423 lines
16 KiB
C
423 lines
16 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <glad/egl.h>
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#ifndef GLAD_IMPL_UTIL_C_
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#define GLAD_IMPL_UTIL_C_
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#if _MSC_VER >= 1400
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#define GLAD_IMPL_UTIL_STRNCPY(dest, source, len) strncpy_s(dest, len, source, len-1);
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#else
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#define GLAD_IMPL_UTIL_STRNCPY(dest, source, len) strncpy(dest, source, len);
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#endif
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#ifdef _MSC_VER
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#define GLAD_IMPL_UTIL_SSCANF sscanf_s
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#else
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#define GLAD_IMPL_UTIL_SSCANF sscanf
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#endif
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#endif /* GLAD_IMPL_UTIL_C_ */
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int GLAD_EGL_VERSION_1_0;
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int GLAD_EGL_VERSION_1_1;
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int GLAD_EGL_VERSION_1_2;
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int GLAD_EGL_VERSION_1_3;
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int GLAD_EGL_VERSION_1_4;
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int GLAD_EGL_VERSION_1_5;
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int GLAD_EGL_EXT_platform_device;
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int GLAD_EGL_EXT_platform_base;
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int GLAD_EGL_NV_device_cuda;
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int GLAD_EGL_EXT_device_enumeration;
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int GLAD_EGL_EXT_device_query;
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int GLAD_EGL_EXT_device_base;
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int GLAD_EGL_NV_cuda_event;
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PFNEGLQUERYDEVICESEXTPROC glad_eglQueryDevicesEXT;
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PFNEGLCREATEPBUFFERSURFACEPROC glad_eglCreatePbufferSurface;
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PFNEGLGETERRORPROC glad_eglGetError;
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PFNEGLGETPROCADDRESSPROC glad_eglGetProcAddress;
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PFNEGLGETCURRENTDISPLAYPROC glad_eglGetCurrentDisplay;
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PFNEGLQUERYAPIPROC glad_eglQueryAPI;
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PFNEGLCREATEPLATFORMPIXMAPSURFACEPROC glad_eglCreatePlatformPixmapSurface;
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PFNEGLQUERYDISPLAYATTRIBKHRPROC glad_eglQueryDisplayAttribKHR;
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PFNEGLDESTROYSYNCPROC glad_eglDestroySync;
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PFNEGLCREATEIMAGEPROC glad_eglCreateImage;
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PFNEGLQUERYCONTEXTPROC glad_eglQueryContext;
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PFNEGLSWAPBUFFERSPROC glad_eglSwapBuffers;
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PFNEGLCREATECONTEXTPROC glad_eglCreateContext;
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PFNEGLCHOOSECONFIGPROC glad_eglChooseConfig;
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PFNEGLBINDAPIPROC glad_eglBindAPI;
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PFNEGLWAITNATIVEPROC glad_eglWaitNative;
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PFNEGLTERMINATEPROC glad_eglTerminate;
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PFNEGLCREATEPLATFORMPIXMAPSURFACEEXTPROC glad_eglCreatePlatformPixmapSurfaceEXT;
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PFNEGLRELEASETHREADPROC glad_eglReleaseThread;
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PFNEGLCREATEPLATFORMWINDOWSURFACEPROC glad_eglCreatePlatformWindowSurface;
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PFNEGLGETCONFIGATTRIBPROC glad_eglGetConfigAttrib;
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PFNEGLGETCURRENTSURFACEPROC glad_eglGetCurrentSurface;
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PFNEGLCOPYBUFFERSPROC glad_eglCopyBuffers;
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PFNEGLGETPLATFORMDISPLAYEXTPROC glad_eglGetPlatformDisplayEXT;
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PFNEGLQUERYDEVICEATTRIBEXTPROC glad_eglQueryDeviceAttribEXT;
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PFNEGLCREATEPIXMAPSURFACEPROC glad_eglCreatePixmapSurface;
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PFNEGLBINDTEXIMAGEPROC glad_eglBindTexImage;
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PFNEGLGETPLATFORMDISPLAYPROC glad_eglGetPlatformDisplay;
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PFNEGLGETDISPLAYPROC glad_eglGetDisplay;
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PFNEGLQUERYSTRINGPROC glad_eglQueryString;
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PFNEGLCLIENTWAITSYNCPROC glad_eglClientWaitSync;
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PFNEGLWAITSYNCPROC glad_eglWaitSync;
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PFNEGLDESTROYIMAGEPROC glad_eglDestroyImage;
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PFNEGLRELEASETEXIMAGEPROC glad_eglReleaseTexImage;
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PFNEGLQUERYDISPLAYATTRIBEXTPROC glad_eglQueryDisplayAttribEXT;
