hwcomposer commandline test(s)
Add cnativewindow which provides a minimal bridge between EGL and hwcomposer or fbhal.
Add test-arrows, a trivial GLES2 test program to exercise this.
Change-Id: I60ece4378def6b6eda55437c215fc46a180ad7a3
diff --git a/tests/hwc/cnativewindow.c b/tests/hwc/cnativewindow.c
new file mode 100644
index 0000000..474ceec
--- /dev/null
+++ b/tests/hwc/cnativewindow.c
@@ -0,0 +1,578 @@
+/*
+ * Copyright (C) 2013 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 <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <errno.h>
+
+#include <pthread.h>
+
+#include <hardware/hardware.h>
+#include <hardware/gralloc.h>
+#include <hardware/hwcomposer.h>
+
+#include <system/window.h>
+#include <cutils/native_handle.h>
+
+// normalize and shorten type names
+typedef struct android_native_base_t aBase;
+typedef struct ANativeWindowBuffer aBuffer;
+typedef struct ANativeWindow aWindow;
+
+static int trace_level = 1;
+
+#define _TRACE(n,fmt...) \
+ do { if (trace_level >= n) fprintf(stderr, "CNW: " fmt); } while (0)
+
+#define ERROR(fmt...) _TRACE(0, fmt)
+#define INFO(fmt...) _TRACE(1, fmt)
+#define LOG(fmt...) _TRACE(2, fmt)
+#define TRACE(fmt...) _TRACE(3, fmt)
+
+#define QCT_WORKAROUND 1
+
+typedef struct CNativeBuffer {
+ aBuffer base;
+ struct CNativeBuffer *next;
+ struct CNativeBuffer *prev;
+ int ffd;
+} CNativeBuffer;
+
+typedef struct CNativeWindow {
+ aWindow base;
+
+ hwc_composer_device_1_t *hwc;
+ framebuffer_device_t *fb;
+ alloc_device_t *gr;
+
+ pthread_mutex_t lock;
+ pthread_cond_t cvar;
+
+ aBuffer *front;
+ aBuffer *spare;
+
+ CNativeBuffer free_buffer_queue;
+
+ unsigned width;
+ unsigned height;
+ unsigned xdpi;
+ unsigned ydpi;
+ unsigned format;
+
+ hwc_display_contents_1_t *dclist[HWC_NUM_DISPLAY_TYPES];
+
+ hwc_display_contents_1_t dc;
+ hwc_layer_1_t layer[4];
+} CNativeWindow;
+
+static inline CNativeBuffer *from_abuffer(aBuffer *buf) {
+ return (CNativeBuffer*) buf;
+}
+
+static CNativeBuffer *get_front(struct CNativeBuffer *queue) {
+ CNativeBuffer *buf = queue->next;
+ if (buf == queue)
+ return 0;
+ buf->next->prev = queue;
+ queue->next = buf->next;
+ buf->next = buf->prev = 0;
+ return buf;
+}
+
+static void put_front(struct CNativeBuffer *queue, aBuffer *_buf) {
+ struct CNativeBuffer *buf = (struct CNativeBuffer *) _buf;
+ buf->prev = queue;
+ buf->next = queue->next;
+ queue->next->prev = buf;
+ queue->next = buf;
+}
+
+static void put_back(struct CNativeBuffer *queue, aBuffer *_buf) {
+ struct CNativeBuffer *buf = (struct CNativeBuffer *) _buf;
+ buf->next = queue;
+ buf->prev = queue->prev;
+ queue->prev->next = buf;
+ queue->prev = buf;
+}
+
+static void cnw_inc_ref(aBase *base) { TRACE("buf %p ref++\n",base); }
+static void cnw_dec_ref(aBase *base) { TRACE("buf %p ref--\n",base); }
+
+static inline CNativeWindow *from_base(aWindow *base) {
+ return (CNativeWindow *) base;
+}
+
+static inline CNativeWindow *from_base_const(const aWindow *base) {
