def _draw_wireframe_display_list(self, dl):
pgl.glPushAttrib(pgl.GL_ENABLE_BIT | pgl.GL_POLYGON_BIT)
pgl.glPolygonMode(pgl.GL_FRONT_AND_BACK, pgl.GL_LINE)
pgl.glEnable(pgl.GL_POLYGON_OFFSET_LINE)
pgl.glPolygonOffset(-0.005, -50.0)
pgl.glCallList(dl)
pgl.glPopAttrib()
def draw(self, state = [0,0,0]):
gl.glEnable (gl.GL_LINE_SMOOTH);
gl.glHint (gl.GL_LINE_SMOOTH_HINT, gl.GL_NICEST)
gl.glLoadIdentity()
gl.glLineWidth(1)
gl.glColor3f(.7,.7,.7)
draw_rect((-.5,0), (.5,-.01))
draw_rect((-.01,0),(.01,1))
gl.glTranslatef(0,self.r_roller,0);
gl.glPushMatrix();
gl.glTranslatef(state[0]*self.r_roller, 0, 0)
gl.glColor3f(0,0,0)
gl.glLineWidth(3)
# gl.glPushMatrix()
gl.glRotatef(-R2D*state[0],0,0,1)
draw_mass_center(self.r_roller, (0,0))
# gl.glPopMatrix()
gl.glRotatef(-R2D*state[1], 0, 0, 1)
gl.glTranslatef(0,self.r_roller,0)
gl.glPushMatrix()
gl.glRotatef(R2D*(state[1]+state[0]),0,0,1)
gl.glPushAttrib(gl.GL_ENABLE_BIT);
gl.glColor3f(.7,.2,.2)
gl.glLineStipple(1, 0xF00F) # [1]
gl.glEnable(gl.GL_LINE_STIPPLE)
draw_line((0,0),(0,1))
gl.glPopAttrib()
gl.glPopMatrix()
gl.glTranslatef(-state[1] * self.r_roller,0,0)
gl.glColor3f(0,0,0)
draw_rect( (-self.l_board/2,0), (self.l_board/2,.02))
gl.glColor3f(.5,.5,.5)
draw_rect((-.01,0), (.01,self.h_body))
gl.glPushMatrix()
gl.glTranslatef(0, self.h_body, 0)
gl.glRotatef(R2D*state[2], 0, 0, 1)
gl.glColor3f(0,0,0);
draw_mass_center(.1, (0,0))
gl.glPopMatrix()
if len(state) >= 8:
gl.glPushMatrix()
gl.glTranslatef(0, self.h_body, 0)
gl.glRotatef(R2D*state[3], 0, 0, 1)
gl.glTranslatef(0, -self.h_body+self.r_roller+.05, 0)
gl.glColor3f(0,0,0);
draw_mass_center(.03, (0,0))
gl.glPopMatrix()
gl.glPopMatrix();
def set_state(self):
"""
Ensure that blending is set.
"""
gl.glPushAttrib(gl.GL_ENABLE_BIT | gl.GL_CURRENT_BIT)
gl.glEnable(gl.GL_BLEND)
gl.glBlendFunc(gl.GL_SRC_ALPHA, gl.GL_ONE_MINUS_SRC_ALPHA)
def draw(self):
if self._render_object:
pgl.glPushAttrib(pgl.GL_ENABLE_BIT | pgl.GL_POLYGON_BIT | pgl.GL_DEPTH_BUFFER_BIT)
if self._overlay:
pgl.glDisable(pgl.GL_DEPTH_TEST)
self._render_object.draw()
pgl.glPopAttrib()
def draw(self):
if self._dirty:
self._context = Context()
self._parts = []
self.free()
self.render()
self.build_vbo()
self._dirty = False
# set
gl.glEnable(self._texture.target)
gl.glBindTexture(self._texture.target, self._texture.id)
gl.glPushAttrib(gl.GL_COLOR_BUFFER_BIT)
gl.glEnable(gl.GL_BLEND)
gl.glBlendFunc(gl.GL_SRC_ALPHA, gl.GL_ONE_MINUS_SRC_ALPHA)
gl.glPushMatrix()
self.transform()
# cuadric.begin()
self._vertex_list.draw(gl.GL_TRIANGLES)
# cuadric.end()
# unset
gl.glPopMatrix()
gl.glPopAttrib()
gl.glDisable(self._texture.target)
def after_draw(self, camera):
"""Called by CocosNode when the texture is already grabbed.
