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// Copyright 2011 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 "cc/quads/render_pass.h"
#include "base/values.h"
#include "cc/base/math_util.h"
#include "cc/debug/traced_value.h"
#include "cc/output/copy_output_request.h"
#include "cc/quads/draw_quad.h"
#include "cc/quads/render_pass_draw_quad.h"
#include "cc/quads/shared_quad_state.h"
namespace {
const size_t kDefaultNumSharedQuadStatesToReserve = 32;
const size_t kDefaultNumQuadsToReserve = 128;
}
namespace cc {
void* RenderPass::Id::AsTracingId() const {
COMPILE_ASSERT(sizeof(size_t) <= sizeof(void*), // NOLINT(runtime/sizeof)
size_t_bigger_than_pointer);
return reinterpret_cast<void*>(base::HashPair(layer_id, index));
}
scoped_ptr<RenderPass> RenderPass::Create() {
return make_scoped_ptr(new RenderPass());
}
scoped_ptr<RenderPass> RenderPass::Create(size_t num_layers) {
return make_scoped_ptr(new RenderPass(num_layers));
}
RenderPass::RenderPass() : id(Id(-1, -1)), has_transparent_background(true) {
shared_quad_state_list.reserve(kDefaultNumSharedQuadStatesToReserve);
quad_list.reserve(kDefaultNumQuadsToReserve);
}
RenderPass::RenderPass(size_t num_layers)
: id(Id(-1, -1)), has_transparent_background(true) {
// Each layer usually produces one shared quad state, so the number of layers
// is a good hint for what to reserve here.
shared_quad_state_list.reserve(num_layers);
quad_list.reserve(kDefaultNumQuadsToReserve);
}
RenderPass::~RenderPass() {
TRACE_EVENT_OBJECT_DELETED_WITH_ID(
TRACE_DISABLED_BY_DEFAULT("cc.debug.quads"),
"cc::RenderPass", id.AsTracingId());
}
scoped_ptr<RenderPass> RenderPass::Copy(Id new_id) const {
scoped_ptr<RenderPass> copy_pass(Create());
copy_pass->SetAll(new_id,
output_rect,
damage_rect,
transform_to_root_target,
has_transparent_background);
return copy_pass.Pass();
}
// static
void RenderPass::CopyAll(const ScopedPtrVector<RenderPass>& in,
ScopedPtrVector<RenderPass>* out) {
for (size_t i = 0; i < in.size(); ++i) {
RenderPass* source = in[i];
// Since we can't copy these, it's wrong to use CopyAll in a situation where
// you may have copy_requests present.
DCHECK_EQ(source->copy_requests.size(), 0u);
scoped_ptr<RenderPass> copy_pass(Create());
copy_pass->SetAll(source->id,
source->output_rect,
source->damage_rect,
source->transform_to_root_target,
source->has_transparent_background);
for (size_t i = 0; i < source->shared_quad_state_list.size(); ++i) {
copy_pass->shared_quad_state_list.push_back(
source->shared_quad_state_list[i]->Copy());
}
for (size_t i = 0, sqs_i = 0; i < source->quad_list.size(); ++i) {
while (source->quad_list[i]->shared_quad_state !=
source->shared_quad_state_list[sqs_i]) {
++sqs_i;
DCHECK_LT(sqs_i, source->shared_quad_state_list.size());
}
DCHECK(source->quad_list[i]->shared_quad_state ==
source->shared_quad_state_list[sqs_i]);
DrawQuad* quad = source->quad_list[i];
if (quad->material == DrawQuad::RENDER_PASS) {
const RenderPassDrawQuad* pass_quad =
RenderPassDrawQuad::MaterialCast(quad);
copy_pass->quad_list.push_back(
pass_quad->Copy(copy_pass->shared_quad_state_list[sqs_i],
pass_quad->render_pass_id).PassAs<DrawQuad>());
} else {
copy_pass->quad_list.push_back(source->quad_list[i]->Copy(
copy_pass->shared_quad_state_list[sqs_i]));
}
}
out->push_back(copy_pass.Pass());
}
}
void RenderPass::SetNew(Id id,
const gfx::Rect& output_rect,
const gfx::Rect& damage_rect,
const gfx::Transform& transform_to_root_target) {
DCHECK_GT(id.layer_id, 0);
DCHECK_GE(id.index, 0);
DCHECK(damage_rect.IsEmpty() || output_rect.Contains(damage_rect))
<< "damage_rect: " << damage_rect.ToString()
<< " output_rect: " << output_rect.ToString();
this->id = id;
this->output_rect = output_rect;
this->damage_rect = damage_rect;
this->transform_to_root_target = transform_to_root_target;
DCHECK(quad_list.empty());
DCHECK(shared_quad_state_list.empty());
}
void RenderPass::SetAll(Id id,
const gfx::Rect& output_rect,
const gfx::Rect& damage_rect,
const gfx::Transform& transform_to_root_target,
bool has_transparent_background) {
DCHECK_GT(id.layer_id, 0);
DCHECK_GE(id.index, 0);
this->id = id;
this->output_rect = output_rect;
this->damage_rect = damage_rect;
this->transform_to_root_target = transform_to_root_target;
this->has_transparent_background = has_transparent_background;
DCHECK(quad_list.empty());
DCHECK(shared_quad_state_list.empty());
}
scoped_ptr<base::Value> RenderPass::AsValue() const {
scoped_ptr<base::DictionaryValue> value(new base::DictionaryValue());
value->Set("output_rect", MathUtil::AsValue(output_rect).release());
value->Set("damage_rect", MathUtil::AsValue(damage_rect).release());
value->SetBoolean("has_transparent_background", has_transparent_background);
value->SetInteger("copy_requests", copy_requests.size());
scoped_ptr<base::ListValue> shared_states_value(new base::ListValue());
for (size_t i = 0; i < shared_quad_state_list.size(); ++i) {
shared_states_value->Append(shared_quad_state_list[i]->AsValue().release());
}
value->Set("shared_quad_state_list", shared_states_value.release());
scoped_ptr<base::ListValue> quad_list_value(new base::ListValue());
for (size_t i = 0; i < quad_list.size(); ++i) {
quad_list_value->Append(quad_list[i]->AsValue().release());
}
value->Set("quad_list", quad_list_value.release());
TracedValue::MakeDictIntoImplicitSnapshotWithCategory(
TRACE_DISABLED_BY_DEFAULT("cc.debug.quads"),
value.get(), "cc::RenderPass", id.AsTracingId());
return value.PassAs<base::Value>();
}
} // namespace cc
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