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fuchsia / third_party / vulkan-cts / refs/heads/upstream/vulkan-cts-1.0.1 / . / external / vulkancts / modules / vulkan / clipping / vktClippingTests.cpp
blob: 11d245fd70087a137ebc28099811eaf9eb90f085 [file] [log] [blame]
/*------------------------------------------------------------------------
* Vulkan Conformance Tests
* ------------------------
*
* Copyright (c) 2016 The Khronos Group Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*//*!
* \file
* \brief Clipping tests
*//*--------------------------------------------------------------------*/
#include "vktClippingTests.hpp"
#include "vktTestCase.hpp"
#include "vktTestGroupUtil.hpp"
#include "vktTestCaseUtil.hpp"
#include "vktClippingUtil.hpp"
#include "vkRefUtil.hpp"
#include "vkTypeUtil.hpp"
#include "vkImageUtil.hpp"
#include "deUniquePtr.hpp"
#include "deStringUtil.hpp"
#include "deRandom.hpp"
namespace vkt
{
namespace clipping
{
namespace
{
using namespace vk;
using de::MovePtr;
using tcu::UVec2;
using tcu::Vec4;
using tcu::IVec2;
enum Constants
{
RENDER_SIZE = 16,
RENDER_SIZE_LARGE = 128,
NUM_RENDER_PIXELS = RENDER_SIZE * RENDER_SIZE,
NUM_PATCH_CONTROL_POINTS = 3,
MAX_NUM_SHADER_MODULES = 5,
MAX_CLIP_DISTANCES = 8,
MAX_CULL_DISTANCES = 8,
MAX_COMBINED_CLIP_AND_CULL_DISTANCES = 8,
};
struct Shader
{
VkShaderStageFlagBits stage;
const ProgramBinary* binary;
Shader (const VkShaderStageFlagBits stage_, const ProgramBinary& binary_)
: stage (stage_)
, binary (&binary_)
{
}
};
//! Sets up a graphics pipeline and enables simple draw calls to predefined attachments.
//! Clip volume uses wc = 1.0, which gives clip coord ranges: x = [-1, 1], y = [-1, 1], z = [0, 1]
//! Clip coords (-1,-1) map to viewport coords (0, 0).
class DrawContext
{
public:
DrawContext (Context& context,
const std::vector<Shader>& shaders,
const std::vector<Vec4>& vertices,
const VkPrimitiveTopology primitiveTopology,
const deUint32 renderSize = static_cast<deUint32>(RENDER_SIZE),
const bool depthClampEnable = false,
const bool blendEnable = false,
const float lineWidth = 1.0f);
void draw (void);
tcu::ConstPixelBufferAccess getColorPixels (void) const;
private:
Context& m_context;
const VkFormat m_colorFormat;
const VkImageSubresourceRange m_colorSubresourceRange;
const UVec2 m_renderSize;
const VkExtent3D m_imageExtent;
const VkPrimitiveTopology m_primitiveTopology;
const bool m_depthClampEnable;
const bool m_blendEnable;
const deUint32 m_numVertices;
const float m_lineWidth;
const deUint32 m_numPatchControlPoints;
MovePtr<Buffer> m_vertexBuffer;
MovePtr<Image> m_colorImage;
MovePtr<Buffer> m_colorAttachmentBuffer;
Move<VkImageView> m_colorImageView;
Move<VkRenderPass> m_renderPass;
Move<VkFramebuffer> m_framebuffer;
Move<VkPipelineLayout> m_pipelineLayout;
Move<VkPipeline> m_pipeline;
Move<VkCommandPool> m_cmdPool;
Move<VkCommandBuffer> m_cmdBuffer;
Move<VkShaderModule> m_shaderModules[MAX_NUM_SHADER_MODULES];
DrawContext (const DrawContext&); // "deleted"
DrawContext& operator= (const DrawContext&); // "deleted"
};
DrawContext::DrawContext (Context& context,
const std::vector<Shader>& shaders,
const std::vector<Vec4>& vertices,
const VkPrimitiveTopology primitiveTopology,
const deUint32 renderSize,
const bool depthClampEnable,
const bool blendEnable,
const float lineWidth)
: m_context (context)
, m_colorFormat (VK_FORMAT_R8G8B8A8_UNORM)
, m_colorSubresourceRange (makeImageSubresourceRange(VK_IMAGE_ASPECT_COLOR_BIT, 0u, 1u, 0u, 1u))
, m_renderSize (renderSize, renderSize)
, m_imageExtent (makeExtent3D(m_renderSize.x(), m_renderSize.y(), 1u))
, m_primitiveTopology (primitiveTopology)
, m_depthClampEnable (depthClampEnable)
, m_blendEnable (blendEnable)
, m_numVertices (static_cast<deUint32>(vertices.size()))
, m_lineWidth (lineWidth)
, m_numPatchControlPoints (NUM_PATCH_CONTROL_POINTS) // we're treating patches as triangles
{
const DeviceInterface& vk = m_context.getDeviceInterface();
const VkDevice device = m_context.getDevice();
Allocator& allocator = m_context.getDefaultAllocator();
// Command buffer
{
m_cmdPool = makeCommandPool(vk, device, m_context.getUniversalQueueFamilyIndex());
m_cmdBuffer = makeCommandBuffer(vk, device, *m_cmdPool);
}
// Color attachment image
{
const VkImageUsageFlags usage = VK_IMAGE_USAGE_TRANSFER_SRC_BIT | VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
const VkImageCreateInfo imageCreateInfo =
{
VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO, // VkStructureType sType;
DE_NULL, // const void* pNext;
(VkImageCreateFlags)0, // VkImageCreateFlags flags;
VK_IMAGE_TYPE_2D, // VkImageType imageType;
m_colorFormat, // VkFormat format;
m_imageExtent, // VkExtent3D extent;
1u, // uint32_t mipLevels;
1u, // uint32_t arrayLayers;
VK_SAMPLE_COUNT_1_BIT, // VkSampleCountFlagBits samples;
VK_IMAGE_TILING_OPTIMAL, // VkImageTiling tiling;
usage, // VkImageUsageFlags usage;
VK_SHARING_MODE_EXCLUSIVE, // VkSharingMode sharingMode;
VK_QUEUE_FAMILY_IGNORED, // uint32_t queueFamilyIndexCount;
DE_NULL, // const uint32_t* pQueueFamilyIndices;
VK_IMAGE_LAYOUT_UNDEFINED, // VkImageLayout initialLayout;
};
m_colorImage = MovePtr<Image>(new Image(vk, device, allocator, imageCreateInfo, MemoryRequirement::Any));
m_colorImageView = makeImageView(vk, device, **m_colorImage, VK_IMAGE_VIEW_TYPE_2D, m_colorFormat, m_colorSubresourceRange);
// Buffer to copy attachment data after rendering
const VkDeviceSize bitmapSize = tcu::getPixelSize(mapVkFormat(m_colorFormat)) * m_renderSize.x() * m_renderSize.y();
m_colorAttachmentBuffer = MovePtr<Buffer>(new Buffer(
vk, device, allocator, makeBufferCreateInfo(bitmapSize, VK_BUFFER_USAGE_TRANSFER_DST_BIT), MemoryRequirement::HostVisible));
{
const Allocation& alloc = m_colorAttachmentBuffer->getAllocation();
deMemset(alloc.getHostPtr(), 0, (size_t)bitmapSize);
flushMappedMemoryRange(vk, device, alloc.getMemory(), alloc.getOffset(), bitmapSize);
}
}
// Vertex buffer
{
const VkDeviceSize bufferSize = vertices.size() * sizeof(vertices[0]);
m_vertexBuffer = MovePtr<Buffer>(new Buffer(
vk, device, allocator, makeBufferCreateInfo(bufferSize, VK_BUFFER_USAGE_VERTEX_BUFFER_BIT), MemoryRequirement::HostVisible));
const Allocation& alloc = m_vertexBuffer->getAllocation();
deMemcpy(alloc.getHostPtr(), &vertices[0], (size_t)bufferSize);
flushMappedMemoryRange(vk, device, alloc.getMemory(), alloc.getOffset(), bufferSize);
}
// Pipeline layout
{
m_pipelineLayout = makePipelineLayoutWithoutDescriptors(vk, device);
}
// Renderpass
{
const VkAttachmentDescription colorAttachmentDescription =
{
(VkAttachmentDescriptionFlags)0, // VkAttachmentDescriptionFlags flags;
m_colorFormat, // VkFormat format;
VK_SAMPLE_COUNT_1_BIT, // VkSampleCountFlagBits samples;
VK_ATTACHMENT_LOAD_OP_CLEAR, // VkAttachmentLoadOp loadOp;
VK_ATTACHMENT_STORE_OP_STORE, // VkAttachmentStoreOp storeOp;
VK_ATTACHMENT_LOAD_OP_DONT_CARE, // VkAttachmentLoadOp stencilLoadOp;
VK_ATTACHMENT_STORE_OP_DONT_CARE, // VkAttachmentStoreOp stencilStoreOp;
VK_IMAGE_LAYOUT_UNDEFINED, // VkImageLayout initialLayout;
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL, // VkImageLayout finalLayout;
