def do_present_fbo(self):
bw, bh = self.size
ww, wh = self.render_size
self.gl_marker("Presenting FBO on screen")
# Change state to target screen instead of our FBO
glBindFramebuffer(GL_FRAMEBUFFER, 0)
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0)
left, top, right, bottom = self.offsets
#viewport for clearing the whole window:
glViewport(0, 0, left+ww+right, top+wh+bottom)
if self._alpha_enabled:
# transparent background:
glClearColor(0.0, 0.0, 0.0, 0.0)
else:
# black, no alpha:
glClearColor(0.0, 0.0, 0.0, 1.0)
if left or top or right or bottom:
try:
glClear(GL_COLOR_BUFFER_BIT)
except:
log("ignoring glClear(GL_COLOR_BUFFER_BIT) error, buggy driver?", exc_info=True)
#viewport for painting to window:
glViewport(left, top, ww, wh)
# Draw FBO texture on screen
self.set_rgb_paint_state()
rect_count = len(self.pending_fbo_paint)
if self.glconfig.is_double_buffered() or bw!=ww or bh!=wh:
#refresh the whole window:
rectangles = ((0, 0, bw, bh), )
else:
#paint just the rectangles we have accumulated:
rectangles = self.pending_fbo_paint
self.pending_fbo_paint = []
log("do_present_fbo: painting %s", rectangles)
glEnable(GL_TEXTURE_RECTANGLE_ARB)
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, self.textures[TEX_FBO])
if self._alpha_enabled:
# support alpha channel if present:
glEnablei(GL_BLEND, self.textures[TEX_FBO])
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE)
if SAVE_BUFFERS:
glBindFramebuffer(GL_READ_FRAMEBUFFER, self.offscreen_fbo)
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, self.textures[TEX_FBO])
glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_RECTANGLE_ARB, self.textures[TEX_FBO], 0)
glReadBuffer(GL_COLOR_ATTACHMENT0)
glViewport(0, 0, bw, bh)
from OpenGL.GL import glGetTexImage
size = bw*bh*4
import numpy
data = numpy.empty(size)
img_data = glGetTexImage(GL_TEXTURE_RECTANGLE_ARB, 0, GL_BGRA, GL_UNSIGNED_BYTE, data)
from PIL import Image, ImageOps
img = Image.frombuffer("RGBA", (bw, bh), img_data, "raw", "BGRA", bw*4)
img = ImageOps.flip(img)
kwargs = {}
if SAVE_BUFFERS=="jpeg":
kwargs = {
"quality" : 0,
"optimize" : False,
}
t = time.time()
tstr = time.strftime("%H-%M-%S", time.localtime(t))
filename = "./W%i-FBO-%s.%03i.%s" % (self.wid, tstr, (t*1000)%1000, SAVE_BUFFERS)
log("do_present_fbo: saving %4ix%-4i pixels, %7i bytes to %s", bw, bh, size, filename)
img.save(filename, SAVE_BUFFERS, **kwargs)
glBindFramebuffer(GL_READ_FRAMEBUFFER, 0)
if ww!=bw or wh!=bh:
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, GL_LINEAR)
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_LINEAR)
glBegin(GL_QUADS)
for x,y,w,h in rectangles:
#note how we invert coordinates..
tx1, ty1, tx2, ty2 = x, bh-y, x+w, bh-y-h
vx1, vy1, vx2, vy2 = x, y, x+w, y+h
glTexCoord2i(tx1, ty1)
glVertex2i(vx1, vy1) #top-left of window viewport
glTexCoord2i(tx1, ty2)
glVertex2i(vx1, vy2) #bottom-left of window viewport
glTexCoord2i(tx2, ty2)
glVertex2i(vx2, vy2) #bottom-right of window viewport
glTexCoord2i(tx2, ty1)
glVertex2i(vx2, vy1) #top-right of window viewport
glEnd()
glDisable(GL_TEXTURE_RECTANGLE_ARB)
if self.paint_spinner:
#add spinner:
dim = min(bw/3.0, bh/3.0)
t = time.time()
count = int(t*4.0)
bx = bw//2
by = bh//2
for i in range(8): #8 lines
glBegin(GL_POLYGON)
c = cv.trs[count%8][i]
glColor4f(c, c, c, 1)
mi1 = math.pi*i/4-math.pi/16
mi2 = math.pi*i/4+math.pi/16
glVertex2i(int(bx+math.sin(mi1)*10), int(by+math.cos(mi1)*10))
glVertex2i(int(bx+math.sin(mi1)*dim), int(by+math.cos(mi1)*dim))
glVertex2i(int(bx+math.sin(mi2)*dim), int(by+math.cos(mi2)*dim))
glVertex2i(int(bx+math.sin(mi2)*10), int(by+math.cos(mi2)*10))
glEnd()
#if desired, paint window border
if self.border and self.border.shown:
#double size since half the line will be off-screen
