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[client] egl: use new util_hasGLExt helper to check extensions

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We previously used strstr, which can be prone to false positives when
the name of one extension is a substring of another extension.

This commit creates the helper function util_hasGLExt, which asserts
that the substring found in extension list is bounded by either spaces
or the beginning/end of the string.
This commit is contained in:
Quantum
2021-05-13 16:36:01 -04:00
committed by Geoffrey McRae
parent edbd6f6ade
commit f9a9953071
8 changed files with 47 additions and 7 deletions
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5
client/displayservers/SDL/sdl.c
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@@ -35,6 +35,7 @@ Place, Suite 330, Boston, MA 02111-1307 USA
#include "egl_dynprocs.h"
#include "common/types.h"
#include "common/debug.h"
#include "util.h"
struct SDLDSState
{
@@ -199,14 +200,14 @@ static EGLDisplay sdlGetEGLDisplay(void)
const char *early_exts = eglQueryString(NULL, EGL_EXTENSIONS);
if (strstr(early_exts, "EGL_KHR_platform_base") != NULL &&
if (util_hasGLExt(early_exts, "EGL_KHR_platform_base") &&
g_egl_dynProcs.eglGetPlatformDisplay)
{
DEBUG_INFO("Using eglGetPlatformDisplay");
return g_egl_dynProcs.eglGetPlatformDisplay(platform, native, NULL);
}
if (strstr(early_exts, "EGL_EXT_platform_base") != NULL &&
if (util_hasGLExt(early_exts, "EGL_EXT_platform_base") &&
g_egl_dynProcs.eglGetPlatformDisplayEXT)
{
DEBUG_INFO("Using eglGetPlatformDisplayEXT");