int sample_main(int argc, char *argv[]) {
VkResult U_ASSERT_ONLY res;
struct sample_info info = {};
char sample_title[] = "Copy/Blit Image";
VkImageCreateInfo image_info;
VkImage bltSrcImage;
VkImage bltDstImage;
VkMemoryRequirements memReq;
VkMemoryAllocateInfo memAllocInfo;
VkDeviceMemory dmem;
unsigned char *pImgMem;
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, 640, 640);
init_connection(info);
init_window(info);
init_swapchain_extension(info);
VkSurfaceCapabilitiesKHR surfCapabilities;
res = vkGetPhysicalDeviceSurfaceCapabilitiesKHR(info.gpus[0], info.surface, &surfCapabilities);
if (!(surfCapabilities.supportedUsageFlags & VK_IMAGE_USAGE_TRANSFER_DST_BIT)) {
std::cout << "Surface cannot be destination of blit - abort \n";
exit(-1);
}
init_device(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_COLOR_ATTACHMENT_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT);
/* VULKAN_KEY_START */
VkFormatProperties formatProps;
vkGetPhysicalDeviceFormatProperties(info.gpus[0], info.format, &formatProps);
assert((formatProps.linearTilingFeatures & VK_FORMAT_FEATURE_BLIT_SRC_BIT) && "Format cannot be used as transfer source");
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);
// We'll be blitting into the presentable image, set the layout accordingly
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);
// Create an image, map it, and write some values to the image
image_info.sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO;
image_info.pNext = NULL;
image_info.imageType = VK_IMAGE_TYPE_2D;
image_info.format = info.format;
image_info.extent.width = info.width;
image_info.extent.height = info.height;
image_info.extent.depth = 1;
image_info.mipLevels = 1;
image_info.arrayLayers = 1;
image_info.samples = NUM_SAMPLES;
image_info.queueFamilyIndexCount = 0;
image_info.pQueueFamilyIndices = NULL;
image_info.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
image_info.usage = VK_IMAGE_USAGE_TRANSFER_SRC_BIT;
image_info.flags = 0;
image_info.tiling = VK_IMAGE_TILING_LINEAR;
image_info.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
res = vkCreateImage(info.device, &image_info, NULL, &bltSrcImage);
memAllocInfo.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
memAllocInfo.pNext = NULL;
vkGetImageMemoryRequirements(info.device, bltSrcImage, &memReq);
bool pass = memory_type_from_properties(info, memReq.memoryTypeBits, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT,
&memAllocInfo.memoryTypeIndex);
assert(pass);
memAllocInfo.allocationSize = memReq.size;
res = vkAllocateMemory(info.device, &memAllocInfo, NULL, &dmem);
res = vkBindImageMemory(info.device, bltSrcImage, dmem, 0);
set_image_layout(info, bltSrcImage, VK_IMAGE_ASPECT_COLOR_BIT, VK_IMAGE_LAYOUT_UNDEFINED, VK_IMAGE_LAYOUT_GENERAL,
VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT, VK_PIPELINE_STAGE_HOST_BIT);
res = vkEndCommandBuffer(info.cmd);
assert(res == VK_SUCCESS);
VkFence cmdFence;
init_fence(info, cmdFence);
VkPipelineStageFlags pipe_stage_flags = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
VkSubmitInfo submit_info = {};
submit_info.pNext = NULL;
submit_info.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
submit_info.waitSemaphoreCount = 1;
submit_info.pWaitSemaphores = &imageAcquiredSemaphore;
submit_info.pWaitDstStageMask = &pipe_stage_flags;
submit_info.commandBufferCount = 1;
submit_info.pCommandBuffers = &info.cmd;
submit_info.signalSemaphoreCount = 0;
submit_info.pSignalSemaphores = NULL;
/* Queue the command buffer for execution */
res = vkQueueSubmit(info.graphics_queue, 1, &submit_info, cmdFence);
assert(res == VK_SUCCESS);
/* Make sure command buffer is finished before mapping */
do {
res = vkWaitForFences(info.device, 1, &cmdFence, VK_TRUE, FENCE_TIMEOUT);
} while (res == VK_TIMEOUT);
assert(res == VK_SUCCESS);
vkDestroyFence(info.device, cmdFence, NULL);
res = vkMapMemory(info.device, dmem, 0, memReq.size, 0, (void **)&pImgMem);
// Checkerboard of 8x8 pixel squares
for (int row = 0; row < info.height; row++) {
for (int col = 0; col < info.width; col++) {
unsigned char rgb = (((row & 0x8) == 0) ^ ((col & 0x8) == 0)) * 255;
pImgMem[0] = rgb;
pImgMem[1] = rgb;
pImgMem[2] = rgb;
pImgMem[3] = 255;
pImgMem += 4;
}
}
// Flush the mapped memory and then unmap it Assume it isn't coherent since
// we didn't really confirm
VkMappedMemoryRange memRange;
memRange.sType = VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE;
memRange.pNext = NULL;
memRange.memory = dmem;
memRange.offset = 0;
memRange.size = memReq.size;
res = vkFlushMappedMemoryRanges(info.device, 1, &memRange);
vkUnmapMemory(info.device, dmem);
vkResetCommandBuffer(info.cmd, 0);
execute_begin_command_buffer(info);
// Intend to blit from this image, set the layout accordingly
set_image_layout(info, bltSrcImage, VK_IMAGE_ASPECT_COLOR_BIT, VK_IMAGE_LAYOUT_GENERAL, VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
VK_PIPELINE_STAGE_HOST_BIT, VK_PIPELINE_STAGE_TRANSFER_BIT);
bltDstImage = info.buffers[info.current_buffer].image;
// Do a 32x32 blit to all of the dst image - should get big squares
VkImageBlit region;
region.srcSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
region.srcSubresource.mipLevel = 0;
region.srcSubresource.baseArrayLayer = 0;
region.srcSubresource.layerCount = 1;
region.srcOffsets[0].x = 0;
region.srcOffsets[0].y = 0;
region.srcOffsets[0].z = 0;
region.srcOffsets[1].x = 32;
region.srcOffsets[1].y = 32;
region.srcOffsets[1].z = 1;
region.dstSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
region.dstSubresource.mipLevel = 0;
region.dstSubresource.baseArrayLayer = 0;
region.dstSubresource.layerCount = 1;
region.dstOffsets[0].x = 0;
region.dstOffsets[0].y = 0;
region.dstOffsets[0].z = 0;
region.dstOffsets[1].x = info.width;
region.dstOffsets[1].y = info.height;
region.dstOffsets[1].z = 1;
vkCmdBlitImage(info.cmd, bltSrcImage, VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL, bltDstImage, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
1, ®ion, VK_FILTER_LINEAR);
// Use a barrier to make sure the blit is finished before the copy starts
VkImageMemoryBarrier memBarrier = {};
memBarrier.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
memBarrier.pNext = NULL;
memBarrier.srcAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT;
memBarrier.dstAccessMask = VK_ACCESS_MEMORY_READ_BIT;
memBarrier.oldLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL;
memBarrier.newLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL;
memBarrier.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
memBarrier.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
memBarrier.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
memBarrier.subresourceRange.baseMipLevel = 0;
memBarrier.subresourceRange.levelCount = 1;
memBarrier.subresourceRange.baseArrayLayer = 0;
memBarrier.subresourceRange.layerCount = 1;
memBarrier.image = bltDstImage;
vkCmdPipelineBarrier(info.cmd, VK_PIPELINE_STAGE_TRANSFER_BIT, VK_PIPELINE_STAGE_TRANSFER_BIT, 0, 0, NULL, 0, NULL, 1,
&memBarrier);
// Do a image copy to part of the dst image - checks should stay small
VkImageCopy cregion;
cregion.srcSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
cregion.srcSubresource.mipLevel = 0;
cregion.srcSubresource.baseArrayLayer = 0;
cregion.srcSubresource.layerCount = 1;
cregion.srcOffset.x = 0;
cregion.srcOffset.y = 0;
cregion.srcOffset.z = 0;
cregion.dstSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
cregion.dstSubresource.mipLevel = 0;
cregion.dstSubresource.baseArrayLayer = 0;
cregion.dstSubresource.layerCount = 1;
cregion.dstOffset.x = 256;
cregion.dstOffset.y = 256;
cregion.dstOffset.z = 0;
cregion.extent.width = 128;
cregion.extent.height = 128;
cregion.extent.depth = 1;
vkCmdCopyImage(info.cmd, bltSrcImage, VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL, bltDstImage, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
1, &cregion);
VkImageMemoryBarrier prePresentBarrier = {};
prePresentBarrier.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
prePresentBarrier.pNext = NULL;
prePresentBarrier.srcAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT;
prePresentBarrier.dstAccessMask = VK_ACCESS_MEMORY_READ_BIT;
prePresentBarrier.oldLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_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);
