1 |
root |
1.1 |
#ifndef MATERIAL_H |
2 |
|
|
#define MATERIAL_H |
3 |
|
|
|
4 |
root |
1.5 |
#include <vector> |
5 |
|
|
#include <string> |
6 |
|
|
#include <sstream> |
7 |
|
|
|
8 |
|
|
#include "opengl.h" |
9 |
|
|
|
10 |
root |
1.1 |
#include "util.h" |
11 |
|
|
|
12 |
root |
1.5 |
namespace shader { |
13 |
|
|
|
14 |
|
|
using namespace std; |
15 |
|
|
|
16 |
|
|
const int NAMELEN = 16; |
17 |
|
|
|
18 |
|
|
class refcounted |
19 |
|
|
{ |
20 |
root |
1.6 |
template<class type> friend class ref; |
21 |
|
|
mutable int refcnt; |
22 |
|
|
void refcnt_inc () const { refcnt++; } |
23 |
|
|
void refcnt_dec () const { if (!--refcnt) delete this; }; |
24 |
root |
1.5 |
public: |
25 |
|
|
refcounted () : refcnt(0) { } |
26 |
|
|
virtual ~refcounted (); |
27 |
|
|
}; |
28 |
|
|
|
29 |
root |
1.6 |
template<class type> |
30 |
|
|
struct ref |
31 |
root |
1.5 |
{ |
32 |
root |
1.6 |
type *p; |
33 |
root |
1.5 |
|
34 |
root |
1.8 |
ref () |
35 |
|
|
{ |
36 |
|
|
p = new type; |
37 |
|
|
p->refcnt_inc (); |
38 |
|
|
} |
39 |
|
|
|
40 |
root |
1.6 |
ref (type &d) |
41 |
root |
1.5 |
{ |
42 |
|
|
d.refcnt_inc (); |
43 |
root |
1.6 |
p = &d; |
44 |
|
|
} |
45 |
|
|
|
46 |
|
|
ref (const ref &r) |
47 |
|
|
{ |
48 |
|
|
r.p->refcnt_inc (); |
49 |
|
|
p = r.p; |
50 |
root |
1.5 |
} |
51 |
|
|
|
52 |
root |
1.6 |
template<class type2> |
53 |
|
|
ref (const ref<type2> &r) |
54 |
root |
1.5 |
{ |
55 |
root |
1.6 |
r.p->refcnt_inc (); |
56 |
root |
1.5 |
p = r.p; |
57 |
|
|
} |
58 |
|
|
|
59 |
root |
1.6 |
~ref () |
60 |
root |
1.5 |
{ |
61 |
|
|
p->refcnt_dec (); |
62 |
|
|
} |
63 |
|
|
|
64 |
root |
1.6 |
ref &operator =(type &d) |
65 |
root |
1.5 |
{ |
66 |
root |
1.6 |
d.refcnt_inc (); |
67 |
|
|
p->refcnt_dec (); |
68 |
|
|
p = &d; |
69 |
|
|
return *this; |
70 |
root |
1.5 |
} |
71 |
|
|
|
72 |
root |
1.6 |
type *operator ->() { return p; } |
73 |
|
|
const type *operator ->() const { return p; } |
74 |
root |
1.5 |
|
75 |
root |
1.6 |
operator type &() { return *p; } |
76 |
|
|
operator const type &() const { return *p; } |
77 |
root |
1.5 |
|
78 |
root |
1.6 |
template<class type2> |
79 |
|
|
bool operator ==(const ref<type2> b) const |
80 |
root |
1.5 |
{ |
81 |
root |
1.6 |
return (void *)p == (void *)b.p; |
82 |
root |
1.5 |
} |
83 |
|
|
}; |
84 |
|
|
|
85 |
root |
1.6 |
extern const char str_float []; |
86 |
|
|
extern const char str_float2 []; |
87 |
|
|
extern const char str_float3 []; |
88 |
|
|
extern const char str_float4 []; |
89 |
|
|
extern const char str_float4x4 []; |
90 |
|
|
|
91 |
root |
1.8 |
extern const char str_sampler1d []; |
92 |
|
|
extern const char str_sampler2d []; |
93 |
