hwc_utils.cpp revision 661a58f851b67427ab55e65610fb9173562c7043 
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
18#include <EGL/egl.h>
19#include <overlay.h>
20#include <cutils/properties.h>
21#include <gralloc_priv.h>
22#include <fb_priv.h>
23#include "hwc_utils.h"
24#include "mdp_version.h"
25#include "hwc_video.h"
26#include "hwc_qbuf.h"
27#include "hwc_copybit.h"
28#include "hwc_external.h"
29#include "hwc_mdpcomp.h"
30#include "hwc_extonly.h"
31
32namespace qhwc {
33
34// Opens Framebuffer device
35static void openFramebufferDevice(hwc_context_t *ctx)
36{
37    hw_module_t const *module;
38    if (hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &module) == 0) {
39        framebuffer_open(module, &(ctx->mFbDev));
40    }
41}
42
43void initContext(hwc_context_t *ctx)
44{
45    openFramebufferDevice(ctx);
46    ctx->mOverlay = overlay::Overlay::getInstance();
47    ctx->qbuf = new QueuedBufferStore();
48    ctx->mMDP.version = qdutils::MDPVersion::getInstance().getMDPVersion();
49    ctx->mMDP.hasOverlay = qdutils::MDPVersion::getInstance().hasOverlay();
50    ctx->mMDP.panel = qdutils::MDPVersion::getInstance().getPanelType();
51    ctx->mExtDisplay = new ExternalDisplay(ctx);
52    memset(ctx->dpys,(int)EGL_NO_DISPLAY, MAX_NUM_DISPLAYS);
53    MDPComp::init(ctx);
54
55    ALOGI("Initializing Qualcomm Hardware Composer");
56    ALOGI("MDP version: %d", ctx->mMDP.version);
57}
58
59void closeContext(hwc_context_t *ctx)
60{
61    if(ctx->mOverlay) {
62        delete ctx->mOverlay;
63        ctx->mOverlay = NULL;
64    }
65
66    if(ctx->mCopybitEngine) {
67        delete ctx->mCopybitEngine;
68        ctx->mCopybitEngine = NULL;
69    }
70
71    if(ctx->mFbDev) {
72        framebuffer_close(ctx->mFbDev);
73        ctx->mFbDev = NULL;
74    }
75
76    if(ctx->qbuf) {
77        delete ctx->qbuf;
78        ctx->qbuf = NULL;
79    }
80
81    if(ctx->mExtDisplay) {
82        delete ctx->mExtDisplay;
83        ctx->mExtDisplay = NULL;
84    }
85}
86
87void dumpLayer(hwc_layer_1_t const* l)
88{
89    ALOGD("\ttype=%d, flags=%08x, handle=%p, tr=%02x, blend=%04x, {%d,%d,%d,%d}"
90          ", {%d,%d,%d,%d}",
91          l->compositionType, l->flags, l->handle, l->transform, l->blending,
92          l->sourceCrop.left,
93          l->sourceCrop.top,
94          l->sourceCrop.right,
95          l->sourceCrop.bottom,
96          l->displayFrame.left,
97          l->displayFrame.top,
98          l->displayFrame.right,
99          l->displayFrame.bottom);
100}
101
102void getLayerStats(hwc_context_t *ctx, const hwc_display_contents_1_t *list)
103{
104    //Video specific stats
105    int yuvCount = 0;
106    int yuvLayerIndex = -1;
107    bool isYuvLayerSkip = false;
108    int skipCount = 0;
109    int ccLayerIndex = -1; //closed caption
110    int extLayerIndex = -1; //ext-only or block except closed caption
111    int extCount = 0; //ext-only except closed caption
112    bool isExtBlockPresent = false; //is BLOCK layer present
113    bool yuvSecure = false;
114
115    for (size_t i = 0; i < list->numHwLayers; i++) {
116        private_handle_t *hnd =
117            (private_handle_t *)list->hwLayers[i].handle;
118
119        if (UNLIKELY(isYuvBuffer(hnd))) {
120            yuvCount++;
121            yuvLayerIndex = i;
122            yuvSecure = isSecureBuffer(hnd);
123            //Animating
124            //Do not mark as SKIP if it is secure buffer
125            if (isSkipLayer(&list->hwLayers[i]) && !yuvSecure) {
126                isYuvLayerSkip = true;
127            }
128        } else if(UNLIKELY(isExtCC(hnd))) {
129            ccLayerIndex = i;
130        } else if(UNLIKELY(isExtBlock(hnd))) {
131            extCount++;
132            extLayerIndex = i;
133            isExtBlockPresent = true;
134        } else if(UNLIKELY(isExtOnly(hnd))) {
135            extCount++;
136            //If BLOCK layer present, dont cache index, display BLOCK only.
