98 lines
5.2 KiB
C
98 lines
5.2 KiB
C
/******************************Module*Header*******************************\
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* Module Name: subbatch.h
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*
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* OpenGL batching macros.
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*
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* Copyright (c) 1993 Microsoft Corporation
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\**************************************************************************/
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#ifndef __SUBBATCH_H__
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#define __SUBBATCH_H__
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#ifdef DOGLMSGBATCHSTATS
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#define STATS_INC_CLIENTCALLS() (pMsgBatchInfo->BatchStats.ClientCalls++)
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#else
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#define STATS_INC_CLIENTCALLS()
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#endif
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// Put a message into shared area. If it does not fit, flush what is
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// currently in the buffer and then put the message at start of the buffer
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//
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// NOTE: glsbAttentionAlt() updates pMsgBatchInfo->NextOffset on return.
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// If you modify this macro, you have to fix the glsbAttentionAlt()
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// function!
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#define GLCLIENT_BEGIN(ProcName,MsgStruct) \
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{ \
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GLMSGBATCHINFO *pMsgBatchInfo; \
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GLMSG_##MsgStruct *pMsg; \
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ULONG CurrentOffset; \
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\
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/* Get shared memory window from the TEB */ \
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pMsgBatchInfo = GLTEB_SHAREDMEMORYSECTION(); \
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STATS_INC_CLIENTCALLS(); \
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\
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/* Get and update the offset of the next message */ \
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CurrentOffset = pMsgBatchInfo->NextOffset; \
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pMsgBatchInfo->NextOffset += GLMSG_ALIGN(sizeof(GLMSG_##MsgStruct)); \
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\
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/* Flush message if shared memory window is full */ \
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if (pMsgBatchInfo->NextOffset > pMsgBatchInfo->MaximumOffset) \
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CurrentOffset = glsbAttentionAlt(CurrentOffset); \
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\
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/* Add message to the batch */ \
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pMsg = (GLMSG_##MsgStruct *)(((BYTE *)pMsgBatchInfo) + CurrentOffset); \
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pMsg->ProcOffset = offsetof(GLSRVSBPROCTABLE, glsrv##ProcName);
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#define GLCLIENT_END }
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// Large Messages have a variable amount of data associated with them.
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// Unlike the non-clientside version, however, we will not attempt to
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// copy the message into the buffer. Instead, we will pass the pointer
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// and flush. Unlike CSR, we will not have to copy data in/out of a
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// shared memory section to do this.
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#define GLCLIENT_BEGIN_LARGE(bSet,ProcName,MsgStruct,pData,Size,OffData) \
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{ \
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GLMSGBATCHINFO *pMsgBatchInfo; \
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GLMSG_##MsgStruct *pMsg; \
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ULONG CurrentOffset; \
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\
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/* Get shared memory window from the TEB */ \
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pMsgBatchInfo = GLTEB_SHAREDMEMORYSECTION(); \
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STATS_INC_CLIENTCALLS(); \
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\
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/* Get and update the offset of the next message */ \
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CurrentOffset = pMsgBatchInfo->NextOffset; \
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pMsgBatchInfo->NextOffset += GLMSG_ALIGN(sizeof(GLMSG_##MsgStruct)); \
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\
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/* Flush message if shared memory window is full */ \
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if (pMsgBatchInfo->NextOffset > pMsgBatchInfo->MaximumOffset) \
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CurrentOffset = glsbAttentionAlt(CurrentOffset); \
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\
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/* Set up message header */ \
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pMsg = (GLMSG_##MsgStruct *)(((BYTE *)pMsgBatchInfo) + CurrentOffset); \
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pMsg->ProcOffset = offsetof(GLSRVSBPROCTABLE, glsrv##ProcName); \
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pMsg->##OffData = (ULONG) pData; \
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\
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DBGLEVEL2(LEVEL_INFO, "GLCLIENT_BEGIN_LARGE %s pdata 0x%x\n", \
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#ProcName, pData);
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#define GLCLIENT_END_LARGE_SET \
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glsbAttention(); \
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}
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#define GLCLIENT_END_LARGE_GET \
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glsbAttention(); \
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}
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#define GLCLIENT_BEGIN_LARGE_SET(ProcName,MsgStruct,pData,Size,OffData) \
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GLCLIENT_BEGIN_LARGE(TRUE,ProcName,MsgStruct,pData,Size,OffData)
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#define GLCLIENT_BEGIN_LARGE_GET(ProcName,MsgStruct,pData,Size,OffData) \
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GLCLIENT_BEGIN_LARGE(FALSE,ProcName,MsgStruct,pData,Size,OffData)
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#define GLMSG_MEMCPY(dest,src,size) memcpy(dest,src,size)
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#endif /* !__SUBBATCH_H__ */
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