Generated by Cython 0.29.32
Yellow lines hint at Python interaction.
Click on a line that starts with a "+" to see the C code that Cython generated for it.
Raw output: shader_gpu.cpp
+0001: # cython: binding=False, boundscheck=False, wraparound=False, nonecheck=False, cdivision=True, profile=False
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0002: # cython: optimize.use_switch=True
0003: # cython: warn.maybe_uninitialized=False
0004: # cython: warn.unused=False
0005: # cython: warn.unused_result=False
0006: # cython: warn.unused_arg=False
0007: # cython: language_level=3
0008: # encoding: utf-8
0009:
0010:
0011:
0012: """
0013: GNU GENERAL PUBLIC LICENSE
0014: Version 3, 29 June 2007
0015:
0016: Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
0017: Everyone is permitted to copy and distribute verbatim copies
0018: of this license document, but changing it is not allowed.
0019:
0020: Copyright Yoann Berenguer
0021: """
0022:
0023:
+0024: import warnings
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0025:
+0026: from PygameShader import array2d_normalized_c, filtering24_c, heatmap_convert
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+0027: from PygameShader.shader import shader_bloom_fast1
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0028:
+0029: warnings.filterwarnings("ignore", category=FutureWarning)
__Pyx_GetModuleGlobalName(__pyx_t_1, __pyx_n_s_warnings); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 29, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_1); __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_filterwarnings); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 29, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_2); __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0; __pyx_t_1 = __Pyx_PyDict_NewPresized(1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 29, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_1); if (PyDict_SetItem(__pyx_t_1, __pyx_n_s_category, __pyx_builtin_FutureWarning) < 0) __PYX_ERR(0, 29, __pyx_L1_error) __pyx_t_3 = __Pyx_PyObject_Call(__pyx_t_2, __pyx_tuple__46, __pyx_t_1); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 29, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_3); __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0; __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0; __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0; /* … */ __pyx_tuple__46 = PyTuple_Pack(1, __pyx_n_u_ignore); if (unlikely(!__pyx_tuple__46)) __PYX_ERR(0, 29, __pyx_L1_error) __Pyx_GOTREF(__pyx_tuple__46); __Pyx_GIVEREF(__pyx_tuple__46);
+0030: warnings.filterwarnings("ignore", category=RuntimeWarning)
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+0031: warnings.filterwarnings("ignore", category=ImportWarning)
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0032:
+0033: try:
{
/*try:*/ {
/* … */
}
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/* … */
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goto __pyx_L1_error;
__pyx_L7_try_end:;
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+0034: import numpy
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+0035: from numpy import empty, uint8, int16, float32, asarray, linspace, \
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0036: ascontiguousarray, zeros, uint16, uint32, int32, int8
+0037: except ImportError:
__pyx_t_7 = __Pyx_PyErr_ExceptionMatches(__pyx_builtin_ImportError); if (__pyx_t_7) { __Pyx_AddTraceback("PygameShader.shader_gpu", __pyx_clineno, __pyx_lineno, __pyx_filename); if (__Pyx_GetException(&__pyx_t_2, &__pyx_t_1, &__pyx_t_3) < 0) __PYX_ERR(0, 37, __pyx_L4_except_error) __Pyx_GOTREF(__pyx_t_2); __Pyx_GOTREF(__pyx_t_1); __Pyx_GOTREF(__pyx_t_3);
+0038: raise ImportError("\n<numpy> library is missing on your system."
__pyx_t_8 = __Pyx_PyObject_Call(__pyx_builtin_ImportError, __pyx_tuple__47, NULL); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 38, __pyx_L4_except_error) __Pyx_GOTREF(__pyx_t_8); __Pyx_Raise(__pyx_t_8, 0, 0, 0); __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0; __PYX_ERR(0, 38, __pyx_L4_except_error) } goto __pyx_L4_except_error; __pyx_L4_except_error:; /* … */ __pyx_tuple__47 = PyTuple_Pack(1, __pyx_kp_u_numpy_library_is_missing_on_you); if (unlikely(!__pyx_tuple__47)) __PYX_ERR(0, 38, __pyx_L1_error) __Pyx_GOTREF(__pyx_tuple__47); __Pyx_GIVEREF(__pyx_tuple__47);
0039: "\nTry: \n C:\\pip install numpy on a window command prompt.")
0040:
0041: cimport numpy as np
0042:
+0043: try:
{
/*try:*/ {
/* … */
}
}
0044: cimport cython
0045: from cython.parallel cimport prange
0046:
0047: except ImportError:
0048: raise ImportError("\n<cython> library is missing on your system."
0049: "\nTry: \n C:\\pip install cython on a window command prompt.")
0050:
0051: # PYGAME IS REQUIRED
+0052: try:
{
/*try:*/ {
/* … */
}
__Pyx_XDECREF(__pyx_t_4); __pyx_t_4 = 0;
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goto __pyx_L21_try_end;
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__Pyx_XDECREF(__pyx_t_8); __pyx_t_8 = 0;
/* … */
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__Pyx_ExceptionReset(__pyx_t_4, __pyx_t_5, __pyx_t_6);
goto __pyx_L1_error;
__pyx_L21_try_end:;
}
+0053: import pygame
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+0054: from pygame import Color, Surface, SRCALPHA, RLEACCEL, BufferProxy, HWACCEL, HWSURFACE, \
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0055: QUIT, K_SPACE, BLEND_RGB_ADD, Rect, BLEND_RGB_MAX, BLEND_RGB_MIN
+0056: from pygame.surfarray import pixels3d, array_alpha, pixels_alpha, array3d, \
__pyx_t_1 = PyList_New(9); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 56, __pyx_L16_error) __Pyx_GOTREF(__pyx_t_1); __Pyx_INCREF(__pyx_n_s_pixels3d); __Pyx_GIVEREF(__pyx_n_s_pixels3d); PyList_SET_ITEM(__pyx_t_1, 0, __pyx_n_s_pixels3d); __Pyx_INCREF(__pyx_n_s_array_alpha); __Pyx_GIVEREF(__pyx_n_s_array_alpha); PyList_SET_ITEM(__pyx_t_1, 1, __pyx_n_s_array_alpha); __Pyx_INCREF(__pyx_n_s_pixels_alpha); __Pyx_GIVEREF(__pyx_n_s_pixels_alpha); PyList_SET_ITEM(__pyx_t_1, 2, __pyx_n_s_pixels_alpha); __Pyx_INCREF(__pyx_n_s_array3d); __Pyx_GIVEREF(__pyx_n_s_array3d); PyList_SET_ITEM(__pyx_t_1, 3, __pyx_n_s_array3d); __Pyx_INCREF(__pyx_n_s_make_surface); __Pyx_GIVEREF(__pyx_n_s_make_surface); PyList_SET_ITEM(__pyx_t_1, 4, __pyx_n_s_make_surface); __Pyx_INCREF(__pyx_n_s_blit_array); __Pyx_GIVEREF(__pyx_n_s_blit_array); PyList_SET_ITEM(__pyx_t_1, 5, __pyx_n_s_blit_array); __Pyx_INCREF(__pyx_n_s_pixels_red); __Pyx_GIVEREF(__pyx_n_s_pixels_red); PyList_SET_ITEM(__pyx_t_1, 6, __pyx_n_s_pixels_red); __Pyx_INCREF(__pyx_n_s_pixels_green); __Pyx_GIVEREF(__pyx_n_s_pixels_green); PyList_SET_ITEM(__pyx_t_1, 7, __pyx_n_s_pixels_green); __Pyx_INCREF(__pyx_n_s_pixels_blue); __Pyx_GIVEREF(__pyx_n_s_pixels_blue); PyList_SET_ITEM(__pyx_t_1, 8, __pyx_n_s_pixels_blue); __pyx_t_3 = __Pyx_Import(__pyx_n_s_pygame_surfarray, __pyx_t_1, 0); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 56, __pyx_L16_error) __Pyx_GOTREF(__pyx_t_3); __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0; __pyx_t_1 = __Pyx_ImportFrom(__pyx_t_3, __pyx_n_s_pixels3d); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 56, __pyx_L16_error) __Pyx_GOTREF(__pyx_t_1); if (PyDict_SetItem(__pyx_d, __pyx_n_s_pixels3d, __pyx_t_1) < 0) __PYX_ERR(0, 56, __pyx_L16_error) __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0; __pyx_t_1 = __Pyx_ImportFrom(__pyx_t_3, __pyx_n_s_array_alpha); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 56, __pyx_L16_error) __Pyx_GOTREF(__pyx_t_1); if (PyDict_SetItem(__pyx_d, __pyx_n_s_array_alpha, __pyx_t_1) < 0) __PYX_ERR(0, 56, __pyx_L16_error) __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0; __pyx_t_1 = __Pyx_ImportFrom(__pyx_t_3, __pyx_n_s_pixels_alpha); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 56, __pyx_L16_error) __Pyx_GOTREF(__pyx_t_1); if (PyDict_SetItem(__pyx_d, __pyx_n_s_pixels_alpha, __pyx_t_1) < 0) __PYX_ERR(0, 56, __pyx_L16_error) __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0; __pyx_t_1 = __Pyx_ImportFrom(__pyx_t_3, __pyx_n_s_array3d); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 56, __pyx_L16_error) __Pyx_GOTREF(__pyx_t_1); if (PyDict_SetItem(__pyx_d, __pyx_n_s_array3d, __pyx_t_1) < 0) __PYX_ERR(0, 56, __pyx_L16_error) __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0; __pyx_t_1 = __Pyx_ImportFrom(__pyx_t_3, __pyx_n_s_make_surface); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 56, __pyx_L16_error) __Pyx_GOTREF(__pyx_t_1); if (PyDict_SetItem(__pyx_d, __pyx_n_s_make_surface, __pyx_t_1) < 0) __PYX_ERR(0, 57, __pyx_L16_error) __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0; __pyx_t_1 = __Pyx_ImportFrom(__pyx_t_3, __pyx_n_s_blit_array); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 56, __pyx_L16_error) __Pyx_GOTREF(__pyx_t_1); if (PyDict_SetItem(__pyx_d, __pyx_n_s_blit_array, __pyx_t_1) < 0) __PYX_ERR(0, 57, __pyx_L16_error) __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0; __pyx_t_1 = __Pyx_ImportFrom(__pyx_t_3, __pyx_n_s_pixels_red); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 56, __pyx_L16_error) __Pyx_GOTREF(__pyx_t_1); if (PyDict_SetItem(__pyx_d, __pyx_n_s_pixels_red, __pyx_t_1) < 0) __PYX_ERR(0, 57, __pyx_L16_error) __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0; __pyx_t_1 = __Pyx_ImportFrom(__pyx_t_3, __pyx_n_s_pixels_green); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 56, __pyx_L16_error) __Pyx_GOTREF(__pyx_t_1); if (PyDict_SetItem(__pyx_d, __pyx_n_s_pixels_green, __pyx_t_1) < 0) __PYX_ERR(0, 58, __pyx_L16_error) __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0; __pyx_t_1 = __Pyx_ImportFrom(__pyx_t_3, __pyx_n_s_pixels_blue); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 56, __pyx_L16_error) __Pyx_GOTREF(__pyx_t_1); if (PyDict_SetItem(__pyx_d, __pyx_n_s_pixels_blue, __pyx_t_1) < 0) __PYX_ERR(0, 58, __pyx_L16_error) __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0; __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
0057: make_surface, blit_array, pixels_red, \
0058: pixels_green, pixels_blue
+0059: from pygame.image import frombuffer, fromstring, tostring
__pyx_t_3 = PyList_New(3); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 59, __pyx_L16_error) __Pyx_GOTREF(__pyx_t_3); __Pyx_INCREF(__pyx_n_s_frombuffer); __Pyx_GIVEREF(__pyx_n_s_frombuffer); PyList_SET_ITEM(__pyx_t_3, 0, __pyx_n_s_frombuffer); __Pyx_INCREF(__pyx_n_s_fromstring); __Pyx_GIVEREF(__pyx_n_s_fromstring); PyList_SET_ITEM(__pyx_t_3, 1, __pyx_n_s_fromstring); __Pyx_INCREF(__pyx_n_s_tostring); __Pyx_GIVEREF(__pyx_n_s_tostring); PyList_SET_ITEM(__pyx_t_3, 2, __pyx_n_s_tostring); __pyx_t_1 = __Pyx_Import(__pyx_n_s_pygame_image, __pyx_t_3, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 59, __pyx_L16_error) __Pyx_GOTREF(__pyx_t_1); __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0; __pyx_t_3 = __Pyx_ImportFrom(__pyx_t_1, __pyx_n_s_frombuffer); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 59, __pyx_L16_error) __Pyx_GOTREF(__pyx_t_3); if (PyDict_SetItem(__pyx_d, __pyx_n_s_frombuffer, __pyx_t_3) < 0) __PYX_ERR(0, 59, __pyx_L16_error) __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0; __pyx_t_3 = __Pyx_ImportFrom(__pyx_t_1, __pyx_n_s_fromstring); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 59, __pyx_L16_error) __Pyx_GOTREF(__pyx_t_3); if (PyDict_SetItem(__pyx_d, __pyx_n_s_fromstring, __pyx_t_3) < 0) __PYX_ERR(0, 59, __pyx_L16_error) __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0; __pyx_t_3 = __Pyx_ImportFrom(__pyx_t_1, __pyx_n_s_tostring); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 59, __pyx_L16_error) __Pyx_GOTREF(__pyx_t_3); if (PyDict_SetItem(__pyx_d, __pyx_n_s_tostring, __pyx_t_3) < 0) __PYX_ERR(0, 59, __pyx_L16_error) __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0; __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+0060: from pygame.math import Vector2
__pyx_t_1 = PyList_New(1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 60, __pyx_L16_error) __Pyx_GOTREF(__pyx_t_1); __Pyx_INCREF(__pyx_n_s_Vector2); __Pyx_GIVEREF(__pyx_n_s_Vector2); PyList_SET_ITEM(__pyx_t_1, 0, __pyx_n_s_Vector2); __pyx_t_3 = __Pyx_Import(__pyx_n_s_pygame_math, __pyx_t_1, 0); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 60, __pyx_L16_error) __Pyx_GOTREF(__pyx_t_3); __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0; __pyx_t_1 = __Pyx_ImportFrom(__pyx_t_3, __pyx_n_s_Vector2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 60, __pyx_L16_error) __Pyx_GOTREF(__pyx_t_1); if (PyDict_SetItem(__pyx_d, __pyx_n_s_Vector2, __pyx_t_1) < 0) __PYX_ERR(0, 60, __pyx_L16_error) __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0; __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+0061: from pygame import _freetype
__pyx_t_3 = PyList_New(1); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 61, __pyx_L16_error) __Pyx_GOTREF(__pyx_t_3); __Pyx_INCREF(__pyx_n_s_freetype); __Pyx_GIVEREF(__pyx_n_s_freetype); PyList_SET_ITEM(__pyx_t_3, 0, __pyx_n_s_freetype); __pyx_t_1 = __Pyx_Import(__pyx_n_s_pygame, __pyx_t_3, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 61, __pyx_L16_error) __Pyx_GOTREF(__pyx_t_1); __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0; __pyx_t_3 = __Pyx_ImportFrom(__pyx_t_1, __pyx_n_s_freetype); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 61, __pyx_L16_error) __Pyx_GOTREF(__pyx_t_3); if (PyDict_SetItem(__pyx_d, __pyx_n_s_freetype, __pyx_t_3) < 0) __PYX_ERR(0, 61, __pyx_L16_error) __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0; __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+0062: from pygame._freetype import STYLE_STRONG, STYLE_NORMAL
__pyx_t_1 = PyList_New(2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 62, __pyx_L16_error) __Pyx_GOTREF(__pyx_t_1); __Pyx_INCREF(__pyx_n_s_STYLE_STRONG); __Pyx_GIVEREF(__pyx_n_s_STYLE_STRONG); PyList_SET_ITEM(__pyx_t_1, 0, __pyx_n_s_STYLE_STRONG); __Pyx_INCREF(__pyx_n_s_STYLE_NORMAL); __Pyx_GIVEREF(__pyx_n_s_STYLE_NORMAL); PyList_SET_ITEM(__pyx_t_1, 1, __pyx_n_s_STYLE_NORMAL); __pyx_t_3 = __Pyx_Import(__pyx_n_s_pygame__freetype, __pyx_t_1, 0); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 62, __pyx_L16_error) __Pyx_GOTREF(__pyx_t_3); __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0; __pyx_t_1 = __Pyx_ImportFrom(__pyx_t_3, __pyx_n_s_STYLE_STRONG); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 62, __pyx_L16_error) __Pyx_GOTREF(__pyx_t_1); if (PyDict_SetItem(__pyx_d, __pyx_n_s_STYLE_STRONG, __pyx_t_1) < 0) __PYX_ERR(0, 62, __pyx_L16_error) __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0; __pyx_t_1 = __Pyx_ImportFrom(__pyx_t_3, __pyx_n_s_STYLE_NORMAL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 62, __pyx_L16_error) __Pyx_GOTREF(__pyx_t_1); if (PyDict_SetItem(__pyx_d, __pyx_n_s_STYLE_NORMAL, __pyx_t_1) < 0) __PYX_ERR(0, 62, __pyx_L16_error) __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0; __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+0063: from pygame.transform import scale, smoothscale, rotate, scale2x
__pyx_t_3 = PyList_New(4); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 63, __pyx_L16_error) __Pyx_GOTREF(__pyx_t_3); __Pyx_INCREF(__pyx_n_s_scale); __Pyx_GIVEREF(__pyx_n_s_scale); PyList_SET_ITEM(__pyx_t_3, 0, __pyx_n_s_scale); __Pyx_INCREF(__pyx_n_s_smoothscale); __Pyx_GIVEREF(__pyx_n_s_smoothscale); PyList_SET_ITEM(__pyx_t_3, 1, __pyx_n_s_smoothscale); __Pyx_INCREF(__pyx_n_s_rotate); __Pyx_GIVEREF(__pyx_n_s_rotate); PyList_SET_ITEM(__pyx_t_3, 2, __pyx_n_s_rotate); __Pyx_INCREF(__pyx_n_s_scale2x); __Pyx_GIVEREF(__pyx_n_s_scale2x); PyList_SET_ITEM(__pyx_t_3, 3, __pyx_n_s_scale2x); __pyx_t_1 = __Pyx_Import(__pyx_n_s_pygame_transform, __pyx_t_3, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 63, __pyx_L16_error) __Pyx_GOTREF(__pyx_t_1); __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0; __pyx_t_3 = __Pyx_ImportFrom(__pyx_t_1, __pyx_n_s_scale); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 63, __pyx_L16_error) __Pyx_GOTREF(__pyx_t_3); if (PyDict_SetItem(__pyx_d, __pyx_n_s_scale, __pyx_t_3) < 0) __PYX_ERR(0, 63, __pyx_L16_error) __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0; __pyx_t_3 = __Pyx_ImportFrom(__pyx_t_1, __pyx_n_s_smoothscale); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 63, __pyx_L16_error) __Pyx_GOTREF(__pyx_t_3); if (PyDict_SetItem(__pyx_d, __pyx_n_s_smoothscale, __pyx_t_3) < 0) __PYX_ERR(0, 63, __pyx_L16_error) __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0; __pyx_t_3 = __Pyx_ImportFrom(__pyx_t_1, __pyx_n_s_rotate); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 63, __pyx_L16_error) __Pyx_GOTREF(__pyx_t_3); if (PyDict_SetItem(__pyx_d, __pyx_n_s_rotate, __pyx_t_3) < 0) __PYX_ERR(0, 63, __pyx_L16_error) __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0; __pyx_t_3 = __Pyx_ImportFrom(__pyx_t_1, __pyx_n_s_scale2x); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 63, __pyx_L16_error) __Pyx_GOTREF(__pyx_t_3); if (PyDict_SetItem(__pyx_d, __pyx_n_s_scale2x, __pyx_t_3) < 0) __PYX_ERR(0, 63, __pyx_L16_error) __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0; __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+0064: from pygame.pixelcopy import array_to_surface
__pyx_t_1 = PyList_New(1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 64, __pyx_L16_error) __Pyx_GOTREF(__pyx_t_1); __Pyx_INCREF(__pyx_n_s_array_to_surface); __Pyx_GIVEREF(__pyx_n_s_array_to_surface); PyList_SET_ITEM(__pyx_t_1, 0, __pyx_n_s_array_to_surface); __pyx_t_3 = __Pyx_Import(__pyx_n_s_pygame_pixelcopy, __pyx_t_1, 0); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 64, __pyx_L16_error) __Pyx_GOTREF(__pyx_t_3); __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0; __pyx_t_1 = __Pyx_ImportFrom(__pyx_t_3, __pyx_n_s_array_to_surface); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 64, __pyx_L16_error) __Pyx_GOTREF(__pyx_t_1); if (PyDict_SetItem(__pyx_d, __pyx_n_s_array_to_surface, __pyx_t_1) < 0) __PYX_ERR(0, 64, __pyx_L16_error) __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0; __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
0065:
+0066: except ImportError:
__pyx_t_7 = __Pyx_PyErr_ExceptionMatches(__pyx_builtin_ImportError); if (__pyx_t_7) { __Pyx_AddTraceback("PygameShader.shader_gpu", __pyx_clineno, __pyx_lineno, __pyx_filename); if (__Pyx_GetException(&__pyx_t_3, &__pyx_t_1, &__pyx_t_2) < 0) __PYX_ERR(0, 66, __pyx_L18_except_error) __Pyx_GOTREF(__pyx_t_3); __Pyx_GOTREF(__pyx_t_1); __Pyx_GOTREF(__pyx_t_2);
+0067: raise ImportError("\n<Pygame> library is missing on your system."
