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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/ui_resource_bitmap.h" | |
| 6 | |
| 7 #include "base/logging.h" | |
| 8 #include "base/memory/scoped_ptr.h" | |
| 9 #include "third_party/skia/include/core/SkBitmap.h" | |
| 10 #include "third_party/skia/include/core/SkMallocPixelRef.h" | |
| 11 #include "third_party/skia/include/core/SkPixelRef.h" | |
| 12 | |
| 13 namespace cc { | |
| 14 namespace { | |
| 15 | |
| 16 UIResourceBitmap::UIResourceFormat SkColorTypeToUIResourceFormat( | |
| 17 SkColorType sk_type) { | |
| 18 UIResourceBitmap::UIResourceFormat format = UIResourceBitmap::RGBA8; | |
| 19 switch (sk_type) { | |
| 20 case kN32_SkColorType: | |
| 21 format = UIResourceBitmap::RGBA8; | |
| 22 break; | |
| 23 case kAlpha_8_SkColorType: | |
| 24 format = UIResourceBitmap::ALPHA_8; | |
| 25 break; | |
| 26 default: | |
| 27 NOTREACHED() << "Invalid SkColorType for UIResourceBitmap: " << sk_type; | |
| 28 break; | |
| 29 } | |
| 30 return format; | |
| 31 } | |
| 32 | |
| 33 } // namespace | |
| 34 | |
| 35 void UIResourceBitmap::Create(const skia::RefPtr<SkPixelRef>& pixel_ref, | |
| 36 const gfx::Size& size, | |
| 37 UIResourceFormat format) { | |
| 38 DCHECK(size.width()); | |
| 39 DCHECK(size.height()); | |
| 40 DCHECK(pixel_ref); | |
| 41 DCHECK(pixel_ref->isImmutable()); | |
| 42 format_ = format; | |
| 43 size_ = size; | |
| 44 pixel_ref_ = pixel_ref; | |
| 45 | |
| 46 // Default values for secondary parameters. | |
| 47 wrap_mode_ = CLAMP_TO_EDGE; | |
| 48 opaque_ = (format == ETC1); | |
| 49 } | |
| 50 | |
| 51 UIResourceBitmap::UIResourceBitmap(const SkBitmap& skbitmap) { | |
| 52 DCHECK_EQ(skbitmap.width(), skbitmap.rowBytesAsPixels()); | |
| 53 DCHECK(skbitmap.isImmutable()); | |
| 54 | |
| 55 skia::RefPtr<SkPixelRef> pixel_ref = skia::SharePtr(skbitmap.pixelRef()); | |
| 56 const SkImageInfo& info = pixel_ref->info(); | |
| 57 Create(pixel_ref, | |
| 58 gfx::Size(info.fWidth, info.fHeight), | |
| 59 SkColorTypeToUIResourceFormat(skbitmap.colorType())); | |
| 60 | |
| 61 SetOpaque(skbitmap.isOpaque()); | |
| 62 } | |
| 63 | |
| 64 UIResourceBitmap::UIResourceBitmap(const gfx::Size& size, bool is_opaque) { | |
| 65 SkAlphaType alphaType = is_opaque ? kOpaque_SkAlphaType : kPremul_SkAlphaType; | |
| 66 SkImageInfo info = | |
| 67 SkImageInfo::MakeN32(size.width(), size.height(), alphaType); | |
| 68 skia::RefPtr<SkPixelRef> pixel_ref = skia::AdoptRef( | |
| 69 SkMallocPixelRef::NewAllocate(info, info.minRowBytes(), NULL)); | |
| 70 pixel_ref->setImmutable(); | |
| 71 Create(pixel_ref, size, UIResourceBitmap::RGBA8); | |
| 72 SetOpaque(is_opaque); | |
| 73 } | |
| 74 | |
| 75 UIResourceBitmap::UIResourceBitmap(const skia::RefPtr<SkPixelRef>& pixel_ref, | |
| 76 const gfx::Size& size) { | |
| 77 Create(pixel_ref, size, UIResourceBitmap::ETC1); | |
| 78 } | |
| 79 | |
| 80 UIResourceBitmap::~UIResourceBitmap() {} | |
| 81 | |
| 82 AutoLockUIResourceBitmap::AutoLockUIResourceBitmap( | |
| 83 const UIResourceBitmap& bitmap) : bitmap_(bitmap) { | |
| 84 bitmap_.pixel_ref_->lockPixels(); | |
| 85 } | |
| 86 | |
| 87 AutoLockUIResourceBitmap::~AutoLockUIResourceBitmap() { | |
| 88 bitmap_.pixel_ref_->unlockPixels(); | |
| 89 } | |
| 90 | |
| 91 const uint8_t* AutoLockUIResourceBitmap::GetPixels() const { | |
| 92 return static_cast<const uint8_t*>(bitmap_.pixel_ref_->pixels()); | |
| 93 } | |
| 94 | |
| 95 } // namespace cc | |
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Chromium Code Reviews
Issue 1057283003:
Remove parts of //cc we aren't using (Closed)
Base URL: git@github.com:domokit/mojo.git@master