a ijL @sZdZddlmZddlmZddlmZddlmZddl m Z m Z m Z ddl Z ddlZedZdd l mZmZddlZd ZGd d d eZejZdd lmZdZejrzddlmZmZmZmZWn.eyZ ze!dWYdZ [ n dZ [ 00edur@GdddeZGdddeZGdddeZGdddeZiZ"ddZ#dddZ$dS)aVertexBufferObject helper class Basic usage: my_data = numpy.array( data, 'f') my_vbo = vbo.VBO( my_data ) ... my_vbo.bind() try: ... glVertexPointer( my_vbo, ... ) ... glNormalPointer( my_vbo + 12, ... ) finally: my_vbo.unbind() or with my_vbo: ... glVertexPointer( my_vbo, ... ) ... glNormalPointer( my_vbo + 12, ... ) See the OpenGLContext shader tutorials for a gentle introduction on the usage of VBO objects: http://pyopengl.sourceforge.net/context/tutorials/shader_intro.xhtml This implementation will choose either the ARB or Core (OpenGL 1.5) implementation of the VBO functions. ) ArrayDatatype) FormatHandler)_types)error)bytesunicodeas_8_bitNzOpenGL.arrays.vbo)long integer_types)VBO VBOHandlermapVBOc@sdeZdZdZgZdZeddZeddZd Z dZ d d Z d d Z d dZeZddZiZdS)ImplementationzBAbstraction point for the various implementations that can be usedNcCs|j|dSN)IMPLEMENTATION_CLASSESappend)clsrO/home/ghrups/robot-bench/.venv/lib/python3.9/site-packages/OpenGL/arrays/vbo.pyregister7szImplementation.registercGs0|jdur*|jD]}|}|r|t_q*q|jSr)CHOSENrr)rargspossibleimplementationrrrget_implementation;s  z!Implementation.get_implementationaglGenBuffers glBindBuffer glBufferData glBufferSubData glDeleteBuffers glMapBuffer glUnmapBuffer GL_STATIC_DRAW GL_STATIC_READ GL_STATIC_COPY GL_DYNAMIC_DRAW GL_DYNAMIC_READ GL_DYNAMIC_COPY GL_STREAM_DRAW GL_STREAM_READ GL_STREAM_COPY GL_ARRAY_BUFFER GL_ELEMENT_ARRAY_BUFFER GL_UNIFORM_BUFFER GL_TEXTURE_BUFFER GL_TRANSFORM_FEEDBACK_BUFFERFcCs0|dr|ds(|do.|do.|dkS)NglARBZGL_ZglInitVertexBufferObjectARB) startswithendswithselfnamerrr_arbname\s zImplementation._arbnamecCs4|dr|ddS|dr,|ddS|SdS)NZ_ARBr)rrrrrbasenamebs     zImplementation.basenamecCs|jSr) availabler rrr __nonzero__jszImplementation.__nonzero__cs$tjtjfdd}|S)z5Produce a deleter callback to delete the given bufferc srz }Wn0ty@}zWYd}~qWYd}~qd}~00z|}d|Wqttfy}z WYd}~qd}~00qzjWn$ty}z WYd}~n d}~00dS)N)pop IndexErrorglDeleteBuffersAttributeError TypeError _DELETERS_KeyError)rnamedbuffererrbufbuffersZgluintkeyZnfer rrdoBufferDeletionvs "z0Implementation.deleter..doBufferDeletion)rNullFunctionErrorrZGLuint)r r6r7r8rr5rdeleteroszImplementation.deleter)__name__ __module__ __qualname____doc__rr classmethodrrsplitZEXPORTED_NAMESr&r"r%r(__bool__r:r/rrrrr1s  r)acceleratesupport)r VBOOffsetr VBOOffsetHandlerz5Unable to load VBO accelerator from OpenGL_acceleratec@seZdZdZdZdZd#ddZdZee Z d d Z d$d d Z d dZ ddZddZddZddZddZddZddZddZdd ZeZd%d!d"ZdS)&r a'Instances can be passed into array-handling routines You can check for whether VBOs are supported by accessing the implementation: if bool(vbo.get_implementation()): # vbo version of code else: # fallback version of code FTGL_DYNAMIC_DRAWGL_ARRAY_BUFFERNcCs(||_|||||_g|_g|_dS)aInitialize the VBO object data -- PyOpenGL-compatible array-data structure, numpy arrays, ctypes arrays, etc. usage -- OpenGL usage constant describing expected data-flow patterns (this is a hint to the GL about where/how to cache the data) GL_STATIC_DRAW_ARB GL_STATIC_READ_ARB GL_STATIC_COPY_ARB GL_DYNAMIC_DRAW_ARB GL_DYNAMIC_READ_ARB GL_DYNAMIC_COPY_ARB GL_STREAM_DRAW_ARB GL_STREAM_READ_ARB GL_STREAM_COPY_ARB DRAW constants suggest to the card that the data will be primarily used to draw on the card. 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Method taken from: http://www.mail-archive.com/numpy-discussion@lists.sourceforge.net/msg01161.html This should be considered an *experimental* API, it is not guaranteed to be available in future revisions of this library! Simplification to use ctypes cast from comment by 'sashimi' on my blog... r) frombufferB)numpyrrZ glMapBufferrIrcastZPOINTERZc_byterLrcrdrr)rxaccessrZvpZvp_arrayr]rrrr s  r )r)%r>ZOpenGL.arrays.arraydatatyperZOpenGL.arrays.formathandlerrZ OpenGL.raw.GLrZOpenGLrZ OpenGL._bytesrrrrlogging getLogger_logr r rc__all__objectrrrBr ZACCELERATE_AVAILABLEZOpenGL_accelerate.vborCr rD ImportErrorr3warningrrr rrrrs8!     ]   w1