diff options
Diffstat (limited to '')
| -rw-r--r-- | libcoopgamma.pyx (renamed from src/libcoopgamma_native.pyx.gpp) | 1289 |
1 files changed, 1218 insertions, 71 deletions
diff --git a/src/libcoopgamma_native.pyx.gpp b/libcoopgamma.pyx index eee05ec..57a53a4 100644 --- a/src/libcoopgamma_native.pyx.gpp +++ b/libcoopgamma.pyx @@ -1,21 +1,5 @@ # -*- python -*- -''' -pylibcoopgamma -- Python library for interfacing with cooperative gamma servers -Copyright (C) 2016 Mattias Andrée (maandree@kth.se) - -This library is free software: you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation, either version 3 of the License, or -(at your option) any later version. - -This library is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this library. If not, see <http://www.gnu.org/licenses/>. -''' +# See LICENSE file for copyright and license details. cimport cython from libc.stddef cimport size_t @@ -23,6 +7,7 @@ from libc.stdlib cimport calloc, malloc, free from libc.stdint cimport int64_t, uint8_t, uint16_t, uint32_t, uint64_t, intptr_t from libc.errno cimport errno +import enum as _enum ctypedef int libcoopgamma_support_t @@ -90,13 +75,6 @@ cdef extern from "include-libcoopgamma.h": # and `.blue_size` are undefined libcoopgamma_support_t supported # The data type and bit-depth of the ramp stops -$$<cpp <<EOF | tail -n 1 | sed '/#/d' -#include <limits.h> -#if INT_MAX != LONG_MAX - int padding__ -#endif -EOF -$$> size_t red_size # The number of stops in the red ramp size_t green_size @@ -138,13 +116,6 @@ $$> # The CRTC for which the the current filters shall returned int coalesce # Whether to coalesce all filters into one gamma ramp triplet -$$<cpp <<EOF | tail -n 1 | sed '/#/d' -#include <limits.h> -#if INT_MAX != LONG_MAX - int padding__ -#endif -EOF -$$> ctypedef struct libcoopgamma_queried_filter_t: # Stripped down version of `libcoopgamma_filter` which only contains @@ -176,13 +147,6 @@ $$> # and `.filters->priority` is undefined. libcoopgamma_depth_t depth # The data type and bit-depth of the ramp stops -$$<cpp <<EOF | tail -n 1 | sed '/#/d' -#include <limits.h> -#if INT_MAX != LONG_MAX - int padding__ -#endif -EOF -$$> ctypedef struct libcoopgamma_error_t: # Error message from coopgamma server @@ -792,7 +756,7 @@ operation without disconnection from the server -def libcoopgamma_native_get_methods(): +def _libcoopgamma_native_get_methods(): ''' List all recognised adjustment method @@ -818,7 +782,7 @@ def libcoopgamma_native_get_methods(): return ret -def libcoopgamma_native_get_method_and_site(method : str, site : str): +def _libcoopgamma_native_get_method_and_site(method : str, site : str): ''' Get the adjustment method and site @@ -866,7 +830,7 @@ def libcoopgamma_native_get_method_and_site(method : str, site : str): free(rcssite) -def libcoopgamma_native_get_pid_file(method : str, site : str): +def _libcoopgamma_native_get_pid_file(method : str, site : str): ''' Get the PID file of the coopgamma server @@ -904,7 +868,7 @@ def libcoopgamma_native_get_pid_file(method : str, site : str): return int(errno) -def libcoopgamma_native_get_socket_file(method : str, site : str): +def _libcoopgamma_native_get_socket_file(method : str, site : str): ''' Get the socket file of the coopgamma server @@ -943,7 +907,7 @@ def libcoopgamma_native_get_socket_file(method : str, site : str): return int(errno) -def libcoopgamma_native_context_create(): +def _libcoopgamma_native_context_create(): ''' Create an instance of `libcoopgamma_context_t` @@ -963,7 +927,7 @@ def libcoopgamma_native_context_create(): return (True, int(<intptr_t><void*>this)) -def libcoopgamma_native_context_free(address : int): +def _libcoopgamma_native_context_free(address : int): ''' Disconnect and free an instance of a `libcoopgamma_context_t` @@ -974,7 +938,7 @@ def libcoopgamma_native_context_free(address : int): free(this) -def libcoopgamma_native_context_marshal(address : int): +def _libcoopgamma_native_context_marshal(address : int): ''' Marshal a `libcoopgamma_context_t` into a buffer @@ -994,7 +958,7 @@ def libcoopgamma_native_context_marshal(address : int): free(buf) -def libcoopgamma_native_context_unmarshal(buf : bytes): +def _libcoopgamma_native_context_unmarshal(buf : bytes): ''' Unmarshal a `libcoopgamma_context_t` from a buffer @@ -1032,7 +996,7 @@ def libcoopgamma_native_context_unmarshal(buf : bytes): free(bs) -def libcoopgamma_native_context_set_fd(address : int, fd : int): +def _libcoopgamma_native_context_set_fd(address : int, fd : int): ''' Set the field for socket file descriptor in a `libcoopgamma_context_t` @@ -1043,7 +1007,7 @@ def libcoopgamma_native_context_set_fd(address : int, fd : int): this.fd = fd -def libcoopgamma_native_async_context_create(): +def _libcoopgamma_native_async_context_create(): ''' Create an instance of `libcoopgamma_context_t` @@ -1063,7 +1027,7 @@ def libcoopgamma_native_async_context_create(): return (True, int(<intptr_t><void*>this)) -def libcoopgamma_native_async_context_free(address : int): +def _libcoopgamma_native_async_context_free(address : int): ''' Free an instance of a `libcoopgamma_async_context_t` @@ -1074,7 +1038,7 @@ def libcoopgamma_native_async_context_free(address : int): free(this) -def libcoopgamma_native_async_context_marshal(address : int): +def _libcoopgamma_native_async_context_marshal(address : int): ''' Marshal a `libcoopgamma_async_context_t` into a buffer @@ -1095,7 +1059,7 @@ def libcoopgamma_native_async_context_marshal(address : int): return ret -def libcoopgamma_native_async_context_unmarshal(buf : bytes): +def _libcoopgamma_native_async_context_unmarshal(buf : bytes): ''' Unmarshal a `libcoopgamma_async_context_t` from a buffer @@ -1133,7 +1097,7 @@ def libcoopgamma_native_async_context_unmarshal(buf : bytes): free(bs) -def libcoopgamma_native_connect(method : str, site : str, address : int): +def _libcoopgamma_native_connect(method : str, site : str, address : int): ''' Connect to a coopgamma server, and start it if necessary @@ -1170,7 +1134,7 @@ def libcoopgamma_native_connect(method : str, site : str, address : int): free(csite) -def