private static void printConfig(EGLConfig config) {
int[] value = new int[1];
Log.d(LOG_TAG, "EGL configuration " + config + ":");
sEgl.eglGetConfigAttrib(sEglDisplay, config, EGL_RED_SIZE, value);
Log.d(LOG_TAG, " RED_SIZE = " + value[0]);
sEgl.eglGetConfigAttrib(sEglDisplay, config, EGL_GREEN_SIZE, value);
Log.d(LOG_TAG, " GREEN_SIZE = " + value[0]);
sEgl.eglGetConfigAttrib(sEglDisplay, config, EGL_BLUE_SIZE, value);
Log.d(LOG_TAG, " BLUE_SIZE = " + value[0]);
sEgl.eglGetConfigAttrib(sEglDisplay, config, EGL_ALPHA_SIZE, value);
Log.d(LOG_TAG, " ALPHA_SIZE = " + value[0]);
sEgl.eglGetConfigAttrib(sEglDisplay, config, EGL_DEPTH_SIZE, value);
Log.d(LOG_TAG, " DEPTH_SIZE = " + value[0]);
sEgl.eglGetConfigAttrib(sEglDisplay, config, EGL_STENCIL_SIZE, value);
Log.d(LOG_TAG, " STENCIL_SIZE = " + value[0]);
sEgl.eglGetConfigAttrib(sEglDisplay, config, EGL_SAMPLE_BUFFERS, value);
Log.d(LOG_TAG, " SAMPLE_BUFFERS = " + value[0]);
sEgl.eglGetConfigAttrib(sEglDisplay, config, EGL_SAMPLES, value);
Log.d(LOG_TAG, " SAMPLES = " + value[0]);
sEgl.eglGetConfigAttrib(sEglDisplay, config, EGL_SURFACE_TYPE, value);
Log.d(LOG_TAG, " SURFACE_TYPE = 0x" + Integer.toHexString(value[0]));
sEgl.eglGetConfigAttrib(sEglDisplay, config, EGL_CONFIG_CAVEAT, value);
Log.d(LOG_TAG, " CONFIG_CAVEAT = 0x" + Integer.toHexString(value[0]));
}
private int findConfigAttrib(
EGL10 egl, EGLDisplay display, EGLConfig config, int attribute, int defaultValue) {
int[] mValue = new int[1];
if (egl.eglGetConfigAttrib(display, config, attribute, mValue)) return mValue[0];
return defaultValue;
}
private void logConfig(final EGL10 egl, final EGLDisplay display, final EGLConfig config) {
final int value[] = new int[1];
final StringBuilder sb = new StringBuilder();
for (int j = 0; j < ATTR_ID.length; j++) {
egl.eglGetConfigAttrib(display, config, ATTR_ID[j], value);
sb.append(ATTR_NAME[j] + value[0] + " ");
}
Log.i(TAG, "Config chosen: " + sb.toString());
}
/*--------- findConfigAttrib -----------------------------------------------------*/
private int findConfigAttrib(
EGL10 egl, EGLDisplay display, EGLConfig config, int attribute, int defaultValue) {
Log.d(TAG + "class ConfigChooser", "findConfigAttrib");
if (egl.eglGetConfigAttrib(display, config, attribute, mValue)) {
return mValue[0];
}
return defaultValue;
}
private static EGLConfig chooseConfig() {
int[] desiredConfig;
int rSize, gSize, bSize;
int[] numConfigs = new int[1];
switch (GeckoAppShell.getScreenDepth()) {
case 24:
desiredConfig = CONFIG_SPEC_24BPP;
rSize = gSize = bSize = 8;
break;
case 16:
default:
desiredConfig = CONFIG_SPEC_16BPP;
rSize = 5;
gSize = 6;
bSize = 5;
break;
}
if (!sEGL.eglChooseConfig(sEGLDisplay, desiredConfig, null, 0, numConfigs)
|| numConfigs[0] <= 0) {
throw new GLControllerException("No available EGL configurations " + getEGLError());
}
EGLConfig[] configs = new EGLConfig[numConfigs[0]];
if (!sEGL.eglChooseConfig(sEGLDisplay, desiredConfig, configs, numConfigs[0], numConfigs)) {
throw new GLControllerException(
"No EGL configuration for that specification " + getEGLError());
}
// Select the first configuration that matches the screen depth.
