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96 lines
3.2 KiB
Plaintext
96 lines
3.2 KiB
Plaintext
// Filename: openCVTexture.I
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// Created by: zacpavlov (19Aug05)
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//
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////////////////////////////////////////////////////////////////////
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//
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// PANDA 3D SOFTWARE
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// Copyright (c) Carnegie Mellon University. All rights reserved.
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//
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// All use of this software is subject to the terms of the revised BSD
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// license. You should have received a copy of this license along
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// with this source code in a file named "LICENSE."
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//
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////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////
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// Function: OpenCVTexture::VideoStream::is_valid
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// Access: Public
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// Description: Returns true if this stream is open and ready, false
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// otherwise.
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////////////////////////////////////////////////////////////////////
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INLINE bool OpenCVTexture::VideoStream::
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is_valid() const {
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return (_capture != NULL);
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}
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////////////////////////////////////////////////////////////////////
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// Function: OpenCVTexture::VideoStream::is_from_file
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// Access: Public
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// Description: Returns true if this stream takes its input from a
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// video file, false otherwise.
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////////////////////////////////////////////////////////////////////
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INLINE bool OpenCVTexture::VideoStream::
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is_from_file() const {
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return !_filename.empty();
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}
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////////////////////////////////////////////////////////////////////
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// Function: OpenCVTexture::VideoPage::Constructor
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// Access: Public
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// Description:
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////////////////////////////////////////////////////////////////////
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INLINE OpenCVTexture::VideoPage::
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VideoPage() {
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}
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////////////////////////////////////////////////////////////////////
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// Function: OpenCVTexture::VideoPage::Copy Constructor
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// Access: Public
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// Description:
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////////////////////////////////////////////////////////////////////
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INLINE OpenCVTexture::VideoPage::
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VideoPage(const OpenCVTexture::VideoPage ©) :
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_color(copy._color),
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_alpha(copy._alpha)
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{
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}
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////////////////////////////////////////////////////////////////////
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// Function: OpenCVTexture::VideoPage::Destructor
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// Access: Public
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// Description:
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////////////////////////////////////////////////////////////////////
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INLINE OpenCVTexture::VideoPage::
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~VideoPage() {
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}
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////////////////////////////////////////////////////////////////////
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// Function: OpenCVTexture::consider_update
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// Access: Protected
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// Description: Calls update_frame() if the current frame has
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// changed.
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////////////////////////////////////////////////////////////////////
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INLINE void OpenCVTexture::
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consider_update() {
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int this_frame = ClockObject::get_global_clock()->get_frame_count();
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if (this_frame != _last_frame_update) {
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int frame = get_frame();
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if (_current_frame != frame) {
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update_frame(frame);
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_current_frame = frame;
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} else {
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// Loop through the pages to see if there's any camera stream to update.
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int max_z = max(_z_size, (int)_pages.size());
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for (int z = 0; z < max_z; ++z) {
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VideoPage &page = _pages[z];
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if (!page._color.is_from_file() || !page._alpha.is_from_file()) {
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update_frame(frame, z);
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}
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}
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}
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_last_frame_update = this_frame;
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}
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}
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