skia2/include/utils/SkLuaCanvas.h
Michael Ludwig b0cee9bf9a Remove drawBitmap et al. from SkDevice
SkCanvas keeps its non-exotic drawBitmap calls for now but they
immediately wrap the bitmap in SkImage::MakeFromBitmap. This will
add a copy for mutable bitmaps, but this can be worked around by using
images directly (preferred), or marking the bitmap as immutable. In
practice, mutable bitmaps do not seem to be widely used so this is
deemed acceptable for now.

Several GMs are updated to mark the bitmaps as immutable in order to
avoid pixel churn in how CPU vs. GPU mipmaps are generated. As we move
towards explicit mipmap generation, this distinction will become less
critical, so I'm just avoiding it for now. See skbug.com/9337 for mipmap
proposal. The image diffs encountered in this CL directly related to
generating mipmaps for bitmaps already cached on the GPU vs. not on the
GPU yet.

It was decided to copy if mutable vs. never copying the bitmap because
it preserves the image guarantees the devices and canvas' rely on,
and imposing the need to inspect an image for mutability is undesired.

Bug: skia:10037, skia:9337
Change-Id: If152e6cae1e155ccf6bd2cd755895f3c7a0135a5
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/276004
Commit-Queue: Michael Ludwig <michaelludwig@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
2020-03-12 15:28:00 +00:00

76 lines
2.7 KiB
C++

/*
* Copyright 2013 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkLuaCanvas_DEFINED
#define SkLuaCanvas_DEFINED
#include "include/core/SkCanvas.h"
#include "include/core/SkString.h"
#include "include/core/SkVertices.h"
struct lua_State;
class SkLuaCanvas : public SkCanvas {
public:
void pushThis();
SkLuaCanvas(int width, int height, lua_State*, const char function[]);
~SkLuaCanvas() override;
protected:
void willSave() override;
SaveLayerStrategy getSaveLayerStrategy(const SaveLayerRec&) override;
bool onDoSaveBehind(const SkRect*) override;
void willRestore() override;
void didConcat44(const SkScalar[16]) override;
void didConcat(const SkMatrix&) override;
void didSetMatrix(const SkMatrix&) override;
void didScale(SkScalar, SkScalar) override;
void didTranslate(SkScalar, SkScalar) override;
void onDrawDRRect(const SkRRect&, const SkRRect&, const SkPaint&) override;
virtual void onDrawTextBlob(const SkTextBlob* blob, SkScalar x, SkScalar y,
const SkPaint& paint) override;
void onDrawPaint(const SkPaint&) override;
void onDrawPoints(PointMode, size_t count, const SkPoint pts[], const SkPaint&) override;
void onDrawRect(const SkRect&, const SkPaint&) override;
void onDrawOval(const SkRect&, const SkPaint&) override;
void onDrawArc(const SkRect&, SkScalar, SkScalar, bool, const SkPaint&) override;
void onDrawRRect(const SkRRect&, const SkPaint&) override;
void onDrawPath(const SkPath&, const SkPaint&) override;
void onDrawImage(const SkImage*, SkScalar left, SkScalar top, const SkPaint*) override;
void onDrawImageRect(const SkImage*, const SkRect* src, const SkRect& dst,
const SkPaint*, SrcRectConstraint) override;
#ifdef SK_SUPPORT_LEGACY_DRAWVERTS_VIRTUAL
void onDrawVerticesObject(const SkVertices*, const SkVertices::Bone bones[], int boneCount,
SkBlendMode, const SkPaint&) override;
#else
void onDrawVerticesObject(const SkVertices*, SkBlendMode, const SkPaint&) override;
#endif
void onClipRect(const SkRect&, SkClipOp, ClipEdgeStyle) override;
void onClipRRect(const SkRRect&, SkClipOp, ClipEdgeStyle) override;
void onClipPath(const SkPath&, SkClipOp, ClipEdgeStyle) override;
void onClipShader(sk_sp<SkShader>, SkClipOp) override;
void onClipRegion(const SkRegion&, SkClipOp) override;
void onDrawPicture(const SkPicture*, const SkMatrix*, const SkPaint*) override;
void onDrawDrawable(SkDrawable*, const SkMatrix*) override;
private:
lua_State* fL;
SkString fFunc;
void sendverb(const char verb[]);
typedef SkCanvas INHERITED;
};
#endif