GrBackendUtils.h File Reference

#include <cstddef>

Go to the source code of this file.

Functions
SkTextureCompressionType	GrBackendFormatToCompressionType (const GrBackendFormat &format)
size_t	GrBackendFormatBytesPerBlock (const GrBackendFormat &format)
size_t	GrBackendFormatBytesPerPixel (const GrBackendFormat &format)
int	GrBackendFormatStencilBits (const GrBackendFormat &format)

Function Documentation

GrBackendFormatBytesPerBlock()

size_t GrBackendFormatBytesPerBlock

(

const GrBackendFormat &

format

)

Definition at line 52 of file GrBackendUtils.cpp.

                                                                   {
    switch (format.backend()) {
        case GrBackendApi::kOpenGL:
        case GrBackendApi::kVulkan:
        case GrBackendApi::kMetal:
            return GrBackendSurfacePriv::GetBackendData(format)->bytesPerBlock();
        case GrBackendApi::kDirect3D: {
#ifdef SK_DIRECT3D
            DXGI_FORMAT dxgiFormat;
            SkAssertResult(format.asDxgiFormat(&dxgiFormat));
            return GrDxgiFormatBytesPerBlock(dxgiFormat);
#else
            break;
#endif
        }
        case GrBackendApi::kMock: {
            SkTextureCompressionType compression = format.asMockCompressionType();
            if (compression != SkTextureCompressionType::kNone) {
                return skgpu::CompressedRowBytes(compression, 1);
            } else if (format.isMockStencilFormat()) {
                static constexpr int kMockStencilSize = 4;
                return kMockStencilSize;
            }
            return GrColorTypeBytesPerPixel(format.asMockColorType());
        }
        case GrBackendApi::kUnsupported: {
            break;
        }
    }
    return 0;
}

GrBackendFormatBytesPerPixel()

size_t GrBackendFormatBytesPerPixel

(

const GrBackendFormat &

format

)

Definition at line 84 of file GrBackendUtils.cpp.

                                                                   {
    if (GrBackendFormatToCompressionType(format) != SkTextureCompressionType::kNone) {
        return 0;
    }
    return GrBackendFormatBytesPerBlock(format);
}

GrBackendFormatStencilBits()

int GrBackendFormatStencilBits

(

const GrBackendFormat &

format

)

Definition at line 91 of file GrBackendUtils.cpp.

                                                              {
    switch (format.backend()) {
        case GrBackendApi::kOpenGL:
        case GrBackendApi::kVulkan:
        case GrBackendApi::kMetal:
            return GrBackendSurfacePriv::GetBackendData(format)->stencilBits();
        case GrBackendApi::kDirect3D: {
#ifdef SK_DIRECT3D
            DXGI_FORMAT dxgiFormat;
            SkAssertResult(format.asDxgiFormat(&dxgiFormat));
            return GrDxgiFormatStencilBits(dxgiFormat);
#else
            break;
#endif
        }
        case GrBackendApi::kMock: {
            if (format.isMockStencilFormat()) {
                static constexpr int kMockStencilBits = 8;
                return kMockStencilBits;
            }
            break;
        }
        case GrBackendApi::kUnsupported: {
            break;
        }
    }
    return 0;
}

GrBackendFormatToCompressionType()

SkTextureCompressionType GrBackendFormatToCompressionType

(

const GrBackendFormat &

format

)

Definition at line 22 of file GrBackendUtils.cpp.

                                                                                         {
    switch (format.backend()) {
        case GrBackendApi::kOpenGL:
        case GrBackendApi::kVulkan:
        case GrBackendApi::kMetal:
            return GrBackendSurfacePriv::GetBackendData(format)->compressionType();
        case GrBackendApi::kDirect3D: {
#ifdef SK_DIRECT3D
            DXGI_FORMAT dxgiFormat;
            SkAssertResult(format.asDxgiFormat(&dxgiFormat));
            switch (dxgiFormat) {
                case DXGI_FORMAT_BC1_UNORM:
                    return SkTextureCompressionType::kBC1_RGBA8_UNORM;
                default:
                    return SkTextureCompressionType::kNone;
            }
#else
            break;
#endif
        }
        case GrBackendApi::kMock: {
            return format.asMockCompressionType();
        }
        case GrBackendApi::kUnsupported: {
            break;
        }
    }
    return SkTextureCompressionType::kNone;
}