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Cleanup.

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This commit is contained in:
Branimir Karadžić 2018-10-25 22:16:10 -07:00
parent a4dc342554
commit 1eb853512e
3 changed files with 71 additions and 68 deletions
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83
tools/shaderc/shaderc.cpp
View File

@ -879,6 +879,13 @@ namespace bgfx
);
}
bx::StringView nextWord(bx::StringView& _parse)
{
bx::StringView word = bx::strWord(bx::strLTrimSpace(_parse) );
_parse = bx::strLTrimSpace(bx::StringView(word.getTerm(), _parse.getTerm() ) );
return word;
}
bool compileShader(const char* _varying, const char* _comment, char* _shader, uint32_t _shaderLen, Options& _options, bx::FileWriter* _writer)
{
uint32_t glsl = 0;
@ -1048,37 +1055,34 @@ namespace bgfx
bool compiled = false;
VaryingMap varyingMap;
const char* parse = _varying;
bx::StringView parse(_varying);
bx::StringView term(parse);
bool usesInterpolationQualifiers = false;
while (NULL != parse
&& '\0' != *parse)
while (!parse.isEmpty() )
{
parse = bx::strLTrimSpace(parse).getPtr();
parse = bx::strLTrimSpace(parse);
bx::StringView eol = bx::strFind(parse, ';');
if (eol.isEmpty() )
{
eol = bx::strFindEol(bx::StringView(parse, term.getTerm() ) );
}
else
{
eol.set(eol.getPtr(), term.getTerm() );
eol = bx::strFindEol(parse);
}
if (!eol.isEmpty() )
{
const char* precision = NULL;
const char* interpolation = NULL;
const char* typen = parse;
eol.set(eol.getPtr() + 1, parse.getTerm() );
bx::StringView precision;
bx::StringView interpolation;
bx::StringView typen = nextWord(parse);
if (0 == bx::strCmp(typen, "lowp", 4)
|| 0 == bx::strCmp(typen, "mediump", 7)
|| 0 == bx::strCmp(typen, "highp", 5) )
{
precision = typen;
typen = parse = bx::strLTrimSpace(bx::strSkipWord(parse) ).getPtr();
typen = nextWord(parse);
}
if (0 == bx::strCmp(typen, "flat", 4)
@ -1087,36 +1091,45 @@ namespace bgfx
|| 0 == bx::strCmp(typen, "centroid", 8) )
{
interpolation = typen;
typen = parse = bx::strLTrimSpace(bx::strSkipWord(parse) ).getPtr();
typen = nextWord(parse);
usesInterpolationQualifiers = true;
}
const char* name = parse = bx::strLTrimSpace(bx::strSkipWord(parse) ).getPtr();
const char* column = parse = bx::strLTrimSpace(bx::strSkipWord(parse) ).getPtr();
const char* semantics = parse = bx::strLTrimSpace( (*parse == ':' ? ++parse : parse) ).getPtr();
const char* assign = parse = bx::strLTrimSpace(bx::strSkipWord(parse) ).getPtr();
const char* init = parse = bx::strLTrimSpace( (*parse == '=' ? ++parse : parse) ).getPtr();
bx::StringView name = nextWord(parse);
bx::StringView column = bx::strSubstr(parse, 0, 1);
bx::StringView semantics;
if (0 == bx::strCmp(column, ":", 1) )
{
parse = bx::strLTrimSpace(bx::StringView(parse.getPtr() + 1, parse.getTerm() ) );
semantics = nextWord(parse);
}
if (typen < eol.getPtr()
&& name < eol.getPtr()
&& column < eol.getPtr()
&& ':' == *column
&& semantics < eol.getPtr() )
bx::StringView assign = bx::strSubstr(parse, 0, 1);
bx::StringView init;
if (0 == bx::strCmp(assign, "=", 1))
{
parse = bx::strLTrimSpace(bx::StringView(parse.getPtr() + 1, parse.getTerm() ) );
init.set(parse.getPtr(), eol.getPtr() );
}
if (!typen.isEmpty()
&& !name.isEmpty()
&& !semantics.isEmpty() )
{
Varying var;
if (NULL != precision)
if (!precision.isEmpty() )
{
var.m_precision.assign(precision, bx::strSkipWord(precision)-precision);
var.m_precision.assign(precision.getPtr(), precision.getTerm() );
}
if (NULL != interpolation)
if (!interpolation.isEmpty() )
{
var.m_interpolation.assign(interpolation, bx::strSkipWord(interpolation)-interpolation);
var.m_interpolation.assign(interpolation.getPtr(), interpolation.getTerm() );
}
var.m_type.assign(typen, bx::strSkipWord(typen)-typen);
var.m_name.assign(name, bx::strSkipWord(name)-name);
var.m_semantics.assign(semantics, bx::strSkipWord(semantics)-semantics);
var.m_type.assign(typen.getPtr(), typen.getTerm() );
var.m_name.assign(name.getPtr(), name.getTerm() );
var.m_semantics.assign(semantics.getPtr(), semantics.getTerm() );
if (d3d == 9
&& var.m_semantics == "BITANGENT")
@ -1124,17 +1137,15 @@ namespace bgfx
var.m_semantics = "BINORMAL";
}
if (assign < eol.getPtr()
&& '=' == *assign
&& init < eol.getPtr() )
if (!init.isEmpty() )
{
var.m_init.assign(init, eol.getPtr()-init);
var.m_init.assign(init.getPtr(), init.getTerm() );
}
varyingMap.insert(std::make_pair(var.m_name, var) );
}
parse = bx::strLTrimSpace(bx::strFindNl(bx::StringView(eol.getPtr(), term.getTerm() ) ) ).getPtr();
parse = bx::strLTrimSpace(bx::strFindNl(bx::StringView(eol.getPtr(), term.getTerm() ) ) );
}
}

