seed random from ruby interface

[swftools.git] / lib / gfxfilter.h

diff --git a/lib/gfxfilter.h b/lib/gfxfilter.h
index 07c85c8..0b341f7 100644 (file)
--- a/lib/gfxfilter.h
+++ b/lib/gfxfilter.h
@@ -22,15 +22,25 @@
 #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);
@@ -46,11 +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;
@@ -58,6 +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