1 /*
2 * Copyright (C) 2010 The Android Open Source Project
3 * Copyright (C) 2012, Code Aurora Forum. All rights reserved.
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17 #ifndef HWC_VIDEO_H
18 #define HWC_VIDEO_H
19
20 #include "hwc_utils.h"
21 #include "overlayUtils.h"
22
23 #define LIKELY( exp ) (__builtin_expect( (exp) != 0, true ))
24 #define UNLIKELY( exp ) (__builtin_expect( (exp) != 0, false ))
25
26 namespace qhwc {
27 namespace ovutils = overlay::utils;
28
29 //Feature for using overlay to display videos.
30 class VideoOverlay {
31 public:
32 //Sets up members and prepares overlay if conditions are met
33 static bool prepare(hwc_context_t *ctx, hwc_display_contents_1_t *list,
34 int dpy);
35 //Draws layer if this feature is on
36 static bool draw(hwc_context_t *ctx, hwc_display_contents_1_t *list,
37 int dpy);
38 //resets values
39 static void reset();
40 private:
41 //Configures overlay for video prim and ext
42 static bool configure(hwc_context_t *ctx, int dpy,
43 hwc_layer_1_t *yuvlayer);
44
45 //Marks layer flags if this feature is used
46 static void markFlags(hwc_layer_1_t *yuvLayer);
47 //Flags if this feature is on.
48 static bool sIsModeOn[HWC_NUM_DISPLAY_TYPES];
49 static ovutils::eDest sDest[HWC_NUM_DISPLAY_TYPES];
50 };
51
reset()52 inline void VideoOverlay::reset() {
53 for(uint32_t i = 0; i < HWC_NUM_DISPLAY_TYPES; i++) {
54 sIsModeOn[i] = false;
55 sDest[i] = ovutils::OV_INVALID;
56 }
57 }
58 }; //namespace qhwc
59
60 #endif //HWC_VIDEO_H
61