+ return (CNativeWindow *) base;
+}
+
+static int cnw_set_swap_interval(aWindow *base, int interval) {
+ CNativeWindow *win = from_base(base);
+ if (win->fb && win->fb->setSwapInterval)
+ return win->fb->setSwapInterval(win->fb, interval);
+ return 0;
+}
+
+static int cnw_dequeue_buffer1(aWindow *base, aBuffer **buf, int *ffd) {
+ CNativeWindow *win = from_base(base);
+ CNativeBuffer *cnb;
+
+ pthread_mutex_lock(&win->lock);
+
+ while ((cnb = get_front(&win->free_buffer_queue)) == 0) {
+ pthread_cond_wait(&win->cvar, &win->lock);
+ }
+
+ *ffd = cnb->ffd;
+ *buf = &cnb->base;
+ cnb->ffd = -1;
+ LOG("<< dequeue buffer %p %d\n", *buf, *ffd);
+
+ pthread_mutex_unlock(&win->lock);
+ return 0;
+}
+
+static int cnw_lock_buffer0(aWindow *base, aBuffer *buffer) {
+ return 0;
+}
+
+static void set_layer(hwc_layer_1_t *dl, aBuffer *buf, int ffd) {
+ int right = buf->width;
+ int bottom = buf->height;
+
+ dl->compositionType = HWC_FRAMEBUFFER;
+ dl->hints = 0;
+ dl->flags = 0;
+
+ dl->handle = buf->handle;
+ dl->transform = 0;
+ dl->blending = HWC_BLENDING_NONE;
+ dl->sourceCrop.left = 0;
+ dl->sourceCrop.top = 0;
+ dl->sourceCrop.right = right;
+ dl->sourceCrop.bottom = bottom;
+ dl->displayFrame.left = 0;
+ dl->displayFrame.top = 0;
+ dl->displayFrame.right = right;
+ dl->displayFrame.bottom = bottom;
+ dl->visibleRegionScreen.numRects = 1;
+ dl->visibleRegionScreen.rects = &dl->displayFrame;
+
+ dl->acquireFenceFd = ffd;
+ dl->releaseFenceFd = -1;
+}
+
+static void hwc_post(CNativeWindow *win, aBuffer *buf, int ffd) {
+ hwc_composer_device_1_t *hwc = win->hwc;
+ hwc_display_contents_1_t *dc = &(win->dc);
+ hwc_layer_1_t *dl = win->dc.hwLayers;
+ int r, i;
+
+ dc->retireFenceFd = -1;
+ dc->outbufAcquireFenceFd = -1;
+ dc->flags = HWC_GEOMETRY_CHANGED;
+ dc->numHwLayers = 1;
+
+ // some hwcomposers fail if these are NULL
+ dc->dpy = (void*) 0xdeadbeef;
+ dc->sur = (void*) 0xdeadbeef;
+
+ set_layer(&dl[0], buf, ffd);
+
+ if (QCT_WORKAROUND) {
+ set_layer(&dl[1], win->spare, -1);
+ dl[1].compositionType = HWC_FRAMEBUFFER_TARGET;
+ dc->numHwLayers++;
+ }
+
+ r = hwc->prepare(hwc, HWC_NUM_DISPLAY_TYPES, win->dclist);
+ if (r) {
+ ERROR("hwc->prepare failed r=%d\n",r);
+ return;
+ }
+
+// for (i = 0; i < dc->numHwLayers; i++)
+// LOG("dl[%d] ctype=0x%08x hints=0x%08x flags=0x%08x\n", i,
+// dl[i].compositionType, dl[0].hints, dl[0].flags);
+
+ r = hwc->set(hwc, HWC_NUM_DISPLAY_TYPES, win->dclist);
+ if (r) {
+ ERROR("hwc->set failed, r=%d\n", r);
+ return;
+ }
+
+ if (dc->retireFenceFd != -1)
+ close(dc->retireFenceFd);
+ if (dl->releaseFenceFd != -1) {
+ CNativeBuffer *cnb = from_abuffer(buf);
+ cnb->ffd = dl->releaseFenceFd;
+ }
+ if (QCT_WORKAROUND)
+ if (dl[1].releaseFenceFd != -1)
+ close(dl[1].releaseFenceFd);
+}
+
+static int cnw_queue_buffer1(aWindow *base, aBuffer *buffer, int ffd) {
+ CNativeWindow *win = from_base(base);
+ int res;
+ LOG(">> queue buffer %p %d\n", buffer, ffd);
