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| -rw-r--r-- | src/libgamma_native_method.pyx | 652 |
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diff --git a/src/libgamma_native_method.pyx b/src/libgamma_native_method.pyx new file mode 100644 index 0000000..7e9a867 --- /dev/null +++ b/src/libgamma_native_method.pyx @@ -0,0 +1,652 @@ +# -*- python -*- +''' +pylibgamma — Python 3 wrapper for libgamma +Copyright © 2014 Mattias Andrée (maandree@member.fsf.org) + +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/>. +''' + +cimport cython + +from libc.stdint cimport * +from libc.stdlib cimport malloc +from libc.stddef cimport size_t +from libc.errno cimport errno + + +cdef extern from "libgamma/libgamma-method.h": + ctypedef struct libgamma_gamma_ramps8_t: + # Gamma ramp structure for 8-bit gamma ramps. + size_t red_size + # The size of `red`. + size_t green_size + # The size of `green`. + size_t blue_size + # The size of `blue`. + uint8_t* red + # The gamma ramp for the red channel. + uint8_t* green + # The gamma ramp for the green channel. + uint8_t* blue + # The gamma ramp for the blue channel. + + ctypedef struct libgamma_gamma_ramps16_t: + # Gamma ramp structure for 16-bit gamma ramps. + size_t red_size + # The size of `red`. + size_t green_size + # The size of `green`. + size_t blue_size + # The size of `blue`. + uint16_t* red + # The gamma ramp for the red channel. + uint16_t* green + # The gamma ramp for the green channel. + uint16_t* blue + # The gamma ramp for the blue channel. + + ctypedef struct libgamma_gamma_ramps32_t: + # Gamma ramp structure for 32-bit gamma ramps. + size_t red_size + # The size of `red`. + size_t green_size + # The size of `green`. + size_t blue_size + # The size of `blue`. + uint32_t* red + # The gamma ramp for the red channel. + uint32_t* green + # The gamma ramp for the green channel. + uint32_t* blue + # The gamma ramp for the blue channel. + + ctypedef struct libgamma_gamma_ramps64_t: + # Gamma ramp structure for 64-bit gamma ramps. + size_t red_size + # The size of `red`. + size_t green_size + # The size of `green`. + size_t blue_size + # The size of `blue`. + uint64_t* red + # The gamma ramp for the red channel. + uint64_t* green + # The gamma ramp for the green channel. + uint64_t* blue + # The gamma ramp for the blue channel. + + ctypedef struct libgamma_gamma_rampsf_t: + # Gamma ramp structure for `float` gamma ramps. + size_t red_size + # The size of `red`. + size_t green_size + # The size of `green`. + size_t blue_size + # The size of `blue`. + float* red + # The gamma ramp for the red channel. + float* green + # The gamma ramp for the green channel. + float* blue + # The gamma ramp for the blue channel. + + ctypedef struct libgamma_gamma_rampsd_t: + # Gamma ramp structure for `double` gamma ramps. + size_t red_size + # The size of `red`. + size_t green_size + # The size of `green`. + size_t blue_size + # The size of `blue`. + double* red + # The gamma ramp for the red channel. + double* green + # The gamma ramp for the green channel. + double* blue + # The gamma ramp for the blue channel. + + +cdef extern int libgamma_gamma_ramps8_initialise(libgamma_gamma_ramps8_t* this) +''' +Initialise a gamma ramp in the proper way that allows all adjustment +methods to read from and write to it without causing segmentation violation. + +The input must have `red_size`, `green_size` and `blue_size` set to the +sizes of the gamma ramps that should be allocated. + +@param this The gamma ramps. +@return Zero on success, -1 on allocation error, `errno` will be set accordingly. +''' + +cdef extern void libgamma_gamma_ramps8_free(libgamma_gamma_ramps8_t* this) +''' +Release resources that are held by a gamma ramp strcuture that +has been allocated by `libgamma_gamma_ramps8_initialise` or otherwise +initialises in the proper manner, as well as release the pointer +to the structure. + +@param this The gamma ramps. +''' + + +cdef extern int libgamma_gamma_ramps16_initialise(libgamma_gamma_ramps16_t* this) +''' +Initialise a gamma ramp in the proper way that allows all adjustment +methods to read from and write to it without causing segmentation violation. + +The input must have `red_size`, `green_size` and `blue_size` set to the +sizes of the gamma ramps that should be allocated. + +@param this The gamma ramps. +@return Zero on success, -1 on allocation error, `errno` will be set accordingly. +''' + +cdef extern void libgamma_gamma_ramps16_free(libgamma_gamma_ramps16_t* this) +''' +Release