int[] red = new int[1], green = new int[1], blue = new int[1];
for (EGLConfig config : configs) {
sEGL.eglGetConfigAttrib(sEGLDisplay, config, EGL10.EGL_RED_SIZE, red);
sEGL.eglGetConfigAttrib(sEGLDisplay, config, EGL10.EGL_GREEN_SIZE, green);
sEGL.eglGetConfigAttrib(sEGLDisplay, config, EGL10.EGL_BLUE_SIZE, blue);
if (red[0] == rSize && green[0] == gSize && blue[0] == bSize) {
return config;
}
}
throw new GLControllerException("No suitable EGL configuration found");
}
public boolean eglGetConfigAttrib(
EGLDisplay display, EGLConfig config, int attribute, int[] value) {
begin("eglGetConfigAttrib");
arg("display", display);
arg("config", config);
arg("attribute", attribute);
end();
boolean result = mEgl10.eglGetConfigAttrib(display, config, attribute, value);
arg("value", value);
returns(result);
checkError();
return false;
}
/*
* OpenGL help
*/
public static EGLConfig getEglConfig565(EGL10 egl, EGLDisplay display) {
int[] version = new int[2];
egl.eglInitialize(display, version);
EGLConfig[] conf = new EGLConfig[100];
int[] num_conf = new int[100];
egl.eglGetConfigs(display, conf, 100, num_conf);
int[] red = new int[1];
int[] blue = new int[1];
int[] green = new int[1];
for (int i = 0; i < 100; i++) {
if (conf[i] == null) break;
egl.eglGetConfigAttrib(display, conf[i], EGL10.EGL_RED_SIZE, red);
egl.eglGetConfigAttrib(display, conf[i], EGL10.EGL_BLUE_SIZE, blue);
egl.eglGetConfigAttrib(display, conf[i], EGL10.EGL_GREEN_SIZE, green);
if (red[0] == 5 && green[0] == 6 && blue[0] == 5) {
return conf[i];
}
}
return null;
}
private EGLConfig chooseConfig(
final EGL10 egl, final EGLDisplay display, final EGLConfig configs[]) {
EGLConfig result = null;
int minStencil = Integer.MAX_VALUE;
final int value[] = new int[1];
// Because we need only one bit of stencil, try to choose a config that
// has stencil support but with smallest number of stencil bits. If
// none is found, choose any one.
for (int i = 0, n = configs.length; i < n; ++i) {
if (!ApiHelper.USE_888_PIXEL_FORMAT) {
if (egl.eglGetConfigAttrib(display, configs[i], EGL10.EGL_RED_SIZE, value)) {
// Filter out ARGB 8888 configs.
