egl/wayland: add missing newline between functions
[mesa.git] / src / egl / drivers / dri2 / platform_surfaceless.c
index 6aea5876ae055367729f44c9ce5699f8abf03a07..8d37e8e9f4f4d9ca6342ec0df0195c4415bd1dd8 100644 (file)
@@ -60,6 +60,9 @@ surfaceless_free_images(struct dri2_egl_surface *dri2_surf)
       dri2_dpy->image->destroyImage(dri2_surf->front);
       dri2_surf->front = NULL;
    }
+
+   free(dri2_surf->swrast_device_buffer);
+   dri2_surf->swrast_device_buffer = NULL;
 }
 
 static int
@@ -124,29 +127,24 @@ dri2_surfaceless_create_surface(_EGLDriver *drv, _EGLDisplay *disp, EGLint type,
       return NULL;
    }
 
-   if (!_eglInitSurface(&dri2_surf->base, disp, type, conf, attrib_list))
+   if (!dri2_init_surface(&dri2_surf->base, disp, type, conf, attrib_list,
+                          false, NULL))
       goto cleanup_surface;
 
    config = dri2_get_dri_config(dri2_conf, type,
                                 dri2_surf->base.GLColorspace);
 
-   if (!config)
+   if (!config) {
+      _eglError(EGL_BAD_MATCH, "Unsupported surfacetype/colorspace configuration");
       goto cleanup_surface;
+   }
 
-   dri2_surf->dri_drawable =
-      dri2_dpy->dri2->createNewDrawable(dri2_dpy->dri_screen, config,
-                                        dri2_surf);
-   if (dri2_surf->dri_drawable == NULL) {
-      _eglError(EGL_BAD_ALLOC, "dri2->createNewDrawable");
+   dri2_surf->visual = dri2_image_format_for_pbuffer_config(dri2_dpy, config);
+   if (dri2_surf->visual == __DRI_IMAGE_FORMAT_NONE)
       goto cleanup_surface;
-    }
 
-   if (conf->RedSize == 5)
-      dri2_surf->visual = __DRI_IMAGE_FORMAT_RGB565;
-   else if (conf->AlphaSize == 0)
-      dri2_surf->visual = __DRI_IMAGE_FORMAT_XRGB8888;
-   else
-      dri2_surf->visual = __DRI_IMAGE_FORMAT_ARGB8888;
+   if (!dri2_create_drawable(dri2_dpy, config, dri2_surf, dri2_surf))
+      goto cleanup_surface;
 
    return &dri2_surf->base;
 
@@ -165,6 +163,7 @@ surfaceless_destroy_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *sur
 
    dri2_dpy->core->destroyDrawable(dri2_surf->dri_drawable);
 
+   dri2_fini_surface(surf);
    free(dri2_surf);
    return EGL_TRUE;
 }
@@ -177,65 +176,11 @@ dri2_surfaceless_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *disp,
                                   attrib_list);
 }
 
-static EGLBoolean
-surfaceless_swap_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf)
-{
-   assert(!surf || surf->Type == EGL_PBUFFER_BIT);
-
-   /* From the EGL 1.5 spec:
-    *    If surface is a [...] pbuffer surface, eglSwapBuffers has no effect.
-    */
-   return EGL_TRUE;
-}
-
-static EGLBoolean
-surfaceless_add_configs_for_visuals(_EGLDriver *drv, _EGLDisplay *dpy)
-{
-   struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
-   static const struct {
-      const char *format_name;
-      unsigned int rgba_masks[4];
-   } visuals[] = {
-      { "ARGB8888", { 0xff0000, 0xff00, 0xff, 0xff000000 } },
-      { "RGB888",   { 0xff0000, 0xff00, 0xff, 0x0 } },
-      { "RGB565",   { 0x00f800, 0x07e0, 0x1f, 0x0 } },
-   };
-   unsigned int format_count[ARRAY_SIZE(visuals)] = { 0 };
-   unsigned int count, i, j;
-
-   count = 0;
-   for (i = 0; dri2_dpy->driver_configs[i] != NULL; i++) {
-      for (j = 0; j < ARRAY_SIZE(visuals); j++) {
-         struct dri2_egl_config *dri2_conf;
-
-         dri2_conf = dri2_add_config(dpy, dri2_dpy->driver_configs[i],
-               count + 1, EGL_PBUFFER_BIT, NULL, visuals[j].rgba_masks);
-
-         if (dri2_conf) {
-            count++;
-            format_count[j]++;
-         }
-      }
-   }
-
-   for (i = 0; i < ARRAY_SIZE(format_count); i++) {
-      if (!format_count[i]) {
-         _eglLog(_EGL_DEBUG, "No DRI config supports native format %s",
-               visuals[i].format_name);
-      }
-   }
-
-   return (count != 0);
-}
-
 static const struct dri2_egl_display_vtbl dri2_surfaceless_display_vtbl = {
    .create_pixmap_surface = dri2_fallback_create_pixmap_surface,
    .create_pbuffer_surface = dri2_surfaceless_create_pbuffer_surface,
    .destroy_surface = surfaceless_destroy_surface,
    .create_image = dri2_create_image_khr,
-   .swap_interval = dri2_fallback_swap_interval,
-   .swap_buffers = surfaceless_swap_buffers,
-   .swap_buffers_with_damage = dri2_fallback_swap_buffers_with_damage,
    .swap_buffers_region = dri2_fallback_swap_buffers_region,
    .post_sub_buffer = dri2_fallback_post_sub_buffer,
    .copy_buffers = dri2_fallback_copy_buffers,
@@ -250,14 +195,25 @@ surfaceless_flush_front_buffer(__DRIdrawable *driDrawable, void *loaderPrivate)
 {
 }
 
