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/******************************************************************************
* The MIT License (MIT)
*
* Copyright (c) 2018 Baldur Karlsson
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
******************************************************************************/
#include "vk_test.h"
struct VK_Overlay_Test : VulkanGraphicsTest
{
static constexpr const char *Description =
"Makes a couple of draws that show off all the overlays in some way";
std::string common = R"EOSHADER(
#version 420 core
struct v2f
{
vec4 pos;
vec4 col;
vec4 uv;
};
)EOSHADER";
const std::string vertex = R"EOSHADER(
layout(location = 0) in vec3 Position;
layout(location = 1) in vec4 Color;
layout(location = 2) in vec2 UV;
layout(location = 0) out v2f vertOut;
void main()
{
vertOut.pos = vec4(Position.xyz, 1);
gl_Position = vertOut.pos;
vertOut.col = Color;
vertOut.uv = vec4(UV.xy, 0, 1);
}
)EOSHADER";
const std::string pixel = R"EOSHADER(
layout(location = 0) in v2f vertIn;
layout(location = 0, index = 0) out vec4 Color;
void main()
{
Color = vertIn.col;
}
)EOSHADER";
int main(int argc, char **argv)
{
// initialise, create window, create context, etc
if(!Init(argc, argv))
return 3;
VkPipelineLayout layout = createPipelineLayout(vkh::PipelineLayoutCreateInfo());
// note that the Y position values are inverted for vulkan 1.0 viewport convention, relative to
// all other APIs
const DefaultA2V VBData[] = {
// this triangle occludes in depth
{Vec3f(-0.5f, 0.5f, 0.0f), Vec4f(0.0f, 0.0f, 1.0f, 1.0f), Vec2f(0.0f, 0.0f)},
{Vec3f(-0.5f, 0.0f, 0.0f), Vec4f(0.0f, 0.0f, 1.0f, 1.0f), Vec2f(0.0f, 1.0f)},
{Vec3f(0.0f, 0.0f, 0.0f), Vec4f(0.0f, 0.0f, 1.0f, 1.0f), Vec2f(1.0f, 0.0f)},
// this triangle occludes in stencil
{Vec3f(-0.5f, 0.0f, 0.9f), Vec4f(1.0f, 0.0f, 0.0f, 1.0f), Vec2f(0.0f, 1.0f)},
{Vec3f(-0.5f, -0.5f, 0.9f), Vec4f(1.0f, 0.0f, 0.0f, 1.0f), Vec2f(0.0f, 0.0f)},
{Vec3f(0.0f, 0.0f, 0.9f), Vec4f(1.0f, 0.0f, 0.0f, 1.0f), Vec2f(1.0f, 0.0f)},
// this triangle is just in the background to contribute to overdraw
{Vec3f(-0.9f, 0.9f, 0.95f), Vec4f(0.1f, 0.1f, 0.1f, 1.0f), Vec2f(0.0f, 0.0f)},
{Vec3f(0.0f, -0.9f, 0.95f), Vec4f(0.1f, 0.1f, 0.1f, 1.0f), Vec2f(0.0f, 1.0f)},
{Vec3f(0.9f, 0.9f, 0.95f), Vec4f(0.1f, 0.1f, 0.1f, 1.0f), Vec2f(1.0f, 0.0f)},
// the draw has a few triangles, main one that is occluded for depth, another that is
// adding to overdraw complexity, one that is backface culled, then a few more of various
// sizes for triangle size overlay
{Vec3f(-0.3f, 0.5f, 0.5f), Vec4f(0.0f, 0.0f, 0.0f, 1.0f), Vec2f(0.0f, 0.0f)},
{Vec3f(-0.3f, -0.5f, 0.5f), Vec4f(0.0f, 0.0f, 0.0f, 1.0f), Vec2f(0.0f, 1.0f)},
{Vec3f(0.5f, 0.0f, 0.5f), Vec4f(1.0f, 1.0f, 1.0f, 1.0f), Vec2f(1.0f, 0.0f)},
{Vec3f(-0.2f, 0.2f, 0.6f), Vec4f(0.0f, 0.0f, 0.0f, 1.0f), Vec2f(0.0f, 0.0f)},
{Vec3f(0.2f, 0.0f, 0.6f), Vec4f(0.0f, 0.0f, 0.0f, 1.0f), Vec2f(0.0f, 1.0f)},
{Vec3f(0.2f, 0.4f, 0.6f), Vec4f(0.0f, 0.0f, 0.0f, 1.0f), Vec2f(1.0f, 0.0f)},
// backface culled
{Vec3f(0.1f, 0.0f, 0.5f), Vec4f(0.0f, 0.0f, 0.0f, 1.0f), Vec2f(0.0f, 0.0f)},
{Vec3f(0.5f, 0.2f, 0.5f), Vec4f(0.0f, 0.0f, 0.0f, 1.0f), Vec2f(0.0f, 1.0f)},
