/* The GIMP -- an image manipulation program * Copyright (C) 1995 Spencer Kimball and Peter Mattis * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* * gaussian_blur_region no longer does combination; arguments changed * -- scott@poverty.bloomington.in.us, 16Oct97 */ #ifndef __PAINT_FUNCS_H__ #define __PAINT_FUNCS_H__ #include "apptypes.h" #include "pixel_region.h" #include "gimpimageF.h" /* Called initially to setup accelerated rendering features */ void paint_funcs_setup (void); void paint_funcs_free (void); /* Paint functions */ void color_pixels (unsigned char *dest, const unsigned char *color, int w, int bytes); void blend_pixels (const unsigned char *src1, const unsigned char *src2, unsigned char *dest, int blend, int w, int bytes, int has_alpha); void shade_pixels (const unsigned char *src, unsigned char *dest, const unsigned char *color, int blend, int w, int bytes, int has_alpha); void extract_alpha_pixels (const unsigned char *src, const unsigned char *mask, unsigned char *dest, int w, int bytes); void darken_pixels (const unsigned char *src1, const unsigned char *src2, unsigned char *dest, int length, int bytes1, int bytes2, int has_alpha1, int has_alpha2); void lighten_pixels (const unsigned char *src1, const unsigned char *src2, unsigned char *dest, int length, int bytes1, int bytes2, int has_alpha1, int has_alpha2); void hsv_only_pixels (const unsigned char *src1, const unsigned char *src2, unsigned char *dest, int mode, int length, int bytes1, int bytes2, int has_alpha1, int has_alpha2); void color_only_pixels (const unsigned char *src1, const unsigned char *src2, unsigned char *dest, int mode, int length, int bytes1, int bytes2, int has_alpha1, int has_alpha2); void multiply_pixels (const unsigned char *src1, const unsigned char *src2, unsigned char *dest, int length, int bytes1, int bytes2, int has_alpha1, int has_alpha2); void divide_pixels (const unsigned char *src1, const unsigned char *src2, unsigned char *dest, int length, int bytes1, int bytes2, int has_alpha1, int has_alpha2); void screen_pixels (const unsigned char *src1, const unsigned char *src2, unsigned char *dest, int length, int bytes1, int bytes2, int has_alpha1, int has_alpha2); void overlay_pixels (const unsigned char *src1, const unsigned char *src2, unsigned char *dest, int length, int bytes1, int bytes2, int has_alpha1, int has_alpha2); void add_pixels (const unsigned char *src1, const unsigned char *src2, unsigned char *dest, int length, int bytes1, int bytes2, int has_alpha1, int has_alpha2); void subtract_pixels (const unsigned char *src1, const unsigned char *src2, unsigned char *dest, int length, int bytes1, int bytes2, int has_alpha1, int has_alpha2); void difference_pixels (const unsigned char *src1, const unsigned char *src2, unsigned char *dest, int length, int bytes1, int bytes2, int has_alpha1, int has_alpha2); void dissolve_pixels (const unsigned char *src, unsigned char *dest, int x, int y, int opacity, int length, int sb, int db, int has_alpha); void swap_pixels (unsigned char *src, unsigned char *dest, int length); void scale_pixels (const unsigned char *src, unsigned char *dest, int length, int scale); void add_alpha_pixels (const unsigned char *src, unsigned char *dest, int length, int bytes); void flatten_pixels (const unsigned char *src, unsigned char *dest, const unsigned char *bg, int length, int bytes); void gray_to_rgb_pixels (const unsigned char *src, unsigned char *dest, int length, int bytes); /* apply the mask data to the alpha channel of the pixel data */ void apply_mask_to_alpha_channel (unsigned char *src, const unsigned char *mask, int opacity, int length, int bytes); /* combine the mask data with the alpha channel of the pixel data */ void combine_mask_and_alpha_channel (unsigned char *src, const unsigned char *mask, int opacity, int length, int bytes); /* copy gray pixels to intensity-alpha pixels. This function * essentially takes a source that is only a grayscale image and * copies it to the destination, expanding to RGB if necessary and * adding an alpha channel. (OPAQUE) */ void copy_gray_to_inten_a_pixels (const unsigned char *src, unsigned char *dest, int length, int bytes); /* lay down the initial pixels in the case of only one * channel being visible and no layers...In this singular * case, we want to display a grayscale image w/o transparency */ void initial_channel_pixels (const unsigned char *src, unsigned char *dest, int length, int bytes); /* lay down the initial pixels in the case of an indexed image. * This process obviously requires no composition */ void initial_indexed_pixels (const unsigned char *src, unsigned char *dest, const unsigned char *cmap, int length); /* lay down the initial pixels in the case of an indexed image. * This process obviously requires no composition */ void initial_indexed_a_pixels (const unsigned char *src, unsigned char *dest, const unsigned char *mask, const unsigned char *cmap, int opacity, int length); /* lay down the initial pixels for the base layer. * This process