glLineWidth(self.border.size*2)
glBegin(GL_LINE_LOOP)
glColor4f(self.border.red, self.border.green, self.border.blue, self.border.alpha)
for px,py in ((0, 0), (bw, 0), (bw, bh), (0, bh)):
glVertex2i(px, py)
glEnd()
if self.pointer_overlay:
x, y, _, _, size, start_time = self.pointer_overlay
elapsed = time.time()-start_time
if elapsed<6:
alpha = max(0, (5.0-elapsed)/5.0)
glLineWidth(1)
glBegin(GL_LINES)
glColor4f(0, 0, 0, alpha)
glVertex2i(x-size, y)
glVertex2i(x+size, y)
glVertex2i(x, y-size)
glVertex2i(x, y+size)
glEnd()
else:
self.pointer_overlay = None
# Show the backbuffer on screen
self.gl_show(rect_count)
self.gl_frame_terminator()
#restore pbo viewport
glViewport(0, 0, bw, bh)
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, GL_NEAREST)
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_NEAREST)
self.unset_rgb_paint_state()
log("%s(%s, %s)", glBindFramebuffer, GL_FRAMEBUFFER, self.offscreen_fbo)
glBindFramebuffer(GL_FRAMEBUFFER, self.offscreen_fbo)
log("%s.do_present_fbo() done", self)
def do_present_fbo(self):
self.gl_marker("Presenting FBO on screen")
# Change state to target screen instead of our FBO
glBindFramebuffer(GL_FRAMEBUFFER, 0)
if self._alpha_enabled:
# transparent background:
glClearColor(0.0, 0.0, 0.0, 0.0)
else:
# plain white no alpha:
glClearColor(1.0, 1.0, 1.0, 1.0)
# Draw FBO texture on screen
self.set_rgb_paint_state()
bw, bh = self.size
ww, wh = self.render_size
if self.glconfig.is_double_buffered() or bw!=ww or bh!=wh:
#refresh the whole window:
rectangles = ((0, 0, bw, bh), )
else:
#paint just the rectangles we have accumulated:
rectangles = self.pending_fbo_paint
self.pending_fbo_paint = []
log("do_present_fbo: painting %s", rectangles)
glEnable(GL_TEXTURE_RECTANGLE_ARB)
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, self.textures[TEX_FBO])
if self._alpha_enabled:
# support alpha channel if present:
glEnablei(GL_BLEND, self.textures[TEX_FBO])
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE)
#viewport for painting to window:
glViewport(0, 0, ww, wh)
if ww!=bw or wh!=bh:
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, GL_LINEAR)
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_LINEAR)
glBegin(GL_QUADS)
for x,y,w,h in rectangles:
#note how we invert coordinates..
tx1, ty1, tx2, ty2 = x, bh-y, x+w, bh-y-h
vx1, vy1, vx2, vy2 = x, y, x+w, y+h
glTexCoord2i(tx1, ty1)
glVertex2i(vx1, vy1) #top-left of window viewport
glTexCoord2i(tx1, ty2)
glVertex2i(vx1, vy2) #bottom-left of window viewport
glTexCoord2i(tx2, ty2)
glVertex2i(vx2, vy2) #bottom-right of window viewport
glTexCoord2i(tx2, ty1)
glVertex2i(vx2, vy1) #top-right of window viewport
glEnd()
glDisable(GL_TEXTURE_RECTANGLE_ARB)
if self.paint_spinner:
#add spinner:
dim = min(bw/3.0, bh/3.0)
t = time.time()
count = int(t*4.0)
bx = bw//2
by = bh//2
for i in range(8): #8 lines
glBegin(GL_POLYGON)
c = cv.trs[count%8][i]
glColor4f(c, c, c, 1)
mi1 = math.pi*i/4-math.pi/16
mi2 = math.pi*i/4+math.pi/16
glVertex2i(int(bx+math.sin(mi1)*10), int(by+math.cos(mi1)*10))
glVertex2i(int(bx+math.sin(mi1)*dim), int(by+math.cos(mi1)*dim))
glVertex2i(int(bx+math.sin(mi2)*dim), int(by+math.cos(mi2)*dim))
glVertex2i(int(bx+math.sin(mi2)*10), int(by+math.cos(mi2)*10))
glEnd()
#if desired, paint window border
if self.border and self.border.shown:
#double size since half the line will be off-screen
glLineWidth(self.border.size*2)
glBegin(GL_LINE_LOOP)
glColor4f(self.border.red, self.border.green, self.border.blue, self.border.alpha)
for px,py in ((0, 0), (bw, 0), (bw, bh), (0, bh)):
glVertex2i(px, py)
glEnd()
# Show the backbuffer on screen
self.gl_show()
self.gl_frame_terminator()
#restore pbo viewport
glViewport(0, 0, bw, bh)
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, GL_NEAREST)
