12 float normalize<GLubyte>(GLubyte v)
16 float normalize<GLbyte>(GLbyte v)
17 { return (2*v+1)/255.0f; }
19 template<typename T, void (*func)(void *, float)>
20 void wrap_normalized(void *user_data, T v0)
21 { func(user_data, v0); }
23 template<typename T, void (*func)(void *, float, float)>
24 void wrap_normalized(void *user_data, T v0, T v1)
25 { func(user_data, v0, v1); }
27 template<typename T, void (*func)(void *, float, float, float)>
28 void wrap_normalized(void *user_data, T v0, T v1, T v2)
29 { func(user_data, v0, v1, v2); }
31 template<typename T, void (*func)(void *, float, float, float, float)>
32 void wrap_normalized(void *user_data, T v0, T v1, T v2, T v3)
33 { func(user_data, v0, v1, v2, v3); }
35 template<typename T, void (*func)(void *, T)>
36 void wrap_array(void *user_data, const T *v)
37 { func(user_data, v[0]); }
39 template<typename T, void (*func)(void *, T, T)>
40 void wrap_array(void *user_data, const T *v)
41 { func(user_data, v[0], v[1]); }
43 template<typename T, void (*func)(void *, T, T, T)>
44 void wrap_array(void *user_data, const T *v)
45 { func(user_data, v[0], v[1], v[2]); }
47 template<typename T, void (*func)(void *, T, T, T, T)>
48 void wrap_array(void *user_data, const T *v)
49 { func(user_data, v[0], v[1], v[2], v[3]); }
60 x(0), y(0), z(0), w(1)
65 decoder(gldecoder_new(this, NULL)),
75 vertex_array.kind = GL_VERTEX_ARRAY;
76 normal_array.kind = GL_NORMAL_ARRAY;
77 color_array.kind = GL_COLOR_ARRAY;
78 texcoord_arrays[0].kind = GL_TEXTURE_COORD_ARRAY;
79 texcoord_arrays[0].index = 0;
81 decoder->glGetIntegerv = glGetIntegerv;
83 decoder->glEnableClientState = glEnableClientState;
84 decoder->glDisableClientState = glDisableClientState;
86 decoder->glColor3ub = wrap_normalized<GLubyte, glColor3f>;
87 decoder->glColor3ubv = wrap_array<GLubyte, wrap_normalized<GLubyte, glColor3f> >;
88 decoder->glColor4ub = wrap_normalized<GLubyte, glColor4f>;
89 decoder->glColor4ubv = wrap_array<GLubyte, wrap_normalized<GLubyte, glColor4f> >;
90 decoder->glColor3f = glColor3f;
91 decoder->glColor3fv = wrap_array<float, glColor3f>;
92 decoder->glColor4f = glColor4f;
93 decoder->glColor4fv = wrap_array<float, glColor4f>;
94 decoder->glTexCoord1f = glTexCoord1f;
95 decoder->glTexCoord1fv = wrap_array<float, glTexCoord1f>;
96 decoder->glTexCoord2f = glTexCoord2f;
97 decoder->glTexCoord2fv = wrap_array<float, glTexCoord2f>;
98 decoder->glTexCoord3f = glTexCoord3f;
99 decoder->glTexCoord3fv = wrap_array<float, glTexCoord3f>;
100 decoder->glTexCoord4f = glTexCoord4f;
101 decoder->glTexCoord4fv = wrap_array<float, glTexCoord4f>;
102 decoder->glNormal3f = glNormal3f;
103 decoder->glNormal3fv = wrap_array<float, glNormal3f>;
105 decoder->glVertexPointer = glVertexPointer;
106 decoder->glNormalPointer = glNormalPointer;
107 decoder->glColorPointer = glColorPointer;
108 decoder->glClientActiveTexture = glClientActiveTexture;
109 decoder->glClientActiveTextureARB = glClientActiveTexture;
110 decoder->glTexCoordPointer = glTexCoordPointer;
111 decoder->glEnableVertexAttribArray = glEnableVertexAttribArray;
112 decoder->glEnableVertexAttribArrayARB = glEnableVertexAttribArray;
113 decoder->glDisableVertexAttribArray = glDisableVertexAttribArray;
114 decoder->glDisableVertexAttribArrayARB = glDisableVertexAttribArray;
115 decoder->glVertexAttribPointer = glVertexAttribPointer;
116 decoder->glVertexAttribPointerARB = glVertexAttribPointer;
