Revert of Add vulkan files into skia repo.

src/gpu/vk/GrVkRenderPass.cpp

-/*
-* Copyright 2015 Google Inc.
-*
-* Use of this source code is governed by a BSD-style license that can be
-* found in the LICENSE file.
-*/
-
-#include "GrVkRenderPass.h"
-
-#include "GrVkFramebuffer.h"
-#include "GrVkGpu.h"
-#include "GrVkRenderTarget.h"
-#include "GrVkUtil.h"
-
-void setup_simple_vk_attachment_description(VkAttachmentDescription* attachment,
-                                            VkFormat format,
-                                            uint32_t samples,
-                                            VkImageLayout layout) {
-    attachment->flags = 0;
-    attachment->format = format;
-    SkAssertResult(GrSampleCountToVkSampleCount(samples, &attachment->samples));
-    attachment->loadOp = VK_ATTACHMENT_LOAD_OP_LOAD;
-    attachment->storeOp = VK_ATTACHMENT_STORE_OP_STORE;
-    attachment->stencilLoadOp = VK_ATTACHMENT_LOAD_OP_LOAD;
-    attachment->storeOp = VK_ATTACHMENT_STORE_OP_STORE;
-    attachment->initialLayout = layout;
-    attachment->finalLayout = layout;
-}
-
-void GrVkRenderPass::initSimple(const GrVkGpu* gpu, const GrVkRenderTarget& target) {
-    // Get attachment information from render target. This includes which attachments the render
-    // target has (color, resolve, stencil) and the attachments format and sample count.
-    target.getAttachmentsDescriptor(&fAttachmentsDescriptor, &fAttachmentFlags);
-
-    uint32_t numAttachments = fAttachmentsDescriptor.fAttachmentCount;
-    // Attachment descriptions to be set on the render pass
-    SkTArray<VkAttachmentDescription> attachments(numAttachments);
-    attachments.reset(numAttachments);
-    memset(attachments.begin(), 0, numAttachments*sizeof(VkAttachmentDescription));
-
-    // Refs to attachments on the render pass (as described by teh VkAttachmentDescription above),
-    // that are used by the subpass.
-    VkAttachmentReference colorRef;
-    VkAttachmentReference resolveRef;
-    VkAttachmentReference stencilRef;
-    uint32_t currentAttachment = 0;
-
-    // Go through each of the attachment types (color, resolve, stencil) and set the necessary
-    // on the various Vk structs.
-    VkSubpassDescription subpassDesc;
-    memset(&subpassDesc, 0, sizeof(VkSubpassDescription));
-    subpassDesc.flags = 0;
-    subpassDesc.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS;
-    subpassDesc.inputAttachmentCount = 0;
-    subpassDesc.pInputAttachments = nullptr;
-    if (fAttachmentFlags & kColor_AttachmentFlag) {
-        // set up color attachment
-        setup_simple_vk_attachment_description(&attachments[currentAttachment],
-                                               fAttachmentsDescriptor.fColor.fFormat,
-                                               fAttachmentsDescriptor.fColor.fSamples,
-                                               VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL);
-        // setup subpass use of attachment
-        colorRef.attachment = currentAttachment++;
-        colorRef.layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
-        subpassDesc.colorAttachmentCount = 1;
-    } else {
-        // I don't think there should ever be a time where we don't have a color attachment
-        SkASSERT(false);
-        colorRef.attachment = VK_ATTACHMENT_UNUSED;
-        colorRef.layout = VK_IMAGE_LAYOUT_UNDEFINED;
-        subpassDesc.colorAttachmentCount = 0;
-    }
-    subpassDesc.pColorAttachments = &colorRef;
-
-    if (fAttachmentFlags & kResolve_AttachmentFlag) {
-        // set up resolve attachment
-        setup_simple_vk_attachment_description(&attachments[currentAttachment],
-                                               fAttachmentsDescriptor.fResolve.fFormat,
-                                               fAttachmentsDescriptor.fResolve.fSamples,
-                                               VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL);
-        // setup subpass use of attachment
-        resolveRef.attachment = currentAttachment++;
-        // I'm really not sure what the layout should be for the resolve textures.
