| // 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 <EGL/egl.h> |
| #include <stdint.h> |
| |
| #include "base/command_line.h" |
| #include "base/environment.h" |
| #include "base/strings/string_split.h" |
| #include "base/strings/string_util.h" |
| #include "base/strings/utf_string_conversions.h" |
| #include "gpu/command_buffer/client/gles2_lib.h" |
| #include "gpu/command_buffer/service/gpu_switches.h" |
| #include "gpu/config/gpu_util.h" |
| #include "gpu/gles2_conform_support/egl/display.h" |
| #include "ui/gl/gl_context.h" |
| #include "ui/gl/gl_surface.h" |
| |
| #if REGAL_STATIC_EGL |
| extern "C" { |
| |
| typedef EGLContext RegalSystemContext; |
| #define REGAL_DECL |
| REGAL_DECL void RegalMakeCurrent( RegalSystemContext ctx ); |
| |
| } // extern "C" |
| #endif |
| |
| namespace { |
| void SetCurrentError(EGLint error_code) { |
| } |
| |
| template<typename T> |
| T EglError(EGLint error_code, T return_value) { |
| SetCurrentError(error_code); |
| return return_value; |
| } |
| |
| template<typename T> |
| T EglSuccess(T return_value) { |
| SetCurrentError(EGL_SUCCESS); |
| return return_value; |
| } |
| |
| EGLint ValidateDisplay(EGLDisplay dpy) { |
| if (dpy == EGL_NO_DISPLAY) |
| return EGL_BAD_DISPLAY; |
| |
| egl::Display* display = static_cast<egl::Display*>(dpy); |
| if (!display->is_initialized()) |
| return EGL_NOT_INITIALIZED; |
| |
| return EGL_SUCCESS; |
| } |
| |
| EGLint ValidateDisplayConfig(EGLDisplay dpy, EGLConfig config) { |
| EGLint error_code = ValidateDisplay(dpy); |
| if (error_code != EGL_SUCCESS) |
| return error_code; |
| |
| egl::Display* display = static_cast<egl::Display*>(dpy); |
| if (!display->IsValidConfig(config)) |
| return EGL_BAD_CONFIG; |
| |
| return EGL_SUCCESS; |
| } |
| |
| EGLint ValidateDisplaySurface(EGLDisplay dpy, EGLSurface surface) { |
| EGLint error_code = ValidateDisplay(dpy); |
| if (error_code != EGL_SUCCESS) |
| return error_code; |
| |
| egl::Display* display = static_cast<egl::Display*>(dpy); |
| if (!display->IsValidSurface(surface)) |
| return EGL_BAD_SURFACE; |
| |
| return EGL_SUCCESS; |
| } |
| |
| EGLint ValidateDisplayContext(EGLDisplay dpy, EGLContext context) { |
| EGLint error_code = ValidateDisplay(dpy); |
| if (error_code != EGL_SUCCESS) |
| return error_code; |
| |
| egl::Display* display = static_cast<egl::Display*>(dpy); |
| if (!display->IsValidContext(context)) |
| return EGL_BAD_CONTEXT; |
| |
| return EGL_SUCCESS; |
| } |
| } // namespace |
| |
| extern "C" { |
| EGLAPI EGLint EGLAPIENTRY eglGetError() { |
| // TODO(alokp): Fix me. |
| return EGL_SUCCESS; |
| } |
| |
| EGLAPI EGLDisplay EGLAPIENTRY eglGetDisplay(EGLNativeDisplayType display_id) { |
| return new egl::Display(display_id); |
| } |
| |
| EGLAPI EGLBoolean EGLAPIENTRY eglInitialize(EGLDisplay dpy, |
| EGLint* major, |
| EGLint* minor) { |
| if (dpy == EGL_NO_DISPLAY) |
| return EglError(EGL_BAD_DISPLAY, EGL_FALSE); |
| |
| egl::Display* display = static_cast<egl::Display*>(dpy); |
| if (!display->Initialize()) |
| return EglError(EGL_NOT_INITIALIZED, EGL_FALSE); |
| |
| // eglInitialize can be called multiple times, prevent InitializeOneOff from |
| // being called multiple times. |
| if (gfx::GetGLImplementation() == gfx::kGLImplementationNone) { |
| base::CommandLine::StringVector argv; |
| scoped_ptr<base::Environment> env(base::Environment::Create()); |
| std::string env_string; |
| env->GetVar("CHROME_COMMAND_BUFFER_GLES2_ARGS", &env_string); |
| #if defined(OS_WIN) |
