void TriangleVK::Render(VkCommandBuffer cmd_buf, Camera *pCam)
{
struct DATA
{
XMMATRIX mat;
} *pData;
VkDescriptorBufferInfo constantBuffer;
m_pConstantBufferRing->AllocConstantBuffer(4*4 * sizeof(float), (void**)&pData, &constantBuffer);
pData->mat = pCam->GetView() * pCam->GetProjection();
VkWriteDescriptorSet writes[1];
writes[0] = {};
writes[0].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
writes[0].pNext = NULL;
writes[0].dstSet = m_descriptorSets[0];
writes[0].descriptorCount = 1;
writes[0].descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
writes[0].pBufferInfo = &constantBuffer;
writes[0].dstArrayElement = 0;
writes[0].dstBinding = 0;
vkUpdateDescriptorSets(m_pDevice->GetDevice(), 1, writes, 0, NULL);
const VkDeviceSize offsets[1] = { m_geometry.offset };
vkCmdBindVertexBuffers(cmd_buf, 0, 1, &m_geometry.buffer, offsets);
vkCmdBindPipeline(cmd_buf, VK_PIPELINE_BIND_POINT_GRAPHICS, m_pipeline);
vkCmdBindDescriptorSets(cmd_buf, VK_PIPELINE_BIND_POINT_GRAPHICS, m_pipelineLayout, 0, (uint32_t)m_descriptorSets.size(), m_descriptorSets.data(), 0, NULL);
vkCmdDraw(cmd_buf, 12 * 3, 1, 0, 0);
}
void RHI_CommandList::Draw(unsigned int vertex_count)
{
if (!m_is_recording)
return;
vkCmdDraw(CMD_BUFFER_VK, vertex_count, 1, 0, 0);
}
void UtilityShaderDraw::Draw()
{
BindVertexBuffer();
BindDescriptors();
if (!BindPipeline())
return;
vkCmdDraw(m_command_buffer, m_vertex_count, 1, 0, 0);
}
void VkeDrawCall::initDrawCommands(const uint32_t inCount, const uint32_t inCommandIndex){
VkPipelineLayout layout = m_renderer->getPipelineLayout();
VkPipeline pipeline = m_renderer->getPipeline();
VkDescriptorSet sceneDescriptor = m_renderer->getSceneDescriptorSet();
VkDescriptorSet *textureDescriptors = m_renderer->getTextureDescriptorSets();
VkBuffer sceneIndirectBuffer = m_renderer->getSceneIndirectBuffer();
VulkanDC *dc = VulkanDC::Get();
VulkanDC::Device *device = dc->getDefaultDevice();
VulkanDC::Device::Queue *queue = dc->getDefaultQueue();
VulkanAppContext *ctxt = VulkanAppContext::GetInstance();
vkResetCommandBuffer(m_draw_command[inCommandIndex], 0);
VkCommandBufferBeginInfo cmdBeginInfo = { VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO };
cmdBeginInfo.flags = VK_COMMAND_BUFFER_USAGE_SIMULTANEOUS_USE_BIT;
VKA_CHECK_ERROR(vkBeginCommandBuffer(m_draw_command[inCommandIndex], &cmdBeginInfo), "Could not begin command buffer.\n");
vkCmdBindPipeline(m_draw_command[inCommandIndex], VK_PIPELINE_BIND_POINT_GRAPHICS, pipeline);
VkeVBO *theVBO = ctxt->getVBO();
VkeIBO *theIBO = ctxt->getIBO();
theVBO->bind(&m_draw_command[inCommandIndex]);
theIBO->bind(&m_draw_command[inCommandIndex]);
VkDescriptorSet sets[3] = { sceneDescriptor, textureDescriptors[0], m_transform_descriptor_set };
vkCmdBindDescriptorSets(m_draw_command[inCommandIndex], VK_PIPELINE_BIND_POINT_GRAPHICS, layout, 0, 3, sets, 0, NULL);
vkCmdDrawIndexedIndirect(m_draw_command[inCommandIndex], sceneIndirectBuffer, 0, inCount, sizeof(VkDrawIndexedIndirectCommand));
vkCmdDraw(m_draw_command[inCommandIndex], 1, 1, 0, 0);
vkEndCommandBuffer(m_draw_command[inCommandIndex]);
/*
Lock mutex to update generated call count.
*/
//std::lock_guard<std::mutex> lk(m_renderer->getSecondaryCmdBufferMutex());
/*
Increment the generated call count
*/
m_renderer->incrementDrawCallsGenerated();
}
void UtilityShaderDraw::DrawWithoutVertexBuffer(u32 vertex_count)
{
m_pipeline_info.vertex_format = nullptr;
BindDescriptors();
if (!BindPipeline())
return;
vkCmdDraw(m_command_buffer, vertex_count, 1, 0, 0);
}
void UtilityShaderDraw::DrawWithoutVertexBuffer(VkPrimitiveTopology primitive_topology,
u32 vertex_count)
{
m_pipeline_info.vertex_format = nullptr;
m_pipeline_info.primitive_topology = primitive_topology;
BindDescriptors();
if (!BindPipeline())
return;
vkCmdDraw(m_command_buffer, vertex_count, 1, 0, 0);
}
/**
* Update the command buffers to reflect text changes
*/
void updateCommandBuffers()
{
VkCommandBufferBeginInfo cmdBufInfo = vks::initializers::commandBufferBeginInfo();
VkRenderPassBeginInfo renderPassBeginInfo = vks::initializers::renderPassBeginInfo();
renderPassBeginInfo.renderPass = renderPass;
renderPassBeginInfo.renderArea.extent.width = *frameBufferWidth;
renderPassBeginInfo.renderArea.extent.height = *frameBufferHeight;
// None of the attachments will be cleared
renderPassBeginInfo.clearValueCount = 0;
renderPassBeginInfo.pClearValues = nullptr;
for (size_t i = 0; i < cmdBuffers.size(); ++i)
{
renderPassBeginInfo.framebuffer = *frameBuffers[i];
VK_CHECK_RESULT(vkBeginCommandBuffer(cmdBuffers[i], &cmdBufInfo));
if (vks::debugmarker::active)
{
vks::debugmarker::beginRegion(cmdBuffers[i], "Text overlay", glm::vec4(1.0f, 0.94f, 0.3f, 1.0f));
}
vkCmdBeginRenderPass(cmdBuffers[i], &renderPassBeginInfo, VK_SUBPASS_CONTENTS_INLINE);
VkViewport viewport = vks::initializers::viewport((float)*frameBufferWidth, (float)*frameBufferHeight, 0.0f, 1.0f);
vkCmdSetViewport(cmdBuffers[i], 0, 1, &viewport);
VkRect2D scissor = vks::initializers::rect2D(*frameBufferWidth, *frameBufferHeight, 0, 0);
vkCmdSetScissor(cmdBuffers[i], 0, 1, &scissor);
vkCmdBindPipeline(cmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipeline);
vkCmdBindDescriptorSets(cmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelineLayout, 0, 1, &descriptorSet, 0, NULL);
VkDeviceSize offsets = 0;
vkCmdBindVertexBuffers(cmdBuffers[i], 0, 1, &vertexBuffer.buffer, &offsets);
vkCmdBindVertexBuffers(cmdBuffers[i], 1, 1, &vertexBuffer.buffer, &offsets);
for (uint32_t j = 0; j < numLetters; j++)
{
vkCmdDraw(cmdBuffers[i], 4, 1, j * 4, 0);
}
vkCmdEndRenderPass(cmdBuffers[i]);
if (vks::debugmarker::active)
{
vks::debugmarker::endRegion(cmdBuffers[i]);
}
VK_CHECK_RESULT(vkEndCommandBuffer(cmdBuffers[i]));
}
}
void GraphicsCommandListVulkan::Draw(
std::size_t vertexCount,
std::size_t startVertexLocation)
{
POMDOG_ASSERT(commandBuffer != nullptr);
vkCmdDraw(
commandBuffer,
static_cast<uint32_t>(vertexCount),
0,
static_cast<uint32_t>(startVertexLocation),
0);
}
void GraphicsCommandListVulkan::DrawInstanced(
std::size_t vertexCountPerInstance,
std::size_t instanceCount,
std::size_t startVertexLocation,
std::size_t startInstanceLocation)
{
POMDOG_ASSERT(commandBuffer != nullptr);
vkCmdDraw(
commandBuffer,
static_cast<uint32_t>(vertexCountPerInstance),
static_cast<uint32_t>(instanceCount),
static_cast<uint32_t>(startVertexLocation),
static_cast<uint32_t>(startInstanceLocation));
}
void QeParticle::updateDrawCommandBuffer(QeDataDrawCommand *command) {
if (!isShowByCulling(command->camera)) return;
if (!currentParticlesSize) return;
vkCmdBindDescriptorSets(command->commandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, VK->pipelineLayout, eDescriptorSetLayout_Model,
1, &descriptorSet.set, 0, nullptr);
graphicsPipeline.subpass = 0;
graphicsPipeline.componentType = componentType;
graphicsPipeline.sampleCount = GRAP->sampleCount;
graphicsPipeline.renderPass = command->renderPass;
graphicsPipeline.minorType = eGraphicsPipeLine_none;
graphicsPipeline.shader = &graphicsShader;
VkDeviceSize offsets[] = {0};
vkCmdBindVertexBuffers(command->commandBuffer, 0, 1, &vertexBuffer.buffer, offsets);
vkCmdBindPipeline(command->commandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, VK->createGraphicsPipeline(&graphicsPipeline));
vkCmdDraw(command->commandBuffer, currentParticlesSize, 1, 0, 0);
}
void buildCommandBuffers()
{
// Destroy command buffers if already present
if (!checkCommandBuffers())
{
destroyCommandBuffers();
createCommandBuffers();
}
VkCommandBufferBeginInfo cmdBufInfo = vkTools::initializers::commandBufferBeginInfo();
VkClearValue clearValues[2];
clearValues[0].color = defaultClearColor;
clearValues[1].depthStencil = { 1.0f, 0 };
VkRenderPassBeginInfo renderPassBeginInfo = vkTools::initializers::renderPassBeginInfo();
renderPassBeginInfo.renderPass = renderPass;
renderPassBeginInfo.renderArea.offset.x = 0;
renderPassBeginInfo.renderArea.offset.y = 0;
renderPassBeginInfo.renderArea.extent.width = width;
renderPassBeginInfo.renderArea.extent.height = height;
renderPassBeginInfo.clearValueCount = 2;
renderPassBeginInfo.pClearValues = clearValues;
for (int32_t i = 0; i < drawCmdBuffers.size(); ++i)
{
// Set target frame buffer
renderPassBeginInfo.framebuffer = frameBuffers[i];
VK_CHECK_RESULT(vkBeginCommandBuffer(drawCmdBuffers[i], &cmdBufInfo));
// Compute particle movement
// Add memory barrier to ensure that the (rendering) vertex shader operations have finished
// Required as the compute shader will overwrite the vertex buffer data
VkBufferMemoryBarrier bufferBarrier = vkTools::initializers::bufferMemoryBarrier();
// Vertex shader invocations have finished reading from the buffer
bufferBarrier.srcAccessMask = VK_ACCESS_VERTEX_ATTRIBUTE_READ_BIT;
// Compute shader buffer read and write
bufferBarrier.dstAccessMask = VK_ACCESS_SHADER_WRITE_BIT | VK_ACCESS_SHADER_READ_BIT;
bufferBarrier.buffer = computeStorageBuffer.buffer;
bufferBarrier.size = computeStorageBuffer.descriptor.range;
bufferBarrier.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
bufferBarrier.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
vkCmdPipelineBarrier(
drawCmdBuffers[i],
VK_PIPELINE_STAGE_VERTEX_SHADER_BIT,
VK_PIPELINE_STAGE_COMPUTE_SHADER_BIT,
VK_FLAGS_NONE,
0, nullptr,
1, &bufferBarrier,
0, nullptr);
vkCmdBindPipeline(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_COMPUTE, pipelines.compute);
vkCmdBindDescriptorSets(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_COMPUTE, computePipelineLayout, 0, 1, &computeDescriptorSet, 0, 0);
// Dispatch the compute job
vkCmdDispatch(drawCmdBuffers[i], PARTICLE_COUNT / 16, 1, 1);
// Add memory barrier to ensure that compute shader has finished writing to the buffer
// Without this the (rendering) vertex shader may display incomplete results (partial data from last frame)
// Compute shader has finished writes to the buffer
bufferBarrier.srcAccessMask = VK_ACCESS_SHADER_WRITE_BIT;
// Vertex shader access (attribute binding)
bufferBarrier.dstAccessMask = VK_ACCESS_VERTEX_ATTRIBUTE_READ_BIT;
bufferBarrier.buffer = computeStorageBuffer.buffer;
bufferBarrier.size = computeStorageBuffer.descriptor.range;
bufferBarrier.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
bufferBarrier.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
vkCmdPipelineBarrier(
drawCmdBuffers[i],
VK_PIPELINE_STAGE_COMPUTE_SHADER_BIT,
VK_PIPELINE_STAGE_VERTEX_SHADER_BIT,
VK_FLAGS_NONE,
0, nullptr,
1, &bufferBarrier,
0, nullptr);
// Draw the particle system using the update vertex buffer
vkCmdBeginRenderPass(drawCmdBuffers[i], &renderPassBeginInfo, VK_SUBPASS_CONTENTS_INLINE);
VkViewport viewport = vkTools::initializers::viewport((float)width, (float)height, 0.0f, 1.0f);
vkCmdSetViewport(drawCmdBuffers[i], 0, 1, &viewport);
VkRect2D scissor = vkTools::initializers::rect2D(width, height, 0, 0);
vkCmdSetScissor(drawCmdBuffers[i], 0, 1, &scissor);
vkCmdBindPipeline(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelines.postCompute);
vkCmdBindDescriptorSets(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelineLayout, 0, 1, &descriptorSetPostCompute, 0, NULL);
VkDeviceSize offsets[1] = { 0 };
vkCmdBindVertexBuffers(drawCmdBuffers[i], VERTEX_BUFFER_BIND_ID, 1, &computeStorageBuffer.buffer, offsets);
vkCmdDraw(drawCmdBuffers[i], PARTICLE_COUNT, 1, 0, 0);
vkCmdEndRenderPass(drawCmdBuffers[i]);
VK_CHECK_RESULT(vkEndCommandBuffer(drawCmdBuffers[i]));
}
}
void buildCommandBuffers()
{
VkCommandBufferBeginInfo cmdBufInfo = vks::initializers::commandBufferBeginInfo();
VkClearValue clearValues[2];
VkViewport viewport;
VkRect2D scissor;
VkDeviceSize offsets[1] = { 0 };
for (int32_t i = 0; i < drawCmdBuffers.size(); ++i)
{
VK_CHECK_RESULT(vkBeginCommandBuffer(drawCmdBuffers[i], &cmdBufInfo));
/*
First render pass: Offscreen rendering
*/
{
clearValues[0].color = { { 0.0f, 0.0f, 0.0f, 0.0f } };
clearValues[1].depthStencil = { 1.0f, 0 };
VkRenderPassBeginInfo renderPassBeginInfo = vks::initializers::renderPassBeginInfo();
renderPassBeginInfo.renderPass = offscreenPass.renderPass;
renderPassBeginInfo.framebuffer = offscreenPass.frameBuffer;
renderPassBeginInfo.renderArea.extent.width = offscreenPass.width;
renderPassBeginInfo.renderArea.extent.height = offscreenPass.height;
renderPassBeginInfo.clearValueCount = 2;
renderPassBeginInfo.pClearValues = clearValues;
viewport = vks::initializers::viewport((float)offscreenPass.width, (float)offscreenPass.height, 0.0f, 1.0f);
vkCmdSetViewport(drawCmdBuffers[i], 0, 1, &viewport);
scissor = vks::initializers::rect2D(offscreenPass.width, offscreenPass.height, 0, 0);
vkCmdSetScissor(drawCmdBuffers[i], 0, 1, &scissor);
vkCmdBeginRenderPass(drawCmdBuffers[i], &renderPassBeginInfo, VK_SUBPASS_CONTENTS_INLINE);
vkCmdBindDescriptorSets(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelineLayouts.scene, 0, 1, &descriptorSets.scene, 0, NULL);
vkCmdBindPipeline(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelines.colorPass);
vkCmdBindVertexBuffers(drawCmdBuffers[i], 0, 1, &models.example.vertices.buffer, offsets);
vkCmdBindIndexBuffer(drawCmdBuffers[i], models.example.indices.buffer, 0, VK_INDEX_TYPE_UINT32);
vkCmdDrawIndexed(drawCmdBuffers[i], models.example.indexCount, 1, 0, 0, 0);
vkCmdEndRenderPass(drawCmdBuffers[i]);
}
/*
Note: Explicit synchronization is not required between the render pass, as this is done implicit via sub pass dependencies
*/
/*
Second render pass: Scene rendering with applied radial blur
*/
{
clearValues[0].color = defaultClearColor;
clearValues[1].depthStencil = { 1.0f, 0 };
VkRenderPassBeginInfo renderPassBeginInfo = vks::initializers::renderPassBeginInfo();
renderPassBeginInfo.renderPass = renderPass;
renderPassBeginInfo.framebuffer = frameBuffers[i];
renderPassBeginInfo.renderArea.extent.width = width;
renderPassBeginInfo.renderArea.extent.height = height;
renderPassBeginInfo.clearValueCount = 2;
renderPassBeginInfo.pClearValues = clearValues;
vkCmdBeginRenderPass(drawCmdBuffers[i], &renderPassBeginInfo, VK_SUBPASS_CONTENTS_INLINE);
viewport = vks::initializers::viewport((float)width, (float)height, 0.0f, 1.0f);
vkCmdSetViewport(drawCmdBuffers[i], 0, 1, &viewport);
scissor = vks::initializers::rect2D(width, height, 0, 0);
vkCmdSetScissor(drawCmdBuffers[i], 0, 1, &scissor);
// 3D scene
vkCmdBindDescriptorSets(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelineLayouts.scene, 0, 1, &descriptorSets.scene, 0, NULL);
vkCmdBindPipeline(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelines.phongPass);
vkCmdBindVertexBuffers(drawCmdBuffers[i], 0, 1, &models.example.vertices.buffer, offsets);
vkCmdBindIndexBuffer(drawCmdBuffers[i], models.example.indices.buffer, 0, VK_INDEX_TYPE_UINT32);
vkCmdDrawIndexed(drawCmdBuffers[i], models.example.indexCount, 1, 0, 0, 0);
// Fullscreen triangle (clipped to a quad) with radial blur
if (blur)
{
vkCmdBindDescriptorSets(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelineLayouts.radialBlur, 0, 1, &descriptorSets.radialBlur, 0, NULL);
vkCmdBindPipeline(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, (displayTexture) ? pipelines.offscreenDisplay : pipelines.radialBlur);
vkCmdDraw(drawCmdBuffers[i], 3, 1, 0, 0);
}
drawUI(drawCmdBuffers[i]);
vkCmdEndRenderPass(drawCmdBuffers[i]);
}
VK_CHECK_RESULT(vkEndCommandBuffer(drawCmdBuffers[i]));
}
}
int sample_main(int argc, char *argv[]) {
VkResult U_ASSERT_ONLY res;
struct sample_info info = {};
char sample_title[] = "Simple Push Constants";
const bool depthPresent = true;
process_command_line_args(info, argc, argv);
init_global_layer_properties(info);
init_instance_extension_names(info);
init_device_extension_names(info);
init_instance(info, sample_title);
init_enumerate_device(info);
init_window_size(info, 500, 500);
init_connection(info);
init_window(info);
init_swapchain_extension(info);
init_device(info);
init_command_pool(info);
init_command_buffer(info);
execute_begin_command_buffer(info);
init_device_queue(info);
init_swap_chain(info);
init_depth_buffer(info);
init_uniform_buffer(info);
init_renderpass(info, depthPresent);
init_shaders(info, vertShaderText, fragShaderText);
init_framebuffers(info, depthPresent);
init_vertex_buffer(info, g_vb_texture_Data, sizeof(g_vb_texture_Data), sizeof(g_vb_texture_Data[0]), true);
// Set up one descriptor sets
static const unsigned descriptor_set_count = 1;
static const unsigned resource_count = 1;
// Create binding and layout for the following, matching contents of shader
// binding 0 = uniform buffer (MVP)
VkDescriptorSetLayoutBinding resource_binding[resource_count] = {};
resource_binding[0].descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
resource_binding[0].descriptorCount = 1;
resource_binding[0].stageFlags = VK_SHADER_STAGE_VERTEX_BIT;
resource_binding[0].pImmutableSamplers = NULL;
VkDescriptorSetLayoutCreateInfo resource_layout_info[1] = {};
resource_layout_info[0].sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO;
resource_layout_info[0].pNext = NULL;
resource_layout_info[0].bindingCount = resource_count;
resource_layout_info[0].pBindings = resource_binding;
VkDescriptorSetLayout descriptor_layouts[1] = {};
res = vkCreateDescriptorSetLayout(info.device, resource_layout_info, NULL, &descriptor_layouts[0]);
assert(res == VK_SUCCESS);
/* VULKAN_KEY_START */
// Set up our push constant range, which mirrors the declaration of
const unsigned push_constant_range_count = 1;
VkPushConstantRange push_constant_ranges[push_constant_range_count] = {};
push_constant_ranges[0].stageFlags = VK_SHADER_STAGE_FRAGMENT_BIT;
push_constant_ranges[0].offset = 0;
push_constant_ranges[0].size = 8;
// Create pipeline layout, including push constant info.
