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make startup of Xorg smoother if the mode doesn't change. 

just flip the framebuffer in when required.
main
Dave Airlie 2008-03-07 13:03:42 +11:00
parent cf28ca4212
commit 33cb42a9f7
2 changed files with 31 additions and 8 deletions
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10
linux-core/drm_crtc.c
View File

@ -1110,13 +1110,17 @@ int drm_crtc_set_config(struct drm_crtc *crtc, struct drm_mode_crtc *crtc_info,
/* We should be able to check here if the fb has the same properties
* and then just flip_or_move it */
if (crtc->fb != fb)
changed = true;
flip_or_move = true;
if (crtc_info->x != crtc->x || crtc_info->y != crtc->y)
flip_or_move = true;
if (new_mode && !drm_mode_equal(new_mode, &crtc->mode))
if (new_mode && !drm_mode_equal(new_mode, &crtc->mode)) {
DRM_DEBUG("modes are different\n");
drm_mode_debug_printmodeline(dev, &crtc->mode);
drm_mode_debug_printmodeline(dev, new_mode);
changed = true;
}
list_for_each_entry(output, &dev->mode_config.output_list, head) {
save_crtcs[count++] = output->crtc;
@ -1161,6 +1165,8 @@ int drm_crtc_set_config(struct drm_crtc *crtc, struct drm_mode_crtc *crtc_info,
}
drm_disable_unused_functions(dev);
} else if (flip_or_move) {
if (crtc->fb != fb)
crtc->fb = fb;
crtc->funcs->mode_set_base(crtc, crtc_info->x, crtc_info->y);
}

29
linux-core/intel_fb.c
View File

@ -228,6 +228,7 @@ static int intelfb_set_par(struct fb_info *info)
struct drm_output *output = NULL;
struct fb_var_screeninfo *var = &info->var;
int found = 0;
int changed = 0;
DRM_DEBUG("\n");
@ -310,11 +311,22 @@ static int intelfb_set_par(struct fb_info *info)
}
/* re-attach fb */
if (!par->crtc->fb)
if (!par->crtc->fb) {
par->crtc->fb = par->fb;
changed = 1;
}
if (!drm_crtc_set_mode(par->crtc, drm_mode, var->xoffset, var->yoffset))
return -EINVAL;
if (par->crtc->x != var->xoffset || par->crtc->y != var->yoffset)
changed = 1;
drm_mode_debug_printmodeline(dev, drm_mode);
drm_mode_debug_printmodeline(dev, &par->crtc->mode);
if (!drm_mode_equal(drm_mode, &par->crtc->mode))
changed = 1;
if (changed)
if (!drm_crtc_set_mode(par->crtc, drm_mode, var->xoffset, var->yoffset))
return -EINVAL;
return 0;
}
@ -469,16 +481,21 @@ static int intelfb_pan_display(struct fb_var_screeninfo *var,
{
struct intelfb_par *par = info->par;
struct drm_crtc *crtc = par->crtc;
int changed = 0;
DRM_DEBUG("\n");
/* TODO add check size and pos*/
if (par->crtc->x != var->xoffset || par->crtc->y != var->yoffset)
changed = 1;
/* re-attach fb */
if (!crtc->fb)
if (!crtc->fb) {
crtc->fb = par->fb;
changed = 1;
}
drm_crtc_set_mode(crtc, &crtc->mode, var->xoffset, var->yoffset);
if (changed)
drm_crtc_set_mode(crtc, &crtc->mode, var->xoffset, var->yoffset);
info->var.xoffset = var->xoffset;
info->var.yoffset = var->yoffset;