|
|
extern const char str_sampler3d []; |
94 |
|
|
extern const char str_samplerCUBE []; |
95 |
|
|
extern const char str_samplerRECT []; |
96 |
|
|
|
97 |
root |
1.5 |
typedef ref<struct var_i> var; |
98 |
root |
1.6 |
typedef ref<struct uniform_i> uniform; |
99 |
root |
1.5 |
|
100 |
|
|
struct shader_builder |
101 |
|
|
{ |
102 |
|
|
struct shader_program *prog; |
103 |
root |
1.6 |
vector<uniform> refs; // uniform parameters |
104 |
|
|
vector<var> temps; // temporary variables |
105 |
|
|
vector<var> streams; // varying inputs & outputs |
106 |
root |
1.5 |
|
107 |
root |
1.6 |
ostringstream source; |
108 |
root |
1.5 |
|
109 |
|
|
template<typename type> |
110 |
|
|
shader_builder &operator <<(const type &t) |
111 |
|
|
{ |
112 |
root |
1.6 |
source << t; |
113 |
root |
1.5 |
return *this; |
114 |
|
|
} |
115 |
|
|
}; |
116 |
|
|
|
117 |
root |
1.6 |
struct fragment_i : refcounted |
118 |
root |
1.5 |
{ |
119 |
|
|
virtual void build (shader_builder &b) = 0; |
120 |
|
|
}; |
121 |
|
|
|
122 |
root |
1.6 |
typedef ref<fragment_i> fragment; |
123 |
|
|
|
124 |
|
|
struct var_i : fragment_i |
125 |
root |
1.5 |
{ |
126 |
|
|
static int next_name; |
127 |
|
|
|
128 |
|
|
CGparameter param; |
129 |
|
|
int name; |
130 |
root |
1.6 |
const char *typestr; |
131 |
root |
1.5 |
|
132 |
|
|
void build (shader_builder &b); |
133 |
root |
1.7 |
virtual void build_decl (ostringstream &b); |
134 |
root |
1.5 |
|
135 |
root |
1.6 |
var_i (CGtype cgtype, const char *typestr); |
136 |
root |
1.5 |
~var_i (); |
137 |
|
|
}; |
138 |
|
|
|
139 |
root |
1.6 |
struct uniform_i : var_i |
140 |
root |
1.5 |
{ |
141 |
root |
1.6 |
bool dirty; |
142 |
root |
1.5 |
|
143 |
|
|
virtual void update () = 0; |
144 |
|
|
|
145 |
root |
1.6 |
void build (shader_builder &b); |
146 |
|
|
void build_decl (ostringstream &b); |
147 |
|
|
uniform_i (CGtype cgtype, const char *strtype) : var_i (cgtype, strtype), dirty (true) { } |
148 |
root |
1.5 |
}; |
149 |
|
|
|
150 |
root |
1.6 |
template<int dimension, typename gltype, CGtype cgtype, const char *strtype, void (*upd)(CGparameter, const gltype *)> |
151 |
|
|
struct uniform2_i : uniform_i |
152 |
root |
1.5 |
{ |
153 |
|
|
gltype data[dimension]; |
154 |
|
|
|
155 |
|
|
void update () |
156 |
|
|
{ |
157 |
|
|
if (dirty) |
158 |
|
|
{ |
159 |
root |
1.6 |
upd (param, data); |
160 |
root |
1.5 |
dirty = false; |
161 |
|
|
} |
162 |
|
|
} |
163 |
|
|
|
164 |
root |
1.6 |
uniform2_i () : uniform_i (cgtype, strtype) { } |
165 |
root |
1.5 |
}; |
166 |
|
|
|
167 |
root |
1.6 |
template<int dimension, const char *strtype, void (*update)(CGparameter, const GLfloat *)> |
168 |
