| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "ui/gl/gl_surface_egl.h" |
| |
| #if defined(OS_ANDROID) |
| #include <android/native_window_jni.h> |
| #endif |
| |
| #include "base/command_line.h" |
| #include "base/logging.h" |
| #include "base/memory/scoped_ptr.h" |
| #include "base/message_loop/message_loop.h" |
| #include "base/metrics/histogram_macros.h" |
| #include "base/trace_event/trace_event.h" |
| #include "build/build_config.h" |
| #include "ui/gfx/geometry/rect.h" |
| #include "ui/gl/egl_util.h" |
| #include "ui/gl/gl_context.h" |
| #include "ui/gl/gl_implementation.h" |
| #include "ui/gl/gl_surface_stub.h" |
| #include "ui/gl/gl_switches.h" |
| #include "ui/gl/scoped_make_current.h" |
| #include "ui/gl/sync_control_vsync_provider.h" |
| |
| #if defined(USE_X11) |
| extern "C" { |
| #include <X11/Xlib.h> |
| } |
| #endif |
| |
| #if defined (USE_OZONE) |
| #include "ui/ozone/public/ozone_platform.h" |
| #include "ui/ozone/public/surface_factory_ozone.h" |
| #endif |
| |
| #if !defined(EGL_FIXED_SIZE_ANGLE) |
| #define EGL_FIXED_SIZE_ANGLE 0x3201 |
| #endif |
| |
| #if !defined(EGL_OPENGL_ES3_BIT) |
| #define EGL_OPENGL_ES3_BIT 0x00000040 |
| #endif |
| |
| // From ANGLE's egl/eglext.h. |
| |
| #ifndef EGL_ANGLE_platform_angle |
| #define EGL_ANGLE_platform_angle 1 |
| #define EGL_PLATFORM_ANGLE_ANGLE 0x3202 |
| #define EGL_PLATFORM_ANGLE_TYPE_ANGLE 0x3203 |
| #define EGL_PLATFORM_ANGLE_MAX_VERSION_MAJOR_ANGLE 0x3204 |
| #define EGL_PLATFORM_ANGLE_MAX_VERSION_MINOR_ANGLE 0x3205 |
| #define EGL_PLATFORM_ANGLE_TYPE_DEFAULT_ANGLE 0x3206 |
| #endif /* EGL_ANGLE_platform_angle */ |
| |
| #ifndef EGL_ANGLE_platform_angle_d3d |
| #define EGL_ANGLE_platform_angle_d3d 1 |
| #define EGL_PLATFORM_ANGLE_TYPE_D3D9_ANGLE 0x3207 |
| #define EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE 0x3208 |
| #define EGL_PLATFORM_ANGLE_DEVICE_TYPE_ANGLE 0x3209 |
| #define EGL_PLATFORM_ANGLE_DEVICE_TYPE_HARDWARE_ANGLE 0x320A |
| #define EGL_PLATFORM_ANGLE_DEVICE_TYPE_WARP_ANGLE 0x320B |
| #define EGL_PLATFORM_ANGLE_DEVICE_TYPE_REFERENCE_ANGLE 0x320C |
| #endif /* EGL_ANGLE_platform_angle_d3d */ |
| |
| #ifndef EGL_ANGLE_platform_angle_opengl |
| #define EGL_ANGLE_platform_angle_opengl 1 |
| #define EGL_PLATFORM_ANGLE_TYPE_OPENGL_ANGLE 0x320D |
| #define EGL_PLATFORM_ANGLE_TYPE_OPENGLES_ANGLE 0x320E |
| #endif /* EGL_ANGLE_platform_angle_opengl */ |
| |
| using ui::GetLastEGLErrorString; |
| |
| namespace gfx { |
| |
| #if defined(OS_WIN) |
| unsigned int NativeViewGLSurfaceEGL::current_swap_generation_ = 0; |
| unsigned int NativeViewGLSurfaceEGL::swaps_this_generation_ = 0; |
| unsigned int NativeViewGLSurfaceEGL::last_multiswap_generation_ = 0; |
| |
| const unsigned int MULTISWAP_FRAME_VSYNC_THRESHOLD = 60; |
| #endif |
| |
| namespace { |
| |
| EGLConfig g_config; |
| EGLDisplay g_display; |
| EGLNativeDisplayType g_native_display; |
| |
| const char* g_egl_extensions = NULL; |
| bool g_egl_create_context_robustness_supported = false; |
| bool g_egl_sync_control_supported = false; |
| bool g_egl_window_fixed_size_supported = false; |
| bool g_egl_surfaceless_context_supported = false; |
| |
| class EGLSyncControlVSyncProvider |
| : public gfx::SyncControlVSyncProvider { |
| public: |
| explicit EGLSyncControlVSyncProvider(EGLSurface surface) |
| : SyncControlVSyncProvider(), |
| surface_(surface) { |