// Create pipeline layout with multiple descriptor sets
VkPipelineLayoutCreateInfo pipelineLayoutCreateInfo[1] = {};
pipelineLayoutCreateInfo[0].sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO;
pipelineLayoutCreateInfo[0].pNext = NULL;
pipelineLayoutCreateInfo[0].pushConstantRangeCount = push_constant_range_count;
pipelineLayoutCreateInfo[0].pPushConstantRanges = push_constant_ranges;
pipelineLayoutCreateInfo[0].setLayoutCount = descriptor_set_count;
pipelineLayoutCreateInfo[0].pSetLayouts = descriptor_layouts;
res = vkCreatePipelineLayout(info.device, pipelineLayoutCreateInfo, NULL, &info.pipeline_layout);
assert(res == VK_SUCCESS);
// Create a single pool to contain data for our descriptor set
VkDescriptorPoolSize type_count[2] = {};
type_count[0].type = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
type_count[0].descriptorCount = 1;
type_count[1].type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
type_count[1].descriptorCount = 1;
VkDescriptorPoolCreateInfo pool_info[1] = {};
pool_info[0].sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;
pool_info[0].pNext = NULL;
pool_info[0].maxSets = descriptor_set_count;
pool_info[0].poolSizeCount = sizeof(type_count) / sizeof(VkDescriptorPoolSize);
pool_info[0].pPoolSizes = type_count;
VkDescriptorPool descriptor_pool[1] = {};
res = vkCreateDescriptorPool(info.device, pool_info, NULL, descriptor_pool);
assert(res == VK_SUCCESS);
VkDescriptorSetAllocateInfo alloc_info[1];
alloc_info[0].sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO;
alloc_info[0].pNext = NULL;
alloc_info[0].descriptorPool = descriptor_pool[0];
alloc_info[0].descriptorSetCount = descriptor_set_count;
alloc_info[0].pSetLayouts = descriptor_layouts;
// Populate descriptor sets
VkDescriptorSet descriptor_sets[descriptor_set_count] = {};
res = vkAllocateDescriptorSets(info.device, alloc_info, descriptor_sets);
assert(res == VK_SUCCESS);
// Using empty brace initializer on the next line triggers a bug in older
// versions of gcc, so memset instead
VkWriteDescriptorSet descriptor_writes[resource_count];
memset(descriptor_writes, 0, sizeof(descriptor_writes));
// Populate with info about our uniform buffer for MVP
descriptor_writes[0] = {};
descriptor_writes[0].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
descriptor_writes[0].pNext = NULL;
descriptor_writes[0].dstSet = descriptor_sets[0];
descriptor_writes[0].descriptorCount = 1;
descriptor_writes[0].descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
descriptor_writes[0].pBufferInfo = &info.uniform_data.buffer_info; // populated by init_uniform_buffer()
descriptor_writes[0].dstArrayElement = 0;
descriptor_writes[0].dstBinding = 0;
vkUpdateDescriptorSets(info.device, resource_count, descriptor_writes, 0, NULL);
// Create our push constant data, which matches shader expectations
unsigned pushConstants[2] = {};
pushConstants[0] = (unsigned)2;
pushConstants[1] = (unsigned)0x3F800000;
// Ensure we have enough room for push constant data
if (sizeof(pushConstants) > info.gpu_props.limits.maxPushConstantsSize) assert(0 && "Too many push constants");
vkCmdPushConstants(info.cmd, info.pipeline_layout, VK_SHADER_STAGE_FRAGMENT_BIT, 0, sizeof(pushConstants), pushConstants);
/* VULKAN_KEY_END */
init_pipeline_cache(info);
init_pipeline(info, depthPresent);
init_presentable_image(info);
VkClearValue clear_values[2];
init_clear_color_and_depth(info, clear_values);
VkRenderPassBeginInfo rp_begin;
init_render_pass_begin_info(info, rp_begin);
rp_begin.clearValueCount = 2;
rp_begin.pClearValues = clear_values;
vkCmdBeginRenderPass(info.cmd, &rp_begin, VK_SUBPASS_CONTENTS_INLINE);
vkCmdBindPipeline(info.cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, info.pipeline);
vkCmdBindDescriptorSets(info.cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, info.pipeline_layout, 0, NUM_DESCRIPTOR_SETS,
descriptor_sets, 0, NULL);
const VkDeviceSize offsets[1] = {0};
vkCmdBindVertexBuffers(info.cmd, 0, 1, &info.vertex_buffer.buf, offsets);
init_viewports(info);
init_scissors(info);
vkCmdDraw(info.cmd, 12 * 3, 1, 0, 0);
vkCmdEndRenderPass(info.cmd);
res = vkEndCommandBuffer(info.cmd);
assert(res == VK_SUCCESS);
VkFence drawFence = {};
init_fence(info, drawFence);
VkPipelineStageFlags pipe_stage_flags = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
VkSubmitInfo submit_info = {};
init_submit_info(info, submit_info, pipe_stage_flags);
/* Queue the command buffer for execution */
res = vkQueueSubmit(info.graphics_queue, 1, &submit_info, drawFence);
assert(res == VK_SUCCESS);
/* Now present the image in the window */
VkPresentInfoKHR present = {};
init_present_info(info, present);
/* Make sure command buffer is finished before presenting */
do {
res = vkWaitForFences(info.device, 1, &drawFence, VK_TRUE, FENCE_TIMEOUT);
} while (res == VK_TIMEOUT);
assert(res == VK_SUCCESS);
res = vkQueuePresentKHR(info.present_queue, &present);
assert(res == VK_SUCCESS);
wait_seconds(1);
if (info.save_images) write_ppm(info, "push_constants");
vkDestroyFence(info.device, drawFence, NULL);
vkDestroySemaphore(info.device, info.imageAcquiredSemaphore, NULL);
destroy_pipeline(info);
destroy_pipeline_cache(info);
// instead of destroy_descriptor_pool(info);
vkDestroyDescriptorPool(info.device, descriptor_pool[0], NULL);
destroy_vertex_buffer(info);
destroy_framebuffers(info);
destroy_shaders(info);
destroy_renderpass(info);
// instead of destroy_descriptor_and_pipeline_layouts(info);
for (int i = 0; i < descriptor_set_count; i++) vkDestroyDescriptorSetLayout(info.device, descriptor_layouts[i], NULL);
vkDestroyPipelineLayout(info.device, info.pipeline_layout, NULL);
destroy_uniform_buffer(info);
destroy_depth_buffer(info);
destroy_swap_chain(info);
destroy_command_buffer(info);
destroy_command_pool(info);
destroy_device(info);
destroy_window(info);
destroy_instance(info);
return 0;
}
void buildCommandBuffers()
{
// Destroy command buffers if already present
if (!checkCommandBuffers())
{
destroyCommandBuffers();
createCommandBuffers();
}
VkCommandBufferBeginInfo cmdBufInfo = vkTools::initializers::commandBufferBeginInfo();
VkClearValue clearValues[2];
clearValues[0].color = defaultClearColor;
clearValues[1].depthStencil = { 1.0f, 0 };
VkRenderPassBeginInfo renderPassBeginInfo = vkTools::initializers::renderPassBeginInfo();
renderPassBeginInfo.renderPass = renderPass;
renderPassBeginInfo.renderArea.offset.x = 0;
renderPassBeginInfo.renderArea.offset.y = 0;
renderPassBeginInfo.renderArea.extent.width = width;
renderPassBeginInfo.renderArea.extent.height = height;
renderPassBeginInfo.clearValueCount = 2;
renderPassBeginInfo.pClearValues = clearValues;
VkResult err;
for (int32_t i = 0; i < drawCmdBuffers.size(); ++i)
{
// Set target frame buffer
renderPassBeginInfo.framebuffer = frameBuffers[i];
err = vkBeginCommandBuffer(drawCmdBuffers[i], &cmdBufInfo);
assert(!err);
// Buffer memory barrier to make sure that compute shader
// writes are finished before using the storage buffer
// in the vertex shader
VkBufferMemoryBarrier bufferBarrier = vkTools::initializers::bufferMemoryBarrier();
// Source access : Compute shader buffer write
bufferBarrier.srcAccessMask = VK_ACCESS_SHADER_WRITE_BIT;
// Dest access : Vertex shader access (attribute binding)
bufferBarrier.dstAccessMask = VK_ACCESS_VERTEX_ATTRIBUTE_READ_BIT;
bufferBarrier.buffer = computeStorageBuffer.buffer;
bufferBarrier.offset = 0;
bufferBarrier.size = computeStorageBuffer.descriptor.range;
bufferBarrier.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
bufferBarrier.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
vkCmdPipelineBarrier(
drawCmdBuffers[i],
VK_PIPELINE_STAGE_ALL_COMMANDS_BIT,
VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT,
VK_FLAGS_NONE,
0, nullptr,
1, &bufferBarrier,
0, nullptr);
vkCmdBeginRenderPass(drawCmdBuffers[i], &renderPassBeginInfo, VK_SUBPASS_CONTENTS_INLINE);
VkViewport viewport = vkTools::initializers::viewport(
(float)width,
(float)height,
0.0f,
1.0f
);
vkCmdSetViewport(drawCmdBuffers[i], 0, 1, &viewport);
VkRect2D scissor = vkTools::initializers::rect2D(
width,
height,
0,
0
);
vkCmdSetScissor(drawCmdBuffers[i], 0, 1, &scissor);
vkCmdBindDescriptorSets(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelineLayout, 0, 1, &descriptorSetPostCompute, 0, NULL);
vkCmdBindPipeline(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelines.postCompute);
VkDeviceSize offsets[1] = { 0 };
vkCmdBindVertexBuffers(drawCmdBuffers[i], VERTEX_BUFFER_BIND_ID, 1, &computeStorageBuffer.buffer, offsets);
vkCmdDraw(drawCmdBuffers[i], PARTICLE_COUNT, 1, 0, 0);
vkCmdEndRenderPass(drawCmdBuffers[i]);
err = vkEndCommandBuffer(drawCmdBuffers[i]);
assert(!err);
}
}
void buildCommandBuffers()
{
VkCommandBufferBeginInfo cmdBufInfo = vks::initializers::commandBufferBeginInfo();
VkClearValue clearValues[3];
clearValues[0].color = { { 0.0f, 0.0f, 0.2f, 0.0f } };
clearValues[1].color = { { 0.0f, 0.0f, 0.2f, 0.0f } };
clearValues[2].depthStencil = { 1.0f, 0 };
VkRenderPassBeginInfo renderPassBeginInfo = vks::initializers::renderPassBeginInfo();
renderPassBeginInfo.renderPass = renderPass;
renderPassBeginInfo.renderArea.offset.x = 0;
renderPassBeginInfo.renderArea.offset.y = 0;
renderPassBeginInfo.renderArea.extent.width = width;
renderPassBeginInfo.renderArea.extent.height = height;
renderPassBeginInfo.clearValueCount = 3;
renderPassBeginInfo.pClearValues = clearValues;
for (int32_t i = 0; i < drawCmdBuffers.size(); ++i) {
renderPassBeginInfo.framebuffer = frameBuffers[i];
VK_CHECK_RESULT(vkBeginCommandBuffer(drawCmdBuffers[i], &cmdBufInfo));
vkCmdBeginRenderPass(drawCmdBuffers[i], &renderPassBeginInfo, VK_SUBPASS_CONTENTS_INLINE);
VkViewport viewport = vks::initializers::viewport((float)width, (float)height, 0.0f, 1.0f);
vkCmdSetViewport(drawCmdBuffers[i], 0, 1, &viewport);
VkRect2D scissor = vks::initializers::rect2D(width, height, 0, 0);
vkCmdSetScissor(drawCmdBuffers[i], 0, 1, &scissor);
VkDeviceSize offsets[1] = { 0 };
/*
First sub pass
Fills the attachments
*/
{
vks::debugmarker::beginRegion(drawCmdBuffers[i], "Subpass 0: Writing attachments", glm::vec4(1.0f, 1.0f, 1.0f, 1.0f));
vkCmdBindPipeline(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelines.attachmentWrite);
vkCmdBindDescriptorSets(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelineLayouts.attachmentWrite, 0, 1, &descriptorSets.attachmentWrite, 0, NULL);
vkCmdBindVertexBuffers(drawCmdBuffers[i], 0, 1, &scene.vertices.buffer, offsets);
vkCmdBindIndexBuffer(drawCmdBuffers[i], scene.indices.buffer, 0, VK_INDEX_TYPE_UINT32);
vkCmdDrawIndexed(drawCmdBuffers[i], scene.indexCount, 1, 0, 0, 0);
vks::debugmarker::endRegion(drawCmdBuffers[i]);
}
/*
Second sub pass
Reads from the attachments via input attachments
*/
{
vks::debugmarker::beginRegion(drawCmdBuffers[i], "Subpass 1: Reading attachments", glm::vec4(1.0f, 1.0f, 1.0f, 1.0f));
vkCmdNextSubpass(drawCmdBuffers[i], VK_SUBPASS_CONTENTS_INLINE);
vkCmdBindPipeline(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelines.attachmentRead);
vkCmdBindDescriptorSets(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelineLayouts.attachmentRead, 0, 1, &descriptorSets.attachmentRead, 0, NULL);
vkCmdDraw(drawCmdBuffers[i], 3, 1, 0, 0);
vks::debugmarker::endRegion(drawCmdBuffers[i]);
}
vkCmdEndRenderPass(drawCmdBuffers[i]);
VK_CHECK_RESULT(vkEndCommandBuffer(drawCmdBuffers[i]));
}
}
int sample_main(int argc, char *argv[]) {
VkResult U_ASSERT_ONLY res;
struct sample_info info = {};
char sample_title[] = "Multiple Descriptor Sets";
process_command_line_args(info, argc, argv);
init_global_layer_properties(info);
init_instance_extension_names(info);
init_device_extension_names(info);
init_instance(info, sample_title);
init_enumerate_device(info);
init_window_size(info, 500, 500);
init_connection(info);
init_window(info);
init_swapchain_extension(info);
init_device(info);
init_command_pool(info);
init_command_buffer(info);
execute_begin_command_buffer(info);
init_device_queue(info);
init_swap_chain(info);
init_depth_buffer(info);
// Sample from a green texture to easily see that we've pulled correct texel
// value
const char *textureName = "green.ppm";
init_texture(info, textureName);
init_uniform_buffer(info);
init_renderpass(info, true);
init_shaders(info, vertShaderText, fragShaderText);
init_framebuffers(info, true);
init_vertex_buffer(info, g_vb_texture_Data, sizeof(g_vb_texture_Data), sizeof(g_vb_texture_Data[0]), true);
/* VULKAN_KEY_START */
// Set up two descriptor sets
static const unsigned descriptor_set_count = 2;
// Create first layout to contain uniform buffer data
VkDescriptorSetLayoutBinding uniform_binding[1] = {};
uniform_binding[0].binding = 0;
uniform_binding[0].descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
uniform_binding[0].descriptorCount = 1;
uniform_binding[0].stageFlags = VK_SHADER_STAGE_VERTEX_BIT;
uniform_binding[0].pImmutableSamplers = NULL;
VkDescriptorSetLayoutCreateInfo uniform_layout_info[1] = {};
uniform_layout_info[0].sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO;
uniform_layout_info[0].pNext = NULL;
uniform_layout_info[0].bindingCount = 1;
uniform_layout_info[0].pBindings = uniform_binding;
// Create second layout containing combined sampler/image data
VkDescriptorSetLayoutBinding sampler2D_binding[1] = {};
sampler2D_binding[0].binding = 0;
sampler2D_binding[0].descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
sampler2D_binding[0].descriptorCount = 1;
sampler2D_binding[0].stageFlags = VK_SHADER_STAGE_VERTEX_BIT;
sampler2D_binding[0].pImmutableSamplers = NULL;
VkDescriptorSetLayoutCreateInfo sampler2D_layout_info[1] = {};
sampler2D_layout_info[0].sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO;
sampler2D_layout_info[0].pNext = NULL;
sampler2D_layout_info[0].bindingCount = 1;
sampler2D_layout_info[0].pBindings = sampler2D_binding;
// Create multiple sets, using each createInfo
static const unsigned uniform_set_index = 0;
static const unsigned sampler_set_index = 1;
VkDescriptorSetLayout descriptor_layouts[descriptor_set_count] = {};
res = vkCreateDescriptorSetLayout(info.device, uniform_layout_info, NULL, &descriptor_layouts[uniform_set_index]);
assert(res == VK_SUCCESS);
res = vkCreateDescriptorSetLayout(info.device, sampler2D_layout_info, NULL, &descriptor_layouts[sampler_set_index]);
assert(res == VK_SUCCESS);
// Create pipeline layout with multiple descriptor sets
VkPipelineLayoutCreateInfo pipelineLayoutCreateInfo[1] = {};
pipelineLayoutCreateInfo[0].sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO;
pipelineLayoutCreateInfo[0].pNext = NULL;
pipelineLayoutCreateInfo[0].pushConstantRangeCount = 0;
pipelineLayoutCreateInfo[0].pPushConstantRanges = NULL;
pipelineLayoutCreateInfo[0].setLayoutCount = descriptor_set_count;
pipelineLayoutCreateInfo[0].pSetLayouts = descriptor_layouts;
res = vkCreatePipelineLayout(info.device, pipelineLayoutCreateInfo, NULL, &info.pipeline_layout);
assert(res == VK_SUCCESS);
// Create a single pool to contain data for our two descriptor sets
VkDescriptorPoolSize type_count[2] = {};
type_count[0].type = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
type_count[0].descriptorCount = 1;
type_count[1].type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
type_count[1].descriptorCount = 1;
VkDescriptorPoolCreateInfo pool_info[1] = {};
pool_info[0].sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;
pool_info[0].pNext = NULL;
pool_info[0].maxSets = descriptor_set_count;
pool_info[0].poolSizeCount = sizeof(type_count) / sizeof(VkDescriptorPoolSize);
pool_info[0].pPoolSizes = type_count;
VkDescriptorPool descriptor_pool[1] = {};
res = vkCreateDescriptorPool(info.device, pool_info, NULL, descriptor_pool);
assert(res == VK_SUCCESS);
VkDescriptorSetAllocateInfo alloc_info[1];
alloc_info[0].sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO;
alloc_info[0].pNext = NULL;
alloc_info[0].descriptorPool = descriptor_pool[0];
alloc_info[0].descriptorSetCount = descriptor_set_count;
alloc_info[0].pSetLayouts = descriptor_layouts;
// Populate descriptor sets
VkDescriptorSet descriptor_sets[descriptor_set_count] = {};
res = vkAllocateDescriptorSets(info.device, alloc_info, descriptor_sets);
assert(res == VK_SUCCESS);
// Using empty brace initializer on the next line triggers a bug in older
// versions of gcc, so memset instead
VkWriteDescriptorSet descriptor_writes[2];
memset(descriptor_writes, 0, sizeof(descriptor_writes));
// Populate with info about our uniform buffer
descriptor_writes[0] = {};
descriptor_writes[0].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
descriptor_writes[0].pNext = NULL;
descriptor_writes[0].dstSet = descriptor_sets[uniform_set_index];
descriptor_writes[0].descriptorCount = 1;
descriptor_writes[0].descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
descriptor_writes[0].pBufferInfo = &info.uniform_data.buffer_info; // populated by init_uniform_buffer()
descriptor_writes[0].dstArrayElement = 0;
descriptor_writes[0].dstBinding = 0;
// Populate with info about our sampled image
descriptor_writes[1] = {};
descriptor_writes[1].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
descriptor_writes[1].pNext = NULL;
descriptor_writes[1].dstSet = descriptor_sets[sampler_set_index];
descriptor_writes[1].descriptorCount = 1;
descriptor_writes[1].descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
descriptor_writes[1].pImageInfo = &info.texture_data.image_info; // populated by init_texture()
descriptor_writes[1].dstArrayElement = 0;
descriptor_writes[1].dstBinding = 0;
vkUpdateDescriptorSets(info.device, descriptor_set_count, descriptor_writes, 0, NULL);
/* VULKAN_KEY_END */
// Call remaining boilerplate utils
init_pipeline_cache(info);
init_pipeline(info, true);
// The remaining is identical to drawtexturedcube
VkClearValue clear_values[2];
clear_values[0].color.float32[0] = 0.2f;
clear_values[0].color.float32[1] = 0.2f;
clear_values[0].color.float32[2] = 0.2f;
clear_values[0].color.float32[3] = 0.2f;
clear_values[1].depthStencil.depth = 1.0f;
clear_values[1].depthStencil.stencil = 0;
VkSemaphore imageAcquiredSemaphore;
VkSemaphoreCreateInfo imageAcquiredSemaphoreCreateInfo;
imageAcquiredSemaphoreCreateInfo.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO;
imageAcquiredSemaphoreCreateInfo.pNext = NULL;
imageAcquiredSemaphoreCreateInfo.flags = 0;
res = vkCreateSemaphore(info.device, &imageAcquiredSemaphoreCreateInfo, NULL, &imageAcquiredSemaphore);
assert(res == VK_SUCCESS);
// Get the index of the next available swapchain image:
res = vkAcquireNextImageKHR(info.device, info.swap_chain, UINT64_MAX, imageAcquiredSemaphore, VK_NULL_HANDLE,
&info.current_buffer);
// TODO: Deal with the VK_SUBOPTIMAL_KHR and VK_ERROR_OUT_OF_DATE_KHR
// return codes
assert(res == VK_SUCCESS);
VkRenderPassBeginInfo rp_begin;
rp_begin.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
rp_begin.pNext = NULL;
rp_begin.renderPass = info.render_pass;
rp_begin.framebuffer = info.framebuffers[info.current_buffer];
rp_begin.renderArea.offset.x = 0;
rp_begin.renderArea.offset.y = 0;
rp_begin.renderArea.extent.width = info.width;
rp_begin.renderArea.extent.height = info.height;
rp_begin.clearValueCount = 2;
rp_begin.pClearValues = clear_values;
vkCmdBeginRenderPass(info.cmd, &rp_begin, VK_SUBPASS_CONTENTS_INLINE);
vkCmdBindPipeline(info.cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, info.pipeline);
vkCmdBindDescriptorSets(info.cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, info.pipeline_layout, 0, descriptor_set_count,
descriptor_sets, 0, NULL);
const VkDeviceSize offsets[1] = {0};
vkCmdBindVertexBuffers(info.cmd, 0, 1, &info.vertex_buffer.buf, offsets);
init_viewports(info);
init_scissors(info);
vkCmdDraw(info.cmd, 12 * 3, 1, 0, 0);
vkCmdEndRenderPass(info.cmd);
res = vkEndCommandBuffer(info.cmd);
assert(res == VK_SUCCESS);
const VkCommandBuffer cmd_bufs[] = {info.cmd};
VkFenceCreateInfo fenceInfo;
VkFence drawFence;
fenceInfo.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO;
fenceInfo.pNext = NULL;
fenceInfo.flags = 0;
vkCreateFence(info.device, &fenceInfo, NULL, &drawFence);
VkPipelineStageFlags pipe_stage_flags = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
VkSubmitInfo submit_info[1] = {};
submit_info[0].pNext = NULL;
submit_info[0].sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
submit_info[0].waitSemaphoreCount = 1;
submit_info[0].pWaitSemaphores = &imageAcquiredSemaphore;
submit_info[0].pWaitDstStageMask = &pipe_stage_flags;
submit_info[0].commandBufferCount = 1;
submit_info[0].pCommandBuffers = cmd_bufs;
submit_info[0].signalSemaphoreCount = 0;
submit_info[0].pSignalSemaphores = NULL;
/* Queue the command buffer for execution */
res = vkQueueSubmit(info.graphics_queue, 1, submit_info, drawFence);
assert(res == VK_SUCCESS);
/* Now present the image in the window */
VkPresentInfoKHR present;
present.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR;
present.pNext = NULL;
present.swapchainCount = 1;
present.pSwapchains = &info.swap_chain;
present.pImageIndices = &info.current_buffer;
present.pWaitSemaphores = NULL;
present.waitSemaphoreCount = 0;
present.pResults = NULL;
/* Make sure command buffer is finished before presenting */
do {
res = vkWaitForFences(info.device, 1, &drawFence, VK_TRUE, FENCE_TIMEOUT);
} while (res == VK_TIMEOUT);
assert(res == VK_SUCCESS);
res = vkQueuePresentKHR(info.present_queue, &present);
assert(res == VK_SUCCESS);
wait_seconds(1);
if (info.save_images) write_ppm(info, "multiple_sets");
vkDestroySemaphore(info.device, imageAcquiredSemaphore, NULL);
vkDestroyFence(info.device, drawFence, NULL);
destroy_pipeline(info);
destroy_pipeline_cache(info);
destroy_textures(info);
// instead of destroy_descriptor_pool(info);
vkDestroyDescriptorPool(info.device, descriptor_pool[0], NULL);
destroy_vertex_buffer(info);
destroy_framebuffers(info);
destroy_shaders(info);
destroy_renderpass(info);
// instead of destroy_descriptor_and_pipeline_layouts(info);
for (int i = 0; i < descriptor_set_count; i++) vkDestroyDescriptorSetLayout(info.device, descriptor_layouts[i], NULL);
vkDestroyPipelineLayout(info.device, info.pipeline_layout, NULL);
destroy_uniform_buffer(info);
destroy_depth_buffer(info);
destroy_swap_chain(info);
destroy_command_buffer(info);
destroy_command_pool(info);
destroy_device(info);
destroy_window(info);
destroy_instance(info);
return 0;
}
int sample_main(int argc, char *argv[]) {
VkResult U_ASSERT_ONLY res;
bool U_ASSERT_ONLY pass;
struct sample_info info = {};
char sample_title[] = "Draw Cube";
const bool depthPresent = true;
process_command_line_args(info, argc, argv);
init_global_layer_properties(info);
init_instance_extension_names(info);
init_device_extension_names(info);
init_instance(info, sample_title);
init_enumerate_device(info);
if (info.gpu_props.limits.maxDescriptorSetUniformBuffersDynamic < 1) {
std::cout << "No dynamic uniform buffers supported\n";
exit(-1);
}
init_window_size(info, 500, 500);
init_connection(info);
init_window(info);
init_swapchain_extension(info);
init_device(info);
init_command_pool(info);
init_command_buffer(info);
execute_begin_command_buffer(info);
init_device_queue(info);
init_swap_chain(info);
init_depth_buffer(info);
init_renderpass(info, depthPresent);
init_shaders(info, vertShaderText, fragShaderText);
init_framebuffers(info, depthPresent);
init_vertex_buffer(info, g_vb_solid_face_colors_Data,
sizeof(g_vb_solid_face_colors_Data),
sizeof(g_vb_solid_face_colors_Data[0]), false);
/* Set up uniform buffer with 2 transform matrices in it */
info.Projection = glm::perspective(glm::radians(45.0f), 1.0f, 0.1f, 100.0f);
info.View = glm::lookAt(
glm::vec3(0, 3, 10), // Camera is at (0,3,10), in World Space
glm::vec3(0, 0, 0), // and looks at the origin
glm::vec3(0, -1, 0) // Head is up (set to 0,-1,0 to look upside-down)
);
info.Model = glm::mat4(1.0f);
// Vulkan clip space has inverted Y and half Z.