__pyx_t_8 = __Pyx_PyObject_Call(__pyx_builtin_ImportError, __pyx_tuple__48, NULL); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 67, __pyx_L18_except_error) __Pyx_GOTREF(__pyx_t_8); __Pyx_Raise(__pyx_t_8, 0, 0, 0); __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0; __PYX_ERR(0, 67, __pyx_L18_except_error) } goto __pyx_L18_except_error; __pyx_L18_except_error:; /* … */ __pyx_tuple__48 = PyTuple_Pack(1, __pyx_kp_u_Pygame_library_is_missing_on_yo); if (unlikely(!__pyx_tuple__48)) __PYX_ERR(0, 67, __pyx_L1_error) __Pyx_GOTREF(__pyx_tuple__48); __Pyx_GIVEREF(__pyx_tuple__48);
0068: "\nTry: \n C:\\pip install pygame on a window command prompt.")
0069:
+0070: try:
{
/*try:*/ {
/* … */
}
}
0071: cimport cython
0072: from cython.parallel cimport prange
0073: from cpython cimport PyObject_CallFunctionObjArgs, PyObject, \
0074: PyList_SetSlice, PyObject_HasAttr, PyObject_IsInstance, \
0075: PyObject_CallMethod, PyObject_CallObject
0076: from cpython.dict cimport PyDict_DelItem, PyDict_Clear, PyDict_GetItem, PyDict_SetItem, \
0077: PyDict_Values, PyDict_Keys, PyDict_Items
0078: from cpython.list cimport PyList_Append, PyList_GetItem, PyList_Size, PyList_SetItem
0079: from cpython.object cimport PyObject_SetAttr
0080:
0081: except ImportError:
0082: raise ImportError("\n<cython> library is missing on your system."
0083: "\nTry: \n C:\\pip install cython on a window command prompt.")
0084:
+0085: try:
{
/*try:*/ {
/* … */
}
__Pyx_XDECREF(__pyx_t_4); __pyx_t_4 = 0;
__Pyx_XDECREF(__pyx_t_5); __pyx_t_5 = 0;
__Pyx_XDECREF(__pyx_t_6); __pyx_t_6 = 0;
goto __pyx_L35_try_end;
__pyx_L30_error:;
__Pyx_XDECREF(__pyx_t_1); __pyx_t_1 = 0;
__Pyx_XDECREF(__pyx_t_2); __pyx_t_2 = 0;
__Pyx_XDECREF(__pyx_t_3); __pyx_t_3 = 0;
__Pyx_XDECREF(__pyx_t_8); __pyx_t_8 = 0;
/* … */
__Pyx_XGIVEREF(__pyx_t_4);
__Pyx_XGIVEREF(__pyx_t_5);
__Pyx_XGIVEREF(__pyx_t_6);
__Pyx_ExceptionReset(__pyx_t_4, __pyx_t_5, __pyx_t_6);
goto __pyx_L1_error;
__pyx_L35_try_end:;
}
+0086: import cupy
__pyx_t_2 = __Pyx_Import(__pyx_n_s_cupy, 0, 0); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 86, __pyx_L30_error) __Pyx_GOTREF(__pyx_t_2); if (PyDict_SetItem(__pyx_d, __pyx_n_s_cupy, __pyx_t_2) < 0) __PYX_ERR(0, 86, __pyx_L30_error) __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+0087: import cupy as cp
__pyx_t_2 = __Pyx_Import(__pyx_n_s_cupy, 0, 0); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 87, __pyx_L30_error) __Pyx_GOTREF(__pyx_t_2); if (PyDict_SetItem(__pyx_d, __pyx_n_s_cp, __pyx_t_2) < 0) __PYX_ERR(0, 87, __pyx_L30_error) __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+0088: import cupyx.scipy.ndimage
__pyx_t_2 = __Pyx_Import(__pyx_n_s_cupyx_scipy_ndimage, 0, 0); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 88, __pyx_L30_error) __Pyx_GOTREF(__pyx_t_2); if (PyDict_SetItem(__pyx_d, __pyx_n_s_cupyx, __pyx_t_2) < 0) __PYX_ERR(0, 88, __pyx_L30_error) __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+0089: from cupyx.scipy import ndimage
__pyx_t_2 = PyList_New(1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 89, __pyx_L30_error) __Pyx_GOTREF(__pyx_t_2); __Pyx_INCREF(__pyx_n_s_ndimage); __Pyx_GIVEREF(__pyx_n_s_ndimage); PyList_SET_ITEM(__pyx_t_2, 0, __pyx_n_s_ndimage); __pyx_t_1 = __Pyx_Import(__pyx_n_s_cupyx_scipy, __pyx_t_2, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 89, __pyx_L30_error) __Pyx_GOTREF(__pyx_t_1); __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0; __pyx_t_2 = __Pyx_ImportFrom(__pyx_t_1, __pyx_n_s_ndimage); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 89, __pyx_L30_error) __Pyx_GOTREF(__pyx_t_2); if (PyDict_SetItem(__pyx_d, __pyx_n_s_ndimage, __pyx_t_2) < 0) __PYX_ERR(0, 89, __pyx_L30_error) __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0; __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+0090: except ImportError:
__pyx_t_7 = __Pyx_PyErr_ExceptionMatches(__pyx_builtin_ImportError); if (__pyx_t_7) { __Pyx_AddTraceback("PygameShader.shader_gpu", __pyx_clineno, __pyx_lineno, __pyx_filename); if (__Pyx_GetException(&__pyx_t_1, &__pyx_t_2, &__pyx_t_3) < 0) __PYX_ERR(0, 90, __pyx_L32_except_error) __Pyx_GOTREF(__pyx_t_1); __Pyx_GOTREF(__pyx_t_2); __Pyx_GOTREF(__pyx_t_3);
+0091: raise ImportError("\n<cupy> library is missing on your system."
__pyx_t_8 = __Pyx_PyObject_Call(__pyx_builtin_ImportError, __pyx_tuple__49, NULL); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 91, __pyx_L32_except_error) __Pyx_GOTREF(__pyx_t_8); __Pyx_Raise(__pyx_t_8, 0, 0, 0); __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0; __PYX_ERR(0, 91, __pyx_L32_except_error) } goto __pyx_L32_except_error; __pyx_L32_except_error:; /* … */ __pyx_tuple__49 = PyTuple_Pack(1, __pyx_kp_u_cupy_library_is_missing_on_your); if (unlikely(!__pyx_tuple__49)) __PYX_ERR(0, 91, __pyx_L1_error) __Pyx_GOTREF(__pyx_tuple__49); __Pyx_GIVEREF(__pyx_tuple__49);
0092: "\nTry: \n C:\\pip install cupy on a window command prompt.")
0093:
0094: from libc.stdlib cimport malloc, free
0095: from libc.math cimport sqrt, floor
0096:
0097:
0098: DEF ONE_255 = 1.0/255.0
0099:
+0100: CP_VERSION = cupy.__version__
__Pyx_GetModuleGlobalName(__pyx_t_3, __pyx_n_s_cupy); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 100, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_3); __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_t_3, __pyx_n_s_version); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 100, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_2); __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0; if (PyDict_SetItem(__pyx_d, __pyx_n_s_CP_VERSION, __pyx_t_2) < 0) __PYX_ERR(0, 100, __pyx_L1_error) __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+0101: GPU_DEVICE = cupy.cuda.Device()
__Pyx_GetModuleGlobalName(__pyx_t_2, __pyx_n_s_cupy); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 101, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_2); __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_cuda); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 101, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_3); __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0; __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_t_3, __pyx_n_s_Device); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 101, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_2); __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0; __pyx_t_3 = __Pyx_PyObject_CallNoArg(__pyx_t_2); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 101, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_3); __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0; if (PyDict_SetItem(__pyx_d, __pyx_n_s_GPU_DEVICE, __pyx_t_3) < 0) __PYX_ERR(0, 101, __pyx_L1_error) __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
0102:
0103: # https://docs.nvidia.com/cuda/cuda-c-programming-guide/index.html#compute-capabilities
0104: # Maximum number of resident grids per device (Concurrent Kernel Execution)
0105: COMPUTE_CAPABILITY = {
+0106: '35':32, '37':32, '50':32, '52':32, '53':16,
__pyx_t_3 = __Pyx_PyDict_NewPresized(14); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 106, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_3); if (PyDict_SetItem(__pyx_t_3, __pyx_kp_u_35, __pyx_int_32) < 0) __PYX_ERR(0, 106, __pyx_L1_error) if (PyDict_SetItem(__pyx_t_3, __pyx_kp_u_37, __pyx_int_32) < 0) __PYX_ERR(0, 106, __pyx_L1_error) if (PyDict_SetItem(__pyx_t_3, __pyx_kp_u_50, __pyx_int_32) < 0) __PYX_ERR(0, 106, __pyx_L1_error) if (PyDict_SetItem(__pyx_t_3, __pyx_kp_u_52, __pyx_int_32) < 0) __PYX_ERR(0, 106, __pyx_L1_error) if (PyDict_SetItem(__pyx_t_3, __pyx_kp_u_53, __pyx_int_16) < 0) __PYX_ERR(0, 106, __pyx_L1_error) if (PyDict_SetItem(__pyx_t_3, __pyx_kp_u_60, __pyx_int_128) < 0) __PYX_ERR(0, 106, __pyx_L1_error) if (PyDict_SetItem(__pyx_t_3, __pyx_kp_u_61, __pyx_int_32) < 0) __PYX_ERR(0, 106, __pyx_L1_error) if (PyDict_SetItem(__pyx_t_3, __pyx_kp_u_62, __pyx_int_16) < 0) __PYX_ERR(0, 106, __pyx_L1_error) if (PyDict_SetItem(__pyx_t_3, __pyx_kp_u_70, __pyx_int_128) < 0) __PYX_ERR(0, 106, __pyx_L1_error) if (PyDict_SetItem(__pyx_t_3, __pyx_kp_u_72, __pyx_int_16) < 0) __PYX_ERR(0, 106, __pyx_L1_error) if (PyDict_SetItem(__pyx_t_3, __pyx_kp_u_75, __pyx_int_128) < 0) __PYX_ERR(0, 106, __pyx_L1_error) if (PyDict_SetItem(__pyx_t_3, __pyx_kp_u_80, __pyx_int_128) < 0) __PYX_ERR(0, 106, __pyx_L1_error) if (PyDict_SetItem(__pyx_t_3, __pyx_kp_u_86, __pyx_int_128) < 0) __PYX_ERR(0, 106, __pyx_L1_error) if (PyDict_SetItem(__pyx_t_3, __pyx_kp_u_87, __pyx_int_128) < 0) __PYX_ERR(0, 106, __pyx_L1_error) if (PyDict_SetItem(__pyx_d, __pyx_n_s_COMPUTE_CAPABILITY, __pyx_t_3) < 0) __PYX_ERR(0, 105, __pyx_L1_error) __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
0107: '60':128, '61':32, '62':16, '70':128, '72':16,
0108: '75':128, '80':128, '86':128, '87':128
0109: }
0110:
0111: # free dedicated memory
0112: # The amount of free memory, in bytes. total: The total amount of memory, in bytes.
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0212:
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0214: @cython.wraparound(False)
0215: @cython.nonecheck(False)
0216: @cython.cdivision(True)
0217: @cython.profile(False)
+0218: cpdef object invert_gpu(surface_):
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0219: """
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0358: '''
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0402: SEPIA INPLACE
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0509: 'uint8 r, uint8 g, uint8 b, float32 threshold_',
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0511: '''
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0590:
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0592: r'''
0593: extern "C" __global__
0594:
0595: void bpf_kernel1(unsigned char * current, unsigned char * previous,
0596: const int w, const int h, const double threshold)
0597: {
0598: int i = blockIdx.x * blockDim.x + threadIdx.x;
0599: int j = blockIdx.y * blockDim.y + threadIdx.y;
0600:
0601: const int t_max = w * h;
0602: const int index = j * h + i;
0603: const int index1 = j * h * 3 + i * 3;
0604:
0605: __syncthreads();
0606:
0607: if (index > 0 && index < t_max){
0608:
0609: float r = (float)previous[index1 ];
0610: float g = (float)previous[index1 + 1];
0611: float b = (float)previous[index1 + 2];
0612:
0613: // ITU-R BT.601 luma coefficients
0614: float lum = r * 0.299f + g * 0.587f + b * 0.114f;
0615: if (lum > threshold) {
0616: float c = (float)((lum - threshold) / (lum +1));
0617: current[index1 ] = (unsigned char)(r * c);
0618: current[index1 + 1] = (unsigned char)(g * c);
0619: current[index1 + 2] = (unsigned char)(b * c);
0620: }
0621: else {
0622: current[index1 ] = (unsigned char)0;
0623: current[index1 + 1] = (unsigned char)0;
0624: current[index1 + 2] = (unsigned char)0;
0625: }
0626:
0627: __syncthreads();
0628:
0629: }
0630: }
0631: ''',
0632: 'bpf_kernel1'
0633: )
0634:
0635: @cython.boundscheck(False)
0636: @cython.wraparound(False)
0637: @cython.nonecheck(False)
0638: @cython.cdivision(True)
0639: @cython.profile(False)
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0856: object surface_,
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0861:
0862: Compatible with format 32 - 24 bit
0863: Create a median filter effect using the method generic_filter.
0864: The generic filter accept a kernel with buffer type double (low performance) e.g :
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0866: void median_kernel(double* buffer, int filter_size,
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1067:
1068:
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1070: '''
1071: extern "C" __global__
1072:
1073: __constant__ double gx[9] = {1.0, 2.0, 1.0, 0.0, 0.0, 0.0, -1.0, -2.0, -1.0};
1074: __constant__ double gy[9] = {1.0, 0.0, -1.0, 2.0, 0.0, -2.0, 1.0, 0.0, -1.0};
1075:
1076: void sobel_kernel(double* buffer, int filter_size,
1077: double* return_value)
1078: {
1079: double s_x=0;
1080: double s_y=0;
1081: double magnitude=0;
1082: const double threshold = 15.0;
1083:
1084: for (int i=0; i<filter_size; ++i){
1085: s_x += buffer[i] * gx[i];
1086: s_y += buffer[i] * gy[i];
1087: }
1088:
1089: magnitude = sqrt(s_x * s_x + s_y * s_y);
1090:
1091: if (magnitude > 255.0f) {
1092: magnitude = 255.0f;
1093: }
1094: if (magnitude > threshold){
1095: return_value[0] = magnitude;
1096: } else {
1097: return_value[0] = (double)0.0;
1098: }
1099:
1100:
1101: }
1102: ''',
1103: 'sobel_kernel'
1104: )
1105:
1106:
1107:
1108:
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1110: '''extern "C"
1111:
1112: __constant__ double gx[9] = {1.0, 0.0, -1.0, 1.0, 0.0, -1.0, 1.0, 0.0, -1.0};
1113: __constant__ double gy[9] = {1.0, 1.0, 1.0, 0.0, 0.0, 0.0, -1.0, -1.0, -1.0};
1114:
1115: __global__ void prewitt_kernel(double* buffer, int filter_size,
1116: double* return_value)
1117: {
1118: double s_x=0;
1119: double s_y=0;
1120: double magnitude=0;
1121: const double threshold = 12.0;
1122:
1123: for (int i=0; i<filter_size; ++i){
1124: s_x += buffer[i] * gx[i];
1125: s_y += buffer[i] * gy[i];
1126: }
1127:
1128: magnitude = sqrt(s_x * s_x + s_y * s_y);
1129:
1130: if (magnitude > 255.0f) {
1131: magnitude = 255.0f;
1132: }
1133: if (magnitude > threshold){
1134: return_value[0] = magnitude;
1135: } else {
1136: return_value[0] = (double)0.0;
1137: }
1138:
1139:
1140: }
1141: ''',
1142: 'prewitt_kernel'
1143: )
1144:
1145:
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1148: '''
1149:
1150: extern "C"
1151:
1152: __constant__ double kernel[5][5] =
1153: {{2.0, 4.0, 5.0, 4.0, 2.0},
1154: {4.0, 9.0, 12.0, 9.0, 4.0},
1155: {5.0, 12.0, 15.0, 12.0, 5.0},
1156: {4.0, 9.0, 12.0, 9.0, 4.0},
1157: {2.0, 4.0, 5.0, 4.0, 2.0}};
1158:
1159: __global__ void canny_smooth(double* buffer, int filter_size,
1160: double* return_value)
1161: {
1162: double color=0;
1163:
1164:
1165: for (int i=0; i<filter_size; ++i){
1166: for (int kx = 0; kx < 4; ++kx){
1167: for (int ky = 0; ky < 4; ++ky){
1168: color += buffer[i] * kernel[kx][ky]/159.0;
1169:
1170: }
1171: }
1172: }
1173: color /= 25.0;
1174: if (color > 255.0f) {color = 255.0f;}
1175: else if (color < 0.0f) {color = 0.0;}
1176:
1177: return_value[0] = color;
1178: }
1179: ''',
1180: 'canny_smooth'
1181: )
1182:
1183:
1184: @cython.boundscheck(False)
1185: @cython.wraparound(False)
1186: @cython.nonecheck(False)
1187: @cython.cdivision(True)
1188: @cython.profile(False)
+1189: cpdef object sobel_gpu(object surface_):
static PyObject *__pyx_pw_12PygameShader_10shader_gpu_43sobel_gpu(PyObject *__pyx_self, PyObject *__pyx_v_surface_); /*proto*/
static PyObject *__pyx_f_12PygameShader_10shader_gpu_sobel_gpu(PyObject *__pyx_v_surface_, CYTHON_UNUSED int __pyx_skip_dispatch) {
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static char __pyx_doc_12PygameShader_10shader_gpu_42sobel_gpu[] = "\n SOBEL EDGE DETECTION \n \n Compatible with format 32 - 24 bit\n The image must be grayscale before creating the gpu_array_\n This algorithm used the red channel only to generate the sobel effect, as \n the image is grayscale we could also used the green or blue channel to \n create the effect. \n If the image is not grayscale, the result might be slightly different from \n the grayscale model as RGB channels can have different intensity. \n\n \n :param surface_ : pygame.Surface\n :return : Return a pygame.Surface with the sobel effect\n ";
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1190: """
1191: SOBEL EDGE DETECTION
1192:
1193: Compatible with format 32 - 24 bit
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1200:
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1330:
1331: Compatible with format 32 - 24 bit
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1334: the image is grayscale we could also used the green or blue channel to
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1338:
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1362:
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1504:
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+1506: rgb2hsv_cuda = r'''
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1507: extern "C"
1508:
1509: __global__ void rgb2hsv(float * r, float * g, float * b, int width, int height, double val_)
1510: {
1511:
1512: int xx = blockIdx.x * blockDim.x + threadIdx.x;
1513: int yy = blockIdx.y * blockDim.y + threadIdx.y;
1514:
1515: // Index value of the current pixel
1516: const int index = yy * height + xx;
1517: const int t_max = height * width;
1518:
1519: if (index> 0 && index < t_max){
1520:
1521: float h, s, v;
1522: int i=-1;
1523: float f, p, q, t;
1524: float mx, mn;
1525:
1526: // Create a reference to RGB
1527: float rr = r[index];
1528: float gg = g[index];
1529: float bb = b[index];
1530:
1531: // Find max and min of RGB values
1532: if (rr > gg){
1533: if (rr > bb){
1534: mx = rr;
1535: if (bb > gg){ mn = gg;}
1536: else mn = bb;
1537: }
1538: else{
1539: mx = bb;
1540: if (bb > gg){ mn = gg;}
1541: else mn = bb;
1542: }
1543: }
1544: else{
1545: if (gg > bb){
1546: mx = gg;
1547: if (bb > rr){ mn = rr;}
1548: else mn = bb;
1549: }
1550: else{
1551: mx = bb;
1552: if (bb > rr) { mn = rr;}
1553: else mn = bb;
1554: }
1555: }
1556:
1557:
