Import goldfish HAL sources from devices/generic/goldfish
We import all code here so we can customize and keep in sync with what we do on the host side more easily.
This commit is contained in:
Simon Fels
parent
ddea17253c
commit
23392b9732
196 changed files with 62159 additions and 0 deletions
485
android/opengl/system/egl/eglDisplay.cpp
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485
android/opengl/system/egl/eglDisplay.cpp
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@ -0,0 +1,485 @@
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/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "eglDisplay.h"
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#include "HostConnection.h"
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#include <dlfcn.h>
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static const int systemEGLVersionMajor = 1;
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static const int systemEGLVersionMinor = 4;
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static const char systemEGLVendor[] = "Google Android emulator";
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// list of extensions supported by this EGL implementation
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// NOTE that each extension name should be suffixed with space
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static const char systemStaticEGLExtensions[] =
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"EGL_ANDROID_image_native_buffer "
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"EGL_KHR_fence_sync "
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"EGL_KHR_image_base "
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"EGL_KHR_gl_texture_2d_image ";
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static void *s_gles_lib = NULL;
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static void *s_gles2_lib = NULL;
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// The following function will be called when we (libEGL)
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// gets unloaded
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// At this point we want to unload the gles libraries we
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// might have loaded during initialization
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static void __attribute__ ((destructor)) do_on_unload(void)
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{
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if (s_gles_lib) {
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dlclose(s_gles_lib);
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}
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if (s_gles2_lib) {
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dlclose(s_gles2_lib);
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}
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}
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eglDisplay::eglDisplay() :
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m_initialized(false),
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m_major(0),
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m_minor(0),
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m_hostRendererVersion(0),
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m_numConfigs(0),
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m_numConfigAttribs(0),
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m_attribs(DefaultKeyedVector<EGLint, EGLint>(ATTRIBUTE_NONE)),
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m_configs(NULL),
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m_gles_iface(NULL),
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m_gles2_iface(NULL),
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m_versionString(NULL),
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m_vendorString(NULL),
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m_extensionString(NULL)
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{
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pthread_mutex_init(&m_lock, NULL);
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}
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eglDisplay::~eglDisplay()
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{
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pthread_mutex_destroy(&m_lock);
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}
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bool eglDisplay::initialize(EGLClient_eglInterface *eglIface)
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{
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pthread_mutex_lock(&m_lock);
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if (!m_initialized) {
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//
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// load GLES client API
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//
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#if __LP64__
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m_gles_iface = loadGLESClientAPI("/system/lib64/egl/libGLESv1_CM_emulation.so",
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eglIface,
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&s_gles_lib);
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#else
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m_gles_iface = loadGLESClientAPI("/system/lib/egl/libGLESv1_CM_emulation.so",
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eglIface,
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&s_gles_lib);
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#endif
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if (!m_gles_iface) {
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pthread_mutex_unlock(&m_lock);
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ALOGE("Failed to load gles1 iface");
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return false;
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}
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#ifdef WITH_GLES2
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#if __LP64__
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m_gles2_iface = loadGLESClientAPI("/system/lib64/egl/libGLESv2_emulation.so",
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eglIface,
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&s_gles2_lib);
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#else
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m_gles2_iface = loadGLESClientAPI("/system/lib/egl/libGLESv2_emulation.so",
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eglIface,
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&s_gles2_lib);
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#endif
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// Note that if loading gles2 failed, we can still run with no
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// GLES2 support, having GLES2 is not mandatory.
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#endif
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//
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// establish connection with the host
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//
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HostConnection *hcon = HostConnection::get();
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if (!hcon) {
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pthread_mutex_unlock(&m_lock);
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ALOGE("Failed to establish connection with the host\n");
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return false;
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}
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//
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// get renderControl encoder instance
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//
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renderControl_encoder_context_t *rcEnc = hcon->rcEncoder();
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if (!rcEnc) {
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pthread_mutex_unlock(&m_lock);
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ALOGE("Failed to get renderControl encoder instance");
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return false;
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}
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//
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// Query host reneder and EGL version
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//
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m_hostRendererVersion = rcEnc->rcGetRendererVersion(rcEnc);
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EGLint status = rcEnc->rcGetEGLVersion(rcEnc, &m_major, &m_minor);
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if (status != EGL_TRUE) {
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// host EGL initialization failed !!
