From c0b3e3daebd36a483e659d32e6517f2fb9b0e277 Mon Sep 17 00:00:00 2001
From: Brecht Van Lommel <brechtvanlommel@gmail.com>
Date: Fri, 26 Oct 2018 19:26:06 +0200
Subject: Fix T57393: Cycles OSL bevel and AO not working after OSL upgrade.

---
 intern/cycles/kernel/osl/osl_services.cpp | 28 ++++++++++++++++++++++++++--
 intern/cycles/kernel/osl/osl_services.h   |  7 ++++++-
 2 files changed, 32 insertions(+), 3 deletions(-)

(limited to 'intern/cycles/kernel/osl')

diff --git a/intern/cycles/kernel/osl/osl_services.cpp b/intern/cycles/kernel/osl/osl_services.cpp
index 7902381440b..81348f5594d 100644
--- a/intern/cycles/kernel/osl/osl_services.cpp
+++ b/intern/cycles/kernel/osl/osl_services.cpp
@@ -884,6 +884,23 @@ bool OSLRenderServices::has_userdata(ustring name, TypeDesc type, OSL::ShaderGlo
 	return false; /* never called by OSL */
 }
 
+TextureSystem::TextureHandle *OSLRenderServices::get_texture_handle(ustring filename)
+{
+	if (filename.length() && filename[0] == '@') {
+		/* Dummy, we don't use texture handles for builtin textures but need
+		 * to tell the OSL runtime optimizer that this is a valid texture. */
+		return NULL;
+	}
+	else {
+		return texturesys()->get_texture_handle(filename);
+	}
+}
+
+bool OSLRenderServices::good(TextureSystem::TextureHandle *texture_handle)
+{
+	return texturesys()->good(texture_handle);
+}
+
 bool OSLRenderServices::texture(ustring filename,
                                 TextureHandle *texture_handle,
                                 TexturePerthread *texture_thread_info,
@@ -894,7 +911,8 @@ bool OSLRenderServices::texture(ustring filename,
                                 int nchannels,
                                 float *result,
                                 float *dresultds,
-                                float *dresultdt)
+                                float *dresultdt,
+                                ustring *errormessage)
 {
 	OSL::TextureSystem *ts = osl_ts;
 	ShaderData *sd = (ShaderData *)(sg->renderstate);
@@ -1156,7 +1174,13 @@ bool OSLRenderServices::get_texture_info(OSL::ShaderGlobals *sg, ustring filenam
                                          TypeDesc datatype, void *data)
 {
 	OSL::TextureSystem *ts = osl_ts;
-	return ts->get_texture_info(filename, subimage, dataname, datatype, data);
+	if (filename.length() && filename[0] == '@') {
+		/* Special builtin textures. */
+		return false;
+	}
+	else {
+		return ts->get_texture_info(filename, subimage, dataname, datatype, data);
+	}
 }
 
 int OSLRenderServices::pointcloud_search(OSL::ShaderGlobals *sg, ustring filename, const OSL::Vec3 &center,
diff --git a/intern/cycles/kernel/osl/osl_services.h b/intern/cycles/kernel/osl/osl_services.h
index 50044746fd1..5dcaa4d7445 100644
--- a/intern/cycles/kernel/osl/osl_services.h
+++ b/intern/cycles/kernel/osl/osl_services.h
@@ -93,6 +93,10 @@ public:
 	bool getmessage(OSL::ShaderGlobals *sg, ustring source, ustring name,
 	                TypeDesc type, void *val, bool derivatives);
 
+	TextureSystem::TextureHandle *get_texture_handle(ustring filename);
+
+	bool good(TextureSystem::TextureHandle *texture_handle);
+
 	bool texture(ustring filename,
 	             TextureSystem::TextureHandle *texture_handle,
 	             TexturePerthread *texture_thread_info,
@@ -103,7 +107,8 @@ public:
 	             int nchannels,
 	             float *result,
 	             float *dresultds,
-	             float *dresultdt);
+	             float *dresultdt,
+	             ustring *errormessage);
 
 	bool texture3d(ustring filename,
 	               TextureHandle *texture_handle,
-- 
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