1558: __syncthreads();
1559:
1560: // Convert RGB to HSV
1561: float df = mx-mn;
1562: float df_ = 1.0f/df;
1563:
1564: if (mx == mn)
1565: { h = 0.0;}
1566:
1567: else if (mx == rr){
1568: h = (float)fmod(60.0f * ((gg-bb) * df_) + 360.0, 360);
1569: }
1570: else if (mx == gg){
1571: h = (float)fmod(60.0f * ((bb-rr) * df_) + 120.0, 360);
1572: }
1573: else if (mx == bb){
1574: h = (float)fmod(60.0f * ((rr-gg) * df_) + 240.0, 360);
1575: }
1576:
1577: if (mx == 0.0){
1578: s = 0.0;
1579: }
1580: else{
1581: s = df/mx;
1582: }
1583:
1584: v = mx;
1585: h = h * 1.0f/360.0f;
1586:
1587: // Increment the hue
1588: h = (float)fmod(h + val_, (double)1.0);
1589:
1590: __syncthreads();
1591:
1592: // Convert HSV to RGB
1593: if (s == 0.0){
1594: r[index] = v;
1595: g[index] = v;
1596: b[index] = v;
1597: }
1598: else {
1599: i = (int)(h*6.0f);
1600: f = (h*6.0f) - i;
1601: p = v*(1.0f - s);
1602: q = v*(1.0f - s*f);
1603: t = v*(1.0f - s*(1.0f-f));
1604: i = i%6;
1605:
1606: switch(i) {
1607: case 0:
1608: r[index] = v;
1609: g[index] = t;
1610: b[index] = p;
1611: break;
1612: case 1:
1613: r[index] = q;
1614: g[index] = v;
1615: b[index] = p;
1616: break;
1617: case 2:
1618: r[index] = p;
1619: g[index] = v;
1620: b[index] = t;
1621: break;
1622: case 3:
1623: r[index] = p;
1624: g[index] = q;
1625: b[index] = v;
1626: break;
1627: case 4:
1628: r[index] = t;
1629: g[index] = p;
1630: b[index] = v;
1631: break;
1632: case 5:
1633: r[index] = v;
1634: g[index] = p;
1635: b[index] = q;
1636: break;
1637: default:
1638: ;
1639:
1640: }
1641: }
1642:
1643: }
1644:
1645: __syncthreads();
1646:
1647:
1648: }
1649: '''
1650:
1651: @cython.boundscheck(False)
1652: @cython.wraparound(False)
1653: @cython.nonecheck(False)
1654: @cython.cdivision(True)
1655: @cython.profile(False)
+1656: cpdef object hsv_gpu(
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1661: ):
1662: """
1663: HSV (HUE ROTATION)
1664:
1665: Compatible with image format 32 - 24 bit
1666: Rotate the pixels color of an image/texture
1667:
1668: :param surface_ : pygame.surface
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1741: r'''
1742:
1743:
1744: extern "C"
1745: __global__ void downscale_kernel(unsigned char* source, unsigned char * new_array,
1746: const double w1, const double h1, const double w2, const double h2)
1747: {
1748:
1749: int xx = blockIdx.x * blockDim.x + threadIdx.x;
1750: int yy = blockIdx.y * blockDim.y + threadIdx.y;
1751: int zz = blockIdx.z * blockDim.z + threadIdx.z;
1752:
1753: const int index = yy * h1 * 3 + xx * 3 + zz;
1754: const int index1 = (int)(yy * h1 * h2/h1 * 3 + xx * w2/w1 * 3 + zz);
1755: const int t_max = h1 * w1 * 3;
1756: const int t_max_ = h2 * w2 * 3;
1757:
1758: if (index>= 0 && index <= t_max){
1759:
1760: __syncthreads();
1761:
1762: const float fx = (float)(w2 / w1);
1763: const float fy = (float)(h2 / h1);
1764:
1765:
1766: __syncthreads();
1767:
1768:
1769: float ix = (float)index / 3.0f;
1770: int y = (int)(ix / h1);
1771: int x = (int)ix % (int)h1;
1772:
1773: int new_x = (int)(x * fx);
1774: int new_y = (int)(y * fy);
1775:
1776: const int new_index = (int)(new_y * 3 * h2) + new_x * 3 + zz;
1777:
1778: __syncthreads();
1779:
1780: new_array[index1] = source[index];
1781:
1782: __syncthreads();
1783: }
1784: }
1785: ''',
1786: 'downscale_kernel'
1787: )
1788:
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1790: @cython.wraparound(False)
1791: @cython.nonecheck(False)
1792: @cython.cdivision(True)
1793: @cython.profile(False)
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1795: object gpu_array
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1799: BLOOM DOWNSCALE SUB-METHOD
1800:
1801: compatible with image format 32 - 24 bit
1802: Downscale an array into 4 sub-arrays with shapes (div 2, div 4, div 8, div 16)
1803:
1804: :param gpu_array: cupy array type (w, h, 3) uint8
1805: :return : Returns 4 sub-arrays with shapes (div 2, div 4, div 8, div 16)
1806: """
1807:
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1824: downscale_x4,\
1825: downscale_x8, \
1826: downscale_x16
1827:
1828: #
1829: # @cython.boundscheck(False)
1830: # @cython.wraparound(False)
1831: # @cython.nonecheck(False)
1832: # @cython.cdivision(True)
1833: # cpdef object zoom_in_gpu(object surface_, int w, int h):
1834: #
1835: # if not PyObject_IsInstance(surface_, pygame.Surface):
1836: # raise TypeError('Argument surface_ must be a pygame Surface type got %s' % type(surface_))
1837: #
1838: # assert w > 0, "Argument w cannot be < 0"
1839: # assert h > 0, "Argument h cannot be < 0"
1840: #
1841: # try:
1842: # gpu_array_ = cp.asarray(pixels3d(surface_), dtype=cp.uint8)
1843: #
1844: # except Exception as e:
1845: # raise ValueError(
1846: # "\nCannot reference source pixels into a 3d array.\n %s " % e)
1847: #
1848: # cdef int w0, h0
1849: # w0, h0 = gpu_array_.shape[0], gpu_array_.shape[1]
1850: #
1851: # downscale_ = cupyx.scipy.ndimage.zoom(
1852: # gpu_array_, (<float>w0/<float>w, <float>h0/<float>h, 1), order=0, mode='constant', cval=0.0)
1853: #
1854: # cp.cuda.Stream.null.synchronize()
1855: #
1856: # return frombuffer(downscale_.astype(
1857: # dtype=cp.uint8).transpose(1, 0, 2).tobytes(),
1858: # (downscale_.shape[0], downscale_.shape[1]), "RGB")
1859: #
1860: #
1861: # @cython.boundscheck(False)
1862: # @cython.wraparound(False)
1863: # @cython.nonecheck(False)
1864: # @cython.cdivision(True)
1865: # cpdef object upscale_gpu(object surface_, int w, int h):
1866: #
1867: # if not PyObject_IsInstance(surface_, pygame.Surface):
1868: # raise TypeError('Argument surface_ must be a pygame Surface type got %s' % type(surface_))
1869: #
1870: # assert w > 0, "Argument w cannot be < 0"
1871: # assert h > 0, "Argument h cannot be < 0"
1872: #
1873: # try:
1874: # gpu_array_ = cp.asarray(pixels3d(surface_), dtype=cp.uint8)
1875: #
1876: # except Exception as e:
1877: # raise ValueError(
1878: # "\nCannot reference source pixels into a 3d array.\n %s " % e)
1879: #
1880: # cdef int w0, h0
1881: # w0, h0 = gpu_array_.shape[0], gpu_array_.shape[1]
1882: #
1883: # gpu_array = cp.asarray(gpu_array_, dtype=cp.uint8)
1884: #
1885: # upscale_array = cupyx.scipy.ndimage.zoom(
1886: # gpu_array, (<float>w/<float>w0, <float>h/<float>h0, 1), order=0, mode='constant', cval=0.0)
1887: #
1888: # cp.cuda.Stream.null.synchronize()
1889: #
1890: # return frombuffer(gpu_array_.astype(dtype=cp.uint8).transpose(1, 0, 2).tobytes(), (w, h), "RGB")
1891:
1892:
1893:
1894:
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1896: r'''
1897: extern "C" __global__
1898: void upscale_x2(unsigned char* source, unsigned char * new_array,
1899: const double w1, const double h1, const double w2, const double h2)
1900: {
1901: int xx = blockIdx.x * blockDim.x + threadIdx.x;
1902: int yy = blockIdx.y * blockDim.y + threadIdx.y;
1903: int zz = blockIdx.z * blockDim.z + threadIdx.z;
1904:
1905: __syncthreads();
1906:
1907: const float fx = (float)(w1 / w2);
1908: const float fy = (float)(h1 / h2);
1909:
1910: const int index = yy * h2 * 3 + xx * 3 + zz ;
1911:
1912: const unsigned int ix = (int)(index / 3.0f);
1913: const int y = (int)(ix/h2);
1914: const int x = ix % (int)h2;
1915:
1916: const int new_x = (int)(x * fx);
1917: const int new_y = (int)(y * fy);
1918:
1919: int new_index = (int)((int)(new_y * h1 *3) + (int)(new_x * 3) + zz);
1920: __syncthreads();
1921:
1922: new_array[index] = source[new_index];
1923:
1924: __syncthreads();
1925:
1926: }
1927: ''',
1928: 'upscale_x2'
1929: )
1930:
1931:
1932: # ************************************ BLOOM ***************************************
1933:
1934: # BRIGHT PASS FILTER FOR BLOOM EFFECT
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1936:
1937: cdef:
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goto __pyx_L27_bool_binop_done;
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goto __pyx_L26;
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2150:
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2154: # surface_.blit(s2, (0, 0), special_flags=flag_)
2155:
2156:
2157: # SECOND SUBSURFACE DOWNSCALE x4
2158: # THIS IS THE SECOND MOST EXPENSIVE IN TERM OF PROCESSING TIME
+2159: if x4:
__pyx_t_21 = (__pyx_v_x4 != 0);
if (__pyx_t_21) {
/* … */
}
+2160: bpf_c(scale_x4, w4, h4, threshold_=threshold_)
__pyx_t_23.__pyx_n = 1;
__pyx_t_23.threshold_ = __pyx_v_threshold_;
__pyx_f_12PygameShader_10shader_gpu_bpf_c(__pyx_v_scale_x4, __pyx_v_w4, __pyx_v_h4, &__pyx_t_23);
+2161: gaussian_3x3_c(scale_x4, w4, h4)
__pyx_t_3 = __pyx_f_12PygameShader_10shader_gpu_gaussian_3x3_c(__pyx_v_scale_x4, __pyx_v_w4, __pyx_v_h4); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 2161, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_3); __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+2162: s4 = make_surface(upscale_c(scale_x4, w1, h1, order_=0).get())
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2163: # surface_.blit(s4, (0, 0), special_flags=flag_)
2164:
2165: # THIRD SUBSURFACE DOWNSCALE x8
+2166: if x8:
__pyx_t_21 = (__pyx_v_x8 != 0);
if (__pyx_t_21) {
/* … */
}
2167:
+2168: bpf_c(scale_x8, w8, h8, threshold_=threshold_)
__pyx_t_23.__pyx_n = 1;
__pyx_t_23.threshold_ = __pyx_v_threshold_;
__pyx_f_12PygameShader_10shader_gpu_bpf_c(__pyx_v_scale_x8, __pyx_v_w8, __pyx_v_h8, &__pyx_t_23);
+2169: gaussian_3x3_c(scale_x8, w8, h8)
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2171: # surface_.blit(s8, (0, 0), special_flags=flag_)
2172:
2173: # FOURTH SUBSURFACE DOWNSCALE x16
2174: # LEAST SIGNIFICANT IN TERMS OF RENDERING AND PROCESSING TIME
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__pyx_t_21 = (__pyx_v_x16 != 0);
if (__pyx_t_21) {
/* … */
}
2176:
+2177: bpf_c(scale_x16, w16, h16, threshold_=threshold_)
__pyx_t_23.__pyx_n = 1;
__pyx_t_23.threshold_ = __pyx_v_threshold_;
__pyx_f_12PygameShader_10shader_gpu_bpf_c(__pyx_v_scale_x16, __pyx_v_w16, __pyx_v_h16, &__pyx_t_23);
+2178: gaussian_3x3_c(scale_x16, w16, h16)
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2180: # surface_.blit(s16, (0, 0), special_flags=flag_)
2181:
2182:
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__pyx_t_21 = (__pyx_v_fast_ != 0);
if (__pyx_t_21) {
/* … */
goto __pyx_L43;
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2186:
2187: else:
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__Pyx_GOTREF(__pyx_t_5);
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goto __pyx_L6;
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goto __pyx_L9;
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goto __pyx_L12;
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/* … */
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2277:
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/* … */
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__pyx_t_13.threshold_ = __pyx_v_threshold_;
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2298:
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__pyx_t_11 = (__pyx_v_x8 != 0);
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/* … */
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+2302: bpf_c(scale_x8, w8, h8, threshold_=threshold_)
__pyx_t_13.__pyx_n = 1;
__pyx_t_13.threshold_ = __pyx_v_threshold_;
__pyx_f_12PygameShader_10shader_gpu_bpf_c(__pyx_v_scale_x8, __pyx_v_w8, __pyx_v_h8, &__pyx_t_13);
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2305:
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/* … */
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__pyx_t_13.threshold_ = __pyx_v_threshold_;
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2315:
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2341: CREATE A CARTOON EFFECT FROM A GIVEN SURFACE
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2449: BLEND_RGB_MULT, BLEND_RGB_MAX, BLEND_RGB_MIN
2450: :return : Return a pygame Surface with the cartoon effect
2451: """
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2463:
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2522: """
2523: BLEND A SOURCE TEXTURE TOWARD A DESTINATION TEXTURE (TRANSITION EFFECT)
2524:
2525: * Video system must be initialised
2526: * source_ & destination_ Textures must be same sizes
2527: * Compatible with 24 - 32 bit surface
2528: * Output create a new surface
2529: * Image returned is converted for fast blit (convert())
2530:
2531: # ***********************************
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2533: # outA = SrcA + DstA(1 - SrcA)
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2535: # ***********************************
2536:
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2560:
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2587: '''
2588: extern "C"
2589:
2590: __constant__ double kernel[9] = {0, -1, 0,-1, 5, -1, 0, -1, 0};
2591:
2592: __global__ void sharpen_kernel(double* buffer, int filter_size,
2593: double* return_value)
2594: {
2595: double color=0;
2596:
2597: for (int i=0; i<filter_size; ++i){
2598: color += buffer[i] * kernel[i];
2599:
2600: }
2601:
2602: if (color > 255.0f) {color = 255.0f;}
2603: else if (color < 0.0f) {color = 0.0;}
2604:
2605: return_value[0] = color;
2606:
2607: }
2608: ''',
2609: 'sharpen_kernel'
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2614: @cython.wraparound(False)
2615: @cython.nonecheck(False)
2616: @cython.cdivision(True)
2617: @cython.profile(False)
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/* … */
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2666:
2667:
2668:
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2670: r'''
2671: extern "C" __global__
2672: void ripple_kernel(float * current, float * previous,
2673: unsigned char * background_array, unsigned char * texture_array,
2674: const int w, const int h)
2675: {
2676: int i = blockIdx.x * blockDim.x + threadIdx.x;
2677: int j = blockIdx.y * blockDim.y + threadIdx.y;
2678:
2679: // index for array shape (w, h)
2680: const int index = j * h + i;
2681:
2682: // index for array shape (w, h, 3) e.g texture & background
2683: const int index1 = j * h * 3 + i * 3;
2684:
2685: // Maximum index value for array shape (w, h)
2686: const int t_max = w * h;
2687:
2688: // Maximum index value for array shape (w, h, 3
2689: const int t_max_ = w * h * 3;
2690:
2691: __syncthreads();
2692:
2693: float left = 0.0f;
2694: float right = 0.0f;
2695: float top = 0.0f;
2696: float bottom = 0.0f;
2697: float data = 0.0f;
2698:
2699: // Limit the loop to the valid indexes
2700: if (index> 0 && index < t_max){
2701:
2702: /*
2703: float data = (previous[max((index + 1) % t_max, 0)] + // left
2704: previous[max((index - 1) % t_max, 0)] + // right
2705: previous[max((index - h) % t_max, 0)] + // top
2706: previous[max((index + h) % t_max, 0)]) * (float)0.5; // bottom
2707: */
2708:
2709:
2710:
2711: if ((index - h) < 0) {
2712: top = 0.0f;
2713: }
2714: else {
2715: top = previous[index - h];
2716: }
2717:
2718: if ((index + h) > t_max) {
2719: bottom = 0.0f;
2720: }
2721: else {
2722: bottom = previous[index + h];
2723: }
2724:
2725:
2726: if ((index - 1) < 0) {
2727: right = 0.0f;
2728: }
2729: else {
2730: right = previous[index - 1];
2731: }
2732:
2733: if ((index + 1) > t_max) {
2734: left = 0.0f;
2735: }
2736: else {
2737: left = previous[index + 1];
2738: }
2739:
2740:
2741: data = (left + right + top + bottom) * 0.5f;
2742:
2743:
2744:
2745: data = data - current[index];
2746: data = data - (data * 0.01125f); // Attenuation
2747:
2748: __syncthreads();
2749:
2750: current[index] = data;
2751:
2752:
2753: data = 1.0f - data * 1.0f/1024.0f;
2754: const int w2 = w >> 1;
2755: const int h2 = h >> 1;
2756: const int a = max((int)(((i - w2) * data) + w2) % h, 0); // texture index (x)
2757: const int b = max((int)(((j - h2) * data) + h2) % w, 0); // texture index (y)
2758: // int ind = a * h * 3 + b * 3; // inverse texture
2759: const int ind = b * h * 3 + a * 3;
2760: background_array[index1 ] = texture_array[ind ]; // red
2761: background_array[(index1 + 1) ] = texture_array[(ind + 1) ]; // green
2762: background_array[(index1 + 2) ] = texture_array[(ind + 2) ]; // blue
2763:
2764: __syncthreads();
2765: }
2766: }
2767: ''',
2768: 'ripple_kernel'
2769: )
2770:
2771:
2772: @cython.boundscheck(False)
2773: @cython.wraparound(False)
2774: @cython.nonecheck(False)
2775: @cython.cdivision(True)
2776: @cython.profile(False)
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2778: object grid,
2779: object block,
2780: int w, int h,
2781: previous, # type cupy.float32 (w, h)
2782: current, # type cupy.float32 (w, h)
2783: texture_array, # type cupy.ndarray (w, h, 3) uint8
2784: background_array # type cupy.ndarray (w, h, 3) uint8
2785: ):
2786: """
2787: WATER DROP / RIPPLE EFFECT (USING GPU)
2788:
2789: Compatible with 24-bit or 32-bit textures (converted to 24 bit with pygame.convert())
2790: This method call cuda kernel ripple_kernel to do the math with the GPU
2791: This version is compatible with textures & array with identical width and height
2792:
2793: :param grid : tuple; grid values (grid_y, grid_x) e.g (25, 25). The grid values and block values must
2794: match the texture and array sizes.
2795: :param block : tuple; block values (block_y, block_x) e.g (32, 32). Maximum threads is 1024.
