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chromium / chromium / src / 83bb172f2dd0e3e9ec6a93025bae11e11ccd5386 / . / components / viz / service / display / surface_aggregator.cc
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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/viz/service/display/surface_aggregator.h"
#include <stddef.h>
#include <map>
#include "base/auto_reset.h"
#include "base/bind.h"
#include "base/containers/adapters.h"
#include "base/logging.h"
#include "base/macros.h"
#include "base/metrics/histogram_macros.h"
#include "base/numerics/ranges.h"
#include "base/stl_util.h"
#include "base/trace_event/trace_event.h"
#include "cc/base/math_util.h"
#include "components/viz/common/display/de_jelly.h"
#include "components/viz/common/quads/compositor_frame.h"
#include "components/viz/common/quads/debug_border_draw_quad.h"
#include "components/viz/common/quads/draw_quad.h"
#include "components/viz/common/quads/render_pass_draw_quad.h"
#include "components/viz/common/quads/shared_quad_state.h"
#include "components/viz/common/quads/solid_color_draw_quad.h"
#include "components/viz/common/quads/surface_draw_quad.h"
#include "components/viz/common/quads/texture_draw_quad.h"
#include "components/viz/common/surfaces/surface_range.h"
#include "components/viz/service/display/display_resource_provider.h"
#include "components/viz/service/display/renderer_utils.h"
#include "components/viz/service/surfaces/surface.h"
#include "components/viz/service/surfaces/surface_allocation_group.h"
#include "components/viz/service/surfaces/surface_client.h"
#include "components/viz/service/surfaces/surface_manager.h"
#include "ui/gfx/geometry/angle_conversions.h"
#include "ui/gfx/geometry/rect_conversions.h"
#include "ui/gfx/overlay_transform_utils.h"
namespace viz {
namespace {
// Used for determine when to treat opacity close to 1.f as opaque. The value is
// chosen to be smaller than 1/255.
constexpr float kOpacityEpsilon = 0.001f;
void MoveMatchingRequests(
RenderPassId render_pass_id,
std::multimap<RenderPassId, std::unique_ptr<CopyOutputRequest>>*
copy_requests,
std::vector<std::unique_ptr<CopyOutputRequest>>* output_requests) {
auto request_range = copy_requests->equal_range(render_pass_id);
for (auto it = request_range.first; it != request_range.second; ++it) {
DCHECK(it->second);
output_requests->push_back(std::move(it->second));
}
copy_requests->erase(request_range.first, request_range.second);
}
// Returns true if the damage rect is valid.
bool CalculateQuadSpaceDamageRect(
const gfx::Transform& quad_to_target_transform,
const gfx::Transform& target_to_root_transform,
const gfx::Rect& root_damage_rect,
gfx::Rect* quad_space_damage_rect) {
gfx::Transform quad_to_root_transform(target_to_root_transform,
quad_to_target_transform);
gfx::Transform inverse_transform(gfx::Transform::kSkipInitialization);
bool inverse_valid = quad_to_root_transform.GetInverse(&inverse_transform);
if (!inverse_valid)
return false;
*quad_space_damage_rect = cc::MathUtil::ProjectEnclosingClippedRect(
inverse_transform, root_damage_rect);
return true;
}
} // namespace
struct SurfaceAggregator::ClipData {
std::string ToString() const {
return is_clipped ? "clip " + rect.ToString() : "no clip";
}
bool is_clipped = false;
gfx::Rect rect;
};
struct SurfaceAggregator::PrewalkResult {
// This is the set of Surfaces that were referenced by another Surface, but
// not included in a SurfaceDrawQuad.
base::flat_set<SurfaceId> undrawn_surfaces;
bool may_contain_video = false;
};
struct SurfaceAggregator::RoundedCornerInfo {
RoundedCornerInfo() = default;
// |target_transform| is the transform that maps |bounds_arg| from its current
// space into the desired target space. It must be an axis aligned transform.
RoundedCornerInfo(const gfx::RRectF& bounds_arg,
bool is_fast_rounded_corner,
const gfx::Transform target_transform)
: bounds(bounds_arg), is_fast_rounded_corner(is_fast_rounded_corner) {
if (bounds.IsEmpty())
return;
bool success = target_transform.TransformRRectF(&bounds);
DCHECK(success);
}
gfx::RRectF bounds;
bool is_fast_rounded_corner;
};
struct SurfaceAggregator::ChildSurfaceInfo {
ChildSurfaceInfo(RenderPassId parent_pass_id,
const gfx::Transform& quad_to_target_transform,
const gfx::Rect& quad_rect,
bool stretch_content_to_fill_bounds,
bool is_clipped,
const gfx::Rect& clip_rect)
: parent_pass_id(parent_pass_id),
quad_to_target_transform(quad_to_target_transform),
quad_rect(quad_rect),
stretch_content_to_fill_bounds(stretch_content_to_fill_bounds),
is_clipped(is_clipped),
clip_rect(clip_rect) {
// In most cases there would be one or two different transforms to root
// target. Reserve two elements to avoid unnecessary copies.
transforms_to_root_target.reserve(2);
}
RenderPassId parent_pass_id;
gfx::Transform quad_to_target_transform;
gfx::Rect quad_rect;
bool stretch_content_to_fill_bounds;
bool is_clipped;
gfx::Rect clip_rect;
bool has_moved_pixels = false;
std::vector<gfx::Transform> transforms_to_root_target;
};
struct SurfaceAggregator::RenderPassMapEntry {
RenderPassMapEntry(RenderPass* render_pass,
bool has_pixel_moving_backdrop_filter)
: render_pass(render_pass),
has_pixel_moving_backdrop_filter(has_pixel_moving_backdrop_filter) {}
// Make this move-only.
RenderPassMapEntry(RenderPassMapEntry&&) = default;
RenderPassMapEntry(const RenderPassMapEntry&) = delete;
RenderPassMapEntry& operator=(RenderPassMapEntry&&) = default;
RenderPassMapEntry& operator=(const RenderPassMapEntry&) = delete;
RenderPass* render_pass;
bool has_pixel_moving_backdrop_filter;
bool is_visited = false;
};
SurfaceAggregator::SurfaceAggregator(SurfaceManager* manager,
DisplayResourceProvider* provider,
bool aggregate_only_damaged,
bool needs_surface_occluding_damage_rect)
: manager_(manager),
provider_(provider),
next_render_pass_id_(1),
aggregate_only_damaged_(aggregate_only_damaged),
needs_surface_occluding_damage_rect_(needs_surface_occluding_damage_rect),
de_jelly_enabled_(DeJellyEnabled()) {
DCHECK(manager_);
}
SurfaceAggregator::~SurfaceAggregator() {
// Notify client of all surfaces being removed.
contained_surfaces_.clear();
contained_frame_sinks_.clear();
ProcessAddedAndRemovedSurfaces();
}
// static
base::flat_map<RenderPassId, SurfaceAggregator::RenderPassMapEntry>
SurfaceAggregator::GenerateRenderPassMap(const RenderPassList& render_pass_list,
bool is_root_surface) {
const auto* root_pass_in_root_surface =
is_root_surface ? render_pass_list.back().get() : nullptr;
// This data is created once and typically small or empty. Collect all items
// and pass to a flat_map to sort once.
std::vector<std::pair<RenderPassId, RenderPassMapEntry>> render_pass_data;
for (const auto& render_pass : render_pass_list) {
bool has_pixel_moving_backdrop_filter =
render_pass->backdrop_filters.HasFilterThatMovesPixels();
if (has_pixel_moving_backdrop_filter) {
DCHECK_NE(render_pass.get(), root_pass_in_root_surface)
<< "The root render pass on the root surface can not have backdrop "
"affecting filters";
}
render_pass_data.emplace_back(
std::piecewise_construct, std::forward_as_tuple(render_pass->id),
std::forward_as_tuple(render_pass.get(),
has_pixel_moving_backdrop_filter));
}
return base::flat_map<RenderPassId, RenderPassMapEntry>(
std::move(render_pass_data));
}
// Create a clip rect for an aggregated quad from the original clip rect and
// the clip rect from the surface it's on.
SurfaceAggregator::ClipData SurfaceAggregator::CalculateClipRect(
const ClipData& surface_clip,
const ClipData& quad_clip,
const gfx::Transform& target_transform) {
ClipData out_clip;
if (surface_clip.is_clipped)
out_clip = surface_clip;
if (quad_clip.is_clipped) {
// TODO(jamesr): This only works if target_transform maps integer
// rects to integer rects.
gfx::Rect final_clip =
cc::MathUtil::MapEnclosingClippedRect(target_transform, quad_clip.rect);
if (out_clip.is_clipped)
out_clip.rect.Intersect(final_clip);
else
out_clip.rect = final_clip;
out_clip.is_clipped = true;
}
return out_clip;
}
RenderPassId SurfaceAggregator::RemapPassId(RenderPassId surface_local_pass_id,
const SurfaceId& surface_id) {
auto key = std::make_pair(surface_id, surface_local_pass_id);
auto it = render_pass_allocator_map_.find(key);
if (it != render_pass_allocator_map_.end()) {
it->second.in_use = true;
return it->second.id;
}
RenderPassInfo render_pass_info;
render_pass_info.id = next_render_pass_id_++;
render_pass_allocator_map_[key] = render_pass_info;
return render_pass_info.id;
}
int SurfaceAggregator::ChildIdForSurface(Surface* surface) {
auto it = surface_id_to_resource_child_id_.find(surface->surface_id());
if (it == surface_id_to_resource_child_id_.end()) {
int child_id = provider_->CreateChild(
base::BindRepeating(&SurfaceAggregator::UnrefResources,
surface->client()),
surface->needs_sync_tokens());
surface_id_to_resource_child_id_[surface->surface_id()] = child_id;
return child_id;
} else {
return it->second;
}
}
bool SurfaceAggregator::IsSurfaceFrameIndexSameAsPrevious(
const Surface* surface) const {
auto it = previous_contained_surfaces_.find(surface->surface_id());
if (it != previous_contained_surfaces_.end()) {
uint64_t previous_index = it->second;
if (previous_index == surface->GetActiveFrameIndex())
return true;
}
return false;
}
gfx::Rect SurfaceAggregator::DamageRectForSurface(
const Surface* surface,
const RenderPass& source,
const gfx::Rect& full_rect) const {
if (IsSurfaceFrameIndexSameAsPrevious(surface))
return gfx::Rect();
auto it = previous_contained_surfaces_.find(surface->surface_id());
const SurfaceId& previous_surface_id = surface->previous_frame_surface_id();
if (surface->surface_id() != previous_surface_id) {
it = previous_contained_surfaces_.find(previous_surface_id);
}
if (it != previous_contained_surfaces_.end()) {
uint64_t previous_index = it->second;
if (previous_index == surface->GetActiveFrameIndex() - 1)
return source.damage_rect;
}
return full_rect;
}
gfx::Rect SurfaceAggregator::CalculateOccludingSurfaceDamageRect(
const DrawQuad* quad,
const gfx::Transform& parent_quad_to_root_target_transform) {
if (damage_rects_union_of_surfaces_on_top_.IsEmpty())
return gfx::Rect();
// Transform the quad to the parent root target space
// Note: this quad is on the child root render pass.