info.Clip = glm::mat4(1.0f, 0.0f, 0.0f, 0.0f,
0.0f, -1.0f, 0.0f, 0.0f,
0.0f, 0.0f, 0.5f, 0.0f,
0.0f, 0.0f, 0.5f, 1.0f);
info.MVP = info.Clip * info.Projection * info.View * info.Model;
/* VULKAN_KEY_START */
info.Model = glm::translate(info.Model, glm::vec3(1.5, 1.5, 1.5));
glm::mat4 MVP2 = info.Clip * info.Projection * info.View * info.Model;
VkDeviceSize buf_size = sizeof(info.MVP);
if (info.gpu_props.limits.minUniformBufferOffsetAlignment)
buf_size = (buf_size +
info.gpu_props.limits.minUniformBufferOffsetAlignment - 1) &
~(info.gpu_props.limits.minUniformBufferOffsetAlignment - 1);
VkBufferCreateInfo buf_info = {};
buf_info.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO;
buf_info.pNext = NULL;
buf_info.usage = VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT;
buf_info.size = 2 * buf_size;
buf_info.queueFamilyIndexCount = 0;
buf_info.pQueueFamilyIndices = NULL;
buf_info.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
buf_info.flags = 0;
res = vkCreateBuffer(info.device, &buf_info, NULL, &info.uniform_data.buf);
assert(res == VK_SUCCESS);
VkMemoryRequirements mem_reqs;
vkGetBufferMemoryRequirements(info.device, info.uniform_data.buf,
&mem_reqs);
VkMemoryAllocateInfo alloc_info = {};
alloc_info.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
alloc_info.pNext = NULL;
alloc_info.memoryTypeIndex = 0;
alloc_info.allocationSize = mem_reqs.size;
pass = memory_type_from_properties(info, mem_reqs.memoryTypeBits,
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT,
&alloc_info.memoryTypeIndex);
assert(pass);
res = vkAllocateMemory(info.device, &alloc_info, NULL,
&(info.uniform_data.mem));
assert(res == VK_SUCCESS);
/* Map the buffer memory and copy both matrices */
uint8_t *pData;
res = vkMapMemory(info.device, info.uniform_data.mem, 0, mem_reqs.size, 0,
(void **)&pData);
assert(res == VK_SUCCESS);
memcpy(pData, &info.MVP, sizeof(info.MVP));
pData += buf_size;
memcpy(pData, &MVP2, sizeof(MVP2));
vkUnmapMemory(info.device, info.uniform_data.mem);
res = vkBindBufferMemory(info.device, info.uniform_data.buf,
info.uniform_data.mem, 0);
assert(res == VK_SUCCESS);
info.uniform_data.buffer_info.buffer = info.uniform_data.buf;
info.uniform_data.buffer_info.offset = 0;
info.uniform_data.buffer_info.range = buf_size;
/* Init desciptor and pipeline layouts - descriptor type is
* UNIFORM_BUFFER_DYNAMIC */
VkDescriptorSetLayoutBinding layout_bindings[2];
layout_bindings[0].binding = 0;
layout_bindings[0].descriptorType =
VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC;
layout_bindings[0].descriptorCount = 1;
layout_bindings[0].stageFlags = VK_SHADER_STAGE_VERTEX_BIT;
layout_bindings[0].pImmutableSamplers = NULL;
/* Next take layout bindings and use them to create a descriptor set layout
*/
VkDescriptorSetLayoutCreateInfo descriptor_layout = {};
descriptor_layout.sType =
VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO;
descriptor_layout.pNext = NULL;
descriptor_layout.bindingCount = 1;
descriptor_layout.pBindings = layout_bindings;
info.desc_layout.resize(NUM_DESCRIPTOR_SETS);
res = vkCreateDescriptorSetLayout(info.device, &descriptor_layout, NULL,
info.desc_layout.data());
assert(res == VK_SUCCESS);
/* Now use the descriptor layout to create a pipeline layout */
VkPipelineLayoutCreateInfo pPipelineLayoutCreateInfo = {};
pPipelineLayoutCreateInfo.sType =
VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO;
pPipelineLayoutCreateInfo.pNext = NULL;
pPipelineLayoutCreateInfo.pushConstantRangeCount = 0;
pPipelineLayoutCreateInfo.pPushConstantRanges = NULL;
pPipelineLayoutCreateInfo.setLayoutCount = NUM_DESCRIPTOR_SETS;
pPipelineLayoutCreateInfo.pSetLayouts = info.desc_layout.data();
res = vkCreatePipelineLayout(info.device, &pPipelineLayoutCreateInfo, NULL,
&info.pipeline_layout);
assert(res == VK_SUCCESS);
/* Create descriptor pool with UNIFOM_BUFFER_DYNAMIC type */
VkDescriptorPoolSize type_count[1];
type_count[0].type = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC;
type_count[0].descriptorCount = 1;
VkDescriptorPoolCreateInfo descriptor_pool = {};
descriptor_pool.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;
descriptor_pool.pNext = NULL;
descriptor_pool.maxSets = 1;
descriptor_pool.poolSizeCount = 1;
descriptor_pool.pPoolSizes = type_count;
res = vkCreateDescriptorPool(info.device, &descriptor_pool, NULL,
&info.desc_pool);
assert(res == VK_SUCCESS);
VkDescriptorSetAllocateInfo desc_alloc_info[1];
desc_alloc_info[0].sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO;
desc_alloc_info[0].pNext = NULL;
desc_alloc_info[0].descriptorPool = info.desc_pool;
desc_alloc_info[0].descriptorSetCount = NUM_DESCRIPTOR_SETS;
desc_alloc_info[0].pSetLayouts = info.desc_layout.data();
/* Allocate descriptor set with UNIFORM_BUFFER_DYNAMIC */
info.desc_set.resize(NUM_DESCRIPTOR_SETS);
res = vkAllocateDescriptorSets(info.device, desc_alloc_info,
info.desc_set.data());
assert(res == VK_SUCCESS);
VkWriteDescriptorSet writes[1];
writes[0] = {};
writes[0].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
writes[0].pNext = NULL;
writes[0].dstSet = info.desc_set[0];
writes[0].descriptorCount = 1;
writes[0].descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC;
writes[0].pBufferInfo = &info.uniform_data.buffer_info;
writes[0].dstArrayElement = 0;
writes[0].dstBinding = 0;
vkUpdateDescriptorSets(info.device, 1, writes, 0, NULL);
init_pipeline_cache(info);
init_pipeline(info, depthPresent);
VkClearValue clear_values[2];
clear_values[0].color.float32[0] = 0.2f;
clear_values[0].color.float32[1] = 0.2f;
clear_values[0].color.float32[2] = 0.2f;
clear_values[0].color.float32[3] = 0.2f;
clear_values[1].depthStencil.depth = 1.0f;
clear_values[1].depthStencil.stencil = 0;
VkSemaphore presentCompleteSemaphore;
VkSemaphoreCreateInfo presentCompleteSemaphoreCreateInfo;
presentCompleteSemaphoreCreateInfo.sType =
VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO;
presentCompleteSemaphoreCreateInfo.pNext = NULL;
presentCompleteSemaphoreCreateInfo.flags = 0;
res = vkCreateSemaphore(info.device, &presentCompleteSemaphoreCreateInfo,
NULL, &presentCompleteSemaphore);
assert(res == VK_SUCCESS);
// Get the index of the next available swapchain image:
res = vkAcquireNextImageKHR(info.device, info.swap_chain, UINT64_MAX,
presentCompleteSemaphore, VK_NULL_HANDLE,
&info.current_buffer);
// TODO: Deal with the VK_SUBOPTIMAL_KHR and VK_ERROR_OUT_OF_DATE_KHR
// return codes
assert(res == VK_SUCCESS);
VkRenderPassBeginInfo rp_begin;
rp_begin.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
rp_begin.pNext = NULL;
rp_begin.renderPass = info.render_pass;
rp_begin.framebuffer = info.framebuffers[info.current_buffer];
rp_begin.renderArea.offset.x = 0;
rp_begin.renderArea.offset.y = 0;
rp_begin.renderArea.extent.width = info.width;
rp_begin.renderArea.extent.height = info.height;
rp_begin.clearValueCount = 2;
rp_begin.pClearValues = clear_values;
vkCmdBeginRenderPass(info.cmd, &rp_begin, VK_SUBPASS_CONTENTS_INLINE);
vkCmdBindPipeline(info.cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, info.pipeline);
/* The first draw should use the first matrix in the buffer */
uint32_t uni_offsets[1] = {0};
vkCmdBindDescriptorSets(info.cmd, VK_PIPELINE_BIND_POINT_GRAPHICS,
info.pipeline_layout, 0, NUM_DESCRIPTOR_SETS,
info.desc_set.data(), 1, uni_offsets);
const VkDeviceSize vtx_offsets[1] = {0};
vkCmdBindVertexBuffers(info.cmd, 0, 1, &info.vertex_buffer.buf,
vtx_offsets);
init_viewports(info);
init_scissors(info);
vkCmdDraw(info.cmd, 12 * 3, 1, 0, 0);
uni_offsets[0] = (uint32_t)buf_size; /* The second draw should use the
second matrix in the buffer */
vkCmdBindDescriptorSets(info.cmd, VK_PIPELINE_BIND_POINT_GRAPHICS,
info.pipeline_layout, 0, NUM_DESCRIPTOR_SETS,
info.desc_set.data(), 1, uni_offsets);
vkCmdDraw(info.cmd, 12 * 3, 1, 0, 0);
vkCmdEndRenderPass(info.cmd);
VkImageMemoryBarrier prePresentBarrier = {};
prePresentBarrier.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
prePresentBarrier.pNext = NULL;
prePresentBarrier.srcAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
prePresentBarrier.dstAccessMask = VK_ACCESS_MEMORY_READ_BIT;
prePresentBarrier.oldLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
prePresentBarrier.newLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
prePresentBarrier.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
prePresentBarrier.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
prePresentBarrier.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
prePresentBarrier.subresourceRange.baseMipLevel = 0;
prePresentBarrier.subresourceRange.levelCount = 1;
prePresentBarrier.subresourceRange.baseArrayLayer = 0;
prePresentBarrier.subresourceRange.layerCount = 1;
prePresentBarrier.image = info.buffers[info.current_buffer].image;
vkCmdPipelineBarrier(info.cmd, VK_PIPELINE_STAGE_ALL_COMMANDS_BIT,
VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT, 0, 0, NULL, 0,
NULL, 1, &prePresentBarrier);
res = vkEndCommandBuffer(info.cmd);
const VkCommandBuffer cmd_bufs[] = {info.cmd};
VkFenceCreateInfo fenceInfo;
VkFence drawFence;
fenceInfo.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO;
fenceInfo.pNext = NULL;
fenceInfo.flags = 0;
vkCreateFence(info.device, &fenceInfo, NULL, &drawFence);
VkPipelineStageFlags pipe_stage_flags =
VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
VkSubmitInfo submit_info[1] = {};
submit_info[0].pNext = NULL;
submit_info[0].sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
submit_info[0].waitSemaphoreCount = 1;
submit_info[0].pWaitSemaphores = &presentCompleteSemaphore;
submit_info[0].pWaitDstStageMask = &pipe_stage_flags;
submit_info[0].commandBufferCount = 1;
submit_info[0].pCommandBuffers = cmd_bufs;
submit_info[0].signalSemaphoreCount = 0;
submit_info[0].pSignalSemaphores = NULL;
/* Queue the command buffer for execution */
res = vkQueueSubmit(info.queue, 1, submit_info, drawFence);
assert(res == VK_SUCCESS);
/* Now present the image in the window */
VkPresentInfoKHR present;
present.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR;
present.pNext = NULL;
present.swapchainCount = 1;
present.pSwapchains = &info.swap_chain;
present.pImageIndices = &info.current_buffer;
present.pWaitSemaphores = NULL;
present.waitSemaphoreCount = 0;
present.pResults = NULL;
/* Make sure command buffer is finished before presenting */
do {
res =
vkWaitForFences(info.device, 1, &drawFence, VK_TRUE, FENCE_TIMEOUT);
} while (res == VK_TIMEOUT);
assert(res == VK_SUCCESS);
res = vkQueuePresentKHR(info.queue, &present);
assert(res == VK_SUCCESS);
wait_seconds(1);
/* VULKAN_KEY_END */
if (info.save_images)
write_ppm(info, "dynamicuniform");
vkDestroySemaphore(info.device, presentCompleteSemaphore, NULL);
vkDestroyFence(info.device, drawFence, NULL);
destroy_pipeline(info);
destroy_pipeline_cache(info);
destroy_descriptor_pool(info);
destroy_vertex_buffer(info);
destroy_framebuffers(info);
destroy_shaders(info);
destroy_renderpass(info);
destroy_descriptor_and_pipeline_layouts(info);
destroy_uniform_buffer(info);
destroy_depth_buffer(info);
destroy_swap_chain(info);
destroy_command_buffer(info);
destroy_command_pool(info);
destroy_device(info);
destroy_window(info);
destroy_instance(info);
return 0;
}
int sample_main(int argc, char *argv[]) {
VkResult U_ASSERT_ONLY res;
struct sample_info info = {};
char sample_title[] = "Draw Textured Cube";
const bool depthPresent = true;
process_command_line_args(info, argc, argv);
init_global_layer_properties(info);
init_instance_extension_names(info);
init_device_extension_names(info);
init_instance(info, sample_title);
init_enumerate_device(info);
init_window_size(info, 500, 500);
init_connection(info);
init_window(info);
init_swapchain_extension(info);
init_device(info);
init_command_pool(info);
init_command_buffer(info);
execute_begin_command_buffer(info);
init_device_queue(info);
init_swap_chain(info);
init_depth_buffer(info);
init_texture(info);
init_uniform_buffer(info);
init_descriptor_and_pipeline_layouts(info, true);
init_renderpass(info, depthPresent);
init_shaders(info, vertShaderText, fragShaderText);
init_framebuffers(info, depthPresent);
init_vertex_buffer(info, g_vb_texture_Data, sizeof(g_vb_texture_Data),
sizeof(g_vb_texture_Data[0]), true);
init_descriptor_pool(info, true);
init_descriptor_set(info, true);
init_pipeline_cache(info);
init_pipeline(info, depthPresent);
/* VULKAN_KEY_START */
VkClearValue clear_values[2];
clear_values[0].color.float32[0] = 0.2f;
clear_values[0].color.float32[1] = 0.2f;
clear_values[0].color.float32[2] = 0.2f;
clear_values[0].color.float32[3] = 0.2f;
clear_values[1].depthStencil.depth = 1.0f;
clear_values[1].depthStencil.stencil = 0;
VkSemaphore presentCompleteSemaphore;
VkSemaphoreCreateInfo presentCompleteSemaphoreCreateInfo;
presentCompleteSemaphoreCreateInfo.sType =
VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO;
presentCompleteSemaphoreCreateInfo.pNext = NULL;
presentCompleteSemaphoreCreateInfo.flags = 0;
res = vkCreateSemaphore(info.device, &presentCompleteSemaphoreCreateInfo,
NULL, &presentCompleteSemaphore);
assert(res == VK_SUCCESS);
// Get the index of the next available swapchain image:
res = vkAcquireNextImageKHR(info.device, info.swap_chain, UINT64_MAX,
presentCompleteSemaphore, VK_NULL_HANDLE,
&info.current_buffer);
// TODO: Deal with the VK_SUBOPTIMAL_KHR and VK_ERROR_OUT_OF_DATE_KHR
// return codes
assert(res == VK_SUCCESS);
set_image_layout(info, info.buffers[info.current_buffer].image,
VK_IMAGE_ASPECT_COLOR_BIT, VK_IMAGE_LAYOUT_UNDEFINED,
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL);
VkRenderPassBeginInfo rp_begin;
rp_begin.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
rp_begin.pNext = NULL;
rp_begin.renderPass = info.render_pass;
rp_begin.framebuffer = info.framebuffers[info.current_buffer];
rp_begin.renderArea.offset.x = 0;
rp_begin.renderArea.offset.y = 0;
rp_begin.renderArea.extent.width = info.width;
rp_begin.renderArea.extent.height = info.height;
rp_begin.clearValueCount = 2;
rp_begin.pClearValues = clear_values;
vkCmdBeginRenderPass(info.cmd, &rp_begin, VK_SUBPASS_CONTENTS_INLINE);
vkCmdBindPipeline(info.cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, info.pipeline);
vkCmdBindDescriptorSets(info.cmd, VK_PIPELINE_BIND_POINT_GRAPHICS,
info.pipeline_layout, 0, NUM_DESCRIPTOR_SETS,
info.desc_set.data(), 0, NULL);
const VkDeviceSize offsets[1] = {0};
vkCmdBindVertexBuffers(info.cmd, 0, 1, &info.vertex_buffer.buf, offsets);
init_viewports(info);
init_scissors(info);
vkCmdDraw(info.cmd, 12 * 3, 1, 0, 0);
vkCmdEndRenderPass(info.cmd);
VkImageMemoryBarrier prePresentBarrier = {};
prePresentBarrier.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
prePresentBarrier.pNext = NULL;
prePresentBarrier.srcAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
prePresentBarrier.dstAccessMask = VK_ACCESS_MEMORY_READ_BIT;
prePresentBarrier.oldLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
prePresentBarrier.newLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
prePresentBarrier.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
prePresentBarrier.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
prePresentBarrier.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
prePresentBarrier.subresourceRange.baseMipLevel = 0;
prePresentBarrier.subresourceRange.levelCount = 1;
prePresentBarrier.subresourceRange.baseArrayLayer = 0;
prePresentBarrier.subresourceRange.layerCount = 1;
prePresentBarrier.image = info.buffers[info.current_buffer].image;
vkCmdPipelineBarrier(info.cmd, VK_PIPELINE_STAGE_ALL_COMMANDS_BIT,
VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT, 0, 0, NULL, 0,
NULL, 1, &prePresentBarrier);
res = vkEndCommandBuffer(info.cmd);
assert(res == VK_SUCCESS);
const VkCommandBuffer cmd_bufs[] = {info.cmd};
VkFenceCreateInfo fenceInfo;
VkFence drawFence;
fenceInfo.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO;
fenceInfo.pNext = NULL;
fenceInfo.flags = 0;
vkCreateFence(info.device, &fenceInfo, NULL, &drawFence);
VkPipelineStageFlags pipe_stage_flags =
VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
VkSubmitInfo submit_info[1] = {};
submit_info[0].pNext = NULL;
submit_info[0].sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
submit_info[0].waitSemaphoreCount = 1;
submit_info[0].pWaitSemaphores = &presentCompleteSemaphore;
submit_info[0].pWaitDstStageMask = &pipe_stage_flags;
submit_info[0].commandBufferCount = 1;
submit_info[0].pCommandBuffers = cmd_bufs;
submit_info[0].signalSemaphoreCount = 0;
submit_info[0].pSignalSemaphores = NULL;
/* Queue the command buffer for execution */
res = vkQueueSubmit(info.queue, 1, submit_info, drawFence);
assert(res == VK_SUCCESS);
/* Now present the image in the window */
VkPresentInfoKHR present;
present.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR;
present.pNext = NULL;
present.swapchainCount = 1;
present.pSwapchains = &info.swap_chain;
present.pImageIndices = &info.current_buffer;
present.pWaitSemaphores = NULL;
present.waitSemaphoreCount = 0;
present.pResults = NULL;
/* Make sure command buffer is finished before presenting */
do {
res =
vkWaitForFences(info.device, 1, &drawFence, VK_TRUE, FENCE_TIMEOUT);
} while (res == VK_TIMEOUT);
assert(res == VK_SUCCESS);
res = vkQueuePresentKHR(info.queue, &present);
assert(res == VK_SUCCESS);
wait_seconds(1);
/* VULKAN_KEY_END */
if (info.save_images)
write_ppm(info, "drawtexturedcube");
vkDestroyFence(info.device, drawFence, NULL);
vkDestroySemaphore(info.device, presentCompleteSemaphore, NULL);
destroy_pipeline(info);
destroy_pipeline_cache(info);
destroy_textures(info);
destroy_descriptor_pool(info);
destroy_vertex_buffer(info);
destroy_framebuffers(info);
destroy_shaders(info);
destroy_renderpass(info);
destroy_descriptor_and_pipeline_layouts(info);
destroy_uniform_buffer(info);
destroy_depth_buffer(info);
destroy_swap_chain(info);
destroy_command_buffer(info);
destroy_command_pool(info);
destroy_device(info);
destroy_window(info);
destroy_instance(info);
return 0;
}
int main(int argc, char *argv[]) {
VkResult U_ASSERT_ONLY res;
bool U_ASSERT_ONLY pass;
struct sample_info info = {};
char sample_title[] = "Draw Cube";
process_command_line_args(info, argc, argv);
init_global_layer_properties(info);
info.instance_extension_names.push_back(VK_KHR_SURFACE_EXTENSION_NAME);
#ifdef _WIN32
info.instance_extension_names.push_back(
VK_KHR_WIN32_SURFACE_EXTENSION_NAME);
#else
info.instance_extension_names.push_back(VK_KHR_XCB_SURFACE_EXTENSION_NAME);
#endif
