src/gallium/state_trackers/python/st_softpipe_winsys.c

   1 /**************************************************************************
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   3  * Copyright 2007 Tungsten Graphics, Inc., Bismarck, ND., USA
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  27  **************************************************************************/
  28
  29 #include "util/u_debug.h"
  30 #include "softpipe/sp_public.h"
  31 #include "llvmpipe/lp_public.h"
  32 #include "state_tracker/sw_winsys.h"
  33 #include "sw/null/null_sw_winsys.h"
  34 #include "st_winsys.h"
  35
  36
  37 struct pipe_screen *
  38 st_software_screen_create(const char *driver)
  39 {
  40    struct sw_winsys *ws;
  41    struct pipe_screen *screen = NULL;
  42
  43    if (!driver) {
  44       const char *default_driver;
  45
  46 #if defined(HAVE_LLVMPIPE)
  47       default_driver = "llvmpipe";
  48 #elif defined(HAVE_SOFTPIPE)
  49       default_driver = "softpipe";
  50 #else
  51       default_driver = "";
  52 #endif
  53
  54       driver = debug_get_option("GALLIUM_DRIVER", default_driver);
  55    }
  56
  57    ws = null_sw_create();
  58    if(!ws)
  59       return NULL;
  60
  61 #ifdef HAVE_LLVMPIPE
  62    if (strcmp(driver, "llvmpipe") == 0) {
  63       screen = llvmpipe_create_screen(ws);
  64    }
  65 #endif
  66
  67 #ifdef HAVE_SOFTPIPE
  68    if (strcmp(driver, "softpipe") == 0) {
  69       screen = softpipe_create_screen(ws);
  70    }
  71 #endif
  72
  73    if (!screen) {
  74       ws->destroy(ws);
  75    }
  76
  77    return screen;
  78 }