1 ##########################################################################
3 # Copyright 2011 Jose Fonseca
6 # Permission is hereby granted, free of charge, to any person obtaining a copy
7 # of this software and associated documentation files (the "Software"), to deal
8 # in the Software without restriction, including without limitation the rights
9 # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 # copies of the Software, and to permit persons to whom the Software is
11 # furnished to do so, subject to the following conditions:
13 # The above copyright notice and this permission notice shall be included in
14 # all copies or substantial portions of the Software.
16 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24 ##########################################################################/
27 '''Generate code to dump most GL state into JSON.'''
33 from glparams import *
37 ('GL_TEXTURE_1D', 'GL_TEXTURE_BINDING_1D'),
38 ('GL_TEXTURE_2D', 'GL_TEXTURE_BINDING_2D'),
39 ('GL_TEXTURE_3D', 'GL_TEXTURE_BINDING_3D'),
40 ('GL_TEXTURE_RECTANGLE', 'GL_TEXTURE_BINDING_RECTANGLE'),
41 ('GL_TEXTURE_CUBE_MAP', 'GL_TEXTURE_BINDING_CUBE_MAP')
46 '''Objects that describes how to inflect.'''
54 def __init__(self, radical, inflections, suffix = ''):
55 self.radical = radical
56 self.inflections = inflections
59 def reduced_type(self, type):
60 if type in self.inflections:
62 if type in self.reduced_types:
63 return self.reduced_type(self.reduced_types[type])
64 raise NotImplementedError
66 def inflect(self, type):
67 return self.radical + self.inflection(type) + self.suffix
69 def inflection(self, type):
70 type = self.reduced_type(type)
71 assert type in self.inflections
72 return self.inflections[type]
75 return self.radical + self.suffix
78 class StateGetter(Visitor):
79 '''Type visitor that is able to extract the state via one of the glGet*
82 It will declare any temporary variable
85 def __init__(self, radical, inflections, suffix=''):
86 self.inflector = GetInflector(radical, inflections)
89 def __call__(self, *args):
92 for function, type, count, name in parameters:
97 type = Array(type, str(count))
99 return type, self.visit(type, args)
101 raise NotImplementedError
103 def temp_name(self, args):
104 '''Return the name of a temporary variable to hold the state.'''
107 return pname[3:].lower()
109 def visit_const(self, const, args):
110 return self.visit(const.type, args)
112 def visit_scalar(self, type, args):
113 temp_name = self.temp_name(args)
114 elem_type = self.inflector.reduced_type(type)
115 inflection = self.inflector.inflect(type)
116 if inflection.endswith('v'):
117 print ' %s %s = 0;' % (elem_type, temp_name)
118 print ' %s(%s, &%s);' % (inflection + self.suffix, ', '.join(args), temp_name)
120 print ' %s %s = %s(%s);' % (elem_type, temp_name, inflection + self.suffix, ', '.join(args))
123 def visit_string(self, string, args):
124 temp_name = self.temp_name(args)
125 inflection = self.inflector.inflect(string)
126 assert not inflection.endswith('v')
127 print ' %s %s = (%s)%s(%s);' % (string, temp_name, string, inflection + self.suffix, ', '.join(args))
130 def visit_alias(self, alias, args):
