src/gpu/GrContext_Base.cpp

/*
 * Copyright 2019 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#include "GrContext_Base.h"

#include "GrBaseContextPriv.h"
#include "GrCaps.h"
#include "GrSkSLFPFactoryCache.h"

#ifdef SK_DISABLE_EXPLICIT_GPU_RESOURCE_ALLOCATION
static const bool kDefaultExplicitlyAllocateGPUResources = false;
#else
static const bool kDefaultExplicitlyAllocateGPUResources = true;
#endif

static int32_t next_id() {
    static std::atomic<int32_t> nextID{1};
    int32_t id;
    do {
        id = nextID++;
    } while (id == SK_InvalidGenID);
    return id;
}

GrContext_Base::GrContext_Base(GrBackendApi backend,
                               const GrContextOptions& options,
                               uint32_t contextID)
        : fBackend(backend)
        , fOptions(options)
        , fContextID(SK_InvalidGenID == contextID ? next_id() : contextID) {
}

GrContext_Base::~GrContext_Base() { }

bool GrContext_Base::init(sk_sp<const GrCaps> caps, sk_sp<GrSkSLFPFactoryCache> FPFactoryCache) {
    SkASSERT(caps && FPFactoryCache);

    fCaps = caps;
    fFPFactoryCache = FPFactoryCache;
    return true;
}

bool GrContext_Base::explicitlyAllocateGPUResources() const {
    if (GrContextOptions::Enable::kNo == fOptions.fExplicitlyAllocateGPUResources) {
        return false;
    }

    if (GrContextOptions::Enable::kYes == fOptions.fExplicitlyAllocateGPUResources) {
        return true;
    }

    return kDefaultExplicitlyAllocateGPUResources;
}

const GrCaps* GrContext_Base::caps() const { return fCaps.get(); }
sk_sp<const GrCaps> GrContext_Base::refCaps() const { return fCaps; }

sk_sp<GrSkSLFPFactoryCache> GrContext_Base::fpFactoryCache() { return fFPFactoryCache; }

///////////////////////////////////////////////////////////////////////////////////////////////////
sk_sp<const GrCaps> GrBaseContextPriv::refCaps() const {
    return fContext->refCaps();
}

sk_sp<GrSkSLFPFactoryCache> GrBaseContextPriv::fpFactoryCache() {
    return fContext->fpFactoryCache();
}