Merge 2fb3fade79 into e82b76f719

.gitattributes

@@ -1,5 +1,6 @@
 *              text eol=lf
 *.png          binary
+*.pdf          binary
 build/*/*      text eol=crlf
 CMakeLists.txt text eol=lf
 build/cmake/*  text eol=lf

.travis.yml

@@ -5,10 +5,14 @@ script:
 - make -C auto clobber
 - make extensions
 - make dist-src
-- make clean; SYSTEM=linux        make 
+- make clean; SYSTEM=linux            make 
-- make clean; SYSTEM=linux-osmesa make
+- make clean; SYSTEM=linux-osmesa     make
-- pushd build/cmake; git clean -xdf .; cmake -G 'Unix Makefiles' .                ; make; popd
+- make clean; SYSTEM=linux-egl        make
-- pushd build/cmake; git clean -xdf .; cmake -G 'Unix Makefiles' -DGLEW_OSMESA=1 .; make; popd
+- make clean; SYSTEM=linux-clang      make 
+- make clean; SYSTEM=linux-clang-egl  make 
+- pushd build/cmake; git clean -xdf .; cmake -G 'Unix Makefiles' .                 ; make; popd
+- pushd build/cmake; git clean -xdf .; cmake -G 'Unix Makefiles' -DGLEW_OSMESA=1 . ; make; popd
+- pushd build/cmake; git clean -xdf .; cmake -G 'Unix Makefiles' -DGLEW_EGL=1 .    ; make; popd
 addons:
   apt:
     packages:
@@ -16,6 +20,7 @@ addons:
     - cmake
     - dos2unix
     - libosmesa6-dev
+    - libegl1-mesa-dev
   artifacts:
     bucket: glew
     s3_region: "us-east-1"

auto/Makefile

@@ -41,16 +41,19 @@ BLACKLIST = blacklist
 
 GL_CORE_SPEC := $(CORE)/GL_VERSION*
 GLX_CORE_SPEC := $(CORE)/GLX_VERSION*
+EGL_CORE_SPEC := $(CORE)/EGL_VERSION*
 ifeq (custom,$(MAKECMDGOALS))
 #GL_CORE_SPEC  := $(shell grep GL_VERSION custom.txt    |                       perl -pi -e "s=^=$(CORE)/=g;")
 GL_EXT_SPEC    := $(shell grep "^[ \t]*GL_" custom.txt  | grep -v GL_VERSION  | perl -pi -e "s=^=$(EXT)/=g;")
 WGL_EXT_SPEC   := $(shell grep "^[ \t]*WGL_" custom.txt |                       perl -pi -e "s=^=$(EXT)/=g;")
 #GLX_CORE_SPEC := $(shell grep GLX_VERSION custom.txt   |                       perl -pi -e "s=^=$(CORE)/=g;")
 GLX_EXT_SPEC   := $(shell grep "^[ \t]*GLX_" custom.txt | grep -v GLX_VERSION | perl -pi -e "s=^=$(EXT)/=g;")
+EGL_EXT_SPEC   := $(shell grep "^[ \t]*EGL_" custom.txt | grep -v EGL_VERSION | perl -pi -e "s=^=$(EXT)/=g;")
 else
 GL_EXT_SPEC := $(EXT)/GL_*
 WGL_EXT_SPEC := $(EXT)/WGL_*
 GLX_EXT_SPEC := $(EXT)/GLX_*
+EGL_EXT_SPEC := $(EXT)/EGL_*
 endif
 
 PARSE_SPEC = parse_spec.pl
@@ -65,7 +68,8 @@ B.DEST = $(TOP)/build
 I.TARGETS = \
 	$(I.DEST)/glew.h \
 	$(I.DEST)/wglew.h \
-	$(I.DEST)/glxew.h
+	$(I.DEST)/glxew.h \
+	$(I.DEST)/eglew.h
 
 ifeq (yes,$(GLEW_SPLIT_SOURCE))
 S.TARGETS = \
@@ -114,6 +118,7 @@ $(EXT)/.dummy: $(REGISTRY)/.dummy
 	@echo "--------------------------------------------------------------------"
 	rm -rf $(EXT)
 	$(BIN)/update_ext.sh $(EXT) $(REGISTRY) $(BLACKLIST)
+	$(BIN)/parse_xml.py registry/xml/egl.xml --core core/gl --extensions extensions/gl
 	$(BIN)/$(FILTER)     $(EXT)
 ifeq ($(patsubst Darwin%,Darwin,$(SYSTEM)), Darwin)
 	find $(CORE) -maxdepth 1 -type f | grep -v VERSION | grep -v "~" | \
@@ -183,6 +188,21 @@ $(I.DEST)/glxew.h: $(EXT)/.dummy
 	perl -e "s/GLXEW_VAR_EXPORT GLboolean __GLXEW_VERSION_1_2;/GLXEW_VAR_EXPORT GLboolean __GLXEW_VERSION_1_0;\nGLXEW_VAR_EXPORT GLboolean __GLXEW_VERSION_1_1;\nGLXEW_VAR_EXPORT GLboolean __GLXEW_VERSION_1_2;/" -pi $@
 	cat $(SRC)/glxew_tail.h >> $@
 
