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Allow 16-bit color EGLConfigs

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The emulator without GPU acceleration only supports 16-bit
framebuffers.

Bug: 7185810
Change-Id: I883180367bf5b291d5e70427ab586d2e17868a96
This commit is contained in:
Jesse Hall 2012-09-19 21:00:49 -07:00
parent 3cdccc6f85
commit f21cffa7d7
1 changed files with 27 additions and 11 deletions
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38
services/surfaceflinger/SurfaceFlinger.cpp
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@ -268,25 +268,41 @@ EGLConfig SurfaceFlinger::selectEGLConfig(EGLDisplay display, EGLint nativeVisua
EGLint attribs[] = {
EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
// The rest of the attributes must be in this order and at the end
// of the list; we rely on that for fallback searches below.
EGL_RED_SIZE, 8,
EGL_GREEN_SIZE, 8,
EGL_BLUE_SIZE, 8,
// EGL_RECORDABLE_ANDROID must be last so that we can retry
// without it easily (see below)
EGL_RECORDABLE_ANDROID, EGL_TRUE,
EGL_NONE
};
err = selectConfigForPixelFormat(display, attribs, nativeVisualId, &config);
if (err) {
// maybe we failed because of EGL_RECORDABLE_ANDROID
ALOGW("couldn't find an EGLConfig with EGL_RECORDABLE_ANDROID");
attribs[NELEM(attribs) - 3] = EGL_NONE;
err = selectConfigForPixelFormat(display, attribs, nativeVisualId, &config);
}
ALOGE_IF(err, "couldn't find an EGLConfig matching the screen format");
if (eglGetConfigAttrib(display, config, EGL_CONFIG_CAVEAT, &dummy) == EGL_TRUE) {
if (!err)
goto success;
// maybe we failed because of EGL_RECORDABLE_ANDROID
ALOGW("no suitable EGLConfig found, trying without EGL_RECORDABLE_ANDROID");
attribs[NELEM(attribs) - 3] = EGL_NONE;
err = selectConfigForPixelFormat(display, attribs, nativeVisualId, &config);
if (!err)
goto success;
// allow less than 24-bit color; the non-gpu-accelerated emulator only
// supports 16-bit color
ALOGW("no suitable EGLConfig found, trying with 16-bit color allowed");
attribs[NELEM(attribs) - 9] = EGL_NONE;
err = selectConfigForPixelFormat(display, attribs, nativeVisualId, &config);
if (!err)
goto success;
// this EGL is too lame for Android
ALOGE("no suitable EGLConfig found, giving up");
return 0;
success:
if (eglGetConfigAttrib(display, config, EGL_CONFIG_CAVEAT, &dummy))
ALOGW_IF(dummy == EGL_SLOW_CONFIG, "EGL_SLOW_CONFIG selected!");
}
return config;
}