diff options
Diffstat (limited to 'gfx/skia/skia/include/private/gpu/ganesh/GrTypesPriv.h')
| -rw-r--r-- | gfx/skia/skia/include/private/gpu/ganesh/GrTypesPriv.h | 1042 |
1 files changed, 1042 insertions, 0 deletions
diff --git a/gfx/skia/skia/include/private/gpu/ganesh/GrTypesPriv.h b/gfx/skia/skia/include/private/gpu/ganesh/GrTypesPriv.h new file mode 100644 index 0000000000..fb8688de0d --- /dev/null +++ b/gfx/skia/skia/include/private/gpu/ganesh/GrTypesPriv.h @@ -0,0 +1,1042 @@ +/* + * Copyright 2013 Google Inc. + * + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +#ifndef GrTypesPriv_DEFINED +#define GrTypesPriv_DEFINED + +#include "include/core/SkColor.h" +#include "include/core/SkImageInfo.h" +#include "include/core/SkPath.h" +#include "include/core/SkRefCnt.h" +#include "include/core/SkTextureCompressionType.h" +#include "include/gpu/GrTypes.h" +#include "include/private/base/SkMacros.h" +#include "include/private/base/SkTypeTraits.h" + +#include <chrono> +#include <functional> + +class GrBackendFormat; +class GrCaps; +class GrSurfaceProxy; + +#ifdef MOZ_SKIA +#include "mozilla/TimeStamp.h" + +struct GrStdSteadyClock +{ + typedef mozilla::TimeStamp time_point; + + static time_point now() { + return mozilla::TimeStamp::NowLoRes(); + } +}; + +static inline GrStdSteadyClock::time_point +operator-(GrStdSteadyClock::time_point t, std::chrono::milliseconds ms) { + return t - mozilla::TimeDuration::FromMilliseconds(ms.count()); +} + +#else + +// The old libstdc++ uses the draft name "monotonic_clock" rather than "steady_clock". This might +// not actually be monotonic, depending on how libstdc++ was built. However, this is only currently +// used for idle resource purging so it shouldn't cause a correctness problem. +#if defined(__GLIBCXX__) && (__GLIBCXX__ < 20130000) +using GrStdSteadyClock = std::chrono::monotonic_clock; +#else +using GrStdSteadyClock = std::chrono::steady_clock; +#endif + +#endif + +/** + * divide, rounding up + */ + +static inline constexpr size_t GrSizeDivRoundUp(size_t x, size_t y) { return (x + (y - 1)) / y; } + +/** + * Geometric primitives used for drawing. + */ +enum class GrPrimitiveType : uint8_t { + kTriangles, + kTriangleStrip, + kPoints, + kLines, // 1 pix wide only + kLineStrip, // 1 pix wide only +}; +static constexpr int kNumGrPrimitiveTypes = (int)GrPrimitiveType::kLineStrip + 1; + +static constexpr bool GrIsPrimTypeLines(GrPrimitiveType type) { + return GrPrimitiveType::kLines == type || GrPrimitiveType::kLineStrip == type; +} + +enum class GrPrimitiveRestart : bool { + kNo = false, + kYes = true +}; + +/** + * Should a created surface be texturable? + */ +enum class GrTexturable : bool { + kNo = false, + kYes = true +}; + +// A DDL recorder has its own proxy provider and proxy cache. This enum indicates if +// a given proxy provider is one of these special ones. +enum class GrDDLProvider : bool { + kNo = false, + kYes = true +}; + +/** Ownership rules for external GPU resources imported into Skia. */ +enum GrWrapOwnership { + /** Skia will assume the client will keep the resource alive and Skia will not free it. */ + kBorrow_GrWrapOwnership, + + /** Skia will assume ownership of the resource and free it. */ + kAdopt_GrWrapOwnership, +}; + +enum class GrWrapCacheable : bool { + /** + * The wrapped resource will be removed from the cache as soon as it becomes purgeable. It may + * still be assigned and found by a unique key, but the presence of the key will not be used to + * keep the resource alive when it has no references. + */ + kNo = false, + /** + * The wrapped resource is allowed to remain in the GrResourceCache when it has no references + * but has a unique key. Such resources should only be given unique keys when it is known that + * the key will eventually be removed from the resource or invalidated via the message bus. + */ + kYes = true +}; + +enum class GrBudgetedType : uint8_t { + /** The resource is budgeted and is subject to purging under budget pressure. */ + kBudgeted, + /** + * The resource is unbudgeted and is purged as soon as it has no refs regardless of whether + * it has a unique or scratch key. + */ + kUnbudgetedUncacheable, + /** + * The resource is unbudgeted and is allowed to remain in the cache with no refs if it + * has a unique key. Scratch keys are ignored. + */ + kUnbudgetedCacheable, +}; + +enum class GrScissorTest : bool { + kDisabled = false, + kEnabled = true +}; + +/* + * Used to say whether texture is backed by memory. + */ +enum class GrMemoryless : bool { + /** + * The texture will be allocated normally and will affect memory budgets. + */ + kNo = false, + /** + * The texture will be not use GPU memory and will not affect