src/type3_AndroidCloud/anbox-master/android/opengl/system/GLESv1/gl.cpp

   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 #include "EGLImage.h"
  26
  27
  28 //XXX: fix this macro to get the context from fast tls path
  29 #define GET_CONTEXT GLEncoder * ctx = getEGLThreadInfo()->hostConn->glEncoder();
  30
  31 #include "gl_entry.cpp"
  32
  33 //The functions table
  34 #include "gl_ftable.h"
  35
  36 static EGLClient_eglInterface * s_egl = NULL;
  37 static EGLClient_glesInterface * s_gl = NULL;
  38
  39 #define DEFINE_AND_VALIDATE_HOST_CONNECTION(ret) \
  40     HostConnection *hostCon = HostConnection::get(); \
  41     if (!hostCon) { \
  42         ALOGE("egl: Failed to get host connection\n"); \
  43         return ret; \
  44     } \
  45     renderControl_encoder_context_t *rcEnc = hostCon->rcEncoder(); \
  46     if (!rcEnc) { \
  47         ALOGE("egl: Failed to get renderControl encoder context\n"); \
  48         return ret; \
  49     }
  50
  51 //GL extensions
  52 void glEGLImageTargetTexture2DOES(void * self, GLenum target, GLeglImageOES img)
  53 {
  54     (void)self;
  55
  56     DBG("glEGLImageTargetTexture2DOES v1 target=%#x img=%p", target, img);
  57
  58     EGLImage_t *image = (EGLImage_t*)img;
  59
  60     if (image->target == EGL_NATIVE_BUFFER_ANDROID) {
  61         //TODO: check error - we don't have a way to set gl error
  62         android_native_buffer_t* native_buffer = image->native_buffer;
  63
  64         if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) {
  65             return;
  66         }
  67
  68         if (native_buffer->common.version != sizeof(android_native_buffer_t)) {
  69             return;
  70         }
  71
  72         GET_CONTEXT;
  73         DEFINE_AND_VALIDATE_HOST_CONNECTION();
  74
  75         ctx->override2DTextureTarget(target);
  76         rcEnc->rcBindTexture(rcEnc,
  77                 ((cb_handle_t *)(native_buffer->handle))->hostHandle);
  78         ctx->restore2DTextureTarget();
  79     }
  80     else if (image->target == EGL_GL_TEXTURE_2D_KHR) {
  81         GET_CONTEXT;
  82         ctx->override2DTextureTarget(target);
  83         GLeglImageOES hostImage = reinterpret_cast<GLeglImageOES>((intptr_t)image->host_egl_image);
  84         ctx->m_glEGLImageTargetTexture2DOES_enc(self, target, hostImage);
  85         ctx->restore2DTextureTarget();
  86     }
  87 }
  88
  89 void glEGLImageTargetRenderbufferStorageOES(void *self, GLenum target, GLeglImageOES image)
  90 {
  91     (void)self;
  92     (void)target;
  93
  94     DBG("glEGLImageTargetRenderbufferStorageOES v1 target=%#x image=%p",
  95             target, image);
  96     //TODO: check error - we don't have a way to set gl error
  97     android_native_buffer_t* native_buffer = (android_native_buffer_t*)image;
  98
  99     if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) {
 100         return;
 101     }
 102
 103     if (native_buffer->common.version != sizeof(android_native_buffer_t)) {
 104         return;
 105     }
 106
 107     DEFINE_AND_VALIDATE_HOST_CONNECTION();
 108     rcEnc->rcBindRenderbuffer(rcEnc,
 109             ((cb_handle_t *)(native_buffer->handle))->hostHandle);
 110
 111     return;
 112 }
 113
 114 void * getProcAddress(const char * procname)
 115 {
 116     // search in GL function table
 117     for (int i=0; i<gl_num_funcs; i++) {
 118         if (!strcmp(gl_funcs_by_name[i].name, procname)) {
 119             return gl_funcs_by_name[i].proc;
 120         }
 121     }
 122     return NULL;
 123 }
 124
 125 void finish()
 126 {
 127     glFinish();
 128 }
 129
 130 const GLubyte *my_glGetString (void *self, GLenum name)
 131 {
 132     (void)self;
 133
 134     if (s_egl) {
 135         return (const GLubyte*)s_egl->getGLString(name);
 136     }
 137     return NULL;
 138 }
 139
 140 void init()
 141 {
 142     GET_CONTEXT;
 143     ctx->m_glEGLImageTargetTexture2DOES_enc = ctx->glEGLImageTargetTexture2DOES;
 144     ctx->glEGLImageTargetTexture2DOES = &glEGLImageTargetTexture2DOES;
 145     ctx->glEGLImageTargetRenderbufferStorageOES = &glEGLImageTargetRenderbufferStorageOES;
 146     ctx->glGetString = &my_glGetString;
 147 }
 148
 149 extern "C" {
 150 EGLClient_glesInterface * init_emul_gles(EGLClient_eglInterface *eglIface)
 151 {
 152     s_egl = eglIface;
 153
 154     if (!s_gl) {
 155         s_gl = new EGLClient_glesInterface();
 156         s_gl->getProcAddress = getProcAddress;
 157         s_gl->finish = finish;
 158         s_gl->init = init;
 159     }
 160
 161     return s_gl;
 162 }
 163 } //extern
 164
 165