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2018-06-28T17:45:36Z

1版をインポートしました

wiki>Mindrones: moved Dev:Source/Blender/Sequencer/Image Buffer to Dev:Source/Sequencer/Image Buffer

2010-03-09T10:15:21Z

moved Dev:Source/Blender/Sequencer/Image Buffer to Dev:Source/Sequencer/Image Buffer

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=Image Buffer=
The Image Buffer needs to be a place for Blender to store Image/Video information that it is working on (rendering/mixing). There should be functions to act on the image buffer such as save/load, convert internal storage formats (float/16/32 bit). By allowing different storage formats, High Resolution Color file formats could be supported (open EXR).

An Image buffer should manage it's own size automagically. If a change in format (bit depth/planes) or length, then it should re-allocate memory, do the conversion, and release any unused memory using Blender memory management functions. Endien issues should be taken care of by global functions/macros and not included in this API. Platform specific codec functions should be addressed in this API for taking advantage an OS provided codec.

==Proposed Image Buffer Class/Structure:==
* buffer-> Allocation of memory</tt>x_size'''y_size'''bpp*frames
* temp_buffer->location to allocate new memory for conversions, swapped with buffer when complete and then freed
* format->flag for bpp, planes, and type (float/int)
* x_size->int
* y_size->int
* frames->int
* current_frame->points into buffer to beginning of current frame. On static images, points to begining (i.e. buffer)
* fps->float
* aspect_ration->float
* animation->bool
* frame_size->int, size of frame in bytes

==proposed functions to work on an image buffer object==
* Allocate new image buffer
* Save image buffer to disk (filename, format)-still or movie
* load image buffer (filename)
* convert image buffer (format)
* display image buffer (still, movie)
* get frame (frame)-single frame

==Audio Buffers???==
May want to have an audio buffer object. These would be very similar to image buffers in data storage, and functions to work on them. May want to derive from a common base class (abstract?). These can then be used in the game engine as well for a unified front end, then the Open AL/SDL decision could be seperated out. This would allow the user or OS to determine what sound system to use.

-- [[DeveloperWiki/RobertHolcomb|RobertHolcomb]] - 20 Jan 2005

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Dev:Source/Sequencer/Image Buffer - 版の履歴

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wiki>Mindrones: moved Dev:Source/Blender/Sequencer/Image Buffer to Dev:Source/Sequencer/Image Buffer

Yamyam: 1版をインポートしました