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* Avoid crash when enabling mode 5 without enough layers (they are created)

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* Display error code to terminal when loading an image fails. Mainly for debugging purposes.
 * Use different error codes for different errors in ILBM loader.


git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1818 416bcca6-2ee7-4201-b75f-2eb2f807beb1
This commit is contained in:
Adrien Destugues 2011-07-12 19:31:48 +00:00
parent e875597964
commit 6672966661
3 changed files with 30 additions and 15 deletions
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17
src/buttons_effects.c
View File

@ -29,6 +29,7 @@
#include <stdlib.h>
#include <string.h>
#include "brush.h"
#include "buttons.h"
#include "engine.h"
#include "global.h"
@ -36,11 +37,11 @@
#include "help.h"
#include "input.h"
#include "misc.h"
#include "pages.h"
#include "readline.h"
#include "sdlscreen.h"
#include "struct.h"
#include "windows.h"
#include "brush.h"
//---------- Menu dans lequel on tagge des couleurs (genre Stencil) ----------
void Menu_tag_colors(char * window_title, byte * table, byte * mode, byte can_cancel, const char *help_section, word close_shortcut)
@ -166,6 +167,20 @@ void Menu_tag_colors(char * window_title, byte * table, byte * mode, byte can_ca
void Button_Constraint_mode(void)
{
Constraint_mode=!Constraint_mode;
if (Constraint_mode)
{
// TODO backup
// CPC Mode 5 - ensure there are at least 5 layers
while(Main_backups->Pages->Nb_layers < 5)
{
Add_layer(Main_backups, 0);
// Add layers below, so the picture is kept on the top one
// (the valuable pixel data)
}
// TODO set the palette to a CPC one ?
}
}

26
src/fileformats.c
View File

@ -636,14 +636,14 @@ void Load_LBM(T_IO_Context * context)
// On lit l'octet de padding du CMAP si la taille est impaire
if (nb_colors&1)
if (Read_byte(LBM_file,&temp_byte))
File_error=2;
File_error=20;
// Keep reading sections until we find the body
while (1)
{
if (! Read_bytes(LBM_file,section,4))
{
File_error=2;
File_error=46;
break;
}
// Found body : stop searching
@ -683,7 +683,7 @@ void Load_LBM(T_IO_Context * context)
}
else
{
File_error=2;
File_error=47;
break;
}
}
@ -692,7 +692,7 @@ void Load_LBM(T_IO_Context * context)
// ignore any number of unknown sections
if (!LBM_Skip_section())
{
File_error=2;
File_error=48;
break;
}
}
@ -733,7 +733,7 @@ void Load_LBM(T_IO_Context * context)
if (Read_bytes(LBM_file,LBM_buffer,line_size))
Draw_ILBM_line(context, y_pos,real_line_size);
else
File_error=2;
File_error=21;
}
free(LBM_buffer);
LBM_buffer = NULL;
@ -750,7 +750,7 @@ void Load_LBM(T_IO_Context * context)
{
if(Read_byte(LBM_file, &temp_byte)!=1)
{
File_error=2;
File_error=22;
break;
}
// Si temp_byte > 127 alors il faut répéter 256-'temp_byte' fois la couleur de l'octet suivant
@ -759,7 +759,7 @@ void Load_LBM(T_IO_Context * context)
{
if(Read_byte(LBM_file, &color)!=1)
{
File_error=2;
File_error=23;
break;
}
b256=(short)(256-temp_byte);
@ -767,12 +767,12 @@ void Load_LBM(T_IO_Context * context)
if (x_pos<line_size)
LBM_buffer[x_pos++]=color;
else
File_error=2;
File_error=24;
}
else
for (counter=0; counter<=(short)(temp_byte); counter++)
if (x_pos>=line_size || Read_byte(LBM_file, &(LBM_buffer[x_pos++]))!=1)
File_error=2;
File_error=25;
}
if (!File_error)
Draw_ILBM_line(context, y_pos,real_line_size);
@ -796,7 +796,7 @@ void Load_LBM(T_IO_Context * context)
for (x_pos=0; x_pos<context->Width; x_pos++)
Set_pixel(context, x_pos,y_pos,LBM_buffer[x_pos]);
else
File_error=2;
File_error=26;
}
free(LBM_buffer);
LBM_buffer = NULL;
@ -810,14 +810,14 @@ void Load_LBM(T_IO_Context * context)
{
if(Read_byte(LBM_file, &temp_byte)!=1)
{
File_error=2;
File_error=27;
break;
}
if (temp_byte>127)
{
if(Read_byte(LBM_file, &color)!=1)
{
File_error=2;
File_error=28;
break;
}
b256=256-temp_byte;
@ -830,7 +830,7 @@ void Load_LBM(T_IO_Context * context)
byte byte_read=0;
if(Read_byte(LBM_file, &byte_read)!=1)
{
File_error=2;
File_error=29;
break;
}
Set_pixel(context, x_pos++,y_pos,byte_read);

2
src/loadsave.c
View File

@ -624,7 +624,7 @@ void Load_image(T_IO_Context *context)
if (File_error>0)
{
fprintf(stderr,"Unable to load file %s!\n",context->File_name);
fprintf(stderr,"Unable to load file %s (error %d)!\n",context->File_name, File_error);
if (context->Type!=CONTEXT_SURFACE)
Error(0);
}