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26025f179e8e51bce376cf7fdad42bcfdcd58fff
android_development/tools/emulator/opengl/system/egl/egl.cpp
Guy Zadikario 0536060b40 emulator opengl: guest/host rendering syncronization. 
Added a return value for rcFlushWindowColorBuffer and
rcUpdateColorBuffer in order to make those calls to block
with a round-trip to the host. This is to make sure that
the color buffer is up-to-date before the flinger use it
for rendering.
Also added a call to the native windows's lock function after
EGL is attached and bound to render on the window. This call
was missed before.

This syncronization can be optimized by removing the round-trip
and insert sync primitive to the stream at every draw command that
reads from a color buffer to make the sync happen on the host
before rendering the color buffer and remove the need for the
guest to wait for that update.

Change-Id: I1c2d8bc407b69663e992a68d5aa755f19bbe0ec3
2011-06-25 16:56:08 +03:00

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/*
* Copyright (C) 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 "HostConnection.h"
#include "ThreadInfo.h"
#include "eglDisplay.h"
#include "egl_ftable.h"
#include <cutils/log.h>
#include "gralloc_cb.h"
#include "GLClientState.h"
#include <private/ui/android_natives_priv.h>
template<typename T>
static T setErrorFunc(GLint error, T returnValue) {
getEGLThreadInfo()->eglError = error;
return returnValue;
}
const char * eglStrError(EGLint err)
{
switch (err){
case EGL_SUCCESS: return "EGL_SUCCESS";
case EGL_NOT_INITIALIZED: return "EGL_NOT_INITIALIZED";
case EGL_BAD_ACCESS: return "EGL_BAD_ACCESS";
case EGL_BAD_ALLOC: return "EGL_BAD_ALLOC";
case EGL_BAD_ATTRIBUTE: return "EGL_BAD_ATTRIBUTE";
case EGL_BAD_CONFIG: return "EGL_BAD_CONFIG";
case EGL_BAD_CONTEXT: return "EGL_BAD_CONTEXT";
case EGL_BAD_CURRENT_SURFACE: return "EGL_BAD_CURRENT_SURFACE";
case EGL_BAD_DISPLAY: return "EGL_BAD_DISPLAY";
case EGL_BAD_MATCH: return "EGL_BAD_MATCH";
case EGL_BAD_NATIVE_PIXMAP: return "EGL_BAD_NATIVE_PIXMAP";
case EGL_BAD_NATIVE_WINDOW: return "EGL_BAD_NATIVE_WINDOW";
case EGL_BAD_PARAMETER: return "EGL_BAD_PARAMETER";
case EGL_BAD_SURFACE: return "EGL_BAD_SURFACE";
case EGL_CONTEXT_LOST: return "EGL_CONTEXT_LOST";
default: return "UNKNOWN";
}
}
#define LOG_EGL_ERRORS 1
#ifdef LOG_EGL_ERRORS
#define setErrorReturn(error, retVal) \
{ \
LOGE("tid %d: %s(%d): error 0x%x (%s)", gettid(), __FUNCTION__, __LINE__, error, eglStrError(error)); \
return setErrorFunc(error, retVal); \
}
#define RETURN_ERROR(ret,err) \
LOGE("tid %d: %s(%d): error 0x%x (%s)", gettid(), __FUNCTION__, __LINE__, err, eglStrError(err)); \
getEGLThreadInfo()->eglError = err; \
return ret;
#else //!LOG_EGL_ERRORS
#define setErrorReturn(error, retVal) return setErrorFunc(error, retVal);
#define RETURN_ERROR(ret,err) \
getEGLThreadInfo()->eglError = err; \
return ret;
#endif //LOG_EGL_ERRORS
#define VALIDATE_CONFIG(cfg,ret) \
if(((int)cfg<0)||((int)cfg>s_display.getNumConfigs())) { \
RETURN_ERROR(ret,EGL_BAD_CONFIG); \
}
#define VALIDATE_DISPLAY(dpy,ret) \
if ((dpy) != (EGLDisplay)&s_display) { \
RETURN_ERROR(ret, EGL_BAD_DISPLAY); \
}
#define VALIDATE_DISPLAY_INIT(dpy,ret) \
VALIDATE_DISPLAY(dpy, ret) \
if (!s_display.initialized()) { \
RETURN_ERROR(ret, EGL_NOT_INITIALIZED); \
}
#define DEFINE_HOST_CONNECTION \
HostConnection *hostCon = HostConnection::get(); \
renderControl_encoder_context_t *rcEnc = (hostCon ? hostCon->rcEncoder() : NULL)
#define DEFINE_AND_VALIDATE_HOST_CONNECTION(ret) \
HostConnection *hostCon = HostConnection::get(); \
if (!hostCon) { \
LOGE("egl: Failed to get host connection\n"); \
return ret; \
} \
renderControl_encoder_context_t *rcEnc = hostCon->rcEncoder(); \
if (!rcEnc) { \
LOGE("egl: Failed to get renderControl encoder context\n"); \
return ret; \
}
#define VALIDATE_CONTEXT_RETURN(context,ret) \
if (!context) { \
RETURN_ERROR(ret,EGL_BAD_CONTEXT); \
}
#define VALIDATE_SURFACE_RETURN(surface, ret) \
if (surface != EGL_NO_SURFACE) { \
egl_surface_t* s( static_cast<egl_surface_t*>(surface) ); \
if (!s->isValid()) \
setErrorReturn(EGL_BAD_SURFACE, EGL_FALSE); \
if (s->dpy != (EGLDisplay)&s_display) \
setErrorReturn(EGL_BAD_DISPLAY, EGL_FALSE); \
}
// ----------------------------------------------------------------------------
