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      1 
      2 #ifndef SW_HELPER_H
      3 #define SW_HELPER_H
      4 
      5 #include "pipe/p_compiler.h"
      6 #include "util/u_debug.h"
      7 #include "target-helpers/sw_helper_public.h"
      8 #include "state_tracker/sw_winsys.h"
      9 
     10 
     11 /* Helper function to choose and instantiate one of the software rasterizers:
     12  * llvmpipe, softpipe, swr.
     13  */
     14 
     15 #ifdef GALLIUM_SOFTPIPE
     16 #include "softpipe/sp_public.h"
     17 #endif
     18 
     19 #ifdef GALLIUM_LLVMPIPE
     20 #include "llvmpipe/lp_public.h"
     21 #endif
     22 
     23 #ifdef GALLIUM_SWR
     24 #include "swr/swr_public.h"
     25 #endif
     26 
     27 #ifdef GALLIUM_VIRGL
     28 #include "virgl/virgl_public.h"
     29 #include "virgl/vtest/virgl_vtest_public.h"
     30 #endif
     31 
     32 static inline struct pipe_screen *
     33 sw_screen_create_named(struct sw_winsys *winsys, const char *driver)
     34 {
     35    struct pipe_screen *screen = NULL;
     36 
     37 #if defined(GALLIUM_LLVMPIPE)
     38    if (screen == NULL && strcmp(driver, "llvmpipe") == 0)
     39       screen = llvmpipe_create_screen(winsys);
     40 #endif
     41 
     42 #if defined(GALLIUM_VIRGL)
     43    if (screen == NULL && strcmp(driver, "virpipe") == 0) {
     44       struct virgl_winsys *vws;
     45       vws = virgl_vtest_winsys_wrap(winsys);
     46       screen = virgl_create_screen(vws);
     47    }
     48 #endif
     49 
     50 #if defined(GALLIUM_SOFTPIPE)
     51    if (screen == NULL && strcmp(driver, "softpipe") == 0)
     52       screen = softpipe_create_screen(winsys);
     53 #endif
     54 
     55 #if defined(GALLIUM_SWR)
     56    if (screen == NULL && strcmp(driver, "swr") == 0)
     57       screen = swr_create_screen(winsys);
     58 #endif
     59 
     60    return screen;
     61 }
     62 
     63 
     64 struct pipe_screen *
     65 sw_screen_create(struct sw_winsys *winsys)
     66 {
     67    const char *default_driver;
     68    const char *driver;
     69 
     70 #if defined(GALLIUM_LLVMPIPE)
     71    default_driver = "llvmpipe";
     72 #elif defined(GALLIUM_SOFTPIPE)
     73    default_driver = "softpipe";
     74 #elif defined(GALLIUM_SWR)
     75    default_driver = "swr";
     76 #else
     77    default_driver = "";
     78 #endif
     79 
     80    driver = debug_get_option("GALLIUM_DRIVER", default_driver);
     81    return sw_screen_create_named(winsys, driver);
     82 }
     83 
     84 #endif
     85