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'''OpenGL extension NV.draw_vulkan_image
This module customises the behaviour of the
OpenGL.raw.GL.NV.draw_vulkan_image to provide a more
Python-friendly API
Overview (from the spec)
This extension provides a new function, DrawVkImageNV(), allowing
applications to draw a screen-aligned rectangle displaying some or all of
the contents of a two-dimensional Vulkan VkImage. Callers specify a
Vulkan VkImage handle, an optional OpenGL sampler object, window
coordinates of the rectangle to draw, and texture coordinates corresponding
to the corners of the rectangle. For each fragment produced by the
rectangle, DrawVkImageNV interpolates the texture coordinates, performs
a texture lookup, and uses the texture result as the fragment color.
No shaders are used by DrawVkImageNV; the results of the texture lookup
are used in lieu of a fragment shader output. The fragments generated are
processed by all per-fragment operations. In particular,
DrawVkImageNV() fully supports blending and multisampling.
In order to synchronize between Vulkan and OpenGL there are three other
functions provided; WaitVkSemaphoreNV(), SignalVkSemaphoreNV() and
SignalVkFenceNV(). These allow OpenGL to wait for Vulkan to complete work
and also Vulkan to wait for OpenGL to complete work. Together OpenGL
and Vulkan can synchronize on the server without application
interation.
Finally the function GetVkProcAddrNV() is provided to allow the OpenGL
context to query the Vulkan entry points directly and avoid having to
load them through the typical Vulkan loader.
The official definition of this extension is available here:
http://www.opengl.org/registry/specs/NV/draw_vulkan_image.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.NV.draw_vulkan_image import *
from OpenGL.raw.GL.NV.draw_vulkan_image import _EXTENSION_NAME
def glInitDrawVulkanImageNV():
'''Return boolean indicating whether this extension is available'''
from OpenGL import extensions
return extensions.hasGLExtension( _EXTENSION_NAME )
# INPUT glGetVkProcAddrNV.name size not checked against 'name'
glGetVkProcAddrNV=wrapper.wrapper(glGetVkProcAddrNV).setInputArraySize(
'name', None
)
### END AUTOGENERATED SECTION
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