def create_surface(self, x=0, y=0, w=0, h=0):
#Set the viewport position and size
dst_rect = c_ints((x, y, w, h))
src_rect = c_ints((x, y, w << 16, h << 16))
self.dispman_display = bcm.vc_dispmanx_display_open(0) #LCD setting
self.dispman_update = bcm.vc_dispmanx_update_start(0)
self.dispman_element = bcm.vc_dispmanx_element_add(
self.dispman_update,
self.dispman_display,
0, ctypes.byref(dst_rect),
0, ctypes.byref(src_rect),
DISPMANX_PROTECTION_NONE,
0, 0, 0)
nativewindow = c_ints((self.dispman_element, w, h + 1));
bcm.vc_dispmanx_update_submit_sync(self.dispman_update)
nw_p = ctypes.pointer(nativewindow)
self.nw_p = nw_p
self.surface = openegl.eglCreateWindowSurface(self.display, self.config, self.nw_p, 0)
assert self.surface != EGL_NO_SURFACE
r = openegl.eglMakeCurrent(self.display, self.surface, self.surface,
self.context)
assert r
#Create viewport
opengles.glViewport(0, 0, w, h)
def createBuffer(self):
self.vc_image_ptr = ctypes.c_uint()
self.pitch = self.imgw * 3
assert self.pitch % 32 == 0
self.imgtype = VC_IMAGE_RGB888
with self.bcmUpdate() as dispman_update:
self.img_resource = bcm.vc_dispmanx_resource_create(
self.imgtype, self.imgw, self.imgh, ctypes.byref(self.vc_image_ptr)
)
assert self.img_resource != 0
self.src_rect = c_ints((0, 0, self.imgw << 16, self.imgh << 16))
# scale width so that aspect ratio is retained with display height - might crop right part of the bg
dstw = int(self.h.value * self.imgw / self.imgh)
self.dst_rect = c_ints((0, 0, dstw, self.h))
self.alpha = c_ints((DISPMANX_FLAGS_ALPHA_FROM_SOURCE, 255, 0))
self.img_element = bcm.vc_dispmanx_element_add(
dispman_update,
self.dispman_display,
self.layer,
ctypes.byref(self.dst_rect),
self.img_resource,
ctypes.byref(self.src_rect),
DISPMANX_PROTECTION_NONE,
ctypes.byref(self.alpha),
0,
DISPMANX_NO_ROTATE,
)
assert self.img_element != 0
def patched_create_surface(self, x=0, y=0, w=0, h=0, layer=0):
#Set the viewport position and size
dst_rect = c_ints((x, y, w, h))
src_rect = c_ints((x, y, w << 16, h << 16))
self.dispman_display = bcm.vc_dispmanx_display_open(0) #LCD setting
self.dispman_update = bcm.vc_dispmanx_update_start(0)
alpha = ctypes.byref(c_ints((1<<16, 0, 0)))
self.dispman_element = bcm.vc_dispmanx_element_add(
self.dispman_update,
self.dispman_display,
layer, ctypes.byref(dst_rect),
0, ctypes.byref(src_rect),
DISPMANX_PROTECTION_NONE,
alpha, 0, 0)
nativewindow = c_ints((self.dispman_element, w, h + 1))
bcm.vc_dispmanx_update_submit_sync(self.dispman_update)
nw_p = ctypes.pointer(nativewindow)
self.nw_p = nw_p
self.surface = openegl.eglCreateWindowSurface(self.display, self.config, self.nw_p, 0)
assert self.surface != EGL_NO_SURFACE
r = openegl.eglMakeCurrent(self.display, self.surface, self.surface,
self.context)
assert r
#Create viewport
opengles.glViewport(0, 0, w, h)
def createBuffer(self):
self.vc_image_ptr = ctypes.c_uint()
self.pitch = self.imgw * 3;
assert(self.pitch % 32 == 0)
self.imgtype = VC_IMAGE_RGB888
with self.bcmUpdate() as dispman_update:
self.img_resource = bcm.vc_dispmanx_resource_create(
self.imgtype,
self.imgw,
self.imgh,
ctypes.byref(self.vc_image_ptr))
assert (self.img_resource != 0)
self.src_rect = c_ints((0, 0, self.imgw << 16, self.imgh << 16))
# scale width so that aspect ratio is retained with display height - might crop right part of the bg
dstw = int(self.h.value * self.imgw / self.imgh)
self.dst_rect = c_ints((0, 0, dstw, self.h))
self.alpha = c_ints((DISPMANX_FLAGS_ALPHA_FROM_SOURCE, 255, 0))
self.img_element = bcm.vc_dispmanx_element_add(dispman_update,
self.dispman_display,
self.layer,
ctypes.byref(self.dst_rect),
self.img_resource,
ctypes.byref(self.src_rect),
DISPMANX_PROTECTION_NONE,
ctypes.byref(self.alpha),
0,
DISPMANX_NO_ROTATE)
assert(self.img_element != 0)
def createBuffer(self):
vc_image_ptr = ctypes.c_uint()
self.pitch = self.imgw // 16 * 16 * 3
alignedHeight = self.imgh // 16 * 16
self.imgtype = VC_IMAGE_RGB888
with self.bcmUpdate() as dispman_update:
self.img_resource = bcm.vc_dispmanx_resource_create(
self.imgtype, self.imgw | (self.pitch << 16),
self.imgh | (alignedHeight << 16), ctypes.byref(vc_image_ptr))
assert (self.img_resource != 0)
src_rect = c_ints(
(0 << 16, 0 << 16, self.imgw << 16, self.imgh << 16))
dst_rect = c_ints((0, 0, self.w, self.h))
alpha = c_ints((DISPMANX_FLAGS_ALPHA_FROM_SOURCE, 255, 0))
self.img_element = bcm.vc_dispmanx_element_add(
dispman_update, self.dispman_display, self.layer,
ctypes.byref(dst_rect), self.img_resource,
ctypes.byref(src_rect), DISPMANX_PROTECTION_NONE,
ctypes.byref(alpha), 0, DISPMANX_NO_ROTATE)
assert (self.img_element != 0)
def create_display(self,
x=0,
y=0,
w=0,
h=0,
depth=24,
samples=4,
layer=0,
display_config=DISPLAY_CONFIG_DEFAULT):
self.display = openegl.eglGetDisplay(EGL_DEFAULT_DISPLAY)
assert self.display != EGL_NO_DISPLAY
self.display_config = display_config
r = openegl.eglInitialize(self.display, 0, 0)
#assert r == EGL_FALSE
attribute_list = c_ints(
(EGL_RED_SIZE, 8, EGL_GREEN_SIZE, 8, EGL_BLUE_SIZE, 8,
EGL_DEPTH_SIZE, depth, EGL_ALPHA_SIZE, 8, EGL_BUFFER_SIZE, 32,
EGL_SAMPLES, samples, EGL_STENCIL_SIZE, 8, EGL_SURFACE_TYPE,
EGL_WINDOW_BIT, EGL_NONE))
numconfig = c_int()
self.config = ctypes.c_void_p()
r = openegl.eglChooseConfig(self.display, ctypes.byref(attribute_list),
ctypes.byref(self.config), 1,
ctypes.byref(numconfig))
context_attribs = c_ints((EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE))
self.context = openegl.eglCreateContext(self.display, self.config,
EGL_NO_CONTEXT,
ctypes.byref(context_attribs))
assert self.context != EGL_NO_CONTEXT
self.create_surface(x, y, w, h, layer)
opengles.glDepthRangef(c_float(0.0), c_float(1.0))
opengles.glClearColor(c_float(0.3), c_float(0.3), c_float(0.7),
c_float(1.0))
opengles.glBindFramebuffer(GL_FRAMEBUFFER, 0)
#Setup default hints
opengles.glEnable(GL_CULL_FACE)
opengles.glEnable(GL_DEPTH_TEST)
opengles.glDepthFunc(GL_LESS)
opengles.glDepthMask(1)
opengles.glCullFace(GL_FRONT)
opengles.glHint(GL_GENERATE_MIPMAP_HINT, GL_NICEST)
opengles.glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, 1,
GL_ONE_MINUS_SRC_ALPHA)
# Switches off alpha blending problem with desktop - is there a bug in the
# driver?
# Thanks to Roland Humphries who sorted this one!!
opengles.glColorMask(1, 1, 1, 0)
#opengles.glEnableClientState(GL_VERTEX_ARRAY)
#opengles.glEnableClientState(GL_NORMAL_ARRAY)
self.active = True
def create_surface(self, x=0, y=0, w=0, h=0):
#Set the viewport position and size
dst_rect = c_ints((x, y, w, h))
src_rect = c_ints((x, y, w << 16, h << 16))
if PLATFORM != PLATFORM_PI:
self.width, self.height = w, h
# Set some WM info
root = xlib.XRootWindowOfScreen(self.screen)
self.window = xlib.XCreateSimpleWindow(self.d, root, x, y, w, h, 1, 0, 0)
s = ctypes.create_string_buffer(b'WM_DELETE_WINDOW')
self.WM_DELETE_WINDOW = ctypes.c_ulong(xlib.XInternAtom(self.d, s, 0))
#TODO add functions to xlib for these window manager libx11 functions
#self.window.set_wm_name('pi3d xlib window')
#self.window.set_wm_icon_name('pi3d')
#self.window.set_wm_class('draw', 'XlibExample')
xlib.XSetWMProtocols(self.d, self.window, ctypes.byref(self.WM_DELETE_WINDOW), 1)
#self.window.set_wm_hints(flags = Xutil.StateHint,
# initial_state = Xutil.NormalState)
#self.window.set_wm_normal_hints(flags = (Xutil.PPosition | Xutil.PSize
# | Xutil.PMinSize),
# min_width = 20,
# min_height = 20)
xlib.XSelectInput(self.d, self.window, KeyPressMask)
xlib.XMapWindow(self.d, self.window)
self.surface = openegl.eglCreateWindowSurface(self.display, self.config, self.window, 0)
else:
self.dispman_display = bcm.vc_dispmanx_display_open(0) #LCD setting
self.dispman_update = bcm.vc_dispmanx_update_start(0)
self.dispman_element = bcm.vc_dispmanx_element_add(
self.dispman_update,
self.dispman_display,
0, ctypes.byref(dst_rect),
0, ctypes.byref(src_rect),
DISPMANX_PROTECTION_NONE,
0, 0, 0)
nativewindow = c_ints((self.dispman_element, w, h + 1))