libcoopgamma_native_set_nonblocking(address : int, nonblocking : bool): +def _libcoopgamma_native_set_nonblocking(address : int, nonblocking : bool): ''' By default communication is blocking, this function can be used to switch between blocking and nonblocking @@ -1192,7 +1156,7 @@ def libcoopgamma_native_set_nonblocking(address : int, nonblocking : bool): return 0 -def libcoopgamma_native_flush(address : int): +def _libcoopgamma_native_flush(address : int): ''' Send all pending outbound data @@ -1211,7 +1175,7 @@ def libcoopgamma_native_flush(address : int): return 0 -def libcoopgamma_native_synchronise(address : int, pending : list): +def _libcoopgamma_native_synchronise(address : int, pending : list): ''' Wait for the next message to be received @@ -1238,7 +1202,7 @@ def libcoopgamma_native_synchronise(address : int, pending : list): return (True, <int>selected) -def libcoopgamma_native_skip_message(address : int): +def _libcoopgamma_native_skip_message(address : int): ''' Tell the library that you will not be parsing a receive message @@ -1247,7 +1211,7 @@ def libcoopgamma_native_skip_message(address : int): libcoopgamma_skip_message(<libcoopgamma_context_t*><void*><intptr_t>address) -def libcoopgamma_native_get_crtcs_send(address : int, async_ctx : int): +def _libcoopgamma_native_get_crtcs_send(address : int, async_ctx : int): ''' List all available CRTC:s, send request part @@ -1262,7 +1226,7 @@ def libcoopgamma_native_get_crtcs_send(address : int, async_ctx : int): return 0 -def libcoopgamma_native_get_crtcs_recv(address : int, async_ctx : int): +def _libcoopgamma_native_get_crtcs_recv(address : int, async_ctx : int): ''' List all available CRTC:s, receive response part @@ -1288,7 +1252,7 @@ def libcoopgamma_native_get_crtcs_recv(address : int, async_ctx : int): return ret -def libcoopgamma_native_get_crtcs_sync(address : int): +def _libcoopgamma_native_get_crtcs_sync(address : int): ''' List all available CRTC:s, synchronous version @@ -1319,7 +1283,7 @@ def libcoopgamma_native_get_crtcs_sync(address : int): return ret -def libcoopgamma_native_get_gamma_info_send(crtc : str, address : int, async_ctx : int): +def _libcoopgamma_native_get_gamma_info_send(crtc : str, address : int, async_ctx : int): ''' Retrieve information about a CRTC:s gamma ramps, send request part @@ -1348,7 +1312,7 @@ def libcoopgamma_native_get_gamma_info_send(crtc : str, address : int, async_ctx return 0 -def libcoopgamma_native_get_gamma_info_recv(address : int, async_ctx : int): +def _libcoopgamma_native_get_gamma_info_recv(address : int, async_ctx : int): ''' Retrieve information about a CRTC:s gamma ramps, receive response part @@ -1383,7 +1347,7 @@ def libcoopgamma_native_get_gamma_info_recv(address : int, async_ctx : int): return ret -def libcoopgamma_native_get_gamma_info_sync(crtc : str, address : int): +def _libcoopgamma_native_get_gamma_info_sync(crtc : str, address : int): ''' Retrieve information about a CRTC:s gamma ramps, synchronous version @@ -1428,7 +1392,7 @@ def libcoopgamma_native_get_gamma_info_sync(crtc : str, address : int): return ret -def libcoopgamma_native_get_gamma_send(query, address : int, async_ctx : int): +def _libcoopgamma_native_get_gamma_send(query, address : int, async_ctx : int): ''' Retrieve the current gamma ramp adjustments, send request part @@ -1461,7 +1425,7 @@ def libcoopgamma_native_get_gamma_send(query, address : int, async_ctx : int): return 0 -def libcoopgamma_native_get_gamma_recv(address : int, async_ctx : int): +def _libcoopgamma_native_get_gamma_recv(address : int, async_ctx : int): ''' Retrieve the current gamma ramp adjustments, receive response part @@ -1549,7 +1513,7 @@ def libcoopgamma_native_get_gamma_recv(address : int, async_ctx : int): return ret -def libcoopgamma_native_get_gamma_sync(query, address : int): +def _libcoopgamma_native_get_gamma_sync(query, address : int): ''' Retrieve the current gamma ramp adjustments, synchronous version @@ -1656,7 +1620,7 @@ def libcoopgamma_native_get_gamma_sync(query, address : int): return ret -def libcoopgamma_native_copy_ramps(intptr_t dest_address, src, libcoopgamma_depth_t depth): +def _libcoopgamma_native_copy_ramps(intptr_t dest_address, src, libcoopgamma_depth_t depth): ''' Copy a Python ramp-trio into C ramp-trio @@ -1766,7 +1730,7 @@ def libcoopgamma_native_copy_ramps(intptr_t dest_address, src, libcoopgamma_dept dest.u_blue = <void*>bd -def libcoopgamma_native_set_gamma_send(filtr, address : int, async_ctx : int): +def _libcoopgamma_native_set_gamma_send(filtr, address : int, async_ctx : int): ''' Apply, update, or remove a gamma ramp adjustment, send request part @@ -1797,7 +1761,7 @@ def libcoopgamma_native_set_gamma_send(filtr, address : int, async_ctx : int): flr.ramps.u_blue = NULL try: if filtr.ramps is not None: - libcoopgamma_native_copy_ramps(<intptr_t><void*>&(flr.ramps), filtr.ramps, flr.depth) + _libcoopgamma_native_copy_ramps(<intptr_t><void*>&(flr.ramps), filtr.ramps, flr.depth) flr.crtc = <char*>malloc(len(crtc_bs) * sizeof(char)) if flr.crtc is NULL: return int(errno) @@ -1817,7 +1781,7 @@ def libcoopgamma_native_set_gamma_send(filtr, address : int, async_ctx : int): return 0 -def libcoopgamma_native_set_gamma_recv(address : int, async_ctx : int): +def _libcoopgamma_native_set_gamma_recv(address : int, async_ctx : int): ''' Apply, update, or remove a gamma ramp adjustment, receive response part @@ -1839,7 +1803,7 @@ def libcoopgamma_native_set_gamma_recv(address : int, async_ctx : int): return None -def libcoopgamma_native_set_gamma_sync(filtr, address : int): +def _libcoopgamma_native_set_gamma_sync(filtr, address : int): ''' Apply, update, or remove a gamma ramp adjustment, synchronous version @@ -1873,7 +1837,7 @@ def libcoopgamma_native_set_gamma_sync(filtr, address : int): flr.ramps.u_blue = NULL try: if filtr.ramps is not None: - libcoopgamma_native_copy_ramps(<intptr_t><void*>&(flr.ramps), filtr.ramps, flr.depth) + _libcoopgamma_native_copy_ramps(<intptr_t><void*>&(flr.ramps), filtr.ramps, flr.depth) flr.crtc = <char*>malloc(len(crtc_bs) * sizeof(char)) if flr.crtc is