Zengtudor/glew-cmake
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git-svn-id: https://glew.svn.sourceforge.net/svnroot/glew/trunk/glew@124 783a27ee-832a-0410-bc00-9f386506c6dd
This commit is contained in:
ikits 2003-09-15 16:53:02 +00:00
parent 0bdd4b122f
commit cb58541cd0
6 changed files with 28 additions and 52 deletions
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26
auto/src/glew_gl.c
View File

@ -5,23 +5,23 @@
* These functions implement the functionality required in this file.
*/
static int _glewStrLen (const char *s)
static GLuint _glewStrLen (const GLubyte *s)
{
int i=0;
GLuint i=0;
while (s+i != NULL && s[i] != '\0') i++;
return i;
}
static int _glewStrCLen (const char *s, char c)
static GLuint _glewStrCLen (const GLubyte *s, GLubyte c)
{
int i=0;
GLuint i=0;
while (s+i != NULL && s[i] != '\0' && s[i] != c) i++;
return i;
}
static int _glewStrSame (const char *a, const char *b, int n)
static GLboolean _glewStrSame (const GLubyte *a, const GLubyte *b, GLuint n)
{
int i=0;
GLuint i=0;
while (i < n && a+i != NULL && b+i != NULL && a[i] == b[i]) i++;
return i == n;
}
@ -34,14 +34,14 @@ static int _glewStrSame (const char *a, const char *b, int n)
*/
GLboolean glewGetExtension (const GLubyte *name)
{
char *p, *end;
int len = _glewStrLen(name);
p = (char*)glGetString(GL_EXTENSIONS);
GLubyte *p, *end;
GLuint len = _glewStrLen(name);
p = glGetString(GL_EXTENSIONS);
if (0 == p) return GL_FALSE;
end = p + _glewStrLen(p);
while (p < end)
{
int n = _glewStrCLen(p, ' ');
GLuint n = _glewStrCLen(p, ' ');
if (len == n && _glewStrSame(name, p, n)) return GL_TRUE;
p += n+1;
}
@ -52,10 +52,10 @@ GLboolean glewGetExtension (const GLubyte *name)
static GLuint _glewInit ()
{
char* s;
int i;
GLubyte* s;
GLuint i;
/* query opengl version */
s = (char*)glGetString(GL_VERSION);
s = glGetString(GL_VERSION);
if (!s) return GLEW_ERROR_NO_GL_VERSION;
i=_glewStrCLen(s, '.')+1;
if (s+i == NULL || s[i] < '1')

34
auto/src/glew_glx.c
View File

@ -3,30 +3,17 @@
#else /* _UNIX */
GLboolean glxewGetExtension (const char *name)
GLboolean glxewGetExtension (const GLubyte *name)
{
char *p, *end;
int len = _glewStrLen(name);
#if 1
GLubyte *p, *end;
GLuint len = _glewStrLen(name);
if (glXQueryExtensionsString == NULL || glXGetCurrentDisplay == NULL) return GL_FALSE;
p = (char*)glXQueryExtensionsString(glXGetCurrentDisplay(), DefaultScreen(glXGetCurrentDisplay()));
#else
/* Temporary fix to avoid using glXGetCurrentDisplay,
which crashes GLEW on some configurations. */
{
Display *dpy;
if (glXQueryExtensionsString == NULL) return GL_FALSE;
dpy = XOpenDisplay(NULL);
if (dpy == NULL) return GL_FALSE;
p = (char*)glXQueryExtensionsString(dpy, DefaultScreen(dpy));
XCloseDisplay(dpy);
}
#endif
p = (GLubyte*)glXQueryExtensionsString(glXGetCurrentDisplay(), DefaultScreen(glXGetCurrentDisplay()));
if (0 == p) return GL_FALSE;
end = p + _glewStrLen(p);
while (p < end)
{
int n = _glewStrCLen(p, ' ');
GLuint n = _glewStrCLen(p, ' ');
if (len == n && _glewStrSame(name, p, n)) return GL_TRUE;
p += n+1;
}
@ -39,18 +26,7 @@ static GLuint _glxewInit ()
/* initialize core GLX 1.2 */
if (_glewInit_GLX_VERSION_1_2()) return GLEW_ERROR_GLX_VERSION_11_ONLY;
/* query GLX version */
#if 1
glXQueryVersion(glXGetCurrentDisplay(), &major, &minor);
#else
/* Temporary fix to avoid using glXGetCurrentDisplay,
which crashes GLEW on some configurations. */
{
Display* dpy = XOpenDisplay(NULL);
if (dpy == NULL) return GLEW_ERROR_GLX_VERSION_11_ONLY;
glXQueryVersion(dpy, &major, &minor);
XCloseDisplay(dpy);
}
#endif
switch (minor)
{
case 4:

12
auto/src/glew_wgl.c
View File

@ -5,22 +5,22 @@
#ifdef _WIN32
GLboolean wglewGetExtension (const char *name)
GLboolean wglewGetExtension (const GLubyte *name)
{
char *p, *end;
int len = _glewStrLen(name);
GLubyte *p, *end;
GLuint len = _glewStrLen(name);
if (wglGetExtensionsStringARB == NULL)
if (wglGetExtensionsStringEXT == NULL)
return GL_FALSE;
else
p = (char*)wglGetExtensionsStringEXT();
p = (GLubyte*)wglGetExtensionsStringEXT();
else
p = (char*)wglGetExtensionsStringARB(wglGetCurrentDC());
p = (GLubyte*)wglGetExtensionsStringARB(wglGetCurrentDC());
if (0 == p) return GL_FALSE;
end = p + _glewStrLen(p);
while (p < end)
{
int n = _glewStrCLen(p, ' ');
GLuint n = _glewStrCLen(p, ' ');
if (len == n && _glewStrSame(name, p, n)) return GL_TRUE;
p += n+1;
}

4
auto/src/glewinfo_pre.c
View File

@ -38,7 +38,7 @@
static FILE* f;
static void glewPrintExt (const char* name, int defined)
static void glewPrintExt (const GLubyte* name, GLboolean defined)
{
unsigned int i;
fprintf(f, "\n%s:", name);
@ -49,7 +49,7 @@ static void glewPrintExt (const char* name, int defined)
fflush(f);
}
static void glewInfoFunc (const char* name, int undefined)
static void glewInfoFunc (const GLubyte* name, GLboolean undefined)
{
unsigned int i;
fprintf(f, " %s:", name);

2
auto/src/glxew_post.h
View File

@ -1,6 +1,6 @@
/* ------------------------------------------------------------------------ */
extern GLboolean glxewGetExtension (const char* name);
extern GLboolean glxewGetExtension (const GLubyte* name);
#ifdef __cplusplus
}

2
auto/src/wglew_post.h
View File

@ -1,6 +1,6 @@
/* ------------------------------------------------------------------------- */
GLEWAPI GLboolean wglewGetExtension (const char* name);
GLEWAPI GLboolean wglewGetExtension (const GLubyte* name);
#ifdef __cplusplus
}