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1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2013 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 "content/renderer/gpu/render_widget_compositor.h" | 5 #include "content/renderer/gpu/render_widget_compositor.h" |
6 | 6 |
7 #include <limits> | 7 #include <limits> |
8 #include <string> | 8 #include <string> |
9 | 9 |
10 #include "base/command_line.h" | 10 #include "base/command_line.h" |
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398 settings.scrollbar_fade_duration_ms = 300; | 398 settings.scrollbar_fade_duration_ms = 300; |
399 settings.solid_color_scrollbar_color = SkColorSetARGB(128, 128, 128, 128); | 399 settings.solid_color_scrollbar_color = SkColorSetARGB(128, 128, 128, 128); |
400 } | 400 } |
401 settings.renderer_settings.highp_threshold_min = 2048; | 401 settings.renderer_settings.highp_threshold_min = 2048; |
402 // Android WebView handles root layer flings itself. | 402 // Android WebView handles root layer flings itself. |
403 settings.ignore_root_layer_flings = using_synchronous_compositor; | 403 settings.ignore_root_layer_flings = using_synchronous_compositor; |
404 // Memory policy on Android WebView does not depend on whether device is | 404 // Memory policy on Android WebView does not depend on whether device is |
405 // low end, so always use default policy. | 405 // low end, so always use default policy. |
406 bool use_low_memory_policy = | 406 bool use_low_memory_policy = |
407 base::SysInfo::IsLowEndDevice() && !using_synchronous_compositor; | 407 base::SysInfo::IsLowEndDevice() && !using_synchronous_compositor; |
408 // RGBA_4444 textures are only enabled by default for low end devices | |
409 // and are disabled for Android WebView as it doesn't support the format. | |
410 settings.renderer_settings.use_rgba_4444_textures = use_low_memory_policy; | |
411 if (use_low_memory_policy) { | 408 if (use_low_memory_policy) { |
412 // On low-end we want to be very carefull about killing other | 409 // On low-end we want to be very carefull about killing other |
413 // apps. So initially we use 50% more memory to avoid flickering | 410 // apps. So initially we use 50% more memory to avoid flickering |
414 // or raster-on-demand. | 411 // or raster-on-demand. |
415 settings.max_memory_for_prepaint_percentage = 67; | 412 settings.max_memory_for_prepaint_percentage = 67; |
| 413 |
| 414 // RGBA_4444 textures are only enabled by default for low end devices |
| 415 // and are disabled for Android WebView as it doesn't support the format. |
| 416 if (!cmd->HasSwitch(switches::kDisableRGBA4444Textures)) |
| 417 settings.renderer_settings.preferred_tile_format = cc::RGBA_4444; |
416 } else { | 418 } else { |
417 // On other devices we have increased memory excessively to avoid | 419 // On other devices we have increased memory excessively to avoid |
418 // raster-on-demand already, so now we reserve 50% _only_ to avoid | 420 // raster-on-demand already, so now we reserve 50% _only_ to avoid |
419 // raster-on-demand, and use 50% of the memory otherwise. | 421 // raster-on-demand, and use 50% of the memory otherwise. |
420 settings.max_memory_for_prepaint_percentage = 50; | 422 settings.max_memory_for_prepaint_percentage = 50; |
421 } | 423 } |
422 // Webview does not own the surface so should not clear it. | 424 // Webview does not own the surface so should not clear it. |
423 settings.renderer_settings.should_clear_root_render_pass = | 425 settings.renderer_settings.should_clear_root_render_pass = |
424 !using_synchronous_compositor; | 426 !using_synchronous_compositor; |
425 | 427 |
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441 settings.scrollbar_fade_duration_ms = 300; | 443 settings.scrollbar_fade_duration_ms = 300; |
442 #endif | 444 #endif |
443 | 445 |
444 if (cmd->HasSwitch(switches::kEnableLowResTiling)) | 446 if (cmd->HasSwitch(switches::kEnableLowResTiling)) |
445 settings.create_low_res_tiling = true; | 447 settings.create_low_res_tiling = true; |
446 if (cmd->HasSwitch(switches::kDisableLowResTiling)) | 448 if (cmd->HasSwitch(switches::kDisableLowResTiling)) |
447 settings.create_low_res_tiling = false; | 449 settings.create_low_res_tiling = false; |
448 if (cmd->HasSwitch(cc::switches::kEnableBeginFrameScheduling)) | 450 if (cmd->HasSwitch(cc::switches::kEnableBeginFrameScheduling)) |
449 settings.use_external_begin_frame_source = true; | 451 settings.use_external_begin_frame_source = true; |
450 | 452 |
451 settings.renderer_settings.use_rgba_4444_textures |= | 453 if (cmd->HasSwitch(switches::kEnableRGBA4444Textures) && |
452 cmd->HasSwitch(switches::kEnableRGBA4444Textures); | 454 !cmd->HasSwitch(switches::kDisableRGBA4444Textures)) { |
453 settings.renderer_settings.use_rgba_4444_textures &= | 455 settings.renderer_settings.preferred_tile_format = cc::RGBA_4444; |
454 !cmd->HasSwitch(switches::kDisableRGBA4444Textures); | 456 } |
| 457 |
| 458 if (cmd->HasSwitch(cc::switches::kEnableTileCompression)) { |
| 459 settings.renderer_settings.preferred_tile_format = cc::ETC1; |
| 460 } |
455 | 461 |
456 if (widget_->for_oopif()) { | 462 if (widget_->for_oopif()) { |
457 // TODO(simonhong): Apply BeginFrame scheduling for OOPIF. | 463 // TODO(simonhong): Apply BeginFrame scheduling for OOPIF. |
458 // See crbug.com/471411. | 464 // See crbug.com/471411. |
459 settings.use_external_begin_frame_source = false; | 465 settings.use_external_begin_frame_source = false; |
460 } | 466 } |
461 | 467 |
462 settings.max_staging_buffer_usage_in_bytes = 32 * 1024 * 1024; // 32MB | 468 settings.max_staging_buffer_usage_in_bytes = 32 * 1024 * 1024; // 32MB |
463 // Use 1/4th of staging buffers on low-end devices. | 469 // Use 1/4th of staging buffers on low-end devices. |
464 if (base::SysInfo::IsLowEndDevice()) | 470 if (base::SysInfo::IsLowEndDevice()) |
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1113 #endif | 1119 #endif |
1114 return actual; | 1120 return actual; |
1115 } | 1121 } |
1116 | 1122 |
1117 void RenderWidgetCompositor::SetPaintedDeviceScaleFactor( | 1123 void RenderWidgetCompositor::SetPaintedDeviceScaleFactor( |
1118 float device_scale) { | 1124 float device_scale) { |
1119 layer_tree_host_->SetPaintedDeviceScaleFactor(device_scale); | 1125 layer_tree_host_->SetPaintedDeviceScaleFactor(device_scale); |
1120 } | 1126 } |
1121 | 1127 |
1122 } // namespace content | 1128 } // namespace content |
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