};
const VkAttachmentReference colorAttachmentReference =
{
0u, // deUint32 attachment;
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL // VkImageLayout layout;
};
const VkAttachmentReference depthAttachmentReference =
{
VK_ATTACHMENT_UNUSED, // deUint32 attachment;
VK_IMAGE_LAYOUT_UNDEFINED // VkImageLayout layout;
};
const VkSubpassDescription subpassDescription =
{
(VkSubpassDescriptionFlags)0, // VkSubpassDescriptionFlags flags;
VK_PIPELINE_BIND_POINT_GRAPHICS, // VkPipelineBindPoint pipelineBindPoint;
0u, // deUint32 inputAttachmentCount;
DE_NULL, // const VkAttachmentReference* pInputAttachments;
1u, // deUint32 colorAttachmentCount;
&colorAttachmentReference, // const VkAttachmentReference* pColorAttachments;
DE_NULL, // const VkAttachmentReference* pResolveAttachments;
&depthAttachmentReference, // const VkAttachmentReference* pDepthStencilAttachment;
0u, // deUint32 preserveAttachmentCount;
DE_NULL // const deUint32* pPreserveAttachments;
};
const VkRenderPassCreateInfo renderPassInfo =
{
VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO, // VkStructureType sType;
DE_NULL, // const void* pNext;
(VkRenderPassCreateFlags)0, // VkRenderPassCreateFlags flags;
1u, // deUint32 attachmentCount;
&colorAttachmentDescription, // const VkAttachmentDescription* pAttachments;
1u, // deUint32 subpassCount;
&subpassDescription, // const VkSubpassDescription* pSubpasses;
0u, // deUint32 dependencyCount;
DE_NULL // const VkSubpassDependency* pDependencies;
};
m_renderPass = createRenderPass(vk, device, &renderPassInfo);
}
// Framebuffer
{
const VkFramebufferCreateInfo framebufferInfo = {
VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO, // VkStructureType sType;
DE_NULL, // const void* pNext;
(VkFramebufferCreateFlags)0, // VkFramebufferCreateFlags flags;
*m_renderPass, // VkRenderPass renderPass;
1u, // uint32_t attachmentCount;
&m_colorImageView.get(), // const VkImageView* pAttachments;
m_renderSize.x(), // uint32_t width;
m_renderSize.y(), // uint32_t height;
1u, // uint32_t layers;
};
m_framebuffer = createFramebuffer(vk, device, &framebufferInfo);
}
// Graphics pipeline
{
const deUint32 vertexStride = sizeof(Vec4);
const VkFormat vertexFormat = VK_FORMAT_R32G32B32A32_SFLOAT;
const VkVertexInputBindingDescription bindingDesc =
{
0u, // uint32_t binding;
vertexStride, // uint32_t stride;
VK_VERTEX_INPUT_RATE_VERTEX, // VkVertexInputRate inputRate;
};
const VkVertexInputAttributeDescription attributeDesc =
{
0u, // uint32_t location;
0u, // uint32_t binding;
vertexFormat, // VkFormat format;
0u, // uint32_t offset;
};
const VkPipelineVertexInputStateCreateInfo vertexInputStateInfo =
{
VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO, // VkStructureType sType;
DE_NULL, // const void* pNext;
(VkPipelineVertexInputStateCreateFlags)0, // VkPipelineVertexInputStateCreateFlags flags;
1u, // uint32_t vertexBindingDescriptionCount;
&bindingDesc, // const VkVertexInputBindingDescription* pVertexBindingDescriptions;
1u, // uint32_t vertexAttributeDescriptionCount;
&attributeDesc, // const VkVertexInputAttributeDescription* pVertexAttributeDescriptions;
};
const VkPipelineInputAssemblyStateCreateInfo pipelineInputAssemblyStateInfo =
{
VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO, // VkStructureType sType;
DE_NULL, // const void* pNext;
(VkPipelineInputAssemblyStateCreateFlags)0, // VkPipelineInputAssemblyStateCreateFlags flags;
m_primitiveTopology, // VkPrimitiveTopology topology;
VK_FALSE, // VkBool32 primitiveRestartEnable;
};
const VkPipelineTessellationStateCreateInfo pipelineTessellationStateInfo =
{
VK_STRUCTURE_TYPE_PIPELINE_TESSELLATION_STATE_CREATE_INFO, // VkStructureType sType;
DE_NULL, // const void* pNext;
(VkPipelineTessellationStateCreateFlags)0, // VkPipelineTessellationStateCreateFlags flags;
m_numPatchControlPoints, // uint32_t patchControlPoints;
};
const VkViewport viewport = makeViewport(
0.0f, 0.0f,
static_cast<float>(m_renderSize.x()), static_cast<float>(m_renderSize.y()),
0.0f, 1.0f);
const VkRect2D scissor = {
makeOffset2D(0, 0),
makeExtent2D(m_renderSize.x(), m_renderSize.y()),
};
const VkPipelineViewportStateCreateInfo pipelineViewportStateInfo =
{
VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO, // VkStructureType sType;
DE_NULL, // const void* pNext;
(VkPipelineViewportStateCreateFlags)0, // VkPipelineViewportStateCreateFlags flags;
1u, // uint32_t viewportCount;
&viewport, // const VkViewport* pViewports;
1u, // uint32_t scissorCount;
&scissor, // const VkRect2D* pScissors;
};
const VkPipelineRasterizationStateCreateInfo pipelineRasterizationStateInfo =
{
VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO, // VkStructureType sType;
DE_NULL, // const void* pNext;
(VkPipelineRasterizationStateCreateFlags)0, // VkPipelineRasterizationStateCreateFlags flags;
m_depthClampEnable, // VkBool32 depthClampEnable;
VK_FALSE, // VkBool32 rasterizerDiscardEnable;
VK_POLYGON_MODE_FILL, // VkPolygonMode polygonMode;
VK_CULL_MODE_NONE, // VkCullModeFlags cullMode;
VK_FRONT_FACE_COUNTER_CLOCKWISE, // VkFrontFace frontFace;
VK_FALSE, // VkBool32 depthBiasEnable;
0.0f, // float depthBiasConstantFactor;
0.0f, // float depthBiasClamp;
0.0f, // float depthBiasSlopeFactor;
m_lineWidth, // float lineWidth;
};
const VkPipelineMultisampleStateCreateInfo pipelineMultisampleStateInfo =
{
VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO, // VkStructureType sType;
DE_NULL, // const void* pNext;
(VkPipelineMultisampleStateCreateFlags)0, // VkPipelineMultisampleStateCreateFlags flags;
VK_SAMPLE_COUNT_1_BIT, // VkSampleCountFlagBits rasterizationSamples;
VK_FALSE, // VkBool32 sampleShadingEnable;
0.0f, // float minSampleShading;
DE_NULL, // const VkSampleMask* pSampleMask;
VK_FALSE, // VkBool32 alphaToCoverageEnable;
VK_FALSE // VkBool32 alphaToOneEnable;
};
const VkStencilOpState stencilOpState = makeStencilOpState(
VK_STENCIL_OP_KEEP, // stencil fail
VK_STENCIL_OP_KEEP, // depth & stencil pass
VK_STENCIL_OP_KEEP, // depth only fail
VK_COMPARE_OP_NEVER, // compare op
0u, // compare mask
0u, // write mask
0u); // reference
const VkPipelineDepthStencilStateCreateInfo pipelineDepthStencilStateInfo =
{
VK_STRUCTURE_TYPE_PIPELINE_DEPTH_STENCIL_STATE_CREATE_INFO, // VkStructureType sType;
DE_NULL, // const void* pNext;
(VkPipelineDepthStencilStateCreateFlags)0, // VkPipelineDepthStencilStateCreateFlags flags;
VK_FALSE, // VkBool32 depthTestEnable;
VK_FALSE, // VkBool32 depthWriteEnable;
VK_COMPARE_OP_LESS, // VkCompareOp depthCompareOp;
VK_FALSE, // VkBool32 depthBoundsTestEnable;
VK_FALSE, // VkBool32 stencilTestEnable;
stencilOpState, // VkStencilOpState front;
stencilOpState, // VkStencilOpState back;
0.0f, // float minDepthBounds;
1.0f, // float maxDepthBounds;
};
const VkColorComponentFlags colorComponentsAll = VK_COLOR_COMPONENT_R_BIT | VK_COLOR_COMPONENT_G_BIT | VK_COLOR_COMPONENT_B_BIT | VK_COLOR_COMPONENT_A_BIT;
const VkPipelineColorBlendAttachmentState pipelineColorBlendAttachmentState =
{
m_blendEnable, // VkBool32 blendEnable;
VK_BLEND_FACTOR_SRC_ALPHA, // VkBlendFactor srcColorBlendFactor;
