diff options
Diffstat (limited to 'src/include_olpc_4_6_9/gc_hal_user_buffer.h')
| -rw-r--r-- | src/include_olpc_4_6_9/gc_hal_user_buffer.h | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/src/include_olpc_4_6_9/gc_hal_user_buffer.h b/src/include_olpc_4_6_9/gc_hal_user_buffer.h new file mode 100644 index 0000000..f50218b --- /dev/null +++ b/src/include_olpc_4_6_9/gc_hal_user_buffer.h @@ -0,0 +1,184 @@ +/**************************************************************************** +* +* Copyright (c) 2005 - 2012 by Vivante Corp. All rights reserved. +* +* The material in this file is confidential and contains trade secrets +* of Vivante Corporation. This is proprietary information owned by +* Vivante Corporation. No part of this work may be disclosed, +* reproduced, copied, transmitted, or used in any way for any purpose, +* without the express written permission of Vivante Corporation. +* +*****************************************************************************/ + + + + +#ifndef __gc_hal_user_buffer_h_ +#define __gc_hal_user_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_user_buffer_h_ */ |