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ARGB visual is only picked if NSOpenGLPFAAlphaSize is specified in the pixel format.

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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/back/trunk@36821 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Ivan Vučica 2013-07-03 16:06:38 +00:00
parent 774b5092bd
commit 9a67894038
3 changed files with 24 additions and 6 deletions
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7
ChangeLog
View file

@ -1,3 +1,10 @@
2013-07-03 Ivan Vucica <ivan@vucica.net>
* Source/x11/XGGLFormat.m:
* Headers/x11/XGOpenGL.h:
ARGB visual is only picked if NSOpenGLPFAAlphaSize is
specified in the pixel format.
2013-07-03 Ivan Vucica <ivan@vucica.net>
* Source/x11/XGGLContext.m:

9
Headers/x11/XGOpenGL.h
View file

@ -58,9 +58,14 @@
{
Display * display;
long int glxminorversion;
GLXFBConfig *fbconfig; int pickedFBConfig;
XVisualInfo *visualinfo;
GLXFBConfig *fbconfig;
int pickedFBConfig;
int configurationCount;
BOOL shouldRequestARGBVisual;
XVisualInfo *visualinfo;
}
+ (int) glxMinorVersion;

10
Source/x11/XGGLFormat.m
View file

@ -109,6 +109,8 @@
NSOpenGLPixelFormatAttribute *ptr = pixelFormatAttributes;
NSMutableData *data = [NSMutableData data];
shouldRequestARGBVisual = NO;
#define append(a, b) \
do \
{ \
@ -180,6 +182,8 @@ do \
{
ptr++;
append(GLX_ALPHA_SIZE, *ptr);
if (*ptr > 0)
shouldRequestARGBVisual = YES;
break;
}
case NSOpenGLPFADepthSize:
@ -348,15 +352,17 @@ do \
[glxAttributes mutableBytes],
&configurationCount);
#if defined(XRENDER) && 0
#if defined(XRENDER)
int i;
for (i = 0; i < configurationCount; i++)
{
XVisualInfo * vinfo = glXGetVisualFromFBConfig(display, fbconfig[i]);
XRenderPictFormat* pictFormat = XRenderFindVisualFormat (display, vinfo->visual);
if (NULL != pictFormat
if ((NULL != pictFormat
&& (pictFormat->type == PictTypeDirect)
&& (pictFormat->direct.alphaMask))
||
!shouldRequestARGBVisual)
{
pickedFBConfig = i;
visualinfo = vinfo;