|
|
struct uniform_f_i : uniform2_i<dimension, GLfloat, CG_FLOAT, strtype, update> |
169 |
root |
1.5 |
{ |
170 |
|
|
}; |
171 |
|
|
|
172 |
root |
1.6 |
struct uniform_1f_i : uniform_f_i<1, str_float, cgGLSetParameter1fv> { |
173 |
root |
1.5 |
void operator =(GLfloat v) |
174 |
|
|
{ |
175 |
|
|
data[0] = v; |
176 |
|
|
dirty = true; |
177 |
|
|
} |
178 |
|
|
}; |
179 |
|
|
|
180 |
root |
1.6 |
struct uniform_2f_i : uniform_f_i<2, str_float2, cgGLSetParameter2fv> { }; |
181 |
root |
1.5 |
|
182 |
root |
1.6 |
struct uniform_3f_i : uniform_f_i<3, str_float3, cgGLSetParameter3fv> { |
183 |
root |
1.5 |
void operator =(const vec3 &v) |
184 |
|
|
{ |
185 |
|
|
data[0] = v.x; |
186 |
|
|
data[1] = v.y; |
187 |
|
|
data[2] = v.z; |
188 |
|
|
dirty = true; |
189 |
|
|
} |
190 |
|
|
}; |
191 |
|
|
|
192 |
root |
1.6 |
struct uniform_4f_i : uniform_f_i<4, str_float4, cgGLSetParameter4fv> { |
193 |
root |
1.5 |
void operator =(const gl::matrix &m) |
194 |
|
|
{ |
195 |
|
|
memcpy (data, m.data, 16 * sizeof (GLfloat)); |
196 |
|
|
dirty = true; |
197 |
|
|
} |
198 |
|
|
}; |
199 |
|
|
|
200 |
root |
1.6 |
struct uniform_matrix_f_i : uniform_f_i<16, str_float4x4, cgGLSetMatrixParameterfc> { }; |
201 |
root |
1.5 |
|
202 |
|
|
typedef ref<uniform_1f_i> uniform_1f; |
203 |
|
|
typedef ref<uniform_2f_i> uniform_2f; |
204 |
|
|
typedef ref<uniform_3f_i> uniform_3f; |
205 |
|
|
typedef ref<uniform_4f_i> uniform_4f; |
206 |
|
|
typedef ref<uniform_matrix_f_i> uniform_matrix_f; |
207 |
|
|
|
208 |
root |
1.6 |
struct stream_i : var_i |
209 |
root |
1.5 |
{ |
210 |
|
|
char binding[16]; |
211 |
|
|
|
212 |
root |
1.6 |
void build (shader_builder &b); |
213 |
|
|
void build_decl (ostringstream &b); |
214 |
|
|
stream_i (CGtype type, const char *strtype) : var_i (type, strtype) { } |
215 |
|
|
}; |
216 |
|
|
|
217 |
|
|
template<int dimension, GLenum gltype, CGtype cgtype, const char *strtype> |
218 |
|
|
struct varying_i : stream_i |
219 |
|
|
{ |
220 |
|
|
varying_i (const char *binding) |
221 |
|
|
: stream_i (cgtype, strtype) |
222 |
|
|
{ |
223 |
|
|
strcpy (this->binding, binding); |
224 |
|
|
} |
225 |
root |
1.5 |
|
226 |
|
|
void set (GLsizei stride, GLvoid *ptr) |
227 |
|
|
{ |
228 |
|
|
cgGLSetParameterPointer (param, dimension, gltype, stride, ptr); |
229 |
|
|
} |
230 |
|
|
}; |
231 |
|
|
|
232 |
root |
1.6 |
template<int dimension, const char *strtype> |
233 |
|
|
struct varying_f_i : varying_i<dimension, GL_FLOAT, CG_FLOAT, strtype> |
234 |
root |
1.5 |
{ |
235 |
root |
1.6 |
varying_f_i (const char *binding) : varying_i<dimension, GL_FLOAT, CG_FLOAT, strtype> (binding) { } |
236 |
root |
1.5 |
