wine/dlls/d3dcompiler_43/utils.c
2023-11-22 10:06:33 +01:00

569 lines
21 KiB
C

/*
* Copyright 2008 Stefan Dösinger
* Copyright 2009 Matteo Bruni
* Copyright 2008-2009 Henri Verbeet for CodeWeavers
* Copyright 2010 Rico Schüller
* Copyright 2012 Matteo Bruni for CodeWeavers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*
*/
#include <stdio.h>
#include "d3dcompiler_private.h"
WINE_DEFAULT_DEBUG_CHANNEL(d3dcompiler);
#define WINE_D3DCOMPILER_TO_STR(x) case x: return #x
const char *debug_d3dcompiler_shader_variable_class(D3D_SHADER_VARIABLE_CLASS c)
{
switch (c)
{
WINE_D3DCOMPILER_TO_STR(D3D_SVC_SCALAR);
WINE_D3DCOMPILER_TO_STR(D3D_SVC_VECTOR);
WINE_D3DCOMPILER_TO_STR(D3D_SVC_MATRIX_ROWS);
WINE_D3DCOMPILER_TO_STR(D3D_SVC_MATRIX_COLUMNS);
WINE_D3DCOMPILER_TO_STR(D3D_SVC_OBJECT);
WINE_D3DCOMPILER_TO_STR(D3D_SVC_STRUCT);
WINE_D3DCOMPILER_TO_STR(D3D_SVC_INTERFACE_CLASS);
WINE_D3DCOMPILER_TO_STR(D3D_SVC_INTERFACE_POINTER);
default:
FIXME("Unrecognized D3D_SHADER_VARIABLE_CLASS %#x.\n", c);
return "unrecognized";
}
}
const char *debug_d3dcompiler_shader_variable_type(D3D_SHADER_VARIABLE_TYPE t)
{
switch (t)
{
WINE_D3DCOMPILER_TO_STR(D3D_SVT_VOID);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_BOOL);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_INT);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_FLOAT);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_STRING);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_TEXTURE);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_TEXTURE1D);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_TEXTURE2D);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_TEXTURE3D);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_TEXTURECUBE);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_SAMPLER);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_PIXELSHADER);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_VERTEXSHADER);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_UINT);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_UINT8);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_GEOMETRYSHADER);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_RASTERIZER);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_DEPTHSTENCIL);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_BLEND);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_BUFFER);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_CBUFFER);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_TBUFFER);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_TEXTURE1DARRAY);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_TEXTURE2DARRAY);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_RENDERTARGETVIEW);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_DEPTHSTENCILVIEW);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_TEXTURE2DMS);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_TEXTURE2DMSARRAY);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_TEXTURECUBEARRAY);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_HULLSHADER);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_DOMAINSHADER);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_INTERFACE_POINTER);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_COMPUTESHADER);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_DOUBLE);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_RWTEXTURE1D);