Simple python benchmark shows this to be about 3x faster in the case where an update isn't needed.
This also speeds up rna function argument parsing, since each arg in a function call did 2 string lookups on the context which were never needed.
globbing vs explicit is discussed here.
http://www.cmake.org/pipermail/cmake/2008-December/025694.html
Practical implications are:
- developers need to keep CMakeLists.txt files up to date.
- Users wont get strange linking errors if they build after a file is added, since CMake detects CMakeLists.txt is modified and automatically reconfigure.
- removed deprecated bitmap arg from IMB_allocImBuf (plugins will need updating).
- mostly tagged UNUSED() since some of these functions look like they may need to have the arguments used later.
Now if you have a VideoTexture.Texture you can use its id and draw it with bgl
The Id is only going to be valid if the obj you are getting the VideoTexture.Texture from has a valid texture. In the examples you will see them as planes, that become invisible at load time, but are needed to validate the texture id.
This is a simple example file:
http://blenderecia.orgfree.com/blender/bind_id_simple.blend
And a (much) more advanced one:
http://blenderecia.orgfree.com/blender/bind_id.blend
(get also this image and save it to the same folder of your blend file - http://blenderecia.orgfree.com/blender/mask.png )
Benoit, I couldn't decide on better names so for now I'm glad with this one.
ImageBuff([width,height[,color[,scale]]])
width, height: size of buffer in pixel.
default: buffer not allocated.
color: initial value of RGB channels. Alpha channel is 255.
Possible values: 0(black=default) -> 255 (white)
scale: True or False to enable or disable fast scaling
default: False
This constructors eliminates the need to use the load function
when you just want to initialize the image buffer to black or white.
- Use BGL buffer instead of string for image data.
- Add buffer interface to image source.
- Allow customization of pixel format.
- Add valid property to check if the image data is available.
The image property of all Image source objects will now
return a BGL 'buffer' object. Previously it was returning
a string, which was not working at all with Python 3.1.
The BGL buffer type allows sequence access to bytes and
is directly usable in BGL OpenGL wrapper functions.
The buffer is formated as a 1 dimensional array of bytes
with 4 bytes per pixel in RGBA order.
BGL buffers will also be accepted in the ImageBuff load()
and plot() functions.
It is possible to customize the pixel format by using
the VideoTexture.imageToArray(image, mode) function:
the first argument is a Image source object, the second
optional argument is a format string using the R, G, B,
A, 0 and 1 characters. For example "BGR" means that each
pixel will be 3 bytes, corresponding to the Blue, Green
and Red channel in that order. Use 0 for a fixed hex 00
value, 1 for hex FF. The default mode is "RGBA".
All Image source objects now support the buffer interface
which allows to create memoryview objects for direct access
to the image internal buffer without memory copy. The buffer
format is one dimensional array of bytes with 4 bytes per
pixel in RGBA order. The buffer is writable, which allows
custom modifications of the image data.
v = memoryview(source)
A bug in the Python 3.1 buffer API will cause a crash if
the memoryview object cannot be created. Therefore, you
must always check first that an image data is available
before creating a memoryview object. Use the new valid
attribute for that:
if source.valid:
v = memoryview(source)
...
Note: the BGL buffer object itself does not yet support
the buffer interface.
Note: the valid attribute makes sense only if you use
image source in conjunction with texture object like this:
# refresh texture but keep image data in memory
texture.refresh(False)
if texture.source.valid:
v = memoryview(texture.source)
# process image
...
# invalidate image for next texture refresh
texture.source.refresh()
Limitation: While memoryview objects exist, the image cannot be
resized. Resizing occurs with ImageViewport objects when the
viewport size is changed or with ImageFFmpeg when a new image
is reloaded for example. Any attempt to resize will cause a
runtime error. Delete the memoryview objects is you want to
resize an image source object.
Add optional parameter to VideoTexture.Texture refresh() method
to specify timestamp (in seconds from start of movie) of the frame
to be loaded. This value is passed down to image source and for
VideoFFmpeg source, it is used instead of current time to load
the frame from the video file.
