bool Tutorial03::CreateCommandBuffers() {
if( !CreateCommandPool( GetGraphicsQueue().FamilyIndex, &Vulkan.GraphicsCommandPool ) ) {
std::cout << "Could not create command pool!" << std::endl;
return false;
}
uint32_t image_count = static_cast<uint32_t>(GetSwapChain().Images.size());
Vulkan.GraphicsCommandBuffers.resize( image_count, VK_NULL_HANDLE );
if( !AllocateCommandBuffers( Vulkan.GraphicsCommandPool, image_count, &Vulkan.GraphicsCommandBuffers[0] ) ) {
std::cout << "Could not allocate command buffers!" << std::endl;
return false;
}
return true;
}
GrVkCommandBuffer* GrVkCommandBuffer::Create(const GrVkGpu* gpu, VkCommandPool cmdPool) {
const VkCommandBufferAllocateInfo cmdInfo = {
VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO, // sType
NULL, // pNext
cmdPool, // commandPool
VK_COMMAND_BUFFER_LEVEL_PRIMARY, // level
1 // bufferCount
};
VkCommandBuffer cmdBuffer;
VkResult err = GR_VK_CALL(gpu->vkInterface(), AllocateCommandBuffers(gpu->device(),
&cmdInfo,
&cmdBuffer));
if (err) {
return nullptr;
}
return new GrVkCommandBuffer(cmdBuffer);
}
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(EmptySurfaceSemaphoreTest, reporter, ctxInfo) {
GrContext* ctx = ctxInfo.grContext();
if (!ctx->caps()->fenceSyncSupport()) {
return;
}
const SkImageInfo ii = SkImageInfo::Make(MAIN_W, MAIN_H, kRGBA_8888_SkColorType,
kPremul_SkAlphaType);
sk_sp<SkSurface> mainSurface(SkSurface::MakeRenderTarget(ctx, SkBudgeted::kNo,
ii, 0, kTopLeft_GrSurfaceOrigin,
nullptr));
// Flush surface once without semaphores to make sure there is no peneding IO for it.
mainSurface->flush();
GrBackendSemaphore semaphore;
GrSemaphoresSubmitted submitted = mainSurface->flushAndSignalSemaphores(1, &semaphore);
REPORTER_ASSERT(reporter, GrSemaphoresSubmitted::kYes == submitted);
if (kOpenGL_GrBackend == ctxInfo.backend()) {
GrGLGpu* gpu = static_cast<GrGLGpu*>(ctx->contextPriv().getGpu());
const GrGLInterface* interface = gpu->glInterface();
GrGLsync sync = semaphore.glSync();
REPORTER_ASSERT(reporter, sync);
bool result;
GR_GL_CALL_RET(interface, result, IsSync(sync));
REPORTER_ASSERT(reporter, result);
}
#ifdef SK_VULKAN
if (kVulkan_GrBackend == ctxInfo.backend()) {
GrVkGpu* gpu = static_cast<GrVkGpu*>(ctx->contextPriv().getGpu());
const GrVkInterface* interface = gpu->vkInterface();
VkDevice device = gpu->device();
VkQueue queue = gpu->queue();
VkCommandPool cmdPool = gpu->cmdPool();
VkCommandBuffer cmdBuffer;
// Create Command Buffer
const VkCommandBufferAllocateInfo cmdInfo = {
VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO, // sType
nullptr, // pNext
cmdPool, // commandPool
VK_COMMAND_BUFFER_LEVEL_PRIMARY, // level
1 // bufferCount
};
VkResult err = GR_VK_CALL(interface, AllocateCommandBuffers(device, &cmdInfo, &cmdBuffer));
if (err) {
return;
}
VkCommandBufferBeginInfo cmdBufferBeginInfo;
memset(&cmdBufferBeginInfo, 0, sizeof(VkCommandBufferBeginInfo));
cmdBufferBeginInfo.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
cmdBufferBeginInfo.pNext = nullptr;
cmdBufferBeginInfo.flags = VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT;
cmdBufferBeginInfo.pInheritanceInfo = nullptr;
GR_VK_CALL_ERRCHECK(interface, BeginCommandBuffer(cmdBuffer, &cmdBufferBeginInfo));
GR_VK_CALL_ERRCHECK(interface, EndCommandBuffer(cmdBuffer));
VkFenceCreateInfo fenceInfo;
VkFence fence;
memset(&fenceInfo, 0, sizeof(VkFenceCreateInfo));
fenceInfo.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO;
err = GR_VK_CALL(interface, CreateFence(device, &fenceInfo, nullptr, &fence));
SkASSERT(!err);
VkPipelineStageFlags waitStages = VK_PIPELINE_STAGE_ALL_COMMANDS_BIT;
VkSubmitInfo submitInfo;
memset(&submitInfo, 0, sizeof(VkSubmitInfo));
submitInfo.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
submitInfo.pNext = nullptr;
submitInfo.waitSemaphoreCount = 1;
VkSemaphore vkSem = semaphore.vkSemaphore();
submitInfo.pWaitSemaphores = &vkSem;
submitInfo.pWaitDstStageMask = &waitStages;
submitInfo.commandBufferCount = 1;
submitInfo.pCommandBuffers = &cmdBuffer;
submitInfo.signalSemaphoreCount = 0;
submitInfo.pSignalSemaphores = nullptr;
GR_VK_CALL_ERRCHECK(interface, QueueSubmit(queue, 1, &submitInfo, fence));
err = GR_VK_CALL(interface, WaitForFences(device, 1, &fence, true, 3000000000));
REPORTER_ASSERT(reporter, err != VK_TIMEOUT);
GR_VK_CALL(interface, DestroyFence(device, fence, nullptr));
GR_VK_CALL(interface, DestroySemaphore(device, vkSem, nullptr));
// If the above test fails the wait semaphore will never be signaled which can cause the
// device to hang when tearing down (even if just tearing down GL). So we Fail here to
// kill things.