118 decoder->glDrawElements = glDrawElements;
119 decoder->glDrawRangeElements = glDrawRangeElements;
120 decoder->glDrawRangeElementsEXT = glDrawRangeElements;
122 decoder->glBindBuffer = glBindBuffer;
123 decoder->glBindBufferARB = glBindBuffer;
124 decoder->glBindBufferBase = glBindBufferBase;
125 decoder->glBindBufferRange = glBindBufferRange;
126 decoder->glBufferData = glBufferData;
127 decoder->glBufferDataARB = glBufferData;
128 decoder->glBufferSubData = glBufferSubData;
129 decoder->glBufferSubDataARB = glBufferSubData;
130 decoder->glDeleteBuffers = glDeleteBuffers;
131 decoder->glDeleteBuffersARB = glDeleteBuffers;
133 decoder->glActiveTexture = glActiveTexture;
134 decoder->glActiveTextureARB = glActiveTexture;
135 decoder->glBindTexture = glBindTexture;
136 decoder->glTexImage2D = glTexImage2D;
137 decoder->glTexParameteri = glTexParameteri;
138 decoder->glTexParameteriv = glTexParameteriv;
139 decoder->glDeleteTextures = glDeleteTextures;
141 decoder->glCreateShader = glCreateShader;
142 decoder->glCreateShaderObjectARB = glCreateShader;
143 decoder->glShaderSource = glShaderSource;
144 decoder->glShaderSourceARB = glShaderSource;
145 decoder->glCompileShader = glCompileShader;
146 decoder->glCompileShaderARB = glCompileShader;
147 decoder->glGetShaderiv = glGetShaderiv;
148 decoder->glGetShaderInfoLog = glGetShaderInfoLog;
149 decoder->glDeleteShader = glDeleteShader;
150 decoder->glCreateProgram = glCreateProgram;
151 decoder->glCreateProgramObjectARB = glCreateProgram;
152 decoder->glAttachShader = glAttachShader;
153 decoder->glAttachObjectARB = glAttachShader;
154 decoder->glLinkProgram = glLinkProgram;
155 decoder->glLinkProgramARB = glLinkProgram;
156 decoder->glGetProgramiv = glGetProgramiv;
157 decoder->glGetProgramInfoLog = glGetProgramInfoLog;
158 decoder->glDeleteObjectARB = glDeleteObjectARB;
159 decoder->glGetObjectParameterivARB = glGetObjectParameterivARB;
160 decoder->glGetInfoLogARB = glGetInfoLogARB;
165 gldecoder_delete(decoder);
168 int GlState::decode(const char *data, unsigned len)
170 return gldecoder_decode(decoder, data, len);
173 void GlState::glGetIntegerv(void *user_data, GLenum pname, int *param)
175 GlState *self = reinterpret_cast<GlState *>(user_data);
176 if(pname==GL_MAX_TEXTURE_UNITS)
178 self->texcoord.resize(*param);
179 self->texunits.resize(*param);
180 self->texcoord_arrays.resize(*param);
181 for(unsigned i=0; i<self->texcoord_arrays.size(); ++i)
183 self->texcoord_arrays[i].kind = GL_TEXTURE_COORD_ARRAY;
184 self->texcoord_arrays[i].index = i;
187 else if(pname==GL_MAX_VERTEX_ATTRIBS)
189 self->attrib_arrays.resize(*param);
190 for(unsigned i=0; i<self->attrib_arrays.size(); ++i)
191 self->attrib_arrays[i].index = i;
193 else if(pname==GL_MAX_UNIFORM_BUFFER_BINDINGS)
194 self->uniform_bind_points.resize(*param);
199 bool &GlState::get_boolean_state(GLenum state)
201 if(state==GL_VERTEX_ARRAY)
202 return vertex_array.enabled;
203 else if(state==GL_NORMAL_ARRAY)
204 return normal_array.enabled;
205 else if(state==GL_COLOR_ARRAY)
206 return color_array.enabled;
207 else if(state==GL_TEXTURE_COORD_ARRAY)
208 return texcoord_arrays[client_active_tex].enabled;
214 void GlState::glEnableClientState(void *user_data, GLenum state)
216 reinterpret_cast<GlState *>(user_data)->get_boolean_state(state) = true;
219 void GlState::glDisableClientState(void *user_data, GLenum state)
