Add ktx

ktx/tests/loadtests/vkloadtests/Texture.h

@@ -0,0 +1,111 @@
+/* -*- tab-width: 4; -*- */
+/* vi: set sw=2 ts=4 expandtab: */
+
+/*
+ * Copyright 2017-2020 Mark Callow.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <vector>
+
+#include "VulkanLoadTestSample.h"
+
+#include <glm/gtc/matrix_transform.hpp>
+
+class Texture : public VulkanLoadTestSample
+{
+  public:
+    Texture(VulkanContext& vkctx,
+            uint32_t width, uint32_t height,
+            const char* const szArgs,
+            const std::string sBasePath);
+    ~Texture();
+
+    virtual void resize(uint32_t width, uint32_t height);
+    virtual void run(uint32_t msTicks);
+
+    virtual void getOverlayText(VulkanTextOverlay *textOverlay, float yOffset);
+    virtual const char* customizeTitle(const char* const title);
+
+    static VulkanLoadTestSample*
+    create(VulkanContext& vkctx,
+           uint32_t width, uint32_t height,
+           const char* const szArgs, const std::string sBasePath);
+
+  protected:
+    enum class UseSuballocator
+    {
+        No = 0,
+        Yes
+    };
+
+    std::string filename;
+    ktxVulkanTexture texture;
+    vk::Sampler sampler;
+    vk::ImageView imageView;
+    vk::ImageTiling tiling;
+    UseSuballocator useSubAlloc;
+    vk::ComponentMapping swizzle;
+
+    struct {
+        vk::PipelineVertexInputStateCreateInfo inputState;
+        std::vector<vk::VertexInputBindingDescription> bindingDescriptions;
+        std::vector<vk::VertexInputAttributeDescription> attributeDescriptions;
+    } vertices;
+
+    MeshBuffer quad;
+    typedef std::array<float, 3> rgbcolor;
+    std::array<rgbcolor,4> quadColor;
+
+    UniformData uniformDataVS;
+
+    struct {
+        glm::mat4 projection;
+        glm::mat4 model;
+        glm::mat4 normal;
+        glm::vec4 viewPos;
+        float lodBias = 0.0f;
+    } uboVS;
+
+    struct {
+        vk::Pipeline solid;
+    } pipelines;
+
+    vk::PipelineLayout pipelineLayout;
+    vk::DescriptorSet descriptorSet;
+    vk::DescriptorSetLayout descriptorSetLayout;
+    vk::DescriptorPool descriptorPool;
+
+    int sign_s = 1;
+    int sign_t = 1;
+
+    bool transcoded;
+    vk::Format transcodedFormat;
+    std::string title;
+
+    void cleanup();
+    void buildCommandBuffers();
+    void generateQuad();
+    void setupVertexDescriptions();
+    void setupDescriptorPool();
+    void setupDescriptorSetLayout();
+    void setupDescriptorSet();
+    void preparePipelines();
+    // Prepare and initialize uniform buffer containing shader uniforms
+    void prepareUniformBuffers();
+    void updateUniformBuffers();
+    void prepareSamplerAndView();
+    void prepare();
+    
+    void processArgs(std::string sArgs);
+
+    virtual void keyPressed(uint32_t keyCode);
+    virtual void viewChanged()
+    {
+        updateUniformBuffers();
+    }
+
+    void changeLodBias(float delta);
+};
+
+