src/gallium/state_trackers/python/st_llvmpipe_winsys.c

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   3  * Copyright 2010 VMware, Inc.
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  28
  29 /**
  30  * @file
  31  * Llvmpipe support.
  32  *
  33  * @author Jose Fonseca
  34  */
  35
  36
  37 #include "pipe/p_format.h"
  38 #include "pipe/p_context.h"
  39 #include "util/u_inlines.h"
  40 #include "util/u_math.h"
  41 #include "util/u_memory.h"
  42 #include "llvmpipe/lp_winsys.h"
  43 #include "st_winsys.h"
  44
  45
  46 static boolean
  47 llvmpipe_ws_is_displaytarget_format_supported( struct llvmpipe_winsys *ws,
  48       enum pipe_format format )
  49 {
  50    return FALSE;
  51 }
  52
  53
  54 static void *
  55 llvmpipe_ws_displaytarget_map(struct llvmpipe_winsys *ws,
  56                               struct llvmpipe_displaytarget *dt,
  57                               unsigned flags )
  58 {
  59    assert(0);
  60    return NULL;
  61 }
  62
  63
  64 static void
  65 llvmpipe_ws_displaytarget_unmap(struct llvmpipe_winsys *ws,
  66                                 struct llvmpipe_displaytarget *dt )
  67 {
  68    assert(0);
  69 }
  70
  71
  72 static void
  73 llvmpipe_ws_displaytarget_destroy(struct llvmpipe_winsys *winsys,
  74                                   struct llvmpipe_displaytarget *dt)
  75 {
  76    assert(0);
  77 }
  78
  79
  80 static struct llvmpipe_displaytarget *
  81 llvmpipe_ws_displaytarget_create(struct llvmpipe_winsys *winsys,
  82                                  enum pipe_format format,
  83                                  unsigned width, unsigned height,
  84                                  unsigned alignment,
  85                                  unsigned *stride)
  86 {
  87    return NULL;
  88 }
  89
  90
  91 static void
  92 llvmpipe_ws_displaytarget_display(struct llvmpipe_winsys *winsys,
  93                                   struct llvmpipe_displaytarget *dt,
  94                                   void *context_private)
  95 {
  96    assert(0);
  97 }
  98
  99
 100 static void
 101 llvmpipe_ws_destroy(struct llvmpipe_winsys *winsys)
 102 {
 103    FREE(winsys);
 104 }
 105
 106
 107 static struct pipe_screen *
 108 st_llvmpipe_screen_create(void)
 109 {
 110    static struct llvmpipe_winsys *winsys;
 111    struct pipe_screen *screen;
 112
 113    winsys = CALLOC_STRUCT(llvmpipe_winsys);
 114    if (!winsys)
 115       goto no_winsys;
 116
 117    winsys->destroy = llvmpipe_ws_destroy;
 118    winsys->is_displaytarget_format_supported = llvmpipe_ws_is_displaytarget_format_supported;
 119    winsys->displaytarget_create = llvmpipe_ws_displaytarget_create;
 120    winsys->displaytarget_map = llvmpipe_ws_displaytarget_map;
 121    winsys->displaytarget_unmap = llvmpipe_ws_displaytarget_unmap;
 122    winsys->displaytarget_display = llvmpipe_ws_displaytarget_display;
 123    winsys->displaytarget_destroy = llvmpipe_ws_displaytarget_destroy;
 124
 125    screen = llvmpipe_create_screen(winsys);
 126    if (!screen)
 127       goto no_screen;
 128
 129    return screen;
 130
 131 no_screen:
 132    FREE(winsys);
 133 no_winsys:
 134    return NULL;
 135 }
 136
 137
 138
 139 const struct st_winsys st_softpipe_winsys = {
 140    &st_llvmpipe_screen_create
 141 };