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_GX_H
 7#define DS_GX_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#include <mgba-util/circle-buffer.h>
16
17mLOG_DECLARE_CATEGORY(DS_GX);
18
19enum DSGXCommand {
20	DS_GX_CMD_NOP = 0,
21	DS_GX_CMD_MTX_MODE = 0x10,
22	DS_GX_CMD_MTX_PUSH = 0x11,
23	DS_GX_CMD_MTX_POP = 0x12,
24	DS_GX_CMD_MTX_STORE = 0x13,
25	DS_GX_CMD_MTX_RESTORE = 0x14,
26	DS_GX_CMD_MTX_IDENTITY = 0x15,
27	DS_GX_CMD_MTX_LOAD_4x4 = 0x16,
28	DS_GX_CMD_MTX_LOAD_4x3 = 0x17,
29	DS_GX_CMD_MTX_MULT_4x4 = 0x18,
30	DS_GX_CMD_MTX_MULT_4x3 = 0x19,
31	DS_GX_CMD_MTX_MULT_3x3 = 0x1A,
32	DS_GX_CMD_MTX_SCALE = 0x1B,
33	DS_GX_CMD_MTX_TRANS = 0x1C,
34	DS_GX_CMD_COLOR = 0x20,
35	DS_GX_CMD_NORMAL = 0x21,
36	DS_GX_CMD_TEXCOORD = 0x22,
37	DS_GX_CMD_VTX_16 = 0x23,
38	DS_GX_CMD_VTX_10 = 0x24,
39	DS_GX_CMD_VTX_XY = 0x25,
40	DS_GX_CMD_VTX_XZ = 0x26,
41	DS_GX_CMD_VTX_YZ = 0x27,
42	DS_GX_CMD_VTX_DIFF = 0x28,
43	DS_GX_CMD_POLYGON_ATTR = 0x29,
44	DS_GX_CMD_TEXIMAGE_PARAM = 0x2A,
45	DS_GX_CMD_PLTT_BASE = 0x2B,
46	DS_GX_CMD_DIF_AMB = 0x30,
47	DS_GX_CMD_SPE_EMI = 0x31,
48	DS_GX_CMD_LIGHT_VECTOR = 0x32,
49	DS_GX_CMD_LIGHT_COLOR = 0x33,
50	DS_GX_CMD_SHININESS = 0x34,
51	DS_GX_CMD_BEGIN_VTXS = 0x40,
52	DS_GX_CMD_END_VTXS = 0x41,
53	DS_GX_CMD_SWAP_BUFFERS = 0x50,
54	DS_GX_CMD_VIEWPORT = 0x60,
55	DS_GX_CMD_BOX_TEST = 0x70,
56	DS_GX_CMD_POS_TEST = 0x71,
57	DS_GX_CMD_VEC_TEST = 0x72,
58
59	DS_GX_CMD_MAX
60};
61
62#pragma pack(push, 1)
63struct DSGXEntry {
64	uint8_t command;
65	uint8_t params[4];
66};
67#pragma pack(pop)
68
69struct DS;
70struct DSGX {
71	struct DS* p;
72	struct DSGXEntry pipe[4];
73	struct CircleBuffer fifo;
74
75	struct mTimingEvent fifoEvent;
76};
77
78void DSGXInit(struct DSGX*);
79void DSGXDeinit(struct DSGX*);
80void DSGXReset(struct DSGX*);
81
82uint16_t DSGXWriteRegister(struct DSGX*, uint32_t address, uint16_t value);
83uint32_t DSGXWriteRegister32(struct DSGX*, uint32_t address, uint32_t value);
84
85CXX_GUARD_END
86
87#endif