VkFenceCreateInfo fenceInfo;
VkFence drawFence;
fenceInfo.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO;
fenceInfo.pNext = NULL;
fenceInfo.flags = 0;
vkCreateFence(info.device, &fenceInfo, NULL, &drawFence);
submit_info.pNext = NULL;
submit_info.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
submit_info.waitSemaphoreCount = 0;
submit_info.pWaitSemaphores = NULL;
submit_info.pWaitDstStageMask = NULL;
submit_info.commandBufferCount = 1;
submit_info.pCommandBuffers = &info.cmd;
submit_info.signalSemaphoreCount = 0;
submit_info.pSignalSemaphores = NULL;
/* Queue the command buffer for execution */
res = vkQueueSubmit(info.graphics_queue, 1, &submit_info, drawFence);
assert(res == VK_SUCCESS);
res = vkQueueWaitIdle(info.graphics_queue);
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);
/* VULKAN_KEY_END */
if (info.save_images) write_ppm(info, "copyblitimage");
vkDestroySemaphore(info.device, imageAcquiredSemaphore, NULL);
vkDestroyFence(info.device, drawFence, NULL);
vkDestroyImage(info.device, bltSrcImage, NULL);
vkFreeMemory(info.device, dmem, NULL);
destroy_swap_chain(info);
destroy_command_buffer(info);
destroy_command_pool(info);
destroy_device(info);
destroy_window(info);
destroy_instance(info);
return 0;
}
// clang-format on
int sample_main() {
VkResult U_ASSERT_ONLY res;
struct sample_info info = {};
char sample_title[] = "SPIR-V Assembly";
const bool depthPresent = true;
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 */
// Init the assembler context
spv_context spvContext = spvContextCreate();
// Convert the vertex assembly into binary format
spv_binary vertexBinary = {};
spv_diagnostic vertexDiag = {};
spv_result_t vertexResult =
spvTextToBinary(spvContext, vertexSPIRV.c_str(), vertexSPIRV.length(),
&vertexBinary, &vertexDiag);
if (vertexDiag) {
printf("Diagnostic info from vertex shader:\n");
spvDiagnosticPrint(vertexDiag);
}
assert(vertexResult == SPV_SUCCESS);
// Convert the fragment assembly into binary format
spv_binary fragmentBinary = {};
spv_diagnostic fragmentDiag = {};
spv_result_t fragmentResult =
spvTextToBinary(spvContext, fragmentSPIRV.c_str(),
fragmentSPIRV.length(), &fragmentBinary, &fragmentDiag);
if (fragmentDiag) {
printf("Diagnostic info from fragment shader:\n");
spvDiagnosticPrint(fragmentDiag);
}
assert(fragmentResult == SPV_SUCCESS);
info.shaderStages[0].sType =
VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO;
info.shaderStages[0].pNext = NULL;
info.shaderStages[0].pSpecializationInfo = NULL;
info.shaderStages[0].flags = 0;
info.shaderStages[0].stage = VK_SHADER_STAGE_VERTEX_BIT;
info.shaderStages[0].pName = "main";
VkShaderModuleCreateInfo moduleCreateInfo;
moduleCreateInfo.sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO;
moduleCreateInfo.pNext = NULL;
moduleCreateInfo.flags = 0;
// Use wordCount and code pointers from the spv_binary
moduleCreateInfo.codeSize = vertexBinary->wordCount * sizeof(unsigned int);
moduleCreateInfo.pCode = vertexBinary->code;
res = vkCreateShaderModule(info.device, &moduleCreateInfo, NULL,
&info.shaderStages[0].module);
assert(res == VK_SUCCESS);
info.shaderStages[1].sType =
VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO;
info.shaderStages[1].pNext = NULL;
info.shaderStages[1].pSpecializationInfo = NULL;
info.shaderStages[1].flags = 0;
info.shaderStages[1].stage = VK_SHADER_STAGE_FRAGMENT_BIT;
info.shaderStages[1].pName = "main";
moduleCreateInfo.sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO;
moduleCreateInfo.pNext = NULL;
moduleCreateInfo.flags = 0;
// Use wordCount and code pointers from the spv_binary
moduleCreateInfo.codeSize =
fragmentBinary->wordCount * sizeof(unsigned int);
moduleCreateInfo.pCode = fragmentBinary->code;
res = vkCreateShaderModule(info.device, &moduleCreateInfo, NULL,
&info.shaderStages[1].module);
assert(res == VK_SUCCESS);
// Clean up the diagnostics
spvDiagnosticDestroy(vertexDiag);
spvDiagnosticDestroy(fragmentDiag);
// Clean up the assembler context
spvContextDestroy(spvContext);
/* 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);
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);
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[] = "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);
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, 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);
init_descriptor_pool(info, false);
init_descriptor_set(info, false);
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, NULL,
&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, 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);
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, "drawcube");
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;
char sample_title[] = "MT Cmd Buffer Sample";
const bool depthPresent = 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);
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);
VkSemaphoreCreateInfo presentCompleteSemaphoreCreateInfo;
presentCompleteSemaphoreCreateInfo.sType =
VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO;
presentCompleteSemaphoreCreateInfo.pNext = NULL;
presentCompleteSemaphoreCreateInfo.flags = 0;
res = vkCreateSemaphore(info.device, &presentCompleteSemaphoreCreateInfo,
NULL, &info.presentCompleteSemaphore);
assert(res == VK_SUCCESS);
// Get the index of the next available swapchain image:
res = vkAcquireNextImageKHR(info.device, info.swap_chain, UINT64_MAX,
info.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);
VkPipelineLayoutCreateInfo pPipelineLayoutCreateInfo = {};
pPipelineLayoutCreateInfo.sType =
VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO;
pPipelineLayoutCreateInfo.pNext = NULL;
pPipelineLayoutCreateInfo.pushConstantRangeCount = 0;
pPipelineLayoutCreateInfo.pPushConstantRanges = NULL;
pPipelineLayoutCreateInfo.setLayoutCount = 0;
pPipelineLayoutCreateInfo.pSetLayouts = NULL;
res = vkCreatePipelineLayout(info.device, &pPipelineLayoutCreateInfo, NULL,
&info.pipeline_layout);
assert(res == VK_SUCCESS);
init_renderpass(
info, depthPresent,
false); // Can't clear in renderpass load because we re-use pipeline
init_shaders(info, vertShaderText, fragShaderText);
init_framebuffers(info, depthPresent);
/* The binding and attributes should be the same for all 3 vertex buffers,
* so init here */
info.vi_binding.binding = 0;
info.vi_binding.inputRate = VK_VERTEX_INPUT_RATE_VERTEX;
info.vi_binding.stride = sizeof(triData[0]);
info.vi_attribs[0].binding = 0;
info.vi_attribs[0].location = 0;
info.vi_attribs[0].format = VK_FORMAT_R32G32B32A32_SFLOAT;
info.vi_attribs[0].offset = 0;
info.vi_attribs[1].binding = 0;
info.vi_attribs[1].location = 1;
info.vi_attribs[1].format = VK_FORMAT_R32G32B32A32_SFLOAT;
info.vi_attribs[1].offset = 16;
init_pipeline_cache(info);
init_pipeline(info, depthPresent);
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;
/* We need to do the clear here instead of as a load op since all 3 threads
* share the same pipeline / renderpass */
set_image_layout(info, info.buffers[info.current_buffer].image,
VK_IMAGE_ASPECT_COLOR_BIT,
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL);
vkCmdClearColorImage(info.cmd, info.buffers[info.current_buffer].image,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, clear_color, 1,
&srRange);
set_image_layout(info, info.buffers[info.current_buffer].image,
VK_IMAGE_ASPECT_COLOR_BIT,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL);
res = vkEndCommandBuffer(info.cmd);
const VkCommandBuffer cmd_bufs[] = {info.cmd};
VkFence clearFence;
init_fence(info, clearFence);
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 = &info.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, clearFence);
assert(!res);
do {
res = vkWaitForFences(info.device, 1, &clearFence, VK_TRUE,
FENCE_TIMEOUT);
} while (res == VK_TIMEOUT);
assert(res == VK_SUCCESS);
vkDestroyFence(info.device, clearFence, NULL);
/* VULKAN_KEY_START */
/* Use the fourth slot in the command buffer array for the presentation */
/* barrier using the command buffer in info */
threadCmdBufs[3] = info.cmd;
sample_platform_thread vk_threads[3];
for (size_t i = 0; i < 3; i++) {
sample_platform_thread_create(&vk_threads[i], &per_thread_code,
(void *)i);
}
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[3], &cmd_buf_info);