info.device_extension_names.push_back(VK_KHR_SWAPCHAIN_EXTENSION_NAME);
init_instance(info, sample_title);
init_enumerate_device(info);
init_window_size(info, 500, 500);
init_connection(info);
init_window(info);
init_swapchain_extension(info);
init_device(info);
init_command_pool(info);
init_command_buffer(info);
execute_begin_command_buffer(info);
init_device_queue(info);
init_swap_chain(info);
init_depth_buffer(info);
init_uniform_buffer(info);
init_descriptor_and_pipeline_layouts(info, false);
init_renderpass(info, DEPTH_PRESENT);
init_shaders(info, vertShaderText, fragShaderText);
init_framebuffers(info, DEPTH_PRESENT);
init_vertex_buffer(info, g_vb_solid_face_colors_Data,
sizeof(g_vb_solid_face_colors_Data),
sizeof(g_vb_solid_face_colors_Data[0]), false);
init_descriptor_pool(info, false);
init_descriptor_set(info, false);
init_pipeline_cache(info);
init_pipeline(info, DEPTH_PRESENT);
/* VULKAN_KEY_START */
VkClearValue clear_values[2];
clear_values[0].color.float32[0] = 0.2f;
clear_values[0].color.float32[1] = 0.2f;
clear_values[0].color.float32[2] = 0.2f;
clear_values[0].color.float32[3] = 0.2f;
clear_values[1].depthStencil.depth = 1.0f;
clear_values[1].depthStencil.stencil = 0;
VkSemaphore presentCompleteSemaphore;
VkSemaphoreCreateInfo presentCompleteSemaphoreCreateInfo;
presentCompleteSemaphoreCreateInfo.sType =
VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO;
presentCompleteSemaphoreCreateInfo.pNext = NULL;
presentCompleteSemaphoreCreateInfo.flags = VK_FENCE_CREATE_SIGNALED_BIT;
res = vkCreateSemaphore(info.device, &presentCompleteSemaphoreCreateInfo,
NULL, &presentCompleteSemaphore);
assert(res == VK_SUCCESS);
// Get the index of the next available swapchain image:
res = vkAcquireNextImageKHR(info.device, info.swap_chain, UINT64_MAX,
presentCompleteSemaphore, NULL,
&info.current_buffer);
// TODO: Deal with the VK_SUBOPTIMAL_KHR and VK_ERROR_OUT_OF_DATE_KHR
// return codes
assert(res == VK_SUCCESS);
/* Allocate a uniform buffer that will take query results. */
VkBuffer query_result_buf;
VkDeviceMemory query_result_mem;
VkBufferCreateInfo buf_info = {};
buf_info.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO;
buf_info.pNext = NULL;
buf_info.usage =
VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT;
buf_info.size = 4 * sizeof(uint64_t);
buf_info.queueFamilyIndexCount = 0;
buf_info.pQueueFamilyIndices = NULL;
buf_info.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
buf_info.flags = 0;
res = vkCreateBuffer(info.device, &buf_info, NULL, &query_result_buf);
assert(res == VK_SUCCESS);
VkMemoryRequirements mem_reqs;
vkGetBufferMemoryRequirements(info.device, query_result_buf, &mem_reqs);
VkMemoryAllocateInfo alloc_info = {};
alloc_info.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
alloc_info.pNext = NULL;
alloc_info.memoryTypeIndex = 0;
alloc_info.allocationSize = mem_reqs.size;
pass = memory_type_from_properties(info, mem_reqs.memoryTypeBits,
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT,
&alloc_info.memoryTypeIndex);
assert(pass);
res = vkAllocateMemory(info.device, &alloc_info, NULL, &query_result_mem);
assert(res == VK_SUCCESS);
res =
vkBindBufferMemory(info.device, query_result_buf, query_result_mem, 0);
assert(res == VK_SUCCESS);
VkQueryPool query_pool;
VkQueryPoolCreateInfo query_pool_info;
query_pool_info.sType = VK_STRUCTURE_TYPE_QUERY_POOL_CREATE_INFO;
query_pool_info.pNext = NULL;
query_pool_info.queryType = VK_QUERY_TYPE_OCCLUSION;
query_pool_info.flags = 0;
query_pool_info.queryCount = 2;
query_pool_info.pipelineStatistics = 0;
res = vkCreateQueryPool(info.device, &query_pool_info, NULL, &query_pool);
assert(res == VK_SUCCESS);
vkCmdResetQueryPool(info.cmd, query_pool, 0 /*startQuery*/,
2 /*queryCount*/);
VkRenderPassBeginInfo rp_begin;
rp_begin.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
rp_begin.pNext = NULL;
rp_begin.renderPass = info.render_pass;
rp_begin.framebuffer = info.framebuffers[info.current_buffer];
rp_begin.renderArea.offset.x = 0;
rp_begin.renderArea.offset.y = 0;
rp_begin.renderArea.extent.width = info.width;
rp_begin.renderArea.extent.height = info.height;
rp_begin.clearValueCount = 2;
rp_begin.pClearValues = clear_values;
vkCmdBeginRenderPass(info.cmd, &rp_begin, VK_SUBPASS_CONTENTS_INLINE);
vkCmdBindPipeline(info.cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, info.pipeline);
vkCmdBindDescriptorSets(info.cmd, VK_PIPELINE_BIND_POINT_GRAPHICS,
info.pipeline_layout, 0, NUM_DESCRIPTOR_SETS,
info.desc_set.data(), 0, NULL);
const VkDeviceSize offsets[1] = {0};
vkCmdBindVertexBuffers(info.cmd, 0, 1, &info.vertex_buffer.buf, offsets);
VkViewport viewport;
viewport.height = (float)info.height;
viewport.width = (float)info.width;
viewport.minDepth = (float)0.0f;
viewport.maxDepth = (float)1.0f;
viewport.x = 0;
viewport.y = 0;
vkCmdSetViewport(info.cmd, 0, NUM_VIEWPORTS, &viewport);
VkRect2D scissor;
scissor.extent.width = info.width;
scissor.extent.height = info.height;
scissor.offset.x = 0;
scissor.offset.y = 0;
vkCmdSetScissor(info.cmd, 0, NUM_SCISSORS, &scissor);
vkCmdBeginQuery(info.cmd, query_pool, 0 /*slot*/, 0 /*flags*/);
vkCmdEndQuery(info.cmd, query_pool, 0 /*slot*/);
vkCmdBeginQuery(info.cmd, query_pool, 1 /*slot*/, 0 /*flags*/);
vkCmdDraw(info.cmd, 12 * 3, 1, 0, 0);
vkCmdEndRenderPass(info.cmd);
vkCmdEndQuery(info.cmd, query_pool, 1 /*slot*/);
vkCmdCopyQueryPoolResults(
info.cmd, query_pool, 0 /*firstQuery*/, 2 /*queryCount*/,
query_result_buf, 0 /*dstOffset*/, sizeof(uint64_t) /*stride*/,
VK_QUERY_RESULT_64_BIT | VK_QUERY_RESULT_WAIT_BIT);
VkImageMemoryBarrier prePresentBarrier = {};
prePresentBarrier.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
prePresentBarrier.pNext = NULL;
prePresentBarrier.srcAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
prePresentBarrier.dstAccessMask = 0;
prePresentBarrier.oldLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
prePresentBarrier.newLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
prePresentBarrier.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
prePresentBarrier.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
prePresentBarrier.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
prePresentBarrier.subresourceRange.baseMipLevel = 0;
prePresentBarrier.subresourceRange.levelCount = 1;
prePresentBarrier.subresourceRange.baseArrayLayer = 0;
prePresentBarrier.subresourceRange.layerCount = 1;
prePresentBarrier.image = info.buffers[info.current_buffer].image;
vkCmdPipelineBarrier(info.cmd, VK_PIPELINE_STAGE_ALL_COMMANDS_BIT,
VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT, 0, 0, NULL, 0, NULL,
1, &prePresentBarrier);
res = vkEndCommandBuffer(info.cmd);
const VkCommandBuffer cmd_bufs[] = {info.cmd};
VkFenceCreateInfo fenceInfo;
VkFence drawFence;
fenceInfo.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO;
fenceInfo.pNext = NULL;
fenceInfo.flags = 0;
vkCreateFence(info.device, &fenceInfo, NULL, &drawFence);
VkPipelineStageFlags pipe_stage_flags =
VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
VkSubmitInfo submit_info[1] = {};
submit_info[0].pNext = NULL;
submit_info[0].sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
submit_info[0].waitSemaphoreCount = 1;
submit_info[0].pWaitSemaphores = &presentCompleteSemaphore;
submit_info[0].pWaitDstStageMask = &pipe_stage_flags;
submit_info[0].commandBufferCount = 1;
submit_info[0].pCommandBuffers = cmd_bufs;
submit_info[0].signalSemaphoreCount = 0;
submit_info[0].pSignalSemaphores = NULL;
/* Queue the command buffer for execution */
res = vkQueueSubmit(info.queue, 1, submit_info, drawFence);
assert(res == VK_SUCCESS);
res = vkQueueWaitIdle(info.queue);
assert(res == VK_SUCCESS);
uint64_t samples_passed[4];
samples_passed[0] = 0;
samples_passed[1] = 0;
res = vkGetQueryPoolResults(
info.device, query_pool, 0 /*firstQuery*/, 2 /*queryCount*/,
sizeof(samples_passed) /*dataSize*/, samples_passed,
sizeof(uint64_t) /*stride*/,
VK_QUERY_RESULT_64_BIT | VK_QUERY_RESULT_WAIT_BIT);
assert(res == VK_SUCCESS);
std::cout << "vkGetQueryPoolResults data"
<< "\n";
std::cout << "samples_passed[0] = " << samples_passed[0] << "\n";
std::cout << "samples_passed[1] = " << samples_passed[1] << "\n";
/* Read back query result from buffer */
uint64_t *samples_passed_ptr;
res = vkMapMemory(info.device, query_result_mem, 0, mem_reqs.size, 0,
(void **)&samples_passed_ptr);
assert(res == VK_SUCCESS);
std::cout << "vkCmdCopyQueryPoolResults data"
<< "\n";
std::cout << "samples_passed[0] = " << samples_passed_ptr[0] << "\n";
std::cout << "samples_passed[1] = " << samples_passed_ptr[1] << "\n";
vkUnmapMemory(info.device, query_result_mem);
/* Now present the image in the window */
VkPresentInfoKHR present;
present.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR;
present.pNext = NULL;
present.swapchainCount = 1;
present.pSwapchains = &info.swap_chain;
present.pImageIndices = &info.current_buffer;
present.pWaitSemaphores = NULL;
present.waitSemaphoreCount = 0;
present.pResults = NULL;
/* Make sure command buffer is finished before presenting */
do {
res =
vkWaitForFences(info.device, 1, &drawFence, VK_TRUE, FENCE_TIMEOUT);
} while (res == VK_TIMEOUT);
assert(res == VK_SUCCESS);
res = vkQueuePresentKHR(info.queue, &present);
assert(res == VK_SUCCESS);
wait_seconds(1);
/* VULKAN_KEY_END */
if (info.save_images)
write_ppm(info, "occlusion_query");
vkDestroyBuffer(info.device, query_result_buf, NULL);
vkFreeMemory(info.device, query_result_mem, NULL);
vkDestroySemaphore(info.device, presentCompleteSemaphore, NULL);
vkDestroyQueryPool(info.device, query_pool, NULL);
vkDestroyFence(info.device, drawFence, NULL);
destroy_pipeline(info);
destroy_pipeline_cache(info);
destroy_descriptor_pool(info);
destroy_vertex_buffer(info);
destroy_framebuffers(info);
destroy_shaders(info);
destroy_renderpass(info);
destroy_descriptor_and_pipeline_layouts(info);
destroy_uniform_buffer(info);
destroy_depth_buffer(info);
destroy_swap_chain(info);
destroy_command_buffer(info);
destroy_command_pool(info);
destroy_device(info);
destroy_window(info);
destroy_instance(info);
return 0;
}
int sample_main(int argc, char *argv[]) {
VkResult U_ASSERT_ONLY res;
struct sample_info info = {};
char sample_title[] = "Draw Textured Cube";
const bool depthPresent = true;
process_command_line_args(info, argc, argv);
init_global_layer_properties(info);
init_instance_extension_names(info);
init_device_extension_names(info);
init_instance(info, sample_title);
init_enumerate_device(info);
init_window_size(info, 500, 500);
init_connection(info);
init_window(info);
init_swapchain_extension(info);
init_device(info);
init_command_pool(info);
init_command_buffer(info);
execute_begin_command_buffer(info);
init_device_queue(info);
init_swap_chain(info);
init_depth_buffer(info);
init_texture(info);
init_uniform_buffer(info);
init_descriptor_and_pipeline_layouts(info, true);
init_renderpass(info, depthPresent);
init_shaders(info, vertShaderText, fragShaderText);
init_framebuffers(info, depthPresent);
init_vertex_buffer(info, g_vb_texture_Data, sizeof(g_vb_texture_Data),
sizeof(g_vb_texture_Data[0]), true);
init_descriptor_pool(info, true);
init_descriptor_set(info, true);
init_pipeline_cache(info);
init_pipeline(info, depthPresent);
init_presentable_image(info);
VkClearValue clear_values[2];
init_clear_color_and_depth(info, clear_values);
VkRenderPassBeginInfo rp_begin;
init_render_pass_begin_info(info, rp_begin);
rp_begin.clearValueCount = 2;
rp_begin.pClearValues = clear_values;
vkCmdBeginRenderPass(info.cmd, &rp_begin, VK_SUBPASS_CONTENTS_INLINE);
vkCmdBindPipeline(info.cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, info.pipeline);
vkCmdBindDescriptorSets(info.cmd, VK_PIPELINE_BIND_POINT_GRAPHICS,
info.pipeline_layout, 0, NUM_DESCRIPTOR_SETS,
info.desc_set.data(), 0, NULL);
const VkDeviceSize offsets[1] = {0};
vkCmdBindVertexBuffers(info.cmd, 0, 1, &info.vertex_buffer.buf, offsets);
init_viewports(info);
init_scissors(info);
vkCmdDraw(info.cmd, 12 * 3, 1, 0, 0);
vkCmdEndRenderPass(info.cmd);
execute_pre_present_barrier(info);
res = vkEndCommandBuffer(info.cmd);
assert(res == VK_SUCCESS);
VkFence drawFence = {};
init_fence(info, drawFence);
VkPipelineStageFlags pipe_stage_flags =
VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
VkSubmitInfo submit_info = {};
init_submit_info(info, submit_info, pipe_stage_flags);
/* Queue the command buffer for execution */
res = vkQueueSubmit(info.queue, 1, &submit_info, drawFence);
assert(res == VK_SUCCESS);
/* Now present the image in the window */
VkPresentInfoKHR present = {};
init_present_info(info, present);
/* Make sure command buffer is finished before presenting */
do {
res =
vkWaitForFences(info.device, 1, &drawFence, VK_TRUE, FENCE_TIMEOUT);
} while (res == VK_TIMEOUT);
assert(res == VK_SUCCESS);
res = vkQueuePresentKHR(info.queue, &present);
assert(res == VK_SUCCESS);
wait_seconds(1);
if (info.save_images)
write_ppm(info, "template");
vkDestroyFence(info.device, drawFence, NULL);
vkDestroySemaphore(info.device, info.presentCompleteSemaphore, NULL);
destroy_pipeline(info);
destroy_pipeline_cache(info);
destroy_textures(info);
destroy_descriptor_pool(info);
destroy_vertex_buffer(info);
destroy_framebuffers(info);
destroy_shaders(info);
destroy_renderpass(info);
destroy_descriptor_and_pipeline_layouts(info);
destroy_uniform_buffer(info);
destroy_depth_buffer(info);
destroy_swap_chain(info);
destroy_command_buffer(info);
destroy_command_pool(info);
destroy_device(info);
destroy_window(info);
destroy_instance(info);
return 0;
}
int sample_main(int argc, char **argv) {
VkResult U_ASSERT_ONLY res;
struct sample_info info = {};
char sample_title[] = "Memory Barriers";
process_command_line_args(info, argc, argv);
init_global_layer_properties(info);
info.instance_extension_names.push_back(VK_KHR_SURFACE_EXTENSION_NAME);
#ifdef _WIN32
info.instance_extension_names.push_back(VK_KHR_WIN32_SURFACE_EXTENSION_NAME);
#elif __ANDROID__
info.instance_extension_names.push_back(VK_KHR_ANDROID_SURFACE_EXTENSION_NAME);
#else
info.instance_extension_names.push_back(VK_KHR_XCB_SURFACE_EXTENSION_NAME);
#endif
info.device_extension_names.push_back(VK_KHR_SWAPCHAIN_EXTENSION_NAME);
init_instance(info, sample_title);
init_enumerate_device(info);
init_device(info);
info.width = info.height = 500;
init_connection(info);
init_window(info);
init_swapchain_extension(info);
init_command_pool(info);
init_command_buffer(info);
execute_begin_command_buffer(info);
init_device_queue(info);
init_swap_chain(info, VK_IMAGE_USAGE_TRANSFER_DST_BIT | VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT);
// CmdClearColorImage is going to require usage of TRANSFER_DST, but
// it's not clear which format feature maps to the required TRANSFER_DST usage,
// BLIT_DST is a reasonable guess and it seems to work
init_texture(info, nullptr, VK_IMAGE_USAGE_TRANSFER_DST_BIT, VK_FORMAT_FEATURE_BLIT_DST_BIT);
init_uniform_buffer(info);
init_descriptor_and_pipeline_layouts(info, true);
init_renderpass(info, DEPTH_PRESENT, false, VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL);
init_shaders(info, vertShaderText, fragShaderText);
init_framebuffers(info, DEPTH_PRESENT);
init_vertex_buffer(info, vb_Data, sizeof(vb_Data), sizeof(vb_Data[0]), true);
init_descriptor_pool(info, true);
init_descriptor_set(info, true);
init_pipeline_cache(info);
init_pipeline(info, DEPTH_PRESENT);
/* VULKAN_KEY_START */
VkImageSubresourceRange srRange = {};
srRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
srRange.baseMipLevel = 0;
srRange.levelCount = VK_REMAINING_MIP_LEVELS;
srRange.baseArrayLayer = 0;
srRange.layerCount = VK_REMAINING_ARRAY_LAYERS;
VkClearColorValue clear_color[1];
clear_color[0].float32[0] = 0.2f;
clear_color[0].float32[1] = 0.2f;
clear_color[0].float32[2] = 0.2f;
clear_color[0].float32[3] = 0.2f;
VkSemaphoreCreateInfo presentCompleteSemaphoreCreateInfo;
presentCompleteSemaphoreCreateInfo.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO;
presentCompleteSemaphoreCreateInfo.pNext = NULL;
presentCompleteSemaphoreCreateInfo.flags = 0;
res = vkCreateSemaphore(info.device, &presentCompleteSemaphoreCreateInfo, NULL, &info.imageAcquiredSemaphore);
assert(res == VK_SUCCESS);
// Get the index of the next available swapchain image:
res = vkAcquireNextImageKHR(info.device, info.swap_chain, UINT64_MAX, info.imageAcquiredSemaphore, VK_NULL_HANDLE,
&info.current_buffer);
// TODO: Deal with the VK_SUBOPTIMAL_KHR and VK_ERROR_OUT_OF_DATE_KHR
// return codes
assert(res == VK_SUCCESS);
set_image_layout(info, info.buffers[info.current_buffer].image, VK_IMAGE_ASPECT_COLOR_BIT, VK_IMAGE_LAYOUT_UNDEFINED,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT, VK_PIPELINE_STAGE_TRANSFER_BIT);
// We need to do the clear here instead of using a renderpass load op since
// we will use the same renderpass multiple times in the frame
vkCmdClearColorImage(info.cmd, info.buffers[info.current_buffer].image, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, clear_color, 1,
&srRange);
VkRenderPassBeginInfo rp_begin;
rp_begin.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
rp_begin.pNext = NULL;
rp_begin.renderPass = info.render_pass;
rp_begin.framebuffer = info.framebuffers[info.current_buffer];
rp_begin.renderArea.offset.x = 0;
rp_begin.renderArea.offset.y = 0;
rp_begin.renderArea.extent.width = info.width;
rp_begin.renderArea.extent.height = info.height;
rp_begin.clearValueCount = 0;
rp_begin.pClearValues = NULL;
// Draw a textured quad on the left side of the window
vkCmdBeginRenderPass(info.cmd, &rp_begin, VK_SUBPASS_CONTENTS_INLINE);
vkCmdBindPipeline(info.cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, info.pipeline);
vkCmdBindDescriptorSets(info.cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, info.pipeline_layout, 0, NUM_DESCRIPTOR_SETS,
info.desc_set.data(), 0, NULL);
const VkDeviceSize offsets[1] = {0};
vkCmdBindVertexBuffers(info.cmd, 0, 1, &info.vertex_buffer.buf, offsets);
init_viewports(info);
init_scissors(info);
vkCmdDraw(info.cmd, 2 * 3, 1, 0, 0);
// We can't do a clear inside a renderpass, so end this one and start another one
// for the next draw
vkCmdEndRenderPass(info.cmd);
// Send a barrier to change the texture image's layout from SHADER_READ_ONLY
// to COLOR_ATTACHMENT_GENERAL because we're going to clear it
VkImageMemoryBarrier textureBarrier = {};
textureBarrier.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
textureBarrier.pNext = NULL;
textureBarrier.srcAccessMask = VK_ACCESS_SHADER_READ_BIT;
