Commit 4fc43279 authored by Nigel Stewart's avatar Nigel Stewart
Browse files

Eliminate the internal use of CONST_CAST, to avoid gcc warnings with -Wcast-qual flag.

https://github.com/nigels-com/glew/issues/5
parent 4b78dc4b
......@@ -46,18 +46,18 @@ if (@ARGV)
if (length($extstring))
{
print " CONST_CAST(" . $extvar . ") = _glewSearchExtension(\"$extstring\", extStart, extEnd);\n";
print " " . $extvar . " = _glewSearchExtension(\"$extstring\", extStart, extEnd);\n";
}
if (keys %$functions)
{
if ($extname =~ /WGL_.*/)
{
print " if (glewExperimental || " . $extvar . "|| crippled) CONST_CAST(" . $extvar . ")= !_glewInit_$extname(GLEW_CONTEXT_ARG_VAR_INIT);\n";
print " if (glewExperimental || " . $extvar . "|| crippled) " . $extvar . "= !_glewInit_$extname(GLEW_CONTEXT_ARG_VAR_INIT);\n";
}
else
{
print " if (glewExperimental || " . $extvar . ") CONST_CAST(" . $extvar . ") = !_glewInit_$extname(GLEW_CONTEXT_ARG_VAR_INIT);\n";
print " if (glewExperimental || " . $extvar . ") " . $extvar . " = !_glewInit_$extname(GLEW_CONTEXT_ARG_VAR_INIT);\n";
}
}
print "#endif /* $extname */\n";
......
......@@ -154,9 +154,33 @@ void* NSGLGetProcAddress (const GLubyte *name)
#endif
/*
* Define GLboolean const cast.
* Redefine GLEW_GET_VAR etc without const cast
*/
#define CONST_CAST(x) (*(GLboolean*)&x)
#undef GLEW_GET_VAR
#ifdef GLEW_MX
# define GLEW_GET_VAR(x) (glewGetContext()->x)
#else /* GLEW_MX */
# define GLEW_GET_VAR(x) (x)
#endif /* GLEW_MX */
#ifdef WGLEW_GET_VAR
# undef WGLEW_GET_VAR
# ifdef GLEW_MX
# define WGLEW_GET_VAR(x) (wglewGetContext()->x)
# else /* GLEW_MX */
# define WGLEW_GET_VAR(x) (x)
# endif /* GLEW_MX */
#endif /* WGLEW_GET_VAR */
#ifdef GLXEW_GET_VAR
# undef GLXEW_GET_VAR
# ifdef GLEW_MX
# define GLXEW_GET_VAR(x) (glxewGetContext()->x)
# else /* GLEW_MX */
# define GLXEW_GET_VAR(x) (x)
# endif /* GLEW_MX */
#endif /* GLXEW_GET_VAR */
/*
* GLEW, just like OpenGL or GLU, does not rely on the standard C library.
......
......@@ -44,23 +44,23 @@ GLenum GLEWAPIENTRY glewContextInit (GLEW_CONTEXT_ARG_DEF_LIST)
}
else
{
CONST_CAST(GLEW_VERSION_4_4) = ( major > 4 ) || ( major == 4 && minor >= 4 ) ? GL_TRUE : GL_FALSE;
CONST_CAST(GLEW_VERSION_4_3) = GLEW_VERSION_4_4 == GL_TRUE || ( major == 4 && minor >= 3 ) ? GL_TRUE : GL_FALSE;
CONST_CAST(GLEW_VERSION_4_2) = GLEW_VERSION_4_3 == GL_TRUE || ( major == 4 && minor >= 2 ) ? GL_TRUE : GL_FALSE;
CONST_CAST(GLEW_VERSION_4_1) = GLEW_VERSION_4_2 == GL_TRUE || ( major == 4 && minor >= 1 ) ? GL_TRUE : GL_FALSE;
CONST_CAST(GLEW_VERSION_4_0) = GLEW_VERSION_4_1 == GL_TRUE || ( major == 4 ) ? GL_TRUE : GL_FALSE;
CONST_CAST(GLEW_VERSION_3_3) = GLEW_VERSION_4_0 == GL_TRUE || ( major == 3 && minor >= 3 ) ? GL_TRUE : GL_FALSE;
CONST_CAST(GLEW_VERSION_3_2) = GLEW_VERSION_3_3 == GL_TRUE || ( major == 3 && minor >= 2 ) ? GL_TRUE : GL_FALSE;
