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obj model loader for #183

This commit is contained in:
Vadim Lopatin 2016-03-31 15:47:05 +03:00
parent 06d009d928
commit 7fc9dd9495
13 changed files with 1774 additions and 508 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
dlangui-monod-linux.dproj
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@ -256,6 +256,7 @@
<Compile Include="src\dlangui\core\linestream.d" />
<Compile Include="src\dlangui\core\logger.d" />
<Compile Include="src\dlangui\core\math3d.d" />
<Compile Include="src\dlangui\core\parseutils.d" />
<Compile Include="src\dlangui\core\settings.d" />
<Compile Include="src\dlangui\core\signals.d" />
<Compile Include="src\dlangui\core\stdaction.d" />
@ -270,6 +271,7 @@
<Compile Include="src\dlangui\dml\annotations.d" />
<Compile Include="src\dlangui\dml\dmlhighlight.d" />
<Compile Include="src\dlangui\dml\parser.d" />
<Compile Include="src\dlangui\dml\tokenizer.d" />
<Compile Include="src\dlangui\graphics\colors.d" />
<Compile Include="src\dlangui\graphics\drawbuf.d" />
<Compile Include="src\dlangui\graphics\domrender.d" />
@ -286,6 +288,7 @@
<Compile Include="src\dlangui\graphics\scene\mesh.d" />
<Compile Include="src\dlangui\graphics\scene\model.d" />
<Compile Include="src\dlangui\graphics\scene\node.d" />
<Compile Include="src\dlangui\graphics\scene\objimport.d" />
<Compile Include="src\dlangui\graphics\scene\scene3d.d" />
<Compile Include="src\dlangui\graphics\scene\transform.d" />
<Compile Include="src\dlangui\graphics\xpm\xpmcolors.d" />

3
dlangui-monod-osx.dproj
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@ -115,6 +115,7 @@
<Compile Include="src\dlangui\core\linestream.d" />
<Compile Include="src\dlangui\core\logger.d" />
<Compile Include="src\dlangui\core\math3d.d" />
<Compile Include="src\dlangui\core\parseutils.d" />
<Compile Include="src\dlangui\core\settings.d" />
<Compile Include="src\dlangui\core\signals.d" />
<Compile Include="src\dlangui\core\stdaction.d" />
@ -129,6 +130,7 @@
<Compile Include="src\dlangui\dml\annotations.d" />
<Compile Include="src\dlangui\dml\dmlhighlight.d" />
<Compile Include="src\dlangui\dml\parser.d" />
<Compile Include="src\dlangui\dml\tokenizer.d" />
<Compile Include="src\dlangui\graphics\colors.d" />
<Compile Include="src\dlangui\graphics\drawbuf.d" />
<Compile Include="src\dlangui\graphics\domrender.d" />
@ -145,6 +147,7 @@
<Compile Include="src\dlangui\graphics\scene\mesh.d" />
<Compile Include="src\dlangui\graphics\scene\model.d" />
<Compile Include="src\dlangui\graphics\scene\node.d" />
<Compile Include="src\dlangui\graphics\scene\objimport.d" />
<Compile Include="src\dlangui\graphics\scene\scene3d.d" />
<Compile Include="src\dlangui\graphics\scene\transform.d" />
<Compile Include="src\dlangui\graphics\xpm\reader.d" />

3
dlangui-msvc.visualdproj
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@ -748,6 +748,7 @@
<File path="src\dlangui\core\linestream.d" />
<File path="src\dlangui\core\logger.d" />
<File path="src\dlangui\core\math3d.d" />
<File path="src\dlangui\core\parseutils.d" />
<File path="src\dlangui\core\queue.d" />
<File path="src\dlangui\core\settings.d" />
<File path="src\dlangui\core\signals.d" />
@ -767,6 +768,7 @@
<File path="src\dlangui\dml\annotations.d" />
<File path="src\dlangui\dml\dmlhighlight.d" />
<File path="src\dlangui\dml\parser.d" />
<File path="src\dlangui\dml\tokenizer.d" />
</Folder>
<Folder name="graphics">
<Folder name="scene">
@ -777,6 +779,7 @@
<File path="src\dlangui\graphics\scene\mesh.d" />
<File path="src\dlangui\graphics\scene\model.d" />
<File path="src\dlangui\graphics\scene\node.d" />
<File path="src\dlangui\graphics\scene\objimport.d" />
<File path="src\dlangui\graphics\scene\scene3d.d" />
<File path="src\dlangui\graphics\scene\transform.d" />
</Folder>

