init_mfdb() is now able to handle bitmaps with less than 8 bits per pixel.

(needed for monochrom glyph rendering) 

svn path=/trunk/netsurf/; revision=12038

1 files changed, 25 insertions, 2 deletions

diff --git a/atari/plot/plotter.c b/atari/plot/plotter.c
index 62fb10918..d9f46e8a8 100755
--- a/atari/plot/plotter.c
+++ b/atari/plot/plotter.c
@@ -682,7 +682,29 @@ short rgb_to_666_index(unsigned char r, unsigned char g, unsigned char b)
 	return( tval[2]*36+tval[1]*6+tval[0] );

 }

 

-/* Shared (static in object oriented slang) plotter functions: */

+

+int init_mfdb(int bpp, int w, int h, bool stand, MFDB * out )

+{

+	int dststride;

+	dststride = MFDB_STRIDE( w );

+	if( bpp > 0 ) { 

+		out->fd_addr = malloc( ((dststride >> 3) * h) * bpp );

+		if( out->fd_addr == NULL ){

+			return( 0 );

+		}

+		out->fd_stand = stand;

+		out->fd_nplanes = (short)bpp;

+		out->fd_r1 = out->fd_r2 = out->fd_r3 = 0;

+	} else {

+		memset( out, 0, sizeof(MFDB) );

+	}

+	out->fd_w = dststride;

+	out->fd_h = h;

+	out->fd_wdwidth = dststride >> 4;

+	return( 1 );

+}

+

+

 int plotter_get_clip( GEM_PLOTTER self, struct rect * out )

 {

 	out->x0 = self->clipping.x0;

@@ -692,6 +714,7 @@ int plotter_get_clip( GEM_PLOTTER self, struct rect * out )
 	return( 1 );

 }

 

+

 int plotter_std_clip(GEM_PLOTTER self, const struct rect * clip)

 {

 	self->clipping.x0 = clip->x0;

@@ -701,7 +724,7 @@ int plotter_std_clip(GEM_PLOTTER self, const struct rect * clip)
 	return ( 1 );

 }

 

-/* this converts framebuffer clipping to vdi clipping and sets it */

+

 void plotter_vdi_clip( GEM_PLOTTER self, bool set)

 {

 	return;