b918e9865a
This path is not used as an include path by public.bzl nor by Chromium. Remove this include path to avoid breaking these clients and generally make these includes more specific. Change-Id: I9391d38d5241870086bf47cb8e49146736dc4ded Reviewed-on: https://skia-review.googlesource.com/129561 Reviewed-by: Greg Daniel <egdaniel@google.com> Commit-Queue: Ben Wagner <bungeman@google.com>
143 lines
4.0 KiB
C++
143 lines
4.0 KiB
C++
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/*
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* Copyright 2015 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include <Windows.h>
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#include <GL/gl.h>
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#include "../GLWindowContext.h"
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#include "gl/GrGLInterface.h"
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#include "WindowContextFactory_win.h"
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#include "win/SkWGL.h"
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using sk_app::GLWindowContext;
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using sk_app::DisplayParams;
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namespace {
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class GLWindowContext_win : public GLWindowContext {
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public:
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GLWindowContext_win(HWND, const DisplayParams&);
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~GLWindowContext_win() override;
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protected:
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void onSwapBuffers() override;
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sk_sp<const GrGLInterface> onInitializeContext() override;
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void onDestroyContext() override;
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private:
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HWND fHWND;
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HGLRC fHGLRC;
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typedef GLWindowContext INHERITED;
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};
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GLWindowContext_win::GLWindowContext_win(HWND wnd, const DisplayParams& params)
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: INHERITED(params)
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, fHWND(wnd)
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, fHGLRC(NULL) {
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// any config code here (particularly for msaa)?
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this->initializeContext();
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}
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GLWindowContext_win::~GLWindowContext_win() {
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this->destroyContext();
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}
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sk_sp<const GrGLInterface> GLWindowContext_win::onInitializeContext() {
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HDC dc = GetDC(fHWND);
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fHGLRC = SkCreateWGLContext(dc, fDisplayParams.fMSAASampleCount, false /* deepColor */,
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kGLPreferCompatibilityProfile_SkWGLContextRequest);
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if (NULL == fHGLRC) {
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return nullptr;
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}
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// Look to see if RenderDoc is attached. If so, re-create the context with a core profile
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if (wglMakeCurrent(dc, fHGLRC)) {
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auto interface = GrGLMakeNativeInterface();
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bool renderDocAttached = interface->hasExtension("GL_EXT_debug_tool");
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interface.reset(nullptr);
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if (renderDocAttached) {
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wglDeleteContext(fHGLRC);
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fHGLRC = SkCreateWGLContext(dc, fDisplayParams.fMSAASampleCount, false /* deepColor */,
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kGLPreferCoreProfile_SkWGLContextRequest);
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if (NULL == fHGLRC) {
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return nullptr;
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}
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}
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}
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if (wglMakeCurrent(dc, fHGLRC)) {
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glClearStencil(0);
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glClearColor(0, 0, 0, 0);
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glStencilMask(0xffffffff);
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glClear(GL_STENCIL_BUFFER_BIT | GL_COLOR_BUFFER_BIT);
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// use DescribePixelFormat to get the stencil and color bit depth.
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int pixelFormat = GetPixelFormat(dc);
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PIXELFORMATDESCRIPTOR pfd;
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DescribePixelFormat(dc, pixelFormat, sizeof(pfd), &pfd);
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fStencilBits = pfd.cStencilBits;
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// Get sample count if the MSAA WGL extension is present
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SkWGLExtensions extensions;
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if (extensions.hasExtension(dc, "WGL_ARB_multisample")) {
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static const int kSampleCountAttr = SK_WGL_SAMPLES;
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extensions.getPixelFormatAttribiv(dc,
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pixelFormat,
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0,
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1,
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&kSampleCountAttr,
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&fSampleCount);
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fSampleCount = SkTMax(fSampleCount, 1);
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} else {
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fSampleCount = 1;
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}
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RECT rect;
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GetClientRect(fHWND, &rect);
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fWidth = rect.right - rect.left;
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fHeight = rect.bottom - rect.top;
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glViewport(0, 0, fWidth, fHeight);
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}
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return GrGLMakeNativeInterface();
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}
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void GLWindowContext_win::onDestroyContext() {
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wglDeleteContext(fHGLRC);
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fHGLRC = NULL;
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}
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void GLWindowContext_win::onSwapBuffers() {
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HDC dc = GetDC((HWND)fHWND);
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SwapBuffers(dc);
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ReleaseDC((HWND)fHWND, dc);
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}
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} // anonymous namespace
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namespace sk_app {
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namespace window_context_factory {
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WindowContext* NewGLForWin(HWND wnd, const DisplayParams& params) {
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GLWindowContext_win* ctx = new GLWindowContext_win(wnd, params);
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if (!ctx->isValid()) {
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delete ctx;
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return nullptr;
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}
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return ctx;
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}
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} // namespace window_context_factory
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} // namespace sk_app
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