|
237 |
|
|
void set (const gl::vertex_buffer_object &vb, GLint offset) |
238 |
|
|
{ |
239 |
root |
1.6 |
varying_i<dimension, GL_FLOAT, CG_FLOAT, strtype>::set (gl::format_stride (vb.format), (GLvoid *)(long)offset); |
240 |
root |
1.5 |
} |
241 |
|
|
}; |
242 |
|
|
|
243 |
root |
1.6 |
struct varying_1f_i : varying_f_i<1, str_float> |
244 |
root |
1.5 |
{ |
245 |
root |
1.6 |
varying_1f_i (const char *binding) : varying_f_i<1, str_float> (binding) { } |
246 |
root |
1.5 |
}; |
247 |
|
|
|
248 |
root |
1.6 |
struct varying_2f_i : varying_f_i<2, str_float2> |
249 |
root |
1.5 |
{ |
250 |
root |
1.6 |
varying_2f_i (const char *binding) : varying_f_i<2, str_float2> (binding) { } |
251 |
root |
1.5 |
|
252 |
|
|
void set_t (const gl::vertex_buffer_object &vb) |
253 |
|
|
{ |
254 |
|
|
set (vb, gl::format_offset_t (vb.format)); |
255 |
|
|
} |
256 |
|
|
}; |
257 |
|
|
|
258 |
root |
1.6 |
struct varying_3f_i : varying_f_i<3, str_float3> |
259 |
root |
1.5 |
{ |
260 |
root |
1.6 |
varying_3f_i (const char *binding) : varying_f_i<3, str_float3> (binding) { } |
261 |
root |
1.5 |
|
262 |
|
|
void set_p (const gl::vertex_buffer_object &vb) |
263 |
|
|
{ |
264 |
|
|
set (vb, gl::format_offset_p (vb.format)); |
265 |
|
|
} |
266 |
|
|
|
267 |
|
|
void set_n (const gl::vertex_buffer_object &vb) |
268 |
|
|
{ |
269 |
|
|
set (vb, gl::format_offset_n (vb.format)); |
270 |
|
|
} |
271 |
|
|
}; |
272 |
|
|
|
273 |
root |
1.6 |
struct varying_4f_i : varying_f_i<4, str_float4> |
274 |
|
|
{ |
275 |
|
|
varying_4f_i (const char *binding) : varying_f_i<4, str_float4> (binding) { } |
276 |
|
|
}; |
277 |
|
|
|
278 |
|
|
template<class class_i> |
279 |
|
|
struct ref_varying : ref<class_i> |
280 |
|
|
{ |
281 |
|
|
ref_varying (const char *binding) |
282 |
|
|
: ref<class_i> (*new class_i (binding)) |
283 |
|
|
{ |
284 |
|
|
} |
285 |
|
|
}; |
286 |
|
|
|
287 |
|
|
typedef ref_varying<varying_1f_i> varying_1f; |
288 |
|
|
typedef ref_varying<varying_2f_i> varying_2f; |
289 |
|
|
typedef ref_varying<varying_3f_i> varying_3f; |
290 |
|
|
typedef ref_varying<varying_4f_i> varying_4f; |
291 |
|
|
|
292 |
|
|
extern struct vin |
293 |
|
|
{ |
294 |
|
|
static varying_3f position_3f; |
295 |
|
|
static varying_4f position_4f; |
296 |
|
|
static varying_3f normal_3f; |
297 |
|
|
static varying_4f normal_4f; |
298 |
|
|
static varying_3f color0_3f; |
299 |
|
|
static varying_4f color0_4f; |
300 |
|
|
static varying_3f color1_3f; |
301 |
|
|
static varying_4f color1_4f; |
302 |
|
|
static varying_1f psize_1f; |
303 |
|
|
static varying_1f attr6_1f, attr7_1f; |
304 |
|
|
static varying_2f attr6_2f, attr7_2f; |
305 |
|
|
