void
xf86RotateCloseScreen(ScreenPtr screen)
{
ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
int c;
for (c = 0; c < xf86_config->num_crtc; c++)
xf86RotateDestroy(xf86_config->crtc[c]);
}
void
xf86RotateCloseScreen(ScreenPtr screen)
{
ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
int c;
/* This has already been destroyed when the root window was destroyed */
xf86_config->rotation_damage = NULL;
for (c = 0; c < xf86_config->num_crtc; c++)
xf86RotateDestroy(xf86_config->crtc[c]);
}
Bool
xf86CrtcRotate(xf86CrtcPtr crtc)
{
ScrnInfoPtr pScrn = crtc->scrn;
xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
ScreenPtr pScreen = xf86ScrnToScreen(pScrn);
PictTransform crtc_to_fb;
struct pict_f_transform f_crtc_to_fb, f_fb_to_crtc;
xFixed *new_params = NULL;
int new_nparams = 0;
PictFilterPtr new_filter = NULL;
int new_width = 0;
int new_height = 0;
RRTransformPtr transform = NULL;
Bool damage = FALSE;
if (pScreen->isGPU)
return TRUE;
if (crtc->transformPresent)
transform = &crtc->transform;
if (!RRTransformCompute(crtc->x, crtc->y,
crtc->mode.HDisplay, crtc->mode.VDisplay,
crtc->rotation,
transform,
&crtc_to_fb,
&f_crtc_to_fb,
&f_fb_to_crtc) &&
xf86CrtcFitsScreen(crtc, &f_crtc_to_fb)) {
/*
* If the untranslated transformation is the identity,
* disable the shadow buffer
*/
xf86RotateDestroy(crtc);
crtc->transform_in_use = FALSE;
free(new_params);
new_params = NULL;
new_nparams = 0;
new_filter = NULL;
new_width = 0;
new_height = 0;
}
else {
if (crtc->driverIsPerformingTransform) {
xf86RotateDestroy(crtc);
}
else {
/*
* these are the size of the shadow pixmap, which
* matches the mode, not the pre-rotated copy in the
* frame buffer
*/
int width = crtc->mode.HDisplay;
int height = crtc->mode.VDisplay;
void *shadowData = crtc->rotatedData;
PixmapPtr shadow = crtc->rotatedPixmap;
int old_width = shadow ? shadow->drawable.width : 0;
int old_height = shadow ? shadow->drawable.height : 0;
/* Allocate memory for rotation */
if (old_width != width || old_height != height) {
if (shadow || shadowData) {
crtc->funcs->shadow_destroy(crtc, shadow, shadowData);
crtc->rotatedPixmap = NULL;
crtc->rotatedData = NULL;
}
shadowData = crtc->funcs->shadow_allocate(crtc, width, height);
if (!shadowData)
goto bail1;
crtc->rotatedData = shadowData;
/* shadow will be damaged in xf86RotatePrepare */
}
else {
/* mark shadowed area as damaged so it will be repainted */
damage = TRUE;
}
if (!xf86_config->rotation_damage) {
/* Create damage structure */
xf86_config->rotation_damage = DamageCreate(NULL, NULL,
DamageReportNone,
TRUE, pScreen,
pScreen);
if (!xf86_config->rotation_damage)
goto bail2;
/* Wrap block handler */
if (!xf86_config->BlockHandler) {
xf86_config->BlockHandler = pScreen->BlockHandler;
pScreen->BlockHandler = xf86RotateBlockHandler;
}
}
if (0) {
bail2:
if (shadow || shadowData) {
crtc->funcs->shadow_destroy(crtc, shadow, shadowData);
crtc->rotatedPixmap = NULL;
crtc->rotatedData = NULL;
}
bail1:
if (old_width && old_height)
crtc->rotatedPixmap =
crtc->funcs->shadow_create(crtc, NULL, old_width,
old_height);
return FALSE;
}
}
#ifdef RANDR_12_INTERFACE
if (transform) {
if (transform->nparams) {
new_params = malloc(transform->nparams * sizeof(xFixed));
if (new_params) {
memcpy(new_params, transform->params,
transform->nparams * sizeof(xFixed));
new_nparams = transform->nparams;
new_filter = transform->filter;
}
}
else
new_filter = transform->filter;
if (new_filter) {
new_width = new_filter->width;
new_height = new_filter->height;
}
}
#endif
crtc->transform_in_use = TRUE;
}
crtc->crtc_to_framebuffer = crtc_to_fb;
crtc->f_crtc_to_framebuffer = f_crtc_to_fb;
crtc->f_framebuffer_to_crtc = f_fb_to_crtc;
free(crtc->params);
crtc->params = new_params;
crtc->nparams = new_nparams;
crtc->filter = new_filter;
crtc->filter_width = new_width;
crtc->filter_height = new_height;
crtc->bounds.x1 = 0;
crtc->bounds.x2 = crtc->mode.HDisplay;
crtc->bounds.y1 = 0;
crtc->bounds.y2 = crtc->mode.VDisplay;
pixman_f_transform_bounds(&f_crtc_to_fb, &crtc->bounds);
if (damage)
xf86CrtcDamageShadow(crtc);
/* All done */
return TRUE;
}
_X_EXPORT Bool
xf86CrtcRotate (xf86CrtcPtr crtc, DisplayModePtr mode, Rotation rotation)
{
ScrnInfoPtr pScrn = crtc->scrn;
xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
ScreenPtr pScreen = pScrn->pScreen;
PictTransform crtc_to_fb, fb_to_crtc;
PictureTransformIdentity (&crtc_to_fb);
PictureTransformIdentity (&fb_to_crtc);
PictureTransformIsInverse ("identity", &crtc_to_fb, &fb_to_crtc);
if (rotation != RR_Rotate_0)
{
xFixed rot_cos, rot_sin, rot_dx, rot_dy;
xFixed scale_x, scale_y, scale_dx, scale_dy;
int mode_w = crtc->mode.HDisplay;
int mode_h = crtc->mode.VDisplay;
/* rotation */
switch (rotation & 0xf) {
default:
case RR_Rotate_0:
rot_cos = F ( 1); rot_sin = F ( 0);
rot_dx = F ( 0); rot_dy = F ( 0);
break;
case RR_Rotate_90:
rot_cos = F ( 0); rot_sin = F ( 1);
rot_dx = F ( mode_h); rot_dy = F (0);
break;
case RR_Rotate_180:
rot_cos = F (-1); rot_sin = F ( 0);
rot_dx = F (mode_w); rot_dy = F ( mode_h);
break;
case RR_Rotate_270:
rot_cos = F ( 0); rot_sin = F (-1);
rot_dx = F ( 0); rot_dy = F ( mode_w);
break;
}
PictureTransformRotate (&crtc_to_fb, &fb_to_crtc, rot_cos, rot_sin);
PictureTransformIsInverse ("rotate", &crtc_to_fb, &fb_to_crtc);
PictureTransformTranslate (&crtc_to_fb, &fb_to_crtc, rot_dx, rot_dy);
PictureTransformIsInverse ("rotate translate", &crtc_to_fb, &fb_to_crtc);
/* reflection */
scale_x = F (1);
scale_dx = 0;
scale_y = F (1);
scale_dy = 0;
if (rotation & RR_Reflect_X)
{
scale_x = F(-1);
if (rotation & (RR_Rotate_0|RR_Rotate_180))
scale_dx = F(mode_w);
else
scale_dx = F(mode_h);
}
if (rotation & RR_Reflect_Y)
{
scale_y = F(-1);
if (rotation & (RR_Rotate_0|RR_Rotate_180))
scale_dy = F(mode_h);
else
scale_dy = F(mode_w);
}
PictureTransformScale (&crtc_to_fb, &fb_to_crtc, scale_x, scale_y);
PictureTransformIsInverse ("scale", &crtc_to_fb, &fb_to_crtc);
PictureTransformTranslate (&crtc_to_fb, &fb_to_crtc, scale_dx, scale_dy);
PictureTransformIsInverse ("scale translate", &crtc_to_fb, &fb_to_crtc);
}
/*
* If the untranslated transformation is the identity,
* disable the shadow buffer
*/
if (PictureTransformIsIdentity (&crtc_to_fb))
{
crtc->transform_in_use = FALSE;
PictureTransformInitTranslate (&crtc->crtc_to_framebuffer,
F (-crtc->x), F (-crtc->y));
PictureTransformInitTranslate (&crtc->framebuffer_to_crtc,
F ( crtc->x), F ( crtc->y));
xf86RotateDestroy (crtc);
}
else
{
PictureTransformTranslate (&crtc_to_fb, &fb_to_crtc, F(crtc->x), F(crtc->y));
PictureTransformIsInverse ("offset", &crtc_to_fb, &fb_to_crtc);
/*
* these are the size of the shadow pixmap, which
* matches the mode, not the pre-rotated copy in the
* frame buffer
*/
int width = mode->HDisplay;
int height = mode->VDisplay;
void *shadowData = crtc->rotatedData;
PixmapPtr shadow = crtc->rotatedPixmap;
int old_width = shadow ? shadow->drawable.width : 0;
int old_height = shadow ? shadow->drawable.height : 0;
/* Allocate memory for rotation */
if (old_width != width || old_height != height)
{
if (shadow || shadowData)
{
crtc->funcs->shadow_destroy (crtc, shadow, shadowData);
crtc->rotatedPixmap = NULL;
crtc->rotatedData = NULL;
}
shadowData = crtc->funcs->shadow_allocate (crtc, width, height);
if (!shadowData)
goto bail1;
crtc->rotatedData = shadowData;
/* shadow will be damaged in xf86RotatePrepare */
}
else
{
/* mark shadowed area as damaged so it will be repainted */
xf86CrtcDamageShadow (crtc);
}
if (!xf86_config->rotation_damage)
{
/* Create damage structure */
xf86_config->rotation_damage = DamageCreate (NULL, NULL,
DamageReportNone,
TRUE, pScreen, pScreen);
if (!xf86_config->rotation_damage)
goto bail2;
/* Wrap block handler */
xf86_config->BlockHandler = pScreen->BlockHandler;
pScreen->BlockHandler = xf86RotateBlockHandler;
}
if (0)
{
bail2:
if (shadow || shadowData)
{
crtc->funcs->shadow_destroy (crtc, shadow, shadowData);
crtc->rotatedPixmap = NULL;
crtc->rotatedData = NULL;
}
bail1:
if (old_width && old_height)
crtc->rotatedPixmap = crtc->funcs->shadow_create (crtc,
NULL,
old_width,
old_height);
return FALSE;
}
crtc->transform_in_use = TRUE;
crtc->crtc_to_framebuffer = crtc_to_fb;
crtc->framebuffer_to_crtc = fb_to_crtc;
crtc->bounds.x1 = 0;
crtc->bounds.x2 = crtc->mode.HDisplay;
crtc->bounds.y1 = 0;
crtc->bounds.y2 = crtc->mode.VDisplay;
PictureTransformBounds (&crtc->bounds, &crtc_to_fb);
}
/* All done */
return TRUE;
}
