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/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef skiagm_DEFINED
#define skiagm_DEFINED
#include "SkBitmap.h"
#include "SkCanvas.h"
#include "SkPaint.h"
#include "SkSize.h"
#include "SkString.h"
#include "SkTRegistry.h"
#include "sk_tool_utils.h"
class SkAnimTimer;
struct GrContextOptions;
#define DEF_GM(code) \
static skiagm::GM* SK_MACRO_APPEND_LINE(F_)(void*) { code; } \
static skiagm::GMRegistry SK_MACRO_APPEND_LINE(R_)(SK_MACRO_APPEND_LINE(F_));
// a Simple GM is a rendering test that does not store state between
// rendering calls or make use of the onOnceBeforeDraw() virtual; it
// consists of:
// * A single void(*)(SkCanvas*) function.
// * A name.
// * Prefered width and height.
// * Optionally, a background color (default is white).
#define DEF_SIMPLE_GM(NAME, CANVAS, W, H) \
DEF_SIMPLE_GM_BG_NAME(NAME, CANVAS, W, H, SK_ColorWHITE, SkString(#NAME))
#define DEF_SIMPLE_GM_BG(NAME, CANVAS, W, H, BGCOLOR)\
DEF_SIMPLE_GM_BG_NAME(NAME, CANVAS, W, H, BGCOLOR, SkString(#NAME))
#define DEF_SIMPLE_GM_BG_NAME(NAME, CANVAS, W, H, BGCOLOR, NAME_STR) \
static void SK_MACRO_CONCAT(NAME, _GM)(SkCanvas * CANVAS); \
DEF_GM(return new skiagm::SimpleGM(NAME_STR, SK_MACRO_CONCAT(NAME, _GM), \
SkISize::Make(W, H), BGCOLOR);) \
void SK_MACRO_CONCAT(NAME, _GM)(SkCanvas * CANVAS)
namespace skiagm {
class GM {
public:
GM();
virtual ~GM();
enum Mode {
kGM_Mode,
kSample_Mode,
kBench_Mode,
};
void setMode(Mode mode) { fMode = mode; }
Mode getMode() const { return fMode; }
void draw(SkCanvas*);
void drawBackground(SkCanvas*);
void drawContent(SkCanvas*);
SkISize getISize() { return this->onISize(); }
const char* getName();
virtual bool runAsBench() const { return false; }
SkScalar width() {
return SkIntToScalar(this->getISize().width());
}
SkScalar height() {
return SkIntToScalar(this->getISize().height());
}
// TODO(vandebo) Instead of exposing this, we should run all the GMs
// with and without an initial transform.
// Most GMs will return the identity matrix, but some PDFs tests
// require setting the initial transform.
SkMatrix getInitialTransform() const {
SkMatrix matrix = fStarterMatrix;
matrix.preConcat(this->onGetInitialTransform());
return matrix;
}
SkColor getBGColor() const { return fBGColor; }
void setBGColor(SkColor);
// helper: fill a rect in the specified color based on the
// GM's getISize bounds.
void drawSizeBounds(SkCanvas*, SkColor);
bool isCanvasDeferred() const { return fCanvasIsDeferred; }
void setCanvasIsDeferred(bool isDeferred) {
fCanvasIsDeferred = isDeferred;
}
const SkMatrix& getStarterMatrix() { return fStarterMatrix; }
void setStarterMatrix(const SkMatrix& matrix) {
fStarterMatrix = matrix;
}
bool animate(const SkAnimTimer&);
virtual void modifyGrContextOptions(GrContextOptions* options) {}
/** draws a standard message that the GM is only intended to be used with the GPU.*/
static void DrawGpuOnlyMessage(SkCanvas*);
protected:
virtual void onOnceBeforeDraw() {}
virtual void onDraw(SkCanvas*) = 0;
virtual void onDrawBackground(SkCanvas*);
virtual SkISize onISize() = 0;
virtual SkString onShortName() = 0;
virtual bool onAnimate(const SkAnimTimer&) { return false; }
virtual SkMatrix onGetInitialTransform() const { return SkMatrix::I(); }
private:
Mode fMode;
SkString fShortName;
SkColor fBGColor;
bool fCanvasIsDeferred; // work-around problem in srcmode.cpp
bool fHaveCalledOnceBeforeDraw;
SkMatrix fStarterMatrix;
};
typedef SkTRegistry<GM*(*)(void*)> GMRegistry;
class SimpleGM : public skiagm::GM {
public:
SimpleGM(const SkString& name,
void (*drawProc)(SkCanvas*),
const SkISize& size,
SkColor backgroundColor)
: fName(name), fDrawProc(drawProc), fSize(size) {
if (backgroundColor != SK_ColorWHITE) {
this->setBGColor(backgroundColor);
}
}
protected:
void onDraw(SkCanvas* canvas) override;
SkISize onISize() override;
SkString onShortName() override;
private:
SkString fName;
void (*fDrawProc)(SkCanvas*);
SkISize fSize;
};
}
#endif
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