| | '''OpenGL extension EXT.histogram |
| | |
| | This module customises the behaviour of the |
| | OpenGL.raw.GL.EXT.histogram to provide a more |
| | Python-friendly API |
| | |
| | Overview (from the spec) |
| | |
| | This extension defines pixel operations that count occurences of |
| | specific color component values (histogram) and that track the minimum |
| | and maximum color component values (minmax). An optional mode allows |
| | pixel data to be discarded after the histogram and/or minmax operations |
| | are completed. Otherwise the pixel data continue on to the next |
| | operation unaffected. |
| | |
| | The official definition of this extension is available here: |
| | http://www.opengl.org/registry/specs/EXT/histogram.txt |
| | ''' |
| | from OpenGL import platform, constant, arrays |
| | from OpenGL import extensions, wrapper |
| | import ctypes |
| | from OpenGL.raw.GL import _types, _glgets |
| | from OpenGL.raw.GL.EXT.histogram import * |
| | from OpenGL.raw.GL.EXT.histogram import _EXTENSION_NAME |
| |
|
| | def glInitHistogramEXT(): |
| | '''Return boolean indicating whether this extension is available''' |
| | from OpenGL import extensions |
| | return extensions.hasGLExtension( _EXTENSION_NAME ) |
| |
|
| | |
| | glGetHistogramParameterfvEXT=wrapper.wrapper(glGetHistogramParameterfvEXT).setOutput( |
| | 'params',size=_glgets._glget_size_mapping,pnameArg='pname',orPassIn=True |
| | ) |
| | glGetHistogramParameterivEXT=wrapper.wrapper(glGetHistogramParameterivEXT).setOutput( |
| | 'params',size=_glgets._glget_size_mapping,pnameArg='pname',orPassIn=True |
| | ) |
| | |
| | glGetMinmaxParameterfvEXT=wrapper.wrapper(glGetMinmaxParameterfvEXT).setOutput( |
| | 'params',size=_glgets._glget_size_mapping,pnameArg='pname',orPassIn=True |
| | ) |
| | glGetMinmaxParameterivEXT=wrapper.wrapper(glGetMinmaxParameterivEXT).setOutput( |
| | 'params',size=_glgets._glget_size_mapping,pnameArg='pname',orPassIn=True |
| | ) |
| | |
| |
|
| | glGetHistogramParameterfvEXT = wrapper.wrapper(glGetHistogramParameterfvEXT).setOutput( |
| | "params",(1,), orPassIn=True |
| | ) |
| | glGetHistogramParameterivEXT = wrapper.wrapper(glGetHistogramParameterivEXT).setOutput( |
| | "params",(1,), orPassIn=True |
| | ) |
| |
|