pb_winsys.c File Reference

Implementation of client buffer (also designated as "user buffers"), which are just state-tracker owned data masqueraded as buffers. More...

Include dependency graph for pb_winsys.c:

Go to the source code of this file.

Data Structures
struct	pb_user_buffer
	User buffers are special buffers that initially reference memory held by the user but which may if necessary copy that memory into device memory behind the scenes, for submission to hardware. More...
Functions
static struct pb_user_buffer *	pb_user_buffer (struct pb_buffer *buf)
static void	pb_user_buffer_destroy (struct pb_buffer *buf)
static void *	pb_user_buffer_map (struct pb_buffer *buf, unsigned flags)
static void	pb_user_buffer_unmap (struct pb_buffer *buf)
static void	pb_user_buffer_get_base_buffer (struct pb_buffer *buf, struct pb_buffer **base_buf, unsigned *offset)
static struct pipe_buffer *	pb_winsys_user_buffer_create (struct pipe_winsys *winsys, void *data, unsigned bytes)
static void *	pb_winsys_buffer_map (struct pipe_winsys *winsys, struct pipe_buffer *buf, unsigned flags)
static void	pb_winsys_buffer_unmap (struct pipe_winsys *winsys, struct pipe_buffer *buf)
static void	pb_winsys_buffer_destroy (struct pipe_winsys *winsys, struct pipe_buffer *buf)
void	pb_init_winsys (struct pipe_winsys *winsys)
Variables
struct pb_vtbl	pb_user_buffer_vtbl

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Detailed Description

Implementation of client buffer (also designated as "user buffers"), which are just state-tracker owned data masqueraded as buffers.

Author:

José Fonseca <jrfonseca@tungstengraphics.com>

Definition in file pb_winsys.c.

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Function Documentation

void pb_init_winsys

(

struct pipe_winsys *

winsys

)

Definition at line 164 of file pb_winsys.c.

References pipe_winsys::buffer_destroy, pipe_winsys::buffer_map, pipe_winsys::buffer_unmap, pb_winsys_buffer_destroy(), pb_winsys_buffer_map(), pb_winsys_buffer_unmap(), pb_winsys_user_buffer_create(), and pipe_winsys::user_buffer_create.

{
   winsys->user_buffer_create = pb_winsys_user_buffer_create;
   winsys->buffer_map = pb_winsys_buffer_map;
   winsys->buffer_unmap = pb_winsys_buffer_unmap;
   winsys->buffer_destroy = pb_winsys_buffer_destroy;
}

static struct pb_user_buffer* pb_user_buffer

(

struct pb_buffer *

buf

)

[static, read]

Definition at line 63 of file pb_winsys.c.

References assert, pb_user_buffer_vtbl, and pb_buffer::vtbl.

{
   assert(buf);
   assert(buf->vtbl == &pb_user_buffer_vtbl);
   return (struct pb_user_buffer *)buf;
}

static void pb_user_buffer_destroy

(

struct pb_buffer *

buf

)

[static]

Definition at line 72 of file pb_winsys.c.

References assert, and FREE.

{
   assert(buf);
   FREE(buf);
}

static void pb_user_buffer_get_base_buffer	(	struct pb_buffer *	buf,
		struct pb_buffer **	base_buf,
		unsigned *	offset
	)			[static]

Definition at line 95 of file pb_winsys.c.

{
   *base_buf = buf;
   *offset = 0;
}

static void* pb_user_buffer_map	(	struct pb_buffer *	buf,
		unsigned	flags
	)			[static]

Definition at line 80 of file pb_winsys.c.

References pb_user_buffer::data, and pb_user_buffer().

{
   return pb_user_buffer(buf)->data;
}

static void pb_user_buffer_unmap

(

struct pb_buffer *

buf

)

[static]

Definition at line 88 of file pb_winsys.c.

{
   /* No-op */
}

static void pb_winsys_buffer_destroy	(	struct pipe_winsys *	winsys,
		struct pipe_buffer *	buf
	)			[static]

Definition at line 155 of file pb_winsys.c.

References pb_buffer(), and pb_destroy().

{
   (void)winsys;
   pb_destroy(pb_buffer(buf));
}

static void* pb_winsys_buffer_map	(	struct pipe_winsys *	winsys,
		struct pipe_buffer *	buf,
		unsigned	flags
	)			[static]

Definition at line 136 of file pb_winsys.c.

References pb_buffer(), and pb_map().

{
   (void)winsys;
   return pb_map(pb_buffer(buf), flags);
}

static void pb_winsys_buffer_unmap	(	struct pipe_winsys *	winsys,
		struct pipe_buffer *	buf
	)			[static]

Definition at line 146 of file pb_winsys.c.

References pb_buffer(), and pb_unmap().

{
   (void)winsys;
   pb_unmap(pb_buffer(buf));
}

static struct pipe_buffer* pb_winsys_user_buffer_create	(	struct pipe_winsys *	winsys,
		void *	data,
		unsigned	bytes
	)			[static, read]

Definition at line 114 of file pb_winsys.c.

References pipe_buffer::alignment, pb_buffer::base, pb_user_buffer::base, CALLOC_STRUCT, pb_user_buffer::data, pipe_buffer::refcount, pipe_buffer::size, pipe_buffer::usage, and pb_buffer::vtbl.

{
   struct pb_user_buffer *buf = CALLOC_STRUCT(pb_user_buffer);

   if(!buf)
      return NULL;
   
   buf->base.base.refcount = 1;
   buf->base.base.size = bytes;
   buf->base.base.alignment = 0;
   buf->base.base.usage = 0;

   buf->base.vtbl = &pb_user_buffer_vtbl;   
   buf->data = data;
   
   return &buf->base.base;
}

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Variable Documentation

struct pb_vtbl pb_user_buffer_vtbl [read]

Initial value:

 {
      pb_user_buffer_destroy,
      pb_user_buffer_map,
      pb_user_buffer_unmap,
      pb_user_buffer_get_base_buffer
}

Definition at line 105 of file pb_winsys.c.

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