OLD | NEW |
| (Empty) |
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 GrVkRenderPass_DEFINED | |
9 #define GrVkRenderPass_DEFINED | |
10 | |
11 #include "GrTypes.h" | |
12 | |
13 #include "GrVkResource.h" | |
14 | |
15 #include "vulkan/vulkan.h" | |
16 | |
17 class GrVkGpu; | |
18 class GrVkRenderTarget; | |
19 | |
20 class GrVkRenderPass : public GrVkResource { | |
21 public: | |
22 GrVkRenderPass() : INHERITED(), fRenderPass(nullptr) {} | |
23 void initSimple(const GrVkGpu* gpu, const GrVkRenderTarget& target); | |
24 | |
25 struct AttachmentsDescriptor { | |
26 struct AttachmentDesc { | |
27 VkFormat fFormat; | |
28 int fSamples; | |
29 AttachmentDesc() : fFormat(VK_FORMAT_UNDEFINED), fSamples(0) {} | |
30 bool operator==(const AttachmentDesc& right) const { | |
31 return (fFormat == right.fFormat && fSamples == right.fSamples); | |
32 } | |
33 bool operator!=(const AttachmentDesc& right) const { | |
34 return !(*this == right); | |
35 } | |
36 }; | |
37 AttachmentDesc fColor; | |
38 AttachmentDesc fResolve; | |
39 AttachmentDesc fStencil; | |
40 uint32_t fAttachmentCount; | |
41 }; | |
42 | |
43 enum AttachmentFlags { | |
44 kColor_AttachmentFlag = 0x1, | |
45 kResolve_AttachmentFlag = 0x2, | |
46 kStencil_AttachmentFlag = 0x4, | |
47 }; | |
48 GR_DECL_BITFIELD_OPS_FRIENDS(AttachmentFlags); | |
49 | |
50 // The following return the index of the render pass attachment array for th
e given attachment. | |
51 // If the render pass does not have the given attachment it will return fals
e and not set the | |
52 // index value. | |
53 bool colorAttachmentIndex(uint32_t* index) const; | |
54 bool resolveAttachmentIndex(uint32_t* index) const; | |
55 bool stencilAttachmentIndex(uint32_t* index) const; | |
56 | |
57 // Sets the VkRenderPassBeginInfo and VkRenderPassContents need to begin a r
ender pass. | |
58 // TODO: In the future I expect this function will also take an optional ren
der area instead of | |
59 // defaulting to the entire render target. | |
60 // TODO: Figure out if load clear values should be passed into this function
or should be stored | |
61 // on the GrVkRenderPass at create time since we'll know at that point if we
want to do a load | |
62 // clear. | |
63 void getBeginInfo(const GrVkRenderTarget& target, | |
64 VkRenderPassBeginInfo* beginInfo, | |
65 VkSubpassContents* contents) const; | |
66 | |
67 // Returns whether or not the structure of a RenderTarget matches that of th
e VkRenderPass in | |
68 // this object. Specifically this compares that the number of attachments, f
ormat of | |
69 // attachments, and sample counts are all the same. This function is used in
the creation of | |
70 // basic RenderPasses that can be used when creating a VkFrameBuffer object. | |
71 bool isCompatible(const GrVkRenderTarget& target) const; | |
72 | |
73 VkRenderPass vkRenderPass() const { return fRenderPass; } | |
74 | |
75 private: | |
76 GrVkRenderPass(const GrVkRenderPass&); | |
77 GrVkRenderPass& operator=(const GrVkRenderPass&); | |
78 | |
79 void freeGPUData(const GrVkGpu* gpu) const override; | |
80 | |
81 VkRenderPass fRenderPass; | |
82 AttachmentFlags fAttachmentFlags; | |
83 AttachmentsDescriptor fAttachmentsDescriptor; | |
84 | |
85 typedef GrVkResource INHERITED; | |
86 }; | |
87 | |
88 GR_MAKE_BITFIELD_OPS(GrVkRenderPass::AttachmentFlags); | |
89 | |
90 #endif | |
OLD | NEW |