resources that are held by a gamma ramp strcuture that +has been allocated by `libgamma_gamma_ramps16_initialise` or otherwise +initialises in the proper manner, as well as release the pointer +to the structure. + +@param this The gamma ramps. +''' + + +cdef extern int libgamma_gamma_ramps32_initialise(libgamma_gamma_ramps32_t* this) +''' +Initialise a gamma ramp in the proper way that allows all adjustment +methods to read from and write to it without causing segmentation violation. + +The input must have `red_size`, `green_size` and `blue_size` set to the +sizes of the gamma ramps that should be allocated. + +@param this The gamma ramps. +@return Zero on success, -1 on allocation error, `errno` will be set accordingly. +''' + +cdef extern void libgamma_gamma_ramps32_free(libgamma_gamma_ramps32_t* this) +''' +Release resources that are held by a gamma ramp strcuture that +has been allocated by `libgamma_gamma_ramps32_initialise` or otherwise +initialises in the proper manner, as well as release the pointer +to the structure. + +@param this The gamma ramps. +''' + + +cdef extern int libgamma_gamma_ramps64_initialise(libgamma_gamma_ramps64_t* this) +''' +Initialise a gamma ramp in the proper way that allows all adjustment +methods to read from and write to it without causing segmentation violation. + +The input must have `red_size`, `green_size` and `blue_size` set to the +sizes of the gamma ramps that should be allocated. + +@param this The gamma ramps. +@return Zero on success, -1 on allocation error, `errno` will be set accordingly. +''' + +cdef extern void libgamma_gamma_ramps64_free(libgamma_gamma_ramps64_t* this) +''' +Release resources that are held by a gamma ramp strcuture that +has been allocated by `libgamma_gamma_ramps64_initialise` or otherwise +initialises in the proper manner, as well as release the pointer +to the structure. + +@param this The gamma ramps. +''' + + +cdef extern int libgamma_gamma_rampsf_initialise(libgamma_gamma_rampsf_t* this) +''' +Initialise a gamma ramp in the proper way that allows all adjustment +methods to read from and write to it without causing segmentation violation. + +The input must have `red_size`, `green_size` and `blue_size` set to the +sizes of the gamma ramps that should be allocated. + +@param this The gamma ramps. +@return Zero on success, -1 on allocation error, `errno` will be set accordingly. +''' + +cdef extern void libgamma_gamma_rampsf_free(libgamma_gamma_rampsf_t* this) +''' +Release resources that are held by a gamma ramp strcuture that +has been allocated by `libgamma_gamma_rampsf_initialise` or otherwise +initialises in the proper manner, as well as release the pointer +to the structure. + +@param this The gamma ramps. +''' + + +cdef extern int libgamma_gamma_rampsd_initialise(libgamma_gamma_rampsd_t* this) +''' +Initialise a gamma ramp in the proper way that allows all adjustment +methods to read from and write to it without causing segmentation violation. + +The input must have `red_size`, `green_size` and `blue_size` set to the +sizes of the gamma ramps that should be allocated. + +@param this The gamma ramps +@return Zero on success, -1 on allocation error, `errno` will be set accordingly. +''' + +cdef extern void libgamma_gamma_rampsd_free(libgamma_gamma_rampsd_t* this) +''' +Release resources that are held by a gamma ramp strcuture that +has been allocated by `libgamma_gamma_rampsd_initialise` or otherwise +initialises in the proper manner, as well as release the pointer +to the structure. + +@param this The gamma ramps. +''' + + + +def libgamma_native_gamma_ramps8_create(red_size : int, green_size : int, blue_size : int): + ''' + Create a gamma ramp in the proper way that allows all adjustment + methods to read from and write to it without causing segmentation violation. + + @param red_size The size of the gamma ramp for the red channel + @param green_size The size of the gamma ramp for the green channel + @param blue_size The size of the gamma ramp for the blue channel + @return :(int){4}|int The tuple that describes the created data, `errno` on failure: + Element 1: The address of the gamma ramp structure + Element 2: The address of the gamma ramp for the red channel + Element 3: The address of the gamma ramp for the green channel + Element 4: The address of the gamma ramp for the blue channel + ''' + cdef void* allocation = malloc(sizeof(libgamma_gamma_ramps8_t)) + cdef libgamma_gamma_ramps8_t* item = <libgamma_gamma_ramps8_t*>allocation + cdef size_t red, green, blue + if item == NULL: + return errno + red = <size_t><void*>(item.red) + green = <size_t><void*>(item.green) + blue = <size_t><void*>(item.blue) + return (int(<size_t>allocation), int(red), int(blue), int(blue)) + + +def libgamma_native_gamma_ramps8_free(this : int): + ''' + Release resources that are held by a gamma ramp strcuture that + has been allocated by `libgamma_native_gamma_ramps8_create` or otherwise + created in the proper manner, as well as release the pointer + to the structure. + + @param this The gamma ramps. + ''' + cdef void* address = <void*><size_t>this + cdef libgamma_gamma_ramps8_t* item = <libgamma_gamma_ramps8_t*>address + libgamma_gamma_ramps8_free(item) + + +def libgamma_native_gamma_ramps8_get(this : int, index : int) -> int: + ''' + Read a stop in a gamma ramp. + + @param this The gamma ramp. + @param index The index of the gamma ramp stop. + @return The value of the gamma ramp stop. + ''' + cdef void* address = <void*><size_t>this + cdef uint8_t* ramp = <uint8_t*>address + return int(ramp[<size_t>index]) + + +def libgamma_native_gamma_ramps8_set(this : int, index : int, value : int): + ''' + Modify a stop in a gamma ramp. + + @param this The gamma ramp. + @param index The index of the gamma ramp stop. + @param value The value of the gamma ramp stop. + ''' + cdef void* address = <void*><size_t>this + cdef uint8_t* ramp = <uint8_t*>address + ramp[<size_t>index] = <uint8_t>value + + + +def libgamma_native_gamma_ramps16_create(red_size : int, green_size : int, blue_size : int): + ''' + Create a gamma ramp in the proper way that allows all adjustment + methods to read from and write to it without causing segmentation violation. + + @param red_size The size of the gamma ramp for the red channel + @param green_size The size of the gamma ramp for the green channel + @param blue_size The size of the gamma ramp for the blue channel + @return :(int){4}|int The tuple that describes the created data, `errno` on failure: + Element 1: The address of the gamma ramp structure + Element 2: The address of the gamma ramp for the red channel + Element 3: The address of the gamma ramp for the green channel + Element 4: The address of the gamma ramp for the blue channel + ''' + cdef void* allocation = malloc(sizeof(libgamma_gamma_ramps16_t)) + cdef libgamma_gamma_ramps16_t* item = <libgamma_gamma_ramps16_t*>allocation + cdef size_t red, green, blue + if item == NULL: + return errno + red = <size_t><void*>(item.red) + green = <size_t><void*>(item.green) + blue = <size_t><void*>(item.blue) + return (int(<size_t>allocation), int(red), int(blue), int(blue)) + + +def libgamma_native_gamma_ramps16_free(this : int): + ''' + Release resources that are held by a gamma ramp strcuture that + has been allocated by `libgamma_native_gamma_ramps16_create` or otherwise + created in the proper manner, as well as release the pointer + to the structure. + + @param this The gamma ramps. + ''' + cdef void* address = <void*><size_t>this + cdef libgamma_gamma_ramps16_t* item = <libgamma_gamma_ramps16_t*>address + libgamma_gamma_ramps16_free(item) + + +def libgamma_native_gamma_ramps16_get(this : int, index : int) -> int: + ''' + Read a stop in a gamma ramp. + + @param this The gamma ramp. + @param index The index of the gamma ramp stop. + @return The value of the gamma ramp stop. + ''' + cdef void* address = <void*><size_t>this + cdef uint16_t* ramp = <uint16_t*>address + return int(ramp[<size_t>index]) + + +def libgamma_native_gamma_ramps16_set(this : int, index : int, value : int): + ''' + Modify a stop in a gamma ramp. + + @param this The gamma ramp. + @param index The index of the gamma ramp stop. + @param value The value of the gamma ramp stop. + ''' + cdef void* address = <void*><size_t>this + cdef uint16_t* ramp = <uint16_t*>address + ramp[<size_t>index] = <uint16_t>value + + + +def libgamma_native_gamma_ramps32_create(red_size : int, green_size : int, blue_size : int): + ''' + Create a gamma ramp in the proper way that allows all adjustment + methods to read from and write to it without causing segmentation violation. + + @param red_size The size of the gamma ramp for the red channel + @param green_size The size of the gamma ramp for the green channel + @param blue_size The size of the gamma ramp for the blue channel + @return :(int){4}|int The tuple that describes the created data, `errno` on failure: + Element 1: The address of the gamma ramp structure + Element 