131 return self.visit_scalar(alias, args)
133 def visit_enum(self, enum, args):
134 return self.visit(GLint, args)
136 def visit_bitmask(self, bitmask, args):
137 return self.visit(GLint, args)
139 def visit_array(self, array, args):
140 temp_name = self.temp_name(args)
141 if array.length == '1':
142 return self.visit(array.type)
143 elem_type = self.inflector.reduced_type(array.type)
144 inflection = self.inflector.inflect(array.type)
145 assert inflection.endswith('v')
146 print ' %s %s[%s];' % (elem_type, temp_name, array.length)
147 print ' memset(%s, 0, %s * sizeof *%s);' % (temp_name, array.length, temp_name)
148 print ' %s(%s, %s);' % (inflection + self.suffix, ', '.join(args), temp_name)
151 def visit_opaque(self, pointer, args):
152 temp_name = self.temp_name(args)
153 inflection = self.inflector.inflect(pointer)
154 assert inflection.endswith('v')
155 print ' GLvoid *%s;' % temp_name
156 print ' %s(%s, &%s);' % (inflection + self.suffix, ', '.join(args), temp_name)
160 glGet = StateGetter('glGet', {
169 glGetMaterial = StateGetter('glGetMaterial', {I: 'iv', F: 'fv'})
170 glGetLight = StateGetter('glGetLight', {I: 'iv', F: 'fv'})
171 glGetVertexAttrib = StateGetter('glGetVertexAttrib', {I: 'iv', F: 'fv', D: 'dv', P: 'Pointerv'})
172 glGetTexParameter = StateGetter('glGetTexParameter', {I: 'iv', F: 'fv'})
173 glGetTexEnv = StateGetter('glGetTexEnv', {I: 'iv', F: 'fv'})
174 glGetTexLevelParameter = StateGetter('glGetTexLevelParameter', {I: 'iv', F: 'fv'})
175 glGetProgramARB = StateGetter('glGetProgram', {I: 'iv', F: 'fv', S: 'Stringv'}, 'ARB')
178 class JsonWriter(Visitor):
179 '''Type visitor that will dump a value of the specified type through the
182 It expects a previously declared JSONWriter instance named "json".'''
184 def visit_literal(self, literal, instance):
185 if literal.format == 'Bool':
186 print ' json.writeBool(%s);' % instance
187 elif literal.format in ('SInt', 'Uint', 'Float', 'Double'):
188 print ' json.writeNumber(%s);' % instance
190 raise NotImplementedError
192 def visit_string(self, string, instance):
193 assert string.length is None
194 print ' json.writeString((const char *)%s);' % instance
196 def visit_enum(self, enum, instance):
197 if enum.expr == 'GLenum':
198 print ' writeEnum(json, %s);' % instance
200 print ' json.writeNumber(%s);' % instance
202 def visit_bitmask(self, bitmask, instance):
203 raise NotImplementedError
205 def visit_alias(self, alias, instance):
206 self.visit(alias.type, instance)
208 def visit_opaque(self, opaque, instance):
209 print ' json.writeNumber((size_t)%s);' % instance
213 def visit_array(self, array, instance):
214 index = '__i%u' % JsonWriter.__index
215 JsonWriter.__index += 1
216 print ' json.beginArray();'
217 print ' for (unsigned %s = 0; %s < %s; ++%s) {' % (index, index, array.length, index)
218 self.visit(array.type, '%s[%s]' % (instance, index))
220 print ' json.endArray();'
225 '''Class to generate code to dump all GL state in JSON format via
232 print '#include <string.h>'
233 print '#include <iostream>'
234 print '#include <algorithm>'
236 print '#include "image.hpp"'
237 print '#include "json.hpp"'
238 print '#include "glimports.hpp"'