textureBarrier.dstAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT;
textureBarrier.oldLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
textureBarrier.newLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL;
textureBarrier.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
textureBarrier.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
textureBarrier.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
textureBarrier.subresourceRange.baseMipLevel = 0;
textureBarrier.subresourceRange.levelCount = 1;
textureBarrier.subresourceRange.baseArrayLayer = 0;
textureBarrier.subresourceRange.layerCount = 1;
textureBarrier.image = info.textures[0].image;
vkCmdPipelineBarrier(info.cmd, VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT, VK_PIPELINE_STAGE_TRANSFER_BIT, 0, 0, NULL, 0, NULL, 1,
&textureBarrier);
clear_color[0].float32[0] = 0.0f;
clear_color[0].float32[1] = 1.0f;
clear_color[0].float32[2] = 0.0f;
clear_color[0].float32[3] = 1.0f;
/* Clear texture to green */
vkCmdClearColorImage(info.cmd, info.textures[0].image, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, clear_color, 1, &srRange);
// Send a barrier to change the texture image's layout back to SHADER_READ_ONLY
// because we're going to use it as a texture again
textureBarrier.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
textureBarrier.pNext = NULL;
textureBarrier.srcAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT;
textureBarrier.dstAccessMask = VK_ACCESS_SHADER_READ_BIT;
textureBarrier.oldLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL;
textureBarrier.newLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
textureBarrier.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
textureBarrier.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
textureBarrier.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
textureBarrier.subresourceRange.baseMipLevel = 0;
textureBarrier.subresourceRange.levelCount = 1;
textureBarrier.subresourceRange.baseArrayLayer = 0;
textureBarrier.subresourceRange.layerCount = 1;
textureBarrier.image = info.textures[0].image;
vkCmdPipelineBarrier(info.cmd, VK_PIPELINE_STAGE_TRANSFER_BIT, VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT, 0, 0, NULL, 0, NULL, 1,
&textureBarrier);
// Draw the second quad to the right using the (now) green texture
vkCmdBeginRenderPass(info.cmd, &rp_begin, VK_SUBPASS_CONTENTS_INLINE);
// Draw starting with vertex index 6 to draw to the right of the first quad
vkCmdDraw(info.cmd, 2 * 3, 1, 6, 0);
vkCmdEndRenderPass(info.cmd);
// Change the present buffer from COLOR_ATTACHMENT_OPTIMAL to
// PRESENT_SOURCE_KHR
// so it can be presented
execute_pre_present_barrier(info);
res = vkEndCommandBuffer(info.cmd);
assert(res == VK_SUCCESS);
VkSubmitInfo submit_info = {};
VkPipelineStageFlags pipe_stage_flags = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
init_submit_info(info, submit_info, pipe_stage_flags);
assert(res == VK_SUCCESS);
VkFence drawFence = {};
init_fence(info, drawFence);
// Queue the command buffer for execution
res = vkQueueSubmit(info.graphics_queue, 1, &submit_info, drawFence);
assert(res == VK_SUCCESS);
// Now present the image in the window
VkPresentInfoKHR present{};
init_present_info(info, present);
// Make sure command buffer is finished before presenting
do {
res = vkWaitForFences(info.device, 1, &drawFence, VK_TRUE, FENCE_TIMEOUT);
} while (res == VK_TIMEOUT);
assert(res == VK_SUCCESS);
res = vkQueuePresentKHR(info.present_queue, &present);
assert(res == VK_SUCCESS);
/* VULKAN_KEY_END */
wait_seconds(1);
if (info.save_images) write_ppm(info, "memory_barriers");
vkDestroySemaphore(info.device, info.imageAcquiredSemaphore, NULL);
vkDestroyFence(info.device, drawFence, NULL);
destroy_pipeline(info);
destroy_pipeline_cache(info);
destroy_textures(info);
destroy_descriptor_pool(info);
destroy_vertex_buffer(info);
destroy_framebuffers(info);
destroy_shaders(info);
destroy_renderpass(info);
destroy_descriptor_and_pipeline_layouts(info);
destroy_uniform_buffer(info);
destroy_swap_chain(info);
destroy_command_buffer(info);
destroy_command_pool(info);
destroy_window(info);
destroy_device(info);
destroy_instance(info);
return 0;
}
void Font::drawText(const ICommandBuffersSP& cmdBuffer, const glm::mat4& viewProjection, const glm::vec2& translate, const std::string& text, const glm::vec4& color) const
{
if (!cmdBuffer.get())
{
return;
}
//
const VkBuffer buffers[1] = {vertexBuffer->getBuffer()->getBuffer()};
VkDeviceSize offsets[1] = {0};
vkCmdBindVertexBuffers(cmdBuffer->getCommandBuffer(), 0, 1, buffers, offsets);
//
glm::vec2 cursor = translate;
const Char* lastCharacter = nullptr;
for (auto c : text)
{
// Line break.
if (c == '\n')
{
cursor.x = translate.x;
cursor.y += getLineHeight();
lastCharacter = nullptr;
continue;
}
auto currentCharacter = allCharacters.find((int32_t)c);
if (currentCharacter == allCharacters.end())
{
// Character not found.
lastCharacter = nullptr;
continue;
}
//
// Advance, depending on kerning of current and last character.
//
if (lastCharacter)
{
cursor.x += lastCharacter->getKerning(currentCharacter->second.getId());
}
//
// Get bottom left corner of the character texture.
//
glm::vec2 origin = cursor;
origin.y += getBase();
origin.x -= currentCharacter->second.getXoffset();
// Draw Character.
glm::mat4 transformVertex = viewProjection * translateMat4(origin.x, origin.y, 0.0f);
vkCmdPushConstants(cmdBuffer->getCommandBuffer(), graphicsPipeline->getLayout(), VK_SHADER_STAGE_VERTEX_BIT, 0, sizeof(float) * 16, glm::value_ptr(transformVertex));
glm::mat3 translateTexCoord = translateMat3(currentCharacter->second.getX() / getScaleWidth(), (getScaleHeight() - currentCharacter->second.getY() - currentCharacter->second.getHeight()) / getScaleHeight());
glm::mat3 scaleTexCoord = scaleMat3(currentCharacter->second.getWidth() / getScaleWidth(), currentCharacter->second.getHeight() / getScaleHeight(), 1.0f);
glm::mat3 transformTexCoord = translateTexCoord * scaleTexCoord;
vkCmdPushConstants(cmdBuffer->getCommandBuffer(), graphicsPipeline->getLayout(), VK_SHADER_STAGE_VERTEX_BIT, sizeof(float) * 16, sizeof(float) * 9, glm::value_ptr(transformTexCoord));
vkCmdPushConstants(cmdBuffer->getCommandBuffer(), graphicsPipeline->getLayout(), VK_SHADER_STAGE_VERTEX_BIT, sizeof(float) * 16 + sizeof(float) * 12, sizeof(float) * 4, glm::value_ptr(color));
// Expecting triangle strip as primitive topology.
vkCmdDraw(cmdBuffer->getCommandBuffer(), 4, 1, 0, 0);
//
// Advance, as character has been drawn.
//
cursor.x += currentCharacter->second.getXadvance();
lastCharacter = ¤tCharacter->second;
}
}
bool Tutorial03::RecordCommandBuffers() {
VkCommandBufferBeginInfo graphics_commandd_buffer_begin_info = {
VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO, // VkStructureType sType
nullptr, // const void *pNext
VK_COMMAND_BUFFER_USAGE_SIMULTANEOUS_USE_BIT, // VkCommandBufferUsageFlags flags
nullptr // const VkCommandBufferInheritanceInfo *pInheritanceInfo
};
VkImageSubresourceRange image_subresource_range = {
VK_IMAGE_ASPECT_COLOR_BIT, // VkImageAspectFlags aspectMask
0, // uint32_t baseMipLevel
1, // uint32_t levelCount
0, // uint32_t baseArrayLayer
1 // uint32_t layerCount
};
VkClearValue clear_value = {
{ 1.0f, 0.8f, 0.4f, 0.0f }, // VkClearColorValue color
};
const std::vector<ImageParameters>& swap_chain_images = GetSwapChain().Images;
for( size_t i = 0; i < Vulkan.GraphicsCommandBuffers.size(); ++i ) {
vkBeginCommandBuffer( Vulkan.GraphicsCommandBuffers[i], &graphics_commandd_buffer_begin_info );
if( GetPresentQueue().Handle != GetGraphicsQueue().Handle ) {
VkImageMemoryBarrier barrier_from_present_to_draw = {
VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER, // VkStructureType sType
nullptr, // const void *pNext
VK_ACCESS_MEMORY_READ_BIT, // VkAccessFlags srcAccessMask
VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT, // VkAccessFlags dstAccessMask
VK_IMAGE_LAYOUT_PRESENT_SRC_KHR, // VkImageLayout oldLayout
VK_IMAGE_LAYOUT_PRESENT_SRC_KHR, // VkImageLayout newLayout
GetPresentQueue().FamilyIndex, // uint32_t srcQueueFamilyIndex
GetGraphicsQueue().FamilyIndex, // uint32_t dstQueueFamilyIndex
swap_chain_images[i].Handle, // VkImage image
image_subresource_range // VkImageSubresourceRange subresourceRange
};
vkCmdPipelineBarrier( Vulkan.GraphicsCommandBuffers[i], VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT, VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT, 0, 0, nullptr, 0, nullptr, 1, &barrier_from_present_to_draw );
}
VkRenderPassBeginInfo render_pass_begin_info = {
VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO, // VkStructureType sType
nullptr, // const void *pNext
Vulkan.RenderPass, // VkRenderPass renderPass
Vulkan.Framebuffers[i], // VkFramebuffer framebuffer
{ // VkRect2D renderArea
{ // VkOffset2D offset
0, // int32_t x
0 // int32_t y
},
{ // VkExtent2D extent
300, // int32_t width
300, // int32_t height
}
},
1, // uint32_t clearValueCount
&clear_value // const VkClearValue *pClearValues
};
vkCmdBeginRenderPass( Vulkan.GraphicsCommandBuffers[i], &render_pass_begin_info, VK_SUBPASS_CONTENTS_INLINE );
vkCmdBindPipeline( Vulkan.GraphicsCommandBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, Vulkan.GraphicsPipeline );
vkCmdDraw( Vulkan.GraphicsCommandBuffers[i], 3, 1, 0, 0 );
vkCmdEndRenderPass( Vulkan.GraphicsCommandBuffers[i] );
if( GetGraphicsQueue().Handle != GetPresentQueue().Handle ) {
VkImageMemoryBarrier barrier_from_draw_to_present = {
VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER, // VkStructureType sType
nullptr, // const void *pNext
VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT, // VkAccessFlags srcAccessMask
VK_ACCESS_MEMORY_READ_BIT, // VkAccessFlags dstAccessMask
VK_IMAGE_LAYOUT_PRESENT_SRC_KHR, // VkImageLayout oldLayout
VK_IMAGE_LAYOUT_PRESENT_SRC_KHR, // VkImageLayout newLayout
GetGraphicsQueue().FamilyIndex, // uint32_t srcQueueFamilyIndex
GetPresentQueue().FamilyIndex, // uint32_t dstQueueFamilyIndex
swap_chain_images[i].Handle, // VkImage image
image_subresource_range // VkImageSubresourceRange subresourceRange
};
vkCmdPipelineBarrier( Vulkan.GraphicsCommandBuffers[i], VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT, VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT, 0, 0, nullptr, 0, nullptr, 1, &barrier_from_draw_to_present );
}
if( vkEndCommandBuffer( Vulkan.GraphicsCommandBuffers[i] ) != VK_SUCCESS ) {
std::cout << "Could not record command buffer!" << std::endl;
return false;
}
}
return true;
}
void R_UpdateWarpTextures (void)
{
texture_t *tx;
int i;
float x, y, x2, warptess;
if (cl.paused || r_drawflat_cheatsafe || r_lightmap_cheatsafe)
return;
warptess = 128.0/CLAMP (3.0, floor(r_waterquality.value), 64.0);
int num_textures = cl.worldmodel->numtextures;
int num_warp_textures = 0;
// Render warp to top mips
for (i = 0; i < num_textures; ++i)
{
if (!(tx = cl.worldmodel->textures[i]))
continue;
if (!tx->update_warp)
continue;
VkRect2D render_area;
render_area.offset.x = 0;
render_area.offset.y = 0;
render_area.extent.width = WARPIMAGESIZE;
render_area.extent.height = WARPIMAGESIZE;
VkRenderPassBeginInfo render_pass_begin_info;
memset(&render_pass_begin_info, 0, sizeof(render_pass_begin_info));
render_pass_begin_info.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
render_pass_begin_info.renderArea = render_area;
render_pass_begin_info.renderPass = vulkan_globals.warp_render_pass;
render_pass_begin_info.framebuffer = tx->warpimage->frame_buffer;
vkCmdBeginRenderPass(vulkan_globals.command_buffer, &render_pass_begin_info, VK_SUBPASS_CONTENTS_INLINE);
//render warp
GL_SetCanvas (CANVAS_WARPIMAGE);
vkCmdBindPipeline(vulkan_globals.command_buffer, VK_PIPELINE_BIND_POINT_GRAPHICS, vulkan_globals.warp_pipeline);
vkCmdBindDescriptorSets(vulkan_globals.command_buffer, VK_PIPELINE_BIND_POINT_GRAPHICS, vulkan_globals.basic_pipeline_layout, 0, 1, &tx->gltexture->descriptor_set, 0, NULL);
int num_verts = 0;
for (y=0.0; y<128.01; y+=warptess) // .01 for rounding errors
num_verts += 2;
for (x=0.0; x<128.0; x=x2)
{
VkBuffer buffer;
VkDeviceSize buffer_offset;
basicvertex_t * vertices = (basicvertex_t*)R_VertexAllocate(num_verts * sizeof(basicvertex_t), &buffer, &buffer_offset);
int i = 0;
x2 = x + warptess;
for (y=0.0; y<128.01; y+=warptess) // .01 for rounding errors
{
vertices[i].position[0] = x;
vertices[i].position[1] = y;
vertices[i].position[2] = 0.0f;
vertices[i].texcoord[0] = WARPCALC(x,y);
vertices[i].texcoord[1] = WARPCALC(y,x);
vertices[i].color[0] = 255;
vertices[i].color[1] = 255;
vertices[i].color[2] = 255;
vertices[i].color[3] = 255;
i += 1;
vertices[i].position[0] = x2;
vertices[i].position[1] = y;
vertices[i].position[2] = 0.0f;
vertices[i].texcoord[0] = WARPCALC(x2,y);
vertices[i].texcoord[1] = WARPCALC(y,x2);
vertices[i].color[0] = 255;
vertices[i].color[1] = 255;
vertices[i].color[2] = 255;
vertices[i].color[3] = 255;
i += 1;
}
vkCmdBindVertexBuffers(vulkan_globals.command_buffer, 0, 1, &buffer, &buffer_offset);
vkCmdDraw(vulkan_globals.command_buffer, num_verts, 1, 0, 0);
}
vkCmdEndRenderPass(vulkan_globals.command_buffer);
VkImageMemoryBarrier * image_barrier = &warp_image_barriers[num_warp_textures];
image_barrier->sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
image_barrier->pNext = NULL;
image_barrier->srcAccessMask = VK_ACCESS_SHADER_READ_BIT;
image_barrier->dstAccessMask = VK_ACCESS_TRANSFER_READ_BIT;
image_barrier->oldLayout = VK_IMAGE_LAYOUT_UNDEFINED;
image_barrier->newLayout = VK_IMAGE_LAYOUT_GENERAL;
image_barrier->srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
image_barrier->dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
image_barrier->image = tx->warpimage->image;
image_barrier->subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
image_barrier->subresourceRange.baseMipLevel = 1;
image_barrier->subresourceRange.levelCount = WARPIMAGEMIPS - 1;
image_barrier->subresourceRange.baseArrayLayer = 0;
image_barrier->subresourceRange.layerCount = 1;
warp_textures[num_warp_textures] = tx;
num_warp_textures += 1;
}
// Make sure that writes are done for top mips we just rendered to
VkMemoryBarrier memory_barrier;
memory_barrier.sType = VK_STRUCTURE_TYPE_MEMORY_BARRIER;
memory_barrier.pNext = NULL;
memory_barrier.srcAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
memory_barrier.dstAccessMask = VK_ACCESS_TRANSFER_READ_BIT;
// Transfer all other mips from UNDEFINED to GENERAL layout
vkCmdPipelineBarrier(vulkan_globals.command_buffer, VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT, VK_PIPELINE_STAGE_TRANSFER_BIT, 0, 1, &memory_barrier, 0, NULL, num_warp_textures, warp_image_barriers);
// Generate mip chains
for (int mip = 1; mip < WARPIMAGEMIPS; ++mip)
{
int srcSize = WARPIMAGESIZE >> (mip - 1);
int dstSize = WARPIMAGESIZE >> mip;
for (i = 0; i < num_warp_textures; ++i)
{
tx = warp_textures[i];
VkImageBlit region;
memset(®ion, 0, sizeof(region));
region.srcOffsets[1].x = srcSize;
region.srcOffsets[1].y = srcSize;
region.srcSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
region.srcSubresource.layerCount = 1;
region.srcSubresource.mipLevel = (mip - 1);
region.dstOffsets[1].x = dstSize;
region.dstOffsets[1].y = dstSize;
region.dstSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
region.dstSubresource.layerCount = 1;
region.dstSubresource.mipLevel = mip;
vkCmdBlitImage(vulkan_globals.command_buffer, tx->warpimage->image, VK_IMAGE_LAYOUT_GENERAL, tx->warpimage->image, VK_IMAGE_LAYOUT_GENERAL, 1, ®ion, VK_FILTER_LINEAR);
}
if (mip < (WARPIMAGEMIPS - 1))
{
memory_barrier.srcAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT;
memory_barrier.dstAccessMask = VK_ACCESS_TRANSFER_READ_BIT;
vkCmdPipelineBarrier(vulkan_globals.command_buffer, VK_PIPELINE_STAGE_TRANSFER_BIT, VK_PIPELINE_STAGE_TRANSFER_BIT, 0, 1, &memory_barrier, 0, NULL, 0, NULL);
}
}
// Transfer all warp texture mips from GENERAL to SHADER_READ_ONLY_OPTIMAL
for (i = 0; i < num_warp_textures; ++i)
{
tx = warp_textures[i];
VkImageMemoryBarrier * image_barrier = &warp_image_barriers[i];
image_barrier->sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
image_barrier->pNext = NULL;
image_barrier->srcAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT;
image_barrier->dstAccessMask = VK_ACCESS_SHADER_READ_BIT;
image_barrier->oldLayout = VK_IMAGE_LAYOUT_GENERAL;
image_barrier->newLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
image_barrier->srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
image_barrier->dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
image_barrier->image = tx->warpimage->image;
image_barrier->subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
image_barrier->subresourceRange.baseMipLevel = 0;
image_barrier->subresourceRange.levelCount = WARPIMAGEMIPS;
image_barrier->subresourceRange.baseArrayLayer = 0;
image_barrier->subresourceRange.layerCount = 1;
tx->update_warp = false;
}
vkCmdPipelineBarrier(vulkan_globals.command_buffer, VK_PIPELINE_STAGE_TRANSFER_BIT, VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT, 0, 0, NULL, 0, NULL, num_warp_textures, warp_image_barriers);
//if warp render went down into sbar territory, we need to be sure to refresh it next frame
if (WARPIMAGESIZE + sb_lines > glheight)
Sbar_Changed ();
//if viewsize is less than 100, we need to redraw the frame around the viewport
scr_tileclear_updates = 0;
}
int sample_main(int argc, char *argv[]) {
VkResult U_ASSERT_ONLY res;
struct sample_info info = {};
char sample_title[] = "Separate Image Sampler";
const bool depthPresent = true;
process_command_line_args(info, argc, argv);
init_global_layer_properties(info);
init_instance_extension_names(info);
init_device_extension_names(info);
init_instance(info, sample_title);
init_enumerate_device(info);
init_window_size(info, 500, 500);
init_connection(info);
init_window(info);
init_swapchain_extension(info);
init_device(info);
init_command_pool(info);
init_command_buffer(info);
execute_begin_command_buffer(info);
init_device_queue(info);
init_swap_chain(info);
init_depth_buffer(info);
init_uniform_buffer(info);
init_renderpass(info, depthPresent);
init_shaders(info, vertShaderText, fragShaderText);
init_framebuffers(info, depthPresent);
init_vertex_buffer(info, g_vb_texture_Data, sizeof(g_vb_texture_Data), sizeof(g_vb_texture_Data[0]), true);
/* VULKAN_KEY_START */
// Sample from a green texture to easily see that we've pulled correct texel
// value
// Create our separate image
struct texture_object texObj;
const char *textureName = "green.ppm";
