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 "gralloc_cb.h"
24 #include "ThreadInfo.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
50 //GL extensions
glEGLImageTargetTexture2DOES(void * self,GLenum target,GLeglImageOES image)51 void glEGLImageTargetTexture2DOES(void * self, GLenum target, GLeglImageOES image)
52 {
53 DBG("glEGLImageTargetTexture2DOES v2 target=%#x img=%p\n", target, image);
54 //TODO: check error - we don't have a way to set gl error
55 android_native_buffer_t* native_buffer = (android_native_buffer_t*)image;
56
57 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) {
58 return;
59 }
60
61 if (native_buffer->common.version != sizeof(android_native_buffer_t)) {
62 return;
63 }
64
65 GET_CONTEXT;
66 DEFINE_AND_VALIDATE_HOST_CONNECTION();
67
68 ctx->override2DTextureTarget(target);
69 rcEnc->rcBindTexture(rcEnc, ((cb_handle_t *)(native_buffer->handle))->hostHandle);
70 ctx->restore2DTextureTarget();
71
72 return;
73 }
74
glEGLImageTargetRenderbufferStorageOES(void * self,GLenum target,GLeglImageOES image)75 void glEGLImageTargetRenderbufferStorageOES(void *self, GLenum target, GLeglImageOES image)
76 {
77 DBG("glEGLImageTargetRenderbufferStorageOES v2 image=%p\n", image);
78 //TODO: check error - we don't have a way to set gl error
79 android_native_buffer_t* native_buffer = (android_native_buffer_t*)image;
80
81 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) {
82 return;
83 }
84
85 if (native_buffer->common.version != sizeof(android_native_buffer_t)) {
86 return;
87 }
88
89 DEFINE_AND_VALIDATE_HOST_CONNECTION();
90 rcEnc->rcBindRenderbuffer(rcEnc, ((cb_handle_t *)(native_buffer->handle))->hostHandle);
91
92 return;
93 }
94
getProcAddress(const char * procname)95 void * getProcAddress(const char * procname)
96 {
97 // search in GL function table
98 for (int i=0; i<gl2_num_funcs; i++) {
99 if (!strcmp(gl2_funcs_by_name[i].name, procname)) {
100 return gl2_funcs_by_name[i].proc;
101 }
102 }
103 return NULL;
104 }
105
finish()106 void finish()
107 {
108 glFinish();
109 }
110
my_glGetString(void * self,GLenum name)111 const GLubyte *my_glGetString (void *self, GLenum name)
112 {
113 if (s_egl) {
114 return (const GLubyte*)s_egl->getGLString(name);
115 }
116 return NULL;
117 }
118
init()119 void init()
120 {
121 GET_CONTEXT;
122 ctx->set_glEGLImageTargetTexture2DOES(glEGLImageTargetTexture2DOES);
123 ctx->set_glEGLImageTargetRenderbufferStorageOES(glEGLImageTargetRenderbufferStorageOES);
124 ctx->set_glGetString(my_glGetString);
125 }
126
127 extern "C" {
init_emul_gles(EGLClient_eglInterface * eglIface)128 EGLClient_glesInterface * init_emul_gles(EGLClient_eglInterface *eglIface)
129 {
130 s_egl = eglIface;
131
132 if (!s_gl) {
133 s_gl = new EGLClient_glesInterface();
134 s_gl->getProcAddress = getProcAddress;
135 s_gl->finish = finish;
136 s_gl->init = init;
137 }
138
139 return s_gl;
140 }
141 } //extern
142
143
144