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/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef GrVkCaps_DEFINED
#define GrVkCaps_DEFINED
#include "GrCaps.h"
#include "GrVkStencilAttachment.h"
#include "vk/GrVkDefines.h"
struct GrVkInterface;
class GrGLSLCaps;
/**
* Stores some capabilities of a Vk backend.
*/
class GrVkCaps : public GrCaps {
public:
typedef GrVkStencilAttachment::Format StencilFormat;
/**
* Creates a GrVkCaps that is set such that nothing is supported. The init function should
* be called to fill out the caps.
*/
GrVkCaps(const GrContextOptions& contextOptions, const GrVkInterface* vkInterface,
VkPhysicalDevice device, uint32_t featureFlags, uint32_t extensionFlags);
bool isConfigTexturable(GrPixelConfig config) const override {
return SkToBool(ConfigInfo::kTextureable_Flag & fConfigTable[config].fOptimalFlags);
}
bool isConfigRenderable(GrPixelConfig config, bool withMSAA) const override {
return SkToBool(ConfigInfo::kRenderable_Flag & fConfigTable[config].fOptimalFlags);
}
bool isConfigTexturableLinearly(GrPixelConfig config) const {
return SkToBool(ConfigInfo::kTextureable_Flag & fConfigTable[config].fLinearFlags);
}
bool isConfigRenderableLinearly(GrPixelConfig config, bool withMSAA) const {
return !withMSAA && SkToBool(ConfigInfo::kRenderable_Flag &
fConfigTable[config].fLinearFlags);
}
bool configCanBeDstofBlit(GrPixelConfig config, bool linearTiled) const {
const uint16_t& flags = linearTiled ? fConfigTable[config].fLinearFlags :
fConfigTable[config].fOptimalFlags;
return SkToBool(ConfigInfo::kBlitDst_Flag & flags);
}
bool configCanBeSrcofBlit(GrPixelConfig config, bool linearTiled) const {
const uint16_t& flags = linearTiled ? fConfigTable[config].fLinearFlags :
fConfigTable[config].fOptimalFlags;
return SkToBool(ConfigInfo::kBlitSrc_Flag & flags);
}
bool canUseGLSLForShaderModule() const {
return fCanUseGLSLForShaderModule;
}
bool mustDoCopiesFromOrigin() const {
return fMustDoCopiesFromOrigin;
}
bool supportsCopiesAsDraws() const {
return fSupportsCopiesAsDraws;
}
bool mustSubmitCommandsBeforeCopyOp() const {
return fMustSubmitCommandsBeforeCopyOp;
}
/**
* Returns both a supported and most prefered stencil format to use in draws.
*/
const StencilFormat& preferedStencilFormat() const {
return fPreferedStencilFormat;
}
GrGLSLCaps* glslCaps() const { return reinterpret_cast<GrGLSLCaps*>(fShaderCaps.get()); }
private:
enum VkVendor {
kQualcomm_VkVendor = 20803,
kNvidia_VkVendor = 4318,
};
void init(const GrContextOptions& contextOptions, const GrVkInterface* vkInterface,
VkPhysicalDevice device, uint32_t featureFlags, uint32_t extensionFlags);
void initGrCaps(const VkPhysicalDeviceProperties&,
const VkPhysicalDeviceMemoryProperties&,
uint32_t featureFlags);
void initGLSLCaps(const VkPhysicalDeviceProperties&, uint32_t featureFlags);
void initSampleCount(const VkPhysicalDeviceProperties& properties);
void initConfigTable(const GrVkInterface*, VkPhysicalDevice);
void initStencilFormat(const GrVkInterface* iface, VkPhysicalDevice physDev);
struct ConfigInfo {
ConfigInfo() : fOptimalFlags(0), fLinearFlags(0) {}
void init(const GrVkInterface*, VkPhysicalDevice, VkFormat);
static void InitConfigFlags(VkFormatFeatureFlags, uint16_t* flags);
enum {
kTextureable_Flag = 0x1,
kRenderable_Flag = 0x2,
kBlitSrc_Flag = 0x4,
kBlitDst_Flag = 0x8,
};
uint16_t fOptimalFlags;
uint16_t fLinearFlags;
};
ConfigInfo fConfigTable[kGrPixelConfigCnt];
StencilFormat fPreferedStencilFormat;
// Tells of if we can pass in straight GLSL string into vkCreateShaderModule
bool fCanUseGLSLForShaderModule;
// On Adreno vulkan, they do not respect the imageOffset parameter at least in
// copyImageToBuffer. This flag says that we must do the copy starting from the origin always.
bool fMustDoCopiesFromOrigin;
// Check whether we support using draws for copies.
bool fSupportsCopiesAsDraws;
// On Nvidia there is a current bug where we must the current command buffer before copy
// operations or else the copy will not happen. This includes copies, blits, resolves, and copy
// as draws.
bool fMustSubmitCommandsBeforeCopyOp;
typedef GrCaps INHERITED;
};
#endif
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