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| -rw-r--r-- | src/output.py | 1016 |
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diff --git a/src/output.py b/src/output.py new file mode 100644 index 0000000..d0de14a --- /dev/null +++ b/src/output.py @@ -0,0 +1,1016 @@ +#!/usr/bin/env python3 + +# Copyright © 2014, 2015, 2016, 2017 Mattias Andrée (maandree@kth.se) +# +# This program 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 program 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 program. If not, see <http://www.gnu.org/licenses/>. + +# This module is responsible for access to the monitors. + +class Tristate: + ''' + Ternary values + + @constant NO:int + @constant MAYBE:int + @constant YES:int + ''' + NO = 0 + MAYBE = 1 + YES = 2 + +class Lifespan: + ''' + The lifespan of a gamma adjustment, for cooperative gamma + + @constant UNTIL_DEATH:int Remove adjustment when connection to server closes or + when explicitly removed + @constant UNTIL_REMOVAL:int Only remove adjustment once it is requested explicitly + @constant REMOVE:int Request that the adjustment be removed now + ''' + UNTIL_DEATH = 0 + ''' + :int Remove adjustment when connection to server closes or when explicitly removed + ''' + + UNTIL_REMOVAL = 1 + ''' + :int Only remove adjustment once it is requested explicitly + ''' + + REMOVE = 2 + ''' + :int Request that the adjustment be removed now + ''' + +class EDID: + ''' + Parsed EDID data + + @variable manufacturer_id:str? The manufacturer's ID + @variable manufacturer_product_code:int? Manufacturer specific product code + @variable serial_number:int? Serial number + @variable manufacture_week:int? Week of manifacture + @variable manufacture_year:int? Year of manifacture + @variable model_year:int? Year of model + @variable edid_version:(major:int, minor:int)? EDID version + @variable digital_input:bool? Whether the monitor takes digital input + @variable vesa_dfp_1x_tmds_crgb_compatible:bool? Whether the monitor is VESA DFP 1.x TMDS CRGB, 1 pixel + per clock, up to 8 bits per color, MSB aligned compatible + @variable relative_white_level:float? Voltage level for white relative to blank + @variable relative_sync_level:float? Voltage level for separate relative to blank + @variable blank_to_black:bool? Whether blank to black setup is expected + @variable separate_sync_supported:bool? Whether separate synchronisation is supported + @variable composite_sync_supported:bool? Whether composite synchronisation is supported + @variable sync_on_green_supported:bool? Whether synchronisation on green is supported + @variable vsync_pulse_serrated:bool? Whether vertical synchronisation pulse is serrated + @variable width_mm:int? The width of the monitor's viewport in millimetres + @variable height_mm:int? The heiht of the monitor's viewport in millimetres + @variable display_gamma:float? The monitor's gamma + @variable dpms_standby_supported:bool? Whether DPMS standby is supported + @variable dpms_suspend_supported:bool? Whether DPMS suspend is supported + @variable dpms_active_off_supported:bool? Whether DPMS active-off is supported + @variable digital_rgb_444_supported:bool? Whether digital RGB 4:4:4 input is supported + @variable digital_ycrcb_444_supported:bool? Whether digital YCrCb 4:4:4 input is supported + @variable digital_ycrcb_422_supported:bool? Whether digital YCrCb 4:2:2 input is supported + @variable analogue_grey_mono_display:bool? Whether the display is greyscale or monochrome and + takes analogue input + @variable analogue_rgb_display:bool? Whether the display is coloured and uses an RGB + colour space and takes analogue input + @variable analogue_non_rgb_display:bool? Whether the display is coloured and uses a non-RGB + colour model and takes analogue input + @variable srgb:bool? Whether the monitor uses sRGB + @variable preferred_timing_mode:bool? For EDID 1.2-: Whether the preferred timing mode is + specified in descriptor block 1. + For EDID 1.3+: Whether the preferred timing mode + (specified in descriptor block 1) includes native + pixel format and refresh rate. + @variable gtf_supported:bool? Whether Generalized Timing Formula is supported with + default parameter values + @variable red_chroma:(x:float, y:float)? The CIE xyY x and y values of the red primary colour + @variable green_chroma:(x:float, y:float)? The CIE xyY x and y values of the green primary colour + @variable blue_chroma:(x:float, y:float)? The CIE xyY x and y values of the blue primary colour + @variable white_chroma:(x:float, y:float)? The CIE xyY x and y values of the white point + ''' + def __init__(self, edid): + ''' + Constructor + + @edid edid:str The EDID in upper case hexadecimal representation + ''' + self.manufacturer_id = None + self.manufacturer_product_code = None + self.serial_number = None + self.manufacture_week = None + self.manufacture_year = None + self.model_year = None + self.edid_version = None + self.digital_input = None + self.vesa_dfp_1x_tmds_crgb_compatible = None + self.relative_white_level = None + self.relative_sync_level = None + self.blank_to_black = None + self.separate_sync_supported = None + self.composite_sync_supported = None + self.sync_on_green_supported = None + self.vsync_pulse_serrated = None + self.width_mm = None + self.height_mm = None + self.display_gamma = None + self.dpms_standby_supported = None + self.dpms_suspend_supported = None + self.dpms_active_off_supported = None + self.digital_rgb_444_supported = None + self.digital_ycrcb_444_supported = None + self.digital_ycrcb_422_supported = None + self.analogue_grey_mono_display = None + self.analogue_rgb_display = None + self.analogue_non_rgb_display = None + self.srgb = None + self.preferred_timing_mode = None + self.gtf_supported = None + self.red_chroma = None + self.green_chroma = None + self.blue_chroma = None + self.white_chroma = None + + if edid[:len('00FFFFFFFFFFFF00')] == '00FFFFFFFFFFFF00' or len(edid) % 2 == 1: + return + edid = [int(edid[i * 2 : i * 2 + 2], 16) for i in range(len(edid) // 2)] + if sum(edid) % 256 != 0 or len(edid[:128]) < 128: + return + + self.manufacturer_id = [(edid[8] >> 2) & 0x0F, (edid[9] >> 4) | (edid[8] & 1) << 4, edid[9] & 0x0F] + self.manufacturer_id = ''.join(chr(ord('@') + c) for c in self.manufacturer_id) + self.manufacturer_product_code = edid[10] | (edid[11] << 8) + self.serial_number = edid[12] | (edid[13] << 8) | (edid[14] << 16) | (edid[15] << 24) + self.manufacture_week = edid[16] # inconsistent between manufacturers + self.manufacture_year = 1990 + edid[17] + if self.manufacture_week == 255: + self.model_year = self.manufacture_year + self.manufacture_week = None + self.manufacture_year = None + self.edid_version = (edid[18], edid[19]) + self.digital_input = (edid[20] & 0x80) == 0x80 + if self.digital_input: + self.vesa_dfp_1x_tmds_crgb_compatible = (edid[20] & 1) == 1 + else: + self.relative_white_level = (0.7, 0.714, 1, 0.7)[(edid >> 5) & 3] + self.relative_sync_level = (-0.3, -0.286, -0.4, 0)[(edid >> 5) & 3] + self.blank_to_black = (edid[20] & 16) == 16 + self.separate_sync_supported = (edid[20] & 8) == 8 + self.composite_sync_supported = (edid[20] & 4) == 4 + self.sync_on_green_supported = (edid[20] & 2) == 2 + self.vsync_pulse_serrated = (edid[20] & 1) == 1 + self.width_mm = edid[21] * 10 + self.height_mm = edid[22] * 10 + if edid[21] == 0 or edid[22] == 0: + self.width_mm = self.height_mm = 0 + self.display_gamma = edid[23] / 100 + 1 if edid[23] else None + self.dpms_standby_supported = (edid[24] & 128) == 128 + self.dpms_suspend_supported = (edid[24] & 64) == 64 + self.dpms_active_off_supported = (edid[24] & 32) == 32 + if self.digital_input: + self.digital_rgb_444_supported = True + self.digital_ycrcb_444_supported = (edid[24] & 8) == 8 + self.digital_ycrcb_422_supported = (edid[24] & 16) == 16 + self.analogue_grey_mono_display = False + self.analogue_rgb_display = False + self.analogue_non_rgb_display = False + else: + self.digital_rgb_444_supported = False + self.digital_ycrcb_444_supported = False + self.digital_ycrcb_422_supported = False + self.analogue_grey_mono_display = ((edid[24] >> 3) & 3) == 0 + self.analogue_rgb_display = ((edid[24] >> 3) & 3) == 1 + self.analogue_non_rgb_display = ((edid[24] >> 3) & 3) == 2 + self.srgb = (edid[24] & 4) == 4 + self.preferred_timing_mode = (edid[24] & 2) == 2 + self.gtf_supported = (edid[24] & 1) == 1 + rx = (edid[27] << 2) | ((edid[25] >> 6) & 3) + ry = (edid[28] << 2) | ((edid[25] >> 4) & 3) + gx = (edid[29] << 2) | ((edid[25] >> 2) & 3) + gy = (edid[30] << 2) | ((edid[25] >> 0) & 3) + bx = (edid[31] << 2) | ((edid[26] >> 6) & 3) + by = (edid[32] << 2) | ((edid[26] >> 4) & 3) + wx = (edid[33] << 2) | ((edid[26] >> 2) & 3) + wy = (edid[34] << 2) | ((edid[26] >> 0) & 3) + self.red_chroma = (rx / 1024, ry / 1024) + self.green_chroma = (gx / 1024, gy / 1024) + self.blue_chroma = (bx / 1024, by / 1024) + self.white_chroma = (wx / 1024, wy / 1024) + # There are also mode lines and maybe extensions, but yeah... + +class MultiCRTC: + ''' + A group of CRTC:s organised for efficient gamma ramp adjustments + ''' + def __init__(self, crtcs, interpolation = None): + ''' + Constructor + + @param crtc:iter<CTRC> The CRTC:s + @param interpolation:(r:list<float>, g:list<float>, b:list<float>)→ + (r:list<float>, g:list<float>, b:list<float>)? + Function used to interpolate gamma ramps to new dimentions, + `None` for the default interpolator, which is intentionally + unspecified + ''' + self.interpolation = interpolation + self.layers = [] + for crtc in crtcs: + self.add(crtc) + + def add(self, crtc): + ''' + Add a CRTC + + @param crtc:CRTC The CRTC to add + ''' + found = None + for layer in self.layers: + ref = layer[0][0][0] + if crtc.red_gamma_size == ref.red_gamma_size: + if crtc.green_gamma_size == ref.green_gamma_size: + if crtc.blue_gamma_size == ref.blue_gamma_size: + found = layer + break + if not found: + found = [] + self.layers.append(found) + + subfound = None + for sublayer in found: + ref = sublayer[0][0] + if crtc.gamma_depth == ref.gamma_depth: + subfound = sublayer + break + if not subfound: + subfound = [] + found.append(subfound) + + subsubfound = None + for subsublayer in subfound: + ref = subsublayer[0] + if crtc.backend == ref.backend: + subsubfound = subsublayer + break + if not subsubfound: + subsubfound = [] + subfound.append(subsubfound) + + subsubfound.append(crtc) + + def make_ramps(self, depth = -2): + ''' + Create a gamma-ramp trio where each ramp is as large as the + largest ramp, of the samp colour, of the CRTCs in the group + + @param depth:int The gamma depth, 8 for unsigned 8-bit integers, + 16 for unsigned 16-bit integers, 32 for unsigned + 32-bit integers, 64 for unsigned 64-bit integers, + -1 for single-precision floating-point values, and + -2 for double-precision floating-point values + @return :Ramps A new gamma-ramp trio suited for the group + ''' + size = [1, 1, 1] + for layer in self.layers: + crtc = layer[0][0][0] + size[0] = max(size[0], crtc.red_gamma_size) + size[1] = max(size[1], crtc.green_gamma_size) + size[2] = max(size[2], crtc.blue_gamma_size) + return Ramps(None, depth = depth, size = size) + + def set_gamma(self, ramps, priority = None, rule = None, lifespan = 1): + ''' + Set the gamma ramps on all CRTC:s in the group + + @param ramps:Ramps The gamma ramps + @param priority:int? The priority of the adjustment, `None` for the default. + Must be `None` (default) if cooperative gamma is not supported. + @param rule:str? The rule of the adjustment, `None` for the default. + The rule is the last part of the adjustment's identifier, + if this is unique within the program, it should be universally + unique unless another program is intentionally make it not so. + Must be `None` (default) if cooperative gamma is not supported. + @param lifespan:int The lifespan of the algorithm: `Lifespan.UNTIL_DEATH`, + `Lifespan.UNTIL_REMOVAL` (default), or `Lifespan.REMOVE` + ''' + if lifespan == Lifespan.REMOVE: + for layer in self.layers: + for sublayer in layer: + for subsublayer in sublayer: + for crtc in subsublayer: + crtc.set_gamma(None, priority, rule, lifespan) + return + + for layer in self.layers: + ref = layer[0][0][0] + refsize = (ref.red_gamma_size, ref.green_gamma_size, ref.blue_gamma_size) + if refsize == (len(ramps.red), len(ramps.green), len(ramps.blue)): + ramps_size = ramps + else + ramps_size = Ramps.copy(ramps, refcrtc.depth, refsize) + for sublayer in layer: + ref = sublayer[0][0] + refdepth = ref.gamma_depth + if refdepth == ramps_size.depth: + ramps_depth = ramps_size + else: + ramps_depth = Ramps.copy(ramps, refdepth, refsize) + for subsublayer in sublayer: + ramps_backend = ramps_depth + for crtc in subsublayer: + ramps_backend = crtc.set_gamma(ramps_backend, priority, rule, lifespan) + +class CRTC: + ''' + A CRTC + + @function restore:(self)?→void Restore the CLUT:s to the (configured) system + defaults, `None` if not supported + + @variable edid:str? The EDID in upper case hexadecimal representation + @variable red_gamma_size:int? The number of stops in the red gamma ramp + @variable green_gamma_size:int? The number of stops in the green gamma ramp + @variable blue_gamma_size:int? The number of stops in the blue gamma ramp + @variable gamma_depth:int? The gamma depth, 8 for unsigned 8-bit integers, + 16 for unsigned 16-bit integers, 32 for unsigned + 32-bit integers, 64 for unsigned 64-bit integers, + -1 for single-precision floating-point values, and + -2 for double-precision floating-point values + @variable gamma_support:int? 0 (`Tristate.NO`) if gamma adjustments are not supported, + 1 (`Tristate.MAYBE`) if gamma adjustments support is unknown, + and 2 (`Tristate.YES`) if gamma adjustments are supported, + @variable subpixel_order:str? The subpixel order: + "RGB" for red at left, green in centre, and blue at right; + "BGR" for red at right, green in centre, and blue at left; + "vRGB" for red at top, green in middle, and blue at bottom; + "vBGR" for red at bottom, green in middle, and blue at top; + and "None" for no subpixel order (e.g. on most old to + semi-old CRT:s) + @variable active:bool? Whether the monitor is active + @variable connector_name:str? The connector name + @variable connector_type:str? The connector type + @variable ramps Gamma ramps, you should not use it directly (INTERNAL) + @variable cooperative:bool Whether cooperative gamma is supported + @variable default_rule:str The default cooperative gamma rule (part of the class (filter identifier)) + @variable default_priority:int The default cooperative gamma priority (filter order) + + You will also find the following variables in `.edid_data`, however, here they are as + specified by the display server rather than as specified in the EDID. This means that + they can be been corrected by the