renderer/native: Move out CoglOnscreen code to separate file

To get meta-renderer-native.c down to a bit more managable size, and to
isolate "onscreen" functionality from other (at least partly), move out
the things related to CoglOnscreen to meta-onscreen-native.[ch].

A couple of structs are moved to a new shared header file, as
abstracting those types (e.g. (primary, secondary) render devices) will
be dealt with later.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1514>

src/backends/native/meta-backend-native-types.h

@@ -25,5 +25,7 @@ typedef struct _MetaBackendNative MetaBackendNative;
 typedef struct _MetaSeatNative MetaSeatNative;
 typedef struct _MetaSeatImpl MetaSeatImpl;
 typedef struct _MetaKeymapNative MetaKeymapNative;
+typedef struct _MetaRendererNative MetaRendererNative;
+typedef struct _MetaGpuKms MetaGpuKms;
 
 #endif /* META_BACKEND_NATIVE_TYPES_H */

src/backends/native/meta-onscreen-native.h

@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2016-2020 Red Hat
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ *
+ */
+
+#ifndef META_ONSCREEN_NATIVE_H
+#define META_ONSCREEN_NATIVE_H
+
+#include <glib.h>
+
+#include "backends/meta-backend-types.h"
+#include "backends/native/meta-backend-native-types.h"
+#include "clutter/clutter.h"
+#include "cogl/cogl.h"
+
+gboolean
+meta_renderer_native_init_onscreen (CoglOnscreen *onscreen,
+                                    GError      **error);
+
+void meta_renderer_native_release_onscreen (CoglOnscreen *onscreen);
+
+gboolean meta_onscreen_native_allocate (CoglOnscreen *onscreen,
+                                        GError      **error);
+
+void meta_onscreen_native_swap_buffers_with_damage (CoglOnscreen  *onscreen,
+                                                    const int     *rectangles,
+                                                    int            n_rectangles,
+                                                    CoglFrameInfo *frame_info,
+                                                    gpointer       user_data);
+
+gboolean meta_onscreen_native_direct_scanout (CoglOnscreen   *onscreen,
+                                              CoglScanout    *scanout,
+                                              CoglFrameInfo  *frame_info,
+                                              gpointer        user_data,
+                                              GError        **error);
+
+void meta_onscreen_native_finish_frame (CoglOnscreen *onscreen,
+                                        ClutterFrame *frame);
+
+void meta_onscreen_native_dummy_power_save_page_flip (CoglOnscreen *onscreen);
+
+void meta_onscreen_native_set_view (CoglOnscreen     *onscreen,
+                                    MetaRendererView *view);
+
+CoglOnscreen * meta_onscreen_native_new (MetaRendererNative  *renderer_native,
+                                         MetaGpuKms          *render_gpu,
+                                         MetaOutput          *output,
+                                         MetaCrtc            *crtc,
+                                         CoglContext         *cogl_context,
+                                         int                  width,
+                                         int                  height,
+                                         GError             **error);
+
+#endif /* META_ONSCREEN_NATIVE_H */

src/backends/native/meta-renderer-native-private.h

@@ -0,0 +1,113 @@
+/*
+ * Copyright (C) 2011 Intel Corporation.
+ * Copyright (C) 2016-2020 Red Hat
+ * Copyright (c) 2018,2019 DisplayLink (UK) Ltd.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ */
+
+#ifndef META_RENDERER_NATIVE_PRIVATE_H
+#define META_RENDERER_NATIVE_PRIVATE_H
+
+#include "backends/meta-gles3.h"
+#include "backends/native/meta-renderer-native.h"
+
+typedef enum _MetaSharedFramebufferCopyMode
+{
+  /* Zero-copy: primary GPU exports, secondary GPU imports as KMS FB */
+  META_SHARED_FRAMEBUFFER_COPY_MODE_ZERO,
+  /* the secondary GPU will make the copy */
+  META_SHARED_FRAMEBUFFER_COPY_MODE_SECONDARY_GPU,
+  /*
+   * The copy is made in the primary GPU rendering context, either
+   * as a CPU copy through Cogl read-pixels or as primary GPU copy
+   * using glBlitFramebuffer.
+   */
+  META_SHARED_FRAMEBUFFER_COPY_MODE_PRIMARY
+} MetaSharedFramebufferCopyMode;
+
+typedef struct _MetaRendererNativeGpuData
+{
+  MetaRendererNative *renderer_native;
+
+  struct {
+    struct gbm_device *device;
+  } gbm;
+
+#ifdef HAVE_EGL_DEVICE
+  struct {
+    EGLDeviceEXT device;
+  } egl;
+#endif
+
+  MetaRendererNativeMode mode;
+
+  EGLDisplay egl_display;
+
+  /*
+   * Fields used for blitting iGPU framebuffer content onto dGPU framebuffers.
+   */
+  struct {
+    MetaSharedFramebufferCopyMode copy_mode;
+    gboolean is_hardware_rendering;
+    gboolean has_EGL_EXT_image_dma_buf_import_modifiers;
+
+    /* For GPU blit mode */
+    EGLContext egl_context;
+    EGLConfig egl_config;
+  } secondary;
+} MetaRendererNativeGpuData;
+
+MetaEgl * meta_renderer_native_get_egl (MetaRendererNative *renderer_native);
+
+MetaGles3 * meta_renderer_native_get_gles3 (MetaRendererNative *renderer_native);
+
+MetaRendererNativeGpuData * meta_renderer_native_get_gpu_data (MetaRendererNative *renderer_native,
+                                                               MetaGpuKms         *gpu_kms);
+
+gboolean meta_renderer_native_has_pending_mode_sets (MetaRendererNative *renderer_native);
+
+gboolean meta_renderer_native_has_pending_mode_set (MetaRendererNative *renderer_native);
+
+void meta_renderer_native_notify_mode_sets_reset (MetaRendererNative *renderer_native);
+
+void meta_renderer_native_post_mode_set_updates (MetaRendererNative *renderer_native);
+
+void meta_renderer_native_queue_power_save_page_flip (MetaRendererNative *renderer_native,
+                                                      CoglOnscreen       *onscreen);
+
+CoglFramebuffer * meta_renderer_native_create_dma_buf_framebuffer (MetaRendererNative  *renderer_native,
+                                                                   int                  dmabuf_fd,
+                                                                   uint32_t             width,
+                                                                   uint32_t             height,
+                                                                   uint32_t             stride,
+                                                                   uint32_t             offset,
+                                                                   uint64_t             modifier,
+                                                                   uint32_t             drm_format,
+                                                                   GError             **error);
+
+gboolean meta_renderer_native_pop_pending_mode_set (MetaRendererNative *renderer_native,
+                                                    MetaRendererView   *view);
+
+const CoglWinsysVtable * meta_get_renderer_native_parent_vtable (void);
+
+#endif /* META_RENDERER_NATIVE_PRIVATE_H */

src/meson.build

@@ -669,7 +669,6 @@ if have_native_backend
     'backends/native/meta-monitor-manager-kms.h',
     'backends/native/meta-output-kms.c',
     'backends/native/meta-output-kms.h',
-    'backends/native/meta-renderer-native.c',
     'backends/native/meta-kms-connector-private.h',
     'backends/native/meta-kms-connector.c',
     'backends/native/meta-kms-connector.h',
@@ -703,10 +702,14 @@ if have_native_backend
     'backends/native/meta-kms-utils.h',
     'backends/native/meta-kms.c',
     'backends/native/meta-kms.h',
+    'backends/native/meta-onscreen-native.c',
+    'backends/native/meta-onscreen-native.h',
     'backends/native/meta-pointer-constraint-native.c',
     'backends/native/meta-pointer-constraint-native.h',
     'backends/native/meta-renderer-native-gles3.c',
     'backends/native/meta-renderer-native-gles3.h',
+    'backends/native/meta-renderer-native-private.h',
+    'backends/native/meta-renderer-native.c',
     'backends/native/meta-renderer-native.h',
     'backends/native/meta-seat-impl.c',
     'backends/native/meta-seat-impl.h',