+$(I.DEST)/eglew.h: $(EXT)/.dummy
+	@echo "--------------------------------------------------------------------"
+	@echo "Creating eglew.h"
+	@echo "--------------------------------------------------------------------"
+	cp -f $(SRC)/glew_license.h $@
+	cat $(SRC)/mesa_license.h >> $@
+	cat $(SRC)/khronos_license.h >> $@
+	cat $(SRC)/eglew_head.h >> $@
+	$(BIN)/make_header.pl "" EGL $(EGL_CORE_SPEC) >> $@
+	$(BIN)/make_header.pl "" EGL $(EGL_EXT_SPEC) >> $@
+	cat $(SRC)/eglew_mid.h >> $@
+	$(BIN)/make_struct_fun.pl EGLEW_FUN_EXPORT $(EGL_CORE_SPEC) $(EGL_EXT_SPEC) >> $@
+	$(BIN)/make_struct_var.pl EGLEW_VAR_EXPORT $(EGL_CORE_SPEC) $(EGL_EXT_SPEC) >> $@
+	cat $(SRC)/eglew_tail.h >> $@
+
 $(S.DEST)/glew.c: $(EXT)/.dummy
 	@echo "--------------------------------------------------------------------"
 	@echo "Creating glew.c"
@@ -214,7 +234,21 @@ $(S.DEST)/glew.c: $(EXT)/.dummy
 	$(BIN)/make_list.pl $(GL_EXT_SPEC) >> $@
 	$(BIN)/make_list2.pl $(GL_EXT_SPEC) >> $@
 	echo -e "\n  return GLEW_OK;\n}\n" >> $@
-	echo -e "\n#if defined(_WIN32) && ! defined(GLEW_OSMESA)" >> $@
+	echo -e "\n#if defined(GLEW_OSMESA)" >> $@
+	echo -e "\n#elif defined(GLEW_EGL)" >> $@
+	$(BIN)/make_def_fun.pl EGL $(EGL_CORE_SPEC) >> $@
+	$(BIN)/make_def_fun.pl EGL $(EGL_EXT_SPEC) >> $@
+	echo -e "\n#if !defined(GLEW_MX)" >> $@;
+	$(BIN)/make_def_var.pl EGL $(EGL_CORE_SPEC) >> $@
+	$(BIN)/make_def_var.pl EGL $(EGL_EXT_SPEC) >> $@
+	echo -e "\n#endif /* !GLEW_MX */\n" >> $@;
+	$(BIN)/make_init.pl EGL $(EGL_CORE_SPEC) >> $@
+	$(BIN)/make_init.pl EGL $(EGL_EXT_SPEC) >> $@
+	cat $(SRC)/glew_init_egl.c >> $@
+	$(BIN)/make_list.pl $(EGL_CORE_SPEC) >> $@
+	$(BIN)/make_list.pl $(EGL_EXT_SPEC) >> $@
+	echo -e "\n  return GLEW_OK;\n}" >> $@
+	echo -e "\n#elif defined(_WIN32)" >> $@
 	echo -e "\n#if !defined(GLEW_MX)" >> $@
 	$(BIN)/make_def_fun.pl WGL $(WGL_EXT_SPEC) >> $@
 	$(BIN)/make_def_var.pl WGL $(WGL_EXT_SPEC) >> $@
@@ -223,7 +257,7 @@ $(S.DEST)/glew.c: $(EXT)/.dummy
 	cat $(SRC)/glew_init_wgl.c >> $@
 	$(BIN)/make_list.pl $(WGL_EXT_SPEC) >> $@
 	echo -e "\n  return GLEW_OK;\n}" >> $@;
-	echo -e "\n#elif !defined(GLEW_OSMESA) && !defined(__ANDROID__) && !defined(__native_client__) && !defined(__HAIKU__) && (!defined(__APPLE__) || defined(GLEW_APPLE_GLX))" >> $@
+	echo -e "\n#elif !defined(__ANDROID__) && !defined(__native_client__) && !defined(__HAIKU__) && (!defined(__APPLE__) || defined(GLEW_APPLE_GLX))" >> $@
 	$(BIN)/make_def_fun.pl GLX $(GLX_CORE_SPEC) >> $@
 	$(BIN)/make_def_fun.pl GLX $(GLX_EXT_SPEC) >> $@
 	echo -e "\n#if !defined(GLEW_MX)" >> $@;
@@ -246,6 +280,8 @@ $(S.DEST)/glew.c: $(EXT)/.dummy
 	$(BIN)/make_str.pl $(WGL_EXT_SPEC) >> $@
 	cat $(SRC)/glew_str_glx.c >> $@
 	$(BIN)/make_str.pl $(GLX_CORE_SPEC) $(GLX_EXT_SPEC) >> $@
+	cat $(SRC)/glew_str_egl.c >> $@
+	$(BIN)/make_str.pl $(EGL_CORE_SPEC) $(EGL_EXT_SPEC) >> $@
 	cat $(SRC)/glew_str_tail.c >> $@
 	perl -e "s/GLEW_VERSION_STRING/$(GLEW_VERSION)/g" -pi $@
 	perl -e "s/GLEW_VERSION_MAJOR_STRING/$(GLEW_MAJOR)/g" -pi $@
@@ -263,7 +299,10 @@ $(S.DEST)/glewinfo.c: $(EXT)/.dummy
 	cat $(SRC)/glewinfo_head.c >> $@
 	$(BIN)/make_info.pl $(GL_CORE_SPEC) >> $@
 	$(BIN)/make_info.pl $(GL_EXT_SPEC) >> $@
-	echo -e "#ifdef _WIN32\n" >> $@
+	echo -e "#if defined(GLEW_EGL)\n" >> $@
+	$(BIN)/make_info.pl $(EGL_CORE_SPEC) >> $@
+	$(BIN)/make_info.pl $(EGL_EXT_SPEC) >> $@
+	echo -e "#elif _WIN32\n" >> $@
 	$(BIN)/make_info.pl $(WGL_EXT_SPEC) >> $@
 	echo -e "#else /* _UNIX */\n" >> $@
 	$(BIN)/make_info.pl $(GLX_CORE_SPEC) >> $@
@@ -278,6 +317,9 @@ $(S.DEST)/glewinfo.c: $(EXT)/.dummy
 	cat $(SRC)/glewinfo_glx.c >> $@
 	$(BIN)/make_info_list.pl $(GLX_CORE_SPEC) >> $@
 	$(BIN)/make_info_list.pl $(GLX_EXT_SPEC) >> $@
+	cat $(SRC)/glewinfo_egl.c >> $@
+	$(BIN)/make_info_list.pl $(EGL_CORE_SPEC) >> $@
+	$(BIN)/make_info_list.pl $(EGL_EXT_SPEC) >> $@
 	cat $(SRC)/glewinfo_tail.c >> $@
 	perl -e 's/"glColorSubTable"/"glBlendEquation", glBlendEquation == NULL);\n  glewInfoFunc("glColorSubTable"/g' -pi $@
 	rm -f $@.bak