-        resolveRef.layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
-        subpassDesc.pResolveAttachments = &resolveRef;
-    } else {
-        subpassDesc.pResolveAttachments = nullptr;
-    }
-
-    if (fAttachmentFlags & kStencil_AttachmentFlag) {
-        // set up stencil attachment
-        setup_simple_vk_attachment_description(&attachments[currentAttachment],
-                                               fAttachmentsDescriptor.fStencil.fFormat,
-                                               fAttachmentsDescriptor.fStencil.fSamples,
-                                               VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL);
-        // setup subpass use of attachment
-        stencilRef.attachment = currentAttachment++;
-        stencilRef.layout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
-    } else {
-        stencilRef.attachment = VK_ATTACHMENT_UNUSED;
-        stencilRef.layout = VK_IMAGE_LAYOUT_UNDEFINED;
-    }
-    subpassDesc.pDepthStencilAttachment = &stencilRef;
-
-    subpassDesc.preserveAttachmentCount = 0;
-    subpassDesc.pPreserveAttachments = nullptr;
-
-    SkASSERT(numAttachments == currentAttachment);
-
-    // Create the VkRenderPass compatible with the attachment descriptions above
-    VkRenderPassCreateInfo createInfo;
-    memset(&createInfo, 0, sizeof(VkRenderPassCreateInfo));
-    createInfo.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO;
-    createInfo.pNext = nullptr;
-    createInfo.flags = 0;
-    createInfo.attachmentCount = numAttachments;
-    createInfo.pAttachments = attachments.begin();
-    createInfo.subpassCount = 1;
-    createInfo.pSubpasses = &subpassDesc;
-    createInfo.dependencyCount = 0;
-    createInfo.pDependencies = nullptr;
-
-    GR_VK_CALL_ERRCHECK(gpu->vkInterface(), CreateRenderPass(gpu->device(),
-                                                             &createInfo,
-                                                             nullptr,
-                                                             &fRenderPass));
-}
-
-void GrVkRenderPass::freeGPUData(const GrVkGpu* gpu) const {
-    GR_VK_CALL(gpu->vkInterface(), DestroyRenderPass(gpu->device(), fRenderPass, nullptr));
-}
-
-// Works under the assumption that color attachment will always be the first attachment in our
-// attachment array if it exists.
-bool GrVkRenderPass::colorAttachmentIndex(uint32_t* index) const {
-    *index = 0;
-    if (fAttachmentFlags & kColor_AttachmentFlag) {
-        return true;
-    }
-    return false;
-}
-
-// Works under the assumption that resolve attachment will always be after the color attachment.
-bool GrVkRenderPass::resolveAttachmentIndex(uint32_t* index) const {
-    *index = 0;
-    if (fAttachmentFlags & kColor_AttachmentFlag) {
-        ++(*index);
-    }
-    if (fAttachmentFlags & kResolve_AttachmentFlag) {
-        return true;
-    }
-    return false;
-}
-
-// Works under the assumption that stencil attachment will always be after the color and resolve
-// attachment.
-bool GrVkRenderPass::stencilAttachmentIndex(uint32_t* index) const {
-    *index = 0;
-    if (fAttachmentFlags & kColor_AttachmentFlag) {
-        ++(*index);
-    }
-    if (fAttachmentFlags & kResolve_AttachmentFlag) {
-        ++(*index);
-    }
-    if (fAttachmentFlags & kStencil_AttachmentFlag) {
-        return true;
-    }
-    return false;
-}
-
-void GrVkRenderPass::getBeginInfo(const GrVkRenderTarget& target,
-                                  VkRenderPassBeginInfo* beginInfo,
-                                  VkSubpassContents* contents) const {
-    SkASSERT(this->isCompatible(target));
-
-    VkRect2D renderArea;
-    renderArea.offset = { 0, 0 };
-    renderArea.extent = { (uint32_t)target.width(), (uint32_t)target.height() };
-
-    memset(beginInfo, 0, sizeof(VkRenderPassBeginInfo));
-    beginInfo->sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
-    beginInfo->pNext = nullptr;
-    beginInfo->renderPass = fRenderPass;
-    beginInfo->framebuffer = target.framebuffer()->framebuffer();
-    beginInfo->renderArea = renderArea;
-    beginInfo->clearValueCount = 0;
-    beginInfo->pClearValues = nullptr;
-
-    // Currently just assuming no secondary cmd buffers. This value will need to be update if we 
-    // have them.
-    *contents = VK_SUBPASS_CONTENTS_INLINE;
-}
-
-bool GrVkRenderPass::isCompatible(const GrVkRenderTarget& target) const {
-    AttachmentsDescriptor desc;
-    AttachmentFlags flags;
-    target.getAttachmentsDescriptor(&desc, &flags);
-
-    if (flags != fAttachmentFlags) {
-        return false;
-    }
-
-    if (fAttachmentFlags & kColor_AttachmentFlag) {
-        if (fAttachmentsDescriptor.fColor != desc.fColor) {
-            return false;
-        }
-    }
-    if (fAttachmentFlags & kResolve_AttachmentFlag) {
-        if (fAttachmentsDescriptor.fResolve != desc.fResolve) {
-            return false;
-        }
-    }
-    if (fAttachmentFlags & kStencil_AttachmentFlag) {
-        if (fAttachmentsDescriptor.fStencil != desc.fStencil) {
-            return false;
-        }
-    }
-
-    return true;
-}