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/*
* Copyright © 2013 Keith Packard
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
#include "dri3_priv.h"
#include <drm_fourcc.h>
static int dri3_request;
DevPrivateKeyRec dri3_screen_private_key;
static int dri3_screen_generation;
static Bool
dri3_close_screen(ScreenPtr screen)
{
dri3_screen_priv_ptr screen_priv = dri3_screen_priv(screen);
unwrap(screen_priv, screen, CloseScreen);
free(screen_priv);
return (*screen->CloseScreen) (screen);
}
Bool
dri3_screen_init(ScreenPtr screen, const dri3_screen_info_rec *info)
{
dri3_screen_generation = serverGeneration;
if (!dixRegisterPrivateKey(&dri3_screen_private_key, PRIVATE_SCREEN, 0))
return FALSE;
if (!dri3_screen_priv(screen)) {
dri3_screen_priv_ptr screen_priv = calloc(1, sizeof (dri3_screen_priv_rec));
if (!screen_priv)
return FALSE;
wrap(screen_priv, screen, CloseScreen, dri3_close_screen);
screen_priv->info = info;
dixSetPrivate(&screen->devPrivates, &dri3_screen_private_key, screen_priv);
}
return TRUE;
}
void
dri3_extension_init(void)
{
ExtensionEntry *extension;
int i;
/* If no screens support DRI3, there's no point offering the
* extension at all
*/
if (dri3_screen_generation != serverGeneration)
return;
#ifdef PANORAMIX
if (!noPanoramiXExtension)
return;
#endif
extension = AddExtension(DRI3_NAME, DRI3NumberEvents, DRI3NumberErrors,
proc_dri3_dispatch, sproc_dri3_dispatch,
NULL, StandardMinorOpcode);
if (!extension)
goto bail;
dri3_request = extension->base;
for (i = 0; i < screenInfo.numScreens; i++) {
if (!dri3_screen_init(screenInfo.screens[i], NULL))
goto bail;
}
return;
bail:
FatalError("Cannot initialize DRI3 extension");
}
uint32_t
drm_format_for_depth(uint32_t depth, uint32_t bpp)
{
switch (bpp) {
case 16:
return DRM_FORMAT_RGB565;
case 24:
return DRM_FORMAT_XRGB8888;
case 30:
return DRM_FORMAT_XRGB2101010;
case 32:
return DRM_FORMAT_ARGB8888;
default:
return 0;
}
}
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