Skip to content

Commit

Permalink
drm: Convert settings into CogDrmPlatform properties
Browse files Browse the repository at this point in the history 
Turn the settings for atomic mode setting and the device scale factor
into properties of the CogDrmPlatform class. This allows using
cog_apply_properties_from_key_file() to automatically apply the
settings from the configuration file.

In the future it may be possible to also pass properties when creating
an object with cog_platform_new(), and/or via the "params" argument
of cog_platform_setup(), and always using the same mechanism (object
properties) regardless of where the values come from.
  • Loading branch information
@aperezdc
aperezdc committed Oct 6, 2022
1 parent e78d714 commit b3575ed
Showing 1 changed file with 76 additions and 57 deletions.
133 changes: 76 additions & 57 deletions platform/drm/cog-platform-drm.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -80,12 +80,16 @@ struct _CogDrmPlatform {
CogGLRendererRotation rotation;
GList *rotatable_input_devices;
bool use_gles;
gboolean atomic_mode_setting;
float device_scale_factor;
};

enum {
PROP_0,
PROP_ROTATION,
PROP_RENDERER,
PROP_ATOMIC_MODE_SETTING,
PROP_DEVICE_SCALE_FACTOR,
N_PROPERTIES,
};

Expand Down Expand Up @@ -127,9 +131,7 @@ static struct {
uint32_t width;
uint32_t height;
uint32_t refresh;
double device_scale;

bool atomic_modesetting;
bool mode_set;
} drm_data = {
.fd = -1,
Expand All @@ -156,8 +158,6 @@ static struct {
.width = 0,
.height = 0,
.refresh = 0,
.device_scale = 1.0,
.atomic_modesetting = true,
.mode_set = false,
};

Expand Down Expand Up @@ -237,43 +237,11 @@ static struct {
static void
init_config(CogDrmPlatform *self, CogShell *shell, const char *params_string)
{
drm_data.device_scale = cog_shell_get_device_scale_factor (shell);
g_debug ("init_config: overriding device_scale value, using %.2f from shell",
drm_data.device_scale);

GKeyFile *key_file = cog_shell_get_config_file (shell);

GKeyFile *key_file = cog_shell_get_config_file(shell);
if (key_file) {
{
g_autoptr(GError) lookup_error = NULL;

gboolean value = g_key_file_get_boolean(key_file, "drm", "disable-atomic-modesetting", &lookup_error);
if (!lookup_error) {
drm_data.atomic_modesetting = !value;
g_debug("init_config: atomic modesetting reconfigured to value '%s'",
drm_data.atomic_modesetting ? "true" : "false");
}
}

{
g_autoptr(GError) lookup_error = NULL;

gdouble value = g_key_file_get_double(key_file, "drm", "device-scale-factor", &lookup_error);
if (!lookup_error) {
drm_data.device_scale = value;
g_debug("init_config: overriding device_scale value, using %.2f from config", drm_data.device_scale);
}
}

{
g_autofree char *value = g_key_file_get_string(key_file, "drm", "renderer", NULL);
if (g_strcmp0(value, "gles") == 0)
self->use_gles = true;
else if (g_strcmp0(value, "modeset") != 0)
self->use_gles = false;
else if (value)
g_warning("Invalid renderer '%s', using default.", value);
}
g_autoptr(GError) error = NULL;
if (!cog_apply_properties_from_key_file(G_OBJECT(self), key_file, "drm", &error))
g_warning("Reading config file: %s", error->message);
}

if (params_string) {
Expand Down Expand Up @@ -308,6 +276,13 @@ init_config(CogDrmPlatform *self, CogShell *shell, const char *params_string)
}
}
}

float device_scale_factor = cog_shell_get_device_scale_factor(shell);
if (device_scale_factor >= 0.2f) {
g_debug("%s: Overriding CogDrmPlatform<%p>.device-scale-factor = <%.2f> from shell", __func__, self,
device_scale_factor);
self->device_scale_factor = device_scale_factor;
}
}

static void
Expand Down Expand Up @@ -352,7 +327,7 @@ check_drm(void)
}

static gboolean
init_drm(void)
init_drm(CogDrmPlatform *self)
{
drmDevice *devices[64];
memset(devices, 0, sizeof(*devices) * 64);
Expand Down Expand Up @@ -399,10 +374,10 @@ init_drm(void)
if (!drm_data.base_resources)
return FALSE;