auto/bin/make_list.pl

@@ -38,7 +38,7 @@ if (@ARGV)
 		$extvar =~ s/GL(X*)_/GL$1EW_/;
 
 		my $extpre = $extname;
-		$extpre =~ s/^(W?)GL(X?).*$/\l$1gl\l$2ew/;
+		$extpre =~ s/^(W?E?)GL(X?).*$/\l$1gl\l$2ew/;
 
 		#my $pextvar = prefix_varname($extvar);
 

auto/bin/make_str.pl

@@ -24,11 +24,11 @@ if (@ARGV)
 	{
 		my ($extname, $exturl, $extstring, $reuse, $types, $tokens, $functions, $exacts) = parse_ext($ext);
 		my $exttype = $extname;
-		$exttype =~ s/(W*?)GL(X*?)_(.*?_)(.*)/$3/;
+		$exttype =~ s/(W?E?)GL(X?)_(.*?_)(.*)/$3/;
 		my $extrem = $extname;
-		$extrem =~ s/(W*?)GL(X*?)_(.*?_)(.*)/$4/;
+		$extrem =~ s/(W?E?)GL(X?)_(.*?_)(.*)/$4/;
 		my $extvar = $extname;
-		$extvar =~ s/(W*)GL(X*)_/$1GL$2EW_/;
+		$extvar =~ s/(W?E?)GL(X?)_/$1GL$2EW_/;
 		if(!($exttype =~ $curexttype))
 		{
 			if(length($curexttype) > 0)

auto/bin/parse_xml.py

@@ -0,0 +1,131 @@
+#!/usr/bin/python
+
+import re
+import sys
+from xml.dom.minidom import parse, Node
+
+def findChildren(node, path):
+    result = []
+    if len(path)==1:
+        for i in node.childNodes:
+            if i.nodeType==Node.ELEMENT_NODE:
+                if i.tagName==path[0]:
+                    result.append(i)
+    else:
+        for i in node.childNodes:
+            if i.nodeType==Node.ELEMENT_NODE:
+                if i.tagName==path[0]:
+                    result.extend(findChildren(i, path[1:]))
+    return result
+
+def findData(node, path):
+    return [ i.firstChild.data for i in findChildren(node, path) ]
+
+def findParams(node):
+    n = findData(node, ['name'])[0]
+    t = ''
+    for i in node.childNodes:
+        if i.nodeType==Node.TEXT_NODE:
+            t += i.data
+        if i.nodeType==Node.ELEMENT_NODE and i.tagName=='ptype':
+            t += i.firstChild.data
+    return ( t, n)
+
+def findEnums(dom):
+    ret = {}
+    for i in findChildren(dom, [ 'registry', 'enums', 'enum' ]):
+      n = i.getAttribute('name')
+      v = i.getAttribute('value')
+      ret[n] = v
+    return ret
+
+def findCommands(dom):
+    ret = {}
+    for i in findChildren(dom, [ 'registry', 'commands', 'command' ]):
+      r,n = findParams(findChildren(i, ['proto'])[0])
+      p = [ findParams(j) for j in findChildren(i, ['param'])]
+      ret[n] = (r, p)
+    return ret
+
+def findFeatures(dom):
+    ret = {}
+    for i in findChildren(dom, [ 'registry', 'feature' ]):
+        n = i.getAttribute('name')
+        e = []
+        c = []
+        for j in findChildren(i, [ 'require', 'enum' ]):
+            e.append(j.getAttribute("name"))
+        for j in findChildren(i, [ 'require', 'command' ]):
+            c.append(j.getAttribute("name"))
+        ret[n] = (e,c)
+    return ret
+
+def findExtensions(dom):
+    ret = {}
+    for i in findChildren(dom, [ 'registry', 'extensions', 'extension' ]):
+        n = i.getAttribute('name')
+        e = []
+        c = []
+        for j in findChildren(i, [ 'require', 'enum' ]):
+            e.append(j.getAttribute("name"))
+        for j in findChildren(i, [ 'require', 'command' ]):
+            c.append(j.getAttribute("name"))
+        ret[n] = (e,c)
+    return ret
+
+def findApi(dom, name):
+    enums      = findEnums(dom)
+    commands   = findCommands(dom)
+    features   = findFeatures(dom)
+    extensions = findExtensions(dom)
+    return (enums, commands, features, extensions)
+
+def writeExtension(f, name, extension, enums, commands):
+    f.write('%s\n'%name)
+    f.write('%s\n'%'https://www.khronos.org/registry/egl/specs/eglspec.1.5.pdf')
+    if name.find('_VERSION_')==-1:
+        f.write('%s\n'%name)
+    else:
+        f.write('\n')
+    f.write('\n')
+    enums = [ (j, enums[j]) for j in extension[0] ]
+    for e in sorted(enums, key=lambda i: i[1]):
+        f.write('\t%s %s\n'%(e[0], e[1]))
+    commands = [ (j, commands[j]) for j in extension[1] ]
+    for c in sorted(commands):
+        params = ', '.join( [ '%s %s'%(j[0], j[1]) for j in c[1][1] ] )
+        if len(params)==0:
+            params = ' void '
+        f.write('\t%s %s (%s)\n'%(c[1][0], c[0], params))
+
+if __name__ == '__main__':
+
+  from optparse import OptionParser
+  import os
+
+  parser = OptionParser('usage: %prog [options] [XML specs...]')
+  parser.add_option("--core", dest="core", help="location for core outputs", default='')
+  parser.add_option("--extensions", dest="extensions", help="location for extensions outputs", default='')
+
+  (options, args) = parser.parse_args()
+
+  for i in args:
+
+    dom = parse(i)
+    api = findApi(dom, 'egl')
+
+    print 'Found {} enums, {} commands, {} features and {} extensions.'.format(
+        len(api[0]), len(api[1]), len(api[2]), len(api[3]))
+
+    if len(options.core):
+        for i in api[2].keys():
+            f = open('%s/%s'%(options.core, i), 'w')
+            writeExtension(f, i, api[2][i], api[0], api[1])
+            f.close()
+
+    if len(options.extensions):
+        for i in api[3].keys():
+            f = open('%s/%s'%(options.extensions, i), 'w')
+            writeExtension(f, i, api[3][i], api[0], api[1])
+            f.close()
+

