| | '''OpenGL extension HP.image_transform |
| | |
| | This module customises the behaviour of the |
| | OpenGL.raw.GL.HP.image_transform to provide a more |
| | Python-friendly API |
| | |
| | Overview (from the spec) |
| | |
| | This extension provides support for scaling, rotation, and translation |
| | of two-dimensional pixel rectangles at a fixed location in the pixel |
| | transfer process. The 2D image transformation attributes are specified |
| | as individual values so that that implementations may easily detect |
| | scaling and rotation values that lend themselves to optimization. 2D |
| | image transformation occurs immediately after the post-convolution color |
| | table stage of the pixel pipeline. This extension also defines a color |
| | table that is applied immediately after the image transformation operation. |
| | |
| | The official definition of this extension is available here: |
| | http://www.opengl.org/registry/specs/HP/image_transform.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.HP.image_transform import * |
| | from OpenGL.raw.GL.HP.image_transform import _EXTENSION_NAME |
| |
|
| | def glInitImageTransformHP(): |
| | '''Return boolean indicating whether this extension is available''' |
| | from OpenGL import extensions |
| | return extensions.hasGLExtension( _EXTENSION_NAME ) |
| |
|
| | |
| | glImageTransformParameterivHP=wrapper.wrapper(glImageTransformParameterivHP).setInputArraySize( |
| | 'params', None |
| | ) |
| | |
| | glImageTransformParameterfvHP=wrapper.wrapper(glImageTransformParameterfvHP).setInputArraySize( |
| | 'params', None |
| | ) |
| | glGetImageTransformParameterivHP=wrapper.wrapper(glGetImageTransformParameterivHP).setOutput( |
| | 'params',size=_glgets._glget_size_mapping,pnameArg='pname',orPassIn=True |
| | ) |
| | glGetImageTransformParameterfvHP=wrapper.wrapper(glGetImageTransformParameterfvHP).setOutput( |
| | 'params',size=_glgets._glget_size_mapping,pnameArg='pname',orPassIn=True |
| | ) |
| | |