Colormap conversion tool; from 3DO 32x15bitx8 to 256x24bit

git-svn-id: svn://svn.code.sf.net/p/sc2/code/trunk@1511 8092fc87-c524-0410-9efc-e669fe64eaf9
2005-02-03 07:57:47 +00:00
parent 5eadd60631
commit d47a32435d
6 changed files with 670 additions and 0 deletions
@@ -0,0 +1,62 @@
+#include <stdint.h>
+
+#if defined(_MSC_VER)
+#	define PACKED
+#	pragma pack(push, 1)
+#elif defined(__GNUC__)
+#	define PACKED __attribute__ ((packed))
+#endif
+
+/* string res structures from unstr.h */
+
+#define CTTAB_MAGIC 0xffffffff
+
+typedef struct
+{
+	uint32_t PACKED magic;
+	uint16_t PACKED unknown1;      // always 0
+	uint16_t PACKED num_entries;
+	uint32_t PACKED offset;        // should always be 0
+	uint32_t PACKED entry_size[1]; // 1 or more entry sizes
+} cttab_header_t;
+
+#define CLUT_COLORS  0x20
+#define CLUT_STEPS   8
+
+typedef uint16_t clut_color_t;
+typedef clut_color_t clut_t[CLUT_COLORS];
+
+typedef struct
+{
+	uint8_t PACKED start_clut;
+	uint8_t PACKED end_clut;     // inclusive
+	clut_t  PACKED cluts[1];     // 0 or more cluts
+} clut_tab_t;
+
+#define PAL_COLORS    0x100
+#define PAL_CHANNELS  3
+
+typedef uint8_t pal_channel_t;
+
+typedef union
+{
+	struct {
+		pal_channel_t r, g, b;
+	} chan;
+	pal_channel_t channels[PAL_CHANNELS];
+} pal_color_t;
+
+typedef pal_color_t pal_t[PAL_COLORS];
+
+typedef struct
+{
+	uint8_t PACKED start_clut;
+	uint8_t PACKED end_clut;    // inclusive
+	pal_t   PACKED pals[1];     // 0 or more pals
+} pal_tab_t;
+
+
+#if defined(_MSC_VER)
+#	pragma pack(pop)
+#endif
+#undef PACKED