239 print '#include "glproc.hpp"'
240 print '#include "glsize.hpp"'
241 print '#include "glretrace.hpp"'
244 print 'static const char *'
245 print '_enum_string(GLenum pname)'
247 print ' switch(pname) {'
248 for name in GLenum.values:
249 print ' case %s:' % name
250 print ' return "%s";' % name
252 print ' return NULL;'
257 print 'static const char *'
258 print 'enum_string(GLenum pname)'
260 print ' const char *s = _enum_string(pname);'
264 print ' static char buf[16];'
265 print ' snprintf(buf, sizeof buf, "0x%04x", pname);'
271 print 'static inline void'
272 print 'writeEnum(JSONWriter &json, GLenum pname)'
274 print ' const char *s = _enum_string(pname);'
276 print ' json.writeString(s);'
278 print ' json.writeNumber(pname);'
286 writeShader(JSONWriter &json, GLuint shader)
292 GLint shader_type = 0;
293 glGetShaderiv(shader, GL_SHADER_TYPE, &shader_type);
298 GLint source_length = 0;
299 glGetShaderiv(shader, GL_SHADER_SOURCE_LENGTH, &source_length);
300 if (!source_length) {
304 GLchar *source = new GLchar[source_length];
307 glGetShaderSource(shader, source_length, &length, source);
309 json.beginMember(enum_string(shader_type));
310 json.writeString(source);
317 writeCurrentProgram(JSONWriter &json)
320 glGetIntegerv(GL_CURRENT_PROGRAM, &program);
325 GLint attached_shaders = 0;
326 glGetProgramiv(program, GL_ATTACHED_SHADERS, &attached_shaders);
327 if (!attached_shaders) {
331 GLuint *shaders = new GLuint[attached_shaders];
333 glGetAttachedShaders(program, attached_shaders, &count, shaders);
334 for (GLsizei i = 0; i < count; ++ i) {
335 writeShader(json, shaders[i]);
341 writeArbProgram(JSONWriter &json, GLenum target)
343 if (!glIsEnabled(target)) {
347 GLint program_length = 0;
348 glGetProgramivARB(target, GL_PROGRAM_LENGTH_ARB, &program_length);
349 if (!program_length) {
353 GLchar *source = new GLchar[program_length + 1];
355 glGetProgramStringARB(target, GL_PROGRAM_STRING_ARB, source);
356 source[program_length] = 0;
358 json.beginMember(enum_string(target));
359 json.writeString(source);
369 writeTextureImage(JSONWriter &json, GLenum target, GLint level)
371 GLint width, height = 1, depth = 1;
374 glGetTexLevelParameteriv(target, level, GL_TEXTURE_WIDTH, &width);
376 if (target != GL_TEXTURE_1D) {
378 glGetTexLevelParameteriv(target, level, GL_TEXTURE_HEIGHT, &height);
379 if (target == GL_TEXTURE_3D) {
381 glGetTexLevelParameteriv(target, level, GL_TEXTURE_DEPTH, &depth);
385 if (width <= 0 || height <= 0 || depth <= 0) {
390 GLint active_texture = GL_TEXTURE0;
391 glGetIntegerv(GL_ACTIVE_TEXTURE, &active_texture);
392 snprintf(label, sizeof label, "%s, %s, level = %i", _enum_string(active_texture), _enum_string(target), level);
394 json.beginMember(label);
398 // Tell the GUI this is no ordinary object, but an image
399 json.writeStringMember("__class__", "image");
401 json.writeNumberMember("__width__", width);
402 json.writeNumberMember("__height__", height);
403 json.writeNumberMember("__depth__", depth);
405 // Hardcoded for now, but we could chose types more adequate to the
406 // texture internal format
407 json.writeStringMember("__type__", "uint8");
