blob: dda311477dcbbbbde7f62f0669f96f90ceb8c87a [file] [log] [blame]
// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/compositor/gpu_surfaceless_browser_compositor_output_surface.h"
#include <utility>
#include "components/viz/service/display/output_surface_client.h"
#include "components/viz/service/display/output_surface_frame.h"
#include "components/viz/service/display_embedder/buffer_queue.h"
#include "components/viz/service/display_embedder/compositor_overlay_candidate_validator.h"
#include "content/browser/compositor/reflector_impl.h"
#include "gpu/GLES2/gl2extchromium.h"
#include "gpu/command_buffer/client/gles2_interface.h"
#include "gpu/command_buffer/common/swap_buffers_complete_params.h"
#include "services/ws/public/cpp/gpu/context_provider_command_buffer.h"
namespace content {
GpuSurfacelessBrowserCompositorOutputSurface::
GpuSurfacelessBrowserCompositorOutputSurface(
scoped_refptr<ws::ContextProviderCommandBuffer> context,
gpu::SurfaceHandle surface_handle,
const UpdateVSyncParametersCallback& update_vsync_parameters_callback,
std::unique_ptr<viz::CompositorOverlayCandidateValidator>
overlay_candidate_validator,
unsigned int target,
unsigned int internalformat,
gfx::BufferFormat format,
gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager)
: GpuBrowserCompositorOutputSurface(std::move(context),
update_vsync_parameters_callback,
std::move(overlay_candidate_validator)),
use_gpu_fence_(
context_provider_->ContextCapabilities().chromium_gpu_fence &&
context_provider_->ContextCapabilities()
.use_gpu_fences_for_overlay_planes),
gpu_fence_id_(0),
gpu_memory_buffer_manager_(gpu_memory_buffer_manager) {
capabilities_.uses_default_gl_framebuffer = false;
capabilities_.flipped_output_surface = true;
// Set |max_frames_pending| to 2 for surfaceless, which aligns scheduling
// more closely with the previous surfaced behavior.
// With a surface, swap buffer ack used to return early, before actually
// presenting the back buffer, enabling the browser compositor to run ahead.
// Surfaceless implementation acks at the time of actual buffer swap, which
// shifts the start of the new frame forward relative to the old
// implementation.
capabilities_.max_frames_pending = 2;
buffer_queue_.reset(new viz::BufferQueue(
context_provider_->ContextGL(), target, internalformat, format,
gpu_memory_buffer_manager_, surface_handle));
buffer_queue_->Initialize();
}
GpuSurfacelessBrowserCompositorOutputSurface::
~GpuSurfacelessBrowserCompositorOutputSurface() {
if (gpu_fence_id_ > 0)
context_provider_->ContextGL()->DestroyGpuFenceCHROMIUM(gpu_fence_id_);
}
bool GpuSurfacelessBrowserCompositorOutputSurface::IsDisplayedAsOverlayPlane()
const {
return true;
}
unsigned GpuSurfacelessBrowserCompositorOutputSurface::GetOverlayTextureId()
const {
return buffer_queue_->GetCurrentTextureId();
}
gfx::BufferFormat
GpuSurfacelessBrowserCompositorOutputSurface::GetOverlayBufferFormat() const {
DCHECK(buffer_queue_);
return buffer_queue_->buffer_format();
}
void GpuSurfacelessBrowserCompositorOutputSurface::SwapBuffers(
viz::OutputSurfaceFrame frame) {
DCHECK(buffer_queue_);
DCHECK(reshape_size_ == frame.size);
// TODO(ccameron): What if a swap comes again before OnGpuSwapBuffersCompleted
// happens, we'd see the wrong swap size there?
swap_size_ = reshape_size_;
gfx::Rect damage_rect =
frame.sub_buffer_rect ? *frame.sub_buffer_rect : gfx::Rect(swap_size_);
buffer_queue_->SwapBuffers(damage_rect);
GpuBrowserCompositorOutputSurface::SwapBuffers(std::move(frame));
}
void GpuSurfacelessBrowserCompositorOutputSurface::BindFramebuffer() {
DCHECK(buffer_queue_);
buffer_queue_->BindFramebuffer();
}
GLenum GpuSurfacelessBrowserCompositorOutputSurface::
GetFramebufferCopyTextureFormat() {
return buffer_queue_->internal_format();
}
void GpuSurfacelessBrowserCompositorOutputSurface::Reshape(
const gfx::Size& size,
float device_scale_factor,
const gfx::ColorSpace& color_space,
bool has_alpha,
bool use_stencil) {
reshape_size_ = size;
GpuBrowserCompositorOutputSurface::Reshape(
size, device_scale_factor, color_space, has_alpha, use_stencil);
DCHECK(buffer_queue_);
buffer_queue_->Reshape(size, device_scale_factor, color_space, use_stencil);
}
void GpuSurfacelessBrowserCompositorOutputSurface::OnGpuSwapBuffersCompleted(
std::vector<ui::LatencyInfo> latency_info,
const gpu::SwapBuffersCompleteParams& params) {
gpu::SwapBuffersCompleteParams modified_params(params);
bool force_swap = false;
if (params.swap_response.result ==
gfx::SwapResult::SWAP_NAK_RECREATE_BUFFERS) {
// Even through the swap failed, this is a fixable error so we can pretend
// it succeeded to the rest of the system.
modified_params.swap_response.result = gfx::SwapResult::SWAP_ACK;
buffer_queue_->RecreateBuffers();
force_swap = true;
}
buffer_queue_->PageFlipComplete();
GpuBrowserCompositorOutputSurface::OnGpuSwapBuffersCompleted(
std::move(latency_info), modified_params);
if (force_swap)
client_->SetNeedsRedrawRect(gfx::Rect(swap_size_));
}
unsigned GpuSurfacelessBrowserCompositorOutputSurface::UpdateGpuFence() {
if (!use_gpu_fence_)
return 0;
if (gpu_fence_id_ > 0)
context_provider_->ContextGL()->DestroyGpuFenceCHROMIUM(gpu_fence_id_);
gpu_fence_id_ = context_provider_->ContextGL()->CreateGpuFenceCHROMIUM();
return gpu_fence_id_;
}
} // namespace content