auto/src/eglew_head.h

@@ -0,0 +1,87 @@
+#ifndef __eglew_h__
+#define __eglew_h__
+#define __EGLEW_H__
+
+#ifdef __eglext_h_
+#error eglext.h included before eglew.h
+#endif
+
+#if defined(__egl_h_)
+#error egl.h included before eglew.h
+#endif
+
+#define __eglext_h_
+
+#define __egl_h_
+
+#ifndef EGLAPIENTRY
+#define EGLAPIENTRY
+#endif
+#ifndef EGLAPI
+#define EGLAPI extern
+#endif
+
+/* EGL Types */
+#include <sys/types.h>
+
+#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;
+typedef void *EGLDisplay;
+typedef void *EGLConfig;
+typedef void *EGLSurface;
+typedef void *EGLContext;
+typedef void (*__eglMustCastToProperFunctionPointerType)(void);
+
+typedef unsigned int EGLenum;
+typedef void *EGLClientBuffer;
+
+typedef void *EGLSync;
+typedef intptr_t EGLAttrib;
+typedef khronos_utime_nanoseconds_t EGLTime;
+typedef void *EGLImage;
+
+typedef void *EGLSyncKHR;
+typedef intptr_t EGLAttribKHR;
+typedef void *EGLLabelKHR;
+typedef void *EGLObjectKHR;
+typedef void (EGLAPIENTRY  *EGLDEBUGPROCKHR)(EGLenum error,const char *command,EGLint messageType,EGLLabelKHR threadLabel,EGLLabelKHR objectLabel,const char* message);
+typedef khronos_utime_nanoseconds_t EGLTimeKHR;
+typedef void *EGLImageKHR;
+typedef void *EGLStreamKHR;
+typedef khronos_uint64_t EGLuint64KHR;
+typedef int EGLNativeFileDescriptorKHR;
+typedef khronos_ssize_t EGLsizeiANDROID;
+typedef void (*EGLSetBlobFuncANDROID) (const void *key, EGLsizeiANDROID keySize, const void *value, EGLsizeiANDROID valueSize);
+typedef EGLsizeiANDROID (*EGLGetBlobFuncANDROID) (const void *key, EGLsizeiANDROID keySize, void *value, EGLsizeiANDROID valueSize);
+typedef void *EGLDeviceEXT;
+typedef void *EGLOutputLayerEXT;
+typedef void *EGLOutputPortEXT;
+typedef void *EGLSyncNV;
+typedef khronos_utime_nanoseconds_t EGLTimeNV;
+typedef khronos_utime_nanoseconds_t EGLuint64NV;
+
+struct EGLClientPixmapHI;
+
+#define EGL_DONT_CARE                     ((EGLint)-1)
+
+#define EGL_NO_CONTEXT                    ((EGLContext)0)
+#define EGL_NO_DISPLAY                    ((EGLDisplay)0)
+#define EGL_NO_IMAGE                      ((EGLImage)0)
+#define EGL_NO_SURFACE                    ((EGLSurface)0)
+#define EGL_NO_SYNC                       ((EGLSync)0)
+
+#define EGL_UNKNOWN                       ((EGLint)-1)
+
+#define EGL_DEFAULT_DISPLAY               ((EGLNativeDisplayType)0)
+
+EGLAPI __eglMustCastToProperFunctionPointerType EGLAPIENTRY eglGetProcAddress (const char *procname);