if (value[0] == 8) {
continue;
}
}
}
if (egl.eglGetConfigAttrib(display, configs[i], EGL10.EGL_STENCIL_SIZE, value)) {
if (value[0] == 0) {
continue;
}
if (value[0] < minStencil) {
minStencil = value[0];
result = configs[i];
}
} else throw new RuntimeException("eglGetConfigAttrib error: " + egl.eglGetError());
}
if (result == null) {
result = configs[0];
}
egl.eglGetConfigAttrib(display, result, EGL10.EGL_STENCIL_SIZE, value);
logConfig(egl, display, result);
return result;
}
private void printConfig(EGL10 egl, EGLDisplay display, EGLConfig config) {
int[] attributes = {
EGL10.EGL_BUFFER_SIZE,
EGL10.EGL_ALPHA_SIZE,
EGL10.EGL_BLUE_SIZE,
EGL10.EGL_GREEN_SIZE,
EGL10.EGL_RED_SIZE,
EGL10.EGL_DEPTH_SIZE,
EGL10.EGL_STENCIL_SIZE,
EGL10.EGL_CONFIG_CAVEAT,
EGL10.EGL_CONFIG_ID,
EGL10.EGL_LEVEL,
EGL10.EGL_MAX_PBUFFER_HEIGHT,
EGL10.EGL_MAX_PBUFFER_PIXELS,
EGL10.EGL_MAX_PBUFFER_WIDTH,
EGL10.EGL_NATIVE_RENDERABLE,
EGL10.EGL_NATIVE_VISUAL_ID,
EGL10.EGL_NATIVE_VISUAL_TYPE,
0x3030, // EGL10.EGL_PRESERVED_RESOURCES,
EGL10.EGL_SAMPLES,
EGL10.EGL_SAMPLE_BUFFERS,
EGL10.EGL_SURFACE_TYPE,
EGL10.EGL_TRANSPARENT_TYPE,
EGL10.EGL_TRANSPARENT_RED_VALUE,
EGL10.EGL_TRANSPARENT_GREEN_VALUE,
EGL10.EGL_TRANSPARENT_BLUE_VALUE,
0x3039, // EGL10.EGL_BIND_TO_TEXTURE_RGB,
0x303A, // EGL10.EGL_BIND_TO_TEXTURE_RGBA,
0x303B, // EGL10.EGL_MIN_SWAP_INTERVAL,
0x303C, // EGL10.EGL_MAX_SWAP_INTERVAL,
EGL10.EGL_LUMINANCE_SIZE,
EGL10.EGL_ALPHA_MASK_SIZE,
EGL10.EGL_COLOR_BUFFER_TYPE,
EGL10.EGL_RENDERABLE_TYPE,
0x3042 // EGL10.EGL_CONFORMANT
};
String[] names = {
"EGL_BUFFER_SIZE",
"EGL_ALPHA_SIZE",
"EGL_BLUE_SIZE",
"EGL_GREEN_SIZE",
"EGL_RED_SIZE",
"EGL_DEPTH_SIZE",
"EGL_STENCIL_SIZE",
"EGL_CONFIG_CAVEAT",
"EGL_CONFIG_ID",
"EGL_LEVEL",
"EGL_MAX_PBUFFER_HEIGHT",
"EGL_MAX_PBUFFER_PIXELS",
"EGL_MAX_PBUFFER_WIDTH",
"EGL_NATIVE_RENDERABLE",
"EGL_NATIVE_VISUAL_ID",
"EGL_NATIVE_VISUAL_TYPE",
"EGL_PRESERVED_RESOURCES",
"EGL_SAMPLES",
"EGL_SAMPLE_BUFFERS",
"EGL_SURFACE_TYPE",
"EGL_TRANSPARENT_TYPE",
"EGL_TRANSPARENT_RED_VALUE",
"EGL_TRANSPARENT_GREEN_VALUE",
"EGL_TRANSPARENT_BLUE_VALUE",
"EGL_BIND_TO_TEXTURE_RGB",
"EGL_BIND_TO_TEXTURE_RGBA",
"EGL_MIN_SWAP_INTERVAL",
"EGL_MAX_SWAP_INTERVAL",
"EGL_LUMINANCE_SIZE",
"EGL_ALPHA_MASK_SIZE",
"EGL_COLOR_BUFFER_TYPE",
"EGL_RENDERABLE_TYPE",
"EGL_CONFORMANT"
};
int[] value = new int[1];
for (int i = 0; i < attributes.length; i++) {
int attribute = attributes[i];
String name = names[i];
if (egl.eglGetConfigAttrib(display, config, attribute, value)) {
Log.w(TAG, String.format(" %s: %d\n", name, value[0]));
} else {
// Log.w(TAG, String.format(" %s: failed\n", name));
while (egl.eglGetError() != EGL10.EGL_SUCCESS) ;
}
}
}
@Override
public EGLConfig chooseConfig(final EGL10 egl, final EGLDisplay display) {
final int[] numberConfigs = new int[1];
if (!egl.eglGetConfigs(display, null, 0, numberConfigs)) {
