def draw_textures(self, BoundingBox=None, glFunc=None):
self.setup_composite_rendering()
glFunc = gl.GL_FUNC_ADD
if not self.FixedImageArray is None:
FixedColor = None
if (glFunc == gl.GL_FUNC_ADD):
FixedColor = (1.0, 0.0, 1.0, 1)
self.DrawFixedImage(self.FixedImageArray,
FixedColor,
BoundingBox=BoundingBox,
z=0.25)
if not self.WarpedImageArray is None:
WarpedColor = None
if (glFunc == gl.GL_FUNC_ADD):
gl.glBlendEquation(glFunc)
WarpedColor = (0, 1.0, 0, 1)
self.DrawWarpedImage(self.WarpedImageArray,
tex_color=WarpedColor,
BoundingBox=BoundingBox,
z=0.75,
glFunc=glFunc)
self.clear_composite_rendering()
def on_draw(self):
"""Redraw the current image."""
# the pyglet.window docs specify:
# > The window will already have the GL context, so there is no need to
# > call `.switch_to`. The window’s `.flip` method will be called after
# > this event, so your event handler should not.
# self.switch_to()
# gl.glClearColor(0, 0, 0, 0)
self.clear()
if hasattr(self, 'texture'):
# do not interpolate when resizing textures
gl.glTexParameteri(gl.GL_TEXTURE_2D, gl.GL_TEXTURE_MAG_FILTER,
gl.GL_NEAREST)
# textures with alpha channels require gl blending capability
gl.glEnable(gl.GL_BLEND)
# Additive blending `R = S * F_s + D * F_d` for `c4f` f-RGBA
gl.glBlendEquation(gl.GL_FUNC_ADD)
# Factors `F_s = S_a` and `F_d = 1 - S_a` give transparency fx,
# >>> gl.glBlendFunc(gl.GL_SRC_ALPHA, gl.GL_ONE_MINUS_SRC_ALPHA)
# but we set `F_s = 1.` and `F_d = 0.` for complete overwrite.
# see https://learnopengl.com/Advanced-OpenGL/Blending
# and https://www.khronos.org/opengl/wiki/Blending
# and https://stackoverflow.com/a/18497511 (for opacity eqn)
gl.glBlendFunc(gl.GL_ONE, gl.GL_ZERO)
# draw the image data into the window's buffer as a texture
# blit transforms the texture data only virtually: the texture's
# `.width` and `.height` dims still retain original array's shape.
self.texture.blit(0, 0, width=self.width, height=self.height)
def _draw_veils(self):
triangles = []
colors = []
self._veil_lines = []
for veil in self.state.current_page.veils:
if (not veil['covered'] and
(not self.state.is_master or
not self.show_veils)): continue
minx, miny = self.map_to_screen(veil['minx'], veil['miny'])
maxx, maxy = self.map_to_screen(veil['maxx'], veil['maxy'])
if (minx >= self.pane.x1 or maxx <= self.pane.x0 or
miny >= self.pane.y1 or maxy <= self.pane.y0):
continue
clamp_x0 = max(self.pane.x0, minx)
clamp_y0 = max(self.pane.y0, miny)
clamp_x1 = min(self.pane.x1, maxx)
clamp_y1 = min(self.pane.y1, maxy)
triangles.extend([
clamp_x0, clamp_y0, clamp_x1, clamp_y0, clamp_x1, clamp_y1,
clamp_x0, clamp_y1, clamp_x0, clamp_y0, clamp_x1, clamp_y1
])
if self.state.is_master:
if veil['covered']:
if self.show_veils:
colors.extend([128] * 18)
else:
colors.extend([64] * 18)