bcm.vc_dispmanx_update_submit_sync(self.dispman_update)
nw_p = ctypes.pointer(nativewindow)
self.nw_p = nw_p
self.surface = openegl.eglCreateWindowSurface(self.display, self.config, self.nw_p, 0)
assert self.surface != EGL_NO_SURFACE
r = openegl.eglMakeCurrent(self.display, self.surface, self.surface,
self.context)
assert r
#Create viewport
opengles.glViewport(0, 0, w, h)
def create_display(self, x=0, y=0, w=0, h=0, depth=24, samples=4, layer=0, display_config=DISPLAY_CONFIG_DEFAULT):
self.display = openegl.eglGetDisplay(EGL_DEFAULT_DISPLAY)
assert self.display != EGL_NO_DISPLAY
self.display_config = display_config
for smpl in [samples, 0]: # try with samples first but ANGLE dll can't cope so drop to 0 for windows
r = openegl.eglInitialize(self.display, None, None)
attribute_list = c_ints((EGL_RED_SIZE, 8,
EGL_GREEN_SIZE, 8,
EGL_BLUE_SIZE, 8,
EGL_DEPTH_SIZE, depth,
EGL_ALPHA_SIZE, 8,
EGL_BUFFER_SIZE, 32,
EGL_SAMPLES, smpl,
EGL_STENCIL_SIZE, 8,
EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
EGL_NONE))
numconfig = c_int()
self.config = ctypes.c_void_p()
r = openegl.eglChooseConfig(self.display,
ctypes.byref(attribute_list),
ctypes.byref(self.config), 1,
ctypes.byref(numconfig))
context_attribs = c_ints((EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE))
self.context = openegl.eglCreateContext(self.display, self.config,
EGL_NO_CONTEXT, ctypes.byref(context_attribs) )
if self.context != EGL_NO_CONTEXT:
break
assert self.context != EGL_NO_CONTEXT
self.create_surface(x, y, w, h, layer)
opengles.glDepthRangef(c_float(0.0), c_float(1.0))
opengles.glClearColor (c_float(0.3), c_float(0.3), c_float(0.7), c_float(1.0))
opengles.glBindFramebuffer(GL_FRAMEBUFFER, 0)
#Setup default hints
opengles.glEnable(GL_CULL_FACE)
opengles.glEnable(GL_DEPTH_TEST)
opengles.glDepthFunc(GL_LESS);
opengles.glDepthMask(1);
opengles.glCullFace(GL_FRONT)
opengles.glHint(GL_GENERATE_MIPMAP_HINT, GL_NICEST)
opengles.glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA,
1, GL_ONE_MINUS_SRC_ALPHA)
# Switches off alpha blending problem with desktop - is there a bug in the
# driver?
# Thanks to Roland Humphries who sorted this one!!
opengles.glColorMask(1, 1, 1, 0)
#opengles.glEnableClientState(GL_VERTEX_ARRAY)
#opengles.glEnableClientState(GL_NORMAL_ARRAY)
self.active = True
def setImg(self, path):
img = self.loadImg(path)
bmpRect = c_ints((0, 0, self.imgw, self.imgh))
imgbuffer = numpy.array(img)
result = bcm.vc_dispmanx_resource_write_data(self.img_resource,
self.imgtype, self.pitch,
imgbuffer.ctypes.data,
ctypes.pointer(bmpRect))
dst_rect = c_ints((0, 0, self.w, self.h))
with self.bcmUpdate() as dispman_update:
bcm.vc_dispmanx_element_modified(dispman_update, self.img_element,
dst_rect)
def create_display(self, x=0, y=0, w=0, h=0):
self.display = openegl.eglGetDisplay(EGL_DEFAULT_DISPLAY)
assert self.display != EGL_NO_DISPLAY
r = openegl.eglInitialize(self.display, 0, 0)
#assert r == EGL_FALSE
attribute_list = c_ints((EGL_RED_SIZE, 8,
EGL_GREEN_SIZE, 8,
EGL_BLUE_SIZE, 8,
EGL_DEPTH_SIZE, 24, # TOD: use self.depth?
EGL_ALPHA_SIZE, 8,
EGL_BUFFER_SIZE, 32,
EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
EGL_NONE))
numconfig = c_int()
self.config = ctypes.c_void_p()
r = openegl.eglChooseConfig(self.display,
ctypes.byref(attribute_list),
ctypes.byref(self.config), 1,
ctypes.byref(numconfig))
context_attribs = c_ints((EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE))
self.context = openegl.eglCreateContext(self.display, self.config,
EGL_NO_CONTEXT, ctypes.byref(context_attribs) )
assert self.context != EGL_NO_CONTEXT
self.create_surface(x, y, w, h)
opengles.glDepthRangef(c_float(-1.0),c_float(1.0))
opengles.glClearColor (c_float(0.3), c_float(0.3), c_float(0.7), c_float(1.0));
opengles.glBindFramebuffer(GL_FRAMEBUFFER,0)
#Setup default hints
opengles.glEnable(GL_CULL_FACE)
opengles.glEnable(GL_NORMALIZE)
opengles.glEnable(GL_DEPTH_TEST)
opengles.glCullFace(GL_FRONT)
opengles.glHint(GL_GENERATE_MIPMAP_HINT, GL_NICEST)
