Permalink
Switch branches/tags
last-mozilla-central chromium-import-r15462 chromium-import-latest bsmedberg-static-xpcom-registration-base UPDATE_PACKAGING_R14 UPDATE_PACKAGING_R13 UPDATE_PACKAGING_R12 UPDATE_PACKAGING_R11_1_MU UPDATE_PACKAGING_R11 UPDATE_PACKAGING_R10 UPDATE_PACKAGING_R9 UPDATE_PACKAGING_R8 UPDATE_PACKAGING_R7 UPDATE_PACKAGING_R6 UPDATE_PACKAGING_R5 THUNDERBIRD_3_3a3_RELEASE THUNDERBIRD_3_3a3_BUILD1 THUNDERBIRD_3_3a2_RELEASE THUNDERBIRD_3_3a2_BUILD1 THUNDERBIRD_3_3a1_RELEASE THUNDERBIRD_3_3a1_BUILD1 SEAMONKEY_2_1b2_RELEASE SEAMONKEY_2_1b2_BUILD2 SEAMONKEY_2_1b2_BUILD1 SEAMONKEY_2_1b1_RELEASE SEAMONKEY_2_1b1_BUILD2 SEAMONKEY_2_1b1_BUILD1 SEAMONKEY_2_1a3_RELEASE SEAMONKEY_2_1a3_BUILD2 SEAMONKEY_2_1a3_BUILD1 SEAMONKEY_2_1a2_RELEASE SEAMONKEY_2_1a2_BUILD2 SEAMONKEY_2_1a2_BUILD1 SEAMONKEY_2_1a1_RELEASE SEAMONKEY_2_1a1_BUILD1 SEAMONKEY_2_0a1_RELEASE SEAMONKEY_2_0a1_BUILD1 PRE_MOBILE_MERGE_20110406 PRE_MOBILE_MERGE MOZILLA_1_9_a7_BASE MOZILLA_1_9_a6_BASE MOZILLA_1_9_a4_BASE GECKO_2_1_BASE GECKO_2_0_BASE GECKO_1_9_2_BASE GECKO_1_9_1_BASE FIREFOX_4_0b12_RELEASE FIREFOX_4_0b12_BUILD1 FIREFOX_4_0b11_RELEASE FIREFOX_4_0b11_BUILD3 FIREFOX_4_0b11_BUILD2 FIREFOX_4_0b11_BUILD1 FIREFOX_4_0b10_RELEASE FIREFOX_4_0b10_BUILD1 FIREFOX_4_0b9_RELEASE FIREFOX_4_0b9_BUILD1 FIREFOX_4_0b8_RELEASE FIREFOX_4_0b8_BUILD1 FIREFOX_4_0b7_RELEASE FIREFOX_4_0b7_BUILD1 FIREFOX_4_0b6_RELEASE FIREFOX_4_0b6_BUILD2 FIREFOX_4_0b6_BUILD1 FIREFOX_4_0b5_RELEASE FIREFOX_4_0b5_BUILD1 FIREFOX_4_0b4_RELEASE FIREFOX_4_0b4_BUILD3 FIREFOX_4_0b4_BUILD2 FIREFOX_4_0b4_BUILD1 FIREFOX_4_0b3_RELEASE FIREFOX_4_0b3_BUILD3 FIREFOX_4_0b3_BUILD2 FIREFOX_4_0b3_BUILD1 FIREFOX_4_0b2_RELEASE FIREFOX_4_0b2_BUILD1 FIREFOX_4_0b1_RELEASE FIREFOX_4_0b1_BUILD2 FIREFOX_4_0b1_BUILD1 FIREFOX_3_7a5_RELEASE FIREFOX_3_7a5_BUILD1 FIREFOX_3_7a4_RELEASE FIREFOX_3_7a4_BUILD1 FIREFOX_3_7a3_RELEASE FIREFOX_3_7a3_BUILD1 FIREFOX_3_7a2_RELEASE FIREFOX_3_7a2_BUILD1 FIREFOX_3_7a1_RELEASE FIREFOX_3_7a1_BUILD1 FIREFOX_3_6a1_RELEASE FIREFOX_3_6a1_BUILD1 FIREFOX_3_1b2_RELEASE FIREFOX_3_1b2_BUILD2 FIREFOX_3_1b2_BUILD1 FIREFOX_3_1b1_RELEASE FIREFOX_3_1b1_BUILD1 FIREFOX_3_1a2_RELEASE FIREFOX_3_1a2_BUILD1 FIREFOX_3_1a1_RELEASE FIREFOX_3_1a1_BUILD2 FIREFOX_3_1a1_BUILD1
Nothing to show
Find file
Fetching contributors…
Cannot retrieve contributors at this time
221 lines (184 sloc) 5.89 KB
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: sw=2 ts=8 et ft=cpp : */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla Code.
