bdecacfbe4
This reverts commit 3a2cc2c2ec.
Fix code with samplecnt=0 that slipped in between trybots/CQ and landing of previous version
Change-Id: Iab19f2e8d1e9901601c8c76244d7a88c5d707fab
Reviewed-on: https://skia-review.googlesource.com/103181
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
388 lines
13 KiB
C++
388 lines
13 KiB
C++
/*
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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 <tchar.h>
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#include "WindowContextFactory_unix.h"
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#include "SkUtils.h"
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#include "Timer.h"
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#include "../GLWindowContext.h"
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#include "Window_unix.h"
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extern "C" {
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#include "keysym2ucs.h"
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}
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#include <X11/Xutil.h>
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#include <X11/XKBlib.h>
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namespace sk_app {
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SkTDynamicHash<Window_unix, XWindow> Window_unix::gWindowMap;
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Window* Window::CreateNativeWindow(void* platformData) {
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Display* display = (Display*)platformData;
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SkASSERT(display);
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Window_unix* window = new Window_unix();
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if (!window->initWindow(display)) {
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delete window;
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return nullptr;
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}
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return window;
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}
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const long kEventMask = ExposureMask | StructureNotifyMask |
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KeyPressMask | KeyReleaseMask |
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PointerMotionMask | ButtonPressMask | ButtonReleaseMask;
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bool Window_unix::initWindow(Display* display) {
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if (fRequestedDisplayParams.fMSAASampleCount != fMSAASampleCount) {
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this->closeWindow();
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}
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// we already have a window
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if (fDisplay) {
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return true;
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}
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fDisplay = display;
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constexpr int initialWidth = 1280;
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constexpr int initialHeight = 960;
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// Attempt to create a window that supports GL
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// We prefer the more recent glXChooseFBConfig but fall back to glXChooseVisual. They have
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// slight differences in how attributes are specified.
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static int constexpr kChooseFBConfigAtt[] = {
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GLX_RENDER_TYPE, GLX_RGBA_BIT,
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GLX_DOUBLEBUFFER, True,
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GLX_STENCIL_SIZE, 8,
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None
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};
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// For some reason glXChooseVisual takes a non-const pointer to the attributes.
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int chooseVisualAtt[] = {
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GLX_RGBA,
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GLX_DOUBLEBUFFER,
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GLX_STENCIL_SIZE, 8,
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None
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};
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SkASSERT(nullptr == fVisualInfo);
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if (fRequestedDisplayParams.fMSAASampleCount > 1) {
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static const GLint kChooseFBConifgAttCnt = SK_ARRAY_COUNT(kChooseFBConfigAtt);
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GLint msaaChooseFBConfigAtt[kChooseFBConifgAttCnt + 4];
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memcpy(msaaChooseFBConfigAtt, kChooseFBConfigAtt, sizeof(kChooseFBConfigAtt));
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SkASSERT(None == msaaChooseFBConfigAtt[kChooseFBConifgAttCnt - 1]);
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msaaChooseFBConfigAtt[kChooseFBConifgAttCnt - 1] = GLX_SAMPLE_BUFFERS_ARB;
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msaaChooseFBConfigAtt[kChooseFBConifgAttCnt + 0] = 1;
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msaaChooseFBConfigAtt[kChooseFBConifgAttCnt + 1] = GLX_SAMPLES_ARB;
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msaaChooseFBConfigAtt[kChooseFBConifgAttCnt + 2] = fRequestedDisplayParams.fMSAASampleCount;
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msaaChooseFBConfigAtt[kChooseFBConifgAttCnt + 3] = None;
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int n;
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fFBConfig = glXChooseFBConfig(fDisplay, DefaultScreen(fDisplay), msaaChooseFBConfigAtt, &n);
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if (n > 0) {
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fVisualInfo = glXGetVisualFromFBConfig(fDisplay, *fFBConfig);
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} else {
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static const GLint kChooseVisualAttCnt = SK_ARRAY_COUNT(chooseVisualAtt);
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GLint msaaChooseVisualAtt[kChooseVisualAttCnt + 4];
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memcpy(msaaChooseVisualAtt, chooseVisualAtt, sizeof(chooseVisualAtt));
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SkASSERT(None == msaaChooseVisualAtt[kChooseVisualAttCnt - 1]);
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msaaChooseFBConfigAtt[kChooseVisualAttCnt - 1] = GLX_SAMPLE_BUFFERS_ARB;
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msaaChooseFBConfigAtt[kChooseVisualAttCnt + 0] = 1;
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msaaChooseFBConfigAtt[kChooseVisualAttCnt + 1] = GLX_SAMPLES_ARB;
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msaaChooseFBConfigAtt[kChooseVisualAttCnt + 2] =
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fRequestedDisplayParams.fMSAASampleCount;
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msaaChooseFBConfigAtt[kChooseVisualAttCnt + 3] = None;
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fVisualInfo = glXChooseVisual(display, DefaultScreen(display), msaaChooseVisualAtt);
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fFBConfig = nullptr;
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}
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}
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if (nullptr == fVisualInfo) {
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int n;
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fFBConfig = glXChooseFBConfig(fDisplay, DefaultScreen(fDisplay), kChooseFBConfigAtt, &n);
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if (n > 0) {
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fVisualInfo = glXGetVisualFromFBConfig(fDisplay, *fFBConfig);
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} else {
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fVisualInfo = glXChooseVisual(display, DefaultScreen(display), chooseVisualAtt);
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fFBConfig = nullptr;
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}
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}
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if (fVisualInfo) {
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Colormap colorMap = XCreateColormap(display,
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RootWindow(display, fVisualInfo->screen),
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fVisualInfo->visual,
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AllocNone);
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XSetWindowAttributes swa;
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swa.colormap = colorMap;
