/*
Copyright (C) 2012-2016 Carl Hetherington <cth@carlh.net>
- This program is free software; you can redistribute it and/or modify
+ This file is part of DCP-o-matic.
+
+ DCP-o-matic is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
- This program is distributed in the hope that it will be useful,
+ DCP-o-matic is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
#include "timer.h"
#include "rect.h"
#include "util.h"
-#include "md5_digester.h"
#include "dcpomatic_socket.h"
extern "C" {
#include <libswscale/swscale.h>
);
}
-int
-Image::components () const
-{
- AVPixFmtDescriptor const * d = av_pix_fmt_desc_get(_pixel_format);
- if (!d) {
- throw PixelFormatError ("components()", _pixel_format);
- }
-
- return d->nb_components;
-}
-
/** @return Number of planes */
int
Image::planes () const
void
Image::alpha_blend (shared_ptr<const Image> other, Position<int> position)
{
+ /* We're blending RGBA images; first byte is blue, second byte is green, third byte blue, fourth byte alpha */
DCPOMATIC_ASSERT (other->pixel_format() == AV_PIX_FMT_RGBA);
int const other_bpp = 4;
switch (_pixel_format) {
case AV_PIX_FMT_RGB24:
{
+ /* Going onto RGB24. First byte is red, second green, third blue */
int const this_bpp = 3;
for (int ty = start_ty, oy = start_oy; ty < size().height && oy < other->size().height; ++ty, ++oy) {
uint8_t* tp = data()[0] + ty * stride()[0] + start_tx * this_bpp;
uint8_t* op = other->data()[0] + oy * other->stride()[0];
for (int tx = start_tx, ox = start_ox; tx < size().width && ox < other->size().width; ++tx, ++ox) {
float const alpha = float (op[3]) / 255;
- tp[0] = op[0] * alpha + tp[0] * (1 - alpha);
+ tp[0] = op[2] * alpha + tp[0] * (1 - alpha);
tp[1] = op[1] * alpha + tp[1] * (1 - alpha);
- tp[2] = op[2] * alpha + tp[2] * (1 - alpha);
+ tp[2] = op[0] * alpha + tp[2] * (1 - alpha);
tp += this_bpp;
op += other_bpp;
}
std::swap (_aligned, other._aligned);
+ std::swap (_extra_pixels, other._extra_pixels);
}
/** Destroy a Image */