/libgralloc/framebuffer.cpp
http://github.com/CyanogenMod/android_device_zte_blade · C++ · 857 lines · 672 code · 109 blank · 76 comment · 104 complexity · 27393ef6ca051cae7f62889eadbd0268 MD5 · raw file
- /*
- * Copyright (C) 2008 The Android Open Source Project
- * Copyright (c) 2010, 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 <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 <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
- #if defined(HDMI_DUAL_DISPLAY)
- #define AS_1080_RATIO_H (4.25/100) // Default Action Safe vertical limit for 1080p
- #define AS_1080_RATIO_W (4.25/100) // Default Action Safe horizontal limit for 1080p
- #define AS_720_RATIO_H (6.0/100) // Default Action Safe vertical limit for 720p
- #define AS_720_RATIO_W (4.25/100) // Default Action Safe horizontal limit for 720p
- #define AS_480_RATIO_H (8.0/100) // Default Action Safe vertical limit for 480p
- #define AS_480_RATIO_W (5.0/100) // Default Action Safe horizontal limit for 480p
- #define HEIGHT_1080P 1080
- #define HEIGHT_720P 720
- #define HEIGHT_480P 480
- #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;
- }
- /** align */
- static inline size_t ALIGN(size_t x, size_t align) {
- return (x + align-1) & ~(align-1);
- }
- #endif
- /*****************************************************************************/
- 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)
- {
- 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;
- 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");
- }
- if (cur_buf == -1) {
- pthread_mutex_lock(&(m->avail[nxtBuf.idx].lock));
- m->avail[nxtBuf.idx].is_avail = true;
- pthread_cond_signal(&(m->avail[nxtBuf.idx].cond));
- pthread_mutex_unlock(&(m->avail[nxtBuf.idx].lock));
- } else {
- pthread_mutex_lock(&(m->avail[cur_buf].lock));
- m->avail[cur_buf].is_avail = true;
- pthread_cond_signal(&(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 void *hdmi_ui_loop(void *ptr)
- {
- private_module_t* m = reinterpret_cast<private_module_t*>(
- ptr);
- while (1) {
- pthread_mutex_lock(&m->overlayLock);
- pthread_cond_wait(&(m->overlayPost), &(m->overlayLock));
- if (m->exitHDMIUILoop) {
- pthread_mutex_unlock(&m->overlayLock);
- return NULL;
- }
- float asWidthRatio = m->actionsafeWidthRatio/100.0f;
- float asHeightRatio = m->actionsafeHeightRatio/100.0f;
- if (m->pobjOverlay) {
- Overlay* pTemp = m->pobjOverlay;
- if (!m->enableHDMIOutput)
- pTemp->closeChannel();
- else if (m->enableHDMIOutput && !m->videoOverlay) {
- if (!pTemp->isChannelUP()) {
- int alignedW = ALIGN(m->info.xres, 32);
- if (pTemp->startChannel(alignedW, m->info.yres,
- m->fbFormat, 1, false, true)) {
- pTemp->setFd(m->framebuffer->fd);
- pTemp->setCrop(0, 0, m->info.xres, m->info.yres);
- } else
- pTemp->closeChannel();
- }
- if (pTemp->isChannelUP()) {
- int width = pTemp->getFBWidth();
- int height = pTemp->getFBHeight();
- int aswidth = width, asheight = height;
- int asX = 0, asY = 0; // Action safe x, y co-ordinates
- int fbwidth = m->info.xres, fbheight = m->info.yres;
- float defaultASWidthRatio = 0.0f, defaultASHeightRatio = 0.0f;
- if(HEIGHT_1080P == height) {
- defaultASHeightRatio = AS_1080_RATIO_H;
- defaultASWidthRatio = AS_1080_RATIO_W;
- } else if(HEIGHT_720P == height) {
- defaultASHeightRatio = AS_720_RATIO_H;
- defaultASWidthRatio = AS_720_RATIO_W;
- } else if(HEIGHT_480P == height) {