auto/src/eglew_mid.h

@@ -0,0 +1,4 @@
+/* ------------------------------------------------------------------------- */
+
+#define EGLEW_FUN_EXPORT GLEW_FUN_EXPORT
+#define EGLEW_VAR_EXPORT GLEW_VAR_EXPORT

auto/src/eglew_tail.h

@@ -0,0 +1,15 @@
+/* ------------------------------------------------------------------------ */
+
+GLEWAPI GLenum GLEWAPIENTRY eglewInit (EGLDisplay display);
+GLEWAPI GLboolean GLEWAPIENTRY eglewIsSupported (const char *name);
+
+#define EGLEW_GET_VAR(x) (*(const GLboolean*)&x)
+#define EGLEW_GET_FUN(x) x
+
+GLEWAPI GLboolean GLEWAPIENTRY eglewGetExtension (const char *name);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __eglew_h__ */

auto/src/glew_head.c

@@ -3,6 +3,8 @@
 #if defined(GLEW_OSMESA)
 #  define GLAPI extern
 #  include <GL/osmesa.h>
+#elif defined(GLEW_EGL)
+#  include <GL/eglew.h>
 #elif defined(_WIN32)
 #  include <GL/wglew.h>
 #elif !defined(__ANDROID__) && !defined(__native_client__) && !defined(__HAIKU__) && (!defined(__APPLE__) || defined(GLEW_APPLE_GLX))
@@ -13,7 +15,8 @@
 #include <stdlib.h>  /* For bsearch */
 #include <string.h>  /* For memset */
 
-#if defined(GLEW_REGAL)
+#if defined(GLEW_EGL)
+#elif defined(GLEW_REGAL)
 
 /* In GLEW_REGAL mode we call direcly into the linked
    libRegal.so glGetProcAddressREGAL for looking up
@@ -117,6 +120,8 @@ void* NSGLGetProcAddress (const GLubyte *name)
 #  define glewGetProcAddress(name) regalGetProcAddress((const GLchar *)name)
 #elif defined(GLEW_OSMESA)
 #  define glewGetProcAddress(name) OSMesaGetProcAddress((const char *)name)
+#elif defined(GLEW_EGL)
+#  define glewGetProcAddress(name) eglGetProcAddress((const char *)name)
 #elif defined(_WIN32)
 #  define glewGetProcAddress(name) wglGetProcAddress((LPCSTR)name)
 #elif defined(__APPLE__) && !defined(GLEW_APPLE_GLX)
@@ -148,6 +153,11 @@ void* NSGLGetProcAddress (const GLubyte *name)
 # define GLXEW_GET_VAR(x) (x)
 #endif /* GLXEW_GET_VAR */
 
+#ifdef EGLEW_GET_VAR
+# undef EGLEW_GET_VAR
+# define EGLEW_GET_VAR(x) (x)
+#endif /* EGLEW_GET_VAR */
+
 /*
  * GLEW, just like OpenGL or GLU, does not rely on the standard C library.
  * These functions implement the functionality required in this file.

auto/src/glew_init_egl.c

@@ -0,0 +1,45 @@
+  /* ------------------------------------------------------------------------ */
+
+GLboolean eglewGetExtension (const char* name)
+{
+  const GLubyte* start;
+  const GLubyte* end;
+
+  start = (const GLubyte*) eglQueryString(eglGetCurrentDisplay(), EGL_EXTENSIONS);
+  if (0 == start) return GL_FALSE;
+  end = start + _glewStrLen(start);
+  return _glewSearchExtension(name, start, end);
+}
+
+GLenum eglewInit (EGLDisplay display)
+{
+  EGLint major, minor;
+  const GLubyte* extStart;
+  const GLubyte* extEnd;
+  PFNEGLINITIALIZEPROC initialize = NULL;
+  PFNEGLQUERYSTRINGPROC queryString = NULL;
+
+  /* Load necessary entry points */
+  initialize = (PFNEGLINITIALIZEPROC)   glewGetProcAddress("eglInitialize");
+  queryString = (PFNEGLQUERYSTRINGPROC) glewGetProcAddress("eglQueryString");
+  if (!initialize || !queryString)
+    return 1;
+
+  /* query EGK version */
+  if (initialize(display, &major, &minor) != EGL_TRUE)
+    return 1;
+
+  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;
+  EGLEW_VERSION_1_3   = EGLEW_VERSION_1_4 == GL_TRUE || ( major == 1 && minor >= 3 ) ? GL_TRUE : GL_FALSE;
+  EGLEW_VERSION_1_2   = EGLEW_VERSION_1_3 == GL_TRUE || ( major == 1 && minor >= 2 ) ? GL_TRUE : GL_FALSE;
+  EGLEW_VERSION_1_1   = EGLEW_VERSION_1_2 == GL_TRUE || ( major == 1 && minor >= 1 ) ? GL_TRUE : GL_FALSE;
+  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(display, EGL_EXTENSIONS);
+  if (extStart == 0)
+    extStart = (const GLubyte *)"";
+  extEnd = extStart + _glewStrLen(extStart);
+
+  /* initialize extensions */

auto/src/glew_init_gl.c

@@ -71,14 +71,22 @@ GLboolean GLEWAPIENTRY glewGetExtension (const char* name)
 
