mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
694 lines
20 KiB
C++
694 lines
20 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "GLContextProvider.h"
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#include "GLContextWGL.h"
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#include "GLLibraryLoader.h"
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#include "nsDebug.h"
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#include "nsIWidget.h"
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#include "gfxPlatform.h"
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#include "gfxWindowsSurface.h"
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#include "gfxCrashReporterUtils.h"
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#include "prenv.h"
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#include "mozilla/Preferences.h"
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namespace mozilla {
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namespace gl {
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using namespace mozilla::gfx;
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WGLLibrary sWGLLib;
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HWND
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WGLLibrary::CreateDummyWindow(HDC *aWindowDC)
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{
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WNDCLASSW wc;
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if (!GetClassInfoW(GetModuleHandle(nullptr), L"GLContextWGLClass", &wc)) {
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ZeroMemory(&wc, sizeof(WNDCLASSW));
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wc.style = CS_OWNDC;
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wc.hInstance = GetModuleHandle(nullptr);
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wc.lpfnWndProc = DefWindowProc;
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wc.lpszClassName = L"GLContextWGLClass";
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if (!RegisterClassW(&wc)) {
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NS_WARNING("Failed to register GLContextWGLClass?!");
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// er. failed to register our class?
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return nullptr;
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}
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}
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HWND win = CreateWindowW(L"GLContextWGLClass", L"GLContextWGL", 0,
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0, 0, 16, 16,
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nullptr, nullptr, GetModuleHandle(nullptr),
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nullptr);
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NS_ENSURE_TRUE(win, nullptr);
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HDC dc = GetDC(win);
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NS_ENSURE_TRUE(dc, nullptr);
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if (mWindowPixelFormat == 0) {
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PIXELFORMATDESCRIPTOR pfd;
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ZeroMemory(&pfd, sizeof(PIXELFORMATDESCRIPTOR));
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pfd.nSize = sizeof(PIXELFORMATDESCRIPTOR);
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pfd.nVersion = 1;
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pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER;
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pfd.iPixelType = PFD_TYPE_RGBA;
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pfd.cColorBits = 24;
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pfd.cRedBits = 8;
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pfd.cGreenBits = 8;
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pfd.cBlueBits = 8;
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pfd.cAlphaBits = 8;
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pfd.cDepthBits = 0;
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pfd.iLayerType = PFD_MAIN_PLANE;
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mWindowPixelFormat = ChoosePixelFormat(dc, &pfd);
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}
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if (!mWindowPixelFormat ||
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!SetPixelFormat(dc, mWindowPixelFormat, nullptr))
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{
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NS_WARNING("SetPixelFormat failed!");
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DestroyWindow(win);
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return nullptr;
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}
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if (aWindowDC) {
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*aWindowDC = dc;
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}
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return win;
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}
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static inline bool
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HasExtension(const char* aExtensions, const char* aRequiredExtension)
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{
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return GLContext::ListHasExtension(
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reinterpret_cast<const GLubyte*>(aExtensions), aRequiredExtension);
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}
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bool
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WGLLibrary::EnsureInitialized()
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{
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if (mInitialized)
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return true;
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mozilla::ScopedGfxFeatureReporter reporter("WGL");
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std::string libGLFilename = "Opengl32.dll";
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// SU_SPIES_DIRECTORY is for AMD CodeXL/gDEBugger
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if (PR_GetEnv("SU_SPIES_DIRECTORY")) {
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libGLFilename = std::string(PR_GetEnv("SU_SPIES_DIRECTORY")) + "\\opengl32.dll";
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}
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if (!mOGLLibrary) {
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mOGLLibrary = PR_LoadLibrary(&libGLFilename[0]);
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if (!mOGLLibrary) {
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NS_WARNING("Couldn't load OpenGL library.");
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return false;
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}
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}
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GLLibraryLoader::SymLoadStruct earlySymbols[] = {
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{ (PRFuncPtr*) &fCreateContext, { "wglCreateContext", nullptr } },
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{ (PRFuncPtr*) &fMakeCurrent, { "wglMakeCurrent", nullptr } },
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{ (PRFuncPtr*) &fGetProcAddress, { "wglGetProcAddress", nullptr } },
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{ (PRFuncPtr*) &fDeleteContext, { "wglDeleteContext", nullptr } },
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{ (PRFuncPtr*) &fGetCurrentContext, { "wglGetCurrentContext", nullptr } },
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{ (PRFuncPtr*) &fGetCurrentDC, { "wglGetCurrentDC", nullptr } },
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{ (PRFuncPtr*) &fShareLists, { "wglShareLists", nullptr } },
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{ nullptr, { nullptr } }
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};
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if (!GLLibraryLoader::LoadSymbols(mOGLLibrary, &earlySymbols[0])) {
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NS_WARNING("Couldn't find required entry points in OpenGL DLL (early init)");
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return false;
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}
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// This is ridiculous -- we have to actually create a context to
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// get the OpenGL ICD to load.
