Aegisub/aegisub/subtitles_provider_csri.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 "subtitles_provider.h"
#include "ass_file.h"
#include "video_context.h"
#define CSRIAPI __declspec(dllexport)
#include "csri/csri.h"
///////////////////
// Link to library
#if __VISUALC__ >= 1200
#pragma comment(lib,"asa.lib")
#endif
/////////////////////////////////////////////////
// Common Subtitles Rendering Interface provider
class CSRISubtitlesProvider : public SubtitlesProvider {
private:
csri_inst *instance;
public:
CSRISubtitlesProvider();
~CSRISubtitlesProvider();
bool CanRaster() { return true; }
void LoadSubtitles(AssFile *subs);
void DrawSubtitles(AegiVideoFrame &dst,double time);
};
///////////
// Factory
class CSRISubtitlesProviderFactory : public SubtitlesProviderFactory {
public:
SubtitlesProvider *CreateProvider() { return new CSRISubtitlesProvider(); }
CSRISubtitlesProviderFactory() : SubtitlesProviderFactory(_T("csri")) {}
} registerCSRI;
///////////////
// Constructor
CSRISubtitlesProvider::CSRISubtitlesProvider() {
instance = NULL;
}
//////////////
// Destructor
CSRISubtitlesProvider::~CSRISubtitlesProvider() {
if (instance) csri_close(instance);
instance = NULL;
}
//////////////////
// Load subtitles
void CSRISubtitlesProvider::LoadSubtitles(AssFile *subs) {
// Close
// HACK: REMOVE THE FOLLOWING LINE
if (instance) return;
if (instance) csri_close(instance);
instance = NULL;
// Prepare subtitles
wxString subsfilename = VideoContext::Get()->GetTempWorkFile();
subs->Save(subsfilename,false,false,_T("UTF-8"));
delete subs;
// Open
instance = csri_open_file(csri_renderer_default(),subsfilename.mb_str(wxConvUTF8),NULL);
}
//////////////////
// Draw subtitles
void CSRISubtitlesProvider::DrawSubtitles(AegiVideoFrame &dst,double time) {
// Check if CSRI loaded properly
if (!instance) return;
// Load data into frame
csri_frame frame;
for (int i=0;i<4;i++) {
if (dst.flipped) {
frame.planes[i] = dst.data[i] + (dst.h-1) * dst.pitch[i];
frame.strides[i] = -(signed)dst.pitch[i];
}
else {
frame.planes[i] = dst.data[i];
frame.strides[i] = dst.pitch[i];
}
}
switch (dst.format) {
case FORMAT_RGB32: frame.pixfmt = CSRI_F_BGR_; break;
case FORMAT_RGB24: frame.pixfmt = CSRI_F_BGR; break;
}
// Set format
csri_fmt format;
format.width = dst.w;
format.height = dst.h;
format.pixfmt = frame.pixfmt;
int error = csri_request_fmt(instance,&format);
if (error) return;
// Render
csri_render(instance,&frame,time);
}