--- /dev/null
+//========================================================================
+// GLFW 3.4 EGL - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2019 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+// claim that you wrote the original software. If you use this software
+// in a product, an acknowledgment in the product documentation would
+// be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+// be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+// distribution.
+//
+//========================================================================
+// Please use C89 style variable declarations in this file because VS 2010
+//========================================================================
+
+#include "internal.h"
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <assert.h>
+
+
+// Return a description of the specified EGL error
+//
+static const char* getEGLErrorString(EGLint error)
+{
+ switch (error)
+ {
+ case EGL_SUCCESS:
+ return "Success";
+ case EGL_NOT_INITIALIZED:
+ return "EGL is not or could not be initialized";
+ case EGL_BAD_ACCESS:
+ return "EGL cannot access a requested resource";
+ case EGL_BAD_ALLOC:
+ return "EGL failed to allocate resources for the requested operation";
+ case EGL_BAD_ATTRIBUTE:
+ return "An unrecognized attribute or attribute value was passed in the attribute list";
+ case EGL_BAD_CONTEXT:
+ return "An EGLContext argument does not name a valid EGL rendering context";
+ case EGL_BAD_CONFIG:
+ return "An EGLConfig argument does not name a valid EGL frame buffer configuration";
+ case EGL_BAD_CURRENT_SURFACE:
+ return "The current surface of the calling thread is a window, pixel buffer or pixmap that is no longer valid";
+ case EGL_BAD_DISPLAY:
+ return "An EGLDisplay argument does not name a valid EGL display connection";
+ case EGL_BAD_SURFACE:
+ return "An EGLSurface argument does not name a valid surface configured for GL rendering";
+ case EGL_BAD_MATCH:
+ return "Arguments are inconsistent";
+ case EGL_BAD_PARAMETER:
+ return "One or more argument values are invalid";
+ case EGL_BAD_NATIVE_PIXMAP:
+ return "A NativePixmapType argument does not refer to a valid native pixmap";
+ case EGL_BAD_NATIVE_WINDOW:
+ return "A NativeWindowType argument does not refer to a valid native window";
+ case EGL_CONTEXT_LOST:
+ return "The application must destroy all contexts and reinitialise";
+ default:
+ return "ERROR: UNKNOWN EGL ERROR";
+ }
+}
+
+// Returns the specified attribute of the specified EGLConfig
+//
+static int getEGLConfigAttrib(EGLConfig config, int attrib)
+{
+ int value;
+ eglGetConfigAttrib(_glfw.egl.display, config, attrib, &value);
+ return value;
+}
+
+// Return the EGLConfig most closely matching the specified hints
+//
+static GLFWbool chooseEGLConfig(const _GLFWctxconfig* ctxconfig,
