gfx/skia/trunk/src/core/SkBlitter_Sprite.cpp@deefc01c0e14 (annotated)
gfx/skia/trunk/src/core/SkBlitter_Sprite.cpp
Thu, 15 Jan 2015 21:03:48 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 15 Jan 2015 21:03:48 +0100
- branch
- TOR_BUG_9701
- changeset 11
- deefc01c0e14
- permissions
- -rw-r--r--
Integrate friendly tips from Tor colleagues to make (or not) 4.5 alpha 3;
This includes removal of overloaded (but unused) methods, and addition of
a overlooked call to DataStruct::SetData(nsISupports, uint32_t, bool.)
| michael@0 | 1 | /* |
| michael@0 | 2 | * Copyright 2006 The Android Open Source Project |
| michael@0 | 3 | * |
| michael@0 | 4 | * Use of this source code is governed by a BSD-style license that can be |
| michael@0 | 5 | * found in the LICENSE file. |
| michael@0 | 6 | */ |
| michael@0 | 7 | |
| michael@0 | 8 | #include "SkSmallAllocator.h" |
| michael@0 | 9 | #include "SkSpriteBlitter.h" |
| michael@0 | 10 | |
| michael@0 | 11 | SkSpriteBlitter::SkSpriteBlitter(const SkBitmap& source) |
| michael@0 | 12 | : fSource(&source) { |
| michael@0 | 13 | fSource->lockPixels(); |
| michael@0 | 14 | } |
| michael@0 | 15 | |
| michael@0 | 16 | SkSpriteBlitter::~SkSpriteBlitter() { |
| michael@0 | 17 | fSource->unlockPixels(); |
| michael@0 | 18 | } |
| michael@0 | 19 | |
| michael@0 | 20 | void SkSpriteBlitter::setup(const SkBitmap& device, int left, int top, |
| michael@0 | 21 | const SkPaint& paint) { |
| michael@0 | 22 | fDevice = &device; |
| michael@0 | 23 | fLeft = left; |
| michael@0 | 24 | fTop = top; |
| michael@0 | 25 | fPaint = &paint; |
| michael@0 | 26 | } |
| michael@0 | 27 | |
| michael@0 | 28 | #ifdef SK_DEBUG |
| michael@0 | 29 | void SkSpriteBlitter::blitH(int x, int y, int width) { |
| michael@0 | 30 | SkDEBUGFAIL("how did we get here?"); |
| michael@0 | 31 | } |
| michael@0 | 32 | |
| michael@0 | 33 | void SkSpriteBlitter::blitAntiH(int x, int y, const SkAlpha antialias[], |
| michael@0 | 34 | const int16_t runs[]) { |
| michael@0 | 35 | SkDEBUGFAIL("how did we get here?"); |
| michael@0 | 36 | } |
| michael@0 | 37 | |
| michael@0 | 38 | void SkSpriteBlitter::blitV(int x, int y, int height, SkAlpha alpha) { |
| michael@0 | 39 | SkDEBUGFAIL("how did we get here?"); |
| michael@0 | 40 | } |
| michael@0 | 41 | |
| michael@0 | 42 | void SkSpriteBlitter::blitMask(const SkMask&, const SkIRect& clip) { |
| michael@0 | 43 | SkDEBUGFAIL("how did we get here?"); |
| michael@0 | 44 | } |
| michael@0 | 45 | #endif |
| michael@0 | 46 | |
| michael@0 | 47 | /////////////////////////////////////////////////////////////////////////////// |
| michael@0 | 48 | |
| michael@0 | 49 | // returning null means the caller will call SkBlitter::Choose() and |
| michael@0 | 50 | // have wrapped the source bitmap inside a shader |
| michael@0 | 51 | SkBlitter* SkBlitter::ChooseSprite(const SkBitmap& device, const SkPaint& paint, |
| michael@0 | 52 | const SkBitmap& source, int left, int top, SkTBlitterAllocator* allocator) { |
| michael@0 | 53 | /* We currently ignore antialiasing and filtertype, meaning we will take our |
| michael@0 | 54 | special blitters regardless of these settings. Ignoring filtertype seems fine |
| michael@0 | 55 | since by definition there is no scale in the matrix. Ignoring antialiasing is |
| michael@0 | 56 | a bit of a hack, since we "could" pass in the fractional left/top for the bitmap, |
| michael@0 | 57 | and respect that by blending the edges of the bitmap against the device. To support |
| michael@0 | 58 | this we could either add more special blitters here, or detect antialiasing in the |
| michael@0 | 59 | paint and return null if it is set, forcing the client to take the slow shader case |
| michael@0 | 60 | (which does respect soft edges). |
| michael@0 | 61 | */ |
| michael@0 | 62 | SkASSERT(allocator != NULL); |
| michael@0 | 63 | |
| michael@0 | 64 | SkSpriteBlitter* blitter; |
| michael@0 | 65 | |
| michael@0 | 66 | switch (device.colorType()) { |
| michael@0 | 67 | case kRGB_565_SkColorType: |
| michael@0 | 68 | blitter = SkSpriteBlitter::ChooseD16(source, paint, allocator); |
| michael@0 | 69 | break; |
| michael@0 | 70 | case kPMColor_SkColorType: |
| michael@0 | 71 | blitter = SkSpriteBlitter::ChooseD32(source, paint, allocator); |
| michael@0 | 72 | break; |
| michael@0 | 73 | default: |
| michael@0 | 74 | blitter = NULL; |
| michael@0 | 75 | break; |
| michael@0 | 76 | } |
| michael@0 | 77 | |
| michael@0 | 78 | if (blitter) { |
| michael@0 | 79 | blitter->setup(device, left, top, paint); |
| michael@0 | 80 | } |
| michael@0 | 81 | return blitter; |
| michael@0 | 82 | } |