# Switches off alpha blending problem with desktop - is there a bug in the
# driver?
# Thanks to Roland Humphries who sorted this one!!
opengles.glColorMask(1, 1, 1, 0)
#opengles.glEnableClientState(GL_VERTEX_ARRAY)
#opengles.glEnableClientState(GL_NORMAL_ARRAY)
self.active = True
def setImg(self, path):
img = self.loadImg(path)
bmpRect = c_ints((0, 0, self.imgw, self.imgh))
imgbuffer = numpy.array(img)
result = bcm.vc_dispmanx_resource_write_data(
self.img_resource, self.imgtype, self.pitch, imgbuffer.ctypes.data, ctypes.byref(bmpRect)
)
with self.bcmUpdate() as dispman_update:
bcm.vc_dispmanx_element_modified(dispman_update, self.img_element, ctypes.byref(self.dst_rect))
#path = "C:/Program Files (x86)/Google/Chrome/Application/42.0.2311.152"
#path = "C:\\Program Files (x86)\\Google\Chrome\\Application\\42.0.2311.135"
path = ""
""" NB this last 'same diretory' path is to check with the dll files that
have to be in the same directory as this python script (test_egl.py) i.e.
the ones I compiled (download from http://www.eldwick.org.uk/files/libEGL.zip)
or the Mozilla Firefox ones. For these latter you also need to copy over
mozglue.dll
"""
d3dcompiler = ctypes.WinDLL(os.path.join(path, "d3dcompiler_47.dll"))
opengles = ctypes.WinDLL(os.path.join(path, "libglesv2.dll"))
openegl = ctypes.WinDLL(os.path.join(path, "libegl.dll"))
attribute_lists = [c_ints((EGL_PLATFORM_ANGLE_TYPE_ANGLE, EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE,
EGL_ANGLE_DISPLAY_ALLOW_RENDER_TO_BACK_BUFFER, EGL_TRUE,
EGL_PLATFORM_ANGLE_ENABLE_AUTOMATIC_TRIM_ANGLE, EGL_TRUE,
EGL_NONE)),
c_ints((EGL_PLATFORM_ANGLE_TYPE_ANGLE, EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE,
EGL_PLATFORM_ANGLE_MAX_VERSION_MAJOR_ANGLE, 9,
EGL_PLATFORM_ANGLE_MAX_VERSION_MINOR_ANGLE, 3,
EGL_ANGLE_DISPLAY_ALLOW_RENDER_TO_BACK_BUFFER, EGL_TRUE,
EGL_PLATFORM_ANGLE_ENABLE_AUTOMATIC_TRIM_ANGLE, EGL_TRUE,
EGL_NONE)),
c_ints((EGL_PLATFORM_ANGLE_TYPE_ANGLE, EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE,
EGL_PLATFORM_ANGLE_MAX_VERSION_MAJOR_ANGLE, 9,
EGL_PLATFORM_ANGLE_MAX_VERSION_MINOR_ANGLE, 3,
EGL_NONE)),
c_ints((EGL_PLATFORM_ANGLE_TYPE_ANGLE, EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE,
EGL_PLATFORM_ANGLE_DEVICE_TYPE_ANGLE, EGL_PLATFORM_ANGLE_DEVICE_TYPE_WARP_ANGLE,
EGL_ANGLE_DISPLAY_ALLOW_RENDER_TO_BACK_BUFFER, EGL_TRUE,
EGL_PLATFORM_ANGLE_ENABLE_AUTOMATIC_TRIM_ANGLE, EGL_TRUE,
#path = "C:/Program Files (x86)/Google/Chrome/Application/42.0.2311.152"
#path = "C:\\Program Files (x86)\\Google\Chrome\\Application\\42.0.2311.135"
path = ""
""" NB this last 'same diretory' path is to check with the dll files that
have to be in the same directory as this python script (test_egl.py) i.e.
