blob: cbf3860ae36aff8cb36d1e49663fad3dab13d0c2 [file] [log] [blame]
// Copyright (c) 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "gpu/command_buffer/service/service_utils.h"
#include <string>
#include "base/command_line.h"
#include "base/strings/string_number_conversions.h"
#include "gpu/command_buffer/common/gles2_cmd_utils.h"
#include "gpu/command_buffer/service/context_group.h"
#include "gpu/command_buffer/service/gpu_switches.h"
#include "gpu/config/gpu_finch_features.h"
#include "ui/gl/gl_switches.h"
#if defined(USE_EGL)
#include "ui/gl/gl_surface_egl.h"
#endif // defined(USE_EGL)
namespace gpu {
namespace gles2 {
namespace {
bool GetUintFromSwitch(const base::CommandLine* command_line,
const base::StringPiece& switch_string,
uint32_t* value) {
if (!command_line->HasSwitch(switch_string))
return false;
std::string switch_value(command_line->GetSwitchValueASCII(switch_string));
return base::StringToUint(switch_value, value);
}
} // namespace
gl::GLContextAttribs GenerateGLContextAttribs(
const ContextCreationAttribs& attribs_helper,
const ContextGroup* context_group) {
return GenerateGLContextAttribs(attribs_helper,
context_group->use_passthrough_cmd_decoder());
}
gl::GLContextAttribs GenerateGLContextAttribs(
const ContextCreationAttribs& attribs_helper,
bool use_passthrough_cmd_decoder) {
gl::GLContextAttribs attribs;
attribs.gpu_preference = attribs_helper.gpu_preference;
if (use_passthrough_cmd_decoder) {
attribs.bind_generates_resource = attribs_helper.bind_generates_resource;
attribs.webgl_compatibility_context =
IsWebGLContextType(attribs_helper.context_type);
// Always use the global texture share group for the passthrough command
// decoder
attribs.global_texture_share_group = true;
attribs.robust_resource_initialization = true;
attribs.robust_buffer_access = true;
// Request a specific context version instead of always 3.0
if (IsWebGL2ComputeContextType(attribs_helper.context_type)) {
attribs.client_major_es_version = 3;
attribs.client_minor_es_version = 1;
} else if (IsWebGL2OrES3ContextType(attribs_helper.context_type)) {
attribs.client_major_es_version = 3;
attribs.client_minor_es_version = 0;
} else {
DCHECK(IsWebGL1OrES2ContextType(attribs_helper.context_type));
attribs.client_major_es_version = 2;
attribs.client_minor_es_version = 0;
}
} else {
attribs.client_major_es_version = 3;
attribs.client_minor_es_version = 0;
}
if (base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kDisableES3GLContext)) {
// Forcefully disable ES3 contexts
attribs.client_major_es_version = 2;
attribs.client_minor_es_version = 0;
}
return attribs;
}
bool UsePassthroughCommandDecoder(const base::CommandLine* command_line) {
std::string switch_value;
if (command_line->HasSwitch(switches::kUseCmdDecoder)) {
switch_value = command_line->GetSwitchValueASCII(switches::kUseCmdDecoder);
}
if (switch_value == kCmdDecoderPassthroughName) {
return true;
} else if (switch_value == kCmdDecoderValidatingName) {
return false;
} else {
// Unrecognized or missing switch, use the default.
return base::FeatureList::IsEnabled(
features::kDefaultPassthroughCommandDecoder);
}
}
bool PassthroughCommandDecoderSupported() {
#if defined(USE_EGL)
// Using the passthrough command buffer requires that specific ANGLE
// extensions are exposed
return gl::GLSurfaceEGL::IsCreateContextBindGeneratesResourceSupported() &&
gl::GLSurfaceEGL::IsCreateContextWebGLCompatabilitySupported() &&
gl::GLSurfaceEGL::IsRobustResourceInitSupported() &&
gl::GLSurfaceEGL::IsDisplayTextureShareGroupSupported() &&
gl::GLSurfaceEGL::IsCreateContextClientArraysSupported();
#else
// The passthrough command buffer is only supported on top of ANGLE/EGL
return false;
#endif // defined(USE_EGL)
}
GpuPreferences ParseGpuPreferences(const base::CommandLine* command_line) {
GpuPreferences gpu_preferences;
gpu_preferences.compile_shader_always_succeeds =
command_line->HasSwitch(switches::kCompileShaderAlwaysSucceeds);
gpu_preferences.disable_gl_error_limit =
command_line->HasSwitch(switches::kDisableGLErrorLimit);
gpu_preferences.disable_glsl_translator =
command_line->HasSwitch(switches::kDisableGLSLTranslator);
gpu_preferences.disable_shader_name_hashing =
command_line->HasSwitch(switches::kDisableShaderNameHashing);
gpu_preferences.enable_gpu_command_logging =
command_line->HasSwitch(switches::kEnableGPUCommandLogging);
gpu_preferences.enable_gpu_debugging =
command_line->HasSwitch(switches::kEnableGPUDebugging);
gpu_preferences.enable_gpu_service_logging_gpu =
command_line->HasSwitch(switches::kEnableGPUServiceLoggingGPU);
gpu_preferences.enable_gpu_driver_debug_logging =
command_line->HasSwitch(switches::kEnableGPUDriverDebugLogging);
gpu_preferences.disable_gpu_program_cache =
command_line->HasSwitch(switches::kDisableGpuProgramCache);
gpu_preferences.enforce_gl_minimums =
command_line->HasSwitch(switches::kEnforceGLMinimums);
if (GetUintFromSwitch(command_line, switches::kForceGpuMemAvailableMb,
&gpu_preferences.force_gpu_mem_available)) {
gpu_preferences.force_gpu_mem_available *= 1024 * 1024;
}
if (GetUintFromSwitch(command_line, switches::kGpuProgramCacheSizeKb,
&gpu_preferences.gpu_program_cache_size)) {
gpu_preferences.gpu_program_cache_size *= 1024;
}
gpu_preferences.disable_gpu_shader_disk_cache =
command_line->HasSwitch(switches::kDisableGpuShaderDiskCache);
gpu_preferences.enable_threaded_texture_mailboxes =
command_line->HasSwitch(switches::kEnableThreadedTextureMailboxes);
gpu_preferences.gl_shader_interm_output =
command_line->HasSwitch(switches::kGLShaderIntermOutput);
gpu_preferences.emulate_shader_precision =
command_line->HasSwitch(switches::kEmulateShaderPrecision);
gpu_preferences.enable_gpu_service_logging =
command_line->HasSwitch(switches::kEnableGPUServiceLogging);
gpu_preferences.enable_gpu_service_tracing =
command_line->HasSwitch(switches::kEnableGPUServiceTracing);
gpu_preferences.use_passthrough_cmd_decoder =
gpu::gles2::UsePassthroughCommandDecoder(command_line);
gpu_preferences.disable_gpu_driver_bug_workarounds =
command_line->HasSwitch(switches::kDisableGpuDriverBugWorkarounds);
gpu_preferences.ignore_gpu_blacklist =
command_line->HasSwitch(switches::kIgnoreGpuBlacklist);
gpu_preferences.enable_webgpu =
command_line->HasSwitch(switches::kEnableUnsafeWebGPU);
gpu_preferences.enable_raster_to_sk_image =
command_line->HasSwitch(switches::kEnableRasterToSkImage);
gpu_preferences.enable_vulkan =
command_line->HasSwitch(switches::kEnableVulkan);
return gpu_preferences;
}
} // namespace gles2
} // namespace gpu