| |
| /* |
| * Copyright 2016 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "include/core/SkSurface.h" |
| #include "include/core/SkTypes.h" |
| #include "tools/sk_app/RasterWindowContext.h" |
| #include "tools/sk_app/android/WindowContextFactory_android.h" |
| |
| using sk_app::RasterWindowContext; |
| using sk_app::DisplayParams; |
| |
| namespace { |
| class RasterWindowContext_android : public RasterWindowContext { |
| public: |
| RasterWindowContext_android(ANativeWindow*, const DisplayParams& params); |
| |
| sk_sp<SkSurface> getBackbufferSurface() override; |
| void swapBuffers() override; |
| |
| bool isValid() override { return SkToBool(fNativeWindow); } |
| void resize(int w, int h) override; |
| void setDisplayParams(const DisplayParams& params) override; |
| |
| private: |
| void setBuffersGeometry(); |
| sk_sp<SkSurface> fBackbufferSurface = nullptr; |
| ANativeWindow* fNativeWindow = nullptr; |
| ANativeWindow_Buffer fBuffer; |
| ARect fBounds; |
| |
| using INHERITED = RasterWindowContext; |
| }; |
| |
| RasterWindowContext_android::RasterWindowContext_android(ANativeWindow* window, |
| const DisplayParams& params) |
| : INHERITED(params) { |
| fNativeWindow = window; |
| fWidth = ANativeWindow_getWidth(fNativeWindow); |
| fHeight = ANativeWindow_getHeight(fNativeWindow); |
| this->setBuffersGeometry(); |
| } |
| |
| void RasterWindowContext_android::setBuffersGeometry() { |
| int32_t format = 0; |
| switch(fDisplayParams.fColorType) { |
| case kRGBA_8888_SkColorType: |
| format = WINDOW_FORMAT_RGBA_8888; |
| break; |
| case kRGB_565_SkColorType: |
| format = WINDOW_FORMAT_RGB_565; |
| break; |
| default: |
| SK_ABORT("Unsupported Android color type"); |
| } |
| ANativeWindow_setBuffersGeometry(fNativeWindow, fWidth, fHeight, format); |
| } |
| |
| void RasterWindowContext_android::setDisplayParams(const DisplayParams& params) { |
| fDisplayParams = params; |
| this->setBuffersGeometry(); |
| } |
| |
| void RasterWindowContext_android::resize(int w, int h) { |
| fWidth = w; |
| fHeight = h; |
| this->setBuffersGeometry(); |
| } |
| |
| sk_sp<SkSurface> RasterWindowContext_android::getBackbufferSurface() { |
| if (nullptr == fBackbufferSurface) { |
| ANativeWindow_lock(fNativeWindow, &fBuffer, &fBounds); |
| const int bytePerPixel = fBuffer.format == WINDOW_FORMAT_RGB_565 ? 2 : 4; |
| SkImageInfo info = SkImageInfo::Make(fWidth, fHeight, |
| fDisplayParams.fColorType, |
| kPremul_SkAlphaType, |
| fDisplayParams.fColorSpace); |
| fBackbufferSurface = SkSurface::MakeRasterDirect( |
| info, fBuffer.bits, fBuffer.stride * bytePerPixel, nullptr); |
| } |
| return fBackbufferSurface; |
| } |
| |
| |
| void RasterWindowContext_android::swapBuffers() { |
| ANativeWindow_unlockAndPost(fNativeWindow); |
| fBackbufferSurface.reset(nullptr); |
| } |
| } // anonymous namespace |
| |
| namespace sk_app { |
| namespace window_context_factory { |
| |
| std::unique_ptr<WindowContext> MakeRasterForAndroid(ANativeWindow* window, |
| const DisplayParams& params) { |
| std::unique_ptr<WindowContext> ctx(new RasterWindowContext_android(window, params)); |
| if (!ctx->isValid()) { |
| return nullptr; |
| } |
| return ctx; |
| } |
| |
| } |
| } // namespace sk_app |