408 json.writeBoolMember("__normalized__", true);
409 json.writeNumberMember("__channels__", 4);
411 GLubyte *pixels = new GLubyte[depth*width*height*4];
413 glGetTexImage(target, level, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
415 json.beginMember("__data__");
418 Image::writePixelsToBuffer(pixels, width, height, 4, false, &pngBuffer, &pngBufferSize);
419 json.writeBase64(pngBuffer, pngBufferSize);
421 json.endMember(); // __data__
429 writeDrawBufferImage(JSONWriter &json, GLenum format)
431 GLint width = glretrace::window_width;
432 GLint height = glretrace::window_height;
434 GLint channels = __gl_format_channels(format);
436 if (!width || !height) {
441 // Tell the GUI this is no ordinary object, but an image
442 json.writeStringMember("__class__", "image");
444 json.writeNumberMember("__width__", width);
445 json.writeNumberMember("__height__", height);
446 json.writeNumberMember("__depth__", 1);
448 // Hardcoded for now, but we could chose types more adequate to the
449 // texture internal format
450 json.writeStringMember("__type__", "uint8");
451 json.writeBoolMember("__normalized__", true);
452 json.writeNumberMember("__channels__", channels);
454 GLubyte *pixels = new GLubyte[width*height*channels];
456 GLint drawbuffer = glretrace::double_buffer ? GL_BACK : GL_FRONT;
457 GLint readbuffer = glretrace::double_buffer ? GL_BACK : GL_FRONT;
458 glGetIntegerv(GL_DRAW_BUFFER, &drawbuffer);
459 glGetIntegerv(GL_READ_BUFFER, &readbuffer);
460 glReadBuffer(drawbuffer);
462 glPushClientAttrib(GL_CLIENT_PIXEL_STORE_BIT);
463 glPixelStorei(GL_PACK_ALIGNMENT, 1);
465 glReadPixels(0, 0, width, height, format, GL_UNSIGNED_BYTE, pixels);
468 glReadBuffer(readbuffer);
470 json.beginMember("__data__");
473 Image::writePixelsToBuffer(pixels, width, height, channels, false, &pngBuffer, &pngBufferSize);
474 //std::cerr <<" Before = "<<(width * height * channels * sizeof *pixels)
475 // <<", after = "<<pngBufferSize << ", ratio = " << double(width * height * channels * sizeof *pixels)/pngBufferSize;
476 json.writeBase64(pngBuffer, pngBufferSize);
478 json.endMember(); // __data__
486 downsampledFramebuffer(GLuint oldFbo, GLint drawbuffer,
487 GLint colorRb, GLint depthRb, GLint stencilRb,
488 GLuint *rbs, GLint *numRbs)
496 glGenFramebuffers(1, &fbo);
497 glBindFramebuffer(GL_FRAMEBUFFER, fbo);
499 glBindRenderbuffer(GL_RENDERBUFFER, colorRb);
500 glGetRenderbufferParameteriv(GL_RENDERBUFFER,
501 GL_RENDERBUFFER_WIDTH, &w);
502 glGetRenderbufferParameteriv(GL_RENDERBUFFER,
503 GL_RENDERBUFFER_HEIGHT, &h);
504 glGetRenderbufferParameteriv(GL_RENDERBUFFER,
505 GL_RENDERBUFFER_INTERNAL_FORMAT, &format);
507 glGenRenderbuffers(1, &rbs[*numRbs]);
508 glBindRenderbuffer(GL_RENDERBUFFER, rbs[*numRbs]);
509 glRenderbufferStorage(GL_RENDERBUFFER, format, w, h);
510 glFramebufferRenderbuffer(GL_FRAMEBUFFER, drawbuffer,
511 GL_RENDERBUFFER, rbs[*numRbs]);
513 glBindFramebuffer(GL_READ_FRAMEBUFFER, oldFbo);
514 glBindFramebuffer(GL_DRAW_FRAMEBUFFER, fbo);
515 glDrawBuffer(drawbuffer);
516 glReadBuffer(drawbuffer);
517 glBlitFramebuffer(0, 0, w, h, 0, 0, w, h,
518 GL_COLOR_BUFFER_BIT, GL_NEAREST);
519 glBindFramebuffer(GL_FRAMEBUFFER, fbo);
