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| 1 // Copyright 2013 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "cc/resources/texture_mailbox.h" | |
| 6 | |
| 7 #include "base/logging.h" | |
| 8 #include "cc/resources/shared_bitmap.h" | |
| 9 | |
| 10 namespace cc { | |
| 11 | |
| 12 TextureMailbox::TextureMailbox() : shared_bitmap_(NULL) { | |
| 13 } | |
| 14 | |
| 15 TextureMailbox::TextureMailbox(const gpu::MailboxHolder& mailbox_holder) | |
| 16 : mailbox_holder_(mailbox_holder), | |
| 17 shared_bitmap_(NULL), | |
| 18 allow_overlay_(false), | |
| 19 nearest_neighbor_(false) { | |
| 20 } | |
| 21 | |
| 22 TextureMailbox::TextureMailbox(const gpu::Mailbox& mailbox, | |
| 23 uint32 target, | |
| 24 uint32 sync_point) | |
| 25 : mailbox_holder_(mailbox, target, sync_point), | |
| 26 shared_bitmap_(NULL), | |
| 27 allow_overlay_(false), | |
| 28 nearest_neighbor_(false) { | |
| 29 } | |
| 30 | |
| 31 TextureMailbox::TextureMailbox(SharedBitmap* shared_bitmap, | |
| 32 const gfx::Size& size) | |
| 33 : shared_bitmap_(shared_bitmap), | |
| 34 shared_memory_size_(size), | |
| 35 allow_overlay_(false), | |
| 36 nearest_neighbor_(false) { | |
| 37 // If an embedder of cc gives an invalid TextureMailbox, we should crash | |
| 38 // here to identify the offender. | |
| 39 CHECK(SharedBitmap::VerifySizeInBytes(shared_memory_size_)); | |
| 40 } | |
| 41 | |
| 42 TextureMailbox::~TextureMailbox() {} | |
| 43 | |
| 44 bool TextureMailbox::Equals(const TextureMailbox& other) const { | |
| 45 if (other.IsTexture()) { | |
| 46 return IsTexture() && !memcmp(mailbox_holder_.mailbox.name, | |
| 47 other.mailbox_holder_.mailbox.name, | |
| 48 sizeof(mailbox_holder_.mailbox.name)); | |
| 49 } else if (other.IsSharedMemory()) { | |
| 50 return IsSharedMemory() && (shared_bitmap_ == other.shared_bitmap_); | |
| 51 } | |
| 52 | |
| 53 DCHECK(!other.IsValid()); | |
| 54 return !IsValid(); | |
| 55 } | |
| 56 | |
| 57 size_t TextureMailbox::SharedMemorySizeInBytes() const { | |
| 58 // UncheckedSizeInBytes is okay because we VerifySizeInBytes in the | |
| 59 // constructor and the field is immutable. | |
| 60 return SharedBitmap::UncheckedSizeInBytes(shared_memory_size_); | |
| 61 } | |
| 62 | |
| 63 } // namespace cc | |
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