| 1 |
#include "shader.h" |
| 2 |
#include "shader_vars.h" |
| 3 |
|
| 4 |
namespace shader { |
| 5 |
|
| 6 |
refcounted::~refcounted () |
| 7 |
{ |
| 8 |
#if 0 |
| 9 |
if (refcnt) |
| 10 |
abort (); |
| 11 |
#endif |
| 12 |
} |
| 13 |
|
| 14 |
void refcounted::refcnt_dec () const |
| 15 |
{ |
| 16 |
if (!--refcnt) |
| 17 |
delete this; // quite a bit of code... |
| 18 |
} |
| 19 |
|
| 20 |
const char str_float [] = "float"; |
| 21 |
const char str_vec2 [] = "vec2"; |
| 22 |
const char str_vec3 [] = "vec3"; |
| 23 |
const char str_vec4 [] = "vec4"; |
| 24 |
const char str_mat2 [] = "mat2"; |
| 25 |
const char str_mat3 [] = "mat3"; |
| 26 |
const char str_mat4 [] = "mat4"; |
| 27 |
|
| 28 |
const char str_sampler_1d [] = "sampler1D"; |
| 29 |
const char str_sampler_1d_shadow [] = "sampler1DShadow"; |
| 30 |
const char str_sampler_2d [] = "sampler2D"; |
| 31 |
const char str_sampler_2d_shadow [] = "sampler2DShadow"; |
| 32 |
const char str_sampler_2d_rect [] = "sampler2DRect"; |
| 33 |
const char str_sampler_2d_rect_shadow [] = "sampler2DRectShadow"; |
| 34 |
const char str_sampler_3d [] = "sampler3D"; |
| 35 |
const char str_sampler_3d_rect [] = "sampler3DRect"; |
| 36 |
const char str_sampler_cube [] = "samplerCube"; |
| 37 |
|
| 38 |
unsigned int var_i::next_id = 0; |
| 39 |
|
| 40 |
var_i::var_i (const char *typestr) |
| 41 |
: typestr (typestr) |
| 42 |
{ |
| 43 |
//param = cgCreateParameter (cg_context, cgtype); |
| 44 |
} |
| 45 |
|
| 46 |
var_i::~var_i () |
| 47 |
{ |
| 48 |
//cgDestroyParameter (param); |
| 49 |
} |
| 50 |
|
| 51 |
stream_i::stream_i (const char *strtype) |
| 52 |
: var_i (strtype) |
| 53 |
{ |
| 54 |
sprintf (name, "V%lx_%d", ((long)this >> 4) & 0xfff, ++next_id); |
| 55 |
} |
| 56 |
|
| 57 |
temporary_i::temporary_i (const char *strtype) |
| 58 |
: var_i (strtype) |
| 59 |
{ |
| 60 |
sprintf (name, "T%lx_%d", ((long)this >> 4) & 0xfff, ++next_id); |
| 61 |
} |
| 62 |
|
| 63 |
uniform_i::uniform_i (const char *strtype) |
| 64 |
: var_i (strtype), dirty (true) |
| 65 |
{ |
| 66 |
sprintf (name, "U%lx_%d", ((long)this >> 4) & 0xfff, ++next_id); |
| 67 |
} |
| 68 |
|
| 69 |
fragment_string_i::~fragment_string_i () |
| 70 |
{ |
| 71 |
free (str); |
| 72 |
} |
| 73 |
|
| 74 |
//////////////////////////////////////////////////////////////////////////// |
| 75 |
|
| 76 |
void var_i::build_decl (ostringstream &b) |
| 77 |
{ |
| 78 |
b << typestr << ' ' << name; |
| 79 |
} |
| 80 |
|
| 81 |
void uniform_i::build_decl (ostringstream &b) |
| 82 |
{ |
| 83 |
b << "uniform " << typestr << ' ' << name; |
| 84 |
} |
| 85 |
|
| 86 |
void stream_i::build_decl (ostringstream &b) |
| 87 |
{ |
| 88 |
b << typestr << ' ' << name; |
| 89 |
} |
| 90 |
|
| 91 |
//////////////////////////////////////////////////////////////////////////// |
| 92 |
|
| 93 |
void glvar_i::build (shader_builder &b) |
| 94 |
{ |
| 95 |
b << name; |
| 96 |
} |
| 97 |
|
| 98 |
void var_i::build (shader_builder &b) |
| 99 |
{ |
| 100 |
b << name; |
| 101 |
} |
| 102 |