user or the display server. On the other hand, they + can also be incorrect. For exampel, under X.org `.width_mm` and `.height_mm` are + calculated from assumed properties and can be completely, and horribly, wrong. + + @variable manufacturer_id:str? The manufacturer's ID + @variable manufacturer_product_code:int? Manufacturer specific product code + @variable serial_number:int? Serial number + @variable manufacture_week:int? Week of manifacture + @variable manufacture_year:int? Year of manifacture + @variable model_year:int? Year of model + @variable edid_version:(major:int, minor:int)? EDID version + @variable digital_input:bool? Whether the monitor takes digital input + @variable vesa_dfp_1x_tmds_crgb_compatible:bool? Whether the monitor is VESA DFP 1.x TMDS CRGB, 1 pixel + per clock, up to 8 bits per color, MSB aligned compatible + @variable relative_white_level:float? Voltage level for white relative to blank + @variable relative_sync_level:float? Voltage level for separate relative to blank + @variable blank_to_black:bool? Whether blank to black setup is expected + @variable separate_sync_supported:bool? Whether separate synchronisation is supported + @variable composite_sync_supported:bool? Whether composite synchronisation is supported + @variable sync_on_green_supported:bool? Whether synchronisation on green is supported + @variable vsync_pulse_serrated:bool? Whether vertical synchronisation pulse is serrated + @variable width_mm:int? The width of the monitor's viewport in millimetres + @variable height_mm:int? The heiht of the monitor's viewport in millimetres + @variable display_gamma:float? The monitor's gamma + @variable dpms_standby_supported:bool? Whether DPMS standby is supported + @variable dpms_suspend_supported:bool? Whether DPMS suspend is supported + @variable dpms_active_off_supported:bool? Whether DPMS active-off is supported + @variable digital_rgb_444_supported:bool? Whether digital RGB 4:4:4 input is supported + @variable digital_ycrcb_444_supported:bool? Whether digital YCrCb 4:4:4 input is supported + @variable digital_ycrcb_422_supported:bool? Whether digital YCrCb 4:2:2 input is supported + @variable analogue_grey_mono_display:bool? Whether the display is greyscale or monochrome and + takes analogue input + @variable analogue_rgb_display:bool? Whether the display is coloured and uses an RGB + colour space and takes analogue input + @variable analogue_non_rgb_display:bool? Whether the display is coloured and uses a non-RGB + colour model and takes analogue input + @variable srgb:bool? Whether the monitor uses sRGB + @variable preferred_timing_mode:bool? For EDID 1.2-: Whether the preferred timing mode is + specified in descriptor block 1. + For EDID 1.3+: Whether the preferred timing mode + (specified in descriptor block 1) includes native + pixel format and refresh rate. + @variable gtf_supported:bool? Whether Generalized Timing Formula is supported with + default parameter values + @variable red_chroma:(x:float, y:float)? The CIE xyY x and y values of the red primary colour + @variable green_chroma:(x:float, y:float)? The CIE xyY x and y values of the green primary colour + @variable blue_chroma:(x:float, y:float)? The CIE xyY x and y values of the blue primary colour + @variable white_chroma:(x:float, y:float)? The CIE xyY x and y values of the white point + ''' + def __init__(self): + ''' + Constructor + ''' + self.__edid_data = ... + self.edid = None + self.red_gamma_size = None + self.green_gamma_size = None + self.blue_gamma_size = None + self.gamma_depth = None + self.gamma_support = None + self.subpixel_order = None + self.active = None + self.connector_name = None + self.connector_type = None + self.ramps = None + self.cooperative = False + self.default_rule = 'standard' + self.default_priority = 1 << 59 + + # Everything that is in the EDID class, in + # case it is specified by the display server + # and potentially configured by the user. + self.manufacturer_id = None + self.manufacturer_product_code = None + self.serial_number = None + self.manufacture_week = None + self.manufacture_year = None + self.model_year = None + self.edid_version = None + self.digital_input = None + self.vesa_dfp_1x_tmds_crgb_compatible = None + self.relative_white_level = None + self.relative_sync_level = None + self.blank_to_black = None + self.separate_sync_supported = None + self.composite_sync_supported = None + self.sync_on_green_supported = None + self.vsync_pulse_serrated = None + self.width_mm = None + self.height_mm = None + self.display_gamma = None + self.dpms_standby_supported = None + self.dpms_suspend_supported = None + self.dpms_active_off_supported = None + self.digital_rgb_444_supported = None + self.digital_ycrcb_444_supported = None + self.digital_ycrcb_422_supported = None + self.analogue_grey_mono_display = None + self.analogue_rgb_display = None + self.analogue_non_rgb_display = None + self.srgb = None + self.preferred_timing_mode = None + self.gtf_supported = None + self.red_chroma = None + self.green_chroma = None + self.blue_chroma = None + self.white_chroma = None + + def make_ramps(self, depth = None): + ''' + Create gamma ramps with the same size as the CRTC expects + + @param depth:int? The gamma depth, 8 for unsigned 8-bit integers, + 16 for unsigned 16-bit integers, 32 for unsigned + 32-bit integers, 64 for unsigned 64-bit integers, + -1 for single-precision floating-point values, + -2 for double-precision floating-point values, and + `None` for the gamma depth the CRTC expects + @return :Ramps The created gamma ramps + ''' + return Ramps(self, depth = depth) + + @property + def edid_data(self): + ''' + Get parsed EDID information for the CRTC + + @return :EDID Parsed EDID information + ''' + if self.__edid_data is ...: + self.__edid_data = None if self.edid is None else EDID(self.edid) + return self.__edid_data + +class Screen: + ''' + A screen or graphics card + + @function restore:(self)?→void Restore the CLUT:s to the (configured) system + defaults, `None` if not supported + ''' + def __len__(self): + ''' + Get the number of CRTC:s in the screen + + @return :int The number of CRTC:s in the screen + ''' + return len(self.crtcs) + + def __getitem__(self, indices): + ''' + Get CRTC:s in the screen + + @param indices:int|slice The index or index range of CRTC:s to return + @return :CRTC|list<CRTC> The CRTC or CRTC:s with the specified indices + ''' + return self.crtcs[indices] + + def __iter__(self): + ''' + Iterator of the screen's CRTC:s + + @yield :CRTC CRTC in the screen + ''' + for value in self[:]: + yield value + +class Display: + ''' + A display + + @function restore:(self)?→void Restore the CLUT:s to the (configured) system + defaults, `None` if not supported + ''' + def __len__(self): + ''' + Get the number of screens in the display + + @return :int The number of screens in the display + ''' + return len(self.crtcs) + + def __getitem__(self, indices): + ''' + Get screens in the display + + @param indices:int|slice The index or index range of screens to return + @return :CRTC|list<CRTC> The screen or screens with the specified indices + ''' + return self.crtcs[indices] + + def __iter__(self): + ''' + Iterator of the display's screens + + @yield :Screen Screen in the display + ''' + for value in self[:]: + yield value + +class Ramps: ## TODO adjustments + ''' + Gamma ramps + + @variable red:list<float> The gamma ramp of the red channel + @variable green:list<float> The gamma ramp of the green channel + @variable blue:list<float> The gamma ramp of the blue channel + @variable depth:int The gamma depth, 8 for unsigned 8-bit integers, + 16 for unsigned 16-bit integers, 32 for unsigned + 32-bit integers, 64 for unsigned 64-bit integers, + -1 for single-precision floating-point values, and + -2 for double-precision floating-point values + ''' + def __init__(self, crtc, depth = None, size = None): + ''' + Constructor + + @param crtc:CRTC? The CRTC the ramps should match, may + only be `None` if neither `depth` nor + `size` is `None` + @param depth:int? The gamma depth, 8 for unsigned 8-bit integers, + 16 for unsigned 16-bit integers, 32 for unsigned + 32-bit integers, 64 for unsigned 64-bit integers, + -1 for single-precision floating-point values, + -2 for double-precision floating-point values, and + `None` for the gamma depth the CRTC expects + @param size:int|(red:int, green:int, blue:int)? + The size of the ramps, either an integer of the size that + is applied to all three channels, three integers with + the size of each channel, or `None` for the sizes the + CRTC expects + ''' + if depth is None: + depth = crtc.depth + if size is not None and isinstance(size, int): + size = (size, size, size) + self.depth = depth + def make_ramp(depth, size): + if depth > 0: + m = 1 << (depth - 1) + return [int(x * m / (size - 1) + 0.5) for x in range(size)] + else: + return [x / (size - 1) for x in range(size)] + self.red = make_ramp(self.depth, crtc.red_gamma_size if size is None else size[0]) + self.green = make_ramp(self.depth, crtc.green_gamma_size if size is None else size[1]) + self.blue = make_ramp(self.depth, crtc.blue_gamma_size if size is None else size[2]) + + def copy(self, depth = None, size = None, interpolation = None): + ''' + Create a copy, optionally with a new depth or size + + @param depth:int? The gamma depth in the copy, 8 for unsigned 8-bit integers, + 16 for unsigned 16-bit integers, 32 for unsigned + 32-bit integers, 64 for unsigned 64-bit integers, + -1 for single-precision floating-point values, + -2 for double-precision floating-point values, and + `None` for the gamma depth of the original (`self`) + @param size:int|(red:int, green:int, blue:int)? + The size of the copy, either an integer of the size that + is applied to all three channels, three integers with + the size of each channel, or `None` for the sizes of + the original + @param interpolation:(red:list<float>, green:list<float>, blue:list<float>)?