зеркало из https://github.com/mozilla/gecko-dev.git
Bug 1033607 - Get rid of Thebes backed gfxContexts in Gonk Widget code by killing of a bunch of non-OMTC code. r=mattwoodrow
This commit is contained in:
Jonathan Watt
Родитель
7065a5f7a1
Коммит
3a2550a20b
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@ -15,120 +15,27 @@
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* limitations under the License.
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*/
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#include <fcntl.h>
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#include <linux/fb.h>
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#include <linux/kd.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/ioctl.h>
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#include <sys/mman.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <vector>
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#include "Framebuffer.h"
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#include "android/log.h"
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#include <fcntl.h>
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#include <linux/fb.h>
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#include <sys/ioctl.h>
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#include "Framebuffer.h"
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#include "gfxContext.h"
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#include "gfxImageSurface.h"
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#include "gfxUtils.h"
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#include "nsSize.h"
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#include "mozilla/FileUtils.h"
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#include "nsTArray.h"
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#include "nsRegion.h"
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#define LOG(args...) __android_log_print(ANDROID_LOG_INFO, "Gonk" , ## args)
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using namespace std;
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namespace mozilla {
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namespace Framebuffer {
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static int sFd = -1;
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static size_t sMappedSize;
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static struct fb_var_screeninfo sVi;
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static size_t sActiveBuffer;
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typedef vector<nsRefPtr<gfxImageSurface> > BufferVector;
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BufferVector* sBuffers;
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static gfxIntSize *sScreenSize = nullptr;
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BufferVector& Buffers() { return *sBuffers; }
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bool
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SetGraphicsMode()
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{
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ScopedClose fd(open("/dev/tty0", O_RDWR | O_SYNC));
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if (0 > fd.get()) {
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// This is non-fatal; post-Cupcake kernels don't have tty0.
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LOG("No /dev/tty0?");
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} else if (ioctl(fd.get(), KDSETMODE, (void*) KD_GRAPHICS)) {
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LOG("Error setting graphics mode on /dev/tty0");
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return false;
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}
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return true;
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}
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bool
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Open()
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{
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if (0 <= sFd)
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return true;
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if (!SetGraphicsMode())
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return false;
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ScopedClose fd(open("/dev/graphics/fb0", O_RDWR));
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if (0 > fd.get()) {
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LOG("Error opening framebuffer device");
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return false;
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}
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struct fb_fix_screeninfo fi;
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if (0 > ioctl(fd.get(), FBIOGET_FSCREENINFO, &fi)) {
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LOG("Error getting fixed screeninfo");
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return false;
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}
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if (0 > ioctl(fd.get(), FBIOGET_VSCREENINFO, &sVi)) {
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LOG("Error getting variable screeninfo");
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return false;
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}
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sMappedSize = fi.smem_len;
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void* mem = mmap(0, sMappedSize, PROT_READ | PROT_WRITE, MAP_SHARED,
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fd.rwget(), 0);
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if (MAP_FAILED == mem) {
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LOG("Error mmap'ing framebuffer");
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return false;
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}
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sFd = fd.get();
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fd.forget();
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// The android porting doc requires a /dev/graphics/fb0 device
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// that's double buffered with r5g6b5 format. Hence the
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// hard-coded numbers here.
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gfxImageFormat format = gfxImageFormat::RGB16_565;
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if (!sScreenSize) {
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sScreenSize = new gfxIntSize(sVi.xres, sVi.yres);
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}
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long stride = fi.line_length;
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size_t numFrameBytes = stride * sScreenSize->height;
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sBuffers = new BufferVector(2);
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unsigned char* data = static_cast<unsigned char*>(mem);
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for (size_t i = 0; i < 2; ++i, data += numFrameBytes) {
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memset(data, 0, numFrameBytes);
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Buffers()[i] = new gfxImageSurface(data, *sScreenSize, stride, format);
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}
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// Clear the framebuffer to a known state.
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Present(nsIntRect());
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return true;
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}
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bool
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GetSize(nsIntSize *aScreenSize) {
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// If the framebuffer has been opened, we should always have the size.
