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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 #include "GrVkRenderPass.h" |
| 9 |
| 10 #include "GrVkFramebuffer.h" |
| 11 #include "GrVkGpu.h" |
| 12 #include "GrVkRenderTarget.h" |
| 13 #include "GrVkUtil.h" |
| 14 |
| 15 void setup_simple_vk_attachment_description(VkAttachmentDescription* attachment, |
| 16 VkFormat format, |
| 17 uint32_t samples, |
| 18 VkImageLayout layout) { |
| 19 attachment->flags = 0; |
| 20 attachment->format = format; |
| 21 SkAssertResult(GrSampleCountToVkSampleCount(samples, &attachment->samples)); |
| 22 attachment->loadOp = VK_ATTACHMENT_LOAD_OP_LOAD; |
| 23 attachment->storeOp = VK_ATTACHMENT_STORE_OP_STORE; |
| 24 attachment->stencilLoadOp = VK_ATTACHMENT_LOAD_OP_LOAD; |
| 25 attachment->storeOp = VK_ATTACHMENT_STORE_OP_STORE; |
| 26 attachment->initialLayout = layout; |
| 27 attachment->finalLayout = layout; |
| 28 } |
| 29 |
| 30 void GrVkRenderPass::initSimple(const GrVkGpu* gpu, const GrVkRenderTarget& targ
et) { |
| 31 // Get attachment information from render target. This includes which attach
ments the render |
| 32 // target has (color, resolve, stencil) and the attachments format and sampl
e count. |
| 33 target.getAttachmentsDescriptor(&fAttachmentsDescriptor, &fAttachmentFlags); |
| 34 |
| 35 uint32_t numAttachments = fAttachmentsDescriptor.fAttachmentCount; |
| 36 // Attachment descriptions to be set on the render pass |
| 37 SkTArray<VkAttachmentDescription> attachments(numAttachments); |
| 38 attachments.reset(numAttachments); |
| 39 memset(attachments.begin(), 0, numAttachments*sizeof(VkAttachmentDescription
)); |
| 40 |
| 41 // Refs to attachments on the render pass (as described by teh VkAttachmentD
escription above), |
| 42 // that are used by the subpass. |
| 43 VkAttachmentReference colorRef; |
| 44 VkAttachmentReference resolveRef; |
| 45 VkAttachmentReference stencilRef; |
| 46 uint32_t currentAttachment = 0; |
| 47 |
| 48 // Go through each of the attachment types (color, resolve, stencil) and set
the necessary |
| 49 // on the various Vk structs. |
| 50 VkSubpassDescription subpassDesc; |
| 51 memset(&subpassDesc, 0, sizeof(VkSubpassDescription)); |
| 52 subpassDesc.flags = 0; |
| 53 subpassDesc.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS; |
| 54 subpassDesc.inputAttachmentCount = 0; |
| 55 subpassDesc.pInputAttachments = nullptr; |
| 56 if (fAttachmentFlags & kColor_AttachmentFlag) { |
| 57 // set up color attachment |
| 58 setup_simple_vk_attachment_description(&attachments[currentAttachment], |
| 59 fAttachmentsDescriptor.fColor.fFo
rmat, |
| 60 fAttachmentsDescriptor.fColor.fSa
mples, |
| 61 VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_
OPTIMAL); |
| 62 // setup subpass use of attachment |
| 63 colorRef.attachment = currentAttachment++; |
| 64 colorRef.layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL; |
| 65 subpassDesc.colorAttachmentCount = 1; |
| 66 } else { |
| 67 // I don't think there should ever be a time where we don't have a color
attachment |
| 68 SkASSERT(false); |
| 69 colorRef.attachment = VK_ATTACHMENT_UNUSED; |
| 70 colorRef.layout = VK_IMAGE_LAYOUT_UNDEFINED; |
| 71 subpassDesc.colorAttachmentCount = 0; |
| 72 } |
| 73 subpassDesc.pColorAttachments = &colorRef; |
| 74 |
| 75 if (fAttachmentFlags & kResolve_AttachmentFlag) { |
| 76 // set up resolve attachment |
| 77 setup_simple_vk_attachment_description(&attachments[currentAttachment], |
| 78 fAttachmentsDescriptor.fResolve.f
Format, |
| 79 fAttachmentsDescriptor.fResolve.f
Samples, |
| 80 VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_
OPTIMAL); |
| 81 // setup subpass use of attachment |
| 82 resolveRef.attachment = currentAttachment++; |
| 83 // I'm really not sure what the layout should be for the resolve texture
s. |
| 84 resolveRef.layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL; |
| 85 subpassDesc.pResolveAttachments = &resolveRef; |
| 86 } else { |
| 87 subpassDesc.pResolveAttachments = nullptr; |
| 88 } |
| 89 |
| 90 if (fAttachmentFlags & kStencil_AttachmentFlag) { |
| 91 // set up stencil attachment |
| 92 setup_simple_vk_attachment_description(&attachments[currentAttachment], |
| 93 fAttachmentsDescriptor.fStencil.f
Format, |
| 94 fAttachmentsDescriptor.fStencil.f
Samples, |
| 95 VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATT
ACHMENT_OPTIMAL); |
| 96 // setup subpass use of attachment |
| 97 stencilRef.attachment = currentAttachment++; |
| 98 stencilRef.layout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL; |