- defaultASHeightRatio = AS_480_RATIO_H;
- defaultASWidthRatio = AS_480_RATIO_W;
- }
- if(asWidthRatio <= 0.0f)
- asWidthRatio = defaultASWidthRatio;
- if(asHeightRatio <= 0.0f)
- asHeightRatio = defaultASHeightRatio;
- aswidth = (int)((float)width - (float)(width * asWidthRatio));
- asheight = (int)((float)height - (float)(height * asHeightRatio));
- asX = (width - aswidth) / 2;
- asY = (height - asheight) / 2;
- int rot = m->orientation;
- if (fbwidth < fbheight) {
- switch(rot) {
- // ROT_0
- case 0:
- // ROT_180
- case HAL_TRANSFORM_ROT_180: {
- aswidth = (asheight * fbwidth) / fbheight;
- asX = (width - aswidth) / 2;
- if(rot == HAL_TRANSFORM_ROT_180)
- rot = OVERLAY_TRANSFORM_ROT_180;
- else
- rot = 0;
- }
- break;
- // ROT_90
- case HAL_TRANSFORM_ROT_90:
- rot = OVERLAY_TRANSFORM_ROT_270;
- break;
- // ROT_270
- case HAL_TRANSFORM_ROT_270:
- rot = OVERLAY_TRANSFORM_ROT_90;
- break;
- }
- }
- else if (fbwidth > fbheight) {
- switch(rot) {
- // ROT_0
- case 0:
- rot = 0;
- break;
- // ROT_180
- case HAL_TRANSFORM_ROT_180:
- rot = OVERLAY_TRANSFORM_ROT_180;
- break;
- // ROT_90
- case HAL_TRANSFORM_ROT_90:
- // ROT_270
- case HAL_TRANSFORM_ROT_270: {
- //Swap width and height
- int t = fbwidth;
- fbwidth = fbheight;
- fbheight = t;
- aswidth = (asheight * fbwidth) / fbheight;
- asX = (width - aswidth) / 2;
- if(rot == HAL_TRANSFORM_ROT_90)
- rot = OVERLAY_TRANSFORM_ROT_270;
- else
- rot = OVERLAY_TRANSFORM_ROT_90;
- }
- break;
- }
- }
- pTemp->setParameter(OVERLAY_TRANSFORM,
- rot);
- EVEN_OUT(asX);
- EVEN_OUT(asY);
- EVEN_OUT(aswidth);
- EVEN_OUT(asheight);
- pTemp->setPosition(asX, asY, aswidth, asheight);
- pTemp->queueBuffer(m->currentOffset);
- }
- }
- else
- pTemp->closeChannel();
- }
- 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 && pTemp) {
- pTemp->closeChannel();
- m->videoOverlay = true;
- pthread_cond_signal(&(m->overlayPost));
- }
- else {
- m->videoOverlay = false;
- pthread_cond_signal(&(m->overlayPost));
- }
- pthread_mutex_unlock(&m->overlayLock);
- return 0;
- }
- static int fb_enableHDMIOutput(struct framebuffer_device_t* dev, int enable)
- {
- private_module_t* m = reinterpret_cast<private_module_t*>(
- dev->common.module);
- pthread_mutex_lock(&m->overlayLock);
- Overlay* pTemp = m->pobjOverlay;
- if (!enable && pTemp)
- pTemp->closeChannel();
- m->enableHDMIOutput = enable;
- pthread_cond_signal(&(m->overlayPost));
- pthread_mutex_unlock(&m->overlayLock);
- return 0;
- }
- static int fb_setActionSafeWidthRatio(struct framebuffer_device_t* dev, float asWidthRatio)
- {
- private_module_t* m = reinterpret_cast<private_module_t*>(
- dev->common.module);
- pthread_mutex_lock(&m->overlayLock);
- m->actionsafeWidthRatio = asWidthRatio;
- pthread_mutex_unlock(&m->overlayLock);
- return 0;
- }
- static int fb_setActionSafeHeightRatio(struct framebuffer_device_t* dev, float asHeightRatio)
- {
- private_module_t* m = reinterpret_cast<private_module_t*>(
- dev->common.module);
- pthread_mutex_lock(&m->overlayLock);
- m->actionsafeHeightRatio = asHeightRatio;
- 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
- static int fb_post(struct framebuffer_device_t* dev, buffer_handle_t buffer)
- {
- if (private_handle_t::validate(buffer) < 0)
- return -EINVAL;
- int nxtIdx;
- 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) % NUM_BUFFERS;
- 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));
