Aegisub/aegisub/video_provider_dummy.cpp

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// 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
//
// Website: http://aegisub.cellosoft.com
// Contact: mailto:zeratul@cellosoft.com
//
///////////
// Headers
#include "video_provider_dummy.h"
#include "colorspace.h"
#include <wx/tokenzr.h>
///////////
// Factory
// Shouldn't be needed
/*class DummyVideoProviderFactory : public VideoProviderFactory {
public:
VideoProvider *CreateProvider(wxString video,double fps=0.0) { return new DummyVideoProvider(video,fps); }
DummyVideoProviderFactory() : VideoProviderFactory(_T("dummy")) {}
} registerDummyVideo; */
///////////////
// Constructor
void DummyVideoProvider::Create(double _fps, int frames, int _width, int _height, const wxColour &colour, bool pattern) {
lastFrame = -1;
framecount = frames;
fps = _fps;
width = _width;
height = _height;
frame = AegiVideoFrame(width,height,FORMAT_RGB32);
unsigned char *dst = frame.data[0];
unsigned char r = colour.Red(), g = colour.Green(), b = colour.Blue();
unsigned char h, s, l, lr, lg, lb; // light variants
rgb_to_hsl(r, g, b, &h, &s, &l);
l = 255 - (255 - l) / 2;
hsl_to_rgb(h, s, l, &lr, &lg, &lb);
if (pattern) {
int ppitch = frame.pitch[0] / frame.GetBpp();
for (unsigned int y = 0; y < frame.h; ++y) {
if ((y / 8) & 1) {
for (int x = 0; x < ppitch; ++x) {
if ((x / 8) & 1) {
*dst++ = b;
*dst++ = g;
*dst++ = r;
*dst++ = 0;
}
else {
*dst++ = lb;
*dst++ = lg;
*dst++ = lr;
*dst++ = 0;
}
}
}
else {
for (int x = 0; x < ppitch; ++x) {
if ((x / 8) & 1) {
*dst++ = lb;
*dst++ = lg;
*dst++ = lr;
*dst++ = 0;
}
else {
*dst++ = b;
*dst++ = g;
*dst++ = r;
*dst++ = 0;
}
}
}
}
}
else {
for (int i=frame.pitch[0]*frame.h/frame.GetBpp();--i>=0;) {
*dst++ = b;
*dst++ = g;
*dst++ = r;
*dst++ = 0;
}
}
}
///////////////////////
// Parsing constructor
DummyVideoProvider::DummyVideoProvider(Aegisub::String _filename, double _fps)
{
wxString filename = _filename;
wxString params;
if (!filename.StartsWith(_T("?dummy:"), &params)) {
throw _T("Attempted creating dummy video provider with non-dummy filename");
}
wxStringTokenizer t(params, _T(":"));
if (t.CountTokens() < 7) {
throw _T("Too few fields in dummy video parameter list");
}
double parsedfps;
long _frames, _width, _height, red, green, blue;
bool pattern = false;
wxString field = t.GetNextToken();
if (!field.ToDouble(&parsedfps)) {
throw _T("Unable to parse fps field in dummy video parameter list");
}
if (_fps == 0.0)
_fps = parsedfps;
field = t.GetNextToken();
if (!field.ToLong(&_frames)) {
throw _T("Unable to parse framecount field in dummy video parameter list");
}
field = t.GetNextToken();
if (!field.ToLong(&_width)) {
throw _T("Unable to parse width field in dummy video parameter list");
}
field = t.GetNextToken();
if (!field.ToLong(&_height)) {
throw _T("Unable to parse height field in dummy video parameter list");
}
field = t.GetNextToken();
if (!field.ToLong(&red)) {
throw _T("Unable to parse red colour field in dummy video parameter list");
}
field = t.GetNextToken();
if (!field.ToLong(&green)) {
throw _T("Unable to parse green colour field in dummy video parameter list");
}
field = t.GetNextToken();
if (!field.ToLong(&blue)) {
throw _T("Unable to parse bluecolour field in dummy video parameter list");
}
field = t.GetNextToken();
if (field == _T("c")) {
pattern = true;
}
Create(_fps, _frames, _width, _height, wxColour(red, green, blue), pattern);
}
//////////////////////
// Direct constructor
DummyVideoProvider::DummyVideoProvider(double _fps, int frames, int _width, int _height, const wxColour &colour, bool pattern) {
Create(_fps, frames, _width, _height, colour, pattern);
}
//////////////
// Destructor
DummyVideoProvider::~DummyVideoProvider() {
}
//////////////////////////////////////////////////
// Construct a fake filename describing the video
wxString DummyVideoProvider::MakeFilename(double fps, int frames, int _width, int _height, const wxColour &colour, bool pattern) {
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(""));
}
/////////////
// Get frame
const AegiVideoFrame DummyVideoProvider::GetFrame(int n,int formatMask) {
lastFrame = n;
return frame;
}
////////////////
// Get position
int DummyVideoProvider::GetPosition() {
return lastFrame;
}
///////////////////
// Get frame count
int DummyVideoProvider::GetFrameCount() {
return framecount;
}
/////////////
// Get width
int DummyVideoProvider::GetWidth() {
return width;
}
//////////////
// Get height
int DummyVideoProvider::GetHeight() {
return height;
}
///////////
// Get FPS
double DummyVideoProvider::GetFPS() {
return fps;
}
////////////////////
// Get decoder name
Aegisub::String DummyVideoProvider::GetDecoderName() {
return L"Dummy Video Provider";
}