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_NEAREST)
self.unset_rgb_paint_state()
log("%s(%s, %s)", glBindFramebuffer, GL_FRAMEBUFFER, self.offscreen_fbo)
glBindFramebuffer(GL_FRAMEBUFFER, self.offscreen_fbo)
log("%s.do_present_fbo() done", self)
def present_fbo(self, drawable):
if not self.paint_screen:
return
self.gl_marker("Presenting FBO on screen for drawable %s" % drawable)
assert drawable
# Change state to target screen instead of our FBO
glBindFramebuffer(GL_FRAMEBUFFER, 0)
if self._alpha_enabled:
# transparent background:
glClearColor(0.0, 0.0, 0.0, 0.0)
else:
# plain white no alpha:
glClearColor(1.0, 1.0, 1.0, 1.0)
# Draw FBO texture on screen
self.set_rgb_paint_state()
w, h = self.size
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, self.textures[TEX_FBO])
if self._alpha_enabled:
# support alpha channel if present:
glEnablei(GL_BLEND, self.textures[TEX_FBO])
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
glBegin(GL_QUADS)
glTexCoord2i(0, h)
glVertex2i(0, 0)
glTexCoord2i(0, 0)
glVertex2i(0, h)
glTexCoord2i(w, 0)
glVertex2i(w, h)
glTexCoord2i(w, h)
glVertex2i(w, 0)
glEnd()
#if desired, paint window border
if self.border and self.border.shown:
glDisable(GL_TEXTURE_RECTANGLE_ARB)
#double size since half the line will be off-screen
glLineWidth(self.border.size * 2)
glColor4f(self.border.red, self.border.green, self.border.blue,
self.border.alpha)
glBegin(GL_LINE_LOOP)
for x, y in ((0, 0), (w, 0), (w, h), (0, h)):
glVertex2i(x, y)
glEnd()
#reset color to default
glColor4f(1.0, 1.0, 1.0, 1.0)
# Show the backbuffer on screen
if drawable.is_double_buffered():
log("%s.present_fbo() swapping buffers now", self)
drawable.swap_buffers()
# Clear the new backbuffer to illustrate that its contents are undefined
glClear(GL_COLOR_BUFFER_BIT)
else:
glFlush()
self.gl_frame_terminator()
self.unset_rgb_paint_state()
glBindFramebuffer(GL_FRAMEBUFFER, self.offscreen_fbo)
log("%s.present_fbo() done", self)
def do_present_fbo(self):
self.gl_marker("Presenting FBO on screen")
# Change state to target screen instead of our FBO
glBindFramebuffer(GL_FRAMEBUFFER, 0)
if self._alpha_enabled:
# transparent background:
glClearColor(0.0, 0.0, 0.0, 0.0)
else:
# plain white no alpha:
glClearColor(1.0, 1.0, 1.0, 1.0)
# Draw FBO texture on screen
self.set_rgb_paint_state()
bw, bh = self.size
ww, wh = self.render_size
if self.glconfig.is_double_buffered() or bw!=ww or bh!=wh:
#refresh the whole window:
rectangles = ((0, 0, bw, bh), )
else:
#paint just the rectangles we have accumulated:
rectangles = self.pending_fbo_paint
self.pending_fbo_paint = []
log("do_present_fbo: painting %s", rectangles)
glEnable(GL_TEXTURE_RECTANGLE_ARB)
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, self.textures[TEX_FBO])
if self._alpha_enabled:
# support alpha channel if present:
glEnablei(GL_BLEND, self.textures[TEX_FBO])
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE)
#viewport for painting to window:
glViewport(0, 0, ww, wh)
if ww!=bw or wh!=bh:
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, GL_LINEAR)
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_LINEAR)
glBegin(GL_QUADS)
for x,y,w,h in rectangles:
#note how we invert coordinates..
tx1, ty1, tx2, ty2 = x, bh-y, x+w, bh-y-h
vx1, vy1, vx2, vy2 = x, y, x+w, y+h
glTexCoord2i(tx1, ty1)
glVertex2i(vx1, vy1) #top-left of window viewport
glTexCoord2i(tx1, ty2)
glVertex2i(vx1, vy2) #bottom-left of window viewport
glTexCoord2i(tx2, ty2)
glVertex2i(vx2, vy2) #bottom-right of window viewport
glTexCoord2i(tx2, ty1)
glVertex2i(vx2, vy1) #top-right of window viewport
glEnd()
glDisable(GL_TEXTURE_RECTANGLE_ARB)
if self.paint_spinner:
#add spinner:
dim = min(bw/3.0, bh/3.0)
t = time.time()
count = int(t*4.0)
