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dri_interface.h: Add new __DRI_USE_INVALIDATE extension

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The presence of this extension indicates to the DRI driver that the
loader will call invalidate in the __DRI2_FLUSH extension, whenever
the needs to query for new buffers.  This means that the DRI driver
can drop the polling in glViewport().
This commit is contained in:
Kristian Høgsberg
2010-05-11 09:09:30 -04:00
parent 1f6648418d
commit 97a6cbc6dd
1 changed files with 20 additions and 0 deletions
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20
include/GL/internal/dri_interface.h
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@@ -427,6 +427,26 @@ struct __DRIswrastLoaderExtensionRec {
char *data, void *loaderPrivate); char *data, void *loaderPrivate);
}; };
/**
* Invalidate loader extension. The presence of this extension
* indicates to the DRI driver that the loader will call invalidate in
* the __DRI2_FLUSH extension, whenever the needs to query for new
* buffers. This means that the DRI driver can drop the polling in
* glViewport().
*
* The extension doesn't provide any functionality, it's only use to
* indicate to the driver that it can use the new semantics. A DRI
* driver can use this to switch between the different semantics or
* just refuse to initialize if this extension isn't present.
*/
#define __DRI_USE_INVALIDATE "DRI_UseInvalidate"
#define __DRI_USE_INVALIDATE_VERSION 1
typedef struct __DRIuseInvalidateExtensionRec __DRIuseInvalidateExtension;
struct __DRIuseInvalidateExtensionRec {
__DRIextension base;
};
/** /**
* The remaining extensions describe driver extensions, immediately * The remaining extensions describe driver extensions, immediately
* available interfaces provided by the driver. To start using the * available interfaces provided by the driver. To start using the