| |
| /* |
| * Copyright 2015 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "GrContext.h" |
| #include "SkSurface.h" |
| #include "WindowContext.h" |
| |
| #include "gl/GrGLDefines.h" |
| |
| #include "gl/GrGLUtil.h" |
| #include "GrRenderTarget.h" |
| #include "GrContext.h" |
| |
| #include "SkCanvas.h" |
| #include "SkImage_Base.h" |
| |
| namespace sk_app { |
| |
| sk_sp<SkSurface> WindowContext::createRenderSurface(sk_sp<GrRenderTarget> rt, int colorBits) { |
| auto flags = (fSurfaceProps.flags() & ~SkSurfaceProps::kGammaCorrect_Flag) | |
| (GrPixelConfigIsSRGB(fPixelConfig) ? SkSurfaceProps::kGammaCorrect_Flag : 0); |
| SkSurfaceProps props(flags, fSurfaceProps.pixelGeometry()); |
| |
| if (!this->isGpuContext() || colorBits > 24 || |
| kRGBA_F16_SkColorType == fDisplayParams.fColorType) { |
| // If we're rendering to F16, we need an off-screen surface - the current render |
| // target is most likely the wrong format. |
| // |
| // If we're rendering raster data or using a deep (10-bit or higher) surface, we probably |
| // need an off-screen surface. 10-bit, in particular, has strange gamma behavior. |
| SkImageInfo info = SkImageInfo::Make(fWidth, fHeight, |
| fDisplayParams.fColorType, |
| kUnknown_SkAlphaType, |
| fDisplayParams.fProfileType); |
| return SkSurface::MakeRenderTarget(fContext, SkBudgeted::kNo, info, |
| fDisplayParams.fMSAASampleCount, &props); |
| } else { |
| return SkSurface::MakeRenderTargetDirect(rt.get(), &props); |
| } |
| } |
| |
| void WindowContext::presentRenderSurface(sk_sp<SkSurface> renderSurface, sk_sp<GrRenderTarget> rt, |
| int colorBits) { |
| if (!this->isGpuContext() || colorBits > 24 || |
| kRGBA_F16_SkColorType == fDisplayParams.fColorType) { |
| // We made/have an off-screen surface. Get the contents as an SkImage: |
| SkImageInfo info = SkImageInfo::Make(fWidth, fHeight, |
| fDisplayParams.fColorType, |
| kUnknown_SkAlphaType, |
| fDisplayParams.fProfileType); |
| SkBitmap bm; |
| bm.allocPixels(info); |
| renderSurface->getCanvas()->readPixels(&bm, 0, 0); |
| SkPixmap pm; |
| bm.peekPixels(&pm); |
| sk_sp<SkImage> image(SkImage::MakeTextureFromPixmap(fContext, pm, |
| SkBudgeted::kNo)); |
| GrTexture* texture = as_IB(image)->peekTexture(); |
| SkASSERT(texture); |
| |
| // With ten-bit output, we need to manually apply the gamma of the output device |
| // (unless we're in non-gamma correct mode, in which case our data is already |
| // fake-sRGB, like we're expected to put in the 10-bit buffer): |
| bool doGamma = (colorBits == 30) && SkImageInfoIsGammaCorrect(info); |
| fContext->applyGamma(rt.get(), texture, doGamma ? 1.0f / 2.2f : 1.0f); |
| } |
| } |
| |
| } //namespace sk_app |