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PFNEGLDESTROYCONTEXTPROC glad_eglDestroyContext;
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PFNEGLQUERYDEVICESTRINGEXTPROC glad_eglQueryDeviceStringEXT;
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PFNEGLCREATEWINDOWSURFACEPROC glad_eglCreateWindowSurface;
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PFNEGLGETCURRENTCONTEXTPROC glad_eglGetCurrentContext;
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PFNEGLINITIALIZEPROC glad_eglInitialize;
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PFNEGLDESTROYSURFACEPROC glad_eglDestroySurface;
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PFNEGLMAKECURRENTPROC glad_eglMakeCurrent;
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PFNEGLCREATEPLATFORMWINDOWSURFACEEXTPROC glad_eglCreatePlatformWindowSurfaceEXT;
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PFNEGLSWAPINTERVALPROC glad_eglSwapInterval;
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PFNEGLCREATESYNCPROC glad_eglCreateSync;
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PFNEGLGETSYNCATTRIBPROC glad_eglGetSyncAttrib;
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PFNEGLSURFACEATTRIBPROC glad_eglSurfaceAttrib;
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PFNEGLWAITGLPROC glad_eglWaitGL;
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PFNEGLQUERYSURFACEPROC glad_eglQuerySurface;
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PFNEGLGETCONFIGSPROC glad_eglGetConfigs;
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PFNEGLWAITCLIENTPROC glad_eglWaitClient;
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PFNEGLCREATEPBUFFERFROMCLIENTBUFFERPROC glad_eglCreatePbufferFromClientBuffer;
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static void load_EGL_VERSION_1_0( GLADuserptrloadfunc load, void* userptr) {
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if(!GLAD_EGL_VERSION_1_0) return;
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eglCreatePbufferSurface = (PFNEGLCREATEPBUFFERSURFACEPROC) load("eglCreatePbufferSurface", userptr);
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eglGetError = (PFNEGLGETERRORPROC) load("eglGetError", userptr);
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eglGetProcAddress = (PFNEGLGETPROCADDRESSPROC) load("eglGetProcAddress", userptr);
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eglGetCurrentDisplay = (PFNEGLGETCURRENTDISPLAYPROC) load("eglGetCurrentDisplay", userptr);
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eglQueryContext = (PFNEGLQUERYCONTEXTPROC) load("eglQueryContext", userptr);
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eglSwapBuffers = (PFNEGLSWAPBUFFERSPROC) load("eglSwapBuffers", userptr);
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eglCreateContext = (PFNEGLCREATECONTEXTPROC) load("eglCreateContext", userptr);
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eglChooseConfig = (PFNEGLCHOOSECONFIGPROC) load("eglChooseConfig", userptr);
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eglWaitNative = (PFNEGLWAITNATIVEPROC) load("eglWaitNative", userptr);
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eglTerminate = (PFNEGLTERMINATEPROC) load("eglTerminate", userptr);
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eglCopyBuffers = (PFNEGLCOPYBUFFERSPROC) load("eglCopyBuffers", userptr);
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eglGetConfigAttrib = (PFNEGLGETCONFIGATTRIBPROC) load("eglGetConfigAttrib", userptr);
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eglGetCurrentSurface = (PFNEGLGETCURRENTSURFACEPROC) load("eglGetCurrentSurface", userptr);
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eglCreatePixmapSurface = (PFNEGLCREATEPIXMAPSURFACEPROC) load("eglCreatePixmapSurface", userptr);
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eglGetDisplay = (PFNEGLGETDISPLAYPROC) load("eglGetDisplay", userptr);
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eglQueryString = (PFNEGLQUERYSTRINGPROC) load("eglQueryString", userptr);
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eglDestroyContext = (PFNEGLDESTROYCONTEXTPROC) load("eglDestroyContext", userptr);
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eglCreateWindowSurface = (PFNEGLCREATEWINDOWSURFACEPROC) load("eglCreateWindowSurface", userptr);
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eglInitialize = (PFNEGLINITIALIZEPROC) load("eglInitialize", userptr);
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eglDestroySurface = (PFNEGLDESTROYSURFACEPROC) load("eglDestroySurface", userptr);
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eglMakeCurrent = (PFNEGLMAKECURRENTPROC) load("eglMakeCurrent", userptr);
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eglWaitGL = (PFNEGLWAITGLPROC) load("eglWaitGL", userptr);
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eglQuerySurface = (PFNEGLQUERYSURFACEPROC) load("eglQuerySurface", userptr);
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eglGetConfigs = (PFNEGLGETCONFIGSPROC) load("eglGetConfigs", userptr);
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}
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static void load_EGL_VERSION_1_1( GLADuserptrloadfunc load, void* userptr) {
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if(!GLAD_EGL_VERSION_1_1) return;
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eglReleaseTexImage = (PFNEGLRELEASETEXIMAGEPROC) load("eglReleaseTexImage", userptr);
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eglSurfaceAttrib = (PFNEGLSURFACEATTRIBPROC) load("eglSurfaceAttrib", userptr);
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eglBindTexImage = (PFNEGLBINDTEXIMAGEPROC) load("eglBindTexImage", userptr);