else:
colors.extend([64] * 18)
if self.show_veils:
for x0, y0, x1, y1 in (
(clamp_x0, clamp_y0, clamp_x1, clamp_y0),
(clamp_x1, clamp_y0, clamp_x1, clamp_y1),
(clamp_x1, clamp_y1, clamp_x0, clamp_y1),
(clamp_x0, clamp_y1, clamp_x0, clamp_y0)
):
if not (x0 <= self.pane.x0 and x1 <= self.pane.x0 or
x0 >= self.pane.x1 and x1 >= self.pane.x1 or
y0 <= self.pane.y0 and y1 <= self.pane.y0 or
y1 >= self.pane.y1 and y1 >= self.pane.y1):
self._veil_lines.extend([x0, y0, x1, y1])
else:
colors.extend([255] * 18)
gl.glEnable(gl.GL_BLEND)
gl.glBlendFunc(gl.GL_ONE, gl.GL_ONE)
gl.glBlendEquation(gl.GL_FUNC_REVERSE_SUBTRACT)
pyglet.graphics.draw(len(triangles) // 2, gl.GL_TRIANGLES,
('v2f', triangles),
('c3B', colors))
gl.glDisable(gl.GL_BLEND)
gl.glBlendEquation(gl.GL_FUNC_ADD)
def DrawTextureWithBuffers(texture, vertarray, buffers, verts, color=None, glFunc=gl.GL_FUNC_ADD):
if color is None:
color = (1.0,1.0,1.0,1.0)
gl.glBlendEquation(glFunc)
gl.glBindTexture(gl.GL_TEXTURE_2D, texture)
pyglet.gl.glColor4f(color[0], color[1], color[2], color[3])
# pyglet.graphics.draw_indexed(len(vertarray) / 3,
# gl.GL_TRIANGLES,
# verts.tolist(),
# ('v3f', vertarray),
# ('t2f', texarray))
draw_indexed_from_buffer(len(vertarray) / 3,
gl.GL_TRIANGLES,
verts.tolist(),
buffers)
def draw_textures(self, BoundingBox=None, glFunc=None):
self.setup_composite_rendering()
glFunc = gl.GL_FUNC_ADD
if not self.FixedImageArray is None:
FixedColor = None
if(glFunc == gl.GL_FUNC_ADD):
FixedColor = (1.0, 0.0, 1.0, 1)
self.DrawFixedImage(self.FixedImageArray, FixedColor, BoundingBox=BoundingBox, z=0.25)
if not self.WarpedImageArray is None:
WarpedColor = None
if(glFunc == gl.GL_FUNC_ADD):
gl.glBlendEquation(glFunc)
WarpedColor = (0, 1.0, 0, 1)
self.DrawWarpedImage(self.WarpedImageArray, tex_color=WarpedColor, BoundingBox=BoundingBox, z=0.75, glFunc=glFunc)
self.clear_composite_rendering()
def DrawTextureWithBuffers(texture,
vertarray,
buffers,
verts,
color=None,
glFunc=gl.GL_FUNC_ADD):
if color is None:
color = (1.0, 1.0, 1.0, 1.0)
gl.glBlendEquation(glFunc)
gl.glBindTexture(gl.GL_TEXTURE_2D, texture)
pyglet.gl.glColor4f(color[0], color[1], color[2], color[3])
# pyglet.graphics.draw_indexed(len(vertarray) / 3,
# gl.GL_TRIANGLES,
# verts.tolist(),
# ('v3f', vertarray),
# ('t2f', texarray))
draw_indexed_from_buffer(
len(vertarray) / 3, gl.GL_TRIANGLES, verts.tolist(), buffers)
def ClearDrawTextureState():
'''Reset the GL device from drawing textures'''
gl.glBlendEquation(gl.GL_FUNC_ADD)
pyglet.gl.glColor4f(1.0, 1.0, 1.0, 1.0)
gl.glDisable(gl.GL_BLEND)
def main(level_file):
clock = events.dispatcher('Clock')
keyboard = events.dispatcher('Keyboard')
pygame.init()
pygame.display.gl_set_attribute(pygame.GL_ALPHA_SIZE, 8)
pygame.display.set_mode((1000, 600), pygame.OPENGL | pygame.DOUBLEBUF | pygame.RESIZABLE)