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@ -153,54 +60,5 @@ GetSize(nsIntSize *aScreenSize) {
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return true;
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}
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void
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Close()
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{
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if (0 > sFd)
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return;
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munmap(Buffers()[0]->Data(), sMappedSize);
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delete sBuffers;
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sBuffers = nullptr;
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delete sScreenSize;
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sScreenSize = nullptr;
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close(sFd);
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sFd = -1;
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}
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gfxASurface*
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BackBuffer()
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{
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return Buffers()[!sActiveBuffer];
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}
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static gfxASurface*
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FrontBuffer()
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{
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return Buffers()[sActiveBuffer];
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}
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void
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Present(const nsIntRegion& aUpdated)
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{
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sActiveBuffer = !sActiveBuffer;
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sVi.yres_virtual = sVi.yres * 2;
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sVi.yoffset = sActiveBuffer * sVi.yres;
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sVi.bits_per_pixel = 16;
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if (ioctl(sFd, FBIOPUT_VSCREENINFO, &sVi) < 0) {
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LOG("Error presenting front buffer");
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}
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nsRefPtr<gfxContext> ctx = new gfxContext(BackBuffer());
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gfxUtils::PathFromRegion(ctx, aUpdated);
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ctx->Clip();
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ctx->SetSource(FrontBuffer());
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ctx->SetOperator(gfxContext::OPERATOR_SOURCE);
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ctx->Paint(1.0);
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}
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} // namespace Framebuffer
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} // namespace mozilla
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@ -15,48 +15,14 @@
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* limitations under the License.
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*/
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class gfxASurface;
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class nsIntRegion;
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class nsIntSize;
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namespace mozilla {
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namespace Framebuffer {
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//
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// The general usage of Framebuffer is
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//
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// -- in initialization code --
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// Open();
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//
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// -- ready to paint next frame --
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// nsRefPtr<gfxASurface> backBuffer = BackBuffer();
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// // ...
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// Paint(backBuffer);
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// // ...
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// Present();
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//
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// Return true if the fbdev was successfully opened. If this fails,
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// the result of all further calls is undefined. Open() is idempotent.
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bool Open();
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// After Close(), the result of all further calls is undefined.
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// Close() is idempotent, and Open() can be called again after
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// Close().
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void Close();
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// Return true if the fbdev was successfully opened or the size was
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// already cached.
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bool GetSize(nsIntSize *aScreenSize);
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// Return the buffer to be drawn into, that will be the next frame.
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gfxASurface* BackBuffer();
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// Swap the front buffer for the back buffer. |aUpdated| is the
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// region of the back buffer that was repainted.
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void Present(const nsIntRegion& aUpdated);
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} // namespace Framebuffer
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} // namespace mozilla
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@ -68,14 +68,10 @@ static uint32_t sScreenRotation;
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static uint32_t sPhysicalScreenRotation;
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static nsIntRect sVirtualBounds;
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static nsRefPtr<GLContext> sGLContext;
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static nsTArray<nsWindow *> sTopWindows;
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static nsWindow *gFocusedWindow = nullptr;
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static bool sFramebufferOpen;
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static bool sUsingOMTC;
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static bool sUsingHwc;
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static bool sScreenInitialized;
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static nsRefPtr<gfxASurface> sOMTCSurface;
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namespace {
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@ -160,15 +156,11 @@ nsWindow::nsWindow()
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// to know the color depth, which asks our native window.
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// This has to happen after other init has finished.
