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Disable unused planes

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This commit is contained in:
Simon Ser 2019-08-23 18:48:13 +03:00
parent 00f85c4eca
commit 6d5221370e
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GPG key ID: 0FDE7BE0E88F5E48
2 changed files with 39 additions and 17 deletions
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54
display.c
View file

@ -1,3 +1,4 @@
#include <assert.h>
#include <errno.h>
#include <inttypes.h>
#include <stdlib.h>
@ -126,23 +127,37 @@ static struct hwc_plane_property *plane_get_property(struct hwc_plane *plane,
return NULL;
}
static bool layer_apply(struct hwc_layer *layer, struct hwc_plane *plane,
static bool plane_set_prop(struct hwc_plane *plane, drmModeAtomicReq *req,
struct hwc_plane_property *prop, uint64_t value)
{
int ret;
fprintf(stderr, " Setting %s = %"PRIu64"\n", prop->name, value);
ret = drmModeAtomicAddProperty(req, plane->id, prop->id, value);
if (ret < 0) {
perror("drmModeAtomicAddProperty");
return false;
}
return true;
}
static bool plane_apply(struct hwc_plane *plane, struct hwc_layer *layer,
drmModeAtomicReq *req)
{
size_t i;
int ret;
struct hwc_layer_property *layer_prop;
struct hwc_plane_property *plane_prop;
/* TODO: disable planes that aren't used */
if (layer == NULL) {
plane_prop = plane_get_property(plane, "FB_ID");
assert(plane_prop);
return plane_set_prop(plane, req, plane_prop, 0);
}
fprintf(stderr, " Setting CRTC_ID = %"PRIu32"\n",
layer->output->crtc_id);
plane_prop = plane_get_property(plane, "CRTC_ID");
ret = drmModeAtomicAddProperty(req, plane->id, plane_prop->id,
layer->output->crtc_id);
if (ret < 0) {
perror("drmModeAtomicAddProperty");
assert(plane_prop);
if (!plane_set_prop(plane, req, plane_prop, layer->output->crtc_id)) {
return false;
}
@ -155,13 +170,7 @@ static bool layer_apply(struct hwc_layer *layer, struct hwc_plane *plane,
return false;
}
fprintf(stderr, " Setting %s = %"PRIu64"\n", layer_prop->name,
layer_prop->value);
ret = drmModeAtomicAddProperty(req, plane->id,
plane_prop->id,
layer_prop->value);
if (ret < 0) {
perror("drmModeAtomicAddProperty");
if (!plane_set_prop(plane, req, plane_prop, layer_prop->value)) {
return false;
}
}
@ -185,7 +194,7 @@ static bool layer_choose_plane(struct hwc_layer *layer, drmModeAtomicReq *req)
fprintf(stderr, "Trying to apply layer %p with plane %d...\n",
(void *)layer, plane->id);
if (!layer_apply(layer, plane, req)) {
if (!plane_apply(plane, layer, req)) {
return false;
}
@ -194,6 +203,7 @@ static bool layer_choose_plane(struct hwc_layer *layer, drmModeAtomicReq *req)
if (ret == 0) {
fprintf(stderr, "Success\n");
layer->plane = plane;
plane->layer = layer;
return true;
} else if (-ret != EINVAL && -ret != ERANGE) {
perror("drmModeAtomicCommit");
@ -210,8 +220,10 @@ static bool layer_choose_plane(struct hwc_layer *layer, drmModeAtomicReq *req)
bool hwc_display_apply(struct hwc_display *display, drmModeAtomicReq *req)
{
int cursor;
size_t i;
struct hwc_output *output;
struct hwc_layer *layer;
struct hwc_plane *plane;
cursor = drmModeAtomicGetCursor(req);
@ -227,5 +239,13 @@ bool hwc_display_apply(struct hwc_display *display, drmModeAtomicReq *req)
}
}
for (i = 0; i < display->planes_len; i++) {
plane = &display->planes[i];
if (plane->layer == NULL) {
fprintf(stderr, "Disabling plane %d\n", plane->id);
plane_apply(plane, NULL, req);
}
}
return true;
}

2
include/private.h
View file

@ -43,6 +43,8 @@ struct hwc_plane {
struct hwc_plane_property *props;
size_t props_len;
struct hwc_layer *layer;
};
struct hwc_plane_property {