mirror of
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8f69f29694
This avoids any assumption from the driver, which would otherwise select a specific platform and potentially mess up everything, resulting usually in a display server failure.
420 lines
16 KiB
C
420 lines
16 KiB
C
/**
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* SPDX-License-Identifier: (WTFPL OR CC0-1.0) AND Apache-2.0
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*/
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#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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#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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#ifdef __cplusplus
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extern "C" {
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#endif
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int GLAD_EGL_VERSION_1_0 = 0;
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int GLAD_EGL_VERSION_1_1 = 0;
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int GLAD_EGL_VERSION_1_2 = 0;
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int GLAD_EGL_VERSION_1_3 = 0;
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int GLAD_EGL_VERSION_1_4 = 0;
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int GLAD_EGL_VERSION_1_5 = 0;
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int GLAD_EGL_ANDROID_blob_cache = 0;
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int GLAD_EGL_EXT_platform_base = 0;
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int GLAD_EGL_KHR_platform_wayland = 0;
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int GLAD_EGL_KHR_platform_x11 = 0;
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PFNEGLBINDAPIPROC glad_eglBindAPI = NULL;
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PFNEGLBINDTEXIMAGEPROC glad_eglBindTexImage = NULL;
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PFNEGLCHOOSECONFIGPROC glad_eglChooseConfig = NULL;
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PFNEGLCLIENTWAITSYNCPROC glad_eglClientWaitSync = NULL;
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PFNEGLCOPYBUFFERSPROC glad_eglCopyBuffers = NULL;
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PFNEGLCREATECONTEXTPROC glad_eglCreateContext = NULL;
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PFNEGLCREATEIMAGEPROC glad_eglCreateImage = NULL;
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PFNEGLCREATEPBUFFERFROMCLIENTBUFFERPROC glad_eglCreatePbufferFromClientBuffer = NULL;
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PFNEGLCREATEPBUFFERSURFACEPROC glad_eglCreatePbufferSurface = NULL;
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PFNEGLCREATEPIXMAPSURFACEPROC glad_eglCreatePixmapSurface = NULL;
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PFNEGLCREATEPLATFORMPIXMAPSURFACEPROC glad_eglCreatePlatformPixmapSurface = NULL;
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PFNEGLCREATEPLATFORMPIXMAPSURFACEEXTPROC glad_eglCreatePlatformPixmapSurfaceEXT = NULL;
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PFNEGLCREATEPLATFORMWINDOWSURFACEPROC glad_eglCreatePlatformWindowSurface = NULL;
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PFNEGLCREATEPLATFORMWINDOWSURFACEEXTPROC glad_eglCreatePlatformWindowSurfaceEXT = NULL;
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PFNEGLCREATESYNCPROC glad_eglCreateSync = NULL;
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PFNEGLCREATEWINDOWSURFACEPROC glad_eglCreateWindowSurface = NULL;
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PFNEGLDESTROYCONTEXTPROC glad_eglDestroyContext = NULL;
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PFNEGLDESTROYIMAGEPROC glad_eglDestroyImage = NULL;
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PFNEGLDESTROYSURFACEPROC glad_eglDestroySurface = NULL;
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PFNEGLDESTROYSYNCPROC glad_eglDestroySync = NULL;
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PFNEGLGETCONFIGATTRIBPROC glad_eglGetConfigAttrib = NULL;
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PFNEGLGETCONFIGSPROC glad_eglGetConfigs = NULL;
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PFNEGLGETCURRENTCONTEXTPROC glad_eglGetCurrentContext = NULL;
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PFNEGLGETCURRENTDISPLAYPROC glad_eglGetCurrentDisplay = NULL;
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PFNEGLGETCURRENTSURFACEPROC glad_eglGetCurrentSurface = NULL;
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PFNEGLGETDISPLAYPROC glad_eglGetDisplay = NULL;
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PFNEGLGETERRORPROC glad_eglGetError = NULL;
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PFNEGLGETPLATFORMDISPLAYPROC glad_eglGetPlatformDisplay = NULL;
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PFNEGLGETPLATFORMDISPLAYEXTPROC glad_eglGetPlatformDisplayEXT = NULL;
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PFNEGLGETPROCADDRESSPROC glad_eglGetProcAddress = NULL;
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PFNEGLGETSYNCATTRIBPROC glad_eglGetSyncAttrib = NULL;
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PFNEGLINITIALIZEPROC glad_eglInitialize = NULL;
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PFNEGLMAKECURRENTPROC glad_eglMakeCurrent = NULL;
