1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/media/omx-plugin/include/ics/hardware/fb.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,164 @@
1.4 +/*
1.5 + * Copyright (C) 2008 The Android Open Source Project
1.6 + *
1.7 + * Licensed under the Apache License, Version 2.0 (the "License");
1.8 + * you may not use this file except in compliance with the License.
1.9 + * You may obtain a copy of the License at
1.10 + *
1.11 + * http://www.apache.org/licenses/LICENSE-2.0
1.12 + *
1.13 + * Unless required by applicable law or agreed to in writing, software
1.14 + * distributed under the License is distributed on an "AS IS" BASIS,
1.15 + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
1.16 + * See the License for the specific language governing permissions and
1.17 + * limitations under the License.
1.18 + */
1.19 +
1.20 +
1.21 +#ifndef ANDROID_FB_INTERFACE_H
1.22 +#define ANDROID_FB_INTERFACE_H
1.23 +
1.24 +#include <stdint.h>
1.25 +#include <sys/cdefs.h>
1.26 +#include <sys/types.h>
1.27 +
1.28 +#include <cutils/native_handle.h>
1.29 +
1.30 +#include <hardware/hardware.h>
1.31 +
1.32 +__BEGIN_DECLS
1.33 +
1.34 +#define GRALLOC_HARDWARE_FB0 "fb0"
1.35 +
1.36 +/*****************************************************************************/
1.37 +
1.38 +
1.39 +/*****************************************************************************/
1.40 +
1.41 +typedef struct framebuffer_device_t {
1.42 + struct hw_device_t common;
1.43 +
1.44 + /* flags describing some attributes of the framebuffer */
1.45 + const uint32_t flags;
1.46 +
1.47 + /* dimensions of the framebuffer in pixels */
1.48 + const uint32_t width;
1.49 + const uint32_t height;
1.50 +
1.51 + /* frambuffer stride in pixels */
1.52 + const int stride;
1.53 +
1.54 + /* framebuffer pixel format */
1.55 + const int format;
1.56 +
1.57 + /* resolution of the framebuffer's display panel in pixel per inch*/
1.58 + const float xdpi;
1.59 + const float ydpi;
1.60 +
1.61 + /* framebuffer's display panel refresh rate in frames per second */
1.62 + const float fps;
1.63 +
1.64 + /* min swap interval supported by this framebuffer */
1.65 + const int minSwapInterval;
1.66 +
1.67 + /* max swap interval supported by this framebuffer */
1.68 + const int maxSwapInterval;
1.69 +
1.70 + int reserved[8];
1.71 +
1.72 + /*
1.73 + * requests a specific swap-interval (same definition than EGL)
1.74 + *
1.75 + * Returns 0 on success or -errno on error.
1.76 + */
1.77 + int (*setSwapInterval)(struct framebuffer_device_t* window,
1.78 + int interval);
1.79 +
1.80 + /*
1.81 + * This hook is OPTIONAL.
1.82 + *
1.83 + * It is non NULL If the framebuffer driver supports "update-on-demand"
1.84 + * and the given rectangle is the area of the screen that gets
1.85 + * updated during (*post)().
1.86 + *
1.87 + * This is useful on devices that are able to DMA only a portion of
1.88 + * the screen to the display panel, upon demand -- as opposed to
1.89 + * constantly refreshing the panel 60 times per second, for instance.
1.90 + *
1.91 + * Only the area defined by this rectangle is guaranteed to be valid, that
1.92 + * is, the driver is not allowed to post anything outside of this
1.93 + * rectangle.
1.94 + *
1.95 + * The rectangle evaluated during (*post)() and specifies which area
1.96 + * of the buffer passed in (*post)() shall to be posted.
1.97 + *
1.98 + * return -EINVAL if width or height <=0, or if left or top < 0
1.99 + */
1.100 + int (*setUpdateRect)(struct framebuffer_device_t* window,
1.101 + int left, int top, int width, int height);
1.102 +
1.103 + /*
1.104 + * Post <buffer> to the display (display it on the screen)
1.105 + * The buffer must have been allocated with the
1.106 + * GRALLOC_USAGE_HW_FB usage flag.
1.107 + * buffer must be the same width and height as the display and must NOT
1.108 + * be locked.
1.109 + *
1.110 + * The buffer is shown during the next VSYNC.
1.111 + *
1.112 + * If the same buffer is posted again (possibly after some other buffer),
1.113 + * post() will block until the the first post is completed.
1.114 + *
1.115 + * Internally, post() is expected to lock the buffer so that a
1.116 + * subsequent call to gralloc_module_t::(*lock)() with USAGE_RENDER or
1.117 + * USAGE_*_WRITE will block until it is safe; that is typically once this
1.118 + * buffer is shown and another buffer has been posted.
1.119 + *
1.120 + * Returns 0 on success or -errno on error.
1.121 + */
1.122 + int (*post)(struct framebuffer_device_t* dev, buffer_handle_t buffer);
1.123 +
1.124 +
1.125 + /*
1.126 + * The (*compositionComplete)() method must be called after the
1.127 + * compositor has finished issuing GL commands for client buffers.
1.128 + */
1.129 +
1.130 + int (*compositionComplete)(struct framebuffer_device_t* dev);
1.131 +
1.132 + /*
1.133 + * This hook is OPTIONAL.
1.134 + *
1.135 + * If non NULL it will be caused by SurfaceFlinger on dumpsys
1.136 + */
1.137 + void (*dump)(struct framebuffer_device_t* dev, char *buff, int buff_len);
1.138 +
1.139 + /*
1.140 + * (*enableScreen)() is used to either blank (enable=0) or
1.141 + * unblank (enable=1) the screen this framebuffer is attached to.
1.142 + *
1.143 + * Returns 0 on success or -errno on error.
1.144 + */
1.145 + int (*enableScreen)(struct framebuffer_device_t* dev, int enable);
1.146 +
1.147 + void* reserved_proc[6];
1.148 +
1.149 +} framebuffer_device_t;
1.150 +
1.151 +
1.152 +/** convenience API for opening and closing a supported device */
1.153 +
1.154 +static inline int framebuffer_open(const struct hw_module_t* module,
1.155 + struct framebuffer_device_t** device) {
1.156 + return module->methods->open(module,
1.157 + GRALLOC_HARDWARE_FB0, (struct hw_device_t**)device);
1.158 +}
1.159 +
1.160 +static inline int framebuffer_close(struct framebuffer_device_t* device) {
1.161 + return device->common.close(&device->common);
1.162 +}
1.163 +
1.164 +
1.165 +__END_DECLS
1.166 +
1.167 +#endif // ANDROID_FB_INTERFACE_H
