make sure flipping paletted images is covered

[imager.git] / imager.h

diff --git a/imager.h b/imager.h
index 24fd57ecc9fef2bbb3f61a3d950f0b9781372851..e44311cc2c53be977e7a107ad028f18508acc5e5 100644 (file)
--- a/imager.h
+++ b/imager.h
@@ -155,6 +155,7 @@ i_new_fill_hatchf(const i_fcolor *fg, const i_fcolor *bg, int combine, int hatch
                   const unsigned char *cust_hatch, int dx, int dy);
 extern i_fill_t *
 i_new_fill_image(i_img *im, const double *matrix, int xoff, int yoff, int combine);
+extern i_fill_t *i_new_fill_opacity(i_fill_t *, double alpha_mult);
 extern void i_fill_destroy(i_fill_t *fill);
 
 float i_gpix_pch(i_img *im,int x,int y,int ch);
@@ -205,7 +206,7 @@ undef_int i_flood_cfill_border(i_img *im, int seedx, int seedy, i_fill_t *fill,
 /* image processing functions */
 
 int i_gaussian    (i_img *im, double stdev);
-void i_conv        (i_img *im,const float *coeff,int len);
+int i_conv        (i_img *im,const double *coeff,int len);
 void i_unsharp_mask(i_img *im, double stddev, double scale);
 
 /* colour manipulation */
@@ -213,6 +214,7 @@ extern i_img *i_convert(i_img *src, const float *coeff, int outchan, int inchan)
 extern void i_map(i_img *im, unsigned char (*maps)[256], unsigned int mask);
 
 float i_img_diff   (i_img *im1,i_img *im2);
+double i_img_diffd(i_img *im1,i_img *im2);
 
 /* font routines */
 
@@ -599,4 +601,12 @@ extern void
 i_adapt_fcolors_bg(int dest_channels, int src_channels, i_fcolor *colors, 
                   size_t count, i_fcolor const *bg);
 
+extern int
+i_gsamp_bg(i_img *im, int l, int r, int y, i_sample_t *samples, 
+          int out_channels, i_color const *bg);
+
+extern int
+i_gsampf_bg(i_img *im, int l, int r, int y, i_fsample_t *samples, 
+          int out_channels, i_fcolor const *bg);
+
 #endif