def update_texture_yuv(self, img_data, x, y, width, height, rowstrides, pixel_format):
assert x==0 and y==0
assert self.textures is not None, "no OpenGL textures!"
if self.pixel_format is None or self.pixel_format!=pixel_format or self.texture_size!=(width, height):
self.pixel_format = pixel_format
self.texture_size = (width, height)
divs = get_subsampling_divs(pixel_format)
debug("GL creating new YUV textures for pixel format %s using divs=%s", pixel_format, divs)
self.gl_marker("Creating new YUV textures")
# Create textures of the same size as the window's
glEnable(GL_TEXTURE_RECTANGLE_ARB)
for texture, index in ((GL_TEXTURE0, 0), (GL_TEXTURE1, 1), (GL_TEXTURE2, 2)):
(div_w, div_h) = divs[index]
glActiveTexture(texture)
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, self.textures[index])
glEnable(GL_TEXTURE_RECTANGLE_ARB)
mag_filter = GL_NEAREST
if div_w > 1 or div_h > 1:
mag_filter = GL_LINEAR
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, mag_filter)
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_NEAREST)
glTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, GL_LUMINANCE, width/div_w, height/div_h, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, 0)
debug("Assigning fragment program")
glEnable(GL_FRAGMENT_PROGRAM_ARB)
if not self.yuv_shader:
self.yuv_shader = [ 1 ]
glGenProgramsARB(1, self.yuv_shader)
glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, self.yuv_shader[0])
prog = GL_COLORSPACE_CONVERSIONS
glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB, len(prog), prog)
err = glGetString(GL_PROGRAM_ERROR_STRING_ARB)
if err:
#FIXME: maybe we should do something else here?
log.error(err)
self.gl_marker("Updating YUV textures")
divs = get_subsampling_divs(pixel_format)
U_width = 0
U_height = 0
for texture, index in ((GL_TEXTURE0, 0), (GL_TEXTURE1, 1), (GL_TEXTURE2, 2)):
(div_w, div_h) = divs[index]
glActiveTexture(texture)
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, self.textures[index])
glPixelStorei(GL_UNPACK_ROW_LENGTH, rowstrides[index])
glTexSubImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, x, y, width/div_w, height/div_h, GL_LUMINANCE, GL_UNSIGNED_BYTE, img_data[index])
if index == 1:
U_width = width/div_w
U_height = height/div_h
elif index == 2:
if width/div_w != U_width:
log.error("Width of V plane is %d, differs from width of corresponding U plane (%d), pixel_format is %d", width/div_w, U_width, pixel_format)
if height/div_h != U_height:
log.error("Height of V plane is %d, differs from height of corresponding U plane (%d)", height/div_h, U_height)
def render_yuv_update(self, rx, ry, rw, rh):
debug("render_yuv_update %sx%s at %sx%s pixel_format=%s", rw, rh, rx,
ry, self.pixel_format)
if self.pixel_format not in (YUV420P, YUV422P, YUV444P):
#not ready to render yet
return
self.gl_marker("Painting YUV update")
divs = get_subsampling_divs(self.pixel_format)
glEnable(GL_FRAGMENT_PROGRAM_ARB)
glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, self.yuv_shader[0])
for texture, index in ((GL_TEXTURE0, 0), (GL_TEXTURE1, 1),
(GL_TEXTURE2, 2)):
glActiveTexture(texture)
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, self.textures[index])
tw, th = self.texture_size
debug("render_yuv_update texture_size=%s, size=%s", self.texture_size,
self.size)
glBegin(GL_QUADS)
for x, y in ((rx, ry), (rx, ry + rh), (rx + rw, ry + rh), (rx + rw,
ry)):
ax = min(tw, x)
ay = min(th, y)
for texture, index in ((GL_TEXTURE0, 0), (GL_TEXTURE1, 1),
(GL_TEXTURE2, 2)):
(div_w, div_h) = divs[index]
glMultiTexCoord2i(texture, ax / div_w, ay / div_h)
glVertex2i(ax, ay)
glEnd()
def render_yuv_update(self, rx, ry, rw, rh):