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eglSwapInterval = (PFNEGLSWAPINTERVALPROC) load("eglSwapInterval", userptr);
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}
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static void load_EGL_VERSION_1_2( GLADuserptrloadfunc load, void* userptr) {
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if(!GLAD_EGL_VERSION_1_2) return;
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eglBindAPI = (PFNEGLBINDAPIPROC) load("eglBindAPI", userptr);
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eglQueryAPI = (PFNEGLQUERYAPIPROC) load("eglQueryAPI", userptr);
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eglWaitClient = (PFNEGLWAITCLIENTPROC) load("eglWaitClient", userptr);
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eglCreatePbufferFromClientBuffer = (PFNEGLCREATEPBUFFERFROMCLIENTBUFFERPROC) load("eglCreatePbufferFromClientBuffer", userptr);
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eglReleaseThread = (PFNEGLRELEASETHREADPROC) load("eglReleaseThread", userptr);
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}
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static void load_EGL_VERSION_1_4( GLADuserptrloadfunc load, void* userptr) {
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if(!GLAD_EGL_VERSION_1_4) return;
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eglGetCurrentContext = (PFNEGLGETCURRENTCONTEXTPROC) load("eglGetCurrentContext", userptr);
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}
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static void load_EGL_VERSION_1_5( GLADuserptrloadfunc load, void* userptr) {
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if(!GLAD_EGL_VERSION_1_5) return;
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eglDestroySync = (PFNEGLDESTROYSYNCPROC) load("eglDestroySync", userptr);
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eglCreateImage = (PFNEGLCREATEIMAGEPROC) load("eglCreateImage", userptr);
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eglGetPlatformDisplay = (PFNEGLGETPLATFORMDISPLAYPROC) load("eglGetPlatformDisplay", userptr);
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eglDestroyImage = (PFNEGLDESTROYIMAGEPROC) load("eglDestroyImage", userptr);
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eglClientWaitSync = (PFNEGLCLIENTWAITSYNCPROC) load("eglClientWaitSync", userptr);
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eglWaitSync = (PFNEGLWAITSYNCPROC) load("eglWaitSync", userptr);
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eglCreateSync = (PFNEGLCREATESYNCPROC) load("eglCreateSync", userptr);
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eglGetSyncAttrib = (PFNEGLGETSYNCATTRIBPROC) load("eglGetSyncAttrib", userptr);
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eglCreatePlatformWindowSurface = (PFNEGLCREATEPLATFORMWINDOWSURFACEPROC) load("eglCreatePlatformWindowSurface", userptr);
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eglCreatePlatformPixmapSurface = (PFNEGLCREATEPLATFORMPIXMAPSURFACEPROC) load("eglCreatePlatformPixmapSurface", userptr);
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}
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static void load_EGL_EXT_platform_base( GLADuserptrloadfunc load, void* userptr) {
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if(!GLAD_EGL_EXT_platform_base) return;
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eglCreatePlatformWindowSurfaceEXT = (PFNEGLCREATEPLATFORMWINDOWSURFACEEXTPROC) load("eglCreatePlatformWindowSurfaceEXT", userptr);
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eglGetPlatformDisplayEXT = (PFNEGLGETPLATFORMDISPLAYEXTPROC) load("eglGetPlatformDisplayEXT", userptr);
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eglCreatePlatformPixmapSurfaceEXT = (PFNEGLCREATEPLATFORMPIXMAPSURFACEEXTPROC) load("eglCreatePlatformPixmapSurfaceEXT", userptr);
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}
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static void load_EGL_EXT_device_enumeration( GLADuserptrloadfunc load, void* userptr) {
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if(!GLAD_EGL_EXT_device_enumeration) return;
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eglQueryDevicesEXT = (PFNEGLQUERYDEVICESEXTPROC) load("eglQueryDevicesEXT", userptr);
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}
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static void load_EGL_EXT_device_query( GLADuserptrloadfunc load, void* userptr) {
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if(!GLAD_EGL_EXT_device_query) return;
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eglQueryDisplayAttribEXT = (PFNEGLQUERYDISPLAYATTRIBEXTPROC) load("eglQueryDisplayAttribEXT", userptr);
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eglQueryDeviceStringEXT = (PFNEGLQUERYDEVICESTRINGEXTPROC) load("eglQueryDeviceStringEXT", userptr);
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eglQueryDeviceAttribEXT = (PFNEGLQUERYDEVICEATTRIBEXTPROC) load("eglQueryDeviceAttribEXT", userptr);
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eglQueryDisplayAttribKHR = (PFNEGLQUERYDISPLAYATTRIBKHRPROC) load("eglQueryDisplayAttribKHR", userptr);
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}
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static void load_EGL_EXT_device_base( GLADuserptrloadfunc load, void* userptr) {
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if(!GLAD_EGL_EXT_device_base) return;
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eglQueryDisplayAttribEXT = (PFNEGLQUERYDISPLAYATTRIBEXTPROC) load("eglQueryDisplayAttribEXT", userptr);
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eglQueryDevicesEXT = (PFNEGLQUERYDEVICESEXTPROC) load("eglQueryDevicesEXT", userptr);
