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5875b20445
android_hardware_qcom_display/libgralloc/framebuffer.cpp
Ramakrishna Prasad N 5875b20445 libgralloc: Add API's to synchronize framebuffer update. 
This change introduces API's in gralloc to allow clients
to synchronize with framebuffer posts.

CRs-fixed: 348953

(cherry picked from commit f81de75b1adb78018c0bd54b7f27901ba467defd)

Conflicts:

	libgralloc/framebuffer.cpp
	libqcomui/qcom_ui.h

Change-Id: I98b6a2b3243f520138cb5d1c76493cdfa3af60b6
2012-06-03 02:49:05 -05:00

986 lines
33 KiB
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/*
* Copyright (C) 2008 The Android Open Source Project
* Copyright (c) 2010-2012 Code Aurora Forum. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <sys/mman.h>
#include <dlfcn.h>
#include <cutils/ashmem.h>
#include <cutils/log.h>
#include <cutils/properties.h>
#include <utils/Timers.h>
#include <hardware/hardware.h>
#include <hardware/gralloc.h>
#include <fcntl.h>
#include <errno.h>
#include <sys/ioctl.h>
#include <string.h>
#include <stdlib.h>
#include <pthread.h>
#include <utils/Timers.h>
#include <cutils/log.h>
#include <cutils/atomic.h>
#include <linux/fb.h>
#include <linux/msm_mdp.h>
#include <GLES/gl.h>
#include "gralloc_priv.h"
#include "gr.h"
#ifdef NO_SURFACEFLINGER_SWAPINTERVAL
#include <cutils/properties.h>
#endif
#include <utils/profiler.h>
#include <qcom_ui.h>
#define FB_DEBUG 0
#if defined(HDMI_DUAL_DISPLAY)
#define EVEN_OUT(x) if (x & 0x0001) {x--;}
using overlay::Overlay;
/** min of int a, b */
static inline int min(int a, int b) {
return (a<b) ? a : b;
}
/** max of int a, b */
static inline int max(int a, int b) {
return (a>b) ? a : b;
}
#endif
char framebufferStateName[] = {'S', 'R', 'A'};
/*****************************************************************************/
enum {
MDDI_PANEL = '1',
EBI2_PANEL = '2',
LCDC_PANEL = '3',
EXT_MDDI_PANEL = '4',
TV_PANEL = '5'
};
enum {
PAGE_FLIP = 0x00000001,
LOCKED = 0x00000002
};
struct fb_context_t {
framebuffer_device_t device;
};
static int neworientation;
/*****************************************************************************/
static void
msm_copy_buffer(buffer_handle_t handle, int fd,
int width, int height, int format,
int x, int y, int w, int h);
static int fb_setSwapInterval(struct framebuffer_device_t* dev,
int interval)
{
char pval[PROPERTY_VALUE_MAX];
property_get("debug.egl.swapinterval", pval, "-1");
int property_interval = atoi(pval);
if (property_interval >= 0)
interval = property_interval;
fb_context_t* ctx = (fb_context_t*)dev;
private_module_t* m = reinterpret_cast<private_module_t*>(
dev->common.module);
if (interval < dev->minSwapInterval || interval > dev->maxSwapInterval)
return -EINVAL;
m->swapInterval = interval;
return 0;
}
static int fb_setUpdateRect(struct framebuffer_device_t* dev,
int l, int t, int w, int h)
{
if (((w|h) <= 0) || ((l|t)<0))
return -EINVAL;
fb_context_t* ctx = (fb_context_t*)dev;
private_module_t* m = reinterpret_cast<private_module_t*>(
