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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.
*/
#include "gm.h"
#include "SkCanvas.h"
#include "SkPath.h"
/** Draw a 2px border around the target, then red behind the target;
set the clip to match the target, then draw >> the target in blue.
*/
static void draw(SkCanvas* canvas, SkRect& target, int x, int y) {
SkPaint borderPaint;
borderPaint.setColor(SkColorSetRGB(0x0, 0xDD, 0x0));
borderPaint.setAntiAlias(true);
SkPaint backgroundPaint;
backgroundPaint.setColor(SkColorSetRGB(0xDD, 0x0, 0x0));
backgroundPaint.setAntiAlias(true);
SkPaint foregroundPaint;
foregroundPaint.setColor(SkColorSetRGB(0x0, 0x0, 0xDD));
foregroundPaint.setAntiAlias(true);
canvas->save();
canvas->translate(SkIntToScalar(x), SkIntToScalar(y));
target.inset(SkIntToScalar(-2), SkIntToScalar(-2));
canvas->drawRect(target, borderPaint);
target.inset(SkIntToScalar(2), SkIntToScalar(2));
canvas->drawRect(target, backgroundPaint);
canvas->clipRect(target, SkRegion::kIntersect_Op, true);
target.inset(SkIntToScalar(-4), SkIntToScalar(-4));
canvas->drawRect(target, foregroundPaint);
canvas->restore();
}
static void draw_square(SkCanvas* canvas, int x, int y) {
SkRect target (SkRect::MakeWH(10 * SK_Scalar1, 10 * SK_Scalar1));
draw(canvas, target, x, y);
}
static void draw_column(SkCanvas* canvas, int x, int y) {
SkRect target (SkRect::MakeWH(1 * SK_Scalar1, 10 * SK_Scalar1));
draw(canvas, target, x, y);
}
static void draw_bar(SkCanvas* canvas, int x, int y) {
SkRect target (SkRect::MakeWH(10 * SK_Scalar1, 1 * SK_Scalar1));
draw(canvas, target, x, y);
}
static void draw_rect_tests(SkCanvas* canvas) {
draw_square(canvas, 10, 10);
draw_column(canvas, 30, 10);
draw_bar(canvas, 10, 30);
}
/**
Test a set of clipping problems discovered while writing blitAntiRect,
and test all the code paths through the clipping blitters.
Each region should show as a blue center surrounded by a 2px green
border, with no red.
*/
class AAClipGM : public skiagm::GM {
public:
AAClipGM() {
}
protected:
virtual SkString onShortName() SK_OVERRIDE {
return SkString("aaclip");
}
virtual SkISize onISize() SK_OVERRIDE {
return SkISize::Make(240, 120);
}
virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
// Initial pixel-boundary-aligned draw
draw_rect_tests(canvas);
// Repeat 4x with .2, .4, .6, .8 px offsets
canvas->translate(SK_Scalar1 / 5, SK_Scalar1 / 5);
canvas->translate(SkIntToScalar(50), 0);
draw_rect_tests(canvas);
canvas->translate(SK_Scalar1 / 5, SK_Scalar1 / 5);
canvas->translate(SkIntToScalar(50), 0);
draw_rect_tests(canvas);
canvas->translate(SK_Scalar1 / 5, SK_Scalar1 / 5);
canvas->translate(SkIntToScalar(50), 0);
draw_rect_tests(canvas);
canvas->translate(SK_Scalar1 / 5, SK_Scalar1 / 5);
canvas->translate(SkIntToScalar(50), 0);
draw_rect_tests(canvas);
}
virtual uint32_t onGetFlags() const { return kSkipPipe_Flag; }
private:
typedef skiagm::GM INHERITED;
};
DEF_GM( return SkNEW(AAClipGM); )
/////////////////////////////////////////////////////////////////////////
#ifdef SK_BUILD_FOR_MAC
static SkCanvas* make_canvas(const SkBitmap& bm) {
const SkImageInfo& info = bm.info();
if (info.bytesPerPixel() == 4) {
return SkCanvas::NewRasterDirectN32(info.width(), info.height(),
(SkPMColor*)bm.getPixels(),
bm.rowBytes());
} else {
return SkNEW_ARGS(SkCanvas, (bm));
}
}
#include "SkCGUtils.h"
static void test_image(SkCanvas* canvas, const SkImageInfo& info) {
SkBitmap bm;
bm.allocPixels(info);
SkAutoTUnref<SkCanvas> newc(make_canvas(bm));
if (info.isOpaque()) {
bm.eraseColor(SK_ColorGREEN);
} else {
bm.eraseColor(0);
}
SkPaint paint;
paint.setAntiAlias(true);
paint.setColor(SK_ColorBLUE);
newc->drawCircle(50, 50, 49, paint);
canvas->drawBitmap(bm, 10, 10);
CGImageRef image = SkCreateCGImageRefWithColorspace(bm, NULL);
SkBitmap bm2;
SkCreateBitmapFromCGImage(&bm2, image);
CGImageRelease(image);
canvas->drawBitmap(bm2, 10, 120);
}
class CGImageGM : public skiagm::GM {
public:
CGImageGM() {}
protected:
virtual SkString onShortName() SK_OVERRIDE {
return SkString("cgimage");
}
virtual SkISize onISize() SK_OVERRIDE {
return SkISize::Make(800, 250);
}
virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
const struct {
SkColorType fCT;
SkAlphaType fAT;
} rec[] = {
{ kRGB_565_SkColorType, kOpaque_SkAlphaType },
{ kRGBA_8888_SkColorType, kPremul_SkAlphaType },
{ kRGBA_8888_SkColorType, kUnpremul_SkAlphaType },
{ kRGBA_8888_SkColorType, kOpaque_SkAlphaType },
{ kBGRA_8888_SkColorType, kPremul_SkAlphaType },
{ kBGRA_8888_SkColorType, kUnpremul_SkAlphaType },
{ kBGRA_8888_SkColorType, kOpaque_SkAlphaType },
};
for (size_t i = 0; i < SK_ARRAY_COUNT(rec); ++i) {
SkImageInfo info = SkImageInfo::Make(100, 100, rec[i].fCT, rec[i].fAT);
test_image(canvas, info);
canvas->translate(info.width() + 10, 0);
}
}
virtual uint32_t onGetFlags() const SK_OVERRIDE { return kSkipPipe_Flag; }
private:
typedef skiagm::GM INHERITED;
};
DEF_GM( return SkNEW(CGImageGM); )
#endif
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