handle_resize(1000, 600)
screen_center = (500, 300)
camera_offset = 230
gl.glEnable(gl.GL_TEXTURE_2D)
gl.glEnable(gl.GL_BLEND)
gl.glBlendEquation(gl.GL_FUNC_ADD)
gl.glBlendFunc(gl.GL_SRC_ALPHA, gl.GL_ONE_MINUS_SRC_ALPHA)
gl.glClearColor(0, 0, 0, 1)
tick_event = pygame.event.Event(constants.TICK)
datadir = find_datadir()
loader = pyglet.resource.Loader(datadir)
player1 = viking(datadir, clock, keyboard,
pygame.K_a, pygame.K_d, pygame.K_w, pygame.K_j)
player2 = viking(datadir, clock, keyboard,
pygame.K_LEFT, pygame.K_RIGHT, pygame.K_UP, pygame.K_RETURN)
player2.location[0] = 900
entities = [player1, player2]
scream = pygame.mixer.Sound(os.path.join(datadir, 'wilhelm.wav'))
background = load_sprite(datadir, 'background')
backgroundbuf = GLBuffer(4 * 4, numpy.float32, gl.GL_STATIC_DRAW)
backgroundbuf[:] = background.xyuv
if level_file is None:
walls = [components.hitbox((-5, -5), (10, 610)),
components.hitbox((995, -5), (10, 610)),
components.hitbox((-5, 595), (1010, 5)), ]
else:
walls = level.load(level_file)
for w in walls:
numpy.round(w.point, out=w.point)
numpy.round(w.size, out=w.size)
walls_tlbr = numpy.empty((2, len(walls), 2))
walls_tlbr[0] = [w.point for w in walls]
walls_tlbr[1] = [w.point + w.size for w in walls]
# vertex positions for walls
quads = numpy.empty((len(walls), 4, 2), dtype=numpy.float32)
quads[:, 0, :] = [w.point for w in walls]
quads[:, 2, :] = [w.size for w in walls]
quads[:, 2, :] += quads[:, 0, :]
quads[:, 1, 0] = quads[:, 0, 0]
quads[:, 1, 1] = quads[:, 2, 1]
quads[:, 3, 0] = quads[:, 2, 0]
quads[:, 3, 1] = quads[:, 0, 1]
wallbuf = GLBuffer(quads.size, numpy.float32, gl.GL_STATIC_DRAW)
wallbuf[:] = quads
del quads
# contains vertex and texture positions for sprites
entitybuf = GLBuffer(dtype=numpy.float32)
# walls program
wallprog = shaders.wall()
spriteprog = shaders.sprite()
dragonprog = shaders.psycho()
dragonpalette = load_texture(os.path.join(datadir, 'wallpalette.png'), dimensions=1)
dragonsprite_scales = load_sprite(datadir, 'dragon_scales')
dragonsprite_contours = load_sprite(datadir, 'dragon_contours')
dragonbuf = GLBuffer(4 * 4, numpy.float32, gl.GL_STATIC_DRAW)
dragonbuf[:] = dragonsprite_scales.xyuv + (-100, 145, 0, 0)
contourbuf = GLBuffer(4 * 4, numpy.float32, gl.GL_STATIC_DRAW)
contourbuf[:] = dragonsprite_contours.xyuv + (-100, 145, 0, 0)
debug_draw = False
pause = False
do_frame = False
ticks_done = 0
while True:
start = time.clock()
key_events = []
resize_event = None
for event in pygame.event.get():
if event.type == pygame.QUIT:
return 0
elif event.type == pygame.KEYDOWN or event.type == pygame.KEYUP:
key_events.append(event)
elif event.type == pygame.VIDEORESIZE:
resize_event = event
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_ESCAPE:
