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255 lines
10 KiB
255 lines
10 KiB
4 months ago
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/*
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* Copyright 2017 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef SkSurfaceCharacterization_DEFINED
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#define SkSurfaceCharacterization_DEFINED
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#include "include/gpu/GrTypes.h"
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#include "include/core/SkColorSpace.h"
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#include "include/core/SkImageInfo.h"
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#include "include/core/SkRefCnt.h"
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#include "include/core/SkSurfaceProps.h"
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class SkColorSpace;
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#include "include/gpu/GrBackendSurface.h"
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#if SK_SUPPORT_GPU
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#include "include/gpu/GrContextThreadSafeProxy.h"
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/** \class SkSurfaceCharacterization
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A surface characterization contains all the information Ganesh requires to makes its internal
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rendering decisions. When passed into a SkDeferredDisplayListRecorder it will copy the
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data and pass it on to the SkDeferredDisplayList if/when it is created. Note that both of
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those objects (the Recorder and the DisplayList) will take a ref on the
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GrContextThreadSafeProxy and SkColorSpace objects.
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*/
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class SK_API SkSurfaceCharacterization {
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public:
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enum class Textureable : bool { kNo = false, kYes = true };
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enum class MipMapped : bool { kNo = false, kYes = true };
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enum class UsesGLFBO0 : bool { kNo = false, kYes = true };
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// This flag indicates that the backing VkImage for this Vulkan surface will have the
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// VK_IMAGE_USAGE_INPUT_ATTACHMENT_BIT set. This bit allows skia to handle advanced blends
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// more optimally in a shader by being able to directly read the dst values.
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enum class VkRTSupportsInputAttachment : bool { kNo = false, kYes = true };
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// This flag indicates if the surface is wrapping a raw Vulkan secondary command buffer.
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enum class VulkanSecondaryCBCompatible : bool { kNo = false, kYes = true };
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SkSurfaceCharacterization()
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: fCacheMaxResourceBytes(0)
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, fOrigin(kBottomLeft_GrSurfaceOrigin)
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, fSampleCnt(0)
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, fIsTextureable(Textureable::kYes)
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, fIsMipMapped(MipMapped::kYes)
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, fUsesGLFBO0(UsesGLFBO0::kNo)
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, fVulkanSecondaryCBCompatible(VulkanSecondaryCBCompatible::kNo)
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, fIsProtected(GrProtected::kNo)
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, fSurfaceProps(0, kUnknown_SkPixelGeometry) {
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}
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SkSurfaceCharacterization(SkSurfaceCharacterization&&) = default;
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SkSurfaceCharacterization& operator=(SkSurfaceCharacterization&&) = default;
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SkSurfaceCharacterization(const SkSurfaceCharacterization&) = default;
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SkSurfaceCharacterization& operator=(const SkSurfaceCharacterization& other) = default;
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bool operator==(const SkSurfaceCharacterization& other) const;
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bool operator!=(const SkSurfaceCharacterization& other) const {
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return !(*this == other);
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}
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/*
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* Return a new surface characterization with the only difference being a different width
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* and height
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*/
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SkSurfaceCharacterization createResized(int width, int height) const;
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/*
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* Return a new surface characterization with only a replaced color space
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*/
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SkSurfaceCharacterization createColorSpace(sk_sp<SkColorSpace>) const;
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/*
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* Return a new surface characterization with the backend format replaced. A colorType
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* must also be supplied to indicate the interpretation of the new format.
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*/
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SkSurfaceCharacterization createBackendFormat(SkColorType colorType,
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const GrBackendFormat& backendFormat) const;
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/*
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* Return a new surface characterization with just a different use of FBO0 (in GL)
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*/
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SkSurfaceCharacterization createFBO0(bool usesGLFBO0) const;
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GrContextThreadSafeProxy* contextInfo() const { return fContextInfo.get(); }
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sk_sp<GrContextThreadSafeProxy> refContextInfo() const { return fContextInfo; }
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size_t cacheMaxResourceBytes() const { return fCacheMaxResourceBytes; }
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bool isValid() const { return kUnknown_SkColorType != fImageInfo.colorType(); }
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const SkImageInfo& imageInfo() const { return fImageInfo; }
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const GrBackendFormat& backendFormat() const { return fBackendFormat; }
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GrSurfaceOrigin origin() const { return fOrigin; }
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SkISize dimensions() const { return fImageInfo.dimensions(); }
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int width() const { return fImageInfo.width(); }
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int height() const { return fImageInfo.height(); }
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SkColorType colorType() const { return fImageInfo.colorType(); }
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int sampleCount() const { return fSampleCnt; }
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bool isTextureable() const { return Textureable::kYes == fIsTextureable; }
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bool isMipMapped() const { return MipMapped::kYes == fIsMipMapped; }
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bool usesGLFBO0() const { return UsesGLFBO0::kYes == fUsesGLFBO0; }
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bool vkRTSupportsInputAttachment() const {
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return VkRTSupportsInputAttachment::kYes == fVkRTSupportsInputAttachment;
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}
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bool vulkanSecondaryCBCompatible() const {
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return VulkanSecondaryCBCompatible::kYes == fVulkanSecondaryCBCompatible;
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}
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GrProtected isProtected() const { return fIsProtected; }
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SkColorSpace* colorSpace() const { return fImageInfo.colorSpace(); }
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sk_sp<SkColorSpace> refColorSpace() const { return fImageInfo.refColorSpace(); }
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const SkSurfaceProps& surfaceProps()const { return fSurfaceProps; }
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// Is the provided backend texture compatible with this surface characterization?