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eglQueryDeviceStringEXT = (PFNEGLQUERYDEVICESTRINGEXTPROC) load("eglQueryDeviceStringEXT", userptr);
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eglQueryDeviceAttribEXT = (PFNEGLQUERYDEVICEATTRIBEXTPROC) load("eglQueryDeviceAttribEXT", userptr);
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eglQueryDisplayAttribKHR = (PFNEGLQUERYDISPLAYATTRIBKHRPROC) load("eglQueryDisplayAttribKHR", userptr);
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}
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static int get_exts(EGLDisplay display, const char **extensions) {
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*extensions = eglQueryString(display, EGL_EXTENSIONS);
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return extensions != NULL;
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}
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static int has_ext(const char *extensions, const char *ext) {
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const char *loc;
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const char *terminator;
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if(extensions == NULL) {
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return 0;
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}
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while(1) {
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loc = strstr(extensions, ext);
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if(loc == NULL) {
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return 0;
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}
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terminator = loc + strlen(ext);
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if((loc == extensions || *(loc - 1) == ' ') &&
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(*terminator == ' ' || *terminator == '\0')) {
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return 1;
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}
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extensions = terminator;
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}
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}
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static GLADapiproc glad_egl_get_proc_from_userptr(const char *name, void *userptr) {
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return (GLAD_GNUC_EXTENSION (GLADapiproc (*)(const char *name)) userptr)(name);
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}
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static int find_extensionsEGL(EGLDisplay display) {
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const char *extensions;
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if (!get_exts(display, &extensions)) return 0;
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GLAD_EGL_EXT_platform_device = has_ext(extensions, "EGL_EXT_platform_device");
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GLAD_EGL_EXT_platform_base = has_ext(extensions, "EGL_EXT_platform_base");
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GLAD_EGL_NV_device_cuda = has_ext(extensions, "EGL_NV_device_cuda");
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GLAD_EGL_EXT_device_enumeration = has_ext(extensions, "EGL_EXT_device_enumeration");
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GLAD_EGL_EXT_device_query = has_ext(extensions, "EGL_EXT_device_query");
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GLAD_EGL_EXT_device_base = has_ext(extensions, "EGL_EXT_device_base");
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GLAD_EGL_NV_cuda_event = has_ext(extensions, "EGL_NV_cuda_event");
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return 1;
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}
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static int find_coreEGL(EGLDisplay display) {
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int major, minor;
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const char *version;
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if (display == NULL) {
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display = EGL_NO_DISPLAY; /* this is usually NULL, better safe than sorry */
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}
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if (display == EGL_NO_DISPLAY) {
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display = eglGetCurrentDisplay();
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}
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if (display == EGL_NO_DISPLAY) {
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display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
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}
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if (display == EGL_NO_DISPLAY) {
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return 0;
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}
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version = eglQueryString(display, EGL_VERSION);
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(void) eglGetError();
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if (version == NULL) {
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major = 1;
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minor = 0;
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} else {
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GLAD_IMPL_UTIL_SSCANF(version, "%d.%d", &major, &minor);
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}
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GLAD_EGL_VERSION_1_0 = (major == 1 && minor >= 0) || major > 1;