VK_BLEND_FACTOR_ONE, // VkBlendFactor dstColorBlendFactor;
VK_BLEND_OP_ADD, // VkBlendOp colorBlendOp;
VK_BLEND_FACTOR_SRC_ALPHA, // VkBlendFactor srcAlphaBlendFactor;
VK_BLEND_FACTOR_ONE, // VkBlendFactor dstAlphaBlendFactor;
VK_BLEND_OP_ADD, // VkBlendOp alphaBlendOp;
colorComponentsAll, // VkColorComponentFlags colorWriteMask;
};
const VkPipelineColorBlendStateCreateInfo pipelineColorBlendStateInfo =
{
VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO, // VkStructureType sType;
DE_NULL, // const void* pNext;
(VkPipelineColorBlendStateCreateFlags)0, // VkPipelineColorBlendStateCreateFlags flags;
VK_FALSE, // VkBool32 logicOpEnable;
VK_LOGIC_OP_COPY, // VkLogicOp logicOp;
1u, // deUint32 attachmentCount;
&pipelineColorBlendAttachmentState, // const VkPipelineColorBlendAttachmentState* pAttachments;
{ 0.0f, 0.0f, 0.0f, 0.0f }, // float blendConstants[4];
};
// Create shader stages
std::vector<VkPipelineShaderStageCreateInfo> shaderStages;
VkShaderStageFlags stageFlags = (VkShaderStageFlags)0;
DE_ASSERT(shaders.size() <= MAX_NUM_SHADER_MODULES);
for (deUint32 shaderNdx = 0; shaderNdx < shaders.size(); ++shaderNdx)
{
m_shaderModules[shaderNdx] = createShaderModule(vk, device, *shaders[shaderNdx].binary, (VkShaderModuleCreateFlags)0);
const VkPipelineShaderStageCreateInfo pipelineShaderStageInfo =
{
VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO, // VkStructureType sType;
DE_NULL, // const void* pNext;
(VkPipelineShaderStageCreateFlags)0, // VkPipelineShaderStageCreateFlags flags;
shaders[shaderNdx].stage, // VkShaderStageFlagBits stage;
*m_shaderModules[shaderNdx], // VkShaderModule module;
"main", // const char* pName;
DE_NULL, // const VkSpecializationInfo* pSpecializationInfo;
};
shaderStages.push_back(pipelineShaderStageInfo);
stageFlags |= shaders[shaderNdx].stage;
}
DE_ASSERT(
(m_primitiveTopology != VK_PRIMITIVE_TOPOLOGY_PATCH_LIST) ||
(stageFlags & (VK_SHADER_STAGE_TESSELLATION_CONTROL_BIT | VK_SHADER_STAGE_TESSELLATION_EVALUATION_BIT)));
const bool tessellationEnabled = (m_primitiveTopology == VK_PRIMITIVE_TOPOLOGY_PATCH_LIST);
const VkGraphicsPipelineCreateInfo graphicsPipelineInfo =
{
VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO, // VkStructureType sType;
DE_NULL, // const void* pNext;
(VkPipelineCreateFlags)0, // VkPipelineCreateFlags flags;
static_cast<deUint32>(shaderStages.size()), // deUint32 stageCount;
&shaderStages[0], // const VkPipelineShaderStageCreateInfo* pStages;
&vertexInputStateInfo, // const VkPipelineVertexInputStateCreateInfo* pVertexInputState;
&pipelineInputAssemblyStateInfo, // const VkPipelineInputAssemblyStateCreateInfo* pInputAssemblyState;
(tessellationEnabled ? &pipelineTessellationStateInfo : DE_NULL), // const VkPipelineTessellationStateCreateInfo* pTessellationState;
&pipelineViewportStateInfo, // const VkPipelineViewportStateCreateInfo* pViewportState;
&pipelineRasterizationStateInfo, // const VkPipelineRasterizationStateCreateInfo* pRasterizationState;
&pipelineMultisampleStateInfo, // const VkPipelineMultisampleStateCreateInfo* pMultisampleState;
&pipelineDepthStencilStateInfo, // const VkPipelineDepthStencilStateCreateInfo* pDepthStencilState;
&pipelineColorBlendStateInfo, // const VkPipelineColorBlendStateCreateInfo* pColorBlendState;
DE_NULL, // const VkPipelineDynamicStateCreateInfo* pDynamicState;
*m_pipelineLayout, // VkPipelineLayout layout;
*m_renderPass, // VkRenderPass renderPass;
0u, // deUint32 subpass;
DE_NULL, // VkPipeline basePipelineHandle;
0, // deInt32 basePipelineIndex;
};
m_pipeline = createGraphicsPipeline(vk, device, DE_NULL, &graphicsPipelineInfo);
}
// Record commands
{
const VkDeviceSize zeroOffset = 0ull;
beginCommandBuffer(vk, *m_cmdBuffer);
// Begin render pass
{
const VkClearValue clearValue = makeClearValueColor(Vec4(0.0f, 0.0f, 0.0f, 1.0f));
const VkRect2D renderArea =
{
makeOffset2D(0, 0),
makeExtent2D(m_renderSize.x(), m_renderSize.y())
};
const VkRenderPassBeginInfo renderPassBeginInfo = {
VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO, // VkStructureType sType;
DE_NULL, // const void* pNext;
*m_renderPass, // VkRenderPass renderPass;
*m_framebuffer, // VkFramebuffer framebuffer;
renderArea, // VkRect2D renderArea;
1u, // uint32_t clearValueCount;
&clearValue, // const VkClearValue* pClearValues;
};
vk.cmdBeginRenderPass(*m_cmdBuffer, &renderPassBeginInfo, VK_SUBPASS_CONTENTS_INLINE);
}
vk.cmdBindPipeline(*m_cmdBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, *m_pipeline);
vk.cmdBindVertexBuffers(*m_cmdBuffer, 0u, 1u, &(**m_vertexBuffer), &zeroOffset);
vk.cmdDraw(*m_cmdBuffer, m_numVertices, 1u, 0u, 1u);
vk.cmdEndRenderPass(*m_cmdBuffer);
// Barrier: draw -> copy from image
{
const VkImageMemoryBarrier barrier = makeImageMemoryBarrier(
VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT, VK_ACCESS_TRANSFER_READ_BIT,
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL, VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
**m_colorImage, m_colorSubresourceRange);
vk.cmdPipelineBarrier(*m_cmdBuffer, VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT, VK_PIPELINE_STAGE_TRANSFER_BIT, (VkDependencyFlags)0,
0u, DE_NULL, 0u, DE_NULL, 1u, &barrier);
}
{
const VkBufferImageCopy copyRegion = makeBufferImageCopy(makeImageSubresourceLayers(VK_IMAGE_ASPECT_COLOR_BIT, 0u, 0u, 1u), m_imageExtent);
vk.cmdCopyImageToBuffer(*m_cmdBuffer, **m_colorImage, VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL, **m_colorAttachmentBuffer, 1u, &copyRegion);
}
// Barrier: copy to buffer -> host read
{
const VkBufferMemoryBarrier barrier = makeBufferMemoryBarrier(
VK_ACCESS_TRANSFER_WRITE_BIT, VK_ACCESS_HOST_READ_BIT,
**m_colorAttachmentBuffer, 0ull, VK_WHOLE_SIZE);
vk.cmdPipelineBarrier(*m_cmdBuffer, VK_PIPELINE_STAGE_TRANSFER_BIT, VK_PIPELINE_STAGE_HOST_BIT, (VkDependencyFlags)0,
0u, DE_NULL, 1u, &barrier, 0u, DE_NULL);
}
endCommandBuffer(vk, *m_cmdBuffer);
}
}
void DrawContext::draw (void)
{
const DeviceInterface& vk = m_context.getDeviceInterface();
const VkDevice device = m_context.getDevice();
const VkQueue queue = m_context.getUniversalQueue();
tcu::TestLog& log = m_context.getTestContext().getLog();
submitCommandsAndWait(vk, device, queue, *m_cmdBuffer);
log << tcu::LogImageSet("attachments", "") << tcu::LogImage("color0", "", getColorPixels()) << tcu::TestLog::EndImageSet;
}
tcu::ConstPixelBufferAccess DrawContext::getColorPixels (void) const
{
const DeviceInterface& vk = m_context.getDeviceInterface();
const VkDevice device = m_context.getDevice();
const Allocation& alloc = m_colorAttachmentBuffer->getAllocation();
invalidateMappedMemoryRange(vk, device, alloc.getMemory(), alloc.getOffset(), VK_WHOLE_SIZE);
return tcu::ConstPixelBufferAccess(mapVkFormat(m_colorFormat), m_imageExtent.width, m_imageExtent.height, m_imageExtent.depth, alloc.getHostPtr());
}
std::vector<Vec4> genVertices (const VkPrimitiveTopology topology, const Vec4& offset, const float slope)
{
const float p = 1.0f;
const float hp = 0.5f;
const float z = 0.0f;
const float w = 1.0f;
std::vector<Vec4> vertices;
// We're setting adjacent vertices to zero where needed, as we don't use them in meaningful way.
