161 lines
6.9 KiB
C
161 lines
6.9 KiB
C
/* vim:expandtab:ts=2 sw=2:
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*/
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/* Grafx2 - The Ultimate 256-color bitmap paint program
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Copyright 2007 Adrien Destugues
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Copyright 1996-2001 Sunset Design (Guillaume Dorme & Karl Maritaud)
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Grafx2 is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; version 2
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of the License.
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Grafx2 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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You should have received a copy of the GNU General Public License
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along with Grafx2; if not, see <http://www.gnu.org/licenses/>
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*/
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//////////////////////////////////////////////////////////////////////////////
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///@file misc.h
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/// Miscellanous unsorted functions.
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//////////////////////////////////////////////////////////////////////////////
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#include "struct.h"
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#define SWAP_BYTES(a,b) { byte c=a; a=b; b=c;}
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#define SWAP_WORDS(a,b) { word c=a; a=b; b=c;}
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#define SWAP_DWORDS(a,b) { dword c=a; a=b; b=c;}
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#define SWAP_SHORTS(a,b) { short c=a; a=b; b=c;}
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#define SWAP_FLOATS(a,b) { float c=a; a=b; b=c;}
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#define SWAP_PBYTES(a,b) { byte * c=a; a=b; b=c;}
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void Copy_image_to_brush(short start_x,short start_y,short Brush_width,short Brush_height,word image_width);
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void Remap_general_lowlevel(byte * conversion_table,byte * buffer,short width,short height,short buffer_width);
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void Scroll_picture(byte * main_src, byte * main_dest, short x_offset,short y_offset);
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void Wait_end_of_click(void);
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void Set_color(byte color, byte red, byte green, byte blue);
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void Set_palette(T_Palette palette);
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void Palette_256_to_64(T_Palette palette);
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void Palette_64_to_256(T_Palette palette);
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void Hide_current_image(byte color);
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void Hide_current_image_with_stencil(byte color, byte * stencil);
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void Slider_timer(byte speed);
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dword Round_div(dword numerator,dword divisor);
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word Count_used_colors(dword * usage);
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word Count_used_colors_area(dword* usage, word start_x, word start_y, word width, word height);
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word Count_used_colors_screen_area(dword* usage, word start_x, word start_y, word width, word height);
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void Pixel_in_brush (word x,word y,byte color);
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byte Read_pixel_from_spare_screen(word x,word y);
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byte Read_pixel_from_backup_screen (word x,word y);
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byte Read_pixel_from_feedback_screen (word x,word y);
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byte Read_pixel_from_brush (word x,word y);
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void Ellipse_compute_limites(short horizontal_radius,short vertical_radius);
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// Calcule les valeurs suivantes en fonction des deux param<61>tres:
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//
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// Ellipse_vertical_radius_squared
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// Ellipse_horizontal_radius_squared
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// Ellipse_Limit_High
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// Ellipse_Limit_Low
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byte Pixel_in_ellipse(void);
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// Indique si le pixel se trouvant <20> Ellipse_cursor_X pixels
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// (Ellipse_cursor_X>0 = <20> droite, Ellipse_cursor_X<0 = <20> gauche) et <20>
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// Ellipse_cursor_Y pixels (Ellipse_cursor_Y>0 = en bas,
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// Ellipse_cursor_Y<0 = en haut) du centre se trouve dans l'ellipse en
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// cours.
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byte Pixel_in_circle(void);
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// Indique si le pixel se trouvant <20> Circle_cursor_X pixels
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// (Circle_cursor_X>0 = <20> droite, Circle_cursor_X<0 = <20> gauche) et <20>
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// Circle_cursor_Y pixels (Circle_cursor_Y>0 = en bas,
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// Circle_cursor_Y<0 = en haut) du centre se trouve dans le cercle en
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// cours.
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// Gestion du chrono dans les fileselects
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void Init_chrono(dword delay);
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void Check_timer(void);
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void Replace_a_color(byte old_color, byte New_color);
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void Replace_colors_within_limits(byte * replace_table);
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byte Effect_interpolated_colorize (word x,word y,byte color);
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byte Effect_additive_colorize (word x,word y,byte color);
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byte Effect_substractive_colorize(word x,word y,byte color);
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byte Effect_sieve(word x,word y);
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///
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/// Inverts a pixel buffer, according to a horizontal axis.
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/// @param src Pointer to the pixel buffer to process.
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/// @param width Width of the buffer.
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/// @param height Height of the buffer.
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void Flip_Y_lowlevel(byte *src, short width, short height);
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///
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/// Inverts a pixel buffer, according to a vertical axis.
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/// @param src Pointer to the pixel buffer to process.
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/// @param width Width of the buffer.
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/// @param height Height of the buffer.
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void Flip_X_lowlevel(byte *src, short width, short height);
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///
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/// Rotate a pixel buffer by 90 degrees, clockwise.
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/// @param source Source pixel buffer.
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/// @param dest Destination pixel buffer.
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/// @param width Width of the original buffer (height of the destination one).
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/// @param height Height of the original buffer (width of the destination one).
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void Rotate_90_deg_lowlevel(byte * source, byte * dest, short width, short height);
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///
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/// Rotate a pixel buffer by 90 degrees, counter-clockwise.
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/// @param source Source pixel buffer.
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/// @param dest Destination pixel buffer.
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/// @param width Width of the original buffer (height of the destination one).
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/// @param height Height of the original buffer (width of the destination one).
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void Rotate_270_deg_lowlevel(byte * source, byte * dest, short width, short height);
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///
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/// Rotate a pixel buffer by 180 degrees.
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/// @param src The pixel buffer (source and destination).
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/// @param width Width of the buffer.
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/// @param height Height of the buffer.
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void Rotate_180_deg_lowlevel(byte *src, short width, short height);
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///
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/// Copies an image to another, rescaling it and optionally flipping it.
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/// @param src_buffer Original image (address of first byte)
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/// @param src_width Original image's width in pixels
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/// @param src_height Original image's height in pixels
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/// @param dst_buffer Destination image (address of first byte)
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/// @param dst_width Destination image's width in pixels
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/// @param dst_height Destination image's height in pixels
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/// @param x_flipped Boolean, true to flip the image horizontally
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/// @param y_flipped Boolean, true to flip the image vertically
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void Rescale(byte *src_buffer, short src_width, short src_height, byte *dst_buffer, short dst_width, short dst_height, short x_flipped, short y_flipped);
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void Zoom_a_line(byte * original_line,byte * zoomed_line,word factor,word width);
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void Copy_part_of_image_to_another(byte * source,word source_x,word source_y,word width,word height,word source_width,byte * dest,word dest_x,word dest_y,word destination_width);
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// -- Gestion du chrono --
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byte Timer_state; // State du chrono: 0=Attente d'un X<>me de seconde
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// 1=Il faut afficher la preview
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// 2=Plus de chrono <20> gerer pour l'instant
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dword Timer_delay; // Nombre de 18.2<EFBFBD>me de secondes demand<6E>s
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dword Timer_start; // Heure de d<>part du chrono
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byte New_preview_is_needed; // Bool<6F>en "Il faut relancer le chrono de preview"
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unsigned long Memory_free(void);
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#define Num2str(a,b,c) sprintf(b,"%*lu",c,(long)(a))
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short Round(float value);
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short Round_div_max(short numerator,short divisor);
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int Min(int a,int b);
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int Max(int a,int b);
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char* Mode_label(int mode);
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int Convert_videomode_arg(const char *argument);
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