obviously requires no composition. */ void initial_inten_pixels (const unsigned char *src, unsigned char *dest, const unsigned char *mask, int opacity, const int *affect, int length, int bytes); /* lay down the initial pixels for the base layer. * This process obviously requires no composition. */ void initial_inten_a_pixels (const unsigned char *src, unsigned char *dest, const unsigned char *mask, int opacity, const int *affect, int length, int bytes); /* combine indexed images with an optional mask which * is interpreted as binary...destination is indexed... */ void combine_indexed_and_indexed_pixels (const unsigned char *src1, const unsigned char *src2, unsigned char *dest, const unsigned char *mask, int opacity, const int *affect, int length, int bytes); /* combine indexed images with indexed-alpha images * result is an indexed image */ void combine_indexed_and_indexed_a_pixels (const unsigned char *src1, const unsigned char *src2, unsigned char *dest, const unsigned char *mask, int opacity, const int *affect, int length, int bytes); /* combine indexed-alpha images with indexed-alpha images * result is an indexed-alpha image. use this for painting * to an indexed floating sel */ void combine_indexed_a_and_indexed_a_pixels(const unsigned char *src1, const unsigned char *src2, unsigned char *dest, const unsigned char *mask, int opacity, const int *affect, int length, int bytes); /* combine intensity with indexed, destination is * intensity-alpha...use this for an indexed floating sel */ void combine_inten_a_and_indexed_a_pixels (const unsigned char *src1, const unsigned char *src2, unsigned char *dest, const unsigned char *mask, const unsigned char *cmap, int opacity, int length, int bytes); /* combine RGB image with RGB or GRAY with GRAY * destination is intensity-only... */ void combine_inten_and_inten_pixels (const unsigned char *src1, const unsigned char *src2, unsigned char *dest, const unsigned char *mask, int opacity, const int *affect, int length, int bytes); /* combine an RGBA or GRAYA image with an RGB or GRAY image * destination is intensity-only... */ void combine_inten_and_inten_a_pixels (const unsigned char *src1, const unsigned char *src2, unsigned char *dest, const unsigned char *mask, int opacity, const int *affect, int length, int bytes); /* combine an RGB or GRAY image with an RGBA or GRAYA image * destination is intensity-alpha... */ void combine_inten_a_and_inten_pixels (const unsigned char *src1, const unsigned char *src2, unsigned char *dest, const unsigned char *mask, int opacity, const int *affect, int mode_affect, int length, int bytes); /* combine an RGBA or GRAYA image with an RGBA or GRAYA image * destination is of course intensity-alpha... */ void combine_inten_a_and_inten_a_pixels (const unsigned char *src1, const unsigned char *src2, unsigned char *dest, const unsigned char *mask, int opacity, const int *affect, int mode_affect, int length, int bytes); /* combine a channel with intensity-alpha pixels based * on some opacity, and a channel color... * destination is intensity-alpha */ void combine_inten_a_and_channel_mask_pixels(const unsigned char *src, const unsigned char *channel, unsigned char *dest, const unsigned char *col, int opacity, int length, int bytes); void combine_inten_a_and_channel_selection_pixels(const unsigned char *src, const unsigned char *channel, unsigned char *dest, const unsigned char *col, int opacity, int length, int bytes); /* paint "behind" the existing pixel row. * This is similar in appearance to painting on a layer below * the existing pixels. */ void behind_inten_pixels (const unsigned char *src1, const unsigned char *src2, unsigned char *dest, const unsigned char *mask, int opacity, const int *affect, int length, int bytes1, int bytes2, int has_alpha1, int has_alpha2); /* paint "behind" the existing pixel row (for indexed images). * This is similar in appearance to painting on a layer below * the existing pixels. */ void behind_indexed_pixels (const unsigned char *src1, const unsigned char *src2, unsigned char *dest, const unsigned char *mask, int opacity, const int *affect, int length, int bytes1, int bytes2, int has_alpha1, int has_alpha2); /* replace the contents of one pixel row with the other * The operation is still bounded by mask/opacity constraints */ void replace_inten_pixels (const unsigned char *src1, const unsigned char *src2, unsigned char *dest, const unsigned char *mask, int opacity, const int *affect, int length, int bytes1, int bytes2, int has_alpha1, int has_alpha2); /* replace the contents of one pixel row with the other * The operation is still bounded by mask/opacity constraints */ void replace_indexed_pixels (const unsigned char *src1, const unsigned char *src2, unsigned char *dest, const unsigned char *mask, int opacity, const int *affect, int length, int bytes1, int bytes2, int has_alpha1, int has_alpha2); /* apply source 2 to source 1, but in a non-additive way, * multiplying alpha channels (works for intensity) */ void erase_inten_pixels (const unsigned