*
* The Initial Developer of the Original Code is
* The Mozilla Foundation
* Portions created by the Initial Developer are Copyright (C) 2011
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Chris Jones <jones.chris.g@gmail.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include <fcntl.h>
#include <linux/fb.h>
#include <linux/kd.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <sys/types.h>
#include <unistd.h>
#include <vector>
#include "android/log.h"
#include "Framebuffer.h"
#include "gfxContext.h"
#include "gfxImageSurface.h"
#include "gfxUtils.h"
#include "mozilla/FileUtils.h"
#include "nsTArray.h"
#define LOG(args...) __android_log_print(ANDROID_LOG_INFO, "Gonk" , ## args)
using namespace std;
namespace mozilla {
namespace Framebuffer {
static int sFd = -1;
static size_t sMappedSize;
static struct fb_var_screeninfo sVi;
static size_t sActiveBuffer;
typedef vector<nsRefPtr<gfxImageSurface> > BufferVector;
BufferVector* sBuffers;
BufferVector& Buffers() { return *sBuffers; }
bool
SetGraphicsMode()
{
ScopedClose fd(open("/dev/tty0", O_RDWR | O_SYNC));
if (0 > fd.get()) {
// This is non-fatal; post-Cupcake kernels don't have tty0.
LOG("No /dev/tty0?");
} else if (ioctl(fd.get(), KDSETMODE, (void*) KD_GRAPHICS)) {
LOG("Error setting graphics mode on /dev/tty0");
return false;
}
return true;
}
bool
Open(nsIntSize* aScreenSize)
{
if (0 <= sFd)
return true;
if (!SetGraphicsMode())
return false;
ScopedClose fd(open("/dev/graphics/fb0", O_RDWR));
if (0 > fd.get()) {
LOG("Error opening framebuffer device");
return false;
}
struct fb_fix_screeninfo fi;
if (0 > ioctl(fd.get(), FBIOGET_FSCREENINFO, &fi)) {
LOG("Error getting fixed screeninfo");
return false;
}
if (0 > ioctl(fd.get(), FBIOGET_VSCREENINFO, &sVi)) {
LOG("Error getting variable screeninfo");
return false;
}
sMappedSize = fi.smem_len;
void* mem = mmap(0, sMappedSize, PROT_READ | PROT_WRITE, MAP_SHARED,
fd.rwget(), 0);
if (MAP_FAILED == mem) {
LOG("Error mmap'ing framebuffer");
return false;
}
sFd = fd.get();
fd.forget();
// The android porting doc requires a /dev/graphics/fb0 device
// that's double buffered with r5g6b5 format. Hence the
// hard-coded numbers here.
gfxASurface::gfxImageFormat format = gfxASurface::ImageFormatRGB16_565;
int bytesPerPixel = gfxASurface::BytePerPixelFromFormat(format);
gfxIntSize size(sVi.xres, sVi.yres);
long stride = size.width * bytesPerPixel;
size_t numFrameBytes = stride * size.height;
sBuffers = new BufferVector(2);
unsigned char* data = static_cast<unsigned char*>(mem);
for (size_t i = 0; i < 2; ++i, data += numFrameBytes) {
memset(data, 0, numFrameBytes);
Buffers()[i] = new gfxImageSurface(data, size, stride, format);
}
// Clear the framebuffer to a known state.
Present(nsIntRect());
*aScreenSize = size;
return true;
}
bool
GetSize(nsIntSize *aScreenSize) {
if (0 <= sFd)
return true;
ScopedClose fd(open("/dev/graphics/fb0", O_RDWR));
if (0 > fd.get()) {
LOG("Error opening framebuffer device");
return false;
}
if (0 > ioctl(fd.get(), FBIOGET_VSCREENINFO, &sVi)) {
LOG("Error getting variable screeninfo");
return false;
}
*aScreenSize = gfxIntSize(sVi.xres, sVi.yres);
return true;
}
void
Close()
{
if (0 > sFd)
return;
munmap(Buffers()[0]->Data(), sMappedSize);
delete sBuffers;
sBuffers = NULL;
close(sFd);
sFd = -1;
}
gfxASurface*
BackBuffer()
{
return Buffers()[!sActiveBuffer];
}
static gfxASurface*
FrontBuffer()
{
return Buffers()[sActiveBuffer];
}
void
Present(const nsIntRegion& aUpdated)
{
sActiveBuffer = !sActiveBuffer;
sVi.yres_virtual = sVi.yres * 2;
sVi.yoffset = sActiveBuffer * sVi.yres;
sVi.bits_per_pixel = 16;
if (ioctl(sFd, FBIOPUT_VSCREENINFO, &sVi) < 0) {
LOG("Error presenting front buffer");
}
nsRefPtr<gfxContext> ctx = new gfxContext(BackBuffer());
gfxUtils::PathFromRegion(ctx, aUpdated);
ctx->Clip();
ctx->SetSource(FrontBuffer());
ctx->SetOperator(gfxContext::OPERATOR_SOURCE);
ctx->Paint(1.0);
}
} // namespace Framebuffer
} // namespace mozilla