{Vec3f(0.5f, -0.2f, 0.5f), Vec4f(0.0f, 0.0f, 0.0f, 1.0f), Vec2f(1.0f, 0.0f)},
// small triangles
// size=0.005
{Vec3f(0.0f, -0.4f, 0.5f), Vec4f(0.0f, 1.0f, 0.0f, 1.0f), Vec2f(0.0f, 0.0f)},
{Vec3f(0.0f, -0.41f, 0.5f), Vec4f(0.0f, 1.0f, 0.0f, 1.0f), Vec2f(0.0f, 1.0f)},
{Vec3f(0.01f, -0.4f, 0.5f), Vec4f(0.0f, 1.0f, 0.0f, 1.0f), Vec2f(1.0f, 0.0f)},
// size=0.015
{Vec3f(0.0f, -0.5f, 0.5f), Vec4f(0.0f, 1.0f, 1.0f, 1.0f), Vec2f(0.0f, 0.0f)},
{Vec3f(0.0f, -0.515f, 0.5f), Vec4f(0.0f, 1.0f, 1.0f, 1.0f), Vec2f(0.0f, 1.0f)},
{Vec3f(0.015f, -0.5f, 0.5f), Vec4f(0.0f, 1.0f, 1.0f, 1.0f), Vec2f(1.0f, 0.0f)},
// size=0.02
{Vec3f(0.0f, -0.6f, 0.5f), Vec4f(1.0f, 1.0f, 0.0f, 1.0f), Vec2f(0.0f, 0.0f)},
{Vec3f(0.0f, -0.62f, 0.5f), Vec4f(1.0f, 1.0f, 0.0f, 1.0f), Vec2f(0.0f, 1.0f)},
{Vec3f(0.02f, -0.6f, 0.5f), Vec4f(1.0f, 1.0f, 0.0f, 1.0f), Vec2f(1.0f, 0.0f)},
// size=0.025
{Vec3f(0.0f, -0.7f, 0.5f), Vec4f(1.0f, 0.5f, 1.0f, 1.0f), Vec2f(0.0f, 0.0f)},
{Vec3f(0.0f, -0.725f, 0.5f), Vec4f(1.0f, 0.5f, 1.0f, 1.0f), Vec2f(0.0f, 1.0f)},
{Vec3f(0.025f, -0.7f, 0.5f), Vec4f(1.0f, 0.5f, 1.0f, 1.0f), Vec2f(1.0f, 0.0f)},
};
AllocatedBuffer vb(allocator,
vkh::BufferCreateInfo(sizeof(VBData), VK_BUFFER_USAGE_VERTEX_BUFFER_BIT |
VK_BUFFER_USAGE_TRANSFER_DST_BIT),
VmaAllocationCreateInfo({0, VMA_MEMORY_USAGE_CPU_TO_GPU}));
vb.upload(VBData);
// create depth-stencil image
AllocatedImage depthimg(allocator,
vkh::ImageCreateInfo(scissor.extent.width, scissor.extent.height, 0,
VK_FORMAT_D32_SFLOAT_S8_UINT,
VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT),
VmaAllocationCreateInfo({0, VMA_MEMORY_USAGE_GPU_ONLY}));
VkImageView dsvview = createImageView(vkh::ImageViewCreateInfo(
depthimg.image, VK_IMAGE_VIEW_TYPE_2D, VK_FORMAT_D32_SFLOAT_S8_UINT, {},
vkh::ImageSubresourceRange(VK_IMAGE_ASPECT_DEPTH_BIT | VK_IMAGE_ASPECT_STENCIL_BIT)));
// create renderpass using the DS image
vkh::RenderPassCreator renderPassCreateInfo;
renderPassCreateInfo.attachments.push_back(
vkh::AttachmentDescription(swapFormat, VK_IMAGE_LAYOUT_GENERAL, VK_IMAGE_LAYOUT_GENERAL));
renderPassCreateInfo.attachments.push_back(vkh::AttachmentDescription(
VK_FORMAT_D32_SFLOAT_S8_UINT, VK_IMAGE_LAYOUT_UNDEFINED, VK_IMAGE_LAYOUT_GENERAL,
VK_ATTACHMENT_LOAD_OP_CLEAR, VK_ATTACHMENT_STORE_OP_DONT_CARE, VK_SAMPLE_COUNT_1_BIT,
VK_ATTACHMENT_LOAD_OP_CLEAR, VK_ATTACHMENT_STORE_OP_DONT_CARE));
renderPassCreateInfo.addSubpass({VkAttachmentReference({0, VK_IMAGE_LAYOUT_GENERAL})}, 1,
VK_IMAGE_LAYOUT_GENERAL);
VkRenderPass renderPass = createRenderPass(renderPassCreateInfo);
// create framebuffers using swapchain images and DS image
std::vector<VkFramebuffer> fbs;
fbs.resize(swapImageViews.size());
for(size_t i = 0; i < swapImageViews.size(); i++)
fbs[i] = createFramebuffer(
vkh::FramebufferCreateInfo(renderPass, {swapImageViews[i], dsvview}, scissor.extent));
// create PSO
vkh::GraphicsPipelineCreateInfo pipeCreateInfo;
pipeCreateInfo.layout = layout;
pipeCreateInfo.renderPass = renderPass;
pipeCreateInfo.vertexInputState.vertexBindingDescriptions = {vkh::vertexBind(0, DefaultA2V)};
pipeCreateInfo.vertexInputState.vertexAttributeDescriptions = {
vkh::vertexAttr(0, 0, DefaultA2V, pos), vkh::vertexAttr(1, 0, DefaultA2V, col),