NULL: return int(errno) @@ -1896,3 +1860,1186 @@ def libcoopgamma_native_set_gamma_sync(filtr, address : int): free(flr.ramps.u_red) return None + +class Support(_enum.IntEnum): + ''' + Values used to indicate the support for gamma adjustments + + @value NO=0 Gamma adjustments are not supported + @value MAYBE=1 Don't know whether gamma adjustments are supported + @value YES=2 Gamma adjustments are supported + ''' + NO = 0 + MAYBE = 1 + YES = 2 + + @staticmethod + def str(v): + ''' + Get string representation of a value + + @param v:int The value, must be value of the enum + @return :str Human-readable string representation of the value + ''' + if v == Support.NO: + return 'no' + if v == Support.YES: + return 'yes' + if v == Support.MAYBE: + return 'maybe' + raise ValueError() + + +class Depth(_enum.IntEnum): + ''' + Values used to tell which datatype is used for the gamma ramp stops + + The values will always be the number of bits for integral types, and + negative for floating-point types + + @value UINT8=8 Unsigned 8-bit integer + @value UINT16=16 Unsigned 16-bit integer + @value UINT32=32 Unsigned 32-bit integer + @value UINT64=64 Unsigned 64-bit integer + @value FLOAT<0 Single-precision floating-point + @value DOUBLE<0 Double-precision floating-point + ''' + UINT8 = 8 + UINT16 = 16 + UINT32 = 32 + UINT64 = 64 + FLOAT = -1 + DOUBLE = -2 + + @staticmethod + def str(v): + ''' + Get string representation of a value + + @param v:int The value, must be value of the enum + @return :str Human-readable string representation of the value + ''' + if v == Depth.UINT8: + return '8-bits' + if v == Depth.UINT16: + return '16-bits' + if v == Depth.UINT32: + return '32-bits' + if v == Depth.UINT64: + return '64-bits' + if v == Depth.FLOAT: + return 'single-precision floating-point' + if v == Depth.DOUBLE: + return 'double-precision floating-point' + raise ValueError() + + +class Lifespan(_enum.IntEnum): + ''' + Values used to tell when a filter should be removed + + @value REMOVE=0 Remove the filter now + @value UNTIL_DEATH>0 Remove the filter when disconnecting from the coopgamma server + @value UNTIL_REMOVAL>0 Only remove the filter when it is explicitly requested + ''' + REMOVE = 0 + UNTIL_DEATH = 1 + UNTIL_REMOVAL = 2 + + @staticmethod + def str(v): + ''' + Get string representation of a value + + @param v:int The value, must be value of the enum + @return :str Human-readable string representation of the value + ''' + if v == Lifespan.REMOVE: + return 'remove' + if v == Lifespan.UNTIL_DEATH: + return 'until death' + if v == Lifespan.UNTIL_REMOVAL: + return 'until removal' + raise ValueError() + + +class Colourspace(_enum.IntEnum): + ''' + Colourspaces + + @value UNKNOWN=0 The colourspace is unknown + @value SRGB>0 sRGB (Standard RGB) + @value RGB>0 RGB other than sRGB + @value NON_RGB>0 Non-RGB multicolour + @value GREY>0 Monochrome, greyscale, or some other singlecolour scale + ''' + UNKNOWN = 0 + SRGB = 1 + RGB = 2 + NON_RGB = 3 + GREY = 4 + + @staticmethod + def str(v): + ''' + Get string representation of a value + + @param v:int The value, must be value of the enum + @return :str Human-readable string representation of the value + ''' + if v == Colourspace.UNKNOWN: + return 'unknown' + if v == Colourspace.SRGB: + return 'sRGB' + if v == Colourspace.RGB: + return 'RGB' + if v == Colourspace.NON_RGB: + return 'non-RGB' + if v == Colourspace.GREY: + return 'greyscale' + raise ValueError() + + +class Ramps: + ''' + Gamma ramp structure + + @variable red:list<int> The red gamma ramp + @variable green:list<int> The green gamma ramp + @variable blue:list<int> The blue gamma ramp + ''' + def __init__(self, red, green, blue): + ''' + Constructor + + @param red:int The number of stops in the red ramp + @param green:int The number of stops in the green ramp + @param blue:int The number of stops in the blue ramp + + -- or -- + + @param red:list<int> The red gamma ramp + @param green:list<int> The green gamma ramp + @param blue:list<int> The blue gamma ramp + ''' + if isinstance(red, list): + self.red = list(red) + self.green = list(green) + self.blue = list(blue) + else: + self.red = [0] * red + self.green = [0] * green + self.blue = [0] * blue + + def clone(self): + ''' + Create a copy of the instance + ''' + return Ramps(self.red, self.green, self.blue) + + def __repr__(self): + ''' + Create a parsable string representation of the instance + + @return :str Parsable representation of the instance + ''' + params = (self.red, self.green, self.blue) + return 'libcoopgamma.Ramps(%s)' % ', '.join(repr(p) for p in params) + + +class Filter: + ''' + Data set to the coopgamma server to apply, update, or remove a filter + + @variable priority:int The priority of the filter, higher priority + is applied first. The gamma correction should + have priority 0. This is a signed 64-bit integer. + @variable crtc:str The CRTC for which this filter shall be applied + @variable fclass:str Identifier for the filter. + The syntax must be "${PACKAGE_NAME}::${COMMAND_NAME}::${RULE}". + @variable lifespan:Lifespan When shall the filter be removed? + If this member's value is `LIBCOOPGAMMA_REMOVE`, + only `.crtc` and `.class` need also be defined. + @variable depth:Depth The data type and bit-depth of the ramp stops + @variable ramps:Ramps The gamma ramp adjustments of the filter + ''' + def __init__(self, priority = None, crtc = None, fclass = None, lifespan = None, depth = None, ramps = None): + ''' + Constructor + + @param priority:int The priority of the filter, higher priority + is applied first. The gamma correction should + have priority 0. This is a signed 64-bit integer. + @param crtc:str The CRTC for which this filter shall be applied + @param fclass:str Identifier for the filter. + The syntax must be "${PACKAGE_NAME}::${COMMAND_NAME}::${RULE}". + @param lifespan:Lifespan When shall the filter be removed? + If this member's value is `LIBCOOPGAMMA_REMOVE`, + only `.crtc` and `.class` need also be defined. + @param depth:Depth The data type and bit-depth of the ramp stops + @param ramps:Ramps The gamma ramp adjustments