[pcsx_rearmed.git] / libpcsxcore / gpu.h


/*
 * q: Why bother with GPU stuff in a plugin-based emu core?
 * a: mostly because of busy bits, we have all the needed timing info
 *    that GPU plugin doesn't.
 */

#define PSXGPU_LCF     (1<<31)
#define PSXGPU_nBUSY   (1<<26)
#define PSXGPU_ILACE   (1<<22)
#define PSXGPU_DHEIGHT (1<<19)

// both must be set for interlace to work
#define PSXGPU_ILACE_BITS (PSXGPU_ILACE | PSXGPU_DHEIGHT)

#define HW_GPU_STATUS psxHu32ref(0x1814)

// TODO: handle com too
#define PSXGPU_TIMING_BITS (PSXGPU_LCF | PSXGPU_nBUSY)

#define gpuSyncPluginSR() { \
	HW_GPU_STATUS &= PSXGPU_TIMING_BITS; \
	HW_GPU_STATUS |= GPU_readStatus() & ~PSXGPU_TIMING_BITS; \
}
Commit	Line	Data
ddbaf678	1
	2	/*
	3	* q: Why bother with GPU stuff in a plugin-based emu core?
	4	* a: mostly because of busy bits, we have all the needed timing info
	5	* that GPU plugin doesn't.
	6	*/
	7
0486fdc9	8	#define PSXGPU_LCF (1<<31)
	9	#define PSXGPU_nBUSY (1<<26)
	10	#define PSXGPU_ILACE (1<<22)
	11	#define PSXGPU_DHEIGHT (1<<19)
	12
	13	// both must be set for interlace to work
	14	#define PSXGPU_ILACE_BITS (PSXGPU_ILACE \| PSXGPU_DHEIGHT)
ddbaf678	15
	16	#define HW_GPU_STATUS psxHu32ref(0x1814)
	17
	18	// TODO: handle com too
	19	#define PSXGPU_TIMING_BITS (PSXGPU_LCF \| PSXGPU_nBUSY)
	20
	21	#define gpuSyncPluginSR() { \
	22	HW_GPU_STATUS &= PSXGPU_TIMING_BITS; \
	23	HW_GPU_STATUS \|= GPU_readStatus() & ~PSXGPU_TIMING_BITS; \
	24	}