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gfxPlatform::GetPlatform();
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sUsingOMTC = ShouldUseOffMainThreadCompositing();
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if (!ShouldUseOffMainThreadCompositing()) {
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MOZ_CRASH("How can we render apps, then?");
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}
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//Update sUsingHwc whenever layers.composer2d.enabled changes
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Preferences::AddBoolVarCache(&sUsingHwc, "layers.composer2d.enabled");
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if (sUsingOMTC) {
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sOMTCSurface = new gfxImageSurface(gfxIntSize(1, 1),
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gfxImageFormat::RGB24);
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}
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}
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}
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@ -201,35 +193,6 @@ nsWindow::DoDraw(void)
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LayerManager* lm = targetWindow->GetLayerManager();
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if (mozilla::layers::LayersBackend::LAYERS_CLIENT == lm->GetBackendType()) {
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// No need to do anything, the compositor will handle drawing
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} else if (mozilla::layers::LayersBackend::LAYERS_BASIC == lm->GetBackendType()) {
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MOZ_ASSERT(sFramebufferOpen || sUsingOMTC);
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nsRefPtr<gfxASurface> targetSurface;
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if(sUsingOMTC)
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targetSurface = sOMTCSurface;
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else
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targetSurface = Framebuffer::BackBuffer();
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{
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nsRefPtr<gfxContext> ctx = new gfxContext(targetSurface);
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gfxUtils::PathFromRegion(ctx, sVirtualBounds);
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ctx->Clip();
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// No double-buffering needed.
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AutoLayerManagerSetup setupLayerManager(
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targetWindow, ctx, mozilla::layers::BufferMode::BUFFER_NONE,
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ScreenRotation(EffectiveScreenRotation()));
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listener = targetWindow->GetWidgetListener();
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if (listener) {
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listener->PaintWindow(targetWindow, sVirtualBounds);
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}
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}
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if (!sUsingOMTC) {
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targetSurface->Flush();
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Framebuffer::Present(sVirtualBounds);
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}
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} else {
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NS_RUNTIMEABORT("Unexpected layer manager type");
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}
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@ -537,12 +500,7 @@ nsWindow::GetLayerManager(PLayerTransactionChild* aShadowManager,
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if (mLayerManager) {
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// This layer manager might be used for painting outside of DoDraw(), so we need
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// to set the correct rotation on it.
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if (mLayerManager->GetBackendType() == LayersBackend::LAYERS_BASIC) {
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BasicLayerManager* manager =
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static_cast<BasicLayerManager*>(mLayerManager.get());
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manager->SetDefaultTargetConfiguration(mozilla::layers::BufferMode::BUFFER_NONE,
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ScreenRotation(EffectiveScreenRotation()));
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} else if (mLayerManager->GetBackendType() == LayersBackend::LAYERS_CLIENT) {
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if (mLayerManager->GetBackendType() == LayersBackend::LAYERS_CLIENT) {
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ClientLayerManager* manager =
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static_cast<ClientLayerManager*>(mLayerManager.get());
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manager->SetDefaultTargetConfiguration(mozilla::layers::BufferMode::BUFFER_NONE,
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@ -561,38 +519,13 @@ nsWindow::GetLayerManager(PLayerTransactionChild* aShadowManager,
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return nullptr;
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}
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if (sUsingOMTC) {
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CreateCompositor();
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if (mCompositorParent) {
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uint64_t rootLayerTreeId = mCompositorParent->RootLayerTreeId();
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CompositorParent::SetControllerForLayerTree(rootLayerTreeId, new ParentProcessController());
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CompositorParent::GetAPZCTreeManager(rootLayerTreeId)->SetDPI(GetDPI());
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}
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if (mLayerManager)
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return mLayerManager;
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}
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if (mUseLayersAcceleration) {
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DebugOnly<nsIntRect> fbBounds = gScreenBounds;
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if (!sGLContext) {
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sGLContext = GLContextProvider::CreateForWindow(this);
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}
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MOZ_ASSERT(fbBounds.value == gScreenBounds);
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}
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// Fall back to software rendering.
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sFramebufferOpen = Framebuffer::Open();
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if (sFramebufferOpen) {
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LOG("Falling back to framebuffer software rendering");
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} else {
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LOGE("Failed to mmap fb(?!?), aborting ...");
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NS_RUNTIMEABORT("Can't open GL context and can't fall back on /dev/graphics/fb0 ...");
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}
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mLayerManager = new ClientLayerManager(this);
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mUseLayersAcceleration = false;
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MOZ_ASSERT(mLayerManager);
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return mLayerManager;
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}
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