//EGLContext_t
struct EGLContext_t {
enum {
IS_CURRENT = 0x00010000,
NEVER_CURRENT = 0x00020000
};
EGLContext_t(EGLDisplay dpy, EGLConfig config);
~EGLContext_t();
uint32_t flags;
EGLDisplay dpy;
EGLConfig config;
EGLSurface read;
EGLSurface draw;
EGLint version;
uint32_t rcContext;
const char* versionString;
const char* vendorString;
const char* rendererString;
const char* extensionString;
GLClientState * getClientState(){ return clientState; }
private:
GLClientState * clientState;
};
EGLContext_t::EGLContext_t(EGLDisplay dpy, EGLConfig config) :
dpy(dpy),
config(config),
read(EGL_NO_SURFACE),
draw(EGL_NO_SURFACE),
rcContext(0),
versionString(NULL),
vendorString(NULL),
rendererString(NULL),
extensionString(NULL)
{
flags = 0;
version = 1;
clientState = new GLClientState();
};
EGLContext_t::~EGLContext_t()
{
delete clientState;
delete [] versionString;
delete [] vendorString;
delete [] rendererString;
delete [] extensionString;
}
// ----------------------------------------------------------------------------
//egl_surface_t
//we don't need to handle depth since it's handled when window created on the host
struct egl_surface_t {
EGLDisplay dpy;
EGLConfig config;
egl_surface_t(EGLDisplay dpy, EGLConfig config, EGLint surfaceType);
virtual ~egl_surface_t();
virtual EGLBoolean rcCreate() = 0;
virtual EGLBoolean rcDestroy() = 0;
virtual EGLBoolean connect() { return EGL_TRUE; }
virtual void disconnect() {}
virtual EGLBoolean swapBuffers() { return EGL_TRUE; }
virtual EGLint getSwapBehavior() const;
void setRcSurface(uint32_t handle){ rcSurface = handle; }
uint32_t getRcSurface(){ return rcSurface; }
virtual EGLBoolean isValid(){ return valid; }
EGLint getSurfaceType(){ return surfaceType; }
void setWidth(EGLint w){ width = w; }
EGLint getWidth(){ return width; }
void setHeight(EGLint h){ height = h; }
EGLint getHeight(){ return height; }
void setTextureFormat(EGLint _texFormat){ texFormat = _texFormat; }
EGLint getTextureFormat(){ return texFormat; }
void setTextureTarget(EGLint _texTarget){ texTarget = _texTarget; }
EGLint getTextureTarget(){ return texTarget; }
private:
//
//Surface attributes
//
EGLint width;
EGLint height;
EGLint texFormat;
EGLint texTarget;
protected:
EGLint surfaceType;
EGLBoolean valid;
uint32_t rcSurface; //handle to surface created via remote control
};
egl_surface_t::egl_surface_t(EGLDisplay dpy, EGLConfig config, EGLint surfaceType)
: dpy(dpy), config(config), surfaceType(surfaceType), valid(EGL_FALSE), rcSurface(0)
{
width = 0;
height = 0;
texFormat = EGL_NO_TEXTURE;
texTarget = EGL_NO_TEXTURE;
}
EGLint egl_surface_t::getSwapBehavior() const {
return EGL_BUFFER_PRESERVED;
}
egl_surface_t::~egl_surface_t()
{
}
// ----------------------------------------------------------------------------
// egl_window_surface_t
struct egl_window_surface_t : public egl_surface_t {
egl_window_surface_t(
EGLDisplay dpy, EGLConfig config, EGLint surfType,
ANativeWindow* window);
~egl_window_surface_t();
virtual EGLBoolean rcCreate();
virtual EGLBoolean rcDestroy();
virtual EGLBoolean connect();
virtual void disconnect();
virtual EGLBoolean swapBuffers();
private:
ANativeWindow* nativeWindow;
android_native_buffer_t* buffer;
};
egl_window_surface_t::egl_window_surface_t (
EGLDisplay dpy, EGLConfig config, EGLint surfType,
ANativeWindow* window)
: egl_surface_t(dpy, config, surfType),
nativeWindow(window),
buffer(NULL)
{
// keep a reference on the window
nativeWindow->common.incRef(&nativeWindow->common);
EGLint w,h;
nativeWindow->query(nativeWindow, NATIVE_WINDOW_WIDTH, &w);
setWidth(w);
nativeWindow->query(nativeWindow, NATIVE_WINDOW_HEIGHT, &h);
setHeight(h);
}
egl_window_surface_t::~egl_window_surface_t() {
nativeWindow->common.decRef(&nativeWindow->common);
}
EGLBoolean egl_window_surface_t::rcCreate()
{
DEFINE_AND_VALIDATE_HOST_CONNECTION(EGL_FALSE);
rcSurface = rcEnc->rcCreateWindowSurface(rcEnc, (uint32_t)config, getWidth(), getHeight());
if (!rcSurface) {
LOGE("rcCreateWindowSurface returned 0");
return EGL_FALSE;
}
valid = EGL_TRUE;
return EGL_TRUE;
}
EGLBoolean egl_window_surface_t::rcDestroy()
{
if (!rcSurface) {
LOGE("rcDestroy called on invalid rcSurface");
return EGL_FALSE;
}
DEFINE_AND_VALIDATE_HOST_CONNECTION(EGL_FALSE);
rcEnc->rcDestroyWindowSurface(rcEnc, rcSurface);
rcSurface = 0;
return EGL_TRUE;
