first draft to generate waves

1 files changed, 289 insertions, 0 deletions

diff --git a/glew/auto/src/glew_head.c b/glew/auto/src/glew_head.c
new file mode 100644
index 0000000..592cd0f
--- /dev/null
+++ b/glew/auto/src/glew_head.c
@@ -0,0 +1,289 @@
+#ifndef GLEW_INCLUDE
+#  include <GL/glew.h>
+#else
+#  include GLEW_INCLUDE
+#endif
+
+#if defined(GLEW_OSMESA)
+#  define GLAPI extern
+#  include <GL/osmesa.h>
+#elif defined(GLEW_EGL)
+#  include <GL/eglew.h>
+#elif defined(_WIN32)
+/*
+ * If NOGDI is defined, wingdi.h won't be included by windows.h, and thus
+ * wglGetProcAddress won't be declared. It will instead be implicitly declared,
+ * potentially incorrectly, which we don't want.
+ */
+#  if defined(NOGDI)
+#    undef NOGDI
+#  endif
+#  include <GL/wglew.h>
+#elif !defined(__ANDROID__) && !defined(__native_client__) && !defined(__HAIKU__) && (!defined(__APPLE__) || defined(GLEW_APPLE_GLX))
+#  include <GL/glxew.h>
+#endif
+
+#include <stddef.h>  /* For size_t */
+
+#if defined(GLEW_EGL)
+#elif defined(GLEW_REGAL)
+
+/* In GLEW_REGAL mode we call directly into the linked
+   libRegal.so glGetProcAddressREGAL for looking up
+   the GL function pointers. */
+
+#  undef glGetProcAddressREGAL
+#  ifdef WIN32
+extern void *  __stdcall glGetProcAddressREGAL(const GLchar *name);
+static void * (__stdcall * regalGetProcAddress) (const GLchar *) = glGetProcAddressREGAL;
+#    else
+extern void * glGetProcAddressREGAL(const GLchar *name);
+static void * (*regalGetProcAddress) (const GLchar *) = glGetProcAddressREGAL;
+#  endif
+#  define glGetProcAddressREGAL GLEW_GET_FUN(__glewGetProcAddressREGAL)
+
+#elif defined(__sgi) || defined (__sun) || defined(__HAIKU__) || defined(GLEW_APPLE_GLX)
+#include <dlfcn.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+void* dlGetProcAddress (const GLubyte* name)
+{
+  static void* h = NULL;
+  static void* gpa;
+
+  if (h == NULL)
+  {
+    if ((h = dlopen(NULL, RTLD_LAZY | RTLD_LOCAL)) == NULL) return NULL;
+    gpa = dlsym(h, "glXGetProcAddress");
+  }
+
+  if (gpa != NULL)
+    return ((void*(*)(const GLubyte*))gpa)(name);
+  else
+    return dlsym(h, (const char*)name);
+}
+#endif /* __sgi || __sun || GLEW_APPLE_GLX */
+
+#if defined(__APPLE__)
+#include <stdlib.h>
+#include <string.h>
+#include <AvailabilityMacros.h>
+
+#ifdef MAC_OS_X_VERSION_10_3
+
+#include <dlfcn.h>
+
+void* NSGLGetProcAddress (const GLubyte *name)
+{
+  static void* image = NULL;
+  void* addr;
+  if (NULL == image)
+  {
+    image = dlopen("/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL", RTLD_LAZY);
+  }
+  if( !image ) return NULL;
+  addr = dlsym(image, (const char*)name);
+  if( addr ) return addr;
+#ifdef GLEW_APPLE_GLX
+  return dlGetProcAddress( name ); // try next for glx symbols
+#else
+  return NULL;
+#endif
+}
+#else
+
+#include <mach-o/dyld.h>
+
+void* NSGLGetProcAddress (const GLubyte *name)
+{
+  static const struct mach_header* image = NULL;
+  NSSymbol symbol;
+  char* symbolName;
+  if (NULL == image)
+  {
+    image = NSAddImage("/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL", NSADDIMAGE_OPTION_RETURN_ON_ERROR);
+  }
+  /* prepend a '_' for the Unix C symbol mangling convention */
+  symbolName = malloc(strlen((const char*)name) + 2);
+  strcpy(symbolName+1, (const char*)name);
+  symbolName[0] = '_';
+  symbol = NULL;
+  /* if (NSIsSymbolNameDefined(symbolName))
+	 symbol = NSLookupAndBindSymbol(symbolName); */
+  symbol = image ? NSLookupSymbolInImage(image, symbolName, NSLOOKUPSYMBOLINIMAGE_OPTION_BIND | NSLOOKUPSYMBOLINIMAGE_OPTION_RETURN_ON_ERROR) : NULL;
+  free(symbolName);
+  if( symbol ) return NSAddressOfSymbol(symbol);
+#ifdef GLEW_APPLE_GLX
+  return dlGetProcAddress( name ); // try next for glx symbols
+#else
+  return NULL;
+#endif
+}
+#endif /* MAC_OS_X_VERSION_10_3 */
+#endif /* __APPLE__ */
+
+/*
+ * Define glewGetProcAddress.