+ const _GLFWfbconfig* desired,
+ EGLConfig* result)
+{
+ EGLConfig* nativeConfigs;
+ _GLFWfbconfig* usableConfigs;
+ const _GLFWfbconfig* closest;
+ int i, nativeCount, usableCount;
+
+ eglGetConfigs(_glfw.egl.display, NULL, 0, &nativeCount);
+ if (!nativeCount)
+ {
+ _glfwInputError(GLFW_API_UNAVAILABLE, "EGL: No EGLConfigs returned");
+ return GLFW_FALSE;
+ }
+
+ nativeConfigs = calloc(nativeCount, sizeof(EGLConfig));
+ eglGetConfigs(_glfw.egl.display, nativeConfigs, nativeCount, &nativeCount);
+
+ usableConfigs = calloc(nativeCount, sizeof(_GLFWfbconfig));
+ usableCount = 0;
+
+ for (i = 0; i < nativeCount; i++)
+ {
+ const EGLConfig n = nativeConfigs[i];
+ _GLFWfbconfig* u = usableConfigs + usableCount;
+
+ // Only consider RGB(A) EGLConfigs
+ if (getEGLConfigAttrib(n, EGL_COLOR_BUFFER_TYPE) != EGL_RGB_BUFFER)
+ continue;
+
+ // Only consider window EGLConfigs
+ if (!(getEGLConfigAttrib(n, EGL_SURFACE_TYPE) & EGL_WINDOW_BIT))
+ continue;
+
+#if defined(_GLFW_X11)
+ {
+ XVisualInfo vi = {0};
+
+ // Only consider EGLConfigs with associated Visuals
+ vi.visualid = getEGLConfigAttrib(n, EGL_NATIVE_VISUAL_ID);
+ if (!vi.visualid)
+ continue;
+
+ if (desired->transparent)
+ {
+ int count;
+ XVisualInfo* vis =
+ XGetVisualInfo(_glfw.x11.display, VisualIDMask, &vi, &count);
+ if (vis)
+ {
+ u->transparent = _glfwIsVisualTransparentX11(vis[0].visual);
+ XFree(vis);
+ }
+ }
+ }
+#endif // _GLFW_X11
+
+ if (ctxconfig->client == GLFW_OPENGL_ES_API)
+ {
+ if (ctxconfig->major == 1)
+ {
+ if (!(getEGLConfigAttrib(n, EGL_RENDERABLE_TYPE) & EGL_OPENGL_ES_BIT))
+ continue;
+ }
+ else
+ {
+ if (!(getEGLConfigAttrib(n, EGL_RENDERABLE_TYPE) & EGL_OPENGL_ES2_BIT))
+ continue;
+ }
+ }
+ else if (ctxconfig->client == GLFW_OPENGL_API)
+ {
+ if (!(getEGLConfigAttrib(n, EGL_RENDERABLE_TYPE) & EGL_OPENGL_BIT))
+ continue;
+ }
+
+ u->redBits = getEGLConfigAttrib(n, EGL_RED_SIZE);
+ u->greenBits = getEGLConfigAttrib(n, EGL_GREEN_SIZE);
+ u->blueBits = getEGLConfigAttrib(n, EGL_BLUE_SIZE);
+
+ u->alphaBits = getEGLConfigAttrib(n, EGL_ALPHA_SIZE);
+ u->depthBits = getEGLConfigAttrib(n, EGL_DEPTH_SIZE);
+ u->stencilBits = getEGLConfigAttrib(n, EGL_STENCIL_SIZE);
+
+ u->samples = getEGLConfigAttrib(n, EGL_SAMPLES);
+ u->doublebuffer = GLFW_TRUE;
+
+ u->handle = (uintptr_t) n;
+ usableCount++;
+ }
+
+ closest = _glfwChooseFBConfig(desired, usableConfigs, usableCount);
+ if (closest)
+ *result = (EGLConfig) closest->handle;
+
+ free(nativeConfigs);
+ free(usableConfigs);
+
+ return closest != NULL;
+}
+
+static void makeContextCurrentEGL(_GLFWwindow* window)
+{
+ if (window)
+ {
+ if (!eglMakeCurrent(_glfw.egl.display,
+ window->context.egl.surface,
+ window->context.egl.surface,
+ window->context.egl.handle))
+ {
+ _glfwInputError(GLFW_PLATFORM_ERROR,
