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Load_CM5() Fix preview for CM5 format

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This commit is contained in:
Thomas Bernard 2018-03-05 10:39:06 +01:00
parent 68cad3884b
commit 9e89fb665b
1 changed files with 51 additions and 21 deletions
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46
src/miscfileformats.c
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@ -3223,6 +3223,11 @@ void Load_CM5(T_IO_Context* context)
int mod=0;
short line = 0;
int tx, ty;
// for preview :
byte ink0;
byte ink1[256];
byte ink2[256];
byte ink3[256*6];
if (!(file = Open_file_read(context)))
{
@ -3276,7 +3281,7 @@ void Load_CM5(T_IO_Context* context)
context->Palette[0x5F].R = 0x6E; context->Palette[0x5F].G = 0x7B; context->Palette[0x5F].B = 0xF6;
if (!Read_byte(file, &value))
if (!Read_byte(file, &ink0))
File_error = 2;
// This forces the creation of 5 layers total :
@ -3286,16 +3291,16 @@ void Load_CM5(T_IO_Context* context)
Set_loading_layer(context, 0);
if (context->Type == CONTEXT_MAIN_IMAGE)
{
Main.backups->Pages->Image_mode = IMAGE_MODE_MODE5;
// Fill layer with color we just read (Layer 1 - INK 0)
for(ty=0; ty<context->Height; ty++)
for(tx=0; tx<context->Width; tx++)
{
Set_pixel(context, tx, ty, value);
Set_pixel(context, tx, ty, ink0);
}
// Fill layer with color we just read (Layer 1 - INK 0)
while(Read_byte(file, &value) == 1)
while(Read_byte(file, &value))
{
switch(mod)
{
@ -3304,25 +3309,28 @@ void Load_CM5(T_IO_Context* context)
Set_loading_layer(context, 1);
for(tx=0; tx<context->Width; tx++)
Set_pixel(context, tx, line, value);
ink1[line] = value;
break;
case 1:
// This is color for layer 3 - INK 2
Set_loading_layer(context, 2);
for(tx=0; tx<context->Width; tx++)
Set_pixel(context, tx, line, value);
ink2[line] = value;
break;
default:
// This is color for a block in layer 4 - INK 3
Set_loading_layer(context, 3);
for(tx=(mod-2)*48; tx<(mod-1)*48; tx++)
Set_pixel(context, tx, line, value);
ink3[line*6+(mod-2)] = value;
break;
}
mod = mod + 1;
mod++;
if (mod > 7)
{
mod = 0;
line ++;
line++;
}
}
@ -3337,8 +3345,31 @@ void Load_CM5(T_IO_Context* context)
}
Set_loading_layer(context, 4);
if (context->Type == CONTEXT_PREVIEW)
for (ty = 0; ty < 256; ty++)
for (tx = 0; tx < 48*6; )
{
Read_byte(file, &value);
for (mod = 0; mod < 4; mod++, tx++, value <<= 1)
{
switch(3 ^ (((value&0x80) >> 7) | ((value&0x8)>>2))) // INK
{
case 0:
Set_pixel(context, tx, ty, ink0);
break;
case 1:
Set_pixel(context, tx, ty, ink1[ty]);
break;
case 2:
Set_pixel(context, tx, ty, ink2[ty]);
break;
default:
Set_pixel(context, tx, ty, ink3[ty*6+(tx/48)]);
}
}
}
else
for (ty = 0; ty < 256; ty++)
for (tx = 0; tx < 48*6; )
{
Read_byte(file, &value);
@ -3347,7 +3378,6 @@ void Load_CM5(T_IO_Context* context)
Set_pixel(context, tx++, ty, 3 ^ (((value&0x20) >> 5) | ((value&0x2)>>0)));
Set_pixel(context, tx++, ty, 3 ^ (((value&0x10) >> 4) | ((value&0x1)<<1)));
}
}
fclose(file);