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swa.event_mask = kEventMask;
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fWindow = XCreateWindow(display,
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RootWindow(display, fVisualInfo->screen),
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0, 0, // x, y
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initialWidth, initialHeight,
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0, // border width
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fVisualInfo->depth,
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InputOutput,
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fVisualInfo->visual,
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CWEventMask | CWColormap,
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&swa);
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} else {
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// Create a simple window instead. We will not be able to show GL
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fWindow = XCreateSimpleWindow(display,
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DefaultRootWindow(display),
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0, 0, // x, y
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initialWidth, initialHeight,
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0, // border width
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0, // border value
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0); // background value
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XSelectInput(display, fWindow, kEventMask);
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}
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if (!fWindow) {
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return false;
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}
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fMSAASampleCount = fRequestedDisplayParams.fMSAASampleCount;
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// set up to catch window delete message
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fWmDeleteMessage = XInternAtom(display, "WM_DELETE_WINDOW", False);
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XSetWMProtocols(display, fWindow, &fWmDeleteMessage, 1);
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// add to hashtable of windows
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gWindowMap.add(this);
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// init event variables
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fPendingPaint = false;
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fPendingResize = false;
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return true;
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}
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void Window_unix::closeWindow() {
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if (fDisplay) {
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this->detach();
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if (fGC) {
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XFreeGC(fDisplay, fGC);
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fGC = nullptr;
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}
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gWindowMap.remove(fWindow);
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XDestroyWindow(fDisplay, fWindow);
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fWindow = 0;
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if (fFBConfig) {
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XFree(fFBConfig);
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fFBConfig = nullptr;
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}
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if (fVisualInfo) {
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XFree(fVisualInfo);
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fVisualInfo = nullptr;
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}
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fDisplay = nullptr;
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}
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}
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static Window::Key get_key(KeySym keysym) {
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static const struct {
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KeySym fXK;
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Window::Key fKey;
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} gPair[] = {
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{ XK_BackSpace, Window::Key::kBack },
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{ XK_Clear, Window::Key::kBack },
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{ XK_Return, Window::Key::kOK },
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{ XK_Up, Window::Key::kUp },
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{ XK_Down, Window::Key::kDown },
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{ XK_Left, Window::Key::kLeft },
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{ XK_Right, Window::Key::kRight },
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{ XK_Tab, Window::Key::kTab },
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{ XK_Page_Up, Window::Key::kPageUp },
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{ XK_Page_Down, Window::Key::kPageDown },
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{ XK_Home, Window::Key::kHome },
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{ XK_End, Window::Key::kEnd },
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{ XK_Delete, Window::Key::kDelete },
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{ XK_Escape, Window::Key::kEscape },
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{ XK_Shift_L, Window::Key::kShift },
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{ XK_Shift_R, Window::Key::kShift },
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{ XK_Control_L, Window::Key::kCtrl },
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{ XK_Control_R, Window::Key::kCtrl },
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{ XK_Alt_L, Window::Key::kOption },
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{ XK_Alt_R, Window::Key::kOption },
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{ 'A', Window::Key::kA },
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{ 'C', Window::Key::kC },
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{ 'V', Window::Key::kV },
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{ 'X', Window::Key::kX },
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{ 'Y', Window::Key::kY },
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{ 'Z', Window::Key::kZ },
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};
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for (size_t i = 0; i < SK_ARRAY_COUNT(gPair); i++) {
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if (gPair[i].fXK == keysym) {
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return gPair[i].fKey;
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}
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}
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return Window::Key::kNONE;
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}
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static uint32_t get_modifiers(const XEvent& event) {
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static const struct {
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unsigned fXMask;
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unsigned fSkMask;
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} gModifiers[] = {
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{ ShiftMask, Window::kShift_ModifierKey },
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{ ControlMask, Window::kControl_ModifierKey },
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{ Mod1Mask, Window::kOption_ModifierKey },
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};
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auto modifiers = 0;
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for (size_t i = 0; i < SK_ARRAY_COUNT(gModifiers); ++i) {
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if (event.xkey.state & gModifiers[i].fXMask) {
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modifiers |= gModifiers[i].fSkMask;
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}
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}
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return modifiers;
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}
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bool Window_unix::handleEvent(const XEvent& event) {
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switch (event.type) {
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case MapNotify:
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if (!fGC) {
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fGC = XCreateGC(fDisplay, fWindow, 0, nullptr);
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}
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break;