|
| 103 |
void uniform_i::build (shader_builder &b) |
| 104 |
{ |
| 105 |
var_i::build (b); |
| 106 |
|
| 107 |
if (find (b.refs.begin (), b.refs.end (), uniform (*this)) == b.refs.end ()) |
| 108 |
b.refs.push_back (*this); |
| 109 |
} |
| 110 |
|
| 111 |
void stream_i::build (shader_builder &b) |
| 112 |
{ |
| 113 |
var_i::build (b); |
| 114 |
|
| 115 |
if (find (b.streams.begin (), b.streams.end (), var (*this)) == b.streams.end ()) |
| 116 |
b.streams.push_back (*this); |
| 117 |
} |
| 118 |
|
| 119 |
void temporary_i::build (shader_builder &b) |
| 120 |
{ |
| 121 |
var_i::build (b); |
| 122 |
|
| 123 |
if (find (b.temps.begin (), b.temps.end (), var (*this)) == b.temps.end ()) |
| 124 |
b.temps.push_back (*this); |
| 125 |
} |
| 126 |
|
| 127 |
void fragment_vector_i::build (shader_builder &b) |
| 128 |
{ |
| 129 |
for (vector<fragment>::iterator i = begin (); i != end (); i++) |
| 130 |
(*i)->build (b); |
| 131 |
} |
| 132 |
|
| 133 |
void fragment_const_string_i::build (shader_builder &b) |
| 134 |
{ |
| 135 |
b << str; |
| 136 |
} |
| 137 |
|
| 138 |
void fragment_string_i::build (shader_builder &b) |
| 139 |
{ |
| 140 |
b << str; |
| 141 |
} |
| 142 |
|
| 143 |
#if 0 |
| 144 |
void statement_i::build (shader_builder &b) |
| 145 |
{ |
| 146 |
b << " "; |
| 147 |
fragment_vector_i::build (b); |
| 148 |
b << ";\n"; |
| 149 |
} |
| 150 |
#endif |
| 151 |
|
| 152 |
//////////////////////////////////////////////////////////////////////////// |
| 153 |
|
| 154 |
shader_object_i *cur = 0; |
| 155 |
|
| 156 |
shader_object_i::shader_object_i (GLenum type) |
| 157 |
: type (type) |
| 158 |
{ |
| 159 |
id = glCreateShaderObjectARB (type); |
| 160 |
} |
| 161 |
|
| 162 |
shader_object_i::~shader_object_i () |
| 163 |
{ |
| 164 |
glDeleteObjectARB (id); |
| 165 |
} |
| 166 |
|
| 167 |
void shader_object_i::start () |
| 168 |
{ |
| 169 |
clear (); |
| 170 |
cur = this; |
| 171 |
} |
| 172 |
|
| 173 |
void shader_object_i::stop () |
| 174 |
{ |
| 175 |
cur = 0; |
| 176 |
} |
| 177 |
|
| 178 |
string shader_object_i::source () |
| 179 |
{ |
| 180 |
shader_builder b; |
| 181 |
build (b); |
| 182 |
ostringstream os; |
| 183 |
|
| 184 |
for (vector<uniform>::iterator i = b.refs.begin (); i != b.refs.end (); i++) |
| 185 |
{ |
| 186 |
(*i)->build_decl (os); |
| 187 |
os << ";\n"; |
| 188 |
} |
| 189 |
|
| 190 |
// not neccessary right now, as GLSL is rich on predefinitions |
| 191 |
for (vector<var>::iterator i = b.streams.begin (); i != b.streams.end (); i++) |
| 192 |
{ |
| 193 |
os << "attribute "; |
| 194 |
(*i)->build_decl (os); |
| 195 |
os << ";\n"; |
| 196 |
} |
| 197 |
|
| 198 |
os << "\nvoid main (void)\n{\n"; |
| 199 |
|
| 200 |
for (vector<var>::iterator i = b.temps.begin (); i != b.temps.end (); i++) |
| 201 |
{ |
| 202 |
os << " "; |
| 203 |
(*i)->build_decl (os); |
| 204 |
os << ";\n"; |
| 205 |
} |
| 206 |
|
| 207 |
os << "\n"; |
| 208 |
os << b.source.str (); |
| 209 |
os << "}\n"; |
| 210 |
|
| 211 |
return os.str (); |
| 212 |
} |
| 213 |