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_RWTEXTURE1DARRAY);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_RWTEXTURE2D);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_RWTEXTURE2DARRAY);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_RWTEXTURE3D);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_RWBUFFER);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_BYTEADDRESS_BUFFER);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_RWBYTEADDRESS_BUFFER);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_STRUCTURED_BUFFER);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_RWSTRUCTURED_BUFFER);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_APPEND_STRUCTURED_BUFFER);
WINE_D3DCOMPILER_TO_STR(D3D_SVT_CONSUME_STRUCTURED_BUFFER);
default:
FIXME("Unrecognized D3D_SHADER_VARIABLE_TYPE %#x.\n", t);
return "unrecognized";
}
}
const char *debug_d3dcompiler_d3d_blob_part(D3D_BLOB_PART part)
{
switch(part)
{
WINE_D3DCOMPILER_TO_STR(D3D_BLOB_INPUT_SIGNATURE_BLOB);
WINE_D3DCOMPILER_TO_STR(D3D_BLOB_OUTPUT_SIGNATURE_BLOB);
WINE_D3DCOMPILER_TO_STR(D3D_BLOB_INPUT_AND_OUTPUT_SIGNATURE_BLOB);
WINE_D3DCOMPILER_TO_STR(D3D_BLOB_PATCH_CONSTANT_SIGNATURE_BLOB);
WINE_D3DCOMPILER_TO_STR(D3D_BLOB_ALL_SIGNATURE_BLOB);
WINE_D3DCOMPILER_TO_STR(D3D_BLOB_DEBUG_INFO);
WINE_D3DCOMPILER_TO_STR(D3D_BLOB_LEGACY_SHADER);
WINE_D3DCOMPILER_TO_STR(D3D_BLOB_XNA_PREPASS_SHADER);
WINE_D3DCOMPILER_TO_STR(D3D_BLOB_XNA_SHADER);
WINE_D3DCOMPILER_TO_STR(D3D_BLOB_PDB);
WINE_D3DCOMPILER_TO_STR(D3D_BLOB_PRIVATE_DATA);
WINE_D3DCOMPILER_TO_STR(D3D_BLOB_ROOT_SIGNATURE);
WINE_D3DCOMPILER_TO_STR(D3D_BLOB_DEBUG_NAME);
WINE_D3DCOMPILER_TO_STR(D3D_BLOB_TEST_ALTERNATE_SHADER);
WINE_D3DCOMPILER_TO_STR(D3D_BLOB_TEST_COMPILE_DETAILS);
WINE_D3DCOMPILER_TO_STR(D3D_BLOB_TEST_COMPILE_PERF);
WINE_D3DCOMPILER_TO_STR(D3D_BLOB_TEST_COMPILE_REPORT);
default:
FIXME("Unrecognized D3D_BLOB_PART %#x\n", part);
return "unrecognized";
}
}
const char *debug_print_srcmod(uint32_t mod)
{
switch (mod)
{
WINE_D3DCOMPILER_TO_STR(BWRITERSPSM_NEG);
WINE_D3DCOMPILER_TO_STR(BWRITERSPSM_BIAS);
WINE_D3DCOMPILER_TO_STR(BWRITERSPSM_BIASNEG);
WINE_D3DCOMPILER_TO_STR(BWRITERSPSM_SIGN);
WINE_D3DCOMPILER_TO_STR(BWRITERSPSM_SIGNNEG);
WINE_D3DCOMPILER_TO_STR(BWRITERSPSM_COMP);
WINE_D3DCOMPILER_TO_STR(BWRITERSPSM_X2);
WINE_D3DCOMPILER_TO_STR(BWRITERSPSM_X2NEG);
WINE_D3DCOMPILER_TO_STR(BWRITERSPSM_DZ);
WINE_D3DCOMPILER_TO_STR(BWRITERSPSM_DW);
WINE_D3DCOMPILER_TO_STR(BWRITERSPSM_ABS);
WINE_D3DCOMPILER_TO_STR(BWRITERSPSM_ABSNEG);
WINE_D3DCOMPILER_TO_STR(BWRITERSPSM_NOT);
default:
FIXME("Unrecognized source modifier %#x.\n", mod);
return "unrecognized_src_mod";
}
}
#undef WINE_D3DCOMPILER_TO_STR
const char *debug_print_dstmod(uint32_t mod)
{
switch (mod)
{
case 0:
return "";
case BWRITERSPDM_SATURATE:
return "_sat";
case BWRITERSPDM_PARTIALPRECISION:
return "_pp";
case BWRITERSPDM_MSAMPCENTROID:
return "_centroid";
case BWRITERSPDM_SATURATE | BWRITERSPDM_PARTIALPRECISION:
return "_sat_pp";
case BWRITERSPDM_SATURATE | BWRITERSPDM_MSAMPCENTROID:
return "_sat_centroid";
case BWRITERSPDM_PARTIALPRECISION | BWRITERSPDM_MSAMPCENTROID:
return "_pp_centroid";
case BWRITERSPDM_SATURATE | BWRITERSPDM_PARTIALPRECISION | BWRITERSPDM_MSAMPCENTROID:
return "_sat_pp_centroid";
default:
return "Unexpected modifier\n";
}
}
const char *debug_print_shift(uint32_t shift)
{
static const char * const shiftstrings[] =
{
"",