memory budgets. + */ + kYes = true +}; + +struct GrMipLevel { + const void* fPixels = nullptr; + size_t fRowBytes = 0; + // This may be used to keep fPixels from being freed while a GrMipLevel exists. + sk_sp<SkData> fOptionalStorage; + + static_assert(::sk_is_trivially_relocatable<decltype(fPixels)>::value); + static_assert(::sk_is_trivially_relocatable<decltype(fOptionalStorage)>::value); + + using sk_is_trivially_relocatable = std::true_type; +}; + +enum class GrSemaphoreWrapType { + kWillSignal, + kWillWait, +}; + +/** + * This enum is used to specify the load operation to be used when an OpsTask/GrOpsRenderPass + * begins execution. + */ +enum class GrLoadOp { + kLoad, + kClear, + kDiscard, +}; + +/** + * This enum is used to specify the store operation to be used when an OpsTask/GrOpsRenderPass + * ends execution. + */ +enum class GrStoreOp { + kStore, + kDiscard, +}; + +/** + * Used to control antialiasing in draw calls. + */ +enum class GrAA : bool { + kNo = false, + kYes = true +}; + +enum class GrFillRule : bool { + kNonzero, + kEvenOdd +}; + +inline GrFillRule GrFillRuleForPathFillType(SkPathFillType fillType) { + switch (fillType) { + case SkPathFillType::kWinding: + case SkPathFillType::kInverseWinding: + return GrFillRule::kNonzero; + case SkPathFillType::kEvenOdd: + case SkPathFillType::kInverseEvenOdd: + return GrFillRule::kEvenOdd; + } + SkUNREACHABLE; +} + +inline GrFillRule GrFillRuleForSkPath(const SkPath& path) { + return GrFillRuleForPathFillType(path.getFillType()); +} + +/** This enum indicates the type of antialiasing to be performed. */ +enum class GrAAType : unsigned { + /** No antialiasing */ + kNone, + /** Use fragment shader code to blend with a fractional pixel coverage. */ + kCoverage, + /** Use normal MSAA. */ + kMSAA, + + kLast = kMSAA +}; +static const int kGrAATypeCount = static_cast<int>(GrAAType::kLast) + 1; + +static constexpr bool GrAATypeIsHW(GrAAType type) { + switch (type) { + case GrAAType::kNone: + return false; + case GrAAType::kCoverage: + return false; + case GrAAType::kMSAA: + return true; + } + SkUNREACHABLE; +} + +/** + * Some pixel configs are inherently clamped to [0,1], some are allowed to go outside that range, + * and some are FP but manually clamped in the XP. + */ +enum class GrClampType { + kAuto, // Normalized, fixed-point configs + kManual, // Clamped FP configs + kNone, // Normal (unclamped) FP configs +}; + +/** + * A number of rectangle/quadrilateral drawing APIs can control anti-aliasing on a per edge basis. + * These masks specify which edges are AA'ed. The intent for this is to support tiling with seamless + * boundaries, where the inner edges are non-AA and the outer edges are AA. Regular rectangle draws + * simply use kAll or kNone depending on if they want anti-aliasing or not. + * + * In APIs that support per-edge AA, GrQuadAAFlags is the only AA-control parameter that is + * provided (compared to the typical GrAA parameter). kNone is equivalent to GrAA::kNo, and any + * other set of edge flags would require GrAA::kYes (with rendering output dependent on how that + * maps to GrAAType for a given SurfaceDrawContext). + * + * These values are identical to SkCanvas::QuadAAFlags. + */ +enum class GrQuadAAFlags { + kLeft = 0b0001, + kTop = 0b0010, + kRight = 0b0100, + kBottom = 0b1000, + + kNone = 0b0000, + kAll = 0b1111, +}; + +GR_MAKE_BITFIELD_CLASS_OPS(GrQuadAAFlags) + +static inline GrQuadAAFlags SkToGrQuadAAFlags(unsigned flags) { + return static_cast<GrQuadAAFlags>(flags); +} + +/** + * The type of texture. Backends other than GL currently only use the 2D value but the type must + * still be known at the API-neutral layer as it used to determine whether MIP maps, renderability, + * and sampling parameters are legal for proxies that will be instantiated with wrapped textures. + */ +enum class GrTextureType { + kNone, + k2D, + /* Rectangle uses unnormalized texture coordinates. */ + kRectangle, + kExternal +}; + +enum GrShaderType { + kVertex_GrShaderType, + kFragment_GrShaderType, + + kLastkFragment_GrShaderType = kFragment_GrShaderType +}; +static const int kGrShaderTypeCount = kLastkFragment_GrShaderType + 1; + +enum GrShaderFlags { + kNone_GrShaderFlags = 0, + kVertex_GrShaderFlag = 1 << 0, + kFragment_GrShaderFlag = 1 << 1 +}; +SK_MAKE_BITFIELD_OPS(GrShaderFlags) + +/** Rectangle and external textures only support the clamp wrap mode and do not support + * MIP maps. + */ +static inline bool GrTextureTypeHasRestrictedSampling(GrTextureType type) { + switch (type) { + case GrTextureType::k2D: + return false; + case GrTextureType::kRectangle: + return true; + case GrTextureType::kExternal: + return true; + default: + SK_ABORT("Unexpected