83 lines
2.1 KiB
C++
83 lines
2.1 KiB
C++
/*
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Created on: Oct 19, 2019
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Copyright 2019 flyinghead
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This file is part of Flycast.
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Flycast is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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Flycast is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Flycast. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "gl_context.h"
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#ifndef LIBRETRO
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#include "rend/gles/opengl_driver.h"
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#endif
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#include <cstring>
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void GLGraphicsContext::findGLVersion()
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{
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while (true)
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if (glGetError() == GL_NO_ERROR)
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break;
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glGetIntegerv(GL_MAJOR_VERSION, &majorVersion);
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if (glGetError() == GL_INVALID_ENUM)
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majorVersion = 2;
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else
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{
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glGetIntegerv(GL_MINOR_VERSION, &minorVersion);
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}
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const char *version = (const char *)glGetString(GL_VERSION);
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_isGLES = !strncmp(version, "OpenGL ES", 9);
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INFO_LOG(RENDERER, "OpenGL version: %s", version);
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const char *p = (const char *)glGetString(GL_RENDERER);
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driverName = p != nullptr ? p : "unknown";
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p = (const char *)glGetString(GL_VERSION);
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driverVersion = p != nullptr ? p : "unknown";
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p = (const char *)glGetString(GL_VENDOR);
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std::string vendor = p != nullptr ? p : "";
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if (vendor.substr(0, 4) == "ATI ")
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amd = true;
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else if (driverName.find(" ATI ") != std::string::npos
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|| driverName.find(" AMD ") != std::string::npos)
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// mesa
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amd = true;
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else
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amd = false;
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}
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void GLGraphicsContext::postInit()
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{
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instance = this;
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findGLVersion();
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resetUIDriver();
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}
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void GLGraphicsContext::preTerm()
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{
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#ifndef LIBRETRO
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imguiDriver.reset();
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#endif
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instance = nullptr;
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}
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void GLGraphicsContext::resetUIDriver()
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{
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#ifndef LIBRETRO
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imguiDriver.reset();
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imguiDriver = std::unique_ptr<ImGuiDriver>(new OpenGLDriver());
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#endif
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}
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