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mesa: Implement proper tracking logic for glGetGraphicsResetStatusARB

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Drivers still have to implement dd_function_table::GetGraphicsResetStatus.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
This commit is contained in:
Ian Romanick 2012-09-05 22:31:59 -07:00
parent a6eb04c3d8
commit 916bc4491a
1 changed files with 43 additions and 4 deletions
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47
src/mesa/main/getstring.c
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@ -23,7 +23,7 @@
*/
#include <stdbool.h>
#include "glheader.h"
#include "context.h"
#include "get.h"
@ -307,9 +307,48 @@ _mesa_GetGraphicsResetStatusARB( void )
GET_CURRENT_CONTEXT(ctx);
GLenum status = GL_NO_ERROR;
if (MESA_VERBOSE & VERBOSE_API)
_mesa_debug(ctx, "glGetGraphicsResetStatusARB"
"(always returns GL_NO_ERROR)\n");
/* The ARB_robustness specification says:
*
* "If the reset notification behavior is NO_RESET_NOTIFICATION_ARB,
* then the implementation will never deliver notification of reset
* events, and GetGraphicsResetStatusARB will always return NO_ERROR."
*/
if (ctx->Const.ResetStrategy == GL_NO_RESET_NOTIFICATION_ARB) {
if (MESA_VERBOSE & VERBOSE_API)
_mesa_debug(ctx,
"glGetGraphicsResetStatusARB always returns GL_NO_ERROR "
"because reset notifictation was not requested at context "
"creation.\n");
return GL_NO_ERROR;
}
if (ctx->Driver.GetGraphicsResetStatus) {
/* Query the reset status of this context from the driver core.
*/
status = ctx->Driver.GetGraphicsResetStatus(ctx);
_glthread_LOCK_MUTEX(ctx->Shared->Mutex);
/* If this context has not been affected by a GPU reset, check to see if
* some other context in the share group has been affected by a reset.
* If another context saw a reset but this context did not, assume that
* this context was not guilty.
*/
if (status != GL_NO_ERROR) {
ctx->Shared->ShareGroupReset = true;
} else if (ctx->Shared->ShareGroupReset && !ctx->ShareGroupReset) {
status = GL_INNOCENT_CONTEXT_RESET_ARB;
}
ctx->ShareGroupReset = ctx->Shared->ShareGroupReset;
_glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);
}
if (!ctx->Driver.GetGraphicsResetStatus && (MESA_VERBOSE & VERBOSE_API))
_mesa_debug(ctx,
"glGetGraphicsResetStatusARB always returns GL_NO_ERROR "
"because the driver doesn't track reset status.\n");
return status;
}