X-Git-Url: http://git.asbjorn.biz/?p=swftools.git;a=blobdiff_plain;f=lib%2Fgfxfilter.h;h=0b341f78aa0143fef9095604c78d45b8e7a54e39;hp=a5d0a6cefca25c43752e0e2ffbf89d7fe8c45ecf;hb=3116692a2512f2bfae346a1074d1fdfa00ea9d2c;hpb=944d0b42a196bd412c12c6c06fd0e4f301d4a1c7

diff --git a/lib/gfxfilter.h b/lib/gfxfilter.h
index a5d0a6c..0b341f7 100644
--- a/lib/gfxfilter.h
+++ b/lib/gfxfilter.h
@@ -1,16 +1,46 @@
+/* gfxfilter.h
+
+   Part of the swftools package.
+
+   Copyright (c) 2010 Matthias Kramm <kramm@quiss.org> 
+ 
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
+
 #ifndef __gfxfilter_h__
 #define __gfxfilter_h__
 
 #include "gfxdevice.h"
+#include "types.h"
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
+typedef enum {gfxfilter_none, gfxfilter_onepass, gfxfilter_twopass} gfxfiltertype_t;
+
+typedef struct _gfxfilterbase
+{
+    gfxfiltertype_t type;
+} gfxfilterbase_t;
+
 typedef struct _gfxfilter
 {
+    gfxfiltertype_t type;
     int num_passes;
     const char*name;
+
     int pass;
 
     int (*setparameter)(struct _gfxfilter*in, const char*key, const char*value, struct _gfxdevice*out);
@@ -26,11 +56,15 @@ typedef struct _gfxfilter
     void (*drawlink)(struct _gfxfilter*in, gfxline_t*line, const char*action, struct _gfxdevice*out);
     void (*endpage)(struct _gfxfilter*in, struct _gfxdevice*out);
     gfxresult_t* (*finish)(struct _gfxfilter*in, struct _gfxdevice*out);
+
+    void (*dealloc)(struct _gfxfilter*f);
+
     void* internal;
 } gfxfilter_t;
 
 typedef struct _gfxtwopassfilter
 {
+    gfxfiltertype_t type;
     gfxfilter_t pass1;
     gfxfilter_t pass2;
 } gfxtwopassfilter_t;
@@ -38,6 +72,34 @@ typedef struct _gfxtwopassfilter
 gfxdevice_t*gfxfilter_apply(gfxfilter_t*filter, gfxdevice_t*dev);
 gfxdevice_t*gfxtwopassfilter_apply(gfxtwopassfilter_t*filter, gfxdevice_t*dev);
 
+typedef struct _gfxfilterchain {
+    gfxfilterbase_t*filter;
+    struct _gfxfilterchain*next;
+} gfxfilterchain_t;
+
+gfxfilterchain_t* gfxfilterchain_parse(const char*filterexpr);
+gfxdevice_t* gfxfilterchain_apply(gfxfilterchain_t*chain, gfxdevice_t*dev);
+void gfxfilterchain_destroy(gfxfilterchain_t*chain);
+
+#define wrap_filter(dev, name, args...) \
+    {gfxfilter_t f_##name; \
+     gfxfilter_##name##_init(&f_##name, ## args); \
+     dev = gfxfilter_apply(&f_##name, dev); \
+    }
+
+#define wrap_filter2(dev, name, args...) \
+    {gfxtwopassfilter_t f_##name; \
+     gfxtwopassfilter_##name##_init(&f_##name, ## args); \
+     dev = gfxtwopassfilter_apply(&f_##name, dev); \
+    }
+
+/* known filters */
+void gfxfilter_maketransparent_init(gfxfilter_t*f, U8 alpha);
+void gfxtwopassfilter_remove_font_transforms_init(gfxtwopassfilter_t*f);
+void gfxtwopassfilter_one_big_font_init(gfxtwopassfilter_t*f);
+void gfxtwopassfilter_vectors_to_glyphs_init(gfxtwopassfilter_t*f);
+
+
 #ifdef __cplusplus
 }
 #endif