of the filter + ''' + self.priority = priority + self.crtc = crtc + self.fclass = fclass + self.lifespan = lifespan + self.depth = depth + self.ramps = ramps + + def clone(self, shallow = False): + ''' + Create a copy of the instance + + @param shallow:bool Create a shallow copy? + ''' + ramps = self.ramps if shallow else self.ramps.clone() + return Filter(self.priority, self.crtc, self.fclass, self.lifespan, self.depth, ramps) + + def __repr__(self): + ''' + Create a parsable string representation of the instance + + @return :str Parsable representation of the instance + ''' + params = (self.priority, self.crtc, self.fclass, self.lifespan, self.depth, self.ramps) + return 'libcoopgamma.Filter(%s)' % ', '.join(repr(p) for p in params) + + +class GamutPoint: + ''' + The x- and y-values (CIE xyY) of a colour + + @variable x_raw:int The x-value (CIE xyY) multiplied by 1024 + @variable y_raw:int The y-value (CIE xyY) multiplied by 1024 + @variable x:int The x-value (CIE xyY) + @variable y:int The y-value (CIE xyY) + ''' + def __init__(self, x, y): + ''' + Constructor + + @param x:int The x-value (CIE xyY) multiplied by 1024 + @param y:int The y-value (CIE xyY) multiplied by 1024 + ''' + self.x_raw, self.x = x, x / 1024 + self.y_raw, self.y = y, y / 1024 + + def clone(self): + ''' + Create a copy of the instance + ''' + return GamutPoint(self.x_raw, self.y_raw) + + def __repr__(self): + ''' + Create a parsable string representation of the instance + + @return :str Parsable representation of the instance + ''' + params = (self.x_raw, self.y_raw) + return 'libcoopgamma.GamutPoint(%s)' % ', '.join(repr(p) for p in params) + + def __str__(self): + ''' + Get human-readable string representation of instance + + @return :str Human-readable string representation of instance + ''' + return '(%f, %f)' % (self.x, self.y) + + +class Gamut: + ''' + The values of the monitor's colour stimuli + + @variable red:GamutPoint The red stimuli + @variable green:GamutPoint The green stimuli + @variable blue:GamutPoint The blue stimuli + @variable white:GamutPoint The default whitepoint + ''' + def __init__(self, red = None, green = None, blue = None, white = None): + ''' + Constructor + + @param red:GamutPoint|(int, int) The red stimuli + @param green:GamutPoint|(int, int) The green stimuli + @param blue:GamutPoint|(int, int) The blue stimuli + @param white:GamutPoint|(int, int) The default whitepoint + ''' + self.red = GamutPoint(*red) if isinstance(red, tuple) else red + self.green = GamutPoint(*green) if isinstance(green, tuple) else green + self.blue = GamutPoint(*blue) if isinstance(blue, tuple) else blue + self.white = GamutPoint(*white) if isinstance(white, tuple) else white + + def clone(self, shallow = True): + ''' + Create a copy of the instance + + @param shallow:bool Create a shallow copy? + ''' + if shallow: + return Gamut(self.red, self.green, self.blue, self.white) + return Gamut(self.red.clone(), self.green.clone(), self.blue.clone(), self.white.clone()) + + def __repr__(self): + ''' + Create a parsable string representation of the instance + + @return :str Parsable representation of the instance + ''' + params = (repr(self.red), repr(self.green), repr(self.blue), repr(self.white)) + return 'libcoopgamma.Gamut(%s)' % ', '.join(repr(p) for p in params) + + +class CRTCInfo: + ''' + Gamma ramp meta information for a CRTC + + @variable cooperative:bool Is cooperative gamma server running? + @variable depth:Depth? The data type and bit-depth of the ramp stops + @variable supported:Support Is gamma adjustments supported on the CRTC? + If not, `depth`, `red_size`, `green_size`, + and `blue_size` are undefined + @variable red_size:int? The number of stops in the red ramp + @variable green_size:int? The number of stops in the green ramp + @variable blue_size:int? The number of stops in the blue ramp + @variable colourspace:Colourspace The monitor's colourspace + @variable gamut:Gamut? Measurements of the monitor's colourspace, + `None` if the this information is unavailable. + If this is not `None`, but the colourspace + is not RGB (or sRGB), there is something + wrong. Always check the colourspace. + ''' + def __init__(self, cooperative = None, depth = None, supported = None, red_size = None, + green_size = None, blue_size = None, colourspace = None, gamut = None): + ''' + Constructor + + @param cooperative:bool Is cooperative gamma server running? + @param depth:Depth? The data type and bit-depth of the ramp stops + @param supported:Support Is gamma adjustments supported on the CRTC? + If not, `depth`, `red_size`, `green_size`, + and `blue_size` are undefined + @param red_size:int? The number of stops in the red ramp + @param green_size:int? The number of stops in the green ramp + @param blue_size:int? The number of stops in the blue ramp + @param colourspace:Colourspace The monitor's colourspace + @param gamut:Gamut|tuple? Measurements of the monitor's colourspace, + `None` if the this information is unavailable + ''' + self.cooperative = cooperative + self.depth = depth + self.supported = supported + self.red_size = red_size + self.green_size = green_size + self.blue_size = blue_size + self.colourspace = colourspace + if gamut is None or isinstance(gamut, Gamut): + self.gamut = gamut + else: + self.gamut = Gamut(*gamut) + + def make_ramps(self): + ''' + Construct a `Ramps` instances for this CRTC + + @return :Ramps An instance of `Ramps` with same a number of ramp stops + matching this CRTC + ''' + return Ramps(self.red_size, self.green_size, self.blue_size) + + def clone(self, shallow = True): + ''' + Create a copy of the instance + + @param shallow:bool Create a shallow copy? + ''' + return CRTCInfo(self.cooperative, self.depth, self.supported, self.red_size, + self.green_size, self.blue_size, self.colourspace, + self.gamut if shallow else self.gamut.clone()) + + def __repr__(self): + ''' + Create a parsable string representation of the instance + + @return :str Parsable representation of the instance + ''' + params = (self.cooperative, self.depth, self.supported, self.red_size, + self.green_size, self.blue_size, self.colourspace, self.gamut) + return 