Upstream version 10.39.225.0
[platform/framework/web/crosswalk.git] / src / gpu / tools / compositor_model_bench / render_tree.cc
1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "gpu/tools/compositor_model_bench/render_tree.h"
6
7 #include <sstream>
8 #include <vector>
9
10 #include "base/files/file_path.h"
11 #include "base/files/file_util.h"
12 #include "base/json/json_reader.h"
13 #include "base/json/json_writer.h"
14 #include "base/logging.h"
15 #include "base/memory/scoped_ptr.h"
16 #include "base/values.h"
17
18 #include "gpu/tools/compositor_model_bench/shaders.h"
19
20 using base::JSONReader;
21 using base::JSONWriter;
22 using base::ReadFileToString;
23 using std::string;
24 using std::vector;
25
26 GLenum TextureFormatFromString(std::string format) {
27   if (format == "RGBA")
28     return GL_RGBA;
29   if (format == "RGB")
30     return GL_RGB;
31   if (format == "LUMINANCE")
32     return GL_LUMINANCE;
33   return GL_INVALID_ENUM;
34 }
35
36 const char* TextureFormatName(GLenum format) {
37   switch (format) {
38     case GL_RGBA:
39       return "RGBA";
40     case GL_RGB:
41       return "RGB";
42     case GL_LUMINANCE:
43       return "LUMINANCE";
44     default:
45       return "(unknown format)";
46   }
47 }
48
49 int FormatBytesPerPixel(GLenum format) {
50   switch (format) {
51     case GL_RGBA:
52       return 4;
53     case GL_RGB:
54       return 3;
55     case GL_LUMINANCE:
56       return 1;
57     default:
58       return 0;
59   }
60 }
61
62 RenderNode::RenderNode() {
63 }
64
65 RenderNode::~RenderNode() {
66 }
67
68 void RenderNode::Accept(RenderNodeVisitor* v) {
69   v->BeginVisitRenderNode(this);
70   v->EndVisitRenderNode(this);
71 }
72
73 ContentLayerNode::ContentLayerNode() {
74 }
75
76 ContentLayerNode::~ContentLayerNode() {
77 }
78
79 void ContentLayerNode::Accept(RenderNodeVisitor* v) {
80   v->BeginVisitContentLayerNode(this);
81   typedef vector<RenderNode*>::iterator node_itr;
82   for (node_itr i = children_.begin(); i != children_.end(); ++i) {
83     (*i)->Accept(v);
84   }
85   v->EndVisitContentLayerNode(this);
86 }
87
88 CCNode::CCNode() {
89 }
90
91 CCNode::~CCNode() {
92 }
93
94 void CCNode::Accept(RenderNodeVisitor* v) {
95   v->BeginVisitCCNode(this);
96   v->EndVisitCCNode(this);
97 }
98
99 RenderNodeVisitor::~RenderNodeVisitor() {
100 }
101
102 void RenderNodeVisitor::BeginVisitContentLayerNode(ContentLayerNode* v) {
103   this->BeginVisitRenderNode(v);
104 }
105
106 void RenderNodeVisitor::BeginVisitCCNode(CCNode* v) {
107   this->BeginVisitRenderNode(v);
108 }
109
110 void RenderNodeVisitor::EndVisitRenderNode(RenderNode* v) {
111 }
112
113 void RenderNodeVisitor::EndVisitContentLayerNode(ContentLayerNode* v) {
114   this->EndVisitRenderNode(v);
115 }
116
117 void RenderNodeVisitor::EndVisitCCNode(CCNode* v) {
118   this->EndVisitRenderNode(v);
119 }
120
121 RenderNode* InterpretNode(base::DictionaryValue* node);
122
123 std::string ValueTypeAsString(base::Value::Type type) {
124   switch (type) {
125     case base::Value::TYPE_NULL:
126       return "NULL";
127     case base::Value::TYPE_BOOLEAN:
128       return "BOOLEAN";
129     case base::Value::TYPE_INTEGER:
130       return "INTEGER";
131     case base::Value::TYPE_DOUBLE:
132       return "DOUBLE";
133     case base::Value::TYPE_STRING:
134       return "STRING";
135     case base::Value::TYPE_BINARY:
136       return "BINARY";
137     case base::Value::TYPE_DICTIONARY:
138       return "DICTIONARY";
139     case base::Value::TYPE_LIST:
140       return "LIST";
141     default:
142       return "(UNKNOWN TYPE)";
143   }
144 }
145
146 // Makes sure that the key exists and has the type we expect.
