15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/gl/gl_implementation.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <algorithm> 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <string> 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/at_exit.h" 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/command_line.h" 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/logging.h" 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/gl/gl_bindings.h" 145d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include "ui/gl/gl_gl_api_implementation.h" 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace gfx { 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace { 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const struct { 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const char* name; 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GLImplementation implementation; 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} kGLImplementationNamePairs[] = { 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { kGLImplementationDesktopName, kGLImplementationDesktopGL }, 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { kGLImplementationOSMesaName, kGLImplementationOSMesaGL }, 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_MACOSX) 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { kGLImplementationAppleName, kGLImplementationAppleGL }, 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { kGLImplementationEGLName, kGLImplementationEGLGLES2 }, 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { kGLImplementationMockName, kGLImplementationMockGL } 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)typedef std::vector<base::NativeLibrary> LibraryArray; 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)GLImplementation g_gl_implementation = kGLImplementationNone; 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)LibraryArray* g_libraries; 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)GLGetProcAddressProc g_get_proc_address; 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void CleanupNativeLibraries(void* unused) { 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (g_libraries) { 414e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) // We do not call base::UnloadNativeLibrary() for these libraries as 424e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) // unloading libGL without closing X display is not allowed. See 434e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) // crbug.com/250813 for details. 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) delete g_libraries; 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) g_libraries = NULL; 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 51558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdochbase::ThreadLocalPointer<GLApi>* g_current_gl_context_tls = NULL; 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)OSMESAApi* g_current_osmesa_context; 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)EGLApi* g_current_egl_context; 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)WGLApi* g_current_wgl_context; 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#elif defined(USE_X11) 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)EGLApi* g_current_egl_context; 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)GLXApi* g_current_glx_context; 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)#elif defined(USE_OZONE) 6590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 6690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)EGLApi* g_current_egl_context; 6790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#elif defined(OS_ANDROID) 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)EGLApi* g_current_egl_context; 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)GLImplementation GetNamedGLImplementation(const std::string& name) { 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (size_t i = 0; i < ARRAYSIZE_UNSAFE(kGLImplementationNamePairs); ++i) { 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (name == kGLImplementationNamePairs[i].name) 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return kGLImplementationNamePairs[i].implementation; 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return kGLImplementationNone; 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const char* GetGLImplementationName(GLImplementation implementation) { 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (size_t i = 0; i < ARRAYSIZE_UNSAFE(kGLImplementationNamePairs); ++i) { 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (implementation == kGLImplementationNamePairs[i].implementation) 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return kGLImplementationNamePairs[i].name; 875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return "unknown"; 905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void SetGLImplementation(GLImplementation implementation) { 935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) g_gl_implementation = implementation; 945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)GLImplementation GetGLImplementation() { 975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return g_gl_implementation; 985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool HasDesktopGLFeatures() { 1015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return kGLImplementationDesktopGL == g_gl_implementation || 1025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) kGLImplementationOSMesaGL == g_gl_implementation || 1035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) kGLImplementationAppleGL == g_gl_implementation; 1045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void AddGLNativeLibrary(base::NativeLibrary library) { 1075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(library); 1085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!g_libraries) { 1105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) g_libraries = new LibraryArray; 1115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::AtExitManager::RegisterCallback(CleanupNativeLibraries, NULL); 1125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) g_libraries->push_back(library); 1155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void UnloadGLNativeLibraries() { 1185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CleanupNativeLibraries(NULL); 1195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void SetGLGetProcAddressProc(GLGetProcAddressProc proc) { 1225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(proc); 1235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) g_get_proc_address = proc; 1245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1265d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)void* GetGLProcAddress(const char* name) { 1275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(g_gl_implementation != kGLImplementationNone); 1285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (g_libraries) { 1305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (size_t i = 0; i < g_libraries->size(); ++i) { 1315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void* proc = base::GetFunctionPointerFromNativeLibrary((*g_libraries)[i], 1325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) name); 1335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (proc) 1345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return proc; 1355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1375d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (g_get_proc_address) { 1385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void* proc = g_get_proc_address(name); 1395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (proc) 1405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return proc; 1415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return NULL; 1445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1465d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)void InitializeNullDrawGLBindings() { 1475d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // This is platform independent, so it does not need to live in a platform 1485d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // specific implementation file. 1495d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) InitializeNullDrawGLBindingsGL(); 1505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 152a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)bool HasInitializedNullDrawGLBindings() { 153a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) return HasInitializedNullDrawGLBindingsGL(); 154a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)} 155a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 156a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)DisableNullDrawGLBindings::DisableNullDrawGLBindings() { 157a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) initial_enabled_ = SetNullDrawGLBindingsEnabledGL(false); 158a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)} 159a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 160a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)DisableNullDrawGLBindings::~DisableNullDrawGLBindings() { 161a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) SetNullDrawGLBindingsEnabledGL(initial_enabled_); 162a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)} 163a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 164effb81e5f8246d0db0270817048dc992db66e9fbBen MurdochGLWindowSystemBindingInfo::GLWindowSystemBindingInfo() 165effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch : direct_rendering(true) {} 166effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch 1675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace gfx 168