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d240f623f1
2001-05-15 Michael Natterer <mitch@gimp.org> * configure.in: new directory app/base/ * app/Makefile.am * app/boundary.[ch] * app/brush_scale.[ch] * app/gimpchecks.h * app/gimplut.[ch] * app/pixel_processor.[ch] * app/pixel_region.[ch] * app/pixel_surround.[ch] * app/temp_buf.[ch] * app/tile.[ch] * app/tile_cache.[ch] * app/tile_manager.[ch] * app/tile_manager_pvt.h * app/tile_pvt.h * app/tile_swap.[ch]: moved to base/ * app/base/Makefile.am * app/base/base-types.h * app/base/*: new directory for the sub-object pixel maniplation and storage stuff. Does not include Gtk+ or anything outside base/. Did some cleanup in all files. * app/appenums.h * app/apptypes.h * app/core/gimpimage.h: removed types which are now in base/base-types.h. * app/base/base-config.[ch] * app/gimprc.[ch]: put the config variables for base/ to their own file so base/ doesn not have to include gimprc.h (does not yet work, i.e. the variables are un-configurable right now) * app/main.c: set a log handler for "Gimp-Base". * app/paint-funcs/Makefile.am * app/paint-funcs/paint-funcs.[ch]: removed the color hash which maps RGB to color indices because it's a totally standalone system which has nothing to do with the paint-funcs and introduced a GimpImage dependency. paint-funcs/ should be considered on the same sub-object (glib-only) level as base/, only in a different directory. * app/core/Makefile.am * app/core/gimpimage-colorhash.[ch]: put the color hash here. * app/gimage.c: don't invalidate the color hash here... * app/core/gimpimage.c: ... but in the colormap_changed() default inplementation. Initialize the hash in class_init(). * tools/pdbgen/Makefile.am: scan app/base/base-types.h for enums. * tools/pdbgen/enums.pl: regenerated. * app/[lots] * app/core/[of] * app/gui/[files] * app/pdb/[all] * app/tools/[over] * app/widgets/[the] * tools/pdbgen/pdb/[place]: changed #includes accordingly. And use base_config->value instead of the stuff from gimprc.h.
269 lines
5.2 KiB
C
269 lines
5.2 KiB
C
/* The GIMP -- an image manipulation program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* gimplut.c: Copyright (C) 1999 Jay Cox <jaycox@earthlink.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include <stdio.h>
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#include <glib.h>
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#include "base-types.h"
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#include "gimplut.h"
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#include "pixel-region.h"
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GimpLut *
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gimp_lut_new (void)
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{
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GimpLut *lut;
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lut = g_new (GimpLut, 1);
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lut->luts = NULL;
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lut->nchannels = 0;
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return lut;
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}
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void
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gimp_lut_free (GimpLut *lut)
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{
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gint i;
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for (i = 0; i < lut->nchannels; i++)
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g_free (lut->luts[i]);
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g_free (lut->luts);
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}
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void
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gimp_lut_setup (GimpLut *lut,
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GimpLutFunc func,
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void *user_data,
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gint nchannels)
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{
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gint i, v;
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gdouble val;
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if (lut->luts)
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{
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for (i = 0; i < lut->nchannels; i++)
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g_free (lut->luts[i]);
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g_free (lut->luts);
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}
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lut->nchannels = nchannels;
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lut->luts = g_new (guchar *, lut->nchannels);
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for (i = 0; i < lut->nchannels; i++)
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{
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lut->luts[i] = g_new (guchar, 256);
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for (v = 0; v < 256; v++)
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{
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/* to add gamma correction use func(v ^ g) ^ 1/g instead. */
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val = 255.0 * func (user_data, lut->nchannels, i, v/255.0) + 0.5;
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if (val < 0.0)
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lut->luts[i][v] = 0;
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else if (val >= 255.0)
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lut->luts[i][v] = 255;
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else
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lut->luts[i][v] = val;
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}
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}
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}
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void
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gimp_lut_setup_exact (GimpLut *lut,
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GimpLutFunc func,
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void *user_data,
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gint nchannels)
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{
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gimp_lut_setup (lut, func, user_data, nchannels);
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}
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void
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gimp_lut_process (GimpLut *lut,
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PixelRegion *srcPR,
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PixelRegion *destPR)
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{
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gint h, width, src_r_i, dest_r_i;
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guchar *src, *dest;
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guchar *lut0 = NULL, *lut1 = NULL, *lut2 = NULL, *lut3 = NULL;
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if (lut->nchannels > 0)
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lut0 = lut->luts[0];
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if (lut->nchannels > 1)
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lut1 = lut->luts[1];
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if (lut->nchannels > 2)
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lut2 = lut->luts[2];
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if (lut->nchannels > 3)
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lut3 = lut->luts[3];
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h = srcPR->h;
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src = srcPR->data;
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dest = destPR->data;
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width = srcPR->w;
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src_r_i = srcPR->rowstride - (srcPR->bytes * srcPR->w);
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dest_r_i = destPR->rowstride - (destPR->bytes * srcPR->w);
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if (src_r_i == 0 && dest_r_i == 0)
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{
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width *= h;
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h = 1;
