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 (void)self;
54 (void)target;
55
56 DBG("glEGLImageTargetTexture2DOES v2 target=%#x img=%p\n", target, image);
57 //TODO: check error - we don't have a way to set gl error
58 android_native_buffer_t* native_buffer = (android_native_buffer_t*)image;
59
60 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) {
61 return;
62 }
63
64 if (native_buffer->common.version != sizeof(android_native_buffer_t)) {
65 return;
66 }
67
68 GET_CONTEXT;
69 DEFINE_AND_VALIDATE_HOST_CONNECTION();
70
71 ctx->override2DTextureTarget(target);
72 rcEnc->rcBindTexture(rcEnc, ((cb_handle_t *)(native_buffer->handle))->hostHandle);
73 ctx->restore2DTextureTarget();
74
75 return;
76 }
77
glEGLImageTargetRenderbufferStorageOES(void * self,GLenum target,GLeglImageOES image)78 void glEGLImageTargetRenderbufferStorageOES(void *self, GLenum target, GLeglImageOES image)
79 {
80 (void)self;
81 (void)target;
82
83 DBG("glEGLImageTargetRenderbufferStorageOES v2 image=%p\n", image);
84 //TODO: check error - we don't have a way to set gl error
85 android_native_buffer_t* native_buffer = (android_native_buffer_t*)image;
86
87 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) {
88 return;
89 }
90
91 if (native_buffer->common.version != sizeof(android_native_buffer_t)) {
92 return;
93 }
94
95 DEFINE_AND_VALIDATE_HOST_CONNECTION();
96 rcEnc->rcBindRenderbuffer(rcEnc, ((cb_handle_t *)(native_buffer->handle))->hostHandle);
97
98 return;
99 }
100
getProcAddress(const char * procname)101 void * getProcAddress(const char * procname)
102 {
103 // search in GL function table
104 for (int i=0; i<gl2_num_funcs; i++) {
105 if (!strcmp(gl2_funcs_by_name[i].name, procname)) {
106 return gl2_funcs_by_name[i].proc;
107 }
108 }
109 return NULL;
110 }
111
finish()112 void finish()
113 {
114 glFinish();
115 }
116
my_glGetString(void * self,GLenum name)117 const GLubyte *my_glGetString (void *self, GLenum name)
118 {
119 (void)self;
120
121 if (s_egl) {
122 return (const GLubyte*)s_egl->getGLString(name);
123 }
124 return NULL;
125 }
126
init()127 void init()
128 {
129 GET_CONTEXT;
130 ctx->glEGLImageTargetTexture2DOES = &glEGLImageTargetTexture2DOES;
131 ctx->glEGLImageTargetRenderbufferStorageOES = &glEGLImageTargetRenderbufferStorageOES;
132 ctx->glGetString = &my_glGetString;
133 }
134
135 extern "C" {
init_emul_gles(EGLClient_eglInterface * eglIface)136 EGLClient_glesInterface * init_emul_gles(EGLClient_eglInterface *eglIface)
137 {
138 s_egl = eglIface;
139
140 if (!s_gl) {
141 s_gl = new EGLClient_glesInterface();
142 s_gl->getProcAddress = getProcAddress;
143 s_gl->finish = finish;
144 s_gl->init = init;
145 }
146
147 return s_gl;
148 }
149 } //extern
150
151
152