1 // Copyright 2018 The SwiftShader Authors. All Rights Reserved.
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 //    http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14 
15 #ifndef VK_RENDER_PASS_HPP_
16 #define VK_RENDER_PASS_HPP_
17 
18 #include "VkObject.hpp"
19 
20 #include <vector>
21 
22 namespace vk {
23 
24 class RenderPass : public Object<RenderPass, VkRenderPass>
25 {
26 public:
27 	RenderPass(const VkRenderPassCreateInfo *pCreateInfo, void *mem);
28 	RenderPass(const VkRenderPassCreateInfo2KHR *pCreateInfo, void *mem);
29 	void destroy(const VkAllocationCallbacks *pAllocator);
30 
31 	static size_t ComputeRequiredAllocationSize(const VkRenderPassCreateInfo *pCreateInfo);
32 	static size_t ComputeRequiredAllocationSize(const VkRenderPassCreateInfo2KHR *pCreateInfo);
33 
34 	void getRenderAreaGranularity(VkExtent2D *pGranularity) const;
35 
getAttachmentCount() const36 	uint32_t getAttachmentCount() const
37 	{
38 		return attachmentCount;
39 	}
40 
getAttachment(uint32_t attachmentIndex) const41 	VkAttachmentDescription getAttachment(uint32_t attachmentIndex) const
42 	{
43 		return attachments[attachmentIndex];
44 	}
45 
getSubpassCount() const46 	uint32_t getSubpassCount() const
47 	{
48 		return subpassCount;
49 	}
50 
getSubpass(uint32_t subpassIndex) const51 	VkSubpassDescription const &getSubpass(uint32_t subpassIndex) const
52 	{
53 		return subpasses[subpassIndex];
54 	}
55 
hasDepthStencilResolve() const56 	bool hasDepthStencilResolve() const
57 	{
58 		return subpassDepthStencilResolves != nullptr;
59 	}
60 
getSubpassDepthStencilResolve(uint32_t subpassIndex) const61 	VkSubpassDescriptionDepthStencilResolve getSubpassDepthStencilResolve(uint32_t subpassIndex) const
62 	{
63 		return subpassDepthStencilResolves[subpassIndex];
64 	}
65 
getDependencyCount() const66 	uint32_t getDependencyCount() const
67 	{
68 		return dependencyCount;
69 	}
70 
getDependency(uint32_t i) const71 	VkSubpassDependency getDependency(uint32_t i) const
72 	{
73 		return dependencies[i];
74 	}
75 
isAttachmentUsed(uint32_t i) const76 	bool isAttachmentUsed(uint32_t i) const
77 	{
78 		return attachmentFirstUse[i] >= 0;
79 	}
80 
getViewMask(uint32_t subpassIndex) const81 	uint32_t getViewMask(uint32_t subpassIndex) const
82 	{
83 		return viewMasks ? viewMasks[subpassIndex] : 1;
84 	}
85 
isMultiView() const86 	bool isMultiView() const
87 	{
88 		return viewMasks != nullptr;
89 	}
90 
getAttachmentViewMask(uint32_t attachmentIndex) const91 	uint32_t getAttachmentViewMask(uint32_t attachmentIndex) const
92 	{
93 		return attachmentViewMasks[attachmentIndex];
94 	}
95 
96 private:
97 	uint32_t attachmentCount = 0;
98 	VkAttachmentDescription *attachments = nullptr;
99 	uint32_t subpassCount = 0;
100 	VkSubpassDescription *subpasses = nullptr;
101 	VkSubpassDescriptionDepthStencilResolve *subpassDepthStencilResolves = nullptr;
102 	uint32_t dependencyCount = 0;
103 	VkSubpassDependency *dependencies = nullptr;
104 	int *attachmentFirstUse = nullptr;
105 	uint32_t *viewMasks = nullptr;
106 	uint32_t *attachmentViewMasks = nullptr;
107 
108 	void MarkFirstUse(int attachment, int subpass);
109 	template<class T>
110 	void init(const T *pCreateInfo, void **mem);
111 };
112 
Cast(VkRenderPass object)113 static inline RenderPass *Cast(VkRenderPass object)
114 {
115 	return RenderPass::Cast(object);
116 }
117 
118 }  // namespace vk
119 
120 #endif  // VK_RENDER_PASS_HPP_
121