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| 1 |
| 2 /* |
| 3 * Copyright 2014 Google Inc. |
| 4 * |
| 5 * Use of this source code is governed by a BSD-style license that can be |
| 6 * found in the LICENSE file. |
| 7 */ |
| 8 |
| 9 #include "GrContextFactory.h" |
| 10 |
| 11 #if SK_ANGLE |
| 12 #include "gl/angle/SkANGLEGLContext.h" |
| 13 #endif |
| 14 #include "gl/debug/SkDebugGLContext.h" |
| 15 #if SK_MESA |
| 16 #include "gl/mesa/SkMesaGLContext.h" |
| 17 #endif |
| 18 #include "gl/SkGLContext.h" |
| 19 #include "gl/SkNullGLContext.h" |
| 20 |
| 21 |
| 22 GrContext* GrContextFactory::get(GLContextType type, GrGLStandard forcedGpuAPI)
{ |
| 23 for (int i = 0; i < fContexts.count(); ++i) { |
| 24 if (forcedGpuAPI != kNone_GrGLStandard && |
| 25 forcedGpuAPI != fContexts[i].fGLContext->gl()->fStandard) |
| 26 continue; |
| 27 |
| 28 if (fContexts[i].fType == type) { |
| 29 fContexts[i].fGLContext->makeCurrent(); |
| 30 return fContexts[i].fGrContext; |
| 31 } |
| 32 } |
| 33 SkAutoTUnref<SkGLContext> glCtx; |
| 34 SkAutoTUnref<GrContext> grCtx; |
| 35 switch (type) { |
| 36 case kNVPR_GLContextType: // fallthru |
| 37 case kNative_GLContextType: |
| 38 glCtx.reset(SkCreatePlatformGLContext(forcedGpuAPI)); |
| 39 break; |
| 40 #ifdef SK_ANGLE |
| 41 case kANGLE_GLContextType: |
| 42 glCtx.reset(SkANGLEGLContext::Create(forcedGpuAPI)); |
| 43 break; |
| 44 #endif |
| 45 #ifdef SK_MESA |
| 46 case kMESA_GLContextType: |
| 47 glCtx.reset(SkMesaGLContext::Create(forcedGpuAPI)); |
| 48 break; |
| 49 #endif |
| 50 case kNull_GLContextType: |
| 51 glCtx.reset(SkNullGLContext::Create(forcedGpuAPI)); |
| 52 break; |
| 53 case kDebug_GLContextType: |
| 54 glCtx.reset(SkDebugGLContext::Create(forcedGpuAPI)); |
| 55 break; |
| 56 } |
| 57 if (NULL == glCtx.get()) { |
| 58 return NULL; |
| 59 } |
| 60 |
| 61 SkASSERT(glCtx->isValid()); |
| 62 |
| 63 // Ensure NVPR is available for the NVPR type and block it from other types. |
| 64 SkAutoTUnref<const GrGLInterface> glInterface(SkRef(glCtx->gl())); |
| 65 if (kNVPR_GLContextType == type) { |
| 66 if (!glInterface->hasExtension("GL_NV_path_rendering")) { |
| 67 return NULL; |
| 68 } |
| 69 } else { |
| 70 glInterface.reset(GrGLInterfaceRemoveNVPR(glInterface)); |
| 71 if (!glInterface) { |
| 72 return NULL; |
| 73 } |
| 74 } |
| 75 |
| 76 glCtx->makeCurrent(); |
| 77 GrBackendContext p3dctx = reinterpret_cast<GrBackendContext>(glInterface.get
()); |
| 78 grCtx.reset(GrContext::Create(kOpenGL_GrBackend, p3dctx, &fGlobalOptions)); |
| 79 if (!grCtx.get()) { |
| 80 return NULL; |
| 81 } |
| 82 GPUContext& ctx = fContexts.push_back(); |
| 83 ctx.fGLContext = glCtx.get(); |
| 84 ctx.fGLContext->ref(); |
| 85 ctx.fGrContext = grCtx.get(); |
| 86 ctx.fGrContext->ref(); |
| 87 ctx.fType = type; |
| 88 return ctx.fGrContext; |
| 89 } |
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