assert(res == VK_SUCCESS);
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(threadCmdBufs[3], VK_PIPELINE_STAGE_ALL_COMMANDS_BIT,
VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT, 0, 0, NULL, 0,
NULL, 1, &prePresentBarrier);
res = vkEndCommandBuffer(threadCmdBufs[3]);
assert(res == VK_SUCCESS);
pipe_stage_flags = VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
submit_info[0].pNext = NULL;
submit_info[0].sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
submit_info[0].waitSemaphoreCount = 0;
submit_info[0].pWaitSemaphores = NULL;
submit_info[0].pWaitDstStageMask = &pipe_stage_flags;
submit_info[0].commandBufferCount =
4; /* 3 from threads + prePresentBarrier */
submit_info[0].pCommandBuffers = threadCmdBufs;
submit_info[0].signalSemaphoreCount = 0;
submit_info[0].pSignalSemaphores = NULL;
/* Wait for all of the threads to finish */
for (int i = 0; i < 3; i++) {
sample_platform_thread_join(vk_threads[i], NULL);
}
VkFenceCreateInfo fenceInfo;
VkFence drawFence;
fenceInfo.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO;
fenceInfo.pNext = NULL;
fenceInfo.flags = 0;
vkCreateFence(info.device, &fenceInfo, NULL, &drawFence);
/* Queue the command buffer for execution */
res = vkQueueSubmit(info.queue, 1, submit_info, drawFence);
assert(!res);
/* 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);
execute_present_image(info);
wait_seconds(1);
/* VULKAN_KEY_END */
if (info.save_images)
write_ppm(info, "multithreadcmdbuf");
vkDestroyBuffer(info.device, vertex_buffer[0].buf, NULL);
vkDestroyBuffer(info.device, vertex_buffer[1].buf, NULL);
vkDestroyBuffer(info.device, vertex_buffer[2].buf, NULL);
vkFreeMemory(info.device, vertex_buffer[0].mem, NULL);
vkFreeMemory(info.device, vertex_buffer[1].mem, NULL);
vkFreeMemory(info.device, vertex_buffer[2].mem, NULL);
for (int i = 0; i < 3; i++) {
vkFreeCommandBuffers(info.device, threadCmdPools[i], 1,
&threadCmdBufs[i]);
vkDestroyCommandPool(info.device, threadCmdPools[i], NULL);
}
vkDestroySemaphore(info.device, info.presentCompleteSemaphore, NULL);
vkDestroyFence(info.device, drawFence, NULL);
destroy_pipeline(info);
destroy_pipeline_cache(info);
destroy_framebuffers(info);
destroy_shaders(info);
destroy_renderpass(info);
vkDestroyPipelineLayout(info.device, info.pipeline_layout, NULL);
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);
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, "spirv_specialization");
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;
}
//==============================================================================
// 描画
//==============================================================================
void Render()
{
VkResult result;
VkCommandBuffer command = g_commandBuffers[g_currentBufferIndex];
//==================================================
// コマンド記録開始
//==================================================
VkCommandBufferInheritanceInfo commandBufferInheritanceInfo = {};
commandBufferInheritanceInfo.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_INHERITANCE_INFO;
commandBufferInheritanceInfo.pNext = nullptr;
commandBufferInheritanceInfo.renderPass = nullptr;
commandBufferInheritanceInfo.subpass = 0;
commandBufferInheritanceInfo.framebuffer = g_frameBuffers[g_currentBufferIndex];
commandBufferInheritanceInfo.occlusionQueryEnable = VK_FALSE;
commandBufferInheritanceInfo.queryFlags = 0;
commandBufferInheritanceInfo.pipelineStatistics = 0;
VkCommandBufferBeginInfo cmdBeginInfo = {};
cmdBeginInfo.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
cmdBeginInfo.pNext = nullptr;
cmdBeginInfo.flags = 0;
cmdBeginInfo.pInheritanceInfo = &commandBufferInheritanceInfo;
vkBeginCommandBuffer(command, &cmdBeginInfo);
//==================================================
// カラーバッファをクリア
//==================================================
static float count = 0;
count += 0.0001f;
count = fmodf(count, 1.0f);
VkClearColorValue clearColor;
clearColor.float32[0] = 0.0f; // R
clearColor.float32[1] = count; // G
clearColor.float32[2] = 1.0f; // B
clearColor.float32[3] = 1.0f;
VkImageSubresourceRange imageSubresourceRange;
imageSubresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
imageSubresourceRange.baseMipLevel = 0;
imageSubresourceRange.levelCount = 1;
imageSubresourceRange.baseArrayLayer = 0;
imageSubresourceRange.layerCount = 1;
vkCmdClearColorImage(
command,
g_backBuffersTextures[g_currentBufferIndex].image,
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
&clearColor,
1,
&imageSubresourceRange);
//==================================================
// 深度バッファをクリア
//==================================================
VkClearDepthStencilValue clearDepthStencil;
clearDepthStencil.depth = 1.0f;
clearDepthStencil.stencil = 0;
imageSubresourceRange.aspectMask = VK_IMAGE_ASPECT_DEPTH_BIT;
imageSubresourceRange.baseMipLevel = 0;
imageSubresourceRange.levelCount = 1;
imageSubresourceRange.baseArrayLayer = 0;
imageSubresourceRange.layerCount = 1;
vkCmdClearDepthStencilImage(
command,
g_depthBufferTexture.image,
VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL,
&clearDepthStencil,
1,
&imageSubresourceRange);
//==================================================
// リソースバリアの設定
//==================================================
VkImageMemoryBarrier imageMemoryBarrier;
imageMemoryBarrier.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
imageMemoryBarrier.pNext = nullptr;
imageMemoryBarrier.srcAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
imageMemoryBarrier.dstAccessMask = VK_ACCESS_MEMORY_READ_BIT;
imageMemoryBarrier.oldLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
imageMemoryBarrier.newLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
imageMemoryBarrier.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
imageMemoryBarrier.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
imageMemoryBarrier.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
imageMemoryBarrier.subresourceRange.baseMipLevel = 0;
imageMemoryBarrier.subresourceRange.levelCount = 1;
imageMemoryBarrier.subresourceRange.baseArrayLayer = 0;
imageMemoryBarrier.subresourceRange.layerCount = 1;
imageMemoryBarrier.image = g_backBuffersTextures[g_currentBufferIndex].image;
vkCmdPipelineBarrier(
command,
VK_PIPELINE_STAGE_ALL_COMMANDS_BIT,
VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT,
0,
0,
nullptr,
0,
nullptr,
1,
&imageMemoryBarrier);
//==================================================
// コマンドの記録を終了
//==================================================
vkEndCommandBuffer(command);
//==================================================
// コマンドを実行し，表示する
//==================================================
VkPipelineStageFlags pipeStageFlags = VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
VkSubmitInfo submitInfo = {};
submitInfo.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
submitInfo.pNext = nullptr;
submitInfo.waitSemaphoreCount = 0;
submitInfo.pWaitSemaphores = nullptr;
submitInfo.pWaitDstStageMask = &pipeStageFlags;
submitInfo.commandBufferCount = 1;
submitInfo.pCommandBuffers = &command;
submitInfo.signalSemaphoreCount = 0;
submitInfo.pSignalSemaphores = nullptr;
// コマンドを実行
result = vkQueueSubmit(g_VulkanQueue, 1, &submitInfo, g_VulkanFence);
checkVulkanError(result, TEXT("グラフィックスキューへのサブミット失敗"));
// 完了を待機
result = vkWaitForFences(g_VulkanDevice, 1, &g_VulkanFence, VK_TRUE, TIMEOUT_NANO_SEC);
// 成功したら表示
if(result == VK_SUCCESS)
{
VkPresentInfoKHR present = {};
present.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR;
present.pNext = nullptr;
present.swapchainCount = 1;
present.pSwapchains = &g_VulkanSwapChain;
present.pImageIndices = &g_currentBufferIndex;
present.pWaitSemaphores = nullptr;
present.waitSemaphoreCount = 0;
present.pResults = nullptr;
result = vkQueuePresentKHR(g_VulkanQueue, &present);
checkVulkanError(result, TEXT("プレゼント失敗"));
}
else if(result == VK_TIMEOUT)
{
checkVulkanError(VK_TIMEOUT, TEXT("タイムアウトしました"));
}
// フェンスをリセット
result = vkResetFences(g_VulkanDevice, 1, &g_VulkanFence);
checkVulkanError(result, TEXT("フェンスのリセット失敗"));
// 次のイメージを取得
result = vkAcquireNextImageKHR(
g_VulkanDevice,
g_VulkanSwapChain,
TIMEOUT_NANO_SEC,
g_VulkanSemahoreRenderComplete,
nullptr,
&g_currentBufferIndex);
checkVulkanError(result, TEXT("次の有効なイメージインデックスの獲得に失敗"));
}
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.