+ */
+#if defined(GLEW_REGAL)
+#  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)
+#  define glewGetProcAddress(name) NSGLGetProcAddress(name)
+#elif defined(__sgi) || defined(__sun) || defined(__HAIKU__)
+#  define glewGetProcAddress(name) dlGetProcAddress(name)
+#elif defined(__ANDROID__)
+#  define glewGetProcAddress(name) NULL /* TODO */
+#elif defined(__native_client__)
+#  define glewGetProcAddress(name) NULL /* TODO */
+#else /* __linux */
+#  define glewGetProcAddress(name) (*glXGetProcAddressARB)(name)
+#endif
+
+/*
+ * Redefine GLEW_GET_VAR etc without const cast
+ */
+
+#undef GLEW_GET_VAR
+# define GLEW_GET_VAR(x) (x)
+
+#ifdef WGLEW_GET_VAR
+# undef WGLEW_GET_VAR
+# define WGLEW_GET_VAR(x) (x)
+#endif /* WGLEW_GET_VAR */
+
+#ifdef GLXEW_GET_VAR
+# undef GLXEW_GET_VAR
+# 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.
+ */
+
+static GLuint _glewStrLen (const GLubyte* s)
+{
+  GLuint i=0;
+  if (s == NULL) return 0;
+  while (s[i] != '\0') i++;
+  return i;
+}
+
+static GLuint _glewStrCLen (const GLubyte* s, GLubyte c)
+{
+  GLuint i=0;
+  if (s == NULL) return 0;
+  while (s[i] != '\0' && s[i] != c) i++;
+  return i;
+}
+
+static GLuint _glewStrCopy(char *d, const char *s, char c)
+{
+  GLuint i=0;
+  if (s == NULL) return 0;
+  while (s[i] != '\0' && s[i] != c) { d[i] = s[i]; i++; }
+  d[i] = '\0';
+  return i;
+}
+
+#if !defined(GLEW_OSMESA)
+#if !defined(__APPLE__) || defined(GLEW_APPLE_GLX)
+static GLboolean _glewStrSame (const GLubyte* a, const GLubyte* b, GLuint n)
+{
+  GLuint i=0;
+  if(a == NULL || b == NULL)
+    return (a == NULL && b == NULL && n == 0) ? GL_TRUE : GL_FALSE;
+  while (i < n && a[i] != '\0' && b[i] != '\0' && a[i] == b[i]) i++;
+  return i == n ? GL_TRUE : GL_FALSE;
+}
+#endif
+#endif
+
+static GLboolean _glewStrSame1 (const GLubyte** a, GLuint* na, const GLubyte* b, GLuint nb)
+{
+  while (*na > 0 && (**a == ' ' || **a == '\n' || **a == '\r' || **a == '\t'))
+  {
+    (*a)++;
+    (*na)--;
+  }
+  if(*na >= nb)
+  {
+    GLuint i=0;
+    while (i < nb && (*a)[i] == b[i]) i++;
+    if(i == nb)
+    {
+      *a = *a + nb;
+      *na = *na - nb;
+      return GL_TRUE;
+    }
+  }
+  return GL_FALSE;
+}
+
+static GLboolean _glewStrSame2 (const GLubyte** a, GLuint* na, const GLubyte* b, GLuint nb)
+{
+  if(*na >= nb)
+  {
+    GLuint i=0;
+    while (i < nb && (*a)[i] == b[i]) i++;
+    if(i == nb)
+    {
+      *a = *a + nb;
+      *na = *na - nb;
+      return GL_TRUE;
+    }
+  }
+  return GL_FALSE;
+}
+
+static GLboolean _glewStrSame3 (const GLubyte** a, GLuint* na, const GLubyte* b, GLuint nb)
+{
+  if(*na >= nb)
+  {
+    GLuint i=0;
+    while (i < nb && (*a)[i] == b[i]) i++;
+    if (i == nb && (*na == nb || (*a)[i] == ' ' || (*a)[i] == '\n' || (*a)[i] == '\r' || (*a)[i] == '\t'))
+    {
+      *a = *a + nb;
+      *na = *na - nb;
+      return GL_TRUE;
+    }
+  }
+  return GL_FALSE;
+}
+
+/*
+ * Search for name in the extensions string. Use of strstr()
+ * is not sufficient because extension names can be prefixes of
+ * other extension names. Could use strtok() but the constant
+ * string returned by glGetString might be in read-only memory.
+ */
+#if !defined(GLEW_OSMESA)
+#if !defined(__APPLE__) || defined(GLEW_APPLE_GLX)
+static GLboolean _glewSearchExtension (const char* name, const GLubyte *start, const GLubyte *end)
+{
+  const GLubyte* p;
+  GLuint len = _glewStrLen((const GLubyte*)name);
+  p = start;
+  while (p < end)
+  {
+    GLuint n = _glewStrCLen(p, ' ');
+    if (len == n && _glewStrSame((const GLubyte*)name, p, n)) return GL_TRUE;
+    p += n+1;
+  }
+  return GL_FALSE;
+}
+#endif
+#endif