if (err == VK_TIMEOUT) {
SK_ABORT("Waiting on semaphore indefinitely");
}
}
#endif
}
void VulkanWindowContext::createBuffers(VkFormat format) {
GrVkFormatToPixelConfig(format, &fPixelConfig);
fGetSwapchainImagesKHR(fBackendContext->fDevice, fSwapchain, &fImageCount, nullptr);
SkASSERT(fImageCount);
fImages = new VkImage[fImageCount];
fGetSwapchainImagesKHR(fBackendContext->fDevice, fSwapchain, &fImageCount, fImages);
// set up initial image layouts and create surfaces
fImageLayouts = new VkImageLayout[fImageCount];
fRenderTargets = new sk_sp<GrRenderTarget>[fImageCount];
fSurfaces = new sk_sp<SkSurface>[fImageCount];
for (uint32_t i = 0; i < fImageCount; ++i) {
fImageLayouts[i] = VK_IMAGE_LAYOUT_UNDEFINED;
GrBackendRenderTargetDesc desc;
GrVkImageInfo info;
info.fImage = fImages[i];
info.fAlloc = VK_NULL_HANDLE;
info.fImageLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
info.fImageTiling = VK_IMAGE_TILING_OPTIMAL;
info.fFormat = format;
info.fLevelCount = 1;
desc.fWidth = fWidth;
desc.fHeight = fHeight;
desc.fConfig = fPixelConfig;
desc.fOrigin = kTopLeft_GrSurfaceOrigin;
desc.fSampleCnt = 0;
desc.fStencilBits = 0;
desc.fRenderTargetHandle = (GrBackendObject) &info;
fRenderTargets[i].reset(fContext->textureProvider()->wrapBackendRenderTarget(desc));
fSurfaces[i] = this->createRenderSurface(fRenderTargets[i], 24);
}
// create the command pool for the command buffers
if (VK_NULL_HANDLE == fCommandPool) {
VkCommandPoolCreateInfo commandPoolInfo;
memset(&commandPoolInfo, 0, sizeof(VkCommandPoolCreateInfo));
commandPoolInfo.sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO;
// this needs to be on the render queue
commandPoolInfo.queueFamilyIndex = fBackendContext->fGraphicsQueueIndex;
commandPoolInfo.flags = VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT;
GR_VK_CALL_ERRCHECK(fBackendContext->fInterface,
CreateCommandPool(fBackendContext->fDevice, &commandPoolInfo,
nullptr, &fCommandPool));
}
// set up the backbuffers
VkSemaphoreCreateInfo semaphoreInfo;
memset(&semaphoreInfo, 0, sizeof(VkSemaphoreCreateInfo));
semaphoreInfo.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO;
semaphoreInfo.pNext = nullptr;
semaphoreInfo.flags = 0;
VkCommandBufferAllocateInfo commandBuffersInfo;
memset(&commandBuffersInfo, 0, sizeof(VkCommandBufferAllocateInfo));
commandBuffersInfo.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO;
commandBuffersInfo.pNext = nullptr;
commandBuffersInfo.commandPool = fCommandPool;
commandBuffersInfo.level = VK_COMMAND_BUFFER_LEVEL_PRIMARY;
commandBuffersInfo.commandBufferCount = 2;
VkFenceCreateInfo fenceInfo;
memset(&fenceInfo, 0, sizeof(VkFenceCreateInfo));
fenceInfo.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO;
fenceInfo.pNext = nullptr;
fenceInfo.flags = VK_FENCE_CREATE_SIGNALED_BIT;
// we create one additional backbuffer structure here, because we want to
// give the command buffers they contain a chance to finish before we cycle back
fBackbuffers = new BackbufferInfo[fImageCount + 1];
for (uint32_t i = 0; i < fImageCount + 1; ++i) {
fBackbuffers[i].fImageIndex = -1;
GR_VK_CALL_ERRCHECK(fBackendContext->fInterface,
CreateSemaphore(fBackendContext->fDevice, &semaphoreInfo,
nullptr, &fBackbuffers[i].fAcquireSemaphore));
GR_VK_CALL_ERRCHECK(fBackendContext->fInterface,
CreateSemaphore(fBackendContext->fDevice, &semaphoreInfo,
nullptr, &fBackbuffers[i].fRenderSemaphore));
GR_VK_CALL_ERRCHECK(fBackendContext->fInterface,
AllocateCommandBuffers(fBackendContext->fDevice, &commandBuffersInfo,
fBackbuffers[i].fTransitionCmdBuffers));
GR_VK_CALL_ERRCHECK(fBackendContext->fInterface,
CreateFence(fBackendContext->fDevice, &fenceInfo, nullptr,
&fBackbuffers[i].fUsageFences[0]));
GR_VK_CALL_ERRCHECK(fBackendContext->fInterface,
CreateFence(fBackendContext->fDevice, &fenceInfo, nullptr,
&fBackbuffers[i].fUsageFences[1]));
}
fCurrentBackbufferIndex = fImageCount;
}