texture type"); + } +} + +////////////////////////////////////////////////////////////////////////////// + +/** + * Types used to describe format of vertices in arrays. + */ +enum GrVertexAttribType { + kFloat_GrVertexAttribType = 0, + kFloat2_GrVertexAttribType, + kFloat3_GrVertexAttribType, + kFloat4_GrVertexAttribType, + kHalf_GrVertexAttribType, + kHalf2_GrVertexAttribType, + kHalf4_GrVertexAttribType, + + kInt2_GrVertexAttribType, // vector of 2 32-bit ints + kInt3_GrVertexAttribType, // vector of 3 32-bit ints + kInt4_GrVertexAttribType, // vector of 4 32-bit ints + + + kByte_GrVertexAttribType, // signed byte + kByte2_GrVertexAttribType, // vector of 2 8-bit signed bytes + kByte4_GrVertexAttribType, // vector of 4 8-bit signed bytes + kUByte_GrVertexAttribType, // unsigned byte + kUByte2_GrVertexAttribType, // vector of 2 8-bit unsigned bytes + kUByte4_GrVertexAttribType, // vector of 4 8-bit unsigned bytes + + kUByte_norm_GrVertexAttribType, // unsigned byte, e.g. coverage, 0 -> 0.0f, 255 -> 1.0f. + kUByte4_norm_GrVertexAttribType, // vector of 4 unsigned bytes, e.g. colors, 0 -> 0.0f, + // 255 -> 1.0f. + + kShort2_GrVertexAttribType, // vector of 2 16-bit shorts. + kShort4_GrVertexAttribType, // vector of 4 16-bit shorts. + + kUShort2_GrVertexAttribType, // vector of 2 unsigned shorts. 0 -> 0, 65535 -> 65535. + kUShort2_norm_GrVertexAttribType, // vector of 2 unsigned shorts. 0 -> 0.0f, 65535 -> 1.0f. + + kInt_GrVertexAttribType, + kUInt_GrVertexAttribType, + + kUShort_norm_GrVertexAttribType, + + kUShort4_norm_GrVertexAttribType, // vector of 4 unsigned shorts. 0 -> 0.0f, 65535 -> 1.0f. + + kLast_GrVertexAttribType = kUShort4_norm_GrVertexAttribType +}; +static const int kGrVertexAttribTypeCount = kLast_GrVertexAttribType + 1; + +////////////////////////////////////////////////////////////////////////////// + +/** + * We have coverage effects that clip rendering to the edge of some geometric primitive. + * This enum specifies how that clipping is performed. Not all factories that take a + * GrClipEdgeType will succeed with all values and it is up to the caller to verify success. + */ +enum class GrClipEdgeType { + kFillBW, + kFillAA, + kInverseFillBW, + kInverseFillAA, + + kLast = kInverseFillAA +}; +static const int kGrClipEdgeTypeCnt = (int) GrClipEdgeType::kLast + 1; + +static constexpr bool GrClipEdgeTypeIsFill(const GrClipEdgeType edgeType) { + return (GrClipEdgeType::kFillAA == edgeType || GrClipEdgeType::kFillBW == edgeType); +} + +static constexpr bool GrClipEdgeTypeIsInverseFill(const GrClipEdgeType edgeType) { + return (GrClipEdgeType::kInverseFillAA == edgeType || + GrClipEdgeType::kInverseFillBW == edgeType); +} + +static constexpr bool GrClipEdgeTypeIsAA(const GrClipEdgeType edgeType) { + return (GrClipEdgeType::kFillBW != edgeType && + GrClipEdgeType::kInverseFillBW != edgeType); +} + +static inline GrClipEdgeType GrInvertClipEdgeType(const GrClipEdgeType edgeType) { + switch (edgeType) { + case GrClipEdgeType::kFillBW: + return GrClipEdgeType::kInverseFillBW; + case GrClipEdgeType::kFillAA: + return GrClipEdgeType::kInverseFillAA; + case GrClipEdgeType::kInverseFillBW: + return GrClipEdgeType::kFillBW; + case GrClipEdgeType::kInverseFillAA: + return GrClipEdgeType::kFillAA; + } + SkUNREACHABLE; +} + +/** + * Indicates the type of pending IO operations that can be recorded for gpu resources. + */ +enum GrIOType { + kRead_GrIOType, + kWrite_GrIOType, + kRW_GrIOType +}; + +/** + * Indicates the type of data that a GPU buffer will be used for. + */ +enum class GrGpuBufferType { + kVertex, + kIndex, + kDrawIndirect, + kXferCpuToGpu, + kXferGpuToCpu, + kUniform, +}; +static const constexpr int kGrGpuBufferTypeCount = static_cast<int>(GrGpuBufferType::kUniform) + 1; + +/** + * Provides a performance hint regarding the frequency at which a data store will be accessed. + */ +enum GrAccessPattern { + /** Data store will be respecified repeatedly and used many times. */ + kDynamic_GrAccessPattern, + /** Data store will be specified once and used many times. (Thus disqualified from caching.) */ + kStatic_GrAccessPattern, + /** Data store will be specified once and used at most a few times. (Also can't be cached.) */ + kStream_GrAccessPattern, + + kLast_GrAccessPattern = kStream_GrAccessPattern +}; + +// Flags shared between the GrSurface & GrSurfaceProxy class hierarchies +enum class GrInternalSurfaceFlags { + kNone = 0, + + // Texture-level + + // Means the pixels in the texture are read-only. Cannot also be a GrRenderTarget[Proxy]. + kReadOnly = 1 << 0, + + // RT-level + + // This flag is for use with GL only. It tells us that the internal render target wraps FBO 0. + kGLRTFBOIDIs0 = 1 << 