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| 1 // Copyright 2015 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/ipc/service/child_window_surface_win.h" | |
| 6 | |
| 7 #include <memory> | |
| 8 | |
| 9 #include "base/compiler_specific.h" | |
| 10 #include "base/memory/ptr_util.h" | |
| 11 #include "gpu/ipc/common/gpu_messages.h" | |
| 12 #include "gpu/ipc/service/gpu_channel_manager.h" | |
| 13 #include "gpu/ipc/service/gpu_channel_manager_delegate.h" | |
| 14 #include "ui/display/display_switches.h" | |
| 15 #include "ui/gfx/native_widget_types.h" | |
| 16 #include "ui/gl/egl_util.h" | |
| 17 #include "ui/gl/gl_context.h" | |
| 18 #include "ui/gl/gl_surface_egl.h" | |
| 19 #include "ui/gl/scoped_make_current.h" | |
| 20 | |
| 21 namespace gpu { | |
| 22 | |
| 23 ChildWindowSurfaceWin::ChildWindowSurfaceWin( | |
| 24 std::unique_ptr<gfx::VSyncProvider> vsync_provider, | |
| 25 base::WeakPtr<ImageTransportSurfaceDelegate> delegate, | |
| 26 HWND parent_window) | |
| 27 : gl::NativeViewGLSurfaceEGL(0, std::move(vsync_provider)), | |
| 28 child_window_(delegate, parent_window), | |
| 29 alpha_(true), | |
| 30 first_swap_(true) { | |
| 31 // Don't use EGL_ANGLE_window_fixed_size so that we can avoid recreating the | |
| 32 // window surface, which can cause flicker on DirectComposition. | |
| 33 enable_fixed_size_angle_ = false; | |
| 34 } | |
| 35 | |
| 36 EGLConfig ChildWindowSurfaceWin::GetConfig() { | |
| 37 if (!config_) { | |
| 38 int alpha_size = alpha_ ? 8 : EGL_DONT_CARE; | |
| 39 int bits_per_channel = | |
| 40 base::CommandLine::ForCurrentProcess()->HasSwitch(switches::kEnableHDR) | |
| 41 ? 16 | |
| 42 : 8; | |
| 43 | |
| 44 EGLint config_attribs[] = {EGL_ALPHA_SIZE, | |
| 45 alpha_size, | |
| 46 EGL_BLUE_SIZE, | |
| 47 bits_per_channel, | |
| 48 EGL_GREEN_SIZE, | |
| 49 bits_per_channel, | |
| 50 EGL_RED_SIZE, | |
| 51 bits_per_channel, | |
| 52 EGL_RENDERABLE_TYPE, | |
| 53 EGL_OPENGL_ES2_BIT, | |
| 54 EGL_SURFACE_TYPE, | |
| 55 EGL_WINDOW_BIT | EGL_PBUFFER_BIT, | |
| 56 EGL_NONE}; | |
| 57 | |
| 58 EGLDisplay display = GetHardwareDisplay(); | |
| 59 EGLint num_configs; | |
| 60 if (!eglChooseConfig(display, config_attribs, NULL, 0, &num_configs)) { | |
| 61 LOG(ERROR) << "eglChooseConfig failed with error " | |
| 62 << ui::GetLastEGLErrorString(); | |
| 63 return NULL; | |
| 64 } | |
| 65 std::vector<EGLConfig> configs(num_configs); | |
| 66 if (!eglChooseConfig(display, config_attribs, configs.data(), num_configs, | |
| 67 &num_configs)) { | |
| 68 LOG(ERROR) << "eglChooseConfig failed with error " | |
| 69 << ui::GetLastEGLErrorString(); | |
| 70 return NULL; | |
| 71 } | |
| 72 config_ = configs[0]; | |
| 73 for (int i = 0; i < num_configs; i++) { | |
| 74 EGLint red_bits; | |
| 75 eglGetConfigAttrib(display, configs[i], EGL_RED_SIZE, &red_bits); | |
| 76 // Try to pick a configuration with the right number of bits rather | |
| 77 // than one that just has enough bits. | |
| 78 if (red_bits == bits_per_channel) { | |
| 79 config_ = configs[i]; | |
| 80 break; | |
| 81 } | |
| 82 } | |
| 83 } | |
| 84 | |
| 85 return config_; | |
| 86 } | |
| 87 | |
| 88 bool ChildWindowSurfaceWin::InitializeNativeWindow() { | |
| 89 if (window_) | |
