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// Copyright (c) 2017 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.
#ifndef GPU_CONFIG_GPU_FEATURE_INFO_H_
#define GPU_CONFIG_GPU_FEATURE_INFO_H_
#include <string>
#include <vector>
#include "gpu/config/gpu_feature_type.h"
#include "gpu/gpu_export.h"
namespace gl {
class GLContext;
} // namespace gl
namespace gpu {
// Flags indicating the status of a GPU feature (see gpu_feature_type.h).
enum GpuFeatureStatus {
kGpuFeatureStatusEnabled,
kGpuFeatureStatusBlacklisted,
kGpuFeatureStatusDisabled,
kGpuFeatureStatusSoftware,
kGpuFeatureStatusUndefined,
kGpuFeatureStatusMax
};
enum AntialiasingMode {
kAntialiasingModeUnspecified,
kAntialiasingModeNone,
kAntialiasingModeMSAAImplicitResolve,
kAntialiasingModeMSAAExplicitResolve,
kAntialiasingModeScreenSpaceAntialiasing,
};
struct GPU_EXPORT WebglPreferences {
AntialiasingMode anti_aliasing_mode = kAntialiasingModeUnspecified;
uint32_t msaa_sample_count = 8;
// WebGL-specific numeric limits.
uint32_t max_active_webgl_contexts = 0;
uint32_t max_active_webgl_contexts_on_worker = 0;
};
struct GPU_EXPORT GpuFeatureInfo {
GpuFeatureInfo();
GpuFeatureInfo(const GpuFeatureInfo&);
GpuFeatureInfo(GpuFeatureInfo&&);
~GpuFeatureInfo();
// Set the GL workarounds and disabled GL extensions to the context.
void ApplyToGLContext(gl::GLContext* context) const;
bool IsWorkaroundEnabled(int32_t workaround) const;
// Return true if GpuFeatureInfo is computed.
bool IsInitialized() const;
GpuFeatureInfo& operator=(const GpuFeatureInfo&);
GpuFeatureInfo& operator=(GpuFeatureInfo&&);
// A vector of GpuFeatureStatus values, one per GpuFeatureType.
// By default, all features are disabled.
GpuFeatureStatus status_values[NUMBER_OF_GPU_FEATURE_TYPES];
// Active gpu driver bug workaround IDs.
// See gpu/config/gpu_driver_bug_workaround_type.h for ID mappings.
std::vector<int32_t> enabled_gpu_driver_bug_workarounds;
// Disabled extensions separated by whitespaces.
std::string disabled_extensions;
// Disabled WebGL extensions separated by whitespaces.
std::string disabled_webgl_extensions;
// Preferences for webgl.
WebglPreferences webgl_preferences;
// Applied gpu blacklist entry indices.
std::vector<uint32_t> applied_gpu_blacklist_entries;
// Applied gpu driver bug list entry indices.
std::vector<uint32_t> applied_gpu_driver_bug_list_entries;
};
} // namespace gpu
#endif // GPU_CONFIG_GPU_FEATURE_INFO_H_