2796: Max threads = block_x * block_y
2797: :param w : integer; Width of the textures and arrays
2798: :param h : integer; height of the textures and arrays
2799: :param previous : cupy.array; Array shape (w, h) float32 containing the water
2800: ripple effect (previous status)
2801: :param current : cupy.array; Array shape (w, h) float32 containing the water ripple
2802: effect (current status)
2803: :param texture_array : cupy.array; Array shape (w, h, 3) of uint8 containing the RGB pixels (source)
2804: :param background_array : cupy.array; Array shape (w, h, 3) of uint8 (destination texture)
2805: :return : tuple; Return two cupy arrays (previous & current)
2806: """
2807:
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2814:
2815:
2816:
2817: # Sharpen kernel (different method)
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2819: r'''
2820: extern "C" __global__
2821: void sharpen1_kernel(float * current, float * previous,
2822: const int w, const int h)
2823: {
2824: int i = blockIdx.x * blockDim.x + threadIdx.x;
2825: int j = blockIdx.y * blockDim.y + threadIdx.y;
2826:
2827: const int col = h * 3;
2828:
2829: // index for array shape (w, h)
2830: const int index = j * h + i;
2831:
2832: // index for array shape (w, h, 3) e.g texture & background
2833: const int index1 = j * col + i * 3;
2834:
2835: // Maximum index value for array shape (w, h)
2836: const int t_max = w * h;
2837:
2838: // Maximum index value for array shape (w, h, 3
2839: const int t_max_ = w * col;
2840:
2841:
2842: __syncthreads();
2843:
2844: float red = 0;
2845: float green = 0;
2846: float blue = 0;
2847:
2848: // Limit the loop to the valid indexes
2849: if (index > 0 && index < t_max){
2850:
2851: if ((index1 - col> 0) && (index1 + col < t_max_)) {
2852:
2853: red =
2854: -previous[index1 - col ] +
2855: -previous[index1 - 3 ] +
2856: previous[index1 ] * 5.0f +
2857: -previous[index1 + 3 ] +
2858: -previous[index1 + col ];
2859:
2860: green =
2861: -previous[index1 - col + 1 ] +
2862: -previous[index1 - 2 ] +
2863: previous[index1 + 1 ] * 5.0f +
2864: -previous[index1 + 4 ] +
2865: -previous[index1 + col + 1 ];
2866:
2867: blue =
2868: -previous[index1 - col + 2 ] +
2869: -previous[index1 - 1 ] +
2870: previous[index1 + 2 ] * 5.0f +
2871: -previous[index1 + 5 ] +
2872: -previous[index1 + col + 2 ];
2873: }
2874:
2875: __syncthreads();
2876:
2877: if (red > 255) { red = 255; }
2878: if (red < 0) { red = 0; }
2879:
2880: if (green > 255) { green = 255; }
2881: if (green < 0) { green = 0; }
2882:
2883: if (blue > 255) { blue = 255; }
2884: if (blue < 0) { blue = 0; }
2885:
2886: current[ index1 ] = red;
2887: current[ index1 + 1 ] = green;
2888: current[ index1 + 2 ] = blue;
2889:
2890:
2891: __syncthreads();
2892:
2893: }
2894: }
2895: ''',
2896: 'sharpen1_kernel'
2897: )
2898:
2899:
2900: @cython.boundscheck(False)
2901: @cython.wraparound(False)
2902: @cython.nonecheck(False)
2903: @cython.cdivision(True)
2904: @cython.profile(False)
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2906: """
2907: SHARPEN AN IMAGE (RAWKERNEL)
2908:
2909: Different method, use a raw kernel to sharp the image
2910: The borders are not compute with the kernel (value =0)
2911:
2912: :param surface_ : pygame.Surface
2913: :param grid_ : tuple; grid values (grid_y, grid_x) e.g (25, 25). The grid values and block values must
2914: match the texture and array sizes.
2915: :param block_ : tuple; block values (block_y, block_x) e.g (32, 32). Maximum threads is 1024.
2916: Max threads = block_x * block_y
2917: :return : pygame.Surface
2918: """
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goto __pyx_L1_error;
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}
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2985:
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2988:
2989: cdef:
2990: Py_ssize_t w, h
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2992:
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if (!__pyx_t_21) {
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goto __pyx_L21_bool_binop_done;
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/* … */
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+2994: raise ValueError("Surface width and height cannot be null!")
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2995:
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2998:
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3000:
3001:
+3002: mirror_kernel = cp.RawKernel(
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3003: r'''
3004: extern "C" __global__
3005: void mirror_kernel(float * current, float * previous,
3006: const int w, const int h, bool format)
3007: {
3008: int i = blockIdx.x * blockDim.x + threadIdx.x;
3009: int j = blockIdx.y * blockDim.y + threadIdx.y;
3010:
3011: const int col = h * 3;
3012:
3013: // index for array shape (w, h)
3014: const int index = j * h + i;
3015:
3016: // index for array shape (w, h, 3) e.g texture & background
3017: const int index1 = j * col + i * 3;
3018:
3019: // Maximum index value for array shape (w, h)
3020: const int t_max = w * h;
3021:
3022: // Maximum index value for array shape (w, h, 3)
3023: const int t_max_ = w * col;
3024:
3025: __syncthreads();
3026:
3027: float red = 0;
3028: float green = 0;
3029: float blue = 0;
3030: int x2, x3;
3031:
3032: // Limit the loop to the valid indexes
3033: if (index > 0 && index < t_max){
3034:
3035: red = previous[index1 ];
3036: green = previous[index1 + 1];
3037: blue = previous[index1 + 2];
3038:
3039: __syncthreads();
3040:
3041: if (format == 1){
3042:
3043: x2 = i >> 1;
3044:
3045: current[j * col + x2 * 3 ] = red;
3046: current[j * col + x2 * 3 + 1] = green;
3047: current[j * col + x2 * 3 + 2] = blue;
3048: __syncthreads();
3049:
3050: x3 = h - x2 - 1;
3051:
3052: current[j * col + x3 * 3 ] = red;
3053: current[j * col + x3 * 3 + 1] = green;
3054: current[j * col + x3 * 3 + 2] = blue;
3055: }
3056: else{
3057:
3058: x2 = j >> 1;
3059:
3060: current[x2 * h * 3 + i * 3 ] = red;
3061: current[x2 * h * 3 + i * 3 + 1] = green;
3062: current[x2 * h * 3 + i * 3 + 2] = blue;
3063:
3064: __syncthreads();
3065:
3066: x3 = w - x2 - 1;
3067:
3068: current[x3 * h * 3 + i * 3 ] = red;
3069: current[x3 * h * 3 + i * 3 + 1] = green;
3070: current[x3 * h * 3 + i * 3 + 2] = blue;
3071: }
3072:
3073: __syncthreads();
3074:
3075: }
3076: }
3077: ''',
3078: 'mirror_kernel'
3079: )
3080:
3081:
3082: @cython.boundscheck(False)
3083: @cython.wraparound(False)
3084: @cython.nonecheck(False)
3085: @cython.cdivision(True)
3086: @cython.profile(False)
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3091:
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+3147: raise ValueError("\nCannot reference source pixels into a 3d array.\n %s " % e)
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3148:
3149: cdef:
3150: Py_ssize_t w, h
+3151: w, h = cpu_array_.shape[0], cpu_array_.shape[1]
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3152:
+3153: if w == 0 or h == 0:
__pyx_t_21 = ((__pyx_v_w == 0) != 0);
if (!__pyx_t_21) {
} else {
__pyx_t_3 = __pyx_t_21;
goto __pyx_L21_bool_binop_done;
}
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__pyx_t_3 = __pyx_t_21;
__pyx_L21_bool_binop_done:;
if (unlikely(__pyx_t_3)) {
/* … */
}
+3154: raise ValueError("Surface width and height cannot be null!")
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3155:
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__pyx_t_3 = (-1.0 < __pyx_v_val_);
if (__pyx_t_3) {
__pyx_t_3 = (__pyx_v_val_ < 1.0);
}
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if (unlikely(__pyx_t_21)) {
/* … */
}
+3157: raise ValueError("\nArgument val_ must be in range [-1.0 ... 1.0]")
__pyx_t_7 = __Pyx_PyObject_Call(__pyx_builtin_ValueError, __pyx_tuple__15, NULL); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 3157, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_7); __Pyx_Raise(__pyx_t_7, 0, 0, 0); __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0; __PYX_ERR(0, 3157, __pyx_L1_error) /* … */ __pyx_tuple__15 = PyTuple_Pack(1, __pyx_kp_u_Argument_val__must_be_in_range_2); if (unlikely(!__pyx_tuple__15)) __PYX_ERR(0, 3157, __pyx_L1_error) __Pyx_GOTREF(__pyx_tuple__15); __Pyx_GIVEREF(__pyx_tuple__15);
3158:
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+3160: raise ValueError("\nArgument grid_, block_ must be tuples (y, x)")
__pyx_t_7 = __Pyx_PyObject_Call(__pyx_builtin_ValueError, __pyx_tuple__13, NULL); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 3160, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_7); __Pyx_Raise(__pyx_t_7, 0, 0, 0); __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0; __PYX_ERR(0, 3160, __pyx_L1_error)
3161:
+3162: return saturation_cupy(cp.asarray(cpu_array_), grid_, block_, val_)
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3163:
3164:
+3165: saturation_kernel = cp.RawKernel(
__Pyx_GetModuleGlobalName(__pyx_t_8, __pyx_n_s_cp); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 3165, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_8); __pyx_t_12 = __Pyx_PyObject_GetAttrStr(__pyx_t_8, __pyx_n_s_RawKernel); if (unlikely(!__pyx_t_12)) __PYX_ERR(0, 3165, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_12); __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0; __pyx_t_8 = __Pyx_PyObject_Call(__pyx_t_12, __pyx_tuple__70, NULL); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 3165, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_8); __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0; if (PyDict_SetItem(__pyx_d, __pyx_n_s_saturation_kernel, __pyx_t_8) < 0) __PYX_ERR(0, 3165, __pyx_L1_error) __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0; /* … */ __pyx_tuple__70 = PyTuple_Pack(2, __pyx_kp_u_extern_C___global___void_satura, __pyx_n_u_saturation_kernel); if (unlikely(!__pyx_tuple__70)) __PYX_ERR(0, 3165, __pyx_L1_error) __Pyx_GOTREF(__pyx_tuple__70); __Pyx_GIVEREF(__pyx_tuple__70);
3166: r'''
3167: extern "C" __global__
3168: void saturation_kernel(float * source, float * destination, int width, int height, double val_)
3169: {
3170: int i = blockIdx.x * blockDim.x + threadIdx.x;
3171: int j = blockIdx.y * blockDim.y + threadIdx.y;
3172:
3173: const int index = j * height + i;
3174: const int index1 = j * height * 3 + i * 3;
3175: const int t_max = width * height;
3176:
3177: float h, s, v;
3178: int ii = 0;
3179: float f, p, q, t;
3180: float mx, mn;
3181:
3182: __syncthreads();
3183:
3184: float red = 0.0f;
3185: float green = 0.0f;
3186: float blue = 0.0f;
3187:
3188: if (index > 0 && index < t_max) {
3189:
3190:
3191: red = source[index1 ] / 255.0f;
3192: green = source[index1 + 1] / 255.0f;
3193: blue = source[index1 + 2] / 255.0f;
3194:
3195:
3196:
3197: // Find max and min of RGB values
3198: if (red > green){
3199: if (red > blue){
3200: mx = red;
3201: if (blue > green){ mn = green;}
3202: else mn = blue;
3203: }
3204: else{
3205: mx = blue;
3206: if (blue > green){ mn = green;}
3207: else mn = blue;
3208: }
3209: }
3210: else{
3211: if (green > blue){
3212: mx = green;
3213: if (blue > red){ mn = red;}
3214: else mn = blue;
3215: }
3216: else{
3217: mx = blue;
3218: if (blue > red) { mn = red;}
3219: else mn = blue;
3220: }
3221: }
3222:
3223:
3224: // Convert RGB to HSV
3225: float df = mx-mn;
3226: float df_ = 1.0f/df;
3227:
3228: if (mx == mn)
3229: { h = 0.0;}
3230:
3231: else if (mx == red){
3232: h = (float)fmod(60.0f * ((green-blue) * df_) + 360.0, 360);
3233: }
3234: else if (mx == green){
3235: h = (float)fmod(60.0f * ((blue-red) * df_) + 120.0, 360);
3236: }
3237: else if (mx == blue){
3238: h = (float)fmod(60.0f * ((red-green) * df_) + 240.0, 360);
3239: }
3240:
3241: if (mx == 0.0){
3242: s = 0.0;
3243: }
3244: else{
3245: s = df/mx;
3246: }
3247:
3248: v = mx;
3249: h = h * 1.0f/360.0f;
3250:
3251:
3252: s = max(s + (float)val_, 0.0f);
3253: s = min(s, 1.0f);
3254:
3255: __syncthreads();
3256:
3257:
3258: // Convert HSV to RGB
3259: if (s == 0.0){
3260: destination[index1 ] = v;
3261: destination[index1 + 1] = v;
3262: destination[index1 + 2] = v;
3263: }
3264: else {
3265: ii = (int)(h*6.0f);
3266: f = (h * 6.0f) - ii;
3267: p = v*(1.0f - s);
3268: q = v*(1.0f - s * f);
3269: t = v*(1.0f - s * (1.0f - f));
3270: ii = ii%6;
3271:
3272: switch(ii) {
3273: case 0:
3274: destination[index1 ] = v;
3275: destination[index1 + 1] = t;
3276: destination[index1 + 2] = p;
3277: break;
3278: case 1:
3279: destination[index1 ] = q;
3280: destination[index1 + 1] = v;
3281: destination[index1 + 2] = p;
3282: break;
3283: case 2:
3284: destination[index1 ] = p;
3285: destination[index1 + 1] = v;
3286: destination[index1 + 2] = t;
3287: break;
3288: case 3:
3289: destination[index1 ] = p;
3290: destination[index1 + 1] = q;
3291: destination[index1 + 2] = v;
3292: break;
3293: case 4:
3294: destination[index1 ] = t;
3295: destination[index1 + 1] = p;
3296: destination[index1 + 2] = v;
3297: break;
3298: case 5:
3299: destination[index1 ] = v;
3300: destination[index1 + 1] = p;
3301: destination[index1 + 2] = q;
3302: break;
3303: default:
3304: destination[index1 ] = red ;
3305: destination[index1 + 1] = green;
3306: destination[index1 + 2] = blue;
3307: } //switch
3308: } //else
3309: __syncthreads();
3310:
3311:
3312: destination[index1 ] = min(destination[index1 ] * 255.0f, 255.0f);
3313: destination[index1 + 1] = min(destination[index1 + 1] * 255.0f, 255.0f);
3314: destination[index1 + 2] = min(destination[index1 + 2] * 255.0f, 255.0f);
3315:
3316: } // if (index >0
3317:
3318:
3319:
3320: } // main
3321: ''',
3322: 'saturation_kernel'
3323: )
3324:
3325:
3326:
3327: @cython.boundscheck(False)
3328: @cython.wraparound(False)
3329: @cython.nonecheck(False)
3330: @cython.cdivision(True)
3331: @cython.profile(False)
+3332: cdef object saturation_cupy(
static PyObject *__pyx_f_12PygameShader_10shader_gpu_saturation_cupy(PyObject *__pyx_v_cupy_array, PyObject *__pyx_v_grid_, PyObject *__pyx_v_block_, struct __pyx_opt_args_12PygameShader_10shader_gpu_saturation_cupy *__pyx_optional_args) {
float __pyx_v_val_ = ((float)1.0);
Py_ssize_t __pyx_v_w;
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__Pyx_RefNannyDeclarations
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if (__pyx_optional_args) {
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/* … */
/* function exit code */
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__Pyx_AddTraceback("PygameShader.shader_gpu.saturation_cupy", __pyx_clineno, __pyx_lineno, __pyx_filename);
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3333: object cupy_array,
3334: object grid_,
3335: object block_,
3336: float val_ = 1.0
3337: ):
3338:
3339:
3340: cdef:
3341: Py_ssize_t w, h
3342:
+3343: w, h = cupy_array.shape[0], cupy_array.shape[1]
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3367: """
3368: BILATERAL FILTER
3369:
3370: A bilateral filter is a non-linear, edge-preserving, and noise-reducing
3371: smoothing filter for images. It replaces the intensity of each pixel with a
3372: weighted average of intensity values from nearby pixels. This weight can be
3373: based on a Gaussian distribution.
3374:
3375: sigma_r & sigma_s are hard encoded in the GPU kernel
3376: Compatible with 32 - 24 bit image
3377:
3378: :param surface_ : pygame.Surface
3379: :param kernel_size_ : int; Kernel size (or neighbours pixels to be included in the calculation)
3380: :return : Return a 24 bit pygame.Surface with bilateral effect
3381: """
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#ifndef CYTHON_WITHOUT_ASSERTIONS
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3384:
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{
/*try:*/ {
/* … */
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+3386: cpu_array_ = pixels3d(surface_)
__Pyx_GetModuleGlobalName(__pyx_t_1, __pyx_n_s_pixels3d); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 3386, __pyx_L3_error) __Pyx_GOTREF(__pyx_t_1); __pyx_t_7 = NULL; if (CYTHON_UNPACK_METHODS && unlikely(PyMethod_Check(__pyx_t_1))) { __pyx_t_7 = PyMethod_GET_SELF(__pyx_t_1); if (likely(__pyx_t_7)) { PyObject* function = PyMethod_GET_FUNCTION(__pyx_t_1); __Pyx_INCREF(__pyx_t_7); __Pyx_INCREF(function); __Pyx_DECREF_SET(__pyx_t_1, function); } } __pyx_t_2 = (__pyx_t_7) ? __Pyx_PyObject_Call2Args(__pyx_t_1, __pyx_t_7, __pyx_v_surface_) : __Pyx_PyObject_CallOneArg(__pyx_t_1, __pyx_v_surface_); __Pyx_XDECREF(__pyx_t_7); __pyx_t_7 = 0; if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 3386, __pyx_L3_error) __Pyx_GOTREF(__pyx_t_2); __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0; __pyx_v_cpu_array_ = __pyx_t_2; __pyx_t_2 = 0;
3387:
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__pyx_t_8 = __Pyx_PyErr_ExceptionMatches(((PyObject *)(&((PyTypeObject*)PyExc_Exception)[0]))); if (__pyx_t_8) { __Pyx_AddTraceback("PygameShader.shader_gpu.bilateral_gpu", __pyx_clineno, __pyx_lineno, __pyx_filename); if (__Pyx_GetException(&__pyx_t_2, &__pyx_t_1, &__pyx_t_7) < 0) __PYX_ERR(0, 3388, __pyx_L5_except_error) __Pyx_GOTREF(__pyx_t_2); __Pyx_GOTREF(__pyx_t_1); __Pyx_GOTREF(__pyx_t_7); __Pyx_INCREF(__pyx_t_1); __pyx_v_e = __pyx_t_1; /*try:*/ { /* … */ /*finally:*/ { __pyx_L14_error:; /*exception exit:*/{ __Pyx_PyThreadState_declare __Pyx_PyThreadState_assign __pyx_t_13 = 0; __pyx_t_14 = 0; __pyx_t_15 = 0; __pyx_t_16 = 0; __pyx_t_17 = 0; __pyx_t_18 = 0; __Pyx_XDECREF(__pyx_t_10); __pyx_t_10 = 0; __Pyx_XDECREF(__pyx_t_9); __pyx_t_9 = 0; if (PY_MAJOR_VERSION >= 3) __Pyx_ExceptionSwap(&__pyx_t_16, &__pyx_t_17, &__pyx_t_18); if ((PY_MAJOR_VERSION < 3) || unlikely(__Pyx_GetException(&__pyx_t_13, &__pyx_t_14, &__pyx_t_15) < 0)) __Pyx_ErrFetch(&__pyx_t_13, &__pyx_t_14, &__pyx_t_15); __Pyx_XGOTREF(__pyx_t_13); __Pyx_XGOTREF(__pyx_t_14); __Pyx_XGOTREF(__pyx_t_15); __Pyx_XGOTREF(__pyx_t_16); __Pyx_XGOTREF(__pyx_t_17); __Pyx_XGOTREF(__pyx_t_18); __pyx_t_8 = __pyx_lineno; __pyx_t_11 = __pyx_clineno; __pyx_t_12 = __pyx_filename; { __Pyx_DECREF(__pyx_v_e); __pyx_v_e = NULL; } if (PY_MAJOR_VERSION >= 3) { __Pyx_XGIVEREF(__pyx_t_16); __Pyx_XGIVEREF(__pyx_t_17); __Pyx_XGIVEREF(__pyx_t_18); __Pyx_ExceptionReset(__pyx_t_16, __pyx_t_17, __pyx_t_18); } __Pyx_XGIVEREF(__pyx_t_13); __Pyx_XGIVEREF(__pyx_t_14); __Pyx_XGIVEREF(__pyx_t_15); __Pyx_ErrRestore(__pyx_t_13, __pyx_t_14, __pyx_t_15); __pyx_t_13 = 0; __pyx_t_14 = 0; __pyx_t_15 = 0; __pyx_t_16 = 0; __pyx_t_17 = 0; __pyx_t_18 = 0; __pyx_lineno = __pyx_t_8; __pyx_clineno = __pyx_t_11; __pyx_filename = __pyx_t_12; goto __pyx_L5_except_error; } } } goto __pyx_L5_except_error; __pyx_L5_except_error:;
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3392: Py_ssize_t w, h
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goto __pyx_L21_bool_binop_done;
}
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if (unlikely(__pyx_t_3)) {
/* … */
}
+3396: raise ValueError("Surface width and height cannot be null!")
