| 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 | #include "packer.h"
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| 8 | #include "cr_protocol.h"
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| 9 |
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| 10 | void PACK_APIENTRY crPackBegin( GLenum mode )
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| 11 | {
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| 12 | CR_GET_PACKER_CONTEXT(pc);
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| 13 | unsigned char *data_ptr;
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| 14 | (void) pc;
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| 15 | if (pc->buffer.canBarf)
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| 16 | {
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| 17 | if (!pc->buffer.holds_BeginEnd)
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| 18 | pc->Flush( pc->flush_arg );
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| 19 | pc->buffer.in_BeginEnd = 1;
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| 20 | pc->buffer.holds_BeginEnd = 1;
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| 21 | }
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| 22 | CR_GET_BUFFERED_POINTER( pc, 4 );
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| 23 | CRASSERT(pc->enmBeginEndState == CRPackBeginEndStateNone);
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| 24 | pc->enmBeginEndState = CRPackBeginEndStateStarted;
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| 25 | pc->current.begin_data = data_ptr;
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| 26 | pc->current.begin_op = pc->buffer.opcode_current;
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| 27 | pc->current.attribsUsedMask = 0;
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| 28 | WRITE_DATA( 0, GLenum, mode );
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| 29 | WRITE_OPCODE( pc, CR_BEGIN_OPCODE );
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| 30 | CR_UNLOCK_PACKER_CONTEXT(pc);
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| 31 | }
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| 32 |
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| 33 | void PACK_APIENTRY crPackBeginSWAP( GLenum mode )
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| 34 | {
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| 35 | CR_GET_PACKER_CONTEXT(pc);
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| 36 | unsigned char *data_ptr;
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| 37 | (void) pc;
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| 38 | if (pc->buffer.canBarf)
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| 39 | {
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| 40 | if (!pc->buffer.holds_BeginEnd)
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| 41 | pc->Flush( pc->flush_arg );
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| 42 | pc->buffer.in_BeginEnd = 1;
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| 43 | pc->buffer.holds_BeginEnd = 1;
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| 44 | }
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| 45 | CR_GET_BUFFERED_POINTER( pc, 4 );
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| 46 | CRASSERT(pc->enmBeginEndState == CRPackBeginEndStateNone);
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| 47 | pc->enmBeginEndState = CRPackBeginEndStateStarted;
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| 48 | pc->current.begin_data = data_ptr;
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| 49 | pc->current.begin_op = pc->buffer.opcode_current;
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| 50 | pc->current.attribsUsedMask = 0;
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| 51 | WRITE_DATA( 0, GLenum, SWAP32(mode) );
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| 52 | WRITE_OPCODE( pc, CR_BEGIN_OPCODE );
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| 53 | CR_UNLOCK_PACKER_CONTEXT(pc);
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| 54 | }
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| 55 |
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| 56 | void PACK_APIENTRY crPackEnd( void )
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| 57 | {
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| 58 | CR_GET_PACKER_CONTEXT(pc);
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| 59 | unsigned char *data_ptr;
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| 60 | (void) pc;
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| 61 | CR_GET_BUFFERED_POINTER_NO_ARGS( pc );
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| 62 | WRITE_OPCODE( pc, CR_END_OPCODE );
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| 63 | pc->buffer.in_BeginEnd = 0;
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| 64 | CRASSERT(pc->enmBeginEndState == CRPackBeginEndStateStarted
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| 65 | || pc->enmBeginEndState == CRPackBeginEndStateFlushDone);
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| 66 | if (pc->enmBeginEndState == CRPackBeginEndStateFlushDone)
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| 67 | {
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| 68 | pc->Flush( pc->flush_arg );
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| 69 | }
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| 70 | pc->enmBeginEndState = CRPackBeginEndStateNone;
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| 71 | CR_UNLOCK_PACKER_CONTEXT(pc);
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| 72 | }
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| 73 |
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| 74 | void PACK_APIENTRY crPackEndSWAP( void )
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| 75 | {
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| 76 | CR_GET_PACKER_CONTEXT(pc);
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| 77 | unsigned char *data_ptr;
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| 78 | (void) pc;
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| 79 | CR_GET_BUFFERED_POINTER_NO_ARGS( pc );
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| 80 | WRITE_OPCODE( pc, CR_END_OPCODE );
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| 81 | pc->buffer.in_BeginEnd = 0;
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| 82 | CRASSERT(pc->enmBeginEndState == CRPackBeginEndStateStarted
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| 83 | || pc->enmBeginEndState == CRPackBeginEndStateFlushDone);
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| 84 | if (pc->enmBeginEndState == CRPackBeginEndStateFlushDone)
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| 85 | {
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| 86 | pc->Flush( pc->flush_arg );
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| 87 | }
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| 88 | CR_UNLOCK_PACKER_CONTEXT(pc);
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| 89 | }
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| 90 |
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