}
EGLBoolean egl_window_surface_t::connect()
{
// dequeue a buffer
if (nativeWindow->dequeueBuffer(nativeWindow, &buffer) != NO_ERROR) {
setErrorReturn(EGL_BAD_ALLOC, EGL_FALSE);
}
buffer->common.incRef(&buffer->common);
// lock the buffer
nativeWindow->lockBuffer(nativeWindow, buffer);
DEFINE_AND_VALIDATE_HOST_CONNECTION(EGL_FALSE);
rcEnc->rcSetWindowColorBuffer(rcEnc, rcSurface, ((cb_handle_t *)(buffer->handle))->hostHandle);
return EGL_TRUE;
}
void egl_window_surface_t::disconnect()
{
if (buffer) {
nativeWindow->queueBuffer(nativeWindow, buffer);
buffer->common.decRef(&buffer->common);
buffer = 0;
}
}
EGLBoolean egl_window_surface_t::swapBuffers()
{
if (!buffer) {
setErrorReturn(EGL_BAD_ACCESS, EGL_FALSE);
}
DEFINE_AND_VALIDATE_HOST_CONNECTION(EGL_FALSE);
rcEnc->rcFlushWindowColorBuffer(rcEnc, rcSurface);
//post the back buffer
nativeWindow->queueBuffer(nativeWindow, buffer);
// dequeue a new buffer
if (nativeWindow->dequeueBuffer(nativeWindow, &buffer)) {
setErrorReturn(EGL_BAD_ALLOC, EGL_FALSE);
}
// lock the buffer
nativeWindow->lockBuffer(nativeWindow, buffer);
rcEnc->rcSetWindowColorBuffer(rcEnc, rcSurface, ((cb_handle_t *)(buffer->handle))->hostHandle);
return EGL_TRUE;
}
// ----------------------------------------------------------------------------
//egl_pbuffer_surface_t
struct egl_pbuffer_surface_t : public egl_surface_t {
GLenum format;
egl_pbuffer_surface_t(
EGLDisplay dpy, EGLConfig config, EGLint surfType,
int32_t w, int32_t h, GLenum format);
virtual ~egl_pbuffer_surface_t();
virtual EGLBoolean rcCreate();
virtual EGLBoolean rcDestroy();
virtual EGLBoolean connect();
uint32_t getRcColorBuffer(){ return rcColorBuffer; }
void setRcColorBuffer(uint32_t colorBuffer){ rcColorBuffer = colorBuffer; }
private:
uint32_t rcColorBuffer;
};
egl_pbuffer_surface_t::egl_pbuffer_surface_t(
EGLDisplay dpy, EGLConfig config, EGLint surfType,
int32_t w, int32_t h, GLenum pixelFormat)
: egl_surface_t(dpy, config, surfType), format(pixelFormat)
{
setWidth(w);
setHeight(h);
}
egl_pbuffer_surface_t::~egl_pbuffer_surface_t()
{
rcColorBuffer = 0;
}
EGLBoolean egl_pbuffer_surface_t::rcCreate()
{
DEFINE_AND_VALIDATE_HOST_CONNECTION(EGL_FALSE);
rcSurface = rcEnc->rcCreateWindowSurface(rcEnc, (uint32_t)config, getWidth(), getHeight());
if (!rcSurface) {
LOGE("rcCreateWindowSurface returned 0");
return EGL_FALSE;
}
rcColorBuffer = rcEnc->rcCreateColorBuffer(rcEnc, getWidth(), getHeight(), format);
if (!rcColorBuffer) {
LOGE("rcCreateColorBuffer returned 0");
return EGL_FALSE;
}
valid = EGL_TRUE;
return EGL_TRUE;
}
EGLBoolean egl_pbuffer_surface_t::rcDestroy()
{
if ((!rcSurface)||(!rcColorBuffer)) {
LOGE("destroyRc called on invalid rcSurface");
return EGL_FALSE;
}
DEFINE_AND_VALIDATE_HOST_CONNECTION(EGL_FALSE);
rcEnc->rcDestroyWindowSurface(rcEnc, rcSurface);
rcEnc->rcDestroyColorBuffer(rcEnc, rcColorBuffer);
rcSurface = 0;
return EGL_TRUE;
}
EGLBoolean egl_pbuffer_surface_t::connect()
{
DEFINE_AND_VALIDATE_HOST_CONNECTION(EGL_FALSE);
rcEnc->rcSetWindowColorBuffer(rcEnc, rcSurface, rcColorBuffer);
return EGL_TRUE;
}
static const char *getGLString(int glEnum)
{
EGLThreadInfo *tInfo = getEGLThreadInfo();
if (!tInfo || !tInfo->currentContext) {
return NULL;
}
const char** strPtr = NULL;
#define GL_VENDOR 0x1F00
#define GL_RENDERER 0x1F01
#define GL_VERSION 0x1F02
#define GL_EXTENSIONS 0x1F03
switch(glEnum) {
case GL_VERSION:
strPtr = &tInfo->currentContext->versionString;
break;
case GL_VENDOR:
strPtr = &tInfo->currentContext->vendorString;
break;
case GL_RENDERER:
strPtr = &tInfo->currentContext->rendererString;
break;
case GL_EXTENSIONS:
strPtr = &tInfo->currentContext->extensionString;
break;
}
if (!strPtr) {
return NULL;
}
if (*strPtr != NULL) {
//
// string is already cached
//
return *strPtr;
}
//
// first query of that string - need to query host
//
DEFINE_AND_VALIDATE_HOST_CONNECTION(NULL);
char *hostStr = NULL;
int n = rcEnc->rcGetGLString(rcEnc, glEnum, NULL, 0);
if (n < 0) {
hostStr = new char[-n+1];
n = rcEnc->rcGetGLString(rcEnc, glEnum, hostStr, -n);
if (n <= 0) {
delete [] hostStr;
hostStr = NULL;
}
}
//
// keep the string in the context and return its value
//
*strPtr = hostStr;
return hostStr;
}
// ----------------------------------------------------------------------------
// The one and only supported display object.