221 reinterpret_cast<GlState *>(user_data)->get_boolean_state(state) = false;
226 void GlState::glColor3f(void *user_data, float r, float g, float b)
228 glColor4f(user_data, r, g, b, 1.0f);
231 void GlState::glColor4f(void *user_data, float r, float g, float b, float a)
233 Vector4 &color = reinterpret_cast<GlState *>(user_data)->color;
240 void GlState::glNormal3f(void *user_data, float x, float y, float z)
242 Vector3 &normal = reinterpret_cast<GlState *>(user_data)->normal;
248 void GlState::glTexCoord1f(void *user_data, float s)
250 glTexCoord4f(user_data, s, 0.0f, 0.0f, 1.0f);
253 void GlState::glTexCoord2f(void *user_data, float s, float t)
255 glTexCoord4f(user_data, s, t, 0.0f, 1.0f);
258 void GlState::glTexCoord3f(void *user_data, float s, float t, float p)
260 glTexCoord4f(user_data, s, t, p, 1.0f);
263 void GlState::glTexCoord4f(void *user_data, float s, float t, float p, float q)
265 unsigned index = reinterpret_cast<GlState *>(user_data)->active_tex;
266 glMultiTexCoord4f(user_data, index, s, t, p, q);
269 void GlState::glMultiTexCoord4f(void *user_data, unsigned index, float s, float t, float p, float q)
271 Vector4 &texcoord = reinterpret_cast<GlState *>(user_data)->texcoord[index];
280 void GlState::glVertexPointer(void *user_data, int size, GLenum type, int stride, const void *data)
282 GlState *self = reinterpret_cast<GlState *>(user_data);
283 self->vertex_array.set(size, type, false, stride, self->array_buffer, reinterpret_cast<long>(data));
286 void GlState::glNormalPointer(void *user_data, GLenum type, int stride, const void *data)
288 GlState *self = reinterpret_cast<GlState *>(user_data);
289 self->normal_array.set(3, type, true, stride, self->array_buffer, reinterpret_cast<long>(data));
292 void GlState::glColorPointer(void *user_data, int size, GLenum type, int stride, const void *data)
294 GlState *self = reinterpret_cast<GlState *>(user_data);
295 self->color_array.set(size, type, true, stride, self->array_buffer, reinterpret_cast<long>(data));
298 void GlState::glClientActiveTexture(void *user_data, unsigned index)
300 reinterpret_cast<GlState *>(user_data)->client_active_tex = index-GL_TEXTURE0;
303 void GlState::glTexCoordPointer(void *user_data, int size, GLenum type, int stride, const void *data)
305 GlState *self = reinterpret_cast<GlState *>(user_data);
306 self->texcoord_arrays[self->client_active_tex].set(size, type, false, stride, self->array_buffer, reinterpret_cast<long>(data));
309 void GlState::glEnableVertexAttribArray(void *user_data, unsigned index)
311 reinterpret_cast<GlState *>(user_data)->attrib_arrays[index].enabled = true;
314 void GlState::glDisableVertexAttribArray(void *user_data, unsigned index)
316 reinterpret_cast<GlState *>(user_data)->attrib_arrays[index].enabled = false;
319 void GlState::glVertexAttribPointer(void *user_data, unsigned index, int size, GLenum type, unsigned char norm, int stride, const void *data)
321 GlState *self = reinterpret_cast<GlState *>(user_data);
322 self->attrib_arrays[index].set(size, type, norm, stride, self->array_buffer, reinterpret_cast<long>(data));
325 const ArrayState &GlState::get_array(GLenum array) const
327 if(array==GL_VERTEX_ARRAY)
329 else if(array==GL_NORMAL_ARRAY)
331 else if(array==GL_COLOR_ARRAY)
333 else if(array==GL_TEXTURE_COORD_ARRAY)
334 return texcoord_arrays[client_active_tex];
336 throw logic_error("Invalid array");
339 const ArrayState &GlState::get_texture_coord_array(unsigned index) const
