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Update Wayland example. #104

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62 changes: 42 additions & 20 deletions example/contribs/example_wayland.py
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Original file line number Diff line number Diff line change
Expand Up @@ -8,35 +8,49 @@
import time
from vulkan import *
from pywayland.client import Display
from pywayland.protocol.wayland import Compositor, Shell, Shm
from pywayland.protocol.wayland import WlCompositor, WlShm
from pywayland.protocol.xdg_shell.xdg_wm_base import XdgWmBase, XdgWmBaseProxy
from pywayland.protocol.xdg_shell.xdg_toplevel import XdgToplevelProxy
from pywayland.protocol.xdg_shell.xdg_surface import XdgSurfaceProxy


WIDTH = 400
HEIGHT = 400


def shm_format_handler(shm, format_):
pass
def shm_format_handler(shm, format_int):
format_enum = WlShm.format(format_int)
print(f"Available format: {format_enum.name}")

def wm_base_ping_handler(xdg_wm_base: XdgWmBaseProxy, serial: int):
xdg_wm_base.pong(serial)

def registry_global_handler(registry, id_, interface, version):
window = registry.user_data
if interface == 'wl_compositor':
window['compositor'] = registry.bind(id_, Compositor, version)
elif interface == 'wl_shell':
window['shell'] = registry.bind(id_, Shell, version)
window['compositor'] = registry.bind(id_, WlCompositor, version)
elif interface == 'wl_shm':
window['shm'] = registry.bind(id_, Shm, version)
window['shm'] = registry.bind(id_, WlShm, version)
window['shm'].dispatcher['format'] = shm_format_handler
elif interface == "xdg_wm_base":
window["xdg_wm_base"] = registry.bind(id_, XdgWmBase, version)
window["xdg_wm_base"].dispatcher["ping"] = wm_base_ping_handler

def registry_global_remover(registry, id_):
print("got a registry losing event for {}".format(id))

def shell_surface_ping_handler(shell_surface, serial):
shell_surface.pong(serial)
def xdg_surface_configure_handler(xdg_surface: XdgSurfaceProxy, serial: int):
xdg_surface.ack_configure(serial)

def xdg_toplevel_configure_handler(toplevel: XdgToplevelProxy, width: int, height: int, states: bytes):
print(f"Configuring {width}x{height}")

def xdg_toplevel_close_handler(toplevel: XdgToplevelProxy):
print("Window closed")

window = {
'compositor': None,
'shell': None,
'xdg_wm_base': None,
'shm': None
}

Expand All @@ -48,21 +62,28 @@ def shell_surface_ping_handler(shell_surface, serial):
registry.dispatcher['global_remove'] = registry_global_remover
registry.user_data = window

display.dispatch()
display.dispatch(block=True)
display.roundtrip()

assert window['compositor']
assert window['shell']
assert window['xdg_wm_base']
assert window['shm']

surface = window['compositor'].create_surface()
shell_surface = window['shell'].get_shell_surface(surface)
shell_surface.set_toplevel()
shell_surface.dispatcher['ping'] = shell_surface_ping_handler
wl_surface = window['compositor'].create_surface()

xdg_surface = window["xdg_wm_base"].get_xdg_surface(wl_surface)
xdg_surface.dispatcher["configure"] = xdg_surface_configure_handler

toplevel = xdg_surface.get_toplevel()
toplevel.dispatcher["configure"] = xdg_toplevel_configure_handler
toplevel.dispatcher["close"] = xdg_toplevel_close_handler

toplevel.set_app_id("python_vulkan_wayland_example")
toplevel.set_title("Python Vulkan Wayland Example")

region = window['compositor'].create_region()
region.add(0, 0, WIDTH, HEIGHT)
surface.set_opaque_region(region)
wl_surface.set_opaque_region(region)


# ----------
Expand All @@ -83,7 +104,7 @@ def shell_surface_ping_handler(shell_surface, serial):
layers = [l.layerName for l in layers]
print("availables layers: %s\n" % layers)

layers = ['VK_LAYER_LUNARG_standard_validation']
layers = ['VK_LAYER_KHRONOS_validation']
extensions = ['VK_KHR_surface', 'VK_EXT_debug_report', 'VK_KHR_wayland_surface']

createInfo = VkInstanceCreateInfo(
Expand Down Expand Up @@ -127,7 +148,7 @@ def surface_wayland():
surface_create = VkWaylandSurfaceCreateInfoKHR(
sType=VK_STRUCTURE_TYPE_WAYLAND_SURFACE_CREATE_INFO_KHR,
display=ffi.cast('void*', display._ptr),
surface=ffi.cast('void*', surface._ptr),
surface=ffi.cast('void*', wl_surface._ptr),
flags=0)
return vkCreateWaylandSurfaceKHR(instance, surface_create, None)

Expand Down Expand Up @@ -596,7 +617,7 @@ def get_swap_extent(capabilities):
vkCmdBeginRenderPass(command_buffer, render_pass_begin_create, VK_SUBPASS_CONTENTS_INLINE)

# Bing pipeline
vkCmdBindPipeline(command_buffer, VK_PIPELINE_BIND_POINT_GRAPHICS, pipeline)
vkCmdBindPipeline(command_buffer, VK_PIPELINE_BIND_POINT_GRAPHICS, pipeline[0])

# Draw
vkCmdDraw(command_buffer, 3, 1, 0, 0)
Expand Down Expand Up @@ -658,6 +679,7 @@ def draw_frame():
present_create.pImageIndices[0] = image_index
vkQueuePresentKHR(presentation_queue, present_create)

vkQueueWaitIdle(presentation_queue)

# Main loop
running = True
Expand Down