YaGL: Add pbuffer support for Wayland platformsubmit/tizen/20160310.060703accepted/tizen/wearable/20160311.054545accepted/tizen/tv/20160311.054532accepted/tizen/mobile/20160311.054508accepted/tizen/ivi/20160311.054606

Currently it is needed to make Tizen 3.0 feature tests pass
in emulator. They appear to be using eglCreatePbufferSurface(...)
for offscreen rendering. I am not sure if such functionality is
really needed with Wayland (in fact it is not supported even in
Mesa). Anyway I have not found any spec saying that Wayland should
fail with this call so for the moment some draft implementation
should be okay I think.

Change-Id: I01372121c0e080e0007c69a12d4b97ad8df6fc04
Signed-off-by: Vasiliy Ulyanov <v.ulyanov@samsung.com>

4 files changed, 253 insertions, 1 deletions

diff --git a/EGL/CMakeLists.txt b/EGL/CMakeLists.txt
index 4f5d75e..d42af56 100644
--- a/EGL/CMakeLists.txt
+++ b/EGL/CMakeLists.txt
@@ -89,6 +89,7 @@ if (PLATFORM_WAYLAND)
         wayland/yagl_wayland_platform.c
         wayland/yagl_wayland_display.c
         wayland/yagl_wayland_window.c
+        wayland/yagl_wayland_pbuffer.c
         yagl_onscreen_image_wl_buffer.c
     )
     set(LIBRARIES ${LIBRARIES}
diff --git a/EGL/wayland/yagl_wayland_display.c b/EGL/wayland/yagl_wayland_display.c
index a617e73..a3f662d 100644
--- a/EGL/wayland/yagl_wayland_display.c
+++ b/EGL/wayland/yagl_wayland_display.c
@@ -33,6 +33,7 @@
 
 #include "yagl_wayland_display.h"
 #include "yagl_wayland_window.h"
+#include "yagl_wayland_pbuffer.h"
 #include "yagl_log.h"
 #include "yagl_malloc.h"
 #include "wayland-drm-client-protocol.h"
@@ -251,7 +252,11 @@ static struct yagl_native_drawable
                                         uint32_t height,
                                         uint32_t depth)
 {
-    return NULL;
+    /*
+     * Wayland actaully has no pixmap type. This is just for creating
+     * a pbuffer and to make Tizen conformance tests happy.
+     */
+    return yagl_wayland_pbuffer_create(dpy, width, height, depth);
 }
 