switch (topology)
{
case VK_PRIMITIVE_TOPOLOGY_POINT_LIST:
vertices.push_back(offset + Vec4(0.0f, 0.0f, slope/2.0f + z, w));
vertices.push_back(offset + Vec4( -hp, -hp, z, w));
vertices.push_back(offset + Vec4( hp, -hp, slope + z, w));
vertices.push_back(offset + Vec4( -hp, hp, z, w));
vertices.push_back(offset + Vec4( hp, hp, slope + z, w));
break;
case VK_PRIMITIVE_TOPOLOGY_LINE_LIST:
vertices.push_back(offset + Vec4(-p, -p, z, w));
vertices.push_back(offset + Vec4( p, p, slope + z, w)); // line 0
vertices.push_back(offset + Vec4( p, p, slope + z, w));
vertices.push_back(offset + Vec4( p, -p, slope + z, w)); // line 1
vertices.push_back(offset + Vec4( p, -p, slope + z, w));
vertices.push_back(offset + Vec4(-p, p, z, w)); // line 2
break;
case VK_PRIMITIVE_TOPOLOGY_LINE_LIST_WITH_ADJACENCY:
vertices.push_back(Vec4());
vertices.push_back(offset + Vec4(-p, -p, z, w));
vertices.push_back(offset + Vec4( p, p, slope + z, w)); // line 0
vertices.push_back(Vec4());
vertices.push_back(Vec4());
vertices.push_back(offset + Vec4( p, p, slope + z, w));
vertices.push_back(offset + Vec4( p, -p, slope + z, w)); // line 1
vertices.push_back(Vec4());
vertices.push_back(Vec4());
vertices.push_back(offset + Vec4( p, -p, slope + z, w));
vertices.push_back(offset + Vec4(-p, p, z, w)); // line 2
vertices.push_back(Vec4());
break;
case VK_PRIMITIVE_TOPOLOGY_LINE_STRIP:
vertices.push_back(offset + Vec4(-p, -p, z, w));
vertices.push_back(offset + Vec4( p, p, slope + z, w)); // line 0
vertices.push_back(offset + Vec4( p, -p, slope + z, w)); // line 1
vertices.push_back(offset + Vec4(-p, p, z, w)); // line 2
break;
case VK_PRIMITIVE_TOPOLOGY_LINE_STRIP_WITH_ADJACENCY:
vertices.push_back(Vec4());
vertices.push_back(offset + Vec4(-p, -p, z, w));
vertices.push_back(offset + Vec4( p, p, slope + z, w)); // line 0
vertices.push_back(offset + Vec4( p, -p, slope + z, w)); // line 1
vertices.push_back(offset + Vec4(-p, p, z, w)); // line 2
vertices.push_back(Vec4());
break;
case VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST:
vertices.push_back(offset + Vec4( p, -p, slope + z, w));
vertices.push_back(offset + Vec4(-p, -p, z, w));
vertices.push_back(offset + Vec4(-p, p, z, w)); // triangle 0
vertices.push_back(offset + Vec4(-p, p, z, w));
vertices.push_back(offset + Vec4( p, p, slope + z, w));
vertices.push_back(offset + Vec4( p, -p, slope + z, w)); // triangle 1
break;
case VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST_WITH_ADJACENCY:
vertices.push_back(offset + Vec4( p, -p, slope + z, w));
vertices.push_back(Vec4());
vertices.push_back(offset + Vec4(-p, -p, z, w));
vertices.push_back(Vec4());
vertices.push_back(offset + Vec4(-p, p, z, w)); // triangle 0
vertices.push_back(Vec4());
vertices.push_back(offset + Vec4(-p, p, z, w));
vertices.push_back(Vec4());
vertices.push_back(offset + Vec4( p, p, slope + z, w));
vertices.push_back(Vec4());
vertices.push_back(offset + Vec4( p, -p, slope + z, w)); // triangle 1
vertices.push_back(Vec4());
break;
case VK_PRIMITIVE_TOPOLOGY_TRIANGLE_STRIP:
vertices.push_back(offset + Vec4(-p, -p, z, w));
vertices.push_back(offset + Vec4(-p, p, z, w));
vertices.push_back(offset + Vec4( p, -p, slope + z, w)); // triangle 0
vertices.push_back(offset + Vec4( p, p, slope + z, w)); // triangle 1
break;
case VK_PRIMITIVE_TOPOLOGY_TRIANGLE_STRIP_WITH_ADJACENCY:
vertices.push_back(offset + Vec4(-p, -p, z, w));
vertices.push_back(Vec4());
vertices.push_back(offset + Vec4(-p, p, z, w));
vertices.push_back(Vec4());
vertices.push_back(offset + Vec4( p, -p, slope + z, w)); // triangle 0
vertices.push_back(Vec4());
vertices.push_back(offset + Vec4( p, p, slope + z, w)); // triangle 1
vertices.push_back(Vec4());
break;
case VK_PRIMITIVE_TOPOLOGY_TRIANGLE_FAN:
vertices.push_back(offset + Vec4( p, -p, slope + z, w));
vertices.push_back(offset + Vec4(-p, -p, z, w));
vertices.push_back(offset + Vec4(-p, p, z, w)); // triangle 0
vertices.push_back(offset + Vec4( p, p, slope + z, w)); // triangle 1
break;
case VK_PRIMITIVE_TOPOLOGY_PATCH_LIST:
DE_ASSERT(0);
break;
default:
DE_ASSERT(0);
break;
}
return vertices;
}
bool inline isColorInRange (const Vec4& color, const Vec4& minColor, const Vec4& maxColor)
{
return (minColor.x() <= color.x() && color.x() <= maxColor.x())
&& (minColor.y() <= color.y() && color.y() <= maxColor.y())
&& (minColor.z() <= color.z() && color.z() <= maxColor.z())
&& (minColor.w() <= color.w() && color.w() <= maxColor.w());
}
//! Count pixels that match color within threshold, in the specified region.
int countPixels (const tcu::ConstPixelBufferAccess pixels, const IVec2& regionOffset, const IVec2& regionSize, const Vec4& color, const Vec4& colorThreshold)
{
const Vec4 minColor = color - colorThreshold;
const Vec4 maxColor = color + colorThreshold;
const int xEnd = regionOffset.x() + regionSize.x();
const int yEnd = regionOffset.y() + regionSize.y();
int numPixels = 0;
DE_ASSERT(xEnd <= pixels.getWidth());
DE_ASSERT(yEnd <= pixels.getHeight());
for (int y = regionOffset.y(); y < yEnd; ++y)
for (int x = regionOffset.x(); x < xEnd; ++x)
{
if (isColorInRange(pixels.getPixel(x, y), minColor, maxColor))
++numPixels;
}
return numPixels;
}
int countPixels (const tcu::ConstPixelBufferAccess pixels, const Vec4& color, const Vec4& colorThreshold)
{
return countPixels(pixels, IVec2(), IVec2(pixels.getWidth(), pixels.getHeight()), color, colorThreshold);
}
//! Clipping against the default clip volume.
namespace ClipVolume
{
//! Used by wide lines test.
enum LineOrientation
{
LINE_ORIENTATION_AXIS_ALIGNED,
LINE_ORIENTATION_DIAGONAL,
};
void addSimplePrograms (SourceCollections& programCollection, const float pointSize = 0.0f)
{
// Vertex shader
{
const bool usePointSize = pointSize > 0.0f;
std::ostringstream src;
src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_450) << "\n"
<< "\n"
<< "layout(location = 0) in vec4 v_position;\n"
<< "\n"
<< "out gl_PerVertex {\n"
<< " vec4 gl_Position;\n"
<< (usePointSize ? " float gl_PointSize;\n" : "")
<< "};\n"
<< "\n"
<< "void main (void)\n"
<< "{\n"
<< " gl_Position = v_position;\n"
<< (usePointSize ? " gl_PointSize = " + de::floatToString(pointSize, 1) + ";\n" : "")
<< "}\n";
programCollection.glslSources.add("vert") << glu::VertexSource(src.str());
}
// Fragment shader
{
std::ostringstream src;
src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_450) << "\n"
<< "\n"
<< "layout(location = 0) out vec4 o_color;\n"
<< "\n"
<< "void main (void)\n"
<< "{\n"
<< " o_color = vec4(1.0, gl_FragCoord.z, 0.0, 1.0);\n"
<< "}\n";
programCollection.glslSources.add("frag") << glu::FragmentSource(src.str());
}
}
void initPrograms (SourceCollections& programCollection, const VkPrimitiveTopology topology)
{
const float pointSize = (topology == VK_PRIMITIVE_TOPOLOGY_POINT_LIST ? 1.0f : 0.0f);
addSimplePrograms(programCollection, pointSize);
}
void initPrograms (SourceCollections& programCollection, const LineOrientation lineOrientation)
{
DE_UNREF(lineOrientation);
addSimplePrograms(programCollection);
}
void initProgramsPointSize (SourceCollections& programCollection)
{
addSimplePrograms(programCollection, 0.75f * RENDER_SIZE);
}
//! Primitives fully inside the clip volume.
tcu::TestStatus testPrimitivesInside (Context& context, const VkPrimitiveTopology topology)
{
int minExpectedBlackPixels = 0;
switch (topology)
{
case VK_PRIMITIVE_TOPOLOGY_POINT_LIST:
// We draw only 5 points.
minExpectedBlackPixels = NUM_RENDER_PIXELS - 5;
break;
case VK_PRIMITIVE_TOPOLOGY_LINE_LIST:
case VK_PRIMITIVE_TOPOLOGY_LINE_STRIP:
case VK_PRIMITIVE_TOPOLOGY_LINE_LIST_WITH_ADJACENCY:
case VK_PRIMITIVE_TOPOLOGY_LINE_STRIP_WITH_ADJACENCY:
// Allow for some error.
minExpectedBlackPixels = NUM_RENDER_PIXELS - 3 * RENDER_SIZE;
break;
case VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST:
case VK_PRIMITIVE_TOPOLOGY_TRIANGLE_STRIP:
case VK_PRIMITIVE_TOPOLOGY_TRIANGLE_FAN:
case VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST_WITH_ADJACENCY:
case VK_PRIMITIVE_TOPOLOGY_TRIANGLE_STRIP_WITH_ADJACENCY:
// All render area should be covered.
minExpectedBlackPixels = 0;
break;
default:
DE_ASSERT(0);
break;
}
std::vector<Shader> shaders;
shaders.push_back(Shader(VK_SHADER_STAGE_VERTEX_BIT, context.getBinaryCollection().get("vert")));
shaders.push_back(Shader(VK_SHADER_STAGE_FRAGMENT_BIT, context.getBinaryCollection().get("frag")));
tcu::TestLog& log = context.getTestContext().getLog();
int numPassed = 0;
static const struct
{
const char* const desc;
float zPos;
} cases[] =
{
{ "Draw primitives at near clipping plane, z = 0.0", 0.0f, },
{ "Draw primitives at z = 0.5", 0.5f, },
{ "Draw primitives at far clipping plane, z = 1.0", 1.0f, },
};
for (int caseNdx = 0; caseNdx < DE_LENGTH_OF_ARRAY(cases); ++caseNdx)
{
log << tcu::TestLog::Message << cases[caseNdx].desc << tcu::TestLog::EndMessage;
const std::vector<Vec4> vertices = genVertices(topology, Vec4(0.0f, 0.0f, cases[caseNdx].zPos, 0.0f), 0.0f);
DrawContext drawContext(context, shaders, vertices, topology);
drawContext.draw();
const int numBlackPixels = countPixels(drawContext.getColorPixels(), Vec4(0.0f, 0.0f, 0.0f, 1.0f), Vec4());
if (numBlackPixels >= minExpectedBlackPixels)
++numPassed;
}
return (numPassed == DE_LENGTH_OF_ARRAY(cases) ? tcu::TestStatus::pass("OK") : tcu::TestStatus::fail("Rendered image(s) are incorrect"));
}
//! Primitives fully outside the clip volume.
