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| 1 | |
| 2 /* | |
| 3 * Copyright 2015 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 "GrContext.h" | |
| 10 #include "SkSurface.h" | |
| 11 #include "GLWindowContext.h" | |
| 12 | |
| 13 #include "gl/GrGLDefines.h" | |
| 14 | |
| 15 #include "gl/GrGLUtil.h" | |
| 16 #include "GrRenderTarget.h" | |
| 17 #include "GrContext.h" | |
| 18 | |
| 19 #include "SkCanvas.h" | |
| 20 #include "SkImage_Base.h" | |
| 21 | |
| 22 namespace sk_app { | |
| 23 | |
| 24 GLWindowContext::GLWindowContext(void* platformData, const DisplayParams& params
) | |
| 25 : WindowContext() | |
| 26 , fBackendContext(nullptr) | |
| 27 , fRenderTarget(nullptr) | |
| 28 , fSurface(nullptr) { | |
| 29 } | |
| 30 | |
| 31 void GLWindowContext::initializeContext(void* platformData, const DisplayParams&
params) { | |
| 32 | |
| 33 this->onInitializeContext(platformData, params); | |
| 34 | |
| 35 fDisplayParams = params; | |
| 36 | |
| 37 SkAutoTUnref<const GrGLInterface> glInterface; | |
| 38 glInterface.reset(GrGLCreateNativeInterface()); | |
| 39 fBackendContext.reset(GrGLInterfaceRemoveNVPR(glInterface.get())); | |
| 40 | |
| 41 SkASSERT(nullptr == fContext); | |
| 42 fContext = GrContext::Create(kOpenGL_GrBackend, (GrBackendContext)fBackendCo
ntext.get()); | |
| 43 | |
| 44 // We may not have real sRGB support (ANGLE, in particular), so check for | |
| 45 // that, and fall back to L32: | |
| 46 // | |
| 47 // ... and, if we're using a 10-bit/channel FB0, it doesn't do sRGB conversi
on on write, | |
| 48 // so pretend that it's non-sRGB 8888: | |
| 49 fPixelConfig = fContext->caps()->srgbSupport() && | |
| 50 SkColorAndProfileAreGammaCorrect(fDisplayParams.fColorType, | |
| 51 fDisplayParams.fProfileType)
&& | |
| 52 (fColorBits != 30) ? kSkiaGamma8888_GrPixelConfig : kSkia8888
_GrPixelConfig; | |
| 53 } | |
| 54 | |
| 55 void GLWindowContext::destroyContext() { | |
| 56 fSurface.reset(nullptr); | |
| 57 fRenderTarget.reset(nullptr); | |
| 58 | |
| 59 if (fContext) { | |
| 60 // in case we have outstanding refs to this guy (lua?) | |
| 61 fContext->abandonContext(); | |
| 62 fContext->unref(); | |
| 63 fContext = nullptr; | |
| 64 } | |
| 65 | |
| 66 fBackendContext.reset(nullptr); | |
| 67 | |
| 68 this->onDestroyContext(); | |
| 69 } | |
| 70 | |
| 71 sk_sp<SkSurface> GLWindowContext::getBackbufferSurface() { | |
| 72 if (nullptr == fSurface) { | |
| 73 fActualColorBits = SkTMax(fColorBits, 24); | |
| 74 | |
| 75 if (fContext) { | |
| 76 GrBackendRenderTargetDesc desc; | |
| 77 desc.fWidth = this->fWidth; | |
| 78 desc.fHeight = this->fHeight; | |
| 79 desc.fConfig = fPixelConfig; | |
| 80 desc.fOrigin = kBottomLeft_GrSurfaceOrigin; | |
| 81 desc.fSampleCnt = fSampleCount; | |
| 82 desc.fStencilBits = fStencilBits; | |
| 83 GrGLint buffer; | |
| 84 GR_GL_CALL(fBackendContext, GetIntegerv(GR_GL_FRAMEBUFFER_BINDING, &
buffer)); | |
| 85 desc.fRenderTargetHandle = buffer; | |
| 86 fRenderTarget.reset(fContext->textureProvider()->wrapBackendRenderTa
rget(desc)); | |
| 87 | |
| 88 fSurface = this->createRenderSurface(fRenderTarget, fActualColorBits
); | |
| 89 } | |
| 90 } | |
| 91 | |
| 92 return fSurface; | |
| 93 } | |
| 94 | |
| 95 void GLWindowContext::swapBuffers() { | |
| 96 this->presentRenderSurface(fSurface, fRenderTarget, fActualColorBits); | |
| 97 this->onSwapBuffers(); | |
| 98 } | |
| 99 | |
| 100 void GLWindowContext::resize(uint32_t w, uint32_t h) { | |
| 101 this->destroyContext(); | |
| 102 | |
| 103 this->initializeContext(nullptr, fDisplayParams); | |
| 104 } | |
| 105 | |
| 106 void GLWindowContext::setDisplayParams(const DisplayParams& params) { | |
| 107 this->destroyContext(); | |
| 108 | |
| 109 this->initializeContext(nullptr, params); | |
| 110 } | |
| 111 | |
| 112 } //namespace sk_app | |
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Chromium Code Reviews
Issue 1990893002:
Revert of Add OpenGL context to Viewer. (Closed)
Base URL: https://skia.googlesource.com/skia.git@master