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backends: Add a native cursor renderer

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This commit is contained in:
Jasper St. Pierre
2014-04-22 15:15:11 -04:00
parent a1ba480c8a
commit dd440e64da
10 changed files with 325 additions and 161 deletions
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180
src/backends/meta-cursor-renderer.c
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@@ -30,151 +30,22 @@
#include <cogl/cogl.h>
#include <cogl/cogl-wayland-server.h>
#include <clutter/clutter.h>
#include <gbm.h>
#include "meta-monitor-manager.h"
#include "meta-stage.h"
#include "wayland/meta-wayland-private.h"
struct _MetaCursorRendererPrivate
{
gboolean has_hw_cursor;
int current_x, current_y;
MetaRectangle current_rect;
int drm_fd;
struct gbm_device *gbm;
MetaCursorReference *displayed_cursor;
};
typedef struct _MetaCursorRendererPrivate MetaCursorRendererPrivate;
G_DEFINE_TYPE_WITH_PRIVATE (MetaCursorRenderer, meta_cursor_renderer, G_TYPE_OBJECT);
static void
set_crtc_cursor (MetaCursorRenderer *renderer,
MetaCRTC *crtc,
MetaCursorReference *cursor,
gboolean force)
{
MetaCursorRendererPrivate *priv = meta_cursor_renderer_get_instance_private (renderer);
if (crtc->cursor == cursor && !force)
return;
crtc->cursor = cursor;
if (cursor)
{
struct gbm_bo *bo;
union gbm_bo_handle handle;
int width, height;
int hot_x, hot_y;
bo = meta_cursor_reference_get_gbm_bo (cursor, &hot_x, &hot_y);
handle = gbm_bo_get_handle (bo);
width = gbm_bo_get_width (bo);
height = gbm_bo_get_height (bo);
drmModeSetCursor2 (priv->drm_fd, crtc->crtc_id, handle.u32,
width, height, hot_x, hot_y);
}
else
{
drmModeSetCursor2 (priv->drm_fd, crtc->crtc_id, 0, 0, 0, 0, 0);
}
}
static void
update_hw_cursor (MetaCursorRenderer *renderer,
gboolean force)
{
MetaCursorRendererPrivate *priv = meta_cursor_renderer_get_instance_private (renderer);
MetaRectangle *cursor_rect = &priv->current_rect;
MetaMonitorManager *monitors;
MetaCRTC *crtcs;
unsigned int i, n_crtcs;
monitors = meta_monitor_manager_get ();
meta_monitor_manager_get_resources (monitors, NULL, NULL, &crtcs, &n_crtcs, NULL, NULL);
for (i = 0; i < n_crtcs; i++)
{
gboolean crtc_should_have_cursor;
MetaCursorReference *cursor;
MetaRectangle *crtc_rect;
crtc_rect = &crtcs[i].rect;
crtc_should_have_cursor = (priv->has_hw_cursor && meta_rectangle_overlap (cursor_rect, crtc_rect));
if (crtc_should_have_cursor)
cursor = priv->displayed_cursor;
else
cursor = NULL;
set_crtc_cursor (renderer, &crtcs[i], cursor, force);
if (cursor)
{
drmModeMoveCursor (priv->drm_fd, crtcs[i].crtc_id,
cursor_rect->x - crtc_rect->x,
cursor_rect->y - crtc_rect->y);
}
}
}
static void
on_monitors_changed (MetaMonitorManager *monitors,
MetaCursorRenderer *renderer)
{
/* Our tracking is all messed up, so force an update. */
update_hw_cursor (renderer, TRUE);
}
static void
meta_cursor_renderer_finalize (GObject *object)
{
MetaCursorRenderer *renderer = META_CURSOR_RENDERER (object);
MetaCursorRendererPrivate *priv = meta_cursor_renderer_get_instance_private (renderer);
if (priv->gbm)
gbm_device_destroy (priv->gbm);
G_OBJECT_CLASS (meta_cursor_renderer_parent_class)->finalize (object);
}
static void
meta_cursor_renderer_class_init (MetaCursorRendererClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->finalize = meta_cursor_renderer_finalize;
}
static void
meta_cursor_renderer_init (MetaCursorRenderer *renderer)
{
MetaCursorRendererPrivate *priv = meta_cursor_renderer_get_instance_private (renderer);
CoglContext *ctx = clutter_backend_get_cogl_context (clutter_get_default_backend ());
MetaMonitorManager *monitors;
monitors = meta_monitor_manager_get ();
g_signal_connect_object (monitors, "monitors-changed",
G_CALLBACK (on_monitors_changed), renderer, 0);
#if defined(CLUTTER_WINDOWING_EGL)
if (clutter_check_windowing_backend (CLUTTER_WINDOWING_EGL))
{
CoglRenderer *cogl_renderer = cogl_display_get_renderer (cogl_context_get_display (ctx));
priv->drm_fd = cogl_kms_renderer_get_kms_fd (cogl_renderer);
priv->gbm = gbm_create_device (priv->drm_fd);
}
#endif
}
static void
queue_redraw (MetaCursorRenderer *renderer)
{
@@ -197,15 +68,21 @@ queue_redraw (MetaCursorRenderer *renderer)
&priv->current_rect);
}
static gboolean
should_have_hw_cursor (MetaCursorRenderer *renderer)
static void
meta_cursor_renderer_real_update_cursor (MetaCursorRenderer *renderer)
{
MetaCursorRendererPrivate *priv = meta_cursor_renderer_get_instance_private (renderer);
queue_redraw (renderer);
}
if (priv->displayed_cursor)
return (meta_cursor_reference_get_gbm_bo (priv->displayed_cursor, NULL, NULL) != NULL);
else
return FALSE;
static void
meta_cursor_renderer_class_init (MetaCursorRendererClass *klass)
{
klass->update_cursor = meta_cursor_renderer_real_update_cursor;
}
static void
meta_cursor_renderer_init (MetaCursorRenderer *renderer)
{
}
static void
@@ -233,14 +110,7 @@ update_cursor (MetaCursorRenderer *renderer)
priv->current_rect.height = 0;
}
if (meta_is_wayland_compositor ())
{
priv->has_hw_cursor = should_have_hw_cursor (renderer);
update_hw_cursor (renderer, FALSE);
if (!priv->has_hw_cursor)
queue_redraw (renderer);
}
META_CURSOR_RENDERER_GET_CLASS (renderer)->update_cursor (renderer);
}
MetaCursorRenderer *
@@ -276,18 +146,18 @@ meta_cursor_renderer_set_position (MetaCursorRenderer *renderer,
update_cursor (renderer);
}
void
meta_cursor_renderer_force_update (MetaCursorRenderer *renderer)
{
g_assert (meta_is_wayland_compositor ());
update_hw_cursor (renderer, TRUE);
}
struct gbm_device *
meta_cursor_renderer_get_gbm_device (MetaCursorRenderer *renderer)
MetaCursorReference *
meta_cursor_renderer_get_cursor (MetaCursorRenderer *renderer)
{
MetaCursorRendererPrivate *priv = meta_cursor_renderer_get_instance_private (renderer);
return priv->gbm;
return priv->displayed_cursor;
}
const MetaRectangle *
meta_cursor_renderer_get_rect (MetaCursorRenderer *renderer)
{
MetaCursorRendererPrivate *priv = meta_cursor_renderer_get_instance_private (renderer);
return &priv->current_rect;
}