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1 /*
2  * Copyright (C) 2016 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #include "unwrap_gles.h"
18 
19 #include <EGL/egl.h>
20 #include <EGL/eglext.h>
21 #include <GLES/gl.h>
22 #include <GLES/glext.h>
23 #include <GLES2/gl2.h>
24 #include <GLES2/gl2ext.h>
25 #include <GLES3/gl3.h>
26 #include <GLES3/gl31.h>
27 #include <GLES3/gl32.h>
28 
29 #include <cutils/log.h>
30 
assertNoGlErrors(const char * apicall)31 void assertNoGlErrors(const char* apicall) {
32     GLenum status = GL_NO_ERROR;
33     GLenum lastError = GL_NO_ERROR;
34     const char* lastErrorName = nullptr;
35     while ((status = glGetError()) != GL_NO_ERROR) {
36         lastError = status;
37         switch (status) {
38         case GL_INVALID_ENUM:
39             ALOGE("GL error:  GL_INVALID_ENUM");
40             lastErrorName = "GL_INVALID_ENUM";
41             break;
42         case GL_INVALID_VALUE:
43             ALOGE("GL error:  GL_INVALID_VALUE");
44             lastErrorName = "GL_INVALID_VALUE";
45             break;
46         case GL_INVALID_OPERATION:
47             ALOGE("GL error:  GL_INVALID_OPERATION");
48             lastErrorName = "GL_INVALID_OPERATION";
49             break;
50         case GL_OUT_OF_MEMORY:
51             ALOGE("GL error:  Out of memory!");
52             lastErrorName = "GL_OUT_OF_MEMORY";
53             break;
54         default:
55             ALOGE("GL error: 0x%x", status);
56             lastErrorName = "UNKNOWN";
57         }
58     }
59     LOG_ALWAYS_FATAL_IF(lastError != GL_NO_ERROR,
60             "%s error! %s (0x%x)", apicall, lastErrorName, lastError);
61 }
62 
63 #define API_ENTRY(x) wrap_##x
64 #define CALL_GL_API(x, ...) x(__VA_ARGS__); assertNoGlErrors(#x)
65 #define CALL_GL_API_RETURN(x, ...) auto ret = x(__VA_ARGS__);\
66     assertNoGlErrors(#x);\
67     return ret
68 
69 extern "C" {
70 #include <gl2_api.in>
71 #include <gl2ext_api.in>
72 
73 // libGLESv2 handles these specially, so they are not in gl2_api.in
74 
API_ENTRY(glGetBooleanv)75 void API_ENTRY(glGetBooleanv)(GLenum pname, GLboolean *data) {
76     CALL_GL_API(glGetBooleanv, pname, data);
77 }
API_ENTRY(glGetFloatv)78 void API_ENTRY(glGetFloatv)(GLenum pname, GLfloat *data) {
79     CALL_GL_API(glGetFloatv, pname, data);
80 }
API_ENTRY(glGetIntegerv)81 void API_ENTRY(glGetIntegerv)(GLenum pname, GLint *data) {
82     CALL_GL_API(glGetIntegerv, pname, data);
83 }
API_ENTRY(glGetString)84 const GLubyte * API_ENTRY(glGetString)(GLenum name) {
85     CALL_GL_API_RETURN(glGetString, name);
86 }
API_ENTRY(glGetStringi)87 const GLubyte * API_ENTRY(glGetStringi)(GLenum name, GLuint index) {
88     CALL_GL_API_RETURN(glGetStringi, name, index);
89 }
API_ENTRY(glGetInteger64v)90 void API_ENTRY(glGetInteger64v)(GLenum pname, GLint64 *data) {
91     CALL_GL_API(glGetInteger64v, pname, data);
92 }
93 }
94