1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147
|
// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/viz/service/display_embedder/skia_output_device_x11.h"
#include <utility>
#include <vector>
#include "base/logging.h"
#include "base/memory/ref_counted_memory.h"
#include "gpu/command_buffer/service/graphite_shared_context.h"
#include "third_party/libyuv/include/libyuv/planar_functions.h"
#include "third_party/skia/include/core/SkImageInfo.h"
#include "third_party/skia/include/gpu/graphite/Context.h"
#include "ui/base/x/x11_util.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/x/xproto.h"
namespace viz {
namespace {
x11::GraphicsContext CreateGC(x11::Connection* connection, x11::Window window) {
auto gc = connection->GenerateId<x11::GraphicsContext>();
connection->CreateGC({gc, window});
return gc;
}
struct ReadPixelsContext {
std::unique_ptr<const SkImage::AsyncReadResult> async_result;
bool finished = false;
};
void OnReadPixelsDone(
void* raw_ctx,
std::unique_ptr<const SkImage::AsyncReadResult> async_result) {
ReadPixelsContext* context = reinterpret_cast<ReadPixelsContext*>(raw_ctx);
context->async_result = std::move(async_result);
context->finished = true;
}
} // namespace
// static
std::unique_ptr<SkiaOutputDeviceX11> SkiaOutputDeviceX11::Create(
scoped_refptr<gpu::SharedContextState> context_state,
gfx::AcceleratedWidget widget,
gpu::MemoryTracker* memory_tracker,
DidSwapBufferCompleteCallback did_swap_buffer_complete_callback) {
auto window = static_cast<x11::Window>(widget);
auto attributes =
x11::Connection::Get()->GetWindowAttributes({window}).Sync();
if (!attributes) {
DLOG(ERROR) << "Failed to get attributes for window "
<< static_cast<uint32_t>(window);
return {};
}
return std::make_unique<SkiaOutputDeviceX11>(
base::PassKey<SkiaOutputDeviceX11>(), std::move(context_state), window,
attributes->visual, memory_tracker, did_swap_buffer_complete_callback);
}
SkiaOutputDeviceX11::SkiaOutputDeviceX11(
base::PassKey<SkiaOutputDeviceX11> pass_key,
scoped_refptr<gpu::SharedContextState> context_state,
x11::Window window,
x11::VisualId visual,
gpu::MemoryTracker* memory_tracker,
DidSwapBufferCompleteCallback did_swap_buffer_complete_callback)
: SkiaOutputDeviceOffscreen(context_state,
gfx::SurfaceOrigin::kTopLeft,
true /* has_alpha */,
memory_tracker,
did_swap_buffer_complete_callback),
connection_(x11::Connection::Get()),
window_(window),
visual_(visual),
gc_(CreateGC(connection_, window_)) {
// |capabilities_| should be set by SkiaOutputDeviceOffscreen.
DCHECK_EQ(capabilities_.output_surface_origin, gfx::SurfaceOrigin::kTopLeft);
DCHECK(capabilities_.supports_post_sub_buffer);
}
SkiaOutputDeviceX11::~SkiaOutputDeviceX11() {
connection_->FreeGC({gc_});
}
bool SkiaOutputDeviceX11::Reshape(const ReshapeParams& params) {
if (!SkiaOutputDeviceOffscreen::Reshape(params)) {
return false;
}
auto image_info =
SkImageInfo::MakeN32(params.image_info.width(),
params.image_info.height(), kOpaque_SkAlphaType);
pixels_ = base::MakeRefCounted<base::RefCountedBytes>(
image_info.computeMinByteSize());
return true;
}
void SkiaOutputDeviceX11::Present(const std::optional<gfx::Rect>& update_rect,
BufferPresentedCallback feedback,
OutputSurfaceFrame frame) {
gfx::Rect rect = update_rect.value_or(
gfx::Rect(0, 0, sk_surface_->width(), sk_surface_->height()));
StartSwapBuffers(std::move(feedback));
if (!rect.IsEmpty()) {
auto dst_info =
SkImageInfo::MakeN32(rect.width(), rect.height(), kOpaque_SkAlphaType);
DCHECK_GE(pixels_->size(), dst_info.computeMinByteSize());
SkPixmap dst_pixmap(dst_info, pixels_->data(), dst_info.minRowBytes());
if (context_state_->gr_context()) {
bool result = sk_surface_->readPixels(dst_pixmap, rect.x(), rect.y());
LOG_IF(FATAL, !result)
<< "Failed to read pixels from offscreen SkSurface.";
} else {
auto* graphite_shared_context = context_state_->graphite_shared_context();
CHECK(graphite_shared_context);
ReadPixelsContext context;
graphite_shared_context->asyncRescaleAndReadPixels(
sk_surface_.get(), dst_info, gfx::RectToSkIRect(rect),
SkImage::RescaleGamma::kSrc, SkImage::RescaleMode::kRepeatedLinear,
base::BindOnce(&OnReadPixelsDone), &context);
graphite_shared_context->submit(skgpu::graphite::SyncToCpu::kYes);
LOG_IF(FATAL, !context.async_result)
<< "Failed to read pixels from offscreen SkSurface.";
libyuv::CopyPlane(
static_cast<const uint8_t*>(context.async_result->data(0)),
context.async_result->rowBytes(0),
static_cast<uint8_t*>(dst_pixmap.writable_addr()),
dst_pixmap.rowBytes(), dst_info.minRowBytes(), dst_info.height());
}
// TODO(penghuang): Switch to XShmPutImage.
ui::DrawPixmap(x11::Connection::Get(), visual_, window_, gc_, dst_pixmap,
0 /* src_x */, 0 /* src_y */, rect.x() /* dst_x */,
rect.y() /* dst_y */, rect.width(), rect.height());
connection_->Flush();
}
FinishSwapBuffers(gfx::SwapCompletionResult(gfx::SwapResult::SWAP_ACK),
gfx::Size(sk_surface_->width(), sk_surface_->height()),
std::move(frame));
}
} // namespace viz
|