The FrameBuffer will be unbound and the texture will be drawn
:Parameters:
`camera` : `Camera`
The target's camera object.
"""
# capture after drawing
self.grabber.after_render(self.texture)
# after unbinding
# set a 3d projection
self._set_3d_projection()
# and center the camera
camera.locate(force=True)
# blit
gl.glEnable(self.texture.target)
gl.glBindTexture(self.texture.target, self.texture.id)
gl.glPushAttrib(gl.GL_COLOR_BUFFER_BIT)
self._blit()
gl.glPopAttrib()
gl.glDisable(self.texture.target)
def draw(self):
if self._render_object:
pgl.glPushAttrib(pgl.GL_ENABLE_BIT | pgl.GL_POLYGON_BIT | pgl.GL_DEPTH_BUFFER_BIT)
if self._overlay:
pgl.glDisable(pgl.GL_DEPTH_TEST)
self._render_object.draw()
pgl.glPopAttrib()
def draw(self):
if self._dirty:
self._context = Context()
self._parts = []
self.free()
self.render()
self.build_vbo()
self._dirty = False
# set
gl.glEnable(self._texture.target)
gl.glBindTexture(self._texture.target, self._texture.id)
gl.glPushAttrib(gl.GL_COLOR_BUFFER_BIT)
gl.glEnable(gl.GL_BLEND)
gl.glBlendFunc(gl.GL_SRC_ALPHA, gl.GL_ONE_MINUS_SRC_ALPHA)
gl.glPushMatrix()
self.transform()
# cuadric.begin()
self._vertex_list.draw(gl.GL_TRIANGLES)
# cuadric.end()
# unset
gl.glPopMatrix()
gl.glPopAttrib()
gl.glDisable(self._texture.target)
def set_state(self):
"""
Ensure that blending is set.
"""
gl.glPushAttrib(gl.GL_ENABLE_BIT | gl.GL_CURRENT_BIT)
gl.glEnable(gl.GL_BLEND)
gl.glBlendFunc(gl.GL_SRC_ALPHA, gl.GL_ONE_MINUS_SRC_ALPHA)
def after_draw(self, camera):
"""Called by CocosNode when the texture is already grabbed.
The FrameBuffer will be unbound and the texture will be drawn
:Parameters:
`camera` : `Camera`
The target's camera object.
"""
# capture after drawing
self.grabber.after_render(self.texture)
# after unbinding
# set a 3d projection
self._set_3d_projection()
# and center the camera
camera.locate(force=True)
# blit
gl.glEnable(self.texture.target)
gl.glBindTexture(self.texture.target, self.texture.id)
gl.glPushAttrib(gl.GL_COLOR_BUFFER_BIT)
self._blit()
gl.glPopAttrib()
gl.glDisable(self.texture.target)
def _draw(self):
corner = c = self.octree.corner
w = self.octree.width
gl.glPushAttrib( gl.GL_ENABLE_BIT )
gl.glEnable( gl.GL_COLOR_MATERIAL )
if self.octree._child_nodes is None:
if self.list_id:
gl.glCallList(self.list_id)
else:
self.list_id = gl.glGenLists(1)
gl.glNewList(self.list_id, gl.GL_COMPILE)
gl.glColor3f(*self.color)
gl.glBegin(gl.GL_LINE_LOOP)
gl.glVertex3f(*c)
gl.glVertex3f(*(c + (0,w,0)))
gl.glVertex3f(*(c + (0,w,w)))
gl.glVertex3f(*(c + (0,0,w)))
gl.glEnd()
c = corner + (w,0,0)
gl.glBegin(gl.GL_LINE_LOOP)
gl.glVertex3f(*c)
gl.glVertex3f(*(c + (0,w,0)))
gl.glVertex3f(*(c + (0,w,w)))
gl.glVertex3f(*(c + (0,0,w)))
gl.glEnd()
gl.glBegin(gl.GL_LINES)
gl.glVertex3f(*c)
gl.glVertex3f(*(c - (w,0,0)))
gl.glVertex3f(*(c + (0,w,0)))
gl.glVertex3f(*(corner + (0,w,0)))
gl.glVertex3f(*(c + (0,w,w)))
gl.glVertex3f(*(corner + (0,w,w)))
gl.glVertex3f(*(c + (0,0,w)))
gl.glVertex3f(*(corner + (0,0,w)))
gl.glEnd()
gl.glEndList()
# This could be optimized of course
if self.octree._child_nodes is not None:
r = self.color[0] + 0.14
if r < 1.0:
r = r % 1.0
else:
r = 1.0
b = max((self.color[2] - 0.14), 0)
for node in self.octree._child_nodes.values():
if not self._cache.has_key(id(node)):
self._cache[id(node)] = OctreeDebug(node, color=(r,0,b))
debugNode = self._cache[id(node)]
debugNode._draw()
gl.glColor3f(1,1,1)
gl.glPopAttrib()
def set_state(self):
gl.glPushAttrib(gl.GL_ENABLE_BIT | gl.GL_TRANSFORM_BIT | gl.GL_CURRENT_BIT)
gl.glEnable(gl.GL_BLEND)
gl.glBlendFuncSeparate(gl.GL_SRC_ALPHA, gl.GL_ONE_MINUS_SRC_ALPHA, gl.GL_ONE, gl.GL_ONE_MINUS_SRC_ALPHA)
