1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
|
// Copyright (c) 2012 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_COMMAND_BUFFER_SERVICE_FEATURE_INFO_H_
#define GPU_COMMAND_BUFFER_SERVICE_FEATURE_INFO_H_
#include <string>
#include "base/hash_tables.h"
#include "base/memory/ref_counted.h"
#include "gpu/command_buffer/service/gles2_cmd_decoder.h"
#include "gpu/command_buffer/service/gles2_cmd_validation.h"
#include "gpu/gpu_export.h"
namespace gpu {
namespace gles2 {
// FeatureInfo records the features that are available for a ContextGroup.
class GPU_EXPORT FeatureInfo : public base::RefCounted<FeatureInfo> {
public:
typedef scoped_refptr<FeatureInfo> Ref;
struct FeatureFlags {
FeatureFlags()
: chromium_framebuffer_multisample(false),
oes_standard_derivatives(false),
oes_egl_image_external(false),
npot_ok(false),
enable_texture_float_linear(false),
enable_texture_half_float_linear(false),
chromium_webglsl(false),
chromium_stream_texture(false),
angle_translated_shader_source(false),
angle_pack_reverse_row_order(false),
arb_texture_rectangle(false),
angle_instanced_arrays(false),
occlusion_query_boolean(false),
use_arb_occlusion_query2_for_occlusion_query_boolean(false),
use_arb_occlusion_query_for_occlusion_query_boolean(false),
disable_workarounds(false),
is_intel(false),
is_nvidia(false),
is_amd(false) {
}
bool chromium_framebuffer_multisample;
bool oes_standard_derivatives;
bool oes_egl_image_external;
bool npot_ok;
bool enable_texture_float_linear;
bool enable_texture_half_float_linear;
bool chromium_webglsl;
bool chromium_stream_texture;
bool angle_translated_shader_source;
bool angle_pack_reverse_row_order;
bool arb_texture_rectangle;
bool angle_instanced_arrays;
bool occlusion_query_boolean;
bool use_arb_occlusion_query2_for_occlusion_query_boolean;
bool use_arb_occlusion_query_for_occlusion_query_boolean;
bool disable_workarounds;
bool is_intel;
bool is_nvidia;
bool is_amd;
};
FeatureInfo();
// If allowed features = NULL or "*", all features are allowed. Otherwise
// only features that match the strings in allowed_features are allowed.
bool Initialize(const char* allowed_features);
bool Initialize(const DisallowedFeatures& disallowed_features,
const char* allowed_features);
// Turns on certain features if they can be turned on. NULL turns on
// all available features.
void AddFeatures(const char* desired_features);
const Validators* validators() const {
return &validators_;
}
const ValueValidator<GLenum>& GetTextureFormatValidator(GLenum format) {
return texture_format_validators_[format];
}
const std::string& extensions() const {
return extensions_;
}
const FeatureFlags& feature_flags() const {
return feature_flags_;
}
private:
friend class base::RefCounted<FeatureInfo>;
typedef base::hash_map<GLenum, ValueValidator<GLenum> > ValidatorMap;
ValidatorMap texture_format_validators_;
~FeatureInfo();
void AddExtensionString(const std::string& str);
Validators validators_;
DisallowedFeatures disallowed_features_;
// The extensions string returned by glGetString(GL_EXTENSIONS);
std::string extensions_;
// Flags for some features
FeatureFlags feature_flags_;
DISALLOW_COPY_AND_ASSIGN(FeatureInfo);
};
} // namespace gles2
} // namespace gpu
#endif // GPU_COMMAND_BUFFER_SERVICE_FEATURE_INFO_H_
|