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bool isCompatible(const GrBackendTexture&) const;
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private:
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friend class SkSurface_Gpu; // for 'set' & 'config'
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friend class GrVkSecondaryCBDrawContext; // for 'set' & 'config'
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friend class GrContextThreadSafeProxy; // for private ctor
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friend class SkDeferredDisplayListRecorder; // for 'config'
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friend class SkSurface; // for 'config'
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SkDEBUGCODE(void validate() const;)
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SkSurfaceCharacterization(sk_sp<GrContextThreadSafeProxy> contextInfo,
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size_t cacheMaxResourceBytes,
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const SkImageInfo& ii,
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const GrBackendFormat& backendFormat,
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GrSurfaceOrigin origin,
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int sampleCnt,
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Textureable isTextureable,
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MipMapped isMipMapped,
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UsesGLFBO0 usesGLFBO0,
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VkRTSupportsInputAttachment vkRTSupportsInputAttachment,
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VulkanSecondaryCBCompatible vulkanSecondaryCBCompatible,
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GrProtected isProtected,
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const SkSurfaceProps& surfaceProps)
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: fContextInfo(std::move(contextInfo))
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, fCacheMaxResourceBytes(cacheMaxResourceBytes)
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, fImageInfo(ii)
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, fBackendFormat(backendFormat)
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, fOrigin(origin)
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, fSampleCnt(sampleCnt)
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, fIsTextureable(isTextureable)
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, fIsMipMapped(isMipMapped)
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, fUsesGLFBO0(usesGLFBO0)
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, fVkRTSupportsInputAttachment(vkRTSupportsInputAttachment)
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, fVulkanSecondaryCBCompatible(vulkanSecondaryCBCompatible)
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, fIsProtected(isProtected)
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, fSurfaceProps(surfaceProps) {
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SkDEBUGCODE(this->validate());
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}
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void set(sk_sp<GrContextThreadSafeProxy> contextInfo,
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size_t cacheMaxResourceBytes,
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const SkImageInfo& ii,
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const GrBackendFormat& backendFormat,
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GrSurfaceOrigin origin,
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int sampleCnt,
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Textureable isTextureable,
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MipMapped isMipMapped,
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UsesGLFBO0 usesGLFBO0,
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VkRTSupportsInputAttachment vkRTSupportsInputAttachment,
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VulkanSecondaryCBCompatible vulkanSecondaryCBCompatible,
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GrProtected isProtected,
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const SkSurfaceProps& surfaceProps) {
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fContextInfo = contextInfo;
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fCacheMaxResourceBytes = cacheMaxResourceBytes;
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fImageInfo = ii;
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fBackendFormat = backendFormat;
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fOrigin = origin;
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fSampleCnt = sampleCnt;
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fIsTextureable = isTextureable;
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fIsMipMapped = isMipMapped;
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fUsesGLFBO0 = usesGLFBO0;
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fVkRTSupportsInputAttachment = vkRTSupportsInputAttachment;
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fVulkanSecondaryCBCompatible = vulkanSecondaryCBCompatible;
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fIsProtected = isProtected;
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fSurfaceProps = surfaceProps;
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SkDEBUGCODE(this->validate());
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}
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sk_sp<GrContextThreadSafeProxy> fContextInfo;
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size_t fCacheMaxResourceBytes;
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SkImageInfo fImageInfo;
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GrBackendFormat fBackendFormat;
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GrSurfaceOrigin fOrigin;
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int fSampleCnt;
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Textureable fIsTextureable;
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MipMapped fIsMipMapped;
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UsesGLFBO0 fUsesGLFBO0;
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VkRTSupportsInputAttachment fVkRTSupportsInputAttachment;
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VulkanSecondaryCBCompatible fVulkanSecondaryCBCompatible;
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GrProtected fIsProtected;
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SkSurfaceProps fSurfaceProps;
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};
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#else// !SK_SUPPORT_GPU
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class SK_API SkSurfaceCharacterization {
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public:
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SkSurfaceCharacterization() : fSurfaceProps(0, kUnknown_SkPixelGeometry) { }
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SkSurfaceCharacterization createResized(int width, int height) const {
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return *this;
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}
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SkSurfaceCharacterization createColorSpace(sk_sp<SkColorSpace>) const {
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return *this;
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}
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SkSurfaceCharacterization createBackendFormat(SkColorType, const GrBackendFormat&) const {
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return *this;
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}
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SkSurfaceCharacterization createFBO0(bool usesGLFBO0) const {
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return *this;
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}
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bool operator==(const SkSurfaceCharacterization& other) const { return false; }
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bool operator!=(const SkSurfaceCharacterization& other) const {
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return !(*this == other);
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}
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size_t cacheMaxResourceBytes() const { return 0; }
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bool isValid() const { return false; }
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int width() const { return 0; }
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int height() const { return 0; }
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int stencilCount() const { return 0; }
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bool isTextureable() const { return false; }
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bool isMipMapped() const { return false; }
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bool usesGLFBO0() const { return false; }
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bool vkRTSupportsAttachmentInput() const { return false; }
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bool vulkanSecondaryCBCompatible() const { return false; }
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SkColorSpace* colorSpace() const { return nullptr; }
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sk_sp<SkColorSpace> refColorSpace() const { return nullptr; }
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const SkSurfaceProps& surfaceProps()const { return fSurfaceProps; }
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private:
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SkSurfaceProps fSurfaceProps;
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};
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#endif
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#endif
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