133 lines
5.1 KiB
C++
133 lines
5.1 KiB
C++
// Copyright (c) 2007, Rodrigo Braz Monteiro
|
|
// All rights reserved.
|
|
//
|
|
// Redistribution and use in source and binary forms, with or without
|
|
// modification, are permitted provided that the following conditions are met:
|
|
//
|
|
// * Redistributions of source code must retain the above copyright notice,
|
|
// this list of conditions and the following disclaimer.
|
|
// * Redistributions in binary form must reproduce the above copyright notice,
|
|
// this list of conditions and the following disclaimer in the documentation
|
|
// and/or other materials provided with the distribution.
|
|
// * Neither the name of the Aegisub Group nor the names of its contributors
|
|
// may be used to endorse or promote products derived from this software
|
|
// without specific prior written permission.
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
|
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
// POSSIBILITY OF SUCH DAMAGE.
|
|
//
|
|
// Aegisub Project http://www.aegisub.org/
|
|
|
|
/// @file video_provider_dummy.cpp
|
|
/// @brief Video provider returning a constant frame
|
|
/// @ingroup video_input
|
|
///
|
|
|
|
#include "video_provider_dummy.h"
|
|
|
|
#include "colorspace.h"
|
|
#include "video_frame.h"
|
|
|
|
#include <libaegisub/color.h>
|
|
#include <libaegisub/make_unique.h>
|
|
#include <libaegisub/split.h>
|
|
#include <libaegisub/util.h>
|
|
|
|
#include <boost/algorithm/string/predicate.hpp>
|
|
#include <boost/filesystem/path.hpp>
|
|
#include <libaegisub/format.h>
|
|
#if BOOST_VERSION >= 106900
|
|
#include <boost/gil.hpp>
|
|
#else
|
|
#include <boost/gil/gil_all.hpp>
|
|
#endif
|
|
|
|
DummyVideoProvider::DummyVideoProvider(double fps, int frames, int width, int height, agi::Color colour, bool pattern)
|
|
: framecount(frames)
|
|
, fps(fps)
|
|
, width(width)
|
|
, height(height)
|
|
{
|
|
data.resize(width * height * 4);
|
|
|
|
auto red = colour.r;
|
|
auto green = colour.g;
|
|
auto blue = colour.b;
|
|
|
|
using namespace boost::gil;
|
|
auto dst = interleaved_view(width, height, (bgra8_pixel_t*)data.data(), 4 * width);
|
|
|
|
bgra8_pixel_t colors[2] = {
|
|
bgra8_pixel_t(blue, green, red, 0),
|
|
bgra8_pixel_t(blue, green, red, 0)
|
|
};
|
|
|
|
if (pattern) {
|
|
// Generate light version
|
|
unsigned char h, s, l;
|
|
rgb_to_hsl(red, blue, green, &h, &s, &l);
|
|
l += 24;
|
|
if (l < 24) l -= 48;
|
|
hsl_to_rgb(h, s, l, &red, &blue, &green);
|
|
colors[1] = bgra8_pixel_t(blue, green, red, 0);
|
|
|
|
// Divide into a 8x8 grid and use light colours when row % 2 != col % 2
|
|
auto out = dst.begin();
|
|
for (int y = 0; y < height; ++y)
|
|
for (int x = 0; x < width; ++x)
|
|
*out++ = colors[((y / 8) & 1) != ((x / 8) & 1)];
|
|
}
|
|
else {
|
|
fill_pixels(dst, colors[0]);
|
|
}
|
|
}
|
|
|
|
std::string DummyVideoProvider::MakeFilename(double fps, int frames, int width, int height, agi::Color colour, bool pattern) {
|
|
return agi::format("?dummy:%f:%d:%d:%d:%d:%d:%d:%s", fps, frames, width, height, (int)colour.r, (int)colour.g, (int)colour.b, (pattern ? "c" : ""));
|
|
}
|
|
|
|
void DummyVideoProvider::GetFrame(int, VideoFrame &frame) {
|
|
frame.data = data;
|
|
frame.width = width;
|
|
frame.height = height;
|
|
frame.pitch = width * 4;
|
|
frame.flipped = false;
|
|
}
|
|
|
|
namespace agi { class BackgroundRunner; }
|
|
std::unique_ptr<VideoProvider> CreateDummyVideoProvider(agi::fs::path const& filename, std::string const&, agi::BackgroundRunner *) {
|
|
if (!boost::starts_with(filename.string(), "?dummy"))
|
|
return {};
|
|
|
|
std::vector<std::string> toks;
|
|
auto const& fields = filename.string().substr(7);
|
|
agi::Split(toks, fields, ':');
|
|
if (toks.size() != 8)
|
|
throw VideoOpenError("Too few fields in dummy video parameter list");
|
|
|
|
size_t i = 0;
|
|
double fps;
|
|
int frames, width, height, red, green, blue;
|
|
|
|
using agi::util::try_parse;
|
|
if (!try_parse(toks[i++], &fps)) throw VideoOpenError("Unable to parse fps field in dummy video parameter list");
|
|
if (!try_parse(toks[i++], &frames)) throw VideoOpenError("Unable to parse framecount field in dummy video parameter list");
|
|
if (!try_parse(toks[i++], &width)) throw VideoOpenError("Unable to parse width field in dummy video parameter list");
|
|
if (!try_parse(toks[i++], &height)) throw VideoOpenError("Unable to parse height field in dummy video parameter list");
|
|
if (!try_parse(toks[i++], &red)) throw VideoOpenError("Unable to parse red colour field in dummy video parameter list");
|
|
if (!try_parse(toks[i++], &green)) throw VideoOpenError("Unable to parse green colour field in dummy video parameter list");
|
|
if (!try_parse(toks[i++], &blue)) throw VideoOpenError("Unable to parse blue colour field in dummy video parameter list");
|
|
|
|
bool pattern = toks[i] == "c";
|
|
|
|
return agi::make_unique<DummyVideoProvider>(fps, frames, width, height, agi::Color(red, green, blue), pattern);
|
|
}
|