Integrate from //sandbox/mathias/donut/...@145728
SurfaceFlinger rework for new EGL driver model support.
diff --git a/modules/gralloc/framebuffer.cpp b/modules/gralloc/framebuffer.cpp
new file mode 100644
index 0000000..05b9418
--- /dev/null
+++ b/modules/gralloc/framebuffer.cpp
@@ -0,0 +1,356 @@
+/*
+ * Copyright (C) 2008 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 <sys/mman.h>
+
+#include <dlfcn.h>
+
+#include <cutils/ashmem.h>
+#include <cutils/log.h>
+
+#include <hardware/hardware.h>
+#include <hardware/gralloc.h>
+
+#include <fcntl.h>
+#include <errno.h>
+
+#include <cutils/log.h>
+#include <cutils/atomic.h>
+
+#if HAVE_ANDROID_OS
+#include <linux/fb.h>
+#endif
+
+#include "gralloc_priv.h"
+
+/*****************************************************************************/
+
+#define NUM_BUFFERS 2
+
+
+enum {
+ PAGE_FLIP = 0x00000001,
+ LOCKED = 0x00000002
+};
+
+struct fb_context_t {
+ framebuffer_device_t device;
+};
+
+/*****************************************************************************/
+
+static int fb_setSwapInterval(struct framebuffer_device_t* dev,
+ int interval)
+{
+ fb_context_t* ctx = (fb_context_t*)dev;
+ if (interval < dev->minSwapInterval || interval > dev->maxSwapInterval)
+ return -EINVAL;
+ // FIXME: implement fb_setSwapInterval
+ return 0;
+}
+
+static int fb_setUpdateRect(struct framebuffer_device_t* dev,
+ int l, int t, int w, int h)
+{
+ if (((w|h) <= 0) || ((l|t)<0))
+ return -EINVAL;
+
+ fb_context_t* ctx = (fb_context_t*)dev;
+ private_module_t* m = reinterpret_cast<private_module_t*>(
+ dev->common.module);
+ m->info.reserved[0] = 0x54445055; // "UPDT";
+ m->info.reserved[1] = (uint16_t)l | ((uint32_t)t << 16);
+ m->info.reserved[2] = (uint16_t)(l+w) | ((uint32_t)(t+h) << 16);
+ return 0;
+}
+
+static int fb_post(struct framebuffer_device_t* dev, buffer_handle_t buffer)
+{
+ if (private_handle_t::validate(buffer) < 0)
+ return -EINVAL;
+
+ fb_context_t* ctx = (fb_context_t*)dev;
+
+ private_handle_t const* hnd = reinterpret_cast<private_handle_t const*>(buffer);
+ private_module_t* m = reinterpret_cast<private_module_t*>(
+ dev->common.module);
+
+ if (m->currentBuffer) {
+ m->base.unlock(&m->base, m->currentBuffer);
+ m->currentBuffer = 0;
+ }
+
+ if (hnd->flags & private_handle_t::PRIV_FLAGS_FRAMEBUFFER) {
+
+ m->base.lock(&m->base, buffer,
+ private_module_t::PRIV_USAGE_LOCKED_FOR_POST,
+ 0, 0, m->info.xres, m->info.yres);
+
+ const size_t offset = hnd->base - m->framebuffer->base;
+ m->info.activate = FB_ACTIVATE_VBL;
+ m->info.yoffset = offset / m->finfo.line_length;
+ if (ioctl(m->framebuffer->fd, FBIOPUT_VSCREENINFO, &m->info) == -1) {
+ LOGE("FBIOPUT_VSCREENINFO failed");
+ m->base.unlock(&m->base, buffer);
+ return -errno;
+ }
+ m->currentBuffer = buffer;
+
+ } else {
+ // If we can't do the page_flip, just copy the buffer to the front
+ // FIXME: use copybit HAL instead of memcpy
+
+ m->base.lock(&m->base, buffer,
+ private_module_t::PRIV_USAGE_LOCKED_FOR_POST,
+ 0, 0, m->info.xres, m->info.yres);
+
+ memcpy((void*)m->framebuffer->base, (void*)hnd->base,
+ m->finfo.line_length * m->info.yres);
+
+ m->base.unlock(&m->base, buffer);
+ }
+
+ return 0;
+}
+
+/*****************************************************************************/
+
+int mapFrameBufferLocked(struct private_module_t* module)
+{
+ // already initialized...
