src/gallium/targets/graw-null/graw_null.c

   1 #include "pipe/p_compiler.h"
   2 #include "util/u_debug.h"
   3 #include "util/u_memory.h"
   4 #include "target-helpers/wrap_screen.h"
   5 #include "sw/null/null_sw_winsys.h"
   6 #include "os/os_time.h"
   7 #include "state_tracker/graw.h"
   8
   9 #ifdef GALLIUM_SOFTPIPE
  10 #include "softpipe/sp_public.h"
  11 #endif
  12
  13 #ifdef GALLIUM_LLVMPIPE
  14 #include "llvmpipe/lp_public.h"
  15 #endif
  16
  17 /* Haven't figured out a decent way to build the helper code yet -
  18  * #include it here temporarily.
  19  */
  20 #include "sw/sw_public.h"
  21 #include "sw/sw.c"
  22
  23 #include <stdio.h>
  24
  25
  26 static struct {
  27    void (*draw)(void);
  28 } graw;
  29
  30
  31
  32 struct pipe_screen *
  33 graw_create_window_and_screen( int x,
  34                                int y,
  35                                unsigned width,
  36                                unsigned height,
  37                                enum pipe_format format,
  38                                void **handle)
  39 {
  40    const char *default_driver;
  41    const char *driver;
  42    struct pipe_screen *screen = NULL;
  43    struct sw_winsys *winsys = NULL;
  44    static int dummy;
  45
  46
  47    /* Create the underlying winsys, which performs presents to Xlib
  48     * drawables:
  49     */
  50    winsys = null_sw_create();
  51    if (winsys == NULL)
  52       return NULL;
  53
  54 #if defined(GALLIUM_LLVMPIPE)
  55    default_driver = "llvmpipe";
  56 #elif defined(GALLIUM_SOFTPIPE)
  57    default_driver = "softpipe";
  58 #else
  59    default_driver = "";
  60 #endif
  61
  62    driver = debug_get_option("GALLIUM_DRIVER", default_driver);
  63
  64 #if defined(GALLIUM_LLVMPIPE)
  65    if (screen == NULL && strcmp(driver, "llvmpipe") == 0)
  66       screen = llvmpipe_create_screen( winsys );
  67 #endif
  68
  69 #if defined(GALLIUM_SOFTPIPE)
  70    if (screen == NULL)
  71       screen = softpipe_create_screen( winsys );
  72 #endif
  73
  74    *handle = &dummy;
  75
  76    /* Inject any wrapping layers we want to here:
  77     */
  78    return gallium_wrap_screen( screen );
  79 }
  80
  81
  82
  83 void
  84 graw_set_display_func( void (*draw)( void ) )
  85 {
  86    graw.draw = draw;
  87 }
  88
  89
  90 void
  91 graw_main_loop( void )
  92 {
  93    graw.draw();
  94    os_time_sleep(100000);
  95 }