2: The address of the gamma ramp for the red channel + Element 3: The address of the gamma ramp for the green channel + Element 4: The address of the gamma ramp for the blue channel + ''' + cdef void* allocation = malloc(sizeof(libgamma_gamma_ramps32_t)) + cdef libgamma_gamma_ramps32_t* item = <libgamma_gamma_ramps32_t*>allocation + cdef size_t red, green, blue + if item == NULL: + return errno + red = <size_t><void*>(item.red) + green = <size_t><void*>(item.green) + blue = <size_t><void*>(item.blue) + return (int(<size_t>allocation), int(red), int(blue), int(blue)) + + +def libgamma_native_gamma_ramps32_free(this : int): + ''' + Release resources that are held by a gamma ramp strcuture that + has been allocated by `libgamma_native_gamma_ramps32_create` or otherwise + created in the proper manner, as well as release the pointer + to the structure. + + @param this The gamma ramps. + ''' + cdef void* address = <void*><size_t>this + cdef libgamma_gamma_ramps32_t* item = <libgamma_gamma_ramps32_t*>address + libgamma_gamma_ramps32_free(item) + + +def libgamma_native_gamma_ramps32_get(this : int, index : int) -> int: + ''' + Read a stop in a gamma ramp. + + @param this The gamma ramp. + @param index The index of the gamma ramp stop. + @return The value of the gamma ramp stop. + ''' + cdef void* address = <void*><size_t>this + cdef uint32_t* ramp = <uint32_t*>address + return int(ramp[<size_t>index]) + + +def libgamma_native_gamma_ramps32_set(this : int, index : int, value : int): + ''' + Modify a stop in a gamma ramp. + + @param this The gamma ramp. + @param index The index of the gamma ramp stop. + @param value The value of the gamma ramp stop. + ''' + cdef void* address = <void*><size_t>this + cdef uint32_t* ramp = <uint32_t*>address + ramp[<size_t>index] = <uint32_t>value + + + +def libgamma_native_gamma_ramps64_create(red_size : int, green_size : int, blue_size : int): + ''' + Create a gamma ramp in the proper way that allows all adjustment + methods to read from and write to it without causing segmentation violation. + + @param red_size The size of the gamma ramp for the red channel + @param green_size The size of the gamma ramp for the green channel + @param blue_size The size of the gamma ramp for the blue channel + @return :(int){4}|int The tuple that describes the created data, `errno` on failure: + Element 1: The address of the gamma ramp structure + Element 2: The address of the gamma ramp for the red channel + Element 3: The address of the gamma ramp for the green channel + Element 4: The address of the gamma ramp for the blue channel + ''' + cdef void* allocation = malloc(sizeof(libgamma_gamma_ramps64_t)) + cdef libgamma_gamma_ramps64_t* item = <libgamma_gamma_ramps64_t*>allocation + cdef size_t red, green, blue + if item == NULL: + return errno + red = <size_t><void*>(item.red) + green = <size_t><void*>(item.green) + blue = <size_t><void*>(item.blue) + return (int(<size_t>allocation), int(red), int(blue), int(blue)) + + +def libgamma_native_gamma_ramps64_free(this : int): + ''' + Release resources that are held by a gamma ramp strcuture that + has been allocated by `libgamma_native_gamma_ramps64_create` or otherwise + created in the proper manner, as well as release the pointer + to the structure. + + @param this The gamma ramps. + ''' + cdef void* address = <void*><size_t>this + cdef libgamma_gamma_ramps64_t* item = <libgamma_gamma_ramps64_t*>address + libgamma_gamma_ramps64_free(item) + + +def libgamma_native_gamma_ramps64_get(this : int, index : int) -> int: + ''' + Read a stop in a gamma ramp. + + @param this The gamma ramp. + @param index The index of the gamma ramp stop. + @return The value of the gamma ramp stop. + ''' + cdef void* address = <void*><size_t>this + cdef uint64_t* ramp = <uint64_t*>address + return int(ramp[<size_t>index]) + + +def libgamma_native_gamma_ramps64_set(this : int, index : int, value : int): + ''' + Modify a stop in a gamma ramp. + + @param this The gamma ramp. + @param index The index of the gamma ramp stop. + @param value The value of the gamma ramp stop. + ''' + cdef void* address = <void*><size_t>this + cdef uint64_t* ramp = <uint64_t*>address + ramp[<size_t>index] = <uint64_t>value + + + +def libgamma_native_gamma_rampsf_create(red_size : int, green_size : int, blue_size : int): + ''' + Create a gamma ramp in the proper way that allows all adjustment + methods to read from and write to it without causing segmentation violation. + + @param red_size The size