147 bool VerifyDictionaryEntry(base::DictionaryValue* node,
148                            const std::string& key,
149                            base::Value::Type type) {
150   if (!node->HasKey(key)) {
151     LOG(ERROR) << "Missing value for key: " << key;
152     return false;
153   }
154
155   base::Value* child;
156   node->Get(key, &child);
157   if (!child->IsType(type)) {
158     LOG(ERROR) << key << " did not have the expected type "
159       "(expected " << ValueTypeAsString(type) << ")";
160     return false;
161   }
162
163   return true;
164 }
165
166 // Makes sure that the list entry has the type we expect.
167 bool VerifyListEntry(base::ListValue* l,
168                      int idx,
169                      base::Value::Type type,
170                      const char* listName = 0) {
171   // Assume the idx is valid (since we'll be able to generate a better
172   // error message for this elsewhere.)
173   base::Value* el;
174   l->Get(idx, &el);
175   if (!el->IsType(type)) {
176     LOG(ERROR) << (listName ? listName : "List") << "element " << idx <<
177       " did not have the expected type (expected " <<
178       ValueTypeAsString(type) << ")\n";
179     return false;
180   }
181
182   return true;
183 }
184
185 bool InterpretCommonContents(base::DictionaryValue* node, RenderNode* c) {
186   if (!VerifyDictionaryEntry(node, "layerID", base::Value::TYPE_INTEGER) ||
187       !VerifyDictionaryEntry(node, "width", base::Value::TYPE_INTEGER) ||
188       !VerifyDictionaryEntry(node, "height", base::Value::TYPE_INTEGER) ||
189       !VerifyDictionaryEntry(node, "drawsContent", base::Value::TYPE_BOOLEAN) ||
190       !VerifyDictionaryEntry(node, "targetSurfaceID",
191                              base::Value::TYPE_INTEGER) ||
192       !VerifyDictionaryEntry(node, "transform", base::Value::TYPE_LIST)
193     ) {
194     return false;
195   }
196
197   int layerID;
198   node->GetInteger("layerID", &layerID);
199   c->set_layerID(layerID);
200   int width;
201   node->GetInteger("width", &width);
202   c->set_width(width);
203   int height;
204   node->GetInteger("height", &height);
205   c->set_height(height);
206   bool drawsContent;
207   node->GetBoolean("drawsContent", &drawsContent);
208   c->set_drawsContent(drawsContent);
209   int targetSurface;
210   node->GetInteger("targetSurfaceID", &targetSurface);
211   c->set_targetSurface(targetSurface);
212
213   base::ListValue* transform;
214   node->GetList("transform", &transform);
215   if (transform->GetSize() != 16) {
216     LOG(ERROR) << "4x4 transform matrix did not have 16 elements";
217     return false;
218   }
219   float transform_mat[16];
220   for (int i = 0; i < 16; ++i) {
221     if (!VerifyListEntry(transform, i, base::Value::TYPE_DOUBLE, "Transform"))
222       return false;
223     double el;
224     transform->GetDouble(i, &el);
225     transform_mat[i] = el;
226   }
227   c->set_transform(transform_mat);
228
229   if (node->HasKey("tiles")) {
230     if (!VerifyDictionaryEntry(node, "tiles", base::Value::TYPE_DICTIONARY))
231       return false;
232     base::DictionaryValue* tiles_dict;
233     node->GetDictionary("tiles", &tiles_dict);
234     if (!VerifyDictionaryEntry(tiles_dict, "dim", base::Value::TYPE_LIST))
235       return false;
236     base::ListValue* dim;
237     tiles_dict->GetList("dim", &dim);
238     if (!VerifyListEntry(dim, 0, base::Value::TYPE_INTEGER, "Tile dimension") ||
239         !VerifyListEntry(dim, 1, base::Value::TYPE_INTEGER, "Tile dimension")) {
240       return false;
241     }
242     int tile_width;
243     dim->GetInteger(0, &tile_width);
244     c->set_tile_width(tile_width);
245     int tile_height;
246     dim->GetInteger(1, &tile_height);
247     c->set_tile_height(tile_height);
248
249     if (!VerifyDictionaryEntry(tiles_dict, "info", base::Value::TYPE_LIST))
250       return false;
