--- /dev/null
+/*
+* 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 "eglDisplay.h"
+#include "HostConnection.h"
+#include <dlfcn.h>
+
+static const int systemEGLVersionMajor = 1;
+static const int systemEGLVersionMinor = 4;
+static const char systemEGLVendor[] = "Google Android emulator";
+
+// list of extensions supported by this EGL implementation
+// NOTE that each extension name should be suffixed with space
+static const char systemStaticEGLExtensions[] =
+ "EGL_ANDROID_image_native_buffer "
+ "EGL_KHR_fence_sync "
+ "EGL_KHR_image_base "
+ "EGL_KHR_gl_texture_2d_image ";
+
+static void *s_gles_lib = NULL;
+static void *s_gles2_lib = NULL;
+
+// The following function will be called when we (libEGL)
+// gets unloaded
+// At this point we want to unload the gles libraries we
+// might have loaded during initialization
+static void __attribute__ ((destructor)) do_on_unload(void)
+{
+ if (s_gles_lib) {
+ dlclose(s_gles_lib);
+ }
+
+ if (s_gles2_lib) {
+ dlclose(s_gles2_lib);
+ }
+}
+
+eglDisplay::eglDisplay() :
+ m_initialized(false),
+ m_major(0),
+ m_minor(0),
+ m_hostRendererVersion(0),
+ m_numConfigs(0),
+ m_numConfigAttribs(0),
+ m_attribs(DefaultKeyedVector<EGLint, EGLint>(ATTRIBUTE_NONE)),
+ m_configs(NULL),
+ m_gles_iface(NULL),
+ m_gles2_iface(NULL),
+ m_versionString(NULL),
+ m_vendorString(NULL),
+ m_extensionString(NULL)
+{
+ pthread_mutex_init(&m_lock, NULL);
+}
+
+eglDisplay::~eglDisplay()
+{
+ pthread_mutex_destroy(&m_lock);
+}
+
+bool eglDisplay::initialize(EGLClient_eglInterface *eglIface)
+{
+ pthread_mutex_lock(&m_lock);
+ if (!m_initialized) {
+
+ //
+ // load GLES client API
+ //
+#if __LP64__
+ m_gles_iface = loadGLESClientAPI("/system/lib64/egl/libGLESv1_CM_emulation.so",
+ eglIface,
+ &s_gles_lib);
+#else
+ m_gles_iface = loadGLESClientAPI("/system/lib/egl/libGLESv1_CM_emulation.so",
+ eglIface,
+ &s_gles_lib);
+#endif
+ if (!m_gles_iface) {
+ pthread_mutex_unlock(&m_lock);
+ ALOGE("Failed to load gles1 iface");
+ return false;
+ }
+
+#ifdef WITH_GLES2
+#if __LP64__
+ m_gles2_iface = loadGLESClientAPI("/system/lib64/egl/libGLESv2_emulation.so",
+ eglIface,
+ &s_gles2_lib);
+#else
+ m_gles2_iface = loadGLESClientAPI("/system/lib/egl/libGLESv2_emulation.so",
+ eglIface,
+ &s_gles2_lib);
+#endif
+ // Note that if loading gles2 failed, we can still run with no
+ // GLES2 support, having GLES2 is not mandatory.
+#endif
+
+ //
+ // establish connection with the host
+ //
+ HostConnection *hcon = HostConnection::get();
+ if (!hcon) {
+ pthread_mutex_unlock(&m_lock);
+ ALOGE("Failed to establish connection with the host\n");
+ return false;
+ }
+
+ //
+ // get renderControl encoder instance
+ //
+ renderControl_encoder_context_t *rcEnc = hcon->rcEncoder();
+ if (!rcEnc) {
+ pthread_mutex_unlock(&m_lock);
+ ALOGE("Failed to get renderControl encoder instance");
+ return false;
+ }
+
+ //
+ // Query host reneder and EGL version
+ //
+ m_hostRendererVersion = rcEnc->rcGetRendererVersion(rcEnc);
+ EGLint status = rcEnc->rcGetEGLVersion(rcEnc, &m_major, &m_minor);
+ if (status != EGL_TRUE) {
+ // host EGL initialization failed !!