 /* ------------------------------------------------------------------------- */
 
+typedef const GLubyte* (GLAPIENTRY * PFNGLGETSTRINGPROC) (GLenum name);
+typedef void (GLAPIENTRY * PFNGLGETINTEGERVPROC) (GLenum pname, GLint *params);
+
 static GLenum GLEWAPIENTRY glewContextInit ()
 {
+  PFNGLGETSTRINGPROC getString;
   const GLubyte* s;
   GLuint dot;
   GLint major, minor;
 
   /* query opengl version */
-  s = glGetString(GL_VERSION);
+  getString = (PFNGLGETSTRINGPROC)  glewGetProcAddress((const GLubyte*)"glGetString");
+  if (!getString)
+    return GLEW_ERROR_NO_GL_VERSION;
+
+  s = getString(GL_VERSION);
   dot = _glewStrCLen(s, '.');
   if (dot == 0)
     return GLEW_ERROR_NO_GL_VERSION;
@@ -123,11 +131,14 @@ static GLenum GLEWAPIENTRY glewContextInit ()
   {
     GLint n = 0;
     GLint i;
+    PFNGLGETINTEGERVPROC getIntegerv;
     PFNGLGETSTRINGIPROC getStringi;
     const char *ext;
     GLboolean *enable;
 
-    glGetIntegerv(GL_NUM_EXTENSIONS, &n);
+    getIntegerv = (PFNGLGETINTEGERVPROC) glewGetProcAddress((const GLubyte*)"glGetIntegerv");
+    if (getIntegerv)
+      getIntegerv(GL_NUM_EXTENSIONS, &n);
 
     /* glGetStringi is OpenGL 3.0 */
     getStringi = (PFNGLGETSTRINGIPROC) glewGetProcAddress((const GLubyte*)"glGetStringi");
@@ -156,7 +167,7 @@ static GLenum GLEWAPIENTRY glewContextInit ()
     char ext[128];
     GLboolean *enable;
 
-    extensions = (const char *) glGetString(GL_EXTENSIONS);
+    extensions = (const char *) getString(GL_EXTENSIONS);
 
     if (extensions)
     {

auto/src/glew_init_tail.c

@@ -35,9 +35,15 @@ 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_OSMESA) || defined(__ANDROID__) || defined(__native_client__) || defined(__HAIKU__)
+#if defined(GLEW_EGL)
+  getCurrentDisplay = (PFNEGLGETCURRENTDISPLAYPROC) glewGetProcAddress("eglGetCurrentDisplay");
+  return eglewInit(getCurrentDisplay());
+#elif defined(GLEW_OSMESA) || defined(__ANDROID__) || defined(__native_client__) || defined(__HAIKU__)
   return r;
 #elif defined(_WIN32)
   return wglewInit();

auto/src/glew_str_egl.c

@@ -0,0 +1,17 @@
+    }
+    ret = (len == 0);
+  }
+  return ret;
+}
+
+#elif defined(GLEW_EGL)
+
+GLboolean eglewIsSupported (const char* name)
+{
+  const GLubyte* pos = (const GLubyte*)name;
+  GLuint len = _glewStrLen(pos);
+  GLboolean ret = GL_TRUE;
+  while (ret && len > 0)
+  {
+    if(_glewStrSame1(&pos, &len, (const GLubyte*)"EGL_", 4))
+    {

auto/src/glew_str_glx.c

@@ -4,7 +4,7 @@
   return ret;
 }
 
-#elif !defined(GLEW_OSMESA) && !defined(__ANDROID__) && !defined(__native_client__) && !defined(__HAIKU__) && !defined(__APPLE__) || defined(GLEW_APPLE_GLX)
+#elif !defined(GLEW_OSMESA) && !defined(GLEW_EGL) && !defined(__ANDROID__) && !defined(__native_client__) && !defined(__HAIKU__) && !defined(__APPLE__) || defined(GLEW_APPLE_GLX)
 
 GLboolean glxewIsSupported (const char* name)
 {

auto/src/glew_str_wgl.c

@@ -4,7 +4,7 @@
   return ret;
 }
 
-#if defined(_WIN32) && !defined(GLEW_OSMESA)
+#if defined(_WIN32) && !defined(GLEW_EGL) && !defined(GLEW_OSMESA)
 
 GLboolean GLEWAPIENTRY wglewIsSupported (const char* name)
 {

auto/src/glewinfo_egl.c

@@ -0,0 +1,6 @@
+}
+
+#elif defined(GLEW_EGL)
+
+static void eglewInfo ()
+{

auto/src/glewinfo_glx.c

@@ -1,6 +1,6 @@
 }
 
-#elif !defined(GLEW_OSMESA) /* _UNIX */
+#elif !defined(GLEW_EGL) && !defined(GLEW_OSMESA) /* _UNIX */
 
 static void glxewInfo ()
 {

auto/src/glewinfo_head.c

@@ -2,7 +2,9 @@
 #include <stdlib.h>
 #include <string.h>
 #include <GL/glew.h>
-#if defined(GLEW_OSMESA)
+#if defined(GLEW_EGL)
+#include <GL/eglew.h>
+#elif defined(GLEW_OSMESA)
 #define GLAPI extern
 #include <GL/osmesa.h>
 #elif defined(_WIN32)
@@ -26,6 +28,7 @@ static FILE* f;
 struct createParams
 {
 #if defined(GLEW_OSMESA)
+#elif defined(GLEW_EGL)
 #elif defined(_WIN32)
   int         pixelformat;
 #elif !defined(__APPLE__) && !defined(__HAIKU__) || defined(GLEW_APPLE_GLX)

auto/src/glewinfo_tail.c

@@ -10,6 +10,7 @@ int main (int argc, char** argv)
   struct createParams params =
   {
 #if defined(GLEW_OSMESA)
+#elif defined(GLEW_EGL)
 #elif defined(_WIN32)
     -1,  /* pixelformat */
 #elif !defined(__HAIKU__) && !defined(__APPLE__) || defined(GLEW_APPLE_GLX)
@@ -22,20 +23,26 @@ int main (int argc, char** argv)
     0    /* flags */
   };
 
