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driver-gl: split out parse_gl_version function

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This splits out the GL version parser code from
cogl-driver-gl.c:_cogl_get_gl_version() so it can also be used for
parsing other gl version strings.

Reviewed-by: Neil Roberts <neil@linux.intel.com>

(cherry picked from commit 66c2e74b9d61669fb5b93cf9a31cc8659a601fdd)
This commit is contained in:
Robert Bragg 2012-09-26 22:00:14 +01:00
parent 2bcf38d126
commit 2438d70b38
1 changed files with 18 additions and 8 deletions
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22
cogl/driver/gl/gl/cogl-driver-gl.c
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@ -243,17 +243,13 @@ _cogl_driver_pixel_format_to_gl (CoglContext *context,
} }
static CoglBool static CoglBool
_cogl_get_gl_version (CoglContext *ctx, parse_gl_version (const char *version_string,
int *major_out, int *major_out,
int *minor_out) int *minor_out)
{ {
const char *version_string, *major_end, *minor_end; const char *major_end, *minor_end;
int major = 0, minor = 0; int major = 0, minor = 0;
/* Get the OpenGL version number */
if ((version_string = _cogl_context_get_gl_version (ctx)) == NULL)
return FALSE;
/* Extract the major number */ /* Extract the major number */
for (major_end = version_string; *major_end >= '0' for (major_end = version_string; *major_end >= '0'
&& *major_end <= '9'; major_end++) && *major_end <= '9'; major_end++)
@ -279,6 +275,20 @@ _cogl_get_gl_version (CoglContext *ctx,
return TRUE; return TRUE;
} }
static CoglBool
_cogl_get_gl_version (CoglContext *ctx,
int *major_out,
int *minor_out)
{
const char *version_string;
/* Get the OpenGL version number */
if ((version_string = _cogl_context_get_gl_version (ctx)) == NULL)
return FALSE;
return parse_gl_version (version_string, major_out, minor_out);
}
static CoglBool static CoglBool
check_gl_version (CoglContext *ctx, check_gl_version (CoglContext *ctx,
CoglError **error) CoglError **error)