dmlib: src/dmgrowbuf.c annotate

annotate src/dmgrowbuf.c @ 1785:86d10d5d4915

Fix case where DMGrowBuf is growing backwards and needs to be reallocated in dmGrowBufRealloc() and the data is moved to the "end" of the newly grown buffer. Previously we used clrsize as data size, but that is (in retrospect) obviously incorrect. Use old buffer size instead.

author	Matti Hamalainen <ccr@tnsp.org>
date	Wed, 13 Jun 2018 01:39:06 +0300
parents	a29d38862037
children	0801fd0e26cb

rev	line source
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	1 /*
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	2 * DMLib
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	3 * -- Growable buffer implementation
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	4 * Programmed and designed by Matti 'ccr' Hamalainen
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	5 * (C) Copyright 2018 Tecnic Software productions (TNSP)
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	6 */
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	7 #include "dmgrowbuf.h"
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	8
1536 064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	9 //#define DM_GROWBUF_DEBUG 1
064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	10
064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	11 #ifdef DM_GROWBUF_DEBUG
064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	12 # define DM_DBG(...) do { fprintf(stderr, __VA_ARGS__); } while (0)
064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	13 #else
064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	14 # define DM_DBG(...) do { } while (0)
064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	15 #endif
064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	16
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	17
1694 e568535e1a96 Backed out changeset 9611ecd2c4fb Matti Hamalainen <ccr@tnsp.org> parents: 1693 diff changeset	18 int dmGrowBufInit(DMGrowBuf *buf)
1458 b2dd6a72d162 Adjust semantics of growbuf and add new function. Matti Hamalainen <ccr@tnsp.org> parents: 1455 diff changeset	19 {
1694 e568535e1a96 Backed out changeset 9611ecd2c4fb Matti Hamalainen <ccr@tnsp.org> parents: 1693 diff changeset	20 DM_DBG("dmGrowBufInit(%p)\n", buf);
1687 383ca5f6e78b Cosmetics. Matti Hamalainen <ccr@tnsp.org> parents: 1536 diff changeset	21
1458 b2dd6a72d162 Adjust semantics of growbuf and add new function. Matti Hamalainen <ccr@tnsp.org> parents: 1455 diff changeset	22 if (buf == NULL)
b2dd6a72d162 Adjust semantics of growbuf and add new function. Matti Hamalainen <ccr@tnsp.org> parents: 1455 diff changeset	23 return DMERR_NULLPTR;
b2dd6a72d162 Adjust semantics of growbuf and add new function. Matti Hamalainen <ccr@tnsp.org> parents: 1455 diff changeset	24
b2dd6a72d162 Adjust semantics of growbuf and add new function. Matti Hamalainen <ccr@tnsp.org> parents: 1455 diff changeset	25 memset(buf, 0, sizeof(DMGrowBuf));
b2dd6a72d162 Adjust semantics of growbuf and add new function. Matti Hamalainen <ccr@tnsp.org> parents: 1455 diff changeset	26
1694 e568535e1a96 Backed out changeset 9611ecd2c4fb Matti Hamalainen <ccr@tnsp.org> parents: 1693 diff changeset	27 return DMERR_OK;
e568535e1a96 Backed out changeset 9611ecd2c4fb Matti Hamalainen <ccr@tnsp.org> parents: 1693 diff changeset	28 }
e568535e1a96 Backed out changeset 9611ecd2c4fb Matti Hamalainen <ccr@tnsp.org> parents: 1693 diff changeset	29
e568535e1a96 Backed out changeset 9611ecd2c4fb Matti Hamalainen <ccr@tnsp.org> parents: 1693 diff changeset	30
e568535e1a96 Backed out changeset 9611ecd2c4fb Matti Hamalainen <ccr@tnsp.org> parents: 1693 diff changeset	31 int dmGrowBufAlloc(DMGrowBuf *buf, const size_t initial, const size_t mingrow)
e568535e1a96 Backed out changeset 9611ecd2c4fb Matti Hamalainen <ccr@tnsp.org> parents: 1693 diff changeset	32 {
e568535e1a96 Backed out changeset 9611ecd2c4fb Matti Hamalainen <ccr@tnsp.org> parents: 1693 diff changeset	33 int res;
e568535e1a96 Backed out changeset 9611ecd2c4fb Matti Hamalainen <ccr@tnsp.org> parents: 1693 diff changeset	34
e568535e1a96 Backed out changeset 9611ecd2c4fb Matti Hamalainen <ccr@tnsp.org> parents: 1693 diff changeset	35 DM_DBG("dmGrowBufAlloc(%p, %" DM_PRIu_SIZE_T ", %" DM_PRIu_SIZE_T ")\n",
e568535e1a96 Backed out changeset 9611ecd2c4fb Matti Hamalainen <ccr@tnsp.org> parents: 1693 diff changeset	36 buf, initial, mingrow);
e568535e1a96 Backed out changeset 9611ecd2c4fb Matti Hamalainen <ccr@tnsp.org> parents: 1693 diff changeset	37
e568535e1a96 Backed out changeset 9611ecd2c4fb Matti Hamalainen <ccr@tnsp.org> parents: 1693 diff changeset	38 if ((res = dmGrowBufInit(buf)) != DMERR_OK)
e568535e1a96 Backed out changeset 9611ecd2c4fb Matti Hamalainen <ccr@tnsp.org> parents: 1693 diff changeset	39 return res;
e568535e1a96 Backed out changeset 9611ecd2c4fb Matti Hamalainen <ccr@tnsp.org> parents: 1693 diff changeset	40
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	41 buf->len = 0;
1531 260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	42 buf->offs = 0;
