1 /*
2 * Copyright 2011 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 "EGLClientIface.h"
18 #include "HostConnection.h"
19 #include "GL2Encoder.h"
20 #include "GLES/gl.h"
21 #include "GLES/glext.h"
22 #include "ErrorLog.h"
23 #include "ThreadInfo.h"
24 #include "EGLImage.h"
25
26 //XXX: fix this macro to get the context from fast tls path
27 #define GET_CONTEXT GL2Encoder * ctx = getEGLThreadInfo()->hostConn->gl2Encoder();
28
29 #include "gl2_entry.cpp"
30
31 //The functions table
32 #include "gl2_ftable.h"
33
34
35 static EGLClient_eglInterface * s_egl = NULL;
36 static EGLClient_glesInterface * s_gl = NULL;
37
38 #define DEFINE_AND_VALIDATE_HOST_CONNECTION(ret) \
39 HostConnection* hostCon = HostConnection::get(); \
40 if (!hostCon) { \
41 ALOGE("egl: Failed to get host connection\n"); \
42 return ret; \
43 } \
44 renderControl_encoder_context_t* rcEnc = hostCon->rcEncoder(); \
45 if (!rcEnc) { \
46 ALOGE("egl: Failed to get renderControl encoder context\n"); \
47 return ret; \
48 } \
49 auto* grallocHelper = hostCon->grallocHelper(); \
50 if (!grallocHelper) { \
51 ALOGE("egl: Failed to get grallocHelper\n"); \
52 return ret; \
53 } \
54 auto* anwHelper = hostCon->anwHelper(); \
55 if (!anwHelper) { \
56 ALOGE("egl: Failed to get anwHelper\n"); \
57 return ret; \
58 }
59
60 //GL extensions
glEGLImageTargetTexture2DOES(void * self,GLenum target,GLeglImageOES img)61 void glEGLImageTargetTexture2DOES(void * self, GLenum target, GLeglImageOES img)
62 {
63 (void)self;
64 (void)target;
65
66 DBG("glEGLImageTargetTexture2DOES v2 target=%#x img=%p\n", target, img);
67
68 EGLImage_t *image = (EGLImage_t*)img;
69 GLeglImageOES hostImage = reinterpret_cast<GLeglImageOES>((intptr_t)image->host_egl_image);
70
71 GET_CONTEXT;
72 DEFINE_AND_VALIDATE_HOST_CONNECTION();
73
74 if (image->target == EGL_NATIVE_BUFFER_ANDROID) {
75 EGLClientBuffer buffer = image->buffer;
76
77 if (!anwHelper->isValid(buffer)) {
78 ALOGE("Invalid native buffer.");
79 return;
80 }
81
82 ctx->override2DTextureTarget(target);
83 ctx->associateEGLImage(target, hostImage, image->width, image->height);
84
85 const int hostHandle = anwHelper->getHostHandle(buffer, grallocHelper);
86 rcEnc->rcBindTexture(rcEnc, hostHandle);
87 ctx->restore2DTextureTarget(target);
88 } else if (image->target == EGL_GL_TEXTURE_2D_KHR) {
89 ctx->override2DTextureTarget(target);
90 ctx->associateEGLImage(target, hostImage, image->width, image->height);
91 ctx->m_glEGLImageTargetTexture2DOES_enc(self, GL_TEXTURE_2D, hostImage);
92 ctx->restore2DTextureTarget(target);
93 }
94 }
95
glEGLImageTargetRenderbufferStorageOES(void * self,GLenum target,GLeglImageOES img)96 void glEGLImageTargetRenderbufferStorageOES(void *self, GLenum target, GLeglImageOES img)
97 {
98 (void)self;
99 (void)target;
100
101 DBG("glEGLImageTargetRenderbufferStorageOES v2 image=%p\n", img);
102 //TODO: check error - we don't have a way to set gl error
103 EGLImage_t *image = (EGLImage_t*)img;
104 GLeglImageOES hostImage = reinterpret_cast<GLeglImageOES>((intptr_t)image->host_egl_image);
105
106 if (image->target == EGL_NATIVE_BUFFER_ANDROID) {
107 DEFINE_AND_VALIDATE_HOST_CONNECTION();
108
109 EGLClientBuffer buffer = image->buffer;
110 if (!anwHelper->isValid(buffer)) {
111 ALOGE("Invalid native buffer.");
112 return;
113 }
114
115 GET_CONTEXT;
116 ctx->associateEGLImage(target, hostImage, image->width, image->height);
117
118 const int hostHandle = anwHelper->getHostHandle(buffer, grallocHelper);
119 rcEnc->rcBindRenderbuffer(rcEnc, hostHandle);
120 } else {
121 //TODO
122 }
123
124 return;
125 }
126
getProcAddress(const char * procname)127 void * getProcAddress(const char * procname)
128 {
129 // search in GL function table
130 for (int i=0; i<gl2_num_funcs; i++) {
131 if (!strcmp(gl2_funcs_by_name[i].name, procname)) {
132 return gl2_funcs_by_name[i].proc;
133 }
134 }
135 return NULL;
136 }
137
finish()138 void finish()
139 {
140 glFinish();
141 }
142
getIntegerv(unsigned int pname,int * param)143 void getIntegerv(unsigned int pname, int* param)
144 {
145 glGetIntegerv((GLenum)pname, (GLint*)param);
146 }
147
my_glGetString(void * self,GLenum name)148 const GLubyte *my_glGetString (void *self, GLenum name)
149 {
150 (void)self;
151
152 //see ref in https://www.khronos.org/opengles/sdk/docs/man
153 //name in glGetString can be one of the following five values
154 switch (name) {
155 case GL_VERSION:
156 case GL_VENDOR:
157 case GL_RENDERER:
158 case GL_SHADING_LANGUAGE_VERSION:
159 case GL_EXTENSIONS:
160 if (s_egl) {
161 return (const GLubyte*)s_egl->getGLString(name);
162 }
163 break;
164 default:
165 GET_CONTEXT;
166 ctx->setError(GL_INVALID_ENUM);
167 break;
168 }
169 return NULL;
170 }
171
init()172 void init()
173 {
174 GET_CONTEXT;
175 ctx->m_glEGLImageTargetTexture2DOES_enc = ctx->glEGLImageTargetTexture2DOES;
176 ctx->glEGLImageTargetTexture2DOES = &glEGLImageTargetTexture2DOES;
177 ctx->glEGLImageTargetRenderbufferStorageOES = &glEGLImageTargetRenderbufferStorageOES;
178 ctx->glGetString = &my_glGetString;
179 }
180 extern "C" {
init_emul_gles(EGLClient_eglInterface * eglIface)181 EGLClient_glesInterface * init_emul_gles(EGLClient_eglInterface *eglIface)
182 {
183 s_egl = eglIface;
184
185 if (!s_gl) {
186 s_gl = new EGLClient_glesInterface();
187 s_gl->getProcAddress = getProcAddress;
188 s_gl->finish = finish;
189 s_gl->init = init;
190 s_gl->getIntegerv = getIntegerv;
191 }
192
193 return s_gl;
194 }
195 } //extern
196