gfx::Transform transform(parent_quad_to_root_target_transform,
quad->shared_quad_state->quad_to_target_transform);
gfx::Rect surface_in_root_target_space =
cc::MathUtil::MapEnclosingClippedRect(transform, quad->visible_rect);
// damage_rects_union_of_surfaces_on_top_ is already in the parent root target
// space.
gfx::Rect occluding_damage_rect = damage_rects_union_of_surfaces_on_top_;
occluding_damage_rect.Intersect(surface_in_root_target_space);
return occluding_damage_rect;
}
// In CopyPasses(), surfaces are processed from top to bottom. Therefore, all
// surfaces on top has been added to damage_rects_union_of_surfaces_on_top_
// before this.
void SurfaceAggregator::UnionSurfaceDamageRectsOnTop(
const gfx::Rect& surface_rect,
const gfx::Transform& quad_to_root_target_transform,
const RenderPass* render_pass) {
DCHECK(!surface_rect.IsEmpty());
gfx::Rect damage_rect_in_root_target_space =
cc::MathUtil::MapEnclosingClippedRect(quad_to_root_target_transform,
surface_rect);
damage_rects_union_of_surfaces_on_top_.Union(
damage_rect_in_root_target_space);
}
// This is for underlay video power optimization.
// The purpose of this function is to calculate the occluding damage rect if
// there are elements on top of underlay. This damage rect is later saved in
// shared_quad_state->occluding_damage_rect and used by the overlay
// processor for damage rect optimization. This function is called once
// for each surface. It adds the damage rects of all surfaces to
// damage_rects_union_of_surfaces_on_top_. The occluding damage rect
// is then calculated based on this rect.
bool SurfaceAggregator::ProcessSurfaceOccludingDamage(
const Surface* surface,
const RenderPassList& render_pass_list,
const gfx::Transform& parent_target_transform,
const RenderPass* dest_pass,
gfx::Rect* occluding_damage_rect) {
if (!needs_surface_occluding_damage_rect_)
return false;
bool occluding_damage_rect_valid = false;
RenderPass* last_render_pass = render_pass_list.back().get();
gfx::Transform quad_to_root_target_transform = gfx::Transform(
dest_pass->transform_to_root_target, parent_target_transform);
// This occluding damage detection only works when there is only one quad
// in the current surface.
if (render_pass_list.size() == 1 && last_render_pass->quad_list.size() == 1) {
auto* quad = last_render_pass->quad_list.back();
*occluding_damage_rect = CalculateOccludingSurfaceDamageRect(
quad, quad_to_root_target_transform);
occluding_damage_rect_valid = true;
}
gfx::Rect surface_damage_rect;
if (RenderPassNeedsFullDamage(dest_pass)) {
surface_damage_rect = last_render_pass->output_rect;
} else {
surface_damage_rect = DamageRectForSurface(surface, *last_render_pass,
last_render_pass->output_rect);
}
// Add the current surface to the damage rect union if there is any damage.
// This should be done AFTER checking the occluding damage because the surface
// on top should not include its own surface.
if (!surface_damage_rect.IsEmpty()) {
UnionSurfaceDamageRectsOnTop(
surface_damage_rect, quad_to_root_target_transform, last_render_pass);
}
return occluding_damage_rect_valid;
}
bool SurfaceAggregator::RenderPassNeedsFullDamage(
const RenderPass* pass) const {
if (copy_request_passes_.count(pass->id) || pass->cache_render_pass ||
moved_pixel_passes_.count(pass->id)) {
return true;
} else {
return false;
}
}
// static
void SurfaceAggregator::UnrefResources(
base::WeakPtr<SurfaceClient> surface_client,
const std::vector<ReturnedResource>& resources) {
if (surface_client)
surface_client->UnrefResources(resources);
}
void SurfaceAggregator::HandleSurfaceQuad(
const SurfaceDrawQuad* surface_quad,
float parent_device_scale_factor,
const gfx::Transform& target_transform,
const ClipData& clip_rect,
RenderPass* dest_pass,
bool ignore_undamaged,
gfx::Rect* damage_rect_in_quad_space,
bool* damage_rect_in_quad_space_valid,
const RoundedCornerInfo& rounded_corner_info) {
SurfaceId primary_surface_id = surface_quad->surface_range.end();
// If there's no fallback surface ID available, then simply emit a
// SolidColorDrawQuad with the provided default background color. This
// can happen after a Viz process crash.
Surface* latest_surface =
manager_->GetLatestInFlightSurface(surface_quad->surface_range);
if (!latest_surface || !latest_surface->HasActiveFrame()) {
EmitDefaultBackgroundColorQuad(surface_quad, target_transform, clip_rect,
dest_pass, rounded_corner_info);
return;
}
if (latest_surface->surface_id() != primary_surface_id &&
!surface_quad->stretch_content_to_fill_bounds) {
const CompositorFrame& fallback_frame = latest_surface->GetActiveFrame();
gfx::Rect fallback_rect(latest_surface->GetActiveFrame().size_in_pixels());
float scale_ratio =
parent_device_scale_factor / fallback_frame.device_scale_factor();
fallback_rect =
gfx::ScaleToEnclosingRect(fallback_rect, scale_ratio, scale_ratio);
fallback_rect = gfx::IntersectRects(fallback_rect, surface_quad->rect);
EmitGutterQuadsIfNecessary(surface_quad->rect, fallback_rect,
surface_quad->shared_quad_state,
target_transform, clip_rect,
fallback_frame.metadata.root_background_color,
dest_pass, rounded_corner_info);
}
EmitSurfaceContent(latest_surface, parent_device_scale_factor,
surface_quad->shared_quad_state, surface_quad->rect,
surface_quad->visible_rect, target_transform, clip_rect,
surface_quad->stretch_content_to_fill_bounds, dest_pass,
ignore_undamaged, damage_rect_in_quad_space,
damage_rect_in_quad_space_valid, rounded_corner_info,
surface_quad->is_reflection, surface_quad->allow_merge);
}
void SurfaceAggregator::EmitSurfaceContent(
Surface* surface,
float parent_device_scale_factor,
const SharedQuadState* source_sqs,
const gfx::Rect& source_rect,
const gfx::Rect& source_visible_rect,
const gfx::Transform& target_transform,
const ClipData& clip_rect,
bool stretch_content_to_fill_bounds,
RenderPass* dest_pass,
bool ignore_undamaged,
gfx::Rect* damage_rect_in_quad_space,
bool* damage_rect_in_quad_space_valid,
const RoundedCornerInfo& rounded_corner_info,
bool is_reflection,
bool allow_merge) {
// If this surface's id is already in our referenced set then it creates
// a cycle in the graph and should be dropped.
SurfaceId surface_id = surface->surface_id();
if (referenced_surfaces_.count(surface_id))
return;
float layer_to_content_scale_x, layer_to_content_scale_y;
if (stretch_content_to_fill_bounds) {
// Stretches the surface contents to exactly fill the layer bounds,
// regardless of scale or aspect ratio differences.
layer_to_content_scale_x =
static_cast<float>(surface->GetActiveFrame().size_in_pixels().width()) /
source_rect.width();
layer_to_content_scale_y =
static_cast<float>(
surface->GetActiveFrame().size_in_pixels().height()) /
source_rect.height();
} else {
layer_to_content_scale_x = layer_to_content_scale_y =
surface->GetActiveFrame().device_scale_factor() /
parent_device_scale_factor;
}
gfx::Transform scaled_quad_to_target_transform(
source_sqs->quad_to_target_transform);
scaled_quad_to_target_transform.Scale(SK_MScalar1 / layer_to_content_scale_x,
SK_MScalar1 / layer_to_content_scale_y);
const CompositorFrame& frame = surface->GetActiveFrame();
TRACE_EVENT_WITH_FLOW2(
"viz,benchmark", "Graphics.Pipeline",
TRACE_ID_GLOBAL(frame.metadata.begin_frame_ack.trace_id),
TRACE_EVENT_FLAG_FLOW_IN | TRACE_EVENT_FLAG_FLOW_OUT, "step",
"SurfaceAggregation", "display_trace", display_trace_id_);
if (ignore_undamaged) {
gfx::Transform quad_to_target_transform(
target_transform, source_sqs->quad_to_target_transform);
*damage_rect_in_quad_space_valid = CalculateQuadSpaceDamageRect(
quad_to_target_transform, dest_pass->transform_to_root_target,
root_damage_rect_, damage_rect_in_quad_space);
if (*damage_rect_in_quad_space_valid &&
!damage_rect_in_quad_space->Intersects(source_visible_rect)) {
return;
}
}
// A map keyed by RenderPass id.
