hwc_utils.cpp revision e93587f3b9d5f1d9e7314973dbaf1120d70a3dcb 
1/*
2 * Copyright (C) 2010 The Android Open Source Project
3 * Copyright (C) 2012, The Linux Foundation 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 "external.h"
27#include "hwc_mdpcomp.h"
28#include "QService.h"
29
30namespace qhwc {
31
32// Opens Framebuffer device
33static void openFramebufferDevice(hwc_context_t *ctx)
34{
35    hw_module_t const *module;
36    if (hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &module) == 0) {
37        framebuffer_open(module, &(ctx->mFbDev));
38        private_module_t* m = reinterpret_cast<private_module_t*>(
39                ctx->mFbDev->common.module);
40        //xres, yres may not be 32 aligned
41        ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres = m->info.xres;
42        ctx->dpyAttr[HWC_DISPLAY_PRIMARY].yres = m->info.yres;
43        ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xdpi = ctx->mFbDev->xdpi;
44        ctx->dpyAttr[HWC_DISPLAY_PRIMARY].ydpi = ctx->mFbDev->ydpi;
45        ctx->dpyAttr[HWC_DISPLAY_PRIMARY].vsync_period =
46                1000000000l / ctx->mFbDev->fps;
47        ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd = openFb(HWC_DISPLAY_PRIMARY);
48    }
49}
50
51void initContext(hwc_context_t *ctx)
52{
53    openFramebufferDevice(ctx);
54    overlay::Overlay::initOverlay();
55    for(uint32_t i = 0; i < HWC_NUM_DISPLAY_TYPES; i++) {
56        ctx->mOverlay[i] = overlay::Overlay::getInstance(i);
57    }
58    ctx->mQService = qService::QService::getInstance(ctx);
59    ctx->mMDP.version = qdutils::MDPVersion::getInstance().getMDPVersion();
60    ctx->mMDP.hasOverlay = qdutils::MDPVersion::getInstance().hasOverlay();
61    ctx->mMDP.panel = qdutils::MDPVersion::getInstance().getPanelType();
62    ctx->mExtDisplay = new ExternalDisplay(ctx);
63    MDPComp::init(ctx);
64
65    pthread_mutex_init(&(ctx->vstate.lock), NULL);
66    pthread_cond_init(&(ctx->vstate.cond), NULL);
67    ctx->vstate.enable = false;
68
69    ALOGI("Initializing Qualcomm Hardware Composer");
70    ALOGI("MDP version: %d", ctx->mMDP.version);
71}
72
73void closeContext(hwc_context_t *ctx)
74{
75    for(uint32_t i = 0; i < HWC_NUM_DISPLAY_TYPES; i++) {
76        if(ctx->mOverlay[i]) {
77            delete ctx->mOverlay[i];
78            ctx->mOverlay[i] = NULL;
79        }
80    }
81
82    if(ctx->mFbDev) {
83        framebuffer_close(ctx->mFbDev);
84        ctx->mFbDev = NULL;
85        close(ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd);
86        ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd = -1;
87    }
88
89    if(ctx->mExtDisplay) {
90        delete ctx->mExtDisplay;
91        ctx->mExtDisplay = NULL;
92    }
93
94    pthread_mutex_destroy(&(ctx->vstate.lock));
95    pthread_cond_destroy(&(ctx->vstate.cond));
96
97}
98
99void dumpLayer(hwc_layer_1_t const* l)
100{
101    ALOGD("\ttype=%d, flags=%08x, handle=%p, tr=%02x, blend=%04x, {%d,%d,%d,%d}"
102          ", {%d,%d,%d,%d}",
103          l->compositionType, l->flags, l->handle, l->transform, l->blending,
104          l->sourceCrop.left,
105          l->sourceCrop.top,
106          l->sourceCrop.right,
107          l->sourceCrop.bottom,
108          l->displayFrame.left,
109          l->displayFrame.top,
110          l->displayFrame.right,
111          l->displayFrame.bottom);
112}
113
114void setListStats(hwc_context_t *ctx,
115        const hwc_display_contents_1_t *list, int dpy) {
116
117    ctx->listStats[dpy].numAppLayers = list->numHwLayers - 1;
118    ctx->listStats[dpy].fbLayerIndex = list->numHwLayers - 1;
119    ctx->listStats[dpy].yuvCount = 0;
120    ctx->listStats[dpy].yuvIndex = -1;
121    ctx->listStats[dpy].skipCount = 0;
122
123    for (size_t i = 0; i < list->numHwLayers; i++) {
124        private_handle_t *hnd =
125            (private_handle_t *)list->hwLayers[i].handle;
126
127        if(list->hwLayers[i].compositionType == HWC_FRAMEBUFFER_TARGET) {
128            continue;
129        //We disregard FB being skip for now! so the else if
130        } else if (isSkipLayer(&list->hwLayers[i])) {
131            ctx->listStats[dpy].skipCount++;
132        }
133
