Commit 6eec2a06 authored by Rémi Denis-Courmont's avatar Rémi Denis-Courmont

transform: add transposition and anti-transposition transforms

parent 39ddd4de
......@@ -3,7 +3,7 @@
*****************************************************************************
* Copyright (C) 2000-2006 the VideoLAN team
* Copyright (C) 2010 Laurent Aimar
* $Id$
* Copyright (C) 2012 Rémi Denis-Courmont
*
* Authors: Samuel Hocevar <sam@zoy.org>
* Laurent Aimar <fenrir _AT_ videolan _DOT_ org>
......@@ -45,10 +45,12 @@ static void Close(vlc_object_t *);
#define CFG_PREFIX "transform-"
#define TYPE_TEXT N_("Transform type")
static const char * const type_list[] = { "90", "180", "270", "hflip", "vflip" };
static const char * const type_list[] = { "90", "180", "270",
"hflip", "vflip", "transpose", "antitranspose" };
static const char * const type_list_text[] = { N_("Rotate by 90 degrees"),
N_("Rotate by 180 degrees"), N_("Rotate by 270 degrees"),
N_("Flip horizontally"), N_("Flip vertically") };
N_("Flip horizontally"), N_("Flip vertically"),
N_("Transpose"), N_("Anti-transpose") };
vlc_module_begin()
set_description(N_("Video transformation filter"))
......@@ -80,6 +82,17 @@ static void VFlip(int *sx, int *sy, int w, int h, int dx, int dy)
*sx = dx;
*sy = h - 1 - dy;
}
static void Transpose(int *sx, int *sy, int w, int h, int dx, int dy)
{
VLC_UNUSED( h ); VLC_UNUSED( w );
*sx = dy;
*sy = dx;
}
static void AntiTranspose(int *sx, int *sy, int w, int h, int dx, int dy)
{
*sx = h - 1 - dy;
*sy = w - 1 - dx;
}
static void R90(int *sx, int *sy, int w, int h, int dx, int dy)
{
VLC_UNUSED( h );
......@@ -150,12 +163,14 @@ static void Plane32_##f(plane_t *restrict dst, const plane_t *restrict src) \
PLANAR(HFlip)
PLANAR(VFlip)
PLANAR(Transpose)
PLANAR(AntiTranspose)
PLANAR(R90)
PLANAR(R180)
PLANAR(R270)
typedef struct {
char name[8];
char name[16];
bool is_rotated;
convert_t convert;
convert_t iconvert;
......@@ -173,6 +188,8 @@ static const transform_description_t descriptions[] = {
DESC("270", true, R270, R90),
DESC("hflip", false, HFlip, HFlip),
DESC("vflip", false, VFlip, VFlip),
DESC("transpose", true, Transpose, Transpose),
DESC("antitranspose", true, AntiTranspose, AntiTranspose),
};
static const size_t n_transforms =
......
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