+ if (win->fb) {
+ res = win->fb->post(win->fb, buffer->handle);
+ if (ffd != -1)
+ close(ffd);
+ } else {
+ hwc_post(win, buffer, ffd);
+ res = 0;
+ }
+ pthread_mutex_lock(&win->lock);
+ if (win->front)
+ put_back(&win->free_buffer_queue, win->front);
+ win->front = buffer;
+ pthread_cond_signal(&win->cvar);
+ pthread_mutex_unlock(&win->lock);
+
+ return res;
+}
+
+static int cnw_cancel_buffer1(aWindow *base, aBuffer *buf, int ffd) {
+ CNativeWindow *win = from_base(base);
+ CNativeBuffer *cnb = from_abuffer(buf);
+ LOG("<< cancel buffer %p %d\n", buf, ffd);
+ cnb->ffd = ffd;
+ pthread_mutex_lock(&win->lock);
+ put_front(&win->free_buffer_queue, buf);
+ pthread_mutex_unlock(&win->lock);
+ return 0;
+}
+
+static int cnw_dequeue_buffer0(aWindow *base, aBuffer **buf) {
+ int ffd = -1;
+ int r;
+ r = cnw_dequeue_buffer1(base, buf, &ffd);
+ if (ffd != -1)
+ close(ffd);
+ return r;
+}
+
+static int cnw_queue_buffer0(aWindow *base, aBuffer *buf) {
+ return cnw_queue_buffer1(base, buf, -1);
+}
+
+static int cnw_cancel_buffer0(aWindow *base, aBuffer *buf) {
+ return cnw_cancel_buffer1(base, buf, -1);
+}
+
+static int cnw_query(const aWindow *base, int what, int *value) {
+ CNativeWindow *win = from_base_const(base);
+
+ switch (what) {
+ case NATIVE_WINDOW_WIDTH:
+ case NATIVE_WINDOW_DEFAULT_WIDTH:
+ *value = win->width;
+ TRACE("query window width: %d\n", *value);
+ return 0;
+ case NATIVE_WINDOW_HEIGHT:
+ case NATIVE_WINDOW_DEFAULT_HEIGHT:
+ *value = win->height;
+ TRACE("query window height: %d\n", *value);
+ return 0;
+ case NATIVE_WINDOW_FORMAT:
+ *value = win->format;
+ TRACE("query window format: %d\n", *value);
+ return 0;
+ case NATIVE_WINDOW_TRANSFORM_HINT:
+ TRACE("query transform hint: 0\n");
+ *value = 0;
+ return 0;
+ case NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS:
+ TRACE("query min undequeued buffers: 1\n");
+ *value = 1;
+ return 0;
+ default:
+ *value = 0;
+ ERROR("query %d unknown!\n", what);
+ return -EINVAL;
+ }
+}
+
+static int cnw_perform(aWindow *base, int op, ...) {
+ CNativeWindow *win = from_base(base);
+ va_list ap;
+ va_start(ap, op);
+
+ switch (op) {
+ case NATIVE_WINDOW_SET_USAGE:
+ TRACE("set usage %d\n", va_arg(ap,int));
+ return 0;
+ case NATIVE_WINDOW_CONNECT:
+ case NATIVE_WINDOW_DISCONNECT:
+ case NATIVE_WINDOW_API_CONNECT:
+ case NATIVE_WINDOW_API_DISCONNECT:
+ return 0;
+ case NATIVE_WINDOW_SET_BUFFERS_FORMAT:
+ TRACE("set buffers format %d\n", va_arg(ap,int));
+ return 0;
+ case NATIVE_WINDOW_SET_BUFFERS_TRANSFORM:
+ TRACE("set buffers transform %d\n", va_arg(ap,int));
+ return 0;
+ case NATIVE_WINDOW_SET_BUFFERS_TIMESTAMP:
+ TRACE("set buffers timestamp %lld\n", va_arg(ap,long long));
+ return 0;
+ case NATIVE_WINDOW_SET_SCALING_MODE:
+ TRACE("set scaling mode %d\n", va_arg(ap,int));
+ return 0;
+ case NATIVE_WINDOW_SET_BUFFERS_DIMENSIONS: {
+ int w = va_arg(ap,int);
+ int h = va_arg(ap,int);
+ if ((w == win->width) && (h == win->height)) {
