2673 lines
		
	
	
		
			74 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			2673 lines
		
	
	
		
			74 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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 | 
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    Copyright 2009 Petter Lindquist
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    Copyright 2008 Yves Rizoud
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						||
    Copyright 2008 Franck Charlet
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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
 | 
						||
    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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///@file miscfileformats.c
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/// Formats that aren't fully saving, either because of palette restrictions or other things
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#include "engine.h"
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#include "errors.h"
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#include "global.h"
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#include "io.h"
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						||
#include "libraw2crtc.h"
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#include "limits.h"
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#include "loadsave.h"
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#include "misc.h"
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#include "sdlscreen.h"
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#include "struct.h"
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#include "windows.h"
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//////////////////////////////////// PAL ////////////////////////////////////
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//
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void Draw_palette_preview(T_IO_Context * context)
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{
 | 
						||
  short index;
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						||
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						||
  if (context->Type == CONTEXT_PREVIEW)
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						||
    for (index=0; index<256; index++)
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      Window_rectangle(183+(index/16)*7,95+(index&15)*5,5,5,index);
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						||
 | 
						||
  Update_window_area(183,95,120,80);
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}
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						||
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						||
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						||
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// -- Tester si un fichier est au format PAL --------------------------------
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void Test_PAL(T_IO_Context * context)
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{
 | 
						||
  FILE *file; // Fichier du fichier
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						||
  char filename[MAX_PATH_CHARACTERS]; // Nom complet du fichier
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						||
  long file_size; // Taille du fichier
 | 
						||
 | 
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  Get_full_filename(filename, context->File_name, context->File_directory);
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						||
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						||
  File_error = 1;
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						||
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						||
  // Ouverture du fichier
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  if ((file = fopen(filename, "rb")))
 | 
						||
  {
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						||
    // Lecture de la taille du fichier
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						||
    file_size = File_length_file(file);
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						||
    // Le fichier ne peut <20>tre au format PAL que si sa taille vaut 768 octets
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						||
    if (file_size == sizeof(T_Palette))
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						||
      File_error = 0;
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						||
	else {
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						||
		// Sinon c'est peut <20>tre un fichier palette ASCII "Jasc"
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						||
		fread(filename, 1, 8, file);
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						||
		if (strncmp(filename,"JASC-PAL",8) == 0)
 | 
						||
		{
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						||
			File_error = 0;
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						||
		}
 | 
						||
	}
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						||
    fclose(file);
 | 
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  }
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}
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// -- Lire un fichier au format PAL -----------------------------------------
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void Load_PAL(T_IO_Context * context)
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{
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						||
  FILE *file;              // Fichier du fichier
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						||
  char filename[MAX_PATH_CHARACTERS]; // Nom complet du fichier
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						||
  //long  file_size;   // Taille du fichier
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						||
 | 
						||
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  Get_full_filename(filename, context->File_name, context->File_directory);
 | 
						||
  File_error=0;
 | 
						||
 | 
						||
  // Ouverture du fichier
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						||
  if ((file=fopen(filename, "rb")))
 | 
						||
  {
 | 
						||
    long file_size = File_length_file(file);
 | 
						||
    // Le fichier ne peut <20>tre au format PAL que si sa taille vaut 768 octets
 | 
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    if (file_size == sizeof(T_Palette))
 | 
						||
	{
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						||
		T_Palette palette_64;
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						||
		// Pre_load(context, ?); // Pas possible... pas d'image...
 | 
						||
 | 
						||
		// Lecture du fichier dans context->Palette
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						||
		if (Read_bytes(file, palette_64, sizeof(T_Palette)))
 | 
						||
		{
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						||
			Palette_64_to_256(palette_64);
 | 
						||
			memcpy(context->Palette, palette_64, sizeof(T_Palette));
 | 
						||
			Palette_loaded(context);
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						||
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						||
			// On dessine une preview de la palette (si chargement = preview)
 | 
						||
			Draw_palette_preview(context);
 | 
						||
		}
 | 
						||
		else
 | 
						||
			File_error = 2;
 | 
						||
	} else {
 | 
						||
		fread(filename, 1, 8, file);
 | 
						||
		if (strncmp(filename,"JASC-PAL",8) == 0)
 | 
						||
		{
 | 
						||
			int i, n, r, g, b;
 | 
						||
			fscanf(file, "%d",&n);
 | 
						||
			if(n != 100) 
 | 
						||
			{
 | 
						||
				File_error = 2;
 | 
						||
				fclose(file);
 | 
						||
				return;
 | 
						||
			}
 | 
						||
			// Read color count
 | 
						||
			fscanf(file, "%d",&n);
 | 
						||
			for (i = 0; i < n; i++)
 | 
						||
			{
 | 
						||
				fscanf(file, "%d %d %d",&r, &g, &b);
 | 
						||
				context->Palette[i].R = r;
 | 
						||
				context->Palette[i].G = g;
 | 
						||
				context->Palette[i].B = b;
 | 
						||
 | 
						||
				Palette_loaded(context);
 | 
						||
 | 
						||
				// On dessine une preview de la palette (si chargement = preview)
 | 
						||
				Draw_palette_preview(context);
 | 
						||
			}
 | 
						||
		} else File_error = 2;
 | 
						||
		
 | 
						||
	}
 | 
						||
 | 
						||
    // Fermeture du fichier
 | 
						||
    fclose(file);
 | 
						||
  }
 | 
						||
  else
 | 
						||
    // Si on n'a pas r<>ussi <20> ouvrir le fichier, alors il y a eu une erreur
 | 
						||
    File_error=1;
 | 
						||
}
 | 
						||
 | 
						||
 | 
						||
// -- Sauver un fichier au format PAL ---------------------------------------
 | 
						||
void Save_PAL(T_IO_Context * context)
 | 
						||
{
 | 
						||
  FILE *file;             // Fichier du fichier
 | 
						||
  char filename[MAX_PATH_CHARACTERS]; // Nom complet du fichier
 | 
						||
  //long file_size;   // Taille du fichier
 | 
						||
 | 
						||
  Get_full_filename(filename, context->File_name, context->File_directory);
 | 
						||
 | 
						||
  File_error=0;
 | 
						||
 | 
						||
  // Ouverture du fichier
 | 
						||
  if ((file=fopen(filename,"w")))
 | 
						||
  {
 | 
						||
	int i;
 | 
						||
	fputs("JASC-PAL\n0100\n256\n", file);
 | 
						||
	for (i = 0; i < 256; i++)
 | 
						||
		fprintf(file,"%d %d %d\n",context->Palette[i].R, context->Palette[i].G, context->Palette[i].B);
 | 
						||
  }
 | 
						||
  else // Si on n'a pas r<>ussi <20> ouvrir le fichier, alors il y a eu une erreur
 | 
						||
  {
 | 
						||
    File_error=1;
 | 
						||
    fclose(file);
 | 
						||
    remove(filename);
 | 
						||
                     //   On se fout du r<>sultat de l'op<6F>ration car si <20>a
 | 
						||
                     // renvoie 0 c'est que le fichier avait <20>t<EFBFBD> partiel-
 | 
						||
                     // -lement <20>crit, sinon pas du tout. Or dans tous les
 | 
						||
                     // cas <20>a revient au m<>me pour nous: Sauvegarde rat<61>e!
 | 
						||
  }
 | 
						||
}
 | 
						||
 | 
						||
 | 
						||
//////////////////////////////////// PKM ////////////////////////////////////
 | 
						||
typedef struct
 | 
						||
{
 | 
						||
  char Ident[3];    // String "PKM" }
 | 
						||
  byte Method;      // Compression method
 | 
						||
                    //   0 = per-line compression (c)KM
 | 
						||
                    //   others = unknown at the moment
 | 
						||
  byte Recog1;      // Recognition byte 1
 | 
						||
  byte Recog2;      // Recognition byte 2
 | 
						||
  word Width;       // Image width
 | 
						||
  word Height;      // Image height
 | 
						||
  T_Palette Palette;// RGB Palette 256*3, on a 1-64 scale for each component
 | 
						||
  word Jump;        // Size of the jump between header and image:
 | 
						||
                    //   Used to insert a comment
 | 
						||
} T_PKM_Header;
 | 
						||
 | 
						||
// -- Tester si un fichier est au format PKM --------------------------------
 | 
						||
void Test_PKM(T_IO_Context * context)
 | 
						||
{
 | 
						||
  FILE *file;             // Fichier du fichier
 | 
						||
  char filename[MAX_PATH_CHARACTERS]; // Nom complet du fichier
 | 
						||
  T_PKM_Header header;
 | 
						||
 | 
						||
 | 
						||
  Get_full_filename(filename, context->File_name, context->File_directory);
 | 
						||
  
 | 
						||
  File_error=1;
 | 
						||
 | 
						||
  // Ouverture du fichier
 | 
						||
  if ((file=fopen(filename, "rb")))
 | 
						||
  {
 | 
						||
    // Lecture du header du fichier
 | 
						||
    if (Read_bytes(file,&header.Ident,3) &&
 | 
						||
        Read_byte(file,&header.Method) &&
 | 
						||
        Read_byte(file,&header.Recog1) &&
 | 
						||
        Read_byte(file,&header.Recog2) &&
 | 
						||
        Read_word_le(file,&header.Width) &&
 | 
						||
        Read_word_le(file,&header.Height) &&
 | 
						||
        Read_bytes(file,&header.Palette,sizeof(T_Palette)) &&
 | 
						||
        Read_word_le(file,&header.Jump))
 | 
						||
    {
 | 
						||
      // On regarde s'il y a la signature PKM suivie de la m<>thode 0.
 | 
						||
      // La constante "PKM" <20>tant un cha<68>ne, elle se termine toujours par 0.
 | 
						||
      // Donc pas la peine de s'emm...er <20> regarder si la m<>thode est <20> 0.
 | 
						||
      if ( (!memcmp(&header,"PKM",4)) && header.Width && header.Height)
 | 
						||
        File_error=0;
 | 
						||
    }
 | 
						||
    fclose(file);
 | 
						||
  }
 | 
						||
}
 | 
						||
 | 
						||
 | 
						||
// -- Lire un fichier au format PKM -----------------------------------------
 | 
						||
void Load_PKM(T_IO_Context * context)
 | 
						||
{
 | 
						||
  FILE *file;             // Fichier du fichier
 | 
						||
  char filename[MAX_PATH_CHARACTERS]; // Nom complet du fichier
 | 
						||
  T_PKM_Header header;
 | 
						||
  byte  color;
 | 
						||
  byte  temp_byte;
 | 
						||
  word  len;
 | 
						||
  word  index;
 | 
						||
  dword Compteur_de_pixels;
 | 
						||
  dword Compteur_de_donnees_packees;
 | 
						||
  dword image_size;
 | 
						||
  dword Taille_pack;
 | 
						||
  long  file_size;
 | 
						||
 | 
						||
  Get_full_filename(filename, context->File_name, context->File_directory);
 | 
						||
 | 
						||
  File_error=0;
 | 
						||
  
 | 
						||
  if ((file=fopen(filename, "rb")))
 | 
						||
  {
 | 
						||
    file_size=File_length_file(file);
 | 
						||
 | 
						||
    if (Read_bytes(file,&header.Ident,3) &&
 | 
						||
        Read_byte(file,&header.Method) &&
 | 
						||
        Read_byte(file,&header.Recog1) &&
 | 
						||
        Read_byte(file,&header.Recog2) &&
 | 
						||
        Read_word_le(file,&header.Width) &&
 | 
						||
        Read_word_le(file,&header.Height) &&
 | 
						||
        Read_bytes(file,&header.Palette,sizeof(T_Palette)) &&
 | 
						||
        Read_word_le(file,&header.Jump))
 | 
						||
    {
 | 
						||
      context->Comment[0]='\0'; // On efface le commentaire
 | 
						||
      if (header.Jump)
 | 
						||
      {
 | 
						||
        index=0;
 | 
						||
        while ( (index<header.Jump) && (!File_error) )
 | 
						||
        {
 | 
						||
          if (Read_byte(file,&temp_byte))
 | 
						||
          {
 | 
						||
            index+=2; // On rajoute le "Field-id" et "le Field-size" pas encore lu
 | 
						||
            switch (temp_byte)
 | 
						||
            {
 | 
						||
              case 0 : // Commentaire
 | 
						||
                if (Read_byte(file,&temp_byte))
 | 
						||
                {
 | 
						||
                  if (temp_byte>COMMENT_SIZE)
 | 
						||
                  {
 | 
						||
                    color=temp_byte;              // On se sert de color comme
 | 
						||
                    temp_byte=COMMENT_SIZE;   // variable temporaire
 | 
						||
                    color-=COMMENT_SIZE;
 | 
						||
                  }
 | 
						||
                  else
 | 
						||
                    color=0;
 | 
						||
 | 
						||
                  if (Read_bytes(file,context->Comment,temp_byte))
 | 
						||
                  {
 | 
						||
                    index+=temp_byte;
 | 
						||
                    context->Comment[temp_byte]='\0';
 | 
						||
                    if (color)
 | 
						||
                      if (fseek(file,color,SEEK_CUR))
 | 
						||
                        File_error=2;
 | 
						||
                  }
 | 
						||
                  else
 | 
						||
                    File_error=2;
 | 
						||
                }
 | 
						||
                else
 | 
						||
                  File_error=2;
 | 
						||
                break;
 | 
						||
 | 
						||
              case 1 : // Dimensions de l'<27>cran d'origine
 | 
						||
                if (Read_byte(file,&temp_byte))
 | 
						||
                {
 | 
						||
                  if (temp_byte==4)
 | 
						||
                  {
 | 
						||
                    index+=4;
 | 
						||
                    if ( ! Read_word_le(file,(word *) &Original_screen_X)
 | 
						||
                      || !Read_word_le(file,(word *) &Original_screen_Y) )
 | 
						||
                      File_error=2;
 | 
						||
                  }
 | 
						||
                  else
 | 
						||
                    File_error=2;
 | 
						||
                }
 | 
						||
                else
 | 
						||
                  File_error=2;
 | 
						||
                break;
 | 
						||
 | 
						||
              case 2 : // color de transparence
 | 
						||
                if (Read_byte(file,&temp_byte))
 | 
						||
                {
 | 
						||
                  if (temp_byte==1)
 | 
						||
                  {
 | 
						||
                    index++;
 | 
						||
                    if (! Read_byte(file,&Back_color))
 | 
						||
                      File_error=2;
 | 
						||
                  }
 | 
						||
                  else
 | 
						||
                    File_error=2;
 | 
						||
                }
 | 
						||
                else
 | 
						||
                  File_error=2;
 | 
						||
                break;
 | 
						||
 | 
						||
              default:
 | 
						||
                if (Read_byte(file,&temp_byte))
 | 
						||
                {
 | 
						||
                  index+=temp_byte;
 | 
						||
                  if (fseek(file,temp_byte,SEEK_CUR))
 | 
						||
                    File_error=2;
 | 
						||
                }
 | 
						||
                else
 | 
						||
                  File_error=2;
 | 
						||
            }
 | 
						||
          }
 | 
						||
          else
 | 
						||
            File_error=2;
 | 
						||
        }
 | 
						||
        if ( (!File_error) && (index!=header.Jump) )
 | 
						||
          File_error=2;
 | 
						||
      }
 | 
						||
 | 
						||
      /*Init_lecture();*/
 | 
						||
 | 
						||
      if (!File_error)
 | 
						||
      {
 | 
						||
        Pre_load(context, header.Width,header.Height,file_size,FORMAT_PKM,PIXEL_SIMPLE,0);
 | 
						||
        if (File_error==0)
 | 
						||
        {
 | 
						||
          