8
examples/d3d/d3d-msvc.visualdproj
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@ -54,7 +54,7 @@
<ccTransOpt>1</ccTransOpt>
<program>$(DMDInstallDir)windows\bin\dmd.exe</program>
<imppath>$(SolutionDir)/../dlangui/src $(SolutionDir)/../dlangui/3rdparty $(SolutionDir)/../dlangui/deps/DerelictGL3/source $(SolutionDir)/../dlangui/deps/DerelictUtil/source $(SolutionDir)/../dlangui/deps/DerelictFT/source $(SolutionDir)/../dlangui/deps/DerelictSDL2/source</imppath>
<fileImppath>views views/res views/res/i18n views/res/mdpi views/res/hdpi views/res/shaders</fileImppath>
<fileImppath>views views/res views/res/i18n views/res/mdpi views/res/hdpi views/res/shaders views/res/models</fileImppath>
<outdir>$(ConfigurationName)</outdir>
<objdir>$(OutDir)</objdir>
<objname />
@ -146,7 +146,7 @@
<pic>0</pic>
<cov>0</cov>
<nofloat>0</nofloat>
<Dversion>2.043</Dversion>
<Dversion>2</Dversion>
<ignoreUnsupportedPragmas>0</ignoreUnsupportedPragmas>
<allinst>0</allinst>
<stackStomp>0</stackStomp>
@ -156,7 +156,7 @@
<ccTransOpt>1</ccTransOpt>
<program>$(DMDInstallDir)windows\bin\dmd.exe</program>
<imppath>$(SolutionDir)/../dlangui/src $(SolutionDir)/../dlangui/3rdparty $(SolutionDir)/../dlangui/deps/DerelictGL3/source $(SolutionDir)/../dlangui/deps/DerelictUtil/source $(SolutionDir)/../dlangui/deps/DerelictFT/source $(SolutionDir)/../dlangui/deps/DerelictSDL2/source</imppath>
<fileImppath>views views/res views/res/i18n views/res/mdpi views/res/hdpi views/res/shaders</fileImppath>
<fileImppath>views views/res views/res/i18n views/res/mdpi views/res/hdpi views/res/shaders views/res/models</fileImppath>
<outdir>$(ConfigurationName)</outdir>
<objdir>$(OutDir)</objdir>
<objname />
@ -258,7 +258,7 @@
<ccTransOpt>1</ccTransOpt>
<program>$(DMDInstallDir)windows\bin\dmd.exe</program>
<imppath>$(SolutionDir)/../dlangui/src $(SolutionDir)/../dlangui/3rdparty $(SolutionDir)/../dlangui/deps/DerelictGL3/source $(SolutionDir)/../dlangui/deps/DerelictUtil/source $(SolutionDir)/../dlangui/deps/DerelictFT/source $(SolutionDir)/../dlangui/deps/DerelictSDL2/source</imppath>
<fileImppath>views views/res views/res/i18n views/res/mdpi views/res/hdpi views/res/shaders</fileImppath>
<fileImppath>views views/res views/res/i18n views/res/mdpi views/res/hdpi views/res/shaders views/res/models</fileImppath>
<outdir>$(ConfigurationName)</outdir>
<objdir>$(OutDir)</objdir>
<objname />

2
examples/d3d/dub.json
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@ -5,7 +5,7 @@
"license": "Boost",
"authors": ["Vadim Lopatin"],
"stringImportPaths": ["views", "views/res", "views/res/i18n", "views/res/mdpi", "views/res/shaders"],
"stringImportPaths": ["views", "views/res", "views/res/i18n", "views/res/mdpi", "views/res/shaders", "views/res/models"],
"targetPath": "bin",
"targetName": "d3d",

5
examples/d3d/src/d3d.d
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@ -8,6 +8,7 @@ import dlangui.graphics.scene.material;
import dlangui.graphics.scene.effect;
import dlangui.graphics.scene.model;
import dlangui.graphics.scene.node;
import dlangui.graphics.scene.objimport;
import dlangui.graphics.glsupport;
import dlangui.graphics.gldrawbuf;
import derelict.opengl3.gl3;
@ -133,6 +134,10 @@ class UiWidget : VerticalLayout, CellVisitor {
Node3d cubeNode = new Node3d("cubes", cubeDrawable);
_scene.addChild(cubeNode);
ObjModelImport importer;
string src = loadTextResource("suzanne.obj");
importer.parse(src);
_minerMesh = new Mesh(VertexFormat(VertexElementType.POSITION, VertexElementType.NORMAL, VertexElementType.COLOR, VertexElementType.TEXCOORD0));
_world = new World();

1013
examples/d3d/views/res/models/suzanne.obj Normal file
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File diff suppressed because it is too large Load Diff

1
examples/d3d/views/resources.list
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@ -6,3 +6,4 @@ res/mdpi/crate.png
res/mdpi/blocks.png
res/shaders/textured.vert
res/shaders/textured.frag
res/models/suzanne.obj

42
src/dlangui/core/parseutils.d Normal file
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@ -0,0 +1,42 @@
module dlangui.core.parseutils;
long parseLong(inout string v, long defValue = 0) {
int len = cast(int)v.length;
if (len == 0)
return defValue;
int sign = 1;
long value = 0;
int digits = 0;
foreach(i; 0 .. len) {
char ch = v[i];
if (ch == '-') {
if (i != 0)
return defValue;
sign = -1;
} else if (ch >= '0' && ch <= '9') {
digits++;
value = value * 10 + (ch - '0');
} else {
return defValue;
}
}
return digits > 0 ? (sign > 0 ? value : -value) : defValue;
}
ulong parseULong(inout string v, ulong defValue = 0) {
int len = cast(int)v.length;
if (len == 0)
return defValue;
ulong value = 0;
int digits = 0;
foreach(i; 0 .. len) {
char ch = v[i];
if (ch >= '0' && ch <= '9') {
digits++;
value = value * 10 + (ch - '0');
} else {
return defValue;
}
}
return digits > 0 ? value : defValue;
}