# To Allow Normal Rendering when Buffering with FrameBufferObject
# Without this option : problem with alpha blending when rendering buffered GUI textures
#Also in context.glContext
# Disable clipping planes to check culling.
gl.glEnable(gl.GL_CLIP_PLANE0)
gl.glEnable(gl.GL_CLIP_PLANE1)
gl.glEnable(gl.GL_CLIP_PLANE2)
gl.glEnable(gl.GL_CLIP_PLANE3)
# Left
gl.glClipPlane(gl.GL_CLIP_PLANE0, (gl.GLdouble * 4)(
1, 0, 0, -(self._clip_x - 1)))
# Top
gl.glClipPlane(gl.GL_CLIP_PLANE1, (gl.GLdouble * 4)(
0, -1, 0, self._clip_y))
# Right
gl.glClipPlane(gl.GL_CLIP_PLANE2, (gl.GLdouble * 4)(
-1, 0, 0, self._clip_x + self._clip_width + 1))
# Bottom
gl.glClipPlane(gl.GL_CLIP_PLANE3, (gl.GLdouble * 4)(
0, 1, 0, -(self._clip_y - self._clip_height)))
gl.glTranslatef(self.translate_x, self.translate_y, 0)
def update_display(verts, tex_coords, texture=bird_texture):
gl.glClearColor(0.2, 0.4, 0.5, 1.0)
gl.glEnable(texture.target)
gl.glBindTexture(texture.target, texture.id)
gl.glPushAttrib(gl.GL_COLOR_BUFFER_BIT)
gl.glEnable(gl.GL_ALPHA_TEST)
gl.glAlphaFunc(gl.GL_GREATER, .1)
#gl.glEnable(gl.GL_BLEND)
#gl.glBlendFunc (gl.GL_SRC_ALPHA, gl.GL_ONE_MINUS_SRC_ALPHA)
gl.glEnable(gl.GL_DEPTH_TEST)
gl.glEnableClientState(gl.GL_VERTEX_ARRAY)
gl.glEnableClientState(gl.GL_TEXTURE_COORD_ARRAY)
n = len(verts[:])
#TODO verts._buffer.ctypes.data is awkward
gl.glVertexPointer(3, vert_dtype.gl, 0, verts[:].ctypes.data)
gl.glTexCoordPointer(3, tex_dtype.gl, 0, tex_coords[:].ctypes.data)
gl.glDrawArrays(gl.GL_TRIANGLE_STRIP, 0, n)
#unset state
gl.glPopAttrib()
gl.glDisable(texture.target)
def update_display(verts,tex_coords,texture=bird_texture):
gl.glClearColor(0.2, 0.4, 0.5, 1.0)
gl.glEnable(texture.target)
gl.glBindTexture(texture.target, texture.id)
gl.glPushAttrib(gl.GL_COLOR_BUFFER_BIT)
gl.glEnable(gl.GL_ALPHA_TEST)
gl.glAlphaFunc (gl.GL_GREATER, .1)
#gl.glEnable(gl.GL_BLEND)
#gl.glBlendFunc (gl.GL_SRC_ALPHA, gl.GL_ONE_MINUS_SRC_ALPHA)
gl.glEnable(gl.GL_DEPTH_TEST)
gl.glEnableClientState(gl.GL_VERTEX_ARRAY)
gl.glEnableClientState(gl.GL_TEXTURE_COORD_ARRAY)
n=len(verts[:])
#TODO verts._buffer.ctypes.data is awkward
gl.glVertexPointer(3, vert_dtype.gl, 0, verts[:].ctypes.data)
gl.glTexCoordPointer(3, tex_dtype.gl, 0, tex_coords[:].ctypes.data)
gl.glDrawArrays(gl.GL_TRIANGLE_STRIP, 0, n)
#unset state
gl.glPopAttrib()
gl.glDisable(texture.target)
def _draw_wireframe_display_list(self, dl):
pgl.glPushAttrib(pgl.GL_ENABLE_BIT | pgl.GL_POLYGON_BIT)
pgl.glPolygonMode(pgl.GL_FRONT_AND_BACK, pgl.GL_LINE)
