| 1 | /* Copyright (c) 2001, Stanford University
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| 2 | * All rights reserved.
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| 3 | *
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| 4 | * See the file LICENSE.txt for information on redistributing this software.
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| 5 | */
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| 6 |
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| 7 | #ifndef CR_PACK_H
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| 8 | #define CR_PACK_H
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| 9 |
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| 10 | #include "cr_compiler.h"
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| 11 | #include "cr_error.h"
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| 12 | #include "cr_protocol.h"
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| 13 | #include "cr_opcodes.h"
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| 14 | #include "cr_endian.h"
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| 15 | #include "state/cr_statetypes.h"
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| 16 | #include "state/cr_currentpointers.h"
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| 17 | #include "state/cr_client.h"
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| 18 | #ifdef CHROMIUM_THREADSAFE
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| 19 | #include "cr_threads.h"
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| 20 | #endif
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| 21 |
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| 22 | #include <iprt/types.h>
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| 23 |
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| 24 | #ifdef __cplusplus
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| 25 | extern "C" {
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| 26 | #endif
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| 27 |
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| 28 | typedef struct CRPackContext_t CRPackContext;
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| 29 |
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| 30 | /**
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| 31 | * Packer buffer
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| 32 | */
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| 33 | typedef struct
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| 34 | {
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| 35 | void *pack; /**< the actual storage space/buffer */
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| 36 | unsigned int size; /**< size of pack[] buffer */
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| 37 | unsigned int mtu;
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| 38 | unsigned char *data_start, *data_current, *data_end;
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| 39 | unsigned char *opcode_start, *opcode_current, *opcode_end;
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| 40 | GLboolean geometry_only; /**< just used for debugging */
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| 41 | GLboolean holds_BeginEnd;
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| 42 | GLboolean in_BeginEnd;
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| 43 | GLboolean canBarf;
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| 44 | GLboolean holds_List;
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| 45 | GLboolean in_List;
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| 46 | CRPackContext *context;
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| 47 | } CRPackBuffer;
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| 48 |
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| 49 | typedef void (*CRPackFlushFunc)(void *arg);
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| 50 | typedef void (*CRPackSendHugeFunc)(CROpcode, void *);
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| 51 | typedef void (*CRPackErrorHandlerFunc)(int line, const char *file, GLenum error, const char *info);
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| 52 |
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| 53 | #define CRPACKBLOCKSTATE_OP_BEGIN 0x01
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| 54 | #define CRPACKBLOCKSTATE_OP_NEWLIST 0x02
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| 55 | #define CRPACKBLOCKSTATE_OP_BEGINQUERY 0x04
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| 56 | #define CRPACKBLOCKSTATE_OP_ALL 0x07
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| 57 |
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| 58 | #define CRPACKBLOCKSTATE_IS_OP_STARTED(_state, _op) (!!((_state) & (_op)))
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| 59 |
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| 60 | #define CRPACKBLOCKSTATE_IS_STARTED(_state) (!!(_state))
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| 61 |
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| 62 | #define CRPACKBLOCKSTATE_OP_START(_state, _op) do { \
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| 63 | Assert(!CRPACKBLOCKSTATE_IS_OP_STARTED(_state, _op)); \
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| 64 | (_state) |= (_op); \
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| 65 | } while (0)
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| 66 |
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| 67 | #define CRPACKBLOCKSTATE_OP_STOP(_state, _op) do { \
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| 68 | Assert(CRPACKBLOCKSTATE_IS_OP_STARTED(_state, _op)); \
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| 69 | (_state) &= ~(_op); \
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| 70 | } while (0)
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| 71 |
