X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fegl%2Fdrivers%2Fdri2%2Fplatform_surfaceless.c;h=dd283673a8374a506cfee80871916ffe8190fa7e;hb=6b4c474ed7d217ae27edc6f9e30feba651ef6a53;hp=c81eacafdac684487a6f60d7661ebd73d41dde7e;hpb=af7abc512c422183a761ce3d687086abe282fa74;p=mesa.git

diff --git a/src/egl/drivers/dri2/platform_surfaceless.c b/src/egl/drivers/dri2/platform_surfaceless.c
index c81eacafdac..dd283673a83 100644
--- a/src/egl/drivers/dri2/platform_surfaceless.c
+++ b/src/egl/drivers/dri2/platform_surfaceless.c
@@ -34,7 +34,6 @@
 #include <unistd.h>
 
 #include "egl_dri2.h"
-#include "egl_dri2_fallbacks.h"
 #include "loader.h"
 
 static __DRIimage*
@@ -60,6 +59,9 @@ 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
@@ -106,8 +108,8 @@ surfaceless_image_get_buffers(__DRIdrawable *driDrawable,
 }
 
 static _EGLSurface *
-dri2_surfaceless_create_surface(_EGLDriver *drv, _EGLDisplay *disp, EGLint type,
-                        _EGLConfig *conf, const EGLint *attrib_list)
+dri2_surfaceless_create_surface(_EGLDisplay *disp, EGLint type,
+                                _EGLConfig *conf, const EGLint *attrib_list)
 {
    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
    struct dri2_egl_config *dri2_conf = dri2_egl_config(conf);
@@ -124,29 +126,24 @@ 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;
 
@@ -156,80 +153,32 @@ dri2_surfaceless_create_surface(_EGLDriver *drv, _EGLDisplay *disp, EGLint type,
 }
 
 static EGLBoolean
-surfaceless_destroy_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf)
+surfaceless_destroy_surface(_EGLDisplay *disp, _EGLSurface *surf)
 {
    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
    struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
 
    surfaceless_free_images(dri2_surf);
 
-   (*dri2_dpy->core->destroyDrawable)(dri2_surf->dri_drawable);
+   dri2_dpy->core->destroyDrawable(dri2_surf->dri_drawable);
 
+   dri2_fini_surface(surf);
    free(dri2_surf);
    return EGL_TRUE;
 }
 
 static _EGLSurface *
-dri2_surfaceless_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *disp,
-                                _EGLConfig *conf, const EGLint *attrib_list)
+dri2_surfaceless_create_pbuffer_surface(_EGLDisplay *disp, _EGLConfig *conf,
+                                        const EGLint *attrib_list)
 {
-   return dri2_surfaceless_create_surface(drv, disp, EGL_PBUFFER_BIT, conf,
+   return dri2_surfaceless_create_surface(disp, EGL_PBUFFER_BIT, conf,
                                   attrib_list);
 }
 
-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 struct dri2_egl_display_vtbl dri2_surfaceless_display_vtbl = {
-   .create_pixmap_surface = dri2_fallback_create_pixmap_surface,
+static const struct dri2_egl_display_vtbl dri2_surfaceless_display_vtbl = {
    .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_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,
-   .query_buffer_age = dri2_fallback_query_buffer_age,
-   .create_wayland_buffer_from_image = dri2_fallback_create_wayland_buffer_from_image,
-   .get_sync_values = dri2_fallback_get_sync_values,
    .get_dri_drawable = dri2_surface_get_dri_drawable,
 };
 
@@ -238,14 +187,25 @@ 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,
@@ -253,64 +213,157 @@ static const __DRIextension *image_loader_extensions[] = {
    NULL,
 };
 
-EGLBoolean
-dri2_initialize_surfaceless(_EGLDriver *drv, _EGLDisplay *disp)
-{
-   struct dri2_egl_display *dri2_dpy;
-   const char* err;
-   int i;
-   int driver_loaded = 0;
+static const __DRIextension *swrast_loader_extensions[] = {
+   &swrast_pbuffer_loader_extension.base,
+   &image_loader_extension.base,
+   &image_lookup_extension.base,
+   &use_invalidate.base,
+   NULL,
+};
 
-   loader_set_logger(_eglLog);
+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 = dri2_egl_display(disp);
+   drmDevicePtr device, devices[MAX_DRM_DEVICES] = { NULL };
+   int i, num_devices;
 
-   dri2_dpy = calloc(1, sizeof *dri2_dpy);
-   if (!dri2_dpy)
-      return _eglError(EGL_BAD_ALLOC, "eglInitialize");
+   num_devices = drmGetDevices2(0, devices, ARRAY_SIZE(devices));
+   if (num_devices < 0)
+      return false;
 
-   disp->DriverData = (void *) dri2_dpy;
+   for (i = 0; i < num_devices; ++i) {
+      device = devices[i];
 
-   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)
+      if (!(device->available_nodes & (1 << node_type)))
          continue;
 
-      dri2_dpy->fd = loader_open_device(card_path);
-
-      free(card_path);
+      dri2_dpy->fd = loader_open_device(device->nodes[node_type]);
       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);
+      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 (!driver_loaded) {
-      err = "DRI2: failed to load driver";
-      goto cleanup_display;
+   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 = dri2_egl_display(disp);
+
+   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 = image_loader_extensions;
+   dri2_dpy->loader_extensions = swrast_loader_extensions;
+   return true;
+}
+
+EGLBoolean
+dri2_initialize_surfaceless(_EGLDisplay *disp)
+{
+   struct dri2_egl_display *dri2_dpy;
+   const char* err;
+   bool driver_loaded = false;
+
+   dri2_dpy = calloc(1, sizeof *dri2_dpy);
+   if (!dri2_dpy)
+      return _eglError(EGL_BAD_ALLOC, "eglInitialize");
+
+   dri2_dpy->fd = -1;
+   disp->DriverData = (void *) dri2_dpy;
+
+   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) {
+      _eglLog(_EGL_DEBUG, "Falling back to surfaceless swrast without DRM.");
+      if (!surfaceless_probe_device_sw(disp)) {
+         err = "DRI2: failed to load driver";
+         goto cleanup;
+      }
+   }
 
    if (!dri2_create_screen(disp)) {
       err = "DRI2: failed to create screen";
-      goto cleanup_driver;
+      goto cleanup;
    }
 
-   if (!surfaceless_add_configs_for_visuals(drv, disp)) {
-      err = "DRI2: failed to add configs";
-      goto cleanup_screen;
+   if (!dri2_setup_extensions(disp)) {
+      err = "DRI2: failed to find required DRI extensions";
+      goto cleanup;
    }
 
-   disp->Extensions.KHR_image_base = EGL_TRUE;
+   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(disp);
+
+   if (!dri2_add_pbuffer_configs_for_visuals(disp)) {
+      err = "DRI2: failed to add configs";
+      goto cleanup;
+   }
 
    /* Fill vtbl last to prevent accidentally calling virtual function during
     * initialization.
@@ -319,16 +372,7 @@ dri2_initialize_surfaceless(_EGLDriver *drv, _EGLDisplay *disp)
 
    return EGL_TRUE;
 
-cleanup_screen:
-   dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
-
-cleanup_driver:
-   dlclose(dri2_dpy->driver);
-   free(dri2_dpy->driver_name);
-   close(dri2_dpy->fd);
-cleanup_display:
-   free(dri2_dpy);
-   disp->DriverData = NULL;
-
+cleanup:
+   dri2_display_destroy(disp);
    return _eglError(EGL_NOT_INITIALIZED, err);
 }