author | Lawrence Mok <lawrence.mok@amlogic.com> | 2011-11-19 00:25:01 (GMT) |
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committer | Lawrence Mok <lawrence.mok@amlogic.com> | 2011-11-19 00:25:01 (GMT) |
commit | 838ea4f47a9c7374ca632987b36c18c8765212eb (patch) | |
tree | 63da17669255f8257ee1937294e6d5eb2958eba7 | |
download | hwcomposer-838ea4f47a9c7374ca632987b36c18c8765212eb.zip hwcomposer-838ea4f47a9c7374ca632987b36c18c8765212eb.tar.gz hwcomposer-838ea4f47a9c7374ca632987b36c18c8765212eb.tar.bz2 |
Initial commit
-rw-r--r-- | Android.mk | 16 | ||||
-rw-r--r-- | hwcomposer.cpp | 149 |
2 files changed, 165 insertions, 0 deletions
diff --git a/Android.mk b/Android.mk new file mode 100644 index 0000000..ca49683 --- a/dev/null +++ b/Android.mk @@ -0,0 +1,16 @@ +# Copyright (C) 2011 Amlogic +# +# + +LOCAL_PATH := $(call my-dir) + +# HAL module implemenation, not prelinked and stored in +# /system/lib/hw/hwcomposer.amlogic.so +include $(CLEAR_VARS) +LOCAL_MODULE_PATH := $(TARGET_OUT_SHARED_LIBRARIES)/hw +LOCAL_SHARED_LIBRARIES := liblog libEGL +LOCAL_SRC_FILES := hwcomposer.cpp +LOCAL_MODULE := hwcomposer.amlogic +LOCAL_CFLAGS:= -DLOG_TAG=\"hwcomposer\" +LOCAL_MODULE_TAGS := optional +include $(BUILD_SHARED_LIBRARY) diff --git a/hwcomposer.cpp b/hwcomposer.cpp new file mode 100644 index 0000000..7585ee7 --- a/dev/null +++ b/hwcomposer.cpp @@ -0,0 +1,149 @@ +/* + * Copyright (C) 2010 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. + */ + +//#define LOG_NDEBUG 0 +#define LOG_TAG "hwcomposer" +#include <hardware/hardware.h> + +#include <fcntl.h> +#include <errno.h> + +#include <cutils/log.h> +#include <cutils/atomic.h> + +#include <hardware/hwcomposer.h> + +#include <EGL/egl.h> + +// for private_handle_t and PRIV_FLAGS_VIDEO_HOLE +#include "../../libhardware/modules/gralloc/gralloc_priv.h" + +/*****************************************************************************/ + +struct hwc_context_t { + hwc_composer_device_t device; + /* our private state goes below here */ +}; + +static int hwc_device_open(const struct hw_module_t* module, const char* name, + struct hw_device_t** device); + +static struct hw_module_methods_t hwc_module_methods = { + open: hwc_device_open +}; + +hwc_module_t HAL_MODULE_INFO_SYM = { + common: { + tag: HARDWARE_MODULE_TAG, + version_major: 1, + version_minor: 0, + id: HWC_HARDWARE_MODULE_ID, + name: "hwcomposer module", + author: "Amlogic", + methods: &hwc_module_methods, + dso : NULL, + reserved : {0}, + } +}; + +/*****************************************************************************/ + +static void dump_layer(hwc_layer_t const* l) { + LOGD("\ttype=%d, flags=%08x, handle=%p, tr=%02x, blend=%04x, {%d,%d,%d,%d}, {%d,%d,%d,%d}", + l->compositionType, l->flags, l->handle, l->transform, l->blending, + l->sourceCrop.left, + l->sourceCrop.top, + l->sourceCrop.right, + l->sourceCrop.bottom, + l->displayFrame.left, + l->displayFrame.top, + l->displayFrame.right, + l->displayFrame.bottom); +} + +static int hwc_prepare(hwc_composer_device_t *dev, hwc_layer_list_t* list) { + if (list && (list->flags & HWC_GEOMETRY_CHANGED)) { + for (size_t i=0 ; i<list->numHwLayers ; i++) { + hwc_layer_t* l = &list->hwLayers[i]; + //dump_layer(l); + + if (l->handle) { + private_handle_t const* hnd = reinterpret_cast<private_handle_t const*>(l->handle); + if (hnd->flags & private_handle_t::PRIV_FLAGS_VIDEO_HOLE) { + l->hints |= HWC_HINT_CLEAR_FB; + l->compositionType = HWC_OVERLAY; + //LOGD("hnd=%#x flags=%d l->hints |= HWC_HINT_CLEAR_FB", hnd, hnd->flags); + return 0; + } + } + l->compositionType = HWC_FRAMEBUFFER; + } + } + return 0; +} + +static int hwc_set(hwc_composer_device_t *dev, + hwc_display_t dpy, + hwc_surface_t sur, + hwc_layer_list_t* list) +{ + //for (size_t i=0 ; i<list->numHwLayers ; i++) { + // dump_layer(&list->hwLayers[i]); + //} + + EGLBoolean sucess = eglSwapBuffers((EGLDisplay)dpy, (EGLSurface)sur); + if (!sucess) { + return HWC_EGL_ERROR; + } + return 0; +} + +static int hwc_device_close(struct hw_device_t *dev) +{ + struct hwc_context_t* ctx = (struct hwc_context_t*)dev; + if (ctx) { + free(ctx); + } + return 0; +} + +/*****************************************************************************/ + +static int hwc_device_open(const struct hw_module_t* module, const char* name, + struct hw_device_t** device) +{ + int status = -EINVAL; + if (!strcmp(name, HWC_HARDWARE_COMPOSER)) { + struct hwc_context_t *dev; + dev = (hwc_context_t*)malloc(sizeof(*dev)); + + /* initialize our state here */ + 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 = hwc_device_close; + + dev->device.prepare = hwc_prepare; + dev->device.set = hwc_set; + + *device = &dev->device.common; + status = 0; + } + return status; +} |