"_x2",
"_x4",
"_x8",
"_x16",
"_x32",
"",
"",
"",
"",
"",
"",
"_d16",
"_d8",
"_d4",
"_d2",
};
return shiftstrings[shift];
}
static const char *get_regname(const struct shader_reg *reg)
{
switch (reg->type)
{
case BWRITERSPR_TEMP:
return wine_dbg_sprintf("r%u", reg->regnum);
case BWRITERSPR_INPUT:
return wine_dbg_sprintf("v%u", reg->regnum);
case BWRITERSPR_CONST:
return wine_dbg_sprintf("c%u", reg->regnum);
case BWRITERSPR_ADDR:
return wine_dbg_sprintf("a%u", reg->regnum);
case BWRITERSPR_TEXTURE:
return wine_dbg_sprintf("t%u", reg->regnum);
case BWRITERSPR_RASTOUT:
switch (reg->regnum)
{
case BWRITERSRO_POSITION: return "oPos";
case BWRITERSRO_FOG: return "oFog";
case BWRITERSRO_POINT_SIZE: return "oPts";
default: return "Unexpected RASTOUT";
}
case BWRITERSPR_ATTROUT:
return wine_dbg_sprintf("oD%u", reg->regnum);
case BWRITERSPR_TEXCRDOUT:
return wine_dbg_sprintf("oT%u", reg->regnum);
case BWRITERSPR_OUTPUT:
return wine_dbg_sprintf("o%u", reg->regnum);
case BWRITERSPR_CONSTINT:
return wine_dbg_sprintf("i%u", reg->regnum);
case BWRITERSPR_COLOROUT:
return wine_dbg_sprintf("oC%u", reg->regnum);
case BWRITERSPR_DEPTHOUT:
return "oDepth";
case BWRITERSPR_SAMPLER:
return wine_dbg_sprintf("s%u", reg->regnum);
case BWRITERSPR_CONSTBOOL:
return wine_dbg_sprintf("b%u", reg->regnum);
case BWRITERSPR_LOOP:
return "aL";
case BWRITERSPR_MISCTYPE:
switch (reg->regnum)
{
case 0: return "vPos";
case 1: return "vFace";
default: return "unexpected misctype";
}
case BWRITERSPR_LABEL:
return wine_dbg_sprintf("l%u", reg->regnum);
case BWRITERSPR_PREDICATE:
return wine_dbg_sprintf("p%u", reg->regnum);
default:
return wine_dbg_sprintf("unknown regname %#x", reg->type);
}
}
static const char *debug_print_writemask(uint32_t mask)
{
char ret[6];
unsigned char pos = 1;
if(mask == BWRITERSP_WRITEMASK_ALL) return "";
ret[0] = '.';
if(mask & BWRITERSP_WRITEMASK_0) ret[pos++] = 'x';
if(mask & BWRITERSP_WRITEMASK_1) ret[pos++] = 'y';
if(mask & BWRITERSP_WRITEMASK_2) ret[pos++] = 'z';
if(mask & BWRITERSP_WRITEMASK_3) ret[pos++] = 'w';
ret[pos] = 0;
return wine_dbg_sprintf("%s", ret);
}
static const char *debug_print_swizzle(uint32_t arg)
{
char ret[6];
unsigned int i;
uint32_t swizzle[4];
switch (arg)
{
case BWRITERVS_NOSWIZZLE:
return "";
case BWRITERVS_SWIZZLE_X:
return ".x";
case BWRITERVS_SWIZZLE_Y:
return ".y";
case BWRITERVS_SWIZZLE_Z:
return ".z";
case BWRITERVS_SWIZZLE_W:
return ".w";
}
swizzle[0] = arg & 3;
swizzle[1] = (arg >> 2) & 3;
swizzle[2] = (arg >> 4) & 3;
swizzle[3] = (arg >> 6) & 3;
ret[0] = '.';
for (i = 0; i < 4; ++i)
{
switch (swizzle[i])
{
case 0: ret[1 + i] = 'x'; break;
case 1: ret[1 + i] = 'y'; break;
case 2: ret[1 + i] = 'z'; break;
case 3: ret[1 + i] = 'w'; break;
}
}
ret[5] = '\0';
return wine_dbg_sprintf("%s", ret);
}
static const char *debug_print_relarg(const struct shader_reg *reg)
{
const char *short_swizzle;
if (!reg->rel_reg) return "";
short_swizzle = debug_print_swizzle(reg->rel_reg->swizzle);
if (reg->rel_reg->type == BWRITERSPR_ADDR)
return wine_dbg_sprintf("[a%u%s]", reg->rel_reg->regnum, short_swizzle);
else if(reg->rel_reg->type == BWRITERSPR_LOOP && reg->rel_reg->regnum == 0)
return wine_dbg_sprintf("[aL%s]", short_swizzle);
else
return "Unexpected relative addressing argument";
}
const char *debug_print_dstreg(const struct shader_reg *reg)
{
return wine_dbg_sprintf("%s%s%s", get_regname(reg),
debug_print_relarg(reg),