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	43 buf->size = initial;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	44 buf->mingrow = mingrow;
1702 94329f678841 Explicitly initialize some DMGrowBuf fields for clarity, though they are already cleared previously by memset(). Matti Hamalainen <ccr@tnsp.org> parents: 1701 diff changeset	45 buf->backwards = FALSE;
94329f678841 Explicitly initialize some DMGrowBuf fields for clarity, though they are already cleared previously by memset(). Matti Hamalainen <ccr@tnsp.org> parents: 1701 diff changeset	46 buf->is_const = FALSE;
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	47
1509 15afe578f0ae Add few comments to clarify things. Matti Hamalainen <ccr@tnsp.org> parents: 1508 diff changeset	48 // Allocate the data
1697 1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	49 if ((buf->data = dmMalloc0(initial)) == NULL)
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	50 return DMERR_MALLOC;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	51
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	52 return DMERR_OK;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	53 }
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	54
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	55
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	56 void dmGrowBufFree(DMGrowBuf *buf)
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	57 {
1536 064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	58 DM_DBG("dmGrowBufFree(%p)\n", buf);
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	59 if (buf != NULL)
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	60 {
1536 064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	61 DM_DBG(
064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	62 " buf->data = %p\n"
1700 a2e65aa47554 Implement dmGrowBufConstCopy() and dmGrowBufCreateFrom(), and also Matti Hamalainen <ccr@tnsp.org> parents: 1699 diff changeset	63 " buf->is_const = %s\n",
a2e65aa47554 Implement dmGrowBufConstCopy() and dmGrowBufCreateFrom(), and also Matti Hamalainen <ccr@tnsp.org> parents: 1699 diff changeset	64 buf->data,
a2e65aa47554 Implement dmGrowBufConstCopy() and dmGrowBufCreateFrom(), and also Matti Hamalainen <ccr@tnsp.org> parents: 1699 diff changeset	65 buf->is_const ? "YES" : "NO");
a2e65aa47554 Implement dmGrowBufConstCopy() and dmGrowBufCreateFrom(), and also Matti Hamalainen <ccr@tnsp.org> parents: 1699 diff changeset	66
a2e65aa47554 Implement dmGrowBufConstCopy() and dmGrowBufCreateFrom(), and also Matti Hamalainen <ccr@tnsp.org> parents: 1699 diff changeset	67 if (buf->is_const)
a2e65aa47554 Implement dmGrowBufConstCopy() and dmGrowBufCreateFrom(), and also Matti Hamalainen <ccr@tnsp.org> parents: 1699 diff changeset	68 return;
1536 064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	69
1697 1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	70 dmFreeR(&buf->data);
1747 5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	71 }
5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	72 }
1531 260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	73
1747 5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	74
5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	75 DMGrowBuf * dmGrowBufCopy(DMGrowBuf dst, const DMGrowBuf src, const size_t enlarge)
5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	76 {
5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	77 if (dst == NULL)
5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	78 return NULL;
5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	79
1782 22b6fa1a2ee4 Fix one DMGrowBuf debug print. Matti Hamalainen <ccr@tnsp.org> parents: 1747 diff changeset	80 DM_DBG("dmGrowBufCopy(dst=%p, src=%p, enlarge=%" DM_PRIu_SIZE_T "):\n"
1747 5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	81 " data=%p, size=%" DM_PRIu_SIZE_T ", len=%" DM_PRIu_SIZE_T ", offs=%" DM_PRIu_SIZE_T "\n",
5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	82 dst, src, enlarge, src->data, src->size, src->len, src->offs);
5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	83
5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	84 // Copy the struct here
5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	85 memcpy(dst, src, sizeof(DMGrowBuf));
5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	86 dst->size += enlarge;
5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	87
5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	88 // Allocate new memory for the data
5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	89 if ((dst->data = dmMalloc(dst->size)) == NULL)
5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	90 {
5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	91 // If that fails, clear the struct
5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	92 memset(dst, 0, sizeof(DMGrowBuf));
5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	93 return NULL;
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	94 }
1747 5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	95
5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	96 // Copy data
