eglewInit takes EGLDisplay parameter, will do eglIntialize internally, for now

auto/src/eglew_head.h

@@ -27,6 +27,12 @@
 #include <KHR/khrplatform.h>
 #include <EGL/eglplatform.h>
 
+#include <GL/glew.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 typedef int32_t EGLint;
 
 typedef unsigned int EGLBoolean;
@@ -79,8 +85,3 @@ struct EGLClientPixmapHI;
 #define EGL_DEFAULT_DISPLAY               ((EGLNativeDisplayType)0)
 
 EGLAPI __eglMustCastToProperFunctionPointerType EGLAPIENTRY eglGetProcAddress (const char *procname);
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-

auto/src/eglew_tail.h

@@ -1,6 +1,6 @@
 /* ------------------------------------------------------------------------ */
 
-GLEWAPI GLenum GLEWAPIENTRY eglewInit ();
+GLEWAPI GLenum GLEWAPIENTRY eglewInit (EGLDisplay display);
 GLEWAPI GLboolean GLEWAPIENTRY eglewIsSupported (const char *name);
 
 #define EGLEW_GET_VAR(x) (*(const GLboolean*)&x)

auto/src/glew_init_egl.c

@@ -1,4 +1,4 @@
-/* ------------------------------------------------------------------------ */
+  /* ------------------------------------------------------------------------ */
 
 GLboolean eglewGetExtension (const char* name)
 {
@@ -11,32 +11,23 @@ GLboolean eglewGetExtension (const char* name)
   return _glewSearchExtension(name, start, end);
 }
 
-GLenum eglewInit ()
+GLenum eglewInit (EGLDisplay display)
 {
-  GLuint dot;
+  EGLint major, minor;
-  GLint major, minor;
-  const GLubyte* version;
   const GLubyte* extStart;
   const GLubyte* extEnd;
-  PFNEGLGETDISPLAYPROC getDisplay = NULL;
+  PFNEGLINITIALIZEPROC initialize = NULL;
   PFNEGLQUERYSTRINGPROC queryString = NULL;
 
   /* Load necessary entry points */
-  getDisplay = (PFNEGLGETDISPLAYPROC) glewGetProcAddress("eglGetDisplay");
+  initialize = (PFNEGLINITIALIZEPROC)   glewGetProcAddress("eglInitialize");
   queryString = (PFNEGLQUERYSTRINGPROC) glewGetProcAddress("eglQueryString");
-  if (!getDisplay || !queryString)
+  if (!initialize || !queryString)
     return 1;
 
   /* query EGK version */
-  major = 0;
+  if (initialize(display, &major, &minor) != EGL_TRUE)
-  minor = 0;
+    return 1;
-  version = (const GLubyte*) queryString(getDisplay(EGL_DEFAULT_DISPLAY), EGL_VERSION);
-  dot = _glewStrCLen(version, '.');
-  if (dot != 0)
-  {
-    major = version[dot-1]-'0';
-    minor = version[dot+1]-'0';
-  }
 
   EGLEW_VERSION_1_5   = ( major > 1 )                || ( major == 1 && minor >= 5 ) ? GL_TRUE : GL_FALSE;
   EGLEW_VERSION_1_4   = EGLEW_VERSION_1_5 == GL_TRUE || ( major == 1 && minor >= 4 ) ? GL_TRUE : GL_FALSE;
@@ -46,7 +37,7 @@ GLenum eglewInit ()
   EGLEW_VERSION_1_0   = EGLEW_VERSION_1_1 == GL_TRUE || ( major == 1 && minor >= 0 ) ? GL_TRUE : GL_FALSE;
 
   /* query EGL extension string */
-  extStart = (const GLubyte*) queryString(getDisplay(EGL_DEFAULT_DISPLAY), EGL_EXTENSIONS);
+  extStart = (const GLubyte*) queryString(display, EGL_EXTENSIONS);
   if (extStart == 0)
     extStart = (const GLubyte *)"";
   extEnd = extStart + _glewStrLen(extStart);

auto/src/glew_init_tail.c

@@ -35,10 +35,14 @@ GLboolean glewExperimental = GL_FALSE;
 GLenum GLEWAPIENTRY glewInit (void)
 {
   GLenum r;
+#if defined(GLEW_EGL)
+  PFNEGLGETCURRENTDISPLAYPROC getCurrentDisplay = NULL;
+#endif
   r = glewContextInit();
   if ( r != 0 ) return r;
 #if defined(GLEW_EGL)
-  return eglewInit();
+  getCurrentDisplay = (PFNEGLGETCURRENTDISPLAYPROC) glewGetProcAddress("eglGetCurrentDisplay");
+  return eglewInit(getCurrentDisplay());
 #elif defined(GLEW_OSMESA) || defined(__ANDROID__) || defined(__native_client__) || defined(__HAIKU__)
   return r;
 #elif defined(_WIN32)

auto/src/glewinfo_tail.c

@@ -159,18 +159,34 @@ EGLContext  ctx;
 
 GLboolean glewCreateContext (struct createParams *params)
 {
+  EGLDeviceEXT devices[1];
+  EGLint numDevices;
   EGLSurface  surface;
   EGLint majorVersion, minorVersion;
-  const EGLint attr[] = {
+  static const EGLint configAttribs[] = {
-      EGL_BUFFER_SIZE, 32,
+        EGL_RED_SIZE, 1,
-      EGL_COLOR_BUFFER_TYPE, EGL_RGB_BUFFER,
+        EGL_GREEN_SIZE, 1,
-      EGL_CONFORMANT, EGL_OPENGL_BIT,
+        EGL_BLUE_SIZE, 1,
+        EGL_SURFACE_TYPE, EGL_PBUFFER_BIT,
         EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
         EGL_NONE
    };
+  static const EGLint contextAttribs[] = {
+    EGL_CONTEXT_CLIENT_VERSION, 2,
+    EGL_NONE
+  };
+  static const EGLint pBufferAttribs[] = {
+    EGL_WIDTH,  128,
+    EGL_HEIGHT, 128,
+    EGL_NONE
+  };
   EGLConfig config;
   EGLint numConfig;
+  EGLint error;
 