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pthread_mutex_unlock(&m_lock);
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return false;
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}
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//
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// Take minimum version beween what we support and what the host support
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//
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if (m_major > systemEGLVersionMajor) {
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m_major = systemEGLVersionMajor;
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m_minor = systemEGLVersionMinor;
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}
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else if (m_major == systemEGLVersionMajor &&
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m_minor > systemEGLVersionMinor) {
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m_minor = systemEGLVersionMinor;
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}
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//
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// Query the host for the set of configs
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//
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m_numConfigs = rcEnc->rcGetNumConfigs(rcEnc, (uint32_t*)&m_numConfigAttribs);
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if (m_numConfigs <= 0 || m_numConfigAttribs <= 0) {
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// just sanity check - should never happen
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pthread_mutex_unlock(&m_lock);
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return false;
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}
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uint32_t nInts = m_numConfigAttribs * (m_numConfigs + 1);
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EGLint tmp_buf[nInts];
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m_configs = new EGLint[nInts-m_numConfigAttribs];
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if (!m_configs) {
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pthread_mutex_unlock(&m_lock);
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return false;
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}
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//EGLint n = rcEnc->rcGetConfigs(rcEnc, nInts*sizeof(EGLint), m_configs);
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EGLint n = rcEnc->rcGetConfigs(rcEnc, nInts*sizeof(EGLint), (GLuint*)tmp_buf);
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if (n != m_numConfigs) {
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pthread_mutex_unlock(&m_lock);
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return false;
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}
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//Fill the attributes vector.
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//The first m_numConfigAttribs values of tmp_buf are the actual attributes enums.
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for (int i=0; i<m_numConfigAttribs; i++) {
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m_attribs.add(tmp_buf[i], i);
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}
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//Copy the actual configs data to m_configs
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memcpy(m_configs, tmp_buf + m_numConfigAttribs, m_numConfigs*m_numConfigAttribs*sizeof(EGLint));
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m_initialized = true;
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}
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pthread_mutex_unlock(&m_lock);
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processConfigs();
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return true;
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}
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void eglDisplay::processConfigs()
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{
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for (intptr_t i=0; i<m_numConfigs; i++) {
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EGLConfig config = (EGLConfig)i;
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//Setup the EGL_NATIVE_VISUAL_ID attribute
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PixelFormat format;
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if (getConfigNativePixelFormat(config, &format)) {
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setConfigAttrib(config, EGL_NATIVE_VISUAL_ID, format);
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}
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}
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}
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void eglDisplay::terminate()
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{
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pthread_mutex_lock(&m_lock);
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if (m_initialized) {
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m_initialized = false;
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delete [] m_configs;
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m_configs = NULL;
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if (m_versionString) {
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free(m_versionString);
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m_versionString = NULL;
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}
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if (m_vendorString) {
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free(m_vendorString);
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m_vendorString = NULL;
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}
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if (m_extensionString) {
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free(m_extensionString);
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m_extensionString = NULL;
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}
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}
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pthread_mutex_unlock(&m_lock);
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}
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EGLClient_glesInterface *eglDisplay::loadGLESClientAPI(const char *libName,
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EGLClient_eglInterface *eglIface,
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void **libHandle)
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{
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void *lib = dlopen(libName, RTLD_NOW);
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if (!lib) {
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ALOGE("Failed to dlopen %s", libName);
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return NULL;
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}
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init_emul_gles_t init_gles_func = (init_emul_gles_t)dlsym(lib,"init_emul_gles");
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if (!init_gles_func) {
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ALOGE("Failed to find init_emul_gles");
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dlclose((void*)lib);
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return NULL;
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}
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*libHandle = lib;
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return (*init_gles_func)(eglIface);
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}
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static char *queryHostEGLString(EGLint name)
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{
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HostConnection *hcon = HostConnection::get();
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if (hcon) {
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renderControl_encoder_context_t *rcEnc = hcon->rcEncoder();
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if (rcEnc) {
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int n = rcEnc->rcQueryEGLString(rcEnc, name, NULL, 0);
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if (n < 0) {
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// allocate space for the string with additional
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// space charachter to be suffixed at the end.
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char *str = (char *)malloc(-n+2);
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n = rcEnc->rcQueryEGLString(rcEnc, name, str, -n);
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if (n > 0) {
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// add extra space at end of string which will be
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// needed later when filtering the extension list.