dev->common.module);
m->info.reserved[0] = 0x54445055; // "UPDT";
m->info.reserved[1] = (uint16_t)l | ((uint32_t)t << 16);
m->info.reserved[2] = (uint16_t)(l+w) | ((uint32_t)(t+h) << 16);
return 0;
}
static void *disp_loop(void *ptr)
{
struct qbuf_t nxtBuf;
static int cur_buf=-1;
private_module_t *m = reinterpret_cast<private_module_t*>(ptr);
while (1) {
pthread_mutex_lock(&(m->qlock));
// wait (sleep) while display queue is empty;
if (m->disp.isEmpty()) {
pthread_cond_wait(&(m->qpost),&(m->qlock));
}
// dequeue next buff to display and lock it
nxtBuf = m->disp.getHeadValue();
m->disp.pop();
pthread_mutex_unlock(&(m->qlock));
// post buf out to display synchronously
private_handle_t const* hnd = reinterpret_cast<private_handle_t const*>
(nxtBuf.buf);
const size_t offset = hnd->base - m->framebuffer->base;
m->info.activate = FB_ACTIVATE_VBL;
m->info.yoffset = offset / m->finfo.line_length;
#if defined(HDMI_DUAL_DISPLAY)
pthread_mutex_lock(&m->overlayLock);
m->orientation = neworientation;
m->currentOffset = offset;
m->hdmiStateChanged = true;
pthread_cond_signal(&(m->overlayPost));
pthread_mutex_unlock(&m->overlayLock);
#endif
if (ioctl(m->framebuffer->fd, FBIOPUT_VSCREENINFO, &m->info) == -1) {
LOGE("ERROR FBIOPUT_VSCREENINFO failed; frame not displayed");
}
//Signal so that we can close channels if we need to
pthread_mutex_lock(&m->bufferPostLock);
m->bufferPostDone = true;
pthread_cond_signal(&m->bufferPostCond);
pthread_mutex_unlock(&m->bufferPostLock);
CALC_FPS();
if (cur_buf == -1) {
int nxtAvail = ((nxtBuf.idx + 1) % m->numBuffers);
pthread_mutex_lock(&(m->avail[nxtBuf.idx].lock));
m->avail[nxtBuf.idx].is_avail = true;
m->avail[nxtBuf.idx].state = REF;
pthread_cond_broadcast(&(m->avail[nxtBuf.idx].cond));
pthread_mutex_unlock(&(m->avail[nxtBuf.idx].lock));
} else {
pthread_mutex_lock(&(m->avail[nxtBuf.idx].lock));
if (m->avail[nxtBuf.idx].state != SUB) {
LOGE_IF(m->swapInterval != 0, "[%d] state %c, expected %c", nxtBuf.idx,
framebufferStateName[m->avail[nxtBuf.idx].state],
framebufferStateName[SUB]);
}
m->avail[nxtBuf.idx].state = REF;
pthread_mutex_unlock(&(m->avail[nxtBuf.idx].lock));
pthread_mutex_lock(&(m->avail[cur_buf].lock));
m->avail[cur_buf].is_avail = true;
if (m->avail[cur_buf].state != REF) {
LOGE_IF(m->swapInterval != 0, "[%d] state %c, expected %c", cur_buf,
framebufferStateName[m->avail[cur_buf].state],
framebufferStateName[REF]);
}
m->avail[cur_buf].state = AVL;
pthread_cond_broadcast(&(m->avail[cur_buf].cond));
pthread_mutex_unlock(&(m->avail[cur_buf].lock));
}
cur_buf = nxtBuf.idx;
}
return NULL;
}
#if defined(HDMI_DUAL_DISPLAY)
static int closeHDMIChannel(private_module_t* m)
{
Overlay* pTemp = m->pobjOverlay;
if(pTemp != NULL)
pTemp->closeChannel();
return 0;
}
static void getSecondaryDisplayDestinationInfo(private_module_t* m, overlay_rect&
rect, int& orientation)
{
Overlay* pTemp = m->pobjOverlay;
int width = pTemp->getFBWidth();
int height = pTemp->getFBHeight();
