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// Copyright 2014 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_candidate.h"
#include <variant>
#include "cc/base/math_util.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/texture_draw_quad.h"
#include "components/viz/service/debugger/viz_debugger.h"
#include "third_party/skia/include/core/SkColor.h"
#include "ui/gfx/geometry/rect_conversions.h"
#include "ui/gfx/overlay_transform_utils.h"
#include "ui/gfx/video_types.h"
namespace viz {
// There is a bug in |base::optional| which causes the 'value_or' function to
// capture parameters (even constexpr parameters) as a reference.
constexpr uint32_t OverlayCandidate::kInvalidDamageIndex;
constexpr OverlayCandidate::TrackingId OverlayCandidate::kDefaultTrackingId;
OverlayCandidate::OverlayCandidate() = default;
OverlayCandidate::OverlayCandidate(const OverlayCandidate& other) = default;
OverlayCandidate::~OverlayCandidate() = default;
// static
bool OverlayCandidate::IsInvisibleQuad(const DrawQuad* quad) {
float opacity = quad->shared_quad_state->opacity;
if (cc::MathUtil::IsWithinEpsilon(opacity, 0.f))
return true;
if (quad->material != DrawQuad::Material::kSolidColor)
return false;
const float alpha =
SolidColorDrawQuad::MaterialCast(quad)->color.fA * opacity;
return quad->ShouldDrawWithBlending() &&
cc::MathUtil::IsWithinEpsilon(alpha, 0.f);
}
// static
bool OverlayCandidate::QuadHasRoundedDisplayMasks(const DrawQuad* quad) {
if (const auto* texture_quad = quad->DynamicCast<TextureDrawQuad>()) {
return !texture_quad->rounded_display_masks_info.IsEmpty();
}
return false;
}
// static
void OverlayCandidate::ApplyClip(OverlayCandidate& candidate,
const gfx::RectF& clip_rect) {
DCHECK(std::holds_alternative<gfx::OverlayTransform>(candidate.transform));
if (!clip_rect.Contains(candidate.display_rect)) {
// Apply the buffer transform to the candidate's |uv_rect| so that it is
// in the same orientation as |display_rect| when applying the clip.
gfx::Transform buffer_transform = gfx::OverlayTransformToTransform(
std::get<gfx::OverlayTransform>(candidate.transform), gfx::SizeF(1, 1));
candidate.uv_rect = buffer_transform.MapRect(candidate.uv_rect);
gfx::RectF intersect_clip_display = clip_rect;
intersect_clip_display.Intersect(candidate.display_rect);
gfx::RectF uv_rect = cc::MathUtil::ScaleRectProportional(
candidate.uv_rect, candidate.display_rect, intersect_clip_display);
candidate.display_rect = intersect_clip_display;
// Return |uv_rect| to buffer uv space.
candidate.uv_rect =
buffer_transform.InverseMapRect(uv_rect).value_or(uv_rect);
}
}
// static
bool OverlayCandidate::RequiresOverlay(const DrawQuad* quad) {
// Regular priority hint.
switch (quad->material) {
case DrawQuad::Material::kTextureContent:
return TextureDrawQuad::MaterialCast(quad)->protected_video_type ==
gfx::ProtectedVideoType::kHardwareProtected ||
TextureDrawQuad::MaterialCast(quad)->overlay_priority_hint ==
OverlayPriority::kRequired;
case DrawQuad::Material::kVideoHole:
return true;
default:
return false;
}
}
// static
gfx::RectF OverlayCandidate::DisplayRectInTargetSpace(
const OverlayCandidate& candidate) {
if (std::holds_alternative<gfx::Transform>(candidate.transform)) {
return std::get<gfx::Transform>(candidate.transform)
.MapRect(candidate.display_rect);
}
return candidate.display_rect;
}
} // namespace viz
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