throw new IllegalStateException("Unable to retrieve number of egl configs available.");
}
final EGLConfig[] configs = new EGLConfig[numberConfigs[0]];
if (!egl.eglGetConfigs(display, configs, configs.length, numberConfigs)) {
throw new IllegalStateException("Unable to retrieve egl configs available.");
}
final int[] configAttribs = {
EGL10.EGL_ALPHA_SIZE, 8, // need alpha for the multi-pass
// timewarp compositor
EGL10.EGL_BLUE_SIZE, 8,
EGL10.EGL_GREEN_SIZE, 8,
EGL10.EGL_RED_SIZE, 8,
EGL10.EGL_DEPTH_SIZE, 0,
EGL10.EGL_SAMPLES, 0,
EGL10.EGL_NONE
};
EGLConfig config = null;
for (int i = 0; i < numberConfigs[0]; ++i) {
final int[] value = new int[1];
final int EGL_OPENGL_ES3_BIT_KHR = 0x0040;
if (!egl.eglGetConfigAttrib(display, configs[i], EGL10.EGL_RENDERABLE_TYPE, value)) {
Log.v(TAG, "eglGetConfigAttrib for EGL_RENDERABLE_TYPE failed");
continue;
}
if ((value[0] & EGL_OPENGL_ES3_BIT_KHR) != EGL_OPENGL_ES3_BIT_KHR) {
continue;
}
if (!egl.eglGetConfigAttrib(display, configs[i], EGL10.EGL_SURFACE_TYPE, value)) {
Log.v(TAG, "eglGetConfigAttrib for EGL_SURFACE_TYPE failed");
continue;
}
if ((value[0] & (EGL10.EGL_WINDOW_BIT | EGL10.EGL_PBUFFER_BIT))
!= (EGL10.EGL_WINDOW_BIT | EGL10.EGL_PBUFFER_BIT)) {
continue;
}
int j = 0;
for (; configAttribs[j] != EGL10.EGL_NONE; j += 2) {
if (!egl.eglGetConfigAttrib(display, configs[i], configAttribs[j], value)) {
Log.v(TAG, "eglGetConfigAttrib for " + configAttribs[j] + " failed");
continue;
}
if (value[0] != configAttribs[j + 1]) {
break;
}
}
if (configAttribs[j] == EGL10.EGL_NONE) {
config = configs[i];
break;
}
}
return config;
}
private int getAttrib(EGL10 egl, EGLDisplay display, EGLConfig config, int attrib, int defValue) {
if (egl.eglGetConfigAttrib(display, config, attrib, value)) {
return value[0];
}
return defValue;
}
// EGL functions
public static boolean initEGL(int majorVersion, int minorVersion, int[] attribs) {
try {
EGL10 egl = (EGL10) EGLContext.getEGL();
if (SDLActivity.mEGLDisplay == null) {
SDLActivity.mEGLDisplay = egl.eglGetDisplay(EGL10.EGL_DEFAULT_DISPLAY);
int[] version = new int[2];
egl.eglInitialize(SDLActivity.mEGLDisplay, version);
}
if (SDLActivity.mEGLDisplay != null && SDLActivity.mEGLContext == EGL10.EGL_NO_CONTEXT) {
// No current GL context exists, we will create a new one.
Log.v("SDL", "Starting up OpenGL ES " + majorVersion + "." + minorVersion);
EGLConfig[] configs = new EGLConfig[128];
int[] num_config = new int[1];
if (!egl.eglChooseConfig(SDLActivity.mEGLDisplay, attribs, configs, 1, num_config)
|| num_config[0] == 0) {
Log.e("SDL", "No EGL config available");
return false;
}
EGLConfig config = null;
int bestdiff = -1, bitdiff;
int[] value = new int[1];
// eglChooseConfig returns a number of configurations that match or exceed the requested
// attribs.
