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Implemented back the Mask mode. Fixed a historical bug of memory violation if you used Mask with images of different sizes (would crash all platforms except DOS)

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git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1237 416bcca6-2ee7-4201-b75f-2eb2f807beb1
This commit is contained in:
Yves Rizoud
2009-12-07 20:39:32 +00:00
parent 141a523c46
commit cf54bb5f29
9 changed files with 126 additions and 90 deletions
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4
graph.c
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@@ -2882,7 +2882,7 @@ byte Read_pixel_from_current_screen (word x,word y)
if (color != Main_backups->Pages->Transparent_color) // transparent color
return color;
depth = *(Visible_image_depth_buffer.Image+x+y*Main_image_width);
depth = *(Main_visible_image_depth_buffer.Image+x+y*Main_image_width);
return *(Main_backups->Pages->Image[depth] + x+y*Main_image_width);
#else
return *((y)*Main_image_width+(x)+Main_backups->Pages->Image[Main_current_layer]);
@@ -2892,7 +2892,7 @@ byte Read_pixel_from_current_screen (word x,word y)
void Pixel_in_current_screen (word x,word y,byte color,int with_preview)
{
#ifndef NOLAYERS
byte depth = *(Visible_image_depth_buffer.Image+x+y*Main_image_width);
byte depth = *(Main_visible_image_depth_buffer.Image+x+y*Main_image_width);
*(Main_backups->Pages->Image[Main_current_layer] + x+y*Main_image_width)=color;
if ( depth <= Main_current_layer)
{