static varying_3f attr6_3f, attr7_3f; |
306 |
|
|
static varying_4f attr6_4f, attr7_4f; |
307 |
root |
1.8 |
static varying_1f texcoord_1f[8]; |
308 |
|
|
static varying_2f texcoord_2f[8]; |
309 |
|
|
static varying_3f texcoord_3f[8]; |
310 |
|
|
static varying_4f texcoord_4f[8]; |
311 |
root |
1.6 |
|
312 |
|
|
bool is (const var &r); |
313 |
|
|
} vin; |
314 |
|
|
|
315 |
|
|
extern struct fin |
316 |
|
|
{ |
317 |
|
|
static varying_4f position_4f; |
318 |
|
|
static varying_4f color0_4f; |
319 |
|
|
static varying_4f color1_4f; |
320 |
root |
1.8 |
static varying_4f texcoord_4f[8]; |
321 |
root |
1.6 |
|
322 |
|
|
bool is (const var &r); |
323 |
|
|
} fin; |
324 |
|
|
|
325 |
|
|
extern struct fin &vout; |
326 |
|
|
|
327 |
|
|
extern struct fout |
328 |
|
|
{ |
329 |
|
|
static varying_4f color0_4f; |
330 |
|
|
static varying_3f color0_3f; |
331 |
|
|
static varying_4f color1_4f; |
332 |
|
|
static varying_3f color1_3f; |
333 |
|
|
static varying_1f depth_1f; |
334 |
|
|
|
335 |
|
|
bool is (const var &r); |
336 |
|
|
} fout; |
337 |
|
|
|
338 |
|
|
// predefined globals |
339 |
root |
1.8 |
extern uniform_matrix_f mvp, mv, proj; |
340 |
root |
1.6 |
|
341 |
|
|
struct temporary_i : var_i |
342 |
|
|
{ |
343 |
|
|
void build (shader_builder &b); |
344 |
|
|
|
345 |
|
|
temporary_i (CGtype cgtype, const char *strtype) : var_i (cgtype, strtype) { }; |
346 |
|
|
}; |
347 |
|
|
|
348 |
|
|
template<CGtype cgtype, const char *strtype> |
349 |
|
|
struct temp_ref : ref<temporary_i> |
350 |
root |
1.5 |
{ |
351 |
root |
1.6 |
temp_ref () |
352 |
root |
1.7 |
: ref<temporary_i> (*new temporary_i (cgtype, strtype)) |
353 |
root |
1.6 |
{ |
354 |
|
|
} |
355 |
root |
1.5 |
}; |
356 |
|
|
|
357 |
root |
1.6 |
typedef temp_ref<CG_FLOAT, str_float > temp_1f; |
358 |
|
|
typedef temp_ref<CG_FLOAT, str_float2 > temp_2f; |
359 |
|
|
typedef temp_ref<CG_FLOAT, str_float3 > temp_3f; |
360 |
|
|
typedef temp_ref<CG_FLOAT, str_float4 > temp_4f; |
361 |
|
|
typedef temp_ref<CG_FLOAT, str_float4x4> temp_matrix_f; |
362 |
root |
1.5 |
|
363 |
root |
1.8 |
template<CGtype cgtype, const char *strtype> |
364 |
|
|
struct sampler_i : uniform_i |
365 |
|
|
{ |
366 |
|
|
GLuint texture; |
367 |
|
|
|
368 |
|
|
void update () |
369 |
|
|
{ |
370 |
|
|
if (dirty) |
371 |
|
|
{ |
372 |
|
|
cgGLSetTextureParameter (param, texture); |
373 |
|
|
dirty = false; |
374 |
|
|
} |
375 |
|
|
} |
376 |
|
|
|
377 |
|
|
void begin () |
378 |
|
|
{ |
379 |
|
|
cgGLEnableTextureParameter (texture); |
380 |
|
|
} |
381 |
|
|
|
382 |
|
|
sampler_i (GLuint texturename) : uniform_i (cgtype, strtype), texture (texturename) { } |
383 |