522 if (stencilRb == depthRb && stencilRb) {
523 //combined depth and stencil buffer
524 glBindRenderbuffer(GL_RENDERBUFFER, depthRb);
525 glGetRenderbufferParameteriv(GL_RENDERBUFFER,
526 GL_RENDERBUFFER_WIDTH, &w);
527 glGetRenderbufferParameteriv(GL_RENDERBUFFER,
528 GL_RENDERBUFFER_HEIGHT, &h);
529 glGetRenderbufferParameteriv(GL_RENDERBUFFER,
530 GL_RENDERBUFFER_INTERNAL_FORMAT, &format);
532 glGenRenderbuffers(1, &rbs[*numRbs]);
533 glBindRenderbuffer(GL_RENDERBUFFER, rbs[*numRbs]);
534 glRenderbufferStorage(GL_RENDERBUFFER, format, w, h);
535 glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT,
536 GL_RENDERBUFFER, rbs[*numRbs]);
537 glBindFramebuffer(GL_READ_FRAMEBUFFER, oldFbo);
538 glBindFramebuffer(GL_DRAW_FRAMEBUFFER, fbo);
539 glBlitFramebuffer(0, 0, w, h, 0, 0, w, h,
540 GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT, GL_NEAREST);
541 glBindFramebuffer(GL_FRAMEBUFFER, fbo);
545 glBindRenderbuffer(GL_RENDERBUFFER, depthRb);
546 glGetRenderbufferParameteriv(GL_RENDERBUFFER,
547 GL_RENDERBUFFER_WIDTH, &w);
548 glGetRenderbufferParameteriv(GL_RENDERBUFFER,
549 GL_RENDERBUFFER_HEIGHT, &h);
550 glGetRenderbufferParameteriv(GL_RENDERBUFFER,
551 GL_RENDERBUFFER_INTERNAL_FORMAT, &format);
553 glGenRenderbuffers(1, &rbs[*numRbs]);
554 glBindRenderbuffer(GL_RENDERBUFFER, rbs[*numRbs]);
555 glRenderbufferStorage(GL_RENDERBUFFER, format, w, h);
556 glFramebufferRenderbuffer(GL_FRAMEBUFFER,
558 GL_RENDERBUFFER, rbs[*numRbs]);
559 glBindFramebuffer(GL_READ_FRAMEBUFFER, oldFbo);
560 glBindFramebuffer(GL_DRAW_FRAMEBUFFER, fbo);
561 glDrawBuffer(GL_DEPTH_ATTACHMENT);
562 glReadBuffer(GL_DEPTH_ATTACHMENT);
563 glBlitFramebuffer(0, 0, w, h, 0, 0, w, h,
564 GL_DEPTH_BUFFER_BIT, GL_NEAREST);
568 glBindRenderbuffer(GL_RENDERBUFFER, stencilRb);
569 glGetRenderbufferParameteriv(GL_RENDERBUFFER,
570 GL_RENDERBUFFER_WIDTH, &w);
571 glGetRenderbufferParameteriv(GL_RENDERBUFFER,
572 GL_RENDERBUFFER_HEIGHT, &h);
573 glGetRenderbufferParameteriv(GL_RENDERBUFFER,
574 GL_RENDERBUFFER_INTERNAL_FORMAT, &format);
576 glGenRenderbuffers(1, &rbs[*numRbs]);
577 glBindRenderbuffer(GL_RENDERBUFFER, rbs[*numRbs]);
578 glRenderbufferStorage(GL_RENDERBUFFER, format, w, h);
579 glFramebufferRenderbuffer(GL_FRAMEBUFFER,
580 GL_STENCIL_ATTACHMENT,
581 GL_RENDERBUFFER, rbs[*numRbs]);
582 glBindFramebuffer(GL_READ_FRAMEBUFFER, oldFbo);
583 glBindFramebuffer(GL_DRAW_FRAMEBUFFER, fbo);
584 glDrawBuffer(GL_STENCIL_ATTACHMENT);
585 glReadBuffer(GL_STENCIL_ATTACHMENT);
586 glBlitFramebuffer(0, 0, w, h, 0, 0, w, h,
587 GL_STENCIL_BUFFER_BIT, GL_NEAREST);
596 writeDrawBuffers(JSONWriter &json, GLboolean writeDepth, GLboolean writeStencil)
598 json.beginMember("GL_RGBA");
599 writeDrawBufferImage(json, GL_RGBA);
603 json.beginMember("GL_DEPTH_COMPONENT");
604 writeDrawBufferImage(json, GL_DEPTH_COMPONENT);
609 json.beginMember("GL_STENCIL_INDEX");
610 writeDrawBufferImage(json, GL_STENCIL_INDEX);
618 print 'static inline void'
619 print 'writeTexture(JSONWriter &json, GLenum target, GLenum binding)'
621 print ' GLint texture_binding = 0;'
622 print ' glGetIntegerv(binding, &texture_binding);'
623 print ' if (!glIsEnabled(target) && !texture_binding) {'