return 0
if event.key == pygame.K_F2:
debug_draw = not debug_draw
elif event.key == pygame.K_F3:
entities.append(sheep(datadir, clock))
elif event.key == pygame.K_F4:
entities.append(drake(datadir, clock))
elif event.key == pygame.K_F5:
entities.append(floaty_sheep(datadir, clock))
elif event.key == pygame.K_p:
pause = not pause
elif event.key == pygame.K_PERIOD and pause:
do_frame = True
if resize_event:
handle_resize(resize_event.w, resize_event.h)
screen_center = (resize_event.w // 2, resize_event.h // 2)
background.xyuv[:, :2] = [[0, 0], [0, resize_event.h],
[resize_event.w, resize_event.h], [resize_event.w, 0]]
backgroundbuf[:] = background.xyuv
if (not pause) or do_frame:
for event in key_events:
keyboard.dispatch(event)
location = components.entity.location
delta = numpy.array(location)
motion_a = components.entity.motion_a
motion_v = components.entity.motion_v
active_tl = components.entity.active_tl
active_br = components.entity.active_br
passive_tl = components.entity.passive_tl
passive_br = components.entity.passive_br
instances = components.entity._all[:components.entity._nentities]
do_translate = components.entity.translate_all
GROUNDED = intern('grounded')
motion_a[:] = (0, constants.G)
clock.dispatch(tick_event)
for thing in entities:
thing.tags.discard(GROUNDED)
motion_v[:] += motion_a
collisions.resolve_passive_active_collisions(instances, active_tl, active_br, passive_tl, passive_br)
attempts = 0
adjust_significant = True
rppc = collisions.resolve_passive_passive_collisions
rwc = collisions.resolve_wall_collisions
grounded_mask = numpy.zeros((len(instances),), dtype=bool)
stop = numpy.empty((len(instances),2), dtype=bool)
adjust, sides = rwc(motion_v, passive_tl, passive_br, walls_tlbr[0], walls_tlbr[1])
numpy.logical_or.reduce(sides.reshape(-1, 2, 2), out=stop, axis=2)
motion_v[stop] = 0
do_translate(motion_v[:])
while attempts < 20 and adjust_significant:
adjust, sides, done_impulse = rppc(motion_v, passive_tl, passive_br)
grounded_mask |= sides[:,3]
adjust *= 0.5
do_translate(adjust)
adjust_significant = not numpy.allclose(adjust, 0, atol=0.125)
adjust_significant |= done_impulse > 0.125
del adjust, sides
adjust, sides = rwc(motion_v, passive_tl, passive_br, walls_tlbr[0], walls_tlbr[1])
adjust_significant |= not numpy.allclose(adjust, 0, atol=0.5)
do_translate(adjust)
numpy.logical_or.reduce(sides.reshape(-1, 2, 2), out=stop, axis=2)
motion_v[stop] = 0
grounded_mask |= sides[:,3]
attempts += 1
for thing in numpy.compress(grounded_mask, instances):
thing.tags.add(GROUNDED)
do_frame = False
ticks_done += 1
dead = []
gl.glLoadIdentity()
gl.glEnableVertexAttribArray(0)
gl.glUseProgram(spriteprog.id)
gl.glBindTexture(gl.GL_TEXTURE_2D, background.texid)
spriteprog['texture'] = 0
with backgroundbuf.bound:
gl.glVertexAttribPointer(0, 4, gl.GL_FLOAT, gl.GL_FALSE, 0, 0)
gl.glDrawArrays(gl.GL_TRIANGLE_FAN, 0, 4)
# Now move camera
camera_location = (screen_center - numpy.round(entities[0].location)) + (0, camera_offset)
gl.glTranslated(camera_location[0], camera_location[1], 0.0)
for thing in entities:
if thing.hitpoints <= 0 or thing.location[1] > 10000:
dead.append(thing)
continue
for thing in dead:
scream.play()
if thing.name == 'Player':
thing.hitpoints = 100
thing.location[:] = (500, -10)
thing.motion_v[:] = 0
if thing.physics is not None:
thing.physics.last_position[:] = thing.location
else:
entities.remove(thing)
thing.dispose()
xyuv = numpy.empty((4, 4), dtype=numpy.float32)
texid = [0] * len(entities)
with entitybuf.bound:
for n, thing in enumerate(entities):
xyuv[:] = thing.graphics.sprite.xyuv
xy = xyuv[:, 0:2]
xy[:] += thing.graphics.anchor
xy[:] += thing.location
numpy.round(xy, out=xy)
offset = n * 16
entitybuf[offset:] = xyuv
texid[n] = thing.graphics.sprite.texid
#print('Loaded data for entity', n, xyuv, 'texid', texid[n])
gl.glVertexAttribPointer(0, 4, gl.GL_FLOAT, gl.GL_FALSE, 0, 0)
for n, t in enumerate(texid):
gl.glBindTexture(gl.GL_TEXTURE_2D, t)
gl.glDrawArrays(gl.GL_TRIANGLE_FAN, n * 4, 4)
# draw walls
gl.glUseProgram(wallprog.id)
wallprog['color'] = (162.0/255.0, 153.0/255.0, 118.0/255.0, 1.0)
with wallbuf.bound:
gl.glVertexAttribPointer(0, 2, gl.GL_FLOAT, gl.GL_FALSE, 0, 0)
gl.glDrawArrays(gl.GL_QUADS, 0, len(walls) * 8)
# draw some shaders
gl.glUseProgram(dragonprog.id)
gl.glBindTexture(gl.GL_TEXTURE_2D, dragonsprite_scales.texid)
gl.glActiveTexture(gl.GL_TEXTURE0 + 1)
gl.glBindTexture(gl.GL_TEXTURE_1D, dragonpalette)
gl.glActiveTexture(gl.GL_TEXTURE0)
dragonprog['texture'] = 0
dragonprog['palette'] = 1
dragonprog['perturb'] = (ticks_done % 1024) / 128
dragonprog['shift'] = ticks_done / 600
with dragonbuf.bound:
gl.glVertexAttribPointer(0, 4, gl.GL_FLOAT, gl.GL_FALSE, 0, 0)
gl.glDrawArrays(gl.GL_TRIANGLE_FAN, 0, 4)
# now draw the rest of the f****n' dragon
gl.glUseProgram(spriteprog.id)
gl.glBindTexture(gl.GL_TEXTURE_2D, dragonsprite_contours.texid)
spriteprog['texture'] = 0
with contourbuf.bound:
gl.glVertexAttribPointer(0, 4, gl.GL_FLOAT, gl.GL_FALSE, 0, 0)
gl.glDrawArrays(gl.GL_TRIANGLE_FAN, 0, 4)
if debug_draw:
gl.glUseProgram(wallprog.id)
wallprog['color'] = (0.89, 0.89, 0.89, 1.0)
quads = numpy.zeros((len(entities), 4, 2), dtype=numpy.float32)
quads[:, 0, :] = components.entity.passive_tl
quads[:, 2, :] = components.entity.passive_br
quads[:, 1, 0] = quads[:, 0, 0]
quads[:, 1, 1] = quads[:, 2, 1]
quads[:, 3, 0] = quads[:, 2, 0]
quads[:, 3, 1] = quads[:, 0, 1]
gl.glVertexAttribPointer(0, 2, gl.GL_FLOAT, gl.GL_FALSE, 0, quads.ctypes.data)
gl.glDrawArrays(gl.GL_QUADS, 0, quads.size // 2)
gl.glColor3f(1, 1, 1)
