/*
        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
}