134        if (UNLIKELY(isYuvBuffer(hnd))) {
135            ctx->listStats[dpy].yuvCount++;
136            ctx->listStats[dpy].yuvIndex = i;
137        }
138    }
139}
140
141static inline void calc_cut(float& leftCutRatio, float& topCutRatio,
142        float& rightCutRatio, float& bottomCutRatio, int orient) {
143    if(orient & HAL_TRANSFORM_FLIP_H) {
144        swap(leftCutRatio, rightCutRatio);
145    }
146    if(orient & HAL_TRANSFORM_FLIP_V) {
147        swap(topCutRatio, bottomCutRatio);
148    }
149    if(orient & HAL_TRANSFORM_ROT_90) {
150        //Anti clock swapping
151        float tmpCutRatio = leftCutRatio;
152        leftCutRatio = topCutRatio;
153        topCutRatio = rightCutRatio;
154        rightCutRatio = bottomCutRatio;
155        bottomCutRatio = tmpCutRatio;
156    }
157}
158
159//Crops source buffer against destination and FB boundaries
160void calculate_crop_rects(hwc_rect_t& crop, hwc_rect_t& dst,
161        const int fbWidth, const int fbHeight, int orient) {
162    int& crop_l = crop.left;
163    int& crop_t = crop.top;
164    int& crop_r = crop.right;
165    int& crop_b = crop.bottom;
166    int crop_w = crop.right - crop.left;
167    int crop_h = crop.bottom - crop.top;
168
169    int& dst_l = dst.left;
170    int& dst_t = dst.top;
171    int& dst_r = dst.right;
172    int& dst_b = dst.bottom;
173    int dst_w = abs(dst.right - dst.left);
174    int dst_h = abs(dst.bottom - dst.top);
175
176    float leftCutRatio = 0.0f, rightCutRatio = 0.0f, topCutRatio = 0.0f,
177            bottomCutRatio = 0.0f;
178
179    if(dst_l < 0) {
180        leftCutRatio = (float)(0.0f - dst_l) / (float)dst_w;
181        dst_l = 0;
182    }
183    if(dst_r > fbWidth) {
184        rightCutRatio = (float)(dst_r - fbWidth) / (float)dst_w;
185        dst_r = fbWidth;
186    }
187    if(dst_t < 0) {
188        topCutRatio = (float)(0 - dst_t) / (float)dst_h;
189        dst_t = 0;
190    }
191    if(dst_b > fbHeight) {
192        bottomCutRatio = (float)(dst_b - fbHeight) / (float)dst_h;
193        dst_b = fbHeight;
194    }
195
196    calc_cut(leftCutRatio, topCutRatio, rightCutRatio, bottomCutRatio, orient);
197    crop_l += crop_w * leftCutRatio;
198    crop_t += crop_h * topCutRatio;
199    crop_r -= crop_w * rightCutRatio;
200    crop_b -= crop_h * bottomCutRatio;
201}
202
203bool isExternalActive(hwc_context_t* ctx) {
204    return ctx->dpyAttr[HWC_DISPLAY_EXTERNAL].isActive;
205}
206
207int hwc_sync(hwc_context_t *ctx, hwc_display_contents_1_t* list, int dpy) {
208    int ret = 0;
209#ifdef USE_FENCE_SYNC
210    struct mdp_buf_sync data;
211    int acquireFd[4];
212    int count = 0;
213    int releaseFd = -1;
214    int fbFd = -1;
215    data.flags = MDP_BUF_SYNC_FLAG_WAIT;
216    data.acq_fen_fd = acquireFd;
217    data.rel_fen_fd = &releaseFd;
218    //Accumulate acquireFenceFds
219    for(uint32_t i = 0; i < list->numHwLayers; i++) {
220        if((list->hwLayers[i].compositionType == HWC_OVERLAY ||
221            list->hwLayers[i].compositionType == HWC_FRAMEBUFFER_TARGET) &&
222            list->hwLayers[i].acquireFenceFd != -1) {
223            acquireFd[count++] = list->hwLayers[i].acquireFenceFd;
224        }
225    }
226
227    data.acq_fen_fd_cnt = count;
228    fbFd = ctx->dpyAttr[dpy].fd;
229
230    //Waits for acquire fences, returns a release fence
231    ret = ioctl(fbFd, MSMFB_BUFFER_SYNC, &data);
232    if(ret < 0) {
233        ALOGE("ioctl MSMFB_BUFFER_SYNC failed, err=%s",
234                strerror(errno));
235    }
236
237    for(uint32_t i = 0; i < list->numHwLayers; i++) {
238        if((list->hwLayers[i].compositionType == HWC_OVERLAY ||
239            list->hwLayers[i].compositionType == HWC_FRAMEBUFFER_TARGET)) {
240            //Close the acquireFenceFds
241            if(list->hwLayers[i].acquireFenceFd > 0) {
242                close(list->hwLayers[i].acquireFenceFd);
243                list->hwLayers[i].acquireFenceFd = -1;
244            }
245            //Populate releaseFenceFds.
246            list->hwLayers[i].releaseFenceFd = dup(releaseFd);
247        }
248    }
249    list->retireFenceFd = releaseFd;
250#endif
251    return ret;
252}
253
254};//namespace
255