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PFNEGLQUERYAPIPROC glad_eglQueryAPI = NULL;
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PFNEGLQUERYCONTEXTPROC glad_eglQueryContext = NULL;
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PFNEGLQUERYSTRINGPROC glad_eglQueryString = NULL;
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PFNEGLQUERYSURFACEPROC glad_eglQuerySurface = NULL;
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PFNEGLRELEASETEXIMAGEPROC glad_eglReleaseTexImage = NULL;
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PFNEGLRELEASETHREADPROC glad_eglReleaseThread = NULL;
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PFNEGLSETBLOBCACHEFUNCSANDROIDPROC glad_eglSetBlobCacheFuncsANDROID = NULL;
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PFNEGLSURFACEATTRIBPROC glad_eglSurfaceAttrib = NULL;
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PFNEGLSWAPBUFFERSPROC glad_eglSwapBuffers = NULL;
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PFNEGLSWAPINTERVALPROC glad_eglSwapInterval = NULL;
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PFNEGLTERMINATEPROC glad_eglTerminate = NULL;
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PFNEGLWAITCLIENTPROC glad_eglWaitClient = NULL;
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PFNEGLWAITGLPROC glad_eglWaitGL = NULL;
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PFNEGLWAITNATIVEPROC glad_eglWaitNative = NULL;
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PFNEGLWAITSYNCPROC glad_eglWaitSync = NULL;
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static void glad_egl_load_EGL_VERSION_1_0( GLADuserptrloadfunc load, void* userptr) {
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if(!GLAD_EGL_VERSION_1_0) return;
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glad_eglChooseConfig = (PFNEGLCHOOSECONFIGPROC) load(userptr, "eglChooseConfig");
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glad_eglCopyBuffers = (PFNEGLCOPYBUFFERSPROC) load(userptr, "eglCopyBuffers");
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glad_eglCreateContext = (PFNEGLCREATECONTEXTPROC) load(userptr, "eglCreateContext");
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glad_eglCreatePbufferSurface = (PFNEGLCREATEPBUFFERSURFACEPROC) load(userptr, "eglCreatePbufferSurface");
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glad_eglCreatePixmapSurface = (PFNEGLCREATEPIXMAPSURFACEPROC) load(userptr, "eglCreatePixmapSurface");
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glad_eglCreateWindowSurface = (PFNEGLCREATEWINDOWSURFACEPROC) load(userptr, "eglCreateWindowSurface");
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glad_eglDestroyContext = (PFNEGLDESTROYCONTEXTPROC) load(userptr, "eglDestroyContext");
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glad_eglDestroySurface = (PFNEGLDESTROYSURFACEPROC) load(userptr, "eglDestroySurface");
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glad_eglGetConfigAttrib = (PFNEGLGETCONFIGATTRIBPROC) load(userptr, "eglGetConfigAttrib");
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glad_eglGetConfigs = (PFNEGLGETCONFIGSPROC) load(userptr, "eglGetConfigs");
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glad_eglGetCurrentDisplay = (PFNEGLGETCURRENTDISPLAYPROC) load(userptr, "eglGetCurrentDisplay");
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glad_eglGetCurrentSurface = (PFNEGLGETCURRENTSURFACEPROC) load(userptr, "eglGetCurrentSurface");
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glad_eglGetDisplay = (PFNEGLGETDISPLAYPROC) load(userptr, "eglGetDisplay");
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glad_eglGetError = (PFNEGLGETERRORPROC) load(userptr, "eglGetError");
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glad_eglGetProcAddress = (PFNEGLGETPROCADDRESSPROC) load(userptr, "eglGetProcAddress");
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glad_eglInitialize = (PFNEGLINITIALIZEPROC) load(userptr, "eglInitialize");
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glad_eglMakeCurrent = (PFNEGLMAKECURRENTPROC) load(userptr, "eglMakeCurrent");
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glad_eglQueryContext = (PFNEGLQUERYCONTEXTPROC) load(userptr, "eglQueryContext");
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glad_eglQueryString = (PFNEGLQUERYSTRINGPROC) load(userptr, "eglQueryString");
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glad_eglQuerySurface = (PFNEGLQUERYSURFACEPROC) load(userptr, "eglQuerySurface");
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glad_eglSwapBuffers = (PFNEGLSWAPBUFFERSPROC) load(userptr, "eglSwapBuffers");
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glad_eglTerminate = (PFNEGLTERMINATEPROC) load(userptr, "eglTerminate");
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glad_eglWaitGL = (PFNEGLWAITGLPROC) load(userptr, "eglWaitGL");
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glad_eglWaitNative = (PFNEGLWAITNATIVEPROC) load(userptr, "eglWaitNative");
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}
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static void glad_egl_load_EGL_VERSION_1_1( GLADuserptrloadfunc load, void* userptr) {
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if(!GLAD_EGL_VERSION_1_1) return;
