aboutsummaryrefslogtreecommitdiffhomepage
path: root/bench/GrResourceCacheBench.cpp
blob: 6a7c89acf8925fbe6045da3daf4512fb4ea259d4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248

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

#if SK_SUPPORT_GPU

#include "Benchmark.h"
#include "GrGpuResource.h"
#include "GrContext.h"
#include "GrGpu.h"
#include "GrResourceCache.h"
#include "GrStencilBuffer.h"
#include "GrTexture.h"
#include "GrTexturePriv.h"
#include "SkCanvas.h"

enum {
    CACHE_SIZE_COUNT = 2048,
    CACHE_SIZE_BYTES = 2 * 1024 * 1024,
};

class StencilResource : public GrGpuResource {
public:
    SK_DECLARE_INST_COUNT(StencilResource);
    StencilResource(GrGpu* gpu, int id)
        : INHERITED(gpu, false)
        , fID(id) {
        this->registerWithCache();
    }

    virtual ~StencilResource() { this->release(); }

    virtual size_t gpuMemorySize() const SK_OVERRIDE {
        return 100 + ((fID % 1 == 0) ? -5 : 6);
    }

    static GrResourceKey ComputeKey(int width, int height, int sampleCnt) {
        return GrStencilBuffer::ComputeKey(width, height, sampleCnt);
    }

    int fID;

private:
    typedef GrGpuResource INHERITED;
};

class TextureResource : public GrGpuResource {
public:
    SK_DECLARE_INST_COUNT(TextureResource);
    TextureResource(GrGpu* gpu, int id)
        : INHERITED(gpu, false)
        , fID(id) {
        this->registerWithCache();
    }

    virtual ~TextureResource() { this->release(); }

    virtual size_t gpuMemorySize() const SK_OVERRIDE {
        return 100 + ((fID % 1 == 0) ? -40 : 33);
    }

    static GrResourceKey ComputeKey(const GrTextureDesc& desc) {
        GrCacheID::Key key;
        memset(&key, 0, sizeof(key));
        key.fData32[0] = (desc.fWidth) | (desc.fHeight << 16);
        key.fData32[1] = desc.fConfig | desc.fSampleCnt << 16;
        key.fData32[2] = desc.fFlags;
        static int gType = GrResourceKey::GenerateResourceType();
        static int gDomain = GrCacheID::GenerateDomain();
        return GrResourceKey(GrCacheID(gDomain, key), gType, 0);
    }

    int fID;

private:
    typedef GrGpuResource INHERITED;
};

static void get_stencil(int i, int* w, int* h, int* s) {
    *w = i % 1024;
    *h = i * 2 % 1024;
    *s = i % 1 == 0 ? 0 : 4;
}

static void get_texture_desc(int i, GrTextureDesc* desc) {
    desc->fFlags = kRenderTarget_GrTextureFlagBit |
        kNoStencil_GrTextureFlagBit;
    desc->fWidth  = i % 1024;
    desc->fHeight = i * 2 % 1024;
    desc->fConfig = static_cast<GrPixelConfig>(i % (kLast_GrPixelConfig + 1));
    desc->fSampleCnt = i % 1 == 0 ? 0 : 4;
}

static void populate_cache(GrResourceCache* cache, GrGpu* gpu, int resourceCount) {
    for (int i = 0; i < resourceCount; ++i) {
        int w, h, s;
        get_stencil(i, &w, &h, &s);
        GrResourceKey key = GrStencilBuffer::ComputeKey(w, h, s);
        GrGpuResource* resource = SkNEW_ARGS(StencilResource, (gpu, i));
        cache->purgeAsNeeded(1, resource->gpuMemorySize());
        cache->addResource(key, resource);
        resource->unref();
    }

    for (int i = 0; i < resourceCount; ++i) {
        GrTextureDesc desc;
        get_texture_desc(i, &desc);
        GrResourceKey key =  TextureResource::ComputeKey(desc);
        GrGpuResource* resource = SkNEW_ARGS(TextureResource, (gpu, i));
        cache->purgeAsNeeded(1, resource->gpuMemorySize());
        cache->addResource(key, resource);
        resource->unref();
    }
}

