443ec1b794
Also removes fWidth and fHeight from Window and instead calls into WindowContent to get these values. BUG=skia: Change-Id: I72ee506004b7da73db9abb607a3bc82edfcf7d43 Reviewed-on: https://skia-review.googlesource.com/8795 Commit-Queue: Chris Dalton <csmartdalton@google.com> Reviewed-by: Jim Van Verth <jvanverth@google.com> Reviewed-by: Yuqian Li <liyuqian@google.com>
115 lines
2.9 KiB
C++
115 lines
2.9 KiB
C++
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/*
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* Copyright 2016 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 "../GLWindowContext.h"
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#include "WindowContextFactory_unix.h"
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#include <GL/gl.h>
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using sk_app::window_context_factory::XlibWindowInfo;
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using sk_app::DisplayParams;
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using sk_app::GLWindowContext;
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namespace {
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class GLWindowContext_xlib : public GLWindowContext {
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public:
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GLWindowContext_xlib(const XlibWindowInfo&, const DisplayParams&);
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~GLWindowContext_xlib() override;
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void onSwapBuffers() override;
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void onDestroyContext() override;
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protected:
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void onInitializeContext() override;
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private:
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GLWindowContext_xlib(void*, const DisplayParams&);
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Display* fDisplay;
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XWindow fWindow;
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XVisualInfo* fVisualInfo;
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GLXContext fGLContext;
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};
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GLWindowContext_xlib::GLWindowContext_xlib(const XlibWindowInfo& winInfo, const DisplayParams& params)
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: GLWindowContext(params)
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, fDisplay(winInfo.fDisplay)
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, fWindow(winInfo.fWindow)
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, fVisualInfo(winInfo.fVisualInfo)
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, fGLContext() {
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fWidth = winInfo.fWidth;
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fHeight = winInfo.fHeight;
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this->initializeContext();
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}
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void GLWindowContext_xlib::onInitializeContext() {
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// any config code here (particularly for msaa)?
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SkASSERT(fDisplay);
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fGLContext = glXCreateContext(fDisplay, fVisualInfo, nullptr, GL_TRUE);
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if (!fGLContext) {
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return;
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}
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if (glXMakeCurrent(fDisplay, fWindow, fGLContext)) {
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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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glXGetConfig(fDisplay, fVisualInfo, GLX_STENCIL_SIZE, &fStencilBits);
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glXGetConfig(fDisplay, fVisualInfo, GLX_SAMPLES_ARB, &fSampleCount);
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XWindow root;
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int x, y;
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unsigned int border_width, depth;
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XGetGeometry(fDisplay, fWindow, &root, &x, &y,
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(unsigned int*)&fWidth, (unsigned int*)&fHeight, &border_width, &depth);
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glViewport(0, 0, fWidth, fHeight);
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}
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}
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GLWindowContext_xlib::~GLWindowContext_xlib() {
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this->destroyContext();
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}
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void GLWindowContext_xlib::onDestroyContext() {
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if (!fDisplay || !fGLContext) {
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return;
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}
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glXMakeCurrent(fDisplay, None, nullptr);
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glXDestroyContext(fDisplay, fGLContext);
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fGLContext = nullptr;
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}
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void GLWindowContext_xlib::onSwapBuffers() {
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if (fDisplay && fGLContext) {
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glXSwapBuffers(fDisplay, fWindow);
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}
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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* NewGLForXlib(const XlibWindowInfo& winInfo, const DisplayParams& params) {
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WindowContext* ctx = new GLWindowContext_xlib(winInfo, 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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