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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include <windows.h> | 5 #include <windows.h> |
| 6 #include <psapi.h> | 6 #include <psapi.h> |
| 7 | 7 |
| 8 #include "base/debug/trace_event.h" | 8 #include "base/debug/trace_event.h" |
| 9 #include "skia/ext/bitmap_platform_device_win.h" | 9 #include "skia/ext/bitmap_platform_device_win.h" |
| 10 #include "skia/ext/platform_canvas.h" | 10 #include "skia/ext/platform_canvas.h" |
| 11 | 11 |
| 12 namespace skia { | 12 namespace skia { |
| 13 | 13 |
| 14 // Disable optimizations during crash analysis. | |
| 15 #pragma optimize("", off) | |
| 16 | |
| 17 // Crash On Failure. |address| should be a number less than 4000. | |
| 18 #define COF(address, condition) if (!(condition)) *((int*) address) = 0 | |
| 19 | |
| 20 // This is called when a bitmap allocation fails, and this function tries to | |
| 21 // determine why it might have failed, and crash on different | |
| 22 // lines. This allows us to see in crash dumps the most likely reason for the | |
| 23 // failure. It takes the size of the bitmap we were trying to allocate as its | |
| 24 // arguments so we can check that as well. | |
| 25 // | |
| 26 // Note that in a sandboxed renderer this function crashes when trying to | |
| 27 // call GetProcessMemoryInfo() because it tries to load psapi.dll, which | |
| 28 // is fine but gives you a very hard to read crash dump. | |
| 29 void CrashForBitmapAllocationFailure(int w, int h, unsigned int error) { | |
| 30 // Store the extended error info in a place easy to find at debug time. | |
| 31 unsigned int diag_error = 0; | |
| 32 // If the bitmap is ginormous, then we probably can't allocate it. | |
| 33 // We use 32M pixels = 128MB @ 4 bytes per pixel. | |
| 34 const LONG_PTR kGinormousBitmapPxl = 32000000; | |
| 35 COF(1, LONG_PTR(w) * LONG_PTR(h) < kGinormousBitmapPxl); | |
| 36 | |
| 37 // The maximum number of GDI objects per process is 10K. If we're very close | |
| 38 // to that, it's probably the problem. | |
| 39 const unsigned int kLotsOfGDIObjects = 9990; | |
| 40 unsigned int num_gdi_objects = GetGuiResources(GetCurrentProcess(), | |
| 41 GR_GDIOBJECTS); | |
| 42 if (num_gdi_objects == 0) { | |
| 43 diag_error = GetLastError(); | |
| 44 COF(2, false); | |
| 45 } | |
| 46 COF(3, num_gdi_objects < kLotsOfGDIObjects); | |
| 47 | |
| 48 // If we're using a crazy amount of virtual address space, then maybe there | |
| 49 // isn't enough for our bitmap. | |
| 50 const SIZE_T kLotsOfMem = 1500000000; // 1.5GB. | |
| 51 PROCESS_MEMORY_COUNTERS_EX pmc; | |
| 52 pmc.cb = sizeof(pmc); | |
| 53 if (!GetProcessMemoryInfo(GetCurrentProcess(), | |
| 54 reinterpret_cast<PROCESS_MEMORY_COUNTERS*>(&pmc), | |
| 55 sizeof(pmc))) { | |
| 56 diag_error = GetLastError(); | |
| 57 COF(4, false); | |
| 58 } | |
| 59 COF(5, pmc.PagefileUsage < kLotsOfMem); | |
| 60 COF(6, pmc.PrivateUsage < kLotsOfMem); | |
| 61 // Ok but we are somehow out of memory? | |
| 62 COF(7, error != ERROR_NOT_ENOUGH_MEMORY); | |
| 63 } | |
| 64 | |
| 65 // Crashes the process. This is called when a bitmap allocation fails but | |
| 66 // unlike its cousin CrashForBitmapAllocationFailure() it tries to detect if | |
| 67 // the issue was a non-valid shared bitmap handle. | |
| 68 void CrashIfInvalidSection(HANDLE shared_section) { | |
| 69 DWORD handle_info = 0; | |
| 70 COF(8, ::GetHandleInformation(shared_section, &handle_info) == TRUE); | |
| 71 } | |
| 72 | |
| 73 // Restore the optimization options. | |
| 74 #pragma optimize("", on) | |
| 75 | |
| 76 PlatformCanvas::PlatformCanvas(int width, int height, bool is_opaque) { | 14 PlatformCanvas::PlatformCanvas(int width, int height, bool is_opaque) { |
| 77 TRACE_EVENT2("skia", "PlatformCanvas::PlatformCanvas", | 15 TRACE_EVENT2("skia", "PlatformCanvas::PlatformCanvas", |
| 78 "width", width, "height", height); | 16 "width", width, "height", height); |
| 79 initialize(width, height, is_opaque, NULL); | 17 initialize(width, height, is_opaque, NULL); |
| 80 } | 18 } |
| 81 | 19 |
| 82 PlatformCanvas::PlatformCanvas(int width, | 20 PlatformCanvas::PlatformCanvas(int width, |
| 83 int height, | 21 int height, |
| 84 bool is_opaque, | 22 bool is_opaque, |
| 85 HANDLE shared_section) { | 23 HANDLE shared_section) { |
| 86 TRACE_EVENT2("skia", "PlatformCanvas::PlatformCanvas", | 24 TRACE_EVENT2("skia", "PlatformCanvas::PlatformCanvas", |
| 87 "width", width, "height", height); | 25 "width", width, "height", height); |
| 88 initialize(width, height, is_opaque, shared_section); | 26 initialize(width, height, is_opaque, shared_section); |
| 89 } | 27 } |
| 90 | 28 |
| 91 PlatformCanvas::~PlatformCanvas() { | 29 PlatformCanvas::~PlatformCanvas() { |
| 92 } | 30 } |
| 93 | 31 |
| 94 bool PlatformCanvas::initialize(int width, | 32 bool PlatformCanvas::initialize(int width, |
| 95 int height, | 33 int height, |
| 96 bool is_opaque, | 34 bool is_opaque, |
| 97 HANDLE shared_section) { | 35 HANDLE shared_section) { |
| 98 if (initializeWithDevice(BitmapPlatformDevice::Create(width, | 36 return initializeWithDevice(BitmapPlatformDevice::Create( |
| 99 height, | 37 width, height, is_opaque, shared_section)); |
| 100 is_opaque, | |
| 101 shared_section))) | |
| 102 return true; | |
| 103 // Investigate we failed. If we know the reason, crash in a specific place. | |
| 104 unsigned int error = GetLastError(); | |
| 105 if (shared_section) | |
| 106 CrashIfInvalidSection(shared_section); | |
| 107 CrashForBitmapAllocationFailure(width, height, error); | |
| 108 return false; | |
| 109 } | 38 } |
| 110 | 39 |
| 111 } // namespace skia | 40 } // namespace skia |
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