| 99 } else { |
| 100 stencilRef.attachment = VK_ATTACHMENT_UNUSED; |
| 101 stencilRef.layout = VK_IMAGE_LAYOUT_UNDEFINED; |
| 102 } |
| 103 subpassDesc.pDepthStencilAttachment = &stencilRef; |
| 104 |
| 105 subpassDesc.preserveAttachmentCount = 0; |
| 106 subpassDesc.pPreserveAttachments = nullptr; |
| 107 |
| 108 SkASSERT(numAttachments == currentAttachment); |
| 109 |
| 110 // Create the VkRenderPass compatible with the attachment descriptions above |
| 111 VkRenderPassCreateInfo createInfo; |
| 112 memset(&createInfo, 0, sizeof(VkRenderPassCreateInfo)); |
| 113 createInfo.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO; |
| 114 createInfo.pNext = nullptr; |
| 115 createInfo.flags = 0; |
| 116 createInfo.attachmentCount = numAttachments; |
| 117 createInfo.pAttachments = attachments.begin(); |
| 118 createInfo.subpassCount = 1; |
| 119 createInfo.pSubpasses = &subpassDesc; |
| 120 createInfo.dependencyCount = 0; |
| 121 createInfo.pDependencies = nullptr; |
| 122 |
| 123 GR_VK_CALL_ERRCHECK(gpu->vkInterface(), CreateRenderPass(gpu->device(), |
| 124 &createInfo, |
| 125 nullptr, |
| 126 &fRenderPass)); |
| 127 } |
| 128 |
| 129 void GrVkRenderPass::freeGPUData(const GrVkGpu* gpu) const { |
| 130 GR_VK_CALL(gpu->vkInterface(), DestroyRenderPass(gpu->device(), fRenderPass,
nullptr)); |
| 131 } |
| 132 |
| 133 // Works under the assumption that color attachment will always be the first att
achment in our |
| 134 // attachment array if it exists. |
| 135 bool GrVkRenderPass::colorAttachmentIndex(uint32_t* index) const { |
| 136 *index = 0; |
| 137 if (fAttachmentFlags & kColor_AttachmentFlag) { |
| 138 return true; |
| 139 } |
| 140 return false; |
| 141 } |
| 142 |
| 143 // Works under the assumption that resolve attachment will always be after the c
olor attachment. |
| 144 bool GrVkRenderPass::resolveAttachmentIndex(uint32_t* index) const { |
| 145 *index = 0; |
| 146 if (fAttachmentFlags & kColor_AttachmentFlag) { |
| 147 ++(*index); |
| 148 } |
| 149 if (fAttachmentFlags & kResolve_AttachmentFlag) { |
| 150 return true; |
| 151 } |
| 152 return false; |
| 153 } |
| 154 |
| 155 // Works under the assumption that stencil attachment will always be after the c
olor and resolve |
| 156 // attachment. |
| 157 bool GrVkRenderPass::stencilAttachmentIndex(uint32_t* index) const { |
| 158 *index = 0; |
| 159 if (fAttachmentFlags & kColor_AttachmentFlag) { |
| 160 ++(*index); |
| 161 } |
| 162 if (fAttachmentFlags & kResolve_AttachmentFlag) { |
| 163 ++(*index); |
| 164 } |
| 165 if (fAttachmentFlags & kStencil_AttachmentFlag) { |
| 166 return true; |
| 167 } |
| 168 return false; |
| 169 } |
| 170 |
| 171 void GrVkRenderPass::getBeginInfo(const GrVkRenderTarget& target, |
| 172 VkRenderPassBeginInfo* beginInfo, |
| 173 VkSubpassContents* contents) const { |
| 174 SkASSERT(this->isCompatible(target)); |
| 175 |
| 176 VkRect2D renderArea; |
| 177 renderArea.offset = { 0, 0 }; |
| 178 renderArea.extent = { (uint32_t)target.width(), (uint32_t)target.height() }; |
| 179 |
| 180 memset(beginInfo, 0, sizeof(VkRenderPassBeginInfo)); |
| 181 beginInfo->sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO; |
| 182 beginInfo->pNext = nullptr; |
| 183 beginInfo->renderPass = fRenderPass; |
| 184 beginInfo->framebuffer = target.framebuffer()->framebuffer(); |
| 185 beginInfo->renderArea = renderArea; |
| 186 beginInfo->clearValueCount = 0; |
| 187 beginInfo->pClearValues = nullptr; |
| 188 |
| 189 // Currently just assuming no secondary cmd buffers. This value will need to
be update if we |
| 190 // have them. |
| 191 *contents = VK_SUBPASS_CONTENTS_INLINE; |
| 192 } |
| 193 |
| 194 bool GrVkRenderPass::isCompatible(const GrVkRenderTarget& target) const { |
| 195 AttachmentsDescriptor desc; |
| 196 AttachmentFlags flags; |
| 197 target.getAttachmentsDescriptor(&desc, &flags); |
| 198 |
| 199 if (flags != fAttachmentFlags) { |
| 200 return false; |
| 201 } |
| 202 |
| 203 if (fAttachmentFlags & kColor_AttachmentFlag) { |
| 204 if (fAttachmentsDescriptor.fColor != desc.fColor) { |
| 205 return false; |
| 206 } |
| 207 } |
| 208 if (fAttachmentFlags & kResolve_AttachmentFlag) { |
| 209 if (fAttachmentsDescriptor.fResolve != desc.fResolve) { |
| 210 return false; |
| 211 } |
| 212 } |
| 213 if (fAttachmentFlags & kStencil_AttachmentFlag) { |
| 214 if (fAttachmentsDescriptor.fStencil != desc.fStencil) { |
| 215 return false; |
| 216 } |
| 217 } |
| 218 |
| 219 return true; |
| 220 } |
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