void* vncRandRSetPreferredMode(void* out, void* m)
{
RRModePtr mode;
RROutputPtr output;
int width, height;
mode = m;
output = out;
width = mode->mode.width;
height = mode->mode.height;
/* Already the preferred mode? */
if ((output->numModes >= 1) && (output->numPreferred == 1) &&
(output->modes[0] == mode))
return mode;
/* Recreate the list, with the mode we want as preferred */
vncRandRSetModes(output, width, height);
/* Sanity check */
if ((output->numModes >= 1) && (output->numPreferred == 1) &&
(output->modes[0]->mode.width == width) &&
(output->modes[0]->mode.height == height))
return output->modes[0];
/* Something went horribly wrong */
return NULL;
}
static RRCrtcPtr vncRandRCrtcCreate(ScreenPtr pScreen)
{
RRCrtcPtr crtc;
RROutputPtr output;
char name[100];
/* First we create the CRTC... */
crtc = RRCrtcCreate(pScreen, NULL);
/* We don't actually support gamma, but xrandr complains when it is missing */
RRCrtcGammaSetSize (crtc, 256);
/* Then we create a dummy output for it... */
sprintf(name, "VNC-%d", vncRandRIndex);
vncRandRIndex++;
output = RROutputCreate(pScreen, name, strlen(name), NULL);
RROutputSetCrtcs(output, &crtc, 1);
RROutputSetConnection(output, RR_Disconnected);
/* Make sure the CRTC has this output set */
vncRandRCrtcSet(pScreen, crtc, NULL, 0, 0, RR_Rotate_0, 1, &output);
/* Populate a list of default modes */
vncRandRSetModes(output, -1, -1);
return crtc;
}
void* vncRandRCreateMode(void* out, int width, int height)
{
RROutputPtr output;
output = out;
/* Do we already have the mode? */
for (int i = 0; i < output->numModes; i++) {
if ((output->modes[i]->mode.width == width) &&
(output->modes[i]->mode.height == height))
return output->modes[i];
}
/* Just recreate the entire list */
vncRandRSetModes(output, width, height);
/* Find the new mode */
for (int i = 0; i < output->numModes; i++) {
if ((output->modes[i]->mode.width == width) &&
(output->modes[i]->mode.height == height))
return output->modes[i];
}
/* Something went horribly wrong */
return NULL;
}
/* Used to create a preferred mode from various places */
void *vncRandRCreatePreferredMode(void *out, int width, int height)
{
RROutputPtr output;
output = out;
/* Already the preferred mode? */
if ((output->numModes >= 1) && (output->numPreferred == 1) &&
(output->modes[0]->mode.width == width) &&
(output->modes[0]->mode.height == height))
return output->modes[0];
/* Recreate the list, with the mode we want as preferred */
vncRandRSetModes(output, width, height);
if ((output->numModes >= 1) && (output->numPreferred == 1) &&
(output->modes[0]->mode.width == width) &&
(output->modes[0]->mode.height == height))
return output->modes[0];
return NULL;
}