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| 72 | /**
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| 73 | * Packer context
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| 74 | */
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| 75 | struct CRPackContext_t
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| 76 | {
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| 77 | CRPackBuffer buffer; /**< not a pointer, see comments in pack_buffer.c */
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| 78 | CRPackFlushFunc Flush;
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| 79 | void *flush_arg;
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| 80 | CRPackSendHugeFunc SendHuge;
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| 81 | CRPackErrorHandlerFunc Error;
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| 82 | CRCurrentStatePointers current;
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| 83 | uint32_t u32CmdBlockState;
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| 84 | GLvectorf bounds_min, bounds_max;
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| 85 | int updateBBOX;
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| 86 | int swapping;
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| 87 | CRPackBuffer *currentBuffer;
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| 88 | #ifdef CHROMIUM_THREADSAFE
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| 89 | CRmutex mutex;
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| 90 | #endif
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| 91 | char *file; /**< for debugging only */
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| 92 | int line; /**< for debugging only */
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| 93 | };
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| 94 |
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| 95 | #if !defined(IN_RING0)
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| 96 | # define CR_PACKER_CONTEXT_ARGSINGLEDECL void
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| 97 | # define CR_PACKER_CONTEXT_ARGDECL
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| 98 | # define CR_PACKER_CONTEXT_ARG
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| 99 | # define CR_PACKER_CONTEXT_ARG_NOREF() do {} while (0)
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| 100 | # define CR_PACKER_CONTEXT_ARGCTX(C)
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| 101 | # ifdef CHROMIUM_THREADSAFE
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| 102 | extern CRtsd _PackerTSD;
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| 103 | # define CR_GET_PACKER_CONTEXT(C) CRPackContext *C = (CRPackContext *) crGetTSD(&_PackerTSD)
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| 104 | # define CR_LOCK_PACKER_CONTEXT(PC) crLockMutex(&((PC)->mutex))
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| 105 | # define CR_UNLOCK_PACKER_CONTEXT(PC) crUnlockMutex(&((PC)->mutex))
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| 106 | # else
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| 107 | extern DLLDATA(CRPackContext) cr_packer_globals;
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| 108 | # define CR_GET_PACKER_CONTEXT(C) CRPackContext *C = &cr_packer_globals
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| 109 | # define CR_LOCK_PACKER_CONTEXT(PC)
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| 110 | # define CR_UNLOCK_PACKER_CONTEXT(PC)
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| 111 | # endif
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| 112 | extern uint32_t cr_packer_cmd_blocks_enabled;
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| 113 | #else /* if defined IN_RING0 */
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| 114 | # define CR_PACKER_CONTEXT_ARGSINGLEDECL CRPackContext *_pCtx
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| 115 | # define CR_PACKER_CONTEXT_ARGDECL CR_PACKER_CONTEXT_ARGSINGLEDECL,
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| 116 | # define CR_PACKER_CONTEXT_ARG _pCtx,
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| 117 | # define CR_PACKER_CONTEXT_ARG_NOREF() RT_NOREF_PV(_pCtx)
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| 118 | # define CR_PACKER_CONTEXT_ARGCTX(C) C,
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| 119 | # define CR_GET_PACKER_CONTEXT(C) CRPackContext *C = _pCtx
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| 120 | # define CR_LOCK_PACKER_CONTEXT(PC)
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| 121 | # define CR_UNLOCK_PACKER_CONTEXT(PC)
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| 122 | #endif
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| 123 |
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| 124 | extern DECLEXPORT(CRPackContext *) crPackNewContext(int swapping);
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| 125 | extern DECLEXPORT(void) crPackDeleteContext(CRPackContext *pc);
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| 126 | extern DECLEXPORT(void) crPackSetContext( CRPackContext *pc );
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| 127 | extern DECLEXPORT(CRPackContext *) crPackGetContext( void );
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| 128 |
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| 129 | extern DECLEXPORT(void) crPackSetBuffer( CRPackContext *pc, CRPackBuffer *buffer );
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| 130 | extern DECLEXPORT(void) crPackSetBufferDEBUG( const char *file, int line, CRPackContext *pc, CRPackBuffer *buffer );
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| 131 | extern DECLEXPORT(void) crPackReleaseBuffer( CRPackContext *pc );
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| 132 | extern DECLEXPORT(void) crPackResetPointers( CRPackContext *pc );
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| 133 |