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if (unlikely(__pyx_t_3)) {
/* … */
}
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3400:
+3401: return bilateral_cupy(cp.asarray(cpu_array_), kernel_size_)
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3402:
3403:
+3404: bilateral_kernel = cp.RawKernel(
__Pyx_GetModuleGlobalName(__pyx_t_8, __pyx_n_s_cp); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 3404, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_8); __pyx_t_12 = __Pyx_PyObject_GetAttrStr(__pyx_t_8, __pyx_n_s_RawKernel); if (unlikely(!__pyx_t_12)) __PYX_ERR(0, 3404, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_12); __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0; __pyx_t_8 = __Pyx_PyObject_Call(__pyx_t_12, __pyx_tuple__71, NULL); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 3404, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_8); __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0; if (PyDict_SetItem(__pyx_d, __pyx_n_s_bilateral_kernel, __pyx_t_8) < 0) __PYX_ERR(0, 3404, __pyx_L1_error) __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0; /* … */ __pyx_tuple__71 = PyTuple_Pack(2, __pyx_kp_u_extern_C___global___void_bilate, __pyx_n_u_bilateral_kernel); if (unlikely(!__pyx_tuple__71)) __PYX_ERR(0, 3404, __pyx_L1_error) __Pyx_GOTREF(__pyx_tuple__71); __Pyx_GIVEREF(__pyx_tuple__71);
3405: '''
3406: extern "C" __global__
3407: void bilateral_kernel(double* source, int filter_size, double* destination)
3408: {
3409:
3410: // float sigma_i (also call sigma_r) range kernel,
3411: // minimum amplitude of an edge.
3412: const double sigma_i2 = 80 * 80 * 2;
3413: // float sigma_s : Spatial extent of the kernel, size of the
3414: // considered neighborhood
3415: const double sigma_s2 = 16 * 16 * 2;
3416:
3417: double ir = 0.0;
3418: double wpr = 0.0;
3419: double r=0.0, dist=0.0, gs=0.0;
3420: double vr=0.0, wr=0.0;
3421: const double p = 3.14159265;
3422: const int k2 = (int)sqrt((float)filter_size);
3423:
3424: int a = 0;
3425:
3426: __syncthreads();
3427:
3428: for (int ky = 0; ky < k2; ++ky)
3429: {
3430: for (int kx = 0; kx < k2; ++kx)
3431: {
3432:
3433: dist = (double)sqrt((double)kx * (double)kx + (double)ky * (double)ky);
3434: gs = ((double)1.0 / (p * sigma_s2)) * (double)exp(-(dist * dist ) / sigma_s2);
3435: r = source[a];
3436: vr = r - source[filter_size >> 1];
3437: wr = ((double)1.0 / (p * sigma_i2)) * (double)exp(-(vr * vr ) / sigma_i2);
3438: wr = wr * gs;
3439:
3440: ir = ir + r * wr;
3441: wpr = wpr + wr;
3442: a += 1;
3443:
3444: } // for
3445: } // for
3446:
3447: __syncthreads();
3448:
3449: ir = ir / wpr;
3450: if (ir > 255.0) {ir = 255.0;}
3451: if (ir < 0.0) {ir = 0.0;}
3452: destination[0] = ir;
3453:
3454: __syncthreads();
3455:
3456: } //main
3457:
3458: ''',
3459: 'bilateral_kernel'
3460: )
3461:
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3540: '''
3541: extern "C" __global__
3542:
3543: __constant__ double k[9] = {-2.0, -1.0, 0.0, -1.0, 1.0, 1.0, 0.0, 1.0, 2.0};
3544:
3545:
3546: void sobel_kernel(double* buffer, int filter_size,
3547: double* return_value)
3548: {
3549:
3550: double color = 0.0;
3551:
3552: for (int i=0; i<9; ++i){
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3554: }
3555:
3556: if (color > 255.0) {color = 255.0;}
3557: if (color < 0.0) {color = 0.0;}
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3559:
3560: }
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3562: 'sobel_kernel'
3563: )
3564:
3565:
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3567: @cython.wraparound(False)
3568: @cython.nonecheck(False)
3569: @cython.cdivision(True)
3570: @cython.profile(False)
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3572: """
3573:
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3576: """
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3615:
3616:
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if (unlikely(!Py_OptimizeFlag)) {
if (unlikely(!((__pyx_v_intensity >= 0.0) != 0))) {
PyErr_SetObject(PyExc_AssertionError, __pyx_kp_u_Intensity_value_cannot_be_0_0);
__PYX_ERR(0, 3617, __pyx_L1_error)
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3618:
3619:
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3621:
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{
/*try:*/ {
/* … */
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__Pyx_XDECREF(__pyx_t_1); __pyx_t_1 = 0;
__Pyx_XDECREF(__pyx_t_2); __pyx_t_2 = 0;
__Pyx_XDECREF(__pyx_t_3); __pyx_t_3 = 0;
goto __pyx_L8_try_end;
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__Pyx_XDECREF(__pyx_t_4); __pyx_t_4 = 0;
__Pyx_XDECREF(__pyx_t_5); __pyx_t_5 = 0;
__Pyx_XDECREF(__pyx_t_6); __pyx_t_6 = 0;
__Pyx_XDECREF(__pyx_t_7); __pyx_t_7 = 0;
/* … */
__Pyx_XGIVEREF(__pyx_t_1);
__Pyx_XGIVEREF(__pyx_t_2);
__Pyx_XGIVEREF(__pyx_t_3);
__Pyx_ExceptionReset(__pyx_t_1, __pyx_t_2, __pyx_t_3);
goto __pyx_L1_error;
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{
/*try:*/ {
/* … */
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__Pyx_XDECREF(__pyx_t_2); __pyx_t_2 = 0;
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goto __pyx_L27_try_end;
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__Pyx_XDECREF(__pyx_t_11); __pyx_t_11 = 0;
__Pyx_XDECREF(__pyx_t_4); __pyx_t_4 = 0;
__Pyx_XDECREF(__pyx_t_5); __pyx_t_5 = 0;
__Pyx_XDECREF(__pyx_t_6); __pyx_t_6 = 0;
__Pyx_XDECREF(__pyx_t_7); __pyx_t_7 = 0;
/* … */
__Pyx_XGIVEREF(__pyx_t_3);
__Pyx_XGIVEREF(__pyx_t_2);
__Pyx_XGIVEREF(__pyx_t_1);
__Pyx_ExceptionReset(__pyx_t_3, __pyx_t_2, __pyx_t_1);
goto __pyx_L1_error;
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__Pyx_ErrFetch(&__pyx_t_6, &__pyx_t_4, &__pyx_t_5); __Pyx_GetModuleGlobalName(__pyx_t_11, __pyx_n_s_pygame); if (unlikely(!__pyx_t_11)) __PYX_ERR(0, 3629, __pyx_L24_except_error) __Pyx_GOTREF(__pyx_t_11); __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_t_11, __pyx_n_s_error); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 3629, __pyx_L24_except_error) __Pyx_GOTREF(__pyx_t_7); __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0; __pyx_t_10 = __Pyx_PyErr_GivenExceptionMatches(__pyx_t_6, __pyx_builtin_ValueError) || __Pyx_PyErr_GivenExceptionMatches(__pyx_t_6, __pyx_t_7); __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0; __Pyx_ErrRestore(__pyx_t_6, __pyx_t_4, __pyx_t_5); __pyx_t_6 = 0; __pyx_t_4 = 0; __pyx_t_5 = 0; if (__pyx_t_10) { __Pyx_AddTraceback("PygameShader.shader_gpu.area24_gpu", __pyx_clineno, __pyx_lineno, __pyx_filename); if (__Pyx_GetException(&__pyx_t_5, &__pyx_t_4, &__pyx_t_6) < 0) __PYX_ERR(0, 3629, __pyx_L24_except_error) __Pyx_GOTREF(__pyx_t_5); __Pyx_GOTREF(__pyx_t_4); __Pyx_GOTREF(__pyx_t_6); __Pyx_INCREF(__pyx_t_4); __pyx_v_e = __pyx_t_4; /*try:*/ { /* … */ /*finally:*/ { __pyx_L35_error:; /*exception exit:*/{ __Pyx_PyThreadState_declare __Pyx_PyThreadState_assign __pyx_t_18 = 0; __pyx_t_17 = 0; __pyx_t_16 = 0; __pyx_t_15 = 0; __pyx_t_14 = 0; __pyx_t_13 = 0; __Pyx_XDECREF(__pyx_t_11); __pyx_t_11 = 0; __Pyx_XDECREF(__pyx_t_7); __pyx_t_7 = 0; if (PY_MAJOR_VERSION >= 3) __Pyx_ExceptionSwap(&__pyx_t_15, &__pyx_t_14, &__pyx_t_13); if ((PY_MAJOR_VERSION < 3) || unlikely(__Pyx_GetException(&__pyx_t_18, &__pyx_t_17, &__pyx_t_16) < 0)) __Pyx_ErrFetch(&__pyx_t_18, &__pyx_t_17, &__pyx_t_16); __Pyx_XGOTREF(__pyx_t_18); __Pyx_XGOTREF(__pyx_t_17); __Pyx_XGOTREF(__pyx_t_16); __Pyx_XGOTREF(__pyx_t_15); __Pyx_XGOTREF(__pyx_t_14); __Pyx_XGOTREF(__pyx_t_13); __pyx_t_10 = __pyx_lineno; __pyx_t_9 = __pyx_clineno; __pyx_t_19 = __pyx_filename; { __Pyx_DECREF(__pyx_v_e); __pyx_v_e = NULL; } if (PY_MAJOR_VERSION >= 3) { __Pyx_XGIVEREF(__pyx_t_15); __Pyx_XGIVEREF(__pyx_t_14); __Pyx_XGIVEREF(__pyx_t_13); __Pyx_ExceptionReset(__pyx_t_15, __pyx_t_14, __pyx_t_13); } __Pyx_XGIVEREF(__pyx_t_18); __Pyx_XGIVEREF(__pyx_t_17); __Pyx_XGIVEREF(__pyx_t_16); __Pyx_ErrRestore(__pyx_t_18, __pyx_t_17, __pyx_t_16); __pyx_t_18 = 0; __pyx_t_17 = 0; __pyx_t_16 = 0; __pyx_t_15 = 0; __pyx_t_14 = 0; __pyx_t_13 = 0; __pyx_lineno = __pyx_t_10; __pyx_clineno = __pyx_t_9; __pyx_filename = __pyx_t_19; goto __pyx_L24_except_error; } } } goto __pyx_L24_except_error; __pyx_L24_except_error:;
+3630: raise ValueError('\nArray shape not understood.')
__pyx_t_7 = __Pyx_PyObject_Call(__pyx_builtin_ValueError, __pyx_tuple__17, NULL); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 3630, __pyx_L35_error) __Pyx_GOTREF(__pyx_t_7); __Pyx_Raise(__pyx_t_7, 0, 0, 0); __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0; __PYX_ERR(0, 3630, __pyx_L35_error) }
3631:
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__pyx_t_21 = ((__pyx_v_x < 0) != 0);
if (!__pyx_t_21) {
} else {
__pyx_t_20 = __pyx_t_21;
goto __pyx_L42_bool_binop_done;
}
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if (!__pyx_t_21) {
} else {
__pyx_t_20 = __pyx_t_21;
goto __pyx_L42_bool_binop_done;
}
__pyx_t_21 = ((__pyx_v_y < 0) != 0);
if (!__pyx_t_21) {
} else {
__pyx_t_20 = __pyx_t_21;
goto __pyx_L42_bool_binop_done;
}
__pyx_t_21 = ((__pyx_v_y > (__pyx_v_h - 1)) != 0);
__pyx_t_20 = __pyx_t_21;
__pyx_L42_bool_binop_done:;
if (__pyx_t_20) {
/* … */
}
+3634: return Surface((ax, ay), SRCALPHA), ax, ay
__Pyx_XDECREF(__pyx_r); __Pyx_GetModuleGlobalName(__pyx_t_4, __pyx_n_s_Surface); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 3634, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_4); __pyx_t_5 = __Pyx_PyInt_From_int(__pyx_v_ax); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 3634, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_5); __pyx_t_7 = __Pyx_PyInt_From_int(__pyx_v_ay); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 3634, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_7); __pyx_t_11 = PyTuple_New(2); if (unlikely(!__pyx_t_11)) __PYX_ERR(0, 3634, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_11); __Pyx_GIVEREF(__pyx_t_5); PyTuple_SET_ITEM(__pyx_t_11, 0, __pyx_t_5); __Pyx_GIVEREF(__pyx_t_7); PyTuple_SET_ITEM(__pyx_t_11, 1, __pyx_t_7); __pyx_t_5 = 0; __pyx_t_7 = 0; __Pyx_GetModuleGlobalName(__pyx_t_7, __pyx_n_s_SRCALPHA); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 3634, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_7); __pyx_t_5 = NULL; __pyx_t_9 = 0; if (CYTHON_UNPACK_METHODS && unlikely(PyMethod_Check(__pyx_t_4))) { __pyx_t_5 = PyMethod_GET_SELF(__pyx_t_4); if (likely(__pyx_t_5)) { PyObject* function = PyMethod_GET_FUNCTION(__pyx_t_4); __Pyx_INCREF(__pyx_t_5); __Pyx_INCREF(function); __Pyx_DECREF_SET(__pyx_t_4, function); __pyx_t_9 = 1; } } #if CYTHON_FAST_PYCALL if (PyFunction_Check(__pyx_t_4)) { PyObject *__pyx_temp[3] = {__pyx_t_5, __pyx_t_11, __pyx_t_7}; __pyx_t_6 = __Pyx_PyFunction_FastCall(__pyx_t_4, __pyx_temp+1-__pyx_t_9, 2+__pyx_t_9); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 3634, __pyx_L1_error) __Pyx_XDECREF(__pyx_t_5); __pyx_t_5 = 0; __Pyx_GOTREF(__pyx_t_6); __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0; __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0; } else #endif #if CYTHON_FAST_PYCCALL if (__Pyx_PyFastCFunction_Check(__pyx_t_4)) { PyObject *__pyx_temp[3] = {__pyx_t_5, __pyx_t_11, __pyx_t_7}; __pyx_t_6 = __Pyx_PyCFunction_FastCall(__pyx_t_4, __pyx_temp+1-__pyx_t_9, 2+__pyx_t_9); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 3634, __pyx_L1_error) __Pyx_XDECREF(__pyx_t_5); __pyx_t_5 = 0; __Pyx_GOTREF(__pyx_t_6); __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0; __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0; } else #endif { __pyx_t_22 = PyTuple_New(2+__pyx_t_9); if (unlikely(!__pyx_t_22)) __PYX_ERR(0, 3634, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_22); if (__pyx_t_5) { __Pyx_GIVEREF(__pyx_t_5); PyTuple_SET_ITEM(__pyx_t_22, 0, __pyx_t_5); __pyx_t_5 = NULL; } __Pyx_GIVEREF(__pyx_t_11); PyTuple_SET_ITEM(__pyx_t_22, 0+__pyx_t_9, __pyx_t_11); __Pyx_GIVEREF(__pyx_t_7); PyTuple_SET_ITEM(__pyx_t_22, 1+__pyx_t_9, __pyx_t_7); __pyx_t_11 = 0; __pyx_t_7 = 0; __pyx_t_6 = __Pyx_PyObject_Call(__pyx_t_4, __pyx_t_22, NULL); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 3634, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_6); __Pyx_DECREF(__pyx_t_22); __pyx_t_22 = 0; } __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0; __pyx_t_4 = __Pyx_PyInt_From_int(__pyx_v_ax); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 3634, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_4); __pyx_t_22 = __Pyx_PyInt_From_int(__pyx_v_ay); if (unlikely(!__pyx_t_22)) __PYX_ERR(0, 3634, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_22); __pyx_t_7 = PyTuple_New(3); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 3634, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_7); __Pyx_GIVEREF(__pyx_t_6); PyTuple_SET_ITEM(__pyx_t_7, 0, __pyx_t_6); __Pyx_GIVEREF(__pyx_t_4); PyTuple_SET_ITEM(__pyx_t_7, 1, __pyx_t_4); __Pyx_GIVEREF(__pyx_t_22); PyTuple_SET_ITEM(__pyx_t_7, 2, __pyx_t_22); __pyx_t_6 = 0; __pyx_t_4 = 0; __pyx_t_22 = 0; __pyx_r = __pyx_t_7; __pyx_t_7 = 0; goto __pyx_L0;
3635:
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__pyx_t_20 = ((__pyx_v_intensity == 0.0) != 0);
if (__pyx_t_20) {
/* … */
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3639:
+3640: lx = ax >> 1
__pyx_v_lx = (__pyx_v_ax >> 1);
+3641: ly = ay >> 1
__pyx_v_ly = (__pyx_v_ay >> 1);
3642:
3643: cdef:
3644:
+3645: int i=0, j=0
__pyx_v_i = 0; __pyx_v_j = 0;
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__pyx_v_w_low = __pyx_v_lx;
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__pyx_v_w_high = __pyx_v_lx;
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__pyx_v_h_low = __pyx_v_ly;
+3649: int h_high = ly
__pyx_v_h_high = __pyx_v_ly;
3650:
+3651: rgb = cupy.empty((ax, ay, 3), cupy.uint8, order='C')
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3653:
3654:
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__pyx_t_20 = ((__pyx_v_x < __pyx_v_lx) != 0);
if (__pyx_t_20) {
/* … */
goto __pyx_L47;
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/* … */
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3659:
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/* … */
goto __pyx_L48;
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/* … */
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3666: # rgb = rgb.transpose(1, 0, 2)
3667: # alpha = mask_alpha[lx - w_low:lx + w_high, ly - h_low:ly + h_high]
3668: # alpha = alpha.transpose(1, 0)
3669:
3670: # 175 FPS
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/* function exit code */
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__Pyx_XDECREF(__pyx_t_1);
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/* … */
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3702: ):
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3706: Compatible with image format 32 - 24 bit
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__Pyx_GetModuleGlobalName(__pyx_t_1, __pyx_n_s_pygame); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 3718, __pyx_L1_error)
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/* … */
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goto __pyx_L1_error;
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__pyx_t_9 = __Pyx_PyUnicode_FormatSafe(__pyx_kp_u_Cannot_reference_source_pixels, __pyx_v_e); if (unlikely(!__pyx_t_9)) __PYX_ERR(0, 3725, __pyx_L14_error) __Pyx_GOTREF(__pyx_t_9); __pyx_t_10 = __Pyx_PyObject_CallOneArg(__pyx_builtin_ValueError, __pyx_t_9); if (unlikely(!__pyx_t_10)) __PYX_ERR(0, 3725, __pyx_L14_error) __Pyx_GOTREF(__pyx_t_10); __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0; __Pyx_Raise(__pyx_t_10, 0, 0, 0); __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0; __PYX_ERR(0, 3725, __pyx_L14_error) }
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goto __pyx_L21_bool_binop_done;
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/* … */
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__pyx_t_7 = __Pyx_PyObject_Call(__pyx_builtin_ValueError, __pyx_tuple_, NULL); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 3732, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_7); __Pyx_Raise(__pyx_t_7, 0, 0, 0); __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0; __PYX_ERR(0, 3732, __pyx_L1_error)
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if (unlikely(!Py_OptimizeFlag)) {
__pyx_t_3 = (-1.0 <= __pyx_v_val_);
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3740:
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3743:
3744:
+3745: brightness_cuda = r'''
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3746:
3747:
3748: struct hsl{
3749: float h; // hue
3750: float s; // saturation
3751: float l; // value
3752: };
3753:
3754: struct rgb{
3755: float r;
3756: float g;
3757: float b;
3758: };
3759:
3760: __device__ struct rgb struct_hsl_to_rgb(float h, float s, float l);
3761: __device__ struct hsl struct_rgb_to_hsl(float r, float g, float b);
3762: __device__ float hue_to_rgb(float m1, float m2, float h);
3763: __device__ float fmin_rgb_value(float red, float green, float blue);
3764: __device__ float fmax_rgb_value(float red, float green, float blue);
3765:
3766:
3767:
3768:
3769:
3770: __device__ float fmax_rgb_value(float red, float green, float blue)
3771: {
3772: if (red>green){
3773: if (red>blue) {
3774: return red;
3775: }
3776: else {
3777: return blue;
3778: }
3779: }
3780: else if (green>blue){
3781: return green;
3782: }
3783: else {
3784: return blue;
3785: }
3786: }
3787:
3788:
3789: __device__ float fmin_rgb_value(float red, float green, float blue)
3790: {
3791: if (red<green){
3792: if (red<blue){
3793: return red;
3794: }
3795: else{
3796: return blue;}
3797: }
3798: else if (green<blue){
3799: return green;
3800: }
3801: else{
3802: return blue;
3803: }
3804: }
3805:
3806:
3807: __device__ float hue_to_rgb(float m1, float m2, float h)
3808: {
3809: if ((fabs(h) > 1.0f) && (h > 0.0f)) {
3810: h = (float)fmod(h, 1.0f);
3811: }
3812: else if (h < 0.0f){
3813: h = 1.0f - (float)fabs(h);
3814: }
3815:
3816: if (h < 1.0f/6.0f){
3817: return m1 + (m2 - m1) * h * 6.0f;
3818: }
3819: if (h < 0.5f){
3820: return m2;
3821: }
3822: if (h < 2.0f/3.0f){
3823: return m1 + ( m2 - m1 ) * (float)((float)2.0f/3.0f - h) * 6.0f;
3824: }
3825: return m1;
3826: }
3827:
3828: __device__ struct hsl struct_rgb_to_hsl(float r, float g, float b)
3829: {
3830: // check if all inputs are normalized
3831: assert ((0.0<= r) <= 1.0);
3832: assert ((0.0<= g) <= 1.0);
3833: assert ((0.0<= b) <= 1.0);
3834:
3835: struct hsl hsl_;
3836:
3837: float cmax=0.0f, cmin=0.0f, delta=0.0f, t;
3838:
3839: cmax = fmax_rgb_value(r, g, b);
3840: cmin = fmin_rgb_value(r, g, b);
3841: delta = (cmax - cmin);
3842:
3843:
3844: float h, l, s;
3845: l = (cmax + cmin) / 2.0f;
3846:
3847: if (delta == 0) {
3848: h = 0.0f;
3849: s = 0.0f;
3850: }
3851: else {
3852: if (cmax == r){
3853: t = (g - b) / delta;
3854: if ((fabs(t) > 6.0f) && (t > 0.0f)) {
3855: t = (float)fmod(t, 6.0f);
3856: }
3857: else if (t < 0.0f){
3858: t = 6.0f - (float)fabs(t);
3859: }
3860:
3861: h = 60.0f * t;
3862: }
3863: else if (cmax == g){
3864: h = 60.0f * (((b - r) / delta) + 2.0f);
3865: }
3866:
3867: else if (cmax == b){
3868: h = 60.0f * (((r - g) / delta) + 4.0f);
3869: }
3870:
3871: if (l <=0.5f) {
3872: s=(delta/(cmax + cmin));
3873: }
3874: else {
3875: s=(delta/(2.0f - cmax - cmin));
3876: }
3877: }
3878:
3879: hsl_.h = (float)(h * (float)1.0f/360.0f);
3880: hsl_.s = s;
3881: hsl_.l = l;
3882: return hsl_;
3883: }
3884:
3885:
3886:
3887: __device__ struct rgb struct_hsl_to_rgb(float h, float s, float l)
3888: {
3889:
3890: struct rgb rgb_;
3891:
3892: float m2=0.0f, m1=0.0f;
3893:
3894: if (s == 0.0){
3895: rgb_.r = l;
3896: rgb_.g = l;
3897: rgb_.b = l;
3898: return rgb_;
3899: }
3900: if (l <= 0.5f){
3901: m2 = l * (1.0f + s);
3902: }
3903: else{
3904: m2 = l + s - (l * s);
3905: }
3906: m1 = 2.0f * l - m2;
3907:
3908: rgb_.r = hue_to_rgb(m1, m2, (float)(h + 1.0f/3.0f));
3909: rgb_.g = hue_to_rgb(m1, m2, h);
3910: rgb_.b = hue_to_rgb(m1, m2, (float)(h - 1.0f/3.0f));
3911: return rgb_;
3912: }
3913:
3914: extern "C" __global__ void brightness(float * r, float * g, float * b, int width, int height, double val_)
3915: {
3916: int xx = blockIdx.x * blockDim.x + threadIdx.x;
3917: int yy = blockIdx.y * blockDim.y + threadIdx.y;
3918:
3919: // Index value of the current pixel
3920: const int index = yy * height + xx;
3921: const int t_max = height * width;
3922:
3923: struct hsl hsl_;
3924: struct rgb rgb_;
3925:
3926: if (index > 0 && index < t_max) {
3927:
3928: float rr = r[index] ;
3929: float gg = g[index] ;
3930: float bb = b[index] ;
3931:
3932: hsl_ = struct_rgb_to_hsl(rr, gg, bb);
3933: hsl_.l += val_;
3934: hsl_.l = max(hsl_.l, -1.0f);
3935: hsl_.l = min(hsl_.l, 1.0f);
3936: rgb_ = struct_hsl_to_rgb(hsl_.h, hsl_.s, hsl_.l);
3937:
3938: r[index] = rgb_.r ;
3939: g[index] = rgb_.g ;
3940: b[index] = rgb_.b ;
3941:
3942: }
3943:
3944:
3945: }
3946:
3947:
3948:
3949: '''
3950:
3951:
3952:
3953:
3954: @cython.boundscheck(False)
3955: @cython.wraparound(False)
3956: @cython.nonecheck(False)
3957: @cython.cdivision(True)
3958: @cython.profile(False)
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static PyObject *__pyx_f_12PygameShader_10shader_gpu_brightness_cupy(PyObject *__pyx_v_cupy_array, PyObject *__pyx_v_grid_, PyObject *__pyx_v_block_, float __pyx_v_val_, PyObject *__pyx_v_w, PyObject *__pyx_v_h) {
PyObject *__pyx_v_module = NULL;
PyObject *__pyx_v_bright = NULL;
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3960: object cupy_array,
3961: object grid_,
3962: object block_,
3963: float val_,
3964: w, h
3965: ):
3966:
3967: """
3968: BRIGHTNESS
3969:
3970:
3971: :param cupy_array: cupy.ndarray; shape (w, h, 3) containing RGB pixel values
3972: :param grid_ : tuple; grid values (grid_y, grid_x) e.g (25, 25). The grid values and block values must
3973: match the texture and array sizes.
