1 /* 2 * Copyright 2014 Google Inc. 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8 9 #include "gl/GrGLInterface.h" 10 #include "gl/GrGLAssembleInterface.h" 11 #include "gl/GrGLUtil.h" 12 13 // Define this to get a prototype for glXGetProcAddress on some systems 14 #define GLX_GLXEXT_PROTOTYPES 1 15 #include <GL/glx.h> 16 17 static GrGLFuncPtr glx_get(void* ctx, const char name[]) { 18 // Avoid calling glXGetProcAddress() for EGL procs. 19 // We don't expect it to ever succeed, but somtimes it returns non-null anyway. 20 if (0 == strncmp(name, "egl", 3)) { 21 return nullptr; 22 } 23 24 SkASSERT(nullptr == ctx); 25 SkASSERT(glXGetCurrentContext()); 26 return glXGetProcAddress(reinterpret_cast<const GLubyte*>(name)); 27 } 28 29 sk_sp<const GrGLInterface> GrGLMakeNativeInterface() { 30 if (nullptr == glXGetCurrentContext()) { 31 return nullptr; 32 } 33 34 return GrGLMakeAssembledInterface(nullptr, glx_get); 35 } 36 37 const GrGLInterface* GrGLCreateNativeInterface() { return GrGLMakeNativeInterface().release(); } 38
