xref: /xsrc/external/mit/xf86-video-ati-kms/dist/src/radeon_dri2.h

/*
 * Copyright 2008 Jerome Glisse
 *
 * All Rights Reserved.
 *
 * 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 on 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
 * NON-INFRINGEMENT.  IN NO EVENT SHALL ATI, VA LINUX SYSTEMS AND/OR
 * THEIR SUPPLIERS 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.
 */
#ifndef RADEON_DRI2_H
#define RADEON_DRI2_H

#include <xorg-server.h>

struct radeon_dri2 {
    drmVersionPtr     pKernelDRMVersion;
    int         drm_fd;
    Bool        available;
    Bool        enabled;
    char	*device_name;
};

#ifdef DRI2

#include "dri2.h"
Bool radeon_dri2_screen_init(ScreenPtr pScreen);
void radeon_dri2_close_screen(ScreenPtr pScreen);

int drmmode_get_crtc_id(xf86CrtcPtr crtc);
void radeon_dri2_frame_event_handler(unsigned int frame, unsigned int tv_sec,
                                     unsigned int tv_usec, void *event_data);
void radeon_dri2_flip_event_handler(unsigned int frame, unsigned int tv_sec,
				    unsigned int tv_usec, void *event_data);

#else

static inline Bool radeon_dri2_screen_init(ScreenPtr pScreen) { return FALSE; }
static inline void radeon_dri2_close_screen(ScreenPtr pScreen) {}

static inline void
radeon_dri2_dummy_event_handler(unsigned int frame, unsigned int tv_sec,
				unsigned int tv_usec, void *event_data,
				const char *name)
{
	static Bool warned;

	if (!warned) {
		ErrorF("%s called but DRI2 disabled at build time\n", name);
		warned = TRUE;
	}

	free(event_data);
}

static inline void
radeon_dri2_frame_event_handler(unsigned int frame, unsigned int tv_sec,
				unsigned int tv_usec, void *event_data)
{
	radeon_dri2_dummy_event_handler(frame, tv_sec, tv_usec, event_data,
					__func__);
}

static inline void
radeon_dri2_flip_event_handler(unsigned int frame, unsigned int tv_sec,
			       unsigned int tv_usec, void *event_data)
{
	radeon_dri2_dummy_event_handler(frame, tv_sec, tv_usec, event_data,
					__func__);
}

#endif

#endif /* RADEON_DRI2_H */