1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/skia/trunk/include/gpu/GrEffectUnitTest.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,101 @@
1.4 +/*
1.5 + * Copyright 2012 Google Inc.
1.6 + *
1.7 + * Use of this source code is governed by a BSD-style license that can be
1.8 + * found in the LICENSE file.
1.9 + */
1.10 +
1.11 +#ifndef GrEffectUnitTest_DEFINED
1.12 +#define GrEffectUnitTest_DEFINED
1.13 +
1.14 +#include "SkRandom.h"
1.15 +#include "SkTArray.h"
1.16 +#include "SkTypes.h"
1.17 +
1.18 +class SkMatrix;
1.19 +class GrDrawTargetCaps;
1.20 +
1.21 +namespace GrEffectUnitTest {
1.22 +// Used to access the dummy textures in TestCreate procs.
1.23 +enum {
1.24 + kSkiaPMTextureIdx = 0,
1.25 + kAlphaTextureIdx = 1,
1.26 +};
1.27 +
1.28 +/**
1.29 + * A helper for use in GrEffect::TestCreate functions.
1.30 + */
1.31 +const SkMatrix& TestMatrix(SkRandom*);
1.32 +
1.33 +}
1.34 +
1.35 +#if SK_ALLOW_STATIC_GLOBAL_INITIALIZERS
1.36 +
1.37 +class GrContext;
1.38 +class GrEffectRef;
1.39 +class GrTexture;
1.40 +
1.41 +class GrEffectTestFactory : public SkNoncopyable {
1.42 +public:
1.43 +
1.44 + typedef GrEffectRef* (*CreateProc)(SkRandom*,
1.45 + GrContext*,
1.46 + const GrDrawTargetCaps& caps,
1.47 + GrTexture* dummyTextures[]);
1.48 +
1.49 + GrEffectTestFactory(CreateProc createProc) {
1.50 + fCreateProc = createProc;
1.51 + GetFactories()->push_back(this);
1.52 + }
1.53 +
1.54 + static GrEffectRef* CreateStage(SkRandom* random,
1.55 + GrContext* context,
1.56 + const GrDrawTargetCaps& caps,
1.57 + GrTexture* dummyTextures[]) {
1.58 + uint32_t idx = random->nextRangeU(0, GetFactories()->count() - 1);
1.59 + GrEffectTestFactory* factory = (*GetFactories())[idx];
1.60 + return factory->fCreateProc(random, context, caps, dummyTextures);
1.61 + }
1.62 +
1.63 +private:
1.64 + CreateProc fCreateProc;
1.65 + static SkTArray<GrEffectTestFactory*, true>* GetFactories();
1.66 +};
1.67 +
1.68 +/** GrEffect subclasses should insert this macro in their declaration to be included in the
1.69 + * program generation unit test.
1.70 + */
1.71 +#define GR_DECLARE_EFFECT_TEST \
1.72 + static GrEffectTestFactory gTestFactory; \
1.73 + static GrEffectRef* TestCreate(SkRandom*, \
1.74 + GrContext*, \
1.75 + const GrDrawTargetCaps&, \
1.76 + GrTexture* dummyTextures[2])
1.77 +
1.78 +/** GrEffect subclasses should insert this macro in their implementation file. They must then
1.79 + * also implement this static function:
1.80 + * GrEffect* TestCreate(SkRandom*,
1.81 + * GrContext*,
1.82 + * const GrDrawTargetCaps&,
1.83 + * GrTexture* dummyTextures[2]);
1.84 + * dummyTextures[] are valid textures that can optionally be used to construct GrTextureAccesses.
1.85 + * The first texture has config kSkia8888_GrPixelConfig and the second has
1.86 + * kAlpha_8_GrPixelConfig. TestCreate functions are also free to create additional textures using
1.87 + * the GrContext.
1.88 + */
1.89 +#define GR_DEFINE_EFFECT_TEST(Effect) \
1.90 + GrEffectTestFactory Effect :: gTestFactory(Effect :: TestCreate)
1.91 +
1.92 +#else // !SK_ALLOW_STATIC_GLOBAL_INITIALIZERS
1.93 +
1.94 +// The unit test relies on static initializers. Just declare the TestCreate function so that
1.95 +// its definitions will compile.
1.96 +#define GR_DECLARE_EFFECT_TEST \
1.97 + static GrEffectRef* TestCreate(SkRandom*, \
1.98 + GrContext*, \
1.99 + const GrDrawTargetCaps&, \
1.100 + GrTexture* dummyTextures[2])
1.101 +#define GR_DEFINE_EFFECT_TEST(X)
1.102 +
1.103 +#endif // !SK_ALLOW_STATIC_GLOBAL_INITIALIZERS
1.104 +#endif