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mWindow = CreateDummyWindow(&mWindowDC);
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NS_ENSURE_TRUE(mWindow, false);
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// create rendering context
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mWindowGLContext = fCreateContext(mWindowDC);
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NS_ENSURE_TRUE(mWindowGLContext, false);
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HGLRC curCtx = fGetCurrentContext();
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HDC curDC = fGetCurrentDC();
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if (!fMakeCurrent((HDC)mWindowDC, (HGLRC)mWindowGLContext)) {
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NS_WARNING("wglMakeCurrent failed");
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return false;
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}
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// Now we can grab all the other symbols that we couldn't without having
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// a context current.
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GLLibraryLoader::SymLoadStruct pbufferSymbols[] = {
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{ (PRFuncPtr*) &fCreatePbuffer, { "wglCreatePbufferARB", "wglCreatePbufferEXT", nullptr } },
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{ (PRFuncPtr*) &fDestroyPbuffer, { "wglDestroyPbufferARB", "wglDestroyPbufferEXT", nullptr } },
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{ (PRFuncPtr*) &fGetPbufferDC, { "wglGetPbufferDCARB", "wglGetPbufferDCEXT", nullptr } },
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{ (PRFuncPtr*) &fBindTexImage, { "wglBindTexImageARB", "wglBindTexImageEXT", nullptr } },
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{ (PRFuncPtr*) &fReleaseTexImage, { "wglReleaseTexImageARB", "wglReleaseTexImageEXT", nullptr } },
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{ nullptr, { nullptr } }
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};
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GLLibraryLoader::SymLoadStruct pixFmtSymbols[] = {
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{ (PRFuncPtr*) &fChoosePixelFormat, { "wglChoosePixelFormatARB", "wglChoosePixelFormatEXT", nullptr } },
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{ (PRFuncPtr*) &fGetPixelFormatAttribiv, { "wglGetPixelFormatAttribivARB", "wglGetPixelFormatAttribivEXT", nullptr } },
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{ nullptr, { nullptr } }
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};
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if (!GLLibraryLoader::LoadSymbols(mOGLLibrary, &pbufferSymbols[0],
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(GLLibraryLoader::PlatformLookupFunction)fGetProcAddress))
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{
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// this isn't an error, just means that pbuffers aren't supported
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fCreatePbuffer = nullptr;
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}
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if (!GLLibraryLoader::LoadSymbols(mOGLLibrary, &pixFmtSymbols[0],
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(GLLibraryLoader::PlatformLookupFunction)fGetProcAddress))
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{
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// this isn't an error, just means that we don't have the pixel format extension
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fChoosePixelFormat = nullptr;
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}
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GLLibraryLoader::SymLoadStruct extensionsSymbols[] = {
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{ (PRFuncPtr *) &fGetExtensionsString, { "wglGetExtensionsStringARB", nullptr} },
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{ nullptr, { nullptr } }
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};
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GLLibraryLoader::SymLoadStruct robustnessSymbols[] = {
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{ (PRFuncPtr *) &fCreateContextAttribs, { "wglCreateContextAttribsARB", nullptr} },
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{ nullptr, { nullptr } }
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};
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if (GLLibraryLoader::LoadSymbols(mOGLLibrary, &extensionsSymbols[0],
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(GLLibraryLoader::PlatformLookupFunction)fGetProcAddress)) {
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const char *wglExts = fGetExtensionsString(mWindowDC);
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if (wglExts && HasExtension(wglExts, "WGL_ARB_create_context")) {
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GLLibraryLoader::LoadSymbols(mOGLLibrary, &robustnessSymbols[0],
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(GLLibraryLoader::PlatformLookupFunction)fGetProcAddress);
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if (HasExtension(wglExts, "WGL_ARB_create_context_robustness")) {
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mHasRobustness = true;
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}
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}
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}
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// reset back to the previous context, just in case
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fMakeCurrent(curDC, curCtx);
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if (mHasRobustness) {
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fDeleteContext(mWindowGLContext);
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int attribs[] = {
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LOCAL_WGL_CONTEXT_FLAGS_ARB, LOCAL_WGL_CONTEXT_ROBUST_ACCESS_BIT_ARB,
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LOCAL_WGL_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB, LOCAL_WGL_LOSE_CONTEXT_ON_RESET_ARB,
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0
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};
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mWindowGLContext = fCreateContextAttribs(mWindowDC, nullptr, attribs);
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if (!mWindowGLContext) {
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mHasRobustness = false;
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mWindowGLContext = fCreateContext(mWindowDC);
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}
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}
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mInitialized = true;
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// Call this to create the global GLContext instance,
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// and to check for errors. Note that this must happen /after/
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// setting mInitialized to TRUE, or an infinite loop results.