int fbwidth = m->info.xres, fbheight = m->info.yres;
rect.x = 0; rect.y = 0;
rect.w = width; rect.h = height;
int rot = m->orientation;
switch(rot) {
// ROT_0
case 0:
// ROT_180
case HAL_TRANSFORM_ROT_180:
pTemp->getAspectRatioPosition(fbwidth, fbheight,
&rect);
if(rot == HAL_TRANSFORM_ROT_180)
orientation = HAL_TRANSFORM_ROT_180;
else
orientation = 0;
break;
// ROT_90
case HAL_TRANSFORM_ROT_90:
// ROT_270
case HAL_TRANSFORM_ROT_270:
//Calculate the Aspectratio for the UI
//in the landscape mode
//Width and height will be swapped as there
//is rotation
pTemp->getAspectRatioPosition(fbheight, fbwidth,
&rect);
if(rot == HAL_TRANSFORM_ROT_90)
orientation = HAL_TRANSFORM_ROT_270;
else if(rot == HAL_TRANSFORM_ROT_270)
orientation = HAL_TRANSFORM_ROT_90;
break;
}
return;
}
static void *hdmi_ui_loop(void *ptr)
{
private_module_t* m = reinterpret_cast<private_module_t*>(
ptr);
while (1) {
pthread_mutex_lock(&m->overlayLock);
while(!(m->hdmiStateChanged))
pthread_cond_wait(&(m->overlayPost), &(m->overlayLock));
m->hdmiStateChanged = false;
if (m->exitHDMIUILoop) {
pthread_mutex_unlock(&m->overlayLock);
return NULL;
}
bool waitForVsync = true;
int flags = WAIT_FOR_VSYNC;
if (m->pobjOverlay) {
Overlay* pTemp = m->pobjOverlay;
if (m->hdmiMirroringState == HDMI_NO_MIRRORING)
closeHDMIChannel(m);
else if(m->hdmiMirroringState == HDMI_UI_MIRRORING) {
if (!pTemp->isChannelUP()) {
int alignedW = ALIGN(m->info.xres, 32);
private_handle_t const* hnd =
reinterpret_cast<private_handle_t const*>(m->framebuffer);
overlay_buffer_info info;
info.width = alignedW;
info.height = hnd->height;
info.format = hnd->format;
info.size = hnd->size;
if (m->trueMirrorSupport)
flags &= ~WAIT_FOR_VSYNC;
// External display connected during secure video playback
// Open secure UI session
// NOTE: when external display is already connected and then secure
// playback is started, we dont have to do anything
if(m->secureVideoOverlay)
flags |= SECURE_OVERLAY_SESSION;
// start the overlay Channel for mirroring
// m->enableHDMIOutput corresponds to the fbnum
if (pTemp->startChannel(info, m->enableHDMIOutput,
false, true, 0, VG0_PIPE, flags)) {
pTemp->setFd(m->framebuffer->fd);
pTemp->setCrop(0, 0, m->info.xres, m->info.yres);
} else
closeHDMIChannel(m);
}
if (pTemp->isChannelUP()) {
overlay_rect destRect;
int rot = 0;
int currOrientation = 0;
getSecondaryDisplayDestinationInfo(m, destRect, rot);
pTemp->getOrientation(currOrientation);
if(rot != currOrientation) {
pTemp->setTransform(rot);
}
EVEN_OUT(destRect.x);
EVEN_OUT(destRect.y);
EVEN_OUT(destRect.w);
EVEN_OUT(destRect.h);
int currentX = 0, currentY = 0;
uint32_t currentW = 0, currentH = 0;
if (pTemp->getPosition(currentX, currentY, currentW, currentH)) {
if ((currentX != destRect.x) || (currentY != destRect.y) ||
(currentW != destRect.w) || (currentH != destRect.h)) {
pTemp->setPosition(destRect.x, destRect.y, destRect.w,
destRect.h);
}
}
if (m->trueMirrorSupport) {
// if video is started the UI channel should be NO_WAIT.