| } |
| |
| ~EGLSyncControlVSyncProvider() override {} |
| |
| protected: |
| bool GetSyncValues(int64* system_time, |
| int64* media_stream_counter, |
| int64* swap_buffer_counter) override { |
| uint64 u_system_time, u_media_stream_counter, u_swap_buffer_counter; |
| bool result = eglGetSyncValuesCHROMIUM( |
| g_display, surface_, &u_system_time, |
| &u_media_stream_counter, &u_swap_buffer_counter) == EGL_TRUE; |
| if (result) { |
| *system_time = static_cast<int64>(u_system_time); |
| *media_stream_counter = static_cast<int64>(u_media_stream_counter); |
| *swap_buffer_counter = static_cast<int64>(u_swap_buffer_counter); |
| } |
| return result; |
| } |
| |
| bool GetMscRate(int32* numerator, int32* denominator) override { |
| return false; |
| } |
| |
| private: |
| EGLSurface surface_; |
| |
| DISALLOW_COPY_AND_ASSIGN(EGLSyncControlVSyncProvider); |
| }; |
| |
| EGLDisplay GetPlatformANGLEDisplay(EGLNativeDisplayType native_display, |
| EGLenum platform_type, |
| bool warpDevice) { |
| std::vector<EGLint> display_attribs; |
| |
| display_attribs.push_back(EGL_PLATFORM_ANGLE_TYPE_ANGLE); |
| display_attribs.push_back(platform_type); |
| |
| if (warpDevice) { |
| display_attribs.push_back(EGL_PLATFORM_ANGLE_DEVICE_TYPE_ANGLE); |
| display_attribs.push_back(EGL_PLATFORM_ANGLE_DEVICE_TYPE_WARP_ANGLE); |
| } |
| |
| display_attribs.push_back(EGL_NONE); |
| |
| return eglGetPlatformDisplayEXT(EGL_PLATFORM_ANGLE_ANGLE, |
| reinterpret_cast<void*>(native_display), |
| &display_attribs[0]); |
| } |
| |
| EGLDisplay GetDisplayFromType(DisplayType display_type, |
| EGLNativeDisplayType native_display) { |
| switch (display_type) { |
| case DEFAULT: |
| case SWIFT_SHADER: |
| return eglGetDisplay(native_display); |
| case ANGLE_WARP: |
| return GetPlatformANGLEDisplay(native_display, |
| EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE, true); |
| case ANGLE_D3D9: |
| return GetPlatformANGLEDisplay(native_display, |
| EGL_PLATFORM_ANGLE_TYPE_D3D9_ANGLE, false); |
| case ANGLE_D3D11: |
| return GetPlatformANGLEDisplay( |
| native_display, EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE, false); |
| case ANGLE_OPENGL: |
| return GetPlatformANGLEDisplay( |
| native_display, EGL_PLATFORM_ANGLE_TYPE_OPENGL_ANGLE, false); |
| case ANGLE_OPENGLES: |
| return GetPlatformANGLEDisplay( |
| native_display, EGL_PLATFORM_ANGLE_TYPE_OPENGLES_ANGLE, false); |
| default: |
| NOTREACHED(); |
| return EGL_NO_DISPLAY; |
| } |
| } |
| |
| const char* DisplayTypeString(DisplayType display_type) { |
| switch (display_type) { |
| case DEFAULT: |
| return "Default"; |
| case SWIFT_SHADER: |
| return "SwiftShader"; |
| case ANGLE_WARP: |
| return "WARP"; |
| case ANGLE_D3D9: |
| return "D3D9"; |
| case ANGLE_D3D11: |
| return "D3D11"; |
| case ANGLE_OPENGL: |
| return "OpenGL"; |
| case ANGLE_OPENGLES: |
| return "OpenGLES"; |
| default: |
| NOTREACHED(); |
| return "Err"; |
| } |
| } |
| |
| } // namespace |
| |
| void GetEGLInitDisplays(bool supports_angle_d3d, |
| bool supports_angle_opengl, |
| const base::CommandLine* command_line, |
| std::vector<DisplayType>* init_displays) { |
| // SwiftShader does not use the platform extensions |
| if (command_line->GetSwitchValueASCII(switches::kUseGL) == |
| kGLImplementationSwiftShaderName) { |
| init_displays->push_back(SWIFT_SHADER); |
| return; |
| } |
| |