Surface::CopyRequestsMap copy_requests;
surface->TakeCopyOutputRequests(&copy_requests);
const RenderPassList& render_pass_list = frame.render_pass_list;
if (!valid_surfaces_.count(surface_id)) {
// As |copy_requests| goes out-of-scope, all copy requests in that container
// will auto-send an empty result upon destruction.
return;
}
referenced_surfaces_.insert(surface_id);
// TODO(vmpstr): provider check is a hack for unittests that don't set up a
// resource provider.
std::unordered_map<ResourceId, ResourceId> empty_map;
const auto& child_to_parent_map =
provider_ ? provider_->GetChildToParentMap(ChildIdForSurface(surface))
: empty_map;
gfx::Transform combined_transform = scaled_quad_to_target_transform;
combined_transform.ConcatTransform(target_transform);
// If the SurfaceDrawQuad is marked as being reflected and surface contents
// are going to be scaled then keep the RenderPass. This allows the reflected
// surface to be drawn with AA enabled for smooth scaling and preserves the
// original reflector scaling behaviour which scaled a TextureLayer.
bool reflected_and_scaled =
is_reflection &&
!scaled_quad_to_target_transform.IsIdentityOrTranslation();
// We cannot merge passes if de-jelly is being applied, as we must have a
// renderpass to skew.
bool merge_pass =
allow_merge && !reflected_and_scaled &&
base::IsApproximatelyEqual(source_sqs->opacity, 1.f, kOpacityEpsilon) &&
copy_requests.empty() && combined_transform.Preserves2dAxisAlignment() &&
CanMergeRoundedCorner(rounded_corner_info, *render_pass_list.back()) &&
source_sqs->de_jelly_delta_y == 0;
gfx::Rect occluding_damage_rect;
bool occluding_damage_rect_valid = ProcessSurfaceOccludingDamage(
surface, render_pass_list, combined_transform, dest_pass,
&occluding_damage_rect);
const RenderPassList& referenced_passes = render_pass_list;
// TODO(fsamuel): Move this to a separate helper function.
size_t passes_to_copy =
merge_pass ? referenced_passes.size() - 1 : referenced_passes.size();
for (size_t j = 0; j < passes_to_copy; ++j) {
const RenderPass& source = *referenced_passes[j];
size_t sqs_size = source.shared_quad_state_list.size();
size_t dq_size = source.quad_list.size();
std::unique_ptr<RenderPass> copy_pass(
RenderPass::Create(sqs_size, dq_size));
RenderPassId remapped_pass_id = RemapPassId(source.id, surface_id);
gfx::Rect output_rect = source.output_rect;
// TODO(ericrk): This is incorrect in the non de-jelly case as well, but we
// restrict the fix to de-jelly for merge safety. Implement a full fix.
// crbug.com/1016677
if (de_jelly_enabled_) {
if (referenced_passes[j] == render_pass_list.back()) {
DCHECK(!merge_pass);
// We are processing the root RenderPass. If this does not produce the
// full SurfaceDrawQuad, we will end up with errors in the
// !|merge_pass| path below. Expand the RenderPass.
gfx::Rect scaled_rect(gfx::ScaleToEnclosingRect(
source_rect, layer_to_content_scale_x, layer_to_content_scale_y));
output_rect.Union(scaled_rect);
}
}
if (max_texture_size_ > 0) {
output_rect.set_width(std::min(output_rect.width(), max_texture_size_));
output_rect.set_height(std::min(output_rect.height(), max_texture_size_));
}
copy_pass->SetAll(
remapped_pass_id, output_rect, output_rect,
source.transform_to_root_target, source.filters,
source.backdrop_filters, source.backdrop_filter_bounds,
output_color_space_.GetBlendingColorSpace(),
source.has_transparent_background, source.cache_render_pass,
source.has_damage_from_contributing_content, source.generate_mipmap);
MoveMatchingRequests(source.id, &copy_requests, &copy_pass->copy_requests);
// Contributing passes aggregated in to the pass list need to take the
// transform of the surface quad into account to update their transform to
// the root surface.
copy_pass->transform_to_root_target.ConcatTransform(
scaled_quad_to_target_transform);
copy_pass->transform_to_root_target.ConcatTransform(target_transform);
copy_pass->transform_to_root_target.ConcatTransform(
dest_pass->transform_to_root_target);
CopyQuadsToPass(source.quad_list, source.shared_quad_state_list,
surface->GetActiveFrame().device_scale_factor(),
child_to_parent_map, gfx::Transform(), {}, copy_pass.get(),
surface_id, RoundedCornerInfo(), occluding_damage_rect,
occluding_damage_rect_valid);
// If the render pass has copy requests, or should be cached, or has
// moving-pixel filters, or in a moving-pixel surface, we should damage the
// whole output rect so that we always drawn the full content. Otherwise, we
// might have incompleted copy request, or cached patially drawn render
// pass.
if (!RenderPassNeedsFullDamage(copy_pass.get())) {
gfx::Transform inverse_transform(gfx::Transform::kSkipInitialization);
if (copy_pass->transform_to_root_target.GetInverse(&inverse_transform)) {
gfx::Rect damage_rect_in_render_pass_space =
cc::MathUtil::ProjectEnclosingClippedRect(inverse_transform,
root_damage_rect_);
copy_pass->damage_rect.Intersect(damage_rect_in_render_pass_space);
}
}
if (copy_pass->has_damage_from_contributing_content)
contributing_content_damaged_passes_.insert(copy_pass->id);
dest_pass_list_->push_back(std::move(copy_pass));
}
gfx::Transform surface_transform = scaled_quad_to_target_transform;
surface_transform.ConcatTransform(target_transform);
const auto& last_pass = *render_pass_list.back();
// This will check if all the surface_quads (including child surfaces) has
// damage because HandleSurfaceQuad is a recursive call by calling
// CopyQuadsToPass in it.
dest_pass->has_damage_from_contributing_content |=
!DamageRectForSurface(surface, last_pass, last_pass.output_rect)
.IsEmpty();
if (merge_pass) {
// TODO(jamesr): Clean up last pass special casing.
const QuadList& quads = last_pass.quad_list;
// Intersect the transformed visible rect and the clip rect to create a
// smaller cliprect for the quad.
ClipData surface_quad_clip_rect = {
true, cc::MathUtil::MapEnclosingClippedRect(
source_sqs->quad_to_target_transform, source_visible_rect)};
if (source_sqs->is_clipped) {
surface_quad_clip_rect.rect.Intersect(source_sqs->clip_rect);
}
ClipData quads_clip =
CalculateClipRect(clip_rect, surface_quad_clip_rect, target_transform);
CopyQuadsToPass(quads, last_pass.shared_quad_state_list,
surface->GetActiveFrame().device_scale_factor(),
child_to_parent_map, surface_transform, quads_clip,
dest_pass, surface_id, rounded_corner_info,
occluding_damage_rect, occluding_damage_rect_valid);
} else {
auto* shared_quad_state = CopyAndScaleSharedQuadState(
source_sqs, scaled_quad_to_target_transform, target_transform,
gfx::ScaleToEnclosingRect(source_sqs->quad_layer_rect,
layer_to_content_scale_x,
layer_to_content_scale_y),
gfx::ScaleToEnclosingRect(source_sqs->visible_quad_layer_rect,
layer_to_content_scale_x,
layer_to_content_scale_y),
clip_rect, dest_pass, rounded_corner_info, occluding_damage_rect,
occluding_damage_rect_valid);
gfx::Rect scaled_rect(gfx::ScaleToEnclosingRect(
source_rect, layer_to_content_scale_x, layer_to_content_scale_y));
gfx::Rect scaled_visible_rect(
gfx::ScaleToEnclosingRect(source_visible_rect, layer_to_content_scale_x,
layer_to_content_scale_y));
auto* quad = dest_pass->CreateAndAppendDrawQuad<RenderPassDrawQuad>();
RenderPassId remapped_pass_id = RemapPassId(last_pass.id, surface_id);
quad->SetNew(shared_quad_state, scaled_rect, scaled_visible_rect,
remapped_pass_id, 0, gfx::RectF(), gfx::Size(),
gfx::Vector2dF(), gfx::PointF(), gfx::RectF(scaled_rect),
/*force_anti_aliasing_off=*/false,
/* backdrop_filter_quality*/ 1.0f);
}
referenced_surfaces_.erase(surface_id);
}
void SurfaceAggregator::EmitDefaultBackgroundColorQuad(
const SurfaceDrawQuad* surface_quad,
const gfx::Transform& target_transform,
const ClipData& clip_rect,
RenderPass* dest_pass,
const RoundedCornerInfo& rounded_corner_info) {
// The primary surface is unavailable and there is no fallback
// surface specified so create a SolidColorDrawQuad with the default
// background color.
SkColor background_color = surface_quad->default_background_color;
auto* shared_quad_state =
CopySharedQuadState(surface_quad->shared_quad_state, target_transform,
clip_rect, dest_pass, rounded_corner_info,
/*occluding_damage_rect*/ gfx::Rect(),
/*occluding_damage_rect_valid*/ false);
auto* solid_color_quad =
dest_pass->CreateAndAppendDrawQuad<SolidColorDrawQuad>();
solid_color_quad->SetNew(shared_quad_state, surface_quad->rect,
surface_quad->visible_rect, background_color, false);
if (needs_surface_occluding_damage_rect_) {
gfx::Transform transform(
target_transform,
surface_quad->shared_quad_state->quad_to_target_transform);
transform.ConcatTransform(dest_pass->transform_to_root_target);
UnionSurfaceDamageRectsOnTop(surface_quad->rect, transform, dest_pass);
}
}
void SurfaceAggregator::EmitGutterQuadsIfNecessary(
const gfx::Rect& primary_rect,
const gfx::Rect& fallback_rect,
const SharedQuadState* primary_shared_quad_state,
const gfx::Transform& target_transform,
const ClipData& clip_rect,
SkColor background_color,
RenderPass* dest_pass,
const RoundedCornerInfo& rounded_corner_info) {
bool has_transparent_background = background_color == SK_ColorTRANSPARENT;
// If the fallback Surface's active CompositorFrame has a non-transparent
// background then compute gutter.
if (has_transparent_background)
return;
if (fallback_rect.width() < primary_rect.width()) {
// The right gutter also includes the bottom-right corner, if necessary.
