You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
125 lines
4.3 KiB
125 lines
4.3 KiB
/*
|
|
* Copyright 2020 Google LLC
|
|
*
|
|
* Use of this source code is governed by a BSD-style license that can be
|
|
* found in the LICENSE file.
|
|
*/
|
|
|
|
#ifndef GrYUVABackendTextures_DEFINED
|
|
#define GrYUVABackendTextures_DEFINED
|
|
|
|
#include "include/core/SkYUVAInfo.h"
|
|
#include "include/gpu/GrBackendSurface.h"
|
|
|
|
#include <tuple>
|
|
|
|
/**
|
|
* A description of a set GrBackendTextures that hold the planar data described by a SkYUVAInfo.
|
|
*/
|
|
class SK_API GrYUVABackendTextureInfo {
|
|
public:
|
|
static constexpr auto kMaxPlanes = SkYUVAInfo::kMaxPlanes;
|
|
|
|
/** Default GrYUVABackendTextureInfo is invalid. */
|
|
GrYUVABackendTextureInfo() = default;
|
|
|
|
/**
|
|
* Initializes a GrYUVABackendTextureInfo to describe a set of textures that can store the
|
|
* planes indicated by the SkYUVAInfo. The texture dimensions are taken from the SkYUVAInfo's
|
|
* plane dimensions. All the described textures share a common origin. The planar image this
|
|
* describes will be mip mapped if all the textures are individually mip mapped as indicated
|
|
* by GrMipmapped. This will produce an invalid result (return false from isValid()) if the
|
|
* passed formats' channels don't agree with SkYUVAInfo.
|
|
*/
|
|
GrYUVABackendTextureInfo(const SkYUVAInfo&,
|
|
const GrBackendFormat[kMaxPlanes],
|
|
GrMipmapped,
|
|
GrSurfaceOrigin);
|
|
|
|
GrYUVABackendTextureInfo(const GrYUVABackendTextureInfo&) = default;
|
|
|
|
GrYUVABackendTextureInfo& operator=(const GrYUVABackendTextureInfo&) = default;
|
|
|
|
bool operator==(const GrYUVABackendTextureInfo&) const;
|
|
bool operator!=(const GrYUVABackendTextureInfo& that) const { return !(*this == that); }
|
|
|
|
const SkYUVAInfo& yuvaInfo() const { return fYUVAInfo; }
|
|
|
|
SkYUVColorSpace yuvColorSpace() const { return fYUVAInfo.yuvColorSpace(); }
|
|
|
|
GrMipmapped mipmapped() const { return fMipmapped; }
|
|
|
|
GrSurfaceOrigin textureOrigin() const { return fTextureOrigin; }
|
|
|
|
/** The number of SkPixmap planes, 0 if this GrYUVABackendTextureInfo is invalid. */
|
|
int numPlanes() const { return fYUVAInfo.numPlanes(); }
|
|
|
|
/** Format of the ith plane, or invalid format if i >= numPlanes() */
|
|
const GrBackendFormat& planeFormat(int i) const { return fPlaneFormats[i]; }
|
|
|
|
/**
|
|
* Returns true if this has been configured with a valid SkYUVAInfo with compatible texture
|
|
* formats.
|
|
*/
|
|
bool isValid() const { return fYUVAInfo.isValid(); }
|
|
|
|
/**
|
|
* Computes a YUVALocations representation of the planar layout. The result is guaranteed to be
|
|
* valid if this->isValid().
|
|
*/
|
|
SkYUVAInfo::YUVALocations toYUVALocations() const;
|
|
|
|
private:
|
|
SkYUVAInfo fYUVAInfo;
|
|
GrBackendFormat fPlaneFormats[kMaxPlanes];
|
|
GrMipmapped fMipmapped = GrMipmapped::kNo;
|
|
GrSurfaceOrigin fTextureOrigin = kTopLeft_GrSurfaceOrigin;
|
|
};
|
|
|
|
/**
|
|
* A set of GrBackendTextures that hold the planar data for an image described a SkYUVAInfo.
|
|
*/
|
|
class SK_API GrYUVABackendTextures {
|
|
public:
|
|
GrYUVABackendTextures() = default;
|
|
GrYUVABackendTextures(const GrYUVABackendTextures&) = delete;
|
|
GrYUVABackendTextures(GrYUVABackendTextures&&) = default;
|
|
|
|
GrYUVABackendTextures& operator=(const GrYUVABackendTextures&) = delete;
|
|
GrYUVABackendTextures& operator=(GrYUVABackendTextures&&) = default;
|
|
|
|
GrYUVABackendTextures(const SkYUVAInfo&,
|
|
const GrBackendTexture[SkYUVAInfo::kMaxPlanes],
|
|
GrSurfaceOrigin textureOrigin);
|
|
|
|
const std::array<GrBackendTexture, SkYUVAInfo::kMaxPlanes>& textures() const {
|
|
return fTextures;
|
|
}
|
|
|
|
GrBackendTexture texture(int i) const {
|
|
SkASSERT(i >= 0 && i < SkYUVAInfo::kMaxPlanes);
|
|
return fTextures[static_cast<size_t>(i)];
|
|
}
|
|
|
|
const SkYUVAInfo& yuvaInfo() const { return fYUVAInfo; }
|
|
|
|
int numPlanes() const { return fYUVAInfo.numPlanes(); }
|
|
|
|
GrSurfaceOrigin textureOrigin() const { return fTextureOrigin; }
|
|
|
|
bool isValid() const { return fYUVAInfo.isValid(); }
|
|
|
|
/**
|
|
* Computes a YUVALocations representation of the planar layout. The result is guaranteed to be
|
|
* valid if this->isValid().
|
|
*/
|
|
SkYUVAInfo::YUVALocations toYUVALocations() const;
|
|
|
|
private:
|
|
SkYUVAInfo fYUVAInfo;
|
|
std::array<GrBackendTexture, SkYUVAInfo::kMaxPlanes> fTextures;
|
|
GrSurfaceOrigin fTextureOrigin = kTopLeft_GrSurfaceOrigin;
|
|
};
|
|
|
|
#endif
|