// clang-format off
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);
// clang-format on
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 | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT,
&alloc_info.memoryTypeIndex);
assert(pass && "No mappable, coherent memory");
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 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);
/* 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);
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_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);
/* VULKAN_KEY_END */
if (info.save_images) write_ppm(info, "dynamicuniform");
vkDestroySemaphore(info.device, imageAcquiredSemaphore, 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 main(void) {
VkInstance instance;
{
const char debug_ext[] = "VK_EXT_debug_report";
const char* extensions[] = {debug_ext,};
const char validation_layer[] = "VK_LAYER_LUNARG_standard_validation";
const char* layers[] = {validation_layer,};
VkInstanceCreateInfo create_info = {
.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO,
.pNext = NULL,
.flags = 0,
.pApplicationInfo = NULL,
.enabledLayerCount = NELEMS(layers),
.ppEnabledLayerNames = layers,
.enabledExtensionCount = NELEMS(extensions),
.ppEnabledExtensionNames = extensions,
};
assert(vkCreateInstance(&create_info, NULL, &instance) == VK_SUCCESS);
}
VkDebugReportCallbackEXT debug_callback;
{
VkDebugReportCallbackCreateInfoEXT create_info = {
.sType = VK_STRUCTURE_TYPE_DEBUG_REPORT_CREATE_INFO_EXT,
.pNext = NULL,
.flags = (VK_DEBUG_REPORT_ERROR_BIT_EXT | VK_DEBUG_REPORT_WARNING_BIT_EXT |
VK_DEBUG_REPORT_PERFORMANCE_WARNING_BIT_EXT),
.pfnCallback = &debugReportCallback,
.pUserData = NULL,
};
PFN_vkCreateDebugReportCallbackEXT createDebugReportCallback =
(PFN_vkCreateDebugReportCallbackEXT) vkGetInstanceProcAddr(instance, "vkCreateDebugReportCallbackEXT");
assert(createDebugReportCallback);
assert(createDebugReportCallback(instance, &create_info, NULL, &debug_callback) == VK_SUCCESS);
}
VkPhysicalDevice phy_device;
{
uint32_t num_devices;
assert(vkEnumeratePhysicalDevices(instance, &num_devices, NULL) == VK_SUCCESS);
assert(num_devices >= 1);
VkPhysicalDevice * phy_devices = malloc(sizeof(*phy_devices) * num_devices);
assert(vkEnumeratePhysicalDevices(instance, &num_devices, phy_devices) == VK_SUCCESS);
phy_device = phy_devices[0];
free(phy_devices);
}
VkPhysicalDeviceMemoryProperties memory_properties;
vkGetPhysicalDeviceMemoryProperties(phy_device, &memory_properties);
VkDevice device;
{
float queue_priorities[] = {1.0};
const char validation_layer[] = "VK_LAYER_LUNARG_standard_validation";
const char* layers[] = {validation_layer,};
uint32_t nqueues;
matchingQueues(phy_device, VK_QUEUE_GRAPHICS_BIT, &nqueues, NULL);
assert(nqueues > 0);
uint32_t * queue_family_idxs = malloc(sizeof(*queue_family_idxs) * nqueues);
matchingQueues(phy_device, VK_QUEUE_GRAPHICS_BIT, &nqueues, queue_family_idxs);
VkDeviceQueueCreateInfo queue_info = {
.sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO,
.pNext = NULL,
.flags = 0,
.queueFamilyIndex = queue_family_idxs[0],
.queueCount = 1,
.pQueuePriorities = queue_priorities,
};
free(queue_family_idxs);
VkPhysicalDeviceFeatures features = {
.geometryShader = VK_TRUE,
.fillModeNonSolid = VK_TRUE,
};
VkDeviceCreateInfo create_info = {
.sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO,
.pNext = NULL,
.flags = 0,
.queueCreateInfoCount = 1,
.pQueueCreateInfos = &queue_info,
.enabledLayerCount = NELEMS(layers),
.ppEnabledLayerNames = layers,
.enabledExtensionCount = 0,
.ppEnabledExtensionNames = NULL,
.pEnabledFeatures = &features,
};
assert(vkCreateDevice(phy_device, &create_info, NULL, &device) == VK_SUCCESS);
}
VkQueue queue;
vkGetDeviceQueue(device, 0, 0, &queue);
VkCommandPool cmd_pool;
{
VkCommandPoolCreateInfo create_info = {
.sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO,
.pNext = NULL,
.flags = VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT,
.queueFamilyIndex = 0,
};
assert(vkCreateCommandPool(device, &create_info, NULL, &cmd_pool) == VK_SUCCESS);
}
VkRenderPass render_pass;
{
VkAttachmentDescription attachments[] = {{
.flags = 0,
.format = VK_FORMAT_R8G8B8A8_UNORM,
.samples = VK_SAMPLE_COUNT_8_BIT,
.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR,
.storeOp = VK_ATTACHMENT_STORE_OP_DONT_CARE,
.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE,
.stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE,
.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED,
.finalLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
}, {
.flags = 0,
.format = VK_FORMAT_D16_UNORM,
.samples = VK_SAMPLE_COUNT_8_BIT,
.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR,
.storeOp = VK_ATTACHMENT_STORE_OP_DONT_CARE,
.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE,
.stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE,
.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED,
.finalLayout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL,
}, {
.flags = 0,
.format = VK_FORMAT_R8G8B8A8_UNORM,
.samples = VK_SAMPLE_COUNT_1_BIT,
.loadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE,
.storeOp = VK_ATTACHMENT_STORE_OP_STORE,
.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE,
.stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE,
.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED,
.finalLayout = VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
}};
VkAttachmentReference attachment_refs[NELEMS(attachments)] = {{
.attachment = 0,
.layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
}, {
.attachment = 1,
.layout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL,
}, {
.attachment = 2,
.layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
}};
VkSubpassDescription subpasses[1] = {{
.flags = 0,
.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS,
.inputAttachmentCount = 0,
.pInputAttachments = NULL,
.colorAttachmentCount = 1,
.pColorAttachments = &attachment_refs[0],
.pResolveAttachments = &attachment_refs[2],
.pDepthStencilAttachment = &attachment_refs[1],
.preserveAttachmentCount = 0,
.pPreserveAttachments = NULL,
}};
VkSubpassDependency dependencies[] = {{
.srcSubpass = 0,
.dstSubpass = VK_SUBPASS_EXTERNAL,
.srcStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT,
.dstStageMask = VK_PIPELINE_STAGE_TRANSFER_BIT,
.srcAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT,
.dstAccessMask = VK_ACCESS_TRANSFER_READ_BIT,
.dependencyFlags = 0,
}};
VkRenderPassCreateInfo create_info = {
.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO,
.pNext = NULL,
.flags = 0,
.attachmentCount = NELEMS(attachments),
.pAttachments = attachments,
.subpassCount = NELEMS(subpasses),
.pSubpasses = subpasses,
.dependencyCount = NELEMS(dependencies),
.pDependencies = dependencies,
};
assert(vkCreateRenderPass(device, &create_info, NULL, &render_pass) == VK_SUCCESS);
}
VkImage images[3];
VkDeviceMemory image_memories[NELEMS(images)];
VkImageView views[NELEMS(images)];
createFrameImage(memory_properties, device, render_size,
VK_FORMAT_R8G8B8A8_UNORM, VK_SAMPLE_COUNT_8_BIT,
VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT, VK_IMAGE_ASPECT_COLOR_BIT,
&images[0], &image_memories[0], &views[0]);
createFrameImage(memory_properties, device, render_size,
VK_FORMAT_D16_UNORM, VK_SAMPLE_COUNT_8_BIT,
VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT, VK_IMAGE_ASPECT_DEPTH_BIT,
&images[1], &image_memories[1], &views[1]);
createFrameImage(memory_properties, device, render_size,
VK_FORMAT_R8G8B8A8_UNORM, VK_SAMPLE_COUNT_1_BIT,
VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT | VK_IMAGE_USAGE_TRANSFER_SRC_BIT,
VK_IMAGE_ASPECT_COLOR_BIT,
&images[2], &image_memories[2], &views[2]);
