| 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 |