init_image(info, texObj, textureName);
info.textures.push_back(texObj);
info.texture_data.image_info.sampler = 0;
info.texture_data.image_info.imageView = info.textures[0].view;
info.texture_data.image_info.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
// Create our separate sampler
VkSampler separateSampler = {};
init_sampler(info, separateSampler);
VkDescriptorImageInfo samplerInfo = {};
samplerInfo.sampler = separateSampler;
// Set up one descriptor set
static const unsigned descriptor_set_count = 1;
static const unsigned resource_count = 3;
static const unsigned resource_type_count = 3;
// Create binding and layout for the following, matching contents of shader
// binding 0 = uniform buffer (MVP)
// binding 1 = texture2D
// binding 2 = sampler
VkDescriptorSetLayoutBinding resource_binding[resource_count] = {};
resource_binding[0].binding = 0;
resource_binding[0].descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
resource_binding[0].descriptorCount = 1;
resource_binding[0].stageFlags = VK_SHADER_STAGE_VERTEX_BIT;
resource_binding[0].pImmutableSamplers = NULL;
resource_binding[1].binding = 1;
resource_binding[1].descriptorType = VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE;
resource_binding[1].descriptorCount = 1;
resource_binding[1].stageFlags = VK_SHADER_STAGE_FRAGMENT_BIT;
resource_binding[1].pImmutableSamplers = NULL;
resource_binding[2].binding = 2;
resource_binding[2].descriptorType = VK_DESCRIPTOR_TYPE_SAMPLER;
resource_binding[2].descriptorCount = 1;
resource_binding[2].stageFlags = VK_SHADER_STAGE_FRAGMENT_BIT;
resource_binding[2].pImmutableSamplers = NULL;
VkDescriptorSetLayoutCreateInfo resource_layout_info[1] = {};
resource_layout_info[0].sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO;
resource_layout_info[0].pNext = NULL;
resource_layout_info[0].bindingCount = resource_count;
resource_layout_info[0].pBindings = resource_binding;
VkDescriptorSetLayout descriptor_layouts[1] = {};
res = vkCreateDescriptorSetLayout(info.device, resource_layout_info, NULL, &descriptor_layouts[0]);
assert(res == VK_SUCCESS);
// Create pipeline layout
VkPipelineLayoutCreateInfo pipelineLayoutCreateInfo[1] = {};
pipelineLayoutCreateInfo[0].sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO;
pipelineLayoutCreateInfo[0].pNext = NULL;
pipelineLayoutCreateInfo[0].pushConstantRangeCount = 0;
pipelineLayoutCreateInfo[0].pPushConstantRanges = NULL;
pipelineLayoutCreateInfo[0].setLayoutCount = descriptor_set_count;
pipelineLayoutCreateInfo[0].pSetLayouts = descriptor_layouts;
res = vkCreatePipelineLayout(info.device, pipelineLayoutCreateInfo, NULL, &info.pipeline_layout);
assert(res == VK_SUCCESS);
// Create a single pool to contain data for our descriptor set
VkDescriptorPoolSize pool_sizes[resource_type_count] = {};
pool_sizes[0].type = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
pool_sizes[0].descriptorCount = 1;
pool_sizes[1].type = VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE;
pool_sizes[1].descriptorCount = 1;
pool_sizes[2].type = VK_DESCRIPTOR_TYPE_SAMPLER;
pool_sizes[2].descriptorCount = 1;
VkDescriptorPoolCreateInfo pool_info[1] = {};
pool_info[0].sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;
pool_info[0].pNext = NULL;
pool_info[0].maxSets = descriptor_set_count;
pool_info[0].poolSizeCount = resource_type_count;
pool_info[0].pPoolSizes = pool_sizes;
VkDescriptorPool descriptor_pool[1] = {};
res = vkCreateDescriptorPool(info.device, pool_info, NULL, descriptor_pool);
assert(res == VK_SUCCESS);
VkDescriptorSetAllocateInfo alloc_info[1];
alloc_info[0].sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO;
alloc_info[0].pNext = NULL;
alloc_info[0].descriptorPool = descriptor_pool[0];
alloc_info[0].descriptorSetCount = descriptor_set_count;
alloc_info[0].pSetLayouts = descriptor_layouts;
// Populate descriptor sets
VkDescriptorSet descriptor_sets[descriptor_set_count] = {};
res = vkAllocateDescriptorSets(info.device, alloc_info, descriptor_sets);
assert(res == VK_SUCCESS);
VkWriteDescriptorSet descriptor_writes[resource_count];
// Populate with info about our uniform buffer for MVP
descriptor_writes[0] = {};
descriptor_writes[0].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
descriptor_writes[0].pNext = NULL;
descriptor_writes[0].dstSet = descriptor_sets[0];
descriptor_writes[0].descriptorCount = 1;
descriptor_writes[0].descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
descriptor_writes[0].pBufferInfo = &info.uniform_data.buffer_info; // populated by init_uniform_buffer()
descriptor_writes[0].dstArrayElement = 0;
descriptor_writes[0].dstBinding = 0;
// Populate with info about our image
descriptor_writes[1] = {};
descriptor_writes[1].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
descriptor_writes[1].pNext = NULL;
descriptor_writes[1].dstSet = descriptor_sets[0];
descriptor_writes[1].descriptorCount = 1;
descriptor_writes[1].descriptorType = VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE;
descriptor_writes[1].pImageInfo = &info.texture_data.image_info; // populated by init_texture()
descriptor_writes[1].dstArrayElement = 0;
descriptor_writes[1].dstBinding = 1;
// Populate with info about our sampler
descriptor_writes[2] = {};
descriptor_writes[2].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
descriptor_writes[2].pNext = NULL;
descriptor_writes[2].dstSet = descriptor_sets[0];
descriptor_writes[2].descriptorCount = 1;
descriptor_writes[2].descriptorType = VK_DESCRIPTOR_TYPE_SAMPLER;
descriptor_writes[2].pImageInfo = &samplerInfo;
descriptor_writes[2].dstArrayElement = 0;
descriptor_writes[2].dstBinding = 2;
vkUpdateDescriptorSets(info.device, resource_count, descriptor_writes, 0, NULL);
/* VULKAN_KEY_END */
init_pipeline_cache(info);
init_pipeline(info, depthPresent);
init_presentable_image(info);
VkClearValue clear_values[2];
init_clear_color_and_depth(info, clear_values);
VkRenderPassBeginInfo rp_begin;
init_render_pass_begin_info(info, rp_begin);
rp_begin.clearValueCount = 2;
rp_begin.pClearValues = clear_values;
vkCmdBeginRenderPass(info.cmd, &rp_begin, VK_SUBPASS_CONTENTS_INLINE);
vkCmdBindPipeline(info.cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, info.pipeline);
vkCmdBindDescriptorSets(info.cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, info.pipeline_layout, 0, NUM_DESCRIPTOR_SETS,
descriptor_sets, 0, NULL);
const VkDeviceSize offsets[1] = {0};
vkCmdBindVertexBuffers(info.cmd, 0, 1, &info.vertex_buffer.buf, offsets);
init_viewports(info);
init_scissors(info);
vkCmdDraw(info.cmd, 12 * 3, 1, 0, 0);
vkCmdEndRenderPass(info.cmd);
res = vkEndCommandBuffer(info.cmd);
assert(res == VK_SUCCESS);
VkFence drawFence = {};
init_fence(info, drawFence);
VkPipelineStageFlags pipe_stage_flags = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
VkSubmitInfo submit_info = {};
init_submit_info(info, submit_info, pipe_stage_flags);
/* Queue the command buffer for execution */
res = vkQueueSubmit(info.graphics_queue, 1, &submit_info, drawFence);
assert(res == VK_SUCCESS);
/* Now present the image in the window */
VkPresentInfoKHR present = {};
init_present_info(info, present);
/* Make sure command buffer is finished before presenting */
do {
res = vkWaitForFences(info.device, 1, &drawFence, VK_TRUE, FENCE_TIMEOUT);
} while (res == VK_TIMEOUT);
assert(res == VK_SUCCESS);
res = vkQueuePresentKHR(info.present_queue, &present);
assert(res == VK_SUCCESS);
wait_seconds(1);
if (info.save_images) write_ppm(info, "separate_image_sampler");
vkDestroyFence(info.device, drawFence, NULL);
vkDestroySemaphore(info.device, info.imageAcquiredSemaphore, NULL);
destroy_pipeline(info);
destroy_pipeline_cache(info);
vkDestroySampler(info.device, separateSampler, NULL);
vkDestroyImageView(info.device, info.textures[0].view, NULL);
vkDestroyImage(info.device, info.textures[0].image, NULL);
vkFreeMemory(info.device, info.textures[0].mem, NULL);
// instead of destroy_descriptor_pool(info);
vkDestroyDescriptorPool(info.device, descriptor_pool[0], NULL);
destroy_vertex_buffer(info);
destroy_framebuffers(info);
destroy_shaders(info);
destroy_renderpass(info);
// instead of destroy_descriptor_and_pipeline_layouts(info);
for (int i = 0; i < descriptor_set_count; i++) vkDestroyDescriptorSetLayout(info.device, descriptor_layouts[i], NULL);
vkDestroyPipelineLayout(info.device, info.pipeline_layout, NULL);
destroy_uniform_buffer(info);
destroy_depth_buffer(info);
destroy_swap_chain(info);
destroy_command_buffer(info);
destroy_command_pool(info);
destroy_device(info);
destroy_window(info);
destroy_instance(info);
return 0;
}
int sample_main(int argc, char *argv[]) {
VkResult U_ASSERT_ONLY res;
bool U_ASSERT_ONLY pass;
struct sample_info info = {};
char sample_title[] = "Input Attachment Sample";
const bool depthPresent = false;
const bool vertexPresent = false;
process_command_line_args(info, argc, argv);
init_global_layer_properties(info);
init_instance_extension_names(info);
init_device_extension_names(info);
init_instance(info, sample_title);
init_enumerate_device(info);
VkFormatProperties props;
vkGetPhysicalDeviceFormatProperties(info.gpus[0], VK_FORMAT_R8G8B8A8_UNORM, &props);
if (!(props.optimalTilingFeatures & VK_FORMAT_FEATURE_COLOR_ATTACHMENT_BIT)) {
std::cout << "VK_FORMAT_R8G8B8A8_UNORM format unsupported for input "
"attachment\n";
exit(-1);
}
init_window_size(info, 500, 500);
init_connection(info);
init_window(info);
init_swapchain_extension(info);
init_device(info);
init_command_pool(info);
init_command_buffer(info);
execute_begin_command_buffer(info);
init_device_queue(info);
init_swap_chain(info);
/* VULKAN_KEY_START */
// Create a framebuffer with 2 attachments, one the color attachment
// the shaders render into, and the other an input attachment which
// will be cleared to yellow, and then used by the shaders to color
// the drawn triangle. Final result should be a yellow triangle
// Create the image that will be used as the input attachment
// The image for the color attachment is the presentable image already
// created in init_swapchain()
VkImageCreateInfo image_create_info = {};
image_create_info.sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO;
image_create_info.pNext = NULL;
image_create_info.imageType = VK_IMAGE_TYPE_2D;
image_create_info.format = info.format;
image_create_info.extent.width = info.width;
image_create_info.extent.height = info.height;
image_create_info.extent.depth = 1;
image_create_info.mipLevels = 1;
image_create_info.arrayLayers = 1;
image_create_info.samples = NUM_SAMPLES;
image_create_info.tiling = VK_IMAGE_TILING_OPTIMAL;
image_create_info.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
image_create_info.usage = VK_IMAGE_USAGE_INPUT_ATTACHMENT_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT;
image_create_info.queueFamilyIndexCount = 0;
image_create_info.pQueueFamilyIndices = NULL;
image_create_info.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
image_create_info.flags = 0;
VkMemoryAllocateInfo mem_alloc = {};
mem_alloc.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
mem_alloc.pNext = NULL;
mem_alloc.allocationSize = 0;
mem_alloc.memoryTypeIndex = 0;
VkImage input_image;
VkDeviceMemory input_memory;
res = vkCreateImage(info.device, &image_create_info, NULL, &input_image);
assert(res == VK_SUCCESS);
VkMemoryRequirements mem_reqs;
vkGetImageMemoryRequirements(info.device, input_image, &mem_reqs);
mem_alloc.allocationSize = mem_reqs.size;
pass = memory_type_from_properties(info, mem_reqs.memoryTypeBits, 0, &mem_alloc.memoryTypeIndex);
assert(pass);
res = vkAllocateMemory(info.device, &mem_alloc, NULL, &input_memory);
assert(res == VK_SUCCESS);
res = vkBindImageMemory(info.device, input_image, input_memory, 0);
assert(res == VK_SUCCESS);
// Set the image layout to TRANSFER_DST_OPTIMAL to be ready for clear
set_image_layout(info, input_image, VK_IMAGE_ASPECT_COLOR_BIT, VK_IMAGE_LAYOUT_UNDEFINED, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT, VK_PIPELINE_STAGE_TRANSFER_BIT);
VkImageSubresourceRange srRange = {};
srRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
srRange.baseMipLevel = 0;
srRange.levelCount = VK_REMAINING_MIP_LEVELS;
srRange.baseArrayLayer = 0;
srRange.layerCount = VK_REMAINING_ARRAY_LAYERS;
VkClearColorValue clear_color;
clear_color.float32[0] = 1.0f;
clear_color.float32[1] = 1.0f;
clear_color.float32[2] = 0.0f;
clear_color.float32[3] = 0.0f;
// Clear the input attachment image to yellow
vkCmdClearColorImage(info.cmd, input_image, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, &clear_color, 1, &srRange);
// Set the image layout to SHADER_READONLY_OPTIMAL for use by the shaders
set_image_layout(info, input_image, VK_IMAGE_ASPECT_COLOR_BIT, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL, VK_PIPELINE_STAGE_TRANSFER_BIT,
VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT);
VkImageViewCreateInfo view_info = {};
view_info.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
view_info.pNext = NULL;
view_info.image = VK_NULL_HANDLE;
view_info.viewType = VK_IMAGE_VIEW_TYPE_2D;
view_info.format = info.format;
view_info.components.r = VK_COMPONENT_SWIZZLE_R;
view_info.components.g = VK_COMPONENT_SWIZZLE_G;
view_info.components.b = VK_COMPONENT_SWIZZLE_B;
view_info.components.a = VK_COMPONENT_SWIZZLE_A;
view_info.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
view_info.subresourceRange.baseMipLevel = 0;
view_info.subresourceRange.levelCount = 1;
view_info.subresourceRange.baseArrayLayer = 0;
view_info.subresourceRange.layerCount = 1;
VkImageView input_attachment_view;
view_info.image = input_image;
res = vkCreateImageView(info.device, &view_info, NULL, &input_attachment_view);
assert(res == VK_SUCCESS);
VkDescriptorImageInfo input_image_info = {};
input_image_info.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
input_image_info.imageView = input_attachment_view;
input_image_info.sampler = VK_NULL_HANDLE;
VkDescriptorSetLayoutBinding layout_bindings[1];
layout_bindings[0].binding = 0;
layout_bindings[0].descriptorType = VK_DESCRIPTOR_TYPE_INPUT_ATTACHMENT;
layout_bindings[0].descriptorCount = 1;
layout_bindings[0].stageFlags = VK_SHADER_STAGE_FRAGMENT_BIT;
layout_bindings[0].pImmutableSamplers = NULL;
VkDescriptorSetLayoutCreateInfo descriptor_layout = {};
descriptor_layout.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO;
descriptor_layout.pNext = NULL;
descriptor_layout.bindingCount = 1;
descriptor_layout.pBindings = layout_bindings;
info.desc_layout.resize(NUM_DESCRIPTOR_SETS);
res = vkCreateDescriptorSetLayout(info.device, &descriptor_layout, NULL, info.desc_layout.data());
assert(res == VK_SUCCESS);
VkPipelineLayoutCreateInfo pPipelineLayoutCreateInfo = {};
pPipelineLayoutCreateInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO;
pPipelineLayoutCreateInfo.pNext = NULL;
pPipelineLayoutCreateInfo.pushConstantRangeCount = 0;
pPipelineLayoutCreateInfo.pPushConstantRanges = NULL;
pPipelineLayoutCreateInfo.setLayoutCount = NUM_DESCRIPTOR_SETS;
pPipelineLayoutCreateInfo.pSetLayouts = info.desc_layout.data();
res = vkCreatePipelineLayout(info.device, &pPipelineLayoutCreateInfo, NULL, &info.pipeline_layout);
assert(res == VK_SUCCESS);
// First attachment is the color attachment - clear at the beginning of the
// renderpass and transition layout to PRESENT_SRC_KHR at the end of
// renderpass
VkAttachmentDescription attachments[2];
attachments[0].format = info.format;
attachments[0].samples = VK_SAMPLE_COUNT_1_BIT;
attachments[0].loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
attachments[0].storeOp = VK_ATTACHMENT_STORE_OP_STORE;
attachments[0].stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
attachments[0].stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
attachments[0].initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
attachments[0].finalLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
attachments[0].flags = 0;
// Second attachment is input attachment. Once cleared it should have
// width*height yellow pixels. Doing a subpassLoad in the fragment shader
// should give the shader the color at the fragments x,y location
// from the input attachment
attachments[1].format = info.format;
attachments[1].samples = VK_SAMPLE_COUNT_1_BIT;
attachments[1].loadOp = VK_ATTACHMENT_LOAD_OP_LOAD;
attachments[1].storeOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
attachments[1].stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
attachments[1].stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
attachments[1].initialLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
attachments[1].finalLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
attachments[1].flags = 0;
VkAttachmentReference color_reference = {};
color_reference.attachment = 0;
color_reference.layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
VkAttachmentReference input_reference = {};
input_reference.attachment = 1;
input_reference.layout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
VkSubpassDescription subpass = {};
subpass.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS;
subpass.flags = 0;
subpass.inputAttachmentCount = 1;
subpass.pInputAttachments = &input_reference;
subpass.colorAttachmentCount = 1;
subpass.pColorAttachments = &color_reference;
subpass.pResolveAttachments = NULL;
subpass.pDepthStencilAttachment = NULL;
subpass.preserveAttachmentCount = 0;
subpass.pPreserveAttachments = NULL;
VkRenderPassCreateInfo rp_info = {};
rp_info.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO;
rp_info.pNext = NULL;
rp_info.attachmentCount = 2;
rp_info.pAttachments = attachments;
rp_info.subpassCount = 1;
rp_info.pSubpasses = &subpass;
rp_info.dependencyCount = 0;
rp_info.pDependencies = NULL;
res = vkCreateRenderPass(info.device, &rp_info, NULL, &info.render_pass);
assert(!res);
init_shaders(info, vertShaderText, fragShaderText);
VkImageView fb_attachments[2];
fb_attachments[1] = input_attachment_view;
VkFramebufferCreateInfo fbc_info = {};
fbc_info.sType = VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO;
fbc_info.pNext = NULL;
fbc_info.renderPass = info.render_pass;
fbc_info.attachmentCount = 2;
fbc_info.pAttachments = fb_attachments;
fbc_info.width = info.width;
fbc_info.height = info.height;
fbc_info.layers = 1;
uint32_t i;
info.framebuffers = (VkFramebuffer *)malloc(info.swapchainImageCount * sizeof(VkFramebuffer));
for (i = 0; i < info.swapchainImageCount; i++) {
fb_attachments[0] = info.buffers[i].view;
res = vkCreateFramebuffer(info.device, &fbc_info, NULL, &info.framebuffers[i]);