// From those, we select the one that matches our requirements more closely
Log.v("SDL", "Got " + num_config[0] + " valid modes from egl");
for (int i = 0; i < num_config[0]; i++) {
bitdiff = 0;
// Go through some of the attributes and compute the bit difference between what we want
// and what we get.
for (int j = 0; ; j += 2) {
if (attribs[j] == EGL10.EGL_NONE) break;
if (attribs[j + 1] != EGL10.EGL_DONT_CARE
&& (attribs[j] == EGL10.EGL_RED_SIZE
|| attribs[j] == EGL10.EGL_GREEN_SIZE
|| attribs[j] == EGL10.EGL_BLUE_SIZE
|| attribs[j] == EGL10.EGL_ALPHA_SIZE
|| attribs[j] == EGL10.EGL_DEPTH_SIZE
|| attribs[j] == EGL10.EGL_STENCIL_SIZE)) {
egl.eglGetConfigAttrib(SDLActivity.mEGLDisplay, configs[i], attribs[j], value);
bitdiff += value[0] - attribs[j + 1]; // value is always >= attrib
}
}
if (bitdiff < bestdiff || bestdiff == -1) {
config = configs[i];
bestdiff = bitdiff;
}
if (bitdiff == 0) break; // we found an exact match!
}
Log.d("SDL", "Selected mode with a total bit difference of " + bestdiff);
SDLActivity.mEGLConfig = config;
SDLActivity.mGLMajor = majorVersion;
SDLActivity.mGLMinor = minorVersion;
}
return SDLActivity.createEGLSurface();
} catch (Exception e) {
Log.v("SDL", e + "");
for (StackTraceElement s : e.getStackTrace()) {
Log.v("SDL", s.toString());
}
return false;
}
}
/** @return OpenGL ES major version 1, 2, or 3 or some non-positive number for error */
private static int getDetectedVersion() {
/*
* Get all the device configurations and check the EGL_RENDERABLE_TYPE attribute
* to determine the highest ES version supported by any config. The
* EGL_KHR_create_context extension is required to check for ES3 support; if the
* extension is not present this test will fail to detect ES3 support. This
* effectively makes the extension mandatory for ES3-capable devices.
*/
EGL10 egl = (EGL10) EGLContext.getEGL();
EGLDisplay display = egl.eglGetDisplay(EGL10.EGL_DEFAULT_DISPLAY);
int[] numConfigs = new int[1];
if (egl.eglInitialize(display, null)) {
try {
boolean checkES3 =
hasExtension(
egl.eglQueryString(display, EGL10.EGL_EXTENSIONS), "EGL_KHR_create_context");
if (egl.eglGetConfigs(display, null, 0, numConfigs)) {
EGLConfig[] configs = new EGLConfig[numConfigs[0]];
if (egl.eglGetConfigs(display, configs, numConfigs[0], numConfigs)) {
int highestEsVersion = 0;
int[] value = new int[1];
for (int i = 0; i < numConfigs[0]; i++) {
if (egl.eglGetConfigAttrib(display, configs[i], EGL10.EGL_RENDERABLE_TYPE, value)) {
if (checkES3 && ((value[0] & EGL_OPENGL_ES3_BIT_KHR) == EGL_OPENGL_ES3_BIT_KHR)) {
if (highestEsVersion < 3) highestEsVersion = 3;
} else if ((value[0] & EGL_OPENGL_ES2_BIT) == EGL_OPENGL_ES2_BIT) {
if (highestEsVersion < 2) highestEsVersion = 2;
} else if ((value[0] & EGL_OPENGL_ES_BIT) == EGL_OPENGL_ES_BIT) {
if (highestEsVersion < 1) highestEsVersion = 1;
}
} else {
Log.w(
TAG,
"Getting config attribute with "
+ "EGL10#eglGetConfigAttrib failed "
+ "("
+ i
+ "/"
+ numConfigs[0]
+ "): "
+ egl.eglGetError());
}
}
return highestEsVersion;
} else {
Log.e(TAG, "Getting configs with EGL10#eglGetConfigs failed: " + egl.eglGetError());
return -1;
}
} else {
Log.e(
TAG,
"Getting number of configs with EGL10#eglGetConfigs failed: " + egl.eglGetError());
return -2;
}
} finally {
egl.eglTerminate(display);
}
} else {
Log.e(TAG, "Couldn't initialize EGL.");
return -3;
}
}