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backends/graphics/atari/atari-supervidel.h

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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef BACKENDS_GRAPHICS_ATARI_SUPERVIDEL_H
+#define BACKENDS_GRAPHICS_ATARI_SUPERVIDEL_H
+
+#include "common/scummsys.h"
+
+#ifdef USE_SUPERVIDEL
+
+// bits 26:0
+#define SV_BLITTER_SRC1           ((volatile long *)0x80010058)
+#define SV_BLITTER_SRC2           ((volatile long *)0x8001005C)
+#define SV_BLITTER_DST            ((volatile long *)0x80010060)
+// The amount of bytes that are to be copied in a horizontal line, minus 1
+#define SV_BLITTER_COUNT          ((volatile long *)0x80010064)
+// The amount of bytes that are to be added to the line start address after a line has been copied, in order to reach the next one
+#define SV_BLITTER_SRC1_OFFSET    ((volatile long *)0x80010068)
+#define SV_BLITTER_SRC2_OFFSET    ((volatile long *)0x8001006C)
+#define SV_BLITTER_DST_OFFSET     ((volatile long *)0x80010070)
+// bits 11:0 - The amount of horizontal lines to do
+#define SV_BLITTER_MASK_AND_LINES ((volatile long *)0x80010074)
+// bit    0 - busy / start
+// bits 4:1 - blit mode
+#define SV_BLITTER_CONTROL        ((volatile long *)0x80010078)
+// bits 9:0
+#define SV_VERSION                ((volatile long *)0x8001007C)
+// bit 0 - empty (read only)
+// bit 1 - full (read only)
+// bits 31:0 - data (write only)
+#define SV_BLITTER_FIFO           ((volatile long *)0x80010080)
+
+#ifdef USE_SV_BLITTER
+extern int g_superVidelFwVersion;
+extern const byte *g_blitMask;
+
+void SyncSuperBlitter();
+#endif	// USE_SV_BLITTER
+
+void LockSuperBlitter();
+void UnlockSuperBlitter();
+
+#else
+
+static inline void LockSuperBlitter() {}
+static inline void UnlockSuperBlitter() {}
+
+#endif	// USE_SUPERVIDEL
+
+extern bool g_hasSuperVidel;
+
+#endif // BACKENDS_GRAPHICS_ATARI_SUPERVIDEL_H