assert(res == VK_SUCCESS);
}
VkDescriptorPoolSize type_count[1];
type_count[0].type = VK_DESCRIPTOR_TYPE_INPUT_ATTACHMENT;
type_count[0].descriptorCount = 1;
VkDescriptorPoolCreateInfo descriptor_pool = {};
descriptor_pool.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;
descriptor_pool.pNext = NULL;
descriptor_pool.maxSets = 1;
descriptor_pool.poolSizeCount = 1;
descriptor_pool.pPoolSizes = type_count;
res = vkCreateDescriptorPool(info.device, &descriptor_pool, NULL, &info.desc_pool);
assert(res == VK_SUCCESS);
VkDescriptorSetAllocateInfo desc_alloc_info[1];
desc_alloc_info[0].sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO;
desc_alloc_info[0].pNext = NULL;
desc_alloc_info[0].descriptorPool = info.desc_pool;
desc_alloc_info[0].descriptorSetCount = 1;
desc_alloc_info[0].pSetLayouts = info.desc_layout.data();
info.desc_set.resize(1);
res = vkAllocateDescriptorSets(info.device, desc_alloc_info, info.desc_set.data());
assert(res == VK_SUCCESS);
VkWriteDescriptorSet writes[1];
// Write descriptor set with one write describing input attachment
writes[0] = {};
writes[0].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
writes[0].dstSet = info.desc_set[0];
writes[0].dstBinding = 0;
writes[0].descriptorCount = 1;
writes[0].descriptorType = VK_DESCRIPTOR_TYPE_INPUT_ATTACHMENT;
writes[0].pImageInfo = &input_image_info;
writes[0].pBufferInfo = nullptr;
writes[0].pTexelBufferView = nullptr;
writes[0].dstArrayElement = 0;
vkUpdateDescriptorSets(info.device, 1, writes, 0, NULL);
init_pipeline_cache(info);
init_pipeline(info, depthPresent, vertexPresent);
// Color attachment clear to gray
VkClearValue clear_values;
clear_values.color.float32[0] = 0.2f;
clear_values.color.float32[1] = 0.2f;
clear_values.color.float32[2] = 0.2f;
clear_values.color.float32[3] = 0.2f;
VkSemaphoreCreateInfo imageAcquiredSemaphoreCreateInfo;
imageAcquiredSemaphoreCreateInfo.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO;
imageAcquiredSemaphoreCreateInfo.pNext = NULL;
imageAcquiredSemaphoreCreateInfo.flags = 0;
res = vkCreateSemaphore(info.device, &imageAcquiredSemaphoreCreateInfo, NULL, &info.imageAcquiredSemaphore);
assert(res == VK_SUCCESS);
// Get the index of the next available swapchain image:
res = vkAcquireNextImageKHR(info.device, info.swap_chain, UINT64_MAX, info.imageAcquiredSemaphore, VK_NULL_HANDLE,
&info.current_buffer);
// TODO: Deal with the VK_SUBOPTIMAL_KHR and VK_ERROR_OUT_OF_DATE_KHR
// return codes
assert(res == VK_SUCCESS);
VkRenderPassBeginInfo rp_begin;
rp_begin.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
rp_begin.pNext = NULL;
rp_begin.renderPass = info.render_pass;
rp_begin.framebuffer = info.framebuffers[info.current_buffer];
rp_begin.renderArea.offset.x = 0;
rp_begin.renderArea.offset.y = 0;
rp_begin.renderArea.extent.width = info.width;
rp_begin.renderArea.extent.height = info.height;
rp_begin.clearValueCount = 1;
rp_begin.pClearValues = &clear_values;
vkCmdBeginRenderPass(info.cmd, &rp_begin, VK_SUBPASS_CONTENTS_INLINE);
vkCmdBindPipeline(info.cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, info.pipeline);
vkCmdBindDescriptorSets(info.cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, info.pipeline_layout, 0, NUM_DESCRIPTOR_SETS,
info.desc_set.data(), 0, NULL);
init_viewports(info);
init_scissors(info);
vkCmdDraw(info.cmd, 3, 1, 0, 0);
vkCmdEndRenderPass(info.cmd);
res = vkEndCommandBuffer(info.cmd);
assert(res == VK_SUCCESS);
/* VULKAN_KEY_END */
const VkCommandBuffer cmd_bufs[] = {info.cmd};
VkFenceCreateInfo fenceInfo;
VkFence drawFence;
fenceInfo.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO;
fenceInfo.pNext = NULL;
fenceInfo.flags = 0;
vkCreateFence(info.device, &fenceInfo, NULL, &drawFence);
execute_queue_cmdbuf(info, cmd_bufs, drawFence);
do {
res = vkWaitForFences(info.device, 1, &drawFence, VK_TRUE, FENCE_TIMEOUT);
} while (res == VK_TIMEOUT);
assert(res == VK_SUCCESS);
vkDestroyFence(info.device, drawFence, NULL);
execute_present_image(info);
wait_seconds(1);
if (info.save_images) write_ppm(info, "input_attachment");
vkDestroySemaphore(info.device, info.imageAcquiredSemaphore, NULL);
vkDestroyImageView(info.device, input_attachment_view, NULL);
vkDestroyImage(info.device, input_image, NULL);
vkFreeMemory(info.device, input_memory, NULL);
destroy_pipeline(info);
destroy_pipeline_cache(info);
destroy_descriptor_pool(info);
destroy_framebuffers(info);
destroy_shaders(info);
destroy_renderpass(info);
destroy_descriptor_and_pipeline_layouts(info);
destroy_swap_chain(info);
destroy_command_buffer(info);
destroy_command_pool(info);
destroy_device(info);
destroy_window(info);
destroy_instance(info);
return 0;
}
int sample_main(int argc, char *argv[]) {
VkResult U_ASSERT_ONLY res;
struct sample_info info = {};
char sample_title[] = "SPIR-V Specialization";
const bool depthPresent = true;
process_command_line_args(info, argc, argv);
init_global_layer_properties(info);
init_instance_extension_names(info);
init_device_extension_names(info);
init_instance(info, sample_title);
init_enumerate_device(info);
init_window_size(info, 500, 500);
init_connection(info);
init_window(info);
init_swapchain_extension(info);
init_device(info);
init_command_pool(info);
init_command_buffer(info);
execute_begin_command_buffer(info);
init_device_queue(info);
init_swap_chain(info);
init_depth_buffer(info);
init_texture(info);
init_uniform_buffer(info);
init_descriptor_and_pipeline_layouts(info, true);
init_renderpass(info, depthPresent);
/* VULKAN_KEY_START */
// Pass in nullptr for fragment shader so we can setup specialization
init_shaders(info, vertShaderText, nullptr);
// This structure maps constant ids to data locations.
// NOTE: Padding bool to 32-bits for simplicity
const VkSpecializationMapEntry entries[] =
// id, offset, size
{{5, 0, sizeof(uint32_t)},
{7, 1 * sizeof(uint32_t), sizeof(uint32_t)},
{8, 2 * sizeof(uint32_t), sizeof(uint32_t)},
{9, 3 * sizeof(uint32_t), sizeof(uint32_t)}};
// Initialize the values we want our mini-ubershader to use
const bool drawUserColor = true;
const float userColor[] = {0.0f, 0.0f, 1.0f};
// Populate our data entry
uint32_t data[4] = {};
data[0] = drawUserColor ? 1 : 0;
((float *)data)[1] = userColor[0];
((float *)data)[2] = userColor[1];
((float *)data)[3] = userColor[2];
// Set up the info describing our spec map and data
const VkSpecializationInfo specInfo = {
4, // mapEntryCount
entries, // pMapEntries
4 * sizeof(float), // dataSize
data, // pData
};
// Provide the specialization data to fragment stage
info.shaderStages[1].sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO;
info.shaderStages[1].pNext = NULL;
info.shaderStages[1].pSpecializationInfo = &specInfo;
info.shaderStages[1].flags = 0;
info.shaderStages[1].stage = VK_SHADER_STAGE_FRAGMENT_BIT;
info.shaderStages[1].pName = "main";
VkShaderModuleCreateInfo moduleCreateInfo;
moduleCreateInfo.sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO;
moduleCreateInfo.pNext = NULL;
moduleCreateInfo.flags = 0;
if (use_SPIRV_asm) {
// Use the hand edited SPIR-V assembly
spv_context spvContext = spvContextCreate(SPV_ENV_VULKAN_1_0);
spv_binary fragmentBinary = {};
spv_diagnostic fragmentDiag = {};
spv_result_t fragmentResult = spvTextToBinary(spvContext, fragmentSPIRV_specialized.c_str(),
fragmentSPIRV_specialized.length(), &fragmentBinary, &fragmentDiag);
if (fragmentDiag) {
printf("Diagnostic info from fragment shader:\n");
spvDiagnosticPrint(fragmentDiag);
}
assert(fragmentResult == SPV_SUCCESS);
moduleCreateInfo.codeSize = fragmentBinary->wordCount * sizeof(unsigned int);
moduleCreateInfo.pCode = fragmentBinary->code;
spvDiagnosticDestroy(fragmentDiag);
spvContextDestroy(spvContext);
} else {
// Convert GLSL to SPIR-V
init_glslang();
std::vector<unsigned int> fragSpv;
bool U_ASSERT_ONLY retVal = GLSLtoSPV(VK_SHADER_STAGE_FRAGMENT_BIT, fragShaderText, fragSpv);
assert(retVal);
finalize_glslang();
moduleCreateInfo.codeSize = fragSpv.size() * sizeof(unsigned int);
moduleCreateInfo.pCode = fragSpv.data();
}
res = vkCreateShaderModule(info.device, &moduleCreateInfo, NULL, &info.shaderStages[1].module);
assert(res == VK_SUCCESS);
/* VULKAN_KEY_END */
init_framebuffers(info, depthPresent);
init_vertex_buffer(info, g_vb_texture_Data, sizeof(g_vb_texture_Data), sizeof(g_vb_texture_Data[0]), true);
init_descriptor_pool(info, true);
init_descriptor_set(info, true);
init_pipeline_cache(info);
init_pipeline(info, depthPresent);
init_presentable_image(info);
VkClearValue clear_values[2];
init_clear_color_and_depth(info, clear_values);
VkRenderPassBeginInfo rp_begin;
init_render_pass_begin_info(info, rp_begin);
rp_begin.clearValueCount = 2;
rp_begin.pClearValues = clear_values;
vkCmdBeginRenderPass(info.cmd, &rp_begin, VK_SUBPASS_CONTENTS_INLINE);
vkCmdBindPipeline(info.cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, info.pipeline);
vkCmdBindDescriptorSets(info.cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, info.pipeline_layout, 0, NUM_DESCRIPTOR_SETS,
info.desc_set.data(), 0, NULL);
const VkDeviceSize offsets[1] = {0};
vkCmdBindVertexBuffers(info.cmd, 0, 1, &info.vertex_buffer.buf, offsets);
init_viewports(info);
init_scissors(info);
vkCmdDraw(info.cmd, 12 * 3, 1, 0, 0);
vkCmdEndRenderPass(info.cmd);
res = vkEndCommandBuffer(info.cmd);
assert(res == VK_SUCCESS);
VkFence drawFence = {};
init_fence(info, drawFence);
VkPipelineStageFlags pipe_stage_flags = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
VkSubmitInfo submit_info = {};
init_submit_info(info, submit_info, pipe_stage_flags);
/* Queue the command buffer for execution */
res = vkQueueSubmit(info.graphics_queue, 1, &submit_info, drawFence);
assert(res == VK_SUCCESS);
/* Now present the image in the window */
VkPresentInfoKHR present = {};
init_present_info(info, present);
/* Make sure command buffer is finished before presenting */
do {
res = vkWaitForFences(info.device, 1, &drawFence, VK_TRUE, FENCE_TIMEOUT);
} while (res == VK_TIMEOUT);
assert(res == VK_SUCCESS);
res = vkQueuePresentKHR(info.present_queue, &present);
assert(res == VK_SUCCESS);
wait_seconds(1);
if (info.save_images) write_ppm(info, "spirv_specialization");
vkDestroyFence(info.device, drawFence, NULL);
vkDestroySemaphore(info.device, info.imageAcquiredSemaphore, NULL);
destroy_pipeline(info);
destroy_pipeline_cache(info);
destroy_textures(info);
destroy_descriptor_pool(info);
destroy_vertex_buffer(info);
destroy_framebuffers(info);
destroy_shaders(info);
destroy_renderpass(info);
destroy_descriptor_and_pipeline_layouts(info);
destroy_uniform_buffer(info);
destroy_depth_buffer(info);
destroy_swap_chain(info);
destroy_command_buffer(info);
destroy_command_pool(info);
destroy_device(info);
destroy_window(info);
destroy_instance(info);
return 0;
}
void VlkRenderer::do_the_thing(util::Path& dir) {
// Please keep in mind that this function is only for testing and so might be messy.
// Enumerate available physical devices
auto devices = vk_do_ritual(vkEnumeratePhysicalDevices, this->instance);
if (devices.empty()) {
throw Error(MSG(err) << "No Vulkan devices available.");
}
std::vector<std::pair<VkPhysicalDevice, SurfaceSupportDetails>> support_per_dev;
for (auto dev : devices) {
auto support = VlkGraphicsDevice::find_device_surface_support(dev, surface);
if (support) {
support_per_dev.emplace_back(dev, *support);
}
}
if (support_per_dev.empty()) {
throw Error(MSG(err) << "No valid Vulkan device available.");
}
// TODO rate devices based on capabilities
// Given an instance and surface, selects the best (fastest, most capable, etc.) graphics device
// which supports rendering onto that particular surface and constructs the object.
auto const& info = support_per_dev[0];
// Create a logical device with a single queue for both graphics and present
if (info.second.maybe_present_fam) {
throw 0;
}
VlkGraphicsDevice dev(info.first, { info.second.graphics_fam } );
VlkDrawableDisplay display(dev.get_device(), info.second);
// TODO reinit swapchain on window resize
auto vert = resources::ShaderSource(
resources::shader_lang_t::spirv,
resources::shader_stage_t::vertex,
util::Path(dir) / "assets/shaders/vert.spv"
);
auto frag = resources::ShaderSource(
resources::shader_lang_t::spirv,
resources::shader_stage_t::fragment,
util::Path(dir) / "assets/shaders/frag.spv"
);
VlkShaderProgram prog(dev.get_device(), { vert, frag } );
VkPipelineVertexInputStateCreateInfo cr_vert_in = {};
cr_vert_in.sType = VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO;
// all init'd to 0
VkPipelineInputAssemblyStateCreateInfo cr_in_asm = {};
cr_in_asm.sType = VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO;
cr_in_asm.topology = VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST;
cr_in_asm.primitiveRestartEnable = VK_FALSE;
VkViewport viewport = {};
viewport.x = 0.0f;
viewport.y = 0.0f;
viewport.width = display.extent.width;
viewport.height = display.extent.height;
viewport.minDepth = 0.0f;
viewport.maxDepth = 1.0f;
VkRect2D scissor = {};
scissor.offset = { 0, 0 };
scissor.extent = display.extent;
VkPipelineViewportStateCreateInfo cr_view = {};
cr_view.sType = VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO;
cr_view.viewportCount = 1;
cr_view.pViewports = &viewport;
cr_view.scissorCount = 1;
cr_view.pScissors = &scissor;
VkPipelineRasterizationStateCreateInfo cr_raster = {};
cr_raster.sType = VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO;
cr_raster.depthClampEnable = VK_FALSE;
cr_raster.rasterizerDiscardEnable = VK_FALSE;
cr_raster.polygonMode = VK_POLYGON_MODE_FILL;
cr_raster.lineWidth = 1.0f;
cr_raster.cullMode = VK_CULL_MODE_BACK_BIT;
cr_raster.frontFace = VK_FRONT_FACE_CLOCKWISE;
cr_raster.depthBiasEnable = VK_FALSE;
VkPipelineMultisampleStateCreateInfo cr_msaa = {};
cr_msaa.sType = VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO;
cr_msaa.sampleShadingEnable = VK_FALSE;
cr_msaa.rasterizationSamples = VK_SAMPLE_COUNT_1_BIT;
VkPipelineColorBlendAttachmentState blend_state = {};
blend_state.colorWriteMask = VK_COLOR_COMPONENT_R_BIT
| VK_COLOR_COMPONENT_G_BIT
| VK_COLOR_COMPONENT_B_BIT
| VK_COLOR_COMPONENT_A_BIT;
blend_state.blendEnable = VK_TRUE;
blend_state.srcColorBlendFactor = VK_BLEND_FACTOR_SRC_ALPHA;
blend_state.dstColorBlendFactor = VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA;
blend_state.colorBlendOp = VK_BLEND_OP_ADD;
blend_state.srcAlphaBlendFactor = VK_BLEND_FACTOR_ONE;
blend_state.dstAlphaBlendFactor = VK_BLEND_FACTOR_ZERO;
blend_state.alphaBlendOp = VK_BLEND_OP_ADD;
VkPipelineColorBlendStateCreateInfo cr_blend = {};
cr_blend.sType = VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO;
cr_blend.logicOpEnable = VK_FALSE;
cr_blend.attachmentCount = 1;
cr_blend.pAttachments = &blend_state;
VkPipelineLayoutCreateInfo cr_layout = {};
cr_layout.sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO;
// empty object
VkPipelineLayout layout;
VK_CALL_CHECKED(vkCreatePipelineLayout, dev.get_device(), &cr_layout, nullptr, &layout);
/// RENDERPASS
VkAttachmentDescription color_attachment = {};
color_attachment.format = display.format;
color_attachment.samples = VK_SAMPLE_COUNT_1_BIT;
color_attachment.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
color_attachment.storeOp = VK_ATTACHMENT_STORE_OP_STORE;
color_attachment.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
color_attachment.stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
color_attachment.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
color_attachment.finalLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
VkAttachmentReference color_attachment_ref = {};
color_attachment_ref.attachment = 0;
color_attachment_ref.layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
VkSubpassDescription subpass = {};
subpass.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS;
subpass.colorAttachmentCount = 1;
subpass.pColorAttachments = &color_attachment_ref;
VkSubpassDependency dep = {};
dep.srcSubpass = VK_SUBPASS_EXTERNAL;
dep.dstSubpass = 0;
dep.srcStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
dep.srcAccessMask = 0;
dep.dstStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
dep.dstAccessMask = VK_ACCESS_COLOR_ATTACHMENT_READ_BIT | VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
VkRenderPassCreateInfo cr_render_pass = {};
cr_render_pass.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO;
cr_render_pass.attachmentCount = 1;
cr_render_pass.pAttachments = &color_attachment;
cr_render_pass.subpassCount = 1;
cr_render_pass.pSubpasses = &subpass;
cr_render_pass.dependencyCount = 1;
cr_render_pass.pDependencies = &dep;
VkRenderPass render_pass;
VK_CALL_CHECKED(vkCreateRenderPass, dev.get_device(), &cr_render_pass, nullptr, &render_pass);
/// RENDERPASS
VkGraphicsPipelineCreateInfo cr_pipeline = {};
cr_pipeline.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO;
cr_pipeline.stageCount = 2;
cr_pipeline.pStages = prog.pipeline_stage_infos.data();
cr_pipeline.pVertexInputState = &cr_vert_in;
cr_pipeline.pInputAssemblyState = &cr_in_asm;
cr_pipeline.pViewportState = &cr_view;
cr_pipeline.pRasterizationState = &cr_raster;
cr_pipeline.pMultisampleState = &cr_msaa;
cr_pipeline.pDepthStencilState = nullptr;
cr_pipeline.pColorBlendState = &cr_blend;
cr_pipeline.pDynamicState = nullptr;
cr_pipeline.layout = layout;
cr_pipeline.renderPass = render_pass;
cr_pipeline.subpass = 0;
cr_pipeline.basePipelineHandle = VK_NULL_HANDLE;
cr_pipeline.basePipelineIndex = -1;
VkPipeline pipeline;
VK_CALL_CHECKED(vkCreateGraphicsPipelines, dev.get_device(), VK_NULL_HANDLE, 1, &cr_pipeline, nullptr, &pipeline);
std::vector<VkFramebuffer> fbufs;
for (auto view : display.image_views) {
VkFramebufferCreateInfo cr_fbuf = {};
cr_fbuf.sType = VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO;
cr_fbuf.renderPass = render_pass;
cr_fbuf.attachmentCount = 1;
cr_fbuf.pAttachments = &view;
cr_fbuf.width = display.extent.width;
cr_fbuf.height = display.extent.height;
cr_fbuf.layers = 1;
VkFramebuffer fbuf;
VK_CALL_CHECKED(vkCreateFramebuffer, dev.get_device(), &cr_fbuf, nullptr, &fbuf);
fbufs.push_back(fbuf);
}
VkCommandPoolCreateInfo cr_pool = {};
cr_pool.sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO;
cr_pool.queueFamilyIndex = info.second.graphics_fam;
cr_pool.flags = 0;
VkCommandPool pool;
VK_CALL_CHECKED(vkCreateCommandPool, dev.get_device(), &cr_pool, nullptr, &pool);
std::vector<VkCommandBuffer> cmd_bufs(fbufs.size());
VkCommandBufferAllocateInfo cr_cmd_bufs = {};
