external_texture_helper.cc | Explore in Territory

// 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.

#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/351564777): Remove this and convert code to safer constructs.
#pragma allow_unsafe_buffers
#endif

#include "third_party/blink/renderer/modules/webgpu/external_texture_helper.h"

#include "media/base/video_frame.h"
#include "media/base/video_transformation.h"
#include "media/renderers/paint_canvas_video_renderer.h"
#include "third_party/blink/renderer/core/html/media/html_video_element.h"
#include "third_party/blink/renderer/modules/webcodecs/video_frame.h"
#include "third_party/blink/renderer/modules/webgpu/dawn_conversions.h"
#include "third_party/blink/renderer/modules/webgpu/gpu_adapter.h"
#include "third_party/blink/renderer/modules/webgpu/gpu_device.h"
#include "third_party/blink/renderer/modules/webgpu/gpu_supported_features.h"
#include "third_party/blink/renderer/modules/webgpu/gpu_texture.h"
#include "third_party/blink/renderer/modules/webgpu/gpu_texture_view.h"
#include "third_party/blink/renderer/platform/graphics/canvas_color_params.h"
#include "third_party/blink/renderer/platform/graphics/canvas_resource_provider.h"
#include "third_party/blink/renderer/platform/graphics/gpu/shared_gpu_context.h"
#include "third_party/blink/renderer/platform/graphics/gpu/webgpu_mailbox_texture.h"
#include "third_party/blink/renderer/platform/graphics/video_frame_image_util.h"
#include "third_party/blink/renderer/platform/instrumentation/tracing/trace_event.h"
#include "third_party/skia/include/effects/SkColorMatrix.h"
#include "third_party/skia/modules/skcms/skcms.h"

namespace blink {
namespace {
wgpu::ExternalTextureRotation FromVideoRotation(media::VideoRotation rotation) { … }

// TODO(crbug.com/40227105): Support HDR color space and color range in
// generated wgsl shader to enable all color space for zero-copy path.
bool DstColorSpaceSupportedByZeroCopy(
    PredefinedColorSpace dst_predefined_color_space) { … }
}  // namespace

std::array<float, 12> GetYUVToRGBMatrix(gfx::ColorSpace color_space,
                                        size_t bit_depth) { … }

ColorSpaceConversionConstants GetColorSpaceConversionConstants(
    gfx::ColorSpace src_color_space,
    gfx::ColorSpace dst_color_space) { … }

bool IsSameGamutAndGamma(gfx::ColorSpace src_color_space,
                         gfx::ColorSpace dst_color_space) { … }

ExternalTextureSource GetExternalTextureSourceFromVideoElement(
    HTMLVideoElement* video,
    ExceptionState& exception_state) { … }

ExternalTextureSource GetExternalTextureSourceFromVideoFrame(
    VideoFrame* frame,
    ExceptionState& exception_state) { … }

ExternalTexture CreateExternalTexture(
    GPUDevice* device,
    PredefinedColorSpace dst_predefined_color_space,
    scoped_refptr<media::VideoFrame> media_video_frame,
    media::PaintCanvasVideoRenderer* video_renderer) { … }

}  // namespace blink
chromium/third_party/blink/renderer/modules/webgpu/external_texture_helper.cc
