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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 "GrTexture.h"
#include "GrTexturePriv.h"
#include "SkCanvas.h"
#include "SkGr.h"
#include "SkSurface.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(GrTextureMipMapInvalidationTest, 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);
GrSurface* texRT2 = context->textureProvider()->createTexture(desc, false, nullptr, 0);
REPORTER_ASSERT(reporter, nullptr != texRT1);
REPORTER_ASSERT(reporter, nullptr != texRT2);
GrTexture* tex = texRT1->asTexture();
REPORTER_ASSERT(reporter, nullptr != tex);
SkBitmap bitmap;
GrWrapTextureInBitmap(tex, 256, 256, false, &bitmap);
// No mipmaps initially
REPORTER_ASSERT(reporter, false == tex->texturePriv().hasMipMaps());
// Painting with downscale and medium filter quality should result in mipmap creation
SkSurface* surface = SkSurface::NewRenderTargetDirect(texRT2->asRenderTarget());
SkPaint paint;
paint.setFilterQuality(kMedium_SkFilterQuality);
surface->getCanvas()->scale(0.2f, 0.2f);
surface->getCanvas()->drawBitmap(bitmap, 0, 0, &paint);
context->flush();
REPORTER_ASSERT(reporter, true == tex->texturePriv().hasMipMaps());
REPORTER_ASSERT(reporter, false == tex->texturePriv().mipMapsAreDirty());
// Invalidating the contents of the bitmap should invalidate the mipmap, but not de-allocate
bitmap.notifyPixelsChanged();
REPORTER_ASSERT(reporter, true == tex->texturePriv().hasMipMaps());
REPORTER_ASSERT(reporter, true == tex->texturePriv().mipMapsAreDirty());
surface->unref();
texRT1->unref();
texRT2->unref();
}
}
#endif
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