bx = bw//2
by = bh//2
for i in range(8): #8 lines
glBegin(GL_POLYGON)
c = cv.trs[count%8][i]
glColor4f(c, c, c, 1)
mi1 = math.pi*i/4-math.pi/16
mi2 = math.pi*i/4+math.pi/16
glVertex2i(int(bx+math.sin(mi1)*10), int(by+math.cos(mi1)*10))
glVertex2i(int(bx+math.sin(mi1)*dim), int(by+math.cos(mi1)*dim))
glVertex2i(int(bx+math.sin(mi2)*dim), int(by+math.cos(mi2)*dim))
glVertex2i(int(bx+math.sin(mi2)*10), int(by+math.cos(mi2)*10))
glEnd()
#if desired, paint window border
if self.border and self.border.shown:
#double size since half the line will be off-screen
glLineWidth(self.border.size*2)
glBegin(GL_LINE_LOOP)
glColor4f(self.border.red, self.border.green, self.border.blue, self.border.alpha)
for px,py in ((0, 0), (bw, 0), (bw, bh), (0, bh)):
glVertex2i(px, py)
glEnd()
# Show the backbuffer on screen
self.gl_show()
self.gl_frame_terminator()
#restore pbo viewport
glViewport(0, 0, bw, bh)
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, GL_NEAREST)
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_NEAREST)
self.unset_rgb_paint_state()
log("%s(%s, %s)", glBindFramebuffer, GL_FRAMEBUFFER, self.offscreen_fbo)
glBindFramebuffer(GL_FRAMEBUFFER, self.offscreen_fbo)
log("%s.do_present_fbo() done", self)
def present_fbo(self, drawable):
if not self.paint_screen:
return
self.gl_marker("Presenting FBO on screen for drawable %s" % drawable)
assert drawable
# Change state to target screen instead of our FBO
glBindFramebuffer(GL_FRAMEBUFFER, 0)
if self._alpha_enabled:
# transparent background:
glClearColor(0.0, 0.0, 0.0, 0.0)
else:
# plain white no alpha:
glClearColor(1.0, 1.0, 1.0, 1.0)
# Draw FBO texture on screen
self.set_rgb_paint_state()
w, h = self.size
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, self.textures[TEX_FBO])
if self._alpha_enabled:
# support alpha channel if present:
glEnablei(GL_BLEND, self.textures[TEX_FBO])
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
glBegin(GL_QUADS)
glTexCoord2i(0, h)
glVertex2i(0, 0)
glTexCoord2i(0, 0)
glVertex2i(0, h)
glTexCoord2i(w, 0)
glVertex2i(w, h)
glTexCoord2i(w, h)
glVertex2i(w, 0)
glEnd()
#if desired, paint window border
if self.border and self.border.shown:
glDisable(GL_TEXTURE_RECTANGLE_ARB)
#double size since half the line will be off-screen
glLineWidth(self.border.size*2)
glColor4f(self.border.red, self.border.green, self.border.blue, self.border.alpha)
glBegin(GL_LINE_LOOP)
for x,y in ((0, 0), (w, 0), (w, h), (0, h)):
glVertex2i(x, y)
glEnd()
#reset color to default
glColor4f(1.0, 1.0, 1.0, 1.0)
# Show the backbuffer on screen
if drawable.is_double_buffered():
log("%s.present_fbo() swapping buffers now", self)
drawable.swap_buffers()
# Clear the new backbuffer to illustrate that its contents are undefined
glClear(GL_COLOR_BUFFER_BIT)
else:
glFlush()
self.gl_frame_terminator()
self.unset_rgb_paint_state()
glBindFramebuffer(GL_FRAMEBUFFER, self.offscreen_fbo)
log("%s.present_fbo() done", self)
def present_fbo(self, encoding, is_delta, x, y, w, h):
if not self.paint_screen:
return
self.gl_marker("Presenting FBO on screen")
# Change state to target screen instead of our FBO
glBindFramebuffer(GL_FRAMEBUFFER, 0)
if self._alpha_enabled:
# transparent background:
glClearColor(0.0, 0.0, 0.0, 0.0)
else:
# plain white no alpha:
glClearColor(1.0, 1.0, 1.0, 1.0)
# Draw FBO texture on screen
self.set_rgb_paint_state()
ww, wh = self.size
if self.glconfig.is_double_buffered():
#refresh the whole window:
x, y = 0, 0
w, h = ww, wh
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, self.textures[TEX_FBO])
if self._alpha_enabled:
# support alpha channel if present:
glEnablei(GL_BLEND, self.textures[TEX_FBO])
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE)
glBegin(GL_QUADS)
#note how we invert coordinates..
