blob: f1103e8567e5cab8297ac2f728f0db92b98f1715 [file] [log] [blame]
/*
* 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/gm.h"
#include "include/core/SkBitmap.h"
#include "include/core/SkBlendMode.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkColor.h"
#include "include/core/SkMatrix.h"
#include "include/core/SkPaint.h"
#include "include/core/SkPathBuilder.h"
#include "include/core/SkRect.h"
#include "include/core/SkScalar.h"
#include "include/core/SkSize.h"
#include "include/core/SkString.h"
#include "src/core/SkCanvasPriv.h"
#include "tools/ToolUtils.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, 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.
*/
DEF_SIMPLE_GM(aaclip, canvas, 240, 120) {
// 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);
}
/////////////////////////////////////////////////////////////////////////
#ifdef SK_BUILD_FOR_MAC
#include "include/utils/mac/SkCGUtils.h"
static std::unique_ptr<SkCanvas> make_canvas(const SkBitmap& bm) {
return SkCanvas::MakeRasterDirect(bm.info(), bm.getPixels(), bm.rowBytes());
}
static void test_image(SkCanvas* canvas, const SkImageInfo& info) {
SkBitmap bm;
bm.allocPixels(info);
if (info.isOpaque()) {
bm.eraseColor(SK_ColorGREEN);
} else {
bm.eraseColor(0);
}
SkPaint paint;
paint.setAntiAlias(true);
paint.setColor(SK_ColorBLUE);
make_canvas(bm)->drawCircle(50, 50, 49, paint);
canvas->drawImage(bm.asImage(), 10, 10);
CGImageRef image = SkCreateCGImageRefWithColorspace(bm, nullptr);
SkBitmap bm2;
SkCreateBitmapFromCGImage(&bm2, image);
canvas->drawImage(bm2.asImage(), 10, 120);
canvas->drawImage(SkMakeImageFromCGImage(image), 10, 120 + bm2.height() + 10);
CGImageRelease(image);
}
DEF_SIMPLE_GM(cgimage, canvas, 800, 250) {
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 < std::size(rec); ++i) {
SkImageInfo info = SkImageInfo::Make(100, 100, rec[i].fCT, rec[i].fAT);
test_image(canvas, info);
canvas->translate(info.width() + 10, 0);
}
}
#endif
///////////////////////////////////////////////////////////////////////////////////////////////////
// https://bug.skia.org/3716
class ClipCubicGM : public skiagm::GM {
const SkScalar W = 100;
const SkScalar H = 240;
SkPath fVPath, fHPath;
public:
ClipCubicGM() {
fVPath = SkPathBuilder().moveTo(W, 0)
.cubicTo(W, H-10, 0, 10, 0, H)
.detach();
SkMatrix pivot;
pivot.setRotate(90, W/2, H/2);
fHPath = fVPath.makeTransform(pivot);
}
protected:
SkString getName() const override { return SkString("clipcubic"); }
SkISize getISize() override { return SkISize::Make(400, 410); }
void doDraw(SkCanvas* canvas, const SkPath& path) {
SkPaint paint;
paint.setAntiAlias(true);
paint.setColor(0xFFCCCCCC);
canvas->drawPath(path, paint);
paint.setColor(SK_ColorRED);
paint.setStyle(SkPaint::kStroke_Style);
canvas->drawPath(path, paint);
}
void drawAndClip(SkCanvas* canvas, const SkPath& path, SkScalar dx, SkScalar dy) {
SkAutoCanvasRestore acr(canvas, true);
SkRect r = SkRect::MakeXYWH(0, H/4, W, H/2);
SkPaint paint;
paint.setColor(ToolUtils::color_to_565(0xFF8888FF));
canvas->drawRect(r, paint);
this->doDraw(canvas, path);
canvas->translate(dx, dy);
canvas->drawRect(r, paint);
canvas->clipRect(r);
this->doDraw(canvas, path);
}
void onDraw(SkCanvas* canvas) override {
canvas->translate(80, 10);
this->drawAndClip(canvas, fVPath, 200, 0);
canvas->translate(0, 200);
this->drawAndClip(canvas, fHPath, 200, 0);
}
private:
using INHERITED = skiagm::GM;
};
DEF_GM(return new ClipCubicGM;)