+ TRACE("set buffers dimensions %d x %d\n", w, h);
+ return 0;
+ }
+ ERROR("cannot resize buffers to %d x %d\n", w, h);
+ return -1;
+ }
+ default:
+ ERROR("perform %d unknown!\n", op);
+ return -ENODEV;
+ }
+}
+
+static void hwc_invalidate(const struct hwc_procs *procs) {}
+static void hwc_vsync(const struct hwc_procs *procs, int disp, int64_t ts) {}
+static void hwc_hotplug(const struct hwc_procs *procs, int disp, int conn) {}
+
+struct hwc_procs hprocs = {
+ .invalidate = hwc_invalidate,
+ .vsync = hwc_vsync,
+ .hotplug = hwc_hotplug,
+};
+
+uint32_t attrs[] = {
+ HWC_DISPLAY_WIDTH,
+ HWC_DISPLAY_HEIGHT,
+ HWC_DISPLAY_VSYNC_PERIOD,
+ HWC_DISPLAY_DPI_X,
+ HWC_DISPLAY_DPI_Y,
+ HWC_DISPLAY_NO_ATTRIBUTE,
+};
+
+static int hwc_init(CNativeWindow *win) {
+ hw_module_t const* module;
+ hwc_composer_device_1_t *hwc;
+ unsigned i;
+ int r;
+ uint32_t configs[32];
+ uint32_t numconfigs = 32;
+ int32_t values[8];
+
+ if (hw_get_module(HWC_HARDWARE_MODULE_ID, &module) != 0) {
+ ERROR("cannot open hw composer module\n");
+ return -ENODEV;
+ }
+
+ if (hwc_open_1(module, &hwc)) {
+ ERROR("cannot open hwc device\n");
+ return -ENODEV;
+ }
+ win->hwc = hwc;
+
+ LOG("hwc version 0x%08x\n", hwc->common.version);
+
+ if ((hwc->common.version & 0xFFFF0000) < 0x01010000) {
+ ERROR("hwc version less than 1.1\n");
+ hwc_close_1(hwc);
+ return -ENODEV;
+ }
+
+ hwc->registerProcs(hwc, &hprocs);
+
+ if (hwc->getDisplayConfigs(hwc, 0, configs, &numconfigs)) {
+ ERROR("cannot get configs\n");
+ return -ENODEV;
+ }
+ for (i = 0; i < numconfigs; i++)
+ LOG("cfg[%d] = 0x%08x\n", i, configs[i]);
+
+ if ((r = hwc->getDisplayAttributes(hwc, 0, configs[0], attrs, values))) {
+ ERROR("cannot get attributes %d\n", r);
+ return -ENODEV;
+ }
+
+ win->width = values[0];
+ win->height = values[1];
+ win->xdpi = values[3];
+ win->ydpi = values[4];
+ win->format = HAL_PIXEL_FORMAT_RGBA_8888;
+
+ hwc->blank(hwc, 0, 0);
+
+ win->dclist[0] = &(win->dc);
+ return 0;
+}
+
+static aBuffer *cnw_alloc(CNativeWindow *win, unsigned format, unsigned usage) {
+ CNativeBuffer *cnb;
+ aBuffer *buf;
+ int err;
+
+ if (!(cnb = malloc(sizeof(CNativeBuffer))))
+ return 0;
+
+ buf = &cnb->base;
+ cnb->ffd = -1;
+
+ buf->common.magic = ANDROID_NATIVE_BUFFER_MAGIC;
+ buf->common.version = sizeof(aBuffer);
+ buf->common.incRef = cnw_inc_ref;
+ buf->common.decRef = cnw_dec_ref;
+
+ buf->width = win->width;
+ buf->height = win->height;
+ buf->format = format;
+ buf->usage = usage;
+
+ err = win->gr->alloc(win->gr, win->width, win->height,
+ format, usage, &buf->handle, &buf->stride);
+ if (err) {
+ ERROR("gralloc of %d x %d failed: err=%d\n",
+ win->width, win->height, err);
+ free(buf);
+ return 0;
+ }
+ INFO("alloc buffer %p %d x %d\n", buf, win->width, win->height);
+ return buf;
+}
+
+static int cnw_init(CNativeWindow *win) {
+ hw_module_t const* module;
+ framebuffer_device_t *fb = NULL;
+ alloc_device_t *gr;
+ int err, i, n;
