154 lines
6.3 KiB
C
154 lines
6.3 KiB
C
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/*
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* Header: VZNL_Graphics.h
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* Description:当前文件为伟景智能(Vizum)所研发的EyeCB板提供绘图函数接口。
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* 目前提供了绘制矩形，圆形，线等方法
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*
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* Sample: // 在图像左上角绘制一个长宽各100像素的空心红色矩形。
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* VZNLHANDLE hGraphics = VzNL_BeginPaint();
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*
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* SVzNLRect sRect = {0, 0, 100, 100};
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* VzNL_DrawRect(hGraphics, &sRect, 0xffff0000， 0, 1);
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*
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* VzNL_EndPaint(hGraphics);
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* Author: Mjw
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* Date: 2018/08/28
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*/
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#ifndef __VIZUM_GRAPHICS_HEADER__
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#define __VIZUM_GRAPHICS_HEADER__
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#include "VZNL_Types.h"
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#if defined(_WIN32)
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#ifdef VZNL_GRAPHICS_EXPORTS
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#ifdef __cplusplus
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#define VZNL_GRAPHICS_API extern "C" __declspec(dllexport)
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#else
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#define VZNL_GRAPHICS_API __declspec(dllexport)
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#endif
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#else
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#ifdef __cplusplus
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#define VZNL_GRAPHICS_API extern "C" __declspec(dllimport)
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#else
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#define VZNL_GRAPHICS_API __declspec(dllimport)
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#endif
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#ifdef _DEBUG
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#pragma comment(lib, "VzNLGraphicsd.lib")
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#else
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#pragma comment(lib, "VzNLGraphics.lib")
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#endif
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#endif
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#else
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#ifndef VZNL_GRAPHICS_API
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#ifdef __cplusplus
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#define VZNL_GRAPHICS_API extern "C" __attribute__((visibility("default")))
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#else
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#define VZNL_GRAPHICS_API __attribute__((visibility("default")))
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#endif
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#endif
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#endif
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/// @brief
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/// 开始绘图
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/// <param name = "pImageData">[in]传入数据buffer</param>
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/// @return 返回绘图工具handle
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VZNL_GRAPHICS_API VZNLHANDLE VzNL_BeginPaint(SVzNLImageData* pImageData);
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/// @brief
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/// 绘制矩形
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/// <param name = "handle">[in]绘图工具handle。</param>
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/// <param name = "pRect">[in]要绘制的位置。</param>
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/// <param name = "dwFrameColor">[in]边框颜色</param>
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/// <param name = "dwFillColor">[in]填充色</param>
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/// <param name = "nBorder">[in]边框宽度</param>
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/// @return 绘制完成返回true
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VZNL_GRAPHICS_API int VzNL_DrawRect(VZNLHANDLE hHandle, const SVzNL2DPoint sPoint[4], unsigned long dwFrameColor, unsigned long dwFillColor, unsigned int nBorder);
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/// @brief
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/// 绘制多边形
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/// <param name = "handle">[in]绘图工具handle。</param>
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/// <param name = "pRect">[in]要绘制的位置。</param>
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/// <param name = "dwFrameColor">[in]边框颜色</param>
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/// <param name = "dwFillColor">[in]填充色</param>
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/// <param name = "nBorder">[in]边框宽度</param>
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/// @return 绘制完成返回true
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VZNL_GRAPHICS_API int VzNL_DrawPolygon(VZNLHANDLE hHandle, const SVzNL2DPoint* psPoint, const unsigned int nPtCount, unsigned long dwFrameColor, unsigned long dwFillColor, unsigned int nBorder);
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/// @brief
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/// 绘制圆形
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/// <param name = "handle">[in]绘图工具handle。</param>
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/// <param name = "pPoint">[in]中点位置。</param>