|
|
}; |
384 |
|
|
|
385 |
|
|
struct sampler1d_i : sampler_i<CG_SAMPLER1D, str_sampler1d> |
386 |
|
|
{ |
387 |
|
|
sampler1d_i (GLuint texturename) : sampler_i<CG_SAMPLER1D, str_sampler1d> (texturename) { } |
388 |
|
|
}; |
389 |
|
|
|
390 |
|
|
struct sampler2d_i : sampler_i<CG_SAMPLER2D, str_sampler2d> |
391 |
|
|
{ |
392 |
|
|
sampler2d_i (GLuint texturename) : sampler_i<CG_SAMPLER2D, str_sampler2d> (texturename) { } |
393 |
|
|
}; |
394 |
|
|
|
395 |
|
|
struct sampler3d_i : sampler_i<CG_SAMPLER3D, str_sampler3d> |
396 |
|
|
{ |
397 |
|
|
sampler3d_i (GLuint texturename) : sampler_i<CG_SAMPLER3D, str_sampler3d> (texturename) { } |
398 |
|
|
}; |
399 |
|
|
|
400 |
|
|
struct samplerCUBE_i : sampler_i<CG_SAMPLERCUBE, str_samplerCUBE> |
401 |
root |
1.5 |
{ |
402 |
root |
1.8 |
samplerCUBE_i (GLuint texturename) : sampler_i<CG_SAMPLERCUBE, str_samplerCUBE> (texturename) { } |
403 |
root |
1.5 |
}; |
404 |
root |
1.8 |
|
405 |
|
|
struct samplerRECT_i : sampler_i<CG_SAMPLERRECT, str_samplerRECT> |
406 |
|
|
{ |
407 |
|
|
samplerRECT_i (GLuint texturename) : sampler_i<CG_SAMPLERRECT, str_samplerRECT> (texturename) { } |
408 |
|
|
}; |
409 |
|
|
|
410 |
|
|
template<class sampler_i> |
411 |
|
|
struct sampler_ref : ref<sampler_i> |
412 |
|
|
{ |
413 |
|
|
sampler_ref (GLuint texturename) |
414 |
|
|
: ref<sampler_i> (*new sampler_i (texturename)) |
415 |
|
|
{ |
416 |
|
|
} |
417 |
|
|
}; |
418 |
|
|
|
419 |
|
|
typedef sampler_ref<sampler1d_i> sampler1d; |
420 |
|
|
typedef sampler_ref<sampler2d_i> sampler2d; |
421 |
|
|
typedef sampler_ref<sampler3d_i> sampler3d; |
422 |
|
|
typedef sampler_ref<samplerCUBE_i> samplerCUBE; |
423 |
|
|
typedef sampler_ref<samplerRECT_i> samplerRECT; |
424 |
root |
1.5 |
|
425 |
root |
1.6 |
struct fragment_const_string_i : fragment_i |
426 |
|
|
{ |
427 |
|
|
const char *str; |
428 |
|
|
|
429 |
|
|
void build (shader_builder &b); |
430 |
|
|
|
431 |
|
|
fragment_const_string_i (const char *str) : str(str) { } |
432 |
|
|
}; |
433 |
|
|
|
434 |
|
|
struct fragment_vector_i : fragment_i, vector<fragment> |
435 |
|
|
{ |
436 |
|
|
void build (shader_builder &b); |
437 |
|
|
|
438 |
|
|
template<class fragment_i> |
439 |
|
|
fragment_vector_i &operator <<(ref<fragment_i> &f) |
440 |
|
|
{ |
441 |
|
|
push_back (f); |
442 |
|
|
return *this; |
443 |
|
|
} |
444 |
|
|
|
445 |
|
|
template<class fragment_i> |
446 |
|
|
fragment_vector_i &operator <<(fragment_i &f) |
447 |
|
|
{ |
448 |
|
|
push_back (f); |
449 |
|
|
return *this; |
450 |
|
|
} |
451 |
|
|
|
452 |
|
|
fragment_vector_i &operator <<(const char *s) |
453 |
|
|
{ |
454 |
|
|
push_back (*new fragment_const_string_i (s)); |