→ + (red:list<float>, green:list<float>, blue:list<float>) + Function used for interpolation used for resizing the + ramps. `None` for the default, which is intentionally + unspecified. + @return :Ramps The copy + ''' + if size is None: + size = (len(self.red), len(self.green), len(self.blue)) + r = Ramps(None, self.depth if depth is None else depth, size) + ramps = (self.red, self.green, self.blue) + if len(self.red) == len(r.red) and len(self.green) == len(r.green) and len(self.blue) == len(r.blue): + pass + elif interpolation is None: + import interpolation as interpol + ramps = interpol.linearly_interpolate_ramp(*ramps) + else: + ramps = interpolation(*ramps) + r.red[:] = ramps[0] + r.green[:] = ramps[1] + r.blue[:] = ramps[2] + old_max = 1 << (self.depth - 1) if self.depth > 0 else 1 + new_max = 1 << (depth - 1) if depth > 0 else 1 + if new_max != old_max: + for ramp in (r.red, r.green, r.blue): + for i in range(len(ramp)): + ramp[i] = ramp[i] * new_max / old_max + return r + +class LibgammaCRTC(CRTC): + ''' + A CRTC using the libgamma backend + ''' + def __init__(self, screen, crtc): + ''' + Constructor + + The user should not use this, but use `get_outputs` instead + + @param screen:LibgammaScreen The screen of the CRTC, using the libgamma backend + @param crtc:int The index of the CRTC + ''' + import libgamma + CRTC.__init__(self) + self.crtc = libgamma.CRTC(screen, crtc) + if screen.display.caps.crtc_restore: + self.restore = self.crtc.restore + else: + self.restore = None + info = libgamma.information(~0)[0] + connector_types = { + libgamma.LIBGAMMA_CONNECTOR_TYPE_9PinDIN = '9PinDIN', + libgamma.LIBGAMMA_CONNECTOR_TYPE_Component = 'Component', + libgamma.LIBGAMMA_CONNECTOR_TYPE_Composite = 'Composite', + libgamma.LIBGAMMA_CONNECTOR_TYPE_DSI = 'DSI', + libgamma.LIBGAMMA_CONNECTOR_TYPE_DVI = 'DVI', + libgamma.LIBGAMMA_CONNECTOR_TYPE_DVIA = 'DVIA', + libgamma.LIBGAMMA_CONNECTOR_TYPE_DVID = 'DVID', + libgamma.LIBGAMMA_CONNECTOR_TYPE_DVII = 'DVII', + libgamma.LIBGAMMA_CONNECTOR_TYPE_DisplayPort = 'DisplayPort', + libgamma.LIBGAMMA_CONNECTOR_TYPE_HDMI = 'HDMI', + libgamma.LIBGAMMA_CONNECTOR_TYPE_HDMIA = 'HDMIA', + libgamma.LIBGAMMA_CONNECTOR_TYPE_HDMIB = 'HDMIB', + libgamma.LIBGAMMA_CONNECTOR_TYPE_LFP = 'LFP', + libgamma.LIBGAMMA_CONNECTOR_TYPE_LVDS = 'LVDS', + libgamma.LIBGAMMA_CONNECTOR_TYPE_SVIDEO = 'SVIDEO', + libgamma.LIBGAMMA_CONNECTOR_TYPE_TV = 'TV', + libgamma.LIBGAMMA_CONNECTOR_TYPE_VGA = 'VGA', + libgamma.LIBGAMMA_CONNECTOR_TYPE_VIRTUAL = 'VIRTUAL', + libgamma.LIBGAMMA_CONNECTOR_TYPE_eDP = 'eDP' + } + subpixel_orders = { + libgamma.LIBGAMMA_SUBPIXEL_ORDER_HORIZONTAL_BGR = 'BGR', + libgamma.LIBGAMMA_SUBPIXEL_ORDER_HORIZONTAL_RGB = 'RGB', + libgamma.LIBGAMMA_SUBPIXEL_ORDER_NONE = 'None', + libgamma.LIBGAMMA_SUBPIXEL_ORDER_VERTICAL_BGR = 'vBGR', + libgamma.LIBGAMMA_SUBPIXEL_ORDER_VERTICAL_RGB = 'vRGB' + } + self.edid = None if info.edid_error else libgamma.behex_edid_uppercase(info.edid) + self.width_mm = None if info.width_mm_error else info.width_mm + self.height_mm = None if info.height_mm_error else info.height_mm + self.red_gamma_size = None if info.gamma_size_error else info.red_gamma_size + self.green_gamma_size = None if info.gamma_size_error else info.green_gamma_size + self.blue_gamma_size = None if info.gamma_size_error else info.blue_gamma_size + self.gamma_depth = None if info.gamma_depth_error else info.gamma_depth + self.gamma_support = None if info.gamma_support_error else info.gamma_support + self.subpixel_order = None if info.subpixel_order_error else info.subpixel_order + if self.subpixel_order in subpixel_orders: + self.subpixel_order = subpixel_orders[self.subpixel_order] + self.active = None if info.active_error else info.active + self.connector_name = None if info.connector_name_error else info.connector_name + self.connector_type = None if info.connector_type_error else info.connector_type + if self.connector_type in connector_types: + self.connector_type = connector_types[self.connector_type] + if not info.gamma_size_error and not info.gamma_depth_error: + self.ramps = libgamma.GammaRamps(self.red_gamma_size, self.green_gamma_size, + self.blue_gamma_size, depth = self.gamma_depth) + + @property + def backend(self): + ''' + The backend which is used to access the CLUT:s, is either the + name of a library or the name of a display server or protocol + + @return :str The backend which is used to access the CLUT:s + ''' + return 'libgamma' + + def get_gamma(self, low_priority = None, high_priority = None, coalesce = True): + ''' + Get the gamma ramps on the CRTC or the table of applied adjustments + + @param low_priority:int? Do not return adjustments with lower priority than + this value, `None` means that there is not lower bound. + Must be `None` if cooperative gamma is not supported. + @param high_priority:int? Do