+ if (module->framebuffer) {
+ return 0;
+ }
+
+ char const * const device_template[] = {
+ "/dev/graphics/fb%u",
+ "/dev/fb%u",
+ 0 };
+
+ int fd = -1;
+ int i=0;
+ char name[64];
+
+ while ((fd==-1) && device_template[i]) {
+ snprintf(name, 64, device_template[i], 0);
+ fd = open(name, O_RDWR, 0);
+ i++;
+ }
+ if (fd < 0)
+ return -errno;
+
+ struct fb_fix_screeninfo finfo;
+ if (ioctl(fd, FBIOGET_FSCREENINFO, &finfo) == -1)
+ return -errno;
+
+ struct fb_var_screeninfo info;
+ if (ioctl(fd, FBIOGET_VSCREENINFO, &info) == -1)
+ return -errno;
+
+ info.reserved[0] = 0;
+ info.reserved[1] = 0;
+ info.reserved[2] = 0;
+ info.xoffset = 0;
+ info.yoffset = 0;
+ info.activate = FB_ACTIVATE_NOW;
+
+ /*
+ * Explicitly request 5/6/5
+ */
+ info.bits_per_pixel = 16;
+ info.red.offset = 11;
+ info.red.length = 5;
+ info.green.offset = 5;
+ info.green.length = 6;
+ info.blue.offset = 0;
+ info.blue.length = 5;
+ info.transp.offset = 0;
+ info.transp.length = 0;
+
+ /*
+ * Request NUM_BUFFERS screens (at lest 2 for page flipping)
+ */
+ info.yres_virtual = info.yres * NUM_BUFFERS;
+
+
+ uint32_t flags = PAGE_FLIP;
+ if (ioctl(fd, FBIOPUT_VSCREENINFO, &info) == -1) {
+ info.yres_virtual = info.yres;
+ flags &= ~PAGE_FLIP;
+ LOGW("FBIOPUT_VSCREENINFO failed, page flipping not supported");
+ }
+
+ if (info.yres_virtual < info.yres * 2) {
+ // we need at least 2 for page-flipping
+ info.yres_virtual = info.yres;
+ flags &= ~PAGE_FLIP;
+ LOGW("page flipping not supported (yres_virtual=%d, requested=%d)",
+ info.yres_virtual, info.yres*2);
+ }
+
+ if (ioctl(fd, FBIOGET_VSCREENINFO, &info) == -1)
+ return -errno;
+
+ int refreshRate = 1000000000000000LLU /
+ (
+ uint64_t( info.upper_margin + info.lower_margin + info.yres )
+ * ( info.left_margin + info.right_margin + info.xres )
+ * info.pixclock
+ );
+
+ if (refreshRate == 0) {
+ // bleagh, bad info from the driver
+ refreshRate = 60*1000; // 60 Hz
+ }
+
+ if (int(info.width) <= 0 || int(info.height) <= 0) {
+ // the driver doesn't return that information
+ // default to 160 dpi
+ info.width = ((info.xres * 25.4f)/160.0f + 0.5f);
+ info.height = ((info.yres * 25.4f)/160.0f + 0.5f);
+ }
+
+ float xdpi = (info.xres * 25.4f) / info.width;
+ float ydpi = (info.yres * 25.4f) / info.height;
+ float fps = refreshRate / 1000.0f;
+
+ LOGI( "using (fd=%d)\n"
+ "id = %s\n"
+ "xres = %d px\n"
+ "yres = %d px\n"
+ "xres_virtual = %d px\n"
+ "yres_virtual = %d px\n"
+ "bpp = %d\n"
+ "r = %2u:%u\n"
+ "g = %2u:%u\n"
+ "b = %2u:%u\n",
+ fd,
+ finfo.id,
+ info.xres,
+ info.yres,
+ info.xres_virtual,
+ info.yres_virtual,
+ info.bits_per_pixel,
+ info.red.offset, info.red.length,
+ info.green.offset, info.green.length,
+ info.blue.offset, info.blue.length
+ );
+
+ LOGI( "width = %d mm (%f dpi)\n"