pgl.glEnable(pgl.GL_POLYGON_OFFSET_LINE)
pgl.glPolygonOffset(-0.005, -50.0)
pgl.glCallList(dl)
pgl.glPopAttrib()
def buffer_texture(width, height):
id_ = gl.GLuint()
gl.glGenTextures(1, byref(id_))
gl.glPushAttrib(gl.GL_ENABLE_BIT | gl.GL_TEXTURE_BIT)
gl.glActiveTexture(gl.GL_TEXTURE0)
gl.glEnable(gl.GL_TEXTURE_2D)
gl.glBindTexture(gl.GL_TEXTURE_2D, id_)
gl.glTexParameteri(gl.GL_TEXTURE_2D,
gl.GL_TEXTURE_MIN_FILTER,
gl.GL_LINEAR)
gl.glTexParameteri(gl.GL_TEXTURE_2D,
gl.GL_TEXTURE_MAG_FILTER,
gl.GL_LINEAR)
gl.glTexImage2D(
gl.GL_TEXTURE_2D, 0, gl.GL_RGBA,
width, height,
0,
gl.GL_RGBA, gl.GL_UNSIGNED_BYTE,
(gl.GLubyte * (width*height * 4))(),
)
gl.glFlush()
gl.glBindTexture(gl.GL_TEXTURE_2D, 0)
gl.glPopAttrib()
return id_
def set_state(self):
gl.glPushAttrib(gl.GL_LINE_BIT | gl.GL_CURRENT_BIT)
gl.glLineWidth(2)
if self.facet.is_border_facet:
colour = self.BORDER_FACET_COLOUR
else:
colour = self.INNER_FACET_COLOUR
gl.glColor4f(*colour)
def draw(self):
super(ColorLayer, self).draw()
gl.glPushMatrix()
self.transform()
gl.glPushAttrib(gl.GL_CURRENT_BIT)
self._batch.draw()
gl.glPopAttrib()
gl.glPopMatrix()
def on_draw(self):
with reset_matrix(self.w, self.h):
gl.glPushAttrib(gl.GL_ENABLE_BIT)
gl.glEnable(gl.GL_BLEND)
gl.glBlendFunc(gl.GL_SRC_ALPHA, gl.GL_ONE_MINUS_SRC_ALPHA)
super().on_draw()
gl.glPopAttrib()
def set_state(self):
gl.glPushAttrib(gl.GL_CURRENT_BIT)
if self.facet.home_facet_of:
colour = self.facet.colour
else:
if self.facet.is_border_facet:
colour = self.BORDER_FACET_COLOUR
else:
colour = self.INNER_FACET_COLOUR
gl.glColor4f(*colour)
def draw_mass_center(r, pt):
x,y = pt
gl.glPushAttrib(gl.GL_CURRENT_BIT)
gl.glColor3f(1,1,1)
draw_circle(r, pt, filled=True)
gl.glColor3f(0,0,0)
draw_circle(r, pt, filled=False)
draw_arc((r, r), pt, (0,pi/2))
draw_arc((r, r), pt, (pi,3*pi/2))
gl.glPopAttrib()
def set_state(self):
"""
Enables a scissor test on our region
"""
gl.glPushAttrib(gl.GL_ENABLE_BIT | gl.GL_TRANSFORM_BIT
| gl.GL_CURRENT_BIT)
self.was_scissor_enabled = gl.glIsEnabled(gl.GL_SCISSOR_TEST)
gl.glEnable(gl.GL_SCISSOR_TEST)
gl.glScissor(int(self.x), int(self.y), int(self.width),
int(self.height))
def render(self):
from pyglet import gl
gl.glPushAttrib(gl.GL_CURRENT_BIT)
gl.glColor3f(1.0, 0.0, 0.0)
for p in self._polys_top:
gl.glBegin(gl.GL_LINE_STRIP)
for i, q in enumerate(p):
gl.glVertex2f(q[0], q[1])
gl.glVertex2f(p[0][0], p[0][1])
gl.glEnd()
gl.glPopAttrib(gl.GL_CURRENT_BIT)
def draw_fallback(self):
"""Called instead of :meth:`draw` when quads are used instead of
Point Sprite.