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if (GLContextProviderWGL::GetGlobalContext() == nullptr) {
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mInitialized = false;
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return false;
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}
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reporter.SetSuccessful();
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return true;
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}
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GLContextWGL::GLContextWGL(
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const SurfaceCaps& caps,
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GLContext* sharedContext,
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bool isOffscreen,
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HDC aDC,
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HGLRC aContext,
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HWND aWindow)
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: GLContext(caps, sharedContext, isOffscreen),
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mDC(aDC),
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mContext(aContext),
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mWnd(aWindow),
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mPBuffer(nullptr),
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mPixelFormat(0),
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mIsDoubleBuffered(false)
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{
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// See 899855
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SetProfileVersion(ContextProfile::OpenGLCompatibility, 200);
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}
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GLContextWGL::GLContextWGL(
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const SurfaceCaps& caps,
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GLContext* sharedContext,
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bool isOffscreen,
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HANDLE aPbuffer,
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HDC aDC,
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HGLRC aContext,
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int aPixelFormat)
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: GLContext(caps, sharedContext, isOffscreen),
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mDC(aDC),
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mContext(aContext),
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mWnd(nullptr),
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mPBuffer(aPbuffer),
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mPixelFormat(aPixelFormat),
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mIsDoubleBuffered(false)
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{
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// See 899855
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SetProfileVersion(ContextProfile::OpenGLCompatibility, 200);
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}
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GLContextWGL::~GLContextWGL()
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{
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MarkDestroyed();
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sWGLLib.fDeleteContext(mContext);
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if (mPBuffer)
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sWGLLib.fDestroyPbuffer(mPBuffer);
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if (mWnd)
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DestroyWindow(mWnd);
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}
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bool
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GLContextWGL::Init()
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{
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if (!mDC || !mContext)
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return false;
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// see bug 929506 comment 29. wglGetProcAddress requires a current context.
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if (!sWGLLib.fMakeCurrent(mDC, mContext))
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return false;
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SetupLookupFunction();
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if (!InitWithPrefix("gl", true))
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return false;
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return true;
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}
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bool
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GLContextWGL::MakeCurrentImpl(bool aForce)
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{
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BOOL succeeded = true;
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// wglGetCurrentContext seems to just pull the HGLRC out
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// of its TLS slot, so no need to do our own tls slot.
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// You would think that wglMakeCurrent would avoid doing
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// work if mContext was already current, but not so much..