- m->avail[nxtIdx].is_avail = false;
- 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));
- // LCDC: after new buffer grabbed by MDP can unlock previous
- // (current) buffer
- if (m->currentBuffer) {
- if (m->swapInterval != 0) {
- pthread_mutex_lock(&(m->avail[m->currentIdx].lock));
- if (! m->avail[m->currentIdx].is_avail) {
- pthread_cond_wait(&(m->avail[m->currentIdx].cond),
- &(m->avail[m->currentIdx].lock));
- m->avail[m->currentIdx].is_avail = true;
- }
- pthread_mutex_unlock(&(m->avail[m->currentIdx].lock));
- }
- 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);
- }
- return 0;
- }
- static int fb_compositionComplete(struct framebuffer_device_t* dev)
- {
- // TODO: Properly implement composition complete callback
- glFinish();
- 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];
- 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. */
- char property[PROPERTY_VALUE_MAX];
- 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;
- }
- /*
- * Request NUM_BUFFERS screens (at lest 2 for page flipping)
- */
- info.yres_virtual = info.yres * NUM_BUFFERS;
- uint32_t flags = PAGE_FLIP;
- if (ioctl(fd, FBIOPUT_VSCREENINFO, &info) == -1) {
- info.yres_virtual = info.yres;
- flags &= ~PAGE_FLIP;
- LOGW("FBIOPUT_VSCREENINFO failed, page flipping not supported");
- }
- if (info.yres_virtual < info.yres * 2) {
- // we need at least 2 for page-flipping
- info.yres_virtual = info.yres;
- 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;
- int refreshRate = 1000000000000000LLU /
- (
- uint64_t( info.upper_margin + info.lower_margin + info.yres )
- * ( info.left_margin + info.right_margin + info.xres )
- * info.pixclock
- );
- if (refreshRate == 0) {
- // bleagh, bad info from the driver
- refreshRate = 60*1000; // 60 Hz
- }
- 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;
- float fps = refreshRate / 1000.0f;
- 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
- module->currentIdx = -1;
- pthread_cond_init(&(module->qpost), NULL);
- pthread_mutex_init(&(module->qlock), NULL);
- for (i = 0; i < NUM_BUFFERS; i++) {
- pthread_mutex_init(&(module->avail[i].lock), NULL);
- pthread_cond_init(&(module->avail[i].cond), NULL);
- module->avail[i].is_avail = true;
- }
- /* create display update thread */
- pthread_t thread1;
- if (pthread_create(&thread1, NULL, &disp_loop, (void *) module)) {
- return -errno;
- }
- /*
- * map the framebuffer
- */
- int err;
- size_t fbSize = roundUpToPageSize(finfo.line_length * info.yres_virtual);
- module->framebuffer = new private_handle_t(dup(fd), fbSize,
- private_handle_t::PRIV_FLAGS_USES_PMEM);
- module->numBuffers = info.yres_virtual / info.yres;
- module->bufferMask = 0;
- 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;
- pthread_t hdmiUIThread;
- pthread_create(&hdmiUIThread, NULL, &hdmi_ui_loop, (void *) module);
- #endif
- 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;
- #if defined(HDMI_DUAL_DISPLAY)
- dev->device.orientationChanged = fb_orientationChanged;
- dev->device.videoOverlayStarted = fb_videoOverlayStarted;
- dev->device.enableHDMIOutput = fb_enableHDMIOutput;
- dev->device.setActionSafeWidthRatio = fb_setActionSafeWidthRatio;
- dev->device.setActionSafeHeightRatio = fb_setActionSafeHeightRatio;
- #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;
- 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);
- }