if (drm_data.atomic_modesetting) {
if (self->atomic_mode_setting) {
int ret = drmSetClientCap (drm_data.fd, DRM_CLIENT_CAP_ATOMIC, 1);
if (ret) {
drm_data.atomic_modesetting = false;
self->atomic_mode_setting = false;
g_debug ("init_drm: atomic mode not usable, falling back to non-atomic mode");
}
}
Expand Down Expand Up @@ -920,7 +895,7 @@ input_handle_pointer_smooth_scroll_event(struct libinput_event_pointer *pointer_
}
#else
static void
input_handle_pointer_axis_event(struct libinput_event_pointer *pointer_event)
input_handle_pointer_axis_event(CogDrmPlatform *self, struct libinput_event_pointer *pointer_event)
{
struct wpe_input_axis_2d_event event = {
.base.type = wpe_input_axis_event_type_mask_2d,
Expand Down Expand Up @@ -948,8 +923,8 @@ input_handle_pointer_axis_event(struct libinput_event_pointer *pointer_event)
libinput_event_pointer_get_axis_value(pointer_event, LIBINPUT_POINTER_AXIS_SCROLL_HORIZONTAL);
}

event.x_axis *= drm_data.device_scale;
event.y_axis *= drm_data.device_scale;
event.x_axis *= self->device_scale_factor;
event.y_axis *= self->device_scale_factor;

wpe_view_backend_dispatch_axis_event(wpe_view_data.backend, &event.base);
}
Expand Down Expand Up @@ -1029,7 +1004,7 @@ input_handle_device_removed(struct libinput_device *device)
}

static void
input_process_events (void)
input_process_events(CogDrmPlatform *self)
{
g_assert (input_data.libinput);
libinput_dispatch (input_data.libinput);
Expand Down Expand Up @@ -1144,7 +1119,7 @@ input_process_events (void)
break;
#else
case LIBINPUT_EVENT_POINTER_AXIS:
input_handle_pointer_axis_event(libinput_event_get_pointer_event(event));
input_handle_pointer_axis_event(self, libinput_event_get_pointer_event(event));
break;
#endif /* LIBINPUT_CHECK_VERSION(1, 19, 0) */
default:
Expand Down Expand Up @@ -1221,6 +1196,7 @@ struct drm_source {
struct input_source {
GSource source;
GPollFD pfd;
CogDrmPlatform *platform;
};

static gboolean
Expand All @@ -1237,7 +1213,7 @@ input_source_dispatch (GSource *base, GSourceFunc callback, gpointer user_data)
if (source->pfd.revents & (G_IO_ERR | G_IO_HUP))
return FALSE;

input_process_events ();
input_process_events(source->platform);
source->pfd.revents = 0;
return TRUE;
}
Expand Down Expand Up @@ -1275,7 +1251,7 @@ clear_glib (void)
}

static gboolean
init_glib (void)
init_glib(CogDrmPlatform *self)
{
static GSourceFuncs input_source_funcs = {
.check = input_source_check,
Expand All @@ -1293,6 +1269,7 @@ init_glib (void)
source->pfd.fd = libinput_get_fd (input_data.libinput);
source->pfd.events = G_IO_IN | G_IO_ERR | G_IO_HUP;
source->pfd.revents = 0;
source->platform = self;
g_source_add_poll (glib_data.input_source, &source->pfd);

g_source_set_name (glib_data.input_source, "cog: input");
Expand Down Expand Up @@ -1351,7 +1328,7 @@ cog_drm_platform_setup(CogPlatform *platform, CogShell *shell, const char *param
return FALSE;
}

if (!init_drm ()) {
if (!init_drm(self)) {
g_set_error_literal (error,
COG_PLATFORM_WPE_ERROR,
COG_PLATFORM_WPE_ERROR_INIT,
Expand Down Expand Up @@ -1388,14 +1365,14 @@ cog_drm_platform_setup(CogPlatform *platform, CogShell *shell, const char *param
drm_data.crtc.obj_id,
drm_data.connector.obj_id,
drm_data.mode,
drm_data.atomic_modesetting);
self->atomic_mode_setting);
} else {
self->renderer = cog_drm_modeset_renderer_new(gbm_data.device,
drm_data.plane.obj_id,
drm_data.crtc.obj_id,
drm_data.connector.obj_id,
drm_data.mode,
drm_data.atomic_modesetting);
self->atomic_mode_setting);
}
if (cog_drm_renderer_supports_rotation(self->renderer, self->rotation)) {
cog_drm_renderer_set_rotation(self->renderer, self->rotation);
Expand All @@ -1413,7 +1390,7 @@ cog_drm_platform_setup(CogPlatform *platform, CogShell *shell, const char *param
return FALSE;
}