1, + + // This means the render target is multisampled, and internally holds a non-msaa texture for + // resolving into. The render target resolves itself by blitting into this internal texture. + // (asTexture() might or might not return the internal texture, but if it does, we always + // resolve the render target before accessing this texture's data.) + kRequiresManualMSAAResolve = 1 << 2, + + // This means the pixels in the render target are write-only. This is used for Dawn and Metal + // swap chain targets which can be rendered to, but not read or copied. + kFramebufferOnly = 1 << 3, + + // This is a Vulkan only flag. If set the surface can be used as an input attachment in a + // shader. This is used for doing in shader blending where we want to sample from the same + // image we are drawing to. + kVkRTSupportsInputAttachment = 1 << 4, +}; + +GR_MAKE_BITFIELD_CLASS_OPS(GrInternalSurfaceFlags) + +// 'GR_MAKE_BITFIELD_CLASS_OPS' defines the & operator on GrInternalSurfaceFlags to return bool. +// We want to find the bitwise & with these masks, so we declare them as ints. +constexpr static int kGrInternalTextureFlagsMask = static_cast<int>( + GrInternalSurfaceFlags::kReadOnly); + +// We don't include kVkRTSupportsInputAttachment in this mask since we check it manually. We don't +// require that both the surface and proxy have matching values for this flag. Instead we require +// if the proxy has it set then the surface must also have it set. All other flags listed here must +// match on the proxy and surface. +// TODO: Add back kFramebufferOnly flag here once we update SkSurfaceCharacterization to take it +// as a flag. skbug.com/10672 +constexpr static int kGrInternalRenderTargetFlagsMask = static_cast<int>( + GrInternalSurfaceFlags::kGLRTFBOIDIs0 | + GrInternalSurfaceFlags::kRequiresManualMSAAResolve/* | + GrInternalSurfaceFlags::kFramebufferOnly*/); + +constexpr static int kGrInternalTextureRenderTargetFlagsMask = + kGrInternalTextureFlagsMask | kGrInternalRenderTargetFlagsMask; + +#ifdef SK_DEBUG +// Takes a pointer to a GrCaps, and will suppress prints if required +#define GrCapsDebugf(caps, ...) if (!(caps)->suppressPrints()) SkDebugf(__VA_ARGS__) +#else +#define GrCapsDebugf(caps, ...) do {} while (0) +#endif + +/** + * Specifies if the holder owns the backend, OpenGL or Vulkan, object. + */ +enum class GrBackendObjectOwnership : bool { + /** Holder does not destroy the backend object. */ + kBorrowed = false, + /** Holder destroys the backend object. */ + kOwned = true +}; + +/* + * Object for CPU-GPU synchronization + */ +typedef uint64_t GrFence; + +/** + * Used to include or exclude specific GPU path renderers for testing purposes. + */ +enum class GpuPathRenderers { + kNone = 0, // Always use software masks and/or DefaultPathRenderer. + kDashLine = 1 << 0, + kAtlas = 1 << 1, + kTessellation = 1 << 2, + kCoverageCounting = 1 << 3, + kAAHairline = 1 << 4, + kAAConvex = 1 << 5, + kAALinearizing = 1 << 6, + kSmall = 1 << 7, + kTriangulating = 1 << 8, + kDefault = ((1 << 9) - 1) // All path renderers. +}; + +/** + * Used to describe the current state of Mips on a GrTexture + */ +enum class GrMipmapStatus { + kNotAllocated, // Mips have not been allocated + kDirty, // Mips are allocated but the full mip tree does not have valid data + kValid, // All levels fully allocated and have valid data in them +}; + +GR_MAKE_BITFIELD_CLASS_OPS(GpuPathRenderers) + +/** + * Like SkColorType this describes a layout of pixel data in CPU memory. It specifies the channels, + * their type, and width. This exists so that the GPU backend can have private types that have no + * analog in the public facing SkColorType enum and omit types not implemented in the GPU backend. + * It does not refer to a texture format and the mapping to texture formats may be many-to-many. + * It does not specify the sRGB encoding of the stored values. The components are listed in order of + * where they appear in memory. In other words the first component listed is in the low bits and + * the last component in the high bits. + */ +enum class GrColorType { + kUnknown, + kAlpha_8, + kBGR_565, + kABGR_4444, // This name differs from SkColorType. kARGB_4444_SkColorType is misnamed. + kRGBA_8888, + kRGBA_8888_SRGB, + kRGB_888x, + kRG_88, + kBGRA_8888, + kRGBA_1010102, + kBGRA_1010102, + kGray_8, + kGrayAlpha_88, + kAlpha_F16, + kRGBA_F16, + kRGBA_F16_Clamped, + kRGBA_F32, + + kAlpha_16, + kRG_1616, + kRG_F16, + kRGBA_16161616, + + // Unusual types that come up after reading back in cases where we are reassigning the meaning + // of a texture format's channels to use for a particular color format but have to read back the + // data to a full