+ "EGL: Failed to make context current: %s",
+ getEGLErrorString(eglGetError()));
+ return;
+ }
+ }
+ else
+ {
+ if (!eglMakeCurrent(_glfw.egl.display,
+ EGL_NO_SURFACE,
+ EGL_NO_SURFACE,
+ EGL_NO_CONTEXT))
+ {
+ _glfwInputError(GLFW_PLATFORM_ERROR,
+ "EGL: Failed to clear current context: %s",
+ getEGLErrorString(eglGetError()));
+ return;
+ }
+ }
+
+ _glfwPlatformSetTls(&_glfw.contextSlot, window);
+}
+
+static void swapBuffersEGL(_GLFWwindow* window)
+{
+ if (window != _glfwPlatformGetTls(&_glfw.contextSlot))
+ {
+ _glfwInputError(GLFW_PLATFORM_ERROR,
+ "EGL: The context must be current on the calling thread when swapping buffers");
+ return;
+ }
+
+ eglSwapBuffers(_glfw.egl.display, window->context.egl.surface);
+}
+
+static void swapIntervalEGL(int interval)
+{
+ eglSwapInterval(_glfw.egl.display, interval);
+}
+
+static int extensionSupportedEGL(const char* extension)
+{
+ const char* extensions = eglQueryString(_glfw.egl.display, EGL_EXTENSIONS);
+ if (extensions)
+ {
+ if (_glfwStringInExtensionString(extension, extensions))
+ return GLFW_TRUE;
+ }
+
+ return GLFW_FALSE;
+}
+
+static GLFWglproc getProcAddressEGL(const char* procname)
+{
+ _GLFWwindow* window = _glfwPlatformGetTls(&_glfw.contextSlot);
+
+ if (window->context.egl.client)
+ {
+ GLFWglproc proc = (GLFWglproc) _glfw_dlsym(window->context.egl.client,
+ procname);
+ if (proc)
+ return proc;
+ }
+
+ return eglGetProcAddress(procname);
+}
+
+static void destroyContextEGL(_GLFWwindow* window)
+{
+#if defined(_GLFW_X11)
+ // NOTE: Do not unload libGL.so.1 while the X11 display is still open,
+ // as it will make XCloseDisplay segfault
+ if (window->context.client != GLFW_OPENGL_API)
+#endif // _GLFW_X11
+ {
+ if (window->context.egl.client)
+ {
+ _glfw_dlclose(window->context.egl.client);
+ window->context.egl.client = NULL;
+ }
+ }
+
+ if (window->context.egl.surface)
+ {
+ eglDestroySurface(_glfw.egl.display, window->context.egl.surface);
+ window->context.egl.surface = EGL_NO_SURFACE;
+ }
+
+ if (window->context.egl.handle)
+ {
+ eglDestroyContext(_glfw.egl.display, window->context.egl.handle);
+ window->context.egl.handle = EGL_NO_CONTEXT;
+ }
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+////// GLFW internal API //////
+//////////////////////////////////////////////////////////////////////////
+
+// Initialize EGL
+//
+GLFWbool _glfwInitEGL(void)
+{
+ int i;
+ EGLint* attribs = NULL;
+ const char* extensions;
+ const char* sonames[] =
+ {
+#if defined(_GLFW_EGL_LIBRARY)
+ _GLFW_EGL_LIBRARY,
+#elif defined(_GLFW_WIN32)
+ "libEGL.dll",
+ "EGL.dll",
+#elif defined(_GLFW_COCOA)
+ "libEGL.dylib",
+#elif defined(__CYGWIN__)
+ "libEGL-1.so",
+#else
+ "libEGL.so.1",
+#endif
+ NULL
+ };
+
+ if (_glfw.egl.handle)
+ return GLFW_TRUE;
+
+ for (i = 0; sonames[i]; i++)
