551570d29b
Split ogl_get_verinfo() into ogl_tune_for_current() and ogl_extensions_init(), and consolidate all the OpenGL extension handling into ogl_extensions.cpp. Unify the code paths for texture anisotropy and GPU synchronization for OpenGL and OpenGL ES. Currently, our renderer only uses GLES 1.0, so no real world implementation will support sync objects for such an old context, but the logic is valid, and this way, the GLES specific code paths are reduced. This patch also fixes an issue where the old ogl_get_verinfo() did modify the texture filtering mode if no anisotropic filter was available. This was some leftover from the time when the anisotropic filter was a just a specific CGameConfig.TexFilt mode, and not a separate, orthogonal setting CGameCfg.TexAnisotropy that it is now.
80 lines
2 KiB
C++
80 lines
2 KiB
C++
/*
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* This file is part of the DXX-Rebirth project <http://www.dxx-rebirth.com/>.
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* It is copyright by its individual contributors, as recorded in the
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* project's Git history. See COPYING.txt at the top level for license
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* terms and a link to the Git history.
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*/
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/* OpenGL extensions:
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* We use global function pointer for any extension function we want to use.
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*/
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#pragma once
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#include <cstdint>
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#if defined(__APPLE__) && defined(__MACH__)
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#include <OpenGL/gl.h>
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#else
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#include <GL/gl.h>
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#endif
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/* global extension stuff (from glext.h)
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*/
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#ifndef APIENTRY
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#define APIENTRY
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#endif
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#ifndef APIENTRYP
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#define APIENTRYP APIENTRY *
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#endif
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#ifndef GLAPI
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#define GLAPI extern
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#endif
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typedef int64_t GLint64;
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typedef uint64_t GLuint64;
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/* GL_ARB_sync */
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typedef struct __GLsync *GLsync;
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typedef GLsync (APIENTRYP PFNGLFENCESYNCPROC) (GLenum condition, GLbitfield flags);
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typedef GLboolean (APIENTRYP PFNGLISSYNCPROC) (GLsync sync);
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typedef void (APIENTRYP PFNGLDELETESYNCPROC) (GLsync sync);
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typedef GLenum (APIENTRYP PFNGLCLIENTWAITSYNCPROC) (GLsync sync, GLbitfield flags, GLuint64 timeout);
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typedef void (APIENTRYP PFNGLWAITSYNCPROC) (GLsync sync, GLbitfield flags, GLuint64 timeout);
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#define GL_SYNC_FLUSH_COMMANDS_BIT 0x00000001
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#define GL_SYNC_GPU_COMMANDS_COMPLETE 0x9117
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#define GL_TIMEOUT_EXPIRED 0x911B
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/* GL_EXT_texture */
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#ifndef GL_VERSION_1_1
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#ifdef GL_EXT_texture
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#define GL_INTENSITY4 GL_INTENSITY4_EXT
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#define GL_INTENSITY8 GL_INTENSITY8_EXT
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#endif
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#endif
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/* GL_EXT_texture_filter_anisotropic */
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#ifndef GL_TEXTURE_MAX_ANISOTROPY_EXT
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#define GL_TEXTURE_MAX_ANISOTROPY_EXT 0x84FE
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#endif
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#ifndef GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT
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#define GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT 0x84FF
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#endif
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namespace dcx {
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extern bool ogl_have_ARB_sync;
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extern PFNGLFENCESYNCPROC glFenceSyncFunc;
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extern PFNGLDELETESYNCPROC glDeleteSyncFunc;
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extern PFNGLCLIENTWAITSYNCPROC glClientWaitSyncFunc;
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extern GLfloat ogl_maxanisotropy;
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/* Global initialization:
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* will need an OpenGL context and intialize all function pointers.
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*/
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void ogl_extensions_init();
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}
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