Change the order of the update func to make it more compatible with the

2000-01-05  Jonathan Blandford  <jrb@redhat.com>

	* gdk-pixbuf/gdk-pixbuf-io.h: Change the order of the update func
	to make it more compatible with the rest of GTK.  Added animation
	framework for progressive loading.

	* gdk-pixbuf/io-bmp.c (image_begin_load): Modified to handle new
	system.
	* gdk-pixbuf/io-ico.c (image_begin_load): ditto
	* gdk-pixbuf/io-png.c (image_begin_load): ditto
	* gdk-pixbuf/io-ras.c (image_begin_load): ditto
	* gdk-pixbuf/io-jpeg.c (image_begin_load): ditto
	* gdk-pixbuf/io-pnm.c (image_begin_load): ditto
	* gdk-pixbuf/io-tiff.c (image_begin_load): ditto
	* gdk-pixbuf/io-gif.c (image_begin_load): ditto

11 files changed, 113 insertions, 49 deletions

diff --git a/gdk-pixbuf/ChangeLog b/gdk-pixbuf/ChangeLog
index 0e92c68a7..6a109b6bf 100644
--- a/gdk-pixbuf/ChangeLog
+++ b/gdk-pixbuf/ChangeLog
@@ -1,3 +1,19 @@
+2000-01-05  Jonathan Blandford  <jrb@redhat.com>
+
+	* gdk-pixbuf/gdk-pixbuf-io.h: Change the order of the update func
+	to make it more compatible with the rest of GTK.  Added animation
+	framework for progressive loading.
+ 
+	* gdk-pixbuf/io-bmp.c (image_begin_load): Modified to handle new
+	system.  
+	* gdk-pixbuf/io-ico.c (image_begin_load): ditto
+	* gdk-pixbuf/io-png.c (image_begin_load): ditto
+	* gdk-pixbuf/io-ras.c (image_begin_load): ditto
+	* gdk-pixbuf/io-jpeg.c (image_begin_load): ditto
+	* gdk-pixbuf/io-pnm.c (image_begin_load): ditto
+	* gdk-pixbuf/io-tiff.c (image_begin_load): ditto
+	* gdk-pixbuf/io-gif.c (image_begin_load): ditto
+
 2000-01-05  Owen Taylor  <otaylor@redhat.com>
 
 	* gdk-pixbuf/pixops/README: Added a README with a TODO
diff --git a/gdk-pixbuf/gdk-pixbuf-io.h b/gdk-pixbuf/gdk-pixbuf-io.h
index 966768f1a..e6ba541c0 100644
--- a/gdk-pixbuf/gdk-pixbuf-io.h
+++ b/gdk-pixbuf/gdk-pixbuf-io.h
@@ -1,4 +1,5 @@
-/* GdkPixbuf library - Io handling
+/* GdkPixbuf library - Io handling.  This is an internal header for gdk-pixbuf.
+ * You should never use it unless you are doing developement for gdkpixbuf itself.
  *
  * Copyright (C) 1999 The Free Software Foundation
  *
@@ -38,9 +39,16 @@ extern "C" {
 
 
 typedef void (* ModulePreparedNotifyFunc) (GdkPixbuf *pixbuf, gpointer user_data);
-typedef void (* ModuleUpdatedNotifyFunc) (GdkPixbuf *pixbuf, gpointer user_data,
+typedef void (* ModuleUpdatedNotifyFunc) (GdkPixbuf *pixbuf,
 					  guint x, guint y,
-					  guint width, guint height);
+					  guint width, guint height,
+					  gpointer user_data);
+/* Needed only for animated images. */
+typedef void (* ModuleFrameDoneNotifyFunc) (GdkPixbuf *pixbuf,
+					    gint frame,
+					    gpointer user_data);
+typedef void (* ModuleAnimationDoneNotifyFunc) (GdkPixbuf *pixbuf,
+						gpointer user_data);
 
 typedef struct _GdkPixbufModule GdkPixbufModule;
 struct _GdkPixbufModule {
@@ -54,6 +62,8 @@ struct _GdkPixbufModule {
 