+ {
+ _glfw.egl.handle = _glfw_dlopen(sonames[i]);
+ if (_glfw.egl.handle)
+ break;
+ }
+
+ if (!_glfw.egl.handle)
+ {
+ _glfwInputError(GLFW_API_UNAVAILABLE, "EGL: Library not found");
+ return GLFW_FALSE;
+ }
+
+ _glfw.egl.prefix = (strncmp(sonames[i], "lib", 3) == 0);
+
+ _glfw.egl.GetConfigAttrib = (PFN_eglGetConfigAttrib)
+ _glfw_dlsym(_glfw.egl.handle, "eglGetConfigAttrib");
+ _glfw.egl.GetConfigs = (PFN_eglGetConfigs)
+ _glfw_dlsym(_glfw.egl.handle, "eglGetConfigs");
+ _glfw.egl.GetDisplay = (PFN_eglGetDisplay)
+ _glfw_dlsym(_glfw.egl.handle, "eglGetDisplay");
+ _glfw.egl.GetError = (PFN_eglGetError)
+ _glfw_dlsym(_glfw.egl.handle, "eglGetError");
+ _glfw.egl.Initialize = (PFN_eglInitialize)
+ _glfw_dlsym(_glfw.egl.handle, "eglInitialize");
+ _glfw.egl.Terminate = (PFN_eglTerminate)
+ _glfw_dlsym(_glfw.egl.handle, "eglTerminate");
+ _glfw.egl.BindAPI = (PFN_eglBindAPI)
+ _glfw_dlsym(_glfw.egl.handle, "eglBindAPI");
+ _glfw.egl.CreateContext = (PFN_eglCreateContext)
+ _glfw_dlsym(_glfw.egl.handle, "eglCreateContext");
+ _glfw.egl.DestroySurface = (PFN_eglDestroySurface)
+ _glfw_dlsym(_glfw.egl.handle, "eglDestroySurface");
+ _glfw.egl.DestroyContext = (PFN_eglDestroyContext)
+ _glfw_dlsym(_glfw.egl.handle, "eglDestroyContext");
+ _glfw.egl.CreateWindowSurface = (PFN_eglCreateWindowSurface)
+ _glfw_dlsym(_glfw.egl.handle, "eglCreateWindowSurface");
+ _glfw.egl.MakeCurrent = (PFN_eglMakeCurrent)
+ _glfw_dlsym(_glfw.egl.handle, "eglMakeCurrent");
+ _glfw.egl.SwapBuffers = (PFN_eglSwapBuffers)
+ _glfw_dlsym(_glfw.egl.handle, "eglSwapBuffers");
+ _glfw.egl.SwapInterval = (PFN_eglSwapInterval)
+ _glfw_dlsym(_glfw.egl.handle, "eglSwapInterval");
+ _glfw.egl.QueryString = (PFN_eglQueryString)
+ _glfw_dlsym(_glfw.egl.handle, "eglQueryString");
+ _glfw.egl.GetProcAddress = (PFN_eglGetProcAddress)
+ _glfw_dlsym(_glfw.egl.handle, "eglGetProcAddress");
+
+ if (!_glfw.egl.GetConfigAttrib ||
+ !_glfw.egl.GetConfigs ||
+ !_glfw.egl.GetDisplay ||
+ !_glfw.egl.GetError ||
+ !_glfw.egl.Initialize ||
+ !_glfw.egl.Terminate ||
+ !_glfw.egl.BindAPI ||
+ !_glfw.egl.CreateContext ||
+ !_glfw.egl.DestroySurface ||
+ !_glfw.egl.DestroyContext ||
+ !_glfw.egl.CreateWindowSurface ||
+ !_glfw.egl.MakeCurrent ||
+ !_glfw.egl.SwapBuffers ||
+ !_glfw.egl.SwapInterval ||
+ !_glfw.egl.QueryString ||
+ !_glfw.egl.GetProcAddress)
+ {
+ _glfwInputError(GLFW_PLATFORM_ERROR,
+ "EGL: Failed to load required entry points");
+
+ _glfwTerminateEGL();
+ return GLFW_FALSE;
+ }
+
+ extensions = eglQueryString(EGL_NO_DISPLAY, EGL_EXTENSIONS);
+ if (extensions && eglGetError() == EGL_SUCCESS)
+ _glfw.egl.EXT_client_extensions = GLFW_TRUE;
+
+ if (_glfw.egl.EXT_client_extensions)
+ {
+ _glfw.egl.EXT_platform_base =
+ _glfwStringInExtensionString("EGL_EXT_platform_base", extensions);
