forked from mia/Aegisub
223 lines
6 KiB
C++
223 lines
6 KiB
C++
// Copyright (c) 2007, Rodrigo Braz Monteiro
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// * Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// * Neither the name of the Aegisub Group nor the names of its contributors
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// may be used to endorse or promote products derived from this software
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// without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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//
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// Aegisub Project http://www.aegisub.org/
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//
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// $Id$
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/// @file video_provider_dummy.cpp
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/// @brief Video provider returning a constant frame
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/// @ingroup video_input
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///
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#include "config.h"
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#ifndef AGI_PRE
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#include <wx/tokenzr.h>
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#endif
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#include "colorspace.h"
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#include "video_provider_dummy.h"
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namespace media {
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/// @brief Constructor
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/// @param _fps
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/// @param frames
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/// @param _width
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/// @param _height
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/// @param colour
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/// @param pattern
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///
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void DummyVideoProvider::Create(double _fps, int frames, int _width, int _height, const wxColour &colour, bool pattern) {
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lastFrame = -1;
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framecount = frames;
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fps = _fps;
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width = _width;
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height = _height;
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frame = AegiVideoFrame(width,height);
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unsigned char *dst = frame.data;
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unsigned char r = colour.Red(), g = colour.Green(), b = colour.Blue();
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unsigned char h, s, l, lr, lg, lb; // light variants
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rgb_to_hsl(r, g, b, &h, &s, &l);
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l += 24;
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if (l < 24) l -= 48;
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hsl_to_rgb(h, s, l, &lr, &lg, &lb);
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if (pattern) {
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int ppitch = frame.pitch / frame.GetBpp();
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for (unsigned int y = 0; y < frame.h; ++y) {
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if ((y / 8) & 1) {
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for (int x = 0; x < ppitch; ++x) {
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if ((x / 8) & 1) {
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*dst++ = b;
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*dst++ = g;
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*dst++ = r;
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*dst++ = 0;
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}
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else {
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*dst++ = lb;
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*dst++ = lg;
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*dst++ = lr;
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*dst++ = 0;
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}
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}
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}
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else {
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for (int x = 0; x < ppitch; ++x) {
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if ((x / 8) & 1) {
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*dst++ = lb;
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*dst++ = lg;
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*dst++ = lr;
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*dst++ = 0;
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}
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else {
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*dst++ = b;
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*dst++ = g;
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*dst++ = r;
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*dst++ = 0;
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}
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}
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}
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}
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}
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else {
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for (int i=frame.pitch*frame.h/frame.GetBpp();--i>=0;) {
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*dst++ = b;
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*dst++ = g;
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*dst++ = r;
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*dst++ = 0;
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}
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}
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}
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/// @brief Parsing constructor
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/// @param filename
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///
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DummyVideoProvider::DummyVideoProvider(wxString filename)
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{
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wxString params;
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if (!filename.StartsWith(_T("?dummy:"), ¶ms)) {
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throw agi::FileNotFoundError("Attempted creating dummy video provider with non-dummy filename");
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}
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wxStringTokenizer t(params, _T(":"));
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if (t.CountTokens() < 7) {
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throw VideoOpenError("Too few fields in dummy video parameter list");
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}
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double fps;
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long _frames, _width, _height, red, green, blue;
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bool pattern = false;
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wxString field = t.GetNextToken();
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if (!field.ToDouble(&fps)) {
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throw VideoOpenError("Unable to parse fps field in dummy video parameter list");
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}
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field = t.GetNextToken();
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if (!field.ToLong(&_frames)) {
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throw VideoOpenError("Unable to parse framecount field in dummy video parameter list");
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}
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field = t.GetNextToken();
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if (!field.ToLong(&_width)) {
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throw VideoOpenError("Unable to parse width field in dummy video parameter list");
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}
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field = t.GetNextToken();
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if (!field.ToLong(&_height)) {
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throw VideoOpenError("Unable to parse height field in dummy video parameter list");
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}
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field = t.GetNextToken();
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if (!field.ToLong(&red)) {
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throw VideoOpenError("Unable to parse red colour field in dummy video parameter list");
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}
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field = t.GetNextToken();
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if (!field.ToLong(&green)) {
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throw VideoOpenError("Unable to parse green colour field in dummy video parameter list");
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}
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field = t.GetNextToken();
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if (!field.ToLong(&blue)) {
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throw VideoOpenError("Unable to parse blue colour field in dummy video parameter list");
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}
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field = t.GetNextToken();
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if (field == _T("c")) {
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pattern = true;
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}
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Create(fps, _frames, _width, _height, wxColour(red, green, blue), pattern);
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}
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/// @brief Direct constructor
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/// @param _fps
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/// @param frames
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/// @param _width
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/// @param _height
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/// @param colour
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/// @param pattern
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///
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DummyVideoProvider::DummyVideoProvider(double _fps, int frames, int _width, int _height, const wxColour &colour, bool pattern) {
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Create(_fps, frames, _width, _height, colour, pattern);
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}
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/// @brief Destructor
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///
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DummyVideoProvider::~DummyVideoProvider() {
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frame.Clear();
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}
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/// @brief Construct a fake filename describing the video
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/// @param fps
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/// @param frames
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/// @param _width
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/// @param _height
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/// @param colour
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/// @param pattern
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/// @return
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///
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wxString DummyVideoProvider::MakeFilename(double fps, int frames, int _width, int _height, const wxColour &colour, bool pattern) {
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return wxString::Format(_T("?dummy:%f:%d:%d:%d:%d:%d:%d:%s"), fps, frames, _width, _height, colour.Red(), colour.Green(), colour.Blue(), pattern?_T("c"):_T(""));
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}
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/// @brief Get frame
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/// @param n
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/// @return
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///
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const AegiVideoFrame DummyVideoProvider::GetFrame(int n) {
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lastFrame = n;
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return frame;
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}
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} // namespace media
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