5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	97 memcpy(dst->data, src->data, src->size);
5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	98 if (enlarge > 0)
5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	99 memset(dst->data + src->size, 0, enlarge);
5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	100
5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	101 // And reset some struct information
5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	102 dst->is_const = FALSE;
5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	103
5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	104 return dst;
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	105 }
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	106
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	107
1700 a2e65aa47554 Implement dmGrowBufConstCopy() and dmGrowBufCreateFrom(), and also Matti Hamalainen <ccr@tnsp.org> parents: 1699 diff changeset	108 DMGrowBuf * dmGrowBufConstCopy(DMGrowBuf dst, const DMGrowBuf src)
a2e65aa47554 Implement dmGrowBufConstCopy() and dmGrowBufCreateFrom(), and also Matti Hamalainen <ccr@tnsp.org> parents: 1699 diff changeset	109 {
1701 31a1f710e342 Fix DMGrowBuf debugging. Matti Hamalainen <ccr@tnsp.org> parents: 1700 diff changeset	110 if (dst == NULL)
31a1f710e342 Fix DMGrowBuf debugging. Matti Hamalainen <ccr@tnsp.org> parents: 1700 diff changeset	111 return NULL;
31a1f710e342 Fix DMGrowBuf debugging. Matti Hamalainen <ccr@tnsp.org> parents: 1700 diff changeset	112
31a1f710e342 Fix DMGrowBuf debugging. Matti Hamalainen <ccr@tnsp.org> parents: 1700 diff changeset	113 DM_DBG("dmGrowBufConstCopy(dst=%p, src=%p):\n"
31a1f710e342 Fix DMGrowBuf debugging. Matti Hamalainen <ccr@tnsp.org> parents: 1700 diff changeset	114 " data=%p, size=%" DM_PRIu_SIZE_T ", len=%" DM_PRIu_SIZE_T ", offs=%" DM_PRIu_SIZE_T "\n",
31a1f710e342 Fix DMGrowBuf debugging. Matti Hamalainen <ccr@tnsp.org> parents: 1700 diff changeset	115 dst, src, src->data, src->size, src->len, src->offs);
31a1f710e342 Fix DMGrowBuf debugging. Matti Hamalainen <ccr@tnsp.org> parents: 1700 diff changeset	116
1700 a2e65aa47554 Implement dmGrowBufConstCopy() and dmGrowBufCreateFrom(), and also Matti Hamalainen <ccr@tnsp.org> parents: 1699 diff changeset	117 memcpy(dst, src, sizeof(DMGrowBuf));
a2e65aa47554 Implement dmGrowBufConstCopy() and dmGrowBufCreateFrom(), and also Matti Hamalainen <ccr@tnsp.org> parents: 1699 diff changeset	118 dst->is_const = TRUE;
1701 31a1f710e342 Fix DMGrowBuf debugging. Matti Hamalainen <ccr@tnsp.org> parents: 1700 diff changeset	119
1700 a2e65aa47554 Implement dmGrowBufConstCopy() and dmGrowBufCreateFrom(), and also Matti Hamalainen <ccr@tnsp.org> parents: 1699 diff changeset	120 return dst;
a2e65aa47554 Implement dmGrowBufConstCopy() and dmGrowBufCreateFrom(), and also Matti Hamalainen <ccr@tnsp.org> parents: 1699 diff changeset	121 }
a2e65aa47554 Implement dmGrowBufConstCopy() and dmGrowBufCreateFrom(), and also Matti Hamalainen <ccr@tnsp.org> parents: 1699 diff changeset	122
a2e65aa47554 Implement dmGrowBufConstCopy() and dmGrowBufCreateFrom(), and also Matti Hamalainen <ccr@tnsp.org> parents: 1699 diff changeset	123
1747 5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	124 DMGrowBuf * dmGrowBufConstCreateFrom(DMGrowBuf dst, Uint8 data, size_t len)
1700 a2e65aa47554 Implement dmGrowBufConstCopy() and dmGrowBufCreateFrom(), and also Matti Hamalainen <ccr@tnsp.org> parents: 1699 diff changeset	125 {
1701 31a1f710e342 Fix DMGrowBuf debugging. Matti Hamalainen <ccr@tnsp.org> parents: 1700 diff changeset	126 if (dmGrowBufInit(dst) != DMERR_OK)
31a1f710e342 Fix DMGrowBuf debugging. Matti Hamalainen <ccr@tnsp.org> parents: 1700 diff changeset	127 return NULL;
31a1f710e342 Fix DMGrowBuf debugging. Matti Hamalainen <ccr@tnsp.org> parents: 1700 diff changeset	128
1747 5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	129 DM_DBG("dmGrowBufConstCreateFrom(dst=%p, data=%p, len=%" DM_PRIu_SIZE_T ")\n",
1701 31a1f710e342 Fix DMGrowBuf debugging. Matti Hamalainen <ccr@tnsp.org> parents: 1700 diff changeset	130 dst, data, len);
1700 a2e65aa47554 Implement dmGrowBufConstCopy() and dmGrowBufCreateFrom(), and also Matti Hamalainen <ccr@tnsp.org> parents: 1699 diff changeset	131
a2e65aa47554 Implement dmGrowBufConstCopy() and dmGrowBufCreateFrom(), and also Matti Hamalainen <ccr@tnsp.org> parents: 1699 diff changeset	132 dst->data = data;
a2e65aa47554 Implement dmGrowBufConstCopy() and dmGrowBufCreateFrom(), and also Matti Hamalainen <ccr@tnsp.org> parents: 1699 diff changeset	133 dst->len = dst->size = len;
a2e65aa47554 Implement dmGrowBufConstCopy() and dmGrowBufCreateFrom(), and also Matti Hamalainen <ccr@tnsp.org> parents: 1699 diff changeset	134 dst->is_const = TRUE;
a2e65aa47554 Implement dmGrowBufConstCopy() and dmGrowBufCreateFrom(), and also Matti Hamalainen <ccr@tnsp.org> parents: 1699 diff changeset	135
a2e65aa47554 Implement dmGrowBufConstCopy() and dmGrowBufCreateFrom(), and also Matti Hamalainen <ccr@tnsp.org> parents: 1699 diff changeset	136 return dst;