| argv = base::SplitString(base::UTF8ToUTF16(env_string), |
| base::kWhitespaceUTF16, base::TRIM_WHITESPACE, |
| base::SPLIT_WANT_NONEMPTY); |
| argv.insert(argv.begin(), base::UTF8ToUTF16("dummy")); |
| #else |
| argv = base::SplitString(env_string, |
| base::kWhitespaceASCII, base::TRIM_WHITESPACE, |
| base::SPLIT_WANT_NONEMPTY); |
| argv.insert(argv.begin(), "dummy"); |
| #endif |
| base::CommandLine::Init(0, nullptr); |
| base::CommandLine* command_line = base::CommandLine::ForCurrentProcess(); |
| // Need to call both Init and InitFromArgv, since Windows does not use |
| // argc, argv in CommandLine::Init(argc, argv). |
| command_line->InitFromArgv(argv); |
| if (!command_line->HasSwitch(switches::kDisableGpuDriverBugWorkarounds)) { |
| gpu::ApplyGpuDriverBugWorkarounds(command_line); |
| } |
| |
| gfx::GLSurface::InitializeOneOff(); |
| } |
| |
| *major = 1; |
| *minor = 4; |
| return EglSuccess(EGL_TRUE); |
| } |
| |
| EGLAPI EGLBoolean EGLAPIENTRY eglTerminate(EGLDisplay dpy) { |
| EGLint error_code = ValidateDisplay(dpy); |
| if (error_code != EGL_SUCCESS) |
| return EglError(error_code, EGL_FALSE); |
| |
| egl::Display* display = static_cast<egl::Display*>(dpy); |
| delete display; |
| |
| return EglSuccess(EGL_TRUE); |
| } |
| |
| EGLAPI const char* EGLAPIENTRY eglQueryString(EGLDisplay dpy, EGLint name) { |
| EGLint error_code = ValidateDisplay(dpy); |
| if (error_code != EGL_SUCCESS) |
| return EglError(error_code, static_cast<const char*>(NULL)); |
| |
| switch (name) { |
| case EGL_CLIENT_APIS: |
| return EglSuccess("OpenGL_ES"); |
| case EGL_EXTENSIONS: |
| return EglSuccess(""); |
| case EGL_VENDOR: |
| return EglSuccess("Google Inc."); |
| case EGL_VERSION: |
| return EglSuccess("1.4"); |
| default: |
| return EglError(EGL_BAD_PARAMETER, static_cast<const char*>(NULL)); |
| } |
| } |
| |
| EGLAPI EGLBoolean EGLAPIENTRY eglChooseConfig(EGLDisplay dpy, |
| const EGLint* attrib_list, |
| EGLConfig* configs, |
| EGLint config_size, |
| EGLint* num_config) { |
| EGLint error_code = ValidateDisplay(dpy); |
| if (error_code != EGL_SUCCESS) |
| return EglError(error_code, EGL_FALSE); |
| |
| if (num_config == NULL) |
| return EglError(EGL_BAD_PARAMETER, EGL_FALSE); |
| |
| egl::Display* display = static_cast<egl::Display*>(dpy); |
| if (!display->ChooseConfigs(configs, config_size, num_config)) |
| return EglError(EGL_BAD_ATTRIBUTE, EGL_FALSE); |
| |
| return EglSuccess(EGL_TRUE); |
| } |
| |
| EGLAPI EGLBoolean EGLAPIENTRY eglGetConfigs(EGLDisplay dpy, |
| EGLConfig* configs, |
| EGLint config_size, |
| EGLint* num_config) { |
| EGLint error_code = ValidateDisplay(dpy); |
| if (error_code != EGL_SUCCESS) |
| return EglError(error_code, EGL_FALSE); |
| |
| if (num_config == NULL) |
| return EglError(EGL_BAD_PARAMETER, EGL_FALSE); |
| |
| egl::Display* display = static_cast<egl::Display*>(dpy); |
| if (!display->GetConfigs(configs, config_size, num_config)) |
| return EglError(EGL_BAD_ATTRIBUTE, EGL_FALSE); |
| |
| return EglSuccess(EGL_TRUE); |
| } |
| |
| EGLAPI EGLBoolean EGLAPIENTRY eglGetConfigAttrib(EGLDisplay dpy, |
| EGLConfig config, |
| EGLint attribute, |
| EGLint* value) { |
| EGLint error_code = ValidateDisplayConfig(dpy, config); |
| if (error_code != EGL_SUCCESS) |
| return EglError(error_code, EGL_FALSE); |
| |
| egl::Display* display = static_cast<egl::Display*>(dpy); |
| if (!display->GetConfigAttrib(config, attribute, value)) |
| return EglError(EGL_BAD_ATTRIBUTE, EGL_FALSE); |
| |
| return EglSuccess(EGL_TRUE); |