not return adjustments with higher priority than + this value, `None` means that there is not upper bound. + Must be `None` if cooperative gamma is not supported. + @param coalesce:bool If `False` return the adjustment table, if `True` + return the resulting ramps of all adjustments with a + priority within [`low_priority`, `high_priority`]. + Must be `True` if cooperative gamma is not supported. + @return :Ramps|list<(class:str, priority:int, ramps:Ramps)> + The resulting ramps (if `coalesce` is `True`, or the + ramps if cooperative gamma is not supported) or + a list, sorted by priority, of the adjustments (if + `coalesce` is `False`), where each element is a tuple + with the adjustment's identifier, priority, and ramps. + ''' + if low_priority is not None or high_priority is not None or not coalesce: + raise Exception('Cooperative gamma is not supported') + self.crtc.get_gamma(self.ramps): + return Ramps.copy(self.ramps) + + def set_gamma(self, ramps, priority = None, rule = None, lifespan = 1): + ''' + Set the gamma ramps on the CRTC + + @param ramps:Ramps The gamma ramps + @param priority:int? The priority of the adjustment, `None` for the default. + Must be `None` (default) if cooperative gamma is not supported. + @param rule:str? The rule of the adjustment, `None` for the default. + The rule is the last part of the adjustment's identifier, + if this is unique within the program, it should be universally + unique unless another program is intentionally make it not so. + Must be `None` (default) if cooperative gamma is not supported. + @param lifespan:int The lifespan of the algorithm: `Lifespan.UNTIL_DEATH`, + `Lifespan.UNTIL_REMOVAL` (default), or `Lifespan.REMOVE` + @return The ramps which the adjustments are written to, this will + either be `ramps` or `self.ramps` + ''' + import libgamma + if priority is not None or rule is not None or lifespan != 1: + raise Exception('Cooperative gamma is not supported') + if ramps is self.ramps: + self.crtc.set_gamma(ramps): + return ramps + match = ramps.gamma == self.gamma_depth: + match = match and len(ramps.red) == self.red_gamma_size: + match = match and len(ramps.green) == self.green_gamma_size: + match = match and len(ramps.blue) == self.blue_gamma_size: + if not match: + ramps = Ramps.copy(ramp, self.gamma_depth, + (self.red_gamma_size, self.green_gamma_size, self.blue_gamma_size)) + if isinstance(ramps, libgamma.GammaRamps): + self.crtc.set_gamma(ramps): + return + for i in range(len(ramps.red)): + self.ramps.red[i] = ramps.red[i] + for i in range(len(ramps.green)): + self.ramps.green[i] = ramps.green[i] + for i in range(len(ramps.blue)): + self.ramps.blue[i] = ramps.blue[i] + self.crtc.set_gamma(self.ramps) + return self.ramps + +class LibgammaScreen(Screen): + ''' + A screen (or graphics card) using the libgamma backend + + @variable crtcs:list<LibgammaCRTC> The CRTC:s in the screen + ''' + def __init__(self, display, screen, crtcs = None): + ''' + Constructor + + The user should not use this, but use `get_outputs` instead + + @param display:LibgammaDisplay The display of the screen, using the libgamma backend + @param screen:int The index of the screen + @param crtcs:set<int|str>? List of CRTC:s to include, `None` for all + ''' + import libgamma + self.screen = libgamma.Partition(display, screen) + if display.caps.partition_restore: + self.restore = self.screen.restore + elif display.caps.crtc_restore: + self.restore = self.__restore_all_crtcs + else: + self.restore = None + self.crtcs = [] + if crtcs is not None: + crtcs = list(crtcs) + for i in range(self.display.crtcs_available): + crtc = LibgammaCRTC(self.screen, i) + if (crtcs is None) or (i in crtcs) or (crtc.connector_name in crtcs): + self.crtcs.append(crtc) + elif isinstance(crtc.edid, str) and (crtc.edid.upper() in crtcs): + self.crtcs.append(crtc) + else: + del crtc + + @property + def backend(self): + ''' + The backend which is used to access the CLUT:s, is either the + name of a library or the name of a display server or protocol + + @return :str The backend which is used to access the CLUT:s + ''' + return 'libgamma' + + def __restore_all_crtcs(self): + ''' + Restore the CLUT:s to the (configured) system defaults, for each CRTC + ''' + for crtc for self.crtcs: + crtc.restore() + +class LibgammaDisplay(Display): + ''' + A display using the libgamma backend + + @variable screens:list<LibgammaScreen> The screens in the display + @variable crtcs:list<LibgammaCRTC> The CRTC:s in the display + @variable cooperative:bool Whether the adjustment method supports cooperative gamma + ''' + def __init__(self, method = None, display = None, screens = None, crtcs = None): + ''' + Constructor + + The user should not use this, but use `get_outputs` instead + + @param method:str? The adjustment method, `None` for the best available + @param display:str? The display, `None` to read the environment, or use + the only display if the adjustment method only supports + one display (e.g. like on Windows) + @param screens:set<int>? Lists of screens to include, `None` for all + @param crtcs:set<int|str>|dict<int,set<int|str>>? + List of CRTC:s to include, `None` for all, elements can + either be indices, connector name, or EDID:s; or a + dictionary mapping for screen indices to such lists + ''' + import libgamma + self.cooperative = False + if method is None: + method = get_adjustment_methods()[0] + self.display = libgamma.Site(method, display) + self.caps = libgamma.method_capabilities(method) + if self.caps.site_restore: + self.restore = self.display.restore + elif self.caps.partition_restore or self.caps.crtc_restore: + self.restore = self.