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glad_eglBindTexImage = (PFNEGLBINDTEXIMAGEPROC) load(userptr, "eglBindTexImage");
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glad_eglReleaseTexImage = (PFNEGLRELEASETEXIMAGEPROC) load(userptr, "eglReleaseTexImage");
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glad_eglSurfaceAttrib = (PFNEGLSURFACEATTRIBPROC) load(userptr, "eglSurfaceAttrib");
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glad_eglSwapInterval = (PFNEGLSWAPINTERVALPROC) load(userptr, "eglSwapInterval");
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}
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static void glad_egl_load_EGL_VERSION_1_2( GLADuserptrloadfunc load, void* userptr) {
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if(!GLAD_EGL_VERSION_1_2) return;
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glad_eglBindAPI = (PFNEGLBINDAPIPROC) load(userptr, "eglBindAPI");
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glad_eglCreatePbufferFromClientBuffer = (PFNEGLCREATEPBUFFERFROMCLIENTBUFFERPROC) load(userptr, "eglCreatePbufferFromClientBuffer");
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glad_eglQueryAPI = (PFNEGLQUERYAPIPROC) load(userptr, "eglQueryAPI");
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glad_eglReleaseThread = (PFNEGLRELEASETHREADPROC) load(userptr, "eglReleaseThread");
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glad_eglWaitClient = (PFNEGLWAITCLIENTPROC) load(userptr, "eglWaitClient");
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}
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static void glad_egl_load_EGL_VERSION_1_4( GLADuserptrloadfunc load, void* userptr) {
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if(!GLAD_EGL_VERSION_1_4) return;
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glad_eglGetCurrentContext = (PFNEGLGETCURRENTCONTEXTPROC) load(userptr, "eglGetCurrentContext");
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}
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static void glad_egl_load_EGL_VERSION_1_5( GLADuserptrloadfunc load, void* userptr) {
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if(!GLAD_EGL_VERSION_1_5) return;
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glad_eglClientWaitSync = (PFNEGLCLIENTWAITSYNCPROC) load(userptr, "eglClientWaitSync");
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glad_eglCreateImage = (PFNEGLCREATEIMAGEPROC) load(userptr, "eglCreateImage");
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glad_eglCreatePlatformPixmapSurface = (PFNEGLCREATEPLATFORMPIXMAPSURFACEPROC) load(userptr, "eglCreatePlatformPixmapSurface");
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glad_eglCreatePlatformWindowSurface = (PFNEGLCREATEPLATFORMWINDOWSURFACEPROC) load(userptr, "eglCreatePlatformWindowSurface");
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glad_eglCreateSync = (PFNEGLCREATESYNCPROC) load(userptr, "eglCreateSync");
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glad_eglDestroyImage = (PFNEGLDESTROYIMAGEPROC) load(userptr, "eglDestroyImage");
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glad_eglDestroySync = (PFNEGLDESTROYSYNCPROC) load(userptr, "eglDestroySync");
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glad_eglGetPlatformDisplay = (PFNEGLGETPLATFORMDISPLAYPROC) load(userptr, "eglGetPlatformDisplay");
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glad_eglGetSyncAttrib = (PFNEGLGETSYNCATTRIBPROC) load(userptr, "eglGetSyncAttrib");
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glad_eglWaitSync = (PFNEGLWAITSYNCPROC) load(userptr, "eglWaitSync");
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}
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static void glad_egl_load_EGL_ANDROID_blob_cache( GLADuserptrloadfunc load, void* userptr) {
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if(!GLAD_EGL_ANDROID_blob_cache) return;
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glad_eglSetBlobCacheFuncsANDROID = (PFNEGLSETBLOBCACHEFUNCSANDROIDPROC) load(userptr, "eglSetBlobCacheFuncsANDROID");
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}
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static void glad_egl_load_EGL_EXT_platform_base( GLADuserptrloadfunc load, void* userptr) {
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if(!GLAD_EGL_EXT_platform_base) return;
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glad_eglCreatePlatformPixmapSurfaceEXT = (PFNEGLCREATEPLATFORMPIXMAPSURFACEEXTPROC) load(userptr, "eglCreatePlatformPixmapSurfaceEXT");
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glad_eglCreatePlatformWindowSurfaceEXT = (PFNEGLCREATEPLATFORMWINDOWSURFACEEXTPROC) load(userptr, "eglCreatePlatformWindowSurfaceEXT");
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glad_eglGetPlatformDisplayEXT = (PFNEGLGETPLATFORMDISPLAYEXTPROC) load(userptr, "eglGetPlatformDisplayEXT");
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}
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static int glad_egl_get_extensions(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 glad_egl_has_extension(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(void *userptr, const char *name) {
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return (GLAD_GNUC_EXTENSION (GLADapiproc (*)(const char *name)) userptr)(name);