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strcat(str, " ");
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return str;
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}
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free(str);
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}
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}
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}
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return NULL;
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}
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static bool findExtInList(const char* token, int tokenlen, const char* list)
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{
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const char* p = list;
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while (*p != '\0') {
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const char* q = strchr(p, ' ');
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if (q == NULL) {
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/* should not happen, list must be space-terminated */
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break;
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}
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if (tokenlen == (q - p) && !memcmp(token, p, tokenlen)) {
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return true; /* found it */
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}
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p = q+1;
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}
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return false; /* not found */
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}
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static char *buildExtensionString()
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{
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//Query host extension string
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char *hostExt = queryHostEGLString(EGL_EXTENSIONS);
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if (!hostExt || (hostExt[1] == '\0')) {
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// no extensions on host - only static extension list supported
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return strdup(systemStaticEGLExtensions);
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}
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int n = strlen(hostExt);
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if (n > 0) {
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char *str;
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asprintf(&str,"%s%s", systemStaticEGLExtensions, hostExt);
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free((char*)hostExt);
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return str;
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}
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else {
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free((char*)hostExt);
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return strdup(systemStaticEGLExtensions);
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}
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}
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const char *eglDisplay::queryString(EGLint name)
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{
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if (name == EGL_CLIENT_APIS) {
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return "OpenGL_ES";
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}
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else if (name == EGL_VERSION) {
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pthread_mutex_lock(&m_lock);
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if (m_versionString) {
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pthread_mutex_unlock(&m_lock);
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return m_versionString;
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}
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// build version string
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asprintf(&m_versionString, "%d.%d", m_major, m_minor);
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pthread_mutex_unlock(&m_lock);
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return m_versionString;
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}
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else if (name == EGL_VENDOR) {
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pthread_mutex_lock(&m_lock);
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if (m_vendorString) {
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pthread_mutex_unlock(&m_lock);
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return m_vendorString;
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}
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// build vendor string
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const char *hostVendor = queryHostEGLString(EGL_VENDOR);
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if (hostVendor) {
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asprintf(&m_vendorString, "%s Host: %s",
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systemEGLVendor, hostVendor);
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free((char*)hostVendor);
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}
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else {
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m_vendorString = (char *)systemEGLVendor;
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}
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pthread_mutex_unlock(&m_lock);
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return m_vendorString;
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}
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else if (name == EGL_EXTENSIONS) {
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pthread_mutex_lock(&m_lock);
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if (m_extensionString) {
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pthread_mutex_unlock(&m_lock);
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return m_extensionString;
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}
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// build extension string
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m_extensionString = buildExtensionString();
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pthread_mutex_unlock(&m_lock);
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return m_extensionString;
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}
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else {
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ALOGE("[%s] Unknown name %d\n", __FUNCTION__, name);
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return NULL;
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}
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}
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/* To get the value of attribute <a> of config <c> use the following formula:
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* value = *(m_configs + (int)c*m_numConfigAttribs + a);
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*/
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EGLBoolean eglDisplay::getAttribValue(EGLConfig config, EGLint attribIdx, EGLint * value)
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{