 | 
						||
          context->Width=header.Width;
 | 
						||
          context->Height=header.Height;
 | 
						||
          image_size=(dword)(context->Width*context->Height);
 | 
						||
          // Palette lue en 64
 | 
						||
          memcpy(context->Palette,header.Palette,sizeof(T_Palette));
 | 
						||
          Palette_64_to_256(context->Palette);
 | 
						||
          Palette_loaded(context);
 | 
						||
 | 
						||
          Compteur_de_donnees_packees=0;
 | 
						||
          Compteur_de_pixels=0;
 | 
						||
          Taille_pack=(file_size)-sizeof(T_PKM_Header)-header.Jump;
 | 
						||
 | 
						||
          // Boucle de d<>compression:
 | 
						||
          while ( (Compteur_de_pixels<image_size) && (Compteur_de_donnees_packees<Taille_pack) && (!File_error) )
 | 
						||
          {
 | 
						||
            if(Read_byte(file, &temp_byte)!=1) 
 | 
						||
            {
 | 
						||
              File_error=2;
 | 
						||
              break;
 | 
						||
            }
 | 
						||
 | 
						||
            // Si ce n'est pas un octet de reconnaissance, c'est un pixel brut
 | 
						||
            if ( (temp_byte!=header.Recog1) && (temp_byte!=header.Recog2) )
 | 
						||
            {
 | 
						||
              Set_pixel(context, Compteur_de_pixels % context->Width,
 | 
						||
                                  Compteur_de_pixels / context->Width,
 | 
						||
                                  temp_byte);
 | 
						||
              Compteur_de_donnees_packees++;
 | 
						||
              Compteur_de_pixels++;
 | 
						||
            }
 | 
						||
            else // Sinon, On regarde si on va d<>compacter un...
 | 
						||
            { // ... nombre de pixels tenant sur un byte
 | 
						||
                if (temp_byte==header.Recog1)
 | 
						||
                {
 | 
						||
                  if(Read_byte(file, &color)!=1)
 | 
						||
                {
 | 
						||
                    File_error=2;
 | 
						||
                    break;
 | 
						||
                }
 | 
						||
                if(Read_byte(file, &temp_byte)!=1)
 | 
						||
                {
 | 
						||
                    File_error=2;
 | 
						||
                    break;
 | 
						||
                }
 | 
						||
                for (index=0; index<temp_byte; index++)
 | 
						||
                  Set_pixel(context, (Compteur_de_pixels+index) % context->Width,
 | 
						||
                                      (Compteur_de_pixels+index) / context->Width,
 | 
						||
                                      color);
 | 
						||
                Compteur_de_pixels+=temp_byte;
 | 
						||
                Compteur_de_donnees_packees+=3;
 | 
						||
              }
 | 
						||
              else // ... nombre de pixels tenant sur un word
 | 
						||
              {
 | 
						||
                if(Read_byte(file, &color)!=1)
 | 
						||
                {
 | 
						||
                    File_error=2;
 | 
						||
                    break;
 | 
						||
        }
 | 
						||
                Read_word_be(file, &len);
 | 
						||
                for (index=0; index<len; index++)
 | 
						||
                  Set_pixel(context, (Compteur_de_pixels+index) % context->Width,
 | 
						||
                                      (Compteur_de_pixels+index) / context->Width,
 | 
						||
                                      color);
 | 
						||
                Compteur_de_pixels+=len;
 | 
						||
                Compteur_de_donnees_packees+=4;
 | 
						||
              }
 | 
						||
            }
 | 
						||
          }
 | 
						||
        }
 | 
						||
      }
 | 
						||
      /*Close_lecture();*/
 | 
						||
    }
 | 
						||
    else // Lecture header impossible: Error ne modifiant pas l'image
 | 
						||
      File_error=1;
 | 
						||
 | 
						||
    fclose(file);
 | 
						||
  }
 | 
						||
  else // Ouv. fichier impossible: Error ne modifiant pas l'image
 | 
						||
    File_error=1;
 | 
						||
}
 | 
						||
 | 
						||
 | 
						||
// -- Sauver un fichier au format PKM ---------------------------------------
 | 
						||
 | 
						||
  // Trouver quels sont les octets de reconnaissance
 | 
						||
  void Find_recog(byte * recog1, byte * recog2)
 | 
						||
  {
 | 
						||
    dword Find_recon[256]; // Table d'utilisation de couleurs
 | 
						||
    byte  best;   // Meilleure couleur pour recon (recon1 puis recon2)
 | 
						||
    dword NBest;  // Nombre d'occurences de cette couleur
 | 
						||
    word  index;
 | 
						||
 | 
						||
 | 
						||
    // On commence par compter l'utilisation de chaque couleurs
 | 
						||
    Count_used_colors(Find_recon);
 | 
						||
 | 
						||
    // Ensuite recog1 devient celle la moins utilis<69>e de celles-ci
 | 
						||
    *recog1=0;
 | 
						||
    best=1;
 | 
						||
    NBest=INT_MAX; // Une m<>me couleur ne pourra jamais <20>tre utilis<69>e 1M de fois.
 | 
						||
    for (index=1;index<=255;index++)
 | 
						||
      if (Find_recon[index]<NBest)
 | 
						||
      {
 | 
						||
        best=index;
 | 
						||
        NBest=Find_recon[index];
 | 
						||
      }
 | 
						||
    *recog1=best;
 | 
						||
 | 
						||
    // Enfin recog2 devient la 2<>me moins utilis<69>e
 | 
						||
    *recog2=0;
 | 
						||
    best=0;
 | 
						||
    NBest=INT_MAX;
 | 
						||
    for (index=0;index<=255;index++)
 | 
						||
      if ( (Find_recon[index]<NBest) && (index!=*recog1) )
 | 
						||
      {
 | 
						||
        best=index;
 | 
						||
        NBest=Find_recon[index];
 | 
						||
      }
 | 
						||
    *recog2=best;
 | 
						||
  }
 | 
						||
 | 
						||
 | 
						||
void Save_PKM(T_IO_Context * context)
 | 
						||
{
 | 
						||
  char filename[MAX_PATH_CHARACTERS];
 | 
						||
  FILE *file;
 | 
						||
  T_PKM_Header header;
 | 
						||
  dword Compteur_de_pixels;
 | 
						||
  dword image_size;
 | 
						||
  word  repetitions;
 | 
						||
  byte  last_color;
 | 
						||
  byte  pixel_value;
 | 
						||
  byte  comment_size;
 | 
						||
 | 
						||
 | 
						||
 | 
						||
  // Construction du header
 | 
						||
  memcpy(header.Ident,"PKM",3);
 | 
						||
  header.Method=0;
 | 
						||
  Find_recog(&header.Recog1,&header.Recog2);
 | 
						||
  header.Width=context->Width;
 | 
						||
  header.Height=context->Height;
 | 
						||
  memcpy(header.Palette,context->Palette,sizeof(T_Palette));
 | 
						||
  Palette_256_to_64(header.Palette);
 | 
						||
 | 
						||
  // Calcul de la taille du Post-header
 | 
						||
  header.Jump=9; // 6 pour les dimensions de l'ecran + 3 pour la back-color
 | 
						||
  comment_size=strlen(context->Comment);
 | 
						||
  if (comment_size)
 | 
						||
    header.Jump+=comment_size+2;
 | 
						||
 | 
						||
 | 
						||
  Get_full_filename(filename, context->File_name, context->File_directory);
 | 
						||
 | 
						||
  File_error=0;
 | 
						||
 | 
						||
  // Ouverture du fichier
 | 
						||
  if ((file=fopen(filename,"wb")))
 | 
						||
  {
 | 
						||
    // Ecriture du header
 | 
						||
    if (Write_bytes(file,&header.Ident,3) &&
 | 
						||
        Write_byte(file,header.Method) &&
 | 
						||
        Write_byte(file,header.Recog1) &&
 | 
						||
        Write_byte(file,header.Recog2) &&
 | 
						||
        Write_word_le(file,header.Width) &&
 | 
						||
        Write_word_le(file,header.Height) &&
 | 
						||
        Write_bytes(file,&header.Palette,sizeof(T_Palette)) &&
 | 
						||
        Write_word_le(file,header.Jump))
 | 
						||
    {
 | 
						||
      Init_write_buffer();
 | 
						||
 | 
						||
      // Ecriture du commentaire
 | 
						||
      // (Compteur_de_pixels est utilis<69> ici comme simple index de comptage)
 | 
						||
      if (comment_size)
 | 
						||
      {
 | 
						||
        Write_one_byte(file,0);
 | 
						||
        Write_one_byte(file,comment_size);
 | 
						||
        for (Compteur_de_pixels=0; Compteur_de_pixels<comment_size; Compteur_de_pixels++)
 | 
						||
          Write_one_byte(file,context->Comment[Compteur_de_pixels]);
 | 
						||
      }
 | 
						||
      // Ecriture des dimensions de l'<27>cran
 | 
						||
      Write_one_byte(file,1);
 | 
						||
      Write_one_byte(file,4);
 | 
						||
      Write_one_byte(file,Screen_width&0xFF);
 | 
						||
      Write_one_byte(file,Screen_width>>8);
 | 
						||
      Write_one_byte(file,Screen_height&0xFF);
 | 
						||
      Write_one_byte(file,Screen_height>>8);
 | 
						||
      // Ecriture de la back-color
 | 
						||
      Write_one_byte(file,2);
 | 
						||
      Write_one_byte(file,1);
 | 
						||
      Write_one_byte(file,Back_color);
 | 
						||
 | 
						||
      // Routine de compression PKM de l'image
 | 
						||
      image_size=(dword)(context->Width*context->Height);
 | 
						||
      Compteur_de_pixels=0;
 | 
						||
      pixel_value=Get_pixel(context, 0,0);
 | 
						||
 | 
						||
      while ( (Compteur_de_pixels<image_size) && (!File_error) )
 | 
						||
      {
 | 
						||
        Compteur_de_pixels++;
 | 
						||
        repetitions=1;
 | 
						||
        last_color=pixel_value;
 | 
						||
        if(Compteur_de_pixels<image_size)
 | 
						||
        {
 | 
						||
          pixel_value=Get_pixel(context, Compteur_de_pixels % context->Width,Compteur_de_pixels / context->Width);
 | 
						||
        }
 | 
						||
        while ( (pixel_value==last_color)
 | 
						||
             && (Compteur_de_pixels<image_size)
 | 
						||
             && (repetitions<65535) )
 | 
						||
        {
 | 
						||
          Compteur_de_pixels++;
 | 
						||
          repetitions++;
 | 
						||
          if(Compteur_de_pixels>=image_size) break;
 | 
						||
          pixel_value=Get_pixel(context, Compteur_de_pixels % context->Width,Compteur_de_pixels / context->Width);
 | 
						||
        }
 | 
						||
 | 
						||
        if ( (last_color!=header.Recog1) && (last_color!=header.Recog2) )
 | 
						||
        {
 | 
						||
          if (repetitions==1)
 | 
						||
            Write_one_byte(file,last_color);
 | 
						||
          else
 | 
						||
          if (repetitions==2)
 | 
						||
          {
 | 
						||
            Write_one_byte(file,last_color);
 | 
						||
            Write_one_byte(file,last_color);
 | 
						||
          }
 | 
						||
          else
 | 
						||
          if ( (repetitions>2) && (repetitions<256) )
 | 
						||
          { // RECON1/couleur/nombre
 | 
						||
            Write_one_byte(file,header.Recog1);
 | 
						||
            Write_one_byte(file,last_color);
 | 
						||
            Write_one_byte(file,repetitions&0xFF);
 | 
						||
          }
 | 
						||
          else
 | 
						||
          if (repetitions>=256)
 | 
						||
          { // RECON2/couleur/hi(nombre)/lo(nombre)
 | 
						||
            Write_one_byte(file,header.Recog2);
 | 
						||
            Write_one_byte(file,last_color);
 | 
						||
            Write_one_byte(file,repetitions>>8);
 | 
						||
            Write_one_byte(file,repetitions&0xFF);
 | 
						||
          }
 | 
						||
        }
 | 
						||
        else
 | 
						||
        {
 | 
						||
          if (repetitions<256)
 | 
						||
          {
 | 
						||
            Write_one_byte(file,header.Recog1);
 | 
						||
            Write_one_byte(file,last_color);
 | 
						||
            Write_one_byte(file,repetitions&0xFF);
 | 
						||
          }
 | 
						||
          else
 | 
						||
          {
 | 
						||
            Write_one_byte(file,header.Recog2);
 | 
						||
            Write_one_byte(file,last_color);
 | 
						||
            Write_one_byte(file,repetitions>>8);
 | 
						||
            Write_one_byte(file,repetitions&0xFF);
 | 
						||
          }
 | 
						||
        }
 | 
						||
      }
 | 
						||
 | 
						||
      End_write(file);
 | 
						||
    }
 | 
						||
    else
 | 
						||
      File_error=1;
 | 
						||
    fclose(file);
 | 
						||
  }
 | 
						||
  else
 | 
						||
  {
 | 
						||
    File_error=1;
 | 
						||
    fclose(file);
 | 
						||
  }
 | 
						||
  //   S'il y a eu une erreur de sauvegarde, on ne va tout de m<>me pas laisser
 | 
						||
  // ce fichier pourri tra<72>ner... Ca fait pas propre.
 | 
						||
  if (File_error)
 | 
						||
    remove(filename);
 | 
						||
}
 | 
						||
 | 
						||
 | 
						||
//////////////////////////////////// CEL ////////////////////////////////////
 | 
						||
#pragma pack(1)
 | 
						||
typedef struct
 | 
						||
{
 | 
						||
  word Width;              // width de l'image
 | 
						||
  word Height;             // height de l'image
 | 
						||
} T_CEL_Header1;
 | 
						||
 | 
						||
typedef struct
 | 
						||
{
 | 
						||
  byte Signature[4];           // Signature du format
 | 
						||
  byte Kind;               // Type de fichier ($10=PALette $20=BitMaP)
 | 
						||
  byte Nb_bits;             // Nombre de bits
 | 
						||
  word Filler1;            // ???
 | 
						||
  word Width;            // width de l'image
 | 
						||
  word Height;            // height de l'image
 | 
						||
  word X_offset;         // Offset en X de l'image
 | 
						||
  word Y_offset;         // Offset en Y de l'image
 | 
						||
  byte Filler2[16];        // ???
 | 
						||
} T_CEL_Header2;
 | 
						||
#pragma pack()
 | 
						||
 | 
						||
// -- Tester si un fichier est au format CEL --------------------------------
 | 
						||
 | 
						||
void Test_CEL(T_IO_Context * context)
 | 
						||
{
 | 
						||
  char filename[MAX_PATH_CHARACTERS];
 | 
						||
  int  size;
 | 
						||
  FILE *file;
 | 
						||
  T_CEL_Header1 header1;
 | 
						||
  T_CEL_Header2 header2;
 | 
						||
  int file_size;
 | 
						||
 | 
						||
  File_error=0;
 | 
						||
  Get_full_filename(filename, context->File_name, context->File_directory);
 | 
						||
  file_size=File_length(filename);
 | 
						||
  if (file_size==0)
 | 
						||
  {
 | 
						||
    File_error = 1; // Si on ne peut pas faire de stat il vaut mieux laisser tomber
 | 
						||
    return;
 | 
						||
  }
 | 
						||
  