+  PFNEGLQUERYDEVICESEXTPROC       queryDevices = NULL;
+  PFNEGLGETPLATFORMDISPLAYEXTPROC getPlatformDisplay = NULL;
+  PFNEGLGETERRORPROC              getError = NULL;
   PFNEGLGETDISPLAYPROC            getDisplay = NULL;
   PFNEGLINITIALIZEPROC            initialize = NULL;
   PFNEGLBINDAPIPROC               bindAPI    = NULL;
@@ -178,28 +194,75 @@ GLboolean glewCreateContext (struct createParams *params)
   PFNEGLCREATEWINDOWSURFACEPROC   createWindowSurface = NULL;
   PFNEGLCREATECONTEXTPROC         createContext = NULL;
   PFNEGLMAKECURRENTPROC           makeCurrent = NULL;
+  PFNEGLCREATEPBUFFERSURFACEPROC  createPbufferSurface = NULL;
 
   /* Load necessary entry points */
+  queryDevices         = (PFNEGLQUERYDEVICESEXTPROC)       eglGetProcAddress("eglQueryDevicesEXT");
+  getPlatformDisplay   = (PFNEGLGETPLATFORMDISPLAYEXTPROC) eglGetProcAddress("eglGetPlatformDisplayEXT");
+  getError             = (PFNEGLGETERRORPROC)              eglGetProcAddress("eglGetError");
   getDisplay           = (PFNEGLGETDISPLAYPROC)            eglGetProcAddress("eglGetDisplay");
   initialize           = (PFNEGLINITIALIZEPROC)            eglGetProcAddress("eglInitialize");
   bindAPI              = (PFNEGLBINDAPIPROC)               eglGetProcAddress("eglBindAPI");
   chooseConfig         = (PFNEGLCHOOSECONFIGPROC)          eglGetProcAddress("eglChooseConfig");
   createWindowSurface  = (PFNEGLCREATEWINDOWSURFACEPROC)   eglGetProcAddress("eglCreateWindowSurface");
+  createPbufferSurface = (PFNEGLCREATEPBUFFERSURFACEPROC)  eglGetProcAddress("eglCreatePbufferSurface");
   createContext        = (PFNEGLCREATECONTEXTPROC)         eglGetProcAddress("eglCreateContext");
   makeCurrent          = (PFNEGLMAKECURRENTPROC)           eglGetProcAddress("eglMakeCurrent");
-  if (!getDisplay || !initialize || !bindAPI || !chooseConfig || !createWindowSurface || !createContext || !makeCurrent)
+  if (!getError || !getDisplay || !initialize || !bindAPI || !chooseConfig || !createWindowSurface || !createContext || !makeCurrent)
     return GL_TRUE;
 
-  display = getDisplay((EGLNativeDisplayType) 0);
+  display = EGL_NO_DISPLAY;
-  if (!initialize(display, &majorVersion, &minorVersion))
+  if (queryDevices && getPlatformDisplay)
+  {
+    queryDevices(1, devices, &numDevices);
+    if (numDevices==1)
+    {
+      display = getPlatformDisplay(EGL_PLATFORM_DEVICE_EXT, devices[0], 0);
+    }
+  }
+  if (display==EGL_NO_DISPLAY)
+  {
+    display = getDisplay(EGL_DEFAULT_DISPLAY);
+  }
+  if (display == EGL_NO_DISPLAY)
     return GL_TRUE;
-  bindAPI(EGL_OPENGL_API);
+
-  if (!chooseConfig(display, attr, &config, 1, &numConfig) || (numConfig != 1))
+  eglewInit(display);
+
+  if (bindAPI(EGL_OPENGL_API) != EGL_TRUE)
     return GL_TRUE;
+
+  if (chooseConfig(display, configAttribs, &config, 1, &numConfig) != EGL_TRUE || (numConfig != 1))
+    return GL_TRUE;
+
+  ctx = createContext(display, config, EGL_NO_CONTEXT, contextAttribs);
+  if (NULL == ctx)
+    return GL_TRUE;
+
+  surface = EGL_NO_SURFACE;
+  /* Create a p-buffer surface if possible */
+  if (createPbufferSurface)
+  {
+    surface = createPbufferSurface(display, config, pBufferAttribs);
+  }
+  /* Create a generic surface without a native window, if necessary */
+  if (surface==EGL_NO_SURFACE)
+  {
     surface = createWindowSurface(display, config, (EGLNativeWindowType) NULL, NULL);
-  ctx = createContext(display, config, NULL, NULL);
+  }
-  if (NULL == ctx) return GL_TRUE;
+  if (surface == EGL_NO_SURFACE)
-  makeCurrent(display, surface, surface, ctx);
+    return GL_TRUE;
+
+  if (makeCurrent(display, surface, surface, ctx) != EGL_TRUE)
+    return GL_TRUE;
+
+  error = getError();
+  if (error!=EGL_SUCCESS)
+  {
+    printf("eglGetError: %d\n", error);
+    return GL_TRUE;
+  }
+
   return GL_FALSE;
 }