/*
 * Copyright (c) Hisilicon Technologies Co., Ltd. 2019-2020. All rights reserved.
 * Description: Common header
 * Author:
 * Create: 2019-08-23
 */

#ifndef COMMON_H
#define COMMON_H

#include <GLES2/gl2.h>
#include <ft2build.h>
#include FT_FREETYPE_H
#include "DFXDefine.h"

namespace dolgles {
#define FONTSIZE_STANDARD 40
constexpr EGL_U32 FBO_INVALID_HANDLE = 0xffffffff;

struct TagFrameBuffObject {
    EGL_U32 fboHandleIndex = FBO_INVALID_HANDLE;
    GLuint colorTex = 0;
    GLuint frameBuffId = 0;
    GLint width = 0;
    GLint height = 0;
};

using FrameBuffObject = TagFrameBuffObject;

struct TagColorRGBA {
    GLfloat red = 0.0;
    GLfloat green = 0.0;
    GLfloat blue = 0.0;
    GLfloat alpha = 0.0;
};

using ColorRGBA = TagColorRGBA;

struct TagGLRectInfo {
    GLfloat x = 0.0;
    GLfloat y = 0.0;
    GLfloat width = 0.0;
    GLfloat height = 0.0;
};

using GLRectInfo = TagGLRectInfo;

struct TagGLRoundInfo {
    GLfloat x = 0.0;
    GLfloat y = 0.0;
    GLfloat rw = 0.0;
    GLfloat rh = 0.0;
};

using GLRoundInfo = TagGLRoundInfo;

struct TagGLBlitInfo {
    FrameBuffObject srcFBO;
    FrameBuffObject dstFBO;
    GLRectInfo srcRect;
    GLRectInfo dstRect;
};

using GLBlitInfo = TagGLBlitInfo;

struct TagPoint {
    GLfloat x = 0.0; // vertex x
    GLfloat y = 0.0; // vertex y
    GLfloat z = 0.0; // z is texture coord x in vertex shader
    GLfloat w = 0.0; // w is texture coord y in vertex shader
};

using Point = TagPoint;

struct TagGLTextInfo {
    const EGL_CHAR16 *text = nullptr;
    EGL_U32 textLen = 0;
    ColorRGBA fgColor;
    ColorRGBA bgColor;
    EGL_U8 justify = 0;
    FT_UInt fontSize = 0;
    FT_Bool isBold = false;
    FT_Bool isUnderLine = false;
    FT_Bool isItalic = false;
};

using GLTextInfo = TagGLTextInfo;

struct TagGLBitmapInfo {
    void *bitmap = nullptr;
    GLRectInfo dstRect;
    GLsizei texWidth = 0;
    GLsizei texHeight = 0;
    GLint colorFormat = 0;
    bool isBlend = false;
};

using GLBitmapInfo = TagGLBitmapInfo;

struct TagGlyphInfo {
    GLfloat advX = 0.0; // advance.x
    GLfloat advY = 0.0; // advance.y
    GLfloat bWidth = 0.0; // bitmap.width
    GLfloat bHeight = 0.0; // bitmap.height
    GLfloat bLeft = 0.0; // bitmap_left
    GLfloat bTop = 0.0; // bitmap_top
    GLfloat texX = 0.0; // x offset of glyph in texture coordinates
    GLfloat texY = 0.0; // y offset of glyph in texture coordinates
}; // character information

using GlyphInfo = TagGlyphInfo;
}; // namespace dolgles

#endif // end COMMON_H