__restore_all_partitions + else: + self.restore = None + if screens is None: + screens = range(self.display.partitions_available) + self.screens = [] + self.crtcs = [] + for screen in screens: + cs = crtcs + if isinstance(cs, dict): + cs = cs[screen] if screen in cs else [] + screen = LibgammaScreen(self.site, screen, cs) + self.screens.append(screen) + self.crtcs.extend(screen.crtcs) + + @property + def backend(self): + ''' + The backend which is used to access the CLUT:s, is either the + name of a library or the name of a display server or protocol + + @return :str The backend which is used to access the CLUT:s + ''' + return 'libgamma' + + @property + def lowest_priority(self): + ''' + Return the lowest filter priority accepted by the display server, + or other backend implementing cooperative gamma, that is, the + priority that guarantees that no other filter, that is not also + using this priority, is applied after a filter + + @return :int? The lowest accepted filter priority (applied last), + `None` if cooperative gamma is not supported + ''' + return None + + @property + def highest_priority(self): + ''' + Return the highest filter priority accepted by the display server, + or other backend implementing cooperative gamma, that is, the + priority that guarantees that no other filter, that is not also + using this priority, is applied before a filter + + @return :int? The highest accepted filter priority (applied first), + `None` if cooperative gamma is not supported + ''' + return None + + def __restore_all_partitions(self): + ''' + Restore the CLUT:s to the (configured) system defaults, for each screen + ''' + for screen for self.screens: + screen.restore() + +def get_adjustment_methods(libgamma_level = 0): + ''' + Returns a list of available adjustment methods + + @param libgamma_level:int Which libgamma adjustment methods to include: + -1: None + 0: Methods that the environment suggests will work, excluding fake. + 1: Methods that the environment suggests will work, including fake. + 2: All real non-fake methods. + 3: All real methods. + 4: All methods. + @return :list<str> Adjustment method in order of preference + ''' + ret = [] + if libgamma_level >= 0: + try: + import libgamma + lgamma_meths = libgamma.list_methods(libgamma_level) + lgamma_map = { + libgamma.LIBGAMMA_METHOD_DUMMY = 'dummy', + libgamma.LIBGAMMA_METHOD_X_RANDR = 'randr', + libgamma.LIBGAMMA_METHOD_X_VIDMODE = 'vidmode' + libgamma.LIBGAMMA_METHOD_LINUX_DRM = 'drm', + libgamma.LIBGAMMA_METHOD_W32_GDI = 'w32gdi', + libgamma.LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS = 'quartz' + } + ret += [lgamma_map[m] if m in lgamma_map else m for m in lgamma_meths] + except: + pass + return ret + +def get_outputs(method = None, display = None, screens = None, crtcs = None): + ''' + Get access to CRTC for editing the their gamma ramps + + @param method:str? The adjustment method, `None` for the best available. + "dummy" for libgamma with dummy method, + "randr" for libgamma with X's RAndR protocol, + "vidmode" for libgamma with X's VidMode protocol, + "drm" for libgamma with Direct Rendering Manager, + "w32gdi" for libgamma with Window's GDI, + "quartz" for libgamma with Quartz's (MacOS's) Core Graphics + @param display:str? The display, `None` to read the environment, or use + the only display if the adjustment method only supports + one display (e.g. like on Windows) + @param screens:set<int>? Lists of screens to include, `None` for all + @param crtcs:set<int|str>|dict<int,set<int|str>>? + List of CRTC:s to include, `None` for all, elements can + either be indices, connector name, or EDID:s; or a + dictionary mapping for screen indices to such lists + @return :Display A display + ''' + if isinstance(method, str): + lgamma_meths = { + 'dummy' = libgamma.LIBGAMMA_METHOD_DUMMY, + 'randr' = libgamma.LIBGAMMA_METHOD_X_RANDR, + 'vidmode' = libgamma.LIBGAMMA_METHOD_X_VIDMODE, + 'drm' = libgamma.LIBGAMMA_METHOD_LINUX_DRM, + 'w32gdi' = libgamma.LIBGAMMA_METHOD_W32_GDI, + 'quartz' = libgamma.LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS + } + return LibgammaDisplay(lgamma_meths[method], display, screen, crtc) + else: + return LibgammaDisplay(method, display, screen, crtc) |