1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #include "ui/display/chromeos/x11/native_display_delegate_x11.h"
9 #include <X11/extensions/dpms.h>
10 #include <X11/extensions/Xrandr.h>
11 #include <X11/extensions/XInput2.h>
15 #include "base/logging.h"
16 #include "base/stl_util.h"
17 #include "ui/display/chromeos/x11/display_mode_x11.h"
18 #include "ui/display/chromeos/x11/display_snapshot_x11.h"
19 #include "ui/display/chromeos/x11/display_util_x11.h"
20 #include "ui/display/chromeos/x11/native_display_event_dispatcher_x11.h"
21 #include "ui/display/types/native_display_observer.h"
22 #include "ui/display/util/x11/edid_parser_x11.h"
23 #include "ui/events/platform/platform_event_source.h"
24 #include "ui/gfx/geometry/rect.h"
25 #include "ui/gfx/x/x11_error_tracker.h"
26 #include "ui/gfx/x/x11_types.h"
33 const float kMmInInch = 25.4;
34 const float kDpi96 = 96.0;
35 const float kPixelsToMmScale = kMmInInch / kDpi96;
37 const char kContentProtectionAtomName[] = "Content Protection";
38 const char kProtectionUndesiredAtomName[] = "Undesired";
39 const char kProtectionDesiredAtomName[] = "Desired";
40 const char kProtectionEnabledAtomName[] = "Enabled";
42 RRMode GetOutputNativeMode(const XRROutputInfo* output_info) {
43 return output_info->nmode > 0 ? output_info->modes[0] : None;
46 XRRCrtcGamma* ResampleGammaRamp(XRRCrtcGamma* gamma_ramp, int gamma_ramp_size) {
47 if (gamma_ramp->size == gamma_ramp_size)
50 #define RESAMPLE(array, i, r) \
51 array[i] + (array[i + 1] - array[i]) * r / gamma_ramp_size
53 XRRCrtcGamma* resampled = XRRAllocGamma(gamma_ramp_size);
54 for (int i = 0; i < gamma_ramp_size; ++i) {
55 int base_index = gamma_ramp->size * i / gamma_ramp_size;
56 int remaining = gamma_ramp->size * i % gamma_ramp_size;
57 if (base_index < gamma_ramp->size - 1) {
58 resampled->red[i] = RESAMPLE(gamma_ramp->red, base_index, remaining);
59 resampled->green[i] = RESAMPLE(gamma_ramp->green, base_index, remaining);
60 resampled->blue[i] = RESAMPLE(gamma_ramp->blue, base_index, remaining);
62 resampled->red[i] = gamma_ramp->red[gamma_ramp->size - 1];
63 resampled->green[i] = gamma_ramp->green[gamma_ramp->size - 1];
64 resampled->blue[i] = gamma_ramp->blue[gamma_ramp->size - 1];
69 XRRFreeGamma(gamma_ramp);
75 ////////////////////////////////////////////////////////////////////////////////
76 // NativeDisplayDelegateX11::HelperDelegateX11
78 class NativeDisplayDelegateX11::HelperDelegateX11
79 : public NativeDisplayDelegateX11::HelperDelegate {
81 HelperDelegateX11(NativeDisplayDelegateX11* delegate) : delegate_(delegate) {}
82 virtual ~HelperDelegateX11() {}
84 // NativeDisplayDelegateX11::HelperDelegate overrides:
85 virtual void UpdateXRandRConfiguration(const base::NativeEvent& event)
87 XRRUpdateConfiguration(event);
89 virtual const std::vector<DisplaySnapshot*>& GetCachedDisplays() const
91 return delegate_->cached_outputs_.get();
93 virtual void NotifyDisplayObservers() override {
95 NativeDisplayObserver, delegate_->observers_, OnConfigurationChanged());
99 NativeDisplayDelegateX11* delegate_;
101 DISALLOW_COPY_AND_ASSIGN(HelperDelegateX11);
104 ////////////////////////////////////////////////////////////////////////////////
105 // NativeDisplayDelegateX11 implementation:
107 NativeDisplayDelegateX11::NativeDisplayDelegateX11()
108 : display_(gfx::GetXDisplay()),
109 window_(DefaultRootWindow(display_)),
111 background_color_argb_(0) {}
113 NativeDisplayDelegateX11::~NativeDisplayDelegateX11() {
114 if (ui::PlatformEventSource::GetInstance()) {
