50 lines
1.3 KiB
C++
50 lines
1.3 KiB
C++
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#include "ImageHelper.h"
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#include <vector>
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#include "../external/QRCode/QrCode.hpp"
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//#include "GL/mesa_gl.h"
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#include <GL/mesa_gl.h>
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#include <GL/gl.h>
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ImageHelper::ImageHelper()
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{
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}
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ImageHelper::~ImageHelper()
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{
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}
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GLuint ImageHelper::GetQr(std::string strcode)
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{
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if (strcode.empty())return 0;
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std::vector<unsigned char> qrcode;
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qrcodegen::QrCode qr0 = qrcodegen::QrCode::encodeText(strcode.c_str(), qrcodegen::QrCode::Ecc::MEDIUM);
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for (int y = 0; y < qr0.getSize(); y++) {
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for (int x = 0; x < qr0.getSize(); x++) {
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if (qr0.getModule(x, y)) {
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qrcode.push_back(0);
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qrcode.push_back(0);
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qrcode.push_back(0);
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}
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else {
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qrcode.push_back(0xFF);
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qrcode.push_back(0xFF);
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qrcode.push_back(0xFF);
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}
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}
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}
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GLuint tex;
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glGenTextures(1, &tex);
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if (tex > 0) {
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glBindTexture(GL_TEXTURE_2D, tex);
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glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, qr0.getSize(), qr0.getSize(), 0, GL_RGB, GL_UNSIGNED_BYTE, &qrcode[0]);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, 0x812F);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, 0x812F);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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glBindTexture(GL_TEXTURE_2D, 0);
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}
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return tex;
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}
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