+static unsigned
+surfaceless_get_capability(void *loaderPrivate, enum dri_loader_cap cap)
+{
+   /* Note: loaderPrivate is _EGLDisplay* */
+   switch (cap) {
+   case DRI_LOADER_CAP_FP16:
+      return 1;
+   default:
+      return 0;
+   }
+}
+
 static const __DRIimageLoaderExtension image_loader_extension = {
-   .base             = { __DRI_IMAGE_LOADER, 1 },
+   .base             = { __DRI_IMAGE_LOADER, 2 },
    .getBuffers       = surfaceless_image_get_buffers,
    .flushFrontBuffer = surfaceless_flush_front_buffer,
+   .getCapability    = surfaceless_get_capability,
 };
 
-#define DRM_RENDER_DEV_NAME  "%s/renderD%d"
-
 static const __DRIextension *image_loader_extensions[] = {
    &image_loader_extension.base,
    &image_lookup_extension.base,
@@ -265,15 +221,111 @@ static const __DRIextension *image_loader_extensions[] = {
    NULL,
 };
 
+static const __DRIextension *swrast_loader_extensions[] = {
+   &swrast_pbuffer_loader_extension.base,
+   &image_loader_extension.base,
+   &image_lookup_extension.base,
+   &use_invalidate.base,
+   NULL,
+};
+
+static bool
+surfaceless_probe_device(_EGLDisplay *disp, bool swrast)
+{
+#define MAX_DRM_DEVICES 64
+   const unsigned node_type = swrast ? DRM_NODE_PRIMARY : DRM_NODE_RENDER;
+   struct dri2_egl_display *dri2_dpy = disp->DriverData;
+   drmDevicePtr device, devices[MAX_DRM_DEVICES] = { NULL };
+   int i, num_devices;
+
+   num_devices = drmGetDevices2(0, devices, ARRAY_SIZE(devices));
+   if (num_devices < 0)
+      return false;
+
+   for (i = 0; i < num_devices; ++i) {
+      device = devices[i];
+
+      if (!(device->available_nodes & (1 << node_type)))
+         continue;
+
+      dri2_dpy->fd = loader_open_device(device->nodes[node_type]);
+      if (dri2_dpy->fd < 0)
+         continue;
+
+      disp->Device = _eglAddDevice(dri2_dpy->fd, swrast);
+      if (!disp->Device) {
+         close(dri2_dpy->fd);
+         dri2_dpy->fd = -1;
+         continue;
+      }
+
+      char *driver_name = loader_get_driver_for_fd(dri2_dpy->fd);
+      if (swrast) {
+         /* Use kms swrast only with vgem / virtio_gpu.
+          * virtio-gpu fallbacks to software rendering when 3D features
+          * are unavailable since 6c5ab, and kms_swrast is more
+          * feature complete than swrast.
+          */
+         if (driver_name &&
+             (strcmp(driver_name, "vgem") == 0 ||
+              strcmp(driver_name, "virtio_gpu") == 0))
+            dri2_dpy->driver_name = strdup("kms_swrast");
+         free(driver_name);
+      } else {
+         /* Use the given hardware driver */
+         dri2_dpy->driver_name = driver_name;
+      }
+
+      if (dri2_dpy->driver_name && dri2_load_driver_dri3(disp))
+         break;
+
+      free(dri2_dpy->driver_name);
+      dri2_dpy->driver_name = NULL;
+      close(dri2_dpy->fd);
+      dri2_dpy->fd = -1;
+   }
+   drmFreeDevices(devices, num_devices);
+
+   if (i == num_devices)
+      return false;
+
+   if (swrast)
+      dri2_dpy->loader_extensions = swrast_loader_extensions;
+   else
+      dri2_dpy->loader_extensions = image_loader_extensions;
+
+   return true;
+}
+
+static bool
+surfaceless_probe_device_sw(_EGLDisplay *disp)
+{
+   struct dri2_egl_display *dri2_dpy = disp->DriverData;
+
+   dri2_dpy->fd = -1;
+   disp->Device = _eglAddDevice(dri2_dpy->fd, true);
+   assert(disp->Device);
+
+   dri2_dpy->driver_name = strdup("swrast");
+   if (!dri2_dpy->driver_name)
+      return false;
+
+   if (!dri2_load_driver_swrast(disp)) {
+      free(dri2_dpy->driver_name);
+      dri2_dpy->driver_name = NULL;
+      return false;
+   }
+
+   dri2_dpy->loader_extensions = swrast_loader_extensions;
+   return true;
+}
+
 EGLBoolean
 dri2_initialize_surfaceless(_EGLDriver *drv, _EGLDisplay *disp)
 {
    struct dri2_egl_display *dri2_dpy;
    const char* err;
-   int i;
-   int driver_loaded = 0;
-
-   loader_set_logger(_eglLog);
+   bool driver_loaded = false;
 
