OpenGL utilities¶
New in version 1.0.7.
- kivy.graphics.opengl_utils.gl_get_extensions()¶
Return a list of OpenGL extensions available. All the names in the list have the GL_ stripped at the start if exist, and are in lowercase.
>>> print gl_get_extensions() ['arb_blend_func_extended', 'arb_color_buffer_float', 'arb_compatibility', 'arb_copy_buffer'... ]
- kivy.graphics.opengl_utils.gl_has_extension()¶
Check if an OpenGL extension is available. If the name start with GL_, it will be stripped for the test, and converted to lowercase.
>>> gl_has_extension('NV_get_tex_image') False >>> gl_has_extension('OES_texture_npot') True
- kivy.graphics.opengl_utils.gl_has_capability()¶
Return the status of a OpenGL Capability. This is a wrapper that auto discover all the capabilities that Kivy might need. The current capabilites test are:
- GLCAP_BGRA: Test the support of BGRA texture format
- GLCAP_NPOT: Test the support of Non Power of Two texture
- GLCAP_S3TC: Test the support of S3TC texture (DXT1, DXT3, DXT5)
- GLCAP_DXT1: Test the support of DXT texture (subset of S3TC)
- kivy.graphics.opengl_utils.gl_register_get_size()¶
Register an association between a OpenGL Const used in glGet* to a number of elements.
By example, the GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX is a special pname that will return 1 integer (nvidia only).
>>> GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX = 0x9047 >>> gl_register_get_size(GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX, 1) >>> glGetIntegerv(GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX)[0] 524288
- kivy.graphics.opengl_utils.gl_has_texture_format()¶
Return if a texture format is supported by your system, natively or by conversion. For example, if your card doesn’t support ‘bgra’, we are able to convert to ‘rgba’, but in software mode.
- kivy.graphics.opengl_utils.gl_has_texture_conversion()¶
Return 1 if the texture can be converted to a native format
- kivy.graphics.opengl_utils.gl_has_texture_native_format()¶
Return 1 if the texture format is handled natively.
>>> gl_has_texture_format('azdmok') 0 >>> gl_has_texture_format('rgba') 1 >>> gl_has_texture_format('s3tc_dxt1') [INFO ] [GL ] S3TC texture support is available [INFO ] [GL ] DXT1 texture support is available 1
- kivy.graphics.opengl_utils.gl_get_texture_formats()¶
Return a list of texture format recognized by kivy. The texture list is informative, but might not been supported by your hardware. If you want a list of supported textures, you must filter that list like that:
supported_fmts = [gl_has_texture_format(x) for x in gl_get_texture_formats()]
- kivy.graphics.opengl_utils.gl_get_version()¶
Return the (major, minor) OpenGL version, parsed from the GL_VERSION.
New in version 1.2.0.
- kivy.graphics.opengl_utils.gl_get_version_minor()¶
Return the minor component of the OpenGL version.
New in version 1.2.0.
- kivy.graphics.opengl_utils.gl_get_version_major()¶
Return the major component of the OpenGL version.
New in version 1.2.0.