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/**************************************************************************
*
* Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
#ifndef BRW_SCREEN_H
#define BRW_SCREEN_H
#include "pipe/p_state.h"
#include "pipe/p_screen.h"
#include "brw_reg.h"
#include "brw_structs.h"
struct brw_winsys_screen;
/**
* Subclass of pipe_screen
*/
struct brw_screen
{
struct pipe_screen base;
struct brw_chipset chipset;
struct brw_winsys_screen *sws;
};
/**
* Subclass of pipe_transfer
*/
struct brw_transfer
{
struct pipe_transfer base;
unsigned offset;
};
struct brw_buffer
{
struct pipe_buffer base;
/* One of either bo or user_buffer will be non-null, depending on
* whether this is a hardware or user buffer.
*/
struct brw_winsys_buffer *bo;
void *user_buffer;
/* Mapped pointer??
*/
void *ptr;
};
#define BRW_TILING_NONE 0
#define BRW_TILING_Y 1
#define BRW_TILING_X 2
union brw_surface_id {
struct {
unsigned face:3;
unsigned zslice:13;
unsigned level:16;
} bits;
unsigned value;
};
struct brw_surface
{
struct pipe_surface base;
union brw_surface_id id;
unsigned cpp;
unsigned pitch;
unsigned draw_offset;
unsigned tiling;
struct brw_surface_state ss;
struct brw_winsys_buffer *bo;
struct brw_surface *next, *prev;
};
struct brw_texture
{
struct pipe_texture base;
struct brw_winsys_buffer *bo;
struct brw_surface_state ss;
unsigned *image_offset[PIPE_MAX_TEXTURE_LEVELS];
unsigned nr_images[PIPE_MAX_TEXTURE_LEVELS];
unsigned level_offset[PIPE_MAX_TEXTURE_LEVELS];
boolean compressed;
unsigned brw_target;
unsigned pitch;
unsigned tiling;
unsigned cpp;
unsigned total_height;
struct brw_surface views[2];
};
/*
* Cast wrappers
*/
static INLINE struct brw_screen *
brw_screen(struct pipe_screen *pscreen)
{
return (struct brw_screen *) pscreen;
}
static INLINE struct brw_transfer *
brw_transfer(struct pipe_transfer *transfer)
{
return (struct brw_transfer *)transfer;
}
static INLINE struct brw_surface *
brw_surface(struct pipe_surface *surface)
{
return (struct brw_surface *)surface;
}
static INLINE struct brw_buffer *
brw_buffer(struct pipe_buffer *buffer)
{
return (struct brw_buffer *)buffer;
}
static INLINE struct brw_texture *
brw_texture(struct pipe_texture *texture)
{
return (struct brw_texture *)texture;
}
/* Pipe buffer helpers
*/
static INLINE boolean
brw_buffer_is_user_buffer( const struct pipe_buffer *buf )
{
return ((const struct brw_buffer *)buf)->user_buffer != NULL;
}
unsigned
brw_surface_pitch( const struct pipe_surface *surface );
/***********************************************************************
* Internal functions
*/
GLboolean brw_texture_layout(struct brw_screen *brw_screen,
struct brw_texture *tex );
void brw_update_texture( struct brw_screen *brw_screen,
struct brw_texture *tex );
void brw_screen_tex_init( struct brw_screen *brw_screen );
void brw_screen_tex_surface_init( struct brw_screen *brw_screen );
void brw_screen_buffer_init(struct brw_screen *brw_screen);
boolean brw_is_texture_referenced_by_bo( struct brw_screen *brw_screen,
struct pipe_texture *texture,
unsigned face,
unsigned level,
struct brw_winsys_buffer *bo );
boolean brw_is_buffer_referenced_by_bo( struct brw_screen *brw_screen,
struct pipe_buffer *buffer,
struct brw_winsys_buffer *bo );
#endif /* BRW_SCREEN_H */
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