251     base::ListValue* tiles;
252     tiles_dict->GetList("info", &tiles);
253     for (unsigned int i = 0; i < tiles->GetSize(); ++i) {
254       if (!VerifyListEntry(tiles, i, base::Value::TYPE_DICTIONARY, "Tile info"))
255         return false;
256       base::DictionaryValue* tdict;
257       tiles->GetDictionary(i, &tdict);
258
259       if (!VerifyDictionaryEntry(tdict, "x", base::Value::TYPE_INTEGER) ||
260           !VerifyDictionaryEntry(tdict, "y", base::Value::TYPE_INTEGER)) {
261         return false;
262       }
263       Tile t;
264       tdict->GetInteger("x", &t.x);
265       tdict->GetInteger("y", &t.y);
266       if (tdict->HasKey("texID")) {
267         if (!VerifyDictionaryEntry(tdict, "texID", base::Value::TYPE_INTEGER))
268           return false;
269         tdict->GetInteger("texID", &t.texID);
270       } else {
271         t.texID = -1;
272       }
273       c->add_tile(t);
274     }
275   }
276   return true;
277 }
278
279 bool InterpretCCData(base::DictionaryValue* node, CCNode* c) {
280   if (!VerifyDictionaryEntry(node, "vertex_shader", base::Value::TYPE_STRING) ||
281       !VerifyDictionaryEntry(node, "fragment_shader",
282                              base::Value::TYPE_STRING) ||
283       !VerifyDictionaryEntry(node, "textures", base::Value::TYPE_LIST)) {
284     return false;
285   }
286   string vertex_shader_name, fragment_shader_name;
287   node->GetString("vertex_shader", &vertex_shader_name);
288   node->GetString("fragment_shader", &fragment_shader_name);
289
290   c->set_vertex_shader(ShaderIDFromString(vertex_shader_name));
291   c->set_fragment_shader(ShaderIDFromString(fragment_shader_name));
292   base::ListValue* textures;
293   node->GetList("textures", &textures);
294   for (unsigned int i = 0; i < textures->GetSize(); ++i) {
295     if (!VerifyListEntry(textures, i, base::Value::TYPE_DICTIONARY, "Tex list"))
296       return false;
297     base::DictionaryValue* tex;
298     textures->GetDictionary(i, &tex);
299
300     if (!VerifyDictionaryEntry(tex, "texID", base::Value::TYPE_INTEGER) ||
301         !VerifyDictionaryEntry(tex, "height", base::Value::TYPE_INTEGER) ||
302         !VerifyDictionaryEntry(tex, "width", base::Value::TYPE_INTEGER) ||
303         !VerifyDictionaryEntry(tex, "format", base::Value::TYPE_STRING)) {
304       return false;
305     }
306     Texture t;
307     tex->GetInteger("texID", &t.texID);
308     tex->GetInteger("height", &t.height);
309     tex->GetInteger("width", &t.width);
310
311     string formatName;
312     tex->GetString("format", &formatName);
313     t.format = TextureFormatFromString(formatName);
314     if (t.format == GL_INVALID_ENUM) {
315       LOG(ERROR) << "Unrecognized texture format in layer " << c->layerID() <<
316         " (format: " << formatName << ")\n"
317         "The layer had " << textures->GetSize() << " children.";
318       return false;
319     }
320
321     c->add_texture(t);
322   }
323
324   if (c->vertex_shader() == SHADER_UNRECOGNIZED) {
325     LOG(ERROR) << "Unrecognized vertex shader name, layer " << c->layerID() <<
326       " (shader: " << vertex_shader_name << ")";
327     return false;
328   }
329
330   if (c->fragment_shader() == SHADER_UNRECOGNIZED) {
331     LOG(ERROR) << "Unrecognized fragment shader name, layer " << c->layerID() <<
332       " (shader: " << fragment_shader_name << ")";
333     return false;
334   }
335
336   return true;
337 }
338
339 RenderNode* InterpretContentLayer(base::DictionaryValue* node) {
340   ContentLayerNode* n = new ContentLayerNode;
341   if (!InterpretCommonContents(node, n))
342     return NULL;
343
344   if (!VerifyDictionaryEntry(node, "type", base::Value::TYPE_STRING) ||
345       !VerifyDictionaryEntry(node, "skipsDraw", base::Value::TYPE_BOOLEAN) ||
346       !VerifyDictionaryEntry(node, "children", base::Value::TYPE_LIST)) {
347     return NULL;