|
| 214 |
void shader_object_i::compile () |
| 215 |
{ |
| 216 |
string src = source (); |
| 217 |
const char *sptr = src.data (); |
| 218 |
const int slen = src.size (); |
| 219 |
|
| 220 |
printf ("SOURCE<%s>\n", src.c_str ()); |
| 221 |
abort (); |
| 222 |
glShaderSourceARB (id, 1, &sptr, &slen); |
| 223 |
glCompileShaderARB (id); |
| 224 |
|
| 225 |
GLint compiled; |
| 226 |
glGetObjectParameterivARB (id, GL_OBJECT_COMPILE_STATUS_ARB, &compiled); |
| 227 |
|
| 228 |
if (!compiled) |
| 229 |
{ |
| 230 |
char infolog[8192]; |
| 231 |
glGetInfoLogARB (id, 8192, NULL, infolog); |
| 232 |
printf ("SOURCE<%s>\n", src.c_str ()); |
| 233 |
printf ("INFOLOG<%s>\n", infolog); |
| 234 |
abort (); |
| 235 |
} |
| 236 |
} |
| 237 |
|
| 238 |
void sl_func0::begin () const |
| 239 |
{ |
| 240 |
cur->append_string (name_par); |
| 241 |
} |
| 242 |
|
| 243 |
void sl_func0::comma () const |
| 244 |
{ |
| 245 |
cur->append (str_comma); |
| 246 |
} |
| 247 |
|
| 248 |
void sl_func0::end () const |
| 249 |
{ |
| 250 |
str_rpar (); |
| 251 |
} |
| 252 |
|
| 253 |
void sl_float::operator ()() const |
| 254 |
{ |
| 255 |
char s[20]; |
| 256 |
sprintf (s, "%g", c); |
| 257 |
cur->append_string (s); |
| 258 |
} |
| 259 |
|
| 260 |
const sl_convert<vec2>::T sl_convert<vec2>::convert (const vec2 &v) |
| 261 |
{ |
| 262 |
sl_string<60> s; |
| 263 |
sprintf (s.str, "vec2 (%g, %g)", v.x, v.y); |
| 264 |
return s; |
| 265 |
} |
| 266 |
|
| 267 |
const sl_convert<vec3>::T sl_convert<vec3>::convert (const vec3 &v) |
| 268 |
{ |
| 269 |
sl_string<80> s; |
| 270 |
sprintf (s.str, "vec3 (%g, %g, %g)", v.x, v.y, v.z); |
| 271 |
return s; |
| 272 |
} |
| 273 |
|
| 274 |
const sl_convert<vec4>::T sl_convert<vec4>::convert (const vec4 &v) |
| 275 |
{ |
| 276 |
sl_string<100> s; |
| 277 |
sprintf (s.str, "vec4 (%g, %g, %g, %g)", v.x, v.y, v.z, v.w); |
| 278 |
return s; |
| 279 |
} |
| 280 |
|
| 281 |
const fragment_const_string str_2sp (" "); |
| 282 |
const fragment_const_string str_equal (" = "); |
| 283 |
const fragment_const_string str_comma (", "); |
| 284 |
const fragment_const_string str_endl (";\n"); |
| 285 |
|
| 286 |
const sl_append_const_string str_plus (" + "); |
| 287 |
const sl_append_const_string str_minus (" - "); |
| 288 |
const sl_append_const_string str_mul (" * "); |
| 289 |
const sl_append_const_string str_div (" / "); |
| 290 |
|
| 291 |
const sl_append_const_string str_lpar ("("); |
| 292 |
const sl_append_const_string str_rpar (")"); |
| 293 |
|
| 294 |
void swizzle_mask (sl_string<7> &s, int mask) |
| 295 |
{ |
| 296 |
static const char channel[4] = { 'x', 'y', 'z', 'w' }; |
| 297 |
|
| 298 |
char *str = s.str; |
| 299 |
|
| 300 |
*str++ = ')'; |
| 301 |
*str++ = '.'; |
| 302 |
|
| 303 |
while (mask) |
| 304 |
{ |
| 305 |
int c = mask % 5; |
| 306 |
mask /= 5; |
| 307 |
|
| 308 |
if (c) |
| 309 |
*str++ = channel[c - 1]; |
| 310 |
} |
| 311 |
|
| 312 |
*str++ = 0; |
| 313 |
} |
| 314 |
|
| 315 |
|
| 316 |
# define SHADER_FUNC0(name) \ |
| 317 |