+ pthread_mutex_unlock(&m_lock);
+ return false;
+ }
+
+ //
+ // Take minimum version beween what we support and what the host support
+ //
+ if (m_major > systemEGLVersionMajor) {
+ m_major = systemEGLVersionMajor;
+ m_minor = systemEGLVersionMinor;
+ }
+ else if (m_major == systemEGLVersionMajor &&
+ m_minor > systemEGLVersionMinor) {
+ m_minor = systemEGLVersionMinor;
+ }
+
+ //
+ // Query the host for the set of configs
+ //
+ m_numConfigs = rcEnc->rcGetNumConfigs(rcEnc, (uint32_t*)&m_numConfigAttribs);
+ if (m_numConfigs <= 0 || m_numConfigAttribs <= 0) {
+ // just sanity check - should never happen
+ pthread_mutex_unlock(&m_lock);
+ return false;
+ }
+
+ uint32_t nInts = m_numConfigAttribs * (m_numConfigs + 1);
+ EGLint tmp_buf[nInts];
+ m_configs = new EGLint[nInts-m_numConfigAttribs];
+ if (!m_configs) {
+ pthread_mutex_unlock(&m_lock);
+ return false;
+ }
+
+ //EGLint n = rcEnc->rcGetConfigs(rcEnc, nInts*sizeof(EGLint), m_configs);
+ EGLint n = rcEnc->rcGetConfigs(rcEnc, nInts*sizeof(EGLint), (GLuint*)tmp_buf);
+ if (n != m_numConfigs) {
+ pthread_mutex_unlock(&m_lock);
+ return false;
+ }
+
+ //Fill the attributes vector.
+ //The first m_numConfigAttribs values of tmp_buf are the actual attributes enums.
+ for (int i=0; i<m_numConfigAttribs; i++) {
+ m_attribs.add(tmp_buf[i], i);
+ }
+
+ //Copy the actual configs data to m_configs
+ memcpy(m_configs, tmp_buf + m_numConfigAttribs, m_numConfigs*m_numConfigAttribs*sizeof(EGLint));
+
+ m_initialized = true;
+ }
+ pthread_mutex_unlock(&m_lock);
+
+ processConfigs();
+
+ return true;
+}
+
+void eglDisplay::processConfigs()
+{
+ for (intptr_t i=0; i<m_numConfigs; i++) {
+ EGLConfig config = (EGLConfig)i;
+ //Setup the EGL_NATIVE_VISUAL_ID attribute
+ PixelFormat format;
+ if (getConfigNativePixelFormat(config, &format)) {
+ setConfigAttrib(config, EGL_NATIVE_VISUAL_ID, format);
+ }
+ }
+}
+
+void eglDisplay::terminate()
+{
+ pthread_mutex_lock(&m_lock);
+ if (m_initialized) {
+ m_initialized = false;
+ delete [] m_configs;
+ m_configs = NULL;
+
+ if (m_versionString) {
+ free(m_versionString);
+ m_versionString = NULL;
+ }
+ if (m_vendorString) {
+ free(m_vendorString);
+ m_vendorString = NULL;
+ }
+ if (m_extensionString) {
+ free(m_extensionString);
+ m_extensionString = NULL;
+ }
+ }
+ pthread_mutex_unlock(&m_lock);
+}
+
+EGLClient_glesInterface *eglDisplay::loadGLESClientAPI(const char *libName,
+ EGLClient_eglInterface *eglIface,
+ void **libHandle)
+{
+ void *lib = dlopen(libName, RTLD_NOW);
+ if (!lib) {
+ ALOGE("Failed to dlopen %s", libName);
+ return NULL;
+ }
+
+ init_emul_gles_t init_gles_func = (init_emul_gles_t)dlsym(lib,"init_emul_gles");
+ if (!init_gles_func) {
+ ALOGE("Failed to find init_emul_gles");
+ dlclose((void*)lib);
+ return NULL;
+ }
+
+ *libHandle = lib;
+ return (*init_gles_func)(eglIface);
+}
+
+static char *queryHostEGLString(EGLint name)
+{
+ HostConnection *hcon = HostConnection::get();
+ if (hcon) {
+ renderControl_encoder_context_t *rcEnc = hcon->rcEncoder();
+ if (rcEnc) {
+ int n = rcEnc->rcQueryEGLString(rcEnc, name, NULL, 0);
+ if (n < 0) {
+ // allocate space for the string with additional
+ // space charachter to be suffixed at the end.