RGBA quadruple. (e.g. using a R8 texture format as A8 color type but the API + // only supports reading to RGBA8.) None of these have SkColorType equivalents. + kAlpha_8xxx, + kAlpha_F32xxx, + kGray_8xxx, + kR_8xxx, + + // Types used to initialize backend textures. + kRGB_888, + kR_8, + kR_16, + kR_F16, + kGray_F16, + kBGRA_4444, + kARGB_4444, + + kLast = kARGB_4444 +}; + +static const int kGrColorTypeCnt = static_cast<int>(GrColorType::kLast) + 1; + +static constexpr SkColorType GrColorTypeToSkColorType(GrColorType ct) { + switch (ct) { + case GrColorType::kUnknown: return kUnknown_SkColorType; + case GrColorType::kAlpha_8: return kAlpha_8_SkColorType; + case GrColorType::kBGR_565: return kRGB_565_SkColorType; + case GrColorType::kABGR_4444: return kARGB_4444_SkColorType; + case GrColorType::kRGBA_8888: return kRGBA_8888_SkColorType; + case GrColorType::kRGBA_8888_SRGB: return kSRGBA_8888_SkColorType; + case GrColorType::kRGB_888x: return kRGB_888x_SkColorType; + case GrColorType::kRG_88: return kR8G8_unorm_SkColorType; + case GrColorType::kBGRA_8888: return kBGRA_8888_SkColorType; + case GrColorType::kRGBA_1010102: return kRGBA_1010102_SkColorType; + case GrColorType::kBGRA_1010102: return kBGRA_1010102_SkColorType; + case GrColorType::kGray_8: return kGray_8_SkColorType; + case GrColorType::kGrayAlpha_88: return kUnknown_SkColorType; + case GrColorType::kAlpha_F16: return kA16_float_SkColorType; + case GrColorType::kRGBA_F16: return kRGBA_F16_SkColorType; + case GrColorType::kRGBA_F16_Clamped: return kRGBA_F16Norm_SkColorType; + case GrColorType::kRGBA_F32: return kRGBA_F32_SkColorType; + case GrColorType::kAlpha_8xxx: return kUnknown_SkColorType; + case GrColorType::kAlpha_F32xxx: return kUnknown_SkColorType; + case GrColorType::kGray_8xxx: return kUnknown_SkColorType; + case GrColorType::kR_8xxx: return kUnknown_SkColorType; + case GrColorType::kAlpha_16: return kA16_unorm_SkColorType; + case GrColorType::kRG_1616: return kR16G16_unorm_SkColorType; + case GrColorType::kRGBA_16161616: return kR16G16B16A16_unorm_SkColorType; + case GrColorType::kRG_F16: return kR16G16_float_SkColorType; + case GrColorType::kRGB_888: return kUnknown_SkColorType; + case GrColorType::kR_8: return kR8_unorm_SkColorType; + case GrColorType::kR_16: return kUnknown_SkColorType; + case GrColorType::kR_F16: return kUnknown_SkColorType; + case GrColorType::kGray_F16: return kUnknown_SkColorType; + case GrColorType::kARGB_4444: return kUnknown_SkColorType; + case GrColorType::kBGRA_4444: return kUnknown_SkColorType; + } + SkUNREACHABLE; +} + +static constexpr GrColorType SkColorTypeToGrColorType(SkColorType ct) { + switch (ct) { + case kUnknown_SkColorType: return GrColorType::kUnknown; + case kAlpha_8_SkColorType: return GrColorType::kAlpha_8; + case kRGB_565_SkColorType: return GrColorType::kBGR_565; + case kARGB_4444_SkColorType: return GrColorType::kABGR_4444; + case kRGBA_8888_SkColorType: return GrColorType::kRGBA_8888; + case kSRGBA_8888_SkColorType: return GrColorType::kRGBA_8888_SRGB; + case kRGB_888x_SkColorType: return GrColorType::kRGB_888x; + case kBGRA_8888_SkColorType: return GrColorType::kBGRA_8888; + case kGray_8_SkColorType: return GrColorType::kGray_8; + case kRGBA_F16Norm_SkColorType: return GrColorType::kRGBA_F16_Clamped; + case kRGBA_F16_SkColorType: return GrColorType::kRGBA_F16; + case kRGBA_1010102_SkColorType: return GrColorType::kRGBA_1010102; + case kRGB_101010x_SkColorType: return GrColorType::kUnknown; + case kBGRA_1010102_SkColorType: return GrColorType::kBGRA_1010102; + case kBGR_101010x_SkColorType: return GrColorType::kUnknown; + case kBGR_101010x_XR_SkColorType: return GrColorType::kUnknown; + case kRGBA_F32_SkColorType: return GrColorType::kRGBA_F32; + case kR8G8_unorm_SkColorType: return GrColorType::kRG_88; + case kA16_unorm_SkColorType: return GrColorType::kAlpha_16; + case kR16G16_unorm_SkColorType: return GrColorType::kRG_1616; + case kA16_float_SkColorType: return GrColorType::kAlpha_F16; + case kR16G16_float_SkColorType: return GrColorType::kRG_F16; + case kR16G16B16A16_unorm_SkColorType: return GrColorType::kRGBA_16161616; + case kR8_unorm_SkColorType: return GrColorType::kR_8; + } + SkUNREACHABLE; +} + +static constexpr uint32_t GrColorTypeChannelFlags(GrColorType ct) { + switch (ct) { + case GrColorType::kUnknown: return 0; + case GrColorType::kAlpha_8: return kAlpha_SkColorChannelFlag; + case GrColorType::kBGR_565: return kRGB_SkColorChannelFlags; + case GrColorType::kABGR_4444: return kRGBA_SkColorChannelFlags; + case GrColorType::kRGBA_8888: return kRGBA_SkColorChannelFlags; + case GrColorType::kRGBA_8888_SRGB: return kRGBA_SkColorChannelFlags; + case GrColorType::kRGB_888x: return