"""
self.make_delta_pos_to_vertex()
self.update_vertexs_from_pos()
self.update_per_vertex_colors()
gl.glPushMatrix()
self.transform()
# color preserve - at least intel 945G needs that
gl.glPushAttrib(gl.GL_CURRENT_BIT)
gl.glEnable(gl.GL_TEXTURE_2D)
gl.glBindTexture(gl.GL_TEXTURE_2D, self.texture.id)
gl.glEnableClientState(gl.GL_VERTEX_ARRAY)
vertexs_ptr = PointerToNumpy(self.vertexs)
gl.glVertexPointer(2, gl.GL_FLOAT, 0, vertexs_ptr)
gl.glEnableClientState(gl.GL_COLOR_ARRAY)
color_ptr = PointerToNumpy(self.per_vertex_colors)
# gl.glColorPointer(4, gl.GL_UNSIGNED_BYTE, 0, color_ptr)
gl.glColorPointer(4, gl.GL_FLOAT, 0, color_ptr)
gl.glEnableClientState(gl.GL_TEXTURE_COORD_ARRAY)
tex_coord_ptr = PointerToNumpy(self.tex_coords)
gl.glTexCoordPointer(2, gl.GL_FLOAT, 0, tex_coord_ptr)
gl.glPushAttrib(gl.GL_COLOR_BUFFER_BIT)
gl.glEnable(gl.GL_BLEND)
if self.blend_additive:
gl.glBlendFunc(gl.GL_SRC_ALPHA, gl.GL_ONE)
else:
gl.glBlendFunc(gl.GL_SRC_ALPHA, gl.GL_ONE_MINUS_SRC_ALPHA)
gl.glDrawArrays(gl.GL_QUADS, 0, len(self.vertexs) * 4)
# un -blend
gl.glPopAttrib()
# color restore
gl.glPopAttrib()
# disable states
gl.glDisableClientState(gl.GL_TEXTURE_COORD_ARRAY)
gl.glDisableClientState(gl.GL_COLOR_ARRAY)
gl.glDisableClientState(gl.GL_VERTEX_ARRAY)
gl.glDisable(gl.GL_TEXTURE_2D)
gl.glPopMatrix()
def draw_special(self, style):
"""Draws the batch with special OpenGL attributes.
Args:
style (int): The style with which to draw the batch.
"""
glPushAttrib(GL_ENABLE_BIT)
if style == self.DASHED_LINES:
self._set_dashed_lines()
self.draw()
glPopAttrib()
def illuminate(self):
if not self.is_fbo_valid():
self.fbo = FrameBuffer(self.viewport.w, self.viewport.h)
#self.vl.vertices = self.viewport_coords()
with self.fbo:
gl.glClear(gl.GL_COLOR_BUFFER_BIT | gl.GL_DEPTH_BUFFER_BIT)
gl.glPushAttrib(gl.GL_ALL_ATTRIB_BITS)
yield
gl.glPopAttrib()
if self.sh is None:
self.sh = self._build_spatial_hash()
self.render()
def draw(self, x, y, width, height):
"""Draw the nine-patch at the given image dimensions."""
