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geometry.cpp
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geometry.cpp
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/*
* Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>
*
* This file is part of CasparCG (www.casparcg.com).
*
* CasparCG 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 3 of the License, or
* (at your option) any later version.
*
* CasparCG 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 CasparCG. If not, see <http://www.gnu.org/licenses/>.
*
* Author: Niklas P Andersson, niklas.p.andersson@svt.se
*/
#include "geometry.h"
#include <common/except.h>
namespace caspar { namespace core {
frame_geometry::coord::coord(double vertex_x, double vertex_y, double texture_x, double texture_y)
: vertex_x(vertex_x)
, vertex_y(vertex_y)
, texture_x(texture_x)
, texture_y(texture_y)
{
}
bool frame_geometry::coord::operator==(const frame_geometry::coord& other) const
{
return vertex_x == other.vertex_x && vertex_y == other.vertex_y && texture_x == other.texture_x &&
texture_y == other.texture_y && texture_r == other.texture_r && texture_q == other.texture_q;
}
struct frame_geometry::impl
{
impl(frame_geometry::geometry_type type, std::vector<coord> data)
: type_(type)
{
if (type == geometry_type::quad && data.size() != 4)
CASPAR_THROW_EXCEPTION(invalid_argument() << msg_info("The number of coordinates needs to be 4"));
data_ = std::move(data);
}
frame_geometry::geometry_type type_;
std::vector<coord> data_;
};
frame_geometry::frame_geometry(geometry_type type, std::vector<coord> data)
: impl_(new impl(type, std::move(data)))
{
}
frame_geometry::geometry_type frame_geometry::type() const { return impl_->type_; }
const std::vector<frame_geometry::coord>& frame_geometry::data() const { return impl_->data_; }
const frame_geometry& frame_geometry::get_default()
{
static std::vector<frame_geometry::coord> data = {
// vertex texture
{0.0, 0.0, 0.0, 0.0}, // upper left
{1.0, 0.0, 1.0, 0.0}, // upper right
{1.0, 1.0, 1.0, 1.0}, // lower right
{0.0, 1.0, 0.0, 1.0} // lower left
};
static const frame_geometry g(frame_geometry::geometry_type::quad, data);
return g;
}
}} // namespace caspar::core