 | 
						||
  if (! (file=fopen(filename, "rb")))
 | 
						||
  {
 | 
						||
    File_error = 1;
 | 
						||
    return;
 | 
						||
  }
 | 
						||
  if (Read_word_le(file,&header1.Width) &&
 | 
						||
      Read_word_le(file,&header1.Height) )
 | 
						||
  {
 | 
						||
      //   Vu que ce header n'a pas de signature, il va falloir tester la
 | 
						||
      // coh<6F>rence de la dimension de l'image avec celle du fichier.
 | 
						||
      
 | 
						||
      size=file_size-sizeof(T_CEL_Header1);
 | 
						||
      if ( (!size) || ( (((header1.Width+1)>>1)*header1.Height)!=size ) )
 | 
						||
      {
 | 
						||
        // Tentative de reconnaissance de la signature des nouveaux fichiers
 | 
						||
 | 
						||
        fseek(file,0,SEEK_SET);        
 | 
						||
        if (Read_bytes(file,&header2.Signature,4) &&
 | 
						||
            !memcmp(header2.Signature,"KiSS",4) &&
 | 
						||
            Read_byte(file,&header2.Kind) &&
 | 
						||
            (header2.Kind==0x20) &&
 | 
						||
            Read_byte(file,&header2.Nb_bits) &&
 | 
						||
            Read_word_le(file,&header2.Filler1) &&
 | 
						||
            Read_word_le(file,&header2.Width) &&
 | 
						||
            Read_word_le(file,&header2.Height) &&
 | 
						||
            Read_word_le(file,&header2.X_offset) &&
 | 
						||
            Read_word_le(file,&header2.Y_offset) &&
 | 
						||
            Read_bytes(file,&header2.Filler2,16))
 | 
						||
        {
 | 
						||
          // ok
 | 
						||
        }
 | 
						||
        else
 | 
						||
          File_error=1;
 | 
						||
      }
 | 
						||
      else
 | 
						||
        File_error=1;
 | 
						||
  }
 | 
						||
  else
 | 
						||
  {
 | 
						||
    File_error=1;
 | 
						||
  }
 | 
						||
  fclose(file);    
 | 
						||
}
 | 
						||
 | 
						||
 | 
						||
// -- Lire un fichier au format CEL -----------------------------------------
 | 
						||
 | 
						||
void Load_CEL(T_IO_Context * context)
 | 
						||
{
 | 
						||
  char filename[MAX_PATH_CHARACTERS];
 | 
						||
  FILE *file;
 | 
						||
  T_CEL_Header1 header1;
 | 
						||
  T_CEL_Header2 header2;
 | 
						||
  short x_pos;
 | 
						||
  short y_pos;
 | 
						||
  byte  last_byte=0;
 | 
						||
  long  file_size;
 | 
						||
  const long int header_size = (long int)(sizeof(header1.Width)+sizeof(header1.Height));
 | 
						||
 | 
						||
  File_error=0;
 | 
						||
  Get_full_filename(filename, context->File_name, context->File_directory);
 | 
						||
  if ((file=fopen(filename, "rb")))
 | 
						||
  {
 | 
						||
    if (Read_word_le(file,&(header1.Width))
 | 
						||
    &&  Read_word_le(file,&(header1.Height)))
 | 
						||
    {
 | 
						||
      file_size=File_length_file(file);
 | 
						||
      if ( (file_size>header_size)
 | 
						||
        && ( (((header1.Width+1)>>1)*header1.Height)==(file_size-header_size) ) )
 | 
						||
      {
 | 
						||
        // Chargement d'un fichier CEL sans signature (vieux fichiers)
 | 
						||
        context->Width=header1.Width;
 | 
						||
        context->Height=header1.Height;
 | 
						||
        Original_screen_X=context->Width;
 | 
						||
        Original_screen_Y=context->Height;
 | 
						||
        Pre_load(context, context->Width,context->Height,file_size,FORMAT_CEL,PIXEL_SIMPLE,0);
 | 
						||
        if (File_error==0)
 | 
						||
        {
 | 
						||
          // Chargement de l'image
 | 
						||
          /*Init_lecture();*/
 | 
						||
          for (y_pos=0;((y_pos<context->Height) && (!File_error));y_pos++)
 | 
						||
            for (x_pos=0;((x_pos<context->Width) && (!File_error));x_pos++)
 | 
						||
              if ((x_pos & 1)==0)
 | 
						||
              {
 | 
						||
                if(Read_byte(file,&last_byte)!=1) File_error = 2;
 | 
						||
                Set_pixel(context, x_pos,y_pos,(last_byte >> 4));
 | 
						||
              }
 | 
						||
              else
 | 
						||
                Set_pixel(context, x_pos,y_pos,(last_byte & 15));
 | 
						||
          /*Close_lecture();*/
 | 
						||
        }
 | 
						||
      }
 | 
						||
      else
 | 
						||
      {
 | 
						||
        // On r<>essaye avec le nouveau format
 | 
						||
 | 
						||
        fseek(file,0,SEEK_SET);
 | 
						||
        if (Read_bytes(file,header2.Signature,sizeof(header2.Signature))
 | 
						||
        && Read_byte(file,&(header2.Kind))
 | 
						||
        && Read_byte(file,&(header2.Nb_bits))
 | 
						||
        && Read_word_le(file,&(header2.Filler1))
 | 
						||
        && Read_word_le(file,&(header2.Width))
 | 
						||
        && Read_word_le(file,&(header2.Height))
 | 
						||
        && Read_word_le(file,&(header2.X_offset))
 | 
						||
        && Read_word_le(file,&(header2.Y_offset))
 | 
						||
        && Read_bytes(file,header2.Filler2,sizeof(header2.Filler2))
 | 
						||
        )
 | 
						||
        {
 | 
						||
          // Chargement d'un fichier CEL avec signature (nouveaux fichiers)
 | 
						||
 | 
						||
          context->Width=header2.Width+header2.X_offset;
 | 
						||
          context->Height=header2.Height+header2.Y_offset;
 | 
						||
          Original_screen_X=context->Width;
 | 
						||
          Original_screen_Y=context->Height;
 | 
						||
          Pre_load(context, context->Width,context->Height,file_size,FORMAT_CEL,PIXEL_SIMPLE,0);
 | 
						||
          if (File_error==0)
 | 
						||
          {
 | 
						||
            // Chargement de l'image
 | 
						||
            /*Init_lecture();*/
 | 
						||
 | 
						||
            if (!File_error)
 | 
						||
            {
 | 
						||
              // Effacement du d<>calage
 | 
						||
              for (y_pos=0;y_pos<header2.Y_offset;y_pos++)
 | 
						||
                for (x_pos=0;x_pos<context->Width;x_pos++)
 | 
						||
                  Set_pixel(context, x_pos,y_pos,0);
 | 
						||
              for (y_pos=header2.Y_offset;y_pos<context->Height;y_pos++)
 | 
						||
                for (x_pos=0;x_pos<header2.X_offset;x_pos++)
 | 
						||
                  Set_pixel(context, x_pos,y_pos,0);
 | 
						||
 | 
						||
              switch(header2.Nb_bits)
 | 
						||
              {
 | 
						||
                case 4:
 | 
						||
                  for (y_pos=0;((y_pos<header2.Height) && (!File_error));y_pos++)
 | 
						||
                    for (x_pos=0;((x_pos<header2.Width) && (!File_error));x_pos++)
 | 
						||
                      if ((x_pos & 1)==0)
 | 
						||
                      {
 | 
						||
                        if(Read_byte(file,&last_byte)!=1) File_error=2;
 | 
						||
                        Set_pixel(context, x_pos+header2.X_offset,y_pos+header2.Y_offset,(last_byte >> 4));
 | 
						||
                      }
 | 
						||
                      else
 | 
						||
                        Set_pixel(context, x_pos+header2.X_offset,y_pos+header2.Y_offset,(last_byte & 15));
 | 
						||
                  break;
 | 
						||
 | 
						||
                case 8:
 | 
						||
                  for (y_pos=0;((y_pos<header2.Height) && (!File_error));y_pos++)
 | 
						||
                    for (x_pos=0;((x_pos<header2.Width) && (!File_error));x_pos++)
 | 
						||
                    {
 | 
						||
                      byte byte_read;
 | 
						||
                      if(Read_byte(file,&byte_read)!=1) File_error = 2;
 | 
						||
                      Set_pixel(context, x_pos+header2.X_offset,y_pos+header2.Y_offset,byte_read);
 | 
						||
                      }
 | 
						||
                  break;
 | 
						||
 | 
						||
                default:
 | 
						||
                  File_error=1;
 | 
						||
              }
 | 
						||
            }
 | 
						||
            /*Close_lecture();*/
 | 
						||
          }
 | 
						||
        }
 | 
						||
        else
 | 
						||
          File_error=1;
 | 
						||
      }
 | 
						||
      fclose(file);
 | 
						||
    }
 | 
						||
    else
 | 
						||
      File_error=1;
 | 
						||
  }
 | 
						||
  else
 | 
						||
    File_error=1;
 | 
						||
}
 | 
						||
 | 
						||
 | 
						||
// -- Ecrire un fichier au format CEL ---------------------------------------
 | 
						||
 | 
						||
void Save_CEL(T_IO_Context * context)
 | 
						||
{
 | 
						||
  char filename[MAX_PATH_CHARACTERS];
 | 
						||
  FILE *file;
 | 
						||
  T_CEL_Header1 header1;
 | 
						||
  T_CEL_Header2 header2;
 | 
						||
  short x_pos;
 | 
						||
  short y_pos;
 | 
						||
  byte  last_byte=0;
 | 
						||
  dword Utilisation[256]; // Table d'utilisation de couleurs
 | 
						||
 | 
						||
 | 
						||
  // On commence par compter l'utilisation de chaque couleurs
 | 
						||
  Count_used_colors(Utilisation);
 | 
						||
 | 
						||
  File_error=0;
 | 
						||
  Get_full_filename(filename, context->File_name, context->File_directory);
 | 
						||
  if ((file=fopen(filename,"wb")))
 | 
						||
  {
 | 
						||
    // On regarde si des couleurs >16 sont utilis<69>es dans l'image
 | 
						||
    for (x_pos=16;((x_pos<256) && (!Utilisation[x_pos]));x_pos++);
 | 
						||
 | 
						||
    if (x_pos==256)
 | 
						||
    {
 | 
						||
      // Cas d'une image 16 couleurs (<28>criture <20> l'ancien format)
 | 
						||
 | 
						||
      header1.Width =context->Width;
 | 
						||
      header1.Height=context->Height;
 | 
						||
 | 
						||
      if (Write_word_le(file,header1.Width)
 | 
						||
      && Write_word_le(file,header1.Height)
 | 
						||
      )
 | 
						||
      {
 | 
						||
        // Sauvegarde de l'image
 | 
						||
        Init_write_buffer();
 | 
						||
        for (y_pos=0;((y_pos<context->Height) && (!File_error));y_pos++)
 | 
						||
        {
 | 
						||
          for (x_pos=0;((x_pos<context->Width) && (!File_error));x_pos++)
 | 
						||
            if ((x_pos & 1)==0)
 | 
						||
              last_byte=(Get_pixel(context, x_pos,y_pos) << 4);
 | 
						||
            else
 | 
						||
            {
 | 
						||
              last_byte=last_byte | (Get_pixel(context, x_pos,y_pos) & 15);
 | 
						||
              Write_one_byte(file,last_byte);
 | 
						||
            }
 | 
						||
 | 
						||
          if ((x_pos & 1)==1)
 | 
						||
            Write_one_byte(file,last_byte);
 | 
						||
        }
 | 
						||
        End_write(file);
 | 
						||
      }
 | 
						||
      else
 | 
						||
        File_error=1;
 | 
						||
      fclose(file);
 | 
						||
    }
 | 
						||
    else
 | 
						||
    {
 | 
						||
      // Cas d'une image 256 couleurs (<28>criture au nouveau format)
 | 
						||
 | 
						||
      // Recherche du d<>calage
 | 
						||
      for (y_pos=0;y_pos<context->Height;y_pos++)
 | 
						||
      {
 | 
						||
        for (x_pos=0;x_pos<context->Width;x_pos++)
 | 
						||
          if (Get_pixel(context, x_pos,y_pos)!=0)
 | 
						||
            break;
 | 
						||
        if (Get_pixel(context, x_pos,y_pos)!=0)
 | 
						||
          break;
 | 
						||
      }
 | 
						||
      header2.Y_offset=y_pos;
 | 
						||
      for (x_pos=0;x_pos<context->Width;x_pos++)
 | 
						||
      {
 | 
						||
        for (y_pos=0;y_pos<context->Height;y_pos++)
 | 
						||
          if (Get_pixel(context, x_pos,y_pos)!=0)
 | 
						||
            break;
 | 
						||
        if (Get_pixel(context, x_pos,y_pos)!=0)
 | 
						||
          break;
 | 
						||
      }
 | 
						||
      header2.X_offset=x_pos;
 | 
						||
 | 
						||
      memcpy(header2.Signature,"KiSS",4); // Initialisation de la signature
 | 
						||
      header2.Kind=0x20;              // Initialisation du type (BitMaP)
 | 
						||
      header2.Nb_bits=8;               // Initialisation du nombre de bits
 | 
						||
      header2.Filler1=0;              // Initialisation du filler 1 (?)
 | 
						||
      header2.Width=context->Width-header2.X_offset; // Initialisation de la largeur
 | 
						||
      header2.Height=context->Height-header2.Y_offset; // Initialisation de la hauteur
 | 
						||
      for (x_pos=0;x_pos<16;x_pos++)  // Initialisation du filler 2 (?)
 | 
						||
        header2.Filler2[x_pos]=0;
 | 
						||
 | 
						||
      if (Write_bytes(file,header2.Signature,sizeof(header2.Signature))
 | 
						||
      && Write_byte(file,header2.Kind)
 | 
						||
      && Write_byte(file,header2.Nb_bits)
 | 
						||
      && Write_word_le(file,header2.Filler1)
 | 
						||
      && Write_word_le(file,header2.Width)
 | 
						||
      && Write_word_le(file,header2.Height)
 | 
						||
      && Write_word_le(file,header2.X_offset)
 | 
						||
      && Write_word_le(file,header2.Y_offset)
 | 
						||
      && Write_bytes(file,header2.Filler2,sizeof(header2.Filler2))
 | 
						||
      )
 | 
						||
      {
 | 
						||
        // Sauvegarde de l'image
 | 
						||
        Init_write_buffer();
 | 
						||
        for (y_pos=0;((y_pos<header2.Height) && (!File_error));y_pos++)
 | 
						||
          for (x_pos=0;((x_pos<header2.Width) && (!File_error));x_pos++)
 | 
						||
            Write_one_byte(file,Get_pixel(context, x_pos+header2.X_offset,y_pos+header2.Y_offset));
 | 
						||
        End_write(file);
 | 
						||
      }
 | 
						||
      else
 | 
						||
        File_error=1;
 | 
						||
      fclose(file);
 | 
						||
    }
 | 
						||
 | 
						||
    if (File_error)
 | 
						||
      remove(filename);
 | 
						||
  }
 | 
						||
  else
 | 
						||
    File_error=1;
 | 
						||
}
 | 
						||
 | 
						||
 | 
						||
//////////////////////////////////// KCF ////////////////////////////////////
 | 
						||
#pragma pack(1)
 | 
						||
typedef struct
 | 
						||
{
 | 
						||
  struct
 | 
						||
  {
 | 
						||
    struct
 | 
						||
    {
 | 
						||
      byte Byte1;
 | 
						||
      byte Byte2;
 | 
						||
    } color[16];
 | 
						||
  } Palette[10];
 | 
						||
} T_KCF_Header;
 | 
						||
#pragma pack()
 | 
						||
 | 
						||
// -- Tester si un fichier est au format KCF --------------------------------
 | 
						||
 | 
						||
void Test_KCF(T_IO_Context * context)
 | 
						||
{
 | 
						||
  char filename[MAX_PATH_CHARACTERS];
 | 
						||
  FILE *file;
 | 
						||
  T_KCF_Header buffer;
 | 
						||
  T_CEL_Header2 header2;
 | 
						||
  int pal_index;
 | 
						||
  int color_index;
 | 
						||
 | 
						||
  File_error=0;
 | 
						||
  Get_full_filename(filename, context->File_name, context->File_directory);
 | 
						||
  if ((file=fopen(filename, "rb")))
 | 
						||
  {
 | 
						||
    if (File_length_file(file)==sizeof(T_KCF_Header))
 | 
						||
    {
 | 
						||
      Read_bytes(file,&buffer,sizeof(T_KCF_Header));
 | 
						||
      // On v<>rifie une propri<72>t<EFBFBD> de la structure de palette:
 | 
						||
      for (pal_index=0;pal_index<10;pal_index++)
 | 
						||
        for (color_index=0;color_index<16;color_index++)
 | 
						||
          if ((buffer.Palette[pal_index].color[color_index].Byte2>>4)!=0)
 | 
						||
            File_error=1;
 | 
						||
    }
 | 
						||
    else
 | 
						||
    {
 | 
						||
      if (Read_bytes(file,header2.Signature,sizeof(header2.Signature))
 | 
						||
        && Read_byte(file,&(header2.Kind))
 | 
						||
        && Read_byte(file,&(header2.Nb_bits))
 | 
						||
        && Read_word_le(file,&(header2.Filler1))
 | 
						||
        && Read_word_le(file,&(header2.Width))
 | 
						||
        && Read_word_le(file,&(header2.Height))
 | 
						||
        && Read_word_le(file,&(header2.X_offset))
 | 
						||
        && Read_word_le(file,&(header2.Y_offset))
 | 
						||
        && Read_bytes(file,header2.Filler2,sizeof(header2.Filler2))
 | 
						||
        )
 | 
						||
      {
 | 
						||
        if (memcmp(header2.Signature,"KiSS",4)==0)
 | 
						||
        {
 | 
						||
          if (header2.Kind!=0x10)
 | 
						||
            File_error=1;
 | 
						||
        }
 | 
						||
        else
 | 
						||
          File_error=1;
 | 
						||
      }
 | 
						||
      else
 | 
						||
        File_error=1;
 | 
						||
    }
 | 
						||
    fclose(file);
 | 
						||
  }
 | 
						||
  else
 | 
						||
    File_error=1;
 | 
						||
}
 | 
						||
 | 
						||
 | 
						||
// -- Lire un fichier au format KCF -----------------------------------------
 | 
						||
 | 
						||
void Load_KCF(T_IO_Context * context)
 | 
						||
{
 | 
						||
  char filename[MAX_PATH_CHARACTERS];
 | 
						||
  FILE *file;
 | 
						||
  T_KCF_Header buffer;
 | 
						||
  T_CEL_Header2 header2;
 | 
						||
  byte bytes[3];
 | 
						||
  int pal_index;
 | 
						||
  int color_index;
 | 
						||
  int index;
 | 
						||
  long  file_size;
 | 
						||
 | 
						||
 | 
						||
  File_error=0;
 | 
						||
  Get_full_filename(filename, context->File_name, context->File_directory);
 | 
						||
  if ((file=fopen(filename, "rb")))
 | 
						||
  {
 | 
						||
    file_size=File_length_file(file);
 | 
						||
    if (file_size==sizeof(T_KCF_Header))
 | 
						||
    {
 | 
						||
      // Fichier KCF <20> l'ancien format
 | 
						||
 | 
						||
      if (Read_bytes(file,&buffer,sizeof(T_KCF_Header)))
 | 
						||
      {
 | 
						||
        // Pre_load(context, ?); // Pas possible... pas d'image...
 | 
						||
 | 
						||
        if (Config.Clear_palette)
 | 
						||
          memset(context->Palette,0,sizeof(T_Palette));
 | 
						||
 | 
						||
        // Chargement de la palette
 | 
						||
        for (pal_index=0;pal_index<10;pal_index++)
 | 
						||
          for (color_index=0;color_index<16;color_index++)
 | 
						||
          {
 | 
						||
            index=16+(pal_index*16)+color_index;
 | 
						||
            context->Palette[index].R=((buffer.Palette[pal_index].color[color_index].Byte1 >> 4) << 4);
 | 
						||
            context->Palette[index].B=((buffer.Palette[pal_index].color[color_index].Byte1 & 15) << 4);
 | 
						||
            context->Palette[index].G=((buffer.Palette[pal_index].color[color_index].Byte2 & 15) << 4);
 | 
						||
          }
 | 
						||
 | 
						||
        for (index=0;index<16;index++)
 | 
						||
        {
 | 
						||
          context->Palette[index].R=context->Palette[index+16].R;
 | 
						||
          context->Palette[index].G=context->Palette[index+16].G;
 | 
						||
          context->Palette[index].B=context->Palette[index+16].B;
 | 
						||
        }
 | 
						||
 | 
						||
        Palette_loaded(context);
 | 
						||
      }
 | 
						||
      else
 | 
						||
        File_error=1;
 | 
						||
    }
 | 
						||
    else
 | 
						||
    {
 | 
						||
      // Fichier KCF au nouveau format
 | 
						||
 | 
						||
      if (Read_bytes(file,header2.Signature,sizeof(header2.Signature))
 | 
						||
        && Read_byte(file,&(header2.Kind))
 | 
						||
        && Read_byte(file,&(header2.Nb_bits))
 | 
						||
        && Read_word_le(file,&(header2.Filler1))
 | 
						||
        && Read_word_le(file,&(header2.Width))
 | 
						||
        && Read_word_le(file,&(header2.Height))
 | 
						||
        && Read_word_le(file,&(header2.X_offset))
 | 
						||
        && Read_word_le(file,&(header2.Y_offset))
 | 
						||
        && Read_bytes(file,header2.Filler2,sizeof(header2.Filler2))
 | 
						||
        )
 | 
						||
      {
 | 
						||
        // Pre_load(context, ?); // Pas possible... pas d'image...
 | 
						||
 | 
						||
        index=(header2.Nb_bits==12)?16:0;
 | 
						||
        for (pal_index=0;pal_index<header2.Height;pal_index++)
 | 
						||
        {
 | 
						||
           // Pour chaque palette
 | 
						||
 | 
						||
           for (color_index=0;color_index<header2.Width;color_index++)
 | 
						||
           {
 | 
						||
             // Pour chaque couleur
 | 
						||
 | 
						||
             switch(header2.Nb_bits)
 | 
						||
             {
 | 
						||
               case 12: // RRRR BBBB | 0000 VVVV
 | 
						||
                 Read_bytes(file,bytes,2);
 | 
						||
                 context->Palette[index].R=(bytes[0] >> 4) << 4;
 | 
						||
                 context->Palette[index].B=(bytes[0] & 15) << 4;
 | 
						||
                 context->Palette[index].G=(bytes[1] & 15) << 4;
 | 
						||
                 break;
 | 
						||
 | 
						||
               case 24: // RRRR RRRR | VVVV VVVV | BBBB BBBB
 | 
						||
                 Read_bytes(file,bytes,3);
 | 
						||
                 context->Palette[index].R=bytes[0];
 | 
						||
                 context->Palette[index].G=bytes[1];
 | 
						||
                 context->Palette[index].B=bytes[2];
 | 
						||
             }
 | 
						||
 | 
						||
             index++;
 | 
						||
           }
 | 
						||
        }
 | 
						||
 | 
						||
        if (header2.Nb_bits==12)
 | 
						||
          for (index=0;index<16;index++)
 | 
						||
          {
 | 
						||
            context->Palette[index].R=context->Palette[index+16].R;
 | 
						||
            context->Palette[index].G=context->Palette[index+16].G;
 | 
						||
            context->Palette[index].B=context->Palette[index+16].B;
 | 
						||
          }
 | 
						||
 | 
						||
        Palette_loaded(context);
 | 
						||
      }
 | 
						||
      else
 | 
						||
        File_error=1;
 | 
						||
    }
 | 
						||
    fclose(file);
 | 
						||
  }
 | 
						||
  else
 | 
						||
    File_error=1;
 | 
						||
 | 
						||
  if (!File_error) Draw_palette_preview(context);
 | 
						||
}
 | 
						||
 | 
						||
 | 
						||
// -- Ecrire un fichier au format KCF ---------------------------------------
 | 
						||
 | 
						||
void Save_KCF(T_IO_Context * context)
 | 
						||
{
 | 
						||
  char filename[MAX_PATH_CHARACTERS];
 | 
						||
  FILE *file;
 | 
						||
  T_KCF_Header buffer;
 | 
						||
  T_CEL_Header2 header2;
 | 
						||
  byte bytes[3];
 | 
						||
  int pal_index;
 | 
						||
  int color_index;
 | 
						||
  int index;
 | 
						||
  dword Utilisation[256]; // Table d'utilisation de couleurs
 | 
						||
 | 
						||
  // On commence par compter l'utilisation de chaque couleurs
 | 
						||
  Count_used_colors(Utilisation);
 | 
						||
 | 
						||
  File_error=0;
 | 
						||
  Get_full_filename(filename, context->File_name, context->File_directory);
 | 
						||
  if ((file=fopen(filename,"wb")))
 | 
						||
  {
 | 
						||
    // Sauvegarde de la palette
 | 
						||
 | 
						||
    // On regarde si des couleurs >16 sont utilis<69>es dans l'image
 | 
						||
    for (index=16;((index<256) && (!Utilisation[index]));index++);
 | 
						||
 | 
						||
    if (index==256)
 | 
						||
    {
 | 
						||
      // Cas d'une image 16 couleurs (<28>criture <20> l'ancien format)
 | 
						||
 | 
						||
      for (pal_index=0;pal_index<10;pal_index++)
 | 
						||
        for (color_index=0;color_index<16;color_index++)
 | 
						||
        {
 | 
						||
          index=16+(pal_index*16)+color_index;
 | 
						||
          buffer.Palette[pal_index].color[color_index].Byte1=((context->Palette[index].R>>4)<<4) | (context->Palette[index].B>>4);
 | 
						||
          buffer.Palette[pal_index].color[color_index].Byte2=context->Palette[index].G>>4;
 | 
						||
        }
 | 
						||
 | 
						||
      if (! Write_bytes(file,&buffer,sizeof(T_KCF_Header)))
 | 
						||
        File_error=1;
 | 
						||
    }
 | 
						||
    else
 | 
						||
    {
 | 
						||
      // Cas d'une image 256 couleurs (<28>criture au nouveau format)
 | 
						||
 | 
						||
      memcpy(header2.Signature,"KiSS",4); // Initialisation de la signature
 | 
						||
      header2.Kind=0x10;              // Initialisation du type (PALette)
 | 
						||
      header2.Nb_bits=24;              // Initialisation du nombre de bits
 | 
						||
      header2.Filler1=0;              // Initialisation du filler 1 (?)
 | 
						||
      header2.Width=256;            // Initialisation du nombre de couleurs
 | 
						||
      header2.Height=1;              // Initialisation du nombre de palettes
 | 
						||
      header2.X_offset=0;           // Initialisation du d<>calage X
 | 
						||
      header2.Y_offset=0;           // Initialisation du d<>calage Y
 | 
						||
      for (index=0;index<16;index++) // Initialisation du filler 2 (?)
 | 
						||
        header2.Filler2[index]=0;
 | 
						||
 | 
						||
      if (!Write_bytes(file,header2.Signature,sizeof(header2.Signature))
 | 
						||
      || !Write_byte(file,header2.Kind)
 | 
						||
      || !Write_byte(file,header2.Nb_bits)
 | 
						||
      || !Write_word_le(file,header2.Filler1)
 | 
						||
      || !Write_word_le(file,header2.Width)
 | 
						||
      || !Write_word_le(file,header2.Height)
 | 
						||
      || !Write_word_le(file,header2.X_offset)
 | 
						||
      || !Write_word_le(file,header2.Y_offset)
 | 
						||
      || !Write_bytes(file,header2.Filler2,sizeof(header2.Filler2))
 | 
						||
      )
 | 
						||
        File_error=1;
 | 
						||
 | 
						||
      for (index=0;(index<256) && (!File_error);index++)
 | 
						||
      {
 | 
						||
        bytes[0]=context->Palette[index].R;
 | 
						||
        bytes[1]=context->Palette[index].G;
 | 
						||
        bytes[2]=context->Palette[index].B;
 | 
						||
        if (! Write_bytes(file,bytes,3))
 | 
						||
          File_error=1;
 | 
						||
      }
 | 
						||
    }
 | 
						||
 | 
						||
    fclose(file);
 | 
						||
 | 
						||
    if (File_error)
 | 
						||
      remove(filename);
 | 
						||
  }
 | 
						||
  else
 | 
						||
    File_error=1;
 | 
						||
}
 | 
						||
 | 
						||
 | 
						||
//////////////////////////////////// PI1 ////////////////////////////////////
 | 
						||
 | 
						||
//// DECODAGE d'une partie d'IMAGE ////
 | 
						||
 | 
						||
void PI1_8b_to_16p(byte * src,byte * dest)
 | 
						||
{
 | 
						||
  int  i;           // index du pixel <20> calculer
 | 
						||
  word byte_mask;      // Masque de decodage
 | 
						||
  word w0,w1,w2,w3; // Les 4 words bien ordonn<6E>s de la source
 | 
						||
 | 
						||
  byte_mask=0x8000;
 | 
						||
  w0=(((word)src[0])<<8) | src[1];
 | 
						||
  w1=(((word)src[2])<<8) | src[3];
 | 
						||
  w2=(((word)src[4])<<8) | src[5];
 | 
						||
  w3=(((word)src[6])<<8) | src[7];
 | 
						||
  for (i=0;i<16;i++)
 | 
						||
  {
 | 
						||
    // Pour d<>coder le pixel n<>i, il faut traiter les 4 words sur leur bit
 | 
						||
    // correspondant <20> celui du masque
 | 
						||
 | 
						||
    dest[i]=((w0 & byte_mask)?0x01:0x00) |
 | 
						||
           ((w1 & byte_mask)?0x02:0x00) |
 | 
						||
           ((w2 & byte_mask)?0x04:0x00) |
 | 
						||
           ((w3 & byte_mask)?0x08:0x00);
 | 
						||
    byte_mask>>=1;
 | 
						||
  }
 | 
						||
}
 | 
						||
 | 
						||
//// CODAGE d'une partie d'IMAGE ////
 | 
						||
 | 
						||
void PI1_16p_to_8b(byte * src,byte * dest)
 | 
						||
{
 | 
						||
  int  i;           // index du pixel <20> calculer
 | 
						||
  word byte_mask;      // Masque de codage
 | 
						||
  word w0,w1,w2,w3; // Les 4 words bien ordonn<6E>s de la destination
 | 
						||
 | 
						||
  byte_mask=0x8000;
 | 
						||
  w0=w1=w2=w3=0;
 | 
						||
  for (i=0;i<16;i++)
 | 
						||
  {
 | 
						||
    // Pour coder le pixel n<>i, il faut modifier les 4 words sur leur bit
 | 
						||
    // correspondant <20> celui du masque
 | 
						||
 | 
						||
    w0|=(src[i] & 0x01)?byte_mask:0x00;
 | 
						||
    w1|=(src[i] & 0x02)?byte_mask:0x00;
 | 
						||
    w2|=(src[i] & 0x04)?byte_mask:0x00;
 | 
						||