VkBuffer verts_buffer;
VkDeviceMemory verts_memory;
createBuffer(memory_properties, device, VK_BUFFER_USAGE_VERTEX_BUFFER_BIT, sizeof(verts), verts, &verts_buffer, &verts_memory);
VkBuffer index_buffer;
VkDeviceMemory index_memory;
createBuffer(memory_properties, device, VK_BUFFER_USAGE_INDEX_BUFFER_BIT, sizeof(indices), indices, &index_buffer, &index_memory);
VkBuffer image_buffer;
VkDeviceMemory image_buffer_memory;
createBuffer(memory_properties, device, VK_BUFFER_USAGE_TRANSFER_DST_BIT, render_size.height * render_size.width * 4, NULL, &image_buffer, &image_buffer_memory);
VkFramebuffer framebuffer;
createFramebuffer(device, render_size, 3, views, render_pass, &framebuffer);
VkShaderModule shaders[5];
{
char* filenames[NELEMS(shaders)] = {"cube.vert.spv", "cube.geom.spv", "cube.frag.spv", "wireframe.geom.spv", "color.frag.spv"};
for (size_t i = 0; i < NELEMS(shaders); i++){
size_t code_size;
uint32_t * code;
assert((code_size = loadModule(filenames[i], &code)) != 0);
VkShaderModuleCreateInfo create_info = {
.sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO,
.pNext = NULL,
.flags = 0,
.codeSize = code_size,
.pCode = code,
};
assert(vkCreateShaderModule(device, &create_info, NULL, &shaders[i]) == VK_SUCCESS);
free(code);
}
}
VkPipelineLayout pipeline_layout;
{
VkPushConstantRange push_range = {
.stageFlags = VK_SHADER_STAGE_VERTEX_BIT,
.offset = 0,
.size = 4,
};
VkPipelineLayoutCreateInfo create_info = {
.sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO,
.pNext = NULL,
.flags = 0,
.setLayoutCount = 0,
.pSetLayouts = NULL,
.pushConstantRangeCount = 1,
.pPushConstantRanges = &push_range,
};
assert(vkCreatePipelineLayout(device, &create_info, NULL, &pipeline_layout) == VK_SUCCESS);
}
VkPipeline pipelines[2];
{
VkPipelineShaderStageCreateInfo stages[3] = {{
.sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO,
.pNext = NULL,
.flags = 0,
.stage = VK_SHADER_STAGE_VERTEX_BIT,
.module = shaders[0],
.pName = "main",
.pSpecializationInfo = NULL,
},{
.sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO,
.pNext = NULL,
.flags = 0,
.stage = VK_SHADER_STAGE_GEOMETRY_BIT,
.module = shaders[1],
.pName = "main",
.pSpecializationInfo = NULL,
},{
.sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO,
.pNext = NULL,
.flags = 0,
.stage = VK_SHADER_STAGE_FRAGMENT_BIT,
.module = shaders[2],
.pName = "main",
.pSpecializationInfo = NULL,
}};
VkVertexInputBindingDescription vtx_binding = {
.binding = 0,
.stride = sizeof(struct Vertex),
.inputRate = VK_VERTEX_INPUT_RATE_VERTEX,
};
VkVertexInputAttributeDescription vtx_attr = {
.location = 0,
.binding = 0,
.format = VK_FORMAT_R32G32B32_SFLOAT,
.offset = offsetof(struct Vertex, pos),
};
VkPipelineVertexInputStateCreateInfo vtx_state = {
.sType = VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO,
.pNext = NULL,
.flags = 0,
.vertexBindingDescriptionCount = 1,
.pVertexBindingDescriptions = &vtx_binding,
.vertexAttributeDescriptionCount = 1,
.pVertexAttributeDescriptions = &vtx_attr,
};
VkPipelineInputAssemblyStateCreateInfo ia_state = {
.sType = VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO,
.pNext = NULL,
.flags = 0,
.topology = VK_PRIMITIVE_TOPOLOGY_TRIANGLE_STRIP,
.primitiveRestartEnable = VK_TRUE,
};
VkViewport viewport = {
.x = 0,
.y = 0,
.width = render_size.width,
.height = render_size.height,
.minDepth = 0.0,
.maxDepth = 1.0,
};
VkRect2D scissor= {
.offset = {.x = 0, .y = 0,},
.extent = render_size,
};
VkPipelineViewportStateCreateInfo viewport_state = {
.sType = VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO,
.pNext = NULL,
.flags = 0,
.viewportCount = 1,
.pViewports = &viewport,
.scissorCount = 1,
.pScissors = &scissor,
};
VkPipelineRasterizationStateCreateInfo rasterization_state = {
.sType = VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO,
.pNext = NULL,
.flags = 0,
.depthClampEnable = VK_FALSE,
.rasterizerDiscardEnable = VK_FALSE,
.polygonMode = VK_POLYGON_MODE_FILL,
.cullMode = VK_CULL_MODE_NONE,
.frontFace = VK_FRONT_FACE_COUNTER_CLOCKWISE,
.depthBiasEnable = VK_FALSE,
.lineWidth = 1.0,
};
VkPipelineMultisampleStateCreateInfo multisample_state = {
.sType = VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO,
.pNext = NULL,
.flags = 0,
.rasterizationSamples = VK_SAMPLE_COUNT_8_BIT,
.sampleShadingEnable = VK_FALSE,
.minSampleShading = 0.0,
.pSampleMask = NULL,
.alphaToCoverageEnable = VK_FALSE,
.alphaToOneEnable = VK_FALSE,
};
VkPipelineDepthStencilStateCreateInfo depth_stencil_state = {
.sType = VK_STRUCTURE_TYPE_PIPELINE_DEPTH_STENCIL_STATE_CREATE_INFO,
.pNext = NULL,
.flags = 0,
.depthTestEnable = VK_TRUE,
.depthWriteEnable = VK_TRUE,
.depthCompareOp = VK_COMPARE_OP_LESS_OR_EQUAL,
.depthBoundsTestEnable = VK_FALSE,
.stencilTestEnable = VK_FALSE,
.front = {},
.back = {},
.minDepthBounds = 0.0,
.maxDepthBounds = 1.0,
};
VkPipelineColorBlendAttachmentState color_blend_attachment = {
.blendEnable = VK_FALSE,
.colorWriteMask = ( VK_COLOR_COMPONENT_R_BIT | VK_COLOR_COMPONENT_G_BIT
| VK_COLOR_COMPONENT_B_BIT | VK_COLOR_COMPONENT_A_BIT),
};
VkPipelineColorBlendStateCreateInfo color_blend_state = {
.sType = VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO,
.pNext = NULL,
.flags = 0,
.logicOpEnable = VK_FALSE, //.logicOp = 0,
.attachmentCount = 1,
.pAttachments = &color_blend_attachment,
.blendConstants = {},
};
VkGraphicsPipelineCreateInfo create_info = {
.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO,
.pNext = NULL,
.flags = 0,
.stageCount = NELEMS(stages),
.pStages = stages,
.pVertexInputState = &vtx_state,
.pInputAssemblyState = &ia_state,
.pTessellationState = NULL,
.pViewportState = &viewport_state,
.pRasterizationState = &rasterization_state,
.pMultisampleState = &multisample_state,
.pDepthStencilState = &depth_stencil_state,
.pColorBlendState = &color_blend_state,
.pDynamicState = NULL,
.layout = pipeline_layout,
.renderPass = render_pass,
.subpass = 0,
.basePipelineHandle = VK_NULL_HANDLE,
.basePipelineIndex = 0,
};
assert(vkCreateGraphicsPipelines(device, VK_NULL_HANDLE, 1, &create_info, NULL, &pipelines[0]) == VK_SUCCESS);
stages[1].module = shaders[3];
stages[2].module = shaders[4];
rasterization_state.polygonMode = VK_POLYGON_MODE_LINE;
assert(vkCreateGraphicsPipelines(device, VK_NULL_HANDLE, 1, &create_info, NULL, &pipelines[1]) == VK_SUCCESS);
}
VkCommandBuffer draw_buffers[2];
{
VkCommandBufferAllocateInfo allocate_info = {
.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO,
.pNext = NULL,
.commandPool = cmd_pool,
.level = VK_COMMAND_BUFFER_LEVEL_PRIMARY,
.commandBufferCount = NELEMS(draw_buffers),
};
assert(vkAllocateCommandBuffers(device, &allocate_info, draw_buffers) == VK_SUCCESS);
}
{
VkCommandBufferBeginInfo begin_info = {
.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO,
.pNext = NULL,
.flags = 0,
.pInheritanceInfo = NULL,
};
VkClearValue clear_values[] = {{
.color.float32 = {0.0, 0.0, 0.0, 1.0},
}, {
.depthStencil = {.depth = 1.0},
}};
VkRenderPassBeginInfo renderpass_begin_info = {
.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO,
.pNext = NULL,
.renderPass = render_pass,
.framebuffer = framebuffer,
.renderArea = {
.offset = {.x = 0, .y = 0},
.extent = render_size,
},
.clearValueCount = NELEMS(clear_values),
.pClearValues = clear_values,
};
for (size_t i = 0; i < NELEMS(draw_buffers); i++){
assert(vkBeginCommandBuffer(draw_buffers[i], &begin_info) == VK_SUCCESS);
uint32_t persp = i == 0;
vkCmdPushConstants(draw_buffers[i], pipeline_layout, VK_SHADER_STAGE_VERTEX_BIT, 0, sizeof(persp), &persp);
vkCmdBeginRenderPass(draw_buffers[i], &renderpass_begin_info, VK_SUBPASS_CONTENTS_INLINE);
VkDeviceSize offset = 0;
vkCmdBindVertexBuffers(draw_buffers[i], 0, 1, &verts_buffer, &offset);
