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