flags = !m->videoOverlay ? WAIT_FOR_VSYNC : 0;
pTemp->updateOverlayFlags(flags);
}
pTemp->queueBuffer(m->currentOffset);
}
}
else
closeHDMIChannel(m);
}
pthread_mutex_unlock(&m->overlayLock);
}
return NULL;
}
static int fb_videoOverlayStarted(struct framebuffer_device_t* dev, int started)
{
private_module_t* m = reinterpret_cast<private_module_t*>(
dev->common.module);
pthread_mutex_lock(&m->overlayLock);
Overlay* pTemp = m->pobjOverlay;
if(started != m->videoOverlay) {
m->videoOverlay = started;
if (!m->trueMirrorSupport) {
m->hdmiStateChanged = true;
if (started && pTemp) {
m->hdmiMirroringState = HDMI_NO_MIRRORING;
closeHDMIChannel(m);
} else if (m->enableHDMIOutput)
m->hdmiMirroringState = HDMI_UI_MIRRORING;
pthread_cond_signal(&(m->overlayPost));
}
}
pthread_mutex_unlock(&m->overlayLock);
return 0;
}
static int fb_enableHDMIOutput(struct framebuffer_device_t* dev, int externaltype)
{
private_module_t* m = reinterpret_cast<private_module_t*>(
dev->common.module);
pthread_mutex_lock(&m->overlayLock);
Overlay* pTemp = m->pobjOverlay;
//Check if true mirroring can be supported
m->trueMirrorSupport = FrameBufferInfo::getInstance()->canSupportTrueMirroring();
m->enableHDMIOutput = externaltype;
LOGE("In fb_enableHDMIOutput: externaltype = %d", m->enableHDMIOutput);
if(externaltype) {
if (m->trueMirrorSupport) {
m->hdmiMirroringState = HDMI_UI_MIRRORING;
} else {
if(!m->videoOverlay)
m->hdmiMirroringState = HDMI_UI_MIRRORING;
}
} else if (!externaltype && pTemp) {
m->hdmiMirroringState = HDMI_NO_MIRRORING;
closeHDMIChannel(m);
}
m->hdmiStateChanged = true;
pthread_cond_signal(&(m->overlayPost));
pthread_mutex_unlock(&m->overlayLock);
return 0;
}
static int fb_orientationChanged(struct framebuffer_device_t* dev, int orientation)
{
private_module_t* m = reinterpret_cast<private_module_t*>(
dev->common.module);
pthread_mutex_lock(&m->overlayLock);
neworientation = orientation;
pthread_mutex_unlock(&m->overlayLock);
return 0;
}
#endif
//Wait until framebuffer content is displayed.
////This is called in the context of threadLoop.
////Display loop wakes this up after display.
static int fb_waitForBufferPost(struct framebuffer_device_t* dev)
{
private_module_t* m = reinterpret_cast<private_module_t*>(
dev->common.module);
pthread_mutex_lock(&m->bufferPostLock);
while(m->bufferPostDone == false) {
pthread_cond_wait(&(m->bufferPostCond), &(m->bufferPostLock));
}
pthread_mutex_unlock(&m->bufferPostLock);
return 0;
}
static int fb_resetBufferPostStatus(struct framebuffer_device_t* dev)
{
private_module_t* m = reinterpret_cast<private_module_t*>(
dev->common.module);
pthread_mutex_lock(&m->bufferPostLock);
m->bufferPostDone = false;
pthread_mutex_unlock(&m->bufferPostLock);
return 0;
}
/* fb_perform - used to add custom event and handle them in fb HAL
* Used for external display related functions as of now
*/
static int fb_perform(struct framebuffer_device_t* dev, int event, int value)
{
private_module_t* m = reinterpret_cast<private_module_t*>(
dev->common.module);
switch(event) {
#if defined(HDMI_DUAL_DISPLAY)
case EVENT_EXTERNAL_DISPLAY:
fb_enableHDMIOutput(dev, value);
break;
case EVENT_VIDEO_OVERLAY:
fb_videoOverlayStarted(dev, value);
break;
case EVENT_ORIENTATION_CHANGE:
fb_orientationChanged(dev, value);
break;
#endif
case EVENT_RESET_POSTBUFFER:
fb_resetBufferPostStatus(dev);
break;
case EVENT_WAIT_POSTBUFFER:
fb_waitForBufferPost(dev);
break;
default:
LOGE("In %s: UNKNOWN Event = %d!!!", __FUNCTION__, event);
break;
}
return 0;
}
static int fb_post(struct framebuffer_device_t* dev, buffer_handle_t buffer)
{
if (private_handle_t::validate(buffer) < 0)
return -EINVAL;
int nxtIdx, futureIdx = -1;
bool reuse;
struct qbuf_t qb;
fb_context_t* ctx = (fb_context_t*)dev;
private_handle_t const* hnd = reinterpret_cast<private_handle_t const*>(buffer);
private_module_t* m = reinterpret_cast<private_module_t*>(
dev->common.module);
if (hnd->flags & private_handle_t::PRIV_FLAGS_FRAMEBUFFER) {
reuse = false;
nxtIdx = (m->currentIdx + 1) % m->numBuffers;
futureIdx = (nxtIdx + 1) % m->numBuffers;
if (m->swapInterval == 0) {
