77 lines
2.4 KiB
C++
77 lines
2.4 KiB
C++
//
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// Copyright 2015 The ANGLE Project Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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//
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// Platform.cpp: Implementation methods for angle::Platform.
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#include <platform/Platform.h>
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#include <cstring>
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#include "common/debug.h"
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namespace
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{
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// TODO(jmadill): Make methods owned by egl::Display.
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angle::PlatformMethods &PlatformMethods()
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{
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static angle::PlatformMethods platformMethods;
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return platformMethods;
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}
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} // anonymous namespace
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angle::PlatformMethods *ANGLEPlatformCurrent()
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{
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return &PlatformMethods();
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}
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bool ANGLE_APIENTRY ANGLEGetDisplayPlatform(angle::EGLDisplayType display,
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const char *const methodNames[],
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unsigned int methodNameCount,
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void *context,
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void *platformMethods)
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{
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angle::PlatformMethods **platformMethodsOut =
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reinterpret_cast<angle::PlatformMethods **>(platformMethods);
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// We allow for a lower input count of impl platform methods if the subset is correct.
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if (methodNameCount > angle::g_NumPlatformMethods)
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{
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ERR() << "Invalid platform method count: " << methodNameCount << ", expected "
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<< angle::g_NumPlatformMethods << ".";
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return false;
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}
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for (unsigned int nameIndex = 0; nameIndex < methodNameCount; ++nameIndex)
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{
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const char *expectedName = angle::g_PlatformMethodNames[nameIndex];
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const char *actualName = methodNames[nameIndex];
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// Skip deprecated methods. The names of these methods start with |placeholder|.
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constexpr char kPlaceholder[] = "placeholder";
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if (strncmp(expectedName, kPlaceholder, sizeof(kPlaceholder) - 1) == 0)
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{
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continue;
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}
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if (strcmp(expectedName, actualName) != 0)
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{
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ERR() << "Invalid platform method name: " << actualName << ", expected " << expectedName
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<< ".";
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return false;
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}
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}
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// TODO(jmadill): Store platform methods in display.
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PlatformMethods().context = context;
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*platformMethodsOut = &PlatformMethods();
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return true;
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}
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void ANGLE_APIENTRY ANGLEResetDisplayPlatform(angle::EGLDisplayType display)
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{
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// TODO(jmadill): Store platform methods in display.
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PlatformMethods() = angle::PlatformMethods();
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}
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