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Hard-code the client-side maximum GL version. It turns out that there are

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some flaws in the calculation code when the highest version listed in
known_gl_extensions is supported.  This code would also have some problems
with some of the new features (that don't have an associated extension) on
GL 2.0.
This commit is contained in:
Ian Romanick 2005-03-17 01:36:24 +00:00
parent c1aa3d1e6f
commit 9eae0b9f19
1 changed files with 2 additions and 24 deletions
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26
src/glx/x11/glxextensions.c
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@ -266,8 +266,8 @@ static unsigned char direct_glx_support[8];
/**
* Highest core GL version that can be supported for indirect rendering.
*/
static unsigned gl_major = 0;
static unsigned gl_minor = 0;
static const unsigned gl_major = 1;
static const unsigned gl_minor = 4;
/* client extensions string */
static const char * __glXGLXClientExtensions = NULL;
@ -386,11 +386,8 @@ __glXScrEnableExtension( __GLXscreenConfigs *psc, const char * name )
static void
__glXExtensionsCtr( void )
{
static const char major_table[32] = { 1, 1, 1, 1, 1, 1, 2, };
static const char minor_table[32] = { 0, 1, 2, 3, 4, 5, 0, };
unsigned i;
static GLboolean ext_list_first_time = GL_TRUE;
unsigned full_support = ~0;
if ( ext_list_first_time ) {
@ -430,31 +427,12 @@ __glXExtensionsCtr( void )
if ( known_gl_extensions[i].client_support ) {
SET_BIT( client_gl_support, bit );
}
else if ( known_gl_extensions[i].version_major != 0 ) {
/* If an extension that is required for some core GL version is
* not supported, clear the bit for that core GL version as well.
*/
unsigned ver_bit = (6 * (known_gl_extensions[i].version_major - 1))
+ (known_gl_extensions[i].version_minor);
full_support &= ~(1U << ver_bit);
}
if ( known_gl_extensions[i].client_only ) {
SET_BIT( client_gl_only, bit );
}
}
/* Determine the lowest unsupported core GL version. The version before
* that is, therefore, the highest supported core GL version.
*/
for ( i = 0 ; (full_support & (1 << i)) != 0 ; i++ )
/* empty */ ;
i--;
gl_major = major_table[i];
gl_minor = minor_table[i];
#if 0
fprintf( stderr, "[%s:%u] Maximum client library version: %u.%u\n",
__func__, __LINE__, gl_major, gl_minor );