glTexCoord2i(x, wh - y)
glVertex2i(x, y) #top-left of window viewport
glTexCoord2i(x, wh - y - h)
glVertex2i(x, y + h) #bottom-left of window viewport
glTexCoord2i(x + w, wh - y - h)
glVertex2i(x + w, y + h) #bottom-right of window viewport
glTexCoord2i(x + w, wh - y)
glVertex2i(x + w, y) #top-right of window viewport
glEnd()
glDisable(GL_TEXTURE_RECTANGLE_ARB)
#show region being painted:
if OPENGL_PAINT_BOX:
glLineWidth(1)
if is_delta:
glLineStipple(1, 0xf0f0)
glEnable(GL_LINE_STIPPLE)
glBegin(GL_LINE_LOOP)
color = BOX_COLORS.get(encoding, _DEFAULT_BOX_COLOR)
glColor4f(*color)
for px, py in ((x, y), (x + w, y), (x + w, y + h), (x, y + h)):
glVertex2i(px, py)
glEnd()
if is_delta:
glDisable(GL_LINE_STIPPLE)
if self.paint_spinner:
#add spinner:
dim = min(ww / 3.0, wh / 3.0)
t = time.time()
count = int(t * 4.0)
bx = ww // 2
by = wh // 2
for i in range(8): #8 lines
glBegin(GL_POLYGON)
c = cv.trs[count % 8][i]
glColor4f(c, c, c, 1)
mi1 = math.pi * i / 4 - math.pi / 16
mi2 = math.pi * i / 4 + math.pi / 16
glVertex2i(int(bx + math.sin(mi1) * 10),
int(by + math.cos(mi1) * 10))
glVertex2i(int(bx + math.sin(mi1) * dim),
int(by + math.cos(mi1) * dim))
glVertex2i(int(bx + math.sin(mi2) * dim),
int(by + math.cos(mi2) * dim))
glVertex2i(int(bx + math.sin(mi2) * 10),
int(by + math.cos(mi2) * 10))
glEnd()
#if desired, paint window border
if self.border and self.border.shown:
#double size since half the line will be off-screen
glLineWidth(self.border.size * 2)
glBegin(GL_LINE_LOOP)
glColor4f(self.border.red, self.border.green, self.border.blue,
self.border.alpha)
for px, py in ((0, 0), (ww, 0), (ww, wh), (0, wh)):
glVertex2i(px, py)
glEnd()
# Show the backbuffer on screen
self.gl_show()
self.gl_frame_terminator()
self.unset_rgb_paint_state()
log("%s(%s, %s)", glBindFramebuffer, GL_FRAMEBUFFER,
self.offscreen_fbo)
glBindFramebuffer(GL_FRAMEBUFFER, self.offscreen_fbo)
log("%s.present_fbo() done", self)
def draw_pointer(self):
px, py, _, _, size, start_time = self.pointer_overlay
elapsed = monotonic_time()-start_time
log("pointer_overlay=%s, elapsed=%.1f, timeout=%s, cursor-data=%s",
self.pointer_overlay, elapsed, CURSOR_IDLE_TIMEOUT, (self.cursor_data or [])[:7])
if elapsed>=CURSOR_IDLE_TIMEOUT:
#timeout - stop showing it:
self.pointer_overlay = None
return
x = px
y = py
if not self.cursor_data:
#paint a fake one:
alpha = max(0, (5.0-elapsed)/5.0)
lw = 2
glLineWidth(lw)
glBegin(GL_LINES)
glColor4f(0, 0, 0, alpha)
glVertex2i(x-size, y-lw//2)
glVertex2i(x+size, y-lw//2)
glVertex2i(x, y-size)
glVertex2i(x, y+size)
glEnd()
return
cw = self.cursor_data[3]
ch = self.cursor_data[4]
xhot = self.cursor_data[5]
yhot = self.cursor_data[6]
x = px-xhot
y = py-yhot
if TEXTURE_CURSOR:
#paint the texture containing the cursor:
glActiveTexture(GL_TEXTURE0)
target = GL_TEXTURE_RECTANGLE_ARB
glEnable(target)
glBindTexture(target, self.textures[TEX_CURSOR])
glEnablei(GL_BLEND, self.textures[TEX_CURSOR])
glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA)
glBlendFunc(GL_ONE, GL_ONE)
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE)
glBegin(GL_QUADS)
glTexCoord2i(0, 0)
glVertex2i(x, y)
glTexCoord2i(0, ch)
glVertex2i(x, y+ch)
glTexCoord2i(cw, ch)
glVertex2i(x+cw, y+ch)
glTexCoord2i(cw, 0)
glVertex2i(x+cw, y)
glEnd()
glBindTexture(target, 0)
glDisable(target)
else:
#FUGLY: paint each pixel separately..
if not self.validate_cursor():
return
pixels = self.cursor_data[8]
blen = cw*ch*4
p = struct.unpack(b"B"*blen, pixels)
glLineWidth(1)
#TODO: use VBO arrays to make this faster
for cx in range(cw):
for cy in range(ch):
i = cx*4+cy*cw*4
if p[i+3]>=64:
glBegin(GL_POINTS)
glColor4f(p[i]/256.0, p[i+1]/256.0, p[i+2]/256.0, p[i+3]/256.0)
glVertex2i(x+cx, y+cy)
glEnd()
def do_present_fbo(self):
bw, bh = self.size
ww, wh = self.render_size
rect_count = len(self.pending_fbo_paint)
if self.is_double_buffered() or bw!=ww or bh!=wh:
#refresh the whole window:
rectangles = ((0, 0, bw, bh), )
else:
#paint just the rectangles we have accumulated:
rectangles = self.pending_fbo_paint
self.pending_fbo_paint = []
log("do_present_fbo: painting %s", rectangles)
if SAVE_BUFFERS:
self.save_FBO()
self.gl_marker("Presenting FBO on screen")
# Change state to target screen instead of our FBO
glBindFramebuffer(GL_FRAMEBUFFER, 0)
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0)
left, top, right, bottom = self.offsets
#viewport for clearing the whole window:
glViewport(0, 0, left+ww+right, top+wh+bottom)
if self._alpha_enabled:
# transparent background:
glClearColor(0.0, 0.0, 0.0, 0.0)
else:
# black, no alpha:
glClearColor(0.0, 0.0, 0.0, 1.0)
if left or top or right or bottom:
glClear(GL_COLOR_BUFFER_BIT)
#from now on, take the offsets into account:
glViewport(left, top, ww, wh)
target = GL_TEXTURE_RECTANGLE_ARB
if ww!=bw or wh!=bh:
glTexParameteri(target, GL_TEXTURE_MAG_FILTER, GL_LINEAR)
glTexParameteri(target, GL_TEXTURE_MIN_FILTER, GL_LINEAR)
# Draw FBO texture on screen
glEnable(target) #redundant - done in rgb paint state
glBindTexture(target, self.textures[TEX_FBO])
if self._alpha_enabled:
# support alpha channel if present:
glEnablei(GL_BLEND, self.textures[TEX_FBO])
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE)
glBegin(GL_QUADS)
for x,y,w,h in rectangles:
#note how we invert coordinates..
