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 "GLEncoder.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
27 //XXX: fix this macro to get the context from fast tls path
28 #define GET_CONTEXT GLEncoder * ctx = getEGLThreadInfo()->hostConn->glEncoder();
29
30 #include "gl_entry.cpp"
31
32 //The functions table
33 #include "gl_ftable.h"
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
55 DBG("glEGLImageTargetTexture2DOES v1 target=%#x image=%p", target, image);
56 //TODO: check error - we don't have a way to set gl error
57 android_native_buffer_t* native_buffer = (android_native_buffer_t*)image;
58
59 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) {
60 return;
61 }
62
63 if (native_buffer->common.version != sizeof(android_native_buffer_t)) {
64 return;
65 }
66
67 GET_CONTEXT;
68 DEFINE_AND_VALIDATE_HOST_CONNECTION();
69
70 ctx->override2DTextureTarget(target);
71 rcEnc->rcBindTexture(rcEnc,
72 ((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 v1 target=%#x image=%p",
84 target, image);
85 //TODO: check error - we don't have a way to set gl error
86 android_native_buffer_t* native_buffer = (android_native_buffer_t*)image;
87
88 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) {
89 return;
90 }
91
92 if (native_buffer->common.version != sizeof(android_native_buffer_t)) {
93 return;
94 }
95
96 DEFINE_AND_VALIDATE_HOST_CONNECTION();
97 rcEnc->rcBindRenderbuffer(rcEnc,
98 ((cb_handle_t *)(native_buffer->handle))->hostHandle);
99
100 return;
101 }
102
getProcAddress(const char * procname)103 void * getProcAddress(const char * procname)
104 {
105 // search in GL function table
106 for (int i=0; i<gl_num_funcs; i++) {
107 if (!strcmp(gl_funcs_by_name[i].name, procname)) {
108 return gl_funcs_by_name[i].proc;
109 }
110 }
111 return NULL;
112 }
113
finish()114 void finish()
115 {
116 glFinish();
117 }
118
my_glGetString(void * self,GLenum name)119 const GLubyte *my_glGetString (void *self, GLenum name)
120 {
121 (void)self;
122
123 if (s_egl) {
124 return (const GLubyte*)s_egl->getGLString(name);
125 }
126 return NULL;
127 }
128
init()129 void init()
130 {
131 GET_CONTEXT;
132 ctx->glEGLImageTargetTexture2DOES = &glEGLImageTargetTexture2DOES;
133 ctx->glEGLImageTargetRenderbufferStorageOES = &glEGLImageTargetRenderbufferStorageOES;
134 ctx->glGetString = &my_glGetString;
135 }
136
137 extern "C" {
init_emul_gles(EGLClient_eglInterface * eglIface)138 EGLClient_glesInterface * init_emul_gles(EGLClient_eglInterface *eglIface)
139 {
140 s_egl = eglIface;
141
142 if (!s_gl) {
143 s_gl = new EGLClient_glesInterface();
144 s_gl->getProcAddress = getProcAddress;
145 s_gl->finish = finish;
146 s_gl->init = init;
147 }
148
149 return s_gl;
150 }
151 } //extern
152
153
154