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glx/dri2: Enable GLX_ARB_create_context_robustness

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If the driver supports __DRI2_ROBUSTNESS, then enable
GLX_ARB_create_cotnext_robustness as well.  If robustness values are
passed to glXCreateContextAttribsARB and the driver doesn't support
__DRI2_ROBUSTNESS, existing drivers will already generate the correct
error values (so that the correct GLX errors are generated).

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
This commit is contained in:
Ian Romanick 2012-07-04 15:21:09 -07:00 committed by Keith Packard
parent 90aa2486e3
commit ed6daa15a7
1 changed files with 58 additions and 3 deletions
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61
glx/glxdri2.c
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@ -59,6 +59,16 @@ typedef struct __GLXDRIscreen __GLXDRIscreen;
typedef struct __GLXDRIcontext __GLXDRIcontext;
typedef struct __GLXDRIdrawable __GLXDRIdrawable;
#ifdef __DRI2_ROBUSTNESS
#define ALL_DRI_CTX_FLAGS (__DRI_CTX_FLAG_DEBUG \
| __DRI_CTX_FLAG_FORWARD_COMPATIBLE \
| __DRI_CTX_FLAG_ROBUST_BUFFER_ACCESS)
#else
#define ALL_DRI_CTX_FLAGS (__DRI_CTX_FLAG_DEBUG \
| __DRI_CTX_FLAG_FORWARD_COMPATIBLE)
#endif
struct __GLXDRIscreen {
__GLXscreen base;
__DRIscreen *driScreen;
@ -381,7 +391,7 @@ __glXDRIscreenDestroy(__GLXscreen * baseScreen)
static Bool
dri2_convert_glx_attribs(unsigned num_attribs, const uint32_t *attribs,
unsigned *major_ver, unsigned *minor_ver,
uint32_t *flags, int *api, unsigned *error)
uint32_t *flags, int *api, int *reset, unsigned *error)
{
unsigned i;
@ -395,6 +405,11 @@ dri2_convert_glx_attribs(unsigned num_attribs, const uint32_t *attribs,
*major_ver = 1;
*minor_ver = 0;
#ifdef __DRI2_ROBUSTNESS
*reset = __DRI_CTX_RESET_NO_NOTIFICATION;
#else
(void) reset;
#endif
for (i = 0; i < num_attribs; i++) {
switch (attribs[i * 2]) {
@ -425,6 +440,26 @@ dri2_convert_glx_attribs(unsigned num_attribs, const uint32_t *attribs,
return False;
}
break;
#ifdef __DRI2_ROBUSTNESS
case GLX_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB:
if (screen->dri2->base.version >= 4) {
*error = BadValue;
return False;
}
switch (attribs[i * 2 + 1]) {
case GLX_NO_RESET_NOTIFICATION_ARB:
*reset = __DRI_CTX_RESET_NO_NOTIFICATION;
break;
case GLX_LOSE_CONTEXT_ON_RESET_ARB:
*reset = __DRI_CTX_RESET_LOSE_CONTEXT;
break;
default:
*error = BadValue;
return False;
}
break;
#endif
default:
/* If an unknown attribute is received, fail.
*/
@ -435,7 +470,7 @@ dri2_convert_glx_attribs(unsigned num_attribs, const uint32_t *attribs,
/* Unknown flag value.
*/
if (*flags & ~(__DRI_CTX_FLAG_DEBUG | __DRI_CTX_FLAG_FORWARD_COMPATIBLE)) {
if ((*flags & ~ALL_DRI_CTX_FLAGS) != 0) {
*error = BadValue;
return False;
}
@ -473,12 +508,14 @@ create_driver_context(__GLXDRIcontext * context,
unsigned major_ver;
unsigned minor_ver;
uint32_t flags;
int reset;
int api;
if (num_attribs != 0) {
if (!dri2_convert_glx_attribs(num_attribs, attribs,
&major_ver, &minor_ver,
&flags, &api, (unsigned *) error))
&flags, &api, &reset,
(unsigned *) error))
return NULL;
ctx_attribs[num_ctx_attribs++] = __DRI_CTX_ATTRIB_MAJOR_VERSION;
@ -494,6 +531,14 @@ create_driver_context(__GLXDRIcontext * context,
*/
ctx_attribs[num_ctx_attribs++] = flags;
}
#ifdef __DRI2_ROBUSTNESS
if (reset != __DRI_CTX_NO_RESET_NOTIFICATION) {
ctx_attribs[num_ctx_attribs++] =
__DRI_CTX_ATTRIB_RESET_NOTIFICATION;
ctx_attribs[num_ctx_attribs++] = reset;
}
#endif
}
context->driContext =
@ -857,6 +902,16 @@ initializeExtensions(__GLXDRIscreen * screen)
}
#endif
#ifdef __DRI2_ROBUSTNESS
if (strcmp(extensions[i]->name, __DRI2_ROBUSTNESS) == 0 &&
screen->dri2->base.version >= 3) {
__glXEnableExtension(screen->glx_enable_bits,
"GLX_ARB_create_context_robustness");
LogMessage(X_INFO,
"AIGLX: enabled GLX_ARB_create_context_robustness\n");
}
#endif
/* Ignore unknown extensions */
}
}