CONST_CAST(GLEW_VERSION_3_1) = GLEW_VERSION_3_2 == GL_TRUE || ( major == 3 && minor >= 1 ) ? GL_TRUE : GL_FALSE;
CONST_CAST(GLEW_VERSION_3_0) = GLEW_VERSION_3_1 == GL_TRUE || ( major == 3 ) ? GL_TRUE : GL_FALSE;
CONST_CAST(GLEW_VERSION_2_1) = GLEW_VERSION_3_0 == GL_TRUE || ( major == 2 && minor >= 1 ) ? GL_TRUE : GL_FALSE;
CONST_CAST(GLEW_VERSION_2_0) = GLEW_VERSION_2_1 == GL_TRUE || ( major == 2 ) ? GL_TRUE : GL_FALSE;
CONST_CAST(GLEW_VERSION_1_5) = GLEW_VERSION_2_0 == GL_TRUE || ( major == 1 && minor >= 5 ) ? GL_TRUE : GL_FALSE;
CONST_CAST(GLEW_VERSION_1_4) = GLEW_VERSION_1_5 == GL_TRUE || ( major == 1 && minor >= 4 ) ? GL_TRUE : GL_FALSE;
CONST_CAST(GLEW_VERSION_1_3) = GLEW_VERSION_1_4 == GL_TRUE || ( major == 1 && minor >= 3 ) ? GL_TRUE : GL_FALSE;
CONST_CAST(GLEW_VERSION_1_2_1) = GLEW_VERSION_1_3 == GL_TRUE ? GL_TRUE : GL_FALSE;
CONST_CAST(GLEW_VERSION_1_2) = GLEW_VERSION_1_2_1 == GL_TRUE || ( major == 1 && minor >= 2 ) ? GL_TRUE : GL_FALSE;
CONST_CAST(GLEW_VERSION_1_1) = GLEW_VERSION_1_2 == GL_TRUE || ( major == 1 && minor >= 1 ) ? GL_TRUE : GL_FALSE;
GLEW_VERSION_4_4 = ( major > 4 ) || ( major == 4 && minor >= 4 ) ? GL_TRUE : GL_FALSE;
GLEW_VERSION_4_3 = GLEW_VERSION_4_4 == GL_TRUE || ( major == 4 && minor >= 3 ) ? GL_TRUE : GL_FALSE;
GLEW_VERSION_4_2 = GLEW_VERSION_4_3 == GL_TRUE || ( major == 4 && minor >= 2 ) ? GL_TRUE : GL_FALSE;
GLEW_VERSION_4_1 = GLEW_VERSION_4_2 == GL_TRUE || ( major == 4 && minor >= 1 ) ? GL_TRUE : GL_FALSE;
GLEW_VERSION_4_0 = GLEW_VERSION_4_1 == GL_TRUE || ( major == 4 ) ? GL_TRUE : GL_FALSE;
GLEW_VERSION_3_3 = GLEW_VERSION_4_0 == GL_TRUE || ( major == 3 && minor >= 3 ) ? GL_TRUE : GL_FALSE;
GLEW_VERSION_3_2 = GLEW_VERSION_3_3 == GL_TRUE || ( major == 3 && minor >= 2 ) ? GL_TRUE : GL_FALSE;
GLEW_VERSION_3_1 = GLEW_VERSION_3_2 == GL_TRUE || ( major == 3 && minor >= 1 ) ? GL_TRUE : GL_FALSE;
GLEW_VERSION_3_0 = GLEW_VERSION_3_1 == GL_TRUE || ( major == 3 ) ? GL_TRUE : GL_FALSE;
GLEW_VERSION_2_1 = GLEW_VERSION_3_0 == GL_TRUE || ( major == 2 && minor >= 1 ) ? GL_TRUE : GL_FALSE;
GLEW_VERSION_2_0 = GLEW_VERSION_2_1 == GL_TRUE || ( major == 2 ) ? GL_TRUE : GL_FALSE;
GLEW_VERSION_1_5 = GLEW_VERSION_2_0 == GL_TRUE || ( major == 1 && minor >= 5 ) ? GL_TRUE : GL_FALSE;
GLEW_VERSION_1_4 = GLEW_VERSION_1_5 == GL_TRUE || ( major == 1 && minor >= 4 ) ? GL_TRUE : GL_FALSE;
GLEW_VERSION_1_3 = GLEW_VERSION_1_4 == GL_TRUE || ( major == 1 && minor >= 3 ) ? GL_TRUE : GL_FALSE;
GLEW_VERSION_1_2_1 = GLEW_VERSION_1_3 == GL_TRUE ? GL_TRUE : GL_FALSE;
GLEW_VERSION_1_2 = GLEW_VERSION_1_2_1 == GL_TRUE || ( major == 1 && minor >= 2 ) ? GL_TRUE : GL_FALSE;
GLEW_VERSION_1_1 = GLEW_VERSION_1_2 == GL_TRUE || ( major == 1 && minor >= 1 ) ? GL_TRUE : GL_FALSE;
}
/* query opengl extensions string */
......
