/osl/osl_services.cpp
@@ -25,34 +25,34 @@
 
 #include <string.h>
 
-#include "mesh.h"
-#include "object.h"
-#include "scene.h"
-
-#include "osl_closures.h"
-#include "osl_globals.h"
-#include "osl_services.h"
-#include "osl_shader.h"
-
-#include "util_foreach.h"
-#include "util_logging.h"
-#include "util_string.h"
-
-#include "kernel_compat_cpu.h"
-#include "split/kernel_split_data_types.h"
-#include "kernel_globals.h"
-#include "kernel_random.h"
-#include "kernel_projection.h"
-#include "kernel_differential.h"
-#include "kernel_montecarlo.h"
-#include "kernel_camera.h"
-#include "kernels/cpu/kernel_cpu_image.h"
-#include "geom/geom.h"
-#include "bvh/bvh.h"
-
-#include "kernel_projection.h"
-#include "kernel_accumulate.h"
-#include "kernel_shader.h"
+#include "render/mesh.h"
+#include "render/object.h"
+#include "render/scene.h"
+
+#include "kernel/osl/osl_closures.h"
+#include "kernel/osl/osl_globals.h"
+#include "kernel/osl/osl_services.h"
+#include "kernel/osl/osl_shader.h"
+
+#include "util/util_foreach.h"
+#include "util/util_logging.h"
+#include "util/util_string.h"
+
+#include "kernel/kernel_compat_cpu.h"
+#include "kernel/split/kernel_split_data_types.h"
+#include "kernel/kernel_globals.h"
+#include "kernel/kernel_random.h"
+#include "kernel/kernel_projection.h"
+#include "kernel/kernel_differential.h"
+#include "kernel/kernel_montecarlo.h"
+#include "kernel/kernel_camera.h"
+#include "kernel/kernels/cpu/kernel_cpu_image.h"
+#include "kernel/geom/geom.h"
+#include "kernel/bvh/bvh.h"
+
+#include "kernel/kernel_projection.h"
+#include "kernel/kernel_accumulate.h"
+#include "kernel/kernel_shader.h"
 
 #ifdef WITH_PTEX
 #  include <Ptexture.h>
diff --git a/intern/cycles/kernel/osl/osl_shader.cpp b/intern/cycles/kernel/osl/osl_shader.cpp
index c7e9f57b18a..13b19d86eca 100644
--- a/intern/cycles/kernel/osl/osl_shader.cpp
+++ b/intern/cycles/kernel/osl/osl_shader.cpp
@@ -16,22 +16,22 @@
 
 #include <OSL/oslexec.h>
 
-#include "kernel_compat_cpu.h"
-#include "kernel_montecarlo.h"
-#include "kernel_types.h"
-#include "split/kernel_split_data_types.h"
-#include "kernel_globals.h"
+#include "kernel/kernel_compat_cpu.h"
+#include "kernel/kernel_montecarlo.h"
+#include "kernel/kernel_types.h"
+#include "kernel/split/kernel_split_data_types.h"
+#include "kernel/kernel_globals.h"
 
-#include "geom/geom_object.h"
+#include "kernel/geom/geom_object.h"
 
-#include "osl_closures.h"
-#include "osl_globals.h"
-#include "osl_services.h"
-#include "osl_shader.h"
+#include "kernel/osl/osl_closures.h"
+#include "kernel/osl/osl_globals.h"
+#include "kernel/osl/osl_services.h"
+#include "kernel/osl/osl_shader.h"
 
-#include "util_foreach.h"
+#include "util/util_foreach.h"
 
-#include "attribute.h"
+#include "render/attribute.h"
 
 
 CCL_NAMESPACE_BEGIN
diff --git a/intern/cycles/kernel/osl/osl_shader.h b/intern/cycles/kernel/osl/osl_shader.h
index ad06dd6929d..32121e940b4 100644
--- a/intern/cycles/kernel/osl/osl_shader.h
+++ b/intern/cycles/kernel/osl/osl_shader.h
@@ -29,7 +29,7 @@
  * This means no thread state must be passed along in the kernel itself.
  */
 
-#include "kernel_types.h"
+#include "kernel/kernel_types.h"
 
 CCL_NAMESPACE_BEGIN