| |
| /* |
| * 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::createOffscreenSurface(bool forceSRGB) { |
| return createSurface(nullptr, 0, true, forceSRGB); |
| } |
| |
| sk_sp<SkSurface> WindowContext::createRenderSurface(const GrBackendRenderTargetDesc& desc, |
| int colorBits) { |
| return createSurface(&desc, colorBits, false, false); |
| } |
| |
| sk_sp<SkSurface> WindowContext::createSurface( |
| const GrBackendRenderTargetDesc* rtDesc, int colorBits, bool offscreen, bool forceSRGB) { |
| if (!this->isGpuContext() || colorBits > 24 || offscreen || |
| 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, |
| kPremul_SkAlphaType, |
| forceSRGB ? SkColorSpace::MakeNamed(SkColorSpace::kSRGB_Named) |
| : fDisplayParams.fColorSpace |
| ); |
| if (this->isGpuContext()) { |
| return SkSurface::MakeRenderTarget(fContext, SkBudgeted::kNo, info, |
| fDisplayParams.fMSAASampleCount, &fSurfaceProps); |
| } else { |
| return SkSurface::MakeRaster(info, &fSurfaceProps); |
| } |
| } else { |
| sk_sp<SkColorSpace> colorSpace = GrPixelConfigIsSRGB(rtDesc->fConfig) |
| ? SkColorSpace::MakeNamed(SkColorSpace::kSRGB_Named) : nullptr; |
| return SkSurface::MakeFromBackendRenderTarget(fContext, *rtDesc, colorSpace, |
| &fSurfaceProps); |
| } |
| } |
| |
| } //namespace sk_app |