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| 134 | extern DECLEXPORT(int) crPackMaxOpcodes( int buffer_size );
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| 135 | extern DECLEXPORT(int) crPackMaxData( int buffer_size );
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| 136 | extern DECLEXPORT(void) crPackInitBuffer( CRPackBuffer *buffer, void *buf, int size, int mtu
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| 137 | #ifdef IN_RING0
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| 138 | , unsigned int num_opcodes
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| 139 | #endif
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| 140 | );
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| 141 |
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| 142 | extern DECLEXPORT(void) crPackFlushFunc( CRPackContext *pc, CRPackFlushFunc ff );
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| 143 | extern DECLEXPORT(void) crPackFlushArg( CRPackContext *pc, void *flush_arg );
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| 144 | extern DECLEXPORT(void) crPackSendHugeFunc( CRPackContext *pc, CRPackSendHugeFunc shf );
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| 145 | extern DECLEXPORT(void) crPackErrorFunction( CRPackContext *pc, CRPackErrorHandlerFunc errf );
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| 146 | extern DECLEXPORT(void) crPackOffsetCurrentPointers( int offset );
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| 147 | extern DECLEXPORT(void) crPackNullCurrentPointers( void );
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| 148 |
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| 149 | extern DECLEXPORT(void) crPackResetBoundingBox( CRPackContext *pc );
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| 150 | extern DECLEXPORT(GLboolean) crPackGetBoundingBox( CRPackContext *pc,
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| 151 | GLfloat *xmin, GLfloat *ymin, GLfloat *zmin,
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| 152 | GLfloat *xmax, GLfloat *ymax, GLfloat *zmax);
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| 153 |
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| 154 | extern DECLEXPORT(void) crPackAppendBuffer( CR_PACKER_CONTEXT_ARGDECL const CRPackBuffer *buffer );
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| 155 | extern DECLEXPORT(void) crPackAppendBoundedBuffer( CR_PACKER_CONTEXT_ARGDECL const CRPackBuffer *buffer, const CRrecti *bounds );
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| 156 | extern DECLEXPORT(int) crPackCanHoldBuffer( CR_PACKER_CONTEXT_ARGDECL const CRPackBuffer *buffer );
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| 157 | extern DECLEXPORT(int) crPackCanHoldBoundedBuffer( CR_PACKER_CONTEXT_ARGDECL const CRPackBuffer *buffer );
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| 158 |
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| 159 | #if defined(LINUX) || defined(WINDOWS)
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| 160 | #define CR_UNALIGNED_ACCESS_OKAY
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| 161 | #else
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| 162 | #undef CR_UNALIGNED_ACCESS_OKAY
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| 163 | #endif
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| 164 | #ifndef IN_RING0
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| 165 | extern DECLEXPORT(void) crWriteUnalignedDouble( void *buffer, double d );
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| 166 | extern DECLEXPORT(void) crWriteSwappedDouble( void *buffer, double d );
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| 167 | #endif
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| 168 |
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| 169 | extern DECLEXPORT(void) *crPackAlloc( CR_PACKER_CONTEXT_ARGDECL unsigned int len );
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| 170 | extern DECLEXPORT(void) crHugePacket( CR_PACKER_CONTEXT_ARGDECL CROpcode op, void *ptr );
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| 171 | extern DECLEXPORT(void) crPackFree( CR_PACKER_CONTEXT_ARGDECL void *ptr );
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| 172 | extern DECLEXPORT(void) crNetworkPointerWrite( CRNetworkPointer *, void * );
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| 173 |
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| 174 | extern DECLEXPORT(void) crPackExpandDrawArrays(GLenum mode, GLint first, GLsizei count, CRClientState *c, const GLfloat *pZva);
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| 175 | extern DECLEXPORT(void) crPackExpandDrawArraysSWAP(GLenum mode, GLint first, GLsizei count, CRClientState *c, const GLfloat *pZva);
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| 176 |
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| 177 | extern DECLEXPORT(void) crPackUnrollDrawElements(GLsizei count, GLenum type, const GLvoid *indices);
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| 178 | extern DECLEXPORT(void) crPackUnrollDrawElementsSWAP(GLsizei count, GLenum type, const GLvoid *indices);
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| 179 |
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| 180 | extern DECLEXPORT(void) crPackExpandDrawElements(GLenum mode, GLsizei count, GLenum type, const GLvoid *indices, CRClientState *c, const GLfloat *pZva);
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| 181 | extern DECLEXPORT(void) crPackExpandDrawElementsSWAP(GLenum mode, GLsizei count, GLenum type, const GLvoid *indices, CRClientState *c, const GLfloat *pZva);
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| 182 |
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| 183 | extern DECLEXPORT(void) crPackExpandDrawRangeElements(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices, CRClientState *c, const GLfloat *pZva);