debug_print_writemask(reg->writemask));
}
const char *debug_print_srcreg(const struct shader_reg *reg)
{
switch (reg->srcmod)
{
case BWRITERSPSM_NONE:
return wine_dbg_sprintf("%s%s%s", get_regname(reg),
debug_print_relarg(reg),
debug_print_swizzle(reg->swizzle));
case BWRITERSPSM_NEG:
return wine_dbg_sprintf("-%s%s%s", get_regname(reg),
debug_print_relarg(reg),
debug_print_swizzle(reg->swizzle));
case BWRITERSPSM_BIAS:
return wine_dbg_sprintf("%s%s_bias%s", get_regname(reg),
debug_print_relarg(reg),
debug_print_swizzle(reg->swizzle));
case BWRITERSPSM_BIASNEG:
return wine_dbg_sprintf("-%s%s_bias%s", get_regname(reg),
debug_print_relarg(reg),
debug_print_swizzle(reg->swizzle));
case BWRITERSPSM_SIGN:
return wine_dbg_sprintf("%s%s_bx2%s", get_regname(reg),
debug_print_relarg(reg),
debug_print_swizzle(reg->swizzle));
case BWRITERSPSM_SIGNNEG:
return wine_dbg_sprintf("-%s%s_bx2%s", get_regname(reg),
debug_print_relarg(reg),
debug_print_swizzle(reg->swizzle));
case BWRITERSPSM_COMP:
return wine_dbg_sprintf("1 - %s%s%s", get_regname(reg),
debug_print_relarg(reg),
debug_print_swizzle(reg->swizzle));
case BWRITERSPSM_X2:
return wine_dbg_sprintf("%s%s_x2%s", get_regname(reg),
debug_print_relarg(reg),
debug_print_swizzle(reg->swizzle));
case BWRITERSPSM_X2NEG:
return wine_dbg_sprintf("-%s%s_x2%s", get_regname(reg),
debug_print_relarg(reg),
debug_print_swizzle(reg->swizzle));
case BWRITERSPSM_DZ:
return wine_dbg_sprintf("%s%s_dz%s", get_regname(reg),
debug_print_relarg(reg),
debug_print_swizzle(reg->swizzle));
case BWRITERSPSM_DW:
return wine_dbg_sprintf("%s%s_dw%s", get_regname(reg),
debug_print_relarg(reg),
debug_print_swizzle(reg->swizzle));
case BWRITERSPSM_ABS:
return wine_dbg_sprintf("%s%s_abs%s", get_regname(reg),
debug_print_relarg(reg),
debug_print_swizzle(reg->swizzle));
case BWRITERSPSM_ABSNEG:
return wine_dbg_sprintf("-%s%s_abs%s", get_regname(reg),
debug_print_relarg(reg),
debug_print_swizzle(reg->swizzle));
case BWRITERSPSM_NOT:
return wine_dbg_sprintf("!%s%s%s", get_regname(reg),
debug_print_relarg(reg),
debug_print_swizzle(reg->swizzle));
}
return "Unknown modifier";
}
const char *debug_print_comp(uint32_t comp)
{
switch (comp)
{
case BWRITER_COMPARISON_NONE: return "";
case BWRITER_COMPARISON_GT: return "_gt";
case BWRITER_COMPARISON_EQ: return "_eq";
case BWRITER_COMPARISON_GE: return "_ge";
case BWRITER_COMPARISON_LT: return "_lt";
case BWRITER_COMPARISON_NE: return "_ne";
case BWRITER_COMPARISON_LE: return "_le";
default: return "_unknown";
}
}
const char *debug_print_opcode(uint32_t opcode)
{
switch (opcode)
{
case BWRITERSIO_NOP: return "nop";
case BWRITERSIO_MOV: return "mov";
case BWRITERSIO_ADD: return "add";
case BWRITERSIO_SUB: return "sub";
case BWRITERSIO_MAD: return "mad";
case BWRITERSIO_MUL: return "mul";
case BWRITERSIO_RCP: return "rcp";
case BWRITERSIO_RSQ: return "rsq";
case BWRITERSIO_DP3: return "dp3";
case BWRITERSIO_DP4: return "dp4";
case BWRITERSIO_MIN: return "min";
case BWRITERSIO_MAX: return "max";
case BWRITERSIO_SLT: return "slt";
case BWRITERSIO_SGE: return "sge";
case BWRITERSIO_EXP: return "exp";
case BWRITERSIO_LOG: return "log";
case BWRITERSIO_LIT: return "lit";
case BWRITERSIO_DST: return "dst";
case BWRITERSIO_LRP: return "lrp";
case BWRITERSIO_FRC: return "frc";
case BWRITERSIO_M4x4: return "m4x4";
case BWRITERSIO_M4x3: return "m4x3";
case BWRITERSIO_M3x4: return "m3x4";
case BWRITERSIO_M3x3: return "m3x3";
