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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/gl/gl_egl_api_implementation.h"
#include "base/strings/string_split.h"
#include "base/strings/string_util.h"
#include "ui/gl/gl_context.h"
#include "ui/gl/gl_implementation.h"
#include "ui/gl/gl_implementation_wrapper.h"
#include "ui/gl/gl_surface_egl.h"
namespace gl {
GL_IMPL_WRAPPER_TYPE(EGL) * g_egl_wrapper = nullptr;
void InitializeStaticGLBindingsEGL() {
g_driver_egl.InitializeStaticBindings(GetGLProcAddress);
if (!g_egl_wrapper) {
auto real_api = std::make_unique<RealEGLApi>();
real_api->Initialize(&g_driver_egl);
g_egl_wrapper = new GL_IMPL_WRAPPER_TYPE(EGL)(std::move(real_api));
}
g_current_egl_context = g_egl_wrapper->api();
g_driver_egl.client_ext.InitializeClientExtensionSettings();
}
void ClearBindingsEGL() {
delete g_egl_wrapper;
g_egl_wrapper = nullptr;
g_current_egl_context = nullptr;
g_driver_egl.ClearBindings();
}
EGLApi::EGLApi() {
}
EGLApi::~EGLApi() {
}
EGLApiBase::EGLApiBase() : driver_(nullptr) {}
EGLApiBase::~EGLApiBase() {
}
void EGLApiBase::InitializeBase(DriverEGL* driver) {
driver_ = driver;
}
RealEGLApi::RealEGLApi() {
}
RealEGLApi::~RealEGLApi() {
}
void RealEGLApi::Initialize(DriverEGL* driver) {
InitializeBase(driver);
}
void RealEGLApi::SetDisabledExtensions(const std::string& disabled_extensions) {
DCHECK(GLContext::TotalGLContexts() == 0);
disabled_exts_.clear();
filtered_exts_.clear();
if (!disabled_extensions.empty()) {
std::vector<std::string> candidates =
base::SplitString(disabled_extensions, ", ;", base::KEEP_WHITESPACE,
base::SPLIT_WANT_NONEMPTY);
for (const auto& ext : candidates) {
if (!ext.starts_with("EGL_")) {
continue;
}
// For the moment, only the following two extensions can be disabled.
// See DriverEGL::UpdateConditionalExtensionBindings().
DCHECK(ext == "EGL_KHR_fence_sync" || ext == "EGL_KHR_wait_sync");
disabled_exts_.push_back(ext);
}
}
}
const char* RealEGLApi::eglQueryStringFn(EGLDisplay dpy, EGLint name) {
if (name == EGL_EXTENSIONS) {
auto it = filtered_exts_.find(dpy);
if (it == filtered_exts_.end()) {
it = filtered_exts_
.emplace(dpy, FilterGLExtensionList(
EGLApiBase::eglQueryStringFn(dpy, name),
disabled_exts_))
.first;
}
return (*it).second.c_str();
}
return EGLApiBase::eglQueryStringFn(dpy, name);
}
LogEGLApi::LogEGLApi(EGLApi* egl_api) : egl_api_(egl_api) {}
LogEGLApi::~LogEGLApi() {}
void LogEGLApi::SetDisabledExtensions(const std::string& disabled_extensions) {
if (egl_api_) {
egl_api_->SetDisabledExtensions(disabled_extensions);
}
}
TraceEGLApi::~TraceEGLApi() {
}
void TraceEGLApi::SetDisabledExtensions(
const std::string& disabled_extensions) {
if (egl_api_) {
egl_api_->SetDisabledExtensions(disabled_extensions);
}
}
bool GetGLWindowSystemBindingInfoEGL(GLWindowSystemBindingInfo* info) {
EGLDisplay display = eglGetCurrentDisplay();
const char* vendor = eglQueryString(display, EGL_VENDOR);
const char* version = eglQueryString(display, EGL_VERSION);
const char* extensions = eglQueryString(display, EGL_EXTENSIONS);
*info = GLWindowSystemBindingInfo();
if (vendor)
info->vendor = vendor;
if (version)
info->version = version;
if (extensions)
info->extensions = extensions;
return true;
}
void SetDisabledExtensionsEGL(const std::string& disabled_extensions) {
DCHECK(g_current_egl_context);
DCHECK(GLContext::TotalGLContexts() == 0);
g_current_egl_context->SetDisabledExtensions(disabled_extensions);
}
bool InitializeExtensionSettingsOneOffEGL(GLDisplayEGL* display) {
return display->InitializeExtensionSettings();
}
} // namespace gl
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