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GLAD_EGL_VERSION_1_1 = (major == 1 && minor >= 1) || major > 1;
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GLAD_EGL_VERSION_1_2 = (major == 1 && minor >= 2) || major > 1;
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GLAD_EGL_VERSION_1_3 = (major == 1 && minor >= 3) || major > 1;
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GLAD_EGL_VERSION_1_4 = (major == 1 && minor >= 4) || major > 1;
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GLAD_EGL_VERSION_1_5 = (major == 1 && minor >= 5) || major > 1;
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return GLAD_MAKE_VERSION(major, minor);
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}
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int gladLoadEGLUserPtr(EGLDisplay display, GLADuserptrloadfunc load, void* userptr) {
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int version;
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eglGetDisplay = (PFNEGLGETDISPLAYPROC) load("eglGetDisplay", userptr);
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eglGetCurrentDisplay = (PFNEGLGETCURRENTDISPLAYPROC) load("eglGetCurrentDisplay", userptr);
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eglQueryString = (PFNEGLQUERYSTRINGPROC) load("eglQueryString", userptr);
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eglGetError = (PFNEGLGETERRORPROC) load("eglGetError", userptr);
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if (eglGetDisplay == NULL || eglGetCurrentDisplay == NULL || eglQueryString == NULL || eglGetError == NULL) return 0;
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version = find_coreEGL(display);
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if (!version) return 0;
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load_EGL_VERSION_1_0(load, userptr);
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load_EGL_VERSION_1_1(load, userptr);
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load_EGL_VERSION_1_2(load, userptr);
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load_EGL_VERSION_1_4(load, userptr);
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load_EGL_VERSION_1_5(load, userptr);
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if (!find_extensionsEGL(display)) return 0;
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load_EGL_EXT_platform_base(load, userptr);
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load_EGL_EXT_device_enumeration(load, userptr);
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load_EGL_EXT_device_query(load, userptr);
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load_EGL_EXT_device_base(load, userptr);
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return version;
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}
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int gladLoadEGL(EGLDisplay display, GLADloadfunc load) {
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return gladLoadEGLUserPtr(display, glad_egl_get_proc_from_userptr, GLAD_GNUC_EXTENSION (void*) load);
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}
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#ifdef GLAD_EGL
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#ifndef GLAD_LOADER_LIBRARY_C_
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#define GLAD_LOADER_LIBRARY_C_
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#include <stddef.h>
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#include <stdlib.h>
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#if GLAD_PLATFORM_WIN32
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#include <windows.h>
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#else
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#include <dlfcn.h>
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#endif
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static void* glad_get_dlopen_handle(const char *lib_names[], int length) {
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void *handle = NULL;
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int i;
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for (i = 0; i < length; ++i) {
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#if GLAD_PLATFORM_WIN32
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#if GLAD_PLATFORM_UWP
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size_t buffer_size = (strlen(lib_names[i]) + 1) * sizeof(WCHAR);
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LPWSTR buffer = (LPWSTR) malloc(buffer_size);
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if (buffer != NULL) {
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int ret = MultiByteToWideChar(CP_ACP, 0, lib_names[i], -1, buffer, buffer_size);
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if (ret != 0) {
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handle = (void*) LoadPackagedLibrary(buffer, 0);
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}
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free((void*) buffer);
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}
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#else
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handle = (void*) LoadLibraryA(lib_names[i]);
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#endif
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#else
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handle = dlopen(lib_names[i], RTLD_LAZY | RTLD_LOCAL);
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#endif
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if (handle != NULL) {
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return handle;
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}