the ones I compiled (download from http://www.eldwick.org.uk/files/libEGL.zip)
or the Mozilla Firefox ones. For these latter you also need to copy over
mozglue.dll
"""
d3dcompiler = ctypes.WinDLL(os.path.join(path, "d3dcompiler_47.dll"))
opengles = ctypes.WinDLL(os.path.join(path, "libglesv2.dll"))
openegl = ctypes.WinDLL(os.path.join(path, "libegl.dll"))
attribute_lists = [
c_ints(
(EGL_PLATFORM_ANGLE_TYPE_ANGLE, EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE,
EGL_ANGLE_DISPLAY_ALLOW_RENDER_TO_BACK_BUFFER, EGL_TRUE,
EGL_PLATFORM_ANGLE_ENABLE_AUTOMATIC_TRIM_ANGLE, EGL_TRUE, EGL_NONE)),
c_ints(
(EGL_PLATFORM_ANGLE_TYPE_ANGLE, EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE,
EGL_PLATFORM_ANGLE_MAX_VERSION_MAJOR_ANGLE, 9,
EGL_PLATFORM_ANGLE_MAX_VERSION_MINOR_ANGLE, 3,
EGL_ANGLE_DISPLAY_ALLOW_RENDER_TO_BACK_BUFFER, EGL_TRUE,
EGL_PLATFORM_ANGLE_ENABLE_AUTOMATIC_TRIM_ANGLE, EGL_TRUE, EGL_NONE)),
c_ints((EGL_PLATFORM_ANGLE_TYPE_ANGLE, EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE,
EGL_PLATFORM_ANGLE_MAX_VERSION_MAJOR_ANGLE, 9,
EGL_PLATFORM_ANGLE_MAX_VERSION_MINOR_ANGLE, 3, EGL_NONE)),
c_ints(
(EGL_PLATFORM_ANGLE_TYPE_ANGLE, EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE,
EGL_PLATFORM_ANGLE_DEVICE_TYPE_ANGLE,
EGL_PLATFORM_ANGLE_DEVICE_TYPE_WARP_ANGLE,
EGL_ANGLE_DISPLAY_ALLOW_RENDER_TO_BACK_BUFFER, EGL_TRUE,
def create_display(self,
x=0,
y=0,
w=0,
h=0,
depth=24,
samples=4,
layer=0,
display_config=DISPLAY_CONFIG_DEFAULT,
window_title=''):
self.display = openegl.eglGetDisplay(EGL_DEFAULT_DISPLAY)
assert self.display != EGL_NO_DISPLAY and self.display is not None
self.display_config = display_config
self.window_title = window_title.encode()
for smpl in [
samples, 0
]: # try with samples first but ANGLE dll can't cope so drop to 0 for windows
r = openegl.eglInitialize(self.display, None, None)
attribute_list = c_ints(
(EGL_RED_SIZE, 8, EGL_GREEN_SIZE, 8, EGL_BLUE_SIZE, 8,
EGL_DEPTH_SIZE, depth, EGL_ALPHA_SIZE, 8, EGL_BUFFER_SIZE, 32,
EGL_SAMPLES, smpl, EGL_STENCIL_SIZE, 8, EGL_SURFACE_TYPE,
EGL_WINDOW_BIT, EGL_NONE))
numconfig = c_int()
self.config = ctypes.c_void_p()
r = openegl.eglChooseConfig(self.display, attribute_list,
ctypes.byref(self.config), 1,
ctypes.byref(numconfig))
context_attribs = c_ints((EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE))
self.context = openegl.eglCreateContext(self.display, self.config,
EGL_NO_CONTEXT,
context_attribs)
if self.context != EGL_NO_CONTEXT:
break
assert self.context != EGL_NO_CONTEXT and self.context is not None
self.create_surface(x, y, w, h, layer)
opengles.glDepthRangef(GLfloat(0.0), GLfloat(1.0))
opengles.glClearColor(GLfloat(0.3), GLfloat(0.3), GLfloat(0.7),
GLfloat(1.0))
opengles.glBindFramebuffer(GL_FRAMEBUFFER, GLuint(0))
#Setup default hints
opengles.glEnable(GL_CULL_FACE)
opengles.glCullFace(GL_BACK)
opengles.glFrontFace(GL_CW)
opengles.glEnable(GL_DEPTH_TEST)
opengles.glEnable(GL_PROGRAM_POINT_SIZE)
opengles.glEnable(GL_POINT_SPRITE)
opengles.glDepthFunc(GL_LESS)
opengles.glDepthMask(GLboolean(True))
opengles.glHint(GL_GENERATE_MIPMAP_HINT, GL_NICEST)
opengles.glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, 1,
GL_ONE_MINUS_SRC_ALPHA)
# Switches off alpha blending problem with desktop - is there a bug in the
# driver?
# Thanks to Roland Humphries who sorted this one!!
opengles.glColorMask(GLboolean(True), GLboolean(True), GLboolean(True),
GLboolean(False))
#opengles.glEnableClientState(GL_VERTEX_ARRAY)
#opengles.glEnableClientState(GL_NORMAL_ARRAY)
self.active = True
def create_surface(self, x=0, y=0, w=0, h=0):
# Set the viewport position and size
dst_rect = c_ints((x, y, w, h))
src_rect = c_ints((x, y, w << 16, h << 16))
if PLATFORM == PLATFORM_ANDROID:
self.surface = openegl.eglGetCurrentSurface(EGL_DRAW)
# Get the width and height of the screen - TODO, this system returns 100x100
time.sleep(0.2) # give it a chance to find out the dimensions
w = c_int()
h = c_int()
openegl.eglQuerySurface(self.display, self.surface, EGL_WIDTH, ctypes.byref(w))
openegl.eglQuerySurface(self.display, self.surface, EGL_HEIGHT, ctypes.byref(h))
self.width, self.height = w.value, h.value
elif PLATFORM == PLATFORM_PI:
self.dispman_display = bcm.vc_dispmanx_display_open(0) # LCD setting
self.dispman_update = bcm.vc_dispmanx_update_start(0)
self.dispman_element = bcm.vc_dispmanx_element_add(
self.dispman_update,
self.dispman_display,
0,
ctypes.byref(dst_rect),
0,
ctypes.byref(src_rect),
DISPMANX_PROTECTION_NONE,
0,
0,
0,
)
nativewindow = c_ints((self.dispman_element, w, h + 1))
bcm.vc_dispmanx_update_submit_sync(self.dispman_update)
nw_p = ctypes.pointer(nativewindow)
self.nw_p = nw_p
self.surface = openegl.eglCreateWindowSurface(self.display, self.config, self.nw_p, 0)
elif pi3d.USE_PYGAME:
import pygame
flags = pygame.RESIZABLE | pygame.OPENGL
wsize = (w, h)
if w == self.width and h == self.height: # i.e. full screen
flags = pygame.FULLSCREEN | pygame.OPENGL
wsize = (0, 0)
self.width, self.height = w, h
self.d = pygame.display.set_mode(wsize, flags)
self.window = pygame.display.get_wm_info()["window"]
self.surface = openegl.eglCreateWindowSurface(self.display, self.config, self.window, 0)
else:
self.width, self.height = w, h
# Set some WM info
root = xlib.XRootWindowOfScreen(self.screen)
self.window = xlib.XCreateSimpleWindow(self.d, root, x, y, w, h, 1, 0, 0)
s = ctypes.create_string_buffer(b"WM_DELETE_WINDOW")
self.WM_DELETE_WINDOW = ctypes.c_ulong(xlib.XInternAtom(self.d, s, 0))
# TODO add functions to xlib for these window manager libx11 functions
# self.window.set_wm_name('pi3d xlib window')
# self.window.set_wm_icon_name('pi3d')
# self.window.set_wm_class('draw', 'XlibExample')
xlib.XSetWMProtocols(self.d, self.window, ctypes.byref(self.WM_DELETE_WINDOW), 1)
# self.window.set_wm_hints(flags = Xutil.StateHint,
# initial_state = Xutil.NormalState)
# self.window.set_wm_normal_hints(flags = (Xutil.PPosition | Xutil.PSize
# | Xutil.PMinSize),
# min_width = 20,
# min_height = 20)
xlib.XSelectInput(self.d, self.window, KeyPressMask)
xlib.XMapWindow(self.d, self.window)
self.surface = openegl.eglCreateWindowSurface(self.display, self.config, self.window, 0)
assert self.surface != EGL_NO_SURFACE
r = openegl.eglMakeCurrent(self.display, self.surface, self.surface, self.context)
assert r
# Create viewport
opengles.glViewport(0, 0, w, h)
def create_surface(self, x=0, y=0, w=0, h=0, layer=0):
#Set the viewport position and size
dst_rect = c_ints((x, y, w, h))
src_rect = c_ints((x, y, w << 16, h << 16))
if PLATFORM == PLATFORM_ANDROID:
self.surface = openegl.eglGetCurrentSurface(EGL_DRAW)
# Get the width and height of the screen - TODO, this system returns 100x100
time.sleep(0.2) #give it a chance to find out the dimensions
w = c_int()
h = c_int()
openegl.eglQuerySurface(self.display, self.surface, EGL_WIDTH,
ctypes.byref(w))
openegl.eglQuerySurface(self.display, self.surface, EGL_HEIGHT,
ctypes.byref(h))
self.width, self.height = w.value, h.value
elif PLATFORM == PLATFORM_PI:
self.dispman_display = bcm.vc_dispmanx_display_open(
0) #LCD setting
self.dispman_update = bcm.vc_dispmanx_update_start(0)
self.dispman_element = bcm.vc_dispmanx_element_add(
self.dispman_update, self.dispman_display, layer,
ctypes.byref(dst_rect), 0, ctypes.byref(src_rect),
DISPMANX_PROTECTION_NONE, 0, 0, 0)
nativewindow = c_ints((self.dispman_element, w, h + 1))
bcm.vc_dispmanx_update_submit_sync(self.dispman_update)
nw_p = ctypes.pointer(nativewindow)
self.nw_p = nw_p
self.surface = openegl.eglCreateWindowSurface(
self.display, self.config, self.nw_p, 0)
elif pi3d.USE_PYGAME:
import pygame
flags = pygame.OPENGL
wsize = (w, h)
if w == self.width and h == self.height: # i.e. full screen
flags = pygame.FULLSCREEN | pygame.OPENGL
wsize = (0, 0)
if self.display_config & DISPLAY_CONFIG_NO_RESIZE:
flags |= pygame.RESIZABLE
if self.display_config & DISPLAY_CONFIG_NO_FRAME:
flags |= pygame.NOFRAME
if self.display_config & DISPLAY_CONFIG_FULLSCREEN:
flags |= pygame.FULLSCREEN
elif self.display_config & DISPLAY_CONFIG_MAXIMIZED:
flags |= pygame.FULLSCREEN
wsize = (0, 0)
self.width, self.height = w, h
self.d = pygame.display.set_mode(wsize, flags)
self.window = pygame.display.get_wm_info()["window"]
self.surface = openegl.eglCreateWindowSurface(
self.display, self.config, self.window, 0)
else:
self.width, self.height = w, h
# Set some WM info
root = xlib.XRootWindowOfScreen(self.screen)