tcu::TestStatus testPrimitivesOutside (Context& context, const VkPrimitiveTopology topology)
{
std::vector<Shader> shaders;
shaders.push_back(Shader(VK_SHADER_STAGE_VERTEX_BIT, context.getBinaryCollection().get("vert")));
shaders.push_back(Shader(VK_SHADER_STAGE_FRAGMENT_BIT, context.getBinaryCollection().get("frag")));
tcu::TestLog& log = context.getTestContext().getLog();
int numPassed = 0;
static const struct
{
const char* const desc;
float zPos;
} cases[] =
{
{ "Draw primitives in front of the near clipping plane, z < 0.0", -0.5f, },
{ "Draw primitives behind the far clipping plane, z > 1.0", 1.5f, },
};
log << tcu::TestLog::Message << "Drawing primitives outside the clip volume. Expecting an empty image." << tcu::TestLog::EndMessage;
for (int caseNdx = 0; caseNdx < DE_LENGTH_OF_ARRAY(cases); ++caseNdx)
{
log << tcu::TestLog::Message << cases[caseNdx].desc << tcu::TestLog::EndMessage;
const std::vector<Vec4> vertices = genVertices(topology, Vec4(0.0f, 0.0f, cases[caseNdx].zPos, 0.0f), 0.0f);
DrawContext drawContext(context, shaders, vertices, topology);
drawContext.draw();
// All pixels must be black -- nothing is drawn.
const int numBlackPixels = countPixels(drawContext.getColorPixels(), Vec4(0.0f, 0.0f, 0.0f, 1.0f), Vec4());
if (numBlackPixels == NUM_RENDER_PIXELS)
++numPassed;
}
return (numPassed == DE_LENGTH_OF_ARRAY(cases) ? tcu::TestStatus::pass("OK") : tcu::TestStatus::fail("Rendered image(s) are incorrect"));
}
//! Primitives partially outside the clip volume, but depth clamped
tcu::TestStatus testPrimitivesDepthClamp (Context& context, const VkPrimitiveTopology topology)
{
requireFeatures(context.getInstanceInterface(), context.getPhysicalDevice(), FEATURE_DEPTH_CLAMP);
std::vector<Shader> shaders;
shaders.push_back(Shader(VK_SHADER_STAGE_VERTEX_BIT, context.getBinaryCollection().get("vert")));
shaders.push_back(Shader(VK_SHADER_STAGE_FRAGMENT_BIT, context.getBinaryCollection().get("frag")));
const int numCases = 4;
const IVec2 regionSize = IVec2(RENDER_SIZE/2, RENDER_SIZE); //! size of the clamped region
const int regionPixels = regionSize.x() * regionSize.y();
tcu::TestLog& log = context.getTestContext().getLog();
int numPassed = 0;
static const struct
{
const char* const desc;
float zPos;
bool depthClampEnable;
IVec2 regionOffset;
Vec4 color;
} cases[numCases] =
{
{ "Draw primitives intersecting the near clipping plane, depth clamp disabled", -0.5f, false, IVec2(0, 0), Vec4(0.0f, 0.0f, 0.0f, 1.0f) },
{ "Draw primitives intersecting the near clipping plane, depth clamp enabled", -0.5f, true, IVec2(0, 0), Vec4(1.0f, 0.0f, 0.0f, 1.0f) },
{ "Draw primitives intersecting the far clipping plane, depth clamp disabled", 0.5f, false, IVec2(RENDER_SIZE/2, 0), Vec4(0.0f, 0.0f, 0.0f, 1.0f) },
{ "Draw primitives intersecting the far clipping plane, depth clamp enabled", 0.5f, true, IVec2(RENDER_SIZE/2, 0), Vec4(1.0f, 1.0f, 0.0f, 1.0f) },
};
// Per case minimum number of colored pixels.
int caseMinPixels[numCases] = { 0, 0, 0, 0 };
switch (topology)
{
case VK_PRIMITIVE_TOPOLOGY_POINT_LIST:
caseMinPixels[0] = caseMinPixels[2] = regionPixels - 1;
caseMinPixels[1] = caseMinPixels[3] = 2;
break;
case VK_PRIMITIVE_TOPOLOGY_LINE_LIST:
case VK_PRIMITIVE_TOPOLOGY_LINE_STRIP:
case VK_PRIMITIVE_TOPOLOGY_LINE_LIST_WITH_ADJACENCY:
case VK_PRIMITIVE_TOPOLOGY_LINE_STRIP_WITH_ADJACENCY:
caseMinPixels[0] = regionPixels;
caseMinPixels[1] = RENDER_SIZE - 2;
caseMinPixels[2] = regionPixels;
caseMinPixels[3] = 2 * (RENDER_SIZE - 2);
break;
case VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST:
case VK_PRIMITIVE_TOPOLOGY_TRIANGLE_STRIP:
case VK_PRIMITIVE_TOPOLOGY_TRIANGLE_FAN:
case VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST_WITH_ADJACENCY:
case VK_PRIMITIVE_TOPOLOGY_TRIANGLE_STRIP_WITH_ADJACENCY:
caseMinPixels[0] = caseMinPixels[1] = caseMinPixels[2] = caseMinPixels[3] = regionPixels;
break;
default:
DE_ASSERT(0);
break;
}
for (int caseNdx = 0; caseNdx < numCases; ++caseNdx)
{
log << tcu::TestLog::Message << cases[caseNdx].desc << tcu::TestLog::EndMessage;
const std::vector<Vec4> vertices = genVertices(topology, Vec4(0.0f, 0.0f, cases[caseNdx].zPos, 0.0f), 1.0f);
DrawContext drawContext(context, shaders, vertices, topology, static_cast<deUint32>(RENDER_SIZE), cases[caseNdx].depthClampEnable);
drawContext.draw();
const int numPixels = countPixels(drawContext.getColorPixels(), cases[caseNdx].regionOffset, regionSize, cases[caseNdx].color, Vec4());
if (numPixels >= caseMinPixels[caseNdx])
++numPassed;
}
return (numPassed == numCases ? tcu::TestStatus::pass("OK") : tcu::TestStatus::fail("Rendered image(s) are incorrect"));
}
//! Large point clipping
//! Spec: If the primitive under consideration is a point, then clipping passes it unchanged if it lies within the clip volume;
//! otherwise, it is discarded.
tcu::TestStatus testLargePoints (Context& context)
{
requireFeatures(context.getInstanceInterface(), context.getPhysicalDevice(), FEATURE_LARGE_POINTS);
std::vector<Shader> shaders;
shaders.push_back(Shader(VK_SHADER_STAGE_VERTEX_BIT, context.getBinaryCollection().get("vert")));
shaders.push_back(Shader(VK_SHADER_STAGE_FRAGMENT_BIT, context.getBinaryCollection().get("frag")));
std::vector<Vec4> vertices;
{
const float delta = 0.1f; // much smaller than the point size
const float p = 1.0f + delta;
vertices.push_back(Vec4( -p, -p, 0.1f, 1.0f));
vertices.push_back(Vec4( -p, p, 0.2f, 1.0f));
vertices.push_back(Vec4( p, p, 0.4f, 1.0f));
vertices.push_back(Vec4( p, -p, 0.6f, 1.0f));
vertices.push_back(Vec4(0.0f, -p, 0.8f, 1.0f));
vertices.push_back(Vec4( p, 0.0f, 0.9f, 1.0f));
vertices.push_back(Vec4(0.0f, p, 0.1f, 1.0f));
vertices.push_back(Vec4( -p, 0.0f, 0.2f, 1.0f));
}
tcu::TestLog& log = context.getTestContext().getLog();
log << tcu::TestLog::Message << "Drawing several large points just outside the clip volume. Expecting an empty image." << tcu::TestLog::EndMessage;
DrawContext drawContext(context, shaders, vertices, VK_PRIMITIVE_TOPOLOGY_POINT_LIST);
drawContext.draw();
// All pixels must be black -- nothing is drawn.
const int numBlackPixels = countPixels(drawContext.getColorPixels(), Vec4(0.0f, 0.0f, 0.0f, 1.0f), Vec4());
return (numBlackPixels == NUM_RENDER_PIXELS ? tcu::TestStatus::pass("OK") : tcu::TestStatus::fail("Rendered image(s) are incorrect"));
}
//! Wide line clipping
//! Spec: If the primitive is a line segment, then clipping does nothing to it if it lies entirely within the clip volume, and discards it
//! if it lies entirely outside the volume.
tcu::TestStatus testWideLines (Context& context, const LineOrientation lineOrientation)
{
requireFeatures(context.getInstanceInterface(), context.getPhysicalDevice(), FEATURE_WIDE_LINES);
std::vector<Shader> shaders;
shaders.push_back(Shader(VK_SHADER_STAGE_VERTEX_BIT, context.getBinaryCollection().get("vert")));
shaders.push_back(Shader(VK_SHADER_STAGE_FRAGMENT_BIT, context.getBinaryCollection().get("frag")));
const float delta = 0.1f; // much smaller than the line width
std::vector<Vec4> vertices;
if (lineOrientation == LINE_ORIENTATION_AXIS_ALIGNED)
{
// Axis-aligned lines just outside the clip volume.
const float p = 1.0f + delta;
const float q = 0.9f;
vertices.push_back(Vec4(-p, -q, 0.1f, 1.0f));
vertices.push_back(Vec4(-p, q, 0.9f, 1.0f)); // line 0
vertices.push_back(Vec4(-q, p, 0.1f, 1.0f));
vertices.push_back(Vec4( q, p, 0.9f, 1.0f)); // line 1
vertices.push_back(Vec4( p, q, 0.1f, 1.0f));
vertices.push_back(Vec4( p, -q, 0.9f, 1.0f)); // line 2
vertices.push_back(Vec4( q, -p, 0.1f, 1.0f));
vertices.push_back(Vec4(-q, -p, 0.9f, 1.0f)); // line 3
}
else if (lineOrientation == LINE_ORIENTATION_DIAGONAL)
{
// Diagonal lines just outside the clip volume.
