/*
	Copyright 2008 Haiku, Inc.  All rights reserved.
	Distributed under the terms of the MIT license.

	Authors:
	Gerald Zajac 2008
*/

#include "accel.h"


extern "C" void* 
get_accelerant_hook(uint32 feature, void* data)
{
	(void)data;		// avoid compiler warning for unused arg

	SharedInfo& si = *gInfo.sharedInfo;

	switch (feature) {
		// General
		case B_INIT_ACCELERANT:				return (void*)InitAccelerant;
		case B_UNINIT_ACCELERANT:			return (void*)UninitAccelerant;
		case B_CLONE_ACCELERANT:			return (void*)CloneAccelerant;
		case B_ACCELERANT_CLONE_INFO_SIZE:	return (void*)AccelerantCloneInfoSize;
		case B_GET_ACCELERANT_CLONE_INFO:	return (void*)GetAccelerantCloneInfo;
		case B_GET_ACCELERANT_DEVICE_INFO:	return (void*)GetAccelerantDeviceInfo;
		case B_ACCELERANT_RETRACE_SEMAPHORE: return (void*)AccelerantRetraceSemaphore;

		// Mode Configuration
		case B_ACCELERANT_MODE_COUNT:	return (void*)AccelerantModeCount;
		case B_GET_MODE_LIST:			return (void*)GetModeList;
		case B_PROPOSE_DISPLAY_MODE:	return (void*)ProposeDisplayMode;
		case B_SET_DISPLAY_MODE:		return (void*)SetDisplayMode;
		case B_GET_DISPLAY_MODE:		return (void*)GetDisplayMode;
#ifdef __HAIKU__
		case B_GET_PREFERRED_DISPLAY_MODE: return (void*)GetPreferredDisplayMode;
		case B_GET_EDID_INFO:			return (void*)GetEdidInfo;
#endif
		case B_GET_FRAME_BUFFER_CONFIG:	return (void*)GetFrameBufferConfig;
		case B_GET_PIXEL_CLOCK_LIMITS:	return (void*)GetPixelClockLimits;
		case B_MOVE_DISPLAY:			return (void*)MoveDisplay;
		case B_SET_INDEXED_COLORS:		return (void*)(gInfo.SetIndexedColors);
		case B_GET_TIMING_CONSTRAINTS:	return (void*)GetTimingConstraints;

		// DPMS
		case B_DPMS_CAPABILITIES:		return (void*)(gInfo.DPMSCapabilities);
		case B_DPMS_MODE:				return (void*)(gInfo.GetDPMSMode);
		case B_SET_DPMS_MODE:			return (void*)(gInfo.SetDPMSMode);

		// Cursor
		case B_SET_CURSOR_SHAPE:
			return (void*)(si.bDisableHdwCursor ? NULL : SetCursorShape);
		case B_MOVE_CURSOR:
			return (void*)(si.bDisableHdwCursor ? NULL : MoveCursor);
		case B_SHOW_CURSOR:
			return (void*)(si.bDisableHdwCursor ? NULL : gInfo.ShowCursor);

		// Engine Management
		case B_ACCELERANT_ENGINE_COUNT:	return (void*)AccelerantEngineCount;
		case B_ACQUIRE_ENGINE:			return (void*)AcquireEngine;
		case B_RELEASE_ENGINE:			return (void*)ReleaseEngine;
		case B_WAIT_ENGINE_IDLE:		return (void*)WaitEngineIdle;
		case B_GET_SYNC_TOKEN:			return (void*)GetSyncToken;
		case B_SYNC_TO_TOKEN:			return (void*)SyncToToken;

		// 2D acceleration
		case B_SCREEN_TO_SCREEN_BLIT:
			return (void*)(si.bDisableAccelDraw ? NULL : gInfo.ScreenToScreenBlit);
		case B_FILL_RECTANGLE:
			return (void*)(si.bDisableAccelDraw ? NULL : gInfo.FillRectangle);
		case B_INVERT_RECTANGLE:
			return (void*)(si.bDisableAccelDraw ? NULL : gInfo.InvertRectangle);
		case B_FILL_SPAN:
			return (void*)(si.bDisableAccelDraw ? NULL : gInfo.FillSpan);
	}

	return NULL;	// Return null pointer for any feature not handled above
}