| std::string requested_renderer = |
| command_line->GetSwitchValueASCII(switches::kUseANGLE); |
| |
| if (supports_angle_d3d) { |
| bool use_angle_default = |
| !command_line->HasSwitch(switches::kUseANGLE) || |
| requested_renderer == kANGLEImplementationDefaultName; |
| |
| if (use_angle_default) { |
| // Default mode for ANGLE - try D3D11, else try D3D9 |
| if (!command_line->HasSwitch(switches::kDisableD3D11)) { |
| init_displays->push_back(ANGLE_D3D11); |
| } |
| init_displays->push_back(ANGLE_D3D9); |
| } else { |
| if (requested_renderer == kANGLEImplementationD3D11Name) { |
| init_displays->push_back(ANGLE_D3D11); |
| } |
| if (requested_renderer == kANGLEImplementationD3D9Name) { |
| init_displays->push_back(ANGLE_D3D9); |
| } |
| if (requested_renderer == kANGLEImplementationWARPName) { |
| init_displays->push_back(ANGLE_WARP); |
| } |
| } |
| } |
| |
| if (supports_angle_opengl) { |
| if (requested_renderer == kANGLEImplementationOpenGLName) { |
| init_displays->push_back(ANGLE_OPENGL); |
| } |
| if (requested_renderer == kANGLEImplementationOpenGLESName) { |
| init_displays->push_back(ANGLE_OPENGLES); |
| } |
| } |
| |
| // If no displays are available due to missing angle extensions or invalid |
| // flags, request the default display. |
| if (init_displays->empty()) { |
| init_displays->push_back(DEFAULT); |
| } |
| } |
| |
| GLSurfaceEGL::GLSurfaceEGL() {} |
| |
| bool GLSurfaceEGL::InitializeOneOff() { |
| static bool initialized = false; |
| if (initialized) |
| return true; |
| |
| InitializeDisplay(); |
| if (g_display == EGL_NO_DISPLAY) |
| return false; |
| |
| // Choose an EGL configuration. |
| // On X this is only used for PBuffer surfaces. |
| EGLint renderable_type = EGL_OPENGL_ES2_BIT; |
| if (base::CommandLine::ForCurrentProcess()->HasSwitch( |
| switches::kEnableUnsafeES3APIs)) { |
| renderable_type = EGL_OPENGL_ES3_BIT; |
| } |
| const EGLint kConfigAttribs[] = { |
| EGL_BUFFER_SIZE, 32, |
| EGL_ALPHA_SIZE, 8, |
| EGL_BLUE_SIZE, 8, |
| EGL_GREEN_SIZE, 8, |
| EGL_RED_SIZE, 8, |
| EGL_RENDERABLE_TYPE, renderable_type, |
| EGL_SURFACE_TYPE, EGL_WINDOW_BIT | EGL_PBUFFER_BIT, |
| EGL_NONE |
| }; |
| |
| #if defined(USE_OZONE) |
| const EGLint* config_attribs = ui::OzonePlatform::GetInstance() |
| ->GetSurfaceFactoryOzone() |
| ->GetEGLSurfaceProperties(kConfigAttribs); |
| #else |
| const EGLint* config_attribs = kConfigAttribs; |
| #endif |
| |
| EGLint num_configs; |
| if (!eglChooseConfig(g_display, |
| config_attribs, |
| NULL, |
| 0, |
| &num_configs)) { |
| LOG(ERROR) << "eglChooseConfig failed with error " |
| << GetLastEGLErrorString(); |
| return false; |
| } |
| |
| if (num_configs == 0) { |
| LOG(ERROR) << "No suitable EGL configs found."; |
| return false; |
| } |
| |
| if (!eglChooseConfig(g_display, |
| config_attribs, |
| &g_config, |
| 1, |
| &num_configs)) { |
| LOG(ERROR) << "eglChooseConfig failed with error " |
| << GetLastEGLErrorString(); |
| return false; |
| } |
| |
| g_egl_extensions = eglQueryString(g_display, EGL_EXTENSIONS); |
| g_egl_create_context_robustness_supported = |
| HasEGLExtension("EGL_EXT_create_context_robustness"); |
| g_egl_sync_control_supported = |
| HasEGLExtension("EGL_CHROMIUM_sync_control"); |
| g_egl_window_fixed_size_supported = |
| HasEGLExtension("EGL_ANGLE_window_fixed_size"); |
| |
| // TODO(oetuaho@nvidia.com): Surfaceless is disabled on Android as a temporary |
