added comment about image alpha

[swftools.git] / lib / gfxdevice.h

diff --git a/lib/gfxdevice.h b/lib/gfxdevice.h
index e338834..f852814 100644 (file)
--- a/lib/gfxdevice.h
+++ b/lib/gfxdevice.h
@@ -32,6 +32,7 @@ typedef struct _gfxglyph
 
 typedef struct _gfxfont
 {
+    char*id;
     int num_glyphs;
     int max_unicode;
     gfxglyph_t*glyphs;
@@ -54,6 +55,8 @@ typedef struct _gfxmatrix
 
 typedef struct _gfximage
 {
+    /* if the data contains an alpha layer (a != 255), the
+       r,g,b values will have to be premultiplied */
     gfxcolor_t*data;
     int width;
     int height;
@@ -82,27 +85,40 @@ typedef struct _gfxbbox
     gfxcoord_t xmin, ymin, xmax, ymax;
 } gfxbbox_t;
 
+typedef struct _gfxresult
+{
+    void (*write)(struct _gfxresult*gfx, int filedesc);
+    int (*save)(struct _gfxresult*gfx, char*filename);
+    void* (*get)(struct _gfxresult*gfx, char*name);
+    void (*destroy)(struct _gfxresult*gfx);
+
+    void*internal;
+} gfxresult_t;
+
 typedef struct _gfxdevice
 {
+    char* name; // gfx device name
+
     int (*setparameter)(struct _gfxdevice*dev, const char*key, const char*value);
 
-    void (*startpage)(struct _gfxdevice*dev, int xmin, int ymin, int xmax, int ymax); /*xmin/ymin?*/
+    void (*startpage)(struct _gfxdevice*dev, int width, int height);
 
     void (*startclip)(struct _gfxdevice*dev, gfxline_t*line);
     void (*endclip)(struct _gfxdevice*dev);
     void (*stroke)(struct _gfxdevice*dev, gfxline_t*line, gfxcoord_t width, gfxcolor_t*color, gfx_capType cap_style, gfx_joinType joint_style, gfxcoord_t miterLimit);
     void (*fill)(struct _gfxdevice*dev, gfxline_t*line, gfxcolor_t*color);
-    void (*fillbitmap)(struct _gfxdevice*dev, gfxline_t*line, gfximage_t*img, gfxmatrix_t*matrix, gfxcxform_t*cxform); //cxform? tiling?
+    void (*fillbitmap)(struct _gfxdevice*dev, gfxline_t*line, gfximage_t*img, gfxmatrix_t*imgcoord2devcoord, gfxcxform_t*cxform); //cxform? tiling?
     void (*fillgradient)(struct _gfxdevice*dev, gfxline_t*line, gfxgradient_t*gradient, gfxgradienttype_t type, gfxmatrix_t*matrix); //?
 
-    void (*addfont)(struct _gfxdevice*dev, char*fontid, gfxfont_t*font);
-    void (*drawchar)(struct _gfxdevice*dev, char*fontid, int glyph, gfxcolor_t*color, gfxmatrix_t*matrix);
+    /* deprecated */ void (*addfont)(struct _gfxdevice*dev, gfxfont_t*font);
+
+    void (*drawchar)(struct _gfxdevice*dev, gfxfont_t*fontid, int glyph, gfxcolor_t*color, gfxmatrix_t*matrix);
 
-    void (*drawlink)(struct _gfxdevice*dev, int x1, int y1, int x2, int y2, char*action);
+    void (*drawlink)(struct _gfxdevice*dev, gfxline_t*line, char*action);
     
-    void (*endpage)(struct _gfxdevice*dev); //?
+    void (*endpage)(struct _gfxdevice*dev);
     
-    void* (*finish)(struct _gfxdevice*dev);
+    gfxresult_t* (*finish)(struct _gfxdevice*dev);
 
     void* internal;
 } gfxdevice_t;