width = max(width, self.width + 2)
height = max(height, self.height + 2)
vertices = self.get_vertices(int(x), int(y), int(width), int(height))
glPushAttrib(GL_ENABLE_BIT)
glEnable(GL_BLEND)
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
glEnable(self.texture.target)
glBindTexture(self.texture.target, self.texture.id)
pyglet.graphics.draw_indexed(16, GL_QUADS, self.indices,
('v2i', vertices),
('t2f', self.tex_coords))
glPopAttrib()
def draw(self):
glPushMatrix()
glPushAttrib(GL_STENCIL_BUFFER_BIT)
glClear(GL_STENCIL_BUFFER_BIT)
glTranslatef(self.parent.x, self.parent.y, 0)
glDisable(GL_TEXTURE_2D)
loader = self.loader
if loader.shape == LINE_SHAPE:
glEnable(GL_LINE_SMOOTH)
glEnable(GL_POINT_SMOOTH)
glLineWidth(loader.borderSize)
glPointSize(loader.borderSize)
self.vertex.draw(GL_LINES)
self.vertex.draw(GL_POINTS)
elif loader.shape == RECTANGLE_SHAPE:
width = self.parent.width
height = self.parent.height
if loader.fillType != NONE_FILL:
# for counters
if self.counter_stencil:
glEnable(GL_STENCIL_TEST)
glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE)
glStencilFunc(GL_ALWAYS, 1, 1)
glStencilOp(GL_REPLACE, GL_REPLACE, GL_REPLACE)
self.counter_stencil.draw(GL_QUADS)
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE)
glStencilFunc(GL_EQUAL, 1, 1)
self.draw_rectangle()
glDisable(GL_STENCIL_TEST)
else:
self.draw_rectangle()
if self.border is not None:
self.border.draw(GL_QUADS)
elif loader.shape == ELLIPSE_SHAPE:
if loader.fillType != NONE_FILL:
glEnable(GL_STENCIL_TEST)
glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE)
glStencilFunc(GL_ALWAYS, 1, 1)
glStencilOp(GL_REPLACE, GL_REPLACE, GL_REPLACE)
self.stencil.draw(GL_TRIANGLES)
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE)
glStencilFunc(GL_EQUAL, 1, 1)
self.draw_rectangle(True)
glDisable(GL_STENCIL_TEST)
if self.border:
self.border.draw(GL_QUADS)
glPopAttrib()
glPopMatrix()
def render(self):
from pyglet import gl
gl.glPushAttrib(gl.GL_CURRENT_BIT)
gl.glColor3f(1.0, 0.0, 0.0)
# Here we'll render each waypoint as a red square.
for (_, _, x, y) in self._waypoints:
gl.glBegin(gl.GL_QUADS)
gl.glVertex2f(x-2, y-4)
gl.glVertex2f(x+2, y-4)
gl.glVertex2f(x+2, y+4)
gl.glVertex2f(x-2, y+4)
gl.glEnd()
gl.glLineWidth(3)
# And let's draw a line between each waypoint, so we know where we're going next.
gl.glBegin(gl.GL_LINE_STRIP)
for (_, _, x, y) in self._waypoints:
gl.glVertex2f(x, y)
gl.glEnd()
gl.glPopAttrib(gl.GL_CURRENT_BIT)
def bind(self):
assert Framebuffer.current_fbo is None
from pyglet import gl
t = self.texture
gl.glBindFramebufferEXT(gl.GL_FRAMEBUFFER_EXT, self.fbo_id)
gl.glPushAttrib(gl.GL_VIEWPORT_BIT | gl.GL_TRANSFORM_BIT)
if t:
gl.glViewport(0, 0, t.width, t.height)
gl.glMatrixMode(gl.GL_PROJECTION)
gl.glPushMatrix()
if t:
gl.glLoadIdentity()
gl.gluOrtho2D(0, t.width, 0, t.height)
gl.glMatrixMode(gl.GL_MODELVIEW)
gl.glPushMatrix()
if t:
gl.glLoadIdentity()
Framebuffer.current_fbo = self
def blit_image(self, matrix, position, scale, image):
x, y = image.width * scale, image.height * scale
# dx = self.x + position[0]
# dy = self.y + position[1]
dx, dy = position
gl.glEnable(image.target)
gl.glBindTexture(image.target, image.id)
gl.glPushAttrib(gl.GL_COLOR_BUFFER_BIT)
gl.glEnable(gl.GL_BLEND)
gl.glBlendFunc(gl.GL_SRC_ALPHA, gl.GL_ONE_MINUS_SRC_ALPHA)
# blit img
points = [
(-dx, -dy),
(x - dx, -dy),
(x - dx, y - dy),
(-dx, y - dy)
]
a, b, _, c, d, _, e, f, _, g, h, _ = image.texture.tex_coords
textures = [a, b, c, d, e, f, g, h]
np = [matrix * euclid.Point2(*p) for p in points]
gl.glColor4ub(255, 255, 255, self.alpha)
gl.glBegin(gl.GL_QUADS)
gl.glTexCoord2f(a, b)
gl.glVertex2f(*np[0])
gl.glTexCoord2f(c, d)
gl.glVertex2f(*np[1])
gl.glTexCoord2f(e, f)
gl.glVertex2f(*np[2])
gl.glTexCoord2f(g, h)
gl.glVertex2f(*np[3])
gl.glEnd()
gl.glColor4ub(255, 255, 255, 255)
# pyglet.graphics.draw(4, GL_QUADS,
# ("v2f", new_points),
# ("t2f", textures),
# ("c4B", [255, 255, 255, self.alpha] * 4),
# )
gl.glPopAttrib()
gl.glDisable(image.target)
def _set_view(self):
left = int(self._pixel_per_point[0] * self.rect.left)
bottom = int(self._pixel_per_point[1] * self.rect.bottom)
width = int(self._pixel_per_point[0] * self.rect.width)
height = int(self._pixel_per_point[1] * self.rect.height)
gl.glPushAttrib(gl.GL_ENABLE_BIT)
gl.glEnable(gl.GL_SCISSOR_TEST)
gl.glScissor(left, bottom, width, height)
self._mode = (gl.GLint)()
gl.glGetIntegerv(gl.GL_MATRIX_MODE, self._mode)
self._viewport = (gl.GLint * 4)()
gl.glGetIntegerv(gl.GL_VIEWPORT, self._viewport)
gl.glViewport(left, bottom, width, height)
gl.glMatrixMode(gl.GL_PROJECTION)
gl.glPushMatrix()
gl.glLoadIdentity()
near = 0.01
far = 1000.
