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/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/i810/i830_dri.h,v 1.2 2001/10/28 03:33:33 tsi Exp $ */
#ifndef _I830_DRI_H
#define _I830_DRI_H
#include <xf86drm.h>
#include <xf86drmI830.h>
#define I830_MAX_DRAWABLES 256
#define I830_MAJOR_VERSION 1
#define I830_MINOR_VERSION 0
#define I830_PATCHLEVEL 0
#define I830_REG_SIZE 0x80000
typedef struct _I830DRIRec {
drmHandle regs;
drmSize regsSize;
drmAddress regsMap;
drmSize backbufferSize;
drmHandle backbuffer;
drmSize depthbufferSize;
drmHandle depthbuffer;
drmHandle textures;
int textureSize;
drmHandle agp_buffers;
drmSize agp_buf_size;
int deviceID;
int width;
int height;
int mem;
int cpp;
int bitsPerPixel;
int fbOffset;
int fbStride;
int backOffset;
int depthOffset;
int auxPitch;
int auxPitchBits;
int logTextureGranularity;
int textureOffset;
/* For non-dma direct rendering.
*/
int ringOffset;
int ringSize;
drmBufMapPtr drmBufs;
int irq;
int sarea_priv_offset;
} I830DRIRec, *I830DRIPtr;
typedef struct {
/* Nothing here yet */
int dummy;
} I830ConfigPrivRec, *I830ConfigPrivPtr;
typedef struct {
/* Nothing here yet */
int dummy;
} I830DRIContextRec, *I830DRIContextPtr;
/* Warning: If you change the SAREA structure you must change the kernel
* structure as well */
typedef struct _I830TexRegion {
unsigned char next, prev; /* indices to form a circular LRU */
unsigned char in_use; /* owned by a client, or free? */
int age; /* tracked by clients to update local LRU's */
} I830TexRegion;
typedef struct _I830SAREA {
unsigned int ContextState[I830_CTX_SETUP_SIZE];
unsigned int BufferState[I830_DEST_SETUP_SIZE];
unsigned int TexState[I830_TEXTURE_COUNT][I830_TEX_SETUP_SIZE];
unsigned int TexBlendState[I830_TEXBLEND_COUNT][I830_TEXBLEND_SIZE];
unsigned int TexBlendStateWordsUsed[I830_TEXBLEND_COUNT];
unsigned int Palette[2][256];
unsigned int dirty;
unsigned int nbox;
XF86DRIClipRectRec boxes[I830_NR_SAREA_CLIPRECTS];
/* Maintain an LRU of contiguous regions of texture space. If
* you think you own a region of texture memory, and it has an
* age different to the one you set, then you are mistaken and
* it has been stolen by another client. If global texAge
* hasn't changed, there is no need to walk the list.
*
* These regions can be used as a proxy for the fine-grained
* texture information of other clients - by maintaining them
* in the same lru which is used to age their own textures,
* clients have an approximate lru for the whole of global
* texture space, and can make informed decisions as to which
* areas to kick out. There is no need to choose whether to
* kick out your own texture or someone else's - simply eject
* them all in LRU order.
*/
I830TexRegion texList[I830_NR_TEX_REGIONS+1];
/* Last elt is sentinal */
int texAge; /* last time texture was uploaded */
int last_enqueue; /* last time a buffer was enqueued */
int last_dispatch; /* age of the most recently dispatched buffer */
int last_quiescent; /* */
int ctxOwner; /* last context to upload state */
int vertex_prim;
} I830SAREARec, *I830SAREAPtr;
#endif
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