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429 lines
14 KiB
429 lines
14 KiB
/*
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* Copyright (c) 2011-2014, The Linux Foundation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of The Linux Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdlib.h>
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#include <math.h>
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#include <utils/Log.h>
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#include <linux/msm_mdp.h>
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#include <cutils/properties.h>
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#include "gralloc_priv.h"
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#include "overlayUtils.h"
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#include "mdpWrapper.h"
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#include "mdp_version.h"
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#include <hardware/hwcomposer_defs.h>
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// just a helper static thingy
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namespace {
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struct IOFile {
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IOFile(const char* s, const char* mode) : fp(0) {
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fp = ::fopen(s, mode);
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if(!fp) {
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ALOGE("Failed open %s", s);
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}
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}
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template <class T>
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size_t read(T& r, size_t elem) {
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if(fp) {
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return ::fread(&r, sizeof(T), elem, fp);
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}
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return 0;
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}
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size_t write(const char* s, uint32_t val) {
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if(fp) {
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return ::fprintf(fp, s, val);
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}
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return 0;
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}
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bool valid() const { return fp != 0; }
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~IOFile() {
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if(fp) ::fclose(fp);
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fp=0;
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}
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FILE* fp;
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};
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}
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namespace overlay {
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//----------From class Res ------------------------------
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const char* const Res::fbPath = "/dev/graphics/fb%u";
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const char* const Res::rotPath = "/dev/msm_rotator";
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//--------------------------------------------------------
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namespace utils {
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//--------------------------------------------------------
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//Refer to graphics.h, gralloc_priv.h, msm_mdp.h
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int getMdpFormat(int format) {
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switch (format) {
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//From graphics.h
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case HAL_PIXEL_FORMAT_RGBA_8888 :
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return MDP_RGBA_8888;
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case HAL_PIXEL_FORMAT_RGBX_8888:
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return MDP_RGBX_8888;
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case HAL_PIXEL_FORMAT_RGB_888:
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return MDP_RGB_888;
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case HAL_PIXEL_FORMAT_RGB_565:
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return MDP_RGB_565;
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case HAL_PIXEL_FORMAT_BGRA_8888:
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return MDP_BGRA_8888;
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case HAL_PIXEL_FORMAT_BGRX_8888:
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return MDP_BGRX_8888;
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case HAL_PIXEL_FORMAT_YV12:
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return MDP_Y_CR_CB_GH2V2;
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case HAL_PIXEL_FORMAT_YCbCr_422_SP:
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return MDP_Y_CBCR_H2V1;
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case HAL_PIXEL_FORMAT_YCrCb_420_SP:
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return MDP_Y_CRCB_H2V2;
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//From gralloc_priv.h
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case HAL_PIXEL_FORMAT_YCbCr_420_SP_TILED:
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return MDP_Y_CBCR_H2V2_TILE;
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case HAL_PIXEL_FORMAT_YCbCr_420_SP:
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return MDP_Y_CBCR_H2V2;
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case HAL_PIXEL_FORMAT_YCrCb_422_SP:
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return MDP_Y_CRCB_H2V1;
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case HAL_PIXEL_FORMAT_YCbCr_422_I:
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return MDP_YCBYCR_H2V1;
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case HAL_PIXEL_FORMAT_YCrCb_422_I:
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return MDP_YCRYCB_H2V1;
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case HAL_PIXEL_FORMAT_YCbCr_444_SP:
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return MDP_Y_CBCR_H1V1;
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case HAL_PIXEL_FORMAT_YCrCb_444_SP:
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return MDP_Y_CRCB_H1V1;
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case HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS:
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case HAL_PIXEL_FORMAT_NV12_ENCODEABLE:
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//NV12 encodeable format maps to the venus format on
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//B-Family targets
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return MDP_Y_CBCR_H2V2_VENUS;
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default:
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//Unsupported by MDP
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//---graphics.h--------
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//HAL_PIXEL_FORMAT_RGBA_5551
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//HAL_PIXEL_FORMAT_RGBA_4444
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//---gralloc_priv.h-----
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//HAL_PIXEL_FORMAT_YCrCb_420_SP_ADRENO = 0x7FA30C01
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//HAL_PIXEL_FORMAT_R_8 = 0x10D
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//HAL_PIXEL_FORMAT_RG_88 = 0x10E
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ALOGE("%s: Unsupported HAL format = 0x%x", __func__, format);
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return -1;
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}
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// not reached
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return -1;
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}
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// This function returns corresponding tile format
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// MDSS support following RGB tile formats
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// 32 bit formats
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// 16 bit formats
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int getMdpFormat(int format, bool tileEnabled)
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{
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if(!tileEnabled) {
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return getMdpFormat(format);
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}
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switch (format) {
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case HAL_PIXEL_FORMAT_RGBA_8888 :
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return MDP_RGBA_8888_TILE;
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case HAL_PIXEL_FORMAT_RGBX_8888:
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return MDP_RGBX_8888_TILE;
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case HAL_PIXEL_FORMAT_RGB_565:
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return MDP_RGB_565_TILE;
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case HAL_PIXEL_FORMAT_BGRA_8888:
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return MDP_BGRA_8888_TILE;
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case HAL_PIXEL_FORMAT_BGRX_8888:
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return MDP_BGRX_8888_TILE;
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default:
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return getMdpFormat(format);
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}
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}
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//Takes mdp format as input and translates to equivalent HAL format
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//Refer to graphics.h, gralloc_priv.h, msm_mdp.h for formats.
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int getHALFormat(int mdpFormat) {
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switch (mdpFormat) {
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//From graphics.h
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case MDP_RGBA_8888:
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return HAL_PIXEL_FORMAT_RGBA_8888;
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case MDP_RGBX_8888:
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return HAL_PIXEL_FORMAT_RGBX_8888;
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case MDP_RGB_888:
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return HAL_PIXEL_FORMAT_RGB_888;
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case MDP_RGB_565:
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return HAL_PIXEL_FORMAT_RGB_565;
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case MDP_BGRA_8888:
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return HAL_PIXEL_FORMAT_BGRA_8888;
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case MDP_Y_CR_CB_GH2V2:
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return HAL_PIXEL_FORMAT_YV12;
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case MDP_Y_CBCR_H2V1:
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return HAL_PIXEL_FORMAT_YCbCr_422_SP;
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case MDP_Y_CRCB_H2V2:
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return HAL_PIXEL_FORMAT_YCrCb_420_SP;
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//From gralloc_priv.h
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case MDP_Y_CBCR_H2V2_TILE:
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return HAL_PIXEL_FORMAT_YCbCr_420_SP_TILED;
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case MDP_Y_CBCR_H2V2:
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return HAL_PIXEL_FORMAT_YCbCr_420_SP;
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case MDP_Y_CRCB_H2V1:
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return HAL_PIXEL_FORMAT_YCrCb_422_SP;
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case MDP_YCBYCR_H2V1:
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return HAL_PIXEL_FORMAT_YCbCr_422_I;
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case MDP_YCRYCB_H2V1:
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return HAL_PIXEL_FORMAT_YCrCb_422_I;
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case MDP_Y_CBCR_H1V1:
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return HAL_PIXEL_FORMAT_YCbCr_444_SP;
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case MDP_Y_CRCB_H1V1:
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return HAL_PIXEL_FORMAT_YCrCb_444_SP;
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case MDP_Y_CBCR_H2V2_VENUS:
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return HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS;
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default:
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ALOGE("%s: Unsupported MDP format = 0x%x", __func__, mdpFormat);
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return -1;
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}
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// not reached
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return -1;
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}
