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/*
* Copyright (C) 2016 Red Hat Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "backends/meta-renderer-view.h"
#include "backends/meta-renderer.h"
#include "clutter/clutter-mutter.h"
enum
{
PROP_0,
PROP_MONITOR_INFO,
PROP_TRANSFORM,
PROP_LAST
};
static GParamSpec *obj_props[PROP_LAST];
struct _MetaRendererView
{
ClutterStageViewCogl parent;
MetaMonitorTransform transform;
MetaLogicalMonitor *logical_monitor;
};
G_DEFINE_TYPE (MetaRendererView, meta_renderer_view,
CLUTTER_TYPE_STAGE_VIEW_COGL)
MetaLogicalMonitor *
meta_renderer_view_get_logical_monitor (MetaRendererView *view)
{
return view->logical_monitor;
}
MetaMonitorTransform
meta_renderer_view_get_transform (MetaRendererView *view)
{
return view->transform;
}
static void
meta_renderer_view_get_offscreen_transformation_matrix (ClutterStageView *view,
CoglMatrix *matrix)
{
MetaRendererView *renderer_view = META_RENDERER_VIEW (view);
cogl_matrix_init_identity (matrix);
switch (renderer_view->transform)
{
case META_MONITOR_TRANSFORM_NORMAL:
break;
case META_MONITOR_TRANSFORM_90:
cogl_matrix_rotate (matrix, 90, 0, 0, 1);
cogl_matrix_translate (matrix, 0, -1, 0);
break;
case META_MONITOR_TRANSFORM_180:
cogl_matrix_rotate (matrix, 180, 0, 0, 1);
cogl_matrix_translate (matrix, -1, -1, 0);
break;
case META_MONITOR_TRANSFORM_270:
cogl_matrix_rotate (matrix, 270, 0, 0, 1);
cogl_matrix_translate (matrix, -1, 0, 0);
break;
case META_MONITOR_TRANSFORM_FLIPPED:
cogl_matrix_scale (matrix, -1, 1, 1);
cogl_matrix_translate (matrix, -1, 0, 0);
break;
case META_MONITOR_TRANSFORM_FLIPPED_90:
cogl_matrix_scale (matrix, -1, 1, 1);
cogl_matrix_rotate (matrix, 90, 0, 0, 1);
break;
case META_MONITOR_TRANSFORM_FLIPPED_180:
cogl_matrix_scale (matrix, -1, 1, 1);
cogl_matrix_rotate (matrix, 180, 0, 0, 1);
cogl_matrix_translate (matrix, 0, -1, 0);
break;
case META_MONITOR_TRANSFORM_FLIPPED_270:
cogl_matrix_scale (matrix, -1, 1, 1);
cogl_matrix_rotate (matrix, 270, 0, 0, 1);
cogl_matrix_translate (matrix, -1, -1, 0);
break;
}
}
static void
meta_renderer_view_setup_offscreen_blit_pipeline (ClutterStageView *view,
CoglPipeline *pipeline)
{
CoglMatrix matrix;
meta_renderer_view_get_offscreen_transformation_matrix (view, &matrix);
cogl_pipeline_set_layer_matrix (pipeline, 0, &matrix);
}
static void
meta_renderer_view_set_transform (MetaRendererView *view,
MetaMonitorTransform transform)
{
if (view->transform == transform)
return;
view->transform = transform;
clutter_stage_view_invalidate_offscreen_blit_pipeline (CLUTTER_STAGE_VIEW (view));
}
static void
meta_renderer_view_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
MetaRendererView *view = META_RENDERER_VIEW (object);
switch (prop_id)
{
case PROP_MONITOR_INFO:
g_value_set_pointer (value, view->logical_monitor);
break;
case PROP_TRANSFORM:
g_value_set_uint (value, view->transform);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
meta_renderer_view_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
MetaRendererView *view = META_RENDERER_VIEW (object);
switch (prop_id)
{
case PROP_MONITOR_INFO:
view->logical_monitor = g_value_get_pointer (value);
break;
case PROP_TRANSFORM:
meta_renderer_view_set_transform (view, g_value_get_uint (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
meta_renderer_view_init (MetaRendererView *view)
{
}
static void
meta_renderer_view_class_init (MetaRendererViewClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
ClutterStageViewClass *view_class = CLUTTER_STAGE_VIEW_CLASS (klass);
view_class->setup_offscreen_blit_pipeline =
meta_renderer_view_setup_offscreen_blit_pipeline;
view_class->get_offscreen_transformation_matrix =
meta_renderer_view_get_offscreen_transformation_matrix;
object_class->get_property = meta_renderer_view_get_property;
object_class->set_property = meta_renderer_view_set_property;
obj_props[PROP_MONITOR_INFO] =
g_param_spec_pointer ("logical-monitor",
"MetaLogicalMonitor",
"The logical monitor of the view",
G_PARAM_READWRITE |
G_PARAM_STATIC_STRINGS |
G_PARAM_CONSTRUCT_ONLY);
obj_props[PROP_TRANSFORM] =
g_param_spec_uint ("transform",
"Transform",
"Transform to apply to the view",
META_MONITOR_TRANSFORM_NORMAL,
META_MONITOR_TRANSFORM_FLIPPED_270,
META_MONITOR_TRANSFORM_NORMAL,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS);
g_object_class_install_properties (object_class, PROP_LAST, obj_props);
}
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