+ unsigned usage, format;
+
+ memset(win, 0, sizeof(CNativeWindow));
+
+ win->free_buffer_queue.next = &(win->free_buffer_queue);
+ win->free_buffer_queue.prev = &(win->free_buffer_queue);
+
+ if (hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &module) != 0) {
+ ERROR("cannot open gralloc module\n");
+ return -ENODEV;
+ }
+
+ if (hwc_init(win)) {
+ ERROR("cannot open hwcomposer, trying legacy fb HAL\n");
+ err = framebuffer_open(module, &fb);
+ if (err) {
+ ERROR("cannot open fb HAL (%s)", strerror(-err));
+ return -ENODEV;
+ }
+ win->width = fb->width;
+ win->height = fb->height;
+ win->format = fb->format;
+ win->xdpi = fb->xdpi;
+ win->ydpi = fb->ydpi;
+ win->fb = fb;
+ }
+
+ INFO("display %d x %d fmt=%d\n",
+ win->width, win->height, win->format);
+
+ err = gralloc_open(module, &gr);
+ if (err) {
+ ERROR("couldn't open gralloc HAL (%s)", strerror(-err));
+ return -ENODEV;
+ }
+ win->gr = gr;
+
+ usage = GRALLOC_USAGE_HW_FB |
+ GRALLOC_USAGE_HW_COMPOSER |
+ GRALLOC_USAGE_HW_RENDER;
+
+ for (i = 0; i < 2; i++) {
+ aBuffer *buf = cnw_alloc(win, win->format, usage);
+ if (!buf)
+ return -ENOMEM;
+ put_back(&win->free_buffer_queue, buf);
+ }
+
+ if (!win->fb && QCT_WORKAROUND) {
+ win->spare = cnw_alloc(win, win->format, usage);
+ if (!win->spare)
+ return -ENOMEM;
+ }
+
+ // Disgusting, but we need to init these "const" fields
+ // and unlike C++ we can't use const_cast<>
+ *((float*) &win->base.xdpi) = win->xdpi;
+ *((float*) &win->base.ydpi) = win->ydpi;
+ *((int*) &win->base.minSwapInterval) = 1;
+ *((int*) &win->base.maxSwapInterval) = 1;
+
+ win->base.common.magic = ANDROID_NATIVE_WINDOW_MAGIC;
+ win->base.common.version = sizeof(aWindow);
+ win->base.common.incRef = cnw_inc_ref;
+ win->base.common.decRef = cnw_dec_ref;
+
+ win->base.setSwapInterval = cnw_set_swap_interval;
+ win->base.dequeueBuffer_DEPRECATED = cnw_dequeue_buffer0;
+ win->base.lockBuffer_DEPRECATED = cnw_lock_buffer0;
+ win->base.queueBuffer_DEPRECATED = cnw_queue_buffer0;
+ win->base.query = cnw_query;
+ win->base.perform = cnw_perform;
+ win->base.cancelBuffer_DEPRECATED = cnw_cancel_buffer0;
+ win->base.dequeueBuffer = cnw_dequeue_buffer1;
+ win->base.queueBuffer = cnw_queue_buffer1;
+ win->base.cancelBuffer = cnw_cancel_buffer1;
+
+ pthread_mutex_init(&win->lock, NULL);
+ pthread_cond_init(&win->cvar, NULL);
+
+ return 0;
+}
+
+void cnw_destroy(CNativeWindow *win) {
+ if (win->fb)
+ framebuffer_close(win->fb);
+ if (win->hwc)
+ hwc_close_1(win->hwc);
+ if (win->gr)
+ gralloc_close(win->gr);
+ free(win);
+}
+
+CNativeWindow *cnw_create(void) {
+ CNativeWindow *win;
+ char *x;
+ if ((x = getenv("CNWDEBUG")))
+ trace_level = atoi(x);
+ if (!(win = malloc(sizeof(CNativeWindow))))
+ return NULL;
+ if (cnw_init(win)) {
+ cnw_destroy(win);
+ return NULL;
+ }
+ return win;
+}
+
+void cnw_info(CNativeWindow *win, unsigned *w, unsigned *h, unsigned *fmt) {
+ *w = win->width;
+ *h = win->height;
+ *fmt = win->format;
+}
+