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opengl32/tests: Only use functions if they are implemented.

This commit is contained in:
Paul Vriens 2008-02-11 17:22:32 +01:00 committed by Alexandre Julliard
parent e2539cb9e5
commit 82cbbbdb46
1 changed files with 19 additions and 0 deletions
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19
dlls/opengl32/tests/opengl.c
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@ -236,6 +236,12 @@ static void test_colorbits(HDC hdc)
int res;
int iPixelFormat = 0;
if (!pwglChoosePixelFormatARB)
{
skip("wglChoosePixelFormatARB is not available\n");
return;
}
/* We need a pixel format with at least one bit of alpha */
res = pwglChoosePixelFormatARB(hdc, iAttribs, NULL, 1, &iPixelFormat, &nFormats);
if(res == FALSE || nFormats == 0)
@ -264,6 +270,12 @@ static void test_gdi_dbuf(HDC hdc)
int iPixelFormat;
int res;
if (!pwglGetPixelFormatAttribivARB)
{
skip("wglGetPixelFormatAttribivARB is not available\n");
return;
}
nFormats = DescribePixelFormat(hdc, 0, 0, NULL);
for(iPixelFormat = 1;iPixelFormat <= nFormats;iPixelFormat++)
{
@ -383,6 +395,13 @@ START_TEST(opengl)
test_colorbits(hdc);
test_gdi_dbuf(hdc);
if (!pwglGetExtensionsStringARB)
{
skip("wglGetExtensionsStringARB is not available\n");
DestroyWindow(hwnd);
return;
}
wgl_extensions = pwglGetExtensionsStringARB(hdc);
if(wgl_extensions == NULL) skip("Skipping opengl32 tests because this OpenGL implementation doesn't support WGL extensions!\n");