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/****************************************************************************
*
* Copyright (C) 2005 - 2011 by Vivante Corp.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the license, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*****************************************************************************/
#ifndef __gc_hal_kernel_buffer_h_
#define __gc_hal_kernel_buffer_h_
#ifdef __cplusplus
extern "C" {
#endif
/******************************************************************************\
************************ Command Buffer and Event Objects **********************
\******************************************************************************/
/* The number of context buffers per user. */
#define gcdCONTEXT_BUFFER_COUNT 2
/* State delta record. */
typedef struct _gcsSTATE_DELTA_RECORD * gcsSTATE_DELTA_RECORD_PTR;
typedef struct _gcsSTATE_DELTA_RECORD
{
/* State address. */
gctUINT address;
/* State mask. */
gctUINT32 mask;
/* State data. */
gctUINT32 data;
}
gcsSTATE_DELTA_RECORD;
/* State delta. */
typedef struct _gcsSTATE_DELTA
{
/* For debugging: the number of delta in the order of creation. */
#if gcmIS_DEBUG(gcdDEBUG_CODE)
gctUINT num;
#endif
/* For dumping. */
#if gcdDUMP
gcoOS os;
#endif
/* Main state delta ID. Every time state delta structure gets reinitialized,
main ID is incremented. If main state ID overflows, all map entry IDs get
reinitialized to make sure there is no potential erroneous match after
the overflow.*/
gctUINT id;
/* The number of contexts pending modification by the delta. */
gctINT refCount;
/* Vertex element count for the delta buffer. */
gctUINT elementCount;
/* Number of states currently stored in the record array. */
gctUINT recordCount;
/* Record array; holds all modified states. */
gcsSTATE_DELTA_RECORD_PTR recordArray;
/* Map entry ID is used for map entry validation. If map entry ID does not
match the main state delta ID, the entry and the corresponding state are
considered not in use. */
gctUINT_PTR mapEntryID;
gctUINT mapEntryIDSize;
/* If the map entry ID matches the main state delta ID, index points to
the state record in the record array. */
gctUINT_PTR mapEntryIndex;
/* Previous and next state deltas. */
gcsSTATE_DELTA_PTR prev;
gcsSTATE_DELTA_PTR next;
}
gcsSTATE_DELTA;
/* Command buffer object. */
struct _gcoCMDBUF
{
/* The object. */
gcsOBJECT object;
/* Command buffer entry and exit pipes. */
gcePIPE_SELECT entryPipe;
gcePIPE_SELECT exitPipe;
/* Feature usage flags. */
gctBOOL using2D;
gctBOOL using3D;
gctBOOL usingFilterBlit;
gctBOOL usingPalette;
/* Physical address of command buffer. */
gctPHYS_ADDR physical;
/* Logical address of command buffer. */
gctPOINTER logical;
/* Number of bytes in command buffer. */
gctSIZE_T bytes;
/* Start offset into the command buffer. */
gctUINT32 startOffset;
/* Current offset into the command buffer. */
gctUINT32 offset;
/* Number of free bytes in command buffer. */
gctSIZE_T free;
/* Location of the last reserved area. */
gctPOINTER lastReserve;
gctUINT lastOffset;
#if gcdSECURE_USER
/* Hint array for the current command buffer. */
gctUINT hintArraySize;
gctUINT32_PTR hintArray;
gctUINT32_PTR hintArrayTail;
#endif
#if gcmIS_DEBUG(gcdDEBUG_CODE)
/* Last load state command location and hardware address. */
gctUINT32_PTR lastLoadStatePtr;
gctUINT32 lastLoadStateAddress;
gctUINT32 lastLoadStateCount;
#endif
};
typedef struct _gcsQUEUE
{
/* Pointer to next gcsQUEUE structure. */
gcsQUEUE_PTR next;
/* Event information. */
gcsHAL_INTERFACE iface;
}
gcsQUEUE;
/* Event queue. */
struct _gcoQUEUE
{
/* The object. */
gcsOBJECT object;
/* Pointer to current event queue. */
gcsQUEUE_PTR head;
gcsQUEUE_PTR tail;
#ifdef __QNXNTO__
/* Buffer for records. */
gcsQUEUE_PTR records;
gctUINT32 freeBytes;
gctUINT32 offset;
#else
/* List of free records. */
gcsQUEUE_PTR freeList;
#endif
#define gcdIN_QUEUE_RECORD_LIMIT 16
/* Number of records currently in queue */
gctUINT32 recordCount;
};
#ifdef __cplusplus
}
#endif
#endif /* __gc_hal_kernel_buffer_h_ */
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