GrVkSampler.h revision 7ec92413307c9da43c013d1e4e15716a44059810 
1/*
2* Copyright 2016 Google Inc.
3*
4* Use of this source code is governed by a BSD-style license that can be
5* found in the LICENSE file.
6*/
7
8#ifndef GrVkSampler_DEFINED
9#define GrVkSampler_DEFINED
10
11#include "GrVkResource.h"
12
13#include "vk/GrVkDefines.h"
14
15class GrTextureAccess;
16class GrTextureParams;
17class GrVkGpu;
18
19
20class GrVkSampler : public GrVkResource {
21public:
22    static GrVkSampler* Create(const GrVkGpu* gpu, const GrTextureParams&, uint32_t mipLevels);
23
24    VkSampler sampler() const { return fSampler; }
25
26    // Helpers for hashing GrVkSampler
27    static uint16_t GenerateKey(const GrTextureParams&, uint32_t mipLevels);
28
29    static const uint16_t& GetKey(const GrVkSampler& sampler) { return sampler.fKey; }
30    static uint32_t Hash(const uint16_t& key) { return key; }
31
32#ifdef SK_TRACE_VK_RESOURCES
33    void dumpInfo() const override {
34        SkDebugf("GrVkSampler: %d (%d refs)\n", fSampler, this->getRefCnt());
35    }
36#endif
37
38private:
39    GrVkSampler(VkSampler sampler, uint16_t key) : INHERITED(), fSampler(sampler), fKey(key) {}
40
41    void freeGPUData(const GrVkGpu* gpu) const override;
42
43    VkSampler  fSampler;
44    uint16_t   fKey;
45
46    typedef GrVkResource INHERITED;
47};
48
49#endif
50