gl.glEnable(gl.GL_TEXTURE_2D)
#screen.fill((120, 50, 50), pygame.Rect(0, 10, player1.hitpoints * 2, 10))
#screen.fill((120, 50, 50), pygame.Rect(1000 - player2.hitpoints * 2, 10, player2.hitpoints * 2, 10))
pygame.display.flip()
delta = time.clock() - start
if delta < constants.FRAME:
time.sleep(constants.FRAME - delta)
def render(self, draw_data):
# perf: local for faster access
io = self.io
display_width, display_height = io.display_size
fb_width = int(display_width * io.display_fb_scale[0])
fb_height = int(display_height * io.display_fb_scale[1])
if fb_width == 0 or fb_height == 0:
return
draw_data.scale_clip_rects(*io.display_fb_scale)
# backup GL state
# todo: provide cleaner version of this backup-restore code
last_program = gl.GLint()
gl.glGetIntegerv(gl.GL_CURRENT_PROGRAM, byref(last_program))
last_texture = gl.GLint()
gl.glGetIntegerv(gl.GL_TEXTURE_BINDING_2D, byref(last_texture))
last_active_texture = gl.GLint()
gl.glGetIntegerv(gl.GL_ACTIVE_TEXTURE, byref(last_active_texture))
last_array_buffer = gl.GLint()
gl.glGetIntegerv(gl.GL_ARRAY_BUFFER_BINDING, byref(last_array_buffer))
last_element_array_buffer = gl.GLint()
gl.glGetIntegerv(gl.GL_ELEMENT_ARRAY_BUFFER_BINDING, byref(last_element_array_buffer))
last_vertex_array = gl.GLint()
gl.glGetIntegerv(gl.GL_VERTEX_ARRAY_BINDING, byref(last_vertex_array))
last_blend_src = gl.GLint()
gl.glGetIntegerv(gl.GL_BLEND_SRC, byref(last_blend_src))
last_blend_dst = gl.GLint()
gl.glGetIntegerv(gl.GL_BLEND_DST, byref(last_blend_dst))
last_blend_equation_rgb = gl.GLint()
gl.glGetIntegerv(gl.GL_BLEND_EQUATION_RGB, byref(last_blend_equation_rgb))
last_blend_equation_alpha = gl.GLint()
gl.glGetIntegerv(gl.GL_BLEND_EQUATION_ALPHA, byref(last_blend_equation_alpha))
last_viewport = (gl.GLint*4)()
gl.glGetIntegerv(gl.GL_VIEWPORT, last_viewport)
last_scissor_box = (gl.GLint*4)()
gl.glGetIntegerv(gl.GL_SCISSOR_BOX, last_scissor_box)
last_enable_blend = gl.GLint()
gl.glIsEnabled(gl.GL_BLEND, byref(last_enable_blend))
last_enable_cull_face = gl.GLint()
gl.glIsEnabled(gl.GL_CULL_FACE, byref(last_enable_cull_face))
last_enable_depth_test = gl.GLint()
gl.glIsEnabled(gl.GL_DEPTH_TEST, byref(last_enable_depth_test))
last_enable_scissor_test = gl.GLint()
gl.glIsEnabled(gl.GL_SCISSOR_TEST, byref(last_enable_scissor_test))
gl.glEnable(gl.GL_BLEND)
gl.glBlendEquation(gl.GL_FUNC_ADD)
gl.glBlendFunc(gl.GL_SRC_ALPHA, gl.GL_ONE_MINUS_SRC_ALPHA)
gl.glDisable(gl.GL_CULL_FACE)
gl.glDisable(gl.GL_DEPTH_TEST)
gl.glEnable(gl.GL_SCISSOR_TEST)
gl.glActiveTexture(gl.GL_TEXTURE0)
gl.glViewport(0, 0, int(fb_width), int(fb_height))
ortho_projection = [
2.0/display_width, 0.0, 0.0, 0.0,
0.0, 2.0/-display_height, 0.0, 0.0,
0.0, 0.0, -1.0, 0.0,
-1.0, 1.0, 0.0, 1.0
]
gl.glUseProgram(self._shader_handle)
