| /* |
| * Copyright 2014 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef SkRecords_DEFINED |
| #define SkRecords_DEFINED |
| |
| #include "SkCanvas.h" |
| |
| namespace SkRecords { |
| |
| // A list of all the types of canvas calls we can record. |
| // Each of these is reified into a struct below. |
| // |
| // (We're using the macro-of-macro trick here to do several different things with the same list.) |
| // |
| // We leave this SK_RECORD_TYPES macro defined for use by code that wants to operate on SkRecords |
| // types polymorphically. (See SkRecord::Record::{visit,mutate} for an example.) |
| #define SK_RECORD_TYPES(M) \ |
| M(Restore) \ |
| M(Save) \ |
| M(SaveLayer) \ |
| M(Concat) \ |
| M(SetMatrix) \ |
| M(ClipPath) \ |
| M(ClipRRect) \ |
| M(ClipRect) \ |
| M(ClipRegion) \ |
| M(Clear) \ |
| M(DrawBitmap) \ |
| M(DrawBitmapMatrix) \ |
| M(DrawBitmapNine) \ |
| M(DrawBitmapRectToRect) \ |
| M(DrawDRRect) \ |
| M(DrawOval) \ |
| M(DrawPaint) \ |
| M(DrawPath) \ |
| M(DrawPoints) \ |
| M(DrawPosText) \ |
| M(DrawPosTextH) \ |
| M(DrawRRect) \ |
| M(DrawRect) \ |
| M(DrawSprite) \ |
| M(DrawText) \ |
| M(DrawTextOnPath) \ |
| M(DrawVertices) \ |
| M(PushCull) \ |
| M(PopCull) |
| |
| // Defines SkRecords::Type, an enum of all record types. |
| #define ENUM(T) T##_Type, |
| enum Type { SK_RECORD_TYPES(ENUM) }; |
| #undef ENUM |
| |
| // Macros to make it easier to define a record for a draw call with 0 args, 1 args, 2 args, etc. |
| // These should be clearer when you look at their use below. |
| #define RECORD0(T) \ |
| struct T { \ |
| static const Type kType = T##_Type; \ |
| T() {} \ |
| }; |
| |
| // We try to be flexible about the types the constructors take. Instead of requring the exact type |
| // A here, we take any type Z which implicitly casts to A. This allows the delay_copy() trick to |
| // work, allowing the caller to decide whether to pass by value or by const&. |
| |
| #define RECORD1(T, A, a) \ |
| struct T { \ |
| static const Type kType = T##_Type; \ |
| template <typename Z> \ |
| T(Z a) : a(a) {} \ |
| A a; \ |
| }; |
| |
| #define RECORD2(T, A, a, B, b) \ |
| struct T { \ |
| static const Type kType = T##_Type; \ |
| template <typename Z, typename Y> \ |
| T(Z a, Y b) : a(a), b(b) {} \ |
| A a; B b; \ |
| }; |
| |
| #define RECORD3(T, A, a, B, b, C, c) \ |
| struct T { \ |
| static const Type kType = T##_Type; \ |
| template <typename Z, typename Y, typename X> \ |
| T(Z a, Y b, X c) : a(a), b(b), c(c) {} \ |
| A a; B b; C c; \ |
| }; |
| |
| #define RECORD4(T, A, a, B, b, C, c, D, d) \ |
| struct T { \ |
| static const Type kType = T##_Type; \ |
| template <typename Z, typename Y, typename X, typename W> \ |
| T(Z a, Y b, X c, W d) : a(a), b(b), c(c), d(d) {} \ |
| A a; B b; C c; D d; \ |
| }; |
| |
| #define RECORD5(T, A, a, B, b, C, c, D, d, E, e) \ |
| struct T { \ |
| static const Type kType = T##_Type; \ |
| template <typename Z, typename Y, typename X, typename W, typename V> \ |
| T(Z a, Y b, X c, W d, V e) : a(a), b(b), c(c), d(d), e(e) {} \ |
| A a; B b; C c; D d; E e; \ |
| }; |
| |
| // Like SkBitmap, but deep copies pixels if they're not immutable. |
| // Using this, we guarantee the immutability of all bitmaps we record. |
| class ImmutableBitmap { |
| public: |
| explicit ImmutableBitmap(const SkBitmap& bitmap) { |
| if (bitmap.isImmutable()) { |
| fBitmap = bitmap; |
| } else { |
| bitmap.copyTo(&fBitmap); |
| } |