3974: :param block_ : tuple; block values (block_y, block_x) e.g (32, 32). Maximum threads is 1024.
3975: Max threads = block_x * block_y
3976: :param val_ : float; Float values representing the next hue value
3977: :param w : integer;
3978: :param h : integer;
3979: :return : pygame.Surface with adjusted brightness
3980: """
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3983:
3984: cdef:
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4061: float h; // hue
4062: float s; // saturation
4063: float l; // value
4064: };
4065:
4066: struct rgb{
4067: float r;
4068: float g;
4069: float b;
4070: };
4071:
4072: __device__ struct rgb struct_hsl_to_rgb(float h, float s, float l);
4073: __device__ struct hsl struct_rgb_to_hsl(float r, float g, float b);
4074: __device__ float hue_to_rgb(float m1, float m2, float h);
4075: __device__ float fmin_rgb_value(float red, float green, float blue);
4076: __device__ float fmax_rgb_value(float red, float green, float blue);
4077:
4078: __device__ float fmax_rgb_value(float red, float green, float blue)
4079: {
4080: if (red>green){
4081: if (red>blue) {
4082: return red;
4083: }
4084: else {
4085: return blue;
4086: }
4087: }
4088: else if (green>blue){
4089: return green;
4090: }
4091: else {
4092: return blue;
4093: }
4094: }
4095:
4096: __device__ float fmin_rgb_value(float red, float green, float blue)
4097: {
4098: if (red<green){
4099: if (red<blue){
4100: return red;
4101: }
4102: else{
4103: return blue;}
4104: }
4105: else if (green<blue){
4106: return green;
4107: }
4108: else{
4109: return blue;
4110: }
4111: }
4112:
4113: __device__ float hue_to_rgb(float m1, float m2, float h)
4114: {
4115: if ((fabs(h) > 1.0f) && (h > 0.0f)) {
4116: h = (float)fmod(h, 1.0f);
4117: }
4118: else if (h < 0.0f){
4119: h = 1.0f - (float)fabs(h);
4120: }
4121:
4122: if (h < 1.0f/6.0f){
4123: return m1 + (m2 - m1) * h * 6.0f;
4124: }
4125: if (h < 0.5f){
4126: return m2;
4127: }
4128: if (h < 2.0f/3.0f){
4129: return m1 + ( m2 - m1 ) * (float)((float)2.0f/3.0f - h) * 6.0f;
4130: }
4131: return m1;
4132: }
4133:
4134: __device__ struct hsl struct_rgb_to_hsl(float r, float g, float b)
4135: {
4136: // check if all inputs are normalized
4137: assert ((0.0<= r) <= 1.0);
4138: assert ((0.0<= g) <= 1.0);
4139: assert ((0.0<= b) <= 1.0);
4140:
4141: struct hsl hsl_;
4142:
4143: float cmax=0.0f, cmin=0.0f, delta=0.0f, t;
4144:
4145: cmax = fmax_rgb_value(r, g, b);
4146: cmin = fmin_rgb_value(r, g, b);
4147: delta = (cmax - cmin);
4148:
4149:
4150: float h, l, s;
4151: l = (cmax + cmin) / 2.0f;
4152:
4153: if (delta == 0) {
4154: h = 0.0f;
4155: s = 0.0f;
4156: }
4157: else {
4158: if (cmax == r){
4159: t = (g - b) / delta;
4160: if ((fabs(t) > 6.0f) && (t > 0.0f)) {
4161: t = (float)fmod(t, 6.0f);
4162: }
4163: else if (t < 0.0f){
4164: t = 6.0f - (float)fabs(t);
4165: }
4166:
4167: h = 60.0f * t;
4168: }
4169: else if (cmax == g){
4170: h = 60.0f * (((b - r) / delta) + 2.0f);
4171: }
4172:
4173: else if (cmax == b){
4174: h = 60.0f * (((r - g) / delta) + 4.0f);
4175: }
4176:
4177: if (l <=0.5f) {
4178: s=(delta/(cmax + cmin));
4179: }
4180: else {
4181: s=(delta/(2.0f - cmax - cmin));
4182: }
4183: }
4184:
4185: hsl_.h = (float)(h * (float)1.0f/360.0f);
4186: hsl_.s = s;
4187: hsl_.l = l;
4188: return hsl_;
4189: }
4190:
4191:
4192:
4193: __device__ struct rgb struct_hsl_to_rgb(float h, float s, float l)
4194: {
4195:
4196: struct rgb rgb_;
4197:
4198: float m2=0.0f, m1=0.0f;
4199:
4200: if (s == 0.0){
4201: rgb_.r = l;
4202: rgb_.g = l;
4203: rgb_.b = l;
4204: return rgb_;
4205: }
4206: if (l <= 0.5f){
4207: m2 = l * (1.0f + s);
4208: }
4209: else{
4210: m2 = l + s - (l * s);
4211: }
4212: m1 = 2.0f * l - m2;
4213:
4214: rgb_.r = hue_to_rgb(m1, m2, (float)(h + 1.0f/3.0f));
4215: rgb_.g = hue_to_rgb(m1, m2, h);
4216: rgb_.b = hue_to_rgb(m1, m2, (float)(h - 1.0f/3.0f));
4217: return rgb_;
4218: }
4219:
4220: extern "C" __global__ void rgb2hsl(float * r, float * g, float * b, int width, int height, double val_)
4221: {
4222: int xx = blockIdx.x * blockDim.x + threadIdx.x;
4223: int yy = blockIdx.y * blockDim.y + threadIdx.y;
4224:
4225: // Index value of the current pixel
4226: const int index = yy * height + xx;
4227: const int t_max = height * width;
4228:
4229: struct hsl hsl_;
4230: struct rgb rgb_;
4231: float h;
4232: if (index > 0 && index < t_max) {
4233:
4234: float rr = r[index] ;
4235: float gg = g[index] ;
4236: float bb = b[index] ;
4237:
4238: hsl_ = struct_rgb_to_hsl(rr, gg, bb);
4239: h += hsl_.h + val_;
4240: rgb_ = struct_hsl_to_rgb(h, hsl_.s, hsl_.l);
4241:
4242: r[index] = rgb_.r ;
4243: g[index] = rgb_.g ;
4244: b[index] = rgb_.b ;
4245: }
4246: }
4247: '''
4248:
4249:
4250: @cython.boundscheck(False)
4251: @cython.wraparound(False)
4252: @cython.nonecheck(False)
4253: @cython.cdivision(True)
4254: @cython.profile(False)
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4256: object cupy_array,
4257: object grid_,
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4259: float val_,
4260: w, h
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4285:
4286:
4287:
4288:
4289:
+4290: dithering_kernel = cp.RawKernel(
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4291: r'''
4292: extern "C"
4293:
4294: __global__ void dithering_kernel(unsigned char * source,
4295: float * destination, int w, int h, double factor_)
4296: {
4297:
4298: int i = blockIdx.x * blockDim.x + threadIdx.x;
4299: int j = blockIdx.y * blockDim.y + threadIdx.y;
4300:
4301: const int index = j * h + i; // (2d)
4302: const int index1 = j * h * 3 + i * 3; // (3d)
4303: const int t_max = w * h;
4304: const int t_max1 = w * h * 3;
4305:
4306: const float c1 = (float)(7.0f / 16.0f);
4307: const float c2 = (float)(3.0f / 16.0f);
4308: const float c3 = (float)(5.0f / 16.0f);
4309: const float c4 = (float)(1.0f / 16.0f);
4310:
4311: const int col = h * 3;
4312:
4313: float old_red = (float)source[index1 % t_max1 ];
4314: float old_green = (float)source[(index1 + 1) % t_max1];
4315: float old_blue = (float)source[(index1 + 2) % t_max1];
4316: __syncthreads();
4317:
4318: float new_red = (float)roundf(old_red);
4319: float new_green = (float)roundf(old_green);
4320: float new_blue = (float)roundf(old_blue);
4321:
4322:
4323: source[index1 % t_max1 ] = (unsigned char)new_red;
4324: source[(index1 + 1) % t_max1 ] = (unsigned char)new_green;
4325: source[(index1 + 2) % t_max1 ] = (unsigned char)new_blue;
4326: __syncthreads();
4327:
4328: float quantization_error_red = (float)(old_red - new_red);
4329: float quantization_error_green = (float)(old_green - new_green);
4330: float quantization_error_blue = (float)(old_blue - new_blue);
4331:
4332: destination[(index1 + 3)%t_max1] = (float)(destination[(index1 + 3)% t_max1] + quantization_error_red * c1)* 255.0f;
4333: destination[(index1 + 4)%t_max1] = (float)(destination[(index1 + 4)% t_max1] + quantization_error_green * c1)* 255.0f;
4334: destination[(index1 + 5)%t_max1] = (float)(destination[(index1 + 5)% t_max1] + quantization_error_blue * c1)* 255.0f;
4335:
4336:
4337: destination[(index1 + col - 3)% t_max1] = (float)(destination[(index1 + col - 3)% t_max1] + quantization_error_red * c2)* 255.0f;
4338: destination[(index1 + col - 2)% t_max1] = (float)(destination[(index1 + col - 2)% t_max1] + quantization_error_green * c2)* 255.0f;
4339: destination[(index1 + col - 1)% t_max1] = (float)(destination[(index1 + col - 1)% t_max1] + quantization_error_blue * c2)* 255.0f;
4340:
4341:
4342: destination[(index1 + col )% t_max1] = (float)(destination[(index1 + col )% t_max1] + quantization_error_red * c3)* 255.0f;
4343: destination[(index1 + col + 1)% t_max1] = (float)(destination[(index1 + col + 1)% t_max1] + quantization_error_green * c3)* 255.0f;
4344: destination[(index1 + col + 2)% t_max1] = (float)(destination[(index1 + col + 2)% t_max1] + quantization_error_blue * c3)* 255.0f;
4345:
4346:
4347: destination[(index1 + col + 3)% t_max1] = (float)(destination[(index1 + col + 3)% t_max1] + quantization_error_red * c4) * 255.0f;
4348: destination[(index1 + col + 4)% t_max1] = (float)(destination[(index1 + col + 4)% t_max1] + quantization_error_green * c4) * 255.0f;
4349: destination[(index1 + col + 5)% t_max1] = (float)(destination[(index1 + col + 5)% t_max1] + quantization_error_blue * c4) * 255.0f;
4350:
4351: __syncthreads();
4352: }
4353: ''',
4354: 'dithering_kernel'
4355: )
4356:
4357:
4358: # TODO NOT WORKING
4359: @cython.boundscheck(False)
4360: @cython.wraparound(False)
4361: @cython.nonecheck(False)
4362: @cython.cdivision(True)
4363: @cython.profile(False)
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4365: object gpu_array_,
4366: object grid_,
4367: object block_,
4368: float factor_=1.0
4369: ):
4370:
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4395:
4396:
4397: # -------------------------------------------------------------------------------------------------------------------
4398:
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4400: @cython.wraparound(False)
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4405: object surface_,
4406: float focal,
4407: float focal_texture,
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4409: object block_
4410: ):
4411: """
4412: THIS SHADER CAN BE USE TO DISPLAY THE GAME THROUGH A LENS EFFECT
4413:
4414: Display a fisheye effect in real time given a pygame.Surface
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4416:
4417:
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4428:
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4436:
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4438: r'''
4439:
4440: extern "C" __global__
4441:
4442: void fisheye_kernel(unsigned char * destination, unsigned char * source,
4443: const int w, const int h, double focal, double focal_texture)
4444: {
4445: int i = blockIdx.x * blockDim.x + threadIdx.x;
4446: int j = blockIdx.y * blockDim.y + threadIdx.y;
4447:
4448: const int index = j * h + i; // (2d)
4449: const int index1 = j * h * 3 + i * 3; // (3d)
4450: const int t_max = w * h;
4451:
4452: const float c1 = 2.0f / (float)h;
4453: const float c2 = 2.0f / (float)w;
4454: const float w2 = (float)w * 0.5f;
4455: const float h2 = (float)h * 0.5f;
4456:
4457: __syncthreads();
4458:
4459:
4460: if (index> 0 && index < t_max){
4461:
4462: float nx = j * c2 - 1.0f;
4463: float nx2 = nx * nx;
4464:
4465: float ny = i * c1 - 1.0f;
4466: float ny2 = ny * ny;
4467: float r = (float)sqrt(nx2 + ny2);
4468: if (0.0f <= r && r <= 1.0f){
4469: float nr = (r * focal + 1.0f - (float)sqrt(1.0f - (nx2 + ny2))) * focal_texture;
4470: if (nr <= 1.0f){
4471: float theta = (float)atan2(ny, nx);
4472: float nxn = nr * (float)cos(theta);
4473: float nyn = nr * (float)sin(theta);
4474: int x2 = (int)(nxn * w2 + w2);
4475: int y2 = (int)(nyn * h2 + h2);
4476: int v = (int)(y2 * w + x2);
4477: int index2 = x2 * h * 3 + y2 * 3;
4478: destination[index1 + 0] = source[index2 + 0];
4479: destination[index1 + 1] = source[index2 + 1];
4480: destination[index1 + 2] = source[index2 + 2];
4481: }
4482: }
4483: }
4484: __syncthreads();
4485: }
4486: ''',
4487: 'fisheye_kernel'
4488: )
4489:
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4491: @cython.wraparound(False)
4492: @cython.nonecheck(False)
4493: @cython.cdivision(True)
4494: @cython.profile(False)
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4500:
4501: cdef:
4502: Py_ssize_t w, h
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4504:
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4508: grid_,
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4526: object surface_,
4527: float rad,
4528: object grid_,
4529: object block_,
4530: unsigned int centre_x,
4531: unsigned int centre_y
4532:
4533: ):
4534:
4535:
4536: """
4537: SWIRL AN IMAGE
4538:
4539: Compatible 24 - 32 bit with or without alpha layer
4540:
4541: :param surface_ : Pygame.Surface compatible 24-32 bit
4542: :param rad : float; Float value representing a variable angle in radians
4543: :param grid_ : tuple; grid values (grid_y, grid_x) e.g (25, 25). The grid values and block values must
4544: match the texture and array sizes.
4545: :param block_ : tuple; block values (block_y, block_x) e.g (32, 32). Maximum threads is 1024.