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}
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return NULL;
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}
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static void glad_close_dlopen_handle(void* handle) {
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if (handle != NULL) {
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#if GLAD_PLATFORM_WIN32
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FreeLibrary((HMODULE) handle);
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#else
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dlclose(handle);
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#endif
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}
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}
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static GLADapiproc glad_dlsym_handle(void* handle, const char *name) {
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if (handle == NULL) {
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return NULL;
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}
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#if GLAD_PLATFORM_WIN32
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return (GLADapiproc) GetProcAddress((HMODULE) handle, name);
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#else
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return GLAD_GNUC_EXTENSION (GLADapiproc) dlsym(handle, name);
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#endif
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}
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#endif /* GLAD_LOADER_LIBRARY_C_ */
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struct _glad_egl_userptr {
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void *handle;
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PFNEGLGETPROCADDRESSPROC get_proc_address_ptr;
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};
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static GLADapiproc glad_egl_get_proc(const char* name, void *vuserptr) {
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struct _glad_egl_userptr userptr = *(struct _glad_egl_userptr*) vuserptr;
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GLADapiproc result = NULL;
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result = glad_dlsym_handle(userptr.handle, name);
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if (result == NULL) {
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result = GLAD_GNUC_EXTENSION (GLADapiproc) userptr.get_proc_address_ptr(name);
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}
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return result;
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}
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static void* _egl_handle = NULL;
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int gladLoaderLoadEGL(EGLDisplay display) {
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#ifdef __APPLE__
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static const char *NAMES[] = {"libEGL.dylib"};
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#elif GLAD_PLATFORM_WIN32
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static const char *NAMES[] = {"libEGL.dll", "EGL.dll"};
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#else
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static const char *NAMES[] = {"libEGL.so.1", "libEGL.so"};
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#endif
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int version = 0;
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int did_load = 0;
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struct _glad_egl_userptr userptr;
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if (_egl_handle == NULL) {
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_egl_handle = glad_get_dlopen_handle(NAMES, sizeof(NAMES) / sizeof(NAMES[0]));
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did_load = _egl_handle != NULL;
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}
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if (_egl_handle != NULL) {
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userptr.handle = _egl_handle;
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userptr.get_proc_address_ptr = (PFNEGLGETPROCADDRESSPROC) glad_dlsym_handle(_egl_handle, "eglGetProcAddress");
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if (userptr.get_proc_address_ptr != NULL) {
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version = gladLoadEGLUserPtr(display, glad_egl_get_proc, &userptr);
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}
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if (!version && did_load) {
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glad_close_dlopen_handle(_egl_handle);
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_egl_handle = NULL;
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}
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}
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return version;
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}
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void gladLoaderUnloadEGL() {
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if (_egl_handle != NULL) {
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glad_close_dlopen_handle(_egl_handle);
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_egl_handle = NULL;
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}
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}
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#endif /* GLAD_EGL */
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