+#if defined(GLEW_EGL)
+  typedef const GLubyte* (GLAPIENTRY * PFNGLGETSTRINGPROC) (GLenum name);
+  PFNGLGETSTRINGPROC getString;
+#endif
+
   if (glewParseArgs(argc-1, argv+1, &params))
   {
     fprintf(stderr, "Usage: glewinfo "
 #if defined(GLEW_OSMESA)
+#elif defined(GLEW_EGL)
 #elif defined(_WIN32)
-	    "[-pf <pixelformat>] "
+      "[-pf <pixelformat>] "
 #elif !defined(__HAIKU__) && !defined(__APPLE__) || defined(GLEW_APPLE_GLX)
-	    "[-display <display>] "
+      "[-display <display>] "
-	    "[-visual <visual id>] "
+      "[-visual <visual id>] "
 #endif
-	    "[-version <OpenGL version>] "
+      "[-version <OpenGL version>] "
-	    "[-profile core|compatibility] "
+      "[-profile core|compatibility] "
-	    "[-flag debug|forward]"
+      "[-flag debug|forward]"
-	    "\n");
+      "\n");
     return 1;
   }
 
@@ -53,6 +60,17 @@ int main (int argc, char** argv)
     glewDestroyContext();
     return 1;
   }
+
+#if defined(GLEW_EGL)
+  getString = (PFNGLGETSTRINGPROC) eglGetProcAddress("glGetString");
+  if (!getString)
+  {
+    fprintf(stderr, "Error: eglGetProcAddress failed to fetch glGetString\n");
+    glewDestroyContext();
+    return 1;
+  }
+#endif
+
 #if defined(_WIN32)
 #if defined(_MSC_VER) && (_MSC_VER >= 1400)
   if (fopen_s(&f, "glewinfo.txt", "w") != 0)
@@ -69,17 +87,26 @@ int main (int argc, char** argv)
   fprintf(f, "---------------------------\n\n");
   fprintf(f, "GLEW version %s\n", glewGetString(GLEW_VERSION));
 #if defined(GLEW_OSMESA)
+#elif defined(GLEW_EGL)
 #elif defined(_WIN32)
   fprintf(f, "Reporting capabilities of pixelformat %d\n", params.pixelformat);
 #elif !defined(__APPLE__) || defined(GLEW_APPLE_GLX)
   fprintf(f, "Reporting capabilities of display %s, visual 0x%x\n",
     params.display == NULL ? getenv("DISPLAY") : params.display, params.visual);
 #endif
+#if defined(GLEW_EGL)
   fprintf(f, "Running on a %s from %s\n",
-	  glGetString(GL_RENDERER), glGetString(GL_VENDOR));
+    getString(GL_RENDERER), getString(GL_VENDOR));
+  fprintf(f, "OpenGL version %s is supported\n", getString(GL_VERSION));
+#else
+  fprintf(f, "Running on a %s from %s\n",
+    glGetString(GL_RENDERER), glGetString(GL_VENDOR));
   fprintf(f, "OpenGL version %s is supported\n", glGetString(GL_VERSION));
+#endif
   glewInfo();
 #if defined(GLEW_OSMESA)
+#elif defined(GLEW_EGL)
+  eglewInfo();
 #elif defined(_WIN32)
   wglewInfo();
 #else
@@ -119,6 +146,7 @@ GLboolean glewParseArgs (int argc, char** argv, struct createParams *params)
       ++p;
     }
 #if defined(GLEW_OSMESA)
+#elif defined(GLEW_EGL)
 #elif defined(_WIN32)
     else if (!strcmp(argv[p], "-pf") || !strcmp(argv[p], "-pixelformat"))
     {
@@ -130,7 +158,7 @@ GLboolean glewParseArgs (int argc, char** argv, struct createParams *params)
     {
       if (++p >= argc) return GL_TRUE;
       params->display = argv[p++];
-    }
+     }
     else if (!strcmp(argv[p], "-visual"))
     {
       if (++p >= argc) return GL_TRUE;
@@ -145,7 +173,127 @@ GLboolean glewParseArgs (int argc, char** argv, struct createParams *params)
 
