tilemodes_alpha.cpp File Reference

#include "gm/gm.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkImage.h"
#include "include/core/SkMatrix.h"
#include "include/core/SkPaint.h"
#include "include/core/SkRect.h"
#include "include/core/SkRefCnt.h"
#include "include/core/SkShader.h"
#include "include/core/SkTileMode.h"
#include "tools/DecodeUtils.h"
#include "tools/Resources.h"

Go to the source code of this file.

Functions
	DEF_SIMPLE_GM (tilemodes_alpha, canvas, 512, 512)

Function Documentation

DEF_SIMPLE_GM()

DEF_SIMPLE_GM	(	tilemodes_alpha	,
		canvas	,
		512	,
		512
	)

Definition at line 17 of file tilemodes_alpha.cpp.

                                                 {
    sk_sp<SkImage> image = ToolUtils::GetResourceAsImage("images/mandrill_64.png");
    if (!image) {
        return;
    }
    constexpr SkTileMode kModes[4] = {
        SkTileMode::kClamp,
        SkTileMode::kRepeat,
        SkTileMode::kMirror,
        SkTileMode::kDecal,
    };
    for (int y = 0; y < 4; ++y) {
        for (int x = 0; x < 4; ++x) {
            SkRect rect = SkRect::MakeXYWH(128 * x + 1, 128 * y + 1, 126, 126);
            SkMatrix matrix = SkMatrix::Translate(rect.x(), rect.y());
            SkPaint paint(SkColor4f{0, 0, 0, 0.5f});
            paint.setShader(image->makeShader(kModes[x], kModes[y], SkSamplingOptions(), &matrix));
            canvas->drawRect(rect, paint);
        }
    }
}