Surface_MakeFromBackendTexture.cpp File Reference

#include "tools/fiddle/examples.h"

Go to the source code of this file.

Functions
	REG_FIDDLE (Surface_WrapBackendTexture, 256, 256, false, 3)

Function Documentation

REG_FIDDLE()

REG_FIDDLE	(	Surface_WrapBackendTexture	,
		256	,
		256	,
		false	,
		3
	)

Definition at line 5 of file Surface_MakeFromBackendTexture.cpp.

                                                           {
    void draw(SkCanvas * canvas) {
        SkFont font(fontMgr->matchFamilyStyle(nullptr, {}), 32);
        SkPaint paint;
 
        GrRecordingContext* context = canvas->recordingContext();
        if (!context) {
            canvas->drawString("GPU only!", 20, 40, font, paint);
            return;
        }
        GrDirectContext* direct = context->asDirectContext();
        if (!direct) {
            canvas->drawString("Direct Context only!", 20, 40, font, paint);
            return;
        }
 
        sk_sp<SkSurface> gpuSurface = SkSurfaces::WrapBackendTexture(direct,
                                                                     backEndTexture,
                                                                     kTopLeft_GrSurfaceOrigin,
                                                                     0,
                                                                     kRGBA_8888_SkColorType,
                                                                     nullptr,
                                                                     nullptr,
                                                                     nullptr);
        auto surfaceCanvas = gpuSurface->getCanvas();
        surfaceCanvas->drawString("GPU rocks!", 20, 40, font, paint);
        sk_sp<SkImage> image(gpuSurface->makeImageSnapshot());
        canvas->drawImage(image, 0, 0);
    }
}  // END FIDDLE