1/* Copyright (c) 2013-2017 Jeffrey Pfau
 2 *
 3 * This Source Code Form is subject to the terms of the Mozilla Public
 4 * License, v. 2.0. If a copy of the MPL was not distributed with this
 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 6#ifndef DS_VIDEO_H
 7#define DS_VIDEO_H
 8
 9#include <mgba-util/common.h>
10
11CXX_GUARD_START
12
13#include <mgba/core/log.h>
14#include <mgba/core/timing.h>
15
16mLOG_DECLARE_CATEGORY(DS_VIDEO);
17
18enum {
19	DS_VIDEO_HORIZONTAL_PIXELS = 256,
20	DS_VIDEO_HBLANK_PIXELS = 99,
21	DS7_VIDEO_HBLANK_LENGTH = 1613,
22	DS9_VIDEO_HBLANK_LENGTH = 1606,
23	DS_VIDEO_HORIZONTAL_LENGTH = (DS_VIDEO_HORIZONTAL_PIXELS + DS_VIDEO_HBLANK_PIXELS) * 6,
24
25	DS_VIDEO_VERTICAL_PIXELS = 192,
26	DS_VIDEO_VBLANK_PIXELS = 71,
27	DS_VIDEO_VERTICAL_TOTAL_PIXELS = DS_VIDEO_VERTICAL_PIXELS + DS_VIDEO_VBLANK_PIXELS,
28
29	DS_VIDEO_TOTAL_LENGTH = DS_VIDEO_HORIZONTAL_LENGTH * DS_VIDEO_VERTICAL_TOTAL_PIXELS,
30};
31
32struct DS;
33struct DSVideo {
34	struct DS* p;
35	struct mTimingEvent event7;
36	struct mTimingEvent event9;
37
38	// VCOUNT
39	int vcount;
40
41	uint16_t* vram;
42
43	int32_t frameCounter;
44	int frameskip;
45	int frameskipCounter;
46};
47
48void DSVideoInit(struct DSVideo* video);
49void DSVideoReset(struct DSVideo* video);
50void DSVideoDeinit(struct DSVideo* video);
51
52struct DSCommon;
53void DSVideoWriteDISPSTAT(struct DSCommon* dscore, uint16_t value);
54
55CXX_GUARD_START
56
57#endif