kRGB_SkColorChannelFlags; + case GrColorType::kRG_88: return kRG_SkColorChannelFlags; + case GrColorType::kBGRA_8888: return kRGBA_SkColorChannelFlags; + case GrColorType::kRGBA_1010102: return kRGBA_SkColorChannelFlags; + case GrColorType::kBGRA_1010102: return kRGBA_SkColorChannelFlags; + case GrColorType::kGray_8: return kGray_SkColorChannelFlag; + case GrColorType::kGrayAlpha_88: return kGrayAlpha_SkColorChannelFlags; + case GrColorType::kAlpha_F16: return kAlpha_SkColorChannelFlag; + case GrColorType::kRGBA_F16: return kRGBA_SkColorChannelFlags; + case GrColorType::kRGBA_F16_Clamped: return kRGBA_SkColorChannelFlags; + case GrColorType::kRGBA_F32: return kRGBA_SkColorChannelFlags; + case GrColorType::kAlpha_8xxx: return kAlpha_SkColorChannelFlag; + case GrColorType::kAlpha_F32xxx: return kAlpha_SkColorChannelFlag; + case GrColorType::kGray_8xxx: return kGray_SkColorChannelFlag; + case GrColorType::kR_8xxx: return kRed_SkColorChannelFlag; + case GrColorType::kAlpha_16: return kAlpha_SkColorChannelFlag; + case GrColorType::kRG_1616: return kRG_SkColorChannelFlags; + case GrColorType::kRGBA_16161616: return kRGBA_SkColorChannelFlags; + case GrColorType::kRG_F16: return kRG_SkColorChannelFlags; + case GrColorType::kRGB_888: return kRGB_SkColorChannelFlags; + case GrColorType::kR_8: return kRed_SkColorChannelFlag; + case GrColorType::kR_16: return kRed_SkColorChannelFlag; + case GrColorType::kR_F16: return kRed_SkColorChannelFlag; + case GrColorType::kGray_F16: return kGray_SkColorChannelFlag; + case GrColorType::kARGB_4444: return kRGBA_SkColorChannelFlags; + case GrColorType::kBGRA_4444: return kRGBA_SkColorChannelFlags; + } + SkUNREACHABLE; +} + +/** + * Describes the encoding of channel data in a GrColorType. + */ +enum class GrColorTypeEncoding { + kUnorm, + kSRGBUnorm, + // kSnorm, + kFloat, + // kSint + // kUint +}; + +/** + * Describes a GrColorType by how many bits are used for each color component and how they are + * encoded. Currently all the non-zero channels share a single GrColorTypeEncoding. This could be + * expanded to store separate encodings and to indicate which bits belong to which components. + */ +class GrColorFormatDesc { +public: + static constexpr GrColorFormatDesc MakeRGBA(int rgba, GrColorTypeEncoding e) { + return {rgba, rgba, rgba, rgba, 0, e}; + } + + static constexpr GrColorFormatDesc MakeRGBA(int rgb, int a, GrColorTypeEncoding e) { + return {rgb, rgb, rgb, a, 0, e}; + } + + static constexpr GrColorFormatDesc MakeRGB(int rgb, GrColorTypeEncoding e) { + return {rgb, rgb, rgb, 0, 0, e}; + } + + static constexpr GrColorFormatDesc MakeRGB(int r, int g, int b, GrColorTypeEncoding e) { + return {r, g, b, 0, 0, e}; + } + + static constexpr GrColorFormatDesc MakeAlpha(int a, GrColorTypeEncoding e) { + return {0, 0, 0, a, 0, e}; + } + + static constexpr GrColorFormatDesc MakeR(int r, GrColorTypeEncoding e) { + return {r, 0, 0, 0, 0, e}; + } + + static constexpr GrColorFormatDesc MakeRG(int rg, GrColorTypeEncoding e) { + return {rg, rg, 0, 0, 0, e}; + } + + static constexpr GrColorFormatDesc MakeGray(int grayBits, GrColorTypeEncoding e) { + return {0, 0, 0, 0, grayBits, e}; + } + + static constexpr GrColorFormatDesc MakeGrayAlpha(int grayAlpha, GrColorTypeEncoding e) { + return {0, 0, 0, 0, grayAlpha, e}; + } + + static constexpr GrColorFormatDesc MakeInvalid() { return {}; } + + constexpr int r() const { return fRBits; } + constexpr int g() const { return fGBits; } + constexpr int b() const { return fBBits; } + constexpr int a() const { return fABits; } + constexpr int operator[](int c) const { + switch (c) { + case 0: return this->r(); + case 1: return this->g(); + case 2: return this->b(); + case 3: return this->a(); + } + SkUNREACHABLE; + } + + constexpr int gray() const { return fGrayBits; } + + constexpr GrColorTypeEncoding encoding() const { return fEncoding; } + +private: + int fRBits = 0; + int fGBits = 0; + int fBBits = 0; + int fABits = 0; + int fGrayBits = 0; + GrColorTypeEncoding fEncoding = GrColorTypeEncoding::kUnorm; + + constexpr GrColorFormatDesc() = default; + + constexpr GrColorFormatDesc(int r, int g, int b, int a, int gray, GrColorTypeEncoding encoding) + : fRBits(r), fGBits(g), fBBits(b), fABits(a), fGrayBits(gray), fEncoding(encoding) { + SkASSERT(r >= 0 && g >= 0 && b >= 0 && a >= 0 && gray >= 0); + SkASSERT(!gray || (!r && !g && !b)); + SkASSERT(r || g || b || a || gray); + } +}; + +static constexpr GrColorFormatDesc GrGetColorTypeDesc(GrColorType ct) { + switch (ct) { + case GrColorType::kUnknown: + return GrColorFormatDesc::MakeInvalid(); + case GrColorType::kAlpha_8: + return GrColorFormatDesc::MakeAlpha(8, GrColorTypeEncoding::kUnorm); + case