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/*
* Copyright 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "EGLClientIface.h"
#include "HostConnection.h"
#include "GLEncoder.h"
#include "GLES/gl.h"
#include "GLES/glext.h"
#include "ErrorLog.h"
#include "gralloc_cb.h"
#include "ThreadInfo.h"
//XXX: fix this macro to get the context from fast tls path
#define GET_CONTEXT GLEncoder * ctx = getEGLThreadInfo()->hostConn->glEncoder();
#include "gl_entry.cpp"
//The functions table
#include "gl_ftable.h"
static EGLClient_eglInterface * s_egl = NULL;
static EGLClient_glesInterface * s_gl = NULL;
#define DEFINE_AND_VALIDATE_HOST_CONNECTION(ret) \
HostConnection *hostCon = HostConnection::get(); \
if (!hostCon) { \
ALOGE("egl: Failed to get host connection\n"); \
return ret; \
} \
renderControl_encoder_context_t *rcEnc = hostCon->rcEncoder(); \
if (!rcEnc) { \
ALOGE("egl: Failed to get renderControl encoder context\n"); \
return ret; \
}
//GL extensions
void glEGLImageTargetTexture2DOES(void * self, GLenum target, GLeglImageOES image)
{
DBG("glEGLImageTargetTexture2DOES v1 target=%#x image=%p", target, image);
//TODO: check error - we don't have a way to set gl error
android_native_buffer_t* native_buffer = (android_native_buffer_t*)image;
if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) {
return;
}
if (native_buffer->common.version != sizeof(android_native_buffer_t)) {
return;
}
GET_CONTEXT;
DEFINE_AND_VALIDATE_HOST_CONNECTION();
ctx->override2DTextureTarget(target);
rcEnc->rcBindTexture(rcEnc,
((cb_handle_t *)(native_buffer->handle))->hostHandle);
ctx->restore2DTextureTarget();
return;
}
void glEGLImageTargetRenderbufferStorageOES(void *self, GLenum target, GLeglImageOES image)
{
DBG("glEGLImageTargetRenderbufferStorageOES v1 target=%#x image=%p",
target, image);
//TODO: check error - we don't have a way to set gl error
android_native_buffer_t* native_buffer = (android_native_buffer_t*)image;
if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC) {
return;
}
if (native_buffer->common.version != sizeof(android_native_buffer_t)) {
return;
}
DEFINE_AND_VALIDATE_HOST_CONNECTION();
rcEnc->rcBindRenderbuffer(rcEnc,
((cb_handle_t *)(native_buffer->handle))->hostHandle);
return;
}
void * getProcAddress(const char * procname)
{
// search in GL function table
for (int i=0; i<gl_num_funcs; i++) {
if (!strcmp(gl_funcs_by_name[i].name, procname)) {
return gl_funcs_by_name[i].proc;
}
}
return NULL;
}
void finish()
{
glFinish();
}
const GLubyte *my_glGetString (void *self, GLenum name)
{
if (s_egl) {
return (const GLubyte*)s_egl->getGLString(name);
}
return NULL;
}
void init()
{
GET_CONTEXT;
ctx->set_glEGLImageTargetTexture2DOES(glEGLImageTargetTexture2DOES);
ctx->set_glEGLImageTargetRenderbufferStorageOES(glEGLImageTargetRenderbufferStorageOES);
ctx->set_glGetString(my_glGetString);
}
extern "C" {
EGLClient_glesInterface * init_emul_gles(EGLClient_eglInterface *eglIface)
{
s_egl = eglIface;
if (!s_gl) {
s_gl = new EGLClient_glesInterface();
s_gl->getProcAddress = getProcAddress;
s_gl->finish = finish;
s_gl->init = init;
}
return s_gl;
}
} //extern
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