tx1, ty1, tx2, ty2 = x, bh-y, x+w, bh-y-h
vx1, vy1, vx2, vy2 = x, y, x+w, y+h
glTexCoord2i(tx1, ty1)
glVertex2i(vx1, vy1) #top-left of window viewport
glTexCoord2i(tx1, ty2)
glVertex2i(vx1, vy2) #bottom-left of window viewport
glTexCoord2i(tx2, ty2)
glVertex2i(vx2, vy2) #bottom-right of window viewport
glTexCoord2i(tx2, ty1)
glVertex2i(vx2, vy1) #top-right of window viewport
glEnd()
glBindTexture(target, 0)
glDisable(target)
if self.pointer_overlay:
self.draw_pointer()
if self.paint_spinner:
#add spinner:
self.draw_spinner()
if self.border and self.border.shown:
self.draw_border()
# Show the backbuffer on screen
glFlush()
self.gl_show(rect_count)
self.gl_frame_terminator()
#restore pbo viewport
glViewport(0, 0, bw, bh)
glTexParameteri(target, GL_TEXTURE_MAG_FILTER, GL_NEAREST)
glTexParameteri(target, GL_TEXTURE_MIN_FILTER, GL_NEAREST)
log("%s(%s, %s)", glBindFramebuffer, GL_FRAMEBUFFER, self.offscreen_fbo)
glBindFramebuffer(GL_FRAMEBUFFER, self.offscreen_fbo)
log("%s.do_present_fbo() done", self)
def present_fbo(self, encoding, is_delta, x, y, w, h):
if not self.paint_screen:
return
self.gl_marker("Presenting FBO on screen")
# Change state to target screen instead of our FBO
glBindFramebuffer(GL_FRAMEBUFFER, 0)
if self._alpha_enabled:
# transparent background:
glClearColor(0.0, 0.0, 0.0, 0.0)
else:
# plain white no alpha:
glClearColor(1.0, 1.0, 1.0, 1.0)
# Draw FBO texture on screen
self.set_rgb_paint_state()
ww, wh = self.size
if self.glconfig.is_double_buffered():
#refresh the whole window:
x, y = 0, 0
w, h = ww, wh
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, self.textures[TEX_FBO])
if self._alpha_enabled:
# support alpha channel if present:
glEnablei(GL_BLEND, self.textures[TEX_FBO])
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE)
glBegin(GL_QUADS)
#note how we invert coordinates..
glTexCoord2i(x, wh-y)
glVertex2i(x, y) #top-left of window viewport
glTexCoord2i(x, wh-y-h)
glVertex2i(x, y+h) #bottom-left of window viewport
glTexCoord2i(x+w, wh-y-h)
glVertex2i(x+w, y+h) #bottom-right of window viewport
glTexCoord2i(x+w, wh-y)
glVertex2i(x+w, y) #top-right of window viewport
glEnd()
glDisable(GL_TEXTURE_RECTANGLE_ARB)
#show region being painted:
if OPENGL_PAINT_BOX:
glLineWidth(1)
if is_delta:
glLineStipple(1, 0xf0f0)
glEnable(GL_LINE_STIPPLE)
glBegin(GL_LINE_LOOP)
color = BOX_COLORS.get(encoding, _DEFAULT_BOX_COLOR)
glColor4f(*color)
for px,py in ((x, y), (x+w, y), (x+w, y+h), (x, y+h)):
glVertex2i(px, py)
glEnd()
if is_delta:
glDisable(GL_LINE_STIPPLE)
if self.paint_spinner:
#add spinner:
dim = min(ww/3.0, wh/3.0)
t = time.time()
count = int(t*4.0)
bx = ww//2
by = wh//2
for i in range(8): #8 lines
glBegin(GL_POLYGON)
c = cv.trs[count%8][i]
glColor4f(c, c, c, 1)
mi1 = math.pi*i/4-math.pi/16
mi2 = math.pi*i/4+math.pi/16
glVertex2i(int(bx+math.sin(mi1)*10), int(by+math.cos(mi1)*10))
glVertex2i(int(bx+math.sin(mi1)*dim), int(by+math.cos(mi1)*dim))
glVertex2i(int(bx+math.sin(mi2)*dim), int(by+math.cos(mi2)*dim))
