48 lines
1.7 KiB
C++
48 lines
1.7 KiB
C++
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "GLESVersionDetector.h"
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#include "DispatchTables.h"
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#include "emugl/common/feature_control.h"
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#include <algorithm>
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GLESDispatchMaxVersion calcMaxVersionFromDispatch() {
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// Detect the proper OpenGL ES version to advertise to the system.
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//
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// If the underlying glesv2 library also is on top of system OpenGL,
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// we assume existence of a function called "gl_dispatch_get_max_version"
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// which matches the return type of gles2_dispatch_get_max_version,
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// and allows us to scale back if the underlying host machine
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// doesn't actually suppport a particular GLES version.
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if (!emugl_feature_is_enabled(android::featurecontrol::GLESDynamicVersion))
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return GLES_DISPATCH_MAX_VERSION_2;
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GLESDispatchMaxVersion underlying_gles2_lib_max =
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gles2_dispatch_get_max_version();
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if (s_gles2.gl_dispatch_get_max_version) {
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GLESDispatchMaxVersion underlying_gl_lib_max =
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(GLESDispatchMaxVersion)s_gles2.gl_dispatch_get_max_version();
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return std::min(underlying_gl_lib_max, underlying_gles2_lib_max);
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} else {
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return underlying_gles2_lib_max;
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}
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return GLES_DISPATCH_MAX_VERSION_2;
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}
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