make finding out how to make a transparent image simpler

[imager.git] / imext.c

diff --git a/imext.c b/imext.c
index cc4cd0c8138744564e8733881acb52bb8c6dbbc4..ed5c4169c36867ec57eab87dc835f9d569ae76d2 100644 (file)
--- a/imext.c
+++ b/imext.c
@@ -1,5 +1,6 @@
 #include "imexttypes.h"
 #include "imager.h"
+#include "imio.h"
 
 /*
  DON'T ADD CASTS TO THESE
@@ -101,6 +102,36 @@ im_ext_funcs imager_function_table =
     i_set_image_file_limits,
     i_get_image_file_limits,
     i_int_check_image_file_limits,
+
+    i_flood_fill_border,
+    i_flood_cfill_border,
+
+    /* IMAGER_API_LEVEL 3 functions */
+    i_img_setmask,
+    i_img_getmask,
+    i_img_getchannels,
+    i_img_get_width,
+    i_img_get_height,
+    i_lhead,
+    i_loog,
+
+    /* IMAGER_API_LEVEL 4 functions */
+    i_img_alloc,
+    i_img_init,
+
+    /* IMAGER_API_LEVEL 5 functions */
+    i_img_is_monochrome,
+    i_gsamp_bg,
+    i_gsampf_bg,
+    i_get_file_background,
+    i_get_file_backgroundf,
+    i_utf8_advance,
+    i_render_new,
+    i_render_delete,
+    i_render_color,
+    i_render_fill,
+    i_render_line,
+    i_render_linef
   };
 
 /* in general these functions aren't called by Imager internally, but
@@ -132,11 +163,11 @@ int
 }
 
 /*
-=item i_gpix(im, x, y, color)
+=item i_gpix(im, C<x>, C<y>, C<color>)
 
 =category Drawing
 
-Retrieves the I<color> of the pixel (x,y).
+Retrieves the C<color> of the pixel (x,y).
 
 Returns 0 if the pixel was retrieved, or -1 if not.
 
@@ -149,11 +180,11 @@ int
 }
 
 /*
-=item i_ppixf(im, x, y, fcolor)
+=item i_ppixf(im, C<x>, C<y>, C<fcolor>)
 
 =category Drawing
 
-Sets the pixel at (x,y) to the floating point color I<fcolor>.
+Sets the pixel at (C<x>,C<y>) to the floating point color C<fcolor>.
 
 Returns 0 if the pixel was drawn, or -1 if not.
 
@@ -168,12 +199,12 @@ int
 }
 
 /*
-=item i_gpixf(im, x, y, fcolor)
+=item i_gpixf(im, C<x>, C<y>, C<fcolor>)
 
 =category Drawing
 
 Retrieves the color of the pixel (x,y) as a floating point color into
-I<fcolor>.
+C<fcolor>.
 
 Returns 0 if the pixel was retrieved, or -1 if not.
 
@@ -221,12 +252,12 @@ int
 }
 
 /*
-=item i_plinf(im, l, r, fcolors)
+=item i_plinf(im, C<left>, C<right>, C<fcolors>)
 
 =category Drawing
 
-Sets (r-l) pixels starting from (l,y) using (r-l) floating point
-colors from I<colors>.
+Sets (right-left) pixels starting from (left,y) using (right-left)
+floating point colors from C<fcolors>.
 
 Returns the number of pixels set.
 
@@ -257,19 +288,19 @@ int
 }
 
 /*
-=item i_gsamp(im, l, r, y, samp, chans, chan_count)
+=item i_gsamp(im, left, right, y, samples, channels, channel_count)
 
 =category Drawing
 
-Reads sample values from im for the horizontal line (l, y) to (r-1,y)
-for the channels specified by chans, an array of int with chan_count
-elements.
+Reads sample values from C<im> for the horizontal line (left, y) to
+(right-1,y) for the channels specified by C<channels>, an array of int
+with C<channel_count> elements.
 
-If chans is NULL then the first chan_count channels are retrieved for
+If channels is NULL then the first channels_count channels are retrieved for
 each pixel.
 
-Returns the number of samples read (which should be (r-l) *
-chan_count)
+Returns the number of samples read (which should be (right-left) *
+channel_count)
 
 =cut
 */
@@ -280,19 +311,19 @@ int
 }
 
 /*
-=item i_gsampf(im, l, r, y, samp, chans, chan_count)
+=item i_gsampf(im, left, right, y, samples, channels, channel_count)
 
 =category Drawing
 
-Reads floating point sample values from im for the horizontal line (l,
-y) to (r-1,y) for the channels specified by chans, an array of int
-with chan_count elements.
+Reads floating point sample values from C<im> for the horizontal line
+(left, y) to (right-1,y) for the channels specified by C<channels>, an
+array of int with channel_count elements.
 
-If chans is NULL then the first chan_count channels are retrieved for
-each pixel.
+If C<channels> is NULL then the first C<channel_count> channels are
+retrieved for each pixel.
 
-Returns the number of samples read (which should be (r-l) *
-chan_count)
+Returns the number of samples read (which should be (C<right>-C<left>)
+* C<channel_count>)
 
 =cut
 */
@@ -303,12 +334,12 @@ int
 }
 
 /*
-=item i_gpal(im, x, r, y, indexes)
+=item i_gpal(im, left, right, y, indexes)
 
 =category Drawing
 
-Reads palette indexes for the horizontal line (x, y) to (r-1, y) into
-indexes.
+Reads palette indexes for the horizontal line (left, y) to (right-1,
+y) into C<indexes>.
 
 Returns the number of indexes read.
 
@@ -322,12 +353,12 @@ int
 }
 
 /*
-=item i_ppal(im, x, r, y, indexes)
+=item i_ppal(im, left, right, y, indexes)
 
 =category Drawing
 
-Writes palette indexes for the horizontal line (x, y) to (r-1, y) from
-indexes.
+Writes palette indexes for the horizontal line (left, y) to (right-1,
+y) from C<indexes>.
 
 Returns the number of indexes written.
 
@@ -448,7 +479,7 @@ int
 
 Sets I<count> colors starting from I<index> in the image's palette.
 
-On sucess returns true.
+On success returns true.
 
 On failure returns false.