97 lines
2.6 KiB
C++
97 lines
2.6 KiB
C++
/*
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* Copyright 2014 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef DMGpuSupport_DEFINED
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#define DMGpuSupport_DEFINED
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// Provides Ganesh to DM,
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// or if it's not available, fakes it enough so most code doesn't have to know that.
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#include "SkSurface.h"
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#if SK_SUPPORT_GPU
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// Ganesh is available. Yippee!
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# include "GrContext.h"
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# include "GrContextFactory.h"
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namespace DM {
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static const bool kGPUDisabled = false;
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static inline SkSurface* NewGpuSurface(GrContextFactory* grFactory,
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GrContextFactory::GLContextType type,
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GrGLStandard gpuAPI,
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SkImageInfo info,
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int samples,
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bool useDFText) {
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uint32_t flags = useDFText ? SkSurfaceProps::kUseDistanceFieldFonts_Flag : 0;
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SkSurfaceProps props(flags, SkSurfaceProps::kLegacyFontHost_InitType);
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return SkSurface::NewRenderTarget(grFactory->get(type, gpuAPI), SkSurface::kNo_Budgeted,
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info, samples, &props);
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}
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} // namespace DM
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#else// !SK_SUPPORT_GPU
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// Ganesh is not available. Fake it.
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enum GrGLStandard {
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kNone_GrGLStandard,
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kGL_GrGLStandard,
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kGLES_GrGLStandard
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};
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static const int kGrGLStandardCnt = 3;
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class GrContext {
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public:
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void dumpCacheStats(SkString*) const {}
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void dumpGpuStats(SkString*) const {}
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};
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struct GrContextOptions {};
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class GrContextFactory {
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public:
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GrContextFactory() {};
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explicit GrContextFactory(const GrContextOptions&) {}
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typedef int GLContextType;
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static const GLContextType kANGLE_GLContextType = 0,
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kDebug_GLContextType = 0,
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kMESA_GLContextType = 0,
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kNVPR_GLContextType = 0,
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kNative_GLContextType = 0,
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kNull_GLContextType = 0;
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static const int kGLContextTypeCnt = 1;
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void destroyContexts() {}
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void abandonContexts() {}
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};
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namespace DM {
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static const bool kGPUDisabled = true;
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static inline SkSurface* NewGpuSurface(GrContextFactory*,
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GrContextFactory::GLContextType,
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GrGLStandard,
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SkImageInfo,
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int,
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bool) {
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return NULL;
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}
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} // namespace DM
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#endif//SK_SUPPORT_GPU
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#endif//DMGpuSupport_DEFINED
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