         gpointer (* begin_load) (ModulePreparedNotifyFunc prepare_func,
 				 ModuleUpdatedNotifyFunc update_func,
+				 ModuleFrameDoneNotifyFunc frame_done_func,
+				 ModuleAnimationDoneNotifyFunc anim_done_func,
 				 gpointer user_data);
         void (* stop_load) (gpointer context);
         gboolean (* load_increment) (gpointer context, const guchar *buf, guint size);
diff --git a/gdk-pixbuf/gdk-pixbuf-loader.c b/gdk-pixbuf/gdk-pixbuf-loader.c
index 3d2243662..cd1b91418 100644
--- a/gdk-pixbuf/gdk-pixbuf-loader.c
+++ b/gdk-pixbuf/gdk-pixbuf-loader.c
@@ -222,7 +222,7 @@ gdk_pixbuf_loader_prepare (GdkPixbuf *pixbuf, gpointer loader)
 }
 
 static void
-gdk_pixbuf_loader_update (GdkPixbuf *pixbuf, gpointer loader, guint x, guint y, guint width, guint height)
+gdk_pixbuf_loader_update (GdkPixbuf *pixbuf, guint x, guint y, guint width, guint height, gpointer loader)
 {
 	GdkPixbufLoaderPrivate *priv = NULL;
 
@@ -276,7 +276,7 @@ gdk_pixbuf_loader_load_module(GdkPixbufLoader *loader)
 		return 0;
 	}
 
-	priv->context = (*priv->image_module->begin_load) (gdk_pixbuf_loader_prepare, gdk_pixbuf_loader_update, loader);
+	priv->context = (*priv->image_module->begin_load) (gdk_pixbuf_loader_prepare, gdk_pixbuf_loader_update, NULL, NULL, loader);
 
 	if (priv->context == NULL) {
 		g_warning("Failed to begin progressive load");
diff --git a/gdk-pixbuf/io-bmp.c b/gdk-pixbuf/io-bmp.c
index ebce8d7b7..65d65f1be 100644
--- a/gdk-pixbuf/io-bmp.c
+++ b/gdk-pixbuf/io-bmp.c
@@ -173,7 +173,10 @@ struct bmp_progressive_state {
 
 gpointer
 image_begin_load(ModulePreparedNotifyFunc prepared_func,
-		 ModuleUpdatedNotifyFunc updated_func, gpointer user_data);
+		 ModuleUpdatedNotifyFunc updated_func,
+		 ModuleFrameDoneNotifyFunc frame_done_func,
+		 ModuleAnimationDoneNotifyFunc anim_done_func,
+		 gpointer user_data);
 void image_stop_load(gpointer data);
 gboolean image_load_increment(gpointer data, guchar * buf, guint size);
 
@@ -189,7 +192,7 @@ GdkPixbuf *image_load(FILE * f)
 
 	GdkPixbuf *pb;
 
-	State = image_begin_load(NULL, NULL, NULL);
+	State = image_begin_load(NULL, NULL, NULL, NULL, NULL);
 	membuf = g_malloc(4096);
 
 	g_assert(membuf != NULL);
@@ -303,7 +306,10 @@ static void DecodeHeader(unsigned char *BFH, unsigned char *BIH,
 
 gpointer
 image_begin_load(ModulePreparedNotifyFunc prepared_func,
-		 ModuleUpdatedNotifyFunc updated_func, gpointer user_data)
+		 ModuleUpdatedNotifyFunc updated_func,
+		 ModuleFrameDoneNotifyFunc frame_done_func,
+		 ModuleAnimationDoneNotifyFunc anim_done_func,
+		 gpointer user_data)
 {
 	struct bmp_progressive_state *context;
 
@@ -529,11 +535,11 @@ static void OneLine(struct bmp_progressive_state *context)
 
 	if (context->updated_func != NULL) {
 		(*context->updated_func) (context->pixbuf,
-					  context->user_data,
 					  0,
 					  context->Lines,
 					  context->Header.width,
-					  context->Header.height);
+					  context->Header.height,
+					  context->user_data);
 