a2e65aa47554 Implement dmGrowBufConstCopy() and dmGrowBufCreateFrom(), and also Matti Hamalainen <ccr@tnsp.org> parents: 1699 diff changeset	137 }
a2e65aa47554 Implement dmGrowBufConstCopy() and dmGrowBufCreateFrom(), and also Matti Hamalainen <ccr@tnsp.org> parents: 1699 diff changeset	138
a2e65aa47554 Implement dmGrowBufConstCopy() and dmGrowBufCreateFrom(), and also Matti Hamalainen <ccr@tnsp.org> parents: 1699 diff changeset	139
1747 5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	140 DMGrowBuf * dmGrowBufConstCopyOffs(DMGrowBuf dst, const DMGrowBuf src, const size_t offs)
5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	141 {
5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	142 return dmGrowBufConstCreateFrom(dst, src->data + offs, src->len - offs);
5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	143 }
5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	144
5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	145
5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	146 DMGrowBuf * dmGrowBufCopyOffs(DMGrowBuf dst, const DMGrowBuf src, const size_t offs, const size_t enlarge)
5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	147 {
5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	148 DMGrowBuf tmp;
5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	149 return dmGrowBufCopy(dst,
5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	150 dmGrowBufConstCreateFrom(&tmp, src->data + offs, src->len - offs), enlarge);
5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	151 }
5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	152
5e928618fdc8 Change DMGrowBuf API somewhat and implement more copy operations. Matti Hamalainen <ccr@tnsp.org> parents: 1744 diff changeset	153
1530 94eb6a8a7d56 Add helper function dmGrowBufRealloc() to handle the common case of Matti Hamalainen <ccr@tnsp.org> parents: 1509 diff changeset	154 static BOOL dmGrowBufRealloc(DMGrowBuf *buf, const size_t nsize, const BOOL clear)
94eb6a8a7d56 Add helper function dmGrowBufRealloc() to handle the common case of Matti Hamalainen <ccr@tnsp.org> parents: 1509 diff changeset	155 {
1697 1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	156 DM_DBG("dmGrowBufRealloc(%p):\n"
1701 31a1f710e342 Fix DMGrowBuf debugging. Matti Hamalainen <ccr@tnsp.org> parents: 1700 diff changeset	157 " size=%" DM_PRIu_SIZE_T ", nsize=%" DM_PRIu_SIZE_T
31a1f710e342 Fix DMGrowBuf debugging. Matti Hamalainen <ccr@tnsp.org> parents: 1700 diff changeset	158 ", offs=%" DM_PRIu_SIZE_T "\n",
31a1f710e342 Fix DMGrowBuf debugging. Matti Hamalainen <ccr@tnsp.org> parents: 1700 diff changeset	159 buf, buf->size, nsize, buf->offs);
1536 064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	160
1700 a2e65aa47554 Implement dmGrowBufConstCopy() and dmGrowBufCreateFrom(), and also Matti Hamalainen <ccr@tnsp.org> parents: 1699 diff changeset	161 if (buf->is_const)
a2e65aa47554 Implement dmGrowBufConstCopy() and dmGrowBufCreateFrom(), and also Matti Hamalainen <ccr@tnsp.org> parents: 1699 diff changeset	162 return FALSE;
a2e65aa47554 Implement dmGrowBufConstCopy() and dmGrowBufCreateFrom(), and also Matti Hamalainen <ccr@tnsp.org> parents: 1699 diff changeset	163
1697 1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	164 // Can't be smaller than current size!
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	165 if (nsize < buf->size)
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	166 return FALSE;
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	167
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	168 if ((buf->data = dmRealloc(buf->data, nsize)) == NULL)
1530 94eb6a8a7d56 Add helper function dmGrowBufRealloc() to handle the common case of Matti Hamalainen <ccr@tnsp.org> parents: 1509 diff changeset	169 return FALSE;
94eb6a8a7d56 Add helper function dmGrowBufRealloc() to handle the common case of Matti Hamalainen <ccr@tnsp.org> parents: 1509 diff changeset	170
1697 1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	171 // For buffers growing backwards, we must move the
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	172 // current data to the end of the buffer ..
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	173 size_t clrsize = nsize - buf->size;
1784 a29d38862037 Improve DMGrowBuf debugging slightly. Matti Hamalainen <ccr@tnsp.org> parents: 1782 diff changeset	174 DM_DBG(" clrsize=%" DM_PRIu_SIZE_T "\n", clrsize);
1697 1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	175 if (buf->backwards)
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	176 {
1785 86d10d5d4915 Fix case where DMGrowBuf is growing backwards and needs to be reallocated in Matti Hamalainen <ccr@tnsp.org> parents: 1784 diff changeset	177 memmove(buf->data + clrsize, buf->data, buf->size);
1697 1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	178 buf->offs += clrsize;
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	179 }
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	180
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	181 // Check if we need to clear the newly allocated area?
