ó š3jä ãó`•SrSSKJrJrJr SSKJrJr SSKrSSKJ r J r SSK 7 SSK J r Sr g) añOpenGL extension SGIX.pixel_tiles This module customises the behaviour of the OpenGL.raw.GL.SGIX.pixel_tiles to provide a more Python-friendly API Overview (from the spec) This extension deals with the interaction of existing GL functions that read pixels from memory, applications that use grids of tiles of pixels, and convolution. Applications that deal with large multi-dimensional images sometimes break the image into a grid of rectangular tiles of pixels. Such an approach can help control memory use and expedite roaming through an image that is large with respect to the available memory. GL functions that cause pixels to be read from memory (e.g., DrawPixels and TexImage2D) assume the pixels are stored as a single series of rows of pixels. The grid of tiles is essentially a sequence of the structures that the pixel reading functions assume. When an application that uses tiling uses a GL function such as DrawPixels, it must iterate through the tiles, either coalescing the tiles into a single tile in preparation for a single GL call or calling the GL function for each tile. The convolution operation imposes strict ordering on the way pixels in a subimage that crosses tile boundaries must be transferred: the rows of pixels transferred must span the entire subimage. Applications that use tiles of pixels and convolution must copy the subimage to be transferred from the grid of tiles to a contiguous region, then pass the now-contiguous rows of pixels to the convolution function. If the coalescing of tiles is not needed for some other reason or is not a side effect of some necessary operation, it is just redundant movement of the pixels. This extension seeks to eliminate the extra copy of data by extending the existing GL functions to accept, as a source of pixels in memory, a grid of tiles of pixels in addition to the current sequence of rows of pixels. The official definition of this extension is available here: http://www.opengl.org/registry/specs/SGIX/pixel_tiles.txt é)ÚplatformÚconstantÚarrays)Ú extensionsÚwrapperN)Ú_typesÚ_glgets)Ú*)Ú_EXTENSION_NAMEcó:•SSKJn UR"[5$)z=Return boolean indicating whether this extension is availabler©r)ÚOpenGLrÚhasGLExtensionr r s ÚT/home/wildlama/miniconda3/lib/python3.13/site-packages/OpenGL/GL/SGIX/pixel_tiles.pyÚglInitPixelTilesSGIXr4s€å!Ø × $Ò $¤oÓ 7Ð7ó)Ú__doc__rrrrrrÚctypesÚ OpenGL.raw.GLrr ÚOpenGL.raw.GL.SGIX.pixel_tilesr r©rrÚrs'ðñ+÷X.Ñ-ß&Û ß)Ü,Ý:ó8r