41
src/dlangui/core/settings.d
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@ -28,6 +28,7 @@ module dlangui.core.settings;
import dlangui.core.logger;
import dlangui.core.types : parseHexDigit;
public import dlangui.core.parseutils;
import std.range;
//import std.algorithm : clamp, equal;
import std.algorithm : equal;
@ -1906,44 +1907,4 @@ final class Setting {
}
}
long parseLong(inout string v, long defValue = 0) {
int len = cast(int)v.length;
if (len == 0)
return defValue;
int sign = 1;
long value = 0;
int digits = 0;
foreach(i; 0 .. len) {
char ch = v[i];
if (ch == '-') {
if (i != 0)
return defValue;
sign = -1;
} else if (ch >= '0' && ch <= '9') {
digits++;
value = value * 10 + (ch - '0');
} else {
return defValue;
}
}
return digits > 0 ? (sign > 0 ? value : -value) : defValue;
}
ulong parseULong(inout string v, ulong defValue = 0) {
int len = cast(int)v.length;
if (len == 0)
return defValue;
ulong value = 0;
int digits = 0;
foreach(i; 0 .. len) {
char ch = v[i];
if (ch >= '0' && ch <= '9') {
digits++;
value = value * 10 + (ch - '0');
} else {
return defValue;
}
}
return digits > 0 ? value : defValue;
}