| 90 return true; | |
| 91 | |
| 92 bool result = child_window_.Initialize(); | |
| 93 window_ = child_window_.window(); | |
| 94 return result; | |
| 95 } | |
| 96 | |
| 97 bool ChildWindowSurfaceWin::Resize(const gfx::Size& size, | |
| 98 float scale_factor, | |
| 99 bool has_alpha) { | |
| 100 if (!SupportsPostSubBuffer()) { | |
| 101 if (!MoveWindow(window_, 0, 0, size.width(), size.height(), FALSE)) { | |
| 102 return false; | |
| 103 } | |
| 104 alpha_ = has_alpha; | |
| 105 return gl::NativeViewGLSurfaceEGL::Resize(size, scale_factor, has_alpha); | |
| 106 } else { | |
| 107 if (size == GetSize() && has_alpha == alpha_) | |
| 108 return true; | |
| 109 | |
| 110 // Force a resize and redraw (but not a move, activate, etc.). | |
| 111 if (!SetWindowPos(window_, nullptr, 0, 0, size.width(), size.height(), | |
| 112 SWP_NOMOVE | SWP_NOACTIVATE | SWP_NOCOPYBITS | | |
| 113 SWP_NOOWNERZORDER | SWP_NOZORDER)) { | |
| 114 return false; | |
| 115 } | |
| 116 size_ = size; | |
| 117 if (has_alpha == alpha_) { | |
| 118 // A 0-size PostSubBuffer doesn't swap but forces the swap chain to resize | |
| 119 // to match the window. | |
| 120 PostSubBuffer(0, 0, 0, 0); | |
| 121 } else { | |
| 122 alpha_ = has_alpha; | |
| 123 config_ = nullptr; | |
| 124 | |
| 125 std::unique_ptr<ui::ScopedMakeCurrent> scoped_make_current; | |
| 126 gl::GLContext* current_context = gl::GLContext::GetCurrent(); | |
| 127 bool was_current = current_context && current_context->IsCurrent(this); | |
| 128 if (was_current) { | |
| 129 scoped_make_current.reset( | |
| 130 new ui::ScopedMakeCurrent(current_context, this)); | |
| 131 current_context->ReleaseCurrent(this); | |
| 132 } | |
| 133 | |
| 134 Destroy(); | |
| 135 | |
| 136 if (!Initialize()) { | |
| 137 LOG(ERROR) << "Failed to resize window."; | |
| 138 return false; | |
| 139 } | |
| 140 } | |
| 141 return true; | |
| 142 } | |
| 143 } | |
| 144 | |
| 145 gfx::SwapResult ChildWindowSurfaceWin::SwapBuffers() { | |
| 146 gfx::SwapResult result = NativeViewGLSurfaceEGL::SwapBuffers(); | |
| 147 // Force the driver to finish drawing before clearing the contents to | |
| 148 // transparent, to reduce or eliminate the period of time where the contents | |
| 149 // have flashed black. | |
| 150 if (first_swap_) { | |
| 151 glFinish(); | |
| 152 first_swap_ = false; | |
| 153 } | |
| 154 child_window_.ClearInvalidContents(); | |
| 155 return result; | |
| 156 } | |
| 157 | |
| 158 gfx::SwapResult ChildWindowSurfaceWin::PostSubBuffer(int x, | |
| 159 int y, | |
| 160 int width, | |
| 161 int height) { | |
| 162 gfx::SwapResult result = | |
| 163 NativeViewGLSurfaceEGL::PostSubBuffer(x, y, width, height); | |
| 164 child_window_.ClearInvalidContents(); | |
| 165 return result; | |
| 166 } | |
| 167 | |
| 168 void ChildWindowSurfaceWin::WaitForSnapshotRendering() { | |
| 169 DCHECK(gl::GLContext::GetCurrent()->IsCurrent(this)); | |
| 170 glFinish(); | |
| 171 } | |
| 172 | |
| 173 ChildWindowSurfaceWin::~ChildWindowSurfaceWin() { | |
| 174 } | |
| 175 | |
| 176 } // namespace gpu | |
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Chromium Code Reviews
Issue 2933453002:
Always use DirectCompositionSurfaceWin when using DirectComposition (Closed)
