chromium/gpu/command_buffer/service/shared_image/raw_draw_image_backing_factory.cc

// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "gpu/command_buffer/service/shared_image/raw_draw_image_backing_factory.h"

#include "base/logging.h"
#include "gpu/command_buffer/common/shared_image_usage.h"
#include "gpu/command_buffer/service/shared_image/raw_draw_image_backing.h"

namespace gpu {
// NOTE: These are the *exact* set of usages that the client must list in order
// for the RawDraw backing to be applied. The client must explicitly opt into
// using RawDraw, and that only in the expected context of rasterizing content
// via OOP-raster into PaintOps to play back during compositing.
// NOTE: `SHARED_IMAGE_USAGE_RASTER_OVER_GLES2_ONLY` is not listed as RawDraw
// works only with OOP-raster (since it must store PaintOps for playback during
// compositing).
constexpr SharedImageUsageSet kRequiredUsage = …;

RawDrawImageBackingFactory::RawDrawImageBackingFactory()
    : … { … }

RawDrawImageBackingFactory::~RawDrawImageBackingFactory() = default;

std::unique_ptr<SharedImageBacking>
RawDrawImageBackingFactory::CreateSharedImage(
    const Mailbox& mailbox,
    viz::SharedImageFormat format,
    SurfaceHandle surface_handle,
    const gfx::Size& size,
    const gfx::ColorSpace& color_space,
    GrSurfaceOrigin surface_origin,
    SkAlphaType alpha_type,
    SharedImageUsageSet usage,
    std::string debug_label,
    bool is_thread_safe) { … }

std::unique_ptr<SharedImageBacking>
RawDrawImageBackingFactory::CreateSharedImage(
    const Mailbox& mailbox,
    viz::SharedImageFormat format,
    const gfx::Size& size,
    const gfx::ColorSpace& color_space,
    GrSurfaceOrigin surface_origin,
    SkAlphaType alpha_type,
    SharedImageUsageSet usage,
    std::string debug_label,
    bool is_thread_safe,
    base::span<const uint8_t> data) { … }

std::unique_ptr<SharedImageBacking>
RawDrawImageBackingFactory::CreateSharedImage(
    const Mailbox& mailbox,
    viz::SharedImageFormat format,
    const gfx::Size& size,
    const gfx::ColorSpace& color_space,
    GrSurfaceOrigin surface_origin,
    SkAlphaType alpha_type,
    SharedImageUsageSet usage,
    std::string debug_label,
    gfx::GpuMemoryBufferHandle handle) { … }

bool RawDrawImageBackingFactory::CanUseRawDrawImageBacking(
    SharedImageUsageSet usage,
    GrContextType gr_context_type) const { … }

bool RawDrawImageBackingFactory::IsSupported(
    SharedImageUsageSet usage,
    viz::SharedImageFormat format,
    const gfx::Size& size,
    bool thread_safe,
    gfx::GpuMemoryBufferType gmb_type,
    GrContextType gr_context_type,
    base::span<const uint8_t> pixel_data) { … }

SharedImageBackingType RawDrawImageBackingFactory::GetBackingType() { … }

}  // namespace gpu