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