gfx::Rect right_gutter_rect(fallback_rect.right(), primary_rect.y(),
primary_rect.width() - fallback_rect.width(),
primary_rect.height());
SharedQuadState* shared_quad_state = CopyAndScaleSharedQuadState(
primary_shared_quad_state,
primary_shared_quad_state->quad_to_target_transform, target_transform,
right_gutter_rect, right_gutter_rect, clip_rect, dest_pass,
rounded_corner_info,
/*occluding_damage_rect*/ gfx::Rect(),
/*occluding_damage_rect_valid*/ false);
auto* right_gutter =
dest_pass->CreateAndAppendDrawQuad<SolidColorDrawQuad>();
right_gutter->SetNew(shared_quad_state, right_gutter_rect,
right_gutter_rect, background_color, false);
}
if (fallback_rect.height() < primary_rect.height()) {
gfx::Rect bottom_gutter_rect(
primary_rect.x(), fallback_rect.bottom(), fallback_rect.width(),
primary_rect.height() - fallback_rect.height());
SharedQuadState* shared_quad_state = CopyAndScaleSharedQuadState(
primary_shared_quad_state,
primary_shared_quad_state->quad_to_target_transform, target_transform,
bottom_gutter_rect, bottom_gutter_rect, clip_rect, dest_pass,
rounded_corner_info,
/*occluding_damage_rect*/ gfx::Rect(),
/*occluding_damage_rect_valid*/ false);
auto* bottom_gutter =
dest_pass->CreateAndAppendDrawQuad<SolidColorDrawQuad>();
bottom_gutter->SetNew(shared_quad_state, bottom_gutter_rect,
bottom_gutter_rect, background_color, false);
}
}
void SurfaceAggregator::AddColorConversionPass() {
if (dest_pass_list_->empty())
return;
auto* root_render_pass = dest_pass_list_->back().get();
if (root_render_pass->color_space == output_color_space_)
return;
gfx::Rect output_rect = root_render_pass->output_rect;
CHECK(root_render_pass->transform_to_root_target == gfx::Transform());
if (!color_conversion_render_pass_id_)
color_conversion_render_pass_id_ = next_render_pass_id_++;
auto color_conversion_pass = RenderPass::Create(1, 1);
color_conversion_pass->SetNew(color_conversion_render_pass_id_, output_rect,
root_render_pass->damage_rect,
root_render_pass->transform_to_root_target);
color_conversion_pass->has_transparent_background =
root_render_pass->has_transparent_background;
color_conversion_pass->color_space = output_color_space_;
auto* shared_quad_state =
color_conversion_pass->CreateAndAppendSharedQuadState();
shared_quad_state->SetAll(
/*quad_to_target_transform=*/gfx::Transform(),
/*quad_layer_rect=*/output_rect,
/*visible_quad_layer_rect=*/output_rect,
/*rounded_corner_bounds=*/gfx::RRectF(),
/*clip_rect=*/gfx::Rect(),
/*is_clipped=*/false, /*are_contents_opaque=*/false, /*opacity=*/1.f,
/*blend_mode=*/SkBlendMode::kSrcOver, /*sorting_context_id=*/0);
auto* quad =
color_conversion_pass->CreateAndAppendDrawQuad<RenderPassDrawQuad>();
quad->SetNew(shared_quad_state, output_rect, output_rect,
root_render_pass->id, 0, gfx::RectF(), gfx::Size(),
gfx::Vector2dF(), gfx::PointF(), gfx::RectF(output_rect),
/*force_anti_aliasing_off=*/false,
/*backdrop_filter_quality*/ 1.0f);
dest_pass_list_->push_back(std::move(color_conversion_pass));
}
void SurfaceAggregator::AddDisplayTransformPass() {
if (dest_pass_list_->empty())
return;
auto* root_render_pass = dest_pass_list_->back().get();
gfx::Rect output_rect = root_render_pass->output_rect;
DCHECK(root_render_pass->transform_to_root_target == root_surface_transform_);
if (!display_transform_render_pass_id_)
display_transform_render_pass_id_ = next_render_pass_id_++;
auto display_transform_pass = RenderPass::Create(1, 1);
display_transform_pass->SetNew(
display_transform_render_pass_id_,
cc::MathUtil::MapEnclosedRectWith2dAxisAlignedTransform(
root_surface_transform_, root_render_pass->output_rect),
cc::MathUtil::MapEnclosedRectWith2dAxisAlignedTransform(
root_surface_transform_, root_render_pass->damage_rect),
gfx::Transform());
display_transform_pass->color_space = root_render_pass->color_space;
bool are_contents_opaque = true;
for (const auto* sqs : root_render_pass->shared_quad_state_list) {
if (!sqs->are_contents_opaque) {
are_contents_opaque = false;
break;
}
}
auto* shared_quad_state =
display_transform_pass->CreateAndAppendSharedQuadState();
shared_quad_state->SetAll(
/*quad_to_target_transform=*/root_surface_transform_,
/*quad_layer_rect=*/output_rect,
/*visible_quad_layer_rect=*/output_rect,
/*rounded_corner_bounds=*/gfx::RRectF(),
/*clip_rect=*/gfx::Rect(),
/*is_clipped=*/false, are_contents_opaque, /*opacity=*/1.f,
/*blend_mode=*/SkBlendMode::kSrcOver, /*sorting_context_id=*/0);
auto* quad =
display_transform_pass->CreateAndAppendDrawQuad<RenderPassDrawQuad>();
quad->SetNew(shared_quad_state, output_rect, output_rect,
root_render_pass->id, 0, gfx::RectF(), gfx::Size(),
gfx::Vector2dF(), gfx::PointF(), gfx::RectF(output_rect),
/*force_anti_aliasing_off=*/false,
/*backdrop_filter_quality*/ 1.0f);
dest_pass_list_->push_back(std::move(display_transform_pass));
}
SharedQuadState* SurfaceAggregator::CopySharedQuadState(
const SharedQuadState* source_sqs,
const gfx::Transform& target_transform,
const ClipData& clip_rect,
RenderPass* dest_render_pass,
const RoundedCornerInfo& rounded_corner_info,
const gfx::Rect& occluding_damage_rect,
bool occluding_damage_rect_valid) {
return CopyAndScaleSharedQuadState(
source_sqs, source_sqs->quad_to_target_transform, target_transform,
source_sqs->quad_layer_rect, source_sqs->visible_quad_layer_rect,
clip_rect, dest_render_pass, rounded_corner_info, occluding_damage_rect,
occluding_damage_rect_valid);
}
SharedQuadState* SurfaceAggregator::CopyAndScaleSharedQuadState(
const SharedQuadState* source_sqs,
const gfx::Transform& scaled_quad_to_target_transform,
const gfx::Transform& target_transform,
const gfx::Rect& quad_layer_rect,
const gfx::Rect& visible_quad_layer_rect,
const ClipData& clip_rect,
RenderPass* dest_render_pass,
const RoundedCornerInfo& rounded_corner_info,
const gfx::Rect& occluding_damage_rect,
bool occluding_damage_rect_valid) {
auto* shared_quad_state = dest_render_pass->CreateAndAppendSharedQuadState();
ClipData new_clip_rect = CalculateClipRect(
clip_rect, {source_sqs->is_clipped, source_sqs->clip_rect},
target_transform);
// target_transform contains any transformation that may exist
// between the context that these quads are being copied from (i.e. the
// surface's draw transform when aggregated from within a surface) to the
// target space of the pass. This will be identity except when copying the
// root draw pass from a surface into a pass when the surface draw quad's
// transform is not identity.
gfx::Transform new_transform = scaled_quad_to_target_transform;
new_transform.ConcatTransform(target_transform);
shared_quad_state->SetAll(
new_transform, quad_layer_rect, visible_quad_layer_rect,
rounded_corner_info.bounds, new_clip_rect.rect, new_clip_rect.is_clipped,
source_sqs->are_contents_opaque, source_sqs->opacity,
source_sqs->blend_mode, source_sqs->sorting_context_id);
shared_quad_state->is_fast_rounded_corner =
rounded_corner_info.is_fast_rounded_corner;
if (occluding_damage_rect_valid) {
shared_quad_state->occluding_damage_rect = occluding_damage_rect;
}
shared_quad_state->de_jelly_delta_y = source_sqs->de_jelly_delta_y;
return shared_quad_state;
}
void SurfaceAggregator::CopyQuadsToPass(
const QuadList& source_quad_list,
const SharedQuadStateList& source_shared_quad_state_list,
float parent_device_scale_factor,
const std::unordered_map<ResourceId, ResourceId>& child_to_parent_map,
const gfx::Transform& target_transform,
const ClipData& clip_rect,
RenderPass* dest_pass,
const SurfaceId& surface_id,
const RoundedCornerInfo& parent_rounded_corner_info,
const gfx::Rect& occluding_damage_rect,
bool occluding_damage_rect_valid) {
const SharedQuadState* last_copied_source_shared_quad_state = nullptr;
// If the current frame has copy requests or cached render passes, then
// aggregate the entire thing, as otherwise parts of the copy requests may be
// ignored and we could cache partially drawn render pass.
const bool ignore_undamaged =
aggregate_only_damaged_ && !has_copy_requests_ &&
!has_cached_render_passes_ && !moved_pixel_passes_.count(dest_pass->id);
// Damage rect in the quad space of the current shared quad state.
// TODO(jbauman): This rect may contain unnecessary area if
// transform isn't axis-aligned.
gfx::Rect damage_rect_in_quad_space;
bool damage_rect_in_quad_space_valid = false;
#if DCHECK_IS_ON()
// If quads have come in with SharedQuadState out of order, or when quads have
// invalid SharedQuadState pointer, it should DCHECK.
auto sqs_iter = source_shared_quad_state_list.cbegin();
for (auto* quad : source_quad_list) {
while (sqs_iter != source_shared_quad_state_list.cend() &&
quad->shared_quad_state != *sqs_iter) {
++sqs_iter;
}
DCHECK(sqs_iter != source_shared_quad_state_list.cend());
}
#endif
RoundedCornerInfo new_rounded_corner_info = parent_rounded_corner_info;
for (auto* quad : source_quad_list) {
// Both cannot be set at once. If this happens then a surface is being
// merged when it should not.