4546: Max threads = block_x * block_y
4547: :return : pygame.Surface with a swirl effect
4548: """
4549:
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4560:
4561:
+4562: swirl_kernel = cp.RawKernel(
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4563: r'''
4564:
4565: extern "C" __global__
4566:
4567: void swirl_kernel(unsigned char * destination, unsigned char * source, double rad,
4568: const int w, const int h, double x, double y)
4569: {
4570: int i = blockIdx.x * blockDim.x + threadIdx.x;
4571: int j = blockIdx.y * blockDim.y + threadIdx.y;
4572:
4573: const int index = j * h + i; // (2d)
4574: const int index1 = j * h * 3 + i * 3; // (3d)
4575: const int t_max = w * h;
4576:
4577:
4578: __syncthreads();
4579:
4580: if (index> 0 && index < t_max){
4581:
4582: // 3 constant can be passed instead
4583: float columns = x * w;
4584: float rows = y * h;
4585: float r_max = (float)sqrt(columns * columns + rows * rows);
4586:
4587: float di = (float)j - columns;
4588: float dj = (float)i - rows;
4589:
4590: float r = (float)sqrt(di * di + dj * dj);
4591:
4592: float c1 = (float)cos(rad * r/r_max);
4593: float c2 = (float)sin(rad * r/r_max);
4594:
4595: int diffx = (int)(di * c1 - dj * c2 + columns);
4596: int diffy = (int)(di * c2 + dj * c1 + rows);
4597:
4598: if ((diffx >-1 && diffx < w) && (diffy >-1 && diffy < h)){
4599:
4600: int index2 = diffx * h * 3 + diffy * 3;
4601: __syncthreads();
4602: destination[index1 + 0] = source[index2 + 0];
4603: destination[index1 + 1] = source[index2 + 1];
4604: destination[index1 + 2] = source[index2 + 2];
4605: }
4606: }
4607: __syncthreads();
4608: }
4609: ''',
4610: 'swirl_kernel'
4611: )
4612:
4613: @cython.boundscheck(False)
4614: @cython.wraparound(False)
4615: @cython.nonecheck(False)
4616: @cython.cdivision(True)
4617: @cython.profile(False)
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4626: cdef:
4627: Py_ssize_t w, h
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4629:
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if (!__pyx_t_9) {
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goto __pyx_L6_bool_binop_done;
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4652: """
4653: CREATE A WAVE EFFECT
4654:
4655: e.g
4656: IMAGE = wave_gpu(IMAGE, 8 * math.pi/180.0 + FRAME/10, 8, grid, block)
4657: IMAGE = scale(IMAGE, (WIDTH + 16, HEIGHT + 16)) # Hide the left and bottom borders
4658:
4659: :param surface_ : pygame.Surface compatible 24 - 32 bit
4660: :param rad_ : float; representing a variable angle in radians
4661: :param size_ : integer; block size (for a realistic wave effect, keep the size below 15)
4662: :param grid_ : tuple; grid values (grid_y, grid_x) e.g (25, 25). The grid values and block values must
4663: match the texture and array sizes.
4664: :param block_ : tuple; block values (block_y, block_x) e.g (32, 32). Maximum threads is 1024.
4665: Max threads = block_x * block_y
4666: :return : Return a pygame.Surface with a wave effect. Re-scale the final image if you can
4667: see the left and bottom side with a texture wrap around effect.
4668: Enlarging the final image will hide this effect when blit from the screen origin (0, 0)
4669: """
4670:
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4679:
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4681:
4682:
+4683: wave_kernel = cp.RawKernel(
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4684:
4685: '''
4686:
4687: extern "C" __global__
4688:
4689: void wave_kernel(unsigned char * destination, unsigned char * source,
4690: double rad, int size, const int w, const int h)
4691: {
4692:
4693: unsigned int i = blockIdx.x * blockDim.x + threadIdx.x;
4694: unsigned int j = blockIdx.y * blockDim.y + threadIdx.y;
4695:
4696: const int index1 = j * h * 3 + i * 3;
4697: const int t_max1 = w * h * 3;
4698:
4699: const float c1 = 1.0f / (float)(size * size);
4700:
4701: if (i < h && j < w) {
4702:
4703: unsigned int y_pos = (unsigned int) (j + size + (int) ((float) sin(rad + (float) j * c1) * (float) size));
4704: unsigned int x_pos = (unsigned int) (i + size + (int) ((float) sin(rad + (float) i * c1) * (float) size));
4705:
4706: // % t_max1 help wrap around the image when index is overflow in the texture
4707: unsigned int index2 = (unsigned int) (y_pos * h * 3 + x_pos * 3) % t_max1;
4708: __syncthreads();
4709: destination[index1 + 0] = source[index2 + 0];
4710: destination[index1 + 1] = source[index2 + 1];
4711: destination[index1 + 2] = source[index2 + 2];
4712: }
4713:
4714: }
4715: ''',
4716: 'wave_kernel'
4717: )
4718:
4719:
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4721: @cython.wraparound(False)
4722: @cython.nonecheck(False)
4723: @cython.cdivision(True)
4724: @cython.profile(False)
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4756: object surface_,
4757: unsigned int delta_x,
4758: unsigned int delta_y,
4759: object grid_,
4760: object block_,
4761: float zoom = 1.0,
4762: float fx = 0.05
4763: ):
4764: """
4765:
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4767: :param delta_x:
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4770: match the texture and array sizes.
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4783:
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/* … */
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4792:
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4795:
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4801:
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/*try:*/ {
/* … */
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/* … */
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__Pyx_XGIVEREF(__pyx_t_11);
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__Pyx_ExceptionReset(__pyx_t_10, __pyx_t_11, __pyx_t_12);
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+4803: gpu_array = pixels3d(surface_)
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4804:
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+4806: raise ValueError("\nCannot reference source pixels into a 3d array.\n %s " % e)
__pyx_t_5 = __Pyx_PyUnicode_FormatSafe(__pyx_kp_u_Cannot_reference_source_pixels, __pyx_v_e); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 4806, __pyx_L26_error) __Pyx_GOTREF(__pyx_t_5); __pyx_t_14 = __Pyx_PyObject_CallOneArg(__pyx_builtin_ValueError, __pyx_t_5); if (unlikely(!__pyx_t_14)) __PYX_ERR(0, 4806, __pyx_L26_error) __Pyx_GOTREF(__pyx_t_14); __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0; __Pyx_Raise(__pyx_t_14, 0, 0, 0); __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0; __PYX_ERR(0, 4806, __pyx_L26_error) }
4807:
+4808: return chromatic_cupy(cupy.asarray(gpu_array),
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4809: grid_, block_, delta_x, delta_y, zoom, fx)
4810:
4811:
+4812: chromatic_kernel = cp.RawKernel(
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4813:
4814: '''
4815:
4816: extern "C"
4817:
4818: __global__ void chromatic_kernel(unsigned char * destination, unsigned char * source,
4819: const int w, const int h, int delta_x, int delta_y, double zoom, double fx)
4820: {
4821:
4822: unsigned int i = blockIdx.x * blockDim.x + threadIdx.x;
4823: unsigned int j = blockIdx.y * blockDim.y + threadIdx.y;
4824:
4825: int index1 = j * h * 3 + i * 3;
4826: const unsigned int t_max = w * h * 3;
4827: unsigned char local_memory[3];
4828: const float dw = (float)delta_x/(float)w;
4829: const float dh = (float)delta_y/(float)h;
4830:
4831: float nx = float((float)i / (float)h) - dh;
4832: float ny = float((float)j / (float)w) - dw;
4833:
4834: float theta_rad = (float)atan2 (ny,nx);
4835:
4836: float nx2 = nx * nx;
4837: float ny2 = ny * ny;
4838:
4839: float dist = (float)sqrt(nx2 + ny2);
4840:
4841: float new_dist = dist * (zoom - fx);
4842:
4843: float new_ii = (float)cos((float)theta_rad) * new_dist ;
4844: float new_jj = (float)sin((float)theta_rad) * new_dist;
4845:
4846: int new_j = (int)((new_jj + dw) * (float)w);
4847: int new_i = (int)((new_ii + dh) * (float)h);
4848:
4849: if (i < h && j < w ) {
4850: __syncthreads();
4851: const int r = new_j * h * 3 + new_i * 3 + 0;
4852: local_memory[0] = source[r];
4853: destination[index1 + 0] = local_memory[0];
4854:
4855: }
4856: new_dist = dist * (zoom - fx * 2);
4857:
4858: new_j = (int)(((float)sin((float)theta_rad) * new_dist + dw) * (float)w);
4859: new_i = (int)(((float)cos((float)theta_rad) * new_dist + dh) * (float)h);
4860:
4861: if (i < h && j < w ) {
4862: __syncthreads();
4863: const int g = new_j * h * 3 + new_i * 3 + 1;
4864: local_memory[1] = source[g];
4865: destination[index1 + 1] = local_memory[1];
4866:
4867: }
4868:
4869: new_dist = dist * (zoom - fx * 3);
4870:
4871: new_ii = (float)cos((float)theta_rad) * new_dist;
4872: new_jj = (float)sin((float)theta_rad) * new_dist;
4873:
4874: new_j = (int)((new_jj + dw) * (float)w);
4875: new_i = (int)((new_ii + dh) * (float)h);
4876:
4877: if (i < h && j < w) {
4878: __syncthreads();
4879: const int b = new_j * h * 3 + new_i * 3 + 2;
4880: local_memory[2] = source[b];
4881: destination[index1 + 2] = local_memory[2];
4882: }
4883: }
4884: ''',
4885: 'chromatic_kernel'
4886: )
4887:
4888: @cython.boundscheck(False)
4889: @cython.wraparound(False)
4890: @cython.nonecheck(False)
4891: @cython.cdivision(True)
4892: @cython.profile(False)
+4893: cdef inline chromatic_cupy(
static CYTHON_INLINE PyObject *__pyx_f_12PygameShader_10shader_gpu_chromatic_cupy(PyObject *__pyx_v_gpu_array, PyObject *__pyx_v_grid_, PyObject *__pyx_v_block_, unsigned int __pyx_v_delta_x, unsigned int __pyx_v_delta_y, struct __pyx_opt_args_12PygameShader_10shader_gpu_chromatic_cupy *__pyx_optional_args) {
float __pyx_v_zoom = ((float)1.0);
float __pyx_v_fx = ((float)0.05);
Py_ssize_t __pyx_v_w;
Py_ssize_t __pyx_v_h;
PyObject *__pyx_v_destination = NULL;
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__Pyx_RefNannyDeclarations
__Pyx_RefNannySetupContext("chromatic_cupy", 0);
if (__pyx_optional_args) {
if (__pyx_optional_args->__pyx_n > 0) {
__pyx_v_zoom = __pyx_optional_args->zoom;
if (__pyx_optional_args->__pyx_n > 1) {
__pyx_v_fx = __pyx_optional_args->fx;
}
}
}
/* … */
/* function exit code */
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__Pyx_XDECREF(__pyx_t_1);
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+4894: object gpu_array,
struct __pyx_opt_args_12PygameShader_10shader_gpu_chromatic_cupy {
int __pyx_n;
float zoom;
float fx;
};
4895: object grid_,
4896: object block_,
4897: unsigned int delta_x,
4898: unsigned int delta_y,
4899: float zoom = 1.0,
4900: float fx = 0.05
4901: ):
4902: cdef:
4903: Py_ssize_t w, h
+4904: w, h = gpu_array.shape[:2]
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4956:
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4967: prev_w, prev_h, grid_, block_, delta_x, delta_y)
4968:
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4970:
4971: '''
4972:
4973: extern "C" __global__
4974:
4975: void rgb_split_kernel(unsigned char * destination, unsigned char * source,
4976: const int w, const int h, const int ww, const int hh,
4977: double delta_x, double delta_y)
4978: {
4979:
4980: unsigned int i = blockIdx.x * blockDim.x + threadIdx.x;
4981: unsigned int j = blockIdx.y * blockDim.y + threadIdx.y;
4982:
4983: int index1 = j * h * 3 + i * 3;
4984: int index2 = j * hh * 3 + i * 3;
4985: unsigned char local_memory[3];
4986:
4987: if (i < hh && j < ww) {
4988:
4989: const int r = (int)(j + delta_x * 1.0f) * hh * 3 + (int)(i + delta_y * 1.0f) * 3 + 0;
4990: const int g = (int)(j + delta_x * 2.0f) * hh * 3 + (int)(i + delta_y * 2.0f) * 3 + 1;
4991: const int b = (int)(j + delta_x * 3.0f) * hh * 3 + (int)(i + delta_y * 3.0f) * 3 + 2;
4992: local_memory[0] = source[r];
4993: local_memory[1] = source[g];
4994: local_memory[2] = source[b];
4995: __syncthreads();
4996: destination[index1 + 0] = local_memory[0];
4997: destination[index1 + 1] = local_memory[1];
4998: destination[index1 + 2] = local_memory[2];
4999:
5000: }
5001:
5002: }
5003: ''',
5004: 'rgb_split_kernel'
5005: )
5006:
5007:
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5009: @cython.wraparound(False)
5010: @cython.nonecheck(False)
5011: @cython.cdivision(True)
5012: @cython.profile(False)
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5018: object block_,
5019: float delta_x,
5020: float delta_y
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5029: grid_,
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5037:
5038: # ---------------------------------------------------------------------------------------------------------------
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/* function exit code */
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5046: object surface_,
5047: unsigned int delta_x,
5048: unsigned int delta_y,
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5050: object block_,
5051: float zoom = 0.9999
5052: ):
5053: """
5054:
5055: :param surface_:
5056: :param delta_x:
5057: :param delta_y:
5058: :param grid_ : tuple; grid values (grid_y, grid_x) e.g (25, 25). The grid values and block values must
5059: match the texture and array sizes.
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5062: :param zoom:
5063: :return:
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if (unlikely(!Py_OptimizeFlag)) {
__Pyx_GetModuleGlobalName(__pyx_t_1, __pyx_n_s_pygame); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 5065, __pyx_L1_error)
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if (unlikely(!Py_OptimizeFlag)) {
if (unlikely(!((__pyx_v_w != 0) != 0))) {
PyErr_SetObject(PyExc_AssertionError, __pyx_kp_u_Image_width_cannot_be_null);
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#ifndef CYTHON_WITHOUT_ASSERTIONS
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if (unlikely(!((__pyx_v_h != 0) != 0))) {
PyErr_SetObject(PyExc_AssertionError, __pyx_kp_u_Image_height_cannot_be_null);
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if (!__pyx_t_9) {
} else {
__pyx_t_3 = __pyx_t_9;
goto __pyx_L6_bool_binop_done;
}
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if (unlikely(__pyx_t_3)) {
/* … */
}
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5076:
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if (!__pyx_t_9) {
} else {
__pyx_t_3 = __pyx_t_9;
goto __pyx_L9_bool_binop_done;
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__pyx_L9_bool_binop_done:;
if (unlikely(__pyx_t_3)) {
/* … */
}
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5079:
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__pyx_v_delta_x = (__pyx_v_delta_x % __pyx_v_w);
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__pyx_v_delta_y = (__pyx_v_delta_y % __pyx_v_h);
5082:
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{
/*try:*/ {
/* … */
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goto __pyx_L1_error;
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__Pyx_GetModuleGlobalName(__pyx_t_4, __pyx_n_s_pixels3d); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 5084, __pyx_L11_error) __Pyx_GOTREF(__pyx_t_4); __pyx_t_1 = NULL; if (CYTHON_UNPACK_METHODS && unlikely(PyMethod_Check(__pyx_t_4))) { __pyx_t_1 = PyMethod_GET_SELF(__pyx_t_4); if (likely(__pyx_t_1)) { PyObject* function = PyMethod_GET_FUNCTION(__pyx_t_4); __Pyx_INCREF(__pyx_t_1); __Pyx_INCREF(function); __Pyx_DECREF_SET(__pyx_t_4, function); } } __pyx_t_2 = (__pyx_t_1) ? __Pyx_PyObject_Call2Args(__pyx_t_4, __pyx_t_1, __pyx_v_surface_) : __Pyx_PyObject_CallOneArg(__pyx_t_4, __pyx_v_surface_); __Pyx_XDECREF(__pyx_t_1); __pyx_t_1 = 0; if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 5084, __pyx_L11_error) __Pyx_GOTREF(__pyx_t_2); __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0; __pyx_v_gpu_array = __pyx_t_2; __pyx_t_2 = 0;
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__pyx_t_13 = __Pyx_PyErr_ExceptionMatches(((PyObject *)(&((PyTypeObject*)PyExc_Exception)[0]))); if (__pyx_t_13) { __Pyx_AddTraceback("PygameShader.shader_gpu.zoom_gpu", __pyx_clineno, __pyx_lineno, __pyx_filename); if (__Pyx_GetException(&__pyx_t_2, &__pyx_t_4, &__pyx_t_1) < 0) __PYX_ERR(0, 5086, __pyx_L13_except_error) __Pyx_GOTREF(__pyx_t_2); __Pyx_GOTREF(__pyx_t_4); __Pyx_GOTREF(__pyx_t_1); __Pyx_INCREF(__pyx_t_4); __pyx_v_e = __pyx_t_4; /*try:*/ { /* … */ /*finally:*/ { __pyx_L22_error:; /*exception exit:*/{ __Pyx_PyThreadState_declare __Pyx_PyThreadState_assign __pyx_t_17 = 0; __pyx_t_18 = 0; __pyx_t_19 = 0; __pyx_t_20 = 0; __pyx_t_21 = 0; __pyx_t_22 = 0; __Pyx_XDECREF(__pyx_t_14); __pyx_t_14 = 0; __Pyx_XDECREF(__pyx_t_5); __pyx_t_5 = 0; if (PY_MAJOR_VERSION >= 3) __Pyx_ExceptionSwap(&__pyx_t_20, &__pyx_t_21, &__pyx_t_22); if ((PY_MAJOR_VERSION < 3) || unlikely(__Pyx_GetException(&__pyx_t_17, &__pyx_t_18, &__pyx_t_19) < 0)) __Pyx_ErrFetch(&__pyx_t_17, &__pyx_t_18, &__pyx_t_19); __Pyx_XGOTREF(__pyx_t_17); __Pyx_XGOTREF(__pyx_t_18); __Pyx_XGOTREF(__pyx_t_19); __Pyx_XGOTREF(__pyx_t_20); __Pyx_XGOTREF(__pyx_t_21); __Pyx_XGOTREF(__pyx_t_22); __pyx_t_13 = __pyx_lineno; __pyx_t_15 = __pyx_clineno; __pyx_t_16 = __pyx_filename; { __Pyx_DECREF(__pyx_v_e); __pyx_v_e = NULL; } if (PY_MAJOR_VERSION >= 3) { __Pyx_XGIVEREF(__pyx_t_20); __Pyx_XGIVEREF(__pyx_t_21); __Pyx_XGIVEREF(__pyx_t_22); __Pyx_ExceptionReset(__pyx_t_20, __pyx_t_21, __pyx_t_22); } __Pyx_XGIVEREF(__pyx_t_17); __Pyx_XGIVEREF(__pyx_t_18); __Pyx_XGIVEREF(__pyx_t_19); __Pyx_ErrRestore(__pyx_t_17, __pyx_t_18, __pyx_t_19); __pyx_t_17 = 0; __pyx_t_18 = 0; __pyx_t_19 = 0; __pyx_t_20 = 0; __pyx_t_21 = 0; __pyx_t_22 = 0; __pyx_lineno = __pyx_t_13; __pyx_clineno = __pyx_t_15; __pyx_filename = __pyx_t_16; goto __pyx_L13_except_error; } } } goto __pyx_L13_except_error; __pyx_L13_except_error:;
+5087: raise ValueError("\nCannot reference source pixels into a 3d array.\n %s " % e)
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5088:
+5089: return zoom_cupy(cupy.asarray(gpu_array),
__Pyx_XDECREF(__pyx_r); __Pyx_GetModuleGlobalName(__pyx_t_4, __pyx_n_s_cupy); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 5089, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_4); __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_t_4, __pyx_n_s_asarray); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 5089, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_2); __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0; __pyx_t_4 = NULL; if (CYTHON_UNPACK_METHODS && unlikely(PyMethod_Check(__pyx_t_2))) { __pyx_t_4 = PyMethod_GET_SELF(__pyx_t_2); if (likely(__pyx_t_4)) { PyObject* function = PyMethod_GET_FUNCTION(__pyx_t_2); __Pyx_INCREF(__pyx_t_4); __Pyx_INCREF(function); __Pyx_DECREF_SET(__pyx_t_2, function); } } __pyx_t_1 = (__pyx_t_4) ? __Pyx_PyObject_Call2Args(__pyx_t_2, __pyx_t_4, __pyx_v_gpu_array) : __Pyx_PyObject_CallOneArg(__pyx_t_2, __pyx_v_gpu_array); __Pyx_XDECREF(__pyx_t_4); __pyx_t_4 = 0; if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 5089, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_1); __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0; /* … */ __pyx_t_23.__pyx_n = 1; __pyx_t_23.zoom = __pyx_v_zoom; __pyx_t_2 = __pyx_f_12PygameShader_10shader_gpu_zoom_cupy(__pyx_t_1, __pyx_v_grid_, __pyx_v_block_, __pyx_v_delta_x, __pyx_v_delta_y, &__pyx_t_23); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 5089, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_2); __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0; __pyx_r = __pyx_t_2; __pyx_t_2 = 0; goto __pyx_L0;
5090: grid_, block_, delta_x, delta_y, zoom)
