blob: 7e4dd29708ccd4e61b3dafcc2306a4be1cdfccef [file] [log] [blame]
// Copyright 2013 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/resources/texture_mailbox.h"
#include "base/logging.h"
#include "cc/resources/shared_bitmap.h"
namespace cc {
TextureMailbox::TextureMailbox() : shared_bitmap_(NULL) {
}
TextureMailbox::TextureMailbox(const gpu::MailboxHolder& mailbox_holder)
: mailbox_holder_(mailbox_holder),
shared_bitmap_(NULL),
allow_overlay_(false),
nearest_neighbor_(false) {
}
TextureMailbox::TextureMailbox(const gpu::Mailbox& mailbox,
uint32 target,
uint32 sync_point)
: mailbox_holder_(mailbox, target, sync_point),
shared_bitmap_(NULL),
allow_overlay_(false),
nearest_neighbor_(false) {
}
TextureMailbox::TextureMailbox(const gpu::Mailbox& mailbox,
uint32 target,
uint32 sync_point,
const gfx::Size& size_in_pixels,
bool allow_overlay)
: mailbox_holder_(mailbox, target, sync_point),
shared_bitmap_(nullptr),
size_in_pixels_(size_in_pixels),
allow_overlay_(allow_overlay),
nearest_neighbor_(false) {
DCHECK_IMPLIES(allow_overlay, !size_in_pixels.IsEmpty());
}
TextureMailbox::TextureMailbox(SharedBitmap* shared_bitmap,
const gfx::Size& size_in_pixels)
: shared_bitmap_(shared_bitmap),
size_in_pixels_(size_in_pixels),
allow_overlay_(false),
nearest_neighbor_(false) {
// If an embedder of cc gives an invalid TextureMailbox, we should crash
// here to identify the offender.
CHECK(SharedBitmap::VerifySizeInBytes(size_in_pixels_));
}
TextureMailbox::~TextureMailbox() {}
bool TextureMailbox::Equals(const TextureMailbox& other) const {
if (other.IsTexture()) {
return IsTexture() && !memcmp(mailbox_holder_.mailbox.name,
other.mailbox_holder_.mailbox.name,
sizeof(mailbox_holder_.mailbox.name));
} else if (other.IsSharedMemory()) {
return IsSharedMemory() && (shared_bitmap_ == other.shared_bitmap_);
}
DCHECK(!other.IsValid());
return !IsValid();
}
size_t TextureMailbox::SharedMemorySizeInBytes() const {
// UncheckedSizeInBytes is okay because we VerifySizeInBytes in the
// constructor and the field is immutable.
return SharedBitmap::UncheckedSizeInBytes(size_in_pixels_);
}
} // namespace cc