// if SwapInterval = 0 and no buffers available then reuse
// current buf for next rendering so don't post new buffer
if (pthread_mutex_trylock(&(m->avail[nxtIdx].lock))) {
reuse = true;
} else {
if (! m->avail[nxtIdx].is_avail)
reuse = true;
pthread_mutex_unlock(&(m->avail[nxtIdx].lock));
}
}
if(!reuse){
// unlock previous ("current") Buffer and lock the new buffer
m->base.lock(&m->base, buffer,
private_module_t::PRIV_USAGE_LOCKED_FOR_POST,
0,0, m->info.xres, m->info.yres, NULL);
// post/queue the new buffer
pthread_mutex_lock(&(m->avail[nxtIdx].lock));
if (m->avail[nxtIdx].is_avail != true) {
LOGE_IF(m->swapInterval != 0, "Found %d buf to be not avail", nxtIdx);
}
m->avail[nxtIdx].is_avail = false;
if (m->avail[nxtIdx].state != AVL) {
LOGD("[%d] state %c, expected %c", nxtIdx,
framebufferStateName[m->avail[nxtIdx].state],
framebufferStateName[AVL]);
}
m->avail[nxtIdx].state = SUB;
pthread_mutex_unlock(&(m->avail[nxtIdx].lock));
qb.idx = nxtIdx;
qb.buf = buffer;
pthread_mutex_lock(&(m->qlock));
m->disp.push(qb);
pthread_cond_signal(&(m->qpost));
pthread_mutex_unlock(&(m->qlock));
if (m->currentBuffer)
m->base.unlock(&m->base, m->currentBuffer);
m->currentBuffer = buffer;
m->currentIdx = nxtIdx;
} else {
if (m->currentBuffer)
m->base.unlock(&m->base, m->currentBuffer);
m->base.lock(&m->base, buffer,
private_module_t::PRIV_USAGE_LOCKED_FOR_POST,
0,0, m->info.xres, m->info.yres, NULL);
m->currentBuffer = buffer;
}
} else {
void* fb_vaddr;
void* buffer_vaddr;
m->base.lock(&m->base, m->framebuffer,
GRALLOC_USAGE_SW_WRITE_RARELY,
0, 0, m->info.xres, m->info.yres,
&fb_vaddr);
m->base.lock(&m->base, buffer,
GRALLOC_USAGE_SW_READ_RARELY,
0, 0, m->info.xres, m->info.yres,
&buffer_vaddr);
//memcpy(fb_vaddr, buffer_vaddr, m->finfo.line_length * m->info.yres);
msm_copy_buffer(
m->framebuffer, m->framebuffer->fd,
m->info.xres, m->info.yres, m->fbFormat,
m->info.xoffset, m->info.yoffset,
m->info.width, m->info.height);
m->base.unlock(&m->base, buffer);
m->base.unlock(&m->base, m->framebuffer);
}
LOGD_IF(FB_DEBUG, "Framebuffer state: [0] = %c [1] = %c [2] = %c",
framebufferStateName[m->avail[0].state],
framebufferStateName[m->avail[1].state],
framebufferStateName[m->avail[2].state]);
return 0;
}
static int fb_compositionComplete(struct framebuffer_device_t* dev)
{
// TODO: Properly implement composition complete callback
glFinish();
return 0;
}
static int fb_lockBuffer(struct framebuffer_device_t* dev, int index)
{
private_module_t* m = reinterpret_cast<private_module_t*>(
dev->common.module);
// Return immediately if the buffer is available
if ((m->avail[index].state == AVL) || (m->swapInterval == 0))
return 0;
pthread_mutex_lock(&(m->avail[index].lock));
while (m->avail[index].state != AVL) {
pthread_cond_wait(&(m->avail[index].cond),
&(m->avail[index].lock));
}
pthread_mutex_unlock(&(m->avail[index].lock));
return 0;
}
/*****************************************************************************/
int mapFrameBufferLocked(struct private_module_t* module)
{
// already initialized...
if (module->framebuffer) {
return 0;
}
char const * const device_template[] = {
"/dev/graphics/fb%u",
"/dev/fb%u",
0 };
int fd = -1;
int i=0;
char name[64];
char property[PROPERTY_VALUE_MAX];
while ((fd==-1) && device_template[i]) {
snprintf(name, 64, device_template[i], 0);
fd = open(name, O_RDWR, 0);
i++;
}
if (fd < 0)
return -errno;
struct fb_fix_screeninfo finfo;
if (ioctl(fd, FBIOGET_FSCREENINFO, &finfo) == -1)
return -errno;
struct fb_var_screeninfo info;
if (ioctl(fd, FBIOGET_VSCREENINFO, &info) == -1)
return -errno;
info.reserved[0] = 0;
info.reserved[1] = 0;
info.reserved[2] = 0;
info.xoffset = 0;
info.yoffset = 0;
info.activate = FB_ACTIVATE_NOW;
/* Interpretation of offset for color fields: All offsets are from the right,
* inside a "pixel" value, which is exactly 'bits_per_pixel' wide (means: you
* can use the offset as right argument to <<). A pixel afterwards is a bit
* stream and is written to video memory as that unmodified. This implies
* big-endian byte order if bits_per_pixel is greater than 8.