+ char *str = (char *)malloc(-n+2);
+ n = rcEnc->rcQueryEGLString(rcEnc, name, str, -n);
+ if (n > 0) {
+ // add extra space at end of string which will be
+ // needed later when filtering the extension list.
+ strcat(str, " ");
+ return str;
+ }
+
+ free(str);
+ }
+ }
+ }
+
+ return NULL;
+}
+
+static bool findExtInList(const char* token, int tokenlen, const char* list)
+{
+ const char* p = list;
+ while (*p != '\0') {
+ const char* q = strchr(p, ' ');
+ if (q == NULL) {
+ /* should not happen, list must be space-terminated */
+ break;
+ }
+ if (tokenlen == (q - p) && !memcmp(token, p, tokenlen)) {
+ return true; /* found it */
+ }
+ p = q+1;
+ }
+ return false; /* not found */
+}
+
+static char *buildExtensionString()
+{
+ //Query host extension string
+ char *hostExt = queryHostEGLString(EGL_EXTENSIONS);
+ if (!hostExt || (hostExt[1] == '\0')) {
+ // no extensions on host - only static extension list supported
+ return strdup(systemStaticEGLExtensions);
+ }
+
+ int n = strlen(hostExt);
+ if (n > 0) {
+ char *str;
+ asprintf(&str,"%s%s", systemStaticEGLExtensions, hostExt);
+ free((char*)hostExt);
+ return str;
+ }
+ else {
+ free((char*)hostExt);
+ return strdup(systemStaticEGLExtensions);
+ }
+}
+
+const char *eglDisplay::queryString(EGLint name)
+{
+ if (name == EGL_CLIENT_APIS) {
+ return "OpenGL_ES";
+ }
+ else if (name == EGL_VERSION) {
+ pthread_mutex_lock(&m_lock);
+ if (m_versionString) {
+ pthread_mutex_unlock(&m_lock);
+ return m_versionString;
+ }
+
+ // build version string
+ asprintf(&m_versionString, "%d.%d", m_major, m_minor);
+ pthread_mutex_unlock(&m_lock);
+
+ return m_versionString;
+ }
+ else if (name == EGL_VENDOR) {
+ pthread_mutex_lock(&m_lock);
+ if (m_vendorString) {
+ pthread_mutex_unlock(&m_lock);
+ return m_vendorString;
+ }
+
+ // build vendor string
+ const char *hostVendor = queryHostEGLString(EGL_VENDOR);
+
+ if (hostVendor) {
+ asprintf(&m_vendorString, "%s Host: %s",
+ systemEGLVendor, hostVendor);
+ free((char*)hostVendor);
+ }
+ else {
+ m_vendorString = (char *)systemEGLVendor;
+ }
+ pthread_mutex_unlock(&m_lock);
+
+ return m_vendorString;
+ }
+ else if (name == EGL_EXTENSIONS) {
+ pthread_mutex_lock(&m_lock);
+ if (m_extensionString) {
+ pthread_mutex_unlock(&m_lock);
+ return m_extensionString;
+ }
+
+ // build extension string
+ m_extensionString = buildExtensionString();
+ pthread_mutex_unlock(&m_lock);
+
+ return m_extensionString;
+ }
+ else {
+ ALOGE("[%s] Unknown name %d\n", __FUNCTION__, name);
+ return NULL;
+ }
+}
+
+/* To get the value of attribute <a> of config <c> use the following formula:
+ * value = *(m_configs + (int)c*m_numConfigAttribs + a);
+ */