627 print ' GLint level = 0;'
629 print ' GLint width = 0, height = 0;'
630 print ' glGetTexLevelParameteriv(target, level, GL_TEXTURE_WIDTH, &width);'
631 print ' glGetTexLevelParameteriv(target, level, GL_TEXTURE_HEIGHT, &height);'
632 print ' if (!width || !height) {'
636 print ' if (target == GL_TEXTURE_CUBE_MAP) {'
637 print ' for (int face = 0; face < 6; ++face) {'
638 print ' writeTextureImage(json, GL_TEXTURE_CUBE_MAP_POSITIVE_X + face, level);'
641 print ' writeTextureImage(json, target, level);'
645 print ' } while(true);'
649 print 'void glretrace::state_dump(std::ostream &os)'
651 print ' JSONWriter json(os);'
652 self.dump_parameters()
653 self.dump_current_program()
655 self.dump_framebuffer()
659 def dump_parameters(self):
660 print ' json.beginMember("parameters");'
661 print ' json.beginObject();'
663 self.dump_atoms(glGet)
665 self.dump_material_params()
666 self.dump_light_params()
667 self.dump_vertex_attribs()
668 self.dump_texenv_params()
669 self.dump_program_params()
670 self.dump_texture_parameters()
672 print ' json.endObject();'
673 print ' json.endMember(); // parameters'
676 def dump_material_params(self):
677 for face in ['GL_FRONT', 'GL_BACK']:
678 print ' json.beginMember("%s");' % face
679 print ' json.beginObject();'
680 self.dump_atoms(glGetMaterial, face)
681 print ' json.endObject();'
684 def dump_light_params(self):
685 print ' GLint max_lights = 0;'
686 print ' __glGetIntegerv(GL_MAX_LIGHTS, &max_lights);'
687 print ' for (GLint index = 0; index < max_lights; ++index) {'
688 print ' GLenum light = GL_LIGHT0 + index;'
689 print ' if (glIsEnabled(light)) {'
690 print ' char name[32];'
691 print ' snprintf(name, sizeof name, "GL_LIGHT%i", index);'
692 print ' json.beginMember(name);'
693 print ' json.beginObject();'
694 self.dump_atoms(glGetLight, ' GL_LIGHT0 + index')
695 print ' json.endObject();'
696 print ' json.endMember(); // GL_LIGHTi'
701 def dump_texenv_params(self):
702 for target in ['GL_TEXTURE_ENV', 'GL_TEXTURE_FILTER_CONTROL', 'GL_POINT_SPRITE']:
703 if target != 'GL_TEXTURE_FILTER_CONTROL':
704 print ' if (glIsEnabled(%s)) {' % target
707 print ' json.beginMember("%s");' % target
708 print ' json.beginObject();'
709 self.dump_atoms(glGetTexEnv, target)
710 print ' json.endObject();'
713 def dump_vertex_attribs(self):
714 print ' GLint max_vertex_attribs = 0;'
715 print ' __glGetIntegerv(GL_MAX_VERTEX_ATTRIBS, &max_vertex_attribs);'
716 print ' for (GLint index = 0; index < max_vertex_attribs; ++index) {'
717 print ' char name[32];'
718 print ' snprintf(name, sizeof name, "GL_VERTEX_ATTRIB_ARRAY%i", index);'
719 print ' json.beginMember(name);'
720 print ' json.beginObject();'
721 self.dump_atoms(glGetVertexAttrib, 'index')
722 print ' json.endObject();'
723 print ' json.endMember(); // GL_VERTEX_ATTRIB_ARRAYi'
728 'GL_FRAGMENT_PROGRAM_ARB',
729 'GL_VERTEX_PROGRAM_ARB',
732 def dump_program_params(self):
733 for target in self.program_targets:
734 print ' if (glIsEnabled(%s)) {' % target
735 print ' json.beginMember("%s");' % target
736 print ' json.beginObject();'
737 self.dump_atoms(glGetProgramARB, target)
738 print ' json.endObject();'
