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drm: Add get_primary_plane_rotation() helper function

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Factor most of the code in ply_renderer_head_clear_plane_rotation() out
into a get_primary_plane_rotation() helper, this is a preparation patch
for adding support for using hw-rotation in some cases.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Hans de Goede 2019-10-13 22:42:24 +02:00
parent eae3768673
commit c0b8610be1
1 changed files with 91 additions and 64 deletions
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155
src/plugins/renderers/drm/plugin.c
View file

@ -1,6 +1,6 @@
/* plugin.c - drm backend renderer plugin
*
* Copyright (C) 2006-2009 Red Hat, Inc.
* Copyright (C) 2006-2019 Red Hat, Inc.
* 2008 Charlie Brej <cbrej@cs.man.ac.uk>
*
* This program is free software; you can redistribute it and/or modify
@ -22,6 +22,7 @@
* Kristian Høgsberg <krh@redhat.com>
* Peter Jones <pjones@redhat.com>
* Ray Strode <rstrode@redhat.com>
* Hans de Goede <hdegoede@redhat.com>
*/
#include "config.h"
@ -414,6 +415,90 @@ destroy_output_buffer (ply_renderer_backend_t *backend,
ply_renderer_buffer_free (backend, buffer);
}
static bool
get_primary_plane_rotation (ply_renderer_backend_t *backend,
uint32_t controller_id,
int *primary_id_ret,
int *rotation_prop_id_ret,
uint64_t *rotation_ret)
{
drmModeObjectPropertiesPtr plane_props;
drmModePlaneResPtr plane_resources;
drmModePropertyPtr prop;
drmModePlanePtr plane;
uint64_t rotation;
uint32_t i, j;
int rotation_prop_id = -1;
int primary_id = -1;
int err;
if (!controller_id)
return false;
err = drmSetClientCap (backend->device_fd, DRM_CLIENT_CAP_UNIVERSAL_PLANES, 1);
if (err)
return false;
plane_resources = drmModeGetPlaneResources (backend->device_fd);
if (!plane_resources)
return false;
for (i = 0; i < plane_resources->count_planes; i++) {
plane = drmModeGetPlane (backend->device_fd,
plane_resources->planes[i]);
if (!plane)
continue;
if (plane->crtc_id != controller_id) {
drmModeFreePlane (plane);
continue;
}
plane_props = drmModeObjectGetProperties (backend->device_fd,
plane->plane_id,
DRM_MODE_OBJECT_PLANE);
for (j = 0; plane_props && (j < plane_props->count_props); j++) {
prop = drmModeGetProperty (backend->device_fd,
plane_props->props[j]);
if (!prop)
continue;
if (strcmp (prop->name, "type") == 0 &&
plane_props->prop_values[j] == DRM_PLANE_TYPE_PRIMARY) {
primary_id = plane->plane_id;
}
if (strcmp (prop->name, "rotation") == 0) {
rotation_prop_id = plane_props->props[j];
rotation = plane_props->prop_values[j];
}
drmModeFreeProperty (prop);
}
drmModeFreeObjectProperties (plane_props);
drmModeFreePlane (plane);
if (primary_id != -1)
break;
/* Not primary -> clear any found rotation property */
rotation_prop_id = -1;
}
drmModeFreePlaneResources (plane_resources);
if (primary_id != -1 && rotation_prop_id != -1) {
*primary_id_ret = primary_id;
*rotation_prop_id_ret = rotation_prop_id;
*rotation_ret = rotation;
return true;
}
return false;
}
static ply_pixel_buffer_rotation_t
connector_orientation_prop_to_rotation (drmModePropertyPtr prop,
int orientation)
@ -572,69 +657,13 @@ static void
ply_renderer_head_clear_plane_rotation (ply_renderer_backend_t *backend,
ply_renderer_head_t *head)
{
drmModeObjectPropertiesPtr plane_props;
drmModePlaneResPtr plane_resources;
drmModePropertyPtr prop;
drmModePlanePtr plane;
int primary_id, rotation_prop_id, err;
uint64_t rotation;
uint32_t i, j;
int rotation_prop_id = -1;
int primary_id = -1;
int err;
err = drmSetClientCap (backend->device_fd, DRM_CLIENT_CAP_UNIVERSAL_PLANES, 1);
if (err)
return;
plane_resources = drmModeGetPlaneResources (backend->device_fd);
if (!plane_resources)
return;
for (i = 0; i < plane_resources->count_planes; i++) {
plane = drmModeGetPlane (backend->device_fd,
plane_resources->planes[i]);
if (!plane)
continue;
if (plane->crtc_id != head->controller_id) {
drmModeFreePlane (plane);
continue;
}
plane_props = drmModeObjectGetProperties (backend->device_fd,
plane->plane_id,
DRM_MODE_OBJECT_PLANE);
for (j = 0; plane_props && (j < plane_props->count_props); j++) {
prop = drmModeGetProperty (backend->device_fd,
plane_props->props[j]);
if (!prop)
continue;
if (strcmp (prop->name, "type") == 0 &&
plane_props->prop_values[j] == DRM_PLANE_TYPE_PRIMARY) {
primary_id = plane->plane_id;
}
if (strcmp (prop->name, "rotation") == 0) {
rotation_prop_id = plane_props->props[j];
rotation = plane_props->prop_values[j];
}
drmModeFreeProperty (prop);
}
drmModeFreeObjectProperties (plane_props);
drmModeFreePlane (plane);
if (primary_id != -1)
break;
/* Not primary -> clear any found rotation property */
rotation_prop_id = -1;
}
if (primary_id != -1 && rotation_prop_id != -1 && rotation != DRM_MODE_ROTATE_0) {
if (get_primary_plane_rotation (backend, head->controller_id,
&primary_id, &rotation_prop_id,
&rotation) &&
rotation != DRM_MODE_ROTATE_0) {
err = drmModeObjectSetProperty (backend->device_fd,
primary_id,
DRM_MODE_OBJECT_PLANE,
@ -643,8 +672,6 @@ ply_renderer_head_clear_plane_rotation (ply_renderer_backend_t *backend,
ply_trace ("Cleared rotation on primary plane %d result %d",
primary_id, err);
}
drmModeFreePlaneResources (plane_resources);
}
static bool