115 ui::PlatformEventSource::GetInstance()->RemovePlatformEventDispatcher(
116 platform_event_dispatcher_.get());
119 STLDeleteContainerPairSecondPointers(modes_.begin(), modes_.end());
122 void NativeDisplayDelegateX11::Initialize() {
123 int error_base_ignored = 0;
124 int xrandr_event_base = 0;
125 XRRQueryExtension(display_, &xrandr_event_base, &error_base_ignored);
127 helper_delegate_.reset(new HelperDelegateX11(this));
128 platform_event_dispatcher_.reset(new NativeDisplayEventDispatcherX11(
129 helper_delegate_.get(), xrandr_event_base));
131 if (ui::PlatformEventSource::GetInstance()) {
132 ui::PlatformEventSource::GetInstance()->AddPlatformEventDispatcher(
133 platform_event_dispatcher_.get());
137 void NativeDisplayDelegateX11::GrabServer() {
138 CHECK(!screen_) << "Server already grabbed";
139 XGrabServer(display_);
140 screen_ = XRRGetScreenResources(display_, window_);
144 void NativeDisplayDelegateX11::UngrabServer() {
145 CHECK(screen_) << "Server not grabbed";
146 XRRFreeScreenResources(screen_);
148 XUngrabServer(display_);
153 bool NativeDisplayDelegateX11::TakeDisplayControl() {
158 bool NativeDisplayDelegateX11::RelinquishDisplayControl() {
163 void NativeDisplayDelegateX11::SyncWithServer() { XSync(display_, 0); }
165 void NativeDisplayDelegateX11::SetBackgroundColor(uint32_t color_argb) {
166 background_color_argb_ = color_argb;
169 void NativeDisplayDelegateX11::ForceDPMSOn() {
170 CHECK(DPMSEnable(display_));
171 CHECK(DPMSForceLevel(display_, DPMSModeOn));
174 std::vector<DisplaySnapshot*> NativeDisplayDelegateX11::GetDisplays() {
175 CHECK(screen_) << "Server not grabbed";
177 cached_outputs_.clear();
178 RRCrtc last_used_crtc = None;
181 for (int i = 0; i < screen_->noutput && cached_outputs_.size() < 2; ++i) {
182 RROutput output_id = screen_->outputs[i];
183 XRROutputInfo* output_info = XRRGetOutputInfo(display_, screen_, output_id);
184 if (output_info->connection == RR_Connected) {
185 DisplaySnapshotX11* output =
186 InitDisplaySnapshot(output_id, output_info, &last_used_crtc, i);
187 cached_outputs_.push_back(output);
189 XRRFreeOutputInfo(output_info);
192 return cached_outputs_.get();
195 void NativeDisplayDelegateX11::AddMode(const DisplaySnapshot& output,
196 const DisplayMode* mode) {
197 CHECK(screen_) << "Server not grabbed";
198 CHECK(mode) << "Must add valid mode";
200 const DisplaySnapshotX11& x11_output =
201 static_cast<const DisplaySnapshotX11&>(output);
202 RRMode mode_id = static_cast<const DisplayModeX11*>(mode)->mode_id();
204 VLOG(1) << "AddDisplayMode: output=" << x11_output.output()
205 << " mode=" << mode_id;
206 XRRAddOutputMode(display_, x11_output.output(), mode_id);
209 bool NativeDisplayDelegateX11::Configure(const DisplaySnapshot& output,
210 const DisplayMode* mode,
211 const gfx::Point& origin) {
212 const DisplaySnapshotX11& x11_output =
213 static_cast<const DisplaySnapshotX11&>(output);
214 RRMode mode_id = None;
216 mode_id = static_cast<const DisplayModeX11*>(mode)->mode_id();
218 return ConfigureCrtc(
219 x11_output.crtc(), mode_id, x11_output.output(), origin.x(), origin.y());
222 bool NativeDisplayDelegateX11::ConfigureCrtc(RRCrtc crtc,
227 CHECK(screen_) << "Server not grabbed";
228 VLOG(1) << "ConfigureCrtc: crtc=" << crtc << " mode=" << mode
229 << " output=" << output << " x=" << x << " y=" << y;
230 // Xrandr.h is full of lies. XRRSetCrtcConfig() is defined as returning a
231 // Status, which is typically 0 for failure and 1 for success. In
232 // actuality it returns a RRCONFIGSTATUS, which uses 0 for success.