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}
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static int glad_egl_find_extensions_egl(EGLDisplay display) {
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const char *extensions;
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if (!glad_egl_get_extensions(display, &extensions)) return 0;
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GLAD_EGL_ANDROID_blob_cache = glad_egl_has_extension(extensions, "EGL_ANDROID_blob_cache");
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GLAD_EGL_EXT_platform_base = glad_egl_has_extension(extensions, "EGL_EXT_platform_base");
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GLAD_EGL_KHR_platform_wayland = glad_egl_has_extension(extensions, "EGL_KHR_platform_wayland");
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GLAD_EGL_KHR_platform_x11 = glad_egl_has_extension(extensions, "EGL_KHR_platform_x11");
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return 1;
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}
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static int glad_egl_find_core_egl(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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#ifdef EGL_VERSION_1_4
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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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#endif
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#ifndef EGL_VERSION_1_5
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if (display == EGL_NO_DISPLAY) {
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return 0;
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}
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#endif
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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(userptr, "eglGetDisplay");
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eglGetCurrentDisplay = (PFNEGLGETCURRENTDISPLAYPROC) load(userptr, "eglGetCurrentDisplay");
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eglQueryString = (PFNEGLQUERYSTRINGPROC) load(userptr, "eglQueryString");
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eglGetError = (PFNEGLGETERRORPROC) load(userptr, "eglGetError");
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if (eglGetDisplay == NULL || eglGetCurrentDisplay == NULL || eglQueryString == NULL || eglGetError == NULL) return 0;
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version = glad_egl_find_core_egl(display);
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if (!version) return 0;
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glad_egl_load_EGL_VERSION_1_0(load, userptr);
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glad_egl_load_EGL_VERSION_1_1(load, userptr);
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glad_egl_load_EGL_VERSION_1_2(load, userptr);
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glad_egl_load_EGL_VERSION_1_4(load, userptr);
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glad_egl_load_EGL_VERSION_1_5(load, userptr);
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if (!glad_egl_find_extensions_egl(display)) return 0;
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glad_egl_load_EGL_ANDROID_blob_cache(load, userptr);
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glad_egl_load_EGL_EXT_platform_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(void *vuserptr, const char* name) {
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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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static void* glad_egl_dlopen_handle(void) {
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#if GLAD_PLATFORM_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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if (_egl_handle == NULL) {
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_egl_handle = glad_get_dlopen_handle(NAMES, sizeof(NAMES) / sizeof(NAMES[0]));
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}
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return _egl_handle;
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}
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static struct _glad_egl_userptr glad_egl_build_userptr(void *handle) {
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struct _glad_egl_userptr userptr;
|
|
userptr.handle = handle;
|
|
userptr.get_proc_address_ptr = (PFNEGLGETPROCADDRESSPROC) glad_dlsym_handle(handle, "eglGetProcAddress");
|
|
return userptr;
|
|
}
|
|
|
|
int gladLoaderLoadEGL(EGLDisplay display) {
|
|
int version = 0;
|
|
void *handle = NULL;
|
|
int did_load = 0;
|
|
struct _glad_egl_userptr userptr;
|
|
|
|
did_load = _egl_handle == NULL;
|
|
handle = glad_egl_dlopen_handle();
|
|
if (handle != NULL) {
|
|
userptr = glad_egl_build_userptr(handle);
|
|
|
|
if (userptr.get_proc_address_ptr != NULL) {
|
|
version = gladLoadEGLUserPtr(display, glad_egl_get_proc, &userptr);
|
|
}
|
|
|
|
if (!version && did_load) {
|
|
gladLoaderUnloadEGL();
|
|
}
|
|
}
|
|
|
|
return version;
|
|
}
|
|
|
|
|
|
void gladLoaderUnloadEGL() {
|
|
if (_egl_handle != NULL) {
|
|
glad_close_dlopen_handle(_egl_handle);
|
|
_egl_handle = NULL;
|
|
}
|
|
}
|
|
|
|
#endif /* GLAD_EGL */
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|