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| 184 | extern DECLEXPORT(void) crPackExpandDrawRangeElementsSWAP(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices, CRClientState *c, const GLfloat *pZva);
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| 185 |
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| 186 | extern DECLEXPORT(void) crPackExpandArrayElement(GLint index, CRClientState *c, const GLfloat *pZva);
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| 187 | extern DECLEXPORT(void) crPackExpandArrayElementSWAP(GLint index, CRClientState *c, const GLfloat *pZva);
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| 188 |
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| 189 | extern DECLEXPORT(void) crPackExpandMultiDrawArraysEXT( GLenum mode, GLint *first, GLsizei *count, GLsizei primcount, CRClientState *c, const GLfloat *pZva );
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| 190 | extern DECLEXPORT(void) crPackExpandMultiDrawArraysEXTSWAP( GLenum mode, GLint *first, GLsizei *count, GLsizei primcount, CRClientState *c, const GLfloat *pZva );
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| 191 |
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| 192 | extern DECLEXPORT(void) crPackExpandMultiDrawElementsEXT( GLenum mode, const GLsizei *count, GLenum type, const GLvoid **indices, GLsizei primcount, CRClientState *c, const GLfloat *pZva );
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| 193 | extern DECLEXPORT(void) crPackExpandMultiDrawElementsEXTSWAP( GLenum mode, const GLsizei *count, GLenum type, const GLvoid **indices, GLsizei primcount, CRClientState *c, const GLfloat *pZva );
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| 194 |
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| 195 | extern DECLEXPORT(void) crPackCapsSet(uint32_t u32Caps);
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| 196 |
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| 197 | /**
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| 198 | * Return number of opcodes in given buffer.
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| 199 | */
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| 200 | static INLINE int
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| 201 | crPackNumOpcodes(const CRPackBuffer *buffer)
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| 202 | {
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| 203 | CRASSERT(buffer->opcode_start - buffer->opcode_current >= 0);
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| 204 | return buffer->opcode_start - buffer->opcode_current;
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| 205 | }
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| 206 |
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| 207 | DECLINLINE(bool) crPackBufferIsEmpty(CRPackBuffer *buffer)
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| 208 | {
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| 209 | return crPackNumOpcodes(buffer) == 0;
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| 210 | }
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| 211 |
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| 212 | /**
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| 213 | * Return amount of data (in bytes) in buffer.
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| 214 | */
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| 215 | static INLINE int
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| 216 | crPackNumData(const CRPackBuffer *buffer)
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| 217 | {
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| 218 | CRASSERT(buffer->data_current - buffer->data_start >= 0);
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| 219 | return buffer->data_current - buffer->data_start; /* in bytes */
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| 220 | }
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| 221 |
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| 222 |
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| 223 | static INLINE int
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| 224 | crPackCanHoldOpcode(const CRPackContext *pc, int num_opcode, int num_data)
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| 225 | {
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| 226 | int fitsInMTU, opcodesFit, dataFits;
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| 227 |
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| 228 | CRASSERT(pc->currentBuffer);
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| 229 |
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| 230 | fitsInMTU = (((pc->buffer.data_current - pc->buffer.opcode_current - 1
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| 231 | + num_opcode + num_data
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| 232 | + 0x3 ) & ~0x3) + sizeof(CRMessageOpcodes)
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| 233 | <= pc->buffer.mtu);
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| 234 | opcodesFit = (pc->buffer.opcode_current - num_opcode >= pc->buffer.opcode_end);
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| 235 | dataFits = (pc->buffer.data_current + num_data <= pc->buffer.data_end);
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| 236 |
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| 237 | return fitsInMTU && opcodesFit && dataFits;
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| 238 | }
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| 239 |
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| 240 |
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| 241 | #define CR_PACK_SPECIAL_OP( _pc, _op) \
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| 242 | do { \
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| 243 | data_ptr = pc->buffer.data_current; \
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| 244 | (_pc)->buffer.data_current += 4; \
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| 245 | WRITE_OPCODE( (_pc), (_op) ); \
