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 | |
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24 | #ifndef __GPU_H__ |
25 | #define __GPU_H__ |
26 | |
0486fdc9 |
27 | #define PSXGPU_LCF (1<<31) |
28 | #define PSXGPU_nBUSY (1<<26) |
29 | #define PSXGPU_ILACE (1<<22) |
30 | #define PSXGPU_DHEIGHT (1<<19) |
31 | |
32 | // both must be set for interlace to work |
33 | #define PSXGPU_ILACE_BITS (PSXGPU_ILACE | PSXGPU_DHEIGHT) |
ddbaf678 |
34 | |
35 | #define HW_GPU_STATUS psxHu32ref(0x1814) |
36 | |
37 | // TODO: handle com too |
38 | #define PSXGPU_TIMING_BITS (PSXGPU_LCF | PSXGPU_nBUSY) |
39 | |
40 | #define gpuSyncPluginSR() { \ |
41 | HW_GPU_STATUS &= PSXGPU_TIMING_BITS; \ |
42 | HW_GPU_STATUS |= GPU_readStatus() & ~PSXGPU_TIMING_BITS; \ |
43 | } |
908e426c |
44 | |
45 | #endif /* __GPU_H__ */ |