if (!init_glib ()) {
if (!init_glib(self)) {
g_set_error_literal (error,
COG_PLATFORM_WPE_ERROR,
COG_PLATFORM_WPE_ERROR_INIT,
Expand Down Expand Up @@ -1458,8 +1435,8 @@ cog_drm_platform_get_view_backend(CogPlatform *platform, WebKitWebView *related_
{
CogDrmPlatform *self = COG_DRM_PLATFORM(platform);
wpe_host_data.exportable = self->renderer->create_exportable(self->renderer,
drm_data.width / drm_data.device_scale,
drm_data.height / drm_data.device_scale);
drm_data.width / self->device_scale_factor,
drm_data.height / self->device_scale_factor);
g_assert (wpe_host_data.exportable);

wpe_view_data.backend = wpe_view_backend_exportable_fdo_get_view_backend (wpe_host_data.exportable);
Expand All @@ -1486,7 +1463,8 @@ set_target_refresh_rate(gpointer user_data)
static void
cog_drm_platform_init_web_view(CogPlatform *platform, WebKitWebView *view)
{
wpe_view_backend_dispatch_set_device_scale_factor(wpe_view_data.backend, drm_data.device_scale);
CogDrmPlatform *self = COG_DRM_PLATFORM(platform);
wpe_view_backend_dispatch_set_device_scale_factor(wpe_view_data.backend, self->device_scale_factor);

#if HAVE_REFRESH_RATE_HANDLING
g_idle_add(G_SOURCE_FUNC(set_target_refresh_rate), &wpe_view_data);
Expand Down Expand Up @@ -1525,6 +1503,12 @@ cog_drm_platform_set_property(GObject *object, unsigned prop_id, const GValue *v
}
break;
}
case PROP_ATOMIC_MODE_SETTING:
self->atomic_mode_setting = g_value_get_boolean(value);
break;
case PROP_DEVICE_SCALE_FACTOR:
self->device_scale_factor = g_value_get_float(value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
}
Expand All @@ -1541,6 +1525,12 @@ cog_drm_platform_get_property(GObject *object, unsigned prop_id, GValue *value,
case PROP_RENDERER:
g_value_set_string(value, self->use_gles ? "gles" : "modeset");
break;
case PROP_ATOMIC_MODE_SETTING:
g_value_set_boolean(value, self->atomic_mode_setting);
break;
case PROP_DEVICE_SCALE_FACTOR:
g_value_set_float(value, self->device_scale_factor);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
}
Expand Down Expand Up @@ -1593,6 +1583,35 @@ cog_drm_platform_class_init(CogDrmPlatformClass *klass)
"modeset",
G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS);

/**
* CogDrmPlatform:atomic-mode-setting:
*
* Whether to use DRM/KMS atomic mode setting.
*
* Even if initially enabled, if the driver reports the feature as not
* supported the setting will be disabled automatically. Explicitly
* disabling atomic mode setting is rarely needed, but might fix issues
* with certain drivers.
*
* Since: 0.18
*/
s_properties[PROP_ATOMIC_MODE_SETTING] = g_param_spec_boolean("atomic-mode-setting",
"Atomic mode setting",
"Use DRM/KMS atomic mode setting",
TRUE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);

/**
* CogDrmPlatform:device-scale-factor:
*
* Scaling factor applied to the output device.
*
* Since: 0.18
*/
s_properties[PROP_DEVICE_SCALE_FACTOR] =
g_param_spec_float("device-scale-factor", "Device scale factor", "Output device scaling factor", 0.25f, 5.0f,
1.0f, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);

g_object_class_install_properties(object_class, N_PROPERTIES, s_properties);
}

Expand Down

0 comments on commit b3575ed

Please sign in to comment.