5091:
+5092: zoom_kernel = cp.RawKernel(
__Pyx_GetModuleGlobalName(__pyx_t_2, __pyx_n_s_cp); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 5092, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_2); __pyx_t_10 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_RawKernel); if (unlikely(!__pyx_t_10)) __PYX_ERR(0, 5092, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_10); __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0; __pyx_t_2 = __Pyx_PyObject_Call(__pyx_t_10, __pyx_tuple__79, NULL); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 5092, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_2); __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0; if (PyDict_SetItem(__pyx_d, __pyx_n_s_zoom_kernel, __pyx_t_2) < 0) __PYX_ERR(0, 5092, __pyx_L1_error) __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0; /* … */ __pyx_tuple__79 = PyTuple_Pack(2, __pyx_kp_u_extern_C___global___void_zoom_k, __pyx_n_u_zoom_kernel); if (unlikely(!__pyx_tuple__79)) __PYX_ERR(0, 5092, __pyx_L1_error) __Pyx_GOTREF(__pyx_tuple__79); __Pyx_GIVEREF(__pyx_tuple__79);
5093:
5094: '''
5095:
5096: extern "C"
5097:
5098: __global__ void zoom_kernel(unsigned char * destination, unsigned char * source,
5099: const int w, const int h, int delta_x, int delta_y, double zoom)
5100: {
5101:
5102: unsigned int i = blockIdx.x * blockDim.x + threadIdx.x;
5103: unsigned int j = blockIdx.y * blockDim.y + threadIdx.y;
5104:
5105: int index1 = j * h * 3 + i * 3;
5106: const unsigned int t_max = w * h * 3;
5107: unsigned char local_memory[3];
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5109: const float dh = (float)delta_y/(float)h;
5110:
5111: float nx = float((float)i / (float)h) - dh;
5112: float ny = float((float)j / (float)w) - dw;
5113:
5114: float theta = (float)atan2 (ny,nx);
5115:
5116: float nx2 = nx * nx;
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5118:
5119: float dist = (float)sqrt(nx2 + ny2);
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5129: const int b = new_j * h * 3 + new_i * 3 + 2;
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int __pyx_n;
float zoom;
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5175:
5176: # ---------------------------------------------------------------------------------------------------------------
5177:
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5235: object surface_,
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5238: unsigned short int layer_=0
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5241: CONVERT AN IMAGE TO AN EQUIVALENT REDSCALE | GREENSCALE | BLUESCALE EFFECT
5242:
5243:
5244: :param layer_ : integer; 0:red channel, 1:green, 2:blue
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5249: Max threads = block_x * block_y
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goto __pyx_L1_error;
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+5263: gpu_array = pixels3d(surface_)
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5269:
5270:
+5271: wavelength_map_kernel = cp.RawKernel(
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5272:
5273: '''
5274: extern "C"
5275:
5276: __global__ void wavelength_map_kernel(unsigned char * destination, unsigned char * source, unsigned char * map,
5277: double map_c, const int w, const int h)
5278: {
5279:
5280: unsigned int i = blockIdx.x * blockDim.x + threadIdx.x;
5281: unsigned int j = blockIdx.y * blockDim.y + threadIdx.y;
5282:
5283: int index1 = j * h * 3 + i * 3;
5284:
5285: unsigned int s = source[index1 + 0] + source[index1 + 1] + source[index1 + 2];
5286: unsigned int index = (unsigned int)((float)s * map_c);
5287:
5288: if (i < h && j < w) {
5289:
5290: __syncthreads();
5291:
5292: destination[index1 + 0] = (unsigned char)map[index * 3 + 0];
5293: destination[index1 + 1] = (unsigned char)map[index * 3 + 1];
5294: destination[index1 + 2] = (unsigned char)map[index * 3 + 2];
5295: }
5296: }
5297: ''',
5298: 'wavelength_map_kernel'
5299: )
5300:
5301: @cython.boundscheck(False)
5302: @cython.wraparound(False)
5303: @cython.nonecheck(False)
5304: @cython.cdivision(True)
5305: @cython.profile(False)
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+5406: "\nArgument surface_ must be a pygame.Surface type, got %s " % type(surface_)
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5408: cdef Py_ssize_t w, h
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5410:
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/* … */
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goto __pyx_L1_error;
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}
+5415: rgb_array = pixels3d(surface_)
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5416:
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5421:
+5422: heatmap_kernel = cp.RawKernel(
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5423:
5424: '''
5425: extern "C"
5426:
5427: __global__ void heatmap_kernel(unsigned char * destination, unsigned char * source, unsigned char * map,
5428: double map_c, bool invert, const int w, const int h)
5429: {
5430:
5431: unsigned int i = blockIdx.x * blockDim.x + threadIdx.x;
5432: unsigned int j = blockIdx.y * blockDim.y + threadIdx.y;
5433:
5434: int index1 = j * h * 3 + i * 3;
5435:
5436: unsigned int s = source[index1 + 0] + source[index1 + 1] + source[index1 + 2];
5437: unsigned int index = (unsigned int)((float)s * map_c);
5438:
5439: if (i < h && j < w) {
5440:
5441: __syncthreads();
5442: if (invert == 1){
5443: destination[index1 + 0] = (unsigned char)map[index * 3 + 0];
5444: destination[index1 + 1] = (unsigned char)map[index * 3 + 1];
5445: destination[index1 + 2] = (unsigned char)map[index * 3 + 2];
5446: }
5447: else {
5448: destination[index1 + 0] = (unsigned char)map[index * 3 + 2];
5449: destination[index1 + 1] = (unsigned char)map[index * 3 + 1];
5450: destination[index1 + 2] = (unsigned char)map[index * 3 + 0];
5451: }
5452: }
5453: }
5454: ''',
5455: 'heatmap_kernel'
5456: )
5457:
5458: @cython.boundscheck(False)
5459: @cython.wraparound(False)
5460: @cython.nonecheck(False)
5461: @cython.cdivision(True)
5462: @cython.profile(False)
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5464: object gpu_array,
5465: rgb_array,
5466: object grid_,
5467: object block_,
5468: bint invert_
5469: ):
5470: cdef:
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unsigned int bloom_smooth;
unsigned int bloom_threshold;
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5585:
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5596:
5597: # cpu_arr = cp.asnumpy(gpu_array)
5598: # shader_rgb_to_yiq_q_comp_inplace_c(cpu_arr)
5599: # gpu_array = cp.asarray(cpu_arr)
5600:
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5606:
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5609:
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5611:
5612:
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5614:
5615:
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5617: @cython.wraparound(False)
5618: @cython.nonecheck(False)
5619: @cython.cdivision(True)
5620: @cython.profile(False)
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5622: object surface_,
5623: object grid_,
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PyErr_SetObject(PyExc_AssertionError, __pyx_kp_u_Image_width_cannot_be_null);
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goto __pyx_L6_bool_binop_done;
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/* … */
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/* … */
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goto __pyx_L13_try_end;
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__Pyx_XDECREF(__pyx_t_2); __pyx_t_2 = 0;
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/* … */
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__Pyx_XGIVEREF(__pyx_t_11);
__Pyx_XGIVEREF(__pyx_t_12);
__Pyx_ExceptionReset(__pyx_t_10, __pyx_t_11, __pyx_t_12);
goto __pyx_L1_error;
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+5643: gpu_array = pixels3d(surface_)
__Pyx_GetModuleGlobalName(__pyx_t_4, __pyx_n_s_pixels3d); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 5643, __pyx_L8_error) __Pyx_GOTREF(__pyx_t_4); __pyx_t_1 = NULL; if (CYTHON_UNPACK_METHODS && unlikely(PyMethod_Check(__pyx_t_4))) { __pyx_t_1 = PyMethod_GET_SELF(__pyx_t_4); if (likely(__pyx_t_1)) { PyObject* function = PyMethod_GET_FUNCTION(__pyx_t_4); __Pyx_INCREF(__pyx_t_1); __Pyx_INCREF(function); __Pyx_DECREF_SET(__pyx_t_4, function); } } __pyx_t_2 = (__pyx_t_1) ? __Pyx_PyObject_Call2Args(__pyx_t_4, __pyx_t_1, __pyx_v_surface_) : __Pyx_PyObject_CallOneArg(__pyx_t_4, __pyx_v_surface_); __Pyx_XDECREF(__pyx_t_1); __pyx_t_1 = 0; if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 5643, __pyx_L8_error) __Pyx_GOTREF(__pyx_t_2); __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0; __pyx_v_gpu_array = __pyx_t_2; __pyx_t_2 = 0;
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5649: grid_, block_, zoom, w2, h2)
5650:
+5651: downscale_surface_kernel = cp.RawKernel(
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5652:
5653: '''
5654:
5655: extern "C"
5656:
5657: __global__ void downscale_surface_kernel(unsigned char * destination, unsigned char * source,
5658: const int w, const int h, const int w2, const int h2)
5659: {
5660:
5661: unsigned int i = blockIdx.x * blockDim.x + threadIdx.x;
5662: unsigned int j = blockIdx.y * blockDim.y + threadIdx.y;
5663:
5664: float rj = (float)h2/(float)h;
5665:
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5723:
5724:
5725:
5726:
5727:
5728:
5729:
5730:
5731:
5732:
5733:
5734:
5735:
5736:
5737:
5738:
5739:
5740:
5741:
5742:
5743: #
5744: #
5745: # cpdef inline object pixelation_gpu(
5746: # object surface_,
5747: # unsigned int kernel_size,
5748: # object grid_,
5749: # object block_
5750: # ):
5751: #
5752: #
5753: # assert PyObject_IsInstance(surface_, pygame.Surface), \
5754: # "\nArgument surface_ must be a pygame.Surface type, got %s " % type(surface_)
5755: #
5756: # try:
5757: # gpu_array = pixels3d(surface_)
5758: #
5759: # except Exception as e:
5760: # raise ValueError("\nCannot reference source pixels into a 3d array.\n %s " % e)
5761: #
5762: # return pixelation_cupy(cupy.asarray(gpu_array), kernel_size, grid_, block_)
5763: #
5764: #
5765: #
5766: # pixelation_kernel = cp.RawKernel(
5767: # '''
5768: # extern "C"
5769: #
5770: # __global__ void pixelation_kernel(double* buffer, int filter_size,
5771: # double* return_value)
5772: # {
5773: #
5774: # float sum_ = 0.0;
5775: #
5776: # for (int i=0; i<filter_size; ++i){
5777: # sum_ += buffer[i];
5778: # }
5779: #
5780: # return_value[0] = sum_/filter_size;
5781: #
5782: # }
5783: # ''',
5784: # 'pixelation_kernel'
5785: # )
5786: #
5787: #
5788: # @cython.boundscheck(False)
5789: # @cython.wraparound(False)
5790: # @cython.nonecheck(False)
5791: # @cython.cdivision(True)
5792: # cdef inline pixelation_cupy(
5793: # object gpu_array, unsigned int kernel_size, object grid_, object block_):
5794: # cdef:
5795: # Py_ssize_t w, h
5796: # w, h = gpu_array.shape[:2]
5797: #
5798: # destination = cupy.empty((w, h, 3), dtype=cupy.uint8)
5799: #
5800: # r = gpu_array[:, :, 0]
5801: #
5802: # px_r = cupyx.scipy.ndimage.generic_filter(
5803: # r, pixelation_kernel, (10, 10)).astype(dtype=cp.uint8)
5804: #
5805: # destination[:, :, 0] = px_r
5806: # destination[:, :, 1] = px_r
5807: # destination[:, :, 2] = px_r
5808: #
5809: # cp.cuda.Stream.null.synchronize()
5810: #
5811: # return frombuffer(destination.transpose(1, 0, 2).tobytes(), (w, h), "RGB").convert()
5812: #
5813: #
5814: #
5815: #
5816:
5817:
5818:
5819:
5820:
5821:
5822:
5823:
5824:
5825:
5826: #
5827: # cpdef inline object glitch_gpu(object surface_, float angle_, float amplitude_,object grid_, object block_):
5828: #
5829: #
5830: # assert PyObject_IsInstance(surface_, pygame.Surface), \
5831: # "\nArgument surface_ must be a pygame.Surface type, got %s " % type(surface_)
5832: #
5833: # try:
5834: # gpu_array = pixels3d(surface_)
5835: #
5836: # except Exception as e:
5837: # raise ValueError("\nCannot reference source pixels into a 3d array.\n %s " % e)
5838: #
5839: # return glitch_cupy(cupy.asarray(gpu_array), angle_, amplitude_, grid_, block_)
5840: #
5841: #
5842: # glitch_kernel = cp.RawKernel(
5843: #
5844: # '''
5845: # #include <cstdlib.h>
5846: #
5847: # extern "C" __global__
5848: #
5849: # void glitch_kernel(unsigned char * destination, unsigned char * source,
5850: # double angle_, double amplitude_, const int w, const int h)
5851: # {
5852: #
5853: # unsigned int i = blockIdx.x * blockDim.x + threadIdx.x;
5854: # unsigned int j = blockIdx.y * blockDim.y + threadIdx.y;
5855: #
5856: # const int index1 = j * h * 3 + i * 3;
5857: #
5858: #
5859: # if (i < h && j < w) {
5860: #
5861: # angle_ = angle_ + rand() * i;
5862: #
5863: # int ii = (i + (int)((float)cos(angle_) * amplitude_));
5864: # if (ii > (int)w - 1){
5865: # ii = (int)w - 1;
5866: # }
5867: # if (ii < 0){
5868: # ii = 0;
5869: # }
5870: #
5871: # int index2 = j * h * 3 + ii * 3;
5872: #
5873: # destination[index1 + 0] = source[index2 + 0];
5874: # destination[index1 + 1] = source[index2 + 1];
5875: # destination[index1 + 2] = source[index2 + 2];
5876: #
5877: # }
5878: #
5879: # }
5880: # ''',
5881: # 'glitch_kernel'
5882: # )
5883: #
5884: # @cython.boundscheck(False)
5885: # @cython.wraparound(False)
5886: # @cython.nonecheck(False)
5887: # @cython.cdivision(True)
5888: # cdef inline glitch_cupy(
5889: # object gpu_array, float angle_, float amplitude_,
5890: # object grid_, object block_
5891: # ):
5892: # cdef:
5893: # Py_ssize_t w, h
5894: # w, h = gpu_array.shape[:2]
5895: #
5896: # destination = cupy.empty((w, h, 3), dtype=cupy.uint8)
5897: #
5898: #
5899: #
5900: # glitch_kernel(
5901: # grid_,
5902: # block_,
5903: # (destination, gpu_array, angle_, amplitude_, w, h)
5904: # )
5905: #
5906: # cp.cuda.Stream.null.synchronize()
5907: #
5908: # return frombuffer(destination.transpose(1, 0, 2).tobytes(), (w, h), "RGB").convert()
5909: #
5910: # # ---------------------------------------------------------------------------------------------------------------
5911: #
5912:
5913:
5914: #
5915: #
5916: #
5917: # source=r'''
5918: # extern "C"{
5919: # __global__ void copyKernel(float* output,
5920: # cudaTextureObject_t texObj,
5921: # int width, int height)
5922: # {
5923: # unsigned int x = blockIdx.x * blockDim.x + threadIdx.x;
5924: # unsigned int y = blockIdx.y * blockDim.y + threadIdx.y;
5925: # unsigned int z = blockIdx.z * blockDim.z + threadIdx.z;
5926: #
5927: # // Read from texture and write to global memory
5928: # float u = x;
5929: # float v = y;
5930: # float w = z;
5931: # if (x < width && y < height && z < 3)
5932: # output[z * width * height + y * width + x] = tex3D<float>(texObj, u, v, w);
5933: # }
5934: # }
5935: # '''
5936: #
5937: # cpdef test(image, grid, block):
5938: #
5939: # width, height = image.get_size()
5940: # depth = 3
5941: #
5942: # ch = cp.cuda.texture.ChannelFormatDescriptor(32, 0, 0, 0, cp.cuda.runtime.cudaChannelFormatKindFloat)
5943: # arr2 = cp.cuda.texture.CUDAarray(ch, width, height, depth)
5944: # res = cp.cuda.texture.ResourceDescriptor(cp.cuda.runtime.cudaResourceTypeArray, cuArr=arr2)
5945: # tex = cp.cuda.texture.TextureDescriptor((cp.cuda.runtime.cudaAddressModeClamp, cp.cuda.runtime.cudaAddressModeClamp),
5946: # cp.cuda.runtime.cudaFilterModePoint,
5947: # cp.cuda.runtime.cudaReadModeElementType)
5948: # texobj = cp.cuda.texture.TextureObject(res, tex)
5949: #
5950: # tex_data = cupy.asarray(pixels3d(image)).astype(dtype=cupy.float32).reshape(3, height, width)
5951: #
5952: # real_output = cp.zeros_like(tex_data)
5953: # expected_output = cp.zeros_like(tex_data)
5954: #
5955: # arr2.copy_from(tex_data)
5956: # arr2.copy_to(expected_output)
5957: #
5958: # ker = cp.RawKernel(source, 'copyKernel')
5959: #
5960: #
5961: # ker((grid[1], grid[0], 3), (block[1], block[0], 1), (real_output, texobj, width, height))
5962: #
5963: # # return make_surface(cupy.asnumpy(real_output).reshape((800, 800, 3)).astype(dtype=cupy.uint8))
5964: # return frombuffer(real_output.astype(
5965: # dtype=cupy.uint8).reshape((width, height, 3)).transpose(1, 0, 2).tobytes(), (width, height), "RGB").convert()
5966: #
5967: # source_surfobj = r"""
5968: # extern "C" {
5969: # __global__ void writeKernel3D(cudaSurfaceObject_t surf,
5970: # int width, int height, int depth)
5971: # {
5972: # unsigned int w = blockIdx.x * blockDim.x + threadIdx.x;
5973: # unsigned int h = blockIdx.y * blockDim.y + threadIdx.y;
5974: # unsigned int z = blockIdx.z * blockDim.z + threadIdx.z;
5975: # if (w < width && h < height && z < depth)
5976: # {
5977: # float value = z * width * height + h * width + w;
5978: # value *= 3.0;
5979: # surf3Dwrite(value, surf, w*4, h, z);
5980: # }
5981: # }
5982: # }
5983: # """
5984: #
5985: # from cupy.cuda import runtime
5986: # from cupy.cuda.texture import (ChannelFormatDescriptor, CUDAarray,
5987: # ResourceDescriptor, TextureDescriptor,
5988: # TextureObject, TextureReference,
5989: # SurfaceObject)
5990: #
5991: #
5992: # cpdef test_write_float_surface(image):
5993: #
5994: #
5995: # width, height, depth = 800, 800, 3
5996: #
5997: # shape = (depth, height, width)
5998: #
5999: # real_output = cupy.zeros(shape, dtype=cupy.float32)
6000: #
6001: # ch = ChannelFormatDescriptor(32, 0, 0, 0,
6002: # runtime.cudaChannelFormatKindFloat)
6003: #
6004: # # expected_output = cupy.arange(numpy.prod(shape), dtype=cupy.float32)
6005: # # expected_output = expected_output.reshape(shape) * 3.0
6006: #
6007: # expected_output = cupy.asarray(pixels3d(image), dtype=cupy.float32).reshape(shape)
6008: # expected_output *= 3.0
6009: #
6010: # arr = CUDAarray(ch, width, height, depth,
6011: # runtime.cudaArraySurfaceLoadStore)
6012: #
6013: # arr.copy_from(real_output)
6014: # res = ResourceDescriptor(runtime.cudaResourceTypeArray, cuArr=arr)
6015: #
6016: # surfobj = SurfaceObject(res)
6017: # mod = cupy.RawModule(code=source_surfobj)
6018: #
6019: #
6020: # ker = mod.get_function("writeKernel3D")
6021: # block = (25, 25, 3)
6022: # grid = (32, 32, 1)
6023: #
6024: # ker(block,
6025: # grid,
6026: # (surfobj, width, height, depth))
6027: #
6028: # arr.copy_to(real_output)
6029: # print(real_output.shape, expected_output.shape)
6030: # # return make_surface(cupy.asnumpy(real_output.reshape((800, 800, 3))).astype(dtype=numpy.uint8))
6031: # assert (real_output == expected_output).all()