| /* |
| * Copyright 2012 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "Test.h" |
| #include "SkGpuDevice.h" |
| #include "../../src/gpu/GrClipMaskManager.h" |
| |
| static const int X_SIZE = 12; |
| static const int Y_SIZE = 12; |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // note: this is unused |
| static GrTexture* createTexture(GrContext* context) { |
| unsigned char textureData[X_SIZE][Y_SIZE][4]; |
| |
| memset(textureData, 0, 4* X_SIZE * Y_SIZE); |
| |
| GrTextureDesc desc; |
| |
| // let Skia know we will be using this texture as a render target |
| desc.fFlags = kRenderTarget_GrTextureFlagBit; |
| desc.fConfig = kSkia8888_PM_GrPixelConfig; |
| desc.fWidth = X_SIZE; |
| desc.fHeight = Y_SIZE; |
| |
| // We are initializing the texture with zeros here |
| GrTexture* texture = context->createUncachedTexture(desc, textureData, 0); |
| if (!texture) { |
| return NULL; |
| } |
| |
| return texture; |
| } |
| |
| // Ensure that the 'getConservativeBounds' calls are returning bounds clamped |
| // to the render target |
| static void test_clip_bounds(skiatest::Reporter* reporter, GrContext* context) { |
| |
| static const int kXSize = 100; |
| static const int kYSize = 100; |
| |
| GrTextureDesc desc; |
| desc.fFlags = kRenderTarget_GrTextureFlagBit; |
| desc.fConfig = kAlpha_8_GrPixelConfig; |
| desc.fWidth = kXSize; |
| desc.fHeight = kYSize; |
| |
| GrTexture* texture = context->createUncachedTexture(desc, NULL, 0); |
| if (!texture) { |
| return; |
| } |
| |
| GrAutoUnref au(texture); |
| |
| SkIRect intScreen = SkIRect::MakeWH(kXSize, kYSize); |
| SkRect screen = SkRect::MakeWH(SkIntToScalar(kXSize), |
| SkIntToScalar(kYSize)); |
| SkRect clipRect(screen); |
| clipRect.outset(10, 10); |
| |
| // create a clip stack that will (trivially) reduce to a single rect that |
| // is larger than the screen |
| SkClipStack stack; |
| stack.clipDevRect(clipRect, SkRegion::kReplace_Op, false); |
| |
| bool isIntersectionOfRects = true; |
| SkRect devStackBounds; |
| |
| stack.getConservativeBounds(0, 0, kXSize, kYSize, |
| &devStackBounds, |
| &isIntersectionOfRects); |
| |
| // make sure that the SkClipStack is behaving itself |
| REPORTER_ASSERT(reporter, screen == devStackBounds); |
| REPORTER_ASSERT(reporter, isIntersectionOfRects); |
| |
| // wrap the SkClipStack in a GrClipData |
| GrClipData clipData; |
| clipData.fClipStack = &stack; |
| |
| SkIRect devGrClipDataBound; |
| clipData.getConservativeBounds(texture, |
| &devGrClipDataBound, |
| &isIntersectionOfRects); |
| |
| // make sure that GrClipData is behaving itself |
| REPORTER_ASSERT(reporter, intScreen == devGrClipDataBound); |
| REPORTER_ASSERT(reporter, isIntersectionOfRects); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // verify that the top state of the stack matches the passed in state |
| static void check_state(skiatest::Reporter* reporter, |
| const GrClipMaskCache& cache, |
| const SkClipStack& clip, |
| GrTexture* mask, |
| const GrIRect& bound) { |
| SkClipStack cacheClip; |
| cache.getLastClip(&cacheClip); |
| REPORTER_ASSERT(reporter, clip == cacheClip); |
| |
| REPORTER_ASSERT(reporter, mask == cache.getLastMask()); |
| |
| GrIRect cacheBound; |
| cache.getLastBound(&cacheBound); |
| REPORTER_ASSERT(reporter, bound == cacheBound); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // basic test of the cache's base functionality: |