 static struct yagl_native_image
diff --git a/EGL/wayland/yagl_wayland_pbuffer.c b/EGL/wayland/yagl_wayland_pbuffer.c
new file mode 100644
index 0000000..7b230ff
--- /dev/null
+++ b/EGL/wayland/yagl_wayland_pbuffer.c
@@ -0,0 +1,197 @@
+/*
+ * YaGL
+ *
+ * Copyright (c) 2016 Samsung Electronics Co., Ltd. All rights reserved.
+ *
+ * Contact :
+ * Vasiliy Ulyanov <v.ulyanov@samsung.com>
+ * Jinhyung Jo <jinhyung.jo@samsung.com>
+ * Sangho Park <sangho1206.park@samsung.com>
+ *
+ * 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.
+ *
+ * Contributors:
+ * - S-Core Co., Ltd
+ *
+ */
+
+#include "yagl_wayland_pbuffer.h"
+#include "yagl_native_display.h"
+#include "yagl_native_drawable.h"
+#include "yagl_log.h"
+#include "yagl_malloc.h"
+#include "yagl_gbm.h"
+#include "vigs.h"
+#include <assert.h>
+#include <string.h>
+
+#define YAGL_WAYLAND_PBUFFER(os_pbuffer) ((struct vigs_drm_surface *)(os_pbuffer))
+
+static int yagl_wayland_pbuffer_get_buffer(struct yagl_native_drawable *drawable,
+                                           yagl_native_attachment attachment,
+                                           uint32_t *buffer_name,
+                                           struct vigs_drm_surface **buffer_sfc)
+{
+    struct vigs_drm_surface *drm_sfc = YAGL_WAYLAND_PBUFFER(drawable->os_drawable);
+
+    YAGL_LOG_FUNC_SET(yagl_wayland_pbuffer_get_buffer);
+
+    switch (attachment) {
+    case yagl_native_attachment_front:
+        break;
+    case yagl_native_attachment_back:
+    default:
+        YAGL_LOG_ERROR("Bad attachment %u", attachment);
+        return 0;
+    }
+
+    vigs_drm_gem_ref(&drm_sfc->gem);
+
+    *buffer_sfc = drm_sfc;
+
+    return 1;
+}
+
+static int yagl_wayland_pbuffer_get_buffer_age(struct yagl_native_drawable *drawable)
+{
+    return 0;
+}
+
+static void yagl_wayland_pbuffer_swap_buffers(struct yagl_native_drawable *drawable)
+{
+}
+
+static void yagl_wayland_pbuffer_wait(struct yagl_native_drawable *drawable,
+                                      uint32_t width,
+                                      uint32_t height)
+{
+}
+
+static void yagl_wayland_pbuffer_copy_to_pixmap(struct yagl_native_drawable *drawable,
+                                                yagl_os_pixmap os_pixmap,
+                                                uint32_t from_x,
+                                                uint32_t from_y,
+                                                uint32_t to_x,
+                                                uint32_t to_y,
+                                                uint32_t width,
+                                                uint32_t height)
+{
+}
+
+static void yagl_wayland_pbuffer_set_swap_interval(struct yagl_native_drawable *drawable,
+                                                   int interval)
+{
+}
+
+static void yagl_wayland_pbuffer_get_geometry(struct yagl_native_drawable *drawable,
+                                              uint32_t *width,
+                                              uint32_t *height,
+                                              uint32_t *depth)
+{
+    struct vigs_drm_surface *drm_sfc = YAGL_WAYLAND_PBUFFER(drawable->os_drawable);
+
+    *width = drm_sfc->width;
+    *height = drm_sfc->height;
+
+    switch (drm_sfc->format) {
+    case vigs_drm_surface_bgrx8888:
+        *depth = 24;
+        break;
+    case vigs_drm_surface_bgra8888:
+        *depth = 32;
+        break;
+    default: /* should never happen */
+        assert(NULL);
+        break;
+    }
+}
+
+static struct yagl_native_image
+    *yagl_wayland_pbuffer_get_image(struct yagl_native_drawable *drawable,
+                                    uint32_t width,
+                                    uint32_t height)
+{
+    return NULL;
+}
+
+static void yagl_wayland_pbuffer_destroy(struct yagl_native_drawable *drawable)
+{
+    struct vigs_drm_surface *drm_sfc = YAGL_WAYLAND_PBUFFER(drawable->os_drawable);
+
+    vigs_drm_gem_unref(&drm_sfc->gem);
+
+    yagl_native_drawable_cleanup(drawable);
+
+    yagl_free(drawable);
+}
+
+struct yagl_native_drawable
+    *yagl_wayland_pbuffer_create(struct yagl_native_display *dpy,
+                                 uint32_t width,
+                                 uint32_t height,
+                                 uint32_t depth)
+{
+    vigs_drm_surface_format format;
+    struct vigs_drm_surface *drm_sfc;
+    struct yagl_native_drawable *pbuffer;
+    int ret;
+
+    YAGL_LOG_FUNC_SET(yagl_wayland_pbuffer_create);
+
+    switch (depth) {
+    case 24:
+        format = vigs_drm_surface_bgrx8888;
+        break;
+    case 32:
+        format = vigs_drm_surface_bgra8888;
+        break;
+    default:
+        YAGL_LOG_ERROR("Bad depth value: %u", depth);
+        return NULL;
+    }
+
+    ret = vigs_drm_surface_create(dpy->drm_dev,
+                                  width,
+                                  height,
+                                  width * 4, /* stride */
+                                  format,
+                                  0, /* scanout */
+                                  &drm_sfc);
+
+    if (ret) {
+        YAGL_LOG_ERROR("vigs_drm_surface_create failed: %s", strerror(-ret));
+        return NULL;
+    }
+
+    pbuffer = yagl_malloc0(sizeof(*pbuffer));
+
+    yagl_native_drawable_init(pbuffer, dpy, (yagl_os_drawable)drm_sfc);
+
+    pbuffer->get_buffer = &yagl_wayland_pbuffer_get_buffer;
+    pbuffer->get_buffer_age = &yagl_wayland_pbuffer_get_buffer_age;
+    pbuffer->swap_buffers = &yagl_wayland_pbuffer_swap_buffers;
+    pbuffer->wait = &yagl_wayland_pbuffer_wait;
+    pbuffer->copy_to_pixmap = &yagl_wayland_pbuffer_copy_to_pixmap;
+    pbuffer->set_swap_interval = &yagl_wayland_pbuffer_set_swap_interval;
+    pbuffer->get_geometry = &yagl_wayland_pbuffer_get_geometry;
+    pbuffer->get_image = &yagl_wayland_pbuffer_get_image;
+    pbuffer->destroy = &yagl_wayland_pbuffer_destroy;
+
+    return pbuffer;
+}
diff --git a/EGL/wayland/yagl_wayland_pbuffer.h b/EGL/wayland/yagl_wayland_pbuffer.h
new file mode 100644
index 0000000..a27a356
--- /dev/null
+++ b/EGL/wayland/yagl_wayland_pbuffer.h
@@ -0,0 +1,49 @@
+/*
+ * YaGL
+ *
+ * Copyright (c) 2016 Samsung Electronics Co., Ltd. All rights reserved.
+ *
+ * Contact :
+ * Vasiliy Ulyanov <v.ulyanov@samsung.com>
+ * Jinhyung Jo <jinhyung.jo@samsung.com>
+ * Sangho Park <sangho1206.park@samsung.com>
+ *
+ * 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.
+ *
+ * Contributors:
+ * - S-Core Co., Ltd
+ *
+ */
+
+#ifndef _YAGL_WAYLAND_PBUFFER_H_
+#define _YAGL_WAYLAND_PBUFFER_H_
+
+#include "yagl_export.h"
+#include "yagl_native_types.h"
+
+struct yagl_native_display;
+struct yagl_native_drawable;
+
+struct yagl_native_drawable
+    *yagl_wayland_pbuffer_create(struct yagl_native_display *dpy,
+                                 uint32_t width,
+                                 uint32_t height,
+                                 uint32_t depth);
+
+#endif /* _YAGL_WAYLAND_PBUFFER_H_ */