    w3|=(src[i] & 0x08)?byte_mask:0x00;
 | 
						||
    byte_mask>>=1;
 | 
						||
  }
 | 
						||
  dest[0]=w0 >> 8;
 | 
						||
  dest[1]=w0 & 0x00FF;
 | 
						||
  dest[2]=w1 >> 8;
 | 
						||
  dest[3]=w1 & 0x00FF;
 | 
						||
  dest[4]=w2 >> 8;
 | 
						||
  dest[5]=w2 & 0x00FF;
 | 
						||
  dest[6]=w3 >> 8;
 | 
						||
  dest[7]=w3 & 0x00FF;
 | 
						||
}
 | 
						||
 | 
						||
//// DECODAGE de la PALETTE ////
 | 
						||
 | 
						||
void PI1_decode_palette(byte * src,byte * palette)
 | 
						||
{
 | 
						||
  int i;  // Num<75>ro de la couleur trait<69>e
 | 
						||
  int ip; // index dans la palette
 | 
						||
  word w; // Word contenant le code
 | 
						||
 | 
						||
  // Sch<63>ma d'un word =
 | 
						||
  //
 | 
						||
  //    Low        High
 | 
						||
  // VVVV RRRR | 0000 BBBB
 | 
						||
  // 0321 0321 |      0321
 | 
						||
 | 
						||
  ip=0;
 | 
						||
  for (i=0;i<16;i++)
 | 
						||
  {
 | 
						||
    w=((word)src[(i*2)+1]<<8) | src[(i*2)+0];
 | 
						||
 | 
						||
    // Traitement des couleurs rouge, verte et bleue:
 | 
						||
    palette[ip++]=(((w & 0x0007) <<  1) | ((w & 0x0008) >>  3)) << 4;
 | 
						||
    palette[ip++]=(((w & 0x7000) >> 11) | ((w & 0x8000) >> 15)) << 4;
 | 
						||
    palette[ip++]=(((w & 0x0700) >>  7) | ((w & 0x0800) >> 11)) << 4;
 | 
						||
  }
 | 
						||
}
 | 
						||
 | 
						||
//// CODAGE de la PALETTE ////
 | 
						||
 | 
						||
void PI1_code_palette(byte * palette,byte * dest)
 | 
						||
{
 | 
						||
  int i;  // Num<75>ro de la couleur trait<69>e
 | 
						||
  int ip; // index dans la palette
 | 
						||
  word w; // Word contenant le code
 | 
						||
 | 
						||
  // Sch<63>ma d'un word =
 | 
						||
  //
 | 
						||
  //    Low        High
 | 
						||
  // VVVV RRRR | 0000 BBBB
 | 
						||
  // 0321 0321 |      0321
 | 
						||
 | 
						||
  ip=0;
 | 
						||
  for (i=0;i<16;i++)
 | 
						||
  {
 | 
						||
    // Traitement des couleurs rouge, verte et bleue:
 | 
						||
    w =(((word)(palette[ip]>>2) & 0x38) >> 3) | (((word)(palette[ip]>>2) & 0x04) <<  1); ip++;
 | 
						||
    w|=(((word)(palette[ip]>>2) & 0x38) << 9) | (((word)(palette[ip]>>2) & 0x04) << 13); ip++;
 | 
						||
    w|=(((word)(palette[ip]>>2) & 0x38) << 5) | (((word)(palette[ip]>>2) & 0x04) <<  9); ip++;
 | 
						||
 | 
						||
    dest[(i*2)+0]=w & 0x00FF;
 | 
						||
    dest[(i*2)+1]=(w>>8);
 | 
						||
  }
 | 
						||
}
 | 
						||
 | 
						||
 | 
						||
// -- Tester si un fichier est au format PI1 --------------------------------
 | 
						||
void Test_PI1(T_IO_Context * context)
 | 
						||
{
 | 
						||
  FILE * file;              // Fichier du fichier
 | 
						||
  char filename[MAX_PATH_CHARACTERS]; // Nom complet du fichier
 | 
						||
  int  size;              // Taille du fichier
 | 
						||
  word resolution;                 // R<>solution de l'image
 | 
						||
 | 
						||
 | 
						||
  Get_full_filename(filename, context->File_name, context->File_directory);
 | 
						||
 | 
						||
  File_error=1;
 | 
						||
 | 
						||
  // Ouverture du fichier
 | 
						||
  if ((file=fopen(filename, "rb")))
 | 
						||
  {
 | 
						||
    // V<>rification de la taille
 | 
						||
    size=File_length_file(file);
 | 
						||
    if ((size==32034) || (size==32066))
 | 
						||
    {
 | 
						||
      // Lecture et v<>rification de la r<>solution
 | 
						||
      if (Read_word_le(file,&resolution))
 | 
						||
      {
 | 
						||
        if (resolution==0x0000)
 | 
						||
          File_error=0;
 | 
						||
      }
 | 
						||
    }
 | 
						||
    // Fermeture du fichier
 | 
						||
    fclose(file);
 | 
						||
  }
 | 
						||
}
 | 
						||
 | 
						||
 | 
						||
// -- Lire un fichier au format PI1 -----------------------------------------
 | 
						||
void Load_PI1(T_IO_Context * context)
 | 
						||
{
 | 
						||
  char filename[MAX_PATH_CHARACTERS]; // Nom complet du fichier
 | 
						||
  FILE *file;
 | 
						||
  word x_pos,y_pos;
 | 
						||
  byte * buffer;
 | 
						||
  byte * ptr;
 | 
						||
  byte pixels[320];
 | 
						||
 | 
						||
  Get_full_filename(filename, context->File_name, context->File_directory);
 | 
						||
 | 
						||
  File_error=0;
 | 
						||
  if ((file=fopen(filename, "rb")))
 | 
						||
  {
 | 
						||
    // allocation d'un buffer m<>moire
 | 
						||
    buffer=(byte *)malloc(32034);
 | 
						||
    if (buffer!=NULL)
 | 
						||
    {
 | 
						||
      // Lecture du fichier dans le buffer
 | 
						||
      if (Read_bytes(file,buffer,32034))
 | 
						||
      {
 | 
						||
        // Initialisation de la preview
 | 
						||
        Pre_load(context, 320,200,File_length_file(file),FORMAT_PI1,PIXEL_SIMPLE,0);
 | 
						||
        if (File_error==0)
 | 
						||
        {
 | 
						||
          // Initialisation de la palette
 | 
						||
          if (Config.Clear_palette)
 | 
						||
            memset(context->Palette,0,sizeof(T_Palette));
 | 
						||
          PI1_decode_palette(buffer+2,(byte *)context->Palette);
 | 
						||
          Palette_loaded(context);
 | 
						||
 | 
						||
          context->Width=320;
 | 
						||
          context->Height=200;
 | 
						||
 | 
						||
          // Chargement/d<>compression de l'image
 | 
						||
          ptr=buffer+34;
 | 
						||
          for (y_pos=0;y_pos<200;y_pos++)
 | 
						||
          {
 | 
						||
            for (x_pos=0;x_pos<(320>>4);x_pos++)
 | 
						||
            {
 | 
						||
              PI1_8b_to_16p(ptr,pixels+(x_pos<<4));
 | 
						||
              ptr+=8;
 | 
						||
            }
 | 
						||
            for (x_pos=0;x_pos<320;x_pos++)
 | 
						||
              Set_pixel(context, x_pos,y_pos,pixels[x_pos]);
 | 
						||
          }
 | 
						||
        }
 | 
						||
      }
 | 
						||
      else
 | 
						||
        File_error=1;
 | 
						||
      free(buffer);
 | 
						||
    }
 | 
						||
    else
 | 
						||
      File_error=1;
 | 
						||
    fclose(file);
 | 
						||
  }
 | 
						||
  else
 | 
						||
    File_error=1;
 | 
						||
}
 | 
						||
 | 
						||
 | 
						||
// -- Sauver un fichier au format PI1 ---------------------------------------
 | 
						||
void Save_PI1(T_IO_Context * context)
 | 
						||
{
 | 
						||
  char filename[MAX_PATH_CHARACTERS]; // Nom complet du fichier
 | 
						||
  FILE *file;
 | 
						||
  short x_pos,y_pos;
 | 
						||
  byte * buffer;
 | 
						||
  byte * ptr;
 | 
						||
  byte pixels[320];
 | 
						||
 | 
						||
  Get_full_filename(filename, context->File_name, context->File_directory);
 | 
						||
 | 
						||
  File_error=0;
 | 
						||
  // Ouverture du fichier
 | 
						||
  if ((file=fopen(filename,"wb")))
 | 
						||
  {
 | 
						||
    // allocation d'un buffer m<>moire
 | 
						||
    buffer=(byte *)malloc(32066);
 | 
						||
    // Codage de la r<>solution
 | 
						||
    buffer[0]=0x00;
 | 
						||
    buffer[1]=0x00;
 | 
						||
    // Codage de la palette
 | 
						||
    PI1_code_palette((byte *)context->Palette,buffer+2);
 | 
						||
    // Codage de l'image
 | 
						||
    ptr=buffer+34;
 | 
						||
    for (y_pos=0;y_pos<200;y_pos++)
 | 
						||
    {
 | 
						||
      // Codage de la ligne
 | 
						||
      memset(pixels,0,320);
 | 
						||
      if (y_pos<context->Height)
 | 
						||
      {
 | 
						||
        for (x_pos=0;(x_pos<320) && (x_pos<context->Width);x_pos++)
 | 
						||
          pixels[x_pos]=Get_pixel(context, x_pos,y_pos);
 | 
						||
      }
 | 
						||
 | 
						||
      for (x_pos=0;x_pos<(320>>4);x_pos++)
 | 
						||
      {
 | 
						||
        PI1_16p_to_8b(pixels+(x_pos<<4),ptr);
 | 
						||
        ptr+=8;
 | 
						||
      }
 | 
						||
    }
 | 
						||
 | 
						||
    memset(buffer+32034,0,32); // 32 extra NULL bytes at the end of the file to make ST Deluxe Paint happy
 | 
						||
 | 
						||
    if (Write_bytes(file,buffer,32066))
 | 
						||
    {
 | 
						||
      fclose(file);
 | 
						||
    }
 | 
						||
    else // Error d'<27>criture (disque plein ou prot<6F>g<EFBFBD>)
 | 
						||
    {
 | 
						||
      fclose(file);
 | 
						||
      remove(filename);
 | 
						||
      File_error=1;
 | 
						||
    }
 | 
						||
    // Lib<69>ration du buffer m<>moire
 | 
						||
    free(buffer);
 | 
						||
  }
 | 
						||
  else
 | 
						||
  {
 | 
						||
    fclose(file);
 | 
						||
    remove(filename);
 | 
						||
    File_error=1;
 | 
						||
  }
 | 
						||
}
 | 
						||
 | 
						||
 | 
						||
//////////////////////////////////// PC1 ////////////////////////////////////
 | 
						||
 | 
						||
//// DECOMPRESSION d'un buffer selon la m<>thode PACKBITS ////
 | 
						||
 | 
						||
void PC1_uncompress_packbits(byte * src,byte * dest)
 | 
						||
{
 | 
						||
  int is,id; // Les indices de parcour des buffers
 | 
						||
  int n;     // Octet de contr<74>le
 | 
						||
 | 
						||
  for (is=id=0;id<32000;)
 | 
						||
  {
 | 
						||
    n=src[is++];
 | 
						||
 | 
						||
    if (n & 0x80)
 | 
						||
    {
 | 
						||
      // Recopier src[is] -n+1 fois
 | 
						||
      n=257-n;
 | 
						||
      for (;(n>0) && (id<32000);n--)
 | 
						||
        dest[id++]=src[is];
 | 
						||
      is++;
 | 
						||
    }
 | 
						||
    else
 | 
						||
    {
 | 
						||
      // Recopier n+1 octets litt<74>ralement
 | 
						||
      n=n+1;
 | 
						||
      for (;(n>0) && (id<32000);n--)
 | 
						||
        dest[id++]=src[is++];
 | 
						||
    }
 | 
						||
 | 
						||
    // Contr<74>le des erreurs
 | 
						||
    if (n>0)
 | 
						||
      File_error=1;
 | 
						||
  }
 | 
						||
}
 | 
						||
 | 
						||
//// COMPRESSION d'un buffer selon la m<>thode PACKBITS ////
 | 
						||
 | 
						||
void PC1_compress_packbits(byte * src,byte * dest,int source_size,int * dest_size)
 | 
						||
{
 | 
						||
  int is; // index dans la source
 | 
						||
  int id; // index dans la destination
 | 
						||
  int ir; // index de   la r<>p<EFBFBD>tition
 | 
						||
  int n;  // Taille des s<>quences
 | 
						||
  int repet; // "Il y a r<>p<EFBFBD>tition"
 | 
						||
 | 
						||
  for (is=id=0;is<source_size;)
 | 
						||
  {
 | 
						||
    // On recherche le 1er endroit o<> il y a r<>p<EFBFBD>tition d'au moins 3 valeurs
 | 
						||
    // identiques
 | 
						||
 | 
						||
    repet=0;
 | 
						||
    for (ir=is;ir<source_size-2;ir++)
 | 
						||
    {
 | 
						||
      if ((src[ir]==src[ir+1]) && (src[ir+1]==src[ir+2]))
 | 
						||
      {
 | 
						||
        repet=1;
 | 
						||
        break;
 | 
						||
      }
 | 
						||
      if ((ir-is)+1==40)
 | 
						||
        break;
 | 
						||
    }
 | 
						||
 | 
						||
    // On code la partie sans r<>p<EFBFBD>titions
 | 
						||
    if (ir!=is)
 | 
						||
    {
 | 
						||
      n=(ir-is)+1;
 | 
						||
      dest[id++]=n-1;
 | 
						||
      for (;n>0;n--)
 | 
						||
        dest[id++]=src[is++];
 | 
						||
    }
 | 
						||
 | 
						||
    // On code la partie sans r<>p<EFBFBD>titions
 | 
						||
    if (repet)
 | 
						||
    {
 | 
						||
      // On compte la quantit<69> de fois qu'il faut r<>p<EFBFBD>ter la valeur
 | 
						||
      for (ir+=3;ir<source_size;ir++)
 | 
						||
      {
 | 
						||
        if (src[ir]!=src[is])
 | 
						||
          break;
 | 
						||
        if ((ir-is)+1==40)
 | 
						||
          break;
 | 
						||
      }
 | 
						||
      n=(ir-is);
 | 
						||
      dest[id++]=257-n;
 | 
						||
      dest[id++]=src[is];
 | 
						||
      is=ir;
 | 
						||
    }
 | 
						||
  }
 | 
						||
 | 
						||
  // On renseigne la taille du buffer compress<73>
 | 
						||
  *dest_size=id;
 | 
						||
}
 | 
						||
 | 
						||
//// DECODAGE d'une partie d'IMAGE ////
 | 
						||
 | 
						||
// Transformation de 4 plans de bits en 1 ligne de pixels
 | 
						||
 | 
						||
void PC1_4bp_to_1line(byte * src0,byte * src1,byte * src2,byte * src3,byte * dest)
 | 
						||
{
 | 
						||
  int  i,j;         // Compteurs
 | 
						||
  int  ip;          // index du pixel <20> calculer
 | 
						||
  byte byte_mask;      // Masque de decodage
 | 
						||
  byte b0,b1,b2,b3; // Les 4 octets des plans bits sources
 | 
						||
 | 
						||
  ip=0;
 | 
						||
  // Pour chacun des 40 octets des plans de bits
 | 
						||
  for (i=0;i<40;i++)
 | 
						||
  {
 | 
						||
    b0=src0[i];
 | 
						||
    b1=src1[i];
 | 
						||
    b2=src2[i];
 | 
						||
    b3=src3[i];
 | 
						||
    // Pour chacun des 8 bits des octets
 | 
						||
    byte_mask=0x80;
 | 
						||
    for (j=0;j<8;j++)
 | 
						||
    {
 | 
						||
      dest[ip++]=((b0 & byte_mask)?0x01:0x00) |
 | 
						||
                ((b1 & byte_mask)?0x02:0x00) |
 | 
						||
                ((b2 & byte_mask)?0x04:0x00) |
 | 
						||
                ((b3 & byte_mask)?0x08:0x00);
 | 
						||
      byte_mask>>=1;
 | 
						||
    }
 | 
						||
  }
 | 
						||
}
 | 
						||
 | 
						||
//// CODAGE d'une partie d'IMAGE ////
 | 
						||
 | 
						||
// Transformation d'1 ligne de pixels en 4 plans de bits
 | 
						||
 | 
						||
void PC1_1line_to_4bp(byte * src,byte * dst0,byte * dst1,byte * dst2,byte * dst3)
 | 
						||
{
 | 
						||
  int  i,j;         // Compteurs
 | 
						||
  int  ip;          // index du pixel <20> calculer
 | 
						||
  byte byte_mask;      // Masque de decodage
 | 
						||
  byte b0,b1,b2,b3; // Les 4 octets des plans bits sources
 | 
						||
 | 
						||
  ip=0;
 | 
						||
  // Pour chacun des 40 octets des plans de bits
 | 
						||
  for (i=0;i<40;i++)
 | 
						||
  {
 | 
						||
    // Pour chacun des 8 bits des octets
 | 
						||
    byte_mask=0x80;
 | 
						||
    b0=b1=b2=b3=0;
