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[client] opengl: add gl_dynprocs module

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This is similar to egl_dynprocs, except for OpenGL functions.
This commit is contained in:
Quantum 2021-09-30 06:14:25 -04:00 committed by Geoffrey McRae
parent 3f72de78da
commit ad4b40fad6
4 changed files with 111 additions and 0 deletions
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1
client/CMakeLists.txt
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@ -111,6 +111,7 @@ set(SOURCES
src/util.c
src/clipboard.c
src/kb.c
src/gl_dynprocs.c
src/egl_dynprocs.c
src/eglutil.c
src/overlay_utils.c

50
client/include/gl_dynprocs.h Normal file
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@ -0,0 +1,50 @@
/**
* Looking Glass
* Copyright © 2017-2021 The Looking Glass Authors
* https://looking-glass.io
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc., 59
* Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _H_LG_GL_DYNPROCS_
#define _H_LG_GL_DYNPROCS_
#ifdef ENABLE_OPENGL
#include <GL/gl.h>
#include <GL/glext.h>
struct GLDynProcs
{
PFNGLGENBUFFERSPROC glGenBuffers;
PFNGLBINDBUFFERPROC glBindBuffer;
PFNGLBUFFERDATAPROC glBufferData;
PFNGLBUFFERSUBDATAPROC glBufferSubData;
PFNGLDELETEBUFFERSPROC glDeleteBuffers;
PFNGLISSYNCPROC glIsSync;
PFNGLFENCESYNCPROC glFenceSync;
PFNGLCLIENTWAITSYNCPROC glClientWaitSync;
PFNGLDELETESYNCPROC glDeleteSync;
PFNGLGENERATEMIPMAPPROC glGenerateMipmap;
};
extern struct GLDynProcs g_gl_dynProcs;
void gl_dynProcsInit(void);
#else
#define gl_dynProcsInit(...)
#endif
#endif // _H_LG_GL_DYNPROCS_

58
client/src/gl_dynprocs.c Normal file
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@ -0,0 +1,58 @@
/**
* Looking Glass
* Copyright © 2017-2021 The Looking Glass Authors
* https://looking-glass.io
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc., 59
* Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifdef ENABLE_OPENGL
#include "gl_dynprocs.h"
#include <GL/glx.h>
struct GLDynProcs g_gl_dynProcs = {0};
static void * getProcAddressGL(const char * name)
{
return (void *) glXGetProcAddressARB((const GLubyte *) name);
}
static void * setProcAddressGL2(const char * name, const char * backup)
{
void * func = getProcAddressGL(name);
return func ? func : getProcAddressGL(backup);
}
void gl_dynProcsInit(void)
{
g_gl_dynProcs.glGenBuffers = setProcAddressGL2("glGenBuffers", "glGenBuffersARB");
g_gl_dynProcs.glBindBuffer = setProcAddressGL2("glBindBuffer", "glBindBufferARB");
g_gl_dynProcs.glBufferData = setProcAddressGL2("glBufferData", "glBufferDataARB");
g_gl_dynProcs.glBufferSubData = setProcAddressGL2("glBufferSubData", "glBufferSubDataARB");
g_gl_dynProcs.glDeleteBuffers = setProcAddressGL2("glDeleteBuffers", "glDeleteBuffersARB");
g_gl_dynProcs.glIsSync = getProcAddressGL("glIsSync");
g_gl_dynProcs.glFenceSync = getProcAddressGL("glFenceSync");
g_gl_dynProcs.glClientWaitSync = getProcAddressGL("glClientWaitSync");
g_gl_dynProcs.glDeleteSync = getProcAddressGL("glDeleteSync");
g_gl_dynProcs.glGenerateMipmap = getProcAddressGL("glGenerateMipmap");
if (!g_gl_dynProcs.glGenerateMipmap)
g_gl_dynProcs.glGenerateMipmap = getProcAddressGL("glGenerateMipmapEXT");
};
#endif

2
client/src/main.c
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@ -58,6 +58,7 @@
#include "kb.h"
#include "ll.h"
#include "egl_dynprocs.h"
#include "gl_dynprocs.h"
#include "overlays.h"
#include "overlay_utils.h"
#include "util.h"
@ -1297,6 +1298,7 @@ int main(int argc, char * argv[])
config_init();
ivshmemOptionsInit();
egl_dynProcsInit();
gl_dynProcsInit();
g_state.overlays = ll_new();
app_registerOverlay(&LGOverlayConfig, NULL);