X-Git-Url: https://cinelerra-gg.org/git/?a=blobdiff_plain;f=cinelerra-5.1%2Fcinelerra%2Ffiledpx.C;fp=cinelerra-5.1%2Fcinelerra%2Ffiledpx.C;h=2556e9ce23ecef847503e94f6b49f42ddf921887;hb=8b7ea38c6c4ddf7eab2f606682798aebd5fbb99a;hp=0000000000000000000000000000000000000000;hpb=e15276685c9e3eafaa329ae41092074a0e8452b1;p=goodguy%2Fcinelerra.git

diff --git a/cinelerra-5.1/cinelerra/filedpx.C b/cinelerra-5.1/cinelerra/filedpx.C
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+
+/*
+ * CINELERRA
+ * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
+ *
+ * This program 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+#ifdef HAVE_LIBDPX
+
+#include "asset.h"
+#include "file.h"
+#include "filedpx.h"
+
+class DPXInStream : public InStream
+{
+public:
+	DPXInStream(char * ptr, size_t sz);
+	virtual ~DPXInStream();
+
+	void Close();
+	void Rewind();
+	size_t Read(void * buf, const size_t size);
+	size_t ReadDirect(void * buf, const size_t size);
+	bool EndOfFile() const;
+	bool Seek(long offset, Origin origin);
+
+private:
+	char *databuf;
+	size_t pos;
+	size_t bufsize;
+};
+
+DPXInStream::DPXInStream(char * ptr, size_t sz) :
+	databuf(ptr),
+	pos(0),
+	bufsize(sz)
+{
+}
+
+DPXInStream::~DPXInStream()
+{
+	Close();
+}
+
+void DPXInStream::Close()
+{
+	databuf = nullptr;
+	bufsize = 0;
+	pos = 0;
+}
+
+void DPXInStream::Rewind()
+{
+	pos = 0;
+}
+
+size_t DPXInStream::Read(void * buf, const size_t size)
+{
+	size_t data_to_read = MIN(size, bufsize - pos);
+	if ( data_to_read > 0 )
+	{
+		memcpy(buf, &databuf[pos], data_to_read);
+		pos += data_to_read;
+	}
+	return data_to_read;
+}
+
+size_t DPXInStream::ReadDirect(void * buf, const size_t size)
+{
+	this->Read(buf, size);
+}
+
+bool DPXInStream::EndOfFile() const
+{
+	if ( pos >= bufsize )
+		return true;
+	return false;
+}
+
+bool DPXInStream::Seek(long offset, Origin origin)
+{
+	bool result = true;
+	switch ( origin )
+	{
+	case kStart:
+		if ( (size_t)offset < bufsize )
+			pos = offset;
+		else
+			result = false;
+	break;
+
+	case kCurrent:
+		if ( pos+offset < bufsize )
+			pos += offset;
+		else
+			result = false;
+	break;
+
+	case kEnd:
+		if ( (size_t)offset < bufsize )
+			pos = bufsize - offset - 1;
+		else
+			result = false;
+	break;
+	}
+	return result;
+}
+
+
+
+
+FileDPX::FileDPX(Asset *asset, File *file)
+ : FileList(asset, file, "DPXLIST", ".dpx", FILE_DPX, FILE_DPX_LIST)
+{
+	if(asset->format == FILE_UNKNOWN) 
+		asset->format = FILE_DPX_LIST;
+}
+
+FileDPX::~FileDPX()
+{
+}
+
+void FileDPX::get_parameters(BC_WindowBase *parent_window,
+	Asset *asset, BC_WindowBase* &format_window,
+	int audio_options, int video_options, EDL *edl)
+{
+}
+
+int FileDPX::check_sig(Asset *asset, char *test)
+{
+	if(test[0] == 'D' && test[1] == 'P' && test[2] == 'X' &&
+		test[3] == 'L' && test[4] == 'I' && test[5] == 'S' && test[6] == 'T')
+	{
+		return 1;
+	}
+	return 0;
+}
+
+int FileDPX::get_best_colormodel(Asset *asset, int driver)
+{
+	return BC_RGB161616;
+}
+
+int FileDPX::colormodel_supported(int colormodel)
+{
+	return color_model;
+}
+
+int FileDPX::read_frame_header(char *path)
+{
+	int result = 0;
+
+	InStream img;
+	if (!img.Open(path))
+	{
+		return 1;
+	}
+	
+	dpx::Header header;	
+	if (!header.Read(&img))
+	{		
+		return 1;
+	}
+		
+	asset->width = header.Width();
+	asset->height = header.Height();
+	switch ( header.ComponentDataSize(0) )
+	{
+		case dpx::DataSize::kByte:
+			color_model = BC_RGB888;
+			break;
+		
+		case dpx::DataSize::kWord:
+			color_model = BC_RGB161616;
+			break;
+
+		case dpx::DataSize::kInt:
+		case dpx::DataSize::kFloat:
+		case dpx::DataSize::kDouble:
+			color_model = BC_RGB_FLOAT;
+			break;
+	}
+	return result;
+}
+
+int FileDPX::read_frame(VFrame *frame, VFrame *data)
+{	
+	DPXInStream inStream((char*)data->get_data(), data->get_compressed_size());
+	dpx::Reader dpxReader;
+
+	dpxReader.SetInStream(&inStream);
+	dpxReader.ReadHeader();
+	return dpxReader.ReadImage(0, frame->get_data()) ? 0 : 1;
+}
+
+#endif
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