 /* ------------------------------------------------------------------------ */
 
-#if defined(GLEW_OSMESA)
+#if defined(GLEW_EGL)
+EGLDisplay  display;
+EGLContext  ctx;
+
+/* See: http://stackoverflow.com/questions/12662227/opengl-es2-0-offscreen-context-for-fbo-rendering */
+
+GLboolean glewCreateContext (struct createParams *params)
+{
+  EGLDeviceEXT devices[1];
+  EGLint numDevices;
+  EGLSurface  surface;
+  EGLint majorVersion, minorVersion;
+  EGLint configAttribs[] = {
+        EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
+        EGL_RED_SIZE, 1,
+        EGL_GREEN_SIZE, 1,
+        EGL_BLUE_SIZE, 1,
+        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;
+  EGLBoolean pBuffer;
+
+  PFNEGLQUERYDEVICESEXTPROC       queryDevices = NULL;
+  PFNEGLGETPLATFORMDISPLAYEXTPROC getPlatformDisplay = NULL;
+  PFNEGLGETERRORPROC              getError = NULL;
+  PFNEGLGETDISPLAYPROC            getDisplay = NULL;
+  PFNEGLINITIALIZEPROC            initialize = NULL;
+  PFNEGLBINDAPIPROC               bindAPI    = NULL;
+  PFNEGLCHOOSECONFIGPROC          chooseConfig = NULL;
+  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 (!getError || !getDisplay || !initialize || !bindAPI || !chooseConfig || !createWindowSurface || !createContext || !makeCurrent)
+    return GL_TRUE;
+
+  pBuffer = 0;
+  display = EGL_NO_DISPLAY;
+  if (queryDevices && getPlatformDisplay)
+  {
+    queryDevices(1, devices, &numDevices);
+    if (numDevices==1)
+    {
+      /* Nvidia EGL doesn't need X11 for p-buffer surface */
+      display = getPlatformDisplay(EGL_PLATFORM_DEVICE_EXT, devices[0], 0);
+      configAttribs[1] = EGL_PBUFFER_BIT;
+      pBuffer = 1;
+    }
+  }
+  if (display==EGL_NO_DISPLAY)
+  {
+    /* Fall-back to X11 surface, works on Mesa */
+    display = getDisplay(EGL_DEFAULT_DISPLAY);
+  }
+  if (display == EGL_NO_DISPLAY)
+    return GL_TRUE;
+
+  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, pBuffer ? contextAttribs : NULL);
+  if (NULL == ctx)
+    return GL_TRUE;
+
+  surface = EGL_NO_SURFACE;
+  /* Create a p-buffer surface if possible */
+  if (pBuffer && 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);
+  }
+#if 0
+  if (surface == EGL_NO_SURFACE)
+    return GL_TRUE;
+#endif
+
+  if (makeCurrent(display, surface, surface, ctx) != EGL_TRUE)
+    return GL_TRUE;
+
+  return GL_FALSE;
+}
+
+void glewDestroyContext ()
+{
+  if (NULL != ctx) eglDestroyContext(display, ctx);
+}
+
+#elif defined(GLEW_OSMESA)
 OSMesaContext ctx;
 
 static const GLint osmFormat = GL_UNSIGNED_BYTE;

auto/src/glewinfo_wgl.c

@@ -2,7 +2,7 @@
 
 /* ------------------------------------------------------------------------ */
 
-#if defined(_WIN32) && !defined(GLEW_OSMESA)
+#if defined(_WIN32) && !defined(GLEW_EGL) && !defined(GLEW_OSMESA)
 
 static void wglewInfo ()
 {

config/Makefile.linux-clang-egl

@@ -0,0 +1,4 @@
+include config/Makefile.linux-clang
+
+LDFLAGS.GL = -lEGL -lGL
+CFLAGS.EXTRA += -DGLEW_EGL

config/Makefile.linux-egl

@@ -0,0 +1,4 @@
+include config/Makefile.linux
+
+LDFLAGS.GL = -lEGL -lGL
+CFLAGS.EXTRA += -DGLEW_EGL

src/visualinfo.c

@@ -37,6 +37,8 @@
 #if defined(GLEW_OSMESA)
 #define GLAPI extern
 #include <GL/osmesa.h>
+#elif defined(GLEW_EGL)
+#include <GL/eglew.h>
 #elif defined(_WIN32)
 #include <GL/wglew.h>
 #elif defined(__APPLE__) && !defined(GLEW_APPLE_GLX)
@@ -62,6 +64,8 @@ typedef struct GLContextStruct
 {
 #if defined(GLEW_OSMESA)
   OSMesaContext ctx;
+#elif defined(GLEW_EGL)
+  EGLContext ctx;
 #elif defined(_WIN32)
   HWND wnd;
   HDC dc;
@@ -186,6 +190,7 @@ main (int argc, char** argv)
   /* ---------------------------------------------------------------------- */
   /* extensions string */
 #if defined(GLEW_OSMESA)
+#elif defined(GLEW_EGL)
 #elif defined(_WIN32)
   /* WGL extensions */
   if (WGLEW_ARB_extensions_string || WGLEW_EXT_extensions_string)
@@ -264,7 +269,7 @@ void PrintExtensions (const char* s)
 
 /* ---------------------------------------------------------------------- */
 
-#if defined(GLEW_OSMESA)
+#if defined(GLEW_OSMESA) || defined(GLEW_EGL)
 
 void
 VisualInfo (GLContext* ctx)
@@ -1048,6 +1053,27 @@ void DestroyContext (GLContext* ctx)
   if (NULL == ctx) return;
   if (NULL != ctx->ctx) OSMesaDestroyContext(ctx->ctx);
 }
+/* ------------------------------------------------------------------------ */
+
+#elif defined(GLEW_EGL)
+void InitContext (GLContext* ctx)
+{
+  ctx->ctx = NULL;
+}
+
+GLboolean CreateContext (GLContext* ctx)
+{
+  return GL_FALSE;
+}
+
+void DestroyContext (GLContext* ctx)
+{
+  if (NULL == ctx) return;
+  return;
+}
+
+/* ------------------------------------------------------------------------ */
+
 #elif defined(_WIN32)
 
 void InitContext (GLContext* ctx)