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