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                                        int32_t width, int32_t height,
  18                                        uint32_t stride, uint32_t format)
  19 {
  20    struct native_display *ndpy = user_data;
  21    struct pipe_resource templ;
  22    struct winsys_handle wsh;
  23    enum pipe_format pf;
  24
  25    switch (format) {
  26    case WL_DRM_FORMAT_ARGB32:
  27    case WL_DRM_FORMAT_PREMULTIPLIED_ARGB32:
  28       pf = PIPE_FORMAT_B8G8R8A8_UNORM;
  29       break;
  30    case WL_DRM_FORMAT_XRGB32:
  31       pf = PIPE_FORMAT_B8G8R8X8_UNORM;
  32       break;
  33    default:
  34       pf = PIPE_FORMAT_NONE;
  35       break;
  36    }
  37
  38    if (pf == PIPE_FORMAT_NONE)
  39       return NULL;
  40
  41    memset(&templ, 0, sizeof(templ));
  42    templ.target = PIPE_TEXTURE_2D;
  43    templ.format = pf;
  44    templ.bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
  45    templ.width0 = width;
  46    templ.height0 = height;
  47    templ.depth0 = 1;
  48    templ.array_size = 1;
  49
  50    memset(&wsh, 0, sizeof(wsh));
  51    wsh.handle = name;
  52    wsh.stride = stride;
  53
  54    return ndpy->screen->resource_from_handle(ndpy->screen, &templ, &wsh);
  55 }
  56
  57 void
  58 egl_g3d_wl_drm_helper_unreference_buffer(void *user_data, void *buffer)
  59 {
  60    struct pipe_resource *resource = 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