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| 1 /* |
| 2 * Copyright 2015 Google Inc. |
| 3 * |
| 4 * Use of this source code is governed by a BSD-style license that can be |
| 5 * found in the LICENSE file. |
| 6 */ |
| 7 |
| 8 #ifndef GrVkCaps_DEFINED |
| 9 #define GrVkCaps_DEFINED |
| 10 |
| 11 #include "GrCaps.h" |
| 12 #include "GrVkStencilAttachment.h" |
| 13 #include "vulkan/vulkan.h" |
| 14 |
| 15 struct GrVkInterface; |
| 16 class GrGLSLCaps; |
| 17 |
| 18 /** |
| 19 * Stores some capabilities of a Vk backend. |
| 20 */ |
| 21 class GrVkCaps : public GrCaps { |
| 22 public: |
| 23 typedef GrVkStencilAttachment::Format StencilFormat; |
| 24 |
| 25 /** |
| 26 * Creates a GrVkCaps that is set such that nothing is supported. The init f
unction should |
| 27 * be called to fill out the caps. |
| 28 */ |
| 29 GrVkCaps(const GrContextOptions& contextOptions, const GrVkInterface* vkInte
rface, |
| 30 VkPhysicalDevice device); |
| 31 |
| 32 bool isConfigTexturable(GrPixelConfig config) const override { |
| 33 SkASSERT(kGrPixelConfigCnt > config); |
| 34 return fConfigTextureSupport[config]; |
| 35 } |
| 36 |
| 37 bool isConfigRenderable(GrPixelConfig config, bool withMSAA) const override
{ |
| 38 SkASSERT(kGrPixelConfigCnt > config); |
| 39 return fConfigRenderSupport[config][withMSAA]; |
| 40 } |
| 41 |
| 42 bool isConfigRenderableLinearly(GrPixelConfig config, bool withMSAA) const { |
| 43 SkASSERT(kGrPixelConfigCnt > config); |
| 44 return fConfigLinearRenderSupport[config][withMSAA]; |
| 45 } |
| 46 |
| 47 bool isConfigTexurableLinearly(GrPixelConfig config) const { |
| 48 SkASSERT(kGrPixelConfigCnt > config); |
| 49 return fConfigLinearTextureSupport[config]; |
| 50 } |
| 51 |
| 52 /** |
| 53 * Gets an array of legal stencil formats. These formats are not guaranteed
to be supported by |
| 54 * the driver but are legal VK_TEXTURE_FORMATs. |
| 55 */ |
| 56 const SkTArray<StencilFormat, true>& stencilFormats() const { |
| 57 return fStencilFormats; |
| 58 } |
| 59 |
| 60 /** |
| 61 * Gets an array of legal stencil formats. These formats are not guaranteed
to be supported by |
| 62 * the driver but are legal VK_TEXTURE_FORMATs. |
| 63 */ |
| 64 const SkTArray<StencilFormat, true>& linearStencilFormats() const { |
| 65 return fLinearStencilFormats; |
| 66 } |
| 67 |
| 68 /** |
| 69 * Returns the max number of sampled textures we can use in a program. This
number is the max of |
| 70 * max samplers and max sampled images. This number is technically the max s
ampled textures we |
| 71 * can have per stage, but we'll use it for the whole program since for now
we only do texture |
| 72 * lookups in the fragment shader. |
| 73 */ |
| 74 int maxSampledTextures() const { |
| 75 return fMaxSampledTextures; |
| 76 } |
| 77 |
| 78 |
| 79 GrGLSLCaps* glslCaps() const { return reinterpret_cast<GrGLSLCaps*>(fShaderC
aps.get()); } |
| 80 |
| 81 private: |
| 82 void init(const GrContextOptions& contextOptions, const GrVkInterface* vkInt
erface, |
| 83 VkPhysicalDevice device); |
| 84 void initSampleCount(const VkPhysicalDeviceProperties& properties); |
| 85 void initGLSLCaps(const GrVkInterface* interface, VkPhysicalDevice physDev); |
| 86 void initConfigRenderableTable(const GrVkInterface* interface, VkPhysicalDev
ice physDev); |
| 87 void initConfigTexturableTable(const GrVkInterface* interface, VkPhysicalDev
ice physDev); |
| 88 void initStencilFormats(const GrVkInterface* interface, VkPhysicalDevice phy
sDev); |
| 89 |
| 90 |
| 91 bool fConfigTextureSupport[kGrPixelConfigCnt]; |
| 92 // For Vulkan we track whether a config is supported linearly (without need
for swizzling) |
| 93 bool fConfigLinearTextureSupport[kGrPixelConfigCnt]; |
| 94 |
| 95 // The first entry for each config is without msaa and the second is with. |
| 96 bool fConfigRenderSupport[kGrPixelConfigCnt][2]; |
| 97 // The first entry for each config is without msaa and the second is with. |
| 98 bool fConfigLinearRenderSupport[kGrPixelConfigCnt][2]; |
| 99 |
| 100 SkTArray<StencilFormat, true> fLinearStencilFormats; |
| 101 SkTArray<StencilFormat, true> fStencilFormats; |
| 102 |
| 103 int fMaxSampledTextures; |
| 104 |
| 105 typedef GrCaps INHERITED; |
| 106 }; |
| 107 |
| 108 #endif |
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