| // workaround, since code written for Android WebView takes different paths |
| // based on whether GL surface objects have underlying EGL surface handles, |
| // conflicting with the use of surfaceless. See https://crbug.com/382349 |
| #if defined(OS_ANDROID) |
| DCHECK(!g_egl_surfaceless_context_supported); |
| #else |
| // Check if SurfacelessEGL is supported. |
| g_egl_surfaceless_context_supported = |
| HasEGLExtension("EGL_KHR_surfaceless_context"); |
| if (g_egl_surfaceless_context_supported) { |
| // EGL_KHR_surfaceless_context is supported but ensure |
| // GL_OES_surfaceless_context is also supported. We need a current context |
| // to query for supported GL extensions. |
| scoped_refptr<GLSurface> surface = new SurfacelessEGL(Size(1, 1)); |
| scoped_refptr<GLContext> context = GLContext::CreateGLContext( |
| NULL, surface.get(), PreferIntegratedGpu); |
| if (!context->MakeCurrent(surface.get())) |
| g_egl_surfaceless_context_supported = false; |
| |
| // Ensure context supports GL_OES_surfaceless_context. |
| if (g_egl_surfaceless_context_supported) { |
| g_egl_surfaceless_context_supported = context->HasExtension( |
| "GL_OES_surfaceless_context"); |
| context->ReleaseCurrent(surface.get()); |
| } |
| } |
| #endif |
| |
| initialized = true; |
| |
| return true; |
| } |
| |
| EGLDisplay GLSurfaceEGL::GetDisplay() { |
| return g_display; |
| } |
| |
| EGLDisplay GLSurfaceEGL::GetHardwareDisplay() { |
| return g_display; |
| } |
| |
| EGLNativeDisplayType GLSurfaceEGL::GetNativeDisplay() { |
| return g_native_display; |
| } |
| |
| const char* GLSurfaceEGL::GetEGLExtensions() { |
| return g_egl_extensions; |
| } |
| |
| bool GLSurfaceEGL::HasEGLExtension(const char* name) { |
| return ExtensionsContain(GetEGLExtensions(), name); |
| } |
| |
| bool GLSurfaceEGL::IsCreateContextRobustnessSupported() { |
| return g_egl_create_context_robustness_supported; |
| } |
| |
| bool GLSurfaceEGL::IsEGLSurfacelessContextSupported() { |
| return g_egl_surfaceless_context_supported; |
| } |
| |
| GLSurfaceEGL::~GLSurfaceEGL() {} |
| |
| // InitializeDisplay is necessary because the static binding code |
| // needs a full Display init before it can query the Display extensions. |
| // static |
| EGLDisplay GLSurfaceEGL::InitializeDisplay() { |
| if (g_display != EGL_NO_DISPLAY) { |
| return g_display; |
| } |
| |
| g_native_display = GetPlatformDefaultEGLNativeDisplay(); |
| |
| // If EGL_EXT_client_extensions not supported this call to eglQueryString |
| // will return NULL. |
| const char* client_extensions = |
| eglQueryString(EGL_NO_DISPLAY, EGL_EXTENSIONS); |
| |
| bool supports_angle_d3d = false; |
| bool supports_angle_opengl = false; |
| // Check for availability of ANGLE extensions. |
| if (client_extensions && |
| ExtensionsContain(client_extensions, "EGL_ANGLE_platform_angle")) { |
| supports_angle_d3d = |
| ExtensionsContain(client_extensions, "EGL_ANGLE_platform_angle_d3d"); |
| supports_angle_opengl = |
| ExtensionsContain(client_extensions, "EGL_ANGLE_platform_angle_opengl"); |
| } |
| |
| std::vector<DisplayType> init_displays; |
| GetEGLInitDisplays(supports_angle_d3d, supports_angle_opengl, |
| base::CommandLine::ForCurrentProcess(), &init_displays); |
| |
| for (size_t disp_index = 0; disp_index < init_displays.size(); ++disp_index) { |