 	}
 }
diff --git a/gdk-pixbuf/io-gif.c b/gdk-pixbuf/io-gif.c
index 467df0682..13a66cfba 100644
--- a/gdk-pixbuf/io-gif.c
+++ b/gdk-pixbuf/io-gif.c
@@ -786,31 +786,31 @@ gif_get_lzw (GifContext *context)
 		if (lower_bound <= upper_bound && first_pass == context->draw_pass) {
 			(* context->update_func)
 				(context->pixbuf,
-				 context->user_data,
 				 0, lower_bound,
 				 gdk_pixbuf_get_width (context->pixbuf),
-				 upper_bound - lower_bound);
+				 upper_bound - lower_bound,
+				 context->user_data);
 		} else {
 			if (lower_bound <= upper_bound) {
 				(* context->update_func)
 					(context->pixbuf,
-					 context->user_data,
 					 0, 0,
 					 gdk_pixbuf_get_width (context->pixbuf),
-					 gdk_pixbuf_get_height (context->pixbuf));
+					 gdk_pixbuf_get_height (context->pixbuf),
+					 context->user_data);
 			} else {
 				(* context->update_func)
 					(context->pixbuf,
-					 context->user_data,
 					 0, 0,
 					 gdk_pixbuf_get_width (context->pixbuf),
-					 upper_bound);
+					 upper_bound,
+					 context->user_data);
 				(* context->update_func)
 					(context->pixbuf,
-					 context->user_data,
 					 0, lower_bound,
 					 gdk_pixbuf_get_width (context->pixbuf),
-					 gdk_pixbuf_get_height (context->pixbuf));
+					 gdk_pixbuf_get_height (context->pixbuf),
+					 context->user_data);
 			}
 		}
 	}
@@ -1087,6 +1087,8 @@ image_load (FILE *file)
 gpointer
 image_begin_load (ModulePreparedNotifyFunc prepare_func,
 		  ModuleUpdatedNotifyFunc update_func,
+		  ModuleFrameDoneNotifyFunc frame_done_func,
+		  ModuleAnimationDoneNotifyFunc anim_done_func,
 		  gpointer user_data)
 {
 	GifContext *context;
diff --git a/gdk-pixbuf/io-ico.c b/gdk-pixbuf/io-ico.c
index 052c74a9c..22d1769ee 100644
--- a/gdk-pixbuf/io-ico.c
+++ b/gdk-pixbuf/io-ico.c
@@ -154,7 +154,10 @@ struct ico_progressive_state {
 
 gpointer
 image_begin_load(ModulePreparedNotifyFunc prepared_func,
-		 ModuleUpdatedNotifyFunc updated_func, gpointer user_data);
+		 ModuleUpdatedNotifyFunc updated_func,
+		 ModuleFrameDoneNotifyFunc frame_done_func,
+		 ModuleAnimationDoneNotifyFunc anim_done_func,
+		 gpointer user_data);
 void image_stop_load(gpointer data);
 gboolean image_load_increment(gpointer data, guchar * buf, guint size);
 
@@ -170,7 +173,7 @@ GdkPixbuf *image_load(FILE * f)
 
 	GdkPixbuf *pb;
 
-	State = image_begin_load(NULL, NULL, NULL);
+	State = image_begin_load(NULL, NULL, NULL, NULL, NULL);
 	membuf = g_malloc(4096);
 
 	g_assert(membuf != NULL);
@@ -363,7 +366,10 @@ static void DecodeHeader(guchar *Data, gint Bytes,
 
 gpointer
 image_begin_load(ModulePreparedNotifyFunc prepared_func,
-		 ModuleUpdatedNotifyFunc updated_func, gpointer user_data)
+		 ModuleUpdatedNotifyFunc updated_func,
+		 ModuleFrameDoneNotifyFunc frame_done_func,
+		 ModuleAnimationDoneNotifyFunc anim_done_func,
+		 gpointer user_data)
 {
 	struct ico_progressive_state *context;
 
@@ -609,11 +615,11 @@ static void OneLine(struct ico_progressive_state *context)
 
 	if (context->updated_func != NULL) {
 		(*context->updated_func) (context->pixbuf,
-					  context->user_data,
 					  0,
 					  context->Lines,
 					  context->Header.width,
-					  context->Header.height);
+					  context->Header.height,
+					  context->user_data);
 
 	}
 }
diff --git a/gdk-pixbuf/io-jpeg.c b/gdk-pixbuf/io-jpeg.c
index 68660d4c7..4cea124e0 100644
--- a/gdk-pixbuf/io-jpeg.c
+++ b/gdk-pixbuf/io-jpeg.c
@@ -89,7 +89,10 @@ typedef struct {
 
 GdkPixbuf *image_load (FILE *f);
 gpointer image_begin_load (ModulePreparedNotifyFunc func, 
-			   ModuleUpdatedNotifyFunc func2, gpointer user_data);
+			   ModuleUpdatedNotifyFunc func2,
+			   ModuleFrameDoneNotifyFunc func3,
+			   ModuleAnimationDoneNotifyFunc func4,
+			   gpointer user_data);
 void image_stop_load (gpointer context);
 gboolean image_load_increment(gpointer context, guchar *buf, guint size);
 