const float p = 2.0f + delta;
vertices.push_back(Vec4( -p, 0.0f, 0.1f, 1.0f));
vertices.push_back(Vec4(0.0f, -p, 0.9f, 1.0f)); // line 0
vertices.push_back(Vec4(0.0f, -p, 0.1f, 1.0f));
vertices.push_back(Vec4( p, 0.0f, 0.9f, 1.0f)); // line 1
vertices.push_back(Vec4( p, 0.0f, 0.1f, 1.0f));
vertices.push_back(Vec4(0.0f, p, 0.9f, 1.0f)); // line 2
vertices.push_back(Vec4(0.0f, p, 0.1f, 1.0f));
vertices.push_back(Vec4( -p, 0.0f, 0.9f, 1.0f)); // line 3
}
else
DE_ASSERT(0);
const VkPhysicalDeviceLimits limits = getPhysicalDeviceProperties(context.getInstanceInterface(), context.getPhysicalDevice()).limits;
const float lineWidth = std::min(static_cast<float>(RENDER_SIZE), limits.lineWidthRange[1]);
tcu::TestLog& log = context.getTestContext().getLog();
log << tcu::TestLog::Message << "Drawing several wide lines just outside the clip volume. Expecting an empty image." << tcu::TestLog::EndMessage
<< tcu::TestLog::Message << "Line width is " << lineWidth << "." << tcu::TestLog::EndMessage;
DrawContext drawContext(context, shaders, vertices, VK_PRIMITIVE_TOPOLOGY_LINE_LIST, static_cast<deUint32>(RENDER_SIZE), false, false, lineWidth);
drawContext.draw();
// All pixels must be black -- nothing is drawn.
const int numBlackPixels = countPixels(drawContext.getColorPixels(), Vec4(0.0f, 0.0f, 0.0f, 1.0f), Vec4());
return (numBlackPixels == NUM_RENDER_PIXELS ? tcu::TestStatus::pass("OK") : tcu::TestStatus::fail("Rendered image(s) are incorrect"));
}
} // ClipVolume ns
namespace ClipDistance
{
struct CaseDefinition
{
const VkPrimitiveTopology topology;
const bool dynamicIndexing;
const bool enableTessellation;
const bool enableGeometry;
const int numClipDistances;
const int numCullDistances;
CaseDefinition (const VkPrimitiveTopology topology_,
const int numClipDistances_,
const int numCullDistances_,
const bool enableTessellation_,
const bool enableGeometry_,
const bool dynamicIndexing_)
: topology (topology_)
, dynamicIndexing (dynamicIndexing_)
, enableTessellation (enableTessellation_)
, enableGeometry (enableGeometry_)
, numClipDistances (numClipDistances_)
, numCullDistances (numCullDistances_)
{
}
};
void initPrograms (SourceCollections& programCollection, const CaseDefinition caseDef)
{
DE_ASSERT(caseDef.numClipDistances + caseDef.numCullDistances <= MAX_COMBINED_CLIP_AND_CULL_DISTANCES);
std::string perVertexBlock;
{
std::ostringstream str;
str << "gl_PerVertex {\n"
<< " vec4 gl_Position;\n";
if (caseDef.numClipDistances > 0)
str << " float gl_ClipDistance[" << caseDef.numClipDistances << "];\n";
if (caseDef.numCullDistances > 0)
str << " float gl_CullDistance[" << caseDef.numCullDistances << "];\n";
str << "}";
perVertexBlock = str.str();
}
// Vertex shader
{
std::ostringstream src;
src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_450) << "\n"
<< "\n"
<< "layout(location = 0) in vec4 v_position;\n"
<< "layout(location = 0) out vec4 out_color;\n"
<< "\n"
<< "out " << perVertexBlock << ";\n"
<< "\n"
<< "void main (void)\n"
<< "{\n"
<< " gl_Position = v_position;\n"
<< " out_color = vec4(1.0, 0.5 * (v_position.x + 1.0), 0.0, 1.0);\n"
<< "\n"
<< " const int barNdx = gl_VertexIndex / 6;\n";
if (caseDef.dynamicIndexing)
{
if (caseDef.numClipDistances > 0)
src << " for (int i = 0; i < " << caseDef.numClipDistances << "; ++i)\n"
<< " gl_ClipDistance[i] = (barNdx == i ? v_position.y : 0.0);\n";
if (caseDef.numCullDistances > 0)
src << " for (int i = 0; i < " << caseDef.numCullDistances << "; ++i)\n"
<< " gl_CullDistance[i] = 0.0;\n";
}
else
{
for (int i = 0; i < caseDef.numClipDistances; ++i)
src << " gl_ClipDistance[" << i << "] = (barNdx == " << i << " ? v_position.y : 0.0);\n";
for (int i = 0; i < caseDef.numCullDistances; ++i)
src << " gl_CullDistance[" << i << "] = 0.0;\n"; // don't cull anything
}
src << "}\n";
programCollection.glslSources.add("vert") << glu::VertexSource(src.str());
}
if (caseDef.enableTessellation)
{
std::ostringstream src;
src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_450) << "\n"
<< "\n"
<< "layout(vertices = " << NUM_PATCH_CONTROL_POINTS << ") out;\n"
<< "\n"
<< "layout(location = 0) in vec4 in_color[];\n"
<< "layout(location = 0) out vec4 out_color[];\n"
<< "\n"
<< "in " << perVertexBlock << " gl_in[gl_MaxPatchVertices];\n"
<< "\n"
<< "out " << perVertexBlock << " gl_out[];\n"
<< "\n"
<< "void main (void)\n"
<< "{\n"
<< " gl_TessLevelInner[0] = 1.0;\n"
<< " gl_TessLevelInner[1] = 1.0;\n"
<< "\n"
<< " gl_TessLevelOuter[0] = 1.0;\n"
<< " gl_TessLevelOuter[1] = 1.0;\n"
<< " gl_TessLevelOuter[2] = 1.0;\n"
<< " gl_TessLevelOuter[3] = 1.0;\n"
<< "\n"
<< " gl_out[gl_InvocationID].gl_Position = gl_in[gl_InvocationID].gl_Position;\n"
<< " out_color[gl_InvocationID] = in_color[gl_InvocationID];\n"
<< "\n";
if (caseDef.dynamicIndexing)
{
if (caseDef.numClipDistances > 0)
src << " for (int i = 0; i < " << caseDef.numClipDistances << "; ++i)\n"
<< " gl_out[gl_InvocationID].gl_ClipDistance[i] = gl_in[gl_InvocationID].gl_ClipDistance[i];\n";
if (caseDef.numCullDistances > 0)
src << " for (int i = 0; i < " << caseDef.numCullDistances << "; ++i)\n"
<< " gl_out[gl_InvocationID].gl_CullDistance[i] = gl_in[gl_InvocationID].gl_CullDistance[i];\n";
}
else
{
for (int i = 0; i < caseDef.numClipDistances; ++i)
src << " gl_out[gl_InvocationID].gl_ClipDistance[" << i << "] = gl_in[gl_InvocationID].gl_ClipDistance[" << i << "];\n";
for (int i = 0; i < caseDef.numCullDistances; ++i)
src << " gl_out[gl_InvocationID].gl_CullDistance[" << i << "] = gl_in[gl_InvocationID].gl_CullDistance[" << i << "];\n";
}
src << "}\n";
programCollection.glslSources.add("tesc") << glu::TessellationControlSource(src.str());
}
if (caseDef.enableTessellation)
{
DE_ASSERT(NUM_PATCH_CONTROL_POINTS == 3); // assumed in shader code
std::ostringstream src;
src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_450) << "\n"
<< "\n"
<< "layout(triangles, equal_spacing, ccw) in;\n"
<< "\n"
<< "layout(location = 0) in vec4 in_color[];\n"
<< "layout(location = 0) out vec4 out_color;\n"
<< "\n"
<< "in " << perVertexBlock << " gl_in[gl_MaxPatchVertices];\n"
<< "\n"
<< "out " << perVertexBlock << ";\n"
<< "\n"
<< "void main (void)\n"
<< "{\n"
<< " vec3 px = gl_TessCoord.x * gl_in[0].gl_Position.xyz;\n"
<< " vec3 py = gl_TessCoord.y * gl_in[1].gl_Position.xyz;\n"
<< " vec3 pz = gl_TessCoord.z * gl_in[2].gl_Position.xyz;\n"
<< " gl_Position = vec4(px + py + pz, 1.0);\n"
<< " out_color = (in_color[0] + in_color[1] + in_color[2]) / 3.0;\n"
<< "\n";
if (caseDef.dynamicIndexing)
{
if (caseDef.numClipDistances > 0)
src << " for (int i = 0; i < " << caseDef.numClipDistances << "; ++i)\n"
<< " gl_ClipDistance[i] = gl_TessCoord.x * gl_in[0].gl_ClipDistance[i]\n"
<< " + gl_TessCoord.y * gl_in[1].gl_ClipDistance[i]\n"
<< " + gl_TessCoord.z * gl_in[2].gl_ClipDistance[i];\n";
if (caseDef.numCullDistances > 0)
src << " for (int i = 0; i < " << caseDef.numCullDistances << "; ++i)\n"
<< " gl_CullDistance[i] = gl_TessCoord.x * gl_in[0].gl_CullDistance[i]\n"
<< " + gl_TessCoord.y * gl_in[1].gl_CullDistance[i]\n"
<< " + gl_TessCoord.z * gl_in[2].gl_CullDistance[i];\n";
}
else
{
for (int i = 0; i < caseDef.numClipDistances; ++i)
src << " gl_ClipDistance[" << i << "] = gl_TessCoord.x * gl_in[0].gl_ClipDistance[" << i << "]\n"
<< " + gl_TessCoord.y * gl_in[1].gl_ClipDistance[" << i << "]\n"
<< " + gl_TessCoord.z * gl_in[2].gl_ClipDistance[" << i << "];\n";
for (int i = 0; i < caseDef.numCullDistances; ++i)
src << " gl_CullDistance[" << i << "] = gl_TessCoord.x * gl_in[0].gl_CullDistance[" << i << "]\n"
<< " + gl_TessCoord.y * gl_in[1].gl_CullDistance[" << i << "]\n"
<< " + gl_TessCoord.z * gl_in[2].gl_CullDistance[" << i << "];\n";
}
src << "}\n";
programCollection.glslSources.add("tese") << glu::TessellationEvaluationSource(src.str());
}
if (caseDef.enableGeometry)
{
std::ostringstream src;
src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_450) << "\n"
<< "\n"
<< "layout(triangles) in;\n"