case BWRITERSIO_M3x2: return "m3x2";
case BWRITERSIO_CALL: return "call";
case BWRITERSIO_CALLNZ: return "callnz";
case BWRITERSIO_LOOP: return "loop";
case BWRITERSIO_RET: return "ret";
case BWRITERSIO_ENDLOOP: return "endloop";
case BWRITERSIO_LABEL: return "label";
case BWRITERSIO_DCL: return "dcl";
case BWRITERSIO_POW: return "pow";
case BWRITERSIO_CRS: return "crs";
case BWRITERSIO_SGN: return "sgn";
case BWRITERSIO_ABS: return "abs";
case BWRITERSIO_NRM: return "nrm";
case BWRITERSIO_SINCOS: return "sincos";
case BWRITERSIO_REP: return "rep";
case BWRITERSIO_ENDREP: return "endrep";
case BWRITERSIO_IF: return "if";
case BWRITERSIO_IFC: return "ifc";
case BWRITERSIO_ELSE: return "else";
case BWRITERSIO_ENDIF: return "endif";
case BWRITERSIO_BREAK: return "break";
case BWRITERSIO_BREAKC: return "breakc";
case BWRITERSIO_MOVA: return "mova";
case BWRITERSIO_DEFB: return "defb";
case BWRITERSIO_DEFI: return "defi";
case BWRITERSIO_TEXCOORD: return "texcoord";
case BWRITERSIO_TEXKILL: return "texkill";
case BWRITERSIO_TEX: return "tex";
case BWRITERSIO_TEXBEM: return "texbem";
case BWRITERSIO_TEXBEML: return "texbeml";
case BWRITERSIO_TEXREG2AR: return "texreg2ar";
case BWRITERSIO_TEXREG2GB: return "texreg2gb";
case BWRITERSIO_TEXM3x2PAD: return "texm3x2pad";
case BWRITERSIO_TEXM3x2TEX: return "texm3x2tex";
case BWRITERSIO_TEXM3x3PAD: return "texm3x3pad";
case BWRITERSIO_TEXM3x3TEX: return "texm3x3tex";
case BWRITERSIO_TEXM3x3SPEC: return "texm3x3vspec";
case BWRITERSIO_TEXM3x3VSPEC: return "texm3x3vspec";
case BWRITERSIO_EXPP: return "expp";
case BWRITERSIO_LOGP: return "logp";
case BWRITERSIO_CND: return "cnd";
case BWRITERSIO_DEF: return "def";
case BWRITERSIO_TEXREG2RGB: return "texreg2rgb";
case BWRITERSIO_TEXDP3TEX: return "texdp3tex";
case BWRITERSIO_TEXM3x2DEPTH: return "texm3x2depth";
case BWRITERSIO_TEXDP3: return "texdp3";
case BWRITERSIO_TEXM3x3: return "texm3x3";
case BWRITERSIO_TEXDEPTH: return "texdepth";
case BWRITERSIO_CMP: return "cmp";
case BWRITERSIO_BEM: return "bem";
case BWRITERSIO_DP2ADD: return "dp2add";
case BWRITERSIO_DSX: return "dsx";
case BWRITERSIO_DSY: return "dsy";
case BWRITERSIO_TEXLDD: return "texldd";
case BWRITERSIO_SETP: return "setp";
case BWRITERSIO_TEXLDL: return "texldl";
case BWRITERSIO_BREAKP: return "breakp";
case BWRITERSIO_PHASE: return "phase";
case BWRITERSIO_TEXLDP: return "texldp";
case BWRITERSIO_TEXLDB: return "texldb";
default: return "unknown";
}
}
void skip_u32_unknown(const char **ptr, unsigned int count)
{
unsigned int i;
uint32_t u32;
FIXME("Skipping %u unknown u32s:\n", count);
for (i = 0; i < count; ++i)
{
u32 = read_u32(ptr);
FIXME("\t0x%08x\n", u32);
}
}
void compilation_message(struct compilation_messages *msg, const char *fmt, va_list args)
{
char* buffer;
int rc, size;
if (msg->capacity == 0)
{
msg->string = calloc(1, MESSAGEBUFFER_INITIAL_SIZE);
if (msg->string == NULL)
{
ERR("Error allocating memory for parser messages\n");
return;
}
msg->capacity = MESSAGEBUFFER_INITIAL_SIZE;
}
while (1)
{
rc = vsnprintf(msg->string + msg->size,
msg->capacity - msg->size, fmt, args);
if (rc < 0 || rc >= msg->capacity - msg->size)
{
size = msg->capacity * 2;
buffer = realloc(msg->string, size);
if (buffer == NULL)
{
ERR("Error reallocating memory for parser messages\n");
return;
}
msg->string = buffer;
msg->capacity = size;
}
else
{
TRACE("%s", msg->string + msg->size);
msg->size += rc;
return;
}
}
}