gl.gluPerspective(self.scene.camera.fov[1], width / height, near, far)
gl.glMatrixMode(gl.GL_MODELVIEW)
def set_state(self):
glPushAttrib(GL_ENABLE_BIT)
glEnable(GL_BLEND)
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
glEnable(self.texture.target)
glBindTexture(self.texture.target, self.texture.id)
def draw(self):
gl.glPushMatrix()
self.transform()
# color preserve - at least nvidia 6150SE needs that
gl.glPushAttrib(gl.GL_CURRENT_BIT)
# glPointSize(self.get_scaled_particle_size())
gl.glEnable(gl.GL_TEXTURE_2D)
gl.glEnable(gl.GL_PROGRAM_POINT_SIZE)
# glBindTexture(GL_TEXTURE_2D, self.texture.id)
gl.glEnable(gl.GL_POINT_SPRITE)
gl.glTexEnvi(gl.GL_POINT_SPRITE, gl.GL_COORD_REPLACE, gl.GL_TRUE)
gl.glEnableClientState(gl.GL_VERTEX_ARRAY)
vertex_ptr = PointerToNumpy(self.particle_pos)
gl.glVertexPointer(2, gl.GL_FLOAT, 0, vertex_ptr)
gl.glEnableClientState(gl.GL_COLOR_ARRAY)
color_ptr = PointerToNumpy(self.particle_color)
gl.glColorPointer(4, gl.GL_FLOAT, 0, color_ptr)
gl.glEnableVertexAttribArray(self.particle_size_idx)
size_ptr = PointerToNumpy(self.particle_size_scaled)
gl.glVertexAttribPointer(self.particle_size_idx, 1, gl.GL_FLOAT,
False, 0, size_ptr)
gl.glPushAttrib(gl.GL_COLOR_BUFFER_BIT)
gl.glEnable(gl.GL_BLEND)
if self.blend_additive:
gl.glBlendFunc(gl.GL_SRC_ALPHA, gl.GL_ONE)
else:
gl.glBlendFunc(gl.GL_SRC_ALPHA, gl.GL_ONE_MINUS_SRC_ALPHA)
# mode = GLint()
# glTexEnviv( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, mode )
#
# if self.color_modulate:
# glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE )
# else:
# glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE )
self.sprite_shader.install()
self.sprite_shader.usetTex('sprite_texture', 0,
gl.GL_TEXTURE_2D, self.texture.id)
gl.glDrawArrays(gl.GL_POINTS, 0, self.total_particles)
self.sprite_shader.uninstall()
# un -blend
gl.glPopAttrib()
# color restore
gl.glPopAttrib()
# restore env mode
# glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, mode)
# disable states
gl.glDisableVertexAttribArray(self.particle_size_idx)
gl.glDisableClientState(gl.GL_COLOR_ARRAY)
gl.glDisableClientState(gl.GL_VERTEX_ARRAY)
gl.glDisable(gl.GL_POINT_SPRITE)
gl.glDisable(gl.GL_PROGRAM_POINT_SIZE)
gl.glDisable(gl.GL_TEXTURE_2D)
gl.glPopMatrix()
def set_state(self):
glPushAttrib(GL_COLOR_BUFFER_BIT)
glEnable(GL_BLEND)
glBlendFunc(self.blend_src, self.blend_dest)
def set_state(self):
gl.glPushAttrib(gl.GL_CURRENT_BIT | gl.GL_LINE_BIT)
gl.glColor4ub(*self.color)
gl.glLineWidth(self.stroke_width)
def renderToTexture(w, h, function):
import ctypes
from pyglet import gl
from pyglet import image
from pyglet.gl import gl_info
global has_fbo
if has_fbo is None:
has_fbo = gl_info.have_extension('GL_EXT_framebuffer_object')
# enforce dimensions are ints
w, h = int(w), int(h)
# set up viewport
gl.glPushAttrib(gl.GL_VIEWPORT_BIT | gl.GL_TRANSFORM_BIT)
gl.glViewport(0, 0, w, h)
gl.glMatrixMode(gl.GL_PROJECTION)
gl.glPushMatrix()
gl.glLoadIdentity()
gl.glOrtho(0, w, 0, h, -1, 1)
gl.glMatrixMode(gl.GL_MODELVIEW)
if has_fbo:
# render directly to texture
# create our frame buffer
fbo = gl.GLuint()
gl.glGenFramebuffersEXT(1, ctypes.byref(fbo))
gl.glBindFramebufferEXT(gl.GL_FRAMEBUFFER_EXT, fbo)
# allocate a texture and add to the frame buffer
tex = image.Texture.create_for_size(gl.GL_TEXTURE_2D, w, h, gl.GL_RGBA)
gl.glBindTexture(gl.GL_TEXTURE_2D, tex.id)
gl.glFramebufferTexture2DEXT(gl.GL_FRAMEBUFFER_EXT,
gl.GL_COLOR_ATTACHMENT0_EXT,
gl.GL_TEXTURE_2D, tex.id, 0)
status = gl.glCheckFramebufferStatusEXT(gl.GL_FRAMEBUFFER_EXT)
assert status == gl.GL_FRAMEBUFFER_COMPLETE_EXT
# now render
gl.glBindFramebufferEXT(gl.GL_FRAMEBUFFER_EXT, fbo)
function()
gl.glBindFramebufferEXT(gl.GL_FRAMEBUFFER_EXT, 0)
# clean up
gl.glDeleteFramebuffersEXT(1, ctypes.byref(fbo))
else:
# render and copy to texture
# render
function()
# grab the buffer and copy contents to the texture
buffer = image.get_buffer_manager().get_color_buffer()
tex = image.Texture.create_for_size(gl.GL_TEXTURE_2D, w, h, gl.GL_RGBA)
tex.blit_into(buffer.get_region(0, 0, w, h), 0, 0, 0)
gl.glMatrixMode(gl.GL_PROJECTION)
gl.glPopMatrix()
gl.glPopAttrib()
# return the region (the whole texture will most likely be larger)
return tex.get_region(0, 0, w, h)
def draw_image(self, img, rect=None, force_copy=False):
""" Renders a GraphicsContextArray into this GC """
xform = self.get_ctm()
image = image_as_array(img)
shape = image.shape
if shape[2] == 4:
fmt = "RGBA"
else:
fmt = "RGB"
aii = ArrayImage(image, format=fmt)
texture = aii.texture
# The texture coords consists of (u,v,r) for each corner of the
# texture rectangle. The coordinates are stored in the order
# bottom left, bottom right, top right, top left.
x, y, w, h = rect
texture.width = w
texture.height = h
t = texture.tex_coords
points = array([
[x, y + h],
[x + w, y + h],
[x + w, y],
[x, y],
])
p = transform_points(affine_from_values(*xform), points)
a = (gl.GLfloat * 32)(
t[0],
t[1],
t[2],
1.,
p[0, 0],
p[0, 1],
0,
1.,
t[3],
t[4],
t[5],
1.,
p[1, 0],
p[1, 1],
0,
1.,
t[6],
t[7],
t[8],
1.,
p[2, 0],
p[2, 1],
0,
1.,
t[9],
t[10],
t[11],
1.,
p[3, 0],
p[3, 1],
0,
1.,
)
gl.glPushAttrib(gl.GL_ENABLE_BIT)
gl.glEnable(texture.target)
gl.glBindTexture(texture.target, texture.id)
gl.glPushClientAttrib(gl.GL_CLIENT_VERTEX_ARRAY_BIT)
gl.glInterleavedArrays(gl.GL_T4F_V4F, 0, a)
gl.glDrawArrays(gl.GL_QUADS, 0, 4)
gl.glPopClientAttrib()
gl.glPopAttrib()