<< "layout(triangle_strip, max_vertices = 3) out;\n"
<< "\n"
<< "layout(location = 0) in vec4 in_color[];\n"
<< "layout(location = 0) out vec4 out_color;\n"
<< "\n"
<< "in " << perVertexBlock << " gl_in[];\n"
<< "\n"
<< "out " << perVertexBlock << ";\n"
<< "\n"
<< "void main (void)\n"
<< "{\n";
for (int vertNdx = 0; vertNdx < 3; ++vertNdx)
{
if (vertNdx > 0)
src << "\n";
src << " gl_Position = gl_in[" << vertNdx << "].gl_Position;\n"
<< " out_color = in_color[" << vertNdx << "];\n";
if (caseDef.dynamicIndexing)
{
if (caseDef.numClipDistances > 0)
src << " for (int i = 0; i < " << caseDef.numClipDistances << "; ++i)\n"
<< " gl_ClipDistance[i] = gl_in[" << vertNdx << "].gl_ClipDistance[i];\n";
if (caseDef.numCullDistances > 0)
src << " for (int i = 0; i < " << caseDef.numCullDistances << "; ++i)\n"
<< " gl_CullDistance[i] = gl_in[" << vertNdx << "].gl_CullDistance[i];\n";
}
else
{
for (int i = 0; i < caseDef.numClipDistances; ++i)
src << " gl_ClipDistance[" << i << "] = gl_in[" << vertNdx << "].gl_ClipDistance[" << i << "];\n";
for (int i = 0; i < caseDef.numCullDistances; ++i)
src << " gl_CullDistance[" << i << "] = gl_in[" << vertNdx << "].gl_CullDistance[" << i << "];\n";
}
src << " EmitVertex();\n";
}
src << "}\n";
programCollection.glslSources.add("geom") << glu::GeometrySource(src.str());
}
// Fragment shader
{
std::ostringstream src;
src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_450) << "\n"
<< "\n"
<< "layout(location = 0) in flat vec4 in_color;\n"
<< "layout(location = 0) out vec4 o_color;\n"
<< "\n"
<< "void main (void)\n"
<< "{\n"
<< " o_color = vec4(in_color.rgb + vec3(0.0, 0.0, 0.5), 1.0);\n" // mix with a constant color in case variable wasn't passed correctly through stages
<< "}\n";
programCollection.glslSources.add("frag") << glu::FragmentSource(src.str());
}
}
tcu::TestStatus testClipDistance (Context& context, const CaseDefinition caseDef)
{
// Check test requirements
{
const InstanceInterface& vki = context.getInstanceInterface();
const VkPhysicalDevice physDevice = context.getPhysicalDevice();
const VkPhysicalDeviceLimits limits = getPhysicalDeviceProperties(vki, physDevice).limits;
FeatureFlags requirements = (FeatureFlags)0;
if (caseDef.numClipDistances > 0)
requirements |= FEATURE_SHADER_CLIP_DISTANCE;
if (caseDef.numCullDistances > 0)
requirements |= FEATURE_SHADER_CULL_DISTANCE;
if (caseDef.enableTessellation)
requirements |= FEATURE_TESSELLATION_SHADER;
if (caseDef.enableGeometry)
requirements |= FEATURE_GEOMETRY_SHADER;
requireFeatures(vki, physDevice, requirements);
// Check limits for supported features
if (caseDef.numClipDistances > 0 && limits.maxClipDistances < MAX_CLIP_DISTANCES)
return tcu::TestStatus::fail("maxClipDistances smaller than the minimum required by the spec");
if (caseDef.numCullDistances > 0 && limits.maxCullDistances < MAX_CULL_DISTANCES)
return tcu::TestStatus::fail("maxCullDistances smaller than the minimum required by the spec");
if (caseDef.numCullDistances > 0 && limits.maxCombinedClipAndCullDistances < MAX_COMBINED_CLIP_AND_CULL_DISTANCES)
return tcu::TestStatus::fail("maxCombinedClipAndCullDistances smaller than the minimum required by the spec");
}
std::vector<Shader> shaders;
shaders.push_back(Shader(VK_SHADER_STAGE_VERTEX_BIT, context.getBinaryCollection().get("vert")));
shaders.push_back(Shader(VK_SHADER_STAGE_FRAGMENT_BIT, context.getBinaryCollection().get("frag")));
if (caseDef.enableTessellation)
{
shaders.push_back(Shader(VK_SHADER_STAGE_TESSELLATION_CONTROL_BIT, context.getBinaryCollection().get("tesc")));
shaders.push_back(Shader(VK_SHADER_STAGE_TESSELLATION_EVALUATION_BIT, context.getBinaryCollection().get("tese")));
}
if (caseDef.enableGeometry)
shaders.push_back(Shader(VK_SHADER_STAGE_GEOMETRY_BIT, context.getBinaryCollection().get("geom")));
const int numBars = MAX_COMBINED_CLIP_AND_CULL_DISTANCES;
std::vector<Vec4> vertices;
{
const float dx = 2.0f / numBars;
for (int i = 0; i < numBars; ++i)
{
const float x = -1.0f + dx * static_cast<float>(i);
vertices.push_back(Vec4(x, -1.0f, 0.0f, 1.0f));
vertices.push_back(Vec4(x, 1.0f, 0.0f, 1.0f));
vertices.push_back(Vec4(x + dx, -1.0f, 0.0f, 1.0f));
vertices.push_back(Vec4(x, 1.0f, 0.0f, 1.0f));
vertices.push_back(Vec4(x + dx, 1.0f, 0.0f, 1.0f));
vertices.push_back(Vec4(x + dx, -1.0f, 0.0f, 1.0f));
}
}
tcu::TestLog& log = context.getTestContext().getLog();
log << tcu::TestLog::Message << "Drawing " << numBars << " colored bars, clipping the first " << caseDef.numClipDistances << tcu::TestLog::EndMessage
<< tcu::TestLog::Message << "Using " << caseDef.numClipDistances << " ClipDistance(s) and " << caseDef.numCullDistances << " CullDistance(s)" << tcu::TestLog::EndMessage
<< tcu::TestLog::Message << "Expecting upper half of the clipped bars to be black." << tcu::TestLog::EndMessage;
DrawContext drawContext(context, shaders, vertices, caseDef.topology);
drawContext.draw();
// Count black pixels in the whole image.
const int numBlackPixels = countPixels(drawContext.getColorPixels(), Vec4(0.0f, 0.0f, 0.0f, 1.0f), Vec4());
const IVec2 clipRegion = IVec2(caseDef.numClipDistances * RENDER_SIZE / numBars, RENDER_SIZE / 2);
const int expectedClippedPixels = clipRegion.x() * clipRegion.y();
// Make sure the bottom half has no black pixels (possible if image became corrupted).
const int guardPixels = countPixels(drawContext.getColorPixels(), IVec2(0, RENDER_SIZE/2), clipRegion, Vec4(0.0f, 0.0f, 0.0f, 1.0f), Vec4());
return (numBlackPixels == expectedClippedPixels && guardPixels == 0 ? tcu::TestStatus::pass("OK")
: tcu::TestStatus::fail("Rendered image(s) are incorrect"));
}
} // ClipDistance ns
namespace ClipDistanceComplementarity
{
void initPrograms (SourceCollections& programCollection, const int numClipDistances)
{
// Vertex shader
{
DE_ASSERT(numClipDistances > 0);
const int clipDistanceLastNdx = numClipDistances - 1;
std::ostringstream src;
src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_450) << "\n"
<< "\n"
<< "layout(location = 0) in vec4 v_position; // we are passing ClipDistance in w component\n"
<< "\n"
<< "out gl_PerVertex {\n"
<< " vec4 gl_Position;\n"
<< " float gl_ClipDistance[" << numClipDistances << "];\n"
<< "};\n"
<< "\n"
<< "void main (void)\n"
<< "{\n"
<< " gl_Position = vec4(v_position.xyz, 1.0);\n";
for (int i = 0; i < clipDistanceLastNdx; ++i)
src << " gl_ClipDistance[" << i << "] = 0.0;\n";
src << " gl_ClipDistance[" << clipDistanceLastNdx << "] = v_position.w;\n"
<< "}\n";
programCollection.glslSources.add("vert") << glu::VertexSource(src.str());
}
// Fragment shader
{
std::ostringstream src;
src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_450) << "\n"
<< "\n"
<< "layout(location = 0) out vec4 o_color;\n"
<< "\n"
<< "void main (void)\n"
<< "{\n"
<< " o_color = vec4(1.0, 1.0, 1.0, 0.5);\n"
<< "}\n";
programCollection.glslSources.add("frag") << glu::FragmentSource(src.str());
}
}
tcu::TestStatus testComplementarity (Context& context, const int numClipDistances)
{
// Check test requirements
{
const InstanceInterface& vki = context.getInstanceInterface();
const VkPhysicalDevice physDevice = context.getPhysicalDevice();
requireFeatures(vki, physDevice, FEATURE_SHADER_CLIP_DISTANCE);
}
std::vector<Shader> shaders;
shaders.push_back(Shader(VK_SHADER_STAGE_VERTEX_BIT, context.getBinaryCollection().get("vert")));
shaders.push_back(Shader(VK_SHADER_STAGE_FRAGMENT_BIT, context.getBinaryCollection().get("frag")));
std::vector<Vec4> vertices;
{
de::Random rnd (1234);
const int numSections = 16;
const int numVerticesPerSection = 4; // logical verticies, due to triangle list topology we actually use 6 per section
DE_ASSERT(RENDER_SIZE_LARGE % numSections == 0);
std::vector<float> clipDistances(numVerticesPerSection * numSections);
for (int i = 0; i < static_cast<int>(clipDistances.size()); ++i)
clipDistances[i] = rnd.getFloat(-1.0f, 1.0f);
// Two sets of identical primitives, but with a different ClipDistance sign.