@@ -274,6 +277,8 @@ skip_input_data (j_decompress_ptr cinfo, long num_bytes)
 gpointer
 image_begin_load (ModulePreparedNotifyFunc prepared_func, 
 		  ModuleUpdatedNotifyFunc  updated_func,
+		  ModuleFrameDoneNotifyFunc frame_func,
+		  ModuleAnimationDoneNotifyFunc anim_done_func,
 		  gpointer user_data)
 {
 	JpegProgContext *context;
@@ -508,11 +513,11 @@ image_load_increment (gpointer data, guchar *buf, guint size)
 
 				/* send updated signal */
 				(* context->updated_func) (context->pixbuf,
-						 context->user_data,
-						 0, 
-						 cinfo->output_scanline-1,
-						 cinfo->image_width, 
-						 nlines);
+							   0, 
+							   cinfo->output_scanline-1,
+							   cinfo->image_width, 
+							   nlines,
+							   context->user_data);
 
 #undef DEBUG_JPEG_PROGRESSIVE
 #ifdef DEBUG_JPEG_PROGRESSIVE
diff --git a/gdk-pixbuf/io-png.c b/gdk-pixbuf/io-png.c
index 75e456144..84a2a0acb 100644
--- a/gdk-pixbuf/io-png.c
+++ b/gdk-pixbuf/io-png.c
@@ -276,6 +276,8 @@ struct _LoadContext {
 gpointer
 image_begin_load (ModulePreparedNotifyFunc prepare_func,
 		  ModuleUpdatedNotifyFunc update_func,
+		  ModuleFrameDoneNotifyFunc frame_done_func,
+		  ModuleAnimationDoneNotifyFunc anim_done_func,
 		  gpointer user_data)
 {
         LoadContext* lc;
@@ -367,34 +369,38 @@ image_load_increment(gpointer context, guchar *buf, guint size)
                         
                         if (pass_diff == 0) {
                                 /* start and end row were in the same pass */
-                                (lc->update_func)(lc->pixbuf, lc->notify_user_data, 0,
+                                (lc->update_func)(lc->pixbuf, 0,
                                                   lc->first_row_seen_in_chunk,
                                                   lc->pixbuf->art_pixbuf->width,
                                                   (lc->last_row_seen_in_chunk -
-                                                   lc->first_row_seen_in_chunk) + 1);
+                                                   lc->first_row_seen_in_chunk) + 1,
+						  lc->notify_user_data);
                         } else if (pass_diff == 1) {
                                 /* We have from the first row seen to
                                    the end of the image (max row
                                    seen), then from the top of the
                                    image to the last row seen */
                                 /* first row to end */
-                                (lc->update_func)(lc->pixbuf, lc->notify_user_data, 0,
+                                (lc->update_func)(lc->pixbuf, 0,
                                                   lc->first_row_seen_in_chunk,
                                                   lc->pixbuf->art_pixbuf->width,
                                                   (lc->max_row_seen_in_chunk -
-                                                   lc->first_row_seen_in_chunk) + 1);
+                                                   lc->first_row_seen_in_chunk) + 1,
+						  lc->notify_user_data);
                                 /* top to last row */
-                                (lc->update_func)(lc->pixbuf, lc->notify_user_data,
+                                (lc->update_func)(lc->pixbuf,
                                                   0, 0, 
                                                   lc->pixbuf->art_pixbuf->width,
-                                                  lc->last_row_seen_in_chunk + 1);
+                                                  lc->last_row_seen_in_chunk + 1,
+						  lc->notify_user_data);
                         } else {
                                 /* We made at least one entire pass, so update the
                                    whole image */
-                                (lc->update_func)(lc->pixbuf, lc->notify_user_data,
+                                (lc->update_func)(lc->pixbuf,
                                                   0, 0, 
                                                   lc->pixbuf->art_pixbuf->width,
-                                                  lc->max_row_seen_in_chunk + 1);
+                                                  lc->max_row_seen_in_chunk + 1,
+						  lc->notify_user_data);
                         }
                 }
                 
diff --git a/gdk-pixbuf/io-pnm.c b/gdk-pixbuf/io-pnm.c
index e1cdd5f5d..6d61db91b 100644
--- a/gdk-pixbuf/io-pnm.c
+++ b/gdk-pixbuf/io-pnm.c
@@ -77,7 +77,10 @@ typedef struct {
 
