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/*
 * Copyright 2013 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#include "SkTypes.h"

#if SK_SUPPORT_GPU

#include "GrContext.h"
#include "GrContextFactory.h"
#include "GrRenderTarget.h"
#include "GrTexture.h"
#include "GrSurfacePriv.h"
#include "Test.h"

// Tests that GrSurface::asTexture(), GrSurface::asRenderTarget(), and static upcasting of texture
// and render targets to GrSurface all work as expected.
DEF_GPUTEST(GrSurface, reporter, factory) {
    GrContext* context = factory->get(GrContextFactory::kNull_GLContextType);
    if (context) {
        GrSurfaceDesc desc;
        desc.fConfig = kSkia8888_GrPixelConfig;
        desc.fFlags = kRenderTarget_GrSurfaceFlag;
        desc.fWidth = 256;
        desc.fHeight = 256;
        desc.fSampleCnt = 0;
        GrSurface* texRT1 = context->textureProvider()->createTexture(desc, false, nullptr, 0);

        REPORTER_ASSERT(reporter, texRT1 == texRT1->asRenderTarget());
        REPORTER_ASSERT(reporter, texRT1 == texRT1->asTexture());
        REPORTER_ASSERT(reporter, static_cast<GrSurface*>(texRT1->asRenderTarget()) ==
                                  texRT1->asTexture());
        REPORTER_ASSERT(reporter, texRT1->asRenderTarget() ==
                                  static_cast<GrSurface*>(texRT1->asTexture()));
        REPORTER_ASSERT(reporter, static_cast<GrSurface*>(texRT1->asRenderTarget()) ==
                                  static_cast<GrSurface*>(texRT1->asTexture()));

        desc.fFlags = kNone_GrSurfaceFlags;
        GrSurface* tex1 = context->textureProvider()->createTexture(desc, false, nullptr, 0);
        REPORTER_ASSERT(reporter, nullptr == tex1->asRenderTarget());
        REPORTER_ASSERT(reporter, tex1 == tex1->asTexture());
        REPORTER_ASSERT(reporter, static_cast<GrSurface*>(tex1) == tex1->asTexture());

        GrBackendTextureDesc backendDesc;
        backendDesc.fConfig = kSkia8888_GrPixelConfig;
        backendDesc.fFlags = kRenderTarget_GrBackendTextureFlag;
        backendDesc.fWidth = 256;
        backendDesc.fHeight = 256;
        backendDesc.fSampleCnt = 0;
        backendDesc.fTextureHandle = 5;
        GrSurface* texRT2 = context->textureProvider()->wrapBackendTexture(
            backendDesc, kBorrow_GrWrapOwnership);
        REPORTER_ASSERT(reporter, texRT2 == texRT2->asRenderTarget());
        REPORTER_ASSERT(reporter, texRT2 == texRT2->asTexture());
        REPORTER_ASSERT(reporter, static_cast<GrSurface*>(texRT2->asRenderTarget()) ==
                                  texRT2->asTexture());
        REPORTER_ASSERT(reporter, texRT2->asRenderTarget() ==
                                  static_cast<GrSurface*>(texRT2->asTexture()));
        REPORTER_ASSERT(reporter, static_cast<GrSurface*>(texRT2->asRenderTarget()) ==
                                   static_cast<GrSurface*>(texRT2->asTexture()));

        texRT1->unref();
        texRT2->unref();
        tex1->unref();
    }
}

#endif