741 def dump_texture_parameters(self):
743 print ' GLint active_texture = GL_TEXTURE0;'
744 print ' glGetIntegerv(GL_ACTIVE_TEXTURE, &active_texture);'
745 print ' GLint max_texture_coords = 0;'
746 print ' glGetIntegerv(GL_MAX_TEXTURE_COORDS, &max_texture_coords);'
747 print ' GLint max_combined_texture_image_units = 0;'
748 print ' glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, &max_combined_texture_image_units);'
749 print ' GLint max_units = std::max(max_combined_texture_image_units, max_texture_coords);'
750 print ' for (GLint unit = 0; unit < max_units; ++unit) {'
751 print ' char name[32];'
752 print ' snprintf(name, sizeof name, "GL_TEXTURE%i", unit);'
753 print ' json.beginMember(name);'
754 print ' glActiveTexture(GL_TEXTURE0 + unit);'
755 print ' json.beginObject();'
756 print ' GLint texture;'
758 for target, binding in texture_targets:
759 print ' // %s' % target
760 print ' texture = 0;'
761 print ' glGetIntegerv(%s, &texture);' % binding
762 print ' if (glIsEnabled(%s) || texture) {' % target
763 print ' json.beginMember("%s");' % target
764 print ' json.beginObject();'
765 self.dump_atoms(glGetTexParameter, target)
766 # We only dump the first level parameters
767 self.dump_atoms(glGetTexLevelParameter, target, "0")
768 print ' json.endObject();'
769 print ' json.endMember(); // %s' % target
772 print ' json.endObject();'
773 print ' json.endMember(); // GL_TEXTUREi'
775 print ' glActiveTexture(active_texture);'
779 def dump_current_program(self):
780 print ' json.beginMember("shaders");'
781 print ' json.beginObject();'
782 print ' writeCurrentProgram(json);'
783 for target in self.program_targets:
784 print ' writeArbProgram(json, %s);' % target
785 print ' json.endObject();'
786 print ' json.endMember(); //shaders'
789 def dump_textures(self):
791 print ' json.beginMember("textures");'
792 print ' json.beginObject();'
793 print ' GLint active_texture = GL_TEXTURE0;'
794 print ' glGetIntegerv(GL_ACTIVE_TEXTURE, &active_texture);'
795 print ' GLint max_texture_coords = 0;'
796 print ' glGetIntegerv(GL_MAX_TEXTURE_COORDS, &max_texture_coords);'
797 print ' GLint max_combined_texture_image_units = 0;'
798 print ' glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, &max_combined_texture_image_units);'
799 print ' GLint max_units = std::max(max_combined_texture_image_units, max_texture_coords);'
800 print ' for (GLint unit = 0; unit < max_units; ++unit) {'
801 print ' GLenum texture = GL_TEXTURE0 + unit;'
802 print ' glActiveTexture(texture);'
803 for target, binding in texture_targets:
804 print ' writeTexture(json, %s, %s);' % (target, binding)
806 print ' glActiveTexture(active_texture);'
807 print ' json.endObject();'
808 print ' json.endMember(); // textures'
812 def dump_framebuffer(self):
813 print ' json.beginMember("framebuffer");'
814 print ' json.beginObject();'
815 # TODO: Handle real FBOs
817 print ' GLint boundDrawFbo = 0, boundReadFbo = 0;'
818 print ' glGetIntegerv(GL_DRAW_FRAMEBUFFER_BINDING, &boundDrawFbo);'
819 print ' glGetIntegerv(GL_READ_FRAMEBUFFER_BINDING, &boundReadFbo);'
820 print ' if (!boundDrawFbo) {'
821 print ' GLint depth_bits = 0;'
822 print ' glGetIntegerv(GL_DEPTH_BITS, &depth_bits);'