DCHECK(quad->shared_quad_state->rounded_corner_bounds.IsEmpty() ||
parent_rounded_corner_info.bounds.IsEmpty());
if (quad->material == DrawQuad::Material::kSurfaceContent) {
const auto* surface_quad = SurfaceDrawQuad::MaterialCast(quad);
// HandleSurfaceQuad may add other shared quad state, so reset the
// current data.
last_copied_source_shared_quad_state = nullptr;
if (!surface_quad->surface_range.end().is_valid())
continue;
if (parent_rounded_corner_info.bounds.IsEmpty()) {
new_rounded_corner_info = RoundedCornerInfo(
quad->shared_quad_state->rounded_corner_bounds,
quad->shared_quad_state->is_fast_rounded_corner, target_transform);
}
HandleSurfaceQuad(
surface_quad, parent_device_scale_factor, target_transform, clip_rect,
dest_pass, ignore_undamaged, &damage_rect_in_quad_space,
&damage_rect_in_quad_space_valid, new_rounded_corner_info);
} else {
if (quad->shared_quad_state != last_copied_source_shared_quad_state) {
if (parent_rounded_corner_info.bounds.IsEmpty()) {
new_rounded_corner_info =
RoundedCornerInfo(quad->shared_quad_state->rounded_corner_bounds,
quad->shared_quad_state->is_fast_rounded_corner,
target_transform);
}
SharedQuadState* dest_shared_quad_state = CopySharedQuadState(
quad->shared_quad_state, target_transform, clip_rect, dest_pass,
new_rounded_corner_info, occluding_damage_rect,
occluding_damage_rect_valid);
if (de_jelly_enabled_) {
// If a surface is being drawn for a second time, clear our
// |de_jelly_delta_y|, as de-jelly is only needed the first time
// a surface draws.
if (!new_surfaces_.count(surface_id))
dest_shared_quad_state->de_jelly_delta_y = 0.0f;
}
last_copied_source_shared_quad_state = quad->shared_quad_state;
if (ignore_undamaged) {
damage_rect_in_quad_space_valid = CalculateQuadSpaceDamageRect(
dest_shared_quad_state->quad_to_target_transform,
dest_pass->transform_to_root_target, root_damage_rect_,
&damage_rect_in_quad_space);
}
}
if (ignore_undamaged) {
if (damage_rect_in_quad_space_valid &&
!damage_rect_in_quad_space.Intersects(quad->visible_rect))
continue;
}
DrawQuad* dest_quad;
if (quad->material == DrawQuad::Material::kRenderPass) {
const auto* pass_quad = RenderPassDrawQuad::MaterialCast(quad);
RenderPassId original_pass_id = pass_quad->render_pass_id;
RenderPassId remapped_pass_id =
RemapPassId(original_pass_id, surface_id);
// If the RenderPassDrawQuad is referring to other render pass with the
// |has_damage_from_contributing_content| set on it, then the dest_pass
// should have the flag set on it as well.
if (contributing_content_damaged_passes_.count(remapped_pass_id))
dest_pass->has_damage_from_contributing_content = true;
dest_quad = dest_pass->CopyFromAndAppendRenderPassDrawQuad(
pass_quad, remapped_pass_id);
} else if (quad->material == DrawQuad::Material::kTextureContent) {
const auto* texture_quad = TextureDrawQuad::MaterialCast(quad);
if (texture_quad->secure_output_only &&
(!output_is_secure_ || copy_request_passes_.count(dest_pass->id))) {
auto* solid_color_quad =
dest_pass->CreateAndAppendDrawQuad<SolidColorDrawQuad>();
solid_color_quad->SetNew(dest_pass->shared_quad_state_list.back(),
quad->rect, quad->visible_rect,
SK_ColorBLACK, false);
dest_quad = solid_color_quad;
} else {
dest_quad = dest_pass->CopyFromAndAppendDrawQuad(quad);
}
} else {
dest_quad = dest_pass->CopyFromAndAppendDrawQuad(quad);
}
if (!child_to_parent_map.empty()) {
for (ResourceId& resource_id : dest_quad->resources) {
auto it = child_to_parent_map.find(resource_id);
DCHECK(it != child_to_parent_map.end());
DCHECK_EQ(it->first, resource_id);
ResourceId remapped_id = it->second;
resource_id = remapped_id;
}
}
}
}
}
void SurfaceAggregator::CopyPasses(const CompositorFrame& frame,
Surface* surface) {
// The root surface is allowed to have copy output requests, so grab them
// off its render passes. This map contains a set of CopyOutputRequests
// keyed by each RenderPass id.
Surface::CopyRequestsMap copy_requests;
surface->TakeCopyOutputRequests(&copy_requests);
const auto& source_pass_list = frame.render_pass_list;
DCHECK(valid_surfaces_.count(surface->surface_id()));
if (!valid_surfaces_.count(surface->surface_id()))
return;
// TODO(vmpstr): provider check is a hack for unittests that don't set up a
// resource provider.
std::unordered_map<ResourceId, ResourceId> empty_map;
const auto& child_to_parent_map =
provider_ ? provider_->GetChildToParentMap(ChildIdForSurface(surface))
: empty_map;
const gfx::Transform surface_transform =
IsRootSurface(surface) ? root_surface_transform_ : gfx::Transform();
gfx::Rect occluding_damage_rect;
bool occluding_damage_rect_valid = ProcessSurfaceOccludingDamage(
surface, source_pass_list, surface_transform,
source_pass_list.back().get(), &occluding_damage_rect);
bool apply_surface_transform_to_root_pass = true;
for (size_t i = 0; i < source_pass_list.size(); ++i) {
const auto& source = *source_pass_list[i];
const bool is_root_pass = (i == source_pass_list.size() - 1);
size_t sqs_size = source.shared_quad_state_list.size();
size_t dq_size = source.quad_list.size();
auto copy_pass = RenderPass::Create(sqs_size, dq_size);
MoveMatchingRequests(source.id, &copy_requests, &copy_pass->copy_requests);
// We add an additional render pass for the transform if the root render
// pass has any copy requests.
apply_surface_transform_to_root_pass =
is_root_pass &&
(copy_pass->copy_requests.empty() || surface_transform.IsIdentity());
RenderPassId remapped_pass_id =
RemapPassId(source.id, surface->surface_id());
gfx::Rect output_rect = source.output_rect;
gfx::Rect damage_rect = source.output_rect;
gfx::Transform transform_to_root_target = source.transform_to_root_target;
if (apply_surface_transform_to_root_pass) {
// If we don't need an additional render pass to apply the surface
// transform, adjust the root pass's rects to account for it.
output_rect = cc::MathUtil::MapEnclosedRectWith2dAxisAlignedTransform(
surface_transform, output_rect);
damage_rect = cc::MathUtil::MapEnclosedRectWith2dAxisAlignedTransform(
surface_transform, damage_rect);
} else {
// For the non-root render passes, the transform to root target needs to
// be adjusted to include the root surface transform. This is also true if
// we will be adding another render pass for the surface transform, in
// which this will no longer be the root.
transform_to_root_target =
gfx::Transform(surface_transform, source.transform_to_root_target);
}
copy_pass->SetAll(
remapped_pass_id, output_rect, damage_rect, transform_to_root_target,
source.filters, source.backdrop_filters, source.backdrop_filter_bounds,
output_color_space_.GetBlendingColorSpace(),
source.has_transparent_background, source.cache_render_pass,
source.has_damage_from_contributing_content, source.generate_mipmap);
CopyQuadsToPass(source.quad_list, source.shared_quad_state_list,
frame.device_scale_factor(), child_to_parent_map,
apply_surface_transform_to_root_pass ? surface_transform
: gfx::Transform(),
{}, copy_pass.get(), surface->surface_id(),
RoundedCornerInfo(), occluding_damage_rect,
occluding_damage_rect_valid);
// If the render pass has copy requests, or should be cached, or has
// moving-pixel filters, or in a moving-pixel surface, we should damage the
// whole output rect so that we always drawn the full content. Otherwise, we
// might have incompleted copy request, or cached patially drawn render
// pass.
if (!RenderPassNeedsFullDamage(copy_pass.get())) {
gfx::Transform inverse_transform(gfx::Transform::kSkipInitialization);
if (copy_pass->transform_to_root_target.GetInverse(&inverse_transform)) {
gfx::Rect damage_rect_in_render_pass_space =
cc::MathUtil::ProjectEnclosingClippedRect(inverse_transform,
root_damage_rect_);
copy_pass->damage_rect.Intersect(damage_rect_in_render_pass_space);
}
}
if (copy_pass->has_damage_from_contributing_content)
contributing_content_damaged_passes_.insert(copy_pass->id);
dest_pass_list_->push_back(std::move(copy_pass));
}
if (!apply_surface_transform_to_root_pass)
AddDisplayTransformPass();
}
void SurfaceAggregator::ProcessAddedAndRemovedSurfaces() {
for (const auto& surface : previous_contained_surfaces_) {
if (!contained_surfaces_.count(surface.first))
// Release resources of removed surface.
ReleaseResources(surface.first);
}
}
void SurfaceAggregator::FindChildSurfaces(
SurfaceId surface_id,
base::flat_map<RenderPassId, RenderPassMapEntry>* render_pass_map,
RenderPassMapEntry* current_pass_entry,
const gfx::Transform& transform_to_root_target,
base::flat_map<SurfaceRange, ChildSurfaceInfo>* child_surfaces,
gfx::Rect* pixel_moving_backdrop_filters_rect) {
if (current_pass_entry->is_visited) {
// This means that this render pass is an ancestor of itself. This is not
// supported. Stop processing the render pass again.
return;
}
base::AutoReset<bool> reset_is_visited(&current_pass_entry->is_visited, true);
RenderPass* render_pass = current_pass_entry->render_pass;
if (current_pass_entry->has_pixel_moving_backdrop_filter) {
// If the render pass has a backdrop filter that moves pixels, its entire
// bounds, with proper transform applied, should be added to the damage
// rect.
pixel_moving_backdrop_filters_rect->Union(
cc::MathUtil::MapEnclosingClippedRect(transform_to_root_target,
render_pass->output_rect));
}
RenderPassId remapped_pass_id = RemapPassId(render_pass->id, surface_id);
bool has_pixel_moving_filter =
render_pass->filters.HasFilterThatMovesPixels();
if (has_pixel_moving_filter)
moved_pixel_passes_.insert(remapped_pass_id);
bool in_moved_pixel_pass =
has_pixel_moving_filter ||
base::Contains(moved_pixel_passes_, remapped_pass_id);
for (auto* quad : render_pass->quad_list) {
if (quad->material == DrawQuad::Material::kSurfaceContent) {
// A child surface has been found. Add necessary info from this surface to
// the set of child surfaces that can be used to update damage rect for
// the parent surface. If this child surface has been visited previously,
// we only need to update |has_moved_pixels| and add the transform
// corresponding to this visit; rest of the info would remain the same.