vkh::vertexAttr(2, 0, DefaultA2V, uv),
};
pipeCreateInfo.stages = {
CompileShaderModule(common + vertex, ShaderLang::glsl, ShaderStage::vert, "main"),
CompileShaderModule(common + pixel, ShaderLang::glsl, ShaderStage::frag, "main"),
};
pipeCreateInfo.rasterizationState.cullMode = VK_CULL_MODE_BACK_BIT;
pipeCreateInfo.depthStencilState.depthTestEnable = VK_TRUE;
pipeCreateInfo.depthStencilState.depthWriteEnable = VK_TRUE;
pipeCreateInfo.depthStencilState.stencilTestEnable = VK_FALSE;
pipeCreateInfo.depthStencilState.front.compareOp = VK_COMPARE_OP_ALWAYS;
pipeCreateInfo.depthStencilState.front.passOp = VK_STENCIL_OP_REPLACE;
pipeCreateInfo.depthStencilState.front.reference = 0x55;
pipeCreateInfo.depthStencilState.front.compareMask = 0xff;
pipeCreateInfo.depthStencilState.front.writeMask = 0xff;
pipeCreateInfo.depthStencilState.back = pipeCreateInfo.depthStencilState.front;
pipeCreateInfo.depthStencilState.depthCompareOp = VK_COMPARE_OP_ALWAYS;
VkPipeline depthWritePipe = createGraphicsPipeline(pipeCreateInfo);
pipeCreateInfo.depthStencilState.depthCompareOp = VK_COMPARE_OP_LESS_OR_EQUAL;
pipeCreateInfo.depthStencilState.stencilTestEnable = VK_TRUE;
VkPipeline stencilWritePipe = createGraphicsPipeline(pipeCreateInfo);
pipeCreateInfo.depthStencilState.stencilTestEnable = VK_FALSE;
VkPipeline backgroundPipe = createGraphicsPipeline(pipeCreateInfo);
pipeCreateInfo.depthStencilState.stencilTestEnable = VK_TRUE;
pipeCreateInfo.depthStencilState.front.compareOp = VK_COMPARE_OP_GREATER;
VkPipeline pipe = createGraphicsPipeline(pipeCreateInfo);
while(Running())
{
VkCommandBuffer cmd = GetCommandBuffer();
vkBeginCommandBuffer(cmd, vkh::CommandBufferBeginInfo());
VkImage swapimg =
StartUsingBackbuffer(cmd, VK_ACCESS_TRANSFER_WRITE_BIT, VK_IMAGE_LAYOUT_GENERAL);
VkViewport v = viewport;
v.x += 10.0f;
v.y += 10.0f;
v.width -= 20.0f;
v.height -= 20.0f;
vkCmdSetViewport(cmd, 0, 1, &v);
vkCmdSetScissor(cmd, 0, 1, &scissor);
vkh::cmdBindVertexBuffers(cmd, 0, {vb.buffer}, {0});
vkCmdClearColorImage(cmd, swapimg, VK_IMAGE_LAYOUT_GENERAL,
vkh::ClearColorValue(0.4f, 0.5f, 0.6f, 1.0f), 1,
vkh::ImageSubresourceRange());
vkCmdBeginRenderPass(cmd,
vkh::RenderPassBeginInfo(renderPass, fbs[swapIndex], scissor,
{vkh::ClearValue(), vkh::ClearValue(1.0f, 0)}),
VK_SUBPASS_CONTENTS_INLINE);
// draw the setup triangles
vkCmdBindPipeline(cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, depthWritePipe);
vkCmdDraw(cmd, 3, 1, 0, 0);
vkCmdBindPipeline(cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, stencilWritePipe);
vkCmdDraw(cmd, 3, 1, 3, 0);
vkCmdBindPipeline(cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, backgroundPipe);
vkCmdDraw(cmd, 3, 1, 6, 0);
// add a marker so we can easily locate this draw
setMarker(cmd, "Test Begin");
vkCmdBindPipeline(cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, pipe);
vkCmdDraw(cmd, 21, 1, 9, 0);
vkCmdEndRenderPass(cmd);
FinishUsingBackbuffer(cmd, VK_ACCESS_TRANSFER_WRITE_BIT, VK_IMAGE_LAYOUT_GENERAL);
vkEndCommandBuffer(cmd);
Submit(0, 1, {cmd});
Present();
}
return 0;
}
};
REGISTER_TEST(VK_Overlay_Test);
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