466
src/dlangui/dml/parser.d
View File

@ -34,26 +34,7 @@ import std.algorithm : equal, min, max;
import std.utf : toUTF32, toUTF8;
import std.array : join;
public import dlangui.dml.annotations;
class ParserException : Exception {
protected string _msg;
protected string _file;
protected int _line;
protected int _pos;
@property string file() { return _file; }
@property string msg() { return _msg; }
@property int line() { return _line; }
@property int pos() { return _pos; }
this(string msg, string file, int line, int pos) {
super(msg ~ " at " ~ file ~ " line " ~ to!string(line) ~ " column " ~ to!string(pos));
_msg = msg;
_file = file;
_line = line;
_pos = pos;
}
}
public import dlangui.dml.tokenizer;
/// parser exception - unknown (unregistered) widget name
class UnknownWidgetException : ParserException {
@ -78,447 +59,6 @@ class UnknownPropertyException : UnknownWidgetException {
}
}
enum TokenType : ushort {
/// end of file
eof,
/// end of line
eol,
/// whitespace
whitespace,
/// string literal
str,
/// integer literal
integer,
/// floating point literal
floating,
/// comment
comment,
/// ident
ident,
/// error
error,
// operators
/// : operator
colon,
/// . operator
dot,
/// ; operator
semicolon,
/// , operator
comma,
/// - operator
minus,
/// + operator
plus,
/// [
curlyOpen,
/// ]
curlyClose,
/// (
open,
/// )
close,
/// [
squareOpen,
/// ]
squareClose,
}
struct Token {
TokenType type;
ushort line;
ushort pos;
bool multiline;
string text;
union {
int intvalue;
double floatvalue;
}
public @property string toString() const {
if (type == TokenType.integer)
return "" ~ to!string(line) ~ ":" ~ to!string(pos) ~ " " ~ to!string(type) ~ " " ~ to!string(intvalue);
else if (type == TokenType.floating)
return "" ~ to!string(line) ~ ":" ~ to!string(pos) ~ " " ~ to!string(type) ~ " " ~ to!string(floatvalue);
else
return "" ~ to!string(line) ~ ":" ~ to!string(pos) ~ " " ~ to!string(type) ~ " \"" ~ text ~ "\"";
}
@property bool isMultilineComment() {
return type == TokenType.comment && multiline;
}
}
/// simple tokenizer for DlangUI ML
class Tokenizer {
protected LineStream _lines;
dchar[] _lineText;
ushort _line;
ushort _pos;
int _len;
dchar _prevChar;
string _filename;
Token _token;
enum : int {
EOF_CHAR = 0x001A,
EOL_CHAR = 0x000A
}
this(string source, string filename = "") {
_filename = filename;
_lines = LineStream.create(source, filename);
_lineText = _lines.readLine();
_len = cast(int)_lineText.length;
_line = 0;
_pos = 0;
_prevChar = 0;
}
~this() {
destroy(_lines);
_lines = null;
}
protected dchar peekChar() {
if (_pos < _len)
return _lineText[_pos];
else if (_lineText is null)
return EOF_CHAR;
return EOL_CHAR;
}
protected dchar peekNextChar() {
if (_pos < _len - 1)
return _lineText[_pos + 1];
else if (_lineText is null)
return EOF_CHAR;
return EOL_CHAR;
}
protected dchar nextChar() {
if (_pos < _len)
_prevChar = _lineText[_pos++];
else if (_lineText is null)
_prevChar = EOF_CHAR;
else {
_lineText = _lines.readLine();
_len = cast(int)_lineText.length;
_line++;
_pos = 0;
_prevChar = EOL_CHAR;
}
return _prevChar;
}
protected dchar skipChar() {
nextChar();
return peekChar();
}
protected void setTokenStart() {
_token.pos = _pos;
_token.line = _line;
_token.text = null;
_token.intvalue = 0;
}
protected ref const(Token) parseEof() {
_token.type = TokenType.eof;
return _token;
}
protected ref const(Token) parseEol() {
_token.type = TokenType.eol;
nextChar();
return _token;
}
protected ref const(Token) parseWhiteSpace() {
_token.type = TokenType.whitespace;
for(;;) {
dchar ch = skipChar();
if (ch != ' ' && ch != '\t')
break;
}
return _token;
}
static bool isAlpha(dchar ch) {
return (ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z') || ch == '_';
}
static bool isNum(dchar ch) {
return (ch >= '0' && ch <= '9');
}
static bool isAlphaNum(dchar ch) {
return isNum(ch) || isAlpha(ch);
}
private char[] _stringbuf;
protected ref const(Token) parseString() {
_token.type = TokenType.str;
//skipChar(); // skip "
bool lastBackslash = false;
_stringbuf.length = 0;
for(;;) {
dchar ch = skipChar();
if (ch == '\"') {
if (lastBackslash) {
_stringbuf ~= ch;
lastBackslash = false;
} else {
skipChar();
break;
}
} else if (ch == '\\') {
if (lastBackslash) {
_stringbuf ~= ch;
lastBackslash = false;
} else {
lastBackslash = true;
}
} else if (ch == EOL_CHAR) {
skipChar();
break;
} else if (lastBackslash) {
if (ch == 'n')
ch = '\n';
else if (ch == 't')
ch = '\t';
_stringbuf ~= ch;
lastBackslash = false;
} else {
_stringbuf ~= ch;
lastBackslash = false;
}
}
_token.text = _stringbuf.dup;
return _token;
}
protected ref const(Token) parseIdent() {
_token.type = TokenType.ident;
_stringbuf.length = 0;
_stringbuf ~= peekChar();
for(;;) {
dchar ch = skipChar();
if (!isAlphaNum(ch))
break;
_stringbuf ~= ch;
}
_token.text = _stringbuf.dup;
return _token;
}
protected ref const(Token) parseFloating(int n) {
_token.type = TokenType.floating;
dchar ch = peekChar();
// floating point
int div = 1;
int n2 = 0;
for (;;) {
ch = skipChar();
if (!isNum(ch))
break;
n2 = n2 * 10 + (ch - '0');
div *= 10;
}
