//
// Created by zengjiale on 2022/4/21.
//



#include "textureloadutil.h"
#define STB_IMAGE_WRITE_IMPLEMENTATION


#define LOG_TAG "TextureLoadUtil"
#define ELOGE(...) yyeva::ELog::get()->e(LOG_TAG, __VA_ARGS__)
#define ELOGV(...) yyeva::ELog::get()->i(LOG_TAG, __VA_ARGS__)

#ifndef __OHOS__
GLuint TextureLoadUtil::loadTexture(unsigned char *bitmap, AndroidBitmapInfo* info) {
#else
    GLuint TextureLoadUtil::loadTexture(unsigned char *bitmap, OH_NativeBuffer_Config* info) {
#endif
    if (bitmap == nullptr) {
        ELOGE("bitmap = null");
        return 0;
    }

    GLuint textureObjectIds = -1;
    glGenTextures(1, &textureObjectIds);
    if (textureObjectIds == -1) {
        glDeleteTextures(1, &textureObjectIds);
        ELOGE("textureObjectIds = 0");
        return -1;
    }

    glBindTexture(GL_TEXTURE_2D, textureObjectIds);
//    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
//    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
    //纹理放大缩小使用线性插值
    glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);
    glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
    //超出的部份会重复纹理坐标的边缘，产生一种边缘被拉伸的效果，s/t相当于x/y轴坐标
    glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_S,GL_CLAMP_TO_EDGE);
    glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_T,GL_CLAMP_TO_EDGE);

    GLint format = GL_RGB;
#ifdef __OHOS__
    if (info->format == NATIVEBUFFER_PIXEL_FMT_RGB_565) { // RGB三通道，例如jpg格式
        format = GL_RGB;
    } else if (info->format ==
        NATIVEBUFFER_PIXEL_FMT_RGBA_8888) { // RGBA四通道，例如png格式 android图片是ARGB排列，所以还是要做图片转换的
        format = GL_RGBA;
    }
#else
    if (info->format == ANDROID_BITMAP_FORMAT_RGB_565) { //RGB三通道，例如jpg格式
        format = GL_RGB;
    } else if (info->format == ANDROID_BITMAP_FORMAT_RGBA_8888) {  //RGBA四通道，例如png格式 android图片是ARGB排列，所以还是要做图片转换的
        format = GL_RGBA;
    }
#endif
    //将图片数据生成一个2D纹理
    glTexImage2D(GL_TEXTURE_2D, 0, format, info->width, info->height, 0, format, GL_UNSIGNED_BYTE,
                 bitmap);

    glGenerateMipmap(GL_TEXTURE_2D);
    glBindTexture(GL_TEXTURE_2D, 0);
    return textureObjectIds;
}

GLuint TextureLoadUtil::loadTexture(shared_ptr<EvaSrc> src) {
    if (src->bitmap == nullptr) {
        ELOGE("bitmap = null");
        return 0;
    }

    GLuint textureObjectIds = -1;
    glGenTextures(1, &textureObjectIds);
    if (textureObjectIds == -1) {
        glDeleteTextures(1, &textureObjectIds);
        ELOGE("textureObjectIds = 0");
        return -1;
    }

    glBindTexture(GL_TEXTURE_2D, textureObjectIds);
//    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
//    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
    //纹理放大缩小使用线性插值
    glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);
    glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
    //超出的部份会重复纹理坐标的边缘，产生一种边缘被拉伸的效果，s/t相当于x/y轴坐标
    glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_S,GL_CLAMP_TO_BORDER_EXT);
    glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_T,GL_CLAMP_TO_BORDER_EXT);

    GLint format = GL_RGB;
#ifdef __OHOS__
    if (src->bitmapFormat == NATIVEBUFFER_PIXEL_FMT_RGB_565) { // RGB三通道，例如jpg格式
        format = GL_RGB;
    } else if (src->bitmapFormat ==
        NATIVEBUFFER_PIXEL_FMT_RGBA_8888) { // RGBA四通道，例如png格式 android图片是ARGB排列，所以还是要做图片转换的
        format = GL_RGBA;
    }
#else
    if (src->bitmapFormat == ANDROID_BITMAP_FORMAT_RGB_565) { //RGB三通道，例如jpg格式
        format = GL_RGB;
    } else if (src->bitmapFormat == ANDROID_BITMAP_FORMAT_RGBA_8888) {  //RGBA四通道，例如png格式 android图片是ARGB排列，所以还是要做图片转换的
        format = GL_RGBA;
    }
#endif
    //像素对齐，不然jpg图片会显示错位
    glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
    //将图片数据生成一个2D纹理
    glTexImage2D(GL_TEXTURE_2D, 0, format, src->bitmapWidth, src->bitmapHeight, 0, format, GL_UNSIGNED_BYTE,
                 src->bitmap);

    glGenerateMipmap(GL_TEXTURE_2D);
    glBindTexture(GL_TEXTURE_2D, 0);
//
//    if (stbi_write_png(src->saveAddress.c_str(), src->bitmapWidth, src->bitmapHeight, 4,
//                       src->bitmap, 0)) {
//        ELOGV("save address = %s success", src->saveAddress.c_str());
//    } else {
//        ELOGE("save address = %s fail", src->saveAddress.c_str());
//    }
    src->srcTextureId = textureObjectIds;
    return textureObjectIds;
}

void TextureLoadUtil::releaseTexture(GLuint textureId) {
    if (textureId != 0) {
        glDeleteTextures(1,&textureId);
    }
}