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 DBG("glEGLImageTargetTexture2DOES v1 target=%#x image=%p", 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,
70 ((cb_handle_t *)(native_buffer->handle))->hostHandle);
71 ctx->restore2DTextureTarget();
72
73 return;
74 }
75
glEGLImageTargetRenderbufferStorageOES(void * self,GLenum target,GLeglImageOES image)76 void glEGLImageTargetRenderbufferStorageOES(void *self, GLenum target, GLeglImageOES image)
77 {
78 DBG("glEGLImageTargetRenderbufferStorageOES v1 target=%#x image=%p",
79 target, image);
80 //TODO: check error - we don't have a way to set gl error
81 android_native_buffer_t* native_buffer = (android_native_buffer_t*)image;
82
83 if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) {
84 return;
85 }
86
87 if (native_buffer->common.version != sizeof(android_native_buffer_t)) {
88 return;
89 }
90
91 DEFINE_AND_VALIDATE_HOST_CONNECTION();
92 rcEnc->rcBindRenderbuffer(rcEnc,
93 ((cb_handle_t *)(native_buffer->handle))->hostHandle);
94
95 return;
96 }
97
getProcAddress(const char * procname)98 void * getProcAddress(const char * procname)
99 {
100 // search in GL function table
101 for (int i=0; i<gl_num_funcs; i++) {
102 if (!strcmp(gl_funcs_by_name[i].name, procname)) {
103 return gl_funcs_by_name[i].proc;
104 }
105 }
106 return NULL;
107 }
108
finish()109 void finish()
110 {
111 glFinish();
112 }
113
my_glGetString(void * self,GLenum name)114 const GLubyte *my_glGetString (void *self, GLenum name)
115 {
116 if (s_egl) {
117 return (const GLubyte*)s_egl->getGLString(name);
118 }
119 return NULL;
120 }
121
init()122 void init()
123 {
124 GET_CONTEXT;
125 ctx->set_glEGLImageTargetTexture2DOES(glEGLImageTargetTexture2DOES);
126 ctx->set_glEGLImageTargetRenderbufferStorageOES(glEGLImageTargetRenderbufferStorageOES);
127 ctx->set_glGetString(my_glGetString);
128 }
129
130 extern "C" {
init_emul_gles(EGLClient_eglInterface * eglIface)131 EGLClient_glesInterface * init_emul_gles(EGLClient_eglInterface *eglIface)
132 {
133 s_egl = eglIface;
134
135 if (!s_gl) {
136 s_gl = new EGLClient_glesInterface();
137 s_gl->getProcAddress = getProcAddress;
138 s_gl->finish = finish;
139 s_gl->init = init;
140 }
141
142 return s_gl;
143 }
144 } //extern
145
146
147