_token.floatvalue = cast(double)n + (div > 0 ? cast(double)n2 / div : 0.0);
string suffix;
if (ch == '%') {
suffix ~= ch;
ch = skipChar();
} else {
while (ch >= 'a' && ch <= 'z') {
suffix ~= ch;
ch = skipChar();
}
}
if (isAlphaNum(ch) || ch == '.')
return parseError();
_token.text = suffix;
return _token;
}
protected ref const(Token) parseHex(int prefixLen) {
dchar ch = 0;
foreach(i; 0 .. prefixLen)
ch = skipChar();
uint n = parseHexDigit(ch);
if (n == uint.max)
return parseError();
for(;;) {
ch = skipChar();
uint digit = parseHexDigit(ch);
if (digit == uint.max)
break;
n = (n << 4) + digit;
}
string suffix;
if (ch == '%') {
suffix ~= ch;
ch = skipChar();
} else {
while (ch >= 'a' && ch <= 'z') {
suffix ~= ch;
ch = skipChar();
}
}
if (isAlphaNum(ch) || ch == '.')
return parseError();
_token.type = TokenType.integer;
_token.intvalue = n;
_token.text = suffix;
return _token;
}
protected ref const(Token) parseNumber() {
dchar ch = peekChar();
uint n = ch - '0';
for(;;) {
ch = skipChar();
if (!isNum(ch))
break;
n = n * 10 + (ch - '0');
}
if (ch == '.')
return parseFloating(n);
string suffix;
if (ch == '%') {
suffix ~= ch;
ch = skipChar();
} else {
while (ch >= 'a' && ch <= 'z') {
suffix ~= ch;
ch = skipChar();
}
}
if (isAlphaNum(ch) || ch == '.')
return parseError();
_token.type = TokenType.integer;
_token.intvalue = n;
_token.text = suffix;
return _token;
}
protected ref const(Token) parseSingleLineComment() {
for(;;) {
dchar ch = skipChar();
if (ch == EOL_CHAR || ch == EOF_CHAR)
break;
}
_token.type = TokenType.comment;
_token.multiline = false;
return _token;
}
protected ref const(Token) parseMultiLineComment() {
skipChar();
for(;;) {
dchar ch = skipChar();
if (ch == '*' && peekNextChar() == '/') {
skipChar();
skipChar();
break;
}
if (ch == EOF_CHAR)
break;
}
_token.type = TokenType.comment;
_token.multiline = true;
return _token;
}
protected ref const(Token) parseError() {
_token.type = TokenType.error;
for(;;) {
dchar ch = skipChar();
if (ch == ' ' || ch == '\t' || ch == EOL_CHAR || ch == EOF_CHAR)
break;
}
return _token;
}
protected ref const(Token) parseOp(TokenType op) {
_token.type = op;
skipChar();
return _token;
}
/// get next token
ref const(Token) nextToken() {
setTokenStart();
dchar ch = peekChar();
if (ch == EOF_CHAR)
return parseEof();
if (ch == EOL_CHAR)
return parseEol();
if (ch == ' ' || ch == '\t')
return parseWhiteSpace();
if (ch == '\"')
return parseString();
if (isAlpha(ch))
return parseIdent();
if (ch == '0' && peekNextChar == 'x')
return parseHex(2);
if (ch == '#')
return parseHex(1);
if (isNum(ch))
return parseNumber();
if (ch == '.' && isNum(peekNextChar()))
return parseFloating(0);
if (ch == '/' && peekNextChar() == '/')
return parseSingleLineComment();
if (ch == '/' && peekNextChar() == '*')
return parseMultiLineComment();
switch (ch) {
case '.': return parseOp(TokenType.dot);
case ':': return parseOp(TokenType.colon);
case ';': return parseOp(TokenType.semicolon);
case ',': return parseOp(TokenType.comma);
case '-': return parseOp(TokenType.minus);
case '+': return parseOp(TokenType.plus);
case '{': return parseOp(TokenType.curlyOpen);
case '}': return parseOp(TokenType.curlyClose);
case '(': return parseOp(TokenType.open);
case ')': return parseOp(TokenType.close);
case '[': return parseOp(TokenType.squareOpen);
case ']': return parseOp(TokenType.squareClose);
default:
return parseError();
}
}
string getContextSource() {
string s = toUTF8(_lineText);
if (_pos == 0)
return " near `^^^" ~ s[0..min($,30)] ~ "`";
if (_pos >= _len)
return " near `" ~ s[max(_len - 30, 0) .. $] ~ "^^^`";
return " near `" ~ s[max(_pos - 15, 0) .. _pos] ~ "^^^" ~ s[_pos .. min(_pos + 15, $)] ~ "`";
}
void emitError(string msg) {
throw new ParserException(msg ~ getContextSource(), _filename, _token.line, _token.pos);
}
void emitUnknownPropertyError(string objectName, string propName) {
throw new UnknownPropertyException("Unknown property " ~ objectName ~ "." ~ propName ~ getContextSource(), objectName, propName, _filename, _token.line, _token.pos);
}
void emitUnknownObjectError(string objectName) {
throw new UnknownWidgetException("Unknown widget type " ~ objectName ~ getContextSource(), objectName, _filename, _token.line, _token.pos);
}
void emitError(string msg, ref const Token token) {
throw new ParserException(msg, _filename, token.line, token.pos);
}
}
class MLParser {
protected string _code;
protected string _filename;
@ -590,11 +130,11 @@ class MLParser {
}
protected void unknownObjectError(string objectName) {
_tokenizer.emitUnknownObjectError(objectName);
throw new UnknownWidgetException("Unknown widget type " ~ objectName ~ _tokenizer.getContextSource(), objectName, _tokenizer.filename, _tokenizer.line, _tokenizer.pos);
}
protected void unknownPropertyError(string objectName, string propName) {
_tokenizer.emitUnknownPropertyError(objectName, propName);
throw new UnknownPropertyException("Unknown property " ~ objectName ~ "." ~ propName ~ _tokenizer.getContextSource(), objectName, propName, _tokenizer.filename, _tokenizer.line, _tokenizer.pos);
}
Widget createWidget(string name) {