341 return texcoord_arrays[index];
344 const ArrayState &GlState::get_attrib_array(unsigned index) const
346 return attrib_arrays[index];
349 // Array draw commands
351 void GlState::glDrawElements(void *user_data, GLenum, int, GLenum type, const void *)
353 if(BufferState *buf = reinterpret_cast<GlState *>(user_data)->element_buffer)
354 buf->content.update_elements(type);
357 void GlState::glDrawRangeElements(void *user_data, GLenum, unsigned, unsigned, int, GLenum type, const void *)
359 if(BufferState *buf = reinterpret_cast<GlState *>(user_data)->element_buffer)
360 buf->content.update_elements(type);
365 void GlState::set_current_buffer(GLenum target, unsigned id)
367 BufferState *buf = 0;
375 if(target==GL_ARRAY_BUFFER)
377 else if(target==GL_ELEMENT_ARRAY_BUFFER)
378 element_buffer = buf;
379 else if(target==GL_UNIFORM_BUFFER)
380 uniform_buffer = buf;
383 BufferState *GlState::get_buffer_object(unsigned id)
385 BufferMap::iterator i = buffers.find(id);
386 return (i==buffers.end() ? 0 : &i->second);
389 BufferState *GlState::get_current_buffer(GLenum target)
391 if(target==GL_ARRAY_BUFFER)
393 else if(target==GL_ELEMENT_ARRAY_BUFFER)
394 return element_buffer;
395 else if(target==GL_UNIFORM_BUFFER)
396 return uniform_buffer;
400 BufferBindingState *GlState::get_buffer_binding(GLenum target, unsigned index)
402 if(target==GL_UNIFORM_BUFFER)
403 return &uniform_bind_points[index];
407 void GlState::glBindBuffer(void *user_data, GLenum target, unsigned id)
409 reinterpret_cast<GlState *>(user_data)->set_current_buffer(target, id);
412 void GlState::glBindBufferBase(void *user_data, GLenum target, unsigned index, unsigned id)
414 if(BufferState *buffer = reinterpret_cast<GlState *>(user_data)->get_buffer_object(id))
415 glBindBufferRange(user_data, target, index, id, 0, buffer->size);
418 void GlState::glBindBufferRange(void *user_data, GLenum target, unsigned index, unsigned id, int offset, int size)
420 GlState *self = reinterpret_cast<GlState *>(user_data);
421 if(BufferBindingState *binding = self->get_buffer_binding(target, index))
423 binding->buffer = self->get_buffer_object(id);
424 binding->offset = offset;
425 binding->size = size;
429 void GlState::glBufferData(void *user_data, GLenum target, int size, const void *data, GLenum usage)
431 if(BufferState *buf = reinterpret_cast<GlState *>(user_data)->get_current_buffer(target))
432 buf->set_data(size, data, usage);
435 void GlState::glBufferSubData(void *user_data, GLenum target, int offset, int size, const void *data)
437 if(BufferState *buf = reinterpret_cast<GlState *>(user_data)->get_current_buffer(target))
438 buf->set_sub_data(offset, size, data);
441 void GlState::glDeleteBuffers(void *user_data, int count, const unsigned *ids)
443 for(int i=0; i<count; ++i)
444 reinterpret_cast<GlState *>(user_data)->buffers.erase(ids[i]);
447 const BufferState &GlState::get_buffer(unsigned id) const
449 BufferMap::const_iterator i = buffers.find(id);
451 throw runtime_error("Unknown buffer");
455 const BufferState *GlState::get_current_buffer(GLenum target) const
457 return const_cast<GlState *>(this)->get_current_buffer(target);
460 const BufferBindingState &GlState::get_buffer_binding(GLenum target, unsigned index) const
462 if(target==GL_UNIFORM_BUFFER)
463 return uniform_bind_points[index];
464 throw runtime_error("This buffer target does not have indexed binding points");