+EGLBoolean eglDisplay::getAttribValue(EGLConfig config, EGLint attribIdx, EGLint * value)
+{
+ if (attribIdx == ATTRIBUTE_NONE)
+ {
+ ALOGE("[%s] Bad attribute idx\n", __FUNCTION__);
+ return EGL_FALSE;
+ }
+ *value = *(m_configs + (intptr_t)config*m_numConfigAttribs + attribIdx);
+ return EGL_TRUE;
+}
+
+EGLBoolean eglDisplay::getConfigAttrib(EGLConfig config, EGLint attrib, EGLint * value)
+{
+ //Though it seems that valueFor() is thread-safe, we don't take chanses
+ pthread_mutex_lock(&m_lock);
+ EGLBoolean ret = getAttribValue(config, m_attribs.valueFor(attrib), value);
+ pthread_mutex_unlock(&m_lock);
+ return ret;
+}
+
+void eglDisplay::dumpConfig(EGLConfig config)
+{
+ EGLint value = 0;
+ DBG("^^^^^^^^^^ dumpConfig %d ^^^^^^^^^^^^^^^^^^", (int)config);
+ for (int i=0; i<m_numConfigAttribs; i++) {
+ getAttribValue(config, i, &value);
+ DBG("{%d}[%d] %d\n", (int)config, i, value);
+ }
+}
+
+/* To set the value of attribute <a> of config <c> use the following formula:
+ * *(m_configs + (int)c*m_numConfigAttribs + a) = value;
+ */
+EGLBoolean eglDisplay::setAttribValue(EGLConfig config, EGLint attribIdx, EGLint value)
+{
+ if (attribIdx == ATTRIBUTE_NONE)
+ {
+ ALOGE("[%s] Bad attribute idx\n", __FUNCTION__);
+ return EGL_FALSE;
+ }
+ *(m_configs + (intptr_t)config*m_numConfigAttribs + attribIdx) = value;
+ return EGL_TRUE;
+}
+
+EGLBoolean eglDisplay::setConfigAttrib(EGLConfig config, EGLint attrib, EGLint value)
+{
+ //Though it seems that valueFor() is thread-safe, we don't take chanses
+ pthread_mutex_lock(&m_lock);
+ EGLBoolean ret = setAttribValue(config, m_attribs.valueFor(attrib), value);
+ pthread_mutex_unlock(&m_lock);
+ return ret;
+}
+
+
+EGLBoolean eglDisplay::getConfigNativePixelFormat(EGLConfig config, PixelFormat * format)
+{
+ EGLint redSize, blueSize, greenSize, alphaSize;
+
+ 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==8)&&(greenSize==8)&&(blueSize==8)&&(alphaSize==8)) *format = PIXEL_FORMAT_RGBA_8888; //XXX: BGR?
+ else if ((redSize==8)&&(greenSize==8)&&(blueSize==8)&&(alphaSize==0)) *format = PIXEL_FORMAT_RGBX_8888; //XXX or PIXEL_FORMAT_RGB_888
+ else if ((redSize==5)&&(greenSize==6)&&(blueSize==5)&&(alphaSize==0)) *format = PIXEL_FORMAT_RGB_565;
+ else if ((redSize==5)&&(greenSize==5)&&(blueSize==5)&&(alphaSize==1)) *format = PIXEL_FORMAT_RGBA_5551;
+ else if ((redSize==4)&&(greenSize==4)&&(blueSize==4)&&(alphaSize==4)) *format = PIXEL_FORMAT_RGBA_4444;
+ else {
+ return EGL_FALSE;
+ }
+ return EGL_TRUE;
+}
+EGLBoolean eglDisplay::getConfigGLPixelFormat(EGLConfig config, GLenum * format)
+{
+ EGLint redSize, blueSize, greenSize, alphaSize;
+
+ 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;
+}
Code Review / iec.git / blobdiff