2
tools/shaderc/shaderc.h
View File

@ -105,6 +105,8 @@ namespace bgfx
uint32_t m_size;
};
bx::StringView nextWord(bx::StringView& _parse);
#define BGFX_UNIFORM_FRAGMENTBIT UINT8_C(0x10)
#define BGFX_UNIFORM_SAMPLERBIT UINT8_C(0x20)

54
tools/shaderc/shaderc_glsl.cpp
View File

@ -104,17 +104,15 @@ namespace bgfx { namespace glsl
if (target != kGlslTargetMetal)
{
const char* parse = optimizedShader;
bx::StringView parse(optimizedShader);
while (NULL != parse
&& *parse != '\0')
while (!parse.isEmpty() )
{
parse = bx::strLTrimSpace(parse).getPtr();
const bx::StringView eol = bx::strFind(parse, ';');
parse = bx::strLTrimSpace(parse);
bx::StringView eol = bx::strFind(parse, ';');
if (!eol.isEmpty() )
{
const char* qualifier = parse;
parse = bx::strLTrimSpace(bx::strSkipWord(parse) ).getPtr();
bx::StringView qualifier = nextWord(parse);
if (0 == bx::strCmp(qualifier, "attribute", 9)
|| 0 == bx::strCmp(qualifier, "varying", 7)
@ -123,39 +121,38 @@ namespace bgfx { namespace glsl
)
{
// skip attributes and varyings.
parse = eol.getPtr() + 1;
parse.set(eol.getPtr() + 1, parse.getTerm() );
continue;
}
if (0 == bx::strCmp(parse, "tmpvar", 6) )
{
// skip temporaries
parse = eol.getPtr() + 1;
parse.set(eol.getPtr() + 1, parse.getTerm() );
continue;
}
if (0 != bx::strCmp(qualifier, "uniform", 7) )
{
// end if there is no uniform keyword.
parse = NULL;
parse.clear();
continue;
}
const char* precision = NULL;
const char* typen = parse;
bx::StringView precision;
bx::StringView typen = nextWord(parse);
if (0 == bx::strCmp(typen, "lowp", 4)
|| 0 == bx::strCmp(typen, "mediump", 7)
|| 0 == bx::strCmp(typen, "highp", 5) )
{
precision = typen;
typen = parse = bx::strLTrimSpace(bx::strSkipWord(parse) ).getPtr();
typen = nextWord(parse);
}
BX_UNUSED(precision);
char uniformType[256];
parse = bx::strSkipWord(parse);
if (0 == bx::strCmp(typen, "sampler", 7) )
{
@ -163,45 +160,38 @@ namespace bgfx { namespace glsl
}
else
{
bx::strCopy(uniformType, int32_t(parse-typen+1), typen);
bx::strCopy(uniformType, BX_COUNTOF(uniformType), typen);
}
const char* name = parse = bx::strLTrimSpace(parse).getPtr();
bx::StringView name = nextWord(parse);
char uniformName[256];
uint8_t num = 1;
bx::StringView array = bx::strFind(bx::StringView(name, int32_t(eol.getPtr()-parse) ), "[");
if (!array.isEmpty() )
bx::StringView array = bx::strSubstr(parse, 0, 1);
if (0 == bx::strCmp(array, "[", 1) )
{
bx::strCopy(uniformName, int32_t(array.getPtr()-name+1), name);
parse = bx::strLTrimSpace(bx::StringView(parse.getPtr() + 1, parse.getTerm() ) );
char arraySize[32];
bx::StringView end = bx::strFind(bx::StringView(array.getPtr(), int32_t(eol.getPtr()-array.getPtr() ) ), "]");
bx::strCopy(arraySize, int32_t(end.getPtr()-array.getPtr() ), array.getPtr()+1);
uint32_t tmp;
bx::fromString(&tmp, arraySize);
bx::fromString(&tmp, parse);
num = uint8_t(tmp);
}
else
{
bx::strCopy(uniformName, int32_t(eol.getPtr() -name+1), name);
}
Uniform un;
un.type = nameToUniformTypeEnum(uniformType);
if (UniformType::Count != un.type)
{
BX_TRACE("name: %s (type %d, num %d)", uniformName, un.type, num);
un.name.assign(name.getPtr(), name.getTerm());
BX_TRACE("name: %s (type %d, num %d)", un.name.c_str(), un.type, num);
un.name = uniformName;
un.num = num;
un.regIndex = 0;
un.regCount = num;
uniforms.push_back(un);
}
parse = eol.getPtr() + 1;
parse = bx::strLTrimSpace(bx::strFindNl(bx::StringView(eol.getPtr(), parse.getTerm() ) ) );
}
}
}
@ -226,7 +216,7 @@ namespace bgfx { namespace glsl
const char* typen = parse.getPtr();
char uniformType[256];
parse = bx::strSkipWord(parse.getPtr() );
parse = bx::strWord(parse).getPtr();
bx::strCopy(uniformType, int32_t(parse.getPtr()-typen+1), typen);
const char* name = bx::strLTrimSpace(parse).getPtr();
parse.set(name, optShader.getTerm() );