*/
if(info.bits_per_pixel == 32) {
/*
* Explicitly request RGBA_8888
*/
info.bits_per_pixel = 32;
info.red.offset = 24;
info.red.length = 8;
info.green.offset = 16;
info.green.length = 8;
info.blue.offset = 8;
info.blue.length = 8;
info.transp.offset = 0;
info.transp.length = 8;
/* Note: the GL driver does not have a r=8 g=8 b=8 a=0 config, so if we do
* not use the MDP for composition (i.e. hw composition == 0), ask for
* RGBA instead of RGBX. */
if (property_get("debug.sf.hw", property, NULL) > 0 && atoi(property) == 0)
module->fbFormat = HAL_PIXEL_FORMAT_RGBX_8888;
else if(property_get("debug.composition.type", property, NULL) > 0 && (strncmp(property, "mdp", 3) == 0))
module->fbFormat = HAL_PIXEL_FORMAT_RGBX_8888;
else
module->fbFormat = HAL_PIXEL_FORMAT_RGBA_8888;
} else {
/*
* Explicitly request 5/6/5
*/
info.bits_per_pixel = 16;
info.red.offset = 11;
info.red.length = 5;
info.green.offset = 5;
info.green.length = 6;
info.blue.offset = 0;
info.blue.length = 5;
info.transp.offset = 0;
info.transp.length = 0;
module->fbFormat = HAL_PIXEL_FORMAT_RGB_565;
}
//adreno needs 4k aligned offsets. Max hole size is 4096-1
int size = roundUpToPageSize(info.yres * info.xres * (info.bits_per_pixel/8));
/*
* Request NUM_BUFFERS screens (at lest 2 for page flipping)
*/
int numberOfBuffers = (int)(finfo.smem_len/size);
LOGV("num supported framebuffers in kernel = %d", numberOfBuffers);
if (property_get("debug.gr.numframebuffers", property, NULL) > 0) {
int num = atoi(property);
if ((num >= NUM_FRAMEBUFFERS_MIN) && (num <= NUM_FRAMEBUFFERS_MAX)) {
numberOfBuffers = num;
}
}
if (numberOfBuffers > NUM_FRAMEBUFFERS_MAX)
numberOfBuffers = NUM_FRAMEBUFFERS_MAX;
LOGV("We support %d buffers", numberOfBuffers);
//consider the included hole by 4k alignment
uint32_t line_length = (info.xres * info.bits_per_pixel / 8);
info.yres_virtual = (size * numberOfBuffers) / line_length;
uint32_t flags = PAGE_FLIP;
if (ioctl(fd, FBIOPUT_VSCREENINFO, &info) == -1) {
info.yres_virtual = size / line_length;
flags &= ~PAGE_FLIP;
LOGW("FBIOPUT_VSCREENINFO failed, page flipping not supported");
}
if (info.yres_virtual < ((size * 2) / line_length) ) {
// we need at least 2 for page-flipping
info.yres_virtual = size / line_length;
flags &= ~PAGE_FLIP;
LOGW("page flipping not supported (yres_virtual=%d, requested=%d)",
info.yres_virtual, info.yres*2);
}
if (ioctl(fd, FBIOGET_VSCREENINFO, &info) == -1)
return -errno;
if (int(info.width) <= 0 || int(info.height) <= 0) {
// the driver doesn't return that information
// default to 160 dpi
info.width = ((info.xres * 25.4f)/160.0f + 0.5f);
info.height = ((info.yres * 25.4f)/160.0f + 0.5f);
}
float xdpi = (info.xres * 25.4f) / info.width;
float ydpi = (info.yres * 25.4f) / info.height;
//The reserved[4] field is used to store FPS by the driver.