+ _glfw.egl.EXT_platform_x11 =
+ _glfwStringInExtensionString("EGL_EXT_platform_x11", extensions);
+ _glfw.egl.EXT_platform_wayland =
+ _glfwStringInExtensionString("EGL_EXT_platform_wayland", extensions);
+ _glfw.egl.ANGLE_platform_angle =
+ _glfwStringInExtensionString("EGL_ANGLE_platform_angle", extensions);
+ _glfw.egl.ANGLE_platform_angle_opengl =
+ _glfwStringInExtensionString("EGL_ANGLE_platform_angle_opengl", extensions);
+ _glfw.egl.ANGLE_platform_angle_d3d =
+ _glfwStringInExtensionString("EGL_ANGLE_platform_angle_d3d", extensions);
+ _glfw.egl.ANGLE_platform_angle_vulkan =
+ _glfwStringInExtensionString("EGL_ANGLE_platform_angle_vulkan", extensions);
+ _glfw.egl.ANGLE_platform_angle_metal =
+ _glfwStringInExtensionString("EGL_ANGLE_platform_angle_metal", extensions);
+ }
+
+ if (_glfw.egl.EXT_platform_base)
+ {
+ _glfw.egl.GetPlatformDisplayEXT = (PFNEGLGETPLATFORMDISPLAYEXTPROC)
+ eglGetProcAddress("eglGetPlatformDisplayEXT");
+ _glfw.egl.CreatePlatformWindowSurfaceEXT = (PFNEGLCREATEPLATFORMWINDOWSURFACEEXTPROC)
+ eglGetProcAddress("eglCreatePlatformWindowSurfaceEXT");
+ }
+
+ _glfw.egl.platform = _glfwPlatformGetEGLPlatform(&attribs);
+ if (_glfw.egl.platform)
+ {
+ _glfw.egl.display =
+ eglGetPlatformDisplayEXT(_glfw.egl.platform,
+ _glfwPlatformGetEGLNativeDisplay(),
+ attribs);
+ }
+ else
+ _glfw.egl.display = eglGetDisplay(_glfwPlatformGetEGLNativeDisplay());
+
+ free(attribs);
+
+ if (_glfw.egl.display == EGL_NO_DISPLAY)
+ {
+ _glfwInputError(GLFW_API_UNAVAILABLE,
+ "EGL: Failed to get EGL display: %s",
+ getEGLErrorString(eglGetError()));
+
+ _glfwTerminateEGL();
+ return GLFW_FALSE;
+ }
+
+ if (!eglInitialize(_glfw.egl.display, &_glfw.egl.major, &_glfw.egl.minor))
+ {
+ _glfwInputError(GLFW_API_UNAVAILABLE,
+ "EGL: Failed to initialize EGL: %s",
+ getEGLErrorString(eglGetError()));
+
+ _glfwTerminateEGL();
+ return GLFW_FALSE;
+ }
+
+ _glfw.egl.KHR_create_context =
+ extensionSupportedEGL("EGL_KHR_create_context");
+ _glfw.egl.KHR_create_context_no_error =
+ extensionSupportedEGL("EGL_KHR_create_context_no_error");
+ _glfw.egl.KHR_gl_colorspace =
+ extensionSupportedEGL("EGL_KHR_gl_colorspace");
+ _glfw.egl.KHR_get_all_proc_addresses =
+ extensionSupportedEGL("EGL_KHR_get_all_proc_addresses");
+ _glfw.egl.KHR_context_flush_control =
+ extensionSupportedEGL("EGL_KHR_context_flush_control");
+
+ return GLFW_TRUE;
+}
+
+// Terminate EGL
+//
+void _glfwTerminateEGL(void)
+{
+ if (_glfw.egl.display)
+ {
+ eglTerminate(_glfw.egl.display);
+ _glfw.egl.display = EGL_NO_DISPLAY;
+ }
+
+ if (_glfw.egl.handle)
+ {
+ _glfw_dlclose(_glfw.egl.handle);
+ _glfw.egl.handle = NULL;
+ }
+}
+
+#define setAttrib(a, v) \
+{ \
+ assert(((size_t) index + 1) < sizeof(attribs) / sizeof(attribs[0])); \
+ attribs[index++] = a; \
