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Some work on brush remapping

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git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1700 416bcca6-2ee7-4201-b75f-2eb2f807beb1
This commit is contained in:
Yves Rizoud
2011-01-29 21:20:54 +00:00
parent 40a7bcf40e
commit e01b310317
11 changed files with 110 additions and 32 deletions
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94
src/brush.c
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@@ -494,10 +494,14 @@ byte Realloc_brush(word new_brush_width, word new_brush_height, byte *new_brush,
{
byte *new_smear_brush;
byte *new_brush_remapped;
word new_smear_brush_width;
word new_smear_brush_height;
byte new_brush_is_provided;
if (new_brush==NULL)
new_brush_is_provided = (new_brush!=NULL);
if (!new_brush_is_provided)
{
new_brush=(byte *)malloc(((long)new_brush_height)*new_brush_width);
if (new_brush == NULL)
@@ -512,8 +516,8 @@ byte Realloc_brush(word new_brush_width, word new_brush_height, byte *new_brush,
new_smear_brush_width=(new_brush_width>MAX_PAINTBRUSH_SIZE)?new_brush_width:MAX_PAINTBRUSH_SIZE;
new_smear_brush_height=(new_brush_height>MAX_PAINTBRUSH_SIZE)?new_brush_height:MAX_PAINTBRUSH_SIZE;
new_smear_brush=NULL;
if ( (((long)Brush_height)*Brush_width) !=
(((long)new_brush_height)*new_brush_width) )
if ( (((long)Smear_brush_height)*Smear_brush_width) !=
(((long)new_smear_brush_width)*new_smear_brush_height) )
{
new_smear_brush=(byte *)malloc(((long)new_smear_brush_height)*new_smear_brush_width);
if (new_smear_brush == NULL)
@@ -521,13 +525,33 @@ byte Realloc_brush(word new_brush_width, word new_brush_height, byte *new_brush,
Error(0);
if (old_brush)
*old_brush=NULL;
if (!new_brush_is_provided)
free(new_brush);
return 2;
}
}
new_brush_remapped=NULL;
if ( (((long)Brush_height)*Brush_width) !=
(((long)new_brush_height)*new_brush_width) )
{
new_brush_remapped=(byte *)malloc(((long)new_brush_height)*new_brush_width);
if (new_brush_remapped == NULL)
{
Error(0);
free(new_smear_brush);
if (old_brush)
*old_brush=NULL;
if (!new_brush_is_provided)
free(new_brush);
return 3;
}
}
// All allocations successful: can replace globals
Brush_width=new_brush_width;
Brush_height=new_brush_height;
memcpy(Brush_original_palette, Main_palette,sizeof(T_Palette));
Brush_original_back_color=Back_color;
if (new_smear_brush)
{
@@ -539,12 +563,22 @@ byte Realloc_brush(word new_brush_width, word new_brush_height, byte *new_brush,
// Save or free the old brush pixels
if (old_brush)
*old_brush=Brush;
*old_brush=Brush_original_pixels;
else
free(old_brush);
Brush_original_pixels=new_brush;
// Assign new brush
Brush=new_brush;
if (new_brush_remapped)
{
free(Brush);
Brush=new_brush_remapped;
}
if (new_brush_is_provided)
{
// Copy from Brush_original_pixels to Brush, using the last defined colmap.
