From 0b0c8c92441aeb0a21aec52de8689e8000495e0e Mon Sep 17 00:00:00 2001
From: Chris Want <cwant@ualberta.ca>
Date: Wed, 22 Nov 2006 15:53:46 +0000
Subject: =Texture Plugins=

Added a callback instance_init() so that any particular instance of a
texture plugin can initialize data. Updated the clouds2 and tile example
plugins to have a (dummy) call back.
---
 source/blender/blenkernel/BKE_plugin_types.h | 1 +
 source/blender/blenkernel/intern/texture.c   | 5 +++++
 source/blender/blenloader/intern/readfile.c  | 5 +++++
 source/blender/blenpluginapi/plugin.h        | 2 ++
 source/blender/makesdna/DNA_texture_types.h  | 1 +
 5 files changed, 14 insertions(+)

(limited to 'source')

diff --git a/source/blender/blenkernel/BKE_plugin_types.h b/source/blender/blenkernel/BKE_plugin_types.h
index 338cfee7291..2b7c6c06832 100644
--- a/source/blender/blenkernel/BKE_plugin_types.h
+++ b/source/blender/blenkernel/BKE_plugin_types.h
@@ -65,6 +65,7 @@ typedef struct _PluginInfo {
 	void (*callback)(int);
 	TexDoit tex_doit;
 	SeqDoit seq_doit;
+	void (*instance_init)(void *);
 } PluginInfo;
 
 #endif
diff --git a/source/blender/blenkernel/intern/texture.c b/source/blender/blenkernel/intern/texture.c
index 3f78ad3a1d6..62ac911bea7 100644
--- a/source/blender/blenkernel/intern/texture.c
+++ b/source/blender/blenkernel/intern/texture.c
@@ -136,6 +136,7 @@ void open_plugin_tex(PluginTex *pit)
 
 				info_func= (int (*)(PluginInfo *))PIL_dynlib_find_symbol(pit->handle, "plugin_getinfo");
 				if (!test_dlerr(pit->name, "plugin_getinfo")) {
+					info->instance_init = NULL;
 
 					info_func(info);
 
@@ -148,6 +149,7 @@ void open_plugin_tex(PluginTex *pit)
 					pit->varstr= info->varstr;
 					pit->result= info->result;
 					pit->cfra= info->cfra;
+					pit->instance_init = info->instance_init;
 					if (info->init) info->init();
 				}
 				MEM_freeN(info);
@@ -191,6 +193,9 @@ PluginTex *add_plugin_tex(char *str)
 			*((int *)(pit->data+a))= (int) varstr->def;
 	}
 
+	if (pit->instance_init)
+		pit->instance_init((void *) pit->data);
+
 	return pit;
 }
 
diff --git a/source/blender/blenloader/intern/readfile.c b/source/blender/blenloader/intern/readfile.c
index 807af79f76b..1a00ff1490c 100644
--- a/source/blender/blenloader/intern/readfile.c
+++ b/source/blender/blenloader/intern/readfile.c
@@ -2255,6 +2255,11 @@ static void direct_link_texture(FileData *fd, Tex *tex)
 	if(tex->plugin) {
 		tex->plugin->handle= 0;
 		open_plugin_tex(tex->plugin);
+		/* initialize data for this instance, if an initialization
+		 * function exists.
+		 */
+		if (tex->plugin->instance_init)
+			tex->plugin->instance_init((void *) tex->plugin->data);
 	}
 	tex->coba= newdataadr(fd, tex->coba);
 	tex->env= newdataadr(fd, tex->env);
diff --git a/source/blender/blenpluginapi/plugin.h b/source/blender/blenpluginapi/plugin.h
index f7ffc7e7c8e..b9048b92878 100644
--- a/source/blender/blenpluginapi/plugin.h
+++ b/source/blender/blenpluginapi/plugin.h
@@ -62,6 +62,8 @@ typedef struct _PluginInfo {
 	void (*callback)(int);
 	TexDoit tex_doit;
 	SeqDoit seq_doit;
+
+	void (*instance_init)(void *);
 } PluginInfo;
 
 int plugin_tex_getversion(void);
diff --git a/source/blender/makesdna/DNA_texture_types.h b/source/blender/makesdna/DNA_texture_types.h
index b93276624d5..01de2196f8c 100644
--- a/source/blender/makesdna/DNA_texture_types.h
+++ b/source/blender/makesdna/DNA_texture_types.h
@@ -89,6 +89,7 @@ typedef struct PluginTex {
 	float data[32];
 
 	int (*doit)(void);
+	void (*instance_init)(void *);
 
 	/* should be void (*)(unsigned short)... patched */	
 	void (*callback)(dna_ushort_fix);
-- 
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