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}
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while (h--)
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{
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switch (lut->nchannels)
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{
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case 1:
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while (width--)
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{
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*dest = lut0[*src];
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src++;
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dest++;
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}
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break;
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case 2:
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while (width--)
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{
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dest[0] = lut0[src[0]];
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dest[1] = lut1[src[1]];
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src += 2;
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dest += 2;
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}
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break;
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case 3:
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while (width--)
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{
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dest[0] = lut0[src[0]];
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dest[1] = lut1[src[1]];
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dest[2] = lut2[src[2]];
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src += 3;
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dest += 3;
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}
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break;
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case 4:
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while (width--)
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{
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dest[0] = lut0[src[0]];
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dest[1] = lut1[src[1]];
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dest[2] = lut2[src[2]];
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dest[3] = lut3[src[3]];
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src += 4;
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dest += 4;
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}
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break;
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default:
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g_warning ("gimplut: Error: nchannels = %d\n", lut->nchannels);
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}
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width = srcPR->w;
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src += src_r_i;
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dest += dest_r_i;
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}
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}
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void
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gimp_lut_process_inline (GimpLut *lut,
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PixelRegion *srcPR)
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{
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gint h, width, src_r_i;
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guchar *src;
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guchar *lut0 = NULL, *lut1 = NULL, *lut2 = NULL, *lut3 = NULL;
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if (lut->nchannels > 0)
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lut0 = lut->luts[0];
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if (lut->nchannels > 1)
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lut1 = lut->luts[1];
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if (lut->nchannels > 2)
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lut2 = lut->luts[2];
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if (lut->nchannels > 3)
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lut3 = lut->luts[3];
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h = srcPR->h;
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src = srcPR->data;
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width = srcPR->w;
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src_r_i = srcPR->rowstride - (srcPR->bytes * srcPR->w);
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if (src_r_i == 0)
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{
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width *= h;
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h = 1;
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}
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while (h--)
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{
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switch (lut->nchannels)
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{
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case 1:
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while (width--)
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{
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*src = lut0[*src];
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src++;
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}
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break;
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case 2:
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while (width--)
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{
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src[0] = lut0[src[0]];
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src[1] = lut1[src[1]];
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src += 2;
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}
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break;
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case 3:
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while (width--)
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{
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src[0] = lut0[src[0]];
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src[1] = lut1[src[1]];
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src[2] = lut2[src[2]];
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src += 3;
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}
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break;
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case 4:
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while (width--)
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{
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src[0] = lut0[src[0]];
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src[1] = lut1[src[1]];
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src[2] = lut2[src[2]];
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src[3] = lut3[src[3]];
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src += 4;
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}
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break;
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default:
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g_warning ("gimplut: Error: nchannels = %d\n", lut->nchannels);
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}
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width = srcPR->w;
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src += src_r_i;
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}
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}
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void
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gimp_lut_process_2 (PixelRegion *srcPR,
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PixelRegion *destPR,
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GimpLut *lut)
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{
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gimp_lut_process (lut, srcPR, destPR);
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}
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