mirror of https://github.com/OpenRCT2/OpenRCT2.git
78 lines
2.5 KiB
C++
78 lines
2.5 KiB
C++
/*****************************************************************************
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* Copyright (c) 2014-2024 OpenRCT2 developers
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*
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* For a complete list of all authors, please refer to contributors.md
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* Interested in contributing? Visit https://github.com/OpenRCT2/OpenRCT2
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*
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* OpenRCT2 is licensed under the GNU General Public License version 3.
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*****************************************************************************/
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#ifndef DISABLE_OPENGL
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# include "OpenGLAPI.h"
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# if OPENGL_NO_LINK
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# define OPENGL_PROC(TYPE, PROC) TYPE PROC = nullptr;
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# include "OpenGLAPIProc.h"
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# undef OPENGL_PROC
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# include <SDL_video.h>
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# include <openrct2/core/Console.hpp>
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static const char* TryLoadAllProcAddresses()
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{
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# define OPENGL_PROC(TYPE, PROC) \
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{ \
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PROC = reinterpret_cast<TYPE>(SDL_GL_GetProcAddress(#PROC)); \
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if (PROC == nullptr) \
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{ \
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return #PROC; \
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} \
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}
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# include "OpenGLAPIProc.h"
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# undef OPENGL_PROC
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return nullptr;
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}
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# endif /* #if OPENGL_NO_LINK */
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namespace OpenGLState
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{
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uint16_t ActiveTexture;
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GLuint CurrentProgram;
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void Reset()
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{
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ActiveTexture = UINT16_MAX;
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CurrentProgram = UINT32_MAX;
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}
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} // namespace OpenGLState
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void OpenGLAPI::SetTexture(uint16_t index, GLenum type, GLuint texture)
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{
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if (OpenGLState::ActiveTexture != index)
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{
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glActiveTexture(GL_TEXTURE0 + index);
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}
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glBindTexture(type, texture);
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}
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bool OpenGLAPI::Initialise()
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{
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OpenGLState::Reset();
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# ifdef OPENGL_NO_LINK
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const char* failedProcName = TryLoadAllProcAddresses();
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if (failedProcName != nullptr)
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{
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Console::Error::WriteLine("Failed to load %s.", failedProcName);
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return false;
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}
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# endif
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return true;
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}
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#endif /* DISABLE_OPENGL */
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