GrColorType::kBGR_565: + return GrColorFormatDesc::MakeRGB(5, 6, 5, GrColorTypeEncoding::kUnorm); + case GrColorType::kABGR_4444: + return GrColorFormatDesc::MakeRGBA(4, GrColorTypeEncoding::kUnorm); + case GrColorType::kRGBA_8888: + return GrColorFormatDesc::MakeRGBA(8, GrColorTypeEncoding::kUnorm); + case GrColorType::kRGBA_8888_SRGB: + return GrColorFormatDesc::MakeRGBA(8, GrColorTypeEncoding::kSRGBUnorm); + case GrColorType::kRGB_888x: + return GrColorFormatDesc::MakeRGB(8, GrColorTypeEncoding::kUnorm); + case GrColorType::kRG_88: + return GrColorFormatDesc::MakeRG(8, GrColorTypeEncoding::kUnorm); + case GrColorType::kBGRA_8888: + return GrColorFormatDesc::MakeRGBA(8, GrColorTypeEncoding::kUnorm); + case GrColorType::kRGBA_1010102: + return GrColorFormatDesc::MakeRGBA(10, 2, GrColorTypeEncoding::kUnorm); + case GrColorType::kBGRA_1010102: + return GrColorFormatDesc::MakeRGBA(10, 2, GrColorTypeEncoding::kUnorm); + case GrColorType::kGray_8: + return GrColorFormatDesc::MakeGray(8, GrColorTypeEncoding::kUnorm); + case GrColorType::kGrayAlpha_88: + return GrColorFormatDesc::MakeGrayAlpha(8, GrColorTypeEncoding::kUnorm); + case GrColorType::kAlpha_F16: + return GrColorFormatDesc::MakeAlpha(16, GrColorTypeEncoding::kFloat); + case GrColorType::kRGBA_F16: + return GrColorFormatDesc::MakeRGBA(16, GrColorTypeEncoding::kFloat); + case GrColorType::kRGBA_F16_Clamped: + return GrColorFormatDesc::MakeRGBA(16, GrColorTypeEncoding::kFloat); + case GrColorType::kRGBA_F32: + return GrColorFormatDesc::MakeRGBA(32, GrColorTypeEncoding::kFloat); + case GrColorType::kAlpha_8xxx: + return GrColorFormatDesc::MakeAlpha(8, GrColorTypeEncoding::kUnorm); + case GrColorType::kAlpha_F32xxx: + return GrColorFormatDesc::MakeAlpha(32, GrColorTypeEncoding::kFloat); + case GrColorType::kGray_8xxx: + return GrColorFormatDesc::MakeGray(8, GrColorTypeEncoding::kUnorm); + case GrColorType::kR_8xxx: + return GrColorFormatDesc::MakeR(8, GrColorTypeEncoding::kUnorm); + case GrColorType::kAlpha_16: + return GrColorFormatDesc::MakeAlpha(16, GrColorTypeEncoding::kUnorm); + case GrColorType::kRG_1616: + return GrColorFormatDesc::MakeRG(16, GrColorTypeEncoding::kUnorm); + case GrColorType::kRGBA_16161616: + return GrColorFormatDesc::MakeRGBA(16, GrColorTypeEncoding::kUnorm); + case GrColorType::kRG_F16: + return GrColorFormatDesc::MakeRG(16, GrColorTypeEncoding::kFloat); + case GrColorType::kRGB_888: + return GrColorFormatDesc::MakeRGB(8, GrColorTypeEncoding::kUnorm); + case GrColorType::kR_8: + return GrColorFormatDesc::MakeR(8, GrColorTypeEncoding::kUnorm); + case GrColorType::kR_16: + return GrColorFormatDesc::MakeR(16, GrColorTypeEncoding::kUnorm); + case GrColorType::kR_F16: + return GrColorFormatDesc::MakeR(16, GrColorTypeEncoding::kFloat); + case GrColorType::kGray_F16: + return GrColorFormatDesc::MakeGray(16, GrColorTypeEncoding::kFloat); + case GrColorType::kARGB_4444: + return GrColorFormatDesc::MakeRGBA(4, GrColorTypeEncoding::kUnorm); + case GrColorType::kBGRA_4444: + return GrColorFormatDesc::MakeRGBA(4, GrColorTypeEncoding::kUnorm); + } + SkUNREACHABLE; +} + +static constexpr GrClampType GrColorTypeClampType(GrColorType colorType) { + if (GrGetColorTypeDesc(colorType).encoding() == GrColorTypeEncoding::kUnorm || + GrGetColorTypeDesc(colorType).encoding() == GrColorTypeEncoding::kSRGBUnorm) { + return GrClampType::kAuto; + } + return GrColorType::kRGBA_F16_Clamped == colorType ? GrClampType::kManual : GrClampType::kNone; +} + +// Consider a color type "wider" than n if it has more than n bits for any its representable +// channels. +static constexpr bool GrColorTypeIsWiderThan(GrColorType colorType, int n) { + SkASSERT(n > 0); + auto desc = GrGetColorTypeDesc(colorType); + return (desc.r() && desc.r() > n )|| + (desc.g() && desc.g() > n) || + (desc.b() && desc.b() > n) || + (desc.a() && desc.a() > n) || + (desc.gray() && desc.gray() > n); +} + +static constexpr bool GrColorTypeIsAlphaOnly(GrColorType ct) { + return GrColorTypeChannelFlags(ct) == kAlpha_SkColorChannelFlag; +} + +static constexpr bool GrColorTypeHasAlpha(GrColorType ct) { + return GrColorTypeChannelFlags(ct) & kAlpha_SkColorChannelFlag; +} + +static constexpr size_t GrColorTypeBytesPerPixel(GrColorType ct) { + switch (ct) { + case GrColorType::kUnknown: return 0; + case GrColorType::kAlpha_8: return 1; + case GrColorType::kBGR_565: return 2; + case GrColorType::kABGR_4444: return 2; + case GrColorType::kRGBA_8888: return 4; + case GrColorType::kRGBA_8888_SRGB: return 4; + case GrColorType::kRGB_888x: return 4; + case GrColorType::kRG_88: return 2; + case GrColorType::kBGRA_8888: return 4; + case GrColorType::kRGBA_1010102: return 4; + case GrColorType::kBGRA_1010102: return 