| } |
| |
| EGLAPI EGLSurface EGLAPIENTRY |
| eglCreateWindowSurface(EGLDisplay dpy, |
| EGLConfig config, |
| EGLNativeWindowType win, |
| const EGLint* attrib_list) { |
| EGLint error_code = ValidateDisplayConfig(dpy, config); |
| if (error_code != EGL_SUCCESS) |
| return EglError(error_code, EGL_NO_SURFACE); |
| |
| egl::Display* display = static_cast<egl::Display*>(dpy); |
| if (!display->IsValidNativeWindow(win)) |
| return EglError(EGL_BAD_NATIVE_WINDOW, EGL_NO_SURFACE); |
| |
| EGLSurface surface = display->CreateWindowSurface(config, win, attrib_list); |
| if (surface == EGL_NO_SURFACE) |
| return EglError(EGL_BAD_ALLOC, EGL_NO_SURFACE); |
| |
| return EglSuccess(surface); |
| } |
| |
| EGLAPI EGLSurface EGLAPIENTRY |
| eglCreatePbufferSurface(EGLDisplay dpy, |
| EGLConfig config, |
| const EGLint* attrib_list) { |
| EGLint error_code = ValidateDisplayConfig(dpy, config); |
| if (error_code != EGL_SUCCESS) |
| return EglError(error_code, EGL_NO_SURFACE); |
| |
| egl::Display* display = static_cast<egl::Display*>(dpy); |
| int width = 1; |
| int height = 1; |
| if (attrib_list) { |
| for (const int32_t* attr = attrib_list; attr[0] != EGL_NONE; attr += 2) { |
| switch (attr[0]) { |
| case EGL_WIDTH: |
| width = attr[1]; |
| break; |
| case EGL_HEIGHT: |
| height = attr[1]; |
| break; |
| } |
| } |
| } |
| display->SetCreateOffscreen(width, height); |
| |
| EGLSurface surface = display->CreateWindowSurface(config, 0, attrib_list); |
| if (surface == EGL_NO_SURFACE) |
| return EglError(EGL_BAD_ALLOC, EGL_NO_SURFACE); |
| |
| return EglSuccess(surface); |
| } |
| |
| EGLAPI EGLSurface EGLAPIENTRY |
| eglCreatePixmapSurface(EGLDisplay dpy, |
| EGLConfig config, |
| EGLNativePixmapType pixmap, |
| const EGLint* attrib_list) { |
| return EGL_NO_SURFACE; |
| } |
| |
| EGLAPI EGLBoolean EGLAPIENTRY eglDestroySurface(EGLDisplay dpy, |
| EGLSurface surface) { |
| EGLint error_code = ValidateDisplaySurface(dpy, surface); |
| if (error_code != EGL_SUCCESS) |
| return EglError(error_code, EGL_FALSE); |
| |
| egl::Display* display = static_cast<egl::Display*>(dpy); |
| display->DestroySurface(surface); |
| return EglSuccess(EGL_TRUE); |
| } |
| |
| EGLAPI EGLBoolean EGLAPIENTRY eglQuerySurface(EGLDisplay dpy, |
| EGLSurface surface, |
| EGLint attribute, |
| EGLint* value) { |
| return EGL_FALSE; |
| } |
| |
| EGLAPI EGLBoolean EGLAPIENTRY eglBindAPI(EGLenum api) { |
| return EGL_FALSE; |
| } |
| |
| EGLAPI EGLenum EGLAPIENTRY eglQueryAPI() { |
| return EGL_OPENGL_ES_API; |
| } |
| |
| EGLAPI EGLBoolean EGLAPIENTRY eglWaitClient(void) { |
| return EGL_FALSE; |
| } |
| |
| EGLAPI EGLBoolean EGLAPIENTRY eglReleaseThread(void) { |
| return EGL_FALSE; |
| } |
| |
| EGLAPI EGLSurface EGLAPIENTRY |
| eglCreatePbufferFromClientBuffer(EGLDisplay dpy, |
| EGLenum buftype, |
| EGLClientBuffer buffer, |
| EGLConfig config, |
| const EGLint* attrib_list) { |
| return EGL_NO_SURFACE; |
| } |
| |
| EGLAPI EGLBoolean EGLAPIENTRY eglSurfaceAttrib(EGLDisplay dpy, |
| EGLSurface surface, |
| EGLint attribute, |
| EGLint value) { |
| return EGL_FALSE; |
| } |
| |
| EGLAPI EGLBoolean EGLAPIENTRY eglBindTexImage(EGLDisplay dpy, |
| EGLSurface surface, |
| EGLint buffer) { |
| return EGL_FALSE; |
| } |
| |
| EGLAPI EGLBoolean EGLAPIENTRY eglReleaseTexImage(EGLDisplay dpy, |
| EGLSurface surface, |
| EGLint buffer) { |
| return EGL_FALSE; |
| } |
| |
| EGLAPI EGLBoolean EGLAPIENTRY eglSwapInterval(EGLDisplay dpy, EGLint interval) { |