Remap_general_lowlevel(Brush_colormap,Brush_original_pixels,Brush,Brush_width,Brush_height,Brush_width);
//memcpy(Brush, Brush_original_pixels,(long)Brush_width*Brush_height);
}
return 0;
}
@@ -742,6 +776,8 @@ void Capture_brush(short start_x,short start_y,short end_x,short end_y,short cle
}
Update_part_of_screen(start_x,start_y,Brush_width,Brush_height);
}
// Copy without remap
memcpy(Brush_original_pixels, Brush, (long)Brush_height*Brush_width);
// On centre la prise sur la brosse
Brush_offset_X=(Brush_width>>1);
@@ -759,10 +795,13 @@ void Rotate_90_deg(void)
Error(0);
return;
}
Rotate_90_deg_lowlevel(old_brush,Brush,Brush_height,Brush_width);
Rotate_90_deg_lowlevel(old_brush,Brush_original_pixels,Brush_height,Brush_width);
free(old_brush);
// Copy without remap
memcpy(Brush, Brush_original_pixels, (long)Brush_height*Brush_width);
// On centre la prise sur la brosse
Brush_offset_X=(Brush_width>>1);
Brush_offset_Y=(Brush_height>>1);
@@ -773,34 +812,45 @@ void Remap_brush(void)
{
short x_pos; // Variable de balayage de la brosse
short y_pos; // Variable de balayage de la brosse
byte used[256]; // Tableau de booléens "La couleur est utilisée"
int color;
// On commence par initialiser le tableau de booléens à faux
for (color=0;color<=255;color++)
used[color]=0;
Brush_colormap[color]=0;
// On calcule la table d'utilisation des couleurs
for (y_pos=0;y_pos<Brush_height;y_pos++)
for (x_pos=0;x_pos<Brush_width;x_pos++)
used[Read_pixel_from_brush(x_pos,y_pos)]=1;
Brush_colormap[*(Brush_original_pixels + y_pos * Brush_width + x_pos)]=1;
// On n'est pas censé remapper la couleur de transparence, sinon la brosse
// changera de forme, donc on dit pour l'instant qu'elle n'est pas utilisée
// ainsi on ne s'embêtera pas à la recalculer
used[Back_color]=0;
Brush_colormap[Back_color]=0;
// On va maintenant se servir de la table "used" comme table de
// On va maintenant se servir de la table comme table de
// conversion: pour chaque indice, la table donne une couleur de
// remplacement.
// Note : Seules les couleurs utilisées on besoin d'êtres recalculées: les
// autres ne seront jamais consultées dans la nouvelle table de
// conversion puisque elles n'existent pas dans la brosse, donc elles
// ne seront pas utilisées par Remap_brush_LOWLEVEL.
// ne seront pas utilisées par Remap_general_lowlevel.
for (color=0;color<=255;color++)
if (used[color] != 0)
used[color]=Best_color_perceptual(Spare_palette[color].R,Spare_palette[color].G,Spare_palette[color].B);
if (Brush_colormap[color] != 0)
{
byte r,g,b;
r=Brush_original_palette[color].R;
g=Brush_original_palette[color].G;
b=Brush_original_palette[color].B;
// When remapping to same palette, ensure we keep same color index
if (r==Main_palette[color].R && g==Main_palette[color].G && b==Main_palette[color].B)
Brush_colormap[color]=color;
else
// Usual method: closest by r g b
Brush_colormap[color]=Best_color_perceptual(r,g,b);
}
// Il reste une couleur non calculée dans la table qu'il faut mettre à
// jour: c'est la couleur de fond. On l'avait inhibée pour éviter son
@@ -808,13 +858,13 @@ void Remap_brush(void)
// la brosse, on va mettre dans la table une relation d'équivalence entre
// les deux palettes: comme on ne veut pas que la couleur soit remplacée,
// on va dire qu'on veut qu'elle soit remplacée par la couleur en question.
used[Back_color]=Back_color;
Brush_colormap[Back_color]=Back_color;
// Maintenant qu'on a une super table de conversion qui n'a que le nom
// qui craint un peu, on peut faire l'échange dans la brosse de toutes les
// teintes.
Remap_general_lowlevel(used,Brush,Brush_width,Brush_height,Brush_width);
//Remap_brush_LOWLEVEL(used);
Remap_general_lowlevel(Brush_colormap,Brush_original_pixels,Brush,Brush_width,Brush_height,Brush_width);
}
@@ -898,6 +948,8 @@ void Outline_brush(void)
Pixel_in_brush(x_pos,y_pos,Fore_color);
}
}
// Copy without remap
memcpy(Brush_original_pixels, Brush, (long)Brush_height*Brush_width);
// On recentre la prise sur la brosse
Brush_offset_X=(Brush_width>>1);
@@ -997,7 +1049,9 @@ void Nibble_brush(void)
}
free(old_brush);
// Copy without remap
memcpy(Brush_original_pixels, Brush, (long)Brush_height*Brush_width);
// On recentre la prise sur la brosse
Brush_offset_X=(Brush_width>>1);
Brush_offset_Y=(Brush_height>>1);
@@ -1096,6 +1150,8 @@ void Capture_brush_with_lasso(int vertices, short * points,short clear)
if (clear)
Pixel_in_current_screen(x_pos,y_pos,Back_color,0);
}
// Copy without remap
memcpy(Brush_original_pixels, Brush, (long)Brush_height*Brush_width);
// On centre la prise sur la brosse
Brush_offset_X=(Brush_width>>1);