'libcoopgamma.CRTCInfo(%s)' % ', '.join(repr(p) for p in params) + + +class FilterQuery: + ''' + Data sent to the coopgamma server when requestng the current filter table + + @variable high_priority:int Do no return filters with higher priority than + this value. This is a signed 64-bit integer. + @variable low_priority:int Do no return filters with lower priority than + this value. This is a signed 64-bit integer. + @variable crtc:str The CRTC for which the the current filters shall returned + @variable coalesce:bool Whether to coalesce all filters into one gamma ramp triplet + ''' + def __init__(self, high_priority = 9223372036854775807, + low_priority = -9223372036854775808, crtc = None, coalesce = False): + ''' + Constructor + + @param high_priority:int Do no return filters with higher priority than + this value. This is a signed 64-bit integer. + @param low_priority:int Do no return filters with lower priority than + this value. This is a signed 64-bit integer. + @param crtc:str The CRTC for which the the current filters shall returned + @param coalesce:bool Whether to coalesce all filters into one gamma ramp triplet + ''' + self.high_priority = high_priority + self.low_priority = low_priority + self.crtc = crtc + self.coalesce = coalesce + + def clone(self): + ''' + Create a copy of the instance + ''' + return FilterQuery(self.high_priority, self.low_priority, self.crtc, self.coalesce) + + def __repr__(self): + ''' + Create a parsable string representation of the instance + + @return :str Parsable representation of the instance + ''' + params = (self.high_priority, self.low_priority, self.crtc, self.coalesce) + return 'libcoopgamma.FilterQuery(%s)' % ', '.join(repr(p) for p in params) + + +class QueriedFilter: + ''' + Stripped down version of `Filter` which only contains the + information returned in response to "Command: get-gamma" + + @variable priority:int The filter's priority. This is a signed 64-bit integer. + @variable fclass:str The filter's class + @variable ramps:Ramps The gamma ramp adjustments of the filter + ''' + def __init__(self, priority = None, fclass = None, ramps = None): + ''' + Constructor + + @param priority:int The filter's priority. This is a signed 64-bit integer. + @param fclass:str The filter's class + @param ramps:Ramps|tuple The gamma ramp adjustments of the filter + ''' + self.priority = priority + self.fclass = fclass + self.ramps = None + if ramps is not None: + self.ramps = Ramps(*ramps) if isinstance(ramps, tuple) else ramps + + def clone(self, shallow = False): + ''' + Create a copy of the instance + + @param shallow:bool Create a sallow copy? + ''' + ramps = self.ramps if shallow else self.ramps.clone() + return QueriedFilter(self.priority, self.fclass, ramps) + + def __repr__(self): + ''' + Create a parsable string representation of the instance + + @return :str Parsable representation of the instance + ''' + params = (self.priority, self.fclass, self.ramps) + return 'libcoopgamma.QueriedFilter(%s)' % ', '.join(repr(p) for p in params) + + +class FilterTable: + ''' + Response type for "Command: get-gamma": a list of applied filters + and meta-information that was necessary for decoding the response + + @variable red_size:int The number of stops in the red ramp + @variable green_size:int The number of stops in the green ramp + @variable blue_size:int The number of stops in the blue ramp + @variable depth:Depth The data type and bit-depth of the ramp stops + @variable filters:list<QueriedFilter> The filters, should be ordered by priority + in descending order, lest there is something + wrong with the coopgamma server. + If filter coalition was requested, there will + be exactly one filter and `filters[0].class` + and `filters[0].priority` are undefined. + ''' + def __init__(self, red_size = None, green_size = None, blue_size = None, depth = None, filters = None): + ''' + Constructor + + @param red_size:int The number of stops in the red ramp + @param green_size:int The number of stops in the green ramp + @param blue_size:int The number of stops in the blue ramp + @param depth:Depth The data type and bit-depth of the ramp stops + @param filters:list<QueriedFilter|tuple> The filters, should be ordered by priority + in descending order, lest there is something + wrong with the coopgamma server. + If filter coalition was requested, there will + be exactly one filter and `filters[0].class` + and `filters[0].priority` are undefined. + ''' + self.red_size = red_size + self.green_size = green_size + self.blue_size = blue_size + self.depth = depth + if filters is None: + self.filters + else: + self.filters = list(QueriedFilter(*f) if isinstance(f, tuple) else f for f in filters) + + def make_ramps(self): + ''' + Construct a `Ramps` instances for this CRTC + + @return :Ramps An instance of `Ramps` with same a number of ramp stops + matching this CRTC + ''' + return Ramps(self.red_size, self.green_size, self.blue_size) + + def clone(self, shallow = False): + ''' + Create a copy of the instance + + @param shallow:bool Create a sallow copy? + ''' + filters = list(self.filters) if shallow else [f.clone() for f in self.filters] + return FilterTable(self.red_size, self.green_size, self.blue_size, self.depth, filters) + + def __repr__(self): + ''' + Create a parsable string representation of the instance + + @return :str Parsable representation of the instance + ''' + params = (self.red_size, self.green_size, self.blue_size, self.depth, self.filters) + return 'libcoopgamma.FilterTable(%s)' % ', '.join(repr(p) for p in params) + + +class ErrorReport: + ''' + Error message from coopgamma server + + @variable number:int The error code. If `.custom` is false, 0 indicates success, + otherwise, 0 indicates that no error code has been assigned. + @variable custom:bool Is this a custom error? + @variable server_side:bool Did the error occur on the server-side? + @variable description:str? Error message, can be `None` if `custom` is false + ''' + def __init__(self, number = None, custom = None, server_side = None, description = None): + ''' + Constructor + + @param number:int The error code. If `.custom` is false, 0 indicates success, + otherwise, 0 indicates that no error code has been assigned. + @param custom:bool Is this a custom error? + @param server_side:bool Did the error occur on the server-side? + @param description:str? Error message, can be `None` if `custom` is false + ''' + self.number = number + self.custom = custom + self.server_side = server_side + self.description = description + + def clone(self): + ''' + Create a copy of the instance + ''' + return ErrorReport(self.number, self.custom, self.server_side, self.description) + + def __repr__(self): + ''' + Create a parsable string representation of the instance + + @return :str Parsable representation of the instance + ''' + params = (self.number, self.custom, self.server_side, self.description) + return 'libcoopgamma.ErrorReport(%s)' % ', '.join(repr(p) for p in params) + + @staticmethod + def create_error(error): + ''' + Create an instance of a subclass of `Exception` + + @param error Error information + ''' + if isinstance(error, int): + import os + return OSError(error, os.strerror(error)) + error = ErrorReport(*error) + if not error.custom and not error.server_side: + import os + return OSError(error.number, os.strerror(error.number)) + else: + return LibcoopgammaError(error) + + +class LibcoopgammaError(Exception): + ''' + libcoopgamma error class + + @variable error:ErrorReport Error information + ''' + def __init__(self, error): + ''' + Constructor + + @param error:ErrorReport Error information + ''' + self.error = error + + def __str__(self): + ''' + Return description and error number as a string + + @return :str Description and error number + ''' + if self.error.description is not None: + if self.error.number != 0: + return '%s (#%i)' % (self.error.description, self.error.number) + else: + return '%s' % self.error.description + else: + return '#%i' % self.error.number + + def __repr__(self): + ''' + Create a parsable string representation of the instance + + @return :str Parsable representation of the instance + ''' + return 'libcoopgamma.LibcoopgammaError(%s)' % repr(self.error) + + +class IncompatibleDowngradeError(Exception): + ''' + Unmarshalled state from a newer version, that is not supported, of libcoopgamma + ''' + def __init__(self): + ''' + Constructor + ''' + pass + + def __str__(self): + ''' + Return descriptor of the error + + @return :str Descriptor of the error + ''' + return 'Incompatible downgrade error' + + def __repr__(self): + ''' + Create a parsable string representation of the instance + + @return :str Parsable representation of the instance + ''' + return 'libcoopgamma.IncompatibleDowngradeError()' + + +class IncompatibleUpgradeError(Exception): + ''' + Unmarshalled state from an older version, that is no longer supported, of libcoopgamma + ''' + def __init__(self): + ''' + Constructor + ''' + pass + + def __str__(self): + ''' + Return descriptor of the error + + @return :str Descriptor of the error + ''' + return 'Incompatible downgrade error' + + def __repr__(self): + ''' + Create a parsable string representation of the instance + + @return :str Parsable representation of the instance + ''' + return 'libcoopgamma.IncompatibleUpgradeErrorError()' + + +class ServerInitialisationError(Exception): + ''' + coopgamma server failed to initialise, reason unknown + ''' + def __init__(self): + ''' + Constructor + ''' + pass + + def __str__(self): + ''' + Return descriptor of the error + + @return :str Descriptor of the error + ''' + return 'Server initialisation error' + + def __repr__(self): + ''' + Create a parsable string representation of the instance + + @return :str Parsable representation of the instance + ''' + return 'libcoopgamma.ServerInitialisationError()' + + +class Context: + ''' + Library state + + Use of this structure is not thread-safe, create + one instance per thread that uses this structure + + @variable fd:int File descriptor for the socket + ''' + def __init__(self, fd = -1, buf = None): + ''' + Constructor + + @param fd:int File descriptor for the socket + @param buf:bytes? Buffer to unmarshal + ''' + self.address = None + self.fd = fd + if buf is None: + (successful, value) = _libcoopgamma_native_context_create() + if not successful: + raise ErrorReport.create_error(value) + else: + (error, value) = _libcoopgamma_native_context_unmarshal(buf) + if error < 0: + raise ErrorReport.create_error(value) + elif error == 1: + raise IncompatibleDowngradeError() + elif error == 2: + raise IncompatibleUpgradeError() + self.address = value + + def __del__(self): + ''' + Destructor + ''' + if self.address is not None: + _libcoopgamma_native_context_free(self.address) + + def __repr__(self): + ''' + Create a parsable string representation of the instance + + @return :str Parsable representation of the instance + ''' + data = _libcoopgamma_native_context_marshal(self.address) + if isinstance(data, int): + raise ErrorReport.create_error(data) + params = (self.fd, data) + return 'libcoopgamma.Context(%s)' % ', '.join(repr(p) for p in params) + + def connect(self, method = None, site = None): + ''' + Connect to a coopgamma server, and start it if necessary + + Use `del` keyword to disconnect + + SIGCHLD must not be ignored or blocked + + All other methods in this class requires that this + method has been called successfully + + @param method:int|str? The adjustment method, `None` for automatic + @param site:str? The site, `None` for automatic + ''' + if method is not None and isinstance(method, int): + method = str(method) + (successful, value) = _libcoopgamma_native_connect(method, site, self.address) + if not successful: + if value == 0: + raise ServerInitialisationError() + else: + raise ErrorReport.create_error(value) + self.fd = value + + def detach(self): + ''' + After calling this function, communication with the + server is impossible, but the connection is not + closed and the when the instance is destroyed the + connection will remain + ''' + _libcoopgamma_native_context_set_fd(self.address, -1) + + def attach(self): + ''' + Undoes the action of `detach` + ''' + _libcoopgamma_native_context_set_fd(self.address, self.fd) + + def set_nonbreaking(self, nonbreaking): + ''' + By default communication is blocking, this function + can be used to switch between blocking and nonblocking + + After setting the communication to nonblocking, `flush`, `synchronise` and + and request-sending functions can fail with EAGAIN and EWOULDBLOCK. It is + safe to continue with `flush` (for `flush` it selfand equest-sending functions) + or `synchronise` just like EINTR failure. + + @param nonblocking:bool Nonblocking mode? + ''' + error = _libcoopgamma_native_set_nonblocking(self.address, nonbreaking) + if error != 0: + raise ErrorReport.create_error(error) + + def flush(self): + ''' + Send all pending outbound data + + If this function or another function that sends a request to the server fails + with EINTR, call this function to complete the transfer. The `async_ctx` parameter + will always be in a properly configured state if a function fails with EINTR. + ''' + error = _libcoopgamma_native_flush(self.address) + if error != 0: + raise ErrorReport.create_error(error) + + def synchronise(self, pending): + ''' + Wait for the next message to be received + + @param pending:list<AsyncContext> Information for each pending request + @return :int? The index of the element in `pending` which corresponds + to the first inbound message, note that this only means + that the message is not for any of the other request, + if the message is corrupt any of the listed requests can + be selected even if it is not for any of the requests. + Functions that parse the message will detect such corruption. + `None` if the message is ignored, which happens if + corresponding AsyncContext is not listed. + ''' + pending = [p.address for p in pending] + (successful, value) = _libcoopgamma_native_synchronise(self.address, pending) + if not successful: + if value == 0: + return None + else: + raise ErrorReport.create_error(value) + else: + return value + + def skip_message(self): + ''' + Tell the library that you will not be parsing a receive message + ''' + _libcoopgamma_native_skip_message(self.address) + + def get_crtcs_send(self, async_ctx): + ''' + List all available CRTC:s, send request part + + @param async_ctx:AsyncContext Slot for information about the request that is + needed to identify and parse the response + ''' + + error = _libcoopgamma_native_get_crtcs_send(self.address, async_ctx.address) + if error != 0: + raise ErrorReport.create_error(error) + + def get_crtcs_recv(self, async_ctx): + ''' + List all available CRTC:s, receive response part + + @param async_ctx:AsyncContext Information about the request + @return :list<str> A list of names. You should only free the outer + pointer, inner pointers are subpointers of the + outer pointer and cannot be freed. + ''' + ret = _libcoopgamma_native_get_crtcs_recv(self.address, async_ctx.address) + if isinstance(ret, int): + raise ErrorReport.create_error(ret) + return ret + + def get_crtcs_sync(self): + ''' + List all available CRTC:s, synchronous version + + This is a synchronous request function, as such, you have to ensure that + communication is blocking (default), and that there are not asynchronous + requests waiting, it also means that EINTR:s are silently ignored and + there no wait to cancel the operation without disconnection from the server + + @return :list<str> A list of names. You should only free the outer pointer, inner + pointers are subpointers of the outer pointer and cannot be freed. + ''' + ret = _libcoopgamma_native_get_crtcs_sync(self.address) + if isinstance(ret, int): + raise ErrorReport.create_error(ret) + return ret + + def get_gamma_info_send(self, crtc, async_ctx): + ''' + Retrieve information about a CRTC:s gamma ramps, send request part + + @param crtc:str The name of the CRT + @param async_ctx:AsyncContext Slot for information about the request that is + needed to identify and parse the response + ''' + error = _libcoopgamma_native_get_gamma_info_send(crtc, self.address, async_ctx.address) + if error != 0: + raise ErrorReport.create_error(error) + + def get_gamma_info_recv(self, async_ctx): + ''' + Retrieve information about a CRTC:s gamma ramps, receive response part + + @param async_ctx:AsyncContext Information about the request + @return :CRTCInfo Information about the CRTC + ''' + value = _libcoopgamma_native_get_gamma_info_recv(self.address, async_ctx.address) + if isinstance(value, int): + raise ErrorReport.create_error(value) + (successful, value) = value + if not successful: + raise ErrorReport.create_error(value) + return CRTCInfo(*value) + + def get_gamma_info_sync(self, crtc): + ''' + Retrieve information about a CRTC:s gamma ramps, synchronous version + + This is a synchronous request function, as such, you have to ensure that + communication is blocking (default), and that there are not asynchronous + requests waiting, it also means that EINTR:s are silently ignored and + there no wait to cancel the operation without disconnection from the server + + @param crtc:str The name of the CRT + @return :CRTCInfo Information about the CRTC + ''' + value = _libcoopgamma_native_get_gamma_info_sync(crtc, self.address) + if isinstance(value, int): + raise ErrorReport.create_error(value) + (successful, value) = value + if not successful: + raise ErrorReport.create_error(value) + return CRTCInfo(*value) + + def get_gamma_send(self, query, async_ctx): + ''' + Retrieve the current gamma ramp adjustments, send request part + + @param query:FilterQuery The query to send + @param async_ctx:AsyncContext Slot for information about the request that is + needed to identify and parse the response + ''' + error = _libcoopgamma_native_get_gamma_send( + query, self.address, async_ctx.address) + if error != 0: + raise ErrorReport.create_error(error) + + def get_gamma_recv(self, async_ctx): + ''' + Retrieve the current gamma ramp adjustments, receive response part + + @param async_ctx:AsyncContext Information about the