const auto* surface_quad = SurfaceDrawQuad::MaterialCast(quad);
auto it = child_surfaces->find(surface_quad->surface_range);
if (it == child_surfaces->end()) {
auto insert_pair = child_surfaces->emplace(
std::piecewise_construct,
std::forward_as_tuple(surface_quad->surface_range),
std::forward_as_tuple(
remapped_pass_id,
surface_quad->shared_quad_state->quad_to_target_transform,
surface_quad->rect,
surface_quad->stretch_content_to_fill_bounds,
surface_quad->shared_quad_state->is_clipped,
surface_quad->shared_quad_state->clip_rect));
DCHECK(insert_pair.second);
it = insert_pair.first;
}
auto& child_surface_info = it->second;
if (in_moved_pixel_pass)
child_surface_info.has_moved_pixels = true;
child_surface_info.transforms_to_root_target.push_back(
transform_to_root_target);
} else if (quad->material == DrawQuad::Material::kRenderPass) {
// A child render pass has been found. Find its child surfaces
// recursively.
const auto* render_pass_quad = RenderPassDrawQuad::MaterialCast(quad);
RenderPassId child_pass_id = render_pass_quad->render_pass_id;
RenderPassId remapped_child_pass_id =
RemapPassId(child_pass_id, surface_id);
if (in_moved_pixel_pass)
moved_pixel_passes_.insert(remapped_child_pass_id);
auto child_pass_it = render_pass_map->find(child_pass_id);
DCHECK(child_pass_it != render_pass_map->end());
RenderPassMapEntry& child_pass_entry = child_pass_it->second;
// TODO(crbug/1011042): Here, we used to set |in_moved_pixel_pass| to true
// if the child render pass has a pixel-moving backdrop filter. This
// behavior was added in r687426 to fix another problem, but caused a huge
// performance issue in some cases that enabled background blur, by
// expanding the damage rect unnecessarily to the entire screen
// (crbug/1008740). This is removed now, but a proper fix for the
// pixel-moving backdrop filter should be implemented.
render_pass_dependencies_[remapped_pass_id].insert(
remapped_child_pass_id);
FindChildSurfaces(
surface_id, render_pass_map, &child_pass_entry,
gfx::Transform(
transform_to_root_target,
render_pass_quad->shared_quad_state->quad_to_target_transform),
child_surfaces, pixel_moving_backdrop_filters_rect);
}
}
}
// Walk the Surface tree from surface_id. Validate the resources of the current
// surface and its descendants, check if there are any copy requests, and
// return the combined damage rect.
gfx::Rect SurfaceAggregator::PrewalkTree(Surface* surface,
bool in_moved_pixel_surface,
int parent_pass_id,
bool will_draw,
PrewalkResult* result) {
if (referenced_surfaces_.count(surface->surface_id()))
return gfx::Rect();
contained_surfaces_[surface->surface_id()] = surface->GetActiveFrameIndex();
LocalSurfaceId& local_surface_id =
contained_frame_sinks_[surface->surface_id().frame_sink_id()];
local_surface_id =
std::max(surface->surface_id().local_surface_id(), local_surface_id);
if (!surface->HasActiveFrame())
return gfx::Rect();
const CompositorFrame& frame = surface->GetActiveFrame();
int child_id = 0;
// TODO(jbauman): hack for unit tests that don't set up rp
if (provider_) {
child_id = ChildIdForSurface(surface);
surface->RefResources(frame.resource_list);
provider_->ReceiveFromChild(child_id, frame.resource_list);
}
RenderPassId remapped_pass_id =
RemapPassId(frame.render_pass_list.back()->id, surface->surface_id());
if (in_moved_pixel_surface)
moved_pixel_passes_.insert(remapped_pass_id);
if (parent_pass_id)
render_pass_dependencies_[parent_pass_id].insert(remapped_pass_id);
const gfx::Transform& root_pass_transform =
IsRootSurface(surface) ? root_surface_transform_ : gfx::Transform();
base::flat_map<RenderPassId, RenderPassMapEntry> render_pass_map =
GenerateRenderPassMap(frame.render_pass_list, IsRootSurface(surface));
auto root_pass_it = render_pass_map.find(frame.render_pass_list.back()->id);
DCHECK(root_pass_it != render_pass_map.end());
RenderPassMapEntry& root_pass_entry = root_pass_it->second;
base::flat_map<SurfaceRange, ChildSurfaceInfo> child_surfaces;
gfx::Rect pixel_moving_backdrop_filters_rect;
FindChildSurfaces(surface->surface_id(), &render_pass_map, &root_pass_entry,
root_pass_transform, &child_surfaces,
&pixel_moving_backdrop_filters_rect);
std::vector<ResourceId> referenced_resources;
referenced_resources.reserve(frame.resource_list.size());
bool invalid_frame = false;
if (provider_) {
const auto& child_to_parent_map = provider_->GetChildToParentMap(child_id);
for (const auto& render_pass : base::Reversed(frame.render_pass_list)) {
for (auto* quad : render_pass->quad_list) {
for (ResourceId resource_id : quad->resources) {
if (!child_to_parent_map.count(resource_id)) {
invalid_frame = true;
break;
}
referenced_resources.push_back(resource_id);
}
}
}
}
if (invalid_frame)
return gfx::Rect();
valid_surfaces_.insert(surface->surface_id());
ResourceIdSet resource_set(std::move(referenced_resources));
if (provider_)
provider_->DeclareUsedResourcesFromChild(child_id, resource_set);
RenderPass* last_pass = frame.render_pass_list.back().get();
gfx::Rect full_damage = last_pass->output_rect;
gfx::Rect damage_rect =
DamageRectForSurface(surface, *last_pass, full_damage);
damage_rect = cc::MathUtil::MapEnclosedRectWith2dAxisAlignedTransform(
root_pass_transform, damage_rect);
// Avoid infinite recursion by adding current surface to
// |referenced_surfaces_|.
referenced_surfaces_.insert(surface->surface_id());
for (const auto& child_surface_info_pair : child_surfaces) {
auto& child_surface_range = child_surface_info_pair.first;
auto& child_surface_info = child_surface_info_pair.second;
// TODO(fsamuel): Consider caching this value somewhere so that
// HandleSurfaceQuad doesn't need to call it again.
Surface* child_surface =
manager_->GetLatestInFlightSurface(child_surface_range);
// If the primary surface is not available then we assume the damage is
// the full size of the SurfaceDrawQuad because we might need to introduce
// gutter.
gfx::Rect child_surface_damage;
if (!child_surface ||
child_surface->surface_id() != child_surface_range.end()) {
child_surface_damage = child_surface_info.quad_rect;
}
if (child_surface) {
if (child_surface_info.stretch_content_to_fill_bounds) {
// Scale up the damage_quad generated by the child_surface to fit
// the containing quad_rect.
gfx::Rect child_rect =
PrewalkTree(child_surface, child_surface_info.has_moved_pixels,
child_surface_info.parent_pass_id, will_draw, result);
if (child_surface->size_in_pixels().GetCheckedArea().ValueOrDefault(0) >
0) {
float y_scale =
static_cast<float>(child_surface_info.quad_rect.height()) /
child_surface->size_in_pixels().height();
float x_scale =
static_cast<float>(child_surface_info.quad_rect.width()) /
child_surface->size_in_pixels().width();
child_surface_damage.Union(
gfx::ScaleToEnclosingRect(child_rect, x_scale, y_scale));
}
} else {
child_surface_damage.Union(
PrewalkTree(child_surface, child_surface_info.has_moved_pixels,
child_surface_info.parent_pass_id, will_draw, result));
}
}
if (child_surface_damage.IsEmpty())
continue;
if (child_surface_info.has_moved_pixels) {
// Areas outside the rect hit by target_to_surface_transform may be
// modified if there is a filter that moves pixels.
damage_rect = full_damage;
continue;
}
// Add the child surface damage rect to the parent surface damage rect. The
// child surface damage rect is first transformed to the parent surface
// coordinate space. There would be multiple transforms for a child surface
// if it is embedded multiple times which means its damage rect should be
// added multiple times.
for (const auto& transform_to_root_target :
child_surface_info.transforms_to_root_target) {
gfx::Transform target_to_surface_transform(
transform_to_root_target,
child_surface_info.quad_to_target_transform);
gfx::Rect child_surface_damage_in_root_target_space =
cc::MathUtil::MapEnclosingClippedRect(target_to_surface_transform,
child_surface_damage);
if (child_surface_info.is_clipped) {
gfx::Rect clip_rect_in_root_target_space =
cc::MathUtil::MapEnclosingClippedRect(transform_to_root_target,
child_surface_info.clip_rect);
child_surface_damage_in_root_target_space.Intersect(
clip_rect_in_root_target_space);
}
damage_rect.Union(child_surface_damage_in_root_target_space);
}
}
if (!damage_rect.IsEmpty()) {
// The following call can cause one or more copy requests to be added to the
// Surface. Therefore, no code before this point should have assumed
// anything about the presence or absence of copy requests after this point.
// The damage reported to the surface is in pre-display transform space
// since it is used by clients which are not aware of the display transform.
gfx::Transform inverse(gfx::Transform::kSkipInitialization);
bool inverted = root_pass_transform.GetInverse(&inverse);
DCHECK(inverted);
surface->NotifyAggregatedDamage(
cc::MathUtil::MapEnclosedRectWith2dAxisAlignedTransform(inverse,
damage_rect),
expected_display_time_);
}
// If any CopyOutputRequests were made at FrameSink level, make sure we grab
// them too.
surface->TakeCopyOutputRequestsFromClient();
if (de_jelly_enabled_ && surface->HasUndrawnActiveFrame())
new_surfaces_.insert(surface->surface_id());
if (will_draw)
surface->OnWillBeDrawn();
for (const SurfaceRange& surface_range : frame.metadata.referenced_surfaces) {
damage_ranges_[surface_range.end().frame_sink_id()].push_back(
surface_range);
if (surface_range.HasDifferentFrameSinkIds()) {
damage_ranges_[surface_range.start()->frame_sink_id()].push_back(
surface_range);
}
}
for (const SurfaceId& surface_id : surface->active_referenced_surfaces()) {
if (!contained_surfaces_.count(surface_id)) {
result->undrawn_surfaces.insert(surface_id);
Surface* undrawn_surface = manager_->GetSurfaceForId(surface_id);
if (undrawn_surface)
PrewalkTree(undrawn_surface, false, 0, false /* will_draw */, result);
}
}
for (const auto& render_pass : frame.render_pass_list) {
if (!render_pass->copy_requests.empty()) {
RenderPassId remapped_pass_id =
RemapPassId(render_pass->id, surface->surface_id());
copy_request_passes_.insert(remapped_pass_id);
}
if (render_pass->cache_render_pass)
has_cached_render_passes_ = true;
}
referenced_surfaces_.erase(surface->surface_id());
if (!damage_rect.IsEmpty() && frame.metadata.may_contain_video)
result->may_contain_video = true;
if (damage_rect.Intersects(pixel_moving_backdrop_filters_rect))
damage_rect.Union(pixel_moving_backdrop_filters_rect);
return damage_rect;
}
void SurfaceAggregator::CopyUndrawnSurfaces(PrewalkResult* prewalk_result) {
// undrawn_surfaces are Surfaces that were identified by prewalk as being
// referenced by a drawn Surface, but aren't contained in a SurfaceDrawQuad.