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case ClientMessage:
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if ((Atom)event.xclient.data.l[0] == fWmDeleteMessage &&
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gWindowMap.count() == 1) {
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return true;
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}
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break;
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case ButtonPress:
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switch (event.xbutton.button) {
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case Button1:
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this->onMouse(event.xbutton.x, event.xbutton.y,
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Window::kDown_InputState, get_modifiers(event));
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break;
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case Button4:
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this->onMouseWheel(1.0f, get_modifiers(event));
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break;
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case Button5:
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this->onMouseWheel(-1.0f, get_modifiers(event));
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break;
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}
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break;
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case ButtonRelease:
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if (event.xbutton.button == Button1) {
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this->onMouse(event.xbutton.x, event.xbutton.y,
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Window::kUp_InputState, get_modifiers(event));
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}
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break;
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case MotionNotify:
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this->onMouse(event.xmotion.x, event.xmotion.y,
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Window::kMove_InputState, get_modifiers(event));
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break;
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case KeyPress: {
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int shiftLevel = (event.xkey.state & ShiftMask) ? 1 : 0;
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KeySym keysym = XkbKeycodeToKeysym(fDisplay, event.xkey.keycode, 0, shiftLevel);
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Window::Key key = get_key(keysym);
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if (key != Window::Key::kNONE) {
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if (!this->onKey(key, Window::kDown_InputState, get_modifiers(event))) {
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if (keysym == XK_Escape) {
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return true;
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}
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}
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}
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long uni = keysym2ucs(keysym);
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if (uni != -1) {
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(void) this->onChar((SkUnichar) uni, get_modifiers(event));
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}
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} break;
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case KeyRelease: {
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int shiftLevel = (event.xkey.state & ShiftMask) ? 1 : 0;
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KeySym keysym = XkbKeycodeToKeysym(fDisplay, event.xkey.keycode,
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0, shiftLevel);
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Window::Key key = get_key(keysym);
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(void) this->onKey(key, Window::kUp_InputState,
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get_modifiers(event));
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} break;
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default:
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// these events should be handled in the main event loop
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SkASSERT(event.type != Expose && event.type != ConfigureNotify);
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break;
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}
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return false;
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}
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void Window_unix::setTitle(const char* title) {
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XTextProperty textproperty;
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XStringListToTextProperty(const_cast<char**>(&title), 1, &textproperty);
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XSetWMName(fDisplay, fWindow, &textproperty);
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}
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void Window_unix::show() {
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XMapWindow(fDisplay, fWindow);
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}
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bool Window_unix::attach(BackendType attachType) {
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this->initWindow(fDisplay);
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window_context_factory::XlibWindowInfo winInfo;
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winInfo.fDisplay = fDisplay;
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winInfo.fWindow = fWindow;
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winInfo.fFBConfig = fFBConfig;
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winInfo.fVisualInfo = fVisualInfo;
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XWindowAttributes attrs;
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if (XGetWindowAttributes(fDisplay, fWindow, &attrs)) {
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winInfo.fWidth = attrs.width;
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winInfo.fHeight = attrs.height;
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} else {
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winInfo.fWidth = winInfo.fHeight = 0;
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}
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switch (attachType) {
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#ifdef SK_VULKAN
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case kVulkan_BackendType:
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fWindowContext = window_context_factory::NewVulkanForXlib(winInfo,
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fRequestedDisplayParams);
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break;
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#endif
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case kNativeGL_BackendType:
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fWindowContext = window_context_factory::NewGLForXlib(winInfo, fRequestedDisplayParams);
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break;
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case kRaster_BackendType:
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fWindowContext = window_context_factory::NewRasterForXlib(winInfo,
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fRequestedDisplayParams);
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break;
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}
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this->onBackendCreated();
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return (SkToBool(fWindowContext));
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}
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void Window_unix::onInval() {
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XEvent event;
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event.type = Expose;
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event.xexpose.send_event = True;
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event.xexpose.display = fDisplay;
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event.xexpose.window = fWindow;
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event.xexpose.x = 0;
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event.xexpose.y = 0;
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event.xexpose.width = this->width();
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event.xexpose.height = this->height();
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event.xexpose.count = 0;
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XSendEvent(fDisplay, fWindow, False, 0, &event);
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}
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} // namespace sk_app
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