455 |
|
|
return *this; |
456 |
|
|
} |
457 |
|
|
}; |
458 |
|
|
|
459 |
|
|
typedef ref<fragment_vector_i> fragment_vector; |
460 |
|
|
|
461 |
|
|
struct shader_program : fragment_vector_i |
462 |
root |
1.5 |
{ |
463 |
root |
1.6 |
bool is_vertex; |
464 |
|
|
void print (); |
465 |
|
|
|
466 |
|
|
shader_program (bool is_vertex) : is_vertex(is_vertex) { } |
467 |
|
|
}; |
468 |
|
|
|
469 |
|
|
struct vertex_program : shader_program |
470 |
|
|
{ |
471 |
|
|
vertex_program () : shader_program (true) { } |
472 |
root |
1.5 |
}; |
473 |
root |
1.6 |
|
474 |
|
|
struct fragment_program : shader_program |
475 |
|
|
{ |
476 |
|
|
fragment_program () : shader_program (false) { } |
477 |
|
|
}; |
478 |
|
|
|
479 |
|
|
void debdebdebdebug ();//D |
480 |
root |
1.5 |
} |
481 |
root |
1.3 |
|
482 |
|
|
struct texture_execption |
483 |
|
|
{ |
484 |
|
|
texture_execption (string s) : msg(s) { } |
485 |
|
|
string msg; |
486 |
|
|
}; |
487 |
|
|
|
488 |
|
|
inline int power_of_two (int input) |
489 |
|
|
{ |
490 |
|
|
int value = 1; |
491 |
|
|
|
492 |
|
|
while (value < input) |
493 |
|
|
{ |
494 |
|
|
value <<= 1; |
495 |
|
|
} |
496 |
|
|
return value; |
497 |
|
|
} |
498 |
|
|
|
499 |
root |
1.1 |
struct material |
500 |
|
|
{ |
501 |
root |
1.2 |
virtual void begin () = 0; |
502 |
|
|
virtual void end () = 0; |
503 |
root |
1.1 |
virtual ~material (); |
504 |
|
|
}; |
505 |
|
|
|
506 |
|
|
struct simple_material : material |
507 |
|
|
{ |
508 |
|
|
colour diffuse, specular, emission; |
509 |
|
|
GLfloat shininess; |
510 |
|
|
|
511 |
root |
1.2 |
void begin (); |
512 |
|
|
void end (); |
513 |
root |
1.1 |
|
514 |
|
|
simple_material () |
515 |
|
|
: diffuse(1, 0, 1, 1) |
516 |
|
|
, specular(1, 0, 1, 1) |
517 |
|
|
, emission(1, 0, 1, 1) |
518 |
|
|
, shininess(1.) |
519 |
|
|
{ |
520 |
|
|
} |
521 |
|
|
}; |
522 |
|
|
|
523 |
root |
1.3 |
struct texture |
524 |
|
|
{ |
525 |
|
|
SDL_Surface *image; |
526 |
|
|
GLuint texture_pxls; |
527 |
|
|
GLfloat texcoord[4]; |
528 |
|
|
|
529 |
|
|
GLuint load_texture (SDL_Surface *surface, GLfloat *texcoord); |
530 |
|
|
|
531 |
|
|
texture(const char *f) |
532 |
|
|
{ |
533 |
|
|
image = IMG_Load (f); |
534 |
|
|
|
535 |
|
|
if (!image) |
536 |
|
|
throw (texture_execption ("Couldn't load " + (string) f + ": " + (string) IMG_GetError ())); |
537 |
|
|
|
538 |
|
|
texture_pxls = load_texture (image, (GLfloat*)&texcoord); |
539 |
|
|
if (texture_pxls == 0) |
540 |
|
|
throw (texture_execption ("Couldn't make GL Texture, failed to create new RGB SWSurface")); |
541 |
|
|
} |
542 |
|
|
}; |
543 |
|
|
|
544 |
|
|
extern CGcontext cgc; |