static eglDisplay s_display;
static EGLClient_eglInterface s_eglIface = {
getThreadInfo: getEGLThreadInfo,
getGLString: getGLString
};
#define DBG_FUNC DBG("%s\n", __FUNCTION__)
EGLDisplay eglGetDisplay(EGLNativeDisplayType display_id)
{
//
// we support only EGL_DEFAULT_DISPLAY.
//
if (display_id != EGL_DEFAULT_DISPLAY) {
return EGL_NO_DISPLAY;
}
return (EGLDisplay)&s_display;
}
EGLBoolean eglInitialize(EGLDisplay dpy, EGLint *major, EGLint *minor)
{
VALIDATE_DISPLAY(dpy,EGL_FALSE);
if (!s_display.initialize(&s_eglIface)) {
return EGL_FALSE;
}
*major = s_display.getVersionMajor();
*minor = s_display.getVersionMinor();
return EGL_TRUE;
}
EGLBoolean eglTerminate(EGLDisplay dpy)
{
VALIDATE_DISPLAY_INIT(dpy, EGL_FALSE);
s_display.terminate();
return EGL_TRUE;
}
EGLint eglGetError()
{
return getEGLThreadInfo()->eglError;
}
__eglMustCastToProperFunctionPointerType eglGetProcAddress(const char *procname)
{
// search in EGL function table
for (int i=0; i<egl_num_funcs; i++) {
if (!strcmp(egl_funcs_by_name[i].name, procname)) {
return (__eglMustCastToProperFunctionPointerType)egl_funcs_by_name[i].proc;
}
}
//
// Make sure display is initialized before searching in client APIs
//
if (!s_display.initialized()) {
if (!s_display.initialize(&s_eglIface)) {
return NULL;
}
}
// look in gles
void *proc = s_display.gles_iface()->getProcAddress( procname );
if (proc != NULL) {
return (__eglMustCastToProperFunctionPointerType)proc;
}
// look in gles2
if (s_display.gles2_iface() != NULL) {
proc = s_display.gles2_iface()->getProcAddress( procname );
if (proc != NULL) {
return (__eglMustCastToProperFunctionPointerType)proc;
}
}
// Fail - function not found.
return NULL;
}
const char* eglQueryString(EGLDisplay dpy, EGLint name)
{
VALIDATE_DISPLAY_INIT(dpy, NULL);
return s_display.queryString(name);
}
EGLBoolean eglGetConfigs(EGLDisplay dpy, EGLConfig *configs, EGLint config_size, EGLint *num_config)
{
VALIDATE_DISPLAY_INIT(dpy, NULL);
if(!num_config) {
RETURN_ERROR(EGL_FALSE,EGL_BAD_PARAMETER);
}
GLint numConfigs = s_display.getNumConfigs();
if (!configs) {
*num_config = numConfigs;
return EGL_TRUE;
}
int i=0;
for (i=0 ; i<numConfigs && i<config_size ; i++) {
*configs++ = (EGLConfig)i;
}
*num_config = i;
return EGL_TRUE;
}
EGLBoolean eglChooseConfig(EGLDisplay dpy, const EGLint *attrib_list, EGLConfig *configs, EGLint config_size, EGLint *num_config)
{
VALIDATE_DISPLAY_INIT(dpy, EGL_FALSE);
int attribs_size = 0;
if (attrib_list) {
const EGLint * attrib_p = attrib_list;
while (attrib_p[0] != EGL_NONE) {
attribs_size += 2;
attrib_p += 2;
}
attribs_size++; //for the terminating EGL_NONE
}
DEFINE_AND_VALIDATE_HOST_CONNECTION(EGL_FALSE);
*num_config = rcEnc->rcChooseConfig(rcEnc, (EGLint*)attrib_list, attribs_size * sizeof(EGLint), (uint32_t*)configs, config_size);
return EGL_TRUE;
}
EGLBoolean eglGetConfigAttrib(EGLDisplay dpy, EGLConfig config, EGLint attribute, EGLint *value)
{
VALIDATE_DISPLAY_INIT(dpy, NULL);
VALIDATE_CONFIG(config, EGL_FALSE);
if (s_display.getConfigAttrib(config, attribute, value))