self.window = xlib.XCreateSimpleWindow(self.d, root, x, y, w, h, 1,
0, 0)
s = ctypes.create_string_buffer(b'WM_DELETE_WINDOW')
self.WM_DELETE_WINDOW = ctypes.c_ulong(
xlib.XInternAtom(self.d, s, 0))
#TODO add functions to xlib for these window manager libx11 functions
#self.window.set_wm_name('pi3d xlib window')
#self.window.set_wm_icon_name('pi3d')
#self.window.set_wm_class('draw', 'XlibExample')
xlib.XSetWMProtocols(self.d, self.window,
ctypes.byref(self.WM_DELETE_WINDOW), 1)
#self.window.set_wm_hints(flags = Xutil.StateHint,
# initial_state = Xutil.NormalState)
#self.window.set_wm_normal_hints(flags = (Xutil.PPosition | Xutil.PSize
# | Xutil.PMinSize),
# min_width = 20,
# min_height = 20)
xlib.XSelectInput(self.d, self.window,
KeyPressMask | KeyReleaseMask)
xlib.XMapWindow(self.d, self.window)
self.surface = openegl.eglCreateWindowSurface(
self.display, self.config, self.window, 0)
assert self.surface != EGL_NO_SURFACE
r = openegl.eglMakeCurrent(self.display, self.surface, self.surface,
self.context)
assert r
#Create viewport
opengles.glViewport(0, 0, w, h)
def _unload_opengl(self):
"""clear it out"""
texture_array = c_ints([self._tex.value])
opengles.glDeleteTextures(1, ctypes.addressof(texture_array))
def create_surface(self, x=0, y=0, w=0, h=0, layer=0):
#Set the viewport position and size
dst_rect = c_ints((x, y, w, h))
src_rect = c_ints((x, y, w << 16, h << 16))
if PLATFORM == PLATFORM_ANDROID:
self.surface = openegl.eglGetCurrentSurface(EGL_DRAW)
# Get the width and height of the screen - TODO, this system returns 100x100
time.sleep(0.2) #give it a chance to find out the dimensions
w = c_int()
h = c_int()
openegl.eglQuerySurface(self.display, self.surface, EGL_WIDTH,
byref(w))
openegl.eglQuerySurface(self.display, self.surface, EGL_HEIGHT,
byref(h))
self.width, self.height = w.value, h.value
elif PLATFORM == PLATFORM_PI:
self.dispman_display = bcm.vc_dispmanx_display_open(
0) #LCD setting
self.dispman_update = bcm.vc_dispmanx_update_start(0)
alpha = c_ints((DISPMANX_FLAGS_ALPHA_PREMULT, 0, 0))
self.dispman_element = bcm.vc_dispmanx_element_add(
self.dispman_update, self.dispman_display, layer, dst_rect, 0,
src_rect, DISPMANX_PROTECTION_NONE, alpha, 0, 0)
nativewindow = (GLint * 3)(self.dispman_element, w, h + 1)
bcm.vc_dispmanx_update_submit_sync(self.dispman_update)
self.nw_p = ctypes.pointer(nativewindow)
### NB changing the argtypes to allow passing of bcm native window is
### deeply unsatisfactory. But xlib defines Window as c_ulong and ctypes
### isn't happy about a pointer being cast to an int
openegl.eglCreateWindowSurface.argtypes = [
EGLDisplay, EGLConfig,
POINTER((GLint * 3)), EGLint
]
self.surface = openegl.eglCreateWindowSurface(
self.display, self.config, self.nw_p, 0)
elif pi3d.USE_PYGAME:
import pygame
flags = pygame.OPENGL
wsize = (w, h)
if w == self.width and h == self.height: # i.e. full screen
flags = pygame.FULLSCREEN | pygame.OPENGL
wsize = (0, 0)
if self.display_config & DISPLAY_CONFIG_NO_RESIZE:
flags |= pygame.RESIZABLE
if self.display_config & DISPLAY_CONFIG_NO_FRAME:
flags |= pygame.NOFRAME
if self.display_config & DISPLAY_CONFIG_FULLSCREEN:
flags |= pygame.FULLSCREEN
elif self.display_config & DISPLAY_CONFIG_MAXIMIZED:
flags |= pygame.FULLSCREEN
wsize = (0, 0)
self.width, self.height = w, h
self.d = pygame.display.set_mode(wsize, flags)
self.window = pygame.display.get_wm_info()["window"]
self.surface = openegl.eglCreateWindowSurface(
self.display, self.config, self.window, 0)
else: # work on basis it's X11
# Set some WM info
self.root = xlib.XRootWindowOfScreen(self.screen)
if self.use_glx: # For drawing on X window with transparent background
numfbconfigs = c_int()
VisData = c_ints(
(glx.GLX_RENDER_TYPE, glx.GLX_RGBA_BIT,
glx.GLX_DRAWABLE_TYPE, glx.GLX_WINDOW_BIT,
glx.GLX_DOUBLEBUFFER, True, glx.GLX_RED_SIZE, 8,
glx.GLX_GREEN_SIZE, 8, glx.GLX_BLUE_SIZE, 8,
glx.GLX_ALPHA_SIZE, 8, glx.GLX_DEPTH_SIZE, 16, 0))
glx_screen = xlib.XDefaultScreen(self.d)
fbconfigs = glx.glXChooseFBConfig(self.d, glx_screen, VisData,
byref(numfbconfigs))
fbconfig = 0
for i in range(numfbconfigs.value):
visual = glx.glXGetVisualFromFBConfig(
self.d, fbconfigs[i]).contents
if not visual:
continue
pict_format = glx.XRenderFindVisualFormat(
