native_wayland_drm_bufmgr_helper.c revision 1aaec8c60985ffe03af265bf8f659ee0319926ca 
1#include <stdint.h>
2#include <string.h>
3
4#include "native.h"
5#include "util/u_inlines.h"
6#include "state_tracker/drm_driver.h"
7
8#ifdef HAVE_WAYLAND_BACKEND
9
10#include <wayland-server.h>
11#include <wayland-drm-server-protocol.h>
12
13#include "native_wayland_drm_bufmgr_helper.h"
14
15void
16egl_g3d_wl_drm_helper_reference_buffer(void *user_data, uint32_t name,
17                                       struct wl_drm_buffer *buffer)
18{
19   struct native_display *ndpy = user_data;
20   struct pipe_resource templ;
21   struct winsys_handle wsh;
22   enum pipe_format pf;
23
24   switch (buffer->format) {
25   case WL_DRM_FORMAT_ARGB8888:
26      pf = PIPE_FORMAT_B8G8R8A8_UNORM;
27      break;
28   case WL_DRM_FORMAT_XRGB8888:
29      pf = PIPE_FORMAT_B8G8R8X8_UNORM;
30      break;
31   default:
32      pf = PIPE_FORMAT_NONE;
33      break;
34   }
35
36   if (pf == PIPE_FORMAT_NONE)
37      return;
38
39   memset(&templ, 0, sizeof(templ));
40   templ.target = PIPE_TEXTURE_2D;
41   templ.format = pf;
42   templ.bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
43   templ.width0 = buffer->buffer.width;
44   templ.height0 = buffer->buffer.height;
45   templ.depth0 = 1;
46   templ.array_size = 1;
47
48   memset(&wsh, 0, sizeof(wsh));
49   wsh.handle = name;
50   wsh.stride = buffer->stride[0];
51
52   buffer->driver_buffer =
53      ndpy->screen->resource_from_handle(ndpy->screen, &templ, &wsh);
54}
55
56void
57egl_g3d_wl_drm_helper_unreference_buffer(void *user_data,
58                                         struct wl_drm_buffer *buffer)
59{
60   struct pipe_resource *resource = buffer->driver_buffer;
61
62   pipe_resource_reference(&resource, NULL);
63}
64
65struct pipe_resource *
66egl_g3d_wl_drm_common_wl_buffer_get_resource(struct native_display *ndpy,
67                                             struct wl_buffer *buffer)
68{
69   return wayland_drm_buffer_get_buffer(buffer);
70}
71
72#endif
73