vkCmdBindIndexBuffer(draw_buffers[i], index_buffer, 0, VK_INDEX_TYPE_UINT32);
for (size_t j = 0; j < NELEMS(pipelines); j++) {
vkCmdBindPipeline(draw_buffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelines[j]);
vkCmdDrawIndexed(draw_buffers[i], 20, 27, 0, 0, 0);
}
vkCmdEndRenderPass(draw_buffers[i]);
}
VkBufferImageCopy copy = {
.bufferOffset = 0,
.bufferRowLength = 0, // Tightly packed
.bufferImageHeight = 0, // Tightly packed
.imageSubresource = {VK_IMAGE_ASPECT_COLOR_BIT, 0, 0, 1},
.imageOffset = {0, 0, 0},
.imageExtent = {.width = render_size.width,
.height = render_size.height,
.depth = 1},
};
VkBufferMemoryBarrier transfer_barrier = {
.sType = VK_STRUCTURE_TYPE_BUFFER_MEMORY_BARRIER,
.pNext = 0,
.srcAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT,
.dstAccessMask = VK_ACCESS_HOST_READ_BIT,
.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
.buffer = image_buffer,
.offset = 0,
.size = VK_WHOLE_SIZE,
};
for (size_t i = 0; i < NELEMS(draw_buffers); i++){
vkCmdCopyImageToBuffer(draw_buffers[i], images[2], VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL, image_buffer, 1, ©);
vkCmdPipelineBarrier(draw_buffers[i], VK_PIPELINE_STAGE_TRANSFER_BIT, VK_PIPELINE_STAGE_HOST_BIT, 0, 0, NULL, 1, &transfer_barrier, 0, NULL);
assert(vkEndCommandBuffer(draw_buffers[i]) == VK_SUCCESS);
}
}
VkFence fence;
{
VkFenceCreateInfo create_info = {
.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO,
.pNext = 0,
.flags = 0,
};
assert(vkCreateFence(device, &create_info, NULL, &fence) == VK_SUCCESS);
}
{
char * filenames[] = {"cube_persp.tif", "cube_ortho.tif"};
char * image_data;
assert(vkMapMemory(device, image_buffer_memory, 0, VK_WHOLE_SIZE, 0, (void **) &image_data) == VK_SUCCESS);
VkMappedMemoryRange image_flush = {
.sType = VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE, .pNext = NULL,
.memory = image_buffer_memory,
.offset = 0,
.size = VK_WHOLE_SIZE,
};
VkSubmitInfo submit_info = {
.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO,
.pNext = NULL,
.waitSemaphoreCount = 0,
.pWaitSemaphores = NULL,
.pWaitDstStageMask = NULL,
.commandBufferCount = 1,
.pCommandBuffers = NULL,
.signalSemaphoreCount = 0,
.pSignalSemaphores = NULL,
};
for (size_t i = 0; i < NELEMS(filenames); i++){
submit_info.pCommandBuffers = &draw_buffers[i];
assert(vkResetFences(device, 1, &fence) == VK_SUCCESS);
assert(vkQueueSubmit(queue, 1, &submit_info, fence) == VK_SUCCESS);
assert(vkWaitForFences(device, 1, &fence, VK_TRUE, UINT64_MAX) == VK_SUCCESS);
assert(vkInvalidateMappedMemoryRanges(device, 1, &image_flush) == VK_SUCCESS);
assert(writeTiff(filenames[i], image_data, render_size, nchannels) == 0);
}
vkUnmapMemory(device, image_buffer_memory);
}
assert(vkQueueWaitIdle(queue) == VK_SUCCESS);
vkDestroyFence(device, fence, NULL);
vkDestroyFramebuffer(device, framebuffer, NULL);
for (size_t i = 0; i < NELEMS(images); i++){
vkDestroyImage(device, images[i], NULL);
vkDestroyImageView(device, views[i], NULL);
vkFreeMemory(device, image_memories[i], NULL);
}
vkDestroyBuffer(device, image_buffer, NULL);
vkFreeMemory(device, image_buffer_memory, NULL);
vkDestroyBuffer(device, verts_buffer, NULL);
vkFreeMemory(device, verts_memory, NULL);
vkDestroyBuffer(device, index_buffer, NULL);
vkFreeMemory(device, index_memory, NULL);
for (size_t i = 0; i < NELEMS(pipelines); i++){
vkDestroyPipeline(device, pipelines[i], NULL);
}
vkDestroyPipelineLayout(device, pipeline_layout, NULL);
for(size_t i = 0; i < NELEMS(shaders); i++)
vkDestroyShaderModule(device, shaders[i], NULL);
vkDestroyRenderPass(device, render_pass, NULL);
vkFreeCommandBuffers(device, cmd_pool, NELEMS(draw_buffers), draw_buffers);
vkDestroyCommandPool(device, cmd_pool, NULL);
vkDestroyDevice(device, NULL);
{
PFN_vkDestroyDebugReportCallbackEXT destroyDebugReportCallback =
(PFN_vkDestroyDebugReportCallbackEXT) vkGetInstanceProcAddr(instance, "vkDestroyDebugReportCallbackEXT");
assert(destroyDebugReportCallback);
destroyDebugReportCallback(instance, debug_callback, NULL);
}
vkDestroyInstance(instance, NULL);
return 0;
}
static gboolean
_render_buffer_unlocked (GstVulkanSwapper * swapper,
GstBuffer * buffer, GError ** error)
{
VkSemaphore semaphore = { 0, };
VkSemaphoreCreateInfo semaphore_info = { 0, };
VkPresentInfoKHR present;
struct cmd_data cmd_data = { 0, };
guint32 swap_idx;
VkResult err, present_err;
semaphore_info.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO;
semaphore_info.pNext = NULL;
semaphore_info.flags = 0;
if (!buffer) {
g_set_error (error, GST_VULKAN_ERROR,
VK_ERROR_INITIALIZATION_FAILED, "Invalid buffer");
goto error;
}
if (g_atomic_int_get (&swapper->to_quit)) {
g_set_error (error, GST_VULKAN_ERROR, VK_ERROR_SURFACE_LOST_KHR,
"Output window was closed");
goto error;
}
gst_buffer_replace (&swapper->current_buffer, buffer);
reacquire:
err = vkCreateSemaphore (swapper->device->device, &semaphore_info,
NULL, &semaphore);
if (gst_vulkan_error_to_g_error (err, error, "vkCreateSemaphore") < 0)
goto error;
err =
swapper->AcquireNextImageKHR (swapper->device->device,
swapper->swap_chain, -1, semaphore, VK_NULL_HANDLE, &swap_idx);
/* TODO: Deal with the VK_SUBOPTIMAL_KHR and VK_ERROR_OUT_OF_DATE_KHR */
if (err == VK_ERROR_OUT_OF_DATE_KHR) {
GST_DEBUG_OBJECT (swapper, "out of date frame acquired");
vkDestroySemaphore (swapper->device->device, semaphore, NULL);
if (!_swapchain_resize (swapper, error))
goto error;
goto reacquire;
} else if (gst_vulkan_error_to_g_error (err, error,
"vkAcquireNextImageKHR") < 0) {
goto error;
}
if (!_build_render_buffer_cmd (swapper, swap_idx, buffer, &cmd_data, error))
goto error;
{
VkSubmitInfo submit_info = { 0, };
VkPipelineStageFlags stages = VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
submit_info.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
submit_info.pNext = NULL;
submit_info.waitSemaphoreCount = 1;
submit_info.pWaitSemaphores = &semaphore;
submit_info.pWaitDstStageMask = &stages;
submit_info.commandBufferCount = 1;
submit_info.pCommandBuffers = &cmd_data.cmd;
submit_info.signalSemaphoreCount = 0;
submit_info.pSignalSemaphores = NULL;
err =
vkQueueSubmit (swapper->queue->queue, 1, &submit_info, cmd_data.fence);
if (gst_vulkan_error_to_g_error (err, error, "vkQueueSubmit") < 0) {
return FALSE;
}
}
present.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR;
present.pNext = NULL;
present.waitSemaphoreCount = 0;
present.pWaitSemaphores = NULL;
present.swapchainCount = 1;
present.pSwapchains = &swapper->swap_chain;
present.pImageIndices = &swap_idx;
present.pResults = &present_err;
err = swapper->QueuePresentKHR (swapper->queue->queue, &present);
if (err == VK_ERROR_OUT_OF_DATE_KHR) {
GST_DEBUG_OBJECT (swapper, "out of date frame submitted");
if (!_swapchain_resize (swapper, error))
goto error;
} else if (gst_vulkan_error_to_g_error (err, error, "vkQueuePresentKHR") < 0)
goto error;
err = vkWaitForFences (swapper->device->device, 1, &cmd_data.fence, TRUE, -1);
if (gst_vulkan_error_to_g_error (err, error, "vkWaitForFences") < 0)
goto error;
if (semaphore)
vkDestroySemaphore (swapper->device->device, semaphore, NULL);
if (cmd_data.cmd)
vkFreeCommandBuffers (swapper->device->device, swapper->device->cmd_pool,
1, &cmd_data.cmd);
if (cmd_data.fence)
vkDestroyFence (swapper->device->device, cmd_data.fence, NULL);
if (cmd_data.notify)
cmd_data.notify (cmd_data.data);
return TRUE;
error:
{
if (semaphore)
vkDestroySemaphore (swapper->device->device, semaphore, NULL);
if (cmd_data.cmd)
vkFreeCommandBuffers (swapper->device->device, swapper->device->cmd_pool,
1, &cmd_data.cmd);
if (cmd_data.fence)
vkDestroyFence (swapper->device->device, cmd_data.fence, NULL);
if (cmd_data.notify)
cmd_data.notify (cmd_data.data);
return FALSE;
}
}
int sample_main() {
VkResult U_ASSERT_ONLY res;