233 if (XRRSetCrtcConfig(display_,
241 (output && mode) ? &output : NULL,
242 (output && mode) ? 1 : 0) != RRSetConfigSuccess) {
243 LOG(WARNING) << "Unable to configure CRTC " << crtc << ":"
244 << " mode=" << mode << " output=" << output << " x=" << x
252 void NativeDisplayDelegateX11::CreateFrameBuffer(const gfx::Size& size) {
253 CHECK(screen_) << "Server not grabbed";
254 gfx::Size current_screen_size(
255 DisplayWidth(display_, DefaultScreen(display_)),
256 DisplayHeight(display_, DefaultScreen(display_)));
258 VLOG(1) << "CreateFrameBuffer: new=" << size.ToString()
259 << " current=" << current_screen_size.ToString();
261 DestroyUnusedCrtcs();
263 if (size == current_screen_size)
266 gfx::Size min_screen_size(current_screen_size);
267 min_screen_size.SetToMin(size);
268 UpdateCrtcsForNewFramebuffer(min_screen_size);
270 int mm_width = size.width() * kPixelsToMmScale;
271 int mm_height = size.height() * kPixelsToMmScale;
273 display_, window_, size.width(), size.height(), mm_width, mm_height);
274 // We don't wait for root window resize, therefore this end up with drawing
275 // in the old window size, which we care during the boot.
278 // Don't redraw the background upon framebuffer change again. This should
279 // happen only once after boot.
280 background_color_argb_ = 0;
283 void NativeDisplayDelegateX11::AddObserver(NativeDisplayObserver* observer) {
284 observers_.AddObserver(observer);
287 void NativeDisplayDelegateX11::RemoveObserver(NativeDisplayObserver* observer) {
288 observers_.RemoveObserver(observer);
291 void NativeDisplayDelegateX11::InitModes() {
292 CHECK(screen_) << "Server not grabbed";
294 STLDeleteContainerPairSecondPointers(modes_.begin(), modes_.end());
297 for (int i = 0; i < screen_->nmode; ++i) {
298 const XRRModeInfo& info = screen_->modes[i];
299 float refresh_rate = 0.0f;
300 if (info.hTotal && info.vTotal) {
302 static_cast<float>(info.dotClock) /
303 (static_cast<float>(info.hTotal) * static_cast<float>(info.vTotal));
307 std::make_pair(info.id,
308 new DisplayModeX11(gfx::Size(info.width, info.height),
309 info.modeFlags & RR_Interlace,
315 DisplaySnapshotX11* NativeDisplayDelegateX11::InitDisplaySnapshot(
318 RRCrtc* last_used_crtc,
320 int64_t display_id = 0;
321 if (!GetDisplayId(output, static_cast<uint8_t>(index), &display_id))
324 bool has_overscan = false;
325 GetOutputOverscanFlag(output, &has_overscan);
327 DisplayConnectionType type = GetDisplayConnectionTypeFromName(info->name);
328 if (type == DISPLAY_CONNECTION_TYPE_UNKNOWN)
329 LOG(ERROR) << "Unknown link type: " << info->name;
331 RRMode native_mode_id = GetOutputNativeMode(info);
332 RRMode current_mode_id = None;
335 XRRCrtcInfo* crtc_info = XRRGetCrtcInfo(display_, screen_, info->crtc);
336 current_mode_id = crtc_info->mode;
337 origin.SetPoint(crtc_info->x, crtc_info->y);
338 XRRFreeCrtcInfo(crtc_info);
342 // Assign a CRTC that isn't already in use.
343 for (int i = 0; i < info->ncrtc; ++i) {
344 if (info->crtcs[i] != *last_used_crtc) {
345 crtc = info->crtcs[i];
346 *last_used_crtc = crtc;
351 const DisplayMode* current_mode = NULL;
352 const DisplayMode* native_mode = NULL;
353 std::vector<const DisplayMode*> display_modes;
355 for (int i = 0; i < info->nmode; ++i) {
356 const RRMode mode = info->modes[i];
357 if (modes_.find(mode) != modes_.end()) {
358 display_modes.push_back(modes_.at(mode));
360 if (mode == current_mode_id)
361 current_mode = display_modes.back();
362 if (mode == native_mode_id)
363 native_mode = display_modes.back();
365 LOG(WARNING) << "Unable to find XRRModeInfo for mode " << mode;
369 DisplaySnapshotX11* display_snapshot =
370 new DisplaySnapshotX11(display_id,
372 gfx::Size(info->mm_width, info->mm_height),
374 IsOutputAspectPreservingScaling(output),
376 GetDisplayName(output),
384 VLOG(1) << "Found display " << cached_outputs_.size() << ":"
385 << " output=" << output << " crtc=" << crtc
386 << " current_mode=" << current_mode_id;
388 return display_snapshot;
391 bool NativeDisplayDelegateX11::GetHDCPState(const DisplaySnapshot& output,
393 unsigned char* values = NULL;
394 int actual_format = 0;
395 unsigned long nitems = 0;
396 unsigned long bytes_after = 0;
397 Atom actual_type = None;
399 RROutput output_id = static_cast<const DisplaySnapshotX11&>(output).output();
400 // TODO(kcwu): Use X11AtomCache to save round trip time of XInternAtom.