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| 246 | WRITE_DATA( 0, GLuint, 0xdeadbeef ); \
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| 247 | data_ptr = NULL; /* <- sanity*/ \
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| 248 | } while (0)
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| 249 |
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| 250 | #define CR_CMDBLOCK_OP( _pc, _op) \
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| 251 | do { \
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| 252 | CR_PACK_SPECIAL_OP( _pc, _op); \
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| 253 | } while (0)
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| 254 |
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| 255 | #define CR_CMDBLOCK_IS_STARTED( pc, op ) CRPACKBLOCKSTATE_IS_OP_STARTED((pc)->u32CmdBlockState, op)
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| 256 |
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| 257 | #define CR_CMDBLOCK_BEGIN( pc, op ) \
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| 258 | do { \
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| 259 | CR_LOCK_PACKER_CONTEXT(pc); \
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| 260 | if (!cr_packer_cmd_blocks_enabled) break; \
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| 261 | if (!CRPACKBLOCKSTATE_IS_STARTED((pc)->u32CmdBlockState)) { \
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| 262 | THREADASSERT( pc ); \
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| 263 | CRASSERT( (pc)->currentBuffer ); \
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| 264 | if (!crPackBufferIsEmpty(&(pc)->buffer)) { \
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| 265 | if ((*(pc)->buffer.opcode_start) != CR_NOP_OPCODE) { \
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| 266 | (pc)->Flush( (pc)->flush_arg ); \
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| 267 | Assert(crPackCanHoldOpcode( (pc), 1, 4 ) ); \
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| 268 | CR_CMDBLOCK_OP( (pc), CR_CMDBLOCKBEGIN_OPCODE ); \
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| 269 | } \
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| 270 | else { \
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| 271 | (*(pc)->buffer.opcode_start) = CR_CMDBLOCKBEGIN_OPCODE; \
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| 272 | } \
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| 273 | } \
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| 274 | else { \
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| 275 | Assert(crPackCanHoldOpcode( (pc), 1, 4 ) ); \
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| 276 | CR_CMDBLOCK_OP( (pc), CR_CMDBLOCKBEGIN_OPCODE ); \
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| 277 | } \
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| 278 | } \
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| 279 | Assert(!CRPACKBLOCKSTATE_IS_OP_STARTED((pc)->u32CmdBlockState, op)); \
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| 280 | CRPACKBLOCKSTATE_OP_START((pc)->u32CmdBlockState, op); \
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| 281 | Assert(CRPACKBLOCKSTATE_IS_OP_STARTED((pc)->u32CmdBlockState, op)); \
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| 282 | } while (0)
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| 283 |
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| 284 | #define CR_CMDBLOCK_END( pc, op ) \
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| 285 | do { \
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| 286 | if (!cr_packer_cmd_blocks_enabled) break; \
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| 287 | Assert(CRPACKBLOCKSTATE_IS_OP_STARTED((pc)->u32CmdBlockState, op)); \
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| 288 | CRPACKBLOCKSTATE_OP_STOP((pc)->u32CmdBlockState, op); \
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| 289 | Assert(!CRPACKBLOCKSTATE_IS_OP_STARTED((pc)->u32CmdBlockState, op)); \
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| 290 | if (!CRPACKBLOCKSTATE_IS_STARTED((pc)->u32CmdBlockState)) { \
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| 291 | THREADASSERT( pc ); \
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| 292 | CRASSERT( (pc)->currentBuffer ); \
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| 293 | if (!crPackBufferIsEmpty(&(pc)->buffer)) { \
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| 294 | if ((*(pc)->buffer.opcode_start) != CR_CMDBLOCKBEGIN_OPCODE) {\
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| 295 | if ( !crPackCanHoldOpcode( pc, 1, 4 ) ) { \
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| 296 | (pc)->Flush( (pc)->flush_arg ); \
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| 297 | Assert(crPackCanHoldOpcode( pc, 1, 4 ) ); \
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| 298 | } \
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| 299 | CR_CMDBLOCK_OP( pc, CR_CMDBLOCKEND_OPCODE ); \
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| 300 | (pc)->Flush( (pc)->flush_arg ); \
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| 301 | } \
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| 302 | else { \
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| 303 | (*(pc)->buffer.opcode_start) = CR_NOP_OPCODE; \
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| 304 | } \
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| 305 | } \
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| 306 | else { \
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| 307 | Assert(crPackCanHoldOpcode( pc, 1, 4 ) ); \
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| 308 | CR_CMDBLOCK_OP( pc, CR_CMDBLOCKEND_OPCODE ); \
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| 309 | (pc)->Flush( pc->flush_arg ); \
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| 310 | } \
