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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/display_compositor/compositor_overlay_candidate_validator_ozone.h"
#include <stddef.h>
#include <utility>
#include "base/memory/ptr_util.h"
#include "cc/output/overlay_strategy_fullscreen.h"
#include "cc/output/overlay_strategy_single_on_top.h"
#include "cc/output/overlay_strategy_underlay.h"
#include "ui/ozone/public/overlay_candidates_ozone.h"
namespace display_compositor {
static gfx::BufferFormat GetBufferFormat(cc::ResourceFormat overlay_format) {
switch (overlay_format) {
// TODO(dshwang): overlay video still uses RGBA_8888.
case cc::RGBA_8888:
case cc::BGRA_8888:
return gfx::BufferFormat::BGRA_8888;
default:
NOTREACHED();
return gfx::BufferFormat::BGRA_8888;
}
}
CompositorOverlayCandidateValidatorOzone::
CompositorOverlayCandidateValidatorOzone(
std::unique_ptr<ui::OverlayCandidatesOzone> overlay_candidates,
bool single_fullscreen)
: overlay_candidates_(std::move(overlay_candidates)),
single_fullscreen_(single_fullscreen),
software_mirror_active_(false) {}
CompositorOverlayCandidateValidatorOzone::
~CompositorOverlayCandidateValidatorOzone() {}
void CompositorOverlayCandidateValidatorOzone::GetStrategies(
cc::OverlayProcessor::StrategyList* strategies) {
if (single_fullscreen_) {
strategies->push_back(
base::MakeUnique<cc::OverlayStrategyFullscreen>(this));
} else {
strategies->push_back(
base::MakeUnique<cc::OverlayStrategySingleOnTop>(this));
strategies->push_back(base::MakeUnique<cc::OverlayStrategyUnderlay>(this));
}
}
bool CompositorOverlayCandidateValidatorOzone::AllowCALayerOverlays() {
return false;
}
void CompositorOverlayCandidateValidatorOzone::CheckOverlaySupport(
cc::OverlayCandidateList* surfaces) {
// SW mirroring copies out of the framebuffer, so we can't remove any
// quads for overlaying, otherwise the output is incorrect.
if (software_mirror_active_) {
for (size_t i = 0; i < surfaces->size(); i++) {
surfaces->at(i).overlay_handled = false;
}
return;
}
if (single_fullscreen_) {
return; // No need for validation for single fullscreen.
}
DCHECK_GE(2U, surfaces->size());
ui::OverlayCandidatesOzone::OverlaySurfaceCandidateList ozone_surface_list;
ozone_surface_list.resize(surfaces->size());
for (size_t i = 0; i < surfaces->size(); i++) {
ozone_surface_list.at(i).transform = surfaces->at(i).transform;
ozone_surface_list.at(i).format = GetBufferFormat(surfaces->at(i).format);
ozone_surface_list.at(i).display_rect = surfaces->at(i).display_rect;
ozone_surface_list.at(i).crop_rect = surfaces->at(i).uv_rect;
ozone_surface_list.at(i).quad_rect_in_target_space =
surfaces->at(i).quad_rect_in_target_space;
ozone_surface_list.at(i).clip_rect = surfaces->at(i).clip_rect;
ozone_surface_list.at(i).is_clipped = surfaces->at(i).is_clipped;
ozone_surface_list.at(i).plane_z_order = surfaces->at(i).plane_z_order;
ozone_surface_list.at(i).buffer_size =
surfaces->at(i).resource_size_in_pixels;
}
overlay_candidates_->CheckOverlaySupport(&ozone_surface_list);
DCHECK_EQ(surfaces->size(), ozone_surface_list.size());
for (size_t i = 0; i < surfaces->size(); i++) {
surfaces->at(i).overlay_handled = ozone_surface_list.at(i).overlay_handled;
surfaces->at(i).display_rect = ozone_surface_list.at(i).display_rect;
}
}
void CompositorOverlayCandidateValidatorOzone::SetSoftwareMirrorMode(
bool enabled) {
software_mirror_active_ = enabled;
}
} // namespace display_compositor
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