401 Atom prop = XInternAtom(display_, kContentProtectionAtomName, False);
404 // TODO(kcwu): Move this to x11_util (similar method calls in this file and
406 success = XRRGetOutputProperty(display_,
419 if (actual_type == None) {
420 LOG(ERROR) << "Property '" << kContentProtectionAtomName
421 << "' does not exist";
423 } else if (success == Success && actual_type == XA_ATOM &&
424 actual_format == 32 && nitems == 1) {
425 Atom value = reinterpret_cast<Atom*>(values)[0];
426 if (value == XInternAtom(display_, kProtectionUndesiredAtomName, False)) {
427 *state = HDCP_STATE_UNDESIRED;
429 XInternAtom(display_, kProtectionDesiredAtomName, False)) {
430 *state = HDCP_STATE_DESIRED;
432 XInternAtom(display_, kProtectionEnabledAtomName, False)) {
433 *state = HDCP_STATE_ENABLED;
435 LOG(ERROR) << "Unknown " << kContentProtectionAtomName
436 << " value: " << value;
440 LOG(ERROR) << "XRRGetOutputProperty failed";
446 VLOG(3) << "HDCP state: " << ok << "," << *state;
450 bool NativeDisplayDelegateX11::SetHDCPState(const DisplaySnapshot& output,
452 Atom name = XInternAtom(display_, kContentProtectionAtomName, False);
455 case HDCP_STATE_UNDESIRED:
456 value = XInternAtom(display_, kProtectionUndesiredAtomName, False);
458 case HDCP_STATE_DESIRED:
459 value = XInternAtom(display_, kProtectionDesiredAtomName, False);
462 NOTREACHED() << "Invalid HDCP state: " << state;
465 gfx::X11ErrorTracker err_tracker;
466 unsigned char* data = reinterpret_cast<unsigned char*>(&value);
467 RROutput output_id = static_cast<const DisplaySnapshotX11&>(output).output();
468 XRRChangeOutputProperty(
469 display_, output_id, name, XA_ATOM, 32, PropModeReplace, data, 1);
470 if (err_tracker.FoundNewError()) {
471 LOG(ERROR) << "XRRChangeOutputProperty failed";
478 void NativeDisplayDelegateX11::DestroyUnusedCrtcs() {
479 CHECK(screen_) << "Server not grabbed";
481 for (int i = 0; i < screen_->ncrtc; ++i) {
483 for (ScopedVector<DisplaySnapshot>::const_iterator it =
484 cached_outputs_.begin();
485 it != cached_outputs_.end();
487 DisplaySnapshotX11* x11_output = static_cast<DisplaySnapshotX11*>(*it);
488 if (screen_->crtcs[i] == x11_output->crtc()) {
495 ConfigureCrtc(screen_->crtcs[i], None, None, 0, 0);
499 void NativeDisplayDelegateX11::UpdateCrtcsForNewFramebuffer(
500 const gfx::Size& min_screen_size) {
501 CHECK(screen_) << "Server not grabbed";
502 // Setting the screen size will fail if any CRTC doesn't fit afterwards.
503 // At the same time, turning CRTCs off and back on uses up a lot of time.
504 // This function tries to be smart to avoid too many off/on cycles:
505 // - We set the new modes on CRTCs, if they fit in both the old and new
506 // FBs, and park them at (0,0)
507 // - We disable the CRTCs we will need but don't fit in the old FB. Those
508 // will be reenabled after the resize.
509 // We don't worry about the cached state of the outputs here since we are
510 // not interested in the state we are setting - we just try to get the CRTCs
511 // out of the way so we can rebuild the frame buffer.