+ "height = %d mm (%f dpi)\n"
+ "refresh rate = %.2f Hz\n",
+ info.width, xdpi,
+ info.height, ydpi,
+ fps
+ );
+
+
+ if (ioctl(fd, FBIOGET_FSCREENINFO, &finfo) == -1)
+ return -errno;
+
+ if (finfo.smem_len <= 0)
+ return -errno;
+
+
+ module->flags = flags;
+ module->info = info;
+ module->finfo = finfo;
+ module->xdpi = xdpi;
+ module->ydpi = ydpi;
+ module->fps = fps;
+
+ /*
+ * map the framebuffer
+ */
+
+ int err;
+ size_t fbSize = roundUpToPageSize(finfo.line_length * info.yres_virtual);
+ module->framebuffer = new private_handle_t(dup(fd), fbSize,
+ private_handle_t::PRIV_FLAGS_USES_PMEM);
+
+ module->numBuffers = info.yres_virtual / info.yres;
+ module->bufferMask = 0;
+
+ void* vaddr;
+ module->base.map(&module->base, module->framebuffer, &vaddr);
+ memset(vaddr, 0, fbSize);
+
+ return 0;
+}
+
+static int mapFrameBuffer(struct private_module_t* module)
+{
+ pthread_mutex_lock(&module->lock);
+ int err = mapFrameBufferLocked(module);
+ pthread_mutex_unlock(&module->lock);
+ return err;
+}
+
+/*****************************************************************************/
+
+static int fb_close(struct hw_device_t *dev)
+{
+ fb_context_t* ctx = (fb_context_t*)dev;
+ if (ctx) {
+ free(ctx);
+ }
+ return 0;
+}
+
+int fb_device_open(hw_module_t const* module, const char* name,
+ hw_device_t** device)
+{
+ int status = -EINVAL;
+ if (!strcmp(name, GRALLOC_HARDWARE_FB0)) {
+
+ alloc_device_t* gralloc_device;
+ status = gralloc_open(module, &gralloc_device);
+ if (status < 0)
+ return status;
+
+ /* initialize our state here */
+ fb_context_t *dev = (fb_context_t*)malloc(sizeof(*dev));
+ memset(dev, 0, sizeof(*dev));
+
+ /* initialize the procs */
+ dev->device.common.tag = HARDWARE_DEVICE_TAG;
+ dev->device.common.version = 0;
+ dev->device.common.module = const_cast<hw_module_t*>(module);
+ dev->device.common.close = fb_close;
+ dev->device.setSwapInterval = fb_setSwapInterval;
+ dev->device.setUpdateRect = fb_setUpdateRect;
+ dev->device.post = fb_post;
+
+ private_module_t* m = (private_module_t*)module;
+ status = mapFrameBuffer(m);
+ if (status >= 0) {
+ int stride = m->finfo.line_length / (m->info.bits_per_pixel >> 3);
+ const_cast<uint32_t&>(dev->device.flags) = FRAMEBUFFER_FLAG_MAPPED;
+ const_cast<uint32_t&>(dev->device.width) = m->info.xres;
+ const_cast<uint32_t&>(dev->device.height) = m->info.yres;
+ const_cast<int&>(dev->device.stride) = stride;
+ const_cast<int&>(dev->device.format) = HAL_PIXEL_FORMAT_RGB_565;
+ const_cast<float&>(dev->device.xdpi) = m->xdpi;
+ const_cast<float&>(dev->device.ydpi) = m->ydpi;
+ const_cast<float&>(dev->device.fps) = m->fps;
+ const_cast<int&>(dev->device.minSwapInterval) = 1;
+ const_cast<int&>(dev->device.maxSwapInterval) = 1;
+
+ *device = &dev->device.common;
+ }
+ }
+ return status;
+}