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int getMdpOrient(eTransform rotation) {
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int retTrans = 0;
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bool trans90 = false;
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int mdpVersion = qdutils::MDPVersion::getInstance().getMDPVersion();
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bool aFamily = (mdpVersion < qdutils::MDSS_V5);
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ALOGD_IF(DEBUG_OVERLAY, "%s: In rotation = %d", __FUNCTION__, rotation);
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if(rotation & OVERLAY_TRANSFORM_ROT_90) {
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retTrans |= MDP_ROT_90;
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trans90 = true;
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}
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if(rotation & OVERLAY_TRANSFORM_FLIP_H) {
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if(trans90 && aFamily) {
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//Swap for a-family, since its driver does 90 first
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retTrans |= MDP_FLIP_UD;
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} else {
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retTrans |= MDP_FLIP_LR;
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}
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}
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if(rotation & OVERLAY_TRANSFORM_FLIP_V) {
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if(trans90 && aFamily) {
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//Swap for a-family, since its driver does 90 first
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retTrans |= MDP_FLIP_LR;
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} else {
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retTrans |= MDP_FLIP_UD;
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}
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}
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ALOGD_IF(DEBUG_OVERLAY, "%s: Out rotation = %d", __FUNCTION__, retTrans);
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return retTrans;
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}
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int getDownscaleFactor(const int& src_w, const int& src_h,
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const int& dst_w, const int& dst_h) {
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int dscale_factor = utils::ROT_DS_NONE;
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// We need this check to engage the rotator whenever possible to assist MDP
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// in performing video downscale.
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// This saves bandwidth and avoids causing the driver to make too many panel
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// -mode switches between BLT (writeback) and non-BLT (Direct) modes.
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// Use-case: Video playback [with downscaling and rotation].
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if (dst_w && dst_h)
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{
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float fDscale = (float)(src_w * src_h) / (float)(dst_w * dst_h);
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uint32_t dscale = (int)sqrtf(fDscale);
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if(dscale < 2) {
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// Down-scale to > 50% of orig.
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dscale_factor = utils::ROT_DS_NONE;
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} else if(dscale < 4) {
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// Down-scale to between > 25% to <= 50% of orig.
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dscale_factor = utils::ROT_DS_HALF;
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} else if(dscale < 8) {
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// Down-scale to between > 12.5% to <= 25% of orig.
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dscale_factor = utils::ROT_DS_FOURTH;
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} else {
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// Down-scale to <= 12.5% of orig.
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dscale_factor = utils::ROT_DS_EIGHTH;
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}
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}
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return dscale_factor;
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}
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void getDecimationFactor(const int& src_w, const int& src_h,
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const int& dst_w, const int& dst_h, uint8_t& horzDeci,
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uint8_t& vertDeci) {
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horzDeci = 0;
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vertDeci = 0;
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float horDscale = ceilf((float)src_w / (float)dst_w);
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float verDscale = ceilf((float)src_h / (float)dst_h);
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//Next power of 2, if not already
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horDscale = powf(2.0f, ceilf(log2f(horDscale)));
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verDscale = powf(2.0f, ceilf(log2f(verDscale)));
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//Since MDP can do 1/4 dscale and has better quality, split the task
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//between decimator and MDP downscale
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horDscale /= 4.0f;
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verDscale /= 4.0f;
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if((int)horDscale)
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horzDeci = (uint8_t)log2f(horDscale);
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if((int)verDscale)
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vertDeci = (uint8_t)log2f(verDscale);
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if(src_w > 2048) {
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//If the client sends us something > what a layer mixer supports
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//then it means it doesn't want to use split-pipe but wants us to
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//decimate. A minimum decimation of 2 will ensure that the width is
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//always within layer mixer limits.
