gfx/skia/trunk/src/gpu/gl/win/SkNativeGLContext_win.cpp@6474c204b198 (annotated)
gfx/skia/trunk/src/gpu/gl/win/SkNativeGLContext_win.cpp
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | |
| michael@0 | 2 | /* |
| michael@0 | 3 | * Copyright 2011 Google Inc. |
| michael@0 | 4 | * |
| michael@0 | 5 | * Use of this source code is governed by a BSD-style license that can be |
| michael@0 | 6 | * found in the LICENSE file. |
| michael@0 | 7 | */ |
| michael@0 | 8 | |
| michael@0 | 9 | #include "gl/SkNativeGLContext.h" |
| michael@0 | 10 | #include "SkWGL.h" |
| michael@0 | 11 | |
| michael@0 | 12 | #define WIN32_LEAN_AND_MEAN |
| michael@0 | 13 | #include <windows.h> |
| michael@0 | 14 | |
| michael@0 | 15 | SkNativeGLContext::AutoContextRestore::AutoContextRestore() { |
| michael@0 | 16 | fOldHGLRC = wglGetCurrentContext(); |
| michael@0 | 17 | fOldHDC = wglGetCurrentDC(); |
| michael@0 | 18 | } |
| michael@0 | 19 | |
| michael@0 | 20 | SkNativeGLContext::AutoContextRestore::~AutoContextRestore() { |
| michael@0 | 21 | wglMakeCurrent(fOldHDC, fOldHGLRC); |
| michael@0 | 22 | } |
| michael@0 | 23 | |
| michael@0 | 24 | /////////////////////////////////////////////////////////////////////////////// |
| michael@0 | 25 | |
| michael@0 | 26 | ATOM SkNativeGLContext::gWC = 0; |
| michael@0 | 27 | |
| michael@0 | 28 | SkNativeGLContext::SkNativeGLContext() |
| michael@0 | 29 | : fWindow(NULL) |
| michael@0 | 30 | , fDeviceContext(NULL) |
| michael@0 | 31 | , fGlRenderContext(0) { |
| michael@0 | 32 | } |
| michael@0 | 33 | |
| michael@0 | 34 | SkNativeGLContext::~SkNativeGLContext() { |
| michael@0 | 35 | this->destroyGLContext(); |
| michael@0 | 36 | } |
| michael@0 | 37 | |
| michael@0 | 38 | void SkNativeGLContext::destroyGLContext() { |
| michael@0 | 39 | if (fGlRenderContext) { |
| michael@0 | 40 | wglDeleteContext(fGlRenderContext); |
| michael@0 | 41 | } |
| michael@0 | 42 | if (fWindow && fDeviceContext) { |
| michael@0 | 43 | ReleaseDC(fWindow, fDeviceContext); |
| michael@0 | 44 | } |
| michael@0 | 45 | if (fWindow) { |
| michael@0 | 46 | DestroyWindow(fWindow); |
| michael@0 | 47 | } |
| michael@0 | 48 | } |
| michael@0 | 49 | |
| michael@0 | 50 | const GrGLInterface* SkNativeGLContext::createGLContext() { |
| michael@0 | 51 | HINSTANCE hInstance = (HINSTANCE)GetModuleHandle(NULL); |
| michael@0 | 52 | |
| michael@0 | 53 | if (!gWC) { |
| michael@0 | 54 | WNDCLASS wc; |
| michael@0 | 55 | wc.cbClsExtra = 0; |
| michael@0 | 56 | wc.cbWndExtra = 0; |
| michael@0 | 57 | wc.hbrBackground = NULL; |
| michael@0 | 58 | wc.hCursor = LoadCursor(NULL, IDC_ARROW); |
| michael@0 | 59 | wc.hIcon = LoadIcon(NULL, IDI_APPLICATION); |
| michael@0 | 60 | wc.hInstance = hInstance; |
| michael@0 | 61 | wc.lpfnWndProc = (WNDPROC) DefWindowProc; |
| michael@0 | 62 | wc.lpszClassName = TEXT("Griffin"); |
| michael@0 | 63 | wc.lpszMenuName = NULL; |
| michael@0 | 64 | wc.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC; |
| michael@0 | 65 | |
| michael@0 | 66 | gWC = RegisterClass(&wc); |
| michael@0 | 67 | if (!gWC) { |
| michael@0 | 68 | SkDebugf("Could not register window class.\n"); |
| michael@0 | 69 | return NULL; |
| michael@0 | 70 | } |
| michael@0 | 71 | } |
| michael@0 | 72 | |
| michael@0 | 73 | if (!(fWindow = CreateWindow(TEXT("Griffin"), |
| michael@0 | 74 | TEXT("The Invisible Man"), |
| michael@0 | 75 | WS_OVERLAPPEDWINDOW, |
| michael@0 | 76 | 0, 0, 1, 1, |
| michael@0 | 77 | NULL, NULL, |
| michael@0 | 78 | hInstance, NULL))) { |
| michael@0 | 79 | SkDebugf("Could not create window.\n"); |
| michael@0 | 80 | return NULL; |
| michael@0 | 81 | } |
| michael@0 | 82 | |
| michael@0 | 83 | if (!(fDeviceContext = GetDC(fWindow))) { |
| michael@0 | 84 | SkDebugf("Could not get device context.\n"); |
| michael@0 | 85 | this->destroyGLContext(); |
| michael@0 | 86 | return NULL; |
| michael@0 | 87 | } |
| michael@0 | 88 | |
| michael@0 | 89 | // Requesting a Core profile would bar us from using NVPR. So we pass false. |
| michael@0 | 90 | if (!(fGlRenderContext = SkCreateWGLContext(fDeviceContext, 0, false))) { |
| michael@0 | 91 | SkDebugf("Could not create rendering context.\n"); |
| michael@0 | 92 | this->destroyGLContext(); |
| michael@0 | 93 | return NULL; |
| michael@0 | 94 | } |
| michael@0 | 95 | |
| michael@0 | 96 | if (!(wglMakeCurrent(fDeviceContext, fGlRenderContext))) { |
| michael@0 | 97 | SkDebugf("Could not set the context.\n"); |
| michael@0 | 98 | this->destroyGLContext(); |
| michael@0 | 99 | return NULL; |
| michael@0 | 100 | } |
| michael@0 | 101 | const GrGLInterface* interface = GrGLCreateNativeInterface(); |
| michael@0 | 102 | if (NULL == interface) { |
| michael@0 | 103 | SkDebugf("Could not create GL interface.\n"); |
| michael@0 | 104 | this->destroyGLContext(); |
| michael@0 | 105 | return NULL; |
| michael@0 | 106 | } |
| michael@0 | 107 | |
| michael@0 | 108 | return interface; |
| michael@0 | 109 | } |
| michael@0 | 110 | |
| michael@0 | 111 | void SkNativeGLContext::makeCurrent() const { |
| michael@0 | 112 | if (!wglMakeCurrent(fDeviceContext, fGlRenderContext)) { |
| michael@0 | 113 | SkDebugf("Could not create rendering context.\n"); |
| michael@0 | 114 | } |
| michael@0 | 115 | } |
| michael@0 | 116 | |
| michael@0 | 117 | void SkNativeGLContext::swapBuffers() const { |
| michael@0 | 118 | if (!SwapBuffers(fDeviceContext)) { |
| michael@0 | 119 | SkDebugf("Could not complete SwapBuffers.\n"); |
| michael@0 | 120 | } |
| michael@0 | 121 | } |