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| 311 | } \
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| 312 | } while (0)
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| 313 |
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| 314 | #define CR_CMDBLOCK_CHECK_FLUSH( pc ) \
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| 315 | do { \
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| 316 | if (!(cr_packer_cmd_blocks_enabled & CR_VBOX_CAP_CMDBLOCKS_FLUSH)) break; \
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| 317 | if(!CRPACKBLOCKSTATE_IS_OP_STARTED((pc)->u32CmdBlockState, CRPACKBLOCKSTATE_OP_NEWLIST)) break; \
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| 318 | THREADASSERT( pc ); \
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| 319 | CRASSERT( (pc)->currentBuffer ); \
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| 320 | if ( !crPackCanHoldOpcode( pc, 1, 4 ) ) { \
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| 321 | (pc)->Flush( (pc)->flush_arg ); \
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| 322 | Assert(crPackCanHoldOpcode( pc, 1, 4 ) ); \
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| 323 | } \
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| 324 | CR_CMDBLOCK_OP( pc, CR_CMDBLOCKFLUSH_OPCODE ); \
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| 325 | (pc)->Flush( (pc)->flush_arg ); \
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| 326 | } while (0)
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| 327 |
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| 328 | /**
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| 329 | * Alloc space for a message of 'len' bytes (plus 1 opcode).
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| 330 | * Only flush if buffer is full.
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| 331 | */
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| 332 | #define CR_GET_BUFFERED_POINTER_NO_BEGINEND_FLUSH(pc, len, lock) \
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| 333 | do { \
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| 334 | THREADASSERT( pc ); \
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| 335 | if (lock) CR_LOCK_PACKER_CONTEXT(pc); \
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| 336 | CRASSERT( pc->currentBuffer ); \
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| 337 | if ( !crPackCanHoldOpcode( pc, 1, (len) ) ) { \
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| 338 | pc->Flush( pc->flush_arg ); \
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| 339 | CRASSERT(crPackCanHoldOpcode( pc, 1, (len) ) ); \
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| 340 | } \
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| 341 | data_ptr = pc->buffer.data_current; \
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| 342 | pc->buffer.data_current += (len); \
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| 343 | } while (0)
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| 344 |
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| 345 | /**
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| 346 | * As above, flush if the buffer contains vertex data and we're
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| 347 | * no longer inside glBegin/glEnd.
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| 348 | */
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| 349 | #define CR_GET_BUFFERED_POINTER( pc, len ) \
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| 350 | do { \
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| 351 | CR_LOCK_PACKER_CONTEXT(pc); \
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| 352 | CRASSERT( pc->currentBuffer ); \
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| 353 | if ( pc->buffer.holds_BeginEnd && !pc->buffer.in_BeginEnd ) { \
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| 354 | CRASSERT( 0 ); /* should never be here currently */ \
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| 355 | pc->Flush( pc->flush_arg ); \
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| 356 | pc->buffer.holds_BeginEnd = 0; \
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| 357 | } \
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| 358 | CR_GET_BUFFERED_POINTER_NO_BEGINEND_FLUSH( pc, len, GL_FALSE ); \
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| 359 | } while (0)
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| 360 |
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| 361 | /**
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| 362 | * As above, but without lock.
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| 363 | */
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| 364 | #define CR_GET_BUFFERED_POINTER_NOLOCK( pc, len ) \
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| 365 | do { \
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| 366 | CRASSERT( pc->currentBuffer ); \
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| 367 | if ( pc->buffer.holds_BeginEnd && !pc->buffer.in_BeginEnd ) { \
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| 368 | CRASSERT( 0 ); /* should never be here currently */ \
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| 369 | pc->Flush( pc->flush_arg ); \
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| 370 | pc->buffer.holds_BeginEnd = 0; \
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| 371 | } \
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| 372 | CR_GET_BUFFERED_POINTER_NO_BEGINEND_FLUSH( pc, len, GL_FALSE ); \
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| 373 | } while (0)
|
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| 374 |
|
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| 375 |
|
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| 376 | /**
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| 377 | * As above, but for vertex data between glBegin/End (counts vertices).
