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oldies.c/.h: Document C64 FLI functions

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Thomas Bernard
2018-11-06 22:32:31 +01:00
parent 4b52718c1e
commit 4c8e56101f
2 changed files with 26 additions and 10 deletions
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20
src/oldies.c
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@@ -27,6 +27,7 @@
#include <stdlib.h>
#include <math.h>
#include "struct.h"
#include "oldies.h"
#include "global.h"
#include "errors.h"
#include "misc.h"
@@ -35,12 +36,12 @@
#include "windows.h"
#include "layers.h"
void Pixel_in_layer(word x,word y, byte layer, byte color)
static void Set_Pixel_in_layer(word x,word y, byte layer, byte color)
{
*((y)*Main.image_width+(x)+Main.backups->Pages->Image[layer].Pixels)=color;
}
byte C64_FLI(byte *bitmap, byte *screen_ram, byte *color_ram, byte *background)
int C64_FLI(byte *bitmap, byte *screen_ram, byte *color_ram, byte *background)
{
word used_colors[200][40];
word block_used_colors[25][40];
@@ -346,7 +347,7 @@ byte C64_FLI(byte *bitmap, byte *screen_ram, byte *color_ram, byte *background)
}
byte C64_FLI_enforcer(void)
int C64_FLI_enforcer(void)
{
byte background[200];
byte bitmap[8000];
@@ -357,12 +358,15 @@ byte C64_FLI_enforcer(void)
byte c[4];
// Checks
if (Main.image_width != 160)
if (Main.image_width != 160 || Main.image_height != 200)
{
GFX2_Log(GFX2_WARNING, "C64_FLI_enforcer() requires 160x200 image resolution\n");
return 1;
if (Main.image_height != 200)
return 1;
if (Main.backups->Pages->Nb_layers != 4)
}
if (Main.backups->Pages->Nb_layers != 4) {
GFX2_Log(GFX2_WARNING, "C64_FLI_enforcer() requires 4 layers\n");
return 2;
}
Backup_layers(3);
@@ -388,7 +392,7 @@ byte C64_FLI_enforcer(void)
{
int color=c[(pixel&3)];
pixel>>=2;
Pixel_in_layer(col*4+(3-x),row*8+y,3,color);
Set_Pixel_in_layer(col*4+(3-x),row*8+y,3,color);
}
}
}