| DisplayType display_type = init_displays[disp_index]; |
| EGLDisplay display = |
| GetDisplayFromType(display_type, g_native_display); |
| if (display == EGL_NO_DISPLAY) { |
| LOG(ERROR) << "EGL display query failed with error " |
| << GetLastEGLErrorString(); |
| } |
| |
| if (!eglInitialize(display, nullptr, nullptr)) { |
| bool is_last = disp_index == init_displays.size() - 1; |
| |
| LOG(ERROR) << "eglInitialize " << DisplayTypeString(display_type) |
| << " failed with error " << GetLastEGLErrorString() |
| << (is_last ? "" : ", trying next display type"); |
| } else { |
| UMA_HISTOGRAM_ENUMERATION("GPU.EGLDisplayType", display_type, |
| DISPLAY_TYPE_MAX); |
| g_display = display; |
| break; |
| } |
| } |
| |
| return g_display; |
| } |
| |
| NativeViewGLSurfaceEGL::NativeViewGLSurfaceEGL(EGLNativeWindowType window) |
| : window_(window), |
| surface_(NULL), |
| supports_post_sub_buffer_(false), |
| config_(NULL), |
| size_(1, 1), |
| swap_interval_(1) { |
| #if defined(OS_ANDROID) |
| if (window) |
| ANativeWindow_acquire(window); |
| #endif |
| |
| #if defined(OS_WIN) |
| vsync_override_ = false; |
| swap_generation_ = 0; |
| RECT windowRect; |
| if (GetClientRect(window_, &windowRect)) |
| size_ = gfx::Rect(windowRect).size(); |
| #endif |
| } |
| |
| bool NativeViewGLSurfaceEGL::Initialize() { |
| return Initialize(nullptr); |
| } |
| |
| bool NativeViewGLSurfaceEGL::Initialize( |
| scoped_ptr<VSyncProvider> sync_provider) { |
| DCHECK(!surface_); |
| |
| if (!GetDisplay()) { |
| LOG(ERROR) << "Trying to create surface with invalid display."; |
| return false; |
| } |
| |
| std::vector<EGLint> egl_window_attributes; |
| |
| if (g_egl_window_fixed_size_supported) { |
| egl_window_attributes.push_back(EGL_FIXED_SIZE_ANGLE); |
| egl_window_attributes.push_back(EGL_TRUE); |
| egl_window_attributes.push_back(EGL_WIDTH); |
| egl_window_attributes.push_back(size_.width()); |
| egl_window_attributes.push_back(EGL_HEIGHT); |
| egl_window_attributes.push_back(size_.height()); |
| } |
| |
| if (gfx::g_driver_egl.ext.b_EGL_NV_post_sub_buffer) { |
| egl_window_attributes.push_back(EGL_POST_SUB_BUFFER_SUPPORTED_NV); |
| egl_window_attributes.push_back(EGL_TRUE); |
| } |
| |
| egl_window_attributes.push_back(EGL_NONE); |
| // Create a surface for the native window. |
| surface_ = eglCreateWindowSurface( |
| GetDisplay(), GetConfig(), window_, &egl_window_attributes[0]); |
| |
| if (!surface_) { |
| LOG(ERROR) << "eglCreateWindowSurface failed with error " |
| << GetLastEGLErrorString(); |
| Destroy(); |
| return false; |
| } |
| |
| if (gfx::g_driver_egl.ext.b_EGL_NV_post_sub_buffer) { |
| EGLint surfaceVal; |
| EGLBoolean retVal = eglQuerySurface( |
| GetDisplay(), surface_, EGL_POST_SUB_BUFFER_SUPPORTED_NV, &surfaceVal); |
| supports_post_sub_buffer_ = (surfaceVal && retVal) == EGL_TRUE; |
| } |
| |
| if (sync_provider) |
| vsync_provider_.reset(sync_provider.release()); |
| else if (g_egl_sync_control_supported) |
| vsync_provider_.reset(new EGLSyncControlVSyncProvider(surface_)); |
| return true; |
| } |
| |
| void NativeViewGLSurfaceEGL::Destroy() { |
| if (surface_) { |
| if (!eglDestroySurface(GetDisplay(), surface_)) { |
| LOG(ERROR) << "eglDestroySurface failed with error " |
| << GetLastEGLErrorString(); |
| } |
| surface_ = NULL; |
| } |
| } |
| |
| EGLConfig NativeViewGLSurfaceEGL::GetConfig() { |
| #if !defined(USE_X11) |