 | 
						||
    for (j=0;j<8;j++)
 | 
						||
    {
 | 
						||
      b0|=(src[ip] & 0x01)?byte_mask:0x00;
 | 
						||
      b1|=(src[ip] & 0x02)?byte_mask:0x00;
 | 
						||
      b2|=(src[ip] & 0x04)?byte_mask:0x00;
 | 
						||
      b3|=(src[ip] & 0x08)?byte_mask:0x00;
 | 
						||
      ip++;
 | 
						||
      byte_mask>>=1;
 | 
						||
    }
 | 
						||
    dst0[i]=b0;
 | 
						||
    dst1[i]=b1;
 | 
						||
    dst2[i]=b2;
 | 
						||
    dst3[i]=b3;
 | 
						||
  }
 | 
						||
}
 | 
						||
 | 
						||
 | 
						||
// -- Tester si un fichier est au format PC1 --------------------------------
 | 
						||
void Test_PC1(T_IO_Context * context)
 | 
						||
{
 | 
						||
  FILE *file;              // Fichier du fichier
 | 
						||
  char filename[MAX_PATH_CHARACTERS]; // Nom complet du fichier
 | 
						||
  int  size;              // Taille du fichier
 | 
						||
  word resolution;                 // R<>solution de l'image
 | 
						||
 | 
						||
 | 
						||
  Get_full_filename(filename, context->File_name, context->File_directory);
 | 
						||
 | 
						||
  File_error=1;
 | 
						||
 | 
						||
  // Ouverture du fichier
 | 
						||
  if ((file=fopen(filename, "rb")))
 | 
						||
  {
 | 
						||
    // V<>rification de la taille
 | 
						||
    size=File_length_file(file);
 | 
						||
    if ((size<=32066))
 | 
						||
    {
 | 
						||
      // Lecture et v<>rification de la r<>solution
 | 
						||
      if (Read_word_le(file,&resolution))
 | 
						||
      {
 | 
						||
        if (resolution==0x0080)
 | 
						||
          File_error=0;
 | 
						||
      }
 | 
						||
    }
 | 
						||
    // Fermeture du fichier
 | 
						||
    fclose(file);
 | 
						||
  }
 | 
						||
}
 | 
						||
 | 
						||
 | 
						||
// -- Lire un fichier au format PC1 -----------------------------------------
 | 
						||
void Load_PC1(T_IO_Context * context)
 | 
						||
{
 | 
						||
  char filename[MAX_PATH_CHARACTERS]; // Nom complet du fichier
 | 
						||
  FILE *file;
 | 
						||
  int  size;
 | 
						||
  word x_pos,y_pos;
 | 
						||
  byte * buffercomp;
 | 
						||
  byte * bufferdecomp;
 | 
						||
  byte * ptr;
 | 
						||
  byte pixels[320];
 | 
						||
 | 
						||
  Get_full_filename(filename, context->File_name, context->File_directory);
 | 
						||
 | 
						||
  File_error=0;
 | 
						||
  if ((file=fopen(filename, "rb")))
 | 
						||
  {
 | 
						||
    size=File_length_file(file);
 | 
						||
    // allocation des buffers m<>moire
 | 
						||
    buffercomp=(byte *)malloc(size);
 | 
						||
    bufferdecomp=(byte *)malloc(32000);
 | 
						||
    if ( (buffercomp!=NULL) && (bufferdecomp!=NULL) )
 | 
						||
    {
 | 
						||
      // Lecture du fichier dans le buffer
 | 
						||
      if (Read_bytes(file,buffercomp,size))
 | 
						||
      {
 | 
						||
        // Initialisation de la preview
 | 
						||
        Pre_load(context, 320,200,File_length_file(file),FORMAT_PC1,PIXEL_SIMPLE,0);
 | 
						||
        if (File_error==0)
 | 
						||
        {
 | 
						||
          // Initialisation de la palette
 | 
						||
          if (Config.Clear_palette)
 | 
						||
            memset(context->Palette,0,sizeof(T_Palette));
 | 
						||
          PI1_decode_palette(buffercomp+2,(byte *)context->Palette);
 | 
						||
          Palette_loaded(context);
 | 
						||
 | 
						||
          context->Width=320;
 | 
						||
          context->Height=200;
 | 
						||
 | 
						||
          // D<>compression du buffer
 | 
						||
          PC1_uncompress_packbits(buffercomp+34,bufferdecomp);
 | 
						||
 | 
						||
          // D<>codage de l'image
 | 
						||
          ptr=bufferdecomp;
 | 
						||
          for (y_pos=0;y_pos<200;y_pos++)
 | 
						||
          {
 | 
						||
            // D<>codage de la scanline
 | 
						||
            PC1_4bp_to_1line(ptr,ptr+40,ptr+80,ptr+120,pixels);
 | 
						||
            ptr+=160;
 | 
						||
            // Chargement de la ligne
 | 
						||
            for (x_pos=0;x_pos<320;x_pos++)
 | 
						||
              Set_pixel(context, x_pos,y_pos,pixels[x_pos]);
 | 
						||
          }
 | 
						||
        }
 | 
						||
      }
 | 
						||
      else
 | 
						||
        File_error=1;
 | 
						||
      free(bufferdecomp);
 | 
						||
      free(buffercomp);
 | 
						||
    }
 | 
						||
    else
 | 
						||
    {
 | 
						||
      File_error=1;
 | 
						||
      free(bufferdecomp);
 | 
						||
      free(buffercomp);
 | 
						||
    }
 | 
						||
    fclose(file);
 | 
						||
  }
 | 
						||
  else
 | 
						||
    File_error=1;
 | 
						||
}
 | 
						||
 | 
						||
 | 
						||
// -- Sauver un fichier au format PC1 ---------------------------------------
 | 
						||
void Save_PC1(T_IO_Context * context)
 | 
						||
{
 | 
						||
  char filename[MAX_PATH_CHARACTERS]; // Nom complet du fichier
 | 
						||
  FILE *file;
 | 
						||
  int   size;
 | 
						||
  short x_pos,y_pos;
 | 
						||
  byte * buffercomp;
 | 
						||
  byte * bufferdecomp;
 | 
						||
  byte * ptr;
 | 
						||
  byte pixels[320];
 | 
						||
 | 
						||
  Get_full_filename(filename, context->File_name, context->File_directory);
 | 
						||
 | 
						||
  File_error=0;
 | 
						||
  // Ouverture du fichier
 | 
						||
  if ((file=fopen(filename,"wb")))
 | 
						||
  {
 | 
						||
    // Allocation des buffers m<>moire
 | 
						||
    bufferdecomp=(byte *)malloc(32000);
 | 
						||
    buffercomp  =(byte *)malloc(64066);
 | 
						||
    // Codage de la r<>solution
 | 
						||
    buffercomp[0]=0x80;
 | 
						||
    buffercomp[1]=0x00;
 | 
						||
    // Codage de la palette
 | 
						||
    PI1_code_palette((byte *)context->Palette,buffercomp+2);
 | 
						||
    // Codage de l'image
 | 
						||
    ptr=bufferdecomp;
 | 
						||
    for (y_pos=0;y_pos<200;y_pos++)
 | 
						||
    {
 | 
						||
      // Codage de la ligne
 | 
						||
      memset(pixels,0,320);
 | 
						||
      if (y_pos<context->Height)
 | 
						||
      {
 | 
						||
        for (x_pos=0;(x_pos<320) && (x_pos<context->Width);x_pos++)
 | 
						||
          pixels[x_pos]=Get_pixel(context, x_pos,y_pos);
 | 
						||
      }
 | 
						||
 | 
						||
      // Encodage de la scanline
 | 
						||
      PC1_1line_to_4bp(pixels,ptr,ptr+40,ptr+80,ptr+120);
 | 
						||
      ptr+=160;
 | 
						||
    }
 | 
						||
 | 
						||
    // Compression du buffer
 | 
						||
    PC1_compress_packbits(bufferdecomp,buffercomp+34,32000,&size);
 | 
						||
    size+=34;
 | 
						||
    for (x_pos=0;x_pos<16;x_pos++)
 | 
						||
      buffercomp[size++]=0;
 | 
						||
 | 
						||
    if (Write_bytes(file,buffercomp,size))
 | 
						||
    {
 | 
						||
      fclose(file);
 | 
						||
    }
 | 
						||
    else // Error d'<27>criture (disque plein ou prot<6F>g<EFBFBD>)
 | 
						||
    {
 | 
						||
      fclose(file);
 | 
						||
      remove(filename);
 | 
						||
      File_error=1;
 | 
						||
    }
 | 
						||
    // Lib<69>ration des buffers m<>moire
 | 
						||
    free(bufferdecomp);
 | 
						||
    free(buffercomp);
 | 
						||
  }
 | 
						||
  else
 | 
						||
  {
 | 
						||
    fclose(file);
 | 
						||
    remove(filename);
 | 
						||
    File_error=1;
 | 
						||
  }
 | 
						||
}
 | 
						||
 | 
						||
 | 
						||
//////////////////////////////////// NEO ////////////////////////////////////
 | 
						||
 | 
						||
void Test_NEO(T_IO_Context * context)
 | 
						||
{
 | 
						||
  FILE *file;              // Fichier du fichier
 | 
						||
  char filename[MAX_PATH_CHARACTERS]; // Nom complet du fichier
 | 
						||
  int  size;              // Taille du fichier
 | 
						||
  word resolution;                 // R<>solution de l'image
 | 
						||
 | 
						||
 | 
						||
  Get_full_filename(filename, context->File_name, context->File_directory);
 | 
						||
 | 
						||
  File_error=1;
 | 
						||
 | 
						||
  // Ouverture du fichier
 | 
						||
  if ((file=fopen(filename, "rb")))
 | 
						||
  {
 | 
						||
    // V<>rification de la taille
 | 
						||
    size=File_length_file(file);
 | 
						||
    if ((size==32128))
 | 
						||
    {
 | 
						||
      // Flag word : toujours 0
 | 
						||
      if (Read_word_le(file,&resolution))
 | 
						||
      {
 | 
						||
        if (resolution == 0)
 | 
						||
          File_error = 0;
 | 
						||
      }
 | 
						||
 | 
						||
      // Lecture et v<>rification de la r<>solution
 | 
						||
      if (Read_word_le(file,&resolution))
 | 
						||
      {
 | 
						||
        if (resolution==0 || resolution==1 || resolution==2)
 | 
						||
          File_error |= 0;
 | 
						||
      }
 | 
						||
    }
 | 
						||
    // Fermeture du fichier
 | 
						||
    fclose(file);
 | 
						||
  }
 | 
						||
 | 
						||
}
 | 
						||
 | 
						||
void Load_NEO(T_IO_Context * context)
 | 
						||
{
 | 
						||
  char filename[MAX_PATH_CHARACTERS]; // Nom complet du fichier
 | 
						||
  FILE *file;
 | 
						||
  word x_pos,y_pos;
 | 
						||
  byte * buffer;
 | 
						||
  byte * ptr;
 | 
						||
  byte pixels[320];
 | 
						||
 | 
						||
  Get_full_filename(filename, context->File_name, context->File_directory);
 | 
						||
 | 
						||
  File_error=0;
 | 
						||
  if ((file=fopen(filename, "rb")))
 | 
						||
  {
 | 
						||
    // allocation d'un buffer m<>moire
 | 
						||
    buffer=(byte *)malloc(32128);
 | 
						||
    if (buffer!=NULL)
 | 
						||
    {
 | 
						||
      // Lecture du fichier dans le buffer
 | 
						||
      if (Read_bytes(file,buffer,32128))
 | 
						||
      {
 | 
						||
        // Initialisation de la preview
 | 
						||
        Pre_load(context, 320,200,File_length_file(file),FORMAT_NEO,PIXEL_SIMPLE,0);
 | 
						||
        if (File_error==0)
 | 
						||
        {
 | 
						||
          // Initialisation de la palette
 | 
						||
          if (Config.Clear_palette)
 | 
						||
            memset(context->Palette,0,sizeof(T_Palette));
 | 
						||
          // on saute la r<>solution et le flag, chacun 2 bits
 | 
						||
          PI1_decode_palette(buffer+4,(byte *)context->Palette);
 | 
						||
          Palette_loaded(context);
 | 
						||
 | 
						||
          context->Width=320;
 | 
						||
          context->Height=200;
 | 
						||
 | 
						||
          // Chargement/d<>compression de l'image
 | 
						||
          ptr=buffer+128;
 | 
						||
          for (y_pos=0;y_pos<200;y_pos++)
 | 
						||
          {
 | 
						||
            for (x_pos=0;x_pos<(320>>4);x_pos++)
 | 
						||
            {
 | 
						||
              PI1_8b_to_16p(ptr,pixels+(x_pos<<4));
 | 
						||
              ptr+=8;
 | 
						||
            }
 | 
						||
            for (x_pos=0;x_pos<320;x_pos++)
 | 
						||
              Set_pixel(context, x_pos,y_pos,pixels[x_pos]);
 | 
						||
          }
 | 
						||
        }
 | 
						||
      }
 | 
						||
      else
 | 
						||
        File_error=1;
 | 
						||
      free(buffer);
 | 
						||
    }
 | 
						||
    else
 | 
						||
      File_error=1;
 | 
						||
    fclose(file);
 | 
						||
  }
 | 
						||
  else
 | 
						||
    File_error=1;
 | 
						||
}
 | 
						||
 | 
						||
void Save_NEO(T_IO_Context * context)
 | 
						||
{
 | 
						||
  char filename[MAX_PATH_CHARACTERS]; // Nom complet du fichier
 | 
						||
  FILE *file;
 | 
						||
  short x_pos,y_pos;
 | 
						||
  byte * buffer;
 | 
						||
  byte * ptr;
 | 
						||
  byte pixels[320];
 | 
						||
 | 
						||
  Get_full_filename(filename, context->File_name, context->File_directory);
 | 
						||
 | 
						||
  File_error=0;
 | 
						||
  // Ouverture du fichier
 | 
						||
  if ((file=fopen(filename,"wb")))
 | 
						||
  {
 | 
						||
    // allocation d'un buffer m<>moire
 | 
						||
    buffer=(byte *)malloc(32128);
 | 
						||
    // Codage de la r<>solution
 | 
						||
    buffer[0]=0x00;
 | 
						||
    buffer[1]=0x00;
 | 
						||
    buffer[2]=0x00;
 | 
						||
    buffer[3]=0x00;
 | 
						||
    // Codage de la palette
 | 
						||
    PI1_code_palette((byte *)context->Palette,buffer+4);
 | 
						||
    // Codage de l'image
 | 
						||
    ptr=buffer+128;
 | 
						||
    for (y_pos=0;y_pos<200;y_pos++)
 | 
						||
    {
 | 
						||
      // Codage de la ligne
 | 
						||
      memset(pixels,0,320);
 | 
						||
      if (y_pos<context->Height)
 | 
						||
      {
 | 
						||
        for (x_pos=0;(x_pos<320) && (x_pos<context->Width);x_pos++)
 | 
						||
          pixels[x_pos]=Get_pixel(context, x_pos,y_pos);
 | 
						||
      }
 | 
						||
 | 
						||
      for (x_pos=0;x_pos<(320>>4);x_pos++)
 | 
						||
      {
 | 
						||
        PI1_16p_to_8b(pixels+(x_pos<<4),ptr);
 | 
						||
        ptr+=8;
 | 
						||
      }
 | 
						||
    }
 | 
						||
 | 
						||
    if (Write_bytes(file,buffer,32128))
 | 
						||
    {
 | 
						||
      fclose(file);
 | 
						||
    }
 | 
						||
    else // Error d'<27>criture (disque plein ou prot<6F>g<EFBFBD>)
 | 
						||
    {
 | 
						||
      fclose(file);
 | 
						||
      remove(filename);
 | 
						||
      File_error=1;
 | 
						||
    }
 | 
						||
    // Lib<69>ration du buffer m<>moire
 | 
						||
    free(buffer);
 | 
						||
  }
 | 
						||
  else
 | 
						||
  {
 | 
						||
    fclose(file);
 | 
						||
    remove(filename);
 | 
						||
    File_error=1;
 | 
						||
  }
 | 
						||
}
 | 
						||
 | 
						||
//////////////////////////////////// C64 ////////////////////////////////////
 | 
						||
void Test_C64(T_IO_Context * context)
 | 
						||
{  
 | 
						||
    FILE* file;
 | 
						||
    char filename[MAX_PATH_CHARACTERS];
 | 
						||
    long file_size;
 | 
						||
  