348   }
349
350   string type;
351   node->GetString("type", &type);
352   DCHECK_EQ(type, "ContentLayer");
353   bool skipsDraw;
354   node->GetBoolean("skipsDraw", &skipsDraw);
355   n->set_skipsDraw(skipsDraw);
356
357   base::ListValue* children;
358   node->GetList("children", &children);
359   for (unsigned int i = 0; i < children->GetSize(); ++i) {
360     base::DictionaryValue* childNode;
361     children->GetDictionary(i, &childNode);
362     RenderNode* child = InterpretNode(childNode);
363     if (child)
364       n->add_child(child);
365   }
366
367   return n;
368 }
369
370 RenderNode* InterpretCanvasLayer(base::DictionaryValue* node) {
371   CCNode* n = new CCNode;
372   if (!InterpretCommonContents(node, n))
373     return NULL;
374
375   if (!VerifyDictionaryEntry(node, "type", base::Value::TYPE_STRING)) {
376     return NULL;
377   }
378
379   string type;
380   node->GetString("type", &type);
381   assert(type == "CanvasLayer");
382
383   if (!InterpretCCData(node, n))
384     return NULL;
385
386   return n;
387 }
388
389 RenderNode* InterpretVideoLayer(base::DictionaryValue* node) {
390   CCNode* n = new CCNode;
391   if (!InterpretCommonContents(node, n))
392     return NULL;
393
394   if (!VerifyDictionaryEntry(node, "type", base::Value::TYPE_STRING)) {
395     return NULL;
396   }
397
398   string type;
399   node->GetString("type", &type);
400   assert(type == "VideoLayer");
401
402   if (!InterpretCCData(node, n))
403     return NULL;
404
405   return n;
406 }
407
408 RenderNode* InterpretImageLayer(base::DictionaryValue* node) {
409   CCNode* n = new CCNode;
410   if (!InterpretCommonContents(node, n))
411     return NULL;
412
413   if (!VerifyDictionaryEntry(node, "type", base::Value::TYPE_STRING)) {
414     return NULL;
415   }
416
417   string type;
418   node->GetString("type", &type);
419   assert(type == "ImageLayer");
420
421   if (!InterpretCCData(node, n))
422     return NULL;
423
424   return n;
425 }
426
427 RenderNode* InterpretNode(base::DictionaryValue* node) {
428   if (!VerifyDictionaryEntry(node, "type", base::Value::TYPE_STRING)) {
429     return NULL;
430   }
431
432   string type;
433   node->GetString("type", &type);
434   if (type == "ContentLayer")
435     return InterpretContentLayer(node);
436   if (type == "CanvasLayer")
437     return InterpretCanvasLayer(node);
438   if (type == "VideoLayer")
439     return InterpretVideoLayer(node);
440   if (type == "ImageLayer")
441     return InterpretImageLayer(node);
442
443
444   string outjson;
445   JSONWriter::WriteWithOptions(node, base::JSONWriter::OPTIONS_PRETTY_PRINT,
446                                &outjson);
447   LOG(ERROR) << "Unrecognized node type! JSON:\n\n"
448       "-----------------------\n" <<
449       outjson <<
450       "-----------------------";
451
452   return NULL;
453 }
454
455 RenderNode* BuildRenderTreeFromFile(const base::FilePath& path) {
456   LOG(INFO) << "Reading " << path.LossyDisplayName();
457   string contents;
458   if (!ReadFileToString(path, &contents))
459     return NULL;
460
461   scoped_ptr<base::Value> root;
462   int error_code = 0;
463   string error_message;
464   root.reset(JSONReader::ReadAndReturnError(contents,
465             base::JSON_ALLOW_TRAILING_COMMAS,
466             &error_code,
467             &error_message));
468   if (!root.get()) {
469     LOG(ERROR) << "Failed to parse JSON file " << path.LossyDisplayName() <<
470         "\n(" << error_message << ")";
471     return NULL;
472   }
473
474   if (root->IsType(base::Value::TYPE_DICTIONARY)) {
475     base::DictionaryValue* v = static_cast<base::DictionaryValue*>(root.get());
476     RenderNode* tree = InterpretContentLayer(v);
477     return tree;
478   } else {
479     LOG(ERROR) << path.LossyDisplayName() <<
480         " doesn not encode a JSON dictionary.";
481     return NULL;
482   }
483 }
484