float fps = info.reserved[4];
LOGI( "using (fd=%d)\n"
"id = %s\n"
"xres = %d px\n"
"yres = %d px\n"
"xres_virtual = %d px\n"
"yres_virtual = %d px\n"
"bpp = %d\n"
"r = %2u:%u\n"
"g = %2u:%u\n"
"b = %2u:%u\n",
fd,
finfo.id,
info.xres,
info.yres,
info.xres_virtual,
info.yres_virtual,
info.bits_per_pixel,
info.red.offset, info.red.length,
info.green.offset, info.green.length,
info.blue.offset, info.blue.length
);
LOGI( "width = %d mm (%f dpi)\n"
"height = %d mm (%f dpi)\n"
"refresh rate = %.2f Hz\n",
info.width, xdpi,
info.height, ydpi,
fps
);
if (ioctl(fd, FBIOGET_FSCREENINFO, &finfo) == -1)
return -errno;
if (finfo.smem_len <= 0)
return -errno;
module->flags = flags;
module->info = info;
module->finfo = finfo;
module->xdpi = xdpi;
module->ydpi = ydpi;
module->fps = fps;
#ifdef NO_SURFACEFLINGER_SWAPINTERVAL
char pval[PROPERTY_VALUE_MAX];
property_get("debug.gr.swapinterval", pval, "1");
module->swapInterval = atoi(pval);
if (module->swapInterval < private_module_t::PRIV_MIN_SWAP_INTERVAL ||
module->swapInterval > private_module_t::PRIV_MAX_SWAP_INTERVAL) {
module->swapInterval = 1;
LOGW("Out of range (%d to %d) value for debug.gr.swapinterval, using 1",
private_module_t::PRIV_MIN_SWAP_INTERVAL,
private_module_t::PRIV_MAX_SWAP_INTERVAL);
}
#else
/* when surfaceflinger supports swapInterval then can just do this */
module->swapInterval = 1;
#endif
CALC_INIT();
module->currentIdx = -1;
pthread_cond_init(&(module->qpost), NULL);
pthread_mutex_init(&(module->qlock), NULL);
for (i = 0; i < NUM_FRAMEBUFFERS_MAX; i++) {
pthread_mutex_init(&(module->avail[i].lock), NULL);
pthread_cond_init(&(module->avail[i].cond), NULL);
module->avail[i].is_avail = true;
module->avail[i].state = AVL;
}
/* create display update thread */
pthread_t thread1;
if (pthread_create(&thread1, NULL, &disp_loop, (void *) module)) {
return -errno;
}
/*
* map the framebuffer
*/
int err;
module->numBuffers = info.yres_virtual / info.yres;
module->bufferMask = 0;
//adreno needs page aligned offsets. Align the fbsize to pagesize.
size_t fbSize = roundUpToPageSize(finfo.line_length * info.yres) * module->numBuffers;
module->framebuffer = new private_handle_t(fd, fbSize,
private_handle_t::PRIV_FLAGS_USES_PMEM, BUFFER_TYPE_UI,
module->fbFormat, info.xres, info.yres);
void* vaddr = mmap(0, fbSize, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
if (vaddr == MAP_FAILED) {
LOGE("Error mapping the framebuffer (%s)", strerror(errno));
return -errno;
}
module->framebuffer->base = intptr_t(vaddr);
memset(vaddr, 0, fbSize);
#if defined(HDMI_DUAL_DISPLAY)
/* Overlay for HDMI*/
pthread_mutex_init(&(module->overlayLock), NULL);
pthread_cond_init(&(module->overlayPost), NULL);
module->pobjOverlay = new Overlay();
module->currentOffset = 0;
module->exitHDMIUILoop = false;
module->hdmiStateChanged = false;
pthread_t hdmiUIThread;
pthread_create(&hdmiUIThread, NULL, &hdmi_ui_loop, (void *) module);
module->hdmiMirroringState = HDMI_NO_MIRRORING;
module->trueMirrorSupport = false;
#endif
pthread_mutex_init(&(module->bufferPostLock), NULL);
pthread_cond_init(&(module->bufferPostCond), NULL);
module->bufferPostDone = false;
return 0;
}
static int mapFrameBuffer(struct private_module_t* module)
{
pthread_mutex_lock(&module->lock);
int err = mapFrameBufferLocked(module);
pthread_mutex_unlock(&module->lock);
return err;
}