469 void GlState::set_current_texture(GLenum target, unsigned id)
471 TexUnitState &unit = texunits[active_tex];
472 TextureState *tex = 0;
479 tex->target = target;
481 else if(tex->target!=target)
484 unit.set_current_texture(target, tex);
487 TextureState *GlState::get_current_texture(GLenum target)
489 return texunits[active_tex].get_current_texture(target);
492 void GlState::glActiveTexture(void *user_data, unsigned index)
494 reinterpret_cast<GlState *>(user_data)->active_tex = index-GL_TEXTURE0;
497 void GlState::glBindTexture(void *user_data, GLenum target, unsigned id)
499 reinterpret_cast<GlState *>(user_data)->set_current_texture(target, id);
502 void GlState::glTexImage2D(void *user_data, GLenum target, int level, int ifmt, int width, int height, int, GLenum, GLenum, const void *)
504 if(TextureState *tex = reinterpret_cast<GlState *>(user_data)->get_current_texture(target))
505 tex->set_image_2d(level, ifmt, width, height);
508 void GlState::glTexParameteri(void *user_data, GLenum target, GLenum param, int value)
510 glTexParameteriv(user_data, target, param, &value);
513 void GlState::glTexParameteriv(void *user_data, GLenum target, GLenum param, const int *values)
515 if(TextureState *tex = reinterpret_cast<GlState *>(user_data)->get_current_texture(target))
516 tex->set_parameter(param, values);
519 void GlState::glDeleteTextures(void *user_data, int count, const unsigned *ids)
521 for(int i=0; i<count; ++i)
522 reinterpret_cast<GlState *>(user_data)->textures.erase(ids[i]);
525 const TextureState &GlState::get_texture(unsigned id) const
527 TextureMap::const_iterator i = textures.find(id);
528 if(i==textures.end())
529 throw runtime_error("Unknown texture");
535 ShaderState *GlState::get_shader(unsigned id, bool create)
537 ShaderMap::iterator i = shaders.find(id);
538 if(i==shaders.end() && create)
540 i = shaders.insert(ShaderMap::value_type(id, ShaderState())).first;
543 return (i!=shaders.end() ? &i->second : 0);
546 void GlState::delete_shader(unsigned id)
548 ShaderMap::iterator i = shaders.find(id);
552 for(ProgramMap::const_iterator j=programs.begin(); j!=programs.end(); ++j)
554 const vector<ShaderState *> &prog_shaders = j->second.shaders;
555 for(vector<ShaderState *>::const_iterator k=prog_shaders.begin(); k!=prog_shaders.end(); ++k)
558 i->second.pending_delete = true;
566 ProgramState *GlState::get_program(unsigned id, bool create)
568 ProgramMap::iterator i = programs.find(id);
569 if(i==programs.end() && create)
571 i = programs.insert(ProgramMap::value_type(id, ProgramState())).first;
574 return (i!=programs.end() ? &i->second : 0);
577 void GlState::delete_program(unsigned id)
579 ProgramMap::iterator i = programs.find(id);
580 if(i==programs.end())
583 vector<ShaderState *> prog_shaders = i->second.shaders;
585 for(vector<ShaderState *>::const_iterator j=prog_shaders.begin(); j!=prog_shaders.end(); ++j)
586 if((*j)->pending_delete)
587 delete_shader((*j)->id);
590 void GlState::glCreateShader(void *user_data, unsigned id, GLenum type)
592 if(ShaderState *shader = reinterpret_cast<GlState *>(user_data)->get_shader(id, true))
596 void GlState::glShaderSource(void *user_data, unsigned id, int count, const char **str, const int *length)
598 if(ShaderState *shader = reinterpret_cast<GlState *>(user_data)->get_shader(id, false))
600 shader->source.clear();
601 for(int i=0; i<count; ++i)
603 if(!length || length[i]<0)