+ attribs[index++] = v; \
+}
+
+// Create the OpenGL or OpenGL ES context
+//
+GLFWbool _glfwCreateContextEGL(_GLFWwindow* window,
+ const _GLFWctxconfig* ctxconfig,
+ const _GLFWfbconfig* fbconfig)
+{
+ EGLint attribs[40];
+ EGLConfig config;
+ EGLContext share = NULL;
+ EGLNativeWindowType native;
+ int index = 0;
+
+ if (!_glfw.egl.display)
+ {
+ _glfwInputError(GLFW_API_UNAVAILABLE, "EGL: API not available");
+ return GLFW_FALSE;
+ }
+
+ if (ctxconfig->share)
+ share = ctxconfig->share->context.egl.handle;
+
+ if (!chooseEGLConfig(ctxconfig, fbconfig, &config))
+ {
+ _glfwInputError(GLFW_FORMAT_UNAVAILABLE,
+ "EGL: Failed to find a suitable EGLConfig");
+ return GLFW_FALSE;
+ }
+
+ if (ctxconfig->client == GLFW_OPENGL_ES_API)
+ {
+ if (!eglBindAPI(EGL_OPENGL_ES_API))
+ {
+ _glfwInputError(GLFW_API_UNAVAILABLE,
+ "EGL: Failed to bind OpenGL ES: %s",
+ getEGLErrorString(eglGetError()));
+ return GLFW_FALSE;
+ }
+ }
+ else
+ {
+ if (!eglBindAPI(EGL_OPENGL_API))
+ {
+ _glfwInputError(GLFW_API_UNAVAILABLE,
+ "EGL: Failed to bind OpenGL: %s",
+ getEGLErrorString(eglGetError()));
+ return GLFW_FALSE;
+ }
+ }
+
+ if (_glfw.egl.KHR_create_context)
+ {
+ int mask = 0, flags = 0;
+
+ if (ctxconfig->client == GLFW_OPENGL_API)
+ {
+ if (ctxconfig->forward)
+ flags |= EGL_CONTEXT_OPENGL_FORWARD_COMPATIBLE_BIT_KHR;
+
+ if (ctxconfig->profile == GLFW_OPENGL_CORE_PROFILE)
+ mask |= EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR;
+ else if (ctxconfig->profile == GLFW_OPENGL_COMPAT_PROFILE)
+ mask |= EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR;
+ }
+
+ if (ctxconfig->debug)
+ flags |= EGL_CONTEXT_OPENGL_DEBUG_BIT_KHR;
+
+ if (ctxconfig->robustness)
+ {
+ if (ctxconfig->robustness == GLFW_NO_RESET_NOTIFICATION)
+ {
+ setAttrib(EGL_CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY_KHR,
+ EGL_NO_RESET_NOTIFICATION_KHR);
+ }
+ else if (ctxconfig->robustness == GLFW_LOSE_CONTEXT_ON_RESET)
+ {
+ setAttrib(EGL_CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY_KHR,
+ EGL_LOSE_CONTEXT_ON_RESET_KHR);
+ }
+
+ flags |= EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR;
+ }
+
+ if (ctxconfig->noerror)
+ {
+ if (_glfw.egl.KHR_create_context_no_error)
+ setAttrib(EGL_CONTEXT_OPENGL_NO_ERROR_KHR, GLFW_TRUE);
+ }
+
+ if (ctxconfig->major != 1 || ctxconfig->minor != 0)
+ {
+ setAttrib(EGL_CONTEXT_MAJOR_VERSION_KHR, ctxconfig->major);
+ setAttrib(EGL_CONTEXT_MINOR_VERSION_KHR, ctxconfig->minor);
+ }
+
+ if (mask)
+ setAttrib(EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR, mask);
+
+ if (flags)
+ setAttrib(EGL_CONTEXT_FLAGS_KHR, flags);
+ }
+ else
+ {
+ if (ctxconfig->client == GLFW_OPENGL_ES_API)
+ setAttrib(EGL_CONTEXT_CLIENT_VERSION, ctxconfig->major);
+ }
+
+ if (_glfw.egl.KHR_context_flush_control)
+ {