137            if(isExtBlockPresent == false) extLayerIndex = i;
138        } else if (isSkipLayer(&list->hwLayers[i])) { //Popups
139            //If video layer is below a skip layer
140            if(yuvLayerIndex != -1 && yuvLayerIndex < (ssize_t)i) {
141                //Do not mark as SKIP if it is secure buffer
142                if (!yuvSecure) {
143                    isYuvLayerSkip = true;
144                    skipCount++;
145                }
146            }
147        }
148    }
149
150    VideoOverlay::setStats(yuvCount, yuvLayerIndex, isYuvLayerSkip,
151            ccLayerIndex);
152    ExtOnly::setStats(extCount, extLayerIndex, isExtBlockPresent);
153    CopyBit::setStats(yuvCount, yuvLayerIndex, isYuvLayerSkip);
154    MDPComp::setStats(skipCount);
155
156    ctx->numHwLayers = list->numHwLayers;
157    return;
158}
159
160//Crops source buffer against destination and FB boundaries
161void calculate_crop_rects(hwc_rect_t& crop, hwc_rect_t& dst,
162        const int fbWidth, const int fbHeight) {
163
164    int& crop_x = crop.left;
165    int& crop_y = crop.top;
166    int& crop_r = crop.right;
167    int& crop_b = crop.bottom;
168    int crop_w = crop.right - crop.left;
169    int crop_h = crop.bottom - crop.top;
170
171    int& dst_x = dst.left;
172    int& dst_y = dst.top;
173    int& dst_r = dst.right;
174    int& dst_b = dst.bottom;
175    int dst_w = dst.right - dst.left;
176    int dst_h = dst.bottom - dst.top;
177
178    if(dst_x < 0) {
179        float scale_x =  crop_w * 1.0f / dst_w;
180        float diff_factor = (scale_x * abs(dst_x));
181        crop_x = crop_x + (int)diff_factor;
182        crop_w = crop_r - crop_x;
183
184        dst_x = 0;
185        dst_w = dst_r - dst_x;;
186    }
187    if(dst_r > fbWidth) {
188        float scale_x = crop_w * 1.0f / dst_w;
189        float diff_factor = scale_x * (dst_r - fbWidth);
190        crop_r = crop_r - diff_factor;
191        crop_w = crop_r - crop_x;
192
193        dst_r = fbWidth;
194        dst_w = dst_r - dst_x;
195    }
196    if(dst_y < 0) {
197        float scale_y = crop_h * 1.0f / dst_h;
198        float diff_factor = scale_y * abs(dst_y);
199        crop_y = crop_y + diff_factor;
200        crop_h = crop_b - crop_y;
201
202        dst_y = 0;
203        dst_h = dst_b - dst_y;
204    }
205    if(dst_b > fbHeight) {
206        float scale_y = crop_h * 1.0f / dst_h;
207        float diff_factor = scale_y * (dst_b - fbHeight);
208        crop_b = crop_b - diff_factor;
209        crop_h = crop_b - crop_y;
210
211        dst_b = fbHeight;
212        dst_h = dst_b - dst_y;
213    }
214}
215
216void wait4fbPost(hwc_context_t* ctx) {
217    framebuffer_device_t *fbDev = ctx->mFbDev;
218    if(fbDev) {
219        private_module_t* m = reinterpret_cast<private_module_t*>(
220                              fbDev->common.module);
221        //wait for the fb_post to be called
222        pthread_mutex_lock(&m->fbPostLock);
223        while(m->fbPostDone == false) {
224            pthread_cond_wait(&(m->fbPostCond), &(m->fbPostLock));
225        }
226        m->fbPostDone = false;
227        pthread_mutex_unlock(&m->fbPostLock);
228    }
229}
230
231void wait4Pan(hwc_context_t* ctx) {
232    framebuffer_device_t *fbDev = ctx->mFbDev;
233    if(fbDev) {
234        private_module_t* m = reinterpret_cast<private_module_t*>(
235                              fbDev->common.module);
236        //wait for the fb_post's PAN to finish
237        pthread_mutex_lock(&m->fbPanLock);
238        while(m->fbPanDone == false) {
239            pthread_cond_wait(&(m->fbPanCond), &(m->fbPanLock));
240        }
241        m->fbPanDone = false;
242        pthread_mutex_unlock(&m->fbPanLock);
243    }
244}
245};//namespace
246