......@@ -20,11 +20,11 @@ GLenum glxewContextInit (GLXEW_CONTEXT_ARG_DEF_LIST)
/* initialize core GLX 1.2 */
if (_glewInit_GLX_VERSION_1_2(GLEW_CONTEXT_ARG_VAR_INIT)) return GLEW_ERROR_GLX_VERSION_11_ONLY;
/* initialize flags */
CONST_CAST(GLXEW_VERSION_1_0) = GL_TRUE;
CONST_CAST(GLXEW_VERSION_1_1) = GL_TRUE;
CONST_CAST(GLXEW_VERSION_1_2) = GL_TRUE;
CONST_CAST(GLXEW_VERSION_1_3) = GL_TRUE;
CONST_CAST(GLXEW_VERSION_1_4) = GL_TRUE;
GLXEW_VERSION_1_0 = GL_TRUE;
GLXEW_VERSION_1_1 = GL_TRUE;
GLXEW_VERSION_1_2 = GL_TRUE;
GLXEW_VERSION_1_3 = GL_TRUE;
GLXEW_VERSION_1_4 = GL_TRUE;
/* query GLX version */
glXQueryVersion(glXGetCurrentDisplay(), &major, &minor);
if (major == 1 && minor <= 3)
......@@ -32,11 +32,11 @@ GLenum glxewContextInit (GLXEW_CONTEXT_ARG_DEF_LIST)
switch (minor)
{
case 3:
CONST_CAST(GLXEW_VERSION_1_4) = GL_FALSE;
GLXEW_VERSION_1_4 = GL_FALSE;
break;
case 2:
CONST_CAST(GLXEW_VERSION_1_4) = GL_FALSE;
CONST_CAST(GLXEW_VERSION_1_3) = GL_FALSE;
GLXEW_VERSION_1_4 = GL_FALSE;
GLXEW_VERSION_1_3 = GL_FALSE;
break;
default:
return GLEW_ERROR_GLX_VERSION_11_ONLY;
......
......@@ -168,13 +168,13 @@ main (int argc, char** argv)
fprintf(file, "OpenGL renderer string: %s\n", glGetString(GL_RENDERER));
fprintf(file, "OpenGL version string: %s\n", glGetString(GL_VERSION));
fprintf(file, "OpenGL extensions (GL_): \n");
PrintExtensions((char*)glGetString(GL_EXTENSIONS));
PrintExtensions((const char*)glGetString(GL_EXTENSIONS));
#ifndef GLEW_NO_GLU
/* GLU extensions */
fprintf(file, "GLU version string: %s\n", gluGetString(GLU_VERSION));
fprintf(file, "GLU extensions (GLU_): \n");
PrintExtensions((char*)gluGetString(GLU_EXTENSIONS));
PrintExtensions((const char*)gluGetString(GLU_EXTENSIONS));
#endif
/* ---------------------------------------------------------------------- */
......@@ -185,8 +185,8 @@ main (int argc, char** argv)
{
fprintf(file, "WGL extensions (WGL_): \n");
PrintExtensions(wglGetExtensionsStringARB ?
(char*)wglGetExtensionsStringARB(ctx.dc) :
(char*)wglGetExtensionsStringEXT());
(const char*)wglGetExtensionsStringARB(ctx.dc) :
(const char*)wglGetExtensionsStringEXT());
}
#elif defined(__APPLE__) && !defined(GLEW_APPLE_GLX)
......
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