1 /* Pcsx - Pc Psx Emulator
2 * Copyright (C) 1999-2016 Pcsx Team
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.
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.
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>.
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.
29 typedef struct GPUFreeze {
30 uint32_t ulFreezeVersion;
32 uint32_t ulControl[256];
33 unsigned char psxVRam[1024*512*2];
36 #define PSXGPU_LCF (1u<<31)
37 #define PSXGPU_nBUSY (1u<<26)
38 #define PSXGPU_ILACE (1u<<22)
39 #define PSXGPU_RGB24 (1u<<21)
40 #define PSXGPU_DHEIGHT (1u<<19)
41 #define PSXGPU_FIELD (1u<<13)
43 // both must be set for interlace to work
44 #define PSXGPU_ILACE_BITS (PSXGPU_ILACE | PSXGPU_DHEIGHT)
46 #define HW_GPU_STATUS psxHu32ref(0x1814)
48 // TODO: handle com too
49 #define PSXGPU_TIMING_BITS (PSXGPU_LCF | PSXGPU_nBUSY | PSXGPU_FIELD)
51 #define gpuSyncPluginSR() { \
52 HW_GPU_STATUS &= SWAP32(PSXGPU_TIMING_BITS); \
53 HW_GPU_STATUS |= SWAP32(GPU_readStatus() & ~PSXGPU_TIMING_BITS); \
57 PGS_VRAM_TRANSFER_START,
58 PGS_VRAM_TRANSFER_END,
59 PGS_PRIMITIVE_START, // for non-dma only
62 void gpu_state_change(int what, int cycles);
64 #endif /* __GPU_H__ */