+ if (ctxconfig->release == GLFW_RELEASE_BEHAVIOR_NONE)
+ {
+ setAttrib(EGL_CONTEXT_RELEASE_BEHAVIOR_KHR,
+ EGL_CONTEXT_RELEASE_BEHAVIOR_NONE_KHR);
+ }
+ else if (ctxconfig->release == GLFW_RELEASE_BEHAVIOR_FLUSH)
+ {
+ setAttrib(EGL_CONTEXT_RELEASE_BEHAVIOR_KHR,
+ EGL_CONTEXT_RELEASE_BEHAVIOR_FLUSH_KHR);
+ }
+ }
+
+ setAttrib(EGL_NONE, EGL_NONE);
+
+ window->context.egl.handle = eglCreateContext(_glfw.egl.display,
+ config, share, attribs);
+
+ if (window->context.egl.handle == EGL_NO_CONTEXT)
+ {
+ _glfwInputError(GLFW_VERSION_UNAVAILABLE,
+ "EGL: Failed to create context: %s",
+ getEGLErrorString(eglGetError()));
+ return GLFW_FALSE;
+ }
+
+ // Set up attributes for surface creation
+ index = 0;
+
+ if (fbconfig->sRGB)
+ {
+ if (_glfw.egl.KHR_gl_colorspace)
+ setAttrib(EGL_GL_COLORSPACE_KHR, EGL_GL_COLORSPACE_SRGB_KHR);
+ }
+
+ setAttrib(EGL_NONE, EGL_NONE);
+
+ native = _glfwPlatformGetEGLNativeWindow(window);
+ // HACK: ANGLE does not implement eglCreatePlatformWindowSurfaceEXT
+ // despite reporting EGL_EXT_platform_base
+ if (_glfw.egl.platform && _glfw.egl.platform != EGL_PLATFORM_ANGLE_ANGLE)
+ {
+ window->context.egl.surface =
+ eglCreatePlatformWindowSurfaceEXT(_glfw.egl.display, config, native, attribs);
+ }
+ else
+ {
+ window->context.egl.surface =
+ eglCreateWindowSurface(_glfw.egl.display, config, native, attribs);
+ }
+
+ if (window->context.egl.surface == EGL_NO_SURFACE)
+ {
+ _glfwInputError(GLFW_PLATFORM_ERROR,
+ "EGL: Failed to create window surface: %s",
+ getEGLErrorString(eglGetError()));
+ return GLFW_FALSE;
+ }
+
+ window->context.egl.config = config;
+
+ // Load the appropriate client library
+ if (!_glfw.egl.KHR_get_all_proc_addresses)
+ {
+ int i;
+ const char** sonames;
+ const char* es1sonames[] =
+ {
+#if defined(_GLFW_GLESV1_LIBRARY)
+ _GLFW_GLESV1_LIBRARY,
+#elif defined(_GLFW_WIN32)
+ "GLESv1_CM.dll",
+ "libGLES_CM.dll",
+#elif defined(_GLFW_COCOA)
+ "libGLESv1_CM.dylib",
+#else
+ "libGLESv1_CM.so.1",
+ "libGLES_CM.so.1",
+#endif
+ NULL
+ };
+ const char* es2sonames[] =
+ {
+#if defined(_GLFW_GLESV2_LIBRARY)
+ _GLFW_GLESV2_LIBRARY,
+#elif defined(_GLFW_WIN32)
+ "GLESv2.dll",
+ "libGLESv2.dll",
+#elif defined(_GLFW_COCOA)
+ "libGLESv2.dylib",
+#elif defined(__CYGWIN__)
+ "libGLESv2-2.so",
+#else
+ "libGLESv2.so.2",
+#endif
+ NULL
+ };
+ const char* glsonames[] =
+ {
+#if defined(_GLFW_OPENGL_LIBRARY)
+ _GLFW_OPENGL_LIBRARY,
+#elif defined(_GLFW_WIN32)
+#elif defined(_GLFW_COCOA)
+#else
+ "libGL.so.1",
+#endif
+ NULL
+ };
+
+ if (ctxconfig->client == GLFW_OPENGL_ES_API)
+ {
+ if (ctxconfig->major == 1)
+ sonames = es1sonames;
+ else
+ sonames = es2sonames;
+ }
+ else
+ sonames = glsonames;
+
+ for (i = 0; sonames[i]; i++)
+ {
+ // HACK: Match presence of lib prefix to increase chance of finding