glVertex2i(int(bx+math.sin(mi2)*10), int(by+math.cos(mi2)*10))
glEnd()
#if desired, paint window border
if self.border and self.border.shown:
#double size since half the line will be off-screen
glLineWidth(self.border.size*2)
glBegin(GL_LINE_LOOP)
glColor4f(self.border.red, self.border.green, self.border.blue, self.border.alpha)
for px,py in ((0, 0), (ww, 0), (ww, wh), (0, wh)):
glVertex2i(px, py)
glEnd()
# Show the backbuffer on screen
self.gl_show()
self.gl_frame_terminator()
self.unset_rgb_paint_state()
log("%s(%s, %s)", glBindFramebuffer, GL_FRAMEBUFFER, self.offscreen_fbo)
glBindFramebuffer(GL_FRAMEBUFFER, self.offscreen_fbo)
log("%s.present_fbo() done", self)
def do_present_fbo(self):
bw, bh = self.size
ww, wh = self.render_size
self.gl_marker("Presenting FBO on screen")
# Change state to target screen instead of our FBO
glBindFramebuffer(GL_FRAMEBUFFER, 0)
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0)
if self._alpha_enabled:
# transparent background:
glClearColor(0.0, 0.0, 0.0, 0.0)
else:
# plain white no alpha:
glClearColor(1.0, 1.0, 1.0, 1.0)
# Draw FBO texture on screen
self.set_rgb_paint_state()
rect_count = len(self.pending_fbo_paint)
if self.glconfig.is_double_buffered() or bw!=ww or bh!=wh:
#refresh the whole window:
rectangles = ((0, 0, bw, bh), )
else:
#paint just the rectangles we have accumulated:
rectangles = self.pending_fbo_paint
self.pending_fbo_paint = []
log("do_present_fbo: painting %s", rectangles)
glEnable(GL_TEXTURE_RECTANGLE_ARB)
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, self.textures[TEX_FBO])
if self._alpha_enabled:
# support alpha channel if present:
glEnablei(GL_BLEND, self.textures[TEX_FBO])
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE)
if SAVE_BUFFERS:
glBindFramebuffer(GL_READ_FRAMEBUFFER, self.offscreen_fbo)
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, self.textures[TEX_FBO])
glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_RECTANGLE_ARB, self.textures[TEX_FBO], 0)
glReadBuffer(GL_COLOR_ATTACHMENT0)
glViewport(0, 0, bw, bh)
from OpenGL.GL import glGetTexImage
size = bw*bh*4
import numpy
data = numpy.empty(size)
img_data = glGetTexImage(GL_TEXTURE_RECTANGLE_ARB, 0, GL_BGRA, GL_UNSIGNED_BYTE, data)
from PIL import Image, ImageOps
img = Image.frombuffer("RGBA", (bw, bh), img_data, "raw", "BGRA", bw*4)
img = ImageOps.flip(img)
kwargs = {}
if SAVE_BUFFERS=="jpeg":
kwargs = {
"quality" : 0,
"optimize" : False,
}
t = time.time()
tstr = time.strftime("%H-%M-%S", time.localtime(t))
filename = "./W%i-FBO-%s.%03i.%s" % (self.wid, tstr, (t*1000)%1000, SAVE_BUFFERS)
log("do_present_fbo: saving %4ix%-4i pixels, %7i bytes to %s", bw, bh, size, filename)
img.save(filename, SAVE_BUFFERS, **kwargs)
glBindFramebuffer(GL_READ_FRAMEBUFFER, 0)
#viewport for painting to window:
glViewport(0, 0, ww, wh)
if ww!=bw or wh!=bh:
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, GL_LINEAR)
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_LINEAR)
glBegin(GL_QUADS)
for x,y,w,h in rectangles:
#note how we invert coordinates..