cr_cmd_bufs.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO;
cr_cmd_bufs.commandPool = pool;
cr_cmd_bufs.level = VK_COMMAND_BUFFER_LEVEL_PRIMARY;
cr_cmd_bufs.commandBufferCount = static_cast<uint32_t>(cmd_bufs.size());
VK_CALL_CHECKED(vkAllocateCommandBuffers, dev.get_device(), &cr_cmd_bufs, cmd_bufs.data());
for (size_t i = 0; i < cmd_bufs.size(); i++) {
auto cmd_buf = cmd_bufs[i];
auto fbuf = fbufs[i];
VkCommandBufferBeginInfo begin_info = {};
begin_info.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
begin_info.flags = VK_COMMAND_BUFFER_USAGE_SIMULTANEOUS_USE_BIT;
begin_info.pInheritanceInfo = nullptr;
vkBeginCommandBuffer(cmd_buf, &begin_info);
VkRenderPassBeginInfo cmd_render = {};
cmd_render.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
cmd_render.renderPass = render_pass;
cmd_render.framebuffer = fbuf;
cmd_render.renderArea.offset = { 0, 0 };
cmd_render.renderArea.extent = display.extent;
VkClearValue clear_color = {{{ 0.0f, 0.0f, 0.0f, 1.0f }}};
cmd_render.clearValueCount = 1;
cmd_render.pClearValues = &clear_color;
vkCmdBeginRenderPass(cmd_buf, &cmd_render, VK_SUBPASS_CONTENTS_INLINE);
vkCmdBindPipeline(cmd_buf, VK_PIPELINE_BIND_POINT_GRAPHICS, pipeline);
vkCmdDraw(cmd_buf, 3, 1, 0, 0);
vkCmdEndRenderPass(cmd_buf);
VK_CALL_CHECKED(vkEndCommandBuffer, cmd_buf);
VkSemaphoreCreateInfo cr_sem = {};
cr_sem.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO;
VkSemaphore sem_image_ready;
VkSemaphore sem_render_done;
VK_CALL_CHECKED(vkCreateSemaphore, dev.get_device(), &cr_sem, nullptr, &sem_image_ready);
VK_CALL_CHECKED(vkCreateSemaphore, dev.get_device(), &cr_sem, nullptr, &sem_render_done);
uint32_t img_idx = 0;
VK_CALL_CHECKED(vkAcquireNextImageKHR, dev.get_device(), display.swapchain, std::numeric_limits<uint64_t>::max(), sem_image_ready, VK_NULL_HANDLE, &img_idx);
VkSubmitInfo submit = {};
submit.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
submit.waitSemaphoreCount = 1;
submit.pWaitSemaphores = &sem_image_ready;
VkPipelineStageFlags mask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
submit.pWaitDstStageMask = &mask;
submit.commandBufferCount = 1;
submit.pCommandBuffers = &cmd_bufs[img_idx];
submit.signalSemaphoreCount = 1;
submit.pSignalSemaphores = &sem_render_done;
VK_CALL_CHECKED(vkQueueSubmit, dev.get_queue(0), 1, &submit, VK_NULL_HANDLE);
VkPresentInfoKHR present_info = {};
present_info.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR;
present_info.waitSemaphoreCount = 1;
present_info.pWaitSemaphores = &sem_render_done;
present_info.swapchainCount = 1;
present_info.pSwapchains = &display.swapchain;
present_info.pImageIndices = &img_idx;
present_info.pResults = nullptr;
vkQueuePresentKHR(dev.get_queue(0), &present_info);
vkQueueWaitIdle(dev.get_queue(0));
vkDeviceWaitIdle(dev.get_device());
}
}
int sample_main(int argc, char *argv[]) {
VkResult U_ASSERT_ONLY res;
struct sample_info info = {};
char sample_title[] = "Secondary command buffers";
const bool depthPresent = true;
process_command_line_args(info, argc, argv);
init_global_layer_properties(info);
init_instance_extension_names(info);
init_device_extension_names(info);
init_instance(info, sample_title);
init_enumerate_device(info);
init_window_size(info, 500, 500);
init_connection(info);
init_window(info);
init_swapchain_extension(info);
init_device(info);
init_command_pool(info);
init_command_buffer(info);
execute_begin_command_buffer(info);
init_device_queue(info);
init_swap_chain(info);
init_depth_buffer(info);
init_uniform_buffer(info);
init_descriptor_and_pipeline_layouts(info, true);
init_renderpass(info, depthPresent, true, VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL);
init_shaders(info, vertShaderText, fragShaderText);
init_framebuffers(info, depthPresent);
init_vertex_buffer(info, g_vb_texture_Data, sizeof(g_vb_texture_Data), sizeof(g_vb_texture_Data[0]), true);
init_pipeline_cache(info);
init_pipeline(info, depthPresent);
// we have to set up a couple of things by hand, but this
// isn't any different to other examples
// get two different textures
init_texture(info, "green.ppm");
VkDescriptorImageInfo greenTex = info.texture_data.image_info;
init_texture(info, "lunarg.ppm");
VkDescriptorImageInfo lunargTex = info.texture_data.image_info;
// create two identical descriptor sets, each with a different texture but
// identical UBOa
VkDescriptorPoolSize pool_size[2];
pool_size[0].type = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
pool_size[0].descriptorCount = 2;
pool_size[1].type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
pool_size[1].descriptorCount = 2;
VkDescriptorPoolCreateInfo descriptor_pool = {};
descriptor_pool.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;
descriptor_pool.pNext = NULL;
descriptor_pool.flags = 0;
descriptor_pool.maxSets = 2;
descriptor_pool.poolSizeCount = 2;
descriptor_pool.pPoolSizes = pool_size;
res = vkCreateDescriptorPool(info.device, &descriptor_pool, NULL, &info.desc_pool);
assert(res == VK_SUCCESS);
VkDescriptorSetLayout layouts[] = {info.desc_layout[0], info.desc_layout[0]};
VkDescriptorSetAllocateInfo alloc_info[1];
alloc_info[0].sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO;
alloc_info[0].pNext = NULL;
alloc_info[0].descriptorPool = info.desc_pool;
alloc_info[0].descriptorSetCount = 2;
alloc_info[0].pSetLayouts = layouts;
info.desc_set.resize(2);
res = vkAllocateDescriptorSets(info.device, alloc_info, info.desc_set.data());
assert(res == VK_SUCCESS);
VkWriteDescriptorSet writes[2];
writes[0].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
writes[0].pNext = NULL;
writes[0].dstSet = info.desc_set[0];
writes[0].descriptorCount = 1;
writes[0].descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
writes[0].pBufferInfo = &info.uniform_data.buffer_info;
writes[0].dstArrayElement = 0;
writes[0].dstBinding = 0;
writes[1].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
writes[1].pNext = NULL;
writes[1].dstSet = info.desc_set[0];
writes[1].dstBinding = 1;
writes[1].descriptorCount = 1;
writes[1].descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
writes[1].pImageInfo = &greenTex;
writes[1].dstArrayElement = 0;
vkUpdateDescriptorSets(info.device, 2, writes, 0, NULL);
writes[0].dstSet = writes[1].dstSet = info.desc_set[1];
writes[1].pImageInfo = &lunargTex;
vkUpdateDescriptorSets(info.device, 2, writes, 0, NULL);
/* VULKAN_KEY_START */
// create four secondary command buffers, for each quadrant of the screen
VkCommandBufferAllocateInfo cmdalloc = {};
cmdalloc.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO;
cmdalloc.pNext = NULL;
cmdalloc.commandPool = info.cmd_pool;
cmdalloc.level = VK_COMMAND_BUFFER_LEVEL_SECONDARY;
cmdalloc.commandBufferCount = 4;
VkCommandBuffer secondary_cmds[4];
res = vkAllocateCommandBuffers(info.device, &cmdalloc, secondary_cmds);
assert(res == VK_SUCCESS);
VkClearValue clear_values[2];
clear_values[0].color.float32[0] = 0.2f;
clear_values[0].color.float32[1] = 0.2f;
clear_values[0].color.float32[2] = 0.2f;
clear_values[0].color.float32[3] = 0.2f;
clear_values[1].depthStencil.depth = 1.0f;
clear_values[1].depthStencil.stencil = 0;
VkSemaphore imageAcquiredSemaphore;
VkSemaphoreCreateInfo imageAcquiredSemaphoreCreateInfo;
imageAcquiredSemaphoreCreateInfo.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO;
imageAcquiredSemaphoreCreateInfo.pNext = NULL;
imageAcquiredSemaphoreCreateInfo.flags = 0;
res = vkCreateSemaphore(info.device, &imageAcquiredSemaphoreCreateInfo, NULL, &imageAcquiredSemaphore);
assert(res == VK_SUCCESS);
// Get the index of the next available swapchain image:
res = vkAcquireNextImageKHR(info.device, info.swap_chain, UINT64_MAX, imageAcquiredSemaphore, VK_NULL_HANDLE,
&info.current_buffer);
// TODO: Deal with the VK_SUBOPTIMAL_KHR and VK_ERROR_OUT_OF_DATE_KHR
// return codes
assert(res == VK_SUCCESS);
set_image_layout(info, info.buffers[info.current_buffer].image, VK_IMAGE_ASPECT_COLOR_BIT, VK_IMAGE_LAYOUT_UNDEFINED,
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT,
VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT);
const VkDeviceSize offsets[1] = {0};
VkViewport viewport;
viewport.height = 200.0f;
viewport.width = 200.0f;
viewport.minDepth = (float)0.0f;
viewport.maxDepth = (float)1.0f;
viewport.x = 0;
viewport.y = 0;
VkRect2D scissor;
scissor.extent.width = info.width;
scissor.extent.height = info.height;
scissor.offset.x = 0;
scissor.offset.y = 0;
// now we record four separate command buffers, one for each quadrant of the
// screen
VkCommandBufferInheritanceInfo cmd_buf_inheritance_info = {};
cmd_buf_inheritance_info.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_INHERITANCE_INFO, cmd_buf_inheritance_info.pNext = NULL;
cmd_buf_inheritance_info.renderPass = info.render_pass;
cmd_buf_inheritance_info.subpass = 0;
cmd_buf_inheritance_info.framebuffer = info.framebuffers[info.current_buffer];
cmd_buf_inheritance_info.occlusionQueryEnable = VK_FALSE;
cmd_buf_inheritance_info.queryFlags = 0;
cmd_buf_inheritance_info.pipelineStatistics = 0;
VkCommandBufferBeginInfo secondary_begin = {};
secondary_begin.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
secondary_begin.pNext = NULL;
secondary_begin.flags = VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT | VK_COMMAND_BUFFER_USAGE_RENDER_PASS_CONTINUE_BIT;
secondary_begin.pInheritanceInfo = &cmd_buf_inheritance_info;
for (int i = 0; i < 4; i++) {
vkBeginCommandBuffer(secondary_cmds[i], &secondary_begin);
vkCmdBindPipeline(secondary_cmds[i], VK_PIPELINE_BIND_POINT_GRAPHICS, info.pipeline);
vkCmdBindDescriptorSets(secondary_cmds[i], VK_PIPELINE_BIND_POINT_GRAPHICS, info.pipeline_layout, 0, 1,
&info.desc_set[i == 0 || i == 3], 0, NULL);
vkCmdBindVertexBuffers(secondary_cmds[i], 0, 1, &info.vertex_buffer.buf, offsets);
viewport.x = 25.0f + 250.0f * (i % 2);
viewport.y = 25.0f + 250.0f * (i / 2);
vkCmdSetViewport(secondary_cmds[i], 0, NUM_VIEWPORTS, &viewport);
vkCmdSetScissor(secondary_cmds[i], 0, NUM_SCISSORS, &scissor);
vkCmdDraw(secondary_cmds[i], 12 * 3, 1, 0, 0);
vkEndCommandBuffer(secondary_cmds[i]);
}
VkRenderPassBeginInfo rp_begin;
rp_begin.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
rp_begin.pNext = NULL;
rp_begin.renderPass = info.render_pass;
rp_begin.framebuffer = info.framebuffers[info.current_buffer];
rp_begin.renderArea.offset.x = 0;
rp_begin.renderArea.offset.y = 0;
rp_begin.renderArea.extent.width = info.width;
rp_begin.renderArea.extent.height = info.height;
rp_begin.clearValueCount = 2;
rp_begin.pClearValues = clear_values;
// specifying VK_SUBPASS_CONTENTS_SECONDARY_COMMAND_BUFFERS means this
// render pass may
// ONLY call vkCmdExecuteCommands
vkCmdBeginRenderPass(info.cmd, &rp_begin, VK_SUBPASS_CONTENTS_SECONDARY_COMMAND_BUFFERS);
vkCmdExecuteCommands(info.cmd, 4, secondary_cmds);
vkCmdEndRenderPass(info.cmd);
VkImageMemoryBarrier prePresentBarrier = {};
prePresentBarrier.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
prePresentBarrier.pNext = NULL;
prePresentBarrier.srcAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
prePresentBarrier.dstAccessMask = VK_ACCESS_MEMORY_READ_BIT;
prePresentBarrier.oldLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
prePresentBarrier.newLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
prePresentBarrier.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
prePresentBarrier.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
prePresentBarrier.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
prePresentBarrier.subresourceRange.baseMipLevel = 0;
prePresentBarrier.subresourceRange.levelCount = 1;
prePresentBarrier.subresourceRange.baseArrayLayer = 0;
prePresentBarrier.subresourceRange.layerCount = 1;
prePresentBarrier.image = info.buffers[info.current_buffer].image;
vkCmdPipelineBarrier(info.cmd, VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT, VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT, 0, 0, NULL,
0, NULL, 1, &prePresentBarrier);
res = vkEndCommandBuffer(info.cmd);
assert(res == VK_SUCCESS);
const VkCommandBuffer cmd_bufs[] = {info.cmd};
VkFenceCreateInfo fenceInfo;
VkFence drawFence;
fenceInfo.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO;
fenceInfo.pNext = NULL;
fenceInfo.flags = 0;
vkCreateFence(info.device, &fenceInfo, NULL, &drawFence);
VkPipelineStageFlags pipe_stage_flags = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
VkSubmitInfo submit_info[1] = {};
submit_info[0].pNext = NULL;
submit_info[0].sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
submit_info[0].waitSemaphoreCount = 1;
submit_info[0].pWaitSemaphores = &imageAcquiredSemaphore;
submit_info[0].pWaitDstStageMask = &pipe_stage_flags;
submit_info[0].commandBufferCount = 1;
submit_info[0].pCommandBuffers = cmd_bufs;
submit_info[0].signalSemaphoreCount = 0;
submit_info[0].pSignalSemaphores = NULL;
/* Queue the command buffer for execution */
res = vkQueueSubmit(info.graphics_queue, 1, submit_info, drawFence);
assert(res == VK_SUCCESS);
/* Now present the image in the window */
VkPresentInfoKHR present;
present.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR;
present.pNext = NULL;
present.swapchainCount = 1;
present.pSwapchains = &info.swap_chain;
present.pImageIndices = &info.current_buffer;
present.pWaitSemaphores = NULL;
present.waitSemaphoreCount = 0;
present.pResults = NULL;
/* Make sure command buffer is finished before presenting */
do {
res = vkWaitForFences(info.device, 1, &drawFence, VK_TRUE, FENCE_TIMEOUT);
} while (res == VK_TIMEOUT);
assert(res == VK_SUCCESS);
res = vkQueuePresentKHR(info.present_queue, &present);
assert(res == VK_SUCCESS);
wait_seconds(1);
if (info.save_images) write_ppm(info, "secondary_command_buffer");
vkFreeCommandBuffers(info.device, info.cmd_pool, 4, secondary_cmds);
/* VULKAN_KEY_END */
vkDestroyFence(info.device, drawFence, NULL);
vkDestroySemaphore(info.device, imageAcquiredSemaphore, NULL);
destroy_pipeline(info);
destroy_pipeline_cache(info);
destroy_textures(info);
destroy_descriptor_pool(info);
destroy_vertex_buffer(info);
destroy_framebuffers(info);
destroy_shaders(info);
destroy_renderpass(info);
destroy_descriptor_and_pipeline_layouts(info);
destroy_uniform_buffer(info);
destroy_depth_buffer(info);
destroy_swap_chain(info);
destroy_command_buffer(info);
destroy_command_pool(info);
destroy_device(info);
destroy_window(info);
destroy_instance(info);
return 0;
}
static void *per_thread_code(void *arg) {
/* This code should be executed by each of the three threads. It will */
/* create a vertex buffer with position and color per vertex, then load */
/* commands into the thread's designated command buffer to draw the */
/* triangle */
VkResult U_ASSERT_ONLY res;
size_t threadNum = (size_t)arg;
VkCommandPoolCreateInfo poolInfo;
poolInfo.sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO;
poolInfo.pNext = NULL;
poolInfo.queueFamilyIndex = info.graphics_queue_family_index;
poolInfo.flags = 0;
vkCreateCommandPool(info.device, &poolInfo, NULL,
&threadCmdPools[threadNum]);
VkCommandBufferAllocateInfo cmdBufInfo;
cmdBufInfo.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO;
cmdBufInfo.pNext = NULL;
cmdBufInfo.commandBufferCount = 1;
cmdBufInfo.commandPool = threadCmdPools[threadNum];
cmdBufInfo.level = VK_COMMAND_BUFFER_LEVEL_PRIMARY;
vkAllocateCommandBuffers(info.device, &cmdBufInfo,
&threadCmdBufs[threadNum]);
VkBufferCreateInfo buf_info = {};
buf_info.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO;
buf_info.pNext = NULL;
buf_info.usage = VK_BUFFER_USAGE_VERTEX_BUFFER_BIT;
buf_info.size = 3 * sizeof(triData[0]);
buf_info.queueFamilyIndexCount = 0;
buf_info.pQueueFamilyIndices = NULL;
buf_info.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
buf_info.flags = 0;
res = vkCreateBuffer(info.device, &buf_info, NULL,
&vertex_buffer[threadNum].buf);
assert(res == VK_SUCCESS);
VkMemoryRequirements mem_reqs;
vkGetBufferMemoryRequirements(info.device, vertex_buffer[threadNum].buf,
&mem_reqs);
VkMemoryAllocateInfo alloc_info = {};
alloc_info.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
alloc_info.pNext = NULL;
alloc_info.memoryTypeIndex = 0;
alloc_info.allocationSize = mem_reqs.size;
bool pass;
pass = memory_type_from_properties(info, mem_reqs.memoryTypeBits,
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT,
&alloc_info.memoryTypeIndex);
assert(pass);
res = vkAllocateMemory(info.device, &alloc_info, NULL,
&(vertex_buffer[threadNum].mem));
assert(res == VK_SUCCESS);
uint8_t *pData;
res = vkMapMemory(info.device, vertex_buffer[threadNum].mem, 0,
mem_reqs.size, 0, (void **)&pData);
assert(res == VK_SUCCESS);
memcpy(pData, &triData[threadNum * 3], 3 * sizeof(triData[0]));
vkUnmapMemory(info.device, vertex_buffer[threadNum].mem);
res = vkBindBufferMemory(info.device, vertex_buffer[threadNum].buf,
vertex_buffer[threadNum].mem, 0);
assert(res == VK_SUCCESS);
VkCommandBufferBeginInfo cmd_buf_info = {};
cmd_buf_info.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
cmd_buf_info.pNext = NULL;
cmd_buf_info.flags = 0;
cmd_buf_info.pInheritanceInfo = NULL;
res = vkBeginCommandBuffer(threadCmdBufs[threadNum], &cmd_buf_info);
assert(res == VK_SUCCESS);
VkRenderPassBeginInfo rp_begin;
rp_begin.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
rp_begin.pNext = NULL;
rp_begin.renderPass = info.render_pass;
rp_begin.framebuffer = info.framebuffers[info.current_buffer];
rp_begin.renderArea.offset.x = 0;
rp_begin.renderArea.offset.y = 0;
rp_begin.renderArea.extent.width = info.width;
rp_begin.renderArea.extent.height = info.height;
rp_begin.clearValueCount = 0;
rp_begin.pClearValues = NULL;
vkCmdBeginRenderPass(threadCmdBufs[threadNum], &rp_begin,
VK_SUBPASS_CONTENTS_INLINE);
vkCmdBindPipeline(threadCmdBufs[threadNum], VK_PIPELINE_BIND_POINT_GRAPHICS,
info.pipeline);
const VkDeviceSize offsets[1] = {0};
vkCmdBindVertexBuffers(threadCmdBufs[threadNum], 0, 1,
&vertex_buffer[threadNum].buf, offsets);
VkViewport viewport;
viewport.height = (float)info.height;
viewport.width = (float)info.width;
viewport.minDepth = (float)0.0f;
viewport.maxDepth = (float)1.0f;
viewport.x = 0;
viewport.y = 0;
vkCmdSetViewport(threadCmdBufs[threadNum], 0, NUM_VIEWPORTS, &viewport);
VkRect2D scissor;
scissor.extent.width = info.width;
scissor.extent.height = info.height;
scissor.offset.x = 0;
scissor.offset.y = 0;
vkCmdSetScissor(threadCmdBufs[threadNum], 0, NUM_SCISSORS, &scissor);
vkCmdDraw(threadCmdBufs[threadNum], 3, 1, 0, 0);
vkCmdEndRenderPass(threadCmdBufs[threadNum]);
res = vkEndCommandBuffer(threadCmdBufs[threadNum]);
assert(res == VK_SUCCESS);
return NULL;
}