cc18cfed4c
Draw sequence in hwc_set --eglSwapBuffers --wait for fb_post. Its ok to draw to External only at this point. --draw to external | Parallel with PAN --commit to external | Parallel with PAN --wait for pan (happening in fb_post) to finish. Call MSMFB_OVERLAY_SET ioctl only when params change. These thing together ensure a correct sequence and should fix tearing and stuttering, the latter assuming there are no other display pipeline delays. Change-Id: Ibb0ad8485fa6b30dc6ac07ae8b25a760941c08ce (cherry picked from commit c50c90863e41e31ecfe6963396b5def35e9dca34)
65 lines
1.7 KiB
C
65 lines
1.7 KiB
C
/*
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* Copyright (C) 2008 The Android Open Source Project
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* Copyright (c) 2012, Code Aurora Forum. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef FB_PRIV_H
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#define FB_PRIV_H
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#include <linux/fb.h>
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#define NUM_FRAMEBUFFERS_MIN 2
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#define NUM_FRAMEBUFFERS_MAX 3
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#define NO_SURFACEFLINGER_SWAPINTERVAL
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#define COLOR_FORMAT(x) (x & 0xFFF) // Max range for colorFormats is 0 - FFF
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struct private_handle_t;
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enum {
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// flag to indicate we'll post this buffer
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PRIV_USAGE_LOCKED_FOR_POST = 0x80000000,
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PRIV_MIN_SWAP_INTERVAL = 0,
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PRIV_MAX_SWAP_INTERVAL = 1,
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};
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struct private_module_t {
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gralloc_module_t base;
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struct private_handle_t* framebuffer;
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uint32_t fbFormat;
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uint32_t flags;
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uint32_t numBuffers;
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uint32_t bufferMask;
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pthread_mutex_t lock;
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private_handle_t *currentBuffer;
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struct fb_var_screeninfo info;
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struct fb_fix_screeninfo finfo;
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float xdpi;
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float ydpi;
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float fps;
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uint32_t swapInterval;
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uint32_t currentOffset;
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bool fbPostDone;
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pthread_mutex_t fbPostLock;
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//Condition to inform HWC that fb_post called
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pthread_cond_t fbPostCond;
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bool fbPanDone;
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pthread_mutex_t fbPanLock;
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pthread_cond_t fbPanCond;
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};
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#endif /* FB_PRIV_H */
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