+ // a matching pair in the jungle that is Win32 EGL/GLES
+ if (_glfw.egl.prefix != (strncmp(sonames[i], "lib", 3) == 0))
+ continue;
+
+ window->context.egl.client = _glfw_dlopen(sonames[i]);
+ if (window->context.egl.client)
+ break;
+ }
+
+ if (!window->context.egl.client)
+ {
+ _glfwInputError(GLFW_API_UNAVAILABLE,
+ "EGL: Failed to load client library");
+ return GLFW_FALSE;
+ }
+ }
+
+ window->context.makeCurrent = makeContextCurrentEGL;
+ window->context.swapBuffers = swapBuffersEGL;
+ window->context.swapInterval = swapIntervalEGL;
+ window->context.extensionSupported = extensionSupportedEGL;
+ window->context.getProcAddress = getProcAddressEGL;
+ window->context.destroy = destroyContextEGL;
+
+ return GLFW_TRUE;
+}
+
+#undef setAttrib
+
+// Returns the Visual and depth of the chosen EGLConfig
+//
+#if defined(_GLFW_X11)
+GLFWbool _glfwChooseVisualEGL(const _GLFWwndconfig* wndconfig,
+ const _GLFWctxconfig* ctxconfig,
+ const _GLFWfbconfig* fbconfig,
+ Visual** visual, int* depth)
+{
+ XVisualInfo* result;
+ XVisualInfo desired;
+ EGLConfig native;
+ EGLint visualID = 0, count = 0;
+ const long vimask = VisualScreenMask | VisualIDMask;
+
+ if (!chooseEGLConfig(ctxconfig, fbconfig, &native))
+ {
+ _glfwInputError(GLFW_FORMAT_UNAVAILABLE,
+ "EGL: Failed to find a suitable EGLConfig");
+ return GLFW_FALSE;
+ }
+
+ eglGetConfigAttrib(_glfw.egl.display, native,
+ EGL_NATIVE_VISUAL_ID, &visualID);
+
+ desired.screen = _glfw.x11.screen;
+ desired.visualid = visualID;
+
+ result = XGetVisualInfo(_glfw.x11.display, vimask, &desired, &count);
+ if (!result)
+ {
+ _glfwInputError(GLFW_PLATFORM_ERROR,
+ "EGL: Failed to retrieve Visual for EGLConfig");
+ return GLFW_FALSE;
+ }
+
+ *visual = result->visual;
+ *depth = result->depth;
+
+ XFree(result);
+ return GLFW_TRUE;
+}
+#endif // _GLFW_X11
+
+
+//////////////////////////////////////////////////////////////////////////
+////// GLFW native API //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWAPI EGLDisplay glfwGetEGLDisplay(void)
+{
+ _GLFW_REQUIRE_INIT_OR_RETURN(EGL_NO_DISPLAY);
+ return _glfw.egl.display;
+}
+
+GLFWAPI EGLContext glfwGetEGLContext(GLFWwindow* handle)
+{
+ _GLFWwindow* window = (_GLFWwindow*) handle;
+ _GLFW_REQUIRE_INIT_OR_RETURN(EGL_NO_CONTEXT);
+
+ if (window->context.client == GLFW_NO_API)
+ {
+ _glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
+ return EGL_NO_CONTEXT;
+ }
+
+ return window->context.egl.handle;
+}
+
+GLFWAPI EGLSurface glfwGetEGLSurface(GLFWwindow* handle)
+{
+ _GLFWwindow* window = (_GLFWwindow*) handle;
+ _GLFW_REQUIRE_INIT_OR_RETURN(EGL_NO_SURFACE);
+
+ if (window->context.client == GLFW_NO_API)
+ {
+ _glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
+ return EGL_NO_SURFACE;
+ }
+
+ return window->context.egl.surface;
+}
+
projects / pistorm / blobdiff