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if(horzDeci < 2)
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horzDeci = 2;
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}
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}
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static inline int compute(const uint32_t& x, const uint32_t& y,
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const uint32_t& z) {
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return x - ( y + z );
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}
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void preRotateSource(const eTransform& tr, Whf& whf, Dim& srcCrop) {
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if(tr & OVERLAY_TRANSFORM_FLIP_H) {
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srcCrop.x = compute(whf.w, srcCrop.x, srcCrop.w);
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}
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if(tr & OVERLAY_TRANSFORM_FLIP_V) {
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srcCrop.y = compute(whf.h, srcCrop.y, srcCrop.h);
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}
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if(tr & OVERLAY_TRANSFORM_ROT_90) {
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int tmp = srcCrop.x;
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srcCrop.x = compute(whf.h,
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srcCrop.y,
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srcCrop.h);
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srcCrop.y = tmp;
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swap(whf.w, whf.h);
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swap(srcCrop.w, srcCrop.h);
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}
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}
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void getDump(char *buf, size_t len, const char *prefix,
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const mdp_overlay& ov) {
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char str[256] = {'\0'};
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snprintf(str, 256,
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"%s id=%d z=%d fg=%d alpha=%d mask=%d flags=0x%x H.Deci=%d,"
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"V.Deci=%d\n",
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prefix, ov.id, ov.z_order, ov.is_fg, ov.alpha,
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ov.transp_mask, ov.flags, ov.horz_deci, ov.vert_deci);
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strlcat(buf, str, len);
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getDump(buf, len, "\tsrc", ov.src);
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getDump(buf, len, "\tsrc_rect", ov.src_rect);
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getDump(buf, len, "\tdst_rect", ov.dst_rect);
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}
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void getDump(char *buf, size_t len, const char *prefix,
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const msmfb_img& ov) {
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char str_src[256] = {'\0'};
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snprintf(str_src, 256,
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"%s w=%d h=%d format=%d %s\n",
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prefix, ov.width, ov.height, ov.format,
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overlay::utils::getFormatString(ov.format));
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strlcat(buf, str_src, len);
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}
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void getDump(char *buf, size_t len, const char *prefix,
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const mdp_rect& ov) {
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char str_rect[256] = {'\0'};
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snprintf(str_rect, 256,
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"%s x=%d y=%d w=%d h=%d\n",
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prefix, ov.x, ov.y, ov.w, ov.h);
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strlcat(buf, str_rect, len);
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}
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void getDump(char *buf, size_t len, const char *prefix,
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const msmfb_overlay_data& ov) {
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char str[256] = {'\0'};
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snprintf(str, 256,
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"%s id=%d\n",
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prefix, ov.id);
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strlcat(buf, str, len);
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getDump(buf, len, "\tdata", ov.data);
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}
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void getDump(char *buf, size_t len, const char *prefix,
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const msmfb_data& ov) {
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char str_data[256] = {'\0'};
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snprintf(str_data, 256,
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"%s offset=%d memid=%d id=%d flags=0x%x\n",
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prefix, ov.offset, ov.memory_id, ov.id, ov.flags);
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strlcat(buf, str_data, len);
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}
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void getDump(char *buf, size_t len, const char *prefix,
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const msm_rotator_img_info& rot) {
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char str[256] = {'\0'};
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snprintf(str, 256, "%s sessid=%u rot=%d, enable=%d downscale=%d\n",
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prefix, rot.session_id, rot.rotations, rot.enable,
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rot.downscale_ratio);
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strlcat(buf, str, len);
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getDump(buf, len, "\tsrc", rot.src);
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getDump(buf, len, "\tdst", rot.dst);
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getDump(buf, len, "\tsrc_rect", rot.src_rect);
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}
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void getDump(char *buf, size_t len, const char *prefix,
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const msm_rotator_data_info& rot) {
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char str[256] = {'\0'};
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snprintf(str, 256,
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"%s sessid=%u\n",
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prefix, rot.session_id);
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strlcat(buf, str, len);
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getDump(buf, len, "\tsrc", rot.src);
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getDump(buf, len, "\tdst", rot.dst);
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}
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//Helper to even out x,w and y,h pairs
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//x,y are always evened to ceil and w,h are evened to floor
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void normalizeCrop(uint32_t& xy, uint32_t& wh) {
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if(xy & 1) {
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even_ceil(xy);
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if(wh & 1)
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even_floor(wh);
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else
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wh -= 2;
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} else {
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even_floor(wh);
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}
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}
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} // utils
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} // overlay
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