| return g_config; |
| #else |
| if (!config_) { |
| // Get a config compatible with the window |
| DCHECK(window_); |
| XWindowAttributes win_attribs; |
| if (!XGetWindowAttributes(GetNativeDisplay(), window_, &win_attribs)) { |
| return NULL; |
| } |
| |
| // Try matching the window depth with an alpha channel, |
| // because we're worried the destination alpha width could |
| // constrain blending precision. |
| const int kBufferSizeOffset = 1; |
| const int kAlphaSizeOffset = 3; |
| EGLint config_attribs[] = { |
| EGL_BUFFER_SIZE, ~0, |
| EGL_ALPHA_SIZE, 8, |
| EGL_BLUE_SIZE, 8, |
| EGL_GREEN_SIZE, 8, |
| EGL_RED_SIZE, 8, |
| EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT, |
| EGL_SURFACE_TYPE, EGL_WINDOW_BIT | EGL_PBUFFER_BIT, |
| EGL_NONE |
| }; |
| config_attribs[kBufferSizeOffset] = win_attribs.depth; |
| |
| EGLint num_configs; |
| if (!eglChooseConfig(g_display, |
| config_attribs, |
| &config_, |
| 1, |
| &num_configs)) { |
| LOG(ERROR) << "eglChooseConfig failed with error " |
| << GetLastEGLErrorString(); |
| return NULL; |
| } |
| |
| if (num_configs) { |
| EGLint config_depth; |
| if (!eglGetConfigAttrib(g_display, |
| config_, |
| EGL_BUFFER_SIZE, |
| &config_depth)) { |
| LOG(ERROR) << "eglGetConfigAttrib failed with error " |
| << GetLastEGLErrorString(); |
| return NULL; |
| } |
| |
| if (config_depth == win_attribs.depth) { |
| return config_; |
| } |
| } |
| |
| // Try without an alpha channel. |
| config_attribs[kAlphaSizeOffset] = 0; |
| if (!eglChooseConfig(g_display, |
| config_attribs, |
| &config_, |
| 1, |
| &num_configs)) { |
| LOG(ERROR) << "eglChooseConfig failed with error " |
| << GetLastEGLErrorString(); |
| return NULL; |
| } |
| |
| if (num_configs == 0) { |
| LOG(ERROR) << "No suitable EGL configs found."; |
| return NULL; |
| } |
| } |
| return config_; |
| #endif |
| } |
| |
| bool NativeViewGLSurfaceEGL::IsOffscreen() { |
| return false; |
| } |
| |
| gfx::SwapResult NativeViewGLSurfaceEGL::SwapBuffers() { |
| TRACE_EVENT2("gpu", "NativeViewGLSurfaceEGL:RealSwapBuffers", |
| "width", GetSize().width(), |
| "height", GetSize().height()); |
| |
| #if defined(OS_WIN) |
| if (swap_interval_ != 0) { |
| // This code is a simple way of enforcing that we only vsync if one surface |
| // is swapping per frame. This provides single window cases a stable refresh |
| // while allowing multi-window cases to not slow down due to multiple syncs |
| // on a single thread. A better way to fix this problem would be to have |
| // each surface present on its own thread. |
| |
| if (current_swap_generation_ == swap_generation_) { |
| if (swaps_this_generation_ > 1) |
| last_multiswap_generation_ = current_swap_generation_; |
| swaps_this_generation_ = 0; |
| current_swap_generation_++; |
| } |
| |
| swap_generation_ = current_swap_generation_; |
| |
| if (swaps_this_generation_ != 0 || |
| (current_swap_generation_ - last_multiswap_generation_ < |
| MULTISWAP_FRAME_VSYNC_THRESHOLD)) { |
| // Override vsync settings and switch it off |
| if (!vsync_override_) { |
| eglSwapInterval(GetDisplay(), 0); |
| vsync_override_ = true; |
| } |
| } else if (vsync_override_) { |
| // Only one window swapping, so let the normal vsync setting take over |
| eglSwapInterval(GetDisplay(), swap_interval_); |
| vsync_override_ = false; |
| } |
| |
| swaps_this_generation_++; |