501
src/dlangui/dml/tokenizer.d Normal file
View File

@ -0,0 +1,501 @@
module dlangui.dml.tokenizer;
import dlangui.core.types;
import dlangui.core.linestream;
import std.conv : to;
import std.utf : toUTF32, toUTF8;
import std.algorithm : equal, min, max;
enum TokenType : ushort {
/// end of file
eof,
/// end of line
eol,
/// whitespace
whitespace,
/// string literal
str,
/// integer literal
integer,
/// floating point literal
floating,
/// comment
comment,
/// ident
ident,
/// error
error,
// operators
/// : operator
colon,
/// . operator
dot,
/// ; operator
semicolon,
/// / operator
divide,
/// , operator
comma,
/// - operator
minus,
/// + operator
plus,
/// [
curlyOpen,
/// ]
curlyClose,
/// (
open,
/// )
close,
/// [
squareOpen,
/// ]
squareClose,
}
struct Token {
TokenType type;
ushort line;
ushort pos;
bool multiline;
string text;
union {
int intvalue;
double floatvalue;
}
public @property string toString() const {
if (type == TokenType.integer)
return "" ~ to!string(line) ~ ":" ~ to!string(pos) ~ " " ~ to!string(type) ~ " " ~ to!string(intvalue);
else if (type == TokenType.floating)
return "" ~ to!string(line) ~ ":" ~ to!string(pos) ~ " " ~ to!string(type) ~ " " ~ to!string(floatvalue);
else
return "" ~ to!string(line) ~ ":" ~ to!string(pos) ~ " " ~ to!string(type) ~ " \"" ~ text ~ "\"";
}
@property bool isMultilineComment() {
return type == TokenType.comment && multiline;
}
}
class ParserException : Exception {
protected string _msg;
protected string _file;
protected int _line;
protected int _pos;
@property string file() { return _file; }
@property string msg() { return _msg; }
@property int line() { return _line; }
@property int pos() { return _pos; }
this(string msg, string file, int line, int pos) {
super(msg ~ " at " ~ file ~ " line " ~ to!string(line) ~ " column " ~ to!string(pos));
_msg = msg;
_file = file;
_line = line;
_pos = pos;
}
}
/// simple tokenizer for DlangUI ML
class Tokenizer {
protected string[] _singleLineCommentPrefixes = ["//"];
protected LineStream _lines;
protected dchar[] _lineText;
protected ushort _line;
protected ushort _pos;
protected int _len;
protected dchar _prevChar;
protected string _filename;
protected Token _token;
enum : int {
EOF_CHAR = 0x001A,
EOL_CHAR = 0x000A
}
this(string source, string filename = "", string[] singleLineCommentPrefixes = ["//"]) {
_singleLineCommentPrefixes = singleLineCommentPrefixes;
_filename = filename;
_lines = LineStream.create(source, filename);
_lineText = _lines.readLine();
_len = cast(int)_lineText.length;
_line = 0;
_pos = 0;
_prevChar = 0;
}
~this() {
destroy(_lines);
_lines = null;
}
protected dchar peekChar() {
if (_pos < _len)
return _lineText[_pos];
else if (_lineText is null)
return EOF_CHAR;
return EOL_CHAR;
}
protected dchar peekNextChar() {
if (_pos < _len - 1)
return _lineText[_pos + 1];
else if (_lineText is null)
return EOF_CHAR;
return EOL_CHAR;
}
protected dchar nextChar() {
if (_pos < _len)
_prevChar = _lineText[_pos++];
else if (_lineText is null)
_prevChar = EOF_CHAR;
else {
_lineText = _lines.readLine();
_len = cast(int)_lineText.length;
_line++;
_pos = 0;
_prevChar = EOL_CHAR;
}
return _prevChar;
}
protected dchar skipChar() {
nextChar();
return peekChar();
}
protected void setTokenStart() {
_token.pos = _pos;
_token.line = _line;
_token.text = null;
_token.intvalue = 0;
}
protected ref const(Token) parseEof() {
_token.type = TokenType.eof;
return _token;
}
protected ref const(Token) parseEol() {
_token.type = TokenType.eol;
nextChar();
return _token;
}
protected ref const(Token) parseWhiteSpace() {
_token.type = TokenType.whitespace;
for(;;) {
dchar ch = skipChar();
if (ch != ' ' && ch != '\t')
break;
}
return _token;
}
static bool isAlpha(dchar ch) {
return (ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z') || ch == '_';
}
static bool isNum(dchar ch) {
return (ch >= '0' && ch <= '9');
}
static bool isAlphaNum(dchar ch) {
return isNum(ch) || isAlpha(ch);
}
private char[] _stringbuf;
protected ref const(Token) parseString() {
_token.type = TokenType.str;
//skipChar(); // skip "
bool lastBackslash = false;
_stringbuf.length = 0;
for(;;) {
dchar ch = skipChar();
if (ch == '\"') {
if (lastBackslash) {
_stringbuf ~= ch;
lastBackslash = false;
} else {
skipChar();
break;
}
} else if (ch == '\\') {
if (lastBackslash) {
_stringbuf ~= ch;
lastBackslash = false;
} else {
lastBackslash = true;
}
} else if (ch == EOL_CHAR) {
skipChar();
break;
} else if (lastBackslash) {
if (ch == 'n')
ch = '\n';
else if (ch == 't')
ch = '\t';
_stringbuf ~= ch;
lastBackslash = false;
} else {
_stringbuf ~= ch;
lastBackslash = false;
}
}
_token.text = _stringbuf.dup;
return _token;
}
protected ref const(Token) parseIdent() {
_token.type = TokenType.ident;
_stringbuf.length = 0;
_stringbuf ~= peekChar();
for(;;) {
dchar ch = skipChar();
if (!isAlphaNum(ch))
break;
_stringbuf ~= ch;
}
_token.text = _stringbuf.dup;
return _token;
}
protected ref const(Token) parseFloating(int n) {
_token.type = TokenType.floating;
dchar ch = peekChar();
// floating point
