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ZX: also apply brightness constraint

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There may only be one brightness per cell: either two light, or two dark
colors.
This commit is contained in:
Adrien Destugues 2017-06-28 08:24:32 +02:00
parent f2b04e08d0
commit 1d2cfc2a8d
1 changed files with 124 additions and 86 deletions
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60
src/graph.c
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@ -3134,35 +3134,56 @@ void Pixel_in_screen_zx(word x,word y,byte color)
uint8_t c1, c2;
// The color we are going to replace
c1 = *(Main_backups->Pages->Image[Main_current_layer].Pixels + x+y*Main_image_width);
c1 = *(Main_backups->Pages->Image[Main_current_layer].Pixels
+ x + y * Main_image_width);
if (c1 == color)
return;
// find if there is another color in the cell
for (x2 = 0; x2 < 8; x2++)
for (y2 = 0; y2 < 8; y2++)
{
c2 = *(Main_backups->Pages->Image[Main_current_layer].Pixels + (x2+start)+(y2+starty)*Main_image_width);
c2 = *(Main_backups->Pages->Image[Main_current_layer].Pixels
+ (x2 + start) + (y2 + starty) * Main_image_width);
// Pixel is already of the color we are going to add, it is no problem
if (c2 == color)
continue;
// We have found another color, which is the one we will keep from the cell
if (c2 != c1)
goto done;
}
done:
if (c2 == c1 || c2 == color)
if ((c2 == c1 || c2 == color))
{
// There was only one color, so we can add a second one.
// There was only one color, so we can add a second one
// First make sure we have a single brightness
if ((c2 & 8) != (color & 8))
{
for (x2 = 0; x2 < 8; x2++)
for (y2 = 0; y2 < 8; y2++)
{
Pixel_in_screen_layered(x2+start,y2+starty,c2 ^ 8);
}
}
Pixel_in_screen_layered(x,y,color);
return;
}
// Now replace all pixels which are of color c1, with color c2
for (x2 = 0; x2 < 8; x2++)
for (y2 = 0; y2 < 8; y2++)
{
c2 = *(Main_backups->Pages->Image[Main_current_layer].Pixels + (x2+start)+(y2+starty)*Main_image_width);
c2 = *(Main_backups->Pages->Image[Main_current_layer].Pixels
+ (x2 + start) + (y2 + starty) * Main_image_width);
if (c2 == c1) {
Pixel_in_screen_layered(x2+start,y2+starty,color);
} else {
// Force the brightness bit
Pixel_in_screen_layered(x2+start,y2+starty,(c2 & ~8) | (color & 8));
}
}
}
@ -3175,7 +3196,8 @@ void Pixel_in_screen_zx_with_preview(word x,word y,byte color)
uint8_t c1, c2;
// The color we are going to replace
c1 = *(Main_backups->Pages->Image[Main_current_layer].Pixels + x+y*Main_image_width);
c1 = *(Main_backups->Pages->Image[Main_current_layer].Pixels
+ x + y * Main_image_width);
// Pixel is already of the wanted color: nothing to do
if (c1 == color)
@ -3185,7 +3207,8 @@ void Pixel_in_screen_zx_with_preview(word x,word y,byte color)
for (x2 = 0; x2 < 8; x2++)
for (y2 = 0; y2 < 8; y2++)
{
c2 = *(Main_backups->Pages->Image[Main_current_layer].Pixels + (x2+start)+(y2+starty)*Main_image_width);
c2 = *(Main_backups->Pages->Image[Main_current_layer].Pixels
+ (x2 + start) + (y2 + starty) * Main_image_width);
// Pixel is already of the color we are going to add, it is no problem
if (c2 == color)
continue;
@ -3195,20 +3218,35 @@ void Pixel_in_screen_zx_with_preview(word x,word y,byte color)
}
done:
if (c2 == c1 || c2 == color)
if ((c2 == c1 || c2 == color))
{
// There was only one color, so we can add a second one.
// There was only one color, so we can add a second one
// First make sure we have a single brightness
if ((c2 & 8) != (color & 8))
{
for (x2 = 0; x2 < 8; x2++)
for (y2 = 0; y2 < 8; y2++)
{
Pixel_in_screen_layered_with_preview(x2+start,y2+starty,c2 ^ 8);
}
}
Pixel_in_screen_layered_with_preview(x,y,color);
return;
}
// Replace all C1 with C2
// Replace all C1 with color
for (x2 = 0; x2 < 8; x2++)
for (y2 = 0; y2 < 8; y2++)
{
c2 = *(Main_backups->Pages->Image[Main_current_layer].Pixels + (x2+start)+(y2+starty)*Main_image_width);
c2 = *(Main_backups->Pages->Image[Main_current_layer].Pixels
+ (x2 + start) + (y2 + starty) * Main_image_width);
if (c2 == c1) {
Pixel_in_screen_layered_with_preview(x2+start,y2+starty,color);
} else {
// Force the brightness bit
Pixel_in_screen_layered_with_preview(x2+start,y2+starty,(c2 & ~8) | (color & 8));
}
}
}