diff options
Diffstat (limited to 'libglitter_colour_space_convert_rasters_double.c')
-rw-r--r-- | libglitter_colour_space_convert_rasters_double.c | 89 |
1 files changed, 0 insertions, 89 deletions
diff --git a/libglitter_colour_space_convert_rasters_double.c b/libglitter_colour_space_convert_rasters_double.c deleted file mode 100644 index 8fa497e..0000000 --- a/libglitter_colour_space_convert_rasters_double.c +++ /dev/null @@ -1,89 +0,0 @@ -/* See LICENSE file for copyright and license details. */ -#include "common.h" -#ifndef TEST - - -static void -multiply_33(double **outputs, size_t opos, const double **inputs, size_t ipos, const double matrix[3][3]) -{ - double i0 = inputs[0][ipos], i1 = inputs[1][ipos], i2 = inputs[2][ipos]; - outputs[0][opos] = i0 * matrix[0][0] + i1 * matrix[0][1] + i2 * matrix[0][2]; - outputs[1][opos] = i0 * matrix[1][0] + i1 * matrix[1][1] + i2 * matrix[1][2]; - outputs[2][opos] = i0 * matrix[2][0] + i1 * matrix[2][1] + i2 * matrix[2][2]; -} - - -static void -multiply_nn(size_t n, double **outputs, size_t opos, const double **inputs, size_t ipos, - const double matrix[n][n], double buffer[n]) -{ - size_t i, j; - for (j = 0; j < n; j++) - buffer[j] = inputs[j][ipos]; - for (i = 0; i < n; i++) { - outputs[i][opos] = buffer[0] * matrix[i][0]; - for (j = 1; j < n; j++) - outputs[i][opos] += buffer[j] * matrix[i][j]; - } -} - - -static void -multiply_nm(size_t n, size_t m, double **outputs /* m */, size_t opos, const double **inputs /* n */, - size_t ipos, const double matrix[n][m], double buffer[n]) -{ - size_t i, j; - for (j = 0; j < n; j++) - buffer[j] = inputs[j][ipos]; - for (i = 0; i < m; i++) { - outputs[i][opos] = buffer[0] * matrix[i][0]; - for (j = 1; j < n; j++) - outputs[i][opos] += buffer[j] * matrix[i][j]; - } -} - - -void -libglitter_colour_space_convert_rasters_double(size_t n, size_t m, double **outputs /* m */, const double **inputs /* n */, - size_t output_rowsize, size_t output_cellsize, size_t input_rowsize, - size_t input_cellsize, size_t width, size_t height, const double matrix[n][m]) -{ - size_t y, x, output_i, input_i, output_blanking, input_blanking; - double *buffer; - - output_blanking = (output_rowsize - width) * output_cellsize; - input_blanking = (input_rowsize - width) * input_cellsize; - output_i = 0; - input_i = 0; - - if (n == 3 && m == 3) { - for (y = 0; y < height; y++, output_i += output_blanking, input_i += input_blanking) - for (x = 0; x < width; x++, output_i += output_cellsize, input_i += input_cellsize) - multiply_33(outputs, output_i, inputs, input_i, matrix); - - } else if (n == m) { - buffer = alloca(n * sizeof(*buffer)); - for (y = 0; y < height; y++, output_i += output_blanking, input_i += input_blanking) - for (x = 0; x < width; x++, output_i += output_cellsize, input_i += input_cellsize) - multiply_nn(n, outputs, output_i, inputs, input_i, matrix, buffer); - - } else { - buffer = alloca(n * sizeof(*buffer)); - for (y = 0; y < height; y++, output_i += output_blanking, input_i += input_blanking) - for (x = 0; x < width; x++, output_i += output_cellsize, input_i += input_cellsize) - multiply_nm(n, m, outputs, output_i, inputs, input_i, matrix, buffer); - } -} - - -#else - - -int -main(void) -{ - return 0; /* TODO add test */ -} - - -#endif |