drm/tests/kms/libkms-test-plane.c

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/*
* Copyright © 2014 NVIDIA Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#include <errno.h>
#include <string.h>
#include "libkms-test.h"
static int kms_plane_probe(struct kms_plane *plane)
{
struct kms_device *device = plane->device;
drmModeObjectPropertiesPtr props;
drmModePlane *p;
unsigned int i;
p = drmModeGetPlane(device->fd, plane->id);
if (!p)
return -ENODEV;
/* TODO: allow dynamic assignment to CRTCs */
if (p->crtc_id == 0) {
for (i = 0; i < device->num_crtcs; i++) {
if (p->possible_crtcs & (1 << i)) {
p->crtc_id = device->crtcs[i]->id;
break;
}
}
}
for (i = 0; i < device->num_crtcs; i++) {
if (device->crtcs[i]->id == p->crtc_id) {
plane->crtc = device->crtcs[i];
break;
}
}
plane->formats = calloc(p->count_formats, sizeof(uint32_t));
if (!plane->formats) {
drmModeFreePlane(p);
return -ENOMEM;
}
for (i = 0; i < p->count_formats; i++)
plane->formats[i] = p->formats[i];
plane->num_formats = p->count_formats;
drmModeFreePlane(p);
props = drmModeObjectGetProperties(device->fd, plane->id,
DRM_MODE_OBJECT_PLANE);
if (!props)
return -ENODEV;
for (i = 0; i < props->count_props; i++) {
drmModePropertyPtr prop;
prop = drmModeGetProperty(device->fd, props->props[i]);
if (prop) {
if (strcmp(prop->name, "type") == 0)
plane->type = props->prop_values[i];
drmModeFreeProperty(prop);
}
}
drmModeFreeObjectProperties(props);
return 0;
}
struct kms_plane *kms_plane_create(struct kms_device *device, uint32_t id)
{
struct kms_plane *plane;
plane = calloc(1, sizeof(*plane));
if (!plane)
return NULL;
plane->device = device;
plane->id = id;
kms_plane_probe(plane);
return plane;
}
void kms_plane_free(struct kms_plane *plane)
{
free(plane);
}
int kms_plane_set(struct kms_plane *plane, struct kms_framebuffer *fb,
unsigned int x, unsigned int y)
{
struct kms_device *device = plane->device;
int err;
err = drmModeSetPlane(device->fd, plane->id, plane->crtc->id, fb->id,
0, x, y, fb->width, fb->height, 0 << 16,
0 << 16, fb->width << 16, fb->height << 16);
if (err < 0)
return -errno;
return 0;
}
bool kms_plane_supports_format(struct kms_plane *plane, uint32_t format)
{
unsigned int i;
for (i = 0; i < plane->num_formats; i++)
if (plane->formats[i] == format)
return true;
return false;
}