| } |
| #endif |
| |
| if (!eglSwapBuffers(GetDisplay(), surface_)) { |
| DVLOG(1) << "eglSwapBuffers failed with error " |
| << GetLastEGLErrorString(); |
| return gfx::SwapResult::SWAP_FAILED; |
| } |
| |
| return gfx::SwapResult::SWAP_ACK; |
| } |
| |
| gfx::Size NativeViewGLSurfaceEGL::GetSize() { |
| EGLint width; |
| EGLint height; |
| if (!eglQuerySurface(GetDisplay(), surface_, EGL_WIDTH, &width) || |
| !eglQuerySurface(GetDisplay(), surface_, EGL_HEIGHT, &height)) { |
| NOTREACHED() << "eglQuerySurface failed with error " |
| << GetLastEGLErrorString(); |
| return gfx::Size(); |
| } |
| |
| return gfx::Size(width, height); |
| } |
| |
| bool NativeViewGLSurfaceEGL::Resize(const gfx::Size& size, float scale_factor) { |
| if (size == GetSize()) |
| return true; |
| |
| size_ = size; |
| |
| scoped_ptr<ui::ScopedMakeCurrent> scoped_make_current; |
| GLContext* current_context = GLContext::GetCurrent(); |
| bool was_current = |
| current_context && current_context->IsCurrent(this); |
| if (was_current) { |
| scoped_make_current.reset( |
| new ui::ScopedMakeCurrent(current_context, this)); |
| current_context->ReleaseCurrent(this); |
| } |
| |
| Destroy(); |
| |
| if (!Initialize()) { |
| LOG(ERROR) << "Failed to resize window."; |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool NativeViewGLSurfaceEGL::Recreate() { |
| Destroy(); |
| if (!Initialize()) { |
| LOG(ERROR) << "Failed to create surface."; |
| return false; |
| } |
| return true; |
| } |
| |
| EGLSurface NativeViewGLSurfaceEGL::GetHandle() { |
| return surface_; |
| } |
| |
| bool NativeViewGLSurfaceEGL::SupportsPostSubBuffer() { |
| return supports_post_sub_buffer_; |
| } |
| |
| gfx::SwapResult NativeViewGLSurfaceEGL::PostSubBuffer(int x, |
| int y, |
| int width, |
| int height) { |
| DCHECK(supports_post_sub_buffer_); |
| if (!eglPostSubBufferNV(GetDisplay(), surface_, x, y, width, height)) { |
| DVLOG(1) << "eglPostSubBufferNV failed with error " |
| << GetLastEGLErrorString(); |
| return gfx::SwapResult::SWAP_FAILED; |
| } |
| return gfx::SwapResult::SWAP_ACK; |
| } |
| |
| VSyncProvider* NativeViewGLSurfaceEGL::GetVSyncProvider() { |
| return vsync_provider_.get(); |
| } |
| |
| void NativeViewGLSurfaceEGL::OnSetSwapInterval(int interval) { |
| swap_interval_ = interval; |
| } |
| |
| NativeViewGLSurfaceEGL::~NativeViewGLSurfaceEGL() { |
| Destroy(); |
| #if defined(OS_ANDROID) |
| if (window_) |
| ANativeWindow_release(window_); |
| #endif |
| } |
| |
| PbufferGLSurfaceEGL::PbufferGLSurfaceEGL(const gfx::Size& size) |
| : size_(size), |
| surface_(NULL) { |
| // Some implementations of Pbuffer do not support having a 0 size. For such |
| // cases use a (1, 1) surface. |
| if (size_.GetArea() == 0) |
| size_.SetSize(1, 1); |
| } |
| |
| bool PbufferGLSurfaceEGL::Initialize() { |
| EGLSurface old_surface = surface_; |
| |
| EGLDisplay display = GetDisplay(); |
| if (!display) { |
| LOG(ERROR) << "Trying to create surface with invalid display."; |
| return false; |
| } |
| |
| // Allocate the new pbuffer surface before freeing the old one to ensure |
| // they have different addresses. If they have the same address then a |
| // future call to MakeCurrent might early out because it appears the current |
| // context and surface have not changed. |
| const EGLint pbuffer_attribs[] = { |
| EGL_WIDTH, size_.width(), |