|
|---|
| 378 | */
|
|---|
| 379 | #define CR_GET_BUFFERED_COUNT_POINTER( pc, len ) \
|
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| 380 | do { \
|
|---|
| 381 | CR_LOCK_PACKER_CONTEXT(pc); \
|
|---|
| 382 | CRASSERT( pc->currentBuffer ); \
|
|---|
| 383 | if ( !crPackCanHoldOpcode( pc, 1, (len) ) ) { \
|
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| 384 | pc->Flush( pc->flush_arg ); \
|
|---|
| 385 | CRASSERT( crPackCanHoldOpcode( pc, 1, (len) ) ); \
|
|---|
| 386 | } \
|
|---|
| 387 | data_ptr = pc->buffer.data_current; \
|
|---|
| 388 | pc->current.vtx_count++; \
|
|---|
| 389 | pc->buffer.data_current += (len); \
|
|---|
| 390 | } while (0)
|
|---|
| 391 |
|
|---|
| 392 |
|
|---|
| 393 | /**
|
|---|
| 394 | * Allocate space for a msg/command that has no arguments, such
|
|---|
| 395 | * as glFinish().
|
|---|
| 396 | */
|
|---|
| 397 | #define CR_GET_BUFFERED_POINTER_NO_ARGS( pc ) \
|
|---|
| 398 | CR_GET_BUFFERED_POINTER( pc, 4 ); \
|
|---|
| 399 | WRITE_DATA( 0, GLuint, 0xdeadbeef )
|
|---|
| 400 |
|
|---|
| 401 | #define WRITE_DATA( offset, type, data ) \
|
|---|
| 402 | *( (type *) (data_ptr + (offset))) = (data)
|
|---|
| 403 |
|
|---|
| 404 | /* Write data to current location and auto increment */
|
|---|
| 405 | #define WRITE_DATA_AI(type, data) \
|
|---|
| 406 | { \
|
|---|
| 407 | *((type*) (data_ptr)) = (data); \
|
|---|
| 408 | data_ptr += sizeof(type); \
|
|---|
| 409 | }
|
|---|
| 410 |
|
|---|
| 411 | #ifdef CR_UNALIGNED_ACCESS_OKAY
|
|---|
| 412 | #define WRITE_DOUBLE( offset, data ) \
|
|---|
| 413 | WRITE_DATA( offset, GLdouble, data )
|
|---|
| 414 | #else
|
|---|
| 415 | # ifndef IN_RING0
|
|---|
| 416 | # define WRITE_DOUBLE( offset, data ) \
|
|---|
| 417 | crWriteUnalignedDouble( data_ptr + (offset), (data) )
|
|---|
| 418 | # else
|
|---|
| 419 | # define WRITE_DOUBLE( offset, data ) \
|
|---|
| 420 | AssertReleaseFailed()
|
|---|
| 421 | # endif
|
|---|
| 422 | #endif
|
|---|
| 423 |
|
|---|
| 424 | #ifndef IN_RING0
|
|---|
| 425 | #define WRITE_SWAPPED_DOUBLE( offset, data ) \
|
|---|
| 426 | crWriteSwappedDouble( data_ptr + (offset), (data) )
|
|---|
| 427 | #else
|
|---|
| 428 | #define WRITE_SWAPPED_DOUBLE( offset, data ) \
|
|---|
| 429 | AssertReleaseFailed()
|
|---|
| 430 | #endif
|
|---|
| 431 |
|
|---|
| 432 | #define WRITE_OPCODE( pc, opcode ) \
|
|---|
| 433 | *(pc->buffer.opcode_current--) = (unsigned char) opcode
|
|---|
| 434 |
|
|---|
| 435 | #define WRITE_NETWORK_POINTER( offset, data ) \
|
|---|
| 436 | crNetworkPointerWrite( (CRNetworkPointer *) ( data_ptr + (offset) ), (data) )
|
|---|
| 437 |
|
|---|
| 438 | #ifdef __cplusplus
|
|---|
| 439 | }
|
|---|
| 440 | #endif
|
|---|
| 441 |
|
|---|
| 442 | #endif /* CR_PACK_H */
|
|---|