1530 94eb6a8a7d56 Add helper function dmGrowBufRealloc() to handle the common case of Matti Hamalainen <ccr@tnsp.org> parents: 1509 diff changeset	182 if (clear)
1697 1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	183 {
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	184 if (buf->backwards)
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	185 memset(buf->data, 0, clrsize);
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	186 else
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	187 memset(buf->data + buf->size, 0, clrsize);
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	188 }
1530 94eb6a8a7d56 Add helper function dmGrowBufRealloc() to handle the common case of Matti Hamalainen <ccr@tnsp.org> parents: 1509 diff changeset	189
94eb6a8a7d56 Add helper function dmGrowBufRealloc() to handle the common case of Matti Hamalainen <ccr@tnsp.org> parents: 1509 diff changeset	190 buf->size = nsize;
94eb6a8a7d56 Add helper function dmGrowBufRealloc() to handle the common case of Matti Hamalainen <ccr@tnsp.org> parents: 1509 diff changeset	191
94eb6a8a7d56 Add helper function dmGrowBufRealloc() to handle the common case of Matti Hamalainen <ccr@tnsp.org> parents: 1509 diff changeset	192 return TRUE;
94eb6a8a7d56 Add helper function dmGrowBufRealloc() to handle the common case of Matti Hamalainen <ccr@tnsp.org> parents: 1509 diff changeset	193 }
94eb6a8a7d56 Add helper function dmGrowBufRealloc() to handle the common case of Matti Hamalainen <ccr@tnsp.org> parents: 1509 diff changeset	194
94eb6a8a7d56 Add helper function dmGrowBufRealloc() to handle the common case of Matti Hamalainen <ccr@tnsp.org> parents: 1509 diff changeset	195
1509 15afe578f0ae Add few comments to clarify things. Matti Hamalainen <ccr@tnsp.org> parents: 1508 diff changeset	196 //
15afe578f0ae Add few comments to clarify things. Matti Hamalainen <ccr@tnsp.org> parents: 1508 diff changeset	197 // Grow the buffer by "amount" bytes, but at least by buf->mingrow,
15afe578f0ae Add few comments to clarify things. Matti Hamalainen <ccr@tnsp.org> parents: 1508 diff changeset	198 // if there is not enough space for at least that amount compared to
15afe578f0ae Add few comments to clarify things. Matti Hamalainen <ccr@tnsp.org> parents: 1508 diff changeset	199 // current buffer "len".
15afe578f0ae Add few comments to clarify things. Matti Hamalainen <ccr@tnsp.org> parents: 1508 diff changeset	200 //
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	201 BOOL dmGrowBufGrow(DMGrowBuf *buf, const size_t amount)
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	202 {
1697 1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	203 size_t grow = (amount > buf->mingrow) ? amount : buf->mingrow;
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	204
1700 a2e65aa47554 Implement dmGrowBufConstCopy() and dmGrowBufCreateFrom(), and also Matti Hamalainen <ccr@tnsp.org> parents: 1699 diff changeset	205 if (buf->is_const)
a2e65aa47554 Implement dmGrowBufConstCopy() and dmGrowBufCreateFrom(), and also Matti Hamalainen <ccr@tnsp.org> parents: 1699 diff changeset	206 return FALSE;
a2e65aa47554 Implement dmGrowBufConstCopy() and dmGrowBufCreateFrom(), and also Matti Hamalainen <ccr@tnsp.org> parents: 1699 diff changeset	207
1697 1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	208 if (buf->data == NULL \|\|
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	209 (buf->backwards && amount >= buf->offs) \|\|
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	210 (!buf->backwards && buf->offs + amount >= buf->size))
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	211 {
1784 a29d38862037 Improve DMGrowBuf debugging slightly. Matti Hamalainen <ccr@tnsp.org> parents: 1782 diff changeset	212 DM_DBG("dmGrowBufGrow(%p, amount=%" DM_PRIu_SIZE_T "): grow=%" DM_PRIu_SIZE_T "\n",
a29d38862037 Improve DMGrowBuf debugging slightly. Matti Hamalainen <ccr@tnsp.org> parents: 1782 diff changeset	213 buf, amount, grow);
a29d38862037 Improve DMGrowBuf debugging slightly. Matti Hamalainen <ccr@tnsp.org> parents: 1782 diff changeset	214
1697 1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	215 if (!dmGrowBufRealloc(buf, buf->size + grow, TRUE))
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	216 return FALSE;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	217 }
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	218
1697 1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	219 buf->len += amount;
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	220 return TRUE;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	221 }
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	222
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	223
1509 15afe578f0ae Add few comments to clarify things. Matti Hamalainen <ccr@tnsp.org> parents: 1508 diff changeset	224 //
15afe578f0ae Add few comments to clarify things. Matti Hamalainen <ccr@tnsp.org> parents: 1508 diff changeset	225 // Grow the buffer if "nsize" is larger than the current buffer size.
15afe578f0ae Add few comments to clarify things. Matti Hamalainen <ccr@tnsp.org> parents: 1508 diff changeset	226 // Buffer is enlarged to nsize + mingrow.