512 gfx::Rect fb_rect(min_screen_size);
513 for (ScopedVector<DisplaySnapshot>::const_iterator it =
514 cached_outputs_.begin();
515 it != cached_outputs_.end();
517 DisplaySnapshotX11* x11_output = static_cast<DisplaySnapshotX11*>(*it);
518 const DisplayMode* mode_info = x11_output->current_mode();
519 RROutput output = x11_output->output();
523 mode = static_cast<const DisplayModeX11*>(mode_info)->mode_id();
525 if (!fb_rect.Contains(gfx::Rect(mode_info->size()))) {
526 // In case our CRTC doesn't fit in common area of our current and about
527 // to be resized framebuffer, disable it.
528 // It'll get reenabled after we resize the framebuffer.
535 ConfigureCrtc(x11_output->crtc(), mode, output, 0, 0);
539 bool NativeDisplayDelegateX11::IsOutputAspectPreservingScaling(RROutput id) {
542 Atom scaling_prop = XInternAtom(display_, "scaling mode", False);
543 Atom full_aspect_atom = XInternAtom(display_, "Full aspect", False);
544 if (scaling_prop == None || full_aspect_atom == None)
548 Atom* props = XRRListOutputProperties(display_, id, &nprop);
549 for (int j = 0; j < nprop && !ret; j++) {
550 Atom prop = props[j];
551 if (scaling_prop == prop) {
552 unsigned char* values = NULL;
554 unsigned long nitems;
555 unsigned long bytes_after;
559 success = XRRGetOutputProperty(display_,
572 if (success == Success && actual_type == XA_ATOM && actual_format == 32 &&
574 Atom value = reinterpret_cast<Atom*>(values)[0];
575 if (full_aspect_atom == value)
589 std::vector<ColorCalibrationProfile>
590 NativeDisplayDelegateX11::GetAvailableColorCalibrationProfiles(
591 const DisplaySnapshot& output) {
592 // TODO(mukai|marcheu): Checks the system data and fills the result.
593 // Note that the order would be Dynamic -> Standard -> Movie -> Reading.
594 return std::vector<ColorCalibrationProfile>();
597 bool NativeDisplayDelegateX11::SetColorCalibrationProfile(
598 const DisplaySnapshot& output,
599 ColorCalibrationProfile new_profile) {
600 const DisplaySnapshotX11& x11_output =
601 static_cast<const DisplaySnapshotX11&>(output);
603 XRRCrtcGamma* gamma_ramp = CreateGammaRampForProfile(x11_output, new_profile);
608 int gamma_ramp_size = XRRGetCrtcGammaSize(display_, x11_output.crtc());
609 XRRSetCrtcGamma(display_,
611 ResampleGammaRamp(gamma_ramp, gamma_ramp_size));
612 XRRFreeGamma(gamma_ramp);
616 XRRCrtcGamma* NativeDisplayDelegateX11::CreateGammaRampForProfile(
617 const DisplaySnapshotX11& x11_output,
618 ColorCalibrationProfile new_profile) {
619 // TODO(mukai|marcheu): Creates the appropriate gamma ramp data from the
620 // profile enum. It would be served by the vendor.
624 void NativeDisplayDelegateX11::DrawBackground() {
625 if (!background_color_argb_)
627 // Configuring CRTCs/Framebuffer clears the boot screen image. Paint the
628 // same background color after updating framebuffer to minimize the
629 // duration of black screen at boot time.
631 Colormap colormap = DefaultColormap(display_, 0);
632 // XColor uses 16 bits per color.
633 color.red = (background_color_argb_ & 0x00FF0000) >> 8;
634 color.green = (background_color_argb_ & 0x0000FF00);
635 color.blue = (background_color_argb_ & 0x000000FF) << 8;
636 color.flags = DoRed | DoGreen | DoBlue;
637 XAllocColor(display_, colormap, &color);
639 GC gc = XCreateGC(display_, window_, 0, 0);
640 XSetForeground(display_, gc, color.pixel);
641 XSetFillStyle(display_, gc, FillSolid);
642 int width = DisplayWidth(display_, DefaultScreen(display_));
643 int height = DisplayHeight(display_, DefaultScreen(display_));
644 XFillRectangle(display_, window_, gc, 0, 0, width, height);
645 XFreeGC(display_, gc);
646 XFreeColors(display_, colormap, &color.pixel, 1, 0);