X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=retrocrawl;a=blobdiff_plain;f=src%2Famiga%2Fgfx.h;fp=src%2Famiga%2Fgfx.h;h=f3352fdea048340e32e7c8f9bece9287b323cb3b;hp=0000000000000000000000000000000000000000;hb=cab072d239d772d1c3445612d2599da36b087b25;hpb=03ec5d69f5f53b61e8b6aefbcd23b0b258c6b60a

diff --git a/src/amiga/gfx.h b/src/amiga/gfx.h
new file mode 100644
index 0000000..f3352fd
--- /dev/null
+++ b/src/amiga/gfx.h
@@ -0,0 +1,25 @@
+#ifndef GFX_H_
+#define GFX_H_
+
+#define SCR_W	320
+#define SCR_H	256
+#define SCANSZ	(SCR_W / 8)
+#define BPLSZ	(SCANSZ * SCR_H)
+#define NBPL	5
+
+#define wait_vpos(x) \
+	asm volatile ( \
+		"0: move.l 0xdff004, %%d0\n\t" \
+		"and.l #0x1ff00, %%d0\n\t" \
+		"cmp.l %0, %%d0\n\t" \
+		"bne 0b\n\t" \
+		:: "i"((x) << 8) : "%d0")
+
+#define wait_vblank() wait_vpos(300)
+
+unsigned char framebuf[BPLSZ * NBPL];
+unsigned char *bplptr[NBPL];
+
+int init_gfx(void);
+
+#endif	/* GFX_H_ */