 | 
						||
    Get_full_filename(filename, context->File_name, context->File_directory);
 | 
						||
  
 | 
						||
    file = fopen(filename,"rb");
 | 
						||
  
 | 
						||
    if (file)
 | 
						||
    {
 | 
						||
        file_size = File_length_file(file);
 | 
						||
        switch (file_size)
 | 
						||
        {
 | 
						||
            case 1000: // screen or color
 | 
						||
            case 1002: // (screen or color) + loadaddr
 | 
						||
            case 8000: // raw bitmap
 | 
						||
            case 8002: // raw bitmap with loadaddr
 | 
						||
            case 9000: // bitmap + screen
 | 
						||
            case 9002: // bitmap + screen + loadaddr
 | 
						||
            case 10001: // multicolor
 | 
						||
            case 10003: // multicolor + loadaddr
 | 
						||
                File_error = 0;
 | 
						||
                break;
 | 
						||
            default: // then we don't know for now.
 | 
						||
            File_error = 1;
 | 
						||
        }
 | 
						||
        fclose (file);
 | 
						||
    }
 | 
						||
    else
 | 
						||
    {
 | 
						||
        File_error = 1;
 | 
						||
    }
 | 
						||
}
 | 
						||
 | 
						||
void Load_C64_hires(T_IO_Context *context, byte *bitmap, byte *colors)
 | 
						||
{
 | 
						||
    int cx,cy,x,y,c[4],pixel,color;
 | 
						||
  
 | 
						||
    for(cy=0; cy<25; cy++)
 | 
						||
    {
 | 
						||
        for(cx=0; cx<40; cx++)
 | 
						||
        {
 | 
						||
            c[1]=colors[cy*40+cx]&15;
 | 
						||
            c[0]=colors[cy*40+cx]>>4;
 | 
						||
            for(y=0; y<8; y++)
 | 
						||
            {
 | 
						||
                pixel=bitmap[cy*320+cx*8+y];
 | 
						||
                for(x=0; x<8; x++)
 | 
						||
                {
 | 
						||
                    color=c[pixel&(1<<(7-x))?1:0];
 | 
						||
                    Set_pixel(context, cx*8+x,cy*8+y,color);
 | 
						||
                }
 | 
						||
            }
 | 
						||
        }
 | 
						||
    }
 | 
						||
}
 | 
						||
 | 
						||
void Load_C64_multi(T_IO_Context *context, byte *bitmap, byte *colors, byte *nybble, byte background)
 | 
						||
{
 | 
						||
    int cx,cy,x,y,c[4],pixel,color;
 | 
						||
    c[0]=background;
 | 
						||
    for(cy=0; cy<25; cy++)
 | 
						||
    {
 | 
						||
        for(cx=0; cx<40; cx++)
 | 
						||
        {
 | 
						||
            c[1]=colors[cy*40+cx]>>4;
 | 
						||
            c[2]=colors[cy*40+cx]&15;
 | 
						||
            c[3]=nybble[cy*40+cx];
 | 
						||
                
 | 
						||
            for(y=0; y<8; y++)
 | 
						||
            {
 | 
						||
                pixel=bitmap[cy*320+cx*8+y];
 | 
						||
                for(x=0; x<4; x++)
 | 
						||
                {
 | 
						||
                    color=c[(pixel&3)];
 | 
						||
                    pixel>>=2;
 | 
						||
                    Set_pixel(context, cx*4+(3-x),cy*8+y,color);
 | 
						||
                }
 | 
						||
            }
 | 
						||
        }
 | 
						||
    }
 | 
						||
}
 | 
						||
 | 
						||
void Load_C64(T_IO_Context * context)
 | 
						||
{    
 | 
						||
    FILE* file;
 | 
						||
    char filename[MAX_PATH_CHARACTERS];
 | 
						||
    long file_size;
 | 
						||
    int i;
 | 
						||
    byte background,hasLoadAddr=0;
 | 
						||
    int loadFormat=0;
 | 
						||
    enum c64_format {F_hires,F_multi,F_bitmap,F_screen,F_color};
 | 
						||
    const char *c64_format_names[]={"hires","multicolor","bitmap","screen","color"};
 | 
						||
    
 | 
						||
    // Palette from http://www.pepto.de/projects/colorvic/
 | 
						||
    byte pal[48]={
 | 
						||
      0x00, 0x00, 0x00, 
 | 
						||
      0xFF, 0xFF, 0xFF, 
 | 
						||
      0x68, 0x37, 0x2B, 
 | 
						||
      0x70, 0xA4, 0xB2, 
 | 
						||
      0x6F, 0x3D, 0x86, 
 | 
						||
      0x58, 0x8D, 0x43, 
 | 
						||
      0x35, 0x28, 0x79, 
 | 
						||
      0xB8, 0xC7, 0x6F, 
 | 
						||
      0x6F, 0x4F, 0x25, 
 | 
						||
      0x43, 0x39, 0x00, 
 | 
						||
      0x9A, 0x67, 0x59, 
 | 
						||
      0x44, 0x44, 0x44, 
 | 
						||
      0x6C, 0x6C, 0x6C, 
 | 
						||
      0x9A, 0xD2, 0x84, 
 | 
						||
      0x6C, 0x5E, 0xB5, 
 | 
						||
      0x95, 0x95, 0x95};
 | 
						||
  
 | 
						||
    byte bitmap[8000],colors[1000],nybble[1000];
 | 
						||
    word width=320, height=200;
 | 
						||
    
 | 
						||
    Get_full_filename(filename, context->File_name, context->File_directory);
 | 
						||
    file = fopen(filename,"rb");
 | 
						||
  
 | 
						||
    if (file)
 | 
						||
    {
 | 
						||
    File_error=0;
 | 
						||
    file_size = File_length_file(file);
 | 
						||
 | 
						||
    switch (file_size)
 | 
						||
        {
 | 
						||
            case 1000: // screen or color
 | 
						||
                hasLoadAddr=0;
 | 
						||
                loadFormat=F_screen;
 | 
						||
                break;
 | 
						||
                
 | 
						||
            case 1002: // (screen or color) + loadaddr
 | 
						||
                hasLoadAddr=1;
 | 
						||
                loadFormat=F_screen;
 | 
						||
                break;
 | 
						||
                    
 | 
						||
            case 8000: // raw bitmap
 | 
						||
                hasLoadAddr=0;
 | 
						||
                loadFormat=F_bitmap;
 | 
						||
                    
 | 
						||
            case 8002: // raw bitmap with loadaddr
 | 
						||
                hasLoadAddr=1;
 | 
						||
                loadFormat=F_bitmap;
 | 
						||
                break;
 | 
						||
                    
 | 
						||
            case 9000: // bitmap + screen
 | 
						||
                hasLoadAddr=0;
 | 
						||
                loadFormat=F_hires;
 | 
						||
                break;
 | 
						||
                    
 | 
						||
            case 9002: // bitmap + screen + loadaddr
 | 
						||
                hasLoadAddr=1;
 | 
						||
                loadFormat=F_hires;
 | 
						||
                break;
 | 
						||
                    
 | 
						||
            case 10001: // multicolor
 | 
						||
                hasLoadAddr=0;
 | 
						||
                loadFormat=F_multi;
 | 
						||
                break;
 | 
						||
                    
 | 
						||
            case 10003: // multicolor + loadaddr
 | 
						||
                hasLoadAddr=1;
 | 
						||
                loadFormat=F_multi;
 | 
						||
                break;
 | 
						||
                    
 | 
						||
            default: // then we don't know what it is.
 | 
						||
                File_error = 1;
 | 
						||
 | 
						||
        }
 | 
						||
        
 | 
						||
        memcpy(context->Palette,pal,48); // this set the software palette for grafx2
 | 
						||
        Palette_loaded(context); // Always call it if you change the palette
 | 
						||
                
 | 
						||
    if (file_size>9002)
 | 
						||
        width=160;
 | 
						||
                
 | 
						||
    if (hasLoadAddr)
 | 
						||
    {
 | 
						||
        // get load address
 | 
						||
        Read_byte(file,&background);
 | 
						||
        Read_byte(file,&background);
 | 
						||
        sprintf(filename,"load at $%02x00",background);
 | 
						||
    }
 | 
						||
    else
 | 
						||
    {
 | 
						||
        sprintf(filename,"no addr");
 | 
						||
    }
 | 
						||
       
 | 
						||
        if(file_size>9002)
 | 
						||
        {
 | 
						||
            context->Ratio = PIXEL_WIDE;
 | 
						||
        }
 | 
						||
        sprintf(context->Comment,"C64 %s, %s",
 | 
						||
            c64_format_names[loadFormat],filename);
 | 
						||
        Pre_load(context, width, height, file_size, FORMAT_C64, context->Ratio,0); // Do this as soon as you can
 | 
						||
                     
 | 
						||
        context->Width = width ;                
 | 
						||
        context->Height = height;
 | 
						||
                
 | 
						||
        Read_bytes(file,bitmap,8000);
 | 
						||
 | 
						||
        if (file_size>8002) 
 | 
						||
            Read_bytes(file,colors,1000);
 | 
						||
        else
 | 
						||
        {
 | 
						||
            for(i=0;i<1000;i++)
 | 
						||
            {
 | 
						||
                colors[i]=1;
 | 
						||
            }
 | 
						||
        }
 | 
						||
 | 
						||
        if(width==160)
 | 
						||
        {
 | 
						||
            Read_bytes(file,nybble,1000);
 | 
						||
            Read_byte(file,&background);
 | 
						||
            Load_C64_multi(context,bitmap,colors,nybble,background);
 | 
						||
        }
 | 
						||
        else
 | 
						||
        {
 | 
						||
            Load_C64_hires(context,bitmap,colors);
 | 
						||
        }
 | 
						||
        
 | 
						||
        File_error = 0;
 | 
						||
        fclose(file);
 | 
						||
    }
 | 
						||
    else
 | 
						||
        File_error = 1;
 | 
						||
}
 | 
						||
 | 
						||
int Save_C64_window(byte *saveWhat, byte *loadAddr)
 | 
						||
{
 | 
						||
    int button;
 | 
						||
    unsigned int i;
 | 
						||
    T_Dropdown_button *what, *addr;
 | 
						||
    char * what_label[] = {
 | 
						||
        "All",
 | 
						||
        "Bitmap",
 | 
						||
        "Screen",
 | 
						||
        "Color"
 | 
						||
    };
 | 
						||
    char * address_label[] = {
 | 
						||
        "None",
 | 
						||
        "$2000",
 | 
						||
        "$4000",
 | 
						||
        "$6000",
 | 
						||
        "$8000",
 | 
						||
        "$A000",
 | 
						||
        "$C000",
 | 
						||
        "$E000"
 | 
						||
    };
 | 
						||
       
 | 
						||
    Open_window(200,120,"c64 settings");
 | 
						||
    Window_set_normal_button(110,100,80,15,"Save",1,1,SDLK_RETURN);
 | 
						||
    Window_set_normal_button(10,100,80,15,"Cancel",1,1,SDLK_ESCAPE);
 | 
						||
    
 | 
						||
    Print_in_window(13,18,"Data:",MC_Dark,MC_Light);
 | 
						||
    what=Window_set_dropdown_button(10,28,90,15,70,what_label[*saveWhat],1, 0, 1, LEFT_SIDE);
 | 
						||
    Window_dropdown_clear_items(what);
 | 
						||
    for (i=0; i<sizeof(what_label)/sizeof(char *); i++)
 | 
						||
        Window_dropdown_add_item(what,i,what_label[i]);
 | 
						||
    
 | 
						||
    Print_in_window(113,18,"Address:",MC_Dark,MC_Light);
 | 
						||
    addr=Window_set_dropdown_button(110,28,70,15,70,address_label[*loadAddr/32],1, 0, 1, LEFT_SIDE);
 | 
						||
    Window_dropdown_clear_items(addr);
 | 
						||
    for (i=0; i<sizeof(address_label)/sizeof(char *); i++)
 | 
						||
        Window_dropdown_add_item(addr,i,address_label[i]); 
 | 
						||
    
 | 
						||
    Update_window_area(0,0,Window_width,Window_height); 
 | 
						||
    Display_cursor();
 | 
						||
 | 
						||
    do
 | 
						||
    {
 | 
						||
        button = Window_clicked_button();
 | 
						||
        switch(button)
 | 
						||
        {
 | 
						||
            case 3: // Save what
 | 
						||
                *saveWhat=Window_attribute2;
 | 
						||
                //printf("what=%d\n",Window_attribute2);
 | 
						||
                break;
 | 
						||
            