15afe578f0ae Add few comments to clarify things. Matti Hamalainen <ccr@tnsp.org> parents: 1508 diff changeset	227 //
1455 a957b318fbe2 Add dmGrowBufCheckGrow() function. Matti Hamalainen <ccr@tnsp.org> parents: 1454 diff changeset	228 BOOL dmGrowBufCheckGrow(DMGrowBuf *buf, const size_t nsize)
a957b318fbe2 Add dmGrowBufCheckGrow() function. Matti Hamalainen <ccr@tnsp.org> parents: 1454 diff changeset	229 {
1700 a2e65aa47554 Implement dmGrowBufConstCopy() and dmGrowBufCreateFrom(), and also Matti Hamalainen <ccr@tnsp.org> parents: 1699 diff changeset	230 if (buf->is_const)
a2e65aa47554 Implement dmGrowBufConstCopy() and dmGrowBufCreateFrom(), and also Matti Hamalainen <ccr@tnsp.org> parents: 1699 diff changeset	231 return FALSE;
a2e65aa47554 Implement dmGrowBufConstCopy() and dmGrowBufCreateFrom(), and also Matti Hamalainen <ccr@tnsp.org> parents: 1699 diff changeset	232
1697 1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	233 if (buf->data == NULL \|\| nsize > buf->size)
1455 a957b318fbe2 Add dmGrowBufCheckGrow() function. Matti Hamalainen <ccr@tnsp.org> parents: 1454 diff changeset	234 {
1697 1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	235 if (!dmGrowBufRealloc(buf, nsize + buf->mingrow, TRUE))
1455 a957b318fbe2 Add dmGrowBufCheckGrow() function. Matti Hamalainen <ccr@tnsp.org> parents: 1454 diff changeset	236 return FALSE;
a957b318fbe2 Add dmGrowBufCheckGrow() function. Matti Hamalainen <ccr@tnsp.org> parents: 1454 diff changeset	237 }
a957b318fbe2 Add dmGrowBufCheckGrow() function. Matti Hamalainen <ccr@tnsp.org> parents: 1454 diff changeset	238
1707 a0986cfd6f9d More consistently use DMGrowBuf in the lib64gfx APIs, and implement Matti Hamalainen <ccr@tnsp.org> parents: 1706 diff changeset	239 if (nsize > buf->len)
a0986cfd6f9d More consistently use DMGrowBuf in the lib64gfx APIs, and implement Matti Hamalainen <ccr@tnsp.org> parents: 1706 diff changeset	240 buf->len = nsize;
a0986cfd6f9d More consistently use DMGrowBuf in the lib64gfx APIs, and implement Matti Hamalainen <ccr@tnsp.org> parents: 1706 diff changeset	241
1697 1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	242 return TRUE;
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	243 }
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	244
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	245
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	246 static void dmGrowBufUpdate(DMGrowBuf *buf)
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	247 {
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	248 if (buf->offs < buf->min_offs)
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	249 buf->min_offs = buf->offs;
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	250
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	251 if (buf->offs > buf->max_offs)
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	252 buf->max_offs = buf->offs;
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	253 }
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	254
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	255
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	256 BOOL dmGrowBufPut(DMGrowBuf buf, const Uint8 data, const size_t len)
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	257 {
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	258 if (data == NULL)
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	259 return FALSE;
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	260
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	261 if (!dmGrowBufGrow(buf, len))
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	262 return FALSE;
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	263
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	264 if (buf->backwards)
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	265 {
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	266 if (buf->literal)
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	267 {
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	268 buf->offs -= len;
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	269 memcpy(buf->data + buf->offs, data, len);
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	270 }
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	271 else
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	272 {
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	273 for (size_t n = 0; n < len; n++)
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	274 buf->data[buf->offs--] = data[n];
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	275 }
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	276 }
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	277 else
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	278 {
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	279 memcpy(buf->data + buf->offs, data, len);
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	280 buf->offs += len;
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	281 }
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	282
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	283 dmGrowBufUpdate(buf);
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	284
1455 a957b318fbe2 Add dmGrowBufCheckGrow() function. Matti Hamalainen <ccr@tnsp.org> parents: 1454 diff changeset	285 return TRUE;
a957b318fbe2 Add dmGrowBufCheckGrow() function. Matti Hamalainen <ccr@tnsp.org> parents: 1454 diff changeset	286 }
a957b318fbe2 Add dmGrowBufCheckGrow() function. Matti Hamalainen <ccr@tnsp.org> parents: 1454 diff changeset	287
a957b318fbe2 Add dmGrowBufCheckGrow() function. Matti Hamalainen <ccr@tnsp.org> parents: 1454 diff changeset	288
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	289 BOOL dmGrowBufPutU8(DMGrowBuf *buf, const Uint8 value)
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	290 {
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	291 if (!dmGrowBufGrow(buf, sizeof(Uint8)))
