X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=src%2Fsp65%2Fpalette.c;h=b407b365c906226abe2db3513e3a3cc155b260e5;hb=35e1184901ca38bdb2e56d154ed3b71f6096eacc;hp=3ada051baac29459172cdc2baa5db8d3dda335d8;hpb=364eb07a59e9622e1438860c7c8ffebdb896454c;p=cc65

diff --git a/src/sp65/palette.c b/src/sp65/palette.c
index 3ada051ba..b407b365c 100644
--- a/src/sp65/palette.c
+++ b/src/sp65/palette.c
@@ -33,6 +33,8 @@
 
 
 
+#include <string.h>
+
 /* common */
 #include "check.h"
 #include "xmalloc.h"
@@ -66,6 +68,45 @@ Palette* NewPalette (unsigned Entries)
 
 
 
+Palette* NewMonochromePalette (void)
+/* Create and return a palette with two entries (black and white) */
+{
+    /* Create a new palette */
+    Palette* P = NewPalette (2);
+
+    /* Set the two colors */
+    P->Entries[0] = RGBA (0x00, 0x00, 0x00, 0x00);
+    P->Entries[1] = RGBA (0xFF, 0xFF, 0xFF, 0x00);
+
+    /* Return the new palette */
+    return P;
+}
+
+
+
+Palette* DupPalette (const Palette* P)
+/* Create a copy of a palette */
+{
+    Palette* N;
+
+
+    /* Allow to pass a NULL palette */
+    if (P == 0) {
+        return 0;
+    }
+
+    /* Create a new palette */
+    N = NewPalette (P->Count);
+
+    /* Copy the palette data */
+    memcpy (N->Entries, P->Entries, P->Count * sizeof (P->Entries[0]));
+
+    /* Return the copy */
+    return N;
+}
+
+
+
 void FreePalette (Palette* P)
 /* Free a dynamically allocated palette */
 {
@@ -74,3 +115,29 @@ void FreePalette (Palette* P)
 
 
 
+void DumpPalette (FILE* F, const Palette* P)
+/* Dump the palette in readable form to the given file */
+{
+    unsigned I;
+
+    fputs ("Entry     R      G      B      A     Combined\n", F);
+    fputs ("----------------------------------------------\n", F);
+    for (I = 0; I < P->Count; ++I) {
+
+        /* Get the color entry */
+        const Color* C = P->Entries + I;
+
+        /* Output it */
+        fprintf (F,
+                 " %3u    %3u    %3u    %3u    %3u    #%08lX\n",
+                 I,
+                 C->R, C->G, C->B, C->A,
+                 (((unsigned long) C->A) << 24) |
+                 (((unsigned long) C->B) << 16) |
+                 (((unsigned long) C->G) <<  8) |
+                 (((unsigned long) C->R) <<  0));
+    }
+}
+
+
+