    dri2_dpy = calloc(1, sizeof *dri2_dpy);
    if (!dri2_dpy)
@@ -282,39 +334,24 @@ dri2_initialize_surfaceless(_EGLDriver *drv, _EGLDisplay *disp)
    dri2_dpy->fd = -1;
    disp->DriverData = (void *) dri2_dpy;
 
-   const int limit = 64;
-   const int base = 128;
-   for (i = 0; i < limit; ++i) {
-      char *card_path;
-      if (asprintf(&card_path, DRM_RENDER_DEV_NAME, DRM_DIR_NAME, base + i) < 0)
-         continue;
-
-      dri2_dpy->fd = loader_open_device(card_path);
-
-      free(card_path);
-      if (dri2_dpy->fd < 0)
-         continue;
-
-      dri2_dpy->driver_name = loader_get_driver_for_fd(dri2_dpy->fd);
-      if (dri2_dpy->driver_name) {
-         if (dri2_load_driver(disp)) {
-            driver_loaded = 1;
-            break;
-         }
-         free(dri2_dpy->driver_name);
-         dri2_dpy->driver_name = NULL;
-      }
-      close(dri2_dpy->fd);
-      dri2_dpy->fd = -1;
+   if (!disp->Options.ForceSoftware) {
+      driver_loaded = surfaceless_probe_device(disp, false);
+      if (!driver_loaded)
+         _eglLog(_EGL_WARNING,
+                 "No hardware driver found, falling back to software rendering");
    }
 
+   if (!driver_loaded)
+      driver_loaded = surfaceless_probe_device(disp, true);
+
    if (!driver_loaded) {
-      err = "DRI2: failed to load driver";
-      goto cleanup;
+      _eglLog(_EGL_DEBUG, "Falling back to surfaceless swrast without DRM.");
+      if (!surfaceless_probe_device_sw(disp)) {
+         err = "DRI2: failed to load driver";
+         goto cleanup;
+      }
    }
 
-   dri2_dpy->loader_extensions = image_loader_extensions;
-
    if (!dri2_create_screen(disp)) {
       err = "DRI2: failed to create screen";
       goto cleanup;
@@ -326,8 +363,12 @@ dri2_initialize_surfaceless(_EGLDriver *drv, _EGLDisplay *disp)
    }
 
    dri2_setup_screen(disp);
+#ifdef HAVE_WAYLAND_PLATFORM
+   dri2_dpy->device_name = loader_get_device_name_for_fd(dri2_dpy->fd);
+#endif
+   dri2_set_WL_bind_wayland_display(drv, disp);
 
-   if (!surfaceless_add_configs_for_visuals(drv, disp)) {
+   if (!dri2_add_pbuffer_configs_for_visuals(drv, disp)) {
       err = "DRI2: failed to add configs";
       goto cleanup;
    }