When combined with an audio actuator, it can be used to synchronize
the sound and the image: specify the same video file in the sound
actuator and use the KX_SoundActuator time attribute as timestamp
to refresh: the frame corresponding to the sound will be loaded:
GameLogic.video.refresh(True, soundAct.time)
Synopsis: plot(brush,width,height,x,y,mode)
plot(imgbuff,x,y,mode)
The first form uses a byte array containing the brush shape.
The second form uses another ImageBuff object as a brush.
The ImageBuff object must be initialized before you can call
these methods. Use load(rgb_buffer,sizex,sizey) method to create
an image buffer of given size (with alpha channel set to 255).
The brush is plotted directly in the image buffer. The texture
is updated only when the VideoTexture.Texture parent object is
refreshed: this will download the image buffer to the GPU.
brush: Byte array containing RGBA data to be plotted in image buffer.
The data must be continuous in memory, organized row by row
starting from lower left corner of the image. Each pixel is
4 bytes representing RGBA data in that order.
width: Horizontal size in pixels of image in brush.
height: Vertical size in pixels of the image in brush.
imgbuff:Another ImageBuff object that is used as a brush. The object
must have been initialized first with load().
x: Horizontal position in pixel from left side of the image buffer
where the brush will be plotted. The brush is plotted on pixels
positions x->x+width-1. Clipping is performed if the brush falls
partially outside the image buffer.
y: Vertical position in pixel from bottom side of the image buffer
where the brush will be plotted.
mode: Mode of drawing. Use one of the following value:
0 : MIX
1 : ADD
2 : SUB
3 : MUL
4 : LIGHTEN
5 : DARKEN
6 : ERASE ALPHA
7 : ADD ALPHA
1000 : COPY RGBA (default)
1001 : COPY RGB
1002 : COPY ALPHA
Modes 0 to 7 are 'blend' modes: the brush pixels are combined
with the image pixel in various ways. Refer to Blender documentation
to learn more about these modes.
* Convert all code to use new functions.
* Branch maintainers may want to skip this commit, and run this
conversion script instead, if they use a lot of math functions
in new code:
http://www.pasteall.org/9052/python
* bring back 'player' libtype, after investigation with ideasman.
scons/mingw works nicely, for some reason msvc fails to link still, will look further into it.
* further cleaning of 'player' stuff. Now only 3 libs are remaining, of which ideally the stubs lib will be fixed at some point, fading away into the dark history of not-so-nice code. The current blenderplayer part is still a little bit hackish, I'll see if I can find a better alternative, for now it works good enough.
* first working changes to get blenderplayer linking
* blenderplayer/ moved into source/ (CMakeLists.txt changed for that too)
* added externs for bprogname to gp_ghost, so that it links properly
* Add BGE_CXXFLAGS so we can get rid of hard-coded BGE compiler settings. This was only done for windows, but now linuxers and osxers should be able to set BGE-specific optimisation too. See the windows default configs for example.
* ensure all SConscripts are ready for win64-vc (where necessary).
* ensure we have proper _DEBUG flag for Python when we're doing a debug build.
* some cleaning up of linking etc.
* ensure /EHsc is there for game engine modules.
* Removed modules Expression and CValue, neither were ever available.
* Added GameLogic.EvalExpression(exp) from the Expression module, evaluates an expression like the expression controller (not sure if this is really that useful since python is far more advanced).
* resetting the original blend file path didint work (own fault == -> =)
* Py3.x PyModule_Create didnt allow importing since it didn't add to sys.modules,
Looks like they want us to use init-tab array, but this doesn't suit us since
it needs to be setup before python is initialized.
* Documented GameLogic.globalDict
svn merge https://svn.blender.org/svnroot/bf-blender/trunk/blender -r19820:HEAD
Notes:
* Game and sequencer RNA, and sequencer header are now out of date
a bit after changes in trunk.
* I didn't know how to port these bugfixes, most likely they are
not needed anymore.
* Fix "duplicate strip" always increase the user count for ipo.
* IPO pinning on sequencer strips was lost during Undo.
- Removed/Commented some unused vars
- CValue::GetPropertyText() could return a temp reference to a variable on the stack, option wasnt used anywhere so removed.
- KX_ConstraintWrapper::GetConstraintId allows args but ignored them
- KX_ConstraintWrapper::PySetParam didnt return NULL on an error (messing up pythons exceptions).
- BLI_natstrcmp didnt return 0 when the while loop exited