request + @return :FilterTable Filter table + ''' + value = _libcoopgamma_native_get_gamma_recv(self.address, async_ctx.address) + if isinstance(value, int): + raise ErrorReport.create_error(value) + (successful, value) = value + if not successful: + raise ErrorReport.create_error(value) + return FilterTable(*value) + + def get_gamma_sync(self, query): + ''' + Retrieve the current gamma ramp adjustments, synchronous version + + This is a synchronous request function, as such, you have to ensure that + communication is blocking (default), and that there are not asynchronous + requests waiting, it also means that EINTR:s are silently ignored and + there no wait to cancel the operation without disconnection from the server + + @param query:FilterQuery The query to send + @return :FilterTable Filter table + ''' + value = _libcoopgamma_native_get_gamma_sync(query, self.address) + if isinstance(value, int): + raise ErrorReport.create_error(value) + (successful, value) = value + if not successful: + raise ErrorReport.create_error(value) + return FilterTable(*value) + + def set_gamma_send(self, filtr, async_ctx): + ''' + Apply, update, or remove a gamma ramp adjustment, send request part + + @param filtr:Filter The filter to apply, update, or remove, gamma ramp + meta-data must match the CRTC's + @param async_ctx:AsyncContext Slot for information about the request that is + needed to identify and parse the response + ''' + error = _libcoopgamma_native_set_gamma_send(filtr, self.address, async_ctx.address) + if error != 0: + raise ErrorReport.create_error(error) + + def set_gamma_recv(self, async_ctx): + ''' + Apply, update, or remove a gamma ramp adjustment, receive response part + + @param async_ctx:AsyncContext Information about the request + ''' + error = _libcoopgamma_native_set_gamma_recv(self.address, async_ctx.address) + if error is not None: + raise ErrorReport.create_error(error) + + def set_gamma_sync(self, filtr): + ''' + Apply, update, or remove a gamma ramp adjustment, synchronous version + + This is a synchronous request function, as such, you have to ensure that + communication is blocking (default), and that there are not asynchronous + requests waiting, it also means that EINTR:s are silently ignored and + there no wait to cancel the operation without disconnection from the server + + @param filtr:Filter The filter to apply, update, or remove, + gamma ramp meta-data must match the CRTC's + ''' + error = _libcoopgamma_native_set_gamma_sync(filtr, self.address) + if error is not None: + raise ErrorReport.create_error(error) + + +class AsyncContext: + ''' + Information necessary to identify and parse a response from the server + ''' + def __init__(self, buf = None): + ''' + Constructor + + @param buf:bytes? Buffer to unmarshal + ''' + self.address = None + if buf is None: + (successful, value) = _libcoopgamma_native_async_context_create() + if not successful: + raise ErrorReport.create_error(value) + else: + (error, value) = _libcoopgamma_native_async_context_unmarshal(buf) + if error < 0: + raise ErrorReport.create_error(value) + elif error == 1: + raise IncompatibleDowngradeError() + elif error == 2: + raise IncompatibleUpgradeError() + self.address = value + + def __del__(self): + ''' + Destructor + ''' + if self.address is not None: + _libcoopgamma_native_async_context_free(self.address) + + def __repr__(self): + ''' + Create a parsable string representation of the instance + + @return :str Parsable representation of the instance + ''' + data = _libcoopgamma_native_async_context_marshal(self.address) + if isinstance(data, int): + raise ErrorReport.create_error(data) + return 'libcoopgamma.AsyncContext(%s)' % repr(data) + + +def get_methods(): + ''' + List all recognised adjustment method + + SIGCHLD must not be ignored or blocked + + @return :list<str> A list of names. You should only free the outer pointer, inner + pointers are subpointers of the outer pointer and cannot be freed. + ''' + ret = _libcoopgamma_native_get_methods() + if isinstance(ret, int): + raise ErrorReport.create_error(ret) + return ret + + +def get_method_and_site(method = None, site = None): + ''' + Get the adjustment method and site + + SIGCHLD must not be ignored or blocked + + @param method:int|str? The adjustment method, `None` for automatic + @param site:str? The site, `None` for automatic + @return :(:str, :str?) The selected adjustment method and the selected the + selected site. If the adjustment method only supports + one site or if `site` is `None` and no site can be + selected automatically, the selected site (the second + element in the returned tuple) will be `None`. + ''' + if method is not None: + method = str(method) + ret = _libcoopgamma_native_get_method_and_site(method, site) + if isinstance(ret, int): + raise ErrorReport.create_error(ret) + return ret + + +def get_pid_file(method = None, site = None): + ''' + Get the PID file of the coopgamma server + + SIGCHLD must not be ignored or blocked + + @param method:int|str? The adjustment method, `None` for automatic + @param site:str? The site, `None` for automatic + @return :str? The pathname of the server's PID file. + `None` if the server does not use PID files. + ''' + if method is not None: + method = str(method) + ret = _libcoopgamma_native_get_pid_file(method, site) + if ret is not None and isinstance(ret, int): + raise ErrorReport.create_error(ret) + return ret + + +def get_socket_file(method = None, site = None): + ''' + Get the socket file of the coopgamma server + + SIGCHLD must not be ignored or blocked + + @param method:int|str? The adjustment method, `None` for automatic + @param site:str? The site, `None` for automatic + @return :str? The pathname of the server's socket, `None` if the server does have + its own socket, which is the case when communicating with a server + in a multi-server display server like mds + ''' + if method is not None: + method = str(method) + ret = _libcoopgamma_native_get_socket_file(method, site) + if ret is not None and isinstance(ret, int): + raise ErrorReport.create_error(ret) + return ret |