template<typename A> \ |
| 318 |
inline const sl_expr<sl_func0> \ |
| 319 |
name () \ |
| 320 |
{ \ |
| 321 |
return sl_func0 (#name " ("); \ |
| 322 |
} |
| 323 |
|
| 324 |
# define SHADER_FUNC1(name) \ |
| 325 |
template<typename A> \ |
| 326 |
inline const sl_expr< sl_func1<typename sl_convert<A>::T> > \ |
| 327 |
name (const A &a) \ |
| 328 |
{ \ |
| 329 |
return sl_func1<typename sl_convert<A>::T> (#name " (", sl_convert<A>::convert (a));\ |
| 330 |
} |
| 331 |
|
| 332 |
# define SHADER_FUNC2(name) \ |
| 333 |
template<typename A, typename B> \ |
| 334 |
inline const sl_expr< sl_func2<typename sl_convert<A>::T, typename sl_convert<B>::T> > \ |
| 335 |
name (const A &a, const B &b) \ |
| 336 |
{ \ |
| 337 |
return sl_func2<typename sl_convert<A>::T, typename sl_convert<B>::T> (#name " (", sl_convert<A>::convert (a), sl_convert<B>::convert (b));\ |
| 338 |
} |
| 339 |
|
| 340 |
# define SHADER_FUNC3(name) \ |
| 341 |
template<typename A, typename B, typename C> \ |
| 342 |
inline const sl_expr< sl_func3<typename sl_convert<A>::T, typename sl_convert<B>::T, typename sl_convert<C>::T> > \ |
| 343 |
name (const A &a, const B &b, const C &c) \ |
| 344 |
{ \ |
| 345 |
return sl_func3<typename sl_convert<A>::T, typename sl_convert<B>::T, typename sl_convert<C>::T> (#name " (", sl_convert<A>::convert (a), sl_convert<B>::convert (b), sl_convert<C>::convert (c));\ |
| 346 |
} |
| 347 |
|
| 348 |
# define SHADER_FUNC4(name) \ |
| 349 |
template<typename A, typename B, typename C, typename D> \ |
| 350 |
inline const sl_expr< sl_func3<typename sl_convert<A>::T, typename sl_convert<B>::T, typename sl_convert<C>::T, typename sl_convert<D>::T > > \ |
| 351 |
name (const A &a, const B &b, const C &c, const D &d) \ |
| 352 |
{ \ |
| 353 |
return sl_func3<typename sl_convert<A>::T, typename sl_convert<B>::T, typename sl_convert<D>::T>> (#name " (", sl_convert<A>::convert (a), sl_convert<B>::convert (b), sl_convert<C>::convert (c), sl_convert<D>::convert (d));\ |
| 354 |
} |
| 355 |
|
| 356 |
SHADER_FUNC1 (normalize); |
| 357 |
SHADER_FUNC2 (dot); |
| 358 |
SHADER_FUNC2 (tex2D); |
| 359 |
SHADER_FUNC3 (tex2D); |
| 360 |
|
| 361 |
# undef SHADER_FUNC1 |
| 362 |
|
| 363 |
void debdebdebdebug ()//D |
| 364 |
{ |
| 365 |
vertex_shader vsh; |
| 366 |
|
| 367 |
vsh->start (); |
| 368 |
|
| 369 |
temp_4f lightpos; |
| 370 |
temp_3f wpos; |
| 371 |
|
| 372 |
lightpos = vec4 (10, -10, 0, 1); |
| 373 |
wpos = xyz (gl.model_view_matrix * vin.vertex); |
| 374 |
vout.position = gl.model_view_matrix_inverse_transpose * vin.vertex; |
| 375 |
vout.tex_coord[0] = vin.tex_coord[0]; |
| 376 |
vout.tex_coord[1] = normalize (lightpos - wpos); |
| 377 |
vout.tex_coord[2] = normalize (wpos); |
| 378 |
vout.tex_coord[3] = normalize (xyz (gl.model_view_matrix_inverse_transpose) * vin.normal); |
| 379 |
vout.tex_coord[4] = normalize (xyz (gl.projection_matrix_inverse_transpose) - wpos); |
| 380 |
|
| 381 |
vsh->end (); |
| 382 |
vsh->compile (); |
| 383 |
} |
| 384 |
|
| 385 |
} |
| 386 |
|
