Method createGraphicsPipeline

hello-vulkan/app/src/main/cpp/hellovk.h:1103–1230

* Creates a graphics pipeline loading a simple vertex and fragment shader, both * with 'main' set as entrypoint A list of standard parameters are provided: * - The vertex input coming from the application is set to empty - we are * hardcoding the triangle in the vertex shader. * - The input assembly is configured to draw triangle lists * - We intend to draw onto the whole screen, so the sc

 * in order to render a rotated scene when the device has been rotated.
 */
void HelloVK::createGraphicsPipeline() {
  auto vertShaderCode =
      LoadBinaryFileToVector("shaders/shader.vert.spv", assetManager);
  auto fragShaderCode =
      LoadBinaryFileToVector("shaders/shader.frag.spv", assetManager);

  VkShaderModule vertShaderModule = createShaderModule(vertShaderCode);
  VkShaderModule fragShaderModule = createShaderModule(fragShaderCode);

  VkPipelineShaderStageCreateInfo vertShaderStageInfo{};
  vertShaderStageInfo.sType =
      VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO;
  vertShaderStageInfo.stage = VK_SHADER_STAGE_VERTEX_BIT;
  vertShaderStageInfo.module = vertShaderModule;
  vertShaderStageInfo.pName = "main";

  VkPipelineShaderStageCreateInfo fragShaderStageInfo{};
  fragShaderStageInfo.sType =
      VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO;
  fragShaderStageInfo.stage = VK_SHADER_STAGE_FRAGMENT_BIT;
  fragShaderStageInfo.module = fragShaderModule;
  fragShaderStageInfo.pName = "main";

  VkPipelineShaderStageCreateInfo shaderStages[] = {vertShaderStageInfo,
                                                    fragShaderStageInfo};

  VkPipelineVertexInputStateCreateInfo vertexInputInfo{};
  vertexInputInfo.sType =
      VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO;
  vertexInputInfo.vertexBindingDescriptionCount = 0;
  vertexInputInfo.pVertexBindingDescriptions = nullptr;
  vertexInputInfo.vertexAttributeDescriptionCount = 0;
  vertexInputInfo.pVertexAttributeDescriptions = nullptr;

  VkPipelineInputAssemblyStateCreateInfo inputAssembly{};
  inputAssembly.sType =
      VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO;
  inputAssembly.topology = VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST;
  inputAssembly.primitiveRestartEnable = VK_FALSE;

  VkPipelineViewportStateCreateInfo viewportState{};
  viewportState.sType = VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO;
  viewportState.viewportCount = 1;
  viewportState.scissorCount = 1;

  VkPipelineRasterizationStateCreateInfo rasterizer{};
  rasterizer.sType = VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO;
  rasterizer.depthClampEnable = VK_FALSE;
  rasterizer.rasterizerDiscardEnable = VK_FALSE;
  rasterizer.polygonMode = VK_POLYGON_MODE_FILL;
  rasterizer.lineWidth = 1.0f;

  rasterizer.cullMode = VK_CULL_MODE_BACK_BIT;
  rasterizer.frontFace = VK_FRONT_FACE_CLOCKWISE;

  rasterizer.depthBiasEnable = VK_FALSE;
  rasterizer.depthBiasConstantFactor = 0.0f;
  rasterizer.depthBiasClamp = 0.0f;