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if (aForce || sWGLLib.fGetCurrentContext() != mContext) {
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succeeded = sWGLLib.fMakeCurrent(mDC, mContext);
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NS_ASSERTION(succeeded, "Failed to make GL context current!");
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}
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return succeeded;
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}
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bool
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GLContextWGL::IsCurrent()
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{
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return sWGLLib.fGetCurrentContext() == mContext;
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}
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void
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GLContextWGL::SetIsDoubleBuffered(bool aIsDB)
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{
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mIsDoubleBuffered = aIsDB;
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}
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bool
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GLContextWGL::IsDoubleBuffered() const
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{
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return mIsDoubleBuffered;
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}
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bool
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GLContextWGL::SupportsRobustness() const
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{
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return sWGLLib.HasRobustness();
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}
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bool
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GLContextWGL::SwapBuffers() {
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if (!mIsDoubleBuffered)
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return false;
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return ::SwapBuffers(mDC);
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}
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bool
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GLContextWGL::SetupLookupFunction()
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{
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// Make sure that we have a ref to the OGL library;
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// when run under CodeXL, wglGetProcAddress won't return
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// the right thing for some core functions.
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MOZ_ASSERT(mLibrary == nullptr);
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mLibrary = sWGLLib.GetOGLLibrary();
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mLookupFunc = (PlatformLookupFunction)sWGLLib.fGetProcAddress;
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return true;
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}
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static bool
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GetMaxSize(HDC hDC, int format, gfxIntSize& size)
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{
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int query[] = {LOCAL_WGL_MAX_PBUFFER_WIDTH_ARB, LOCAL_WGL_MAX_PBUFFER_HEIGHT_ARB};
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int result[2];
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// (HDC hdc, int iPixelFormat, int iLayerPlane, UINT nAttributes, int* piAttributes, int *piValues)
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if (!sWGLLib.fGetPixelFormatAttribiv(hDC, format, 0, 2, query, result))
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return false;
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size.width = result[0];
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size.height = result[1];
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return true;
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}
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static bool
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IsValidSizeForFormat(HDC hDC, int format,
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const gfxIntSize& requested)
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{
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gfxIntSize max;
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if (!GetMaxSize(hDC, format, max))
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return true;
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if (requested.width > max.width)
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return false;
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if (requested.height > max.height)
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return false;
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return true;
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}
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static GLContextWGL *
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GetGlobalContextWGL()
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{
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return static_cast<GLContextWGL*>(GLContextProviderWGL::GetGlobalContext());
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}
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already_AddRefed<GLContext>
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GLContextProviderWGL::CreateWrappingExisting(void*, void*)
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{
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return nullptr;
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}
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already_AddRefed<GLContext>
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GLContextProviderWGL::CreateForWindow(nsIWidget *aWidget)
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{
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if (!sWGLLib.EnsureInitialized()) {
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return nullptr;
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}
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/**
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* We need to make sure we call SetPixelFormat -after- calling
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* EnsureInitialized, otherwise it can load/unload the dll and
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* wglCreateContext will fail.
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*/
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HDC dc = (HDC)aWidget->GetNativeData(NS_NATIVE_GRAPHIC);
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SetPixelFormat(dc, sWGLLib.GetWindowPixelFormat(), nullptr);
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HGLRC context;
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GLContextWGL *shareContext = GetGlobalContextWGL();
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if (sWGLLib.HasRobustness()) {
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int attribs[] = {
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LOCAL_WGL_CONTEXT_FLAGS_ARB, LOCAL_WGL_CONTEXT_ROBUST_ACCESS_BIT_ARB,
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LOCAL_WGL_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB, LOCAL_WGL_LOSE_CONTEXT_ON_RESET_ARB,
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0
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};
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context = sWGLLib.fCreateContextAttribs(dc,
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shareContext ? shareContext->Context() : nullptr,
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attribs);
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} else {
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context = sWGLLib.fCreateContext(dc);
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if (context &&
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shareContext &&
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!sWGLLib.fShareLists(shareContext->Context(), context))
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{
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printf_stderr("WGL context creation failed for window: wglShareLists returned false!");
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sWGLLib.fDeleteContext(context);
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context = nullptr;
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}
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}
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if (!context) {
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return nullptr;
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}
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SurfaceCaps caps = SurfaceCaps::ForRGBA();
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nsRefPtr<GLContextWGL> glContext = new GLContextWGL(caps,
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shareContext,
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false,
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dc,
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context);
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if (!glContext->Init()) {
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return nullptr;
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}
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glContext->SetIsDoubleBuffered(true);
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return glContext.forget();
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}
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static already_AddRefed<GLContextWGL>
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CreatePBufferOffscreenContext(const gfxIntSize& aSize,
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GLContextWGL *aShareContext)
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{
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WGLLibrary& wgl = sWGLLib;
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#define A1(_a,_x) do { _a.AppendElement(_x); } while(0)
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#define A2(_a,_x,_y) do { _a.AppendElement(_x); _a.AppendElement(_y); } while(0)
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nsTArray<int> attrs;
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A2(attrs, LOCAL_WGL_SUPPORT_OPENGL_ARB, LOCAL_GL_TRUE);
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A2(attrs, LOCAL_WGL_DRAW_TO_PBUFFER_ARB, LOCAL_GL_TRUE);
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A2(attrs, LOCAL_WGL_DOUBLE_BUFFER_ARB, LOCAL_GL_FALSE);
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A2(attrs, LOCAL_WGL_ACCELERATION_ARB, LOCAL_WGL_FULL_ACCELERATION_ARB);
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A2(attrs, LOCAL_WGL_DOUBLE_BUFFER_ARB, LOCAL_GL_FALSE);
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A2(attrs, LOCAL_WGL_STEREO_ARB, LOCAL_GL_FALSE);
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A1(attrs, 0);
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nsTArray<int> pbattrs;
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A1(pbattrs, 0);
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#undef A1
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#undef A2
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// We only need one!