debug("render_yuv_update %sx%s at %sx%s pixel_format=%s", rw, rh, rx, ry, self.pixel_format)
if self.pixel_format not in (YUV420P, YUV422P, YUV444P):
#not ready to render yet
return
self.gl_marker("Painting YUV update")
divs = get_subsampling_divs(self.pixel_format)
glEnable(GL_FRAGMENT_PROGRAM_ARB)
glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, self.yuv_shader[0])
for texture, index in ((GL_TEXTURE0, 0), (GL_TEXTURE1, 1), (GL_TEXTURE2, 2)):
glActiveTexture(texture)
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, self.textures[index])
tw, th = self.texture_size
debug("render_yuv_update texture_size=%s, size=%s", self.texture_size, self.size)
glBegin(GL_QUADS)
for x,y in ((rx, ry), (rx, ry+rh), (rx+rw, ry+rh), (rx+rw, ry)):
ax = min(tw, x)
ay = min(th, y)
for texture, index in ((GL_TEXTURE0, 0), (GL_TEXTURE1, 1), (GL_TEXTURE2, 2)):
(div_w, div_h) = divs[index]
glMultiTexCoord2i(texture, ax/div_w, ay/div_h)
glVertex2i(ax, ay)
glEnd()
def update_texture_yuv(self, img_data, x, y, width, height, rowstrides,
pixel_format):
assert x == 0 and y == 0
assert self.textures is not None, "no OpenGL textures!"
if self.pixel_format is None or self.pixel_format != pixel_format or self.texture_size != (
width, height):
self.pixel_format = pixel_format
self.texture_size = (width, height)
divs = get_subsampling_divs(pixel_format)
debug(
"GL creating new YUV textures for pixel format %s using divs=%s",
pixel_format, divs)
self.gl_marker("Creating new YUV textures")
# Create textures of the same size as the window's
glEnable(GL_TEXTURE_RECTANGLE_ARB)
for texture, index in ((GL_TEXTURE0, 0), (GL_TEXTURE1, 1),
(GL_TEXTURE2, 2)):
(div_w, div_h) = divs[index]
glActiveTexture(texture)
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, self.textures[index])
glEnable(GL_TEXTURE_RECTANGLE_ARB)
mag_filter = GL_NEAREST
if div_w > 1 or div_h > 1:
mag_filter = GL_LINEAR
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB,
GL_TEXTURE_MAG_FILTER, mag_filter)
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB,
GL_TEXTURE_MIN_FILTER, GL_NEAREST)
glTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, GL_LUMINANCE,
width / div_w, height / div_h, 0, GL_LUMINANCE,
GL_UNSIGNED_BYTE, 0)
debug("Assigning fragment program")
glEnable(GL_FRAGMENT_PROGRAM_ARB)
if not self.yuv_shader:
self.yuv_shader = [1]
glGenProgramsARB(1, self.yuv_shader)
glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, self.yuv_shader[0])
prog = GL_COLORSPACE_CONVERSIONS
glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB,
GL_PROGRAM_FORMAT_ASCII_ARB, len(prog),
prog)
err = glGetString(GL_PROGRAM_ERROR_STRING_ARB)
if err:
#FIXME: maybe we should do something else here?
log.error(err)
self.gl_marker("Updating YUV textures")
divs = get_subsampling_divs(pixel_format)
U_width = 0
U_height = 0
for texture, index in ((GL_TEXTURE0, 0), (GL_TEXTURE1, 1),
(GL_TEXTURE2, 2)):
(div_w, div_h) = divs[index]
glActiveTexture(texture)
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, self.textures[index])
glPixelStorei(GL_UNPACK_ROW_LENGTH, rowstrides[index])
glTexSubImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, x, y, width / div_w,
height / div_h, GL_LUMINANCE, GL_UNSIGNED_BYTE,
img_data[index])
if index == 1:
U_width = width / div_w
U_height = height / div_h
elif index == 2:
if width / div_w != U_width:
log.error(
"Width of V plane is %d, differs from width of corresponding U plane (%d), pixel_format is %d",
width / div_w, U_width, pixel_format)
if height / div_h != U_height:
log.error(
"Height of V plane is %d, differs from height of corresponding U plane (%d)",
height / div_h, U_height)