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if (attribIdx == ATTRIBUTE_NONE)
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{
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ALOGE("[%s] Bad attribute idx\n", __FUNCTION__);
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return EGL_FALSE;
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}
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*value = *(m_configs + (intptr_t)config*m_numConfigAttribs + attribIdx);
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return EGL_TRUE;
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}
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EGLBoolean eglDisplay::getConfigAttrib(EGLConfig config, EGLint attrib, EGLint * value)
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{
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//Though it seems that valueFor() is thread-safe, we don't take chanses
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pthread_mutex_lock(&m_lock);
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EGLBoolean ret = getAttribValue(config, m_attribs.valueFor(attrib), value);
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pthread_mutex_unlock(&m_lock);
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return ret;
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}
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void eglDisplay::dumpConfig(EGLConfig config)
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{
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EGLint value = 0;
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DBG("^^^^^^^^^^ dumpConfig %d ^^^^^^^^^^^^^^^^^^", (int)config);
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for (int i=0; i<m_numConfigAttribs; i++) {
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getAttribValue(config, i, &value);
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DBG("{%d}[%d] %d\n", (int)config, i, value);
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}
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}
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/* To set the value of attribute <a> of config <c> use the following formula:
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* *(m_configs + (int)c*m_numConfigAttribs + a) = value;
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*/
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EGLBoolean eglDisplay::setAttribValue(EGLConfig config, EGLint attribIdx, EGLint value)
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{
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if (attribIdx == ATTRIBUTE_NONE)
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{
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ALOGE("[%s] Bad attribute idx\n", __FUNCTION__);
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return EGL_FALSE;
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}
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*(m_configs + (intptr_t)config*m_numConfigAttribs + attribIdx) = value;
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return EGL_TRUE;
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}
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EGLBoolean eglDisplay::setConfigAttrib(EGLConfig config, EGLint attrib, EGLint value)
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{
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//Though it seems that valueFor() is thread-safe, we don't take chanses
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pthread_mutex_lock(&m_lock);
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EGLBoolean ret = setAttribValue(config, m_attribs.valueFor(attrib), value);
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pthread_mutex_unlock(&m_lock);
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return ret;
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}
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EGLBoolean eglDisplay::getConfigNativePixelFormat(EGLConfig config, PixelFormat * format)
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{
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EGLint redSize, blueSize, greenSize, alphaSize;
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if ( !(getAttribValue(config, m_attribs.valueFor(EGL_RED_SIZE), &redSize) &&
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getAttribValue(config, m_attribs.valueFor(EGL_BLUE_SIZE), &blueSize) &&
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getAttribValue(config, m_attribs.valueFor(EGL_GREEN_SIZE), &greenSize) &&
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getAttribValue(config, m_attribs.valueFor(EGL_ALPHA_SIZE), &alphaSize)) )
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{
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ALOGE("Couldn't find value for one of the pixel format attributes");
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return EGL_FALSE;
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}
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//calculate the GL internal format
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if ((redSize==8)&&(greenSize==8)&&(blueSize==8)&&(alphaSize==8)) *format = PIXEL_FORMAT_RGBA_8888; //XXX: BGR?
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else if ((redSize==8)&&(greenSize==8)&&(blueSize==8)&&(alphaSize==0)) *format = PIXEL_FORMAT_RGBX_8888; //XXX or PIXEL_FORMAT_RGB_888
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else if ((redSize==5)&&(greenSize==6)&&(blueSize==5)&&(alphaSize==0)) *format = PIXEL_FORMAT_RGB_565;
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else if ((redSize==5)&&(greenSize==5)&&(blueSize==5)&&(alphaSize==1)) *format = PIXEL_FORMAT_RGBA_5551;
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else if ((redSize==4)&&(greenSize==4)&&(blueSize==4)&&(alphaSize==4)) *format = PIXEL_FORMAT_RGBA_4444;
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else {
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return EGL_FALSE;
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}
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return EGL_TRUE;
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}
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EGLBoolean eglDisplay::getConfigGLPixelFormat(EGLConfig config, GLenum * format)
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{
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EGLint redSize, blueSize, greenSize, alphaSize;
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if ( !(getAttribValue(config, m_attribs.valueFor(EGL_RED_SIZE), &redSize) &&
|
||||
getAttribValue(config, m_attribs.valueFor(EGL_BLUE_SIZE), &blueSize) &&
|
||||
getAttribValue(config, m_attribs.valueFor(EGL_GREEN_SIZE), &greenSize) &&
|
||||
getAttribValue(config, m_attribs.valueFor(EGL_ALPHA_SIZE), &alphaSize)) )
|
||||
{
|
||||
ALOGE("Couldn't find value for one of the pixel format attributes");
|
||||
return EGL_FALSE;
|
||||
}
|
||||
|
||||
//calculate the GL internal format
|
||||
if ((redSize == greenSize) && (redSize == blueSize) &&
|
||||
((redSize == 8) || (redSize == 16) || (redSize == 32)))
|
||||
{
|
||||
if (alphaSize == 0) *format = GL_RGB;
|
||||
else *format = GL_RGBA;
|
||||
}
|
||||
else if ((redSize==5)&&(greenSize==6)&&(blueSize==5)&&(alphaSize==0)) *format = GL_RGB565_OES;
|
||||
else if ((redSize==5)&&(greenSize==5)&&(blueSize==5)&&(alphaSize==1)) *format = GL_RGB5_A1_OES;
|
||||
else if ((redSize==4)&&(greenSize==4)&&(blueSize==4)&&(alphaSize==4)) *format = GL_RGBA4_OES;
|
||||
else return EGL_FALSE;
|
||||
|
||||
return EGL_TRUE;
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue