예제 #1
0
EGLSurface eglCreateWindowSurface(  EGLDisplay dpy, EGLConfig config,
                                    NativeWindowType window,
                                    const EGLint *attrib_list)
{
    clearError();

    egl_display_t const* dp = 0;
    egl_connection_t* cnx = validate_display_config(dpy, config, dp);
    if (cnx) {
        EGLDisplay iDpy = dp->disp[ dp->configs[intptr_t(config)].impl ].dpy;
        EGLConfig iConfig = dp->configs[intptr_t(config)].config;
        EGLint format;

        if (native_window_api_connect(window, NATIVE_WINDOW_API_EGL) != OK) {
            LOGE("EGLNativeWindowType %p already connected to another API",
                    window);
            return setError(EGL_BAD_NATIVE_WINDOW, EGL_NO_SURFACE);
        }

        // set the native window's buffers format to match this config
        if (cnx->egl.eglGetConfigAttrib(iDpy,
                iConfig, EGL_NATIVE_VISUAL_ID, &format)) {
            if (format != 0) {
                int err = native_window_set_buffers_format(window, format);
                if (err != 0) {
                    LOGE("error setting native window pixel format: %s (%d)",
                            strerror(-err), err);
                    native_window_api_disconnect(window, NATIVE_WINDOW_API_EGL);
                    return setError(EGL_BAD_NATIVE_WINDOW, EGL_NO_SURFACE);
                }
            }
        }

        // the EGL spec requires that a new EGLSurface default to swap interval
        // 1, so explicitly set that on the window here.
        ANativeWindow* anw = reinterpret_cast<ANativeWindow*>(window);
        anw->setSwapInterval(anw, 1);

        EGLSurface surface = cnx->egl.eglCreateWindowSurface(
                iDpy, iConfig, window, attrib_list);
        if (surface != EGL_NO_SURFACE) {
            egl_surface_t* s = new egl_surface_t(dpy, config, window, surface,
                    dp->configs[intptr_t(config)].impl, cnx);
            return s;
        }

        // EGLSurface creation failed
        native_window_set_buffers_format(window, 0);
        native_window_api_disconnect(window, NATIVE_WINDOW_API_EGL);
    }
    return EGL_NO_SURFACE;
}
예제 #2
0
void egl_window_surface_t::setSwapInterval(int interval)
{
    nativeWindow->setSwapInterval(nativeWindow, interval);
}
예제 #3
0
EGLSurface eglCreateWindowSurface(  EGLDisplay dpy, EGLConfig config,
                                    NativeWindowType window,
                                    const EGLint *attrib_list)
{
    clearError();

    egl_connection_t* cnx = NULL;
    egl_display_ptr dp = validate_display_connection(dpy, cnx);
    if (dp) {
        EGLDisplay iDpy = dp->disp.dpy;

        if (native_window_api_connect(window, NATIVE_WINDOW_API_EGL) != OK) {
            ALOGE("EGLNativeWindowType %p already connected to another API",
                    window);
            return setError(EGL_BAD_ALLOC, EGL_NO_SURFACE);
        }

        // Set the native window's buffers format to match what this config requests.
        // Whether to use sRGB gamma is not part of the EGLconfig, but is part
        // of our native format. So if sRGB gamma is requested, we have to
        // modify the EGLconfig's format before setting the native window's
        // format.
#if WORKAROUND_BUG_10194508
#warning "WORKAROUND_10194508 enabled"
        EGLint format;
        if (!cnx->egl.eglGetConfigAttrib(iDpy, config, EGL_NATIVE_VISUAL_ID,
                &format)) {
            ALOGE("eglGetConfigAttrib(EGL_NATIVE_VISUAL_ID) failed: %#x",
                    eglGetError());
            format = 0;
        }
        if (attrib_list) {
            for (const EGLint* attr = attrib_list; *attr != EGL_NONE;
                    attr += 2) {
                if (*attr == EGL_GL_COLORSPACE_KHR &&
                        dp->haveExtension("EGL_KHR_gl_colorspace")) {
                    if (ENABLE_EGL_KHR_GL_COLORSPACE) {
                        format = modifyFormatColorspace(format, *(attr+1));
                    } else {
                        // Normally we'd pass through unhandled attributes to
                        // the driver. But in case the driver implements this
                        // extension but we're disabling it, we want to prevent
                        // it getting through -- support will be broken without
                        // our help.
                        ALOGE("sRGB window surfaces not supported");
                        return setError(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE);
                    }
                }
            }
        }
#else
        // by default, just pick RGBA_8888
        EGLint format = HAL_PIXEL_FORMAT_RGBA_8888;

        EGLint a = 0;
        cnx->egl.eglGetConfigAttrib(iDpy, config, EGL_ALPHA_SIZE, &a);
        if (a > 0) {
            // alpha-channel requested, there's really only one suitable format
            format = HAL_PIXEL_FORMAT_RGBA_8888;
        } else {
            EGLint r, g, b;
            r = g = b = 0;
            cnx->egl.eglGetConfigAttrib(iDpy, config, EGL_RED_SIZE,   &r);
            cnx->egl.eglGetConfigAttrib(iDpy, config, EGL_GREEN_SIZE, &g);
            cnx->egl.eglGetConfigAttrib(iDpy, config, EGL_BLUE_SIZE,  &b);
            EGLint colorDepth = r + g + b;
            if (colorDepth <= 16) {
                format = HAL_PIXEL_FORMAT_RGB_565;
            } else {
                format = HAL_PIXEL_FORMAT_RGBX_8888;
            }
        }

        // now select a corresponding sRGB format if needed
        if (attrib_list && dp->haveExtension("EGL_KHR_gl_colorspace")) {
            for (const EGLint* attr = attrib_list; *attr != EGL_NONE; attr += 2) {
                if (*attr == EGL_GL_COLORSPACE_KHR) {
                    if (ENABLE_EGL_KHR_GL_COLORSPACE) {
                        format = modifyFormatColorspace(format, *(attr+1));
                    } else {
                        // Normally we'd pass through unhandled attributes to
                        // the driver. But in case the driver implements this
                        // extension but we're disabling it, we want to prevent
                        // it getting through -- support will be broken without
                        // our help.
                        ALOGE("sRGB window surfaces not supported");
                        return setError(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE);
                    }
                }
            }
        }
#endif
        if (format != 0) {
            int err = native_window_set_buffers_format(window, format);
            if (err != 0) {
                ALOGE("error setting native window pixel format: %s (%d)",
                        strerror(-err), err);
                native_window_api_disconnect(window, NATIVE_WINDOW_API_EGL);
                return setError(EGL_BAD_NATIVE_WINDOW, EGL_NO_SURFACE);
            }
        }

        // the EGL spec requires that a new EGLSurface default to swap interval
        // 1, so explicitly set that on the window here.
        ANativeWindow* anw = reinterpret_cast<ANativeWindow*>(window);
        anw->setSwapInterval(anw, 1);

        EGLSurface surface = cnx->egl.eglCreateWindowSurface(
                iDpy, config, window, attrib_list);
        if (surface != EGL_NO_SURFACE) {
            egl_surface_t* s = new egl_surface_t(dp.get(), config, window,
                    surface, cnx);
            return s;
        }

        // EGLSurface creation failed
        native_window_set_buffers_format(window, 0);
        native_window_api_disconnect(window, NATIVE_WINDOW_API_EGL);
    }
    return EGL_NO_SURFACE;
}