src/add-ons/accelerants/et6x00/GetAccelerantHook.c

   1 /*****************************************************************************\
   2  * Tseng Labs ET6000, ET6100 and ET6300 graphics driver for BeOS 5.
   3  * Copyright (c) 2003-2004, Evgeniy Vladimirovich Bobkov.
   4 \*****************************************************************************/
   5
   6 #include "generic.h"
   7
   8
   9 /*****************************************************************************/
  10 /*
  11  * The standard entry point.  Given a uint32 feature identifier, this routine
  12  * returns a pointer to the function that implements the feature. Some features
  13  * require more information than just the identifier to select the proper
  14  * function. The extra information (which is specific to the feature) is
  15  * pointed at by the void *data parameter. By default, no extra information
  16  * is available. Any extra information available to choose the function will
  17  * be noted on a case by case below.
  18  */
  19 void *get_accelerant_hook(uint32 feature, void *data) {
  20 /* These definition is out of pure lazyness.*/
  21 #define HOOK(x) case B_##x: return (void *)x
  22
  23     switch (feature) {
  24
  25         /*
  26          * One of either B_INIT_ACCELERANT or B_CLONE_ACCELERANT will be
  27          * requested and subsequently called before any other hook is
  28          * requested. All other feature hook selections can be predicated
  29          * on variables assigned during the accelerant initialization process.
  30          */
  31         /* initialization */
  32         HOOK(INIT_ACCELERANT);
  33         HOOK(CLONE_ACCELERANT);
  34
  35         HOOK(ACCELERANT_CLONE_INFO_SIZE);
  36         HOOK(GET_ACCELERANT_CLONE_INFO);
  37         HOOK(UNINIT_ACCELERANT);
  38         HOOK(GET_ACCELERANT_DEVICE_INFO);
  39
  40 ///     HOOK(ACCELERANT_RETRACE_SEMAPHORE); /* Not implemented. Would be useful to have it implemented. */
  41
  42         /* mode configuration */
  43         HOOK(ACCELERANT_MODE_COUNT);
  44         HOOK(GET_MODE_LIST);
  45 ///     HOOK(PROPOSE_DISPLAY_MODE);
  46         HOOK(SET_DISPLAY_MODE);
  47         HOOK(GET_DISPLAY_MODE);
  48         HOOK(GET_FRAME_BUFFER_CONFIG);
  49         HOOK(GET_PIXEL_CLOCK_LIMITS);
  50
  51         /* synchronization */
  52         HOOK(ACCELERANT_ENGINE_COUNT);
  53         HOOK(ACQUIRE_ENGINE);
  54         HOOK(RELEASE_ENGINE);
  55         HOOK(WAIT_ENGINE_IDLE);
  56         HOOK(GET_SYNC_TOKEN);
  57         HOOK(SYNC_TO_TOKEN);
  58
  59         /* 2D acceleration */
  60         HOOK(SCREEN_TO_SCREEN_BLIT);
  61         HOOK(FILL_RECTANGLE);
  62     }
  63
  64     /* Return a null pointer for any feature we don't understand. */
  65     return 0;
  66
  67 #undef HOOK
  68 }
  69 /*****************************************************************************/