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UINT numFormats = 1;
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int formats[1];
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HDC windowDC = wgl.GetWindowDC();
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if (!wgl.fChoosePixelFormat(windowDC,
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attrs.Elements(), nullptr,
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numFormats, formats, &numFormats)
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|| numFormats == 0)
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{
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return nullptr;
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}
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// We don't care; just pick the first one.
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int chosenFormat = formats[0];
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if (!IsValidSizeForFormat(windowDC, chosenFormat, aSize))
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return nullptr;
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HANDLE pbuffer = wgl.fCreatePbuffer(windowDC, chosenFormat,
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aSize.width, aSize.height,
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pbattrs.Elements());
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if (!pbuffer) {
|
|
return nullptr;
|
|
}
|
|
|
|
HDC pbdc = wgl.fGetPbufferDC(pbuffer);
|
|
NS_ASSERTION(pbdc, "expected a dc");
|
|
|
|
HGLRC context;
|
|
if (wgl.HasRobustness()) {
|
|
int attribs[] = {
|
|
LOCAL_WGL_CONTEXT_FLAGS_ARB, LOCAL_WGL_CONTEXT_ROBUST_ACCESS_BIT_ARB,
|
|
LOCAL_WGL_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB, LOCAL_WGL_LOSE_CONTEXT_ON_RESET_ARB,
|
|
0
|
|
};
|
|
|
|
context = wgl.fCreateContextAttribs(pbdc, aShareContext->Context(), attribs);
|
|
} else {
|
|
context = wgl.fCreateContext(pbdc);
|
|
if (context && aShareContext) {
|
|
if (!wgl.fShareLists(aShareContext->Context(), context)) {
|
|
wgl.fDeleteContext(context);
|
|
context = nullptr;
|
|
printf_stderr("ERROR - creating pbuffer context failed because wglShareLists returned FALSE");
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!context) {
|
|
wgl.fDestroyPbuffer(pbuffer);
|
|
return nullptr;
|
|
}
|
|
|
|
SurfaceCaps dummyCaps = SurfaceCaps::Any();
|
|
nsRefPtr<GLContextWGL> glContext = new GLContextWGL(dummyCaps,
|
|
aShareContext,
|
|
true,
|
|
pbuffer,
|
|
pbdc,
|
|
context,
|
|
chosenFormat);
|
|
|
|
return glContext.forget();
|
|
}
|
|
|
|
static already_AddRefed<GLContextWGL>
|
|
CreateWindowOffscreenContext()
|
|
{
|
|
// CreateWindowOffscreenContext must return a global-shared context
|
|
GLContextWGL *shareContext = GetGlobalContextWGL();
|
|
if (!shareContext) {
|
|
return nullptr;
|
|
}
|
|
|
|
HDC dc;
|
|
HWND win = sWGLLib.CreateDummyWindow(&dc);
|
|
if (!win) {
|
|
return nullptr;
|
|
}
|
|
|
|
HGLRC context = sWGLLib.fCreateContext(dc);
|
|
