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1 | /****************************************************************************** |
2 | * Arachnoid Graphics Plugin for Mupen64Plus |
3 | * http://bitbucket.org/wahrhaft/mupen64plus-video-arachnoid/ |
4 | * |
5 | * Copyright (C) 2007 Kristofer Karlsson, Rickard Niklasson |
6 | * |
7 | * This program is free software; you can redistribute it and/or |
8 | * modify it under the terms of the GNU General Public License |
9 | * as published by the Free Software Foundation; either version 2 |
10 | * of the License, or (at your option) any later version. |
11 | * |
12 | * This program is distributed in the hope that it will be useful, |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 | * GNU General Public License for more details. |
16 | * |
17 | * You should have received a copy of the GNU General Public License |
18 | * along with this program; if not, write to the Free Software |
19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
20 | *****************************************************************************/ |
21 | |
22 | #ifndef MEMORY_H_ |
23 | #define MEMORY_H_ |
24 | |
25 | //***************************************************************************** |
26 | //* Memory |
27 | //! Handle RDRAM, Texture Memory and Segments |
28 | //***************************************************************************** |
29 | class Memory |
30 | { |
31 | public: |
32 | |
33 | //Constructor / Destructor |
34 | Memory(); |
35 | ~Memory(); |
36 | |
37 | //Initialize |
38 | bool initialize(unsigned char* RDRAM, unsigned char* DMEM); |
39 | |
40 | //Get RDRAM |
41 | |
42 | unsigned char* getRDRAM(int address=0) { return &m_RDRAM[address]; } |
43 | unsigned int* getRDRAMint32() { return (unsigned int*)m_RDRAM; } |
44 | unsigned int getRDRAMSize() { return m_RDRAMSize; } |
45 | |
46 | //Get DMEM |
47 | unsigned char* getDMEM(int address=0) { return &m_DMEM[address]; } |
48 | |
49 | //Get Texture memory |
50 | static unsigned long long* getTextureMemory(int address=0) { return &m_TMEM[address]; } |
51 | |
52 | //Get Segment adress |
53 | unsigned int getRDRAMAddress(unsigned int segmentAddress) |
54 | { |
55 | return (m_segments[(segmentAddress >> 24) & 0x0F] + (segmentAddress & 0x00FFFFFF)) & 0x00FFFFFF; |
56 | } |
57 | |
58 | void setSegment(unsigned int address, unsigned int value) |
59 | { |
60 | if ( address >= 16 ) { |
61 | //ERROR |
62 | return; |
63 | } |
64 | |
65 | m_segments[address] = value; |
66 | } |
67 | |
68 | private: |
69 | |
70 | unsigned char* m_RDRAM; //!< Rambus Dynamic Random Access Memory |
71 | unsigned char* m_DMEM; //!< RSP Data Memory |
72 | static unsigned long long m_TMEM[512]; //!< Texture Memory |
73 | unsigned int m_segments[16]; //!< Temporary memory for storing segment values |
74 | unsigned int m_RDRAMSize; //!< Size of RDRAM |
75 | |
76 | }; |
77 | |
78 | #endif |