diff options
Diffstat (limited to 'src/i830_xf86Crtc.c')
| -rw-r--r-- | src/i830_xf86Crtc.c | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/src/i830_xf86Crtc.c b/src/i830_xf86Crtc.c new file mode 100644 index 00000000..2eb775bf --- /dev/null +++ b/src/i830_xf86Crtc.c @@ -0,0 +1,140 @@ +/* + * $Id: $ + * + * Copyright © 2006 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 Keith Packard not be used in + * advertising or publicity pertaining to distribution of the software without + * specific, written prior permission. Keith Packard makes no + * representations about the suitability of this software for any purpose. It + * is provided "as is" without express or implied warranty. + * + * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL KEITH PACKARD 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_CONFIG_H +#include "config.h" +#endif + +#include <stddef.h> +#include <string.h> +#include <stdio.h> + +#include "xf86.h" +#include "i830_xf86Crtc.h" + +/* + * Crtc functions + */ +xf86CrtcPtr +xf86CrtcCreate (ScrnInfoPtr scrn, + const xf86CrtcFuncsRec *funcs) +{ + xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn); + xf86CrtcPtr crtc; + + crtc = xcalloc (sizeof (xf86CrtcRec), 1); + if (!crtc) + return NULL; + crtc->scrn = scrn; + crtc->funcs = funcs; +#ifdef RANDR_12_INTERFACE + crtc->randr_crtc = RRCrtcCreate (crtc); + if (!crtc->randr_crtc) + { + xfree (crtc); + return NULL; + } +#endif + xf86_config->crtc[xf86_config->num_crtc++] = crtc; + return crtc; +} + +void +xf86CrtcDestroy (xf86CrtcPtr crtc) +{ + xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(crtc->scrn); + int c; + + (*crtc->funcs->destroy) (crtc); +#ifdef RANDR_12_INTERFACE + RRCrtcDestroy (crtc->randr_crtc); +#endif + for (c = 0; c < xf86_config->num_crtc; c++) + if (xf86_config->crtc[c] == crtc) + { + memmove (&xf86_config->crtc[c], + &xf86_config->crtc[c+1], + xf86_config->num_crtc - (c + 1)); + xf86_config->num_crtc--; + break; + } + xfree (crtc); +} + +/* + * Output functions + */ +xf86OutputPtr +xf86OutputCreate (ScrnInfoPtr scrn, + const xf86OutputFuncsRec *funcs, + const char *name) +{ + xf86OutputPtr output; + xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn); + int len = strlen (name); + + output = xcalloc (sizeof (xf86OutputRec) + len + 1, 1); + if (!output) + return NULL; + output->scrn = scrn; + output->funcs = funcs; + output->name = (char *) (output + 1); + strcpy (output->name, name); +#ifdef RANDR_12_INTERFACE + output->randr_output = RROutputCreate (name, strlen (name), output); + if (!output->randr_output) + { + xfree (output); + return NULL; + } +#endif + xf86_config->output[xf86_config->num_output++] = output; + return output; +} + +void +xf86OutputDestroy (xf86OutputPtr output) +{ + ScrnInfoPtr scrn = output->scrn; + xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn); + int o; + + (*output->funcs->destroy) (output); +#ifdef RANDR_12_INTERFACE + RROutputDestroy (output->randr_output); +#endif + while (output->probed_modes) + xf86DeleteMode (&output->probed_modes, output->probed_modes); + for (o = 0; o < xf86_config->num_output; o++) + if (xf86_config->output[o] == output) + { + memmove (&xf86_config->output[o], + &xf86_config->output[o+1], + xf86_config->num_output - (o + 1)); + xf86_config->num_output--; + break; + } + xfree (output); +} + |