{
return EGL_TRUE;
}
else
{
RETURN_ERROR(EGL_FALSE, EGL_BAD_ATTRIBUTE);
}
}
EGLSurface eglCreateWindowSurface(EGLDisplay dpy, EGLConfig config, EGLNativeWindowType win, const EGLint *attrib_list)
{
VALIDATE_DISPLAY_INIT(dpy, NULL);
VALIDATE_CONFIG(config, EGL_FALSE);
if (win == 0) {
setErrorReturn(EGL_BAD_MATCH, EGL_NO_SURFACE);
}
EGLint surfaceType;
if (s_display.getConfigAttrib(config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) return EGL_FALSE;
if (!(surfaceType & EGL_WINDOW_BIT)) {
setErrorReturn(EGL_BAD_MATCH, EGL_NO_SURFACE);
}
if (static_cast<ANativeWindow*>(win)->common.magic != ANDROID_NATIVE_WINDOW_MAGIC) {
setErrorReturn(EGL_BAD_NATIVE_WINDOW, EGL_NO_SURFACE);
}
egl_surface_t* surface;
surface = new egl_window_surface_t(&s_display, config, surfaceType, static_cast<ANativeWindow*>(win));
if (!surface)
setErrorReturn(EGL_BAD_ALLOC, EGL_NO_SURFACE);
if (!surface->rcCreate()) {
delete surface;
setErrorReturn(EGL_BAD_ALLOC, EGL_NO_SURFACE);
}
return surface;
}
EGLSurface eglCreatePbufferSurface(EGLDisplay dpy, EGLConfig config, const EGLint *attrib_list)
{
VALIDATE_DISPLAY_INIT(dpy, NULL);
VALIDATE_CONFIG(config, EGL_FALSE);
EGLint surfaceType;
if (s_display.getConfigAttrib(config, EGL_SURFACE_TYPE, &surfaceType) == EGL_FALSE) return EGL_FALSE;
if (!(surfaceType & EGL_PBUFFER_BIT)) {
setErrorReturn(EGL_BAD_MATCH, EGL_NO_SURFACE);
}
int32_t w = 0;
int32_t h = 0;
EGLint texFormat = EGL_NO_TEXTURE;
EGLint texTarget = EGL_NO_TEXTURE;
while (attrib_list[0]) {
switch (attrib_list[0]) {
case EGL_WIDTH:
w = attrib_list[1];
break;
case EGL_HEIGHT:
h = attrib_list[1];
break;
case EGL_TEXTURE_FORMAT:
texFormat = attrib_list[1];
break;
case EGL_TEXTURE_TARGET:
texTarget = attrib_list[1];
break;
default:
break;
};
attrib_list+=2;
}
if (((texFormat == EGL_NO_TEXTURE)&&(texTarget != EGL_NO_TEXTURE)) ||
((texFormat != EGL_NO_TEXTURE)&&(texTarget == EGL_NO_TEXTURE))) {
setErrorReturn(EGL_BAD_MATCH, EGL_NO_SURFACE);
}
// TODO: check EGL_TEXTURE_FORMAT - need to support eglBindTexImage
GLenum pixelFormat;
if (s_display.getConfigGLPixelFormat(config, &pixelFormat) == EGL_FALSE)
setErrorReturn(EGL_BAD_MATCH, EGL_NO_SURFACE);
egl_surface_t* surface = new egl_pbuffer_surface_t(dpy, config, surfaceType, w, h, pixelFormat);
if (!surface)
setErrorReturn(EGL_BAD_ALLOC, EGL_NO_SURFACE);
if (!surface->rcCreate()) {
delete surface;
setErrorReturn(EGL_BAD_ALLOC, EGL_NO_SURFACE);
}
//setup attributes
surface->setTextureFormat(texFormat);
surface->setTextureTarget(texTarget);
return surface;
}
EGLSurface eglCreatePixmapSurface(EGLDisplay dpy, EGLConfig config, EGLNativePixmapType pixmap, const EGLint *attrib_list)
{
//XXX: Pixmap not supported. The host cannot render to a pixmap resource
// located on host. In order to support Pixmaps we should either punt
// to s/w rendering -or- let the host render to a buffer that will be
// copied back to guest at some sync point. None of those methods not
// implemented and pixmaps are not used with OpenGL anyway ...