| // push, pop, set, canReuse & getters |
| static void test_cache(skiatest::Reporter* reporter, GrContext* context) { |
| |
| if (false) { // avoid bit rot, suppress warning |
| createTexture(context); |
| } |
| GrClipMaskCache cache; |
| |
| cache.setContext(context); |
| |
| SkClipStack emptyClip; |
| emptyClip.reset(); |
| |
| GrIRect emptyBound; |
| emptyBound.setEmpty(); |
| |
| // check initial state |
| check_state(reporter, cache, emptyClip, NULL, emptyBound); |
| |
| // set the current state |
| GrIRect bound1; |
| bound1.set(0, 0, 100, 100); |
| |
| SkClipStack clip1(bound1); |
| |
| GrTextureDesc desc; |
| desc.fFlags = kRenderTarget_GrTextureFlagBit; |
| desc.fWidth = X_SIZE; |
| desc.fHeight = Y_SIZE; |
| desc.fConfig = kSkia8888_PM_GrPixelConfig; |
| |
| cache.acquireMask(clip1, desc, bound1); |
| |
| GrTexture* texture1 = cache.getLastMask(); |
| REPORTER_ASSERT(reporter, texture1); |
| if (NULL == texture1) { |
| return; |
| } |
| |
| // check that the set took |
| check_state(reporter, cache, clip1, texture1, bound1); |
| REPORTER_ASSERT(reporter, 1 == texture1->getRefCnt()); |
| |
| // push the state |
| cache.push(); |
| |
| // verify that the pushed state is initially empty |
| check_state(reporter, cache, emptyClip, NULL, emptyBound); |
| REPORTER_ASSERT(reporter, 1 == texture1->getRefCnt()); |
| |
| // modify the new state |
| GrIRect bound2; |
| bound2.set(-10, -10, 10, 10); |
| |
| SkClipStack clip2(bound2); |
| |
| cache.acquireMask(clip2, desc, bound2); |
| |
| GrTexture* texture2 = cache.getLastMask(); |
| REPORTER_ASSERT(reporter, texture2); |
| if (NULL == texture2) { |
| return; |
| } |
| |
| // check that the changes took |
| check_state(reporter, cache, clip2, texture2, bound2); |
| REPORTER_ASSERT(reporter, 1 == texture1->getRefCnt()); |
| REPORTER_ASSERT(reporter, 1 == texture2->getRefCnt()); |
| |
| // check to make sure canReuse works |
| REPORTER_ASSERT(reporter, cache.canReuse(clip2, 10, 10)); |
| REPORTER_ASSERT(reporter, !cache.canReuse(clip1, 10, 10)); |
| |
| // pop the state |
| cache.pop(); |
| |
| // verify that the old state is restored |
| check_state(reporter, cache, clip1, texture1, bound1); |
| REPORTER_ASSERT(reporter, 1 == texture1->getRefCnt()); |
| REPORTER_ASSERT(reporter, 1 == texture2->getRefCnt()); |
| |
| // manually clear the state |
| cache.reset(); |
| |
| // verify it is now empty |
| check_state(reporter, cache, emptyClip, NULL, emptyBound); |
| REPORTER_ASSERT(reporter, 1 == texture1->getRefCnt()); |
| REPORTER_ASSERT(reporter, 1 == texture2->getRefCnt()); |
| |
| // pop again - so there is no state |
| cache.pop(); |
| |
| #if !defined(SK_DEBUG) |
| // verify that the getters don't crash |
| // only do in release since it generates asserts in debug |
| check_state(reporter, cache, emptyClip, NULL, emptyBound); |
| #endif |
| REPORTER_ASSERT(reporter, 1 == texture1->getRefCnt()); |
| REPORTER_ASSERT(reporter, 1 == texture2->getRefCnt()); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| static void TestClipCache(skiatest::Reporter* reporter, GrContext* context) { |
| |
| test_cache(reporter, context); |
| test_clip_bounds(reporter, context); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| #include "TestClassDef.h" |
| DEFINE_GPUTESTCLASS("ClipCache", ClipCacheTestClass, TestClipCache) |