| EGL_HEIGHT, size_.height(), |
| EGL_NONE |
| }; |
| |
| EGLSurface new_surface = eglCreatePbufferSurface(display, |
| GetConfig(), |
| pbuffer_attribs); |
| if (!new_surface) { |
| LOG(ERROR) << "eglCreatePbufferSurface failed with error " |
| << GetLastEGLErrorString(); |
| return false; |
| } |
| |
| if (old_surface) |
| eglDestroySurface(display, old_surface); |
| |
| surface_ = new_surface; |
| return true; |
| } |
| |
| void PbufferGLSurfaceEGL::Destroy() { |
| if (surface_) { |
| if (!eglDestroySurface(GetDisplay(), surface_)) { |
| LOG(ERROR) << "eglDestroySurface failed with error " |
| << GetLastEGLErrorString(); |
| } |
| surface_ = NULL; |
| } |
| } |
| |
| EGLConfig PbufferGLSurfaceEGL::GetConfig() { |
| return g_config; |
| } |
| |
| bool PbufferGLSurfaceEGL::IsOffscreen() { |
| return true; |
| } |
| |
| gfx::SwapResult PbufferGLSurfaceEGL::SwapBuffers() { |
| NOTREACHED() << "Attempted to call SwapBuffers on a PbufferGLSurfaceEGL."; |
| return gfx::SwapResult::SWAP_FAILED; |
| } |
| |
| gfx::Size PbufferGLSurfaceEGL::GetSize() { |
| return size_; |
| } |
| |
| bool PbufferGLSurfaceEGL::Resize(const gfx::Size& size, float scale_factor) { |
| if (size == size_) |
| return true; |
| |
| scoped_ptr<ui::ScopedMakeCurrent> scoped_make_current; |
| GLContext* current_context = GLContext::GetCurrent(); |
| bool was_current = |
| current_context && current_context->IsCurrent(this); |
| if (was_current) { |
| scoped_make_current.reset( |
| new ui::ScopedMakeCurrent(current_context, this)); |
| } |
| |
| size_ = size; |
| |
| if (!Initialize()) { |
| LOG(ERROR) << "Failed to resize pbuffer."; |
| return false; |
| } |
| |
| return true; |
| } |
| |
| EGLSurface PbufferGLSurfaceEGL::GetHandle() { |
| return surface_; |
| } |
| |
| void* PbufferGLSurfaceEGL::GetShareHandle() { |
| #if defined(OS_ANDROID) |
| NOTREACHED(); |
| return NULL; |
| #else |
| if (!gfx::g_driver_egl.ext.b_EGL_ANGLE_query_surface_pointer) |
| return NULL; |
| |
| if (!gfx::g_driver_egl.ext.b_EGL_ANGLE_surface_d3d_texture_2d_share_handle) |
| return NULL; |
| |
| void* handle; |
| if (!eglQuerySurfacePointerANGLE(g_display, |
| GetHandle(), |
| EGL_D3D_TEXTURE_2D_SHARE_HANDLE_ANGLE, |
| &handle)) { |
| return NULL; |
| } |
| |
| return handle; |
| #endif |
| } |
| |
| PbufferGLSurfaceEGL::~PbufferGLSurfaceEGL() { |
| Destroy(); |
| } |
| |
| SurfacelessEGL::SurfacelessEGL(const gfx::Size& size) |
| : size_(size) { |
| } |
| |
| bool SurfacelessEGL::Initialize() { |
| return true; |
| } |
| |
| void SurfacelessEGL::Destroy() { |
| } |
| |
| EGLConfig SurfacelessEGL::GetConfig() { |
| return g_config; |
| } |
| |
| bool SurfacelessEGL::IsOffscreen() { |
| return true; |
| } |
| |
| bool SurfacelessEGL::IsSurfaceless() const { |
| return true; |
| } |
| |
| gfx::SwapResult SurfacelessEGL::SwapBuffers() { |
| LOG(ERROR) << "Attempted to call SwapBuffers with SurfacelessEGL."; |
| return gfx::SwapResult::SWAP_FAILED; |
| } |
| |
| gfx::Size SurfacelessEGL::GetSize() { |
| return size_; |
| } |
| |
| bool SurfacelessEGL::Resize(const gfx::Size& size, float scale_factor) { |
| size_ = size; |
| return true; |
| } |
| |
| EGLSurface SurfacelessEGL::GetHandle() { |
| return EGL_NO_SURFACE; |
| } |
| |
| void* SurfacelessEGL::GetShareHandle() { |
| return NULL; |
| } |
| |
| SurfacelessEGL::~SurfacelessEGL() { |
| } |
| |
| } // namespace gfx |