return EGL_NO_SURFACE;
}
EGLBoolean eglDestroySurface(EGLDisplay dpy, EGLSurface eglSurface)
{
VALIDATE_DISPLAY_INIT(dpy, EGL_FALSE);
VALIDATE_SURFACE_RETURN(eglSurface, EGL_FALSE);
egl_surface_t* surface( static_cast<egl_surface_t*>(eglSurface) );
surface->disconnect();
surface->rcDestroy();
delete surface;
return EGL_TRUE;
}
EGLBoolean eglQuerySurface(EGLDisplay dpy, EGLSurface eglSurface, EGLint attribute, EGLint *value)
{
VALIDATE_DISPLAY_INIT(dpy, EGL_FALSE);
VALIDATE_SURFACE_RETURN(eglSurface, EGL_FALSE);
egl_surface_t* surface( static_cast<egl_surface_t*>(eglSurface) );
EGLBoolean ret = EGL_TRUE;
switch (attribute) {
case EGL_CONFIG_ID:
ret = s_display.getConfigAttrib(surface->config, EGL_CONFIG_ID, value);
break;
case EGL_WIDTH:
*value = surface->getWidth();
break;
case EGL_HEIGHT:
*value = surface->getHeight();
break;
case EGL_TEXTURE_FORMAT:
*value = surface->getTextureFormat();
break;
case EGL_TEXTURE_TARGET:
*value = surface->getTextureTarget();
break;
case EGL_SWAP_BEHAVIOR:
*value = surface->getSwapBehavior();
break;
//TODO: complete other attributes
default:
LOGE("eglQuerySurface %x EGL_BAD_ATTRIBUTE", attribute);
ret = setErrorFunc(EGL_BAD_ATTRIBUTE, EGL_FALSE);
break;
}
return ret;
}
EGLBoolean eglBindAPI(EGLenum api)
{
if (api != EGL_OPENGL_ES_API)
setErrorReturn(EGL_BAD_PARAMETER, EGL_FALSE);
return EGL_TRUE;
}
EGLenum eglQueryAPI()
{
return EGL_OPENGL_ES_API;
}
EGLBoolean eglWaitClient()
{
return eglWaitGL();
}
EGLBoolean eglReleaseThread()
{
EGLThreadInfo *tInfo = getEGLThreadInfo();
if (tInfo && tInfo->currentContext) {
return eglMakeCurrent(&s_display, EGL_NO_CONTEXT, EGL_NO_SURFACE, EGL_NO_SURFACE);
}
return EGL_TRUE;
}
EGLSurface eglCreatePbufferFromClientBuffer(EGLDisplay dpy, EGLenum buftype, EGLClientBuffer buffer, EGLConfig config, const EGLint *attrib_list)
{
//TODO
LOGW("%s not implemented", __FUNCTION__);
return 0;
}
EGLBoolean eglSurfaceAttrib(EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint value)
{
//TODO
LOGW("%s not implemented", __FUNCTION__);
return 0;
}
EGLBoolean eglBindTexImage(EGLDisplay dpy, EGLSurface eglSurface, EGLint buffer)
{
VALIDATE_DISPLAY_INIT(dpy, EGL_FALSE);
VALIDATE_SURFACE_RETURN(eglSurface, EGL_FALSE);
if (eglSurface == EGL_NO_SURFACE) {
setErrorReturn(EGL_BAD_SURFACE, EGL_FALSE);
}
if (buffer != EGL_BACK_BUFFER) {
setErrorReturn(EGL_BAD_PARAMETER, EGL_FALSE);
}
egl_surface_t* surface( static_cast<egl_surface_t*>(eglSurface) );
if (surface->getTextureFormat() == EGL_NO_TEXTURE) {
setErrorReturn(EGL_BAD_MATCH, EGL_FALSE);
}
if (!(surface->getSurfaceType() & EGL_PBUFFER_BIT)) {
setErrorReturn(EGL_BAD_SURFACE, EGL_FALSE);
}
//It's now safe to cast to pbuffer surface
egl_pbuffer_surface_t* pbSurface = (egl_pbuffer_surface_t*)surface;
DEFINE_AND_VALIDATE_HOST_CONNECTION(EGL_FALSE);
rcEnc->rcBindTexture(rcEnc, pbSurface->getRcColorBuffer());
return GL_TRUE;
}
EGLBoolean eglReleaseTexImage(EGLDisplay dpy, EGLSurface surface, EGLint buffer)
{
//TODO
LOGW("%s not implemented", __FUNCTION__);
return 0;
}
EGLBoolean eglSwapInterval(EGLDisplay dpy, EGLint interval)
{
VALIDATE_DISPLAY_INIT(dpy, EGL_FALSE);
DEFINE_AND_VALIDATE_HOST_CONNECTION(EGL_FALSE);
rcEnc->rcFBSetSwapInterval(rcEnc, interval); //TODO: implement on the host
return EGL_TRUE;
}
EGLContext eglCreateContext(EGLDisplay dpy, EGLConfig config, EGLContext share_context, const EGLint *attrib_list)
{
VALIDATE_DISPLAY_INIT(dpy, EGL_NO_CONTEXT);
VALIDATE_CONFIG(config, EGL_NO_CONTEXT);
EGLint version = 1; //default
while (attrib_list && attrib_list[0]) {
if (attrib_list[0] == EGL_CONTEXT_CLIENT_VERSION) version = attrib_list[1];
attrib_list+=2;
}
uint32_t rcShareCtx = 0;
if (share_context) {
EGLContext_t * shareCtx = static_cast<EGLContext_t*>(share_context);
rcShareCtx = shareCtx->rcContext;
if (shareCtx->dpy != dpy)
setErrorReturn(EGL_BAD_MATCH, EGL_NO_CONTEXT);
}
DEFINE_AND_VALIDATE_HOST_CONNECTION(EGL_NO_CONTEXT);
uint32_t rcContext = rcEnc->rcCreateContext(rcEnc, (uint32_t)config, rcShareCtx, version);
if (!rcContext) {
LOGE("rcCreateContext returned 0");