int div = 1;
int n2 = 0;
for (;;) {
ch = skipChar();
if (!isNum(ch))
break;
n2 = n2 * 10 + (ch - '0');
div *= 10;
}
_token.floatvalue = cast(double)n + (div > 0 ? cast(double)n2 / div : 0.0);
string suffix;
if (ch == '%') {
suffix ~= ch;
ch = skipChar();
} else {
while (ch >= 'a' && ch <= 'z') {
suffix ~= ch;
ch = skipChar();
}
}
if (isAlphaNum(ch) || ch == '.')
return parseError();
_token.text = suffix;
return _token;
}
protected ref const(Token) parseHex(int prefixLen) {
dchar ch = 0;
foreach(i; 0 .. prefixLen)
ch = skipChar();
uint n = parseHexDigit(ch);
if (n == uint.max)
return parseError();
for(;;) {
ch = skipChar();
uint digit = parseHexDigit(ch);
if (digit == uint.max)
break;
n = (n << 4) + digit;
}
string suffix;
if (ch == '%') {
suffix ~= ch;
ch = skipChar();
} else {
while (ch >= 'a' && ch <= 'z') {
suffix ~= ch;
ch = skipChar();
}
}
if (isAlphaNum(ch) || ch == '.')
return parseError();
_token.type = TokenType.integer;
_token.intvalue = n;
_token.text = suffix;
return _token;
}
protected ref const(Token) parseNumber() {
dchar ch = peekChar();
uint n = ch - '0';
for(;;) {
ch = skipChar();
if (!isNum(ch))
break;
n = n * 10 + (ch - '0');
}
if (ch == '.')
return parseFloating(n);
string suffix;
if (ch == '%') {
suffix ~= ch;
ch = skipChar();
} else {
while (ch >= 'a' && ch <= 'z') {
suffix ~= ch;
ch = skipChar();
}
}
if (isAlphaNum(ch) || ch == '.')
return parseError();
_token.type = TokenType.integer;
_token.intvalue = n;
_token.text = suffix;
return _token;
}
protected ref const(Token) parseSingleLineComment() {
for(;;) {
dchar ch = skipChar();
if (ch == EOL_CHAR || ch == EOF_CHAR)
break;
}
_token.type = TokenType.comment;
_token.multiline = false;
return _token;
}
protected ref const(Token) parseMultiLineComment() {
skipChar();
for(;;) {
dchar ch = skipChar();
if (ch == '*' && peekNextChar() == '/') {
skipChar();
skipChar();
break;
}
if (ch == EOF_CHAR)
break;
}
_token.type = TokenType.comment;
_token.multiline = true;
return _token;
}
protected ref const(Token) parseError() {
_token.type = TokenType.error;
for(;;) {
dchar ch = skipChar();
if (ch == ' ' || ch == '\t' || ch == EOL_CHAR || ch == EOF_CHAR)
break;
}
return _token;
}
protected ref const(Token) parseOp(TokenType op) {
_token.type = op;
skipChar();
return _token;
}
/// get next token
ref const(Token) nextToken() {
setTokenStart();
dchar ch = peekChar();
if (ch == EOF_CHAR)
return parseEof();
if (ch == EOL_CHAR)
return parseEol();
if (ch == ' ' || ch == '\t')
return parseWhiteSpace();
if (ch == '\"')
return parseString();
if (isAlpha(ch))
return parseIdent();
if (ch == '0' && peekNextChar == 'x')
return parseHex(2);
if (ch == '#')
return parseHex(1);
if (isNum(ch))
return parseNumber();
if (ch == '.' && isNum(peekNextChar()))
return parseFloating(0);
foreach(prefix; _singleLineCommentPrefixes) {
if (ch == prefix[0] && (prefix.length == 1 || peekNextChar() == prefix[1]))
return parseSingleLineComment();
}
if (ch == '/' && peekNextChar() == '*')
return parseMultiLineComment();
switch (ch) {
case '.': return parseOp(TokenType.dot);
case ':': return parseOp(TokenType.colon);
case ';': return parseOp(TokenType.semicolon);
case ',': return parseOp(TokenType.comma);
case '-': return parseOp(TokenType.minus);
case '+': return parseOp(TokenType.plus);
case '{': return parseOp(TokenType.curlyOpen);
case '}': return parseOp(TokenType.curlyClose);
case '(': return parseOp(TokenType.open);
case ')': return parseOp(TokenType.close);
case '[': return parseOp(TokenType.squareOpen);
case ']': return parseOp(TokenType.squareClose);
case '/': return parseOp(TokenType.divide);
default:
return parseError();
}
}
string getContextSource() {
string s = toUTF8(_lineText);
if (_pos == 0)
return " near `^^^" ~ s[0..min($,30)] ~ "`";
if (_pos >= _len)
return " near `" ~ s[max(_len - 30, 0) .. $] ~ "^^^`";
return " near `" ~ s[max(_pos - 15, 0) .. _pos] ~ "^^^" ~ s[_pos .. min(_pos + 15, $)] ~ "`";
}
@property string filename() {
return filename;
}
@property int line() {
return _token.line;
}
@property int pos() {
return _token.pos;
}
void emitError(string msg) {
throw new ParserException(msg ~ getContextSource(), _filename, _token.line, _token.pos);
}
void emitError(string msg, ref const Token token) {
throw new ParserException(msg, _filename, token.line, token.pos);
}
}
/// tokenize source into array of tokens (excluding EOF)
public Token[] tokenize(string code, string[] _singleLineCommentPrefixes = ["//"]) {
Token[] res;
auto tokenizer = new Tokenizer(code, "");
for (;;) {
auto token = tokenizer.nextToken();
if (token.type == TokenType.eof)
break;
res ~= token;
}
return res;
}
/// exclude whitespace tokens at beginning and end of token sequence
Token[] trimSpaceTokens(Token[] tokens, bool trimBeginning = true, bool trimEnd = true) {
if (trimBeginning)
while(tokens.length > 0 && tokens[0].type == TokenType.whitespace)
tokens = tokens[1 .. $];
if (trimEnd)
while(tokens.length > 0 && tokens[$ - 1].type == TokenType.whitespace)
tokens = tokens[0 .. $ - 1];
return tokens;
}