for (int setNdx = 0; setNdx < 2; ++setNdx)
{
const float sign = (setNdx == 0 ? 1.0f : -1.0f);
const float dx = 2.0f / static_cast<float>(numSections);
for (int i = 0; i < numSections; ++i)
{
const int ndxBase = numVerticesPerSection * i;
const float x = -1.0f + dx * static_cast<float>(i);
const Vec4 p0 = Vec4(x, -1.0f, 0.0f, sign * clipDistances[ndxBase + 0]);
const Vec4 p1 = Vec4(x, 1.0f, 0.0f, sign * clipDistances[ndxBase + 1]);
const Vec4 p2 = Vec4(x + dx, 1.0f, 0.0f, sign * clipDistances[ndxBase + 2]);
const Vec4 p3 = Vec4(x + dx, -1.0f, 0.0f, sign * clipDistances[ndxBase + 3]);
vertices.push_back(p0);
vertices.push_back(p1);
vertices.push_back(p2);
vertices.push_back(p2);
vertices.push_back(p3);
vertices.push_back(p0);
}
}
}
tcu::TestLog& log = context.getTestContext().getLog();
log << tcu::TestLog::Message << "Draw two sets of primitives with blending, differing only with ClipDistance sign." << tcu::TestLog::EndMessage
<< tcu::TestLog::Message << "Using " << numClipDistances << " clipping plane(s), one of them possibly having negative values." << tcu::TestLog::EndMessage
<< tcu::TestLog::Message << "Expecting a uniform gray area, no missing (black) nor overlapped (white) pixels." << tcu::TestLog::EndMessage;
DrawContext drawContext(context, shaders, vertices, VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST, static_cast<deUint32>(RENDER_SIZE_LARGE), false, true);
drawContext.draw();
const int numGrayPixels = countPixels(drawContext.getColorPixels(), Vec4(0.5f, 0.5f, 0.5f, 1.0f), Vec4(0.02f, 0.02f, 0.02f, 0.0f));
const int numExpectedPixels = RENDER_SIZE_LARGE * RENDER_SIZE_LARGE;
return (numGrayPixels == numExpectedPixels ? tcu::TestStatus::pass("OK") : tcu::TestStatus::fail("Rendered image(s) are incorrect"));
}
} // ClipDistanceComplementarity ns
void addClippingTests (tcu::TestCaseGroup* clippingTestsGroup)
{
tcu::TestContext& testCtx = clippingTestsGroup->getTestContext();
// Clipping against the clip volume
{
using namespace ClipVolume;
static const VkPrimitiveTopology cases[] =
{
VK_PRIMITIVE_TOPOLOGY_POINT_LIST,
VK_PRIMITIVE_TOPOLOGY_LINE_LIST,
VK_PRIMITIVE_TOPOLOGY_LINE_LIST_WITH_ADJACENCY,
VK_PRIMITIVE_TOPOLOGY_LINE_STRIP,
VK_PRIMITIVE_TOPOLOGY_LINE_STRIP_WITH_ADJACENCY,
VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST,
VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST_WITH_ADJACENCY,
VK_PRIMITIVE_TOPOLOGY_TRIANGLE_STRIP,
VK_PRIMITIVE_TOPOLOGY_TRIANGLE_STRIP_WITH_ADJACENCY,
VK_PRIMITIVE_TOPOLOGY_TRIANGLE_FAN,
};
MovePtr<tcu::TestCaseGroup> clipVolumeGroup(new tcu::TestCaseGroup(testCtx, "clip_volume", "clipping with the clip volume"));
// Fully inside the clip volume
{
MovePtr<tcu::TestCaseGroup> group(new tcu::TestCaseGroup(testCtx, "inside", ""));
for (int caseNdx = 0; caseNdx < DE_LENGTH_OF_ARRAY(cases); ++caseNdx)
addFunctionCaseWithPrograms<VkPrimitiveTopology>(
group.get(), getPrimitiveTopologyShortName(cases[caseNdx]), "", initPrograms, testPrimitivesInside, cases[caseNdx]);
clipVolumeGroup->addChild(group.release());
}
// Fully outside the clip volume
{
MovePtr<tcu::TestCaseGroup> group(new tcu::TestCaseGroup(testCtx, "outside", ""));
for (int caseNdx = 0; caseNdx < DE_LENGTH_OF_ARRAY(cases); ++caseNdx)
addFunctionCaseWithPrograms<VkPrimitiveTopology>(
group.get(), getPrimitiveTopologyShortName(cases[caseNdx]), "", initPrograms, testPrimitivesOutside, cases[caseNdx]);
clipVolumeGroup->addChild(group.release());
}
// Depth clamping
{
MovePtr<tcu::TestCaseGroup> group(new tcu::TestCaseGroup(testCtx, "depth_clamp", ""));
for (int caseNdx = 0; caseNdx < DE_LENGTH_OF_ARRAY(cases); ++caseNdx)
addFunctionCaseWithPrograms<VkPrimitiveTopology>(
group.get(), getPrimitiveTopologyShortName(cases[caseNdx]), "", initPrograms, testPrimitivesDepthClamp, cases[caseNdx]);
clipVolumeGroup->addChild(group.release());
}
// Large points and wide lines
{
// \note For both points and lines, if an unsupported size/width is selected, the nearest supported size will be chosen.
// We do have to check for feature support though.
MovePtr<tcu::TestCaseGroup> group(new tcu::TestCaseGroup(testCtx, "clipped", ""));
addFunctionCaseWithPrograms(group.get(), "large_points", "", initProgramsPointSize, testLargePoints);
addFunctionCaseWithPrograms<LineOrientation>(group.get(), "wide_lines_axis_aligned", "", initPrograms, testWideLines, LINE_ORIENTATION_AXIS_ALIGNED);
addFunctionCaseWithPrograms<LineOrientation>(group.get(), "wide_lines_diagonal", "", initPrograms, testWideLines, LINE_ORIENTATION_DIAGONAL);
clipVolumeGroup->addChild(group.release());
}
clippingTestsGroup->addChild(clipVolumeGroup.release());
}
// User-defined clip planes
{
MovePtr<tcu::TestCaseGroup> clipDistanceGroup(new tcu::TestCaseGroup(testCtx, "user_defined", "user-defined clip planes"));
// ClipDistance, CullDistance and maxCombinedClipAndCullDistances usage
{
using namespace ClipDistance;
static const struct
{
const char* const groupName;
const char* const description;
bool useCullDistance;
} caseGroups[] =
{
{ "clip_distance", "use ClipDistance", false },
{ "clip_cull_distance", "use ClipDistance and CullDistance at the same time", true },
};
const deUint32 flagTessellation = 1u << 0;
const deUint32 flagGeometry = 1u << 1;
for (int groupNdx = 0; groupNdx < DE_LENGTH_OF_ARRAY(caseGroups); ++groupNdx)
for (int indexingMode = 0; indexingMode < 2; ++indexingMode)
{
const bool dynamicIndexing = (indexingMode == 1);
const std::string mainGroupName = de::toString(caseGroups[groupNdx].groupName) + (dynamicIndexing ? "_dynamic_index" : "");
MovePtr<tcu::TestCaseGroup> mainGroup(new tcu::TestCaseGroup(testCtx, mainGroupName.c_str(), ""));
for (deUint32 shaderMask = 0u; shaderMask <= (flagTessellation | flagGeometry); ++shaderMask)
{
const bool useTessellation = (shaderMask & flagTessellation) != 0;
const bool useGeometry = (shaderMask & flagGeometry) != 0;
const std::string shaderGroupName = std::string("vert") + (useTessellation ? "_tess" : "") + (useGeometry ? "_geom" : "");
MovePtr<tcu::TestCaseGroup> shaderGroup(new tcu::TestCaseGroup(testCtx, shaderGroupName.c_str(), ""));
for (int numClipPlanes = 1; numClipPlanes <= MAX_CLIP_DISTANCES; ++numClipPlanes)
{
const int numCullPlanes = (caseGroups[groupNdx].useCullDistance
? std::min(static_cast<int>(MAX_CULL_DISTANCES), MAX_COMBINED_CLIP_AND_CULL_DISTANCES - numClipPlanes)
: 0);
const std::string caseName = de::toString(numClipPlanes) + (numCullPlanes > 0 ? "_" + de::toString(numCullPlanes) : "");
const VkPrimitiveTopology topology = (useTessellation ? VK_PRIMITIVE_TOPOLOGY_PATCH_LIST : VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST);
addFunctionCaseWithPrograms<CaseDefinition>(
shaderGroup.get(), caseName, caseGroups[groupNdx].description, initPrograms, testClipDistance,
CaseDefinition(topology, numClipPlanes, numCullPlanes, useTessellation, useGeometry, dynamicIndexing));
}
mainGroup->addChild(shaderGroup.release());
}
clipDistanceGroup->addChild(mainGroup.release());
}
}
// Complementarity criterion (i.e. clipped and not clipped areas must add up to a complete primitive with no holes nor overlap)
{
using namespace ClipDistanceComplementarity;
MovePtr<tcu::TestCaseGroup> group(new tcu::TestCaseGroup(testCtx, "complementarity", ""));
for (int numClipDistances = 1; numClipDistances <= MAX_CLIP_DISTANCES; ++numClipDistances)
addFunctionCaseWithPrograms<int>(group.get(), de::toString(numClipDistances).c_str(), "", initPrograms, testComplementarity, numClipDistances);
clippingTestsGroup->addChild(group.release());
}
clippingTestsGroup->addChild(clipDistanceGroup.release());
}
}
} // anonymous
tcu::TestCaseGroup* createTests (tcu::TestContext& testCtx)
{
return createTestGroup(testCtx, "clipping", "Clipping tests", addClippingTests);
}
} // clipping
} // vkt