setErrorReturn(EGL_BAD_ALLOC, EGL_NO_CONTEXT);
}
EGLContext_t * context = new EGLContext_t(dpy, config);
if (!context)
setErrorReturn(EGL_BAD_ALLOC, EGL_NO_CONTEXT);
context->version = version;
context->rcContext = rcContext;
return context;
}
EGLBoolean eglDestroyContext(EGLDisplay dpy, EGLContext ctx)
{
VALIDATE_DISPLAY_INIT(dpy, EGL_FALSE);
VALIDATE_CONTEXT_RETURN(ctx, EGL_FALSE);
EGLContext_t * context = static_cast<EGLContext_t*>(ctx);
if (getEGLThreadInfo()->currentContext == context)
{
eglMakeCurrent(dpy, EGL_NO_CONTEXT, EGL_NO_SURFACE, EGL_NO_SURFACE);
}
if (context->rcContext) {
DEFINE_AND_VALIDATE_HOST_CONNECTION(EGL_FALSE);
rcEnc->rcDestroyContext(rcEnc, context->rcContext);
context->rcContext = 0;
}
delete context;
return EGL_TRUE;
}
EGLBoolean eglMakeCurrent(EGLDisplay dpy, EGLSurface draw, EGLSurface read, EGLContext ctx)
{
VALIDATE_DISPLAY_INIT(dpy, EGL_FALSE);
VALIDATE_SURFACE_RETURN(draw, EGL_FALSE);
VALIDATE_SURFACE_RETURN(read, EGL_FALSE);
if ((read == EGL_NO_SURFACE && draw == EGL_NO_SURFACE) && (ctx != EGL_NO_CONTEXT))
setErrorReturn(EGL_BAD_MATCH, EGL_FALSE);
if ((read != EGL_NO_SURFACE || draw != EGL_NO_SURFACE) && (ctx == EGL_NO_CONTEXT))
setErrorReturn(EGL_BAD_MATCH, EGL_FALSE);
EGLContext_t * context = static_cast<EGLContext_t*>(ctx);
uint32_t ctxHandle = (context) ? context->rcContext : 0;
egl_surface_t * drawSurf = static_cast<egl_surface_t *>(draw);
uint32_t drawHandle = (drawSurf) ? drawSurf->getRcSurface() : 0;
egl_surface_t * readSurf = static_cast<egl_surface_t *>(read);
uint32_t readHandle = (readSurf) ? readSurf->getRcSurface() : 0;
//
// Nothing to do if no binding change has made
//
EGLThreadInfo *tInfo = getEGLThreadInfo();
if (tInfo->currentContext == context &&
context &&
context->draw == draw &&
context->read == read) {
return EGL_TRUE;
}
if (context && (context->flags & EGLContext_t::IS_CURRENT) && (context != tInfo->currentContext)) {
//context is current to another thread
setErrorReturn(EGL_BAD_ACCESS, EGL_FALSE);
}
DEFINE_AND_VALIDATE_HOST_CONNECTION(EGL_FALSE);
if (rcEnc->rcMakeCurrent(rcEnc, ctxHandle, drawHandle, readHandle) == EGL_FALSE) {
LOGE("rcMakeCurrent returned EGL_FALSE");
setErrorReturn(EGL_BAD_CONTEXT, EGL_FALSE);
}
//
// Disconnect from the previous drawable
//
if (tInfo->currentContext && tInfo->currentContext->draw) {
egl_surface_t * prevDrawSurf = static_cast<egl_surface_t *>(tInfo->currentContext->draw);
prevDrawSurf->disconnect();
}
//Now make the local bind
if (context) {
context->draw = draw;
context->read = read;
context->flags |= EGLContext_t::IS_CURRENT;
//set the client state
hostCon->glEncoder()->setClientState(context->getClientState());
}
if (tInfo->currentContext)
tInfo->currentContext->flags &= ~EGLContext_t::IS_CURRENT;
//Now make current
tInfo->currentContext = context;
//Check maybe we need to init the encoder, if it's first eglMakeCurrent
if (tInfo->currentContext) {
if (!hostCon->glEncoder()->isInitialized()) {
if (tInfo->currentContext->version == 2) {
s_display.gles2_iface()->init();
}
else {
s_display.gles_iface()->init();
}
hostCon->glEncoder()->setInitialized();
}
}
//connect the color buffer
if (drawSurf)
drawSurf->connect();
return EGL_TRUE;
}
EGLContext eglGetCurrentContext()
{
return getEGLThreadInfo()->currentContext;
}
EGLSurface eglGetCurrentSurface(EGLint readdraw)
{
EGLContext_t * context = getEGLThreadInfo()->currentContext;
if (!context)
return EGL_NO_SURFACE; //not an error
switch (readdraw) {
case EGL_READ:
return context->read;
case EGL_DRAW:
return context->draw;
default:
setErrorReturn(EGL_BAD_PARAMETER, EGL_NO_SURFACE);
}
}
EGLDisplay eglGetCurrentDisplay()
{
EGLContext_t * context = getEGLThreadInfo()->currentContext;
if (!context)
return EGL_NO_DISPLAY; //not an error
return context->dpy;
}
EGLBoolean eglQueryContext(EGLDisplay dpy, EGLContext ctx, EGLint attribute, EGLint *value)
{
VALIDATE_DISPLAY_INIT(dpy, EGL_FALSE);
VALIDATE_CONTEXT_RETURN(ctx, EGL_FALSE);
EGLContext_t * context = static_cast<EGLContext_t*>(ctx);
EGLBoolean ret = EGL_TRUE;
switch (attribute) {