// They need to be iterated over to ensure that any copy requests on them
// (or on Surfaces they reference) are executed.
std::vector<SurfaceId> surfaces_to_copy(
prewalk_result->undrawn_surfaces.begin(),
prewalk_result->undrawn_surfaces.end());
DCHECK(referenced_surfaces_.empty());
for (size_t i = 0; i < surfaces_to_copy.size(); i++) {
SurfaceId surface_id = surfaces_to_copy[i];
Surface* surface = manager_->GetSurfaceForId(surface_id);
if (!surface)
continue;
if (!surface->HasActiveFrame())
continue;
if (!surface->HasCopyOutputRequests()) {
// Children are not necessarily included in undrawn_surfaces (because
// they weren't referenced directly from a drawn surface), but may have
// copy requests, so make sure to check them as well.
for (const SurfaceId& child_id : surface->active_referenced_surfaces()) {
// Don't iterate over the child Surface if it was already listed as a
// child of a different Surface, or in the case where there's infinite
// recursion.
if (!prewalk_result->undrawn_surfaces.count(child_id)) {
surfaces_to_copy.push_back(child_id);
prewalk_result->undrawn_surfaces.insert(child_id);
}
}
} else {
prewalk_result->undrawn_surfaces.erase(surface_id);
referenced_surfaces_.insert(surface_id);
CopyPasses(surface->GetActiveFrame(), surface);
referenced_surfaces_.erase(surface_id);
}
}
}
void SurfaceAggregator::PropagateCopyRequestPasses() {
std::vector<RenderPassId> copy_requests_to_iterate(
copy_request_passes_.begin(), copy_request_passes_.end());
while (!copy_requests_to_iterate.empty()) {
RenderPassId first = copy_requests_to_iterate.back();
copy_requests_to_iterate.pop_back();
auto it = render_pass_dependencies_.find(first);
if (it == render_pass_dependencies_.end())
continue;
for (auto pass : it->second) {
if (copy_request_passes_.insert(pass).second) {
copy_requests_to_iterate.push_back(pass);
}
}
}
}
bool SurfaceAggregator::CanMergeRoundedCorner(
const RoundedCornerInfo& rounded_corner_info,
const RenderPass& root_render_pass) {
// If the quad has no rounded corner, then we do not have to block merging.
if (rounded_corner_info.bounds.IsEmpty())
return true;
// If the quad has rounded corner and it is not a fast rounded corner, we
// cannot merge.
if (!rounded_corner_info.is_fast_rounded_corner)
return false;
// If any of the quads in the root render pass has a rounded corner of its
// own, then we cannot merge.
const SharedQuadStateList& sqs_list = root_render_pass.shared_quad_state_list;
for (const auto* sqs : sqs_list) {
if (!sqs->rounded_corner_bounds.IsEmpty())
return false;
}
return true;
}
CompositorFrame SurfaceAggregator::Aggregate(
const SurfaceId& surface_id,
base::TimeTicks expected_display_time,
gfx::OverlayTransform display_transform,
int64_t display_trace_id) {
DCHECK(!expected_display_time.is_null());
root_surface_id_ = surface_id;
Surface* surface = manager_->GetSurfaceForId(surface_id);
DCHECK(surface);
DCHECK(contained_surfaces_.empty());
contained_surfaces_[surface_id] = surface->GetActiveFrameIndex();
LocalSurfaceId& local_surface_id =
contained_frame_sinks_[surface_id.frame_sink_id()];
local_surface_id =
std::max(surface->surface_id().local_surface_id(), local_surface_id);
if (!surface->HasActiveFrame())
return {};
base::AutoReset<int64_t> reset_display_trace_id(&display_trace_id_,
display_trace_id);
const CompositorFrame& root_surface_frame = surface->GetActiveFrame();
TRACE_EVENT_WITH_FLOW2(
"viz,benchmark", "Graphics.Pipeline",
TRACE_ID_GLOBAL(root_surface_frame.metadata.begin_frame_ack.trace_id),
TRACE_EVENT_FLAG_FLOW_IN | TRACE_EVENT_FLAG_FLOW_OUT, "step",
"SurfaceAggregation", "display_trace", display_trace_id_);
CompositorFrame frame;
dest_pass_list_ = &frame.render_pass_list;
expected_display_time_ = expected_display_time;
const gfx::Size viewport_bounds =
root_surface_frame.render_pass_list.back()->output_rect.size();
root_surface_transform_ =
gfx::OverlayTransformToTransform(display_transform, viewport_bounds);
valid_surfaces_.clear();
has_cached_render_passes_ = false;
damage_ranges_.clear();
damage_rects_union_of_surfaces_on_top_ = gfx::Rect();
new_surfaces_.clear();
DCHECK(referenced_surfaces_.empty());
PrewalkResult prewalk_result;
root_damage_rect_ =
PrewalkTree(surface, false, 0, true /* will_draw */, &prewalk_result);
PropagateCopyRequestPasses();
has_copy_requests_ = !copy_request_passes_.empty();
frame.metadata.may_contain_video = prewalk_result.may_contain_video;
CopyUndrawnSurfaces(&prewalk_result);
referenced_surfaces_.insert(surface_id);
CopyPasses(root_surface_frame, surface);
referenced_surfaces_.erase(surface_id);
// Now that we've handled our main surface aggregation, apply de-jelly effect
// if enabled.
HandleDeJelly(surface);
AddColorConversionPass();
moved_pixel_passes_.clear();
copy_request_passes_.clear();
contributing_content_damaged_passes_.clear();
render_pass_dependencies_.clear();
// Remove all render pass mappings that weren't used in the current frame.
for (auto it = render_pass_allocator_map_.begin();
it != render_pass_allocator_map_.end();) {
if (it->second.in_use) {
it->second.in_use = false;
it++;
} else {
it = render_pass_allocator_map_.erase(it);
}
}
DCHECK(referenced_surfaces_.empty());
if (dest_pass_list_->empty())
return {};
dest_pass_list_ = nullptr;
expected_display_time_ = base::TimeTicks();
ProcessAddedAndRemovedSurfaces();
contained_surfaces_.swap(previous_contained_surfaces_);
contained_surfaces_.clear();
contained_frame_sinks_.swap(previous_contained_frame_sinks_);
contained_frame_sinks_.clear();
for (auto it : previous_contained_surfaces_) {
Surface* surface = manager_->GetSurfaceForId(it.first);
if (surface) {
surface->allocation_group()->TakeAggregatedLatencyInfoUpTo(
surface, &frame.metadata.latency_info);
}
if (!ui::LatencyInfo::Verify(frame.metadata.latency_info,
"SurfaceAggregator::Aggregate")) {
break;
}
}
if (frame_annotator_)
frame_annotator_->AnnotateAggregatedFrame(&frame);
return frame;
}
void SurfaceAggregator::ReleaseResources(const SurfaceId& surface_id) {
auto it = surface_id_to_resource_child_id_.find(surface_id);
if (it != surface_id_to_resource_child_id_.end()) {
provider_->DestroyChild(it->second);
surface_id_to_resource_child_id_.erase(it);
}
}
void SurfaceAggregator::SetFullDamageForSurface(const SurfaceId& surface_id) {
auto it = previous_contained_surfaces_.find(surface_id);
if (it == previous_contained_surfaces_.end())
return;
// Set the last drawn index as 0 to ensure full damage next time it's drawn.
it->second = 0;
}
void SurfaceAggregator::SetOutputColorSpace(
const gfx::ColorSpace& output_color_space) {
output_color_space_ = output_color_space.IsValid()
? output_color_space
: gfx::ColorSpace::CreateSRGB();
}
void SurfaceAggregator::SetMaximumTextureSize(int max_texture_size) {
DCHECK_GE(max_texture_size, 0);
max_texture_size_ = max_texture_size;
}
bool SurfaceAggregator::NotifySurfaceDamageAndCheckForDisplayDamage(
const SurfaceId& surface_id) {
if (previous_contained_surfaces_.count(surface_id)) {
Surface* surface = manager_->GetSurfaceForId(surface_id);
if (surface) {
DCHECK(surface->HasActiveFrame());
if (surface->GetActiveFrame().resource_list.empty())
ReleaseResources(surface_id);
}
return true;
}
auto it = damage_ranges_.find(surface_id.frame_sink_id());
if (it == damage_ranges_.end())
return false;
for (const SurfaceRange& surface_range : it->second) {
if (surface_range.IsInRangeInclusive(surface_id))
return true;
}
return false;
}
void SurfaceAggregator::SetFrameAnnotator(
std::unique_ptr<FrameAnnotator> frame_annotator) {
DCHECK(!frame_annotator_);
frame_annotator_ = std::move(frame_annotator);
}
bool SurfaceAggregator::IsRootSurface(const Surface* surface) const {
return surface->surface_id() == root_surface_id_;
}
void SurfaceAggregator::HandleDeJelly(Surface* surface) {
TRACE_EVENT0("viz", "SurfaceAggregator::HandleDeJelly");
if (dest_pass_list_->empty() || !DeJellyActive()) {
SetLastFrameHadJelly(false);
return;
}
// |jelly_clip| is the rect that contains all de-jelly'd quads. It is used as
// an approximation for the containing non-skewed clip rect.
gfx::Rect jelly_clip;
// |max_skew| represents the maximum skew applied to an element. To prevent
// tearing due to slight inaccuracies, we apply the max skew to all skewed
// elements.
float max_skew = 0.0f;
// Iterate over each SharedQuadState in the root render pass and compute
// |max_skew| and |jelly_clip|.
auto* root_render_pass = dest_pass_list_->back().get();
float screen_width = DeJellyScreenWidth();
for (SharedQuadState* state : root_render_pass->shared_quad_state_list) {
float delta_y = state->de_jelly_delta_y;
if (delta_y == 0.0f)
continue;
// We are going to de-jelly this SharedQuadState. Expand the max clip.
jelly_clip.Union(state->clip_rect);
// Compute the skew angle and update |max_skew|.
float de_jelly_angle = gfx::RadToDeg(atan2(delta_y, screen_width));
float sign = de_jelly_angle / std::abs(de_jelly_angle);
max_skew = std::max(std::abs(de_jelly_angle), std::abs(max_skew)) * sign;
}
// Exit if nothing was skewed.
if (max_skew == 0.0f) {
SetLastFrameHadJelly(false);
return;
}
SetLastFrameHadJelly(true);
// Remove the existing root render pass and create a new one which we will
// re-copy skewed quads / render-passes to.
