text.hpp

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/*
Copyright (c) 2024 Rahul Satish Vadhyar
 
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.
*/
 
#pragma once
#ifndef WIN32
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-function"
#ifdef __clang__
#pragma clang diagnostic ignored "-Weverything"
#endif
#endif
#include "stb_font_consolas_24_latin1.inl"
#ifndef WIN32
#pragma GCC diagnostic pop
#endif
 
#include "object.hpp"
#include "texture.hpp"
#include "engineStructs.hpp"
namespace Chronos {
namespace Engine {
 
    struct FontTypes {
    uint32_t fontWidth;
    uint32_t fontHeight;
    void (*getFontData)(stb_fontchar*, unsigned char[][256], int);
    uint32_t firstChar;
    int numChars;
    };
 
    class Text : public Chronos::Engine::Object {
    public:
    void init(Chronos::Engine::Device* device, VkCommandPool commandPool,
        Chronos::Engine::SwapChain* swapChain, VkSampler textureSampler,
        VkRenderPass* renderPass, Chronos::Engine::FontTypes fontStyle);
 
    void destroy() override;
 
    void clear();
 
    void render(uint32_t currentFrame, uint32_t imageIndex,
        float bgColor[3], VkViewport& viewport, VkRect2D& scissor,
        std::vector<VkCommandBuffer>& commandBuffers) override;
    void update(uint32_t currentFrame) override;
 
    VkBuffer vertexBuffer;
 
    uint32_t numLetters;
 
    Chronos::Engine::TextParams params;
 
    private:
    stb_fontchar stbFontData[STB_FONT_consolas_24_latin1_NUM_CHARS];
    uint32_t maxTextLength = 2048;
    VkDeviceMemory vertexBufferMemory;
    Chronos::Engine::Texture fontTexture;
 
    std::vector<Chronos::Engine::ColorBuffer> colorBuffers;
 
    uint32_t firstChar = 'a';
 
    FontTypes fontStyle;
 
    void createDescriptorSets() override;
 
    std::vector<VkDescriptorType> getDescriptorTypes() override;
 
    std::vector<VkShaderStageFlagBits> getDescriptorStages() override;
 
    PipelineAttributes getPipelineAttributes() override;
 
    void updateBuffer();
 
    glm::vec4* mappedMemory;
 
    unsigned char (*fontpixels)[256];
    };
 
};
};