/**
* \file
* Generic code for buffers.
- *
- * Behind a pipe buffle handle there can be DMA buffers, client (or user)
- * buffers, regular malloced buffers, etc. This file provides an abstract base
- * buffer handle that allows the driver to cope with all those kinds of buffers
+ *
+ * Behind a pipe buffle handle there can be DMA buffers, client (or user)
+ * buffers, regular malloced buffers, etc. This file provides an abstract base
+ * buffer handle that allows the driver to cope with all those kinds of buffers
* in a more flexible way.
- *
+ *
* There is no obligation of a winsys driver to use this library. And a pipe
* driver should be completly agnostic about it.
- *
+ *
* \author Jose Fonseca <jfonseca@vmware.com>
*/
PB_USAGE_DONTBLOCK | \
PB_USAGE_UNSYNCHRONIZED)
-#define PB_USAGE_CPU_READ_WRITE \
- ( PB_USAGE_CPU_READ | PB_USAGE_CPU_WRITE )
-#define PB_USAGE_GPU_READ_WRITE \
- ( PB_USAGE_GPU_READ | PB_USAGE_GPU_WRITE )
-#define PB_USAGE_WRITE \
- ( PB_USAGE_CPU_WRITE | PB_USAGE_GPU_WRITE )
+#define PB_USAGE_CPU_READ_WRITE (PB_USAGE_CPU_READ | PB_USAGE_CPU_WRITE)
+#define PB_USAGE_GPU_READ_WRITE (PB_USAGE_GPU_READ | PB_USAGE_GPU_WRITE)
+#define PB_USAGE_WRITE (PB_USAGE_CPU_WRITE | PB_USAGE_GPU_WRITE)
+
/**
* Buffer description.
- *
+ *
* Used when allocating the buffer.
*/
struct pb_desc
/**
* Base class for all pb_* buffers.
*/
-struct pb_buffer
+struct pb_buffer
{
struct pipe_reference reference;
unsigned alignment;
/**
* Pointer to the virtual function table.
*
- * Avoid accessing this table directly. Use the inline functions below
- * instead to avoid mistakes.
+ * Avoid accessing this table directly. Use the inline functions below
+ * instead to avoid mistakes.
*/
const struct pb_vtbl *vtbl;
};
/**
* Virtual function table for the buffer storage operations.
- *
+ *
* Note that creation is not done through this table.
*/
struct pb_vtbl
{
- void (*destroy)( struct pb_buffer *buf );
+ void (*destroy)(struct pb_buffer *buf);
- /**
+ /**
* Map the entire data store of a buffer object into the client's address.
- * flags is bitmask of PB_USAGE_CPU_READ/WRITE.
+ * flags is bitmask of PB_USAGE_CPU_READ/WRITE.
*/
- void *(*map)( struct pb_buffer *buf,
- enum pb_usage_flags flags, void *flush_ctx );
-
- void (*unmap)( struct pb_buffer *buf );
+ void *(*map)(struct pb_buffer *buf,
+ enum pb_usage_flags flags, void *flush_ctx);
+
+ void (*unmap)(struct pb_buffer *buf);
- enum pipe_error (*validate)( struct pb_buffer *buf,
- struct pb_validate *vl,
- enum pb_usage_flags flags );
+ enum pipe_error (*validate)(struct pb_buffer *buf,
+ struct pb_validate *vl,
+ enum pb_usage_flags flags);
- void (*fence)( struct pb_buffer *buf,
- struct pipe_fence_handle *fence );
+ void (*fence)(struct pb_buffer *buf,
+ struct pipe_fence_handle *fence);
/**
* Get the base buffer and the offset.
- *
+ *
* A buffer can be subdivided in smaller buffers. This method should return
* the underlaying buffer, and the relative offset.
- *
- * Buffers without an underlaying base buffer should return themselves, with
+ *
+ * Buffers without an underlaying base buffer should return themselves, with
* a zero offset.
- *
+ *
* Note that this will increase the reference count of the base buffer.
*/
- void (*get_base_buffer)( struct pb_buffer *buf,
- struct pb_buffer **base_buf,
- pb_size *offset );
-
+ void (*get_base_buffer)(struct pb_buffer *buf,
+ struct pb_buffer **base_buf,
+ pb_size *offset);
};
/* Accessor functions for pb->vtbl:
*/
static inline void *
-pb_map(struct pb_buffer *buf,
- enum pb_usage_flags flags, void *flush_ctx)
+pb_map(struct pb_buffer *buf, enum pb_usage_flags flags, void *flush_ctx)
{
assert(buf);
if (!buf)
}
-static inline void
+static inline void
pb_unmap(struct pb_buffer *buf)
{
assert(buf);
static inline void
-pb_get_base_buffer( struct pb_buffer *buf,
- struct pb_buffer **base_buf,
- pb_size *offset )
+pb_get_base_buffer(struct pb_buffer *buf,
+ struct pb_buffer **base_buf,
+ pb_size *offset)
{
assert(buf);
if (!buf) {
}
-static inline enum pipe_error
+static inline enum pipe_error
pb_validate(struct pb_buffer *buf, struct pb_validate *vl,
enum pb_usage_flags flags)
{
}
-static inline void
+static inline void
pb_fence(struct pb_buffer *buf, struct pipe_fence_handle *fence)
{
assert(buf);
}
-static inline void
+static inline void
pb_destroy(struct pb_buffer *buf)
{
assert(buf);
buf->vtbl->destroy(buf);
}
+
static inline void
pb_reference(struct pb_buffer **dst,
struct pb_buffer *src)
struct pb_buffer *old = *dst;
if (pipe_reference(&(*dst)->reference, &src->reference))
- pb_destroy( old );
+ pb_destroy(old);
*dst = src;
}
static inline boolean
pb_check_alignment(pb_size requested, pb_size provided)
{
- if(!requested)
+ if (!requested)
return TRUE;
- if(requested > provided)
+ if (requested > provided)
return FALSE;
- if(provided % requested != 0)
+ if (provided % requested != 0)
return FALSE;
return TRUE;
}
/**
- * Malloc-based buffer to store data that can't be used by the graphics
+ * Malloc-based buffer to store data that can't be used by the graphics
* hardware.
*/
struct pb_buffer *
-pb_malloc_buffer_create(pb_size size,
+pb_malloc_buffer_create(pb_size size,
const struct pb_desc *desc);