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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/viz/service/display/overlay_strategy_fullscreen.h"
#include <vector>
#include "components/viz/common/features.h"
#include "components/viz/common/quads/draw_quad.h"
#include "components/viz/common/quads/solid_color_draw_quad.h"
#include "components/viz/service/debugger/viz_debugger.h"
#include "components/viz/service/display/overlay_candidate.h"
#include "components/viz/service/display/overlay_candidate_factory.h"
#include "ui/gfx/geometry/rect_conversions.h"
#include "ui/gfx/geometry/size_conversions.h"
namespace viz {
namespace {
// Returns true if `quad` intersects with any of the quads in
// `quads_with_masks`. It takes into account the fact that quads with rounded
// display masks are all transparent except for the drawn masks. Note: `quad`
// and `quads_with_masks` should all live in the same target space.
bool IntersectsWithRoundedDisplayMask(const DrawQuad* quad,
std::vector<DrawQuad*> quads_with_masks) {
const gfx::Transform& transform =
quad->shared_quad_state->quad_to_target_transform;
const gfx::RectF target_rect = transform.MapRect(gfx::RectF(quad->rect));
for (const auto* mask_quad : quads_with_masks) {
const auto mask_bounds =
TextureDrawQuad::RoundedDisplayMasksInfo::GetRoundedDisplayMasksBounds(
mask_quad);
for (const gfx::RectF& mask_bound : mask_bounds) {
if (target_rect.Intersects(mask_bound)) {
return true;
}
}
}
return false;
}
} // namespace
OverlayStrategyFullscreen::OverlayStrategyFullscreen(
OverlayProcessorUsingStrategy* capability_checker)
: capability_checker_(capability_checker) {
DCHECK(capability_checker);
}
OverlayStrategyFullscreen::~OverlayStrategyFullscreen() = default;
void OverlayStrategyFullscreen::Propose(
const SkM44& output_color_matrix,
const OverlayProcessorInterface::FilterOperationsMap& render_pass_filters,
const OverlayProcessorInterface::FilterOperationsMap&
render_pass_backdrop_filters,
const DisplayResourceProvider* resource_provider,
AggregatedRenderPassList* render_pass_list,
SurfaceDamageRectList* surface_damage_rect_list,
const PrimaryPlane* primary_plane,
std::vector<OverlayProposedCandidate>* candidates,
std::vector<gfx::Rect>* content_bounds) {
auto* render_pass = render_pass_list->back().get();
QuadList* quad_list = &render_pass->quad_list;
std::vector<DrawQuad*> quads_with_masks;
// Find the first visible quad without rounded-display mask textures.
// Allow quads with mask texture above the candidate quad. The mask textures
// are all transparent, expect for the black masks, therefore the promotion
// of fullscreen candidates is potentially possible.
// (See BlackFullscreenOptimization comment)
auto front = quad_list->begin();
while (front != quad_list->end()) {
const bool has_mask_textures =
OverlayCandidate::QuadHasRoundedDisplayMasks(*front);
if (has_mask_textures) {
quads_with_masks.push_back(*front);
}
if (!OverlayCandidate::IsInvisibleQuad(*front) && !has_mask_textures) {
break;
}
++front;
}
if (front == quad_list->end())
return;
const DrawQuad* quad = *front;
if (quad->ShouldDrawWithBlendingForReasonOtherThanMaskFilter()) {
return;
}
OverlayCandidate candidate;
OverlayCandidateFactory::OverlayContext context;
context.supports_mask_filter = false;
context.supports_flip_rotate_transform =
capability_checker_->SupportsFlipRotateTransform();
OverlayCandidateFactory candidate_factory = OverlayCandidateFactory(
render_pass, resource_provider, surface_damage_rect_list,
&output_color_matrix, GetPrimaryPlaneDisplayRect(primary_plane),
&render_pass_filters, context);
if (candidate_factory.FromDrawQuad(quad, candidate) !=
OverlayCandidate::CandidateStatus::kSuccess) {
return;
}
if (!candidate.display_rect.origin().IsOrigin() ||
gfx::ToRoundedSize(candidate.display_rect.size()) !=
render_pass->output_rect.size()) {
// BlackFullscreenOptimization:
// Candidate Quad does not fully cover display but fullscreen is still
// possible if all the other quads do not contribute to primary plane or
// their contribution will simply result in the default black of DRM. The
// best example here is the black bars for aspect ratio found in fullscreen
// video.
if (!base::FeatureList::IsEnabled(
features::kUseDrmBlackFullscreenOptimization)) {
return;
}
auto after_front = front;
++after_front;
while (after_front != quad_list->end()) {
if (!(*after_front)->visible_rect.IsEmpty() &&
!OverlayCandidate::IsInvisibleQuad(*after_front)) {
auto* solid_color_quad =
(*after_front)->DynamicCast<SolidColorDrawQuad>();
if (!solid_color_quad) {
return;
}
if (solid_color_quad->color != SkColors::kBlack) {
return;
}
}
++after_front;
}
}
// To achieve correct visual results, mask candidates should be promoted to
// overlays if the fullscreen quad overlaps promoted (and intersects any mask
// textures drawn above it).
// However, fullscreen strategy is not currently supported for multiple
// overlays. Therefore, if mask textures are drawn on top of a quad
// covering the entire display, that quad should be rejected.
if (IntersectsWithRoundedDisplayMask(quad, quads_with_masks)) {
return;
}
candidate.is_opaque = true;
candidate.plane_z_order = 0;
candidate.overlay_type = gfx::OverlayType::kFullScreen;
candidates->emplace_back(front, candidate, this);
}
bool OverlayStrategyFullscreen::Attempt(
const SkM44& output_color_matrix,
const OverlayProcessorInterface::FilterOperationsMap& render_pass_filters,
const OverlayProcessorInterface::FilterOperationsMap&
render_pass_backdrop_filters,
const DisplayResourceProvider* resource_provider,
AggregatedRenderPassList* render_pass_list,
SurfaceDamageRectList* surface_damage_rect_list,
const PrimaryPlane* primary_plane,
OverlayCandidateList* candidate_list,
std::vector<gfx::Rect>* content_bounds,
const OverlayProposedCandidate& proposed_candidate) {
// Before we attempt an overlay strategy, the candidate list should be empty.
DCHECK(candidate_list->empty());
OverlayCandidateList new_candidate_list;
new_candidate_list.push_back(proposed_candidate.candidate);
capability_checker_->CheckOverlaySupport(nullptr, &new_candidate_list);
if (!new_candidate_list.front().overlay_handled)
return false;
candidate_list->swap(new_candidate_list);
auto* render_pass = render_pass_list->back().get();
CommitCandidate(proposed_candidate, render_pass);
return true;
}
void OverlayStrategyFullscreen::CommitCandidate(
const OverlayProposedCandidate& proposed_candidate,
AggregatedRenderPass* render_pass) {
render_pass->quad_list = QuadList(); // Remove all the quads
}
OverlayStrategy OverlayStrategyFullscreen::GetUMAEnum() const {
return OverlayStrategy::kFullscreen;
}
bool OverlayStrategyFullscreen::RemoveOutputSurfaceAsOverlay() {
// This is called when the strategy is successful. In this case the entire
// screen is covered by the overlay candidate and there is no need to overlay
// the output surface.
return true;
}
} // namespace viz
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