of the gamma ramp for the red channel + @param green_size The size of the gamma ramp for the green channel + @param blue_size The size of the gamma ramp for the blue channel + @return :(int){4}|int The tuple that describes the created data, `errno` on failure: + Element 1: The address of the gamma ramp structure + Element 2: The address of the gamma ramp for the red channel + Element 3: The address of the gamma ramp for the green channel + Element 4: The address of the gamma ramp for the blue channel + ''' + cdef void* allocation = malloc(sizeof(libgamma_gamma_rampsf_t)) + cdef libgamma_gamma_rampsf_t* item = <libgamma_gamma_rampsf_t*>allocation + cdef size_t red, green, blue + if item == NULL: + return errno + red = <size_t><void*>(item.red) + green = <size_t><void*>(item.green) + blue = <size_t><void*>(item.blue) + return (int(<size_t>allocation), int(red), int(blue), int(blue)) + + +def libgamma_native_gamma_rampsf_free(this : int): + ''' + Release resources that are held by a gamma ramp strcuture that + has been allocated by `libgamma_native_gamma_rampsf_create` or otherwise + created in the proper manner, as well as release the pointer + to the structure. + + @param this The gamma ramps. + ''' + cdef void* address = <void*><size_t>this + cdef libgamma_gamma_rampsf_t* item = <libgamma_gamma_rampsf_t*>address + libgamma_gamma_rampsf_free(item) + + +def libgamma_native_gamma_rampsf_get(this : int, index : int) -> int: + ''' + Read a stop in a gamma ramp. + + @param this The gamma ramp. + @param index The index of the gamma ramp stop. + @return The value of the gamma ramp stop. + ''' + cdef void* address = <void*><size_t>this + cdef float* ramp = <float*>address + return int(ramp[<size_t>index]) + + +def libgamma_native_gamma_rampsf_set(this : int, index : int, value : int): + ''' + Modify a stop in a gamma ramp. + + @param this The gamma ramp. + @param index The index of the gamma ramp stop. + @param value The value of the gamma ramp stop. + ''' + cdef void* address = <void*><size_t>this + cdef float* ramp = <float*>address + ramp[<size_t>index] = <float>value + + + +def libgamma_native_gamma_rampsd_create(red_size : int, green_size : int, blue_size : int): + ''' + Create a gamma ramp in the proper way that allows all adjustment + methods to read from and write to it without causing segmentation violation. + + @param red_size The size of the gamma ramp for the red channel + @param green_size The size of the gamma ramp for the green channel + @param blue_size The size of the gamma ramp for the blue channel + @return :(int){4}|int The tuple that describes the created data, `errno` on failure: + Element 1: The address of the gamma ramp structure + Element 2: The address of the gamma ramp for the red channel + Element 3: The address of the gamma ramp for the green channel + Element 4: The address of the gamma ramp for the blue channel + ''' + cdef void* allocation = malloc(sizeof(libgamma_gamma_rampsd_t)) + cdef libgamma_gamma_rampsd_t* item = <libgamma_gamma_rampsd_t*>allocation + cdef size_t red, green, blue + if item == NULL: + return errno + red = <size_t><void*>(item.red) + green = <size_t><void*>(item.green) + blue = <size_t><void*>(item.blue) + return (int(<size_t>allocation), int(red), int(blue), int(blue)) + + +def libgamma_native_gamma_rampsd_free(this : int): + ''' + Release resources that are held by a gamma ramp strcuture that + has been allocated by `libgamma_native_gamma_rampsd_create` or otherwise + created in the proper manner, as well as release the pointer + to the structure. + + @param this The gamma ramps. + ''' + cdef void* address = <void*><size_t>this + cdef libgamma_gamma_rampsd_t* item = <libgamma_gamma_rampsd_t*>address + libgamma_gamma_rampsd_free(item) + + +def libgamma_native_gamma_rampsd_get(this : int, index : int) -> int: + ''' + Read a stop in a gamma ramp. + + @param this The gamma ramp. + @param index The index of the gamma ramp stop. + @return The value of the gamma ramp stop. + ''' + cdef void* address = <void*><size_t>this + cdef double* ramp = <double*>address + return int(ramp[<size_t>index]) + + +def libgamma_native_gamma_rampsd_set(this : int, index : int, value : int): + ''' + Modify a stop in a gamma ramp. + + @param this The gamma ramp. + @param index The index of the gamma ramp stop. + @param value The value of the gamma ramp stop. + ''' + cdef void* address = <void*><size_t>this + cdef double* ramp = <double*>address + ramp[<size_t>index] = <double>value + |