Commit | Line | Data |
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c2502333 | 1 | /* Pcsx - Pc Psx Emulator |
2 | * Copyright (C) 1999-2016 Pcsx Team | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License as published by | |
6 | * the Free Software Foundation; either version 2 of the License, or | |
7 | * (at your option) any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
15 | * along with this program; if not, see <http://www.gnu.org/licenses>. | |
16 | */ | |
ddbaf678 | 17 | |
18 | /* | |
19 | * q: Why bother with GPU stuff in a plugin-based emu core? | |
20 | * a: mostly because of busy bits, we have all the needed timing info | |
21 | * that GPU plugin doesn't. | |
22 | */ | |
23 | ||
7a8d521f | 24 | #ifndef __GPU_H__ |
25 | #define __GPU_H__ | |
26 | ||
db57cbb8 | 27 | #define PSXGPU_LCF (1u<<31) |
28 | #define PSXGPU_nBUSY (1u<<26) | |
29 | #define PSXGPU_ILACE (1u<<22) | |
30 | #define PSXGPU_DHEIGHT (1u<<19) | |
31 | #define PSXGPU_FIELD (1u<<13) | |
0486fdc9 | 32 | |
33 | // both must be set for interlace to work | |
db57cbb8 | 34 | #define PSXGPU_ILACE_BITS (PSXGPU_ILACE | PSXGPU_DHEIGHT | PSXGPU_FIELD) |
ddbaf678 | 35 | |
36 | #define HW_GPU_STATUS psxHu32ref(0x1814) | |
37 | ||
38 | // TODO: handle com too | |
db57cbb8 | 39 | #define PSXGPU_TIMING_BITS (PSXGPU_LCF | PSXGPU_nBUSY | PSXGPU_FIELD) |
ddbaf678 | 40 | |
41 | #define gpuSyncPluginSR() { \ | |
086adfff PC |
42 | HW_GPU_STATUS &= SWAP32(PSXGPU_TIMING_BITS); \ |
43 | HW_GPU_STATUS |= SWAP32(GPU_readStatus() & ~PSXGPU_TIMING_BITS); \ | |
ddbaf678 | 44 | } |
7a8d521f | 45 | |
abf09485 | 46 | enum psx_gpu_state { |
47 | PGS_VRAM_TRANSFER_START, | |
48 | PGS_VRAM_TRANSFER_END, | |
49 | PGS_PRIMITIVE_START, // for non-dma only | |
50 | }; | |
51 | ||
52 | void gpu_state_change(int what); | |
53 | ||
7a8d521f | 54 | #endif /* __GPU_H__ */ |