tx1, ty1, tx2, ty2 = x, bh-y, x+w, bh-y-h
vx1, vy1, vx2, vy2 = x, y, x+w, y+h
glTexCoord2i(tx1, ty1)
glVertex2i(vx1, vy1) #top-left of window viewport
glTexCoord2i(tx1, ty2)
glVertex2i(vx1, vy2) #bottom-left of window viewport
glTexCoord2i(tx2, ty2)
glVertex2i(vx2, vy2) #bottom-right of window viewport
glTexCoord2i(tx2, ty1)
glVertex2i(vx2, vy1) #top-right of window viewport
glEnd()
glDisable(GL_TEXTURE_RECTANGLE_ARB)
if self.paint_spinner:
#add spinner:
dim = min(bw/3.0, bh/3.0)
t = time.time()
count = int(t*4.0)
bx = bw//2
by = bh//2
for i in range(8): #8 lines
glBegin(GL_POLYGON)
c = cv.trs[count%8][i]
glColor4f(c, c, c, 1)
mi1 = math.pi*i/4-math.pi/16
mi2 = math.pi*i/4+math.pi/16
glVertex2i(int(bx+math.sin(mi1)*10), int(by+math.cos(mi1)*10))
glVertex2i(int(bx+math.sin(mi1)*dim), int(by+math.cos(mi1)*dim))
glVertex2i(int(bx+math.sin(mi2)*dim), int(by+math.cos(mi2)*dim))
glVertex2i(int(bx+math.sin(mi2)*10), int(by+math.cos(mi2)*10))
glEnd()
#if desired, paint window border
if self.border and self.border.shown:
#double size since half the line will be off-screen
glLineWidth(self.border.size*2)
glBegin(GL_LINE_LOOP)
glColor4f(self.border.red, self.border.green, self.border.blue, self.border.alpha)
for px,py in ((0, 0), (bw, 0), (bw, bh), (0, bh)):
glVertex2i(px, py)
glEnd()
if self.pointer_overlay:
x, y, _, _, size, start_time = self.pointer_overlay
elapsed = time.time()-start_time
if elapsed<6:
alpha = max(0, (5.0-elapsed)/5.0)
glLineWidth(1)
glBegin(GL_LINES)
glColor4f(0, 0, 0, alpha)
glVertex2i(x-size, y)
glVertex2i(x+size, y)
glVertex2i(x, y-size)
glVertex2i(x, y+size)
glEnd()
else:
self.pointer_overlay = None
# Show the backbuffer on screen
self.gl_show(rect_count)
self.gl_frame_terminator()
#restore pbo viewport
glViewport(0, 0, bw, bh)
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, GL_NEAREST)
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_NEAREST)
self.unset_rgb_paint_state()
log("%s(%s, %s)", glBindFramebuffer, GL_FRAMEBUFFER, self.offscreen_fbo)
glBindFramebuffer(GL_FRAMEBUFFER, self.offscreen_fbo)
log("%s.do_present_fbo() done", self)
def present_fbo(self, drawable):
if not self.paint_screen:
return
self.gl_marker("Presenting FBO on screen for drawable %s" % drawable)
assert drawable
# Change state to target screen instead of our FBO
glBindFramebuffer(GL_FRAMEBUFFER, 0)
if self._alpha_enabled:
# transparent background:
glClearColor(0.0, 0.0, 0.0, 0.0)
else:
# plain white no alpha:
glClearColor(1.0, 1.0, 1.0, 1.0)
# Draw FBO texture on screen
self.set_rgb_paint_state()
w, h = self.size
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, self.textures[TEX_FBO])
if self._alpha_enabled:
# support alpha channel if present:
glEnablei(GL_BLEND, self.textures[TEX_FBO])
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE)
glBegin(GL_QUADS)
glTexCoord2i(0, h)
glVertex2i(0, 0)
glTexCoord2i(0, 0)
glVertex2i(0, h)
glTexCoord2i(w, 0)
glVertex2i(w, h)
glTexCoord2i(w, h)
glVertex2i(w, 0)
glEnd()
glDisable(GL_TEXTURE_RECTANGLE_ARB)
if self.paint_spinner:
#add spinner:
dim = min(w / 3.0, h / 3.0)
t = time.time()
count = int(t * 4.0)
bx = w // 2
by = h // 2
for i in range(8): #8 lines
glBegin(GL_POLYGON)
c = cv.trs[count % 8][i]
glColor4f(c, c, c, 1)
mi1 = math.pi * i / 4 - math.pi / 16
mi2 = math.pi * i / 4 + math.pi / 16
glVertex2i(int(bx + math.sin(mi1) * 10),
int(by + math.cos(mi1) * 10))
glVertex2i(int(bx + math.sin(mi1) * dim),
int(by + math.cos(mi1) * dim))
glVertex2i(int(bx + math.sin(mi2) * dim),
int(by + math.cos(mi2) * dim))
glVertex2i(int(bx + math.sin(mi2) * 10),
int(by + math.cos(mi2) * 10))
glEnd()
#if desired, paint window border
if self.border and self.border.shown:
glDisable(GL_TEXTURE_RECTANGLE_ARB)
#double size since half the line will be off-screen
glLineWidth(self.border.size * 2)
glBegin(GL_LINE_LOOP)
glColor4f(self.border.red, self.border.green, self.border.blue,
self.border.alpha)
for px, py in ((0, 0), (w, 0), (w, h), (0, h)):
glVertex2i(px, py)
glEnd()
#reset color to default
glColor4f(1.0, 1.0, 1.0, 1.0)
# Show the backbuffer on screen
if drawable.is_double_buffered():
log("%s.present_fbo() swapping buffers now", self)
drawable.swap_buffers()
# Clear the new backbuffer to illustrate that its contents are undefined
glClear(GL_COLOR_BUFFER_BIT)
else:
glFlush()
self.gl_frame_terminator()
self.unset_rgb_paint_state()
glBindFramebuffer(GL_FRAMEBUFFER, self.offscreen_fbo)
log("%s.present_fbo() done", self)