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	292 return FALSE;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	293
1697 1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	294 buf->data[buf->offs] = value;
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	295 if (buf->backwards)
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	296 buf->offs--;
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	297 else
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	298 buf->offs++;
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	299
1697 1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	300 dmGrowBufUpdate(buf);
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	301
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	302 return TRUE;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	303 }
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	304
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	305
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	306 BOOL dmGrowBufPutU16BE(DMGrowBuf *buf, const Uint16 val)
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	307 {
1697 1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	308 if (buf->literal && buf->backwards)
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	309 {
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	310 return
1706 311b14855a1e Ehm .. the boolean logic conditions used in dmGrowBufPutU{16,32}{LE,BE}() Matti Hamalainen <ccr@tnsp.org> parents: 1705 diff changeset	311 dmGrowBufPutU8(buf, val & 0xff) &&
311b14855a1e Ehm .. the boolean logic conditions used in dmGrowBufPutU{16,32}{LE,BE}() Matti Hamalainen <ccr@tnsp.org> parents: 1705 diff changeset	312 dmGrowBufPutU8(buf, (val >> 8) & 0xff);
1697 1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	313 }
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	314 else
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	315 {
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	316 return
1706 311b14855a1e Ehm .. the boolean logic conditions used in dmGrowBufPutU{16,32}{LE,BE}() Matti Hamalainen <ccr@tnsp.org> parents: 1705 diff changeset	317 dmGrowBufPutU8(buf, (val >> 8) & 0xff) &&
311b14855a1e Ehm .. the boolean logic conditions used in dmGrowBufPutU{16,32}{LE,BE}() Matti Hamalainen <ccr@tnsp.org> parents: 1705 diff changeset	318 dmGrowBufPutU8(buf, val & 0xff);
1697 1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	319 }
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	320 }
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	321
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	322
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	323 BOOL dmGrowBufPutU16LE(DMGrowBuf *buf, const Uint16 val)
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	324 {
1697 1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	325 if (buf->literal && buf->backwards)
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	326 {
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	327 return
1706 311b14855a1e Ehm .. the boolean logic conditions used in dmGrowBufPutU{16,32}{LE,BE}() Matti Hamalainen <ccr@tnsp.org> parents: 1705 diff changeset	328 dmGrowBufPutU8(buf, (val >> 8) & 0xff) &&
311b14855a1e Ehm .. the boolean logic conditions used in dmGrowBufPutU{16,32}{LE,BE}() Matti Hamalainen <ccr@tnsp.org> parents: 1705 diff changeset	329 dmGrowBufPutU8(buf, val & 0xff);
1697 1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	330 }
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	331 else
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	332 {
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	333 return
1706 311b14855a1e Ehm .. the boolean logic conditions used in dmGrowBufPutU{16,32}{LE,BE}() Matti Hamalainen <ccr@tnsp.org> parents: 1705 diff changeset	334 dmGrowBufPutU8(buf, val & 0xff) &&
311b14855a1e Ehm .. the boolean logic conditions used in dmGrowBufPutU{16,32}{LE,BE}() Matti Hamalainen <ccr@tnsp.org> parents: 1705 diff changeset	335 dmGrowBufPutU8(buf, (val >> 8) & 0xff);
1697 1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	336 }
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	337 }
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	338
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	339
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	340 BOOL dmGrowBufPutU32BE(DMGrowBuf *buf, const Uint32 val)
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	341 {
1697 1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	342 if (buf->literal && buf->backwards)
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	343 {
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	344 return
1706 311b14855a1e Ehm .. the boolean logic conditions used in dmGrowBufPutU{16,32}{LE,BE}() Matti Hamalainen <ccr@tnsp.org> parents: 1705 diff changeset	345 dmGrowBufPutU8(buf, (val >> 24) & 0xff) &&
311b14855a1e Ehm .. the boolean logic conditions used in dmGrowBufPutU{16,32}{LE,BE}() Matti Hamalainen <ccr@tnsp.org> parents: 1705 diff changeset	346 dmGrowBufPutU8(buf, (val >> 16) & 0xff) &&
311b14855a1e Ehm .. the boolean logic conditions used in dmGrowBufPutU{16,32}{LE,BE}() Matti Hamalainen <ccr@tnsp.org> parents: 1705 diff changeset	347 dmGrowBufPutU8(buf, (val >> 8) & 0xff) &&
311b14855a1e Ehm .. the boolean logic conditions used in dmGrowBufPutU{16,32}{LE,BE}() Matti Hamalainen <ccr@tnsp.org> parents: 1705 diff changeset	348 dmGrowBufPutU8(buf, val & 0xff);
1697 1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	349 }
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	350 else
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	351 {
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	352 return
1706 311b14855a1e Ehm .. the boolean logic conditions used in dmGrowBufPutU{16,32}{LE,BE}() Matti Hamalainen <ccr@tnsp.org> parents: 1705 diff changeset	353 dmGrowBufPutU8(buf, val & 0xff) &&