char *src1, const unsigned char *src2, unsigned char *dest, const unsigned char *mask, int opacity, const int *affect, int length, int bytes); /* apply source 2 to source 1, but in a non-additive way, * multiplying alpha channels (works for indexed) */ void erase_indexed_pixels (const unsigned char *src1, const unsigned char *src2, unsigned char *dest, const unsigned char *mask, int opacity, const int *affect, int length, int bytes); /* extract information from intensity pixels based on * a mask. */ void extract_from_inten_pixels (unsigned char *src, unsigned char *dest, const unsigned char *mask, const unsigned char *bg, int cut, int length, int bytes, int has_alpha); /* extract information from indexed pixels based on * a mask. */ void extract_from_indexed_pixels (unsigned char *src, unsigned char *dest, const unsigned char *mask, const unsigned char *cmap, const unsigned char *bg, int cut, int length, int bytes, int has_alpha); /* variable source to RGB color mapping * src_type == 0 (RGB) * src_type == 1 (GRAY) * src_type == 2 (INDEXED) */ void map_to_color (int src_type, const unsigned char *cmap, const unsigned char *src, unsigned char *rgb); /* RGB to index mapping functions... * * Hash table lookup speeds up the standard * least squares method */ int map_rgb_to_indexed (const unsigned char *cmap, int num_cols, GimpImage* gimage, int r, int g, int b); /* Region functions */ void color_region (PixelRegion *dest, const unsigned char *color); void blend_region (PixelRegion *, PixelRegion *, PixelRegion *, int); void shade_region (PixelRegion *, PixelRegion *, unsigned char *, int); void copy_region (PixelRegion *, PixelRegion *); void add_alpha_region (PixelRegion *, PixelRegion *); void flatten_region (PixelRegion *, PixelRegion *, unsigned char *); void extract_alpha_region (PixelRegion *, PixelRegion *, PixelRegion *); void extract_from_region (PixelRegion *, PixelRegion *, PixelRegion *, unsigned char *, unsigned char *, int, int, int); void convolve_region (PixelRegion *, PixelRegion *, int *, int, int, ConvolutionType); void multiply_alpha_region (PixelRegion *); void separate_alpha_region (PixelRegion *); void gaussian_blur_region (PixelRegion *, double, double); void border_region (PixelRegion *, gint16, gint16); void scale_region (PixelRegion *, PixelRegion *); void scale_region_no_resample (PixelRegion *, PixelRegion *); void subsample_region (PixelRegion *, PixelRegion *, int); float shapeburst_region (PixelRegion *, PixelRegion *); void thin_region (PixelRegion *, gint16 xradius, gint16 yradius, int edge_lock); void fatten_region (PixelRegion *, gint16 xradius, gint16 yradius); void swap_region (PixelRegion *, PixelRegion *); /* Apply a mask to an image's alpha channel */ void apply_mask_to_region (PixelRegion *, PixelRegion *, int); /* Combine a mask with an image's alpha channel */ void combine_mask_and_region (PixelRegion *, PixelRegion *, int); /* Copy a gray image to an intensity-alpha region */ void copy_gray_to_region (PixelRegion *, PixelRegion *); /* Lay down the groundwork for layer construction... * This includes background images for indexed or non-alpha * images, floating selections, selective display of intensity * channels, and display of arbitrary mask channels */ #define INITIAL_CHANNEL_MASK 0 #define INITIAL_CHANNEL_SELECTION 1 #define INITIAL_INDEXED 2 #define INITIAL_INDEXED_ALPHA 3 #define INITIAL_INTENSITY 4 #define INITIAL_INTENSITY_ALPHA 5 /* Combine two source regions with the help of an optional mask * region into a destination region. This is used for constructing * layer projections, and for applying image patches to an image */ #define COMBINE_INDEXED_INDEXED 0 #define COMBINE_INDEXED_INDEXED_A 1 #define COMBINE_INDEXED_A_INDEXED_A 2 #define COMBINE_INTEN_A_INDEXED_A 3 #define COMBINE_INTEN_A_CHANNEL_MASK 4 #define COMBINE_INTEN_A_CHANNEL_SELECTION 5 #define COMBINE_INTEN_INTEN 6 #define COMBINE_INTEN_INTEN_A 7 #define COMBINE_INTEN_A_INTEN 8 #define COMBINE_INTEN_A_INTEN_A 9 /* Non-conventional combination modes */ #define BEHIND_INTEN 20 #define BEHIND_INDEXED 21 #define REPLACE_INTEN 22 #define REPLACE_INDEXED 23 #define ERASE_INTEN 24 #define ERASE_INDEXED 25 #define ANTI_ERASE_INTEN 26 #define ANTI_ERASE_INDEXED 27 #define NO_COMBINATION 28 /* Opacities */ #define TRANSPARENT_OPACITY 0 #define OPAQUE_OPACITY 255 void initial_region (PixelRegion *, PixelRegion *, PixelRegion *, unsigned char *, int, LayerModeEffects, int *, int); void combine_regions (PixelRegion *, PixelRegion *, PixelRegion *, PixelRegion *, unsigned char *, int, LayerModeEffects, int *, int); void combine_regions_replace (PixelRegion *, PixelRegion *, PixelRegion *, PixelRegion *, unsigned char *, int, int *, int); /* Applying layer modes... */ int apply_layer_mode (unsigned char *, unsigned char *, unsigned char **, int, int, int, int, LayerModeEffects, int, int, int, int, int *); int apply_indexed_layer_mode (unsigned char *, unsigned char *, unsigned char **, LayerModeEffects, int, int); #endif /* __PAINT_FUNCS_H__ */