194
src/dlangui/graphics/scene/objimport.d Normal file
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@ -0,0 +1,194 @@
module dlangui.graphics.scene.objimport;
import dlangui.core.logger;
import dlangui.dml.tokenizer;
struct ObjModelImport {
alias FaceIndex = int[3];
private float[] _vertexData;
private float[] _normalData;
private float[] _txData;
private int _vertexCount;
private int _normalCount;
private int _triangleCount;
private int _txCount;
private float[8] _buf;
protected float[] parseFloatList(Token[] tokens, int maxItems = 3, float padding = 0) {
int i = 0;
foreach(t; tokens) {
if (i >= maxItems)
break;
if (t.type == TokenType.floating)
_buf[i++] = cast(float)t.floatvalue;
else if (t.type == TokenType.integer)
_buf[i++] = cast(float)t.intvalue;
}
while(i < maxItems)
_buf[i++] = padding;
if (i > 0)
return _buf[0 .. i];
return null;
}
//# List of geometric vertices, with (x,y,z[,w]) coordinates, w is optional and defaults to 1.0.
//v 0.123 0.234 0.345 1.0
protected bool parseVertexLine(Token[] tokens) {
float[] data = parseFloatList(tokens, 3, 0);
if (data.length == 3) {
_vertexData ~= data;
_vertexCount++;
return true;
}
return false;
}
//# List of texture coordinates, in (u, v [,w]) coordinates, these will vary between 0 and 1, w is optional and defaults to 0.
//vt 0.500 1 [0]
protected bool parseVertexTextureLine(Token[] tokens) {
float[] data = parseFloatList(tokens, 2, 0);
if (data.length == 2) {
_txData ~= data;
_txCount++;
return true;
}
return false;
}
//# List of vertex normals in (x,y,z) form; normals might not be unit vectors.
//vn 0.707 0.000 0.707
protected bool parseVertexNormalsLine(Token[] tokens) {
float[] data = parseFloatList(tokens, 3, 0);
if (data.length == 3) {
_normalData ~= data;
_normalCount++;
return true;
}
return false;
}
static protected bool skipToken(ref Token[] tokens) {
tokens = tokens.length > 1 ? tokens[1 .. $] : null;
return tokens.length > 0;
}
static protected bool parseIndex(ref Token[] tokens, ref int data) {
int sign = 1;
if (tokens[0].type == TokenType.minus) {
sign = -1;
skipToken(tokens);
}
if (tokens[0].type == TokenType.integer) {
data = tokens[0].intvalue * sign;
skipToken(tokens);
return true;
}
return false;
}
static protected bool skip(ref Token[] tokens, TokenType type) {
if (tokens.length > 0 && tokens[0].type == type) {
skipToken(tokens);
return true;
}
return false;
}
static protected bool parseFaceIndex(ref Token[] tokens, ref FaceIndex data) {
int i = 0;
if (tokens.length == 0)
return false;
if (!parseIndex(tokens, data[0]))
return false;
if (skip(tokens, TokenType.divide)) {
parseIndex(tokens, data[1]);
if (skip(tokens, TokenType.divide)) {
if (!parseIndex(tokens, data[2]))
return false;
}
}
return tokens.length == 0 || skip(tokens, TokenType.whitespace);
}
//# Parameter space vertices in ( u [,v] [,w] ) form; free form geometry statement ( see below )
//vp 0.310000 3.210000 2.100000
protected bool parseParameterSpaceLine(Token[] tokens) {
// not supported
return true;
}
//f 1 2 3
//f 3/1 4/2 5/3
//f 6/4/1 3/5/3 7/6/5
protected bool parseFaceLine(Token[] tokens) {
FaceIndex[10] indexes;
int i = 0;
while(parseFaceIndex(tokens, indexes[i])) {
if (++i >= 10)
break;
}
for (int j = 1; j + 1 < i; j++)
addTriangle(indexes[0], indexes[j], indexes[j + 1]);
return true;
}
protected bool addTriangle(FaceIndex v1, FaceIndex v2, FaceIndex v3) {
_triangleCount++;
return true;
}
protected bool parseLine(Token[] tokens) {
tokens = trimSpaceTokens(tokens);
if (tokens.length) {
if (tokens[0].type == TokenType.comment)
return true; // ignore comment
if (tokens[0].type == TokenType.ident) {
string ident = tokens[0].text;
tokens = trimSpaceTokens(tokens[1 .. $], true, false);
if (ident == "v") // vertex
return parseVertexLine(tokens);
if (ident == "vt") // texture coords
return parseVertexTextureLine(tokens);
if (ident == "vn") // normals
return parseVertexNormalsLine(tokens);
if (ident == "vp") // parameter space
return parseParameterSpaceLine(tokens);
if (ident == "f") // face
return parseFaceLine(tokens);
}
}
return true;
}
bool parse(string source) {
import dlangui.dml.tokenizer;
try {
Token[] tokens = tokenize(source, ["#"]);
int start = 0;
int i = 0;
for ( ; i <= tokens.length; i++) {
if (i == tokens.length || tokens[i].type == TokenType.eol) {
if (i > start && !parseLine(tokens[start .. i]))
return false;
start = i + 1;
}
}
} catch (ParserException e) {
Log.d("failed to tokenize OBJ source", e);
return false;
}
return true;
}
}
// load text resource
string loadTextResource(string resourceId) {
import dlangui.graphics.resources;
import std.string : endsWith;
string filename;
filename = drawableCache.findResource(resourceId);
if (!filename) {
Log.e("Object resource file not found for resourceId ", resourceId);
assert(false);
}
string s = cast(string)loadResourceBytes(filename);
if (!s) {
Log.e("Cannot read shader source resource ", resourceId, " from file ", filename);
assert(false);
}
return s;
}