struct sample_info info = {};
char sample_title[] = "Multiple Descriptor Sets";
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 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, NULL,
&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);
execute_pre_present_barrier(info);
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);
vkDestroySemaphore(info.device, presentCompleteSemaphore, 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_window(info);
destroy_device(info);
destroy_instance(info);
return 0;
}
static gboolean
_swapper_set_image_layout (GstVulkanSwapper * swapper,
GstVulkanImageMemory * image, VkImageLayout new_image_layout,
GError ** error)
{
VkCommandBuffer cmd;
VkFence fence;
VkResult err;
if (!gst_vulkan_device_create_cmd_buffer (swapper->device, &cmd, error))
return FALSE;
if (!_new_fence (swapper->device, &fence, error))
return FALSE;
{
VkCommandBufferInheritanceInfo buf_inh = { 0, };
VkCommandBufferBeginInfo cmd_buf_info = { 0, };
buf_inh.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_INHERITANCE_INFO;
buf_inh.pNext = NULL;
buf_inh.renderPass = VK_NULL_HANDLE;
buf_inh.subpass = 0;
buf_inh.framebuffer = VK_NULL_HANDLE;
buf_inh.occlusionQueryEnable = FALSE;
buf_inh.queryFlags = 0;
buf_inh.pipelineStatistics = 0;
cmd_buf_info.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
cmd_buf_info.pNext = NULL;
cmd_buf_info.flags = VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT;
cmd_buf_info.pInheritanceInfo = &buf_inh;
err = vkBeginCommandBuffer (cmd, &cmd_buf_info);
if (gst_vulkan_error_to_g_error (err, error, "vkBeginCommandBuffer") < 0)
return FALSE;
}
if (!_swapper_set_image_layout_with_cmd (swapper, cmd, image,
new_image_layout, error))
return FALSE;
err = vkEndCommandBuffer (cmd);
if (gst_vulkan_error_to_g_error (err, error, "vkEndCommandBuffer") < 0)
return FALSE;
{
VkSubmitInfo submit_info = { 0, };
VkPipelineStageFlags stages = VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
submit_info.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
submit_info.pNext = NULL;
submit_info.waitSemaphoreCount = 0;
submit_info.pWaitSemaphores = NULL;
submit_info.pWaitDstStageMask = &stages;
submit_info.commandBufferCount = 1;
submit_info.pCommandBuffers = &cmd;
submit_info.signalSemaphoreCount = 0;
submit_info.pSignalSemaphores = NULL;
err = vkQueueSubmit (swapper->queue->queue, 1, &submit_info, fence);
if (gst_vulkan_error_to_g_error (err, error, "vkQueueSubmit") < 0)
return FALSE;
}
err = vkWaitForFences (swapper->device->device, 1, &fence, TRUE, -1);
if (gst_vulkan_error_to_g_error (err, error, "vkWaitForFences") < 0)
return FALSE;
vkFreeCommandBuffers (swapper->device->device, swapper->device->cmd_pool, 1,
&cmd);
vkDestroyFence (swapper->device->device, fence, NULL);
return TRUE;
}
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);
#elif defined(VK_USE_PLATFORM_IOS_MVK)
info.instance_extension_names.push_back(VK_MVK_IOS_SURFACE_EXTENSION_NAME);
#elif defined(VK_USE_PLATFORM_MACOS_MVK)
info.instance_extension_names.push_back(VK_MVK_MACOS_SURFACE_EXTENSION_NAME);
#elif defined(VK_USE_PLATFORM_WAYLAND_KHR)
info.instance_extension_names.push_back(VK_KHR_WAYLAND_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;
}
int main(int argc, char *argv[]) {
VkResult U_ASSERT_ONLY res;
struct sample_info info = {};
char sample_title[] = "Pipeline Derivative";
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);
/* VULKAN_KEY_START */
//
// Create two pipelines.
//
// First pipeline is the same as that generated by init_pipeline(),
// but with VK_PIPELINE_CREATE_ALLOW_DERIVATIVES_BIT set.
//
// Second pipeline has a modified fragment shader and sets the
// VK_PIPELINE_CREATE_DERIVATIVE_BIT flag.
//
bool include_depth = true;
bool include_vi = true;
VkDynamicState dynamicStateEnables[VK_DYNAMIC_STATE_RANGE_SIZE];
VkPipelineDynamicStateCreateInfo dynamicState = {};
memset(dynamicStateEnables, 0, sizeof dynamicStateEnables);
dynamicState.sType = VK_STRUCTURE_TYPE_PIPELINE_DYNAMIC_STATE_CREATE_INFO;
dynamicState.pNext = NULL;
dynamicState.pDynamicStates = dynamicStateEnables;
dynamicState.dynamicStateCount = 0;
VkPipelineVertexInputStateCreateInfo vi;
vi.sType = VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO;
vi.pNext = NULL;
vi.flags = 0;
vi.vertexBindingDescriptionCount = 1;
vi.pVertexBindingDescriptions = &info.vi_binding;
vi.vertexAttributeDescriptionCount = 2;
vi.pVertexAttributeDescriptions = info.vi_attribs;
VkPipelineInputAssemblyStateCreateInfo ia;
ia.sType = VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO;
ia.pNext = NULL;
ia.flags = 0;
ia.primitiveRestartEnable = VK_FALSE;
ia.topology = VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST;
VkPipelineRasterizationStateCreateInfo rs;
rs.sType = VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO;
rs.pNext = NULL;
rs.flags = 0;
rs.polygonMode = VK_POLYGON_MODE_FILL;
rs.cullMode = VK_CULL_MODE_BACK_BIT;
rs.frontFace = VK_FRONT_FACE_CLOCKWISE;
rs.depthClampEnable = include_depth;
rs.rasterizerDiscardEnable = VK_FALSE;
rs.depthBiasEnable = VK_FALSE;
rs.depthBiasConstantFactor = 0;
rs.depthBiasClamp = 0;
rs.depthBiasSlopeFactor = 0;
rs.lineWidth = 0;
VkPipelineColorBlendStateCreateInfo cb;
cb.sType = VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO;
cb.flags = 0;
cb.pNext = NULL;
VkPipelineColorBlendAttachmentState att_state[1];
att_state[0].colorWriteMask = 0xf;
att_state[0].blendEnable = VK_FALSE;
att_state[0].alphaBlendOp = VK_BLEND_OP_ADD;
att_state[0].colorBlendOp = VK_BLEND_OP_ADD;
att_state[0].srcColorBlendFactor = VK_BLEND_FACTOR_ZERO;
att_state[0].dstColorBlendFactor = VK_BLEND_FACTOR_ZERO;
att_state[0].srcAlphaBlendFactor = VK_BLEND_FACTOR_ZERO;
att_state[0].dstAlphaBlendFactor = VK_BLEND_FACTOR_ZERO;
cb.attachmentCount = 1;
cb.pAttachments = att_state;
cb.logicOpEnable = VK_FALSE;
cb.logicOp = VK_LOGIC_OP_NO_OP;
cb.blendConstants[0] = 1.0f;
cb.blendConstants[1] = 1.0f;
cb.blendConstants[2] = 1.0f;
cb.blendConstants[3] = 1.0f;
VkPipelineViewportStateCreateInfo vp = {};
vp.sType = VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO;
vp.pNext = NULL;
vp.flags = 0;
vp.viewportCount = NUM_VIEWPORTS;
dynamicStateEnables[dynamicState.dynamicStateCount++] =
VK_DYNAMIC_STATE_VIEWPORT;
vp.scissorCount = NUM_SCISSORS;
dynamicStateEnables[dynamicState.dynamicStateCount++] =
VK_DYNAMIC_STATE_SCISSOR;
vp.pScissors = NULL;
vp.pViewports = NULL;
VkPipelineDepthStencilStateCreateInfo ds;
ds.sType = VK_STRUCTURE_TYPE_PIPELINE_DEPTH_STENCIL_STATE_CREATE_INFO;
ds.pNext = NULL;
ds.flags = 0;
ds.depthTestEnable = include_depth;
ds.depthWriteEnable = include_depth;
ds.depthCompareOp = VK_COMPARE_OP_LESS_OR_EQUAL;
ds.depthBoundsTestEnable = VK_FALSE;
ds.stencilTestEnable = VK_FALSE;
ds.back.failOp = VK_STENCIL_OP_KEEP;
ds.back.passOp = VK_STENCIL_OP_KEEP;
ds.back.compareOp = VK_COMPARE_OP_ALWAYS;
ds.back.compareMask = 0;
ds.back.reference = 0;
ds.back.depthFailOp = VK_STENCIL_OP_KEEP;
ds.back.writeMask = 0;
ds.minDepthBounds = 0;
ds.maxDepthBounds = 0;
ds.stencilTestEnable = VK_FALSE;
ds.front = ds.back;
VkPipelineMultisampleStateCreateInfo ms;
ms.sType = VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO;
ms.pNext = NULL;
ms.flags = 0;
ms.pSampleMask = NULL;
ms.rasterizationSamples = NUM_SAMPLES;
ms.sampleShadingEnable = VK_FALSE;
ms.alphaToCoverageEnable = VK_FALSE;
ms.alphaToOneEnable = VK_FALSE;
ms.minSampleShading = 0.0;
VkGraphicsPipelineCreateInfo pipeline;
pipeline.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO;
pipeline.pNext = NULL;
pipeline.layout = info.pipeline_layout;
pipeline.basePipelineHandle = VK_NULL_HANDLE;
pipeline.basePipelineIndex = 0;
// Specify that we will be creating a derivative of this pipeline.