case EGL_CONFIG_ID:
ret = s_display.getConfigAttrib(context->config, EGL_CONFIG_ID, value);
break;
case EGL_CONTEXT_CLIENT_TYPE:
*value = EGL_OPENGL_ES_API;
break;
case EGL_CONTEXT_CLIENT_VERSION:
*value = context->version;
break;
case EGL_RENDER_BUFFER:
if (!context->draw)
*value = EGL_NONE;
else
*value = EGL_BACK_BUFFER; //single buffer not supported
break;
default:
LOGE("eglQueryContext %x EGL_BAD_ATTRIBUTE", attribute);
setErrorReturn(EGL_BAD_ATTRIBUTE, EGL_FALSE);
break;
}
return ret;
}
EGLBoolean eglWaitGL()
{
EGLThreadInfo *tInfo = getEGLThreadInfo();
if (!tInfo || !tInfo->currentContext) {
return EGL_FALSE;
}
if (tInfo->currentContext->version == 2) {
s_display.gles2_iface()->finish();
}
else {
s_display.gles_iface()->finish();
}
return EGL_TRUE;
}
EGLBoolean eglWaitNative(EGLint engine)
{
return EGL_TRUE;
}
EGLBoolean eglSwapBuffers(EGLDisplay dpy, EGLSurface eglSurface)
{
VALIDATE_DISPLAY_INIT(dpy, EGL_FALSE);
if (eglSurface == EGL_NO_SURFACE)
setErrorReturn(EGL_BAD_SURFACE, EGL_FALSE);
DEFINE_AND_VALIDATE_HOST_CONNECTION(EGL_FALSE);
egl_surface_t* d = static_cast<egl_surface_t*>(eglSurface);
if (!d->isValid())
setErrorReturn(EGL_BAD_SURFACE, EGL_FALSE);
if (d->dpy != dpy)
setErrorReturn(EGL_BAD_DISPLAY, EGL_FALSE);
// post the surface
d->swapBuffers();
hostCon->flush();
return EGL_TRUE;
}
EGLBoolean eglCopyBuffers(EGLDisplay dpy, EGLSurface surface, EGLNativePixmapType target)
{
//TODO :later
return 0;
}
EGLBoolean eglLockSurfaceKHR(EGLDisplay display, EGLSurface surface, const EGLint *attrib_list)
{
//TODO later
return 0;
}
EGLBoolean eglUnlockSurfaceKHR(EGLDisplay display, EGLSurface surface)
{
//TODO later
return 0;
}
EGLImageKHR eglCreateImageKHR(EGLDisplay dpy, EGLContext ctx, EGLenum target, EGLClientBuffer buffer, const EGLint *attrib_list)
{
VALIDATE_DISPLAY_INIT(dpy, EGL_NO_IMAGE_KHR);
if (ctx != EGL_NO_CONTEXT) {
setErrorReturn(EGL_BAD_CONTEXT, EGL_NO_IMAGE_KHR);
}
if (target != EGL_NATIVE_BUFFER_ANDROID) {
setErrorReturn(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR);
}
android_native_buffer_t* native_buffer = (android_native_buffer_t*)buffer;
if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC)
setErrorReturn(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR);
if (native_buffer->common.version != sizeof(android_native_buffer_t))
setErrorReturn(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR);
switch (native_buffer->format) {
case HAL_PIXEL_FORMAT_RGBA_8888:
case HAL_PIXEL_FORMAT_RGBX_8888:
case HAL_PIXEL_FORMAT_RGB_888:
case HAL_PIXEL_FORMAT_RGB_565:
case HAL_PIXEL_FORMAT_BGRA_8888:
case HAL_PIXEL_FORMAT_RGBA_5551:
case HAL_PIXEL_FORMAT_RGBA_4444:
break;
default:
setErrorReturn(EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR);
}
native_buffer->common.incRef(&native_buffer->common);
return (EGLImageKHR)native_buffer;
}
EGLBoolean eglDestroyImageKHR(EGLDisplay dpy, EGLImageKHR img)
{
VALIDATE_DISPLAY_INIT(dpy, EGL_FALSE);
android_native_buffer_t* native_buffer = (android_native_buffer_t*)img;
if (native_buffer->common.magic != ANDROID_NATIVE_BUFFER_MAGIC)
setErrorReturn(EGL_BAD_PARAMETER, EGL_FALSE);
if (native_buffer->common.version != sizeof(android_native_buffer_t))
setErrorReturn(EGL_BAD_PARAMETER, EGL_FALSE);
native_buffer->common.decRef(&native_buffer->common);
return EGL_TRUE;
}
EGLSyncKHR eglCreateSyncKHR(EGLDisplay dpy, EGLenum type, const EGLint *attrib_list)
{
//TODO later
return 0;
}
EGLBoolean eglDestroySyncKHR(EGLDisplay dpy, EGLSyncKHR sync)
{
//TODO later
return 0;
}
EGLint eglClientWaitSyncKHR(EGLDisplay dpy, EGLSyncKHR sync, EGLint flags, EGLTimeKHR timeout)
{
//TODO
return 0;
}
EGLBoolean eglSignalSyncKHR(EGLDisplay dpy, EGLSyncKHR sync, EGLenum mode)
{
//TODO later
return 0;
}
EGLBoolean eglGetSyncAttribKHR(EGLDisplay dpy, EGLSyncKHR sync, EGLint attribute, EGLint *value)
{
//TODO later
return 0;
}
EGLBoolean eglSetSwapRectangleANDROID(EGLDisplay dpy, EGLSurface draw, EGLint left, EGLint top, EGLint width, EGLint height)
{
//TODO later
return 0;
}
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