gl.glUniform1i(self._attrib_location_tex, 0)
gl.glUniformMatrix4fv(self._attrib_proj_mtx, 1, gl.GL_FALSE, (gl.GLfloat * 16)(*ortho_projection))
gl.glBindVertexArray(self._vao_handle)
for commands in draw_data.commands_lists:
idx_buffer_offset = 0
gl.glBindBuffer(gl.GL_ARRAY_BUFFER, self._vbo_handle)
# todo: check this (sizes)
gl.glBufferData(gl.GL_ARRAY_BUFFER, commands.vtx_buffer_size * imgui.VERTEX_SIZE, c_void_p(commands.vtx_buffer_data), gl.GL_STREAM_DRAW)
gl.glBindBuffer(gl.GL_ELEMENT_ARRAY_BUFFER, self._elements_handle)
# todo: check this (sizes)
gl.glBufferData(gl.GL_ELEMENT_ARRAY_BUFFER, commands.idx_buffer_size * imgui.INDEX_SIZE, c_void_p(commands.idx_buffer_data), gl.GL_STREAM_DRAW)
# todo: allow to iterate over _CmdList
for command in commands.commands:
gl.glBindTexture(gl.GL_TEXTURE_2D, command.texture_id)
# todo: use named tuple
x, y, z, w = command.clip_rect
gl.glScissor(int(x), int(fb_height - w), int(z - x), int(w - y))
if imgui.INDEX_SIZE == 2:
gltype = gl.GL_UNSIGNED_SHORT
else:
gltype = gl.GL_UNSIGNED_INT
gl.glDrawElements(gl.GL_TRIANGLES, command.elem_count, gltype, c_void_p(idx_buffer_offset))
idx_buffer_offset += command.elem_count * imgui.INDEX_SIZE
# restore modified GL state
gl.glUseProgram(cast((c_int*1)(last_program), POINTER(c_uint)).contents)
gl.glActiveTexture(cast((c_int*1)(last_active_texture), POINTER(c_uint)).contents)
gl.glBindTexture(gl.GL_TEXTURE_2D, cast((c_int*1)(last_texture), POINTER(c_uint)).contents)
gl.glBindVertexArray(cast((c_int*1)(last_vertex_array), POINTER(c_uint)).contents)
gl.glBindBuffer(gl.GL_ARRAY_BUFFER, cast((c_int*1)(last_array_buffer), POINTER(c_uint)).contents)
gl.glBindBuffer(gl.GL_ELEMENT_ARRAY_BUFFER, cast((c_int*1)(last_element_array_buffer), POINTER(c_uint)).contents)
gl.glBlendEquationSeparate(cast((c_int*1)(last_blend_equation_rgb), POINTER(c_uint)).contents,
cast((c_int*1)(last_blend_equation_alpha), POINTER(c_uint)).contents)
gl.glBlendFunc(cast((c_int*1)(last_blend_src), POINTER(c_uint)).contents,
cast((c_int*1)(last_blend_dst), POINTER(c_uint)).contents)
if last_enable_blend:
gl.glEnable(gl.GL_BLEND)
else:
gl.glDisable(gl.GL_BLEND)
if last_enable_cull_face:
gl.glEnable(gl.GL_CULL_FACE)
else:
gl.glDisable(gl.GL_CULL_FACE)
if last_enable_depth_test:
gl.glEnable(gl.GL_DEPTH_TEST)
else:
gl.glDisable(gl.GL_DEPTH_TEST)
if last_enable_scissor_test:
gl.glEnable(gl.GL_SCISSOR_TEST)
else:
gl.glDisable(gl.GL_SCISSOR_TEST)
gl.glViewport(last_viewport[0], last_viewport[1], last_viewport[2], last_viewport[3])
gl.glScissor(last_scissor_box[0], last_scissor_box[1], last_scissor_box[2], last_scissor_box[3])
def ClearDrawTextureState():
'''Reset the GL device from drawing textures'''
gl.glBlendEquation(gl.GL_FUNC_ADD)
pyglet.gl.glColor4f(1.0, 1.0, 1.0, 1.0)
gl.glDisable(gl.GL_BLEND)