823 print ' GLint stencil_bits = 0;'
824 print ' glGetIntegerv(GL_STENCIL_BITS, &stencil_bits);'
825 print ' writeDrawBuffers(json, depth_bits, stencil_bits);'
827 print ' GLint colorRb, stencilRb, depthRb;'
828 print ' GLint boundRb;'
829 print ' glGetIntegerv(GL_RENDERBUFFER_BINDING, &boundRb);'
830 print ' GLint drawbuffer = glretrace::double_buffer ? GL_BACK : GL_FRONT;'
831 print ' glGetIntegerv(GL_DRAW_BUFFER, &drawbuffer);'
833 print ' glGetFramebufferAttachmentParameteriv(GL_FRAMEBUFFER,'
835 print ' GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME,'
837 print ' glGetFramebufferAttachmentParameteriv(GL_FRAMEBUFFER,'
838 print ' GL_DEPTH_ATTACHMENT,'
839 print ' GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME,'
841 print ' glGetFramebufferAttachmentParameteriv(GL_FRAMEBUFFER,'
842 print ' GL_STENCIL_ATTACHMENT,'
843 print ' GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME,'
844 print ' &stencilRb);'
846 print ' GLint colorSamples, depthSamples, stencilSamples;'
847 print ' GLuint rbs[3];'
848 print ' GLint numRbs = 0;'
849 print ' GLuint fboCopy = 0;'
850 print ' glBindRenderbuffer(GL_RENDERBUFFER, colorRb);'
851 print ' glGetRenderbufferParameteriv(GL_RENDERBUFFER,'
852 print ' GL_RENDERBUFFER_SAMPLES, &colorSamples);'
853 print ' glBindRenderbuffer(GL_RENDERBUFFER, depthRb);'
854 print ' glGetRenderbufferParameteriv(GL_RENDERBUFFER,'
855 print ' GL_RENDERBUFFER_SAMPLES, &depthSamples);'
856 print ' glBindRenderbuffer(GL_RENDERBUFFER, stencilRb);'
857 print ' glGetRenderbufferParameteriv(GL_RENDERBUFFER,'
858 print ' GL_RENDERBUFFER_SAMPLES, &stencilSamples);'
859 print ' glBindRenderbuffer(GL_RENDERBUFFER, boundRb);'
861 print ' if (colorSamples || depthSamples || stencilSamples) {'
862 print ' //glReadPixels doesnt support multisampled buffers so we need'
863 print ' // to blit the fbo to a temporary one'
864 print ' fboCopy = downsampledFramebuffer(boundDrawFbo, drawbuffer,'
865 print ' colorRb, depthRb, stencilRb,'
866 print ' rbs, &numRbs);'
868 print ' glDrawBuffer(drawbuffer);'
869 print ' glReadBuffer(drawbuffer);'
871 print ' writeDrawBuffers(json, depthRb, stencilRb);'
873 print ' if (fboCopy) {'
874 print ' glBindFramebuffer(GL_FRAMEBUFFER, boundDrawFbo);'
875 print ' glBindFramebuffer(GL_READ_FRAMEBUFFER, boundReadFbo);'
876 print ' glBindFramebuffer(GL_DRAW_FRAMEBUFFER, boundDrawFbo);'
877 print ' glBindRenderbuffer(GL_RENDERBUFFER_BINDING, boundRb);'
878 print ' glDeleteRenderbuffers(numRbs, rbs);'
879 print ' glDeleteFramebuffers(1, &fboCopy);'
883 print ' json.endObject();'
884 print ' json.endMember(); // framebuffer'
887 def dump_atoms(self, getter, *args):
888 for function, type, count, name in parameters:
889 inflection = getter.inflector.radical + getter.suffix
890 if inflection not in function.split(','):
894 print ' // %s' % name
896 type, value = getter(*(args + (name,)))
897 print ' if (glGetError() != GL_NO_ERROR) {'
898 #print ' std::cerr << "warning: %s(%s) failed\\n";' % (inflection, name)
900 print ' json.beginMember("%s");' % name
901 JsonWriter().visit(type, value)
902 print ' json.endMember();'
908 if __name__ == '__main__':