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/// <param name = "nRadius">[in]半径。</param>
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/// <param name = "dwFrameColor">[in]边框颜色</param>
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/// <param name = "dwFillColor">[in]填充色</param>
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/// <param name = "nBorder">[in]边框宽度</param>
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/// @return 绘制完成返回true
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VZNL_GRAPHICS_API int VzNL_DrawCircle(VZNLHANDLE hHandle, const SVzNL2DPoint sPoint, int nRadius, unsigned long dwFrameColor, unsigned long dwFillColor, unsigned int nBorder);
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/// @brief
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/// 绘制椭圆
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/// <param name = "handle">[in]绘图工具handle。</param>
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/// <param name = "pPoint">[in]中点位置。</param>
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/// <param name = "nRadius">[in]半径。</param>
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/// <param name = "dwFrameColor">[in]边框颜色</param>
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/// <param name = "dwFillColor">[in]填充色</param>
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/// <param name = "nBorder">[in]边框宽度</param>
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/// @return 绘制完成返回true
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VZNL_GRAPHICS_API int VzNL_DrawEllipe(VZNLHANDLE hHandle, const SVzNL2DPoint sPoint, unsigned long dwFrameColor, unsigned long dwFillColor, unsigned int nLongAxes, unsigned int nShortAxes, double angle, unsigned int nBorder);
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/// @brief
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/// 绘制直线
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/// <param name = "handle">[in]绘图工具handle。</param>
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/// <param name = "pPoint[2]">[in]直线的两个点位置。</param>
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/// @return 绘制完成返回true
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VZNL_GRAPHICS_API int VzNL_DrawLine(VZNLHANDLE hHandle, unsigned long dwColor, const SVzNL2DPoint sPoint[2], unsigned int nBorder);
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/// @brief
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/// 绘制文字
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/// <parma name = "text">[in]文字内容</param>
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/// <parma name = "palce">[in]坐上起点</param>
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/// <parma name = "fontSize">[in]字体大小</param>
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/// <parma name = "clrTxt">[in]字体颜色</param>
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VZNL_GRAPHICS_API int VzNL_DrawText(VZNLHANDLE hHandle, const char* text, SVzNL2DPoint& palce, int fontSize, unsigned long clrTxt);
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/// @brief
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/// 结束绘图
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/// <param name = "handle">[in]绘图工具handle。</param>
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VZNL_GRAPHICS_API void VzNL_EndPaint(VZNLHANDLE hHandle);
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/// @brief
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/// 显示一个图像（linux因为版本比较繁杂，支持的界面库不同，所以这个函数linux目前不可用）
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/// <param name = "szWindowName">[in]窗口名</param>
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/// <param name = "pImageData">[in]压缩图像数据结构</param>
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VZNL_GRAPHICS_API void VzNL_ShowImage(const char* szWindowName, const SVzNLImageData* pImageData);
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/// @brief
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/// 存储图像。
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/// <param name = "szFileName">[in]文件全路径</param>
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/// <param name = "pImageData">[in]压缩图像数据结构</param>
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/// @return 成功返回0，失败返回错误码
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VZNL_GRAPHICS_API int VzNL_SaveImage(const char* szFileName, const SVzNLImageData* pImageData);
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/// @brief
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/// 存储图像。
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/// <param name = "szFileName">[in]文件全路径</param>
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/// <param name = "pImageData">[in]压缩图像数据结构</param>
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/// @return 成功返回0，失败返回错误码
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VZNL_GRAPHICS_API int VzNL_SaveScaleImage(const char* szFileName, SVzNLImageData* pImageData, SVzVideoResolution* psResolution);
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/// @brief
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/// 压缩图片
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/// <param name = "handle">[in]绘图工具handle。</param>
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/// <param name = "eCompress">[in]压缩类型。</param>
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/// <param name = "pSrc">[in]数据源（无压缩）。</param>
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/// <param name = "pDst">[out]压缩后的数据。</param>
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/// @return 成功返回0，失败返回错误码
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VZNL_GRAPHICS_API int VzNL_CompressImage(EVzNLImageCompress eCompress, SVzNLImageData* pSrc, SVzNLCompressData** pDst);
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/// @brief
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/// 释放压缩图片
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VZNL_GRAPHICS_API void VzNL_ReleaseCompressImage(SVzNLCompressData** pDst);
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#endif // __VIZUM_GRAPHICS_HEADER__
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