if (sWGLLib.HasRobustness()) {
|
|
int attribs[] = {
|
|
LOCAL_WGL_CONTEXT_FLAGS_ARB, LOCAL_WGL_CONTEXT_ROBUST_ACCESS_BIT_ARB,
|
|
LOCAL_WGL_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB, LOCAL_WGL_LOSE_CONTEXT_ON_RESET_ARB,
|
|
0
|
|
};
|
|
|
|
context = sWGLLib.fCreateContextAttribs(dc, shareContext->Context(), attribs);
|
|
} else {
|
|
context = sWGLLib.fCreateContext(dc);
|
|
if (context && shareContext &&
|
|
!sWGLLib.fShareLists(shareContext->Context(), context))
|
|
{
|
|
NS_WARNING("wglShareLists failed!");
|
|
|
|
sWGLLib.fDeleteContext(context);
|
|
DestroyWindow(win);
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
if (!context) {
|
|
return nullptr;
|
|
}
|
|
|
|
SurfaceCaps caps = SurfaceCaps::ForRGBA();
|
|
nsRefPtr<GLContextWGL> glContext = new GLContextWGL(caps,
|
|
shareContext, true,
|
|
dc, context, win);
|
|
|
|
return glContext.forget();
|
|
}
|
|
|
|
already_AddRefed<GLContext>
|
|
GLContextProviderWGL::CreateHeadless()
|
|
{
|
|
if (!sWGLLib.EnsureInitialized()) {
|
|
return nullptr;
|
|
}
|
|
|
|
nsRefPtr<GLContextWGL> glContext;
|
|
|
|
// Always try to create a pbuffer context first, because we
|
|
// want the context isolation.
|
|
if (sWGLLib.fCreatePbuffer &&
|
|
sWGLLib.fChoosePixelFormat)
|
|
{
|
|
gfxIntSize dummySize = gfxIntSize(16, 16);
|
|
glContext = CreatePBufferOffscreenContext(dummySize, GetGlobalContextWGL());
|
|
}
|
|
|
|
// If it failed, then create a window context and use a FBO.
|
|
if (!glContext) {
|
|
glContext = CreateWindowOffscreenContext();
|
|
}
|
|
|
|
if (!glContext ||
|
|
!glContext->Init())
|
|
{
|
|
return nullptr;
|
|
}
|
|
|
|
nsRefPtr<GLContext> retGL = glContext.get();
|
|
return retGL.forget();
|
|
}
|
|
|
|
already_AddRefed<GLContext>
|
|
GLContextProviderWGL::CreateOffscreen(const gfxIntSize& size,
|
|
const SurfaceCaps& caps)
|
|
{
|
|
nsRefPtr<GLContext> glContext = CreateHeadless();
|
|
if (!glContext)
|
|
return nullptr;
|
|
|
|
if (!glContext->InitOffscreen(ToIntSize(size), caps))
|
|
return nullptr;
|
|
|
|
return glContext.forget();
|
|
}
|
|
|
|
static nsRefPtr<GLContextWGL> gGlobalContext;
|
|
|
|
GLContext *
|
|
GLContextProviderWGL::GetGlobalContext()
|
|
{
|
|
if (!sWGLLib.EnsureInitialized()) {
|
|
return nullptr;
|
|
}
|
|
|
|
static bool triedToCreateContext = false;
|
|
|
|
if (!triedToCreateContext && !gGlobalContext) {
|
|
triedToCreateContext = true;
|
|
|
|
// conveniently, we already have what we need...
|
|
SurfaceCaps dummyCaps = SurfaceCaps::Any();
|
|
gGlobalContext = new GLContextWGL(dummyCaps,
|
|
nullptr, true,
|
|
sWGLLib.GetWindowDC(),
|
|
sWGLLib.GetWindowGLContext());
|
|
if (!gGlobalContext->Init()) {
|
|
NS_WARNING("Global context GLContext initialization failed?");
|
|
gGlobalContext = nullptr;
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
return static_cast<GLContext*>(gGlobalContext);
|
|
}
|
|
|
|
void
|
|
GLContextProviderWGL::Shutdown()
|
|
{
|
|
gGlobalContext = nullptr;
|
|
}
|
|
|
|
} /* namespace gl */
|
|
} /* namespace mozilla */
|