604 shader->source.push_back(str[i]);
606 shader->source.push_back(string(str[i], length[i]));
608 shader->source_changed = true;
612 void GlState::glCompileShader(void *user_data, unsigned id)
614 if(ShaderState *shader = reinterpret_cast<GlState *>(user_data)->get_shader(id, false))
615 shader->source_changed = false;
618 void GlState::glGetShaderiv(void *user_data, unsigned id, GLenum pname, int *param)
620 if(ShaderState *shader = reinterpret_cast<GlState *>(user_data)->get_shader(id, false))
622 if(pname==GL_COMPILE_STATUS)
623 shader->compile_status = *param;
627 void GlState::glGetShaderInfoLog(void *user_data, unsigned id, int, int *, char *log)
629 if(ShaderState *shader = reinterpret_cast<GlState *>(user_data)->get_shader(id, false))
630 shader->info_log = log;
633 void GlState::glDeleteShader(void *user_data, unsigned id)
635 reinterpret_cast<GlState *>(user_data)->delete_shader(id);
638 void GlState::glCreateProgram(void *user_data, unsigned id)
640 reinterpret_cast<GlState *>(user_data)->get_program(id, true);
643 void GlState::glAttachShader(void *user_data, unsigned prog_id, unsigned shader_id)
645 GlState *self = reinterpret_cast<GlState *>(user_data);
646 if(ProgramState *prog = self->get_program(prog_id, false))
647 if(ShaderState *shader = self->get_shader(shader_id, false))
648 prog->shaders.push_back(shader);
651 void GlState::glLinkProgram(void *user_data, unsigned id)
653 if(ProgramState *program = reinterpret_cast<GlState *>(user_data)->get_program(id, false))
654 program->shaders_changed = false;
657 void GlState::glGetProgramiv(void *user_data, unsigned id, GLenum pname, int *param)
659 if(ProgramState *program = reinterpret_cast<GlState *>(user_data)->get_program(id, false))
661 if(pname==GL_LINK_STATUS)
662 program->link_status = *param;
666 void GlState::glGetProgramInfoLog(void *user_data, unsigned id, int, int *, char *log)
668 if(ProgramState *program = reinterpret_cast<GlState *>(user_data)->get_program(id, false))
669 program->info_log = log;
672 void GlState::glDeleteProgram(void *user_data, unsigned id)
674 reinterpret_cast<GlState *>(user_data)->delete_program(id);
677 void GlState::glDeleteObjectARB(void *user_data, unsigned id)
679 GlState *self = reinterpret_cast<GlState *>(user_data);
680 if(self->shaders.count(id))
681 self->delete_shader(id);
682 else if(self->programs.count(id))
683 self->delete_program(id);
686 void GlState::glGetObjectParameterivARB(void *user_data, unsigned id, GLenum pname, int *param)
688 GlState *self = reinterpret_cast<GlState *>(user_data);
689 if(self->shaders.count(id))
690 glGetShaderiv(user_data, id, pname, param);
691 else if(self->programs.count(id))
692 glGetProgramiv(user_data, id, pname, param);
695 void GlState::glGetInfoLogARB(void *user_data, unsigned id, int bufsize, int *length, char *log)
697 GlState *self = reinterpret_cast<GlState *>(user_data);
698 if(self->shaders.count(id))
699 glGetShaderInfoLog(user_data, id, bufsize, length, log);
700 else if(self->programs.count(id))
701 glGetProgramInfoLog(user_data, id, bufsize, length, log);
704 const ShaderState &GlState::get_shader(unsigned id) const
706 ShaderMap::const_iterator i = shaders.find(id);
708 throw runtime_error("Unknown shader");
712 const ProgramState &GlState::get_program(unsigned id) const
714 ProgramMap::const_iterator i = programs.find(id);
715 if(i==programs.end())
716 throw runtime_error("Unknown program");