self.d, visual.visual).contents
if not pict_format:
continue
fbconfig = fbconfigs[i]
if pict_format.direct.alphaMask > 0:
break
if not fbconfig:
print("No matching FB config found")
#/* Create a colormap - only needed on some X clients, eg. IRIX */
cmap = xlib.XCreateColormap(self.d, self.root, visual.visual,
AllocNone)
attr = xlib.XSetWindowAttributes()
attr.colormap = cmap
attr.background_pixmap = 0
attr.border_pixmap = 0
attr.border_pixel = 0
attr.event_mask = (StructureNotifyMask | EnterWindowMask
| LeaveWindowMask | ExposureMask
| ButtonPressMask | ButtonReleaseMask
| OwnerGrabButtonMask | KeyPressMask
| KeyReleaseMask)
attr_mask = ( # CWBackPixmap|
CWColormap | CWBorderPixel | CWEventMask)
self.window = xlib.XCreateWindow(self.d, self.root, x, y, w, h,
0, visual.depth, 1,
visual.visual, attr_mask,
byref(attr))
else: # normal EGL created context
self.window = xlib.XCreateSimpleWindow(self.d, self.root, x, y,
w, h, 1, 0, 0)
s = ctypes.create_string_buffer(b'WM_DELETE_WINDOW')
self.WM_DELETE_WINDOW = ctypes.c_ulong(
xlib.XInternAtom(self.d, s, 0))
# set window title
title = ctypes.c_char_p(self.window_title)
title_length = ctypes.c_int(len(self.window_title))
wm_name_atom = ctypes.c_ulong(
xlib.XInternAtom(self.d,
ctypes.create_string_buffer(b'WM_NAME'), 0))
string_atom = ctypes.c_ulong(
xlib.XInternAtom(self.d,
ctypes.create_string_buffer(b'STRING'), 0))
xlib.XChangeProperty(self.d, self.window, wm_name_atom,
string_atom, 8, xlib.PropModeReplace, title,
title_length)
if (w == self.width
and h == self.height) or (self.display_config
& DISPLAY_CONFIG_FULLSCREEN):
# set full-screen. Messy c function calls!
wm_state = ctypes.c_ulong(
xlib.XInternAtom(self.d, b'_NET_WM_STATE', 0))
fullscreen = ctypes.c_ulong(
xlib.XInternAtom(self.d, b'_NET_WM_STATE_FULLSCREEN', 0))
fullscreen = ctypes.cast(ctypes.pointer(fullscreen),
ctypes.c_char_p)
XA_ATOM = 4
xlib.XChangeProperty(self.d, self.window, wm_state, XA_ATOM,
32, xlib.PropModeReplace, fullscreen, 1)
self.width, self.height = w, h
if self.display_config & DISPLAY_CONFIG_HIDE_CURSOR:
black = xlib.XColor()
black.red = 0
black.green = 0
black.blue = 0
noData = ctypes.c_char_p(bytes([0, 0, 0, 0, 0, 0, 0, 0]))
bitmapNoData = xlib.XCreateBitmapFromData(
self.d, self.window, noData, 8, 8)
invisibleCursor = xlib.XCreatePixmapCursor(
self.d, bitmapNoData, bitmapNoData, black, black, 0, 0)
xlib.XDefineCursor(self.d, self.window, invisibleCursor)
#TODO add functions to xlib for these window manager libx11 functions
#self.window.set_wm_name('pi3d xlib window')
#self.window.set_wm_icon_name('pi3d')
#self.window.set_wm_class('draw', 'XlibExample')
xlib.XSetWMProtocols(self.d, self.window, self.WM_DELETE_WINDOW, 1)
#self.window.set_wm_hints(flags = Xutil.StateHint,
# initial_state = Xutil.NormalState)
#self.window.set_wm_normal_hints(flags = (Xutil.PPosition | Xutil.PSize
# | Xutil.PMinSize),
# min_width = 20,
# min_height = 20)
xlib.XSelectInput(
self.d, self.window,
KeyPressMask | KeyReleaseMask | ResizeRedirectMask)
xlib.XMapWindow(self.d, self.window)
#xlib.XMoveWindow(self.d, self.window, x, y) #TODO this has to happen later. Works after rendering first frame. Check when
if self.use_glx:
dummy = c_int()
if not glx.glXQueryExtension(self.d, byref(dummy),
byref(dummy)):
print("OpenGL not supported by X server\n")
dummy_glx_context = ctypes.cast(0, glx.GLXContext)
self.render_context = glx.glXCreateNewContext(
self.d, fbconfig, glx.GLX_RGBA_TYPE, dummy_glx_context,
True)
if not self.render_context:
print("Failed to create a GL context\n")
if not glx.glXMakeContextCurrent(
self.d, self.window, self.window, self.render_context):
print("glXMakeCurrent failed for window\n")
else:
self.surface = openegl.eglCreateWindowSurface(
self.display, self.config, self.window, 0)
if not self.use_glx:
assert self.surface != EGL_NO_SURFACE and self.surface is not None
r = openegl.eglMakeCurrent(self.display, self.surface,
self.surface, self.context)
assert r
#Create viewport
opengles.glViewport(GLint(0), GLint(0), GLsizei(w), GLsizei(h))
def _unload_opengl(self): """clear it out""" texture_array = c_ints([self._tex.value]) opengles.glDeleteTextures(1, ctypes.addressof(texture_array))