 GdkPixbuf *image_load (FILE *f);
 gpointer image_begin_load (ModulePreparedNotifyFunc func, 
-			   ModuleUpdatedNotifyFunc func2, gpointer user_data);
+			   ModuleUpdatedNotifyFunc func2,
+			   ModuleFrameDoneNotifyFunc frame_done_func,
+			   ModuleAnimationDoneNotifyFunc anim_done_func,
+			   gpointer user_data);
 void image_stop_load (gpointer context);
 gboolean image_load_increment(gpointer context, guchar *buf, guint size);
 
@@ -686,6 +689,8 @@ image_load (FILE *f)
 gpointer
 image_begin_load (ModulePreparedNotifyFunc prepared_func, 
 		  ModuleUpdatedNotifyFunc  updated_func,
+		  ModuleFrameDoneNotifyFunc frame_done_func,
+		  ModuleAnimationDoneNotifyFunc anim_done_func,
 		  gpointer user_data)
 {
 	PnmLoaderContext *context;
@@ -836,11 +841,11 @@ image_load_increment (gpointer data, guchar *buf, guint size)
 
 				/* send updated signal */
 				(* context->updated_func) (context->pixbuf,
-						 context->user_data,
-						 0, 
-						 context->output_row-1,
-						 context->width, 
-						 1);
+							   0, 
+							   context->output_row-1,
+							   context->width, 
+							   1,
+							   context->user_data);
 			}
 		}
 
diff --git a/gdk-pixbuf/io-ras.c b/gdk-pixbuf/io-ras.c
index e0b2e4158..17a45942d 100644
--- a/gdk-pixbuf/io-ras.c
+++ b/gdk-pixbuf/io-ras.c
@@ -94,7 +94,10 @@ struct ras_progressive_state {
 
 gpointer
 image_begin_load(ModulePreparedNotifyFunc prepared_func,
-		 ModuleUpdatedNotifyFunc updated_func, gpointer user_data);
+		 ModuleUpdatedNotifyFunc updated_func,
+		 ModuleFrameDoneNotifyFunc frame_done_func,
+		 ModuleAnimationDoneNotifyFunc anim_done_func,
+		 gpointer user_data);
 void image_stop_load(gpointer data);
 gboolean image_load_increment(gpointer data, guchar * buf, guint size);
 
@@ -109,7 +112,7 @@ GdkPixbuf *image_load(FILE * f)
 	
 	GdkPixbuf *pb;
 	
-	State = image_begin_load(NULL, NULL, NULL);
+	State = image_begin_load(NULL, NULL, NULL, NULL, NULL);
 	
 	membuf = g_malloc(4096);
 	
@@ -206,7 +209,10 @@ static void RAS2State(struct rasterfile *RAS,
 
 gpointer
 image_begin_load(ModulePreparedNotifyFunc prepared_func,
-		 ModuleUpdatedNotifyFunc updated_func, gpointer user_data)
+		 ModuleUpdatedNotifyFunc updated_func,
+		 ModuleFrameDoneNotifyFunc frame_done_func,
+		 ModuleAnimationDoneNotifyFunc anim_done_func,
+		 gpointer user_data)
 {
 	struct ras_progressive_state *context;
 
@@ -364,11 +370,11 @@ static void OneLine(struct ras_progressive_state *context)
 
 	if (context->updated_func != NULL) {
 		(*context->updated_func) (context->pixbuf,
-					  context->user_data,
 					  0,
 					  context->Lines,
 					  context->Header.width,
-					  context->Header.height);
+					  context->Header.height,
+					  context->user_data);
 
 	}
 }
diff --git a/gdk-pixbuf/io-tiff.c b/gdk-pixbuf/io-tiff.c
index 208a1b724..155a03577 100644
--- a/gdk-pixbuf/io-tiff.c
+++ b/gdk-pixbuf/io-tiff.c
@@ -111,7 +111,7 @@ image_load_real (FILE *f, TiffData *context)
 
 	if (context) {
 		gdk_pixbuf_unref (pixbuf);
-		(* context->update_func) (pixbuf, context->user_data, 0, 0, w, h);
+		(* context->update_func) (pixbuf, 0, 0, w, h, context->user_data);
 	}
 
 	return pixbuf;
@@ -139,6 +139,8 @@ image_load (FILE *f)
 gpointer
 image_begin_load (ModulePreparedNotifyFunc prepare_func,
 		  ModuleUpdatedNotifyFunc update_func,
+		  ModuleFrameDoneNotifyFunc frame_done_func,
+		  ModuleAnimationDoneNotifyFunc anim_done_func,
 		  gpointer user_data)
 {
 	TiffData *context;