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1 /* | 1 /* |
2 * Copyright 2016 Google Inc. | 2 * Copyright 2016 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #include "UrlHandler.h" | 8 #include "UrlHandler.h" |
9 | 9 |
10 #include "microhttpd.h" | 10 #include "microhttpd.h" |
11 #include "../Request.h" | 11 #include "../Request.h" |
12 #include "../Response.h" | 12 #include "../Response.h" |
13 | 13 |
14 using namespace Response; | 14 using namespace Response; |
15 | 15 |
16 bool BreakHandler::canHandle(const char* method, const char* url) { | 16 bool BreakHandler::canHandle(const char* method, const char* url) { |
17 static const char* kBasePath = "/break"; | 17 static const char* kBasePath = "/break"; |
18 return 0 == strcmp(method, MHD_HTTP_METHOD_GET) && | 18 return 0 == strcmp(method, MHD_HTTP_METHOD_GET) && |
19 0 == strncmp(url, kBasePath, strlen(kBasePath)); | 19 0 == strncmp(url, kBasePath, strlen(kBasePath)); |
20 } | 20 } |
21 | 21 |
22 SkColor BreakHandler::GetPixel(Request* request, int x, int y) { | |
23 SkCanvas* canvas = request->getCanvas(); | |
24 canvas->flush(); | |
25 SkAutoTDelete<SkBitmap> bitmap(request->getBitmapFromCanvas(canvas)); | |
26 SkASSERT(bitmap); | |
27 bitmap->lockPixels(); | |
28 uint8_t* start = ((uint8_t*) bitmap->getPixels()) + (y * Request::kImageWidt
h + x) * 4; | |
29 SkColor result = SkColorSetARGB(start[3], start[0], start[1], start[2]); | |
30 bitmap->unlockPixels(); | |
31 return result; | |
32 } | |
33 | |
34 | |
35 int BreakHandler::handle(Request* request, MHD_Connection* connection, | 22 int BreakHandler::handle(Request* request, MHD_Connection* connection, |
36 const char* url, const char* method, | 23 const char* url, const char* method, |
37 const char* upload_data, size_t* upload_data_size) { | 24 const char* upload_data, size_t* upload_data_size) { |
38 SkTArray<SkString> commands; | 25 SkTArray<SkString> commands; |
39 SkStrSplit(url, "/", &commands); | 26 SkStrSplit(url, "/", &commands); |
40 | 27 |
41 if (!request->hasPicture() || commands.count() != 4) { | 28 if (!request->hasPicture() || commands.count() != 4) { |
42 return MHD_NO; | 29 return MHD_NO; |
43 } | 30 } |
44 | 31 |
45 // /break/<n>/<x>/<y> | 32 // /break/<n>/<x>/<y> |
46 int n; | 33 int n; |
47 sscanf(commands[1].c_str(), "%d", &n); | 34 sscanf(commands[1].c_str(), "%d", &n); |
48 int x; | 35 int x; |
49 sscanf(commands[2].c_str(), "%d", &x); | 36 sscanf(commands[2].c_str(), "%d", &x); |
50 int y; | 37 int y; |
51 sscanf(commands[3].c_str(), "%d", &y); | 38 sscanf(commands[3].c_str(), "%d", &y); |
52 | 39 |
53 int count = request->fDebugCanvas->getSize(); | 40 int count = request->fDebugCanvas->getSize(); |
54 SkASSERT(n < count); | 41 SkASSERT(n < count); |
55 | 42 |
56 SkCanvas* canvas = request->getCanvas(); | 43 SkCanvas* canvas = request->getCanvas(); |
57 canvas->clear(SK_ColorWHITE); | 44 canvas->clear(SK_ColorWHITE); |
58 int saveCount = canvas->save(); | 45 int saveCount = canvas->save(); |
59 for (int i = 0; i <= n; ++i) { | 46 for (int i = 0; i <= n; ++i) { |
60 request->fDebugCanvas->getDrawCommandAt(i)->execute(canvas); | 47 request->fDebugCanvas->getDrawCommandAt(i)->execute(canvas); |