/*****************************************************************************/
static int fb_close(struct hw_device_t *dev)
{
fb_context_t* ctx = (fb_context_t*)dev;
#if defined(HDMI_DUAL_DISPLAY)
private_module_t* m = reinterpret_cast<private_module_t*>(
ctx->device.common.module);
pthread_mutex_lock(&m->overlayLock);
m->exitHDMIUILoop = true;
pthread_cond_signal(&(m->overlayPost));
pthread_mutex_unlock(&m->overlayLock);
#endif
if (ctx) {
free(ctx);
}
return 0;
}
int fb_device_open(hw_module_t const* module, const char* name,
hw_device_t** device)
{
int status = -EINVAL;
if (!strcmp(name, GRALLOC_HARDWARE_FB0)) {
alloc_device_t* gralloc_device;
status = gralloc_open(module, &gralloc_device);
if (status < 0)
return status;
/* initialize our state here */
fb_context_t *dev = (fb_context_t*)malloc(sizeof(*dev));
memset(dev, 0, sizeof(*dev));
/* initialize the procs */
dev->device.common.tag = HARDWARE_DEVICE_TAG;
dev->device.common.version = 0;
dev->device.common.module = const_cast<hw_module_t*>(module);
dev->device.common.close = fb_close;
dev->device.setSwapInterval = fb_setSwapInterval;
dev->device.post = fb_post;
dev->device.setUpdateRect = 0;
dev->device.compositionComplete = fb_compositionComplete;
dev->device.lockBuffer = fb_lockBuffer;
#if defined(HDMI_DUAL_DISPLAY)
dev->device.perform = fb_perform;
#endif
private_module_t* m = (private_module_t*)module;
status = mapFrameBuffer(m);
if (status >= 0) {
int stride = m->finfo.line_length / (m->info.bits_per_pixel >> 3);
const_cast<uint32_t&>(dev->device.flags) = 0;
const_cast<uint32_t&>(dev->device.width) = m->info.xres;
const_cast<uint32_t&>(dev->device.height) = m->info.yres;
const_cast<int&>(dev->device.stride) = stride;
const_cast<int&>(dev->device.format) = m->fbFormat;
const_cast<float&>(dev->device.xdpi) = m->xdpi;
const_cast<float&>(dev->device.ydpi) = m->ydpi;
const_cast<float&>(dev->device.fps) = m->fps;
const_cast<int&>(dev->device.minSwapInterval) = private_module_t::PRIV_MIN_SWAP_INTERVAL;
const_cast<int&>(dev->device.maxSwapInterval) = private_module_t::PRIV_MAX_SWAP_INTERVAL;
const_cast<int&>(dev->device.numFramebuffers) = m->numBuffers;
if (m->finfo.reserved[0] == 0x5444 &&
m->finfo.reserved[1] == 0x5055) {
dev->device.setUpdateRect = fb_setUpdateRect;
LOGD("UPDATE_ON_DEMAND supported");
}
*device = &dev->device.common;
}
// Close the gralloc module
gralloc_close(gralloc_device);
}
return status;
}
/* Copy a pmem buffer to the framebuffer */
static void
msm_copy_buffer(buffer_handle_t handle, int fd,
int width, int height, int format,
int x, int y, int w, int h)
{
struct {
unsigned int count;
mdp_blit_req req;
} blit;
private_handle_t *priv = (private_handle_t*) handle;
memset(&blit, 0, sizeof(blit));
blit.count = 1;
blit.req.flags = 0;
blit.req.alpha = 0xff;
blit.req.transp_mask = 0xffffffff;
blit.req.src.width = width;
blit.req.src.height = height;
blit.req.src.offset = 0;
blit.req.src.memory_id = priv->fd;
blit.req.dst.width = width;
blit.req.dst.height = height;
blit.req.dst.offset = 0;
blit.req.dst.memory_id = fd;
blit.req.dst.format = format;
blit.req.src_rect.x = blit.req.dst_rect.x = x;
blit.req.src_rect.y = blit.req.dst_rect.y = y;
blit.req.src_rect.w = blit.req.dst_rect.w = w;
blit.req.src_rect.h = blit.req.dst_rect.h = h;
if (ioctl(fd, MSMFB_BLIT, &blit))
LOGE("MSMFB_BLIT failed = %d", -errno);
}
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