static void check_cache_contents_or_die(GrResourceCache* cache, int k) {
    // Benchmark find calls that succeed.
    {
        GrTextureDesc desc;
        get_texture_desc(k, &desc);
        GrResourceKey key = TextureResource::ComputeKey(desc);
        GrGpuResource* item = cache->find(key);
        if (NULL == item) {
            SkFAIL("cache add does not work as expected");
            return;
        }
        if (static_cast<TextureResource*>(item)->fID != k) {
            SkFAIL("cache add does not work as expected");
            return;
        }
    }
    {
        int w, h, s;
        get_stencil(k, &w, &h, &s);
        GrResourceKey key = StencilResource::ComputeKey(w, h, s);
        GrGpuResource* item = cache->find(key);
        if (NULL == item) {
            SkFAIL("cache add does not work as expected");
            return;
        }
        if (static_cast<TextureResource*>(item)->fID != k) {
            SkFAIL("cache add does not work as expected");
            return;
        }
    }

    // Benchmark also find calls that always fail.
    {
        GrTextureDesc desc;
        get_texture_desc(k, &desc);
        desc.fHeight |= 1;
        GrResourceKey key = TextureResource::ComputeKey(desc);
        GrGpuResource* item = cache->find(key);
        if (item) {
            SkFAIL("cache add does not work as expected");
            return;
        }
    }
    {
        int w, h, s;
        get_stencil(k, &w, &h, &s);
        h |= 1;
        GrResourceKey key = StencilResource::ComputeKey(w, h, s);
        GrGpuResource* item = cache->find(key);
        if (item) {
            SkFAIL("cache add does not work as expected");
            return;
        }
    }
}

class GrResourceCacheBenchAdd : public Benchmark {
    enum {
        RESOURCE_COUNT = CACHE_SIZE_COUNT / 2,
        DUPLICATE_COUNT = CACHE_SIZE_COUNT / 4,
    };

public:
    virtual bool isSuitableFor(Backend backend) SK_OVERRIDE {
        return backend == kGPU_Backend;
    }

protected:
    virtual const char* onGetName() SK_OVERRIDE {
        return "grresourcecache_add";
    }

    virtual void onDraw(const int loops, SkCanvas* canvas) SK_OVERRIDE {
        GrGpu* gpu = canvas->getGrContext()->getGpu();

        for (int i = 0; i < loops; ++i) {
            GrResourceCache cache(gpu->caps(), CACHE_SIZE_COUNT, CACHE_SIZE_BYTES);
            populate_cache(&cache, gpu, DUPLICATE_COUNT);
            populate_cache(&cache, gpu, RESOURCE_COUNT);

            // Check that cache works.
            for (int k = 0; k < RESOURCE_COUNT; k += 33) {
                check_cache_contents_or_die(&cache, k);
            }
            cache.purgeAllUnlocked();
        }
    }

private:
    typedef Benchmark INHERITED;
};

class GrResourceCacheBenchFind : public Benchmark {
    enum {
        RESOURCE_COUNT = (CACHE_SIZE_COUNT / 2) - 100,
        DUPLICATE_COUNT = 100
    };

public:
    virtual bool isSuitableFor(Backend backend) SK_OVERRIDE {
        return backend == kGPU_Backend;
    }

protected:
    virtual const char* onGetName() SK_OVERRIDE {
        return "grresourcecache_find";
    }

    virtual void onDraw(const int loops, SkCanvas* canvas) SK_OVERRIDE {
        GrGpu* gpu = canvas->getGrContext()->getGpu();
        GrResourceCache cache(gpu->caps(), CACHE_SIZE_COUNT, CACHE_SIZE_BYTES);
        populate_cache(&cache, gpu, DUPLICATE_COUNT);
        populate_cache(&cache, gpu, RESOURCE_COUNT);

        for (int i = 0; i < loops; ++i) {
            for (int k = 0; k < RESOURCE_COUNT; ++k) {
                check_cache_contents_or_die(&cache, k);
            }
        }
    }

private:
    typedef Benchmark INHERITED;
};

DEF_BENCH( return new GrResourceCacheBenchAdd(); )
DEF_BENCH( return new GrResourceCacheBenchFind(); )

#endif