| return EGL_FALSE; |
| } |
| |
| EGLAPI EGLContext EGLAPIENTRY eglCreateContext(EGLDisplay dpy, |
| EGLConfig config, |
| EGLContext share_context, |
| const EGLint* attrib_list) { |
| EGLint error_code = ValidateDisplayConfig(dpy, config); |
| if (error_code != EGL_SUCCESS) |
| return EglError(error_code, EGL_NO_CONTEXT); |
| |
| if (share_context != EGL_NO_CONTEXT) { |
| error_code = ValidateDisplayContext(dpy, share_context); |
| if (error_code != EGL_SUCCESS) |
| return EglError(error_code, EGL_NO_CONTEXT); |
| } |
| |
| egl::Display* display = static_cast<egl::Display*>(dpy); |
| EGLContext context = display->CreateContext( |
| config, share_context, attrib_list); |
| if (context == EGL_NO_CONTEXT) |
| return EglError(EGL_BAD_ALLOC, EGL_NO_CONTEXT); |
| |
| return EglSuccess(context); |
| } |
| |
| EGLAPI EGLBoolean EGLAPIENTRY eglDestroyContext(EGLDisplay dpy, |
| EGLContext ctx) { |
| EGLint error_code = ValidateDisplayContext(dpy, ctx); |
| if (error_code != EGL_SUCCESS) |
| return EglError(error_code, EGL_FALSE); |
| |
| egl::Display* display = static_cast<egl::Display*>(dpy); |
| display->DestroyContext(ctx); |
| return EGL_TRUE; |
| } |
| |
| EGLAPI EGLBoolean EGLAPIENTRY eglMakeCurrent(EGLDisplay dpy, |
| EGLSurface draw, |
| EGLSurface read, |
| EGLContext ctx) { |
| if (ctx != EGL_NO_CONTEXT) { |
| EGLint error_code = ValidateDisplaySurface(dpy, draw); |
| if (error_code != EGL_SUCCESS) |
| return EglError(error_code, EGL_FALSE); |
| error_code = ValidateDisplaySurface(dpy, read); |
| if (error_code != EGL_SUCCESS) |
| return EglError(error_code, EGL_FALSE); |
| error_code = ValidateDisplayContext(dpy, ctx); |
| if (error_code != EGL_SUCCESS) |
| return EglError(error_code, EGL_FALSE); |
| } |
| |
| egl::Display* display = static_cast<egl::Display*>(dpy); |
| if (!display->MakeCurrent(draw, read, ctx)) |
| return EglError(EGL_CONTEXT_LOST, EGL_FALSE); |
| |
| #if REGAL_STATIC_EGL |
| RegalMakeCurrent(ctx); |
| #endif |
| |
| return EGL_TRUE; |
| } |
| |
| EGLAPI EGLContext EGLAPIENTRY eglGetCurrentContext() { |
| return EGL_NO_CONTEXT; |
| } |
| |
| EGLAPI EGLSurface EGLAPIENTRY eglGetCurrentSurface(EGLint readdraw) { |
| return EGL_NO_SURFACE; |
| } |
| |
| EGLAPI EGLDisplay EGLAPIENTRY eglGetCurrentDisplay() { |
| return EGL_NO_DISPLAY; |
| } |
| |
| EGLAPI EGLBoolean EGLAPIENTRY eglQueryContext(EGLDisplay dpy, |
| EGLContext ctx, |
| EGLint attribute, |
| EGLint* value) { |
| return EGL_FALSE; |
| } |
| |
| EGLAPI EGLBoolean EGLAPIENTRY eglWaitGL() { |
| return EGL_FALSE; |
| } |
| |
| EGLAPI EGLBoolean EGLAPIENTRY eglWaitNative(EGLint engine) { |
| return EGL_FALSE; |
| } |
| |
| EGLAPI EGLBoolean EGLAPIENTRY eglSwapBuffers(EGLDisplay dpy, |
| EGLSurface surface) { |
| EGLint error_code = ValidateDisplaySurface(dpy, surface); |
| if (error_code != EGL_SUCCESS) |
| return EglError(error_code, EGL_FALSE); |
| |
| egl::Display* display = static_cast<egl::Display*>(dpy); |
| display->SwapBuffers(surface); |
| return EglSuccess(EGL_TRUE); |
| } |
| |
| EGLAPI EGLBoolean EGLAPIENTRY eglCopyBuffers(EGLDisplay dpy, |
| EGLSurface surface, |
| EGLNativePixmapType target) { |
| return EGL_FALSE; |
| } |
| |
| /* Now, define eglGetProcAddress using the generic function ptr. type */ |
| EGLAPI __eglMustCastToProperFunctionPointerType EGLAPIENTRY |
| eglGetProcAddress(const char* procname) { |
| return reinterpret_cast<__eglMustCastToProperFunctionPointerType>( |
| gles2::GetGLFunctionPointer(procname)); |
| } |
| } // extern "C" |
