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Added safeties for Mode5: Mode will only switch on if the image has the required layers and a compatible width.

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git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1941 416bcca6-2ee7-4201-b75f-2eb2f807beb1
This commit is contained in:
Yves Rizoud 2012-03-30 22:27:09 +00:00
parent 95482d3f17
commit 4fe4ccd7b0
1 changed files with 6 additions and 9 deletions
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15
src/buttons_effects.c
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@ -169,16 +169,13 @@ void Button_Constraint_mode(void)
{
if (Main_backups->Pages->Image_mode == IMAGE_MODE_LAYERED)
{
Main_backups->Pages->Image_mode = IMAGE_MODE_MODE5;
if (Main_backups->Pages->Nb_layers!=5 || (Main_image_width%48))
{
Verbose_message("Error!", "This emulation of Amstrad CPC's Mode5 can only be used on a 5-layer image whose width is a multiple of 48.");
return;
}
// 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)
}
Main_backups->Pages->Image_mode = IMAGE_MODE_MODE5;
// TODO set the palette to a CPC one ?
}
else if (Main_backups->Pages->Image_mode == IMAGE_MODE_MODE5)