 | 
						||
            case 4: // Load addr
 | 
						||
                *loadAddr=Window_attribute2*32;
 | 
						||
                //printf("addr=$%02x00 (%d)\n",loadAddr,Window_attribute2);
 | 
						||
                break;
 | 
						||
            
 | 
						||
            case 0: break;
 | 
						||
        }
 | 
						||
    }while(button!=1 && button!=2);
 | 
						||
    
 | 
						||
    Close_window();
 | 
						||
    Display_cursor();
 | 
						||
    return button==1;
 | 
						||
}
 | 
						||
 | 
						||
int Save_C64_hires(T_IO_Context *context, char *filename, byte saveWhat, byte loadAddr)
 | 
						||
{
 | 
						||
    int cx,cy,x,y,c1,c2=0,i,pixel,bits,pos=0;
 | 
						||
    word numcolors;
 | 
						||
    dword cusage[256];
 | 
						||
    byte colors[1000],bitmap[8000];
 | 
						||
    FILE *file;
 | 
						||
    
 | 
						||
    for(x=0;x<1000;x++)colors[x]=1; // init colormem to black/white
 | 
						||
  
 | 
						||
    for(cy=0; cy<25; cy++) // Character line, 25 lines
 | 
						||
    {
 | 
						||
        for(cx=0; cx<40; cx++) // Character column, 40 columns
 | 
						||
        {
 | 
						||
            for(i=0;i<256;i++)
 | 
						||
                cusage[i]=0;
 | 
						||
            
 | 
						||
            numcolors=Count_used_colors_area(cusage,cx*8,cy*8,8,8);
 | 
						||
            if (numcolors>2)
 | 
						||
            {
 | 
						||
                Warning_message("More than 2 colors in 8x8 pixels");
 | 
						||
                // TODO here we should hilite the offending block
 | 
						||
                printf("\nerror at %dx%d (%d colors)\n",cx*8,cy*8,numcolors);
 | 
						||
                return 1;
 | 
						||
            }
 | 
						||
            for(i=0;i<16;i++)
 | 
						||
            {
 | 
						||
                if(cusage[i])
 | 
						||
                {
 | 
						||
                    c2=i;
 | 
						||
                    break;
 | 
						||
                }
 | 
						||
            }
 | 
						||
            c1=c2;
 | 
						||
            for(i=c2+1;i<16;i++)
 | 
						||
            {
 | 
						||
                if(cusage[i])
 | 
						||
                {
 | 
						||
                  c1=i;
 | 
						||
                }
 | 
						||
            }            
 | 
						||
            colors[cx+cy*40]=(c2<<4)|c1;
 | 
						||
      
 | 
						||
            for(y=0; y<8; y++)
 | 
						||
            {
 | 
						||
                bits=0;
 | 
						||
                for(x=0; x<8; x++)
 | 
						||
                {
 | 
						||
                    pixel=Get_pixel(context, x+cx*8,y+cy*8);
 | 
						||
                    if(pixel>15) 
 | 
						||
                    { 
 | 
						||
                        Warning_message("Color above 15 used"); 
 | 
						||
                        // TODO hilite offending block here too?
 | 
						||
                        // or make it smarter with color allocation?
 | 
						||
                        // However, the palette is fixed to the 16 first colors
 | 
						||
                        return 1;
 | 
						||
                    }
 | 
						||
                    bits=bits<<1;
 | 
						||
                    if (pixel==c1) bits|=1;
 | 
						||
                }
 | 
						||
                bitmap[pos++]=bits;
 | 
						||
                //Write_byte(file,bits&255);
 | 
						||
            }
 | 
						||
        }
 | 
						||
    }
 | 
						||
  
 | 
						||
    file = fopen(filename,"wb");
 | 
						||
  
 | 
						||
    if(!file)
 | 
						||
    {
 | 
						||
        Warning_message("File open failed");
 | 
						||
        File_error = 1;
 | 
						||
        return 1;
 | 
						||
    }
 | 
						||
    
 | 
						||
    if (loadAddr)
 | 
						||
    {
 | 
						||
        Write_byte(file,0);
 | 
						||
        Write_byte(file,loadAddr);
 | 
						||
    }
 | 
						||
    if (saveWhat==0 || saveWhat==1)
 | 
						||
        Write_bytes(file,bitmap,8000);
 | 
						||
    if (saveWhat==0 || saveWhat==2)
 | 
						||
        Write_bytes(file,colors,1000);
 | 
						||
    
 | 
						||
    fclose(file);
 | 
						||
    return 0;
 | 
						||
}
 | 
						||
 | 
						||
int Save_C64_multi(T_IO_Context *context, char *filename, byte saveWhat, byte loadAddr)
 | 
						||
{
 | 
						||
    /* 
 | 
						||
    BITS     COLOR INFORMATION COMES FROM
 | 
						||
    00     Background color #0 (screen color)
 | 
						||
    01     Upper 4 bits of screen memory
 | 
						||
    10     Lower 4 bits of screen memory
 | 
						||
    11     Color nybble (nybble = 1/2 byte = 4 bits)
 | 
						||
    */
 | 
						||
 | 
						||
    int cx,cy,x,y,c[4]={0,0,0,0},color,lut[16],bits,pixel,pos=0;
 | 
						||
    byte bitmap[8000],screen[1000],nybble[1000];
 | 
						||
    word numcolors,count;
 | 
						||
    dword cusage[256];
 | 
						||
    byte i,background=0;
 | 
						||
    FILE *file;
 | 
						||
    
 | 
						||
    numcolors=Count_used_colors(cusage);
 | 
						||
  
 | 
						||
    count=0;
 | 
						||
    for(x=0;x<16;x++)
 | 
						||
    {
 | 
						||
        //printf("color %d, pixels %d\n",x,cusage[x]);
 | 
						||
        if(cusage[x]>count)
 | 
						||
        {
 | 
						||
            count=cusage[x];
 | 
						||
            background=x;
 | 
						||
        }
 | 
						||
    }
 | 
						||
  
 | 
						||
    for(cy=0; cy<25; cy++)
 | 
						||
    {
 | 
						||
        //printf("\ny:%2d ",cy);
 | 
						||
        for(cx=0; cx<40; cx++)
 | 
						||
        {
 | 
						||
            numcolors=Count_used_colors_area(cusage,cx*4,cy*8,4,8);
 | 
						||
            if(numcolors>4)
 | 
						||
            {
 | 
						||
                Warning_message("More than 4 colors in 4x8");
 | 
						||
                // TODO hilite offending block
 | 
						||
                return 1;
 | 
						||
            }
 | 
						||
            color=1;
 | 
						||
            c[0]=background;
 | 
						||
            for(i=0; i<16; i++)
 | 
						||
            {
 | 
						||
                lut[i]=0;
 | 
						||
                if(cusage[i])
 | 
						||
                {
 | 
						||
                    if(i!=background)
 | 
						||
                    {
 | 
						||
                        lut[i]=color;
 | 
						||
                        c[color]=i;
 | 
						||
                        color++;
 | 
						||
                    }
 | 
						||
                    else
 | 
						||
                    {
 | 
						||
                        lut[i]=0;
 | 
						||
                    }
 | 
						||
                }
 | 
						||
            }
 | 
						||
            // add to screen and nybble
 | 
						||
            screen[cx+cy*40]=c[1]<<4|c[2];
 | 
						||
            nybble[cx+cy*40]=c[3];
 | 
						||
            //printf("%x%x%x ",c[1],c[2],c[3]);
 | 
						||
            for(y=0;y<8;y++)
 | 
						||
            {
 | 
						||
                bits=0;
 | 
						||
                for(x=0;x<4;x++)
 | 
						||
                {                    
 | 
						||
                    pixel=Get_pixel(context, cx*4+x,cy*8+y);
 | 
						||
                    if(pixel>15) 
 | 
						||
                    { 
 | 
						||
                        Warning_message("Color above 15 used"); 
 | 
						||
                        // TODO hilite as in hires, you should stay to 
 | 
						||
                        // the fixed 16 color palette
 | 
						||
                        return 1;
 | 
						||
                    }
 | 
						||
                    bits=bits<<2;
 | 
						||
                    bits|=lut[pixel];
 | 
						||
        
 | 
						||
                }
 | 
						||
                //Write_byte(file,bits&255);
 | 
						||
                bitmap[pos++]=bits;
 | 
						||
            }
 | 
						||
        }
 | 
						||
    }
 | 
						||
  
 | 
						||
    file = fopen(filename,"wb");
 | 
						||
    
 | 
						||
    if(!file)
 | 
						||
    {
 | 
						||
        Warning_message("File open failed");
 | 
						||
        File_error = 1;
 | 
						||
        return 1;
 | 
						||
    }
 | 
						||
 | 
						||
    if (loadAddr)
 | 
						||
    {
 | 
						||
        Write_byte(file,0);
 | 
						||
        Write_byte(file,loadAddr);
 | 
						||
    }
 | 
						||
 | 
						||
    if (saveWhat==0 || saveWhat==1)
 | 
						||
        Write_bytes(file,bitmap,8000);
 | 
						||
        
 | 
						||
    if (saveWhat==0 || saveWhat==2)
 | 
						||
        Write_bytes(file,screen,1000);
 | 
						||
        
 | 
						||
    if (saveWhat==0 || saveWhat==3)
 | 
						||
        Write_bytes(file,nybble,1000);
 | 
						||
        
 | 
						||
    if (saveWhat==0)
 | 
						||
        Write_byte(file,background);
 | 
						||
    
 | 
						||
    fclose(file);
 | 
						||
    //printf("\nbg:%d\n",background);
 | 
						||
    return 0;
 | 
						||
}
 | 
						||
 | 
						||
void Save_C64(T_IO_Context * context)
 | 
						||
{
 | 
						||
    char filename[MAX_PATH_CHARACTERS];
 | 
						||
    static byte saveWhat=0, loadAddr=0;
 | 
						||
    dword numcolors,cusage[256];
 | 
						||
    numcolors=Count_used_colors(cusage);
 | 
						||
  
 | 
						||
    Get_full_filename(filename, context->File_name, context->File_directory);
 | 
						||
  
 | 
						||
    if (numcolors>16)
 | 
						||
    {
 | 
						||
        Warning_message("Error: Max 16 colors");
 | 
						||
        File_error = 1;
 | 
						||
        return;
 | 
						||
    }
 | 
						||
    if (((context->Width!=320) && (context->Width!=160)) || context->Height!=200)
 | 
						||
    {
 | 
						||
        Warning_message("must be 320x200 or 160x200");
 | 
						||
        File_error = 1;
 | 
						||
        return;
 | 
						||
    } 
 | 
						||
    
 | 
						||
    if(!Save_C64_window(&saveWhat,&loadAddr))
 | 
						||
    {
 | 
						||
        File_error = 1;
 | 
						||
        return;
 | 
						||
    }
 | 
						||
    //printf("saveWhat=%d, loadAddr=%d\n",saveWhat,loadAddr);
 | 
						||
    
 | 
						||
    if (context->Width==320)
 | 
						||
        File_error = Save_C64_hires(context,filename,saveWhat,loadAddr);
 | 
						||
    else
 | 
						||
        File_error = Save_C64_multi(context,filename,saveWhat,loadAddr);
 | 
						||
}
 | 
						||
 | 
						||
 | 
						||
// SCR (Amstrad CPC)
 | 
						||
 | 
						||
void Test_SCR(__attribute__((unused)) T_IO_Context * context)
 | 
						||
{
 | 
						||
	// Mmh... not sure what we could test. Any idea ?
 | 
						||
	// The palette file can be tested, if it exists and have the right size it's
 | 
						||
	// ok. But if it's not there the pixel data may still be valid. And we can't
 | 
						||
	// use the filesize as this depends on the screen format.
 | 
						||
	
 | 
						||
	// An AMSDOS header would be a good indication but in some cases it may not
 | 
						||
	// be there
 | 
						||
}
 | 
						||
 | 
						||
void Load_SCR(__attribute__((unused)) T_IO_Context * context)
 | 
						||
{
 | 
						||
	// The Amstrad CPC screen memory is mapped in a weird mode, somewhere
 | 
						||
	// between bitmap and textmode. Basically the only way to decode this is to
 | 
						||
	// emulate the video chip and read the bytes as needed...
 | 
						||
	// Moreover, the hardware allows the screen to have any size from 8x1 to
 | 
						||
	// 800x273 pixels, and there is no indication of that in the file besides
 | 
						||
	// its size. It can also use any of the 3 screen modes. Fortunately this
 | 
						||
	// last bit of information is stored in the palette file.
 | 
						||
	// Oh, and BTW, the picture can be offset, and it's even usual to do it,
 | 
						||
	// because letting 128 pixels unused at the beginning of the file make it a
 | 
						||
	// lot easier to handle screens using more than 16K of VRam.
 | 
						||
	// The pixel encoding change with the video mode so we have to know that
 | 
						||
	// before attempting to load anything...
 | 
						||
	// As if this wasn't enough, Advanced OCP Art Studio, the reference tool on
 | 
						||
	// Amstrad, can use RLE packing when saving files, meaning we also have to
 | 
						||
	// handle that.
 | 
						||
	
 | 
						||
	// All this mess enforces us to load (and unpack if needed) the file to a
 | 
						||
	// temporary 32k buffer before actually decoding it.
 | 
						||
	
 | 
						||
	// 1) Seek for a palette
 | 
						||
	// 2) If palette found get screenmode from there, else ask user
 | 
						||
	// 3) ask user for screen size (or register values)
 | 
						||
	// 4) Load color data from palette (if found)
 | 
						||
	// 5) Close palette
 | 
						||
	// 6) Open the file
 | 
						||
	// 7) Run around the screen to untangle the pixeldata
 | 
						||
	// 8) Close the file
 | 
						||
}
 | 
						||
 | 
						||
void Save_SCR(T_IO_Context * context)
 | 
						||
{
 | 
						||
	// TODO : Add possibility to set R9, R12, R13 values
 | 
						||
	// TODO : Add OCP packing support
 | 
						||
	// TODO : Add possibility to include AMSDOS header, with proper loading
 | 
						||
	// address guessed from r12/r13 values.
 | 
						||
	
 | 
						||
	unsigned char* output;
 | 
						||
	unsigned long outsize;
 | 
						||
	unsigned char r1;
 | 
						||
	int cpc_mode;
 | 
						||
	FILE* file;
 | 
						||
	char filename[MAX_PATH_CHARACTERS];
 | 
						||
 | 
						||
	Get_full_filename(filename, context->File_name, context->File_directory);
 | 
						||
 | 
						||
 | 
						||
	switch(Pixel_ratio)
 | 
						||
	{
 | 
						||
			case PIXEL_WIDE:
 | 
						||
			case PIXEL_WIDE2:
 | 
						||
				cpc_mode = 0;
 | 
						||
				break;
 | 
						||
			case PIXEL_TALL:
 | 
						||
			case PIXEL_TALL2:
 | 
						||
				cpc_mode = 2;
 | 
						||
				break;
 | 
						||
			default:
 | 
						||
				cpc_mode = 1;
 | 
						||
				break;
 | 
						||
	}
 | 
						||
 | 
						||
	output = raw2crtc(context->Width,context->Height,cpc_mode,7,&outsize,&r1,0,0);
 | 
						||
 | 
						||
	file = fopen(filename,"wb");
 | 
						||
	Write_bytes(file, output, outsize);
 | 
						||
	fclose(file);
 | 
						||
 | 
						||
	free (output);
 | 
						||
 | 
						||
	File_error = 0;
 | 
						||
}
 |