pipeline.flags = VK_PIPELINE_CREATE_ALLOW_DERIVATIVES_BIT;
pipeline.pVertexInputState = include_vi ? &vi : NULL;
pipeline.pInputAssemblyState = &ia;
pipeline.pRasterizationState = &rs;
pipeline.pColorBlendState = &cb;
pipeline.pTessellationState = NULL;
pipeline.pMultisampleState = &ms;
pipeline.pDynamicState = &dynamicState;
pipeline.pViewportState = &vp;
pipeline.pDepthStencilState = &ds;
pipeline.pStages = info.shaderStages;
pipeline.stageCount = 2;
pipeline.renderPass = info.render_pass;
pipeline.subpass = 0;
// Create the base pipeline without storing it in the info struct
// NOTE: If desired, we can add timing info around pipeline creation to
// demonstrate any perf benefits to derivation.
VkPipeline basePipeline;
res = vkCreateGraphicsPipelines(info.device, info.pipelineCache, 1,
&pipeline, NULL, &basePipeline);
assert(res == VK_SUCCESS);
// Now create the derivative pipeline, using a different fragment shader
// This shader will shade the cube faces with interpolated colors
// NOTE: If this step is too heavyweight to show any benefit of derivation,
// then
// create a pipeline that differs in some other, simpler way.
const char *fragShaderText2 = "#version 450\n"
"layout (location = 0) in vec2 texcoord;\n"
"layout (location = 0) out vec4 outColor;\n"
"void main() {\n"
" outColor = vec4(texcoord.x, texcoord.y, "
"1.0 - texcoord.x - texcoord.y, 1.0f);\n"
"}\n";
// Convert GLSL to SPIR-V
init_glslang();
std::vector<unsigned int> fragSpv;
bool U_ASSERT_ONLY retVal =
GLSLtoSPV(VK_SHADER_STAGE_FRAGMENT_BIT, fragShaderText2, fragSpv);
assert(retVal);
finalize_glslang();
// Replace the module entry of info.shaderStages to change the fragment
// shader
vkDestroyShaderModule(info.device, info.shaderStages[1].module, NULL);
VkShaderModuleCreateInfo moduleCreateInfo = {};
moduleCreateInfo.sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO;
moduleCreateInfo.pNext = NULL;
moduleCreateInfo.flags = 0;
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);
// Modify pipeline info to reflect derivation
pipeline.flags = VK_PIPELINE_CREATE_DERIVATIVE_BIT;
pipeline.basePipelineHandle = basePipeline;
pipeline.basePipelineIndex = -1;
// And create the derived pipeline, assigning to info.pipeline for use by
// later helpers
res = vkCreateGraphicsPipelines(info.device, info.pipelineCache, 1,
&pipeline, NULL, &info.pipeline);
assert(res == VK_SUCCESS);
/* VULKAN_KEY_END */
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, "pipeline_derivative");
vkDestroyFence(info.device, drawFence, NULL);
vkDestroySemaphore(info.device, info.presentCompleteSemaphore, NULL);
vkDestroyPipeline(info.device, basePipeline, 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 VulkanWindow::BeginRender() const
{
/** @todo I no longer think writing to the matrix buffer each time is optimal,
* but I do not want to introduce a dirty matrix flag.
* Will probably just make the set projection and transform to virtual. */
mMatrices.WriteMemory ( 0, sizeof ( float ) * 16, mProjectionMatrix.GetMatrix4x4() );
mMatrices.WriteMemory ( sizeof ( float ) * 16, sizeof ( float ) * 16, mViewMatrix.GetMatrix4x4() );
if ( VkResult result = vkAcquireNextImageKHR (
mVulkanRenderer.GetDevice(),
mVkSwapchainKHR,
UINT64_MAX, VK_NULL_HANDLE,
mVulkanRenderer.GetFence(),
const_cast<uint32_t*> ( &mActiveImageIndex ) ) )
{
std::cout << GetVulkanResultString ( result ) << " " << __func__ << " " << __LINE__ << " " << std::endl;
}
if ( VkResult result = vkWaitForFences ( mVulkanRenderer.GetDevice(), 1,
&mVulkanRenderer.GetFence(),
VK_TRUE, UINT64_MAX ) )
{
std::cout << GetVulkanResultString ( result ) << " " << __func__ << " " << __LINE__ << " " << std::endl;
}
if ( VkResult result = vkResetFences ( mVulkanRenderer.GetDevice(), 1,
&mVulkanRenderer.GetFence() ) )
{
std::cout << GetVulkanResultString ( result ) << " " << __func__ << " " << __LINE__ << " " << std::endl;
}
if ( VkResult result = vkQueueWaitIdle ( mVulkanRenderer.GetQueue() ) )
{
std::cout << GetVulkanResultString ( result ) << " " << __func__ << " " << __LINE__ << " " << std::endl;
}
VkCommandBufferBeginInfo command_buffer_begin_info{};
command_buffer_begin_info.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
command_buffer_begin_info.flags = VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT;
if ( VkResult result = vkBeginCommandBuffer ( mVulkanRenderer.GetCommandBuffer(), &command_buffer_begin_info ) )
{
std::cout << GetVulkanResultString ( result ) << " Error Code: " << result << " at " << __func__ << " line " << __LINE__ << " " << std::endl;
}
vkCmdSetViewport ( mVulkanRenderer.GetCommandBuffer(), 0, 1, &mVkViewport );
vkCmdSetScissor ( mVulkanRenderer.GetCommandBuffer(), 0, 1, &mVkScissor );
/* [0] is color, [1] is depth/stencil.*/
/**@todo Allow for changing the clear values.*/
std::array<VkClearValue, 2> clear_values{ { { {{0}} }, { {{0}} } } };
clear_values[0].color.float32[0] = 0.5f;
clear_values[0].color.float32[1] = 0.5f;
clear_values[0].color.float32[2] = 0.5f;
clear_values[0].color.float32[3] = 0.0f;
clear_values[1].depthStencil.depth = 1.0f;
clear_values[1].depthStencil.stencil = 0;
VkRenderPassBeginInfo render_pass_begin_info{};
render_pass_begin_info.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
render_pass_begin_info.renderPass = mVulkanRenderer.GetRenderPass();
render_pass_begin_info.framebuffer = mVkFramebuffers[mActiveImageIndex];
render_pass_begin_info.renderArea = mVkScissor;
render_pass_begin_info.clearValueCount = static_cast<uint32_t> ( clear_values.size() );
render_pass_begin_info.pClearValues = clear_values.data();
vkCmdBeginRenderPass ( mVulkanRenderer.GetCommandBuffer(), &render_pass_begin_info, VK_SUBPASS_CONTENTS_INLINE );
}
int 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);
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 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, NULL,
&info.current_buffer);
// TODO: Deal with the VK_SUBOPTIMAL_KHR and VK_ERROR_OUT_OF_DATE_KHR
// return codes
assert(res == VK_SUCCESS);
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 = 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);
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);
if (info.save_images)
write_ppm(info, "secondarycmd");
vkFreeCommandBuffers(info.device, info.cmd_pool, 4, secondary_cmds);
/* VULKAN_KEY_END */
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;
}
