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// Copyright 2019 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/damage_frame_annotator.h"
#include <algorithm>
#include <utility>
#include "cc/base/math_util.h"
#include "components/viz/common/quads/aggregated_render_pass.h"
#include "components/viz/common/quads/debug_border_draw_quad.h"
#include "components/viz/common/quads/shared_quad_state.h"
#include "components/viz/service/display/aggregated_frame.h"
namespace viz {
DamageFrameAnnotator::DamageFrameAnnotator() = default;
DamageFrameAnnotator::~DamageFrameAnnotator() = default;
void DamageFrameAnnotator::AnnotateAggregatedFrame(AggregatedFrame* frame) {
DCHECK(frame);
auto* root_render_pass = frame->render_pass_list.back().get();
const gfx::Rect& damage_rect = root_render_pass->damage_rect;
gfx::Transform transform;
transform.Translate(damage_rect.x(), damage_rect.y());
annotations_.push_back(
AnnotationData{gfx::Rect(damage_rect.size()), transform,
Highlight{SkColor4f{1.0, 0, 0, 0.5}, 4}});
AnnotateRootRenderPass(root_render_pass);
annotations_.clear();
}
void DamageFrameAnnotator::AnnotateRootRenderPass(
AggregatedRenderPass* render_pass) {
const size_t num_quads_to_add = annotations_.size();
// Insert |num_quads_to_add| new DebugBorderDrawQuad at start of list. The
// quads will be drawn on top of the original quads.
auto quad_iter =
render_pass->quad_list
.InsertBeforeAndInvalidateAllPointers<DebugBorderDrawQuad>(
render_pass->quad_list.begin(), num_quads_to_add);
// Initialize the SharedQuadStates and DebugBorderDrawQuads.
for (auto& annotation : annotations_) {
gfx::Rect output_rect = cc::MathUtil::MapEnclosingClippedRect(
annotation.transform, annotation.rect);
SharedQuadState* new_sqs = render_pass->shared_quad_state_list
.AllocateAndConstruct<SharedQuadState>();
new_sqs->SetAll(annotation.transform, output_rect, output_rect,
gfx::MaskFilterInfo(), output_rect,
/*contents_opaque=*/false, /*opacity_f=*/1.f,
SkBlendMode::kSrcOver, /*sorting_context=*/0,
/*layer_id=*/0u, /*fast_rounded_corner=*/false);
DebugBorderDrawQuad* new_quad =
static_cast<DebugBorderDrawQuad*>(*quad_iter);
new_quad->SetNew(new_sqs, annotation.rect, annotation.rect,
annotation.highlight.color, annotation.highlight.width);
++quad_iter;
}
// Set the entire frame as damaged.
render_pass->damage_rect = render_pass->output_rect;
}
} // namespace viz
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