311b14855a1e Ehm .. the boolean logic conditions used in dmGrowBufPutU{16,32}{LE,BE}() Matti Hamalainen <ccr@tnsp.org> parents: 1705 diff changeset	354 dmGrowBufPutU8(buf, (val >> 8) & 0xff) &&
311b14855a1e Ehm .. the boolean logic conditions used in dmGrowBufPutU{16,32}{LE,BE}() Matti Hamalainen <ccr@tnsp.org> parents: 1705 diff changeset	355 dmGrowBufPutU8(buf, (val >> 16) & 0xff) &&
311b14855a1e Ehm .. the boolean logic conditions used in dmGrowBufPutU{16,32}{LE,BE}() Matti Hamalainen <ccr@tnsp.org> parents: 1705 diff changeset	356 dmGrowBufPutU8(buf, (val >> 24) & 0xff);
1697 1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	357 }
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	358 }
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	359
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	360
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	361 BOOL dmGrowBufPutU32LE(DMGrowBuf *buf, const Uint32 val)
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	362 {
1697 1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	363 if (buf->literal && buf->backwards)
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	364 {
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	365 return
1706 311b14855a1e Ehm .. the boolean logic conditions used in dmGrowBufPutU{16,32}{LE,BE}() Matti Hamalainen <ccr@tnsp.org> parents: 1705 diff changeset	366 dmGrowBufPutU8(buf, val & 0xff) &&
311b14855a1e Ehm .. the boolean logic conditions used in dmGrowBufPutU{16,32}{LE,BE}() Matti Hamalainen <ccr@tnsp.org> parents: 1705 diff changeset	367 dmGrowBufPutU8(buf, (val >> 8) & 0xff) &&
311b14855a1e Ehm .. the boolean logic conditions used in dmGrowBufPutU{16,32}{LE,BE}() Matti Hamalainen <ccr@tnsp.org> parents: 1705 diff changeset	368 dmGrowBufPutU8(buf, (val >> 16) & 0xff) &&
311b14855a1e Ehm .. the boolean logic conditions used in dmGrowBufPutU{16,32}{LE,BE}() Matti Hamalainen <ccr@tnsp.org> parents: 1705 diff changeset	369 dmGrowBufPutU8(buf, (val >> 24) & 0xff);
1697 1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	370 }
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	371 else
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	372 {
1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	373 return
1706 311b14855a1e Ehm .. the boolean logic conditions used in dmGrowBufPutU{16,32}{LE,BE}() Matti Hamalainen <ccr@tnsp.org> parents: 1705 diff changeset	374 dmGrowBufPutU8(buf, (val >> 24) & 0xff) &&
311b14855a1e Ehm .. the boolean logic conditions used in dmGrowBufPutU{16,32}{LE,BE}() Matti Hamalainen <ccr@tnsp.org> parents: 1705 diff changeset	375 dmGrowBufPutU8(buf, (val >> 16) & 0xff) &&
311b14855a1e Ehm .. the boolean logic conditions used in dmGrowBufPutU{16,32}{LE,BE}() Matti Hamalainen <ccr@tnsp.org> parents: 1705 diff changeset	376 dmGrowBufPutU8(buf, (val >> 8) & 0xff) &&
311b14855a1e Ehm .. the boolean logic conditions used in dmGrowBufPutU{16,32}{LE,BE}() Matti Hamalainen <ccr@tnsp.org> parents: 1705 diff changeset	377 dmGrowBufPutU8(buf, val & 0xff);
1697 1036b0dcccb5 Refactor DMGrowBuf so that there can be buffers that grow "backwards". Matti Hamalainen <ccr@tnsp.org> parents: 1694 diff changeset	378 }
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	379 }
1699 f71cd6691e05 Implement dmGrowBufGetU8(). Matti Hamalainen <ccr@tnsp.org> parents: 1697 diff changeset	380
f71cd6691e05 Implement dmGrowBufGetU8(). Matti Hamalainen <ccr@tnsp.org> parents: 1697 diff changeset	381
f71cd6691e05 Implement dmGrowBufGetU8(). Matti Hamalainen <ccr@tnsp.org> parents: 1697 diff changeset	382 BOOL dmGrowBufGetU8(DMGrowBuf buf, Uint8 value)
f71cd6691e05 Implement dmGrowBufGetU8(). Matti Hamalainen <ccr@tnsp.org> parents: 1697 diff changeset	383 {
1703 fcc568e03bed Clarify dmGrowBufGetU8() a bit. Matti Hamalainen <ccr@tnsp.org> parents: 1702 diff changeset	384 if (buf->backwards)
1699 f71cd6691e05 Implement dmGrowBufGetU8(). Matti Hamalainen <ccr@tnsp.org> parents: 1697 diff changeset	385 {
1703 fcc568e03bed Clarify dmGrowBufGetU8() a bit. Matti Hamalainen <ccr@tnsp.org> parents: 1702 diff changeset	386 if (buf->offs > 0)
fcc568e03bed Clarify dmGrowBufGetU8() a bit. Matti Hamalainen <ccr@tnsp.org> parents: 1702 diff changeset	387 *value = buf->data[buf->offs--];
fcc568e03bed Clarify dmGrowBufGetU8() a bit. Matti Hamalainen <ccr@tnsp.org> parents: 1702 diff changeset	388 else
fcc568e03bed Clarify dmGrowBufGetU8() a bit. Matti Hamalainen <ccr@tnsp.org> parents: 1702 diff changeset	389 return FALSE;
1699 f71cd6691e05 Implement dmGrowBufGetU8(). Matti Hamalainen <ccr@tnsp.org> parents: 1697 diff changeset	390 }
f71cd6691e05 Implement dmGrowBufGetU8(). Matti Hamalainen <ccr@tnsp.org> parents: 1697 diff changeset	391 else
f71cd6691e05 Implement dmGrowBufGetU8(). Matti Hamalainen <ccr@tnsp.org> parents: 1697 diff changeset	392 {
1744 e40227e994e2 Fix unitialized data accesses. Matti Hamalainen <ccr@tnsp.org> parents: 1707 diff changeset	393 if (buf->offs < buf->len)
1703 fcc568e03bed Clarify dmGrowBufGetU8() a bit. Matti Hamalainen <ccr@tnsp.org> parents: 1702 diff changeset	394 *value = buf->data[buf->offs++];
fcc568e03bed Clarify dmGrowBufGetU8() a bit. Matti Hamalainen <ccr@tnsp.org> parents: 1702 diff changeset	395 else
fcc568e03bed Clarify dmGrowBufGetU8() a bit. Matti Hamalainen <ccr@tnsp.org> parents: 1702 diff changeset	396 return FALSE;
1699 f71cd6691e05 Implement dmGrowBufGetU8(). Matti Hamalainen <ccr@tnsp.org> parents: 1697 diff changeset	397 }
f71cd6691e05 Implement dmGrowBufGetU8(). Matti Hamalainen <ccr@tnsp.org> parents: 1697 diff changeset	398
1703 fcc568e03bed Clarify dmGrowBufGetU8() a bit. Matti Hamalainen <ccr@tnsp.org> parents: 1702 diff changeset	399 return TRUE;
1699 f71cd6691e05 Implement dmGrowBufGetU8(). Matti Hamalainen <ccr@tnsp.org> parents: 1697 diff changeset	400 }

Mercurial > hg > dmlib

annotate src/dmgrowbuf.c @ 1785:86d10d5d4915