gimp/app/paint_core_kernels.h
Sven Neumann 9529e1e696 app/Makefile.am app/paint_core.c moved brush subsampling kernels into its
2000-05-29  Sven Neumann  <sven@gimp.org>

        * app/Makefile.am
        * app/paint_core.c
        * app/paint_core_kernels.h: moved brush subsampling kernels
        into its own header file and generated a slightly different
        kernel (using the new kernelgen tool, see below). The new
        kernel simulates a circular brush instead of a rectangular
        one and gives slightly different (lighter) results.

        * app/gimage_mask.c: when stroking a selection, offset the
        points by 0.5 to align the brushes with the pixel grid. This
        lets you create 1-pixel wide rectangles and ellipses.

        * tools/Makefile.am
        * tools/kernelgen.c: simple hack to generate subsampling
        kernels.
2000-05-29 08:40:29 +00:00

50 lines
1.6 KiB
C

/* paint_core_kernels.h
*
* This file was generated using kernelgen as found in the tools dir.
* (threshold = 0.25)
*/
#define KERNEL_WIDTH 3
#define KERNEL_HEIGHT 3
#define SUBSAMPLE 4
/* Brush pixel subsampling kernels */
static const int subsample[5][5][9] = {
{
{ 64, 64, 0, 64, 64, 0, 0, 0, 0, },
{ 25, 102, 0, 25, 102, 0, 0, 0, 0, },
{ 0, 128, 0, 0, 128, 0, 0, 0, 0, },
{ 0, 102, 25, 0, 102, 25, 0, 0, 0, },
{ 0, 64, 64, 0, 64, 64, 0, 0, 0, }
},
{
{ 25, 25, 0, 102, 102, 0, 0, 0, 0, },
{ 6, 43, 0, 43, 162, 0, 0, 0, 0, },
{ 0, 50, 0, 0, 205, 0, 0, 0, 0, },
{ 0, 43, 6, 0, 162, 43, 0, 0, 0, },
{ 0, 25, 25, 0, 102, 102, 0, 0, 0, }
},
{
{ 0, 0, 0, 128, 128, 0, 0, 0, 0, },
{ 0, 0, 0, 50, 205, 0, 0, 0, 0, },
{ 0, 0, 0, 0, 256, 0, 0, 0, 0, },
{ 0, 0, 0, 0, 205, 50, 0, 0, 0, },
{ 0, 0, 0, 0, 128, 128, 0, 0, 0, }
},
{
{ 0, 0, 0, 102, 102, 0, 25, 25, 0, },
{ 0, 0, 0, 43, 162, 0, 6, 43, 0, },
{ 0, 0, 0, 0, 205, 0, 0, 50, 0, },
{ 0, 0, 0, 0, 162, 43, 0, 43, 6, },
{ 0, 0, 0, 0, 102, 102, 0, 25, 25, }
},
{
{ 0, 0, 0, 64, 64, 0, 64, 64, 0, },
{ 0, 0, 0, 25, 102, 0, 25, 102, 0, },
{ 0, 0, 0, 0, 128, 0, 0, 128, 0, },
{ 0, 0, 0, 0, 102, 25, 0, 102, 25, },
{ 0, 0, 0, 0, 64, 64, 0, 64, 64, }
}
};