91 lines
2.7 KiB
C++
91 lines
2.7 KiB
C++
/*
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* Copyright (C) 2018 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 <stdio.h>
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#include <jawt.h>
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#include <linux/jawt_md.h>
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#include "JAWTUtils.h"
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#include<GL/glx.h>
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extern "C" {
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void *getNativeWindow(JNIEnv* env, jclass, jobject surface) {
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void* win = nullptr;
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JAWT_DrawingSurface* ds = nullptr;
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JAWT_DrawingSurfaceInfo* dsi = nullptr;
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if (!acquireDrawingSurface(env, surface, &ds, &dsi)) {
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return win;
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}
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JAWT_X11DrawingSurfaceInfo* dsi_x11 = (JAWT_X11DrawingSurfaceInfo*) dsi->platformInfo;
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win = (void*) dsi_x11->drawable;
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releaseDrawingSurface(ds, dsi);
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return win;
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}
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jlong createNativeSurface(jint width, jint height) {
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Display* display = XOpenDisplay(nullptr);
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int screen = DefaultScreen(display);
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Window window = 0;
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#ifndef NDEBUG
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int major, minor;
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glXQueryVersion(display, &major, &minor);
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printf("Using GLX v%d.%d\n", major, minor); fflush(stdout);
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#endif
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static int visualAttributess[] = {
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GLX_DRAWABLE_TYPE, GLX_WINDOW_BIT,
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GLX_RENDER_TYPE, GLX_RGBA_BIT,
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GLX_DOUBLEBUFFER, True,
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GLX_RED_SIZE, 8,
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GLX_GREEN_SIZE, 8,
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GLX_BLUE_SIZE, 8,
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GLX_DEPTH_SIZE, 24,
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None
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};
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int numConfigs = 0;
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GLXFBConfig* configs = glXChooseFBConfig( display, screen, visualAttributess, &numConfigs);
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if (numConfigs == 0) {
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printf("Unable to find a suitable Framebuffer Configuration.\n"); fflush(stdout);
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return 0;
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}
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int pbufferAttributes[] = {
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GLX_PBUFFER_WIDTH, width,
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GLX_PBUFFER_HEIGHT, height,
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None
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};
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window = glXCreatePbuffer( display, configs[0], pbufferAttributes );
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XFree(configs);
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// Make sure pbuffer creation has not been buffered in the event queue (we need it NOW).
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XFlush(display);
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// Camouflage the pbuffer as a window which are both XID anyway.
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return (jlong) window;
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}
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void destroyNativeSurface(jlong surface) {
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const char* displayName = nullptr;
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Display* display = XOpenDisplay(displayName);
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GLXPbuffer pBuffer = (GLXPbuffer)surface;
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glXDestroyPbuffer(display, pBuffer);
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}
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}
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