/*

 * 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;

}