4; + case GrColorType::kGray_8: return 1; + case GrColorType::kGrayAlpha_88: return 2; + case GrColorType::kAlpha_F16: return 2; + case GrColorType::kRGBA_F16: return 8; + case GrColorType::kRGBA_F16_Clamped: return 8; + case GrColorType::kRGBA_F32: return 16; + case GrColorType::kAlpha_8xxx: return 4; + case GrColorType::kAlpha_F32xxx: return 16; + case GrColorType::kGray_8xxx: return 4; + case GrColorType::kR_8xxx: return 4; + case GrColorType::kAlpha_16: return 2; + case GrColorType::kRG_1616: return 4; + case GrColorType::kRGBA_16161616: return 8; + case GrColorType::kRG_F16: return 4; + case GrColorType::kRGB_888: return 3; + case GrColorType::kR_8: return 1; + case GrColorType::kR_16: return 2; + case GrColorType::kR_F16: return 2; + case GrColorType::kGray_F16: return 2; + case GrColorType::kARGB_4444: return 2; + case GrColorType::kBGRA_4444: return 2; + } + SkUNREACHABLE; +} + +// In general we try to not mix CompressionType and ColorType, but currently SkImage still requires +// an SkColorType even for CompressedTypes so we need some conversion. +static constexpr SkColorType GrCompressionTypeToSkColorType(SkTextureCompressionType compression) { + switch (compression) { + case SkTextureCompressionType::kNone: return kUnknown_SkColorType; + case SkTextureCompressionType::kETC2_RGB8_UNORM: return kRGB_888x_SkColorType; + case SkTextureCompressionType::kBC1_RGB8_UNORM: return kRGB_888x_SkColorType; + case SkTextureCompressionType::kBC1_RGBA8_UNORM: return kRGBA_8888_SkColorType; + } + + SkUNREACHABLE; +} + +enum class GrDstSampleFlags { + kNone = 0, + kRequiresTextureBarrier = 1 << 0, + kAsInputAttachment = 1 << 1, +}; +GR_MAKE_BITFIELD_CLASS_OPS(GrDstSampleFlags) + +using GrVisitProxyFunc = std::function<void(GrSurfaceProxy*, GrMipmapped)>; + +#if defined(SK_DEBUG) || GR_TEST_UTILS || defined(SK_ENABLE_DUMP_GPU) +static constexpr const char* GrBackendApiToStr(GrBackendApi api) { + switch (api) { + case GrBackendApi::kOpenGL: return "OpenGL"; + case GrBackendApi::kVulkan: return "Vulkan"; + case GrBackendApi::kMetal: return "Metal"; + case GrBackendApi::kDirect3D: return "Direct3D"; + case GrBackendApi::kDawn: return "Dawn"; + case GrBackendApi::kMock: return "Mock"; + } + SkUNREACHABLE; +} + +static constexpr const char* GrColorTypeToStr(GrColorType ct) { + switch (ct) { + case GrColorType::kUnknown: return "kUnknown"; + case GrColorType::kAlpha_8: return "kAlpha_8"; + case GrColorType::kBGR_565: return "kRGB_565"; + case GrColorType::kABGR_4444: return "kABGR_4444"; + case GrColorType::kRGBA_8888: return "kRGBA_8888"; + case GrColorType::kRGBA_8888_SRGB: return "kRGBA_8888_SRGB"; + case GrColorType::kRGB_888x: return "kRGB_888x"; + case GrColorType::kRG_88: return "kRG_88"; + case GrColorType::kBGRA_8888: return "kBGRA_8888"; + case GrColorType::kRGBA_1010102: return "kRGBA_1010102"; + case GrColorType::kBGRA_1010102: return "kBGRA_1010102"; + case GrColorType::kGray_8: return "kGray_8"; + case GrColorType::kGrayAlpha_88: return "kGrayAlpha_88"; + case GrColorType::kAlpha_F16: return "kAlpha_F16"; + case GrColorType::kRGBA_F16: return "kRGBA_F16"; + case GrColorType::kRGBA_F16_Clamped: return "kRGBA_F16_Clamped"; + case GrColorType::kRGBA_F32: return "kRGBA_F32"; + case GrColorType::kAlpha_8xxx: return "kAlpha_8xxx"; + case GrColorType::kAlpha_F32xxx: return "kAlpha_F32xxx"; + case GrColorType::kGray_8xxx: return "kGray_8xxx"; + case GrColorType::kR_8xxx: return "kR_8xxx"; + case GrColorType::kAlpha_16: return "kAlpha_16"; + case GrColorType::kRG_1616: return "kRG_1616"; + case GrColorType::kRGBA_16161616: return "kRGBA_16161616"; + case GrColorType::kRG_F16: return "kRG_F16"; + case GrColorType::kRGB_888: return "kRGB_888"; + case GrColorType::kR_8: return "kR_8"; + case GrColorType::kR_16: return "kR_16"; + case GrColorType::kR_F16: return "kR_F16"; + case GrColorType::kGray_F16: return "kGray_F16"; + case GrColorType::kARGB_4444: return "kARGB_4444"; + case GrColorType::kBGRA_4444: return "kBGRA_4444"; + } + SkUNREACHABLE; +} + +static constexpr const char* GrCompressionTypeToStr(SkTextureCompressionType compression) { + switch (compression) { + case SkTextureCompressionType::kNone: return "kNone"; + case SkTextureCompressionType::kETC2_RGB8_UNORM: return "kETC2_RGB8_UNORM"; + case SkTextureCompressionType::kBC1_RGB8_UNORM: return "kBC1_RGB8_UNORM"; + case SkTextureCompressionType::kBC1_RGBA8_UNORM: return "kBC1_RGBA8_UNORM"; + } + SkUNREACHABLE; +} + +static constexpr const char* GrSurfaceOriginToStr(GrSurfaceOrigin origin) { + switch (origin) { + case kTopLeft_GrSurfaceOrigin: return "kTopLeft"; + case kBottomLeft_GrSurfaceOrigin: return "kBottomLeft"; + } + SkUNREACHABLE; +} +#endif + +#endif |