545 |
|
|
|
546 |
root |
1.6 |
struct xshader |
547 |
root |
1.3 |
{ |
548 |
|
|
CGprogram vsh, fsh; |
549 |
|
|
CGparameter lightpos; |
550 |
|
|
// mv, mvp |
551 |
|
|
CGprofile vsh_profile, fsh_profile; |
552 |
root |
1.4 |
CGparameter g_Texture; // the texture parameter |
553 |
root |
1.3 |
|
554 |
|
|
void check_cg_error (void) |
555 |
|
|
{ |
556 |
|
|
CGerror err = cgGetError (); |
557 |
|
|
|
558 |
|
|
if (err != CG_NO_ERROR) |
559 |
|
|
{ |
560 |
|
|
printf("CG error: %s\n", cgGetErrorString (err)); |
561 |
|
|
exit(1); |
562 |
|
|
} |
563 |
|
|
} |
564 |
root |
1.6 |
xshader (const char *vshp, const char *fshp) |
565 |
root |
1.3 |
{ |
566 |
|
|
vsh_profile = CG_PROFILE_ARBVP1; |
567 |
|
|
//if (cgGLIsProfileSupported (CG_PROFILE_VP30)) vsh_profile = CG_PROFILE_VP30; |
568 |
|
|
//if (cgGLIsProfileSupported (CG_PROFILE_VP40)) vsh_profile = CG_PROFILE_VP40; |
569 |
|
|
fsh_profile = CG_PROFILE_ARBFP1; |
570 |
|
|
//if (cgGLIsProfileSupported (CG_PROFILE_FP30)) fsh_profile = CG_PROFILE_FP30; |
571 |
|
|
//if (cgGLIsProfileSupported (CG_PROFILE_FP40)) fsh_profile = CG_PROFILE_FP40; |
572 |
|
|
|
573 |
|
|
vsh = cgCreateProgramFromFile (cgc, CG_SOURCE, vshp, vsh_profile, 0, 0); |
574 |
|
|
check_cg_error (); |
575 |
|
|
cgGLLoadProgram (vsh); |
576 |
|
|
check_cg_error (); |
577 |
|
|
|
578 |
|
|
fsh = cgCreateProgramFromFile (cgc, CG_SOURCE, fshp, fsh_profile, 0, 0); |
579 |
|
|
check_cg_error (); |
580 |
|
|
cgGLLoadProgram (fsh); |
581 |
|
|
check_cg_error (); |
582 |
|
|
|
583 |
root |
1.4 |
cgGLBindProgram (vsh); |
584 |
|
|
cgGLBindProgram (fsh); |
585 |
root |
1.3 |
|
586 |
|
|
// mv = cgGetNamedParameter (vsh, "WorldProj"); |
587 |
|
|
// mvp = cgGetNamedParameter (vsh, "WorldViewProj"); |
588 |
root |
1.4 |
//lightpos = cgGetNamedParameter (vsh, "LightPos"); |
589 |
|
|
//cgGLSetParameter4f (lightpos, 10, 10, 0, 1); //camera.p.x, camera.p.y, camera.p.z, 1); |
590 |
|
|
|
591 |
|
|
check_cg_error (); |
592 |
root |
1.3 |
} |
593 |
|
|
}; |
594 |
|
|
|
595 |
root |
1.6 |
struct osama_material : material, texture, xshader { |
596 |
root |
1.3 |
osama_material () |
597 |
root |
1.6 |
: xshader ("vsh.cg", "fsh.cg"), texture ("textures/osama.jpg") |
598 |
root |
1.3 |
{ |
599 |
|
|
g_Texture = cgGetNamedParameter(fsh, "Texture"); // the texture cg-warper ;) |
600 |
root |
1.4 |
cgGLSetTextureParameter(g_Texture, texture_pxls); // Bind the texture number 999 to g_Texture |
601 |
root |
1.3 |
} |
602 |
|
|
|
603 |
|
|
void begin (); |
604 |
|
|
void end (); |
605 |
|
|
|
606 |
|
|
}; |
607 |
|
|
|
608 |
|
|
void init_shaders (); |
609 |
root |
1.1 |
#endif |
610 |
|
|
|
611 |
|
|
|