src/gallium/state_trackers/egl/common/native_wayland_drm_bufmgr_helper.c

   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
  15 void
  16 egl_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->stride0;
  51
  52    buffer->driver_buffer =
  53       ndpy->screen->resource_from_handle(ndpy->screen, &templ, &wsh);
  54 }
  55
  56 void
  57 egl_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
  65 struct pipe_resource *
  66 egl_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