61 } | 48 } |
62 SkColor target = GetPixel(request, x, y); | 49 SkColor target = request->getPixel(x, y); |
63 Json::Value response(Json::objectValue); | 50 Json::Value response(Json::objectValue); |
64 Json::Value startColor(Json::arrayValue); | 51 Json::Value startColor(Json::arrayValue); |
65 startColor.append(Json::Value(SkColorGetR(target))); | 52 startColor.append(Json::Value(SkColorGetR(target))); |
66 startColor.append(Json::Value(SkColorGetG(target))); | 53 startColor.append(Json::Value(SkColorGetG(target))); |
67 startColor.append(Json::Value(SkColorGetB(target))); | 54 startColor.append(Json::Value(SkColorGetB(target))); |
68 startColor.append(Json::Value(SkColorGetA(target))); | 55 startColor.append(Json::Value(SkColorGetA(target))); |
69 response["startColor"] = startColor; | 56 response["startColor"] = startColor; |
70 response["endColor"] = startColor; | 57 response["endColor"] = startColor; |
71 response["endOp"] = Json::Value(n); | 58 response["endOp"] = Json::Value(n); |
72 for (int i = n + 1; i < n + count; ++i) { | 59 for (int i = n + 1; i < n + count; ++i) { |
73 int index = i % count; | 60 int index = i % count; |
74 if (index == 0) { | 61 if (index == 0) { |
75 // reset canvas for wraparound | 62 // reset canvas for wraparound |
76 canvas->restoreToCount(saveCount); | 63 canvas->restoreToCount(saveCount); |
77 canvas->clear(SK_ColorWHITE); | 64 canvas->clear(SK_ColorWHITE); |
78 saveCount = canvas->save(); | 65 saveCount = canvas->save(); |
79 } | 66 } |
80 request->fDebugCanvas->getDrawCommandAt(index)->execute(canvas); | 67 request->fDebugCanvas->getDrawCommandAt(index)->execute(canvas); |
81 SkColor current = GetPixel(request, x, y); | 68 SkColor current = request->getPixel(x, y); |
82 if (current != target) { | 69 if (current != target) { |
83 Json::Value endColor(Json::arrayValue); | 70 Json::Value endColor(Json::arrayValue); |
84 endColor.append(Json::Value(SkColorGetR(current))); | 71 endColor.append(Json::Value(SkColorGetR(current))); |
85 endColor.append(Json::Value(SkColorGetG(current))); | 72 endColor.append(Json::Value(SkColorGetG(current))); |
86 endColor.append(Json::Value(SkColorGetB(current))); | 73 endColor.append(Json::Value(SkColorGetB(current))); |
87 endColor.append(Json::Value(SkColorGetA(current))); | 74 endColor.append(Json::Value(SkColorGetA(current))); |
88 response["endColor"] = endColor; | 75 response["endColor"] = endColor; |
89 response["endOp"] = Json::Value(index); | 76 response["endOp"] = Json::Value(index); |
90 break; | 77 break; |
91 } | 78 } |
92 } | 79 } |
93 canvas->restoreToCount(saveCount); | 80 canvas->restoreToCount(saveCount); |
94 SkDynamicMemoryWStream stream; | 81 SkDynamicMemoryWStream stream; |
95 stream.writeText(Json::FastWriter().write(response).c_str()); | 82 stream.writeText(Json::FastWriter().write(response).c_str()); |
96 SkAutoTUnref<SkData> data(stream.copyToData()); | 83 SkAutoTUnref<SkData> data(stream.copyToData()); |
97 return SendData(connection, data, "application/json"); | 84 return SendData(connection, data, "application/json"); |
98 } | 85 } |
99 | 86 |
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