| fBitmap.setImmutable(); |
| } |
| |
| operator const SkBitmap& () const { return fBitmap; } |
| |
| private: |
| SkBitmap fBitmap; |
| }; |
| |
| // Pointers here represent either an optional value or an array if accompanied by a count. |
| // None of these records manages the lifetimes of pointers, except for DrawVertices handling its |
| // Xfermode specially. |
| |
| RECORD0(Restore); |
| RECORD1(Save, SkCanvas::SaveFlags, flags); |
| RECORD3(SaveLayer, SkRect*, bounds, SkPaint*, paint, SkCanvas::SaveFlags, flags); |
| |
| static const unsigned kUnsetPopOffset = 0; |
| RECORD2(PushCull, SkRect, rect, unsigned, popOffset); |
| RECORD0(PopCull); |
| |
| RECORD1(Concat, SkMatrix, matrix); |
| RECORD1(SetMatrix, SkMatrix, matrix); |
| |
| RECORD3(ClipPath, SkPath, path, SkRegion::Op, op, bool, doAA); |
| RECORD3(ClipRRect, SkRRect, rrect, SkRegion::Op, op, bool, doAA); |
| RECORD3(ClipRect, SkRect, rect, SkRegion::Op, op, bool, doAA); |
| RECORD2(ClipRegion, SkRegion, region, SkRegion::Op, op); |
| |
| RECORD1(Clear, SkColor, color); |
| RECORD4(DrawBitmap, ImmutableBitmap, bitmap, SkScalar, left, SkScalar, top, SkPaint*, paint); |
| RECORD3(DrawBitmapMatrix, ImmutableBitmap, bitmap, SkMatrix, matrix, SkPaint*, paint); |
| RECORD4(DrawBitmapNine, ImmutableBitmap, bitmap, SkIRect, center, SkRect, dst, SkPaint*, paint); |
| RECORD5(DrawBitmapRectToRect, ImmutableBitmap, bitmap, |
| SkRect*, src, |
| SkRect, dst, |
| SkPaint*, paint, |
| SkCanvas::DrawBitmapRectFlags, flags); |
| RECORD3(DrawDRRect, SkRRect, outer, SkRRect, inner, SkPaint, paint); |
| RECORD2(DrawOval, SkRect, oval, SkPaint, paint); |
| RECORD1(DrawPaint, SkPaint, paint); |
| RECORD2(DrawPath, SkPath, path, SkPaint, paint); |
| RECORD4(DrawPoints, SkCanvas::PointMode, mode, size_t, count, SkPoint*, pts, SkPaint, paint); |
| RECORD4(DrawPosText, char*, text, size_t, byteLength, SkPoint*, pos, SkPaint, paint); |
| RECORD5(DrawPosTextH, char*, text, |
| size_t, byteLength, |
| SkScalar*, xpos, |
| SkScalar, y, |
| SkPaint, paint); |
| RECORD2(DrawRRect, SkRRect, rrect, SkPaint, paint); |
| RECORD2(DrawRect, SkRect, rect, SkPaint, paint); |
| RECORD4(DrawSprite, ImmutableBitmap, bitmap, int, left, int, top, SkPaint*, paint); |
| RECORD5(DrawText, char*, text, size_t, byteLength, SkScalar, x, SkScalar, y, SkPaint, paint); |
| RECORD5(DrawTextOnPath, char*, text, |
| size_t, byteLength, |
| SkPath, path, |
| SkMatrix*, matrix, |
| SkPaint, paint); |
| |
| // This guy is so ugly we just write it manually. |
| struct DrawVertices { |
| static const Type kType = DrawVertices_Type; |
| |
| DrawVertices(SkCanvas::VertexMode vmode, |
| int vertexCount, |
| SkPoint* vertices, |
| SkPoint* texs, |
| SkColor* colors, |
| SkXfermode* xmode, |
| uint16_t* indices, |
| int indexCount, |
| const SkPaint& paint) |
| : vmode(vmode) |
| , vertexCount(vertexCount) |
| , vertices(vertices) |
| , texs(texs) |
| , colors(colors) |
| , xmode(SkSafeRef(xmode)) |
| , indices(indices) |
| , indexCount(indexCount) |
| , paint(paint) {} |
| |
| SkCanvas::VertexMode vmode; |
| int vertexCount; |
| SkPoint* vertices; |
| SkPoint* texs; |
| SkColor* colors; |
| SkAutoTUnref<SkXfermode> xmode; |
| uint16_t* indices; |
| int indexCount; |
| SkPaint paint; |
| }; |
| |
| #undef RECORD0 |
| #undef RECORD1 |
| #undef RECORD2 |
| #undef RECORD3 |
| #undef RECORD4 |
| #undef RECORD5 |
| |
| } // namespace SkRecords |
| |
| #endif//SkRecords_DEFINED |