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 "include/gpu/gl/GrGLAssembleInterface.h"
10#include "include/gpu/gl/GrGLInterface.h"
11#include "src/gpu/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
17static 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
29sk_sp<const GrGLInterface> GrGLMakeNativeInterface() {
30 if (nullptr == glXGetCurrentContext()) {
31 return nullptr;
32 }
33
34 return GrGLMakeAssembledInterface(nullptr, glx_get);
35}
36
37const GrGLInterface* GrGLCreateNativeInterface() { return GrGLMakeNativeInterface().release(); }
38