// TODO(ericrk): Handle backdrop filters?
// TODO(ericrk): This will end up skewing copy requests. Address if
// necessary.
std::unique_ptr<RenderPass> old_root = std::move(dest_pass_list_->back());
dest_pass_list_->pop_back();
auto new_root = root_render_pass->Copy(root_render_pass->id);
new_root->copy_requests = std::move(old_root->copy_requests);
// Data tracking the current sub RenderPass (if any) which is being appended
// to. We can keep re-using a sub RenderPass if the skew has not changed and
// if we are in the typical kSrcOver blend mode.
std::unique_ptr<RenderPass> sub_render_pass;
SkBlendMode sub_render_pass_blend_mode;
float sub_render_pass_opacity;
// Apply de-jelly to all quads, promoting quads into render passes as
// necessary.
for (auto it = root_render_pass->quad_list.begin();
it != root_render_pass->quad_list.end();) {
auto* state = it->shared_quad_state;
bool has_skew = state->de_jelly_delta_y != 0.0f;
// If we have a sub RenderPass which is not compatible with our current
// quad, we must flush and clear it.
if (sub_render_pass) {
if (!has_skew || sub_render_pass_blend_mode != state->blend_mode ||
state->blend_mode != SkBlendMode::kSrcOver) {
AppendDeJellyRenderPass(max_skew, jelly_clip, sub_render_pass_opacity,
sub_render_pass_blend_mode, new_root.get(),
std::move(sub_render_pass));
sub_render_pass.reset();
}
}
// Create a new render pass if we have a skewed quad which is clipped more
// than jelly_clip.
bool create_render_pass =
has_skew && state->is_clipped && state->clip_rect != jelly_clip;
if (!sub_render_pass && create_render_pass) {
sub_render_pass = RenderPass::Create(1, 1);
gfx::Transform skew_transform;
skew_transform.Skew(0.0f, max_skew);
// Ignore rectangles for now, these are updated in
// CreateDeJellyRenderPassQuads.
sub_render_pass->SetNew(next_render_pass_id_++, gfx::Rect(), gfx::Rect(),
skew_transform);
// If blend mode is not kSrcOver, we apply it in the render pass.
if (state->blend_mode != SkBlendMode::kSrcOver) {
sub_render_pass_opacity = state->opacity;
sub_render_pass_blend_mode = state->blend_mode;
} else {
sub_render_pass_opacity = 1.0f;
sub_render_pass_blend_mode = SkBlendMode::kSrcOver;
}
}
if (sub_render_pass) {
CreateDeJellyRenderPassQuads(&it, root_render_pass->quad_list.end(),
jelly_clip, max_skew, sub_render_pass.get());
} else {
float skew = has_skew ? max_skew : 0.0f;
CreateDeJellyNormalQuads(&it, root_render_pass->quad_list.end(),
new_root.get(), skew);
}
}
if (sub_render_pass) {
AppendDeJellyRenderPass(max_skew, jelly_clip, sub_render_pass_opacity,
sub_render_pass_blend_mode, new_root.get(),
std::move(sub_render_pass));
}
dest_pass_list_->push_back(std::move(new_root));
}
void SurfaceAggregator::CreateDeJellyRenderPassQuads(
cc::ListContainer<DrawQuad>::Iterator* quad_iterator,
const cc::ListContainer<DrawQuad>::Iterator& end,
const gfx::Rect& jelly_clip,
float skew,
RenderPass* render_pass) {
auto* quad = **quad_iterator;
const auto* state = quad->shared_quad_state;
// Heuristic - we may have over-clipped a quad. If a quad is clipped by the
// |jelly_clip|, but contains content beyond |jelly_clip|, un-clip the quad by
// MaxDeJellyHeight().
int un_clip_top = 0;
int un_clip_bottom = 0;
if (state->clip_rect.y() <= jelly_clip.y()) {
un_clip_top = MaxDeJellyHeight();
}
if (state->clip_rect.bottom() >= jelly_clip.bottom()) {
un_clip_bottom = MaxDeJellyHeight();
}
// Compute the required renderpass rect in target space.
// First, find the un-transformed visible rect.
gfx::RectF render_pass_visible_rect_f(state->visible_quad_layer_rect);
// Next, if this is a RenderPass quad, find any filters and expand the
// visible rect.
if (quad->material == DrawQuad::Material::kRenderPass) {
RenderPassId target_id =
RenderPassDrawQuad::MaterialCast(quad)->render_pass_id;
RenderPass* source_render_pass = nullptr;
for (auto& rp : *dest_pass_list_) {
if (rp->id == target_id) {
source_render_pass = rp.get();
break;
}
}
if (source_render_pass) {
render_pass_visible_rect_f =
gfx::RectF(source_render_pass->filters.MapRect(
state->visible_quad_layer_rect, SkMatrix()));
}
}
// Next, find the enclosing Rect for the transformed target space RectF.
state->quad_to_target_transform.TransformRect(&render_pass_visible_rect_f);
gfx::Rect render_pass_visible_rect =
gfx::ToEnclosingRect(render_pass_visible_rect_f);
// Finally, expand by our un_clip amounts.
render_pass_visible_rect.Inset(0, -un_clip_top, 0, -un_clip_bottom);
// Expand the |render_pass|'s rects.
render_pass->output_rect =
gfx::UnionRects(render_pass->output_rect, render_pass_visible_rect);
render_pass->damage_rect = render_pass->output_rect;
// Create a new SharedQuadState based on |state|.
{
auto* new_state = render_pass->CreateAndAppendSharedQuadState();
*new_state = *state;
// If blend mode is not kSrcOver, we apply it in the RenderPass.
if (state->blend_mode != SkBlendMode::kSrcOver) {
new_state->opacity = 1.0f;
new_state->blend_mode = SkBlendMode::kSrcOver;
}
// Expand our clip by un clip amounts.
new_state->clip_rect.Inset(0, -un_clip_top, 0, -un_clip_bottom);
}
// Append all quads sharing |new_state|.
AppendDeJellyQuadsForSharedQuadState(quad_iterator, end, render_pass, state);
}
void SurfaceAggregator::CreateDeJellyNormalQuads(
cc::ListContainer<DrawQuad>::Iterator* quad_iterator,
const cc::ListContainer<DrawQuad>::Iterator& end,
RenderPass* root_pass,
float skew) {
auto* quad = **quad_iterator;
const auto* state = quad->shared_quad_state;
// Crearte a new SharedQuadState on |root_pass| and apply skew if any.
SharedQuadState* new_state = root_pass->CreateAndAppendSharedQuadState();
*new_state = *state;
if (skew != 0.0f) {
gfx::Transform skew_transform;
skew_transform.Skew(0.0f, skew);
new_state->quad_to_target_transform =
skew_transform * new_state->quad_to_target_transform;
}
// Append all quads sharing |new_state|.
AppendDeJellyQuadsForSharedQuadState(quad_iterator, end, root_pass, state);
}
void SurfaceAggregator::AppendDeJellyRenderPass(
float skew,
const gfx::Rect& jelly_clip,
float opacity,
SkBlendMode blend_mode,
RenderPass* root_pass,
std::unique_ptr<RenderPass> render_pass) {
// Create a new quad for this renderpass and append it to the pass list.
auto* new_state = root_pass->CreateAndAppendSharedQuadState();
gfx::Transform transform;
new_state->SetAll(transform, render_pass->output_rect,
render_pass->output_rect, gfx::RRectF(), jelly_clip, true,
false, opacity, blend_mode, 0);
auto* quad = root_pass->CreateAndAppendDrawQuad<RenderPassDrawQuad>();
quad->SetNew(new_state, render_pass->output_rect, render_pass->output_rect,
render_pass->id, 0, gfx::RectF(), gfx::Size(), gfx::Vector2dF(),
gfx::PointF(),
gfx::RectF(gfx::SizeF(render_pass->output_rect.size())), false,
1.0f);
gfx::Transform skew_transform;
skew_transform.Skew(0.0f, skew);
new_state->quad_to_target_transform =
skew_transform * new_state->quad_to_target_transform;
dest_pass_list_->push_back(std::move(render_pass));
}
void SurfaceAggregator::AppendDeJellyQuadsForSharedQuadState(
cc::ListContainer<DrawQuad>::Iterator* quad_iterator,
const cc::ListContainer<DrawQuad>::Iterator& end,
RenderPass* render_pass,
const SharedQuadState* state) {
auto* quad = **quad_iterator;
while (quad->shared_quad_state == state) {
if (quad->material == DrawQuad::Material::kRenderPass) {
const auto* pass_quad = RenderPassDrawQuad::MaterialCast(quad);
render_pass->CopyFromAndAppendRenderPassDrawQuad(
pass_quad, pass_quad->render_pass_id);
} else {
render_pass->CopyFromAndAppendDrawQuad(quad);
}
++(*quad_iterator);
if (*quad_iterator == end)
break;
quad = **quad_iterator;
}
}
void SurfaceAggregator::SetLastFrameHadJelly(bool had_jelly) {
// If we've just rendererd a jelly-free frame after one with jelly, we must
// damage the entire surface, as we may have removed jelly from an otherwise
// unchanged quad.
if (last_frame_had_jelly_ && !had_jelly) {
RenderPass* root_pass = dest_pass_list_->back().get();
root_pass->damage_rect = root_pass->output_rect;
}
last_frame_had_jelly_ = had_jelly;
}
} // namespace viz